chrome/browser/ui/ash/system_tray_delegate_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/ui/ash/system_tray_delegate_chromeos.h"
   6
   7 #include <algorithm>
   8 #include <set>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "ash/ash_switches.h"
  13 #include "ash/desktop_background/desktop_background_controller.h"
  14 #include "ash/display/display_manager.h"
  15 #include "ash/metrics/user_metrics_recorder.h"
  16 #include "ash/session/session_state_delegate.h"
  17 #include "ash/session/session_state_observer.h"
  18 #include "ash/shell.h"
  19 #include "ash/shell_delegate.h"
  20 #include "ash/shell_window_ids.h"
  21 #include "ash/system/bluetooth/bluetooth_observer.h"
  22 #include "ash/system/chromeos/session/logout_button_observer.h"
  23 #include "ash/system/chromeos/shutdown_policy_observer.h"
  24 #include "ash/system/date/clock_observer.h"
  25 #include "ash/system/ime/ime_observer.h"
  26 #include "ash/system/tray/system_tray.h"
  27 #include "ash/system/tray/system_tray_delegate.h"
  28 #include "ash/system/tray/system_tray_notifier.h"
  29 #include "ash/system/tray_accessibility.h"
  30 #include "ash/system/user/login_status.h"
  31 #include "ash/system/user/update_observer.h"
  32 #include "ash/system/user/user_observer.h"
  33 #include "ash/volume_control_delegate.h"
  34 #include "ash/wm/lock_state_controller.h"
  35 #include "base/bind_helpers.h"
  36 #include "base/callback.h"
  37 #include "base/logging.h"
  38 #include "base/memory/weak_ptr.h"
  39 #include "base/prefs/pref_service.h"
  40 #include "base/strings/stringprintf.h"
  41 #include "base/strings/utf_string_conversions.h"
  42 #include "base/sys_info.h"
  43 #include "base/time/time.h"
  44 #include "chrome/browser/browser_process.h"
  45 #include "chrome/browser/chrome_notification_types.h"
  46 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
  47 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
  48 #include "chrome/browser/chromeos/bluetooth/bluetooth_pairing_dialog.h"
  49 #include "chrome/browser/chromeos/events/system_key_event_listener.h"
  50 #include "chrome/browser/chromeos/input_method/input_method_switch_recorder.h"
  51 #include "chrome/browser/chromeos/input_method/input_method_util.h"
  52 #include "chrome/browser/chromeos/login/help_app_launcher.h"
  53 #include "chrome/browser/chromeos/login/login_wizard.h"
  54 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
  55 #include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
  56 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
  57 #include "chrome/browser/chromeos/login/user_flow.h"
  58 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
  59 #include "chrome/browser/chromeos/login/users/supervised_user_manager.h"
  60 #include "chrome/browser/chromeos/options/network_config_view.h"
  61 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
  62 #include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
  63 #include "chrome/browser/chromeos/profiles/multiprofiles_intro_dialog.h"
  64 #include "chrome/browser/chromeos/profiles/profile_helper.h"
  65 #include "chrome/browser/chromeos/set_time_dialog.h"
  66 #include "chrome/browser/chromeos/settings/cros_settings.h"
  67 #include "chrome/browser/chromeos/ui/choose_mobile_network_dialog.h"
  68 #include "chrome/browser/lifetime/application_lifetime.h"
  69 #include "chrome/browser/profiles/profile_manager.h"
  70 #include "chrome/browser/supervised_user/supervised_user_service.h"
  71 #include "chrome/browser/supervised_user/supervised_user_service_factory.h"
  72 #include "chrome/browser/ui/ash/cast_config_delegate_chromeos.h"
  73 #include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
  74 #include "chrome/browser/ui/ash/networking_config_delegate_chromeos.h"
  75 #include "chrome/browser/ui/ash/system_tray_delegate_utils.h"
  76 #include "chrome/browser/ui/ash/user_accounts_delegate_chromeos.h"
  77 #include "chrome/browser/ui/ash/volume_controller_chromeos.h"
  78 #include "chrome/browser/ui/ash/vpn_delegate_chromeos.h"
  79 #include "chrome/browser/ui/browser.h"
  80 #include "chrome/browser/ui/browser_finder.h"
  81 #include "chrome/browser/ui/browser_list.h"
  82 #include "chrome/browser/ui/chrome_pages.h"
  83 #include "chrome/browser/ui/host_desktop.h"
  84 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
  85 #include "chrome/browser/ui/singleton_tabs.h"
  86 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  87 #include "chrome/browser/upgrade_detector.h"
  88 #include "chrome/common/chrome_switches.h"
  89 #include "chrome/common/pref_names.h"
  90 #include "chrome/common/url_constants.h"
  91 #include "chrome/grit/generated_resources.h"
  92 #include "chrome/grit/locale_settings.h"
  93 #include "chromeos/dbus/dbus_thread_manager.h"
  94 #include "chromeos/dbus/session_manager_client.h"
  95 #include "chromeos/login/login_state.h"
  96 #include "chromeos/network/portal_detector/network_portal_detector.h"
  97 #include "components/google/core/browser/google_util.h"
  98 #include "components/policy/core/common/cloud/cloud_policy_store.h"
  99 #include "components/user_manager/user.h"
 100 #include "components/user_manager/user_manager.h"
 101 #include "components/user_manager/user_type.h"
 102 #include "content/public/browser/notification_observer.h"
 103 #include "content/public/browser/notification_service.h"
 104 #include "content/public/browser/user_metrics.h"
 105 #include "content/public/browser/web_contents.h"
 106 #include "device/bluetooth/bluetooth_adapter.h"
 107 #include "device/bluetooth/bluetooth_adapter_factory.h"
 108 #include "device/bluetooth/bluetooth_device.h"
 109 #include "net/base/escape.h"
 110 #include "third_party/cros_system_api/dbus/service_constants.h"
 111 #include "ui/base/ime/chromeos/extension_ime_util.h"
 112 #include "ui/base/ime/chromeos/ime_keyboard.h"
 113 #include "ui/base/ime/chromeos/input_method_manager.h"
 114 #include "ui/base/l10n/l10n_util.h"
 115 #include "ui/base/l10n/time_format.h"
 116 #include "ui/chromeos/ime/input_method_menu_item.h"
 117 #include "ui/chromeos/ime/input_method_menu_manager.h"
 118
 119 #if defined(ENABLE_SUPERVISED_USERS)
 120 #include "chrome/browser/supervised_user/supervised_user_service.h"
 121 #include "chrome/browser/supervised_user/supervised_user_service_factory.h"
 122 #endif
 123
 124 namespace chromeos {
 125
 126 namespace {
 127
 128 // The minimum session length limit that can be set.
 129 const int kSessionLengthLimitMinMs = 30 * 1000;  // 30 seconds.
 130
 131 // The maximum session length limit that can be set.
 132 const int kSessionLengthLimitMaxMs = 24 * 60 * 60 * 1000;  // 24 hours.
