Index: views/controls/menu/simple_menu_model.h |
=================================================================== |
--- views/controls/menu/simple_menu_model.h (revision 0) |
+++ views/controls/menu/simple_menu_model.h (revision 0) |
@@ -0,0 +1,93 @@ |
+// 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 CONTROLS_MENU_VIEWS_SIMPLE_MENU_MODEL_H_ |
+#define CONTROLS_MENU_VIEWS_SIMPLE_MENU_MODEL_H_ |
+ |
+#include <vector> |
+ |
+#include "views/controls/menu/menu_2.h" |
+ |
+namespace views { |
+ |
+// A simple Menu2Model implementation with an imperative API for adding menu |
+// items. This makes it easy to construct fixed menus. Menus populated by |
+// dynamic data sources may be better off implementing Menu2Model directly. |
+// The breadth of Menu2Model is not exposed through this API. |
+class SimpleMenuModel : public Menu2Model { |
+ public: |
+ class Delegate { |
+ public: |
+ // Methods for determining the state of specific command ids. |
+ virtual bool IsCommandIdChecked(int command_id) const = 0; |
+ virtual bool IsCommandIdEnabled(int command_id) const = 0; |
+ |
+ // Gets the accelerator for the specified command id. Returns true if the |
+ // command id has a valid accelerator, false otherwise. |
+ virtual bool GetAcceleratorForCommandId( |
+ int command_id, |
+ views::Accelerator* accelerator) = 0; |
+ |
+ // Some command ids have labels that change over time. |
+ virtual bool IsLabelForCommandIdDynamic(int command_id) const = 0; |
+ virtual std::wstring GetLabelForCommandId(int command_id) const = 0; |
+ }; |
+ |
+ // The Delegate can be NULL, though if it is items can't be checked or |
+ // disabled. |
+ explicit SimpleMenuModel(Delegate* delegate); |
+ virtual ~SimpleMenuModel(); |
+ |
+ // Methods for adding items to the model. |
+ void AddItem(int command_id, const std::wstring& label); |
+ void AddItemWithStringId(int command_id, int string_id); |
+ void AddSeparator(); |
+ void AddCheckItem(int command_id, const std::wstring& label); |
+ void AddCheckItemWithStringId(int command_id, int string_id); |
+ void AddRadioItem(int command_id, const std::wstring& label, int group_id); |
+ void AddRadioItemWithStringId(int command_id, int string_id, int group_id); |
+ void AddSubMenu(const std::wstring& label, Menu2Model* model); |
+ void AddSubMenuWithStringId(int string_id, Menu2Model* model); |
+ |
+ // Overridden from Menu2Model: |
+ virtual bool HasIcons() const; |
+ virtual int GetItemCount() const; |
+ virtual ItemType GetTypeAt(int index) const; |
+ virtual int GetCommandIdAt(int index) const; |
+ virtual std::wstring GetLabelAt(int index) const; |
+ virtual bool IsLabelDynamicAt(int index) const; |
+ virtual bool GetAcceleratorAt(int index, |
+ views::Accelerator* accelerator) const; |
+ virtual bool IsItemCheckedAt(int index) const; |
+ virtual int GetGroupIdAt(int index) const; |
+ virtual bool GetIconAt(int index, SkBitmap* icon) const; |
+ virtual bool IsEnabledAt(int index) const; |
+ virtual Menu2Model* GetSubmenuModelAt(int index) const; |
+ |
+ protected: |
+ // Some variants of this model (SystemMenuModel) relies on items to be |
+ // inserted backwards. This is counter-intuitive for the API, so rather than |
+ // forcing customers to insert things backwards, we return the indices |
+ // backwards instead. That's what this method is for. By default, it just |
+ // returns what it's passed. |
+ virtual int FlipIndex(int index) const { return index; } |
+ |
+ private: |
+ struct Item { |
+ int command_id; |
+ std::wstring label; |
+ ItemType type; |
+ int group_id; |
+ Menu2Model* submenu; |
+ }; |
+ std::vector<Item> items_; |
+ |
+ Delegate* delegate_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(SimpleMenuModel); |
+}; |
+ |
+} // namespace views |
+ |
+#endif // CONTROLS_MENU_VIEWS_SIMPLE_MENU_MODEL_H_ |