aleph1.co.uk Git - yaffs-website/blob - node_modules/video.js/es5/tracks/text-track-list.js

   1 'use strict';
   2
   3 exports.__esModule = true;
   4
   5 var _trackList = require('./track-list');
   6
   7 var _trackList2 = _interopRequireDefault(_trackList);
   8
   9 var _fn = require('../utils/fn.js');
  10
  11 var Fn = _interopRequireWildcard(_fn);
  12
  13 var _browser = require('../utils/browser.js');
  14
  15 var browser = _interopRequireWildcard(_browser);
  16
  17 var _document = require('global/document');
  18
  19 var _document2 = _interopRequireDefault(_document);
  20
  21 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; } }
  22
  23 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
  24
  25 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  26
  27 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; }
  28
  29 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; } /**
  30                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 * @file text-track-list.js
  31                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 */
  32
  33
  34 /**
  35  * The current list of {@link TextTrack} for a media file.
  36  *
  37  * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
  38  * @extends TrackList
  39  */
  40 var TextTrackList = function (_TrackList) {
  41   _inherits(TextTrackList, _TrackList);
  42
  43   /**
  44    * Create an instance of this class.
  45    *
  46    * @param {TextTrack[]} [tracks=[]]
  47    *        A list of `TextTrack` to instantiate the list with.
  48    */
  49   function TextTrackList() {
  50     var _this, _ret;
  51
  52     var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  53
  54     _classCallCheck(this, TextTrackList);
  55
  56     var list = void 0;
  57
  58     // IE8 forces us to implement inheritance ourselves
  59     // as it does not support Object.defineProperty properly
  60     if (browser.IS_IE8) {
  61       list = _document2['default'].createElement('custom');
  62       for (var prop in _trackList2['default'].prototype) {
  63         if (prop !== 'constructor') {
  64           list[prop] = _trackList2['default'].prototype[prop];
  65         }
  66       }
  67       for (var _prop in TextTrackList.prototype) {
  68         if (_prop !== 'constructor') {
  69           list[_prop] = TextTrackList.prototype[_prop];
  70         }
  71       }
  72     }
  73
  74     list = (_this = _possibleConstructorReturn(this, _TrackList.call(this, tracks, list)), _this);
  75     return _ret = list, _possibleConstructorReturn(_this, _ret);
  76   }
  77
  78   /**
  79    * Add a {@link TextTrack} to the `TextTrackList`
  80    *
  81    * @param {TextTrack} track
  82    *        The text track to add to the list.
  83    *
  84    * @fires TrackList#addtrack
  85    * @private
  86    */
  87
  88
  89   TextTrackList.prototype.addTrack_ = function addTrack_(track) {
  90     _TrackList.prototype.addTrack_.call(this, track);
  91
  92     /**
  93      * @listens TextTrack#modechange
  94      * @fires TrackList#change
  95      */
  96     track.addEventListener('modechange', Fn.bind(this, function () {
  97       this.trigger('change');
  98     }));
  99   };
 100
 101   return TextTrackList;
 102 }(_trackList2['default']);
 103
 104 exports['default'] = TextTrackList;