internal protected override bool PartialHitTest(ref HitTestArgs args)
{
switch (ClipChildren)
{
case ClipMethod.None:
return(base.PartialHitTest(ref args));
case ClipMethod.ScissorTest:
case ClipMethod.StencilTest:
if (!(ClipByWidget ?? this).BoundingRectHitTest(args.Point))
{
return(false);
}
EnsureRenderChain();
try {
for (var node = FirstChild; node != null; node = node.NextSibling)
{
node.RenderChainBuilder?.AddToRenderChain(renderChain);
}
if (renderChain.HitTest(ref args))
{
return(true);
}
return(base.PartialHitTest(ref args));
} finally {
renderChain.Clear();
}
case ClipMethod.NoRender:
return(false);
default:
throw new InvalidOperationException();
}
}
private Node LookForNodeUnderMouse(RenderChain renderChain)
{
#if iOS || ANDROID
if (!Window.Input.IsTouching(0) && !Window.Input.WasTouchEnded(0))
{
return(null);
}
#endif
var hitTestArgs = new HitTestArgs(Window.Input.MousePosition);
renderChain.HitTest(ref hitTestArgs);
var n = hitTestArgs.Node;
if (
n != null &&
WidgetInput.InputScopeStack.Top != null &&
!n.SameOrDescendantOf(WidgetInput.InputScopeStack.Top)
)
{
n = null;
}
return(n);
}
public bool PartialHitTest(Node node, ref HitTestArgs args)
{
var widget = (Widget)node;
if (!widget.BoundingRectHitTest(args.Point))
{
return(false);
}
var savedLayer = renderChain.CurrentLayer;
try {
renderChain.CurrentLayer = widget.Layer;
for (var child = widget.FirstChild; child != null; child = child.NextSibling)
{
child.RenderChainBuilder?.AddToRenderChain(renderChain);
}
return(renderChain.HitTest(ref args) || SelfPartialHitTest(widget, ref args));
} finally {
renderChain.Clear();
renderChain.CurrentLayer = savedLayer;
}
}
