在这个下拉导航栏中,我正在构建如果打开一个下拉列表并且您单击打开第二个,则黑框应该保持可见。当您点击第二个下拉列表时,黑匣子消失,并在下拉列表完全打开后重新出现。
更新
我也注意到在下拉列表打开后显示黑框,它应该同时打开。
我希望这是有道理的,谢谢你的帮助!
$(document).ready(function() {
$(".click").on("click", function(e) {
var menu = $(this);
toggleDropDown(menu);
});
$(document).on('mouseup',function(e) {
var container = $("nav .top-bar-section ul");
// 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) {
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
$(".main-container").removeClass("black-bg");
if ($('a.active').hasClass('active')) {
$('a.active').removeClass('active');
}
});
}
});
});
function toggleDropDown(menu) {
var isActive = $('a.active').length;
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
$(".main-container").removeClass("black-bg");
if (menu.hasClass('active')) {
menu.removeClass('active');
} else {
$('a.active').removeClass('active');
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
$(".main-container").addClass("black-bg");
});
}
});
if (!isActive) {
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
$(".main-container").addClass("black-bg");
});
}
}
* {
box-sizing: border-box;
}
body {
margin: 0;
}
.nav-wrapper {
width: 100%;
overflow: hidden;
background: #424242;
}
nav {
width: 1024px;
margin: auto;
overflow: hidden;
background: #424242;
}
.nav-content {
width: 100%;
z-index: 999;
background: #ccc;
}
.top-bar-section {
float: left;
}
.top-bar-section a.active {
background: #f00;
}
.showup {
display: none;
background: #ccc;
position: absolute;
width: 100%;
top: 70px;
left: 0;
z-index: 99;
padding: 30px 15px 30px 20px;
}
p {
font-size: 14px;
line-height: 1.4;
}
li.nav-item {
display: inline-block;
background: #f5f5f5;
}
li.nav-item a {
display: block;
text-decoration: none;
padding: 10px;
}
.main-container {
width: 80%;
height: 400px;
margin: auto;
}
.black-bg {
background: #000;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="nav-wrapper">
<nav>
<div class="top-bar-section">
<ul>
<li class="nav-item">
<a href="#" class="click">Nav item 1</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 1.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 2</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 2.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 3</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 3.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 4</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 4.
</p>
</div>
</div>
</li>
</ul>
</div>
</nav>
</div>
<div class="main-container">
</div>
答案 0 :(得分:7)
如果您希望在单击菜单后添加black-bg
,则不要在每次点击活动中删除并添加black-bg
课程。如果菜单有active
类,只需添加一次,如果菜单没有active
类,则将其删除。如果您在每次点击活动中删除并添加课程,则black-bg
将首先消失并再次显示。在black-bg
时,下拉列表已打开,然后从$(".main-container").addClass("black-bg");
的回调函数中删除slideDown()
,因为在当前效果完成后执行回调函数。
$(document).ready(function() {
$(".click").on("click", function(e) {
var menu = $(this);
toggleDropDown(menu);
});
$(document).on('mouseup',function(e) {
var container = $("nav .top-bar-section ul");
// 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) {
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
$(".main-container").removeClass("black-bg");
if ($('a.active').hasClass('active')) {
$('a.active').removeClass('active');
}
});
}
});
});
function toggleDropDown(menu) {
var isActive = $('a.active').length;
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
if (menu.hasClass('active')) {
menu.removeClass('active');
$(".main-container").removeClass("black-bg");
} else {
$('a.active').removeClass('active');
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
});
}
});
if (!isActive) {
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500);
$(".main-container").addClass("black-bg");
}
}
&#13;
* {
box-sizing: border-box;
}
body {
margin: 0;
}
.nav-wrapper {
width: 100%;
overflow: hidden;
background: #424242;
}
nav {
width: 1024px;
margin: auto;
overflow: hidden;
background: #424242;
}
.nav-content {
width: 100%;
z-index: 999;
background: #ccc;
}
.top-bar-section {
float: left;
}
.top-bar-section a.active {
background: #f00;
}
.showup {
display: none;
background: #ccc;
position: absolute;
width: 100%;
top: 70px;
left: 0;
z-index: 99;
padding: 30px 15px 30px 20px;
}
p {
font-size: 14px;
line-height: 1.4;
}
li.nav-item {
display: inline-block;
background: #f5f5f5;
}
li.nav-item a {
display: block;
text-decoration: none;
padding: 10px;
}
.main-container {
width: 80%;
height: 400px;
margin: auto;
}
.black-bg {
background: #000;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="nav-wrapper">
<nav>
<div class="top-bar-section">
<ul>
<li class="nav-item">
<a href="#" class="click">Nav item 1</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 1.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 2</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 2.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 3</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 3.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 4</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 4.
