import { useEffect } from '../lib/teact/teact'; export default (container: HTMLElement | null, isDisabled?: boolean) => { useEffect(() => { if (!container) { return undefined; } function handleScroll(e: WheelEvent) { // Ignore horizontal scroll and let it work natively (e.g. on touchpad) if (!e.deltaX) { container!.scrollLeft += e.deltaY / 4; } } container.addEventListener('wheel', handleScroll, { passive: true }); return () => { container.removeEventListener('wheel', handleScroll); }; }, [container, isDisabled]); };