update_screen_actor.h revision c2e0dbddbe15c98d52c4786dac06cb8952a8ae6d 
1// Copyright (c) 2012 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_UPDATE_SCREEN_ACTOR_H_
6#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
7
8#include "base/time.h"
9
10namespace chromeos {
11
12class UpdateScreenActor {
13 public:
14  // Indices for corresponding info messages during update stage.
15  enum ProgressMessage {
16    PROGRESS_MESSAGE_UPDATE_AVAILABLE = 0,
17    PROGRESS_MESSAGE_INSTALLING_UPDATE,
18    PROGRESS_MESSAGE_VERIFYING,
19    PROGRESS_MESSAGE_FINALIZING
20  };
21
22  class Delegate {
23   public:
24    virtual ~Delegate() {}
25    // Force cancel update.
26    virtual void CancelUpdate() = 0;
27    virtual void OnActorDestroyed(UpdateScreenActor* actor) = 0;
28  };
29
30  virtual ~UpdateScreenActor() {}
31
32  // Sets screen this actor belongs to.
33  virtual void SetDelegate(Delegate* screen) = 0;
34
35  // Shows the screen.
36  virtual void Show() = 0;
37
38  // Hides the screen.
39  virtual void Hide() = 0;
40
41  virtual void PrepareToShow() = 0;
42
43  // Shows manual reboot info message.
44  virtual void ShowManualRebootInfo() = 0;
45
46  // Sets current progress in percents.
47  virtual void SetProgress(int progress) = 0;
48
49  // Shows estimated time left message.
50  virtual void ShowEstimatedTimeLeft(bool visible) = 0;
51
52  // Sets current estimation for time left in the downloading stage.
53  virtual void SetEstimatedTimeLeft(const base::TimeDelta& time) = 0;
54
55  // Shows message under progress bar.
56  virtual void ShowProgressMessage(bool visible) = 0;
57
58  // Sets message under progress bar.
59  virtual void SetProgressMessage(ProgressMessage message) = 0;
60
61  // Shows screen curtains.
62  virtual void ShowCurtain(bool visible) = 0;
63};
64
65}  // namespace chromeos
66
67#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
68