File: GeolocationWatchers.h

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// Copyright 2014 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 GeolocationWatchers_h
#define GeolocationWatchers_h

#include "platform/heap/Handle.h"

namespace blink {

class GeoNotifier;

class GeolocationWatchers {
  DISALLOW_NEW();

 public:
  GeolocationWatchers() {}
  DECLARE_TRACE();

  bool add(int id, GeoNotifier*);
  GeoNotifier* find(int id);
  void remove(int id);
  void remove(GeoNotifier*);
  bool contains(GeoNotifier*) const;
  void clear();
  bool isEmpty() const;

  void getNotifiersVector(HeapVector<Member<GeoNotifier>>&) const;

 private:
  typedef HeapHashMap<int, Member<GeoNotifier>> IdToNotifierMap;
  typedef HeapHashMap<Member<GeoNotifier>, int> NotifierToIdMap;

  IdToNotifierMap m_idToNotifierMap;
  NotifierToIdMap m_notifierToIdMap;
};

}  // namespace blink

#endif  // GeolocationWatchers_h