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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(); | |
xiyuan
2012/02/27 18:26:30
When will this dtor be called? DBusThreadManager w
rkc
2012/02/27 22:24:43
As discussed, made changes to add a shutdown funct
| |
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 | |
63 void KioskModeScreensaver::IdleNotify(int64 threshold) { | |
64 // We're idle, next time we go active, we need to know so we can remove | |
65 // the logout dialog if it's still up. | |
66 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()-> | |
67 RequestActiveNotification(); | |
68 | |
69 browser::ShowScreensaverDialog(); | |
70 } | |
71 | |
72 void KioskModeScreensaver::ActiveNotify() { | |
73 // Before anything else, close the logout dialog to prevent restart | |
74 browser::CloseScreensaverDialog(); | |
75 | |
76 // Now that we're active, register a request for notification for | |
77 // the next time we go idle for kScreensaverIdleTimeout seconds. | |
78 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()-> | |
79 RequestIdleNotification(kScreensaverIdleTimeout * 1000); | |
80 } | |
81 | |
82 static base::LazyInstance<KioskModeScreensaver> | |
83 g_kiosk_mode_login_observer = LAZY_INSTANCE_INITIALIZER; | |
84 | |
85 void InitKioskModeScreensaver() { | |
86 g_kiosk_mode_login_observer.Get(); | |
87 } | |
88 | |
89 } // namespace chromeos | |
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