Change mouse pointer event targets to the capturing node

third_party/WebKit/Source/core/input/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 1386 matching lines @@
 {
     ASSERT(m_frame);
     ASSERT(m_frame->document());
 
     return m_frame->document()->prepareMouseEvent(request, contentPointFromRootFrame(m_frame, mev.position()), mev);
 }
 
 Node* EventHandler::updateMouseEventTargetNode(Node* targetNode,
     const PlatformMouseEvent& mouseEvent)
 {
-    Node* result = targetNode;
+    Node* newNodeUnderMouse = targetNode;
 
     // If we're capturing, we always go right to that node.
-    if (m_capturingMouseEventsNode) {
-        result = m_capturingMouseEventsNode.get();
+    if (EventTarget* mousePointerCapturingNode = m_pointerEventManager.getMouseCapturingNode()) {
+        newNodeUnderMouse = mousePointerCapturingNode->toNode();
+        DCHECK(newNodeUnderMouse);
+    } else if (m_capturingMouseEventsNode) {
+        newNodeUnderMouse = m_capturingMouseEventsNode.get();
     } else {
         // If the target node is a text node, dispatch on the parent node - rdar://4196646
-        if (result && result->isTextNode())
-            result = FlatTreeTraversal::parent(*result);
+        if (newNodeUnderMouse && newNodeUnderMouse->isTextNode())
+            newNodeUnderMouse = FlatTreeTraversal::parent(*newNodeUnderMouse);
     }
     Node* lastNodeUnderMouse = m_nodeUnderMouse;
-    m_nodeUnderMouse = result;
+    m_nodeUnderMouse = newNodeUnderMouse;
 
     PaintLayer* layerForLastNode = layerForNode(lastNodeUnderMouse);
     PaintLayer* layerForNodeUnderMouse = layerForNode(m_nodeUnderMouse.get());
     Page* page = m_frame->page();
 
     if (lastNodeUnderMouse && (!m_nodeUnderMouse || m_nodeUnderMouse->document() != m_frame->document())) {
         // The mouse has moved between frames.
         if (LocalFrame* frame = lastNodeUnderMouse->document().frame()) {
             if (FrameView* frameView = frame->view())
                 frameView->mouseExitedContentArea();
@@ skipping 69 matching lines @@
 {
     ASSERT(mouseEventType == EventTypeNames::mousedown
         || mouseEventType == EventTypeNames::mousemove
         || mouseEventType == EventTypeNames::mouseup);
 
     Node* lastNodeUnderMouse = updateMouseEventTargetNode(targetNode, mouseEvent);
 
     if (mouseEvent.getSyntheticEventType() == PlatformMouseEvent::FromTouch)
         return dispatchMouseEvent(mouseEventType, m_nodeUnderMouse, clickCount, mouseEvent);
 
-    return m_pointerEventManager.sendMousePointerEvent(
+    Node* newNodeUnderMouse = nullptr;
+    const auto& eventResult = m_pointerEventManager.sendMousePointerEvent(
         m_nodeUnderMouse, mouseEventType, clickCount, mouseEvent, nullptr,
-        lastNodeUnderMouse);
+        lastNodeUnderMouse, &newNodeUnderMouse);
+    m_nodeUnderMouse = newNodeUnderMouse;
+    return eventResult;
 }
 
 void EventHandler::setClickNode(Node* node)
 {
     m_clickNode = node;
 }
 
 WebInputEventResult EventHandler::handleMouseFocus(const MouseEventWithHitTestResults& targetedEvent, InputDeviceCapabilities* sourceCapabilities)
 {
     // If clicking on a frame scrollbar, do not mess up with content focus.
@@ skipping 1060 matching lines @@
 
 FrameHost* EventHandler::frameHost() const
 {
     if (!m_frame->page())
         return nullptr;
 
     return &m_frame->page()->frameHost();
 }
 
 } // namespace blink