Linux: middle-click to navigate

chrome/browser/tab_contents/tab_contents_view_gtk.h

 // Copyright (c) 2009 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_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <vector>
 
 #include "base/scoped_ptr.h"
+#include "base/task.h"
 #include "chrome/browser/gtk/focus_store_gtk.h"
 #include "chrome/browser/tab_contents/tab_contents_view.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/owned_widget_gtk.h"
 
 class BlockedPopupContainerViewGtk;
 class ConstrainedWindowGtk;
 class RenderViewContextMenuGtk;
 class SadTabGtk;
@@ skipping 37 matching lines @@
   virtual void StoreFocus();
   virtual void RestoreFocus();
 
   // Backend implementation of RenderViewHostDelegate::View.
   virtual void ShowContextMenu(const ContextMenuParams& params);
   virtual void StartDragging(const WebDropData& drop_data);
   virtual void UpdateDragCursor(bool is_drop_target);
   virtual void GotFocus();
   virtual void TakeFocus(bool reverse);
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
+  virtual void HandleMouseButtonEvent(const WebKit::WebMouseEvent* event);
 
   // NotificationObserver implementation ---------------------------------------
 
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
+  // A callback for when we get the contents of the clipboard.
+  void ClipboardContentsReceived(const gchar* utf8_string);
+
+  class ClipboardRequestCallback {
+   public:
+    ClipboardRequestCallback(TabContentsViewGtk* tab_contents);
+    void Cancel();
+    void Callback(const gchar* utf8_string);
+
+   private:
+    TabContentsViewGtk* tab_contents_view_;
+  };
+
  private:
   // Insert the given widget into the content area. Should only be used for
   // web pages and the like (including interstitials and sad tab). Note that
   // this will be perfectly happy to insert overlapping render views, so care
   // should be taken that the correct one is hidden/shown.
   void InsertIntoContentArea(GtkWidget* widget);
 
   // We keep track of the timestamp of the latest mousedown event.
   static gboolean OnMouseDown(GtkWidget* widget,
                               GdkEventButton* event, TabContentsViewGtk* view);
@@ skipping 31 matching lines @@
   FocusStoreGtk focus_store_;
 
   // Our UI for controlling popups (or NULL if no popup windows have been
   // opened). |popup_view_| is owned by the TabContents, not the view.
   BlockedPopupContainerViewGtk* popup_view_;
 
   // Each individual UI for constrained dialogs currently displayed. The
   // objects in this vector are owned by the TabContents, not the view.
   std::vector<ConstrainedWindowGtk*> constrained_windows_;
 
+  // On middle-click to navigate, we asynchonously request the clipboard
+  // contents and use the following object to handle the case where this
+  // TabContentsViewGtk has been deleted in the mean time.
+  ClipboardRequestCallback* outstanding_clipboard_contents_request_;
+
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewGtk);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_