chatclient.html Example File

chatclient-html/chatclient.html
<!DOCTYPE html>
<html>
<head>
    <title>ChatClient</title>

    <meta name="viewport" content="width=device-width, initial-scale=1" />

    <link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.css" />
    <link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/default/easyui.css" />
    <link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/icon.css" />
    <link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/demo/demo.css" />
    <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
    <script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="qwebchannel.js"></script>

    <script>
        'use strict';
        var wsUri = "ws://localhost:12345";
        window.loggedin = false;

        window.onload = function() {
            var socket = new WebSocket(wsUri);

            socket.onclose = function()
            {
                console.error("web channel closed");
            };
            socket.onerror = function(error)
            {
                console.error("web channel error: " + error);
            };
            socket.onopen = function()
            {
                window.channel = new QWebChannel(socket, function(channel) {
                    //connect to the changed signal of a property
                    channel.objects.chatserver.userListChanged.connect(function() {
                        $('#userlist').empty();
                        //access the property
                        channel.objects.chatserver.userList.forEach(function(user) {
                            $('#userlist').append(user + '<br>');
                        });
                    });
                    //connect to a signal
                    channel.objects.chatserver.newMessage.connect(function(time, user, message) {
                        $('#chat').append("[" + time + "] " + user + ": " +  message + '<br>');
                    });
                    //connect to a signal
                    channel.objects.chatserver.keepAlive.connect(function(args) {
                        if(window.loggedin) {
                            //call a method
                            channel.objects.chatserver.keepAliveResponse($('#loginname').val())
                            console.log("sent alive");
                        }
                    });

                });
            }
        }
    </script>
</head>
<body>

<div id="loginDialog" class="easyui-dialog" title="Chat Login" data-options="iconCls:'icon-save'" style="width:400px;height:200px;padding:10px">
    <form id="loginForm" method="post">
        <table cellpadding="5">
        <tr><td>Name:</td><td><input class="easyui-validatebox" type="text" id="loginname" name="name" data-options="required:true"></input></td></tr>
        </table>
    </form>
    <div style="text-align:center;padding:5px">
        <a href="javascript:void(0)" class="easyui-linkbutton" onclick="submitForm()">Login</a>
    </div>
    <div style="text-align:center;padding:5px" id="loginError">
        Username already in use.
    </div>
    <script>
    $('#loginForm').submit(submitForm);
    function submitForm(event) {
        console.log("DEBUG login: " + channel);
        channel.objects.chatserver.login($('#loginname').val(), function(arg) {
            console.log("DEBUG login response: " + arg);
            if(arg === true) {
                $('#loginError').hide();
                $('#loginDialog').dialog('close');
                window.loggedin = true;
            } else {
                $('#loginError').show();
            }
        });
        console.log($('#loginname').val());
        if(event !== undefined)
            event.preventDefault();
        return false;

    }
    </script>
</div>

<div class="easyui-layout" style="width:500px;height:300px;">
    <div data-options="region:'east',split:true" title="Users" id="userlist" style="width:100px;">

    </div>
    <div data-options="region:'south',split:true" style="height:50px;">
        <form id="messageForm">
            <input class="easyui-validatebox" type="text" id="message" name="name" style="width: 97%"></input>
        </form>
    </div>
    <div data-options="region:'center'" id="chat">

    </div>
    <script>
    $('#messageForm').submit(submitMessage);
    function submitMessage(event) {
        channel.objects.chatserver.sendMessage($('#loginname').val(), $('#message').val());
        $('#message').val('');
        if(event !== undefined)
            event.preventDefault();
        return false;
    }
    </script>
</div>

<script type="text/javascript">
$(document).ready(function(){
    $('#loginError').hide();
});
</script>

</body>
</html>

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.