chrome/browser/ui/toolbar/wrench_menu_model.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_TOOLBAR_WRENCH_MENU_MODEL_H_
   6 #define CHROME_BROWSER_UI_TOOLBAR_WRENCH_MENU_MODEL_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
  11 #include "content/public/browser/host_zoom_map.h"
  12 #include "content/public/browser/notification_observer.h"
  13 #include "content/public/browser/notification_registrar.h"
  14 #include "ui/base/accelerators/accelerator.h"
  15 #include "ui/base/models/button_menu_item_model.h"
  16 #include "ui/base/models/simple_menu_model.h"
  17
  18 class BookmarkSubMenuModel;
  19 class Browser;
  20 class RecentTabsSubMenuModel;
  21 class TabStripModel;
  22
  23 namespace {
  24 class MockWrenchMenuModel;
  25 }  // namespace
  26
  27 // A menu model that builds the contents of an encoding menu.
  28 class EncodingMenuModel : public ui::SimpleMenuModel,
  29                           public ui::SimpleMenuModel::Delegate {
  30  public:
  31   explicit EncodingMenuModel(Browser* browser);
  32   virtual ~EncodingMenuModel();
  33
  34   // Overridden from ui::SimpleMenuModel::Delegate:
  35   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
  36   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
  37   virtual bool GetAcceleratorForCommandId(
  38       int command_id,
  39       ui::Accelerator* accelerator) OVERRIDE;
  40   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
  41
  42  private:
  43   void Build();
  44
  45   Browser* browser_;  // weak
  46
  47   DISALLOW_COPY_AND_ASSIGN(EncodingMenuModel);
  48 };
  49
  50 // A menu model that builds the contents of the zoom menu.
  51 class ZoomMenuModel : public ui::SimpleMenuModel {
  52  public:
  53   explicit ZoomMenuModel(ui::SimpleMenuModel::Delegate* delegate);
  54   virtual ~ZoomMenuModel();
  55
  56  private:
  57   void Build();
  58
  59   DISALLOW_COPY_AND_ASSIGN(ZoomMenuModel);
  60 };
  61
  62 class ToolsMenuModel : public ui::SimpleMenuModel {
  63  public:
  64   ToolsMenuModel(ui::SimpleMenuModel::Delegate* delegate, Browser* browser);
  65   virtual ~ToolsMenuModel();
  66
  67  private:
  68   void Build(Browser* browser);
  69
  70   scoped_ptr<EncodingMenuModel> encoding_menu_model_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(ToolsMenuModel);
  73 };
  74
  75 // A menu model that builds the contents of the wrench menu.
  76 class WrenchMenuModel : public ui::SimpleMenuModel,
  77                         public ui::SimpleMenuModel::Delegate,
  78                         public ui::ButtonMenuItemModel::Delegate,
  79                         public TabStripModelObserver,
  80                         public content::NotificationObserver {
  81  public:
  82   // Range of command ID's to use for the items representing bookmarks in the
  83   // bookmark menu, must not overlap with that for recent tabs submenu.
  84   static const int kMinBookmarkCommandId = 1;
  85   static const int kMaxBookmarkCommandId = 1000;
  86
  87   // Range of command ID's to use for the items in the recent tabs submenu, must
  88   // not overlap with that for bookmarks.
  89   static const int kMinRecentTabsCommandId = 1001;
  90   static const int kMaxRecentTabsCommandId = 1200;
  91
  92   // TODO: remove |is_new_menu|.
