One item per view: a full-width slider from the same menu
min-width: 100% on the library’s item wrapper — turns the same component into a slider: every card fills the view, and the ordinary paging arrows advance exactly one item.Page with the arrows — each slide is exactly one view wide, and each slide reports its own visibility.
Edit this example live in Storybook
How it works
The story wraps the menu in a styled container targeting .react-horizontal-scrolling-menu--item — the div the library renders around every child — and gives it minWidth: ’100%’ plus flex centering. Each wrapper now spans the whole scroll container, so a single card fits the view. The arrows are stock: scrollPrev() and scrollNext() page by the visible group, and when the visible group is one item, a page and an item are the same thing.
Arrows and the wheel
Arrow state comes from useLeftArrowVisible() and useRightArrowVisible() — each returns true once the row sits at that end, and the story feeds it into disabled and fades the button out. The onWheel prop receives the API object along with the event, so a vertical mouse wheel pages the row by the sign of deltaY. It first sniffs for touchpads: any horizontal delta, or a vertical one under 15, is assumed to be a touchpad gesture and left to native scrolling.
Notes
itemIdon every child is the one hard requirement — it’s how items are tracked and scrolled to.- Cards still call
useIsVisible(itemId, true); with one item per view, every off-screen slide reportsvisible: false. - The scrollbar is hidden with plain CSS on the scroll container (
scrollbar-width: noneplus the WebKit pseudo-element) — that choice is yours, not the library’s. - Width lives entirely in your stylesheet. Swap 100% for 50% and you have a two-per-view slider; the library measures nothing.
Full source
Complete and copy-paste ready — this is the exact file behind the live-editable Storybook version.
import 'react-horizontal-scrolling-menu/dist/styles.css';
import styled from '@emotion/styled';
import React from 'react';
import {
type publicApiType,
ScrollMenu,
VisibilityContext,
} from 'react-horizontal-scrolling-menu';
const WideItems = styled('div')({
'& .react-horizontal-scrolling-menu--item ': {
minWidth: '100%',
display: 'flex',
justifyContent: 'center',
},
});
export function OneItem() {
const [items] = React.useState(() => getItems());
const [selected, setSelected] = React.useState<string[]>([]);
const isItemSelected = (id: string): boolean =>
!!selected.find((el) => el === id);
const handleItemClick = (itemId: string) => {
const itemSelected = isItemSelected(itemId);
setSelected((currentSelected: string[]) =>
itemSelected
? currentSelected.filter((el) => el !== itemId)
: currentSelected.concat(itemId),
);
};
return (
<WideItems>
<NoScrollbar>
<ScrollMenu
LeftArrow={LeftArrow}
RightArrow={RightArrow}
onWheel={onWheel}
>
{items.map(({ id }) => (
<Card
title={id}
itemId={id} // NOTE: itemId is required for track items
key={id}
onClick={() => handleItemClick(id)}
selected={isItemSelected(id)}
/>
))}
</ScrollMenu>
</NoScrollbar>
</WideItems>
);
}
export default OneItem;
function LeftArrow() {
const visibility = React.useContext<publicApiType>(VisibilityContext);
const disabled = visibility.useLeftArrowVisible();
return (
<Arrow
disabled={disabled}
onClick={() => visibility.scrollPrev()}
testId="left-arrow"
>
Left
</Arrow>
);
}
function RightArrow() {
const visibility = React.useContext<publicApiType>(VisibilityContext);
const disabled = visibility.useRightArrowVisible();
return (
<Arrow
disabled={disabled}
onClick={() => visibility.scrollNext()}
testId="right-arrow"
>
Right
</Arrow>
);
}
const NoScrollbar = styled('div')({
'& .react-horizontal-scrolling-menu--scroll-container::-webkit-scrollbar': {
display: 'none',
},
'& .react-horizontal-scrolling-menu--scroll-container': {
scrollbarWidth: 'none',
'-ms-overflow-style': 'none',
},
});
function Arrow({
children,
disabled,
onClick,
className,
testId,
}: {
children: React.ReactNode;
disabled: boolean;
onClick: VoidFunction;
className?: string;
testId: string;
}) {
return (
<ArrowButton
disabled={disabled}
onClick={onClick}
className={'arrow' + `-${className}`}
data-testid={testId}
>
{children}
</ArrowButton>
);
}
const ArrowButton = styled('button')((props) => ({
cursor: 'pointer',
display: 'flex',
flexDirection: 'column',
justifyContent: 'center',
marginBottom: '2px',
opacity: props.disabled ? '0' : '1',
userSelect: 'none',
borderRadius: '6px',
borderWidth: '1px',
}));
function Card({
onClick,
selected,
title,
itemId,
}: {
onClick: (context: publicApiType) => void;
selected: boolean;
title: string;
itemId: string;
}) {
const visibility = React.useContext<publicApiType>(VisibilityContext);
const isVisible = visibility.useIsVisible(itemId, true);
return (
<CardBody
data-cy={itemId}
onClick={() => onClick(visibility)}
onKeyDown={(ev: React.KeyboardEvent) => {
ev.code === 'Enter' && onClick(visibility);
}}
data-testid="card"
role="button"
tabIndex={0}
className="card"
visible={isVisible}
selected={selected}
>
<div className="header">
<div>{title}</div>
<div className="visible">visible: {JSON.stringify(isVisible)}</div>
<div className="selected">selected: {JSON.stringify(!!selected)}</div>
</div>
<div className="background" />
</CardBody>
);
}
const CardBody = styled('div')<{ selected?: boolean; visible?: boolean }>(
(props) => ({
border: '1px solid',
display: 'inline-block',
margin: '0 10px',
width: '160px',
userSelect: 'none',
borderRadius: '8px',
overflow: 'hidden',
'& .header': {
backgroundColor: 'white',
},
'& .visible': {
backgroundColor: props.visible ? 'transparent' : 'gray',
},
'& .background': {
backgroundColor: props.selected ? 'green' : 'bisque',
height: '200px',
},
}),
);
const getId = (index: number) => `${'test'}${index}`;
const getItems = () =>
Array(10)
.fill(0)
.map((_, ind) => ({ id: getId(ind) }));
function onWheel(apiObj: publicApiType, ev: React.WheelEvent): void {
// NOTE: no good standart way to distinguish touchpad scrolling gestures
// but can assume that gesture will affect X axis, mouse scroll only Y axis
// of if deltaY too small probably is it touchpad
const isThouchpad = Math.abs(ev.deltaX) !== 0 || Math.abs(ev.deltaY) < 15;
if (isThouchpad) {
ev.stopPropagation();
return;
}
if (ev.deltaY < 0) {
apiObj.scrollNext();
} else {
apiObj.scrollPrev();
}
}