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277117eed5
Reifying the result gets quite ad-hoc. Firstly because "parse a component value" produces a ComponentValue, not a full StyleValue like we need for math functions. And second, because not all math functions can be reified as a CSSNumericValue: Besides the fact that I haven't implemented CalculatedStyleValue reification at all yet, there are a lot of math functions with no corresponding CSSMathValue in the spec yet. If the calculation tree contains any of those, the best we can do is reify as a CSSStyleValue, and that isn't a valid return value from CSSNumericValue.parse(). So, I made us throw a SyntaxError in those cases. This seems to match Chrome's behaviour. Spec issue: https://github.com/w3c/css-houdini-drafts/issues/1090
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/*
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* Copyright (c) 2025, Sam Atkins <sam@ladybird.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 <AK/FlyString.h>
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#include <LibWeb/Bindings/CSSNumericValuePrototype.h>
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#include <LibWeb/CSS/CSSStyleValue.h>
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#include <LibWeb/CSS/NumericType.h>
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#include <LibWeb/WebIDL/Types.h>
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namespace Web::CSS {
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struct CSSNumericType {
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WebIDL::Long length {};
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WebIDL::Long angle {};
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WebIDL::Long time {};
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WebIDL::Long frequency {};
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WebIDL::Long resolution {};
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WebIDL::Long flex {};
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WebIDL::Long percent {};
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Optional<Bindings::CSSNumericBaseType> percent_hint {};
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};
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// https://drafts.css-houdini.org/css-typed-om-1/#cssnumericvalue
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class CSSNumericValue : public CSSStyleValue {
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WEB_PLATFORM_OBJECT(CSSNumericValue, CSSStyleValue);
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GC_DECLARE_ALLOCATOR(CSSNumericValue);
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public:
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struct SerializationParams {
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Optional<double> minimum {};
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Optional<double> maximum {};
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bool nested { false };
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bool parenless { false };
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};
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virtual ~CSSNumericValue() override = default;
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CSSNumericType type_for_bindings() const;
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NumericType const& type() const { return m_type; }
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virtual String to_string() const final override { return to_string({}); }
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String to_string(SerializationParams const&) const;
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static WebIDL::ExceptionOr<GC::Ref<CSSNumericValue>> parse(JS::VM&, String const& css_text);
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protected:
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explicit CSSNumericValue(JS::Realm&, NumericType);
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virtual void initialize(JS::Realm&) override;
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NumericType m_type;
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};
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// https://drafts.css-houdini.org/css-typed-om-1/#typedefdef-cssnumberish
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using CSSNumberish = Variant<double, GC::Root<CSSNumericValue>>;
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GC::Ref<CSSNumericValue> rectify_a_numberish_value(JS::Realm&, CSSNumberish const&, Optional<FlyString> unit = {});
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}
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