如何通过JS实现响应鼠标点击动画渐变弹出层效果?

如何通过JS实现响应鼠标点击动画渐变弹出层效果?

本文实例讲述了JS实现响应鼠标点击动画渐变弹出层效果。分享给大家供大家参考,具体如下:

<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>动画弹出层</title>
<style>
.list{
 position:relative;;
 background:#eee;
 border:1px #ccc solid;
 margin:10px;
 height:30px;
 width:100px;
 cursor :pointer ;
}
.listShow{
 position:relative;
 background:#eff;
 border:1px #ddd solid;
 margin:10px;
 height:30px;
 width:100px;
 cursor :pointer ;
}
.comment{
 position:absolute;
 left:0;
 display:none;
 position:absolute;
 border:1px #ccc solid;
 background:#fee;
 width:200px;
 height:200px;
 overflow:hidden;
 z-index:100;
}
</style>
</head>
<body>
<div class="" id="show">
0
</div>
<div class="list" id="list1">1
 <div class="comment" id="comment1">路饭<br/>
</div>
<div class="list" id="list2">2
 <div class="comment" id="comment2">新浪搜狐</div>
</div>
<div class="list" id="list3">3
 <div class="comment" id="comment3">网页特效</div>
</div>
</body>
</html>
<script>
 var zindex=0;
 function $id(id){
 return document.getElementById(id);
 }
 var Bind = function(object,fun){
 var args = Array.prototype.slice.call(arguments).slice(2);
 return function(){
 return fun.apply(object,args);
 }
 }
 function addEventHandler(oTarget, sEventType, fnHandler){
 if(oTarget.addEventListener){oTarget.addEventListener(sEventType, fnHandler, false);}
 else if(oTarget.attachEvent){oTarget.attachEvent('on' + sEventType, fnHandler);}
 else{oTarget['on' + sEventType] = fnHandler;}
 }
 var Shower=function(){
 this.list=null;
 this.comment=null;
 this.moveLeft=80;
 this.moveTop=20;
 this.height=150;
 this.width=250;
 this.time=800;
 this.init=function(lisObj,comObj){
 this.list=lisObj;
 this.comment=comObj;
 var _this=this;
 this._fnMove=Bind(this,this.move);
 (function(){
 var obj=_this;
 addEventHandler(obj.list,"click",obj._fnMove);
 })();
 };
 this.move=function(){
 var _this=this;
 var w=0;
 var h=0;
 var height=0; //弹出div的高
 var width=0; //弹出div的宽
 var t=0;
 var startTime = new Date().getTime();//开始执行的时间
 if(!_this.comment.style.display||_this.comment.style.display=="none"){
  _this.comment.style.display="block";
  _this.comment.style.height=0+"px";
  _this.comment.style.width=0+"px";
  _this.list.style.zIndex=++zindex;
  _this.list.className="listShow";
  var comment=_this.comment.innerHTML;
  _this.comment.innerHTML=""; //去掉显示内容
  var timer=setInterval(function(){
  var newTime = new Date().getTime();
  var timestamp = newTime - startTime;
  _this.comment.style.left=Math.ceil(w)+"px";
  _this.comment.style.top=Math.ceil(h)+"px";
  _this.comment.style.height=height+"px";
  _this.comment.style.width=width+"px";
  t++;
 var change=(Math.pow((timestamp/_this.time-1), 3) +1); //根据运行时间得到基础变化量
  w=_this.moveLeft*change;
  h=_this.moveTop*change;
  height=_this.height*change;
  width=_this.width*change;
  $id("show").innerHTML=w;
  if(w>_this.moveLeft){
clearInterval(timer);
_this.comment.style.left=_this.moveLeft+"px";
_this.comment.style.top=_this.moveTop+"px";
_this.comment.style.height=_this.height+"px";
_this.comment.style.width=_this.width+"px";
_this.comment.innerHTML=comment; //回复显示内容
}
},1,_this.comment);
 }else{
  _this.hidden();
 }
}
this.hidden=function(){
 var _this=this;
 var flag=1;
 var hiddenTimer=setInterval(function(){
 if(flag==1){
 _this.comment.style.height=parseInt(_this.comment.style.height)-10+"px";
 }else{  _this.comment.style.width=parseInt(_this.comment.style.width)-15+"px";
 _this.comment.style.left=parseInt(_this.comment.style.left)+5+"px";
 }
 if(flag==1 && parseInt(_this.comment.style.height)<10){
 flag=-flag;
 }
  if(parseInt(_this.comment.style.width)<20){
  clearInterval(hiddenTimer);
  _this.comment.style.left="0px";
  _this.comment.style.top="0px";
  _this.comment.style.height="0px";
  _this.comment.style.width="0px";
  _this.comment.style.display="none";
  if(_this.list.style.zIndex==zindex){
  zindex--;
  };
  _this.list.style.zIndex=0;
  _this.list.className="list";
  }
 },1)
 }
 }
 window.onload=function(){
 //建立各个菜单对象
 var shower1=new Shower();
 shower1.init($id("list1"),$id("comment1"));
 var shower2=new Shower();
 shower2.init($id("list2"),$id("comment2"));
 var shower3=new Shower();
 shower3.init($id("list3"),$id("comment3"));
 }
</script>

希望本文所述对大家JavaScript程序设计有所帮助。