JavaScript simulates chat window examples that can be expanded, dragged, and closed

JavaScript simulates chat window examples that can be expanded, dragged, and closed_javascript skills

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Release： 2016-05-16 15:59:37

Original

967 people have browsed it

A QQ-like chat window implemented with JavaScript. You can expand layers, drag layers, close layers, and simply send messages. It’s very good, and there’s not much code. It’s suitable for novices to study, and it’s also practical. You can Many JS CSS applications are extended on this basis.

<!--CTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dt-->
<html>
<head>
<title>层展开、层拖动、层关闭</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css" media="all" rel="stylesheet">
 <!--
 body {
  text-align:left;
  margin:0;
  font:normal 12px Verdana, Arial;
  background:#FFEEFF
 }
 form {
  margin:0;
  font:normal 12px Verdana, Arial;
 }
 table,input {
  font:normal 12px Verdana, Arial;
 }
 a:link,a:visited{
  text-decoration:none;
  color:#333333;
 }
 a:hover{
  text-decoration:none;
  color:#FF6600
 }
 #main {
  width:400px;
  position:absolute;
  left:600px;
  top:100px;
  background:#EFEFFF;
  text-align:left;
  filter:Alpha(opacity=90)
 }
 #ChatHead {
  text-align:right;
  padding:3px;
  border:1px solid #003399;
  background:#DCDCFF;
  font-size:11px;
  color:#3366FF;
  cursor:move;
 }
 #ChatHead a:link,#ChatHead a:visited, {
  font-size:14px;
  font-weight:bold;
  padding:0 3px
 }
 #ChatBody {
  border:1px solid #003399;
  border-top:none;
  padding:2px;
 }
 #ChatContent {
  height:200px;
  padding:6px;
  overflow-y:scroll;
  word-break: break-all
 }
 #ChatBtn {
  border-top:1px solid #003399;
  padding:2px
 }
 -->
 </style><script language="javascript" type="text/javascript">
 <!--
 function $(d){return document.getElementById(d);}
 function gs(d){var t=$(d);if (t){return t.style;}else{return null;}}
 function gs2(d,a){
  if (d.currentStyle){ 
   var curVal=d.currentStyle[a]
  }else{ 
   var curVal=document.defaultView.getComputedStyle(d, null)[a]
  } 
  return curVal;
 }
 function ChatHidden(){gs("ChatBody").display = "none";}
 function ChatShow(){gs("ChatBody").display = "";}
 function ChatClose(){gs("main").display = "none";}
 function ChatSend(obj){
  var o = obj.ChatValue;
  if (o.value.length>0){
   $("ChatContent").innerHTML += "<strong>Akon说：</strong>"+o.value+"<br/>";
   o.value='';
  }
 }
 if (document.getElementById){
  (
   function(){
    if (window.opera){ document.write("<input type='hidden' id='Q' value=' '>"); }
    var n = 500;
    var dragok = false;
    var y,x,d,dy,dx;
    function move(e)
    {
     if (!e) e = window.event;
     if (dragok){
      d.style.left = dx + e.clientX - x + "px";
      d.style.top = dy + e.clientY - y + "px";
      return false;
     }
    }
    function down(e){
     if (!e) e = window.event;
     var temp = (typeof e.target != "undefined")&#63;e.target:e.srcElement;
     if (temp.tagName != "HTML"|"BODY" && temp.className != "dragclass"){
      temp = (typeof temp.parentNode != "undefined")&#63;temp.parentNode:temp.parentElement;
     }
     if('TR'==temp.tagName){
      temp = (typeof temp.parentNode != "undefined")&#63;temp.parentNode:temp.parentElement;
      temp = (typeof temp.parentNode != "undefined")&#63;temp.parentNode:temp.parentElement;
      temp = (typeof temp.parentNode != "undefined")&#63;temp.parentNode:temp.parentElement;
     }
     if (temp.className == "dragclass"){
      if (window.opera){ document.getElementById("Q").focus(); }
      dragok = true;
      temp.style.zIndex = n++;
      d = temp;
      dx = parseInt(gs2(temp,"left"))|0;
      dy = parseInt(gs2(temp,"top"))|0;
      x = e.clientX;
      y = e.clientY;
      document.onmousemove = move;
      return false;
     }
    }
    function up(){
     dragok = false;
     document.onmousemove = null;
    }
    document.onmousedown = down;
    document.onmouseup = up;
   }
  )();
 }
 -->
 </script>
</head>
<body>
<div class="dragclass" id="main" style="LEFT: 588px; TOP: 298px">
<div id="ChatHead"><a onclick="ChatHidden();" href="#">-</a>
<a onclick="ChatShow();" href="#">+</a>
<a onclick="ChatClose();" href="#">x</a> </div>
<div id="ChatBody">
<div id="ChatContent">HI! Hello ! Welcome to www.jb51.net</div>
<div id="ChatBtn">
<form action="" method="post" name="chat">
</form>
</div>
</div>
</div>
</body>
</html>

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I hope this article will be helpful to everyone’s JavaScript programming design.