This software is maintained under a new repository located at yowainwright/scrolldir
Leverage Vertical Scroll Direction with CSS 馃槑
ScrollDir, short for Scroll Direction, is a 0 dependency, ~1kb micro Javascript plugin to easily leverage vertical scroll direction in CSS via a data attribute. 馃挭
- showing or hiding sticky elements based on scroll direction 馃惀
- only changing its direction attribute when scrolled a significant amount 馃敟
- ignoring small scroll movements that cause unwanted jitters 馃槑
ScrollDir will set the data-scrolldir attribute on the <html> element to up or down:
<html data-scrolldir="up">or
<html data-scrolldir="down">Now it鈥檚 easy to change styles based on the direction the user is scrolling!
[data-scrolldir="down"] .my-fixed-header { display: none; }
npm
npm install scrolldir --savebower
bower install scrolldir --saveyarn
yarn add scrolldirAdd dist/scrolldir.auto.min.js and you鈥檙e done. There is nothing more to do! Scrolldir will just work.
Now go write some styles using [data-scrolldir="down"] and [data-scrolldir="up"].
Add dist/scrolldir.min.js. You have access to the API options below and must invoke scrollDir.
scrollDir();To use an attribute besides data-scrolldir:
scrollDir({ attribute: 'new-attribute-name' });To add the Scrolldir attribute to a different element:
scrollDir({ el: 'your-new-selector' });To turn Scrolldir off:
scrollDir({ off: true });To turn provide a different scroll direction on page load (or app start):
scrollDir({ dir: 'up' }); // the default is 'down'To change the thresholdPixels鈥攖he number of pixels to scroll before re-evaluating the direction:
scrollDir({ thresholdPixels: someNumber }); // the default is 64 pixels
// example: scrollDir({ thresholdPixels: 10 })- scrolldir on codepen.
This is a modular version of pwfisher's scroll-intent. If you'd like to use scrolldir with jQuery鈥攗se Scroll Intent. Scrolldir should work easily within any front-end framework so it ditches library dependencies. ~TY!