chrome/browser/chromeos/login/ui/user_adding_screen.cc

   1 // Copyright 2014 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/ui/user_adding_screen.h"
   6
   7 #include "ash/shell.h"
   8 #include "ash/system/tray/system_tray.h"
   9 #include "base/bind.h"
  10 #include "base/memory/singleton.h"
  11 #include "base/observer_list.h"
  12 #include "chrome/browser/browser_process.h"
  13 #include "chrome/browser/chromeos/login/helper.h"
  14 #include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
  15 #include "chrome/browser/chromeos/login/ui/user_adding_screen_input_methods_controller.h"
  16 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
  17 #include "components/session_manager/core/session_manager.h"
  18 #include "components/user_manager/user_manager.h"
  19 #include "ui/gfx/geometry/rect.h"
  20 #include "ui/gfx/geometry/size.h"
  21
  22 namespace chromeos {
  23
  24 namespace {
  25
  26 class UserAddingScreenImpl : public UserAddingScreen {
  27  public:
  28   void Start() override;
  29   void Cancel() override;
  30   bool IsRunning() override;
  31
  32   void AddObserver(Observer* observer) override;
  33   void RemoveObserver(Observer* observer) override;
  34
  35   static UserAddingScreenImpl* GetInstance();
  36  private:
  37   friend struct base::DefaultSingletonTraits<UserAddingScreenImpl>;
  38
  39   void OnDisplayHostCompletion();
  40
  41   UserAddingScreenImpl();
  42   ~UserAddingScreenImpl() override;
  43
  44   base::ObserverList<Observer> observers_;
  45   LoginDisplayHost* display_host_;
  46
  47   UserAddingScreenInputMethodsController im_controller_;
  48 };
  49
  50 void UserAddingScreenImpl::Start() {
  51   CHECK(!IsRunning());
  52   gfx::Rect screen_bounds(chromeos::CalculateScreenBounds(gfx::Size()));
  53   display_host_ = new chromeos::LoginDisplayHostImpl(screen_bounds);
  54   display_host_->StartUserAdding(
  55       base::Bind(&UserAddingScreenImpl::OnDisplayHostCompletion,
  56                  base::Unretained(this)));
  57
  58   g_browser_process->platform_part()->SessionManager()->SetSessionState(
  59       session_manager::SESSION_STATE_LOGIN_SECONDARY);
  60   FOR_EACH_OBSERVER(Observer, observers_, OnUserAddingStarted());
  61 }
  62
  63 void UserAddingScreenImpl::Cancel() {
  64   CHECK(IsRunning());
  65
  66   // Make sure that system tray is enabled after this flow.
  67   ash::Shell::GetInstance()->GetPrimarySystemTray()->SetEnabled(true);
  68   display_host_->Finalize();
  69
  70   // Reset wallpaper if cancel adding user from multiple user sign in page.
  71   if (user_manager::UserManager::Get()->IsUserLoggedIn()) {
  72     WallpaperManager::Get()->SetUserWallpaperDelayed(
  73         user_manager::UserManager::Get()->GetActiveUser()->email());
  74   }
  75 }
  76
  77 bool UserAddingScreenImpl::IsRunning() {
  78   return display_host_ != NULL;
  79 }
  80
  81 void UserAddingScreenImpl::AddObserver(Observer* observer) {
  82   observers_.AddObserver(observer);
  83 }
  84
  85 void UserAddingScreenImpl::RemoveObserver(Observer* observer) {
  86   observers_.RemoveObserver(observer);
  87 }
  88
  89 void UserAddingScreenImpl::OnDisplayHostCompletion() {
  90   CHECK(IsRunning());
  91   display_host_ = NULL;
  92
  93   g_browser_process->platform_part()->SessionManager()->SetSessionState(
  94       session_manager::SESSION_STATE_ACTIVE);
  95   FOR_EACH_OBSERVER(Observer, observers_, OnUserAddingFinished());
  96 }
  97
  98 // static
  99 UserAddingScreenImpl* UserAddingScreenImpl::GetInstance() {
 100   return base::Singleton<UserAddingScreenImpl>::get();
 101 }
 102
 103 UserAddingScreenImpl::UserAddingScreenImpl()
 104     : display_host_(NULL), im_controller_(this) {
 105 }
 106
 107 UserAddingScreenImpl::~UserAddingScreenImpl() {
 108 }
 109
 110 }  // anonymous namespace
 111
 112 UserAddingScreen::UserAddingScreen() {}
 113 UserAddingScreen::~UserAddingScreen() {}
 114
 115 UserAddingScreen* UserAddingScreen::Get() {
 116   return UserAddingScreenImpl::GetInstance();
 117 }
 118
 119 }  // namespace chromeos
 120