Network connectivity errors handling (incl. CP) for enrollment flow

chrome/browser/ui/webui/chromeos/login/error_screen_handler.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_
 
 #include "base/cancelable_callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 16 matching lines @@
                            public ErrorScreenActor {
  public:
   ErrorScreenHandler(
       const scoped_refptr<NetworkStateInformer>& network_state_informer);
   virtual ~ErrorScreenHandler();
 
   // ErrorScreenActor implementation:
   virtual void SetDelegate(ErrorScreenActorDelegate* delegate) OVERRIDE;
   virtual void Show(OobeDisplay::Screen parent_screen,
                     base::DictionaryValue* params) OVERRIDE;
+  virtual void Show(OobeDisplay::Screen parent_screen,
+                    base::DictionaryValue* params,
+                    const base::Closure& on_hide) OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual void FixCaptivePortal() OVERRIDE;
   virtual void ShowCaptivePortal() OVERRIDE;
   virtual void HideCaptivePortal() OVERRIDE;
   virtual void SetUIState(ErrorScreen::UIState ui_state) OVERRIDE;
   virtual void SetErrorState(ErrorScreen::ErrorState error_state,
                              const std::string& network) OVERRIDE;
   virtual void AllowGuestSignin(bool allowed) OVERRIDE;
   virtual void AllowOfflineLogin(bool allowed) OVERRIDE;
   virtual void ShowConnectingIndicator(bool show) OVERRIDE;
 
  private:
   // Sends notification that error message is shown.
   void NetworkErrorShown();
 
   bool GetScreenName(OobeUI::Screen screen, std::string* name) const;
 
+  // Default hide_closure for Show/Hide.
+  void CheckAndShowScreen();
+
   // WebUI message handlers.
   void HandleShowCaptivePortal();
   void HandleHideCaptivePortal();
   void HandleLocalStateErrorPowerwashButtonClicked();
   void HandleRebootButtonClicked();
   void HandleDiagnoseButtonClicked();
   void HandleConfigureCerts();
   void HandleLaunchOobeGuestSession();
 
   // WebUIMessageHandler implementation:
@@ skipping 11 matching lines @@
 
   // Network state informer used to keep error screen up.
   scoped_refptr<NetworkStateInformer> network_state_informer_;
 
   // NativeWindowDelegate used to get reference to NativeWindow.
   NativeWindowDelegate* native_window_delegate_;
 
   // Keeps whether screen should be shown right after initialization.
   bool show_on_init_;
 
+  scoped_ptr<base::Closure> on_hide_;
+
+  base::WeakPtrFactory<ErrorScreenHandler> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ErrorScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_