[MediaGalleries] Add context menu for forgetting galleries. [views]

chrome/browser/ui/views/extensions/media_galleries_dialog_views.h

 // Copyright (c) 2012 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_UI_VIEWS_EXTENSIONS_MEDIA_GALLERIES_DIALOG_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_MEDIA_GALLERIES_DIALOG_VIEWS_H_
 
 #include <map>
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/media_galleries/media_galleries_dialog_controller.h"
+#include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/window/dialog_delegate.h"
 
+namespace ui {
+class MenuModel;
+}
+
 namespace views {
 class Checkbox;
 class LabelButton;
+class MenuRunner;
 class Widget;
 }
 
 // The media galleries configuration view for Views. It will immediately show
 // upon construction.
 class MediaGalleriesDialogViews : public MediaGalleriesDialog,
                                   public views::ButtonListener,
+                                  public views::ContextMenuController,
                                   public views::DialogDelegate {
  public:
   explicit MediaGalleriesDialogViews(
       MediaGalleriesDialogController* controller);
   virtual ~MediaGalleriesDialogViews();
 
   // MediaGalleriesDialog implementation:
   virtual void UpdateGalleries() OVERRIDE;
 
   // views::DialogDelegate implementation:
   virtual string16 GetWindowTitle() const OVERRIDE;
   virtual bool ShouldShowWindowTitle() const OVERRIDE;
   virtual void DeleteDelegate() OVERRIDE;
   virtual views::Widget* GetWidget() OVERRIDE;
   virtual const views::Widget* GetWidget() const OVERRIDE;
   virtual views::View* GetContentsView() OVERRIDE;
   virtual string16 GetDialogButtonLabel(ui::DialogButton button) const OVERRIDE;
   virtual bool IsDialogButtonEnabled(ui::DialogButton button) const OVERRIDE;
   virtual ui::ModalType GetModalType() const OVERRIDE;
   virtual views::View* CreateExtraView() OVERRIDE;
   virtual bool Cancel() OVERRIDE;
   virtual bool Accept() OVERRIDE;
   virtual views::NonClientFrameView* CreateNonClientFrameView(
       views::Widget* widget) OVERRIDE;
 
   // views::ButtonListener implementation:
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
+  // views::ContextMenuController implementation:
+  virtual void ShowContextMenuForView(views::View* source,
+                                      const gfx::Point& point,
+                                      ui::MenuSourceType source_type) OVERRIDE;
+
  private:
   typedef std::map<MediaGalleryPrefId, views::Checkbox*> CheckboxMap;
   typedef std::map<views::Checkbox*, MediaGalleryPrefInfo> NewCheckboxMap;
 
   void InitChildViews();
 
   // Adds a checkbox or updates an existing checkbox. Returns true if a new one
   // was added.
   bool AddOrUpdateGallery(const MediaGalleryPrefInfo& gallery,
                           bool permitted,
                           views::View* container,
                           int trailing_vertical_space);
 
+  void ShowContextMenu(const gfx::Point& point,
+                       ui::MenuSourceType source_type,
+                       MediaGalleryPrefId id);
+
   MediaGalleriesDialogController* controller_;
 
   // The containing window (a weak pointer).
   views::Widget* window_;
 
   // The contents of the dialog. Owned by |window_|'s RootView.
   views::View* contents_;
 
   // A map from media gallery ID to views::Checkbox view.
   CheckboxMap checkbox_map_;
 
   NewCheckboxMap new_checkbox_map_;
 
   // Pointer to the button to add a new gallery. Owned by parent in
   // the dialog views tree.
   views::LabelButton* add_gallery_button_;
 
   // This tracks whether the confirm button can be clicked. It starts as false
   // if no checkboxes are ticked. After there is any interaction, or some
   // checkboxes start checked, this will be true.
   bool confirm_available_;
 
   // True if the user has pressed accept.
   bool accepted_;
 
+  scoped_ptr<views::MenuRunner> context_menu_runner_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaGalleriesDialogViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_MEDIA_GALLERIES_DIALOG_VIEWS_H_