Upstream iOS SuggestionsServiceFactory

ios/chrome/browser/suggestions/suggestions_service_factory.mm

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ios/chrome/browser/suggestions/suggestions_service_factory.h"
+
+#include "base/files/file_path.h"
+#include "base/memory/singleton.h"
+#include "base/sequenced_task_runner.h"
+#include "base/threading/sequenced_worker_pool.h"
+#include "components/keyed_service/ios/browser_state_dependency_manager.h"
+#include "components/leveldb_proto/proto_database_impl.h"
+#include "components/suggestions/blacklist_store.h"
+#include "components/suggestions/image_fetcher.h"
+#include "components/suggestions/image_manager.h"
+#include "components/suggestions/suggestions_service.h"
+#include "components/suggestions/suggestions_store.h"
+#include "ios/chrome/browser/suggestions/image_fetcher_impl.h"
+#include "ios/public/provider/chrome/browser/browser_state/chrome_browser_state.h"
+#include "ios/web/public/browser_state.h"
+#include "ios/web/public/web_thread.h"
+
+namespace suggestions {
+namespace {
+const base::FilePath::CharType kThumbnailDirectory[] =
+    FILE_PATH_LITERAL("Thumbnail");
+}
+
+// static
+SuggestionsServiceFactory* SuggestionsServiceFactory::GetInstance() {
+  return Singleton<SuggestionsServiceFactory>::get();
+}
+
+// static
+SuggestionsService* SuggestionsServiceFactory::GetForBrowserState(
+    web::BrowserState* browser_state) {
+  return static_cast<SuggestionsService*>(
+      GetInstance()->GetServiceForBrowserState(browser_state, true));
+}
+
+SuggestionsServiceFactory::SuggestionsServiceFactory()
+    : BrowserStateKeyedServiceFactory(
+          "SuggestionsService",
+          BrowserStateDependencyManager::GetInstance()) {
+  // No dependencies.
+}
+
+SuggestionsServiceFactory::~SuggestionsServiceFactory() {
+}
+
+KeyedService* SuggestionsServiceFactory::BuildServiceInstanceFor(
+    web::BrowserState* browser_state) const {
+  base::SequencedWorkerPool* sequenced_worker_pool =
+      web::WebThread::GetBlockingPool();
+  scoped_refptr<base::SequencedTaskRunner> background_task_runner =
+      sequenced_worker_pool->GetSequencedTaskRunner(
+          sequenced_worker_pool->GetSequenceToken());
+
+  ios::ChromeBrowserState* chrome_browser_state =
+      ios::ChromeBrowserState::FromBrowserState(browser_state);
+  base::FilePath database_dir(
+      chrome_browser_state->GetPath().Append(kThumbnailDirectory));
+  scoped_ptr<SuggestionsStore> suggestions_store(
+      new SuggestionsStore(chrome_browser_state->GetPrefs()));
+  scoped_ptr<BlacklistStore> blacklist_store(
+      new BlacklistStore(chrome_browser_state->GetPrefs()));
+  scoped_ptr<leveldb_proto::ProtoDatabaseImpl<ImageData>> db(
+      new leveldb_proto::ProtoDatabaseImpl<ImageData>(background_task_runner));
+  scoped_ptr<ImageFetcher> image_fetcher(new ImageFetcherImpl(
+      browser_state->GetRequestContext(), sequenced_worker_pool));
+  scoped_ptr<ImageManager> thumbnail_manager(
+      new ImageManager(image_fetcher.Pass(), db.Pass(), database_dir));
+  return new SuggestionsService(
+      browser_state->GetRequestContext(), suggestions_store.Pass(),
+      thumbnail_manager.Pass(), blacklist_store.Pass());
+}
+
+void SuggestionsServiceFactory::RegisterProfilePrefs(
+    user_prefs::PrefRegistrySyncable* registry) {
+  SuggestionsService::RegisterProfilePrefs(registry);
+}
+
+}  // namespace suggestions