Home | History | Annotate | Download | only in jni 
      1 /*
      2  * Copyright 2012, 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 GeolocationServiceBridge_h
     27 #define GeolocationServiceBridge_h
     28 
     29 #include <JNIUtility.h>
     30 #include <wtf/PassRefPtr.h>
     31 
     32 namespace WebCore {
     33 class GeolocationError;
     34 class GeolocationPosition;
     35 }
     36 
     37 namespace android {
     38 
     39 class WebViewCore;
     40 
     41 // GeolocationServiceBridge is the bridge to the Java implementation. It manages
     42 // the lifetime of the Java object. It is an implementation detail of
     43 // GeolocationClientAndroid.
     44 class GeolocationServiceBridge {
     45 public:
     46     class Listener {
     47     public:
     48         virtual ~Listener() {}
     49         virtual void newPositionAvailable(PassRefPtr<WebCore::GeolocationPosition>) = 0;
     50         virtual void newErrorAvailable(PassRefPtr<WebCore::GeolocationError>) = 0;
     51     };
     52 
     53     GeolocationServiceBridge(Listener*, WebViewCore*);
     54     ~GeolocationServiceBridge();
     55 
     56     bool start();
     57     void stop();
     58     void setEnableGps(bool enable);
     59 
     60     // Static wrapper functions to hide JNI nastiness.
     61     static void newLocationAvailable(JNIEnv *env, jclass, jlong nativeObject, jobject location);
     62     static void newErrorAvailable(JNIEnv *env, jclass, jlong nativeObject, jstring message);
     63     static PassRefPtr<WebCore::GeolocationPosition> toGeolocationPosition(JNIEnv *env, const jobject &location);
     64 
     65 private:
     66     void startJavaImplementation(WebViewCore*);
     67     void stopJavaImplementation();
     68 
     69     Listener* m_listener;
     70     jobject m_javaGeolocationServiceObject;
     71 };
     72 
     73 } // namespace android
     74 
     75 #endif // GeolocationServiceBridge_h
     76