Bootstrap CSS Active Navigation
On the Bootstrap website the subnav matches up with the sections and changes background color as you or scroll to the section. I wanted to create my own menu without all the background colors and everything, however, I changed my CSS to be similar but when I scroll down or click on the menu item the active class does not switch. Not sure what I'm doing wrong.
HTML:
<ul class="menu">
<li><a href="#" aria-current="page">Home</a></li>
<li><a href="#about">About Us</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
CSS:
.menu {
list-style:none;
}
.menu > li {
float: left;
}
.menu > li > a {
color: #555;
float: none;
padding: 10px 16px 11px;
display: block;
}
.menu > li > a:hover {
color: #F95700;
}
.menu a[aria-current="page"],
.menu a[aria-current="page"]:hover {
color:#F95700;
}
I checked the files; jQuery, bootstrap.js and bootstrap.css are all linked properly. Do I have to add some additional jQuery in or am I missing some CSS to get the active to switch like the subnav menu on their site?
This is what I ended up with since you have to clear the others as well.
$('.navbar li').click(function(e) {
$('.navbar li.active').removeClass('active');
var $this = $(this);
if (!$this.hasClass('active')) {
$this.addClass('active');
}
e.preventDefault();
});
In order to switch the class, you need to perform some JavaScript.
In jQuery:
$('.menu li a').click(function(e) {
var $this = $(this);
if (!$this.hasClass('active')) {
$this.addClass('active');
}
e.preventDefault();
});
In JavaScript:
var menu = document.querySelector('.menu');
var anchors = menu.getElementsByTagName('a');
for (var i = 0; i < anchors.length; i += 1) {
anchors[i].addEventListener('click', function() { clickHandler(anchors[i]) }, false);
}
function clickHandler(anchor) {
var hasClass = anchor.getAttribute('class');
if (hasClass !== 'active') {
anchor.setAttribute('class', 'active');
}
}
I hope this helps.
this is my code for handling twitter bootstrap navigation list:
$(document).ready(function () {
$('ul.nav > li').click(function (e) {
e.preventDefault();
$('ul.nav > li').removeClass('active');
$(this).addClass('active');
});
});
I use 2 1-liners, depending on how my nav is structured
Just make sure that none of your links have active class to start.
actual links
If your nav links are on separate HTML files (like a layout template in express.js that has a menu), you can do this:
$('ul.nav > li > a[href="' + document.location.pathname + '"]').parent().addClass('active');
hash links
If they are hashes, do this:
$('ul.nav > li > a[href="' + document.location.hash + '"]').click(function(){ $('ul.nav > li').removeClass('active'); $(this).parent().addClass('active'); });
If you don't want to scroll on hash-click, return false:
$('ul.nav > li > a[href="' + document.location.hash + '"]').click(function(){ $('ul.nav > li').removeClass('active'); $(this).parent().addClass('active'); return false; });