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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 #include "chrome/browser/ui/webui/welcome_handler_android.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/values.h"
      9 #include "chrome/browser/android/chromium_application.h"
     10 #include "chrome/browser/profiles/profile.h"
     11 #include "chrome/browser/sync/profile_sync_service_factory.h"
     12 #include "content/public/browser/web_ui.h"
     13 
     14 WelcomeHandler::WelcomeHandler()
     15     : sync_service_(NULL),
     16       observer_manager_(this),
     17       is_sync_footer_visible_(false) {}
     18 
     19 WelcomeHandler::~WelcomeHandler() {}
     20 
     21 void WelcomeHandler::RegisterMessages() {
     22   web_ui()->RegisterMessageCallback(
     23       "updateSyncFooterVisibility",
     24       base::Bind(&WelcomeHandler::HandleUpdateSyncFooterVisibility,
     25       base::Unretained(this)));
     26 
     27   web_ui()->RegisterMessageCallback(
     28       "showSyncSettings",
     29       base::Bind(&WelcomeHandler::HandleShowSyncSettings,
     30       base::Unretained(this)));
     31 
     32   web_ui()->RegisterMessageCallback(
     33       "showTermsOfService",
     34       base::Bind(&WelcomeHandler::HandleShowTermsOfService,
     35       base::Unretained(this)));
     36 
     37   // Register for callbacks
     38   sync_service_ = ProfileSyncServiceFactory::GetInstance()->GetForProfile(
     39       Profile::FromWebUI(web_ui()));
     40   if (sync_service_)
     41     observer_manager_.Add(sync_service_);
     42 }
     43 
     44 void WelcomeHandler::HandleUpdateSyncFooterVisibility(
     45     const base::ListValue* args) {
     46   UpdateSyncFooterVisibility(true);
     47 }
     48 
     49 void WelcomeHandler::HandleShowSyncSettings(const base::ListValue* args) {
     50   chrome::android::ChromiumApplication::ShowSyncSettings();
     51 }
     52 
     53 void WelcomeHandler::HandleShowTermsOfService(const base::ListValue* args) {
     54   chrome::android::ChromiumApplication::ShowTermsOfServiceDialog();
     55 }
     56 
     57 void WelcomeHandler::OnStateChanged() {
     58   UpdateSyncFooterVisibility(false);
     59 }
     60 
     61 void WelcomeHandler::UpdateSyncFooterVisibility(bool forced) {
     62   bool is_sync_enabled =
     63       sync_service_ && sync_service_->IsSyncEnabledAndLoggedIn();
     64 
     65   if (forced || is_sync_footer_visible_ != is_sync_enabled) {
     66     is_sync_footer_visible_ = is_sync_enabled;
     67     web_ui()->CallJavascriptFunction("welcome.setSyncFooterVisible",
     68                                      base::FundamentalValue(is_sync_enabled));
     69   }
     70 }
     71