ladybird/Libraries/LibWeb/CSS/CSSNumericValue.h
Sam Atkins a139ad1c44
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LibWeb/CSS: Implement CSSNumericValue.to()
Tries to convert the CSSNumericValue to a CSSUnitValue with the given
unit.

This gets us the remaining 11 WPT subtests for this method.
2025-09-12 13:45:41 +02:00

77 lines
2.3 KiB
C++

/*
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <LibWeb/Bindings/CSSNumericValuePrototype.h>
#include <LibWeb/CSS/CSSStyleValue.h>
#include <LibWeb/CSS/NumericType.h>
#include <LibWeb/WebIDL/Types.h>
namespace Web::CSS {
struct CSSNumericType {
Optional<WebIDL::Long> length;
Optional<WebIDL::Long> angle;
Optional<WebIDL::Long> time;
Optional<WebIDL::Long> frequency;
Optional<WebIDL::Long> resolution;
Optional<WebIDL::Long> flex;
Optional<WebIDL::Long> percent;
Optional<Bindings::CSSNumericBaseType> percent_hint;
};
// https://drafts.css-houdini.org/css-typed-om-1/#typedefdef-cssnumberish
using CSSNumberish = Variant<double, GC::Root<CSSNumericValue>>;
// https://drafts.css-houdini.org/css-typed-om-1/#cssnumericvalue-sum-value
struct SumValueItem {
double value;
UnitMap unit_map;
};
using SumValue = Vector<SumValueItem>;
// https://drafts.css-houdini.org/css-typed-om-1/#cssnumericvalue
class CSSNumericValue : public CSSStyleValue {
WEB_PLATFORM_OBJECT(CSSNumericValue, CSSStyleValue);
GC_DECLARE_ALLOCATOR(CSSNumericValue);
public:
struct SerializationParams {
Optional<double> minimum {};
Optional<double> maximum {};
bool nested { false };
bool parenless { false };
};
virtual ~CSSNumericValue() override = default;
bool equals_for_bindings(Vector<CSSNumberish>) const;
virtual bool is_equal_numeric_value(GC::Ref<CSSNumericValue> other) const = 0;
WebIDL::ExceptionOr<GC::Ref<CSSUnitValue>> to(FlyString const& unit) const;
virtual Optional<SumValue> create_a_sum_value() const = 0;
CSSNumericType type_for_bindings() const;
NumericType const& type() const { return m_type; }
virtual String to_string() const final override { return to_string({}); }
String to_string(SerializationParams const&) const;
static WebIDL::ExceptionOr<GC::Ref<CSSNumericValue>> parse(JS::VM&, String const& css_text);
protected:
explicit CSSNumericValue(JS::Realm&, NumericType);
virtual void initialize(JS::Realm&) override;
NumericType m_type;
};
GC::Ref<CSSNumericValue> rectify_a_numberish_value(JS::Realm&, CSSNumberish const&, Optional<FlyString> unit = {});
}