WebCore/platform/android/GeolocationServiceBridge.h

/*
 * Copyright 2009, 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 GeolocationServiceBridge_h
#define GeolocationServiceBridge_h

#include "JNIUtility.h"
#include <wtf/PassRefPtr.h>

namespace WebCore {

class GeolocationServiceAndroid;
class Geoposition;

// GeolocationServiceBridge is the bridge to the Java implementation. It manages
// the lifetime of the Java object. It is an implementation detail of
// GeolocationServiceAndroid.
class GeolocationServiceBridge {
public:
    typedef GeolocationServiceAndroid ListenerInterface;
    GeolocationServiceBridge(ListenerInterface* listener);
    ~GeolocationServiceBridge();

    void start();
    void stop();
    void setEnableGps(bool enable);

    // Static wrapper functions to hide JNI nastiness.
    static void newLocationAvailable(JNIEnv *env, jclass, jlong nativeObject, jobject location);
    static void newErrorAvailable(JNIEnv *env, jclass, jlong nativeObject, jstring message);
    static PassRefPtr<Geoposition> toGeoposition(JNIEnv *env, const jobject &location);

private:
    void startJavaImplementation();
    void stopJavaImplementation();

    ListenerInterface* m_listener;
    jobject m_javaGeolocationServiceObject;
};

} // namespace WebCore

#endif // GeolocationServiceBridge_h