src/chrome/browser/chromeos/login/screens/error_screen.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_SCREENS_ERROR_SCREEN_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "chrome/browser/chromeos/login/auth/login_performer.h"
  13 #include "chrome/browser/chromeos/login/screens/error_screen_actor_delegate.h"
  14 #include "chrome/browser/chromeos/login/screens/wizard_screen.h"
  15 #include "chrome/browser/chromeos/login/ui/oobe_display.h"
  16 #include "chrome/browser/chromeos/settings/device_settings_service.h"
  17
  18 namespace chromeos {
  19
  20 class ScreenObserver;
  21
  22 // Controller for the error screen.
  23 class ErrorScreen : public WizardScreen,
  24                     public ErrorScreenActorDelegate,
  25                     public LoginPerformer::Delegate {
  26  public:
  27   enum UIState {
  28     UI_STATE_UNKNOWN = 0,
  29     UI_STATE_UPDATE,
  30     UI_STATE_SIGNIN,
  31     UI_STATE_SUPERVISED,
  32     UI_STATE_KIOSK_MODE,
  33     UI_STATE_LOCAL_STATE_ERROR,
  34     UI_STATE_AUTO_ENROLLMENT_ERROR,
  35     UI_STATE_ROLLBACK_ERROR,
  36   };
  37
  38   enum ErrorState {
  39     ERROR_STATE_UNKNOWN = 0,
  40     ERROR_STATE_PORTAL,
  41     ERROR_STATE_OFFLINE,
  42     ERROR_STATE_PROXY,
  43     ERROR_STATE_AUTH_EXT_TIMEOUT,
  44     ERROR_STATE_KIOSK_ONLINE
  45   };
  46
  47   ErrorScreen(ScreenObserver* screen_observer, ErrorScreenActor* actor);
  48   virtual ~ErrorScreen();
  49
  50   // WizardScreen implementation.
  51   virtual void PrepareToShow() OVERRIDE;
  52   virtual void Show() OVERRIDE;
  53   virtual void Hide() OVERRIDE;
  54   virtual std::string GetName() const OVERRIDE;
  55
  56   // ErrorScreenActorDelegate implementation:
  57   virtual void OnErrorShow() OVERRIDE;
  58   virtual void OnErrorHide() OVERRIDE;
  59   virtual void OnLaunchOobeGuestSession() OVERRIDE;
  60
  61   // LoginPerformer::Delegate implementation:
  62   virtual void OnAuthFailure(const AuthFailure& error) OVERRIDE;
  63   virtual void OnAuthSuccess(const UserContext& user_context) OVERRIDE;
  64   virtual void OnOffTheRecordAuthSuccess() OVERRIDE;
  65   virtual void OnPasswordChangeDetected() OVERRIDE;
  66   virtual void WhiteListCheckFailed(const std::string& email) OVERRIDE;
  67   virtual void PolicyLoadFailed() OVERRIDE;
  68   virtual void OnOnlineChecked(const std::string& username,
  69                                bool success) OVERRIDE;
  70
  71   // Initializes captive portal dialog and shows that if needed.
  72   void FixCaptivePortal();
  73
  74   // Shows captive portal dialog.
  75   void ShowCaptivePortal();
  76
  77   // Hides captive portal dialog.
  78   void HideCaptivePortal();
  79
  80   // Sets current UI state.
  81   void SetUIState(UIState ui_state);
  82
  83   UIState GetUIState() const;
  84
  85   // Sets current error screen content according to current UI state,
  86   // |error_state|, and |network|.
  87   void SetErrorState(ErrorState error_state, const std::string& network);
  88
  89   // Toggles the guest sign-in prompt.
  90   void AllowGuestSignin(bool allow);
  91
  92   // Toggles the connection pending indicator.
  93   void ShowConnectingIndicator(bool show);
  94
  95   void set_parent_screen(OobeDisplay::Screen parent_screen) {
  96     parent_screen_ = parent_screen;
  97   }
  98   OobeDisplay::Screen parent_screen() const { return parent_screen_; }
  99
 100  private:
 101   // Handles the response of an ownership check and starts the guest session if
 102   // applicable.
 103   void StartGuestSessionAfterOwnershipCheck(
 104       DeviceSettingsService::OwnershipStatus ownership_status);
 105
 106   void* volatile canary_1_;  // For debugging of https://crbug.com/396557.
 107   ErrorScreenActor* actor_;
 108   void* volatile canary_2_;
 109
 110   OobeDisplay::Screen parent_screen_;
 111
 112   scoped_ptr<LoginPerformer> guest_login_performer_;
 113
 114   base::WeakPtrFactory<ErrorScreen> weak_factory_;
 115
 116   DISALLOW_COPY_AND_ASSIGN(ErrorScreen);
 117 };
 118
 119 }  // namespace chromeos
 120
 121 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_H_