platform/video.videojs/dist/video.es.js
function MenuButton(player) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    classCallCheck(this, MenuButton);

    var _this = possibleConstructorReturn(this, _Component.call(this, player, options));

    _this.menuButton_ = new Button(player, options);

    _this.menuButton_.controlText(_this.controlText_);
    _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');

    // Add buildCSSClass values to the button, not the wrapper
    var buttonClass = Button.prototype.buildCSSClass();

    _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
    _this.menuButton_.removeClass('vjs-control');

    _this.addChild(_this.menuButton_);

    _this.update();

    _this.enabled_ = true;

    _this.on(_this.menuButton_, 'tap', _this.handleClick);
    _this.on(_this.menuButton_, 'click', _this.handleClick);
    _this.on(_this.menuButton_, 'focus', _this.handleFocus);
    _this.on(_this.menuButton_, 'blur', _this.handleBlur);

    _this.on('keydown', _this.handleSubmenuKeyPress);
    return _this;
  }
function MenuButton(player) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    classCallCheck(this, MenuButton);

    var _this = possibleConstructorReturn(this, _Component.call(this, player, options));

    _this.menuButton_ = new Button(player, options);

    _this.menuButton_.controlText(_this.controlText_);
    _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');

    // Add buildCSSClass values to the button, not the wrapper
    var buttonClass = Button.prototype.buildCSSClass();

    _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
    _this.menuButton_.removeClass('vjs-control');

    _this.addChild(_this.menuButton_);

    _this.update();

    _this.enabled_ = true;

    _this.on(_this.menuButton_, 'tap', _this.handleClick);
    _this.on(_this.menuButton_, 'click', _this.handleClick);
    _this.on(_this.menuButton_, 'focus', _this.handleFocus);
    _this.on(_this.menuButton_, 'blur', _this.handleBlur);

    _this.on('keydown', _this.handleSubmenuKeyPress);
    return _this;
  }
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.