@uppy/utils/lib/delay.js

var _require = require('./AbortController'),
    createAbortError = _require.createAbortError;
/**
 * Return a Promise that resolves after `ms` milliseconds.
 *
 * @param {number} ms - Number of milliseconds to wait.
 * @param {{ signal?: AbortSignal }} [opts] - An abort signal that can be used to cancel the delay early.
 * @returns {Promise<void>} A Promise that resolves after the given amount of `ms`.
 */


module.exports = function delay(ms, opts) {
  return new Promise(function (resolve, reject) {
    if (opts && opts.signal && opts.signal.aborted) {
      return reject(createAbortError());
    }

    function onabort() {
      clearTimeout(timeout);
      cleanup();
      reject(createAbortError());
    }

    var timeout = setTimeout(function () {
      cleanup();
      resolve();
    }, ms);

    if (opts && opts.signal) {
      opts.signal.addEventListener('abort', onabort);
    }

    function cleanup() {
      if (opts && opts.signal) {
        opts.signal.removeEventListener('abort', onabort);
      }
    }
  });
};