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      1 // Copyright (c) 2013 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_TERMS_OF_SERVICE_SCREEN_HANDLER_H_
      6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_TERMS_OF_SERVICE_SCREEN_HANDLER_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/compiler_specific.h"
     12 #include "chrome/browser/chromeos/login/screens/terms_of_service_screen_actor.h"
     13 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
     14 
     15 namespace chromeos {
     16 
     17 // The sole implementation of the TermsOfServiceScreenActor, using WebUI.
     18 class TermsOfServiceScreenHandler : public BaseScreenHandler,
     19                                     public TermsOfServiceScreenActor {
     20  public:
     21   TermsOfServiceScreenHandler();
     22   virtual ~TermsOfServiceScreenHandler();
     23 
     24   // content::WebUIMessageHandler:
     25   virtual void RegisterMessages() OVERRIDE;
     26 
     27   // BaseScreenHandler:
     28   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
     29 
     30   // TermsOfServiceScreenActor:
     31   virtual void SetDelegate(Delegate* screen) OVERRIDE;
     32   virtual void Show() OVERRIDE;
     33   virtual void Hide() OVERRIDE;
     34   virtual void SetDomain(const std::string& domain) OVERRIDE;
     35   virtual void OnLoadError() OVERRIDE;
     36   virtual void OnLoadSuccess(const std::string& terms_of_service) OVERRIDE;
     37 
     38  private:
     39   // BaseScreenHandler:
     40   virtual void Initialize() OVERRIDE;
     41 
     42   // Update the domain name shown in the UI.
     43   void UpdateDomainInUI();
     44 
     45   // Update the UI to show an error message or the Terms of Service, depending
     46   // on whether the download of the Terms of Service was successful. Does
     47   // nothing if the download is still in progress.
     48   void UpdateTermsOfServiceInUI();
     49 
     50   // Called when the user declines the Terms of Service by clicking the "back"
     51   // button.
     52   void HandleBack();
     53 
     54   // Called when the user accepts the Terms of Service by clicking the "accept
     55   // and continue" button.
     56   void HandleAccept();
     57 
     58   TermsOfServiceScreenHandler::Delegate* screen_;
     59 
     60   // Whether the screen should be shown right after initialization.
     61   bool show_on_init_;
     62 
     63   // The domain name whose Terms of Service are being shown.
     64   std::string domain_;
     65 
     66   // Set to |true| when the download of the Terms of Service fails.
     67   bool load_error_;
     68 
     69   // Set to the Terms of Service when the download is successful.
     70   std::string terms_of_service_;
     71 
     72   DISALLOW_COPY_AND_ASSIGN(TermsOfServiceScreenHandler);
     73 };
     74 
     75 }  // namespace chromeos
     76 
     77 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_TERMS_OF_SERVICE_SCREEN_HANDLER_H_
     78