const char* JavaMethod::signature() const
{
if (!m_signature) {
#if USE(JSC)
JSLock lock(SilenceAssertionsOnly);
#endif
StringBuilder signatureBuilder;
signatureBuilder.append("(");
for (int i = 0; i < m_numParameters; i++) {
JavaParameter* aParameter = parameterAt(i);
JNIType type = aParameter->getJNIType();
if (type == array_type)
appendClassName(signatureBuilder, aParameter->type());
else {
signatureBuilder.append(signatureFromPrimitiveType(type));
if (type == object_type) {
appendClassName(signatureBuilder, aParameter->type());
signatureBuilder.append(";");
}
}
}
signatureBuilder.append(")");
const char* returnType = m_returnType.UTF8String();
if (m_JNIReturnType == array_type)
appendClassName(signatureBuilder, returnType);
else {
signatureBuilder.append(signatureFromPrimitiveType(m_JNIReturnType));
if (m_JNIReturnType == object_type) {
appendClassName(signatureBuilder, returnType);
signatureBuilder.append(";");
}
}
String signatureString = signatureBuilder.toString();
m_signature = fastStrDup(signatureString.utf8().data());
}
return m_signature;
}
const char *JavaMethod::signature() const
{
if (!_signature) {
JSLock lock(false);
UString signatureBuilder("(");
for (int i = 0; i < _numParameters; i++) {
JavaParameter* aParameter = parameterAt(i);
JNIType _JNIType = aParameter->getJNIType();
if (_JNIType == array_type)
appendClassName(signatureBuilder, aParameter->type());
else {
signatureBuilder.append(signatureFromPrimitiveType(_JNIType));
if (_JNIType == object_type) {
appendClassName(signatureBuilder, aParameter->type());
signatureBuilder.append(";");
}
}
}
signatureBuilder.append(")");
const char *returnType = _returnType.UTF8String();
if (_JNIReturnType == array_type) {
appendClassName(signatureBuilder, returnType);
} else {
signatureBuilder.append(signatureFromPrimitiveType(_JNIReturnType));
if (_JNIReturnType == object_type) {
appendClassName(signatureBuilder, returnType);
signatureBuilder.append(";");
}
}
_signature = strdup(signatureBuilder.ascii());
}
return _signature;
}
JSValue JavaInstance::invokeMethod(ExecState* exec, RuntimeMethod* runtimeMethod, const ArgList &args)
{
if (!asObject(runtimeMethod)->inherits(&JavaRuntimeMethod::s_info))
return throwError(exec, TypeError, "Attempt to invoke non-Java method on Java object.");
const MethodList& methodList = *runtimeMethod->methods();
int i;
int count = args.size();
JSValue resultValue;
Method* method = 0;
size_t numMethods = methodList.size();
// Try to find a good match for the overloaded method. The
// fundamental problem is that JavaScript doesn't have the
// notion of method overloading and Java does. We could
// get a bit more sophisticated and attempt to does some
// type checking as we as checking the number of parameters.
for (size_t methodIndex = 0; methodIndex < numMethods; methodIndex++) {
Method* aMethod = methodList[methodIndex];
if (aMethod->numParameters() == count) {
method = aMethod;
break;
}
}
if (!method) {
LOG(LiveConnect, "JavaInstance::invokeMethod unable to find an appropiate method");
return jsUndefined();
}
const JavaMethod* jMethod = static_cast<const JavaMethod*>(method);
LOG(LiveConnect, "JavaInstance::invokeMethod call %s %s on %p", UString(jMethod->name()).UTF8String().data(), jMethod->signature(), m_instance->m_instance);
Vector<jvalue> jArgs(count);
for (i = 0; i < count; i++) {
JavaParameter* aParameter = jMethod->parameterAt(i);
jArgs[i] = convertValueToJValue(exec, m_rootObject.get(), args.at(i), aParameter->getJNIType(), aParameter->type());
LOG(LiveConnect, "JavaInstance::invokeMethod arg[%d] = %s", i, args.at(i).toString(exec).ascii());
}
jvalue result;
// Try to use the JNI abstraction first, otherwise fall back to
// normal JNI. The JNI dispatch abstraction allows the Java plugin
// to dispatch the call on the appropriate internal VM thread.
