private void ESC_Execute(object sender, ExecutedRoutedEventArgs e)
{
// Component Box
if (IsComponentBoxOpen)
{
CloseComponentBox();
return;
}
// Selected Group
if (GroupSelector.GetSelectedItemCount() > 1)
{
GroupSelector.UnselectAll();
return;
}
// Selected Item
var layer = GetSelectedLayer();
if (layer == null)
{
GroupSelector.UnselectAll();
return;
}
var prevLayer = layer.AdornedElement
.FindVisualParents <FrameworkElement>()
.Select(element => (StoryboardLayer)element.GetRenderer())
.Skip(1)
.FirstOrDefault(adorner => adorner != null && adorner is SelectionLayer);
if (prevLayer != null)
{
GroupSelector.Select(prevLayer, true);
}
else
{
GroupSelector.UnselectAll();
}
}
