mirror of https://github.com/usememos/memos
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1010 B
TypeScript
41 lines
1010 B
TypeScript
import { useCallback, useEffect, useRef } from "react";
|
|
|
|
export type UseTimeoutFnReturn = [() => boolean | null, () => void, () => void];
|
|
|
|
export default function useTimeoutFn(fn: () => any, ms = 0): UseTimeoutFnReturn {
|
|
const ready = useRef<boolean | null>(false);
|
|
const timeout = useRef<ReturnType<typeof setTimeout>>();
|
|
const callback = useRef(fn);
|
|
|
|
const isReady = useCallback(() => ready.current, []);
|
|
|
|
const set = useCallback(() => {
|
|
ready.current = false;
|
|
timeout.current && clearTimeout(timeout.current);
|
|
|
|
timeout.current = setTimeout(() => {
|
|
ready.current = true;
|
|
callback.current();
|
|
}, ms);
|
|
}, [ms]);
|
|
|
|
const clear = useCallback(() => {
|
|
ready.current = null;
|
|
timeout.current && clearTimeout(timeout.current);
|
|
}, []);
|
|
|
|
// update ref when function changes
|
|
useEffect(() => {
|
|
callback.current = fn;
|
|
}, [fn]);
|
|
|
|
// set on mount, clear on unmount
|
|
useEffect(() => {
|
|
set();
|
|
|
|
return clear;
|
|
}, [ms]);
|
|
|
|
return [isReady, clear, set];
|
|
}
|