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      1 /*
      2  * Copyright 2009, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 GeolocationServiceAndroid_h
     27 #define GeolocationServiceAndroid_h
     28 
     29 #include "GeolocationService.h"
     30 #include "Timer.h"
     31 #include <wtf/OwnPtr.h>
     32 #include <wtf/PassRefPtr.h>
     33 #include <wtf/RefPtr.h>
     34 
     35 namespace WebCore {
     36 
     37 // The GeolocationServiceBridge is the bridge to the Java implementation of
     38 // the Geolocation service. It is an implementation detail of
     39 // GeolocationServiceAndroid.
     40 class GeolocationServiceBridge;
     41 
     42 class GeolocationServiceAndroid : public GeolocationService {
     43 public:
     44     static GeolocationService* create(GeolocationServiceClient*);
     45 
     46     virtual ~GeolocationServiceAndroid() { };
     47 
     48     // ANDROID
     49     // TODO: Upstream to webkit.org. See https://bugs.webkit.org/show_bug.cgi?id=34082
     50     virtual bool startUpdating(PositionOptions*, bool suspend);
     51     virtual void stopUpdating();
     52 
     53     virtual Geoposition* lastPosition() const { return m_lastPosition.get(); }
     54     virtual PositionError* lastError() const { return m_lastError.get(); }
     55 
     56     virtual void suspend();
     57     virtual void resume();
     58 
     59     // Android-specific
     60     void newPositionAvailable(PassRefPtr<Geoposition>);
     61     void newErrorAvailable(PassRefPtr<PositionError>);
     62     void timerFired(Timer<GeolocationServiceAndroid>* timer);
     63 
     64 private:
     65     GeolocationServiceAndroid(GeolocationServiceClient*);
     66 
     67     static bool isPositionMovement(Geoposition* position1, Geoposition* position2);
     68     static bool isPositionMoreAccurate(Geoposition* position1, Geoposition* position2);
     69     static bool isPositionMoreTimely(Geoposition* position1, Geoposition* position2);
     70 
     71     Timer<GeolocationServiceAndroid> m_timer;
     72     RefPtr<Geoposition> m_lastPosition;
     73     RefPtr<PositionError> m_lastError;
     74     OwnPtr<GeolocationServiceBridge> m_javaBridge;
     75 };
     76 
     77 } // namespace WebCore
     78 
     79 #endif // GeolocationServiceAndroid_h
     80