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"../../../node_modules/@sentry/browser/src/integrations/httpcontext.ts", "../../../node_modules/@sentry/browser/src/integrations/linkederrors.ts", "../../../node_modules/@sentry/browser/src/sdk.ts", "../../../node_modules/@sentry-internal/replay/src/constants.ts", "../../../node_modules/node_modules/@sentry-internal/rrweb/dist/rrweb.js", "../../../node_modules/@sentry-internal/replay/src/types/rrweb.ts", "../../../node_modules/@sentry-internal/replay/src/util/timestamp.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/addBreadcrumbEvent.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/domUtils.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/onWindowOpen.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleClick.ts", "../../../node_modules/@sentry-internal/replay/src/util/createBreadcrumb.ts", "../../../node_modules/node_modules/@sentry-internal/rrweb-snapshot/dist/rrweb-snapshot.js", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/getAttributesToRecord.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleDom.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleKeyboardEvent.ts", "../../../node_modules/@sentry-internal/replay/src/util/createPerformanceEntries.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/performanceObserver.ts", "../../../node_modules/@sentry-internal/replay/src/debug-build.ts", "../../../node_modules/@sentry-internal/replay-worker/build/esm/worker.ts", "../../../node_modules/@sentry-internal/replay-worker/build/esm/index.js", "../../../node_modules/@sentry-internal/replay/src/util/logger.ts", "../../../node_modules/@sentry-internal/replay/src/eventBuffer/error.ts", "../../../node_modules/@sentry-internal/replay/src/eventBuffer/EventBufferArray.ts", "../../../node_modules/@sentry-internal/replay/src/eventBuffer/WorkerHandler.ts", "../../../node_modules/@sentry-internal/replay/src/eventBuffer/EventBufferCompressionWorker.ts", "../../../node_modules/@sentry-internal/replay/src/eventBuffer/EventBufferProxy.ts", "../../../node_modules/@sentry-internal/replay/src/eventBuffer/index.ts", "../../../node_modules/@sentry-internal/replay/src/util/hasSessionStorage.ts", "../../../node_modules/@sentry-internal/replay/src/session/clearSession.ts", "../../../node_modules/@sentry-internal/replay/src/util/isSampled.ts", "../../../node_modules/@sentry-internal/replay/src/session/Session.ts", "../../../node_modules/@sentry-internal/replay/src/session/saveSession.ts", "../../../node_modules/@sentry-internal/replay/src/session/createSession.ts", "../../../node_modules/@sentry-internal/replay/src/session/fetchSession.ts", "../../../node_modules/@sentry-internal/replay/src/util/isExpired.ts", "../../../node_modules/@sentry-internal/replay/src/util/isSessionExpired.ts", "../../../node_modules/@sentry-internal/replay/src/session/shouldRefreshSession.ts", "../../../node_modules/@sentry-internal/replay/src/session/loadOrCreateSession.ts", "../../../node_modules/@sentry-internal/replay/src/util/addEvent.ts", "../../../node_modules/@sentry-internal/replay/src/util/eventUtils.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleAfterSendEvent.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleBeforeSendEvent.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleBreadcrumbs.ts", "../../../node_modules/@sentry-internal/replay/src/util/isRrwebError.ts", "../../../node_modules/@sentry-internal/replay/src/util/resetReplayIdOnDynamicSamplingContext.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/addFeedbackBreadcrumb.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/shouldSampleForBufferEvent.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleGlobalEvent.ts", "../../../node_modules/@sentry-internal/replay/src/util/createPerformanceSpans.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleHistory.ts", "../../../node_modules/@sentry-internal/replay/src/util/shouldFilterRequest.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/addNetworkBreadcrumb.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/networkUtils.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/fetchUtils.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/util/xhrUtils.ts", "../../../node_modules/@sentry-internal/replay/src/coreHandlers/handleNetworkBreadcrumbs.ts", "../../../node_modules/@sentry-internal/replay/src/util/addGlobalListeners.ts", "../../../node_modules/@sentry-internal/replay/src/util/addMemoryEntry.ts", "../../../node_modules/@sentry-internal/replay/src/util/debounce.ts", "../../../node_modules/@sentry-internal/replay/src/util/getRecordingSamplingOptions.ts", "../../../node_modules/@sentry-internal/replay/src/util/handleRecordingEmit.ts", "../../../node_modules/@sentry-internal/replay/src/util/createReplayEnvelope.ts", "../../../node_modules/@sentry-internal/replay/src/util/prepareRecordingData.ts", "../../../node_modules/@sentry-internal/replay/src/util/prepareReplayEvent.ts", "../../../node_modules/@sentry-internal/replay/src/util/sendReplayRequest.ts", "../../../node_modules/@sentry-internal/replay/src/util/sendReplay.ts", "../../../node_modules/@sentry-internal/replay/src/util/throttle.ts", "../../../node_modules/@sentry-internal/replay/src/replay.ts", "../../../node_modules/@sentry-internal/replay/src/util/getPrivacyOptions.ts", "../../../node_modules/@sentry-internal/replay/src/util/maskAttribute.ts", "../../../node_modules/@sentry-internal/replay/src/integration.ts", "../../../node_modules/@sentry-internal/replay/src/util/getReplay.ts", "../../javascript/sentry-browser.js", "../../../node_modules/@rails/activestorage/app/assets/javascripts/activestorage.esm.js", "../../javascript/application-main.js"], "sourcesContent": ["export default {\n logger: typeof console !== \"undefined\" ? console : undefined,\n WebSocket: typeof WebSocket !== \"undefined\" ? WebSocket : undefined,\n}\n", "import adapters from \"./adapters\"\n\n// The logger is disabled by default. You can enable it with:\n//\n// ActionCable.logger.enabled = true\n//\n// Example:\n//\n// import * as ActionCable from '@rails/actioncable'\n//\n// ActionCable.logger.enabled = true\n// ActionCable.logger.log('Connection Established.')\n//\n\nexport default {\n log(...messages) {\n if (this.enabled) {\n messages.push(Date.now())\n adapters.logger.log(\"[ActionCable]\", ...messages)\n }\n },\n}\n", "import logger from \"./logger\"\n\n// Responsible for ensuring the cable connection is in good health by validating the heartbeat pings sent from the server, and attempting\n// revival reconnections if things go astray. Internal class, not intended for direct user manipulation.\n\nconst now = () => new Date().getTime()\n\nconst secondsSince = time => (now() - time) / 1000\n\nclass ConnectionMonitor {\n constructor(connection) {\n this.visibilityDidChange = this.visibilityDidChange.bind(this)\n this.connection = connection\n this.reconnectAttempts = 0\n }\n\n start() {\n if (!this.isRunning()) {\n this.startedAt = now()\n delete this.stoppedAt\n this.startPolling()\n addEventListener(\"visibilitychange\", this.visibilityDidChange)\n logger.log(`ConnectionMonitor started. stale threshold = ${this.constructor.staleThreshold} s`)\n }\n }\n\n stop() {\n if (this.isRunning()) {\n this.stoppedAt = now()\n this.stopPolling()\n removeEventListener(\"visibilitychange\", this.visibilityDidChange)\n logger.log(\"ConnectionMonitor stopped\")\n }\n }\n\n isRunning() {\n return this.startedAt && !this.stoppedAt\n }\n\n recordMessage() {\n this.pingedAt = now()\n }\n\n recordConnect() {\n this.reconnectAttempts = 0\n delete this.disconnectedAt\n logger.log(\"ConnectionMonitor recorded connect\")\n }\n\n recordDisconnect() {\n this.disconnectedAt = now()\n logger.log(\"ConnectionMonitor recorded disconnect\")\n }\n\n // Private\n\n startPolling() {\n this.stopPolling()\n this.poll()\n }\n\n stopPolling() {\n clearTimeout(this.pollTimeout)\n }\n\n poll() {\n this.pollTimeout = setTimeout(() => {\n this.reconnectIfStale()\n this.poll()\n }\n , this.getPollInterval())\n }\n\n getPollInterval() {\n const { staleThreshold, reconnectionBackoffRate } = this.constructor\n const backoff = Math.pow(1 + reconnectionBackoffRate, Math.min(this.reconnectAttempts, 10))\n const jitterMax = this.reconnectAttempts === 0 ? 1.0 : reconnectionBackoffRate\n const jitter = jitterMax * Math.random()\n return staleThreshold * 1000 * backoff * (1 + jitter)\n }\n\n reconnectIfStale() {\n if (this.connectionIsStale()) {\n logger.log(`ConnectionMonitor detected stale connection. reconnectAttempts = ${this.reconnectAttempts}, time stale = ${secondsSince(this.refreshedAt)} s, stale threshold = ${this.constructor.staleThreshold} s`)\n this.reconnectAttempts++\n if (this.disconnectedRecently()) {\n logger.log(`ConnectionMonitor skipping reopening recent disconnect. time disconnected = ${secondsSince(this.disconnectedAt)} s`)\n } else {\n logger.log(\"ConnectionMonitor reopening\")\n this.connection.reopen()\n }\n }\n }\n\n get refreshedAt() {\n return this.pingedAt ? this.pingedAt : this.startedAt\n }\n\n connectionIsStale() {\n return secondsSince(this.refreshedAt) > this.constructor.staleThreshold\n }\n\n disconnectedRecently() {\n return this.disconnectedAt && (secondsSince(this.disconnectedAt) < this.constructor.staleThreshold)\n }\n\n visibilityDidChange() {\n if (document.visibilityState === \"visible\") {\n setTimeout(() => {\n if (this.connectionIsStale() || !this.connection.isOpen()) {\n logger.log(`ConnectionMonitor reopening stale connection on visibilitychange. visibilityState = ${document.visibilityState}`)\n this.connection.reopen()\n }\n }\n , 200)\n }\n }\n\n}\n\nConnectionMonitor.staleThreshold = 6 // Server::Connections::BEAT_INTERVAL * 2 (missed two pings)\nConnectionMonitor.reconnectionBackoffRate = 0.15\n\nexport default ConnectionMonitor\n", "export default {\n \"message_types\": {\n \"welcome\": \"welcome\",\n \"disconnect\": \"disconnect\",\n \"ping\": \"ping\",\n \"confirmation\": \"confirm_subscription\",\n \"rejection\": \"reject_subscription\"\n },\n \"disconnect_reasons\": {\n \"unauthorized\": \"unauthorized\",\n \"invalid_request\": \"invalid_request\",\n \"server_restart\": \"server_restart\",\n \"remote\": \"remote\"\n },\n \"default_mount_path\": \"/cable\",\n \"protocols\": [\n \"actioncable-v1-json\",\n \"actioncable-unsupported\"\n ]\n}\n", "import adapters from \"./adapters\"\nimport ConnectionMonitor from \"./connection_monitor\"\nimport INTERNAL from \"./internal\"\nimport logger from \"./logger\"\n\n// Encapsulate the cable connection held by the consumer. This is an internal class not intended for direct user manipulation.\n\nconst {message_types, protocols} = INTERNAL\nconst supportedProtocols = protocols.slice(0, protocols.length - 1)\n\nconst indexOf = [].indexOf\n\nclass Connection {\n constructor(consumer) {\n this.open = this.open.bind(this)\n this.consumer = consumer\n this.subscriptions = this.consumer.subscriptions\n this.monitor = new ConnectionMonitor(this)\n this.disconnected = true\n }\n\n send(data) {\n if (this.isOpen()) {\n this.webSocket.send(JSON.stringify(data))\n return true\n } else {\n return false\n }\n }\n\n open() {\n if (this.isActive()) {\n logger.log(`Attempted to open WebSocket, but existing socket is ${this.getState()}`)\n return false\n } else {\n const socketProtocols = [...protocols, ...this.consumer.subprotocols || []]\n logger.log(`Opening WebSocket, current state is ${this.getState()}, subprotocols: ${socketProtocols}`)\n if (this.webSocket) { this.uninstallEventHandlers() }\n this.webSocket = new adapters.WebSocket(this.consumer.url, socketProtocols)\n this.installEventHandlers()\n this.monitor.start()\n return true\n }\n }\n\n close({allowReconnect} = {allowReconnect: true}) {\n if (!allowReconnect) { this.monitor.stop() }\n // Avoid closing websockets in a \"connecting\" state due to Safari 15.1+ bug. See: https://github.com/rails/rails/issues/43835#issuecomment-1002288478\n if (this.isOpen()) {\n return this.webSocket.close()\n }\n }\n\n reopen() {\n logger.log(`Reopening WebSocket, current state is ${this.getState()}`)\n if (this.isActive()) {\n try {\n return this.close()\n } catch (error) {\n logger.log(\"Failed to reopen WebSocket\", error)\n }\n finally {\n logger.log(`Reopening WebSocket in ${this.constructor.reopenDelay}ms`)\n setTimeout(this.open, this.constructor.reopenDelay)\n }\n } else {\n return this.open()\n }\n }\n\n getProtocol() {\n if (this.webSocket) {\n return this.webSocket.protocol\n }\n }\n\n isOpen() {\n return this.isState(\"open\")\n }\n\n isActive() {\n return this.isState(\"open\", \"connecting\")\n }\n\n triedToReconnect() {\n return this.monitor.reconnectAttempts > 0\n }\n\n // Private\n\n isProtocolSupported() {\n return indexOf.call(supportedProtocols, this.getProtocol()) >= 0\n }\n\n isState(...states) {\n return indexOf.call(states, this.getState()) >= 0\n }\n\n getState() {\n if (this.webSocket) {\n for (let state in adapters.WebSocket) {\n if (adapters.WebSocket[state] === this.webSocket.readyState) {\n return state.toLowerCase()\n }\n }\n }\n return null\n }\n\n installEventHandlers() {\n for (let eventName in this.events) {\n const handler = this.events[eventName].bind(this)\n this.webSocket[`on${eventName}`] = handler\n }\n }\n\n uninstallEventHandlers() {\n for (let eventName in this.events) {\n this.webSocket[`on${eventName}`] = function() {}\n }\n }\n\n}\n\nConnection.reopenDelay = 500\n\nConnection.prototype.events = {\n message(event) {\n if (!this.isProtocolSupported()) { return }\n const {identifier, message, reason, reconnect, type} = JSON.parse(event.data)\n this.monitor.recordMessage()\n switch (type) {\n case message_types.welcome:\n if (this.triedToReconnect()) {\n this.reconnectAttempted = true\n }\n this.monitor.recordConnect()\n return this.subscriptions.reload()\n case message_types.disconnect:\n logger.log(`Disconnecting. Reason: ${reason}`)\n return this.close({allowReconnect: reconnect})\n case message_types.ping:\n return null\n case message_types.confirmation:\n this.subscriptions.confirmSubscription(identifier)\n if (this.reconnectAttempted) {\n this.reconnectAttempted = false\n return this.subscriptions.notify(identifier, \"connected\", {reconnected: true})\n } else {\n return this.subscriptions.notify(identifier, \"connected\", {reconnected: false})\n }\n case message_types.rejection:\n return this.subscriptions.reject(identifier)\n default:\n return this.subscriptions.notify(identifier, \"received\", message)\n }\n },\n\n open() {\n logger.log(`WebSocket onopen event, using '${this.getProtocol()}' subprotocol`)\n this.disconnected = false\n if (!this.isProtocolSupported()) {\n logger.log(\"Protocol is unsupported. Stopping monitor and disconnecting.\")\n return this.close({allowReconnect: false})\n }\n },\n\n close(event) {\n logger.log(\"WebSocket onclose event\")\n if (this.disconnected) { return }\n this.disconnected = true\n this.monitor.recordDisconnect()\n return this.subscriptions.notifyAll(\"disconnected\", {willAttemptReconnect: this.monitor.isRunning()})\n },\n\n error() {\n logger.log(\"WebSocket onerror event\")\n }\n}\n\nexport default Connection\n", "// A new subscription is created through the ActionCable.Subscriptions instance available on the consumer.\n// It provides a number of callbacks and a method for calling remote procedure calls on the corresponding\n// Channel instance on the server side.\n//\n// An example demonstrates the basic functionality:\n//\n// App.appearance = App.cable.subscriptions.create(\"AppearanceChannel\", {\n// connected() {\n// // Called once the subscription has been successfully completed\n// },\n//\n// disconnected({ willAttemptReconnect: boolean }) {\n// // Called when the client has disconnected with the server.\n// // The object will have an `willAttemptReconnect` property which\n// // says whether the client has the intention of attempting\n// // to reconnect.\n// },\n//\n// appear() {\n// this.perform('appear', {appearing_on: this.appearingOn()})\n// },\n//\n// away() {\n// this.perform('away')\n// },\n//\n// appearingOn() {\n// $('main').data('appearing-on')\n// }\n// })\n//\n// The methods #appear and #away forward their intent to the remote AppearanceChannel instance on the server\n// by calling the `perform` method with the first parameter being the action (which maps to AppearanceChannel#appear/away).\n// The second parameter is a hash that'll get JSON encoded and made available on the server in the data parameter.\n//\n// This is how the server component would look:\n//\n// class AppearanceChannel < ApplicationActionCable::Channel\n// def subscribed\n// current_user.appear\n// end\n//\n// def unsubscribed\n// current_user.disappear\n// end\n//\n// def appear(data)\n// current_user.appear on: data['appearing_on']\n// end\n//\n// def away\n// current_user.away\n// end\n// end\n//\n// The \"AppearanceChannel\" name is automatically mapped between the client-side subscription creation and the server-side Ruby class name.\n// The AppearanceChannel#appear/away public methods are exposed automatically to client-side invocation through the perform method.\n\nconst extend = function(object, properties) {\n if (properties != null) {\n for (let key in properties) {\n const value = properties[key]\n object[key] = value\n }\n }\n return object\n}\n\nexport default class Subscription {\n constructor(consumer, params = {}, mixin) {\n this.consumer = consumer\n this.identifier = JSON.stringify(params)\n extend(this, mixin)\n }\n\n // Perform a channel action with the optional data passed as an attribute\n perform(action, data = {}) {\n data.action = action\n return this.send(data)\n }\n\n send(data) {\n return this.consumer.send({command: \"message\", identifier: this.identifier, data: JSON.stringify(data)})\n }\n\n unsubscribe() {\n return this.consumer.subscriptions.remove(this)\n }\n}\n", "import logger from \"./logger\"\n\n// Responsible for ensuring channel subscribe command is confirmed, retrying until confirmation is received.\n// Internal class, not intended for direct user manipulation.\n\nclass SubscriptionGuarantor {\n constructor(subscriptions) {\n this.subscriptions = subscriptions\n this.pendingSubscriptions = []\n }\n\n guarantee(subscription) {\n if(this.pendingSubscriptions.indexOf(subscription) == -1){ \n logger.log(`SubscriptionGuarantor guaranteeing ${subscription.identifier}`)\n this.pendingSubscriptions.push(subscription) \n }\n else {\n logger.log(`SubscriptionGuarantor already guaranteeing ${subscription.identifier}`)\n }\n this.startGuaranteeing()\n }\n\n forget(subscription) {\n logger.log(`SubscriptionGuarantor forgetting ${subscription.identifier}`)\n this.pendingSubscriptions = (this.pendingSubscriptions.filter((s) => s !== subscription))\n }\n\n startGuaranteeing() {\n this.stopGuaranteeing()\n this.retrySubscribing()\n }\n \n stopGuaranteeing() {\n clearTimeout(this.retryTimeout)\n }\n\n retrySubscribing() {\n this.retryTimeout = setTimeout(() => {\n if (this.subscriptions && typeof(this.subscriptions.subscribe) === \"function\") {\n this.pendingSubscriptions.map((subscription) => {\n logger.log(`SubscriptionGuarantor resubscribing ${subscription.identifier}`)\n this.subscriptions.subscribe(subscription)\n })\n }\n }\n , 500)\n }\n}\n\nexport default SubscriptionGuarantor", "import Subscription from \"./subscription\"\nimport SubscriptionGuarantor from \"./subscription_guarantor\"\nimport logger from \"./logger\"\n\n// Collection class for creating (and internally managing) channel subscriptions.\n// The only method intended to be triggered by the user is ActionCable.Subscriptions#create,\n// and it should be called through the consumer like so:\n//\n// App = {}\n// App.cable = ActionCable.createConsumer(\"ws://example.com/accounts/1\")\n// App.appearance = App.cable.subscriptions.create(\"AppearanceChannel\")\n//\n// For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription.\n\nexport default class Subscriptions {\n constructor(consumer) {\n this.consumer = consumer\n this.guarantor = new SubscriptionGuarantor(this)\n this.subscriptions = []\n }\n\n create(channelName, mixin) {\n const channel = channelName\n const params = typeof channel === \"object\" ? channel : {channel}\n const subscription = new Subscription(this.consumer, params, mixin)\n return this.add(subscription)\n }\n\n // Private\n\n add(subscription) {\n this.subscriptions.push(subscription)\n this.consumer.ensureActiveConnection()\n this.notify(subscription, \"initialized\")\n this.subscribe(subscription)\n return subscription\n }\n\n remove(subscription) {\n this.forget(subscription)\n if (!this.findAll(subscription.identifier).length) {\n this.sendCommand(subscription, \"unsubscribe\")\n }\n return subscription\n }\n\n reject(identifier) {\n return this.findAll(identifier).map((subscription) => {\n this.forget(subscription)\n this.notify(subscription, \"rejected\")\n return subscription\n })\n }\n\n forget(subscription) {\n this.guarantor.forget(subscription)\n this.subscriptions = (this.subscriptions.filter((s) => s !== subscription))\n return subscription\n }\n\n findAll(identifier) {\n return this.subscriptions.filter((s) => s.identifier === identifier)\n }\n\n reload() {\n return this.subscriptions.map((subscription) =>\n this.subscribe(subscription))\n }\n\n notifyAll(callbackName, ...args) {\n return this.subscriptions.map((subscription) =>\n this.notify(subscription, callbackName, ...args))\n }\n\n notify(subscription, callbackName, ...args) {\n let subscriptions\n if (typeof subscription === \"string\") {\n subscriptions = this.findAll(subscription)\n } else {\n subscriptions = [subscription]\n }\n\n return subscriptions.map((subscription) =>\n (typeof subscription[callbackName] === \"function\" ? subscription[callbackName](...args) : undefined))\n }\n\n subscribe(subscription) {\n if (this.sendCommand(subscription, \"subscribe\")) {\n this.guarantor.guarantee(subscription)\n }\n }\n\n confirmSubscription(identifier) {\n logger.log(`Subscription confirmed ${identifier}`)\n this.findAll(identifier).map((subscription) =>\n this.guarantor.forget(subscription))\n }\n\n sendCommand(subscription, command) {\n const {identifier} = subscription\n return this.consumer.send({command, identifier})\n }\n}\n", "import Connection from \"./connection\"\nimport Subscriptions from \"./subscriptions\"\n\n// The ActionCable.Consumer establishes the connection to a server-side Ruby Connection object. Once established,\n// the ActionCable.ConnectionMonitor will ensure that its properly maintained through heartbeats and checking for stale updates.\n// The Consumer instance is also the gateway to establishing subscriptions to desired channels through the #createSubscription\n// method.\n//\n// The following example shows how this can be set up:\n//\n// App = {}\n// App.cable = ActionCable.createConsumer(\"ws://example.com/accounts/1\")\n// App.appearance = App.cable.subscriptions.create(\"AppearanceChannel\")\n//\n// For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription.\n//\n// When a consumer is created, it automatically connects with the server.\n//\n// To disconnect from the server, call\n//\n// App.cable.disconnect()\n//\n// and to restart the connection:\n//\n// App.cable.connect()\n//\n// Any channel subscriptions which existed prior to disconnecting will\n// automatically resubscribe.\n\nexport default class Consumer {\n constructor(url) {\n this._url = url\n this.subscriptions = new Subscriptions(this)\n this.connection = new Connection(this)\n this.subprotocols = []\n }\n\n get url() {\n return createWebSocketURL(this._url)\n }\n\n send(data) {\n return this.connection.send(data)\n }\n\n connect() {\n return this.connection.open()\n }\n\n disconnect() {\n return this.connection.close({allowReconnect: false})\n }\n\n ensureActiveConnection() {\n if (!this.connection.isActive()) {\n return this.connection.open()\n }\n }\n\n addSubProtocol(subprotocol) {\n this.subprotocols = [...this.subprotocols, subprotocol]\n }\n}\n\nexport function createWebSocketURL(url) {\n if (typeof url === \"function\") {\n url = url()\n }\n\n if (url && !/^wss?:/i.test(url)) {\n const a = document.createElement(\"a\")\n a.href = url\n // Fix populating Location properties in IE. Otherwise, protocol will be blank.\n a.href = a.href\n a.protocol = a.protocol.replace(\"http\", \"ws\")\n return a.href\n } else {\n return url\n }\n}\n", "import Connection from \"./connection\"\nimport ConnectionMonitor from \"./connection_monitor\"\nimport Consumer, { createWebSocketURL } from \"./consumer\"\nimport INTERNAL from \"./internal\"\nimport Subscription from \"./subscription\"\nimport Subscriptions from \"./subscriptions\"\nimport SubscriptionGuarantor from \"./subscription_guarantor\"\nimport adapters from \"./adapters\"\nimport logger from \"./logger\"\n\nexport {\n Connection,\n ConnectionMonitor,\n Consumer,\n INTERNAL,\n Subscription,\n Subscriptions,\n SubscriptionGuarantor,\n adapters,\n createWebSocketURL,\n logger,\n}\n\nexport function createConsumer(url = getConfig(\"url\") || INTERNAL.default_mount_path) {\n return new Consumer(url)\n}\n\nexport function getConfig(name) {\n const element = document.head.querySelector(`meta[name='action-cable-${name}']`)\n if (element) {\n return element.getAttribute(\"content\")\n }\n}\n", "/* eslint-disable no-multi-assign */\n\nfunction deepFreeze(obj) {\n if (obj instanceof Map) {\n obj.clear =\n obj.delete =\n obj.set =\n function () {\n throw new Error('map is read-only');\n };\n } else if (obj instanceof Set) {\n obj.add =\n obj.clear =\n obj.delete =\n function () {\n throw new Error('set is read-only');\n };\n }\n\n // Freeze self\n Object.freeze(obj);\n\n Object.getOwnPropertyNames(obj).forEach((name) => {\n const prop = obj[name];\n const type = typeof prop;\n\n // Freeze prop if it is an object or function and also not already frozen\n if ((type === 'object' || type === 'function') && !Object.isFrozen(prop)) {\n deepFreeze(prop);\n }\n });\n\n return obj;\n}\n\n/** @typedef {import('highlight.js').CallbackResponse} CallbackResponse */\n/** @typedef {import('highlight.js').CompiledMode} CompiledMode */\n/** @implements CallbackResponse */\n\nclass Response {\n /**\n * @param {CompiledMode} mode\n */\n constructor(mode) {\n // eslint-disable-next-line no-undefined\n if (mode.data === undefined) mode.data = {};\n\n this.data = mode.data;\n this.isMatchIgnored = false;\n }\n\n ignoreMatch() {\n this.isMatchIgnored = true;\n }\n}\n\n/**\n * @param {string} value\n * @returns {string}\n */\nfunction escapeHTML(value) {\n return value\n .replace(/&/g, '&')\n .replace(//g, '>')\n .replace(/\"/g, '"')\n .replace(/'/g, ''');\n}\n\n/**\n * performs a shallow merge of multiple objects into one\n *\n * @template T\n * @param {T} original\n * @param {Record[]} objects\n * @returns {T} a single new object\n */\nfunction inherit$1(original, ...objects) {\n /** @type Record */\n const result = Object.create(null);\n\n for (const key in original) {\n result[key] = original[key];\n }\n objects.forEach(function(obj) {\n for (const key in obj) {\n result[key] = obj[key];\n }\n });\n return /** @type {T} */ (result);\n}\n\n/**\n * @typedef {object} Renderer\n * @property {(text: string) => void} addText\n * @property {(node: Node) => void} openNode\n * @property {(node: Node) => void} closeNode\n * @property {() => string} value\n */\n\n/** @typedef {{scope?: string, language?: string, sublanguage?: boolean}} Node */\n/** @typedef {{walk: (r: Renderer) => void}} Tree */\n/** */\n\nconst SPAN_CLOSE = '';\n\n/**\n * Determines if a node needs to be wrapped in \n *\n * @param {Node} node */\nconst emitsWrappingTags = (node) => {\n // rarely we can have a sublanguage where language is undefined\n // TODO: track down why\n return !!node.scope;\n};\n\n/**\n *\n * @param {string} name\n * @param {{prefix:string}} options\n */\nconst scopeToCSSClass = (name, { prefix }) => {\n // sub-language\n if (name.startsWith(\"language:\")) {\n return name.replace(\"language:\", \"language-\");\n }\n // tiered scope: comment.line\n if (name.includes(\".\")) {\n const pieces = name.split(\".\");\n return [\n `${prefix}${pieces.shift()}`,\n ...(pieces.map((x, i) => `${x}${\"_\".repeat(i + 1)}`))\n ].join(\" \");\n }\n // simple scope\n return `${prefix}${name}`;\n};\n\n/** @type {Renderer} */\nclass HTMLRenderer {\n /**\n * Creates a new HTMLRenderer\n *\n * @param {Tree} parseTree - the parse tree (must support `walk` API)\n * @param {{classPrefix: string}} options\n */\n constructor(parseTree, options) {\n this.buffer = \"\";\n this.classPrefix = options.classPrefix;\n parseTree.walk(this);\n }\n\n /**\n * Adds texts to the output stream\n *\n * @param {string} text */\n addText(text) {\n this.buffer += escapeHTML(text);\n }\n\n /**\n * Adds a node open to the output stream (if needed)\n *\n * @param {Node} node */\n openNode(node) {\n if (!emitsWrappingTags(node)) return;\n\n const className = scopeToCSSClass(node.scope,\n { prefix: this.classPrefix });\n this.span(className);\n }\n\n /**\n * Adds a node close to the output stream (if needed)\n *\n * @param {Node} node */\n closeNode(node) {\n if (!emitsWrappingTags(node)) return;\n\n this.buffer += SPAN_CLOSE;\n }\n\n /**\n * returns the accumulated buffer\n */\n value() {\n return this.buffer;\n }\n\n // helpers\n\n /**\n * Builds a span element\n *\n * @param {string} className */\n span(className) {\n this.buffer += ``;\n }\n}\n\n/** @typedef {{scope?: string, language?: string, children: Node[]} | string} Node */\n/** @typedef {{scope?: string, language?: string, children: Node[]} } DataNode */\n/** @typedef {import('highlight.js').Emitter} Emitter */\n/** */\n\n/** @returns {DataNode} */\nconst newNode = (opts = {}) => {\n /** @type DataNode */\n const result = { children: [] };\n Object.assign(result, opts);\n return result;\n};\n\nclass TokenTree {\n constructor() {\n /** @type DataNode */\n this.rootNode = newNode();\n this.stack = [this.rootNode];\n }\n\n get top() {\n return this.stack[this.stack.length - 1];\n }\n\n get root() { return this.rootNode; }\n\n /** @param {Node} node */\n add(node) {\n this.top.children.push(node);\n }\n\n /** @param {string} scope */\n openNode(scope) {\n /** @type Node */\n const node = newNode({ scope });\n this.add(node);\n this.stack.push(node);\n }\n\n closeNode() {\n if (this.stack.length > 1) {\n return this.stack.pop();\n }\n // eslint-disable-next-line no-undefined\n return undefined;\n }\n\n closeAllNodes() {\n while (this.closeNode());\n }\n\n toJSON() {\n return JSON.stringify(this.rootNode, null, 4);\n }\n\n /**\n * @typedef { import(\"./html_renderer\").Renderer } Renderer\n * @param {Renderer} builder\n */\n walk(builder) {\n // this does not\n return this.constructor._walk(builder, this.rootNode);\n // this works\n // return TokenTree._walk(builder, this.rootNode);\n }\n\n /**\n * @param {Renderer} builder\n * @param {Node} node\n */\n static _walk(builder, node) {\n if (typeof node === \"string\") {\n builder.addText(node);\n } else if (node.children) {\n builder.openNode(node);\n node.children.forEach((child) => this._walk(builder, child));\n builder.closeNode(node);\n }\n return builder;\n }\n\n /**\n * @param {Node} node\n */\n static _collapse(node) {\n if (typeof node === \"string\") return;\n if (!node.children) return;\n\n if (node.children.every(el => typeof el === \"string\")) {\n // node.text = node.children.join(\"\");\n // delete node.children;\n node.children = [node.children.join(\"\")];\n } else {\n node.children.forEach((child) => {\n TokenTree._collapse(child);\n });\n }\n }\n}\n\n/**\n Currently this is all private API, but this is the minimal API necessary\n that an Emitter must implement to fully support the parser.\n\n Minimal interface:\n\n - addText(text)\n - __addSublanguage(emitter, subLanguageName)\n - startScope(scope)\n - endScope()\n - finalize()\n - toHTML()\n\n*/\n\n/**\n * @implements {Emitter}\n */\nclass TokenTreeEmitter extends TokenTree {\n /**\n * @param {*} options\n */\n constructor(options) {\n super();\n this.options = options;\n }\n\n /**\n * @param {string} text\n */\n addText(text) {\n if (text === \"\") { return; }\n\n this.add(text);\n }\n\n /** @param {string} scope */\n startScope(scope) {\n this.openNode(scope);\n }\n\n endScope() {\n this.closeNode();\n }\n\n /**\n * @param {Emitter & {root: DataNode}} emitter\n * @param {string} name\n */\n __addSublanguage(emitter, name) {\n /** @type DataNode */\n const node = emitter.root;\n if (name) node.scope = `language:${name}`;\n\n this.add(node);\n }\n\n toHTML() {\n const renderer = new HTMLRenderer(this, this.options);\n return renderer.value();\n }\n\n finalize() {\n this.closeAllNodes();\n return true;\n }\n}\n\n/**\n * @param {string} value\n * @returns {RegExp}\n * */\n\n/**\n * @param {RegExp | string } re\n * @returns {string}\n */\nfunction source(re) {\n if (!re) return null;\n if (typeof re === \"string\") return re;\n\n return re.source;\n}\n\n/**\n * @param {RegExp | string } re\n * @returns {string}\n */\nfunction lookahead(re) {\n return concat('(?=', re, ')');\n}\n\n/**\n * @param {RegExp | string } re\n * @returns {string}\n */\nfunction anyNumberOfTimes(re) {\n return concat('(?:', re, ')*');\n}\n\n/**\n * @param {RegExp | string } re\n * @returns {string}\n */\nfunction optional(re) {\n return concat('(?:', re, ')?');\n}\n\n/**\n * @param {...(RegExp | string) } args\n * @returns {string}\n */\nfunction concat(...args) {\n const joined = args.map((x) => source(x)).join(\"\");\n return joined;\n}\n\n/**\n * @param { Array } args\n * @returns {object}\n */\nfunction stripOptionsFromArgs(args) {\n const opts = args[args.length - 1];\n\n if (typeof opts === 'object' && opts.constructor === Object) {\n args.splice(args.length - 1, 1);\n return opts;\n } else {\n return {};\n }\n}\n\n/** @typedef { {capture?: boolean} } RegexEitherOptions */\n\n/**\n * Any of the passed expresssions may match\n *\n * Creates a huge this | this | that | that match\n * @param {(RegExp | string)[] | [...(RegExp | string)[], RegexEitherOptions]} args\n * @returns {string}\n */\nfunction either(...args) {\n /** @type { object & {capture?: boolean} } */\n const opts = stripOptionsFromArgs(args);\n const joined = '('\n + (opts.capture ? \"\" : \"?:\")\n + args.map((x) => source(x)).join(\"|\") + \")\";\n return joined;\n}\n\n/**\n * @param {RegExp | string} re\n * @returns {number}\n */\nfunction countMatchGroups(re) {\n return (new RegExp(re.toString() + '|')).exec('').length - 1;\n}\n\n/**\n * Does lexeme start with a regular expression match at the beginning\n * @param {RegExp} re\n * @param {string} lexeme\n */\nfunction startsWith(re, lexeme) {\n const match = re && re.exec(lexeme);\n return match && match.index === 0;\n}\n\n// BACKREF_RE matches an open parenthesis or backreference. To avoid\n// an incorrect parse, it additionally matches the following:\n// - [...] elements, where the meaning of parentheses and escapes change\n// - other escape sequences, so we do not misparse escape sequences as\n// interesting elements\n// - non-matching or lookahead parentheses, which do not capture. These\n// follow the '(' with a '?'.\nconst BACKREF_RE = /\\[(?:[^\\\\\\]]|\\\\.)*\\]|\\(\\??|\\\\([1-9][0-9]*)|\\\\./;\n\n// **INTERNAL** Not intended for outside usage\n// join logically computes regexps.join(separator), but fixes the\n// backreferences so they continue to match.\n// it also places each individual regular expression into it's own\n// match group, keeping track of the sequencing of those match groups\n// is currently an exercise for the caller. :-)\n/**\n * @param {(string | RegExp)[]} regexps\n * @param {{joinWith: string}} opts\n * @returns {string}\n */\nfunction _rewriteBackreferences(regexps, { joinWith }) {\n let numCaptures = 0;\n\n return regexps.map((regex) => {\n numCaptures += 1;\n const offset = numCaptures;\n let re = source(regex);\n let out = '';\n\n while (re.length > 0) {\n const match = BACKREF_RE.exec(re);\n if (!match) {\n out += re;\n break;\n }\n out += re.substring(0, match.index);\n re = re.substring(match.index + match[0].length);\n if (match[0][0] === '\\\\' && match[1]) {\n // Adjust the backreference.\n out += '\\\\' + String(Number(match[1]) + offset);\n } else {\n out += match[0];\n if (match[0] === '(') {\n numCaptures++;\n }\n }\n }\n return out;\n }).map(re => `(${re})`).join(joinWith);\n}\n\n/** @typedef {import('highlight.js').Mode} Mode */\n/** @typedef {import('highlight.js').ModeCallback} ModeCallback */\n\n// Common regexps\nconst MATCH_NOTHING_RE = /\\b\\B/;\nconst IDENT_RE = '[a-zA-Z]\\\\w*';\nconst UNDERSCORE_IDENT_RE = '[a-zA-Z_]\\\\w*';\nconst NUMBER_RE = '\\\\b\\\\d+(\\\\.\\\\d+)?';\nconst C_NUMBER_RE = '(-?)(\\\\b0[xX][a-fA-F0-9]+|(\\\\b\\\\d+(\\\\.\\\\d*)?|\\\\.\\\\d+)([eE][-+]?\\\\d+)?)'; // 0x..., 0..., decimal, float\nconst BINARY_NUMBER_RE = '\\\\b(0b[01]+)'; // 0b...\nconst RE_STARTERS_RE = '!|!=|!==|%|%=|&|&&|&=|\\\\*|\\\\*=|\\\\+|\\\\+=|,|-|-=|/=|/|:|;|<<|<<=|<=|<|===|==|=|>>>=|>>=|>=|>>>|>>|>|\\\\?|\\\\[|\\\\{|\\\\(|\\\\^|\\\\^=|\\\\||\\\\|=|\\\\|\\\\||~';\n\n/**\n* @param { Partial & {binary?: string | RegExp} } opts\n*/\nconst SHEBANG = (opts = {}) => {\n const beginShebang = /^#![ ]*\\//;\n if (opts.binary) {\n opts.begin = concat(\n beginShebang,\n /.*\\b/,\n opts.binary,\n /\\b.*/);\n }\n return inherit$1({\n scope: 'meta',\n begin: beginShebang,\n end: /$/,\n relevance: 0,\n /** @type {ModeCallback} */\n \"on:begin\": (m, resp) => {\n if (m.index !== 0) resp.ignoreMatch();\n }\n }, opts);\n};\n\n// Common modes\nconst BACKSLASH_ESCAPE = {\n begin: '\\\\\\\\[\\\\s\\\\S]', relevance: 0\n};\nconst APOS_STRING_MODE = {\n scope: 'string',\n begin: '\\'',\n end: '\\'',\n illegal: '\\\\n',\n contains: [BACKSLASH_ESCAPE]\n};\nconst QUOTE_STRING_MODE = {\n scope: 'string',\n begin: '\"',\n end: '\"',\n illegal: '\\\\n',\n contains: [BACKSLASH_ESCAPE]\n};\nconst PHRASAL_WORDS_MODE = {\n begin: /\\b(a|an|the|are|I'm|isn't|don't|doesn't|won't|but|just|should|pretty|simply|enough|gonna|going|wtf|so|such|will|you|your|they|like|more)\\b/\n};\n/**\n * Creates a comment mode\n *\n * @param {string | RegExp} begin\n * @param {string | RegExp} end\n * @param {Mode | {}} [modeOptions]\n * @returns {Partial}\n */\nconst COMMENT = function(begin, end, modeOptions = {}) {\n const mode = inherit$1(\n {\n scope: 'comment',\n begin,\n end,\n contains: []\n },\n modeOptions\n );\n mode.contains.push({\n scope: 'doctag',\n // hack to avoid the space from being included. the space is necessary to\n // match here to prevent the plain text rule below from gobbling up doctags\n begin: '[ ]*(?=(TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):)',\n end: /(TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):/,\n excludeBegin: true,\n relevance: 0\n });\n const ENGLISH_WORD = either(\n // list of common 1 and 2 letter words in English\n \"I\",\n \"a\",\n \"is\",\n \"so\",\n \"us\",\n \"to\",\n \"at\",\n \"if\",\n \"in\",\n \"it\",\n \"on\",\n // note: this is not an exhaustive list of contractions, just popular ones\n /[A-Za-z]+['](d|ve|re|ll|t|s|n)/, // contractions - can't we'd they're let's, etc\n /[A-Za-z]+[-][a-z]+/, // `no-way`, etc.\n /[A-Za-z][a-z]{2,}/ // allow capitalized words at beginning of sentences\n );\n // looking like plain text, more likely to be a comment\n mode.contains.push(\n {\n // TODO: how to include \", (, ) without breaking grammars that use these for\n // comment delimiters?\n // begin: /[ ]+([()\"]?([A-Za-z'-]{3,}|is|a|I|so|us|[tT][oO]|at|if|in|it|on)[.]?[()\":]?([.][ ]|[ ]|\\))){3}/\n // ---\n\n // this tries to find sequences of 3 english words in a row (without any\n // \"programming\" type syntax) this gives us a strong signal that we've\n // TRULY found a comment - vs perhaps scanning with the wrong language.\n // It's possible to find something that LOOKS like the start of the\n // comment - but then if there is no readable text - good chance it is a\n // false match and not a comment.\n //\n // for a visual example please see:\n // https://github.com/highlightjs/highlight.js/issues/2827\n\n begin: concat(\n /[ ]+/, // necessary to prevent us gobbling up doctags like /* @author Bob Mcgill */\n '(',\n ENGLISH_WORD,\n /[.]?[:]?([.][ ]|[ ])/,\n '){3}') // look for 3 words in a row\n }\n );\n return mode;\n};\nconst C_LINE_COMMENT_MODE = COMMENT('//', '$');\nconst C_BLOCK_COMMENT_MODE = COMMENT('/\\\\*', '\\\\*/');\nconst HASH_COMMENT_MODE = COMMENT('#', '$');\nconst NUMBER_MODE = {\n scope: 'number',\n begin: NUMBER_RE,\n relevance: 0\n};\nconst C_NUMBER_MODE = {\n scope: 'number',\n begin: C_NUMBER_RE,\n relevance: 0\n};\nconst BINARY_NUMBER_MODE = {\n scope: 'number',\n begin: BINARY_NUMBER_RE,\n relevance: 0\n};\nconst REGEXP_MODE = {\n scope: \"regexp\",\n begin: /\\/(?=[^/\\n]*\\/)/,\n end: /\\/[gimuy]*/,\n contains: [\n BACKSLASH_ESCAPE,\n {\n begin: /\\[/,\n end: /\\]/,\n relevance: 0,\n contains: [BACKSLASH_ESCAPE]\n }\n ]\n};\nconst TITLE_MODE = {\n scope: 'title',\n begin: IDENT_RE,\n relevance: 0\n};\nconst UNDERSCORE_TITLE_MODE = {\n scope: 'title',\n begin: UNDERSCORE_IDENT_RE,\n relevance: 0\n};\nconst METHOD_GUARD = {\n // excludes method names from keyword processing\n begin: '\\\\.\\\\s*' + UNDERSCORE_IDENT_RE,\n relevance: 0\n};\n\n/**\n * Adds end same as begin mechanics to a mode\n *\n * Your mode must include at least a single () match group as that first match\n * group is what is used for comparison\n * @param {Partial} mode\n */\nconst END_SAME_AS_BEGIN = function(mode) {\n return Object.assign(mode,\n {\n /** @type {ModeCallback} */\n 'on:begin': (m, resp) => { resp.data._beginMatch = m[1]; },\n /** @type {ModeCallback} */\n 'on:end': (m, resp) => { if (resp.data._beginMatch !== m[1]) resp.ignoreMatch(); }\n });\n};\n\nvar MODES = /*#__PURE__*/Object.freeze({\n __proto__: null,\n APOS_STRING_MODE: APOS_STRING_MODE,\n BACKSLASH_ESCAPE: BACKSLASH_ESCAPE,\n BINARY_NUMBER_MODE: BINARY_NUMBER_MODE,\n BINARY_NUMBER_RE: BINARY_NUMBER_RE,\n COMMENT: COMMENT,\n C_BLOCK_COMMENT_MODE: C_BLOCK_COMMENT_MODE,\n C_LINE_COMMENT_MODE: C_LINE_COMMENT_MODE,\n C_NUMBER_MODE: C_NUMBER_MODE,\n C_NUMBER_RE: C_NUMBER_RE,\n END_SAME_AS_BEGIN: END_SAME_AS_BEGIN,\n HASH_COMMENT_MODE: HASH_COMMENT_MODE,\n IDENT_RE: IDENT_RE,\n MATCH_NOTHING_RE: MATCH_NOTHING_RE,\n METHOD_GUARD: METHOD_GUARD,\n NUMBER_MODE: NUMBER_MODE,\n NUMBER_RE: NUMBER_RE,\n PHRASAL_WORDS_MODE: PHRASAL_WORDS_MODE,\n QUOTE_STRING_MODE: QUOTE_STRING_MODE,\n REGEXP_MODE: REGEXP_MODE,\n RE_STARTERS_RE: RE_STARTERS_RE,\n SHEBANG: SHEBANG,\n TITLE_MODE: TITLE_MODE,\n UNDERSCORE_IDENT_RE: UNDERSCORE_IDENT_RE,\n UNDERSCORE_TITLE_MODE: UNDERSCORE_TITLE_MODE\n});\n\n/**\n@typedef {import('highlight.js').CallbackResponse} CallbackResponse\n@typedef {import('highlight.js').CompilerExt} CompilerExt\n*/\n\n// Grammar extensions / plugins\n// See: https://github.com/highlightjs/highlight.js/issues/2833\n\n// Grammar extensions allow \"syntactic sugar\" to be added to the grammar modes\n// without requiring any underlying changes to the compiler internals.\n\n// `compileMatch` being the perfect small example of now allowing a grammar\n// author to write `match` when they desire to match a single expression rather\n// than being forced to use `begin`. The extension then just moves `match` into\n// `begin` when it runs. Ie, no features have been added, but we've just made\n// the experience of writing (and reading grammars) a little bit nicer.\n\n// ------\n\n// TODO: We need negative look-behind support to do this properly\n/**\n * Skip a match if it has a preceding dot\n *\n * This is used for `beginKeywords` to prevent matching expressions such as\n * `bob.keyword.do()`. The mode compiler automatically wires this up as a\n * special _internal_ 'on:begin' callback for modes with `beginKeywords`\n * @param {RegExpMatchArray} match\n * @param {CallbackResponse} response\n */\nfunction skipIfHasPrecedingDot(match, response) {\n const before = match.input[match.index - 1];\n if (before === \".\") {\n response.ignoreMatch();\n }\n}\n\n/**\n *\n * @type {CompilerExt}\n */\nfunction scopeClassName(mode, _parent) {\n // eslint-disable-next-line no-undefined\n if (mode.className !== undefined) {\n mode.scope = mode.className;\n delete mode.className;\n }\n}\n\n/**\n * `beginKeywords` syntactic sugar\n * @type {CompilerExt}\n */\nfunction beginKeywords(mode, parent) {\n if (!parent) return;\n if (!mode.beginKeywords) return;\n\n // for languages with keywords that include non-word characters checking for\n // a word boundary is not sufficient, so instead we check for a word boundary\n // or whitespace - this does no harm in any case since our keyword engine\n // doesn't allow spaces in keywords anyways and we still check for the boundary\n // first\n mode.begin = '\\\\b(' + mode.beginKeywords.split(' ').join('|') + ')(?!\\\\.)(?=\\\\b|\\\\s)';\n mode.__beforeBegin = skipIfHasPrecedingDot;\n mode.keywords = mode.keywords || mode.beginKeywords;\n delete mode.beginKeywords;\n\n // prevents double relevance, the keywords themselves provide\n // relevance, the mode doesn't need to double it\n // eslint-disable-next-line no-undefined\n if (mode.relevance === undefined) mode.relevance = 0;\n}\n\n/**\n * Allow `illegal` to contain an array of illegal values\n * @type {CompilerExt}\n */\nfunction compileIllegal(mode, _parent) {\n if (!Array.isArray(mode.illegal)) return;\n\n mode.illegal = either(...mode.illegal);\n}\n\n/**\n * `match` to match a single expression for readability\n * @type {CompilerExt}\n */\nfunction compileMatch(mode, _parent) {\n if (!mode.match) return;\n if (mode.begin || mode.end) throw new Error(\"begin & end are not supported with match\");\n\n mode.begin = mode.match;\n delete mode.match;\n}\n\n/**\n * provides the default 1 relevance to all modes\n * @type {CompilerExt}\n */\nfunction compileRelevance(mode, _parent) {\n // eslint-disable-next-line no-undefined\n if (mode.relevance === undefined) mode.relevance = 1;\n}\n\n// allow beforeMatch to act as a \"qualifier\" for the match\n// the full match begin must be [beforeMatch][begin]\nconst beforeMatchExt = (mode, parent) => {\n if (!mode.beforeMatch) return;\n // starts conflicts with endsParent which we need to make sure the child\n // rule is not matched multiple times\n if (mode.starts) throw new Error(\"beforeMatch cannot be used with starts\");\n\n const originalMode = Object.assign({}, mode);\n Object.keys(mode).forEach((key) => { delete mode[key]; });\n\n mode.keywords = originalMode.keywords;\n mode.begin = concat(originalMode.beforeMatch, lookahead(originalMode.begin));\n mode.starts = {\n relevance: 0,\n contains: [\n Object.assign(originalMode, { endsParent: true })\n ]\n };\n mode.relevance = 0;\n\n delete originalMode.beforeMatch;\n};\n\n// keywords that should have no default relevance value\nconst COMMON_KEYWORDS = [\n 'of',\n 'and',\n 'for',\n 'in',\n 'not',\n 'or',\n 'if',\n 'then',\n 'parent', // common variable name\n 'list', // common variable name\n 'value' // common variable name\n];\n\nconst DEFAULT_KEYWORD_SCOPE = \"keyword\";\n\n/**\n * Given raw keywords from a language definition, compile them.\n *\n * @param {string | Record | Array} rawKeywords\n * @param {boolean} caseInsensitive\n */\nfunction compileKeywords(rawKeywords, caseInsensitive, scopeName = DEFAULT_KEYWORD_SCOPE) {\n /** @type {import(\"highlight.js/private\").KeywordDict} */\n const compiledKeywords = Object.create(null);\n\n // input can be a string of keywords, an array of keywords, or a object with\n // named keys representing scopeName (which can then point to a string or array)\n if (typeof rawKeywords === 'string') {\n compileList(scopeName, rawKeywords.split(\" \"));\n } else if (Array.isArray(rawKeywords)) {\n compileList(scopeName, rawKeywords);\n } else {\n Object.keys(rawKeywords).forEach(function(scopeName) {\n // collapse all our objects back into the parent object\n Object.assign(\n compiledKeywords,\n compileKeywords(rawKeywords[scopeName], caseInsensitive, scopeName)\n );\n });\n }\n return compiledKeywords;\n\n // ---\n\n /**\n * Compiles an individual list of keywords\n *\n * Ex: \"for if when while|5\"\n *\n * @param {string} scopeName\n * @param {Array} keywordList\n */\n function compileList(scopeName, keywordList) {\n if (caseInsensitive) {\n keywordList = keywordList.map(x => x.toLowerCase());\n }\n keywordList.forEach(function(keyword) {\n const pair = keyword.split('|');\n compiledKeywords[pair[0]] = [scopeName, scoreForKeyword(pair[0], pair[1])];\n });\n }\n}\n\n/**\n * Returns the proper score for a given keyword\n *\n * Also takes into account comment keywords, which will be scored 0 UNLESS\n * another score has been manually assigned.\n * @param {string} keyword\n * @param {string} [providedScore]\n */\nfunction scoreForKeyword(keyword, providedScore) {\n // manual scores always win over common keywords\n // so you can force a score of 1 if you really insist\n if (providedScore) {\n return Number(providedScore);\n }\n\n return commonKeyword(keyword) ? 0 : 1;\n}\n\n/**\n * Determines if a given keyword is common or not\n *\n * @param {string} keyword */\nfunction commonKeyword(keyword) {\n return COMMON_KEYWORDS.includes(keyword.toLowerCase());\n}\n\n/*\n\nFor the reasoning behind this please see:\nhttps://github.com/highlightjs/highlight.js/issues/2880#issuecomment-747275419\n\n*/\n\n/**\n * @type {Record}\n */\nconst seenDeprecations = {};\n\n/**\n * @param {string} message\n */\nconst error = (message) => {\n console.error(message);\n};\n\n/**\n * @param {string} message\n * @param {any} args\n */\nconst warn = (message, ...args) => {\n console.log(`WARN: ${message}`, ...args);\n};\n\n/**\n * @param {string} version\n * @param {string} message\n */\nconst deprecated = (version, message) => {\n if (seenDeprecations[`${version}/${message}`]) return;\n\n console.log(`Deprecated as of ${version}. ${message}`);\n seenDeprecations[`${version}/${message}`] = true;\n};\n\n/* eslint-disable no-throw-literal */\n\n/**\n@typedef {import('highlight.js').CompiledMode} CompiledMode\n*/\n\nconst MultiClassError = new Error();\n\n/**\n * Renumbers labeled scope names to account for additional inner match\n * groups that otherwise would break everything.\n *\n * Lets say we 3 match scopes:\n *\n * { 1 => ..., 2 => ..., 3 => ... }\n *\n * So what we need is a clean match like this:\n *\n * (a)(b)(c) => [ \"a\", \"b\", \"c\" ]\n *\n * But this falls apart with inner match groups:\n *\n * (a)(((b)))(c) => [\"a\", \"b\", \"b\", \"b\", \"c\" ]\n *\n * Our scopes are now \"out of alignment\" and we're repeating `b` 3 times.\n * What needs to happen is the numbers are remapped:\n *\n * { 1 => ..., 2 => ..., 5 => ... }\n *\n * We also need to know that the ONLY groups that should be output\n * are 1, 2, and 5. This function handles this behavior.\n *\n * @param {CompiledMode} mode\n * @param {Array} regexes\n * @param {{key: \"beginScope\"|\"endScope\"}} opts\n */\nfunction remapScopeNames(mode, regexes, { key }) {\n let offset = 0;\n const scopeNames = mode[key];\n /** @type Record */\n const emit = {};\n /** @type Record */\n const positions = {};\n\n for (let i = 1; i <= regexes.length; i++) {\n positions[i + offset] = scopeNames[i];\n emit[i + offset] = true;\n offset += countMatchGroups(regexes[i - 1]);\n }\n // we use _emit to keep track of which match groups are \"top-level\" to avoid double\n // output from inside match groups\n mode[key] = positions;\n mode[key]._emit = emit;\n mode[key]._multi = true;\n}\n\n/**\n * @param {CompiledMode} mode\n */\nfunction beginMultiClass(mode) {\n if (!Array.isArray(mode.begin)) return;\n\n if (mode.skip || mode.excludeBegin || mode.returnBegin) {\n error(\"skip, excludeBegin, returnBegin not compatible with beginScope: {}\");\n throw MultiClassError;\n }\n\n if (typeof mode.beginScope !== \"object\" || mode.beginScope === null) {\n error(\"beginScope must be object\");\n throw MultiClassError;\n }\n\n remapScopeNames(mode, mode.begin, { key: \"beginScope\" });\n mode.begin = _rewriteBackreferences(mode.begin, { joinWith: \"\" });\n}\n\n/**\n * @param {CompiledMode} mode\n */\nfunction endMultiClass(mode) {\n if (!Array.isArray(mode.end)) return;\n\n if (mode.skip || mode.excludeEnd || mode.returnEnd) {\n error(\"skip, excludeEnd, returnEnd not compatible with endScope: {}\");\n throw MultiClassError;\n }\n\n if (typeof mode.endScope !== \"object\" || mode.endScope === null) {\n error(\"endScope must be object\");\n throw MultiClassError;\n }\n\n remapScopeNames(mode, mode.end, { key: \"endScope\" });\n mode.end = _rewriteBackreferences(mode.end, { joinWith: \"\" });\n}\n\n/**\n * this exists only to allow `scope: {}` to be used beside `match:`\n * Otherwise `beginScope` would necessary and that would look weird\n\n {\n match: [ /def/, /\\w+/ ]\n scope: { 1: \"keyword\" , 2: \"title\" }\n }\n\n * @param {CompiledMode} mode\n */\nfunction scopeSugar(mode) {\n if (mode.scope && typeof mode.scope === \"object\" && mode.scope !== null) {\n mode.beginScope = mode.scope;\n delete mode.scope;\n }\n}\n\n/**\n * @param {CompiledMode} mode\n */\nfunction MultiClass(mode) {\n scopeSugar(mode);\n\n if (typeof mode.beginScope === \"string\") {\n mode.beginScope = { _wrap: mode.beginScope };\n }\n if (typeof mode.endScope === \"string\") {\n mode.endScope = { _wrap: mode.endScope };\n }\n\n beginMultiClass(mode);\n endMultiClass(mode);\n}\n\n/**\n@typedef {import('highlight.js').Mode} Mode\n@typedef {import('highlight.js').CompiledMode} CompiledMode\n@typedef {import('highlight.js').Language} Language\n@typedef {import('highlight.js').HLJSPlugin} HLJSPlugin\n@typedef {import('highlight.js').CompiledLanguage} CompiledLanguage\n*/\n\n// compilation\n\n/**\n * Compiles a language definition result\n *\n * Given the raw result of a language definition (Language), compiles this so\n * that it is ready for highlighting code.\n * @param {Language} language\n * @returns {CompiledLanguage}\n */\nfunction compileLanguage(language) {\n /**\n * Builds a regex with the case sensitivity of the current language\n *\n * @param {RegExp | string} value\n * @param {boolean} [global]\n */\n function langRe(value, global) {\n return new RegExp(\n source(value),\n 'm'\n + (language.case_insensitive ? 'i' : '')\n + (language.unicodeRegex ? 'u' : '')\n + (global ? 'g' : '')\n );\n }\n\n /**\n Stores multiple regular expressions and allows you to quickly search for\n them all in a string simultaneously - returning the first match. It does\n this by creating a huge (a|b|c) regex - each individual item wrapped with ()\n and joined by `|` - using match groups to track position. When a match is\n found checking which position in the array has content allows us to figure\n out which of the original regexes / match groups triggered the match.\n\n The match object itself (the result of `Regex.exec`) is returned but also\n enhanced by merging in any meta-data that was registered with the regex.\n This is how we keep track of which mode matched, and what type of rule\n (`illegal`, `begin`, end, etc).\n */\n class MultiRegex {\n constructor() {\n this.matchIndexes = {};\n // @ts-ignore\n this.regexes = [];\n this.matchAt = 1;\n this.position = 0;\n }\n\n // @ts-ignore\n addRule(re, opts) {\n opts.position = this.position++;\n // @ts-ignore\n this.matchIndexes[this.matchAt] = opts;\n this.regexes.push([opts, re]);\n this.matchAt += countMatchGroups(re) + 1;\n }\n\n compile() {\n if (this.regexes.length === 0) {\n // avoids the need to check length every time exec is called\n // @ts-ignore\n this.exec = () => null;\n }\n const terminators = this.regexes.map(el => el[1]);\n this.matcherRe = langRe(_rewriteBackreferences(terminators, { joinWith: '|' }), true);\n this.lastIndex = 0;\n }\n\n /** @param {string} s */\n exec(s) {\n this.matcherRe.lastIndex = this.lastIndex;\n const match = this.matcherRe.exec(s);\n if (!match) { return null; }\n\n // eslint-disable-next-line no-undefined\n const i = match.findIndex((el, i) => i > 0 && el !== undefined);\n // @ts-ignore\n const matchData = this.matchIndexes[i];\n // trim off any earlier non-relevant match groups (ie, the other regex\n // match groups that make up the multi-matcher)\n match.splice(0, i);\n\n return Object.assign(match, matchData);\n }\n }\n\n /*\n Created to solve the key deficiently with MultiRegex - there is no way to\n test for multiple matches at a single location. Why would we need to do\n that? In the future a more dynamic engine will allow certain matches to be\n ignored. An example: if we matched say the 3rd regex in a large group but\n decided to ignore it - we'd need to started testing again at the 4th\n regex... but MultiRegex itself gives us no real way to do that.\n\n So what this class creates MultiRegexs on the fly for whatever search\n position they are needed.\n\n NOTE: These additional MultiRegex objects are created dynamically. For most\n grammars most of the time we will never actually need anything more than the\n first MultiRegex - so this shouldn't have too much overhead.\n\n Say this is our search group, and we match regex3, but wish to ignore it.\n\n regex1 | regex2 | regex3 | regex4 | regex5 ' ie, startAt = 0\n\n What we need is a new MultiRegex that only includes the remaining\n possibilities:\n\n regex4 | regex5 ' ie, startAt = 3\n\n This class wraps all that complexity up in a simple API... `startAt` decides\n where in the array of expressions to start doing the matching. It\n auto-increments, so if a match is found at position 2, then startAt will be\n set to 3. If the end is reached startAt will return to 0.\n\n MOST of the time the parser will be setting startAt manually to 0.\n */\n class ResumableMultiRegex {\n constructor() {\n // @ts-ignore\n this.rules = [];\n // @ts-ignore\n this.multiRegexes = [];\n this.count = 0;\n\n this.lastIndex = 0;\n this.regexIndex = 0;\n }\n\n // @ts-ignore\n getMatcher(index) {\n if (this.multiRegexes[index]) return this.multiRegexes[index];\n\n const matcher = new MultiRegex();\n this.rules.slice(index).forEach(([re, opts]) => matcher.addRule(re, opts));\n matcher.compile();\n this.multiRegexes[index] = matcher;\n return matcher;\n }\n\n resumingScanAtSamePosition() {\n return this.regexIndex !== 0;\n }\n\n considerAll() {\n this.regexIndex = 0;\n }\n\n // @ts-ignore\n addRule(re, opts) {\n this.rules.push([re, opts]);\n if (opts.type === \"begin\") this.count++;\n }\n\n /** @param {string} s */\n exec(s) {\n const m = this.getMatcher(this.regexIndex);\n m.lastIndex = this.lastIndex;\n let result = m.exec(s);\n\n // The following is because we have no easy way to say \"resume scanning at the\n // existing position but also skip the current rule ONLY\". What happens is\n // all prior rules are also skipped which can result in matching the wrong\n // thing. Example of matching \"booger\":\n\n // our matcher is [string, \"booger\", number]\n //\n // ....booger....\n\n // if \"booger\" is ignored then we'd really need a regex to scan from the\n // SAME position for only: [string, number] but ignoring \"booger\" (if it\n // was the first match), a simple resume would scan ahead who knows how\n // far looking only for \"number\", ignoring potential string matches (or\n // future \"booger\" matches that might be valid.)\n\n // So what we do: We execute two matchers, one resuming at the same\n // position, but the second full matcher starting at the position after:\n\n // /--- resume first regex match here (for [number])\n // |/---- full match here for [string, \"booger\", number]\n // vv\n // ....booger....\n\n // Which ever results in a match first is then used. So this 3-4 step\n // process essentially allows us to say \"match at this position, excluding\n // a prior rule that was ignored\".\n //\n // 1. Match \"booger\" first, ignore. Also proves that [string] does non match.\n // 2. Resume matching for [number]\n // 3. Match at index + 1 for [string, \"booger\", number]\n // 4. If #2 and #3 result in matches, which came first?\n if (this.resumingScanAtSamePosition()) {\n if (result && result.index === this.lastIndex) ; else { // use the second matcher result\n const m2 = this.getMatcher(0);\n m2.lastIndex = this.lastIndex + 1;\n result = m2.exec(s);\n }\n }\n\n if (result) {\n this.regexIndex += result.position + 1;\n if (this.regexIndex === this.count) {\n // wrap-around to considering all matches again\n this.considerAll();\n }\n }\n\n return result;\n }\n }\n\n /**\n * Given a mode, builds a huge ResumableMultiRegex that can be used to walk\n * the content and find matches.\n *\n * @param {CompiledMode} mode\n * @returns {ResumableMultiRegex}\n */\n function buildModeRegex(mode) {\n const mm = new ResumableMultiRegex();\n\n mode.contains.forEach(term => mm.addRule(term.begin, { rule: term, type: \"begin\" }));\n\n if (mode.terminatorEnd) {\n mm.addRule(mode.terminatorEnd, { type: \"end\" });\n }\n if (mode.illegal) {\n mm.addRule(mode.illegal, { type: \"illegal\" });\n }\n\n return mm;\n }\n\n /** skip vs abort vs ignore\n *\n * @skip - The mode is still entered and exited normally (and contains rules apply),\n * but all content is held and added to the parent buffer rather than being\n * output when the mode ends. Mostly used with `sublanguage` to build up\n * a single large buffer than can be parsed by sublanguage.\n *\n * - The mode begin ands ends normally.\n * - Content matched is added to the parent mode buffer.\n * - The parser cursor is moved forward normally.\n *\n * @abort - A hack placeholder until we have ignore. Aborts the mode (as if it\n * never matched) but DOES NOT continue to match subsequent `contains`\n * modes. Abort is bad/suboptimal because it can result in modes\n * farther down not getting applied because an earlier rule eats the\n * content but then aborts.\n *\n * - The mode does not begin.\n * - Content matched by `begin` is added to the mode buffer.\n * - The parser cursor is moved forward accordingly.\n *\n * @ignore - Ignores the mode (as if it never matched) and continues to match any\n * subsequent `contains` modes. Ignore isn't technically possible with\n * the current parser implementation.\n *\n * - The mode does not begin.\n * - Content matched by `begin` is ignored.\n * - The parser cursor is not moved forward.\n */\n\n /**\n * Compiles an individual mode\n *\n * This can raise an error if the mode contains certain detectable known logic\n * issues.\n * @param {Mode} mode\n * @param {CompiledMode | null} [parent]\n * @returns {CompiledMode | never}\n */\n function compileMode(mode, parent) {\n const cmode = /** @type CompiledMode */ (mode);\n if (mode.isCompiled) return cmode;\n\n [\n scopeClassName,\n // do this early so compiler extensions generally don't have to worry about\n // the distinction between match/begin\n compileMatch,\n MultiClass,\n beforeMatchExt\n ].forEach(ext => ext(mode, parent));\n\n language.compilerExtensions.forEach(ext => ext(mode, parent));\n\n // __beforeBegin is considered private API, internal use only\n mode.__beforeBegin = null;\n\n [\n beginKeywords,\n // do this later so compiler extensions that come earlier have access to the\n // raw array if they wanted to perhaps manipulate it, etc.\n compileIllegal,\n // default to 1 relevance if not specified\n compileRelevance\n ].forEach(ext => ext(mode, parent));\n\n mode.isCompiled = true;\n\n let keywordPattern = null;\n if (typeof mode.keywords === \"object\" && mode.keywords.$pattern) {\n // we need a copy because keywords might be compiled multiple times\n // so we can't go deleting $pattern from the original on the first\n // pass\n mode.keywords = Object.assign({}, mode.keywords);\n keywordPattern = mode.keywords.$pattern;\n delete mode.keywords.$pattern;\n }\n keywordPattern = keywordPattern || /\\w+/;\n\n if (mode.keywords) {\n mode.keywords = compileKeywords(mode.keywords, language.case_insensitive);\n }\n\n cmode.keywordPatternRe = langRe(keywordPattern, true);\n\n if (parent) {\n if (!mode.begin) mode.begin = /\\B|\\b/;\n cmode.beginRe = langRe(cmode.begin);\n if (!mode.end && !mode.endsWithParent) mode.end = /\\B|\\b/;\n if (mode.end) cmode.endRe = langRe(cmode.end);\n cmode.terminatorEnd = source(cmode.end) || '';\n if (mode.endsWithParent && parent.terminatorEnd) {\n cmode.terminatorEnd += (mode.end ? '|' : '') + parent.terminatorEnd;\n }\n }\n if (mode.illegal) cmode.illegalRe = langRe(/** @type {RegExp | string} */ (mode.illegal));\n if (!mode.contains) mode.contains = [];\n\n mode.contains = [].concat(...mode.contains.map(function(c) {\n return expandOrCloneMode(c === 'self' ? mode : c);\n }));\n mode.contains.forEach(function(c) { compileMode(/** @type Mode */ (c), cmode); });\n\n if (mode.starts) {\n compileMode(mode.starts, parent);\n }\n\n cmode.matcher = buildModeRegex(cmode);\n return cmode;\n }\n\n if (!language.compilerExtensions) language.compilerExtensions = [];\n\n // self is not valid at the top-level\n if (language.contains && language.contains.includes('self')) {\n throw new Error(\"ERR: contains `self` is not supported at the top-level of a language. See documentation.\");\n }\n\n // we need a null object, which inherit will guarantee\n language.classNameAliases = inherit$1(language.classNameAliases || {});\n\n return compileMode(/** @type Mode */ (language));\n}\n\n/**\n * Determines if a mode has a dependency on it's parent or not\n *\n * If a mode does have a parent dependency then often we need to clone it if\n * it's used in multiple places so that each copy points to the correct parent,\n * where-as modes without a parent can often safely be re-used at the bottom of\n * a mode chain.\n *\n * @param {Mode | null} mode\n * @returns {boolean} - is there a dependency on the parent?\n * */\nfunction dependencyOnParent(mode) {\n if (!mode) return false;\n\n return mode.endsWithParent || dependencyOnParent(mode.starts);\n}\n\n/**\n * Expands a mode or clones it if necessary\n *\n * This is necessary for modes with parental dependenceis (see notes on\n * `dependencyOnParent`) and for nodes that have `variants` - which must then be\n * exploded into their own individual modes at compile time.\n *\n * @param {Mode} mode\n * @returns {Mode | Mode[]}\n * */\nfunction expandOrCloneMode(mode) {\n if (mode.variants && !mode.cachedVariants) {\n mode.cachedVariants = mode.variants.map(function(variant) {\n return inherit$1(mode, { variants: null }, variant);\n });\n }\n\n // EXPAND\n // if we have variants then essentially \"replace\" the mode with the variants\n // this happens in compileMode, where this function is called from\n if (mode.cachedVariants) {\n return mode.cachedVariants;\n }\n\n // CLONE\n // if we have dependencies on parents then we need a unique\n // instance of ourselves, so we can be reused with many\n // different parents without issue\n if (dependencyOnParent(mode)) {\n return inherit$1(mode, { starts: mode.starts ? inherit$1(mode.starts) : null });\n }\n\n if (Object.isFrozen(mode)) {\n return inherit$1(mode);\n }\n\n // no special dependency issues, just return ourselves\n return mode;\n}\n\nvar version = \"11.11.1\";\n\nclass HTMLInjectionError extends Error {\n constructor(reason, html) {\n super(reason);\n this.name = \"HTMLInjectionError\";\n this.html = html;\n }\n}\n\n/*\nSyntax highlighting with language autodetection.\nhttps://highlightjs.org/\n*/\n\n\n\n/**\n@typedef {import('highlight.js').Mode} Mode\n@typedef {import('highlight.js').CompiledMode} CompiledMode\n@typedef {import('highlight.js').CompiledScope} CompiledScope\n@typedef {import('highlight.js').Language} Language\n@typedef {import('highlight.js').HLJSApi} HLJSApi\n@typedef {import('highlight.js').HLJSPlugin} HLJSPlugin\n@typedef {import('highlight.js').PluginEvent} PluginEvent\n@typedef {import('highlight.js').HLJSOptions} HLJSOptions\n@typedef {import('highlight.js').LanguageFn} LanguageFn\n@typedef {import('highlight.js').HighlightedHTMLElement} HighlightedHTMLElement\n@typedef {import('highlight.js').BeforeHighlightContext} BeforeHighlightContext\n@typedef {import('highlight.js/private').MatchType} MatchType\n@typedef {import('highlight.js/private').KeywordData} KeywordData\n@typedef {import('highlight.js/private').EnhancedMatch} EnhancedMatch\n@typedef {import('highlight.js/private').AnnotatedError} AnnotatedError\n@typedef {import('highlight.js').AutoHighlightResult} AutoHighlightResult\n@typedef {import('highlight.js').HighlightOptions} HighlightOptions\n@typedef {import('highlight.js').HighlightResult} HighlightResult\n*/\n\n\nconst escape = escapeHTML;\nconst inherit = inherit$1;\nconst NO_MATCH = Symbol(\"nomatch\");\nconst MAX_KEYWORD_HITS = 7;\n\n/**\n * @param {any} hljs - object that is extended (legacy)\n * @returns {HLJSApi}\n */\nconst HLJS = function(hljs) {\n // Global internal variables used within the highlight.js library.\n /** @type {Record} */\n const languages = Object.create(null);\n /** @type {Record} */\n const aliases = Object.create(null);\n /** @type {HLJSPlugin[]} */\n const plugins = [];\n\n // safe/production mode - swallows more errors, tries to keep running\n // even if a single syntax or parse hits a fatal error\n let SAFE_MODE = true;\n const LANGUAGE_NOT_FOUND = \"Could not find the language '{}', did you forget to load/include a language module?\";\n /** @type {Language} */\n const PLAINTEXT_LANGUAGE = { disableAutodetect: true, name: 'Plain text', contains: [] };\n\n // Global options used when within external APIs. This is modified when\n // calling the `hljs.configure` function.\n /** @type HLJSOptions */\n let options = {\n ignoreUnescapedHTML: false,\n throwUnescapedHTML: false,\n noHighlightRe: /^(no-?highlight)$/i,\n languageDetectRe: /\\blang(?:uage)?-([\\w-]+)\\b/i,\n classPrefix: 'hljs-',\n cssSelector: 'pre code',\n languages: null,\n // beta configuration options, subject to change, welcome to discuss\n // https://github.com/highlightjs/highlight.js/issues/1086\n __emitter: TokenTreeEmitter\n };\n\n /* Utility functions */\n\n /**\n * Tests a language name to see if highlighting should be skipped\n * @param {string} languageName\n */\n function shouldNotHighlight(languageName) {\n return options.noHighlightRe.test(languageName);\n }\n\n /**\n * @param {HighlightedHTMLElement} block - the HTML element to determine language for\n */\n function blockLanguage(block) {\n let classes = block.className + ' ';\n\n classes += block.parentNode ? block.parentNode.className : '';\n\n // language-* takes precedence over non-prefixed class names.\n const match = options.languageDetectRe.exec(classes);\n if (match) {\n const language = getLanguage(match[1]);\n if (!language) {\n warn(LANGUAGE_NOT_FOUND.replace(\"{}\", match[1]));\n warn(\"Falling back to no-highlight mode for this block.\", block);\n }\n return language ? match[1] : 'no-highlight';\n }\n\n return classes\n .split(/\\s+/)\n .find((_class) => shouldNotHighlight(_class) || getLanguage(_class));\n }\n\n /**\n * Core highlighting function.\n *\n * OLD API\n * highlight(lang, code, ignoreIllegals, continuation)\n *\n * NEW API\n * highlight(code, {lang, ignoreIllegals})\n *\n * @param {string} codeOrLanguageName - the language to use for highlighting\n * @param {string | HighlightOptions} optionsOrCode - the code to highlight\n * @param {boolean} [ignoreIllegals] - whether to ignore illegal matches, default is to bail\n *\n * @returns {HighlightResult} Result - an object that represents the result\n * @property {string} language - the language name\n * @property {number} relevance - the relevance score\n * @property {string} value - the highlighted HTML code\n * @property {string} code - the original raw code\n * @property {CompiledMode} top - top of the current mode stack\n * @property {boolean} illegal - indicates whether any illegal matches were found\n */\n function highlight(codeOrLanguageName, optionsOrCode, ignoreIllegals) {\n let code = \"\";\n let languageName = \"\";\n if (typeof optionsOrCode === \"object\") {\n code = codeOrLanguageName;\n ignoreIllegals = optionsOrCode.ignoreIllegals;\n languageName = optionsOrCode.language;\n } else {\n // old API\n deprecated(\"10.7.0\", \"highlight(lang, code, ...args) has been deprecated.\");\n deprecated(\"10.7.0\", \"Please use highlight(code, options) instead.\\nhttps://github.com/highlightjs/highlight.js/issues/2277\");\n languageName = codeOrLanguageName;\n code = optionsOrCode;\n }\n\n // https://github.com/highlightjs/highlight.js/issues/3149\n // eslint-disable-next-line no-undefined\n if (ignoreIllegals === undefined) { ignoreIllegals = true; }\n\n /** @type {BeforeHighlightContext} */\n const context = {\n code,\n language: languageName\n };\n // the plugin can change the desired language or the code to be highlighted\n // just be changing the object it was passed\n fire(\"before:highlight\", context);\n\n // a before plugin can usurp the result completely by providing it's own\n // in which case we don't even need to call highlight\n const result = context.result\n ? context.result\n : _highlight(context.language, context.code, ignoreIllegals);\n\n result.code = context.code;\n // the plugin can change anything in result to suite it\n fire(\"after:highlight\", result);\n\n return result;\n }\n\n /**\n * private highlight that's used internally and does not fire callbacks\n *\n * @param {string} languageName - the language to use for highlighting\n * @param {string} codeToHighlight - the code to highlight\n * @param {boolean?} [ignoreIllegals] - whether to ignore illegal matches, default is to bail\n * @param {CompiledMode?} [continuation] - current continuation mode, if any\n * @returns {HighlightResult} - result of the highlight operation\n */\n function _highlight(languageName, codeToHighlight, ignoreIllegals, continuation) {\n const keywordHits = Object.create(null);\n\n /**\n * Return keyword data if a match is a keyword\n * @param {CompiledMode} mode - current mode\n * @param {string} matchText - the textual match\n * @returns {KeywordData | false}\n */\n function keywordData(mode, matchText) {\n return mode.keywords[matchText];\n }\n\n function processKeywords() {\n if (!top.keywords) {\n emitter.addText(modeBuffer);\n return;\n }\n\n let lastIndex = 0;\n top.keywordPatternRe.lastIndex = 0;\n let match = top.keywordPatternRe.exec(modeBuffer);\n let buf = \"\";\n\n while (match) {\n buf += modeBuffer.substring(lastIndex, match.index);\n const word = language.case_insensitive ? match[0].toLowerCase() : match[0];\n const data = keywordData(top, word);\n if (data) {\n const [kind, keywordRelevance] = data;\n emitter.addText(buf);\n buf = \"\";\n\n keywordHits[word] = (keywordHits[word] || 0) + 1;\n if (keywordHits[word] <= MAX_KEYWORD_HITS) relevance += keywordRelevance;\n if (kind.startsWith(\"_\")) {\n // _ implied for relevance only, do not highlight\n // by applying a class name\n buf += match[0];\n } else {\n const cssClass = language.classNameAliases[kind] || kind;\n emitKeyword(match[0], cssClass);\n }\n } else {\n buf += match[0];\n }\n lastIndex = top.keywordPatternRe.lastIndex;\n match = top.keywordPatternRe.exec(modeBuffer);\n }\n buf += modeBuffer.substring(lastIndex);\n emitter.addText(buf);\n }\n\n function processSubLanguage() {\n if (modeBuffer === \"\") return;\n /** @type HighlightResult */\n let result = null;\n\n if (typeof top.subLanguage === 'string') {\n if (!languages[top.subLanguage]) {\n emitter.addText(modeBuffer);\n return;\n }\n result = _highlight(top.subLanguage, modeBuffer, true, continuations[top.subLanguage]);\n continuations[top.subLanguage] = /** @type {CompiledMode} */ (result._top);\n } else {\n result = highlightAuto(modeBuffer, top.subLanguage.length ? top.subLanguage : null);\n }\n\n // Counting embedded language score towards the host language may be disabled\n // with zeroing the containing mode relevance. Use case in point is Markdown that\n // allows XML everywhere and makes every XML snippet to have a much larger Markdown\n // score.\n if (top.relevance > 0) {\n relevance += result.relevance;\n }\n emitter.__addSublanguage(result._emitter, result.language);\n }\n\n function processBuffer() {\n if (top.subLanguage != null) {\n processSubLanguage();\n } else {\n processKeywords();\n }\n modeBuffer = '';\n }\n\n /**\n * @param {string} text\n * @param {string} scope\n */\n function emitKeyword(keyword, scope) {\n if (keyword === \"\") return;\n\n emitter.startScope(scope);\n emitter.addText(keyword);\n emitter.endScope();\n }\n\n /**\n * @param {CompiledScope} scope\n * @param {RegExpMatchArray} match\n */\n function emitMultiClass(scope, match) {\n let i = 1;\n const max = match.length - 1;\n while (i <= max) {\n if (!scope._emit[i]) { i++; continue; }\n const klass = language.classNameAliases[scope[i]] || scope[i];\n const text = match[i];\n if (klass) {\n emitKeyword(text, klass);\n } else {\n modeBuffer = text;\n processKeywords();\n modeBuffer = \"\";\n }\n i++;\n }\n }\n\n /**\n * @param {CompiledMode} mode - new mode to start\n * @param {RegExpMatchArray} match\n */\n function startNewMode(mode, match) {\n if (mode.scope && typeof mode.scope === \"string\") {\n emitter.openNode(language.classNameAliases[mode.scope] || mode.scope);\n }\n if (mode.beginScope) {\n // beginScope just wraps the begin match itself in a scope\n if (mode.beginScope._wrap) {\n emitKeyword(modeBuffer, language.classNameAliases[mode.beginScope._wrap] || mode.beginScope._wrap);\n modeBuffer = \"\";\n } else if (mode.beginScope._multi) {\n // at this point modeBuffer should just be the match\n emitMultiClass(mode.beginScope, match);\n modeBuffer = \"\";\n }\n }\n\n top = Object.create(mode, { parent: { value: top } });\n return top;\n }\n\n /**\n * @param {CompiledMode } mode - the mode to potentially end\n * @param {RegExpMatchArray} match - the latest match\n * @param {string} matchPlusRemainder - match plus remainder of content\n * @returns {CompiledMode | void} - the next mode, or if void continue on in current mode\n */\n function endOfMode(mode, match, matchPlusRemainder) {\n let matched = startsWith(mode.endRe, matchPlusRemainder);\n\n if (matched) {\n if (mode[\"on:end\"]) {\n const resp = new Response(mode);\n mode[\"on:end\"](match, resp);\n if (resp.isMatchIgnored) matched = false;\n }\n\n if (matched) {\n while (mode.endsParent && mode.parent) {\n mode = mode.parent;\n }\n return mode;\n }\n }\n // even if on:end fires an `ignore` it's still possible\n // that we might trigger the end node because of a parent mode\n if (mode.endsWithParent) {\n return endOfMode(mode.parent, match, matchPlusRemainder);\n }\n }\n\n /**\n * Handle matching but then ignoring a sequence of text\n *\n * @param {string} lexeme - string containing full match text\n */\n function doIgnore(lexeme) {\n if (top.matcher.regexIndex === 0) {\n // no more regexes to potentially match here, so we move the cursor forward one\n // space\n modeBuffer += lexeme[0];\n return 1;\n } else {\n // no need to move the cursor, we still have additional regexes to try and\n // match at this very spot\n resumeScanAtSamePosition = true;\n return 0;\n }\n }\n\n /**\n * Handle the start of a new potential mode match\n *\n * @param {EnhancedMatch} match - the current match\n * @returns {number} how far to advance the parse cursor\n */\n function doBeginMatch(match) {\n const lexeme = match[0];\n const newMode = match.rule;\n\n const resp = new Response(newMode);\n // first internal before callbacks, then the public ones\n const beforeCallbacks = [newMode.__beforeBegin, newMode[\"on:begin\"]];\n for (const cb of beforeCallbacks) {\n if (!cb) continue;\n cb(match, resp);\n if (resp.isMatchIgnored) return doIgnore(lexeme);\n }\n\n if (newMode.skip) {\n modeBuffer += lexeme;\n } else {\n if (newMode.excludeBegin) {\n modeBuffer += lexeme;\n }\n processBuffer();\n if (!newMode.returnBegin && !newMode.excludeBegin) {\n modeBuffer = lexeme;\n }\n }\n startNewMode(newMode, match);\n return newMode.returnBegin ? 0 : lexeme.length;\n }\n\n /**\n * Handle the potential end of mode\n *\n * @param {RegExpMatchArray} match - the current match\n */\n function doEndMatch(match) {\n const lexeme = match[0];\n const matchPlusRemainder = codeToHighlight.substring(match.index);\n\n const endMode = endOfMode(top, match, matchPlusRemainder);\n if (!endMode) { return NO_MATCH; }\n\n const origin = top;\n if (top.endScope && top.endScope._wrap) {\n processBuffer();\n emitKeyword(lexeme, top.endScope._wrap);\n } else if (top.endScope && top.endScope._multi) {\n processBuffer();\n emitMultiClass(top.endScope, match);\n } else if (origin.skip) {\n modeBuffer += lexeme;\n } else {\n if (!(origin.returnEnd || origin.excludeEnd)) {\n modeBuffer += lexeme;\n }\n processBuffer();\n if (origin.excludeEnd) {\n modeBuffer = lexeme;\n }\n }\n do {\n if (top.scope) {\n emitter.closeNode();\n }\n if (!top.skip && !top.subLanguage) {\n relevance += top.relevance;\n }\n top = top.parent;\n } while (top !== endMode.parent);\n if (endMode.starts) {\n startNewMode(endMode.starts, match);\n }\n return origin.returnEnd ? 0 : lexeme.length;\n }\n\n function processContinuations() {\n const list = [];\n for (let current = top; current !== language; current = current.parent) {\n if (current.scope) {\n list.unshift(current.scope);\n }\n }\n list.forEach(item => emitter.openNode(item));\n }\n\n /** @type {{type?: MatchType, index?: number, rule?: Mode}}} */\n let lastMatch = {};\n\n /**\n * Process an individual match\n *\n * @param {string} textBeforeMatch - text preceding the match (since the last match)\n * @param {EnhancedMatch} [match] - the match itself\n */\n function processLexeme(textBeforeMatch, match) {\n const lexeme = match && match[0];\n\n // add non-matched text to the current mode buffer\n modeBuffer += textBeforeMatch;\n\n if (lexeme == null) {\n processBuffer();\n return 0;\n }\n\n // we've found a 0 width match and we're stuck, so we need to advance\n // this happens when we have badly behaved rules that have optional matchers to the degree that\n // sometimes they can end up matching nothing at all\n // Ref: https://github.com/highlightjs/highlight.js/issues/2140\n if (lastMatch.type === \"begin\" && match.type === \"end\" && lastMatch.index === match.index && lexeme === \"\") {\n // spit the \"skipped\" character that our regex choked on back into the output sequence\n modeBuffer += codeToHighlight.slice(match.index, match.index + 1);\n if (!SAFE_MODE) {\n /** @type {AnnotatedError} */\n const err = new Error(`0 width match regex (${languageName})`);\n err.languageName = languageName;\n err.badRule = lastMatch.rule;\n throw err;\n }\n return 1;\n }\n lastMatch = match;\n\n if (match.type === \"begin\") {\n return doBeginMatch(match);\n } else if (match.type === \"illegal\" && !ignoreIllegals) {\n // illegal match, we do not continue processing\n /** @type {AnnotatedError} */\n const err = new Error('Illegal lexeme \"' + lexeme + '\" for mode \"' + (top.scope || '') + '\"');\n err.mode = top;\n throw err;\n } else if (match.type === \"end\") {\n const processed = doEndMatch(match);\n if (processed !== NO_MATCH) {\n return processed;\n }\n }\n\n // edge case for when illegal matches $ (end of line) which is technically\n // a 0 width match but not a begin/end match so it's not caught by the\n // first handler (when ignoreIllegals is true)\n if (match.type === \"illegal\" && lexeme === \"\") {\n // advance so we aren't stuck in an infinite loop\n modeBuffer += \"\\n\";\n return 1;\n }\n\n // infinite loops are BAD, this is a last ditch catch all. if we have a\n // decent number of iterations yet our index (cursor position in our\n // parsing) still 3x behind our index then something is very wrong\n // so we bail\n if (iterations > 100000 && iterations > match.index * 3) {\n const err = new Error('potential infinite loop, way more iterations than matches');\n throw err;\n }\n\n /*\n Why might be find ourselves here? An potential end match that was\n triggered but could not be completed. IE, `doEndMatch` returned NO_MATCH.\n (this could be because a callback requests the match be ignored, etc)\n\n This causes no real harm other than stopping a few times too many.\n */\n\n modeBuffer += lexeme;\n return lexeme.length;\n }\n\n const language = getLanguage(languageName);\n if (!language) {\n error(LANGUAGE_NOT_FOUND.replace(\"{}\", languageName));\n throw new Error('Unknown language: \"' + languageName + '\"');\n }\n\n const md = compileLanguage(language);\n let result = '';\n /** @type {CompiledMode} */\n let top = continuation || md;\n /** @type Record */\n const continuations = {}; // keep continuations for sub-languages\n const emitter = new options.__emitter(options);\n processContinuations();\n let modeBuffer = '';\n let relevance = 0;\n let index = 0;\n let iterations = 0;\n let resumeScanAtSamePosition = false;\n\n try {\n if (!language.__emitTokens) {\n top.matcher.considerAll();\n\n for (;;) {\n iterations++;\n if (resumeScanAtSamePosition) {\n // only regexes not matched previously will now be\n // considered for a potential match\n resumeScanAtSamePosition = false;\n } else {\n top.matcher.considerAll();\n }\n top.matcher.lastIndex = index;\n\n const match = top.matcher.exec(codeToHighlight);\n // console.log(\"match\", match[0], match.rule && match.rule.begin)\n\n if (!match) break;\n\n const beforeMatch = codeToHighlight.substring(index, match.index);\n const processedCount = processLexeme(beforeMatch, match);\n index = match.index + processedCount;\n }\n processLexeme(codeToHighlight.substring(index));\n } else {\n language.__emitTokens(codeToHighlight, emitter);\n }\n\n emitter.finalize();\n result = emitter.toHTML();\n\n return {\n language: languageName,\n value: result,\n relevance,\n illegal: false,\n _emitter: emitter,\n _top: top\n };\n } catch (err) {\n if (err.message && err.message.includes('Illegal')) {\n return {\n language: languageName,\n value: escape(codeToHighlight),\n illegal: true,\n relevance: 0,\n _illegalBy: {\n message: err.message,\n index,\n context: codeToHighlight.slice(index - 100, index + 100),\n mode: err.mode,\n resultSoFar: result\n },\n _emitter: emitter\n };\n } else if (SAFE_MODE) {\n return {\n language: languageName,\n value: escape(codeToHighlight),\n illegal: false,\n relevance: 0,\n errorRaised: err,\n _emitter: emitter,\n _top: top\n };\n } else {\n throw err;\n }\n }\n }\n\n /**\n * returns a valid highlight result, without actually doing any actual work,\n * auto highlight starts with this and it's possible for small snippets that\n * auto-detection may not find a better match\n * @param {string} code\n * @returns {HighlightResult}\n */\n function justTextHighlightResult(code) {\n const result = {\n value: escape(code),\n illegal: false,\n relevance: 0,\n _top: PLAINTEXT_LANGUAGE,\n _emitter: new options.__emitter(options)\n };\n result._emitter.addText(code);\n return result;\n }\n\n /**\n Highlighting with language detection. Accepts a string with the code to\n highlight. Returns an object with the following properties:\n\n - language (detected language)\n - relevance (int)\n - value (an HTML string with highlighting markup)\n - secondBest (object with the same structure for second-best heuristically\n detected language, may be absent)\n\n @param {string} code\n @param {Array} [languageSubset]\n @returns {AutoHighlightResult}\n */\n function highlightAuto(code, languageSubset) {\n languageSubset = languageSubset || options.languages || Object.keys(languages);\n const plaintext = justTextHighlightResult(code);\n\n const results = languageSubset.filter(getLanguage).filter(autoDetection).map(name =>\n _highlight(name, code, false)\n );\n results.unshift(plaintext); // plaintext is always an option\n\n const sorted = results.sort((a, b) => {\n // sort base on relevance\n if (a.relevance !== b.relevance) return b.relevance - a.relevance;\n\n // always award the tie to the base language\n // ie if C++ and Arduino are tied, it's more likely to be C++\n if (a.language && b.language) {\n if (getLanguage(a.language).supersetOf === b.language) {\n return 1;\n } else if (getLanguage(b.language).supersetOf === a.language) {\n return -1;\n }\n }\n\n // otherwise say they are equal, which has the effect of sorting on\n // relevance while preserving the original ordering - which is how ties\n // have historically been settled, ie the language that comes first always\n // wins in the case of a tie\n return 0;\n });\n\n const [best, secondBest] = sorted;\n\n /** @type {AutoHighlightResult} */\n const result = best;\n result.secondBest = secondBest;\n\n return result;\n }\n\n /**\n * Builds new class name for block given the language name\n *\n * @param {HTMLElement} element\n * @param {string} [currentLang]\n * @param {string} [resultLang]\n */\n function updateClassName(element, currentLang, resultLang) {\n const language = (currentLang && aliases[currentLang]) || resultLang;\n\n element.classList.add(\"hljs\");\n element.classList.add(`language-${language}`);\n }\n\n /**\n * Applies highlighting to a DOM node containing code.\n *\n * @param {HighlightedHTMLElement} element - the HTML element to highlight\n */\n function highlightElement(element) {\n /** @type HTMLElement */\n let node = null;\n const language = blockLanguage(element);\n\n if (shouldNotHighlight(language)) return;\n\n fire(\"before:highlightElement\",\n { el: element, language });\n\n if (element.dataset.highlighted) {\n console.log(\"Element previously highlighted. To highlight again, first unset `dataset.highlighted`.\", element);\n return;\n }\n\n // we should be all text, no child nodes (unescaped HTML) - this is possibly\n // an HTML injection attack - it's likely too late if this is already in\n // production (the code has likely already done its damage by the time\n // we're seeing it)... but we yell loudly about this so that hopefully it's\n // more likely to be caught in development before making it to production\n if (element.children.length > 0) {\n if (!options.ignoreUnescapedHTML) {\n console.warn(\"One of your code blocks includes unescaped HTML. This is a potentially serious security risk.\");\n console.warn(\"https://github.com/highlightjs/highlight.js/wiki/security\");\n console.warn(\"The element with unescaped HTML:\");\n console.warn(element);\n }\n if (options.throwUnescapedHTML) {\n const err = new HTMLInjectionError(\n \"One of your code blocks includes unescaped HTML.\",\n element.innerHTML\n );\n throw err;\n }\n }\n\n node = element;\n const text = node.textContent;\n const result = language ? highlight(text, { language, ignoreIllegals: true }) : highlightAuto(text);\n\n element.innerHTML = result.value;\n element.dataset.highlighted = \"yes\";\n updateClassName(element, language, result.language);\n element.result = {\n language: result.language,\n // TODO: remove with version 11.0\n re: result.relevance,\n relevance: result.relevance\n };\n if (result.secondBest) {\n element.secondBest = {\n language: result.secondBest.language,\n relevance: result.secondBest.relevance\n };\n }\n\n fire(\"after:highlightElement\", { el: element, result, text });\n }\n\n /**\n * Updates highlight.js global options with the passed options\n *\n * @param {Partial} userOptions\n */\n function configure(userOptions) {\n options = inherit(options, userOptions);\n }\n\n // TODO: remove v12, deprecated\n const initHighlighting = () => {\n highlightAll();\n deprecated(\"10.6.0\", \"initHighlighting() deprecated. Use highlightAll() now.