Combine all suggestions factories into ContentSuggestionsServiceFactory

chrome/browser/ntp_snippets/content_suggestions_service_factory.cc

 // Copyright 2016 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 "chrome/browser/ntp_snippets/content_suggestions_service_factory.h"
 
 #include "base/feature_list.h"
+#include "base/files/file_path.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/search/suggestions/image_decoder_impl.h"
+#include "chrome/browser/search/suggestions/suggestions_service_factory.h"
+#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
+#include "chrome/common/channel_info.h"
 #include "chrome/common/pref_names.h"
+#include "components/image_fetcher/image_decoder.h"
+#include "components/image_fetcher/image_fetcher.h"
+#include "components/image_fetcher/image_fetcher_impl.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/ntp_snippets/content_suggestions_service.h"
+#include "components/ntp_snippets/ntp_snippets_constants.h"
+#include "components/ntp_snippets/ntp_snippets_database.h"
+#include "components/ntp_snippets/ntp_snippets_fetcher.h"
+#include "components/ntp_snippets/ntp_snippets_scheduler.h"
+#include "components/ntp_snippets/ntp_snippets_service.h"
+#include "components/ntp_snippets/ntp_snippets_status_service.h"
 #include "components/prefs/pref_service.h"
+#include "components/safe_json/safe_json_parser.h"
+#include "components/signin/core/browser/profile_oauth2_token_service.h"
+#include "components/signin/core/browser/signin_manager.h"
+#include "components/version_info/version_info.h"
 #include "content/public/browser/browser_context.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/storage_partition.h"
+#include "net/url_request/url_request_context_getter.h"
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/android/chrome_feature_list.h"
+#include "chrome/browser/android/ntp/ntp_snippets_launcher.h"
+#include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
+#include "components/ntp_snippets/offline_pages/offline_page_suggestions_provider.h"
+#include "components/offline_pages/offline_page_model.h"
 #endif  // OS_ANDROID
 
+using content::BrowserThread;
+using image_fetcher::ImageFetcherImpl;
+using suggestions::ImageDecoderImpl;

[Marc Treib, 2016/08/03 11:53:23]

nit: keep these alphabetical

[Philipp Keck, 2016/08/03 12:28:24]

Done.

+using suggestions::SuggestionsService;
+using suggestions::SuggestionsServiceFactory;
+using ntp_snippets::ContentSuggestionsService;
+using ntp_snippets::NTPSnippetsService;
+using ntp_snippets::OfflinePageSuggestionsProvider;
+using offline_pages::OfflinePageModel;
+using offline_pages::OfflinePageModelFactory;
+
 // static
 ContentSuggestionsServiceFactory*
 ContentSuggestionsServiceFactory::GetInstance() {
   return base::Singleton<ContentSuggestionsServiceFactory>::get();
 }
 
 // static
-ntp_snippets::ContentSuggestionsService*
-ContentSuggestionsServiceFactory::GetForProfile(Profile* profile) {
+ContentSuggestionsService* ContentSuggestionsServiceFactory::GetForProfile(
+    Profile* profile) {
   DCHECK(!profile->IsOffTheRecord());
-  return static_cast<ntp_snippets::ContentSuggestionsService*>(
+  return static_cast<ContentSuggestionsService*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 ContentSuggestionsServiceFactory::ContentSuggestionsServiceFactory()
     : BrowserContextKeyedServiceFactory(
           "ContentSuggestionsService",
           BrowserContextDependencyManager::GetInstance()) {}
 
 ContentSuggestionsServiceFactory::~ContentSuggestionsServiceFactory() {}
 
 KeyedService* ContentSuggestionsServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
-  using State = ntp_snippets::ContentSuggestionsService::State;
+  using State = ContentSuggestionsService::State;
+  Profile* profile = Profile::FromBrowserContext(context);
 
