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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/RenderStyleConstants.h>
#include <WebCore/StyleValueTypes.h>
namespace WebCore {
namespace Style {
// <'scroll-snap-align'> = [ none | start | end | center ]{1,2}
// https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-align
struct ScrollSnapAlign {
constexpr ScrollSnapAlign(CSS::Keyword::None)
{
}
constexpr ScrollSnapAlign(ScrollSnapAxisAlignType bothAxes)
: blockAlign { bothAxes }
, inlineAlign { bothAxes }
{
}
constexpr ScrollSnapAlign(ScrollSnapAxisAlignType blockAlign, ScrollSnapAxisAlignType inlineAlign)
: blockAlign { blockAlign }
, inlineAlign { inlineAlign }
{
}
bool isNone() const { return blockAlign == ScrollSnapAxisAlignType::None && inlineAlign == ScrollSnapAxisAlignType::None; }
ScrollSnapAxisAlignType blockAlign { ScrollSnapAxisAlignType::None };
ScrollSnapAxisAlignType inlineAlign { ScrollSnapAxisAlignType::None };
constexpr bool operator==(const ScrollSnapAlign&) const = default;
};
template<size_t I> constexpr const auto& get(const ScrollSnapAlign& value)
{
if constexpr (!I)
return value.blockAlign;
else if constexpr (I == 1)
return value.inlineAlign;
}
// MARK: - Conversion
template<> struct CSSValueConversion<ScrollSnapAlign> { auto operator()(BuilderState&, const CSSValue&) -> ScrollSnapAlign; };
} // namespace Style
} // namespace WebCore
DEFINE_COALESCING_SPACE_SEPARATED_TUPLE_LIKE_CONFORMANCE(WebCore::Style::ScrollSnapAlign, 2)
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