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/window.h"
  14 #include "ui/aura/window_event_dispatcher.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   chromeos::UserAddingScreen::Get()->AddObserver(this);
  30 }
  31
  32 LoginStateNotificationBlockerChromeOS::
  33     ~LoginStateNotificationBlockerChromeOS() {
  34   // In some tests, the notification blockers may be removed without calling
  35   // OnAppTerminating().
  36   if (chromeos::LoginState::IsInitialized())
  37     chromeos::LoginState::Get()->RemoveObserver(this);
  38   if (observing_) {
  39     if (ash::Shell::HasInstance())
  40       ash::Shell::GetInstance()->RemoveShellObserver(this);
  41     chromeos::UserAddingScreen::Get()->RemoveObserver(this);
  42   }
  43 }
  44
  45 bool LoginStateNotificationBlockerChromeOS::ShouldShowNotificationAsPopup(
  46     const message_center::NotifierId& notifier_id) const {
  47   if (ash::system_notifier::ShouldAlwaysShowPopups(notifier_id))
  48     return true;
  49
  50   if (locked_)
  51     return false;
  52
  53   if (chromeos::UserAddingScreen::Get()->IsRunning())
  54     return false;
  55
  56   if (chromeos::LoginState::IsInitialized())
  57     return chromeos::LoginState::Get()->IsUserLoggedIn();
  58
  59   return true;
  60 }
  61
  62 void LoginStateNotificationBlockerChromeOS::OnLockStateChanged(bool locked) {
  63   locked_ = locked;
  64   NotifyBlockingStateChanged();
  65 }
  66
  67 void LoginStateNotificationBlockerChromeOS::OnAppTerminating() {
  68   ash::Shell::GetInstance()->RemoveShellObserver(this);
  69   chromeos::UserAddingScreen::Get()->RemoveObserver(this);
  70   observing_ = false;
  71 }
  72
  73 void LoginStateNotificationBlockerChromeOS::LoggedInStateChanged() {
  74   NotifyBlockingStateChanged();
  75 }
  76
  77 void LoginStateNotificationBlockerChromeOS::OnUserAddingStarted() {
  78   NotifyBlockingStateChanged();
  79 }
  80
  81 void LoginStateNotificationBlockerChromeOS::OnUserAddingFinished() {
  82   NotifyBlockingStateChanged();
  83 }