\");\n };\n\n // TODO: remove v12, deprecated\n function initHighlightingOnLoad() {\n highlightAll();\n deprecated(\"10.6.0\", \"initHighlightingOnLoad() deprecated. Use highlightAll() now.\");\n }\n\n let wantsHighlight = false;\n\n /**\n * auto-highlights all pre>code elements on the page\n */\n function highlightAll() {\n function boot() {\n // if a highlight was requested before DOM was loaded, do now\n highlightAll();\n }\n\n // if we are called too early in the loading process\n if (document.readyState === \"loading\") {\n // make sure the event listener is only added once\n if (!wantsHighlight) {\n window.addEventListener('DOMContentLoaded', boot, false);\n }\n wantsHighlight = true;\n return;\n }\n\n const blocks = document.querySelectorAll(options.cssSelector);\n blocks.forEach(highlightElement);\n }\n\n /**\n * Register a language grammar module\n *\n * @param {string} languageName\n * @param {LanguageFn} languageDefinition\n */\n function registerLanguage(languageName, languageDefinition) {\n let lang = null;\n try {\n lang = languageDefinition(hljs);\n } catch (error$1) {\n error(\"Language definition for '{}' could not be registered.\".replace(\"{}\", languageName));\n // hard or soft error\n if (!SAFE_MODE) { throw error$1; } else { error(error$1); }\n // languages that have serious errors are replaced with essentially a\n // \"plaintext\" stand-in so that the code blocks will still get normal\n // css classes applied to them - and one bad language won't break the\n // entire highlighter\n lang = PLAINTEXT_LANGUAGE;\n }\n // give it a temporary name if it doesn't have one in the meta-data\n if (!lang.name) lang.name = languageName;\n languages[languageName] = lang;\n lang.rawDefinition = languageDefinition.bind(null, hljs);\n\n if (lang.aliases) {\n registerAliases(lang.aliases, { languageName });\n }\n }\n\n /**\n * Remove a language grammar module\n *\n * @param {string} languageName\n */\n function unregisterLanguage(languageName) {\n delete languages[languageName];\n for (const alias of Object.keys(aliases)) {\n if (aliases[alias] === languageName) {\n delete aliases[alias];\n }\n }\n }\n\n /**\n * @returns {string[]} List of language internal names\n */\n function listLanguages() {\n return Object.keys(languages);\n }\n\n /**\n * @param {string} name - name of the language to retrieve\n * @returns {Language | undefined}\n */\n function getLanguage(name) {\n name = (name || '').toLowerCase();\n return languages[name] || languages[aliases[name]];\n }\n\n /**\n *\n * @param {string|string[]} aliasList - single alias or list of aliases\n * @param {{languageName: string}} opts\n */\n function registerAliases(aliasList, { languageName }) {\n if (typeof aliasList === 'string') {\n aliasList = [aliasList];\n }\n aliasList.forEach(alias => { aliases[alias.toLowerCase()] = languageName; });\n }\n\n /**\n * Determines if a given language has auto-detection enabled\n * @param {string} name - name of the language\n */\n function autoDetection(name) {\n const lang = getLanguage(name);\n return lang && !lang.disableAutodetect;\n }\n\n /**\n * Upgrades the old highlightBlock plugins to the new\n * highlightElement API\n * @param {HLJSPlugin} plugin\n */\n function upgradePluginAPI(plugin) {\n // TODO: remove with v12\n if (plugin[\"before:highlightBlock\"] && !plugin[\"before:highlightElement\"]) {\n plugin[\"before:highlightElement\"] = (data) => {\n plugin[\"before:highlightBlock\"](\n Object.assign({ block: data.el }, data)\n );\n };\n }\n if (plugin[\"after:highlightBlock\"] && !plugin[\"after:highlightElement\"]) {\n plugin[\"after:highlightElement\"] = (data) => {\n plugin[\"after:highlightBlock\"](\n Object.assign({ block: data.el }, data)\n );\n };\n }\n }\n\n /**\n * @param {HLJSPlugin} plugin\n */\n function addPlugin(plugin) {\n upgradePluginAPI(plugin);\n plugins.push(plugin);\n }\n\n /**\n * @param {HLJSPlugin} plugin\n */\n function removePlugin(plugin) {\n const index = plugins.indexOf(plugin);\n if (index !== -1) {\n plugins.splice(index, 1);\n }\n }\n\n /**\n *\n * @param {PluginEvent} event\n * @param {any} args\n */\n function fire(event, args) {\n const cb = event;\n plugins.forEach(function(plugin) {\n if (plugin[cb]) {\n plugin[cb](args);\n }\n });\n }\n\n /**\n * DEPRECATED\n * @param {HighlightedHTMLElement} el\n */\n function deprecateHighlightBlock(el) {\n deprecated(\"10.7.0\", \"highlightBlock will be removed entirely in v12.0\");\n deprecated(\"10.7.0\", \"Please use highlightElement now.\");\n\n return highlightElement(el);\n }\n\n /* Interface definition */\n Object.assign(hljs, {\n highlight,\n highlightAuto,\n highlightAll,\n highlightElement,\n // TODO: Remove with v12 API\n highlightBlock: deprecateHighlightBlock,\n configure,\n initHighlighting,\n initHighlightingOnLoad,\n registerLanguage,\n unregisterLanguage,\n listLanguages,\n getLanguage,\n registerAliases,\n autoDetection,\n inherit,\n addPlugin,\n removePlugin\n });\n\n hljs.debugMode = function() { SAFE_MODE = false; };\n hljs.safeMode = function() { SAFE_MODE = true; };\n hljs.versionString = version;\n\n hljs.regex = {\n concat: concat,\n lookahead: lookahead,\n either: either,\n optional: optional,\n anyNumberOfTimes: anyNumberOfTimes\n };\n\n for (const key in MODES) {\n // @ts-ignore\n if (typeof MODES[key] === \"object\") {\n // @ts-ignore\n deepFreeze(MODES[key]);\n }\n }\n\n // merge all the modes/regexes into our main object\n Object.assign(hljs, MODES);\n\n return hljs;\n};\n\n// Other names for the variable may break build script\nconst highlight = HLJS({});\n\n// returns a new instance of the highlighter to be used for extensions\n// check https://github.com/wooorm/lowlight/issues/47\nhighlight.newInstance = () => HLJS({});\n\nmodule.exports = highlight;\nhighlight.HighlightJS = highlight;\nhighlight.default = highlight;\n", "/*\nLanguage: Ruby\nDescription: Ruby is a dynamic, open source programming language with a focus on simplicity and productivity.\nWebsite: https://www.ruby-lang.org/\nAuthor: Anton Kovalyov \nContributors: Peter Leonov , Vasily Polovnyov , Loren Segal , Pascal Hurni , Cedric Sohrauer \nCategory: common, scripting\n*/\n\nfunction ruby(hljs) {\n const regex = hljs.regex;\n const RUBY_METHOD_RE = '([a-zA-Z_]\\\\w*[!?=]?|[-+~]@|<<|>>|=~|===?|<=>|[<>]=?|\\\\*\\\\*|[-/+%^&*~`|]|\\\\[\\\\]=?)';\n // TODO: move concepts like CAMEL_CASE into `modes.js`\n const CLASS_NAME_RE = regex.either(\n /\\b([A-Z]+[a-z0-9]+)+/,\n // ends in caps\n /\\b([A-Z]+[a-z0-9]+)+[A-Z]+/,\n )\n ;\n const CLASS_NAME_WITH_NAMESPACE_RE = regex.concat(CLASS_NAME_RE, /(::\\w+)*/);\n // very popular ruby built-ins that one might even assume\n // are actual keywords (despite that not being the case)\n const PSEUDO_KWS = [\n \"include\",\n \"extend\",\n \"prepend\",\n \"public\",\n \"private\",\n \"protected\",\n \"raise\",\n \"throw\"\n ];\n const RUBY_KEYWORDS = {\n \"variable.constant\": [\n \"__FILE__\",\n \"__LINE__\",\n \"__ENCODING__\"\n ],\n \"variable.language\": [\n \"self\",\n \"super\",\n ],\n keyword: [\n \"alias\",\n \"and\",\n \"begin\",\n \"BEGIN\",\n \"break\",\n \"case\",\n \"class\",\n \"defined\",\n \"do\",\n \"else\",\n \"elsif\",\n \"end\",\n \"END\",\n \"ensure\",\n \"for\",\n \"if\",\n \"in\",\n \"module\",\n \"next\",\n \"not\",\n \"or\",\n \"redo\",\n \"require\",\n \"rescue\",\n \"retry\",\n \"return\",\n \"then\",\n \"undef\",\n \"unless\",\n \"until\",\n \"when\",\n \"while\",\n \"yield\",\n ...PSEUDO_KWS\n ],\n built_in: [\n \"proc\",\n \"lambda\",\n \"attr_accessor\",\n \"attr_reader\",\n \"attr_writer\",\n \"define_method\",\n \"private_constant\",\n \"module_function\"\n ],\n literal: [\n \"true\",\n \"false\",\n \"nil\"\n ]\n };\n const YARDOCTAG = {\n className: 'doctag',\n begin: '@[A-Za-z]+'\n };\n const IRB_OBJECT = {\n begin: '#<',\n end: '>'\n };\n const COMMENT_MODES = [\n hljs.COMMENT(\n '#',\n '$',\n { contains: [ YARDOCTAG ] }\n ),\n hljs.COMMENT(\n '^=begin',\n '^=end',\n {\n contains: [ YARDOCTAG ],\n relevance: 10\n }\n ),\n hljs.COMMENT('^__END__', hljs.MATCH_NOTHING_RE)\n ];\n const SUBST = {\n className: 'subst',\n begin: /#\\{/,\n end: /\\}/,\n keywords: RUBY_KEYWORDS\n };\n const STRING = {\n className: 'string',\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ],\n variants: [\n {\n begin: /'/,\n end: /'/\n },\n {\n begin: /\"/,\n end: /\"/\n },\n {\n begin: /`/,\n end: /`/\n },\n {\n begin: /%[qQwWx]?\\(/,\n end: /\\)/\n },\n {\n begin: /%[qQwWx]?\\[/,\n end: /\\]/\n },\n {\n begin: /%[qQwWx]?\\{/,\n end: /\\}/\n },\n {\n begin: /%[qQwWx]?/\n },\n {\n begin: /%[qQwWx]?\\//,\n end: /\\//\n },\n {\n begin: /%[qQwWx]?%/,\n end: /%/\n },\n {\n begin: /%[qQwWx]?-/,\n end: /-/\n },\n {\n begin: /%[qQwWx]?\\|/,\n end: /\\|/\n },\n // in the following expressions, \\B in the beginning suppresses recognition of ?-sequences\n // where ? is the last character of a preceding identifier, as in: `func?4`\n { begin: /\\B\\?(\\\\\\d{1,3})/ },\n { begin: /\\B\\?(\\\\x[A-Fa-f0-9]{1,2})/ },\n { begin: /\\B\\?(\\\\u\\{?[A-Fa-f0-9]{1,6}\\}?)/ },\n { begin: /\\B\\?(\\\\M-\\\\C-|\\\\M-\\\\c|\\\\c\\\\M-|\\\\M-|\\\\C-\\\\M-)[\\x20-\\x7e]/ },\n { begin: /\\B\\?\\\\(c|C-)[\\x20-\\x7e]/ },\n { begin: /\\B\\?\\\\?\\S/ },\n // heredocs\n {\n // this guard makes sure that we have an entire heredoc and not a false\n // positive (auto-detect, etc.)\n begin: regex.concat(\n /<<[-~]?'?/,\n regex.lookahead(/(\\w+)(?=\\W)[^\\n]*\\n(?:[^\\n]*\\n)*?\\s*\\1\\b/)\n ),\n contains: [\n hljs.END_SAME_AS_BEGIN({\n begin: /(\\w+)/,\n end: /(\\w+)/,\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ]\n })\n ]\n }\n ]\n };\n\n // Ruby syntax is underdocumented, but this grammar seems to be accurate\n // as of version 2.7.2 (confirmed with (irb and `Ripper.sexp(...)`)\n // https://docs.ruby-lang.org/en/2.7.0/doc/syntax/literals_rdoc.html#label-Numbers\n const decimal = '[1-9](_?[0-9])*|0';\n const digits = '[0-9](_?[0-9])*';\n const NUMBER = {\n className: 'number',\n relevance: 0,\n variants: [\n // decimal integer/float, optionally exponential or rational, optionally imaginary\n { begin: `\\\\b(${decimal})(\\\\.(${digits}))?([eE][+-]?(${digits})|r)?i?\\\\b` },\n\n // explicit decimal/binary/octal/hexadecimal integer,\n // optionally rational and/or imaginary\n { begin: \"\\\\b0[dD][0-9](_?[0-9])*r?i?\\\\b\" },\n { begin: \"\\\\b0[bB][0-1](_?[0-1])*r?i?\\\\b\" },\n { begin: \"\\\\b0[oO][0-7](_?[0-7])*r?i?\\\\b\" },\n { begin: \"\\\\b0[xX][0-9a-fA-F](_?[0-9a-fA-F])*r?i?\\\\b\" },\n\n // 0-prefixed implicit octal integer, optionally rational and/or imaginary\n { begin: \"\\\\b0(_?[0-7])+r?i?\\\\b\" }\n ]\n };\n\n const PARAMS = {\n variants: [\n {\n match: /\\(\\)/,\n },\n {\n className: 'params',\n begin: /\\(/,\n end: /(?=\\))/,\n excludeBegin: true,\n endsParent: true,\n keywords: RUBY_KEYWORDS,\n }\n ]\n };\n\n const INCLUDE_EXTEND = {\n match: [\n /(include|extend)\\s+/,\n CLASS_NAME_WITH_NAMESPACE_RE\n ],\n scope: {\n 2: \"title.class\"\n },\n keywords: RUBY_KEYWORDS\n };\n\n const CLASS_DEFINITION = {\n variants: [\n {\n match: [\n /class\\s+/,\n CLASS_NAME_WITH_NAMESPACE_RE,\n /\\s+<\\s+/,\n CLASS_NAME_WITH_NAMESPACE_RE\n ]\n },\n {\n match: [\n /\\b(class|module)\\s+/,\n CLASS_NAME_WITH_NAMESPACE_RE\n ]\n }\n ],\n scope: {\n 2: \"title.class\",\n 4: \"title.class.inherited\"\n },\n keywords: RUBY_KEYWORDS\n };\n\n const UPPER_CASE_CONSTANT = {\n relevance: 0,\n match: /\\b[A-Z][A-Z_0-9]+\\b/,\n className: \"variable.constant\"\n };\n\n const METHOD_DEFINITION = {\n match: [\n /def/, /\\s+/,\n RUBY_METHOD_RE\n ],\n scope: {\n 1: \"keyword\",\n 3: \"title.function\"\n },\n contains: [\n PARAMS\n ]\n };\n\n const OBJECT_CREATION = {\n relevance: 0,\n match: [\n CLASS_NAME_WITH_NAMESPACE_RE,\n /\\.new[. (]/\n ],\n scope: {\n 1: \"title.class\"\n }\n };\n\n // CamelCase\n const CLASS_REFERENCE = {\n relevance: 0,\n match: CLASS_NAME_RE,\n scope: \"title.class\"\n };\n\n const RUBY_DEFAULT_CONTAINS = [\n STRING,\n CLASS_DEFINITION,\n INCLUDE_EXTEND,\n OBJECT_CREATION,\n UPPER_CASE_CONSTANT,\n CLASS_REFERENCE,\n METHOD_DEFINITION,\n {\n // swallow namespace qualifiers before symbols\n begin: hljs.IDENT_RE + '::' },\n {\n className: 'symbol',\n begin: hljs.UNDERSCORE_IDENT_RE + '(!|\\\\?)?:',\n relevance: 0\n },\n {\n className: 'symbol',\n begin: ':(?!\\\\s)',\n contains: [\n STRING,\n { begin: RUBY_METHOD_RE }\n ],\n relevance: 0\n },\n NUMBER,\n {\n // negative-look forward attempts to prevent false matches like:\n // @ident@ or $ident$ that might indicate this is not ruby at all\n className: \"variable\",\n begin: '(\\\\$\\\\W)|((\\\\$|@@?)(\\\\w+))(?=[^@$?])' + `(?![A-Za-z])(?![@$?'])`\n },\n {\n className: 'params',\n begin: /\\|(?!=)/,\n end: /\\|/,\n excludeBegin: true,\n excludeEnd: true,\n relevance: 0, // this could be a lot of things (in other languages) other than params\n keywords: RUBY_KEYWORDS\n },\n { // regexp container\n begin: '(' + hljs.RE_STARTERS_RE + '|unless)\\\\s*',\n keywords: 'unless',\n contains: [\n {\n className: 'regexp',\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ],\n illegal: /\\n/,\n variants: [\n {\n begin: '/',\n end: '/[a-z]*'\n },\n {\n begin: /%r\\{/,\n end: /\\}[a-z]*/\n },\n {\n begin: '%r\\\\(',\n end: '\\\\)[a-z]*'\n },\n {\n begin: '%r!',\n end: '![a-z]*'\n },\n {\n begin: '%r\\\\[',\n end: '\\\\][a-z]*'\n }\n ]\n }\n ].concat(IRB_OBJECT, COMMENT_MODES),\n relevance: 0\n }\n ].concat(IRB_OBJECT, COMMENT_MODES);\n\n SUBST.contains = RUBY_DEFAULT_CONTAINS;\n PARAMS.contains = RUBY_DEFAULT_CONTAINS;\n\n // >>\n // ?>\n const SIMPLE_PROMPT = \"[>?]>\";\n // irb(main):001:0>\n const DEFAULT_PROMPT = \"[\\\\w#]+\\\\(\\\\w+\\\\):\\\\d+:\\\\d+[>*]\";\n const RVM_PROMPT = \"(\\\\w+-)?\\\\d+\\\\.\\\\d+\\\\.\\\\d+(p\\\\d+)?[^\\\\d][^>]+>\";\n\n const IRB_DEFAULT = [\n {\n begin: /^\\s*=>/,\n starts: {\n end: '$',\n contains: RUBY_DEFAULT_CONTAINS\n }\n },\n {\n className: 'meta.prompt',\n begin: '^(' + SIMPLE_PROMPT + \"|\" + DEFAULT_PROMPT + '|' + RVM_PROMPT + ')(?=[ ])',\n starts: {\n end: '$',\n keywords: RUBY_KEYWORDS,\n contains: RUBY_DEFAULT_CONTAINS\n }\n }\n ];\n\n COMMENT_MODES.unshift(IRB_OBJECT);\n\n return {\n name: 'Ruby',\n aliases: [\n 'rb',\n 'gemspec',\n 'podspec',\n 'thor',\n 'irb'\n ],\n keywords: RUBY_KEYWORDS,\n illegal: /\\/\\*/,\n contains: [ hljs.SHEBANG({ binary: \"ruby\" }) ]\n .concat(IRB_DEFAULT)\n .concat(COMMENT_MODES)\n .concat(RUBY_DEFAULT_CONTAINS)\n };\n}\n\nmodule.exports = ruby;\n", "/*\nLanguage: ERB (Embedded Ruby)\nRequires: xml.js, ruby.js\nAuthor: Lucas Mazza \nContributors: Kassio Borges \nDescription: \"Bridge\" language defining fragments of Ruby in HTML within <% .. %>\nWebsite: https://ruby-doc.org/stdlib-2.6.5/libdoc/erb/rdoc/ERB.html\nCategory: template\n*/\n\n/** @type LanguageFn */\nfunction erb(hljs) {\n return {\n name: 'ERB',\n subLanguage: 'xml',\n contains: [\n hljs.COMMENT('<%#', '%>'),\n {\n begin: '<%[%=-]?',\n end: '[%-]?%>',\n subLanguage: 'ruby',\n excludeBegin: true,\n excludeEnd: true\n }\n ]\n };\n}\n\nmodule.exports = erb;\n", "/*\nLanguage: Bash\nAuthor: vah \nContributrors: Benjamin Pannell \nWebsite: https://www.gnu.org/software/bash/\nCategory: common, scripting\n*/\n\n/** @type LanguageFn */\nfunction bash(hljs) {\n const regex = hljs.regex;\n const VAR = {};\n const BRACED_VAR = {\n begin: /\\$\\{/,\n end: /\\}/,\n contains: [\n \"self\",\n {\n begin: /:-/,\n contains: [ VAR ]\n } // default values\n ]\n };\n Object.assign(VAR, {\n className: 'variable',\n variants: [\n { begin: regex.concat(/\\$[\\w\\d#@][\\w\\d_]*/,\n // negative look-ahead tries to avoid matching patterns that are not\n // Perl at all like $ident$, @ident@, etc.\n `(?![\\\\w\\\\d])(?![$])`) },\n BRACED_VAR\n ]\n });\n\n const SUBST = {\n className: 'subst',\n begin: /\\$\\(/,\n end: /\\)/,\n contains: [ hljs.BACKSLASH_ESCAPE ]\n };\n const COMMENT = hljs.inherit(\n hljs.COMMENT(),\n {\n match: [\n /(^|\\s)/,\n /#.*$/\n ],\n scope: {\n 2: 'comment'\n }\n }\n );\n const HERE_DOC = {\n begin: /<<-?\\s*(?=\\w+)/,\n starts: { contains: [\n hljs.END_SAME_AS_BEGIN({\n begin: /(\\w+)/,\n end: /(\\w+)/,\n className: 'string'\n })\n ] }\n };\n const QUOTE_STRING = {\n className: 'string',\n begin: /\"/,\n end: /\"/,\n contains: [\n hljs.BACKSLASH_ESCAPE,\n VAR,\n SUBST\n ]\n };\n SUBST.contains.push(QUOTE_STRING);\n const ESCAPED_QUOTE = {\n match: /\\\\\"/\n };\n const APOS_STRING = {\n className: 'string',\n begin: /'/,\n end: /'/\n };\n const ESCAPED_APOS = {\n match: /\\\\'/\n };\n const ARITHMETIC = {\n begin: /\\$?\\(\\(/,\n end: /\\)\\)/,\n contains: [\n {\n begin: /\\d+#[0-9a-f]+/,\n className: \"number\"\n },\n hljs.NUMBER_MODE,\n VAR\n ]\n };\n const SH_LIKE_SHELLS = [\n \"fish\",\n \"bash\",\n \"zsh\",\n \"sh\",\n \"csh\",\n \"ksh\",\n \"tcsh\",\n \"dash\",\n \"scsh\",\n ];\n const KNOWN_SHEBANG = hljs.SHEBANG({\n binary: `(${SH_LIKE_SHELLS.join(\"|\")})`,\n relevance: 10\n });\n const FUNCTION = {\n className: 'function',\n begin: /\\w[\\w\\d_]*\\s*\\(\\s*\\)\\s*\\{/,\n returnBegin: true,\n contains: [ hljs.inherit(hljs.TITLE_MODE, { begin: /\\w[\\w\\d_]*/ }) ],\n relevance: 0\n };\n\n const KEYWORDS = [\n \"if\",\n \"then\",\n \"else\",\n \"elif\",\n \"fi\",\n \"time\",\n \"for\",\n \"while\",\n \"until\",\n \"in\",\n \"do\",\n \"done\",\n \"case\",\n \"esac\",\n \"coproc\",\n \"function\",\n \"select\"\n ];\n\n const LITERALS = [\n \"true\",\n \"false\"\n ];\n\n // to consume paths to prevent keyword matches inside them\n const PATH_MODE = { match: /(\\/[a-z._-]+)+/ };\n\n // http://www.gnu.org/software/bash/manual/html_node/Shell-Builtin-Commands.html\n const SHELL_BUILT_INS = [\n \"break\",\n \"cd\",\n \"continue\",\n \"eval\",\n \"exec\",\n \"exit\",\n \"export\",\n \"getopts\",\n \"hash\",\n \"pwd\",\n \"readonly\",\n \"return\",\n \"shift\",\n \"test\",\n \"times\",\n \"trap\",\n \"umask\",\n \"unset\"\n ];\n\n const BASH_BUILT_INS = [\n \"alias\",\n \"bind\",\n \"builtin\",\n \"caller\",\n \"command\",\n \"declare\",\n \"echo\",\n \"enable\",\n \"help\",\n \"let\",\n \"local\",\n \"logout\",\n \"mapfile\",\n \"printf\",\n \"read\",\n \"readarray\",\n \"source\",\n \"sudo\",\n \"type\",\n \"typeset\",\n \"ulimit\",\n \"unalias\"\n ];\n\n const ZSH_BUILT_INS = [\n \"autoload\",\n \"bg\",\n \"bindkey\",\n \"bye\",\n \"cap\",\n \"chdir\",\n \"clone\",\n \"comparguments\",\n \"compcall\",\n \"compctl\",\n \"compdescribe\",\n \"compfiles\",\n \"compgroups\",\n \"compquote\",\n \"comptags\",\n \"comptry\",\n \"compvalues\",\n \"dirs\",\n \"disable\",\n \"disown\",\n \"echotc\",\n \"echoti\",\n \"emulate\",\n \"fc\",\n \"fg\",\n \"float\",\n \"functions\",\n \"getcap\",\n \"getln\",\n \"history\",\n \"integer\",\n \"jobs\",\n \"kill\",\n \"limit\",\n \"log\",\n \"noglob\",\n \"popd\",\n \"print\",\n \"pushd\",\n \"pushln\",\n \"rehash\",\n \"sched\",\n \"setcap\",\n \"setopt\",\n \"stat\",\n \"suspend\",\n \"ttyctl\",\n \"unfunction\",\n \"unhash\",\n \"unlimit\",\n \"unsetopt\",\n \"vared\",\n \"wait\",\n \"whence\",\n \"where\",\n \"which\",\n \"zcompile\",\n \"zformat\",\n \"zftp\",\n \"zle\",\n \"zmodload\",\n \"zparseopts\",\n \"zprof\",\n \"zpty\",\n \"zregexparse\",\n \"zsocket\",\n \"zstyle\",\n \"ztcp\"\n ];\n\n const GNU_CORE_UTILS = [\n \"chcon\",\n \"chgrp\",\n \"chown\",\n \"chmod\",\n \"cp\",\n \"dd\",\n \"df\",\n \"dir\",\n \"dircolors\",\n \"ln\",\n \"ls\",\n \"mkdir\",\n \"mkfifo\",\n \"mknod\",\n \"mktemp\",\n \"mv\",\n \"realpath\",\n \"rm\",\n \"rmdir\",\n \"shred\",\n \"sync\",\n \"touch\",\n \"truncate\",\n \"vdir\",\n \"b2sum\",\n \"base32\",\n \"base64\",\n \"cat\",\n \"cksum\",\n \"comm\",\n \"csplit\",\n \"cut\",\n \"expand\",\n \"fmt\",\n \"fold\",\n \"head\",\n \"join\",\n \"md5sum\",\n \"nl\",\n \"numfmt\",\n \"od\",\n \"paste\",\n \"ptx\",\n \"pr\",\n \"sha1sum\",\n \"sha224sum\",\n \"sha256sum\",\n \"sha384sum\",\n \"sha512sum\",\n \"shuf\",\n \"sort\",\n \"split\",\n \"sum\",\n \"tac\",\n \"tail\",\n \"tr\",\n \"tsort\",\n \"unexpand\",\n \"uniq\",\n \"wc\",\n \"arch\",\n \"basename\",\n \"chroot\",\n \"date\",\n \"dirname\",\n \"du\",\n \"echo\",\n \"env\",\n \"expr\",\n \"factor\",\n // \"false\", // keyword literal already\n \"groups\",\n \"hostid\",\n \"id\",\n \"link\",\n \"logname\",\n \"nice\",\n \"nohup\",\n \"nproc\",\n \"pathchk\",\n \"pinky\",\n \"printenv\",\n \"printf\",\n \"pwd\",\n \"readlink\",\n \"runcon\",\n \"seq\",\n \"sleep\",\n \"stat\",\n \"stdbuf\",\n \"stty\",\n \"tee\",\n \"test\",\n \"timeout\",\n // \"true\", // keyword literal already\n \"tty\",\n \"uname\",\n \"unlink\",\n \"uptime\",\n \"users\",\n \"who\",\n \"whoami\",\n \"yes\"\n ];\n\n return {\n name: 'Bash',\n aliases: [\n 'sh',\n 'zsh'\n ],\n keywords: {\n $pattern: /\\b[a-z][a-z0-9._-]+\\b/,\n keyword: KEYWORDS,\n literal: LITERALS,\n built_in: [\n ...SHELL_BUILT_INS,\n ...BASH_BUILT_INS,\n // Shell modifiers\n \"set\",\n \"shopt\",\n ...ZSH_BUILT_INS,\n ...GNU_CORE_UTILS\n ]\n },\n contains: [\n KNOWN_SHEBANG, // to catch known shells and boost relevancy\n hljs.SHEBANG(), // to catch unknown shells but still highlight the shebang\n FUNCTION,\n ARITHMETIC,\n COMMENT,\n HERE_DOC,\n PATH_MODE,\n QUOTE_STRING,\n ESCAPED_QUOTE,\n APOS_STRING,\n ESCAPED_APOS,\n VAR\n ]\n };\n}\n\nmodule.exports = bash;\n", "const IDENT_RE = '[A-Za-z$_][0-9A-Za-z$_]*';\nconst KEYWORDS = [\n \"as\", // for exports\n \"in\",\n \"of\",\n \"if\",\n \"for\",\n \"while\",\n \"finally\",\n \"var\",\n \"new\",\n \"function\",\n \"do\",\n \"return\",\n \"void\",\n \"else\",\n \"break\",\n \"catch\",\n \"instanceof\",\n \"with\",\n \"throw\",\n \"case\",\n \"default\",\n \"try\",\n \"switch\",\n \"continue\",\n \"typeof\",\n \"delete\",\n \"let\",\n \"yield\",\n \"const\",\n \"class\",\n // JS handles these with a special rule\n // \"get\",\n // \"set\",\n \"debugger\",\n \"async\",\n \"await\",\n \"static\",\n \"import\",\n \"from\",\n \"export\",\n \"extends\",\n // It's reached stage 3, which is \"recommended for implementation\":\n \"using\"\n];\nconst LITERALS = [\n \"true\",\n \"false\",\n \"null\",\n \"undefined\",\n \"NaN\",\n \"Infinity\"\n];\n\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects\nconst TYPES = [\n // Fundamental objects\n \"Object\",\n \"Function\",\n \"Boolean\",\n \"Symbol\",\n // numbers and dates\n \"Math\",\n \"Date\",\n \"Number\",\n \"BigInt\",\n // text\n \"String\",\n \"RegExp\",\n // Indexed collections\n \"Array\",\n \"Float32Array\",\n \"Float64Array\",\n \"Int8Array\",\n \"Uint8Array\",\n \"Uint8ClampedArray\",\n \"Int16Array\",\n \"Int32Array\",\n \"Uint16Array\",\n \"Uint32Array\",\n \"BigInt64Array\",\n \"BigUint64Array\",\n // Keyed collections\n \"Set\",\n \"Map\",\n \"WeakSet\",\n \"WeakMap\",\n // Structured data\n \"ArrayBuffer\",\n \"SharedArrayBuffer\",\n \"Atomics\",\n \"DataView\",\n \"JSON\",\n // Control abstraction objects\n \"Promise\",\n \"Generator\",\n \"GeneratorFunction\",\n \"AsyncFunction\",\n // Reflection\n \"Reflect\",\n \"Proxy\",\n // Internationalization\n \"Intl\",\n // WebAssembly\n \"WebAssembly\"\n];\n\nconst ERROR_TYPES = [\n \"Error\",\n \"EvalError\",\n \"InternalError\",\n \"RangeError\",\n \"ReferenceError\",\n \"SyntaxError\",\n \"TypeError\",\n \"URIError\"\n];\n\nconst BUILT_IN_GLOBALS = [\n \"setInterval\",\n \"setTimeout\",\n \"clearInterval\",\n \"clearTimeout\",\n\n \"require\",\n \"exports\",\n\n \"eval\",\n \"isFinite\",\n \"isNaN\",\n \"parseFloat\",\n \"parseInt\",\n \"decodeURI\",\n \"decodeURIComponent\",\n \"encodeURI\",\n \"encodeURIComponent\",\n \"escape\",\n \"unescape\"\n];\n\nconst BUILT_IN_VARIABLES = [\n \"arguments\",\n \"this\",\n \"super\",\n \"console\",\n \"window\",\n \"document\",\n \"localStorage\",\n \"sessionStorage\",\n \"module\",\n \"global\" // Node.js\n];\n\nconst BUILT_INS = [].concat(\n BUILT_IN_GLOBALS,\n TYPES,\n ERROR_TYPES\n);\n\n/*\nLanguage: JavaScript\nDescription: JavaScript (JS) is a lightweight, interpreted, or just-in-time compiled programming language with first-class functions.\nCategory: common, scripting, web\nWebsite: https://developer.mozilla.org/en-US/docs/Web/JavaScript\n*/\n\n\n/** @type LanguageFn */\nfunction javascript(hljs) {\n const regex = hljs.regex;\n /**\n * Takes a string like \" {\n const tag = \"',\n end: ''\n };\n // to avoid some special cases inside isTrulyOpeningTag\n const XML_SELF_CLOSING = /<[A-Za-z0-9\\\\._:-]+\\s*\\/>/;\n const XML_TAG = {\n begin: /<[A-Za-z0-9\\\\._:-]+/,\n end: /\\/[A-Za-z0-9\\\\._:-]+>|\\/>/,\n /**\n * @param {RegExpMatchArray} match\n * @param {CallbackResponse} response\n */\n isTrulyOpeningTag: (match, response) => {\n const afterMatchIndex = match[0].length + match.index;\n const nextChar = match.input[afterMatchIndex];\n if (\n // HTML should not include another raw `<` inside a tag\n // nested type?\n // `>`, etc.\n nextChar === \"<\" ||\n // the , gives away that this is not HTML\n // ``\n nextChar === \",\"\n ) {\n response.ignoreMatch();\n return;\n }\n\n // ``\n // Quite possibly a tag, lets look for a matching closing tag...\n if (nextChar === \">\") {\n // if we cannot find a matching closing tag, then we\n // will ignore it\n if (!hasClosingTag(match, { after: afterMatchIndex })) {\n response.ignoreMatch();\n }\n }\n\n // `` (self-closing)\n // handled by simpleSelfClosing rule\n\n let m;\n const afterMatch = match.input.substring(afterMatchIndex);\n\n // some more template typing stuff\n // (key?: string) => Modify<\n if ((m = afterMatch.match(/^\\s*=/))) {\n response.ignoreMatch();\n return;\n }\n\n // ``\n // technically this could be HTML, but it smells like a type\n // NOTE: This is ugh, but added specifically for https://github.com/highlightjs/highlight.js/issues/3276\n if ((m = afterMatch.match(/^\\s+extends\\s+/))) {\n if (m.index === 0) {\n response.ignoreMatch();\n // eslint-disable-next-line no-useless-return\n return;\n }\n }\n }\n };\n const KEYWORDS$1 = {\n $pattern: IDENT_RE,\n keyword: KEYWORDS,\n literal: LITERALS,\n built_in: BUILT_INS,\n \"variable.language\": BUILT_IN_VARIABLES\n };\n\n // https://tc39.es/ecma262/#sec-literals-numeric-literals\n const decimalDigits = '[0-9](_?[0-9])*';\n const frac = `\\\\.(${decimalDigits})`;\n // DecimalIntegerLiteral, including Annex B NonOctalDecimalIntegerLiteral\n // https://tc39.es/ecma262/#sec-additional-syntax-numeric-literals\n const decimalInteger = `0|[1-9](_?[0-9])*|0[0-7]*[89][0-9]*`;\n const NUMBER = {\n className: 'number',\n variants: [\n // DecimalLiteral\n { begin: `(\\\\b(${decimalInteger})((${frac})|\\\\.)?|(${frac}))` +\n `[eE][+-]?(${decimalDigits})\\\\b` },\n { begin: `\\\\b(${decimalInteger})\\\\b((${frac})\\\\b|\\\\.)?|(${frac})\\\\b` },\n\n // DecimalBigIntegerLiteral\n { begin: `\\\\b(0|[1-9](_?[0-9])*)n\\\\b` },\n\n // NonDecimalIntegerLiteral\n { begin: \"\\\\b0[xX][0-9a-fA-F](_?[0-9a-fA-F])*n?\\\\b\" },\n { begin: \"\\\\b0[bB][0-1](_?[0-1])*n?\\\\b\" },\n { begin: \"\\\\b0[oO][0-7](_?[0-7])*n?\\\\b\" },\n\n // LegacyOctalIntegerLiteral (does not include underscore separators)\n // https://tc39.es/ecma262/#sec-additional-syntax-numeric-literals\n { begin: \"\\\\b0[0-7]+n?\\\\b\" },\n ],\n relevance: 0\n };\n\n const SUBST = {\n className: 'subst',\n begin: '\\\\$\\\\{',\n end: '\\\\}',\n keywords: KEYWORDS$1,\n contains: [] // defined later\n };\n const HTML_TEMPLATE = {\n begin: '\\.?html`',\n end: '',\n starts: {\n end: '`',\n returnEnd: false,\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ],\n subLanguage: 'xml'\n }\n };\n const CSS_TEMPLATE = {\n begin: '\\.?css`',\n end: '',\n starts: {\n end: '`',\n returnEnd: false,\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ],\n subLanguage: 'css'\n }\n };\n const GRAPHQL_TEMPLATE = {\n begin: '\\.?gql`',\n end: '',\n starts: {\n end: '`',\n returnEnd: false,\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ],\n subLanguage: 'graphql'\n }\n };\n const TEMPLATE_STRING = {\n className: 'string',\n begin: '`',\n end: '`',\n contains: [\n hljs.BACKSLASH_ESCAPE,\n SUBST\n ]\n };\n const JSDOC_COMMENT = hljs.COMMENT(\n /\\/\\*\\*(?!\\/)/,\n '\\\\*/',\n {\n relevance: 0,\n contains: [\n {\n begin: '(?=@[A-Za-z]+)',\n relevance: 0,\n contains: [\n {\n className: 'doctag',\n begin: '@[A-Za-z]+'\n },\n {\n className: 'type',\n begin: '\\\\{',\n end: '\\\\}',\n excludeEnd: true,\n excludeBegin: true,\n relevance: 0\n },\n {\n className: 'variable',\n begin: IDENT_RE$1 + '(?=\\\\s*(-)|$)',\n endsParent: true,\n relevance: 0\n },\n // eat spaces (not newlines) so we can find\n // types or variables\n {\n begin: /(?=[^\\n])\\s/,\n relevance: 0\n }\n ]\n }\n ]\n }\n );\n const COMMENT = {\n className: \"comment\",\n variants: [\n JSDOC_COMMENT,\n hljs.C_BLOCK_COMMENT_MODE,\n hljs.C_LINE_COMMENT_MODE\n ]\n };\n const SUBST_INTERNALS = [\n hljs.APOS_STRING_MODE,\n hljs.QUOTE_STRING_MODE,\n HTML_TEMPLATE,\n CSS_TEMPLATE,\n GRAPHQL_TEMPLATE,\n TEMPLATE_STRING,\n // Skip numbers when they are part of a variable name\n { match: /\\$\\d+/ },\n NUMBER,\n // This is intentional:\n // See https://github.com/highlightjs/highlight.js/issues/3288\n // hljs.REGEXP_MODE\n ];\n SUBST.contains = SUBST_INTERNALS\n .concat({\n // we need to pair up {} inside our subst to prevent\n // it from ending too early by matching another }\n begin: /\\{/,\n end: /\\}/,\n keywords: KEYWORDS$1,\n contains: [\n \"self\"\n ].concat(SUBST_INTERNALS)\n });\n const SUBST_AND_COMMENTS = [].concat(COMMENT, SUBST.contains);\n const PARAMS_CONTAINS = SUBST_AND_COMMENTS.concat([\n // eat recursive parens in sub expressions\n {\n begin: /(\\s*)\\(/,\n end: /\\)/,\n keywords: KEYWORDS$1,\n contains: [\"self\"].concat(SUBST_AND_COMMENTS)\n }\n ]);\n const PARAMS = {\n className: 'params',\n // convert this to negative lookbehind in v12\n begin: /(\\s*)\\(/, // to match the parms with\n end: /\\)/,\n excludeBegin: true,\n excludeEnd: true,\n keywords: KEYWORDS$1,\n contains: PARAMS_CONTAINS\n };\n\n // ES6 classes\n const CLASS_OR_EXTENDS = {\n variants: [\n // class Car extends vehicle\n {\n match: [\n /class/,\n /\\s+/,\n IDENT_RE$1,\n /\\s+/,\n /extends/,\n /\\s+/,\n regex.concat(IDENT_RE$1, \"(\", regex.concat(/\\./, IDENT_RE$1), \")*\")\n ],\n scope: {\n 1: \"keyword\",\n 3: \"title.class\",\n 5: \"keyword\",\n 7: \"title.class.inherited\"\n }\n },\n // class Car\n {\n match: [\n /class/,\n /\\s+/,\n IDENT_RE$1\n ],\n scope: {\n 1: \"keyword\",\n 3: \"title.class\"\n }\n },\n\n ]\n };\n\n const CLASS_REFERENCE = {\n relevance: 0,\n match:\n regex.either(\n // Hard coded exceptions\n /\\bJSON/,\n // Float32Array, OutT\n /\\b[A-Z][a-z]+([A-Z][a-z]*|\\d)*/,\n // CSSFactory, CSSFactoryT\n /\\b[A-Z]{2,}([A-Z][a-z]+|\\d)+([A-Z][a-z]*)*/,\n // FPs, FPsT\n /\\b[A-Z]{2,}[a-z]+([A-Z][a-z]+|\\d)*([A-Z][a-z]*)*/,\n // P\n // single letters are not highlighted\n // BLAH\n // this will be flagged as a UPPER_CASE_CONSTANT instead\n ),\n className: \"title.class\",\n keywords: {\n _: [\n // se we still get relevance credit for JS library classes\n ...TYPES,\n ...ERROR_TYPES\n ]\n }\n };\n\n const USE_STRICT = {\n label: \"use_strict\",\n className: 'meta',\n relevance: 10,\n begin: /^\\s*['\"]use (strict|asm)['\"]/\n };\n\n const FUNCTION_DEFINITION = {\n variants: [\n {\n match: [\n /function/,\n /\\s+/,\n IDENT_RE$1,\n /(?=\\s*\\()/\n ]\n },\n // anonymous function\n {\n match: [\n /function/,\n /\\s*(?=\\()/\n ]\n }\n ],\n className: {\n 1: \"keyword\",\n 3: \"title.function\"\n },\n label: \"func.def\",\n contains: [ PARAMS ],\n illegal: /%/\n };\n\n const UPPER_CASE_CONSTANT = {\n relevance: 0,\n match: /\\b[A-Z][A-Z_0-9]+\\b/,\n className: \"variable.constant\"\n };\n\n function noneOf(list) {\n return regex.concat(\"(?!\", list.join(\"|\"), \")\");\n }\n\n const FUNCTION_CALL = {\n match: regex.concat(\n /\\b/,\n noneOf([\n ...BUILT_IN_GLOBALS,\n \"super\",\n \"import\"\n ].map(x => `${x}\\\\s*\\\\(`)),\n IDENT_RE$1, regex.lookahead(/\\s*\\(/)),\n className: \"title.function\",\n relevance: 0\n };\n\n const PROPERTY_ACCESS = {\n begin: regex.concat(/\\./, regex.lookahead(\n regex.concat(IDENT_RE$1, /(?![0-9A-Za-z$_(])/)\n )),\n end: IDENT_RE$1,\n excludeBegin: true,\n keywords: \"prototype\",\n className: \"property\",\n relevance: 0\n };\n\n const GETTER_OR_SETTER = {\n match: [\n /get|set/,\n /\\s+/,\n IDENT_RE$1,\n /(?=\\()/\n ],\n className: {\n 1: \"keyword\",\n 3: \"title.function\"\n },\n contains: [\n { // eat to avoid empty params\n begin: /\\(\\)/\n },\n PARAMS\n ]\n };\n\n const FUNC_LEAD_IN_RE = '(\\\\(' +\n '[^()]*(\\\\(' +\n '[^()]*(\\\\(' +\n '[^()]*' +\n '\\\\)[^()]*)*' +\n '\\\\)[^()]*)*' +\n '\\\\)|' + hljs.UNDERSCORE_IDENT_RE + ')\\\\s*=>';\n\n const FUNCTION_VARIABLE = {\n match: [\n /const|var|let/, /\\s+/,\n IDENT_RE$1, /\\s*/,\n /=\\s*/,\n /(async\\s*)?/, // async is optional\n regex.lookahead(FUNC_LEAD_IN_RE)\n ],\n keywords: \"async\",\n className: {\n 1: \"keyword\",\n 3: \"title.function\"\n },\n contains: [\n PARAMS\n ]\n };\n\n return {\n name: 'JavaScript',\n aliases: ['js', 'jsx', 'mjs', 'cjs'],\n keywords: KEYWORDS$1,\n // this will be extended by TypeScript\n exports: { PARAMS_CONTAINS, CLASS_REFERENCE },\n illegal: /#(?![$_A-z])/,\n contains: [\n hljs.SHEBANG({\n label: \"shebang\",\n binary: \"node\",\n relevance: 5\n }),\n USE_STRICT,\n hljs.APOS_STRING_MODE,\n hljs.QUOTE_STRING_MODE,\n HTML_TEMPLATE,\n CSS_TEMPLATE,\n GRAPHQL_TEMPLATE,\n TEMPLATE_STRING,\n COMMENT,\n // Skip numbers when they are part of a variable name\n { match: /\\$\\d+/ },\n NUMBER,\n CLASS_REFERENCE,\n {\n scope: 'attr',\n match: IDENT_RE$1 + regex.lookahead(':'),\n relevance: 0\n },\n FUNCTION_VARIABLE,\n { // \"value\" container\n begin: '(' + hljs.RE_STARTERS_RE + '|\\\\b(case|return|throw)\\\\b)\\\\s*',\n keywords: 'return throw case',\n relevance: 0,\n contains: [\n COMMENT,\n hljs.REGEXP_MODE,\n {\n className: 'function',\n // we have to count the parens to make sure we actually have the\n // correct bounding ( ) before the =>. There could be any number of\n // sub-expressions inside also surrounded by parens.\n begin: FUNC_LEAD_IN_RE,\n returnBegin: true,\n end: '\\\\s*=>',\n contains: [\n {\n className: 'params',\n variants: [\n {\n begin: hljs.UNDERSCORE_IDENT_RE,\n relevance: 0\n },\n {\n className: null,\n begin: /\\(\\s*\\)/,\n skip: true\n },\n {\n begin: /(\\s*)\\(/,\n end: /\\)/,\n excludeBegin: true,\n excludeEnd: true,\n keywords: KEYWORDS$1,\n contains: PARAMS_CONTAINS\n }\n ]\n }\n ]\n },\n { // could be a comma delimited list of params to a function call\n begin: /,/,\n relevance: 0\n },\n {\n match: /\\s+/,\n relevance: 0\n },\n { // JSX\n variants: [\n { begin: FRAGMENT.begin, end: FRAGMENT.end },\n { match: XML_SELF_CLOSING },\n {\n begin: XML_TAG.begin,\n // we carefully check the opening tag to see if it truly\n // is a tag and not a false positive\n 'on:begin': XML_TAG.isTrulyOpeningTag,\n end: XML_TAG.end\n }\n ],\n subLanguage: 'xml',\n contains: [\n {\n begin: XML_TAG.begin,\n end: XML_TAG.end,\n skip: true,\n contains: ['self']\n }\n ]\n }\n ],\n },\n FUNCTION_DEFINITION,\n {\n // prevent this from getting swallowed up by function\n // since they appear \"function like\"\n beginKeywords: \"while if switch catch for\"\n },\n {\n // we have to count the parens to make sure we actually have the correct\n // bounding ( ). There could be any number of sub-expressions inside\n // also surrounded by parens.\n begin: '\\\\b(?!function)' + hljs.UNDERSCORE_IDENT_RE +\n '\\\\(' + // first parens\n '[^()]*(\\\\(' +\n '[^()]*(\\\\(' +\n '[^()]*' +\n '\\\\)[^()]*)*' +\n '\\\\)[^()]*)*' +\n '\\\\)\\\\s*\\\\{', // end parens\n returnBegin:true,\n label: \"func.def\",\n contains: [\n PARAMS,\n hljs.inherit(hljs.TITLE_MODE, { begin: IDENT_RE$1, className: \"title.function\" })\n ]\n },\n // catch ... so it won't trigger the property rule below\n {\n match: /\\.\\.\\./,\n relevance: 0\n },\n PROPERTY_ACCESS,\n // hack: prevents detection of keywords in some circumstances\n // .keyword()\n // $keyword = x\n {\n match: '\\\\$' + IDENT_RE$1,\n relevance: 0\n },\n {\n match: [ /\\bconstructor(?=\\s*\\()/ ],\n className: { 1: \"title.function\" },\n contains: [ PARAMS ]\n },\n FUNCTION_CALL,\n UPPER_CASE_CONSTANT,\n CLASS_OR_EXTENDS,\n GETTER_OR_SETTER,\n {\n match: /\\$[(.]/ // relevance booster for a pattern common to JS libs: `$(something)` and `$.something`\n }\n ]\n };\n}\n\nmodule.exports = javascript;\n", "const MODES = (hljs) => {\n return {\n IMPORTANT: {\n scope: 'meta',\n begin: '!important'\n },\n BLOCK_COMMENT: hljs.C_BLOCK_COMMENT_MODE,\n HEXCOLOR: {\n scope: 'number',\n begin: /#(([0-9a-fA-F]{3,4})|(([0-9a-fA-F]{2}){3,4}))\\b/\n },\n FUNCTION_DISPATCH: {\n className: \"built_in\",\n begin: /[\\w-]+(?=\\()/\n },\n ATTRIBUTE_SELECTOR_MODE: {\n scope: 'selector-attr',\n begin: /\\[/,\n end: /\\]/,\n illegal: '$',\n contains: [\n hljs.APOS_STRING_MODE,\n hljs.QUOTE_STRING_MODE\n ]\n },\n CSS_NUMBER_MODE: {\n scope: 'number',\n begin: hljs.NUMBER_RE + '(' +\n '%|em|ex|ch|rem' +\n '|vw|vh|vmin|vmax' +\n '|cm|mm|in|pt|pc|px' +\n '|deg|grad|rad|turn' +\n '|s|ms' +\n '|Hz|kHz' +\n '|dpi|dpcm|dppx' +\n ')?',\n relevance: 0\n },\n CSS_VARIABLE: {\n className: \"attr\",\n begin: /--[A-Za-z_][A-Za-z0-9_-]*/\n }\n };\n};\n\nconst HTML_TAGS = [\n 'a',\n 'abbr',\n 'address',\n 'article',\n 'aside',\n 'audio',\n 'b',\n 'blockquote',\n 'body',\n 'button',\n 'canvas',\n 'caption',\n 'cite',\n 'code',\n 'dd',\n 'del',\n 'details',\n 'dfn',\n 'div',\n 'dl',\n 'dt',\n 'em',\n 'fieldset',\n 'figcaption',\n 'figure',\n 'footer',\n 'form',\n 'h1',\n 'h2',\n 'h3',\n 'h4',\n 'h5',\n 'h6',\n 'header',\n 'hgroup',\n 'html',\n 'i',\n 'iframe',\n 'img',\n 'input',\n 'ins',\n 'kbd',\n 'label',\n 'legend',\n 'li',\n 'main',\n 'mark',\n 'menu',\n 'nav',\n 'object',\n 'ol',\n 'optgroup',\n 'option',\n 'p',\n 'picture',\n 'q',\n 'quote',\n 'samp',\n 'section',\n 'select',\n 'source',\n 'span',\n 'strong',\n 'summary',\n 'sup',\n 'table',\n 'tbody',\n 'td',\n 'textarea',\n 'tfoot',\n 'th',\n 'thead',\n 'time',\n 'tr',\n 'ul',\n 'var',\n 'video'\n];\n\nconst SVG_TAGS = [\n 'defs',\n 'g',\n 'marker',\n 'mask',\n 'pattern',\n 'svg',\n 'switch',\n 'symbol',\n 'feBlend',\n 'feColorMatrix',\n 'feComponentTransfer',\n 'feComposite',\n 'feConvolveMatrix',\n 'feDiffuseLighting',\n 'feDisplacementMap',\n 'feFlood',\n 'feGaussianBlur',\n 'feImage',\n 'feMerge',\n 'feMorphology',\n 'feOffset',\n 'feSpecularLighting',\n 'feTile',\n 'feTurbulence',\n 'linearGradient',\n 'radialGradient',\n 'stop',\n 'circle',\n 'ellipse',\n 'image',\n 'line',\n 'path',\n 'polygon',\n 'polyline',\n 'rect',\n 'text',\n 'use',\n 'textPath',\n 'tspan',\n 'foreignObject',\n 'clipPath'\n];\n\nconst TAGS = [\n ...HTML_TAGS,\n ...SVG_TAGS,\n];\n\n// Sorting, then reversing makes sure longer attributes/elements like\n// `font-weight` are matched fully instead of getting false positives on say `font`\n\nconst MEDIA_FEATURES = [\n 'any-hover',\n 'any-pointer',\n 'aspect-ratio',\n 'color',\n 'color-gamut',\n 'color-index',\n 'device-aspect-ratio',\n 'device-height',\n 'device-width',\n 'display-mode',\n 'forced-colors',\n 'grid',\n 'height',\n 'hover',\n 'inverted-colors',\n 'monochrome',\n 'orientation',\n 'overflow-block',\n 'overflow-inline',\n 'pointer',\n 'prefers-color-scheme',\n 'prefers-contrast',\n 'prefers-reduced-motion',\n 'prefers-reduced-transparency',\n 'resolution',\n 'scan',\n 'scripting',\n 'update',\n 'width',\n // TODO: find a better solution?\n 'min-width',\n 'max-width',\n 'min-height',\n 'max-height'\n].sort().reverse();\n\n// https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes\nconst PSEUDO_CLASSES = [\n 'active',\n 'any-link',\n 'blank',\n 'checked',\n 'current',\n 'default',\n 'defined',\n 'dir', // dir()\n 'disabled',\n 'drop',\n 'empty',\n 'enabled',\n 'first',\n 'first-child',\n 'first-of-type',\n 'fullscreen',\n 'future',\n 'focus',\n 'focus-visible',\n 'focus-within',\n 'has', // has()\n 'host', // host or host()\n 'host-context', // host-context()\n 'hover',\n 'indeterminate',\n 'in-range',\n 'invalid',\n 'is', // is()\n 'lang', // lang()\n 'last-child',\n 'last-of-type',\n 'left',\n 'link',\n 'local-link',\n 'not', // not()\n 'nth-child', // nth-child()\n 'nth-col', // nth-col()\n 'nth-last-child', // nth-last-child()\n 'nth-last-col', // nth-last-col()\n 'nth-last-of-type', //nth-last-of-type()\n 'nth-of-type', //nth-of-type()\n 'only-child',\n 'only-of-type',\n 'optional',\n 'out-of-range',\n 'past',\n 'placeholder-shown',\n 'read-only',\n 'read-write',\n 'required',\n 'right',\n 'root',\n 'scope',\n 'target',\n 'target-within',\n 'user-invalid',\n 'valid',\n 'visited',\n 'where' // where()\n].sort().reverse();\n\n// https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements\nconst PSEUDO_ELEMENTS = [\n 'after',\n 'backdrop',\n 'before',\n 'cue',\n 'cue-region',\n 'first-letter',\n 'first-line',\n 'grammar-error',\n 'marker',\n 'part',\n 'placeholder',\n 'selection',\n 'slotted',\n 'spelling-error'\n].sort().reverse();\n\nconst ATTRIBUTES = [\n 'accent-color',\n 'align-content',\n 'align-items',\n 'align-self',\n 'alignment-baseline',\n 'all',\n 'anchor-name',\n 'animation',\n 'animation-composition',\n 'animation-delay',\n 'animation-direction',\n 'animation-duration',\n 'animation-fill-mode',\n 'animation-iteration-count',\n 'animation-name',\n 'animation-play-state',\n 'animation-range',\n 'animation-range-end',\n 'animation-range-start',\n 'animation-timeline',\n 'animation-timing-function',\n 'appearance',\n 'aspect-ratio',\n 'backdrop-filter',\n 'backface-visibility',\n 'background',\n 'background-attachment',\n 'background-blend-mode',\n 'background-clip',\n 'background-color',\n 'background-image',\n 'background-origin',\n 'background-position',\n 'background-position-x',\n 'background-position-y',\n 'background-repeat',\n 'background-size',\n 'baseline-shift',\n 'block-size',\n 'border',\n 'border-block',\n 'border-block-color',\n 'border-block-end',\n 'border-block-end-color',\n 'border-block-end-style',\n 'border-block-end-width',\n 'border-block-start',\n 'border-block-start-color',\n 'border-block-start-style',\n 'border-block-start-width',\n 'border-block-style',\n 'border-block-width',\n 'border-bottom',\n 'border-bottom-color',\n 'border-bottom-left-radius',\n 'border-bottom-right-radius',\n 'border-bottom-style',\n 'border-bottom-width',\n 'border-collapse',\n 'border-color',\n 'border-end-end-radius',\n 'border-end-start-radius',\n 'border-image',\n 'border-image-outset',\n 'border-image-repeat',\n 'border-image-slice',\n 'border-image-source',\n 'border-image-width',\n 'border-inline',\n 'border-inline-color',\n 'border-inline-end',\n 'border-inline-end-color',\n 'border-inline-end-style',\n 'border-inline-end-width',\n 'border-inline-start',\n 'border-inline-start-color',\n 'border-inline-start-style',\n 'border-inline-start-width',\n 'border-inline-style',\n 'border-inline-width',\n 'border-left',\n 'border-left-color',\n 'border-left-style',\n 'border-left-width',\n 'border-radius',\n 'border-right',\n 'border-right-color',\n 'border-right-style',\n 'border-right-width',\n 'border-spacing',\n 'border-start-end-radius',\n 'border-start-start-radius',\n 'border-style',\n 'border-top',\n 'border-top-color',\n 'border-top-left-radius',\n 'border-top-right-radius',\n 'border-top-style',\n 'border-top-width',\n 'border-width',\n 'bottom',\n 'box-align',\n 'box-decoration-break',\n 'box-direction',\n 'box-flex',\n 'box-flex-group',\n 'box-lines',\n 'box-ordinal-group',\n 'box-orient',\n 'box-pack',\n 'box-shadow',\n 'box-sizing',\n 'break-after',\n 'break-before',\n 'break-inside',\n 'caption-side',\n 'caret-color',\n 'clear',\n 'clip',\n 'clip-path',\n 'clip-rule',\n 'color',\n 'color-interpolation',\n 'color-interpolation-filters',\n 'color-profile',\n 'color-rendering',\n 'color-scheme',\n 'column-count',\n 'column-fill',\n 'column-gap',\n 'column-rule',\n 'column-rule-color',\n 'column-rule-style',\n 'column-rule-width',\n 'column-span',\n 'column-width',\n 'columns',\n 'contain',\n 'contain-intrinsic-block-size',\n 'contain-intrinsic-height',\n 'contain-intrinsic-inline-size',\n 'contain-intrinsic-size',\n 'contain-intrinsic-width',\n 'container',\n 'container-name',\n 'container-type',\n 'content',\n 'content-visibility',\n 'counter-increment',\n 'counter-reset',\n 'counter-set',\n 'cue',\n 'cue-after',\n 'cue-before',\n 'cursor',\n 'cx',\n 'cy',\n 'direction',\n 'display',\n 'dominant-baseline',\n 'empty-cells',\n 'enable-background',\n 'field-sizing',\n 'fill',\n 'fill-opacity',\n 'fill-rule',\n 'filter',\n 'flex',\n 'flex-basis',\n 'flex-direction',\n 'flex-flow',\n 'flex-grow',\n 'flex-shrink',\n 'flex-wrap',\n 'float',\n 'flood-color',\n 'flood-opacity',\n 'flow',\n 'font',\n 'font-display',\n 'font-family',\n 'font-feature-settings',\n 'font-kerning',\n 'font-language-override',\n 'font-optical-sizing',\n 'font-palette',\n 'font-size',\n 'font-size-adjust',\n 'font-smooth',\n 'font-smoothing',\n 'font-stretch',\n 'font-style',\n 'font-synthesis',\n 'font-synthesis-position',\n 'font-synthesis-small-caps',\n 'font-synthesis-style',\n 'font-synthesis-weight',\n 'font-variant',\n 'font-variant-alternates',\n 'font-variant-caps',\n 'font-variant-east-asian',\n 'font-variant-emoji',\n 'font-variant-ligatures',\n 'font-variant-numeric',\n 'font-variant-position',\n 'font-variation-settings',\n 'font-weight',\n 'forced-color-adjust',\n 'gap',\n 'glyph-orientation-horizontal',\n 'glyph-orientation-vertical',\n 'grid',\n 'grid-area',\n 'grid-auto-columns',\n 'grid-auto-flow',\n 'grid-auto-rows',\n 'grid-column',\n 'grid-column-end',\n 'grid-column-start',\n 'grid-gap',\n 'grid-row',\n 'grid-row-end',\n 'grid-row-start',\n 'grid-template',\n 'grid-template-areas',\n 'grid-template-columns',\n 'grid-template-rows',\n 'hanging-punctuation',\n 'height',\n 'hyphenate-character',\n 'hyphenate-limit-chars',\n 'hyphens',\n 'icon',\n 'image-orientation',\n 'image-rendering',\n 'image-resolution',\n 'ime-mode',\n 'initial-letter',\n 'initial-letter-align',\n 'inline-size',\n 'inset',\n 'inset-area',\n 'inset-block',\n 'inset-block-end',\n 'inset-block-start',\n 'inset-inline',\n 'inset-inline-end',\n 'inset-inline-start',\n 'isolation',\n 'justify-content',\n 'justify-items',\n 'justify-self',\n 'kerning',\n 'left',\n 'letter-spacing',\n 'lighting-color',\n 'line-break',\n 'line-height',\n 'line-height-step',\n 'list-style',\n 'list-style-image',\n 'list-style-position',\n 'list-style-type',\n 'margin',\n 'margin-block',\n 'margin-block-end',\n 'margin-block-start',\n 'margin-bottom',\n 'margin-inline',\n 'margin-inline-end',\n 'margin-inline-start',\n 'margin-left',\n 'margin-right',\n 'margin-top',\n 'margin-trim',\n 'marker',\n 'marker-end',\n 'marker-mid',\n 'marker-start',\n 'marks',\n 'mask',\n 'mask-border',\n 'mask-border-mode',\n 'mask-border-outset',\n 'mask-border-repeat',\n 'mask-border-slice',\n 'mask-border-source',\n 'mask-border-width',\n 'mask-clip',\n 'mask-composite',\n 'mask-image',\n 'mask-mode',\n 'mask-origin',\n 'mask-position',\n 'mask-repeat',\n 'mask-size',\n 'mask-type',\n 'masonry-auto-flow',\n 'math-depth',\n 'math-shift',\n 'math-style',\n 'max-block-size',\n 'max-height',\n 'max-inline-size',\n 'max-width',\n 'min-block-size',\n 'min-height',\n 'min-inline-size',\n 'min-width',\n 'mix-blend-mode',\n 'nav-down',\n 'nav-index',\n 'nav-left',\n 'nav-right',\n 'nav-up',\n 'none',\n 'normal',\n 'object-fit',\n 'object-position',\n 'offset',\n 'offset-anchor',\n 'offset-distance',\n 'offset-path',\n 'offset-position',\n 'offset-rotate',\n 'opacity',\n 'order',\n 'orphans',\n 'outline',\n 'outline-color',\n 'outline-offset',\n 'outline-style',\n 'outline-width',\n 'overflow',\n 'overflow-anchor',\n 'overflow-block',\n 'overflow-clip-margin',\n 'overflow-inline',\n 'overflow-wrap',\n 'overflow-x',\n 'overflow-y',\n 'overlay',\n 'overscroll-behavior',\n 'overscroll-behavior-block',\n 'overscroll-behavior-inline',\n 'overscroll-behavior-x',\n 'overscroll-behavior-y',\n 'padding',\n 'padding-block',\n 'padding-block-end',\n 'padding-block-start',\n 'padding-bottom',\n 'padding-inline',\n 'padding-inline-end',\n 'padding-inline-start',\n 'padding-left',\n 'padding-right',\n 'padding-top',\n 'page',\n 'page-break-after',\n 'page-break-before',\n 'page-break-inside',\n 'paint-order',\n 'pause',\n 'pause-after',\n 'pause-before',\n 'perspective',\n 'perspective-origin',\n 'place-content',\n 'place-items',\n 'place-self',\n 'pointer-events',\n 'position',\n 'position-anchor',\n 'position-visibility',\n 'print-color-adjust',\n 'quotes',\n 'r',\n 'resize',\n 'rest',\n 'rest-after',\n 'rest-before',\n 'right',\n 'rotate',\n 'row-gap',\n 'ruby-align',\n 'ruby-position',\n 'scale',\n 'scroll-behavior',\n 'scroll-margin',\n 'scroll-margin-block',\n 'scroll-margin-block-end',\n 'scroll-margin-block-start',\n 'scroll-margin-bottom',\n 'scroll-margin-inline',\n 'scroll-margin-inline-end',\n 'scroll-margin-inline-start',\n 'scroll-margin-left',\n 'scroll-margin-right',\n 'scroll-margin-top',\n 'scroll-padding',\n 'scroll-padding-block',\n 'scroll-padding-block-end',\n 'scroll-padding-block-start',\n 'scroll-padding-bottom',\n 'scroll-padding-inline',\n 'scroll-padding-inline-end',\n 'scroll-padding-inline-start',\n 'scroll-padding-left',\n 'scroll-padding-right',\n 'scroll-padding-top',\n 'scroll-snap-align',\n 'scroll-snap-stop',\n 'scroll-snap-type',\n 'scroll-timeline',\n 'scroll-timeline-axis',\n 'scroll-timeline-name',\n 'scrollbar-color',\n 'scrollbar-gutter',\n 'scrollbar-width',\n 'shape-image-threshold',\n 'shape-margin',\n 'shape-outside',\n 'shape-rendering',\n 'speak',\n 'speak-as',\n 'src', // @font-face\n 'stop-color',\n 'stop-opacity',\n 'stroke',\n 'stroke-dasharray',\n 'stroke-dashoffset',\n 'stroke-linecap',\n 'stroke-linejoin',\n 'stroke-miterlimit',\n 'stroke-opacity',\n 'stroke-width',\n 'tab-size',\n 'table-layout',\n 'text-align',\n 'text-align-all',\n 'text-align-last',\n 'text-anchor',\n 'text-combine-upright',\n 'text-decoration',\n 'text-decoration-color',\n 'text-decoration-line',\n 'text-decoration-skip',\n 'text-decoration-skip-ink',\n 'text-decoration-style',\n 'text-decoration-thickness',\n 'text-emphasis',\n 'text-emphasis-color',\n 'text-emphasis-position',\n 'text-emphasis-style',\n 'text-indent',\n 'text-justify',\n 'text-orientation',\n 'text-overflow',\n 'text-rendering',\n 'text-shadow',\n 'text-size-adjust',\n 'text-transform',\n 'text-underline-offset',\n 'text-underline-position',\n 'text-wrap',\n 'text-wrap-mode',\n 'text-wrap-style',\n 'timeline-scope',\n 'top',\n 'touch-action',\n 'transform',\n 'transform-box',\n 'transform-origin',\n 'transform-style',\n 'transition',\n 'transition-behavior',\n 'transition-delay',\n 'transition-duration',\n 'transition-property',\n 'transition-timing-function',\n 'translate',\n 'unicode-bidi',\n 'user-modify',\n 'user-select',\n 'vector-effect',\n 'vertical-align',\n 'view-timeline',\n 'view-timeline-axis',\n 'view-timeline-inset',\n 'view-timeline-name',\n 'view-transition-name',\n 'visibility',\n 'voice-balance',\n 'voice-duration',\n 'voice-family',\n 'voice-pitch',\n 'voice-range',\n 'voice-rate',\n 'voice-stress',\n 'voice-volume',\n 'white-space',\n 'white-space-collapse',\n 'widows',\n 'width',\n 'will-change',\n 'word-break',\n 'word-spacing',\n 'word-wrap',\n 'writing-mode',\n 'x',\n 'y',\n 'z-index',\n 'zoom'\n].sort().reverse();\n\n/*\nLanguage: CSS\nCategory: common, css, web\nWebsite: https://developer.mozilla.org/en-US/docs/Web/CSS\n*/\n\n\n/** @type LanguageFn */\nfunction css(hljs) {\n const regex = hljs.regex;\n const modes = MODES(hljs);\n const VENDOR_PREFIX = { begin: /-(webkit|moz|ms|o)-(?=[a-z])/ };\n const AT_MODIFIERS = \"and or not only\";\n const AT_PROPERTY_RE = /@-?\\w[\\w]*(-\\w+)*/; // @-webkit-keyframes\n const IDENT_RE = '[a-zA-Z-][a-zA-Z0-9_-]*';\n const STRINGS = [\n hljs.APOS_STRING_MODE,\n hljs.QUOTE_STRING_MODE\n ];\n\n return {\n name: 'CSS',\n case_insensitive: true,\n illegal: /[=|'\\$]/,\n keywords: { keyframePosition: \"from to\" },\n classNameAliases: {\n // for visual continuity with `tag {}` and because we\n // don't have a great class for this?\n keyframePosition: \"selector-tag\" },\n contains: [\n modes.BLOCK_COMMENT,\n VENDOR_PREFIX,\n // to recognize keyframe 40% etc which are outside the scope of our\n // attribute value mode\n modes.CSS_NUMBER_MODE,\n {\n className: 'selector-id',\n begin: /#[A-Za-z0-9_-]+/,\n relevance: 0\n },\n {\n className: 'selector-class',\n begin: '\\\\.' + IDENT_RE,\n relevance: 0\n },\n modes.ATTRIBUTE_SELECTOR_MODE,\n {\n className: 'selector-pseudo',\n variants: [\n { begin: ':(' + PSEUDO_CLASSES.join('|') + ')' },\n { begin: ':(:)?(' + PSEUDO_ELEMENTS.join('|') + ')' }\n ]\n },\n // we may actually need this (12/2020)\n // { // pseudo-selector params\n // begin: /\\(/,\n // end: /\\)/,\n // contains: [ hljs.CSS_NUMBER_MODE ]\n // },\n modes.CSS_VARIABLE,\n {\n className: 'attribute',\n begin: '\\\\b(' + ATTRIBUTES.join('|') + ')\\\\b'\n },\n // attribute values\n {\n begin: /:/,\n end: /[;}{]/,\n contains: [\n modes.BLOCK_COMMENT,\n modes.HEXCOLOR,\n modes.IMPORTANT,\n modes.CSS_NUMBER_MODE,\n ...STRINGS,\n // needed to highlight these as strings and to avoid issues with\n // illegal characters that might be inside urls that would tigger the\n // languages illegal stack\n {\n begin: /(url|data-uri)\\(/,\n end: /\\)/,\n relevance: 0, // from keywords\n keywords: { built_in: \"url data-uri\" },\n contains: [\n ...STRINGS,\n {\n className: \"string\",\n // any character other than `)` as in `url()` will be the start\n // of a string, which ends with `)` (from the parent mode)\n begin: /[^)]/,\n endsWithParent: true,\n excludeEnd: true\n }\n ]\n },\n modes.FUNCTION_DISPATCH\n ]\n },\n {\n begin: regex.lookahead(/@/),\n end: '[{;]',\n relevance: 0,\n illegal: /:/, // break on Less variables @var: ...\n contains: [\n {\n className: 'keyword',\n begin: AT_PROPERTY_RE\n },\n {\n begin: /\\s/,\n endsWithParent: true,\n excludeEnd: true,\n relevance: 0,\n keywords: {\n $pattern: /[a-z-]+/,\n keyword: AT_MODIFIERS,\n attribute: MEDIA_FEATURES.join(\" \")\n },\n contains: [\n {\n begin: /[a-z-]+(?=:)/,\n className: \"attribute\"\n },\n ...STRINGS,\n modes.CSS_NUMBER_MODE\n ]\n }\n ]\n },\n {\n className: 'selector-tag',\n begin: '\\\\b(' + TAGS.join('|') + ')\\\\b'\n }\n ]\n };\n}\n\nmodule.exports = css;\n", "/*\nLanguage: Plain text\nAuthor: Egor Rogov (e.rogov@postgrespro.ru)\nDescription: Plain text without any highlighting.\nCategory: common\n*/\n\nfunction plaintext(hljs) {\n return {\n name: 'Plain text',\n aliases: [\n 'text',\n 'txt'\n ],\n disableAutodetect: true\n };\n}\n\nmodule.exports = plaintext;\n", "if (!Array.prototype.find) {\n Array.prototype.find = function(predicate) {\n if (this === null) {\n throw new TypeError('Array.prototype.find called on null or undefined')\n }\n if (typeof predicate !== 'function') {\n throw new TypeError('predicate must be a function')\n }\n var list = Object(this)\n var length = list.length >>> 0\n var thisArg = arguments[1]\n var value\n\n for (var i = 0; i < length; i++) {\n value = list[i]\n if (predicate.call(thisArg, value, i, list)) {\n return value\n }\n }\n return undefined\n }\n}\n\nif (window && typeof window.CustomEvent !== \"function\") {\n function CustomEvent(event, params) {\n params = params || {\n bubbles: false,\n cancelable: false,\n detail: undefined\n }\n var evt = document.createEvent('CustomEvent')\n evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail)\n return evt\n }\n\n if (typeof window.Event !== 'undefined') {\n CustomEvent.prototype = window.Event.prototype\n }\n\n window.CustomEvent = CustomEvent\n}", "class TributeEvents {\n constructor(tribute) {\n this.tribute = tribute;\n this.tribute.events = this;\n }\n\n static keys() {\n return [\n {\n key: 9,\n value: \"TAB\"\n },\n {\n key: 8,\n value: \"DELETE\"\n },\n {\n key: 13,\n value: \"ENTER\"\n },\n {\n key: 27,\n value: \"ESCAPE\"\n },\n {\n key: 32,\n value: \"SPACE\"\n },\n {\n key: 38,\n value: \"UP\"\n },\n {\n key: 40,\n value: \"DOWN\"\n }\n ];\n }\n\n bind(element) {\n element.boundKeydown = this.keydown.bind(element, this);\n element.boundKeyup = this.keyup.bind(element, this);\n element.boundInput = this.input.bind(element, this);\n\n element.addEventListener(\"keydown\", element.boundKeydown, false);\n element.addEventListener(\"keyup\", element.boundKeyup, false);\n element.addEventListener(\"input\", element.boundInput, false);\n }\n\n unbind(element) {\n element.removeEventListener(\"keydown\", element.boundKeydown, false);\n element.removeEventListener(\"keyup\", element.boundKeyup, false);\n element.removeEventListener(\"input\", element.boundInput, false);\n\n delete element.boundKeydown;\n delete element.boundKeyup;\n delete element.boundInput;\n }\n\n keydown(instance, event) {\n if (instance.shouldDeactivate(event)) {\n instance.tribute.isActive = false;\n instance.tribute.hideMenu();\n }\n\n let element = this;\n instance.commandEvent = false;\n\n TributeEvents.keys().forEach(o => {\n if (o.key === event.keyCode) {\n instance.commandEvent = true;\n instance.callbacks()[o.value.toLowerCase()](event, element);\n }\n });\n }\n\n input(instance, event) {\n instance.inputEvent = true;\n instance.keyup.call(this, instance, event);\n }\n\n click(instance, event) {\n let tribute = instance.tribute;\n if (tribute.menu && tribute.menu.contains(event.target)) {\n let li = event.target;\n event.preventDefault();\n event.stopPropagation();\n while (li.nodeName.toLowerCase() !== \"li\") {\n li = li.parentNode;\n if (!li || li === tribute.menu) {\n throw new Error(\"cannot find the
  • container for the click\");\n }\n }\n tribute.selectItemAtIndex(li.getAttribute(\"data-index\"), event);\n tribute.hideMenu();\n\n // TODO: should fire with externalTrigger and target is outside of menu\n } else if (tribute.current.element && !tribute.current.externalTrigger) {\n tribute.current.externalTrigger = false;\n setTimeout(() => tribute.hideMenu());\n }\n }\n\n keyup(instance, event) {\n if (instance.inputEvent) {\n instance.inputEvent = false;\n }\n instance.updateSelection(this);\n\n if (event.keyCode === 27) return;\n\n if (!instance.tribute.allowSpaces && instance.tribute.hasTrailingSpace) {\n instance.tribute.hasTrailingSpace = false;\n instance.commandEvent = true;\n instance.callbacks()[\"space\"](event, this);\n return;\n }\n\n if (!instance.tribute.isActive) {\n if (instance.tribute.autocompleteMode) {\n instance.callbacks().triggerChar(event, this, \"\");\n } else {\n let keyCode = instance.getKeyCode(instance, this, event);\n\n if (isNaN(keyCode) || !keyCode) return;\n\n let trigger = instance.tribute.triggers().find(trigger => {\n return trigger.charCodeAt(0) === keyCode;\n });\n\n if (typeof trigger !== \"undefined\") {\n instance.callbacks().triggerChar(event, this, trigger);\n }\n }\n }\n\n if (\n instance.tribute.current.mentionText.length <\n instance.tribute.current.collection.menuShowMinLength\n ) {\n return;\n }\n\n if (\n ((instance.tribute.current.trigger ||\n instance.tribute.autocompleteMode) &&\n instance.commandEvent === false) ||\n (instance.tribute.isActive && event.keyCode === 8)\n ) {\n instance.tribute.showMenuFor(this, true);\n }\n }\n\n shouldDeactivate(event) {\n if (!this.tribute.isActive) return false;\n\n if (this.tribute.current.mentionText.length === 0) {\n let eventKeyPressed = false;\n TributeEvents.keys().forEach(o => {\n if (event.keyCode === o.key) eventKeyPressed = true;\n });\n\n return !eventKeyPressed;\n }\n\n return false;\n }\n\n getKeyCode(instance, el, event) {\n let char;\n let tribute = instance.tribute;\n let info = tribute.range.getTriggerInfo(\n false,\n tribute.hasTrailingSpace,\n true,\n tribute.allowSpaces,\n tribute.autocompleteMode\n );\n\n if (info) {\n return info.mentionTriggerChar.charCodeAt(0);\n } else {\n return false;\n }\n }\n\n updateSelection(el) {\n this.tribute.current.element = el;\n let info = this.tribute.range.getTriggerInfo(\n false,\n this.tribute.hasTrailingSpace,\n true,\n this.tribute.allowSpaces,\n this.tribute.autocompleteMode\n );\n\n if (info) {\n this.tribute.current.selectedPath = info.mentionSelectedPath;\n this.tribute.current.mentionText = info.mentionText;\n this.tribute.current.selectedOffset = info.mentionSelectedOffset;\n }\n }\n\n callbacks() {\n return {\n triggerChar: (e, el, trigger) => {\n let tribute = this.tribute;\n tribute.current.trigger = trigger;\n\n let collectionItem = tribute.collection.find(item => {\n return item.trigger === trigger;\n });\n\n tribute.current.collection = collectionItem;\n\n if (\n tribute.current.mentionText.length >=\n tribute.current.collection.menuShowMinLength &&\n tribute.inputEvent\n ) {\n tribute.showMenuFor(el, true);\n }\n },\n enter: (e, el) => {\n // choose selection\n if (this.tribute.isActive && this.tribute.current.filteredItems) {\n e.preventDefault();\n e.stopPropagation();\n setTimeout(() => {\n this.tribute.selectItemAtIndex(this.tribute.menuSelected, e);\n this.tribute.hideMenu();\n }, 0);\n }\n },\n escape: (e, el) => {\n if (this.tribute.isActive) {\n e.preventDefault();\n e.stopPropagation();\n this.tribute.isActive = false;\n this.tribute.hideMenu();\n }\n },\n tab: (e, el) => {\n // choose first match\n this.callbacks().enter(e, el);\n },\n space: (e, el) => {\n if (this.tribute.isActive) {\n if (this.tribute.spaceSelectsMatch) {\n this.callbacks().enter(e, el);\n } else if (!this.tribute.allowSpaces) {\n e.stopPropagation();\n setTimeout(() => {\n this.tribute.hideMenu();\n this.tribute.isActive = false;\n }, 0);\n }\n }\n },\n up: (e, el) => {\n // navigate up ul\n if (this.tribute.isActive && this.tribute.current.filteredItems) {\n e.preventDefault();\n e.stopPropagation();\n let count = this.tribute.current.filteredItems.length,\n selected = this.tribute.menuSelected;\n\n if (count > selected && selected > 0) {\n this.tribute.menuSelected--;\n this.setActiveLi();\n } else if (selected === 0) {\n this.tribute.menuSelected = count - 1;\n this.setActiveLi();\n this.tribute.menu.scrollTop = this.tribute.menu.scrollHeight;\n }\n }\n },\n down: (e, el) => {\n // navigate down ul\n if (this.tribute.isActive && this.tribute.current.filteredItems) {\n e.preventDefault();\n e.stopPropagation();\n let count = this.tribute.current.filteredItems.length - 1,\n selected = this.tribute.menuSelected;\n\n if (count > selected) {\n this.tribute.menuSelected++;\n this.setActiveLi();\n } else if (count === selected) {\n this.tribute.menuSelected = 0;\n this.setActiveLi();\n this.tribute.menu.scrollTop = 0;\n }\n }\n },\n delete: (e, el) => {\n if (\n this.tribute.isActive &&\n this.tribute.current.mentionText.length < 1\n ) {\n this.tribute.hideMenu();\n } else if (this.tribute.isActive) {\n this.tribute.showMenuFor(el);\n }\n }\n };\n }\n\n setActiveLi(index) {\n let lis = this.tribute.menu.querySelectorAll(\"li\"),\n length = lis.length >>> 0;\n\n if (index) this.tribute.menuSelected = parseInt(index);\n\n for (let i = 0; i < length; i++) {\n let li = lis[i];\n if (i === this.tribute.menuSelected) {\n li.classList.add(this.tribute.current.collection.selectClass);\n\n let liClientRect = li.getBoundingClientRect();\n let menuClientRect = this.tribute.menu.getBoundingClientRect();\n\n if (liClientRect.bottom > menuClientRect.bottom) {\n let scrollDistance = liClientRect.bottom - menuClientRect.bottom;\n this.tribute.menu.scrollTop += scrollDistance;\n } else if (liClientRect.top < menuClientRect.top) {\n let scrollDistance = menuClientRect.top - liClientRect.top;\n this.tribute.menu.scrollTop -= scrollDistance;\n }\n } else {\n li.classList.remove(this.tribute.current.collection.selectClass);\n }\n }\n }\n\n getFullHeight(elem, includeMargin) {\n let height = elem.getBoundingClientRect().height;\n\n if (includeMargin) {\n let style = elem.currentStyle || window.getComputedStyle(elem);\n return (\n height + parseFloat(style.marginTop) + parseFloat(style.marginBottom)\n );\n }\n\n return height;\n }\n}\n\nexport default TributeEvents;\n", "class TributeMenuEvents {\n constructor(tribute) {\n this.tribute = tribute;\n this.tribute.menuEvents = this;\n this.menu = this.tribute.menu;\n }\n\n bind(menu) {\n this.menuClickEvent = this.tribute.events.click.bind(null, this);\n this.menuContainerScrollEvent = this.debounce(\n () => {\n if (this.tribute.isActive) {\n this.tribute.showMenuFor(this.tribute.current.element, false);\n }\n },\n 300,\n false\n );\n this.windowResizeEvent = this.debounce(\n () => {\n if (this.tribute.isActive) {\n this.tribute.range.positionMenuAtCaret(true);\n }\n },\n 300,\n false\n );\n\n // fixes IE11 issues with mousedown\n this.tribute.range\n .getDocument()\n .addEventListener(\"MSPointerDown\", this.menuClickEvent, false);\n this.tribute.range\n .getDocument()\n .addEventListener(\"mousedown\", this.menuClickEvent, false);\n window.addEventListener(\"resize\", this.windowResizeEvent);\n\n if (this.menuContainer) {\n this.menuContainer.addEventListener(\n \"scroll\",\n this.menuContainerScrollEvent,\n false\n );\n } else {\n window.addEventListener(\"scroll\", this.menuContainerScrollEvent);\n }\n }\n\n unbind(menu) {\n this.tribute.range\n .getDocument()\n .removeEventListener(\"mousedown\", this.menuClickEvent, false);\n this.tribute.range\n .getDocument()\n .removeEventListener(\"MSPointerDown\", this.menuClickEvent, false);\n window.removeEventListener(\"resize\", this.windowResizeEvent);\n\n if (this.menuContainer) {\n this.menuContainer.removeEventListener(\n \"scroll\",\n this.menuContainerScrollEvent,\n false\n );\n } else {\n window.removeEventListener(\"scroll\", this.menuContainerScrollEvent);\n }\n }\n\n debounce(func, wait, immediate) {\n var timeout;\n return () => {\n var context = this,\n args = arguments;\n var later = () => {\n timeout = null;\n if (!immediate) func.apply(context, args);\n };\n var callNow = immediate && !timeout;\n clearTimeout(timeout);\n timeout = setTimeout(later, wait);\n if (callNow) func.apply(context, args);\n };\n }\n}\n\nexport default TributeMenuEvents;\n", "// Thanks to https://github.com/jeff-collins/ment.io\nimport \"./utils\";\n\nclass TributeRange {\n constructor(tribute) {\n this.tribute = tribute\n this.tribute.range = this\n }\n\n getDocument() {\n let iframe\n if (this.tribute.current.collection) {\n iframe = this.tribute.current.collection.iframe\n }\n\n if (!iframe) {\n return document\n }\n\n return iframe.contentWindow.document\n }\n\n positionMenuAtCaret(scrollTo) {\n let context = this.tribute.current,\n coordinates\n\n let info = this.getTriggerInfo(false, this.tribute.hasTrailingSpace, true, this.tribute.allowSpaces, this.tribute.autocompleteMode)\n\n if (typeof info !== 'undefined') {\n\n if(!this.tribute.positionMenu){\n this.tribute.menu.style.cssText = `display: block;`\n return\n }\n\n if (!this.isContentEditable(context.element)) {\n coordinates = this.getTextAreaOrInputUnderlinePosition(this.tribute.current.element,\n info.mentionPosition)\n }\n else {\n coordinates = this.getContentEditableCaretPosition(info.mentionPosition)\n }\n\n this.tribute.menu.style.cssText = `top: ${coordinates.top}px;\n left: ${coordinates.left}px;\n right: ${coordinates.right}px;\n bottom: ${coordinates.bottom}px;\n position: absolute;\n display: block;`\n\n if (coordinates.left === 'auto') {\n this.tribute.menu.style.left = 'auto'\n }\n\n if (coordinates.top === 'auto') {\n this.tribute.menu.style.top = 'auto'\n }\n\n if (scrollTo) this.scrollIntoView()\n\n window.setTimeout(() => {\n let menuDimensions = {\n width: this.tribute.menu.offsetWidth,\n height: this.tribute.menu.offsetHeight\n }\n let menuIsOffScreen = this.isMenuOffScreen(coordinates, menuDimensions)\n\n let menuIsOffScreenHorizontally = window.innerWidth > menuDimensions.width && (menuIsOffScreen.left || menuIsOffScreen.right)\n let menuIsOffScreenVertically = window.innerHeight > menuDimensions.height && (menuIsOffScreen.top || menuIsOffScreen.bottom)\n if (menuIsOffScreenHorizontally || menuIsOffScreenVertically) {\n this.tribute.menu.style.cssText = 'display: none'\n this.positionMenuAtCaret(scrollTo)\n }\n }, 0)\n\n } else {\n this.tribute.menu.style.cssText = 'display: none'\n }\n }\n\n get menuContainerIsBody() {\n return this.tribute.menuContainer === document.body || !this.tribute.menuContainer;\n }\n\n\n selectElement(targetElement, path, offset) {\n let range\n let elem = targetElement\n\n if (path) {\n for (var i = 0; i < path.length; i++) {\n elem = elem.childNodes[path[i]]\n if (elem === undefined) {\n return\n }\n while (elem.length < offset) {\n offset -= elem.length\n elem = elem.nextSibling\n }\n if (elem.childNodes.length === 0 && !elem.length) {\n elem = elem.previousSibling\n }\n }\n }\n let sel = this.getWindowSelection()\n\n range = this.getDocument().createRange()\n range.setStart(elem, offset)\n range.setEnd(elem, offset)\n range.collapse(true)\n\n try {\n sel.removeAllRanges()\n } catch (error) {}\n\n sel.addRange(range)\n targetElement.focus()\n }\n\n replaceTriggerText(text, requireLeadingSpace, hasTrailingSpace, originalEvent, item) {\n let info = this.getTriggerInfo(true, hasTrailingSpace, requireLeadingSpace, this.tribute.allowSpaces, this.tribute.autocompleteMode)\n\n if (info !== undefined) {\n let context = this.tribute.current\n let replaceEvent = new CustomEvent('tribute-replaced', {\n detail: {\n item: item,\n instance: context,\n context: info,\n event: originalEvent,\n }\n })\n\n if (!this.isContentEditable(context.element)) {\n let myField = this.tribute.current.element\n let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'\n ? this.tribute.replaceTextSuffix\n : ' '\n text += textSuffix\n let startPos = info.mentionPosition\n let endPos = info.mentionPosition + info.mentionText.length + textSuffix.length\n if (!this.tribute.autocompleteMode) {\n endPos += info.mentionTriggerChar.length - 1\n }\n myField.value = myField.value.substring(0, startPos) + text +\n myField.value.substring(endPos, myField.value.length)\n myField.selectionStart = startPos + text.length\n myField.selectionEnd = startPos + text.length\n } else {\n // add a space to the end of the pasted text\n let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'\n ? this.tribute.replaceTextSuffix\n : '\\xA0'\n text += textSuffix\n let endPos = info.mentionPosition + info.mentionText.length\n if (!this.tribute.autocompleteMode) {\n endPos += info.mentionTriggerChar.length\n }\n this.pasteHtml(text, info.mentionPosition, endPos)\n }\n\n context.element.dispatchEvent(new CustomEvent('input', { bubbles: true }))\n context.element.dispatchEvent(replaceEvent)\n }\n }\n\n pasteHtml(html, startPos, endPos) {\n let range, sel\n sel = this.getWindowSelection()\n range = this.getDocument().createRange()\n range.setStart(sel.anchorNode, startPos)\n range.setEnd(sel.anchorNode, endPos)\n range.deleteContents()\n\n let el = this.getDocument().createElement('div')\n el.innerHTML = html\n let frag = this.getDocument().createDocumentFragment(),\n node, lastNode\n while ((node = el.firstChild)) {\n lastNode = frag.appendChild(node)\n }\n range.insertNode(frag)\n\n // Preserve the selection\n if (lastNode) {\n range = range.cloneRange()\n range.setStartAfter(lastNode)\n range.collapse(true)\n sel.removeAllRanges()\n sel.addRange(range)\n }\n }\n\n getWindowSelection() {\n if (this.tribute.collection.iframe) {\n return this.tribute.collection.iframe.contentWindow.getSelection()\n }\n\n return window.getSelection()\n }\n\n getNodePositionInParent(element) {\n if (element.parentNode === null) {\n return 0\n }\n\n for (var i = 0; i < element.parentNode.childNodes.length; i++) {\n let node = element.parentNode.childNodes[i]\n\n if (node === element) {\n return i\n }\n }\n }\n\n getContentEditableSelectedPath(ctx) {\n let sel = this.getWindowSelection()\n let selected = sel.anchorNode\n let path = []\n let offset\n\n if (selected != null) {\n let i\n let ce = selected.contentEditable\n while (selected !== null && ce !== 'true') {\n i = this.getNodePositionInParent(selected)\n path.push(i)\n selected = selected.parentNode\n if (selected !== null) {\n ce = selected.contentEditable\n }\n }\n path.reverse()\n\n // getRangeAt may not exist, need alternative\n offset = sel.getRangeAt(0).startOffset\n\n return {\n selected: selected,\n path: path,\n offset: offset\n }\n }\n }\n\n getTextPrecedingCurrentSelection() {\n let context = this.tribute.current,\n text = ''\n\n if (!this.isContentEditable(context.element)) {\n let textComponent = this.tribute.current.element;\n if (textComponent) {\n let startPos = textComponent.selectionStart\n if (textComponent.value && startPos >= 0) {\n text = textComponent.value.substring(0, startPos)\n }\n }\n\n } else {\n let selectedElem = this.getWindowSelection().anchorNode\n\n if (selectedElem != null) {\n let workingNodeContent = selectedElem.textContent\n let selectStartOffset = this.getWindowSelection().getRangeAt(0).startOffset\n\n if (workingNodeContent && selectStartOffset >= 0) {\n text = workingNodeContent.substring(0, selectStartOffset)\n }\n }\n }\n\n return text\n }\n\n getLastWordInText(text) {\n text = text.replace(/\\u00A0/g, ' '); // https://stackoverflow.com/questions/29850407/how-do-i-replace-unicode-character-u00a0-with-a-space-in-javascript\n let wordsArray = text.split(/\\s+/);\n let worldsCount = wordsArray.length - 1\n return wordsArray[worldsCount].trim()\n }\n\n getTriggerInfo(menuAlreadyActive, hasTrailingSpace, requireLeadingSpace, allowSpaces, isAutocomplete) {\n let ctx = this.tribute.current\n let selected, path, offset\n\n if (!this.isContentEditable(ctx.element)) {\n selected = this.tribute.current.element\n } else {\n let selectionInfo = this.getContentEditableSelectedPath(ctx)\n\n if (selectionInfo) {\n selected = selectionInfo.selected\n path = selectionInfo.path\n offset = selectionInfo.offset\n }\n }\n\n let effectiveRange = this.getTextPrecedingCurrentSelection()\n let lastWordOfEffectiveRange = this.getLastWordInText(effectiveRange)\n\n if (isAutocomplete) {\n return {\n mentionPosition: effectiveRange.length - lastWordOfEffectiveRange.length,\n mentionText: lastWordOfEffectiveRange,\n mentionSelectedElement: selected,\n mentionSelectedPath: path,\n mentionSelectedOffset: offset\n }\n }\n\n if (effectiveRange !== undefined && effectiveRange !== null) {\n let mostRecentTriggerCharPos = -1\n let triggerChar\n\n this.tribute.collection.forEach(config => {\n let c = config.trigger\n let idx = config.requireLeadingSpace ?\n this.lastIndexWithLeadingSpace(effectiveRange, c) :\n effectiveRange.lastIndexOf(c)\n\n if (idx > mostRecentTriggerCharPos) {\n mostRecentTriggerCharPos = idx\n triggerChar = c\n requireLeadingSpace = config.requireLeadingSpace\n }\n })\n\n if (mostRecentTriggerCharPos >= 0 &&\n (\n mostRecentTriggerCharPos === 0 ||\n !requireLeadingSpace ||\n /[\\xA0\\s]/g.test(\n effectiveRange.substring(\n mostRecentTriggerCharPos - 1,\n mostRecentTriggerCharPos)\n )\n )\n ) {\n let currentTriggerSnippet = effectiveRange.substring(mostRecentTriggerCharPos + triggerChar.length,\n effectiveRange.length)\n\n triggerChar = effectiveRange.substring(mostRecentTriggerCharPos, mostRecentTriggerCharPos + triggerChar.length)\n let firstSnippetChar = currentTriggerSnippet.substring(0, 1)\n let leadingSpace = currentTriggerSnippet.length > 0 &&\n (\n firstSnippetChar === ' ' ||\n firstSnippetChar === '\\xA0'\n )\n if (hasTrailingSpace) {\n currentTriggerSnippet = currentTriggerSnippet.trim()\n }\n\n let regex = allowSpaces ? /[^\\S ]/g : /[\\xA0\\s]/g;\n\n this.tribute.hasTrailingSpace = regex.test(currentTriggerSnippet);\n\n if (!leadingSpace && (menuAlreadyActive || !(regex.test(currentTriggerSnippet)))) {\n return {\n mentionPosition: mostRecentTriggerCharPos,\n mentionText: currentTriggerSnippet,\n mentionSelectedElement: selected,\n mentionSelectedPath: path,\n mentionSelectedOffset: offset,\n mentionTriggerChar: triggerChar\n }\n }\n }\n }\n }\n\n lastIndexWithLeadingSpace (str, trigger) {\n let reversedStr = str.split('').reverse().join('')\n let index = -1\n\n for (let cidx = 0, len = str.length; cidx < len; cidx++) {\n let firstChar = cidx === str.length - 1\n let leadingSpace = /\\s/.test(reversedStr[cidx + 1])\n\n let match = true\n for (let triggerIdx = trigger.length - 1; triggerIdx >= 0; triggerIdx--) {\n if (trigger[triggerIdx] !== reversedStr[cidx-triggerIdx]) {\n match = false\n break\n }\n }\n\n if (match && (firstChar || leadingSpace)) {\n index = str.length - 1 - cidx\n break\n }\n }\n\n return index\n }\n\n isContentEditable(element) {\n return element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA'\n }\n\n isMenuOffScreen(coordinates, menuDimensions) {\n let windowWidth = window.innerWidth\n let windowHeight = window.innerHeight\n let doc = document.documentElement\n let windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0)\n let windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0)\n\n let menuTop = typeof coordinates.top === 'number' ? coordinates.top : windowTop + windowHeight - coordinates.bottom - menuDimensions.height\n let menuRight = typeof coordinates.right === 'number' ? coordinates.right : coordinates.left + menuDimensions.width\n let menuBottom = typeof coordinates.bottom === 'number' ? coordinates.bottom : coordinates.top + menuDimensions.height\n let menuLeft = typeof coordinates.left === 'number' ? coordinates.left : windowLeft + windowWidth - coordinates.right - menuDimensions.width\n\n return {\n top: menuTop < Math.floor(windowTop),\n right: menuRight > Math.ceil(windowLeft + windowWidth),\n bottom: menuBottom > Math.ceil(windowTop + windowHeight),\n left: menuLeft < Math.floor(windowLeft)\n }\n }\n\n getMenuDimensions() {\n // Width of the menu depends of its contents and position\n // We must check what its width would be without any obstruction\n // This way, we can achieve good positioning for flipping the menu\n let dimensions = {\n width: null,\n height: null\n }\n\n this.tribute.menu.style.cssText = `top: 0px;\n left: 0px;\n position: fixed;\n display: block;\n visibility; hidden;`\n dimensions.width = this.tribute.menu.offsetWidth\n dimensions.height = this.tribute.menu.offsetHeight\n\n this.tribute.menu.style.cssText = `display: none;`\n\n return dimensions\n }\n\n getTextAreaOrInputUnderlinePosition(element, position, flipped) {\n let properties = ['direction', 'boxSizing', 'width', 'height', 'overflowX',\n 'overflowY', 'borderTopWidth', 'borderRightWidth',\n 'borderBottomWidth', 'borderLeftWidth', 'paddingTop',\n 'paddingRight', 'paddingBottom', 'paddingLeft',\n 'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch',\n 'fontSize', 'fontSizeAdjust', 'lineHeight', 'fontFamily',\n 'textAlign', 'textTransform', 'textIndent',\n 'textDecoration', 'letterSpacing', 'wordSpacing'\n ]\n\n let isFirefox = (window.mozInnerScreenX !== null)\n\n let div = this.getDocument().createElement('div')\n div.id = 'input-textarea-caret-position-mirror-div'\n this.getDocument().body.appendChild(div)\n\n let style = div.style\n let computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle\n\n style.whiteSpace = 'pre-wrap'\n if (element.nodeName !== 'INPUT') {\n style.wordWrap = 'break-word'\n }\n\n // position off-screen\n style.position = 'absolute'\n style.visibility = 'hidden'\n\n // transfer the element's properties to the div\n properties.forEach(prop => {\n style[prop] = computed[prop]\n })\n\n if (isFirefox) {\n style.width = `${(parseInt(computed.width) - 2)}px`\n if (element.scrollHeight > parseInt(computed.height))\n style.overflowY = 'scroll'\n } else {\n style.overflow = 'hidden'\n }\n\n div.textContent = element.value.substring(0, position)\n\n if (element.nodeName === 'INPUT') {\n div.textContent = div.textContent.replace(/\\s/g, ' ')\n }\n\n let span = this.getDocument().createElement('span')\n span.textContent = element.value.substring(position) || '.'\n div.appendChild(span)\n\n let rect = element.getBoundingClientRect()\n let doc = document.documentElement\n let windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0)\n let windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0)\n\n let top = 0;\n let left = 0;\n if (this.menuContainerIsBody) {\n top = rect.top;\n left = rect.left;\n }\n\n let coordinates = {\n top: top + windowTop + span.offsetTop + parseInt(computed.borderTopWidth) + parseInt(computed.fontSize) - element.scrollTop,\n left: left + windowLeft + span.offsetLeft + parseInt(computed.borderLeftWidth)\n }\n\n let windowWidth = window.innerWidth\n let windowHeight = window.innerHeight\n\n let menuDimensions = this.getMenuDimensions()\n let menuIsOffScreen = this.isMenuOffScreen(coordinates, menuDimensions)\n\n if (menuIsOffScreen.right) {\n coordinates.right = windowWidth - coordinates.left\n coordinates.left = 'auto'\n }\n\n let parentHeight = this.tribute.menuContainer\n ? this.tribute.menuContainer.offsetHeight\n : this.getDocument().body.offsetHeight\n\n if (menuIsOffScreen.bottom) {\n let parentRect = this.tribute.menuContainer\n ? this.tribute.menuContainer.getBoundingClientRect()\n : this.getDocument().body.getBoundingClientRect()\n let scrollStillAvailable = parentHeight - (windowHeight - parentRect.top)\n\n coordinates.bottom = scrollStillAvailable + (windowHeight - rect.top - span.offsetTop)\n coordinates.top = 'auto'\n }\n\n menuIsOffScreen = this.isMenuOffScreen(coordinates, menuDimensions)\n if (menuIsOffScreen.left) {\n coordinates.left = windowWidth > menuDimensions.width\n ? windowLeft + windowWidth - menuDimensions.width\n : windowLeft\n delete coordinates.right\n }\n if (menuIsOffScreen.top) {\n coordinates.top = windowHeight > menuDimensions.height\n ? windowTop + windowHeight - menuDimensions.height\n : windowTop\n delete coordinates.bottom\n }\n\n this.getDocument().body.removeChild(div)\n return coordinates\n }\n\n getContentEditableCaretPosition(selectedNodePosition) {\n let range\n let sel = this.getWindowSelection()\n\n range = this.getDocument().createRange()\n range.setStart(sel.anchorNode, selectedNodePosition)\n range.setEnd(sel.anchorNode, selectedNodePosition)\n\n range.collapse(false)\n\n let rect = range.getBoundingClientRect()\n let doc = document.documentElement\n let windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0)\n let windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0)\n\n let left = rect.left\n let top = rect.top\n\n let coordinates = {\n left: left + windowLeft,\n top: top + rect.height + windowTop\n }\n let windowWidth = window.innerWidth\n let windowHeight = window.innerHeight\n\n let menuDimensions = this.getMenuDimensions()\n let menuIsOffScreen = this.isMenuOffScreen(coordinates, menuDimensions)\n\n if (menuIsOffScreen.right) {\n coordinates.left = 'auto'\n coordinates.right = windowWidth - rect.left - windowLeft\n }\n\n let parentHeight = this.tribute.menuContainer\n ? this.tribute.menuContainer.offsetHeight\n : this.getDocument().body.offsetHeight\n\n if (menuIsOffScreen.bottom) {\n let parentRect = this.tribute.menuContainer\n ? this.tribute.menuContainer.getBoundingClientRect()\n : this.getDocument().body.getBoundingClientRect()\n let scrollStillAvailable = parentHeight - (windowHeight - parentRect.top)\n\n coordinates.top = 'auto'\n coordinates.bottom = scrollStillAvailable + (windowHeight - rect.top)\n }\n\n menuIsOffScreen = this.isMenuOffScreen(coordinates, menuDimensions)\n if (menuIsOffScreen.left) {\n coordinates.left = windowWidth > menuDimensions.width\n ? windowLeft + windowWidth - menuDimensions.width\n : windowLeft\n delete coordinates.right\n }\n if (menuIsOffScreen.top) {\n coordinates.top = windowHeight > menuDimensions.height\n ? windowTop + windowHeight - menuDimensions.height\n : windowTop\n delete coordinates.bottom\n }\n\n if (!this.menuContainerIsBody) {\n coordinates.left = coordinates.left ? coordinates.left - this.tribute.menuContainer.offsetLeft : coordinates.left\n coordinates.top = coordinates.top ? coordinates.top - this.tribute.menuContainer.offsetTop : coordinates.top\n }\n\n return coordinates\n }\n\n scrollIntoView(elem) {\n let reasonableBuffer = 20,\n clientRect\n let maxScrollDisplacement = 100\n let e = this.menu\n\n if (typeof e === 'undefined') return;\n\n while (clientRect === undefined || clientRect.height === 0) {\n clientRect = e.getBoundingClientRect()\n\n if (clientRect.height === 0) {\n e = e.childNodes[0]\n if (e === undefined || !e.getBoundingClientRect) {\n return\n }\n }\n }\n\n let elemTop = clientRect.top\n let elemBottom = elemTop + clientRect.height\n\n if (elemTop < 0) {\n window.scrollTo(0, window.pageYOffset + clientRect.top - reasonableBuffer)\n } else if (elemBottom > window.innerHeight) {\n let maxY = window.pageYOffset + clientRect.top - reasonableBuffer\n\n if (maxY - window.pageYOffset > maxScrollDisplacement) {\n maxY = window.pageYOffset + maxScrollDisplacement\n }\n\n let targetY = window.pageYOffset - (window.innerHeight - elemBottom)\n\n if (targetY > maxY) {\n targetY = maxY\n }\n\n window.scrollTo(0, targetY)\n }\n }\n}\n\n\nexport default TributeRange;\n", "// Thanks to https://github.com/mattyork/fuzzy\nclass TributeSearch {\n constructor(tribute) {\n this.tribute = tribute\n this.tribute.search = this\n }\n\n simpleFilter(pattern, array) {\n return array.filter(string => {\n return this.test(pattern, string)\n })\n }\n\n test(pattern, string) {\n return this.match(pattern, string) !== null\n }\n\n match(pattern, string, opts) {\n opts = opts || {}\n let patternIdx = 0,\n result = [],\n len = string.length,\n totalScore = 0,\n currScore = 0,\n pre = opts.pre || '',\n post = opts.post || '',\n compareString = opts.caseSensitive && string || string.toLowerCase(),\n ch, compareChar\n\n if (opts.skip) {\n return {rendered: string, score: 0}\n }\n\n pattern = opts.caseSensitive && pattern || pattern.toLowerCase()\n\n let patternCache = this.traverse(compareString, pattern, 0, 0, [])\n if (!patternCache) {\n return null\n }\n return {\n rendered: this.render(string, patternCache.cache, pre, post),\n score: patternCache.score\n }\n }\n\n traverse(string, pattern, stringIndex, patternIndex, patternCache) {\n // if the pattern search at end\n if (pattern.length === patternIndex) {\n\n // calculate score and copy the cache containing the indices where it's found\n return {\n score: this.calculateScore(patternCache),\n cache: patternCache.slice()\n }\n }\n\n // if string at end or remaining pattern > remaining string\n if (string.length === stringIndex || pattern.length - patternIndex > string.length - stringIndex) {\n return undefined\n }\n\n let c = pattern[patternIndex]\n let index = string.indexOf(c, stringIndex)\n let best, temp\n\n while (index > -1) {\n patternCache.push(index)\n temp = this.traverse(string, pattern, index + 1, patternIndex + 1, patternCache)\n patternCache.pop()\n\n // if downstream traversal failed, return best answer so far\n if (!temp) {\n return best\n }\n\n if (!best || best.score < temp.score) {\n best = temp\n }\n\n index = string.indexOf(c, index + 1)\n }\n\n return best\n }\n\n calculateScore(patternCache) {\n let score = 0\n let temp = 1\n\n patternCache.forEach((index, i) => {\n if (i > 0) {\n if (patternCache[i - 1] + 1 === index) {\n temp += temp + 1\n }\n else {\n temp = 1\n }\n }\n\n score += temp\n })\n\n return score\n }\n\n render(string, indices, pre, post) {\n var rendered = string.substring(0, indices[0])\n\n indices.forEach((index, i) => {\n rendered += pre + string[index] + post +\n string.substring(index + 1, (indices[i + 1]) ? indices[i + 1] : string.length)\n })\n\n return rendered\n }\n\n filter(pattern, arr, opts) {\n opts = opts || {}\n return arr\n .reduce((prev, element, idx, arr) => {\n let str = element\n\n if (opts.extract) {\n str = opts.extract(element)\n\n if (!str) { // take care of undefineds / nulls / etc.\n str = ''\n }\n }\n\n let rendered = this.match(pattern, str, opts)\n\n if (rendered != null) {\n prev[prev.length] = {\n string: rendered.rendered,\n score: rendered.score,\n index: idx,\n original: element\n }\n }\n\n return prev\n }, [])\n\n .sort((a, b) => {\n let compare = b.score - a.score\n if (compare) return compare\n return a.index - b.index\n })\n }\n}\n\nexport default TributeSearch;\n", "import \"./utils\";\nimport TributeEvents from \"./TributeEvents\";\nimport TributeMenuEvents from \"./TributeMenuEvents\";\nimport TributeRange from \"./TributeRange\";\nimport TributeSearch from \"./TributeSearch\";\n\nclass Tribute {\n constructor({\n values = null,\n iframe = null,\n selectClass = \"highlight\",\n containerClass = \"tribute-container\",\n itemClass = \"\",\n trigger = \"@\",\n autocompleteMode = false,\n selectTemplate = null,\n menuItemTemplate = null,\n lookup = \"key\",\n fillAttr = \"value\",\n collection = null,\n menuContainer = null,\n noMatchTemplate = null,\n requireLeadingSpace = true,\n allowSpaces = false,\n replaceTextSuffix = null,\n positionMenu = true,\n spaceSelectsMatch = false,\n searchOpts = {},\n menuItemLimit = null,\n menuShowMinLength = 0\n }) {\n this.autocompleteMode = autocompleteMode;\n this.menuSelected = 0;\n this.current = {};\n this.inputEvent = false;\n this.isActive = false;\n this.menuContainer = menuContainer;\n this.allowSpaces = allowSpaces;\n this.replaceTextSuffix = replaceTextSuffix;\n this.positionMenu = positionMenu;\n this.hasTrailingSpace = false;\n this.spaceSelectsMatch = spaceSelectsMatch;\n\n if (this.autocompleteMode) {\n trigger = \"\";\n allowSpaces = false;\n }\n\n if (values) {\n this.collection = [\n {\n // symbol that starts the lookup\n trigger: trigger,\n\n // is it wrapped in an iframe\n iframe: iframe,\n\n // class applied to selected item\n selectClass: selectClass,\n\n // class applied to the Container\n containerClass: containerClass,\n\n // class applied to each item\n itemClass: itemClass,\n\n // function called on select that retuns the content to insert\n selectTemplate: (\n selectTemplate || Tribute.defaultSelectTemplate\n ).bind(this),\n\n // function called that returns content for an item\n menuItemTemplate: (\n menuItemTemplate || Tribute.defaultMenuItemTemplate\n ).bind(this),\n\n // function called when menu is empty, disables hiding of menu.\n noMatchTemplate: (t => {\n if (typeof t === \"string\") {\n if (t.trim() === \"\") return null;\n return t;\n }\n if (typeof t === \"function\") {\n return t.bind(this);\n }\n\n return (\n noMatchTemplate ||\n function() {\n return \"
  • No Match Found!
  • \";\n }.bind(this)\n );\n })(noMatchTemplate),\n\n // column to search against in the object\n lookup: lookup,\n\n // column that contains the content to insert by default\n fillAttr: fillAttr,\n\n // array of objects or a function returning an array of objects\n values: values,\n\n requireLeadingSpace: requireLeadingSpace,\n\n searchOpts: searchOpts,\n\n menuItemLimit: menuItemLimit,\n\n menuShowMinLength: menuShowMinLength\n }\n ];\n } else if (collection) {\n if (this.autocompleteMode)\n console.warn(\n \"Tribute in autocomplete mode does not work for collections\"\n );\n this.collection = collection.map(item => {\n return {\n trigger: item.trigger || trigger,\n iframe: item.iframe || iframe,\n selectClass: item.selectClass || selectClass,\n containerClass: item.containerClass || containerClass,\n itemClass: item.itemClass || itemClass,\n selectTemplate: (\n item.selectTemplate || Tribute.defaultSelectTemplate\n ).bind(this),\n menuItemTemplate: (\n item.menuItemTemplate || Tribute.defaultMenuItemTemplate\n ).bind(this),\n // function called when menu is empty, disables hiding of menu.\n noMatchTemplate: (t => {\n if (typeof t === \"string\") {\n if (t.trim() === \"\") return null;\n return t;\n }\n if (typeof t === \"function\") {\n return t.bind(this);\n }\n\n return (\n noMatchTemplate ||\n function() {\n return \"
  • No Match Found!
