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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "client.h"
++
++ #include <QDialogButtonBox>
++ #include <QGridLayout>
++ #include <QGuiApplication>
++ #include <QMessageBox>
++ #include <QTimer>
++
++ using namespace Qt::StringLiterals;
++
++ Client::Client(QWidget *parent)
++ : QDialog(parent),
++ hostLineEdit(new QLineEdit(u"fortune"_s)),
++ getFortuneButton(new QPushButton(tr("Get Fortune"))),
++ statusLabel(new QLabel(tr("This examples requires that you run the "
++ "Local Fortune Server example as well."))),
++ socket(new QLocalSocket(this))
++ {
++ setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
++ QLabel *hostLabel = new QLabel(tr("&Server name:"));
++ hostLabel->setBuddy(hostLineEdit);
++
++ statusLabel->setWordWrap(true);
++
++ getFortuneButton->setDefault(true);
++ QPushButton *quitButton = new QPushButton(tr("Quit"));
++
++ QDialogButtonBox *buttonBox = new QDialogButtonBox;
++ buttonBox->addButton(getFortuneButton, QDialogButtonBox::ActionRole);
++ buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
++
++ in.setDevice(socket);
++ in.setVersion(QDataStream::Qt_6_0);
++
++ connect(hostLineEdit, &QLineEdit::textChanged,
++ this, &Client::enableGetFortuneButton);
++ connect(getFortuneButton, &QPushButton::clicked,
++ this, &Client::requestNewFortune);
++ connect(quitButton, &QPushButton::clicked, this, &Client::close);
++ connect(socket, &QLocalSocket::readyRead, this, &Client::readFortune);
++ connect(socket, &QLocalSocket::errorOccurred, this, &Client::displayError);
++
++ QGridLayout *mainLayout = new QGridLayout(this);
++ mainLayout->addWidget(hostLabel, 0, 0);
++ mainLayout->addWidget(hostLineEdit, 0, 1);
++ mainLayout->addWidget(statusLabel, 2, 0, 1, 2);
++ mainLayout->addWidget(buttonBox, 3, 0, 1, 2);
++
++ setWindowTitle(QGuiApplication::applicationDisplayName());
++ hostLineEdit->setFocus();
++ }
++
++ void Client::requestNewFortune()
++ {
++ getFortuneButton->setEnabled(false);
++ blockSize = 0;
++ socket->abort();
++ socket->connectToServer(hostLineEdit->text());
++ }
++
++ void Client::readFortune()
++ {
++ in.startTransaction();
++
++ QString nextFortune;
++ in >> nextFortune;
++
++ if (!in.commitTransaction())
++ return;
++
++ if (nextFortune == currentFortune) {
++ QTimer::singleShot(0, this, &Client::requestNewFortune);
++ return;
++ }
++
++ currentFortune = nextFortune;
++ statusLabel->setText(currentFortune);
++ getFortuneButton->setEnabled(true);
++ }
++
++ void Client::displayError(QLocalSocket::LocalSocketError socketError)
++ {
++ switch (socketError) {
++ case QLocalSocket::ServerNotFoundError:
++ QMessageBox::information(this, tr("Local Fortune Client"),
++ tr("The host was not found. Please make sure "
++ "that the server is running and that the "
++ "server name is correct."));
++ break;
++ case QLocalSocket::ConnectionRefusedError:
++ QMessageBox::information(this, tr("Local Fortune Client"),
++ tr("The connection was refused by the peer. "
++ "Make sure the fortune server is running, "
++ "and check that the server name "
++ "is correct."));
++ break;
++ case QLocalSocket::PeerClosedError:
++ break;
++ default:
++ QMessageBox::information(this, tr("Local Fortune Client"),
++ tr("The following error occurred: %1.")
++ .arg(socket->errorString()));
++ }
++
++ getFortuneButton->setEnabled(true);
++ }
++
++ void Client::enableGetFortuneButton()
++ {
++ getFortuneButton->setEnabled(!hostLineEdit->text().isEmpty());
++ }