/// <summary>
/// Updates the tile. Called when the app is initialized and whenever the track changes.
///
/// </summary>
/// <param name="track">the track, which may be null</param>
/// <param name="init">true if this method is called because the app is being initialized, false otherwise</param>
/// <returns></returns>
public async Task UpdateTileAndBackground(MusicItem track, bool init = false)
{
try {
if (track != null)
{
await Update(track);
var maybeCover = await Covers.TryGetCover(track);
if (maybeCover != null)
{
await SetBackground(maybeCover);
}
}
else
{
await UpdateNoTrack();
if (init)
{
var uri = await SetRandomBackground();
//if(uri == null) {
// await SetBackground(DefaultBackgroundUri);
//}
}
}
} catch (Exception) {
// suppresses the exception intentionally, what is the user supposed to do anyway if this fails?
// it fails occasionally with some absurd COM Exception message
//MessagingService.Instance.Send("Failed to update tile or unable to send toast. " + e.Message);
}
}
protected async Task <Uri> GetCoverUriOrDefault(MusicItem track)
{
mutex.WaitOne();
Uri maybeCover = null;
try {
maybeCover = await Covers.TryGetCover(track);
} finally {
mutex.ReleaseMutex();
}
return(maybeCover != null?PhoneTileUtil.TileUri(maybeCover) : defaultTileUri);
}
/// <summary>
/// Sends a toast notification displaying metadata of the given track.
/// </summary>
/// <param name="track">track to display in toast notification</param>
/// <returns></returns>
public override async Task Update(MusicItem track)
{
Uri maybeCover = await Covers.TryGetCover(track);
if (maybeCover != null)
{
await SetBackground(maybeCover);
}
var xml = await SetXmlContent(track, maybeCover);
SetSilent(xml);
Show(xml);
}
protected async Task <Uri> GetCoverUriOrDefault(MusicItem track)
{
var maybeUri = await Covers.TryGetCover(track);
return(maybeUri != null ? maybeUri : DefaultImageUri);
}