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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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35
Userland/Libraries/LibWeb/DOM/Node.h
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@ -52,6 +52,39 @@ enum class FragmentSerializationMode {
Outer,
};
#define ENUMERATE_STYLE_INVALIDATION_REASONS(X) \
X(AdoptedStyleSheetsList) \
X(AnimationEffectSetAssociatedAnimation) \
X(CSSFontLoaded) \
X(CSSImportRule) \
X(DidLoseFocus) \
X(DidReceiveFocus) \
X(EditingInsertion) \
X(ElementAttributeChange) \
X(ElementSetShadowRoot) \
X(HTMLInputElementSetChecked) \
X(HTMLObjectElementUpdateLayoutAndChildObjects) \
X(HTMLSelectElementSetIsOpen) \
X(Hover) \
X(MediaQueryChangedMatchState) \
X(NavigableSetViewportSize) \
X(NodeInsertBefore) \
X(NodeRemove) \
X(NodeSetTextContent) \
X(Other) \
X(SetSelectorText) \
X(SettingsChange) \
X(StyleSheetDeleteRule) \
X(StyleSheetInsertRule) \
X(StyleSheetListAddSheet) \
X(StyleSheetListRemoveSheet)
enum class StyleInvalidationReason {
#define __ENUMERATE_STYLE_INVALIDATION_REASON(reason) reason,
ENUMERATE_STYLE_INVALIDATION_REASONS(__ENUMERATE_STYLE_INVALIDATION_REASON)
#undef __ENUMERATE_STYLE_INVALIDATION_REASON
};
class Node : public EventTarget {
WEB_PLATFORM_OBJECT(Node, EventTarget);
@ -227,7 +260,7 @@ public:
bool child_needs_style_update() const { return m_child_needs_style_update; }
void set_child_needs_style_update(bool b) { m_child_needs_style_update = b; }
void invalidate_style();
void invalidate_style(StyleInvalidationReason);
void set_document(Badge<Document>, Document&);