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| 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_BROWSER_STATE_MONITOR_H_ | |
| 6 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_BROWSER_STATE_MONITOR_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include <string> | |
| 10 | |
| 11 #include "chrome/browser/chromeos/input_method/input_method_manager.h" | |
| 12 #include "chrome/browser/prefs/pref_member.h" | |
| 13 #include "content/public/browser/notification_observer.h" | |
| 14 #include "content/public/browser/notification_registrar.h" | |
| 15 #include "content/public/browser/notification_types.h" | |
| 16 | |
| 17 namespace chromeos { | |
| 18 namespace input_method { | |
| 19 | |
| 20 // A class which monitors a notification from the browser to keep track of the | |
| 21 // browser state (not logged in, logged in, etc.) and notify the current state | |
| 22 // to the input method manager. The class also updates the appropriate Chrome | |
| 23 // prefs (~/Local\ State or ~/Preferences) depending on the current browser | |
| 24 // state. | |
| 25 class BrowserStateMonitor | |
| 26 : public content::NotificationObserver, | |
| 27 public input_method::InputMethodManager::PreferenceObserver { | |
| 28 public: | |
| 29 explicit BrowserStateMonitor(InputMethodManager* manager); | |
| 30 virtual ~BrowserStateMonitor(); | |
| 31 | |
| 32 protected: | |
| 33 // Updates ~/Local\ State file. protected: for testing. | |
| 34 virtual void UpdateLocalState(const std::string& current_input_method); | |
| 35 // Updates ~/Preferences file. protected: for testing. | |
| 36 virtual void UpdateUserPreferences(const std::string& current_input_method); | |
| 37 | |
| 38 private: | |
| 39 // InputMethodManager::PreferenceObserver implementation. | |
| 40 // TODO(yusukes): On R20, use input_method::InputMethodManager::Observer and | |
| 41 // remove the PreferenceObserver interface from InputMethodManager. | |
| 42 virtual void PreferenceUpdateNeeded( | |
| 43 input_method::InputMethodManager* manager, | |
| 44 const input_method::InputMethodDescriptor& previous_input_method, | |
| 45 const input_method::InputMethodDescriptor& current_input_method) OVERRIDE; | |
| 46 virtual void FirstObserverIsAdded( | |
| 47 input_method::InputMethodManager* manager) OVERRIDE {} | |
| 48 | |
| 49 // content::NotificationObserver overrides: | |
| 50 virtual void Observe(int type, | |
| 51 const content::NotificationSource& source, | |
| 52 const content::NotificationDetails& details) OVERRIDE; | |
| 53 | |
| 54 void SetState(InputMethodManager::State new_state); | |
| 55 void InitializePrefMembers(); | |
| 56 | |
| 57 InputMethodManager* manager_; | |
| 58 InputMethodManager::State state_; | |
| 59 | |
| 60 // Objects for updating the Chrome prefs. | |
| 61 StringPrefMember previous_input_method_pref_; | |
| 62 StringPrefMember current_input_method_pref_; | |
| 63 bool initialized_; | |
| 64 | |
| 65 // This is used to register this object to some browser notifications. | |
| 66 content::NotificationRegistrar notification_registrar_; | |
| 67 | |
| 68 DISALLOW_COPY_AND_ASSIGN(BrowserStateMonitor); | |
| 69 }; | |
| 70 | |
| 71 } // namespace input_method | |
| 72 } // namespace chromeos | |
| 73 | |
| 74 #endif // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_BROWSER_STATE_MONITOR_H_ | |
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Chromium Code Reviews
Issue 9857017:
Revert 128889 - Update IME preferences outside the IME status button when Uber Tray is in use. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/