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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 "StyleColor.h"
#include "StyleURL.h"
namespace WebCore {
namespace Style {
enum class ForVisitedLink : bool;
enum class SVGPaintType : uint8_t {
RGBColor,
None,
CurrentColor,
URINone,
URICurrentColor,
URIRGBColor,
URI
};
// <paint> = none | <color> | <url> [none | <color>]? | context-fill | context-stroke
// NOTE: `context-fill` and `context-stroke` are not implemented.
// https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint
struct SVGPaint {
// Models Variant<CSS::Keyword::None, Color, URL, SpaceSeparatedTuple<URL, CSS::Keyword::None>, SpaceSeparatedTuple<URL, Color>>;
SVGPaintType type;
URL url { URL::none() };
Color color { Color::currentColor() };
template<typename F> decltype(auto) switchOn(F&& functor) const
{
switch (type) {
case SVGPaintType::None:
return functor(CSS::Keyword::None { });
case SVGPaintType::RGBColor:
case SVGPaintType::CurrentColor:
return functor(color);
case SVGPaintType::URINone:
return functor(SpaceSeparatedTuple { url, CSS::Keyword::None { } });
case SVGPaintType::URICurrentColor:
case SVGPaintType::URIRGBColor:
return functor(SpaceSeparatedTuple { url, color });
case SVGPaintType::URI:
return functor(url);
}
RELEASE_ASSERT_NOT_REACHED();
}
bool operator==(const SVGPaint&) const = default;
};
// MARK: - Conversion
template<> struct CSSValueConversion<SVGPaint> { auto operator()(BuilderState&, const CSSValue&, ForVisitedLink) -> SVGPaint; };
// MARK: - Blending
template<> struct Blending<SVGPaint> {
auto equals(const SVGPaint&, const SVGPaint&, const RenderStyle&, const RenderStyle&) -> bool;
auto canBlend(const SVGPaint&, const SVGPaint&) -> bool;
auto blend(const SVGPaint&, const SVGPaint&, const RenderStyle&, const RenderStyle&, const BlendingContext&) -> SVGPaint;
};
// MARK: - Logging
WTF::TextStream& operator<<(WTF::TextStream&, SVGPaintType);
} // namespace Style
} // namespace WebCore
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::SVGPaint)
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