It is time.

ui/base/models/button_menu_item_model.h

-// Copyright (c) 2011 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 UI_BASE_MODELS_BUTTON_MENU_ITEM_MODEL_H_
-#define UI_BASE_MODELS_BUTTON_MENU_ITEM_MODEL_H_
-
-#include <vector>
-
-#include "base/strings/string16.h"
-#include "ui/base/ui_base_export.h"
-
-namespace ui {
-
-// A model representing the rows of buttons that should be inserted in a button
-// containing menu item.
-class UI_BASE_EXPORT ButtonMenuItemModel {
- public:
-  // Types of buttons.
-  enum ButtonType {
-    TYPE_SPACE,
-    TYPE_BUTTON,
-    TYPE_BUTTON_LABEL
-  };
-
-  class UI_BASE_EXPORT Delegate {
-   public:
-    // Some command ids have labels that change over time.
-    virtual bool IsItemForCommandIdDynamic(int command_id) const;
-    virtual base::string16 GetLabelForCommandId(int command_id) const;
-
-    // Performs the action associated with the specified command id.
-    virtual void ExecuteCommand(int command_id, int event_flags) = 0;
-    virtual bool IsCommandIdEnabled(int command_id) const;
-    virtual bool DoesCommandIdDismissMenu(int command_id) const;
-
-   protected:
-    virtual ~Delegate() {}
-  };
-
-  ButtonMenuItemModel(int string_id, ButtonMenuItemModel::Delegate* delegate);
-  ~ButtonMenuItemModel();
-
-  // Adds a button that will emit |command_id|. All buttons created through
-  // this method will have the same size, based on the largest button.
-  void AddGroupItemWithStringId(int command_id, int string_id);
-
-  // Adds a button that has an icon instead of a label.
-  void AddItemWithImage(int command_id, int icon_idr);
-
-  // Adds a non-clickable button with a desensitized label that doesn't do
-  // anything. Usually combined with IsItemForCommandIdDynamic() to add
-  // information.
-  void AddButtonLabel(int command_id, int string_id);
-
-  // Adds a small horizontal space.
-  void AddSpace();
-
-  // Returns the number of items for iteration.
-  int GetItemCount() const;
-
-  // Returns what kind of item is at |index|.
-  ButtonType GetTypeAt(int index) const;
-
-  // Changes a position into a command ID.
-  int GetCommandIdAt(int index) const;
-
-  // Whether the label for item |index| changes.
-  bool IsItemDynamicAt(int index) const;
-
-  // Returns the current label value for the button at |index|.
-  base::string16 GetLabelAt(int index) const;
-
-  // If the button at |index| should have an icon instead, returns true and
-  // sets the IDR |icon|.
-  bool GetIconAt(int index, int* icon) const;
-
-  // If the button at |index| should have its size equalized along with all
-  // other items that have their PartOfGroup bit set.
-  bool PartOfGroup(int index) const;
-
-  // Called from implementations.
-  void ActivatedCommand(int command_id);
-
-  // Returns the enabled state of the button at |index|.
-  bool IsEnabledAt(int index) const;
-
-  // Returns whether clicking on the button at |index| dismisses the menu.
-  bool DismissesMenuAt(int index) const;
-
-  // Returns the enabled state of the command specified by |command_id|.
-  bool IsCommandIdEnabled(int command_id) const;
-
-  // Returns whether clicking on |command_id| dismisses the menu.
-  bool DoesCommandIdDismissMenu(int command_id) const;
-
-  const base::string16& label() const { return item_label_; }
-
- private:
-  // The non-clickable label to the left of the buttons.
-  base::string16 item_label_;
-
-  struct Item;
-  std::vector<Item> items_;
-
-  Delegate* delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(ButtonMenuItemModel);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_MODELS_BUTTON_MENU_ITEM_MODEL_H_