update_screen_actor.h revision 116680a4aac90f2aa7413d9095a592090648e557 
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/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
26    // Force cancel update.
27    virtual void CancelUpdate() = 0;
28
29    // Called prior to destroying |actor|.
30    virtual void OnActorDestroyed(UpdateScreenActor* actor) = 0;
31
32    // Called any time a new network connect request occurs.
33    virtual void OnConnectToNetworkRequested() = 0;
34  };
35
36  virtual ~UpdateScreenActor() {}
37
38  // Sets screen this actor belongs to.
39  virtual void SetDelegate(Delegate* screen) = 0;
40
41  // Shows the screen.
42  virtual void Show() = 0;
43
44  // Hides the screen.
45  virtual void Hide() = 0;
46
47  virtual void PrepareToShow() = 0;
48
49  // Shows manual reboot info message.
50  virtual void ShowManualRebootInfo() = 0;
51
52  // Sets current progress in percents.
53  virtual void SetProgress(int progress) = 0;
54
55  // Shows estimated time left message.
56  virtual void ShowEstimatedTimeLeft(bool visible) = 0;
57
58  // Sets current estimation for time left in the downloading stage.
59  virtual void SetEstimatedTimeLeft(const base::TimeDelta& time) = 0;
60
61  // Shows message under progress bar.
62  virtual void ShowProgressMessage(bool visible) = 0;
63
64  // Sets message under progress bar.
65  virtual void SetProgressMessage(ProgressMessage message) = 0;
66
67  // Shows screen curtains.
68  virtual void ShowCurtain(bool visible) = 0;
69};
70
71}  // namespace chromeos
72
73#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
74