diff options
author | Bernd Lamecker <bernd.lamecker@basyskom.com> | 2014-09-17 15:30:36 +0200 |
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committer | Milian Wolff <milian.wolff@kdab.com> | 2014-10-10 15:34:27 +0200 |
commit | e9ec067e628564e0b065c625dcd7e695857706ac (patch) | |
tree | 70c63561996dd16f135eeb61b174b6994291d0e5 /examples/webchannel/chatserver-cpp | |
parent | feb51b94457691edbc58a34a9ddaf8b20c316820 (diff) | |
download | qtwebchannel-e9ec067e628564e0b065c625dcd7e695857706ac.tar.gz |
Added some more examples
Implemented a C++ Server, providing a chatservice through a simple
QObject using QWebChannel and also both a QML and HTML Client to
interact with the server.
The examples show how to use properties, signals and methods,
separated in server and clients.
Change-Id: I20c84c2104d0bb599ead1771aad499e59657f83e
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>
Diffstat (limited to 'examples/webchannel/chatserver-cpp')
-rw-r--r-- | examples/webchannel/chatserver-cpp/chatserver-cpp.pro | 18 | ||||
-rw-r--r-- | examples/webchannel/chatserver-cpp/chatserver.cpp | 124 | ||||
-rw-r--r-- | examples/webchannel/chatserver-cpp/chatserver.h | 88 | ||||
-rw-r--r-- | examples/webchannel/chatserver-cpp/main.cpp | 71 |
4 files changed, 301 insertions, 0 deletions
diff --git a/examples/webchannel/chatserver-cpp/chatserver-cpp.pro b/examples/webchannel/chatserver-cpp/chatserver-cpp.pro new file mode 100644 index 0000000..ce6a3f7 --- /dev/null +++ b/examples/webchannel/chatserver-cpp/chatserver-cpp.pro @@ -0,0 +1,18 @@ +TARGET = chatserver + +TEMPLATE = app + +QT += core websockets webchannel +QT -= gui + +CONFIG += console + +SOURCES += main.cpp \ + chatserver.cpp \ + ../shared/websocketclientwrapper.cpp \ + ../shared/websockettransport.cpp + +HEADERS += \ + chatserver.h \ + ../shared/websocketclientwrapper.h \ + ../shared/websockettransport.h diff --git a/examples/webchannel/chatserver-cpp/chatserver.cpp b/examples/webchannel/chatserver-cpp/chatserver.cpp new file mode 100644 index 0000000..4663549 --- /dev/null +++ b/examples/webchannel/chatserver-cpp/chatserver.cpp @@ -0,0 +1,124 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "chatserver.h" + +#include <QtCore/QDebug> +#include <QTimer> +#include <QTime> + +QT_BEGIN_NAMESPACE + +ChatServer::ChatServer(QObject *parent) + : QObject(parent) +{ + QTimer* t = new QTimer(this); + connect(t, SIGNAL(timeout()), this, SLOT(sendKeepAlive())); + t->start(10000); + + m_keepAliveCheckTimer = new QTimer(this); + m_keepAliveCheckTimer->setSingleShot(true); + m_keepAliveCheckTimer->setInterval(2000); + connect(m_keepAliveCheckTimer, SIGNAL(timeout()), this, SLOT(checkKeepAliveResponses())); +} + +ChatServer::~ChatServer() +{} + + +bool ChatServer::login(const QString& userName) +{ + //stop keepAliveCheck, when a new user logged in + if (m_keepAliveCheckTimer->isActive()) { + m_keepAliveCheckTimer->stop(); + m_stillAliveUsers.clear(); + } + + if (m_userList.contains(userName)) { + return false; + } + + qDebug() << "User logged in:" << userName; + m_userList.append(userName); + m_userList.sort(); + emit userListChanged(); + emit userCountChanged(); + return true; +} + +bool ChatServer::logout(const QString& userName) +{ + if (!m_userList.contains(userName)) { + return false; + } else { + m_userList.removeAt(m_userList.indexOf(userName)); + emit userListChanged(); + emit userCountChanged(); + return true; + } +} + +bool ChatServer::sendMessage(const QString& user, const QString& msg) +{ + if (m_userList.contains(user)) { + emit newMessage(QTime::currentTime().toString("HH:mm:ss"), user, msg); + return true; + } else { + return false; + } +} + +void ChatServer::sendKeepAlive() { + emit keepAlive(); + m_keepAliveCheckTimer->start(); +} + +void ChatServer::checkKeepAliveResponses() { + qDebug() << "Keep Alive Check" << m_stillAliveUsers; + m_userList = m_stillAliveUsers; + m_stillAliveUsers.clear(); + m_userList.sort(); + emit userListChanged(); +} + +void ChatServer::keepAliveResponse(const QString& user) { + m_stillAliveUsers.append(user); +} + + +QStringList ChatServer::userList() const +{ + return m_userList; +} + +QT_END_NAMESPACE diff --git a/examples/webchannel/chatserver-cpp/chatserver.h b/examples/webchannel/chatserver-cpp/chatserver.h new file mode 100644 index 0000000..eba219a --- /dev/null +++ b/examples/webchannel/chatserver-cpp/chatserver.h @@ -0,0 +1,88 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef ChatServer_H +#define ChatServer_H + +#include <QObject> +#include <QStringList> + +QT_BEGIN_NAMESPACE + +class QTimer; + +class ChatServer : public QObject +{ + Q_OBJECT + + Q_PROPERTY(QStringList userList READ userList NOTIFY userListChanged) + +public: + explicit ChatServer(QObject *parent = 0); + virtual ~ChatServer(); + +public: + //a user logs in with the given username + Q_INVOKABLE bool login(const QString& userName); + + //the user logs out, will be removed from userlist immediately + Q_INVOKABLE bool logout(const QString& userName); + + //a user sends a message to all other users + Q_INVOKABLE bool sendMessage(const QString& user, const QString& msg); + + //response of the keep alive signal from a client. + // This is used to detect disconnects. + Q_INVOKABLE void keepAliveResponse(const QString& user); + + QStringList userList() const; + +protected slots: + void sendKeepAlive(); + void checkKeepAliveResponses(); + +signals: + void newMessage(QString time, QString user, QString msg); + void keepAlive(); + void userListChanged(); + void userCountChanged(); + +private: + QStringList m_userList; + QStringList m_stillAliveUsers; + QTimer* m_keepAliveCheckTimer; +}; + +QT_END_NAMESPACE + +#endif // ChatServer_H diff --git a/examples/webchannel/chatserver-cpp/main.cpp b/examples/webchannel/chatserver-cpp/main.cpp new file mode 100644 index 0000000..d971bee --- /dev/null +++ b/examples/webchannel/chatserver-cpp/main.cpp @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwebchannel.h" + +#include <QCoreApplication> +#include <QUrl> +#include <QDebug> + +#include <QtWebSockets/QWebSocketServer> + +#include "../shared/websocketclientwrapper.h" +#include "../shared/websockettransport.h" +#include "chatserver.h" + + +int main(int argc, char** argv) +{ + QCoreApplication app(argc, argv); + + 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 + ChatServer* chatserver = new ChatServer(&app); + channel.registerObject("chatserver", chatserver); + + return app.exec(); +} |