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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
* Copyright (C) 2013, 2014 Igalia S.L.
* 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR 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 "StyleLengthWrapper.h"
namespace WebCore {
namespace Style {
using namespace CSS::Literals;
// FIXME: Make LengthWrapperBase support additional numeric types in addition to the <length-percentage> one and then replace GridTrackBreadth with that.
struct GridTrackBreadthLength : LengthWrapperBase<LengthPercentage<CSS::Nonnegative>, CSS::Keyword::MinContent, CSS::Keyword::MaxContent, CSS::Keyword::Auto> {
using Base::Base;
};
// <track-breadth> = <length-percentage [0,inf]> | <flex [0,inf]> | min-content | max-content | auto
// https://www.w3.org/TR/css-grid-1/#typedef-track-breadth
class GridTrackBreadth {
public:
using Fixed = GridTrackBreadthLength::Fixed;
using Percentage = GridTrackBreadthLength::Percentage;
using Calc = GridTrackBreadthLength::Calc;
using Flex = Style::Flex<CSS::Nonnegative>;
GridTrackBreadth(Fixed fixed)
: m_length(fixed)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(Percentage percent)
: m_length(percent)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(GridTrackBreadthLength&& length)
: m_length(WTFMove(length))
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(Flex flex)
: m_length(0_css_px)
, m_flex(flex)
, m_type(GridTrackBreadthType::Flex)
{
}
GridTrackBreadth(CSS::Keyword::MinContent keyword)
: m_length(keyword)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(CSS::Keyword::MaxContent keyword)
: m_length(keyword)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(CSS::Keyword::Auto keyword)
: m_length(keyword)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(CSS::ValueLiteral<CSS::LengthUnit::Px> literal)
: m_length(literal)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(CSS::ValueLiteral<CSS::PercentageUnit::Percentage> literal)
: m_length(literal)
, m_flex(0_css_fr)
, m_type(GridTrackBreadthType::Length)
{
}
GridTrackBreadth(CSS::ValueLiteral<CSS::FlexUnit::Fr> literal)
: m_length(0_css_px)
, m_flex(literal)
, m_type(GridTrackBreadthType::Flex)
{
}
bool isLength() const { return m_type == GridTrackBreadthType::Length; }
bool isFlex() const { return m_type == GridTrackBreadthType::Flex; }
const GridTrackBreadthLength& length() const { ASSERT(isLength()); return m_length; }
Flex flex() const { ASSERT(isFlex()); return m_flex; }
bool isPercentOrCalculated() const { return m_type == GridTrackBreadthType::Length && m_length.isPercentOrCalculated(); }
bool isContentSized() const { return m_type == GridTrackBreadthType::Length && (m_length.isAuto() || m_length.isMinContent() || m_length.isMaxContent()); }
bool isAuto() const { return m_type == GridTrackBreadthType::Length && m_length.isAuto(); }
template<typename... F> decltype(auto) switchOn(F&&... f) const
{
auto visitor = WTF::makeVisitor(std::forward<F>(f)...);
if (isFlex())
return visitor(m_flex);
return WTF::switchOn(m_length, [&](const auto& value) { return visitor(value); });
}
bool operator==(const GridTrackBreadth&) const = default;
private:
GridTrackBreadthLength m_length;
Flex m_flex;
enum class GridTrackBreadthType : bool { Length, Flex };
GridTrackBreadthType m_type;
};
// MARK: - Conversion
template<> struct CSSValueConversion<GridTrackBreadth> { auto operator()(BuilderState&, const CSSPrimitiveValue&) -> GridTrackBreadth; };
// MARK: - Blending
template<> struct Blending<GridTrackBreadth> {
auto blend(const GridTrackBreadth&, const GridTrackBreadth&, const BlendingContext&) -> GridTrackBreadth;
};
} // namespace Style
} // namespace WebCore
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::GridTrackBreadthLength)
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::GridTrackBreadth)
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