overleaf/services/web/frontend/js/shared/hooks/use-callback-handlers.ts

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import { useCallback, useRef } from 'react'
export default function useCallbackHandlers() {
const handlersRef = useRef(new Set<(...arg: any[]) => void>())
const addHandler = useCallback((handler: (...args: any[]) => void) => {
handlersRef.current.add(handler)
}, [])
const deleteHandler = useCallback((handler: (...args: any[]) => void) => {
handlersRef.current.delete(handler)
}, [])
const callHandlers = useCallback((...args: any[]) => {
for (const handler of handlersRef.current) {
handler(...args)
}
}, [])
return { addHandler, deleteHandler, callHandlers }
}