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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "server.h"
++
++ #include <QDialogButtonBox>
++ #include <QGuiApplication>
++ #include <QHBoxLayout>
++ #include <QLabel>
++ #include <QLineEdit>
++ #include <QLocalSocket>
++ #include <QMessageBox>
++ #include <QPushButton>
++ #include <QRandomGenerator>
++
++ using namespace Qt::StringLiterals;
++
++ static const QString idleStateText = QObject::tr("Press \"Listen\" to start the server");
++
++ Server::Server(QWidget *parent)
++ : QDialog(parent),
++ server(new QLocalServer(this)),
++ hostLineEdit(new QLineEdit(u"fortune"_s)),
++ statusLabel(new QLabel(idleStateText)),
++ listenButton(new QPushButton(tr("Listen"))),
++ stopListeningButton(new QPushButton(tr("Stop Listening")))
++ {
++ setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
++
++ statusLabel->setWordWrap(true);
++
++ stopListeningButton->setDisabled(true);
++
++ fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
++ << tr("You've got to think about tomorrow.")
++ << tr("You will be surprised by a loud noise.")
++ << tr("You will feel hungry again in another hour.")
++ << tr("You might have mail.")
++ << tr("You cannot kill time without injuring eternity.")
++ << tr("Computers are not intelligent. They only think they are.");
++
++ QLabel *hostLabel = new QLabel(tr("Server name:"));
++
++ connect(server, &QLocalServer::newConnection, this, &Server::sendFortune);
++ connect(hostLineEdit, &QLineEdit::textChanged, this, &Server::toggleListenButton);
++ connect(listenButton, &QPushButton::clicked, this, &Server::listenToServer);
++ connect(stopListeningButton, &QPushButton::clicked,this, &Server::stopListening);
++
++ QPushButton *quitButton = new QPushButton(tr("Quit"));
++ quitButton->setAutoDefault(false);
++ connect(quitButton, &QPushButton::clicked, this, &Server::close);
++
++ QDialogButtonBox *buttonBox = new QDialogButtonBox;
++ buttonBox->addButton(listenButton, QDialogButtonBox::ActionRole);
++ buttonBox->addButton(stopListeningButton, QDialogButtonBox::ActionRole);
++ buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
++
++ QGridLayout *mainLayout = new QGridLayout(this);
++ mainLayout->addWidget(hostLabel, 0, 0);
++ mainLayout->addWidget(hostLineEdit, 0, 1);
++ mainLayout->addWidget(statusLabel, 2, 0, 3, 2);
++ mainLayout->addWidget(buttonBox, 10, 0, 2, 2);
++
++ setWindowTitle(QGuiApplication::applicationDisplayName());
++ hostLineEdit->setFocus();
++ }
++
++ void Server::listenToServer()
++ {
++ name = hostLineEdit->text();
++ if (!server->listen(name)) {
++ QMessageBox::critical(this, tr("Local Fortune Server"),
++ tr("Unable to start the server: %1.")
++ .arg(server->errorString()));
++ name.clear();
++ return;
++ }
++ statusLabel->setText(tr("The server is running.\n"
++ "Run the Local Fortune Client example now."));
++ toggleListenButton();
++ }
++
++ void Server::stopListening()
++ {
++ server->close();
++ name.clear();
++ statusLabel->setText(idleStateText);
++ toggleListenButton();
++ }
++
++ void Server::toggleListenButton()
++ {
++ if (server->isListening()) {
++ listenButton->setDisabled(true);
++ stopListeningButton->setEnabled(true);
++ } else {
++ listenButton->setEnabled(!hostLineEdit->text().isEmpty());
++ stopListeningButton->setDisabled(true);
++ }
++ }
++
++ void Server::sendFortune()
++ {
++ QByteArray block;
++ QDataStream out(&block, QIODevice::WriteOnly);
++ out.setVersion(QDataStream::Qt_6_5);
++ const int fortuneIndex = QRandomGenerator::global()->bounded(0, fortunes.size());
++ const QString &message = fortunes.at(fortuneIndex);
++ out << message;
++
++ QLocalSocket *clientConnection = server->nextPendingConnection();
++ connect(clientConnection, &QLocalSocket::disconnected,
++ clientConnection, &QLocalSocket::deleteLater);
++
++ clientConnection->write(block);
++ clientConnection->flush();
++ clientConnection->disconnectFromServer();
++ }