【发布时间】：2016-01-29 21:20:23
【问题描述】：
我正在创建的这个菜单的一切都很完美，除了一件事。单击主导航项并打开子菜单时，关闭子菜单的唯一方法是再次单击相同的主导航项。我想这样做，如果用户单击主弹出窗口中的其他任何位置，子菜单将关闭。
请参阅下面的代码 sn-p 了解我的确切代码：
<!doctype html>
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7" lang=""> <![endif]-->
<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8" lang=""> <![endif]-->
<!--[if IE 8]> <html class="no-js lt-ie9" lang=""> <![endif]-->
<!--[if gt IE 8]><!-->
<html class="no-js" lang="">
<!--<![endif]-->
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title></title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<style>
body {
padding-top: 50px;
padding-bottom: 20px;
}
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.3/modernizr.min.js"></script>
</head>
<body>
<!--[if lt IE 8]>
<p class="browserupgrade">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> to improve your experience.</p>
<![endif]-->
<!--MAIN CONTENT GOES HERE -->
<style>
/* main menu */
.mainNav {
margin: 0;
padding: 0;
min-height: 100px;
text-align: left;
white-space: normal;
width: 368px;
display: block;
cursor: default;
}
.mainNav-item {
display: inline-block;
vertical-align: top;
}
.mainNav-item a {
text-decoration: none;
color: black;
}
.mainNav-item a:hover {
text-decoration: none;
color: black;
}
.mainNav-item-tile {
display: block;
margin: 6px 5px 6px 5px;
padding: 0;
text-align: center;
line-height: normal;
position: relative;
text-decoration: none;
width: 110px;
height: 110px;
background: transparent;
border-width: 0;
font-size: 14px;
outline-color: #e7e7e7;
background-color: #e7e7e7;
}
.mainNav-item-tile:hover {
outline-color: #ccc;
background-color: #ccc;
}
.mainNav-item-tile-img {
display: block;
padding: 15px;
margin-left: auto;
margin-right: auto;
}
.popover {
max-width: 600px;
width: auto;
}
/* The container <div> - needed to position the dropdown content */
.dropdown {
position: relative;
display: inline-block;
}
/* Dropdown Content (Hidden by Default) */
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1000;
left: 80px;
top: 20px;
}
/* Links inside the dropdown */
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
/* Change color of dropdown links on hover */
.dropdown-content a:hover {
background-color: #f1f1f1
}
</style>
<div style="float: left; cursor: pointer; margin: 13px 15px 0 0">
<img data-toggle="popover" data-placement="bottom" onmouseover="this.src='http://placehold.it/32x32'" onmousedown="this.src='http://placehold.it/32x32'" onmouseout="this.src='http://placehold.it/32x32'" src="http://placehold.it/32x32" />
<div id="popover_content_wrapper" style="display: none;">
<div>
<ul class="mainNav">
<li class="mainNav-item dropdown" data-toggle="popover" data-placement="bottom">
<a ID="navItem" runat="server" class="mainNav-item-tile">
<img width="64" height="64" src="http://placehold.it/64x64" class="mainNav-item-tile-img" />
<span>MainMenuItem1</span>
</a>
<div id='content1' class='dropdown-content'>
<a href='#'>SubMenuItem1</a>
<a href='#'>SubMenuItem2</a>
</div>
</li>
<li class="mainNav-item dropdown" data-toggle="popover" data-placement="bottom">
<a ID="navItem" runat="server" class="mainNav-item-tile">
<img width="64" height="64" src="http://placehold.it/64x64" class="mainNav-item-tile-img" />
<span>MainMenuItem2</span>
</a>
<div id='content2' class='dropdown-content'>
<a href='#'>SubMenuItem1</a>
<a href='#'>SubMenuItem2</a>
</div>
</li>
<li class="mainNav-item dropdown" data-toggle="popover" data-placement="bottom">
<a ID="navItem" runat="server" class="mainNav-item-tile">
<img width="64" height="64" src="http://placehold.it/64x64" class="mainNav-item-tile-img" />
<span>MainMenuItem3</span>
</a>
<div id='content3' class='dropdown-content'>
<a href='#'>SubMenuItem1</a>
<a href='#'>SubMenuItem2</a>
</div>
</li>
<li class="mainNav-item dropdown" data-toggle="popover" data-placement="bottom">
<a ID="navItem" runat="server" class="mainNav-item-tile">
<img width="64" height="64" src="http://placehold.it/64x64" class="mainNav-item-tile-img" />
<span>MainMenuItem4</span>
</a>
<div id='content4' class='dropdown-content'>
<a href='#'>SubMenuItem1</a>
<a href='#'>SubMenuItem2</a>
</div>
</li>
<li class="mainNav-item dropdown" data-toggle="popover" data-placement="bottom">
<a ID="navItem" runat="server" class="mainNav-item-tile">
<img width="64" height="64" src="http://placehold.it/64x64" class="mainNav-item-tile-img" />
<span>MainMenuItem5</span>
</a>
<div id='content5' class='dropdown-content'>
<a href='#'>SubMenuItem1</a>
<a href='#'>SubMenuItem2</a>
</div>
</li>
</ul>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('[data-toggle="popover"]').popover({
html: true,
content: function () {
return $('#popover_content_wrapper').html();
}
});
$('html').on('click', function (e) {
$('[data-toggle="popover"]').each(function () {
//the 'is' for buttons that trigger popups
//the 'has' for icons within a button that triggers a popup
if (!$(this).is(e.target) && $(this).has(e.target).length === 0 && $('.popover').has(e.target).length === 0) {
$(this).popover('hide');
}
});
});
$("html").on("click", ".dropdown", function (e) {
var $this = $(this).children(".dropdown-content");
if ($this.find("a").length > 0) {
e.preventDefault();
$(".dropdown-content:visible").not($this).slideToggle(200); //Close submenu already opened
$this.slideToggle(200); //Open the new submenu
}
});
});
</script>
</body>
</html>【问题讨论】：
-
在小提琴中设置它，比如 jsfiddle.org 并发布链接
-
那么你想点击包含五个项目的菜单中的空白区域并能够关闭弹出框吗？
标签： javascript jquery html css twitter-bootstrap