  • \";\n }.bind(this)\n );\n })(noMatchTemplate),\n lookup: item.lookup || lookup,\n fillAttr: item.fillAttr || fillAttr,\n values: item.values,\n requireLeadingSpace: item.requireLeadingSpace,\n searchOpts: item.searchOpts || searchOpts,\n menuItemLimit: item.menuItemLimit || menuItemLimit,\n menuShowMinLength: item.menuShowMinLength || menuShowMinLength\n };\n });\n } else {\n throw new Error(\"[Tribute] No collection specified.\");\n }\n\n new TributeRange(this);\n new TributeEvents(this);\n new TributeMenuEvents(this);\n new TributeSearch(this);\n }\n\n get isActive() {\n return this._isActive;\n }\n\n set isActive(val) {\n if (this._isActive != val) {\n this._isActive = val;\n if (this.current.element) {\n let noMatchEvent = new CustomEvent(`tribute-active-${val}`);\n this.current.element.dispatchEvent(noMatchEvent);\n }\n }\n }\n\n static defaultSelectTemplate(item) {\n if (typeof item === \"undefined\")\n return `${this.current.collection.trigger}${this.current.mentionText}`;\n if (this.range.isContentEditable(this.current.element)) {\n return (\n '' +\n (this.current.collection.trigger +\n item.original[this.current.collection.fillAttr]) +\n \"\"\n );\n }\n\n return (\n this.current.collection.trigger +\n item.original[this.current.collection.fillAttr]\n );\n }\n\n static defaultMenuItemTemplate(matchItem) {\n return matchItem.string;\n }\n\n static inputTypes() {\n return [\"TEXTAREA\", \"INPUT\"];\n }\n\n triggers() {\n return this.collection.map(config => {\n return config.trigger;\n });\n }\n\n attach(el) {\n if (!el) {\n throw new Error(\"[Tribute] Must pass in a DOM node or NodeList.\");\n }\n\n // Check if it is a jQuery collection\n if (typeof jQuery !== \"undefined\" && el instanceof jQuery) {\n el = el.get();\n }\n\n // Is el an Array/Array-like object?\n if (\n el.constructor === NodeList ||\n el.constructor === HTMLCollection ||\n el.constructor === Array\n ) {\n let length = el.length;\n for (var i = 0; i < length; ++i) {\n this._attach(el[i]);\n }\n } else {\n this._attach(el);\n }\n }\n\n _attach(el) {\n if (el.hasAttribute(\"data-tribute\")) {\n console.warn(\"Tribute was already bound to \" + el.nodeName);\n }\n\n this.ensureEditable(el);\n this.events.bind(el);\n el.setAttribute(\"data-tribute\", true);\n }\n\n ensureEditable(element) {\n if (Tribute.inputTypes().indexOf(element.nodeName) === -1) {\n if (element.contentEditable) {\n element.contentEditable = true;\n } else {\n throw new Error(\"[Tribute] Cannot bind to \" + element.nodeName);\n }\n }\n }\n\n createMenu(containerClass) {\n let wrapper = this.range.getDocument().createElement(\"div\"),\n ul = this.range.getDocument().createElement(\"ul\");\n wrapper.className = containerClass;\n wrapper.appendChild(ul);\n\n if (this.menuContainer) {\n return this.menuContainer.appendChild(wrapper);\n }\n\n return this.range.getDocument().body.appendChild(wrapper);\n }\n\n showMenuFor(element, scrollTo) {\n // Only proceed if menu isn't already shown for the current element & mentionText\n if (\n this.isActive &&\n this.current.element === element &&\n this.current.mentionText === this.currentMentionTextSnapshot\n ) {\n return;\n }\n this.currentMentionTextSnapshot = this.current.mentionText;\n\n // create the menu if it doesn't exist.\n if (!this.menu) {\n this.menu = this.createMenu(this.current.collection.containerClass);\n element.tributeMenu = this.menu;\n this.menuEvents.bind(this.menu);\n }\n\n this.isActive = true;\n this.menuSelected = 0;\n\n if (!this.current.mentionText) {\n this.current.mentionText = \"\";\n }\n\n const processValues = values => {\n // Tribute may not be active any more by the time the value callback returns\n if (!this.isActive) {\n return;\n }\n\n let items = this.search.filter(this.current.mentionText, values, {\n pre: this.current.collection.searchOpts.pre || \"\",\n post: this.current.collection.searchOpts.post || \"\",\n skip: this.current.collection.searchOpts.skip,\n extract: el => {\n if (typeof this.current.collection.lookup === \"string\") {\n return el[this.current.collection.lookup];\n } else if (typeof this.current.collection.lookup === \"function\") {\n return this.current.collection.lookup(el, this.current.mentionText);\n } else {\n throw new Error(\n \"Invalid lookup attribute, lookup must be string or function.\"\n );\n }\n }\n });\n\n if (this.current.collection.menuItemLimit) {\n items = items.slice(0, this.current.collection.menuItemLimit);\n }\n\n this.current.filteredItems = items;\n\n let ul = this.menu.querySelector(\"ul\");\n\n this.range.positionMenuAtCaret(scrollTo);\n\n if (!items.length) {\n let noMatchEvent = new CustomEvent(\"tribute-no-match\", {\n detail: this.menu\n });\n this.current.element.dispatchEvent(noMatchEvent);\n if (\n (typeof this.current.collection.noMatchTemplate === \"function\" &&\n !this.current.collection.noMatchTemplate()) ||\n !this.current.collection.noMatchTemplate\n ) {\n this.hideMenu();\n } else {\n typeof this.current.collection.noMatchTemplate === \"function\"\n ? (ul.innerHTML = this.current.collection.noMatchTemplate())\n : (ul.innerHTML = this.current.collection.noMatchTemplate);\n }\n\n return;\n }\n\n ul.innerHTML = \"\";\n let fragment = this.range.getDocument().createDocumentFragment();\n\n items.forEach((item, index) => {\n let li = this.range.getDocument().createElement(\"li\");\n li.setAttribute(\"data-index\", index);\n li.className = this.current.collection.itemClass;\n li.addEventListener(\"mousemove\", e => {\n let [li, index] = this._findLiTarget(e.target);\n if (e.movementY !== 0) {\n this.events.setActiveLi(index);\n }\n });\n if (this.menuSelected === index) {\n li.classList.add(this.current.collection.selectClass);\n }\n li.innerHTML = this.current.collection.menuItemTemplate(item);\n fragment.appendChild(li);\n });\n ul.appendChild(fragment);\n };\n\n if (typeof this.current.collection.values === \"function\") {\n this.current.collection.values(this.current.mentionText, processValues);\n } else {\n processValues(this.current.collection.values);\n }\n }\n\n _findLiTarget(el) {\n if (!el) return [];\n const index = el.getAttribute(\"data-index\");\n return !index ? this._findLiTarget(el.parentNode) : [el, index];\n }\n\n showMenuForCollection(element, collectionIndex) {\n if (element !== document.activeElement) {\n this.placeCaretAtEnd(element);\n }\n\n this.current.collection = this.collection[collectionIndex || 0];\n this.current.externalTrigger = true;\n this.current.element = element;\n\n if (element.isContentEditable)\n this.insertTextAtCursor(this.current.collection.trigger);\n else this.insertAtCaret(element, this.current.collection.trigger);\n\n this.showMenuFor(element);\n }\n\n // TODO: make sure this works for inputs/textareas\n placeCaretAtEnd(el) {\n el.focus();\n if (\n typeof window.getSelection != \"undefined\" &&\n typeof document.createRange != \"undefined\"\n ) {\n var range = document.createRange();\n range.selectNodeContents(el);\n range.collapse(false);\n var sel = window.getSelection();\n sel.removeAllRanges();\n sel.addRange(range);\n } else if (typeof document.body.createTextRange != \"undefined\") {\n var textRange = document.body.createTextRange();\n textRange.moveToElementText(el);\n textRange.collapse(false);\n textRange.select();\n }\n }\n\n // for contenteditable\n insertTextAtCursor(text) {\n var sel, range, html;\n sel = window.getSelection();\n range = sel.getRangeAt(0);\n range.deleteContents();\n var textNode = document.createTextNode(text);\n range.insertNode(textNode);\n range.selectNodeContents(textNode);\n range.collapse(false);\n sel.removeAllRanges();\n sel.addRange(range);\n }\n\n // for regular inputs\n insertAtCaret(textarea, text) {\n var scrollPos = textarea.scrollTop;\n var caretPos = textarea.selectionStart;\n\n var front = textarea.value.substring(0, caretPos);\n var back = textarea.value.substring(\n textarea.selectionEnd,\n textarea.value.length\n );\n textarea.value = front + text + back;\n caretPos = caretPos + text.length;\n textarea.selectionStart = caretPos;\n textarea.selectionEnd = caretPos;\n textarea.focus();\n textarea.scrollTop = scrollPos;\n }\n\n hideMenu() {\n if (this.menu) {\n this.menu.style.cssText = \"display: none;\";\n this.isActive = false;\n this.menuSelected = 0;\n this.current = {};\n }\n }\n\n selectItemAtIndex(index, originalEvent) {\n index = parseInt(index);\n if (typeof index !== \"number\" || isNaN(index)) return;\n let item = this.current.filteredItems[index];\n let content = this.current.collection.selectTemplate(item);\n if (content !== null) this.replaceText(content, originalEvent, item);\n }\n\n replaceText(content, originalEvent, item) {\n this.range.replaceTriggerText(content, true, true, originalEvent, item);\n }\n\n _append(collection, newValues, replace) {\n if (typeof collection.values === \"function\") {\n throw new Error(\"Unable to append to values, as it is a function.\");\n } else if (!replace) {\n collection.values = collection.values.concat(newValues);\n } else {\n collection.values = newValues;\n }\n }\n\n append(collectionIndex, newValues, replace) {\n let index = parseInt(collectionIndex);\n if (typeof index !== \"number\")\n throw new Error(\"please provide an index for the collection to update.\");\n\n let collection = this.collection[index];\n\n this._append(collection, newValues, replace);\n }\n\n appendCurrent(newValues, replace) {\n if (this.isActive) {\n this._append(this.current.collection, newValues, replace);\n } else {\n throw new Error(\n \"No active state. Please use append instead and pass an index.\"\n );\n }\n }\n\n detach(el) {\n if (!el) {\n throw new Error(\"[Tribute] Must pass in a DOM node or NodeList.\");\n }\n\n // Check if it is a jQuery collection\n if (typeof jQuery !== \"undefined\" && el instanceof jQuery) {\n el = el.get();\n }\n\n // Is el an Array/Array-like object?\n if (\n el.constructor === NodeList ||\n el.constructor === HTMLCollection ||\n el.constructor === Array\n ) {\n let length = el.length;\n for (var i = 0; i < length; ++i) {\n this._detach(el[i]);\n }\n } else {\n this._detach(el);\n }\n }\n\n _detach(el) {\n this.events.unbind(el);\n if (el.tributeMenu) {\n this.menuEvents.unbind(el.tributeMenu);\n }\n\n setTimeout(() => {\n el.removeAttribute(\"data-tribute\");\n this.isActive = false;\n if (el.tributeMenu) {\n el.tributeMenu.remove();\n }\n });\n }\n}\n\nexport default Tribute;\n", "var win;\n\nif (typeof window !== \"undefined\") {\n win = window;\n} else if (typeof global !== \"undefined\") {\n win = global;\n} else if (typeof self !== \"undefined\"){\n win = self;\n} else {\n win = {};\n}\n\nmodule.exports = win;\n", "var topLevel = typeof global !== 'undefined' ? global :\n typeof window !== 'undefined' ? window : {}\nvar minDoc = require('min-document');\n\nvar doccy;\n\nif (typeof document !== 'undefined') {\n doccy = document;\n} else {\n doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];\n\n if (!doccy) {\n doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;\n }\n}\n\nmodule.exports = doccy;\n", "function _extends() {\n return module.exports = _extends = Object.assign ? Object.assign.bind() : function (n) {\n for (var e = 1; e < arguments.length; e++) {\n var t = arguments[e];\n for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]);\n }\n return n;\n }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports, _extends.apply(null, arguments);\n}\nmodule.exports = _extends, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "// Source: http://jsfiddle.net/vWx8V/\n// http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes\n\n/**\n * Conenience method returns corresponding value for given keyName or keyCode.\n *\n * @param {Mixed} keyCode {Number} or keyName {String}\n * @return {Mixed}\n * @api public\n */\n\nfunction keyCode(searchInput) {\n // Keyboard Events\n if (searchInput && 'object' === typeof searchInput) {\n var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode\n if (hasKeyCode) searchInput = hasKeyCode\n }\n\n // Numbers\n if ('number' === typeof searchInput) return names[searchInput]\n\n // Everything else (cast to string)\n var search = String(searchInput)\n\n // check codes\n var foundNamedKey = codes[search.toLowerCase()]\n if (foundNamedKey) return foundNamedKey\n\n // check aliases\n var foundNamedKey = aliases[search.toLowerCase()]\n if (foundNamedKey) return foundNamedKey\n\n // weird character?\n if (search.length === 1) return search.charCodeAt(0)\n\n return undefined\n}\n\n/**\n * Compares a keyboard event with a given keyCode or keyName.\n *\n * @param {Event} event Keyboard event that should be tested\n * @param {Mixed} keyCode {Number} or keyName {String}\n * @return {Boolean}\n * @api public\n */\nkeyCode.isEventKey = function isEventKey(event, nameOrCode) {\n if (event && 'object' === typeof event) {\n var keyCode = event.which || event.keyCode || event.charCode\n if (keyCode === null || keyCode === undefined) { return false; }\n if (typeof nameOrCode === 'string') {\n // check codes\n var foundNamedKey = codes[nameOrCode.toLowerCase()]\n if (foundNamedKey) { return foundNamedKey === keyCode; }\n \n // check aliases\n var foundNamedKey = aliases[nameOrCode.toLowerCase()]\n if (foundNamedKey) { return foundNamedKey === keyCode; }\n } else if (typeof nameOrCode === 'number') {\n return nameOrCode === keyCode;\n }\n return false;\n }\n}\n\nexports = module.exports = keyCode;\n\n/**\n * Get by name\n *\n * exports.code['enter'] // => 13\n */\n\nvar codes = exports.code = exports.codes = {\n 'backspace': 8,\n 'tab': 9,\n 'enter': 13,\n 'shift': 16,\n 'ctrl': 17,\n 'alt': 18,\n 'pause/break': 19,\n 'caps lock': 20,\n 'esc': 27,\n 'space': 32,\n 'page up': 33,\n 'page down': 34,\n 'end': 35,\n 'home': 36,\n 'left': 37,\n 'up': 38,\n 'right': 39,\n 'down': 40,\n 'insert': 45,\n 'delete': 46,\n 'command': 91,\n 'left command': 91,\n 'right command': 93,\n 'numpad *': 106,\n 'numpad +': 107,\n 'numpad -': 109,\n 'numpad .': 110,\n 'numpad /': 111,\n 'num lock': 144,\n 'scroll lock': 145,\n 'my computer': 182,\n 'my calculator': 183,\n ';': 186,\n '=': 187,\n ',': 188,\n '-': 189,\n '.': 190,\n '/': 191,\n '`': 192,\n '[': 219,\n '\\\\': 220,\n ']': 221,\n \"'\": 222\n}\n\n// Helper aliases\n\nvar aliases = exports.aliases = {\n 'windows': 91,\n '\u21E7': 16,\n '\u2325': 18,\n '\u2303': 17,\n '\u2318': 91,\n 'ctl': 17,\n 'control': 17,\n 'option': 18,\n 'pause': 19,\n 'break': 19,\n 'caps': 20,\n 'return': 13,\n 'escape': 27,\n 'spc': 32,\n 'spacebar': 32,\n 'pgup': 33,\n 'pgdn': 34,\n 'ins': 45,\n 'del': 46,\n 'cmd': 91\n}\n\n/*!\n * Programatically add the following\n */\n\n// lower case chars\nfor (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32\n\n// numbers\nfor (var i = 48; i < 58; i++) codes[i - 48] = i\n\n// function keys\nfor (i = 1; i < 13; i++) codes['f'+i] = i + 111\n\n// numpad keys\nfor (i = 0; i < 10; i++) codes['numpad '+i] = i + 96\n\n/**\n * Get by code\n *\n * exports.name[13] // => 'Enter'\n */\n\nvar names = exports.names = exports.title = {} // title for backward compat\n\n// Create reverse mapping\nfor (i in codes) names[codes[i]] = i\n\n// Add aliases\nfor (var alias in aliases) {\n codes[alias] = aliases[alias]\n}\n", "function _assertThisInitialized(e) {\n if (void 0 === e) throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n return e;\n}\nmodule.exports = _assertThisInitialized, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "function _setPrototypeOf(t, e) {\n return module.exports = _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) {\n return t.__proto__ = e, t;\n }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports, _setPrototypeOf(t, e);\n}\nmodule.exports = _setPrototypeOf, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "var setPrototypeOf = require(\"./setPrototypeOf.js\");\nfunction _inheritsLoose(t, o) {\n t.prototype = Object.create(o.prototype), t.prototype.constructor = t, setPrototypeOf(t, o);\n}\nmodule.exports = _inheritsLoose, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "module.exports = SafeParseTuple\n\nfunction SafeParseTuple(obj, reviver) {\n var json\n var error = null\n\n try {\n json = JSON.parse(obj, reviver)\n } catch (err) {\n error = err\n }\n\n return [error, json]\n}\n", "function _extends() {\n return module.exports = _extends = Object.assign ? Object.assign.bind() : function (n) {\n for (var e = 1; e < arguments.length; e++) {\n var t = arguments[e];\n for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]);\n }\n return n;\n }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports, _extends.apply(null, arguments);\n}\nmodule.exports = _extends, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "module.exports = isFunction\n\nvar toString = Object.prototype.toString\n\nfunction isFunction (fn) {\n if (!fn) {\n return false\n }\n var string = toString.call(fn)\n return string === '[object Function]' ||\n (typeof fn === 'function' && string !== '[object RegExp]') ||\n (typeof window !== 'undefined' &&\n // IE8 and below\n (fn === window.setTimeout ||\n fn === window.alert ||\n fn === window.confirm ||\n fn === window.prompt))\n};\n", "\"use strict\";\n\nvar window = require('global/window');\n\nvar httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {\n if (decodeResponseBody === void 0) {\n decodeResponseBody = false;\n }\n\n return function (err, response, responseBody) {\n // if the XHR failed, return that error\n if (err) {\n callback(err);\n return;\n } // if the HTTP status code is 4xx or 5xx, the request also failed\n\n\n if (response.statusCode >= 400 && response.statusCode <= 599) {\n var cause = responseBody;\n\n if (decodeResponseBody) {\n if (window.TextDecoder) {\n var charset = getCharset(response.headers && response.headers['content-type']);\n\n try {\n cause = new TextDecoder(charset).decode(responseBody);\n } catch (e) {}\n } else {\n cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));\n }\n }\n\n callback({\n cause: cause\n });\n return;\n } // otherwise, request succeeded\n\n\n callback(null, responseBody);\n };\n};\n\nfunction getCharset(contentTypeHeader) {\n if (contentTypeHeader === void 0) {\n contentTypeHeader = '';\n }\n\n return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {\n var _contentType$split = contentType.split('='),\n type = _contentType$split[0],\n value = _contentType$split[1];\n\n if (type.trim() === 'charset') {\n return value.trim();\n }\n\n return charset;\n }, 'utf-8');\n}\n\nmodule.exports = httpResponseHandler;", "\"use strict\";\n\nvar window = require(\"global/window\");\n\nvar _extends = require(\"@babel/runtime/helpers/extends\");\n\nvar isFunction = require('is-function');\n\ncreateXHR.httpHandler = require('./http-handler.js');\n/**\n * @license\n * slighly modified parse-headers 2.0.2 \n * Copyright (c) 2014 David Bj\u00F6rklund\n * Available under the MIT license\n * \n */\n\nvar parseHeaders = function parseHeaders(headers) {\n var result = {};\n\n if (!headers) {\n return result;\n }\n\n headers.trim().split('\\n').forEach(function (row) {\n var index = row.indexOf(':');\n var key = row.slice(0, index).trim().toLowerCase();\n var value = row.slice(index + 1).trim();\n\n if (typeof result[key] === 'undefined') {\n result[key] = value;\n } else if (Array.isArray(result[key])) {\n result[key].push(value);\n } else {\n result[key] = [result[key], value];\n }\n });\n return result;\n};\n\nmodule.exports = createXHR; // Allow use of default import syntax in TypeScript\n\nmodule.exports.default = createXHR;\ncreateXHR.XMLHttpRequest = window.XMLHttpRequest || noop;\ncreateXHR.XDomainRequest = \"withCredentials\" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window.XDomainRequest;\nforEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function (method) {\n createXHR[method === \"delete\" ? \"del\" : method] = function (uri, options, callback) {\n options = initParams(uri, options, callback);\n options.method = method.toUpperCase();\n return _createXHR(options);\n };\n});\n\nfunction forEachArray(array, iterator) {\n for (var i = 0; i < array.length; i++) {\n iterator(array[i]);\n }\n}\n\nfunction isEmpty(obj) {\n for (var i in obj) {\n if (obj.hasOwnProperty(i)) return false;\n }\n\n return true;\n}\n\nfunction initParams(uri, options, callback) {\n var params = uri;\n\n if (isFunction(options)) {\n callback = options;\n\n if (typeof uri === \"string\") {\n params = {\n uri: uri\n };\n }\n } else {\n params = _extends({}, options, {\n uri: uri\n });\n }\n\n params.callback = callback;\n return params;\n}\n\nfunction createXHR(uri, options, callback) {\n options = initParams(uri, options, callback);\n return _createXHR(options);\n}\n\nfunction _createXHR(options) {\n if (typeof options.callback === \"undefined\") {\n throw new Error(\"callback argument missing\");\n }\n\n var called = false;\n\n var callback = function cbOnce(err, response, body) {\n if (!called) {\n called = true;\n options.callback(err, response, body);\n }\n };\n\n function readystatechange() {\n if (xhr.readyState === 4) {\n setTimeout(loadFunc, 0);\n }\n }\n\n function getBody() {\n // Chrome with requestType=blob throws errors arround when even testing access to responseText\n var body = undefined;\n\n if (xhr.response) {\n body = xhr.response;\n } else {\n body = xhr.responseText || getXml(xhr);\n }\n\n if (isJson) {\n try {\n body = JSON.parse(body);\n } catch (e) {}\n }\n\n return body;\n }\n\n function errorFunc(evt) {\n clearTimeout(timeoutTimer);\n\n if (!(evt instanceof Error)) {\n evt = new Error(\"\" + (evt || \"Unknown XMLHttpRequest Error\"));\n }\n\n evt.statusCode = 0;\n return callback(evt, failureResponse);\n } // will load the data & process the response in a special response object\n\n\n function loadFunc() {\n if (aborted) return;\n var status;\n clearTimeout(timeoutTimer);\n\n if (options.useXDR && xhr.status === undefined) {\n //IE8 CORS GET successful response doesn't have a status field, but body is fine\n status = 200;\n } else {\n status = xhr.status === 1223 ? 204 : xhr.status;\n }\n\n var response = failureResponse;\n var err = null;\n\n if (status !== 0) {\n response = {\n body: getBody(),\n statusCode: status,\n method: method,\n headers: {},\n url: uri,\n rawRequest: xhr\n };\n\n if (xhr.getAllResponseHeaders) {\n //remember xhr can in fact be XDR for CORS in IE\n response.headers = parseHeaders(xhr.getAllResponseHeaders());\n }\n } else {\n err = new Error(\"Internal XMLHttpRequest Error\");\n }\n\n return callback(err, response, response.body);\n }\n\n var xhr = options.xhr || null;\n\n if (!xhr) {\n if (options.cors || options.useXDR) {\n xhr = new createXHR.XDomainRequest();\n } else {\n xhr = new createXHR.XMLHttpRequest();\n }\n }\n\n var key;\n var aborted;\n var uri = xhr.url = options.uri || options.url;\n var method = xhr.method = options.method || \"GET\";\n var body = options.body || options.data;\n var headers = xhr.headers = options.headers || {};\n var sync = !!options.sync;\n var isJson = false;\n var timeoutTimer;\n var failureResponse = {\n body: undefined,\n headers: {},\n statusCode: 0,\n method: method,\n url: uri,\n rawRequest: xhr\n };\n\n if (\"json\" in options && options.json !== false) {\n isJson = true;\n headers[\"accept\"] || headers[\"Accept\"] || (headers[\"Accept\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n if (method !== \"GET\" && method !== \"HEAD\") {\n headers[\"content-type\"] || headers[\"Content-Type\"] || (headers[\"Content-Type\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n body = JSON.stringify(options.json === true ? body : options.json);\n }\n }\n\n xhr.onreadystatechange = readystatechange;\n xhr.onload = loadFunc;\n xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.\n\n xhr.onprogress = function () {// IE must die\n };\n\n xhr.onabort = function () {\n aborted = true;\n };\n\n xhr.ontimeout = errorFunc;\n xhr.open(method, uri, !sync, options.username, options.password); //has to be after open\n\n if (!sync) {\n xhr.withCredentials = !!options.withCredentials;\n } // Cannot set timeout with sync request\n // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly\n // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent\n\n\n if (!sync && options.timeout > 0) {\n timeoutTimer = setTimeout(function () {\n if (aborted) return;\n aborted = true; //IE9 may still call readystatechange\n\n xhr.abort(\"timeout\");\n var e = new Error(\"XMLHttpRequest timeout\");\n e.code = \"ETIMEDOUT\";\n errorFunc(e);\n }, options.timeout);\n }\n\n if (xhr.setRequestHeader) {\n for (key in headers) {\n if (headers.hasOwnProperty(key)) {\n xhr.setRequestHeader(key, headers[key]);\n }\n }\n } else if (options.headers && !isEmpty(options.headers)) {\n throw new Error(\"Headers cannot be set on an XDomainRequest object\");\n }\n\n if (\"responseType\" in options) {\n xhr.responseType = options.responseType;\n }\n\n if (\"beforeSend\" in options && typeof options.beforeSend === \"function\") {\n options.beforeSend(xhr);\n } // Microsoft Edge browser sends \"undefined\" when send is called with undefined value.\n // XMLHttpRequest spec says to pass null as body to indicate no body\n // See https://github.com/naugtur/xhr/issues/100.\n\n\n xhr.send(body || null);\n return xhr;\n}\n\nfunction getXml(xhr) {\n // xhr.responseXML will throw Exception \"InvalidStateError\" or \"DOMException\"\n // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.\n try {\n if (xhr.responseType === \"document\") {\n return xhr.responseXML;\n }\n\n var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === \"parsererror\";\n\n if (xhr.responseType === \"\" && !firefoxBugTakenEffect) {\n return xhr.responseXML;\n }\n } catch (e) {}\n\n return null;\n}\n\nfunction noop() {}", "/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\nvar document = require('global/document');\n\nvar _objCreate = Object.create || (function() {\n function F() {}\n return function(o) {\n if (arguments.length !== 1) {\n throw new Error('Object.create shim only accepts one parameter.');\n }\n F.prototype = o;\n return new F();\n };\n})();\n\n// Creates a new ParserError object from an errorData object. The errorData\n// object should have default code and message properties. The default message\n// property can be overriden by passing in a message parameter.\n// See ParsingError.Errors below for acceptable errors.\nfunction ParsingError(errorData, message) {\n this.name = \"ParsingError\";\n this.code = errorData.code;\n this.message = message || errorData.message;\n}\nParsingError.prototype = _objCreate(Error.prototype);\nParsingError.prototype.constructor = ParsingError;\n\n// ParsingError metadata for acceptable ParsingErrors.\nParsingError.Errors = {\n BadSignature: {\n code: 0,\n message: \"Malformed WebVTT signature.\"\n },\n BadTimeStamp: {\n code: 1,\n message: \"Malformed time stamp.\"\n }\n};\n\n// Try to parse input as a time stamp.\nfunction parseTimeStamp(input) {\n\n function computeSeconds(h, m, s, f) {\n return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;\n }\n\n var m = input.match(/^(\\d+):(\\d{1,2})(:\\d{1,2})?\\.(\\d{3})/);\n if (!m) {\n return null;\n }\n\n if (m[3]) {\n // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]\n return computeSeconds(m[1], m[2], m[3].replace(\":\", \"\"), m[4]);\n } else if (m[1] > 59) {\n // Timestamp takes the form of [hours]:[minutes].[milliseconds]\n // First position is hours as it's over 59.\n return computeSeconds(m[1], m[2], 0, m[4]);\n } else {\n // Timestamp takes the form of [minutes]:[seconds].[milliseconds]\n return computeSeconds(0, m[1], m[2], m[4]);\n }\n}\n\n// A settings object holds key/value pairs and will ignore anything but the first\n// assignment to a specific key.\nfunction Settings() {\n this.values = _objCreate(null);\n}\n\nSettings.prototype = {\n // Only accept the first assignment to any key.\n set: function(k, v) {\n if (!this.get(k) && v !== \"\") {\n this.values[k] = v;\n }\n },\n // Return the value for a key, or a default value.\n // If 'defaultKey' is passed then 'dflt' is assumed to be an object with\n // a number of possible default values as properties where 'defaultKey' is\n // the key of the property that will be chosen; otherwise it's assumed to be\n // a single value.\n get: function(k, dflt, defaultKey) {\n if (defaultKey) {\n return this.has(k) ? this.values[k] : dflt[defaultKey];\n }\n return this.has(k) ? this.values[k] : dflt;\n },\n // Check whether we have a value for a key.\n has: function(k) {\n return k in this.values;\n },\n // Accept a setting if its one of the given alternatives.\n alt: function(k, v, a) {\n for (var n = 0; n < a.length; ++n) {\n if (v === a[n]) {\n this.set(k, v);\n break;\n }\n }\n },\n // Accept a setting if its a valid (signed) integer.\n integer: function(k, v) {\n if (/^-?\\d+$/.test(v)) { // integer\n this.set(k, parseInt(v, 10));\n }\n },\n // Accept a setting if its a valid percentage.\n percent: function(k, v) {\n var m;\n if ((m = v.match(/^([\\d]{1,3})(\\.[\\d]*)?%$/))) {\n v = parseFloat(v);\n if (v >= 0 && v <= 100) {\n this.set(k, v);\n return true;\n }\n }\n return false;\n }\n};\n\n// Helper function to parse input into groups separated by 'groupDelim', and\n// interprete each group as a key/value pair separated by 'keyValueDelim'.\nfunction parseOptions(input, callback, keyValueDelim, groupDelim) {\n var groups = groupDelim ? input.split(groupDelim) : [input];\n for (var i in groups) {\n if (typeof groups[i] !== \"string\") {\n continue;\n }\n var kv = groups[i].split(keyValueDelim);\n if (kv.length !== 2) {\n continue;\n }\n var k = kv[0].trim();\n var v = kv[1].trim();\n callback(k, v);\n }\n}\n\nfunction parseCue(input, cue, regionList) {\n // Remember the original input if we need to throw an error.\n var oInput = input;\n // 4.1 WebVTT timestamp\n function consumeTimeStamp() {\n var ts = parseTimeStamp(input);\n if (ts === null) {\n throw new ParsingError(ParsingError.Errors.BadTimeStamp,\n \"Malformed timestamp: \" + oInput);\n }\n // Remove time stamp from input.\n input = input.replace(/^[^\\sa-zA-Z-]+/, \"\");\n return ts;\n }\n\n // 4.4.2 WebVTT cue settings\n function consumeCueSettings(input, cue) {\n var settings = new Settings();\n\n parseOptions(input, function (k, v) {\n switch (k) {\n case \"region\":\n // Find the last region we parsed with the same region id.\n for (var i = regionList.length - 1; i >= 0; i--) {\n if (regionList[i].id === v) {\n settings.set(k, regionList[i].region);\n break;\n }\n }\n break;\n case \"vertical\":\n settings.alt(k, v, [\"rl\", \"lr\"]);\n break;\n case \"line\":\n var vals = v.split(\",\"),\n vals0 = vals[0];\n settings.integer(k, vals0);\n settings.percent(k, vals0) ? settings.set(\"snapToLines\", false) : null;\n settings.alt(k, vals0, [\"auto\"]);\n if (vals.length === 2) {\n settings.alt(\"lineAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n }\n break;\n case \"position\":\n vals = v.split(\",\");\n settings.percent(k, vals[0]);\n if (vals.length === 2) {\n settings.alt(\"positionAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n }\n break;\n case \"size\":\n settings.percent(k, v);\n break;\n case \"align\":\n settings.alt(k, v, [\"start\", \"center\", \"end\", \"left\", \"right\"]);\n break;\n }\n }, /:/, /\\s/);\n\n // Apply default values for any missing fields.\n cue.region = settings.get(\"region\", null);\n cue.vertical = settings.get(\"vertical\", \"\");\n try {\n cue.line = settings.get(\"line\", \"auto\");\n } catch (e) {}\n cue.lineAlign = settings.get(\"lineAlign\", \"start\");\n cue.snapToLines = settings.get(\"snapToLines\", true);\n cue.size = settings.get(\"size\", 100);\n // Safari still uses the old middle value and won't accept center\n try {\n cue.align = settings.get(\"align\", \"center\");\n } catch (e) {\n cue.align = settings.get(\"align\", \"middle\");\n }\n try {\n cue.position = settings.get(\"position\", \"auto\");\n } catch (e) {\n cue.position = settings.get(\"position\", {\n start: 0,\n left: 0,\n center: 50,\n middle: 50,\n end: 100,\n right: 100\n }, cue.align);\n }\n\n\n cue.positionAlign = settings.get(\"positionAlign\", {\n start: \"start\",\n left: \"start\",\n center: \"center\",\n middle: \"center\",\n end: \"end\",\n right: \"end\"\n }, cue.align);\n }\n\n function skipWhitespace() {\n input = input.replace(/^\\s+/, \"\");\n }\n\n // 4.1 WebVTT cue timings.\n skipWhitespace();\n cue.startTime = consumeTimeStamp(); // (1) collect cue start time\n skipWhitespace();\n if (input.substr(0, 3) !== \"-->\") { // (3) next characters must match \"-->\"\n throw new ParsingError(ParsingError.Errors.BadTimeStamp,\n \"Malformed time stamp (time stamps must be separated by '-->'): \" +\n oInput);\n }\n input = input.substr(3);\n skipWhitespace();\n cue.endTime = consumeTimeStamp(); // (5) collect cue end time\n\n // 4.1 WebVTT cue settings list.\n skipWhitespace();\n consumeCueSettings(input, cue);\n}\n\n// When evaluating this file as part of a Webpack bundle for server\n// side rendering, `document` is an empty object.\nvar TEXTAREA_ELEMENT = document.createElement && document.createElement(\"textarea\");\n\nvar TAG_NAME = {\n c: \"span\",\n i: \"i\",\n b: \"b\",\n u: \"u\",\n ruby: \"ruby\",\n rt: \"rt\",\n v: \"span\",\n lang: \"span\"\n};\n\n// 5.1 default text color\n// 5.2 default text background color is equivalent to text color with bg_ prefix\nvar DEFAULT_COLOR_CLASS = {\n white: 'rgba(255,255,255,1)',\n lime: 'rgba(0,255,0,1)',\n cyan: 'rgba(0,255,255,1)',\n red: 'rgba(255,0,0,1)',\n yellow: 'rgba(255,255,0,1)',\n magenta: 'rgba(255,0,255,1)',\n blue: 'rgba(0,0,255,1)',\n black: 'rgba(0,0,0,1)'\n};\n\nvar TAG_ANNOTATION = {\n v: \"title\",\n lang: \"lang\"\n};\n\nvar NEEDS_PARENT = {\n rt: \"ruby\"\n};\n\n// Parse content into a document fragment.\nfunction parseContent(window, input) {\n function nextToken() {\n // Check for end-of-string.\n if (!input) {\n return null;\n }\n\n // Consume 'n' characters from the input.\n function consume(result) {\n input = input.substr(result.length);\n return result;\n }\n\n var m = input.match(/^([^<]*)(<[^>]*>?)?/);\n // If there is some text before the next tag, return it, otherwise return\n // the tag.\n return consume(m[1] ? m[1] : m[2]);\n }\n\n function unescape(s) {\n TEXTAREA_ELEMENT.innerHTML = s;\n s = TEXTAREA_ELEMENT.textContent;\n TEXTAREA_ELEMENT.textContent = \"\";\n return s;\n }\n\n function shouldAdd(current, element) {\n return !NEEDS_PARENT[element.localName] ||\n NEEDS_PARENT[element.localName] === current.localName;\n }\n\n // Create an element for this tag.\n function createElement(type, annotation) {\n var tagName = TAG_NAME[type];\n if (!tagName) {\n return null;\n }\n var element = window.document.createElement(tagName);\n var name = TAG_ANNOTATION[type];\n if (name && annotation) {\n element[name] = annotation.trim();\n }\n return element;\n }\n\n var rootDiv = window.document.createElement(\"div\"),\n current = rootDiv,\n t,\n tagStack = [];\n\n while ((t = nextToken()) !== null) {\n if (t[0] === '<') {\n if (t[1] === \"/\") {\n // If the closing tag matches, move back up to the parent node.\n if (tagStack.length &&\n tagStack[tagStack.length - 1] === t.substr(2).replace(\">\", \"\")) {\n tagStack.pop();\n current = current.parentNode;\n }\n // Otherwise just ignore the end tag.\n continue;\n }\n var ts = parseTimeStamp(t.substr(1, t.length - 2));\n var node;\n if (ts) {\n // Timestamps are lead nodes as well.\n node = window.document.createProcessingInstruction(\"timestamp\", ts);\n current.appendChild(node);\n continue;\n }\n var m = t.match(/^<([^.\\s/0-9>]+)(\\.[^\\s\\\\>]+)?([^>\\\\]+)?(\\\\?)>?$/);\n // If we can't parse the tag, skip to the next tag.\n if (!m) {\n continue;\n }\n // Try to construct an element, and ignore the tag if we couldn't.\n node = createElement(m[1], m[3]);\n if (!node) {\n continue;\n }\n // Determine if the tag should be added based on the context of where it\n // is placed in the cuetext.\n if (!shouldAdd(current, node)) {\n continue;\n }\n // Set the class list (as a list of classes, separated by space).\n if (m[2]) {\n var classes = m[2].split('.');\n\n classes.forEach(function(cl) {\n var bgColor = /^bg_/.test(cl);\n // slice out `bg_` if it's a background color\n var colorName = bgColor ? cl.slice(3) : cl;\n\n if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {\n var propName = bgColor ? 'background-color' : 'color';\n var propValue = DEFAULT_COLOR_CLASS[colorName];\n\n node.style[propName] = propValue;\n }\n });\n\n node.className = classes.join(' ');\n }\n // Append the node to the current node, and enter the scope of the new\n // node.\n tagStack.push(m[1]);\n current.appendChild(node);\n current = node;\n continue;\n }\n\n // Text nodes are leaf nodes.\n current.appendChild(window.document.createTextNode(unescape(t)));\n }\n\n return rootDiv;\n}\n\n// This is a list of all the Unicode characters that have a strong\n// right-to-left category. What this means is that these characters are\n// written right-to-left for sure. It was generated by pulling all the strong\n// right-to-left characters out of the Unicode data table. That table can\n// found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt\nvar strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6],\n [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d],\n [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6],\n [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5],\n [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815],\n [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858],\n [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f],\n [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c],\n [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1],\n [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc],\n [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808],\n [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855],\n [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f],\n [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13],\n [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58],\n [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72],\n [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f],\n [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32],\n [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42],\n [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f],\n [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59],\n [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62],\n [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77],\n [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b],\n [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];\n\nfunction isStrongRTLChar(charCode) {\n for (var i = 0; i < strongRTLRanges.length; i++) {\n var currentRange = strongRTLRanges[i];\n if (charCode >= currentRange[0] && charCode <= currentRange[1]) {\n return true;\n }\n }\n\n return false;\n}\n\nfunction determineBidi(cueDiv) {\n var nodeStack = [],\n text = \"\",\n charCode;\n\n if (!cueDiv || !cueDiv.childNodes) {\n return \"ltr\";\n }\n\n function pushNodes(nodeStack, node) {\n for (var i = node.childNodes.length - 1; i >= 0; i--) {\n nodeStack.push(node.childNodes[i]);\n }\n }\n\n function nextTextNode(nodeStack) {\n if (!nodeStack || !nodeStack.length) {\n return null;\n }\n\n var node = nodeStack.pop(),\n text = node.textContent || node.innerText;\n if (text) {\n // TODO: This should match all unicode type B characters (paragraph\n // separator characters). See issue #115.\n var m = text.match(/^.*(\\n|\\r)/);\n if (m) {\n nodeStack.length = 0;\n return m[0];\n }\n return text;\n }\n if (node.tagName === \"ruby\") {\n return nextTextNode(nodeStack);\n }\n if (node.childNodes) {\n pushNodes(nodeStack, node);\n return nextTextNode(nodeStack);\n }\n }\n\n pushNodes(nodeStack, cueDiv);\n while ((text = nextTextNode(nodeStack))) {\n for (var i = 0; i < text.length; i++) {\n charCode = text.charCodeAt(i);\n if (isStrongRTLChar(charCode)) {\n return \"rtl\";\n }\n }\n }\n return \"ltr\";\n}\n\nfunction computeLinePos(cue) {\n if (typeof cue.line === \"number\" &&\n (cue.snapToLines || (cue.line >= 0 && cue.line <= 100))) {\n return cue.line;\n }\n if (!cue.track || !cue.track.textTrackList ||\n !cue.track.textTrackList.mediaElement) {\n return -1;\n }\n var track = cue.track,\n trackList = track.textTrackList,\n count = 0;\n for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {\n if (trackList[i].mode === \"showing\") {\n count++;\n }\n }\n return ++count * -1;\n}\n\nfunction StyleBox() {\n}\n\n// Apply styles to a div. If there is no div passed then it defaults to the\n// div on 'this'.\nStyleBox.prototype.applyStyles = function(styles, div) {\n div = div || this.div;\n for (var prop in styles) {\n if (styles.hasOwnProperty(prop)) {\n div.style[prop] = styles[prop];\n }\n }\n};\n\nStyleBox.prototype.formatStyle = function(val, unit) {\n return val === 0 ? 0 : val + unit;\n};\n\n// Constructs the computed display state of the cue (a div). Places the div\n// into the overlay which should be a block level element (usually a div).\nfunction CueStyleBox(window, cue, styleOptions) {\n StyleBox.call(this);\n this.cue = cue;\n\n // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will\n // have inline positioning and will function as the cue background box.\n this.cueDiv = parseContent(window, cue.text);\n var styles = {\n color: \"rgba(255, 255, 255, 1)\",\n backgroundColor: \"rgba(0, 0, 0, 0.8)\",\n position: \"relative\",\n left: 0,\n right: 0,\n top: 0,\n bottom: 0,\n display: \"inline\",\n writingMode: cue.vertical === \"\" ? \"horizontal-tb\"\n : cue.vertical === \"lr\" ? \"vertical-lr\"\n : \"vertical-rl\",\n unicodeBidi: \"plaintext\"\n };\n\n this.applyStyles(styles, this.cueDiv);\n\n // Create an absolutely positioned div that will be used to position the cue\n // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS\n // mirrors of them except middle instead of center on Safari.\n this.div = window.document.createElement(\"div\");\n styles = {\n direction: determineBidi(this.cueDiv),\n writingMode: cue.vertical === \"\" ? \"horizontal-tb\"\n : cue.vertical === \"lr\" ? \"vertical-lr\"\n : \"vertical-rl\",\n unicodeBidi: \"plaintext\",\n textAlign: cue.align === \"middle\" ? \"center\" : cue.align,\n font: styleOptions.font,\n whiteSpace: \"pre-line\",\n position: \"absolute\"\n };\n\n this.applyStyles(styles);\n this.div.appendChild(this.cueDiv);\n\n // Calculate the distance from the reference edge of the viewport to the text\n // position of the cue box. The reference edge will be resolved later when\n // the box orientation styles are applied.\n var textPos = 0;\n switch (cue.positionAlign) {\n case \"start\":\n case \"line-left\":\n textPos = cue.position;\n break;\n case \"center\":\n textPos = cue.position - (cue.size / 2);\n break;\n case \"end\":\n case \"line-right\":\n textPos = cue.position - cue.size;\n break;\n }\n\n // Horizontal box orientation; textPos is the distance from the left edge of the\n // area to the left edge of the box and cue.size is the distance extending to\n // the right from there.\n if (cue.vertical === \"\") {\n this.applyStyles({\n left: this.formatStyle(textPos, \"%\"),\n width: this.formatStyle(cue.size, \"%\")\n });\n // Vertical box orientation; textPos is the distance from the top edge of the\n // area to the top edge of the box and cue.size is the height extending\n // downwards from there.\n } else {\n this.applyStyles({\n top: this.formatStyle(textPos, \"%\"),\n height: this.formatStyle(cue.size, \"%\")\n });\n }\n\n this.move = function(box) {\n this.applyStyles({\n top: this.formatStyle(box.top, \"px\"),\n bottom: this.formatStyle(box.bottom, \"px\"),\n left: this.formatStyle(box.left, \"px\"),\n right: this.formatStyle(box.right, \"px\"),\n height: this.formatStyle(box.height, \"px\"),\n width: this.formatStyle(box.width, \"px\")\n });\n };\n}\nCueStyleBox.prototype = _objCreate(StyleBox.prototype);\nCueStyleBox.prototype.constructor = CueStyleBox;\n\n// Represents the co-ordinates of an Element in a way that we can easily\n// compute things with such as if it overlaps or intersects with another Element.\n// Can initialize it with either a StyleBox or another BoxPosition.\nfunction BoxPosition(obj) {\n // Either a BoxPosition was passed in and we need to copy it, or a StyleBox\n // was passed in and we need to copy the results of 'getBoundingClientRect'\n // as the object returned is readonly. All co-ordinate values are in reference\n // to the viewport origin (top left).\n var lh, height, width, top;\n if (obj.div) {\n height = obj.div.offsetHeight;\n width = obj.div.offsetWidth;\n top = obj.div.offsetTop;\n\n var rects = (rects = obj.div.childNodes) && (rects = rects[0]) &&\n rects.getClientRects && rects.getClientRects();\n obj = obj.div.getBoundingClientRect();\n // In certain cases the outter div will be slightly larger then the sum of\n // the inner div's lines. This could be due to bold text, etc, on some platforms.\n // In this case we should get the average line height and use that. This will\n // result in the desired behaviour.\n lh = rects ? Math.max((rects[0] && rects[0].height) || 0, obj.height / rects.length)\n : 0;\n\n }\n this.left = obj.left;\n this.right = obj.right;\n this.top = obj.top || top;\n this.height = obj.height || height;\n this.bottom = obj.bottom || (top + (obj.height || height));\n this.width = obj.width || width;\n this.lineHeight = lh !== undefined ? lh : obj.lineHeight;\n}\n\n// Move the box along a particular axis. Optionally pass in an amount to move\n// the box. If no amount is passed then the default is the line height of the\n// box.\nBoxPosition.prototype.move = function(axis, toMove) {\n toMove = toMove !== undefined ? toMove : this.lineHeight;\n switch (axis) {\n case \"+x\":\n this.left += toMove;\n this.right += toMove;\n break;\n case \"-x\":\n this.left -= toMove;\n this.right -= toMove;\n break;\n case \"+y\":\n this.top += toMove;\n this.bottom += toMove;\n break;\n case \"-y\":\n this.top -= toMove;\n this.bottom -= toMove;\n break;\n }\n};\n\n// Check if this box overlaps another box, b2.\nBoxPosition.prototype.overlaps = function(b2) {\n return this.left < b2.right &&\n this.right > b2.left &&\n this.top < b2.bottom &&\n this.bottom > b2.top;\n};\n\n// Check if this box overlaps any other boxes in boxes.\nBoxPosition.prototype.overlapsAny = function(boxes) {\n for (var i = 0; i < boxes.length; i++) {\n if (this.overlaps(boxes[i])) {\n return true;\n }\n }\n return false;\n};\n\n// Check if this box is within another box.\nBoxPosition.prototype.within = function(container) {\n return this.top >= container.top &&\n this.bottom <= container.bottom &&\n this.left >= container.left &&\n this.right <= container.right;\n};\n\n// Check if this box is entirely within the container or it is overlapping\n// on the edge opposite of the axis direction passed. For example, if \"+x\" is\n// passed and the box is overlapping on the left edge of the container, then\n// return true.\nBoxPosition.prototype.overlapsOppositeAxis = function(container, axis) {\n switch (axis) {\n case \"+x\":\n return this.left < container.left;\n case \"-x\":\n return this.right > container.right;\n case \"+y\":\n return this.top < container.top;\n case \"-y\":\n return this.bottom > container.bottom;\n }\n};\n\n// Find the percentage of the area that this box is overlapping with another\n// box.\nBoxPosition.prototype.intersectPercentage = function(b2) {\n var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),\n y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),\n intersectArea = x * y;\n return intersectArea / (this.height * this.width);\n};\n\n// Convert the positions from this box to CSS compatible positions using\n// the reference container's positions. This has to be done because this\n// box's positions are in reference to the viewport origin, whereas, CSS\n// values are in referecne to their respective edges.\nBoxPosition.prototype.toCSSCompatValues = function(reference) {\n return {\n top: this.top - reference.top,\n bottom: reference.bottom - this.bottom,\n left: this.left - reference.left,\n right: reference.right - this.right,\n height: this.height,\n width: this.width\n };\n};\n\n// Get an object that represents the box's position without anything extra.\n// Can pass a StyleBox, HTMLElement, or another BoxPositon.\nBoxPosition.getSimpleBoxPosition = function(obj) {\n var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;\n var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;\n var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;\n\n obj = obj.div ? obj.div.getBoundingClientRect() :\n obj.tagName ? obj.getBoundingClientRect() : obj;\n var ret = {\n left: obj.left,\n right: obj.right,\n top: obj.top || top,\n height: obj.height || height,\n bottom: obj.bottom || (top + (obj.height || height)),\n width: obj.width || width\n };\n return ret;\n};\n\n// Move a StyleBox to its specified, or next best, position. The containerBox\n// is the box that contains the StyleBox, such as a div. boxPositions are\n// a list of other boxes that the styleBox can't overlap with.\nfunction moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {\n\n // Find the best position for a cue box, b, on the video. The axis parameter\n // is a list of axis, the order of which, it will move the box along. For example:\n // Passing [\"+x\", \"-x\"] will move the box first along the x axis in the positive\n // direction. If it doesn't find a good position for it there it will then move\n // it along the x axis in the negative direction.\n function findBestPosition(b, axis) {\n var bestPosition,\n specifiedPosition = new BoxPosition(b),\n percentage = 1; // Highest possible so the first thing we get is better.\n\n for (var i = 0; i < axis.length; i++) {\n while (b.overlapsOppositeAxis(containerBox, axis[i]) ||\n (b.within(containerBox) && b.overlapsAny(boxPositions))) {\n b.move(axis[i]);\n }\n // We found a spot where we aren't overlapping anything. This is our\n // best position.\n if (b.within(containerBox)) {\n return b;\n }\n var p = b.intersectPercentage(containerBox);\n // If we're outside the container box less then we were on our last try\n // then remember this position as the best position.\n if (percentage > p) {\n bestPosition = new BoxPosition(b);\n percentage = p;\n }\n // Reset the box position to the specified position.\n b = new BoxPosition(specifiedPosition);\n }\n return bestPosition || specifiedPosition;\n }\n\n var boxPosition = new BoxPosition(styleBox),\n cue = styleBox.cue,\n linePos = computeLinePos(cue),\n axis = [];\n\n // If we have a line number to align the cue to.\n if (cue.snapToLines) {\n var size;\n switch (cue.vertical) {\n case \"\":\n axis = [ \"+y\", \"-y\" ];\n size = \"height\";\n break;\n case \"rl\":\n axis = [ \"+x\", \"-x\" ];\n size = \"width\";\n break;\n case \"lr\":\n axis = [ \"-x\", \"+x\" ];\n size = \"width\";\n break;\n }\n\n var step = boxPosition.lineHeight,\n position = step * Math.round(linePos),\n maxPosition = containerBox[size] + step,\n initialAxis = axis[0];\n\n // If the specified intial position is greater then the max position then\n // clamp the box to the amount of steps it would take for the box to\n // reach the max position.\n if (Math.abs(position) > maxPosition) {\n position = position < 0 ? -1 : 1;\n position *= Math.ceil(maxPosition / step) * step;\n }\n\n // If computed line position returns negative then line numbers are\n // relative to the bottom of the video instead of the top. Therefore, we\n // need to increase our initial position by the length or width of the\n // video, depending on the writing direction, and reverse our axis directions.\n if (linePos < 0) {\n position += cue.vertical === \"\" ? containerBox.height : containerBox.width;\n axis = axis.reverse();\n }\n\n // Move the box to the specified position. This may not be its best\n // position.\n boxPosition.move(initialAxis, position);\n\n } else {\n // If we have a percentage line value for the cue.\n var calculatedPercentage = (boxPosition.lineHeight / containerBox.height) * 100;\n\n switch (cue.lineAlign) {\n case \"center\":\n linePos -= (calculatedPercentage / 2);\n break;\n case \"end\":\n linePos -= calculatedPercentage;\n break;\n }\n\n // Apply initial line position to the cue box.\n switch (cue.vertical) {\n case \"\":\n styleBox.applyStyles({\n top: styleBox.formatStyle(linePos, \"%\")\n });\n break;\n case \"rl\":\n styleBox.applyStyles({\n left: styleBox.formatStyle(linePos, \"%\")\n });\n break;\n case \"lr\":\n styleBox.applyStyles({\n right: styleBox.formatStyle(linePos, \"%\")\n });\n break;\n }\n\n axis = [ \"+y\", \"-x\", \"+x\", \"-y\" ];\n\n // Get the box position again after we've applied the specified positioning\n // to it.\n boxPosition = new BoxPosition(styleBox);\n }\n\n var bestPosition = findBestPosition(boxPosition, axis);\n styleBox.move(bestPosition.toCSSCompatValues(containerBox));\n}\n\nfunction WebVTT() {\n // Nothing\n}\n\n// Helper to allow strings to be decoded instead of the default binary utf8 data.\nWebVTT.StringDecoder = function() {\n return {\n decode: function(data) {\n if (!data) {\n return \"\";\n }\n if (typeof data !== \"string\") {\n throw new Error(\"Error - expected string data.\");\n }\n return decodeURIComponent(encodeURIComponent(data));\n }\n };\n};\n\nWebVTT.convertCueToDOMTree = function(window, cuetext) {\n if (!window || !cuetext) {\n return null;\n }\n return parseContent(window, cuetext);\n};\n\nvar FONT_SIZE_PERCENT = 0.05;\nvar FONT_STYLE = \"sans-serif\";\nvar CUE_BACKGROUND_PADDING = \"1.5%\";\n\n// Runs the processing model over the cues and regions passed to it.\n// @param overlay A block level element (usually a div) that the computed cues\n// and regions will be placed into.\nWebVTT.processCues = function(window, cues, overlay) {\n if (!window || !cues || !overlay) {\n return null;\n }\n\n // Remove all previous children.\n while (overlay.firstChild) {\n overlay.removeChild(overlay.firstChild);\n }\n\n var paddedOverlay = window.document.createElement(\"div\");\n paddedOverlay.style.position = \"absolute\";\n paddedOverlay.style.left = \"0\";\n paddedOverlay.style.right = \"0\";\n paddedOverlay.style.top = \"0\";\n paddedOverlay.style.bottom = \"0\";\n paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;\n overlay.appendChild(paddedOverlay);\n\n // Determine if we need to compute the display states of the cues. This could\n // be the case if a cue's state has been changed since the last computation or\n // if it has not been computed yet.\n function shouldCompute(cues) {\n for (var i = 0; i < cues.length; i++) {\n if (cues[i].hasBeenReset || !cues[i].displayState) {\n return true;\n }\n }\n return false;\n }\n\n // We don't need to recompute the cues' display states. Just reuse them.\n if (!shouldCompute(cues)) {\n for (var i = 0; i < cues.length; i++) {\n paddedOverlay.appendChild(cues[i].displayState);\n }\n return;\n }\n\n var boxPositions = [],\n containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),\n fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;\n var styleOptions = {\n font: fontSize + \"px \" + FONT_STYLE\n };\n\n (function() {\n var styleBox, cue;\n\n for (var i = 0; i < cues.length; i++) {\n cue = cues[i];\n\n // Compute the intial position and styles of the cue div.\n styleBox = new CueStyleBox(window, cue, styleOptions);\n paddedOverlay.appendChild(styleBox.div);\n\n // Move the cue div to it's correct line position.\n moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);\n\n // Remember the computed div so that we don't have to recompute it later\n // if we don't have too.\n cue.displayState = styleBox.div;\n\n boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));\n }\n })();\n};\n\nWebVTT.Parser = function(window, vttjs, decoder) {\n if (!decoder) {\n decoder = vttjs;\n vttjs = {};\n }\n if (!vttjs) {\n vttjs = {};\n }\n\n this.window = window;\n this.vttjs = vttjs;\n this.state = \"INITIAL\";\n this.buffer = \"\";\n this.decoder = decoder || new TextDecoder(\"utf8\");\n this.regionList = [];\n};\n\nWebVTT.Parser.prototype = {\n // If the error is a ParsingError then report it to the consumer if\n // possible. If it's not a ParsingError then throw it like normal.\n reportOrThrowError: function(e) {\n if (e instanceof ParsingError) {\n this.onparsingerror && this.onparsingerror(e);\n } else {\n throw e;\n }\n },\n parse: function (data) {\n var self = this;\n\n // If there is no data then we won't decode it, but will just try to parse\n // whatever is in buffer already. This may occur in circumstances, for\n // example when flush() is called.\n if (data) {\n // Try to decode the data that we received.\n self.buffer += self.decoder.decode(data, {stream: true});\n }\n\n function collectNextLine() {\n var buffer = self.buffer;\n var pos = 0;\n while (pos < buffer.length && buffer[pos] !== '\\r' && buffer[pos] !== '\\n') {\n ++pos;\n }\n var line = buffer.substr(0, pos);\n // Advance the buffer early in case we fail below.\n if (buffer[pos] === '\\r') {\n ++pos;\n }\n if (buffer[pos] === '\\n') {\n ++pos;\n }\n self.buffer = buffer.substr(pos);\n return line;\n }\n\n // 3.4 WebVTT region and WebVTT region settings syntax\n function parseRegion(input) {\n var settings = new Settings();\n\n parseOptions(input, function (k, v) {\n switch (k) {\n case \"id\":\n settings.set(k, v);\n break;\n case \"width\":\n settings.percent(k, v);\n break;\n case \"lines\":\n settings.integer(k, v);\n break;\n case \"regionanchor\":\n case \"viewportanchor\":\n var xy = v.split(',');\n if (xy.length !== 2) {\n break;\n }\n // We have to make sure both x and y parse, so use a temporary\n // settings object here.\n var anchor = new Settings();\n anchor.percent(\"x\", xy[0]);\n anchor.percent(\"y\", xy[1]);\n if (!anchor.has(\"x\") || !anchor.has(\"y\")) {\n break;\n }\n settings.set(k + \"X\", anchor.get(\"x\"));\n settings.set(k + \"Y\", anchor.get(\"y\"));\n break;\n case \"scroll\":\n settings.alt(k, v, [\"up\"]);\n break;\n }\n }, /=/, /\\s/);\n\n // Create the region, using default values for any values that were not\n // specified.\n if (settings.has(\"id\")) {\n var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();\n region.width = settings.get(\"width\", 100);\n region.lines = settings.get(\"lines\", 3);\n region.regionAnchorX = settings.get(\"regionanchorX\", 0);\n region.regionAnchorY = settings.get(\"regionanchorY\", 100);\n region.viewportAnchorX = settings.get(\"viewportanchorX\", 0);\n region.viewportAnchorY = settings.get(\"viewportanchorY\", 100);\n region.scroll = settings.get(\"scroll\", \"\");\n // Register the region.\n self.onregion && self.onregion(region);\n // Remember the VTTRegion for later in case we parse any VTTCues that\n // reference it.\n self.regionList.push({\n id: settings.get(\"id\"),\n region: region\n });\n }\n }\n\n // draft-pantos-http-live-streaming-20\n // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5\n // 3.5 WebVTT\n function parseTimestampMap(input) {\n var settings = new Settings();\n\n parseOptions(input, function(k, v) {\n switch(k) {\n case \"MPEGT\":\n settings.integer(k + 'S', v);\n break;\n case \"LOCA\":\n settings.set(k + 'L', parseTimeStamp(v));\n break;\n }\n }, /[^\\d]:/, /,/);\n\n self.ontimestampmap && self.ontimestampmap({\n \"MPEGTS\": settings.get(\"MPEGTS\"),\n \"LOCAL\": settings.get(\"LOCAL\")\n });\n }\n\n // 3.2 WebVTT metadata header syntax\n function parseHeader(input) {\n if (input.match(/X-TIMESTAMP-MAP/)) {\n // This line contains HLS X-TIMESTAMP-MAP metadata\n parseOptions(input, function(k, v) {\n switch(k) {\n case \"X-TIMESTAMP-MAP\":\n parseTimestampMap(v);\n break;\n }\n }, /=/);\n } else {\n parseOptions(input, function (k, v) {\n switch (k) {\n case \"Region\":\n // 3.3 WebVTT region metadata header syntax\n parseRegion(v);\n break;\n }\n }, /:/);\n }\n\n }\n\n // 5.1 WebVTT file parsing.\n try {\n var line;\n if (self.state === \"INITIAL\") {\n // We can't start parsing until we have the first line.\n if (!/\\r\\n|\\n/.test(self.buffer)) {\n return this;\n }\n\n line = collectNextLine();\n\n var m = line.match(/^WEBVTT([ \\t].*)?$/);\n if (!m || !m[0]) {\n throw new ParsingError(ParsingError.Errors.BadSignature);\n }\n\n self.state = \"HEADER\";\n }\n\n var alreadyCollectedLine = false;\n while (self.buffer) {\n // We can't parse a line until we have the full line.\n if (!/\\r\\n|\\n/.test(self.buffer)) {\n return this;\n }\n\n if (!alreadyCollectedLine) {\n line = collectNextLine();\n } else {\n alreadyCollectedLine = false;\n }\n\n switch (self.state) {\n case \"HEADER\":\n // 13-18 - Allow a header (metadata) under the WEBVTT line.\n if (/:/.test(line)) {\n parseHeader(line);\n } else if (!line) {\n // An empty line terminates the header and starts the body (cues).\n self.state = \"ID\";\n }\n continue;\n case \"NOTE\":\n // Ignore NOTE blocks.\n if (!line) {\n self.state = \"ID\";\n }\n continue;\n case \"ID\":\n // Check for the start of NOTE blocks.\n if (/^NOTE($|[ \\t])/.test(line)) {\n self.state = \"NOTE\";\n break;\n }\n // 19-29 - Allow any number of line terminators, then initialize new cue values.\n if (!line) {\n continue;\n }\n self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, \"\");\n // Safari still uses the old middle value and won't accept center\n try {\n self.cue.align = \"center\";\n } catch (e) {\n self.cue.align = \"middle\";\n }\n self.state = \"CUE\";\n // 30-39 - Check if self line contains an optional identifier or timing data.\n if (line.indexOf(\"-->\") === -1) {\n self.cue.id = line;\n continue;\n }\n // Process line as start of a cue.\n /*falls through*/\n case \"CUE\":\n // 40 - Collect cue timings and settings.\n try {\n parseCue(line, self.cue, self.regionList);\n } catch (e) {\n self.reportOrThrowError(e);\n // In case of an error ignore rest of the cue.\n self.cue = null;\n self.state = \"BADCUE\";\n continue;\n }\n self.state = \"CUETEXT\";\n continue;\n case \"CUETEXT\":\n var hasSubstring = line.indexOf(\"-->\") !== -1;\n // 34 - If we have an empty line then report the cue.\n // 35 - If we have the special substring '-->' then report the cue,\n // but do not collect the line as we need to process the current\n // one as a new cue.\n if (!line || hasSubstring && (alreadyCollectedLine = true)) {\n // We are done parsing self cue.\n self.oncue && self.oncue(self.cue);\n self.cue = null;\n self.state = \"ID\";\n continue;\n }\n if (self.cue.text) {\n self.cue.text += \"\\n\";\n }\n self.cue.text += line.replace(/\\u2028/g, '\\n').replace(/u2029/g, '\\n');\n continue;\n case \"BADCUE\": // BADCUE\n // 54-62 - Collect and discard the remaining cue.\n if (!line) {\n self.state = \"ID\";\n }\n continue;\n }\n }\n } catch (e) {\n self.reportOrThrowError(e);\n\n // If we are currently parsing a cue, report what we have.\n if (self.state === \"CUETEXT\" && self.cue && self.oncue) {\n self.oncue(self.cue);\n }\n self.cue = null;\n // Enter BADWEBVTT state if header was not parsed correctly otherwise\n // another exception occurred so enter BADCUE state.\n self.state = self.state === \"INITIAL\" ? \"BADWEBVTT\" : \"BADCUE\";\n }\n return this;\n },\n flush: function () {\n var self = this;\n try {\n // Finish decoding the stream.\n self.buffer += self.decoder.decode();\n // Synthesize the end of the current cue or region.\n if (self.cue || self.state === \"HEADER\") {\n self.buffer += \"\\n\\n\";\n self.parse();\n }\n // If we've flushed, parsed, and we're still on the INITIAL state then\n // that means we don't have enough of the stream to parse the first\n // line.\n if (self.state === \"INITIAL\") {\n throw new ParsingError(ParsingError.Errors.BadSignature);\n }\n } catch(e) {\n self.reportOrThrowError(e);\n }\n self.onflush && self.onflush();\n return this;\n }\n};\n\nmodule.exports = WebVTT;\n", "/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar autoKeyword = \"auto\";\nvar directionSetting = {\n \"\": 1,\n \"lr\": 1,\n \"rl\": 1\n};\nvar alignSetting = {\n \"start\": 1,\n \"center\": 1,\n \"end\": 1,\n \"left\": 1,\n \"right\": 1,\n \"auto\": 1,\n \"line-left\": 1,\n \"line-right\": 1\n};\n\nfunction findDirectionSetting(value) {\n if (typeof value !== \"string\") {\n return false;\n }\n var dir = directionSetting[value.toLowerCase()];\n return dir ? value.toLowerCase() : false;\n}\n\nfunction findAlignSetting(value) {\n if (typeof value !== \"string\") {\n return false;\n }\n var align = alignSetting[value.toLowerCase()];\n return align ? value.toLowerCase() : false;\n}\n\nfunction VTTCue(startTime, endTime, text) {\n /**\n * Shim implementation specific properties. These properties are not in\n * the spec.\n */\n\n // Lets us know when the VTTCue's data has changed in such a way that we need\n // to recompute its display state. This lets us compute its display state\n // lazily.\n this.hasBeenReset = false;\n\n /**\n * VTTCue and TextTrackCue properties\n * http://dev.w3.org/html5/webvtt/#vttcue-interface\n */\n\n var _id = \"\";\n var _pauseOnExit = false;\n var _startTime = startTime;\n var _endTime = endTime;\n var _text = text;\n var _region = null;\n var _vertical = \"\";\n var _snapToLines = true;\n var _line = \"auto\";\n var _lineAlign = \"start\";\n var _position = \"auto\";\n var _positionAlign = \"auto\";\n var _size = 100;\n var _align = \"center\";\n\n Object.defineProperties(this, {\n \"id\": {\n enumerable: true,\n get: function() {\n return _id;\n },\n set: function(value) {\n _id = \"\" + value;\n }\n },\n\n \"pauseOnExit\": {\n enumerable: true,\n get: function() {\n return _pauseOnExit;\n },\n set: function(value) {\n _pauseOnExit = !!value;\n }\n },\n\n \"startTime\": {\n enumerable: true,\n get: function() {\n return _startTime;\n },\n set: function(value) {\n if (typeof value !== \"number\") {\n throw new TypeError(\"Start time must be set to a number.\");\n }\n _startTime = value;\n this.hasBeenReset = true;\n }\n },\n\n \"endTime\": {\n enumerable: true,\n get: function() {\n return _endTime;\n },\n set: function(value) {\n if (typeof value !== \"number\") {\n throw new TypeError(\"End time must be set to a number.\");\n }\n _endTime = value;\n this.hasBeenReset = true;\n }\n },\n\n \"text\": {\n enumerable: true,\n get: function() {\n return _text;\n },\n set: function(value) {\n _text = \"\" + value;\n this.hasBeenReset = true;\n }\n },\n\n \"region\": {\n enumerable: true,\n get: function() {\n return _region;\n },\n set: function(value) {\n _region = value;\n this.hasBeenReset = true;\n }\n },\n\n \"vertical\": {\n enumerable: true,\n get: function() {\n return _vertical;\n },\n set: function(value) {\n var setting = findDirectionSetting(value);\n // Have to check for false because the setting an be an empty string.\n if (setting === false) {\n throw new SyntaxError(\"Vertical: an invalid or illegal direction string was specified.\");\n }\n _vertical = setting;\n this.hasBeenReset = true;\n }\n },\n\n \"snapToLines\": {\n enumerable: true,\n get: function() {\n return _snapToLines;\n },\n set: function(value) {\n _snapToLines = !!value;\n this.hasBeenReset = true;\n }\n },\n\n \"line\": {\n enumerable: true,\n get: function() {\n return _line;\n },\n set: function(value) {\n if (typeof value !== \"number\" && value !== autoKeyword) {\n throw new SyntaxError(\"Line: an invalid number or illegal string was specified.\");\n }\n _line = value;\n this.hasBeenReset = true;\n }\n },\n\n \"lineAlign\": {\n enumerable: true,\n get: function() {\n return _lineAlign;\n },\n set: function(value) {\n var setting = findAlignSetting(value);\n if (!setting) {\n console.warn(\"lineAlign: an invalid or illegal string was specified.\");\n } else {\n _lineAlign = setting;\n this.hasBeenReset = true;\n }\n }\n },\n\n \"position\": {\n enumerable: true,\n get: function() {\n return _position;\n },\n set: function(value) {\n if (value < 0 || value > 100) {\n throw new Error(\"Position must be between 0 and 100.\");\n }\n _position = value;\n this.hasBeenReset = true;\n }\n },\n\n \"positionAlign\": {\n enumerable: true,\n get: function() {\n return _positionAlign;\n },\n set: function(value) {\n var setting = findAlignSetting(value);\n if (!setting) {\n console.warn(\"positionAlign: an invalid or illegal string was specified.\");\n } else {\n _positionAlign = setting;\n this.hasBeenReset = true;\n }\n }\n },\n\n \"size\": {\n enumerable: true,\n get: function() {\n return _size;\n },\n set: function(value) {\n if (value < 0 || value > 100) {\n throw new Error(\"Size must be between 0 and 100.\");\n }\n _size = value;\n this.hasBeenReset = true;\n }\n },\n\n \"align\": {\n enumerable: true,\n get: function() {\n return _align;\n },\n set: function(value) {\n var setting = findAlignSetting(value);\n if (!setting) {\n throw new SyntaxError(\"align: an invalid or illegal alignment string was specified.\");\n }\n _align = setting;\n this.hasBeenReset = true;\n }\n }\n });\n\n /**\n * Other spec defined properties\n */\n\n // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state\n this.displayState = undefined;\n}\n\n/**\n * VTTCue methods\n */\n\nVTTCue.prototype.getCueAsHTML = function() {\n // Assume WebVTT.convertCueToDOMTree is on the global.\n return WebVTT.convertCueToDOMTree(window, this.text);\n};\n\nmodule.exports = VTTCue;\n", "/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar scrollSetting = {\n \"\": true,\n \"up\": true\n};\n\nfunction findScrollSetting(value) {\n if (typeof value !== \"string\") {\n return false;\n }\n var scroll = scrollSetting[value.toLowerCase()];\n return scroll ? value.toLowerCase() : false;\n}\n\nfunction isValidPercentValue(value) {\n return typeof value === \"number\" && (value >= 0 && value <= 100);\n}\n\n// VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface\nfunction VTTRegion() {\n var _width = 100;\n var _lines = 3;\n var _regionAnchorX = 0;\n var _regionAnchorY = 100;\n var _viewportAnchorX = 0;\n var _viewportAnchorY = 100;\n var _scroll = \"\";\n\n Object.defineProperties(this, {\n \"width\": {\n enumerable: true,\n get: function() {\n return _width;\n },\n set: function(value) {\n if (!isValidPercentValue(value)) {\n throw new Error(\"Width must be between 0 and 100.\");\n }\n _width = value;\n }\n },\n \"lines\": {\n enumerable: true,\n get: function() {\n return _lines;\n },\n set: function(value) {\n if (typeof value !== \"number\") {\n throw new TypeError(\"Lines must be set to a number.\");\n }\n _lines = value;\n }\n },\n \"regionAnchorY\": {\n enumerable: true,\n get: function() {\n return _regionAnchorY;\n },\n set: function(value) {\n if (!isValidPercentValue(value)) {\n throw new Error(\"RegionAnchorX must be between 0 and 100.\");\n }\n _regionAnchorY = value;\n }\n },\n \"regionAnchorX\": {\n enumerable: true,\n get: function() {\n return _regionAnchorX;\n },\n set: function(value) {\n if(!isValidPercentValue(value)) {\n throw new Error(\"RegionAnchorY must be between 0 and 100.\");\n }\n _regionAnchorX = value;\n }\n },\n \"viewportAnchorY\": {\n enumerable: true,\n get: function() {\n return _viewportAnchorY;\n },\n set: function(value) {\n if (!isValidPercentValue(value)) {\n throw new Error(\"ViewportAnchorY must be between 0 and 100.\");\n }\n _viewportAnchorY = value;\n }\n },\n \"viewportAnchorX\": {\n enumerable: true,\n get: function() {\n return _viewportAnchorX;\n },\n set: function(value) {\n if (!isValidPercentValue(value)) {\n throw new Error(\"ViewportAnchorX must be between 0 and 100.\");\n }\n _viewportAnchorX = value;\n }\n },\n \"scroll\": {\n enumerable: true,\n get: function() {\n return _scroll;\n },\n set: function(value) {\n var setting = findScrollSetting(value);\n // Have to check for false as an empty string is a legal value.\n if (setting === false) {\n console.warn(\"Scroll: an invalid or illegal string was specified.\");\n } else {\n _scroll = setting;\n }\n }\n }\n });\n}\n\nmodule.exports = VTTRegion;\n", "/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n// Default exports for Node. Export the extended versions of VTTCue and\n// VTTRegion in Node since we likely want the capability to convert back and\n// forth between JSON. If we don't then it's not that big of a deal since we're\n// off browser.\n\nvar window = require('global/window');\n\nvar vttjs = module.exports = {\n WebVTT: require(\"./vtt.js\"),\n VTTCue: require(\"./vttcue.js\"),\n VTTRegion: require(\"./vttregion.js\")\n};\n\nwindow.vttjs = vttjs;\nwindow.WebVTT = vttjs.WebVTT;\n\nvar cueShim = vttjs.VTTCue;\nvar regionShim = vttjs.VTTRegion;\nvar nativeVTTCue = window.VTTCue;\nvar nativeVTTRegion = window.VTTRegion;\n\nvttjs.shim = function() {\n window.VTTCue = cueShim;\n window.VTTRegion = regionShim;\n};\n\nvttjs.restore = function() {\n window.VTTCue = nativeVTTCue;\n window.VTTRegion = nativeVTTRegion;\n};\n\nif (!window.VTTCue) {\n vttjs.shim();\n}\n", "function _isNativeReflectConstruct() {\n try {\n var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));\n } catch (t) {}\n return (module.exports = _isNativeReflectConstruct = function _isNativeReflectConstruct() {\n return !!t;\n }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports)();\n}\nmodule.exports = _isNativeReflectConstruct, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "var isNativeReflectConstruct = require(\"./isNativeReflectConstruct.js\");\nvar setPrototypeOf = require(\"./setPrototypeOf.js\");\nfunction _construct(t, e, r) {\n if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);\n var o = [null];\n o.push.apply(o, e);\n var p = new (t.bind.apply(t, o))();\n return r && setPrototypeOf(p, r.prototype), p;\n}\nmodule.exports = _construct, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "var setPrototypeOf = require(\"./setPrototypeOf.js\");\nfunction _inherits(t, e) {\n if (\"function\" != typeof e && null !== e) throw new TypeError(\"Super expression must either be null or a function\");\n t.prototype = Object.create(e && e.prototype, {\n constructor: {\n value: t,\n writable: !0,\n configurable: !0\n }\n }), Object.defineProperty(t, \"prototype\", {\n writable: !1\n }), e && setPrototypeOf(t, e);\n}\nmodule.exports = _inherits, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "function _interopRequireDefault(e) {\n return e && e.__esModule ? e : {\n \"default\": e\n };\n}\nmodule.exports = _interopRequireDefault, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "// see https://tools.ietf.org/html/rfc1808\n\n(function (root) {\n var URL_REGEX =\n /^(?=((?:[a-zA-Z0-9+\\-.]+:)?))\\1(?=((?:\\/\\/[^\\/?#]*)?))\\2(?=((?:(?:[^?#\\/]*\\/)*[^;?#\\/]*)?))\\3((?:;[^?#]*)?)(\\?[^#]*)?(#[^]*)?$/;\n var FIRST_SEGMENT_REGEX = /^(?=([^\\/?#]*))\\1([^]*)$/;\n var SLASH_DOT_REGEX = /(?:\\/|^)\\.(?=\\/)/g;\n var SLASH_DOT_DOT_REGEX = /(?:\\/|^)\\.\\.\\/(?!\\.\\.\\/)[^\\/]*(?=\\/)/g;\n\n var URLToolkit = {\n // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //\n // E.g\n // With opts.alwaysNormalize = false (default, spec compliant)\n // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g\n // With opts.alwaysNormalize = true (not spec compliant)\n // http://a.com/b/cd + /e/f/../g => http://a.com/e/g\n buildAbsoluteURL: function (baseURL, relativeURL, opts) {\n opts = opts || {};\n // remove any remaining space and CRLF\n baseURL = baseURL.trim();\n relativeURL = relativeURL.trim();\n if (!relativeURL) {\n // 2a) If the embedded URL is entirely empty, it inherits the\n // entire base URL (i.e., is set equal to the base URL)\n // and we are done.\n if (!opts.alwaysNormalize) {\n return baseURL;\n }\n var basePartsForNormalise = URLToolkit.parseURL(baseURL);\n if (!basePartsForNormalise) {\n throw new Error('Error trying to parse base URL.');\n }\n basePartsForNormalise.path = URLToolkit.normalizePath(\n basePartsForNormalise.path\n );\n return URLToolkit.buildURLFromParts(basePartsForNormalise);\n }\n var relativeParts = URLToolkit.parseURL(relativeURL);\n if (!relativeParts) {\n throw new Error('Error trying to parse relative URL.');\n }\n if (relativeParts.scheme) {\n // 2b) If the embedded URL starts with a scheme name, it is\n // interpreted as an absolute URL and we are done.\n if (!opts.alwaysNormalize) {\n return relativeURL;\n }\n relativeParts.path = URLToolkit.normalizePath(relativeParts.path);\n return URLToolkit.buildURLFromParts(relativeParts);\n }\n var baseParts = URLToolkit.parseURL(baseURL);\n if (!baseParts) {\n throw new Error('Error trying to parse base URL.');\n }\n if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {\n // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc\n // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'\n var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);\n baseParts.netLoc = pathParts[1];\n baseParts.path = pathParts[2];\n }\n if (baseParts.netLoc && !baseParts.path) {\n baseParts.path = '/';\n }\n var builtParts = {\n // 2c) Otherwise, the embedded URL inherits the scheme of\n // the base URL.\n scheme: baseParts.scheme,\n netLoc: relativeParts.netLoc,\n path: null,\n params: relativeParts.params,\n query: relativeParts.query,\n fragment: relativeParts.fragment,\n };\n if (!relativeParts.netLoc) {\n // 3) If the embedded URL's is non-empty, we skip to\n // Step 7. Otherwise, the embedded URL inherits the \n // (if any) of the base URL.\n builtParts.netLoc = baseParts.netLoc;\n // 4) If the embedded URL path is preceded by a slash \"/\", the\n // path is not relative and we skip to Step 7.\n if (relativeParts.path[0] !== '/') {\n if (!relativeParts.path) {\n // 5) If the embedded URL path is empty (and not preceded by a\n // slash), then the embedded URL inherits the base URL path\n builtParts.path = baseParts.path;\n // 5a) if the embedded URL's is non-empty, we skip to\n // step 7; otherwise, it inherits the of the base\n // URL (if any) and\n if (!relativeParts.params) {\n builtParts.params = baseParts.params;\n // 5b) if the embedded URL's is non-empty, we skip to\n // step 7; otherwise, it inherits the of the base\n // URL (if any) and we skip to step 7.\n if (!relativeParts.query) {\n builtParts.query = baseParts.query;\n }\n }\n } else {\n // 6) The last segment of the base URL's path (anything\n // following the rightmost slash \"/\", or the entire path if no\n // slash is present) is removed and the embedded URL's path is\n // appended in its place.\n var baseURLPath = baseParts.path;\n var newPath =\n baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) +\n relativeParts.path;\n builtParts.path = URLToolkit.normalizePath(newPath);\n }\n }\n }\n if (builtParts.path === null) {\n builtParts.path = opts.alwaysNormalize\n ? URLToolkit.normalizePath(relativeParts.path)\n : relativeParts.path;\n }\n return URLToolkit.buildURLFromParts(builtParts);\n },\n parseURL: function (url) {\n var parts = URL_REGEX.exec(url);\n if (!parts) {\n return null;\n }\n return {\n scheme: parts[1] || '',\n netLoc: parts[2] || '',\n path: parts[3] || '',\n params: parts[4] || '',\n query: parts[5] || '',\n fragment: parts[6] || '',\n };\n },\n normalizePath: function (path) {\n // The following operations are\n // then applied, in order, to the new path:\n // 6a) All occurrences of \"./\", where \".\" is a complete path\n // segment, are removed.\n // 6b) If the path ends with \".\" as a complete path segment,\n // that \".\" is removed.\n path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');\n // 6c) All occurrences of \"/../\", where is a\n // complete path segment not equal to \"..\", are removed.\n // Removal of these path segments is performed iteratively,\n // removing the leftmost matching pattern on each iteration,\n // until no matching pattern remains.\n // 6d) If the path ends with \"/..\", where is a\n // complete path segment not equal to \"..\", that\n // \"/..\" is removed.\n while (\n path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length\n ) {}\n return path.split('').reverse().join('');\n },\n buildURLFromParts: function (parts) {\n return (\n parts.scheme +\n parts.netLoc +\n parts.path +\n parts.params +\n parts.query +\n parts.fragment\n );\n },\n };\n\n if (typeof exports === 'object' && typeof module === 'object')\n module.exports = URLToolkit;\n else if (typeof define === 'function' && define.amd)\n define([], function () {\n return URLToolkit;\n });\n else if (typeof exports === 'object') exports['URLToolkit'] = URLToolkit;\n else root['URLToolkit'] = URLToolkit;\n})(this);\n", "\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = void 0;\n\nvar _urlToolkit = _interopRequireDefault(require(\"url-toolkit\"));\n\nvar _window = _interopRequireDefault(require(\"global/window\"));\n\nvar DEFAULT_LOCATION = 'http://example.com';\n\nvar resolveUrl = function resolveUrl(baseUrl, relativeUrl) {\n // return early if we don't need to resolve\n if (/^[a-z]+:/i.test(relativeUrl)) {\n return relativeUrl;\n } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location\n\n\n if (/^data:/.test(baseUrl)) {\n baseUrl = _window.default.location && _window.default.location.href || '';\n } // IE11 supports URL but not the URL constructor\n // feature detect the behavior we want\n\n\n var nativeURL = typeof _window.default.URL === 'function';\n var protocolLess = /^\\/\\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)\n // and if baseUrl isn't an absolute url\n\n var removeLocation = !_window.default.location && !/\\/\\//i.test(baseUrl); // if the base URL is relative then combine with the current location\n\n if (nativeURL) {\n baseUrl = new _window.default.URL(baseUrl, _window.default.location || DEFAULT_LOCATION);\n } else if (!/\\/\\//i.test(baseUrl)) {\n baseUrl = _urlToolkit.default.buildAbsoluteURL(_window.default.location && _window.default.location.href || '', baseUrl);\n }\n\n if (nativeURL) {\n var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol\n // and if we're location-less, remove the location\n // otherwise, return the url unmodified\n\n if (removeLocation) {\n return newUrl.href.slice(DEFAULT_LOCATION.length);\n } else if (protocolLess) {\n return newUrl.href.slice(newUrl.protocol.length);\n }\n\n return newUrl.href;\n }\n\n return _urlToolkit.default.buildAbsoluteURL(baseUrl, relativeUrl);\n};\n\nvar _default = resolveUrl;\nexports.default = _default;\nmodule.exports = exports.default;", "function _setPrototypeOf(t, e) {\n return module.exports = _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) {\n return t.__proto__ = e, t;\n }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports, _setPrototypeOf(t, e);\n}\nmodule.exports = _setPrototypeOf, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "var setPrototypeOf = require(\"./setPrototypeOf.js\");\nfunction _inheritsLoose(t, o) {\n t.prototype = Object.create(o.prototype), t.prototype.constructor = t, setPrototypeOf(t, o);\n}\nmodule.exports = _inheritsLoose, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = void 0;\n\n/**\n * @file stream.js\n */\n\n/**\n * A lightweight readable stream implemention that handles event dispatching.\n *\n * @class Stream\n */\nvar Stream = /*#__PURE__*/function () {\n function Stream() {\n this.listeners = {};\n }\n /**\n * Add a listener for a specified event type.\n *\n * @param {string} type the event name\n * @param {Function} listener the callback to be invoked when an event of\n * the specified type occurs\n */\n\n\n var _proto = Stream.prototype;\n\n _proto.on = function on(type, listener) {\n if (!this.listeners[type]) {\n this.listeners[type] = [];\n }\n\n this.listeners[type].push(listener);\n }\n /**\n * Remove a listener for a specified event type.\n *\n * @param {string} type the event name\n * @param {Function} listener a function previously registered for this\n * type of event through `on`\n * @return {boolean} if we could turn it off or not\n */\n ;\n\n _proto.off = function off(type, listener) {\n if (!this.listeners[type]) {\n return false;\n }\n\n var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n // In Video.js we slice listener functions\n // on trigger so that it does not mess up the order\n // while we loop through.\n //\n // Here we slice on off so that the loop in trigger\n // can continue using it's old reference to loop without\n // messing up the order.\n\n this.listeners[type] = this.listeners[type].slice(0);\n this.listeners[type].splice(index, 1);\n return index > -1;\n }\n /**\n * Trigger an event of the specified type on this stream. Any additional\n * arguments to this function are passed as parameters to event listeners.\n *\n * @param {string} type the event name\n */\n ;\n\n _proto.trigger = function trigger(type) {\n var callbacks = this.listeners[type];\n\n if (!callbacks) {\n return;\n } // Slicing the arguments on every invocation of this method\n // can add a significant amount of overhead. Avoid the\n // intermediate object creation for the common case of a\n // single callback argument\n\n\n if (arguments.length === 2) {\n var length = callbacks.length;\n\n for (var i = 0; i < length; ++i) {\n callbacks[i].call(this, arguments[1]);\n }\n } else {\n var args = Array.prototype.slice.call(arguments, 1);\n var _length = callbacks.length;\n\n for (var _i = 0; _i < _length; ++_i) {\n callbacks[_i].apply(this, args);\n }\n }\n }\n /**\n * Destroys the stream and cleans up.\n */\n ;\n\n _proto.dispose = function dispose() {\n this.listeners = {};\n }\n /**\n * Forwards all `data` events on this stream to the destination stream. The\n * destination stream should provide a method `push` to receive the data\n * events as they arrive.\n *\n * @param {Stream} destination the stream that will receive all `data` events\n * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n */\n ;\n\n _proto.pipe = function pipe(destination) {\n this.on('data', function (data) {\n destination.push(data);\n });\n };\n\n return Stream;\n}();\n\nexports.default = Stream;\nmodule.exports = exports.default;", "function _extends() {\n return module.exports = _extends = Object.assign ? Object.assign.bind() : function (n) {\n for (var e = 1; e < arguments.length; e++) {\n var t = arguments[e];\n for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]);\n }\n return n;\n }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports, _extends.apply(null, arguments);\n}\nmodule.exports = _extends, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "function _assertThisInitialized(e) {\n if (void 0 === e) throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n return e;\n}\nmodule.exports = _assertThisInitialized, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;", "\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = decodeB64ToUint8Array;\n\nvar _window = _interopRequireDefault(require(\"global/window\"));\n\nvar atob = function atob(s) {\n return _window.default.atob ? _window.default.atob(s) : Buffer.from(s, 'base64').toString('binary');\n};\n\nfunction decodeB64ToUint8Array(b64Text) {\n var decodedString = atob(b64Text);\n var array = new Uint8Array(decodedString.length);\n\n for (var i = 0; i < decodedString.length; i++) {\n array[i] = decodedString.charCodeAt(i);\n }\n\n return array;\n}\n\nmodule.exports = exports.default;", "/*! @name m3u8-parser @version 4.8.0 @license Apache-2.0 */\n'use strict';\n\nObject.defineProperty(exports, '__esModule', { value: true });\n\nvar _inheritsLoose = require('@babel/runtime/helpers/inheritsLoose');\nvar Stream = require('@videojs/vhs-utils/cjs/stream.js');\nvar _extends = require('@babel/runtime/helpers/extends');\nvar _assertThisInitialized = require('@babel/runtime/helpers/assertThisInitialized');\nvar decodeB64ToUint8Array = require('@videojs/vhs-utils/cjs/decode-b64-to-uint8-array.js');\n\nfunction _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }\n\nvar _inheritsLoose__default = /*#__PURE__*/_interopDefaultLegacy(_inheritsLoose);\nvar Stream__default = /*#__PURE__*/_interopDefaultLegacy(Stream);\nvar _extends__default = /*#__PURE__*/_interopDefaultLegacy(_extends);\nvar _assertThisInitialized__default = /*#__PURE__*/_interopDefaultLegacy(_assertThisInitialized);\nvar decodeB64ToUint8Array__default = /*#__PURE__*/_interopDefaultLegacy(decodeB64ToUint8Array);\n\n/**\n * A stream that buffers string input and generates a `data` event for each\n * line.\n *\n * @class LineStream\n * @extends Stream\n */\n\nvar LineStream = /*#__PURE__*/function (_Stream) {\n _inheritsLoose__default['default'](LineStream, _Stream);\n\n function LineStream() {\n var _this;\n\n _this = _Stream.call(this) || this;\n _this.buffer = '';\n return _this;\n }\n /**\n * Add new data to be parsed.\n *\n * @param {string} data the text to process\n */\n\n\n var _proto = LineStream.prototype;\n\n _proto.push = function push(data) {\n var nextNewline;\n this.buffer += data;\n nextNewline = this.buffer.indexOf('\\n');\n\n for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\\n')) {\n this.trigger('data', this.buffer.substring(0, nextNewline));\n this.buffer = this.buffer.substring(nextNewline + 1);\n }\n };\n\n return LineStream;\n}(Stream__default['default']);\n\nvar TAB = String.fromCharCode(0x09);\n\nvar parseByterange = function parseByterange(byterangeString) {\n // optionally match and capture 0+ digits before `@`\n // optionally match and capture 0+ digits after `@`\n var match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');\n var result = {};\n\n if (match[1]) {\n result.length = parseInt(match[1], 10);\n }\n\n if (match[2]) {\n result.offset = parseInt(match[2], 10);\n }\n\n return result;\n};\n/**\n * \"forgiving\" attribute list psuedo-grammar:\n * attributes -> keyvalue (',' keyvalue)*\n * keyvalue -> key '=' value\n * key -> [^=]*\n * value -> '\"' [^\"]* '\"' | [^,]*\n */\n\n\nvar attributeSeparator = function attributeSeparator() {\n var key = '[^=]*';\n var value = '\"[^\"]*\"|[^,]*';\n var keyvalue = '(?:' + key + ')=(?:' + value + ')';\n return new RegExp('(?:^|,)(' + keyvalue + ')');\n};\n/**\n * Parse attributes from a line given the separator\n *\n * @param {string} attributes the attribute line to parse\n */\n\n\nvar parseAttributes = function parseAttributes(attributes) {\n // split the string using attributes as the separator\n var attrs = attributes.split(attributeSeparator());\n var result = {};\n var i = attrs.length;\n var attr;\n\n while (i--) {\n // filter out unmatched portions of the string\n if (attrs[i] === '') {\n continue;\n } // split the key and value\n\n\n attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value\n\n attr[0] = attr[0].replace(/^\\s+|\\s+$/g, '');\n attr[1] = attr[1].replace(/^\\s+|\\s+$/g, '');\n attr[1] = attr[1].replace(/^['\"](.*)['\"]$/g, '$1');\n result[attr[0]] = attr[1];\n }\n\n return result;\n};\n/**\n * A line-level M3U8 parser event stream. It expects to receive input one\n * line at a time and performs a context-free parse of its contents. A stream\n * interpretation of a manifest can be useful if the manifest is expected to\n * be too large to fit comfortably into memory or the entirety of the input\n * is not immediately available. Otherwise, it's probably much easier to work\n * with a regular `Parser` object.\n *\n * Produces `data` events with an object that captures the parser's\n * interpretation of the input. That object has a property `tag` that is one\n * of `uri`, `comment`, or `tag`. URIs only have a single additional\n * property, `line`, which captures the entirety of the input without\n * interpretation. Comments similarly have a single additional property\n * `text` which is the input without the leading `#`.\n *\n * Tags always have a property `tagType` which is the lower-cased version of\n * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,\n * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized\n * tags are given the tag type `unknown` and a single additional property\n * `data` with the remainder of the input.\n *\n * @class ParseStream\n * @extends Stream\n */\n\n\nvar ParseStream = /*#__PURE__*/function (_Stream) {\n _inheritsLoose__default['default'](ParseStream, _Stream);\n\n function ParseStream() {\n var _this;\n\n _this = _Stream.call(this) || this;\n _this.customParsers = [];\n _this.tagMappers = [];\n return _this;\n }\n /**\n * Parses an additional line of input.\n *\n * @param {string} line a single line of an M3U8 file to parse\n */\n\n\n var _proto = ParseStream.prototype;\n\n _proto.push = function push(line) {\n var _this2 = this;\n\n var match;\n var event; // strip whitespace\n\n line = line.trim();\n\n if (line.length === 0) {\n // ignore empty lines\n return;\n } // URIs\n\n\n if (line[0] !== '#') {\n this.trigger('data', {\n type: 'uri',\n uri: line\n });\n return;\n } // map tags\n\n\n var newLines = this.tagMappers.reduce(function (acc, mapper) {\n var mappedLine = mapper(line); // skip if unchanged\n\n if (mappedLine === line) {\n return acc;\n }\n\n return acc.concat([mappedLine]);\n }, [line]);\n newLines.forEach(function (newLine) {\n for (var i = 0; i < _this2.customParsers.length; i++) {\n if (_this2.customParsers[i].call(_this2, newLine)) {\n return;\n }\n } // Comments\n\n\n if (newLine.indexOf('#EXT') !== 0) {\n _this2.trigger('data', {\n type: 'comment',\n text: newLine.slice(1)\n });\n\n return;\n } // strip off any carriage returns here so the regex matching\n // doesn't have to account for them.\n\n\n newLine = newLine.replace('\\r', ''); // Tags\n\n match = /^#EXTM3U/.exec(newLine);\n\n if (match) {\n _this2.trigger('data', {\n type: 'tag',\n tagType: 'm3u'\n });\n\n return;\n }\n\n match = /^#EXTINF:?([0-9\\.]*)?,?(.*)?$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'inf'\n };\n\n if (match[1]) {\n event.duration = parseFloat(match[1]);\n }\n\n if (match[2]) {\n event.title = match[2];\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'targetduration'\n };\n\n if (match[1]) {\n event.duration = parseInt(match[1], 10);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'version'\n };\n\n if (match[1]) {\n event.version = parseInt(match[1], 10);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-MEDIA-SEQUENCE:?(\\-?[0-9.]*)?/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'media-sequence'\n };\n\n if (match[1]) {\n event.number = parseInt(match[1], 10);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\\-?[0-9.]*)?/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'discontinuity-sequence'\n };\n\n if (match[1]) {\n event.number = parseInt(match[1], 10);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'playlist-type'\n };\n\n if (match[1]) {\n event.playlistType = match[1];\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-BYTERANGE:?(.*)?$/.exec(newLine);\n\n if (match) {\n event = _extends__default['default'](parseByterange(match[1]), {\n type: 'tag',\n tagType: 'byterange'\n });\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'allow-cache'\n };\n\n if (match[1]) {\n event.allowed = !/NO/.test(match[1]);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-MAP:?(.*)$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'map'\n };\n\n if (match[1]) {\n var attributes = parseAttributes(match[1]);\n\n if (attributes.URI) {\n event.uri = attributes.URI;\n }\n\n if (attributes.BYTERANGE) {\n event.byterange = parseByterange(attributes.BYTERANGE);\n }\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'stream-inf'\n };\n\n if (match[1]) {\n event.attributes = parseAttributes(match[1]);\n\n if (event.attributes.RESOLUTION) {\n var split = event.attributes.RESOLUTION.split('x');\n var resolution = {};\n\n if (split[0]) {\n resolution.width = parseInt(split[0], 10);\n }\n\n if (split[1]) {\n resolution.height = parseInt(split[1], 10);\n }\n\n event.attributes.RESOLUTION = resolution;\n }\n\n if (event.attributes.BANDWIDTH) {\n event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);\n }\n\n if (event.attributes['FRAME-RATE']) {\n event.attributes['FRAME-RATE'] = parseFloat(event.attributes['FRAME-RATE']);\n }\n\n if (event.attributes['PROGRAM-ID']) {\n event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);\n }\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-MEDIA:?(.*)$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'media'\n };\n\n if (match[1]) {\n event.attributes = parseAttributes(match[1]);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-ENDLIST/.exec(newLine);\n\n if (match) {\n _this2.trigger('data', {\n type: 'tag',\n tagType: 'endlist'\n });\n\n return;\n }\n\n match = /^#EXT-X-DISCONTINUITY/.exec(newLine);\n\n if (match) {\n _this2.trigger('data', {\n type: 'tag',\n tagType: 'discontinuity'\n });\n\n return;\n }\n\n match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'program-date-time'\n };\n\n if (match[1]) {\n event.dateTimeString = match[1];\n event.dateTimeObject = new Date(match[1]);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-KEY:?(.*)$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'key'\n };\n\n if (match[1]) {\n event.attributes = parseAttributes(match[1]); // parse the IV string into a Uint32Array\n\n if (event.attributes.IV) {\n if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {\n event.attributes.IV = event.attributes.IV.substring(2);\n }\n\n event.attributes.IV = event.attributes.IV.match(/.{8}/g);\n event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);\n event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);\n event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);\n event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);\n event.attributes.IV = new Uint32Array(event.attributes.IV);\n }\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-START:?(.*)$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'start'\n };\n\n if (match[1]) {\n event.attributes = parseAttributes(match[1]);\n event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);\n event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'cue-out-cont'\n };\n\n if (match[1]) {\n event.data = match[1];\n } else {\n event.data = '';\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'cue-out'\n };\n\n if (match[1]) {\n event.data = match[1];\n } else {\n event.data = '';\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(newLine);\n\n if (match) {\n event = {\n type: 'tag',\n tagType: 'cue-in'\n };\n\n if (match[1]) {\n event.data = match[1];\n } else {\n event.data = '';\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);\n\n if (match && match[1]) {\n event = {\n type: 'tag',\n tagType: 'skip'\n };\n event.attributes = parseAttributes(match[1]);\n\n if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {\n event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);\n }\n\n if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {\n event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-PART:(.*)$/.exec(newLine);\n\n if (match && match[1]) {\n event = {\n type: 'tag',\n tagType: 'part'\n };\n event.attributes = parseAttributes(match[1]);\n ['DURATION'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = parseFloat(event.attributes[key]);\n }\n });\n ['INDEPENDENT', 'GAP'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = /YES/.test(event.attributes[key]);\n }\n });\n\n if (event.attributes.hasOwnProperty('BYTERANGE')) {\n event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);\n }\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);\n\n if (match && match[1]) {\n event = {\n type: 'tag',\n tagType: 'server-control'\n };\n event.attributes = parseAttributes(match[1]);\n ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = parseFloat(event.attributes[key]);\n }\n });\n ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = /YES/.test(event.attributes[key]);\n }\n });\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);\n\n if (match && match[1]) {\n event = {\n type: 'tag',\n tagType: 'part-inf'\n };\n event.attributes = parseAttributes(match[1]);\n ['PART-TARGET'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = parseFloat(event.attributes[key]);\n }\n });\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);\n\n if (match && match[1]) {\n event = {\n type: 'tag',\n tagType: 'preload-hint'\n };\n event.attributes = parseAttributes(match[1]);\n ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = parseInt(event.attributes[key], 10);\n var subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';\n event.attributes.byterange = event.attributes.byterange || {};\n event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.\n\n delete event.attributes[key];\n }\n });\n\n _this2.trigger('data', event);\n\n return;\n }\n\n match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);\n\n if (match && match[1]) {\n event = {\n type: 'tag',\n tagType: 'rendition-report'\n };\n event.attributes = parseAttributes(match[1]);\n ['LAST-MSN', 'LAST-PART'].forEach(function (key) {\n if (event.attributes.hasOwnProperty(key)) {\n event.attributes[key] = parseInt(event.attributes[key], 10);\n }\n });\n\n _this2.trigger('data', event);\n\n return;\n } // unknown tag type\n\n\n _this2.trigger('data', {\n type: 'tag',\n data: newLine.slice(4)\n });\n });\n }\n /**\n * Add a parser for custom headers\n *\n * @param {Object} options a map of options for the added parser\n * @param {RegExp} options.expression a regular expression to match the custom header\n * @param {string} options.customType the custom type to register to the output\n * @param {Function} [options.dataParser] function to parse the line into an object\n * @param {boolean} [options.segment] should tag data be attached to the segment object\n */\n ;\n\n _proto.addParser = function addParser(_ref) {\n var _this3 = this;\n\n var expression = _ref.expression,\n customType = _ref.customType,\n dataParser = _ref.dataParser,\n segment = _ref.segment;\n\n if (typeof dataParser !== 'function') {\n dataParser = function dataParser(line) {\n return line;\n };\n }\n\n this.customParsers.push(function (line) {\n var match = expression.exec(line);\n\n if (match) {\n _this3.trigger('data', {\n type: 'custom',\n data: dataParser(line),\n customType: customType,\n segment: segment\n });\n\n return true;\n }\n });\n }\n /**\n * Add a custom header mapper\n *\n * @param {Object} options\n * @param {RegExp} options.expression a regular expression to match the custom header\n * @param {Function} options.map function to translate tag into a different tag\n */\n ;\n\n _proto.addTagMapper = function addTagMapper(_ref2) {\n var expression = _ref2.expression,\n map = _ref2.map;\n\n var mapFn = function mapFn(line) {\n if (expression.test(line)) {\n return map(line);\n }\n\n return line;\n };\n\n this.tagMappers.push(mapFn);\n };\n\n return ParseStream;\n}(Stream__default['default']);\n\nvar camelCase = function camelCase(str) {\n return str.toLowerCase().replace(/-(\\w)/g, function (a) {\n return a[1].toUpperCase();\n });\n};\n\nvar camelCaseKeys = function camelCaseKeys(attributes) {\n var result = {};\n Object.keys(attributes).forEach(function (key) {\n result[camelCase(key)] = attributes[key];\n });\n return result;\n}; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration\n// we need this helper because defaults are based upon targetDuration and\n// partTargetDuration being set, but they may not be if SERVER-CONTROL appears before\n// target durations are set.\n\n\nvar setHoldBack = function setHoldBack(manifest) {\n var serverControl = manifest.serverControl,\n targetDuration = manifest.targetDuration,\n partTargetDuration = manifest.partTargetDuration;\n\n if (!serverControl) {\n return;\n }\n\n var tag = '#EXT-X-SERVER-CONTROL';\n var hb = 'holdBack';\n var phb = 'partHoldBack';\n var minTargetDuration = targetDuration && targetDuration * 3;\n var minPartDuration = partTargetDuration && partTargetDuration * 2;\n\n if (targetDuration && !serverControl.hasOwnProperty(hb)) {\n serverControl[hb] = minTargetDuration;\n this.trigger('info', {\n message: tag + \" defaulting HOLD-BACK to targetDuration * 3 (\" + minTargetDuration + \").\"\n });\n }\n\n if (minTargetDuration && serverControl[hb] < minTargetDuration) {\n this.trigger('warn', {\n message: tag + \" clamping HOLD-BACK (\" + serverControl[hb] + \") to targetDuration * 3 (\" + minTargetDuration + \")\"\n });\n serverControl[hb] = minTargetDuration;\n } // default no part hold back to part target duration * 3\n\n\n if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {\n serverControl[phb] = partTargetDuration * 3;\n this.trigger('info', {\n message: tag + \" defaulting PART-HOLD-BACK to partTargetDuration * 3 (\" + serverControl[phb] + \").\"\n });\n } // if part hold back is too small default it to part target duration * 2\n\n\n if (partTargetDuration && serverControl[phb] < minPartDuration) {\n this.trigger('warn', {\n message: tag + \" clamping PART-HOLD-BACK (\" + serverControl[phb] + \") to partTargetDuration * 2 (\" + minPartDuration + \").\"\n });\n serverControl[phb] = minPartDuration;\n }\n};\n/**\n * A parser for M3U8 files. The current interpretation of the input is\n * exposed as a property `manifest` on parser objects. It's just two lines to\n * create and parse a manifest once you have the contents available as a string:\n *\n * ```js\n * var parser = new m3u8.Parser();\n * parser.push(xhr.responseText);\n * ```\n *\n * New input can later be applied to update the manifest object by calling\n * `push` again.\n *\n * The parser attempts to create a usable manifest object even if the\n * underlying input is somewhat nonsensical. It emits `info` and `warning`\n * events during the parse if it encounters input that seems invalid or\n * requires some property of the manifest object to be defaulted.\n *\n * @class Parser\n * @extends Stream\n */\n\n\nvar Parser = /*#__PURE__*/function (_Stream) {\n _inheritsLoose__default['default'](Parser, _Stream);\n\n function Parser() {\n var _this;\n\n _this = _Stream.call(this) || this;\n _this.lineStream = new LineStream();\n _this.parseStream = new ParseStream();\n\n _this.lineStream.pipe(_this.parseStream);\n /* eslint-disable consistent-this */\n\n\n var self = _assertThisInitialized__default['default'](_this);\n /* eslint-enable consistent-this */\n\n\n var uris = [];\n var currentUri = {}; // if specified, the active EXT-X-MAP definition\n\n var currentMap; // if specified, the active decryption key\n\n var _key;\n\n var hasParts = false;\n\n var noop = function noop() {};\n\n var defaultMediaGroups = {\n 'AUDIO': {},\n 'VIDEO': {},\n 'CLOSED-CAPTIONS': {},\n 'SUBTITLES': {}\n }; // This is the Widevine UUID from DASH IF IOP. The same exact string is\n // used in MPDs with Widevine encrypted streams.\n\n var widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities\n\n var currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data\n\n _this.manifest = {\n allowCache: true,\n discontinuityStarts: [],\n segments: []\n }; // keep track of the last seen segment's byte range end, as segments are not required\n // to provide the offset, in which case it defaults to the next byte after the\n // previous segment\n\n var lastByterangeEnd = 0; // keep track of the last seen part's byte range end.\n\n var lastPartByterangeEnd = 0;\n\n _this.on('end', function () {\n // only add preloadSegment if we don't yet have a uri for it.\n // and we actually have parts/preloadHints\n if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {\n return;\n }\n\n if (!currentUri.map && currentMap) {\n currentUri.map = currentMap;\n }\n\n if (!currentUri.key && _key) {\n currentUri.key = _key;\n }\n\n if (!currentUri.timeline && typeof currentTimeline === 'number') {\n currentUri.timeline = currentTimeline;\n }\n\n _this.manifest.preloadSegment = currentUri;\n }); // update the manifest with the m3u8 entry from the parse stream\n\n\n _this.parseStream.on('data', function (entry) {\n var mediaGroup;\n var rendition;\n ({\n tag: function tag() {\n // switch based on the tag type\n (({\n version: function version() {\n if (entry.version) {\n this.manifest.version = entry.version;\n }\n },\n 'allow-cache': function allowCache() {\n this.manifest.allowCache = entry.allowed;\n\n if (!('allowed' in entry)) {\n this.trigger('info', {\n message: 'defaulting allowCache to YES'\n });\n this.manifest.allowCache = true;\n }\n },\n byterange: function byterange() {\n var byterange = {};\n\n if ('length' in entry) {\n currentUri.byterange = byterange;\n byterange.length = entry.length;\n\n if (!('offset' in entry)) {\n /*\n * From the latest spec (as of this writing):\n * https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.2\n *\n * Same text since EXT-X-BYTERANGE's introduction in draft 7:\n * https://tools.ietf.org/html/draft-pantos-http-live-streaming-07#section-3.3.1)\n *\n * \"If o [offset] is not present, the sub-range begins at the next byte\n * following the sub-range of the previous media segment.\"\n */\n entry.offset = lastByterangeEnd;\n }\n }\n\n if ('offset' in entry) {\n currentUri.byterange = byterange;\n byterange.offset = entry.offset;\n }\n\n lastByterangeEnd = byterange.offset + byterange.length;\n },\n endlist: function endlist() {\n this.manifest.endList = true;\n },\n inf: function inf() {\n if (!('mediaSequence' in this.manifest)) {\n this.manifest.mediaSequence = 0;\n this.trigger('info', {\n message: 'defaulting media sequence to zero'\n });\n }\n\n if (!('discontinuitySequence' in this.manifest)) {\n this.manifest.discontinuitySequence = 0;\n this.trigger('info', {\n message: 'defaulting discontinuity sequence to zero'\n });\n }\n\n if (entry.duration > 0) {\n currentUri.duration = entry.duration;\n }\n\n if (entry.duration === 0) {\n currentUri.duration = 0.01;\n this.trigger('info', {\n message: 'updating zero segment duration to a small value'\n });\n }\n\n this.manifest.segments = uris;\n },\n key: function key() {\n if (!entry.attributes) {\n this.trigger('warn', {\n message: 'ignoring key declaration without attribute list'\n });\n return;\n } // clear the active encryption key\n\n\n if (entry.attributes.METHOD === 'NONE') {\n _key = null;\n return;\n }\n\n if (!entry.attributes.URI) {\n this.trigger('warn', {\n message: 'ignoring key declaration without URI'\n });\n return;\n }\n\n if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {\n this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n this.manifest.contentProtection['com.apple.fps.1_0'] = {\n attributes: entry.attributes\n };\n return;\n }\n\n if (entry.attributes.KEYFORMAT === 'com.microsoft.playready') {\n this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n this.manifest.contentProtection['com.microsoft.playready'] = {\n uri: entry.attributes.URI\n };\n return;\n } // check if the content is encrypted for Widevine\n // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf\n\n\n if (entry.attributes.KEYFORMAT === widevineUuid) {\n var VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];\n\n if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {\n this.trigger('warn', {\n message: 'invalid key method provided for Widevine'\n });\n return;\n }\n\n if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {\n this.trigger('warn', {\n message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'\n });\n }\n\n if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {\n this.trigger('warn', {\n message: 'invalid key URI provided for Widevine'\n });\n return;\n }\n\n if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {\n this.trigger('warn', {\n message: 'invalid key ID provided for Widevine'\n });\n return;\n } // if Widevine key attributes are valid, store them as `contentProtection`\n // on the manifest to emulate Widevine tag structure in a DASH mpd\n\n\n this.manifest.contentProtection = this.manifest.contentProtection || {};\n this.manifest.contentProtection['com.widevine.alpha'] = {\n attributes: {\n schemeIdUri: entry.attributes.KEYFORMAT,\n // remove '0x' from the key id string\n keyId: entry.attributes.KEYID.substring(2)\n },\n // decode the base64-encoded PSSH box\n pssh: decodeB64ToUint8Array__default['default'](entry.attributes.URI.split(',')[1])\n };\n return;\n }\n\n if (!entry.attributes.METHOD) {\n this.trigger('warn', {\n message: 'defaulting key method to AES-128'\n });\n } // setup an encryption key for upcoming segments\n\n\n _key = {\n method: entry.attributes.METHOD || 'AES-128',\n uri: entry.attributes.URI\n };\n\n if (typeof entry.attributes.IV !== 'undefined') {\n _key.iv = entry.attributes.IV;\n }\n },\n 'media-sequence': function mediaSequence() {\n if (!isFinite(entry.number)) {\n this.trigger('warn', {\n message: 'ignoring invalid media sequence: ' + entry.number\n });\n return;\n }\n\n this.manifest.mediaSequence = entry.number;\n },\n 'discontinuity-sequence': function discontinuitySequence() {\n if (!isFinite(entry.number)) {\n this.trigger('warn', {\n message: 'ignoring invalid discontinuity sequence: ' + entry.number\n });\n return;\n }\n\n this.manifest.discontinuitySequence = entry.number;\n currentTimeline = entry.number;\n },\n 'playlist-type': function playlistType() {\n if (!/VOD|EVENT/.test(entry.playlistType)) {\n this.trigger('warn', {\n message: 'ignoring unknown playlist type: ' + entry.playlist\n });\n return;\n }\n\n this.manifest.playlistType = entry.playlistType;\n },\n map: function map() {\n currentMap = {};\n\n if (entry.uri) {\n currentMap.uri = entry.uri;\n }\n\n if (entry.byterange) {\n currentMap.byterange = entry.byterange;\n }\n\n if (_key) {\n currentMap.key = _key;\n }\n },\n 'stream-inf': function streamInf() {\n this.manifest.playlists = uris;\n this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n\n if (!entry.attributes) {\n this.trigger('warn', {\n message: 'ignoring empty stream-inf attributes'\n });\n return;\n }\n\n if (!currentUri.attributes) {\n currentUri.attributes = {};\n }\n\n _extends__default['default'](currentUri.attributes, entry.attributes);\n },\n media: function media() {\n this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n\n if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {\n this.trigger('warn', {\n message: 'ignoring incomplete or missing media group'\n });\n return;\n } // find the media group, creating defaults as necessary\n\n\n var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];\n mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};\n mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata\n\n rendition = {\n default: /yes/i.test(entry.attributes.DEFAULT)\n };\n\n if (rendition.default) {\n rendition.autoselect = true;\n } else {\n rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);\n }\n\n if (entry.attributes.LANGUAGE) {\n rendition.language = entry.attributes.LANGUAGE;\n }\n\n if (entry.attributes.URI) {\n rendition.uri = entry.attributes.URI;\n }\n\n if (entry.attributes['INSTREAM-ID']) {\n rendition.instreamId = entry.attributes['INSTREAM-ID'];\n }\n\n if (entry.attributes.CHARACTERISTICS) {\n rendition.characteristics = entry.attributes.CHARACTERISTICS;\n }\n\n if (entry.attributes.FORCED) {\n rendition.forced = /yes/i.test(entry.attributes.FORCED);\n } // insert the new rendition\n\n\n mediaGroup[entry.attributes.NAME] = rendition;\n },\n discontinuity: function discontinuity() {\n currentTimeline += 1;\n currentUri.discontinuity = true;\n this.manifest.discontinuityStarts.push(uris.length);\n },\n 'program-date-time': function programDateTime() {\n if (typeof this.manifest.dateTimeString === 'undefined') {\n // PROGRAM-DATE-TIME is a media-segment tag, but for backwards\n // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag\n // to the manifest object\n // TODO: Consider removing this in future major version\n this.manifest.dateTimeString = entry.dateTimeString;\n this.manifest.dateTimeObject = entry.dateTimeObject;\n }\n\n currentUri.dateTimeString = entry.dateTimeString;\n currentUri.dateTimeObject = entry.dateTimeObject;\n },\n targetduration: function targetduration() {\n if (!isFinite(entry.duration) || entry.duration < 0) {\n this.trigger('warn', {\n message: 'ignoring invalid target duration: ' + entry.duration\n });\n return;\n }\n\n this.manifest.targetDuration = entry.duration;\n setHoldBack.call(this, this.manifest);\n },\n start: function start() {\n if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {\n this.trigger('warn', {\n message: 'ignoring start declaration without appropriate attribute list'\n });\n return;\n }\n\n this.manifest.start = {\n timeOffset: entry.attributes['TIME-OFFSET'],\n precise: entry.attributes.PRECISE\n };\n },\n 'cue-out': function cueOut() {\n currentUri.cueOut = entry.data;\n },\n 'cue-out-cont': function cueOutCont() {\n currentUri.cueOutCont = entry.data;\n },\n 'cue-in': function cueIn() {\n currentUri.cueIn = entry.data;\n },\n 'skip': function skip() {\n this.manifest.skip = camelCaseKeys(entry.attributes);\n this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);\n },\n 'part': function part() {\n var _this2 = this;\n\n hasParts = true; // parts are always specifed before a segment\n\n var segmentIndex = this.manifest.segments.length;\n var part = camelCaseKeys(entry.attributes);\n currentUri.parts = currentUri.parts || [];\n currentUri.parts.push(part);\n\n if (part.byterange) {\n if (!part.byterange.hasOwnProperty('offset')) {\n part.byterange.offset = lastPartByterangeEnd;\n }\n\n lastPartByterangeEnd = part.byterange.offset + part.byterange.length;\n }\n\n var partIndex = currentUri.parts.length - 1;\n this.warnOnMissingAttributes_(\"#EXT-X-PART #\" + partIndex + \" for segment #\" + segmentIndex, entry.attributes, ['URI', 'DURATION']);\n\n if (this.manifest.renditionReports) {\n this.manifest.renditionReports.forEach(function (r, i) {\n if (!r.hasOwnProperty('lastPart')) {\n _this2.trigger('warn', {\n message: \"#EXT-X-RENDITION-REPORT #\" + i + \" lacks required attribute(s): LAST-PART\"\n });\n }\n });\n }\n },\n 'server-control': function serverControl() {\n var attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);\n\n if (!attrs.hasOwnProperty('canBlockReload')) {\n attrs.canBlockReload = false;\n this.trigger('info', {\n message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'\n });\n }\n\n setHoldBack.call(this, this.manifest);\n\n if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {\n this.trigger('warn', {\n message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'\n });\n }\n },\n 'preload-hint': function preloadHint() {\n // parts are always specifed before a segment\n var segmentIndex = this.manifest.segments.length;\n var hint = camelCaseKeys(entry.attributes);\n var isPart = hint.type && hint.type === 'PART';\n currentUri.preloadHints = currentUri.preloadHints || [];\n currentUri.preloadHints.push(hint);\n\n if (hint.byterange) {\n if (!hint.byterange.hasOwnProperty('offset')) {\n // use last part byterange end or zero if not a part.\n hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;\n\n if (isPart) {\n lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;\n }\n }\n }\n\n var index = currentUri.preloadHints.length - 1;\n this.warnOnMissingAttributes_(\"#EXT-X-PRELOAD-HINT #\" + index + \" for segment #\" + segmentIndex, entry.attributes, ['TYPE', 'URI']);\n\n if (!hint.type) {\n return;\n } // search through all preload hints except for the current one for\n // a duplicate type.\n\n\n for (var i = 0; i < currentUri.preloadHints.length - 1; i++) {\n var otherHint = currentUri.preloadHints[i];\n\n if (!otherHint.type) {\n continue;\n }\n\n if (otherHint.type === hint.type) {\n this.trigger('warn', {\n message: \"#EXT-X-PRELOAD-HINT #\" + index + \" for segment #\" + segmentIndex + \" has the same TYPE \" + hint.type + \" as preload hint #\" + i\n });\n }\n }\n },\n 'rendition-report': function renditionReport() {\n var report = camelCaseKeys(entry.attributes);\n this.manifest.renditionReports = this.manifest.renditionReports || [];\n this.manifest.renditionReports.push(report);\n var index = this.manifest.renditionReports.length - 1;\n var required = ['LAST-MSN', 'URI'];\n\n if (hasParts) {\n required.push('LAST-PART');\n }\n\n this.warnOnMissingAttributes_(\"#EXT-X-RENDITION-REPORT #\" + index, entry.attributes, required);\n },\n 'part-inf': function partInf() {\n this.manifest.partInf = camelCaseKeys(entry.attributes);\n this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);\n\n if (this.manifest.partInf.partTarget) {\n this.manifest.partTargetDuration = this.manifest.partInf.partTarget;\n }\n\n setHoldBack.call(this, this.manifest);\n }\n })[entry.tagType] || noop).call(self);\n },\n uri: function uri() {\n currentUri.uri = entry.uri;\n uris.push(currentUri); // if no explicit duration was declared, use the target duration\n\n if (this.manifest.targetDuration && !('duration' in currentUri)) {\n this.trigger('warn', {\n message: 'defaulting segment duration to the target duration'\n });\n currentUri.duration = this.manifest.targetDuration;\n } // annotate with encryption information, if necessary\n\n\n if (_key) {\n currentUri.key = _key;\n }\n\n currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary\n\n if (currentMap) {\n currentUri.map = currentMap;\n } // reset the last byterange end as it needs to be 0 between parts\n\n\n lastPartByterangeEnd = 0; // prepare for the next URI\n\n currentUri = {};\n },\n comment: function comment() {// comments are not important for playback\n },\n custom: function custom() {\n // if this is segment-level data attach the output to the segment\n if (entry.segment) {\n currentUri.custom = currentUri.custom || {};\n currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object\n } else {\n this.manifest.custom = this.manifest.custom || {};\n this.manifest.custom[entry.customType] = entry.data;\n }\n }\n })[entry.type].call(self);\n });\n\n return _this;\n }\n\n var _proto = Parser.prototype;\n\n _proto.warnOnMissingAttributes_ = function warnOnMissingAttributes_(identifier, attributes, required) {\n var missing = [];\n required.forEach(function (key) {\n if (!attributes.hasOwnProperty(key)) {\n missing.push(key);\n }\n });\n\n if (missing.length) {\n this.trigger('warn', {\n message: identifier + \" lacks required attribute(s): \" + missing.join(', ')\n });\n }\n }\n /**\n * Parse the input string and update the manifest object.\n *\n * @param {string} chunk a potentially incomplete portion of the manifest\n */\n ;\n\n _proto.push = function push(chunk) {\n this.lineStream.push(chunk);\n }\n /**\n * Flush any remaining input. This can be handy if the last line of an M3U8\n * manifest did not contain a trailing newline but the file has been\n * completely received.\n */\n ;\n\n _proto.end = function end() {\n // flush any buffered input\n this.lineStream.push('\\n');\n this.trigger('end');\n }\n /**\n * Add an additional parser for non-standard tags\n *\n * @param {Object} options a map of options for the added parser\n * @param {RegExp} options.expression a regular expression to match the custom header\n * @param {string} options.type the type to register to the output\n * @param {Function} [options.dataParser] function to parse the line into an object\n * @param {boolean} [options.segment] should tag data be attached to the segment object\n */\n ;\n\n _proto.addParser = function addParser(options) {\n this.parseStream.addParser(options);\n }\n /**\n * Add a custom header mapper\n *\n * @param {Object} options\n * @param {RegExp} options.expression a regular expression to match the custom header\n * @param {Function} options.map function to translate tag into a different tag\n */\n ;\n\n _proto.addTagMapper = function addTagMapper(options) {\n this.parseStream.addTagMapper(options);\n };\n\n return Parser;\n}(Stream__default['default']);\n\nexports.LineStream = LineStream;\nexports.ParseStream = ParseStream;\nexports.Parser = Parser;\n", "\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.DEFAULT_VIDEO_CODEC = exports.DEFAULT_AUDIO_CODEC = exports.muxerSupportsCodec = exports.browserSupportsCodec = exports.getMimeForCodec = exports.isTextCodec = exports.isAudioCodec = exports.isVideoCodec = exports.codecsFromDefault = exports.parseCodecs = exports.mapLegacyAvcCodecs = exports.translateLegacyCodecs = exports.translateLegacyCodec = void 0;\n\nvar _window = _interopRequireDefault(require(\"global/window\"));\n\nvar regexs = {\n // to determine mime types\n mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,\n webm: /^(vp0?[89]|av0?1|opus|vorbis)/,\n ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,\n // to determine if a codec is audio or video\n video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,\n audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,\n text: /^(stpp.ttml.im1t)/,\n // mux.js support regex\n muxerVideo: /^(avc0?1)/,\n muxerAudio: /^(mp4a)/,\n // match nothing as muxer does not support text right now.\n // there cannot never be a character before the start of a string\n // so this matches nothing.\n muxerText: /a^/\n};\nvar mediaTypes = ['video', 'audio', 'text'];\nvar upperMediaTypes = ['Video', 'Audio', 'Text'];\n/**\n * Replace the old apple-style `avc1.
    .
    ` codec string with the standard\n * `avc1.`\n *\n * @param {string} codec\n * Codec string to translate\n * @return {string}\n * The translated codec string\n */\n\nvar translateLegacyCodec = function translateLegacyCodec(codec) {\n if (!codec) {\n return codec;\n }\n\n return codec.replace(/avc1\\.(\\d+)\\.(\\d+)/i, function (orig, profile, avcLevel) {\n var profileHex = ('00' + Number(profile).toString(16)).slice(-2);\n var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);\n return 'avc1.' + profileHex + '00' + avcLevelHex;\n });\n};\n/**\n * Replace the old apple-style `avc1.
    .
    ` codec strings with the standard\n * `avc1.`\n *\n * @param {string[]} codecs\n * An array of codec strings to translate\n * @return {string[]}\n * The translated array of codec strings\n */\n\n\nexports.translateLegacyCodec = translateLegacyCodec;\n\nvar translateLegacyCodecs = function translateLegacyCodecs(codecs) {\n return codecs.map(translateLegacyCodec);\n};\n/**\n * Replace codecs in the codec string with the old apple-style `avc1.
    .
