void V8MessageEvent::initMessageEventMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
{
MessageEvent* event = V8MessageEvent::toNative(info.Holder());
TOSTRING_VOID(V8StringResource<>, typeArg, info[0]);
TONATIVE_VOID(bool, canBubbleArg, info[1]->BooleanValue());
TONATIVE_VOID(bool, cancelableArg, info[2]->BooleanValue());
v8::Handle<v8::Value> dataArg = info[3];
TOSTRING_VOID(V8StringResource<>, originArg, info[4]);
TOSTRING_VOID(V8StringResource<>, lastEventIdArg, info[5]);
LocalDOMWindow* sourceArg = toDOMWindow(info[6], info.GetIsolate());
OwnPtr<MessagePortArray> portArray;
const int portArrayIndex = 7;
if (!isUndefinedOrNull(info[portArrayIndex])) {
portArray = adoptPtr(new MessagePortArray);
bool success = false;
*portArray = toRefPtrNativeArray<MessagePort, V8MessagePort>(info[portArrayIndex], portArrayIndex + 1, info.GetIsolate(), &success);
if (!success)
return;
}
event->initMessageEvent(typeArg, canBubbleArg, cancelableArg, originArg, lastEventIdArg, sourceArg, portArray.release());
if (!dataArg.IsEmpty()) {
V8HiddenValue::setHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::data(info.GetIsolate()), dataArg);
if (DOMWrapperWorld::current(info.GetIsolate()).isIsolatedWorld())
event->setSerializedData(SerializedScriptValue::createAndSwallowExceptions(dataArg, info.GetIsolate()));
}
}
void V8MessageEvent::dataAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
{
MessageEvent* event = V8MessageEvent::toNative(info.Holder());
v8::Handle<v8::Value> result;
switch (event->dataType()) {
case MessageEvent::DataTypeScriptValue: {
result = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::data(info.GetIsolate()));
if (result.IsEmpty()) {
if (!event->dataAsSerializedScriptValue()) {
// If we're in an isolated world and the event was created in the main world,
// we need to find the 'data' property on the main world wrapper and clone it.
v8::Local<v8::Value> mainWorldData = V8HiddenValue::getHiddenValueFromMainWorldWrapper(info.GetIsolate(), event, V8HiddenValue::data(info.GetIsolate()));
if (!mainWorldData.IsEmpty())
event->setSerializedData(SerializedScriptValue::createAndSwallowExceptions(mainWorldData, info.GetIsolate()));
}
if (event->dataAsSerializedScriptValue())
result = event->dataAsSerializedScriptValue()->deserialize(info.GetIsolate());
else
result = v8::Null(info.GetIsolate());
}
break;
}
case MessageEvent::DataTypeSerializedScriptValue:
if (SerializedScriptValue* serializedValue = event->dataAsSerializedScriptValue()) {
MessagePortArray ports = event->ports();
result = serializedValue->deserialize(info.GetIsolate(), &ports);
} else {
result = v8::Null(info.GetIsolate());
}
break;
case MessageEvent::DataTypeString: {
result = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::stringData(info.GetIsolate()));
if (result.IsEmpty()) {
String stringValue = event->dataAsString();
result = v8String(info.GetIsolate(), stringValue);
}
break;
}
case MessageEvent::DataTypeBlob:
result = toV8(event->dataAsBlob(), info.Holder(), info.GetIsolate());
break;
case MessageEvent::DataTypeArrayBuffer:
result = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::arrayBufferData(info.GetIsolate()));
if (result.IsEmpty())
result = toV8(event->dataAsArrayBuffer(), info.Holder(), info.GetIsolate());
break;
}
// Overwrite the data attribute so it returns the cached result in future invocations.
// This custom getter handler will not be called again.
v8::PropertyAttribute dataAttr = static_cast<v8::PropertyAttribute>(v8::DontDelete | v8::ReadOnly);
info.Holder()->ForceSet(v8AtomicString(info.GetIsolate(), "data"), result, dataAttr);
v8SetReturnValue(info, result);
}
