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| 1 // Copyright 2014 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 #include "ash/ash_export.h" | |
| 6 | |
| 7 #include "ash/ime/input_method_menu_item.h" | |
| 8 #include "base/observer_list.h" | |
| 9 | |
| 10 #ifndef ASH_IME_INPUT_METHOD_MENU_MANAGER_H_ | |
| 11 #define ASH_IME_INPUT_METHOD_MENU_MANAGER_H_ | |
| 12 | |
| 13 template<typename Type> struct DefaultSingletonTraits; | |
| 14 | |
| 15 namespace ash { | |
| 16 namespace ime { | |
| 17 | |
| 18 class ASH_EXPORT InputMethodMenuManager { | |
| 19 public: | |
| 20 class Observer { | |
| 21 public: | |
| 22 virtual ~Observer() {} | |
| 23 | |
| 24 // Called when the list of menu items is changed. | |
| 25 virtual void InputMethodMenuItemChanged( | |
| 26 InputMethodMenuManager* manager) = 0; | |
| 27 }; | |
| 28 | |
| 29 ~InputMethodMenuManager(); | |
| 30 | |
| 31 void AddObserver(Observer* observer); | |
| 32 void RemoveObserver(Observer* observer); | |
| 33 | |
| 34 // Obtains the singleton instance. | |
| 35 static InputMethodMenuManager* GetInstance(); | |
| 36 | |
| 37 // Sets the list of input method menu items. The list could be empty(). | |
| 38 void SetCurrentInputMethodMenuItemList( | |
| 39 const InputMethodMenuItemList& menu_list); | |
| 40 | |
| 41 // Gets the list of input method menu items. The list could be empty(). | |
| 42 InputMethodMenuItemList GetCurrentInputMethodMenuItemList() const; | |
| 43 | |
| 44 // True if the key exists in the menu_list_. | |
| 45 bool HasInputMethodMenuItemForKey(const std::string& key) const; | |
| 46 | |
| 47 private: | |
| 48 InputMethodMenuManager(); | |
| 49 | |
| 50 // For Singleton to be able to construct an instance. | |
| 51 friend struct DefaultSingletonTraits<InputMethodMenuManager>; | |
| 52 | |
| 53 // Menu item list of the input method. This is set by extension IMEs. | |
| 54 InputMethodMenuItemList menu_list_; | |
| 55 | |
| 56 // Observers who will be notified when menu changes. | |
| 57 ObserverList<Observer> observers_; | |
| 58 | |
| 59 DISALLOW_COPY_AND_ASSIGN(InputMethodMenuManager); | |
| 60 }; | |
| 61 | |
| 62 } // namespace ime | |
| 63 } // namespace ash | |
| 64 | |
| 65 #endif // ASH_IME_INPUT_METHOD_MENU_MANAGER_H_ | |
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