    ` to the\n * standard `avc1.`.\n *\n * @param {string} codecString\n * The codec string\n * @return {string}\n * The codec string with old apple-style codecs replaced\n *\n * @private\n */\n\n\nexports.translateLegacyCodecs = translateLegacyCodecs;\n\nvar mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {\n return codecString.replace(/avc1\\.(\\d+)\\.(\\d+)/i, function (match) {\n return translateLegacyCodecs([match])[0];\n });\n};\n/**\n * @typedef {Object} ParsedCodecInfo\n * @property {number} codecCount\n * Number of codecs parsed\n * @property {string} [videoCodec]\n * Parsed video codec (if found)\n * @property {string} [videoObjectTypeIndicator]\n * Video object type indicator (if found)\n * @property {string|null} audioProfile\n * Audio profile\n */\n\n/**\n * Parses a codec string to retrieve the number of codecs specified, the video codec and\n * object type indicator, and the audio profile.\n *\n * @param {string} [codecString]\n * The codec string to parse\n * @return {ParsedCodecInfo}\n * Parsed codec info\n */\n\n\nexports.mapLegacyAvcCodecs = mapLegacyAvcCodecs;\n\nvar parseCodecs = function parseCodecs(codecString) {\n if (codecString === void 0) {\n codecString = '';\n }\n\n var codecs = codecString.split(',');\n var result = [];\n codecs.forEach(function (codec) {\n codec = codec.trim();\n var codecType;\n mediaTypes.forEach(function (name) {\n var match = regexs[name].exec(codec.toLowerCase());\n\n if (!match || match.length <= 1) {\n return;\n }\n\n codecType = name; // maintain codec case\n\n var type = codec.substring(0, match[1].length);\n var details = codec.replace(type, '');\n result.push({\n type: type,\n details: details,\n mediaType: name\n });\n });\n\n if (!codecType) {\n result.push({\n type: codec,\n details: '',\n mediaType: 'unknown'\n });\n }\n });\n return result;\n};\n/**\n * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is\n * a default alternate audio playlist for the provided audio group.\n *\n * @param {Object} master\n * The master playlist\n * @param {string} audioGroupId\n * ID of the audio group for which to find the default codec info\n * @return {ParsedCodecInfo}\n * Parsed codec info\n */\n\n\nexports.parseCodecs = parseCodecs;\n\nvar codecsFromDefault = function codecsFromDefault(master, audioGroupId) {\n if (!master.mediaGroups.AUDIO || !audioGroupId) {\n return null;\n }\n\n var audioGroup = master.mediaGroups.AUDIO[audioGroupId];\n\n if (!audioGroup) {\n return null;\n }\n\n for (var name in audioGroup) {\n var audioType = audioGroup[name];\n\n if (audioType.default && audioType.playlists) {\n // codec should be the same for all playlists within the audio type\n return parseCodecs(audioType.playlists[0].attributes.CODECS);\n }\n }\n\n return null;\n};\n\nexports.codecsFromDefault = codecsFromDefault;\n\nvar isVideoCodec = function isVideoCodec(codec) {\n if (codec === void 0) {\n codec = '';\n }\n\n return regexs.video.test(codec.trim().toLowerCase());\n};\n\nexports.isVideoCodec = isVideoCodec;\n\nvar isAudioCodec = function isAudioCodec(codec) {\n if (codec === void 0) {\n codec = '';\n }\n\n return regexs.audio.test(codec.trim().toLowerCase());\n};\n\nexports.isAudioCodec = isAudioCodec;\n\nvar isTextCodec = function isTextCodec(codec) {\n if (codec === void 0) {\n codec = '';\n }\n\n return regexs.text.test(codec.trim().toLowerCase());\n};\n\nexports.isTextCodec = isTextCodec;\n\nvar getMimeForCodec = function getMimeForCodec(codecString) {\n if (!codecString || typeof codecString !== 'string') {\n return;\n }\n\n var codecs = codecString.toLowerCase().split(',').map(function (c) {\n return translateLegacyCodec(c.trim());\n }); // default to video type\n\n var type = 'video'; // only change to audio type if the only codec we have is\n // audio\n\n if (codecs.length === 1 && isAudioCodec(codecs[0])) {\n type = 'audio';\n } else if (codecs.length === 1 && isTextCodec(codecs[0])) {\n // text uses application/ for now\n type = 'application';\n } // default the container to mp4\n\n\n var container = 'mp4'; // every codec must be able to go into the container\n // for that container to be the correct one\n\n if (codecs.every(function (c) {\n return regexs.mp4.test(c);\n })) {\n container = 'mp4';\n } else if (codecs.every(function (c) {\n return regexs.webm.test(c);\n })) {\n container = 'webm';\n } else if (codecs.every(function (c) {\n return regexs.ogg.test(c);\n })) {\n container = 'ogg';\n }\n\n return type + \"/\" + container + \";codecs=\\\"\" + codecString + \"\\\"\";\n};\n\nexports.getMimeForCodec = getMimeForCodec;\n\nvar browserSupportsCodec = function browserSupportsCodec(codecString) {\n if (codecString === void 0) {\n codecString = '';\n }\n\n return _window.default.MediaSource && _window.default.MediaSource.isTypeSupported && _window.default.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;\n};\n\nexports.browserSupportsCodec = browserSupportsCodec;\n\nvar muxerSupportsCodec = function muxerSupportsCodec(codecString) {\n if (codecString === void 0) {\n codecString = '';\n }\n\n return codecString.toLowerCase().split(',').every(function (codec) {\n codec = codec.trim(); // any match is supported.\n\n for (var i = 0; i < upperMediaTypes.length; i++) {\n var type = upperMediaTypes[i];\n\n if (regexs[\"muxer\" + type].test(codec)) {\n return true;\n }\n }\n\n return false;\n });\n};\n\nexports.muxerSupportsCodec = muxerSupportsCodec;\nvar DEFAULT_AUDIO_CODEC = 'mp4a.40.2';\nexports.DEFAULT_AUDIO_CODEC = DEFAULT_AUDIO_CODEC;\nvar DEFAULT_VIDEO_CODEC = 'avc1.4d400d';\nexports.DEFAULT_VIDEO_CODEC = DEFAULT_VIDEO_CODEC;", "\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.simpleTypeFromSourceType = void 0;\nvar MPEGURL_REGEX = /^(audio|video|application)\\/(x-|vnd\\.apple\\.)?mpegurl/i;\nvar DASH_REGEX = /^application\\/dash\\+xml/i;\n/**\n * Returns a string that describes the type of source based on a video source object's\n * media type.\n *\n * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}\n *\n * @param {string} type\n * Video source object media type\n * @return {('hls'|'dash'|'vhs-json'|null)}\n * VHS source type string\n */\n\nvar simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {\n if (MPEGURL_REGEX.test(type)) {\n return 'hls';\n }\n\n if (DASH_REGEX.test(type)) {\n return 'dash';\n } // Denotes the special case of a manifest object passed to http-streaming instead of a\n // source URL.\n //\n // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.\n //\n // In this case, vnd stands for vendor, video.js for the organization, VHS for this\n // project, and the +json suffix identifies the structure of the media type.\n\n\n if (type === 'application/vnd.videojs.vhs+json') {\n return 'vhs-json';\n }\n\n return null;\n};\n\nexports.simpleTypeFromSourceType = simpleTypeFromSourceType;", "\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.reverseBytes = exports.sliceBytes = exports.bytesMatch = exports.concatTypedArrays = exports.stringToBytes = exports.bytesToString = exports.numberToBytes = exports.bytesToNumber = exports.IS_LITTLE_ENDIAN = exports.IS_BIG_ENDIAN = exports.ENDIANNESS = exports.toBinaryString = exports.toHexString = exports.toUint8 = exports.isTypedArray = exports.isArrayBufferView = exports.padStart = exports.countBytes = exports.countBits = void 0;\n\nvar _window = _interopRequireDefault(require(\"global/window\"));\n\n// const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));\nvar repeat = function repeat(str, len) {\n var acc = '';\n\n while (len--) {\n acc += str;\n }\n\n return acc;\n}; // count the number of bits it would take to represent a number\n// we used to do this with log2 but BigInt does not support builtin math\n// Math.ceil(log2(x));\n\n\nvar countBits = function countBits(x) {\n return x.toString(2).length;\n}; // count the number of whole bytes it would take to represent a number\n\n\nexports.countBits = countBits;\n\nvar countBytes = function countBytes(x) {\n return Math.ceil(countBits(x) / 8);\n};\n\nexports.countBytes = countBytes;\n\nvar padStart = function padStart(b, len, str) {\n if (str === void 0) {\n str = ' ';\n }\n\n return (repeat(str, len) + b.toString()).slice(-len);\n};\n\nexports.padStart = padStart;\n\nvar isArrayBufferView = function isArrayBufferView(obj) {\n if (ArrayBuffer.isView === 'function') {\n return ArrayBuffer.isView(obj);\n }\n\n return obj && obj.buffer instanceof ArrayBuffer;\n};\n\nexports.isArrayBufferView = isArrayBufferView;\n\nvar isTypedArray = function isTypedArray(obj) {\n return isArrayBufferView(obj);\n};\n\nexports.isTypedArray = isTypedArray;\n\nvar toUint8 = function toUint8(bytes) {\n if (bytes instanceof Uint8Array) {\n return bytes;\n }\n\n if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {\n // any non-number or NaN leads to empty uint8array\n // eslint-disable-next-line\n if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {\n bytes = 0;\n } else {\n bytes = [bytes];\n }\n }\n\n return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);\n};\n\nexports.toUint8 = toUint8;\n\nvar toHexString = function toHexString(bytes) {\n bytes = toUint8(bytes);\n var str = '';\n\n for (var i = 0; i < bytes.length; i++) {\n str += padStart(bytes[i].toString(16), 2, '0');\n }\n\n return str;\n};\n\nexports.toHexString = toHexString;\n\nvar toBinaryString = function toBinaryString(bytes) {\n bytes = toUint8(bytes);\n var str = '';\n\n for (var i = 0; i < bytes.length; i++) {\n str += padStart(bytes[i].toString(2), 8, '0');\n }\n\n return str;\n};\n\nexports.toBinaryString = toBinaryString;\nvar BigInt = _window.default.BigInt || Number;\nvar BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];\n\nvar ENDIANNESS = function () {\n var a = new Uint16Array([0xFFCC]);\n var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);\n\n if (b[0] === 0xFF) {\n return 'big';\n }\n\n if (b[0] === 0xCC) {\n return 'little';\n }\n\n return 'unknown';\n}();\n\nexports.ENDIANNESS = ENDIANNESS;\nvar IS_BIG_ENDIAN = ENDIANNESS === 'big';\nexports.IS_BIG_ENDIAN = IS_BIG_ENDIAN;\nvar IS_LITTLE_ENDIAN = ENDIANNESS === 'little';\nexports.IS_LITTLE_ENDIAN = IS_LITTLE_ENDIAN;\n\nvar bytesToNumber = function bytesToNumber(bytes, _temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n _ref$signed = _ref.signed,\n signed = _ref$signed === void 0 ? false : _ref$signed,\n _ref$le = _ref.le,\n le = _ref$le === void 0 ? false : _ref$le;\n\n bytes = toUint8(bytes);\n var fn = le ? 'reduce' : 'reduceRight';\n var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];\n var number = obj.call(bytes, function (total, byte, i) {\n var exponent = le ? i : Math.abs(i + 1 - bytes.length);\n return total + BigInt(byte) * BYTE_TABLE[exponent];\n }, BigInt(0));\n\n if (signed) {\n var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);\n number = BigInt(number);\n\n if (number > max) {\n number -= max;\n number -= max;\n number -= BigInt(2);\n }\n }\n\n return Number(number);\n};\n\nexports.bytesToNumber = bytesToNumber;\n\nvar numberToBytes = function numberToBytes(number, _temp2) {\n var _ref2 = _temp2 === void 0 ? {} : _temp2,\n _ref2$le = _ref2.le,\n le = _ref2$le === void 0 ? false : _ref2$le;\n\n // eslint-disable-next-line\n if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {\n number = 0;\n }\n\n number = BigInt(number);\n var byteCount = countBytes(number);\n var bytes = new Uint8Array(new ArrayBuffer(byteCount));\n\n for (var i = 0; i < byteCount; i++) {\n var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);\n bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));\n\n if (number < 0) {\n bytes[byteIndex] = Math.abs(~bytes[byteIndex]);\n bytes[byteIndex] -= i === 0 ? 1 : 2;\n }\n }\n\n return bytes;\n};\n\nexports.numberToBytes = numberToBytes;\n\nvar bytesToString = function bytesToString(bytes) {\n if (!bytes) {\n return '';\n } // TODO: should toUint8 handle cases where we only have 8 bytes\n // but report more since this is a Uint16+ Array?\n\n\n bytes = Array.prototype.slice.call(bytes);\n var string = String.fromCharCode.apply(null, toUint8(bytes));\n\n try {\n return decodeURIComponent(escape(string));\n } catch (e) {// if decodeURIComponent/escape fails, we are dealing with partial\n // or full non string data. Just return the potentially garbled string.\n }\n\n return string;\n};\n\nexports.bytesToString = bytesToString;\n\nvar stringToBytes = function stringToBytes(string, stringIsBytes) {\n if (typeof string !== 'string' && string && typeof string.toString === 'function') {\n string = string.toString();\n }\n\n if (typeof string !== 'string') {\n return new Uint8Array();\n } // If the string already is bytes, we don't have to do this\n // otherwise we do this so that we split multi length characters\n // into individual bytes\n\n\n if (!stringIsBytes) {\n string = unescape(encodeURIComponent(string));\n }\n\n var view = new Uint8Array(string.length);\n\n for (var i = 0; i < string.length; i++) {\n view[i] = string.charCodeAt(i);\n }\n\n return view;\n};\n\nexports.stringToBytes = stringToBytes;\n\nvar concatTypedArrays = function concatTypedArrays() {\n for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {\n buffers[_key] = arguments[_key];\n }\n\n buffers = buffers.filter(function (b) {\n return b && (b.byteLength || b.length) && typeof b !== 'string';\n });\n\n if (buffers.length <= 1) {\n // for 0 length we will return empty uint8\n // for 1 length we return the first uint8\n return toUint8(buffers[0]);\n }\n\n var totalLen = buffers.reduce(function (total, buf, i) {\n return total + (buf.byteLength || buf.length);\n }, 0);\n var tempBuffer = new Uint8Array(totalLen);\n var offset = 0;\n buffers.forEach(function (buf) {\n buf = toUint8(buf);\n tempBuffer.set(buf, offset);\n offset += buf.byteLength;\n });\n return tempBuffer;\n};\n/**\n * Check if the bytes \"b\" are contained within bytes \"a\".\n *\n * @param {Uint8Array|Array} a\n * Bytes to check in\n *\n * @param {Uint8Array|Array} b\n * Bytes to check for\n *\n * @param {Object} options\n * options\n *\n * @param {Array|Uint8Array} [offset=0]\n * offset to use when looking at bytes in a\n *\n * @param {Array|Uint8Array} [mask=[]]\n * mask to use on bytes before comparison.\n *\n * @return {boolean}\n * If all bytes in b are inside of a, taking into account\n * bit masks.\n */\n\n\nexports.concatTypedArrays = concatTypedArrays;\n\nvar bytesMatch = function bytesMatch(a, b, _temp3) {\n var _ref3 = _temp3 === void 0 ? {} : _temp3,\n _ref3$offset = _ref3.offset,\n offset = _ref3$offset === void 0 ? 0 : _ref3$offset,\n _ref3$mask = _ref3.mask,\n mask = _ref3$mask === void 0 ? [] : _ref3$mask;\n\n a = toUint8(a);\n b = toUint8(b); // ie 11 does not support uint8 every\n\n var fn = b.every ? b.every : Array.prototype.every;\n return b.length && a.length - offset >= b.length && // ie 11 doesn't support every on uin8\n fn.call(b, function (bByte, i) {\n var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];\n return bByte === aByte;\n });\n};\n\nexports.bytesMatch = bytesMatch;\n\nvar sliceBytes = function sliceBytes(src, start, end) {\n if (Uint8Array.prototype.slice) {\n return Uint8Array.prototype.slice.call(src, start, end);\n }\n\n return new Uint8Array(Array.prototype.slice.call(src, start, end));\n};\n\nexports.sliceBytes = sliceBytes;\n\nvar reverseBytes = function reverseBytes(src) {\n if (src.reverse) {\n return src.reverse();\n }\n\n return Array.prototype.reverse.call(src);\n};\n\nexports.reverseBytes = reverseBytes;", "\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.forEachMediaGroup = void 0;\n\n/**\n * Loops through all supported media groups in master and calls the provided\n * callback for each group\n *\n * @param {Object} master\n * The parsed master manifest object\n * @param {string[]} groups\n * The media groups to call the callback for\n * @param {Function} callback\n * Callback to call for each media group\n */\nvar forEachMediaGroup = function forEachMediaGroup(master, groups, callback) {\n groups.forEach(function (mediaType) {\n for (var groupKey in master.mediaGroups[mediaType]) {\n for (var labelKey in master.mediaGroups[mediaType][groupKey]) {\n var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];\n callback(mediaProperties, mediaType, groupKey, labelKey);\n }\n }\n });\n};\n\nexports.forEachMediaGroup = forEachMediaGroup;", "'use strict'\n\n/**\n * Ponyfill for `Array.prototype.find` which is only available in ES6 runtimes.\n *\n * Works with anything that has a `length` property and index access properties, including NodeList.\n *\n * @template {unknown} T\n * @param {Array | ({length:number, [number]: T})} list\n * @param {function (item: T, index: number, list:Array | ({length:number, [number]: T})):boolean} predicate\n * @param {Partial>?} ac `Array.prototype` by default,\n * \t\t\t\tallows injecting a custom implementation in tests\n * @returns {T | undefined}\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find\n * @see https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.find\n */\nfunction find(list, predicate, ac) {\n\tif (ac === undefined) {\n\t\tac = Array.prototype;\n\t}\n\tif (list && typeof ac.find === 'function') {\n\t\treturn ac.find.call(list, predicate);\n\t}\n\tfor (var i = 0; i < list.length; i++) {\n\t\tif (Object.prototype.hasOwnProperty.call(list, i)) {\n\t\t\tvar item = list[i];\n\t\t\tif (predicate.call(undefined, item, i, list)) {\n\t\t\t\treturn item;\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * \"Shallow freezes\" an object to render it immutable.\n * Uses `Object.freeze` if available,\n * otherwise the immutability is only in the type.\n *\n * Is used to create \"enum like\" objects.\n *\n * @template T\n * @param {T} object the object to freeze\n * @param {Pick = Object} oc `Object` by default,\n * \t\t\t\tallows to inject custom object constructor for tests\n * @returns {Readonly}\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze\n */\nfunction freeze(object, oc) {\n\tif (oc === undefined) {\n\t\toc = Object\n\t}\n\treturn oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object\n}\n\n/**\n * Since we can not rely on `Object.assign` we provide a simplified version\n * that is sufficient for our needs.\n *\n * @param {Object} target\n * @param {Object | null | undefined} source\n *\n * @returns {Object} target\n * @throws TypeError if target is not an object\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\n * @see https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.assign\n */\nfunction assign(target, source) {\n\tif (target === null || typeof target !== 'object') {\n\t\tthrow new TypeError('target is not an object')\n\t}\n\tfor (var key in source) {\n\t\tif (Object.prototype.hasOwnProperty.call(source, key)) {\n\t\t\ttarget[key] = source[key]\n\t\t}\n\t}\n\treturn target\n}\n\n/**\n * All mime types that are allowed as input to `DOMParser.parseFromString`\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN\n * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec\n * @see DOMParser.prototype.parseFromString\n */\nvar MIME_TYPE = freeze({\n\t/**\n\t * `text/html`, the only mime type that triggers treating an XML document as HTML.\n\t *\n\t * @see DOMParser.SupportedType.isHTML\n\t * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n\t * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n\t * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec\n\t */\n\tHTML: 'text/html',\n\n\t/**\n\t * Helper method to check a mime type if it indicates an HTML document\n\t *\n\t * @param {string} [value]\n\t * @returns {boolean}\n\t *\n\t * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n\t * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n\t * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring \t */\n\tisHTML: function (value) {\n\t\treturn value === MIME_TYPE.HTML\n\t},\n\n\t/**\n\t * `application/xml`, the standard mime type for XML documents.\n\t *\n\t * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration\n\t * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303\n\t * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n\t */\n\tXML_APPLICATION: 'application/xml',\n\n\t/**\n\t * `text/html`, an alias for `application/xml`.\n\t *\n\t * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303\n\t * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration\n\t * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n\t */\n\tXML_TEXT: 'text/xml',\n\n\t/**\n\t * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,\n\t * but is parsed as an XML document.\n\t *\n\t * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec\n\t * @see https://en.wikipedia.org/wiki/XHTML Wikipedia\n\t */\n\tXML_XHTML_APPLICATION: 'application/xhtml+xml',\n\n\t/**\n\t * `image/svg+xml`,\n\t *\n\t * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration\n\t * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1\n\t * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia\n\t */\n\tXML_SVG_IMAGE: 'image/svg+xml',\n})\n\n/**\n * Namespaces that are used in this code base.\n *\n * @see http://www.w3.org/TR/REC-xml-names\n */\nvar NAMESPACE = freeze({\n\t/**\n\t * The XHTML namespace.\n\t *\n\t * @see http://www.w3.org/1999/xhtml\n\t */\n\tHTML: 'http://www.w3.org/1999/xhtml',\n\n\t/**\n\t * Checks if `uri` equals `NAMESPACE.HTML`.\n\t *\n\t * @param {string} [uri]\n\t *\n\t * @see NAMESPACE.HTML\n\t */\n\tisHTML: function (uri) {\n\t\treturn uri === NAMESPACE.HTML\n\t},\n\n\t/**\n\t * The SVG namespace.\n\t *\n\t * @see http://www.w3.org/2000/svg\n\t */\n\tSVG: 'http://www.w3.org/2000/svg',\n\n\t/**\n\t * The `xml:` namespace.\n\t *\n\t * @see http://www.w3.org/XML/1998/namespace\n\t */\n\tXML: 'http://www.w3.org/XML/1998/namespace',\n\n\t/**\n\t * The `xmlns:` namespace\n\t *\n\t * @see https://www.w3.org/2000/xmlns/\n\t */\n\tXMLNS: 'http://www.w3.org/2000/xmlns/',\n})\n\nexports.assign = assign;\nexports.find = find;\nexports.freeze = freeze;\nexports.MIME_TYPE = MIME_TYPE;\nexports.NAMESPACE = NAMESPACE;\n", "var conventions = require(\"./conventions\");\n\nvar find = conventions.find;\nvar NAMESPACE = conventions.NAMESPACE;\n\n/**\n * A prerequisite for `[].filter`, to drop elements that are empty\n * @param {string} input\n * @returns {boolean}\n */\nfunction notEmptyString (input) {\n\treturn input !== ''\n}\n/**\n * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace\n * @see https://infra.spec.whatwg.org/#ascii-whitespace\n *\n * @param {string} input\n * @returns {string[]} (can be empty)\n */\nfunction splitOnASCIIWhitespace(input) {\n\t// U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE\n\treturn input ? input.split(/[\\t\\n\\f\\r ]+/).filter(notEmptyString) : []\n}\n\n/**\n * Adds element as a key to current if it is not already present.\n *\n * @param {Record} current\n * @param {string} element\n * @returns {Record}\n */\nfunction orderedSetReducer (current, element) {\n\tif (!current.hasOwnProperty(element)) {\n\t\tcurrent[element] = true;\n\t}\n\treturn current;\n}\n\n/**\n * @see https://infra.spec.whatwg.org/#ordered-set\n * @param {string} input\n * @returns {string[]}\n */\nfunction toOrderedSet(input) {\n\tif (!input) return [];\n\tvar list = splitOnASCIIWhitespace(input);\n\treturn Object.keys(list.reduce(orderedSetReducer, {}))\n}\n\n/**\n * Uses `list.indexOf` to implement something like `Array.prototype.includes`,\n * which we can not rely on being available.\n *\n * @param {any[]} list\n * @returns {function(any): boolean}\n */\nfunction arrayIncludes (list) {\n\treturn function(element) {\n\t\treturn list && list.indexOf(element) !== -1;\n\t}\n}\n\nfunction copy(src,dest){\n\tfor(var p in src){\n\t\tif (Object.prototype.hasOwnProperty.call(src, p)) {\n\t\t\tdest[p] = src[p];\n\t\t}\n\t}\n}\n\n/**\n^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*((?:.*\\{\\s*?[\\r\\n][\\s\\S]*?^})|\\S.*?(?=[;\\r\\n]));?\n^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*(\\S.*?(?=[;\\r\\n]));?\n */\nfunction _extends(Class,Super){\n\tvar pt = Class.prototype;\n\tif(!(pt instanceof Super)){\n\t\tfunction t(){};\n\t\tt.prototype = Super.prototype;\n\t\tt = new t();\n\t\tcopy(pt,t);\n\t\tClass.prototype = pt = t;\n\t}\n\tif(pt.constructor != Class){\n\t\tif(typeof Class != 'function'){\n\t\t\tconsole.error(\"unknown Class:\"+Class)\n\t\t}\n\t\tpt.constructor = Class\n\t}\n}\n\n// Node Types\nvar NodeType = {}\nvar ELEMENT_NODE = NodeType.ELEMENT_NODE = 1;\nvar ATTRIBUTE_NODE = NodeType.ATTRIBUTE_NODE = 2;\nvar TEXT_NODE = NodeType.TEXT_NODE = 3;\nvar CDATA_SECTION_NODE = NodeType.CDATA_SECTION_NODE = 4;\nvar ENTITY_REFERENCE_NODE = NodeType.ENTITY_REFERENCE_NODE = 5;\nvar ENTITY_NODE = NodeType.ENTITY_NODE = 6;\nvar PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;\nvar COMMENT_NODE = NodeType.COMMENT_NODE = 8;\nvar DOCUMENT_NODE = NodeType.DOCUMENT_NODE = 9;\nvar DOCUMENT_TYPE_NODE = NodeType.DOCUMENT_TYPE_NODE = 10;\nvar DOCUMENT_FRAGMENT_NODE = NodeType.DOCUMENT_FRAGMENT_NODE = 11;\nvar NOTATION_NODE = NodeType.NOTATION_NODE = 12;\n\n// ExceptionCode\nvar ExceptionCode = {}\nvar ExceptionMessage = {};\nvar INDEX_SIZE_ERR = ExceptionCode.INDEX_SIZE_ERR = ((ExceptionMessage[1]=\"Index size error\"),1);\nvar DOMSTRING_SIZE_ERR = ExceptionCode.DOMSTRING_SIZE_ERR = ((ExceptionMessage[2]=\"DOMString size error\"),2);\nvar HIERARCHY_REQUEST_ERR = ExceptionCode.HIERARCHY_REQUEST_ERR = ((ExceptionMessage[3]=\"Hierarchy request error\"),3);\nvar WRONG_DOCUMENT_ERR = ExceptionCode.WRONG_DOCUMENT_ERR = ((ExceptionMessage[4]=\"Wrong document\"),4);\nvar INVALID_CHARACTER_ERR = ExceptionCode.INVALID_CHARACTER_ERR = ((ExceptionMessage[5]=\"Invalid character\"),5);\nvar NO_DATA_ALLOWED_ERR = ExceptionCode.NO_DATA_ALLOWED_ERR = ((ExceptionMessage[6]=\"No data allowed\"),6);\nvar NO_MODIFICATION_ALLOWED_ERR = ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = ((ExceptionMessage[7]=\"No modification allowed\"),7);\nvar NOT_FOUND_ERR = ExceptionCode.NOT_FOUND_ERR = ((ExceptionMessage[8]=\"Not found\"),8);\nvar NOT_SUPPORTED_ERR = ExceptionCode.NOT_SUPPORTED_ERR = ((ExceptionMessage[9]=\"Not supported\"),9);\nvar INUSE_ATTRIBUTE_ERR = ExceptionCode.INUSE_ATTRIBUTE_ERR = ((ExceptionMessage[10]=\"Attribute in use\"),10);\n//level2\nvar INVALID_STATE_ERR \t= ExceptionCode.INVALID_STATE_ERR \t= ((ExceptionMessage[11]=\"Invalid state\"),11);\nvar SYNTAX_ERR \t= ExceptionCode.SYNTAX_ERR \t= ((ExceptionMessage[12]=\"Syntax error\"),12);\nvar INVALID_MODIFICATION_ERR \t= ExceptionCode.INVALID_MODIFICATION_ERR \t= ((ExceptionMessage[13]=\"Invalid modification\"),13);\nvar NAMESPACE_ERR \t= ExceptionCode.NAMESPACE_ERR \t= ((ExceptionMessage[14]=\"Invalid namespace\"),14);\nvar INVALID_ACCESS_ERR \t= ExceptionCode.INVALID_ACCESS_ERR \t= ((ExceptionMessage[15]=\"Invalid access\"),15);\n\n/**\n * DOM Level 2\n * Object DOMException\n * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html\n * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html\n */\nfunction DOMException(code, message) {\n\tif(message instanceof Error){\n\t\tvar error = message;\n\t}else{\n\t\terror = this;\n\t\tError.call(this, ExceptionMessage[code]);\n\t\tthis.message = ExceptionMessage[code];\n\t\tif(Error.captureStackTrace) Error.captureStackTrace(this, DOMException);\n\t}\n\terror.code = code;\n\tif(message) this.message = this.message + \": \" + message;\n\treturn error;\n};\nDOMException.prototype = Error.prototype;\ncopy(ExceptionCode,DOMException)\n\n/**\n * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177\n * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.\n * The items in the NodeList are accessible via an integral index, starting from 0.\n */\nfunction NodeList() {\n};\nNodeList.prototype = {\n\t/**\n\t * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.\n\t * @standard level1\n\t */\n\tlength:0,\n\t/**\n\t * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.\n\t * @standard level1\n\t * @param index unsigned long\n\t * Index into the collection.\n\t * @return Node\n\t * \tThe node at the indexth position in the NodeList, or null if that is not a valid index.\n\t */\n\titem: function(index) {\n\t\treturn index >= 0 && index < this.length ? this[index] : null;\n\t},\n\ttoString:function(isHTML,nodeFilter){\n\t\tfor(var buf = [], i = 0;i=0){\n\t\tvar lastIndex = list.length-1\n\t\twhile(i0 || key == 'xmlns'){\n//\t\t\treturn null;\n//\t\t}\n\t\t//console.log()\n\t\tvar i = this.length;\n\t\twhile(i--){\n\t\t\tvar attr = this[i];\n\t\t\t//console.log(attr.nodeName,key)\n\t\t\tif(attr.nodeName == key){\n\t\t\t\treturn attr;\n\t\t\t}\n\t\t}\n\t},\n\tsetNamedItem: function(attr) {\n\t\tvar el = attr.ownerElement;\n\t\tif(el && el!=this._ownerElement){\n\t\t\tthrow new DOMException(INUSE_ATTRIBUTE_ERR);\n\t\t}\n\t\tvar oldAttr = this.getNamedItem(attr.nodeName);\n\t\t_addNamedNode(this._ownerElement,this,attr,oldAttr);\n\t\treturn oldAttr;\n\t},\n\t/* returns Node */\n\tsetNamedItemNS: function(attr) {// raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR\n\t\tvar el = attr.ownerElement, oldAttr;\n\t\tif(el && el!=this._ownerElement){\n\t\t\tthrow new DOMException(INUSE_ATTRIBUTE_ERR);\n\t\t}\n\t\toldAttr = this.getNamedItemNS(attr.namespaceURI,attr.localName);\n\t\t_addNamedNode(this._ownerElement,this,attr,oldAttr);\n\t\treturn oldAttr;\n\t},\n\n\t/* returns Node */\n\tremoveNamedItem: function(key) {\n\t\tvar attr = this.getNamedItem(key);\n\t\t_removeNamedNode(this._ownerElement,this,attr);\n\t\treturn attr;\n\n\n\t},// raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR\n\n\t//for level2\n\tremoveNamedItemNS:function(namespaceURI,localName){\n\t\tvar attr = this.getNamedItemNS(namespaceURI,localName);\n\t\t_removeNamedNode(this._ownerElement,this,attr);\n\t\treturn attr;\n\t},\n\tgetNamedItemNS: function(namespaceURI, localName) {\n\t\tvar i = this.length;\n\t\twhile(i--){\n\t\t\tvar node = this[i];\n\t\t\tif(node.localName == localName && node.namespaceURI == namespaceURI){\n\t\t\t\treturn node;\n\t\t\t}\n\t\t}\n\t\treturn null;\n\t}\n};\n\n/**\n * The DOMImplementation interface represents an object providing methods\n * which are not dependent on any particular document.\n * Such an object is returned by the `Document.implementation` property.\n *\n * __The individual methods describe the differences compared to the specs.__\n *\n * @constructor\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN\n * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)\n * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core\n * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core\n * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard\n */\nfunction DOMImplementation() {\n}\n\nDOMImplementation.prototype = {\n\t/**\n\t * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.\n\t * The different implementations fairly diverged in what kind of features were reported.\n\t * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.\n\t *\n\t * @deprecated It is deprecated and modern browsers return true in all cases.\n\t *\n\t * @param {string} feature\n\t * @param {string} [version]\n\t * @returns {boolean} always true\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN\n\t * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard\n\t */\n\thasFeature: function(feature, version) {\n\t\t\treturn true;\n\t},\n\t/**\n\t * Creates an XML Document object of the specified type with its document element.\n\t *\n\t * __It behaves slightly different from the description in the living standard__:\n\t * - There is no interface/class `XMLDocument`, it returns a `Document` instance.\n\t * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.\n\t * - this implementation is not validating names or qualified names\n\t * (when parsing XML strings, the SAX parser takes care of that)\n\t *\n\t * @param {string|null} namespaceURI\n\t * @param {string} qualifiedName\n\t * @param {DocumentType=null} doctype\n\t * @returns {Document}\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN\n\t * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument DOM Level 2 Core\n\t *\n\t * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n\t * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n\t * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n\t */\n\tcreateDocument: function(namespaceURI, qualifiedName, doctype){\n\t\tvar doc = new Document();\n\t\tdoc.implementation = this;\n\t\tdoc.childNodes = new NodeList();\n\t\tdoc.doctype = doctype || null;\n\t\tif (doctype){\n\t\t\tdoc.appendChild(doctype);\n\t\t}\n\t\tif (qualifiedName){\n\t\t\tvar root = doc.createElementNS(namespaceURI, qualifiedName);\n\t\t\tdoc.appendChild(root);\n\t\t}\n\t\treturn doc;\n\t},\n\t/**\n\t * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.\n\t *\n\t * __This behavior is slightly different from the in the specs__:\n\t * - this implementation is not validating names or qualified names\n\t * (when parsing XML strings, the SAX parser takes care of that)\n\t *\n\t * @param {string} qualifiedName\n\t * @param {string} [publicId]\n\t * @param {string} [systemId]\n\t * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation\n\t * \t\t\t\t or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN\n\t * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard\n\t *\n\t * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n\t * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n\t * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n\t */\n\tcreateDocumentType: function(qualifiedName, publicId, systemId){\n\t\tvar node = new DocumentType();\n\t\tnode.name = qualifiedName;\n\t\tnode.nodeName = qualifiedName;\n\t\tnode.publicId = publicId || '';\n\t\tnode.systemId = systemId || '';\n\n\t\treturn node;\n\t}\n};\n\n\n/**\n * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247\n */\n\nfunction Node() {\n};\n\nNode.prototype = {\n\tfirstChild : null,\n\tlastChild : null,\n\tpreviousSibling : null,\n\tnextSibling : null,\n\tattributes : null,\n\tparentNode : null,\n\tchildNodes : null,\n\townerDocument : null,\n\tnodeValue : null,\n\tnamespaceURI : null,\n\tprefix : null,\n\tlocalName : null,\n\t// Modified in DOM Level 2:\n\tinsertBefore:function(newChild, refChild){//raises\n\t\treturn _insertBefore(this,newChild,refChild);\n\t},\n\treplaceChild:function(newChild, oldChild){//raises\n\t\t_insertBefore(this, newChild,oldChild, assertPreReplacementValidityInDocument);\n\t\tif(oldChild){\n\t\t\tthis.removeChild(oldChild);\n\t\t}\n\t},\n\tremoveChild:function(oldChild){\n\t\treturn _removeChild(this,oldChild);\n\t},\n\tappendChild:function(newChild){\n\t\treturn this.insertBefore(newChild,null);\n\t},\n\thasChildNodes:function(){\n\t\treturn this.firstChild != null;\n\t},\n\tcloneNode:function(deep){\n\t\treturn cloneNode(this.ownerDocument||this,this,deep);\n\t},\n\t// Modified in DOM Level 2:\n\tnormalize:function(){\n\t\tvar child = this.firstChild;\n\t\twhile(child){\n\t\t\tvar next = child.nextSibling;\n\t\t\tif(next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE){\n\t\t\t\tthis.removeChild(next);\n\t\t\t\tchild.appendData(next.data);\n\t\t\t}else{\n\t\t\t\tchild.normalize();\n\t\t\t\tchild = next;\n\t\t\t}\n\t\t}\n\t},\n \t// Introduced in DOM Level 2:\n\tisSupported:function(feature, version){\n\t\treturn this.ownerDocument.implementation.hasFeature(feature,version);\n\t},\n // Introduced in DOM Level 2:\n hasAttributes:function(){\n \treturn this.attributes.length>0;\n },\n\t/**\n\t * Look up the prefix associated to the given namespace URI, starting from this node.\n\t * **The default namespace declarations are ignored by this method.**\n\t * See Namespace Prefix Lookup for details on the algorithm used by this method.\n\t *\n\t * _Note: The implementation seems to be incomplete when compared to the algorithm described in the specs._\n\t *\n\t * @param {string | null} namespaceURI\n\t * @returns {string | null}\n\t * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespacePrefix\n\t * @see https://www.w3.org/TR/DOM-Level-3-Core/namespaces-algorithms.html#lookupNamespacePrefixAlgo\n\t * @see https://dom.spec.whatwg.org/#dom-node-lookupprefix\n\t * @see https://github.com/xmldom/xmldom/issues/322\n\t */\n lookupPrefix:function(namespaceURI){\n \tvar el = this;\n \twhile(el){\n \t\tvar map = el._nsMap;\n \t\t//console.dir(map)\n \t\tif(map){\n \t\t\tfor(var n in map){\n\t\t\t\t\t\tif (Object.prototype.hasOwnProperty.call(map, n) && map[n] === namespaceURI) {\n\t\t\t\t\t\t\treturn n;\n\t\t\t\t\t\t}\n \t\t\t}\n \t\t}\n \t\tel = el.nodeType == ATTRIBUTE_NODE?el.ownerDocument : el.parentNode;\n \t}\n \treturn null;\n },\n // Introduced in DOM Level 3:\n lookupNamespaceURI:function(prefix){\n \tvar el = this;\n \twhile(el){\n \t\tvar map = el._nsMap;\n \t\t//console.dir(map)\n \t\tif(map){\n \t\t\tif(Object.prototype.hasOwnProperty.call(map, prefix)){\n \t\t\t\treturn map[prefix] ;\n \t\t\t}\n \t\t}\n \t\tel = el.nodeType == ATTRIBUTE_NODE?el.ownerDocument : el.parentNode;\n \t}\n \treturn null;\n },\n // Introduced in DOM Level 3:\n isDefaultNamespace:function(namespaceURI){\n \tvar prefix = this.lookupPrefix(namespaceURI);\n \treturn prefix == null;\n }\n};\n\n\nfunction _xmlEncoder(c){\n\treturn c == '<' && '<' ||\n c == '>' && '>' ||\n c == '&' && '&' ||\n c == '\"' && '"' ||\n '&#'+c.charCodeAt()+';'\n}\n\n\ncopy(NodeType,Node);\ncopy(NodeType,Node.prototype);\n\n/**\n * @param callback return true for continue,false for break\n * @return boolean true: break visit;\n */\nfunction _visitNode(node,callback){\n\tif(callback(node)){\n\t\treturn true;\n\t}\n\tif(node = node.firstChild){\n\t\tdo{\n\t\t\tif(_visitNode(node,callback)){return true}\n }while(node=node.nextSibling)\n }\n}\n\n\n\nfunction Document(){\n\tthis.ownerDocument = this;\n}\n\nfunction _onAddAttribute(doc,el,newAttr){\n\tdoc && doc._inc++;\n\tvar ns = newAttr.namespaceURI ;\n\tif(ns === NAMESPACE.XMLNS){\n\t\t//update namespace\n\t\tel._nsMap[newAttr.prefix?newAttr.localName:''] = newAttr.value\n\t}\n}\n\nfunction _onRemoveAttribute(doc,el,newAttr,remove){\n\tdoc && doc._inc++;\n\tvar ns = newAttr.namespaceURI ;\n\tif(ns === NAMESPACE.XMLNS){\n\t\t//update namespace\n\t\tdelete el._nsMap[newAttr.prefix?newAttr.localName:'']\n\t}\n}\n\n/**\n * Updates `el.childNodes`, updating the indexed items and it's `length`.\n * Passing `newChild` means it will be appended.\n * Otherwise it's assumed that an item has been removed,\n * and `el.firstNode` and it's `.nextSibling` are used\n * to walk the current list of child nodes.\n *\n * @param {Document} doc\n * @param {Node} el\n * @param {Node} [newChild]\n * @private\n */\nfunction _onUpdateChild (doc, el, newChild) {\n\tif(doc && doc._inc){\n\t\tdoc._inc++;\n\t\t//update childNodes\n\t\tvar cs = el.childNodes;\n\t\tif (newChild) {\n\t\t\tcs[cs.length++] = newChild;\n\t\t} else {\n\t\t\tvar child = el.firstChild;\n\t\t\tvar i = 0;\n\t\t\twhile (child) {\n\t\t\t\tcs[i++] = child;\n\t\t\t\tchild = child.nextSibling;\n\t\t\t}\n\t\t\tcs.length = i;\n\t\t\tdelete cs[cs.length];\n\t\t}\n\t}\n}\n\n/**\n * Removes the connections between `parentNode` and `child`\n * and any existing `child.previousSibling` or `child.nextSibling`.\n *\n * @see https://github.com/xmldom/xmldom/issues/135\n * @see https://github.com/xmldom/xmldom/issues/145\n *\n * @param {Node} parentNode\n * @param {Node} child\n * @returns {Node} the child that was removed.\n * @private\n */\nfunction _removeChild (parentNode, child) {\n\tvar previous = child.previousSibling;\n\tvar next = child.nextSibling;\n\tif (previous) {\n\t\tprevious.nextSibling = next;\n\t} else {\n\t\tparentNode.firstChild = next;\n\t}\n\tif (next) {\n\t\tnext.previousSibling = previous;\n\t} else {\n\t\tparentNode.lastChild = previous;\n\t}\n\tchild.parentNode = null;\n\tchild.previousSibling = null;\n\tchild.nextSibling = null;\n\t_onUpdateChild(parentNode.ownerDocument, parentNode);\n\treturn child;\n}\n\n/**\n * Returns `true` if `node` can be a parent for insertion.\n * @param {Node} node\n * @returns {boolean}\n */\nfunction hasValidParentNodeType(node) {\n\treturn (\n\t\tnode &&\n\t\t(node.nodeType === Node.DOCUMENT_NODE || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.ELEMENT_NODE)\n\t);\n}\n\n/**\n * Returns `true` if `node` can be inserted according to it's `nodeType`.\n * @param {Node} node\n * @returns {boolean}\n */\nfunction hasInsertableNodeType(node) {\n\treturn (\n\t\tnode &&\n\t\t(isElementNode(node) ||\n\t\t\tisTextNode(node) ||\n\t\t\tisDocTypeNode(node) ||\n\t\t\tnode.nodeType === Node.DOCUMENT_FRAGMENT_NODE ||\n\t\t\tnode.nodeType === Node.COMMENT_NODE ||\n\t\t\tnode.nodeType === Node.PROCESSING_INSTRUCTION_NODE)\n\t);\n}\n\n/**\n * Returns true if `node` is a DOCTYPE node\n * @param {Node} node\n * @returns {boolean}\n */\nfunction isDocTypeNode(node) {\n\treturn node && node.nodeType === Node.DOCUMENT_TYPE_NODE;\n}\n\n/**\n * Returns true if the node is an element\n * @param {Node} node\n * @returns {boolean}\n */\nfunction isElementNode(node) {\n\treturn node && node.nodeType === Node.ELEMENT_NODE;\n}\n/**\n * Returns true if `node` is a text node\n * @param {Node} node\n * @returns {boolean}\n */\nfunction isTextNode(node) {\n\treturn node && node.nodeType === Node.TEXT_NODE;\n}\n\n/**\n * Check if en element node can be inserted before `child`, or at the end if child is falsy,\n * according to the presence and position of a doctype node on the same level.\n *\n * @param {Document} doc The document node\n * @param {Node} child the node that would become the nextSibling if the element would be inserted\n * @returns {boolean} `true` if an element can be inserted before child\n * @private\n * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n */\nfunction isElementInsertionPossible(doc, child) {\n\tvar parentChildNodes = doc.childNodes || [];\n\tif (find(parentChildNodes, isElementNode) || isDocTypeNode(child)) {\n\t\treturn false;\n\t}\n\tvar docTypeNode = find(parentChildNodes, isDocTypeNode);\n\treturn !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));\n}\n\n/**\n * Check if en element node can be inserted before `child`, or at the end if child is falsy,\n * according to the presence and position of a doctype node on the same level.\n *\n * @param {Node} doc The document node\n * @param {Node} child the node that would become the nextSibling if the element would be inserted\n * @returns {boolean} `true` if an element can be inserted before child\n * @private\n * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n */\nfunction isElementReplacementPossible(doc, child) {\n\tvar parentChildNodes = doc.childNodes || [];\n\n\tfunction hasElementChildThatIsNotChild(node) {\n\t\treturn isElementNode(node) && node !== child;\n\t}\n\n\tif (find(parentChildNodes, hasElementChildThatIsNotChild)) {\n\t\treturn false;\n\t}\n\tvar docTypeNode = find(parentChildNodes, isDocTypeNode);\n\treturn !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));\n}\n\n/**\n * @private\n * Steps 1-5 of the checks before inserting and before replacing a child are the same.\n *\n * @param {Node} parent the parent node to insert `node` into\n * @param {Node} node the node to insert\n * @param {Node=} child the node that should become the `nextSibling` of `node`\n * @returns {Node}\n * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n * @throws DOMException if `child` is provided but is not a child of `parent`.\n * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n * @see https://dom.spec.whatwg.org/#concept-node-replace\n */\nfunction assertPreInsertionValidity1to5(parent, node, child) {\n\t// 1. If `parent` is not a Document, DocumentFragment, or Element node, then throw a \"HierarchyRequestError\" DOMException.\n\tif (!hasValidParentNodeType(parent)) {\n\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected parent node type ' + parent.nodeType);\n\t}\n\t// 2. If `node` is a host-including inclusive ancestor of `parent`, then throw a \"HierarchyRequestError\" DOMException.\n\t// not implemented!\n\t// 3. If `child` is non-null and its parent is not `parent`, then throw a \"NotFoundError\" DOMException.\n\tif (child && child.parentNode !== parent) {\n\t\tthrow new DOMException(NOT_FOUND_ERR, 'child not in parent');\n\t}\n\tif (\n\t\t// 4. If `node` is not a DocumentFragment, DocumentType, Element, or CharacterData node, then throw a \"HierarchyRequestError\" DOMException.\n\t\t!hasInsertableNodeType(node) ||\n\t\t// 5. If either `node` is a Text node and `parent` is a document,\n\t\t// the sax parser currently adds top level text nodes, this will be fixed in 0.9.0\n\t\t// || (node.nodeType === Node.TEXT_NODE && parent.nodeType === Node.DOCUMENT_NODE)\n\t\t// or `node` is a doctype and `parent` is not a document, then throw a \"HierarchyRequestError\" DOMException.\n\t\t(isDocTypeNode(node) && parent.nodeType !== Node.DOCUMENT_NODE)\n\t) {\n\t\tthrow new DOMException(\n\t\t\tHIERARCHY_REQUEST_ERR,\n\t\t\t'Unexpected node type ' + node.nodeType + ' for parent node type ' + parent.nodeType\n\t\t);\n\t}\n}\n\n/**\n * @private\n * Step 6 of the checks before inserting and before replacing a child are different.\n *\n * @param {Document} parent the parent node to insert `node` into\n * @param {Node} node the node to insert\n * @param {Node | undefined} child the node that should become the `nextSibling` of `node`\n * @returns {Node}\n * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n * @throws DOMException if `child` is provided but is not a child of `parent`.\n * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n * @see https://dom.spec.whatwg.org/#concept-node-replace\n */\nfunction assertPreInsertionValidityInDocument(parent, node, child) {\n\tvar parentChildNodes = parent.childNodes || [];\n\tvar nodeChildNodes = node.childNodes || [];\n\n\t// DocumentFragment\n\tif (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {\n\t\tvar nodeChildElements = nodeChildNodes.filter(isElementNode);\n\t\t// If node has more than one element child or has a Text node child.\n\t\tif (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');\n\t\t}\n\t\t// Otherwise, if `node` has one element child and either `parent` has an element child,\n\t\t// `child` is a doctype, or `child` is non-null and a doctype is following `child`.\n\t\tif (nodeChildElements.length === 1 && !isElementInsertionPossible(parent, child)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');\n\t\t}\n\t}\n\t// Element\n\tif (isElementNode(node)) {\n\t\t// `parent` has an element child, `child` is a doctype,\n\t\t// or `child` is non-null and a doctype is following `child`.\n\t\tif (!isElementInsertionPossible(parent, child)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');\n\t\t}\n\t}\n\t// DocumentType\n\tif (isDocTypeNode(node)) {\n\t\t// `parent` has a doctype child,\n\t\tif (find(parentChildNodes, isDocTypeNode)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');\n\t\t}\n\t\tvar parentElementChild = find(parentChildNodes, isElementNode);\n\t\t// `child` is non-null and an element is preceding `child`,\n\t\tif (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');\n\t\t}\n\t\t// or `child` is null and `parent` has an element child.\n\t\tif (!child && parentElementChild) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can not be appended since element is present');\n\t\t}\n\t}\n}\n\n/**\n * @private\n * Step 6 of the checks before inserting and before replacing a child are different.\n *\n * @param {Document} parent the parent node to insert `node` into\n * @param {Node} node the node to insert\n * @param {Node | undefined} child the node that should become the `nextSibling` of `node`\n * @returns {Node}\n * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n * @throws DOMException if `child` is provided but is not a child of `parent`.\n * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n * @see https://dom.spec.whatwg.org/#concept-node-replace\n */\nfunction assertPreReplacementValidityInDocument(parent, node, child) {\n\tvar parentChildNodes = parent.childNodes || [];\n\tvar nodeChildNodes = node.childNodes || [];\n\n\t// DocumentFragment\n\tif (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {\n\t\tvar nodeChildElements = nodeChildNodes.filter(isElementNode);\n\t\t// If `node` has more than one element child or has a Text node child.\n\t\tif (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');\n\t\t}\n\t\t// Otherwise, if `node` has one element child and either `parent` has an element child that is not `child` or a doctype is following `child`.\n\t\tif (nodeChildElements.length === 1 && !isElementReplacementPossible(parent, child)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');\n\t\t}\n\t}\n\t// Element\n\tif (isElementNode(node)) {\n\t\t// `parent` has an element child that is not `child` or a doctype is following `child`.\n\t\tif (!isElementReplacementPossible(parent, child)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');\n\t\t}\n\t}\n\t// DocumentType\n\tif (isDocTypeNode(node)) {\n\t\tfunction hasDoctypeChildThatIsNotChild(node) {\n\t\t\treturn isDocTypeNode(node) && node !== child;\n\t\t}\n\n\t\t// `parent` has a doctype child that is not `child`,\n\t\tif (find(parentChildNodes, hasDoctypeChildThatIsNotChild)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');\n\t\t}\n\t\tvar parentElementChild = find(parentChildNodes, isElementNode);\n\t\t// or an element is preceding `child`.\n\t\tif (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {\n\t\t\tthrow new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');\n\t\t}\n\t}\n}\n\n/**\n * @private\n * @param {Node} parent the parent node to insert `node` into\n * @param {Node} node the node to insert\n * @param {Node=} child the node that should become the `nextSibling` of `node`\n * @returns {Node}\n * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n * @throws DOMException if `child` is provided but is not a child of `parent`.\n * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n */\nfunction _insertBefore(parent, node, child, _inDocumentAssertion) {\n\t// To ensure pre-insertion validity of a node into a parent before a child, run these steps:\n\tassertPreInsertionValidity1to5(parent, node, child);\n\n\t// If parent is a document, and any of the statements below, switched on the interface node implements,\n\t// are true, then throw a \"HierarchyRequestError\" DOMException.\n\tif (parent.nodeType === Node.DOCUMENT_NODE) {\n\t\t(_inDocumentAssertion || assertPreInsertionValidityInDocument)(parent, node, child);\n\t}\n\n\tvar cp = node.parentNode;\n\tif(cp){\n\t\tcp.removeChild(node);//remove and update\n\t}\n\tif(node.nodeType === DOCUMENT_FRAGMENT_NODE){\n\t\tvar newFirst = node.firstChild;\n\t\tif (newFirst == null) {\n\t\t\treturn node;\n\t\t}\n\t\tvar newLast = node.lastChild;\n\t}else{\n\t\tnewFirst = newLast = node;\n\t}\n\tvar pre = child ? child.previousSibling : parent.lastChild;\n\n\tnewFirst.previousSibling = pre;\n\tnewLast.nextSibling = child;\n\n\n\tif(pre){\n\t\tpre.nextSibling = newFirst;\n\t}else{\n\t\tparent.firstChild = newFirst;\n\t}\n\tif(child == null){\n\t\tparent.lastChild = newLast;\n\t}else{\n\t\tchild.previousSibling = newLast;\n\t}\n\tdo{\n\t\tnewFirst.parentNode = parent;\n\t}while(newFirst !== newLast && (newFirst= newFirst.nextSibling))\n\t_onUpdateChild(parent.ownerDocument||parent, parent);\n\t//console.log(parent.lastChild.nextSibling == null)\n\tif (node.nodeType == DOCUMENT_FRAGMENT_NODE) {\n\t\tnode.firstChild = node.lastChild = null;\n\t}\n\treturn node;\n}\n\n/**\n * Appends `newChild` to `parentNode`.\n * If `newChild` is already connected to a `parentNode` it is first removed from it.\n *\n * @see https://github.com/xmldom/xmldom/issues/135\n * @see https://github.com/xmldom/xmldom/issues/145\n * @param {Node} parentNode\n * @param {Node} newChild\n * @returns {Node}\n * @private\n */\nfunction _appendSingleChild (parentNode, newChild) {\n\tif (newChild.parentNode) {\n\t\tnewChild.parentNode.removeChild(newChild);\n\t}\n\tnewChild.parentNode = parentNode;\n\tnewChild.previousSibling = parentNode.lastChild;\n\tnewChild.nextSibling = null;\n\tif (newChild.previousSibling) {\n\t\tnewChild.previousSibling.nextSibling = newChild;\n\t} else {\n\t\tparentNode.firstChild = newChild;\n\t}\n\tparentNode.lastChild = newChild;\n\t_onUpdateChild(parentNode.ownerDocument, parentNode, newChild);\n\treturn newChild;\n}\n\nDocument.prototype = {\n\t//implementation : null,\n\tnodeName : '#document',\n\tnodeType : DOCUMENT_NODE,\n\t/**\n\t * The DocumentType node of the document.\n\t *\n\t * @readonly\n\t * @type DocumentType\n\t */\n\tdoctype : null,\n\tdocumentElement : null,\n\t_inc : 1,\n\n\tinsertBefore : function(newChild, refChild){//raises\n\t\tif(newChild.nodeType == DOCUMENT_FRAGMENT_NODE){\n\t\t\tvar child = newChild.firstChild;\n\t\t\twhile(child){\n\t\t\t\tvar next = child.nextSibling;\n\t\t\t\tthis.insertBefore(child,refChild);\n\t\t\t\tchild = next;\n\t\t\t}\n\t\t\treturn newChild;\n\t\t}\n\t\t_insertBefore(this, newChild, refChild);\n\t\tnewChild.ownerDocument = this;\n\t\tif (this.documentElement === null && newChild.nodeType === ELEMENT_NODE) {\n\t\t\tthis.documentElement = newChild;\n\t\t}\n\n\t\treturn newChild;\n\t},\n\tremoveChild : function(oldChild){\n\t\tif(this.documentElement == oldChild){\n\t\t\tthis.documentElement = null;\n\t\t}\n\t\treturn _removeChild(this,oldChild);\n\t},\n\treplaceChild: function (newChild, oldChild) {\n\t\t//raises\n\t\t_insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);\n\t\tnewChild.ownerDocument = this;\n\t\tif (oldChild) {\n\t\t\tthis.removeChild(oldChild);\n\t\t}\n\t\tif (isElementNode(newChild)) {\n\t\t\tthis.documentElement = newChild;\n\t\t}\n\t},\n\t// Introduced in DOM Level 2:\n\timportNode : function(importedNode,deep){\n\t\treturn importNode(this,importedNode,deep);\n\t},\n\t// Introduced in DOM Level 2:\n\tgetElementById :\tfunction(id){\n\t\tvar rtv = null;\n\t\t_visitNode(this.documentElement,function(node){\n\t\t\tif(node.nodeType == ELEMENT_NODE){\n\t\t\t\tif(node.getAttribute('id') == id){\n\t\t\t\t\trtv = node;\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t})\n\t\treturn rtv;\n\t},\n\n\t/**\n\t * The `getElementsByClassName` method of `Document` interface returns an array-like object\n\t * of all child elements which have **all** of the given class name(s).\n\t *\n\t * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.\n\t *\n\t *\n\t * Warning: This is a live LiveNodeList.\n\t * Changes in the DOM will reflect in the array as the changes occur.\n\t * If an element selected by this array no longer qualifies for the selector,\n\t * it will automatically be removed. Be aware of this for iteration purposes.\n\t *\n\t * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName\n\t * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname\n\t */\n\tgetElementsByClassName: function(classNames) {\n\t\tvar classNamesSet = toOrderedSet(classNames)\n\t\treturn new LiveNodeList(this, function(base) {\n\t\t\tvar ls = [];\n\t\t\tif (classNamesSet.length > 0) {\n\t\t\t\t_visitNode(base.documentElement, function(node) {\n\t\t\t\t\tif(node !== base && node.nodeType === ELEMENT_NODE) {\n\t\t\t\t\t\tvar nodeClassNames = node.getAttribute('class')\n\t\t\t\t\t\t// can be null if the attribute does not exist\n\t\t\t\t\t\tif (nodeClassNames) {\n\t\t\t\t\t\t\t// before splitting and iterating just compare them for the most common case\n\t\t\t\t\t\t\tvar matches = classNames === nodeClassNames;\n\t\t\t\t\t\t\tif (!matches) {\n\t\t\t\t\t\t\t\tvar nodeClassNamesSet = toOrderedSet(nodeClassNames)\n\t\t\t\t\t\t\t\tmatches = classNamesSet.every(arrayIncludes(nodeClassNamesSet))\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tif(matches) {\n\t\t\t\t\t\t\t\tls.push(node);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t}\n\t\t\treturn ls;\n\t\t});\n\t},\n\n\t//document factory method:\n\tcreateElement :\tfunction(tagName){\n\t\tvar node = new Element();\n\t\tnode.ownerDocument = this;\n\t\tnode.nodeName = tagName;\n\t\tnode.tagName = tagName;\n\t\tnode.localName = tagName;\n\t\tnode.childNodes = new NodeList();\n\t\tvar attrs\t= node.attributes = new NamedNodeMap();\n\t\tattrs._ownerElement = node;\n\t\treturn node;\n\t},\n\tcreateDocumentFragment :\tfunction(){\n\t\tvar node = new DocumentFragment();\n\t\tnode.ownerDocument = this;\n\t\tnode.childNodes = new NodeList();\n\t\treturn node;\n\t},\n\tcreateTextNode :\tfunction(data){\n\t\tvar node = new Text();\n\t\tnode.ownerDocument = this;\n\t\tnode.appendData(data)\n\t\treturn node;\n\t},\n\tcreateComment :\tfunction(data){\n\t\tvar node = new Comment();\n\t\tnode.ownerDocument = this;\n\t\tnode.appendData(data)\n\t\treturn node;\n\t},\n\tcreateCDATASection :\tfunction(data){\n\t\tvar node = new CDATASection();\n\t\tnode.ownerDocument = this;\n\t\tnode.appendData(data)\n\t\treturn node;\n\t},\n\tcreateProcessingInstruction :\tfunction(target,data){\n\t\tvar node = new ProcessingInstruction();\n\t\tnode.ownerDocument = this;\n\t\tnode.tagName = node.nodeName = node.target = target;\n\t\tnode.nodeValue = node.data = data;\n\t\treturn node;\n\t},\n\tcreateAttribute :\tfunction(name){\n\t\tvar node = new Attr();\n\t\tnode.ownerDocument\t= this;\n\t\tnode.name = name;\n\t\tnode.nodeName\t= name;\n\t\tnode.localName = name;\n\t\tnode.specified = true;\n\t\treturn node;\n\t},\n\tcreateEntityReference :\tfunction(name){\n\t\tvar node = new EntityReference();\n\t\tnode.ownerDocument\t= this;\n\t\tnode.nodeName\t= name;\n\t\treturn node;\n\t},\n\t// Introduced in DOM Level 2:\n\tcreateElementNS :\tfunction(namespaceURI,qualifiedName){\n\t\tvar node = new Element();\n\t\tvar pl = qualifiedName.split(':');\n\t\tvar attrs\t= node.attributes = new NamedNodeMap();\n\t\tnode.childNodes = new NodeList();\n\t\tnode.ownerDocument = this;\n\t\tnode.nodeName = qualifiedName;\n\t\tnode.tagName = qualifiedName;\n\t\tnode.namespaceURI = namespaceURI;\n\t\tif(pl.length == 2){\n\t\t\tnode.prefix = pl[0];\n\t\t\tnode.localName = pl[1];\n\t\t}else{\n\t\t\t//el.prefix = null;\n\t\t\tnode.localName = qualifiedName;\n\t\t}\n\t\tattrs._ownerElement = node;\n\t\treturn node;\n\t},\n\t// Introduced in DOM Level 2:\n\tcreateAttributeNS :\tfunction(namespaceURI,qualifiedName){\n\t\tvar node = new Attr();\n\t\tvar pl = qualifiedName.split(':');\n\t\tnode.ownerDocument = this;\n\t\tnode.nodeName = qualifiedName;\n\t\tnode.name = qualifiedName;\n\t\tnode.namespaceURI = namespaceURI;\n\t\tnode.specified = true;\n\t\tif(pl.length == 2){\n\t\t\tnode.prefix = pl[0];\n\t\t\tnode.localName = pl[1];\n\t\t}else{\n\t\t\t//el.prefix = null;\n\t\t\tnode.localName = qualifiedName;\n\t\t}\n\t\treturn node;\n\t}\n};\n_extends(Document,Node);\n\n\nfunction Element() {\n\tthis._nsMap = {};\n};\nElement.prototype = {\n\tnodeType : ELEMENT_NODE,\n\thasAttribute : function(name){\n\t\treturn this.getAttributeNode(name)!=null;\n\t},\n\tgetAttribute : function(name){\n\t\tvar attr = this.getAttributeNode(name);\n\t\treturn attr && attr.value || '';\n\t},\n\tgetAttributeNode : function(name){\n\t\treturn this.attributes.getNamedItem(name);\n\t},\n\tsetAttribute : function(name, value){\n\t\tvar attr = this.ownerDocument.createAttribute(name);\n\t\tattr.value = attr.nodeValue = \"\" + value;\n\t\tthis.setAttributeNode(attr)\n\t},\n\tremoveAttribute : function(name){\n\t\tvar attr = this.getAttributeNode(name)\n\t\tattr && this.removeAttributeNode(attr);\n\t},\n\n\t//four real opeartion method\n\tappendChild:function(newChild){\n\t\tif(newChild.nodeType === DOCUMENT_FRAGMENT_NODE){\n\t\t\treturn this.insertBefore(newChild,null);\n\t\t}else{\n\t\t\treturn _appendSingleChild(this,newChild);\n\t\t}\n\t},\n\tsetAttributeNode : function(newAttr){\n\t\treturn this.attributes.setNamedItem(newAttr);\n\t},\n\tsetAttributeNodeNS : function(newAttr){\n\t\treturn this.attributes.setNamedItemNS(newAttr);\n\t},\n\tremoveAttributeNode : function(oldAttr){\n\t\t//console.log(this == oldAttr.ownerElement)\n\t\treturn this.attributes.removeNamedItem(oldAttr.nodeName);\n\t},\n\t//get real attribute name,and remove it by removeAttributeNode\n\tremoveAttributeNS : function(namespaceURI, localName){\n\t\tvar old = this.getAttributeNodeNS(namespaceURI, localName);\n\t\told && this.removeAttributeNode(old);\n\t},\n\n\thasAttributeNS : function(namespaceURI, localName){\n\t\treturn this.getAttributeNodeNS(namespaceURI, localName)!=null;\n\t},\n\tgetAttributeNS : function(namespaceURI, localName){\n\t\tvar attr = this.getAttributeNodeNS(namespaceURI, localName);\n\t\treturn attr && attr.value || '';\n\t},\n\tsetAttributeNS : function(namespaceURI, qualifiedName, value){\n\t\tvar attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);\n\t\tattr.value = attr.nodeValue = \"\" + value;\n\t\tthis.setAttributeNode(attr)\n\t},\n\tgetAttributeNodeNS : function(namespaceURI, localName){\n\t\treturn this.attributes.getNamedItemNS(namespaceURI, localName);\n\t},\n\n\tgetElementsByTagName : function(tagName){\n\t\treturn new LiveNodeList(this,function(base){\n\t\t\tvar ls = [];\n\t\t\t_visitNode(base,function(node){\n\t\t\t\tif(node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)){\n\t\t\t\t\tls.push(node);\n\t\t\t\t}\n\t\t\t});\n\t\t\treturn ls;\n\t\t});\n\t},\n\tgetElementsByTagNameNS : function(namespaceURI, localName){\n\t\treturn new LiveNodeList(this,function(base){\n\t\t\tvar ls = [];\n\t\t\t_visitNode(base,function(node){\n\t\t\t\tif(node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)){\n\t\t\t\t\tls.push(node);\n\t\t\t\t}\n\t\t\t});\n\t\t\treturn ls;\n\n\t\t});\n\t}\n};\nDocument.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;\nDocument.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;\n\n\n_extends(Element,Node);\nfunction Attr() {\n};\nAttr.prototype.nodeType = ATTRIBUTE_NODE;\n_extends(Attr,Node);\n\n\nfunction CharacterData() {\n};\nCharacterData.prototype = {\n\tdata : '',\n\tsubstringData : function(offset, count) {\n\t\treturn this.data.substring(offset, offset+count);\n\t},\n\tappendData: function(text) {\n\t\ttext = this.data+text;\n\t\tthis.nodeValue = this.data = text;\n\t\tthis.length = text.length;\n\t},\n\tinsertData: function(offset,text) {\n\t\tthis.replaceData(offset,0,text);\n\n\t},\n\tappendChild:function(newChild){\n\t\tthrow new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR])\n\t},\n\tdeleteData: function(offset, count) {\n\t\tthis.replaceData(offset,count,\"\");\n\t},\n\treplaceData: function(offset, count, text) {\n\t\tvar start = this.data.substring(0,offset);\n\t\tvar end = this.data.substring(offset+count);\n\t\ttext = start + text + end;\n\t\tthis.nodeValue = this.data = text;\n\t\tthis.length = text.length;\n\t}\n}\n_extends(CharacterData,Node);\nfunction Text() {\n};\nText.prototype = {\n\tnodeName : \"#text\",\n\tnodeType : TEXT_NODE,\n\tsplitText : function(offset) {\n\t\tvar text = this.data;\n\t\tvar newText = text.substring(offset);\n\t\ttext = text.substring(0, offset);\n\t\tthis.data = this.nodeValue = text;\n\t\tthis.length = text.length;\n\t\tvar newNode = this.ownerDocument.createTextNode(newText);\n\t\tif(this.parentNode){\n\t\t\tthis.parentNode.insertBefore(newNode, this.nextSibling);\n\t\t}\n\t\treturn newNode;\n\t}\n}\n_extends(Text,CharacterData);\nfunction Comment() {\n};\nComment.prototype = {\n\tnodeName : \"#comment\",\n\tnodeType : COMMENT_NODE\n}\n_extends(Comment,CharacterData);\n\nfunction CDATASection() {\n};\nCDATASection.prototype = {\n\tnodeName : \"#cdata-section\",\n\tnodeType : CDATA_SECTION_NODE\n}\n_extends(CDATASection,CharacterData);\n\n\nfunction DocumentType() {\n};\nDocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;\n_extends(DocumentType,Node);\n\nfunction Notation() {\n};\nNotation.prototype.nodeType = NOTATION_NODE;\n_extends(Notation,Node);\n\nfunction Entity() {\n};\nEntity.prototype.nodeType = ENTITY_NODE;\n_extends(Entity,Node);\n\nfunction EntityReference() {\n};\nEntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;\n_extends(EntityReference,Node);\n\nfunction DocumentFragment() {\n};\nDocumentFragment.prototype.nodeName =\t\"#document-fragment\";\nDocumentFragment.prototype.nodeType =\tDOCUMENT_FRAGMENT_NODE;\n_extends(DocumentFragment,Node);\n\n\nfunction ProcessingInstruction() {\n}\nProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;\n_extends(ProcessingInstruction,Node);\nfunction XMLSerializer(){}\nXMLSerializer.prototype.serializeToString = function(node,isHtml,nodeFilter){\n\treturn nodeSerializeToString.call(node,isHtml,nodeFilter);\n}\nNode.prototype.toString = nodeSerializeToString;\nfunction nodeSerializeToString(isHtml,nodeFilter){\n\tvar buf = [];\n\tvar refNode = this.nodeType == 9 && this.documentElement || this;\n\tvar prefix = refNode.prefix;\n\tvar uri = refNode.namespaceURI;\n\n\tif(uri && prefix == null){\n\t\t//console.log(prefix)\n\t\tvar prefix = refNode.lookupPrefix(uri);\n\t\tif(prefix == null){\n\t\t\t//isHTML = true;\n\t\t\tvar visibleNamespaces=[\n\t\t\t{namespace:uri,prefix:null}\n\t\t\t//{namespace:uri,prefix:''}\n\t\t\t]\n\t\t}\n\t}\n\tserializeToString(this,buf,isHtml,nodeFilter,visibleNamespaces);\n\t//console.log('###',this.nodeType,uri,prefix,buf.join(''))\n\treturn buf.join('');\n}\n\nfunction needNamespaceDefine(node, isHTML, visibleNamespaces) {\n\tvar prefix = node.prefix || '';\n\tvar uri = node.namespaceURI;\n\t// According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,\n\t// and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :\n\t// > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.\n\t// in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)\n\t// and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :\n\t// > [...] Furthermore, the attribute value [...] must not be an empty string.\n\t// so serializing empty namespace value like xmlns:ds=\"\" would produce an invalid XML document.\n\tif (!uri) {\n\t\treturn false;\n\t}\n\tif (prefix === \"xml\" && uri === NAMESPACE.XML || uri === NAMESPACE.XMLNS) {\n\t\treturn false;\n\t}\n\n\tvar i = visibleNamespaces.length\n\twhile (i--) {\n\t\tvar ns = visibleNamespaces[i];\n\t\t// get namespace prefix\n\t\tif (ns.prefix === prefix) {\n\t\t\treturn ns.namespace !== uri;\n\t\t}\n\t}\n\treturn true;\n}\n/**\n * Well-formed constraint: No < in Attribute Values\n * > The replacement text of any entity referred to directly or indirectly\n * > in an attribute value must not contain a <.\n * @see https://www.w3.org/TR/xml11/#CleanAttrVals\n * @see https://www.w3.org/TR/xml11/#NT-AttValue\n *\n * Literal whitespace other than space that appear in attribute values\n * are serialized as their entity references, so they will be preserved.\n * (In contrast to whitespace literals in the input which are normalized to spaces)\n * @see https://www.w3.org/TR/xml11/#AVNormalize\n * @see https://w3c.github.io/DOM-Parsing/#serializing-an-element-s-attributes\n */\nfunction addSerializedAttribute(buf, qualifiedName, value) {\n\tbuf.push(' ', qualifiedName, '=\"', value.replace(/[<>&\"\\t\\n\\r]/g, _xmlEncoder), '\"')\n}\n\nfunction serializeToString(node,buf,isHTML,nodeFilter,visibleNamespaces){\n\tif (!visibleNamespaces) {\n\t\tvisibleNamespaces = [];\n\t}\n\n\tif(nodeFilter){\n\t\tnode = nodeFilter(node);\n\t\tif(node){\n\t\t\tif(typeof node == 'string'){\n\t\t\t\tbuf.push(node);\n\t\t\t\treturn;\n\t\t\t}\n\t\t}else{\n\t\t\treturn;\n\t\t}\n\t\t//buf.sort.apply(attrs, attributeSorter);\n\t}\n\n\tswitch(node.nodeType){\n\tcase ELEMENT_NODE:\n\t\tvar attrs = node.attributes;\n\t\tvar len = attrs.length;\n\t\tvar child = node.firstChild;\n\t\tvar nodeName = node.tagName;\n\n\t\tisHTML = NAMESPACE.isHTML(node.namespaceURI) || isHTML\n\n\t\tvar prefixedNodeName = nodeName\n\t\tif (!isHTML && !node.prefix && node.namespaceURI) {\n\t\t\tvar defaultNS\n\t\t\t// lookup current default ns from `xmlns` attribute\n\t\t\tfor (var ai = 0; ai < attrs.length; ai++) {\n\t\t\t\tif (attrs.item(ai).name === 'xmlns') {\n\t\t\t\t\tdefaultNS = attrs.item(ai).value\n\t\t\t\t\tbreak\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (!defaultNS) {\n\t\t\t\t// lookup current default ns in visibleNamespaces\n\t\t\t\tfor (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n\t\t\t\t\tvar namespace = visibleNamespaces[nsi]\n\t\t\t\t\tif (namespace.prefix === '' && namespace.namespace === node.namespaceURI) {\n\t\t\t\t\t\tdefaultNS = namespace.namespace\n\t\t\t\t\t\tbreak\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (defaultNS !== node.namespaceURI) {\n\t\t\t\tfor (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n\t\t\t\t\tvar namespace = visibleNamespaces[nsi]\n\t\t\t\t\tif (namespace.namespace === node.namespaceURI) {\n\t\t\t\t\t\tif (namespace.prefix) {\n\t\t\t\t\t\t\tprefixedNodeName = namespace.prefix + ':' + nodeName\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tbuf.push('<', prefixedNodeName);\n\n\t\tfor(var i=0;i');\n\t\t\t//if is cdata child node\n\t\t\tif(isHTML && /^script$/i.test(nodeName)){\n\t\t\t\twhile(child){\n\t\t\t\t\tif(child.data){\n\t\t\t\t\t\tbuf.push(child.data);\n\t\t\t\t\t}else{\n\t\t\t\t\t\tserializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n\t\t\t\t\t}\n\t\t\t\t\tchild = child.nextSibling;\n\t\t\t\t}\n\t\t\t}else\n\t\t\t{\n\t\t\t\twhile(child){\n\t\t\t\t\tserializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n\t\t\t\t\tchild = child.nextSibling;\n\t\t\t\t}\n\t\t\t}\n\t\t\tbuf.push('');\n\t\t}else{\n\t\t\tbuf.push('/>');\n\t\t}\n\t\t// remove added visible namespaces\n\t\t//visibleNamespaces.length = startVisibleNamespaces;\n\t\treturn;\n\tcase DOCUMENT_NODE:\n\tcase DOCUMENT_FRAGMENT_NODE:\n\t\tvar child = node.firstChild;\n\t\twhile(child){\n\t\t\tserializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n\t\t\tchild = child.nextSibling;\n\t\t}\n\t\treturn;\n\tcase ATTRIBUTE_NODE:\n\t\treturn addSerializedAttribute(buf, node.name, node.value);\n\tcase TEXT_NODE:\n\t\t/**\n\t\t * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,\n\t\t * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.\n\t\t * If they are needed elsewhere, they must be escaped using either numeric character references or the strings\n\t\t * `&` and `<` respectively.\n\t\t * The right angle bracket (>) may be represented using the string \" > \", and must, for compatibility,\n\t\t * be escaped using either `>` or a character reference when it appears in the string `]]>` in content,\n\t\t * when that string is not marking the end of a CDATA section.\n\t\t *\n\t\t * In the content of elements, character data is any string of characters\n\t\t * which does not contain the start-delimiter of any markup\n\t\t * and does not include the CDATA-section-close delimiter, `]]>`.\n\t\t *\n\t\t * @see https://www.w3.org/TR/xml/#NT-CharData\n\t\t * @see https://w3c.github.io/DOM-Parsing/#xml-serializing-a-text-node\n\t\t */\n\t\treturn buf.push(node.data\n\t\t\t.replace(/[<&>]/g,_xmlEncoder)\n\t\t);\n\tcase CDATA_SECTION_NODE:\n\t\treturn buf.push( '');\n\tcase COMMENT_NODE:\n\t\treturn buf.push( \"\");\n\tcase DOCUMENT_TYPE_NODE:\n\t\tvar pubid = node.publicId;\n\t\tvar sysid = node.systemId;\n\t\tbuf.push('');\n\t\t}else if(sysid && sysid!='.'){\n\t\t\tbuf.push(' SYSTEM ', sysid, '>');\n\t\t}else{\n\t\t\tvar sub = node.internalSubset;\n\t\t\tif(sub){\n\t\t\t\tbuf.push(\" [\",sub,\"]\");\n\t\t\t}\n\t\t\tbuf.push(\">\");\n\t\t}\n\t\treturn;\n\tcase PROCESSING_INSTRUCTION_NODE:\n\t\treturn buf.push( \"\");\n\tcase ENTITY_REFERENCE_NODE:\n\t\treturn buf.push( '&',node.nodeName,';');\n\t//case ENTITY_NODE:\n\t//case NOTATION_NODE:\n\tdefault:\n\t\tbuf.push('??',node.nodeName);\n\t}\n}\nfunction importNode(doc,node,deep){\n\tvar node2;\n\tswitch (node.nodeType) {\n\tcase ELEMENT_NODE:\n\t\tnode2 = node.cloneNode(false);\n\t\tnode2.ownerDocument = doc;\n\t\t//var attrs = node2.attributes;\n\t\t//var len = attrs.length;\n\t\t//for(var i=0;i',\n\tlt: '<',\n\tquot: '\"',\n});\n\n/**\n * A map of all entities that are detected in an HTML document.\n * They contain all entries from `XML_ENTITIES`.\n *\n * @see XML_ENTITIES\n * @see DOMParser.parseFromString\n * @see DOMImplementation.prototype.createHTMLDocument\n * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec\n * @see https://html.spec.whatwg.org/entities.json JSON\n * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names\n * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML\n * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)\n * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)\n */\nexports.HTML_ENTITIES = freeze({\n\tAacute: '\\u00C1',\n\taacute: '\\u00E1',\n\tAbreve: '\\u0102',\n\tabreve: '\\u0103',\n\tac: '\\u223E',\n\tacd: '\\u223F',\n\tacE: '\\u223E\\u0333',\n\tAcirc: '\\u00C2',\n\tacirc: '\\u00E2',\n\tacute: '\\u00B4',\n\tAcy: '\\u0410',\n\tacy: '\\u0430',\n\tAElig: '\\u00C6',\n\taelig: '\\u00E6',\n\taf: '\\u2061',\n\tAfr: '\\uD835\\uDD04',\n\tafr: '\\uD835\\uDD1E',\n\tAgrave: '\\u00C0',\n\tagrave: '\\u00E0',\n\talefsym: '\\u2135',\n\taleph: '\\u2135',\n\tAlpha: '\\u0391',\n\talpha: '\\u03B1',\n\tAmacr: '\\u0100',\n\tamacr: '\\u0101',\n\tamalg: '\\u2A3F',\n\tAMP: '\\u0026',\n\tamp: '\\u0026',\n\tAnd: '\\u2A53',\n\tand: '\\u2227',\n\tandand: '\\u2A55',\n\tandd: '\\u2A5C',\n\tandslope: '\\u2A58',\n\tandv: '\\u2A5A',\n\tang: '\\u2220',\n\tange: '\\u29A4',\n\tangle: '\\u2220',\n\tangmsd: '\\u2221',\n\tangmsdaa: '\\u29A8',\n\tangmsdab: '\\u29A9',\n\tangmsdac: '\\u29AA',\n\tangmsdad: '\\u29AB',\n\tangmsdae: '\\u29AC',\n\tangmsdaf: '\\u29AD',\n\tangmsdag: '\\u29AE',\n\tangmsdah: '\\u29AF',\n\tangrt: '\\u221F',\n\tangrtvb: '\\u22BE',\n\tangrtvbd: '\\u299D',\n\tangsph: '\\u2222',\n\tangst: '\\u00C5',\n\tangzarr: '\\u237C',\n\tAogon: '\\u0104',\n\taogon: '\\u0105',\n\tAopf: '\\uD835\\uDD38',\n\taopf: '\\uD835\\uDD52',\n\tap: '\\u2248',\n\tapacir: '\\u2A6F',\n\tapE: '\\u2A70',\n\tape: '\\u224A',\n\tapid: '\\u224B',\n\tapos: '\\u0027',\n\tApplyFunction: '\\u2061',\n\tapprox: '\\u2248',\n\tapproxeq: '\\u224A',\n\tAring: '\\u00C5',\n\taring: '\\u00E5',\n\tAscr: '\\uD835\\uDC9C',\n\tascr: '\\uD835\\uDCB6',\n\tAssign: '\\u2254',\n\tast: '\\u002A',\n\tasymp: '\\u2248',\n\tasympeq: '\\u224D',\n\tAtilde: '\\u00C3',\n\tatilde: '\\u00E3',\n\tAuml: '\\u00C4',\n\tauml: '\\u00E4',\n\tawconint: '\\u2233',\n\tawint: '\\u2A11',\n\tbackcong: '\\u224C',\n\tbackepsilon: '\\u03F6',\n\tbackprime: '\\u2035',\n\tbacksim: '\\u223D',\n\tbacksimeq: '\\u22CD',\n\tBackslash: '\\u2216',\n\tBarv: '\\u2AE7',\n\tbarvee: '\\u22BD',\n\tBarwed: '\\u2306',\n\tbarwed: '\\u2305',\n\tbarwedge: '\\u2305',\n\tbbrk: '\\u23B5',\n\tbbrktbrk: '\\u23B6',\n\tbcong: '\\u224C',\n\tBcy: '\\u0411',\n\tbcy: '\\u0431',\n\tbdquo: '\\u201E',\n\tbecaus: '\\u2235',\n\tBecause: '\\u2235',\n\tbecause: '\\u2235',\n\tbemptyv: '\\u29B0',\n\tbepsi: '\\u03F6',\n\tbernou: '\\u212C',\n\tBernoullis: '\\u212C',\n\tBeta: '\\u0392',\n\tbeta: '\\u03B2',\n\tbeth: '\\u2136',\n\tbetween: '\\u226C',\n\tBfr: '\\uD835\\uDD05',\n\tbfr: '\\uD835\\uDD1F',\n\tbigcap: '\\u22C2',\n\tbigcirc: '\\u25EF',\n\tbigcup: '\\u22C3',\n\tbigodot: '\\u2A00',\n\tbigoplus: '\\u2A01',\n\tbigotimes: '\\u2A02',\n\tbigsqcup: '\\u2A06',\n\tbigstar: '\\u2605',\n\tbigtriangledown: '\\u25BD',\n\tbigtriangleup: '\\u25B3',\n\tbiguplus: '\\u2A04',\n\tbigvee: '\\u22C1',\n\tbigwedge: '\\u22C0',\n\tbkarow: '\\u290D',\n\tblacklozenge: '\\u29EB',\n\tblacksquare: '\\u25AA',\n\tblacktriangle: '\\u25B4',\n\tblacktriangledown: '\\u25BE',\n\tblacktriangleleft: '\\u25C2',\n\tblacktriangleright: '\\u25B8',\n\tblank: '\\u2423',\n\tblk12: '\\u2592',\n\tblk14: '\\u2591',\n\tblk34: '\\u2593',\n\tblock: '\\u2588',\n\tbne: '\\u003D\\u20E5',\n\tbnequiv: '\\u2261\\u20E5',\n\tbNot: '\\u2AED',\n\tbnot: '\\u2310',\n\tBopf: '\\uD835\\uDD39',\n\tbopf: '\\uD835\\uDD53',\n\tbot: '\\u22A5',\n\tbottom: '\\u22A5',\n\tbowtie: '\\u22C8',\n\tboxbox: '\\u29C9',\n\tboxDL: '\\u2557',\n\tboxDl: '\\u2556',\n\tboxdL: '\\u2555',\n\tboxdl: '\\u2510',\n\tboxDR: '\\u2554',\n\tboxDr: '\\u2553',\n\tboxdR: '\\u2552',\n\tboxdr: '\\u250C',\n\tboxH: '\\u2550',\n\tboxh: '\\u2500',\n\tboxHD: '\\u2566',\n\tboxHd: '\\u2564',\n\tboxhD: '\\u2565',\n\tboxhd: '\\u252C',\n\tboxHU: '\\u2569',\n\tboxHu: '\\u2567',\n\tboxhU: '\\u2568',\n\tboxhu: '\\u2534',\n\tboxminus: '\\u229F',\n\tboxplus: '\\u229E',\n\tboxtimes: '\\u22A0',\n\tboxUL: '\\u255D',\n\tboxUl: '\\u255C',\n\tboxuL: '\\u255B',\n\tboxul: '\\u2518',\n\tboxUR: '\\u255A',\n\tboxUr: '\\u2559',\n\tboxuR: '\\u2558',\n\tboxur: '\\u2514',\n\tboxV: '\\u2551',\n\tboxv: '\\u2502',\n\tboxVH: '\\u256C',\n\tboxVh: '\\u256B',\n\tboxvH: '\\u256A',\n\tboxvh: '\\u253C',\n\tboxVL: '\\u2563',\n\tboxVl: '\\u2562',\n\tboxvL: '\\u2561',\n\tboxvl: '\\u2524',\n\tboxVR: '\\u2560',\n\tboxVr: '\\u255F',\n\tboxvR: '\\u255E',\n\tboxvr: '\\u251C',\n\tbprime: '\\u2035',\n\tBreve: '\\u02D8',\n\tbreve: '\\u02D8',\n\tbrvbar: '\\u00A6',\n\tBscr: '\\u212C',\n\tbscr: '\\uD835\\uDCB7',\n\tbsemi: '\\u204F',\n\tbsim: '\\u223D',\n\tbsime: '\\u22CD',\n\tbsol: '\\u005C',\n\tbsolb: '\\u29C5',\n\tbsolhsub: '\\u27C8',\n\tbull: '\\u2022',\n\tbullet: '\\u2022',\n\tbump: '\\u224E',\n\tbumpE: '\\u2AAE',\n\tbumpe: '\\u224F',\n\tBumpeq: '\\u224E',\n\tbumpeq: '\\u224F',\n\tCacute: '\\u0106',\n\tcacute: '\\u0107',\n\tCap: '\\u22D2',\n\tcap: '\\u2229',\n\tcapand: '\\u2A44',\n\tcapbrcup: '\\u2A49',\n\tcapcap: '\\u2A4B',\n\tcapcup: '\\u2A47',\n\tcapdot: '\\u2A40',\n\tCapitalDifferentialD: '\\u2145',\n\tcaps: '\\u2229\\uFE00',\n\tcaret: '\\u2041',\n\tcaron: '\\u02C7',\n\tCayleys: '\\u212D',\n\tccaps: '\\u2A4D',\n\tCcaron: '\\u010C',\n\tccaron: '\\u010D',\n\tCcedil: '\\u00C7',\n\tccedil: '\\u00E7',\n\tCcirc: '\\u0108',\n\tccirc: '\\u0109',\n\tCconint: '\\u2230',\n\tccups: '\\u2A4C',\n\tccupssm: '\\u2A50',\n\tCdot: '\\u010A',\n\tcdot: '\\u010B',\n\tcedil: '\\u00B8',\n\tCedilla: '\\u00B8',\n\tcemptyv: '\\u29B2',\n\tcent: '\\u00A2',\n\tCenterDot: '\\u00B7',\n\tcenterdot: '\\u00B7',\n\tCfr: '\\u212D',\n\tcfr: '\\uD835\\uDD20',\n\tCHcy: '\\u0427',\n\tchcy: '\\u0447',\n\tcheck: '\\u2713',\n\tcheckmark: '\\u2713',\n\tChi: '\\u03A7',\n\tchi: '\\u03C7',\n\tcir: '\\u25CB',\n\tcirc: '\\u02C6',\n\tcirceq: '\\u2257',\n\tcirclearrowleft: '\\u21BA',\n\tcirclearrowright: '\\u21BB',\n\tcircledast: '\\u229B',\n\tcircledcirc: '\\u229A',\n\tcircleddash: '\\u229D',\n\tCircleDot: '\\u2299',\n\tcircledR: '\\u00AE',\n\tcircledS: '\\u24C8',\n\tCircleMinus: '\\u2296',\n\tCirclePlus: '\\u2295',\n\tCircleTimes: '\\u2297',\n\tcirE: '\\u29C3',\n\tcire: '\\u2257',\n\tcirfnint: '\\u2A10',\n\tcirmid: '\\u2AEF',\n\tcirscir: '\\u29C2',\n\tClockwiseContourIntegral: '\\u2232',\n\tCloseCurlyDoubleQuote: '\\u201D',\n\tCloseCurlyQuote: '\\u2019',\n\tclubs: '\\u2663',\n\tclubsuit: '\\u2663',\n\tColon: '\\u2237',\n\tcolon: '\\u003A',\n\tColone: '\\u2A74',\n\tcolone: '\\u2254',\n\tcoloneq: '\\u2254',\n\tcomma: '\\u002C',\n\tcommat: '\\u0040',\n\tcomp: '\\u2201',\n\tcompfn: '\\u2218',\n\tcomplement: '\\u2201',\n\tcomplexes: '\\u2102',\n\tcong: '\\u2245',\n\tcongdot: '\\u2A6D',\n\tCongruent: '\\u2261',\n\tConint: '\\u222F',\n\tconint: '\\u222E',\n\tContourIntegral: '\\u222E',\n\tCopf: '\\u2102',\n\tcopf: '\\uD835\\uDD54',\n\tcoprod: '\\u2210',\n\tCoproduct: '\\u2210',\n\tCOPY: '\\u00A9',\n\tcopy: '\\u00A9',\n\tcopysr: '\\u2117',\n\tCounterClockwiseContourIntegral: '\\u2233',\n\tcrarr: '\\u21B5',\n\tCross: '\\u2A2F',\n\tcross: '\\u2717',\n\tCscr: '\\uD835\\uDC9E',\n\tcscr: '\\uD835\\uDCB8',\n\tcsub: '\\u2ACF',\n\tcsube: '\\u2AD1',\n\tcsup: '\\u2AD0',\n\tcsupe: '\\u2AD2',\n\tctdot: '\\u22EF',\n\tcudarrl: '\\u2938',\n\tcudarrr: '\\u2935',\n\tcuepr: '\\u22DE',\n\tcuesc: '\\u22DF',\n\tcularr: '\\u21B6',\n\tcularrp: '\\u293D',\n\tCup: '\\u22D3',\n\tcup: '\\u222A',\n\tcupbrcap: '\\u2A48',\n\tCupCap: '\\u224D',\n\tcupcap: '\\u2A46',\n\tcupcup: '\\u2A4A',\n\tcupdot: '\\u228D',\n\tcupor: '\\u2A45',\n\tcups: '\\u222A\\uFE00',\n\tcurarr: '\\u21B7',\n\tcurarrm: '\\u293C',\n\tcurlyeqprec: '\\u22DE',\n\tcurlyeqsucc: '\\u22DF',\n\tcurlyvee: '\\u22CE',\n\tcurlywedge: '\\u22CF',\n\tcurren: '\\u00A4',\n\tcurvearrowleft: '\\u21B6',\n\tcurvearrowright: '\\u21B7',\n\tcuvee: '\\u22CE',\n\tcuwed: '\\u22CF',\n\tcwconint: '\\u2232',\n\tcwint: '\\u2231',\n\tcylcty: '\\u232D',\n\tDagger: '\\u2021',\n\tdagger: '\\u2020',\n\tdaleth: '\\u2138',\n\tDarr: '\\u21A1',\n\tdArr: '\\u21D3',\n\tdarr: '\\u2193',\n\tdash: '\\u2010',\n\tDashv: '\\u2AE4',\n\tdashv: '\\u22A3',\n\tdbkarow: '\\u290F',\n\tdblac: '\\u02DD',\n\tDcaron: '\\u010E',\n\tdcaron: '\\u010F',\n\tDcy: '\\u0414',\n\tdcy: '\\u0434',\n\tDD: '\\u2145',\n\tdd: '\\u2146',\n\tddagger: '\\u2021',\n\tddarr: '\\u21CA',\n\tDDotrahd: '\\u2911',\n\tddotseq: '\\u2A77',\n\tdeg: '\\u00B0',\n\tDel: '\\u2207',\n\tDelta: '\\u0394',\n\tdelta: '\\u03B4',\n\tdemptyv: '\\u29B1',\n\tdfisht: '\\u297F',\n\tDfr: '\\uD835\\uDD07',\n\tdfr: '\\uD835\\uDD21',\n\tdHar: '\\u2965',\n\tdharl: '\\u21C3',\n\tdharr: '\\u21C2',\n\tDiacriticalAcute: '\\u00B4',\n\tDiacriticalDot: '\\u02D9',\n\tDiacriticalDoubleAcute: '\\u02DD',\n\tDiacriticalGrave: '\\u0060',\n\tDiacriticalTilde: '\\u02DC',\n\tdiam: '\\u22C4',\n\tDiamond: '\\u22C4',\n\tdiamond: '\\u22C4',\n\tdiamondsuit: '\\u2666',\n\tdiams: '\\u2666',\n\tdie: '\\u00A8',\n\tDifferentialD: '\\u2146',\n\tdigamma: '\\u03DD',\n\tdisin: '\\u22F2',\n\tdiv: '\\u00F7',\n\tdivide: '\\u00F7',\n\tdivideontimes: '\\u22C7',\n\tdivonx: '\\u22C7',\n\tDJcy: '\\u0402',\n\tdjcy: '\\u0452',\n\tdlcorn: '\\u231E',\n\tdlcrop: '\\u230D',\n\tdollar: '\\u0024',\n\tDopf: '\\uD835\\uDD3B',\n\tdopf: '\\uD835\\uDD55',\n\tDot: '\\u00A8',\n\tdot: '\\u02D9',\n\tDotDot: '\\u20DC',\n\tdoteq: '\\u2250',\n\tdoteqdot: '\\u2251',\n\tDotEqual: '\\u2250',\n\tdotminus: '\\u2238',\n\tdotplus: '\\u2214',\n\tdotsquare: '\\u22A1',\n\tdoublebarwedge: '\\u2306',\n\tDoubleContourIntegral: '\\u222F',\n\tDoubleDot: '\\u00A8',\n\tDoubleDownArrow: '\\u21D3',\n\tDoubleLeftArrow: '\\u21D0',\n\tDoubleLeftRightArrow: '\\u21D4',\n\tDoubleLeftTee: '\\u2AE4',\n\tDoubleLongLeftArrow: '\\u27F8',\n\tDoubleLongLeftRightArrow: '\\u27FA',\n\tDoubleLongRightArrow: '\\u27F9',\n\tDoubleRightArrow: '\\u21D2',\n\tDoubleRightTee: '\\u22A8',\n\tDoubleUpArrow: '\\u21D1',\n\tDoubleUpDownArrow: '\\u21D5',\n\tDoubleVerticalBar: '\\u2225',\n\tDownArrow: '\\u2193',\n\tDownarrow: '\\u21D3',\n\tdownarrow: '\\u2193',\n\tDownArrowBar: '\\u2913',\n\tDownArrowUpArrow: '\\u21F5',\n\tDownBreve: '\\u0311',\n\tdowndownarrows: '\\u21CA',\n\tdownharpoonleft: '\\u21C3',\n\tdownharpoonright: '\\u21C2',\n\tDownLeftRightVector: '\\u2950',\n\tDownLeftTeeVector: '\\u295E',\n\tDownLeftVector: '\\u21BD',\n\tDownLeftVectorBar: '\\u2956',\n\tDownRightTeeVector: '\\u295F',\n\tDownRightVector: '\\u21C1',\n\tDownRightVectorBar: '\\u2957',\n\tDownTee: '\\u22A4',\n\tDownTeeArrow: '\\u21A7',\n\tdrbkarow: '\\u2910',\n\tdrcorn: '\\u231F',\n\tdrcrop: '\\u230C',\n\tDscr: '\\uD835\\uDC9F',\n\tdscr: '\\uD835\\uDCB9',\n\tDScy: '\\u0405',\n\tdscy: '\\u0455',\n\tdsol: '\\u29F6',\n\tDstrok: '\\u0110',\n\tdstrok: '\\u0111',\n\tdtdot: '\\u22F1',\n\tdtri: '\\u25BF',\n\tdtrif: '\\u25BE',\n\tduarr: '\\u21F5',\n\tduhar: '\\u296F',\n\tdwangle: '\\u29A6',\n\tDZcy: '\\u040F',\n\tdzcy: '\\u045F',\n\tdzigrarr: '\\u27FF',\n\tEacute: '\\u00C9',\n\teacute: '\\u00E9',\n\teaster: '\\u2A6E',\n\tEcaron: '\\u011A',\n\tecaron: '\\u011B',\n\tecir: '\\u2256',\n\tEcirc: '\\u00CA',\n\tecirc: '\\u00EA',\n\tecolon: '\\u2255',\n\tEcy: '\\u042D',\n\tecy: '\\u044D',\n\teDDot: '\\u2A77',\n\tEdot: '\\u0116',\n\teDot: '\\u2251',\n\tedot: '\\u0117',\n\tee: '\\u2147',\n\tefDot: '\\u2252',\n\tEfr: '\\uD835\\uDD08',\n\tefr: '\\uD835\\uDD22',\n\teg: '\\u2A9A',\n\tEgrave: '\\u00C8',\n\tegrave: '\\u00E8',\n\tegs: '\\u2A96',\n\tegsdot: '\\u2A98',\n\tel: '\\u2A99',\n\tElement: '\\u2208',\n\telinters: '\\u23E7',\n\tell: '\\u2113',\n\tels: '\\u2A95',\n\telsdot: '\\u2A97',\n\tEmacr: '\\u0112',\n\temacr: '\\u0113',\n\tempty: '\\u2205',\n\temptyset: '\\u2205',\n\tEmptySmallSquare: '\\u25FB',\n\temptyv: '\\u2205',\n\tEmptyVerySmallSquare: '\\u25AB',\n\temsp: '\\u2003',\n\temsp13: '\\u2004',\n\temsp14: '\\u2005',\n\tENG: '\\u014A',\n\teng: '\\u014B',\n\tensp: '\\u2002',\n\tEogon: '\\u0118',\n\teogon: '\\u0119',\n\tEopf: '\\uD835\\uDD3C',\n\teopf: '\\uD835\\uDD56',\n\tepar: '\\u22D5',\n\teparsl: '\\u29E3',\n\teplus: '\\u2A71',\n\tepsi: '\\u03B5',\n\tEpsilon: '\\u0395',\n\tepsilon: '\\u03B5',\n\tepsiv: '\\u03F5',\n\teqcirc: '\\u2256',\n\teqcolon: '\\u2255',\n\teqsim: '\\u2242',\n\teqslantgtr: '\\u2A96',\n\teqslantless: '\\u2A95',\n\tEqual: '\\u2A75',\n\tequals: '\\u003D',\n\tEqualTilde: '\\u2242',\n\tequest: '\\u225F',\n\tEquilibrium: '\\u21CC',\n\tequiv: '\\u2261',\n\tequivDD: '\\u2A78',\n\teqvparsl: '\\u29E5',\n\terarr: '\\u2971',\n\terDot: '\\u2253',\n\tEscr: '\\u2130',\n\tescr: '\\u212F',\n\tesdot: '\\u2250',\n\tEsim: '\\u2A73',\n\tesim: '\\u2242',\n\tEta: '\\u0397',\n\teta: '\\u03B7',\n\tETH: '\\u00D0',\n\teth: '\\u00F0',\n\tEuml: '\\u00CB',\n\teuml: '\\u00EB',\n\teuro: '\\u20AC',\n\texcl: '\\u0021',\n\texist: '\\u2203',\n\tExists: '\\u2203',\n\texpectation: '\\u2130',\n\tExponentialE: '\\u2147',\n\texponentiale: '\\u2147',\n\tfallingdotseq: '\\u2252',\n\tFcy: '\\u0424',\n\tfcy: '\\u0444',\n\tfemale: '\\u2640',\n\tffilig: '\\uFB03',\n\tfflig: '\\uFB00',\n\tffllig: '\\uFB04',\n\tFfr: '\\uD835\\uDD09',\n\tffr: '\\uD835\\uDD23',\n\tfilig: '\\uFB01',\n\tFilledSmallSquare: '\\u25FC',\n\tFilledVerySmallSquare: '\\u25AA',\n\tfjlig: '\\u0066\\u006A',\n\tflat: '\\u266D',\n\tfllig: '\\uFB02',\n\tfltns: '\\u25B1',\n\tfnof: '\\u0192',\n\tFopf: '\\uD835\\uDD3D',\n\tfopf: '\\uD835\\uDD57',\n\tForAll: '\\u2200',\n\tforall: '\\u2200',\n\tfork: '\\u22D4',\n\tforkv: '\\u2AD9',\n\tFouriertrf: '\\u2131',\n\tfpartint: '\\u2A0D',\n\tfrac12: '\\u00BD',\n\tfrac13: '\\u2153',\n\tfrac14: '\\u00BC',\n\tfrac15: '\\u2155',\n\tfrac16: '\\u2159',\n\tfrac18: '\\u215B',\n\tfrac23: '\\u2154',\n\tfrac25: '\\u2156',\n\tfrac34: '\\u00BE',\n\tfrac35: '\\u2157',\n\tfrac38: '\\u215C',\n\tfrac45: '\\u2158',\n\tfrac56: '\\u215A',\n\tfrac58: '\\u215D',\n\tfrac78: '\\u215E',\n\tfrasl: '\\u2044',\n\tfrown: '\\u2322',\n\tFscr: '\\u2131',\n\tfscr: '\\uD835\\uDCBB',\n\tgacute: '\\u01F5',\n\tGamma: '\\u0393',\n\tgamma: '\\u03B3',\n\tGammad: '\\u03DC',\n\tgammad: '\\u03DD',\n\tgap: '\\u2A86',\n\tGbreve: '\\u011E',\n\tgbreve: '\\u011F',\n\tGcedil: '\\u0122',\n\tGcirc: '\\u011C',\n\tgcirc: '\\u011D',\n\tGcy: '\\u0413',\n\tgcy: '\\u0433',\n\tGdot: '\\u0120',\n\tgdot: '\\u0121',\n\tgE: '\\u2267',\n\tge: '\\u2265',\n\tgEl: '\\u2A8C',\n\tgel: '\\u22DB',\n\tgeq: '\\u2265',\n\tgeqq: '\\u2267',\n\tgeqslant: '\\u2A7E',\n\tges: '\\u2A7E',\n\tgescc: '\\u2AA9',\n\tgesdot: '\\u2A80',\n\tgesdoto: '\\u2A82',\n\tgesdotol: '\\u2A84',\n\tgesl: '\\u22DB\\uFE00',\n\tgesles: '\\u2A94',\n\tGfr: '\\uD835\\uDD0A',\n\tgfr: '\\uD835\\uDD24',\n\tGg: '\\u22D9',\n\tgg: '\\u226B',\n\tggg: '\\u22D9',\n\tgimel: '\\u2137',\n\tGJcy: '\\u0403',\n\tgjcy: '\\u0453',\n\tgl: '\\u2277',\n\tgla: '\\u2AA5',\n\tglE: '\\u2A92',\n\tglj: '\\u2AA4',\n\tgnap: '\\u2A8A',\n\tgnapprox: '\\u2A8A',\n\tgnE: '\\u2269',\n\tgne: '\\u2A88',\n\tgneq: '\\u2A88',\n\tgneqq: '\\u2269',\n\tgnsim: '\\u22E7',\n\tGopf: '\\uD835\\uDD3E',\n\tgopf: '\\uD835\\uDD58',\n\tgrave: '\\u0060',\n\tGreaterEqual: '\\u2265',\n\tGreaterEqualLess: '\\u22DB',\n\tGreaterFullEqual: '\\u2267',\n\tGreaterGreater: '\\u2AA2',\n\tGreaterLess: '\\u2277',\n\tGreaterSlantEqual: '\\u2A7E',\n\tGreaterTilde: '\\u2273',\n\tGscr: '\\uD835\\uDCA2',\n\tgscr: '\\u210A',\n\tgsim: '\\u2273',\n\tgsime: '\\u2A8E',\n\tgsiml: '\\u2A90',\n\tGt: '\\u226B',\n\tGT: '\\u003E',\n\tgt: '\\u003E',\n\tgtcc: '\\u2AA7',\n\tgtcir: '\\u2A7A',\n\tgtdot: '\\u22D7',\n\tgtlPar: '\\u2995',\n\tgtquest: '\\u2A7C',\n\tgtrapprox: '\\u2A86',\n\tgtrarr: '\\u2978',\n\tgtrdot: '\\u22D7',\n\tgtreqless: '\\u22DB',\n\tgtreqqless: '\\u2A8C',\n\tgtrless: '\\u2277',\n\tgtrsim: '\\u2273',\n\tgvertneqq: '\\u2269\\uFE00',\n\tgvnE: '\\u2269\\uFE00',\n\tHacek: '\\u02C7',\n\thairsp: '\\u200A',\n\thalf: '\\u00BD',\n\thamilt: '\\u210B',\n\tHARDcy: '\\u042A',\n\thardcy: '\\u044A',\n\thArr: '\\u21D4',\n\tharr: '\\u2194',\n\tharrcir: '\\u2948',\n\tharrw: '\\u21AD',\n\tHat: '\\u005E',\n\thbar: '\\u210F',\n\tHcirc: '\\u0124',\n\thcirc: '\\u0125',\n\thearts: '\\u2665',\n\theartsuit: '\\u2665',\n\thellip: '\\u2026',\n\thercon: '\\u22B9',\n\tHfr: '\\u210C',\n\thfr: '\\uD835\\uDD25',\n\tHilbertSpace: '\\u210B',\n\thksearow: '\\u2925',\n\thkswarow: '\\u2926',\n\thoarr: '\\u21FF',\n\thomtht: '\\u223B',\n\thookleftarrow: '\\u21A9',\n\thookrightarrow: '\\u21AA',\n\tHopf: '\\u210D',\n\thopf: '\\uD835\\uDD59',\n\thorbar: '\\u2015',\n\tHorizontalLine: '\\u2500',\n\tHscr: '\\u210B',\n\thscr: '\\uD835\\uDCBD',\n\thslash: '\\u210F',\n\tHstrok: '\\u0126',\n\thstrok: '\\u0127',\n\tHumpDownHump: '\\u224E',\n\tHumpEqual: '\\u224F',\n\thybull: '\\u2043',\n\thyphen: '\\u2010',\n\tIacute: '\\u00CD',\n\tiacute: '\\u00ED',\n\tic: '\\u2063',\n\tIcirc: '\\u00CE',\n\ticirc: '\\u00EE',\n\tIcy: '\\u0418',\n\ticy: '\\u0438',\n\tIdot: '\\u0130',\n\tIEcy: '\\u0415',\n\tiecy: '\\u0435',\n\tiexcl: '\\u00A1',\n\tiff: '\\u21D4',\n\tIfr: '\\u2111',\n\tifr: '\\uD835\\uDD26',\n\tIgrave: '\\u00CC',\n\tigrave: '\\u00EC',\n\tii: '\\u2148',\n\tiiiint: '\\u2A0C',\n\tiiint: '\\u222D',\n\tiinfin: '\\u29DC',\n\tiiota: '\\u2129',\n\tIJlig: '\\u0132',\n\tijlig: '\\u0133',\n\tIm: '\\u2111',\n\tImacr: '\\u012A',\n\timacr: '\\u012B',\n\timage: '\\u2111',\n\tImaginaryI: '\\u2148',\n\timagline: '\\u2110',\n\timagpart: '\\u2111',\n\timath: '\\u0131',\n\timof: '\\u22B7',\n\timped: '\\u01B5',\n\tImplies: '\\u21D2',\n\tin: '\\u2208',\n\tincare: '\\u2105',\n\tinfin: '\\u221E',\n\tinfintie: '\\u29DD',\n\tinodot: '\\u0131',\n\tInt: '\\u222C',\n\tint: '\\u222B',\n\tintcal: '\\u22BA',\n\tintegers: '\\u2124',\n\tIntegral: '\\u222B',\n\tintercal: '\\u22BA',\n\tIntersection: '\\u22C2',\n\tintlarhk: '\\u2A17',\n\tintprod: '\\u2A3C',\n\tInvisibleComma: '\\u2063',\n\tInvisibleTimes: '\\u2062',\n\tIOcy: '\\u0401',\n\tiocy: '\\u0451',\n\tIogon: '\\u012E',\n\tiogon: '\\u012F',\n\tIopf: '\\uD835\\uDD40',\n\tiopf: '\\uD835\\uDD5A',\n\tIota: '\\u0399',\n\tiota: '\\u03B9',\n\tiprod: '\\u2A3C',\n\tiquest: '\\u00BF',\n\tIscr: '\\u2110',\n\tiscr: '\\uD835\\uDCBE',\n\tisin: '\\u2208',\n\tisindot: '\\u22F5',\n\tisinE: '\\u22F9',\n\tisins: '\\u22F4',\n\tisinsv: '\\u22F3',\n\tisinv: '\\u2208',\n\tit: '\\u2062',\n\tItilde: '\\u0128',\n\titilde: '\\u0129',\n\tIukcy: '\\u0406',\n\tiukcy: '\\u0456',\n\tIuml: '\\u00CF',\n\tiuml: '\\u00EF',\n\tJcirc: '\\u0134',\n\tjcirc: '\\u0135',\n\tJcy: '\\u0419',\n\tjcy: '\\u0439',\n\tJfr: '\\uD835\\uDD0D',\n\tjfr: '\\uD835\\uDD27',\n\tjmath: '\\u0237',\n\tJopf: '\\uD835\\uDD41',\n\tjopf: '\\uD835\\uDD5B',\n\tJscr: '\\uD835\\uDCA5',\n\tjscr: '\\uD835\\uDCBF',\n\tJsercy: '\\u0408',\n\tjsercy: '\\u0458',\n\tJukcy: '\\u0404',\n\tjukcy: '\\u0454',\n\tKappa: '\\u039A',\n\tkappa: '\\u03BA',\n\tkappav: '\\u03F0',\n\tKcedil: '\\u0136',\n\tkcedil: '\\u0137',\n\tKcy: '\\u041A',\n\tkcy: '\\u043A',\n\tKfr: '\\uD835\\uDD0E',\n\tkfr: '\\uD835\\uDD28',\n\tkgreen: '\\u0138',\n\tKHcy: '\\u0425',\n\tkhcy: '\\u0445',\n\tKJcy: '\\u040C',\n\tkjcy: '\\u045C',\n\tKopf: '\\uD835\\uDD42',\n\tkopf: '\\uD835\\uDD5C',\n\tKscr: '\\uD835\\uDCA6',\n\tkscr: '\\uD835\\uDCC0',\n\tlAarr: '\\u21DA',\n\tLacute: '\\u0139',\n\tlacute: '\\u013A',\n\tlaemptyv: '\\u29B4',\n\tlagran: '\\u2112',\n\tLambda: '\\u039B',\n\tlambda: '\\u03BB',\n\tLang: '\\u27EA',\n\tlang: '\\u27E8',\n\tlangd: '\\u2991',\n\tlangle: '\\u27E8',\n\tlap: '\\u2A85',\n\tLaplacetrf: '\\u2112',\n\tlaquo: '\\u00AB',\n\tLarr: '\\u219E',\n\tlArr: '\\u21D0',\n\tlarr: '\\u2190',\n\tlarrb: '\\u21E4',\n\tlarrbfs: '\\u291F',\n\tlarrfs: '\\u291D',\n\tlarrhk: '\\u21A9',\n\tlarrlp: '\\u21AB',\n\tlarrpl: '\\u2939',\n\tlarrsim: '\\u2973',\n\tlarrtl: '\\u21A2',\n\tlat: '\\u2AAB',\n\tlAtail: '\\u291B',\n\tlatail: '\\u2919',\n\tlate: '\\u2AAD',\n\tlates: '\\u2AAD\\uFE00',\n\tlBarr: '\\u290E',\n\tlbarr: '\\u290C',\n\tlbbrk: '\\u2772',\n\tlbrace: '\\u007B',\n\tlbrack: '\\u005B',\n\tlbrke: '\\u298B',\n\tlbrksld: '\\u298F',\n\tlbrkslu: '\\u298D',\n\tLcaron: '\\u013D',\n\tlcaron: '\\u013E',\n\tLcedil: '\\u013B',\n\tlcedil: '\\u013C',\n\tlceil: '\\u2308',\n\tlcub: '\\u007B',\n\tLcy: '\\u041B',\n\tlcy: '\\u043B',\n\tldca: '\\u2936',\n\tldquo: '\\u201C',\n\tldquor: '\\u201E',\n\tldrdhar: '\\u2967',\n\tldrushar: '\\u294B',\n\tldsh: '\\u21B2',\n\tlE: '\\u2266',\n\tle: '\\u2264',\n\tLeftAngleBracket: '\\u27E8',\n\tLeftArrow: '\\u2190',\n\tLeftarrow: '\\u21D0',\n\tleftarrow: '\\u2190',\n\tLeftArrowBar: '\\u21E4',\n\tLeftArrowRightArrow: '\\u21C6',\n\tleftarrowtail: '\\u21A2',\n\tLeftCeiling: '\\u2308',\n\tLeftDoubleBracket: '\\u27E6',\n\tLeftDownTeeVector: '\\u2961',\n\tLeftDownVector: '\\u21C3',\n\tLeftDownVectorBar: '\\u2959',\n\tLeftFloor: '\\u230A',\n\tleftharpoondown: '\\u21BD',\n\tleftharpoonup: '\\u21BC',\n\tleftleftarrows: '\\u21C7',\n\tLeftRightArrow: '\\u2194',\n\tLeftrightarrow: '\\u21D4',\n\tleftrightarrow: '\\u2194',\n\tleftrightarrows: '\\u21C6',\n\tleftrightharpoons: '\\u21CB',\n\tleftrightsquigarrow: '\\u21AD',\n\tLeftRightVector: '\\u294E',\n\tLeftTee: '\\u22A3',\n\tLeftTeeArrow: '\\u21A4',\n\tLeftTeeVector: '\\u295A',\n\tleftthreetimes: '\\u22CB',\n\tLeftTriangle: '\\u22B2',\n\tLeftTriangleBar: '\\u29CF',\n\tLeftTriangleEqual: '\\u22B4',\n\tLeftUpDownVector: '\\u2951',\n\tLeftUpTeeVector: '\\u2960',\n\tLeftUpVector: '\\u21BF',\n\tLeftUpVectorBar: '\\u2958',\n\tLeftVector: '\\u21BC',\n\tLeftVectorBar: '\\u2952',\n\tlEg: '\\u2A8B',\n\tleg: '\\u22DA',\n\tleq: '\\u2264',\n\tleqq: '\\u2266',\n\tleqslant: '\\u2A7D',\n\tles: '\\u2A7D',\n\tlescc: '\\u2AA8',\n\tlesdot: '\\u2A7F',\n\tlesdoto: '\\u2A81',\n\tlesdotor: '\\u2A83',\n\tlesg: '\\u22DA\\uFE00',\n\tlesges: '\\u2A93',\n\tlessapprox: '\\u2A85',\n\tlessdot: '\\u22D6',\n\tlesseqgtr: '\\u22DA',\n\tlesseqqgtr: '\\u2A8B',\n\tLessEqualGreater: '\\u22DA',\n\tLessFullEqual: '\\u2266',\n\tLessGreater: '\\u2276',\n\tlessgtr: '\\u2276',\n\tLessLess: '\\u2AA1',\n\tlesssim: '\\u2272',\n\tLessSlantEqual: '\\u2A7D',\n\tLessTilde: '\\u2272',\n\tlfisht: '\\u297C',\n\tlfloor: '\\u230A',\n\tLfr: '\\uD835\\uDD0F',\n\tlfr: '\\uD835\\uDD29',\n\tlg: '\\u2276',\n\tlgE: '\\u2A91',\n\tlHar: '\\u2962',\n\tlhard: '\\u21BD',\n\tlharu: '\\u21BC',\n\tlharul: '\\u296A',\n\tlhblk: '\\u2584',\n\tLJcy: '\\u0409',\n\tljcy: '\\u0459',\n\tLl: '\\u22D8',\n\tll: '\\u226A',\n\tllarr: '\\u21C7',\n\tllcorner: '\\u231E',\n\tLleftarrow: '\\u21DA',\n\tllhard: '\\u296B',\n\tlltri: '\\u25FA',\n\tLmidot: '\\u013F',\n\tlmidot: '\\u0140',\n\tlmoust: '\\u23B0',\n\tlmoustache: '\\u23B0',\n\tlnap: '\\u2A89',\n\tlnapprox: '\\u2A89',\n\tlnE: '\\u2268',\n\tlne: '\\u2A87',\n\tlneq: '\\u2A87',\n\tlneqq: '\\u2268',\n\tlnsim: '\\u22E6',\n\tloang: '\\u27EC',\n\tloarr: '\\u21FD',\n\tlobrk: '\\u27E6',\n\tLongLeftArrow: '\\u27F5',\n\tLongleftarrow: '\\u27F8',\n\tlongleftarrow: '\\u27F5',\n\tLongLeftRightArrow: '\\u27F7',\n\tLongleftrightarrow: '\\u27FA',\n\tlongleftrightarrow: '\\u27F7',\n\tlongmapsto: '\\u27FC',\n\tLongRightArrow: '\\u27F6',\n\tLongrightarrow: '\\u27F9',\n\tlongrightarrow: '\\u27F6',\n\tlooparrowleft: '\\u21AB',\n\tlooparrowright: '\\u21AC',\n\tlopar: '\\u2985',\n\tLopf: '\\uD835\\uDD43',\n\tlopf: '\\uD835\\uDD5D',\n\tloplus: '\\u2A2D',\n\tlotimes: '\\u2A34',\n\tlowast: '\\u2217',\n\tlowbar: '\\u005F',\n\tLowerLeftArrow: '\\u2199',\n\tLowerRightArrow: '\\u2198',\n\tloz: '\\u25CA',\n\tlozenge: '\\u25CA',\n\tlozf: '\\u29EB',\n\tlpar: '\\u0028',\n\tlparlt: '\\u2993',\n\tlrarr: '\\u21C6',\n\tlrcorner: '\\u231F',\n\tlrhar: '\\u21CB',\n\tlrhard: '\\u296D',\n\tlrm: '\\u200E',\n\tlrtri: '\\u22BF',\n\tlsaquo: '\\u2039',\n\tLscr: '\\u2112',\n\tlscr: '\\uD835\\uDCC1',\n\tLsh: '\\u21B0',\n\tlsh: '\\u21B0',\n\tlsim: '\\u2272',\n\tlsime: '\\u2A8D',\n\tlsimg: '\\u2A8F',\n\tlsqb: '\\u005B',\n\tlsquo: '\\u2018',\n\tlsquor: '\\u201A',\n\tLstrok: '\\u0141',\n\tlstrok: '\\u0142',\n\tLt: '\\u226A',\n\tLT: '\\u003C',\n\tlt: '\\u003C',\n\tltcc: '\\u2AA6',\n\tltcir: '\\u2A79',\n\tltdot: '\\u22D6',\n\tlthree: '\\u22CB',\n\tltimes: '\\u22C9',\n\tltlarr: '\\u2976',\n\tltquest: '\\u2A7B',\n\tltri: '\\u25C3',\n\tltrie: '\\u22B4',\n\tltrif: '\\u25C2',\n\tltrPar: '\\u2996',\n\tlurdshar: '\\u294A',\n\tluruhar: '\\u2966',\n\tlvertneqq: '\\u2268\\uFE00',\n\tlvnE: '\\u2268\\uFE00',\n\tmacr: '\\u00AF',\n\tmale: '\\u2642',\n\tmalt: '\\u2720',\n\tmaltese: '\\u2720',\n\tMap: '\\u2905',\n\tmap: '\\u21A6',\n\tmapsto: '\\u21A6',\n\tmapstodown: '\\u21A7',\n\tmapstoleft: '\\u21A4',\n\tmapstoup: '\\u21A5',\n\tmarker: '\\u25AE',\n\tmcomma: '\\u2A29',\n\tMcy: '\\u041C',\n\tmcy: '\\u043C',\n\tmdash: '\\u2014',\n\tmDDot: '\\u223A',\n\tmeasuredangle: '\\u2221',\n\tMediumSpace: '\\u205F',\n\tMellintrf: '\\u2133',\n\tMfr: '\\uD835\\uDD10',\n\tmfr: '\\uD835\\uDD2A',\n\tmho: '\\u2127',\n\tmicro: '\\u00B5',\n\tmid: '\\u2223',\n\tmidast: '\\u002A',\n\tmidcir: '\\u2AF0',\n\tmiddot: '\\u00B7',\n\tminus: '\\u2212',\n\tminusb: '\\u229F',\n\tminusd: '\\u2238',\n\tminusdu: '\\u2A2A',\n\tMinusPlus: '\\u2213',\n\tmlcp: '\\u2ADB',\n\tmldr: '\\u2026',\n\tmnplus: '\\u2213',\n\tmodels: '\\u22A7',\n\tMopf: '\\uD835\\uDD44',\n\tmopf: '\\uD835\\uDD5E',\n\tmp: '\\u2213',\n\tMscr: '\\u2133',\n\tmscr: '\\uD835\\uDCC2',\n\tmstpos: '\\u223E',\n\tMu: '\\u039C',\n\tmu: '\\u03BC',\n\tmultimap: '\\u22B8',\n\tmumap: '\\u22B8',\n\tnabla: '\\u2207',\n\tNacute: '\\u0143',\n\tnacute: '\\u0144',\n\tnang: '\\u2220\\u20D2',\n\tnap: '\\u2249',\n\tnapE: '\\u2A70\\u0338',\n\tnapid: '\\u224B\\u0338',\n\tnapos: '\\u0149',\n\tnapprox: '\\u2249',\n\tnatur: '\\u266E',\n\tnatural: '\\u266E',\n\tnaturals: '\\u2115',\n\tnbsp: '\\u00A0',\n\tnbump: '\\u224E\\u0338',\n\tnbumpe: '\\u224F\\u0338',\n\tncap: '\\u2A43',\n\tNcaron: '\\u0147',\n\tncaron: '\\u0148',\n\tNcedil: '\\u0145',\n\tncedil: '\\u0146',\n\tncong: '\\u2247',\n\tncongdot: '\\u2A6D\\u0338',\n\tncup: '\\u2A42',\n\tNcy: '\\u041D',\n\tncy: '\\u043D',\n\tndash: '\\u2013',\n\tne: '\\u2260',\n\tnearhk: '\\u2924',\n\tneArr: '\\u21D7',\n\tnearr: '\\u2197',\n\tnearrow: '\\u2197',\n\tnedot: '\\u2250\\u0338',\n\tNegativeMediumSpace: '\\u200B',\n\tNegativeThickSpace: '\\u200B',\n\tNegativeThinSpace: '\\u200B',\n\tNegativeVeryThinSpace: '\\u200B',\n\tnequiv: '\\u2262',\n\tnesear: '\\u2928',\n\tnesim: '\\u2242\\u0338',\n\tNestedGreaterGreater: '\\u226B',\n\tNestedLessLess: '\\u226A',\n\tNewLine: '\\u000A',\n\tnexist: '\\u2204',\n\tnexists: '\\u2204',\n\tNfr: '\\uD835\\uDD11',\n\tnfr: '\\uD835\\uDD2B',\n\tngE: '\\u2267\\u0338',\n\tnge: '\\u2271',\n\tngeq: '\\u2271',\n\tngeqq: '\\u2267\\u0338',\n\tngeqslant: '\\u2A7E\\u0338',\n\tnges: '\\u2A7E\\u0338',\n\tnGg: '\\u22D9\\u0338',\n\tngsim: '\\u2275',\n\tnGt: '\\u226B\\u20D2',\n\tngt: '\\u226F',\n\tngtr: '\\u226F',\n\tnGtv: '\\u226B\\u0338',\n\tnhArr: '\\u21CE',\n\tnharr: '\\u21AE',\n\tnhpar: '\\u2AF2',\n\tni: '\\u220B',\n\tnis: '\\u22FC',\n\tnisd: '\\u22FA',\n\tniv: '\\u220B',\n\tNJcy: '\\u040A',\n\tnjcy: '\\u045A',\n\tnlArr: '\\u21CD',\n\tnlarr: '\\u219A',\n\tnldr: '\\u2025',\n\tnlE: '\\u2266\\u0338',\n\tnle: '\\u2270',\n\tnLeftarrow: '\\u21CD',\n\tnleftarrow: '\\u219A',\n\tnLeftrightarrow: '\\u21CE',\n\tnleftrightarrow: '\\u21AE',\n\tnleq: '\\u2270',\n\tnleqq: '\\u2266\\u0338',\n\tnleqslant: '\\u2A7D\\u0338',\n\tnles: '\\u2A7D\\u0338',\n\tnless: '\\u226E',\n\tnLl: '\\u22D8\\u0338',\n\tnlsim: '\\u2274',\n\tnLt: '\\u226A\\u20D2',\n\tnlt: '\\u226E',\n\tnltri: '\\u22EA',\n\tnltrie: '\\u22EC',\n\tnLtv: '\\u226A\\u0338',\n\tnmid: '\\u2224',\n\tNoBreak: '\\u2060',\n\tNonBreakingSpace: '\\u00A0',\n\tNopf: '\\u2115',\n\tnopf: '\\uD835\\uDD5F',\n\tNot: '\\u2AEC',\n\tnot: '\\u00AC',\n\tNotCongruent: '\\u2262',\n\tNotCupCap: '\\u226D',\n\tNotDoubleVerticalBar: '\\u2226',\n\tNotElement: '\\u2209',\n\tNotEqual: '\\u2260',\n\tNotEqualTilde: '\\u2242\\u0338',\n\tNotExists: '\\u2204',\n\tNotGreater: '\\u226F',\n\tNotGreaterEqual: '\\u2271',\n\tNotGreaterFullEqual: '\\u2267\\u0338',\n\tNotGreaterGreater: '\\u226B\\u0338',\n\tNotGreaterLess: '\\u2279',\n\tNotGreaterSlantEqual: '\\u2A7E\\u0338',\n\tNotGreaterTilde: '\\u2275',\n\tNotHumpDownHump: '\\u224E\\u0338',\n\tNotHumpEqual: '\\u224F\\u0338',\n\tnotin: '\\u2209',\n\tnotindot: '\\u22F5\\u0338',\n\tnotinE: '\\u22F9\\u0338',\n\tnotinva: '\\u2209',\n\tnotinvb: '\\u22F7',\n\tnotinvc: '\\u22F6',\n\tNotLeftTriangle: '\\u22EA',\n\tNotLeftTriangleBar: '\\u29CF\\u0338',\n\tNotLeftTriangleEqual: '\\u22EC',\n\tNotLess: '\\u226E',\n\tNotLessEqual: '\\u2270',\n\tNotLessGreater: '\\u2278',\n\tNotLessLess: '\\u226A\\u0338',\n\tNotLessSlantEqual: '\\u2A7D\\u0338',\n\tNotLessTilde: '\\u2274',\n\tNotNestedGreaterGreater: '\\u2AA2\\u0338',\n\tNotNestedLessLess: '\\u2AA1\\u0338',\n\tnotni: '\\u220C',\n\tnotniva: '\\u220C',\n\tnotnivb: '\\u22FE',\n\tnotnivc: '\\u22FD',\n\tNotPrecedes: '\\u2280',\n\tNotPrecedesEqual: '\\u2AAF\\u0338',\n\tNotPrecedesSlantEqual: '\\u22E0',\n\tNotReverseElement: '\\u220C',\n\tNotRightTriangle: '\\u22EB',\n\tNotRightTriangleBar: '\\u29D0\\u0338',\n\tNotRightTriangleEqual: '\\u22ED',\n\tNotSquareSubset: '\\u228F\\u0338',\n\tNotSquareSubsetEqual: '\\u22E2',\n\tNotSquareSuperset: '\\u2290\\u0338',\n\tNotSquareSupersetEqual: '\\u22E3',\n\tNotSubset: '\\u2282\\u20D2',\n\tNotSubsetEqual: '\\u2288',\n\tNotSucceeds: '\\u2281',\n\tNotSucceedsEqual: '\\u2AB0\\u0338',\n\tNotSucceedsSlantEqual: '\\u22E1',\n\tNotSucceedsTilde: '\\u227F\\u0338',\n\tNotSuperset: '\\u2283\\u20D2',\n\tNotSupersetEqual: '\\u2289',\n\tNotTilde: '\\u2241',\n\tNotTildeEqual: '\\u2244',\n\tNotTildeFullEqual: '\\u2247',\n\tNotTildeTilde: '\\u2249',\n\tNotVerticalBar: '\\u2224',\n\tnpar: '\\u2226',\n\tnparallel: '\\u2226',\n\tnparsl: '\\u2AFD\\u20E5',\n\tnpart: '\\u2202\\u0338',\n\tnpolint: '\\u2A14',\n\tnpr: '\\u2280',\n\tnprcue: '\\u22E0',\n\tnpre: '\\u2AAF\\u0338',\n\tnprec: '\\u2280',\n\tnpreceq: '\\u2AAF\\u0338',\n\tnrArr: '\\u21CF',\n\tnrarr: '\\u219B',\n\tnrarrc: '\\u2933\\u0338',\n\tnrarrw: '\\u219D\\u0338',\n\tnRightarrow: '\\u21CF',\n\tnrightarrow: '\\u219B',\n\tnrtri: '\\u22EB',\n\tnrtrie: '\\u22ED',\n\tnsc: '\\u2281',\n\tnsccue: '\\u22E1',\n\tnsce: '\\u2AB0\\u0338',\n\tNscr: '\\uD835\\uDCA9',\n\tnscr: '\\uD835\\uDCC3',\n\tnshortmid: '\\u2224',\n\tnshortparallel: '\\u2226',\n\tnsim: '\\u2241',\n\tnsime: '\\u2244',\n\tnsimeq: '\\u2244',\n\tnsmid: '\\u2224',\n\tnspar: '\\u2226',\n\tnsqsube: '\\u22E2',\n\tnsqsupe: '\\u22E3',\n\tnsub: '\\u2284',\n\tnsubE: '\\u2AC5\\u0338',\n\tnsube: '\\u2288',\n\tnsubset: '\\u2282\\u20D2',\n\tnsubseteq: '\\u2288',\n\tnsubseteqq: '\\u2AC5\\u0338',\n\tnsucc: '\\u2281',\n\tnsucceq: '\\u2AB0\\u0338',\n\tnsup: '\\u2285',\n\tnsupE: '\\u2AC6\\u0338',\n\tnsupe: '\\u2289',\n\tnsupset: '\\u2283\\u20D2',\n\tnsupseteq: '\\u2289',\n\tnsupseteqq: '\\u2AC6\\u0338',\n\tntgl: '\\u2279',\n\tNtilde: '\\u00D1',\n\tntilde: '\\u00F1',\n\tntlg: '\\u2278',\n\tntriangleleft: '\\u22EA',\n\tntrianglelefteq: '\\u22EC',\n\tntriangleright: '\\u22EB',\n\tntrianglerighteq: '\\u22ED',\n\tNu: '\\u039D',\n\tnu: '\\u03BD',\n\tnum: '\\u0023',\n\tnumero: '\\u2116',\n\tnumsp: '\\u2007',\n\tnvap: '\\u224D\\u20D2',\n\tnVDash: '\\u22AF',\n\tnVdash: '\\u22AE',\n\tnvDash: '\\u22AD',\n\tnvdash: '\\u22AC',\n\tnvge: '\\u2265\\u20D2',\n\tnvgt: '\\u003E\\u20D2',\n\tnvHarr: '\\u2904',\n\tnvinfin: '\\u29DE',\n\tnvlArr: '\\u2902',\n\tnvle: '\\u2264\\u20D2',\n\tnvlt: '\\u003C\\u20D2',\n\tnvltrie: '\\u22B4\\u20D2',\n\tnvrArr: '\\u2903',\n\tnvrtrie: '\\u22B5\\u20D2',\n\tnvsim: '\\u223C\\u20D2',\n\tnwarhk: '\\u2923',\n\tnwArr: '\\u21D6',\n\tnwarr: '\\u2196',\n\tnwarrow: '\\u2196',\n\tnwnear: '\\u2927',\n\tOacute: '\\u00D3',\n\toacute: '\\u00F3',\n\toast: '\\u229B',\n\tocir: '\\u229A',\n\tOcirc: '\\u00D4',\n\tocirc: '\\u00F4',\n\tOcy: '\\u041E',\n\tocy: '\\u043E',\n\todash: '\\u229D',\n\tOdblac: '\\u0150',\n\todblac: '\\u0151',\n\todiv: '\\u2A38',\n\todot: '\\u2299',\n\todsold: '\\u29BC',\n\tOElig: '\\u0152',\n\toelig: '\\u0153',\n\tofcir: '\\u29BF',\n\tOfr: '\\uD835\\uDD12',\n\tofr: '\\uD835\\uDD2C',\n\togon: '\\u02DB',\n\tOgrave: '\\u00D2',\n\tograve: '\\u00F2',\n\togt: '\\u29C1',\n\tohbar: '\\u29B5',\n\tohm: '\\u03A9',\n\toint: '\\u222E',\n\tolarr: '\\u21BA',\n\tolcir: '\\u29BE',\n\tolcross: '\\u29BB',\n\toline: '\\u203E',\n\tolt: '\\u29C0',\n\tOmacr: '\\u014C',\n\tomacr: '\\u014D',\n\tOmega: '\\u03A9',\n\tomega: '\\u03C9',\n\tOmicron: '\\u039F',\n\tomicron: '\\u03BF',\n\tomid: '\\u29B6',\n\tominus: '\\u2296',\n\tOopf: '\\uD835\\uDD46',\n\toopf: '\\uD835\\uDD60',\n\topar: '\\u29B7',\n\tOpenCurlyDoubleQuote: '\\u201C',\n\tOpenCurlyQuote: '\\u2018',\n\toperp: '\\u29B9',\n\toplus: '\\u2295',\n\tOr: '\\u2A54',\n\tor: '\\u2228',\n\torarr: '\\u21BB',\n\tord: '\\u2A5D',\n\torder: '\\u2134',\n\torderof: '\\u2134',\n\tordf: '\\u00AA',\n\tordm: '\\u00BA',\n\torigof: '\\u22B6',\n\toror: '\\u2A56',\n\torslope: '\\u2A57',\n\torv: '\\u2A5B',\n\toS: '\\u24C8',\n\tOscr: '\\uD835\\uDCAA',\n\toscr: '\\u2134',\n\tOslash: '\\u00D8',\n\toslash: '\\u00F8',\n\tosol: '\\u2298',\n\tOtilde: '\\u00D5',\n\totilde: '\\u00F5',\n\tOtimes: '\\u2A37',\n\totimes: '\\u2297',\n\totimesas: '\\u2A36',\n\tOuml: '\\u00D6',\n\touml: '\\u00F6',\n\tovbar: '\\u233D',\n\tOverBar: '\\u203E',\n\tOverBrace: '\\u23DE',\n\tOverBracket: '\\u23B4',\n\tOverParenthesis: '\\u23DC',\n\tpar: '\\u2225',\n\tpara: '\\u00B6',\n\tparallel: '\\u2225',\n\tparsim: '\\u2AF3',\n\tparsl: '\\u2AFD',\n\tpart: '\\u2202',\n\tPartialD: '\\u2202',\n\tPcy: '\\u041F',\n\tpcy: '\\u043F',\n\tpercnt: '\\u0025',\n\tperiod: '\\u002E',\n\tpermil: '\\u2030',\n\tperp: '\\u22A5',\n\tpertenk: '\\u2031',\n\tPfr: '\\uD835\\uDD13',\n\tpfr: '\\uD835\\uDD2D',\n\tPhi: '\\u03A6',\n\tphi: '\\u03C6',\n\tphiv: '\\u03D5',\n\tphmmat: '\\u2133',\n\tphone: '\\u260E',\n\tPi: '\\u03A0',\n\tpi: '\\u03C0',\n\tpitchfork: '\\u22D4',\n\tpiv: '\\u03D6',\n\tplanck: '\\u210F',\n\tplanckh: '\\u210E',\n\tplankv: '\\u210F',\n\tplus: '\\u002B',\n\tplusacir: '\\u2A23',\n\tplusb: '\\u229E',\n\tpluscir: '\\u2A22',\n\tplusdo: '\\u2214',\n\tplusdu: '\\u2A25',\n\tpluse: '\\u2A72',\n\tPlusMinus: '\\u00B1',\n\tplusmn: '\\u00B1',\n\tplussim: '\\u2A26',\n\tplustwo: '\\u2A27',\n\tpm: '\\u00B1',\n\tPoincareplane: '\\u210C',\n\tpointint: '\\u2A15',\n\tPopf: '\\u2119',\n\tpopf: '\\uD835\\uDD61',\n\tpound: '\\u00A3',\n\tPr: '\\u2ABB',\n\tpr: '\\u227A',\n\tprap: '\\u2AB7',\n\tprcue: '\\u227C',\n\tprE: '\\u2AB3',\n\tpre: '\\u2AAF',\n\tprec: '\\u227A',\n\tprecapprox: '\\u2AB7',\n\tpreccurlyeq: '\\u227C',\n\tPrecedes: '\\u227A',\n\tPrecedesEqual: '\\u2AAF',\n\tPrecedesSlantEqual: '\\u227C',\n\tPrecedesTilde: '\\u227E',\n\tpreceq: '\\u2AAF',\n\tprecnapprox: '\\u2AB9',\n\tprecneqq: '\\u2AB5',\n\tprecnsim: '\\u22E8',\n\tprecsim: '\\u227E',\n\tPrime: '\\u2033',\n\tprime: '\\u2032',\n\tprimes: '\\u2119',\n\tprnap: '\\u2AB9',\n\tprnE: '\\u2AB5',\n\tprnsim: '\\u22E8',\n\tprod: '\\u220F',\n\tProduct: '\\u220F',\n\tprofalar: '\\u232E',\n\tprofline: '\\u2312',\n\tprofsurf: '\\u2313',\n\tprop: '\\u221D',\n\tProportion: '\\u2237',\n\tProportional: '\\u221D',\n\tpropto: '\\u221D',\n\tprsim: '\\u227E',\n\tprurel: '\\u22B0',\n\tPscr: '\\uD835\\uDCAB',\n\tpscr: '\\uD835\\uDCC5',\n\tPsi: '\\u03A8',\n\tpsi: '\\u03C8',\n\tpuncsp: '\\u2008',\n\tQfr: '\\uD835\\uDD14',\n\tqfr: '\\uD835\\uDD2E',\n\tqint: '\\u2A0C',\n\tQopf: '\\u211A',\n\tqopf: '\\uD835\\uDD62',\n\tqprime: '\\u2057',\n\tQscr: '\\uD835\\uDCAC',\n\tqscr: '\\uD835\\uDCC6',\n\tquaternions: '\\u210D',\n\tquatint: '\\u2A16',\n\tquest: '\\u003F',\n\tquesteq: '\\u225F',\n\tQUOT: '\\u0022',\n\tquot: '\\u0022',\n\trAarr: '\\u21DB',\n\trace: '\\u223D\\u0331',\n\tRacute: '\\u0154',\n\tracute: '\\u0155',\n\tradic: '\\u221A',\n\traemptyv: '\\u29B3',\n\tRang: '\\u27EB',\n\trang: '\\u27E9',\n\trangd: '\\u2992',\n\trange: '\\u29A5',\n\trangle: '\\u27E9',\n\traquo: '\\u00BB',\n\tRarr: '\\u21A0',\n\trArr: '\\u21D2',\n\trarr: '\\u2192',\n\trarrap: '\\u2975',\n\trarrb: '\\u21E5',\n\trarrbfs: '\\u2920',\n\trarrc: '\\u2933',\n\trarrfs: '\\u291E',\n\trarrhk: '\\u21AA',\n\trarrlp: '\\u21AC',\n\trarrpl: '\\u2945',\n\trarrsim: '\\u2974',\n\tRarrtl: '\\u2916',\n\trarrtl: '\\u21A3',\n\trarrw: '\\u219D',\n\trAtail: '\\u291C',\n\tratail: '\\u291A',\n\tratio: '\\u2236',\n\trationals: '\\u211A',\n\tRBarr: '\\u2910',\n\trBarr: '\\u290F',\n\trbarr: '\\u290D',\n\trbbrk: '\\u2773',\n\trbrace: '\\u007D',\n\trbrack: '\\u005D',\n\trbrke: '\\u298C',\n\trbrksld: '\\u298E',\n\trbrkslu: '\\u2990',\n\tRcaron: '\\u0158',\n\trcaron: '\\u0159',\n\tRcedil: '\\u0156',\n\trcedil: '\\u0157',\n\trceil: '\\u2309',\n\trcub: '\\u007D',\n\tRcy: '\\u0420',\n\trcy: '\\u0440',\n\trdca: '\\u2937',\n\trdldhar: '\\u2969',\n\trdquo: '\\u201D',\n\trdquor: '\\u201D',\n\trdsh: '\\u21B3',\n\tRe: '\\u211C',\n\treal: '\\u211C',\n\trealine: '\\u211B',\n\trealpart: '\\u211C',\n\treals: '\\u211D',\n\trect: '\\u25AD',\n\tREG: '\\u00AE',\n\treg: '\\u00AE',\n\tReverseElement: '\\u220B',\n\tReverseEquilibrium: '\\u21CB',\n\tReverseUpEquilibrium: '\\u296F',\n\trfisht: '\\u297D',\n\trfloor: '\\u230B',\n\tRfr: '\\u211C',\n\trfr: '\\uD835\\uDD2F',\n\trHar: '\\u2964',\n\trhard: '\\u21C1',\n\trharu: '\\u21C0',\n\trharul: '\\u296C',\n\tRho: '\\u03A1',\n\trho: '\\u03C1',\n\trhov: '\\u03F1',\n\tRightAngleBracket: '\\u27E9',\n\tRightArrow: '\\u2192',\n\tRightarrow: '\\u21D2',\n\trightarrow: '\\u2192',\n\tRightArrowBar: '\\u21E5',\n\tRightArrowLeftArrow: '\\u21C4',\n\trightarrowtail: '\\u21A3',\n\tRightCeiling: '\\u2309',\n\tRightDoubleBracket: '\\u27E7',\n\tRightDownTeeVector: '\\u295D',\n\tRightDownVector: '\\u21C2',\n\tRightDownVectorBar: '\\u2955',\n\tRightFloor: '\\u230B',\n\trightharpoondown: '\\u21C1',\n\trightharpoonup: '\\u21C0',\n\trightleftarrows: '\\u21C4',\n\trightleftharpoons: '\\u21CC',\n\trightrightarrows: '\\u21C9',\n\trightsquigarrow: '\\u219D',\n\tRightTee: '\\u22A2',\n\tRightTeeArrow: '\\u21A6',\n\tRightTeeVector: '\\u295B',\n\trightthreetimes: '\\u22CC',\n\tRightTriangle: '\\u22B3',\n\tRightTriangleBar: '\\u29D0',\n\tRightTriangleEqual: '\\u22B5',\n\tRightUpDownVector: '\\u294F',\n\tRightUpTeeVector: '\\u295C',\n\tRightUpVector: '\\u21BE',\n\tRightUpVectorBar: '\\u2954',\n\tRightVector: '\\u21C0',\n\tRightVectorBar: '\\u2953',\n\tring: '\\u02DA',\n\trisingdotseq: '\\u2253',\n\trlarr: '\\u21C4',\n\trlhar: '\\u21CC',\n\trlm: '\\u200F',\n\trmoust: '\\u23B1',\n\trmoustache: '\\u23B1',\n\trnmid: '\\u2AEE',\n\troang: '\\u27ED',\n\troarr: '\\u21FE',\n\trobrk: '\\u27E7',\n\tropar: '\\u2986',\n\tRopf: '\\u211D',\n\tropf: '\\uD835\\uDD63',\n\troplus: '\\u2A2E',\n\trotimes: '\\u2A35',\n\tRoundImplies: '\\u2970',\n\trpar: '\\u0029',\n\trpargt: '\\u2994',\n\trppolint: '\\u2A12',\n\trrarr: '\\u21C9',\n\tRrightarrow: '\\u21DB',\n\trsaquo: '\\u203A',\n\tRscr: '\\u211B',\n\trscr: '\\uD835\\uDCC7',\n\tRsh: '\\u21B1',\n\trsh: '\\u21B1',\n\trsqb: '\\u005D',\n\trsquo: '\\u2019',\n\trsquor: '\\u2019',\n\trthree: '\\u22CC',\n\trtimes: '\\u22CA',\n\trtri: '\\u25B9',\n\trtrie: '\\u22B5',\n\trtrif: '\\u25B8',\n\trtriltri: '\\u29CE',\n\tRuleDelayed: '\\u29F4',\n\truluhar: '\\u2968',\n\trx: '\\u211E',\n\tSacute: '\\u015A',\n\tsacute: '\\u015B',\n\tsbquo: '\\u201A',\n\tSc: '\\u2ABC',\n\tsc: '\\u227B',\n\tscap: '\\u2AB8',\n\tScaron: '\\u0160',\n\tscaron: '\\u0161',\n\tsccue: '\\u227D',\n\tscE: '\\u2AB4',\n\tsce: '\\u2AB0',\n\tScedil: '\\u015E',\n\tscedil: '\\u015F',\n\tScirc: '\\u015C',\n\tscirc: '\\u015D',\n\tscnap: '\\u2ABA',\n\tscnE: '\\u2AB6',\n\tscnsim: '\\u22E9',\n\tscpolint: '\\u2A13',\n\tscsim: '\\u227F',\n\tScy: '\\u0421',\n\tscy: '\\u0441',\n\tsdot: '\\u22C5',\n\tsdotb: '\\u22A1',\n\tsdote: '\\u2A66',\n\tsearhk: '\\u2925',\n\tseArr: '\\u21D8',\n\tsearr: '\\u2198',\n\tsearrow: '\\u2198',\n\tsect: '\\u00A7',\n\tsemi: '\\u003B',\n\tseswar: '\\u2929',\n\tsetminus: '\\u2216',\n\tsetmn: '\\u2216',\n\tsext: '\\u2736',\n\tSfr: '\\uD835\\uDD16',\n\tsfr: '\\uD835\\uDD30',\n\tsfrown: '\\u2322',\n\tsharp: '\\u266F',\n\tSHCHcy: '\\u0429',\n\tshchcy: '\\u0449',\n\tSHcy: '\\u0428',\n\tshcy: '\\u0448',\n\tShortDownArrow: '\\u2193',\n\tShortLeftArrow: '\\u2190',\n\tshortmid: '\\u2223',\n\tshortparallel: '\\u2225',\n\tShortRightArrow: '\\u2192',\n\tShortUpArrow: '\\u2191',\n\tshy: '\\u00AD',\n\tSigma: '\\u03A3',\n\tsigma: '\\u03C3',\n\tsigmaf: '\\u03C2',\n\tsigmav: '\\u03C2',\n\tsim: '\\u223C',\n\tsimdot: '\\u2A6A',\n\tsime: '\\u2243',\n\tsimeq: '\\u2243',\n\tsimg: '\\u2A9E',\n\tsimgE: '\\u2AA0',\n\tsiml: '\\u2A9D',\n\tsimlE: '\\u2A9F',\n\tsimne: '\\u2246',\n\tsimplus: '\\u2A24',\n\tsimrarr: '\\u2972',\n\tslarr: '\\u2190',\n\tSmallCircle: '\\u2218',\n\tsmallsetminus: '\\u2216',\n\tsmashp: '\\u2A33',\n\tsmeparsl: '\\u29E4',\n\tsmid: '\\u2223',\n\tsmile: '\\u2323',\n\tsmt: '\\u2AAA',\n\tsmte: '\\u2AAC',\n\tsmtes: '\\u2AAC\\uFE00',\n\tSOFTcy: '\\u042C',\n\tsoftcy: '\\u044C',\n\tsol: '\\u002F',\n\tsolb: '\\u29C4',\n\tsolbar: '\\u233F',\n\tSopf: '\\uD835\\uDD4A',\n\tsopf: '\\uD835\\uDD64',\n\tspades: '\\u2660',\n\tspadesuit: '\\u2660',\n\tspar: '\\u2225',\n\tsqcap: '\\u2293',\n\tsqcaps: '\\u2293\\uFE00',\n\tsqcup: '\\u2294',\n\tsqcups: '\\u2294\\uFE00',\n\tSqrt: '\\u221A',\n\tsqsub: '\\u228F',\n\tsqsube: '\\u2291',\n\tsqsubset: '\\u228F',\n\tsqsubseteq: '\\u2291',\n\tsqsup: '\\u2290',\n\tsqsupe: '\\u2292',\n\tsqsupset: '\\u2290',\n\tsqsupseteq: '\\u2292',\n\tsqu: '\\u25A1',\n\tSquare: '\\u25A1',\n\tsquare: '\\u25A1',\n\tSquareIntersection: '\\u2293',\n\tSquareSubset: '\\u228F',\n\tSquareSubsetEqual: '\\u2291',\n\tSquareSuperset: '\\u2290',\n\tSquareSupersetEqual: '\\u2292',\n\tSquareUnion: '\\u2294',\n\tsquarf: '\\u25AA',\n\tsquf: '\\u25AA',\n\tsrarr: '\\u2192',\n\tSscr: '\\uD835\\uDCAE',\n\tsscr: '\\uD835\\uDCC8',\n\tssetmn: '\\u2216',\n\tssmile: '\\u2323',\n\tsstarf: '\\u22C6',\n\tStar: '\\u22C6',\n\tstar: '\\u2606',\n\tstarf: '\\u2605',\n\tstraightepsilon: '\\u03F5',\n\tstraightphi: '\\u03D5',\n\tstrns: '\\u00AF',\n\tSub: '\\u22D0',\n\tsub: '\\u2282',\n\tsubdot: '\\u2ABD',\n\tsubE: '\\u2AC5',\n\tsube: '\\u2286',\n\tsubedot: '\\u2AC3',\n\tsubmult: '\\u2AC1',\n\tsubnE: '\\u2ACB',\n\tsubne: '\\u228A',\n\tsubplus: '\\u2ABF',\n\tsubrarr: '\\u2979',\n\tSubset: '\\u22D0',\n\tsubset: '\\u2282',\n\tsubseteq: '\\u2286',\n\tsubseteqq: '\\u2AC5',\n\tSubsetEqual: '\\u2286',\n\tsubsetneq: '\\u228A',\n\tsubsetneqq: '\\u2ACB',\n\tsubsim: '\\u2AC7',\n\tsubsub: '\\u2AD5',\n\tsubsup: '\\u2AD3',\n\tsucc: '\\u227B',\n\tsuccapprox: '\\u2AB8',\n\tsucccurlyeq: '\\u227D',\n\tSucceeds: '\\u227B',\n\tSucceedsEqual: '\\u2AB0',\n\tSucceedsSlantEqual: '\\u227D',\n\tSucceedsTilde: '\\u227F',\n\tsucceq: '\\u2AB0',\n\tsuccnapprox: '\\u2ABA',\n\tsuccneqq: '\\u2AB6',\n\tsuccnsim: '\\u22E9',\n\tsuccsim: '\\u227F',\n\tSuchThat: '\\u220B',\n\tSum: '\\u2211',\n\tsum: '\\u2211',\n\tsung: '\\u266A',\n\tSup: '\\u22D1',\n\tsup: '\\u2283',\n\tsup1: '\\u00B9',\n\tsup2: '\\u00B2',\n\tsup3: '\\u00B3',\n\tsupdot: '\\u2ABE',\n\tsupdsub: '\\u2AD8',\n\tsupE: '\\u2AC6',\n\tsupe: '\\u2287',\n\tsupedot: '\\u2AC4',\n\tSuperset: '\\u2283',\n\tSupersetEqual: '\\u2287',\n\tsuphsol: '\\u27C9',\n\tsuphsub: '\\u2AD7',\n\tsuplarr: '\\u297B',\n\tsupmult: '\\u2AC2',\n\tsupnE: '\\u2ACC',\n\tsupne: '\\u228B',\n\tsupplus: '\\u2AC0',\n\tSupset: '\\u22D1',\n\tsupset: '\\u2283',\n\tsupseteq: '\\u2287',\n\tsupseteqq: '\\u2AC6',\n\tsupsetneq: '\\u228B',\n\tsupsetneqq: '\\u2ACC',\n\tsupsim: '\\u2AC8',\n\tsupsub: '\\u2AD4',\n\tsupsup: '\\u2AD6',\n\tswarhk: '\\u2926',\n\tswArr: '\\u21D9',\n\tswarr: '\\u2199',\n\tswarrow: '\\u2199',\n\tswnwar: '\\u292A',\n\tszlig: '\\u00DF',\n\tTab: '\\u0009',\n\ttarget: '\\u2316',\n\tTau: '\\u03A4',\n\ttau: '\\u03C4',\n\ttbrk: '\\u23B4',\n\tTcaron: '\\u0164',\n\ttcaron: '\\u0165',\n\tTcedil: '\\u0162',\n\ttcedil: '\\u0163',\n\tTcy: '\\u0422',\n\ttcy: '\\u0442',\n\ttdot: '\\u20DB',\n\ttelrec: '\\u2315',\n\tTfr: '\\uD835\\uDD17',\n\ttfr: '\\uD835\\uDD31',\n\tthere4: '\\u2234',\n\tTherefore: '\\u2234',\n\ttherefore: '\\u2234',\n\tTheta: '\\u0398',\n\ttheta: '\\u03B8',\n\tthetasym: '\\u03D1',\n\tthetav: '\\u03D1',\n\tthickapprox: '\\u2248',\n\tthicksim: '\\u223C',\n\tThickSpace: '\\u205F\\u200A',\n\tthinsp: '\\u2009',\n\tThinSpace: '\\u2009',\n\tthkap: '\\u2248',\n\tthksim: '\\u223C',\n\tTHORN: '\\u00DE',\n\tthorn: '\\u00FE',\n\tTilde: '\\u223C',\n\ttilde: '\\u02DC',\n\tTildeEqual: '\\u2243',\n\tTildeFullEqual: '\\u2245',\n\tTildeTilde: '\\u2248',\n\ttimes: '\\u00D7',\n\ttimesb: '\\u22A0',\n\ttimesbar: '\\u2A31',\n\ttimesd: '\\u2A30',\n\ttint: '\\u222D',\n\ttoea: '\\u2928',\n\ttop: '\\u22A4',\n\ttopbot: '\\u2336',\n\ttopcir: '\\u2AF1',\n\tTopf: '\\uD835\\uDD4B',\n\ttopf: '\\uD835\\uDD65',\n\ttopfork: '\\u2ADA',\n\ttosa: '\\u2929',\n\ttprime: '\\u2034',\n\tTRADE: '\\u2122',\n\ttrade: '\\u2122',\n\ttriangle: '\\u25B5',\n\ttriangledown: '\\u25BF',\n\ttriangleleft: '\\u25C3',\n\ttrianglelefteq: '\\u22B4',\n\ttriangleq: '\\u225C',\n\ttriangleright: '\\u25B9',\n\ttrianglerighteq: '\\u22B5',\n\ttridot: '\\u25EC',\n\ttrie: '\\u225C',\n\ttriminus: '\\u2A3A',\n\tTripleDot: '\\u20DB',\n\ttriplus: '\\u2A39',\n\ttrisb: '\\u29CD',\n\ttritime: '\\u2A3B',\n\ttrpezium: '\\u23E2',\n\tTscr: '\\uD835\\uDCAF',\n\ttscr: '\\uD835\\uDCC9',\n\tTScy: '\\u0426',\n\ttscy: '\\u0446',\n\tTSHcy: '\\u040B',\n\ttshcy: '\\u045B',\n\tTstrok: '\\u0166',\n\ttstrok: '\\u0167',\n\ttwixt: '\\u226C',\n\ttwoheadleftarrow: '\\u219E',\n\ttwoheadrightarrow: '\\u21A0',\n\tUacute: '\\u00DA',\n\tuacute: '\\u00FA',\n\tUarr: '\\u219F',\n\tuArr: '\\u21D1',\n\tuarr: '\\u2191',\n\tUarrocir: '\\u2949',\n\tUbrcy: '\\u040E',\n\tubrcy: '\\u045E',\n\tUbreve: '\\u016C',\n\tubreve: '\\u016D',\n\tUcirc: '\\u00DB',\n\tucirc: '\\u00FB',\n\tUcy: '\\u0423',\n\tucy: '\\u0443',\n\tudarr: '\\u21C5',\n\tUdblac: '\\u0170',\n\tudblac: '\\u0171',\n\tudhar: '\\u296E',\n\tufisht: '\\u297E',\n\tUfr: '\\uD835\\uDD18',\n\tufr: '\\uD835\\uDD32',\n\tUgrave: '\\u00D9',\n\tugrave: '\\u00F9',\n\tuHar: '\\u2963',\n\tuharl: '\\u21BF',\n\tuharr: '\\u21BE',\n\tuhblk: '\\u2580',\n\tulcorn: '\\u231C',\n\tulcorner: '\\u231C',\n\tulcrop: '\\u230F',\n\tultri: '\\u25F8',\n\tUmacr: '\\u016A',\n\tumacr: '\\u016B',\n\tuml: '\\u00A8',\n\tUnderBar: '\\u005F',\n\tUnderBrace: '\\u23DF',\n\tUnderBracket: '\\u23B5',\n\tUnderParenthesis: '\\u23DD',\n\tUnion: '\\u22C3',\n\tUnionPlus: '\\u228E',\n\tUogon: '\\u0172',\n\tuogon: '\\u0173',\n\tUopf: '\\uD835\\uDD4C',\n\tuopf: '\\uD835\\uDD66',\n\tUpArrow: '\\u2191',\n\tUparrow: '\\u21D1',\n\tuparrow: '\\u2191',\n\tUpArrowBar: '\\u2912',\n\tUpArrowDownArrow: '\\u21C5',\n\tUpDownArrow: '\\u2195',\n\tUpdownarrow: '\\u21D5',\n\tupdownarrow: '\\u2195',\n\tUpEquilibrium: '\\u296E',\n\tupharpoonleft: '\\u21BF',\n\tupharpoonright: '\\u21BE',\n\tuplus: '\\u228E',\n\tUpperLeftArrow: '\\u2196',\n\tUpperRightArrow: '\\u2197',\n\tUpsi: '\\u03D2',\n\tupsi: '\\u03C5',\n\tupsih: '\\u03D2',\n\tUpsilon: '\\u03A5',\n\tupsilon: '\\u03C5',\n\tUpTee: '\\u22A5',\n\tUpTeeArrow: '\\u21A5',\n\tupuparrows: '\\u21C8',\n\turcorn: '\\u231D',\n\turcorner: '\\u231D',\n\turcrop: '\\u230E',\n\tUring: '\\u016E',\n\turing: '\\u016F',\n\turtri: '\\u25F9',\n\tUscr: '\\uD835\\uDCB0',\n\tuscr: '\\uD835\\uDCCA',\n\tutdot: '\\u22F0',\n\tUtilde: '\\u0168',\n\tutilde: '\\u0169',\n\tutri: '\\u25B5',\n\tutrif: '\\u25B4',\n\tuuarr: '\\u21C8',\n\tUuml: '\\u00DC',\n\tuuml: '\\u00FC',\n\tuwangle: '\\u29A7',\n\tvangrt: '\\u299C',\n\tvarepsilon: '\\u03F5',\n\tvarkappa: '\\u03F0',\n\tvarnothing: '\\u2205',\n\tvarphi: '\\u03D5',\n\tvarpi: '\\u03D6',\n\tvarpropto: '\\u221D',\n\tvArr: '\\u21D5',\n\tvarr: '\\u2195',\n\tvarrho: '\\u03F1',\n\tvarsigma: '\\u03C2',\n\tvarsubsetneq: '\\u228A\\uFE00',\n\tvarsubsetneqq: '\\u2ACB\\uFE00',\n\tvarsupsetneq: '\\u228B\\uFE00',\n\tvarsupsetneqq: '\\u2ACC\\uFE00',\n\tvartheta: '\\u03D1',\n\tvartriangleleft: '\\u22B2',\n\tvartriangleright: '\\u22B3',\n\tVbar: '\\u2AEB',\n\tvBar: '\\u2AE8',\n\tvBarv: '\\u2AE9',\n\tVcy: '\\u0412',\n\tvcy: '\\u0432',\n\tVDash: '\\u22AB',\n\tVdash: '\\u22A9',\n\tvDash: '\\u22A8',\n\tvdash: '\\u22A2',\n\tVdashl: '\\u2AE6',\n\tVee: '\\u22C1',\n\tvee: '\\u2228',\n\tveebar: '\\u22BB',\n\tveeeq: '\\u225A',\n\tvellip: '\\u22EE',\n\tVerbar: '\\u2016',\n\tverbar: '\\u007C',\n\tVert: '\\u2016',\n\tvert: '\\u007C',\n\tVerticalBar: '\\u2223',\n\tVerticalLine: '\\u007C',\n\tVerticalSeparator: '\\u2758',\n\tVerticalTilde: '\\u2240',\n\tVeryThinSpace: '\\u200A',\n\tVfr: '\\uD835\\uDD19',\n\tvfr: '\\uD835\\uDD33',\n\tvltri: '\\u22B2',\n\tvnsub: '\\u2282\\u20D2',\n\tvnsup: '\\u2283\\u20D2',\n\tVopf: '\\uD835\\uDD4D',\n\tvopf: '\\uD835\\uDD67',\n\tvprop: '\\u221D',\n\tvrtri: '\\u22B3',\n\tVscr: '\\uD835\\uDCB1',\n\tvscr: '\\uD835\\uDCCB',\n\tvsubnE: '\\u2ACB\\uFE00',\n\tvsubne: '\\u228A\\uFE00',\n\tvsupnE: '\\u2ACC\\uFE00',\n\tvsupne: '\\u228B\\uFE00',\n\tVvdash: '\\u22AA',\n\tvzigzag: '\\u299A',\n\tWcirc: '\\u0174',\n\twcirc: '\\u0175',\n\twedbar: '\\u2A5F',\n\tWedge: '\\u22C0',\n\twedge: '\\u2227',\n\twedgeq: '\\u2259',\n\tweierp: '\\u2118',\n\tWfr: '\\uD835\\uDD1A',\n\twfr: '\\uD835\\uDD34',\n\tWopf: '\\uD835\\uDD4E',\n\twopf: '\\uD835\\uDD68',\n\twp: '\\u2118',\n\twr: '\\u2240',\n\twreath: '\\u2240',\n\tWscr: '\\uD835\\uDCB2',\n\twscr: '\\uD835\\uDCCC',\n\txcap: '\\u22C2',\n\txcirc: '\\u25EF',\n\txcup: '\\u22C3',\n\txdtri: '\\u25BD',\n\tXfr: '\\uD835\\uDD1B',\n\txfr: '\\uD835\\uDD35',\n\txhArr: '\\u27FA',\n\txharr: '\\u27F7',\n\tXi: '\\u039E',\n\txi: '\\u03BE',\n\txlArr: '\\u27F8',\n\txlarr: '\\u27F5',\n\txmap: '\\u27FC',\n\txnis: '\\u22FB',\n\txodot: '\\u2A00',\n\tXopf: '\\uD835\\uDD4F',\n\txopf: '\\uD835\\uDD69',\n\txoplus: '\\u2A01',\n\txotime: '\\u2A02',\n\txrArr: '\\u27F9',\n\txrarr: '\\u27F6',\n\tXscr: '\\uD835\\uDCB3',\n\txscr: '\\uD835\\uDCCD',\n\txsqcup: '\\u2A06',\n\txuplus: '\\u2A04',\n\txutri: '\\u25B3',\n\txvee: '\\u22C1',\n\txwedge: '\\u22C0',\n\tYacute: '\\u00DD',\n\tyacute: '\\u00FD',\n\tYAcy: '\\u042F',\n\tyacy: '\\u044F',\n\tYcirc: '\\u0176',\n\tycirc: '\\u0177',\n\tYcy: '\\u042B',\n\tycy: '\\u044B',\n\tyen: '\\u00A5',\n\tYfr: '\\uD835\\uDD1C',\n\tyfr: '\\uD835\\uDD36',\n\tYIcy: '\\u0407',\n\tyicy: '\\u0457',\n\tYopf: '\\uD835\\uDD50',\n\tyopf: '\\uD835\\uDD6A',\n\tYscr: '\\uD835\\uDCB4',\n\tyscr: '\\uD835\\uDCCE',\n\tYUcy: '\\u042E',\n\tyucy: '\\u044E',\n\tYuml: '\\u0178',\n\tyuml: '\\u00FF',\n\tZacute: '\\u0179',\n\tzacute: '\\u017A',\n\tZcaron: '\\u017D',\n\tzcaron: '\\u017E',\n\tZcy: '\\u0417',\n\tzcy: '\\u0437',\n\tZdot: '\\u017B',\n\tzdot: '\\u017C',\n\tzeetrf: '\\u2128',\n\tZeroWidthSpace: '\\u200B',\n\tZeta: '\\u0396',\n\tzeta: '\\u03B6',\n\tZfr: '\\u2128',\n\tzfr: '\\uD835\\uDD37',\n\tZHcy: '\\u0416',\n\tzhcy: '\\u0436',\n\tzigrarr: '\\u21DD',\n\tZopf: '\\u2124',\n\tzopf: '\\uD835\\uDD6B',\n\tZscr: '\\uD835\\uDCB5',\n\tzscr: '\\uD835\\uDCCF',\n\tzwj: '\\u200D',\n\tzwnj: '\\u200C',\n});\n\n/**\n * @deprecated use `HTML_ENTITIES` instead\n * @see HTML_ENTITIES\n */\nexports.entityMap = exports.HTML_ENTITIES;\n", "var NAMESPACE = require(\"./conventions\").NAMESPACE;\n\n//[4] \tNameStartChar\t ::= \t\":\" | [A-Z] | \"_\" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]\n//[4a] \tNameChar\t ::= \tNameStartChar | \"-\" | \".\" | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]\n//[5] \tName\t ::= \tNameStartChar (NameChar)*\nvar nameStartChar = /[A-Z_a-z\\xC0-\\xD6\\xD8-\\xF6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD]///\\u10000-\\uEFFFF\nvar nameChar = new RegExp(\"[\\\\-\\\\.0-9\"+nameStartChar.source.slice(1,-1)+\"\\\\u00B7\\\\u0300-\\\\u036F\\\\u203F-\\\\u2040]\");\nvar tagNamePattern = new RegExp('^'+nameStartChar.source+nameChar.source+'*(?:\\:'+nameStartChar.source+nameChar.source+'*)?$');\n//var tagNamePattern = /^[a-zA-Z_][\\w\\-\\.]*(?:\\:[a-zA-Z_][\\w\\-\\.]*)?$/\n//var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')\n\n//S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n//S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\nvar S_TAG = 0;//tag name offerring\nvar S_ATTR = 1;//attr name offerring\nvar S_ATTR_SPACE=2;//attr name end and space offer\nvar S_EQ = 3;//=space?\nvar S_ATTR_NOQUOT_VALUE = 4;//attr value(no quot value only)\nvar S_ATTR_END = 5;//attr value end and no space(quot end)\nvar S_TAG_SPACE = 6;//(attr value end || tag end ) && (space offer)\nvar S_TAG_CLOSE = 7;//closed el\n\n/**\n * Creates an error that will not be caught by XMLReader aka the SAX parser.\n *\n * @param {string} message\n * @param {any?} locator Optional, can provide details about the location in the source\n * @constructor\n */\nfunction ParseError(message, locator) {\n\tthis.message = message\n\tthis.locator = locator\n\tif(Error.captureStackTrace) Error.captureStackTrace(this, ParseError);\n}\nParseError.prototype = new Error();\nParseError.prototype.name = ParseError.name\n\nfunction XMLReader(){\n\n}\n\nXMLReader.prototype = {\n\tparse:function(source,defaultNSMap,entityMap){\n\t\tvar domBuilder = this.domBuilder;\n\t\tdomBuilder.startDocument();\n\t\t_copy(defaultNSMap ,defaultNSMap = {})\n\t\tparse(source,defaultNSMap,entityMap,\n\t\t\t\tdomBuilder,this.errorHandler);\n\t\tdomBuilder.endDocument();\n\t}\n}\nfunction parse(source,defaultNSMapCopy,entityMap,domBuilder,errorHandler){\n\tfunction fixedFromCharCode(code) {\n\t\t// String.prototype.fromCharCode does not supports\n\t\t// > 2 bytes unicode chars directly\n\t\tif (code > 0xffff) {\n\t\t\tcode -= 0x10000;\n\t\t\tvar surrogate1 = 0xd800 + (code >> 10)\n\t\t\t\t, surrogate2 = 0xdc00 + (code & 0x3ff);\n\n\t\t\treturn String.fromCharCode(surrogate1, surrogate2);\n\t\t} else {\n\t\t\treturn String.fromCharCode(code);\n\t\t}\n\t}\n\tfunction entityReplacer(a){\n\t\tvar k = a.slice(1,-1);\n\t\tif (Object.hasOwnProperty.call(entityMap, k)) {\n\t\t\treturn entityMap[k];\n\t\t}else if(k.charAt(0) === '#'){\n\t\t\treturn fixedFromCharCode(parseInt(k.substr(1).replace('x','0x')))\n\t\t}else{\n\t\t\terrorHandler.error('entity not found:'+a);\n\t\t\treturn a;\n\t\t}\n\t}\n\tfunction appendText(end){//has some bugs\n\t\tif(end>start){\n\t\t\tvar xt = source.substring(start,end).replace(/&#?\\w+;/g,entityReplacer);\n\t\t\tlocator&&position(start);\n\t\t\tdomBuilder.characters(xt,0,end-start);\n\t\t\tstart = end\n\t\t}\n\t}\n\tfunction position(p,m){\n\t\twhile(p>=lineEnd && (m = linePattern.exec(source))){\n\t\t\tlineStart = m.index;\n\t\t\tlineEnd = lineStart + m[0].length;\n\t\t\tlocator.lineNumber++;\n\t\t\t//console.log('line++:',locator,startPos,endPos)\n\t\t}\n\t\tlocator.columnNumber = p-lineStart+1;\n\t}\n\tvar lineStart = 0;\n\tvar lineEnd = 0;\n\tvar linePattern = /.*(?:\\r\\n?|\\n)|.*$/g\n\tvar locator = domBuilder.locator;\n\n\tvar parseStack = [{currentNSMap:defaultNSMapCopy}]\n\tvar closeMap = {};\n\tvar start = 0;\n\twhile(true){\n\t\ttry{\n\t\t\tvar tagStart = source.indexOf('<',start);\n\t\t\tif(tagStart<0){\n\t\t\t\tif(!source.substr(start).match(/^\\s*$/)){\n\t\t\t\t\tvar doc = domBuilder.doc;\n\t \t\t\tvar text = doc.createTextNode(source.substr(start));\n\t \t\t\tdoc.appendChild(text);\n\t \t\t\tdomBuilder.currentElement = text;\n\t\t\t\t}\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tif(tagStart>start){\n\t\t\t\tappendText(tagStart);\n\t\t\t}\n\t\t\tswitch(source.charAt(tagStart+1)){\n\t\t\tcase '/':\n\t\t\t\tvar end = source.indexOf('>',tagStart+3);\n\t\t\t\tvar tagName = source.substring(tagStart + 2, end).replace(/[ \\t\\n\\r]+$/g, '');\n\t\t\t\tvar config = parseStack.pop();\n\t\t\t\tif(end<0){\n\n\t \t\ttagName = source.substring(tagStart+2).replace(/[\\s<].*/,'');\n\t \t\terrorHandler.error(\"end tag name: \"+tagName+' is not complete:'+config.tagName);\n\t \t\tend = tagStart+1+tagName.length;\n\t \t}else if(tagName.match(/\\s\n\t\t\t\tlocator&&position(tagStart);\n\t\t\t\tend = parseInstruction(source,tagStart,domBuilder);\n\t\t\t\tbreak;\n\t\t\tcase '!':// start){\n\t\t\tstart = end;\n\t\t}else{\n\t\t\t//TODO: \u8FD9\u91CC\u6709\u53EF\u80FDsax\u56DE\u9000\uFF0C\u6709\u4F4D\u7F6E\u9519\u8BEF\u98CE\u9669\n\t\t\tappendText(Math.max(tagStart,start)+1);\n\t\t}\n\t}\n}\nfunction copyLocator(f,t){\n\tt.lineNumber = f.lineNumber;\n\tt.columnNumber = f.columnNumber;\n\treturn t;\n}\n\n/**\n * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);\n * @return end of the elementStartPart(end of elementEndPart for selfClosed el)\n */\nfunction parseElementStartPart(source,start,el,currentNSMap,entityReplacer,errorHandler){\n\n\t/**\n\t * @param {string} qname\n\t * @param {string} value\n\t * @param {number} startIndex\n\t */\n\tfunction addAttribute(qname, value, startIndex) {\n\t\tif (el.attributeNames.hasOwnProperty(qname)) {\n\t\t\terrorHandler.fatalError('Attribute ' + qname + ' redefined')\n\t\t}\n\t\tel.addValue(\n\t\t\tqname,\n\t\t\t// @see https://www.w3.org/TR/xml/#AVNormalize\n\t\t\t// since the xmldom sax parser does not \"interpret\" DTD the following is not implemented:\n\t\t\t// - recursive replacement of (DTD) entity references\n\t\t\t// - trimming and collapsing multiple spaces into a single one for attributes that are not of type CDATA\n\t\t\tvalue.replace(/[\\t\\n\\r]/g, ' ').replace(/&#?\\w+;/g, entityReplacer),\n\t\t\tstartIndex\n\t\t)\n\t}\n\tvar attrName;\n\tvar value;\n\tvar p = ++start;\n\tvar s = S_TAG;//status\n\twhile(true){\n\t\tvar c = source.charAt(p);\n\t\tswitch(c){\n\t\tcase '=':\n\t\t\tif(s === S_ATTR){//attrName\n\t\t\t\tattrName = source.slice(start,p);\n\t\t\t\ts = S_EQ;\n\t\t\t}else if(s === S_ATTR_SPACE){\n\t\t\t\ts = S_EQ;\n\t\t\t}else{\n\t\t\t\t//fatalError: equal must after attrName or space after attrName\n\t\t\t\tthrow new Error('attribute equal must after attrName'); // No known test case\n\t\t\t}\n\t\t\tbreak;\n\t\tcase '\\'':\n\t\tcase '\"':\n\t\t\tif(s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE\n\t\t\t\t){//equal\n\t\t\t\tif(s === S_ATTR){\n\t\t\t\t\terrorHandler.warning('attribute value must after \"=\"')\n\t\t\t\t\tattrName = source.slice(start,p)\n\t\t\t\t}\n\t\t\t\tstart = p+1;\n\t\t\t\tp = source.indexOf(c,start)\n\t\t\t\tif(p>0){\n\t\t\t\t\tvalue = source.slice(start, p);\n\t\t\t\t\taddAttribute(attrName, value, start-1);\n\t\t\t\t\ts = S_ATTR_END;\n\t\t\t\t}else{\n\t\t\t\t\t//fatalError: no end quot match\n\t\t\t\t\tthrow new Error('attribute value no end \\''+c+'\\' match');\n\t\t\t\t}\n\t\t\t}else if(s == S_ATTR_NOQUOT_VALUE){\n\t\t\t\tvalue = source.slice(start, p);\n\t\t\t\taddAttribute(attrName, value, start);\n\t\t\t\terrorHandler.warning('attribute \"'+attrName+'\" missed start quot('+c+')!!');\n\t\t\t\tstart = p+1;\n\t\t\t\ts = S_ATTR_END\n\t\t\t}else{\n\t\t\t\t//fatalError: no equal before\n\t\t\t\tthrow new Error('attribute value must after \"=\"'); // No known test case\n\t\t\t}\n\t\t\tbreak;\n\t\tcase '/':\n\t\t\tswitch(s){\n\t\t\tcase S_TAG:\n\t\t\t\tel.setTagName(source.slice(start,p));\n\t\t\tcase S_ATTR_END:\n\t\t\tcase S_TAG_SPACE:\n\t\t\tcase S_TAG_CLOSE:\n\t\t\t\ts =S_TAG_CLOSE;\n\t\t\t\tel.closed = true;\n\t\t\tcase S_ATTR_NOQUOT_VALUE:\n\t\t\tcase S_ATTR:\n\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR_SPACE:\n\t\t\t\t\tel.closed = true;\n\t\t\t\tbreak;\n\t\t\t//case S_EQ:\n\t\t\tdefault:\n\t\t\t\tthrow new Error(\"attribute invalid close char('/')\") // No known test case\n\t\t\t}\n\t\t\tbreak;\n\t\tcase ''://end document\n\t\t\terrorHandler.error('unexpected end of input');\n\t\t\tif(s == S_TAG){\n\t\t\t\tel.setTagName(source.slice(start,p));\n\t\t\t}\n\t\t\treturn p;\n\t\tcase '>':\n\t\t\tswitch(s){\n\t\t\tcase S_TAG:\n\t\t\t\tel.setTagName(source.slice(start,p));\n\t\t\tcase S_ATTR_END:\n\t\t\tcase S_TAG_SPACE:\n\t\t\tcase S_TAG_CLOSE:\n\t\t\t\tbreak;//normal\n\t\t\tcase S_ATTR_NOQUOT_VALUE://Compatible state\n\t\t\tcase S_ATTR:\n\t\t\t\tvalue = source.slice(start,p);\n\t\t\t\tif(value.slice(-1) === '/'){\n\t\t\t\t\tel.closed = true;\n\t\t\t\t\tvalue = value.slice(0,-1)\n\t\t\t\t}\n\t\t\tcase S_ATTR_SPACE:\n\t\t\t\tif(s === S_ATTR_SPACE){\n\t\t\t\t\tvalue = attrName;\n\t\t\t\t}\n\t\t\t\tif(s == S_ATTR_NOQUOT_VALUE){\n\t\t\t\t\terrorHandler.warning('attribute \"'+value+'\" missed quot(\")!');\n\t\t\t\t\taddAttribute(attrName, value, start)\n\t\t\t\t}else{\n\t\t\t\t\tif(!NAMESPACE.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)){\n\t\t\t\t\t\terrorHandler.warning('attribute \"'+value+'\" missed value!! \"'+value+'\" instead!!')\n\t\t\t\t\t}\n\t\t\t\t\taddAttribute(value, value, start)\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase S_EQ:\n\t\t\t\tthrow new Error('attribute value missed!!');\n\t\t\t}\n//\t\t\tconsole.log(tagName,tagNamePattern,tagNamePattern.test(tagName))\n\t\t\treturn p;\n\t\t/*xml space '\\x20' | #x9 | #xD | #xA; */\n\t\tcase '\\u0080':\n\t\t\tc = ' ';\n\t\tdefault:\n\t\t\tif(c<= ' '){//space\n\t\t\t\tswitch(s){\n\t\t\t\tcase S_TAG:\n\t\t\t\t\tel.setTagName(source.slice(start,p));//tagName\n\t\t\t\t\ts = S_TAG_SPACE;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR:\n\t\t\t\t\tattrName = source.slice(start,p)\n\t\t\t\t\ts = S_ATTR_SPACE;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR_NOQUOT_VALUE:\n\t\t\t\t\tvar value = source.slice(start, p);\n\t\t\t\t\terrorHandler.warning('attribute \"'+value+'\" missed quot(\")!!');\n\t\t\t\t\taddAttribute(attrName, value, start)\n\t\t\t\tcase S_ATTR_END:\n\t\t\t\t\ts = S_TAG_SPACE;\n\t\t\t\t\tbreak;\n\t\t\t\t//case S_TAG_SPACE:\n\t\t\t\t//case S_EQ:\n\t\t\t\t//case S_ATTR_SPACE:\n\t\t\t\t//\tvoid();break;\n\t\t\t\t//case S_TAG_CLOSE:\n\t\t\t\t\t//ignore warning\n\t\t\t\t}\n\t\t\t}else{//not space\n//S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n//S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\n\t\t\t\tswitch(s){\n\t\t\t\t//case S_TAG:void();break;\n\t\t\t\t//case S_ATTR:void();break;\n\t\t\t\t//case S_ATTR_NOQUOT_VALUE:void();break;\n\t\t\t\tcase S_ATTR_SPACE:\n\t\t\t\t\tvar tagName = el.tagName;\n\t\t\t\t\tif (!NAMESPACE.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {\n\t\t\t\t\t\terrorHandler.warning('attribute \"'+attrName+'\" missed value!! \"'+attrName+'\" instead2!!')\n\t\t\t\t\t}\n\t\t\t\t\taddAttribute(attrName, attrName, start);\n\t\t\t\t\tstart = p;\n\t\t\t\t\ts = S_ATTR;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR_END:\n\t\t\t\t\terrorHandler.warning('attribute space is required\"'+attrName+'\"!!')\n\t\t\t\tcase S_TAG_SPACE:\n\t\t\t\t\ts = S_ATTR;\n\t\t\t\t\tstart = p;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_EQ:\n\t\t\t\t\ts = S_ATTR_NOQUOT_VALUE;\n\t\t\t\t\tstart = p;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_TAG_CLOSE:\n\t\t\t\t\tthrow new Error(\"elements closed character '/' and '>' must be connected to\");\n\t\t\t\t}\n\t\t\t}\n\t\t}//end outer switch\n\t\t//console.log('p++',p)\n\t\tp++;\n\t}\n}\n/**\n * @return true if has new namespace define\n */\nfunction appendElement(el,domBuilder,currentNSMap){\n\tvar tagName = el.tagName;\n\tvar localNSMap = null;\n\t//var currentNSMap = parseStack[parseStack.length-1].currentNSMap;\n\tvar i = el.length;\n\twhile(i--){\n\t\tvar a = el[i];\n\t\tvar qName = a.qName;\n\t\tvar value = a.value;\n\t\tvar nsp = qName.indexOf(':');\n\t\tif(nsp>0){\n\t\t\tvar prefix = a.prefix = qName.slice(0,nsp);\n\t\t\tvar localName = qName.slice(nsp+1);\n\t\t\tvar nsPrefix = prefix === 'xmlns' && localName\n\t\t}else{\n\t\t\tlocalName = qName;\n\t\t\tprefix = null\n\t\t\tnsPrefix = qName === 'xmlns' && ''\n\t\t}\n\t\t//can not set prefix,because prefix !== ''\n\t\ta.localName = localName ;\n\t\t//prefix == null for no ns prefix attribute\n\t\tif(nsPrefix !== false){//hack!!\n\t\t\tif(localNSMap == null){\n\t\t\t\tlocalNSMap = {}\n\t\t\t\t//console.log(currentNSMap,0)\n\t\t\t\t_copy(currentNSMap,currentNSMap={})\n\t\t\t\t//console.log(currentNSMap,1)\n\t\t\t}\n\t\t\tcurrentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;\n\t\t\ta.uri = NAMESPACE.XMLNS\n\t\t\tdomBuilder.startPrefixMapping(nsPrefix, value)\n\t\t}\n\t}\n\tvar i = el.length;\n\twhile(i--){\n\t\ta = el[i];\n\t\tvar prefix = a.prefix;\n\t\tif(prefix){//no prefix attribute has no namespace\n\t\t\tif(prefix === 'xml'){\n\t\t\t\ta.uri = NAMESPACE.XML;\n\t\t\t}if(prefix !== 'xmlns'){\n\t\t\t\ta.uri = currentNSMap[prefix || '']\n\n\t\t\t\t//{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}\n\t\t\t}\n\t\t}\n\t}\n\tvar nsp = tagName.indexOf(':');\n\tif(nsp>0){\n\t\tprefix = el.prefix = tagName.slice(0,nsp);\n\t\tlocalName = el.localName = tagName.slice(nsp+1);\n\t}else{\n\t\tprefix = null;//important!!\n\t\tlocalName = el.localName = tagName;\n\t}\n\t//no prefix element has default namespace\n\tvar ns = el.uri = currentNSMap[prefix || ''];\n\tdomBuilder.startElement(ns,localName,tagName,el);\n\t//endPrefixMapping and startPrefixMapping have not any help for dom builder\n\t//localNSMap = null\n\tif(el.closed){\n\t\tdomBuilder.endElement(ns,localName,tagName);\n\t\tif(localNSMap){\n\t\t\tfor (prefix in localNSMap) {\n\t\t\t\tif (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {\n\t\t\t\t\tdomBuilder.endPrefixMapping(prefix);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}else{\n\t\tel.currentNSMap = currentNSMap;\n\t\tel.localNSMap = localNSMap;\n\t\t//parseStack.push(el);\n\t\treturn true;\n\t}\n}\nfunction parseHtmlSpecialContent(source,elStartEnd,tagName,entityReplacer,domBuilder){\n\tif(/^(?:script|textarea)$/i.test(tagName)){\n\t\tvar elEndStart = source.indexOf('',elStartEnd);\n\t\tvar text = source.substring(elStartEnd+1,elEndStart);\n\t\tif(/[&<]/.test(text)){\n\t\t\tif(/^script$/i.test(tagName)){\n\t\t\t\t//if(!/\\]\\]>/.test(text)){\n\t\t\t\t\t//lexHandler.startCDATA();\n\t\t\t\t\tdomBuilder.characters(text,0,text.length);\n\t\t\t\t\t//lexHandler.endCDATA();\n\t\t\t\t\treturn elEndStart;\n\t\t\t\t//}\n\t\t\t}//}else{//text area\n\t\t\t\ttext = text.replace(/&#?\\w+;/g,entityReplacer);\n\t\t\t\tdomBuilder.characters(text,0,text.length);\n\t\t\t\treturn elEndStart;\n\t\t\t//}\n\n\t\t}\n\t}\n\treturn elStartEnd+1;\n}\nfunction fixSelfClosed(source,elStartEnd,tagName,closeMap){\n\t//if(tagName in closeMap){\n\tvar pos = closeMap[tagName];\n\tif(pos == null){\n\t\t//console.log(tagName)\n\t\tpos = source.lastIndexOf('')\n\t\tif(pos',start+4);\n\t\t\t//append comment source.substring(4,end)//\", \"g\")\n\nconst serializers = {\n \"application/json\": function(serializable) {\n let document\n if (serializable instanceof Document) {\n document = serializable\n } else if (serializable instanceof HTMLElement) {\n document = HTMLParser.parse(serializable.innerHTML).getDocument()\n } else {\n throw new Error(\"unserializable object\")\n }\n\n return document.toSerializableDocument().toJSONString()\n },\n\n \"text/html\": function(serializable) {\n let element\n if (serializable instanceof Document) {\n element = DocumentView.render(serializable)\n } else if (serializable instanceof HTMLElement) {\n element = serializable.cloneNode(true)\n } else {\n throw new Error(\"unserializable object\")\n }\n\n // Remove unserializable elements\n Array.from(element.querySelectorAll(unserializableElementSelector)).forEach((el) => {\n removeNode(el)\n })\n\n // Remove unserializable attributes\n unserializableAttributeNames.forEach((attribute) => {\n Array.from(element.querySelectorAll(`[${attribute}]`)).forEach((el) => {\n el.removeAttribute(attribute)\n })\n })\n\n // Rewrite elements with serialized attribute overrides\n Array.from(element.querySelectorAll(serializedAttributesSelector)).forEach((el) => {\n try {\n const attributes = JSON.parse(el.getAttribute(serializedAttributesAttribute))\n el.removeAttribute(serializedAttributesAttribute)\n for (const name in attributes) {\n const value = attributes[name]\n el.setAttribute(name, value)\n }\n } catch (error) {}\n })\n\n return element.innerHTML.replace(blockCommentPattern, \"\")\n },\n}\n\nconst deserializers = {\n \"application/json\": function(string) {\n return Document.fromJSONString(string)\n },\n\n \"text/html\": function(string) {\n return HTMLParser.parse(string).getDocument()\n },\n}\n\nexport const serializeToContentType = function(serializable, contentType) {\n const serializer = serializers[contentType]\n if (serializer) {\n return serializer(serializable)\n } else {\n throw new Error(`unknown content type: ${contentType}`)\n }\n}\n\nexport const deserializeFromContentType = function(string, contentType) {\n const deserializer = deserializers[contentType]\n if (deserializer) {\n return deserializer(string)\n } else {\n throw new Error(`unknown content type: ${contentType}`)\n }\n}\n", "import \"trix/models/attachment\"\nimport BasicObject from \"trix/core/basic_object\"\n\nexport default class ManagedAttachment extends BasicObject {\n constructor(attachmentManager, attachment) {\n super(...arguments)\n this.attachmentManager = attachmentManager\n this.attachment = attachment\n this.id = this.attachment.id\n this.file = this.attachment.file\n }\n\n remove() {\n return this.attachmentManager.requestRemovalOfAttachment(this.attachment)\n }\n}\n\nManagedAttachment.proxyMethod(\"attachment.getAttribute\")\nManagedAttachment.proxyMethod(\"attachment.hasAttribute\")\nManagedAttachment.proxyMethod(\"attachment.setAttribute\")\nManagedAttachment.proxyMethod(\"attachment.getAttributes\")\nManagedAttachment.proxyMethod(\"attachment.setAttributes\")\nManagedAttachment.proxyMethod(\"attachment.isPending\")\nManagedAttachment.proxyMethod(\"attachment.isPreviewable\")\nManagedAttachment.proxyMethod(\"attachment.getURL\")\nManagedAttachment.proxyMethod(\"attachment.getHref\")\nManagedAttachment.proxyMethod(\"attachment.getFilename\")\nManagedAttachment.proxyMethod(\"attachment.getFilesize\")\nManagedAttachment.proxyMethod(\"attachment.getFormattedFilesize\")\nManagedAttachment.proxyMethod(\"attachment.getExtension\")\nManagedAttachment.proxyMethod(\"attachment.getContentType\")\nManagedAttachment.proxyMethod(\"attachment.getFile\")\nManagedAttachment.proxyMethod(\"attachment.setFile\")\nManagedAttachment.proxyMethod(\"attachment.releaseFile\")\nManagedAttachment.proxyMethod(\"attachment.getUploadProgress\")\nManagedAttachment.proxyMethod(\"attachment.setUploadProgress\")\n\n", "import ManagedAttachment from \"trix/models/managed_attachment\"\nimport BasicObject from \"trix/core/basic_object\"\n\nexport default class AttachmentManager extends BasicObject {\n constructor(attachments = []) {\n super(...arguments)\n this.managedAttachments = {}\n Array.from(attachments).forEach((attachment) => {\n this.manageAttachment(attachment)\n })\n }\n\n getAttachments() {\n const result = []\n for (const id in this.managedAttachments) {\n const attachment = this.managedAttachments[id]\n result.push(attachment)\n }\n return result\n }\n\n manageAttachment(attachment) {\n if (!this.managedAttachments[attachment.id]) {\n this.managedAttachments[attachment.id] = new ManagedAttachment(this, attachment)\n }\n return this.managedAttachments[attachment.id]\n }\n\n attachmentIsManaged(attachment) {\n return attachment.id in this.managedAttachments\n }\n\n requestRemovalOfAttachment(attachment) {\n if (this.attachmentIsManaged(attachment)) {\n return this.delegate?.attachmentManagerDidRequestRemovalOfAttachment?.(attachment)\n }\n }\n\n unmanageAttachment(attachment) {\n const managedAttachment = this.managedAttachments[attachment.id]\n delete this.managedAttachments[attachment.id]\n return managedAttachment\n }\n}\n", "export default class LineBreakInsertion {\n constructor(composition) {\n this.composition = composition\n this.document = this.composition.document\n const selectedRange = this.composition.getSelectedRange()\n this.startPosition = selectedRange[0]\n this.endPosition = selectedRange[1]\n\n this.startLocation = this.document.locationFromPosition(this.startPosition)\n this.endLocation = this.document.locationFromPosition(this.endPosition)\n\n this.block = this.document.getBlockAtIndex(this.endLocation.index)\n this.breaksOnReturn = this.block.breaksOnReturn()\n this.previousCharacter = this.block.text.getStringAtPosition(this.endLocation.offset - 1)\n this.nextCharacter = this.block.text.getStringAtPosition(this.endLocation.offset)\n }\n\n shouldInsertBlockBreak() {\n if (this.block.hasAttributes() && this.block.isListItem() && !this.block.isEmpty()) {\n return this.startLocation.offset !== 0\n } else {\n return this.breaksOnReturn && this.nextCharacter !== \"\\n\"\n }\n }\n\n shouldBreakFormattedBlock() {\n return (\n this.block.hasAttributes() &&\n !this.block.isListItem() &&\n (this.breaksOnReturn && this.nextCharacter === \"\\n\" || this.previousCharacter === \"\\n\")\n )\n }\n\n shouldDecreaseListLevel() {\n return this.block.hasAttributes() && this.block.isListItem() && this.block.isEmpty()\n }\n\n shouldPrependListItem() {\n return this.block.isListItem() && this.startLocation.offset === 0 && !this.block.isEmpty()\n }\n\n shouldRemoveLastBlockAttribute() {\n return this.block.hasAttributes() && !this.block.isListItem() && this.block.isEmpty()\n }\n}\n", "import * as config from \"trix/config\"\nimport { OBJECT_REPLACEMENT_CHARACTER } from \"trix/constants\"\n\nimport BasicObject from \"trix/core/basic_object\"\nimport Text from \"trix/models/text\"\nimport Block from \"trix/models/block\"\nimport Attachment from \"trix/models/attachment\"\nimport Document from \"trix/models/document\"\nimport HTMLParser from \"trix/models/html_parser\"\nimport LineBreakInsertion from \"trix/models/line_break_insertion\"\n\nimport {\n arrayStartsWith,\n extend,\n getAllAttributeNames,\n getBlockConfig,\n getTextConfig,\n normalizeRange,\n objectsAreEqual,\n rangeIsCollapsed,\n rangesAreEqual,\n summarizeArrayChange,\n} from \"trix/core/helpers\"\n\nconst PLACEHOLDER = \" \"\n\nexport default class Composition extends BasicObject {\n constructor() {\n super(...arguments)\n this.document = new Document()\n this.attachments = []\n this.currentAttributes = {}\n this.revision = 0\n }\n\n setDocument(document) {\n if (!document.isEqualTo(this.document)) {\n this.document = document\n this.refreshAttachments()\n this.revision++\n return this.delegate?.compositionDidChangeDocument?.(document)\n }\n }\n\n // Snapshots\n\n getSnapshot() {\n return {\n document: this.document,\n selectedRange: this.getSelectedRange(),\n }\n }\n\n loadSnapshot({ document, selectedRange }) {\n this.delegate?.compositionWillLoadSnapshot?.()\n this.setDocument(document != null ? document : new Document())\n this.setSelection(selectedRange != null ? selectedRange : [ 0, 0 ])\n return this.delegate?.compositionDidLoadSnapshot?.()\n }\n\n // Responder protocol\n\n insertText(text, { updatePosition } = { updatePosition: true }) {\n const selectedRange = this.getSelectedRange()\n this.setDocument(this.document.insertTextAtRange(text, selectedRange))\n\n const startPosition = selectedRange[0]\n const endPosition = startPosition + text.getLength()\n\n if (updatePosition) {\n this.setSelection(endPosition)\n }\n return this.notifyDelegateOfInsertionAtRange([ startPosition, endPosition ])\n }\n\n insertBlock(block = new Block()) {\n const document = new Document([ block ])\n return this.insertDocument(document)\n }\n\n insertDocument(document = new Document()) {\n const selectedRange = this.getSelectedRange()\n this.setDocument(this.document.insertDocumentAtRange(document, selectedRange))\n\n const startPosition = selectedRange[0]\n const endPosition = startPosition + document.getLength()\n\n this.setSelection(endPosition)\n return this.notifyDelegateOfInsertionAtRange([ startPosition, endPosition ])\n }\n\n insertString(string, options) {\n const attributes = this.getCurrentTextAttributes()\n const text = Text.textForStringWithAttributes(string, attributes)\n return this.insertText(text, options)\n }\n\n insertBlockBreak() {\n const selectedRange = this.getSelectedRange()\n this.setDocument(this.document.insertBlockBreakAtRange(selectedRange))\n\n const startPosition = selectedRange[0]\n const endPosition = startPosition + 1\n\n this.setSelection(endPosition)\n return this.notifyDelegateOfInsertionAtRange([ startPosition, endPosition ])\n }\n\n insertLineBreak() {\n const insertion = new LineBreakInsertion(this)\n\n if (insertion.shouldDecreaseListLevel()) {\n this.decreaseListLevel()\n return this.setSelection(insertion.startPosition)\n } else if (insertion.shouldPrependListItem()) {\n const document = new Document([ insertion.block.copyWithoutText() ])\n return this.insertDocument(document)\n } else if (insertion.shouldInsertBlockBreak()) {\n return this.insertBlockBreak()\n } else if (insertion.shouldRemoveLastBlockAttribute()) {\n return this.removeLastBlockAttribute()\n } else if (insertion.shouldBreakFormattedBlock()) {\n return this.breakFormattedBlock(insertion)\n } else {\n return this.insertString(\"\\n\")\n }\n }\n\n insertHTML(html) {\n const document = HTMLParser.parse(html).getDocument()\n const selectedRange = this.getSelectedRange()\n\n this.setDocument(this.document.mergeDocumentAtRange(document, selectedRange))\n\n const startPosition = selectedRange[0]\n const endPosition = startPosition + document.getLength() - 1\n\n this.setSelection(endPosition)\n return this.notifyDelegateOfInsertionAtRange([ startPosition, endPosition ])\n }\n\n replaceHTML(html) {\n const document = HTMLParser.parse(html).getDocument().copyUsingObjectsFromDocument(this.document)\n const locationRange = this.getLocationRange({ strict: false })\n const selectedRange = this.document.rangeFromLocationRange(locationRange)\n this.setDocument(document)\n return this.setSelection(selectedRange)\n }\n\n insertFile(file) {\n return this.insertFiles([ file ])\n }\n\n insertFiles(files) {\n const attachments = []\n\n Array.from(files).forEach((file) => {\n if (this.delegate?.compositionShouldAcceptFile(file)) {\n const attachment = Attachment.attachmentForFile(file)\n attachments.push(attachment)\n }\n })\n\n return this.insertAttachments(attachments)\n }\n\n insertAttachment(attachment) {\n return this.insertAttachments([ attachment ])\n }\n\n insertAttachments(attachments) {\n let text = new Text()\n\n Array.from(attachments).forEach((attachment) => {\n const type = attachment.getType()\n const presentation = config.attachments[type]?.presentation\n\n const attributes = this.getCurrentTextAttributes()\n if (presentation) {\n attributes.presentation = presentation\n }\n\n const attachmentText = Text.textForAttachmentWithAttributes(attachment, attributes)\n text = text.appendText(attachmentText)\n })\n\n return this.insertText(text)\n }\n\n shouldManageDeletingInDirection(direction) {\n const locationRange = this.getLocationRange()\n if (rangeIsCollapsed(locationRange)) {\n if (direction === \"backward\" && locationRange[0].offset === 0) {\n return true\n }\n if (this.shouldManageMovingCursorInDirection(direction)) {\n return true\n }\n } else {\n if (locationRange[0].index !== locationRange[1].index) {\n return true\n }\n }\n return false\n }\n\n deleteInDirection(direction, { length } = {}) {\n let attachment, deletingIntoPreviousBlock, selectionSpansBlocks\n const locationRange = this.getLocationRange()\n let range = this.getSelectedRange()\n const selectionIsCollapsed = rangeIsCollapsed(range)\n\n if (selectionIsCollapsed) {\n deletingIntoPreviousBlock = direction === \"backward\" && locationRange[0].offset === 0\n } else {\n selectionSpansBlocks = locationRange[0].index !== locationRange[1].index\n }\n\n if (deletingIntoPreviousBlock) {\n if (this.canDecreaseBlockAttributeLevel()) {\n const block = this.getBlock()\n\n if (block.isListItem()) {\n this.decreaseListLevel()\n } else {\n this.decreaseBlockAttributeLevel()\n }\n\n this.setSelection(range[0])\n if (block.isEmpty()) {\n return false\n }\n }\n }\n\n if (selectionIsCollapsed) {\n range = this.getExpandedRangeInDirection(direction, { length })\n if (direction === \"backward\") {\n attachment = this.getAttachmentAtRange(range)\n }\n }\n\n if (attachment) {\n this.editAttachment(attachment)\n return false\n } else {\n this.setDocument(this.document.removeTextAtRange(range))\n this.setSelection(range[0])\n if (deletingIntoPreviousBlock || selectionSpansBlocks) {\n return false\n }\n }\n }\n\n moveTextFromRange(range) {\n const [ position ] = Array.from(this.getSelectedRange())\n this.setDocument(this.document.moveTextFromRangeToPosition(range, position))\n return this.setSelection(position)\n }\n\n removeAttachment(attachment) {\n const range = this.document.getRangeOfAttachment(attachment)\n if (range) {\n this.stopEditingAttachment()\n this.setDocument(this.document.removeTextAtRange(range))\n return this.setSelection(range[0])\n }\n }\n\n removeLastBlockAttribute() {\n const [ startPosition, endPosition ] = Array.from(this.getSelectedRange())\n const block = this.document.getBlockAtPosition(endPosition)\n this.removeCurrentAttribute(block.getLastAttribute())\n return this.setSelection(startPosition)\n }\n\n insertPlaceholder() {\n this.placeholderPosition = this.getPosition()\n return this.insertString(PLACEHOLDER)\n }\n\n selectPlaceholder() {\n if (this.placeholderPosition != null) {\n this.setSelectedRange([ this.placeholderPosition, this.placeholderPosition + PLACEHOLDER.length ])\n return this.getSelectedRange()\n }\n }\n\n forgetPlaceholder() {\n this.placeholderPosition = null\n }\n\n // Current attributes\n\n hasCurrentAttribute(attributeName) {\n const value = this.currentAttributes[attributeName]\n return value != null && value !== false\n }\n\n toggleCurrentAttribute(attributeName) {\n const value = !this.currentAttributes[attributeName]\n if (value) {\n return this.setCurrentAttribute(attributeName, value)\n } else {\n return this.removeCurrentAttribute(attributeName)\n }\n }\n\n canSetCurrentAttribute(attributeName) {\n if (getBlockConfig(attributeName)) {\n return this.canSetCurrentBlockAttribute(attributeName)\n } else {\n return this.canSetCurrentTextAttribute(attributeName)\n }\n }\n\n canSetCurrentTextAttribute(attributeName) {\n const document = this.getSelectedDocument()\n if (!document) return\n for (const attachment of Array.from(document.getAttachments())) {\n if (!attachment.hasContent()) {\n return false\n }\n }\n return true\n }\n\n canSetCurrentBlockAttribute(attributeName) {\n const block = this.getBlock()\n if (!block) return\n return !block.isTerminalBlock()\n }\n\n setCurrentAttribute(attributeName, value) {\n if (getBlockConfig(attributeName)) {\n return this.setBlockAttribute(attributeName, value)\n } else {\n this.setTextAttribute(attributeName, value)\n this.currentAttributes[attributeName] = value\n return this.notifyDelegateOfCurrentAttributesChange()\n }\n }\n\n setHTMLAtributeAtPosition(position, attributeName, value) {\n const block = this.document.getBlockAtPosition(position)\n const allowedHTMLAttributes = getBlockConfig(block.getLastAttribute())?.htmlAttributes\n\n if (block && allowedHTMLAttributes?.includes(attributeName)) {\n const newDocument = this.document.setHTMLAttributeAtPosition(position, attributeName, value)\n this.setDocument(newDocument)\n }\n }\n\n setTextAttribute(attributeName, value) {\n const selectedRange = this.getSelectedRange()\n if (!selectedRange) return\n\n const [ startPosition, endPosition ] = Array.from(selectedRange)\n if (startPosition === endPosition) {\n if (attributeName === \"href\") {\n const text = Text.textForStringWithAttributes(value, { href: value })\n return this.insertText(text)\n }\n } else {\n return this.setDocument(this.document.addAttributeAtRange(attributeName, value, selectedRange))\n }\n }\n\n setBlockAttribute(attributeName, value) {\n const selectedRange = this.getSelectedRange()\n if (this.canSetCurrentAttribute(attributeName)) {\n this.setDocument(this.document.applyBlockAttributeAtRange(attributeName, value, selectedRange))\n return this.setSelection(selectedRange)\n }\n }\n\n removeCurrentAttribute(attributeName) {\n if (getBlockConfig(attributeName)) {\n this.removeBlockAttribute(attributeName)\n return this.updateCurrentAttributes()\n } else {\n this.removeTextAttribute(attributeName)\n delete this.currentAttributes[attributeName]\n return this.notifyDelegateOfCurrentAttributesChange()\n }\n }\n\n removeTextAttribute(attributeName) {\n const selectedRange = this.getSelectedRange()\n if (!selectedRange) return\n return this.setDocument(this.document.removeAttributeAtRange(attributeName, selectedRange))\n }\n\n removeBlockAttribute(attributeName) {\n const selectedRange = this.getSelectedRange()\n if (!selectedRange) return\n return this.setDocument(this.document.removeAttributeAtRange(attributeName, selectedRange))\n }\n\n canDecreaseNestingLevel() {\n return this.getBlock()?.getNestingLevel() > 0\n }\n\n canIncreaseNestingLevel() {\n const block = this.getBlock()\n if (!block) return\n if (getBlockConfig(block.getLastNestableAttribute())?.listAttribute) {\n const previousBlock = this.getPreviousBlock()\n if (previousBlock) {\n return arrayStartsWith(previousBlock.getListItemAttributes(), block.getListItemAttributes())\n }\n } else {\n return block.getNestingLevel() > 0\n }\n }\n\n decreaseNestingLevel() {\n const block = this.getBlock()\n if (!block) return\n return this.setDocument(this.document.replaceBlock(block, block.decreaseNestingLevel()))\n }\n\n increaseNestingLevel() {\n const block = this.getBlock()\n if (!block) return\n return this.setDocument(this.document.replaceBlock(block, block.increaseNestingLevel()))\n }\n\n canDecreaseBlockAttributeLevel() {\n return this.getBlock()?.getAttributeLevel() > 0\n }\n\n decreaseBlockAttributeLevel() {\n const attribute = this.getBlock()?.getLastAttribute()\n if (attribute) {\n return this.removeCurrentAttribute(attribute)\n }\n }\n\n decreaseListLevel() {\n let [ startPosition ] = Array.from(this.getSelectedRange())\n const { index } = this.document.locationFromPosition(startPosition)\n let endIndex = index\n const attributeLevel = this.getBlock().getAttributeLevel()\n\n let block = this.document.getBlockAtIndex(endIndex + 1)\n while (block) {\n if (!block.isListItem() || block.getAttributeLevel() <= attributeLevel) {\n break\n }\n endIndex++\n block = this.document.getBlockAtIndex(endIndex + 1)\n }\n\n startPosition = this.document.positionFromLocation({ index, offset: 0 })\n const endPosition = this.document.positionFromLocation({ index: endIndex, offset: 0 })\n return this.setDocument(this.document.removeLastListAttributeAtRange([ startPosition, endPosition ]))\n }\n\n updateCurrentAttributes() {\n const selectedRange = this.getSelectedRange({ ignoreLock: true })\n if (selectedRange) {\n const currentAttributes = this.document.getCommonAttributesAtRange(selectedRange)\n\n Array.from(getAllAttributeNames()).forEach((attributeName) => {\n if (!currentAttributes[attributeName]) {\n if (!this.canSetCurrentAttribute(attributeName)) {\n currentAttributes[attributeName] = false\n }\n }\n })\n\n if (!objectsAreEqual(currentAttributes, this.currentAttributes)) {\n this.currentAttributes = currentAttributes\n return this.notifyDelegateOfCurrentAttributesChange()\n }\n }\n }\n\n getCurrentAttributes() {\n return extend.call({}, this.currentAttributes)\n }\n\n getCurrentTextAttributes() {\n const attributes = {}\n for (const key in this.currentAttributes) {\n const value = this.currentAttributes[key]\n if (value !== false) {\n if (getTextConfig(key)) {\n attributes[key] = value\n }\n }\n }\n return attributes\n }\n\n // Selection freezing\n\n freezeSelection() {\n return this.setCurrentAttribute(\"frozen\", true)\n }\n\n thawSelection() {\n return this.removeCurrentAttribute(\"frozen\")\n }\n\n hasFrozenSelection() {\n return this.hasCurrentAttribute(\"frozen\")\n }\n\n setSelection(selectedRange) {\n const locationRange = this.document.locationRangeFromRange(selectedRange)\n return this.delegate?.compositionDidRequestChangingSelectionToLocationRange(locationRange)\n }\n\n getSelectedRange() {\n const locationRange = this.getLocationRange()\n if (locationRange) {\n return this.document.rangeFromLocationRange(locationRange)\n }\n }\n\n setSelectedRange(selectedRange) {\n const locationRange = this.document.locationRangeFromRange(selectedRange)\n return this.getSelectionManager().setLocationRange(locationRange)\n }\n\n getPosition() {\n const locationRange = this.getLocationRange()\n if (locationRange) {\n return this.document.positionFromLocation(locationRange[0])\n }\n }\n\n getLocationRange(options) {\n if (this.targetLocationRange) {\n return this.targetLocationRange\n } else {\n return this.getSelectionManager().getLocationRange(options) || normalizeRange({ index: 0, offset: 0 })\n }\n }\n\n withTargetLocationRange(locationRange, fn) {\n let result\n this.targetLocationRange = locationRange\n try {\n result = fn()\n } finally {\n this.targetLocationRange = null\n }\n return result\n }\n\n withTargetRange(range, fn) {\n const locationRange = this.document.locationRangeFromRange(range)\n return this.withTargetLocationRange(locationRange, fn)\n }\n\n withTargetDOMRange(domRange, fn) {\n const locationRange = this.createLocationRangeFromDOMRange(domRange, { strict: false })\n return this.withTargetLocationRange(locationRange, fn)\n }\n\n getExpandedRangeInDirection(direction, { length } = {}) {\n let [ startPosition, endPosition ] = Array.from(this.getSelectedRange())\n if (direction === \"backward\") {\n if (length) {\n startPosition -= length\n } else {\n startPosition = this.translateUTF16PositionFromOffset(startPosition, -1)\n }\n } else {\n if (length) {\n endPosition += length\n } else {\n endPosition = this.translateUTF16PositionFromOffset(endPosition, 1)\n }\n }\n return normalizeRange([ startPosition, endPosition ])\n }\n\n shouldManageMovingCursorInDirection(direction) {\n if (this.editingAttachment) {\n return true\n }\n const range = this.getExpandedRangeInDirection(direction)\n return this.getAttachmentAtRange(range) != null\n }\n\n moveCursorInDirection(direction) {\n let canEditAttachment, range\n if (this.editingAttachment) {\n range = this.document.getRangeOfAttachment(this.editingAttachment)\n } else {\n const selectedRange = this.getSelectedRange()\n range = this.getExpandedRangeInDirection(direction)\n canEditAttachment = !rangesAreEqual(selectedRange, range)\n }\n\n if (direction === \"backward\") {\n this.setSelectedRange(range[0])\n } else {\n this.setSelectedRange(range[1])\n }\n\n if (canEditAttachment) {\n const attachment = this.getAttachmentAtRange(range)\n if (attachment) {\n return this.editAttachment(attachment)\n }\n }\n }\n\n expandSelectionInDirection(direction, { length } = {}) {\n const range = this.getExpandedRangeInDirection(direction, { length })\n return this.setSelectedRange(range)\n }\n\n expandSelectionForEditing() {\n if (this.hasCurrentAttribute(\"href\")) {\n return this.expandSelectionAroundCommonAttribute(\"href\")\n }\n }\n\n expandSelectionAroundCommonAttribute(attributeName) {\n const position = this.getPosition()\n const range = this.document.getRangeOfCommonAttributeAtPosition(attributeName, position)\n return this.setSelectedRange(range)\n }\n\n selectionContainsAttachments() {\n return this.getSelectedAttachments()?.length > 0\n }\n\n selectionIsInCursorTarget() {\n return this.editingAttachment || this.positionIsCursorTarget(this.getPosition())\n }\n\n positionIsCursorTarget(position) {\n const location = this.document.locationFromPosition(position)\n if (location) {\n return this.locationIsCursorTarget(location)\n }\n }\n\n positionIsBlockBreak(position) {\n return this.document.getPieceAtPosition(position)?.isBlockBreak()\n }\n\n getSelectedDocument() {\n const selectedRange = this.getSelectedRange()\n if (selectedRange) {\n return this.document.getDocumentAtRange(selectedRange)\n }\n }\n\n getSelectedAttachments() {\n return this.getSelectedDocument()?.getAttachments()\n }\n\n // Attachments\n\n getAttachments() {\n return this.attachments.slice(0)\n }\n\n refreshAttachments() {\n const attachments = this.document.getAttachments()\n const { added, removed } = summarizeArrayChange(this.attachments, attachments)\n this.attachments = attachments\n\n Array.from(removed).forEach((attachment) => {\n attachment.delegate = null\n this.delegate?.compositionDidRemoveAttachment?.(attachment)\n })\n\n return (() => {\n const result = []\n\n Array.from(added).forEach((attachment) => {\n attachment.delegate = this\n result.push(this.delegate?.compositionDidAddAttachment?.(attachment))\n })\n\n return result\n })()\n }\n\n // Attachment delegate\n\n attachmentDidChangeAttributes(attachment) {\n this.revision++\n return this.delegate?.compositionDidEditAttachment?.(attachment)\n }\n\n attachmentDidChangePreviewURL(attachment) {\n this.revision++\n return this.delegate?.compositionDidChangeAttachmentPreviewURL?.(attachment)\n }\n\n // Attachment editing\n\n editAttachment(attachment, options) {\n if (attachment === this.editingAttachment) return\n this.stopEditingAttachment()\n this.editingAttachment = attachment\n return this.delegate?.compositionDidStartEditingAttachment?.(this.editingAttachment, options)\n }\n\n stopEditingAttachment() {\n if (!this.editingAttachment) return\n this.delegate?.compositionDidStopEditingAttachment?.(this.editingAttachment)\n this.editingAttachment = null\n }\n\n updateAttributesForAttachment(attributes, attachment) {\n return this.setDocument(this.document.updateAttributesForAttachment(attributes, attachment))\n }\n\n removeAttributeForAttachment(attribute, attachment) {\n return this.setDocument(this.document.removeAttributeForAttachment(attribute, attachment))\n }\n\n // Private\n\n breakFormattedBlock(insertion) {\n let { document } = insertion\n const { block } = insertion\n let position = insertion.startPosition\n let range = [ position - 1, position ]\n\n if (block.getBlockBreakPosition() === insertion.startLocation.offset) {\n if (block.breaksOnReturn() && insertion.nextCharacter === \"\\n\") {\n position += 1\n } else {\n document = document.removeTextAtRange(range)\n }\n range = [ position, position ]\n } else if (insertion.nextCharacter === \"\\n\") {\n if (insertion.previousCharacter === \"\\n\") {\n range = [ position - 1, position + 1 ]\n } else {\n range = [ position, position + 1 ]\n position += 1\n }\n } else if (insertion.startLocation.offset - 1 !== 0) {\n position += 1\n }\n\n const newDocument = new Document([ block.removeLastAttribute().copyWithoutText() ])\n this.setDocument(document.insertDocumentAtRange(newDocument, range))\n return this.setSelection(position)\n }\n\n getPreviousBlock() {\n const locationRange = this.getLocationRange()\n if (locationRange) {\n const { index } = locationRange[0]\n if (index > 0) {\n return this.document.getBlockAtIndex(index - 1)\n }\n }\n }\n\n getBlock() {\n const locationRange = this.getLocationRange()\n if (locationRange) {\n return this.document.getBlockAtIndex(locationRange[0].index)\n }\n }\n\n getAttachmentAtRange(range) {\n const document = this.document.getDocumentAtRange(range)\n if (document.toString() === `${OBJECT_REPLACEMENT_CHARACTER}\\n`) {\n return document.getAttachments()[0]\n }\n }\n\n notifyDelegateOfCurrentAttributesChange() {\n return this.delegate?.compositionDidChangeCurrentAttributes?.(this.currentAttributes)\n }\n\n notifyDelegateOfInsertionAtRange(range) {\n return this.delegate?.compositionDidPerformInsertionAtRange?.(range)\n }\n\n translateUTF16PositionFromOffset(position, offset) {\n const utf16string = this.document.toUTF16String()\n const utf16position = utf16string.offsetFromUCS2Offset(position)\n return utf16string.offsetToUCS2Offset(utf16position + offset)\n }\n}\n\nComposition.proxyMethod(\"getSelectionManager().getPointRange\")\nComposition.proxyMethod(\"getSelectionManager().setLocationRangeFromPointRange\")\nComposition.proxyMethod(\"getSelectionManager().createLocationRangeFromDOMRange\")\nComposition.proxyMethod(\"getSelectionManager().locationIsCursorTarget\")\nComposition.proxyMethod(\"getSelectionManager().selectionIsExpanded\")\nComposition.proxyMethod(\"delegate?.getSelectionManager\")\n", "import BasicObject from \"trix/core/basic_object\"\n\nexport default class UndoManager extends BasicObject {\n constructor(composition) {\n super(...arguments)\n this.composition = composition\n this.undoEntries = []\n this.redoEntries = []\n }\n\n recordUndoEntry(description, { context, consolidatable } = {}) {\n const previousEntry = this.undoEntries.slice(-1)[0]\n\n if (!consolidatable || !entryHasDescriptionAndContext(previousEntry, description, context)) {\n const undoEntry = this.createEntry({ description, context })\n this.undoEntries.push(undoEntry)\n this.redoEntries = []\n }\n }\n\n undo() {\n const undoEntry = this.undoEntries.pop()\n if (undoEntry) {\n const redoEntry = this.createEntry(undoEntry)\n this.redoEntries.push(redoEntry)\n return this.composition.loadSnapshot(undoEntry.snapshot)\n }\n }\n\n redo() {\n const redoEntry = this.redoEntries.pop()\n if (redoEntry) {\n const undoEntry = this.createEntry(redoEntry)\n this.undoEntries.push(undoEntry)\n return this.composition.loadSnapshot(redoEntry.snapshot)\n }\n }\n\n canUndo() {\n return this.undoEntries.length > 0\n }\n\n canRedo() {\n return this.redoEntries.length > 0\n }\n\n // Private\n\n createEntry({ description, context } = {}) {\n return {\n description: description?.toString(),\n context: JSON.stringify(context),\n snapshot: this.composition.getSnapshot(),\n }\n }\n}\n\nconst entryHasDescriptionAndContext = (entry, description, context) =>\n entry?.description === description?.toString() && entry?.context === JSON.stringify(context)\n", "const BLOCK_ATTRIBUTE_NAME = \"attachmentGallery\"\nconst TEXT_ATTRIBUTE_NAME = \"presentation\"\nconst TEXT_ATTRIBUTE_VALUE = \"gallery\"\n\nexport default class Filter {\n constructor(snapshot) {\n this.document = snapshot.document\n this.selectedRange = snapshot.selectedRange\n }\n\n perform() {\n this.removeBlockAttribute()\n return this.applyBlockAttribute()\n }\n\n getSnapshot() {\n return { document: this.document, selectedRange: this.selectedRange }\n }\n\n // Private\n\n removeBlockAttribute() {\n return this.findRangesOfBlocks().map((range) => this.document = this.document.removeAttributeAtRange(BLOCK_ATTRIBUTE_NAME, range))\n }\n\n applyBlockAttribute() {\n let offset = 0\n\n this.findRangesOfPieces().forEach((range) => {\n if (range[1] - range[0] > 1) {\n range[0] += offset\n range[1] += offset\n\n if (this.document.getCharacterAtPosition(range[1]) !== \"\\n\") {\n this.document = this.document.insertBlockBreakAtRange(range[1])\n if (range[1] < this.selectedRange[1]) {\n this.moveSelectedRangeForward()\n }\n range[1]++\n offset++\n }\n\n if (range[0] !== 0) {\n if (this.document.getCharacterAtPosition(range[0] - 1) !== \"\\n\") {\n this.document = this.document.insertBlockBreakAtRange(range[0])\n if (range[0] < this.selectedRange[0]) {\n this.moveSelectedRangeForward()\n }\n range[0]++\n offset++\n }\n }\n\n this.document = this.document.applyBlockAttributeAtRange(BLOCK_ATTRIBUTE_NAME, true, range)\n }\n })\n }\n\n findRangesOfBlocks() {\n return this.document.findRangesForBlockAttribute(BLOCK_ATTRIBUTE_NAME)\n }\n\n findRangesOfPieces() {\n return this.document.findRangesForTextAttribute(TEXT_ATTRIBUTE_NAME, { withValue: TEXT_ATTRIBUTE_VALUE })\n }\n\n moveSelectedRangeForward() {\n this.selectedRange[0] += 1\n this.selectedRange[1] += 1\n }\n}\n", "import Filter from \"./filter\"\n\nexport const attachmentGalleryFilter = function(snapshot) {\n const filter = new Filter(snapshot)\n filter.perform()\n return filter.getSnapshot()\n}\n\n", "import Document from \"trix/models/document\"\nimport HTMLParser from \"trix/models/html_parser\"\n\nimport UndoManager from \"trix/models/undo_manager\"\nimport { attachmentGalleryFilter } from \"trix/filters/attachment_gallery_filter\"\nconst DEFAULT_FILTERS = [ attachmentGalleryFilter ]\n\nexport default class Editor {\n constructor(composition, selectionManager, element) {\n this.insertFiles = this.insertFiles.bind(this)\n this.composition = composition\n this.selectionManager = selectionManager\n this.element = element\n this.undoManager = new UndoManager(this.composition)\n this.filters = DEFAULT_FILTERS.slice(0)\n }\n\n loadDocument(document) {\n return this.loadSnapshot({ document, selectedRange: [ 0, 0 ] })\n }\n\n loadHTML(html = \"\") {\n const document = HTMLParser.parse(html, { referenceElement: this.element }).getDocument()\n return this.loadDocument(document)\n }\n\n loadJSON({ document, selectedRange }) {\n document = Document.fromJSON(document)\n return this.loadSnapshot({ document, selectedRange })\n }\n\n loadSnapshot(snapshot) {\n this.undoManager = new UndoManager(this.composition)\n return this.composition.loadSnapshot(snapshot)\n }\n\n getDocument() {\n return this.composition.document\n }\n\n getSelectedDocument() {\n return this.composition.getSelectedDocument()\n }\n\n getSnapshot() {\n return this.composition.getSnapshot()\n }\n\n toJSON() {\n return this.getSnapshot()\n }\n\n // Document manipulation\n\n deleteInDirection(direction) {\n return this.composition.deleteInDirection(direction)\n }\n\n insertAttachment(attachment) {\n return this.composition.insertAttachment(attachment)\n }\n\n insertAttachments(attachments) {\n return this.composition.insertAttachments(attachments)\n }\n\n insertDocument(document) {\n return this.composition.insertDocument(document)\n }\n\n insertFile(file) {\n return this.composition.insertFile(file)\n }\n\n insertFiles(files) {\n return this.composition.insertFiles(files)\n }\n\n insertHTML(html) {\n return this.composition.insertHTML(html)\n }\n\n insertString(string) {\n return this.composition.insertString(string)\n }\n\n insertText(text) {\n return this.composition.insertText(text)\n }\n\n insertLineBreak() {\n return this.composition.insertLineBreak()\n }\n\n // Selection\n\n getSelectedRange() {\n return this.composition.getSelectedRange()\n }\n\n getPosition() {\n return this.composition.getPosition()\n }\n\n getClientRectAtPosition(position) {\n const locationRange = this.getDocument().locationRangeFromRange([ position, position + 1 ])\n return this.selectionManager.getClientRectAtLocationRange(locationRange)\n }\n\n expandSelectionInDirection(direction) {\n return this.composition.expandSelectionInDirection(direction)\n }\n\n moveCursorInDirection(direction) {\n return this.composition.moveCursorInDirection(direction)\n }\n\n setSelectedRange(selectedRange) {\n return this.composition.setSelectedRange(selectedRange)\n }\n\n // Attributes\n\n activateAttribute(name, value = true) {\n return this.composition.setCurrentAttribute(name, value)\n }\n\n attributeIsActive(name) {\n return this.composition.hasCurrentAttribute(name)\n }\n\n canActivateAttribute(name) {\n return this.composition.canSetCurrentAttribute(name)\n }\n\n deactivateAttribute(name) {\n return this.composition.removeCurrentAttribute(name)\n }\n\n // HTML attributes\n setHTMLAtributeAtPosition(position, name, value) {\n this.composition.setHTMLAtributeAtPosition(position, name, value)\n }\n\n // Nesting level\n\n canDecreaseNestingLevel() {\n return this.composition.canDecreaseNestingLevel()\n }\n\n canIncreaseNestingLevel() {\n return this.composition.canIncreaseNestingLevel()\n }\n\n decreaseNestingLevel() {\n if (this.canDecreaseNestingLevel()) {\n return this.composition.decreaseNestingLevel()\n }\n }\n\n increaseNestingLevel() {\n if (this.canIncreaseNestingLevel()) {\n return this.composition.increaseNestingLevel()\n }\n }\n\n // Undo/redo\n\n canRedo() {\n return this.undoManager.canRedo()\n }\n\n canUndo() {\n return this.undoManager.canUndo()\n }\n\n recordUndoEntry(description, { context, consolidatable } = {}) {\n return this.undoManager.recordUndoEntry(description, { context, consolidatable })\n }\n\n redo() {\n if (this.canRedo()) {\n return this.undoManager.redo()\n }\n }\n\n undo() {\n if (this.canUndo()) {\n return this.undoManager.undo()\n }\n }\n}\n", "/* eslint-disable\n no-var,\n prefer-const,\n*/\nimport {\n elementContainsNode,\n findChildIndexOfNode,\n nodeIsAttachmentElement,\n nodeIsBlockContainer,\n nodeIsBlockStart,\n nodeIsBlockStartComment,\n nodeIsCursorTarget,\n nodeIsEmptyTextNode,\n nodeIsTextNode,\n tagName,\n walkTree,\n} from \"trix/core/helpers\"\n\nexport default class LocationMapper {\n constructor(element) {\n this.element = element\n }\n\n findLocationFromContainerAndOffset(container, offset, { strict } = { strict: true }) {\n let childIndex = 0\n let foundBlock = false\n const location = { index: 0, offset: 0 }\n const attachmentElement = this.findAttachmentElementParentForNode(container)\n\n if (attachmentElement) {\n container = attachmentElement.parentNode\n offset = findChildIndexOfNode(attachmentElement)\n }\n\n const walker = walkTree(this.element, { usingFilter: rejectAttachmentContents })\n\n while (walker.nextNode()) {\n const node = walker.currentNode\n\n if (node === container && nodeIsTextNode(container)) {\n if (!nodeIsCursorTarget(node)) {\n location.offset += offset\n }\n break\n } else {\n if (node.parentNode === container) {\n if (childIndex++ === offset) {\n break\n }\n } else if (!elementContainsNode(container, node)) {\n if (childIndex > 0) {\n break\n }\n }\n\n if (nodeIsBlockStart(node, { strict })) {\n if (foundBlock) {\n location.index++\n }\n location.offset = 0\n foundBlock = true\n } else {\n location.offset += nodeLength(node)\n }\n }\n }\n\n return location\n }\n\n findContainerAndOffsetFromLocation(location) {\n let container, offset\n if (location.index === 0 && location.offset === 0) {\n container = this.element\n offset = 0\n\n while (container.firstChild) {\n container = container.firstChild\n if (nodeIsBlockContainer(container)) {\n offset = 1\n break\n }\n }\n\n return [ container, offset ]\n }\n\n let [ node, nodeOffset ] = this.findNodeAndOffsetFromLocation(location)\n if (!node) return\n\n if (nodeIsTextNode(node)) {\n if (nodeLength(node) === 0) {\n container = node.parentNode.parentNode\n offset = findChildIndexOfNode(node.parentNode)\n if (nodeIsCursorTarget(node, { name: \"right\" })) {\n offset++\n }\n } else {\n container = node\n offset = location.offset - nodeOffset\n }\n } else {\n container = node.parentNode\n\n if (!nodeIsBlockStart(node.previousSibling)) {\n if (!nodeIsBlockContainer(container)) {\n while (node === container.lastChild) {\n node = container\n container = container.parentNode\n if (nodeIsBlockContainer(container)) {\n break\n }\n }\n }\n }\n\n offset = findChildIndexOfNode(node)\n if (location.offset !== 0) {\n offset++\n }\n }\n\n return [ container, offset ]\n }\n\n findNodeAndOffsetFromLocation(location) {\n let node, nodeOffset\n let offset = 0\n\n for (const currentNode of this.getSignificantNodesForIndex(location.index)) {\n const length = nodeLength(currentNode)\n\n if (location.offset <= offset + length) {\n if (nodeIsTextNode(currentNode)) {\n node = currentNode\n nodeOffset = offset\n if (location.offset === nodeOffset && nodeIsCursorTarget(node)) {\n break\n }\n } else if (!node) {\n node = currentNode\n nodeOffset = offset\n }\n }\n\n offset += length\n if (offset > location.offset) {\n break\n }\n }\n\n return [ node, nodeOffset ]\n }\n\n // Private\n\n findAttachmentElementParentForNode(node) {\n while (node && node !== this.element) {\n if (nodeIsAttachmentElement(node)) {\n return node\n }\n node = node.parentNode\n }\n }\n\n getSignificantNodesForIndex(index) {\n const nodes = []\n const walker = walkTree(this.element, { usingFilter: acceptSignificantNodes })\n let recordingNodes = false\n\n while (walker.nextNode()) {\n const node = walker.currentNode\n if (nodeIsBlockStartComment(node)) {\n var blockIndex\n if (blockIndex != null) {\n blockIndex++\n } else {\n blockIndex = 0\n }\n\n if (blockIndex === index) {\n recordingNodes = true\n } else if (recordingNodes) {\n break\n }\n } else if (recordingNodes) {\n nodes.push(node)\n }\n }\n\n return nodes\n }\n}\n\nconst nodeLength = function(node) {\n if (node.nodeType === Node.TEXT_NODE) {\n if (nodeIsCursorTarget(node)) {\n return 0\n } else {\n const string = node.textContent\n return string.length\n }\n } else if (tagName(node) === \"br\" || nodeIsAttachmentElement(node)) {\n return 1\n } else {\n return 0\n }\n}\n\nconst acceptSignificantNodes = function(node) {\n if (rejectEmptyTextNodes(node) === NodeFilter.FILTER_ACCEPT) {\n return rejectAttachmentContents(node)\n } else {\n return NodeFilter.FILTER_REJECT\n }\n}\n\nconst rejectEmptyTextNodes = function(node) {\n if (nodeIsEmptyTextNode(node)) {\n return NodeFilter.FILTER_REJECT\n } else {\n return NodeFilter.FILTER_ACCEPT\n }\n}\n\nconst rejectAttachmentContents = function(node) {\n if (nodeIsAttachmentElement(node.parentNode)) {\n return NodeFilter.FILTER_REJECT\n } else {\n return NodeFilter.FILTER_ACCEPT\n }\n}\n", "/* eslint-disable\n id-length,\n no-empty,\n*/\nimport { getDOMRange, setDOMRange } from \"trix/core/helpers\"\n\nexport default class PointMapper {\n createDOMRangeFromPoint({ x, y }) {\n let domRange\n if (document.caretPositionFromPoint) {\n const { offsetNode, offset } = document.caretPositionFromPoint(x, y)\n domRange = document.createRange()\n domRange.setStart(offsetNode, offset)\n return domRange\n } else if (document.caretRangeFromPoint) {\n return document.caretRangeFromPoint(x, y)\n } else if (document.body.createTextRange) {\n const originalDOMRange = getDOMRange()\n try {\n // IE 11 throws \"Unspecified error\" when using moveToPoint\n // during a drag-and-drop operation.\n const textRange = document.body.createTextRange()\n textRange.moveToPoint(x, y)\n textRange.select()\n } catch (error) {}\n domRange = getDOMRange()\n setDOMRange(originalDOMRange)\n return domRange\n }\n }\n\n getClientRectsForDOMRange(domRange) {\n const array = Array.from(domRange.getClientRects())\n const start = array[0]\n const end = array[array.length - 1]\n\n return [ start, end ]\n }\n}\n", "/* eslint-disable\n*/\nimport BasicObject from \"trix/core/basic_object\"\n\nimport LocationMapper from \"trix/models/location_mapper\"\nimport PointMapper from \"trix/models/point_mapper\"\n\nimport {\n elementContainsNode,\n getDOMRange,\n getDOMSelection,\n handleEvent,\n innerElementIsActive,\n nodeIsCursorTarget,\n normalizeRange,\n rangeIsCollapsed,\n rangesAreEqual,\n setDOMRange,\n} from \"trix/core/helpers\"\n\nexport default class SelectionManager extends BasicObject {\n constructor(element) {\n super(...arguments)\n this.didMouseDown = this.didMouseDown.bind(this)\n this.selectionDidChange = this.selectionDidChange.bind(this)\n this.element = element\n this.locationMapper = new LocationMapper(this.element)\n this.pointMapper = new PointMapper()\n this.lockCount = 0\n handleEvent(\"mousedown\", { onElement: this.element, withCallback: this.didMouseDown })\n }\n\n getLocationRange(options = {}) {\n if (options.strict === false) {\n return this.createLocationRangeFromDOMRange(getDOMRange())\n } else if (options.ignoreLock) {\n return this.currentLocationRange\n } else if (this.lockedLocationRange) {\n return this.lockedLocationRange\n } else {\n return this.currentLocationRange\n }\n }\n\n setLocationRange(locationRange) {\n if (this.lockedLocationRange) return\n locationRange = normalizeRange(locationRange)\n\n const domRange = this.createDOMRangeFromLocationRange(locationRange)\n if (domRange) {\n setDOMRange(domRange)\n this.updateCurrentLocationRange(locationRange)\n }\n }\n\n setLocationRangeFromPointRange(pointRange) {\n pointRange = normalizeRange(pointRange)\n const startLocation = this.getLocationAtPoint(pointRange[0])\n const endLocation = this.getLocationAtPoint(pointRange[1])\n this.setLocationRange([ startLocation, endLocation ])\n }\n\n getClientRectAtLocationRange(locationRange) {\n const domRange = this.createDOMRangeFromLocationRange(locationRange)\n if (domRange) {\n return this.getClientRectsForDOMRange(domRange)[1]\n }\n }\n\n locationIsCursorTarget(location) {\n const node = Array.from(this.findNodeAndOffsetFromLocation(location))[0]\n return nodeIsCursorTarget(node)\n }\n\n lock() {\n if (this.lockCount++ === 0) {\n this.updateCurrentLocationRange()\n this.lockedLocationRange = this.getLocationRange()\n }\n }\n\n unlock() {\n if (--this.lockCount === 0) {\n const { lockedLocationRange } = this\n this.lockedLocationRange = null\n if (lockedLocationRange != null) {\n return this.setLocationRange(lockedLocationRange)\n }\n }\n }\n\n clearSelection() {\n return getDOMSelection()?.removeAllRanges()\n }\n\n selectionIsCollapsed() {\n return getDOMRange()?.collapsed === true\n }\n\n selectionIsExpanded() {\n return !this.selectionIsCollapsed()\n }\n\n createLocationRangeFromDOMRange(domRange, options) {\n if (domRange == null || !this.domRangeWithinElement(domRange)) return\n\n const start = this.findLocationFromContainerAndOffset(domRange.startContainer, domRange.startOffset, options)\n if (!start) return\n\n const end = domRange.collapsed\n ? undefined\n : this.findLocationFromContainerAndOffset(domRange.endContainer, domRange.endOffset, options)\n\n return normalizeRange([ start, end ])\n }\n\n didMouseDown() {\n return this.pauseTemporarily()\n }\n\n pauseTemporarily() {\n let resumeHandlers\n this.paused = true\n\n const resume = () => {\n this.paused = false\n clearTimeout(resumeTimeout)\n\n Array.from(resumeHandlers).forEach((handler) => {\n handler.destroy()\n })\n\n if (elementContainsNode(document, this.element)) {\n return this.selectionDidChange()\n }\n }\n\n const resumeTimeout = setTimeout(resume, 200)\n\n resumeHandlers = [ \"mousemove\", \"keydown\" ].map((eventName) =>\n handleEvent(eventName, { onElement: document, withCallback: resume })\n )\n }\n\n selectionDidChange() {\n if (!this.paused && !innerElementIsActive(this.element)) {\n return this.updateCurrentLocationRange()\n }\n }\n\n updateCurrentLocationRange(locationRange) {\n if (locationRange != null ? locationRange : locationRange = this.createLocationRangeFromDOMRange(getDOMRange())) {\n if (!rangesAreEqual(locationRange, this.currentLocationRange)) {\n this.currentLocationRange = locationRange\n return this.delegate?.locationRangeDidChange?.(this.currentLocationRange.slice(0))\n }\n }\n }\n\n createDOMRangeFromLocationRange(locationRange) {\n const rangeStart = this.findContainerAndOffsetFromLocation(locationRange[0])\n const rangeEnd = rangeIsCollapsed(locationRange)\n ? rangeStart\n : this.findContainerAndOffsetFromLocation(locationRange[1]) || rangeStart\n\n if (rangeStart != null && rangeEnd != null) {\n const domRange = document.createRange()\n domRange.setStart(...Array.from(rangeStart || []))\n domRange.setEnd(...Array.from(rangeEnd || []))\n return domRange\n }\n }\n\n getLocationAtPoint(point) {\n const domRange = this.createDOMRangeFromPoint(point)\n if (domRange) {\n return this.createLocationRangeFromDOMRange(domRange)?.[0]\n }\n }\n\n domRangeWithinElement(domRange) {\n if (domRange.collapsed) {\n return elementContainsNode(this.element, domRange.startContainer)\n } else {\n return (\n elementContainsNode(this.element, domRange.startContainer) &&\n elementContainsNode(this.element, domRange.endContainer)\n )\n }\n }\n}\n\nSelectionManager.proxyMethod(\"locationMapper.findLocationFromContainerAndOffset\")\nSelectionManager.proxyMethod(\"locationMapper.findContainerAndOffsetFromLocation\")\nSelectionManager.proxyMethod(\"locationMapper.findNodeAndOffsetFromLocation\")\nSelectionManager.proxyMethod(\"pointMapper.createDOMRangeFromPoint\")\nSelectionManager.proxyMethod(\"pointMapper.getClientRectsForDOMRange\")\n\n", "import { removeNode } from \"trix/core/helpers\"\n\nimport * as config from \"trix/config\"\nimport BasicObject from \"trix/core/basic_object\"\n\nimport { defer, handleEvent, makeElement, tagName, triggerEvent } from \"trix/core/helpers\"\nconst { lang, css, keyNames } = config\n\nconst undoable = function(fn) {\n return function() {\n const commands = fn.apply(this, arguments)\n commands.do()\n if (!this.undos) {\n this.undos = []\n }\n this.undos.push(commands.undo)\n }\n}\n\nexport default class AttachmentEditorController extends BasicObject {\n constructor(attachmentPiece, element, container, options = {}) {\n super(...arguments)\n this.didClickToolbar = this.didClickToolbar.bind(this)\n this.didClickActionButton = this.didClickActionButton.bind(this)\n this.didKeyDownCaption = this.didKeyDownCaption.bind(this)\n this.didInputCaption = this.didInputCaption.bind(this)\n this.didChangeCaption = this.didChangeCaption.bind(this)\n this.didBlurCaption = this.didBlurCaption.bind(this)\n this.attachmentPiece = attachmentPiece\n this.element = element\n this.container = container\n this.options = options\n this.attachment = this.attachmentPiece.attachment\n if (tagName(this.element) === \"a\") {\n this.element = this.element.firstChild\n }\n this.install()\n }\n\n install() {\n this.makeElementMutable()\n this.addToolbar()\n if (this.attachment.isPreviewable()) {\n this.installCaptionEditor()\n }\n }\n\n uninstall() {\n let undo = this.undos.pop()\n this.savePendingCaption()\n while (undo) {\n undo()\n undo = this.undos.pop()\n }\n this.delegate?.didUninstallAttachmentEditor(this)\n }\n\n // Private\n\n savePendingCaption() {\n if (this.pendingCaption != null) {\n const caption = this.pendingCaption\n this.pendingCaption = null\n if (caption) {\n this.delegate?.attachmentEditorDidRequestUpdatingAttributesForAttachment?.({ caption }, this.attachment)\n } else {\n this.delegate?.attachmentEditorDidRequestRemovingAttributeForAttachment?.(\"caption\", this.attachment)\n }\n }\n }\n\n // Installing and uninstalling\n\n makeElementMutable = undoable(() => {\n return {\n do: () => {\n this.element.dataset.trixMutable = true\n },\n undo: () => delete this.element.dataset.trixMutable,\n }\n })\n\n addToolbar = undoable(() => {\n //
    \n //
    \n // \n // \n // \n //
    \n //
    \n const element = makeElement({\n tagName: \"div\",\n className: css.attachmentToolbar,\n data: { trixMutable: true },\n childNodes: makeElement({\n tagName: \"div\",\n className: \"trix-button-row\",\n childNodes: makeElement({\n tagName: \"span\",\n className: \"trix-button-group trix-button-group--actions\",\n childNodes: makeElement({\n tagName: \"button\",\n className: \"trix-button trix-button--remove\",\n textContent: lang.remove,\n attributes: { title: lang.remove },\n data: { trixAction: \"remove\" },\n }),\n }),\n }),\n })\n\n if (this.attachment.isPreviewable()) {\n //
    \n // \n // #{name}\n // #{size}\n // \n //
    \n element.appendChild(\n makeElement({\n tagName: \"div\",\n className: css.attachmentMetadataContainer,\n childNodes: makeElement({\n tagName: \"span\",\n className: css.attachmentMetadata,\n childNodes: [\n makeElement({\n tagName: \"span\",\n className: css.attachmentName,\n textContent: this.attachment.getFilename(),\n attributes: { title: this.attachment.getFilename() },\n }),\n makeElement({\n tagName: \"span\",\n className: css.attachmentSize,\n textContent: this.attachment.getFormattedFilesize(),\n }),\n ],\n }),\n })\n )\n }\n\n handleEvent(\"click\", { onElement: element, withCallback: this.didClickToolbar })\n handleEvent(\"click\", {\n onElement: element,\n matchingSelector: \"[data-trix-action]\",\n withCallback: this.didClickActionButton,\n })\n\n triggerEvent(\"trix-attachment-before-toolbar\", { onElement: this.element, attributes: { toolbar: element, attachment: this.attachment } })\n\n return {\n do: () => this.element.appendChild(element),\n undo: () => removeNode(element),\n }\n })\n\n installCaptionEditor = undoable(() => {\n const textarea = makeElement({\n tagName: \"textarea\",\n className: css.attachmentCaptionEditor,\n attributes: { placeholder: lang.captionPlaceholder },\n data: { trixMutable: true },\n })\n textarea.value = this.attachmentPiece.getCaption()\n\n const textareaClone = textarea.cloneNode()\n textareaClone.classList.add(\"trix-autoresize-clone\")\n textareaClone.tabIndex = -1\n\n const autoresize = function() {\n textareaClone.value = textarea.value\n textarea.style.height = textareaClone.scrollHeight + \"px\"\n }\n\n handleEvent(\"input\", { onElement: textarea, withCallback: autoresize })\n handleEvent(\"input\", { onElement: textarea, withCallback: this.didInputCaption })\n handleEvent(\"keydown\", { onElement: textarea, withCallback: this.didKeyDownCaption })\n handleEvent(\"change\", { onElement: textarea, withCallback: this.didChangeCaption })\n handleEvent(\"blur\", { onElement: textarea, withCallback: this.didBlurCaption })\n\n const figcaption = this.element.querySelector(\"figcaption\")\n const editingFigcaption = figcaption.cloneNode()\n\n return {\n do: () => {\n figcaption.style.display = \"none\"\n editingFigcaption.appendChild(textarea)\n editingFigcaption.appendChild(textareaClone)\n editingFigcaption.classList.add(`${css.attachmentCaption}--editing`)\n figcaption.parentElement.insertBefore(editingFigcaption, figcaption)\n autoresize()\n if (this.options.editCaption) {\n return defer(() => textarea.focus())\n }\n },\n undo() {\n removeNode(editingFigcaption)\n figcaption.style.display = null\n },\n }\n })\n\n // Event handlers\n\n didClickToolbar(event) {\n event.preventDefault()\n return event.stopPropagation()\n }\n\n didClickActionButton(event) {\n const action = event.target.getAttribute(\"data-trix-action\")\n switch (action) {\n case \"remove\":\n return this.delegate?.attachmentEditorDidRequestRemovalOfAttachment(this.attachment)\n }\n }\n\n didKeyDownCaption(event) {\n if (keyNames[event.keyCode] === \"return\") {\n event.preventDefault()\n this.savePendingCaption()\n return this.delegate?.attachmentEditorDidRequestDeselectingAttachment?.(this.attachment)\n }\n }\n\n didInputCaption(event) {\n this.pendingCaption = event.target.value.replace(/\\s/g, \" \").trim()\n }\n\n didChangeCaption(event) {\n return this.savePendingCaption()\n }\n\n didBlurCaption(event) {\n return this.savePendingCaption()\n }\n}\n", "import BasicObject from \"trix/core/basic_object\"\nimport DocumentView from \"trix/views/document_view\"\nimport AttachmentEditorController from \"trix/controllers/attachment_editor_controller\"\n\nimport { defer, findClosestElementFromNode, handleEvent, innerElementIsActive } from \"trix/core/helpers\"\nimport { attachmentSelector } from \"trix/config/attachments\"\n\nexport default class CompositionController extends BasicObject {\n constructor(element, composition) {\n super(...arguments)\n this.didFocus = this.didFocus.bind(this)\n this.didBlur = this.didBlur.bind(this)\n this.didClickAttachment = this.didClickAttachment.bind(this)\n\n this.element = element\n this.composition = composition\n this.documentView = new DocumentView(this.composition.document, { element: this.element })\n\n handleEvent(\"focus\", { onElement: this.element, withCallback: this.didFocus })\n handleEvent(\"blur\", { onElement: this.element, withCallback: this.didBlur })\n handleEvent(\"click\", {\n onElement: this.element,\n matchingSelector: \"a[contenteditable=false]\",\n preventDefault: true,\n })\n handleEvent(\"mousedown\", {\n onElement: this.element,\n matchingSelector: attachmentSelector,\n withCallback: this.didClickAttachment,\n })\n handleEvent(\"click\", { onElement: this.element, matchingSelector: `a${attachmentSelector}`, preventDefault: true })\n }\n\n didFocus(event) {\n const perform = () => {\n if (!this.focused) {\n this.focused = true\n return this.delegate?.compositionControllerDidFocus?.()\n }\n }\n\n return this.blurPromise?.then(perform) || perform()\n }\n\n didBlur(event) {\n this.blurPromise = new Promise((resolve) => {\n return defer(() => {\n if (!innerElementIsActive(this.element)) {\n this.focused = null\n this.delegate?.compositionControllerDidBlur?.()\n }\n this.blurPromise = null\n return resolve()\n })\n })\n }\n\n didClickAttachment(event, target) {\n const attachment = this.findAttachmentForElement(target)\n const editCaption = !!findClosestElementFromNode(event.target, { matchingSelector: \"figcaption\" })\n return this.delegate?.compositionControllerDidSelectAttachment?.(attachment, { editCaption })\n }\n\n getSerializableElement() {\n if (this.isEditingAttachment()) {\n return this.documentView.shadowElement\n } else {\n return this.element\n }\n }\n\n render() {\n if (this.revision !== this.composition.revision) {\n this.documentView.setDocument(this.composition.document)\n this.documentView.render()\n this.revision = this.composition.revision\n }\n\n if (this.canSyncDocumentView() && !this.documentView.isSynced()) {\n this.delegate?.compositionControllerWillSyncDocumentView?.()\n this.documentView.sync()\n this.delegate?.compositionControllerDidSyncDocumentView?.()\n }\n\n return this.delegate?.compositionControllerDidRender?.()\n }\n\n rerenderViewForObject(object) {\n this.invalidateViewForObject(object)\n return this.render()\n }\n\n invalidateViewForObject(object) {\n return this.documentView.invalidateViewForObject(object)\n }\n\n isViewCachingEnabled() {\n return this.documentView.isViewCachingEnabled()\n }\n\n enableViewCaching() {\n return this.documentView.enableViewCaching()\n }\n\n disableViewCaching() {\n return this.documentView.disableViewCaching()\n }\n\n refreshViewCache() {\n return this.documentView.garbageCollectCachedViews()\n }\n\n // Attachment editor management\n\n isEditingAttachment() {\n return !!this.attachmentEditor\n }\n\n installAttachmentEditorForAttachment(attachment, options) {\n if (this.attachmentEditor?.attachment === attachment) return\n const element = this.documentView.findElementForObject(attachment)\n if (!element) return\n\n this.uninstallAttachmentEditor()\n const attachmentPiece = this.composition.document.getAttachmentPieceForAttachment(attachment)\n this.attachmentEditor = new AttachmentEditorController(attachmentPiece, element, this.element, options)\n this.attachmentEditor.delegate = this\n }\n\n uninstallAttachmentEditor() {\n return this.attachmentEditor?.uninstall()\n }\n\n // Attachment controller delegate\n\n didUninstallAttachmentEditor() {\n this.attachmentEditor = null\n return this.render()\n }\n\n attachmentEditorDidRequestUpdatingAttributesForAttachment(attributes, attachment) {\n this.delegate?.compositionControllerWillUpdateAttachment?.(attachment)\n return this.composition.updateAttributesForAttachment(attributes, attachment)\n }\n\n attachmentEditorDidRequestRemovingAttributeForAttachment(attribute, attachment) {\n this.delegate?.compositionControllerWillUpdateAttachment?.(attachment)\n return this.composition.removeAttributeForAttachment(attribute, attachment)\n }\n\n attachmentEditorDidRequestRemovalOfAttachment(attachment) {\n return this.delegate?.compositionControllerDidRequestRemovalOfAttachment?.(attachment)\n }\n\n attachmentEditorDidRequestDeselectingAttachment(attachment) {\n return this.delegate?.compositionControllerDidRequestDeselectingAttachment?.(attachment)\n }\n\n // Private\n\n canSyncDocumentView() {\n return !this.isEditingAttachment()\n }\n\n findAttachmentForElement(element) {\n return this.composition.document.getAttachmentById(parseInt(element.dataset.trixId, 10))\n }\n}\n", "import \"trix/views/object_view\"\nimport BasicObject from \"trix/core/basic_object\"\n\nexport default class Controller extends BasicObject {}\n", "import BasicObject from \"trix/core/basic_object\"\n\nimport {\n findClosestElementFromNode,\n nodeIsBlockStartComment,\n nodeIsEmptyTextNode,\n normalizeSpaces,\n summarizeStringChange,\n tagName,\n} from \"trix/core/helpers\"\n\nconst mutableAttributeName = \"data-trix-mutable\"\nconst mutableSelector = `[${mutableAttributeName}]`\n\nconst options = {\n attributes: true,\n childList: true,\n characterData: true,\n characterDataOldValue: true,\n subtree: true,\n}\n\nexport default class MutationObserver extends BasicObject {\n constructor(element) {\n super(element)\n this.didMutate = this.didMutate.bind(this)\n this.element = element\n this.observer = new window.MutationObserver(this.didMutate)\n this.start()\n }\n\n start() {\n this.reset()\n return this.observer.observe(this.element, options)\n }\n\n stop() {\n return this.observer.disconnect()\n }\n\n didMutate(mutations) {\n this.mutations.push(...Array.from(this.findSignificantMutations(mutations) || []))\n\n if (this.mutations.length) {\n this.delegate?.elementDidMutate?.(this.getMutationSummary())\n return this.reset()\n }\n }\n\n // Private\n\n reset() {\n this.mutations = []\n }\n\n findSignificantMutations(mutations) {\n return mutations.filter((mutation) => {\n return this.mutationIsSignificant(mutation)\n })\n }\n\n mutationIsSignificant(mutation) {\n if (this.nodeIsMutable(mutation.target)) {\n return false\n }\n for (const node of Array.from(this.nodesModifiedByMutation(mutation))) {\n if (this.nodeIsSignificant(node)) return true\n }\n return false\n }\n\n nodeIsSignificant(node) {\n return node !== this.element && !this.nodeIsMutable(node) && !nodeIsEmptyTextNode(node)\n }\n\n nodeIsMutable(node) {\n return findClosestElementFromNode(node, { matchingSelector: mutableSelector })\n }\n\n nodesModifiedByMutation(mutation) {\n const nodes = []\n switch (mutation.type) {\n case \"attributes\":\n if (mutation.attributeName !== mutableAttributeName) {\n nodes.push(mutation.target)\n }\n break\n case \"characterData\":\n // Changes to text nodes should consider the parent element\n nodes.push(mutation.target.parentNode)\n nodes.push(mutation.target)\n break\n case \"childList\":\n // Consider each added or removed node\n nodes.push(...Array.from(mutation.addedNodes || []))\n nodes.push(...Array.from(mutation.removedNodes || []))\n break\n }\n return nodes\n }\n\n getMutationSummary() {\n return this.getTextMutationSummary()\n }\n\n getTextMutationSummary() {\n const { additions, deletions } = this.getTextChangesFromCharacterData()\n const textChanges = this.getTextChangesFromChildList()\n\n Array.from(textChanges.additions).forEach((addition) => {\n if (!Array.from(additions).includes(addition)) {\n additions.push(addition)\n }\n })\n\n deletions.push(...Array.from(textChanges.deletions || []))\n\n const summary = {}\n\n const added = additions.join(\"\")\n if (added) {\n summary.textAdded = added\n }\n\n const deleted = deletions.join(\"\")\n if (deleted) {\n summary.textDeleted = deleted\n }\n\n return summary\n }\n\n getMutationsByType(type) {\n return Array.from(this.mutations).filter((mutation) => mutation.type === type)\n }\n\n getTextChangesFromChildList() {\n let textAdded, textRemoved\n const addedNodes = []\n const removedNodes = []\n\n Array.from(this.getMutationsByType(\"childList\")).forEach((mutation) => {\n addedNodes.push(...Array.from(mutation.addedNodes || []))\n removedNodes.push(...Array.from(mutation.removedNodes || []))\n })\n\n const singleBlockCommentRemoved =\n addedNodes.length === 0 && removedNodes.length === 1 && nodeIsBlockStartComment(removedNodes[0])\n\n if (singleBlockCommentRemoved) {\n textAdded = []\n textRemoved = [ \"\\n\" ]\n } else {\n textAdded = getTextForNodes(addedNodes)\n textRemoved = getTextForNodes(removedNodes)\n }\n\n const additions = textAdded.filter((text, index) => text !== textRemoved[index]).map(normalizeSpaces)\n const deletions = textRemoved.filter((text, index) => text !== textAdded[index]).map(normalizeSpaces)\n\n return { additions, deletions }\n }\n\n getTextChangesFromCharacterData() {\n let added, removed\n const characterMutations = this.getMutationsByType(\"characterData\")\n\n if (characterMutations.length) {\n const startMutation = characterMutations[0],\n endMutation = characterMutations[characterMutations.length - 1]\n\n const oldString = normalizeSpaces(startMutation.oldValue)\n const newString = normalizeSpaces(endMutation.target.data)\n const summarized = summarizeStringChange(oldString, newString)\n added = summarized.added\n removed = summarized.removed\n }\n\n return {\n additions: added ? [ added ] : [],\n deletions: removed ? [ removed ] : [],\n }\n }\n}\n\nconst getTextForNodes = function(nodes = []) {\n const text = []\n for (const node of Array.from(nodes)) {\n switch (node.nodeType) {\n case Node.TEXT_NODE:\n text.push(node.data)\n break\n case Node.ELEMENT_NODE:\n if (tagName(node) === \"br\") {\n text.push(\"\\n\")\n } else {\n text.push(...Array.from(getTextForNodes(node.childNodes) || []))\n }\n break\n }\n }\n return text\n}\n", "/* eslint-disable\n no-empty,\n*/\nimport Operation from \"trix/core/utilities/operation\"\n\nexport default class FileVerificationOperation extends Operation {\n constructor(file) {\n super(...arguments)\n this.file = file\n }\n\n perform(callback) {\n const reader = new FileReader()\n\n reader.onerror = () => callback(false)\n\n reader.onload = () => {\n reader.onerror = null\n try {\n reader.abort()\n } catch (error) {}\n return callback(true, this.file)\n }\n\n return reader.readAsArrayBuffer(this.file)\n }\n}\n", "import * as config from \"trix/config\"\nimport { NON_BREAKING_SPACE, OBJECT_REPLACEMENT_CHARACTER, ZERO_WIDTH_SPACE } from \"trix/constants\"\n\n// Each software keyboard on Android emits its own set of events and some of them can be buggy.\n// This class detects when some buggy events are being emitted and lets know the input controller\n// that they should be ignored.\nexport default class FlakyAndroidKeyboardDetector {\n constructor(element) {\n this.element = element\n }\n\n shouldIgnore(event) {\n if (!config.browser.samsungAndroid) return false\n\n this.previousEvent = this.event\n this.event = event\n\n this.checkSamsungKeyboardBuggyModeStart()\n this.checkSamsungKeyboardBuggyModeEnd()\n\n return this.buggyMode\n }\n\n // private\n\n // The Samsung keyboard on Android can enter a buggy state in which it emits a flurry of confused events that,\n // if processed, corrupts the editor. The buggy mode always starts with an insertText event, right after a\n // keydown event with for an \"Unidentified\" key, with the same text as the editor element, except for a few\n // extra whitespace, or exotic utf8, characters.\n checkSamsungKeyboardBuggyModeStart() {\n if (this.insertingLongTextAfterUnidentifiedChar() && differsInWhitespace(this.element.innerText, this.event.data)) {\n this.buggyMode = true\n this.event.preventDefault()\n }\n }\n\n // The flurry of buggy events are always insertText. If we see any other type, it means it's over.\n checkSamsungKeyboardBuggyModeEnd() {\n if (this.buggyMode && this.event.inputType !== \"insertText\") {\n this.buggyMode = false\n }\n }\n\n insertingLongTextAfterUnidentifiedChar() {\n return this.isBeforeInputInsertText() && this.previousEventWasUnidentifiedKeydown() && this.event.data?.length > 50\n }\n\n isBeforeInputInsertText() {\n return this.event.type === \"beforeinput\" && this.event.inputType === \"insertText\"\n }\n\n previousEventWasUnidentifiedKeydown() {\n return this.previousEvent?.type === \"keydown\" && this.previousEvent?.key === \"Unidentified\"\n }\n}\n\nconst differsInWhitespace = (text1, text2) => {\n return normalize(text1) === normalize(text2)\n}\n\nconst whiteSpaceNormalizerRegexp = new RegExp(`(${OBJECT_REPLACEMENT_CHARACTER}|${ZERO_WIDTH_SPACE}|${NON_BREAKING_SPACE}|\\\\s)+`, \"g\")\nconst normalize = (text) => text.replace(whiteSpaceNormalizerRegexp, \" \").trim()\n", "import BasicObject from \"trix/core/basic_object\"\nimport MutationObserver from \"trix/observers/mutation_observer\"\nimport FileVerificationOperation from \"trix/operations/file_verification_operation\"\nimport FlakyAndroidKeyboardDetector from \"../models/flaky_android_keyboard_detector\"\n\nimport { handleEvent, innerElementIsActive } from \"trix/core/helpers\"\n\nexport default class InputController extends BasicObject {\n\n static events = {}\n\n constructor(element) {\n super(...arguments)\n this.element = element\n this.mutationObserver = new MutationObserver(this.element)\n this.mutationObserver.delegate = this\n this.flakyKeyboardDetector = new FlakyAndroidKeyboardDetector(this.element)\n for (const eventName in this.constructor.events) {\n handleEvent(eventName, { onElement: this.element, withCallback: this.handlerFor(eventName) })\n }\n }\n\n elementDidMutate(mutationSummary) {}\n\n editorWillSyncDocumentView() {\n return this.mutationObserver.stop()\n }\n\n editorDidSyncDocumentView() {\n return this.mutationObserver.start()\n }\n\n requestRender() {\n return this.delegate?.inputControllerDidRequestRender?.()\n }\n\n requestReparse() {\n this.delegate?.inputControllerDidRequestReparse?.()\n return this.requestRender()\n }\n\n attachFiles(files) {\n const operations = Array.from(files).map((file) => new FileVerificationOperation(file))\n return Promise.all(operations).then((files) => {\n this.handleInput(function() {\n this.delegate?.inputControllerWillAttachFiles()\n this.responder?.insertFiles(files)\n return this.requestRender()\n })\n })\n }\n\n // Private\n\n handlerFor(eventName) {\n return (event) => {\n if (!event.defaultPrevented) {\n this.handleInput(() => {\n if (!innerElementIsActive(this.element)) {\n if (this.flakyKeyboardDetector.shouldIgnore(event)) return\n\n this.eventName = eventName\n this.constructor.events[eventName].call(this, event)\n }\n })\n }\n }\n }\n\n handleInput(callback) {\n try {\n this.delegate?.inputControllerWillHandleInput()\n callback.call(this)\n } finally {\n this.delegate?.inputControllerDidHandleInput()\n }\n }\n\n createLinkHTML(href, text) {\n const link = document.createElement(\"a\")\n link.href = href\n link.textContent = text ? text : href\n return link.outerHTML\n }\n}\n\n", "import * as config from \"trix/config\"\nimport UTF16String from \"trix/core/utilities/utf16_string\"\nimport BasicObject from \"trix/core/basic_object\"\nimport InputController from \"trix/controllers/input_controller\"\nimport DocumentView from \"trix/views/document_view\"\nimport Document from \"trix/models/document\"\n\nimport {\n dataTransferIsPlainText,\n dataTransferIsWritable,\n keyEventIsKeyboardCommand,\n makeElement,\n objectsAreEqual,\n removeNode,\n squishBreakableWhitespace,\n} from \"trix/core/helpers\"\n\nimport { selectionChangeObserver } from \"trix/observers/selection_change_observer\"\n\nconst { browser, keyNames } = config\nlet pastedFileCount = 0\n\nexport default class Level0InputController extends InputController {\n\n static events = {\n keydown(event) {\n if (!this.isComposing()) {\n this.resetInputSummary()\n }\n this.inputSummary.didInput = true\n\n const keyName = keyNames[event.keyCode]\n if (keyName) {\n let context = this.keys\n\n ;[ \"ctrl\", \"alt\", \"shift\", \"meta\" ].forEach((modifier) => {\n if (event[`${modifier}Key`]) {\n if (modifier === \"ctrl\") {\n modifier = \"control\"\n }\n context = context?.[modifier]\n }\n })\n\n if (context?.[keyName] != null) {\n this.setInputSummary({ keyName })\n selectionChangeObserver.reset()\n context[keyName].call(this, event)\n }\n }\n\n if (keyEventIsKeyboardCommand(event)) {\n const character = String.fromCharCode(event.keyCode).toLowerCase()\n if (character) {\n const keys = [ \"alt\", \"shift\" ].map((modifier) => {\n if (event[`${modifier}Key`]) {\n return modifier\n }\n }).filter(key => key)\n keys.push(character)\n if (this.delegate?.inputControllerDidReceiveKeyboardCommand(keys)) {\n event.preventDefault()\n }\n }\n }\n },\n\n keypress(event) {\n if (this.inputSummary.eventName != null) return\n if (event.metaKey) return\n if (event.ctrlKey && !event.altKey) return\n\n const string = stringFromKeyEvent(event)\n if (string) {\n this.delegate?.inputControllerWillPerformTyping()\n this.responder?.insertString(string)\n return this.setInputSummary({ textAdded: string, didDelete: this.selectionIsExpanded() })\n }\n },\n\n textInput(event) {\n // Handle autocapitalization\n const { data } = event\n const { textAdded } = this.inputSummary\n if (textAdded && textAdded !== data && textAdded.toUpperCase() === data) {\n const range = this.getSelectedRange()\n this.setSelectedRange([ range[0], range[1] + textAdded.length ])\n this.responder?.insertString(data)\n this.setInputSummary({ textAdded: data })\n return this.setSelectedRange(range)\n }\n },\n\n dragenter(event) {\n event.preventDefault()\n },\n\n dragstart(event) {\n this.serializeSelectionToDataTransfer(event.dataTransfer)\n this.draggedRange = this.getSelectedRange()\n return this.delegate?.inputControllerDidStartDrag?.()\n },\n\n dragover(event) {\n if (this.draggedRange || this.canAcceptDataTransfer(event.dataTransfer)) {\n event.preventDefault()\n const draggingPoint = { x: event.clientX, y: event.clientY }\n if (!objectsAreEqual(draggingPoint, this.draggingPoint)) {\n this.draggingPoint = draggingPoint\n return this.delegate?.inputControllerDidReceiveDragOverPoint?.