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64 lines
1.6 KiB
HTML
64 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<html class=reftest-wait>
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<link rel="help" href="https://drafts.css-houdini.org/css-layout-api/#dom-layoutfragment-data">
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<link rel="match" href="green-square-ref.html">
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<meta name="assert" content="This test checks that passing data to a parent layout works correctly." />
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<style>
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.test {
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background: red;
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width: 100px;
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}
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@supports (display: layout(parent)) {
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.test {
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display: layout(parent);
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background: green;
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}
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.child {
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display: layout(child);
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}
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}
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</style>
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<script src="/common/reftest-wait.js"></script>
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<script src="/common/worklet-reftest.js"></script>
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<div class="test">
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<div class="child"></div>
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</div>
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<script id="code" type="text/worklet">
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const DATA = {
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str: 'hello',
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num: 42,
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obj: {str2: 'world'},
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};
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registerLayout('parent', class {
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async intrinsicSizes() {}
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async layout([child], edges, constraints, styleMap) {
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const childFragment = await child.layoutNextFragment();
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// Use JSON.stringify to make sure the structured cloning worked.
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if (childFragment.data !== DATA &&
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JSON.stringify(childFragment.data) === JSON.stringify(DATA)) {
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return {autoBlockSize: 100, childFragments: [childFragment]};
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}
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return {autoBlockSize: 0, childFragments: [childFragment]};
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}
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});
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registerLayout('child', class {
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async intrinsicSizes() {}
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async layout(children, edges, constraints, styleMap) {
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return {autoBlockSize: 10, data: DATA};
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}
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});
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</script>
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<script>
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importWorkletAndTerminateTestAfterAsyncPaint(CSS.layoutWorklet, document.getElementById('code').textContent);
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</script>
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</html>
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