1 /*

     2  * Copyright (C) 2008 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. ``AS IS'' AND ANY

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

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

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

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    25 

    26 #ifndef GeolocationService_h

    27 #define GeolocationService_h

    28 

    29 #include <wtf/Noncopyable.h>

    30 

    31 namespace WebCore {

    32 

    33 class GeolocationService;

    34 class Geoposition;

    35 class PositionError;

    36 class PositionOptions;

    37 

    38 class GeolocationServiceClient {

    39 public:

    40     virtual ~GeolocationServiceClient() { }

    41     virtual void geolocationServicePositionChanged(GeolocationService*) = 0;

    42     virtual void geolocationServiceErrorOccurred(GeolocationService*) = 0;

    43 };

    44 

    45 class GeolocationService : public Noncopyable {

    46 public:

    47     static GeolocationService* create(GeolocationServiceClient*);

    48     virtual ~GeolocationService() { }

    49 

    50     virtual bool startUpdating(PositionOptions*) { return false; }

    51     virtual void stopUpdating() { }

    52 

    53     virtual void suspend() { }

    54     virtual void resume() { }

    55 

    56     virtual Geoposition* lastPosition() const { return 0; }

    57     virtual PositionError* lastError() const { return 0; }

    58 

    59     void positionChanged();

    60     void errorOccurred();

    61 

    62     static void useMock();

    63     typedef GeolocationService* (FactoryFunction)(GeolocationServiceClient*);

    64     static void setCustomMockFactory(FactoryFunction);

    65 

    66 protected:

    67     GeolocationService(GeolocationServiceClient*);

    68     GeolocationServiceClient* geolocationServiceClient() const { return m_geolocationServiceClient; }

    69 

    70 private:

    71     GeolocationServiceClient* m_geolocationServiceClient;

    72 

    73     static FactoryFunction* s_factoryFunction;

    74     static FactoryFunction* s_mockFactoryFunction;

    75 };

    76 

    77 } // namespace WebCore

    78 

    79 #endif // GeolocationService_h