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#include "chrome/browser/chromeos/power/power_button_observer.h" 6 7#include "ash/shell.h" 8#include "ash/system/tray/system_tray_delegate.h" 9#include "ash/system/user/login_status.h" 10#include "ash/wm/power_button_controller.h" 11#include "base/logging.h" 12#include "chrome/browser/chrome_notification_types.h" 13#include "chrome/browser/chromeos/login/lock/screen_locker.h" 14#include "chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h" 15#include "chromeos/dbus/dbus_thread_manager.h" 16#include "content/public/browser/notification_service.h" 17 18namespace ash { 19class LockStateControllerDelegate; 20} 21 22namespace chromeos { 23 24namespace { 25 26ash::user::LoginStatus GetCurrentLoginStatus() { 27 if (!ash::Shell::GetInstance()->system_tray_delegate()) 28 return ash::user::LOGGED_IN_NONE; 29 return ash::Shell::GetInstance()->system_tray_delegate()-> 30 GetUserLoginStatus(); 31} 32 33} // namespace 34 35PowerButtonObserver::PowerButtonObserver() { 36 ash::Shell::GetInstance()->lock_state_controller()-> 37 SetDelegate(scoped_ptr<ash::LockStateControllerDelegate>( 38 new SessionStateControllerDelegateChromeos)); 39 40 registrar_.Add( 41 this, 42 chrome::NOTIFICATION_LOGIN_USER_CHANGED, 43 content::NotificationService::AllSources()); 44 registrar_.Add( 45 this, 46 chrome::NOTIFICATION_APP_TERMINATING, 47 content::NotificationService::AllSources()); 48 registrar_.Add( 49 this, 50 chrome::NOTIFICATION_SCREEN_LOCK_STATE_CHANGED, 51 content::NotificationService::AllSources()); 52 53 DBusThreadManager::Get()->GetPowerManagerClient()->AddObserver(this); 54 DBusThreadManager::Get()->GetSessionManagerClient()->AddObserver(this); 55 56 // Tell the controller about the initial state. 57 ash::Shell::GetInstance()->OnLoginStateChanged(GetCurrentLoginStatus()); 58 59 const ScreenLocker* locker = ScreenLocker::default_screen_locker(); 60 bool locked = locker && locker->locked(); 61 ash::Shell::GetInstance()->OnLockStateChanged(locked); 62} 63 64PowerButtonObserver::~PowerButtonObserver() { 65 DBusThreadManager::Get()->GetSessionManagerClient()->RemoveObserver(this); 66 DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver(this); 67} 68 69void PowerButtonObserver::Observe(int type, 70 const content::NotificationSource& source, 71 const content::NotificationDetails& details) { 72 switch (type) { 73 case chrome::NOTIFICATION_LOGIN_USER_CHANGED: { 74 ash::Shell::GetInstance()->OnLoginStateChanged(GetCurrentLoginStatus()); 75 break; 76 } 77 case chrome::NOTIFICATION_APP_TERMINATING: 78 ash::Shell::GetInstance()->OnAppTerminating(); 79 break; 80 case chrome::NOTIFICATION_SCREEN_LOCK_STATE_CHANGED: { 81 bool locked = *content::Details<bool>(details).ptr(); 82 ash::Shell::GetInstance()->OnLockStateChanged(locked); 83 break; 84 } 85 default: 86 NOTREACHED() << "Unexpected notification " << type; 87 } 88} 89 90void PowerButtonObserver::PowerButtonEventReceived( 91 bool down, const base::TimeTicks& timestamp) { 92 ash::Shell::GetInstance()->power_button_controller()-> 93 OnPowerButtonEvent(down, timestamp); 94} 95 96} // namespace chromeos 97