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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/power/power_button_observer.h"
#include "ash/shell.h"
#include "ash/system/tray/system_tray_delegate.h"
#include "ash/system/user/login_status.h"
#include "ash/wm/power_button_controller.h"
#include "base/logging.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/chromeos/login/lock/screen_locker.h"
#include "chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "content/public/browser/notification_service.h"
namespace chromeos {
namespace {
ash::user::LoginStatus GetCurrentLoginStatus() {
if (!ash::Shell::GetInstance()->system_tray_delegate())
return ash::user::LOGGED_IN_NONE;
return ash::Shell::GetInstance()->system_tray_delegate()->
GetUserLoginStatus();
}
} // namespace
PowerButtonObserver::PowerButtonObserver() {
ash::Shell::GetInstance()->lock_state_controller()->
SetDelegate(new SessionStateControllerDelegateChromeos);
registrar_.Add(
this,
chrome::NOTIFICATION_LOGIN_USER_CHANGED,
content::NotificationService::AllSources());
registrar_.Add(
this,
chrome::NOTIFICATION_APP_TERMINATING,
content::NotificationService::AllSources());
registrar_.Add(
this,
chrome::NOTIFICATION_SCREEN_LOCK_STATE_CHANGED,
content::NotificationService::AllSources());
DBusThreadManager::Get()->GetPowerManagerClient()->AddObserver(this);
DBusThreadManager::Get()->GetSessionManagerClient()->AddObserver(this);
// Tell the controller about the initial state.
ash::Shell::GetInstance()->OnLoginStateChanged(GetCurrentLoginStatus());
const ScreenLocker* locker = ScreenLocker::default_screen_locker();
bool locked = locker && locker->locked();
ash::Shell::GetInstance()->OnLockStateChanged(locked);
}
PowerButtonObserver::~PowerButtonObserver() {
DBusThreadManager::Get()->GetSessionManagerClient()->RemoveObserver(this);
DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver(this);
}
void PowerButtonObserver::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_LOGIN_USER_CHANGED: {
ash::Shell::GetInstance()->OnLoginStateChanged(GetCurrentLoginStatus());
break;
}
case chrome::NOTIFICATION_APP_TERMINATING:
ash::Shell::GetInstance()->OnAppTerminating();
break;
case chrome::NOTIFICATION_SCREEN_LOCK_STATE_CHANGED: {
bool locked = *content::Details<bool>(details).ptr();
ash::Shell::GetInstance()->OnLockStateChanged(locked);
break;
}
default:
NOTREACHED() << "Unexpected notification " << type;
}
}
void PowerButtonObserver::PowerButtonEventReceived(
bool down, const base::TimeTicks& timestamp) {
ash::Shell::GetInstance()->power_button_controller()->
OnPowerButtonEvent(down, timestamp);
}
} // namespace chromeos
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