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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <QLocalServer>
++ #include <QLocalSocket>
++ #include <QTcpServer>
++ #include <QTcpSocket>
++
++ #include <QCommandLineOption>
++ #include <QCommandLineParser>
++ #include <QCoreApplication>
++ #include <QDebug>
++ #include <QStringList>
++ #include <QTimer>
++
++ #include <memory>
++
++ using namespace Qt::StringLiterals;
++
++ template <class Server>
++ void sendFiles(Server &server, const QStringList &files)
++ {
++ if (auto *socket = server.nextPendingConnection()) {
++ for (const auto &f : files)
++ socket->write(f.toUtf8() + "\r\n");
++ socket->flush();
++ socket->close();
++ QTimer::singleShot(0, QCoreApplication::quit);
++ }
++ }
++
++ class LocalServer : public QObject
++ {
++ public:
++ explicit LocalServer(const QString &serverName, QStringList files,
++ QObject *parent = nullptr) : QObject(parent), m_files(std::move(files))
++ {
++ connect(&m_server, &QLocalServer::newConnection, this, &LocalServer::handleNewConnection);
++ m_server.listen(serverName);
++ qInfo() << "(Local Socket) Listening on" << serverName;
++ }
++
++ private Q_SLOTS:
++ void handleNewConnection()
++ {
++ qInfo("%s", Q_FUNC_INFO);
++ sendFiles(m_server, m_files);
++ }
++
++ private:
++ QLocalServer m_server;
++ QStringList m_files;
++ };
++
++ class TcpServer : public QObject
++ {
++ public:
++ explicit TcpServer(quint16 port, QStringList files,
++ QObject *parent = nullptr) : QObject(parent), m_files(std::move(files))
++ {
++ connect(&m_server, &QTcpServer::newConnection, this, &TcpServer::handleNewConnection);
++ m_server.listen(QHostAddress::LocalHost, port);
++ qInfo() << "(TCP) Listening on " << m_server.serverPort();
++ }
++
++ private Q_SLOTS:
++ void handleNewConnection()
++ {
++ qInfo("%s", Q_FUNC_INFO);
++ sendFiles(m_server, m_files);
++ }
++
++ private:
++ QTcpServer m_server;
++ QStringList m_files;
++ };
++
++ static constexpr auto description = R"(Qt Widgets Designer test server
++
++ Pass some .ui files and then launch Qt Widgets Designer test server
++ with the respective client option.
++ )"_L1;
++
++ int main(int argc, char *argv[])
++ {
++ QCoreApplication app(argc, argv);
++ QCommandLineParser parser;
++ QCoreApplication::setApplicationVersion(QLatin1StringView(qVersion()));
++ parser.setApplicationDescription(description);
++ parser.addHelpOption();
++ parser.addVersionOption();
++ const QCommandLineOption serverNameOption(u"name"_s, u"Local socket server_name"_s,
++ u"server_name"_s, u"test"_s);
++ parser.addOption(serverNameOption);
++ const QCommandLineOption tcpPortOption(u"port"_s, u"TCP Server port"_s, u"port"_s);
++ parser.addOption(tcpPortOption);
++ parser.addPositionalArgument(u"file(s)"_s, u".ui Files to load"_s);
++ parser.process(app);
++
++ QStringList files = parser.positionalArguments();
++ if (files.isEmpty())
++ parser.showHelp(0);
++
++ std::unique_ptr<QObject> server;
++ if (parser.isSet(tcpPortOption))
++ server= std::make_unique<TcpServer>(parser.value(tcpPortOption).toInt(), files);
++ else
++ server= std::make_unique<LocalServer>(parser.value(serverNameOption), files);
++
++ return QCoreApplication::exec();
++ }