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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();
}