Drag-and-drop across OOPIFs.

third_party/WebKit/Source/web/WebFrameWidgetBase.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebFrameWidgetBase_h
 #define WebFrameWidgetBase_h
 
 #include "core/clipboard/DataObject.h"
 #include "public/platform/WebDragData.h"
 #include "public/web/WebFrameWidget.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
 
 class CompositorAnimationTimeline;
 class CompositorProxyClient;
 class DragController;
 class GraphicsLayer;
+class WebImage;
 class WebLayer;
 class WebLocalFrameImpl;
 class WebViewImpl;
 class HitTestResult;
 struct WebPoint;
 
 class WebFrameWidgetBase : public WebFrameWidget {
  public:
   virtual bool forSubframe() const = 0;
   virtual void scheduleAnimation() = 0;
@@ skipping 28 matching lines @@
   void dragTargetDragLeave() override;
   void dragTargetDrop(const WebDragData&,
                       const WebPoint& pointInViewport,
                       const WebPoint& screenPoint,
                       int modifiers) override;
   void dragSourceEndedAt(const WebPoint& pointInViewport,
                          const WebPoint& screenPoint,
                          WebDragOperation) override;
   void dragSourceSystemDragEnded() override;
 
+  // Called when a drag-n-drop operation should begin.
+  void startDragging(WebReferrerPolicy,
+                     const WebDragData&,
+                     WebDragOperationsMask,
+                     const WebImage& dragImage,
+                     const WebPoint& dragImageOffset);
+
+  bool doingDragAndDrop() { return m_doingDragAndDrop; }
+
  protected:
   enum DragAction { DragEnter, DragOver };
 
   // Consolidate some common code between starting a drag over a target and
   // updating a drag over a target. If we're starting a drag, |isEntering|
   // should be true.
   WebDragOperation dragTargetDragEnterOrOver(const WebPoint& pointInViewport,
                                              const WebPoint& screenPoint,
                                              DragAction,
                                              int modifiers);
 
   // Helper function to call VisualViewport::viewportToRootFrame().
   WebPoint viewportToRootFrame(const WebPoint& pointInViewport) const;
 
+  // Returns the local root as a LocalFrame*.
+  LocalFrame* localFrameRoot() const;
+
   WebViewImpl* view() const;
 
   // Returns the page object associated with this widget. This may be null when
   // the page is shutting down, but will be valid at all other times.
   Page* page() const;
 
   // A copy of the web drop data object we received from the browser.
   Persistent<DataObject> m_currentDragData;
 
   bool m_doingDragAndDrop = false;
 
   // The available drag operations (copy, move link...) allowed by the source.
   WebDragOperation m_operationsAllowed = WebDragOperationNone;
 
   // The current drag operation as negotiated by the source and destination.
   // When not equal to DragOperationNone, the drag data can be dropped onto the
   // current drop target in this WebView (the drop target can accept the drop).
   WebDragOperation m_dragOperation = WebDragOperationNone;
 };
 
 DEFINE_TYPE_CASTS(WebFrameWidgetBase, WebFrameWidget, widget, true, true);
 
 }  // namespace blink
 
 #endif