public async void Delete(object arg)
{
if (!App.SettingsHelper.ConfirmDelete || ShowMessage(AppResources.DeleteSingleMessageText,
AppResources.DeleteMessageCaption, MessageBoxButton.OKCancel) == MessageBoxResult.OK)
{
//Uow.MemoTagRepository.DeleteByMemo(_memo);
Uow.FavoriteRepository.DeleteByMemo(_memo);
Uow.MemoRepository.Delete(_memo);
//Uow.Save();
TileHelper.UnPinMemo(_memo);
if (_instance.Track != null && _instance.Track.Source.OriginalString.Contains(_memo.AudioFile))
{
_instance.Close();
}
await StorageHelper.DeleteFileAsync(_memo.AudioFile);
if (!string.IsNullOrWhiteSpace(_memo.ImageFile))
{
await(StorageHelper.DeleteFileAsync(_memo.ImageFile));
}
if (NavigationService.CanGoBack)
{
NavigationService.GoBack();
}
}
}
protected override void OnPlayStateChanged(BackgroundAudioPlayer player, AudioTrack track, PlayState playState)
{
switch (playState)
{
case PlayState.TrackEnded:
player.Close();
break;
case PlayState.TrackReady:
player.Volume = 1.0;
player.Play();
break;
case PlayState.Shutdown:
// TODO: Handle the shutdown state here (e.g. save state)
break;
case PlayState.Unknown:
break;
case PlayState.Stopped:
break;
case PlayState.Paused:
break;
case PlayState.Playing:
break;
case PlayState.BufferingStarted:
break;
case PlayState.BufferingStopped:
break;
case PlayState.Rewinding:
break;
case PlayState.FastForwarding:
break;
}
NotifyComplete();
}
/// <summary>
/// Called when the playstate changes, except for the Error state (see OnError)
/// </summary>
/// <param name="player">The BackgroundAudioPlayer</param>
/// <param name="track">The track playing at the time the playstate changed</param>
/// <param name="playState">The new playstate of the player</param>
/// <remarks>
/// Play State changes cannot be cancelled. They are raised even if the application
/// caused the state change itself, assuming the application has opted-in to the callback.
///
/// Notable playstate events:
/// (a) TrackEnded: invoked when the player has no current track. The agent can set the next track.
/// (b) TrackReady: an audio track has been set and it is now ready for playack.
///
/// Call NotifyComplete() only once, after the agent request has been completed, including async callbacks.
/// </remarks>
protected override void OnPlayStateChanged(BackgroundAudioPlayer player, AudioTrack track, PlayState playState)
{
switch (playState)
{
case PlayState.TrackEnded:
if (currentPlaylist.Count > 0)
{
player.Track = GetNextTrack();
}
break;
case PlayState.TrackReady:
track.BeginEdit();
track.Title = currentPlaylist[currentTrackNumber].Title;
track.EndEdit();
player.Play();
break;
case PlayState.Shutdown:
// TODO: Handle the shutdown state here (e.g. save state)
player.Close();
break;
case PlayState.Unknown:
break;
case PlayState.Stopped:
break;
case PlayState.Paused:
break;
case PlayState.Playing:
break;
case PlayState.BufferingStarted:
track.BeginEdit();
track.Title = "Buffering...";
track.EndEdit();
break;
case PlayState.BufferingStopped:
track.BeginEdit();
track.Title = currentPlaylist[currentTrackNumber].Title;
track.EndEdit();
break;
case PlayState.Rewinding:
track.BeginEdit();
track.Title = "Rewinding...";
track.EndEdit();
break;
case PlayState.FastForwarding:
track.BeginEdit();
track.Title = "FastForwarding...";
track.EndEdit();
break;
}
NotifyComplete();
}
/// <summary>
/// Called when the user requests an action using application/system provided UI
/// </summary>
/// <param name="player">The BackgroundAudioPlayer</param>
/// <param name="track">The track playing at the time of the user action</param>
/// <param name="action">The action the user has requested</param>
/// <param name="param">
/// The data associated with the requested action.
