New JNI bindings

jni/JniJsEngine.cpp

Index: jni/JniJsEngine.cpp
diff --git a/jni/JniJsEngine.cpp b/jni/JniJsEngine.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..f74253f63881277d6be8dd06a64b82e13486160c
--- /dev/null
+++ b/jni/JniJsEngine.cpp
@@ -0,0 +1,260 @@
+/*
+ * This file is part of Adblock Plus <http://adblockplus.org/>,
+ * Copyright (C) 2006-2014 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 <AdblockPlus.h>
+#include "Utils.h"
+#include "JniCallbacks.h"
+
+static void TransformAppInfo(JNIEnv* env, jobject jAppInfo, AdblockPlus::AppInfo& appInfo)
+{
+  jclass clazz = env->GetObjectClass(jAppInfo);
+
+  appInfo.application = JniGetStringField(env, clazz, jAppInfo, "application");
+  appInfo.applicationVersion = JniGetStringField(env, clazz, jAppInfo, "applicationVersion");
+  appInfo.id = JniGetStringField(env, clazz, jAppInfo, "id");
+  appInfo.locale = JniGetStringField(env, clazz, jAppInfo, "locale");
+  appInfo.name = JniGetStringField(env, clazz, jAppInfo, "name");
+  appInfo.version = JniGetStringField(env, clazz, jAppInfo, "version");
+
+  appInfo.developmentBuild = JniGetBooleanField(env, clazz, jAppInfo, "developmentBuild");
+}
+
+static jlong JNICALL JniCtor(JNIEnv* env, jclass clazz, jobject jAppInfo)
+{
+  AdblockPlus::AppInfo appInfo;
+
+  TransformAppInfo(env, jAppInfo, appInfo);
+
+  TRY
+  {
+    return JniPtrToLong(new AdblockPlus::JsEnginePtr(AdblockPlus::JsEngine::New(appInfo)));
+  }
+  CATCH_THROW_AND_RETURN(env, 0)
+}
+
+static void JNICALL JniDtor(JNIEnv* env, jclass clazz, jlong ptr)
+{
+  delete JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+}
+
+static void JNICALL JniSetEventCallback(JNIEnv* env, jclass clazz, jlong ptr, jstring jEventName, jlong jCallbackPtr)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  JniEventCallback* callback = JniLongToTypePtr<JniEventCallback>(jCallbackPtr);
+  std::string eventName = JniJavaToStdString(env, jEventName);
+  AdblockPlus::JsEngine::EventCallback eCallback = std::tr1::bind(&JniEventCallback::Callback, callback, std::tr1::placeholders::_1);
+
+  TRY
+  {
+    engine->SetEventCallback(eventName, eCallback);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static void JNICALL JniRemoveEventCallback(JNIEnv* env, jclass clazz, jlong ptr, jstring jEventName)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  std::string eventName = JniJavaToStdString(env, jEventName);
+
+  TRY
+  {
+    engine->RemoveEventCallback(eventName);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static jobject JNICALL JniEvaluate(JNIEnv* env, jclass clazz, jlong ptr, jstring jSource, jstring jFilename)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  std::string source = JniJavaToStdString(env, jSource);
+  std::string filename = JniJavaToStdString(env, jFilename);
+
+  TRY
+  {
+    AdblockPlus::JsValuePtr jsValue = engine->Evaluate(source, filename);
+    return NewJniJsValue(env, jsValue);
+  }
+  CATCH_THROW_AND_RETURN(env, 0)
+}
+
+static void JNICALL JniTriggerEvent(JNIEnv* env, jclass clazz, jlong ptr, jstring jEventName, jarray jJsPtrs)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+  std::string eventName = JniJavaToStdString(env, jEventName);
+  AdblockPlus::JsValueList args;
+
+  if (jJsPtrs)
+  {
+    jlong* ptrs = (jlong*)env->GetPrimitiveArrayCritical(jJsPtrs, 0);
+
+    jsize length = env->GetArrayLength(jJsPtrs);
+
+    for (jsize i = 0; i < length; i++)
+    {
+      args.push_back(JniGetJsValuePtr(ptrs[i]));
+    }
+
+    env->ReleasePrimitiveArrayCritical(jJsPtrs, ptrs, JNI_ABORT);
+  }
+
+  TRY
+  {
+    engine->TriggerEvent(eventName, args);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static void JNICALL JniSetDefaultFileSystem(JNIEnv* env, jclass clazz, jlong ptr, jstring jBasePath)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::FileSystemPtr fileSystem(new AdblockPlus::DefaultFileSystem());
+
+    std::string basePath = JniJavaToStdString(env, jBasePath);
+    reinterpret_cast<AdblockPlus::DefaultFileSystem*>(fileSystem.get())->SetBasePath(basePath);
