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1 // Copyright (c) 2011 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 #ifndef CHROME_BROWSER_CHROMEOS_CROS_SCREEN_LOCK_LIBRARY_H_ | |
6 #define CHROME_BROWSER_CHROMEOS_CROS_SCREEN_LOCK_LIBRARY_H_ | |
7 #pragma once | |
8 | |
9 namespace chromeos { | |
10 | |
11 // This interface handles the interaction with the ChromeOS screen lock API. | |
12 class ScreenLockLibrary { | |
13 public: | |
14 class Observer { | |
15 public: | |
16 virtual ~Observer() {} | |
17 | |
18 virtual void LockScreen(ScreenLockLibrary* obj) = 0; | |
19 virtual void UnlockScreen(ScreenLockLibrary* obj) = 0; | |
20 virtual void UnlockScreenFailed(ScreenLockLibrary* obj) = 0; | |
21 }; | |
22 | |
23 virtual ~ScreenLockLibrary() {} | |
24 | |
25 virtual void Init() = 0; | |
26 | |
27 virtual void AddObserver(Observer* observer) = 0; | |
28 virtual void RemoveObserver(Observer* observer) = 0; | |
29 | |
30 // Notifies PowerManager that a user requested to lock the screen. | |
31 virtual void NotifyScreenLockRequested() = 0; | |
32 | |
33 // Notifies PowerManager that screen lock has been completed. | |
34 virtual void NotifyScreenLockCompleted() = 0; | |
35 | |
36 // Notifies PowerManager that a user unlocked the screen. | |
37 virtual void NotifyScreenUnlockRequested() = 0; | |
38 | |
39 // Notifies PowerManager that screen is unlocked. | |
40 virtual void NotifyScreenUnlockCompleted() = 0; | |
41 | |
42 // Factory function, creates a new instance and returns ownership. | |
43 // For normal usage, access the singleton via CrosLibrary::Get(). | |
44 static ScreenLockLibrary* GetImpl(bool stub); | |
45 }; | |
46 | |
47 } // namespace chromeos | |
48 | |
49 #endif // CHROME_BROWSER_CHROMEOS_CROS_SCREEN_LOCK_LIBRARY_H_ | |
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