/// <summary>
/// Initializes a new instance of the <see cref="MediaCommand" /> class.
/// </summary>
/// <param name="manager">The command manager.</param>
/// <param name="commandType">Type of the command.</param>
protected MediaCommand(MediaCommandManager manager, MediaCommandType commandType)
{
Manager = manager;
CommandType = commandType;
TaskCompleter = new TaskCompletionSource <bool>();
Promise = TaskCompleter.Task;
}
/// <summary>
/// Gets the pending count of the given command type.
/// </summary>
/// <param name="t">The t.</param>
/// <returns>The amount of commands of the given type</returns>
public int PendingCountOf(MediaCommandType t)
{
lock (SyncLock)
{
return(Commands.Count(c => c.CommandType == t));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaCommand" /> class.
/// </summary>
/// <param name="manager">The command manager.</param>
/// <param name="commandType">Type of the command.</param>
protected MediaCommand(MediaCommandManager manager, MediaCommandType commandType)
{
Manager = manager;
CommandType = commandType;
CancellableTask = new Task <Task>(ExecuteInternal, CancelTokenSource.Token);
TaskContext = CancellableTask.Unwrap();
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaCommand" /> class.
/// </summary>
/// <param name="manager">The command manager.</param>
/// <param name="commandType">Type of the command.</param>
protected MediaCommand(MediaCommandManager manager, MediaCommandType commandType)
{
Manager = manager;
CommandType = commandType;
TaskContext = new Task(ExecuteInternal, CancelTokenSource.Token);
}
public MediaCommand(MusicService musicService, MediaCommandType type)
{
musicService.MediaPlaybackList.ItemFailed += OnMediaPlaybackListItemFailed;
switch (type)
{
case MediaCommandType.PlayAndPause:
ExecuteAction = async(object obj) =>
{
if (IsMediaPlayingFailed)
{
await ShowPlayingErrorDialog();
return;
}
musicService.PlayPauseMusic();
};
break;
case MediaCommandType.Next:
ExecuteAction = (object obj) => musicService.NextMusic();
break;
case MediaCommandType.Previous:
ExecuteAction = (object obj) => musicService.PreviousMusic();
break;
case MediaCommandType.Stop:
ExecuteAction = (object obj) => musicService.StopMusic();
break;
case MediaCommandType.Repeat:
ExecuteAction = (object obj) =>
{
bool?parameter = false;
switch (obj as bool?)
{
case true:
parameter = false;
break;
case false:
parameter = true;
break;
case null:
parameter = null;
break;
default:
break;
}
musicService.RepeatMusic(parameter);
};
break;
case MediaCommandType.Shuffle:
ExecuteAction = (object obj) => musicService.ShuffleMusic();
break;
case MediaCommandType.Mute:
ExecuteAction = (object obj) => musicService.MediaPlayer.IsMuted = musicService.MediaPlayer.IsMuted == false;
break;
case MediaCommandType.ChangePlayRate:
ExecuteAction = (object obj) =>
{
double rate;
switch (obj as string)
{
case "0.5x":
rate = 0.5;
break;
case "1x":
rate = 1;
break;
case "1.5x":
rate = 1.5;
break;
case "2x":
rate = 2;
break;
default:
rate = 1;
break;
}
musicService.SetMediaPlayerPlayRate(rate);
};
break;
default:
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaCommand" /> class.
/// </summary>
/// <param name="manager">The command manager.</param>
/// <param name="commandType">Type of the command.</param>
protected MediaCommand(MediaCommandManager manager, MediaCommandType commandType)
{
Manager = manager;
CommandType = commandType;
Promise = new Task(Execute);
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaCommand" /> class.
/// </summary>
/// <param name="manager">The command manager.</param>
/// <param name="commandType">Type of the command.</param>
protected MediaCommand(MediaCommandManager manager, MediaCommandType commandType)
{
Manager = manager;
CommandType = commandType;
}