(this.draggingPoint)\n }\n }\n },\n\n dragend(event) {\n this.delegate?.inputControllerDidCancelDrag?.()\n this.draggedRange = null\n this.draggingPoint = null\n },\n\n drop(event) {\n event.preventDefault()\n const files = event.dataTransfer?.files\n const documentJSON = event.dataTransfer.getData(\"application/x-trix-document\")\n\n const point = { x: event.clientX, y: event.clientY }\n this.responder?.setLocationRangeFromPointRange(point)\n\n if (files?.length) {\n this.attachFiles(files)\n } else if (this.draggedRange) {\n this.delegate?.inputControllerWillMoveText()\n this.responder?.moveTextFromRange(this.draggedRange)\n this.draggedRange = null\n this.requestRender()\n } else if (documentJSON) {\n const document = Document.fromJSONString(documentJSON)\n this.responder?.insertDocument(document)\n this.requestRender()\n }\n\n this.draggedRange = null\n this.draggingPoint = null\n },\n\n cut(event) {\n if (this.responder?.selectionIsExpanded()) {\n if (this.serializeSelectionToDataTransfer(event.clipboardData)) {\n event.preventDefault()\n }\n\n this.delegate?.inputControllerWillCutText()\n this.deleteInDirection(\"backward\")\n if (event.defaultPrevented) {\n return this.requestRender()\n }\n }\n },\n\n copy(event) {\n if (this.responder?.selectionIsExpanded()) {\n if (this.serializeSelectionToDataTransfer(event.clipboardData)) {\n event.preventDefault()\n }\n }\n },\n\n paste(event) {\n const clipboard = event.clipboardData || event.testClipboardData\n const paste = { clipboard }\n\n if (!clipboard || pasteEventIsCrippledSafariHTMLPaste(event)) {\n this.getPastedHTMLUsingHiddenElement((html) => {\n paste.type = \"text/html\"\n paste.html = html\n this.delegate?.inputControllerWillPaste(paste)\n this.responder?.insertHTML(paste.html)\n this.requestRender()\n return this.delegate?.inputControllerDidPaste(paste)\n })\n return\n }\n\n const href = clipboard.getData(\"URL\")\n const html = clipboard.getData(\"text/html\")\n const name = clipboard.getData(\"public.url-name\")\n\n if (href) {\n let string\n paste.type = \"text/html\"\n if (name) {\n string = squishBreakableWhitespace(name).trim()\n } else {\n string = href\n }\n paste.html = this.createLinkHTML(href, string)\n this.delegate?.inputControllerWillPaste(paste)\n this.setInputSummary({ textAdded: string, didDelete: this.selectionIsExpanded() })\n this.responder?.insertHTML(paste.html)\n this.requestRender()\n this.delegate?.inputControllerDidPaste(paste)\n } else if (dataTransferIsPlainText(clipboard)) {\n paste.type = \"text/plain\"\n paste.string = clipboard.getData(\"text/plain\")\n this.delegate?.inputControllerWillPaste(paste)\n this.setInputSummary({ textAdded: paste.string, didDelete: this.selectionIsExpanded() })\n this.responder?.insertString(paste.string)\n this.requestRender()\n this.delegate?.inputControllerDidPaste(paste)\n } else if (html) {\n paste.type = \"text/html\"\n paste.html = html\n this.delegate?.inputControllerWillPaste(paste)\n this.responder?.insertHTML(paste.html)\n this.requestRender()\n this.delegate?.inputControllerDidPaste(paste)\n } else if (Array.from(clipboard.types).includes(\"Files\")) {\n const file = clipboard.items?.[0]?.getAsFile?.()\n if (file) {\n const extension = extensionForFile(file)\n if (!file.name && extension) {\n file.name = `pasted-file-${++pastedFileCount}.${extension}`\n }\n paste.type = \"File\"\n paste.file = file\n this.delegate?.inputControllerWillAttachFiles()\n this.responder?.insertFile(paste.file)\n this.requestRender()\n this.delegate?.inputControllerDidPaste(paste)\n }\n }\n\n event.preventDefault()\n },\n\n compositionstart(event) {\n return this.getCompositionInput().start(event.data)\n },\n\n compositionupdate(event) {\n return this.getCompositionInput().update(event.data)\n },\n\n compositionend(event) {\n return this.getCompositionInput().end(event.data)\n },\n\n beforeinput(event) {\n this.inputSummary.didInput = true\n },\n\n input(event) {\n this.inputSummary.didInput = true\n return event.stopPropagation()\n },\n }\n\n static keys = {\n backspace(event) {\n this.delegate?.inputControllerWillPerformTyping()\n return this.deleteInDirection(\"backward\", event)\n },\n\n delete(event) {\n this.delegate?.inputControllerWillPerformTyping()\n return this.deleteInDirection(\"forward\", event)\n },\n\n return(event) {\n this.setInputSummary({ preferDocument: true })\n this.delegate?.inputControllerWillPerformTyping()\n return this.responder?.insertLineBreak()\n },\n\n tab(event) {\n if (this.responder?.canIncreaseNestingLevel()) {\n this.responder?.increaseNestingLevel()\n this.requestRender()\n event.preventDefault()\n }\n },\n\n left(event) {\n if (this.selectionIsInCursorTarget()) {\n event.preventDefault()\n return this.responder?.moveCursorInDirection(\"backward\")\n }\n },\n\n right(event) {\n if (this.selectionIsInCursorTarget()) {\n event.preventDefault()\n return this.responder?.moveCursorInDirection(\"forward\")\n }\n },\n\n control: {\n d(event) {\n this.delegate?.inputControllerWillPerformTyping()\n return this.deleteInDirection(\"forward\", event)\n },\n\n h(event) {\n this.delegate?.inputControllerWillPerformTyping()\n return this.deleteInDirection(\"backward\", event)\n },\n\n o(event) {\n event.preventDefault()\n this.delegate?.inputControllerWillPerformTyping()\n this.responder?.insertString(\"\\n\", { updatePosition: false })\n return this.requestRender()\n },\n },\n\n shift: {\n return(event) {\n this.delegate?.inputControllerWillPerformTyping()\n this.responder?.insertString(\"\\n\")\n this.requestRender()\n event.preventDefault()\n },\n\n tab(event) {\n if (this.responder?.canDecreaseNestingLevel()) {\n this.responder?.decreaseNestingLevel()\n this.requestRender()\n event.preventDefault()\n }\n },\n\n left(event) {\n if (this.selectionIsInCursorTarget()) {\n event.preventDefault()\n return this.expandSelectionInDirection(\"backward\")\n }\n },\n\n right(event) {\n if (this.selectionIsInCursorTarget()) {\n event.preventDefault()\n return this.expandSelectionInDirection(\"forward\")\n }\n },\n },\n\n alt: {\n backspace(event) {\n this.setInputSummary({ preferDocument: false })\n return this.delegate?.inputControllerWillPerformTyping()\n },\n },\n\n meta: {\n backspace(event) {\n this.setInputSummary({ preferDocument: false })\n return this.delegate?.inputControllerWillPerformTyping()\n },\n },\n }\n\n constructor() {\n super(...arguments)\n this.resetInputSummary()\n }\n\n setInputSummary(summary = {}) {\n this.inputSummary.eventName = this.eventName\n for (const key in summary) {\n const value = summary[key]\n this.inputSummary[key] = value\n }\n return this.inputSummary\n }\n\n resetInputSummary() {\n this.inputSummary = {}\n }\n\n reset() {\n this.resetInputSummary()\n return selectionChangeObserver.reset()\n }\n\n // Mutation observer delegate\n\n elementDidMutate(mutationSummary) {\n if (this.isComposing()) {\n return this.delegate?.inputControllerDidAllowUnhandledInput?.()\n } else {\n return this.handleInput(function() {\n if (this.mutationIsSignificant(mutationSummary)) {\n if (this.mutationIsExpected(mutationSummary)) {\n this.requestRender()\n } else {\n this.requestReparse()\n }\n }\n return this.reset()\n })\n }\n }\n\n mutationIsExpected({ textAdded, textDeleted }) {\n if (this.inputSummary.preferDocument) {\n return true\n }\n\n const mutationAdditionMatchesSummary =\n textAdded != null ? textAdded === this.inputSummary.textAdded : !this.inputSummary.textAdded\n const mutationDeletionMatchesSummary =\n textDeleted != null ? this.inputSummary.didDelete : !this.inputSummary.didDelete\n\n const unexpectedNewlineAddition = [ \"\\n\", \" \\n\" ].includes(textAdded) && !mutationAdditionMatchesSummary\n const unexpectedNewlineDeletion = textDeleted === \"\\n\" && !mutationDeletionMatchesSummary\n const singleUnexpectedNewline =\n unexpectedNewlineAddition && !unexpectedNewlineDeletion ||\n unexpectedNewlineDeletion && !unexpectedNewlineAddition\n\n if (singleUnexpectedNewline) {\n const range = this.getSelectedRange()\n if (range) {\n const offset = unexpectedNewlineAddition ? textAdded.replace(/\\n$/, \"\").length || -1 : textAdded?.length || 1\n if (this.responder?.positionIsBlockBreak(range[1] + offset)) {\n return true\n }\n }\n }\n\n return mutationAdditionMatchesSummary && mutationDeletionMatchesSummary\n }\n\n mutationIsSignificant(mutationSummary) {\n const textChanged = Object.keys(mutationSummary).length > 0\n const composedEmptyString = this.compositionInput?.getEndData() === \"\"\n return textChanged || !composedEmptyString\n }\n\n // Private\n\n getCompositionInput() {\n if (this.isComposing()) {\n return this.compositionInput\n } else {\n this.compositionInput = new CompositionInput(this)\n }\n }\n\n isComposing() {\n return this.compositionInput && !this.compositionInput.isEnded()\n }\n\n deleteInDirection(direction, event) {\n if (this.responder?.deleteInDirection(direction) === false) {\n if (event) {\n event.preventDefault()\n return this.requestRender()\n }\n } else {\n return this.setInputSummary({ didDelete: true })\n }\n }\n\n serializeSelectionToDataTransfer(dataTransfer) {\n if (!dataTransferIsWritable(dataTransfer)) return\n const document = this.responder?.getSelectedDocument().toSerializableDocument()\n\n dataTransfer.setData(\"application/x-trix-document\", JSON.stringify(document))\n dataTransfer.setData(\"text/html\", DocumentView.render(document).innerHTML)\n dataTransfer.setData(\"text/plain\", document.toString().replace(/\\n$/, \"\"))\n return true\n }\n\n canAcceptDataTransfer(dataTransfer) {\n const types = {}\n Array.from(dataTransfer?.types || []).forEach((type) => {\n types[type] = true\n })\n return types.Files || types[\"application/x-trix-document\"] || types[\"text/html\"] || types[\"text/plain\"]\n }\n\n getPastedHTMLUsingHiddenElement(callback) {\n const selectedRange = this.getSelectedRange()\n\n const style = {\n position: \"absolute\",\n left: `${window.pageXOffset}px`,\n top: `${window.pageYOffset}px`,\n opacity: 0,\n }\n\n const element = makeElement({ style, tagName: \"div\", editable: true })\n document.body.appendChild(element)\n element.focus()\n\n return requestAnimationFrame(() => {\n const html = element.innerHTML\n removeNode(element)\n this.setSelectedRange(selectedRange)\n return callback(html)\n })\n }\n}\n\nLevel0InputController.proxyMethod(\"responder?.getSelectedRange\")\nLevel0InputController.proxyMethod(\"responder?.setSelectedRange\")\nLevel0InputController.proxyMethod(\"responder?.expandSelectionInDirection\")\nLevel0InputController.proxyMethod(\"responder?.selectionIsInCursorTarget\")\nLevel0InputController.proxyMethod(\"responder?.selectionIsExpanded\")\n\nconst extensionForFile = (file) => file.type?.match(/\\/(\\w+)$/)?.[1]\n\nconst hasStringCodePointAt = !!\" \".codePointAt?.(0)\n\nconst stringFromKeyEvent = function(event) {\n if (event.key && hasStringCodePointAt && event.key.codePointAt(0) === event.keyCode) {\n return event.key\n } else {\n let code\n if (event.which === null) {\n code = event.keyCode\n } else if (event.which !== 0 && event.charCode !== 0) {\n code = event.charCode\n }\n\n if (code != null && keyNames[code] !== \"escape\") {\n return UTF16String.fromCodepoints([ code ]).toString()\n }\n }\n}\n\nconst pasteEventIsCrippledSafariHTMLPaste = function(event) {\n const paste = event.clipboardData\n if (paste) {\n if (paste.types.includes(\"text/html\")) {\n // Answer is yes if there's any possibility of Paste and Match Style in Safari,\n // which is nearly impossible to detect confidently: https://bugs.webkit.org/show_bug.cgi?id=174165\n for (const type of paste.types) {\n const hasPasteboardFlavor = /^CorePasteboardFlavorType/.test(type)\n const hasReadableDynamicData = /^dyn\\./.test(type) && paste.getData(type)\n const mightBePasteAndMatchStyle = hasPasteboardFlavor || hasReadableDynamicData\n if (mightBePasteAndMatchStyle) {\n return true\n }\n }\n return false\n } else {\n const isExternalHTMLPaste = paste.types.includes(\"com.apple.webarchive\")\n const isExternalRichTextPaste = paste.types.includes(\"com.apple.flat-rtfd\")\n return isExternalHTMLPaste || isExternalRichTextPaste\n }\n }\n}\n\nclass CompositionInput extends BasicObject {\n constructor(inputController) {\n super(...arguments)\n this.inputController = inputController\n this.responder = this.inputController.responder\n this.delegate = this.inputController.delegate\n this.inputSummary = this.inputController.inputSummary\n this.data = {}\n }\n\n start(data) {\n this.data.start = data\n\n if (this.isSignificant()) {\n if (this.inputSummary.eventName === \"keypress\" && this.inputSummary.textAdded) {\n this.responder?.deleteInDirection(\"left\")\n }\n\n if (!this.selectionIsExpanded()) {\n this.insertPlaceholder()\n this.requestRender()\n }\n\n this.range = this.responder?.getSelectedRange()\n }\n }\n\n update(data) {\n this.data.update = data\n\n if (this.isSignificant()) {\n const range = this.selectPlaceholder()\n if (range) {\n this.forgetPlaceholder()\n this.range = range\n }\n }\n }\n\n end(data) {\n this.data.end = data\n\n if (this.isSignificant()) {\n this.forgetPlaceholder()\n\n if (this.canApplyToDocument()) {\n this.setInputSummary({ preferDocument: true, didInput: false })\n this.delegate?.inputControllerWillPerformTyping()\n this.responder?.setSelectedRange(this.range)\n this.responder?.insertString(this.data.end)\n return this.responder?.setSelectedRange(this.range[0] + this.data.end.length)\n } else if (this.data.start != null || this.data.update != null) {\n this.requestReparse()\n return this.inputController.reset()\n }\n } else {\n return this.inputController.reset()\n }\n }\n\n getEndData() {\n return this.data.end\n }\n\n isEnded() {\n return this.getEndData() != null\n }\n\n isSignificant() {\n if (browser.composesExistingText) {\n return this.inputSummary.didInput\n } else {\n return true\n }\n }\n\n // Private\n\n canApplyToDocument() {\n return this.data.start?.length === 0 && this.data.end?.length > 0 && this.range\n }\n}\n\nCompositionInput.proxyMethod(\"inputController.setInputSummary\")\nCompositionInput.proxyMethod(\"inputController.requestRender\")\nCompositionInput.proxyMethod(\"inputController.requestReparse\")\nCompositionInput.proxyMethod(\"responder?.selectionIsExpanded\")\nCompositionInput.proxyMethod(\"responder?.insertPlaceholder\")\nCompositionInput.proxyMethod(\"responder?.selectPlaceholder\")\nCompositionInput.proxyMethod(\"responder?.forgetPlaceholder\")\n", "import { getAllAttributeNames, shouldRenderInmmediatelyToDealWithIOSDictation, squishBreakableWhitespace } from \"trix/core/helpers\"\nimport InputController from \"trix/controllers/input_controller\"\nimport * as config from \"trix/config\"\n\nimport { dataTransferIsMsOfficePaste, dataTransferIsPlainText, keyEventIsKeyboardCommand, objectsAreEqual } from \"trix/core/helpers\"\n\nimport { selectionChangeObserver } from \"trix/observers/selection_change_observer\"\n\nexport default class Level2InputController extends InputController {\n constructor(...args) {\n super(...args)\n this.render = this.render.bind(this)\n }\n\n static events = {\n keydown(event) {\n if (keyEventIsKeyboardCommand(event)) {\n const command = keyboardCommandFromKeyEvent(event)\n if (this.delegate?.inputControllerDidReceiveKeyboardCommand(command)) {\n event.preventDefault()\n }\n } else {\n let name = event.key\n if (event.altKey) {\n name += \"+Alt\"\n }\n if (event.shiftKey) {\n name += \"+Shift\"\n }\n const handler = this.constructor.keys[name]\n if (handler) {\n return this.withEvent(event, handler)\n }\n }\n },\n\n // Handle paste event to work around beforeinput.insertFromPaste browser bugs.\n // Safe to remove each condition once fixed upstream.\n paste(event) {\n // https://bugs.webkit.org/show_bug.cgi?id=194921\n let paste\n const href = event.clipboardData?.getData(\"URL\")\n if (pasteEventHasFilesOnly(event)) {\n event.preventDefault()\n return this.attachFiles(event.clipboardData.files)\n\n // https://bugs.chromium.org/p/chromium/issues/detail?id=934448\n } else if (pasteEventHasPlainTextOnly(event)) {\n event.preventDefault()\n paste = {\n type: \"text/plain\",\n string: event.clipboardData.getData(\"text/plain\"),\n }\n this.delegate?.inputControllerWillPaste(paste)\n this.responder?.insertString(paste.string)\n this.render()\n return this.delegate?.inputControllerDidPaste(paste)\n\n // https://bugs.webkit.org/show_bug.cgi?id=196702\n } else if (href) {\n event.preventDefault()\n paste = {\n type: \"text/html\",\n html: this.createLinkHTML(href),\n }\n this.delegate?.inputControllerWillPaste(paste)\n this.responder?.insertHTML(paste.html)\n this.render()\n return this.delegate?.inputControllerDidPaste(paste)\n }\n },\n\n beforeinput(event) {\n const handler = this.constructor.inputTypes[event.inputType]\n\n const immmediateRender = shouldRenderInmmediatelyToDealWithIOSDictation(event)\n\n if (handler) {\n this.withEvent(event, handler)\n\n if (!immmediateRender) {\n this.scheduleRender()\n }\n }\n\n if (immmediateRender) {\n this.render()\n }\n },\n\n input(event) {\n selectionChangeObserver.reset()\n },\n\n dragstart(event) {\n if (this.responder?.selectionContainsAttachments()) {\n event.dataTransfer.setData(\"application/x-trix-dragging\", true)\n\n this.dragging = {\n range: this.responder?.getSelectedRange(),\n point: pointFromEvent(event),\n }\n }\n },\n\n dragenter(event) {\n if (dragEventHasFiles(event)) {\n event.preventDefault()\n }\n },\n\n dragover(event) {\n if (this.dragging) {\n event.preventDefault()\n const point = pointFromEvent(event)\n if (!objectsAreEqual(point, this.dragging.point)) {\n this.dragging.point = point\n return this.responder?.setLocationRangeFromPointRange(point)\n }\n } else if (dragEventHasFiles(event)) {\n event.preventDefault()\n }\n },\n\n drop(event) {\n if (this.dragging) {\n event.preventDefault()\n this.delegate?.inputControllerWillMoveText()\n this.responder?.moveTextFromRange(this.dragging.range)\n this.dragging = null\n return this.scheduleRender()\n } else if (dragEventHasFiles(event)) {\n event.preventDefault()\n const point = pointFromEvent(event)\n this.responder?.setLocationRangeFromPointRange(point)\n return this.attachFiles(event.dataTransfer.files)\n }\n },\n\n dragend() {\n if (this.dragging) {\n this.responder?.setSelectedRange(this.dragging.range)\n this.dragging = null\n }\n },\n\n compositionend(event) {\n if (this.composing) {\n this.composing = false\n if (!config.browser.recentAndroid) this.scheduleRender()\n }\n },\n }\n\n static keys = {\n ArrowLeft() {\n if (this.responder?.shouldManageMovingCursorInDirection(\"backward\")) {\n this.event.preventDefault()\n return this.responder?.moveCursorInDirection(\"backward\")\n }\n },\n\n ArrowRight() {\n if (this.responder?.shouldManageMovingCursorInDirection(\"forward\")) {\n this.event.preventDefault()\n return this.responder?.moveCursorInDirection(\"forward\")\n }\n },\n\n Backspace() {\n if (this.responder?.shouldManageDeletingInDirection(\"backward\")) {\n this.event.preventDefault()\n this.delegate?.inputControllerWillPerformTyping()\n this.responder?.deleteInDirection(\"backward\")\n return this.render()\n }\n },\n\n Tab() {\n if (this.responder?.canIncreaseNestingLevel()) {\n this.event.preventDefault()\n this.responder?.increaseNestingLevel()\n return this.render()\n }\n },\n\n \"Tab+Shift\"() {\n if (this.responder?.canDecreaseNestingLevel()) {\n this.event.preventDefault()\n this.responder?.decreaseNestingLevel()\n return this.render()\n }\n },\n }\n\n static inputTypes = {\n deleteByComposition() {\n return this.deleteInDirection(\"backward\", { recordUndoEntry: false })\n },\n\n deleteByCut() {\n return this.deleteInDirection(\"backward\")\n },\n\n deleteByDrag() {\n this.event.preventDefault()\n return this.withTargetDOMRange(function() {\n this.deleteByDragRange = this.responder?.getSelectedRange()\n })\n },\n\n deleteCompositionText() {\n return this.deleteInDirection(\"backward\", { recordUndoEntry: false })\n },\n\n deleteContent() {\n return this.deleteInDirection(\"backward\")\n },\n\n deleteContentBackward() {\n return this.deleteInDirection(\"backward\")\n },\n\n deleteContentForward() {\n return this.deleteInDirection(\"forward\")\n },\n\n deleteEntireSoftLine() {\n return this.deleteInDirection(\"forward\")\n },\n\n deleteHardLineBackward() {\n return this.deleteInDirection(\"backward\")\n },\n\n deleteHardLineForward() {\n return this.deleteInDirection(\"forward\")\n },\n\n deleteSoftLineBackward() {\n return this.deleteInDirection(\"backward\")\n },\n\n deleteSoftLineForward() {\n return this.deleteInDirection(\"forward\")\n },\n\n deleteWordBackward() {\n return this.deleteInDirection(\"backward\")\n },\n\n deleteWordForward() {\n return this.deleteInDirection(\"forward\")\n },\n\n formatBackColor() {\n return this.activateAttributeIfSupported(\"backgroundColor\", this.event.data)\n },\n\n formatBold() {\n return this.toggleAttributeIfSupported(\"bold\")\n },\n\n formatFontColor() {\n return this.activateAttributeIfSupported(\"color\", this.event.data)\n },\n\n formatFontName() {\n return this.activateAttributeIfSupported(\"font\", this.event.data)\n },\n\n formatIndent() {\n if (this.responder?.canIncreaseNestingLevel()) {\n return this.withTargetDOMRange(function() {\n return this.responder?.increaseNestingLevel()\n })\n }\n },\n\n formatItalic() {\n return this.toggleAttributeIfSupported(\"italic\")\n },\n\n formatJustifyCenter() {\n return this.toggleAttributeIfSupported(\"justifyCenter\")\n },\n\n formatJustifyFull() {\n return this.toggleAttributeIfSupported(\"justifyFull\")\n },\n\n formatJustifyLeft() {\n return this.toggleAttributeIfSupported(\"justifyLeft\")\n },\n\n formatJustifyRight() {\n return this.toggleAttributeIfSupported(\"justifyRight\")\n },\n\n formatOutdent() {\n if (this.responder?.canDecreaseNestingLevel()) {\n return this.withTargetDOMRange(function() {\n return this.responder?.decreaseNestingLevel()\n })\n }\n },\n\n formatRemove() {\n this.withTargetDOMRange(function() {\n for (const attributeName in this.responder?.getCurrentAttributes()) {\n this.responder?.removeCurrentAttribute(attributeName)\n }\n })\n },\n\n formatSetBlockTextDirection() {\n return this.activateAttributeIfSupported(\"blockDir\", this.event.data)\n },\n\n formatSetInlineTextDirection() {\n return this.activateAttributeIfSupported(\"textDir\", this.event.data)\n },\n\n formatStrikeThrough() {\n return this.toggleAttributeIfSupported(\"strike\")\n },\n\n formatSubscript() {\n return this.toggleAttributeIfSupported(\"sub\")\n },\n\n formatSuperscript() {\n return this.toggleAttributeIfSupported(\"sup\")\n },\n\n formatUnderline() {\n return this.toggleAttributeIfSupported(\"underline\")\n },\n\n historyRedo() {\n return this.delegate?.inputControllerWillPerformRedo()\n },\n\n historyUndo() {\n return this.delegate?.inputControllerWillPerformUndo()\n },\n\n insertCompositionText() {\n this.composing = true\n return this.insertString(this.event.data)\n },\n\n insertFromComposition() {\n this.composing = false\n return this.insertString(this.event.data)\n },\n\n insertFromDrop() {\n const range = this.deleteByDragRange\n if (range) {\n this.deleteByDragRange = null\n this.delegate?.inputControllerWillMoveText()\n return this.withTargetDOMRange(function() {\n return this.responder?.moveTextFromRange(range)\n })\n }\n },\n\n insertFromPaste() {\n const { dataTransfer } = this.event\n const paste = { dataTransfer }\n\n const href = dataTransfer.getData(\"URL\")\n const html = dataTransfer.getData(\"text/html\")\n\n if (href) {\n let string\n this.event.preventDefault()\n paste.type = \"text/html\"\n const name = dataTransfer.getData(\"public.url-name\")\n if (name) {\n string = squishBreakableWhitespace(name).trim()\n } else {\n string = href\n }\n paste.html = this.createLinkHTML(href, string)\n this.delegate?.inputControllerWillPaste(paste)\n this.withTargetDOMRange(function() {\n return this.responder?.insertHTML(paste.html)\n })\n this.afterRender = () => {\n return this.delegate?.inputControllerDidPaste(paste)\n }\n } else if (dataTransferIsPlainText(dataTransfer)) {\n paste.type = \"text/plain\"\n paste.string = dataTransfer.getData(\"text/plain\")\n this.delegate?.inputControllerWillPaste(paste)\n this.withTargetDOMRange(function() {\n return this.responder?.insertString(paste.string)\n })\n\n this.afterRender = () => {\n return this.delegate?.inputControllerDidPaste(paste)\n }\n } else if (processableFilePaste(this.event)) {\n paste.type = \"File\"\n paste.file = dataTransfer.files[0]\n this.delegate?.inputControllerWillPaste(paste)\n this.withTargetDOMRange(function() {\n return this.responder?.insertFile(paste.file)\n })\n\n this.afterRender = () => {\n return this.delegate?.inputControllerDidPaste(paste)\n }\n } else if (html) {\n this.event.preventDefault()\n paste.type = \"text/html\"\n paste.html = html\n this.delegate?.inputControllerWillPaste(paste)\n this.withTargetDOMRange(function() {\n return this.responder?.insertHTML(paste.html)\n })\n this.afterRender = () => {\n return this.delegate?.inputControllerDidPaste(paste)\n }\n }\n },\n\n insertFromYank() {\n return this.insertString(this.event.data)\n },\n\n insertLineBreak() {\n return this.insertString(\"\\n\")\n },\n\n insertLink() {\n return this.activateAttributeIfSupported(\"href\", this.event.data)\n },\n\n insertOrderedList() {\n return this.toggleAttributeIfSupported(\"number\")\n },\n\n insertParagraph() {\n this.delegate?.inputControllerWillPerformTyping()\n return this.withTargetDOMRange(function() {\n return this.responder?.insertLineBreak()\n })\n },\n\n insertReplacementText() {\n const replacement = this.event.dataTransfer.getData(\"text/plain\")\n const domRange = this.event.getTargetRanges()[0]\n\n this.withTargetDOMRange(domRange, () => {\n this.insertString(replacement, { updatePosition: false })\n })\n },\n\n insertText() {\n return this.insertString(this.event.data || this.event.dataTransfer?.getData(\"text/plain\"))\n },\n\n insertTranspose() {\n return this.insertString(this.event.data)\n },\n\n insertUnorderedList() {\n return this.toggleAttributeIfSupported(\"bullet\")\n },\n }\n\n elementDidMutate() {\n if (this.scheduledRender) {\n if (this.composing) {\n return this.delegate?.inputControllerDidAllowUnhandledInput?.()\n }\n } else {\n return this.reparse()\n }\n }\n\n scheduleRender() {\n return this.scheduledRender ? this.scheduledRender : this.scheduledRender = requestAnimationFrame(this.render)\n }\n\n render() {\n cancelAnimationFrame(this.scheduledRender)\n this.scheduledRender = null\n if (!this.composing) {\n this.delegate?.render()\n }\n this.afterRender?.()\n this.afterRender = null\n }\n\n reparse() {\n return this.delegate?.reparse()\n }\n\n // Responder helpers\n\n insertString(string = \"\", options) {\n this.delegate?.inputControllerWillPerformTyping()\n return this.withTargetDOMRange(function() {\n return this.responder?.insertString(string, options)\n })\n }\n\n toggleAttributeIfSupported(attributeName) {\n if (getAllAttributeNames().includes(attributeName)) {\n this.delegate?.inputControllerWillPerformFormatting(attributeName)\n return this.withTargetDOMRange(function() {\n return this.responder?.toggleCurrentAttribute(attributeName)\n })\n }\n }\n\n activateAttributeIfSupported(attributeName, value) {\n if (getAllAttributeNames().includes(attributeName)) {\n this.delegate?.inputControllerWillPerformFormatting(attributeName)\n return this.withTargetDOMRange(function() {\n return this.responder?.setCurrentAttribute(attributeName, value)\n })\n }\n }\n\n deleteInDirection(direction, { recordUndoEntry } = { recordUndoEntry: true }) {\n if (recordUndoEntry) {\n this.delegate?.inputControllerWillPerformTyping()\n }\n const perform = () => this.responder?.deleteInDirection(direction)\n const domRange = this.getTargetDOMRange({ minLength: this.composing ? 1 : 2 })\n if (domRange) {\n return this.withTargetDOMRange(domRange, perform)\n } else {\n return perform()\n }\n }\n\n // Selection helpers\n\n withTargetDOMRange(domRange, fn) {\n if (typeof domRange === \"function\") {\n fn = domRange\n domRange = this.getTargetDOMRange()\n }\n if (domRange) {\n return this.responder?.withTargetDOMRange(domRange, fn.bind(this))\n } else {\n selectionChangeObserver.reset()\n return fn.call(this)\n }\n }\n\n getTargetDOMRange({ minLength } = { minLength: 0 }) {\n const targetRanges = this.event.getTargetRanges?.()\n if (targetRanges) {\n if (targetRanges.length) {\n const domRange = staticRangeToRange(targetRanges[0])\n if (minLength === 0 || domRange.toString().length >= minLength) {\n return domRange\n }\n }\n }\n }\n\n withEvent(event, fn) {\n let result\n this.event = event\n try {\n result = fn.call(this)\n } finally {\n this.event = null\n }\n return result\n }\n}\n\nconst staticRangeToRange = function(staticRange) {\n const range = document.createRange()\n range.setStart(staticRange.startContainer, staticRange.startOffset)\n range.setEnd(staticRange.endContainer, staticRange.endOffset)\n return range\n}\n\n// Event helpers\n\nconst dragEventHasFiles = (event) => Array.from(event.dataTransfer?.types || []).includes(\"Files\")\n\nconst processableFilePaste = (event) => {\n // Paste events that only have files are handled by the paste event handler,\n // to work around Safari not supporting beforeinput.insertFromPaste for files.\n\n // MS Office text pastes include a file with a screenshot of the text, but we should\n // handle them as text pastes.\n return event.dataTransfer.files?.[0] && !pasteEventHasFilesOnly(event) && !dataTransferIsMsOfficePaste(event)\n}\n\nconst pasteEventHasFilesOnly = function(event) {\n const clipboard = event.clipboardData\n if (clipboard) {\n const fileTypes = Array.from(clipboard.types).filter((type) => type.match(/file/i)) // \"Files\", \"application/x-moz-file\"\n return fileTypes.length === clipboard.types.length && clipboard.files.length >= 1\n }\n}\n\nconst pasteEventHasPlainTextOnly = function(event) {\n const clipboard = event.clipboardData\n if (clipboard) {\n return clipboard.types.includes(\"text/plain\") && clipboard.types.length === 1\n }\n}\n\nconst keyboardCommandFromKeyEvent = function(event) {\n const command = []\n if (event.altKey) {\n command.push(\"alt\")\n }\n if (event.shiftKey) {\n command.push(\"shift\")\n }\n command.push(event.key)\n return command\n}\n\nconst pointFromEvent = (event) => ({\n x: event.clientX,\n y: event.clientY,\n})\n", "import BasicObject from \"trix/core/basic_object\"\n\nimport { findClosestElementFromNode, handleEvent, triggerEvent } from \"trix/core/helpers\"\n\nimport DOMPurify from \"dompurify\"\n\nconst attributeButtonSelector = \"[data-trix-attribute]\"\nconst actionButtonSelector = \"[data-trix-action]\"\nconst toolbarButtonSelector = `${attributeButtonSelector}, ${actionButtonSelector}`\nconst dialogSelector = \"[data-trix-dialog]\"\nconst activeDialogSelector = `${dialogSelector}[data-trix-active]`\nconst dialogButtonSelector = `${dialogSelector} [data-trix-method]`\nconst dialogInputSelector = `${dialogSelector} [data-trix-input]`\nconst getInputForDialog = (element, attributeName) => {\n if (!attributeName) { attributeName = getAttributeName(element) }\n return element.querySelector(`[data-trix-input][name='${attributeName}']`)\n}\nconst getActionName = (element) => element.getAttribute(\"data-trix-action\")\nconst getAttributeName = (element) => {\n return element.getAttribute(\"data-trix-attribute\") || element.getAttribute(\"data-trix-dialog-attribute\")\n}\nconst getDialogName = (element) => element.getAttribute(\"data-trix-dialog\")\n\nexport default class ToolbarController extends BasicObject {\n constructor(element) {\n super(element)\n this.didClickActionButton = this.didClickActionButton.bind(this)\n this.didClickAttributeButton = this.didClickAttributeButton.bind(this)\n this.didClickDialogButton = this.didClickDialogButton.bind(this)\n this.didKeyDownDialogInput = this.didKeyDownDialogInput.bind(this)\n this.element = element\n this.attributes = {}\n this.actions = {}\n this.resetDialogInputs()\n\n handleEvent(\"mousedown\", {\n onElement: this.element,\n matchingSelector: actionButtonSelector,\n withCallback: this.didClickActionButton,\n })\n handleEvent(\"mousedown\", {\n onElement: this.element,\n matchingSelector: attributeButtonSelector,\n withCallback: this.didClickAttributeButton,\n })\n handleEvent(\"click\", { onElement: this.element, matchingSelector: toolbarButtonSelector, preventDefault: true })\n handleEvent(\"click\", {\n onElement: this.element,\n matchingSelector: dialogButtonSelector,\n withCallback: this.didClickDialogButton,\n })\n handleEvent(\"keydown\", {\n onElement: this.element,\n matchingSelector: dialogInputSelector,\n withCallback: this.didKeyDownDialogInput,\n })\n }\n\n // Event handlers\n\n didClickActionButton(event, element) {\n this.delegate?.toolbarDidClickButton()\n event.preventDefault()\n const actionName = getActionName(element)\n\n if (this.getDialog(actionName)) {\n return this.toggleDialog(actionName)\n } else {\n return this.delegate?.toolbarDidInvokeAction(actionName, element)\n }\n }\n\n didClickAttributeButton(event, element) {\n this.delegate?.toolbarDidClickButton()\n event.preventDefault()\n const attributeName = getAttributeName(element)\n\n if (this.getDialog(attributeName)) {\n this.toggleDialog(attributeName)\n } else {\n this.delegate?.toolbarDidToggleAttribute(attributeName)\n }\n\n return this.refreshAttributeButtons()\n }\n\n didClickDialogButton(event, element) {\n const dialogElement = findClosestElementFromNode(element, { matchingSelector: dialogSelector })\n const method = element.getAttribute(\"data-trix-method\")\n return this[method].call(this, dialogElement)\n }\n\n didKeyDownDialogInput(event, element) {\n if (event.keyCode === 13) {\n // Enter key\n event.preventDefault()\n const attribute = element.getAttribute(\"name\")\n const dialog = this.getDialog(attribute)\n this.setAttribute(dialog)\n }\n if (event.keyCode === 27) {\n // Escape key\n event.preventDefault()\n return this.hideDialog()\n }\n }\n\n // Action buttons\n\n updateActions(actions) {\n this.actions = actions\n return this.refreshActionButtons()\n }\n\n refreshActionButtons() {\n return this.eachActionButton((element, actionName) => {\n element.disabled = this.actions[actionName] === false\n })\n }\n\n eachActionButton(callback) {\n return Array.from(this.element.querySelectorAll(actionButtonSelector)).map((element) =>\n callback(element, getActionName(element))\n )\n }\n\n // Attribute buttons\n\n updateAttributes(attributes) {\n this.attributes = attributes\n return this.refreshAttributeButtons()\n }\n\n refreshAttributeButtons() {\n return this.eachAttributeButton((element, attributeName) => {\n element.disabled = this.attributes[attributeName] === false\n if (this.attributes[attributeName] || this.dialogIsVisible(attributeName)) {\n element.setAttribute(\"data-trix-active\", \"\")\n return element.classList.add(\"trix-active\")\n } else {\n element.removeAttribute(\"data-trix-active\")\n return element.classList.remove(\"trix-active\")\n }\n })\n }\n\n eachAttributeButton(callback) {\n return Array.from(this.element.querySelectorAll(attributeButtonSelector)).map((element) =>\n callback(element, getAttributeName(element))\n )\n }\n\n applyKeyboardCommand(keys) {\n const keyString = JSON.stringify(keys.sort())\n for (const button of Array.from(this.element.querySelectorAll(\"[data-trix-key]\"))) {\n const buttonKeys = button.getAttribute(\"data-trix-key\").split(\"+\")\n const buttonKeyString = JSON.stringify(buttonKeys.sort())\n if (buttonKeyString === keyString) {\n triggerEvent(\"mousedown\", { onElement: button })\n return true\n }\n }\n return false\n }\n\n // Dialogs\n\n dialogIsVisible(dialogName) {\n const element = this.getDialog(dialogName)\n if (element) {\n return element.hasAttribute(\"data-trix-active\")\n }\n }\n\n toggleDialog(dialogName) {\n if (this.dialogIsVisible(dialogName)) {\n return this.hideDialog()\n } else {\n return this.showDialog(dialogName)\n }\n }\n\n showDialog(dialogName) {\n this.hideDialog()\n this.delegate?.toolbarWillShowDialog()\n\n const element = this.getDialog(dialogName)\n element.setAttribute(\"data-trix-active\", \"\")\n element.classList.add(\"trix-active\")\n\n Array.from(element.querySelectorAll(\"input[disabled]\")).forEach((disabledInput) => {\n disabledInput.removeAttribute(\"disabled\")\n })\n\n const attributeName = getAttributeName(element)\n if (attributeName) {\n const input = getInputForDialog(element, dialogName)\n if (input) {\n input.value = this.attributes[attributeName] || \"\"\n input.select()\n }\n }\n\n return this.delegate?.toolbarDidShowDialog(dialogName)\n }\n\n setAttribute(dialogElement) {\n const attributeName = getAttributeName(dialogElement)\n const input = getInputForDialog(dialogElement, attributeName)\n\n if (input.willValidate) {\n input.setCustomValidity(\"\")\n if (!input.checkValidity() || !this.isSafeAttribute(input)) {\n input.setCustomValidity(\"Invalid value\")\n input.setAttribute(\"data-trix-validate\", \"\")\n input.classList.add(\"trix-validate\")\n return input.focus()\n }\n }\n this.delegate?.toolbarDidUpdateAttribute(attributeName, input.value)\n return this.hideDialog()\n }\n\n isSafeAttribute(input) {\n if (input.hasAttribute(\"data-trix-validate-href\")) {\n return DOMPurify.isValidAttribute(\"a\", \"href\", input.value)\n } else {\n return true\n }\n }\n\n removeAttribute(dialogElement) {\n const attributeName = getAttributeName(dialogElement)\n this.delegate?.toolbarDidRemoveAttribute(attributeName)\n return this.hideDialog()\n }\n\n hideDialog() {\n const element = this.element.querySelector(activeDialogSelector)\n if (element) {\n element.removeAttribute(\"data-trix-active\")\n element.classList.remove(\"trix-active\")\n this.resetDialogInputs()\n return this.delegate?.toolbarDidHideDialog(getDialogName(element))\n }\n }\n\n resetDialogInputs() {\n Array.from(this.element.querySelectorAll(dialogInputSelector)).forEach((input) => {\n input.setAttribute(\"disabled\", \"disabled\")\n input.removeAttribute(\"data-trix-validate\")\n input.classList.remove(\"trix-validate\")\n })\n }\n\n getDialog(dialogName) {\n return this.element.querySelector(`[data-trix-dialog=${dialogName}]`)\n }\n}\n", "/* eslint-disable\n id-length,\n*/\nimport * as config from \"trix/config\"\n\nimport { serializeToContentType } from \"trix/core/serialization\"\n\nimport Controller from \"trix/controllers/controller\"\nimport Level0InputController from \"trix/controllers/level_0_input_controller\"\nimport Level2InputController from \"trix/controllers/level_2_input_controller\"\nimport CompositionController from \"trix/controllers/composition_controller\"\nimport ToolbarController from \"trix/controllers/toolbar_controller\"\nimport Composition from \"trix/models/composition\"\nimport Editor from \"trix/models/editor\"\nimport AttachmentManager from \"trix/models/attachment_manager\"\nimport SelectionManager from \"trix/models/selection_manager\"\n\nimport { getBlockConfig, objectsAreEqual, rangeIsCollapsed, rangesAreEqual } from \"trix/core/helpers\"\nimport { selectionChangeObserver } from \"trix/observers/selection_change_observer\"\n\nconst snapshotsAreEqual = (a, b) => rangesAreEqual(a.selectedRange, b.selectedRange) && a.document.isEqualTo(b.document)\n\nexport default class EditorController extends Controller {\n static actions = {\n undo: {\n test() {\n return this.editor.canUndo()\n },\n perform() {\n return this.editor.undo()\n },\n },\n redo: {\n test() {\n return this.editor.canRedo()\n },\n perform() {\n return this.editor.redo()\n },\n },\n link: {\n test() {\n return this.editor.canActivateAttribute(\"href\")\n },\n },\n increaseNestingLevel: {\n test() {\n return this.editor.canIncreaseNestingLevel()\n },\n perform() {\n return this.editor.increaseNestingLevel() && this.render()\n },\n },\n decreaseNestingLevel: {\n test() {\n return this.editor.canDecreaseNestingLevel()\n },\n perform() {\n return this.editor.decreaseNestingLevel() && this.render()\n },\n },\n attachFiles: {\n test() {\n return true\n },\n perform() {\n return config.input.pickFiles(this.editor.insertFiles)\n },\n },\n }\n\n constructor({ editorElement, document, html }) {\n super(...arguments)\n this.editorElement = editorElement\n this.selectionManager = new SelectionManager(this.editorElement)\n this.selectionManager.delegate = this\n\n this.composition = new Composition()\n this.composition.delegate = this\n\n this.attachmentManager = new AttachmentManager(this.composition.getAttachments())\n this.attachmentManager.delegate = this\n\n this.inputController =\n config.input.getLevel() === 2\n ? new Level2InputController(this.editorElement)\n : new Level0InputController(this.editorElement)\n\n this.inputController.delegate = this\n this.inputController.responder = this.composition\n\n this.compositionController = new CompositionController(this.editorElement, this.composition)\n this.compositionController.delegate = this\n\n this.toolbarController = new ToolbarController(this.editorElement.toolbarElement)\n this.toolbarController.delegate = this\n\n this.editor = new Editor(this.composition, this.selectionManager, this.editorElement)\n if (document) {\n this.editor.loadDocument(document)\n } else {\n this.editor.loadHTML(html)\n }\n }\n\n registerSelectionManager() {\n return selectionChangeObserver.registerSelectionManager(this.selectionManager)\n }\n\n unregisterSelectionManager() {\n return selectionChangeObserver.unregisterSelectionManager(this.selectionManager)\n }\n\n render() {\n return this.compositionController.render()\n }\n\n reparse() {\n return this.composition.replaceHTML(this.editorElement.innerHTML)\n }\n\n // Composition delegate\n\n compositionDidChangeDocument(document) {\n this.notifyEditorElement(\"document-change\")\n if (!this.handlingInput) {\n return this.render()\n }\n }\n\n compositionDidChangeCurrentAttributes(currentAttributes) {\n this.currentAttributes = currentAttributes\n this.toolbarController.updateAttributes(this.currentAttributes)\n this.updateCurrentActions()\n return this.notifyEditorElement(\"attributes-change\", { attributes: this.currentAttributes })\n }\n\n compositionDidPerformInsertionAtRange(range) {\n if (this.pasting) {\n this.pastedRange = range\n }\n }\n\n compositionShouldAcceptFile(file) {\n return this.notifyEditorElement(\"file-accept\", { file })\n }\n\n compositionDidAddAttachment(attachment) {\n const managedAttachment = this.attachmentManager.manageAttachment(attachment)\n return this.notifyEditorElement(\"attachment-add\", { attachment: managedAttachment })\n }\n\n compositionDidEditAttachment(attachment) {\n this.compositionController.rerenderViewForObject(attachment)\n const managedAttachment = this.attachmentManager.manageAttachment(attachment)\n this.notifyEditorElement(\"attachment-edit\", { attachment: managedAttachment })\n return this.notifyEditorElement(\"change\")\n }\n\n compositionDidChangeAttachmentPreviewURL(attachment) {\n this.compositionController.invalidateViewForObject(attachment)\n return this.notifyEditorElement(\"change\")\n }\n\n compositionDidRemoveAttachment(attachment) {\n const managedAttachment = this.attachmentManager.unmanageAttachment(attachment)\n return this.notifyEditorElement(\"attachment-remove\", { attachment: managedAttachment })\n }\n\n compositionDidStartEditingAttachment(attachment, options) {\n this.attachmentLocationRange = this.composition.document.getLocationRangeOfAttachment(attachment)\n this.compositionController.installAttachmentEditorForAttachment(attachment, options)\n return this.selectionManager.setLocationRange(this.attachmentLocationRange)\n }\n\n compositionDidStopEditingAttachment(attachment) {\n this.compositionController.uninstallAttachmentEditor()\n this.attachmentLocationRange = null\n }\n\n compositionDidRequestChangingSelectionToLocationRange(locationRange) {\n if (this.loadingSnapshot && !this.isFocused()) return\n this.requestedLocationRange = locationRange\n this.compositionRevisionWhenLocationRangeRequested = this.composition.revision\n if (!this.handlingInput) {\n return this.render()\n }\n }\n\n compositionWillLoadSnapshot() {\n this.loadingSnapshot = true\n }\n\n compositionDidLoadSnapshot() {\n this.compositionController.refreshViewCache()\n this.render()\n this.loadingSnapshot = false\n }\n\n getSelectionManager() {\n return this.selectionManager\n }\n\n // Attachment manager delegate\n\n attachmentManagerDidRequestRemovalOfAttachment(attachment) {\n return this.removeAttachment(attachment)\n }\n\n // Document controller delegate\n\n compositionControllerWillSyncDocumentView() {\n this.inputController.editorWillSyncDocumentView()\n this.selectionManager.lock()\n return this.selectionManager.clearSelection()\n }\n\n compositionControllerDidSyncDocumentView() {\n this.inputController.editorDidSyncDocumentView()\n this.selectionManager.unlock()\n this.updateCurrentActions()\n return this.notifyEditorElement(\"sync\")\n }\n\n compositionControllerDidRender() {\n if (this.requestedLocationRange) {\n if (this.compositionRevisionWhenLocationRangeRequested === this.composition.revision) {\n this.selectionManager.setLocationRange(this.requestedLocationRange)\n }\n this.requestedLocationRange = null\n this.compositionRevisionWhenLocationRangeRequested = null\n }\n\n if (this.renderedCompositionRevision !== this.composition.revision) {\n this.runEditorFilters()\n this.composition.updateCurrentAttributes()\n this.notifyEditorElement(\"render\")\n }\n\n this.renderedCompositionRevision = this.composition.revision\n }\n\n compositionControllerDidFocus() {\n if (this.isFocusedInvisibly()) {\n this.setLocationRange({ index: 0, offset: 0 })\n }\n this.toolbarController.hideDialog()\n return this.notifyEditorElement(\"focus\")\n }\n\n compositionControllerDidBlur() {\n return this.notifyEditorElement(\"blur\")\n }\n\n compositionControllerDidSelectAttachment(attachment, options) {\n this.toolbarController.hideDialog()\n return this.composition.editAttachment(attachment, options)\n }\n\n compositionControllerDidRequestDeselectingAttachment(attachment) {\n const locationRange = this.attachmentLocationRange || this.composition.document.getLocationRangeOfAttachment(attachment)\n return this.selectionManager.setLocationRange(locationRange[1])\n }\n\n compositionControllerWillUpdateAttachment(attachment) {\n return this.editor.recordUndoEntry(\"Edit Attachment\", { context: attachment.id, consolidatable: true })\n }\n\n compositionControllerDidRequestRemovalOfAttachment(attachment) {\n return this.removeAttachment(attachment)\n }\n\n // Input controller delegate\n\n inputControllerWillHandleInput() {\n this.handlingInput = true\n this.requestedRender = false\n }\n\n inputControllerDidRequestRender() {\n this.requestedRender = true\n }\n\n inputControllerDidHandleInput() {\n this.handlingInput = false\n if (this.requestedRender) {\n this.requestedRender = false\n return this.render()\n }\n }\n\n inputControllerDidAllowUnhandledInput() {\n return this.notifyEditorElement(\"change\")\n }\n\n inputControllerDidRequestReparse() {\n return this.reparse()\n }\n\n inputControllerWillPerformTyping() {\n return this.recordTypingUndoEntry()\n }\n\n inputControllerWillPerformFormatting(attributeName) {\n return this.recordFormattingUndoEntry(attributeName)\n }\n\n inputControllerWillCutText() {\n return this.editor.recordUndoEntry(\"Cut\")\n }\n\n inputControllerWillPaste(paste) {\n this.editor.recordUndoEntry(\"Paste\")\n this.pasting = true\n return this.notifyEditorElement(\"before-paste\", { paste })\n }\n\n inputControllerDidPaste(paste) {\n paste.range = this.pastedRange\n this.pastedRange = null\n this.pasting = null\n return this.notifyEditorElement(\"paste\", { paste })\n }\n\n inputControllerWillMoveText() {\n return this.editor.recordUndoEntry(\"Move\")\n }\n\n inputControllerWillAttachFiles() {\n return this.editor.recordUndoEntry(\"Drop Files\")\n }\n\n inputControllerWillPerformUndo() {\n return this.editor.undo()\n }\n\n inputControllerWillPerformRedo() {\n return this.editor.redo()\n }\n\n inputControllerDidReceiveKeyboardCommand(keys) {\n return this.toolbarController.applyKeyboardCommand(keys)\n }\n\n inputControllerDidStartDrag() {\n this.locationRangeBeforeDrag = this.selectionManager.getLocationRange()\n }\n\n inputControllerDidReceiveDragOverPoint(point) {\n return this.selectionManager.setLocationRangeFromPointRange(point)\n }\n\n inputControllerDidCancelDrag() {\n this.selectionManager.setLocationRange(this.locationRangeBeforeDrag)\n this.locationRangeBeforeDrag = null\n }\n\n // Selection manager delegate\n\n locationRangeDidChange(locationRange) {\n this.composition.updateCurrentAttributes()\n this.updateCurrentActions()\n if (this.attachmentLocationRange && !rangesAreEqual(this.attachmentLocationRange, locationRange)) {\n this.composition.stopEditingAttachment()\n }\n return this.notifyEditorElement(\"selection-change\")\n }\n\n // Toolbar controller delegate\n\n toolbarDidClickButton() {\n if (!this.getLocationRange()) {\n return this.setLocationRange({ index: 0, offset: 0 })\n }\n }\n\n toolbarDidInvokeAction(actionName, invokingElement) {\n return this.invokeAction(actionName, invokingElement)\n }\n\n toolbarDidToggleAttribute(attributeName) {\n this.recordFormattingUndoEntry(attributeName)\n this.composition.toggleCurrentAttribute(attributeName)\n this.render()\n if (!this.selectionFrozen) {\n return this.editorElement.focus()\n }\n }\n\n toolbarDidUpdateAttribute(attributeName, value) {\n this.recordFormattingUndoEntry(attributeName)\n this.composition.setCurrentAttribute(attributeName, value)\n this.render()\n if (!this.selectionFrozen) {\n return this.editorElement.focus()\n }\n }\n\n toolbarDidRemoveAttribute(attributeName) {\n this.recordFormattingUndoEntry(attributeName)\n this.composition.removeCurrentAttribute(attributeName)\n this.render()\n if (!this.selectionFrozen) {\n return this.editorElement.focus()\n }\n }\n\n toolbarWillShowDialog(dialogElement) {\n this.composition.expandSelectionForEditing()\n return this.freezeSelection()\n }\n\n toolbarDidShowDialog(dialogName) {\n return this.notifyEditorElement(\"toolbar-dialog-show\", { dialogName })\n }\n\n toolbarDidHideDialog(dialogName) {\n this.thawSelection()\n this.editorElement.focus()\n return this.notifyEditorElement(\"toolbar-dialog-hide\", { dialogName })\n }\n\n // Selection\n\n freezeSelection() {\n if (!this.selectionFrozen) {\n this.selectionManager.lock()\n this.composition.freezeSelection()\n this.selectionFrozen = true\n return this.render()\n }\n }\n\n thawSelection() {\n if (this.selectionFrozen) {\n this.composition.thawSelection()\n this.selectionManager.unlock()\n this.selectionFrozen = false\n return this.render()\n }\n }\n\n canInvokeAction(actionName) {\n if (this.actionIsExternal(actionName)) {\n return true\n } else {\n return !!this.actions[actionName]?.test?.call(this)\n }\n }\n\n invokeAction(actionName, invokingElement) {\n if (this.actionIsExternal(actionName)) {\n return this.notifyEditorElement(\"action-invoke\", { actionName, invokingElement })\n } else {\n return this.actions[actionName]?.perform?.call(this)\n }\n }\n\n actionIsExternal(actionName) {\n return /^x-./.test(actionName)\n }\n\n getCurrentActions() {\n const result = {}\n for (const actionName in this.actions) {\n result[actionName] = this.canInvokeAction(actionName)\n }\n return result\n }\n\n updateCurrentActions() {\n const currentActions = this.getCurrentActions()\n if (!objectsAreEqual(currentActions, this.currentActions)) {\n this.currentActions = currentActions\n this.toolbarController.updateActions(this.currentActions)\n return this.notifyEditorElement(\"actions-change\", { actions: this.currentActions })\n }\n }\n\n // Editor filters\n\n runEditorFilters() {\n let snapshot = this.composition.getSnapshot()\n\n Array.from(this.editor.filters).forEach((filter) => {\n const { document, selectedRange } = snapshot\n snapshot = filter.call(this.editor, snapshot) || {}\n if (!snapshot.document) {\n snapshot.document = document\n }\n if (!snapshot.selectedRange) {\n snapshot.selectedRange = selectedRange\n }\n })\n\n if (!snapshotsAreEqual(snapshot, this.composition.getSnapshot())) {\n return this.composition.loadSnapshot(snapshot)\n }\n }\n\n // Private\n\n updateInputElement() {\n const element = this.compositionController.getSerializableElement()\n const value = serializeToContentType(element, \"text/html\")\n return this.editorElement.setFormValue(value)\n }\n\n notifyEditorElement(message, data) {\n switch (message) {\n case \"document-change\":\n this.documentChangedSinceLastRender = true\n break\n case \"render\":\n if (this.documentChangedSinceLastRender) {\n this.documentChangedSinceLastRender = false\n this.notifyEditorElement(\"change\")\n }\n break\n case \"change\":\n case \"attachment-add\":\n case \"attachment-edit\":\n case \"attachment-remove\":\n this.updateInputElement()\n break\n }\n\n return this.editorElement.notify(message, data)\n }\n\n removeAttachment(attachment) {\n this.editor.recordUndoEntry(\"Delete Attachment\")\n this.composition.removeAttachment(attachment)\n return this.render()\n }\n\n recordFormattingUndoEntry(attributeName) {\n const blockConfig = getBlockConfig(attributeName)\n const locationRange = this.selectionManager.getLocationRange()\n if (blockConfig || !rangeIsCollapsed(locationRange)) {\n return this.editor.recordUndoEntry(\"Formatting\", { context: this.getUndoContext(), consolidatable: true })\n }\n }\n\n recordTypingUndoEntry() {\n return this.editor.recordUndoEntry(\"Typing\", {\n context: this.getUndoContext(this.currentAttributes),\n consolidatable: true,\n })\n }\n\n getUndoContext(...context) {\n return [ this.getLocationContext(), this.getTimeContext(), ...Array.from(context) ]\n }\n\n getLocationContext() {\n const locationRange = this.selectionManager.getLocationRange()\n if (rangeIsCollapsed(locationRange)) {\n return locationRange[0].index\n } else {\n return locationRange\n }\n }\n\n getTimeContext() {\n if (config.undo.interval > 0) {\n return Math.floor(new Date().getTime() / config.undo.interval)\n } else {\n return 0\n }\n }\n\n isFocused() {\n return this.editorElement === this.editorElement.ownerDocument?.activeElement\n }\n\n // Detect \"Cursor disappears sporadically\" Firefox bug.\n // - https://bugzilla.mozilla.org/show_bug.cgi?id=226301\n isFocusedInvisibly() {\n return this.isFocused() && !this.getLocationRange()\n }\n\n get actions() {\n return this.constructor.actions\n }\n}\n\nEditorController.proxyMethod(\"getSelectionManager().setLocationRange\")\nEditorController.proxyMethod(\"getSelectionManager().getLocationRange\")\n", "import * as config from \"trix/config\"\n\nimport { installDefaultCSSForTagName } from \"trix/core/helpers\"\n\ninstallDefaultCSSForTagName(\"trix-toolbar\", `\\\n%t {\n display: block;\n}\n\n%t {\n white-space: nowrap;\n}\n\n%t [data-trix-dialog] {\n display: none;\n}\n\n%t [data-trix-dialog][data-trix-active] {\n display: block;\n}\n\n%t [data-trix-dialog] [data-trix-validate]:invalid {\n background-color: #ffdddd;\n}`)\n\nexport default class TrixToolbarElement extends HTMLElement {\n\n // Element lifecycle\n\n connectedCallback() {\n if (this.innerHTML === \"\") {\n this.innerHTML = config.toolbar.getDefaultHTML()\n }\n }\n}\n", "import * as config from \"trix/config\"\n\nimport {\n findClosestElementFromNode,\n handleEvent,\n handleEventOnce,\n installDefaultCSSForTagName,\n makeElement,\n triggerEvent,\n} from \"trix/core/helpers\"\n\nimport { attachmentSelector } from \"trix/config/attachments\"\nimport EditorController from \"trix/controllers/editor_controller\"\nimport \"trix/elements/trix_toolbar_element\"\n\nlet id = 0\n\n// Contenteditable support helpers\n\nconst autofocus = function(element) {\n if (!document.querySelector(\":focus\")) {\n if (element.hasAttribute(\"autofocus\") && document.querySelector(\"[autofocus]\") === element) {\n return element.focus()\n }\n }\n}\n\nconst makeEditable = function(element) {\n if (element.hasAttribute(\"contenteditable\")) {\n return\n }\n element.setAttribute(\"contenteditable\", \"\")\n return handleEventOnce(\"focus\", {\n onElement: element,\n withCallback() {\n return configureContentEditable(element)\n },\n })\n}\n\nconst configureContentEditable = function(element) {\n disableObjectResizing(element)\n return setDefaultParagraphSeparator(element)\n}\n\nconst disableObjectResizing = function(element) {\n if (document.queryCommandSupported?.(\"enableObjectResizing\")) {\n document.execCommand(\"enableObjectResizing\", false, false)\n return handleEvent(\"mscontrolselect\", { onElement: element, preventDefault: true })\n }\n}\n\nconst setDefaultParagraphSeparator = function(element) {\n if (document.queryCommandSupported?.(\"DefaultParagraphSeparator\")) {\n const { tagName } = config.blockAttributes.default\n if ([ \"div\", \"p\" ].includes(tagName)) {\n return document.execCommand(\"DefaultParagraphSeparator\", false, tagName)\n }\n }\n}\n\n// Accessibility helpers\n\nconst addAccessibilityRole = function(element) {\n if (element.hasAttribute(\"role\")) {\n return\n }\n return element.setAttribute(\"role\", \"textbox\")\n}\n\nconst ensureAriaLabel = function(element) {\n if (element.hasAttribute(\"aria-label\") || element.hasAttribute(\"aria-labelledby\")) {\n return\n }\n\n const update = function() {\n const texts = Array.from(element.labels).map((label) => {\n if (!label.contains(element)) return label.textContent\n }).filter(text => text)\n\n const text = texts.join(\" \")\n if (text) {\n return element.setAttribute(\"aria-label\", text)\n } else {\n return element.removeAttribute(\"aria-label\")\n }\n }\n update()\n return handleEvent(\"focus\", { onElement: element, withCallback: update })\n}\n\n// Style\n\nconst cursorTargetStyles = (function() {\n if (config.browser.forcesObjectResizing) {\n return {\n display: \"inline\",\n width: \"auto\",\n }\n } else {\n return {\n display: \"inline-block\",\n width: \"1px\",\n }\n }\n})()\n\ninstallDefaultCSSForTagName(\"trix-editor\", `\\\n%t {\n display: block;\n}\n\n%t:empty::before {\n content: attr(placeholder);\n color: graytext;\n cursor: text;\n pointer-events: none;\n white-space: pre-line;\n}\n\n%t a[contenteditable=false] {\n cursor: text;\n}\n\n%t img {\n max-width: 100%;\n height: auto;\n}\n\n%t ${attachmentSelector} figcaption textarea {\n resize: none;\n}\n\n%t ${attachmentSelector} figcaption textarea.trix-autoresize-clone {\n position: absolute;\n left: -9999px;\n max-height: 0px;\n}\n\n%t ${attachmentSelector} figcaption[data-trix-placeholder]:empty::before {\n content: attr(data-trix-placeholder);\n color: graytext;\n}\n\n%t [data-trix-cursor-target] {\n display: ${cursorTargetStyles.display} !important;\n width: ${cursorTargetStyles.width} !important;\n padding: 0 !important;\n margin: 0 !important;\n border: none !important;\n}\n\n%t [data-trix-cursor-target=left] {\n vertical-align: top !important;\n margin-left: -1px !important;\n}\n\n%t [data-trix-cursor-target=right] {\n vertical-align: bottom !important;\n margin-right: -1px !important;\n}`)\n\nclass ElementInternalsDelegate {\n #internals\n\n constructor(element) {\n this.element = element\n this.#internals = element.attachInternals()\n }\n\n connectedCallback() {\n this.#validate()\n }\n\n disconnectedCallback() {\n }\n\n get labels() {\n return this.#internals.labels\n }\n\n get disabled() {\n return this.element.inputElement?.disabled\n }\n\n set disabled(value) {\n this.element.toggleAttribute(\"disabled\", value)\n }\n\n get required() {\n return this.element.hasAttribute(\"required\")\n }\n\n set required(value) {\n this.element.toggleAttribute(\"required\", value)\n this.#validate()\n }\n\n get validity() {\n return this.#internals.validity\n }\n\n get validationMessage() {\n return this.#internals.validationMessage\n }\n\n get willValidate() {\n return this.#internals.willValidate\n }\n\n setFormValue(value) {\n this.#validate()\n }\n\n checkValidity() {\n return this.#internals.checkValidity()\n }\n\n reportValidity() {\n return this.#internals.reportValidity()\n }\n\n setCustomValidity(validationMessage) {\n this.#validate(validationMessage)\n }\n\n #validate(customValidationMessage = \"\") {\n const { required, value } = this.element\n const valueMissing = required && !value\n const customError = !!customValidationMessage\n const input = makeElement(\"input\", { required })\n const validationMessage = customValidationMessage || input.validationMessage\n\n this.#internals.setValidity({ valueMissing, customError }, validationMessage)\n }\n}\n\nclass LegacyDelegate {\n #focusHandler\n\n constructor(element) {\n this.element = element\n }\n\n connectedCallback() {\n this.#focusHandler = ensureAriaLabel(this.element)\n window.addEventListener(\"reset\", this.#resetBubbled, false)\n window.addEventListener(\"click\", this.#clickBubbled, false)\n }\n\n disconnectedCallback() {\n this.#focusHandler?.destroy()\n window.removeEventListener(\"reset\", this.#resetBubbled, false)\n window.removeEventListener(\"click\", this.#clickBubbled, false)\n }\n\n get labels() {\n const labels = []\n if (this.element.id && this.element.ownerDocument) {\n labels.push(...Array.from(this.element.ownerDocument.querySelectorAll(`label[for='${this.element.id}']`) || []))\n }\n\n const label = findClosestElementFromNode(this.element, { matchingSelector: \"label\" })\n if (label) {\n if ([ this.element, null ].includes(label.control)) {\n labels.push(label)\n }\n }\n\n return labels\n }\n\n get disabled() {\n console.warn(\"This browser does not support the [disabled] attribute for trix-editor elements.\")\n\n return false\n }\n\n set disabled(value) {\n console.warn(\"This browser does not support the [disabled] attribute for trix-editor elements.\")\n }\n\n get required() {\n console.warn(\"This browser does not support the [required] attribute for trix-editor elements.\")\n\n return false\n }\n\n set required(value) {\n console.warn(\"This browser does not support the [required] attribute for trix-editor elements.\")\n }\n\n get validity() {\n console.warn(\"This browser does not support the validity property for trix-editor elements.\")\n return null\n }\n\n get validationMessage() {\n console.warn(\"This browser does not support the validationMessage property for trix-editor elements.\")\n\n return \"\"\n }\n\n get willValidate() {\n console.warn(\"This browser does not support the willValidate property for trix-editor elements.\")\n\n return false\n }\n\n setFormValue(value) {\n }\n\n checkValidity() {\n console.warn(\"This browser does not support checkValidity() for trix-editor elements.\")\n\n return true\n }\n\n reportValidity() {\n console.warn(\"This browser does not support reportValidity() for trix-editor elements.\")\n\n return true\n }\n\n setCustomValidity(validationMessage) {\n console.warn(\"This browser does not support setCustomValidity(validationMessage) for trix-editor elements.\")\n }\n\n #resetBubbled = (event) => {\n if (event.defaultPrevented) return\n if (event.target !== this.element.form) return\n this.element.reset()\n }\n\n #clickBubbled = (event) => {\n if (event.defaultPrevented) return\n if (this.element.contains(event.target)) return\n\n const label = findClosestElementFromNode(event.target, { matchingSelector: \"label\" })\n if (!label) return\n\n if (!Array.from(this.labels).includes(label)) return\n\n this.element.focus()\n }\n}\n\nexport default class TrixEditorElement extends HTMLElement {\n static formAssociated = \"ElementInternals\" in window\n\n static observedAttributes = [ \"connected\" ]\n\n #delegate\n\n constructor() {\n super()\n this.#delegate = this.constructor.formAssociated ?\n new ElementInternalsDelegate(this) :\n new LegacyDelegate(this)\n }\n\n // Properties\n\n get trixId() {\n if (this.hasAttribute(\"trix-id\")) {\n return this.getAttribute(\"trix-id\")\n } else {\n this.setAttribute(\"trix-id\", ++id)\n return this.trixId\n }\n }\n\n get labels() {\n return this.#delegate.labels\n }\n\n get disabled() {\n return this.#delegate.disabled\n }\n\n set disabled(value) {\n this.#delegate.disabled = value\n }\n\n get required() {\n return this.#delegate.required\n }\n\n set required(value) {\n this.#delegate.required = value\n }\n\n get validity() {\n return this.#delegate.validity\n }\n\n get validationMessage() {\n return this.#delegate.validationMessage\n }\n\n get willValidate() {\n return this.#delegate.willValidate\n }\n\n get type() {\n return this.localName\n }\n\n get toolbarElement() {\n if (this.hasAttribute(\"toolbar\")) {\n return this.ownerDocument?.getElementById(this.getAttribute(\"toolbar\"))\n } else if (this.parentNode) {\n const toolbarId = `trix-toolbar-${this.trixId}`\n this.setAttribute(\"toolbar\", toolbarId)\n this.internalToolbar = makeElement(\"trix-toolbar\", { id: toolbarId })\n this.parentNode.insertBefore(this.internalToolbar, this)\n return this.internalToolbar\n } else {\n return undefined\n }\n }\n\n get form() {\n return this.inputElement?.form\n }\n\n get inputElement() {\n if (this.hasAttribute(\"input\")) {\n return this.ownerDocument?.getElementById(this.getAttribute(\"input\"))\n } else if (this.parentNode) {\n const inputId = `trix-input-${this.trixId}`\n this.setAttribute(\"input\", inputId)\n const element = makeElement(\"input\", { type: \"hidden\", id: inputId })\n this.parentNode.insertBefore(element, this.nextElementSibling)\n return element\n } else {\n return undefined\n }\n }\n\n get editor() {\n return this.editorController?.editor\n }\n\n get name() {\n return this.inputElement?.name\n }\n\n get value() {\n return this.inputElement?.value\n }\n\n set value(defaultValue) {\n this.defaultValue = defaultValue\n this.editor?.loadHTML(this.defaultValue)\n }\n\n // Element callbacks\n\n attributeChangedCallback(name, oldValue, newValue) {\n if (name === \"connected\" && this.isConnected && oldValue != null && oldValue !== newValue) {\n requestAnimationFrame(() => this.reconnect())\n }\n }\n\n // Controller delegate methods\n\n notify(message, data) {\n if (this.editorController) {\n return triggerEvent(`trix-${message}`, { onElement: this, attributes: data })\n }\n }\n\n setFormValue(value) {\n if (this.inputElement) {\n this.inputElement.value = value\n this.#delegate.setFormValue(value)\n }\n }\n\n // Element lifecycle\n\n connectedCallback() {\n if (!this.hasAttribute(\"data-trix-internal\")) {\n makeEditable(this)\n addAccessibilityRole(this)\n\n if (!this.editorController) {\n triggerEvent(\"trix-before-initialize\", { onElement: this })\n this.editorController = new EditorController({\n editorElement: this,\n html: this.defaultValue = this.value,\n })\n requestAnimationFrame(() => triggerEvent(\"trix-initialize\", { onElement: this }))\n }\n this.editorController.registerSelectionManager()\n this.#delegate.connectedCallback()\n\n this.toggleAttribute(\"connected\", true)\n autofocus(this)\n }\n }\n\n disconnectedCallback() {\n this.editorController?.unregisterSelectionManager()\n this.#delegate.disconnectedCallback()\n this.toggleAttribute(\"connected\", false)\n }\n\n reconnect() {\n this.removeInternalToolbar()\n this.disconnectedCallback()\n this.connectedCallback()\n }\n\n removeInternalToolbar() {\n this.internalToolbar?.remove()\n this.internalToolbar = null\n }\n\n // Form support\n\n checkValidity() {\n return this.#delegate.checkValidity()\n }\n\n reportValidity() {\n return this.#delegate.reportValidity()\n }\n\n setCustomValidity(validationMessage) {\n this.#delegate.setCustomValidity(validationMessage)\n }\n\n formDisabledCallback(disabled) {\n if (this.inputElement) {\n this.inputElement.disabled = disabled\n }\n this.toggleAttribute(\"contenteditable\", !disabled)\n }\n\n formResetCallback() {\n this.reset()\n }\n\n reset() {\n this.value = this.defaultValue\n }\n}\n", "import { version } from \"../../package.json\"\n\nimport * as config from \"trix/config\"\nimport * as core from \"trix/core\"\nimport * as models from \"trix/models\"\nimport * as views from \"trix/views\"\nimport * as controllers from \"trix/controllers\"\nimport * as observers from \"trix/observers\"\nimport * as operations from \"trix/operations\"\nimport * as elements from \"trix/elements\"\nimport * as filters from \"trix/filters\"\n\nconst Trix = {\n VERSION: version,\n config,\n core,\n models,\n views,\n controllers,\n observers,\n operations,\n elements,\n filters\n}\n\n// Expose models under the Trix constant for compatibility with v1\nObject.assign(Trix, models)\n\nfunction start() {\n if (!customElements.get(\"trix-toolbar\")) {\n customElements.define(\"trix-toolbar\", elements.TrixToolbarElement)\n }\n\n if (!customElements.get(\"trix-editor\")) {\n customElements.define(\"trix-editor\", elements.TrixEditorElement)\n }\n}\n\nwindow.Trix = Trix\nsetTimeout(start, 0)\n\nexport default Trix\n", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static targets = [\"add_item\", \"template\"]\n\n add_association(event) {\n event.preventDefault()\n var content = this.templateTarget.innerHTML.replace(/TEMPLATE_RECORD/g, new Date().valueOf())\n this.add_itemTarget.insertAdjacentHTML('beforebegin', content)\n }\n\n remove_association(event) {\n event.preventDefault()\n let item = event.target.closest(\".nested-fields\")\n item.querySelector(\"input[name*='_destroy']\").value = 1\n item.style.display = 'none'\n }\n}", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static values = { session: String }\n connect() {\n var stripe_public_key = document.querySelector('meta[name=\"stripe-public-key\"]').getAttribute('content');\n var stripe = Stripe(stripe_public_key);\n stripe.redirectToCheckout({\n sessionId: this.sessionValue\n }).then(function (result) {\n });\n }\n}\n", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static targets = [\"label\", \"input\"]\n initialize() {\n }\n\n connect() {\n this.labelTarget.innerText = `${this.inputTarget.value} rows per page`\n }\n\n change(event) {\n this.labelTarget.innerText = `${event.target.value} rows per page`\n }\n\n disconnect() {}\n}", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static targets = ['target']\n connect() {\n var Sharer = function (elem) {\n this.elem = elem;\n };\n\n Sharer.init = function () {\n var elems = document.querySelectorAll('[data-sharer]'),\n i,\n l = elems.length;\n\n for (i = 0; i < l; i++) {\n elems[i].addEventListener('click', Sharer.add);\n }\n };\n\n Sharer.add = function (elem) {\n var target = elem.currentTarget || elem.srcElement;\n var sharer = new Sharer(target);\n sharer.share();\n };\n\n Sharer.prototype = {\n constructor: Sharer,\n getValue: function (attr) {\n var val = this.elem.getAttribute('data-' + attr);\n if (val && attr === 'hashtag') {\n if (!val.startsWith('#')) {\n val = '#' + val;\n }\n }\n return val;\n },\n\n share: function () {\n var sharer = this.getValue('sharer').toLowerCase(),\n sharers = {\n facebook: {\n shareUrl: 'https://www.facebook.com/sharer/sharer.php',\n params: {\n u: this.getValue('url'),\n hashtag: this.getValue('hashtag'),\n },\n },\n linkedin: {\n shareUrl: 'https://www.linkedin.com/shareArticle',\n params: {\n url: this.getValue('url'),\n mini: true,\n },\n },\n twitter: {\n shareUrl: 'https://twitter.com/intent/tweet/',\n params: {\n text: this.getValue('title'),\n url: this.getValue('url'),\n hashtags: this.getValue('hashtags'),\n via: this.getValue('via'),\n },\n },\n pinterest: {\n shareUrl: 'https://www.pinterest.com/pin/create/button/',\n params: {\n url: this.getValue('url'),\n media: this.getValue('image'),\n description: this.getValue('description'),\n },\n },\n reddit: {\n shareUrl: 'https://www.reddit.com/submit',\n params: { url: this.getValue('url') },\n },\n\n flipboard: {\n shareUrl: 'https://share.flipboard.com/bookmarklet/popout',\n params: {\n v: 2,\n title: this.getValue('title'),\n url: this.getValue('url'),\n t: Date.now(),\n },\n },\n },\n s = sharers[sharer];\n\n if (s) {\n s.width = this.getValue('width');\n s.height = this.getValue('height');\n }\n return s !== undefined ? this.urlSharer(s) : false;\n },\n urlSharer: function (sharer) {\n var p = sharer.params || {},\n keys = Object.keys(p),\n i,\n str = keys.length > 0 ? '?' : '';\n for (i = 0; i < keys.length; i++) {\n if (str !== '?') {\n str += '&';\n }\n if (p[keys[i]]) {\n str += keys[i] + '=' + encodeURIComponent(p[keys[i]]);\n }\n }\n sharer.shareUrl += str;\n\n if (!sharer.isLink) {\n var popWidth = sharer.width || 600,\n popHeight = sharer.height || 480,\n left = window.innerWidth / 2 - popWidth / 2 + window.screenX,\n top = window.innerHeight / 2 - popHeight / 2 + window.screenY,\n popParams = 'scrollbars=no, width=' + popWidth + ', height=' + popHeight + ', top=' + top + ', left=' + left,\n newWindow = window.open(sharer.shareUrl, '', popParams);\n\n if (window.focus) {\n newWindow.focus();\n }\n } else {\n window.location.href = sharer.shareUrl;\n }\n },\n };\n Sharer.init()\n }\n}", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static targets = [\"episode\"]\n\n connect() {}\n\n moveUp() {\n let array = this.episodeTargets.map( x => x.dataset.id )\n let item_id = event.target.dataset.id\n let index = array.findIndex(id => id == item_id)\n let new_array = this.move(array, index, index - 1)\n let url = this.data.get('url')\n let token = document.head.querySelector('meta[name=\"csrf-token\"]').getAttribute('content')\n let data = { positions: new_array }\n fetch(url, {\n method: 'PATCH',\n credentials: 'same-origin',\n headers: {\n \"X-CSRF-Token\": token,\n \"Accept\": \"application/json\",\n \"Content-type\": \"application/json\"\n },\n body: JSON.stringify(data)\n })\n }\n\n move(arr, old_index, new_index) {\n while (old_index < 0) {\n old_index += arr.length;\n }\n while (new_index < 0) {\n new_index += arr.length;\n }\n if (new_index >= arr.length) {\n var k = new_index - arr.length;\n while ((k--) + 1) {\n arr.push(undefined);\n }\n }\n arr.splice(new_index, 0, arr.splice(old_index, 1)[0]);\n return arr;\n }\n\n\n}", "import { Controller } from \"@hotwired/stimulus\"\n\n// Connects to data-controller=\"stripe\"\nexport default class extends Controller {\n static values = { publicKey: String, clientSecret: String }\n stripe = Stripe(this.publicKeyValue)\n\n async connect() {\n this.checkout = await this.stripe.initEmbeddedCheckout({\n clientSecret: this.clientSecretValue\n })\n this.checkout.mount(this.element)\n }\n\n disconnect() {\n this.checkout.destroy()\n }\n}\n", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static targets = ['select']\n\n change_role() {\n let url = this.data.get('url')\n var formData = new FormData();\n formData.append(\"role\", this.selectTarget.value);\n\n fetch(url, {\n method: 'PUT',\n headers: {\n Accept: \"text/vnd.turbo-stream.html\"\n },\n body: formData\n })\n .then(r => r.text())\n .then(html => Turbo.renderStreamMessage(html))\n }\n}", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n initialize() {\n this.element.setAttribute('data-action', 'click->turbo#click')\n }\n click(e){\n e.preventDefault();\n this.url = this.element.getAttribute(\"href\")\n fetch(this.url, {\n headers: {\n Accept: \"text/vnd.turbo-stream.html\"\n }\n })\n .then(r => r.text())\n .then(html => Turbo.renderStreamMessage(html))\n }\n}\n", "import { Controller } from \"@hotwired/stimulus\"\n\n// Connects to data-controller=\"unsubscribe-all\"\nexport default class extends Controller {\n submit() {\n const checkboxes = this.element.querySelectorAll('input[type=\"checkbox\"]')\n checkboxes.forEach((checkbox) => {\n checkbox.checked = false\n })\n this.element.submit()\n }\n}\n", "import { Controller } from \"@hotwired/stimulus\"\n\n// Connects to data-controller=\"update-history\"\nexport default class extends Controller {\n connect() {\n this.element.setAttribute(\"data-action\", \"click->update-history#click\")\n }\n\n click() {\n history.replaceState(history.state, \"\", this.element.href)\n }\n}\n", "import { Controller } from \"@hotwired/stimulus\"\nexport default class extends Controller {\n static targets = ['input', 'check']\n initialize() {}\n\n connect() {}\n\n disconnect() {}\n\n update_view(){\n let data = this.inputTarget.selectedOptions[0].value\n let new_users_only = this.checkTarget.checked\n let url = this.data.get('url')\n let params = new URLSearchParams()\n params.append('users', data)\n params.append('new_users_only', new_users_only)\n this.post_to_url(url, params)\n }\n\n post_to_url(path, params) {\n fetch(`${path}?${params}`, {\n })\n .then(r => r.text())\n .then(html => Turbo.renderStreamMessage(html))\n }\n\n params() {\n\n return params\n }\n}", "import { Controller } from \"@hotwired/stimulus\"\n\n// Connects to data-controller=\"video-chapter-grabber\"\nexport default class extends Controller {\n static outlets = [\"video\"]\n static targets = [\"input\"]\n\n getTime() {\n if (this.hasVideoOutlet) {\n let time = this.videoOutlet.videoPlayer.currentTime()\n this.inputTarget.value = time\n }\n }\n}\n", "import { Controller } from \"@hotwired/stimulus\"\nimport videojs from 'video.js'\nimport 'video.js/dist/video-js.css'\n\n// import contribQualityLevels from 'videojs-contrib-quality-levels'\nimport qualitySelector from 'videojs-hls-quality-selector'\nimport \"videojs-seek-buttons\"\nimport 'videojs-seek-buttons/dist/videojs-seek-buttons.css'\n\nexport default class extends Controller {\n static outlets = [\"current-times-updater\"]\n static targets = [\"player\"]\n static values = { time: 0 }\n\n initializePlayer() {\n require('videojs-contrib-quality-levels')\n\n videojs.registerPlugin('hlsQualitySelector', qualitySelector)\n\n videojs.options.vhs.overrideNative = true\n videojs.options.controls = true,\n videojs.options.nativeControlsForTouch = false\n videojs.options.playsinline = true\n videojs.options.vhs.enableLowInitialPlaylist = false\n videojs.options.html5.nativeAudioTracks = false\n videojs.options.html5.nativeTextTracks = false\n }\n\n connect() {\n this.episode = this.playerTarget.getAttribute('data-episode')\n this.episode_id = this.playerTarget.getAttribute('data-episode-id')\n this.initializePlayer()\n let that = this\n this.videoPlayer = videojs(this.playerTarget, {\n playbackRates: [0.5, 0.75, 1, 1.25, 1.5, 2],\n poster: this.data.get('poster'),\n fluid: true,\n plugins: {\n seekButtons: {\n forward: 10,\n back: 10\n }\n }\n })\n\n this.videoPlayer.on(\"loadedmetadata\", function() {\n let markers = JSON.parse(that.element.getAttribute(\"data-chapters\"))\n if (markers.length == 0) {\n return\n }\n let total = this.duration()\n let p = this.controlBar.progressControl.children_[0].el_\n\n for (var i = 0; i < markers.length; i++) {\n let time = parseFloat(markers[i].time)\n\n let left = (time / total * 100) + '%'\n let el = document.createElement(\"div\")\n el.setAttribute(\"class\", \"vjs-marker\")\n el.setAttribute(\"style\", \"left:\" + left)\n el.setAttribute(\"data-time\", time)\n let span = document.createElement(\"span\")\n span.textContent = markers[i].label\n el.appendChild(span)\n\n el.addEventListener(\"click\", function () {\n that.videoPlayer.currentTime(this.getAttribute('data-time'))\n })\n p.append(el)\n }\n })\n\n this.videoPlayer.ready(function () {\n if (this.canPlayType('application/x-mpegURL') == \"maybe\") {\n this.currentTime(that.timeValue)\n that.currentTime = that.videoPlayer.currentTime()\n that.interval = setInterval(() => { that.timer() }, 10000)\n that.updateProgressBarInterval = setInterval(() => { that.updateProgressBar() }, 1000)\n } else {\n console.log(\"Your browser, network or extensions may be preventing video to play.\")\n }\n\n this.hlsQualitySelector({ displayCurrentQuality: true, placementIndex: 11 })\n\n this.on('ended', function () {\n fetch(`/stickers/watched_videos`, {\n method: 'POST',\n headers: { 'Content-Type': 'application/json' },\n body: JSON.stringify({ episode: that.episode })\n })\n\n fetch(`/episodes/${that.episode_id}/episodes/create`, {})\n })\n })\n }\n\n timer() {\n this.lastTime = this.currentTime\n this.currentTime = this.videoPlayer.currentTime()\n if (this.lastTime == this.currentTime) return true\n\n fetch(`/current_times`, {\n method: 'POST',\n headers: { 'Content-Type': 'application/json' },\n body: JSON.stringify({ episode: this.episode, current_time: this.currentTime })\n })\n\n }\n\n skipBack() {\n let currentTime = this.videoPlayer.currentTime()\n this.videoPlayer.currentTime(currentTime - 10)\n }\n\n skipForward() {\n let currentTime = this.videoPlayer.currentTime()\n this.videoPlayer.currentTime(currentTime + 10)\n }\n\n playPause() {\n try {\n if (this.videoPlayer.paused()) {\n this.videoPlayer.play()\n } else {\n this.videoPlayer.pause()\n }\n } catch(e) {\n }\n }\n\n updateProgressBar() {\n if (this.hasCurrentTimesUpdaterOutlet && this.currentTimesUpdaterOutletElement) {\n let currentTime = this.videoPlayer.currentTime()\n let totalTime = this.videoPlayer.duration()\n let percentage = (currentTime / totalTime) * 100\n let style = `width: ${percentage}%`\n this.currentTimesUpdaterOutletElement.style = style\n this.currentTimesUpdaterOutletElement.innerText = `${parseInt(percentage)}%`\n }\n }\n\n disconnect() {\n clearInterval(this.interval)\n clearInterval(this.updateProgressBarInterval)\n this.videoPlayer.dispose()\n }\n}\n", "/**\n * @license\n * Video.js 7.21.4 \n * Copyright Brightcove, Inc. \n * Available under Apache License Version 2.0\n * \n *\n * Includes vtt.js \n * Available under Apache License Version 2.0\n * \n */\n\nimport window$1 from 'global/window';\nimport document from 'global/document';\nimport _extends from '@babel/runtime/helpers/extends';\nimport keycode from 'keycode';\nimport _assertThisInitialized from '@babel/runtime/helpers/assertThisInitialized';\nimport _inheritsLoose from '@babel/runtime/helpers/inheritsLoose';\nimport safeParseTuple from 'safe-json-parse/tuple';\nimport XHR from '@videojs/xhr';\nimport vtt from 'videojs-vtt.js';\nimport _construct from '@babel/runtime/helpers/construct';\nimport _inherits from '@babel/runtime/helpers/inherits';\nimport _resolveUrl from '@videojs/vhs-utils/es/resolve-url.js';\nimport { Parser } from 'm3u8-parser';\nimport { browserSupportsCodec, DEFAULT_VIDEO_CODEC, DEFAULT_AUDIO_CODEC, muxerSupportsCodec, parseCodecs, translateLegacyCodec, codecsFromDefault, getMimeForCodec, isAudioCodec } from '@videojs/vhs-utils/es/codecs.js';\nimport { simpleTypeFromSourceType } from '@videojs/vhs-utils/es/media-types.js';\nimport { isArrayBufferView, concatTypedArrays, stringToBytes, toUint8 } from '@videojs/vhs-utils/es/byte-helpers';\nimport { generateSidxKey, parseUTCTiming, parse, addSidxSegmentsToPlaylist } from 'mpd-parser';\nimport parseSidx from 'mux.js/lib/tools/parse-sidx';\nimport { getId3Offset } from '@videojs/vhs-utils/es/id3-helpers';\nimport { detectContainerForBytes, isLikelyFmp4MediaSegment } from '@videojs/vhs-utils/es/containers';\nimport { ONE_SECOND_IN_TS } from 'mux.js/lib/utils/clock';\nimport _wrapNativeSuper from '@babel/runtime/helpers/wrapNativeSuper';\n\nvar version$5 = \"7.21.4\";\n\n/**\n * An Object that contains lifecycle hooks as keys which point to an array\n * of functions that are run when a lifecycle is triggered\n *\n * @private\n */\nvar hooks_ = {};\n/**\n * Get a list of hooks for a specific lifecycle\n *\n * @param {string} type\n * the lifecyle to get hooks from\n *\n * @param {Function|Function[]} [fn]\n * Optionally add a hook (or hooks) to the lifecycle that your are getting.\n *\n * @return {Array}\n * an array of hooks, or an empty array if there are none.\n */\n\nvar hooks = function hooks(type, fn) {\n hooks_[type] = hooks_[type] || [];\n\n if (fn) {\n hooks_[type] = hooks_[type].concat(fn);\n }\n\n return hooks_[type];\n};\n/**\n * Add a function hook to a specific videojs lifecycle.\n *\n * @param {string} type\n * the lifecycle to hook the function to.\n *\n * @param {Function|Function[]}\n * The function or array of functions to attach.\n */\n\n\nvar hook = function hook(type, fn) {\n hooks(type, fn);\n};\n/**\n * Remove a hook from a specific videojs lifecycle.\n *\n * @param {string} type\n * the lifecycle that the function hooked to\n *\n * @param {Function} fn\n * The hooked function to remove\n *\n * @return {boolean}\n * The function that was removed or undef\n */\n\n\nvar removeHook = function removeHook(type, fn) {\n var index = hooks(type).indexOf(fn);\n\n if (index <= -1) {\n return false;\n }\n\n hooks_[type] = hooks_[type].slice();\n hooks_[type].splice(index, 1);\n return true;\n};\n/**\n * Add a function hook that will only run once to a specific videojs lifecycle.\n *\n * @param {string} type\n * the lifecycle to hook the function to.\n *\n * @param {Function|Function[]}\n * The function or array of functions to attach.\n */\n\n\nvar hookOnce = function hookOnce(type, fn) {\n hooks(type, [].concat(fn).map(function (original) {\n var wrapper = function wrapper() {\n removeHook(type, wrapper);\n return original.apply(void 0, arguments);\n };\n\n return wrapper;\n }));\n};\n\n/**\n * @file fullscreen-api.js\n * @module fullscreen-api\n * @private\n */\n/**\n * Store the browser-specific methods for the fullscreen API.\n *\n * @type {Object}\n * @see [Specification]{@link https://fullscreen.spec.whatwg.org}\n * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}\n */\n\nvar FullscreenApi = {\n prefixed: true\n}; // browser API methods\n\nvar apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], // WebKit\n['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'], // Mozilla\n['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'], // Microsoft\n['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];\nvar specApi = apiMap[0];\nvar browserApi; // determine the supported set of functions\n\nfor (var i = 0; i < apiMap.length; i++) {\n // check for exitFullscreen function\n if (apiMap[i][1] in document) {\n browserApi = apiMap[i];\n break;\n }\n} // map the browser API names to the spec API names\n\n\nif (browserApi) {\n for (var _i = 0; _i < browserApi.length; _i++) {\n FullscreenApi[specApi[_i]] = browserApi[_i];\n }\n\n FullscreenApi.prefixed = browserApi[0] !== specApi[0];\n}\n\n/**\n * @file create-logger.js\n * @module create-logger\n */\n\nvar history = [];\n/**\n * Log messages to the console and history based on the type of message\n *\n * @private\n * @param {string} type\n * The name of the console method to use.\n *\n * @param {Array} args\n * The arguments to be passed to the matching console method.\n */\n\nvar LogByTypeFactory = function LogByTypeFactory(name, log) {\n return function (type, level, args) {\n var lvl = log.levels[level];\n var lvlRegExp = new RegExp(\"^(\" + lvl + \")$\");\n\n if (type !== 'log') {\n // Add the type to the front of the message when it's not \"log\".\n args.unshift(type.toUpperCase() + ':');\n } // Add console prefix after adding to history.\n\n\n args.unshift(name + ':'); // Add a clone of the args at this point to history.\n\n if (history) {\n history.push([].concat(args)); // only store 1000 history entries\n\n var splice = history.length - 1000;\n history.splice(0, splice > 0 ? splice : 0);\n } // If there's no console then don't try to output messages, but they will\n // still be stored in history.\n\n\n if (!window$1.console) {\n return;\n } // Was setting these once outside of this function, but containing them\n // in the function makes it easier to test cases where console doesn't exist\n // when the module is executed.\n\n\n var fn = window$1.console[type];\n\n if (!fn && type === 'debug') {\n // Certain browsers don't have support for console.debug. For those, we\n // should default to the closest comparable log.\n fn = window$1.console.info || window$1.console.log;\n } // Bail out if there's no console or if this type is not allowed by the\n // current logging level.\n\n\n if (!fn || !lvl || !lvlRegExp.test(type)) {\n return;\n }\n\n fn[Array.isArray(args) ? 'apply' : 'call'](window$1.console, args);\n };\n};\n\nfunction createLogger$1(name) {\n // This is the private tracking variable for logging level.\n var level = 'info'; // the curried logByType bound to the specific log and history\n\n var logByType;\n /**\n * Logs plain debug messages. Similar to `console.log`.\n *\n * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n * of our JSDoc template, we cannot properly document this as both a function\n * and a namespace, so its function signature is documented here.\n *\n * #### Arguments\n * ##### *args\n * Mixed[]\n *\n * Any combination of values that could be passed to `console.log()`.\n *\n * #### Return Value\n *\n * `undefined`\n *\n * @namespace\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged.\n */\n\n var log = function log() {\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n logByType('log', level, args);\n }; // This is the logByType helper that the logging methods below use\n\n\n logByType = LogByTypeFactory(name, log);\n /**\n * Create a new sublogger which chains the old name to the new name.\n *\n * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:\n * ```js\n * mylogger('foo');\n * // > VIDEOJS: player: foo\n * ```\n *\n * @param {string} name\n * The name to add call the new logger\n * @return {Object}\n */\n\n log.createLogger = function (subname) {\n return createLogger$1(name + ': ' + subname);\n };\n /**\n * Enumeration of available logging levels, where the keys are the level names\n * and the values are `|`-separated strings containing logging methods allowed\n * in that logging level. These strings are used to create a regular expression\n * matching the function name being called.\n *\n * Levels provided by Video.js are:\n *\n * - `off`: Matches no calls. Any value that can be cast to `false` will have\n * this effect. The most restrictive.\n * - `all`: Matches only Video.js-provided functions (`debug`, `log`,\n * `log.warn`, and `log.error`).\n * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.\n * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.\n * - `warn`: Matches `log.warn` and `log.error` calls.\n * - `error`: Matches only `log.error` calls.\n *\n * @type {Object}\n */\n\n\n log.levels = {\n all: 'debug|log|warn|error',\n off: '',\n debug: 'debug|log|warn|error',\n info: 'log|warn|error',\n warn: 'warn|error',\n error: 'error',\n DEFAULT: level\n };\n /**\n * Get or set the current logging level.\n *\n * If a string matching a key from {@link module:log.levels} is provided, acts\n * as a setter.\n *\n * @param {string} [lvl]\n * Pass a valid level to set a new logging level.\n *\n * @return {string}\n * The current logging level.\n */\n\n log.level = function (lvl) {\n if (typeof lvl === 'string') {\n if (!log.levels.hasOwnProperty(lvl)) {\n throw new Error(\"\\\"\" + lvl + \"\\\" in not a valid log level\");\n }\n\n level = lvl;\n }\n\n return level;\n };\n /**\n * Returns an array containing everything that has been logged to the history.\n *\n * This array is a shallow clone of the internal history record. However, its\n * contents are _not_ cloned; so, mutating objects inside this array will\n * mutate them in history.\n *\n * @return {Array}\n */\n\n\n log.history = function () {\n return history ? [].concat(history) : [];\n };\n /**\n * Allows you to filter the history by the given logger name\n *\n * @param {string} fname\n * The name to filter by\n *\n * @return {Array}\n * The filtered list to return\n */\n\n\n log.history.filter = function (fname) {\n return (history || []).filter(function (historyItem) {\n // if the first item in each historyItem includes `fname`, then it's a match\n return new RegExp(\".*\" + fname + \".*\").test(historyItem[0]);\n });\n };\n /**\n * Clears the internal history tracking, but does not prevent further history\n * tracking.\n */\n\n\n log.history.clear = function () {\n if (history) {\n history.length = 0;\n }\n };\n /**\n * Disable history tracking if it is currently enabled.\n */\n\n\n log.history.disable = function () {\n if (history !== null) {\n history.length = 0;\n history = null;\n }\n };\n /**\n * Enable history tracking if it is currently disabled.\n */\n\n\n log.history.enable = function () {\n if (history === null) {\n history = [];\n }\n };\n /**\n * Logs error messages. Similar to `console.error`.\n *\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged as an error\n */\n\n\n log.error = function () {\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n return logByType('error', level, args);\n };\n /**\n * Logs warning messages. Similar to `console.warn`.\n *\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged as a warning.\n */\n\n\n log.warn = function () {\n for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n args[_key3] = arguments[_key3];\n }\n\n return logByType('warn', level, args);\n };\n /**\n * Logs debug messages. Similar to `console.debug`, but may also act as a comparable\n * log if `console.debug` is not available\n *\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged as debug.\n */\n\n\n log.debug = function () {\n for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n args[_key4] = arguments[_key4];\n }\n\n return logByType('debug', level, args);\n };\n\n return log;\n}\n\n/**\n * @file log.js\n * @module log\n */\nvar log$1 = createLogger$1('VIDEOJS');\nvar createLogger = log$1.createLogger;\n\n/**\n * @file obj.js\n * @module obj\n */\n\n/**\n * @callback obj:EachCallback\n *\n * @param {Mixed} value\n * The current key for the object that is being iterated over.\n *\n * @param {string} key\n * The current key-value for object that is being iterated over\n */\n\n/**\n * @callback obj:ReduceCallback\n *\n * @param {Mixed} accum\n * The value that is accumulating over the reduce loop.\n *\n * @param {Mixed} value\n * The current key for the object that is being iterated over.\n *\n * @param {string} key\n * The current key-value for object that is being iterated over\n *\n * @return {Mixed}\n * The new accumulated value.\n */\nvar toString = Object.prototype.toString;\n/**\n * Get the keys of an Object\n *\n * @param {Object}\n * The Object to get the keys from\n *\n * @return {string[]}\n * An array of the keys from the object. Returns an empty array if the\n * object passed in was invalid or had no keys.\n *\n * @private\n */\n\nvar keys = function keys(object) {\n return isObject(object) ? Object.keys(object) : [];\n};\n/**\n * Array-like iteration for objects.\n *\n * @param {Object} object\n * The object to iterate over\n *\n * @param {obj:EachCallback} fn\n * The callback function which is called for each key in the object.\n */\n\n\nfunction each(object, fn) {\n keys(object).forEach(function (key) {\n return fn(object[key], key);\n });\n}\n/**\n * Array-like reduce for objects.\n *\n * @param {Object} object\n * The Object that you want to reduce.\n *\n * @param {Function} fn\n * A callback function which is called for each key in the object. It\n * receives the accumulated value and the per-iteration value and key\n * as arguments.\n *\n * @param {Mixed} [initial = 0]\n * Starting value\n *\n * @return {Mixed}\n * The final accumulated value.\n */\n\nfunction reduce(object, fn, initial) {\n if (initial === void 0) {\n initial = 0;\n }\n\n return keys(object).reduce(function (accum, key) {\n return fn(accum, object[key], key);\n }, initial);\n}\n/**\n * Object.assign-style object shallow merge/extend.\n *\n * @param {Object} target\n * @param {Object} ...sources\n * @return {Object}\n */\n\nfunction assign(target) {\n for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n sources[_key - 1] = arguments[_key];\n }\n\n if (Object.assign) {\n return _extends.apply(void 0, [target].concat(sources));\n }\n\n sources.forEach(function (source) {\n if (!source) {\n return;\n }\n\n each(source, function (value, key) {\n target[key] = value;\n });\n });\n return target;\n}\n/**\n * Returns whether a value is an object of any kind - including DOM nodes,\n * arrays, regular expressions, etc. Not functions, though.\n *\n * This avoids the gotcha where using `typeof` on a `null` value\n * results in `'object'`.\n *\n * @param {Object} value\n * @return {boolean}\n */\n\nfunction isObject(value) {\n return !!value && typeof value === 'object';\n}\n/**\n * Returns whether an object appears to be a \"plain\" object - that is, a\n * direct instance of `Object`.\n *\n * @param {Object} value\n * @return {boolean}\n */\n\nfunction isPlain(value) {\n return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;\n}\n\n/**\n * @file computed-style.js\n * @module computed-style\n */\n/**\n * A safe getComputedStyle.\n *\n * This is needed because in Firefox, if the player is loaded in an iframe with\n * `display:none`, then `getComputedStyle` returns `null`, so, we do a\n * null-check to make sure that the player doesn't break in these cases.\n *\n * @function\n * @param {Element} el\n * The element you want the computed style of\n *\n * @param {string} prop\n * The property name you want\n *\n * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n */\n\nfunction computedStyle(el, prop) {\n if (!el || !prop) {\n return '';\n }\n\n if (typeof window$1.getComputedStyle === 'function') {\n var computedStyleValue;\n\n try {\n computedStyleValue = window$1.getComputedStyle(el);\n } catch (e) {\n return '';\n }\n\n return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';\n }\n\n return '';\n}\n\n/**\n * @file browser.js\n * @module browser\n */\nvar USER_AGENT = window$1.navigator && window$1.navigator.userAgent || '';\nvar webkitVersionMap = /AppleWebKit\\/([\\d.]+)/i.exec(USER_AGENT);\nvar appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;\n/**\n * Whether or not this device is an iPod.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_IPOD = /iPod/i.test(USER_AGENT);\n/**\n * The detected iOS version - or `null`.\n *\n * @static\n * @const\n * @type {string|null}\n */\n\nvar IOS_VERSION = function () {\n var match = USER_AGENT.match(/OS (\\d+)_/i);\n\n if (match && match[1]) {\n return match[1];\n }\n\n return null;\n}();\n/**\n * Whether or not this is an Android device.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_ANDROID = /Android/i.test(USER_AGENT);\n/**\n * The detected Android version - or `null`.\n *\n * @static\n * @const\n * @type {number|string|null}\n */\n\nvar ANDROID_VERSION = function () {\n // This matches Android Major.Minor.Patch versions\n // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned\n var match = USER_AGENT.match(/Android (\\d+)(?:\\.(\\d+))?(?:\\.(\\d+))*/i);\n\n if (!match) {\n return null;\n }\n\n var major = match[1] && parseFloat(match[1]);\n var minor = match[2] && parseFloat(match[2]);\n\n if (major && minor) {\n return parseFloat(match[1] + '.' + match[2]);\n } else if (major) {\n return major;\n }\n\n return null;\n}();\n/**\n * Whether or not this is a native Android browser.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;\n/**\n * Whether or not this is Mozilla Firefox.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_FIREFOX = /Firefox/i.test(USER_AGENT);\n/**\n * Whether or not this is Microsoft Edge.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_EDGE = /Edg/i.test(USER_AGENT);\n/**\n * Whether or not this is Google Chrome.\n *\n * This will also be `true` for Chrome on iOS, which will have different support\n * as it is actually Safari under the hood.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));\n/**\n * The detected Google Chrome version - or `null`.\n *\n * @static\n * @const\n * @type {number|null}\n */\n\nvar CHROME_VERSION = function () {\n var match = USER_AGENT.match(/(Chrome|CriOS)\\/(\\d+)/);\n\n if (match && match[2]) {\n return parseFloat(match[2]);\n }\n\n return null;\n}();\n/**\n * The detected Internet Explorer version - or `null`.\n *\n * @static\n * @const\n * @type {number|null}\n */\n\nvar IE_VERSION = function () {\n var result = /MSIE\\s(\\d+)\\.\\d/.exec(USER_AGENT);\n var version = result && parseFloat(result[1]);\n\n if (!version && /Trident\\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {\n // IE 11 has a different user agent string than other IE versions\n version = 11.0;\n }\n\n return version;\n}();\n/**\n * Whether or not this is desktop Safari.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;\n/**\n * Whether or not this is a Windows machine.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_WINDOWS = /Windows/i.test(USER_AGENT);\n/**\n * Whether or not this device is touch-enabled.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window$1 || window$1.navigator.maxTouchPoints || window$1.DocumentTouch && window$1.document instanceof window$1.DocumentTouch));\n/**\n * Whether or not this device is an iPad.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);\n/**\n * Whether or not this device is an iPhone.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n// The Facebook app's UIWebView identifies as both an iPhone and iPad, so\n// to identify iPhones, we need to exclude iPads.\n// http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/\n\nvar IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;\n/**\n * Whether or not this is an iOS device.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;\n/**\n * Whether or not this is any flavor of Safari - including iOS.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;\n\nvar browser = /*#__PURE__*/Object.freeze({\n __proto__: null,\n IS_IPOD: IS_IPOD,\n IOS_VERSION: IOS_VERSION,\n IS_ANDROID: IS_ANDROID,\n ANDROID_VERSION: ANDROID_VERSION,\n IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,\n IS_FIREFOX: IS_FIREFOX,\n IS_EDGE: IS_EDGE,\n IS_CHROME: IS_CHROME,\n CHROME_VERSION: CHROME_VERSION,\n IE_VERSION: IE_VERSION,\n IS_SAFARI: IS_SAFARI,\n IS_WINDOWS: IS_WINDOWS,\n TOUCH_ENABLED: TOUCH_ENABLED,\n IS_IPAD: IS_IPAD,\n IS_IPHONE: IS_IPHONE,\n IS_IOS: IS_IOS,\n IS_ANY_SAFARI: IS_ANY_SAFARI\n});\n\n/**\n * @file dom.js\n * @module dom\n */\n/**\n * Detect if a value is a string with any non-whitespace characters.\n *\n * @private\n * @param {string} str\n * The string to check\n *\n * @return {boolean}\n * Will be `true` if the string is non-blank, `false` otherwise.\n *\n */\n\nfunction isNonBlankString(str) {\n // we use str.trim as it will trim any whitespace characters\n // from the front or back of non-whitespace characters. aka\n // Any string that contains non-whitespace characters will\n // still contain them after `trim` but whitespace only strings\n // will have a length of 0, failing this check.\n return typeof str === 'string' && Boolean(str.trim());\n}\n/**\n * Throws an error if the passed string has whitespace. This is used by\n * class methods to be relatively consistent with the classList API.\n *\n * @private\n * @param {string} str\n * The string to check for whitespace.\n *\n * @throws {Error}\n * Throws an error if there is whitespace in the string.\n */\n\n\nfunction throwIfWhitespace(str) {\n // str.indexOf instead of regex because str.indexOf is faster performance wise.\n if (str.indexOf(' ') >= 0) {\n throw new Error('class has illegal whitespace characters');\n }\n}\n/**\n * Produce a regular expression for matching a className within an elements className.\n *\n * @private\n * @param {string} className\n * The className to generate the RegExp for.\n *\n * @return {RegExp}\n * The RegExp that will check for a specific `className` in an elements\n * className.\n */\n\n\nfunction classRegExp(className) {\n return new RegExp('(^|\\\\s)' + className + '($|\\\\s)');\n}\n/**\n * Whether the current DOM interface appears to be real (i.e. not simulated).\n *\n * @return {boolean}\n * Will be `true` if the DOM appears to be real, `false` otherwise.\n */\n\n\nfunction isReal() {\n // Both document and window will never be undefined thanks to `global`.\n return document === window$1.document;\n}\n/**\n * Determines, via duck typing, whether or not a value is a DOM element.\n *\n * @param {Mixed} value\n * The value to check.\n *\n * @return {boolean}\n * Will be `true` if the value is a DOM element, `false` otherwise.\n */\n\nfunction isEl(value) {\n return isObject(value) && value.nodeType === 1;\n}\n/**\n * Determines if the current DOM is embedded in an iframe.\n *\n * @return {boolean}\n * Will be `true` if the DOM is embedded in an iframe, `false`\n * otherwise.\n */\n\nfunction isInFrame() {\n // We need a try/catch here because Safari will throw errors when attempting\n // to get either `parent` or `self`\n try {\n return window$1.parent !== window$1.self;\n } catch (x) {\n return true;\n }\n}\n/**\n * Creates functions to query the DOM using a given method.\n *\n * @private\n * @param {string} method\n * The method to create the query with.\n *\n * @return {Function}\n * The query method\n */\n\nfunction createQuerier(method) {\n return function (selector, context) {\n if (!isNonBlankString(selector)) {\n return document[method](null);\n }\n\n if (isNonBlankString(context)) {\n context = document.querySelector(context);\n }\n\n var ctx = isEl(context) ? context : document;\n return ctx[method] && ctx[method](selector);\n };\n}\n/**\n * Creates an element and applies properties, attributes, and inserts content.\n *\n * @param {string} [tagName='div']\n * Name of tag to be created.\n *\n * @param {Object} [properties={}]\n * Element properties to be applied.\n *\n * @param {Object} [attributes={}]\n * Element attributes to be applied.\n *\n * @param {module:dom~ContentDescriptor} content\n * A content descriptor object.