Пример #1
0
jvalue convertValueToJValue(ExecState* exec, RootObject* rootObject, JSValue value, JavaType javaType, const char* javaClassName)
{
    JSLock lock(SilenceAssertionsOnly);

    jvalue result;
    memset(&result, 0, sizeof(jvalue));

    switch (javaType) {
    case JavaTypeArray:
    case JavaTypeObject:
        {
            // FIXME: JavaJSObject::convertValueToJObject functionality is almost exactly the same,
            // these functions should use common code.

            if (value.isObject()) {
                JSObject* object = asObject(value);
                if (object->inherits(&JavaRuntimeObject::s_info)) {
                    // Unwrap a Java instance.
                    JavaRuntimeObject* runtimeObject = static_cast<JavaRuntimeObject*>(object);
                    JavaInstance* instance = runtimeObject->getInternalJavaInstance();
                    if (instance)
                        result.l = instance->javaInstance();
                } else if (object->classInfo() == &RuntimeArray::s_info) {
                    // Input is a JavaScript Array that was originally created from a Java Array
                    RuntimeArray* imp = static_cast<RuntimeArray*>(object);
                    JavaArray* array = static_cast<JavaArray*>(imp->getConcreteArray());
                    result.l = array->javaArray();
                } else if (object->classInfo() == &JSArray::s_info) {
                    // Input is a Javascript Array. We need to create it to a Java Array.
                    result.l = convertArrayInstanceToJavaArray(exec, asArray(value), javaClassName);
                } else if ((!result.l && (!strcmp(javaClassName, "java.lang.Object")))
                           || (!strcmp(javaClassName, "netscape.javascript.JSObject"))) {
                    // Wrap objects in JSObject instances.
                    JNIEnv* env = getJNIEnv();
                    jclass jsObjectClass = env->FindClass("sun/plugin/javascript/webkit/JSObject");
                    jmethodID constructorID = env->GetMethodID(jsObjectClass, "<init>", "(J)V");
                    if (constructorID) {
                        jlong nativeHandle = ptr_to_jlong(object);
                        rootObject->gcProtect(object);
                        result.l = env->NewObject(jsObjectClass, constructorID, nativeHandle);
                    }
                }
            }

            // Create an appropriate Java object if target type is java.lang.Object.
            if (!result.l && !strcmp(javaClassName, "java.lang.Object")) {
                if (value.isString()) {
                    UString stringValue = asString(value)->value(exec);
                    JNIEnv* env = getJNIEnv();
                    jobject javaString = env->functions->NewString(env, (const jchar*)stringValue.characters(), stringValue.length());
                    result.l = javaString;
                } else if (value.isNumber()) {
                    double doubleValue = value.asNumber();
                    JNIEnv* env = getJNIEnv();
                    jclass clazz = env->FindClass("java/lang/Double");
                    jmethodID constructor = env->GetMethodID(clazz, "<init>", "(D)V");
                    jobject javaDouble = env->functions->NewObject(env, clazz, constructor, doubleValue);
                    result.l = javaDouble;
                } else if (value.isBoolean()) {
                    bool boolValue = value.asBoolean();
                    JNIEnv* env = getJNIEnv();
                    jclass clazz = env->FindClass("java/lang/Boolean");
                    jmethodID constructor = env->GetMethodID(clazz, "<init>", "(Z)V");
                    jobject javaBoolean = env->functions->NewObject(env, clazz, constructor, boolValue);
                    result.l = javaBoolean;
                } else if (value.isUndefined()) {
                    UString stringValue = "undefined";
                    JNIEnv* env = getJNIEnv();
                    jobject javaString = env->functions->NewString(env, (const jchar*)stringValue.characters(), stringValue.length());
                    result.l = javaString;
                }
            }

