src/chrome/browser/notifications/login_state_notification_blocker_chromeos.cc

   1 // Copyright 2013 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/notifications/login_state_notification_blocker_chromeos.h"
   6
   7 #include "ash/root_window_controller.h"
   8 #include "ash/shell.h"
   9 #include "ash/system/system_notifier.h"
  10 #include "ash/wm/window_properties.h"
  11 #include "chrome/browser/chrome_notification_types.h"
  12 #include "content/public/browser/notification_service.h"
  13 #include "ui/aura/root_window.h"
  14 #include "ui/aura/window.h"
  15 #include "ui/message_center/message_center.h"
  16
  17 LoginStateNotificationBlockerChromeOS::LoginStateNotificationBlockerChromeOS(
  18     message_center::MessageCenter* message_center)
  19     : NotificationBlocker(message_center),
  20       locked_(false),
  21       observing_(true) {
  22   // This class is created in the ctor of NotificationUIManager which is created
  23   // when a notification is created, so ash::Shell should be initialized.
  24   ash::Shell::GetInstance()->AddShellObserver(this);
  25
  26   // LoginState may not exist in some tests.
  27   if (chromeos::LoginState::IsInitialized())
  28     chromeos::LoginState::Get()->AddObserver(this);
  29 }
  30
  31 LoginStateNotificationBlockerChromeOS::
  32     ~LoginStateNotificationBlockerChromeOS() {
  33   // In some tests, the notification blockers may be removed without calling
  34   // OnAppTerminating().
  35   if (chromeos::LoginState::IsInitialized())
  36     chromeos::LoginState::Get()->RemoveObserver(this);
  37   if (observing_ && ash::Shell::HasInstance())
  38     ash::Shell::GetInstance()->RemoveShellObserver(this);
  39 }
  40
  41 bool LoginStateNotificationBlockerChromeOS::ShouldShowNotificationAsPopup(
  42     const message_center::NotifierId& notifier_id) const {
  43   if (ash::system_notifier::ShouldAlwaysShowPopups(notifier_id))
  44     return true;
  45
  46   if (locked_)
  47     return false;
  48
  49   if (chromeos::LoginState::IsInitialized())
  50     return chromeos::LoginState::Get()->IsUserLoggedIn();
  51
  52   return true;
  53 }
  54
  55 void LoginStateNotificationBlockerChromeOS::OnLockStateChanged(bool locked) {
  56   locked_ = locked;
  57   FOR_EACH_OBSERVER(
  58       NotificationBlocker::Observer, observers(), OnBlockingStateChanged());
  59 }
  60
  61 void LoginStateNotificationBlockerChromeOS::OnAppTerminating() {
  62   ash::Shell::GetInstance()->RemoveShellObserver(this);
  63   observing_ = false;
  64 }
  65
  66 void LoginStateNotificationBlockerChromeOS::LoggedInStateChanged() {
  67   FOR_EACH_OBSERVER(
  68       NotificationBlocker::Observer, observers(), OnBlockingStateChanged());
  69 }