chrome/browser/chromeos/login/signin_screen_controller.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_SIGNIN_SCREEN_CONTROLLER_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_SCREEN_CONTROLLER_H_
   7
   8 #include "chrome/browser/chromeos/login/screens/gaia_screen.h"
   9 #include "chrome/browser/chromeos/login/screens/user_selection_screen.h"
  10 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
  11 #include "chrome/browser/chromeos/login/ui/oobe_display.h"
  12 #include "components/user_manager/remove_user_delegate.h"
  13 #include "components/user_manager/user.h"
  14 #include "content/public/browser/notification_observer.h"
  15 #include "content/public/browser/notification_registrar.h"
  16
  17 namespace chromeos {
  18
  19 class LoginDisplayWebUIHandler;
  20
  21 // Class that manages control flow between wizard screens. Wizard controller
  22 // interacts with screen controllers to move the user between screens.
  23 class SignInScreenController : public user_manager::RemoveUserDelegate,
  24                                public content::NotificationObserver {
  25  public:
  26   SignInScreenController(OobeDisplay* oobe_display,
  27                          LoginDisplay::Delegate* login_display_delegate);
  28   ~SignInScreenController() override;
  29
  30   // Returns the default wizard controller if it has been created.
  31   static SignInScreenController* Get() { return instance_; }
  32
  33   void SetWebUIHandler(LoginDisplayWebUIHandler* webui_handler);
  34
  35   // Set up the list of users for user selection screen.
  36   // TODO(antrim): replace with querying for this data.
  37   void Init(const user_manager::UserList& users, bool show_guest);
  38
  39   // Called when signin screen is ready.
  40   void OnSigninScreenReady();
  41
  42   // Query to send list of users to user selection screen.
  43   void SendUserList();
  44
  45   // Provide current list of users on user selection screen.
  46   const user_manager::UserList& GetUsers();
  47
  48   // Query to remove user with specified id.
  49   // TODO(antrim): move to user selection screen handler.
  50   void RemoveUser(const std::string& user_id);
  51
  52   // user_manager::RemoveUserDelegate implementation:
  53   void OnBeforeUserRemoved(const std::string& username) override;
  54   void OnUserRemoved(const std::string& username) override;
  55
  56   // content::NotificationObserver implementation.
  57   void Observe(int type,
  58                const content::NotificationSource& source,
  59                const content::NotificationDetails& details) override;
  60
  61  private:
  62   static SignInScreenController* instance_;
  63
  64   OobeDisplay* oobe_display_;
  65
  66   // Reference to the WebUI handling layer for the login screen
  67   LoginDisplayWebUIHandler* webui_handler_;
  68
  69   scoped_ptr<GaiaScreen> gaia_screen_;
  70   scoped_ptr<UserSelectionScreen> user_selection_screen_;
  71
  72   // Used for notifications during the login process.
  73   content::NotificationRegistrar registrar_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(SignInScreenController);
  76 };
  77
  78 }  // namespace chromeos
  79
  80 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_SCREEN_CONTROLLER_H_