Content - 3adcfe598a51b13d7f8560c3c72c048157065451 - 33f70ef/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html

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Tip revision: feeda08fb7c8a7c57afb1448d118942236ef6c94 authored by Coroiu Cristina on 26 November 2018, 20:19:20 UTC
Backed out changeset d32110a492f5 (bug 1383454) for did not disable the test

Tip revision: feeda08

anchoring-with-bounds-clamping.html

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>

#changer { height: 1500px; }
#anchor {
  width: 150px;
  height: 1000px;
  background-color: pink;
}

</style>
<div id="changer"></div>
<div id="anchor"></div>
<script>

// Test that scroll anchoring interacts correctly with scroll bounds clamping:
// There should be no visible jump even if the content shrinks such that the
// new max scroll position is less than the previous scroll position.

test(() => {
  document.scrollingElement.scrollTop = 1600;
  document.querySelector("#changer").style.height = "0";
  assert_equals(document.scrollingElement.scrollTop, 100);
}, "Anchoring combined with scroll bounds clamping in the document.");

</script>

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