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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.
48 lines
1.3 KiB
C++
48 lines
1.3 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/StyleValues/CSSUnitValue.h>
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namespace Web::CSS {
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class NumberStyleValue final : public CSSUnitValue {
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public:
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static ValueComparingNonnullRefPtr<NumberStyleValue const> create(double value)
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{
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return adopt_ref(*new (nothrow) NumberStyleValue(value));
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}
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double number() const { return m_value; }
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virtual double value() const override { return m_value; }
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virtual StringView unit() const override { return "number"sv; }
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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 equals(CSSStyleValue const& other) const override
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{
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if (type() != other.type())
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return false;
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auto const& other_number = other.as_number();
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return m_value == other_number.m_value;
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}
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private:
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explicit NumberStyleValue(double value)
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: CSSUnitValue(Type::Number)
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, m_value(value)
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{
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}
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double m_value { 0 };
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};
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}
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