ABP/Android V8 integration code

jni/utilityOps.cpp

Index: jni/utilityOps.cpp
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+/*
+ * This file is part of the Adblock Plus,
+ * Copyright (C) 2006-2012 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 <string>
+#include "debug.h"
+#include "ops.h"
+#include "wrap.h"
+
+v8::Handle<v8::Value> loadImpl(const v8::Arguments& args)
+{
+  D(D_WARN, "load()");
+  v8::HandleScope handle_scope;
+
+  JNIEnv* jniEnv = NULL;
+  if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
+    return v8::ThrowException(v8::String::New("Failed to get JNI environment"));
+
+  if (args.Length() < 1)
+    return v8::ThrowException(v8::String::New("File name expected"));
+
+  v8::String::Utf8Value str(args[0]);
+  if (!*str)
+    return v8::ThrowException(v8::String::New("File name isn't a string"));
+
+  jstring jstr = jniEnv->NewStringUTF(*str);
+
+  jstring result;
+  jclass cls = jniEnv->GetObjectClass(jniCallback);
+  jmethodID mid = jniEnv->GetMethodID(cls, "readJSFile", "(Ljava/lang/String;)Ljava/lang/String;");
+  if (mid)
+    result = (jstring) jniEnv->CallObjectMethod(jniCallback, mid, jstr);
+  jniEnv->DeleteLocalRef(jstr);
+
+  /*
+  const char* src = jniEnv->GetStringUTFChars(result, 0);
+  v8::Handle<v8::String> source = v8::String::New(src, jniEnv->GetStringLength(result));
+  jniEnv->ReleaseStringUTFChars(result, src);
+  */
+  v8::Handle<v8::String> source = v8::Handle<v8::String>::Cast(wrapJavaObject(jniEnv, result));
+  v8::Handle<v8::Script> script = v8::Script::Compile(source, args[0]);
+  if (!script.IsEmpty())
+    script->Run();
+
+  return v8::Undefined();
+}
+
+v8::Handle<v8::Value> setStatusImpl(const v8::Arguments& args)
+{
+  D(D_WARN, "setStatus()");
+  v8::HandleScope handle_scope;
+
+  JNIEnv* jniEnv = NULL;
+  if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
+    return v8::ThrowException(v8::String::New("Failed to get JNI environment"));
+
+  if (args.Length() < 2)
+    return v8::ThrowException(v8::String::New("Not enough parameters"));
+
+  if (!args[0]->IsString())
+    return v8::ThrowException(v8::String::New("Parameter 0 must be a string"));
+  if (!args[1]->IsNumber())
+    return v8::ThrowException(v8::String::New("Parameter 1 must be a number"));
+
+  v8::String::Utf8Value str(args[0]);
+  if (!*str)
+    return v8::ThrowException(v8::String::New("Parameter cannot be converted to string"));
+  jstring jstr = jniEnv->NewStringUTF(*str);
+
+  jlong jnum = (v8::Handle<v8::Integer>::Cast(args[1]))->Value();
+
+  static jclass cls = jniEnv->GetObjectClass(jniCallback);
+  static jmethodID mid = jniEnv->GetMethodID(cls, "setStatus", "(Ljava/lang/String;J)V");
+  if (mid)
+    jniEnv->CallVoidMethod(jniCallback, mid, jstr, jnum);
+  jniEnv->DeleteLocalRef(jstr);
+
+  return v8::Undefined();
+}
+
+v8::Handle<v8::Value> canAutoupdateImpl(const v8::Arguments& args)
+{
+  D(D_WARN, "canAutoupdate()");
+  v8::HandleScope handle_scope;
+
+  JNIEnv* jniEnv = NULL;
+  if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
+    return v8::ThrowException(v8::String::New("Failed to get JNI environment"));
+
+  jboolean result;
+  jclass cls = jniEnv->GetObjectClass(jniCallback);
+  jmethodID mid = jniEnv->GetMethodID(cls, "canAutoupdate", "()Z");
+  if (mid)
+    result = jniEnv->CallBooleanMethod(jniCallback, mid);
+  return wrapJavaObject(jniEnv, NewBoolean(jniEnv, result));
+}
+
+v8::Handle<v8::Value> showToastImpl(const v8::Arguments& args)
+{
+  D(D_WARN, "showToast()");
+  v8::HandleScope handle_scope;
+
+  JNIEnv* jniEnv = NULL;
+  if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
+    return v8::ThrowException(v8::String::New("Failed to get JNI environment"));
+
+  if (args.Length() < 1)
+    return v8::ThrowException(v8::String::New("String expected"));
+
+  v8::String::Utf8Value str(args[0]);
+  if (!*str)
+      return v8::ThrowException(v8::String::New("Parameter cannot be converted to string"));
+
+  jstring jstr = jniEnv->NewStringUTF(*str);
+
+  static jclass cls = jniEnv->GetObjectClass(jniCallback);
+  static jmethodID mid = jniEnv->GetMethodID(cls, "showToast", "(Ljava/lang/String;)V");
+  if (mid)
+      jniEnv->CallVoidMethod(jniCallback, mid, jstr);
+  jniEnv->DeleteLocalRef(jstr);
+
+  return v8::Undefined();
+}
+
+v8::Handle<v8::Value> printImpl(const v8::Arguments& args)
+{
+  D(D_WARN, "print()");
+  bool first = true;
+  std::string msg = "";
+  for (int i = 0; i < args.Length(); i++)
+  {
+    v8::HandleScope handle_scope;
+    if (first)
+      first = false;
+    else
+      msg += " ";
+    v8::String::Utf8Value str(args[i]);
+    if (!*str)
+      return v8::ThrowException(v8::String::New("Parameter cannot be converted to string"));
+    msg += *str;
+  }
+
+  return v8::Undefined();
+}