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https://github.com/LadybirdBrowser/ladybird.git
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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.
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/*
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* Copyright (c) 2023, Sam Atkins <atkinssj@serenityos.org>
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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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#include <LibWeb/CSS/Ratio.h>
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namespace Web::CSS {
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class RatioStyleValue final : public StyleValueWithDefaultOperators<RatioStyleValue> {
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public:
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static ValueComparingNonnullRefPtr<RatioStyleValue const> create(Ratio ratio)
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{
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return adopt_ref(*new (nothrow) RatioStyleValue(move(ratio)));
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}
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virtual ~RatioStyleValue() override = default;
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Ratio const& ratio() const { return m_ratio; }
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Ratio& ratio() { return m_ratio; }
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virtual String to_string(SerializationMode) const override { return m_ratio.to_string(); }
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Vector<Parser::ComponentValue> tokenize() const override
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{
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return {
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Parser::Token::create_number(Number { Number::Type::Number, m_ratio.numerator() }),
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Parser::Token::create_whitespace(" "_string),
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Parser::Token::create_delim('/'),
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Parser::Token::create_whitespace(" "_string),
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Parser::Token::create_number(Number { Number::Type::Number, m_ratio.denominator() }),
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};
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}
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bool properties_equal(RatioStyleValue const& other) const { return m_ratio == other.m_ratio; }
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private:
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RatioStyleValue(Ratio&& ratio)
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: StyleValueWithDefaultOperators(Type::Ratio)
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, m_ratio(ratio)
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{
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}
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Ratio m_ratio;
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};
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}
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