useTimeout.js

import { useMemo, useRef } from 'react';
import useMounted from './useMounted';
import useWillUnmount from './useWillUnmount';
/*
 * Browsers including Internet Explorer, Chrome, Safari, and Firefox store the
 * delay as a 32-bit signed integer internally. This causes an integer overflow
 * when using delays larger than 2,147,483,647 ms (about 24.8 days),
 * resulting in the timeout being executed immediately.
 *
 * via: https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout
 */

var MAX_DELAY_MS = Math.pow(2, 31) - 1;

function setChainedTimeout(handleRef, fn, timeoutAtMs) {
  var delayMs = timeoutAtMs - Date.now();
  handleRef.current = delayMs <= MAX_DELAY_MS ? setTimeout(fn, delayMs) : setTimeout(function () {
    return setChainedTimeout(handleRef, fn, timeoutAtMs);
  }, MAX_DELAY_MS);
}
/**
 * Returns a controller object for setting a timeout that is properly cleaned up
 * once the component unmounts. New timeouts cancel and replace existing ones.
 */


export default function useTimeout() {
  var isMounted = useMounted(); // types are confused between node and web here IDK

  var handleRef = useRef();
  useWillUnmount(function () {
    return clearTimeout(handleRef.current);
  });
  return useMemo(function () {
    var clear = function clear() {
      return clearTimeout(handleRef.current);
    };

    function set(fn, delayMs) {
      if (delayMs === void 0) {
        delayMs = 0;
      }

      if (!isMounted()) return;
      clear();

      if (delayMs <= MAX_DELAY_MS) {
        // For simplicity, if the timeout is short, just set a normal timeout.
        handleRef.current = setTimeout(fn, delayMs);
      } else {
        setChainedTimeout(handleRef, fn, Date.now() + delayMs);
      }
    }

    return {
      set: set,
      clear: clear
    };
  }, []);
}