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LibWeb: Parse the position-anchor property

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This commit is contained in:
Tim Ledbetter
2025-10-01 17:07:01 +01:00
committed by Sam Atkins
parent 7374a07fbc
commit 27cdf3a2c8
Notes: github-actions[bot] 2025-10-07 10:31:57 +00:00 
Author: https://github.com/tcl3
Commit: https://github.com/LadybirdBrowser/ladybird/commit/27cdf3a2c8e
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6363
Reviewed-by: https://github.com/AtkinsSJ ✅
9 changed files with 221 additions and 86 deletions
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Tests/LibWeb/Text/input/wpt-import/css/css-anchor-position/position-anchor-basics.html Normal file
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<!DOCTYPE html>
<title>Tests basics of the 'position-anchor' property</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#propdef-position-anchor">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../../css/support/parsing-testcommon.js"></script>
<script src="../../css/support/computed-testcommon.js"></script>
<script src="../../css/support/inheritance-testcommon.js"></script>
<script src="../../css/support/interpolation-testcommon.js"></script>
<div id="container">
<div id="target"></div>
</div>
<script>
// position-anchor: <anchor-element>
// <anchor-element> = auto | <dashed-ident>
test_valid_value('position-anchor', 'auto');
test_valid_value('position-anchor', '--foo');
test_invalid_value('position-anchor', 'none');
test_invalid_value('position-anchor', 'foo-bar');
test_invalid_value('position-anchor', '--foo --bar')
test_invalid_value('position-anchor', '--foo, --bar')
test_invalid_value('position-anchor', '100px');
test_invalid_value('position-anchor', '100%');
// Computed value: as specified
test_computed_value('position-anchor', 'auto');
test_computed_value('position-anchor', '--foo');
// Initial: auto
// Inherited: no
assert_not_inherited('position-anchor', 'auto', '--foo');
// Animation type: discrete
test_no_interpolation({
property: 'position-anchor',
from: '--foo',
to: 'auto',
});
</script>