private void StartTask <TArg>(Func <TArg, Task> action, TArg arg, MarshaledTaskCompletionSource tcs)
{
try
{
SetupTask(action(arg), tcs);
}
catch (Exception e)
{
tcs.SetException(e);
}
}
private void SetupTask(Task task, MarshaledTaskCompletionSource tcs)
{
task.ContinueWith(t =>
{
if (t.IsFaulted)
{
tcs.SetException(t.Exception.InnerException);
}
else
{
tcs.SetResult();
}
}, TaskScheduler.Default);
}
/// <summary>
/// Seeks to next track.
/// </summary>
/// <param name="tcs">The task completion source.</param>
public void NextTrack(MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.NextTrackAsync, tcs);
}
/// <summary>
/// Deactivates the audio source.
/// </summary>
/// <param name="tcs">The task completion source.</param>
public void Deactivate(MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.DeactivateAsync, tcs);
}
/// <summary>
/// Sets the repeat mode.
/// </summary>
/// <param name="repeatMode">The repeat mode.</param>
/// <param name="tcs">The task completion source.</param>
public void SetRepeatMode(RepeatMode repeatMode, MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.SetRepeatModeAsync, repeatMode, tcs);
}
/// <summary>
/// Sets the shuffle mode.
/// </summary>
/// <param name="shuffle">The shuffle.</param>
/// <param name="tcs">The task completion source.</param>
public void SetShuffle(bool shuffle, MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.SetShuffleAsync, shuffle, tcs);
}
/// <summary>
/// Sets the playback progress.
/// </summary>
/// <param name="newProgress">The new progress.</param>
/// <param name="tcs">The task completion source.</param>
public void SetPlayback(TimeSpan newProgress, MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.SetPlaybackProgressAsync, newProgress, tcs);
}
/// <summary>
/// Sets the volume.
/// </summary>
/// <param name="newVolume">The new volume.</param>
/// <param name="tcs">The task completion source.</param>
public void SetVolume(float newVolume, MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.SetVolumeAsync, newVolume, tcs);
}
/// <summary>
/// Seeks to the previous track.
/// </summary>
/// <param name="tcs">The task completion source.</param>
public void PreviousTrack(MarshaledTaskCompletionSource tcs)
{
StartTask(_audioSource.PreviousTrackAsync, tcs);
}
