/// <summary>
/// Accures when a clip is ready for crossfade
/// </summary>
/// <param name="sender"></param>
void Clip_ReadyForCrossfade(IClipPresenter sender)
{
sender.ReadyForCrossfade -= Clip_ReadyForCrossfade;
sender.ExitSequenceCompleted += Clip_ExitSequenceCompleted;
sender.StartExitSequence();
if (UpcomingClip != null && sender.HidesPreviousClip)
{
TransitToNextClip(UpcomingClip);
}
}
IClipPresenter TransitToNextClip(Clip nextClip)
{
var nextPresenter = _factory.CreatePresenterForClip(nextClip);
_presenterInFocus = nextPresenter;
Presenters.Add(nextPresenter);
nextPresenter.StartEntranceSequence();
nextPresenter.ReadyForCrossfade += Clip_ReadyForCrossfade;
return(nextPresenter);
}
/// <summary>
/// Accures when a clip that is in exit sequence completes the sequence. Should be removed.
/// </summary>
/// <param name="sender"></param>
void Clip_ExitSequenceCompleted(IClipPresenter sender)
{
sender.ExitSequenceCompleted -= Clip_ExitSequenceCompleted;
Presenters.Remove(sender);
if (!sender.HidesPreviousClip && sender == _presenterInFocus && Presenters.Count > 0)
{
_presenterInFocus = Presenters[0];
CurrentClip = Presenters[0].OriginalClip;
}
if (sender.HidesPreviousClip)
{
AdvanceCurrentClip();
}
else
{
AdvanceUpcomingClip();
}
NextClipCommand.RaiseCanExecuteChanged();
}
/// <summary>
/// Happens when a presenter which his exit sequence was started when he was not Presenters[0], only need
/// to remove from presenters.
/// </summary>
/// <param name="obj"></param>
void SubClip_ExitSequenceCompleted(IClipPresenter sender)
{
sender.ExitSequenceCompleted -= SubClip_ExitSequenceCompleted;
Presenters.Remove(sender);
NextClipCommand.RaiseCanExecuteChanged();
}