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https://github.com/LadybirdBrowser/ladybird.git
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fac08ff8c6
Use StyleValue's computational-independence predicate when deciding which specified values to retain for inherited-style recomputation. Compound values such as shadows, filters, lists, and calc trees now reuse their existing dependency tracking instead of the old bare-length check. Treat missing tuple entries and keyword-only edge offsets as computationally independent. These nullable slots are part of the parsed value representation, and the inherited dependency tracking now uses the shared computational-independence query for specified values. Add viewport resize coverage for media query changes that update root font metrics while a descendant uses font-relative lengths inside box-shadow and filter values.
49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
/*
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* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
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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/StyleValues/PercentageStyleValue.h>
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#include <LibWeb/CSS/StyleValues/StyleValue.h>
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namespace Web::CSS {
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class EdgeStyleValue final : public StyleValueWithDefaultOperators<EdgeStyleValue> {
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public:
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static ValueComparingNonnullRefPtr<EdgeStyleValue const> create(Optional<PositionEdge> edge, RefPtr<StyleValue const> const& offset)
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{
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return adopt_ref(*new (nothrow) EdgeStyleValue(edge, offset));
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}
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virtual ~EdgeStyleValue() override = default;
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// This is nonnull as it is only called after resolving keywords
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NonnullRefPtr<StyleValue const> offset() const { return *m_properties.offset; }
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bool is_center(SerializationMode) const;
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virtual void serialize(StringBuilder&, SerializationMode) const override;
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ValueComparingNonnullRefPtr<EdgeStyleValue const> with_resolved_keywords() const;
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virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(ComputationContext const& computation_context) const override;
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bool properties_equal(EdgeStyleValue const& other) const { return m_properties == other.m_properties; }
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virtual bool is_computationally_independent() const override { return !m_properties.offset || m_properties.offset->is_computationally_independent(); }
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private:
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EdgeStyleValue(Optional<PositionEdge> edge, RefPtr<StyleValue const> const& offset)
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: StyleValueWithDefaultOperators(Type::Edge)
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, m_properties { .edge = edge, .offset = offset }
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{
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}
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struct Properties {
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Optional<PositionEdge> edge;
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ValueComparingRefPtr<StyleValue const> offset;
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bool operator==(Properties const&) const = default;
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} m_properties;
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};
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}
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