 133
 134 const char kDisplaySettingsSubPageName[] = "display";
 135 const char kDisplayOverscanSettingsSubPageName[] = "displayOverscan";
 136
 137 void ExtractIMEInfo(const input_method::InputMethodDescriptor& ime,
 138                     const input_method::InputMethodUtil& util,
 139                     ash::IMEInfo* info) {
 140   info->id = ime.id();
 141   info->name = util.GetInputMethodLongName(ime);
 142   info->medium_name = util.GetInputMethodMediumName(ime);
 143   info->short_name = util.GetInputMethodShortName(ime);
 144   info->third_party = extension_ime_util::IsExtensionIME(ime.id());
 145 }
 146
 147 gfx::NativeWindow GetNativeWindowByStatus(ash::user::LoginStatus login_status,
 148                                           bool session_started) {
 149   bool isUserAddingRunning = ash::Shell::GetInstance()
 150                                  ->session_state_delegate()
 151                                  ->IsInSecondaryLoginScreen();
 152
 153   int container_id =
 154       (!session_started || login_status == ash::user::LOGGED_IN_NONE ||
 155        login_status == ash::user::LOGGED_IN_LOCKED || isUserAddingRunning)
 156           ? ash::kShellWindowId_LockSystemModalContainer
 157           : ash::kShellWindowId_SystemModalContainer;
 158   return ash::Shell::GetContainer(ash::Shell::GetPrimaryRootWindow(),
 159                                   container_id);
 160 }
 161
 162 void BluetoothSetDiscoveringError() {
 163   LOG(ERROR) << "BluetoothSetDiscovering failed.";
 164 }
 165
 166 void BluetoothDeviceConnectError(
 167     device::BluetoothDevice::ConnectErrorCode error_code) {
 168 }
 169
 170 void ShowSettingsSubPageForActiveUser(const std::string& sub_page) {
 171   chrome::ShowSettingsSubPageForProfile(
 172       ProfileManager::GetActiveUserProfile(), sub_page);
 173 }
 174
 175 void OnAcceptMultiprofilesIntro(bool no_show_again) {
 176   PrefService* prefs = ProfileManager::GetActiveUserProfile()->GetPrefs();
 177   prefs->SetBoolean(prefs::kMultiProfileNeverShowIntro, no_show_again);
 178   UserAddingScreen::Get()->Start();
 179 }
 180
 181 }  // namespace
 182
 183 SystemTrayDelegateChromeOS::SystemTrayDelegateChromeOS()
 184     : user_profile_(NULL),
 185       clock_type_(base::GetHourClockType()),
 186       search_key_mapped_to_(input_method::kSearchKey),
 187       screen_locked_(false),
 188       have_session_start_time_(false),
 189       have_session_length_limit_(false),
 190       should_run_bluetooth_discovery_(false),
 191       session_started_(false),
 192       cast_config_delegate_(new CastConfigDelegateChromeos()),
 193       networking_config_delegate_(new NetworkingConfigDelegateChromeos()),
 194       volume_control_delegate_(new VolumeController()),
 195       vpn_delegate_(new VPNDelegateChromeOS),
 196       weak_ptr_factory_(this) {
 197   // Register notifications on construction so that events such as
 198   // PROFILE_CREATED do not get missed if they happen before Initialize().
 199   registrar_.reset(new content::NotificationRegistrar);
 200   registrar_->Add(this,
 201                   chrome::NOTIFICATION_UPGRADE_RECOMMENDED,
 202                   content::NotificationService::AllSources());
 203   registrar_->Add(this,
 204                   chrome::NOTIFICATION_LOGIN_USER_IMAGE_CHANGED,
 205                   content::NotificationService::AllSources());
 206   if (GetUserLoginStatus() == ash::user::LOGGED_IN_NONE) {
 207     registrar_->Add(this,
 208                     chrome::NOTIFICATION_SESSION_STARTED,
 209                     content::NotificationService::AllSources());
 210   }
 211   registrar_->Add(this,
 212                   chrome::NOTIFICATION_PROFILE_CREATED,
 213                   content::NotificationService::AllSources());
 214   registrar_->Add(this,
 215                   chrome::NOTIFICATION_PROFILE_DESTROYED,
 216                   content::NotificationService::AllSources());
 217
 218   AccessibilityManager* accessibility_manager = AccessibilityManager::Get();
 219   CHECK(accessibility_manager);
 220   accessibility_subscription_ = accessibility_manager->RegisterCallback(
 221       base::Bind(&SystemTrayDelegateChromeOS::OnAccessibilityStatusChanged,
 222                  base::Unretained(this)));
 223
 224   user_manager::UserManager::Get()->AddSessionStateObserver(this);
 225   shutdown_policy_handler_.reset(
 226       new ShutdownPolicyHandler(CrosSettings::Get(), this));
 227 }
 228
 229 void SystemTrayDelegateChromeOS::Initialize() {
 230   DBusThreadManager::Get()->GetSessionManagerClient()->AddObserver(this);
 231
 232   input_method::InputMethodManager::Get()->AddObserver(this);
 233   ui::ime::InputMethodMenuManager::GetInstance()->AddObserver(this);
 234
 235   g_browser_process->platform_part()->GetSystemClock()->AddObserver(this);
 236
 237   OnSystemClockChanged(g_browser_process->platform_part()->GetSystemClock());
 238
 239   device::BluetoothAdapterFactory::GetAdapter(
 240       base::Bind(&SystemTrayDelegateChromeOS::InitializeOnAdapterReady,
 241                  weak_ptr_factory_.GetWeakPtr()));
 242
 243   ash::Shell::GetInstance()->session_state_delegate()->AddSessionStateObserver(
 244       this);
 245
 246   if (CrasAudioHandler::IsInitialized())
 247     CrasAudioHandler::Get()->AddAudioObserver(this);
 248
 249   BrowserList::AddObserver(this);
 250 }
 251
 252 void SystemTrayDelegateChromeOS::Shutdown() {
 253 }
 254
 255 void SystemTrayDelegateChromeOS::InitializeOnAdapterReady(
 256     scoped_refptr<device::BluetoothAdapter> adapter) {
 257   bluetooth_adapter_ = adapter;
 258   CHECK(bluetooth_adapter_.get());
 259   bluetooth_adapter_->AddObserver(this);
 260
 261   local_state_registrar_.reset(new PrefChangeRegistrar);
 262   local_state_registrar_->Init(g_browser_process->local_state());
 263
 264   UpdateSessionStartTime();
 265   UpdateSessionLengthLimit();
 266
 267   local_state_registrar_->Add(
 268       prefs::kSessionStartTime,
 269       base::Bind(&SystemTrayDelegateChromeOS::UpdateSessionStartTime,
 270                  base::Unretained(this)));
 271   local_state_registrar_->Add(
 272       prefs::kSessionLengthLimit,
 273       base::Bind(&SystemTrayDelegateChromeOS::UpdateSessionLengthLimit,
 274                  base::Unretained(this)));
 275
 276   policy::BrowserPolicyConnectorChromeOS* policy_connector =
 277       g_browser_process->platform_part()->browser_policy_connector_chromeos();
 278   policy::DeviceCloudPolicyManagerChromeOS* policy_manager =
 279       policy_connector->GetDeviceCloudPolicyManager();
 280   if (policy_manager)
 281     policy_manager->core()->store()->AddObserver(this);
 282   UpdateEnterpriseDomain();
 283 }
 284
 285 SystemTrayDelegateChromeOS::~SystemTrayDelegateChromeOS() {
 286   // Unregister PrefChangeRegistrars.
 287   local_state_registrar_.reset();
 288   user_pref_registrar_.reset();
 289
 290   // Unregister content notifications before destroying any components.
 291   registrar_.reset();
 292
 293   // Unregister a11y status subscription.
 294   accessibility_subscription_.reset();
 295
 296   g_browser_process->platform_part()->GetSystemClock()->RemoveObserver(this);
 297   DBusThreadManager::Get()->GetSessionManagerClient()->RemoveObserver(this);
 298   input_method::InputMethodManager::Get()->RemoveObserver(this);
 299   ui::ime::InputMethodMenuManager::GetInstance()->RemoveObserver(this);
 300   bluetooth_adapter_->RemoveObserver(this);
 301   ash::Shell::GetInstance()
 302       ->session_state_delegate()
 303       ->RemoveSessionStateObserver(this);
 304
 305   if (CrasAudioHandler::IsInitialized())
 306     CrasAudioHandler::Get()->RemoveAudioObserver(this);
 307
 308   BrowserList::RemoveObserver(this);
 309   StopObservingAppWindowRegistry();
 310   StopObservingCustodianInfoChanges();
 311
 312   policy::BrowserPolicyConnectorChromeOS* connector =
 313       g_browser_process->platform_part()->browser_policy_connector_chromeos();
 314   policy::DeviceCloudPolicyManagerChromeOS* policy_manager =
 315       connector->GetDeviceCloudPolicyManager();
 316   if (policy_manager)
 317     policy_manager->core()->store()->RemoveObserver(this);
 318
 319   user_manager::UserManager::Get()->RemoveSessionStateObserver(this);
 320 }
 321
 322 // Overridden from ash::SystemTrayDelegate:
 323 bool SystemTrayDelegateChromeOS::GetTrayVisibilityOnStartup() {
 324   // In case of OOBE / sign in screen tray will be shown later.
 325   return LoginState::Get()->IsUserLoggedIn();
 326 }
 327
 328 ash::user::LoginStatus SystemTrayDelegateChromeOS::GetUserLoginStatus() const {
 329   // All non-logged in ChromeOS specific LOGGED_IN states map to the same
 330   // Ash specific LOGGED_IN state.
 331   if (!LoginState::Get()->IsUserLoggedIn())
 332     return ash::user::LOGGED_IN_NONE;
 333
 334   if (screen_locked_)
 335     return ash::user::LOGGED_IN_LOCKED;
 336
 337   LoginState::LoggedInUserType user_type =
 338       LoginState::Get()->GetLoggedInUserType();
 339   switch (user_type) {
 340     case LoginState::LOGGED_IN_USER_NONE:
 341       return ash::user::LOGGED_IN_NONE;
 342     case LoginState::LOGGED_IN_USER_REGULAR:
 343       return ash::user::LOGGED_IN_USER;
 344     case LoginState::LOGGED_IN_USER_OWNER:
 345       return ash::user::LOGGED_IN_OWNER;
 346     case LoginState::LOGGED_IN_USER_GUEST:
 347       return ash::user::LOGGED_IN_GUEST;
 348     case LoginState::LOGGED_IN_USER_PUBLIC_ACCOUNT:
 349       return ash::user::LOGGED_IN_PUBLIC;
 350     case LoginState::LOGGED_IN_USER_SUPERVISED:
 351       return ash::user::LOGGED_IN_SUPERVISED;
 352     case LoginState::LOGGED_IN_USER_KIOSK_APP:
 353       return ash::user::LOGGED_IN_KIOSK_APP;
 354   }
 355   NOTREACHED();
 356   return ash::user::LOGGED_IN_NONE;
 357 }
 358
 359 void SystemTrayDelegateChromeOS::ChangeProfilePicture() {
 360   content::RecordAction(
 361       base::UserMetricsAction("OpenChangeProfilePictureDialog"));
 362   ShowSettingsSubPageForActiveUser(chrome::kChangeProfilePictureSubPage);
 363 }
 364
 365 std::string SystemTrayDelegateChromeOS::GetEnterpriseDomain() const {
 366   return enterprise_domain_;
 367 }
 368
 369 const base::string16 SystemTrayDelegateChromeOS::GetEnterpriseMessage() const {
 370   if (GetEnterpriseDomain().empty())
 371     return base::string16();
 372   return l10n_util::GetStringFUTF16(IDS_DEVICE_OWNED_BY_NOTICE,
 373                                     base::UTF8ToUTF16(GetEnterpriseDomain()));
 374 }
 375
 376 const std::string SystemTrayDelegateChromeOS::GetSupervisedUserManager() const {
 377   if (!IsUserSupervised())
 378     return std::string();
 379   return SupervisedUserServiceFactory::GetForProfile(user_profile_)->
 380       GetCustodianEmailAddress();
 381 }
 382
 383 const base::string16
 384 SystemTrayDelegateChromeOS::GetSupervisedUserManagerName() const {
 385   if (!IsUserSupervised())
 386     return base::string16();
 387   return base::UTF8ToUTF16(SupervisedUserServiceFactory::GetForProfile(
 388       user_profile_)->GetCustodianName());
 389 }
 390
 391 const base::string16 SystemTrayDelegateChromeOS::GetSupervisedUserMessage()
 392     const {
 393   if (!IsUserSupervised())
 394     return base::string16();
 395   if (IsUserChild())
 396     return GetChildUserMessage();
 397   return GetLegacySupervisedUserMessage();
 398 }
 399
 400 bool SystemTrayDelegateChromeOS::IsUserSupervised() const {
 401   user_manager::User* user = user_manager::UserManager::Get()->GetActiveUser();
 402   return user && user->IsSupervised();
 403 }
 404
 405 bool SystemTrayDelegateChromeOS::IsUserChild() const {
 406   return user_manager::UserManager::Get()->IsLoggedInAsChildUser();
 407 }
 408
 409 void SystemTrayDelegateChromeOS::GetSystemUpdateInfo(
 410     ash::UpdateInfo* info) const {
 411   GetUpdateInfo(UpgradeDetector::GetInstance(), info);
 412 }
 413
 414 base::HourClockType SystemTrayDelegateChromeOS::GetHourClockType() const {
 415   return clock_type_;
 416 }
 417
 418 void SystemTrayDelegateChromeOS::ShowSettings() {
 419   ShowSettingsSubPageForActiveUser("");
 420 }
 421
 422 bool SystemTrayDelegateChromeOS::ShouldShowSettings() {
 423   return ChromeUserManager::Get()->GetCurrentUserFlow()->ShouldShowSettings() &&
 424          !ash::Shell::GetInstance()
 425               ->session_state_delegate()
 426               ->IsInSecondaryLoginScreen();
 427 }
 428
 429 void SystemTrayDelegateChromeOS::ShowDateSettings() {
 430   content::RecordAction(base::UserMetricsAction("ShowDateOptions"));
 431   std::string sub_page =
 432       std::string(chrome::kSearchSubPage) + "#" +
 433       l10n_util::GetStringUTF8(IDS_OPTIONS_SETTINGS_SECTION_TITLE_DATETIME);
 434   // Everybody can change the time zone (even though it is a device setting).
 435   ShowSettingsSubPageForActiveUser(sub_page);
 436 }
 437
 438 void SystemTrayDelegateChromeOS::ShowSetTimeDialog() {
 439   SetTimeDialog::ShowDialog(GetNativeWindow());
 440 }
 441
 442 void SystemTrayDelegateChromeOS::ShowNetworkSettingsForGuid(
 443     const std::string& guid) {
 444   bool userAddingRunning = ash::Shell::GetInstance()
 445                                ->session_state_delegate()
 446                                ->IsInSecondaryLoginScreen();
 447
 448   if (!LoginState::Get()->IsUserLoggedIn() || userAddingRunning)
 449     return;
 450   std::string page = chrome::kInternetOptionsSubPage;
 451   if (!guid.empty())
 452     page += "?guid=" + net::EscapeUrlEncodedData(guid, true);
 453   content::RecordAction(base::UserMetricsAction("OpenInternetOptionsDialog"));
 454   ShowSettingsSubPageForActiveUser(page);
 455 }
 456
 457 void SystemTrayDelegateChromeOS::ShowDisplaySettings() {
 458   // TODO(michaelpg): Allow display settings to be shown when they are updated
 459   // to work for 3+ displays. See issue 467195.
 460   if (ash::Shell::GetInstance()->display_manager()->num_connected_displays() >
 461       2) {
 462     return;
 463   }
 464   content::RecordAction(base::UserMetricsAction("ShowDisplayOptions"));
 465   ShowSettingsSubPageForActiveUser(kDisplaySettingsSubPageName);
 466 }
 467
 468 void SystemTrayDelegateChromeOS::ShowChromeSlow() {
 469   chrome::ScopedTabbedBrowserDisplayer displayer(
 470       ProfileManager::GetPrimaryUserProfile(), chrome::HOST_DESKTOP_TYPE_ASH);
 471   chrome::ShowSlow(displayer.browser());
 472 }
 473
 474 bool SystemTrayDelegateChromeOS::ShouldShowDisplayNotification() {
 475   // Packaged app is not counted as 'last active', so if a browser opening the
 476   // display settings is in background of a packaged app, it will return true.
 477   // TODO(mukai): fix this.
 478   Browser* active_browser =
 479       chrome::FindLastActiveWithHostDesktopType(chrome::HOST_DESKTOP_TYPE_ASH);
 480   if (!active_browser)
 481     return true;
 482
 483   content::WebContents* active_contents =
 484       active_browser->tab_strip_model()->GetActiveWebContents();
 485   if (!active_contents)
 486     return true;
 487
 488   GURL visible_url = active_contents->GetLastCommittedURL();
 489   return !(chrome::IsSettingsSubPage(visible_url,
 490                                      kDisplaySettingsSubPageName) ||
 491            chrome::IsSettingsSubPage(visible_url,
 492                                      kDisplayOverscanSettingsSubPageName));
 493 }
 494
 495 void SystemTrayDelegateChromeOS::ShowIMESettings() {
 496   content::RecordAction(base::UserMetricsAction("OpenLanguageOptionsDialog"));
 497   ShowSettingsSubPageForActiveUser(chrome::kLanguageOptionsSubPage);
 498 }
 499
 500 void SystemTrayDelegateChromeOS::ShowHelp() {
 501   chrome::ShowHelpForProfile(ProfileManager::GetActiveUserProfile(),
 502                              chrome::HOST_DESKTOP_TYPE_ASH,
 503                              chrome::HELP_SOURCE_MENU);
 504 }
 505
 506 void SystemTrayDelegateChromeOS::ShowAccessibilityHelp() {
 507   chrome::ScopedTabbedBrowserDisplayer displayer(
 508       ProfileManager::GetActiveUserProfile(), chrome::HOST_DESKTOP_TYPE_ASH);
 509   accessibility::ShowAccessibilityHelp(displayer.browser());
 510 }
 511
 512 void SystemTrayDelegateChromeOS::ShowAccessibilitySettings() {
 513   content::RecordAction(base::UserMetricsAction("ShowAccessibilitySettings"));
 514   std::string sub_page = std::string(chrome::kSearchSubPage) + "#" +
 515                          l10n_util::GetStringUTF8(
 516                              IDS_OPTIONS_SETTINGS_SECTION_TITLE_ACCESSIBILITY);
 517   ShowSettingsSubPageForActiveUser(sub_page);
 518 }
 519
 520 void SystemTrayDelegateChromeOS::ShowPublicAccountInfo() {
 521   chrome::ScopedTabbedBrowserDisplayer displayer(
 522       ProfileManager::GetActiveUserProfile(), chrome::HOST_DESKTOP_TYPE_ASH);
 523   chrome::ShowPolicy(displayer.browser());
 524 }
 525
 526 void SystemTrayDelegateChromeOS::ShowSupervisedUserInfo() {
 527   // TODO(antrim): find out what should we show in this case.
 528   // http://crbug.com/229762
 529 }
 530
 531 void SystemTrayDelegateChromeOS::ShowEnterpriseInfo() {
 532   ash::user::LoginStatus status = GetUserLoginStatus();
 533   bool userAddingRunning = ash::Shell::GetInstance()
 534                                ->session_state_delegate()
 535                                ->IsInSecondaryLoginScreen();
 536
 537   if (status == ash::user::LOGGED_IN_NONE ||
 538       status == ash::user::LOGGED_IN_LOCKED || userAddingRunning) {
 539     scoped_refptr<chromeos::HelpAppLauncher> help_app(
 540         new chromeos::HelpAppLauncher(GetNativeWindow()));
 541     help_app->ShowHelpTopic(chromeos::HelpAppLauncher::HELP_ENTERPRISE);
 542   } else {
 543     chrome::ScopedTabbedBrowserDisplayer displayer(
 544         ProfileManager::GetActiveUserProfile(), chrome::HOST_DESKTOP_TYPE_ASH);
 545     chrome::ShowSingletonTab(displayer.browser(),
 546                              GURL(chrome::kLearnMoreEnterpriseURL));
 547   }
 548 }
 549
 550 void SystemTrayDelegateChromeOS::ShowUserLogin() {
 551   ash::Shell* shell = ash::Shell::GetInstance();
 552   if (!shell->delegate()->IsMultiProfilesEnabled())
 553     return;
 554
 555   // Only regular non-supervised users could add other users to current session.
 556   if (user_manager::UserManager::Get()->GetActiveUser()->GetType() !=
 557       user_manager::USER_TYPE_REGULAR) {
 558     return;
 559   }
 560
 561   if (static_cast<int>(
 562           user_manager::UserManager::Get()->GetLoggedInUsers().size()) >=
 563       shell->session_state_delegate()->GetMaximumNumberOfLoggedInUsers())
 564     return;
 565
 566   // Launch sign in screen to add another user to current session.
 567   if (user_manager::UserManager::Get()
 568           ->GetUsersAllowedForMultiProfile()
 569           .size()) {
 570     // Don't show dialog if any logged in user in multi-profiles session
 571     // dismissed it.
 572     bool show_intro = true;
 573     const user_manager::UserList logged_in_users =
 574         user_manager::UserManager::Get()->GetLoggedInUsers();
 575     for (user_manager::UserList::const_iterator it = logged_in_users.begin();
 576          it != logged_in_users.end();
 577          ++it) {
 578       show_intro &= !multi_user_util::GetProfileFromUserID(
 579                          multi_user_util::GetUserIDFromEmail((*it)->email()))
 580                          ->GetPrefs()
 581                          ->GetBoolean(prefs::kMultiProfileNeverShowIntro);
 582       if (!show_intro)
 583         break;
 584     }
 585     if (show_intro) {
 586       base::Callback<void(bool)> on_accept =
 587           base::Bind(&OnAcceptMultiprofilesIntro);
 588       ShowMultiprofilesIntroDialog(on_accept);
 589     } else {
 590       UserAddingScreen::Get()->Start();
 591     }
 592   }
 593 }
 594
 595 void SystemTrayDelegateChromeOS::SignOut() {
 596   chrome::AttemptUserExit();
 597 }
 598
 599 void SystemTrayDelegateChromeOS::RequestLockScreen() {
 600   // TODO(antrim) : additional logging for crbug/173178
 601   LOG(WARNING) << "Requesting screen lock from AshSystemTrayDelegate";
 602   DBusThreadManager::Get()->GetSessionManagerClient()->RequestLockScreen();
 603 }
 604
 605 void SystemTrayDelegateChromeOS::RequestRestartForUpdate() {
 606   // We expect that UpdateEngine is in "Reboot for update" state now.
 607   chrome::NotifyAndTerminate(true /* fast path */);
 608 }
 609
 610 void SystemTrayDelegateChromeOS::GetAvailableBluetoothDevices(
 611     ash::BluetoothDeviceList* list) {
 612   device::BluetoothAdapter::DeviceList devices =
 613       bluetooth_adapter_->GetDevices();
 614   for (size_t i = 0; i < devices.size(); ++i) {
 615     device::BluetoothDevice* device = devices[i];
 616     ash::BluetoothDeviceInfo info;
 617     info.address = device->GetAddress();
 618     info.display_name = device->GetName();
 619     info.connected = device->IsConnected();
 620     info.connecting = device->IsConnecting();
 621     info.paired = device->IsPaired();
 622     list->push_back(info);
 623   }
 624 }
 625
 626 void SystemTrayDelegateChromeOS::BluetoothStartDiscovering() {
 627   if (GetBluetoothDiscovering()) {
 628     LOG(WARNING) << "Already have active Bluetooth device discovery session.";
 629     return;
 630   }
 631   VLOG(1) << "Requesting new Bluetooth device discovery session.";
 632   should_run_bluetooth_discovery_ = true;
 633   bluetooth_adapter_->StartDiscoverySession(
 634       base::Bind(&SystemTrayDelegateChromeOS::OnStartBluetoothDiscoverySession,
 635                  weak_ptr_factory_.GetWeakPtr()),
 636       base::Bind(&BluetoothSetDiscoveringError));
 637 }
 638
 639 void SystemTrayDelegateChromeOS::BluetoothStopDiscovering() {
 640   should_run_bluetooth_discovery_ = false;
 641   if (!GetBluetoothDiscovering()) {
 642     LOG(WARNING) << "No active Bluetooth device discovery session.";
 643     return;
 644   }
 645   VLOG(1) << "Stopping Bluetooth device discovery session.";
 646   bluetooth_discovery_session_->Stop(
 647       base::Bind(&base::DoNothing), base::Bind(&BluetoothSetDiscoveringError));
 648 }
 649
 650 void SystemTrayDelegateChromeOS::ConnectToBluetoothDevice(
 651     const std::string& address) {
 652   device::BluetoothDevice* device = bluetooth_adapter_->GetDevice(address);
 653   if (!device || device->IsConnecting() ||
 654       (device->IsConnected() && device->IsPaired())) {
 655     return;
 656   }
 657   if (device->IsPaired() && !device->IsConnectable())
 658     return;
 659   if (device->IsPaired() || !device->IsPairable()) {
 660     ash::Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 661         ash::UMA_STATUS_AREA_BLUETOOTH_CONNECT_KNOWN_DEVICE);
 662     device->Connect(NULL,
 663                     base::Bind(&base::DoNothing),
 664                     base::Bind(&BluetoothDeviceConnectError));
 665   } else {  // Show paring dialog for the unpaired device.
 666     ash::Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 667         ash::UMA_STATUS_AREA_BLUETOOTH_CONNECT_UNKNOWN_DEVICE);
 668     BluetoothPairingDialog* dialog =
 669         new BluetoothPairingDialog(GetNativeWindow(), device);
 670     // The dialog deletes itself on close.
 671     dialog->Show();
 672   }
 673 }
 674
 675 bool SystemTrayDelegateChromeOS::IsBluetoothDiscovering() {
 676   return bluetooth_adapter_->IsDiscovering();
 677 }
 678
 679 void SystemTrayDelegateChromeOS::GetCurrentIME(ash::IMEInfo* info) {
 680   input_method::InputMethodManager* manager =
 681       input_method::InputMethodManager::Get();
 682   input_method::InputMethodUtil* util = manager->GetInputMethodUtil();
 683   input_method::InputMethodDescriptor ime =
 684       manager->GetActiveIMEState()->GetCurrentInputMethod();
 685   ExtractIMEInfo(ime, *util, info);
 686   info->selected = true;
 687 }
 688
 689 void SystemTrayDelegateChromeOS::GetAvailableIMEList(ash::IMEInfoList* list) {
 690   input_method::InputMethodManager* manager =
 691       input_method::InputMethodManager::Get();
 692   input_method::InputMethodUtil* util = manager->GetInputMethodUtil();
 693   scoped_ptr<input_method::InputMethodDescriptors> ime_descriptors(
 694       manager->GetActiveIMEState()->GetActiveInputMethods());
 695   std::string current =
 696       manager->GetActiveIMEState()->GetCurrentInputMethod().id();
 697   for (size_t i = 0; i < ime_descriptors->size(); i++) {
 698     input_method::InputMethodDescriptor& ime = ime_descriptors->at(i);
 699     ash::IMEInfo info;
 700     ExtractIMEInfo(ime, *util, &info);
 701     info.selected = ime.id() == current;
 702     list->push_back(info);
 703   }
 704 }
 705
 706 void SystemTrayDelegateChromeOS::GetCurrentIMEProperties(
 707     ash::IMEPropertyInfoList* list) {
 708   ui::ime::InputMethodMenuItemList menu_list =
 709       ui::ime::InputMethodMenuManager::GetInstance()->
 710       GetCurrentInputMethodMenuItemList();
 711   for (size_t i = 0; i < menu_list.size(); ++i) {
 712     ash::IMEPropertyInfo property;
 713     property.key = menu_list[i].key;
 714     property.name = base::UTF8ToUTF16(menu_list[i].label);
 715     property.selected = menu_list[i].is_selection_item_checked;
 716     list->push_back(property);
 717   }
 718 }
 719
 720 void SystemTrayDelegateChromeOS::SwitchIME(const std::string& ime_id) {
 721   input_method::InputMethodManager::Get()
 722       ->GetActiveIMEState()
 723       ->ChangeInputMethod(ime_id, false /* show_message */);
 724   input_method::InputMethodSwitchRecorder::Get()->RecordSwitch(
 725       true /* by_tray_menu */);
 726 }
 727
 728 void SystemTrayDelegateChromeOS::ActivateIMEProperty(const std::string& key) {
 729   input_method::InputMethodManager::Get()->ActivateInputMethodMenuItem(key);
 730 }
 731
 732 void SystemTrayDelegateChromeOS::ManageBluetoothDevices() {
 733   content::RecordAction(base::UserMetricsAction("ShowBluetoothSettingsPage"));
 734   std::string sub_page =
 735       std::string(chrome::kSearchSubPage) + "#" +
 736       l10n_util::GetStringUTF8(IDS_OPTIONS_SETTINGS_SECTION_TITLE_BLUETOOTH);
 737   ShowSettingsSubPageForActiveUser(sub_page);
 738 }
 739
 740 void SystemTrayDelegateChromeOS::ToggleBluetooth() {
 741   bluetooth_adapter_->SetPowered(!bluetooth_adapter_->IsPowered(),
 742                                  base::Bind(&base::DoNothing),
 743                                  base::Bind(&base::DoNothing));
 744 }
 745
 746 void SystemTrayDelegateChromeOS::ShowOtherNetworkDialog(
 747     const std::string& type) {
 748   if (type == shill::kTypeCellular) {
 749     ChooseMobileNetworkDialog::ShowDialog(GetNativeWindow());
 750     return;
 751   }
 752   NetworkConfigView::ShowForType(type, GetNativeWindow());
 753 }
 754
 755 bool SystemTrayDelegateChromeOS::GetBluetoothAvailable() {
 756   return bluetooth_adapter_->IsPresent();
 757 }
 758
 759 bool SystemTrayDelegateChromeOS::GetBluetoothEnabled() {
 760   return bluetooth_adapter_->IsPowered();
 761 }
 762
 763 bool SystemTrayDelegateChromeOS::GetBluetoothDiscovering() {
 764   return (bluetooth_discovery_session_.get() &&
 765       bluetooth_discovery_session_->IsActive());
 766 }
 767
 768 void SystemTrayDelegateChromeOS::ChangeProxySettings() {
 769   CHECK(GetUserLoginStatus() == ash::user::LOGGED_IN_NONE);
 770   LoginDisplayHostImpl::default_host()->OpenProxySettings();
 771 }
 772
 773 ash::CastConfigDelegate* SystemTrayDelegateChromeOS::GetCastConfigDelegate()
 774     const {
 775   return cast_config_delegate_.get();
 776 }
 777
 778 ash::NetworkingConfigDelegate*
 779 SystemTrayDelegateChromeOS::GetNetworkingConfigDelegate() const {
 780   return networking_config_delegate_.get();
 781 }
 782
 783 ash::VolumeControlDelegate*
 784 SystemTrayDelegateChromeOS::GetVolumeControlDelegate() const {
 785   return volume_control_delegate_.get();
 786 }
 787
 788 void SystemTrayDelegateChromeOS::SetVolumeControlDelegate(
 789     scoped_ptr<ash::VolumeControlDelegate> delegate) {
 790   volume_control_delegate_.swap(delegate);
 791 }
 792
 793 bool SystemTrayDelegateChromeOS::GetSessionStartTime(
 794     base::TimeTicks* session_start_time) {
 795   *session_start_time = session_start_time_;
 796   return have_session_start_time_;
 797 }
 798
 799 bool SystemTrayDelegateChromeOS::GetSessionLengthLimit(
 800     base::TimeDelta* session_length_limit) {
 801   *session_length_limit = session_length_limit_;
 802   return have_session_length_limit_;
 803 }
 804
 805 int SystemTrayDelegateChromeOS::GetSystemTrayMenuWidth() {
 806   return l10n_util::GetLocalizedContentsWidthInPixels(
 807       IDS_SYSTEM_TRAY_MENU_BUBBLE_WIDTH_PIXELS);
 808 }
 809
 810 void SystemTrayDelegateChromeOS::ActiveUserWasChanged() {
 811   SetProfile(ProfileManager::GetActiveUserProfile());
 812   GetSystemTrayNotifier()->NotifyUserUpdate();
 813 }
 814
 815 bool SystemTrayDelegateChromeOS::IsSearchKeyMappedToCapsLock() {
 816   return search_key_mapped_to_ == input_method::kCapsLockKey;
 817 }
 818
 819 ash::tray::UserAccountsDelegate*
 820 SystemTrayDelegateChromeOS::GetUserAccountsDelegate(
 821     const std::string& user_id) {
 822   if (!accounts_delegates_.contains(user_id)) {
 823     const user_manager::User* user =
 824         user_manager::UserManager::Get()->FindUser(user_id);
 825     Profile* user_profile = ProfileHelper::Get()->GetProfileByUserUnsafe(user);
 826     CHECK(user_profile);
 827     accounts_delegates_.set(
 828         user_id,
 829         scoped_ptr<ash::tray::UserAccountsDelegate>(
 830             new UserAccountsDelegateChromeOS(user_profile)));
 831   }
 832   return accounts_delegates_.get(user_id);
 833 }
 834
 835 void SystemTrayDelegateChromeOS::AddCustodianInfoTrayObserver(
 836     ash::CustodianInfoTrayObserver* observer) {
 837   custodian_info_changed_observers_.AddObserver(observer);
 838 }
 839
 840 void SystemTrayDelegateChromeOS::RemoveCustodianInfoTrayObserver(
 841     ash::CustodianInfoTrayObserver* observer) {
 842   custodian_info_changed_observers_.RemoveObserver(observer);
 843 }
 844
 845 void SystemTrayDelegateChromeOS::AddShutdownPolicyObserver(
 846     ash::ShutdownPolicyObserver* observer) {
 847   shutdown_policy_observers_.AddObserver(observer);
 848 }
 849
 850 void SystemTrayDelegateChromeOS::RemoveShutdownPolicyObserver(
 851     ash::ShutdownPolicyObserver* observer) {
 852   shutdown_policy_observers_.RemoveObserver(observer);
 853 }
 854
 855 void SystemTrayDelegateChromeOS::ShouldRebootOnShutdown(
 856     const ash::RebootOnShutdownCallback& callback) {
 857   shutdown_policy_handler_->CheckIfRebootOnShutdown(callback);
 858 }
 859
 860 ash::VPNDelegate* SystemTrayDelegateChromeOS::GetVPNDelegate() const {
 861   return vpn_delegate_.get();
 862 }
 863
 864 void SystemTrayDelegateChromeOS::UserAddedToSession(
 865     const user_manager::User* active_user) {
 866 }
 867
 868 void SystemTrayDelegateChromeOS::ActiveUserChanged(
 869     const user_manager::User* /* active_user */) {
 870 }
 871
 872 void SystemTrayDelegateChromeOS::UserChangedChildStatus(
 873     user_manager::User* user) {
 874   Profile* user_profile = ProfileHelper::Get()->GetProfileByUser(user);
 875
 876   // Returned user_profile might be NULL on restoring Users on browser start.
 877   // At some point profile is not yet fully initiated.
 878   if (session_started_ &&
 879       user_profile != NULL &&
 880       user_profile_ == user_profile) {
 881     ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
 882         GetUserLoginStatus());
 883   }
 884 }
 885
 886 ash::SystemTray* SystemTrayDelegateChromeOS::GetPrimarySystemTray() {
 887   return ash::Shell::GetInstance()->GetPrimarySystemTray();
 888 }
 889
 890 ash::SystemTrayNotifier* SystemTrayDelegateChromeOS::GetSystemTrayNotifier() {
 891   return ash::Shell::GetInstance()->system_tray_notifier();
 892 }
 893
 894 void SystemTrayDelegateChromeOS::SetProfile(Profile* profile) {
 895   // Stop observing the AppWindowRegistry of the current |user_profile_|.
 896   StopObservingAppWindowRegistry();
 897
 898   // Stop observing custodian info changes of the current |user_profile_|.
 899   StopObservingCustodianInfoChanges();
 900
 901   user_profile_ = profile;
 902
 903   // Start observing the AppWindowRegistry of the newly set |user_profile_|.
 904   extensions::AppWindowRegistry::Get(user_profile_)->AddObserver(this);
 905
 906   // Start observing custodian info changes of the newly set |user_profile_|.
 907   SupervisedUserServiceFactory::GetForProfile(profile)->AddObserver(this);
 908
 909   PrefService* prefs = profile->GetPrefs();
 910   user_pref_registrar_.reset(new PrefChangeRegistrar);
 911   user_pref_registrar_->Init(prefs);
 912   user_pref_registrar_->Add(
 913       prefs::kLanguageRemapSearchKeyTo,
 914       base::Bind(&SystemTrayDelegateChromeOS::OnLanguageRemapSearchKeyToChanged,
 915                  base::Unretained(this)));
 916   user_pref_registrar_->Add(
 917       prefs::kShowLogoutButtonInTray,
 918       base::Bind(&SystemTrayDelegateChromeOS::UpdateShowLogoutButtonInTray,
 919                  base::Unretained(this)));
 920   user_pref_registrar_->Add(
 921       prefs::kLogoutDialogDurationMs,
 922       base::Bind(&SystemTrayDelegateChromeOS::UpdateLogoutDialogDuration,
 923                  base::Unretained(this)));
 924   user_pref_registrar_->Add(
 925       prefs::kAccessibilityLargeCursorEnabled,
 926       base::Bind(&SystemTrayDelegateChromeOS::OnAccessibilityModeChanged,
 927                  base::Unretained(this),
 928                  ui::A11Y_NOTIFICATION_NONE));
 929   user_pref_registrar_->Add(
 930       prefs::kAccessibilityAutoclickEnabled,
 931       base::Bind(&SystemTrayDelegateChromeOS::OnAccessibilityModeChanged,
 932                  base::Unretained(this),
 933                  ui::A11Y_NOTIFICATION_NONE));
 934   user_pref_registrar_->Add(
 935       prefs::kShouldAlwaysShowAccessibilityMenu,
 936       base::Bind(&SystemTrayDelegateChromeOS::OnAccessibilityModeChanged,
 937                  base::Unretained(this),
 938                  ui::A11Y_NOTIFICATION_NONE));
 939   user_pref_registrar_->Add(
 940       prefs::kPerformanceTracingEnabled,
 941       base::Bind(&SystemTrayDelegateChromeOS::UpdatePerformanceTracing,
 942                  base::Unretained(this)));
 943
 944   UpdateShowLogoutButtonInTray();
 945   UpdateLogoutDialogDuration();
 946   UpdatePerformanceTracing();
 947   OnCustodianInfoChanged();
 948   search_key_mapped_to_ =
 949       profile->GetPrefs()->GetInteger(prefs::kLanguageRemapSearchKeyTo);
 950 }
 951
 952 bool SystemTrayDelegateChromeOS::UnsetProfile(Profile* profile) {
 953   if (profile != user_profile_)
 954     return false;
 955   user_pref_registrar_.reset();
 956   user_profile_ = NULL;
 957   return true;
 958 }
 959
 960 bool SystemTrayDelegateChromeOS::GetShouldUse24HourClockForTesting() const {
 961   return g_browser_process->platform_part()
 962       ->GetSystemClock()
 963       ->ShouldUse24HourClock();
 964 }
 965
 966 void SystemTrayDelegateChromeOS::OnSystemClockChanged(
 967     system::SystemClock* system_clock) {
 968   const bool use_24_hour_clock = system_clock->ShouldUse24HourClock();
 969   clock_type_ = use_24_hour_clock ? base::k24HourClock : base::k12HourClock;
 970   GetSystemTrayNotifier()->NotifyDateFormatChanged();
 971 }
 972
 973 void SystemTrayDelegateChromeOS::UpdateShowLogoutButtonInTray() {
 974   GetSystemTrayNotifier()->NotifyShowLoginButtonChanged(
 975       user_pref_registrar_->prefs()->GetBoolean(
 976           prefs::kShowLogoutButtonInTray));
 977 }
 978
 979 void SystemTrayDelegateChromeOS::UpdateLogoutDialogDuration() {
 980   const int duration_ms =
 981       user_pref_registrar_->prefs()->GetInteger(prefs::kLogoutDialogDurationMs);
 982   GetSystemTrayNotifier()->NotifyLogoutDialogDurationChanged(
 983       base::TimeDelta::FromMilliseconds(duration_ms));
 984 }
 985
 986 void SystemTrayDelegateChromeOS::UpdateSessionStartTime() {
 987   const PrefService* local_state = local_state_registrar_->prefs();
 988   if (local_state->HasPrefPath(prefs::kSessionStartTime)) {
 989     have_session_start_time_ = true;
 990     session_start_time_ = base::TimeTicks::FromInternalValue(
 991         local_state->GetInt64(prefs::kSessionStartTime));
 992   } else {
 993     have_session_start_time_ = false;
 994     session_start_time_ = base::TimeTicks();
 995   }
 996   GetSystemTrayNotifier()->NotifySessionStartTimeChanged();
 997 }
 998
 999 void SystemTrayDelegateChromeOS::UpdateSessionLengthLimit() {
1000   const PrefService* local_state = local_state_registrar_->prefs();
1001   if (local_state->HasPrefPath(prefs::kSessionLengthLimit)) {
1002     have_session_length_limit_ = true;
1003     session_length_limit_ = base::TimeDelta::FromMilliseconds(
1004         std::min(std::max(local_state->GetInteger(prefs::kSessionLengthLimit),
1005                           kSessionLengthLimitMinMs),
1006                  kSessionLengthLimitMaxMs));
1007   } else {
1008     have_session_length_limit_ = false;
1009     session_length_limit_ = base::TimeDelta();
1010   }
1011   GetSystemTrayNotifier()->NotifySessionLengthLimitChanged();
1012 }
1013
1014 void SystemTrayDelegateChromeOS::StopObservingAppWindowRegistry() {
1015   if (!user_profile_)
1016     return;
1017
1018   extensions::AppWindowRegistry* registry =
1019       extensions::AppWindowRegistry::Factory::GetForBrowserContext(
1020           user_profile_, false);
1021   if (registry)
1022     registry->RemoveObserver(this);
1023 }
1024
1025 void SystemTrayDelegateChromeOS::StopObservingCustodianInfoChanges() {
1026   if (!user_profile_)
1027     return;
1028
1029   SupervisedUserService* service = SupervisedUserServiceFactory::GetForProfile(
1030       user_profile_);
1031   if (service)
1032     service->RemoveObserver(this);
1033 }
1034
1035 void SystemTrayDelegateChromeOS::NotifyIfLastWindowClosed() {
1036   if (!user_profile_)
1037     return;
1038
1039   BrowserList* browser_list =
1040       BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_ASH);
1041   for (BrowserList::const_iterator it = browser_list->begin();
1042        it != browser_list->end();
1043        ++it) {
1044     if ((*it)->profile()->IsSameProfile(user_profile_)) {
1045       // The current user has at least one open browser window.
1046       return;
1047     }
1048   }
1049
1050   if (!extensions::AppWindowRegistry::Get(
1051           user_profile_)->app_windows().empty()) {
1052     // The current user has at least one open app window.
1053     return;
1054   }
1055
1056   GetSystemTrayNotifier()->NotifyLastWindowClosed();
1057 }
1058
1059 // Overridden from SessionManagerClient::Observer.
1060 void SystemTrayDelegateChromeOS::ScreenIsLocked() {
1061   screen_locked_ = true;
1062   ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(GetUserLoginStatus());
1063 }
1064
1065 void SystemTrayDelegateChromeOS::ScreenIsUnlocked() {
1066   screen_locked_ = false;
1067   ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(GetUserLoginStatus());
1068 }
1069
1070 gfx::NativeWindow SystemTrayDelegateChromeOS::GetNativeWindow() const {
1071   bool session_started = ash::Shell::GetInstance()
1072                              ->session_state_delegate()
1073                              ->IsActiveUserSessionStarted();
1074   return GetNativeWindowByStatus(GetUserLoginStatus(), session_started);
1075 }
1076
1077 // content::NotificationObserver implementation.
1078 void SystemTrayDelegateChromeOS::Observe(
1079     int type,
1080     const content::NotificationSource& source,
1081     const content::NotificationDetails& details) {
1082   switch (type) {
1083     case chrome::NOTIFICATION_UPGRADE_RECOMMENDED: {
1084       ash::UpdateInfo info;
1085       GetUpdateInfo(content::Source<UpgradeDetector>(source).ptr(), &info);
1086       GetSystemTrayNotifier()->NotifyUpdateRecommended(info);
1087       break;
1088     }
1089     case chrome::NOTIFICATION_LOGIN_USER_IMAGE_CHANGED: {
1090       // This notification is also sent on login screen when user avatar
1091       // is loaded from file.
1092       if (GetUserLoginStatus() != ash::user::LOGGED_IN_NONE) {
1093         GetSystemTrayNotifier()->NotifyUserUpdate();
1094       }
1095       break;
1096     }
1097     case chrome::NOTIFICATION_PROFILE_CREATED: {
1098       SetProfile(content::Source<Profile>(source).ptr());
1099       registrar_->Remove(this,
1100                          chrome::NOTIFICATION_PROFILE_CREATED,
1101                          content::NotificationService::AllSources());
1102       break;
1103     }
1104     case chrome::NOTIFICATION_PROFILE_DESTROYED: {
1105       if (UnsetProfile(content::Source<Profile>(source).ptr())) {
1106         registrar_->Remove(this,
1107                            chrome::NOTIFICATION_PROFILE_DESTROYED,
1108                            content::NotificationService::AllSources());
1109       }
1110       break;
1111     }
1112     case chrome::NOTIFICATION_SESSION_STARTED: {
1113       session_started_ = true;
1114       ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
1115           GetUserLoginStatus());
1116       SetProfile(ProfileManager::GetActiveUserProfile());
1117       break;
1118     }
1119     default:
1120       NOTREACHED();
1121   }
1122 }
1123
1124 void SystemTrayDelegateChromeOS::OnLanguageRemapSearchKeyToChanged() {
1125   search_key_mapped_to_ = user_pref_registrar_->prefs()->GetInteger(
1126       prefs::kLanguageRemapSearchKeyTo);
1127 }
1128
1129 void SystemTrayDelegateChromeOS::OnAccessibilityModeChanged(
1130     ui::AccessibilityNotificationVisibility notify) {
1131   GetSystemTrayNotifier()->NotifyAccessibilityModeChanged(notify);
1132 }
1133
1134 void SystemTrayDelegateChromeOS::UpdatePerformanceTracing() {
1135   if (!user_pref_registrar_)
1136     return;
1137   bool value = user_pref_registrar_->prefs()->GetBoolean(
1138       prefs::kPerformanceTracingEnabled);
1139   GetSystemTrayNotifier()->NotifyTracingModeChanged(value);
1140 }
1141
1142 // Overridden from InputMethodManager::Observer.
1143 void SystemTrayDelegateChromeOS::InputMethodChanged(
1144     input_method::InputMethodManager* manager,
1145     Profile* /* profile */,
1146     bool show_message) {
1147   GetSystemTrayNotifier()->NotifyRefreshIME();
1148 }
1149
1150 // Overridden from InputMethodMenuManager::Observer.
1151 void SystemTrayDelegateChromeOS::InputMethodMenuItemChanged(
1152     ui::ime::InputMethodMenuManager* manager) {
1153   GetSystemTrayNotifier()->NotifyRefreshIME();
1154 }
1155
1156 // Overridden from CrasAudioHandler::AudioObserver.