\n *\n * @return {Element}\n * The element that was created.\n */\n\n\nfunction createEl(tagName, properties, attributes, content) {\n if (tagName === void 0) {\n tagName = 'div';\n }\n\n if (properties === void 0) {\n properties = {};\n }\n\n if (attributes === void 0) {\n attributes = {};\n }\n\n var el = document.createElement(tagName);\n Object.getOwnPropertyNames(properties).forEach(function (propName) {\n var val = properties[propName]; // See #2176\n // We originally were accepting both properties and attributes in the\n // same object, but that doesn't work so well.\n\n if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {\n log$1.warn('Setting attributes in the second argument of createEl()\\n' + 'has been deprecated. Use the third argument instead.\\n' + (\"createEl(type, properties, attributes). Attempting to set \" + propName + \" to \" + val + \".\"));\n el.setAttribute(propName, val); // Handle textContent since it's not supported everywhere and we have a\n // method for it.\n } else if (propName === 'textContent') {\n textContent(el, val);\n } else if (el[propName] !== val || propName === 'tabIndex') {\n el[propName] = val;\n }\n });\n Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n el.setAttribute(attrName, attributes[attrName]);\n });\n\n if (content) {\n appendContent(el, content);\n }\n\n return el;\n}\n/**\n * Injects text into an element, replacing any existing contents entirely.\n *\n * @param {Element} el\n * The element to add text content into\n *\n * @param {string} text\n * The text content to add.\n *\n * @return {Element}\n * The element with added text content.\n */\n\nfunction textContent(el, text) {\n if (typeof el.textContent === 'undefined') {\n el.innerText = text;\n } else {\n el.textContent = text;\n }\n\n return el;\n}\n/**\n * Insert an element as the first child node of another\n *\n * @param {Element} child\n * Element to insert\n *\n * @param {Element} parent\n * Element to insert child into\n */\n\nfunction prependTo(child, parent) {\n if (parent.firstChild) {\n parent.insertBefore(child, parent.firstChild);\n } else {\n parent.appendChild(child);\n }\n}\n/**\n * Check if an element has a class name.\n *\n * @param {Element} element\n * Element to check\n *\n * @param {string} classToCheck\n * Class name to check for\n *\n * @return {boolean}\n * Will be `true` if the element has a class, `false` otherwise.\n *\n * @throws {Error}\n * Throws an error if `classToCheck` has white space.\n */\n\nfunction hasClass(element, classToCheck) {\n throwIfWhitespace(classToCheck);\n\n if (element.classList) {\n return element.classList.contains(classToCheck);\n }\n\n return classRegExp(classToCheck).test(element.className);\n}\n/**\n * Add a class name to an element.\n *\n * @param {Element} element\n * Element to add class name to.\n *\n * @param {string} classToAdd\n * Class name to add.\n *\n * @return {Element}\n * The DOM element with the added class name.\n */\n\nfunction addClass(element, classToAdd) {\n if (element.classList) {\n element.classList.add(classToAdd); // Don't need to `throwIfWhitespace` here because `hasElClass` will do it\n // in the case of classList not being supported.\n } else if (!hasClass(element, classToAdd)) {\n element.className = (element.className + ' ' + classToAdd).trim();\n }\n\n return element;\n}\n/**\n * Remove a class name from an element.\n *\n * @param {Element} element\n * Element to remove a class name from.\n *\n * @param {string} classToRemove\n * Class name to remove\n *\n * @return {Element}\n * The DOM element with class name removed.\n */\n\nfunction removeClass(element, classToRemove) {\n // Protect in case the player gets disposed\n if (!element) {\n log$1.warn(\"removeClass was called with an element that doesn't exist\");\n return null;\n }\n\n if (element.classList) {\n element.classList.remove(classToRemove);\n } else {\n throwIfWhitespace(classToRemove);\n element.className = element.className.split(/\\s+/).filter(function (c) {\n return c !== classToRemove;\n }).join(' ');\n }\n\n return element;\n}\n/**\n * The callback definition for toggleClass.\n *\n * @callback module:dom~PredicateCallback\n * @param {Element} element\n * The DOM element of the Component.\n *\n * @param {string} classToToggle\n * The `className` that wants to be toggled\n *\n * @return {boolean|undefined}\n * If `true` is returned, the `classToToggle` will be added to the\n * `element`. If `false`, the `classToToggle` will be removed from\n * the `element`. If `undefined`, the callback will be ignored.\n */\n\n/**\n * Adds or removes a class name to/from an element depending on an optional\n * condition or the presence/absence of the class name.\n *\n * @param {Element} element\n * The element to toggle a class name on.\n *\n * @param {string} classToToggle\n * The class that should be toggled.\n *\n * @param {boolean|module:dom~PredicateCallback} [predicate]\n * See the return value for {@link module:dom~PredicateCallback}\n *\n * @return {Element}\n * The element with a class that has been toggled.\n */\n\nfunction toggleClass(element, classToToggle, predicate) {\n // This CANNOT use `classList` internally because IE11 does not support the\n // second parameter to the `classList.toggle()` method! Which is fine because\n // `classList` will be used by the add/remove functions.\n var has = hasClass(element, classToToggle);\n\n if (typeof predicate === 'function') {\n predicate = predicate(element, classToToggle);\n }\n\n if (typeof predicate !== 'boolean') {\n predicate = !has;\n } // If the necessary class operation matches the current state of the\n // element, no action is required.\n\n\n if (predicate === has) {\n return;\n }\n\n if (predicate) {\n addClass(element, classToToggle);\n } else {\n removeClass(element, classToToggle);\n }\n\n return element;\n}\n/**\n * Apply attributes to an HTML element.\n *\n * @param {Element} el\n * Element to add attributes to.\n *\n * @param {Object} [attributes]\n * Attributes to be applied.\n */\n\nfunction setAttributes(el, attributes) {\n Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n var attrValue = attributes[attrName];\n\n if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {\n el.removeAttribute(attrName);\n } else {\n el.setAttribute(attrName, attrValue === true ? '' : attrValue);\n }\n });\n}\n/**\n * Get an element's attribute values, as defined on the HTML tag.\n *\n * Attributes are not the same as properties. They're defined on the tag\n * or with setAttribute.\n *\n * @param {Element} tag\n * Element from which to get tag attributes.\n *\n * @return {Object}\n * All attributes of the element. Boolean attributes will be `true` or\n * `false`, others will be strings.\n */\n\nfunction getAttributes(tag) {\n var obj = {}; // known boolean attributes\n // we can check for matching boolean properties, but not all browsers\n // and not all tags know about these attributes, so, we still want to check them manually\n\n var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';\n\n if (tag && tag.attributes && tag.attributes.length > 0) {\n var attrs = tag.attributes;\n\n for (var i = attrs.length - 1; i >= 0; i--) {\n var attrName = attrs[i].name;\n var attrVal = attrs[i].value; // check for known booleans\n // the matching element property will return a value for typeof\n\n if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {\n // the value of an included boolean attribute is typically an empty\n // string ('') which would equal false if we just check for a false value.\n // we also don't want support bad code like autoplay='false'\n attrVal = attrVal !== null ? true : false;\n }\n\n obj[attrName] = attrVal;\n }\n }\n\n return obj;\n}\n/**\n * Get the value of an element's attribute.\n *\n * @param {Element} el\n * A DOM element.\n *\n * @param {string} attribute\n * Attribute to get the value of.\n *\n * @return {string}\n * The value of the attribute.\n */\n\nfunction getAttribute(el, attribute) {\n return el.getAttribute(attribute);\n}\n/**\n * Set the value of an element's attribute.\n *\n * @param {Element} el\n * A DOM element.\n *\n * @param {string} attribute\n * Attribute to set.\n *\n * @param {string} value\n * Value to set the attribute to.\n */\n\nfunction setAttribute(el, attribute, value) {\n el.setAttribute(attribute, value);\n}\n/**\n * Remove an element's attribute.\n *\n * @param {Element} el\n * A DOM element.\n *\n * @param {string} attribute\n * Attribute to remove.\n */\n\nfunction removeAttribute(el, attribute) {\n el.removeAttribute(attribute);\n}\n/**\n * Attempt to block the ability to select text.\n */\n\nfunction blockTextSelection() {\n document.body.focus();\n\n document.onselectstart = function () {\n return false;\n };\n}\n/**\n * Turn off text selection blocking.\n */\n\nfunction unblockTextSelection() {\n document.onselectstart = function () {\n return true;\n };\n}\n/**\n * Identical to the native `getBoundingClientRect` function, but ensures that\n * the method is supported at all (it is in all browsers we claim to support)\n * and that the element is in the DOM before continuing.\n *\n * This wrapper function also shims properties which are not provided by some\n * older browsers (namely, IE8).\n *\n * Additionally, some browsers do not support adding properties to a\n * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard\n * properties (except `x` and `y` which are not widely supported). This helps\n * avoid implementations where keys are non-enumerable.\n *\n * @param {Element} el\n * Element whose `ClientRect` we want to calculate.\n *\n * @return {Object|undefined}\n * Always returns a plain object - or `undefined` if it cannot.\n */\n\nfunction getBoundingClientRect(el) {\n if (el && el.getBoundingClientRect && el.parentNode) {\n var rect = el.getBoundingClientRect();\n var result = {};\n ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {\n if (rect[k] !== undefined) {\n result[k] = rect[k];\n }\n });\n\n if (!result.height) {\n result.height = parseFloat(computedStyle(el, 'height'));\n }\n\n if (!result.width) {\n result.width = parseFloat(computedStyle(el, 'width'));\n }\n\n return result;\n }\n}\n/**\n * Represents the position of a DOM element on the page.\n *\n * @typedef {Object} module:dom~Position\n *\n * @property {number} left\n * Pixels to the left.\n *\n * @property {number} top\n * Pixels from the top.\n */\n\n/**\n * Get the position of an element in the DOM.\n *\n * Uses `getBoundingClientRect` technique from John Resig.\n *\n * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/\n *\n * @param {Element} el\n * Element from which to get offset.\n *\n * @return {module:dom~Position}\n * The position of the element that was passed in.\n */\n\nfunction findPosition(el) {\n if (!el || el && !el.offsetParent) {\n return {\n left: 0,\n top: 0,\n width: 0,\n height: 0\n };\n }\n\n var width = el.offsetWidth;\n var height = el.offsetHeight;\n var left = 0;\n var top = 0;\n\n while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {\n left += el.offsetLeft;\n top += el.offsetTop;\n el = el.offsetParent;\n }\n\n return {\n left: left,\n top: top,\n width: width,\n height: height\n };\n}\n/**\n * Represents x and y coordinates for a DOM element or mouse pointer.\n *\n * @typedef {Object} module:dom~Coordinates\n *\n * @property {number} x\n * x coordinate in pixels\n *\n * @property {number} y\n * y coordinate in pixels\n */\n\n/**\n * Get the pointer position within an element.\n *\n * The base on the coordinates are the bottom left of the element.\n *\n * @param {Element} el\n * Element on which to get the pointer position on.\n *\n * @param {EventTarget~Event} event\n * Event object.\n *\n * @return {module:dom~Coordinates}\n * A coordinates object corresponding to the mouse position.\n *\n */\n\nfunction getPointerPosition(el, event) {\n var translated = {\n x: 0,\n y: 0\n };\n\n if (IS_IOS) {\n var item = el;\n\n while (item && item.nodeName.toLowerCase() !== 'html') {\n var transform = computedStyle(item, 'transform');\n\n if (/^matrix/.test(transform)) {\n var values = transform.slice(7, -1).split(/,\\s/).map(Number);\n translated.x += values[4];\n translated.y += values[5];\n } else if (/^matrix3d/.test(transform)) {\n var _values = transform.slice(9, -1).split(/,\\s/).map(Number);\n\n translated.x += _values[12];\n translated.y += _values[13];\n }\n\n item = item.parentNode;\n }\n }\n\n var position = {};\n var boxTarget = findPosition(event.target);\n var box = findPosition(el);\n var boxW = box.width;\n var boxH = box.height;\n var offsetY = event.offsetY - (box.top - boxTarget.top);\n var offsetX = event.offsetX - (box.left - boxTarget.left);\n\n if (event.changedTouches) {\n offsetX = event.changedTouches[0].pageX - box.left;\n offsetY = event.changedTouches[0].pageY + box.top;\n\n if (IS_IOS) {\n offsetX -= translated.x;\n offsetY -= translated.y;\n }\n }\n\n position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));\n position.x = Math.max(0, Math.min(1, offsetX / boxW));\n return position;\n}\n/**\n * Determines, via duck typing, whether or not a value is a text node.\n *\n * @param {Mixed} value\n * Check if this value is a text node.\n *\n * @return {boolean}\n * Will be `true` if the value is a text node, `false` otherwise.\n */\n\nfunction isTextNode(value) {\n return isObject(value) && value.nodeType === 3;\n}\n/**\n * Empties the contents of an element.\n *\n * @param {Element} el\n * The element to empty children from\n *\n * @return {Element}\n * The element with no children\n */\n\nfunction emptyEl(el) {\n while (el.firstChild) {\n el.removeChild(el.firstChild);\n }\n\n return el;\n}\n/**\n * This is a mixed value that describes content to be injected into the DOM\n * via some method. It can be of the following types:\n *\n * Type | Description\n * -----------|-------------\n * `string` | The value will be normalized into a text node.\n * `Element` | The value will be accepted as-is.\n * `TextNode` | The value will be accepted as-is.\n * `Array` | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).\n * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.\n *\n * @typedef {string|Element|TextNode|Array|Function} module:dom~ContentDescriptor\n */\n\n/**\n * Normalizes content for eventual insertion into the DOM.\n *\n * This allows a wide range of content definition methods, but helps protect\n * from falling into the trap of simply writing to `innerHTML`, which could\n * be an XSS concern.\n *\n * The content for an element can be passed in multiple types and\n * combinations, whose behavior is as follows:\n *\n * @param {module:dom~ContentDescriptor} content\n * A content descriptor value.\n *\n * @return {Array}\n * All of the content that was passed in, normalized to an array of\n * elements or text nodes.\n */\n\nfunction normalizeContent(content) {\n // First, invoke content if it is a function. If it produces an array,\n // that needs to happen before normalization.\n if (typeof content === 'function') {\n content = content();\n } // Next up, normalize to an array, so one or many items can be normalized,\n // filtered, and returned.\n\n\n return (Array.isArray(content) ? content : [content]).map(function (value) {\n // First, invoke value if it is a function to produce a new value,\n // which will be subsequently normalized to a Node of some kind.\n if (typeof value === 'function') {\n value = value();\n }\n\n if (isEl(value) || isTextNode(value)) {\n return value;\n }\n\n if (typeof value === 'string' && /\\S/.test(value)) {\n return document.createTextNode(value);\n }\n }).filter(function (value) {\n return value;\n });\n}\n/**\n * Normalizes and appends content to an element.\n *\n * @param {Element} el\n * Element to append normalized content to.\n *\n * @param {module:dom~ContentDescriptor} content\n * A content descriptor value.\n *\n * @return {Element}\n * The element with appended normalized content.\n */\n\nfunction appendContent(el, content) {\n normalizeContent(content).forEach(function (node) {\n return el.appendChild(node);\n });\n return el;\n}\n/**\n * Normalizes and inserts content into an element; this is identical to\n * `appendContent()`, except it empties the element first.\n *\n * @param {Element} el\n * Element to insert normalized content into.\n *\n * @param {module:dom~ContentDescriptor} content\n * A content descriptor value.\n *\n * @return {Element}\n * The element with inserted normalized content.\n */\n\nfunction insertContent(el, content) {\n return appendContent(emptyEl(el), content);\n}\n/**\n * Check if an event was a single left click.\n *\n * @param {EventTarget~Event} event\n * Event object.\n *\n * @return {boolean}\n * Will be `true` if a single left click, `false` otherwise.\n */\n\nfunction isSingleLeftClick(event) {\n // Note: if you create something draggable, be sure to\n // call it on both `mousedown` and `mousemove` event,\n // otherwise `mousedown` should be enough for a button\n if (event.button === undefined && event.buttons === undefined) {\n // Why do we need `buttons` ?\n // Because, middle mouse sometimes have this:\n // e.button === 0 and e.buttons === 4\n // Furthermore, we want to prevent combination click, something like\n // HOLD middlemouse then left click, that would be\n // e.button === 0, e.buttons === 5\n // just `button` is not gonna work\n // Alright, then what this block does ?\n // this is for chrome `simulate mobile devices`\n // I want to support this as well\n return true;\n }\n\n if (event.button === 0 && event.buttons === undefined) {\n // Touch screen, sometimes on some specific device, `buttons`\n // doesn't have anything (safari on ios, blackberry...)\n return true;\n } // `mouseup` event on a single left click has\n // `button` and `buttons` equal to 0\n\n\n if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {\n return true;\n }\n\n if (event.button !== 0 || event.buttons !== 1) {\n // This is the reason we have those if else block above\n // if any special case we can catch and let it slide\n // we do it above, when get to here, this definitely\n // is-not-left-click\n return false;\n }\n\n return true;\n}\n/**\n * Finds a single DOM element matching `selector` within the optional\n * `context` of another DOM element (defaulting to `document`).\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelector`.\n *\n * @param {Element|String} [context=document]\n * A DOM element within which to query. Can also be a selector\n * string in which case the first matching element will be used\n * as context. If missing (or no element matches selector), falls\n * back to `document`.\n *\n * @return {Element|null}\n * The element that was found or null.\n */\n\nvar $ = createQuerier('querySelector');\n/**\n * Finds a all DOM elements matching `selector` within the optional\n * `context` of another DOM element (defaulting to `document`).\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelectorAll`.\n *\n * @param {Element|String} [context=document]\n * A DOM element within which to query. Can also be a selector\n * string in which case the first matching element will be used\n * as context. If missing (or no element matches selector), falls\n * back to `document`.\n *\n * @return {NodeList}\n * A element list of elements that were found. Will be empty if none\n * were found.\n *\n */\n\nvar $$ = createQuerier('querySelectorAll');\n\nvar Dom = /*#__PURE__*/Object.freeze({\n __proto__: null,\n isReal: isReal,\n isEl: isEl,\n isInFrame: isInFrame,\n createEl: createEl,\n textContent: textContent,\n prependTo: prependTo,\n hasClass: hasClass,\n addClass: addClass,\n removeClass: removeClass,\n toggleClass: toggleClass,\n setAttributes: setAttributes,\n getAttributes: getAttributes,\n getAttribute: getAttribute,\n setAttribute: setAttribute,\n removeAttribute: removeAttribute,\n blockTextSelection: blockTextSelection,\n unblockTextSelection: unblockTextSelection,\n getBoundingClientRect: getBoundingClientRect,\n findPosition: findPosition,\n getPointerPosition: getPointerPosition,\n isTextNode: isTextNode,\n emptyEl: emptyEl,\n normalizeContent: normalizeContent,\n appendContent: appendContent,\n insertContent: insertContent,\n isSingleLeftClick: isSingleLeftClick,\n $: $,\n $$: $$\n});\n\n/**\n * @file setup.js - Functions for setting up a player without\n * user interaction based on the data-setup `attribute` of the video tag.\n *\n * @module setup\n */\nvar _windowLoaded = false;\nvar videojs$1;\n/**\n * Set up any tags that have a data-setup `attribute` when the player is started.\n */\n\nvar autoSetup = function autoSetup() {\n if (videojs$1.options.autoSetup === false) {\n return;\n }\n\n var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));\n var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));\n var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));\n var mediaEls = vids.concat(audios, divs); // Check if any media elements exist\n\n if (mediaEls && mediaEls.length > 0) {\n for (var i = 0, e = mediaEls.length; i < e; i++) {\n var mediaEl = mediaEls[i]; // Check if element exists, has getAttribute func.\n\n if (mediaEl && mediaEl.getAttribute) {\n // Make sure this player hasn't already been set up.\n if (mediaEl.player === undefined) {\n var options = mediaEl.getAttribute('data-setup'); // Check if data-setup attr exists.\n // We only auto-setup if they've added the data-setup attr.\n\n if (options !== null) {\n // Create new video.js instance.\n videojs$1(mediaEl);\n }\n } // If getAttribute isn't defined, we need to wait for the DOM.\n\n } else {\n autoSetupTimeout(1);\n break;\n }\n } // No videos were found, so keep looping unless page is finished loading.\n\n } else if (!_windowLoaded) {\n autoSetupTimeout(1);\n }\n};\n/**\n * Wait until the page is loaded before running autoSetup. This will be called in\n * autoSetup if `hasLoaded` returns false.\n *\n * @param {number} wait\n * How long to wait in ms\n *\n * @param {module:videojs} [vjs]\n * The videojs library function\n */\n\n\nfunction autoSetupTimeout(wait, vjs) {\n // Protect against breakage in non-browser environments\n if (!isReal()) {\n return;\n }\n\n if (vjs) {\n videojs$1 = vjs;\n }\n\n window$1.setTimeout(autoSetup, wait);\n}\n/**\n * Used to set the internal tracking of window loaded state to true.\n *\n * @private\n */\n\n\nfunction setWindowLoaded() {\n _windowLoaded = true;\n window$1.removeEventListener('load', setWindowLoaded);\n}\n\nif (isReal()) {\n if (document.readyState === 'complete') {\n setWindowLoaded();\n } else {\n /**\n * Listen for the load event on window, and set _windowLoaded to true.\n *\n * We use a standard event listener here to avoid incrementing the GUID\n * before any players are created.\n *\n * @listens load\n */\n window$1.addEventListener('load', setWindowLoaded);\n }\n}\n\n/**\n * @file stylesheet.js\n * @module stylesheet\n */\n/**\n * Create a DOM syle element given a className for it.\n *\n * @param {string} className\n * The className to add to the created style element.\n *\n * @return {Element}\n * The element that was created.\n */\n\nvar createStyleElement = function createStyleElement(className) {\n var style = document.createElement('style');\n style.className = className;\n return style;\n};\n/**\n * Add text to a DOM element.\n *\n * @param {Element} el\n * The Element to add text content to.\n *\n * @param {string} content\n * The text to add to the element.\n */\n\nvar setTextContent = function setTextContent(el, content) {\n if (el.styleSheet) {\n el.styleSheet.cssText = content;\n } else {\n el.textContent = content;\n }\n};\n\n/**\n * @file guid.js\n * @module guid\n */\n// Default value for GUIDs. This allows us to reset the GUID counter in tests.\n//\n// The initial GUID is 3 because some users have come to rely on the first\n// default player ID ending up as `vjs_video_3`.\n//\n// See: https://github.com/videojs/video.js/pull/6216\nvar _initialGuid = 3;\n/**\n * Unique ID for an element or function\n *\n * @type {Number}\n */\n\nvar _guid = _initialGuid;\n/**\n * Get a unique auto-incrementing ID by number that has not been returned before.\n *\n * @return {number}\n * A new unique ID.\n */\n\nfunction newGUID() {\n return _guid++;\n}\n\n/**\n * @file dom-data.js\n * @module dom-data\n */\nvar FakeWeakMap;\n\nif (!window$1.WeakMap) {\n FakeWeakMap = /*#__PURE__*/function () {\n function FakeWeakMap() {\n this.vdata = 'vdata' + Math.floor(window$1.performance && window$1.performance.now() || Date.now());\n this.data = {};\n }\n\n var _proto = FakeWeakMap.prototype;\n\n _proto.set = function set(key, value) {\n var access = key[this.vdata] || newGUID();\n\n if (!key[this.vdata]) {\n key[this.vdata] = access;\n }\n\n this.data[access] = value;\n return this;\n };\n\n _proto.get = function get(key) {\n var access = key[this.vdata]; // we have data, return it\n\n if (access) {\n return this.data[access];\n } // we don't have data, return nothing.\n // return undefined explicitly as that's the contract for this method\n\n\n log$1('We have no data for this element', key);\n return undefined;\n };\n\n _proto.has = function has(key) {\n var access = key[this.vdata];\n return access in this.data;\n };\n\n _proto[\"delete\"] = function _delete(key) {\n var access = key[this.vdata];\n\n if (access) {\n delete this.data[access];\n delete key[this.vdata];\n }\n };\n\n return FakeWeakMap;\n }();\n}\n/**\n * Element Data Store.\n *\n * Allows for binding data to an element without putting it directly on the\n * element. Ex. Event listeners are stored here.\n * (also from jsninja.com, slightly modified and updated for closure compiler)\n *\n * @type {Object}\n * @private\n */\n\n\nvar DomData = window$1.WeakMap ? new WeakMap() : new FakeWeakMap();\n\n/**\n * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)\n * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)\n * This should work very similarly to jQuery's events, however it's based off the book version which isn't as\n * robust as jquery's, so there's probably some differences.\n *\n * @file events.js\n * @module events\n */\n/**\n * Clean up the listener cache and dispatchers\n *\n * @param {Element|Object} elem\n * Element to clean up\n *\n * @param {string} type\n * Type of event to clean up\n */\n\nfunction _cleanUpEvents(elem, type) {\n if (!DomData.has(elem)) {\n return;\n }\n\n var data = DomData.get(elem); // Remove the events of a particular type if there are none left\n\n if (data.handlers[type].length === 0) {\n delete data.handlers[type]; // data.handlers[type] = null;\n // Setting to null was causing an error with data.handlers\n // Remove the meta-handler from the element\n\n if (elem.removeEventListener) {\n elem.removeEventListener(type, data.dispatcher, false);\n } else if (elem.detachEvent) {\n elem.detachEvent('on' + type, data.dispatcher);\n }\n } // Remove the events object if there are no types left\n\n\n if (Object.getOwnPropertyNames(data.handlers).length <= 0) {\n delete data.handlers;\n delete data.dispatcher;\n delete data.disabled;\n } // Finally remove the element data if there is no data left\n\n\n if (Object.getOwnPropertyNames(data).length === 0) {\n DomData[\"delete\"](elem);\n }\n}\n/**\n * Loops through an array of event types and calls the requested method for each type.\n *\n * @param {Function} fn\n * The event method we want to use.\n *\n * @param {Element|Object} elem\n * Element or object to bind listeners to\n *\n * @param {string} type\n * Type of event to bind to.\n *\n * @param {EventTarget~EventListener} callback\n * Event listener.\n */\n\n\nfunction _handleMultipleEvents(fn, elem, types, callback) {\n types.forEach(function (type) {\n // Call the event method for each one of the types\n fn(elem, type, callback);\n });\n}\n/**\n * Fix a native event to have standard property values\n *\n * @param {Object} event\n * Event object to fix.\n *\n * @return {Object}\n * Fixed event object.\n */\n\n\nfunction fixEvent(event) {\n if (event.fixed_) {\n return event;\n }\n\n function returnTrue() {\n return true;\n }\n\n function returnFalse() {\n return false;\n } // Test if fixing up is needed\n // Used to check if !event.stopPropagation instead of isPropagationStopped\n // But native events return true for stopPropagation, but don't have\n // other expected methods like isPropagationStopped. Seems to be a problem\n // with the Javascript Ninja code. So we're just overriding all events now.\n\n\n if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {\n var old = event || window$1.event;\n event = {}; // Clone the old object so that we can modify the values event = {};\n // IE8 Doesn't like when you mess with native event properties\n // Firefox returns false for event.hasOwnProperty('type') and other props\n // which makes copying more difficult.\n // TODO: Probably best to create a whitelist of event props\n\n for (var key in old) {\n // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y\n // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation\n // and webkitMovementX/Y\n // Lighthouse complains if Event.path is copied\n if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') {\n // Chrome 32+ warns if you try to copy deprecated returnValue, but\n // we still want to if preventDefault isn't supported (IE8).\n if (!(key === 'returnValue' && old.preventDefault)) {\n event[key] = old[key];\n }\n }\n } // The event occurred on this element\n\n\n if (!event.target) {\n event.target = event.srcElement || document;\n } // Handle which other element the event is related to\n\n\n if (!event.relatedTarget) {\n event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;\n } // Stop the default browser action\n\n\n event.preventDefault = function () {\n if (old.preventDefault) {\n old.preventDefault();\n }\n\n event.returnValue = false;\n old.returnValue = false;\n event.defaultPrevented = true;\n };\n\n event.defaultPrevented = false; // Stop the event from bubbling\n\n event.stopPropagation = function () {\n if (old.stopPropagation) {\n old.stopPropagation();\n }\n\n event.cancelBubble = true;\n old.cancelBubble = true;\n event.isPropagationStopped = returnTrue;\n };\n\n event.isPropagationStopped = returnFalse; // Stop the event from bubbling and executing other handlers\n\n event.stopImmediatePropagation = function () {\n if (old.stopImmediatePropagation) {\n old.stopImmediatePropagation();\n }\n\n event.isImmediatePropagationStopped = returnTrue;\n event.stopPropagation();\n };\n\n event.isImmediatePropagationStopped = returnFalse; // Handle mouse position\n\n if (event.clientX !== null && event.clientX !== undefined) {\n var doc = document.documentElement;\n var body = document.body;\n event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);\n event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);\n } // Handle key presses\n\n\n event.which = event.charCode || event.keyCode; // Fix button for mouse clicks:\n // 0 == left; 1 == middle; 2 == right\n\n if (event.button !== null && event.button !== undefined) {\n // The following is disabled because it does not pass videojs-standard\n // and... yikes.\n\n /* eslint-disable */\n event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;\n /* eslint-enable */\n }\n }\n\n event.fixed_ = true; // Returns fixed-up instance\n\n return event;\n}\n/**\n * Whether passive event listeners are supported\n */\n\nvar _supportsPassive;\n\nvar supportsPassive = function supportsPassive() {\n if (typeof _supportsPassive !== 'boolean') {\n _supportsPassive = false;\n\n try {\n var opts = Object.defineProperty({}, 'passive', {\n get: function get() {\n _supportsPassive = true;\n }\n });\n window$1.addEventListener('test', null, opts);\n window$1.removeEventListener('test', null, opts);\n } catch (e) {// disregard\n }\n }\n\n return _supportsPassive;\n};\n/**\n * Touch events Chrome expects to be passive\n */\n\n\nvar passiveEvents = ['touchstart', 'touchmove'];\n/**\n * Add an event listener to element\n * It stores the handler function in a separate cache object\n * and adds a generic handler to the element's event,\n * along with a unique id (guid) to the element.\n *\n * @param {Element|Object} elem\n * Element or object to bind listeners to\n *\n * @param {string|string[]} type\n * Type of event to bind to.\n *\n * @param {EventTarget~EventListener} fn\n * Event listener.\n */\n\nfunction on(elem, type, fn) {\n if (Array.isArray(type)) {\n return _handleMultipleEvents(on, elem, type, fn);\n }\n\n if (!DomData.has(elem)) {\n DomData.set(elem, {});\n }\n\n var data = DomData.get(elem); // We need a place to store all our handler data\n\n if (!data.handlers) {\n data.handlers = {};\n }\n\n if (!data.handlers[type]) {\n data.handlers[type] = [];\n }\n\n if (!fn.guid) {\n fn.guid = newGUID();\n }\n\n data.handlers[type].push(fn);\n\n if (!data.dispatcher) {\n data.disabled = false;\n\n data.dispatcher = function (event, hash) {\n if (data.disabled) {\n return;\n }\n\n event = fixEvent(event);\n var handlers = data.handlers[event.type];\n\n if (handlers) {\n // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.\n var handlersCopy = handlers.slice(0);\n\n for (var m = 0, n = handlersCopy.length; m < n; m++) {\n if (event.isImmediatePropagationStopped()) {\n break;\n } else {\n try {\n handlersCopy[m].call(elem, event, hash);\n } catch (e) {\n log$1.error(e);\n }\n }\n }\n }\n };\n }\n\n if (data.handlers[type].length === 1) {\n if (elem.addEventListener) {\n var options = false;\n\n if (supportsPassive() && passiveEvents.indexOf(type) > -1) {\n options = {\n passive: true\n };\n }\n\n elem.addEventListener(type, data.dispatcher, options);\n } else if (elem.attachEvent) {\n elem.attachEvent('on' + type, data.dispatcher);\n }\n }\n}\n/**\n * Removes event listeners from an element\n *\n * @param {Element|Object} elem\n * Object to remove listeners from.\n *\n * @param {string|string[]} [type]\n * Type of listener to remove. Don't include to remove all events from element.\n *\n * @param {EventTarget~EventListener} [fn]\n * Specific listener to remove. Don't include to remove listeners for an event\n * type.\n */\n\nfunction off(elem, type, fn) {\n // Don't want to add a cache object through getElData if not needed\n if (!DomData.has(elem)) {\n return;\n }\n\n var data = DomData.get(elem); // If no events exist, nothing to unbind\n\n if (!data.handlers) {\n return;\n }\n\n if (Array.isArray(type)) {\n return _handleMultipleEvents(off, elem, type, fn);\n } // Utility function\n\n\n var removeType = function removeType(el, t) {\n data.handlers[t] = [];\n\n _cleanUpEvents(el, t);\n }; // Are we removing all bound events?\n\n\n if (type === undefined) {\n for (var t in data.handlers) {\n if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {\n removeType(elem, t);\n }\n }\n\n return;\n }\n\n var handlers = data.handlers[type]; // If no handlers exist, nothing to unbind\n\n if (!handlers) {\n return;\n } // If no listener was provided, remove all listeners for type\n\n\n if (!fn) {\n removeType(elem, type);\n return;\n } // We're only removing a single handler\n\n\n if (fn.guid) {\n for (var n = 0; n < handlers.length; n++) {\n if (handlers[n].guid === fn.guid) {\n handlers.splice(n--, 1);\n }\n }\n }\n\n _cleanUpEvents(elem, type);\n}\n/**\n * Trigger an event for an element\n *\n * @param {Element|Object} elem\n * Element to trigger an event on\n *\n * @param {EventTarget~Event|string} event\n * A string (the type) or an event object with a type attribute\n *\n * @param {Object} [hash]\n * data hash to pass along with the event\n *\n * @return {boolean|undefined}\n * Returns the opposite of `defaultPrevented` if default was\n * prevented. Otherwise, returns `undefined`\n */\n\nfunction trigger(elem, event, hash) {\n // Fetches element data and a reference to the parent (for bubbling).\n // Don't want to add a data object to cache for every parent,\n // so checking hasElData first.\n var elemData = DomData.has(elem) ? DomData.get(elem) : {};\n var parent = elem.parentNode || elem.ownerDocument; // type = event.type || event,\n // handler;\n // If an event name was passed as a string, creates an event out of it\n\n if (typeof event === 'string') {\n event = {\n type: event,\n target: elem\n };\n } else if (!event.target) {\n event.target = elem;\n } // Normalizes the event properties.\n\n\n event = fixEvent(event); // If the passed element has a dispatcher, executes the established handlers.\n\n if (elemData.dispatcher) {\n elemData.dispatcher.call(elem, event, hash);\n } // Unless explicitly stopped or the event does not bubble (e.g. media events)\n // recursively calls this function to bubble the event up the DOM.\n\n\n if (parent && !event.isPropagationStopped() && event.bubbles === true) {\n trigger.call(null, parent, event, hash); // If at the top of the DOM, triggers the default action unless disabled.\n } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {\n if (!DomData.has(event.target)) {\n DomData.set(event.target, {});\n }\n\n var targetData = DomData.get(event.target); // Checks if the target has a default action for this event.\n\n if (event.target[event.type]) {\n // Temporarily disables event dispatching on the target as we have already executed the handler.\n targetData.disabled = true; // Executes the default action.\n\n if (typeof event.target[event.type] === 'function') {\n event.target[event.type]();\n } // Re-enables event dispatching.\n\n\n targetData.disabled = false;\n }\n } // Inform the triggerer if the default was prevented by returning false\n\n\n return !event.defaultPrevented;\n}\n/**\n * Trigger a listener only once for an event.\n *\n * @param {Element|Object} elem\n * Element or object to bind to.\n *\n * @param {string|string[]} type\n * Name/type of event\n *\n * @param {Event~EventListener} fn\n * Event listener function\n */\n\nfunction one(elem, type, fn) {\n if (Array.isArray(type)) {\n return _handleMultipleEvents(one, elem, type, fn);\n }\n\n var func = function func() {\n off(elem, type, func);\n fn.apply(this, arguments);\n }; // copy the guid to the new function so it can removed using the original function's ID\n\n\n func.guid = fn.guid = fn.guid || newGUID();\n on(elem, type, func);\n}\n/**\n * Trigger a listener only once and then turn if off for all\n * configured events\n *\n * @param {Element|Object} elem\n * Element or object to bind to.\n *\n * @param {string|string[]} type\n * Name/type of event\n *\n * @param {Event~EventListener} fn\n * Event listener function\n */\n\nfunction any(elem, type, fn) {\n var func = function func() {\n off(elem, type, func);\n fn.apply(this, arguments);\n }; // copy the guid to the new function so it can removed using the original function's ID\n\n\n func.guid = fn.guid = fn.guid || newGUID(); // multiple ons, but one off for everything\n\n on(elem, type, func);\n}\n\nvar Events = /*#__PURE__*/Object.freeze({\n __proto__: null,\n fixEvent: fixEvent,\n on: on,\n off: off,\n trigger: trigger,\n one: one,\n any: any\n});\n\n/**\n * @file fn.js\n * @module fn\n */\nvar UPDATE_REFRESH_INTERVAL = 30;\n/**\n * Bind (a.k.a proxy or context). A simple method for changing the context of\n * a function.\n *\n * It also stores a unique id on the function so it can be easily removed from\n * events.\n *\n * @function\n * @param {Mixed} context\n * The object to bind as scope.\n *\n * @param {Function} fn\n * The function to be bound to a scope.\n *\n * @param {number} [uid]\n * An optional unique ID for the function to be set\n *\n * @return {Function}\n * The new function that will be bound into the context given\n */\n\nvar bind = function bind(context, fn, uid) {\n // Make sure the function has a unique ID\n if (!fn.guid) {\n fn.guid = newGUID();\n } // Create the new function that changes the context\n\n\n var bound = fn.bind(context); // Allow for the ability to individualize this function\n // Needed in the case where multiple objects might share the same prototype\n // IF both items add an event listener with the same function, then you try to remove just one\n // it will remove both because they both have the same guid.\n // when using this, you need to use the bind method when you remove the listener as well.\n // currently used in text tracks\n\n bound.guid = uid ? uid + '_' + fn.guid : fn.guid;\n return bound;\n};\n/**\n * Wraps the given function, `fn`, with a new function that only invokes `fn`\n * at most once per every `wait` milliseconds.\n *\n * @function\n * @param {Function} fn\n * The function to be throttled.\n *\n * @param {number} wait\n * The number of milliseconds by which to throttle.\n *\n * @return {Function}\n */\n\nvar throttle = function throttle(fn, wait) {\n var last = window$1.performance.now();\n\n var throttled = function throttled() {\n var now = window$1.performance.now();\n\n if (now - last >= wait) {\n fn.apply(void 0, arguments);\n last = now;\n }\n };\n\n return throttled;\n};\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked.\n *\n * Inspired by lodash and underscore implementations.\n *\n * @function\n * @param {Function} func\n * The function to wrap with debounce behavior.\n *\n * @param {number} wait\n * The number of milliseconds to wait after the last invocation.\n *\n * @param {boolean} [immediate]\n * Whether or not to invoke the function immediately upon creation.\n *\n * @param {Object} [context=window]\n * The \"context\" in which the debounced function should debounce. For\n * example, if this function should be tied to a Video.js player,\n * the player can be passed here. Alternatively, defaults to the\n * global `window` object.\n *\n * @return {Function}\n * A debounced function.\n */\n\nvar debounce = function debounce(func, wait, immediate, context) {\n if (context === void 0) {\n context = window$1;\n }\n\n var timeout;\n\n var cancel = function cancel() {\n context.clearTimeout(timeout);\n timeout = null;\n };\n /* eslint-disable consistent-this */\n\n\n var debounced = function debounced() {\n var self = this;\n var args = arguments;\n\n var _later = function later() {\n timeout = null;\n _later = null;\n\n if (!immediate) {\n func.apply(self, args);\n }\n };\n\n if (!timeout && immediate) {\n func.apply(self, args);\n }\n\n context.clearTimeout(timeout);\n timeout = context.setTimeout(_later, wait);\n };\n /* eslint-enable consistent-this */\n\n\n debounced.cancel = cancel;\n return debounced;\n};\n\n/**\n * @file src/js/event-target.js\n */\n/**\n * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It\n * adds shorthand functions that wrap around lengthy functions. For example:\n * the `on` function is a wrapper around `addEventListener`.\n *\n * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}\n * @class EventTarget\n */\n\nvar EventTarget$2 = function EventTarget() {};\n/**\n * A Custom DOM event.\n *\n * @typedef {Object} EventTarget~Event\n * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}\n */\n\n/**\n * All event listeners should follow the following format.\n *\n * @callback EventTarget~EventListener\n * @this {EventTarget}\n *\n * @param {EventTarget~Event} event\n * the event that triggered this function\n *\n * @param {Object} [hash]\n * hash of data sent during the event\n */\n\n/**\n * An object containing event names as keys and booleans as values.\n *\n * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}\n * will have extra functionality. See that function for more information.\n *\n * @property EventTarget.prototype.allowedEvents_\n * @private\n */\n\n\nEventTarget$2.prototype.allowedEvents_ = {};\n/**\n * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a\n * function that will get called when an event with a certain name gets triggered.\n *\n * @param {string|string[]} type\n * An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n * The function to call with `EventTarget`s\n */\n\nEventTarget$2.prototype.on = function (type, fn) {\n // Remove the addEventListener alias before calling Events.on\n // so we don't get into an infinite type loop\n var ael = this.addEventListener;\n\n this.addEventListener = function () {};\n\n on(this, type, fn);\n this.addEventListener = ael;\n};\n/**\n * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#on}\n */\n\n\nEventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;\n/**\n * Removes an `event listener` for a specific event from an instance of `EventTarget`.\n * This makes it so that the `event listener` will no longer get called when the\n * named event happens.\n *\n * @param {string|string[]} type\n * An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n * The function to remove.\n */\n\nEventTarget$2.prototype.off = function (type, fn) {\n off(this, type, fn);\n};\n/**\n * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#off}\n */\n\n\nEventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;\n/**\n * This function will add an `event listener` that gets triggered only once. After the\n * first trigger it will get removed. This is like adding an `event listener`\n * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.\n *\n * @param {string|string[]} type\n * An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n * The function to be called once for each event name.\n */\n\nEventTarget$2.prototype.one = function (type, fn) {\n // Remove the addEventListener aliasing Events.on\n // so we don't get into an infinite type loop\n var ael = this.addEventListener;\n\n this.addEventListener = function () {};\n\n one(this, type, fn);\n this.addEventListener = ael;\n};\n\nEventTarget$2.prototype.any = function (type, fn) {\n // Remove the addEventListener aliasing Events.on\n // so we don't get into an infinite type loop\n var ael = this.addEventListener;\n\n this.addEventListener = function () {};\n\n any(this, type, fn);\n this.addEventListener = ael;\n};\n/**\n * This function causes an event to happen. This will then cause any `event listeners`\n * that are waiting for that event, to get called. If there are no `event listeners`\n * for an event then nothing will happen.\n *\n * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.\n * Trigger will also call the `on` + `uppercaseEventName` function.\n *\n * Example:\n * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call\n * `onClick` if it exists.\n *\n * @param {string|EventTarget~Event|Object} event\n * The name of the event, an `Event`, or an object with a key of type set to\n * an event name.\n */\n\n\nEventTarget$2.prototype.trigger = function (event) {\n var type = event.type || event; // deprecation\n // In a future version we should default target to `this`\n // similar to how we default the target to `elem` in\n // `Events.trigger`. Right now the default `target` will be\n // `document` due to the `Event.fixEvent` call.\n\n if (typeof event === 'string') {\n event = {\n type: type\n };\n }\n\n event = fixEvent(event);\n\n if (this.allowedEvents_[type] && this['on' + type]) {\n this['on' + type](event);\n }\n\n trigger(this, event);\n};\n/**\n * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#trigger}\n */\n\n\nEventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;\nvar EVENT_MAP;\n\nEventTarget$2.prototype.queueTrigger = function (event) {\n var _this = this;\n\n // only set up EVENT_MAP if it'll be used\n if (!EVENT_MAP) {\n EVENT_MAP = new Map();\n }\n\n var type = event.type || event;\n var map = EVENT_MAP.get(this);\n\n if (!map) {\n map = new Map();\n EVENT_MAP.set(this, map);\n }\n\n var oldTimeout = map.get(type);\n map[\"delete\"](type);\n window$1.clearTimeout(oldTimeout);\n var timeout = window$1.setTimeout(function () {\n map[\"delete\"](type); // if we cleared out all timeouts for the current target, delete its map\n\n if (map.size === 0) {\n map = null;\n EVENT_MAP[\"delete\"](_this);\n }\n\n _this.trigger(event);\n }, 0);\n map.set(type, timeout);\n};\n\n/**\n * @file mixins/evented.js\n * @module evented\n */\n\nvar objName = function objName(obj) {\n if (typeof obj.name === 'function') {\n return obj.name();\n }\n\n if (typeof obj.name === 'string') {\n return obj.name;\n }\n\n if (obj.name_) {\n return obj.name_;\n }\n\n if (obj.constructor && obj.constructor.name) {\n return obj.constructor.name;\n }\n\n return typeof obj;\n};\n/**\n * Returns whether or not an object has had the evented mixin applied.\n *\n * @param {Object} object\n * An object to test.\n *\n * @return {boolean}\n * Whether or not the object appears to be evented.\n */\n\n\nvar isEvented = function isEvented(object) {\n return object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {\n return typeof object[k] === 'function';\n });\n};\n/**\n * Adds a callback to run after the evented mixin applied.\n *\n * @param {Object} object\n * An object to Add\n * @param {Function} callback\n * The callback to run.\n */\n\n\nvar addEventedCallback = function addEventedCallback(target, callback) {\n if (isEvented(target)) {\n callback();\n } else {\n if (!target.eventedCallbacks) {\n target.eventedCallbacks = [];\n }\n\n target.eventedCallbacks.push(callback);\n }\n};\n/**\n * Whether a value is a valid event type - non-empty string or array.\n *\n * @private\n * @param {string|Array} type\n * The type value to test.\n *\n * @return {boolean}\n * Whether or not the type is a valid event type.\n */\n\n\nvar isValidEventType = function isValidEventType(type) {\n return (// The regex here verifies that the `type` contains at least one non-\n // whitespace character.\n typeof type === 'string' && /\\S/.test(type) || Array.isArray(type) && !!type.length\n );\n};\n/**\n * Validates a value to determine if it is a valid event target. Throws if not.\n *\n * @private\n * @throws {Error}\n * If the target does not appear to be a valid event target.\n *\n * @param {Object} target\n * The object to test.\n *\n * @param {Object} obj\n * The evented object we are validating for\n *\n * @param {string} fnName\n * The name of the evented mixin function that called this.\n */\n\n\nvar validateTarget = function validateTarget(target, obj, fnName) {\n if (!target || !target.nodeName && !isEvented(target)) {\n throw new Error(\"Invalid target for \" + objName(obj) + \"#\" + fnName + \"; must be a DOM node or evented object.\");\n }\n};\n/**\n * Validates a value to determine if it is a valid event target. Throws if not.\n *\n * @private\n * @throws {Error}\n * If the type does not appear to be a valid event type.\n *\n * @param {string|Array} type\n * The type to test.\n *\n * @param {Object} obj\n* The evented object we are validating for\n *\n * @param {string} fnName\n * The name of the evented mixin function that called this.\n */\n\n\nvar validateEventType = function validateEventType(type, obj, fnName) {\n if (!isValidEventType(type)) {\n throw new Error(\"Invalid event type for \" + objName(obj) + \"#\" + fnName + \"; must be a non-empty string or array.\");\n }\n};\n/**\n * Validates a value to determine if it is a valid listener. Throws if not.\n *\n * @private\n * @throws {Error}\n * If the listener is not a function.\n *\n * @param {Function} listener\n * The listener to test.\n *\n * @param {Object} obj\n * The evented object we are validating for\n *\n * @param {string} fnName\n * The name of the evented mixin function that called this.\n */\n\n\nvar validateListener = function validateListener(listener, obj, fnName) {\n if (typeof listener !== 'function') {\n throw new Error(\"Invalid listener for \" + objName(obj) + \"#\" + fnName + \"; must be a function.\");\n }\n};\n/**\n * Takes an array of arguments given to `on()` or `one()`, validates them, and\n * normalizes them into an object.\n *\n * @private\n * @param {Object} self\n * The evented object on which `on()` or `one()` was called. This\n * object will be bound as the `this` value for the listener.\n *\n * @param {Array} args\n * An array of arguments passed to `on()` or `one()`.\n *\n * @param {string} fnName\n * The name of the evented mixin function that called this.\n *\n * @return {Object}\n * An object containing useful values for `on()` or `one()` calls.\n */\n\n\nvar normalizeListenArgs = function normalizeListenArgs(self, args, fnName) {\n // If the number of arguments is less than 3, the target is always the\n // evented object itself.\n var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;\n var target;\n var type;\n var listener;\n\n if (isTargetingSelf) {\n target = self.eventBusEl_; // Deal with cases where we got 3 arguments, but we are still listening to\n // the evented object itself.\n\n if (args.length >= 3) {\n args.shift();\n }\n\n type = args[0];\n listener = args[1];\n } else {\n target = args[0];\n type = args[1];\n listener = args[2];\n }\n\n validateTarget(target, self, fnName);\n validateEventType(type, self, fnName);\n validateListener(listener, self, fnName);\n listener = bind(self, listener);\n return {\n isTargetingSelf: isTargetingSelf,\n target: target,\n type: type,\n listener: listener\n };\n};\n/**\n * Adds the listener to the event type(s) on the target, normalizing for\n * the type of target.\n *\n * @private\n * @param {Element|Object} target\n * A DOM node or evented object.\n *\n * @param {string} method\n * The event binding method to use (\"on\" or \"one\").\n *\n * @param {string|Array} type\n * One or more event type(s).\n *\n * @param {Function} listener\n * A listener function.\n */\n\n\nvar listen = function listen(target, method, type, listener) {\n validateTarget(target, target, method);\n\n if (target.nodeName) {\n Events[method](target, type, listener);\n } else {\n target[method](type, listener);\n }\n};\n/**\n * Contains methods that provide event capabilities to an object which is passed\n * to {@link module:evented|evented}.\n *\n * @mixin EventedMixin\n */\n\n\nvar EventedMixin = {\n /**\n * Add a listener to an event (or events) on this object or another evented\n * object.\n *\n * @param {string|Array|Element|Object} targetOrType\n * If this is a string or array, it represents the event type(s)\n * that will trigger the listener.\n *\n * Another evented object can be passed here instead, which will\n * cause the listener to listen for events on _that_ object.\n *\n * In either case, the listener's `this` value will be bound to\n * this object.\n *\n * @param {string|Array|Function} typeOrListener\n * If the first argument was a string or array, this should be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function.\n */\n on: function on() {\n var _this = this;\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var _normalizeListenArgs = normalizeListenArgs(this, args, 'on'),\n isTargetingSelf = _normalizeListenArgs.isTargetingSelf,\n target = _normalizeListenArgs.target,\n type = _normalizeListenArgs.type,\n listener = _normalizeListenArgs.listener;\n\n listen(target, 'on', type, listener); // If this object is listening to another evented object.\n\n if (!isTargetingSelf) {\n // If this object is disposed, remove the listener.\n var removeListenerOnDispose = function removeListenerOnDispose() {\n return _this.off(target, type, listener);\n }; // Use the same function ID as the listener so we can remove it later it\n // using the ID of the original listener.\n\n\n removeListenerOnDispose.guid = listener.guid; // Add a listener to the target's dispose event as well. This ensures\n // that if the target is disposed BEFORE this object, we remove the\n // removal listener that was just added. Otherwise, we create a memory leak.\n\n var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {\n return _this.off('dispose', removeListenerOnDispose);\n }; // Use the same function ID as the listener so we can remove it later\n // it using the ID of the original listener.\n\n\n removeRemoverOnTargetDispose.guid = listener.guid;\n listen(this, 'on', 'dispose', removeListenerOnDispose);\n listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);\n }\n },\n\n /**\n * Add a listener to an event (or events) on this object or another evented\n * object. The listener will be called once per event and then removed.\n *\n * @param {string|Array|Element|Object} targetOrType\n * If this is a string or array, it represents the event type(s)\n * that will trigger the listener.\n *\n * Another evented object can be passed here instead, which will\n * cause the listener to listen for events on _that_ object.\n *\n * In either case, the listener's `this` value will be bound to\n * this object.\n *\n * @param {string|Array|Function} typeOrListener\n * If the first argument was a string or array, this should be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function.\n */\n one: function one() {\n var _this2 = this;\n\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n var _normalizeListenArgs2 = normalizeListenArgs(this, args, 'one'),\n isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,\n target = _normalizeListenArgs2.target,\n type = _normalizeListenArgs2.type,\n listener = _normalizeListenArgs2.listener; // Targeting this evented object.\n\n\n if (isTargetingSelf) {\n listen(target, 'one', type, listener); // Targeting another evented object.\n } else {\n // TODO: This wrapper is incorrect! It should only\n // remove the wrapper for the event type that called it.\n // Instead all listners are removed on the first trigger!\n // see https://github.com/videojs/video.js/issues/5962\n var wrapper = function wrapper() {\n _this2.off(target, type, wrapper);\n\n for (var _len3 = arguments.length, largs = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n largs[_key3] = arguments[_key3];\n }\n\n listener.apply(null, largs);\n }; // Use the same function ID as the listener so we can remove it later\n // it using the ID of the original listener.\n\n\n wrapper.guid = listener.guid;\n listen(target, 'one', type, wrapper);\n }\n },\n\n /**\n * Add a listener to an event (or events) on this object or another evented\n * object. The listener will only be called once for the first event that is triggered\n * then removed.\n *\n * @param {string|Array|Element|Object} targetOrType\n * If this is a string or array, it represents the event type(s)\n * that will trigger the listener.\n *\n * Another evented object can be passed here instead, which will\n * cause the listener to listen for events on _that_ object.\n *\n * In either case, the listener's `this` value will be bound to\n * this object.\n *\n * @param {string|Array|Function} typeOrListener\n * If the first argument was a string or array, this should be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function.\n */\n any: function any() {\n var _this3 = this;\n\n for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n args[_key4] = arguments[_key4];\n }\n\n var _normalizeListenArgs3 = normalizeListenArgs(this, args, 'any'),\n isTargetingSelf = _normalizeListenArgs3.isTargetingSelf,\n target = _normalizeListenArgs3.target,\n type = _normalizeListenArgs3.type,\n listener = _normalizeListenArgs3.listener; // Targeting this evented object.\n\n\n if (isTargetingSelf) {\n listen(target, 'any', type, listener); // Targeting another evented object.\n } else {\n var wrapper = function wrapper() {\n _this3.off(target, type, wrapper);\n\n for (var _len5 = arguments.length, largs = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {\n largs[_key5] = arguments[_key5];\n }\n\n listener.apply(null, largs);\n }; // Use the same function ID as the listener so we can remove it later\n // it using the ID of the original listener.\n\n\n wrapper.guid = listener.guid;\n listen(target, 'any', type, wrapper);\n }\n },\n\n /**\n * Removes listener(s) from event(s) on an evented object.\n *\n * @param {string|Array|Element|Object} [targetOrType]\n * If this is a string or array, it represents the event type(s).\n *\n * Another evented object can be passed here instead, in which case\n * ALL 3 arguments are _required_.\n *\n * @param {string|Array|Function} [typeOrListener]\n * If the first argument was a string or array, this may be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function; otherwise, _all_ listeners bound to the\n * event type(s) will be removed.\n */\n off: function off$1(targetOrType, typeOrListener, listener) {\n // Targeting this evented object.\n if (!targetOrType || isValidEventType(targetOrType)) {\n off(this.eventBusEl_, targetOrType, typeOrListener); // Targeting another evented object.\n } else {\n var target = targetOrType;\n var type = typeOrListener; // Fail fast and in a meaningful way!\n\n validateTarget(target, this, 'off');\n validateEventType(type, this, 'off');\n validateListener(listener, this, 'off'); // Ensure there's at least a guid, even if the function hasn't been used\n\n listener = bind(this, listener); // Remove the dispose listener on this evented object, which was given\n // the same guid as the event listener in on().\n\n this.off('dispose', listener);\n\n if (target.nodeName) {\n off(target, type, listener);\n off(target, 'dispose', listener);\n } else if (isEvented(target)) {\n target.off(type, listener);\n target.off('dispose', listener);\n }\n }\n },\n\n /**\n * Fire an event on this evented object, causing its listeners to be called.\n *\n * @param {string|Object} event\n * An event type or an object with a type property.\n *\n * @param {Object} [hash]\n * An additional object to pass along to listeners.\n *\n * @return {boolean}\n * Whether or not the default behavior was prevented.\n */\n trigger: function trigger$1(event, hash) {\n validateTarget(this.eventBusEl_, this, 'trigger');\n var type = event && typeof event !== 'string' ? event.type : event;\n\n if (!isValidEventType(type)) {\n var error = \"Invalid event type for \" + objName(this) + \"#trigger; \" + 'must be a non-empty string or object with a type key that has a non-empty value.';\n\n if (event) {\n (this.log || log$1).error(error);\n } else {\n throw new Error(error);\n }\n }\n\n return trigger(this.eventBusEl_, event, hash);\n }\n};\n/**\n * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.\n *\n * @param {Object} target\n * The object to which to add event methods.\n *\n * @param {Object} [options={}]\n * Options for customizing the mixin behavior.\n *\n * @param {string} [options.eventBusKey]\n * By default, adds a `eventBusEl_` DOM element to the target object,\n * which is used as an event bus. If the target object already has a\n * DOM element that should be used, pass its key here.\n *\n * @return {Object}\n * The target object.\n */\n\nfunction evented(target, options) {\n if (options === void 0) {\n options = {};\n }\n\n var _options = options,\n eventBusKey = _options.eventBusKey; // Set or create the eventBusEl_.\n\n if (eventBusKey) {\n if (!target[eventBusKey].nodeName) {\n throw new Error(\"The eventBusKey \\\"\" + eventBusKey + \"\\\" does not refer to an element.\");\n }\n\n target.eventBusEl_ = target[eventBusKey];\n } else {\n target.eventBusEl_ = createEl('span', {\n className: 'vjs-event-bus'\n });\n }\n\n assign(target, EventedMixin);\n\n if (target.eventedCallbacks) {\n target.eventedCallbacks.forEach(function (callback) {\n callback();\n });\n } // When any evented object is disposed, it removes all its listeners.\n\n\n target.on('dispose', function () {\n target.off();\n [target, target.el_, target.eventBusEl_].forEach(function (val) {\n if (val && DomData.has(val)) {\n DomData[\"delete\"](val);\n }\n });\n window$1.setTimeout(function () {\n target.eventBusEl_ = null;\n }, 0);\n });\n return target;\n}\n\n/**\n * @file mixins/stateful.js\n * @module stateful\n */\n/**\n * Contains methods that provide statefulness to an object which is passed\n * to {@link module:stateful}.\n *\n * @mixin StatefulMixin\n */\n\nvar StatefulMixin = {\n /**\n * A hash containing arbitrary keys and values representing the state of\n * the object.\n *\n * @type {Object}\n */\n state: {},\n\n /**\n * Set the state of an object by mutating its\n * {@link module:stateful~StatefulMixin.state|state} object in place.\n *\n * @fires module:stateful~StatefulMixin#statechanged\n * @param {Object|Function} stateUpdates\n * A new set of properties to shallow-merge into the plugin state.\n * Can be a plain object or a function returning a plain object.\n *\n * @return {Object|undefined}\n * An object containing changes that occurred. If no changes\n * occurred, returns `undefined`.\n */\n setState: function setState(stateUpdates) {\n var _this = this;\n\n // Support providing the `stateUpdates` state as a function.\n if (typeof stateUpdates === 'function') {\n stateUpdates = stateUpdates();\n }\n\n var changes;\n each(stateUpdates, function (value, key) {\n // Record the change if the value is different from what's in the\n // current state.\n if (_this.state[key] !== value) {\n changes = changes || {};\n changes[key] = {\n from: _this.state[key],\n to: value\n };\n }\n\n _this.state[key] = value;\n }); // Only trigger \"statechange\" if there were changes AND we have a trigger\n // function. This allows us to not require that the target object be an\n // evented object.\n\n if (changes && isEvented(this)) {\n /**\n * An event triggered on an object that is both\n * {@link module:stateful|stateful} and {@link module:evented|evented}\n * indicating that its state has changed.\n *\n * @event module:stateful~StatefulMixin#statechanged\n * @type {Object}\n * @property {Object} changes\n * A hash containing the properties that were changed and\n * the values they were changed `from` and `to`.\n */\n this.trigger({\n changes: changes,\n type: 'statechanged'\n });\n }\n\n return changes;\n }\n};\n/**\n * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target\n * object.\n *\n * If the target object is {@link module:evented|evented} and has a\n * `handleStateChanged` method, that method will be automatically bound to the\n * `statechanged` event on itself.\n *\n * @param {Object} target\n * The object to be made stateful.\n *\n * @param {Object} [defaultState]\n * A default set of properties to populate the newly-stateful object's\n * `state` property.\n *\n * @return {Object}\n * Returns the `target`.\n */\n\nfunction stateful(target, defaultState) {\n assign(target, StatefulMixin); // This happens after the mixing-in because we need to replace the `state`\n // added in that step.\n\n target.state = assign({}, target.state, defaultState); // Auto-bind the `handleStateChanged` method of the target object if it exists.\n\n if (typeof target.handleStateChanged === 'function' && isEvented(target)) {\n target.on('statechanged', target.handleStateChanged);\n }\n\n return target;\n}\n\n/**\n * @file string-cases.js\n * @module to-lower-case\n */\n\n/**\n * Lowercase the first letter of a string.\n *\n * @param {string} string\n * String to be lowercased\n *\n * @return {string}\n * The string with a lowercased first letter\n */\nvar toLowerCase = function toLowerCase(string) {\n if (typeof string !== 'string') {\n return string;\n }\n\n return string.replace(/./, function (w) {\n return w.toLowerCase();\n });\n};\n/**\n * Uppercase the first letter of a string.\n *\n * @param {string} string\n * String to be uppercased\n *\n * @return {string}\n * The string with an uppercased first letter\n */\n\nvar toTitleCase$1 = function toTitleCase(string) {\n if (typeof string !== 'string') {\n return string;\n }\n\n return string.replace(/./, function (w) {\n return w.toUpperCase();\n });\n};\n/**\n * Compares the TitleCase versions of the two strings for equality.\n *\n * @param {string} str1\n * The first string to compare\n *\n * @param {string} str2\n * The second string to compare\n *\n * @return {boolean}\n * Whether the TitleCase versions of the strings are equal\n */\n\nvar titleCaseEquals = function titleCaseEquals(str1, str2) {\n return toTitleCase$1(str1) === toTitleCase$1(str2);\n};\n\n/**\n * @file merge-options.js\n * @module merge-options\n */\n/**\n * Merge two objects recursively.\n *\n * Performs a deep merge like\n * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges\n * plain objects (not arrays, elements, or anything else).\n *\n * Non-plain object values will be copied directly from the right-most\n * argument.\n *\n * @static\n * @param {Object[]} sources\n * One or more objects to merge into a new object.\n *\n * @return {Object}\n * A new object that is the merged result of all sources.\n */\n\nfunction mergeOptions$3() {\n var result = {};\n\n for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) {\n sources[_key] = arguments[_key];\n }\n\n sources.forEach(function (source) {\n if (!source) {\n return;\n }\n\n each(source, function (value, key) {\n if (!isPlain(value)) {\n result[key] = value;\n return;\n }\n\n if (!isPlain(result[key])) {\n result[key] = {};\n }\n\n result[key] = mergeOptions$3(result[key], value);\n });\n });\n return result;\n}\n\nvar MapSham = /*#__PURE__*/function () {\n function MapSham() {\n this.map_ = {};\n }\n\n var _proto = MapSham.prototype;\n\n _proto.has = function has(key) {\n return key in this.map_;\n };\n\n _proto[\"delete\"] = function _delete(key) {\n var has = this.has(key);\n delete this.map_[key];\n return has;\n };\n\n _proto.set = function set(key, value) {\n this.map_[key] = value;\n return this;\n };\n\n _proto.forEach = function forEach(callback, thisArg) {\n for (var key in this.map_) {\n callback.call(thisArg, this.map_[key], key, this);\n }\n };\n\n return MapSham;\n}();\n\nvar Map$1 = window$1.Map ? window$1.Map : MapSham;\n\nvar SetSham = /*#__PURE__*/function () {\n function SetSham() {\n this.set_ = {};\n }\n\n var _proto = SetSham.prototype;\n\n _proto.has = function has(key) {\n return key in this.set_;\n };\n\n _proto[\"delete\"] = function _delete(key) {\n var has = this.has(key);\n delete this.set_[key];\n return has;\n };\n\n _proto.add = function add(key) {\n this.set_[key] = 1;\n return this;\n };\n\n _proto.forEach = function forEach(callback, thisArg) {\n for (var key in this.set_) {\n callback.call(thisArg, key, key, this);\n }\n };\n\n return SetSham;\n}();\n\nvar Set$1 = window$1.Set ? window$1.Set : SetSham;\n\n/**\n * Player Component - Base class for all UI objects\n *\n * @file component.js\n */\n/**\n * Base class for all UI Components.\n * Components are UI objects which represent both a javascript object and an element\n * in the DOM. They can be children of other components, and can have\n * children themselves.\n *\n * Components can also use methods from {@link EventTarget}\n */\n\nvar Component$1 = /*#__PURE__*/function () {\n /**\n * A callback that is called when a component is ready. Does not have any\n * paramters and any callback value will be ignored.\n *\n * @callback Component~ReadyCallback\n * @this Component\n */\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of component options.\n *\n * @param {Object[]} [options.children]\n * An array of children objects to intialize this component with. Children objects have\n * a name property that will be used if more than one component of the same type needs to be\n * added.\n *\n * @param {string} [options.className]\n * A class or space separated list of classes to add the component\n *\n * @param {Component~ReadyCallback} [ready]\n * Function that gets called when the `Component` is ready.\n */\n function Component(player, options, ready) {\n var _this = this;\n\n // The component might be the player itself and we can't pass `this` to super\n if (!player && this.play) {\n this.player_ = player = this; // eslint-disable-line\n } else {\n this.player_ = player;\n }\n\n this.isDisposed_ = false; // Hold the reference to the parent component via `addChild` method\n\n this.parentComponent_ = null; // Make a copy of prototype.options_ to protect against overriding defaults\n\n this.options_ = mergeOptions$3({}, this.options_); // Updated options with supplied options\n\n options = this.options_ = mergeOptions$3(this.options_, options); // Get ID from options or options element if one is supplied\n\n this.id_ = options.id || options.el && options.el.id; // If there was no ID from the options, generate one\n\n if (!this.id_) {\n // Don't require the player ID function in the case of mock players\n var id = player && player.id && player.id() || 'no_player';\n this.id_ = id + \"_component_\" + newGUID();\n }\n\n this.name_ = options.name || null; // Create element if one wasn't provided in options\n\n if (options.el) {\n this.el_ = options.el;\n } else if (options.createEl !== false) {\n this.el_ = this.createEl();\n }\n\n if (options.className && this.el_) {\n options.className.split(' ').forEach(function (c) {\n return _this.addClass(c);\n });\n } // if evented is anything except false, we want to mixin in evented\n\n\n if (options.evented !== false) {\n // Make this an evented object and use `el_`, if available, as its event bus\n evented(this, {\n eventBusKey: this.el_ ? 'el_' : null\n });\n this.handleLanguagechange = this.handleLanguagechange.bind(this);\n this.on(this.player_, 'languagechange', this.handleLanguagechange);\n }\n\n stateful(this, this.constructor.defaultState);\n this.children_ = [];\n this.childIndex_ = {};\n this.childNameIndex_ = {};\n this.setTimeoutIds_ = new Set$1();\n this.setIntervalIds_ = new Set$1();\n this.rafIds_ = new Set$1();\n this.namedRafs_ = new Map$1();\n this.clearingTimersOnDispose_ = false; // Add any child components in options\n\n if (options.initChildren !== false) {\n this.initChildren();\n } // Don't want to trigger ready here or it will go before init is actually\n // finished for all children that run this constructor\n\n\n this.ready(ready);\n\n if (options.reportTouchActivity !== false) {\n this.enableTouchActivity();\n }\n }\n /**\n * Dispose of the `Component` and all child components.\n *\n * @fires Component#dispose\n *\n * @param {Object} options\n * @param {Element} options.originalEl element with which to replace player element\n */\n\n\n var _proto = Component.prototype;\n\n _proto.dispose = function dispose(options) {\n if (options === void 0) {\n options = {};\n }\n\n // Bail out if the component has already been disposed.\n if (this.isDisposed_) {\n return;\n }\n\n if (this.readyQueue_) {\n this.readyQueue_.length = 0;\n }\n /**\n * Triggered when a `Component` is disposed.\n *\n * @event Component#dispose\n * @type {EventTarget~Event}\n *\n * @property {boolean} [bubbles=false]\n * set to false so that the dispose event does not\n * bubble up\n */\n\n\n this.trigger({\n type: 'dispose',\n bubbles: false\n });\n this.isDisposed_ = true; // Dispose all children.\n\n if (this.children_) {\n for (var i = this.children_.length - 1; i >= 0; i--) {\n if (this.children_[i].dispose) {\n this.children_[i].dispose();\n }\n }\n } // Delete child references\n\n\n this.children_ = null;\n this.childIndex_ = null;\n this.childNameIndex_ = null;\n this.parentComponent_ = null;\n\n if (this.el_) {\n // Remove element from DOM\n if (this.el_.parentNode) {\n if (options.restoreEl) {\n this.el_.parentNode.replaceChild(options.restoreEl, this.el_);\n } else {\n this.el_.parentNode.removeChild(this.el_);\n }\n }\n\n this.el_ = null;\n } // remove reference to the player after disposing of the element\n\n\n this.player_ = null;\n }\n /**\n * Determine whether or not this component has been disposed.\n *\n * @return {boolean}\n * If the component has been disposed, will be `true`. Otherwise, `false`.\n */\n ;\n\n _proto.isDisposed = function isDisposed() {\n return Boolean(this.isDisposed_);\n }\n /**\n * Return the {@link Player} that the `Component` has attached to.\n *\n * @return {Player}\n * The player that this `Component` has attached to.\n */\n ;\n\n _proto.player = function player() {\n return this.player_;\n }\n /**\n * Deep merge of options objects with new options.\n * > Note: When both `obj` and `options` contain properties whose values are objects.\n * The two properties get merged using {@link module:mergeOptions}\n *\n * @param {Object} obj\n * The object that contains new options.\n *\n * @return {Object}\n * A new object of `this.options_` and `obj` merged together.\n */\n ;\n\n _proto.options = function options(obj) {\n if (!obj) {\n return this.options_;\n }\n\n this.options_ = mergeOptions$3(this.options_, obj);\n return this.options_;\n }\n /**\n * Get the `Component`s DOM element\n *\n * @return {Element}\n * The DOM element for this `Component`.\n */\n ;\n\n _proto.el = function el() {\n return this.el_;\n }\n /**\n * Create the `Component`s DOM element.\n *\n * @param {string} [tagName]\n * Element's DOM node type. e.g. 'div'\n *\n * @param {Object} [properties]\n * An object of properties that should be set.\n *\n * @param {Object} [attributes]\n * An object of attributes that should be set.\n *\n * @return {Element}\n * The element that gets created.\n */\n ;\n\n _proto.createEl = function createEl$1(tagName, properties, attributes) {\n return createEl(tagName, properties, attributes);\n }\n /**\n * Localize a string given the string in english.\n *\n * If tokens are provided, it'll try and run a simple token replacement on the provided string.\n * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.\n *\n * If a `defaultValue` is provided, it'll use that over `string`,\n * if a value isn't found in provided language files.\n * This is useful if you want to have a descriptive key for token replacement\n * but have a succinct localized string and not require `en.json` to be included.\n *\n * Currently, it is used for the progress bar timing.\n * ```js\n * {\n * \"progress bar timing: currentTime={1} duration={2}\": \"{1} of {2}\"\n * }\n * ```\n * It is then used like so:\n * ```js\n * this.localize('progress bar timing: currentTime={1} duration{2}',\n * [this.player_.currentTime(), this.player_.duration()],\n * '{1} of {2}');\n * ```\n *\n * Which outputs something like: `01:23 of 24:56`.\n *\n *\n * @param {string} string\n * The string to localize and the key to lookup in the language files.\n * @param {string[]} [tokens]\n * If the current item has token replacements, provide the tokens here.\n * @param {string} [defaultValue]\n * Defaults to `string`. Can be a default value to use for token replacement\n * if the lookup key is needed to be separate.\n *\n * @return {string}\n * The localized string or if no localization exists the english string.\n */\n ;\n\n _proto.localize = function localize(string, tokens, defaultValue) {\n if (defaultValue === void 0) {\n defaultValue = string;\n }\n\n var code = this.player_.language && this.player_.language();\n var languages = this.player_.languages && this.player_.languages();\n var language = languages && languages[code];\n var primaryCode = code && code.split('-')[0];\n var primaryLang = languages && languages[primaryCode];\n var localizedString = defaultValue;\n\n if (language && language[string]) {\n localizedString = language[string];\n } else if (primaryLang && primaryLang[string]) {\n localizedString = primaryLang[string];\n }\n\n if (tokens) {\n localizedString = localizedString.replace(/\\{(\\d+)\\}/g, function (match, index) {\n var value = tokens[index - 1];\n var ret = value;\n\n if (typeof value === 'undefined') {\n ret = match;\n }\n\n return ret;\n });\n }\n\n return localizedString;\n }\n /**\n * Handles language change for the player in components. Should be overriden by sub-components.\n *\n * @abstract\n */\n ;\n\n _proto.handleLanguagechange = function handleLanguagechange() {}\n /**\n * Return the `Component`s DOM element. This is where children get inserted.\n * This will usually be the the same as the element returned in {@link Component#el}.\n *\n * @return {Element}\n * The content element for this `Component`.\n */\n ;\n\n _proto.contentEl = function contentEl() {\n return this.contentEl_ || this.el_;\n }\n /**\n * Get this `Component`s ID\n *\n * @return {string}\n * The id of this `Component`\n */\n ;\n\n _proto.id = function id() {\n return this.id_;\n }\n /**\n * Get the `Component`s name. The name gets used to reference the `Component`\n * and is set during registration.\n *\n * @return {string}\n * The name of this `Component`.\n */\n ;\n\n _proto.name = function name() {\n return this.name_;\n }\n /**\n * Get an array of all child components\n *\n * @return {Array}\n * The children\n */\n ;\n\n _proto.children = function children() {\n return this.children_;\n }\n /**\n * Returns the child `Component` with the given `id`.\n *\n * @param {string} id\n * The id of the child `Component` to get.\n *\n * @return {Component|undefined}\n * The child `Component` with the given `id` or undefined.\n */\n ;\n\n _proto.getChildById = function getChildById(id) {\n return this.childIndex_[id];\n }\n /**\n * Returns the child `Component` with the given `name`.\n *\n * @param {string} name\n * The name of the child `Component` to get.\n *\n * @return {Component|undefined}\n * The child `Component` with the given `name` or undefined.\n */\n ;\n\n _proto.getChild = function getChild(name) {\n if (!name) {\n return;\n }\n\n return this.childNameIndex_[name];\n }\n /**\n * Returns the descendant `Component` following the givent\n * descendant `names`. For instance ['foo', 'bar', 'baz'] would\n * try to get 'foo' on the current component, 'bar' on the 'foo'\n * component and 'baz' on the 'bar' component and return undefined\n * if any of those don't exist.\n *\n * @param {...string[]|...string} names\n * The name of the child `Component` to get.\n *\n * @return {Component|undefined}\n * The descendant `Component` following the given descendant\n * `names` or undefined.\n */\n ;\n\n _proto.getDescendant = function getDescendant() {\n for (var _len = arguments.length, names = new Array(_len), _key = 0; _key < _len; _key++) {\n names[_key] = arguments[_key];\n }\n\n // flatten array argument into the main array\n names = names.reduce(function (acc, n) {\n return acc.concat(n);\n }, []);\n var currentChild = this;\n\n for (var i = 0; i < names.length; i++) {\n currentChild = currentChild.getChild(names[i]);\n\n if (!currentChild || !currentChild.getChild) {\n return;\n }\n }\n\n return currentChild;\n }\n /**\n * Add a child `Component` inside the current `Component`.\n *\n *\n * @param {string|Component} child\n * The name or instance of a child to add.\n *\n * @param {Object} [options={}]\n * The key/value store of options that will get passed to children of\n * the child.\n *\n * @param {number} [index=this.children_.length]\n * The index to attempt to add a child into.\n *\n * @return {Component}\n * The `Component` that gets added as a child. When using a string the\n * `Component` will get created by this process.\n */\n ;\n\n _proto.addChild = function addChild(child, options, index) {\n if (options === void 0) {\n options = {};\n }\n\n if (index === void 0) {\n index = this.children_.length;\n }\n\n var component;\n var componentName; // If child is a string, create component with options\n\n if (typeof child === 'string') {\n componentName = toTitleCase$1(child);\n var componentClassName = options.componentClass || componentName; // Set name through options\n\n options.name = componentName; // Create a new object & element for this controls set\n // If there's no .player_, this is a player\n\n var ComponentClass = Component.getComponent(componentClassName);\n\n if (!ComponentClass) {\n throw new Error(\"Component \" + componentClassName + \" does not exist\");\n } // data stored directly on the videojs object may be\n // misidentified as a component to retain\n // backwards-compatibility with 4.x. check to make sure the\n // component class can be instantiated.\n\n\n if (typeof ComponentClass !== 'function') {\n return null;\n }\n\n component = new ComponentClass(this.player_ || this, options); // child is a component instance\n } else {\n component = child;\n }\n\n if (component.parentComponent_) {\n component.parentComponent_.removeChild(component);\n }\n\n this.children_.splice(index, 0, component);\n component.parentComponent_ = this;\n\n if (typeof component.id === 'function') {\n this.childIndex_[component.id()] = component;\n } // If a name wasn't used to create the component, check if we can use the\n // name function of the component\n\n\n componentName = componentName || component.name && toTitleCase$1(component.name());\n\n if (componentName) {\n this.childNameIndex_[componentName] = component;\n this.childNameIndex_[toLowerCase(componentName)] = component;\n } // Add the UI object's element to the container div (box)\n // Having an element is not required\n\n\n if (typeof component.el === 'function' && component.el()) {\n // If inserting before a component, insert before that component's element\n var refNode = null;\n\n if (this.children_[index + 1]) {\n // Most children are components, but the video tech is an HTML element\n if (this.children_[index + 1].el_) {\n refNode = this.children_[index + 1].el_;\n } else if (isEl(this.children_[index + 1])) {\n refNode = this.children_[index + 1];\n }\n }\n\n this.contentEl().insertBefore(component.el(), refNode);\n } // Return so it can stored on parent object if desired.\n\n\n return component;\n }\n /**\n * Remove a child `Component` from this `Component`s list of children. Also removes\n * the child `Component`s element from this `Component`s element.\n *\n * @param {Component} component\n * The child `Component` to remove.\n */\n ;\n\n _proto.removeChild = function removeChild(component) {\n if (typeof component === 'string') {\n component = this.getChild(component);\n }\n\n if (!component || !this.children_) {\n return;\n }\n\n var childFound = false;\n\n for (var i = this.children_.length - 1; i >= 0; i--) {\n if (this.children_[i] === component) {\n childFound = true;\n this.children_.splice(i, 1);\n break;\n }\n }\n\n if (!childFound) {\n return;\n }\n\n component.parentComponent_ = null;\n this.childIndex_[component.id()] = null;\n this.childNameIndex_[toTitleCase$1(component.name())] = null;\n this.childNameIndex_[toLowerCase(component.name())] = null;\n var compEl = component.el();\n\n if (compEl && compEl.parentNode === this.contentEl()) {\n this.contentEl().removeChild(component.el());\n }\n }\n /**\n * Add and initialize default child `Component`s based upon options.\n */\n ;\n\n _proto.initChildren = function initChildren() {\n var _this2 = this;\n\n var children = this.options_.children;\n\n if (children) {\n // `this` is `parent`\n var parentOptions = this.options_;\n\n var handleAdd = function handleAdd(child) {\n var name = child.name;\n var opts = child.opts; // Allow options for children to be set at the parent options\n // e.g. videojs(id, { controlBar: false });\n // instead of videojs(id, { children: { controlBar: false });\n\n if (parentOptions[name] !== undefined) {\n opts = parentOptions[name];\n } // Allow for disabling default components\n // e.g. options['children']['posterImage'] = false\n\n\n if (opts === false) {\n return;\n } // Allow options to be passed as a simple boolean if no configuration\n // is necessary.\n\n\n if (opts === true) {\n opts = {};\n } // We also want to pass the original player options\n // to each component as well so they don't need to\n // reach back into the player for options later.\n\n\n opts.playerOptions = _this2.options_.playerOptions; // Create and add the child component.\n // Add a direct reference to the child by name on the parent instance.\n // If two of the same component are used, different names should be supplied\n // for each\n\n var newChild = _this2.addChild(name, opts);\n\n if (newChild) {\n _this2[name] = newChild;\n }\n }; // Allow for an array of children details to passed in the options\n\n\n var workingChildren;\n var Tech = Component.getComponent('Tech');\n\n if (Array.isArray(children)) {\n workingChildren = children;\n } else {\n workingChildren = Object.keys(children);\n }\n\n workingChildren // children that are in this.options_ but also in workingChildren would\n // give us extra children we do not want. So, we want to filter them out.\n .concat(Object.keys(this.options_).filter(function (child) {\n return !workingChildren.some(function (wchild) {\n if (typeof wchild === 'string') {\n return child === wchild;\n }\n\n return child === wchild.name;\n });\n })).map(function (child) {\n var name;\n var opts;\n\n if (typeof child === 'string') {\n name = child;\n opts = children[name] || _this2.options_[name] || {};\n } else {\n name = child.name;\n opts = child;\n }\n\n return {\n name: name,\n opts: opts\n };\n }).filter(function (child) {\n // we have to make sure that child.name isn't in the techOrder since\n // techs are registerd as Components but can't aren't compatible\n // See https://github.com/videojs/video.js/issues/2772\n var c = Component.getComponent(child.opts.componentClass || toTitleCase$1(child.name));\n return c && !Tech.isTech(c);\n }).forEach(handleAdd);\n }\n }\n /**\n * Builds the default DOM class name. Should be overriden by sub-components.\n *\n * @return {string}\n * The DOM class name for this object.\n *\n * @abstract\n */\n ;\n\n _proto.buildCSSClass = function buildCSSClass() {\n // Child classes can include a function that does:\n // return 'CLASS NAME' + this._super();\n return '';\n }\n /**\n * Bind a listener to the component's ready state.\n * Different from event listeners in that if the ready event has already happened\n * it will trigger the function immediately.\n *\n * @return {Component}\n * Returns itself; method can be chained.\n */\n ;\n\n _proto.ready = function ready(fn, sync) {\n if (sync === void 0) {\n sync = false;\n }\n\n if (!fn) {\n return;\n }\n\n if (!this.isReady_) {\n this.readyQueue_ = this.readyQueue_ || [];\n this.readyQueue_.push(fn);\n return;\n }\n\n if (sync) {\n fn.call(this);\n } else {\n // Call the function asynchronously by default for consistency\n this.setTimeout(fn, 1);\n }\n }\n /**\n * Trigger all the ready listeners for this `Component`.\n *\n * @fires Component#ready\n */\n ;\n\n _proto.triggerReady = function triggerReady() {\n this.isReady_ = true; // Ensure ready is triggered asynchronously\n\n this.setTimeout(function () {\n var readyQueue = this.readyQueue_; // Reset Ready Queue\n\n this.readyQueue_ = [];\n\n if (readyQueue && readyQueue.length > 0) {\n readyQueue.forEach(function (fn) {\n fn.call(this);\n }, this);\n } // Allow for using event listeners also\n\n /**\n * Triggered when a `Component` is ready.\n *\n * @event Component#ready\n * @type {EventTarget~Event}\n */\n\n\n this.trigger('ready');\n }, 1);\n }\n /**\n * Find a single DOM element matching a `selector`. This can be within the `Component`s\n * `contentEl()` or another custom context.\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelector`.\n *\n * @param {Element|string} [context=this.contentEl()]\n * A DOM element within which to query. Can also be a selector string in\n * which case the first matching element will get used as context. If\n * missing `this.contentEl()` gets used. If `this.contentEl()` returns\n * nothing it falls back to `document`.\n *\n * @return {Element|null}\n * the dom element that was found, or null\n *\n * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n */\n ;\n\n _proto.$ = function $$1(selector, context) {\n return $(selector, context || this.contentEl());\n }\n /**\n * Finds all DOM element matching a `selector`. This can be within the `Component`s\n * `contentEl()` or another custom context.\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelectorAll`.\n *\n * @param {Element|string} [context=this.contentEl()]\n * A DOM element within which to query. Can also be a selector string in\n * which case the first matching element will get used as context. If\n * missing `this.contentEl()` gets used. If `this.contentEl()` returns\n * nothing it falls back to `document`.\n *\n * @return {NodeList}\n * a list of dom elements that were found\n *\n * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n */\n ;\n\n _proto.$$ = function $$$1(selector, context) {\n return $$(selector, context || this.contentEl());\n }\n /**\n * Check if a component's element has a CSS class name.\n *\n * @param {string} classToCheck\n * CSS class name to check.\n *\n * @return {boolean}\n * - True if the `Component` has the class.\n * - False if the `Component` does not have the class`\n */\n ;\n\n _proto.hasClass = function hasClass$1(classToCheck) {\n return hasClass(this.el_, classToCheck);\n }\n /**\n * Add a CSS class name to the `Component`s element.\n *\n * @param {string} classToAdd\n * CSS class name to add\n */\n ;\n\n _proto.addClass = function addClass$1(classToAdd) {\n addClass(this.el_, classToAdd);\n }\n /**\n * Remove a CSS class name from the `Component`s element.\n *\n * @param {string} classToRemove\n * CSS class name to remove\n */\n ;\n\n _proto.removeClass = function removeClass$1(classToRemove) {\n removeClass(this.el_, classToRemove);\n }\n /**\n * Add or remove a CSS class name from the component's element.\n * - `classToToggle` gets added when {@link Component#hasClass} would return false.\n * - `classToToggle` gets removed when {@link Component#hasClass} would return true.\n *\n * @param {string} classToToggle\n * The class to add or remove based on (@link Component#hasClass}\n *\n * @param {boolean|Dom~predicate} [predicate]\n * An {@link Dom~predicate} function or a boolean\n */\n ;\n\n _proto.toggleClass = function toggleClass$1(classToToggle, predicate) {\n toggleClass(this.el_, classToToggle, predicate);\n }\n /**\n * Show the `Component`s element if it is hidden by removing the\n * 'vjs-hidden' class name from it.\n */\n ;\n\n _proto.show = function show() {\n this.removeClass('vjs-hidden');\n }\n /**\n * Hide the `Component`s element if it is currently showing by adding the\n * 'vjs-hidden` class name to it.\n */\n ;\n\n _proto.hide = function hide() {\n this.addClass('vjs-hidden');\n }\n /**\n * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'\n * class name to it. Used during fadeIn/fadeOut.\n *\n * @private\n */\n ;\n\n _proto.lockShowing = function lockShowing() {\n this.addClass('vjs-lock-showing');\n }\n /**\n * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'\n * class name from it. Used during fadeIn/fadeOut.\n *\n * @private\n */\n ;\n\n _proto.unlockShowing = function unlockShowing() {\n this.removeClass('vjs-lock-showing');\n }\n /**\n * Get the value of an attribute on the `Component`s element.\n *\n * @param {string} attribute\n * Name of the attribute to get the value from.\n *\n * @return {string|null}\n * - The value of the attribute that was asked for.\n * - Can be an empty string on some browsers if the attribute does not exist\n * or has no value\n * - Most browsers will return null if the attibute does not exist or has\n * no value.\n *\n * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}\n */\n ;\n\n _proto.getAttribute = function getAttribute$1(attribute) {\n return getAttribute(this.el_, attribute);\n }\n /**\n * Set the value of an attribute on the `Component`'s element\n *\n * @param {string} attribute\n * Name of the attribute to set.\n *\n * @param {string} value\n * Value to set the attribute to.\n *\n * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}\n */\n ;\n\n _proto.setAttribute = function setAttribute$1(attribute, value) {\n setAttribute(this.el_, attribute, value);\n }\n /**\n * Remove an attribute from the `Component`s element.\n *\n * @param {string} attribute\n * Name of the attribute to remove.\n *\n * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}\n */\n ;\n\n _proto.removeAttribute = function removeAttribute$1(attribute) {\n removeAttribute(this.el_, attribute);\n }\n /**\n * Get or set the width of the component based upon the CSS styles.\n * See {@link Component#dimension} for more detailed information.\n *\n * @param {number|string} [num]\n * The width that you want to set postfixed with '%', 'px' or nothing.\n *\n * @param {boolean} [skipListeners]\n * Skip the componentresize event trigger\n *\n * @return {number|string}\n * The width when getting, zero if there is no width. Can be a string\n * postpixed with '%' or 'px'.\n */\n ;\n\n _proto.width = function width(num, skipListeners) {\n return this.dimension('width', num, skipListeners);\n }\n /**\n * Get or set the height of the component based upon the CSS styles.\n * See {@link Component#dimension} for more detailed information.\n *\n * @param {number|string} [num]\n * The height that you want to set postfixed with '%', 'px' or nothing.\n *\n * @param {boolean} [skipListeners]\n * Skip the componentresize event trigger\n *\n * @return {number|string}\n * The width when getting, zero if there is no width. Can be a string\n * postpixed with '%' or 'px'.\n */\n ;\n\n _proto.height = function height(num, skipListeners) {\n return this.dimension('height', num, skipListeners);\n }\n /**\n * Set both the width and height of the `Component` element at the same time.\n *\n * @param {number|string} width\n * Width to set the `Component`s element to.\n *\n * @param {number|string} height\n * Height to set the `Component`s element to.\n */\n ;\n\n _proto.dimensions = function dimensions(width, height) {\n // Skip componentresize listeners on width for optimization\n this.width(width, true);\n this.height(height);\n }\n /**\n * Get or set width or height of the `Component` element. This is the shared code\n * for the {@link Component#width} and {@link Component#height}.\n *\n * Things to know:\n * - If the width or height in an number this will return the number postfixed with 'px'.\n * - If the width/height is a percent this will return the percent postfixed with '%'\n * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function\n * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.\n * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}\n * for more information\n * - If you want the computed style of the component, use {@link Component#currentWidth}\n * and {@link {Component#currentHeight}\n *\n * @fires Component#componentresize\n *\n * @param {string} widthOrHeight\n 8 'width' or 'height'\n *\n * @param {number|string} [num]\n 8 New dimension\n *\n * @param {boolean} [skipListeners]\n * Skip componentresize event trigger\n *\n * @return {number}\n * The dimension when getting or 0 if unset\n */\n ;\n\n _proto.dimension = function dimension(widthOrHeight, num, skipListeners) {\n if (num !== undefined) {\n // Set to zero if null or literally NaN (NaN !== NaN)\n if (num === null || num !== num) {\n num = 0;\n } // Check if using css width/height (% or px) and adjust\n\n\n if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {\n this.el_.style[widthOrHeight] = num;\n } else if (num === 'auto') {\n this.el_.style[widthOrHeight] = '';\n } else {\n this.el_.style[widthOrHeight] = num + 'px';\n } // skipListeners allows us to avoid triggering the resize event when setting both width and height\n\n\n if (!skipListeners) {\n /**\n * Triggered when a component is resized.\n *\n * @event Component#componentresize\n * @type {EventTarget~Event}\n */\n this.trigger('componentresize');\n }\n\n return;\n } // Not setting a value, so getting it\n // Make sure element exists\n\n\n if (!this.el_) {\n return 0;\n } // Get dimension value from style\n\n\n var val = this.el_.style[widthOrHeight];\n var pxIndex = val.indexOf('px');\n\n if (pxIndex !== -1) {\n // Return the pixel value with no 'px'\n return parseInt(val.slice(0, pxIndex), 10);\n } // No px so using % or no style was set, so falling back to offsetWidth/height\n // If component has display:none, offset will return 0\n // TODO: handle display:none and no dimension style using px\n\n\n return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);\n }\n /**\n * Get the computed width or the height of the component's element.\n *\n * Uses `window.getComputedStyle`.\n *\n * @param {string} widthOrHeight\n * A string containing 'width' or 'height'. Whichever one you want to get.\n *\n * @return {number}\n * The dimension that gets asked for or 0 if nothing was set\n * for that dimension.\n */\n ;\n\n _proto.currentDimension = function currentDimension(widthOrHeight) {\n var computedWidthOrHeight = 0;\n\n if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {\n throw new Error('currentDimension only accepts width or height value');\n }\n\n computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); // remove 'px' from variable and parse as integer\n\n computedWidthOrHeight = parseFloat(computedWidthOrHeight); // if the computed value is still 0, it's possible that the browser is lying\n // and we want to check the offset values.\n // This code also runs wherever getComputedStyle doesn't exist.\n\n if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {\n var rule = \"offset\" + toTitleCase$1(widthOrHeight);\n computedWidthOrHeight = this.el_[rule];\n }\n\n return computedWidthOrHeight;\n }\n /**\n * An object that contains width and height values of the `Component`s\n * computed style. Uses `window.getComputedStyle`.\n *\n * @typedef {Object} Component~DimensionObject\n *\n * @property {number} width\n * The width of the `Component`s computed style.\n *\n * @property {number} height\n * The height of the `Component`s computed style.\n */\n\n /**\n * Get an object that contains computed width and height values of the\n * component's element.\n *\n * Uses `window.getComputedStyle`.\n *\n * @return {Component~DimensionObject}\n * The computed dimensions of the component's element.\n */\n ;\n\n _proto.currentDimensions = function currentDimensions() {\n return {\n width: this.currentDimension('width'),\n height: this.currentDimension('height')\n };\n }\n /**\n * Get the computed width of the component's element.\n *\n * Uses `window.getComputedStyle`.\n *\n * @return {number}\n * The computed width of the component's element.\n */\n ;\n\n _proto.currentWidth = function currentWidth() {\n return this.currentDimension('width');\n }\n /**\n * Get the computed height of the component's element.\n *\n * Uses `window.getComputedStyle`.\n *\n * @return {number}\n * The computed height of the component's element.\n */\n ;\n\n _proto.currentHeight = function currentHeight() {\n return this.currentDimension('height');\n }\n /**\n * Set the focus to this component\n */\n ;\n\n _proto.focus = function focus() {\n this.el_.focus();\n }\n /**\n * Remove the focus from this component\n */\n ;\n\n _proto.blur = function blur() {\n this.el_.blur();\n }\n /**\n * When this Component receives a `keydown` event which it does not process,\n * it passes the event to the Player for handling.\n *\n * @param {EventTarget~Event} event\n * The `keydown` event that caused this function to be called.\n */\n ;\n\n _proto.handleKeyDown = function handleKeyDown(event) {\n if (this.player_) {\n // We only stop propagation here because we want unhandled events to fall\n // back to the browser. Exclude Tab for focus trapping.\n if (!keycode.isEventKey(event, 'Tab')) {\n event.stopPropagation();\n }\n\n this.player_.handleKeyDown(event);\n }\n }\n /**\n * Many components used to have a `handleKeyPress` method, which was poorly\n * named because it listened to a `keydown` event. This method name now\n * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`\n * will not see their method calls stop working.\n *\n * @param {EventTarget~Event} event\n * The event that caused this function to be called.\n */\n ;\n\n _proto.handleKeyPress = function handleKeyPress(event) {\n this.handleKeyDown(event);\n }\n /**\n * Emit a 'tap' events when touch event support gets detected. This gets used to\n * support toggling the controls through a tap on the video. They get enabled\n * because every sub-component would have extra overhead otherwise.\n *\n * @private\n * @fires Component#tap\n * @listens Component#touchstart\n * @listens Component#touchmove\n * @listens Component#touchleave\n * @listens Component#touchcancel\n * @listens Component#touchend\n */\n ;\n\n _proto.emitTapEvents = function emitTapEvents() {\n // Track the start time so we can determine how long the touch lasted\n var touchStart = 0;\n var firstTouch = null; // Maximum movement allowed during a touch event to still be considered a tap\n // Other popular libs use anywhere from 2 (hammer.js) to 15,\n // so 10 seems like a nice, round number.\n\n var tapMovementThreshold = 10; // The maximum length a touch can be while still being considered a tap\n\n var touchTimeThreshold = 200;\n var couldBeTap;\n this.on('touchstart', function (event) {\n // If more than one finger, don't consider treating this as a click\n if (event.touches.length === 1) {\n // Copy pageX/pageY from the object\n firstTouch = {\n pageX: event.touches[0].pageX,\n pageY: event.touches[0].pageY\n }; // Record start time so we can detect a tap vs. \"touch and hold\"\n\n touchStart = window$1.performance.now(); // Reset couldBeTap tracking\n\n couldBeTap = true;\n }\n });\n this.on('touchmove', function (event) {\n // If more than one finger, don't consider treating this as a click\n if (event.touches.length > 1) {\n couldBeTap = false;\n } else if (firstTouch) {\n // Some devices will throw touchmoves for all but the slightest of taps.\n // So, if we moved only a small distance, this could still be a tap\n var xdiff = event.touches[0].pageX - firstTouch.pageX;\n var ydiff = event.touches[0].pageY - firstTouch.pageY;\n var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);\n\n if (touchDistance > tapMovementThreshold) {\n couldBeTap = false;\n }\n }\n });\n\n var noTap = function noTap() {\n couldBeTap = false;\n }; // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s\n\n\n this.on('touchleave', noTap);\n this.on('touchcancel', noTap); // When the touch ends, measure how long it took and trigger the appropriate\n // event\n\n this.on('touchend', function (event) {\n firstTouch = null; // Proceed only if the touchmove/leave/cancel event didn't happen\n\n if (couldBeTap === true) {\n // Measure how long the touch lasted\n var touchTime = window$1.performance.now() - touchStart; // Make sure the touch was less than the threshold to be considered a tap\n\n if (touchTime < touchTimeThreshold) {\n // Don't let browser turn this into a click\n event.preventDefault();\n /**\n * Triggered when a `Component` is tapped.