</p>
</div>
</div>
</li>
</ul>
</div>
</nav>
</div>
<div class="main-container">
</div>
&#13;
答案 1 :(得分:4)
将$(".main-container").removeClass("black-bg");
移至if (menu.hasClass('active')) {
$(document).ready(function() {
$(".click").on("click", function(e) {
var menu = $(this);
toggleDropDown(menu);
});
$(document).on('mouseup',function(e) {
var container = $("nav .top-bar-section ul");
// 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) {
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
$(".main-container").removeClass("black-bg");
if ($('a.active').hasClass('active')) {
$('a.active').removeClass('active');
}
});
}
});
});
function toggleDropDown(menu) {
var isActive = $('a.active').length;
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
//$(".main-container").removeClass("black-bg"); FROM HERE
if (menu.hasClass('active')) {
menu.removeClass('active');
$(".main-container").removeClass("black-bg"); // TO HERE
} else {
$('a.active').removeClass('active');
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
$(".main-container").addClass("black-bg");
});
}
});
if (!isActive) {
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
$(".main-container").addClass("black-bg");
});
}
}
* {
box-sizing: border-box;
}
body {
margin: 0;
}
.nav-wrapper {
width: 100%;
overflow: hidden;
background: #424242;
}
nav {
width: 1024px;
margin: auto;
overflow: hidden;
background: #424242;
}
.nav-content {
width: 100%;
z-index: 999;
background: #ccc;
}
.top-bar-section {
float: left;
}
.top-bar-section a.active {
background: #f00;
}
.showup {
display: none;
background: #ccc;
position: absolute;
width: 100%;
top: 70px;
left: 0;
z-index: 99;
padding: 30px 15px 30px 20px;
}
p {
font-size: 14px;
line-height: 1.4;
}
li.nav-item {
display: inline-block;
background: #f5f5f5;
}
li.nav-item a {
display: block;
text-decoration: none;
padding: 10px;
}
.main-container {
width: 80%;
height: 400px;
margin: auto;
}
.black-bg {
background: #000;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="nav-wrapper">
<nav>
<div class="top-bar-section">
<ul>
<li class="nav-item">
<a href="#" class="click">Nav item 1</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 1.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 2</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 2.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 3</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 3.
</p>
</div>
</div>
</li>
<li class="nav-item">
<a href="#" class="click">Nav item 4</a>
<div class="showup">
<div class="nav-content">
<p>
Dropdown for Nav Item 4.
</p>
</div>
</div>
</li>
</ul>
</div>
</nav>
</div>
<div class="main-container">
</div>
答案 2 :(得分:3)
这是你在找什么?
$(document).ready(function() {
$(".click").on("click", function(e) {
var menu = $(this);
toggleDropDown(menu);
});
$(document).on('mouseup',function(e) {
var container = $("nav .top-bar-section ul");
// 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) {
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
$(".main-container").removeClass("black-bg");
if ($('a.active').hasClass('active')) {
$('a.active').removeClass('active');
}
});
}
});
});
function toggleDropDown(menu) {
var isActive = $('a.active').length;
$('a.active').parent().find('.showup').stop(true, true).slideUp(500, function() {
if (menu.hasClass('active')) {
menu.removeClass('active');
} else {
$('a.active').removeClass('active');
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
$(".main-container").addClass("black-bg");
});
}
});
if (!isActive) {
menu.addClass('active');
menu.parent().find('.showup').stop(true, true).slideDown(500, function() {
$(".main-container").addClass("black-bg");
});
}
在这种情况下,黑匣子将保留在那里。你之前做的是你明确删除了黑盒子。