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// 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.
#ifndef CHROME_BROWSER_CHROMEOS_SCREENSAVER_SCREENSAVER_CONTROLLER_H_
#define CHROME_BROWSER_CHROMEOS_SCREENSAVER_SCREENSAVER_CONTROLLER_H_
#include <string>
#include "ash/wm/user_activity_observer.h"
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "base/memory/weak_ptr.h"
#include "base/time.h"
#include "chromeos/dbus/power_manager_client.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
namespace extensions {
class Extension;
}
namespace chromeos {
// This class controls the management of the screensaver extension. It is
// responsible for:
// . Enabling and disabling of the screensaver, along with ensuring that we
// have only one screensaver at a time.
// . Managing the showing and hiding of the current screensaver based on user
// activity.
// . Any power management that may be required while a screensaver is active.
class ScreensaverController : public ash::UserActivityObserver,
public PowerManagerClient::Observer,
public content::NotificationObserver {
public:
ScreensaverController();
virtual ~ScreensaverController();
private:
FRIEND_TEST_ALL_PREFIXES(ScreensaverControllerTest, Basic);
FRIEND_TEST_ALL_PREFIXES(ScreensaverControllerTest, OutOfOrder);
// Overridden from content::NotificationObserver:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Overridden from PowerManagerClient::Observer:
virtual void IdleNotify(int64 threshold) OVERRIDE;
// UserActivityObserver::Observer overrides:
virtual void OnUserActivity() OVERRIDE;
void SetupScreensaver(const std::string& screensaver_extension_id);
void TeardownScreensaver();
void RequestNextIdleNotification();
std::string screensaver_extension_id_;
content::NotificationRegistrar registrar_;
base::TimeDelta threshold_;
base::WeakPtrFactory<ScreensaverController> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ScreensaverController);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_SCREENSAVER_SCREENSAVER_CONTROLLER_H_
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