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<!DOCTYPE html>
<meta charset="utf-8"/>
<title>:modal pseudo-class</title>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="author" title="Jihwan Marc Kim" href="mailto:bluewhale.marc@gmail.com" />
<link rel="help" href="https://drafts.csswg.org/selectors/#modal-state">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<dialog id="dialog">Just another dialog.</dialog>
<div id="container">
<button id="btn"></button>
</div>
<script>
test(() => {
const dialog = document.getElementById("dialog");
assert_false(dialog.matches(":modal"), "dialog is initially closed (does not match :modal)");
dialog.showModal();
assert_true(dialog.matches(":modal"), "dialog should match :modal after showModal() call");
dialog.close();
assert_false(dialog.matches(":modal"), "dialog should no longer match :modal after close() call");
dialog.show();
assert_false(dialog.matches(":modal"), "dialog shouldn't match :modal after show() call");
dialog.close();
dialog.showModal();
assert_true(dialog.matches(":modal"), "dialog should match :modal after showModal() call");
dialog.remove();
assert_false(dialog.matches(":modal"), "dialog shouldn't match :modal after being removed from document");
document.body.append(dialog);
assert_false(dialog.matches(":modal"), "dialog shouldn't match :modal after being re-appended to document");
dialog.close();
}, "Test that :modal matches modal <dialog>");
promise_test(async () => {
const container = document.getElementById("container");
const btn = document.getElementById("btn");
assert_false(container.matches(":modal"), "before requestFullscreen (does not match :modal)");
await test_driver.click(btn);
await container.requestFullscreen();
assert_true(container.matches(":modal"), ":fullscreen should match :modal");
await document.exitFullscreen();
assert_false(container.matches(":modal"), "after exitFullscreen (does not match :modal)");
}, "Test that :modal matches the fullscreen element");
</script>