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我正在尝试为即插即用 Mega-Menu
开发代码。我发现使用 collapse 方法似乎对此非常有效。
我仍然想弄清楚如何在菜单外单击时关闭折叠的元素。我是 Javascript 的初学者,所以使用 jquery 有点挑战。
编辑:最近我遇到了一段更好的代码,它不是 Javascript 和 JQuery 的混合体。我尝试应用它,但仍然无法弄清楚如何正确定位 .collapse()
方法。
下面的小部件还有一些其他问题,不确定它是否与我的代码有关,因为我之前遇到过错误显示信息的问题。试试这个 JSfiddle .
JQuery(已编辑):
$(document).mouseup(function(e) {
var container = $("#mega-menu");
// if the target of the click isn't the container nor a descendant of the container
if (!container.is(e.target) && container.has(e.target).length === 0) {
//alert("hi");
container.collapse();
//$('.collapse').collapse()
}
代码:
.dropdown-mega-menu {
position: absolute;
top: 100%;
left: 0;
right: 0;
width: 100%;
display: -ms-flexbox;
display: flex;
-ms-flex-direction: column;
flex-direction: column;
min-width: 0;
word-wrap: break-word;
background-color: #fff;
background-clip: border-box;
border: 1px solid rgba(0, 0, 0, .125);
padding: 1rem;
border-radius: 0;
}
.mega-menu-toggle {
cursor: pointer;
}
.mega-menu-toggle::after {
display: inline-block;
width: 0;
height: 0;
margin-left: .255em;
vertical-align: .255em;
content: "";
border-top: .3em solid;
border-right: .3em solid transparent;
border-bottom: 0;
border-left: .3em solid transparent;
}
@media (max-width: 767px) {
.dropdown-mega-menu {
position: static;
}
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
<!-- Navigation -->
<nav class="navbar navbar-light bg-light navbar-expand-md sticky-top">
<div class="container">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse multi-collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link mega-menu-toggle" data-toggle="collapse" data-target="#mega-menu" role="button" aria-expanded="false" aria-controls="mega-menu">Dropdown link</a>
<div class="dropdown-mega-menu collapse multi-collapse" id="mega-menu">
<h3>Heading</h3>
<div class="row">
<div class="col-md">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Action</a>
</div>
<div class="col-md">
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Another action</a>
</div>
<div class="col-md">
<div>
Other none linked content.
</div>
</div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
最佳答案
经过进一步调查,我相信我错误地使用了折叠方法。使用现有的 JQuery 并添加 collapse('hide')
似乎可以完成这项工作:
$(document).mouseup(function(e)
{
var container = $("#mega-menu");
// if the target of the click isn't the container nor a descendant of the container
if (!container.is(e.target) && container.has(e.target).length === 0)
{
container.collapse('hide');
}
});
关于javascript - Bootstrap v4.1 : Closing a collapse menu when clicking outside of div,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/50359249/
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