+
+    engine->SetFileSystem(fileSystem);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static void JNICALL JniSetDefaultWebRequest(JNIEnv* env, jclass clazz, jlong ptr)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::WebRequestPtr webRequest(new AdblockPlus::DefaultWebRequest());
+
+    engine->SetWebRequest(webRequest);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static void JNICALL JniSetDefaultLogSystem(JNIEnv* env, jclass clazz, jlong ptr)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::LogSystemPtr logSystem(new AdblockPlus::DefaultLogSystem());
+
+    engine->SetLogSystem(logSystem);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static void JNICALL JniSetLogSystem(JNIEnv* env, jclass clazz, jlong ptr, jlong logSystemPtr)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::LogSystemPtr logSystem(JniLongToTypePtr<JniLogSystemCallback>(logSystemPtr));
+
+    engine->SetLogSystem(logSystem);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static void JNICALL JniSetWebRequest(JNIEnv* env, jclass clazz, jlong ptr, jlong webRequestPtr)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::WebRequestPtr& webRequest = *JniLongToTypePtr<AdblockPlus::WebRequestPtr>(webRequestPtr);
+
+    engine->SetWebRequest(webRequest);
+  }
+  CATCH_AND_THROW(env)
+}
+
+static jobject JNICALL JniNewLongValue(JNIEnv* env, jclass clazz, jlong ptr, jlong value)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::JsValuePtr jsValue = engine->NewValue(static_cast<int64_t>(value));
+    return NewJniJsValue(env, jsValue);
+  }
+  CATCH_THROW_AND_RETURN(env, 0)
+}
+
+static jobject JNICALL JniNewBooleanValue(JNIEnv* env, jclass clazz, jlong ptr, jboolean value)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    AdblockPlus::JsValuePtr jsValue = engine->NewValue(value == JNI_TRUE ? true : false);
+    return NewJniJsValue(env, jsValue);
+  }
+  CATCH_THROW_AND_RETURN(env, 0)
+}
+
+static jobject JNICALL JniNewStringValue(JNIEnv* env, jclass clazz, jlong ptr, jstring value)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  TRY
+  {
+    std::string strValue = JniJavaToStdString(env, value);
+    AdblockPlus::JsValuePtr jsValue = engine->NewValue(strValue);
+    return NewJniJsValue(env, jsValue);
+  }
+  CATCH_THROW_AND_RETURN(env, 0)
+}
+
+// TODO: List of functions that lack JNI bindings
+//JsValuePtr NewObject();
+//JsValuePtr NewCallback(v8::InvocationCallback callback);
+//static JsEnginePtr FromArguments(const v8::Arguments& arguments);
+//JsValueList ConvertArguments(const v8::Arguments& arguments);
+
+static JNINativeMethod methods[] =
+{
+  { (char*)"ctor", (char*)"(" TYP("AppInfo") ")J", (void*)JniCtor },
+  { (char*)"dtor", (char*)"(J)V", (void*)JniDtor },
+
+  { (char*)"setEventCallback", (char*)"(JLjava/lang/String;J)V", (void*)JniSetEventCallback },
+  { (char*)"removeEventCallback", (char*)"(JLjava/lang/String;)V", (void*)JniRemoveEventCallback },
+  { (char*)"triggerEvent", (char*)"(JLjava/lang/String;[J)V", (void*)JniTriggerEvent },
+
+  { (char*)"evaluate", (char*)"(JLjava/lang/String;Ljava/lang/String;)" TYP("JsValue"), (void*)JniEvaluate },
+
+  { (char*)"setDefaultFileSystem", (char*)"(JLjava/lang/String;)V", (void*)JniSetDefaultFileSystem },
+  { (char*)"setLogSystem", (char*)"(JJ)V", (void*)JniSetLogSystem },
+  { (char*)"setDefaultLogSystem", (char*)"(J)V", (void*)JniSetDefaultLogSystem },
+  { (char*)"setWebRequest", (char*)"(JJ)V", (void*)JniSetWebRequest },
+  { (char*)"setDefaultWebRequest", (char*)"(J)V", (void*)JniSetDefaultWebRequest },
+
+  { (char*)"newValue", (char*)"(JJ)"TYP("JsValue"), (void*)JniNewLongValue },
+  { (char*)"newValue", (char*)"(JZ)"TYP("JsValue"), (void*)JniNewBooleanValue },
+  { (char*)"newValue", (char*)"(JLjava/lang/String;)"TYP("JsValue"), (void*)JniNewStringValue }
+};
+
+extern "C" JNIEXPORT void JNICALL Java_org_adblockplus_android_api_JsEngine_registerNatives(JNIEnv *env, jclass clazz)
+{
+  env->RegisterNatives(clazz, methods, sizeof(methods) / sizeof(methods[0]));
+}