Forward mouse down node information to WebWidgetClient

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 980 matching lines @@
             HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
             mev = m_frame->document()->prepareMouseEvent(request, documentPoint, mouseEvent);
         }
 
         if (passMousePressEventToScrollbar(mev))
             swallowEvent = true;
         else
             swallowEvent = handleMousePressEvent(mev);
     }
 
+    if (mev.hitTestResult().innerNode() && mouseEvent.button() == LeftButton) {

[please use gerrit instead, 2015/06/17 20:07:07]

&& mouseEvent.type() == PlatformMouseEvent::MousePressed

[Yufeng Shen (Slow to review), 2015/06/17 20:12:57]

This is inside handleMousePressEvent(), so it is guaranteed a
MousePressed event.

[please use gerrit instead, 2015/06/17 20:58:05]

In that case, please "ASSERT(mouseEvent.type() ==
PlatformMouseEvent::MousePressed);" to document this assumption.

[Yufeng Shen (Slow to review), 2015/06/17 22:25:50]

Done.

+        HitTestResult result = mev.hitTestResult();
+        result.setToShadowHostIfInUserAgentShadowRoot();
+        m_frame->chromeClient().onClickInput(result.innerNode());
+    }
+
     return swallowEvent;
 }
 
 static DeprecatedPaintLayer* layerForNode(Node* node)
 {
     if (!node)
         return nullptr;
 
     LayoutObject* layoutObject = node->layoutObject();
     if (!layoutObject)
@@ skipping 1056 matching lines @@
         swallowMouseUpEvent = handleMouseReleaseEvent(MouseEventWithHitTestResults(fakeMouseUp, currentHitTest));
 
     bool swallowed = swallowMouseDownEvent | swallowMouseUpEvent | swallowClickEvent;
     if (!swallowed && tappedNode && m_frame->page()) {
         bool domTreeChanged = preDispatchDomTreeVersion != m_frame->document()->domTreeVersion();
         bool styleChanged = preDispatchStyleVersion != m_frame->document()->styleVersion();
 
         IntPoint tappedPositionInViewport = m_frame->page()->frameHost().pinchViewport().rootFrameToViewport(tappedPosition);
         m_frame->chromeClient().showUnhandledTapUIIfNeeded(tappedPositionInViewport, tappedNode.get(), domTreeChanged || styleChanged);
     }
+
+    if (currentHitTest.innerNode()) {

[please use gerrit instead, 2015/06/17 20:07:07]

&& gestureEvent.type() == PlatformEvent::GestureTap

[Yufeng Shen (Slow to review), 2015/06/17 20:12:56]

ditto, this is inside handleGestureTap().

[please use gerrit instead, 2015/06/17 20:58:05]

Please "ASSERT(gestureEvent.type() == PlatformEvent::GestureTap);" to document
this assumption. No worries about performance, this is compiled out in release
mode.

[Yufeng Shen (Slow to review), 2015/06/17 22:25:50]

Done.

+        HitTestResult result = currentHitTest;
+        result.setToShadowHostIfInUserAgentShadowRoot();
+        m_frame->chromeClient().onClickInput(result.innerNode());
+    }
+
     return swallowed;
 }
 
 bool EventHandler::handleGestureLongPress(const GestureEventWithHitTestResults& targetedEvent)
 {
     const PlatformGestureEvent& gestureEvent = targetedEvent.event();
     IntPoint adjustedPoint = gestureEvent.position();
 
     unsigned modifiers = gestureEvent.modifiers();
 
@@ skipping 1674 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink