chrome/browser/chromeos/login/signin_screen_controller.cc

   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/login/signin_screen_controller.h"
   6
   7 #include "chrome/browser/chrome_notification_types.h"
   8 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
   9 #include "chrome/browser/chromeos/login/screens/chrome_user_selection_screen.h"
  10 #include "chrome/browser/chromeos/login/ui/views/user_board_view.h"
  11 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
  12 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
  13
  14 namespace chromeos {
  15
  16 SignInScreenController* SignInScreenController::instance_ = nullptr;
  17
  18 SignInScreenController::SignInScreenController(
  19     OobeDisplay* oobe_display,
  20     LoginDisplay::Delegate* login_display_delegate)
  21     : oobe_display_(oobe_display),
  22       webui_handler_(NULL),
  23       gaia_screen_(new GaiaScreen()) {
  24   DCHECK(instance_ == NULL);
  25   instance_ = this;
  26
  27   gaia_screen_->SetScreenHandler(oobe_display_->GetGaiaScreenActor());
  28   std::string display_type = static_cast<OobeUI*>(oobe_display)->display_type();
  29   user_selection_screen_.reset(new ChromeUserSelectionScreen(display_type));
  30   user_selection_screen_->SetLoginDisplayDelegate(login_display_delegate);
  31
  32   UserBoardView* user_board_view = oobe_display_->GetUserBoardScreenActor();
  33   user_selection_screen_->SetView(user_board_view);
  34   user_board_view->Bind(*user_selection_screen_.get());
  35
  36   registrar_.Add(this, chrome::NOTIFICATION_LOGIN_USER_IMAGE_CHANGED,
  37                  content::NotificationService::AllSources());
  38   registrar_.Add(this, chrome::NOTIFICATION_SESSION_STARTED,
  39                  content::NotificationService::AllSources());
  40 }
  41
  42 SignInScreenController::~SignInScreenController() {
  43   instance_ = nullptr;
  44 }
  45
  46 void SignInScreenController::Init(const user_manager::UserList& users,
  47                                   bool show_guest) {
  48   // TODO(antrim) : This dependency should be inverted, screen should ask about
  49   // users.
  50   user_selection_screen_->Init(users, show_guest);
  51 }
  52
  53 void SignInScreenController::OnSigninScreenReady() {
  54   gaia_screen_->MaybePreloadAuthExtension();
  55   user_selection_screen_->InitEasyUnlock();
  56   if (ScreenLocker::default_screen_locker()) {
  57     ScreenLocker::default_screen_locker()->delegate()->OnLockWebUIReady();
  58   }
  59 }
  60
  61 void SignInScreenController::RemoveUser(const std::string& user_id) {
  62   user_manager::UserManager::Get()->RemoveUser(user_id, this);
  63 }
  64
  65 void SignInScreenController::OnBeforeUserRemoved(const std::string& username) {
  66   user_selection_screen_->OnBeforeUserRemoved(username);
  67 }
  68
  69 void SignInScreenController::OnUserRemoved(const std::string& username) {
  70   user_selection_screen_->OnUserRemoved(username);
  71 }
  72
  73 void SignInScreenController::SendUserList() {
  74   user_selection_screen_->HandleGetUsers();
  75 }
  76
  77 const user_manager::UserList& SignInScreenController::GetUsers() {
  78   return user_selection_screen_->GetUsers();
  79 }
  80
  81 void SignInScreenController::CheckUserStatus(const std::string& user_id) {
  82   user_selection_screen_->CheckUserStatus(user_id);
  83 }
  84
  85 void SignInScreenController::SetWebUIHandler(
  86     LoginDisplayWebUIHandler* webui_handler) {
  87   webui_handler_ = webui_handler;
  88   gaia_screen_->SetLegacyHandler(webui_handler_);
  89   user_selection_screen_->SetHandler(webui_handler_);
  90 }
  91
  92 void SignInScreenController::Observe(
  93     int type,
  94     const content::NotificationSource& source,
  95     const content::NotificationDetails& details) {
  96   if (type == chrome::NOTIFICATION_SESSION_STARTED) {
  97     // Stop listening to any notification once session has started.
  98     // Sign in screen objects are marked for deletion with DeleteSoon so
  99     // make sure no object would be used after session has started.
 100     // http://crbug.com/125276
 101     registrar_.RemoveAll();
 102     return;
 103   } else if (type == chrome::NOTIFICATION_LOGIN_USER_IMAGE_CHANGED) {
 104     user_selection_screen_->OnUserImageChanged(
 105         *content::Details<user_manager::User>(details).ptr());
 106     return;
 107   }
 108 }
 109
 110 }  // namespace chromeos