compose-refs.ts•1.06 kB
// @see https://github.com/radix-ui/primitives/blob/main/packages/react/compose-refs/src/composeRefs.tsx
import * as React from 'react';
type PossibleRef<T> = React.Ref<T> | undefined;
/**
* Set a given ref to a given value
* This utility takes care of different types of refs: callback refs and RefObject(s)
*/
function setRef<T>(ref: PossibleRef<T>, value: T) {
if (typeof ref === 'function') {
ref(value);
} else if (ref !== null && ref !== undefined) {
(ref as React.MutableRefObject<T>).current = value;
}
}
/**
* A utility to compose multiple refs together
* Accepts callback refs and RefObject(s)
*/
function composeRefs<T>(...refs: PossibleRef<T>[]) {
return (node: T) => refs.forEach((ref) => setRef(ref, node));
}
/**
* A custom hook that composes multiple refs
* Accepts callback refs and RefObject(s)
*/
function useComposedRefs<T>(...refs: PossibleRef<T>[]) {
// eslint-disable-next-line react-hooks/exhaustive-deps
return React.useCallback(composeRefs(...refs), refs);
}
export { composeRefs, useComposedRefs };