function VolumeBar(player, options) {
    classCallCheck(this, VolumeBar);

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

    _this.on('slideractive', _this.updateLastVolume_);
    _this.on(player, 'volumechange', _this.updateARIAAttributes);
    player.ready(function () {
      return _this.updateARIAAttributes();
    });
    return _this;
  }