forked from mirrors/gecko-dev
a7328ff30a
Automatic update from web-platform-tests WebKit export of https://bugs.webkit.org/show_bug.cgi?id=266303 (#43674) * WebKit export of https://bugs.webkit.org/show_bug.cgi?id=266303 -- wpt-commits: 43f51a2ddf0a5f5db514c8ff9ea8bc04e04f978d wpt-pr: 43674
63 lines
1.3 KiB
HTML
63 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<link rel="help" href="https://drafts.csswg.org/css-scroll-anchoring/">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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body { height: 4000px; }
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div { height: 100px; }
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.scroller {
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overflow: scroll;
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position: fixed;
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width: 300px;
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height: 300px;
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background-color: green;
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}
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#posSticky {
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top: 300px;
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position: relative;
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height: 50px;
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width: 50px;
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background-color: blue;
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}
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#content {
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background-color: #D3D3D3;
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height: 50px;
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width: 50px;
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position: relative;
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top: 500px;
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}
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</style>
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<div id="scroller" class="scroller">
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<div id="content"></div>
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<div id="posSticky">
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<div id="block1" tabindex="-1">abc</div>
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</div>
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</div>
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<script>
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// Tests that a focused element doesn't become the
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// priority candidate of the main frame if it is
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// in an excluded subtree
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promise_test(async function() {
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var scroller = document.querySelector("#scroller");
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var focusElement = document.querySelector("#block1");
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focusElement.focus();
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scroller.scrollBy(0,150);
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document.scrollingElement.scrollBy(0,100);
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await new Promise(resolve => {
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document.addEventListener("scroll", () => step_timeout(resolve, 0));
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});
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assert_equals(document.scrollingElement.scrollTop, 100);
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}, "Ensure there is no scroll anchoring adjustment in the main frame.");
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</script>
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