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5aba457009
A couple of arbitrary substitution functions require us to get or produce some style value, and then substitute its ComponentValues into the original ComponentValue list. So this commit gives CSSStyleValue a tokenize() method that does so. Apart from a couple of unusual cases like the guaranteed-invalid value, style values can all be converted into ComponentValues by serializing them as a string, and then parsing that as a list of component values. That feels unnecessarily inefficient in most cases though, so I've implemented faster overrides for a lot of the basic style value classes, but left that serialize-and-reparse method as the fallback.
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
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* Copyright (c) 2022-2023, 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/CSSStyleValue.h>
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namespace Web::CSS {
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class StyleValueList final : public StyleValueWithDefaultOperators<StyleValueList> {
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public:
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enum class Separator {
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Space,
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Comma,
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};
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static ValueComparingNonnullRefPtr<StyleValueList> create(StyleValueVector&& values, Separator separator)
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{
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return adopt_ref(*new (nothrow) StyleValueList(move(values), separator));
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}
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size_t size() const { return m_properties.values.size(); }
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StyleValueVector const& values() const { return m_properties.values; }
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ValueComparingNonnullRefPtr<CSSStyleValue const> value_at(size_t i, bool allow_loop) const
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{
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if (allow_loop)
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return m_properties.values[i % size()];
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return m_properties.values[i];
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}
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virtual String to_string(SerializationMode) const override;
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virtual Vector<Parser::ComponentValue> tokenize() const override;
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bool properties_equal(StyleValueList const& other) const { return m_properties == other.m_properties; }
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Separator separator() const { return m_properties.separator; }
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private:
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StyleValueList(StyleValueVector&& values, Separator separator)
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: StyleValueWithDefaultOperators(Type::ValueList)
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, m_properties { .separator = separator, .values = move(values) }
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{
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}
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virtual void set_style_sheet(GC::Ptr<CSSStyleSheet>) override;
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struct Properties {
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Separator separator;
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StyleValueVector values;
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bool operator==(Properties const&) const;
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} m_properties;
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};
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}
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