dynamic-inert-on-focused-element.html

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This WPT test may be referenced by the following Test IDs:
- /inert/dynamic-inert-on-focused-element.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8" />

<title>Dynamic inertness on focused element</title>

<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">

<link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#focus-fixup-rule">

<meta name="assert" content="If a focused element becomes inert, it stops being focused.">

<div id="log"></div>

<div class="test-wrapper" data-name="<input> that gets 'inert' attribute">

  <input class="becomes-inert check-focus">

</div>

<div class="test-wrapper" data-name="<input> whose parent gets 'inert' attribute">

  <div class="becomes-inert">

    <input class="check-focus">

  </div>

</div>

<div class="test-wrapper" data-name="<button> that gets 'inert' attribute">

  <button class="becomes-inert check-focus">foo</button>

</div>

<div class="test-wrapper" data-name="<div> that gets 'inert' attribute">

  <div class="becomes-inert check-focus" tabindex="-1"></div>

</div>

<div class="test-wrapper" data-name="<div> whose parent gets 'inert' attribute">

  <div class="becomes-inert">

    <div class="check-focus" tabindex="-1">bar</div>

  </div>

</div>

<div class="test-wrapper" data-name="<div> whose grandparent gets 'inert' attribute">

  <div class="becomes-inert">

<p>

      <span class="check-focus" tabindex="-1">baz</span>

    </p>

  </div>

</div>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

function nextRepaint() {

  return new Promise(resolve => {

    requestAnimationFrame(() => {

      requestAnimationFrame(resolve);

});

});

const loaded = new Promise(resolve => {

  addEventListener("load", resolve, {once: true});

});

promise_setup(() => loaded);

for (const testWrapper of document.querySelectorAll(".test-wrapper")) {

  const becomesInert = testWrapper.querySelector(".becomes-inert");

  const checkFocus = testWrapper.querySelector(".check-focus");

  promise_test(async function() {

    checkFocus.focus();

    assert_equals(document.activeElement, checkFocus, "The element is focused");

    becomesInert.inert = true;

    // The focus fixup rule should blur the element since it's no longer focusable.

    // In Chromium this happens after a repaint (https://crbug.com/1275097).

    await nextRepaint();

    assert_equals(document.activeElement, document.body, "The element stops being focused");

  }, testWrapper.dataset.name);

</script>