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<!DOCTYPE html>
<meta charset="utf-8" />
<title>CSS Selectors Invalidation: :modal pseudo class in :has()</title>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="help" href="https://drafts.csswg.org/selectors/#relational">
<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>
<style>
#subject:has(#dialog:modal) { color: green; }
#subject:has(#fullscreenTarget:modal) { color: blue; }
</style>
<div id="subject">
This is some text.
<dialog id="dialog">This is a dialog</dialog>
<div id="fullscreenTarget">This is going to be fullscreened</div>
</div>
<script>
// Dialog tests
test(function() {
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black since dialog is not modal");
dialog.show();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black since dialog is not modal");
dialog.close();
}, ":modal pseudo-class is not active with dialog.show()");
test(function() {
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black");
dialog.showModal();
assert_equals(getComputedStyle(subject).color, "rgb(0, 128, 0)",
"ancestor should be green since dialog is shown modally");
dialog.close();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black since dialog is closed");
}, ":modal pseudo-class invalidation with showModal + close");
test(function() {
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black");
dialog.showModal();
assert_equals(getComputedStyle(subject).color, "rgb(0, 128, 0)",
"ancestor should be green since dialog is shown modally");
dialog.remove();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black since dialog is removed");
}, ":modal pseudo-class invalidation with showModal + remove");
// Fullscreen tests
let waitForFullscreenChange = () => {
return new Promise((resolve) => {
document.addEventListener("fullscreenchange", resolve, { once: true });
});
};
promise_test(async function() {
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black");
test_driver.bless("fullscreen", () => fullscreenTarget.requestFullscreen());
await waitForFullscreenChange();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 255)",
"ancestor should be blue since target is fullscreen");
document.exitFullscreen();
await waitForFullscreenChange();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black since target is no longer fullscreen");
}, ":modal pseudo-class invalidation with requestFullscreen + exitFullscreen");
promise_test(async function() {
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black");
test_driver.bless("fullscreen", () => fullscreenTarget.requestFullscreen());
await waitForFullscreenChange();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 255)",
"ancestor should be blue since target is fullscreen");
fullscreenTarget.remove();
await waitForFullscreenChange();
assert_equals(getComputedStyle(subject).color, "rgb(0, 0, 0)",
"ancestor should be black since target is removed");
}, ":modal pseudo-class invalidation with requestFullscreen + remove");
</script>
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