Draft: InvalidationService

chrome/browser/invalidation_service.h

+// Copyright (c) 2013 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.
+
+#ifndef CHROME_BROWSER_INVALIDATION_SERVICE_H_

[tim (not reviewing), 2013/04/15 16:48:24]

This may have been your plan given the 'Draft' title on the patch, but the new
InvalidationService[Factory, Tests] would be better reviewed as their own small
CL.

+#define CHROME_BROWSER_INVALIDATION_SERVICE_H_
+
+#include "base/threading/non_thread_safe.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+#include "chrome/browser/signin/signin_global_error.h"
+#include "chrome/browser/sync/invalidation_frontend.h"
+#include "chrome/browser/sync/invalidations/invalidator_storage.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "sync/notifier/invalidation_handler.h"
+#include "sync/notifier/invalidator_registrar.h"
+
+class Profile;
+class SigninManager;
+class TokenService;
+
+namespace syncer {
+class Invalidator;
+}
+
+class InvalidationService
+    : public base::NonThreadSafe,
+      public ProfileKeyedService,
+      public InvalidationFrontend,
+      public content::NotificationObserver,
+      public syncer::InvalidationHandler {
+ public:
+  InvalidationService(SigninManager* signin,
+                      TokenService* token_service);
+  virtual ~InvalidationService();
+
+  void Init(Profile* profile);
+
+  // InvalidationFrontend implementation.
+  // It is an error to have registered handlers when Shutdown() is called.
+  virtual void RegisterInvalidationHandler(
+      syncer::InvalidationHandler* handler) OVERRIDE;
+  virtual void UpdateRegisteredInvalidationIds(
+      syncer::InvalidationHandler* handler,
+      const syncer::ObjectIdSet& ids) OVERRIDE;
+  virtual void UnregisterInvalidationHandler(
+      syncer::InvalidationHandler* handler) OVERRIDE;
+  virtual void AcknowledgeInvalidation(
+      const invalidation::ObjectId& id,
+      const syncer::AckHandle& ack_handle) OVERRIDE;
+  virtual syncer::InvalidatorState GetInvalidatorState() const OVERRIDE;
+  virtual std::string GetInvalidatorClientId() const OVERRIDE;
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // syncer::InvalidationHandler implementation.
+  virtual void OnInvalidatorStateChange(
+      syncer::InvalidatorState state) OVERRIDE;
+  virtual void OnIncomingInvalidation(
+      const syncer::ObjectIdInvalidationMap& invalidation_map) OVERRIDE;
+
+  // Override of ProfileKeyedService method.
+  virtual void Shutdown() OVERRIDE;
+
+ private:
+  bool IsReadyToStart();
+  bool IsStarted();
+
+  void Start();
+  void UpdateToken();
+  void Stop();
+
+  Profile* profile_;
+  SigninManager* signin_manager_;
+  TokenService* token_service_;
+
+  scoped_ptr<syncer::InvalidatorRegistrar> invalidator_registrar_;
+  scoped_ptr<browser_sync::InvalidatorStorage> invalidator_storage_;
+  scoped_ptr<syncer::Invalidator> invalidator_;
+
+  content::NotificationRegistrar notification_registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(InvalidationService);
+};
+
+#endif  // CHROME_BROWSER_INVALIDATION_SERVICE_H_