Created
December 29, 2020 05:47
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// https://letsbuildui.dev/articles/building-a-dropdown-menu-component-with-react-hooks | |
import { useState, useEffect, RefObject } from 'react'; | |
export const useDetectOutsideClick = (ref: RefObject<HTMLElement>, initialState: boolean) => { | |
const [isActive, setIsActive] = useState(initialState); | |
useEffect(() => { | |
const pageClickEvent = (event: MouseEvent) => { | |
// If the active element exists and is clicked outside of | |
if (ref.current !== null && !ref.current.contains(event.target as Node)) { | |
setIsActive(!isActive); | |
} | |
}; | |
// If the item is active (ie open) then listen for clicks | |
if (isActive) { | |
window.addEventListener('click', pageClickEvent); | |
} | |
return () => { | |
window.removeEventListener('click', pageClickEvent); | |
}; | |
}, [isActive, ref]); | |
return [isActive, setIsActive] as const; | |
}; |
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The best outside click, no bugs.