OLD | NEW |
| (Empty) |
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 ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_ | |
6 #define ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "ash/common/shell_observer.h" | |
12 #include "base/callback.h" | |
13 #include "base/macros.h" | |
14 #include "base/time/time.h" | |
15 #include "base/timer/timer.h" | |
16 | |
17 namespace base { | |
18 class TickClock; | |
19 } | |
20 | |
21 namespace ash { | |
22 | |
23 class LogoutConfirmationDialog; | |
24 | |
25 // This class shows a dialog asking the user to confirm or deny logout and | |
26 // terminates the session if the user either confirms or allows the countdown | |
27 // shown in the dialog to expire. | |
28 // It is guaranteed that no more than one confirmation dialog will be visible at | |
29 // any given time. If there are multiple requests to show a confirmation dialog | |
30 // at the same time, the dialog whose countdown expires first is shown. | |
31 class ASH_EXPORT LogoutConfirmationController : public ShellObserver { | |
32 public: | |
33 // The |logout_closure| must be safe to call as long as |this| is alive. | |
34 explicit LogoutConfirmationController(const base::Closure& logout_closure); | |
35 ~LogoutConfirmationController() override; | |
36 | |
37 base::TickClock* clock() const { return clock_.get(); } | |
38 | |
39 // Shows a LogoutConfirmationDialog. If a confirmation dialog is already being | |
40 // shown, it is closed and a new one opened if |logout_time| is earlier than | |
41 // the current dialog's |logout_time_|. | |
42 void ConfirmLogout(base::TimeTicks logout_time); | |
43 | |
44 void SetClockForTesting(std::unique_ptr<base::TickClock> clock); | |
45 | |
46 // ShellObserver: | |
47 void OnLockStateChanged(bool locked) override; | |
48 | |
49 // Called by the |dialog_| when the user confirms logout. | |
50 void OnLogoutConfirmed(); | |
51 | |
52 // Called by the |dialog_| when it is closed. | |
53 void OnDialogClosed(); | |
54 | |
55 LogoutConfirmationDialog* dialog_for_testing() const { return dialog_; } | |
56 | |
57 private: | |
58 std::unique_ptr<base::TickClock> clock_; | |
59 base::Closure logout_closure_; | |
60 | |
61 base::TimeTicks logout_time_; | |
62 LogoutConfirmationDialog* dialog_; // Owned by the Views hierarchy. | |
63 base::Timer logout_timer_; | |
64 | |
65 DISALLOW_COPY_AND_ASSIGN(LogoutConfirmationController); | |
66 }; | |
67 | |
68 } // namespace ash | |
69 | |
70 #endif // ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_ | |
OLD | NEW |