chrome/browser/chromeos/login/login_display_host_impl.h

   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 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_HOST_IMPL_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_HOST_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "chrome/browser/chromeos/login/app_launch_controller.h"
  15 #include "chrome/browser/chromeos/login/auth_prewarmer.h"
  16 #include "chrome/browser/chromeos/login/existing_user_controller.h"
  17 #include "chrome/browser/chromeos/login/login_display.h"
  18 #include "chrome/browser/chromeos/login/login_display_host.h"
  19 #include "chrome/browser/chromeos/login/wizard_controller.h"
  20 #include "chrome/browser/chromeos/settings/device_settings_service.h"
  21 #include "content/public/browser/notification_observer.h"
  22 #include "content/public/browser/notification_registrar.h"
  23 #include "content/public/browser/web_contents_observer.h"
  24 #include "ui/gfx/rect.h"
  25
  26 class PrefService;
  27
  28 namespace policy {
  29 class AutoEnrollmentClient;
  30 }  // namespace policy
  31
  32 namespace chromeos {
  33
  34 class FocusRingController;
  35 class OobeUI;
  36 class WebUILoginDisplay;
  37 class WebUILoginView;
  38
  39 // An implementation class for OOBE/login WebUI screen host.
  40 // It encapsulates controllers, background integration and flow.
  41 class LoginDisplayHostImpl : public LoginDisplayHost,
  42                              public content::NotificationObserver,
  43                              public content::WebContentsObserver {
  44  public:
  45   explicit LoginDisplayHostImpl(const gfx::Rect& background_bounds);
  46   virtual ~LoginDisplayHostImpl();
  47
  48   // Returns the default LoginDispalyHost instance if it has been created.
  49   static LoginDisplayHost* default_host() {
  50     return default_host_;
  51   }
  52
  53   // LoginDisplayHost implementation:
  54   virtual LoginDisplay* CreateLoginDisplay(
  55       LoginDisplay::Delegate* delegate) OVERRIDE;
  56   virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
  57   virtual WebUILoginView* GetWebUILoginView() const OVERRIDE;
  58   virtual void BeforeSessionStart() OVERRIDE;
  59   virtual void Finalize() OVERRIDE;
  60   virtual void OnCompleteLogin() OVERRIDE;
  61   virtual void OpenProxySettings() OVERRIDE;
  62   virtual void SetStatusAreaVisible(bool visible) OVERRIDE;
  63   virtual void CheckForAutoEnrollment() OVERRIDE;
  64   virtual void GetAutoEnrollmentCheckResult(
  65       const GetAutoEnrollmentCheckResultCallback& callback) OVERRIDE;
  66   virtual void StartWizard(
  67       const std::string& first_screen_name,
  68       scoped_ptr<DictionaryValue> screen_parameters) OVERRIDE;
  69   virtual WizardController* GetWizardController() OVERRIDE;
  70   virtual AppLaunchController* GetAppLaunchController() OVERRIDE;
  71   virtual void StartUserAdding(
  72       const base::Closure& completion_callback) OVERRIDE;
  73   virtual void StartSignInScreen() OVERRIDE;
  74   virtual void ResumeSignInScreen() OVERRIDE;
  75   virtual void OnPreferencesChanged() OVERRIDE;
  76   virtual void PrewarmAuthentication() OVERRIDE;
  77   virtual void StartAppLaunch(const std::string& app_id) OVERRIDE;
  78
  79   // Creates WizardController instance.
  80   WizardController* CreateWizardController();
  81
  82   // Called when the first browser window is created, but before it's shown.
  83   void OnBrowserCreated();
  84
  85   // Returns instance of the OOBE WebUI.
  86   OobeUI* GetOobeUI() const;
  87
  88   const gfx::Rect& background_bounds() const { return background_bounds_; }
  89
  90   // Trace id for ShowLoginWebUI event (since there exists at most one login
  91   // WebUI at a time).
  92   static const int kShowLoginWebUIid;
  93
  94   views::Widget* login_window_for_test() { return login_window_; }
  95
  96  protected:
  97   // content::NotificationObserver implementation:
  98   virtual void Observe(int type,
  99                        const content::NotificationSource& source,
 100                        const content::NotificationDetails& details) OVERRIDE;
 101
 102   // Overridden from content::WebContentsObserver:
 103   virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
 104
 105  private:
 106   // Marks display host for deletion.
 107   // If |post_quit_task| is true also posts Quit task to the MessageLoop.
 108   void ShutdownDisplayHost(bool post_quit_task);
 109
 110   // Start sign in transition animation.
 111   void StartAnimation();
 112
 113   // Callback for the ownership status check.
 114   void OnOwnershipStatusCheckDone(
 115       DeviceSettingsService::OwnershipStatus status);
 116
 117   // Callback for completion of the |auto_enrollment_client_|.
 118   void OnAutoEnrollmentClientDone();
 119
 120   // Forces auto-enrollment on the appropriate controller.
 121   void ForceAutoEnrollment();
 122
 123   // Loads given URL. Creates WebUILoginView if needed.
 124   void LoadURL(const GURL& url);
 125
 126   // Shows OOBE/sign in WebUI that was previously initialized in hidden state.
