/*

 * Copyright (C) 2009 Apple Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

 * THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef GeolocationController_h

#define GeolocationController_h

#if ENABLE(CLIENT_BASED_GEOLOCATION)

#include "Geolocation.h"

#include <wtf/HashSet.h>

#include <wtf/Noncopyable.h>

#include <wtf/RefPtr.h>

namespace WebCore {

class GeolocationControllerClient;

class GeolocationError;

class GeolocationPosition;

class Page;

class GeolocationController : public Noncopyable {

public:

    GeolocationController(Page*, GeolocationControllerClient*);

    ~GeolocationController();

    void addObserver(Geolocation*);

    void removeObserver(Geolocation*);

    void positionChanged(GeolocationPosition*);

    void errorOccurred(GeolocationError*);

    GeolocationPosition* lastPosition();

private:

    Page* m_page;

    GeolocationControllerClient* m_client;

    HashSet<RefPtr<Geolocation> > m_observers;

};

} // namespace WebCore

#endif // ENABLE(CLIENT_BASED_GEOLOCATION)

#endif // GeolocationController_h