--- /dev/null
+'use strict';
+
+exports.__esModule = true;
+
+var _component = require('../component');
+
+var _component2 = _interopRequireDefault(_component);
+
+var _htmlTrackElement = require('../tracks/html-track-element');
+
+var _htmlTrackElement2 = _interopRequireDefault(_htmlTrackElement);
+
+var _htmlTrackElementList = require('../tracks/html-track-element-list');
+
+var _htmlTrackElementList2 = _interopRequireDefault(_htmlTrackElementList);
+
+var _mergeOptions = require('../utils/merge-options.js');
+
+var _mergeOptions2 = _interopRequireDefault(_mergeOptions);
+
+var _textTrack = require('../tracks/text-track');
+
+var _textTrack2 = _interopRequireDefault(_textTrack);
+
+var _textTrackList = require('../tracks/text-track-list');
+
+var _textTrackList2 = _interopRequireDefault(_textTrackList);
+
+var _videoTrackList = require('../tracks/video-track-list');
+
+var _videoTrackList2 = _interopRequireDefault(_videoTrackList);
+
+var _audioTrackList = require('../tracks/audio-track-list');
+
+var _audioTrackList2 = _interopRequireDefault(_audioTrackList);
+
+var _fn = require('../utils/fn.js');
+
+var Fn = _interopRequireWildcard(_fn);
+
+var _log = require('../utils/log.js');
+
+var _log2 = _interopRequireDefault(_log);
+
+var _timeRanges = require('../utils/time-ranges.js');
+
+var _buffer = require('../utils/buffer.js');
+
+var _mediaError = require('../media-error.js');
+
+var _mediaError2 = _interopRequireDefault(_mediaError);
+
+var _window = require('global/window');
+
+var _window2 = _interopRequireDefault(_window);
+
+var _document = require('global/document');
+
+var _document2 = _interopRequireDefault(_document);
+
+var _obj = require('../utils/obj');
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj['default'] = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
+ * @file tech.js
+ */
+
+/**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+/**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new _textTrack2['default'](options);
+
+ tracks.addTrack_(track);
+
+ return track;
+}
+
+/**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+var Tech = function (_Component) {
+ _inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+
+ _classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = _possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ _this.textTracks_ = options.textTracks;
+ _this.videoTracks_ = options.videoTracks;
+ _this.audioTracks_ = options.audioTracks;
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false) {
+ _this.featuresNativeTextTracks = false;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new _textTrackList2['default']();
+
+ _this.initTextTrackListeners();
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(Fn.bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return (0, _timeRanges.createTimeRange)(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent() {
+ return (0, _buffer.bufferedPercent)(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(['audio', 'video', 'text']);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this2 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this2[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this2.removeRemoteTextTrack(track);
+ }
+ list.removeTrack_(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new _mediaError2['default'](err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks wether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return (0, _timeRanges.createTimeRange)(0, 0);
+ }
+ return (0, _timeRanges.createTimeRange)();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link TextTrackList} events. This adds
+ * {@link EventTarget~EventListeners} for `texttrackchange`, `addtrack` and
+ * `removetrack`.
+ *
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTextTrackListeners = function initTextTrackListeners() {
+ var textTrackListChanges = Fn.bind(this, function () {
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('texttrackchange');
+ });
+
+ var tracks = this.textTracks();
+
+ if (!tracks) {
+ return;
+ }
+
+ tracks.addEventListener('removetrack', textTrackListChanges);
+ tracks.addEventListener('addtrack', textTrackListChanges);
+
+ this.on('dispose', Fn.bind(this, function () {
+ tracks.removeEventListener('removetrack', textTrackListChanges);
+ tracks.removeEventListener('addtrack', textTrackListChanges);
+ }));
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList} and {@link {AudioTrackList} events.
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this3 = this;
+
+ var trackTypes = ['video', 'audio'];
+
+ trackTypes.forEach(function (type) {
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+ var trackListChanges = function trackListChanges() {
+ _this3.trigger(type + 'trackchange');
+ };
+
+ var tracks = _this3[type + 'Tracks']();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this3.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this4 = this;
+
+ if (_window2['default'].WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (_document2['default'].body.contains(this.el())) {
+ var vtt = require('videojs-vtt.js');
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && (0, _obj.isPlain)(vtt) && Object.keys(vtt).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = _document2['default'].createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.12.3/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this4.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this4.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ _window2['default'].WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ * @method emulateTextTracks
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this5 = this;
+
+ var tracks = this.textTracks();
+
+ if (!tracks) {
+ return;
+ }
+
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack_(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack_(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this5.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Get the `Tech`s {@link VideoTrackList}.
+ *
+ * @return {VideoTrackList}
+ * The video track list that the Tech is currently using.
+ */
+
+
+ Tech.prototype.videoTracks = function videoTracks() {
+ this.videoTracks_ = this.videoTracks_ || new _videoTrackList2['default']();
+ return this.videoTracks_;
+ };
+
+ /**
+ * Get the `Tech`s {@link AudioTrackList}.
