5 files changed, 364 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/doc/src/chatserver-cpp.qdoc b/examples/webchannel/chatserver-cpp/doc/src/chatserver-cpp.qdoc
new file mode 100644
index 0000000..ceae6ab
--- /dev/null
+++ b/examples/webchannel/chatserver-cpp/doc/src/chatserver-cpp.qdoc
@@ -0,0 +1,63 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 basysKom GmbH, author Bernd Lamecker <bernd.lamecker@basyskom.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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example chatserver-cpp
+    \title Qt WebChannel Chatserver Example
+    \ingroup qtwebchannel-examples
+    \brief Shows how to use the QWebChannel C++ API to implement a simple chat server
+
+    The chatserver examples provides a chat service that client examples can connect to.
+
+    \section1 Overview
+
+    The C++ application implements a QObject which provides all mechanisms required for
+    a chat service.
+    This object is published through a QWebChannel which uses a WebSocket as transport.
+
+    The server provides a basic \c login method (username only, no passwords), which must be
+    successfully invoked before a client is able to chat.
+    After login a client can invoke the method \c sendMessage and receive the signal \c newMessage
+    to write and receive messages. Furthermore there is a \c userList property which provides
+    the names of all other connected clients.
+    Additionally the server sends a keepAlive signal periodically to all clients. The clients
+    have to respond to this signal, otherwise the client will be removed from the \c userList property.
+
+    The example shows how basic QObject elements can be used with QWebChannel, i.e. signals
+    (\c newMessage), slots (\c sendMessage) and properties (\c userList).
+
+    Because this is a plain server application, there are separated clients needed to interact
+    with the server. Both examples chatclient-qml and chatclient-html show a client implementation
+    compatible with this server.
+
+*/
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();
+}