-  // TODO(mvanouwerkerk): Move the enable logic into the service once we start
-  // observing pref changes.
+  // Create the ContentSuggestionsService.
   State enabled = State::DISABLED;
 #if defined(OS_ANDROID)
-  // TODO(pke): Split that feature into suggestions overall and article
-  // suggestions in particular.
   if (base::FeatureList::IsEnabled(chrome::android::kNTPSnippetsFeature))
     enabled = State::ENABLED;
 #endif  // OS_ANDROID
+  ContentSuggestionsService* service = new ContentSuggestionsService(enabled);
+  if (enabled == State::DISABLED)
+    return service;
 
-  return new ntp_snippets::ContentSuggestionsService(enabled);
+// Create the OfflinePageSuggestionsProvider.
+#if defined(OS_ANDROID)
+  if (base::FeatureList::IsEnabled(
+          chrome::android::kNTPOfflinePageSuggestionsFeature)) {
+    OfflinePageModel* offline_page_model =
+        OfflinePageModelFactory::GetForBrowserContext(profile);
+
+    std::unique_ptr<OfflinePageSuggestionsProvider>
+        offline_page_suggestions_provider =
+            base::MakeUnique<OfflinePageSuggestionsProvider>(
+                service, service->category_factory(), offline_page_model);
+    service->RegisterProvider(std::move(offline_page_suggestions_provider));
+  }
+#endif  // OS_ANDROID
+
+  // Create the NTPSnippetsService (articles provider).
+  SigninManagerBase* signin_manager =
+      SigninManagerFactory::GetForProfile(profile);
+  OAuth2TokenService* token_service =
+      ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
+  scoped_refptr<net::URLRequestContextGetter> request_context =
+      content::BrowserContext::GetDefaultStoragePartition(context)
+          ->GetURLRequestContext();
+  SuggestionsService* suggestions_service =
+      SuggestionsServiceFactory::GetForProfile(profile);
+  ntp_snippets::NTPSnippetsScheduler* scheduler = nullptr;
+#if defined(OS_ANDROID)
+  scheduler = NTPSnippetsLauncher::Get();
+#endif  // OS_ANDROID
+  base::FilePath database_dir(
+      profile->GetPath().Append(ntp_snippets::kDatabaseFolder));
+  scoped_refptr<base::SequencedTaskRunner> task_runner =
+      BrowserThread::GetBlockingPool()
+          ->GetSequencedTaskRunnerWithShutdownBehavior(
+              base::SequencedWorkerPool::GetSequenceToken(),
+              base::SequencedWorkerPool::CONTINUE_ON_SHUTDOWN);
+  std::unique_ptr<NTPSnippetsService> ntp_snippets_service =
+      base::MakeUnique<NTPSnippetsService>(
+          service, service->category_factory(), profile->GetPrefs(),
+          suggestions_service, g_browser_process->GetApplicationLocale(),
+          scheduler, base::MakeUnique<ntp_snippets::NTPSnippetsFetcher>(
+                         signin_manager, token_service, request_context,
+                         profile->GetPrefs(),
+                         base::Bind(&safe_json::SafeJsonParser::Parse),
+                         chrome::GetChannel() == version_info::Channel::STABLE),
+          base::MakeUnique<ImageFetcherImpl>(
+              base::MakeUnique<ImageDecoderImpl>(), request_context.get()),
+          base::MakeUnique<ImageDecoderImpl>(),
+          base::MakeUnique<ntp_snippets::NTPSnippetsDatabase>(database_dir,
+                                                              task_runner),
+          base::MakeUnique<ntp_snippets::NTPSnippetsStatusService>(

[Marc Treib, 2016/08/03 11:53:23]

nit: You already have a bunch of using declarations above, might as well add
these two.

[Philipp Keck, 2016/08/03 12:28:24]

Done, and a couple more from ntp_snippets.

+              signin_manager, profile->GetPrefs()));
+  service->set_ntp_snippets_service(ntp_snippets_service.get());
+  service->RegisterProvider(std::move(ntp_snippets_service));
+
+  return service;
 }