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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_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_
      6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_
      7 
      8 #include "base/cancelable_callback.h"
      9 #include "base/compiler_specific.h"
     10 #include "base/memory/ref_counted.h"
     11 #include "chrome/browser/chromeos/login/screens/error_screen_actor.h"
     12 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
     13 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
     14 
     15 namespace base {
     16 class DictionaryValue;
     17 }
     18 
     19 namespace chromeos {
     20 
     21 class CaptivePortalWindowProxy;
     22 class NativeWindowDelegate;
     23 class NetworkStateInformer;
     24 
     25 // A class that handles the WebUI hooks in error screen.
     26 class ErrorScreenHandler : public BaseScreenHandler,
     27                            public ErrorScreenActor {
     28  public:
     29   ErrorScreenHandler(
     30       const scoped_refptr<NetworkStateInformer>& network_state_informer);
     31   virtual ~ErrorScreenHandler();
     32 
     33   // ErrorScreenActor implementation:
     34   virtual void SetDelegate(ErrorScreenActorDelegate* delegate) OVERRIDE;
     35   virtual void Show(OobeDisplay::Screen parent_screen,
     36                     base::DictionaryValue* params) OVERRIDE;
     37   virtual void Show(OobeDisplay::Screen parent_screen,
     38                     base::DictionaryValue* params,
     39                     const base::Closure& on_hide) OVERRIDE;
     40   virtual void Hide() OVERRIDE;
     41   virtual void FixCaptivePortal() OVERRIDE;
     42   virtual void ShowCaptivePortal() OVERRIDE;
     43   virtual void HideCaptivePortal() OVERRIDE;
     44   virtual void SetUIState(ErrorScreen::UIState ui_state) OVERRIDE;
     45   virtual void SetErrorState(ErrorScreen::ErrorState error_state,
     46                              const std::string& network) OVERRIDE;
     47   virtual void AllowGuestSignin(bool allowed) OVERRIDE;
     48   virtual void AllowOfflineLogin(bool allowed) OVERRIDE;
     49   virtual void ShowConnectingIndicator(bool show) OVERRIDE;
     50 
     51  private:
     52   // Sends notification that error message is shown.
     53   void NetworkErrorShown();
     54 
     55   bool GetScreenName(OobeUI::Screen screen, std::string* name) const;
     56 
     57   // Default hide_closure for Show/Hide.
     58   void CheckAndShowScreen();
     59 
     60   // WebUI message handlers.
     61   void HandleShowCaptivePortal();
     62   void HandleHideCaptivePortal();
     63   void HandleLocalStateErrorPowerwashButtonClicked();
     64   void HandleRebootButtonClicked();
     65   void HandleDiagnoseButtonClicked();
     66   void HandleConfigureCerts();
     67   void HandleLaunchOobeGuestSession();
     68 
     69   // WebUIMessageHandler implementation:
     70   virtual void RegisterMessages() OVERRIDE;
     71 
     72   // BaseScreenHandler implementation:
     73   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
     74   virtual void Initialize() OVERRIDE;
     75 
     76   // Non-owning ptr.
     77   ErrorScreenActorDelegate* delegate_;
     78 
     79   // Proxy which manages showing of the window for captive portal entering.
     80   scoped_ptr<CaptivePortalWindowProxy> captive_portal_window_proxy_;
     81 
     82   // Network state informer used to keep error screen up.
     83   scoped_refptr<NetworkStateInformer> network_state_informer_;
     84 
     85   // NativeWindowDelegate used to get reference to NativeWindow.
     86   NativeWindowDelegate* native_window_delegate_;
     87 
     88   // Keeps whether screen should be shown right after initialization.
     89   bool show_on_init_;
     90 
     91   scoped_ptr<base::Closure> on_hide_;
     92 
     93   base::WeakPtrFactory<ErrorScreenHandler> weak_ptr_factory_;
     94 
     95   DISALLOW_COPY_AND_ASSIGN(ErrorScreenHandler);
     96 };
     97 
     98 }  // namespace chromeos
     99 
    100 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_
    101