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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/StyleValueTypes.h>
#include <WebCore/TextSpacing.h>
namespace WebCore {
namespace Style {
// <'text-autospace'> = normal | auto | no-autospace | [ ideograph-alpha || ideograph-numeric ]
// FIXME: Current spec is `normal | auto | no-autospace | [ ideograph-alpha || ideograph-numeric || punctuation ] || [ insert | replace ]`
// https://drafts.csswg.org/css-text-4/#propdef-text-autospace
struct TextAutospace {
constexpr TextAutospace(CSS::Keyword::Normal) : m_value { WebCore::TextAutospace::Type::Normal } { }
constexpr TextAutospace(CSS::Keyword::Auto) : m_value { WebCore::TextAutospace::Type::Auto } { }
constexpr TextAutospace(CSS::Keyword::NoAutospace) : m_value { } { }
constexpr TextAutospace(CSS::Keyword::IdeographAlpha) : m_value { WebCore::TextAutospace::Type::IdeographAlpha } { }
constexpr TextAutospace(CSS::Keyword::IdeographNumeric) : m_value { WebCore::TextAutospace::Type::IdeographNumeric } { }
constexpr TextAutospace(CSS::Keyword::IdeographAlpha, CSS::Keyword::IdeographNumeric) : m_value { { WebCore::TextAutospace::Type::IdeographAlpha, WebCore::TextAutospace::Type::IdeographNumeric } } { }
constexpr TextAutospace(WebCore::TextAutospace value) : m_value { value } { }
constexpr bool isNormal() const { return m_value.isNormal(); }
constexpr bool isAuto() const { return m_value.isAuto(); }
constexpr bool isNoAutospace() const { return m_value.isNoAutospace(); }
constexpr bool hasIdeographAlpha() const { return m_value.hasIdeographAlpha(); }
constexpr bool hasIdeographNumeric() const { return m_value.hasIdeographNumeric(); }
template<typename... F> constexpr decltype(auto) switchOn(F&&... f) const
{
auto visitor = WTF::makeVisitor(std::forward<F>(f)...);
if (isNormal())
return visitor(CSS::Keyword::Normal { });
if (isAuto())
return visitor(CSS::Keyword::Auto { });
if (isNoAutospace())
return visitor(CSS::Keyword::NoAutospace { });
if (hasIdeographAlpha()) {
if (hasIdeographNumeric())
return visitor(SpaceSeparatedTuple { CSS::Keyword::IdeographAlpha { }, CSS::Keyword::IdeographNumeric { } });
return visitor(CSS::Keyword::IdeographAlpha { });
}
if (hasIdeographNumeric())
return visitor(CSS::Keyword::IdeographNumeric { });
RELEASE_ASSERT_NOT_REACHED();
}
bool shouldApplySpacing(WebCore::TextSpacing::CharacterClass firstCharacterClass, WebCore::TextSpacing::CharacterClass secondCharacterClass) const { return m_value.shouldApplySpacing(firstCharacterClass, secondCharacterClass); }
bool shouldApplySpacing(char32_t firstCharacter, char32_t secondCharacter) const { return m_value.shouldApplySpacing(firstCharacter, secondCharacter); }
constexpr bool operator==(const TextAutospace&) const = default;
private:
friend struct ToPlatform<TextAutospace>;
WebCore::TextAutospace m_value;
};
// MARK: - Conversion
template<> struct CSSValueConversion<TextAutospace> { auto operator()(BuilderState&, const CSSValue&) -> TextAutospace; };
// MARK: - Platform
template<> struct ToPlatform<TextAutospace> {
constexpr auto operator()(const TextAutospace& value) -> WebCore::TextAutospace
{
return value.m_value;
}
};
} // namespace Style
} // namespace WebCore
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::TextAutospace);
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