RootObject* rootObject = this->rootObject();
if (!rootObject)
return jsUndefined();
bool handled = false;
if (rootObject->nativeHandle()) {
jobject obj = m_instance->m_instance;
JSValue exceptionDescription;
const char *callingURL = 0; // FIXME, need to propagate calling URL to Java
handled = dispatchJNICall(exec, rootObject->nativeHandle(), obj, jMethod->isStatic(), jMethod->JNIReturnType(), jMethod->methodID(obj), jArgs.data(), result, callingURL, exceptionDescription);
if (exceptionDescription) {
throwError(exec, GeneralError, exceptionDescription.toString(exec));
return jsUndefined();
}
}
#ifdef BUILDING_ON_TIGER
if (!handled) {
jobject obj = m_instance->m_instance;
switch (jMethod->JNIReturnType()) {
case void_type:
callJNIMethodIDA<void>(obj, jMethod->methodID(obj), jArgs.data());
break;
case object_type:
result.l = callJNIMethodIDA<jobject>(obj, jMethod->methodID(obj), jArgs.data());
break;
case boolean_type:
result.z = callJNIMethodIDA<jboolean>(obj, jMethod->methodID(obj), jArgs.data());
break;
case byte_type:
result.b = callJNIMethodIDA<jbyte>(obj, jMethod->methodID(obj), jArgs.data());
break;
case char_type:
result.c = callJNIMethodIDA<jchar>(obj, jMethod->methodID(obj), jArgs.data());
break;
case short_type:
result.s = callJNIMethodIDA<jshort>(obj, jMethod->methodID(obj), jArgs.data());
break;
case int_type:
result.i = callJNIMethodIDA<jint>(obj, jMethod->methodID(obj), jArgs.data());
break;
case long_type:
result.j = callJNIMethodIDA<jlong>(obj, jMethod->methodID(obj), jArgs.data());
break;
case float_type:
result.f = callJNIMethodIDA<jfloat>(obj, jMethod->methodID(obj), jArgs.data());
break;
case double_type:
result.d = callJNIMethodIDA<jdouble>(obj, jMethod->methodID(obj), jArgs.data());
break;
case array_type:
case invalid_type:
break;
}
}
#endif
switch (jMethod->JNIReturnType()) {
case void_type:
{
resultValue = jsUndefined();
}
break;
case object_type:
{
if (result.l) {
// FIXME: array_type return type is handled below, can we actually get an array here?
const char* arrayType = jMethod->returnType();
if (arrayType[0] == '[')
resultValue = JavaArray::convertJObjectToArray(exec, result.l, arrayType, rootObject);
else {
jobject classOfInstance = callJNIMethod<jobject>(result.l, "getClass", "()Ljava/lang/Class;");
jstring className = static_cast<jstring>(callJNIMethod<jobject>(classOfInstance, "getName", "()Ljava/lang/String;"));
if (!strcmp(JavaString(className).UTF8String(), "sun.plugin.javascript.webkit.JSObject")) {
// Pull the nativeJSObject value from the Java instance. This is a pointer to the JSObject.
JNIEnv* env = getJNIEnv();
jfieldID fieldID = env->GetFieldID(static_cast<jclass>(classOfInstance), "nativeJSObject", "J");
jlong nativeHandle = env->GetLongField(result.l, fieldID);
// FIXME: Handling of undefined values differs between functions in JNIUtilityPrivate.cpp and those in those in jni_jsobject.mm,
// and so it does between different versions of LiveConnect spec. There should not be multiple code paths to do the same work.