+ *
+ * @return {AudioTrackList}
+ * The audio track list that the Tech is currently using.
+ */
+
+
+ Tech.prototype.audioTracks = function audioTracks() {
+ this.audioTracks_ = this.audioTracks_ || new _audioTrackList2['default']();
+ return this.audioTracks_;
+ };
+
+ /**
+ * Get the `Tech`s {@link TextTrackList}.
+ *
+ * @return {TextTrackList}
+ * The text track list that the Tech is currently using.
+ */
+
+
+ Tech.prototype.textTracks = function textTracks() {
+ this.textTracks_ = this.textTracks_ || new _textTrackList2['default']();
+ return this.textTracks_;
+ };
+
+ /**
+ * Get the `Tech`s remote {@link TextTrackList}, which is created from elements
+ * that were added to the DOM.
+ *
+ * @return {TextTrackList}
+ * The remote text track list that the Tech is currently using.
+ */
+
+
+ Tech.prototype.remoteTextTracks = function remoteTextTracks() {
+ this.remoteTextTracks_ = this.remoteTextTracks_ || new _textTrackList2['default']();
+ return this.remoteTextTracks_;
+ };
+
+ /**
+ * Get The `Tech`s {HTMLTrackElementList}, which are the elements in the DOM that are
+ * being used as TextTracks.
+ *
+ * @return {HTMLTrackElementList}
+ * The current HTML track elements that exist for the tech.
+ */
+
+
+ Tech.prototype.remoteTextTrackEls = function remoteTextTrackEls() {
+ this.remoteTextTrackEls_ = this.remoteTextTrackEls_ || new _htmlTrackElementList2['default']();
+ return this.remoteTextTrackEls_;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = (0, _mergeOptions2['default'])(options, {
+ tech: this
+ });
+
+ return new _htmlTrackElement2['default'](track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ _log2['default'].warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack_(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.autoRemoteTextTracks_.addTrack_(htmlTrackElement.track);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack_(track);
+ this.autoRemoteTextTracks_.removeTrack_(track);
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ Tech.techs_[name] = tech;
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * Name of the component to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requsted.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (_window2['default'] && _window2['default'].videojs && _window2['default'].videojs[name]) {
+ _log2['default'].warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return _window2['default'].videojs[name];
+ }
+ };
+
+ return Tech;
+}(_component2['default']);
+
+/**
+ * List of associated text tracks.
+ *
+ * @type {TextTrackList}
+ * @private
+ */
+
+
+Tech.prototype.textTracks_; // eslint-disable-line
+
+/**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ */
+Tech.prototype.audioTracks_; // eslint-disable-line
+
+/**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ */
+Tech.prototype.videoTracks_; // eslint-disable-line
+
+/**
+ * Boolean indicating wether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresVolumeControl = true;
+
+/**
+ * Boolean indicating wether the `Tech` support fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresFullscreenResize = false;
+
+/**
+ * Boolean indicating wether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresPlaybackRate = false;
+
+/**
+ * Boolean indicating wether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresProgressEvents = false;
+
+/**
+ * Boolean indicating wether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresTimeupdateEvents = false;
+
+/**
+ * Boolean indicating wether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresNativeTextTracks = false;
+
+/**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ *
+ * @return {Tech}
+ * Returns itself; this method is chainable
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ _log2['default'].error('No source hander found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+
+ // Catch if someone replaced the src without calling setSource.
+ // If they do, set currentSource_ to null and dispose our source handler.
+ this.off(this.el_, 'loadstart', _Tech.prototype.firstLoadStartListener_);
+ this.off(this.el_, 'loadstart', _Tech.prototype.successiveLoadStartListener_);
+ this.one(this.el_, 'loadstart', _Tech.prototype.firstLoadStartListener_);
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+
+ return this;
+ };
+
+ /**
+ * Called once for the first loadstart of a video.
+ *
+ * @listens Tech#loadstart
+ */
+ _Tech.prototype.firstLoadStartListener_ = function () {
+ this.one(this.el_, 'loadstart', _Tech.prototype.successiveLoadStartListener_);
+ };
+
+ // On successive loadstarts when setSource has not been called again
+ /**
+ * Called after the first loadstart for a video occurs.
+ *
+ * @listens Tech#loadstart
+ */
+ _Tech.prototype.successiveLoadStartListener_ = function () {
+ this.disposeSourceHandler();
+ this.one(this.el_, 'loadstart', _Tech.prototype.successiveLoadStartListener_);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+ this.off(this.el_, 'loadstart', _Tech.prototype.firstLoadStartListener_);
+ this.off(this.el_, 'loadstart', _Tech.prototype.successiveLoadStartListener_);
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+};
+
+_component2['default'].registerComponent('Tech', Tech);
+// Old name for Tech
+// @deprecated
+_component2['default'].registerComponent('MediaTechController', Tech);
+Tech.registerTech('Tech', Tech);
+exports['default'] = Tech;
projects / yaffs-website / blobdiff