Bookmark Manager Drag and Drop backend....

chrome/browser/renderer_host/render_view_host_delegate.h

 // Copyright (c) 2010 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 CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 #include "chrome/common/content_settings_types.h"
 #include "chrome/common/view_types.h"
 #include "net/base/load_states.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDragOperation.h"
 #include "webkit/glue/window_open_disposition.h"
 
+struct BookmarkDragData;
 struct ContextMenuParams;
 class FilePath;
 class GURL;
 class Value;
 struct NativeWebKeyboardEvent;
 class NavigationEntry;
+class OSExchangeData;
 class Profile;
 struct RendererPreferences;
 class RenderProcessHost;
 class RenderViewHost;
 class ResourceRedirectDetails;
 class ResourceRequestDetails;
 class SkBitmap;
 class TabContents;
 struct ThumbnailScore;
 struct ViewHostMsg_DidPrintPage_Params;
@@ skipping 363 matching lines @@
         const std::vector<webkit_glue::FormFieldValues>& forms) = 0;
 
     // Called to retrieve a list of AutoFill suggestions from the web database
     // given the name of the field and what the user has already typed in the
     // field.  Returns true to indicate that
     // RenderViewHost::AutoFillSuggestionsReturned has been called.
     virtual bool GetAutoFillSuggestions(
         int query_id, const webkit_glue::FormField& field) = 0;
   };
 
+  // BookmarkDrag --------------------------------------------------------------
+  // Interface for forwarding bookmark drag and drop to extenstions.
+
+  class BookmarkDrag {
+   public:
+
+#if defined(TOOLKIT_VIEWS)
+    typedef OSExchangeData DragData;
+#elif defined(OS_LINUX)
+     // TODO(arv): GtkSelectionData?
+    class DragData {};
+#else
+    // TODO(arv): NSDraggingInfo?
+    class DragData {};
+#endif
+
+    virtual void OnDragEnter(const DragData* data) = 0;
+    virtual void OnDragOver(const DragData* data) = 0;
+    virtual void OnDragLeave(const DragData* data) = 0;
+    virtual void OnDrop(const DragData* data) = 0;
+  };
+
   // ---------------------------------------------------------------------------
 
   // Returns the current delegate associated with a feature. May return NULL if
   // there is no corresponding delegate.
   virtual View* GetViewDelegate();
   virtual RendererManagement* GetRendererManagementDelegate();
   virtual BrowserIntegration* GetBrowserIntegrationDelegate();
   virtual Resource* GetResourceDelegate();
   virtual Save* GetSaveDelegate();
   virtual Printing* GetPrintingDelegate();
   virtual FavIcon* GetFavIconDelegate();
   virtual FormFieldHistory* GetFormFieldHistoryDelegate();
   virtual AutoFill* GetAutoFillDelegate();
+  virtual BookmarkDrag* GetBookmarkDragDelegate();
 
   // Gets the URL that is currently being displayed, if there is one.
   virtual const GURL& GetURL() const;
 
   // Return this object cast to a TabContents, if it is one. If the object is
   // not a TabContents, returns NULL.
   virtual TabContents* GetAsTabContents();
 
   // Return id number of browser window which this object is attached to. If no
   // browser window is attached to, just return -1.
@@ skipping 166 matching lines @@
   virtual bool IsExternalTabContainer() const;
 
   // The RenderView has inserted one css file into page.
   virtual void DidInsertCSS() {}
 
   // A different node in the page got focused.
   virtual void FocusedNodeChanged() {}
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_