1157 void SystemTrayDelegateChromeOS::OnOutputNodeVolumeChanged(uint64_t node_id,
1158                                                            int volume) {
1159   GetSystemTrayNotifier()->NotifyAudioOutputVolumeChanged(node_id, volume);
1160 }
1161
1162 void SystemTrayDelegateChromeOS::OnOutputMuteChanged(bool mute_on,
1163                                                      bool system_adjust) {
1164   GetSystemTrayNotifier()->NotifyAudioOutputMuteChanged(mute_on, system_adjust);
1165 }
1166
1167 void SystemTrayDelegateChromeOS::OnInputNodeGainChanged(uint64_t /* node_id */,
1168                                                         int /* gain */) {
1169 }
1170
1171 void SystemTrayDelegateChromeOS::OnInputMuteChanged(bool /* mute_on */) {
1172 }
1173
1174 void SystemTrayDelegateChromeOS::OnAudioNodesChanged() {
1175   GetSystemTrayNotifier()->NotifyAudioNodesChanged();
1176 }
1177
1178 void SystemTrayDelegateChromeOS::OnActiveOutputNodeChanged() {
1179   GetSystemTrayNotifier()->NotifyAudioActiveOutputNodeChanged();
1180 }
1181
1182 void SystemTrayDelegateChromeOS::OnActiveInputNodeChanged() {
1183   GetSystemTrayNotifier()->NotifyAudioActiveInputNodeChanged();
1184 }
1185
1186 // Overridden from BluetoothAdapter::Observer.
1187 void SystemTrayDelegateChromeOS::AdapterPresentChanged(
1188     device::BluetoothAdapter* adapter,
1189     bool present) {
1190   GetSystemTrayNotifier()->NotifyRefreshBluetooth();
1191 }
1192
1193 void SystemTrayDelegateChromeOS::AdapterPoweredChanged(
1194     device::BluetoothAdapter* adapter,
1195     bool powered) {
1196   GetSystemTrayNotifier()->NotifyRefreshBluetooth();
1197 }
1198
1199 void SystemTrayDelegateChromeOS::AdapterDiscoveringChanged(
1200     device::BluetoothAdapter* adapter,
1201     bool discovering) {
1202   GetSystemTrayNotifier()->NotifyBluetoothDiscoveringChanged();
1203 }
1204
1205 void SystemTrayDelegateChromeOS::DeviceAdded(device::BluetoothAdapter* adapter,
1206                                              device::BluetoothDevice* device) {
1207   GetSystemTrayNotifier()->NotifyRefreshBluetooth();
1208 }
1209
1210 void SystemTrayDelegateChromeOS::DeviceChanged(
1211     device::BluetoothAdapter* adapter,
1212     device::BluetoothDevice* device) {
1213   GetSystemTrayNotifier()->NotifyRefreshBluetooth();
1214 }
1215
1216 void SystemTrayDelegateChromeOS::DeviceRemoved(
1217     device::BluetoothAdapter* adapter,
1218     device::BluetoothDevice* device) {
1219   GetSystemTrayNotifier()->NotifyRefreshBluetooth();
1220 }
1221
1222 void SystemTrayDelegateChromeOS::OnStartBluetoothDiscoverySession(
1223     scoped_ptr<device::BluetoothDiscoverySession> discovery_session) {
1224   // If the discovery session was returned after a request to stop discovery
1225   // (e.g. the user dismissed the Bluetooth detailed view before the call
1226   // returned), don't claim the discovery session and let it clean up.
1227   if (!should_run_bluetooth_discovery_)
1228     return;
1229   VLOG(1) << "Claiming new Bluetooth device discovery session.";
1230   bluetooth_discovery_session_ = discovery_session.Pass();
1231   GetSystemTrayNotifier()->NotifyBluetoothDiscoveringChanged();
1232 }
1233
1234 void SystemTrayDelegateChromeOS::UpdateEnterpriseDomain() {
1235   policy::BrowserPolicyConnectorChromeOS* connector =
1236       g_browser_process->platform_part()->browser_policy_connector_chromeos();
1237   std::string enterprise_domain = connector->GetEnterpriseDomain();
1238   if (enterprise_domain_ != enterprise_domain) {
1239     enterprise_domain_ = enterprise_domain;
1240     GetSystemTrayNotifier()->NotifyEnterpriseDomainChanged();
1241   }
1242 }
1243
1244 // Overridden from CloudPolicyStore::Observer
1245 void SystemTrayDelegateChromeOS::OnStoreLoaded(
1246     policy::CloudPolicyStore* store) {
1247   UpdateEnterpriseDomain();
1248 }
1249
1250 void SystemTrayDelegateChromeOS::OnStoreError(policy::CloudPolicyStore* store) {
1251   UpdateEnterpriseDomain();
1252 }
1253
1254 // Overridden from ash::SessionStateObserver
1255 void SystemTrayDelegateChromeOS::UserAddedToSession(
1256     const std::string& user_id) {
1257   GetSystemTrayNotifier()->NotifyUserAddedToSession();
1258 }
1259
1260 void SystemTrayDelegateChromeOS::ActiveUserChanged(
1261     const std::string& /* user_id */) {
1262 }
1263
1264 // Overridden from chrome::BrowserListObserver.
1265 void SystemTrayDelegateChromeOS::OnBrowserRemoved(Browser* browser) {
1266   NotifyIfLastWindowClosed();
1267 }
1268
1269 // Overridden from extensions::AppWindowRegistry::Observer.
1270 void SystemTrayDelegateChromeOS::OnAppWindowRemoved(
1271     extensions::AppWindow* app_window) {
1272   NotifyIfLastWindowClosed();
1273 }
1274
1275 // Overridden from SupervisedUserServiceObserver.
1276 void SystemTrayDelegateChromeOS::OnCustodianInfoChanged() {
1277   FOR_EACH_OBSERVER(
1278       ash::CustodianInfoTrayObserver, custodian_info_changed_observers_,
1279       OnCustodianInfoChanged());
1280 }
1281
1282 void SystemTrayDelegateChromeOS::OnAccessibilityStatusChanged(
1283     const AccessibilityStatusEventDetails& details) {
1284   if (details.notification_type == ACCESSIBILITY_MANAGER_SHUTDOWN)
1285     accessibility_subscription_.reset();
1286   else
1287     OnAccessibilityModeChanged(details.notify);
1288 }
1289
1290 void SystemTrayDelegateChromeOS::OnShutdownPolicyChanged(
1291     bool reboot_on_shutdown) {
1292   // Notify all observers.
1293   FOR_EACH_OBSERVER(ash::ShutdownPolicyObserver, shutdown_policy_observers_,
1294                     OnShutdownPolicyChanged(reboot_on_shutdown));
1295 }
1296
1297 const base::string16
1298 SystemTrayDelegateChromeOS::GetLegacySupervisedUserMessage() const {
1299   std::string user_manager_name = GetSupervisedUserManager();
1300   return l10n_util::GetStringFUTF16(
1301       IDS_USER_IS_SUPERVISED_BY_NOTICE,
1302       base::UTF8ToUTF16(user_manager_name));
1303 }
1304
1305 const base::string16
1306 SystemTrayDelegateChromeOS::GetChildUserMessage() const {
1307 #if defined(ENABLE_SUPERVISED_USERS)
1308   SupervisedUserService* service =
1309       SupervisedUserServiceFactory::GetForProfile(user_profile_);
1310   base::string16 first_custodian =
1311       base::UTF8ToUTF16(service->GetCustodianEmailAddress());
1312   base::string16 second_custodian =
1313       base::UTF8ToUTF16(service->GetSecondCustodianEmailAddress());
1314   LOG_IF(WARNING, first_custodian.empty()) <<
1315       "Returning incomplete child user message as manager not known yet.";
1316   if (second_custodian.empty()) {
1317     return l10n_util::GetStringFUTF16(
1318         IDS_CHILD_USER_IS_MANAGED_BY_ONE_PARENT_NOTICE, first_custodian);
1319   } else {
1320     return l10n_util::GetStringFUTF16(
1321         IDS_CHILD_USER_IS_MANAGED_BY_TWO_PARENTS_NOTICE,
1322         first_custodian,
1323         second_custodian);
1324   }
1325 #endif
1326
1327   LOG(WARNING) << "SystemTrayDelegateChromeOS::GetChildUserMessage call while "
1328                << "ENABLE_SUPERVISED_USERS undefined.";
1329   return base::string16();
1330 }
1331
1332 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
1333   return new SystemTrayDelegateChromeOS();
1334 }
1335
1336 }  // namespace chromeos