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b4ef1e9c15
Record when computed properties depend on viewport metrics while resolving lengths. Carry that information through font metrics so font-relative lengths can be associated with viewport-sized fonts. This keeps the dependency tracking local to style computation and gives later viewport resize invalidation a way to find affected elements.
40 lines
1 KiB
C++
40 lines
1 KiB
C++
/*
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* Copyright (c) 2025, Callum Law <callumlaw1709@outlook.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 <LibWeb/CSS/Length.h>
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#include <LibWeb/CSS/PreferredColorScheme.h>
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#include <LibWeb/DOM/AbstractElement.h>
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namespace Web::CSS {
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struct ComputationContext {
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Length::ResolutionContext length_resolution_context;
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Optional<DOM::AbstractElement> abstract_element {};
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Optional<PreferredColorScheme> color_scheme {};
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void reset_viewport_metric_dependency_tracking() const
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{
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m_did_resolve_viewport_relative_length = false;
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length_resolution_context.set_did_resolve_viewport_relative_length(m_did_resolve_viewport_relative_length);
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}
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bool depends_on_viewport_metrics() const
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{
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return m_did_resolve_viewport_relative_length;
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}
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void visit_edges(GC::Cell::Visitor& visitor)
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{
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if (abstract_element.has_value())
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abstract_element->visit(visitor);
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}
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mutable bool m_did_resolve_viewport_relative_length { false };
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};
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}
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