Function useAnchoredPosition

packages/react/src/hooks/useAnchoredPosition.ts:22–55

(
  settings?: AnchoredPositionHookSettings,
  dependencies: React.DependencyList = [],
)

 * floating element.
 */
export function useAnchoredPosition(
  settings?: AnchoredPositionHookSettings,
  dependencies: React.DependencyList = [],
): {
  floatingElementRef: React.RefObject<Element>
  anchorElementRef: React.RefObject<Element>
  position: AnchorPosition | undefined
} {
  const floatingElementRef = useProvidedRefOrCreate(settings?.floatingElementRef)
  const anchorElementRef = useProvidedRefOrCreate(settings?.anchorElementRef)
  const [position, setPosition] = React.useState<AnchorPosition | undefined>(undefined)

  const updatePosition = React.useCallback(
    () => {
      if (floatingElementRef.current instanceof Element && anchorElementRef.current instanceof Element) {
        setPosition(getAnchoredPosition(floatingElementRef.current, anchorElementRef.current, settings))
      } else {
        setPosition(undefined)
      }
    },
    // eslint-disable-next-line react-hooks/exhaustive-deps
    [floatingElementRef, anchorElementRef, ...dependencies],
  )

  useLayoutEffect(updatePosition, [updatePosition])

  useResizeObserver(updatePosition)

  return {
    floatingElementRef,
    anchorElementRef,
    position,
  }
}