--- /dev/null
+'use strict';
+
+exports.__esModule = true;
+
+var _textTrackCueList = require('./text-track-cue-list');
+
+var _textTrackCueList2 = _interopRequireDefault(_textTrackCueList);
+
+var _fn = require('../utils/fn.js');
+
+var Fn = _interopRequireWildcard(_fn);
+
+var _trackEnums = require('./track-enums');
+
+var _log = require('../utils/log.js');
+
+var _log2 = _interopRequireDefault(_log);
+
+var _window = require('global/window');
+
+var _window2 = _interopRequireDefault(_window);
+
+var _track = require('./track.js');
+
+var _track2 = _interopRequireDefault(_track);
+
+var _url = require('../utils/url.js');
+
+var _xhr = require('xhr');
+
+var _xhr2 = _interopRequireDefault(_xhr);
+
+var _mergeOptions = require('../utils/merge-options');
+
+var _mergeOptions2 = _interopRequireDefault(_mergeOptions);
+
+var _browser = require('../utils/browser.js');
+
+var browser = _interopRequireWildcard(_browser);
+
+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 text-track.js
+ */
+
+
+/**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+var parseCues = function parseCues(srcContent, track) {
+ var parser = new _window2['default'].WebVTT.Parser(_window2['default'], _window2['default'].vttjs, _window2['default'].WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (_window2['default'].console && _window2['default'].console.groupCollapsed) {
+ _window2['default'].console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return _log2['default'].error(error);
+ });
+ if (_window2['default'].console && _window2['default'].console.groupEnd) {
+ _window2['default'].console.groupEnd();
+ }
+ }
+
+ parser.flush();
+};
+
+/**
+ * Load a `TextTrack` from a specifed url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = (0, _url.isCrossOrigin)(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ (0, _xhr2['default'])(opts, Fn.bind(this, function (err, response, responseBody) {
+ if (err) {
+ return _log2['default'].error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof _window2['default'].WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ _log2['default'].error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+};
+
+/**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+var TextTrack = function (_Track) {
+ _inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var _this, _ret;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ _classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = (0, _mergeOptions2['default'])(options, {
+ kind: _trackEnums.TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = _trackEnums.TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings['default'];
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+ // on IE8 this will be a document element
+ // for every other browser this will be a normal object
+ var tt = (_this = _possibleConstructorReturn(this, _Track.call(this, settings)), _this);
+
+ tt.tech_ = settings.tech;
+
+ if (browser.IS_IE8) {
+ for (var prop in TextTrack.prototype) {
+ if (prop !== 'constructor') {
+ tt[prop] = TextTrack.prototype[prop];
+ }
+ }
+ }
+
+ tt.cues_ = [];
+ tt.activeCues_ = [];
+
+ var cues = new _textTrackCueList2['default'](tt.cues_);
+ var activeCues = new _textTrackCueList2['default'](tt.activeCues_);
+ var changed = false;
+ var timeupdateHandler = Fn.bind(tt, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ /* eslint-disable no-unused-expressions */
+ this.activeCues;
+ /* eslint-enable no-unused-expressions */
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ tt.tech_.ready(function () {
+ tt.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ /**
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ *
+ * @readonly
+ */
+ Object.defineProperty(tt, 'default', {
+ get: function get() {
+ return default_;
+ },
+ set: function set() {}
+ });
+
+ /**
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ *
+ * @fires TextTrack#modechange
+ */
+ Object.defineProperty(tt, 'mode', {
+ get: function get() {
+ return mode;
+ },
+ set: function set(newMode) {
+ var _this2 = this;
+
+ if (!_trackEnums.TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode === 'showing') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ });
+
+ /**
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ */
+ Object.defineProperty(tt, 'cues', {
+ get: function get() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set() {}
+ });
+
+ /**
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ */
+ Object.defineProperty(tt, 'activeCues', {
+ get: function get() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+ set: function set() {}
+ });
+
+ if (settings.src) {
+ tt.src = settings.src;
+ loadTrack(settings.src, tt);
+ } else {
+ tt.loaded_ = true;
+ }
+
+ return _ret = tt, _possibleConstructorReturn(_this, _ret);
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (_window2['default'].vttjs && !(originalCue instanceof _window2['default'].vttjs.VTTCue)) {
+ cue = new _window2['default'].vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ if (tracks) {
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+}(_track2['default']);
+
+/**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+};
+
+exports['default'] = TextTrack;
projects / yaffs-website / blobdiff