function handleGlobalPrev() {
    /*
      Check to see if the current state of the player
      is in playlist mode or not playlist mode. If we are in playlist mode,
      we set prev on the playlist.
    */
    if (_config2.default.active_playlist == "" || _config2.default.active_playlist == null) {
      _audioNavigation2.default.setPrevious();
    } else {
      _audioNavigation2.default.setPreviousPlaylist(_config2.default.active_playlist);
    }
  }
Handles an event on a global previous button.

@access private