twrefresh.user.js

// ==UserScript==
// @name          Auto Refresh Twitter Timeline
// @description   Automatically refreshes follow timeline on Twitter.
// @match         https://twitter.com/home
// @version       1.8
// @updateURL     https://gist.githubusercontent.com/kyohsuke/21c3b0ca532a87a1b3f357dfc94d3f24/raw/twrefresh.user.js
// @downloadURL   https://gist.githubusercontent.com/kyohsuke/21c3b0ca532a87a1b3f357dfc94d3f24/raw/twrefresh.user.js
// @icon          https://help.twitter.com/content/dam/help-twitter/brand/logo.png
// @grant         none
// ==/UserScript==

setTimeout(function() {
  'use strict';

  let MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;

  if (MutationObserver) {
    console.log('Auto Refresh Twitter Timelineis enabled.');

    let observer = new MutationObserver(e => {
      function isAtTopOfPage() {
        const maxScrollY = 120;
        return window.scrollY <= maxScrollY;
      }

      function isHomeTimeline() {
        const tabText = "フォロー中";
        const locationURL = 'https://twitter.com/home';
        const selectQuery = 'a[href="/home"][role="tab"][aria-selected="true"]';

        return (window.location.href === locationURL) && (document.querySelector(selectQuery)?.innerText === tabText);
      }

      function refreshTimeline() {
        if (isAtTopOfPage() && isHomeTimeline()) {
          const evaluateStr = '//div[@data-testid="cellInnerDiv"]/div/div[@role="button"]';
          let cells = document.evaluate(evaluateStr, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
          let firstCell = (0 < cells.snapshotLength) ?  cells.snapshotItem(0) : null;

          if (firstCell) {
            firstCell.click();
          }
        }
      }

      refreshTimeline();
    });
    observer.observe(document.body, {childList: true, subtree: true});
  }
}, 5000);