public void Show()
{
if (PlacementTarget != null)
{
FrameworkElement fmContent = Content as FrameworkElement;
Grid outerGrid = new Grid();
if (_adorner == null)
{
// to remove the content as a logical child of 'this'
this.Content = null;
if (fmContent != null)
{
outerGrid.ClipToBounds = UseOpenAnimation;
outerGrid.Children.Add(fmContent);
}
_adorner = new PopupContentAdorner(PlacementTarget, outerGrid, this);
_adorner.DataContext = PlacementTarget.DataContext;
}
//_adorner.UpdateLayout();
if (fmContent != null)
{
UpdatePlacement(new Size(fmContent.ActualWidth, fmContent.ActualHeight));
fmContent.SizeChanged += new SizeChangedEventHandler(fmContent_SizeChanged);
}
_overlay = _adorner.Attach();
if (AutoClose && _overlay != null)
{
_shouldClosePopup = true;
if (_overlayPreviewClickHandler == null)
{
_overlayPreviewClickHandler = new MouseButtonEventHandler(overlay_PreviewMouseLeftButtonDown);
_overlay.PreviewMouseLeftButtonDown += _overlayPreviewClickHandler;
_overlay.AddHandler(MouseLeftButtonDownEvent, new MouseButtonEventHandler(overlay_MouseLeftButtonDown), true);
}
if (_contentPreviewClickHandler == null)
{
_contentPreviewClickHandler = new MouseButtonEventHandler(fmContent_PreviewMouseLeftButtonDown);
fmContent.PreviewMouseLeftButtonDown += _contentPreviewClickHandler;
}
}
if (UseOpenAnimation && fmContent != null)
{
if (fmContent.ActualWidth == 0 && fmContent.ActualHeight == 0)
_playAnimationOnSizeChange = true;
else
{
animate(fmContent, 600);
}
}
//tryToFocusAChild(this);
}
}
public void Hide()
{
if (_adorner != null)
{
_adorner.Detach();
if (AutoClose)
{
//if (_adorner.Content != null)
// _adorner.Content.PreviewMouseLeftButtonDown -= _contentPreviewClickHandler;
//_overlay.PreviewMouseLeftButtonDown -= _overlayPreviewClickHandler;
//_shouldClosePopup = true;
}
object tmp = _adorner.Content;
this.Content = tmp;
_adorner.RemoveChildren();
_adorner = null;
}
}
