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b2d55e4caa
A lone CSSUnitValue can now be converted to a dimension StyleValue of the relevant type, as long as the property allows that type. If the value is out of the allowed range, it's wrapped in calc(). There are a few failing tests still, involving setting a negative percentage and expecting to read the computed value as 0. Those also fail in Chromium, and a similar negative-length test expects a negative computed value (not 0), so this appears to be an incorrect test. Also, we regress some of the `cursor` tests. This is because our "does property X accept type Y?" code is too naive: `cursor` is defined to accept "number [-∞,∞]" in the JSON, and that value range is used when clamping the result of calculations or interpolation. But because that entry is there, we think a single number is a valid value for `cursor`. Solving this generally is a larger task than I want to take on right now. :^)
49 lines
1.5 KiB
C++
49 lines
1.5 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/CSS/CSSNumericValue.h>
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namespace Web::CSS {
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// https://drafts.css-houdini.org/css-typed-om-1/#cssunitvalue
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class CSSUnitValue final : public CSSNumericValue {
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WEB_PLATFORM_OBJECT(CSSUnitValue, CSSNumericValue);
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GC_DECLARE_ALLOCATOR(CSSUnitValue);
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public:
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[[nodiscard]] static GC::Ref<CSSUnitValue> create(JS::Realm&, double value, FlyString unit);
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static GC::Ptr<CSSUnitValue> create_from_sum_value_item(JS::Realm&, SumValueItem const&);
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static WebIDL::ExceptionOr<GC::Ref<CSSUnitValue>> construct_impl(JS::Realm&, double value, FlyString unit);
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virtual ~CSSUnitValue() override = default;
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double value() const { return m_value; }
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void set_value(double value);
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FlyString const& unit() const { return m_unit; }
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String serialize_unit_value(Optional<double> minimum, Optional<double> maximum) const;
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GC::Ptr<CSSUnitValue> converted_to_unit(FlyString const& unit) const;
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virtual bool is_equal_numeric_value(GC::Ref<CSSNumericValue> other) const override;
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virtual Optional<SumValue> create_a_sum_value() const override;
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virtual WebIDL::ExceptionOr<NonnullRefPtr<StyleValue const>> create_an_internal_representation(PropertyNameAndID const&) const override;
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private:
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explicit CSSUnitValue(JS::Realm&, double value, FlyString unit, NumericType type);
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virtual void initialize(JS::Realm&) override;
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double m_value;
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FlyString m_unit;
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};
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}
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