protected override void CheckItems(System.Collections.IList newItems)
{
foreach (object newItem in newItems)
{
if (!(newItem is DocumentContent))
{
throw new InvalidOperationException("FloatingDocumentPane can contain only DocumentContents!");
}
}
if (Items.Count == 0 && FloatingWindow != null)
{
FloatingWindow.Close(true);
}
}
public void EndDrag(Point point)
{
IDropSurface dropSufrace = null;
foreach (var surface in Surfaces)
{
if (surface.SurfaceRectangle.Contains(point))
{
if (surface.OnDrop(point))
{
dropSufrace = surface;
break;
}
}
}
foreach (var surface in SurfacesWithDragOver)
{
if (surface != dropSufrace)
{
surface.OnDragLeave(point);
}
}
SurfacesWithDragOver.Clear();
_wnd.OnEndDrag(); //notify floating window that drag operation is coming to end
if (dropSufrace != null)
{
_wnd.Close();
}
else
{
_wnd.Visibility = Visibility.Visible;
_wnd.Activate();
}
_wnd = null;
IsDragging = false;
}