Created
April 4, 2020 09:08
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import { RefObject, useEffect } from 'react'; | |
const MOUSEDOWN = 'mousedown'; | |
const TOUCHSTART = 'touchstart'; | |
type HandledEvents = [typeof MOUSEDOWN, typeof TOUCHSTART]; | |
interface UseOnClickOutsideProps { | |
innerRef: RefObject<HTMLElement>; | |
outerRef?: RefObject<HTMLElement> | { current: HTMLDocument }; | |
handler?: { | |
innerRef?: () => void; | |
outerRef?: () => void; | |
}; | |
} | |
const useOnClickOutside = ({ | |
innerRef, | |
outerRef = { current: document }, | |
handler, | |
}: UseOnClickOutsideProps) => { | |
useEffect(() => { | |
if (!handler || !innerRef) return; | |
const outRefListener = (e: Event): void => { | |
if (!innerRef.current || !handler || innerRef.current.contains(e.target as Node)) return; | |
e.preventDefault(); | |
e.stopPropagation(); | |
handler.outerRef && handler.outerRef(); | |
}; | |
const innerRefListener = (e: Event): void => { | |
e.stopPropagation(); | |
handler.innerRef && handler.innerRef(); | |
}; | |
const events: HandledEvents = [MOUSEDOWN, TOUCHSTART]; | |
events.forEach(event => { | |
outerRef.current && outerRef.current.addEventListener(event, outRefListener); | |
innerRef.current && innerRef.current.addEventListener(event, innerRefListener); | |
}); | |
return () => { | |
events.forEach(event => { | |
outerRef.current && outerRef.current.removeEventListener(event, outRefListener); | |
innerRef.current && innerRef.current.removeEventListener(event, innerRefListener); | |
}); | |
}; | |
}, [handler]); | |
}; | |
export default useOnClickOutside; |
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