private void PlayStateChanged(object sender, EventArgs e)
{
EventHandler handlerStoppedPlaying = null;
switch (BackgroundAudioPlayer.Instance.PlayerState)
{
case PlayState.Playing:
PodcastEpisodeModel currentEpisode = updateCurrentlyPlayingEpisode();
if (currentEpisode == null)
{
Debug.WriteLine("Error: No playing episode in DB.");
return;
}
if (CurrentlyPlayingEpisode == null)
{
CurrentlyPlayingEpisode = currentEpisode;
} else if (currentEpisode.EpisodeId != CurrentlyPlayingEpisode.EpisodeId)
{
CurrentlyPlayingEpisode = currentEpisode;
CurrentlyPlayingEpisode.setPlaying();
}
if (CurrentlyPlayingEpisode.TotalLengthTicks == 0)
{
CurrentlyPlayingEpisode.TotalLengthTicks = BackgroundAudioPlayer.Instance.Track.Duration.Ticks;
using (var db = new PodcastSqlModel())
{
PodcastEpisodeModel episode = db.episodeForEpisodeId(CurrentlyPlayingEpisode.EpisodeId);
if (episode == null)
{
Debug.WriteLine("Warning: Got NULL episode from DB when trying to update this episode.");
return;
}
episode.TotalLengthTicks = CurrentlyPlayingEpisode.TotalLengthTicks;
db.SubmitChanges();
PodcastSubscriptionsManager.getInstance().podcastPlaystateChanged(episode.PodcastSubscription);
}
}
break;
case PlayState.Paused:
BackgroundAudioPlayer playerPaused = BackgroundAudioPlayer.Instance;
if (CurrentlyPlayingEpisode != null)
{
CurrentlyPlayingEpisode = App.refreshEpisodeFromAudioAgent(CurrentlyPlayingEpisode);
CurrentlyPlayingEpisode.EpisodePlayState = PodcastEpisodeModel.EpisodePlayStateEnum.Paused;
using (var db = new PodcastSqlModel())
{
PodcastEpisodeModel updatedEpisode = db.Episodes.FirstOrDefault(ep => ep.EpisodeId == CurrentlyPlayingEpisode.EpisodeId);
updatedEpisode.EpisodePlayState = CurrentlyPlayingEpisode.EpisodePlayState;
db.SubmitChanges();
}
handlerStoppedPlaying = OnPodcastStoppedPlaying;
if (handlerStoppedPlaying != null)
{
OnPodcastStoppedPlaying(this, new EventArgs());
}
}
else
{
Debug.WriteLine("SHOULD NOT HAPPEND! Cannot save episode state to paused!");
}
break;
case PlayState.Stopped:
case PlayState.Shutdown:
case PlayState.TrackEnded:
if (CurrentlyPlayingEpisode == null)
{
// We didn't have a track playing.
return;
}
// F**K YOU WINDOWS PHONE!!
/**
* This is so horrible that I can't find other words to describe how bad the BackgroundAudioPlayer
* is in Windows Phone!
*
* First of all the events are fired totally differently between Windows Phone 7 and Windows Phone 8.
* Secondly the events related to when tracks end arae totally wrong and horrible! Let me explain:
* - We get here the PlayState.Stopped event when the track ends.
* - We get the event here BEFORE the AudioAgent gets any events.
* - AudioAgent correctly gets the PlayState.TrackEnded event, but it gets it after we have received the
* event here.
* - We NEVER get the the PlayState.TrackEnded event here.
* - Which is not the case for Windows Phone 7, because it first fires PlayState.TrackEnded.
*
* So this code here is a horrible kludge that just guesses that Windows Phone means "track did end"
* when the state is stopped and the play position is still 0.
*
* Johan, when you return from the future to this piece of code, don't even try to change it or "fix it".
**/
long playpos = 0;
if (BackgroundAudioPlayer.Instance.PlayerState == PlayState.TrackEnded)
{
playpos = CurrentlyPlayingEpisode.TotalLengthTicks;
}
else if (BackgroundAudioPlayer.Instance.PlayerState == PlayState.Stopped
&& BackgroundAudioPlayer.Instance.Position.Ticks == 0)
{
playpos = CurrentlyPlayingEpisode.TotalLengthTicks;
}
else
{
try
{
playpos = BackgroundAudioPlayer.Instance.Position.Ticks;
}
catch (Exception)
{
Debug.WriteLine("Warning: Player didn't return us a play pos!");
}
}
CurrentlyPlayingEpisode.SavedPlayPos = playpos;
CurrentlyPlayingEpisode.setNoPlaying();
using (var db = new PodcastSqlModel())
{
PodcastEpisodeModel savingEpisode = db.Episodes.FirstOrDefault(ep => ep.EpisodeId == CurrentlyPlayingEpisode.EpisodeId);
if (savingEpisode != null)
{
savingEpisode.SavedPlayPos = CurrentlyPlayingEpisode.SavedPlayPos;
// Update play state to listened as appropriate.
if (savingEpisode.isListened())
{
savingEpisode.markAsListened(db.settings().IsAutoDelete);
removeFromPlayqueue(savingEpisode);
}
else
{
savingEpisode.EpisodePlayState = CurrentlyPlayingEpisode.EpisodePlayState;
}
db.SubmitChanges();
PodcastSubscriptionsManager.getInstance().podcastPlaystateChanged(savingEpisode.PodcastSubscription);
}
}
PodcastSubscriptionsManager.getInstance().podcastPlaystateChanged(CurrentlyPlayingEpisode.PodcastSubscriptionInstance);
handlerStoppedPlaying = OnPodcastStoppedPlaying;
if (handlerStoppedPlaying != null)
{
OnPodcastStoppedPlaying(this, new EventArgs());
}
// Cleanup
CurrentlyPlayingEpisode = null;
break;
case PlayState.TrackReady:
break;
case PlayState.Unknown:
// Unknown? WTF.
break;
}
App.mainViewModels.PlayQueue = new System.Collections.ObjectModel.ObservableCollection<PlaylistItem>();
if (CurrentlyPlayingEpisode != null)
{
PodcastSubscriptionsManager.getInstance().podcastPlaystateChanged(CurrentlyPlayingEpisode.PodcastSubscriptionInstance);
}
}
private void initializeCurrentlyPlayingEpisode()
{
// If we have an episodeId stored in local cache, this means we returned to the app and
// have that episode playing. Hence, here we need to reload the episode data from the SQL.
CurrentlyPlayingEpisode = updateCurrentlyPlayingEpisode();
if (CurrentlyPlayingEpisode != null)
{
CurrentlyPlayingEpisode.setPlaying();
}
}