chrome/browser/ui/gtk/tab_contents/web_drag_bookmark_handler_gtk.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_GTK_TAB_CONTENTS_WEB_DRAG_BOOKMARK_HANDLER_GTK_H_
   6 #define CHROME_BROWSER_UI_GTK_TAB_CONTENTS_WEB_DRAG_BOOKMARK_HANDLER_GTK_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "chrome/browser/bookmarks/bookmark_node_data.h"
  10 #include "content/public/browser/web_drag_dest_delegate.h"
  11
  12 class BookmarkTabHelper;
  13
  14 namespace content {
  15 class WebContents;
  16 }
  17
  18 // Chrome needs to intercept content drag events so it can dispatch them to the
  19 // bookmarks and extensions system.
  20 class WebDragBookmarkHandlerGtk : public content::WebDragDestDelegate {
  21  public:
  22   WebDragBookmarkHandlerGtk();
  23   virtual ~WebDragBookmarkHandlerGtk();
  24
  25   // Overridden from content::WebDragDestDelegate:
  26   virtual void DragInitialize(content::WebContents* contents) OVERRIDE;
  27   virtual GdkAtom GetBookmarkTargetAtom() const OVERRIDE;
  28   virtual void OnReceiveDataFromGtk(GtkSelectionData* data) OVERRIDE;
  29   virtual void OnReceiveProcessedData(const GURL& url,
  30                                       const base::string16& title) OVERRIDE;
  31   virtual void OnDragOver() OVERRIDE;
  32   virtual void OnDragEnter() OVERRIDE;
  33   virtual void OnDrop() OVERRIDE;
  34   virtual void OnDragLeave() OVERRIDE;
  35
  36  private:
  37   // The BookmarkTabHelper.
  38   // Weak reference; may be NULL if the contents don't have a
  39   // BookmarkTabHelper (e.g. WebUI dialogs).
  40   BookmarkTabHelper* bookmark_tab_helper_;
  41
  42   content::WebContents* web_contents_;
  43
  44   // The bookmark data for the current tab. This will be empty if there is not
  45   // a native bookmark drag (or we haven't gotten the data from the source yet).
  46   BookmarkNodeData bookmark_drag_data_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(WebDragBookmarkHandlerGtk);
  49 };
  50
  51 #endif  // CHROME_BROWSER_UI_GTK_TAB_CONTENTS_WEB_DRAG_BOOKMARK_HANDLER_GTK_H_