update_screen.h revision 201ade2fbba22bfb27ae029f4d23fca6ded109a0 
1// Copyright (c) 2010 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_UPDATE_SCREEN_H_
6#define CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_SCREEN_H_
7#pragma once
8
9#include "base/timer.h"
10#include "chrome/browser/chromeos/cros/update_library.h"
11#include "chrome/browser/chromeos/login/update_view.h"
12#include "chrome/browser/chromeos/login/view_screen.h"
13
14namespace chromeos {
15
16class UpdateController {
17 public:
18  // Starts update.
19  virtual void StartUpdate() = 0;
20  // Cancels pending update without error.
21  virtual void CancelUpdate() = 0;
22};
23
24class UpdateScreen: public DefaultViewScreen<chromeos::UpdateView>,
25                    public UpdateLibrary::Observer,
26                    public UpdateController {
27 public:
28  explicit UpdateScreen(WizardScreenDelegate* delegate);
29  virtual ~UpdateScreen();
30
31  // UpdateLibrary::Observer implementation:
32  virtual void UpdateStatusChanged(UpdateLibrary* library);
33
34  // Overridden from UpdateController:
35  virtual void StartUpdate();
36  virtual void CancelUpdate();
37
38  // Reports update results to the ScreenObserver.
39  // |forced| should be set to true when calling this method and update status
40  // is not one of UPDATE_STATUS_IDLE, UPDATE_STATUS_ERROR,
41  // UPDATE_STATUS_REPORTING_ERROR_EVENT.
42  virtual void ExitUpdate(bool forced);
43
44  // Reboot check delay get/set, in seconds.
45  int reboot_check_delay() const { return reboot_check_delay_; }
46  void SetRebootCheckDelay(int seconds);
47
48  // Returns true if there is critical system update that requires installation
49  // and immediate reboot.
50  bool HasCriticalUpdate();
51
52  // Set flag to treat all updates as critical (for test purpose mainly).
53  // Default value is false.
54  void SetAllUpdatesCritical(bool is_critical);
55
56 private:
57  // Timer notification handlers.
58  void OnWaitForRebootTimeElapsed();
59
60  // Timer for the interval to wait for the reboot.
61  // If reboot didn't happen - ask user to reboot manually.
62  base::OneShotTimer<UpdateScreen> reboot_timer_;
63
64  // True if in the process of checking for update.
65  bool checking_for_update_;
66
67  // Time in seconds after which we decide that the device has not rebooted
68  // automatically. If reboot didn't happen during this interval, ask user to
69  // reboot device manually.
70  int reboot_check_delay_;
71
72  // Flag that is used to detect when update download has just started.
73  bool is_downloading_update_;
74
75  // Is all updates critical? If true, update deadlines are ignored.
76  bool is_all_updates_critical_;
77
78  DISALLOW_COPY_AND_ASSIGN(UpdateScreen);
79};
80
81}  // namespace chromeos
82
83#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_SCREEN_H_
84