private void FanCanvas_CardDrop(object sender, CardDropEventArgs e)
{
var hitTestResult = VisualTreeHelper.HitTest(this, e.MouseEventArgs.GetPosition(this));
FanCanvas fan = null;
if (hitTestResult != null)
{
fan = FindFanCanvasAncestor(hitTestResult.VisualHit);
}
if (fan == null)
{
((FanCanvas)sender).CancelDrag();
}
else
{
var sourceController = FanCanvasControllers[(FanCanvas)sender];
var card = sourceController.CardFromShape(e.CardShape);
//Debug.Assert(card != null);//***
if (card == null)
{
((FanCanvas)sender).CancelDrag();
}
else
{
var targetController = FanCanvasControllers[fan];
if (targetController.AcceptDrop(card))
{
sourceController.DropAcceptedNotification(card);
if (sourceController == HumanCardsController && humanCards.HasVisibleCards() == false)
{
foreach (var mshape in MeldShapes[HumanPlayer])
{
((MeldController)FanCanvasControllers[mshape]).SubmitToGameState();
}
}
}
else
{
((FanCanvas)sender).CancelDrag();
}
}
}
}
void FanCanvas_PreviewMouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (_cardBeingDragged != null)
{
_dragsInLimbo.Add(_cardBeingDragged);
_cardBeingDragged = null;
if (_isDrag)
{
_isDrag = false;
AdornerLayerForDrag().Remove(_dragAdorner);
_dragAdorner = null;
this.ReleaseMouseCapture();
var dropEventArgs = new CardDropEventArgs(_dragsInLimbo.Last(), e, CardDropEvent, this);
RaiseEvent(dropEventArgs);
}
}
}