// 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 CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_
#define CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_
#include <map>
#include "base/basictypes.h"
#include "base/containers/hash_tables.h"
#include "base/id_map.h"
#include "content/common/content_export.h"
#include "third_party/WebKit/public/web/WebNotification.h"
namespace content {
// This class manages the set of active Notification objects in either
// a render or worker process. This class should be accessed only on
// the main thread.
class CONTENT_EXPORT ActiveNotificationTracker {
public:
ActiveNotificationTracker();
~ActiveNotificationTracker();
// Methods for tracking active notification objects.
int RegisterNotification(const blink::WebNotification& notification);
void UnregisterNotification(int id);
bool GetId(const blink::WebNotification& notification, int& id);
bool GetNotification(int id, blink::WebNotification* notification);
// Clears out all active notifications. Useful on page navigation.
void Clear();
private:
typedef std::map<blink::WebNotification, int> ReverseTable;
// Tracking maps for active notifications.
IDMap<blink::WebNotification> notification_table_;
ReverseTable reverse_notification_table_;
DISALLOW_COPY_AND_ASSIGN(ActiveNotificationTracker);
};
} // namespace content
#endif // CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_