public 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.Add(UIElementsHelper.GetVisualTree(view), 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))
{
UIElementsHelper.Add(visualElement, child);
break;
}
}
}
}
public static void AddMaskToView(GUIViewProxy view, VisualElement child)
{
if (view.IsDockedToEditor())
{
UIElementsHelper.Add(UIElementsHelper.GetVisualTree(view), 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))
{
UIElementsHelper.Add(visualElement, child);
break;
}
}
}
}
public static void Mask(
UnmaskedView.MaskData unmaskedViewsAndRegionsMaskData, Color maskColor,
UnmaskedView.MaskData highlightedRegionsMaskData, Color highlightColor, Color blockedInteractionsColor, float highlightThickness
)
{
Unmask();
CopyMaskData(unmaskedViewsAndRegionsMaskData, s_UnmaskedViews);
CopyMaskData(highlightedRegionsMaskData, s_HighlightedViews);
List <GUIViewProxy> views = new List <GUIViewProxy>();
GUIViewDebuggerHelperProxy.GetViews(views);
foreach (var view in views)
{
if (!view.isValid)
{
continue;
}
MaskViewData maskViewData;
var viewRect = new Rect(0, 0, view.position.width, view.position.height);
// mask everything except the unmasked view rects
if (s_UnmaskedViews.TryGetValue(view, out maskViewData))
{
List <Rect> rects = maskViewData.rects;
var maskedRects = GetNegativeSpaceRects(viewRect, rects);
foreach (var rect in maskedRects)
{
var mask = new VisualElement();
mask.style.backgroundColor = maskColor;
mask.SetLayout(rect);
AddMaskToView(view, mask);
s_Masks.Add(mask);
}
if (maskViewData.maskType == MaskType.BlockInteractions)
{
foreach (var rect in rects)
{
var mask = new VisualElement();
mask.style.backgroundColor = blockedInteractionsColor;
mask.SetLayout(rect);
AddMaskToView(view, mask);
s_Masks.Add(mask);
}
}
}
// mask the whole view
else
{
var mask = new VisualElement();
mask.style.backgroundColor = maskColor;
mask.SetLayout(viewRect);
AddMaskToView(view, mask);
s_Masks.Add(mask);
}
if (s_HighlightedViews.TryGetValue(view, out maskViewData))
{
var rects = maskViewData.rects;
// unclip highlight to apply as "outer stroke" if it is being applied to some control(s) in the view
var unclip = rects.Count > 1 || rects[0] != viewRect;
var borderRadius = 5.0f;
foreach (var rect in rects)
{
var highlighter = new VisualElement();
#if UNITY_2019_3_OR_NEWER
highlighter.style.borderLeftColor = highlightColor;
highlighter.style.borderRightColor = highlightColor;
highlighter.style.borderTopColor = highlightColor;
highlighter.style.borderBottomColor = highlightColor;
#else
highlighter.style.borderColor = highlightColor;
#endif
highlighter.style.borderLeftWidth = highlightThickness;
highlighter.style.borderRightWidth = highlightThickness;
highlighter.style.borderTopWidth = highlightThickness;
highlighter.style.borderBottomWidth = highlightThickness;
highlighter.style.borderBottomLeftRadius = borderRadius;
highlighter.style.borderTopLeftRadius = borderRadius;
highlighter.style.borderBottomRightRadius = borderRadius;
highlighter.style.borderTopRightRadius = borderRadius;
highlighter.pickingMode = PickingMode.Ignore;
var layout = rect;
if (unclip)
{
layout.xMin -= highlightThickness;
layout.xMax += highlightThickness;
layout.yMin -= highlightThickness;
layout.yMax += highlightThickness;
}
highlighter.SetLayout(layout);
UIElementsHelper.Add(UIElementsHelper.GetVisualTree(view), highlighter);
s_Highlighters.Add(highlighter);
}
}
}
s_LastHighlightTime = EditorApplication.timeSinceStartup;
}