<!DOCTYPE html>
<meta charset="utf-8" />
<title>CSS Test (Selectors): Script focus on keyboard event handler matches :focus-visible</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
<style>
#warning {
display: none;
background: red;
}
@supports not selector(:focus-visible) {
#instructions {
display: none;
}
#warning {
display: block;
}
}
:focus-visible {
outline: green solid 5px;
}
:focus:not(:focus-visible) {
outline: 0;
background-color: red;
}
</style>
<p>This test checks that changing focus via script on keyboard event handler matches <code>:focus-visible</code>.</p>
<ol id="instructions">
<li>Type any letter with the keyboard without having done anything before.</li>
<li>If the element that says "Focused" has a red background, then the test result is FAILURE. If the element has a green outline, then the test result is SUCCESS.</li>
</ol>
<p id="warning">Your user-agent does not support <code>:focus-visible</code> pseudo-class, please SKIP this test.</p>
<div id="target" tabindex="0">Focused.</div>
<script>
// Check that :focus-visible is supported.
test_valid_selector(':focus-visible');
document.addEventListener("keydown", () => {
target.focus();
});
async_test(function(t) {
test_driver.send_keys(document.body, "a").then(t.step_func_done(function() {
assert_equals(getComputedStyle(target).outlineColor, "rgb(0, 128, 0)", `outlineColor for ${target.tagName}#${target.id} should be green`);
assert_not_equals(getComputedStyle(target).backgroundColor, "rgb(255, 0, 0)", `backgroundColor for ${target.tagName}#${target.id} should NOT be red`);
let focusVisiblePseudoAll = document.querySelectorAll(':focus-visible');
assert_equals(focusVisiblePseudoAll.length, 1, "Only 1 element matches ':focus-visible'");
let focusVisiblePseudo = document.querySelector(':focus-visible');
assert_equals(target, focusVisiblePseudo, "${target.tagName}#${target.id} matches ':focus-visible'");
}));
}, "Focus via script on keyboard event handler matches ':focus-visible'");
</script>
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