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      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 CONTENT_BROWSER_RENDERER_HOST_POPUP_MENU_HELPER_MAC_H_
      6 #define CONTENT_BROWSER_RENDERER_HOST_POPUP_MENU_HELPER_MAC_H_
      7 
      8 #include <vector>
      9 
     10 #include "base/compiler_specific.h"
     11 #include "content/common/content_export.h"
     12 #include "content/public/browser/notification_observer.h"
     13 #include "content/public/browser/notification_registrar.h"
     14 #include "ui/gfx/rect.h"
     15 
     16 namespace content {
     17 class RenderViewHost;
     18 class RenderViewHostImpl;
     19 class RenderWidgetHostViewMac;
     20 struct MenuItem;
     21 
     22 class PopupMenuHelper : public NotificationObserver {
     23  public:
     24   // Creates a PopupMenuHelper that will notify |render_view_host| when a user
     25   // selects or cancels the popup.
     26   explicit PopupMenuHelper(RenderViewHost* render_view_host);
     27 
     28   // Shows the popup menu and notifies the RenderViewHost of the selection/
     29   // cancel.
     30   // This call is blocking.
     31   void ShowPopupMenu(const gfx::Rect& bounds,
     32                      int item_height,
     33                      double item_font_size,
     34                      int selected_item,
     35                      const std::vector<MenuItem>& items,
     36                      bool right_aligned,
     37                      bool allow_multiple_selection);
     38 
     39   // Immediately return from ShowPopupMenu.
     40   CONTENT_EXPORT static void DontShowPopupMenuForTesting();
     41 
     42  protected:
     43   virtual RenderWidgetHostViewMac* GetRenderWidgetHostView() const;
     44 
     45   // NotificationObserver implementation:
     46   virtual void Observe(int type,
     47                        const NotificationSource& source,
     48                        const NotificationDetails& details) OVERRIDE;
     49 
     50   NotificationRegistrar notification_registrar_;
     51 
     52   RenderViewHostImpl* render_view_host_;
     53 
     54   DISALLOW_COPY_AND_ASSIGN(PopupMenuHelper);
     55 };
     56 
     57 }  // namespace content
     58 
     59 #endif  // CONTENT_BROWSER_RENDERER_HOST_POPUP_MENU_HELPER_MAC_H_
     60