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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/system/session/logout_confirmation_controller.h" | |
| 6 | |
| 7 #include <utility> | |
| 8 | |
| 9 #include "ash/common/login_status.h" | |
| 10 #include "ash/common/wm_shell.h" | |
| 11 #include "ash/system/session/logout_confirmation_dialog.h" | |
| 12 #include "ash/system/tray/system_tray_delegate.h" | |
| 13 #include "ash/system/tray/system_tray_notifier.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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