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// Copyright (c) 2011 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_CROS_SCREEN_LOCK_LIBRARY_H_
#define CHROME_BROWSER_CHROMEOS_CROS_SCREEN_LOCK_LIBRARY_H_
#pragma once
namespace chromeos {
// This interface handles the interaction with the ChromeOS screen lock API.
class ScreenLockLibrary {
public:
class Observer {
public:
virtual ~Observer() {}
virtual void LockScreen(ScreenLockLibrary* obj) = 0;
virtual void UnlockScreen(ScreenLockLibrary* obj) = 0;
virtual void UnlockScreenFailed(ScreenLockLibrary* obj) = 0;
};
virtual ~ScreenLockLibrary() {}
virtual void Init() = 0;
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
// Notifies PowerManager that a user requested to lock the screen.
virtual void NotifyScreenLockRequested() = 0;
// Notifies PowerManager that screen lock has been completed.
virtual void NotifyScreenLockCompleted() = 0;
// Notifies PowerManager that a user unlocked the screen.
virtual void NotifyScreenUnlockRequested() = 0;
// Notifies PowerManager that screen is unlocked.
virtual void NotifyScreenUnlockCompleted() = 0;
// Factory function, creates a new instance and returns ownership.
// For normal usage, access the singleton via CrosLibrary::Get().
static ScreenLockLibrary* GetImpl(bool stub);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_CROS_SCREEN_LOCK_LIBRARY_H_
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