if (nativeHandle == 1 /* UndefinedHandle */)
return jsUndefined();
return static_cast<JSObject*>(jlong_to_ptr(nativeHandle));
} else
return JavaInstance::create(result.l, rootObject)->createRuntimeObject(exec);
}
} else
return jsUndefined();
}
break;
case boolean_type:
{
resultValue = jsBoolean(result.z);
}
break;
case byte_type:
{
resultValue = jsNumber(exec, result.b);
}
break;
case char_type:
{
resultValue = jsNumber(exec, result.c);
}
break;
case short_type:
{
resultValue = jsNumber(exec, result.s);
}
break;
case int_type:
{
resultValue = jsNumber(exec, result.i);
}
break;
case long_type:
{
resultValue = jsNumber(exec, result.j);
}
break;
case float_type:
{
resultValue = jsNumber(exec, result.f);
}
break;
case double_type:
{
resultValue = jsNumber(exec, result.d);
}
break;
case array_type:
{
const char* arrayType = jMethod->returnType();
ASSERT(arrayType[0] == '[');
resultValue = JavaArray::convertJObjectToArray(exec, result.l, arrayType, rootObject);
}
break;
case invalid_type:
{
resultValue = jsUndefined();
}
break;
}
return resultValue;
}
JSValue *JavaInstance::invokeMethod (ExecState *exec, const MethodList &methodList, const ArgList &args)
{
int i, count = args.size();
jvalue *jArgs;
JSValue *resultValue;
Method *method = 0;
size_t numMethods = methodList.size();
// Try to find a good match for the overloaded method. The
// fundamental problem is that JavaScript doesn have the
// notion of method overloading and Java does. We could
// get a bit more sophisticated and attempt to does some
// type checking as we as checking the number of parameters.
Method *aMethod;
for (size_t methodIndex = 0; methodIndex < numMethods; methodIndex++) {
aMethod = methodList[methodIndex];
if (aMethod->numParameters() == count) {
method = aMethod;
break;
}
}
if (method == 0) {
JS_LOG ("unable to find an appropiate method\n");
return jsUndefined();
}
const JavaMethod *jMethod = static_cast<const JavaMethod*>(method);
JS_LOG ("call %s %s on %p\n", method->name(), jMethod->signature(), _instance->_instance);
if (count > 0) {
jArgs = (jvalue *)malloc (count * sizeof(jvalue));
}
else
jArgs = 0;
for (i = 0; i < count; i++) {
JavaParameter* aParameter = jMethod->parameterAt(i);
jArgs[i] = convertValueToJValue (exec, args.at(i), aParameter->getJNIType(), aParameter->type());
JS_LOG("arg[%d] = %s\n", i, args.at(i)->toString(exec).ascii());
}
jvalue result;
// Try to use the JNI abstraction first, otherwise fall back to
// nornmal JNI. The JNI dispatch abstraction allows the Java plugin
// to dispatch the call on the appropriate internal VM thread.
RootObject* rootObject = this->rootObject();
if (!rootObject)
return jsUndefined();
bool handled = false;
if (rootObject->nativeHandle()) {
jobject obj = _instance->_instance;
JSValue *exceptionDescription = NULL;
const char *callingURL = 0; // FIXME, need to propagate calling URL to Java
handled = dispatchJNICall(exec, rootObject->nativeHandle(), obj, jMethod->isStatic(), jMethod->JNIReturnType(), jMethod->methodID(obj), jArgs, result, callingURL, exceptionDescription);
if (exceptionDescription) {
throwError(exec, GeneralError, exceptionDescription->toString(exec));
free (jArgs);
return jsUndefined();
}
}
// The following code can be conditionally removed once we have a Tiger update that
// contains the new Java plugin. It is needed for builds prior to Tiger.
if (!handled) {
jobject obj = _instance->_instance;
switch (jMethod->JNIReturnType()){
case void_type:
callJNIMethodIDA<void>(obj, jMethod->methodID(obj), jArgs);
break;
case object_type:
result.l = callJNIMethodIDA<jobject>(obj, jMethod->methodID(obj), jArgs);
break;
case boolean_type:
result.z = callJNIMethodIDA<jboolean>(obj, jMethod->methodID(obj), jArgs);
break;
case byte_type:
result.b = callJNIMethodIDA<jbyte>(obj, jMethod->methodID(obj), jArgs);
break;
case char_type:
result.c = callJNIMethodIDA<jchar>(obj, jMethod->methodID(obj), jArgs);
break;
case short_type:
result.s = callJNIMethodIDA<jshort>(obj, jMethod->methodID(obj), jArgs);
break;
case int_type:
result.i = callJNIMethodIDA<jint>(obj, jMethod->methodID(obj), jArgs);
