<!DOCTYPE html>
<meta charset="utf-8">
<title>Selectors Level 4: focus-within</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/selectors-4/#focus-within-pseudo">
<link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#focus-fixup-rule">
<meta name="assert" content="Checks ':focus-within' pseudo-class after 'display: none'.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="wrapper">
<input id="input">
</div>
<script>
"use strict";
const wrapper = document.getElementById("wrapper");
const input = document.getElementById("input");
async_test((t) => {
input.focus();
window.requestAnimationFrame(() => {
t.step(() => assert_true(input.matches(":focus-within"),
"Check input matches ':focus-within' after being focused"));
t.step(() => assert_true(wrapper.matches(":focus-within"),
"Check wrapper matches ':focus-within' after child was focused"));
input.style.display = "none";
window.requestAnimationFrame(() => {
t.step(() => assert_false(input.matches(":focus-within"),
"Check input doesn't match ':focus-within' after getting 'display: none'"));
t.step(() => assert_false(wrapper.matches(":focus-within"),
"Check wrapper doesn't match ':focus-within' after child got 'display: none'"));
input.style.display = "inline";
t.done();
});
});
}, "Test ':focus-within' after 'display:none' on input");
async_test((t) => {
input.focus();
window.requestAnimationFrame(() => {
t.step(() => assert_true(input.matches(":focus-within"),
"Check input matches ':focus-within' after being focused"));
t.step(() => assert_true(wrapper.matches(":focus-within"),
"Check wrapper matches ':focus-within' after child was focused"));
wrapper.style.display = "none";
window.requestAnimationFrame(() => {
t.step(() => assert_false(input.matches(":focus-within"),
"Check input doesn't match ':focus-within' after parent got 'display: none'"));
t.step(() => assert_false(wrapper.matches(":focus-within"),
"Check wrapper doesn't match ':focus-within' after getting 'display: none'"));
wrapper.style.display = "block";
t.done();
});
});
}, "Test ':focus-within' after 'display:none' on input's parent");
</script>
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