/// In the current version this parameter is only for use with the Seek action,
/// to indicate the requested position of an audio track
/// </param>
/// <remarks>
/// User actions do not automatically make any changes in system state; the agent is responsible
/// for carrying out the user actions if they are supported.
/// Call NotifyComplete() only once, after the agent request has been completed, including async callbacks.
/// </remarks>
protected override void OnUserAction(BackgroundAudioPlayer player, AudioTrack track, UserAction action, object param)
{
Debug.WriteLine("AudioPlayer.OnUserAction() track.Source {0} track.Tag {1} action {2}",
null == track ? "<no track>" : null == track.Source ? "<none>" : track.Source.ToString(),
null == track ? "<no track>" : track.Tag ?? "<none>", action);
try
{
switch (action)
{
case UserAction.Play:
UpdateTrack(player);
if (PlayState.Playing != player.PlayerState && null != player.Track)
player.Play();
break;
case UserAction.Stop:
player.Stop();
break;
case UserAction.Pause:
if (PlayState.Playing == player.PlayerState)
player.Pause();
break;
case UserAction.FastForward:
if (null != track && null != track.Source)
player.FastForward();
break;
case UserAction.Rewind:
if (null != track && null != track.Source)
player.Rewind();
break;
case UserAction.Seek:
if (null != track)
player.Position = (TimeSpan)param;
break;
case UserAction.SkipNext:
player.Track = GetNextTrack();
if (PlayState.Playing != player.PlayerState && null != player.Track)
player.Play();
break;
case UserAction.SkipPrevious:
var previousTrack = GetPreviousTrack();
if (previousTrack != null)
player.Track = previousTrack;
if (PlayState.Playing != player.PlayerState && null != player.Track)
player.Play();
break;
}
}
catch (Exception ex)
{
Debug.WriteLine("AudioPlayer.OnUserAction() failed: " + ex.ExtendedMessage());
// Is there anything we can do about this?
try
{
player.Close();
}
catch (Exception ex2)
{
Debug.WriteLine("AudioPlayer.OnUserAction() close failed: " + ex2.ExtendedMessage());
}
}
finally
{
NotifyComplete();
}
}
/// <summary>
/// Called when the playstate changes, except for the Error state (see OnError)
/// </summary>
/// <param name="player">The BackgroundAudioPlayer</param>
/// <param name="track">The track playing at the time the playstate changed</param>
/// <param name="playState">The new playstate of the player</param>
/// <remarks>
/// Play State changes cannot be cancelled. They are raised even if the application
/// caused the state change itself, assuming the application has opted-in to the callback.
///
/// Notable playstate events:
/// (a) TrackEnded: invoked when the player has no current track. The agent can set the next track.
/// (b) TrackReady: an audio track has been set and it is now ready for playack.
///
/// Call NotifyComplete() only once, after the agent request has been completed, including async callbacks.
/// </remarks>
protected override void OnPlayStateChanged(BackgroundAudioPlayer player, AudioTrack track, PlayState playState)
{
switch (playState)
{
case PlayState.TrackEnded:
if (currentPlaylist.Count > 0)
player.Track = GetNextTrack();
break;
case PlayState.TrackReady:
track.BeginEdit();
track.Title = currentPlaylist[currentTrackNumber].Title;
track.EndEdit();
player.Play();
break;
case PlayState.Shutdown:
// TODO: Handle the shutdown state here (e.g. save state)
player.Close();
break;
case PlayState.Unknown:
break;
case PlayState.Stopped:
break;
case PlayState.Paused:
break;
case PlayState.Playing:
break;
case PlayState.BufferingStarted:
track.BeginEdit();
track.Title = "Buffering...";
track.EndEdit();
break;
case PlayState.BufferingStopped:
track.BeginEdit();
track.Title = currentPlaylist[currentTrackNumber].Title;
track.EndEdit();
break;
case PlayState.Rewinding:
track.BeginEdit();
track.Title = "Rewinding...";
track.EndEdit();
break;
case PlayState.FastForwarding:
track.BeginEdit();
track.Title = "FastForwarding...";
track.EndEdit();
break;
}
NotifyComplete();
}