void
DataTransfer::MozGetDataAt(JSContext* aCx, const nsAString& aFormat,
uint32_t aIndex,
JS::MutableHandle<JS::Value> aRetval,
nsIPrincipal& aSubjectPrincipal,
mozilla::ErrorResult& aRv)
{
nsCOMPtr<nsIVariant> data;
aRv = GetDataAtInternal(aFormat, aIndex, &aSubjectPrincipal,
getter_AddRefs(data));
if (aRv.Failed()) {
return;
}
if (!data) {
aRetval.setNull();
return;
}
JS::Rooted<JS::Value> result(aCx);
if (!VariantToJsval(aCx, data, aRetval)) {
aRv = NS_ERROR_FAILURE;
return;
}
}
JS::Value
DataTransfer::MozGetDataAt(JSContext* aCx, const nsAString& aFormat,
uint32_t aIndex, mozilla::ErrorResult& aRv)
{
nsCOMPtr<nsIVariant> data;
aRv = MozGetDataAt(aFormat, aIndex, getter_AddRefs(data));
if (aRv.Failed()) {
return JS::UndefinedValue();
}
if (!data) {
return JS::NullValue();
}
JS::Rooted<JS::Value> result(aCx);
JS::Rooted<JSObject*> scope(aCx, GetWrapper());
if (!VariantToJsval(aCx, scope, data, &result)) {
aRv = NS_ERROR_FAILURE;
return JS::UndefinedValue();
}
return result;
}