internal void AddModal(UIElement newElement, bool showBlurrer)
{
int childCount = _panel.Children.Count;
if (childCount > 1)
{
UIElement child = PeekChild();
child.IsHitTestVisible = false;
}
if (childCount <= 2 && showBlurrer)
{
_blurrer.InvalidateArrange();
Animator.AnimatePropertyFromTo(_blurrer, OpacityProperty, 0, null, BlurrerAnimationDurationMs);
_blurrer.Visibility = Visibility.Visible;
}
_panel.Children.Add(CreateDecorator(newElement));
UpdateModalCount();
}
internal void RemoveModal(UIElement closingElement, bool hideBlurrer)
{
if (_panel.Children.Count <= 1)
{
return;
}
var decorator = PeekChild() as Decorator;
if (decorator == null)
{
return;
}
var element = decorator.Child;
if (!ReferenceEquals(element, closingElement))
{
return;
}
_panel.Children.Remove(decorator);
int childCount = _panel.Children.Count;
if (childCount > 0)
{
var child = PeekChild();
child.IsHitTestVisible = true;
if (childCount <= 2 && hideBlurrer)
{
Animator.AnimatePropertyFromTo(_blurrer, OpacityProperty, null, 0, BlurrerAnimationDurationMs, HideBlurrer);
}
}
UpdateModalCount();
}
