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https://github.com/LadybirdBrowser/ladybird
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3b90eb1d49
When a parent element's display property changes (e.g., to flex or grid), children may need to be blockified or un-blockified. Previously, children only received a recompute_inherited_style() call which doesn't run the blockification logic. This patch adds a parent_display_changed flag to the recursive style update that forces children to get a full style recompute when their parent's display change triggers a layout tree rebuild.
30 lines
1.0 KiB
HTML
30 lines
1.0 KiB
HTML
<!DOCTYPE html>
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<link rel="author" href="mailto:kling@ladybird.org">
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<script src="../include.js"></script>
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<style>
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#container { display: block; }
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</style>
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<div id="container">
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<span id="child">test</span>
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</div>
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<script>
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test(() => {
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const container = document.getElementById("container");
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const child = document.getElementById("child");
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// Initially, span should be inline
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println(`Initial child display: ${getComputedStyle(child).display}`);
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// Change parent to flex - child should get blockified
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container.style.display = "flex";
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// Query color first (doesn't need layout) to trigger only update_style()
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println(`Color after flex: ${getComputedStyle(child).color}`);
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println(`Display after flex: ${getComputedStyle(child).display}`);
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// Change parent back to block - child should un-blockify
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container.style.display = "block";
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println(`Display after block: ${getComputedStyle(child).display}`);
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});
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</script>
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