// fixed bug QTBUG-113143
static inline QDBusMessage xdgDesktopPortalOpenFile(const QUrl &url)
{
    // DBus signature:
    // OpenFile (IN   s      parent_window,
    //           IN   h      fd,
    //           IN   a{sv}  options,
    //           OUT  o      handle)
    // Options:
    // handle_token (s) -  A string that will be used as the last element of the @handle.
    // writable (b) - Whether to allow the chosen application to write to the file.

    const int fd = open(QFile::encodeName(url.toLocalFile()), O_PATH|O_CLOEXEC);
    // const int fd = qt_safe_open(QFile::encodeName(url.toLocalFile()), O_PATH);
    if (fd != -1) {
        QDBusMessage message = QDBusMessage::createMethodCall("org.freedesktop.portal.Desktop",
                                                              "/org/freedesktop/portal/desktop",
                                                              "org.freedesktop.portal.OpenURI",
                                                              "OpenFile");

        QDBusUnixFileDescriptor descriptor;
        descriptor.giveFileDescriptor(fd);

        // don't set option!
        const QVariantMap options;// = {{"writable"_L1, true}};

        // FIXME parent_window_id
        message << QString() << QVariant::fromValue(descriptor) << options;

        return QDBusConnection::sessionBus().call(message);
    }
    return QDBusMessage::createError(QDBusError::InternalError, qt_error_string());
}