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      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_ACTOR_H_
      6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_ACTOR_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "chrome/browser/chromeos/login/screens/error_screen.h"
     12 #include "chrome/browser/chromeos/login/screens/error_screen_actor_delegate.h"
     13 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
     14 
     15 namespace base {
     16 class DictionaryValue;
     17 }
     18 
     19 namespace chromeos {
     20 
     21 class ErrorScreenActor {
     22  public:
     23   // Possible network error reasons.
     24   enum ErrorReason {
     25     ERROR_REASON_PROXY_AUTH_CANCELLED = 0,
     26     ERROR_REASON_PROXY_AUTH_SUPPLIED,
     27     ERROR_REASON_PROXY_CONNECTION_FAILED,
     28     ERROR_REASON_PROXY_CONFIG_CHANGED,
     29     ERROR_REASON_LOADING_TIMEOUT,
     30     ERROR_REASON_PORTAL_DETECTED,
     31     // Reason for a case when default network has changed.
     32     ERROR_REASON_NETWORK_STATE_CHANGED,
     33     // Reason for a case when JS side requires error screen update.
     34     ERROR_REASON_UPDATE,
     35     ERROR_REASON_FRAME_ERROR
     36   };
     37 
     38   ErrorScreenActor();
     39   virtual ~ErrorScreenActor();
     40 
     41   ErrorScreen::UIState ui_state() const { return ui_state_; }
     42   ErrorScreen::ErrorState error_state() const { return error_state_; }
     43 
     44   // Returns id of the screen behind error screen ("caller" screen).
     45   // Returns OobeUI::SCREEN_UNKNOWN if error screen isn't the current
     46   // screen.
     47   OobeUI::Screen parent_screen() const { return parent_screen_; }
     48 
     49   // Sets screen this actor belongs to.
     50   virtual void SetDelegate(ErrorScreenActorDelegate* delegate) = 0;
     51 
     52   // Shows the screen.
     53   virtual void Show(OobeDisplay::Screen parent_screen,
     54                     base::DictionaryValue* params) = 0;
     55 
     56   // Hides the screen.
     57   virtual void Hide() = 0;
     58 
     59   // Initializes captive portal dialog and shows that if needed.
     60   virtual void FixCaptivePortal() = 0;
     61 
     62   // Shows captive portal dialog.
     63   virtual void ShowCaptivePortal() = 0;
     64 
     65   // Hides captive portal dialog.
     66   virtual void HideCaptivePortal() = 0;
     67 
     68   virtual void SetUIState(ErrorScreen::UIState ui_state) = 0;
     69   virtual void SetErrorState(ErrorScreen::ErrorState error_state,
     70                              const std::string& network) = 0;
     71 
     72   virtual void AllowGuestSignin(bool allowed) = 0;
     73   virtual void AllowOfflineLogin(bool allowed) = 0;
     74 
     75   virtual void ShowConnectingIndicator(bool show) = 0;
     76 
     77   static const char* ErrorReasonString(ErrorReason reason);
     78 
     79  protected:
     80   ErrorScreen::UIState ui_state_;
     81   ErrorScreen::ErrorState error_state_;
     82   std::string network_;
     83   bool guest_signin_allowed_;
     84   bool offline_login_allowed_;
     85   bool show_connecting_indicator_;
     86 
     87   OobeUI::Screen parent_screen_;
     88 
     89   DISALLOW_COPY_AND_ASSIGN(ErrorScreenActor);
     90 };
     91 
     92 }  // namespace chromeos
     93 
     94 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_ACTOR_H_
     95