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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:
~Listener()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