Issue 4948 - add possibility to not send data depending on connection properties

libadblockplus-android/jni/JniIsAllowedConnectionTypeCallback.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "JniCallbacks.h"
+#include "Utils.h"
 
 static jlong JNICALL JniCtor(JNIEnv* env, jclass clazz, jobject callbackObject)
 {
   try
   {
-    return JniPtrToLong(new JniShowNotificationCallback(env, callbackObject));
+    JniIsAllowedConnectionTypeCallback* callback =
+      new JniIsAllowedConnectionTypeCallback(env, callbackObject);
+
+    return JniPtrToLong(callback);
   }
   CATCH_THROW_AND_RETURN(env, 0)
 }
 
 static void JNICALL JniDtor(JNIEnv* env, jclass clazz, jlong ptr)
 {
-  delete JniLongToTypePtr<JniShowNotificationCallback>(ptr);
+  delete JniLongToTypePtr<JniIsAllowedConnectionTypeCallback>(ptr);
 }
 
-JniShowNotificationCallback::JniShowNotificationCallback(JNIEnv* env,
+JniIsAllowedConnectionTypeCallback::JniIsAllowedConnectionTypeCallback(JNIEnv* env,
     jobject callbackObject)
     : JniCallbackBase(env, callbackObject)
 {
 }
 
-void JniShowNotificationCallback::Callback(
-    const AdblockPlus::NotificationPtr& notificationPtr)
+bool JniIsAllowedConnectionTypeCallback::Callback(const std::string* allowedConnectionType)
 {
   JNIEnvAcquire env(GetJavaVM());
 
   jmethodID method = env->GetMethodID(
-      *JniLocalReference<jclass>(*env,
-          env->GetObjectClass(GetCallbackObject())),
-      "showNotificationCallback", "(" TYP("Notification") ")V");
+      *JniLocalReference<jclass>(*env, env->GetObjectClass(GetCallbackObject())),
+      "isConnectionAllowed",
+      "(Ljava/lang/String;)Z");
 
-  if (method)
-  {
-    JniLocalReference<jobject> jNotification(*env, NewJniNotification(*env,
-        notificationPtr));
-    env->CallVoidMethod(GetCallbackObject(), method, *jNotification);
-  }
+  jstring jAllowedConnectionType =
+    (allowedConnectionType != NULL
+    ? JniStdStringToJava(*env, *allowedConnectionType)
+    : NULL);
+  bool result = env->CallBooleanMethod(GetCallbackObject(), method, jAllowedConnectionType);
 
   CheckAndLogJavaException(*env);
+  return result;
 }
 
 static JNINativeMethod methods[] =
 {
   { (char*)"ctor", (char*)"(Ljava/lang/Object;)J", (void*)JniCtor },
   { (char*)"dtor", (char*)"(J)V", (void*)JniDtor }
 };
 
-extern "C" JNIEXPORT void JNICALL Java_org_adblockplus_libadblockplus_ShowNotificationCallback_registerNatives(JNIEnv *env, jclass clazz)
+extern "C" JNIEXPORT void JNICALL Java_org_adblockplus_libadblockplus_IsAllowedConnectionCallback_registerNatives(JNIEnv *env, jclass clazz)
 {
   env->RegisterNatives(clazz, methods, sizeof(methods) / sizeof(methods[0]));
 }