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use-scroll-into-view

Scroll given node into view
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Package
@mantine/hooks

Usage

use-scroll-into-view handles scroll behavior for any scrollable element. Basic usage works the same way as element.scrollIntoView(). Hook adjusts scrolling animation with respect to the reduced-motion user preference.

Hello there
import { useScrollIntoView } from '@mantine/hooks';
import { Button, Text } from '@mantine/core';


function Demo() {
  const navbarHeight = 60;
  const { scrollIntoView, targetRef } = useScrollIntoView({ offset: navbarHeight });


  return (
    <>
      <Button onClick={() => scrollIntoView({ alignment: 'center' })}>
        Scroll to target
      </Button>


      <div style={{ height: '50vh'}} />


      <Text ref={targetRef}>Hello there</Text>
    </>
  );
}

API

Hook is configured with settings object:

  • onScrollFinish – function that will be called after scroll animation
  • easing – custom math easing function
  • duration - duration of scroll animation in milliseconds
  • axis - axis of scroll
  • cancelable - indicator if animation may be interrupted by user scrolling
  • offset - additional distance between nearest edge and element
  • isList - indicator that prevents content jumping in scrolling lists with multiple targets eg. Select, Carousel

Hook returns an object with:

  • scrollIntoView – function that starts scroll animation
  • cancel – function that stops scroll animation
  • targetRef - ref of target HTML node
  • scrollableRef - ref of scrollable parent HTML element, if not used document element will be used

Returned scrollIntoView function accepts single optional argument alignment - optional target element alignment relatively to parent based on current axis.

scrollIntoView({ alignment: 'center' });

Easing

Hook accept custom easing math function to control the flow of animation. It takes t argument which is a number between 0 and 1.

Default easing is easeInOutQuad - more info here. You can find other popular examples on easings.net

useScrollIntoView({
  target: someDomElement,
  easing: (t) => (t < 0.5 ? 16 * Math.pow(t, 5) : 1 - Math.pow(-2 * x + 2, 5) / 2), // easeInOutQuint
});

Examples

Parent node

Scroll me into view
import { useScrollIntoView } from '@mantine/hooks';
import { Button, Paper } from '@mantine/core';


function Demo() {
  const { scrollIntoView, targetRef, scrollableRef } = useScrollIntoView();


  return (
    <>
      <Paper ref={scrollableRef} style={{ overflowY: 'scroll', height: 300, flex: 1 }}>
        <Paper ref={targetRef}>Scroll me into view<</Paper>
      </Paper>


      <Button onClick={() => scrollIntoView()}>Scroll to target</Button>
    </>
  );
}

Scroll X axis

Scroll me into view
import { useScrollIntoView } from '@mantine/hooks';
import { Button, Paper } from '@mantine/core';


function Demo() {
  const { scrollIntoView, targetRef, scrollableRef } = useScrollIntoView({
    axis: 'x',
  });


  return (
    <>
      <Paper ref={scrollableRef} style={{ overflowX: 'scroll', height: 150, width: 300 }}>
        <Paper ref={targetRef}>Scroll me into view</Paper>
      </Paper>


      <Button onClick={() => scrollIntoView()}>Scroll to target</Button>
    </>
  );
}

Definition

function useScrollIntoView<
  Target extends HTMLElement,
  Parent extends HTMLElement | null = null
>({
  onScrollFinish?: () => void;
  duration?: number;
  axis?: 'x' | 'y';
  easing?: (t: number) => number;
  offset?: number;
  cancelable?: boolean;
  isList?: boolean;
}): {
  targetRef: MutableRefObject<Target>;
  scrollableRef: MutableRefObject<Parent>;
  scrollIntoView: ({
    alignment?: 'start' | 'end' | 'center';
  }) => void;
  cancel: () => void;
};
Go back
use-resize-observer – @mantine/hooks
Up next
use-scroll-lock – @mantine/hooks
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