Version 1

[yaffs-website] / node_modules / video.js / es5 / control-bar / text-track-controls / descriptions-button.js

diff --git a/node_modules/video.js/es5/control-bar/text-track-controls/descriptions-button.js b/node_modules/video.js/es5/control-bar/text-track-controls/descriptions-button.js
new file mode 100644 (file)
index 0000000..e0e6c8f
--- /dev/null
+++ b/node_modules/video.js/es5/control-bar/text-track-controls/descriptions-button.js
@@ -0,0 +1,136 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _textTrackButton = require('./text-track-button.js');
+
+var _textTrackButton2 = _interopRequireDefault(_textTrackButton);
+
+var _component = require('../../component.js');
+
+var _component2 = _interopRequireDefault(_component);
+
+var _fn = require('../../utils/fn.js');
+
+var Fn = _interopRequireWildcard(_fn);
+
+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 descriptions-button.js
+                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */
+
+
+/**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+var DescriptionsButton = function (_TextTrackButton) {
+  _inherits(DescriptionsButton, _TextTrackButton);
+
+  /**
+   * Creates an instance of this class.
+   *
+   * @param {Player} player
+   *        The `Player` that this class should be attached to.
+   *
+   * @param {Object} [options]
+   *        The key/value store of player options.
+   *
+   * @param {Component~ReadyCallback} [ready]
+   *        The function to call when this component is ready.
+   */
+  function DescriptionsButton(player, options, ready) {
+    _classCallCheck(this, DescriptionsButton);
+
+    var _this = _possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+    _this.el_.setAttribute('aria-label', 'Descriptions Menu');
+
+    var tracks = player.textTracks();
+
+    if (tracks) {
+      var changeHandler = Fn.bind(_this, _this.handleTracksChange);
+
+      tracks.addEventListener('change', changeHandler);
+      _this.on('dispose', function () {
+        tracks.removeEventListener('change', changeHandler);
+      });
+    }
+    return _this;
+  }
+
+  /**
+   * Handle text track change
+   *
+   * @param {EventTarget~Event} event
+   *        The event that caused this function to run
+   *
+   * @listens TextTrackList#change
+   */
+
+
+  DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+    var tracks = this.player().textTracks();
+    var disabled = false;
+
+    // Check whether a track of a different kind is showing
+    for (var i = 0, l = tracks.length; i < l; i++) {
+      var track = tracks[i];
+
+      if (track.kind !== this.kind_ && track.mode === 'showing') {
+        disabled = true;
+        break;
+      }
+    }
+
+    // If another track is showing, disable this menu button
+    if (disabled) {
+      this.disable();
+    } else {
+      this.enable();
+    }
+  };
+
+  /**
+   * Builds the default DOM `className`.
+   *
+   * @return {string}
+   *         The DOM `className` for this object.
+   */
+
+
+  DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+    return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+  };
+
+  return DescriptionsButton;
+}(_textTrackButton2['default']);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DescriptionsButton.prototype.kind_ = 'descriptions';
+
+/**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+_component2['default'].registerComponent('DescriptionsButton', DescriptionsButton);
+exports['default'] = DescriptionsButton;