            // Convert value to a string if the target type is a java.lang.String, and we're not
            // converting from a null.
            if (!result.l && !strcmp(javaClassName, "java.lang.String")) {
                if (!value.isNull()) {
                    UString stringValue = value.toString(exec);
                    JNIEnv* env = getJNIEnv();
                    jobject javaString = env->functions->NewString(env, (const jchar*)stringValue.characters(), stringValue.length());
                    result.l = javaString;
                }
            }
        }
        break;

    case JavaTypeBoolean:
        {
            result.z = (jboolean)value.toNumber(exec);
        }
        break;

    case JavaTypeByte:
        {
            result.b = (jbyte)value.toNumber(exec);
        }
        break;

    case JavaTypeChar:
        {
            result.c = (jchar)value.toNumber(exec);
        }
        break;

    case JavaTypeShort:
        {
            result.s = (jshort)value.toNumber(exec);
        }
        break;

    case JavaTypeInt:
        {
            result.i = (jint)value.toNumber(exec);
        }
        break;

    case JavaTypeLong:
        {
            result.j = (jlong)value.toNumber(exec);
        }
        break;

    case JavaTypeFloat:
        {
            result.f = (jfloat)value.toNumber(exec);
        }
        break;

    case JavaTypeDouble:
        {
            result.d = (jdouble)value.toNumber(exec);
        }
        break;

    case JavaTypeInvalid:
    case JavaTypeVoid:
        break;
    }
    return result;
}
jvalue convertValueToJValue(ExecState* exec, JSValue value, JNIType jniType, const char* javaClassName)
{
    JSLock lock(SilenceAssertionsOnly);

    jvalue result;

    switch (jniType) {
    case array_type:
    case object_type:
        {
            result.l = (jobject)0;

            // First see if we have a Java instance.
            if (value.isObject()) {
                JSObject* objectImp = asObject(value);
                if (objectImp->classInfo() == &RuntimeObjectImp::s_info) {
                    RuntimeObjectImp* imp = static_cast<RuntimeObjectImp*>(objectImp);
                    JavaInstance* instance = static_cast<JavaInstance*>(imp->getInternalInstance());
                    if (instance)
                        result.l = instance->javaInstance();
                } else if (objectImp->classInfo() == &RuntimeArray::s_info) {
                    // Input is a JavaScript Array that was originally created from a Java Array
                    RuntimeArray* imp = static_cast<RuntimeArray*>(objectImp);
                    JavaArray* array = static_cast<JavaArray*>(imp->getConcreteArray());
                    result.l = array->javaArray();
                } else if (objectImp->classInfo() == &JSArray::info) {
                    // Input is a Javascript Array. We need to create it to a Java Array.
                    result.l = convertArrayInstanceToJavaArray(exec, asArray(value), javaClassName);
                }
            }

            // Now convert value to a string if the target type is a java.lang.string, and we're not
            // converting from a Null.
            if (!result.l && !strcmp(javaClassName, "java.lang.String")) {
#ifdef CONVERT_NULL_TO_EMPTY_STRING
                if (value->isNull()) {
                    JNIEnv* env = getJNIEnv();
                    jchar buf[2];
                    jobject javaString = env->functions->NewString(env, buf, 0);
                    result.l = javaString;
                } else
#else
                if (!value.isNull())
#endif
                {
                    UString stringValue = value.toString(exec);
                    JNIEnv* env = getJNIEnv();
                    jobject javaString = env->functions->NewString(env, (const jchar *)stringValue.data(), stringValue.size());
                    result.l = javaString;
                }
            } else if (!result.l)
                // ANDROID
                memset(&result, 0, sizeof(jvalue)); // Handle it the same as a void case
        }
        break;

    case boolean_type:
        {
            result.z = (jboolean)value.toNumber(exec);
        }
        break;

    case byte_type:
        {
            result.b = (jbyte)value.toNumber(exec);
        }
        break;

    case char_type:
        {
            result.c = (jchar)value.toNumber(exec);
        }
        break;

    case short_type:
        {
            result.s = (jshort)value.toNumber(exec);
        }
        break;

    case int_type:
        {
            result.i = (jint)value.toNumber(exec);
        }
        break;

    case long_type:
        {
            result.j = (jlong)value.toNumber(exec);
        }
        break;

    case float_type:
        {
            result.f = (jfloat)value.toNumber(exec);
        }
        break;

    case double_type:
        {
            result.d = (jdouble)value.toNumber(exec);
        }
        break;

        break;

    case invalid_type:
    default:
    case void_type:
        {
            // ANDROID
            memset(&result, 0, sizeof(jvalue));
        }
        break;
    }
    return result;
}