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Unified Diff: chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc

Issue 9455038: Screensaver at login screen. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Review changes. Created 8 years, 10 months ago
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Index: chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
diff --git a/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc b/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c59cfaaf28cc0d874f4562b892fc937f4fe15ce4
--- /dev/null
+++ b/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
@@ -0,0 +1,89 @@
+// Copyright (c) 2012 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/kiosk_mode/kiosk_mode_screensaver.h"
+
+#include "base/lazy_instance.h"
+#include "base/logging.h"
+#include "chrome/browser/chromeos/dbus/dbus_thread_manager.h"
+#include "chrome/browser/chromeos/login/user_manager.h"
+#include "chrome/browser/chromeos/ui/screensaver_extension_dialog.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/public/browser/notification_service.h"
+
+namespace {
+
+// This (along with screensaver location) will change once we have the
+// retail mode enterprise policy set up.
+const int64 kScreensaverIdleTimeout = 60;
+
+} // namespace
+
+namespace chromeos {
+
+KioskModeScreensaver::KioskModeScreensaver() {
+ // We should NOT be created if already logged in.
+ CHECK(!chromeos::UserManager::Get()->user_is_logged_in());
+
+ registrar_.Add(this, chrome::NOTIFICATION_LOGIN_USER_CHANGED,
+ content::NotificationService::AllSources());
+
+ // We will register ourselves now and unregister if a user logs in.
+ chromeos::PowerManagerClient* power_manager =
+ chromeos::DBusThreadManager::Get()->GetPowerManagerClient();
+ if (!power_manager->HasObserver(this))
+ power_manager->AddObserver(this);
+
+ // Register for the next Idle for kScreensaverIdleTimeout event.
+ chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
+ RequestIdleNotification(kScreensaverIdleTimeout * 1000);
+}
+
+KioskModeScreensaver::~KioskModeScreensaver() {
+ chromeos::PowerManagerClient* power_manager =
+ 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
+ if (power_manager->HasObserver(this))
+ power_manager->RemoveObserver(this);
+}
+
+// NotificationObserver overrides:
+void KioskModeScreensaver::Observe(
+ int type,
+ const content::NotificationSource& source,
+ const content::NotificationDetails& details) {
+ DCHECK_EQ(type, chrome::NOTIFICATION_LOGIN_USER_CHANGED);
+ // User logged in, remove our observers, screensaver will be deactivated.
+ chromeos::PowerManagerClient* power_manager =
+ chromeos::DBusThreadManager::Get()->GetPowerManagerClient();
+ if (power_manager->HasObserver(this))
+ power_manager->RemoveObserver(this);
+}
+
+void KioskModeScreensaver::IdleNotify(int64 threshold) {
+ // We're idle, next time we go active, we need to know so we can remove
+ // the logout dialog if it's still up.
+ chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
+ RequestActiveNotification();
+
+ browser::ShowScreensaverDialog();
+}
+
+void KioskModeScreensaver::ActiveNotify() {
+ // Before anything else, close the logout dialog to prevent restart
+ browser::CloseScreensaverDialog();
+
+ // Now that we're active, register a request for notification for
+ // the next time we go idle for kScreensaverIdleTimeout seconds.
+ chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
+ RequestIdleNotification(kScreensaverIdleTimeout * 1000);
+}
+
+static base::LazyInstance<KioskModeScreensaver>
+ g_kiosk_mode_login_observer = LAZY_INSTANCE_INITIALIZER;
+
+void InitKioskModeScreensaver() {
+ g_kiosk_mode_login_observer.Get();
+}
+
+} // namespace chromeos

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