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https://github.com/LadybirdBrowser/ladybird
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6069bcdcc7
StyleInvalidator applies CSS invalidation plans and matches selector features while walking DOM nodes. Move the class from DOM into the CSS::Invalidation namespace alongside the other invalidation helpers. Document still owns the invalidator and DOM nodes still expose the state that gets marked, but the policy for applying invalidation plans now has a home with the rest of the CSS invalidation code.
45 lines
1.6 KiB
C++
45 lines
1.6 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::CSS::Invalidation {
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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(DOM::Node& node);
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bool enqueue_invalidation_plan(DOM::Node&, DOM::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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DOM::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<DOM::Node>, DOM::StyleInvalidationReason, CSS::InvalidationPlan const&);
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void apply_invalidation_plan(DOM::Element&, DOM::StyleInvalidationReason, CSS::InvalidationPlan const&, bool& invalidate_entire_subtree);
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void apply_sibling_invalidation(DOM::Element&, DOM::StyleInvalidationReason, CSS::SiblingInvalidationRule const&);
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void perform_pending_style_invalidations(DOM::Node& node, bool invalidate_entire_subtree);
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HashMap<GC::Ref<DOM::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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