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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 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.h" |
| 6 |
| 7 #include "base/lazy_instance.h" |
| 8 #include "base/logging.h" |
| 9 #include "chrome/browser/chromeos/dbus/dbus_thread_manager.h" |
| 10 #include "chrome/browser/chromeos/login/user_manager.h" |
| 11 #include "chrome/browser/chromeos/ui/screensaver_extension_dialog.h" |
| 12 #include "chrome/common/chrome_notification_types.h" |
| 13 #include "content/public/browser/notification_service.h" |
| 14 |
| 15 namespace { |
| 16 |
| 17 // This (along with screensaver location) will change once we have the |
| 18 // retail mode enterprise policy set up. |
| 19 const int64 kScreensaverIdleTimeout = 60; |
| 20 |
| 21 } // namespace |
| 22 |
| 23 namespace chromeos { |
| 24 |
| 25 KioskModeScreensaver::KioskModeScreensaver() { |
| 26 // We should NOT be created if already logged in. |
| 27 CHECK(!chromeos::UserManager::Get()->user_is_logged_in()); |
| 28 |
| 29 registrar_.Add(this, chrome::NOTIFICATION_LOGIN_USER_CHANGED, |
| 30 content::NotificationService::AllSources()); |
| 31 |
| 32 // We will register ourselves now and unregister if a user logs in. |
| 33 chromeos::PowerManagerClient* power_manager = |
| 34 chromeos::DBusThreadManager::Get()->GetPowerManagerClient(); |
| 35 if (!power_manager->HasObserver(this)) |
| 36 power_manager->AddObserver(this); |
| 37 |
| 38 // Register for the next Idle for kScreensaverIdleTimeout event. |
| 39 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()-> |
| 40 RequestIdleNotification(kScreensaverIdleTimeout * 1000); |
| 41 } |
| 42 |
| 43 KioskModeScreensaver::~KioskModeScreensaver() { |
| 44 chromeos::PowerManagerClient* power_manager = |
| 45 chromeos::DBusThreadManager::Get()->GetPowerManagerClient(); |
| 46 if (power_manager->HasObserver(this)) |
| 47 power_manager->RemoveObserver(this); |
| 48 } |
| 49 |
| 50 // NotificationObserver overrides: |
| 51 void KioskModeScreensaver::Observe( |
| 52 int type, |
| 53 const content::NotificationSource& source, |
| 54 const content::NotificationDetails& details) { |
| 55 DCHECK_EQ(type, chrome::NOTIFICATION_LOGIN_USER_CHANGED); |
| 56 // User logged in, remove our observers, screensaver will be deactivated. |
| 57 chromeos::PowerManagerClient* power_manager = |
| 58 chromeos::DBusThreadManager::Get()->GetPowerManagerClient(); |
| 59 if (power_manager->HasObserver(this)) |
| 60 power_manager->RemoveObserver(this); |
| 61 |
| 62 ShutdownKioskModeScreensaver(); |
| 63 } |
| 64 |
| 65 void KioskModeScreensaver::IdleNotify(int64 threshold) { |
| 66 // We're idle, next time we go active, we need to know so we can remove |
| 67 // the logout dialog if it's still up. |
| 68 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()-> |
| 69 RequestActiveNotification(); |
| 70 |
| 71 browser::ShowScreensaverDialog(); |
| 72 } |
| 73 |
| 74 void KioskModeScreensaver::ActiveNotify() { |
| 75 // Before anything else, close the logout dialog to prevent restart |
| 76 browser::CloseScreensaverDialog(); |
| 77 |
| 78 // Now that we're active, register a request for notification for |
| 79 // the next time we go idle for kScreensaverIdleTimeout seconds. |
| 80 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()-> |
| 81 RequestIdleNotification(kScreensaverIdleTimeout * 1000); |
| 82 } |
| 83 |
| 84 static KioskModeScreensaver* g_kiosk_mode_screensaver = NULL; |
| 85 |
| 86 void InitializeKioskModeScreensaver() { |
| 87 if (g_kiosk_mode_screensaver) { |
| 88 LOG(WARNING) << "Screensaver was already initialized"; |
| 89 return; |
| 90 } |
| 91 |
| 92 g_kiosk_mode_screensaver = new KioskModeScreensaver(); |
| 93 } |
| 94 |
| 95 void ShutdownKioskModeScreensaver() { |
| 96 if (g_kiosk_mode_screensaver) { |
| 97 LOG(WARNING) << "Screensaver shutdown called when uninitialized."; |
| 98 return; |
| 99 } |
| 100 |
| 101 delete g_kiosk_mode_screensaver; |
| 102 g_kiosk_mode_screensaver = NULL; |
| 103 } |
| 104 |
| 105 } // namespace chromeos |
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