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_CHROMEOS_INPUT_METHOD_INPUT_METHOD_PERSISTENCE_H_ 6 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_PERSISTENCE_H_ 7 8 #include <string> 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "chromeos/ime/input_method_manager.h" 13 14 namespace chromeos { 15 namespace input_method { 16 17 // Observes input method and session state changes, and persists input method 18 // changes to the BrowserProcess local state or to the user preferences, 19 // according to the session state. 20 class InputMethodPersistence : public InputMethodManager::Observer { 21 public: 22 // Constructs an instance that will observe input method changes on the 23 // provided InputMethodManager. The client is responsible for calling 24 // OnSessionStateChange whenever the InputMethodManager::State changes. 25 explicit InputMethodPersistence(InputMethodManager* input_method_manager); 26 virtual ~InputMethodPersistence(); 27 28 // Receives notification of session state changes. 29 void OnSessionStateChange(InputMethodManager::State new_state); 30 31 // InputMethodManager::Observer overrides. 32 virtual void InputMethodChanged(InputMethodManager* manager, 33 bool show_message) OVERRIDE; 34 35 private: 36 InputMethodManager* input_method_manager_; 37 InputMethodManager::State state_; 38 DISALLOW_COPY_AND_ASSIGN(InputMethodPersistence); 39 }; 40 41 } // namespace input_method 42 } // namespace chromeos 43 44 #endif // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_PERSISTENCE_H_ 45
