javascript仿qq可折叠菜单

本文主要是介绍javascript仿qq可折叠菜单，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

最近一直在研究网页特效,看到qq界面的折叠菜单,于是冒出个想法,自己写一个类似的,上网查了一下,发现已经有不少类似的菜单效果,不管那么多,先写着再说吧.

以下是html结构:

<div id="a"><div id="h1">sdfds</div><div id="b1">dsfdsfsdfsd</div><div id="h2">dsf</div><div id="b2">dsfdsfsdf</div>.......................</div>

id为a里的便是你要添加的菜单的标题和内容.

下面是javascript代码:

sx.activex.packmenu={ create:function(t){ var a=document.createElement("div"); var _t=t; a.style.height="300px"; a.style.width="150px"; a.style.border="1px red solid"; a.style.overflow="hidden"; for(var i=0;i<t.length;i++){ var h=document.createElement("div"); var b=document.createElement("div");; h.style.backgroundColor="blue"; h.style.height="10%"; b.style.padding="5px"; b.style.textAlign="center"; b.style.border="1px green solid"; h.innerHTML=t[i][0]; b.innerHTML=t[i][1]; b.style.overflow="hidden"; b.style.height="0px"; b.style.display="none"; h.οnclick=function(){ if(this.nextSibling.style.display=="none"){ this.nextSibling.style.height="1px"; this.nextSibling.style.display="block"; this.h=window.setInterval(function(t,t1){ return function(){ if(!t1) return; //alert(t.nextSibling.offsetHeight); if(parseInt(t.nextSibling.style.height)<100-_t.length*parseInt(a.all[0].style.height)-3){ t.nextSibling.style.height=parseInt(t.nextSibling.style.height)+3+"%"; t1.style.height=parseInt(t1.style.height)-3+"%"; } else{ t.nextSibling.style.height=100-_t.length*parseInt(a.all[0].style.height)+"%";; t1.style.display="none"; t1.style.height="0px"; window.clearInterval(t.h); } } }(this,(function(){ for(var ii=0;ii<a.all.length;ii++){ if(parseInt(a.all[ii].style.height)>10) return a.all[ii]; } })()),10); } else{ if(this!=this.parentNode.firstChild){ this.previousSibling.style.height="1px"; this.previousSibling.style.display="block"; } else{ this.parentNode.lastChild.style.display="block"; this.parentNode.lastChild.style.height="1px"; } this.h=window.setInterval(function(t,t1){ return function(){ if(!t1) return; if(parseInt(t.nextSibling.style.height)>3){ if(t!=t.parentNode.firstChild) t.previousSibling.style.height=parseInt(t.previousSibling.style.height)+3+"%"; else t.parentNode.lastChild.style.height=parseInt(t.parentNode.lastChild.style.height)+3+"%"; t1.style.height=parseInt(t1.style.height)-3+"%"; } else{ if(t!=t.parentNode.firstChild) t.previousSibling.style.height=100-_t.length*parseInt(a.all[0].style.height)+"%"; else t.parentNode.lastChild.style.height=100-_t.length*parseInt(a.all[0].style.height)+"%"; t.nextSibling.style.display="none"; t.nextSibling.style.height="0px"; window.clearInterval(t.h); } } }(this,(function(){ for(var ii=0;ii<a.all.length;ii++){ if(parseInt(a.all[ii].style.height)>10) return a.all[ii]; } })()),1); } } a.appendChild(h); a.appendChild(b); a.all[1].style.display="block"; a.all[1].style.height=100-t.length*parseInt(a.all[0].style.height)+"%"; } return a; } }

入口参数t是你要传递的二维数组,以一个标题加内容为一个数组项的形式:

下面是调用代码:

<html>
    <head>
        <title>Untitled Document</title>
    </head>
    <body>

        <script src="kongjian.js" ></script>

        <script>
            var a=sx.activex.packmenu.create([["asd","sadsadas"],["sd","sadsaas"],["w","waedqwdq"],["e","efwefw"]]);
            //a.contentEditable=true;
            document.body.appendChild(a);

</script>
    </body>
</html>