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      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 #if PLATFORM(ANDROID)
     51     // TODO: Upstream to webkit.org. See https://bugs.webkit.org/show_bug.cgi?id=34082
     52     virtual bool startUpdating(PositionOptions*, bool suspend) { return false; }
     53 #else
     54     virtual bool startUpdating(PositionOptions*) { return false; }
     55 #endif
     56     virtual void stopUpdating() { }
     57 
     58     virtual void suspend() { }
     59     virtual void resume() { }
     60 
     61     virtual Geoposition* lastPosition() const { return 0; }
     62     virtual PositionError* lastError() const { return 0; }
     63 
     64     void positionChanged();
     65     void errorOccurred();
     66 
     67     static void useMock();
     68 
     69 protected:
     70     GeolocationService(GeolocationServiceClient*);
     71 
     72 private:
     73     GeolocationServiceClient* m_geolocationServiceClient;
     74 
     75     typedef GeolocationService* (FactoryFunction)(GeolocationServiceClient*);
     76     static FactoryFunction* s_factoryFunction;
     77 };
     78 
     79 } // namespace WebCore
     80 
     81 #endif // GeolocationService_h
     82