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// Copyright (c) 2012 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_SYNC_GLUE_CHROME_SYNC_NOTIFICATION_BRIDGE_H_
#define CHROME_BROWSER_SYNC_GLUE_CHROME_SYNC_NOTIFICATION_BRIDGE_H_
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/observer_list_threadsafe.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
class Profile;
namespace sync_notifier {
class SyncNotifierObserver;
} // namespace
namespace browser_sync {
// A thread-safe bridge for chrome events that can trigger sync notifications.
// Currently only listens to NOTIFICATION_SYNC_REFRESH, triggering each
// observer's OnIncomingNotification method. Only the SESSIONS datatype is
// currently expected to be able to trigger this notification.
// Note: Notifications are expected to arrive on the UI thread, but observers
// may live on any thread.
class ChromeSyncNotificationBridge : public content::NotificationObserver {
public:
explicit ChromeSyncNotificationBridge(const Profile* profile);
virtual ~ChromeSyncNotificationBridge();
// These can be called on any thread.
virtual void AddObserver(sync_notifier::SyncNotifierObserver* observer);
virtual void RemoveObserver(sync_notifier::SyncNotifierObserver* observer);
// NotificationObserver implementation. Called on UI thread.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
private:
content::NotificationRegistrar registrar_;
// Because [Add/Remove]Observer can be called from any thread, we need a
// thread-safe observerlist.
scoped_refptr<ObserverListThreadSafe<sync_notifier::SyncNotifierObserver> >
observers_;
};
} // namespace browser_sync
#endif // CHROME_BROWSER_SYNC_GLUE_CHROME_SYNC_NOTIFICATION_BRIDGE_H_
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