From d9845c2ae3c78085aa8e978e436c94c95998bc99 Mon Sep 17 00:00:00 2001 From: Bernd Lamecker Date: Wed, 17 Sep 2014 15:30:36 +0200 Subject: 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. This reverts commit e8c280a15f7822fa5a563388615313858fd90848. The integration issues w.r.t. unconditional usage of the websockets module have been resolved. Change-Id: I4a07646dcd5e6050d3bd6b9bd1c5b07dbc7d7d69 Reviewed-by: Milian Wolff --- .../webchannel/chatclient-html/chatclient-html.pro | 7 + .../webchannel/chatclient-html/chatclient.html | 131 ++++++++++++++++ .../chatclient-html/doc/src/chatclient-html.qdoc | 63 ++++++++ .../webchannel/chatclient-qml/chatclient-qml.pro | 7 + .../chatclient-qml/doc/src/chatclient-qml.qdoc | 64 ++++++++ .../webchannel/chatclient-qml/qmlchatclient.qml | 173 +++++++++++++++++++++ .../webchannel/chatserver-cpp/chatserver-cpp.pro | 18 +++ examples/webchannel/chatserver-cpp/chatserver.cpp | 124 +++++++++++++++ examples/webchannel/chatserver-cpp/chatserver.h | 88 +++++++++++ .../chatserver-cpp/doc/src/chatserver-cpp.qdoc | 63 ++++++++ examples/webchannel/chatserver-cpp/main.cpp | 71 +++++++++ .../webchannel/shared/websocketclientwrapper.cpp | 72 +++++++++ .../webchannel/shared/websocketclientwrapper.h | 63 ++++++++ examples/webchannel/shared/websockettransport.cpp | 100 ++++++++++++ examples/webchannel/shared/websockettransport.h | 60 +++++++ examples/webchannel/standalone/main.cpp | 4 +- examples/webchannel/standalone/standalone.pro | 8 +- .../standalone/websocketclientwrapper.cpp | 72 --------- .../webchannel/standalone/websocketclientwrapper.h | 63 -------- .../webchannel/standalone/websockettransport.cpp | 100 ------------ .../webchannel/standalone/websockettransport.h | 60 ------- examples/webchannel/webchannel.pro | 12 +- 22 files changed, 1118 insertions(+), 305 deletions(-) create mode 100644 examples/webchannel/chatclient-html/chatclient-html.pro create mode 100644 examples/webchannel/chatclient-html/chatclient.html create mode 100644 examples/webchannel/chatclient-html/doc/src/chatclient-html.qdoc create mode 100644 examples/webchannel/chatclient-qml/chatclient-qml.pro create mode 100644 examples/webchannel/chatclient-qml/doc/src/chatclient-qml.qdoc create mode 100644 examples/webchannel/chatclient-qml/qmlchatclient.qml create mode 100644 examples/webchannel/chatserver-cpp/chatserver-cpp.pro create mode 100644 examples/webchannel/chatserver-cpp/chatserver.cpp create mode 100644 examples/webchannel/chatserver-cpp/chatserver.h create mode 100644 examples/webchannel/chatserver-cpp/doc/src/chatserver-cpp.qdoc create mode 100644 examples/webchannel/chatserver-cpp/main.cpp create mode 100644 examples/webchannel/shared/websocketclientwrapper.cpp create mode 100644 examples/webchannel/shared/websocketclientwrapper.h create mode 100644 examples/webchannel/shared/websockettransport.cpp create mode 100644 examples/webchannel/shared/websockettransport.h delete mode 100644 examples/webchannel/standalone/websocketclientwrapper.cpp delete mode 100644 examples/webchannel/standalone/websocketclientwrapper.h delete mode 100644 examples/webchannel/standalone/websockettransport.cpp delete mode 100644 examples/webchannel/standalone/websockettransport.h diff --git a/examples/webchannel/chatclient-html/chatclient-html.pro b/examples/webchannel/chatclient-html/chatclient-html.pro new file mode 100644 index 0000000..f5f0bf4 --- /dev/null +++ b/examples/webchannel/chatclient-html/chatclient-html.pro @@ -0,0 +1,7 @@ +TEMPLATE = aux + +exampleassets.files += \ + chatclient.html + +exampleassets.path = $$[QT_INSTALL_EXAMPLES]/qwebchannel/chatclient-html +include(../exampleassets.pri) diff --git a/examples/webchannel/chatclient-html/chatclient.html b/examples/webchannel/chatclient-html/chatclient.html new file mode 100644 index 0000000..b392282 --- /dev/null +++ b/examples/webchannel/chatclient-html/chatclient.html @@ -0,0 +1,131 @@ + + + + ChatClient + + + + + + + + + + + + + + + +
+
+ + +
Name:
+
+
+ Login +
+
+ Username already in use. +
+ +
+ + +
+
+ +
+
+
+ +
+
+
+ +
+ +
