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LibWeb: Allow anonymous layout boxes to keep their intrinsic size cache

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Instead of indiscriminately clearing the cache for all anonymous boxes,
we now only clear it for those that were generated by a non-anonymous
box in need of layout update.

This increases the cache hit rate and allows us to avoid more work.
This commit is contained in:
Andreas Kling 2025-04-19 01:14:53 +02:00 • committed by Andreas Kling
commit fa9c463ffd
Notes: github-actions[bot] 2025-04-20 22:32:08 +00:00
3 changed files with 15 additions and 1 deletions
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2
Libraries/LibWeb/DOM/Document.cpp
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@ -1332,7 +1332,7 @@ void Document::update_layout(UpdateLayoutReason reason)
if (auto dom_node = child.dom_node(); dom_node && dom_node->is_element()) {
child.set_has_size_containment(as<Element>(*dom_node).has_size_containment());
}
if (child.needs_layout_update() || child.is_anonymous()) {
if (child.needs_layout_update()) {
child.reset_cached_intrinsic_sizes();
}
child.clear_contained_abspos_children();