/// <summary>
/// Previouses this instance.
/// </summary>
public void Previous()
{
using (BusyStack.GetToken())
{
var item = Playlist.Previous();
Player.Play(item);
}
}
/// <summary>
/// Determines whether this instance can previous.
/// </summary>
/// <returns>
/// <c>true</c> if this instance can previous; otherwise, <c>false</c>.
/// </returns>
public bool CanPrevious()
{
var item = Playlist.Previous();
return(CanPlay(item));
}