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<!doctype html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollwidth">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollheight">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1931490">
<title>scroll{Width,Height} with contain: layout</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#target {
contain: layout;
height: 0;
width: 0;
}
</style>
<div id="target">
<div style="height: 2000px"></div>
</div>
<script>
let target = document.getElementById("target");
// "clip" is not really scrollable, but should match as well.
for (let overflow of ["hidden", "auto", "scroll", "clip"]) {
for (let padding of ["0", "2px"]) {
for (let border of ["0", "3px solid"]) {
for (let display of ["flex", "block", "flow-root", "inline-block", "inline-flex", "grid", "inline-grid", "inline"]) {
test(function() {
target.style.display = display;
target.style.border = border;
target.style.padding = padding;
let visibleH = target.scrollHeight;
let visibleW = target.scrollWidth;
target.style.overflow = overflow;
let scrollableH = target.scrollHeight;
let scrollableW = target.scrollWidth;
assert_equals(visibleH, scrollableH, "scrollHeight should match for visible and " + overflow);
assert_equals(visibleW, scrollableW, "scrollWidth should match for visible and " + overflow);
target.style.overflow = "";
target.style.display = "";
}, `scroll{Width,Height} should match with contain: layout for display: ${display}, overflow: ${overflow}, padding: ${padding}, border: ${border}`);
}
}
}
}
</script>
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