| // Copyright 2013 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 CHROME_BROWSER_CHROMEOS_POLICY_RECOMMENDATION_RESTORER_H_ |
| #define CHROME_BROWSER_CHROMEOS_POLICY_RECOMMENDATION_RESTORER_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "base/prefs/pref_change_registrar.h" |
| #include "base/timer/timer.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "ui/wm/core/user_activity_observer.h" |
| |
| class Profile; |
| |
| namespace policy { |
| |
| // Observes a set of prefs in the login profile. If any of the prefs has a |
| // recommended value, its user setting is cleared so that the recommendation can |
| // take effect. This happens immediately when the login screen is shown, when |
| // a session is being started and whenever recommended values change during a |
| // user session. On the login screen, user settings are cleared when the user |
| // becomes idle for one minute. |
| class RecommendationRestorer : public KeyedService, |
| public content::NotificationObserver, |
| public wm::UserActivityObserver { |
| public: |
| explicit RecommendationRestorer(Profile* profile); |
| virtual ~RecommendationRestorer(); |
| |
| // KeyedService: |
| virtual void Shutdown() OVERRIDE; |
| |
| // content::NotificationObserver: |
| virtual void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) OVERRIDE; |
| |
| // wm::UserActivityObserver: |
| virtual void OnUserActivity(const ui::Event* event) OVERRIDE; |
| |
| // If a recommended value and a user setting exist for |pref_name|, clears the |
| // user setting so that the recommended value can take effect. If |
| // |allow_delay| is |true| and the login screen is being shown, a timer is |
| // started that will clear the setting when the user becomes idle for one |
| // minute. Otherwise, the setting is cleared immediately. |
| void Restore(bool allow_delay, const std::string& pref_name); |
| |
| private: |
| friend class RecommendationRestorerTest; |
| |
| void RestoreAll(); |
| |
| void StartTimer(); |
| void StopTimer(); |
| |
| PrefChangeRegistrar pref_change_registrar_; |
| content::NotificationRegistrar notification_registrar_; |
| |
| bool logged_in_; |
| |
| base::OneShotTimer<RecommendationRestorer> restore_timer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(RecommendationRestorer); |
| }; |
| |
| } // namespace policy |
| |
| #endif // CHROME_BROWSER_CHROMEOS_POLICY_RECOMMENDATION_RESTORER_H_ |