 127   void ShowWebUI();
 128
 129   // Starts postponed WebUI (OOBE/sign in) if it was waiting for
 130   // wallpaper animation end.
 131   void StartPostponedWebUI();
 132
 133   // Initializes |login_window_| and |login_view_| fields if needed.
 134   void InitLoginWindowAndView();
 135
 136   // Closes |login_window_| and resets |login_window_| and |login_view_| fields.
 137   void ResetLoginWindowAndView();
 138
 139   // Returns true if hosr running UI for adding users into session.
 140   bool IsRunningUserAdding();
 141
 142   // Deletes |auth_prewarmer_|.
 143   void OnAuthPrewarmDone();
 144
 145   // Toggles OOBE progress bar visibility, the bar is hidden by default.
 146   void SetOobeProgressBarVisible(bool visible);
 147
 148   // Notifies the interested parties of the auto enrollment check result.
 149   void NotifyAutoEnrollmentCheckResult(bool should_auto_enroll);
 150
 151   // Used to calculate position of the screens and background.
 152   gfx::Rect background_bounds_;
 153
 154   content::NotificationRegistrar registrar_;
 155
 156   base::WeakPtrFactory<LoginDisplayHostImpl> pointer_factory_;
 157
 158   // Default LoginDisplayHost.
 159   static LoginDisplayHost* default_host_;
 160
 161   // Sign in screen controller.
 162   scoped_ptr<ExistingUserController> sign_in_controller_;
 163
 164   // OOBE and some screens (camera, recovery) controller.
 165   scoped_ptr<WizardController> wizard_controller_;
 166
 167   // App launch controller.
 168   scoped_ptr<AppLaunchController> app_launch_controller_;
 169
 170   // Client for enterprise auto-enrollment check.
 171   scoped_ptr<policy::AutoEnrollmentClient> auto_enrollment_client_;
 172
 173   // Has ShutdownDisplayHost() already been called?  Used to avoid posting our
 174   // own deletion to the message loop twice if the user logs out while we're
 175   // still in the process of cleaning up after login (http://crbug.com/134463).
 176   bool shutting_down_;
 177
 178   // Whether progress bar is shown on the OOBE page.
 179   bool oobe_progress_bar_visible_;
 180
 181   // True if session start is in progress.
 182   bool session_starting_;
 183
 184   // Container of the screen we are displaying.
 185   views::Widget* login_window_;
 186
 187   // Container of the view we are displaying.
 188   WebUILoginView* login_view_;
 189
 190   // Login display we are using.
 191   WebUILoginDisplay* webui_login_display_;
 192
 193   // True if the login display is the current screen.
 194   bool is_showing_login_;
 195
 196   // True if NOTIFICATION_WALLPAPER_ANIMATION_FINISHED notification has been
 197   // received.
 198   bool is_wallpaper_loaded_;
 199
 200   // Stores status area current visibility to be applied once login WebUI
 201   // is shown.
 202   bool status_area_saved_visibility_;
 203
 204   // If true, WebUI is initialized in a hidden state and shown after the
 205   // wallpaper animation is finished (when it is enabled) or the user pods have
 206   // been loaded (otherwise).
 207   // By default is true. Could be used to tune performance if needed.
 208   bool initialize_webui_hidden_;
 209
 210   // True if WebUI is initialized in hidden state and we're waiting for
 211   // wallpaper load animation to finish.
 212   bool waiting_for_wallpaper_load_;
 213
 214   // True if WebUI is initialized in hidden state and we're waiting for user
 215   // pods to load.
 216   bool waiting_for_user_pods_;
 217
 218   // How many times renderer has crashed.
 219   int crash_count_;
 220
 221   // Way to restore if renderer have crashed.
 222   enum {
 223     RESTORE_UNKNOWN,
 224     RESTORE_WIZARD,
 225     RESTORE_SIGN_IN,
 226     RESTORE_ADD_USER_INTO_SESSION,
 227   } restore_path_;
 228
 229   // Stored parameters for StartWizard, required to restore in case of crash.
 230   std::string wizard_first_screen_name_;
 231   scoped_ptr<DictionaryValue> wizard_screen_parameters_;
 232
 233   // Old value of the ash::internal::kIgnoreSoloWindowFramePainterPolicy
 234   // property of the root window for |login_window_|.
 235   bool old_ignore_solo_window_frame_painter_policy_value_;
 236
 237   // Called before host deletion.
 238   base::Closure completion_callback_;
 239
 240   // Active instance of authentication prewarmer.
 241   scoped_ptr<AuthPrewarmer> auth_prewarmer_;
 242
 243   // A focus ring controller to draw focus ring around view for keyboard
 244   // driven oobe.
 245   scoped_ptr<FocusRingController> focus_ring_controller_;
 246
 247   // Whether auto enrollment client has done the check.
 248   bool auto_enrollment_check_done_;
 249
 250   // Callbacks to notify when auto enrollment client has done the check.
 251   std::vector<GetAutoEnrollmentCheckResultCallback>
 252       get_auto_enrollment_result_callbacks_;
 253
 254   DISALLOW_COPY_AND_ASSIGN(LoginDisplayHostImpl);
 255 };
 256
 257 }  // namespace chromeos
 258
 259 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_HOST_IMPL_H_