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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 #include "config.h"
     27 
     28 #include <JNIHelp.h>  // For jniRegisterNativeMethods
     29 #include "GeolocationPermissions.h"
     30 #include "WebCoreJni.h"  // For jstringToWtfString
     31 
     32 
     33 /**
     34  * This file provides a set of functions to bridge between the Java and C++
     35  * GeolocationPermissions classes. The java GeolocationPermissions object calls
     36  * the functions provided here, which in turn call static methods on the C++
     37  * GeolocationPermissions class.
     38  */
     39 
     40 namespace android {
     41 
     42 static jobject getOrigins(JNIEnv* env, jobject obj)
     43 {
     44     GeolocationPermissions::OriginSet origins = GeolocationPermissions::getOrigins();
     45 
     46     jclass setClass = env->FindClass("java/util/HashSet");
     47     jmethodID constructor = env->GetMethodID(setClass, "<init>", "()V");
     48     jmethodID addMethod = env->GetMethodID(setClass, "add", "(Ljava/lang/Object;)Z");
     49     jobject set = env->NewObject(setClass, constructor);
     50     env->DeleteLocalRef(setClass);
     51 
     52     GeolocationPermissions::OriginSet::const_iterator end = origins.end();
     53     for (GeolocationPermissions::OriginSet::const_iterator iter = origins.begin(); iter != end; ++iter) {
     54         jstring originString = wtfStringToJstring(env, *iter);
     55         env->CallBooleanMethod(set, addMethod, originString);
     56         env->DeleteLocalRef(originString);
     57     }
     58     return set;
     59 }
     60 
     61 static bool getAllowed(JNIEnv* env, jobject obj, jstring origin)
     62 {
     63     WTF::String originString = jstringToWtfString(env, origin);
     64     return GeolocationPermissions::getAllowed(originString);
     65 }
     66 
     67 static void clear(JNIEnv* env, jobject obj, jstring origin)
     68 {
     69     WTF::String originString = jstringToWtfString(env, origin);
     70     GeolocationPermissions::clear(originString);
     71 }
     72 
     73 static void allow(JNIEnv* env, jobject obj, jstring origin)
     74 {
     75     WTF::String originString = jstringToWtfString(env, origin);
     76     GeolocationPermissions::allow(originString);
     77 }
     78 
     79 static void clearAll(JNIEnv* env, jobject obj)
     80 {
     81     GeolocationPermissions::clearAll();
     82 }
     83 
     84 /*
     85  * JNI registration
     86  */
     87 static JNINativeMethod gGeolocationPermissionsMethods[] = {
     88     { "nativeGetOrigins", "()Ljava/util/Set;",
     89         (void*) getOrigins },
     90     { "nativeGetAllowed", "(Ljava/lang/String;)Z",
     91         (void*) getAllowed },
     92     { "nativeClear", "(Ljava/lang/String;)V",
     93         (void*) clear },
     94     { "nativeAllow", "(Ljava/lang/String;)V",
     95         (void*) allow },
     96     { "nativeClearAll", "()V",
     97         (void*) clearAll }
     98 };
     99 
    100 int registerGeolocationPermissions(JNIEnv* env)
    101 {
    102     const char* kGeolocationPermissionsClass = "android/webkit/GeolocationPermissions";
    103 #ifndef NDEBUG
    104     jclass geolocationPermissions = env->FindClass(kGeolocationPermissionsClass);
    105     LOG_ASSERT(geolocationPermissions, "Unable to find class");
    106     env->DeleteLocalRef(geolocationPermissions);
    107 #endif
    108 
    109     return jniRegisterNativeMethods(env, kGeolocationPermissionsClass,
    110             gGeolocationPermissionsMethods, NELEM(gGeolocationPermissionsMethods));
    111 }
    112 
    113 }
    114