Fabric: Custom [RCTViewComponentView hitTest:] that takes `pointerE…

…vents` into an account

Summary:
@public
In RN we have special `pointerEvents` prop that controls whether the View can be the target of touch events.
This is a pretty straight-forward implementation of that.

Reviewed By: sahrens

Differential Revision: D9688877

fbshipit-source-id: 1524647b0a33e4dd14563f531d636469bf3bdef7

React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm

@@ -196,6 +196,22 @@ - (void)updateLayoutMetrics:(LayoutMetrics)layoutMetrics
   [self invalidateLayer];
 }
 
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
+{
+  auto viewProps = *std::static_pointer_cast<const ViewProps>(_props);
+  switch (viewProps.pointerEvents) {
+    case PointerEventsMode::Auto:
+      return [super hitTest:point withEvent:event];
+    case PointerEventsMode::None:
+      return nil;
+    case PointerEventsMode::BoxOnly:
+      return [self pointInside:point withEvent:event] ? self : nil;
+    case PointerEventsMode::BoxNone:
+      UIView *view = [super hitTest:point withEvent:event];
+      return view != self ? view : nil;
+  }
+}
+
 static RCTCornerRadii RCTCornerRadiiFromBorderRadii(BorderRadii borderRadii) {
   return RCTCornerRadii {
     .topLeft = (CGFloat)borderRadii.topLeft,