コード例 #1
0
ファイル: JNIBridgeJSC.cpp プロジェクト: mikezit/Webkit_Code
jvalue JavaField::dispatchValueFromInstance(ExecState* exec, const JavaInstance* instance, const char* name, const char* sig, JNIType returnType) const
{
    jobject jinstance = instance->javaInstance();
    jobject fieldJInstance = m_field->m_instance;
    JNIEnv* env = getJNIEnv();
    jvalue result;

    memset(&result, 0, sizeof(jvalue));
    jclass cls = env->GetObjectClass(fieldJInstance);
    if (cls) {
        jmethodID mid = env->GetMethodID(cls, name, sig);
        if (mid) {
            RootObject* rootObject = instance->rootObject();
            if (rootObject && rootObject->nativeHandle()) {
                JSValue exceptionDescription;
                jvalue args[1];

                args[0].l = jinstance;
                dispatchJNICall(exec, rootObject->nativeHandle(), fieldJInstance, false, returnType, mid, args, result, 0, exceptionDescription);
                if (exceptionDescription)
                    throwError(exec, GeneralError, exceptionDescription.toString(exec));
            }
        }
    }
    return result;
}
コード例 #2
0
ファイル: JNIBridgeJSC.cpp プロジェクト: mikezit/Webkit_Code
void JavaField::dispatchSetValueToInstance(ExecState* exec, const JavaInstance* instance, jvalue javaValue, const char* name, const char* sig) const
{
    jobject jinstance = instance->javaInstance();
    jobject fieldJInstance = m_field->m_instance;
    JNIEnv* env = getJNIEnv();

    jclass cls = env->GetObjectClass(fieldJInstance);
    if (cls) {
        jmethodID mid = env->GetMethodID(cls, name, sig);
        if (mid) {
            RootObject* rootObject = instance->rootObject();
            if (rootObject && rootObject->nativeHandle()) {
                JSValue exceptionDescription;
                jvalue args[2];
                jvalue result;

                args[0].l = jinstance;
                args[1] = javaValue;
                dispatchJNICall(exec, rootObject->nativeHandle(), fieldJInstance, false, void_type, mid, args, result, 0, exceptionDescription);
                if (exceptionDescription)
                    throwError(exec, GeneralError, exceptionDescription.toString(exec));
            }
        }
    }
}
コード例 #3
0
ファイル: jni_instance.cpp プロジェクト: acss/owb-mirror
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;
}
コード例 #4
0
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;
}
コード例 #5
0
JSValue JavaInstance::invokeMethod(ExecState* exec, RuntimeMethod* runtimeMethod)
{
    if (!asObject(runtimeMethod)->inherits(&JavaRuntimeMethod::s_info))
        return throwError(exec, createTypeError(exec, "Attempt to invoke non-Java method on Java object."));

    const MethodList& methodList = *runtimeMethod->methods();

    int i;
    int count = exec->argumentCount();
    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().impl()).utf8().data(), jMethod->signature(), m_instance->m_instance);

    Vector<jvalue> jArgs(count);

    for (i = 0; i < count; i++) {
        CString javaClassName = jMethod->parameterAt(i).utf8();
        jArgs[i] = convertValueToJValue(exec, m_rootObject.get(), exec->argument(i), javaTypeFromClassName(javaClassName.data()), javaClassName.data());
        LOG(LiveConnect, "JavaInstance::invokeMethod arg[%d] = %s", i, exec->argument(i).toString(exec).ascii().data());
    }

    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
        jmethodID methodId = getMethodID(obj, jMethod->name().utf8().data(), jMethod->signature());
        handled = dispatchJNICall(exec, rootObject->nativeHandle(), obj, jMethod->isStatic(), jMethod->returnType(), methodId, jArgs.data(), result, callingURL, exceptionDescription);
        if (exceptionDescription) {
            throwError(exec, createError(exec, exceptionDescription.toString(exec)));
            return jsUndefined();
        }
    }

// This is a deprecated code path which should not be required on Android.
// Remove this guard once Bug 39476 is fixed.
#if PLATFORM(ANDROID) || defined(BUILDING_ON_TIGER)
    if (!handled)
        result = callJNIMethod(m_instance->m_instance, jMethod->returnType(), jMethod->name().utf8().data(), jMethod->signature(), jArgs.data());
#endif

    switch (jMethod->returnType()) {
    case JavaTypeVoid:
        {
            resultValue = jsUndefined();
        }
        break;

    case JavaTypeObject:
        {
            if (result.l) {
                // FIXME: JavaTypeArray return type is handled below, can we actually get an array here?
                const char* arrayType = jMethod->returnTypeClassName();
                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).utf8(), "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 JavaTypeBoolean:
        {
            resultValue = jsBoolean(result.z);
        }
        break;

    case JavaTypeByte:
        {
            resultValue = jsNumber(result.b);
        }
        break;

    case JavaTypeChar:
        {
            resultValue = jsNumber(result.c);
        }
        break;

    case JavaTypeShort:
        {
            resultValue = jsNumber(result.s);
        }
        break;

    case JavaTypeInt:
        {
            resultValue = jsNumber(result.i);
        }
        break;

    case JavaTypeLong:
        {
            resultValue = jsNumber(result.j);
        }
        break;

    case JavaTypeFloat:
        {
            resultValue = jsNumber(result.f);
        }
        break;

    case JavaTypeDouble:
        {
            resultValue = jsNumber(result.d);
        }
        break;

    case JavaTypeArray:
        {
            const char* arrayType = jMethod->returnTypeClassName();
            ASSERT(arrayType[0] == '[');
            resultValue = JavaArray::convertJObjectToArray(exec, result.l, arrayType, rootObject);
        }
        break;

    case JavaTypeInvalid:
        {
            resultValue = jsUndefined();
        }
        break;
    }

    return resultValue;
}