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

   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/base/locale_util.h"
  13 #include "chrome/browser/chromeos/login/screens/terms_of_service_screen_actor.h"
  14 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
  15
  16 namespace chromeos {
  17
  18 class CoreOobeActor;
  19
  20 // The sole implementation of the TermsOfServiceScreenActor, using WebUI.
  21 class TermsOfServiceScreenHandler : public BaseScreenHandler,
  22                                     public TermsOfServiceScreenActor {
  23  public:
  24   explicit TermsOfServiceScreenHandler(CoreOobeActor* core_oobe_actor);
  25   ~TermsOfServiceScreenHandler() override;
  26
  27   // content::WebUIMessageHandler:
  28   void RegisterMessages() override;
  29
  30   // BaseScreenHandler:
  31   void DeclareLocalizedValues(
  32       ::login::LocalizedValuesBuilder* builder) override;
  33
  34   // TermsOfServiceScreenActor:
  35   void SetDelegate(Delegate* screen) override;
  36   void Show() override;
  37   void Hide() override;
  38   void SetDomain(const std::string& domain) override;
  39   void OnLoadError() override;
  40   void OnLoadSuccess(const std::string& terms_of_service) override;
  41
  42  private:
  43   // BaseScreenHandler:
  44   void Initialize() override;
  45
  46   // Callback invoked after the UI locale has been changed.
  47   void OnLanguageChangedCallback(
  48       const locale_util::LanguageSwitchResult& result);
  49
  50   // Switch to the user's preferred input method and show the screen. This
  51   // method is called after it has been ensured that the current UI locale
  52   // matches the UI locale chosen by the user.
  53   void DoShow();
  54
  55   // Update the domain name shown in the UI.
  56   void UpdateDomainInUI();
  57
  58   // Update the UI to show an error message or the Terms of Service, depending
  59   // on whether the download of the Terms of Service was successful. Does
  60   // nothing if the download is still in progress.
  61   void UpdateTermsOfServiceInUI();
  62
  63   // Called when the user declines the Terms of Service by clicking the "back"
  64   // button.
  65   void HandleBack();
  66
  67   // Called when the user accepts the Terms of Service by clicking the "accept
  68   // and continue" button.
  69   void HandleAccept();
  70
  71   TermsOfServiceScreenHandler::Delegate* screen_;
  72
  73   CoreOobeActor* core_oobe_actor_;
  74
  75   // Whether the screen should be shown right after initialization.
  76   bool show_on_init_;
  77
  78   // The domain name whose Terms of Service are being shown.
  79   std::string domain_;
  80
  81   // Set to |true| when the download of the Terms of Service fails.
  82   bool load_error_;
  83
  84   // Set to the Terms of Service when the download is successful.
  85   std::string terms_of_service_;
  86
  87   DISALLOW_COPY_AND_ASSIGN(TermsOfServiceScreenHandler);
  88 };
  89
  90 }  // namespace chromeos
  91
  92 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_TERMS_OF_SERVICE_SCREEN_HANDLER_H_