text-track-button.js 4.5 KB

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  1. 'use strict';
  2. exports.__esModule = true;
  3. var _trackButton = require('../track-button.js');
  4. var _trackButton2 = _interopRequireDefault(_trackButton);
  5. var _component = require('../../component.js');
  6. var _component2 = _interopRequireDefault(_component);
  7. var _textTrackMenuItem = require('./text-track-menu-item.js');
  8. var _textTrackMenuItem2 = _interopRequireDefault(_textTrackMenuItem);
  9. var _offTextTrackMenuItem = require('./off-text-track-menu-item.js');
  10. var _offTextTrackMenuItem2 = _interopRequireDefault(_offTextTrackMenuItem);
  11. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
  12. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  13. 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; }
  14. 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; } /**
  15. * @file text-track-button.js
  16. */
  17. /**
  18. * The base class for buttons that toggle specific text track types (e.g. subtitles)
  19. *
  20. * @extends MenuButton
  21. */
  22. var TextTrackButton = function (_TrackButton) {
  23. _inherits(TextTrackButton, _TrackButton);
  24. /**
  25. * Creates an instance of this class.
  26. *
  27. * @param {Player} player
  28. * The `Player` that this class should be attached to.
  29. *
  30. * @param {Object} [options={}]
  31. * The key/value store of player options.
  32. */
  33. function TextTrackButton(player) {
  34. var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  35. _classCallCheck(this, TextTrackButton);
  36. options.tracks = player.textTracks();
  37. return _possibleConstructorReturn(this, _TrackButton.call(this, player, options));
  38. }
  39. /**
  40. * Create a menu item for each text track
  41. *
  42. * @param {TextTrackMenuItem[]} [items=[]]
  43. * Existing array of items to use during creation
  44. *
  45. * @return {TextTrackMenuItem[]}
  46. * Array of menu items that were created
  47. */
  48. TextTrackButton.prototype.createItems = function createItems() {
  49. var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  50. // Add an OFF menu item to turn all tracks off
  51. items.push(new _offTextTrackMenuItem2['default'](this.player_, { kind: this.kind_ }));
  52. this.hideThreshold_ += 1;
  53. var tracks = this.player_.textTracks();
  54. if (!tracks) {
  55. return items;
  56. }
  57. for (var i = 0; i < tracks.length; i++) {
  58. var track = tracks[i];
  59. // only add tracks that are of the appropriate kind and have a label
  60. if (track.kind === this.kind_) {
  61. items.push(new _textTrackMenuItem2['default'](this.player_, {
  62. track: track,
  63. // MenuItem is selectable
  64. selectable: true
  65. }));
  66. }
  67. }
  68. return items;
  69. };
  70. return TextTrackButton;
  71. }(_trackButton2['default']);
  72. _component2['default'].registerComponent('TextTrackButton', TextTrackButton);
  73. exports['default'] = TextTrackButton;