JS implements the animated QQ customer service special effects code displayed from the top drop-down

JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills

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Release： 2016-05-16 15:35:19

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The example in this article describes the JS implementation of QQ customer service special effects code with animation from the top drop-down display. Share it with everyone for your reference, the details are as follows:

This is an animated version of the QQ online customer service code. The QQ customer service code is pulled down from the top of the web page. It has a flexible buffering effect after the slide ends. Against the background of the world map, it seems that the taste has suddenly improved. The animation effect is realized by jq. You can modify some information from QQ customer service and replace it with your own QQ. Then upload it to the web page and it will be available. Note: The test effect will be better in Firefox and Chrome browser.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-top-show-down-dh-qq-online-codes/

The specific code is as follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>网页顶部下拉的jquery在线客服</title>
<style>
*{margin: 0px;padding: 0px;list-style: none;}
#qqlist a{text-decoration: none;color: black;font-size: 12px;display: block;line-height: 28px;vertical-align: middle;}
img{line-height: 28px;vertical-align: middle;text-align: center;padding-bottom: 6px;}
#cs{width: 100%;height: 0px;border-bottom: 3px solid red;-webkit-box-shadow: 2px 2px 2px #999;position: relative;top: 0px;-moz-box-shadow: 2px 2px 2px #999;box-shadow: 2px 2px 2px #999;}
#qqlist{position: absolute;left: -200px;top: 150px;z-index: 1;}
#qqlist ul li{width: 80px;height: 28px;margin: 10px;}
#bg{width: 918px;height: 500px;position: absolute;right: 10px;display: none;filter: alpha(opacity: 0);opacity: 0;}
#btn{width: 100px;height: 20px;margin: auto;background: red;-webkit-box-shadow: 2px 2px 2px #999;border-radius: 0 0 8px 8px;position: relative;top: 0px;-moz-box-shadow: 2px 2px 2px #999;box-shadow: 2px 2px 2px #999;}
#btn span{display: block;color: white;text-align: center;line-height: 20px;cursor: pointer;font-size: 12px;}
#foot_bm a, #foot_bm, p, p a{color: #666;position: relative;}
</style>
<script>
function startMove(obj,json,fnEnd)
{
 clearInterval(obj.timer);
 obj.timer=setInterval(function()
 {
  var bStop=true;
  for (var attr in json)
  {
   var now=0;
   if(attr=="opacity")
   {
    now=Math.round(parseFloat(getStyle(obj,attr))*100);
   }
   else
   {
    now=parseInt(getStyle(obj,attr));
   }
   var speed=(json[attr]-now)/10;
   speed=speed>0&#63;Math.ceil(speed):Math.floor(speed);
   if(now!=json[attr])bStop=false;
   if(attr=="opacity")
   {
    obj.style.filter="alpha(opacity:"+(now+speed)+")";
    obj.style.opacity=(now+speed)/100;
   }
   else
   {
    obj.style[attr]=(now+speed)+"px";
   }
  }
  if(bStop)
  {
   clearInterval(obj.timer);
   if(fnEnd)fnEnd();
  }
 }, 30)
}
function startFlex(obj,json,fnEnd)
{
 clearInterval(obj.timer);
 obj.timer=setInterval(function()
 {
  var bStop=true;
  var cur=0;
  for(var attr in json)
  {
   if(!obj.oSpeed)obj.oSpeed={};
   if(!obj.oSpeed[attr])obj.oSpeed[attr]=0;
   cur=parseInt(getStyle(obj,attr));
   if(Math.abs(json[attr]-cur)>1 || Math.abs(obj.oSpeed[attr])>1)
   {
    bStop=false;
    obj.oSpeed[attr]+=(json[attr]-cur)/5;
    obj.oSpeed[attr]*=0.7;
    var maxSpeed=65;
    if(Math.abs(obj.oSpeed[attr])>maxSpeed)
    {
     obj.oSpeed[attr]=obj.oSpeed[attr]>0&#63;maxSpeed:-maxSpeed;
    }
    obj.style[attr]=cur+obj.oSpeed[attr]+"px";
   }
  } 
  if(bStop)
  {
   clearInterval(obj.timer);
   if(fnEnd)fnEnd();
  }
 }, 30);
}
function getStyle(obj,name)
{
 if(obj.currentStyle)
 {
  return obj.currentStyle[name];
 }
 else
 {
  return getComputedStyle(obj,false)[name];
 }
}
window.onload=function()
{
 var oCs=document.getElementById('cs');
 var oBtn=document.getElementById('btn').getElementsByTagName('span')[0];
 var oImg=document.getElementById('bg');
 var oLi=document.getElementById('qqlist').getElementsByTagName('li');
 var on=0;
 for(var i=0; i<oLi.length; i++)
 {
  oLi[i].style.left=oLi[i].offsetLeft+"px";
  oLi[i].style.top=oLi[i].offsetTop+"px";
 }
 for(var i=0; i<oLi.length; i++)
 {
  oLi[i].style.position="absolute";
  oLi[i].style.margin=0;
 }
 function showImg()
 {
  oImg.style.display="block";
  startMove(oImg,{opacity:80},function()
  {
   showQQ(350);
  });
 }
 function showQQ(iTarget)
 {
  var i=1;
  startFlex(oLi[0],{left:iTarget});
  timer=setInterval(function()
  {
   startFlex(oLi[i],{left:iTarget});
   i++;
   if(i>=oLi.length)
   {
    clearInterval(timer);
   }
  }, 20);
 }
 oBtn.onclick=function()
 {
  if(on==0)
  {
   startFlex(oCs,{height:500},function()
   {
    showImg();
    oBtn.innerHTML="CLOSE";
   });
   on=1;
  }
  else
  {
   showQQ(-200);
   timer2=setInterval(function()
   {
    startMove(oImg,{opacity:0},function()
    {
     oImg.style.display="none";
     startMove(oCs,{height:0});
    })
    if(oCs.style.height==0+"px")
    {
     clearInterval(timer2);
     oBtn.innerHTML="CONTACT US";
    }
   },500); 
   on=0;
  }
 }
}
</script>
</head>
<body>
<div id="cs">
 <div id="qqlist">
  <ul>
   <li><a target="_blank" href="http://wpa.qq.com/msgrd&#63;v=3&uin=123456789&site=qq&menu=yes"><img border="0" src="http://wpa.qq.com/pa&#63;p=2:123456789:52" alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" title="您的网站"/> 售前咨询</a></li>
   <li><a target="_blank" href="http://wpa.qq.com/msgrd&#63;v=3&uin=123456789&site=qq&menu=yes"><img border="0" src="http://wpa.qq.com/pa&#63;p=2:123456789:52" alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" title="您的站名"/> 售前咨询</a></li>
   <li><a target="_blank" href="http://wpa.qq.com/msgrd&#63;v=3&uin=123456789&site=qq&menu=yes"><img border="0" src="http://wpa.qq.com/pa&#63;p=2:123456789:52" alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" title="您的站名"/> 售前咨询</a></li>
   <li><a target="_blank" href="http://wpa.qq.com/msgrd&#63;v=3&uin=123456789&site=qq&menu=yes"><img border="0" src="http://wpa.qq.com/pa&#63;p=2:123456789:52" alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" title="您的站名"/> 售前咨询</a></li>
   <li><a target="_blank" href="http://wpa.qq.com/msgrd&#63;v=3&uin=123456789&site=qq&menu=yes"><img border="0" src="http://wpa.qq.com/pa&#63;p=2:123456789:52" alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" title="您的站名"/> 售前咨询</a></li>
   <li><a target="_blank" href="http://wpa.qq.com/msgrd&#63;v=3&uin=123456789&site=qq&menu=yes"><img border="0" src="http://wpa.qq.com/pa&#63;p=2:123456789:52" alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" title="您的站名"/> 售前咨询</a></li>
  </ul>
 </div>
 <div id="bg"><img  src="images/bgbg.png"/ alt="JS implements the animated QQ customer service special effects code displayed from the top drop-down_javascript skills" ></div>
</div>
<div id="btn"><span>联系我们</span></div>
</body>
</html>

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I hope this article will be helpful to everyone in JavaScript programming.