1 /*

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

     3  *

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

     5  * modification, are permitted provided that the following conditions

     6  * are met:

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

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

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

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

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

    12  *

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

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

    15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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

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

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

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

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

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

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

    23  * THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    25 

    26 #ifndef GeolocationController_h

    27 #define GeolocationController_h

    28 

    29 #if ENABLE(CLIENT_BASED_GEOLOCATION)

    30 

    31 #include "Geolocation.h"

    32 #include <wtf/HashSet.h>

    33 #include <wtf/Noncopyable.h>

    34 #include <wtf/RefPtr.h>

    35 

    36 namespace WebCore {

    37 

    38 class GeolocationControllerClient;

    39 class GeolocationError;

    40 class GeolocationPosition;

    41 class Page;

    42 

    43 class GeolocationController : public Noncopyable {

    44 public:

    45     GeolocationController(Page*, GeolocationControllerClient*);

    46     ~GeolocationController();

    47 

    48     void addObserver(Geolocation*);

    49     void removeObserver(Geolocation*);

    50 

    51     void positionChanged(GeolocationPosition*);

    52     void errorOccurred(GeolocationError*);

    53 

    54     GeolocationPosition* lastPosition();

    55 

    56 private:

    57     Page* m_page;

    58     GeolocationControllerClient* m_client;

    59 

    60     RefPtr<GeolocationPosition> m_lastPosition;

    61     HashSet<RefPtr<Geolocation> > m_observers;

    62 };

    63 

    64 } // namespace WebCore

    65 

    66 #endif // ENABLE(CLIENT_BASED_GEOLOCATION)

    67 

    68 #endif // GeolocationController_h