https://www.aivortex.io/about/about.js

1/* About-only progressive navigation; no network requests or form handling. */
2(function () {
3  const button = document.querySelector('.av-menu');
4  const nav = document.getElementById('primary-nav');
5  if (!button || !nav) return;
6  document.documentElement.classList.add('av-enhanced');
7  button.hidden = false;
8  function setOpen(open) { nav.classList.toggle('av-open', open); button.setAttribute('aria-expanded', String(open)); button.textContent = open ? 'Close menu' : 'Menu'; }
9  button.addEventListener('click', () => setOpen(button.getAttribute('aria-expanded') !== 'true'));
10  document.addEventListener('keydown', e => { if (e.key === 'Escape' && button.getAttribute('aria-expanded') === 'true') { setOpen(false); button.focus(); } });
11  nav.addEventListener('click', e => { if (e.target.closest('a')) setOpen(false); });
12  // Keep native playback as the no-JS fallback; avoid a buffering spinner on
13  // intentionally unloaded movies by showing an explicit opt-in control.
14  document.querySelectorAll('.av-film video').forEach(video => {
15    const frame = document.createElement('div');
16    frame.className = 'av-film-frame';
17    video.before(frame);
18    frame.append(video);
19    const play = document.createElement('button');
20    play.type = 'button';
21    play.className = 'av-film-play';
22    play.setAttribute('aria-label', video.getAttribute('aria-label'));
23    play.innerHTML = '<span aria-hidden="true">▶</span><span>Play film</span>';
24    frame.append(play);
25    video.controls = false;
26    let attempt = 0;
27    let retry = false;
28    let startupTimer;
29    function showRetry() {
30      clearTimeout(startupTimer);
31      retry = true;
32      video.pause();
33      video.controls = false;
34      play.hidden = false;
35      play.querySelector('span:last-child').textContent = 'Retry playback';
36      play.focus();
37    }
38    video.addEventListener('error', showRetry);
39    video.querySelector('source').addEventListener('error', showRetry);
40    play.addEventListener('click', async () => {
41      const currentAttempt = ++attempt;
42      const shouldReload = retry || video.error;
43      retry = false;
44      play.hidden = true;
45      video.controls = true;
46      // Some browsers leave play() pending after a failed <source> request.
47      startupTimer = setTimeout(() => {
48        if (currentAttempt === attempt && video.readyState < 2) showRetry();
49      }, 12000);
50      try {
51        if (shouldReload) video.load();
52        await video.play();
53        if (currentAttempt === attempt) { clearTimeout(startupTimer); video.focus(); }
54      } catch (_) {
55        if (currentAttempt === attempt) showRetry();
56      }
57    });
58  });
59})();