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Diffstat (limited to 'testing/web-platform/tests/css/css-anchor-position/base-style-invalidation.html')
-rw-r--r-- | testing/web-platform/tests/css/css-anchor-position/base-style-invalidation.html | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-anchor-position/base-style-invalidation.html b/testing/web-platform/tests/css/css-anchor-position/base-style-invalidation.html new file mode 100644 index 0000000000..8e8e69f9b7 --- /dev/null +++ b/testing/web-platform/tests/css/css-anchor-position/base-style-invalidation.html @@ -0,0 +1,64 @@ +<!DOCTYPE html> +<title>CSS Anchor Positioning: Invalidation from changing the base style</title> +<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/"> +<link rel="help" href="https://issues.chromium.org/issues/333608683"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<style> + @position-try --pt { + width: 50px; /* Undo force overflow */ + } + #cb { + position: relative; + width: 200px; + height: 200px; + border: 1px solid black; + } + #anchor { + position: absolute; + left: 75px; + top: 75px; + width: 50px; + height: 50px; + background: coral; + anchor-name: --a; + } + #anchored { + position: absolute; + position-anchor: --a; + position-try-options: --pt flip-start; + inset: 0; + top: anchor(top); + bottom: anchor(bottom); + right: calc(anchor(left) + 5px); + width: 50px; + height: 50px; + background: skyblue; + justify-self: end; + } + #anchored.flip { + background: seagreen; + width: 300px; /* Force overflow */ + } +</style> +<div id=cb> + <div id=anchor></div> + <div id=anchored></div> +</div> +<script> + test(() => { + // Initially to the left. + assert_equals(anchored.offsetLeft, 20); + assert_equals(anchored.offsetTop, 75); + + // Flips to the right. + anchored.classList.toggle('flip'); + assert_equals(anchored.offsetLeft, 75); + assert_equals(anchored.offsetTop, 20); + + // Flips to the original position. + anchored.classList.toggle('flip'); + assert_equals(anchored.offsetLeft, 20); + assert_equals(anchored.offsetTop, 75); + }, 'The chosen position options changes when the base style differs'); +</script> |