fd1405e61b
The local version of the fortune server and clients were not using the transaction paradigm yet. This patches fixes it and makes the example in line with the network version. Pick-to: 6.6 6.5 Change-Id: Ieb68f67e2921f46acd682f81dfa5dc5b040c88f5 Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
119 lines
4.0 KiB
C++
119 lines
4.0 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "server.h"
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#include <QDialogButtonBox>
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#include <QGuiApplication>
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QLineEdit>
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#include <QLocalSocket>
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#include <QMessageBox>
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#include <QPushButton>
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#include <QRandomGenerator>
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using namespace Qt::StringLiterals;
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static const QString idleStateText = QObject::tr("Press \"Listen\" to start the server");
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Server::Server(QWidget *parent)
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: QDialog(parent),
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server(new QLocalServer(this)),
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hostLineEdit(new QLineEdit(u"fortune"_s)),
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statusLabel(new QLabel(idleStateText)),
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listenButton(new QPushButton(tr("Listen"))),
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stopListeningButton(new QPushButton(tr("Stop Listening")))
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{
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setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
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statusLabel->setWordWrap(true);
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stopListeningButton->setDisabled(true);
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fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
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<< tr("You've got to think about tomorrow.")
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<< tr("You will be surprised by a loud noise.")
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<< tr("You will feel hungry again in another hour.")
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<< tr("You might have mail.")
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<< tr("You cannot kill time without injuring eternity.")
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<< tr("Computers are not intelligent. They only think they are.");
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QLabel *hostLabel = new QLabel(tr("Server name:"));
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connect(server, &QLocalServer::newConnection, this, &Server::sendFortune);
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connect(hostLineEdit, &QLineEdit::textChanged, this, &Server::toggleListenButton);
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connect(listenButton, &QPushButton::clicked, this, &Server::listenToServer);
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connect(stopListeningButton, &QPushButton::clicked,this, &Server::stopListening);
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QPushButton *quitButton = new QPushButton(tr("Quit"));
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quitButton->setAutoDefault(false);
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connect(quitButton, &QPushButton::clicked, this, &Server::close);
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QDialogButtonBox *buttonBox = new QDialogButtonBox;
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buttonBox->addButton(listenButton, QDialogButtonBox::ActionRole);
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buttonBox->addButton(stopListeningButton, QDialogButtonBox::ActionRole);
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buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
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QGridLayout *mainLayout = new QGridLayout(this);
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mainLayout->addWidget(hostLabel, 0, 0);
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mainLayout->addWidget(hostLineEdit, 0, 1);
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mainLayout->addWidget(statusLabel, 2, 0, 3, 2);
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mainLayout->addWidget(buttonBox, 10, 0, 2, 2);
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setWindowTitle(QGuiApplication::applicationDisplayName());
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hostLineEdit->setFocus();
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}
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void Server::listenToServer()
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{
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name = hostLineEdit->text();
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if (!server->listen(name)) {
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QMessageBox::critical(this, tr("Local Fortune Server"),
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tr("Unable to start the server: %1.")
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.arg(server->errorString()));
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name.clear();
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return;
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}
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statusLabel->setText(tr("The server is running.\n"
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"Run the Local Fortune Client example now."));
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toggleListenButton();
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}
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void Server::stopListening()
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{
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server->close();
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name.clear();
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statusLabel->setText(idleStateText);
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toggleListenButton();
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}
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void Server::toggleListenButton()
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{
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if (server->isListening()) {
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listenButton->setDisabled(true);
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stopListeningButton->setEnabled(true);
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} else {
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listenButton->setEnabled(!hostLineEdit->text().isEmpty());
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stopListeningButton->setDisabled(true);
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}
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}
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void Server::sendFortune()
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{
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QByteArray block;
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QDataStream out(&block, QIODevice::WriteOnly);
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out.setVersion(QDataStream::Qt_6_5);
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const int fortuneIndex = QRandomGenerator::global()->bounded(0, fortunes.size());
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const QString &message = fortunes.at(fortuneIndex);
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out << message;
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QLocalSocket *clientConnection = server->nextPendingConnection();
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connect(clientConnection, &QLocalSocket::disconnected,
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clientConnection, &QLocalSocket::deleteLater);
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clientConnection->write(block);
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clientConnection->flush();
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clientConnection->disconnectFromServer();
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}
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