ProperJS // ScrollController

Overkill scroll handling for professionals.

Installation

npm i properjs-scrollcontroller --save-dev

Usage

ScrollController doesn't use any native window or document event binding for scroll handling. Rather, it uses requestAnimationFrame and supplies extra nifty scroll events for more control.

import ScrollController from "properjs-scrollcontroller";
 
// Window scroll handling (RAF)
const winScroll = new ScrollController();
 
winScroll.on( "idle", ( scrollY ) => {
    console.log( "window idle", scrollY );
});
 
winScroll.on( "scroll", ( scrollY ) => {
    console.log( "window scroll", scrollY );
});
 
winScroll.on( "scrolldown", ( scrollY ) => {
    console.log( "window scrolldown", scrollY );
});
 
winScroll.on( "scrollup", ( scrollY ) => {
    console.log( "window scrollup", scrollY );
});
 
winScroll.on( "scrollmin", ( scrollY ) => {
    console.log( "window scrollmin", scrollY );
});
 
winScroll.on( "scrollmax", ( scrollY ) => {
    console.log( "window scrollmax", scrollY );
});
 
// Inline element scroll handling (RAF)
const divScroll = new ScrollController( document.getElementById( "test" ) );
 
// All the same evens apply for inline elements as document (window) scroll
divScroll.on( "scroll", ( scrollY ) => {
    console.log( "div scroll", scrollY );
});