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_WELCOME_HANDLER_ANDROID_H_ 6 #define CHROME_BROWSER_UI_WEBUI_WELCOME_HANDLER_ANDROID_H_ 7 8 #include "base/scoped_observer.h" 9 #include "chrome/browser/sync/profile_sync_service.h" 10 #include "chrome/browser/sync/profile_sync_service_observer.h" 11 #include "content/public/browser/web_ui_message_handler.h" 12 13 namespace base { 14 class ListValue; 15 } 16 17 // Handler class for chrome://welcome page. 18 class WelcomeHandler : public content::WebUIMessageHandler, 19 public ProfileSyncServiceObserver { 20 public: 21 WelcomeHandler(); 22 virtual ~WelcomeHandler(); 23 24 // content::WebUIMessageHandler implementation. 25 virtual void RegisterMessages() OVERRIDE; 26 27 // Callback for the "updateSyncFooterVisibility" message. This makes the sync 28 // footer in the page visible if sync is enabled. 29 void HandleUpdateSyncFooterVisibility(const base::ListValue* args); 30 31 // Callback for the "showSyncSettings" message. This opens the sync settings 32 // menu fragment. 33 void HandleShowSyncSettings(const base::ListValue* args); 34 35 // Callback for the "showTermsOfService" message. This opens the terms of 36 // service popup. 37 void HandleShowTermsOfService(const base::ListValue* args); 38 39 // ProfileSyncServiceObserver implementation 40 virtual void OnStateChanged() OVERRIDE; 41 42 private: 43 // Update the sync footer visibility. Set |forced| if you want to force to 44 // send an update to the renderer regardless of whether we assume the state 45 // is up to date or not. 46 void UpdateSyncFooterVisibility(bool forced); 47 48 // Cached pointer to the sync service for this profile. 49 ProfileSyncService* sync_service_; 50 51 ScopedObserver<ProfileSyncService, WelcomeHandler> observer_manager_; 52 53 // Whether the sync footer is visible on the page. 54 bool is_sync_footer_visible_; 55 56 DISALLOW_COPY_AND_ASSIGN(WelcomeHandler); 57 }; 58 59 #endif // CHROME_BROWSER_UI_WEBUI_WELCOME_HANDLER_ANDROID_H_ 60