1bd40b3e94
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: 6.5 Change-Id: Ieb68f67e2921f46acd682f81dfa5dc5b040c88f5 Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de> (cherry picked from commit fd1405e61b9939e2630c751367413e07fdc76408) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
115 lines
3.8 KiB
C++
115 lines
3.8 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 "client.h"
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#include <QDialogButtonBox>
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#include <QGridLayout>
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#include <QGuiApplication>
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#include <QMessageBox>
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#include <QTimer>
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using namespace Qt::StringLiterals;
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Client::Client(QWidget *parent)
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: QDialog(parent),
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hostLineEdit(new QLineEdit(u"fortune"_s)),
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getFortuneButton(new QPushButton(tr("Get Fortune"))),
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statusLabel(new QLabel(tr("This examples requires that you run the "
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"Local Fortune Server example as well."))),
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socket(new QLocalSocket(this))
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{
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setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
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QLabel *hostLabel = new QLabel(tr("&Server name:"));
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hostLabel->setBuddy(hostLineEdit);
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statusLabel->setWordWrap(true);
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getFortuneButton->setDefault(true);
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QPushButton *quitButton = new QPushButton(tr("Quit"));
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QDialogButtonBox *buttonBox = new QDialogButtonBox;
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buttonBox->addButton(getFortuneButton, QDialogButtonBox::ActionRole);
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buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
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in.setDevice(socket);
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in.setVersion(QDataStream::Qt_6_0);
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connect(hostLineEdit, &QLineEdit::textChanged,
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this, &Client::enableGetFortuneButton);
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connect(getFortuneButton, &QPushButton::clicked,
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this, &Client::requestNewFortune);
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connect(quitButton, &QPushButton::clicked, this, &Client::close);
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connect(socket, &QLocalSocket::readyRead, this, &Client::readFortune);
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connect(socket, &QLocalSocket::errorOccurred, this, &Client::displayError);
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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, 1, 2);
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mainLayout->addWidget(buttonBox, 3, 0, 1, 2);
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setWindowTitle(QGuiApplication::applicationDisplayName());
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hostLineEdit->setFocus();
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}
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void Client::requestNewFortune()
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{
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getFortuneButton->setEnabled(false);
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blockSize = 0;
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socket->abort();
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socket->connectToServer(hostLineEdit->text());
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}
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void Client::readFortune()
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{
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in.startTransaction();
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QString nextFortune;
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in >> nextFortune;
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if (!in.commitTransaction())
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return;
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if (nextFortune == currentFortune) {
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QTimer::singleShot(0, this, &Client::requestNewFortune);
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return;
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}
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currentFortune = nextFortune;
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statusLabel->setText(currentFortune);
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getFortuneButton->setEnabled(true);
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}
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void Client::displayError(QLocalSocket::LocalSocketError socketError)
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{
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switch (socketError) {
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case QLocalSocket::ServerNotFoundError:
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QMessageBox::information(this, tr("Local Fortune Client"),
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tr("The host was not found. Please make sure "
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"that the server is running and that the "
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"server name is correct."));
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break;
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case QLocalSocket::ConnectionRefusedError:
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QMessageBox::information(this, tr("Local Fortune Client"),
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tr("The connection was refused by the peer. "
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"Make sure the fortune server is running, "
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"and check that the server name "
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"is correct."));
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break;
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case QLocalSocket::PeerClosedError:
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break;
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default:
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QMessageBox::information(this, tr("Local Fortune Client"),
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tr("The following error occurred: %1.")
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.arg(socket->errorString()));
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}
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getFortuneButton->setEnabled(true);
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}
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void Client::enableGetFortuneButton()
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{
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getFortuneButton->setEnabled(!hostLineEdit->text().isEmpty());
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}
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