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/rect.h"
20#include "ui/gfx/size.h"
21
22namespace chromeos {
23
24namespace {
25
26class UserAddingScreenImpl : public UserAddingScreen {
27 public:
28  virtual void Start() OVERRIDE;
29  virtual void Cancel() OVERRIDE;
30  virtual bool IsRunning() OVERRIDE;
31
32  virtual void AddObserver(Observer* observer) OVERRIDE;
33  virtual void RemoveObserver(Observer* observer) OVERRIDE;
34
35  static UserAddingScreenImpl* GetInstance();
36 private:
37  friend struct DefaultSingletonTraits<UserAddingScreenImpl>;
38
39  void OnDisplayHostCompletion();
40
41  UserAddingScreenImpl();
42  virtual ~UserAddingScreenImpl();
43
44  ObserverList<Observer> observers_;
45  LoginDisplayHost* display_host_;
46
47  UserAddingScreenInputMethodsController im_controller_;
48};
49
50void 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
63void 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
77bool UserAddingScreenImpl::IsRunning() {
78  return display_host_ != NULL;
79}
80
81void UserAddingScreenImpl::AddObserver(Observer* observer) {
82  observers_.AddObserver(observer);
83}
84
85void UserAddingScreenImpl::RemoveObserver(Observer* observer) {
86  observers_.RemoveObserver(observer);
87}
88
89void 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
99UserAddingScreenImpl* UserAddingScreenImpl::GetInstance() {
100  return Singleton<UserAddingScreenImpl>::get();
101}
102
103UserAddingScreenImpl::UserAddingScreenImpl()
104    : display_host_(NULL), im_controller_(this) {
105}
106
107UserAddingScreenImpl::~UserAddingScreenImpl() {
108}
109
110}  // anonymous namespace
111
112UserAddingScreen::UserAddingScreen() {}
113UserAddingScreen::~UserAddingScreen() {}
114
115UserAddingScreen* UserAddingScreen::Get() {
116  return UserAddingScreenImpl::GetInstance();
117}
118
119}  // namespace chromeos
120
121