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<!doctype html>
<meta charset="utf-8">
<title>Details activation with space bar</title>
<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1726454">
<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>
<style>
:root {
scroll-behavior: instant;
}
.spacer {
height: 200vh;
}
</style>
<details>
<summary>Activate me with the <kbd>Space</kbd> key</summary>
<p>Summary</p>
</details>
<div class="spacer"></div>
<script>
function tick() {
return new Promise(resolve => requestAnimationFrame(() => requestAnimationFrame(resolve)));
}
promise_test(async t => {
const details = document.querySelector("details");
const summary = details.querySelector("summary");
summary.focus();
assert_equals(document.activeElement, summary, "Summary should be focusable");
assert_false(details.open, "Details should be closed");
const oldScrollY = window.scrollY;
assert_equals(oldScrollY, 0, "Should be at top");
window.addEventListener("scroll", t.unreached_func("Unexpected scroll event"));
await test_driver.send_keys(summary, " ");
assert_true(details.open, "Space bar on summary should open details");
assert_equals(window.scrollY, oldScrollY, "Scroll position shouldn't change");
await tick();
assert_equals(window.scrollY, oldScrollY, "Scroll position shouldn't change");
});
</script>
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