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| 1 | +<!DOCTYPE html> |
| 2 | +<meta charset="utf-8"> |
| 3 | +<title>:has() invalidation when :has() is in a non-subject compound of an enclosing :is()</title> |
| 4 | +<link rel="help" href="https://drafts.csswg.org/selectors/#relational"> |
| 5 | +<script src="/resources/testharness.js"></script> |
| 6 | +<script src="/resources/testharnessreport.js"></script> |
| 7 | +<style> |
| 8 | +div { color: grey } |
| 9 | +/* :has() sits in the leftmost (ancestor) compound of the :is() argument; the actual |
| 10 | + has-bearer is some ancestor of #outer, not #outer itself. */ |
| 11 | +#outer:is(:has(.test) .outer) #subject { color: red } |
| 12 | +</style> |
| 13 | +<div> |
| 14 | + <div id="trigger"> |
| 15 | + <div id="outer" class="outer"> |
| 16 | + <div id="subject"></div> |
| 17 | + </div> |
| 18 | + </div> |
| 19 | +</div> |
| 20 | +<script> |
| 21 | +const grey = 'rgb(128, 128, 128)'; |
| 22 | +const red = 'rgb(255, 0, 0)'; |
| 23 | + |
| 24 | +test(() => { |
| 25 | + assert_equals(getComputedStyle(subject).color, grey); |
| 26 | +}, 'initial: #subject is grey'); |
| 27 | + |
| 28 | +test(() => { |
| 29 | + const testElement = document.createElement('div'); |
| 30 | + testElement.className = 'test'; |
| 31 | + trigger.appendChild(testElement); |
| 32 | + assert_equals(getComputedStyle(subject).color, red); |
| 33 | +}, 'insert .test under #trigger: #subject becomes red'); |
| 34 | + |
| 35 | +test(() => { |
| 36 | + trigger.querySelector('.test').remove(); |
| 37 | + assert_equals(getComputedStyle(subject).color, grey); |
| 38 | +}, 'remove .test: #subject returns to grey'); |
| 39 | +</script> |
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