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https://github.com/LadybirdBrowser/ladybird
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97e2b05004
Compare invalidation sets, rules, and plans structurally so repeated descendant and sibling invalidation entries can be merged even when they were built as separate payload objects. Also deduplicate pending and active descendant invalidations in the style invalidator so equivalent rules are not re-applied as the DOM walk descends. This reduces :has() invalidation fanout while keeping behavior the same.
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
/*
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* Copyright (c) 2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGC/CellAllocator.h>
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#include <LibWeb/CSS/StyleInvalidationData.h>
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#include <LibWeb/DOM/StyleInvalidationReason.h>
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#include <LibWeb/Forward.h>
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namespace Web::DOM {
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class StyleInvalidator : public GC::Cell {
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GC_CELL(StyleInvalidator, GC::Cell);
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GC_DECLARE_ALLOCATOR(StyleInvalidator);
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public:
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void invalidate(Node& node);
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bool enqueue_invalidation_plan(Node&, StyleInvalidationReason, CSS::InvalidationPlan const&);
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bool has_pending_invalidations() const { return !m_pending_invalidations.is_empty(); }
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virtual void visit_edges(Cell::Visitor& visitor) override;
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private:
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struct PendingDescendantInvalidation {
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StyleInvalidationReason reason;
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CSS::DescendantInvalidationRule rule;
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bool operator==(PendingDescendantInvalidation const&) const = default;
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};
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void add_pending_invalidation(GC::Ref<Node>, StyleInvalidationReason, CSS::InvalidationPlan const&);
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void apply_invalidation_plan(Element&, StyleInvalidationReason, CSS::InvalidationPlan const&, bool& invalidate_entire_subtree);
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void apply_sibling_invalidation(Element&, StyleInvalidationReason, CSS::SiblingInvalidationRule const&);
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void perform_pending_style_invalidations(Node& node, bool invalidate_entire_subtree);
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HashMap<GC::Ref<Node>, Vector<PendingDescendantInvalidation>> m_pending_invalidations;
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Vector<PendingDescendantInvalidation> m_active_descendant_invalidations;
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};
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}
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