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/*
* Copyright (C) 2024-2025 Samuel Weinig <sam@webkit.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CSSPrimitiveNumericTypes.h"
namespace WebCore {
namespace CSS {
using namespace Literals;
// <ratio> = <number [0,∞]> [ / <number [0,∞]> ]?
// https://drafts.csswg.org/css-values-4/#ratio-value
struct Ratio {
Number<Nonnegative> numerator;
Number<Nonnegative> denominator { 1_css_number };
bool operator==(const Ratio&) const = default;
};
template<size_t I> const auto& get(const Ratio& value)
{
if constexpr (!I)
return value.numerator;
else if constexpr (I == 1)
return value.denominator;
}
// `Ratio` is special-cased to return a `CSSRatioValue`.
template<> struct CSSValueCreation<Ratio> { Ref<CSSValue> operator()(CSSValuePool&, const Ratio&); };
} // namespace CSS
} // namespace WebCore
DEFINE_SLASH_SEPARATED_TUPLE_LIKE_CONFORMANCE(WebCore::CSS::Ratio, 2)
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