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1 // Copyright 2014 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_LOGIN_SCREENS_HID_DETECTION_SCREEN_ACTOR_H_ | |
6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_ACTOR_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/callback_forward.h" | |
11 | |
12 namespace chromeos { | |
13 | |
14 // Interface between HID detection screen and its representation. | |
15 // Note, do not forget to call OnActorDestroyed in the dtor. | |
16 class HIDDetectionScreenActor { | |
17 public: | |
18 // Allows us to get info from HID detection screen that we need. | |
19 class Delegate { | |
20 public: | |
21 virtual ~Delegate() {} | |
22 | |
23 // Called when screen is exited. | |
24 virtual void OnExit() = 0; | |
25 | |
26 // This method is called, when actor is being destroyed. Note, if Delegate | |
27 // is destroyed earlier then it has to call SetDelegate(NULL). | |
28 virtual void OnActorDestroyed(HIDDetectionScreenActor* actor) = 0; | |
29 }; | |
30 | |
31 virtual ~HIDDetectionScreenActor() {} | |
32 | |
33 virtual void Show() = 0; | |
34 virtual void Hide() = 0; | |
35 virtual void SetDelegate(Delegate* delegate) = 0; | |
36 | |
37 // Checks if we should show the screen or enough devices already present. | |
38 // Calls corresponding set of actions based on the bool result. | |
39 virtual void CheckIsScreenRequired( | |
40 const base::Callback<void(bool)>& on_check_done) = 0; | |
41 }; | |
42 | |
43 } // namespace chromeos | |
44 | |
45 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_ACTOR_H_ | |
46 | |
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