src/chrome/browser/sync/glue/search_engine_data_type_controller.cc

   1 // Copyright (c) 2012 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/sync/glue/search_engine_data_type_controller.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/search_engines/template_url_service_factory.h"
  10 #include "chrome/browser/sync/profile_sync_components_factory.h"
  11 #include "chrome/browser/sync/profile_sync_service.h"
  12 #include "sync/api/syncable_service.h"
  13
  14 using content::BrowserThread;
  15
  16 namespace browser_sync {
  17
  18 SearchEngineDataTypeController::SearchEngineDataTypeController(
  19     ProfileSyncComponentsFactory* profile_sync_factory,
  20     Profile* profile,
  21     ProfileSyncService* sync_service)
  22     : UIDataTypeController(syncer::SEARCH_ENGINES,
  23                            profile_sync_factory,
  24                            profile,
  25                            sync_service) {
  26 }
  27
  28 SearchEngineDataTypeController::~SearchEngineDataTypeController() {}
  29
  30 // We want to start the TemplateURLService before we begin associating.
  31 bool SearchEngineDataTypeController::StartModels() {
  32   // If the TemplateURLService is loaded, continue with association. We force
  33   // a load here to prevent the rest of Sync from waiting on
  34   // TemplateURLService's lazy load.
  35   TemplateURLService* turl_service =
  36       TemplateURLServiceFactory::GetForProfile(profile_);
  37   DCHECK(turl_service);
  38   turl_service->Load();
  39   if (turl_service->loaded()) {
  40     return true;  // Continue to Associate().
  41   }
  42
  43   // Register a callback and continue when the TemplateURLService is loaded.
  44   template_url_subscription_ = turl_service->RegisterOnLoadedCallback(
  45       base::Bind(&SearchEngineDataTypeController::OnTemplateURLServiceLoaded,
  46                  this));
  47
  48   return false;  // Don't continue Start.
  49 }
  50
  51 void SearchEngineDataTypeController::OnTemplateURLServiceLoaded() {
  52   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  53   DCHECK_EQ(state_, MODEL_STARTING);
  54   template_url_subscription_.reset();
  55   OnModelLoaded();
  56 }
  57
  58 }  // namespace browser_sync