Version 1
[yaffs-website] / node_modules / video.js / es5 / control-bar / playback-rate-menu / playback-rate-menu-button.js
diff --git a/node_modules/video.js/es5/control-bar/playback-rate-menu/playback-rate-menu-button.js b/node_modules/video.js/es5/control-bar/playback-rate-menu/playback-rate-menu-button.js
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+'use strict';
+
+exports.__esModule = true;
+
+var _menuButton = require('../../menu/menu-button.js');
+
+var _menuButton2 = _interopRequireDefault(_menuButton);
+
+var _menu = require('../../menu/menu.js');
+
+var _menu2 = _interopRequireDefault(_menu);
+
+var _playbackRateMenuItem = require('./playback-rate-menu-item.js');
+
+var _playbackRateMenuItem2 = _interopRequireDefault(_playbackRateMenuItem);
+
+var _component = require('../../component.js');
+
+var _component2 = _interopRequireDefault(_component);
+
+var _dom = require('../../utils/dom.js');
+
+var Dom = _interopRequireWildcard(_dom);
+
+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 playback-rate-menu-button.js
+                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */
+
+
+/**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+var PlaybackRateMenuButton = function (_MenuButton) {
+  _inherits(PlaybackRateMenuButton, _MenuButton);
+
+  /**
+   * 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.
+   */
+  function PlaybackRateMenuButton(player, options) {
+    _classCallCheck(this, PlaybackRateMenuButton);
+
+    var _this = _possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+    _this.updateVisibility();
+    _this.updateLabel();
+
+    _this.on(player, 'loadstart', _this.updateVisibility);
+    _this.on(player, 'ratechange', _this.updateLabel);
+    return _this;
+  }
+
+  /**
+   * Create the `Component`'s DOM element
+   *
+   * @return {Element}
+   *         The element that was created.
+   */
+
+
+  PlaybackRateMenuButton.prototype.createEl = function createEl() {
+    var el = _MenuButton.prototype.createEl.call(this);
+
+    this.labelEl_ = Dom.createEl('div', {
+      className: 'vjs-playback-rate-value',
+      innerHTML: 1.0
+    });
+
+    el.appendChild(this.labelEl_);
+
+    return el;
+  };
+
+  /**
+   * Builds the default DOM `className`.
+   *
+   * @return {string}
+   *         The DOM `className` for this object.
+   */
+
+
+  PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+    return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+  };
+
+  /**
+   * Create the playback rate menu
+   *
+   * @return {Menu}
+   *         Menu object populated with {@link PlaybackRateMenuItem}s
+   */
+
+
+  PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+    var menu = new _menu2['default'](this.player());
+    var rates = this.playbackRates();
+
+    if (rates) {
+      for (var i = rates.length - 1; i >= 0; i--) {
+        menu.addChild(new _playbackRateMenuItem2['default'](this.player(), { rate: rates[i] + 'x' }));
+      }
+    }
+
+    return menu;
+  };
+
+  /**
+   * Updates ARIA accessibility attributes
+   */
+
+
+  PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+    // Current playback rate
+    this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+  };
+
+  /**
+   * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+   * {@link ClickableComponent} for more detailed information on what a click can be.
+   *
+   * @param {EventTarget~Event} [event]
+   *        The `keydown`, `tap`, or `click` event that caused this function to be
+   *        called.
+   *
+   * @listens tap
+   * @listens click
+   */
+
+
+  PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+    // select next rate option
+    var currentRate = this.player().playbackRate();
+    var rates = this.playbackRates();
+
+    // this will select first one if the last one currently selected
+    var newRate = rates[0];
+
+    for (var i = 0; i < rates.length; i++) {
+      if (rates[i] > currentRate) {
+        newRate = rates[i];
+        break;
+      }
+    }
+    this.player().playbackRate(newRate);
+  };
+
+  /**
+   * Get possible playback rates
+   *
+   * @return {Array}
+   *         All possible playback rates
+   */
+
+
+  PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+    return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+  };
+
+  /**
+   * Get whether playback rates is supported by the tech
+   * and an array of playback rates exists
+   *
+   * @return {boolean}
+   *         Whether changing playback rate is supported
+   */
+
+
+  PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+    return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+  };
+
+  /**
+   * Hide playback rate controls when they're no playback rate options to select
+   *
+   * @param {EventTarget~Event} [event]
+   *        The event that caused this function to run.
+   *
+   * @listens Player#loadstart
+   */
+
+
+  PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+    if (this.playbackRateSupported()) {
+      this.removeClass('vjs-hidden');
+    } else {
+      this.addClass('vjs-hidden');
+    }
+  };
+
+  /**
+   * Update button label when rate changed
+   *
+   * @param {EventTarget~Event} [event]
+   *        The event that caused this function to run.
+   *
+   * @listens Player#ratechange
+   */
+
+
+  PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+    if (this.playbackRateSupported()) {
+      this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+    }
+  };
+
+  return PlaybackRateMenuButton;
+}(_menuButton2['default']);
+
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+_component2['default'].registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+exports['default'] = PlaybackRateMenuButton;