Index: trunk/src/chrome/browser/chromeos/policy/recommendation_restorer.cc |
=================================================================== |
--- trunk/src/chrome/browser/chromeos/policy/recommendation_restorer.cc (revision 207797) |
+++ trunk/src/chrome/browser/chromeos/policy/recommendation_restorer.cc (working copy) |
@@ -1,144 +0,0 @@ |
-// 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. |
- |
-#include "chrome/browser/chromeos/policy/recommendation_restorer.h" |
- |
-#include "ash/shell.h" |
-#include "ash/wm/user_activity_detector.h" |
-#include "base/bind.h" |
-#include "base/bind_helpers.h" |
-#include "base/location.h" |
-#include "base/logging.h" |
-#include "base/prefs/pref_service.h" |
-#include "base/time.h" |
-#include "base/values.h" |
-#include "chrome/browser/chromeos/profiles/profile_helper.h" |
-#include "chrome/browser/profiles/profile.h" |
-#include "chrome/common/chrome_notification_types.h" |
-#include "chrome/common/pref_names.h" |
-#include "content/public/browser/notification_details.h" |
-#include "content/public/browser/notification_service.h" |
-#include "content/public/browser/notification_source.h" |
- |
-namespace policy { |
- |
-namespace { |
-// The amount of idle time after which recommended values are restored. |
-const int kRestoreDelayInMs = 60 * 1000; // 1 minute. |
-} // namespace |
- |
-RecommendationRestorer::RecommendationRestorer(Profile* profile) |
- : logged_in_(false) { |
- if (!chromeos::ProfileHelper::IsSigninProfile(profile)) |
- return; |
- |
- pref_change_registrar_.Init(profile->GetPrefs()); |
- pref_change_registrar_.Add(prefs::kLargeCursorEnabled, |
- base::Bind(&RecommendationRestorer::Restore, |
- base::Unretained(this), true)); |
- pref_change_registrar_.Add(prefs::kSpokenFeedbackEnabled, |
- base::Bind(&RecommendationRestorer::Restore, |
- base::Unretained(this), true)); |
- pref_change_registrar_.Add(prefs::kHighContrastEnabled, |
- base::Bind(&RecommendationRestorer::Restore, |
- base::Unretained(this), true)); |
- pref_change_registrar_.Add(prefs::kScreenMagnifierEnabled, |
- base::Bind(&RecommendationRestorer::Restore, |
- base::Unretained(this), true)); |
- pref_change_registrar_.Add(prefs::kScreenMagnifierType, |
- base::Bind(&RecommendationRestorer::Restore, |
- base::Unretained(this), true)); |
- |
- notification_registrar_.Add(this, chrome::NOTIFICATION_LOGIN_USER_CHANGED, |
- content::NotificationService::AllSources()); |
- |
- RestoreAll(); |
-} |
- |
-RecommendationRestorer::~RecommendationRestorer() { |
-} |
- |
-void RecommendationRestorer::Shutdown() { |
- StopTimer(); |
- pref_change_registrar_.RemoveAll(); |
- notification_registrar_.RemoveAll(); |
-} |
- |
-void RecommendationRestorer::Observe( |
- int type, |
- const content::NotificationSource& source, |
- const content::NotificationDetails& details) { |
- if (type == chrome::NOTIFICATION_LOGIN_USER_CHANGED) { |
- logged_in_ = true; |
- notification_registrar_.RemoveAll(); |
- StopTimer(); |
- RestoreAll(); |
- } else { |
- NOTREACHED(); |
- } |
-} |
- |
-void RecommendationRestorer::OnUserActivity() { |
- if (restore_timer_.IsRunning()) |
- restore_timer_.Reset(); |
-} |
- |
-void RecommendationRestorer::Restore(bool allow_delay, |
- const std::string& pref_name) { |
- const PrefService::Preference* pref = |
- pref_change_registrar_.prefs()->FindPreference(pref_name.c_str()); |
- if (!pref) { |
- NOTREACHED(); |
- return; |
- } |
- |
- if (!pref->GetRecommendedValue() || !pref->HasUserSetting()) |
- return; |
- |
- if (!logged_in_ && allow_delay) |
- StartTimer(); |
- else |
- pref_change_registrar_.prefs()->ClearPref(pref->name().c_str()); |
-} |
- |
-void RecommendationRestorer::RestoreAll() { |
- Restore(false, prefs::kLargeCursorEnabled); |
- Restore(false, prefs::kSpokenFeedbackEnabled); |
- Restore(false, prefs::kHighContrastEnabled); |
- Restore(false, prefs::kScreenMagnifierEnabled); |
- Restore(false, prefs::kScreenMagnifierType); |
-} |
- |
-void RecommendationRestorer::StartTimer() { |
- // Listen for user activity so that the timer can be reset while the user is |
- // active, causing it to fire only when the user remains idle for |
- // |kRestoreDelayInMs|. |
- if (ash::Shell::HasInstance()) { |
- ash::UserActivityDetector* user_activity_detector = |
- ash::Shell::GetInstance()->user_activity_detector(); |
- if (!user_activity_detector->HasObserver(this)) |
- user_activity_detector->AddObserver(this); |
- } |
- |
- // There should be a separate timer for each pref. However, in the common |
- // case of the user changing settings, a single timer is sufficient. This is |
- // because a change initiated by the user implies user activity, so that even |
- // if there was a separate timer per pref, they would all be reset at that |
- // point, causing them to fire at exactly the same time. In the much rarer |
- // case of a recommended value changing, a single timer is a close |
- // approximation of the behavior that would be obtained by resetting the timer |
- // for the affected pref only. |
- restore_timer_.Start(FROM_HERE, |
- base::TimeDelta::FromMilliseconds(kRestoreDelayInMs), |
- base::Bind(&RecommendationRestorer::RestoreAll, |
- base::Unretained(this))); |
-} |
- |
-void RecommendationRestorer::StopTimer() { |
- restore_timer_.Stop(); |
- if (ash::Shell::HasInstance()) |
- ash::Shell::GetInstance()->user_activity_detector()->RemoveObserver(this); |
-} |
- |
-} // namespace policy |