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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 #include "ash/common/system/chromeos/session/logout_confirmation_controller.h" | |
6 | |
7 #include <utility> | |
8 | |
9 #include "ash/common/login_status.h" | |
10 #include "ash/common/system/chromeos/session/logout_confirmation_dialog.h" | |
11 #include "ash/common/system/tray/system_tray_delegate.h" | |
12 #include "ash/common/system/tray/system_tray_notifier.h" | |
13 #include "ash/common/wm_shell.h" | |
14 #include "base/location.h" | |
15 #include "base/time/default_tick_clock.h" | |
16 #include "base/time/tick_clock.h" | |
17 #include "ui/views/widget/widget.h" | |
18 | |
19 namespace ash { | |
20 namespace { | |
21 const int kLogoutConfirmationDelayInSeconds = 20; | |
22 } | |
23 | |
24 LogoutConfirmationController::LogoutConfirmationController( | |
25 const base::Closure& logout_closure) | |
26 : clock_(new base::DefaultTickClock), | |
27 logout_closure_(logout_closure), | |
28 dialog_(NULL), | |
29 logout_timer_(false, false) { | |
30 if (WmShell::HasInstance()) { | |
31 WmShell::Get()->AddShellObserver(this); | |
32 WmShell::Get()->system_tray_notifier()->AddLastWindowClosedObserver(this); | |
33 } | |
34 } | |
35 | |
36 LogoutConfirmationController::~LogoutConfirmationController() { | |
37 if (WmShell::HasInstance()) { | |
38 WmShell::Get()->RemoveShellObserver(this); | |
39 WmShell::Get()->system_tray_notifier()->RemoveLastWindowClosedObserver( | |
40 this); | |
41 } | |
42 if (dialog_) | |
43 dialog_->ControllerGone(); | |
44 } | |
45 | |
46 void LogoutConfirmationController::ConfirmLogout(base::TimeTicks logout_time) { | |
47 if (!logout_time_.is_null() && logout_time >= logout_time_) { | |
48 // If a confirmation dialog is already being shown and its countdown expires | |
49 // no later than the |logout_time| requested now, keep the current dialog | |
50 // open. | |
51 return; | |
52 } | |
53 logout_time_ = logout_time; | |
54 | |
55 if (!dialog_) { | |
56 // Show confirmation dialog unless this is a unit test without a Shell. | |
57 if (WmShell::HasInstance()) | |
58 dialog_ = new LogoutConfirmationDialog(this, logout_time_); | |
59 } else { | |
60 dialog_->Update(logout_time_); | |
61 } | |
62 | |
63 logout_timer_.Start(FROM_HERE, logout_time_ - clock_->NowTicks(), | |
64 logout_closure_); | |
65 } | |
66 | |
67 void LogoutConfirmationController::SetClockForTesting( | |
68 std::unique_ptr<base::TickClock> clock) { | |
69 clock_ = std::move(clock); | |
70 } | |
71 | |
72 void LogoutConfirmationController::OnLockStateChanged(bool locked) { | |
73 if (!locked || logout_time_.is_null()) | |
74 return; | |
75 | |
76 // If the screen is locked while a confirmation dialog is being shown, close | |
77 // the dialog. | |
78 logout_time_ = base::TimeTicks(); | |
79 if (dialog_) | |
80 dialog_->GetWidget()->Close(); | |
81 logout_timer_.Stop(); | |
82 } | |
83 | |
84 void LogoutConfirmationController::OnLogoutConfirmed() { | |
85 logout_timer_.Stop(); | |
86 logout_closure_.Run(); | |
87 } | |
88 | |
89 void LogoutConfirmationController::OnDialogClosed() { | |
90 logout_time_ = base::TimeTicks(); | |
91 dialog_ = NULL; | |
92 logout_timer_.Stop(); | |
93 } | |
94 | |
95 void LogoutConfirmationController::OnLastWindowClosed() { | |
96 if (WmShell::Get()->system_tray_delegate()->GetUserLoginStatus() != | |
97 LoginStatus::PUBLIC) { | |
98 return; | |
99 } | |
100 | |
101 // Ask the user to confirm logout if a public session is in progress and the | |
102 // screen is not locked. | |
103 ConfirmLogout( | |
104 base::TimeTicks::Now() + | |
105 base::TimeDelta::FromSeconds(kLogoutConfirmationDelayInSeconds)); | |
106 } | |
107 | |
108 } // namespace ash | |
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