| <!DOCTYPE html> |
| <html class=reftest-wait> |
| <link rel="help" href="https://drafts.css-houdini.org/css-layout-api/#dom-layoutfragment-data"> |
| <link rel="match" href="green-square-ref.html"> |
| <meta name="assert" content="This test checks that LayoutFragment#data is immutable between child layout passes." /> |
| <style> |
| .test { |
| background: red; |
| width: 100px; |
| } |
| |
| @supports (display: layout(parent)) { |
| .test { |
| display: layout(parent); |
| background: green; |
| } |
| |
| .child { |
| display: layout(child); |
| } |
| } |
| </style> |
| <script src="/common/reftest-wait.js"></script> |
| <script src="/common/worklet-reftest.js"></script> |
| |
| <div class="test"> |
| <div class="child"></div> |
| </div> |
| |
| <script id="code" type="text/worklet"> |
| registerLayout('parent', class { |
| async intrinsicSizes() {} |
| async layout([child], edges, constraints, styleMap) { |
| |
| const childFragment10 = await child.layoutNextFragment({fixedInlineSize: 10}); |
| |
| // First layout data should be "10". |
| if (childFragment10.data.size !== 10) { |
| return {autoBlockSize: 0, childFragments: [childFragment10]}; |
| } |
| |
| const childFragment20 = await child.layoutNextFragment({fixedInlineSize: 20}); |
| |
| // Second layout data should be "20". |
| if (childFragment20.data.size !== 20) { |
| return {autoBlockSize: 0, childFragments: [childFragment10]}; |
| } |
| |
| // First layout data should still be "10". |
| if (childFragment10.data.size !== 10) { |
| return {autoBlockSize: 0, childFragments: [childFragment10]}; |
| } |
| |
| return {autoBlockSize: 100, childFragments: [childFragment20]}; |
| } |
| }); |
| |
| registerLayout('child', class { |
| async intrinsicSizes() {} |
| async layout(children, edges, constraints, styleMap) { |
| return {autoBlockSize: 10, data: {size: constraints.fixedInlineSize}}; |
| } |
| }); |
| </script> |
| |
| <script> |
| importWorkletAndTerminateTestAfterAsyncPaint(CSS.layoutWorklet, document.getElementById('code').textContent); |
| </script> |
| </html> |
