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LibWeb: Note what's causing a style invalidation to happen

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You can now build with STYLE_INVALIDATION_DEBUG and get a debug stream
of reasons why style invalidations are happening and where.

I've rewritten this code many times, so instead of throwing it away once
again, I figured we should at least have it behind a flag.
This commit is contained in:
Andreas Kling 2024-09-04 10:01:08 +02:00 • committed by Andreas Kling
commit ddbfac38b0
Notes: github-actions[bot] 2024-09-08 07:46:37 +00:00
20 changed files with 92 additions and 38 deletions
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6
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -1385,9 +1385,9 @@ void Document::set_hovered_node(Node* node)
auto* common_ancestor = find_common_ancestor(old_hovered_node, m_hovered_node);
if (common_ancestor)
common_ancestor->invalidate_style();
common_ancestor->invalidate_style(StyleInvalidationReason::Hover);
else
invalidate_style();
invalidate_style(StyleInvalidationReason::Hover);
// https://w3c.github.io/uievents/#mouseout
if (old_hovered_node && old_hovered_node != m_hovered_node) {
@ -2716,7 +2716,7 @@ void Document::evaluate_media_rules()
if (any_media_queries_changed_match_state) {
style_computer().invalidate_rule_cache();
invalidate_style();
invalidate_style(StyleInvalidationReason::MediaQueryChangedMatchState);
invalidate_layout();
}
}