Draft: InvalidationService

chrome/browser/android_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_ANDROID_INVALIDATION_SERVICE_H_

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

Just a heads up, we should put chrome-focused invalidations files in a
subdirectory of browser/, like sync/.

[tim (not reviewing), 2013/04/15 16:49:45]

Er, to clarify, I didn't mean put it in sync/ I meant create a folder "like the
sync folder", perhaps called chrome/browser/invalidations.  There is currently a
chrome/browser/sync/invalidations, which I put there as a temporary home for
some files, but the idea was that the two dirs would be peers.

[rlarocque, 2013/04/17 01:02:32]

SGTM.  I wanted to avoid moving files around in this version of the patch to
make it easier to see the diffs for existing files, but I'm in favour of adding
a chrome/browser/invalidations directory.

+#define CHROME_BROWSER_ANDROID_INVALIDATION_SERVICE_H_
+
+#include "base/threading/non_thread_safe.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+#include "chrome/browser/sync/invalidation_frontend.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "sync/notifier/invalidator_registrar.h"
+
+class Profile;
+
+class AndroidInvalidationService
+    : public base::NonThreadSafe,
+      public ProfileKeyedService,
+      public InvalidationFrontend,
+      public content::NotificationObserver{
+ public:
+  AndroidInvalidationService();
+  virtual ~AndroidInvalidationService();
+
+  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;
+
+ private:
+  syncer::InvalidatorRegistrar invalidator_registrar_;
+  content::NotificationRegistrar registrar_;
+};
+
+#endif  // CHROME_BROWSER_ANDROID_INVALIDATION_SERVICE_H_