private static DraggableMouseInteraction GetMouseInteraction(MouseEventArgs e)
{
var uie = PresentationTreeUtils.GetUIElementEventSource(e.OriginalSource);
return(uie?.GetVisualAncestorsAndSelf()
.OfType <UIElement>()
.Select(u => u.GetService <DraggableMouseInteractionService>())
.SkipNull()
.SelectMany(s => s._draggableMouseCollection)
.Where(d => d.WillHandleEvent(e))
.LastMaxElementOrDefault(d => d.HandlerPriority));
}
private void QueryCloseOnDown(MouseButtonEventArgsInt e)
{
var uieSource = PresentationTreeUtils.GetUIElementEventSource(e.OriginalSource);
var inside = IsInsideClick(uieSource, e);
if (inside)
{
return;
}
QueryCloseCore(new MouseButtonEventPopupCloseReason(e.OriginalArgs));
}
private static void OnMouseDown(object sender, MouseButtonEventArgs e)
{
if (e.Handled && e.ClickCount != 1)
{
return;
}
var element = (DependencyObject)sender;
var uieSource = PresentationTreeUtils.GetUIElementEventSource(e.OriginalSource);
if (uieSource.GetVisualAncestors().TakeWhile(p => !ReferenceEquals(p, element)).Any(GetNonSelectable))
{
return;
}
var selectionScope = GetSelectionScope(element);
if (selectionScope == null)
{
return;
}
selectionScope.SelectedItem = GetSelectTarget(element) ?? element;
}
private MouseButtonEventInfo GetMouseDownInfo(MouseButtonEventArgsInt e)
{
var uie = PresentationTreeUtils.GetUIElementEventSource(e.OriginalSource);
return(new MouseButtonEventInfo(uie, IsInsideClick(uie, e)));
}