/*

 * Copyright 2010, The Android Open Source Project

 *

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

 * modification, are permitted provided that the following conditions

 * are met:

 *  * Redistributions of source code must retain the above copyright

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

 *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER OR

 * 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 GeolocationPositionCache_h

#define GeolocationPositionCache_h

#include <wtf/PassRefPtr.h>

#include <wtf/RefPtr.h>

namespace WebCore {

class Geoposition;

class String;

class GeolocationPositionCache {

  public:

    GeolocationPositionCache();

    ~GeolocationPositionCache();

    void setCachedPosition(Geoposition*);

    Geoposition* cachedPosition();

    static void setDatabasePath(const String&);

  private:

    static PassRefPtr<Geoposition> readFromDB();

    static void writeToDB(const Geoposition*);

    static int s_instances;

    static RefPtr<Geoposition>* s_cachedPosition;

    static String* s_databaseFile;

};

} // namespace WebCore

#endif // GeolocationPositionCache_h