Description
The hide on scroll option use to hide your fixed top or bottom navbar on page scroll down, once you scroll up again it will be visible. In this page you can experience it.
This table contains all classes related to the fixed top or bottom navbar with hide on scroll.
All these options can be set via following classes:
| Classes | Description |
|---|---|
.navbar-hide-on-scroll |
To set navbar hide on scroll you need to add .navbar-hide-on-scroll class in navbar <nav> tag. Refer HTML markup line no 7. |
.fixed-top |
To hide on scroll you need to set navbar fixed also, add fixed navbar in top .fixed-top class in navbar <nav> tag. Refer HTML markup line no 7. |
.fixed-bottom |
Tohide on scroll you need to set navbar fixed also, add fixed navbar in bottom .fixed-bottom class in navbar <nav> tag. Refer HTML markup line no 7. |
This section contains HTML Markup to set navbar hide on scroll. This markup define where to add css classes to make navbar hide on scroll.
- Line no 7: Contain the
.navbar-hide-on-scrollclass to make navbar hide on scroll. - Line no 7: Contain the
.fixed-topor.fixed-bottomclass for adjusting navbar fixed on top.
Stack has a ready to use starter kit, you can use this layout directly by using the starter kit pages from the stack-admin/starter-kit folder.
<!DOCTYPE html>
<html lang="en">
<head></head>
<body data-menu="vertical-menu" class="vertical-layout vertical-menu 2-column menu-expanded">
<!-- navbar-hide-on-scroll-->
<nav role="navigation" class="header-navbar navbar-expand-sm navbar navbar-with-menu navbar-hide-on-scroll fixed-top navbar-dark navbar-shadow navbar-border">
...
</nav>
<!-- BEGIN Navigation-->
<div class="main-menu menu-dark menu-shadow">
...
</div>
<!-- END Navigation-->
<!-- BEGIN Content-->
<div class="content app-content">
<div class="content-wrapper">
<!-- content header-->
<div class="content-header row">
...
</div>
<!-- content header-->
<!-- content right-->
<div class="content-right">
...
</div>
<!-- content right-->
</div>
</div>
<!-- END Content-->
<!-- START FOOTER DARK-->
<footer class="footer footer-dark">
...
</footer>
<!-- START FOOTER DARK-->
</body>
</html>
Stack Admin use headroom.js to functionate navbar hide on scroll. You need to use the following headroom.js configurations code for customization. File app.js has the following code for customization.
Plugin overview
Headroom.js is a lightweight, high-performance JS widget (with no dependencies!) that allows you to react to the user's scroll. The header on this site is a living example, it slides out of view when scrolling down and slides back in when scrolling up.
Plugin options
Headroom.js can also accept an options object to alter the way it behaves. You can see the default options by inspecting Headroom.options. The structure of an options object is as follows:
{
// vertical offset in px before element is first unpinned
offset : 0,
// scroll tolerance in px before state changes
tolerance : 0,
// or you can specify tolerance individually for up/down scroll
tolerance : {
up : 5,
down : 0
},
// css classes to apply
classes : {
// when element is initialised
initial : "headroom",
// when scrolling up
pinned : "headroom--pinned",
// when scrolling down
unpinned : "headroom--unpinned",
// when above offset
top : "headroom--top",
// when below offset
notTop : "headroom--not-top",
// when at bottom of scroll area
bottom : "headroom--bottom",
// when not at bottom of scroll area
notBottom : "headroom--not-bottom"
},
// element to listen to scroll events on, defaults to `window`
scroller : someElement,
// callback when pinned, `this` is headroom object
onPin : function() {},
// callback when unpinned, `this` is headroom object
onUnpin : function() {},
// callback when above offset, `this` is headroom object
onTop : function() {},
// callback when below offset, `this` is headroom object
onNotTop : function() {},
// callback when at bottom of page, `this` is headroom object
onBottom : function() {},
// callback when moving away from bottom of page, `this` is headroom object
onNotBottom : function() {}
}
| Options | Data type | Description |
|---|---|---|
offset |
Number | Vertical offset in px before element is first unpinned. |
tolerance |
Number | Scroll tolerance in px before state changes,or you can specify tolerance individually for up/down scroll. |
initial |
String | When element is initialised this class will be applied. |
pinned |
String | when scrolling up, this class will be applied. |
unpinned |
String | When scrolling down, this class will be applied. |
Top |
String | When above offset, this class will be applied. |
notTop |
String | When below offset, this class will be applied. |
bottom |
String | When at bottom of scroll area, this class will be applied. |
notBottom |
String | When not at bottom of scroll area, this class will be applied. |
scroller |
Element to listen to scroll events on, defaults to `window`. | |
onPin |
function | Callback when pinned, `this` is headroom object. |
onUnpin |
function | Callback when unpinned, `this` is headroom object. |
onTop |
function | Callback when above offset, `this` is headroom object. |
onNotTop |
function | Callback when below offset, `this` is headroom object. |
onBottom |
function | Callback when at bottom of page, `this` is headroom object. |
onNotBottom |
function | Callback when moving away from bottom of page, `this` is headroom object. |
In Stack Admin we have just used following headroom.js configurations options in js/code/app.js
Top navbar position example:
// Top Navbars - Hide on Scroll
$(".navbar-hide-on-scroll.fixed-top").headroom({
"offset": 205,
"tolerance": 5,
"classes": {
// when element is initialised
initial : "headroom",
// when scrolling up
pinned : "headroom--pinned-top",
// when scrolling down
unpinned : "headroom--unpinned-top",
}
});
Bottom navbar position example:
// Bottom Navbars - Hide on Scroll
$(".navbar-hide-on-scroll.fixed-bottom").headroom({
"offset": 205,
"tolerance": 5,
"classes": {
// when element is initialised
initial : "headroom",
// when scrolling up
pinned : "headroom--pinned-bottom",
// when scrolling down
unpinned : "headroom--unpinned-bottom",
}
});