public static void Add(GUIViewProxy view, VisualElement child)
{
if (view.IsDockedToEditor())
{
GetVisualTree(view).Add(child);
}
else
{
foreach (var visualElement in GetVisualTree(view).Children())
{
visualElement.Add(child);
}
}
}
/// <summary>
/// Adds a mask for a view.
/// </summary>
/// <param name="view"></param>
/// <param name="child"></param>
static void AddMaskToView(GUIViewProxy view, VisualElement child)
{
// Since 2019.3(?), we must suppress input to the elements behind masks.
// TODO Doesn't suppress everything, e.g. tooltips are shown still.
child.RegisterCallback <MouseDownEvent>((e) => e.StopPropagation());
child.RegisterCallback <MouseUpEvent>((e) => e.StopPropagation());
child.RegisterCallback <MouseMoveEvent>((e) => e.StopPropagation());
child.RegisterCallback <WheelEvent>((e) => e.StopPropagation());
child.RegisterCallback <PointerDownEvent>((e) => e.StopPropagation());
child.RegisterCallback <PointerUpEvent>((e) => e.StopPropagation());
child.RegisterCallback <PointerMoveEvent>((e) => e.StopPropagation());
child.RegisterCallback <KeyDownEvent>((e) => e.StopPropagation());
child.RegisterCallback <KeyUpEvent>((e) => e.StopPropagation());
if (view.IsDockedToEditor())
{
UIElementsHelper.GetVisualTree(view).Add(child);
}
else
{
var viewVisualElement = UIElementsHelper.GetVisualTree(view);
Debug.Assert(
viewVisualElement.Children().Count() == 2 &&
viewVisualElement.Children().Count(viewChild => viewChild is IMGUIContainer) == 1,
"Could not find the expected VisualElement structure"
);
foreach (var visualElement in viewVisualElement.Children())
{
if (!(visualElement is IMGUIContainer))
{
visualElement.Add(child);
break;
}
}
}
}