  93   WrenchMenuModel(ui::AcceleratorProvider* provider,
  94                   Browser* browser,
  95                   bool is_new_menu);
  96   virtual ~WrenchMenuModel();
  97
  98   // Overridden for ButtonMenuItemModel::Delegate:
  99   virtual bool DoesCommandIdDismissMenu(int command_id) const OVERRIDE;
 100
 101   // Overridden for both ButtonMenuItemModel::Delegate and SimpleMenuModel:
 102   virtual bool IsItemForCommandIdDynamic(int command_id) const OVERRIDE;
 103   virtual base::string16 GetLabelForCommandId(int command_id) const OVERRIDE;
 104   virtual bool GetIconForCommandId(int command_id,
 105                                    gfx::Image* icon) const OVERRIDE;
 106   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
 107   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
 108   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
 109   virtual bool IsCommandIdVisible(int command_id) const OVERRIDE;
 110   virtual bool GetAcceleratorForCommandId(
 111       int command_id,
 112       ui::Accelerator* accelerator) OVERRIDE;
 113
 114   // Overridden from TabStripModelObserver:
 115   virtual void ActiveTabChanged(content::WebContents* old_contents,
 116                                 content::WebContents* new_contents,
 117                                 int index,
 118                                 int reason) OVERRIDE;
 119   virtual void TabReplacedAt(TabStripModel* tab_strip_model,
 120                              content::WebContents* old_contents,
 121                              content::WebContents* new_contents,
 122                              int index) OVERRIDE;
 123   virtual void TabStripModelDeleted() OVERRIDE;
 124
 125   // Overridden from content::NotificationObserver:
 126   virtual void Observe(int type,
 127                        const content::NotificationSource& source,
 128                        const content::NotificationDetails& details) OVERRIDE;
 129
 130   // Getters.
 131   Browser* browser() const { return browser_; }
 132
 133   BookmarkSubMenuModel* bookmark_sub_menu_model() const {
 134     return bookmark_sub_menu_model_.get();
 135   }
 136
 137   // Calculates |zoom_label_| in response to a zoom change.
 138   void UpdateZoomControls();
 139
 140  private:
 141   // Testing constructor used for mocking.
 142   friend class ::MockWrenchMenuModel;
 143   WrenchMenuModel();
 144
 145   void Build(bool is_new_menu);
 146
 147   void AddGlobalErrorMenuItems();
 148
 149   // Appends everything needed for the clipboard menu: a menu break, the
 150   // clipboard menu content and the finalizing menu break. If the last break
 151   // is not needed it can be suppressed by setting |new_menu|
 152   // to false.
 153   void CreateCutCopyPasteMenu(bool new_menu);
 154
 155   // Appends everything needed for the zoom menu: a menu break, then the zoom
 156   // menu content and then another menu break. If the new menu type is used,
 157   // |new_menu| should be set to true.
 158   void CreateZoomMenu(bool new_menu);
 159
 160   void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change);
 161
 162   bool ShouldShowNewIncognitoWindowMenuItem();
 163   bool ShouldShowNewWindowMenuItem();
 164
 165   // Models for the special menu items with buttons.
 166   scoped_ptr<ui::ButtonMenuItemModel> edit_menu_item_model_;
 167   scoped_ptr<ui::ButtonMenuItemModel> zoom_menu_item_model_;
 168
 169   // Label of the zoom label in the zoom menu item.
 170   base::string16 zoom_label_;
 171
 172   // Tools menu.
 173   scoped_ptr<ToolsMenuModel> tools_menu_model_;
 174
 175   // Bookmark submenu.
 176   scoped_ptr<BookmarkSubMenuModel> bookmark_sub_menu_model_;
 177
 178   // Recent Tabs submenu.
 179   scoped_ptr<RecentTabsSubMenuModel> recent_tabs_sub_menu_model_;
 180
 181   ui::AcceleratorProvider* provider_;  // weak
 182
 183   Browser* browser_;  // weak
 184   TabStripModel* tab_strip_model_; // weak
 185
 186   scoped_ptr<content::HostZoomMap::Subscription> zoom_subscription_;
 187   content::NotificationRegistrar registrar_;
 188
 189   DISALLOW_COPY_AND_ASSIGN(WrenchMenuModel);
 190 };
 191
 192 #endif  // CHROME_BROWSER_UI_TOOLBAR_WRENCH_MENU_MODEL_H_