qtwebchannel5-doc-html 5.9.5-0ubuntu1 / usr / share / qt5 / doc / qtwebchannel / qtwebchannel-chatclient-html-chatclient-html.html

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>chatclient.html Example File | Qt WebChannel 5.9</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td >Qt 5.9</td><td ><a href="qtwebchannel-index.html">Qt WebChannel</a></td><td ><a href="qtwebchannel-chatclient-html-example.html">Qt WebChannel ChatClient HTML Example</a></td><td >chatclient.html Example File</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.5 Reference Documentation</td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">chatclient.html Example File</h1>
<span class="subtitle">chatclient-html/chatclient.html</span>
<!-- $$$chatclient-html/chatclient.html-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  &lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
      &lt;title&gt;ChatClient&lt;/title&gt;

      &lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1&quot; /&gt;

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

      &lt;script&gt;
          'use strict';
          var wsUri = &quot;ws://localhost:12345&quot;;
          window.loggedin = false;

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

              socket.onclose = function() {
                  console.error(&quot;web channel closed&quot;);
              };
              socket.onerror = function(error) {
                  console.error(&quot;web channel error: &quot; + 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 + '&lt;br&gt;');
                          });
                      });
                      //connect to a signal
                      channel.objects.chatserver.newMessage.connect(function(time, user, message) {
                          $('#chat').append(&quot;[&quot; + time + &quot;] &quot; + user + &quot;: &quot; + message + '&lt;br&gt;');
                      });
                      //connect to a signal
                      channel.objects.chatserver.keepAlive.connect(function(args) {
                          if (window.loggedin) {
                              //call a method
                              channel.objects.chatserver.keepAliveResponse($('#loginname').val())
                              console.log(&quot;sent alive&quot;);
                          }
                      });

                  });
              }
          }
      &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;

  &lt;div id=&quot;loginDialog&quot; class=&quot;easyui-dialog&quot; title=&quot;Chat Login&quot; data-options=&quot;iconCls:'icon-save'&quot; style=&quot;width:400px;height:200px;padding:10px&quot;&gt;
      &lt;form id=&quot;loginForm&quot; method=&quot;post&quot;&gt;
          &lt;table cellpadding=&quot;5&quot;&gt;
          &lt;tr&gt;&lt;td&gt;Name:&lt;/td&gt;&lt;td&gt;&lt;input class=&quot;easyui-validatebox&quot; type=&quot;text&quot; id=&quot;loginname&quot; name=&quot;name&quot; data-options=&quot;required:true&quot;&gt;&lt;/input&gt;&lt;/td&gt;&lt;/tr&gt;
          &lt;/table&gt;
      &lt;/form&gt;
      &lt;div style=&quot;text-align:center;padding:5px&quot;&gt;
          &lt;a href=&quot;javascript:void(0)&quot; class=&quot;easyui-linkbutton&quot; onclick=&quot;submitForm()&quot;&gt;Login&lt;/a&gt;
      &lt;/div&gt;
      &lt;div style=&quot;text-align:center;padding:5px&quot; id=&quot;loginError&quot;&gt;
          Username already in use.
      &lt;/div&gt;
      &lt;script&gt;
      $('#loginForm').submit(submitForm);

      function submitForm(event) {
          console.log(&quot;DEBUG login: &quot; + channel);
          channel.objects.chatserver.login($('#loginname').val(), function(arg) {
              console.log(&quot;DEBUG login response: &quot; + 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;
      }
      &lt;/script&gt;
  &lt;/div&gt;

  &lt;div class=&quot;easyui-layout&quot; style=&quot;width:500px;height:300px;&quot;&gt;
      &lt;div data-options=&quot;region:'east',split:true&quot; title=&quot;Users&quot; id=&quot;userlist&quot; style=&quot;width:100px;&quot;&gt;

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

      &lt;/div&gt;
      &lt;script&gt;
      $('#messageForm').submit(submitMessage);

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

  &lt;script type=&quot;text/javascript&quot;&gt;
  $(document).ready(function() {
      $('#loginError').hide();
  });
  &lt;/script&gt;

  &lt;/body&gt;
  &lt;/html&gt;

</pre>
</div>
<!-- @@@chatclient-html/chatclient.html -->
        </div>
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   </div>
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