+ + + + + + diff --git a/examples/webchannel/chatclient-html/doc/src/chatclient-html.qdoc b/examples/webchannel/chatclient-html/doc/src/chatclient-html.qdoc new file mode 100644 index 0000000..3d4b672 --- /dev/null +++ b/examples/webchannel/chatclient-html/doc/src/chatclient-html.qdoc @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2014 basysKom GmbH, author Bernd Lamecker +** 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 chatclient-html + \title Qt WebChannel Chatclient HTML Example + \ingroup qtwebchannel-examples + \brief A HTML/JavaScript client that communicates over a WebSocket with a QWebChannel server. + + The chatclient-html example provides a simple QWebChannel client implemented using JavaScript and HTML. + + \section1 Overview + + The client initializes a WebSocket connection to the chat server and receives an object + containing all neccessarry signals, slots and properties for implementing a chat client. + + After login the client can invoke the method \c sendMessage and receive the signal \c newMessage + to send and receive messages. Furthermore there is a \c userList property which provides the + names of all other connected clients. It is automatically updated when its contents change. + Also, the client responds to the servers keep alive signal which is needed to detect disconnected + clients and remove them from the \c userlist property. + + The example shows how basic elements can be used with the client JavaScript implementation of + QWebChannel, like connecting to signals (\c newMessage), calling slots (\c sendMessage) and handle + property changes (\c userList). + + The client is able to work with the chatserver-cpp example. + + To run the example, open the \c chatclient.html in a browser. + + \sa {chatserver-cpp}, {chatclient-qml} + +*/ diff --git a/examples/webchannel/chatclient-qml/chatclient-qml.pro b/examples/webchannel/chatclient-qml/chatclient-qml.pro new file mode 100644 index 0000000..74b274d --- /dev/null +++ b/examples/webchannel/chatclient-qml/chatclient-qml.pro @@ -0,0 +1,7 @@ +TEMPLATE = aux + +exampleassets.files += \ + qmlchatclient.qml + +exampleassets.path = $$[QT_INSTALL_EXAMPLES]/qwebchannel/chatclient-qml +include(../exampleassets.pri) diff --git a/examples/webchannel/chatclient-qml/doc/src/chatclient-qml.qdoc b/examples/webchannel/chatclient-qml/doc/src/chatclient-qml.qdoc new file mode 100644 index 0000000..da80526 --- /dev/null +++ b/examples/webchannel/chatclient-qml/doc/src/chatclient-qml.qdoc @@ -0,0 +1,64 @@ +/**************************************************************************** +** +** Copyright (C) 2014 basysKom GmbH, author Bernd Lamecker +** 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 chatclient-qml + \title Qt WebChannel Chatclient QML Example + \ingroup qtwebchannel-examples + \brief A QML client that communicates over a WebSocket with a QWebChannel server. + + The chatclient-html example provides a simple QWebChannel client implemented using JavaScript and QML. + + \section1 Overview + + The client initializes a WebSocket connection to the chat server and receives an object + containing all neccessarry signals, slots and properties for implementing a chat client. + + After login, the client can invoke the method \c sendMessage and receive the signal \c newMessage + to send and receive messages. Furthermore, there is a \c userList property which provides the + names of all other connected clients. It is automatically updated when its contents change. + Also, the client responds to the servers keep alive signal which is needed to detect disconnected + clients and remove them from the \c userList property. + + The example shows how basic elements can be used with the client JavaScript implementation of + QWebChannel, like connecting to signals (\c newMessage), calling slots (\c sendMessage) and handle + property changes (\c userList). + + The client is able to work with the chatserver-cpp as server application + + + The example can be run by invoking \c {path/to/qmlscene qmlchatclient.qml}. + + \sa {chatserver-cpp}, {chatclient-html} + +*/ diff --git a/examples/webchannel/chatclient-qml/qmlchatclient.qml b/examples/webchannel/chatclient-qml/qmlchatclient.qml new file mode 100644 index 0000000..7ecd15c --- /dev/null +++ b/examples/webchannel/chatclient-qml/qmlchatclient.qml @@ -0,0 +1,173 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Copyright (C) 2014 basysKom GmbH, author Bernd Lamecker +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.2 +import QtQuick.Controls 1.1 +import QtQuick.Window 2.0 +import QtQuick.Layouts 1.1 +import Qt.WebSockets 1.0 +import "qwebchannel.js" as WebChannel + +ApplicationWindow { + id: root + title: qsTr("Hello World") + width: 640 + height: 480 + + property var channel; + + WebSocket { + id: socket + + url: "ws://localhost:12345"; + active: false + + // the following three properties/functions are required to align the QML WebSocket API with the HTML5 WebSocket API. + property var send: function (arg) { + sendTextMessage(arg); + } + + onTextMessageReceived: { + onmessage({data: message}); + } + property var onmessage; + + onStatusChanged: if (socket.status == WebSocket.Error) { + console.error("Error: " + socket.errorString) + } else if (socket.status == WebSocket.Closed) { + messageBox.text += "\nSocket closed" + } else if (socket.status == WebSocket.Open) { + //open the webchannel with the socket as transport + new WebChannel.QWebChannel(socket, function(ch) { + root.channel = ch; + + //connect to the changed signal of the userList property + ch.objects.chatserver.userListChanged.connect(function(args) { + userlist.text = ''; + ch.objects.chatserver.userList.forEach(function(user) { + userlist.text += user + '\n'; + }); + }); + //connect to the newMessage signal + ch.objects.chatserver.newMessage.connect(function(time, user, message) { + chat.text = chat.text + "[" + time + "] " + user + ": " + message + '\n'; + }); + //connect to the keep alive signal + ch.objects.chatserver.keepAlive.connect(function(args) { + if (loginName.text !== '') + //and call the keep alive response method as an answer + ch.objects.chatserver.keepAliveResponse(loginName.text) + }); + }); + } + } + + GridLayout { + id: grid + columns: 2 + anchors.fill: parent + Text { + id: chat + text: "" + Layout.fillHeight: true + Layout.fillWidth: true + } + + Text { + id: userlist + text: "" + width: 150 + Layout.fillHeight: true + } + TextField { + id: message + height: 50 + Layout.columnSpan: 2 + Layout.fillWidth: true + + onEditingFinished: { + if (message.text.length) + //call the sendMessage method to send the message + root.channel.objects.chatserver.sendMessage(loginName.text, message.text); + message.text = ''; + } + } + } + + + Window { + id: loginWindow; + title: "Login"; + modality: Qt.ApplicationModal + + TextField { + id: loginName + + anchors.top: parent.top + anchors.horizontalCenter: parent.horizontalCenter + } + Button { + anchors.top: loginName.bottom + anchors.horizontalCenter: parent.horizontalCenter + id: loginButton + text: "Login" + + onClicked: { + //call the login method + root.channel.objects.chatserver.login(loginName.text, function(arg) { + //check the return value for success + if (arg === true) { + loginError.visible = false; + loginWindow.close(); + } else { + loginError.visible = true; + } + }); + + } + } + Text { + id: loginError + anchors.top: loginButton.bottom + anchors.horizontalCenter: parent.horizontalCenter + text: "Name already in use" + visible: false; + } + } + + Component.onCompleted: { + loginWindow.show(); + socket.active = true; //connect + } +} 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 +** 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 +#include +#include + +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 +** 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 +#include + +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 +** 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 +** 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 +#include +#include + +#include + +#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(); +} diff --git a/examples/webchannel/shared/websocketclientwrapper.cpp b/examples/webchannel/shared/websocketclientwrapper.cpp new file mode 100644 index 0000000..68ff1c0 --- /dev/null +++ b/examples/webchannel/shared/websocketclientwrapper.cpp @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff +** 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 "websocketclientwrapper.h" + +#include + +#include "websockettransport.h" + +/*! + \brief Wrapps connected QWebSockets clients in WebSocketTransport objects. + + This code is all that is required to connect incoming WebSockets to the WebChannel. Any kind + of remote JavaScript client that supports WebSockets can thus receive messages and access the + published objects. +*/ + +QT_BEGIN_NAMESPACE + +/*! + Construct the client wrapper with the given parent. + + All clients connecting to the QWebSocketServer will be automatically wrapped + in WebSocketTransport objects. +*/ +WebSocketClientWrapper::WebSocketClientWrapper(QWebSocketServer *server, QObject *parent) + : QObject(parent) + , m_server(server) +{ + connect(server, &QWebSocketServer::newConnection, + this, &WebSocketClientWrapper::handleNewConnection); +} + +/*! + Wrap an incoming WebSocket connection in a WebSocketTransport object. +*/ +void WebSocketClientWrapper::handleNewConnection() +{ + emit clientConnected(new WebSocketTransport(m_server->nextPendingConnection())); +} + +QT_END_NAMESPACE diff --git a/examples/webchannel/shared/websocketclientwrapper.h b/examples/webchannel/shared/websocketclientwrapper.h new file mode 100644 index 0000000..f49b8b9 --- /dev/null +++ b/examples/webchannel/shared/websocketclientwrapper.h @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff +** 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 WEBSOCKETTRANSPORTSERVER_H +#define WEBSOCKETTRANSPORTSERVER_H + +#include + +QT_BEGIN_NAMESPACE + +class QWebSocketServer; +class WebSocketTransport; + +class WebSocketClientWrapper : public QObject +{ + Q_OBJECT + +public: + WebSocketClientWrapper(QWebSocketServer *server, QObject *parent = 0); + +Q_SIGNALS: + void clientConnected(WebSocketTransport* client); + +private Q_SLOTS: + void handleNewConnection(); + +private: + QWebSocketServer *m_server; +}; + +QT_END_NAMESPACE + +#endif // WEBSOCKETTRANSPORTSERVER_H diff --git a/examples/webchannel/shared/websockettransport.cpp b/examples/webchannel/shared/websockettransport.cpp new file mode 100644 index 0000000..266563a --- /dev/null +++ b/examples/webchannel/shared/websockettransport.cpp @@ -0,0 +1,100 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff +** 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 "websockettransport.h" + +#include +#include +#include + +#include + +/*! + \brief QWebChannelAbstractSocket implementation that uses a QWebSocket internally. + + The transport delegates all messages received over the QWebSocket over its + textMessageReceived signal. Analogously, all calls to sendTextMessage will + be send over the QWebSocket to the remote client. +*/ + +QT_BEGIN_NAMESPACE + +/*! + Construct the transport object and wrap the given socket. + + The socket is also set as the parent of the transport object. +*/ +WebSocketTransport::WebSocketTransport(QWebSocket *socket) +: QWebChannelAbstractTransport(socket) +, m_socket(socket) +{ + connect(socket, &QWebSocket::textMessageReceived, + this, &WebSocketTransport::textMessageReceived); +} + +/*! + Destroys the WebSocketTransport. +*/ +WebSocketTransport::~WebSocketTransport() +{ + +} + +/*! + Serialize the JSON message and send it as a text message via the WebSocket to the client. +*/ +void WebSocketTransport::sendMessage(const QJsonObject &message) +{ + QJsonDocument doc(message); + m_socket->sendTextMessage(QString::fromUtf8(doc.toJson(QJsonDocument::Compact))); +} + +/*! + Deserialize the stringified JSON messageData and emit messageReceived. +*/ +void WebSocketTransport::textMessageReceived(const QString &messageData) +{ + QJsonParseError error; + QJsonDocument message = QJsonDocument::fromJson(messageData.toUtf8(), &error); + if (error.error) { + qWarning() << "Failed to parse text message as JSON object:" << messageData + << "Error is:" << error.errorString(); + return; + } else if (!message.isObject()) { + qWarning() << "Received JSON message that is not an object: " << messageData; + return; + } + emit messageReceived(message.object(), this); +} + +QT_END_NAMESPACE diff --git a/examples/webchannel/shared/websockettransport.h b/examples/webchannel/shared/websockettransport.h new file mode 100644 index 0000000..4d4a6cd --- /dev/null +++ b/examples/webchannel/shared/websockettransport.h @@ -0,0 +1,60 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff +** 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 WEBSOCKETTRANSPORT_H +#define WEBSOCKETTRANSPORT_H + +#include + +QT_BEGIN_NAMESPACE + +class QWebSocket; +class WebSocketTransport : public QWebChannelAbstractTransport +{ + Q_OBJECT +public: + explicit WebSocketTransport(QWebSocket *socket); + virtual ~WebSocketTransport(); + + void sendMessage(const QJsonObject &message) Q_DECL_OVERRIDE; + +private Q_SLOTS: + void textMessageReceived(const QString &message); + +private: + QWebSocket *m_socket; +}; + +QT_END_NAMESPACE + +#endif // WEBSOCKETTRANSPORT_H diff --git a/examples/webchannel/standalone/main.cpp b/examples/webchannel/standalone/main.cpp index 6f0db3a..201c4cd 100644 --- a/examples/webchannel/standalone/main.cpp +++ b/examples/webchannel/standalone/main.cpp @@ -42,8 +42,8 @@ #include -#include "websocketclientwrapper.h" -#include "websockettransport.h" +#include "../shared/websocketclientwrapper.h" +#include "../shared/websockettransport.h" #include "ui_dialog.h" diff --git a/examples/webchannel/standalone/standalone.pro b/examples/webchannel/standalone/standalone.pro index fdeb87a..19aa264 100644 --- a/examples/webchannel/standalone/standalone.pro +++ b/examples/webchannel/standalone/standalone.pro @@ -4,12 +4,12 @@ CONFIG += warn_on SOURCES += \ main.cpp \ - websockettransport.cpp \ - websocketclientwrapper.cpp + ../shared/websockettransport.cpp \ + ../shared/websocketclientwrapper.cpp HEADERS += \ - websockettransport.h \ - websocketclientwrapper.h + ../shared/websockettransport.h \ + ../shared/websocketclientwrapper.h FORMS += \ dialog.ui diff --git a/examples/webchannel/standalone/websocketclientwrapper.cpp b/examples/webchannel/standalone/websocketclientwrapper.cpp deleted file mode 100644 index 68ff1c0..0000000 --- a/examples/webchannel/standalone/websocketclientwrapper.cpp +++ /dev/null @@ -1,72 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff -** 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 "websocketclientwrapper.h" - -#include - -#include "websockettransport.h" - -/*! - \brief Wrapps connected QWebSockets clients in WebSocketTransport objects. - - This code is all that is required to connect incoming WebSockets to the WebChannel. Any kind - of remote JavaScript client that supports WebSockets can thus receive messages and access the - published objects. -*/ - -QT_BEGIN_NAMESPACE - -/*! - Construct the client wrapper with the given parent. - - All clients connecting to the QWebSocketServer will be automatically wrapped - in WebSocketTransport objects. -*/ -WebSocketClientWrapper::WebSocketClientWrapper(QWebSocketServer *server, QObject *parent) - : QObject(parent) - , m_server(server) -{ - connect(server, &QWebSocketServer::newConnection, - this, &WebSocketClientWrapper::handleNewConnection); -} - -/*! - Wrap an incoming WebSocket connection in a WebSocketTransport object. -*/ -void WebSocketClientWrapper::handleNewConnection() -{ - emit clientConnected(new WebSocketTransport(m_server->nextPendingConnection())); -} - -QT_END_NAMESPACE diff --git a/examples/webchannel/standalone/websocketclientwrapper.h b/examples/webchannel/standalone/websocketclientwrapper.h deleted file mode 100644 index f49b8b9..0000000 --- a/examples/webchannel/standalone/websocketclientwrapper.h +++ /dev/null @@ -1,63 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff -** 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 