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Update web-platform-tests to revision 06f77f6bfaa86f3643a79f1ec2c49c6b6955cf18
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<!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/#invoke-a-layout-callback">
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<link rel="match" href="fallback-ref.html">
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<meta name="assert" content="This test checks that a layout() class returning an invalid fragment will fallback to block layout." />
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<style>
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.test {
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background: red;
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border: solid 2px;
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width: 100px;
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}
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.test > div {
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height: 100px;
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}
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@supports (display: layout(bad-request)) {
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.test {
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display: layout(bad-request);
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background: green;
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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></div>
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</div>
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<script id="code" type="text/worklet">
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registerLayout('bad-request', class {
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static get inputProperties() { return ['--fail']; }
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*intrinsicSizes() {}
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*layout(children, _, __, styleMap) {
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if (styleMap.get('--fail').toString() !== 'true') {
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this.fragment = yield children[0].layoutNextFragment({});
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}
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// Return, if the fragment is invalid (we skipped the if statement above)
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// we should fallback to block layout.
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return {autoBlockSize: 0, childFragments: [this.fragment]};
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}
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});
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</script>
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<script>
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function raf() {
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return new Promise((resolve) => {
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requestAnimationFrame(() => {
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resolve();
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});
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});
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}
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(async function() {
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if (typeof CSS.layoutWorklet === 'undefined') {
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takeScreenshot();
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return;
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}
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await importWorklet(CSS.layoutWorklet, document.getElementById('code').textContent);
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// Ensure that all instances have a child to perform an invalid layout upon.
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const test = document.getElementsByClassName('test')[0];
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for (let i = 0; i < 100; i++) {
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test.innerHTML = '<div><div>';
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await raf();
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}
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// The next layout should mean that we will fallback to block.
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test.innerHTML = '<div></div>';
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test.style.setProperty('--fail', 'true');
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// Finish up the test.
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await raf();
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await raf();
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takeScreenshot();
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})();
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</script>
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</html>
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