Merge RenderWidget into single subclass, RenderPart

Source/core/page/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 61 matching lines @@
 #include "core/page/EditorClient.h"
 #include "core/page/FocusController.h"
 #include "core/page/FrameTree.h"
 #include "core/page/Page.h"
 #include "core/page/SpatialNavigation.h"
 #include "core/page/TouchAdjustment.h"
 #include "core/rendering/HitTestRequest.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderFlowThread.h"
 #include "core/rendering/RenderLayer.h"
+#include "core/rendering/RenderPart.h"
 #include "core/rendering/RenderTextControlSingleLine.h"
 #include "core/rendering/RenderView.h"
-#include "core/rendering/RenderWidget.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "core/svg/SVGDocumentExtensions.h"
 #include "platform/PlatformGestureEvent.h"
 #include "platform/PlatformKeyboardEvent.h"
 #include "platform/PlatformTouchEvent.h"
 #include "platform/PlatformWheelEvent.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/TraceEvent.h"
 #include "platform/WindowsKeyboardCodes.h"
 #include "platform/geometry/FloatPoint.h"
@@ skipping 848 matching lines @@
 {
     return m_lastKnownMousePosition;
 }
 
 static LocalFrame* subframeForTargetNode(Node* node)
 {
     if (!node)
         return 0;
 
     RenderObject* renderer = node->renderer();
-    if (!renderer || !renderer->isWidget())
+    if (!renderer || !renderer->isRenderPart())
         return 0;
 
     // FIXME: This explicit check is needed only until RemoteFrames have RemoteFrameViews.
     if (isHTMLFrameElementBase(node) && toHTMLFrameElementBase(node)->contentFrame() && toHTMLFrameElementBase(node)->contentFrame()->isRemoteFrameTemporary())
         return 0;
 
-    Widget* widget = toRenderWidget(renderer)->widget();
+    Widget* widget = toRenderPart(renderer)->widget();
     if (!widget || !widget->isFrameView())
         return 0;
 
     return &toFrameView(widget)->frame();
 }
 
 static LocalFrame* subframeForHitTestResult(const MouseEventWithHitTestResults& hitTestResult)
 {
     if (!hitTestResult.isOverWidget())
         return 0;
@@ skipping 1013 matching lines @@
         if (m_previousWheelScrolledNode)
             m_previousWheelScrolledNode = nullptr;
 
         isOverWidget = result.isOverWidget();
     }
 
     if (node) {
         // Figure out which view to send the event to.
         RenderObject* target = node->renderer();
 
-        if (isOverWidget && target && target->isWidget()) {
-            Widget* widget = toRenderWidget(target)->widget();
+        if (isOverWidget && target && target->isRenderPart()) {
+            Widget* widget = toRenderPart(target)->widget();
             if (widget && passWheelEventToWidget(event, widget))
                 RETURN_WHEEL_EVENT_HANDLED();
         }
 
         if (node && !node->dispatchWheelEvent(event))
             RETURN_WHEEL_EVENT_HANDLED();
     }
 
     // We do another check on the frame view because the event handler can run JS which results in the frame getting destroyed.
     view = m_frame->view();
@@ skipping 361 matching lines @@
     return false;
 }
 
 bool EventHandler::passScrollGestureEventToWidget(const PlatformGestureEvent& gestureEvent, RenderObject* renderer)
 {
     ASSERT(gestureEvent.isScrollEvent());
 
     if (!m_lastGestureScrollOverWidget)
         return false;
 
-    if (!renderer || !renderer->isWidget())
+    if (!renderer || !renderer->isRenderPart())
         return false;
 
-    Widget* widget = toRenderWidget(renderer)->widget();
+    Widget* widget = toRenderPart(renderer)->widget();
 
     if (!widget || !widget->isFrameView())
         return false;
 
     return toFrameView(widget)->frame().eventHandler().handleGestureScrollEvent(gestureEvent);
 }
 
 bool EventHandler::handleGestureScrollEnd(const PlatformGestureEvent& gestureEvent) {
     RefPtrWillBeRawPtr<Node> node = m_scrollGestureHandlingNode;
     clearGestureScrollNodes();
@@ skipping 1455 matching lines @@
     // the event via an EventTargetNode dispatch when this returns false.
     if (!widget->isFrameView())
         return false;
 
     return toFrameView(widget)->frame().eventHandler().handleWheelEvent(wheelEvent);
 }
 
 bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)
 {
     // Figure out which view to send the event to.
-    if (!event.innerNode() || !event.innerNode()->renderer() || !event.innerNode()->renderer()->isWidget())
+    if (!event.innerNode() || !event.innerNode()->renderer() || !event.innerNode()->renderer()->isRenderPart())
         return false;
     return false;
 }
 
 PassRefPtrWillBeRawPtr<DataTransfer> EventHandler::createDraggingDataTransfer() const
 {
     return DataTransfer::create(DataTransfer::DragAndDrop, DataTransferWritable, DataObject::create());
 }
 
 void EventHandler::focusDocumentView()
 {
     Page* page = m_frame->page();
     if (!page)
         return;
     page->focusController().focusDocumentView(m_frame);
 }
 
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink