樹形菜單
<!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" />
<script src="http://www.jq22.com/jquery/jquery-1.10.2.js"></script>
<title>JS無級樹樹形菜單</title>
<style type="text/css">
.menuTree{ margin-left:0px;}
.menuTree div{ padding-left:1px;}
.menuTree div ul{ overflow:hidden; display:none; height:auto; margin:0;}
.menuTree span{ display:block; height:20px; line-height:25px; padding-left:5px; margin:1px 0; cursor:pointer; border-bottom:1px solid #CCC;}
.menuTree span:hover{ background-color:#e6e6e6; color:#cf0404;}
.menuTree a{ color:#333; text-decoration:none;}
.menuTree a:hover{ color:#06F;}
.menuTree span{height: 50px;}
</style>
</head>
<body>
<div id="menuTree" class="menuTree"></div>
</body>
</html>
<script type="text/javascript">
var json = [
{
"name": "1",
"userLevel":"+ 一級",
"list": [
{
//顯示名稱
"name": "2",
//跳轉名稱
"url" :"url_herf",
//用戶等級
"userLevel":"+ 二級",
//下級
"list": [
{
"name": "3",
"userLevel":"三級"
}
]
}
]
},
{
"name": "1",
"userLevel":"+ a一級",
"list": [
{
//顯示名稱
"name": "2",
//跳轉名稱
"url" :"url_herf",
//用戶等級
"userLevel":"+ b二級",
//下級
"list": [
{
"name": "3",
"userLevel":"c三級"
}
]
}
]
}
]
/*遞歸實現獲取無級樹數據並生成DOM結構*/
var str = "";
var forTree = function(o){
for(var i=0;i<o.length;i++){
var urlstr = "";
try{
if(typeof o[i]["url"] == "undefined"){
urlstr = "<div><span>"+o[i]["userLevel"]+ o[i]["name"] +"</span><ul>";
}else{
urlstr = "<div><span>"+o[i]["userLevel"]+"<a href="+ o[i]["url"] +">"+ o[i]["name"] +"</a></span><ul>";
}
str += urlstr;
if(o[i]["list"] != null){
forTree(o[i]["list"]);
}
str += "</ul></div>";
}catch(e){}
}
return str;
}
/*添加無級樹*/
document.getElementById("menuTree").innerHTML = forTree(json);
/*樹形菜單*/
var menuTree = function(){
//給有子對象的元素加
$("#menuTree ul").each(function(index, element) {
var ulContent = $(element).html();
var spanContent = $(element).siblings("span").html();
if(ulContent){
$(element).siblings("span").html(spanContent)
}
});
$("#menuTree").find("div span").click(function(){
var ul = $(this).siblings("ul");
var spanStr = $(this).html();
var spanContent = spanStr.substr(3,spanStr.length);
if(ul.find("div").html() != null){
if(ul.css("display") == "none"){
ul.show(300);
// $(this).html("[-]" + spanContent);
}else{
ul.hide(300);
// $(this).html("[+] " + spanContent);
}
}
})
}()
/*樹形列表展開*/
$("#btn_open").click(function(){
$("#menuTree ul").show(300);
curzt("-");
})
/*收縮*/
$("#btn_close").click(function(){
$("#menuTree ul").hide(300);
curzt("+");
})
function curzt(v){
$("#menuTree span").each(function(index, element) {
var ul = $(this).siblings("ul");
var spanStr = $(this).html();
var spanContent = spanStr.substr(3,spanStr.length);
if(ul.find("div").html() != null){
$(this).html("["+ v +"] " + spanContent);
}
});
}
</script>