\n *\n * @event Component#tap\n * @type {EventTarget~Event}\n */\n\n this.trigger('tap'); // It may be good to copy the touchend event object and change the\n // type to tap, if the other event properties aren't exact after\n // Events.fixEvent runs (e.g. event.target)\n }\n }\n });\n }\n /**\n * This function reports user activity whenever touch events happen. This can get\n * turned off by any sub-components that wants touch events to act another way.\n *\n * Report user touch activity when touch events occur. User activity gets used to\n * determine when controls should show/hide. It is simple when it comes to mouse\n * events, because any mouse event should show the controls. So we capture mouse\n * events that bubble up to the player and report activity when that happens.\n * With touch events it isn't as easy as `touchstart` and `touchend` toggle player\n * controls. So touch events can't help us at the player level either.\n *\n * User activity gets checked asynchronously. So what could happen is a tap event\n * on the video turns the controls off. Then the `touchend` event bubbles up to\n * the player. Which, if it reported user activity, would turn the controls right\n * back on. We also don't want to completely block touch events from bubbling up.\n * Furthermore a `touchmove` event and anything other than a tap, should not turn\n * controls back on.\n *\n * @listens Component#touchstart\n * @listens Component#touchmove\n * @listens Component#touchend\n * @listens Component#touchcancel\n */\n ;\n\n _proto.enableTouchActivity = function enableTouchActivity() {\n // Don't continue if the root player doesn't support reporting user activity\n if (!this.player() || !this.player().reportUserActivity) {\n return;\n } // listener for reporting that the user is active\n\n\n var report = bind(this.player(), this.player().reportUserActivity);\n var touchHolding;\n this.on('touchstart', function () {\n report(); // For as long as the they are touching the device or have their mouse down,\n // we consider them active even if they're not moving their finger or mouse.\n // So we want to continue to update that they are active\n\n this.clearInterval(touchHolding); // report at the same interval as activityCheck\n\n touchHolding = this.setInterval(report, 250);\n });\n\n var touchEnd = function touchEnd(event) {\n report(); // stop the interval that maintains activity if the touch is holding\n\n this.clearInterval(touchHolding);\n };\n\n this.on('touchmove', report);\n this.on('touchend', touchEnd);\n this.on('touchcancel', touchEnd);\n }\n /**\n * A callback that has no parameters and is bound into `Component`s context.\n *\n * @callback Component~GenericCallback\n * @this Component\n */\n\n /**\n * Creates a function that runs after an `x` millisecond timeout. This function is a\n * wrapper around `window.setTimeout`. There are a few reasons to use this one\n * instead though:\n * 1. It gets cleared via {@link Component#clearTimeout} when\n * {@link Component#dispose} gets called.\n * 2. The function callback will gets turned into a {@link Component~GenericCallback}\n *\n * > Note: You can't use `window.clearTimeout` on the id returned by this function. This\n * will cause its dispose listener not to get cleaned up! Please use\n * {@link Component#clearTimeout} or {@link Component#dispose} instead.\n *\n * @param {Component~GenericCallback} fn\n * The function that will be run after `timeout`.\n *\n * @param {number} timeout\n * Timeout in milliseconds to delay before executing the specified function.\n *\n * @return {number}\n * Returns a timeout ID that gets used to identify the timeout. It can also\n * get used in {@link Component#clearTimeout} to clear the timeout that\n * was set.\n *\n * @listens Component#dispose\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}\n */\n ;\n\n _proto.setTimeout = function setTimeout(fn, timeout) {\n var _this3 = this;\n\n // declare as variables so they are properly available in timeout function\n // eslint-disable-next-line\n var timeoutId;\n fn = bind(this, fn);\n this.clearTimersOnDispose_();\n timeoutId = window$1.setTimeout(function () {\n if (_this3.setTimeoutIds_.has(timeoutId)) {\n _this3.setTimeoutIds_[\"delete\"](timeoutId);\n }\n\n fn();\n }, timeout);\n this.setTimeoutIds_.add(timeoutId);\n return timeoutId;\n }\n /**\n * Clears a timeout that gets created via `window.setTimeout` or\n * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}\n * use this function instead of `window.clearTimout`. If you don't your dispose\n * listener will not get cleaned up until {@link Component#dispose}!\n *\n * @param {number} timeoutId\n * The id of the timeout to clear. The return value of\n * {@link Component#setTimeout} or `window.setTimeout`.\n *\n * @return {number}\n * Returns the timeout id that was cleared.\n *\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}\n */\n ;\n\n _proto.clearTimeout = function clearTimeout(timeoutId) {\n if (this.setTimeoutIds_.has(timeoutId)) {\n this.setTimeoutIds_[\"delete\"](timeoutId);\n window$1.clearTimeout(timeoutId);\n }\n\n return timeoutId;\n }\n /**\n * Creates a function that gets run every `x` milliseconds. This function is a wrapper\n * around `window.setInterval`. There are a few reasons to use this one instead though.\n * 1. It gets cleared via {@link Component#clearInterval} when\n * {@link Component#dispose} gets called.\n * 2. The function callback will be a {@link Component~GenericCallback}\n *\n * @param {Component~GenericCallback} fn\n * The function to run every `x` seconds.\n *\n * @param {number} interval\n * Execute the specified function every `x` milliseconds.\n *\n * @return {number}\n * Returns an id that can be used to identify the interval. It can also be be used in\n * {@link Component#clearInterval} to clear the interval.\n *\n * @listens Component#dispose\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}\n */\n ;\n\n _proto.setInterval = function setInterval(fn, interval) {\n fn = bind(this, fn);\n this.clearTimersOnDispose_();\n var intervalId = window$1.setInterval(fn, interval);\n this.setIntervalIds_.add(intervalId);\n return intervalId;\n }\n /**\n * Clears an interval that gets created via `window.setInterval` or\n * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}\n * use this function instead of `window.clearInterval`. If you don't your dispose\n * listener will not get cleaned up until {@link Component#dispose}!\n *\n * @param {number} intervalId\n * The id of the interval to clear. The return value of\n * {@link Component#setInterval} or `window.setInterval`.\n *\n * @return {number}\n * Returns the interval id that was cleared.\n *\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}\n */\n ;\n\n _proto.clearInterval = function clearInterval(intervalId) {\n if (this.setIntervalIds_.has(intervalId)) {\n this.setIntervalIds_[\"delete\"](intervalId);\n window$1.clearInterval(intervalId);\n }\n\n return intervalId;\n }\n /**\n * Queues up a callback to be passed to requestAnimationFrame (rAF), but\n * with a few extra bonuses:\n *\n * - Supports browsers that do not support rAF by falling back to\n * {@link Component#setTimeout}.\n *\n * - The callback is turned into a {@link Component~GenericCallback} (i.e.\n * bound to the component).\n *\n * - Automatic cancellation of the rAF callback is handled if the component\n * is disposed before it is called.\n *\n * @param {Component~GenericCallback} fn\n * A function that will be bound to this component and executed just\n * before the browser's next repaint.\n *\n * @return {number}\n * Returns an rAF ID that gets used to identify the timeout. It can\n * also be used in {@link Component#cancelAnimationFrame} to cancel\n * the animation frame callback.\n *\n * @listens Component#dispose\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}\n */\n ;\n\n _proto.requestAnimationFrame = function requestAnimationFrame(fn) {\n var _this4 = this;\n\n // Fall back to using a timer.\n if (!this.supportsRaf_) {\n return this.setTimeout(fn, 1000 / 60);\n }\n\n this.clearTimersOnDispose_(); // declare as variables so they are properly available in rAF function\n // eslint-disable-next-line\n\n var id;\n fn = bind(this, fn);\n id = window$1.requestAnimationFrame(function () {\n if (_this4.rafIds_.has(id)) {\n _this4.rafIds_[\"delete\"](id);\n }\n\n fn();\n });\n this.rafIds_.add(id);\n return id;\n }\n /**\n * Request an animation frame, but only one named animation\n * frame will be queued. Another will never be added until\n * the previous one finishes.\n *\n * @param {string} name\n * The name to give this requestAnimationFrame\n *\n * @param {Component~GenericCallback} fn\n * A function that will be bound to this component and executed just\n * before the browser's next repaint.\n */\n ;\n\n _proto.requestNamedAnimationFrame = function requestNamedAnimationFrame(name, fn) {\n var _this5 = this;\n\n if (this.namedRafs_.has(name)) {\n return;\n }\n\n this.clearTimersOnDispose_();\n fn = bind(this, fn);\n var id = this.requestAnimationFrame(function () {\n fn();\n\n if (_this5.namedRafs_.has(name)) {\n _this5.namedRafs_[\"delete\"](name);\n }\n });\n this.namedRafs_.set(name, id);\n return name;\n }\n /**\n * Cancels a current named animation frame if it exists.\n *\n * @param {string} name\n * The name of the requestAnimationFrame to cancel.\n */\n ;\n\n _proto.cancelNamedAnimationFrame = function cancelNamedAnimationFrame(name) {\n if (!this.namedRafs_.has(name)) {\n return;\n }\n\n this.cancelAnimationFrame(this.namedRafs_.get(name));\n this.namedRafs_[\"delete\"](name);\n }\n /**\n * Cancels a queued callback passed to {@link Component#requestAnimationFrame}\n * (rAF).\n *\n * If you queue an rAF callback via {@link Component#requestAnimationFrame},\n * use this function instead of `window.cancelAnimationFrame`. If you don't,\n * your dispose listener will not get cleaned up until {@link Component#dispose}!\n *\n * @param {number} id\n * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.\n *\n * @return {number}\n * Returns the rAF ID that was cleared.\n *\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}\n */\n ;\n\n _proto.cancelAnimationFrame = function cancelAnimationFrame(id) {\n // Fall back to using a timer.\n if (!this.supportsRaf_) {\n return this.clearTimeout(id);\n }\n\n if (this.rafIds_.has(id)) {\n this.rafIds_[\"delete\"](id);\n window$1.cancelAnimationFrame(id);\n }\n\n return id;\n }\n /**\n * A function to setup `requestAnimationFrame`, `setTimeout`,\n * and `setInterval`, clearing on dispose.\n *\n * > Previously each timer added and removed dispose listeners on it's own.\n * For better performance it was decided to batch them all, and use `Set`s\n * to track outstanding timer ids.\n *\n * @private\n */\n ;\n\n _proto.clearTimersOnDispose_ = function clearTimersOnDispose_() {\n var _this6 = this;\n\n if (this.clearingTimersOnDispose_) {\n return;\n }\n\n this.clearingTimersOnDispose_ = true;\n this.one('dispose', function () {\n [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(function (_ref) {\n var idName = _ref[0],\n cancelName = _ref[1];\n\n // for a `Set` key will actually be the value again\n // so forEach((val, val) =>` but for maps we want to use\n // the key.\n _this6[idName].forEach(function (val, key) {\n return _this6[cancelName](key);\n });\n });\n _this6.clearingTimersOnDispose_ = false;\n });\n }\n /**\n * Register a `Component` with `videojs` given the name and the component.\n *\n * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s\n * should be registered using {@link Tech.registerTech} or\n * {@link videojs:videojs.registerTech}.\n *\n * > NOTE: This function can also be seen on videojs as\n * {@link videojs:videojs.registerComponent}.\n *\n * @param {string} name\n * The name of the `Component` to register.\n *\n * @param {Component} ComponentToRegister\n * The `Component` class to register.\n *\n * @return {Component}\n * The `Component` that was registered.\n */\n ;\n\n Component.registerComponent = function registerComponent(name, ComponentToRegister) {\n if (typeof name !== 'string' || !name) {\n throw new Error(\"Illegal component name, \\\"\" + name + \"\\\"; must be a non-empty string.\");\n }\n\n var Tech = Component.getComponent('Tech'); // We need to make sure this check is only done if Tech has been registered.\n\n var isTech = Tech && Tech.isTech(ComponentToRegister);\n var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);\n\n if (isTech || !isComp) {\n var reason;\n\n if (isTech) {\n reason = 'techs must be registered using Tech.registerTech()';\n } else {\n reason = 'must be a Component subclass';\n }\n\n throw new Error(\"Illegal component, \\\"\" + name + \"\\\"; \" + reason + \".\");\n }\n\n name = toTitleCase$1(name);\n\n if (!Component.components_) {\n Component.components_ = {};\n }\n\n var Player = Component.getComponent('Player');\n\n if (name === 'Player' && Player && Player.players) {\n var players = Player.players;\n var playerNames = Object.keys(players); // If we have players that were disposed, then their name will still be\n // in Players.players. So, we must loop through and verify that the value\n // for each item is not null. This allows registration of the Player component\n // after all players have been disposed or before any were created.\n\n if (players && playerNames.length > 0 && playerNames.map(function (pname) {\n return players[pname];\n }).every(Boolean)) {\n throw new Error('Can not register Player component after player has been created.');\n }\n }\n\n Component.components_[name] = ComponentToRegister;\n Component.components_[toLowerCase(name)] = ComponentToRegister;\n return ComponentToRegister;\n }\n /**\n * Get a `Component` based on the name it was registered with.\n *\n * @param {string} name\n * The Name of the component to get.\n *\n * @return {Component}\n * The `Component` that got registered under the given name.\n */\n ;\n\n Component.getComponent = function getComponent(name) {\n if (!name || !Component.components_) {\n return;\n }\n\n return Component.components_[name];\n };\n\n return Component;\n}();\n/**\n * Whether or not this component supports `requestAnimationFrame`.\n *\n * This is exposed primarily for testing purposes.\n *\n * @private\n * @type {Boolean}\n */\n\n\nComponent$1.prototype.supportsRaf_ = typeof window$1.requestAnimationFrame === 'function' && typeof window$1.cancelAnimationFrame === 'function';\nComponent$1.registerComponent('Component', Component$1);\n\n/**\n * @file time-ranges.js\n * @module time-ranges\n */\n/**\n * Returns the time for the specified index at the start or end\n * of a TimeRange object.\n *\n * @typedef {Function} TimeRangeIndex\n *\n * @param {number} [index=0]\n * The range number to return the time for.\n *\n * @return {number}\n * The time offset at the specified index.\n *\n * @deprecated The index argument must be provided.\n * In the future, leaving it out will throw an error.\n */\n\n/**\n * An object that contains ranges of time.\n *\n * @typedef {Object} TimeRange\n *\n * @property {number} length\n * The number of time ranges represented by this object.\n *\n * @property {module:time-ranges~TimeRangeIndex} start\n * Returns the time offset at which a specified time range begins.\n *\n * @property {module:time-ranges~TimeRangeIndex} end\n * Returns the time offset at which a specified time range ends.\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges\n */\n\n/**\n * Check if any of the time ranges are over the maximum index.\n *\n * @private\n * @param {string} fnName\n * The function name to use for logging\n *\n * @param {number} index\n * The index to check\n *\n * @param {number} maxIndex\n * The maximum possible index\n *\n * @throws {Error} if the timeRanges provided are over the maxIndex\n */\n\nfunction rangeCheck(fnName, index, maxIndex) {\n if (typeof index !== 'number' || index < 0 || index > maxIndex) {\n throw new Error(\"Failed to execute '\" + fnName + \"' on 'TimeRanges': The index provided (\" + index + \") is non-numeric or out of bounds (0-\" + maxIndex + \").\");\n }\n}\n/**\n * Get the time for the specified index at the start or end\n * of a TimeRange object.\n *\n * @private\n * @param {string} fnName\n * The function name to use for logging\n *\n * @param {string} valueIndex\n * The property that should be used to get the time. should be\n * 'start' or 'end'\n *\n * @param {Array} ranges\n * An array of time ranges\n *\n * @param {Array} [rangeIndex=0]\n * The index to start the search at\n *\n * @return {number}\n * The time that offset at the specified index.\n *\n * @deprecated rangeIndex must be set to a value, in the future this will throw an error.\n * @throws {Error} if rangeIndex is more than the length of ranges\n */\n\n\nfunction getRange(fnName, valueIndex, ranges, rangeIndex) {\n rangeCheck(fnName, rangeIndex, ranges.length - 1);\n return ranges[rangeIndex][valueIndex];\n}\n/**\n * Create a time range object given ranges of time.\n *\n * @private\n * @param {Array} [ranges]\n * An array of time ranges.\n */\n\n\nfunction createTimeRangesObj(ranges) {\n var timeRangesObj;\n\n if (ranges === undefined || ranges.length === 0) {\n timeRangesObj = {\n length: 0,\n start: function start() {\n throw new Error('This TimeRanges object is empty');\n },\n end: function end() {\n throw new Error('This TimeRanges object is empty');\n }\n };\n } else {\n timeRangesObj = {\n length: ranges.length,\n start: getRange.bind(null, 'start', 0, ranges),\n end: getRange.bind(null, 'end', 1, ranges)\n };\n }\n\n if (window$1.Symbol && window$1.Symbol.iterator) {\n timeRangesObj[window$1.Symbol.iterator] = function () {\n return (ranges || []).values();\n };\n }\n\n return timeRangesObj;\n}\n/**\n * Create a `TimeRange` object which mimics an\n * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.\n *\n * @param {number|Array[]} start\n * The start of a single range (a number) or an array of ranges (an\n * array of arrays of two numbers each).\n *\n * @param {number} end\n * The end of a single range. Cannot be used with the array form of\n * the `start` argument.\n */\n\n\nfunction createTimeRanges(start, end) {\n if (Array.isArray(start)) {\n return createTimeRangesObj(start);\n } else if (start === undefined || end === undefined) {\n return createTimeRangesObj();\n }\n\n return createTimeRangesObj([[start, end]]);\n}\n\n/**\n * @file buffer.js\n * @module buffer\n */\n/**\n * Compute the percentage of the media that has been buffered.\n *\n * @param {TimeRange} buffered\n * The current `TimeRange` object representing buffered time ranges\n *\n * @param {number} duration\n * Total duration of the media\n *\n * @return {number}\n * Percent buffered of the total duration in decimal form.\n */\n\nfunction bufferedPercent(buffered, duration) {\n var bufferedDuration = 0;\n var start;\n var end;\n\n if (!duration) {\n return 0;\n }\n\n if (!buffered || !buffered.length) {\n buffered = createTimeRanges(0, 0);\n }\n\n for (var i = 0; i < buffered.length; i++) {\n start = buffered.start(i);\n end = buffered.end(i); // buffered end can be bigger than duration by a very small fraction\n\n if (end > duration) {\n end = duration;\n }\n\n bufferedDuration += end - start;\n }\n\n return bufferedDuration / duration;\n}\n\n/**\n * @file media-error.js\n */\n/**\n * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.\n *\n * @param {number|string|Object|MediaError} value\n * This can be of multiple types:\n * - number: should be a standard error code\n * - string: an error message (the code will be 0)\n * - Object: arbitrary properties\n * - `MediaError` (native): used to populate a video.js `MediaError` object\n * - `MediaError` (video.js): will return itself if it's already a\n * video.js `MediaError` object.\n *\n * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}\n * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}\n *\n * @class MediaError\n */\n\nfunction MediaError(value) {\n // Allow redundant calls to this constructor to avoid having `instanceof`\n // checks peppered around the code.\n if (value instanceof MediaError) {\n return value;\n }\n\n if (typeof value === 'number') {\n this.code = value;\n } else if (typeof value === 'string') {\n // default code is zero, so this is a custom error\n this.message = value;\n } else if (isObject(value)) {\n // We assign the `code` property manually because native `MediaError` objects\n // do not expose it as an own/enumerable property of the object.\n if (typeof value.code === 'number') {\n this.code = value.code;\n }\n\n assign(this, value);\n }\n\n if (!this.message) {\n this.message = MediaError.defaultMessages[this.code] || '';\n }\n}\n/**\n * The error code that refers two one of the defined `MediaError` types\n *\n * @type {Number}\n */\n\n\nMediaError.prototype.code = 0;\n/**\n * An optional message that to show with the error. Message is not part of the HTML5\n * video spec but allows for more informative custom errors.\n *\n * @type {String}\n */\n\nMediaError.prototype.message = '';\n/**\n * An optional status code that can be set by plugins to allow even more detail about\n * the error. For example a plugin might provide a specific HTTP status code and an\n * error message for that code. Then when the plugin gets that error this class will\n * know how to display an error message for it. This allows a custom message to show\n * up on the `Player` error overlay.\n *\n * @type {Array}\n */\n\nMediaError.prototype.status = null;\n/**\n * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the\n * specification listed under {@link MediaError} for more information.\n *\n * @enum {array}\n * @readonly\n * @property {string} 0 - MEDIA_ERR_CUSTOM\n * @property {string} 1 - MEDIA_ERR_ABORTED\n * @property {string} 2 - MEDIA_ERR_NETWORK\n * @property {string} 3 - MEDIA_ERR_DECODE\n * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED\n * @property {string} 5 - MEDIA_ERR_ENCRYPTED\n */\n\nMediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];\n/**\n * The default `MediaError` messages based on the {@link MediaError.errorTypes}.\n *\n * @type {Array}\n * @constant\n */\n\nMediaError.defaultMessages = {\n 1: 'You aborted the media playback',\n 2: 'A network error caused the media download to fail part-way.',\n 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',\n 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',\n 5: 'The media is encrypted and we do not have the keys to decrypt it.'\n}; // Add types as properties on MediaError\n// e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;\n\nfor (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {\n MediaError[MediaError.errorTypes[errNum]] = errNum; // values should be accessible on both the class and instance\n\n MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;\n} // jsdocs for instance/static members added above\n\n/**\n * Returns whether an object is `Promise`-like (i.e. has a `then` method).\n *\n * @param {Object} value\n * An object that may or may not be `Promise`-like.\n *\n * @return {boolean}\n * Whether or not the object is `Promise`-like.\n */\nfunction isPromise(value) {\n return value !== undefined && value !== null && typeof value.then === 'function';\n}\n/**\n * Silence a Promise-like object.\n *\n * This is useful for avoiding non-harmful, but potentially confusing \"uncaught\n * play promise\" rejection error messages.\n *\n * @param {Object} value\n * An object that may or may not be `Promise`-like.\n */\n\nfunction silencePromise(value) {\n if (isPromise(value)) {\n value.then(null, function (e) {});\n }\n}\n\n/**\n * @file text-track-list-converter.js Utilities for capturing text track state and\n * re-creating tracks based on a capture.\n *\n * @module text-track-list-converter\n */\n\n/**\n * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that\n * represents the {@link TextTrack}'s state.\n *\n * @param {TextTrack} track\n * The text track to query.\n *\n * @return {Object}\n * A serializable javascript representation of the TextTrack.\n * @private\n */\nvar trackToJson_ = function trackToJson_(track) {\n var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {\n if (track[prop]) {\n acc[prop] = track[prop];\n }\n\n return acc;\n }, {\n cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {\n return {\n startTime: cue.startTime,\n endTime: cue.endTime,\n text: cue.text,\n id: cue.id\n };\n })\n });\n return ret;\n};\n/**\n * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the\n * state of all {@link TextTrack}s currently configured. The return array is compatible with\n * {@link text-track-list-converter:jsonToTextTracks}.\n *\n * @param {Tech} tech\n * The tech object to query\n *\n * @return {Array}\n * A serializable javascript representation of the {@link Tech}s\n * {@link TextTrackList}.\n */\n\n\nvar textTracksToJson = function textTracksToJson(tech) {\n var trackEls = tech.$$('track');\n var trackObjs = Array.prototype.map.call(trackEls, function (t) {\n return t.track;\n });\n var tracks = Array.prototype.map.call(trackEls, function (trackEl) {\n var json = trackToJson_(trackEl.track);\n\n if (trackEl.src) {\n json.src = trackEl.src;\n }\n\n return json;\n });\n return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {\n return trackObjs.indexOf(track) === -1;\n }).map(trackToJson_));\n};\n/**\n * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript\n * object {@link TextTrack} representations.\n *\n * @param {Array} json\n * An array of `TextTrack` representation objects, like those that would be\n * produced by `textTracksToJson`.\n *\n * @param {Tech} tech\n * The `Tech` to create the `TextTrack`s on.\n */\n\n\nvar jsonToTextTracks = function jsonToTextTracks(json, tech) {\n json.forEach(function (track) {\n var addedTrack = tech.addRemoteTextTrack(track).track;\n\n if (!track.src && track.cues) {\n track.cues.forEach(function (cue) {\n return addedTrack.addCue(cue);\n });\n }\n });\n return tech.textTracks();\n};\n\nvar textTrackConverter = {\n textTracksToJson: textTracksToJson,\n jsonToTextTracks: jsonToTextTracks,\n trackToJson_: trackToJson_\n};\n\nvar MODAL_CLASS_NAME = 'vjs-modal-dialog';\n/**\n * The `ModalDialog` displays over the video and its controls, which blocks\n * interaction with the player until it is closed.\n *\n * Modal dialogs include a \"Close\" button and will close when that button\n * is activated - or when ESC is pressed anywhere.\n *\n * @extends Component\n */\n\nvar ModalDialog = /*#__PURE__*/function (_Component) {\n _inheritsLoose(ModalDialog, _Component);\n\n /**\n * Create an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Mixed} [options.content=undefined]\n * Provide customized content for this modal.\n *\n * @param {string} [options.description]\n * A text description for the modal, primarily for accessibility.\n *\n * @param {boolean} [options.fillAlways=false]\n * Normally, modals are automatically filled only the first time\n * they open. This tells the modal to refresh its content\n * every time it opens.\n *\n * @param {string} [options.label]\n * A text label for the modal, primarily for accessibility.\n *\n * @param {boolean} [options.pauseOnOpen=true]\n * If `true`, playback will will be paused if playing when\n * the modal opens, and resumed when it closes.\n *\n * @param {boolean} [options.temporary=true]\n * If `true`, the modal can only be opened once; it will be\n * disposed as soon as it's closed.\n *\n * @param {boolean} [options.uncloseable=false]\n * If `true`, the user will not be able to close the modal\n * through the UI in the normal ways. Programmatic closing is\n * still possible.\n */\n function ModalDialog(player, options) {\n var _this;\n\n _this = _Component.call(this, player, options) || this;\n\n _this.handleKeyDown_ = function (e) {\n return _this.handleKeyDown(e);\n };\n\n _this.close_ = function (e) {\n return _this.close(e);\n };\n\n _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;\n\n _this.closeable(!_this.options_.uncloseable);\n\n _this.content(_this.options_.content); // Make sure the contentEl is defined AFTER any children are initialized\n // because we only want the contents of the modal in the contentEl\n // (not the UI elements like the close button).\n\n\n _this.contentEl_ = createEl('div', {\n className: MODAL_CLASS_NAME + \"-content\"\n }, {\n role: 'document'\n });\n _this.descEl_ = createEl('p', {\n className: MODAL_CLASS_NAME + \"-description vjs-control-text\",\n id: _this.el().getAttribute('aria-describedby')\n });\n textContent(_this.descEl_, _this.description());\n\n _this.el_.appendChild(_this.descEl_);\n\n _this.el_.appendChild(_this.contentEl_);\n\n return _this;\n }\n /**\n * Create the `ModalDialog`'s DOM element\n *\n * @return {Element}\n * The DOM element that gets created.\n */\n\n\n var _proto = ModalDialog.prototype;\n\n _proto.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: this.buildCSSClass(),\n tabIndex: -1\n }, {\n 'aria-describedby': this.id() + \"_description\",\n 'aria-hidden': 'true',\n 'aria-label': this.label(),\n 'role': 'dialog'\n });\n };\n\n _proto.dispose = function dispose() {\n this.contentEl_ = null;\n this.descEl_ = null;\n this.previouslyActiveEl_ = null;\n\n _Component.prototype.dispose.call(this);\n }\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n ;\n\n _proto.buildCSSClass = function buildCSSClass() {\n return MODAL_CLASS_NAME + \" vjs-hidden \" + _Component.prototype.buildCSSClass.call(this);\n }\n /**\n * Returns the label string for this modal. Primarily used for accessibility.\n *\n * @return {string}\n * the localized or raw label of this modal.\n */\n ;\n\n _proto.label = function label() {\n return this.localize(this.options_.label || 'Modal Window');\n }\n /**\n * Returns the description string for this modal. Primarily used for\n * accessibility.\n *\n * @return {string}\n * The localized or raw description of this modal.\n */\n ;\n\n _proto.description = function description() {\n var desc = this.options_.description || this.localize('This is a modal window.'); // Append a universal closeability message if the modal is closeable.\n\n if (this.closeable()) {\n desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');\n }\n\n return desc;\n }\n /**\n * Opens the modal.\n *\n * @fires ModalDialog#beforemodalopen\n * @fires ModalDialog#modalopen\n */\n ;\n\n _proto.open = function open() {\n if (!this.opened_) {\n var player = this.player();\n /**\n * Fired just before a `ModalDialog` is opened.\n *\n * @event ModalDialog#beforemodalopen\n * @type {EventTarget~Event}\n */\n\n this.trigger('beforemodalopen');\n this.opened_ = true; // Fill content if the modal has never opened before and\n // never been filled.\n\n if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {\n this.fill();\n } // If the player was playing, pause it and take note of its previously\n // playing state.\n\n\n this.wasPlaying_ = !player.paused();\n\n if (this.options_.pauseOnOpen && this.wasPlaying_) {\n player.pause();\n }\n\n this.on('keydown', this.handleKeyDown_); // Hide controls and note if they were enabled.\n\n this.hadControls_ = player.controls();\n player.controls(false);\n this.show();\n this.conditionalFocus_();\n this.el().setAttribute('aria-hidden', 'false');\n /**\n * Fired just after a `ModalDialog` is opened.\n *\n * @event ModalDialog#modalopen\n * @type {EventTarget~Event}\n */\n\n this.trigger('modalopen');\n this.hasBeenOpened_ = true;\n }\n }\n /**\n * If the `ModalDialog` is currently open or closed.\n *\n * @param {boolean} [value]\n * If given, it will open (`true`) or close (`false`) the modal.\n *\n * @return {boolean}\n * the current open state of the modaldialog\n */\n ;\n\n _proto.opened = function opened(value) {\n if (typeof value === 'boolean') {\n this[value ? 'open' : 'close']();\n }\n\n return this.opened_;\n }\n /**\n * Closes the modal, does nothing if the `ModalDialog` is\n * not open.\n *\n * @fires ModalDialog#beforemodalclose\n * @fires ModalDialog#modalclose\n */\n ;\n\n _proto.close = function close() {\n if (!this.opened_) {\n return;\n }\n\n var player = this.player();\n /**\n * Fired just before a `ModalDialog` is closed.\n *\n * @event ModalDialog#beforemodalclose\n * @type {EventTarget~Event}\n */\n\n this.trigger('beforemodalclose');\n this.opened_ = false;\n\n if (this.wasPlaying_ && this.options_.pauseOnOpen) {\n player.play();\n }\n\n this.off('keydown', this.handleKeyDown_);\n\n if (this.hadControls_) {\n player.controls(true);\n }\n\n this.hide();\n this.el().setAttribute('aria-hidden', 'true');\n /**\n * Fired just after a `ModalDialog` is closed.\n *\n * @event ModalDialog#modalclose\n * @type {EventTarget~Event}\n */\n\n this.trigger('modalclose');\n this.conditionalBlur_();\n\n if (this.options_.temporary) {\n this.dispose();\n }\n }\n /**\n * Check to see if the `ModalDialog` is closeable via the UI.\n *\n * @param {boolean} [value]\n * If given as a boolean, it will set the `closeable` option.\n *\n * @return {boolean}\n * Returns the final value of the closable option.\n */\n ;\n\n _proto.closeable = function closeable(value) {\n if (typeof value === 'boolean') {\n var closeable = this.closeable_ = !!value;\n var close = this.getChild('closeButton'); // If this is being made closeable and has no close button, add one.\n\n if (closeable && !close) {\n // The close button should be a child of the modal - not its\n // content element, so temporarily change the content element.\n var temp = this.contentEl_;\n this.contentEl_ = this.el_;\n close = this.addChild('closeButton', {\n controlText: 'Close Modal Dialog'\n });\n this.contentEl_ = temp;\n this.on(close, 'close', this.close_);\n } // If this is being made uncloseable and has a close button, remove it.\n\n\n if (!closeable && close) {\n this.off(close, 'close', this.close_);\n this.removeChild(close);\n close.dispose();\n }\n }\n\n return this.closeable_;\n }\n /**\n * Fill the modal's content element with the modal's \"content\" option.\n * The content element will be emptied before this change takes place.\n */\n ;\n\n _proto.fill = function fill() {\n this.fillWith(this.content());\n }\n /**\n * Fill the modal's content element with arbitrary content.\n * The content element will be emptied before this change takes place.\n *\n * @fires ModalDialog#beforemodalfill\n * @fires ModalDialog#modalfill\n *\n * @param {Mixed} [content]\n * The same rules apply to this as apply to the `content` option.\n */\n ;\n\n _proto.fillWith = function fillWith(content) {\n var contentEl = this.contentEl();\n var parentEl = contentEl.parentNode;\n var nextSiblingEl = contentEl.nextSibling;\n /**\n * Fired just before a `ModalDialog` is filled with content.\n *\n * @event ModalDialog#beforemodalfill\n * @type {EventTarget~Event}\n */\n\n this.trigger('beforemodalfill');\n this.hasBeenFilled_ = true; // Detach the content element from the DOM before performing\n // manipulation to avoid modifying the live DOM multiple times.\n\n parentEl.removeChild(contentEl);\n this.empty();\n insertContent(contentEl, content);\n /**\n * Fired just after a `ModalDialog` is filled with content.\n *\n * @event ModalDialog#modalfill\n * @type {EventTarget~Event}\n */\n\n this.trigger('modalfill'); // Re-inject the re-filled content element.\n\n if (nextSiblingEl) {\n parentEl.insertBefore(contentEl, nextSiblingEl);\n } else {\n parentEl.appendChild(contentEl);\n } // make sure that the close button is last in the dialog DOM\n\n\n var closeButton = this.getChild('closeButton');\n\n if (closeButton) {\n parentEl.appendChild(closeButton.el_);\n }\n }\n /**\n * Empties the content element. This happens anytime the modal is filled.\n *\n * @fires ModalDialog#beforemodalempty\n * @fires ModalDialog#modalempty\n */\n ;\n\n _proto.empty = function empty() {\n /**\n * Fired just before a `ModalDialog` is emptied.\n *\n * @event ModalDialog#beforemodalempty\n * @type {EventTarget~Event}\n */\n this.trigger('beforemodalempty');\n emptyEl(this.contentEl());\n /**\n * Fired just after a `ModalDialog` is emptied.\n *\n * @event ModalDialog#modalempty\n * @type {EventTarget~Event}\n */\n\n this.trigger('modalempty');\n }\n /**\n * Gets or sets the modal content, which gets normalized before being\n * rendered into the DOM.\n *\n * This does not update the DOM or fill the modal, but it is called during\n * that process.\n *\n * @param {Mixed} [value]\n * If defined, sets the internal content value to be used on the\n * next call(s) to `fill`. This value is normalized before being\n * inserted. To \"clear\" the internal content value, pass `null`.\n *\n * @return {Mixed}\n * The current content of the modal dialog\n */\n ;\n\n _proto.content = function content(value) {\n if (typeof value !== 'undefined') {\n this.content_ = value;\n }\n\n return this.content_;\n }\n /**\n * conditionally focus the modal dialog if focus was previously on the player.\n *\n * @private\n */\n ;\n\n _proto.conditionalFocus_ = function conditionalFocus_() {\n var activeEl = document.activeElement;\n var playerEl = this.player_.el_;\n this.previouslyActiveEl_ = null;\n\n if (playerEl.contains(activeEl) || playerEl === activeEl) {\n this.previouslyActiveEl_ = activeEl;\n this.focus();\n }\n }\n /**\n * conditionally blur the element and refocus the last focused element\n *\n * @private\n */\n ;\n\n _proto.conditionalBlur_ = function conditionalBlur_() {\n if (this.previouslyActiveEl_) {\n this.previouslyActiveEl_.focus();\n this.previouslyActiveEl_ = null;\n }\n }\n /**\n * Keydown handler. Attached when modal is focused.\n *\n * @listens keydown\n */\n ;\n\n _proto.handleKeyDown = function handleKeyDown(event) {\n // Do not allow keydowns to reach out of the modal dialog.\n event.stopPropagation();\n\n if (keycode.isEventKey(event, 'Escape') && this.closeable()) {\n event.preventDefault();\n this.close();\n return;\n } // exit early if it isn't a tab key\n\n\n if (!keycode.isEventKey(event, 'Tab')) {\n return;\n }\n\n var focusableEls = this.focusableEls_();\n var activeEl = this.el_.querySelector(':focus');\n var focusIndex;\n\n for (var i = 0; i < focusableEls.length; i++) {\n if (activeEl === focusableEls[i]) {\n focusIndex = i;\n break;\n }\n }\n\n if (document.activeElement === this.el_) {\n focusIndex = 0;\n }\n\n if (event.shiftKey && focusIndex === 0) {\n focusableEls[focusableEls.length - 1].focus();\n event.preventDefault();\n } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {\n focusableEls[0].focus();\n event.preventDefault();\n }\n }\n /**\n * get all focusable elements\n *\n * @private\n */\n ;\n\n _proto.focusableEls_ = function focusableEls_() {\n var allChildren = this.el_.querySelectorAll('*');\n return Array.prototype.filter.call(allChildren, function (child) {\n return (child instanceof window$1.HTMLAnchorElement || child instanceof window$1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window$1.HTMLInputElement || child instanceof window$1.HTMLSelectElement || child instanceof window$1.HTMLTextAreaElement || child instanceof window$1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window$1.HTMLIFrameElement || child instanceof window$1.HTMLObjectElement || child instanceof window$1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');\n });\n };\n\n return ModalDialog;\n}(Component$1);\n/**\n * Default options for `ModalDialog` default options.\n *\n * @type {Object}\n * @private\n */\n\n\nModalDialog.prototype.options_ = {\n pauseOnOpen: true,\n temporary: true\n};\nComponent$1.registerComponent('ModalDialog', ModalDialog);\n\n/**\n * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and\n * {@link VideoTrackList}\n *\n * @extends EventTarget\n */\n\nvar TrackList = /*#__PURE__*/function (_EventTarget) {\n _inheritsLoose(TrackList, _EventTarget);\n\n /**\n * Create an instance of this class\n *\n * @param {Track[]} tracks\n * A list of tracks to initialize the list with.\n *\n * @abstract\n */\n function TrackList(tracks) {\n var _this;\n\n if (tracks === void 0) {\n tracks = [];\n }\n\n _this = _EventTarget.call(this) || this;\n _this.tracks_ = [];\n /**\n * @memberof TrackList\n * @member {number} length\n * The current number of `Track`s in the this Trackist.\n * @instance\n */\n\n Object.defineProperty(_assertThisInitialized(_this), 'length', {\n get: function get() {\n return this.tracks_.length;\n }\n });\n\n for (var i = 0; i < tracks.length; i++) {\n _this.addTrack(tracks[i]);\n }\n\n return _this;\n }\n /**\n * Add a {@link Track} to the `TrackList`\n *\n * @param {Track} track\n * The audio, video, or text track to add to the list.\n *\n * @fires TrackList#addtrack\n */\n\n\n var _proto = TrackList.prototype;\n\n _proto.addTrack = function addTrack(track) {\n var _this2 = this;\n\n var index = this.tracks_.length;\n\n if (!('' + index in this)) {\n Object.defineProperty(this, index, {\n get: function get() {\n return this.tracks_[index];\n }\n });\n } // Do not add duplicate tracks\n\n\n if (this.tracks_.indexOf(track) === -1) {\n this.tracks_.push(track);\n /**\n * Triggered when a track is added to a track list.\n *\n * @event TrackList#addtrack\n * @type {EventTarget~Event}\n * @property {Track} track\n * A reference to track that was added.\n */\n\n this.trigger({\n track: track,\n type: 'addtrack',\n target: this\n });\n }\n /**\n * Triggered when a track label is changed.\n *\n * @event TrackList#addtrack\n * @type {EventTarget~Event}\n * @property {Track} track\n * A reference to track that was added.\n */\n\n\n track.labelchange_ = function () {\n _this2.trigger({\n track: track,\n type: 'labelchange',\n target: _this2\n });\n };\n\n if (isEvented(track)) {\n track.addEventListener('labelchange', track.labelchange_);\n }\n }\n /**\n * Remove a {@link Track} from the `TrackList`\n *\n * @param {Track} rtrack\n * The audio, video, or text track to remove from the list.\n *\n * @fires TrackList#removetrack\n */\n ;\n\n _proto.removeTrack = function removeTrack(rtrack) {\n var track;\n\n for (var i = 0, l = this.length; i < l; i++) {\n if (this[i] === rtrack) {\n track = this[i];\n\n if (track.off) {\n track.off();\n }\n\n this.tracks_.splice(i, 1);\n break;\n }\n }\n\n if (!track) {\n return;\n }\n /**\n * Triggered when a track is removed from track list.\n *\n * @event TrackList#removetrack\n * @type {EventTarget~Event}\n * @property {Track} track\n * A reference to track that was removed.\n */\n\n\n this.trigger({\n track: track,\n type: 'removetrack',\n target: this\n });\n }\n /**\n * Get a Track from the TrackList by a tracks id\n *\n * @param {string} id - the id of the track to get\n * @method getTrackById\n * @return {Track}\n * @private\n */\n ;\n\n _proto.getTrackById = function getTrackById(id) {\n var result = null;\n\n for (var i = 0, l = this.length; i < l; i++) {\n var track = this[i];\n\n if (track.id === id) {\n result = track;\n break;\n }\n }\n\n return result;\n };\n\n return TrackList;\n}(EventTarget$2);\n/**\n * Triggered when a different track is selected/enabled.\n *\n * @event TrackList#change\n * @type {EventTarget~Event}\n */\n\n/**\n * Events that can be called with on + eventName. See {@link EventHandler}.\n *\n * @property {Object} TrackList#allowedEvents_\n * @private\n */\n\n\nTrackList.prototype.allowedEvents_ = {\n change: 'change',\n addtrack: 'addtrack',\n removetrack: 'removetrack',\n labelchange: 'labelchange'\n}; // emulate attribute EventHandler support to allow for feature detection\n\nfor (var event in TrackList.prototype.allowedEvents_) {\n TrackList.prototype['on' + event] = null;\n}\n\n/**\n * Anywhere we call this function we diverge from the spec\n * as we only support one enabled audiotrack at a time\n *\n * @param {AudioTrackList} list\n * list to work on\n *\n * @param {AudioTrack} track\n * The track to skip\n *\n * @private\n */\n\nvar disableOthers$1 = function disableOthers(list, track) {\n for (var i = 0; i < list.length; i++) {\n if (!Object.keys(list[i]).length || track.id === list[i].id) {\n continue;\n } // another audio track is enabled, disable it\n\n\n list[i].enabled = false;\n }\n};\n/**\n * The current list of {@link AudioTrack} for a media file.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}\n * @extends TrackList\n */\n\n\nvar AudioTrackList = /*#__PURE__*/function (_TrackList) {\n _inheritsLoose(AudioTrackList, _TrackList);\n\n /**\n * Create an instance of this class.\n *\n * @param {AudioTrack[]} [tracks=[]]\n * A list of `AudioTrack` to instantiate the list with.\n */\n function AudioTrackList(tracks) {\n var _this;\n\n if (tracks === void 0) {\n tracks = [];\n }\n\n // make sure only 1 track is enabled\n // sorted from last index to first index\n for (var i = tracks.length - 1; i >= 0; i--) {\n if (tracks[i].enabled) {\n disableOthers$1(tracks, tracks[i]);\n break;\n }\n }\n\n _this = _TrackList.call(this, tracks) || this;\n _this.changing_ = false;\n return _this;\n }\n /**\n * Add an {@link AudioTrack} to the `AudioTrackList`.\n *\n * @param {AudioTrack} track\n * The AudioTrack to add to the list\n *\n * @fires TrackList#addtrack\n */\n\n\n var _proto = AudioTrackList.prototype;\n\n _proto.addTrack = function addTrack(track) {\n var _this2 = this;\n\n if (track.enabled) {\n disableOthers$1(this, track);\n }\n\n _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this\n\n\n if (!track.addEventListener) {\n return;\n }\n\n track.enabledChange_ = function () {\n // when we are disabling other tracks (since we don't support\n // more than one track at a time) we will set changing_\n // to true so that we don't trigger additional change events\n if (_this2.changing_) {\n return;\n }\n\n _this2.changing_ = true;\n disableOthers$1(_this2, track);\n _this2.changing_ = false;\n\n _this2.trigger('change');\n };\n /**\n * @listens AudioTrack#enabledchange\n * @fires TrackList#change\n */\n\n\n track.addEventListener('enabledchange', track.enabledChange_);\n };\n\n _proto.removeTrack = function removeTrack(rtrack) {\n _TrackList.prototype.removeTrack.call(this, rtrack);\n\n if (rtrack.removeEventListener && rtrack.enabledChange_) {\n rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);\n rtrack.enabledChange_ = null;\n }\n };\n\n return AudioTrackList;\n}(TrackList);\n\n/**\n * Un-select all other {@link VideoTrack}s that are selected.\n *\n * @param {VideoTrackList} list\n * list to work on\n *\n * @param {VideoTrack} track\n * The track to skip\n *\n * @private\n */\n\nvar disableOthers = function disableOthers(list, track) {\n for (var i = 0; i < list.length; i++) {\n if (!Object.keys(list[i]).length || track.id === list[i].id) {\n continue;\n } // another video track is enabled, disable it\n\n\n list[i].selected = false;\n }\n};\n/**\n * The current list of {@link VideoTrack} for a video.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}\n * @extends TrackList\n */\n\n\nvar VideoTrackList = /*#__PURE__*/function (_TrackList) {\n _inheritsLoose(VideoTrackList, _TrackList);\n\n /**\n * Create an instance of this class.\n *\n * @param {VideoTrack[]} [tracks=[]]\n * A list of `VideoTrack` to instantiate the list with.\n */\n function VideoTrackList(tracks) {\n var _this;\n\n if (tracks === void 0) {\n tracks = [];\n }\n\n // make sure only 1 track is enabled\n // sorted from last index to first index\n for (var i = tracks.length - 1; i >= 0; i--) {\n if (tracks[i].selected) {\n disableOthers(tracks, tracks[i]);\n break;\n }\n }\n\n _this = _TrackList.call(this, tracks) || this;\n _this.changing_ = false;\n /**\n * @member {number} VideoTrackList#selectedIndex\n * The current index of the selected {@link VideoTrack`}.\n */\n\n Object.defineProperty(_assertThisInitialized(_this), 'selectedIndex', {\n get: function get() {\n for (var _i = 0; _i < this.length; _i++) {\n if (this[_i].selected) {\n return _i;\n }\n }\n\n return -1;\n },\n set: function set() {}\n });\n return _this;\n }\n /**\n * Add a {@link VideoTrack} to the `VideoTrackList`.\n *\n * @param {VideoTrack} track\n * The VideoTrack to add to the list\n *\n * @fires TrackList#addtrack\n */\n\n\n var _proto = VideoTrackList.prototype;\n\n _proto.addTrack = function addTrack(track) {\n var _this2 = this;\n\n if (track.selected) {\n disableOthers(this, track);\n }\n\n _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this\n\n\n if (!track.addEventListener) {\n return;\n }\n\n track.selectedChange_ = function () {\n if (_this2.changing_) {\n return;\n }\n\n _this2.changing_ = true;\n disableOthers(_this2, track);\n _this2.changing_ = false;\n\n _this2.trigger('change');\n };\n /**\n * @listens VideoTrack#selectedchange\n * @fires TrackList#change\n */\n\n\n track.addEventListener('selectedchange', track.selectedChange_);\n };\n\n _proto.removeTrack = function removeTrack(rtrack) {\n _TrackList.prototype.removeTrack.call(this, rtrack);\n\n if (rtrack.removeEventListener && rtrack.selectedChange_) {\n rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);\n rtrack.selectedChange_ = null;\n }\n };\n\n return VideoTrackList;\n}(TrackList);\n\n/**\n * The current list of {@link TextTrack} for a media file.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}\n * @extends TrackList\n */\n\nvar TextTrackList = /*#__PURE__*/function (_TrackList) {\n _inheritsLoose(TextTrackList, _TrackList);\n\n function TextTrackList() {\n return _TrackList.apply(this, arguments) || this;\n }\n\n var _proto = TextTrackList.prototype;\n\n /**\n * Add a {@link TextTrack} to the `TextTrackList`\n *\n * @param {TextTrack} track\n * The text track to add to the list.\n *\n * @fires TrackList#addtrack\n */\n _proto.addTrack = function addTrack(track) {\n var _this = this;\n\n _TrackList.prototype.addTrack.call(this, track);\n\n if (!this.queueChange_) {\n this.queueChange_ = function () {\n return _this.queueTrigger('change');\n };\n }\n\n if (!this.triggerSelectedlanguagechange) {\n this.triggerSelectedlanguagechange_ = function () {\n return _this.trigger('selectedlanguagechange');\n };\n }\n /**\n * @listens TextTrack#modechange\n * @fires TrackList#change\n */\n\n\n track.addEventListener('modechange', this.queueChange_);\n var nonLanguageTextTrackKind = ['metadata', 'chapters'];\n\n if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {\n track.addEventListener('modechange', this.triggerSelectedlanguagechange_);\n }\n };\n\n _proto.removeTrack = function removeTrack(rtrack) {\n _TrackList.prototype.removeTrack.call(this, rtrack); // manually remove the event handlers we added\n\n\n if (rtrack.removeEventListener) {\n if (this.queueChange_) {\n rtrack.removeEventListener('modechange', this.queueChange_);\n }\n\n if (this.selectedlanguagechange_) {\n rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);\n }\n }\n };\n\n return TextTrackList;\n}(TrackList);\n\n/**\n * @file html-track-element-list.js\n */\n\n/**\n * The current list of {@link HtmlTrackElement}s.\n */\nvar HtmlTrackElementList = /*#__PURE__*/function () {\n /**\n * Create an instance of this class.\n *\n * @param {HtmlTrackElement[]} [tracks=[]]\n * A list of `HtmlTrackElement` to instantiate the list with.\n */\n function HtmlTrackElementList(trackElements) {\n if (trackElements === void 0) {\n trackElements = [];\n }\n\n this.trackElements_ = [];\n /**\n * @memberof HtmlTrackElementList\n * @member {number} length\n * The current number of `Track`s in the this Trackist.\n * @instance\n */\n\n Object.defineProperty(this, 'length', {\n get: function get() {\n return this.trackElements_.length;\n }\n });\n\n for (var i = 0, length = trackElements.length; i < length; i++) {\n this.addTrackElement_(trackElements[i]);\n }\n }\n /**\n * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`\n *\n * @param {HtmlTrackElement} trackElement\n * The track element to add to the list.\n *\n * @private\n */\n\n\n var _proto = HtmlTrackElementList.prototype;\n\n _proto.addTrackElement_ = function addTrackElement_(trackElement) {\n var index = this.trackElements_.length;\n\n if (!('' + index in this)) {\n Object.defineProperty(this, index, {\n get: function get() {\n return this.trackElements_[index];\n }\n });\n } // Do not add duplicate elements\n\n\n if (this.trackElements_.indexOf(trackElement) === -1) {\n this.trackElements_.push(trackElement);\n }\n }\n /**\n * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an\n * {@link TextTrack}.\n *\n * @param {TextTrack} track\n * The track associated with a track element.\n *\n * @return {HtmlTrackElement|undefined}\n * The track element that was found or undefined.\n *\n * @private\n */\n ;\n\n _proto.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {\n var trackElement_;\n\n for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n if (track === this.trackElements_[i].track) {\n trackElement_ = this.trackElements_[i];\n break;\n }\n }\n\n return trackElement_;\n }\n /**\n * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`\n *\n * @param {HtmlTrackElement} trackElement\n * The track element to remove from the list.\n *\n * @private\n */\n ;\n\n _proto.removeTrackElement_ = function removeTrackElement_(trackElement) {\n for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n if (trackElement === this.trackElements_[i]) {\n if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {\n this.trackElements_[i].track.off();\n }\n\n if (typeof this.trackElements_[i].off === 'function') {\n this.trackElements_[i].off();\n }\n\n this.trackElements_.splice(i, 1);\n break;\n }\n }\n };\n\n return HtmlTrackElementList;\n}();\n\n/**\n * @file text-track-cue-list.js\n */\n\n/**\n * @typedef {Object} TextTrackCueList~TextTrackCue\n *\n * @property {string} id\n * The unique id for this text track cue\n *\n * @property {number} startTime\n * The start time for this text track cue\n *\n * @property {number} endTime\n * The end time for this text track cue\n *\n * @property {boolean} pauseOnExit\n * Pause when the end time is reached if true.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}\n */\n\n/**\n * A List of TextTrackCues.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}\n */\nvar TextTrackCueList = /*#__PURE__*/function () {\n /**\n * Create an instance of this class..\n *\n * @param {Array} cues\n * A list of cues to be initialized with\n */\n function TextTrackCueList(cues) {\n TextTrackCueList.prototype.setCues_.call(this, cues);\n /**\n * @memberof TextTrackCueList\n * @member {number} length\n * The current number of `TextTrackCue`s in the TextTrackCueList.\n * @instance\n */\n\n Object.defineProperty(this, 'length', {\n get: function get() {\n return this.length_;\n }\n });\n }\n /**\n * A setter for cues in this list. Creates getters\n * an an index for the cues.\n *\n * @param {Array} cues\n * An array of cues to set\n *\n * @private\n */\n\n\n var _proto = TextTrackCueList.prototype;\n\n _proto.setCues_ = function setCues_(cues) {\n var oldLength = this.length || 0;\n var i = 0;\n var l = cues.length;\n this.cues_ = cues;\n this.length_ = cues.length;\n\n var defineProp = function defineProp(index) {\n if (!('' + index in this)) {\n Object.defineProperty(this, '' + index, {\n get: function get() {\n return this.cues_[index];\n }\n });\n }\n };\n\n if (oldLength < l) {\n i = oldLength;\n\n for (; i < l; i++) {\n defineProp.call(this, i);\n }\n }\n }\n /**\n * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.\n *\n * @param {string} id\n * The id of the cue that should be searched for.\n *\n * @return {TextTrackCueList~TextTrackCue|null}\n * A single cue or null if none was found.\n */\n ;\n\n _proto.getCueById = function getCueById(id) {\n var result = null;\n\n for (var i = 0, l = this.length; i < l; i++) {\n var cue = this[i];\n\n if (cue.id === id) {\n result = cue;\n break;\n }\n }\n\n return result;\n };\n\n return TextTrackCueList;\n}();\n\n/**\n * @file track-kinds.js\n */\n\n/**\n * All possible `VideoTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind\n * @typedef VideoTrack~Kind\n * @enum\n */\nvar VideoTrackKind = {\n alternative: 'alternative',\n captions: 'captions',\n main: 'main',\n sign: 'sign',\n subtitles: 'subtitles',\n commentary: 'commentary'\n};\n/**\n * All possible `AudioTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind\n * @typedef AudioTrack~Kind\n * @enum\n */\n\nvar AudioTrackKind = {\n 'alternative': 'alternative',\n 'descriptions': 'descriptions',\n 'main': 'main',\n 'main-desc': 'main-desc',\n 'translation': 'translation',\n 'commentary': 'commentary'\n};\n/**\n * All possible `TextTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind\n * @typedef TextTrack~Kind\n * @enum\n */\n\nvar TextTrackKind = {\n subtitles: 'subtitles',\n captions: 'captions',\n descriptions: 'descriptions',\n chapters: 'chapters',\n metadata: 'metadata'\n};\n/**\n * All possible `TextTrackMode`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode\n * @typedef TextTrack~Mode\n * @enum\n */\n\nvar TextTrackMode = {\n disabled: 'disabled',\n hidden: 'hidden',\n showing: 'showing'\n};\n\n/**\n * A Track class that contains all of the common functionality for {@link AudioTrack},\n * {@link VideoTrack}, and {@link TextTrack}.\n *\n * > Note: This class should not be used directly\n *\n * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}\n * @extends EventTarget\n * @abstract\n */\n\nvar Track = /*#__PURE__*/function (_EventTarget) {\n _inheritsLoose(Track, _EventTarget);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} [options={}]\n * Object of option names and values\n *\n * @param {string} [options.kind='']\n * A valid kind for the track type you are creating.\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this AudioTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @abstract\n */\n function Track(options) {\n var _this;\n\n if (options === void 0) {\n options = {};\n }\n\n _this = _EventTarget.call(this) || this;\n var trackProps = {\n id: options.id || 'vjs_track_' + newGUID(),\n kind: options.kind || '',\n language: options.language || ''\n };\n var label = options.label || '';\n /**\n * @memberof Track\n * @member {string} id\n * The id of this track. Cannot be changed after creation.\n * @instance\n *\n * @readonly\n */\n\n /**\n * @memberof Track\n * @member {string} kind\n * The kind of track that this is. Cannot be changed after creation.\n * @instance\n *\n * @readonly\n */\n\n /**\n * @memberof Track\n * @member {string} language\n * The two letter language code for this track. Cannot be changed after\n * creation.\n * @instance\n *\n * @readonly\n */\n\n var _loop = function _loop(key) {\n Object.defineProperty(_assertThisInitialized(_this), key, {\n get: function get() {\n return trackProps[key];\n },\n set: function set() {}\n });\n };\n\n for (var key in trackProps) {\n _loop(key);\n }\n /**\n * @memberof Track\n * @member {string} label\n * The label of this track. Cannot be changed after creation.\n * @instance\n *\n * @fires Track#labelchange\n */\n\n\n Object.defineProperty(_assertThisInitialized(_this), 'label', {\n get: function get() {\n return label;\n },\n set: function set(newLabel) {\n if (newLabel !== label) {\n label = newLabel;\n /**\n * An event that fires when label changes on this track.\n *\n * > Note: This is not part of the spec!\n *\n * @event Track#labelchange\n * @type {EventTarget~Event}\n */\n\n this.trigger('labelchange');\n }\n }\n });\n return _this;\n }\n\n return Track;\n}(EventTarget$2);\n\n/**\n * @file url.js\n * @module url\n */\n/**\n * @typedef {Object} url:URLObject\n *\n * @property {string} protocol\n * The protocol of the url that was parsed.\n *\n * @property {string} hostname\n * The hostname of the url that was parsed.\n *\n * @property {string} port\n * The port of the url that was parsed.\n *\n * @property {string} pathname\n * The pathname of the url that was parsed.\n *\n * @property {string} search\n * The search query of the url that was parsed.\n *\n * @property {string} hash\n * The hash of the url that was parsed.\n *\n * @property {string} host\n * The host of the url that was parsed.\n */\n\n/**\n * Resolve and parse the elements of a URL.\n *\n * @function\n * @param {String} url\n * The url to parse\n *\n * @return {url:URLObject}\n * An object of url details\n */\n\nvar parseUrl = function parseUrl(url) {\n // This entire method can be replace with URL once we are able to drop IE11\n var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; // add the url to an anchor and let the browser parse the URL\n\n var a = document.createElement('a');\n a.href = url; // Copy the specific URL properties to a new object\n // This is also needed for IE because the anchor loses its\n // properties when it's removed from the dom\n\n var details = {};\n\n for (var i = 0; i < props.length; i++) {\n details[props[i]] = a[props[i]];\n } // IE adds the port to the host property unlike everyone else. If\n // a port identifier is added for standard ports, strip it.\n\n\n if (details.protocol === 'http:') {\n details.host = details.host.replace(/:80$/, '');\n }\n\n if (details.protocol === 'https:') {\n details.host = details.host.replace(/:443$/, '');\n }\n\n if (!details.protocol) {\n details.protocol = window$1.location.protocol;\n }\n /* istanbul ignore if */\n\n\n if (!details.host) {\n details.host = window$1.location.host;\n }\n\n return details;\n};\n/**\n * Get absolute version of relative URL. Used to tell Flash the correct URL.\n *\n * @function\n * @param {string} url\n * URL to make absolute\n *\n * @return {string}\n * Absolute URL\n *\n * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue\n */\n\nvar getAbsoluteURL = function getAbsoluteURL(url) {\n // Check if absolute URL\n if (!url.match(/^https?:\\/\\//)) {\n // Convert to absolute URL. Flash hosted off-site needs an absolute URL.\n // add the url to an anchor and let the browser parse the URL\n var a = document.createElement('a');\n a.href = url;\n url = a.href;\n }\n\n return url;\n};\n/**\n * Returns the extension of the passed file name. It will return an empty string\n * if passed an invalid path.\n *\n * @function\n * @param {string} path\n * The fileName path like '/path/to/file.mp4'\n *\n * @return {string}\n * The extension in lower case or an empty string if no\n * extension could be found.\n */\n\nvar getFileExtension = function getFileExtension(path) {\n if (typeof path === 'string') {\n var splitPathRe = /^(\\/?)([\\s\\S]*?)((?:\\.{1,2}|[^\\/]+?)(\\.([^\\.\\/\\?]+)))(?:[\\/]*|[\\?].*)$/;\n var pathParts = splitPathRe.exec(path);\n\n if (pathParts) {\n return pathParts.pop().toLowerCase();\n }\n }\n\n return '';\n};\n/**\n * Returns whether the url passed is a cross domain request or not.\n *\n * @function\n * @param {string} url\n * The url to check.\n *\n * @param {Object} [winLoc]\n * the domain to check the url against, defaults to window.location\n *\n * @param {string} [winLoc.protocol]\n * The window location protocol defaults to window.location.protocol\n *\n * @param {string} [winLoc.host]\n * The window location host defaults to window.location.host\n *\n * @return {boolean}\n * Whether it is a cross domain request or not.\n */\n\nvar isCrossOrigin = function isCrossOrigin(url, winLoc) {\n if (winLoc === void 0) {\n winLoc = window$1.location;\n }\n\n var urlInfo = parseUrl(url); // IE8 protocol relative urls will return ':' for protocol\n\n var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; // Check if url is for another domain/origin\n // IE8 doesn't know location.origin, so we won't rely on it here\n\n var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;\n return crossOrigin;\n};\n\nvar Url = /*#__PURE__*/Object.freeze({\n __proto__: null,\n parseUrl: parseUrl,\n getAbsoluteURL: getAbsoluteURL,\n getFileExtension: getFileExtension,\n isCrossOrigin: isCrossOrigin\n});\n\n/**\n * Takes a webvtt file contents and parses it into cues\n *\n * @param {string} srcContent\n * webVTT file contents\n *\n * @param {TextTrack} track\n * TextTrack to add cues to. Cues come from the srcContent.\n *\n * @private\n */\n\nvar parseCues = function parseCues(srcContent, track) {\n var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, window$1.WebVTT.StringDecoder());\n var errors = [];\n\n parser.oncue = function (cue) {\n track.addCue(cue);\n };\n\n parser.onparsingerror = function (error) {\n errors.push(error);\n };\n\n parser.onflush = function () {\n track.trigger({\n type: 'loadeddata',\n target: track\n });\n };\n\n parser.parse(srcContent);\n\n if (errors.length > 0) {\n if (window$1.console && window$1.console.groupCollapsed) {\n window$1.console.groupCollapsed(\"Text Track parsing errors for \" + track.src);\n }\n\n errors.forEach(function (error) {\n return log$1.error(error);\n });\n\n if (window$1.console && window$1.console.groupEnd) {\n window$1.console.groupEnd();\n }\n }\n\n parser.flush();\n};\n/**\n * Load a `TextTrack` from a specified url.\n *\n * @param {string} src\n * Url to load track from.\n *\n * @param {TextTrack} track\n * Track to add cues to. Comes from the content at the end of `url`.\n *\n * @private\n */\n\n\nvar loadTrack = function loadTrack(src, track) {\n var opts = {\n uri: src\n };\n var crossOrigin = isCrossOrigin(src);\n\n if (crossOrigin) {\n opts.cors = crossOrigin;\n }\n\n var withCredentials = track.tech_.crossOrigin() === 'use-credentials';\n\n if (withCredentials) {\n opts.withCredentials = withCredentials;\n }\n\n XHR(opts, bind(this, function (err, response, responseBody) {\n if (err) {\n return log$1.error(err, response);\n }\n\n track.loaded_ = true; // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n // NOTE: this is only used for the alt/video.novtt.js build\n\n if (typeof window$1.WebVTT !== 'function') {\n if (track.tech_) {\n // to prevent use before define eslint error, we define loadHandler\n // as a let here\n track.tech_.any(['vttjsloaded', 'vttjserror'], function (event) {\n if (event.type === 'vttjserror') {\n log$1.error(\"vttjs failed to load, stopping trying to process \" + track.src);\n return;\n }\n\n return parseCues(responseBody, track);\n });\n }\n } else {\n parseCues(responseBody, track);\n }\n }));\n};\n/**\n * A representation of a single `TextTrack`.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}\n * @extends Track\n */\n\n\nvar TextTrack = /*#__PURE__*/function (_Track) {\n _inheritsLoose(TextTrack, _Track);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} options={}\n * Object of option names and values\n *\n * @param {Tech} options.tech\n * A reference to the tech that owns this TextTrack.\n *\n * @param {TextTrack~Kind} [options.kind='subtitles']\n * A valid text track kind.\n *\n * @param {TextTrack~Mode} [options.mode='disabled']\n * A valid text track mode.\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this TextTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {string} [options.srclang='']\n * A valid two character language code. An alternative, but deprioritized\n * version of `options.language`\n *\n * @param {string} [options.src]\n * A url to TextTrack cues.\n *\n * @param {boolean} [options.default]\n * If this track should default to on or off.\n */\n function TextTrack(options) {\n var _this;\n\n if (options === void 0) {\n options = {};\n }\n\n if (!options.tech) {\n throw new Error('A tech was not provided.');\n }\n\n var settings = mergeOptions$3(options, {\n kind: TextTrackKind[options.kind] || 'subtitles',\n language: options.language || options.srclang || ''\n });\n var mode = TextTrackMode[settings.mode] || 'disabled';\n var default_ = settings[\"default\"];\n\n if (settings.kind === 'metadata' || settings.kind === 'chapters') {\n mode = 'hidden';\n }\n\n _this = _Track.call(this, settings) || this;\n _this.tech_ = settings.tech;\n _this.cues_ = [];\n _this.activeCues_ = [];\n _this.preload_ = _this.tech_.preloadTextTracks !== false;\n var cues = new TextTrackCueList(_this.cues_);\n var activeCues = new TextTrackCueList(_this.activeCues_);\n var changed = false;\n _this.timeupdateHandler = bind(_assertThisInitialized(_this), function (event) {\n if (event === void 0) {\n event = {};\n }\n\n if (this.tech_.isDisposed()) {\n return;\n }\n\n if (!this.tech_.isReady_) {\n if (event.type !== 'timeupdate') {\n this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n }\n\n return;\n } // Accessing this.activeCues for the side-effects of updating itself\n // due to its nature as a getter function. Do not remove or cues will\n // stop updating!\n // Use the setter to prevent deletion from uglify (pure_getters rule)\n\n\n this.activeCues = this.activeCues;\n\n if (changed) {\n this.trigger('cuechange');\n changed = false;\n }\n\n if (event.type !== 'timeupdate') {\n this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n }\n });\n\n var disposeHandler = function disposeHandler() {\n _this.stopTracking();\n };\n\n _this.tech_.one('dispose', disposeHandler);\n\n if (mode !== 'disabled') {\n _this.startTracking();\n }\n\n Object.defineProperties(_assertThisInitialized(_this), {\n /**\n * @memberof TextTrack\n * @member {boolean} default\n * If this track was set to be on or off by default. Cannot be changed after\n * creation.\n * @instance\n *\n * @readonly\n */\n \"default\": {\n get: function get() {\n return default_;\n },\n set: function set() {}\n },\n\n /**\n * @memberof TextTrack\n * @member {string} mode\n * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will\n * not be set if setting to an invalid mode.\n * @instance\n *\n * @fires TextTrack#modechange\n */\n mode: {\n get: function get() {\n return mode;\n },\n set: function set(newMode) {\n if (!TextTrackMode[newMode]) {\n return;\n }\n\n if (mode === newMode) {\n return;\n }\n\n mode = newMode;\n\n if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {\n // On-demand load.\n loadTrack(this.src, this);\n }\n\n this.stopTracking();\n\n if (mode !== 'disabled') {\n this.startTracking();\n }\n /**\n * An event that fires when mode changes on this track. This allows\n * the TextTrackList that holds this track to act accordingly.\n *\n * > Note: This is not part of the spec!\n *\n * @event TextTrack#modechange\n * @type {EventTarget~Event}\n */\n\n\n this.trigger('modechange');\n }\n },\n\n /**\n * @memberof TextTrack\n * @member {TextTrackCueList} cues\n * The text track cue list for this TextTrack.\n * @instance\n */\n cues: {\n get: function get() {\n if (!this.loaded_) {\n return null;\n }\n\n return cues;\n },\n set: function set() {}\n },\n\n /**\n * @memberof TextTrack\n * @member {TextTrackCueList} activeCues\n * The list text track cues that are currently active for this TextTrack.\n * @instance\n */\n activeCues: {\n get: function get() {\n if (!this.loaded_) {\n return null;\n } // nothing to do\n\n\n if (this.cues.length === 0) {\n return activeCues;\n }\n\n var ct = this.tech_.currentTime();\n var active = [];\n\n for (var i = 0, l = this.cues.length; i < l; i++) {\n var cue = this.cues[i];\n\n if (cue.startTime <= ct && cue.endTime >= ct) {\n active.push(cue);\n } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {\n active.push(cue);\n }\n }\n\n changed = false;\n\n if (active.length !== this.activeCues_.length) {\n changed = true;\n } else {\n for (var _i = 0; _i < active.length; _i++) {\n if (this.activeCues_.indexOf(active[_i]) === -1) {\n changed = true;\n }\n }\n }\n\n this.activeCues_ = active;\n activeCues.setCues_(this.activeCues_);\n return activeCues;\n },\n // /!\\ Keep this setter empty (see the timeupdate handler above)\n set: function set() {}\n }\n });\n\n if (settings.src) {\n _this.src = settings.src;\n\n if (!_this.preload_) {\n // Tracks will load on-demand.\n // Act like we're loaded for other purposes.\n _this.loaded_ = true;\n }\n\n if (_this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {\n loadTrack(_this.src, _assertThisInitialized(_this));\n }\n } else {\n _this.loaded_ = true;\n }\n\n return _this;\n }\n\n var _proto = TextTrack.prototype;\n\n _proto.startTracking = function startTracking() {\n // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback\n this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler); // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el)\n\n this.tech_.on('timeupdate', this.timeupdateHandler);\n };\n\n _proto.stopTracking = function stopTracking() {\n if (this.rvf_) {\n this.tech_.cancelVideoFrameCallback(this.rvf_);\n this.rvf_ = undefined;\n }\n\n this.tech_.off('timeupdate', this.timeupdateHandler);\n }\n /**\n * Add a cue to the internal list of cues.\n *\n * @param {TextTrack~Cue} cue\n * The cue to add to our internal list\n */\n ;\n\n _proto.addCue = function addCue(originalCue) {\n var cue = originalCue;\n\n if (window$1.vttjs && !(originalCue instanceof window$1.vttjs.VTTCue)) {\n cue = new window$1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);\n\n for (var prop in originalCue) {\n if (!(prop in cue)) {\n cue[prop] = originalCue[prop];\n }\n } // make sure that `id` is copied over\n\n\n cue.id = originalCue.id;\n cue.originalCue_ = originalCue;\n }\n\n var tracks = this.tech_.textTracks();\n\n for (var i = 0; i < tracks.length; i++) {\n if (tracks[i] !== this) {\n tracks[i].removeCue(cue);\n }\n }\n\n this.cues_.push(cue);\n this.cues.setCues_(this.cues_);\n }\n /**\n * Remove a cue from our internal list\n *\n * @param {TextTrack~Cue} removeCue\n * The cue to remove from our internal list\n */\n ;\n\n _proto.removeCue = function removeCue(_removeCue) {\n var i = this.cues_.length;\n\n while (i--) {\n var cue = this.cues_[i];\n\n if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {\n this.cues_.splice(i, 1);\n this.cues.setCues_(this.cues_);\n break;\n }\n }\n };\n\n return TextTrack;\n}(Track);\n/**\n * cuechange - One or more cues in the track have become active or stopped being active.\n */\n\n\nTextTrack.prototype.allowedEvents_ = {\n cuechange: 'cuechange'\n};\n\n/**\n * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}\n * only one `AudioTrack` in the list will be enabled at a time.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}\n * @extends Track\n */\n\nvar AudioTrack = /*#__PURE__*/function (_Track) {\n _inheritsLoose(AudioTrack, _Track);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} [options={}]\n * Object of option names and values\n *\n * @param {AudioTrack~Kind} [options.kind='']\n * A valid audio track kind\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this AudioTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {boolean} [options.enabled]\n * If this track is the one that is currently playing. If this track is part of\n * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.\n */\n function AudioTrack(options) {\n var _this;\n\n if (options === void 0) {\n options = {};\n }\n\n var settings = mergeOptions$3(options, {\n kind: AudioTrackKind[options.kind] || ''\n });\n _this = _Track.call(this, settings) || this;\n var enabled = false;\n /**\n * @memberof AudioTrack\n * @member {boolean} enabled\n * If this `AudioTrack` is enabled or not. When setting this will\n * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.\n * @instance\n *\n * @fires VideoTrack#selectedchange\n */\n\n Object.defineProperty(_assertThisInitialized(_this), 'enabled', {\n get: function get() {\n return enabled;\n },\n set: function set(newEnabled) {\n // an invalid or unchanged value\n if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {\n return;\n }\n\n enabled = newEnabled;\n /**\n * An event that fires when enabled changes on this track. This allows\n * the AudioTrackList that holds this track to act accordingly.\n *\n * > Note: This is not part of the spec! Native tracks will do\n * this internally without an event.\n *\n * @event AudioTrack#enabledchange\n * @type {EventTarget~Event}\n */\n\n this.trigger('enabledchange');\n }\n }); // if the user sets this track to selected then\n // set selected to that true value otherwise\n // we keep it false\n\n if (settings.enabled) {\n _this.enabled = settings.enabled;\n }\n\n _this.loaded_ = true;\n return _this;\n }\n\n return AudioTrack;\n}(Track);\n\n/**\n * A representation of a single `VideoTrack`.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}\n * @extends Track\n */\n\nvar VideoTrack = /*#__PURE__*/function (_Track) {\n _inheritsLoose(VideoTrack, _Track);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} [options={}]\n * Object of option names and values\n *\n * @param {string} [options.kind='']\n * A valid {@link VideoTrack~Kind}\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this AudioTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {boolean} [options.selected]\n * If this track is the one that is currently playing.\n */\n function VideoTrack(options) {\n var _this;\n\n if (options === void 0) {\n options = {};\n }\n\n var settings = mergeOptions$3(options, {\n kind: VideoTrackKind[options.kind] || ''\n });\n _this = _Track.call(this, settings) || this;\n var selected = false;\n /**\n * @memberof VideoTrack\n * @member {boolean} selected\n * If this `VideoTrack` is selected or not. When setting this will\n * fire {@link VideoTrack#selectedchange} if the state of selected changed.\n * @instance\n *\n * @fires VideoTrack#selectedchange\n */\n\n Object.defineProperty(_assertThisInitialized(_this), 'selected', {\n get: function get() {\n return selected;\n },\n set: function set(newSelected) {\n // an invalid or unchanged value\n if (typeof newSelected !== 'boolean' || newSelected === selected) {\n return;\n }\n\n selected = newSelected;\n /**\n * An event that fires when selected changes on this track. This allows\n * the VideoTrackList that holds this track to act accordingly.\n *\n * > Note: This is not part of the spec! Native tracks will do\n * this internally without an event.\n *\n * @event VideoTrack#selectedchange\n * @type {EventTarget~Event}\n */\n\n this.trigger('selectedchange');\n }\n }); // if the user sets this track to selected then\n // set selected to that true value otherwise\n // we keep it false\n\n if (settings.selected) {\n _this.selected = settings.selected;\n }\n\n return _this;\n }\n\n return VideoTrack;\n}(Track);\n\n/**\n * @memberof HTMLTrackElement\n * @typedef {HTMLTrackElement~ReadyState}\n * @enum {number}\n */\n\nvar NONE = 0;\nvar LOADING = 1;\nvar LOADED = 2;\nvar ERROR = 3;\n/**\n * A single track represented in the DOM.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}\n * @extends EventTarget\n */\n\nvar HTMLTrackElement = /*#__PURE__*/function (_EventTarget) {\n _inheritsLoose(HTMLTrackElement, _EventTarget);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} options={}\n * Object of option names and values\n *\n * @param {Tech} options.tech\n * A reference to the tech that owns this HTMLTrackElement.\n *\n * @param {TextTrack~Kind} [options.kind='subtitles']\n * A valid text track kind.\n *\n * @param {TextTrack~Mode} [options.mode='disabled']\n * A valid text track mode.\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this TextTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {string} [options.srclang='']\n * A valid two character language code. An alternative, but deprioritized\n * version of `options.language`\n *\n * @param {string} [options.src]\n * A url to TextTrack cues.\n *\n * @param {boolean} [options.default]\n * If this track should default to on or off.\n */\n function HTMLTrackElement(options) {\n var _this;\n\n if (options === void 0) {\n options = {};\n }\n\n _this = _EventTarget.call(this) || this;\n var readyState;\n var track = new TextTrack(options);\n _this.kind = track.kind;\n _this.src = track.src;\n _this.srclang = track.language;\n _this.label = track.label;\n _this[\"default\"] = track[\"default\"];\n Object.defineProperties(_assertThisInitialized(_this), {\n /**\n * @memberof HTMLTrackElement\n * @member {HTMLTrackElement~ReadyState} readyState\n * The current ready state of the track element.\n * @instance\n */\n readyState: {\n get: function get() {\n return readyState;\n }\n },\n\n /**\n * @memberof HTMLTrackElement\n * @member {TextTrack} track\n * The underlying TextTrack object.\n * @instance\n *\n */\n track: {\n get: function get() {\n return track;\n }\n }\n });\n readyState = NONE;\n /**\n * @listens TextTrack#loadeddata\n * @fires HTMLTrackElement#load\n */\n\n track.addEventListener('loadeddata', function () {\n readyState = LOADED;\n\n _this.trigger({\n type: 'load',\n target: _assertThisInitialized(_this)\n });\n });\n return _this;\n }\n\n return HTMLTrackElement;\n}(EventTarget$2);\n\nHTMLTrackElement.prototype.allowedEvents_ = {\n load: 'load'\n};\nHTMLTrackElement.NONE = NONE;\nHTMLTrackElement.LOADING = LOADING;\nHTMLTrackElement.LOADED = LOADED;\nHTMLTrackElement.ERROR = ERROR;\n\n/*\n * This file contains all track properties that are used in\n * player.js, tech.js, html5.js and possibly other techs in the future.\n */\n\nvar NORMAL = {\n audio: {\n ListClass: AudioTrackList,\n TrackClass: AudioTrack,\n capitalName: 'Audio'\n },\n video: {\n ListClass: VideoTrackList,\n TrackClass: VideoTrack,\n capitalName: 'Video'\n },\n text: {\n ListClass: TextTrackList,\n TrackClass: TextTrack,\n capitalName: 'Text'\n }\n};\nObject.keys(NORMAL).forEach(function (type) {\n NORMAL[type].getterName = type + \"Tracks\";\n NORMAL[type].privateName = type + \"Tracks_\";\n});\nvar REMOTE = {\n remoteText: {\n ListClass: TextTrackList,\n TrackClass: TextTrack,\n capitalName: 'RemoteText',\n getterName: 'remoteTextTracks',\n privateName: 'remoteTextTracks_'\n },\n remoteTextEl: {\n ListClass: HtmlTrackElementList,\n TrackClass: HTMLTrackElement,\n capitalName: 'RemoteTextTrackEls',\n getterName: 'remoteTextTrackEls',\n privateName: 'remoteTextTrackEls_'\n }\n};\n\nvar ALL = _extends({}, NORMAL, REMOTE);\n\nREMOTE.names = Object.keys(REMOTE);\nNORMAL.names = Object.keys(NORMAL);\nALL.names = [].concat(REMOTE.names).concat(NORMAL.names);\n\n/**\n * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string\n * that just contains the src url alone.\n * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`\n * `var SourceString = 'http://example.com/some-video.mp4';`\n *\n * @typedef {Object|string} Tech~SourceObject\n *\n * @property {string} src\n * The url to the source\n *\n * @property {string} type\n * The mime type of the source\n */\n\n/**\n * A function used by {@link Tech} to create a new {@link TextTrack}.\n *\n * @private\n *\n * @param {Tech} self\n * An instance of the Tech class.\n *\n * @param {string} kind\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n *\n * @param {string} [label]\n * Label to identify the text track\n *\n * @param {string} [language]\n * Two letter language abbreviation\n *\n * @param {Object} [options={}]\n * An object with additional text track options\n *\n * @return {TextTrack}\n * The text track that was created.\n */\n\nfunction createTrackHelper(self, kind, label, language, options) {\n if (options === void 0) {\n options = {};\n }\n\n var tracks = self.textTracks();\n options.kind = kind;\n\n if (label) {\n options.label = label;\n }\n\n if (language) {\n options.language = language;\n }\n\n options.tech = self;\n var track = new ALL.text.TrackClass(options);\n tracks.addTrack(track);\n return track;\n}\n/**\n * This is the base class for media playback technology controllers, such as\n * {@link HTML5}\n *\n * @extends Component\n */\n\n\nvar Tech = /*#__PURE__*/function (_Component) {\n _inheritsLoose(Tech, _Component);\n\n /**\n * Create an instance of this Tech.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} ready\n * Callback function to call when the `HTML5` Tech is ready.\n */\n function Tech(options, ready) {\n var _this;\n\n if (options === void 0) {\n options = {};\n }\n\n if (ready === void 0) {\n ready = function ready() {};\n }\n\n // we don't want the tech to report user activity automatically.\n // This is done manually in addControlsListeners\n options.reportTouchActivity = false;\n _this = _Component.call(this, null, options, ready) || this;\n\n _this.onDurationChange_ = function (e) {\n return _this.onDurationChange(e);\n };\n\n _this.trackProgress_ = function (e) {\n return _this.trackProgress(e);\n };\n\n _this.trackCurrentTime_ = function (e) {\n return _this.trackCurrentTime(e);\n };\n\n _this.stopTrackingCurrentTime_ = function (e) {\n return _this.stopTrackingCurrentTime(e);\n };\n\n _this.disposeSourceHandler_ = function (e) {\n return _this.disposeSourceHandler(e);\n };\n\n _this.queuedHanders_ = new Set(); // keep track of whether the current source has played at all to\n // implement a very limited played()\n\n _this.hasStarted_ = false;\n\n _this.on('playing', function () {\n this.hasStarted_ = true;\n });\n\n _this.on('loadstart', function () {\n this.hasStarted_ = false;\n });\n\n ALL.names.forEach(function (name) {\n var props = ALL[name];\n\n if (options && options[props.getterName]) {\n _this[props.privateName] = options[props.getterName];\n }\n }); // Manually track progress in cases where the browser/tech doesn't report it.\n\n if (!_this.featuresProgressEvents) {\n _this.manualProgressOn();\n } // Manually track timeupdates in cases where the browser/tech doesn't report it.\n\n\n if (!_this.featuresTimeupdateEvents) {\n _this.manualTimeUpdatesOn();\n }\n\n ['Text', 'Audio', 'Video'].forEach(function (track) {\n if (options[\"native\" + track + \"Tracks\"] === false) {\n _this[\"featuresNative\" + track + \"Tracks\"] = false;\n }\n });\n\n if (options.nativeCaptions === false || options.nativeTextTracks === false) {\n _this.featuresNativeTextTracks = false;\n } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {\n _this.featuresNativeTextTracks = true;\n }\n\n if (!_this.featuresNativeTextTracks) {\n _this.emulateTextTracks();\n }\n\n _this.preloadTextTracks = options.preloadTextTracks !== false;\n _this.autoRemoteTextTracks_ = new ALL.text.ListClass();\n\n _this.initTrackListeners(); // Turn on component tap events only if not using native controls\n\n\n if (!options.nativeControlsForTouch) {\n _this.emitTapEvents();\n }\n\n if (_this.constructor) {\n _this.name_ = _this.constructor.name || 'Unknown Tech';\n }\n\n return _this;\n }\n /**\n * A special function to trigger source set in a way that will allow player\n * to re-trigger if the player or tech are not ready yet.\n *\n * @fires Tech#sourceset\n * @param {string} src The source string at the time of the source changing.\n */\n\n\n var _proto = Tech.prototype;\n\n _proto.triggerSourceset = function triggerSourceset(src) {\n var _this2 = this;\n\n if (!this.isReady_) {\n // on initial ready we have to trigger source set\n // 1ms after ready so that player can watch for it.\n this.one('ready', function () {\n return _this2.setTimeout(function () {\n return _this2.triggerSourceset(src);\n }, 1);\n });\n }\n /**\n * Fired when the source is set on the tech causing the media element\n * to reload.\n *\n * @see {@link Player#event:sourceset}\n * @event Tech#sourceset\n * @type {EventTarget~Event}\n */\n\n\n this.trigger({\n src: src,\n type: 'sourceset'\n });\n }\n /* Fallbacks for unsupported event types\n ================================================================================ */\n\n /**\n * Polyfill the `progress` event for browsers that don't support it natively.\n *\n * @see {@link Tech#trackProgress}\n */\n ;\n\n _proto.manualProgressOn = function manualProgressOn() {\n this.on('durationchange', this.onDurationChange_);\n this.manualProgress = true; // Trigger progress watching when a source begins loading\n\n this.one('ready', this.trackProgress_);\n }\n /**\n * Turn off the polyfill for `progress` events that was created in\n * {@link Tech#manualProgressOn}\n */\n ;\n\n _proto.manualProgressOff = function manualProgressOff() {\n this.manualProgress = false;\n this.stopTrackingProgress();\n this.off('durationchange', this.onDurationChange_);\n }\n /**\n * This is used to trigger a `progress` event when the buffered percent changes. It\n * sets an interval function that will be called every 500 milliseconds to check if the\n * buffer end percent has changed.\n *\n * > This function is called by {@link Tech#manualProgressOn}\n *\n * @param {EventTarget~Event} event\n * The `ready` event that caused this to run.\n *\n * @listens Tech#ready\n * @fires Tech#progress\n */\n ;\n\n _proto.trackProgress = function trackProgress(event) {\n this.stopTrackingProgress();\n this.progressInterval = this.setInterval(bind(this, function () {\n // Don't trigger unless buffered amount is greater than last time\n var numBufferedPercent = this.bufferedPercent();\n\n if (this.bufferedPercent_ !== numBufferedPercent) {\n /**\n * See {@link Player#progress}\n *\n * @event Tech#progress\n * @type {EventTarget~Event}\n */\n this.trigger('progress');\n }\n\n this.bufferedPercent_ = numBufferedPercent;\n\n if (numBufferedPercent === 1) {\n this.stopTrackingProgress();\n }\n }), 500);\n }\n /**\n * Update our internal duration on a `durationchange` event by calling\n * {@link Tech#duration}.\n *\n * @param {EventTarget~Event} event\n * The `durationchange` event that caused this to run.\n *\n * @listens Tech#durationchange\n */\n ;\n\n _proto.onDurationChange = function onDurationChange(event) {\n this.duration_ = this.duration();\n }\n /**\n * Get and create a `TimeRange` object for buffering.\n *\n * @return {TimeRange}\n * The time range object that was created.\n */\n ;\n\n _proto.buffered = function buffered() {\n return createTimeRanges(0, 0);\n }\n /**\n * Get the percentage of the current video that is currently buffered.\n *\n * @return {number}\n * A number from 0 to 1 that represents the decimal percentage of the\n * video that is buffered.\n *\n */\n ;\n\n _proto.bufferedPercent = function bufferedPercent$1() {\n return bufferedPercent(this.buffered(), this.duration_);\n }\n /**\n * Turn off the polyfill for `progress` events that was created in\n * {@link Tech#manualProgressOn}\n * Stop manually tracking progress events by clearing the interval that was set in\n * {@link Tech#trackProgress}.\n */\n ;\n\n _proto.stopTrackingProgress = function stopTrackingProgress() {\n this.clearInterval(this.progressInterval);\n }\n /**\n * Polyfill the `timeupdate` event for browsers that don't support it.\n *\n * @see {@link Tech#trackCurrentTime}\n */\n ;\n\n _proto.manualTimeUpdatesOn = function manualTimeUpdatesOn() {\n this.manualTimeUpdates = true;\n this.on('play', this.trackCurrentTime_);\n this.on('pause', this.stopTrackingCurrentTime_);\n }\n /**\n * Turn off the polyfill for `timeupdate` events that was created in\n * {@link Tech#manualTimeUpdatesOn}\n */\n ;\n\n _proto.manualTimeUpdatesOff = function manualTimeUpdatesOff() {\n this.manualTimeUpdates = false;\n this.stopTrackingCurrentTime();\n this.off('play', this.trackCurrentTime_);\n this.off('pause', this.stopTrackingCurrentTime_);\n }\n /**\n * Sets up an interval function to track current time and trigger `timeupdate` every\n * 250 milliseconds.\n *\n * @listens Tech#play\n * @triggers Tech#timeupdate\n */\n ;\n\n _proto.trackCurrentTime = function trackCurrentTime() {\n if (this.currentTimeInterval) {\n this.stopTrackingCurrentTime();\n }\n\n this.currentTimeInterval = this.setInterval(function () {\n /**\n * Triggered at an interval of 250ms to indicated that time is passing in the video.\n *\n * @event Tech#timeupdate\n * @type {EventTarget~Event}\n */\n this.trigger({\n type: 'timeupdate',\n target: this,\n manuallyTriggered: true\n }); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n }, 250);\n }\n /**\n * Stop the interval function created in {@link Tech#trackCurrentTime} so that the\n * `timeupdate` event is no longer triggered.\n *\n * @listens {Tech#pause}\n */\n ;\n\n _proto.stopTrackingCurrentTime = function stopTrackingCurrentTime() {\n this.clearInterval(this.currentTimeInterval); // #1002 - if the video ends right before the next timeupdate would happen,\n // the progress bar won't make it all the way to the end\n\n this.trigger({\n type: 'timeupdate',\n target: this,\n manuallyTriggered: true\n });\n }\n /**\n * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},\n * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.\n *\n * @fires Component#dispose\n */\n ;\n\n _proto.dispose = function dispose() {\n // clear out all tracks because we can't reuse them between techs\n this.clearTracks(NORMAL.names); // Turn off any manual progress or timeupdate tracking\n\n if (this.manualProgress) {\n this.manualProgressOff();\n }\n\n if (this.manualTimeUpdates) {\n this.manualTimeUpdatesOff();\n }\n\n _Component.prototype.dispose.call(this);\n }\n /**\n * Clear out a single `TrackList` or an array of `TrackLists` given their names.\n *\n * > Note: Techs without source handlers should call this between sources for `video`\n * & `audio` tracks. You don't want to use them between tracks!\n *\n * @param {string[]|string} types\n * TrackList names to clear, valid names are `video`, `audio`, and\n * `text`.\n */\n ;\n\n _proto.clearTracks = function clearTracks(types) {\n var _this3 = this;\n\n types = [].concat(types); // clear out all tracks because we can't reuse them between techs\n\n types.forEach(function (type) {\n var list = _this3[type + \"Tracks\"]() || [];\n var i = list.length;\n\n while (i--) {\n var track = list[i];\n\n if (type === 'text') {\n _this3.removeRemoteTextTrack(track);\n }\n\n list.removeTrack(track);\n }\n });\n }\n /**\n * Remove any TextTracks added via addRemoteTextTrack that are\n * flagged for automatic garbage collection\n */\n ;\n\n _proto.cleanupAutoTextTracks = function cleanupAutoTextTracks() {\n var list = this.autoRemoteTextTracks_ || [];\n var i = list.length;\n\n while (i--) {\n var track = list[i];\n this.removeRemoteTextTrack(track);\n }\n }\n /**\n * Reset the tech, which will removes all sources and reset the internal readyState.\n *\n * @abstract\n */\n ;\n\n _proto.reset = function reset() {}\n /**\n * Get the value of `crossOrigin` from the tech.\n *\n * @abstract\n *\n * @see {Html5#crossOrigin}\n */\n ;\n\n _proto.crossOrigin = function crossOrigin() {}\n /**\n * Set the value of `crossOrigin` on the tech.\n *\n * @abstract\n *\n * @param {string} crossOrigin the crossOrigin value\n * @see {Html5#setCrossOrigin}\n */\n ;\n\n _proto.setCrossOrigin = function setCrossOrigin() {}\n /**\n * Get or set an error on the Tech.\n *\n * @param {MediaError} [err]\n * Error to set on the Tech\n *\n * @return {MediaError|null}\n * The current error object on the tech, or null if there isn't one.\n */\n ;\n\n _proto.error = function error(err) {\n if (err !== undefined) {\n this.error_ = new MediaError(err);\n this.trigger('error');\n }\n\n return this.error_;\n }\n /**\n * Returns the `TimeRange`s that have been played through for the current source.\n *\n * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.\n * It only checks whether the source has played at all or not.\n *\n * @return {TimeRange}\n * - A single time range if this video has played\n * - An empty set of ranges if not.\n */\n ;\n\n _proto.played = function played() {\n if (this.hasStarted_) {\n return createTimeRanges(0, 0);\n }\n\n return createTimeRanges();\n }\n /**\n * Start playback\n *\n * @abstract\n *\n * @see {Html5#play}\n */\n ;\n\n _proto.play = function play() {}\n /**\n * Set whether we are scrubbing or not\n *\n * @abstract\n *\n * @see {Html5#setScrubbing}\n */\n ;\n\n _proto.setScrubbing = function setScrubbing() {}\n /**\n * Get whether we are scrubbing or not\n *\n * @abstract\n *\n * @see {Html5#scrubbing}\n */\n ;\n\n _proto.scrubbing = function scrubbing() {}\n /**\n * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was\n * previously called.\n *\n * @fires Tech#timeupdate\n */\n ;\n\n _proto.setCurrentTime = function setCurrentTime() {\n // improve the accuracy of manual timeupdates\n if (this.manualTimeUpdates) {\n /**\n * A manual `timeupdate` event.\n *\n * @event Tech#timeupdate\n * @type {EventTarget~Event}\n */\n this.trigger({\n type: 'timeupdate',\n target: this,\n manuallyTriggered: true\n });\n }\n }\n /**\n * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and\n * {@link TextTrackList} events.\n *\n * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.\n *\n * @fires Tech#audiotrackchange\n * @fires Tech#videotrackchange\n * @fires Tech#texttrackchange\n */\n ;\n\n _proto.initTrackListeners = function initTrackListeners() {\n var _this4 = this;\n\n /**\n * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}\n *\n * @event Tech#audiotrackchange\n * @type {EventTarget~Event}\n */\n\n /**\n * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}\n *\n * @event Tech#videotrackchange\n * @type {EventTarget~Event}\n */\n\n /**\n * Triggered when tracks are added or removed on the Tech {@link TextTrackList}\n *\n * @event Tech#texttrackchange\n * @type {EventTarget~Event}\n */\n NORMAL.names.forEach(function (name) {\n var props = NORMAL[name];\n\n var trackListChanges = function trackListChanges() {\n _this4.trigger(name + \"trackchange\");\n };\n\n var tracks = _this4[props.getterName]();\n\n tracks.addEventListener('removetrack', trackListChanges);\n tracks.addEventListener('addtrack', trackListChanges);\n\n _this4.on('dispose', function () {\n tracks.removeEventListener('removetrack', trackListChanges);\n tracks.removeEventListener('addtrack', trackListChanges);\n });\n });\n }\n /**\n * Emulate TextTracks using vtt.js if necessary\n *\n * @fires Tech#vttjsloaded\n * @fires Tech#vttjserror\n */\n ;\n\n _proto.addWebVttScript_ = function addWebVttScript_() {\n var _this5 = this;\n\n if (window$1.WebVTT) {\n return;\n } // Initially, Tech.el_ is a child of a dummy-div wait until the Component system\n // signals that the Tech is ready at which point Tech.el_ is part of the DOM\n // before inserting the WebVTT script\n\n\n if (document.body.contains(this.el())) {\n // load via require if available and vtt.js script location was not passed in\n // as an option. novtt builds will turn the above require call into an empty object\n // which will cause this if check to always fail.\n if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {\n this.trigger('vttjsloaded');\n return;\n } // load vtt.js via the script location option or the cdn of no location was\n // passed in\n\n\n var script = document.createElement('script');\n script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';\n\n script.onload = function () {\n /**\n * Fired when vtt.js is loaded.\n *\n * @event Tech#vttjsloaded\n * @type {EventTarget~Event}\n */\n _this5.trigger('vttjsloaded');\n };\n\n script.onerror = function () {\n /**\n * Fired when vtt.js was not loaded due to an error\n *\n * @event Tech#vttjsloaded\n * @type {EventTarget~Event}\n */\n _this5.trigger('vttjserror');\n };\n\n this.on('dispose', function () {\n script.onload = null;\n script.onerror = null;\n }); // but have not loaded yet and we set it to true before the inject so that\n // we don't overwrite the injected window.WebVTT if it loads right away\n\n window$1.WebVTT = true;\n this.el().parentNode.appendChild(script);\n } else {\n this.ready(this.addWebVttScript_);\n }\n }\n /**\n * Emulate texttracks\n *\n */\n ;\n\n _proto.emulateTextTracks = function emulateTextTracks() {\n var _this6 = this;\n\n var tracks = this.textTracks();\n var remoteTracks = this.remoteTextTracks();\n\n var handleAddTrack = function handleAddTrack(e) {\n return tracks.addTrack(e.track);\n };\n\n var handleRemoveTrack = function handleRemoveTrack(e) {\n return tracks.removeTrack(e.track);\n };\n\n remoteTracks.on('addtrack', handleAddTrack);\n remoteTracks.on('removetrack', handleRemoveTrack);\n this.addWebVttScript_();\n\n var updateDisplay = function updateDisplay() {\n return _this6.trigger('texttrackchange');\n };\n\n var textTracksChanges = function textTracksChanges() {\n updateDisplay();\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n track.removeEventListener('cuechange', updateDisplay);\n\n if (track.mode === 'showing') {\n track.addEventListener('cuechange', updateDisplay);\n }\n }\n };\n\n textTracksChanges();\n tracks.addEventListener('change', textTracksChanges);\n tracks.addEventListener('addtrack', textTracksChanges);\n tracks.addEventListener('removetrack', textTracksChanges);\n this.on('dispose', function () {\n remoteTracks.off('addtrack', handleAddTrack);\n remoteTracks.off('removetrack', handleRemoveTrack);\n tracks.removeEventListener('change', textTracksChanges);\n tracks.removeEventListener('addtrack', textTracksChanges);\n tracks.removeEventListener('removetrack', textTracksChanges);\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n track.removeEventListener('cuechange', updateDisplay);\n }\n });\n }\n /**\n * Create and returns a remote {@link TextTrack} object.\n *\n * @param {string} kind\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n *\n * @param {string} [label]\n * Label to identify the text track\n *\n * @param {string} [language]\n * Two letter language abbreviation\n *\n * @return {TextTrack}\n * The TextTrack that gets created.\n */\n ;\n\n _proto.addTextTrack = function addTextTrack(kind, label, language) {\n if (!kind) {\n throw new Error('TextTrack kind is required but was not provided');\n }\n\n return createTrackHelper(this, kind, label, language);\n }\n /**\n * Create an emulated TextTrack for use by addRemoteTextTrack\n *\n * This is intended to be overridden by classes that inherit from\n * Tech in order to create native or custom TextTracks.\n *\n * @param {Object} options\n * The object should contain the options to initialize the TextTrack with.\n *\n * @param {string} [options.kind]\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n *\n * @param {string} [options.label].\n * Label to identify the text track\n *\n * @param {string} [options.language]\n * Two letter language abbreviation.\n *\n * @return {HTMLTrackElement}\n * The track element that gets created.\n */\n ;\n\n _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {\n var track = mergeOptions$3(options, {\n tech: this\n });\n return new REMOTE.remoteTextEl.TrackClass(track);\n }\n /**\n * Creates a remote text track object and returns an html track element.\n *\n * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.\n *\n * @param {Object} options\n * See {@link Tech#createRemoteTextTrack} for more detailed properties.\n *\n * @param {boolean} [manualCleanup=true]\n * - When false: the TextTrack will be automatically removed from the video\n * element whenever the source changes\n * - When True: The TextTrack will have to be cleaned up manually\n *\n * @return {HTMLTrackElement}\n * An Html Track Element.\n *\n * @deprecated The default functionality for this function will be equivalent\n * to \"manualCleanup=false\" in the future. The manualCleanup parameter will\n * also be removed.\n */\n ;\n\n _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n var _this7 = this;\n\n if (options === void 0) {\n options = {};\n }\n\n var htmlTrackElement = this.createRemoteTextTrack(options);\n\n if (manualCleanup !== true && manualCleanup !== false) {\n // deprecation warning\n log$1.warn('Calling addRemoteTextTrack without explicitly setting the \"manualCleanup\" parameter to `true` is deprecated and default to `false` in future version of video.js');\n manualCleanup = true;\n } // store HTMLTrackElement and TextTrack to remote list\n\n\n this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);\n this.remoteTextTracks().addTrack(htmlTrackElement.track);\n\n if (manualCleanup !== true) {\n // create the TextTrackList if it doesn't exist\n this.ready(function () {\n return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);\n });\n }\n\n return htmlTrackElement;\n }\n /**\n * Remove a remote text track from the remote `TextTrackList`.\n *\n * @param {TextTrack} track\n * `TextTrack` to remove from the `TextTrackList`\n */\n ;\n\n _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); // remove HTMLTrackElement and TextTrack from remote list\n\n this.remoteTextTrackEls().removeTrackElement_(trackElement);\n this.remoteTextTracks().removeTrack(track);\n this.autoRemoteTextTracks_.removeTrack(track);\n }\n /**\n * Gets available media playback quality metrics as specified by the W3C's Media\n * Playback Quality API.\n *\n * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n *\n * @return {Object}\n * An object with supported media playback quality metrics\n *\n * @abstract\n */\n ;\n\n _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n return {};\n }\n /**\n * Attempt to create a floating video window always on top of other windows\n * so that users may continue consuming media while they interact with other\n * content sites, or applications on their device.\n *\n * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n *\n * @return {Promise|undefined}\n * A promise with a Picture-in-Picture window if the browser supports\n * Promises (or one was passed in as an option). It returns undefined\n * otherwise.\n *\n * @abstract\n */\n ;\n\n _proto.requestPictureInPicture = function requestPictureInPicture() {\n var PromiseClass = this.options_.Promise || window$1.Promise;\n\n if (PromiseClass) {\n return PromiseClass.reject();\n }\n }\n /**\n * A method to check for the value of the 'disablePictureInPicture'