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Test Info: Warnings
- This test has a WPT meta file that expects 4 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/cssom-view/scrollWidthHeight-overflow-visible-negative-margins.html - WPT Dashboard Interop Dashboard
<!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">
<title>scroll{Width,Height} shouldn't account for collapsed margins, in order not to report unnecessary overflow</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#target {
width: 20px;
flex-direction: column;
}
#target > div {
background-color: green;
margin: -5px -7px;
}
#target > div > div {
height: 20px;
width: 20px;
}
</style>
<div id="target">
<div><div></div></div>
<div><div></div></div>
<div><div></div></div>
<div><div></div></div>
</div>
<script>
let target = document.getElementById("target");
// "clip" is not really scrollable, but should match as well.
for (let overflow of ["visible", "hidden", "auto", "scroll", "clip"]) {
// First one creates no overflow, last one does create overflow.
// TODO(emilio): Figure out why the overflow padding and some of the grid cases
// are not interoperable across platforms / engines. Maybe scrollbar-width dependent?
for (let padding of ["10px 20px" /* , "2px" */]) {
for (let border of ["0", "3px solid"]) {
for (let display of ["flex", "block", "flow-root", "inline-block", "inline-flex", /* "grid", "inline-grid" */]) {
test(function() {
let [expectedOverflowY, expectedOverflowX] = padding == "10px 20px" ? [0, 0] : [3, 5];
target.style.overflow = overflow;
target.style.display = display;
target.style.border = border;
target.style.padding = padding;
let sh = target.scrollHeight;
let sw = target.scrollWidth;
let ch = target.clientHeight;
let cw = target.clientWidth;
assert_equals(sh, ch + expectedOverflowY, `scrollHeight expecting ${expectedOverflowY}px of overflow`);
assert_equals(sw, cw + expectedOverflowX, `scrollWidth expecting ${expectedOverflowX}px of overflow`);
}, `scroll{Width,Height} with negative margins with overflow: ${overflow}, padding: ${padding}, border: ${border}, display: ${display}`);
}
}
}
}
</script>