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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-layout-api/edges/scrollbar.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class=reftest-wait>
<link rel="match" href="scrollbar-ref.html">
<meta name="assert" content="This test checks that scrollbar sizes are passed to the layout correctly." />
<style>
td { text-align: center; }
.parent {
box-sizing: border-box;
width: 50px;
height: 50px;
border: solid;
position: relative;
background: red;
}
@supports (display: layout(test)) {
.parent {
display: layout(test);
background: initial;
}
}
.child {
width: 10px;
height: 10px;
background: green;
}
</style>
<!--
This test works by placing four children in each corner of the layout using the edges.
The reference to this test uses absolute positioning to achieve the same effect.
-->
<table>
<tr>
<td></td>
<td colspan=2>LTR</td>
<td colspan=2>RTL</td>
</tr>
<tr>
<td></td>
<td>Y</td>
<td>X</td>
<td>Y</td>
<td>X</td>
</tr>
<tr>
<td>HTB</td>
<td>
<div class="parent" style="writing-mode: horizontal-tb; direction: ltr; overflow-y: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: horizontal-tb; direction: ltr; overflow-x: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: horizontal-tb; direction: rtl; overflow-y: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: horizontal-tb; direction: rtl; overflow-x: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
</tr>
<tr>
<td>VRL</td>
<td>
<div class="parent" style="writing-mode: vertical-rl; direction: ltr; overflow-y: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: vertical-rl; direction: ltr; overflow-x: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: vertical-rl; direction: rtl; overflow-y: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: vertical-rl; direction: rtl; overflow-x: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
</tr>
<tr>
<td>VLR</td>
<td>
<div class="parent" style="writing-mode: vertical-lr; direction: ltr; overflow-y: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: vertical-lr; direction: ltr; overflow-x: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: vertical-lr; direction: rtl; overflow-y: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
<td>
<div class="parent" style="writing-mode: vertical-lr; direction: rtl; overflow-x: scroll;">
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
<div class="child"></div>
</div>
</td>
</tr>
</table>
<script src="/common/reftest-wait.js"></script>
<script src="/common/worklet-reftest.js"></script>
<script id="code" type="text/worklet">
registerLayout('test', class {
async intrinsicSizes() {}
async layout(children, edges, constraints) {
const topLeftFragment = await children[0].layoutNextFragment();
const topRightFragment = await children[1].layoutNextFragment();
const bottomLeftFragment = await children[2].layoutNextFragment();
const bottomRightFragment = await children[3].layoutNextFragment();
topLeftFragment.inlineOffset = edges.inlineStart;
topLeftFragment.blockOffset = edges.blockStart;
topRightFragment.inlineOffset =
constraints.fixedInlineSize - topRightFragment.inlineSize - edges.inlineEnd;
topRightFragment.blockOffset = edges.blockStart;
bottomLeftFragment.inlineOffset = edges.inlineStart;
bottomLeftFragment.blockOffset =
constraints.fixedBlockSize - bottomLeftFragment.blockSize - edges.blockEnd;
bottomRightFragment.inlineOffset =
constraints.fixedInlineSize - bottomRightFragment.inlineSize - edges.inlineEnd;
bottomRightFragment.blockOffset =
constraints.fixedBlockSize - bottomRightFragment.blockSize - edges.blockEnd;
return {childFragments: [
topLeftFragment,
topRightFragment,
bottomLeftFragment,
bottomRightFragment
]};
}
});
</script>
<script>
importWorkletAndTerminateTestAfterAsyncPaint(CSS.layoutWorklet, document.getElementById('code').textContent);
</script>