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/glue/chrome_report_unrecoverable_error.h"
  11 #include "chrome/browser/sync/profile_sync_service.h"
  12 #include "content/public/browser/browser_thread.h"
  13 #include "sync/api/syncable_service.h"
  14
  15 using content::BrowserThread;
  16
  17 namespace browser_sync {
  18
  19 SearchEngineDataTypeController::SearchEngineDataTypeController(
  20     SyncApiComponentFactory* sync_factory,
  21     Profile* profile,
  22     const DisableTypeCallback& disable_callback)
  23     : UIDataTypeController(
  24           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI),
  25           base::Bind(&ChromeReportUnrecoverableError),
  26           disable_callback,
  27           syncer::SEARCH_ENGINES,
  28           sync_factory),
  29       profile_(profile) {
  30 }
  31
  32 TemplateURLService::Subscription*
  33 SearchEngineDataTypeController::GetSubscriptionForTesting() {
  34   return template_url_subscription_.get();
  35 }
  36
  37 SearchEngineDataTypeController::~SearchEngineDataTypeController() {}
  38
  39 // We want to start the TemplateURLService before we begin associating.
  40 bool SearchEngineDataTypeController::StartModels() {
  41   // If the TemplateURLService is loaded, continue with association. We force
  42   // a load here to prevent the rest of Sync from waiting on
  43   // TemplateURLService's lazy load.
  44   TemplateURLService* turl_service =
  45       TemplateURLServiceFactory::GetForProfile(profile_);
  46   DCHECK(turl_service);
  47   turl_service->Load();
  48   if (turl_service->loaded()) {
  49     return true;  // Continue to Associate().
  50   }
  51
  52   // Register a callback and continue when the TemplateURLService is loaded.
  53   template_url_subscription_ = turl_service->RegisterOnLoadedCallback(
  54       base::Bind(&SearchEngineDataTypeController::OnTemplateURLServiceLoaded,
  55                  this));
  56
  57   return false;  // Don't continue Start.
  58 }
  59
  60 void SearchEngineDataTypeController::StopModels() {
  61   template_url_subscription_.reset();
  62 }
  63
  64 void SearchEngineDataTypeController::OnTemplateURLServiceLoaded() {
  65   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  66   DCHECK_EQ(state_, MODEL_STARTING);
  67   template_url_subscription_.reset();
  68   OnModelLoaded();
  69 }
  70
  71 }  // namespace browser_sync