WEBSOCKETTRANSPORTSERVER_H -#define WEBSOCKETTRANSPORTSERVER_H - -#include - -QT_BEGIN_NAMESPACE - -class QWebSocketServer; -class WebSocketTransport; - -class WebSocketClientWrapper : public QObject -{ - Q_OBJECT - -public: - WebSocketClientWrapper(QWebSocketServer *server, QObject *parent = 0); - -Q_SIGNALS: - void clientConnected(WebSocketTransport* client); - -private Q_SLOTS: - void handleNewConnection(); - -private: - QWebSocketServer *m_server; -}; - -QT_END_NAMESPACE - -#endif // WEBSOCKETTRANSPORTSERVER_H diff --git a/examples/webchannel/standalone/websockettransport.cpp b/examples/webchannel/standalone/websockettransport.cpp deleted file mode 100644 index 266563a..0000000 --- a/examples/webchannel/standalone/websockettransport.cpp +++ /dev/null @@ -1,100 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff -** 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 "websockettransport.h" - -#include -#include -#include - -#include - -/*! - \brief QWebChannelAbstractSocket implementation that uses a QWebSocket internally. - - The transport delegates all messages received over the QWebSocket over its - textMessageReceived signal. Analogously, all calls to sendTextMessage will - be send over the QWebSocket to the remote client. -*/ - -QT_BEGIN_NAMESPACE - -/*! - Construct the transport object and wrap the given socket. - - The socket is also set as the parent of the transport object. -*/ -WebSocketTransport::WebSocketTransport(QWebSocket *socket) -: QWebChannelAbstractTransport(socket) -, m_socket(socket) -{ - connect(socket, &QWebSocket::textMessageReceived, - this, &WebSocketTransport::textMessageReceived); -} - -/*! - Destroys the WebSocketTransport. -*/ -WebSocketTransport::~WebSocketTransport() -{ - -} - -/*! - Serialize the JSON message and send it as a text message via the WebSocket to the client. -*/ -void WebSocketTransport::sendMessage(const QJsonObject &message) -{ - QJsonDocument doc(message); - m_socket->sendTextMessage(QString::fromUtf8(doc.toJson(QJsonDocument::Compact))); -} - -/*! - Deserialize the stringified JSON messageData and emit messageReceived. -*/ -void WebSocketTransport::textMessageReceived(const QString &messageData) -{ - QJsonParseError error; - QJsonDocument message = QJsonDocument::fromJson(messageData.toUtf8(), &error); - if (error.error) { - qWarning() << "Failed to parse text message as JSON object:" << messageData - << "Error is:" << error.errorString(); - return; - } else if (!message.isObject()) { - qWarning() << "Received JSON message that is not an object: " << messageData; - return; - } - emit messageReceived(message.object(), this); -} - -QT_END_NAMESPACE diff --git a/examples/webchannel/standalone/websockettransport.h b/examples/webchannel/standalone/websockettransport.h deleted file mode 100644 index 4d4a6cd..0000000 --- a/examples/webchannel/standalone/websockettransport.h +++ /dev/null @@ -1,60 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff -** 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 WEBSOCKETTRANSPORT_H -#define WEBSOCKETTRANSPORT_H - -#include - -QT_BEGIN_NAMESPACE - -class QWebSocket; -class WebSocketTransport : public QWebChannelAbstractTransport -{ - Q_OBJECT -public: - explicit WebSocketTransport(QWebSocket *socket); - virtual ~WebSocketTransport(); - - void sendMessage(const QJsonObject &message) Q_DECL_OVERRIDE; - -private Q_SLOTS: - void textMessageReceived(const QString &message); - -private: - QWebSocket *m_socket; -}; - -QT_END_NAMESPACE - -#endif // WEBSOCKETTRANSPORT_H diff --git a/examples/webchannel/webchannel.pro b/examples/webchannel/webchannel.pro index de6b4b8..30df5a5 100644 --- a/examples/webchannel/webchannel.pro +++ b/examples/webchannel/webchannel.pro @@ -1,7 +1,11 @@ TEMPLATE = subdirs - -qtHaveModule(widgets):qtHaveModule(websockets) { - SUBDIRS += standalone +qtHaveModule(websockets) { + SUBDIRS += chatserver-cpp \ + chatclient-qml + qtHaveModule(widgets) { + SUBDIRS += standalone + } } -SUBDIRS += nodejs +SUBDIRS += nodejs \ + chatclient-html -- cgit v1.2.1