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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Copyright (C) 2014 basysKom GmbH, author Bernd Lamecker <bernd.lamecker@basyskom.com>
** Contact: http://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company 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
}
}
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