/// <summary>
/// Implements the logic to get the next AudioTrack instance.
/// In a playlist, the source can be from a file, a web request, etc.
/// </summary>
/// <remarks>
/// The AudioTrack URI determines the source, which can be:
/// (a) Isolated-storage file (Relative URI, represents path in the isolated storage)
/// (b) HTTP URL (absolute URI)
/// (c) MediaStreamSource (null)
/// </remarks>
/// <returns>an instance of AudioTrack, or null if the playback is completed</returns>
private AudioTrack GetNextTrack(AudioTrack currentTrack)
{
if (currentTrack != null && currentTrack.Tag != null)
{
var request = new AudioRequest(currentTrack.Tag);
if (request.ToAyah != null && request.ToAyah.Equals(request.CurrentAyah))
return null;
request.GotoNextAyah();
return GetTrackFromRequest(request);
}
else
{
return null;
}
}
public void AudioRequestGotoNextDoesntReturnBismillahForTawba()
{
var request = new AudioRequest(0, new QuranAyah(8, 75), null, 0, AudioDownloadAmount.Page);
request.GotoNextAyah();
Assert.Equal(new QuranAyah(9, 1), request.CurrentAyah);
}
public void AudioRequestGotoNextRepeatsAyah()
{
var request = new AudioRequest(0, new QuranAyah(1, 1), new RepeatInfo(RepeatAmount.OneAyah, 1), 0, AudioDownloadAmount.Page);
request.GotoNextAyah();
Assert.Equal(new QuranAyah(1, 1), request.CurrentAyah);
request.GotoNextAyah();
Assert.Equal(new QuranAyah(1, 2), request.CurrentAyah);
}
public void AudioRequestGotoNextReturnsBismillah(int expSura, int expAya, int currSura, int currAya)
{
var request = new AudioRequest(0, new QuranAyah(currSura, currAya), null, 0, AudioDownloadAmount.Page);
request.GotoNextAyah();
Assert.Equal(new QuranAyah(expSura, expAya), request.CurrentAyah);
}