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+/****************************************************************************
+**
+** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtWebChannel module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwebchannel.h"
+
+#include <QApplication>
+#include <QDialog>
+#include <QVariantMap>
+#include <QDesktopServices>
+#include <QUrl>
+#include <QDebug>
+
+#include <QtWebSockets/QWebSocketServer>
+
+#include "websocketclientwrapper.h"
+#include "websockettransport.h"
+
+#include "ui_dialog.h"
+
+/*!
+ An instance of this class gets published over the WebChannel and is then accessible to HTML clients.
+*/
+class Dialog : public QObject
+{
+ Q_OBJECT
+
+public:
+ explicit Dialog(QObject *parent = 0)
+ : QObject(parent)
+ {
+ ui.setupUi(&dialog);
+ dialog.show();
+
+ connect(ui.send, SIGNAL(clicked()), SLOT(clicked()));
+ }
+
+ void displayMessage(const QString &message)
+ {
+ ui.output->appendPlainText(message);
+ }
+
+signals:
+ /*!
+ This signal is emitted from the C++ side and the text displayed on the HTML client side.
+ */
+ void sendText(const QString &text);
+
+public slots:
+ /*!
+ This slot is invoked from the HTML client side and the text displayed on the server side.
+ */
+ void receiveText(const QString &text)
+ {
+ displayMessage(tr("Received message: %1").arg(text));
+ }
+
+private slots:
+ /*!
+ Note that this slot is private and thus not accessible to HTML clients.
+ */
+ void clicked()
+ {
+ const QString text = ui.input->text();
+
+ if (text.isEmpty()) {
+ return;
+ }
+
+ emit sendText(text);
+ displayMessage(tr("Sent message: %1").arg(text));
+
+ ui.input->clear();
+ }
+
+private:
+ QDialog dialog;
+ Ui::Dialog ui;
+};
+
+int main(int argc, char** argv)
+{
+ QApplication app(argc, argv);
+
+ // setup the QWebSocketServer
+ QWebSocketServer server(QStringLiteral("QWebChannel Standalone Example Server"), QWebSocketServer::NonSecureMode);
+ if (!server.listen(QHostAddress::LocalHost, 12345)) {
+ qFatal("Failed to open web socket server.");
+ return 1;
+ }
+
+ // wrap WebSocket clients in QWebChannelAbstractTransport objects
+ WebSocketClientWrapper clientWrapper(&server);
+
+ // setup the channel
+ QWebChannel channel;
+ QObject::connect(&clientWrapper, &WebSocketClientWrapper::clientConnected,
+ &channel, &QWebChannel::connectTo);
+
+ // setup the dialog and publish it to the QWebChannel
+ Dialog dialog;
+ channel.registerObject(QStringLiteral("dialog"), &dialog);
+
+ // open a browser window with the client HTML page
+ QUrl url = QUrl::fromLocalFile(BUILD_DIR "/index.html");
+ url.setQuery(QStringLiteral("webChannelBaseUrl=") + server.serverUrl().toString());
+ QDesktopServices::openUrl(url);
+
+ dialog.displayMessage(QObject::tr("Initialization complete, opening browser at %1.").arg(url.toDisplayString()));
+
+ return app.exec();
+}
+
+#include "main.moc"