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/*
* Copyright (C) 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 <WebCore/StylePrimitiveNumericTypes.h>
namespace WebCore {
namespace Style {
// <'-webkit-initial-letter'> = normal | <number [0,∞]>{1,2}@(default=previous)
// NOTE: There is a standard `initial-letter` property with a different grammar that is not yet implemented.
// https://drafts.csswg.org/css-inline/#propdef-initial-letter
struct WebkitInitialLetter {
constexpr WebkitInitialLetter(CSS::Keyword::Normal)
{
}
constexpr WebkitInitialLetter(Number<CSS::Nonnegative, float> height)
: m_value { height, height }
{
}
constexpr WebkitInitialLetter(Number<CSS::Nonnegative, float> height, Number<CSS::Nonnegative, float> drop)
: m_value { height, drop }
{
}
constexpr bool isNormal() const { return m_value.first().isZero() && m_value.second().isZero(); }
constexpr float height() const { return m_value.first().value; }
constexpr float drop() const { return m_value.second().value; }
template<typename... F> decltype(auto) switchOn(F&&... f) const
{
auto visitor = WTF::makeVisitor(std::forward<F>(f)...);
if (isNormal())
return visitor(CSS::Keyword::Normal { });
return visitor(m_value);
}
bool operator==(const WebkitInitialLetter&) const = default;
private:
MinimallySerializingSpaceSeparatedPair<Number<CSS::Nonnegative, float>> m_value { 0, 0 };
};
// MARK: - Conversion
template<> struct CSSValueConversion<WebkitInitialLetter> { auto operator()(BuilderState&, const CSSValue&) -> WebkitInitialLetter; };
} // namespace Style
} // namespace WebCore
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::WebkitInitialLetter)
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