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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/css/css-cascade/scope-invalidation.html
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE html>
+<title>@scope - invalidation</title>
+<link rel="help" href="https://drafts.csswg.org/css-cascade-6/#scope-atrule">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+
+function test_scope_invalidation(script_element, callback_fn, description) {
+ test((t) => {
+ // The provided <script> element must be an immedate subsequent sibling of
+ // a <template> element.
+ let template_element = script_element.previousElementSibling;
+ assert_equals(template_element.tagName, 'TEMPLATE');
+
+ t.add_cleanup(() => {
+ while (main.firstChild)
+ main.firstChild.remove()
+ });
+
+ main.append(template_element.content.cloneNode(true));
+
+ callback_fn();
+ }, description);
+}
+
+function assert_green(element) {
+ assert_equals(getComputedStyle(element).backgroundColor, 'rgb(0, 128, 0)');
+}
+function assert_not_green(element) {
+ assert_equals(getComputedStyle(element).backgroundColor, 'rgb(0, 0, 0)');
+}
+</script>
+<style>
+ main * {
+ background-color: black;
+ }
+</style>
+<main id=main>
+</main>
+
+<!-- Tests follow -->
+
+<template>
+ <style>
+ @scope (.a) {
+ span { background-color: green; }
+ }
+ </style>
+ <div>
+ <span></span>
+ </div>
+</template>
+<script>
+test_scope_invalidation(document.currentScript, () => {
+ let div = main.querySelector('div');
+ let span = main.querySelector('div > span');
+ assert_not_green(span);
+ div.classList.add('a');
+ assert_green(span);
+ div.classList.remove('a');
+ assert_not_green(span);
+}, 'Element becoming scope root');
+</script>
+
+
+<template>
+ <style>
+ @scope (.a) {
+ :scope { background-color: green; }
+ }
+ </style>
+ <div class=b></div>
+</template>
+<script>
+test_scope_invalidation(document.currentScript, () => {
+ let b = main.querySelector('.b');
+ assert_not_green(b);
+ b.classList.add('a');
+ assert_green(b);
+ b.classList.remove('a');
+ assert_not_green(b);
+}, 'Element becoming scope root, with inner :scope rule');
+</script>
+
+<template>
+ <style>
+ @scope (.a) to (.b) {
+ span { background-color: green; }
+ }
+ </style>
+ <div class=a>
+ <div>
+ <span></span>
+ </div>
+ </div>
+</template>
+<script>
+test_scope_invalidation(document.currentScript, () => {
+ let inner_div = main.querySelector('.a > div');
+ let span = main.querySelector('.a > div > span');
+ assert_green(span);
+ inner_div.classList.add('b');
+ assert_not_green(span);
+ inner_div.classList.remove('b');
+ assert_green(span);
+}, 'Element becoming scope limit');
+</script>
+
+
+<template>
+ <style>
+ @scope (.a) {
+ @scope (.b) {
+ span { background-color: green; }
+ }
+ }
+ </style>
+ <div>
+ <div>
+ <span></span>
+ </div>
+ </div>
+</template>
+<script>
+test_scope_invalidation(document.currentScript, () => {
+ let outer_div = main.querySelector(':scope > div');
+ let inner_div = main.querySelector(':scope > div > div');
+ let span = main.querySelector('div > div > span');
+
+ assert_not_green(span);
+
+ outer_div.classList.add('a');
+ assert_not_green(span);
+
+ inner_div.classList.add('b');
+ assert_green(span);
+
+ // Toggle .b while .a remains.
+ inner_div.classList.remove('b');
+ assert_not_green(span);
+ inner_div.classList.add('b');
+ assert_green(span);
+
+ // Toggle .a while .b remains.
+ outer_div.classList.remove('a');
+ assert_not_green(span);
+ outer_div.classList.add('a');
+ assert_green(span);
+}, 'Toggling inner/outer scope roots');
+</script>
+
+
+<template>
+ <style>
+ @scope (.a) {
+ :scope { background-color:green; }
+ }
+ </style>
+ <div></div>
+</template>
+<script>
+test_scope_invalidation(document.currentScript, () => {
+ let div = main.querySelector('main > div');
+ assert_not_green(div);
+ div.classList.add('a');
+ assert_green(div);
+ div.classList.remove('a');
+ assert_not_green(div);
+}, 'Element becoming root, with :scope in subject');
+</script>