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jquery智能彈出層,自己主動推斷位置

大家好,又見面了,我是全棧君。

<!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>jquery彈出層浮動層代碼</title>

<script src=”/ajaxjs/jquery1.3.2.js” type=”text/javascript”></script>

<style>

*{ margin:0; padding:0}

body{ margin:0; padding:0; font-size:12px}

ul,li{ list-style:none}

ul{position:relative;top:-3px; left:-3px;border:1px solid #ccc; background:#fff;}

li{height:23px;line-height:23px;cursor:default; padding:0 0 0 10px}

li.current{background:#eee}

.wrap{ width:158px; background:#eee; position:absolute;}

</style>

<script type=”text/javascript”>

$(function(){

$(“.wrap”).hide();

var objW=$(“.wrap”).width();

var objH=$(“.wrap”).height();

$(document).mousedown(function(e){

var selfX=objW+e.pageX;

var selfY=objH+e.pageY

var bodyW=document.documentElement.clientWidth+document.documentElement.scrollLeft;

var bodyH=document.documentElement.clientHeight+document.documentElement.scrollTop;

if(selfX>bodyW && selfY>bodyH){

$(“.wrap”).css({top:(bodyH-objH),left:(bodyW-objW)}).show();

}else if(selfY>bodyH){

$(“.wrap”).css({top:(bodyH-objH),left:e.pageX}).show();

}else if(selfX>bodyW){

$(“.wrap”).css({top:e.pageY,left:(bodyW-objW)}).show();

}else{

$(“.wrap”).css({top:e.pageY,left:e.pageX}).show();

}

})

$(“li”).hover(function(){

$(this).addClass(“current”);

},function(){

$(this).removeClass(“current”);

}).click(function(){

alert($(this).text())

$(this).parent().parent().hide();

})

})

</script>

</head>

<body>

<div style=”height:800px;width:900px”>&nbsp;</div>

<div style=”position:absolute;top:300px;left:300px”><span style=”color:#f00;font-size:28px”>請按F5重新整理,才幹看到效果。</span><br>點選滑鼠左鍵,彈出層,<br>在最右邊點選時

層自己主動往左移</div>

<div class=”wrap”>

<ul onmousedown=”event.cancelBubble = true”>

<li>連江</li>

<li>甯德</li>

<li>福州</li>

<li>廈門</li>

<li>北京</li>

</ul>

</div>

<div><A href=”http://www.999jiujiu.com/”>

http://www.999jiujiu.com/</A></div>

</body>

</html>

釋出者:全棧程式員棧長,轉載請注明出處:https://javaforall.cn/115235.html原文連結:https://javaforall.cn