break;
case long_type:
result.j = callJNIMethodIDA<jlong>(obj, jMethod->methodID(obj), jArgs);
break;
case float_type:
result.f = callJNIMethodIDA<jfloat>(obj, jMethod->methodID(obj), jArgs);
break;
case double_type:
result.d = callJNIMethodIDA<jdouble>(obj, jMethod->methodID(obj), jArgs);
break;
case invalid_type:
default:
break;
}
}
switch (jMethod->JNIReturnType()){
case void_type: {
resultValue = jsUndefined();
}
break;
case object_type: {
if (result.l != 0) {
const char *arrayType = jMethod->returnType();
if (arrayType[0] == '[') {
resultValue = JavaArray::convertJObjectToArray(exec, result.l, arrayType, rootObject);
}
else {
resultValue = Instance::createRuntimeObject(exec, JavaInstance::create(result.l, rootObject));
}
}
else {
resultValue = jsUndefined();
}
}
break;
case boolean_type: {
resultValue = jsBoolean(result.z);
}
break;
case byte_type: {
resultValue = jsNumber(exec, result.b);
}
break;
case char_type: {
resultValue = jsNumber(exec, result.c);
}
break;
case short_type: {
resultValue = jsNumber(exec, result.s);
}
break;
case int_type: {
resultValue = jsNumber(exec, result.i);
}
break;
case long_type: {
resultValue = jsNumber(exec, result.j);
}
break;
case float_type: {
resultValue = jsNumber(exec, result.f);
}
break;
case double_type: {
resultValue = jsNumber(exec, result.d);
}
break;
case invalid_type:
default: {
resultValue = jsUndefined();
}
break;
}
free (jArgs);
return resultValue;
}
bool JavaInstance::invokeMethod(const char* methodName, const NPVariant* args, uint32_t count, NPVariant* resultValue)
{
int i;
jvalue *jArgs;
JavaMethod *method = 0;
VOID_TO_NPVARIANT(*resultValue);
MethodList methodList = getClass()->methodsNamed(methodName);
size_t numMethods = methodList.size();
// Try to find a good match for the overloaded method. The
// fundamental problem is that JavaScript doesn have the
// notion of method overloading and Java does. We could
// get a bit more sophisticated and attempt to does some
// type checking as we as checking the number of parameters.
JavaMethod *aMethod;
for (size_t methodIndex = 0; methodIndex < numMethods; methodIndex++) {
aMethod = methodList[methodIndex];
if (aMethod->numParameters() == count) {
method = aMethod;
break;
}
}
if (method == 0) {
LOGW("unable to find an appropiate method\n");
return false;
}
const JavaMethod *jMethod = static_cast<const JavaMethod*>(method);
if (count > 0) {
jArgs = (jvalue *)malloc (count * sizeof(jvalue));
}
else
jArgs = 0;
for (i = 0; i < count; i++) {
JavaParameter* aParameter = jMethod->parameterAt(i);
jArgs[i] = convertNPVariantToJValue(args[i], aParameter->getJNIType(), aParameter->type());
}
jvalue result;
// The following code can be conditionally removed once we have a Tiger update that
// contains the new Java plugin. It is needed for builds prior to Tiger.
{
jobject obj = getLocalRef();
switch (jMethod->JNIReturnType()){
case void_type:
callJNIMethodIDA<void>(obj, jMethod->methodID(obj), jArgs);
break;
case object_type:
result.l = callJNIMethodIDA<jobject>(obj, jMethod->methodID(obj), jArgs);
break;
case boolean_type:
result.z = callJNIMethodIDA<jboolean>(obj, jMethod->methodID(obj), jArgs);
break;
case byte_type:
result.b = callJNIMethodIDA<jbyte>(obj, jMethod->methodID(obj), jArgs);
break;
case char_type:
result.c = callJNIMethodIDA<jchar>(obj, jMethod->methodID(obj), jArgs);
break;
case short_type:
result.s = callJNIMethodIDA<jshort>(obj, jMethod->methodID(obj), jArgs);
break;
case int_type:
result.i = callJNIMethodIDA<jint>(obj, jMethod->methodID(obj), jArgs);
break;
case long_type:
result.j = callJNIMethodIDA<jlong>(obj, jMethod->methodID(obj), jArgs);
break;
case float_type:
result.f = callJNIMethodIDA<jfloat>(obj, jMethod->methodID(obj), jArgs);
break;
case double_type:
result.d = callJNIMethodIDA<jdouble>(obj, jMethod->methodID(obj), jArgs);
break;
case invalid_type:
default:
break;
}
getJNIEnv()->DeleteLocalRef(obj);
}
convertJValueToNPVariant(result, jMethod->JNIReturnType(), jMethod->returnType(), resultValue);
free (jArgs);
return true;
}