Drag-and-drop: DragEnter, DragOver, DragLeave, DragDrop

third_party/WebKit/Source/core/page/DragController.cpp

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 1132 matching lines @@
   return true;
 }
 
 // TODO(esprehn): forLink is dead code, what was it for?
 void DragController::doSystemDrag(DragImage* image,
                                   const IntPoint& dragLocation,
                                   const IntPoint& eventPos,
                                   DataTransfer* dataTransfer,
                                   LocalFrame* frame,
                                   bool forLink) {
-  // TODO(dcheng): Drag and drop is not yet supported for OOPI.
-  if (m_page->mainFrame()->isRemoteFrame())
-    return;
   m_didInitiateDrag = true;
   m_dragInitiator = frame->document();
 
-  LocalFrame* mainFrame = m_page->deprecatedLocalMainFrame();
+  LocalFrame* mainFrame = frame->localFrameRoot();
   FrameView* mainFrameView = mainFrame->view();
   IntPoint adjustedDragLocation = mainFrameView->rootFrameToContents(
       frame->view()->contentsToRootFrame(dragLocation));
   IntPoint adjustedEventPos = mainFrameView->rootFrameToContents(
       frame->view()->contentsToRootFrame(eventPos));
   WebDragData dragData = dataTransfer->dataObject()->toWebDragData();
   WebDragOperationsMask dragOperationMask =
       static_cast<WebDragOperationsMask>(dataTransfer->sourceOperation());
   IntSize offsetSize(adjustedEventPos - adjustedDragLocation);
   WebPoint offsetPoint(offsetSize.width(), offsetSize.height());
@@ skipping 36 matching lines @@
 }
 
 DEFINE_TRACE(DragController) {
   visitor->trace(m_page);
   visitor->trace(m_documentUnderMouse);
   visitor->trace(m_dragInitiator);
   visitor->trace(m_fileInputElementUnderMouse);
 }
 
 }  // namespace blink