/// <summary>
/// Handle an Incoming Song Request Event
/// </summary>
/// <param name="songEvt">The event</param>
private void SongRequeustListener(SongRequestEvent songEvt)
{
if (songEvt.Type == SongRequestEvent.REQUEST_TYPE.Next)
{
SelectedIndex++;
}
else if (songEvt.Type == SongRequestEvent.REQUEST_TYPE.Previous)
{
SelectedIndex--;
}
if (mCurrentIndex < 0)
{
SelectedIndex = FilteredCollection.Count - 1;
}
else if (mCurrentIndex >= FilteredCollection.Count)
{
SelectedIndex = 0;
}
//Get the Current Model.
SongViewModel model = mSongs[SelectedIndex];
//Then fire an event to the listeners to indicate that the Currently selected song has changed.
if (model != null)
{
SendSongChangeEvent(model);
}
}
/// <summary>
/// Push A Song Changed event onto the Event Aggregator.
/// </summary>
/// <param name="view">The View model containing the song we want to listetn to.</param>
private void SendSongChangeEvent(SongViewModel view)
{
//First get where this lies in our filtered collection.
mSelectedSong = view;
SelectedIndex = mSongs.IndexOf(view);
EventAggregator.EventAggregator.Instance.RaiseEvent <SongChangeEvent>(new SongChangeEvent(view.Song));
}
