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/*
* Copyright (C) 2016-2023 Apple Inc. All rights reserved.
* Copyright (C) 2024 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 <array>
#include <optional>
namespace WebCore {
namespace CSS {
struct BorderImageComponents;
struct BorderRadius;
struct PropertyParserState;
}
class CSSParserTokenRange;
class CSSValue;
enum CSSPropertyID : uint16_t;
namespace CSSPropertyParserHelpers {
// Default value of the `fill` parameter for `border-image-slice`.
enum class BorderImageSliceFillDefault : bool { No, Yes };
// Legacy behavior needed by -webkit-border-image that makes fixed border slices also set the border widths.
enum class BorderImageWidthOverridesWidthForLength : bool { No, Yes };
// MARK: - Border Radius
// <'border-radius'> = <length-percentage [0,∞]>{1,4} [ / <length-percentage [0,∞]>{1,4} ]?
// https://drafts.csswg.org/css-backgrounds/#propdef-border-radius
std::optional<CSS::BorderRadius> consumeUnresolvedBorderRadius(CSSParserTokenRange&, CSS::PropertyParserState&);
// Non-standard -webkit-border-radius.
std::optional<CSS::BorderRadius> consumeUnresolvedWebKitBorderRadius(CSSParserTokenRange&, CSS::PropertyParserState&);
// MARK: - Border Image
// <'border-image-slice'> = [<number [0,∞]> | <percentage [0,∞]>]{1,4} && fill?
// https://drafts.csswg.org/css-backgrounds/#propdef-border-image-slice
RefPtr<CSSValue> consumeBorderImageSlice(CSSParserTokenRange&, CSS::PropertyParserState&, BorderImageSliceFillDefault = BorderImageSliceFillDefault::No);
// <'border-image-width'> = [ <length-percentage [0,∞]> | <number [0,∞]> | auto ]{1,4}
// https://drafts.csswg.org/css-backgrounds/#propdef-border-image-width
RefPtr<CSSValue> consumeBorderImageWidth(CSSParserTokenRange&, CSS::PropertyParserState&, BorderImageWidthOverridesWidthForLength = BorderImageWidthOverridesWidthForLength::No);
// https://drafts.csswg.org/css-backgrounds/#border-image
std::optional<CSS::BorderImageComponents> consumeBorderImageComponents(CSSParserTokenRange&, CSS::PropertyParserState&, BorderImageSliceFillDefault = BorderImageSliceFillDefault::No, BorderImageWidthOverridesWidthForLength = BorderImageWidthOverridesWidthForLength::No);
// MARK: - Background Size
// <bg-size> = [ <length-percentage [0,∞]> | auto ]{1,2} | cover | contain
// https://drafts.csswg.org/css-backgrounds/#background-size
RefPtr<CSSValue> consumeSingleBackgroundSize(CSSParserTokenRange&, CSS::PropertyParserState&);
// Non-standard.
RefPtr<CSSValue> consumeSingleWebkitBackgroundSize(CSSParserTokenRange&, CSS::PropertyParserState&);
// <single-mask-size> = <bg-size>
// https://drafts.fxtf.org/css-masking/#the-mask-size
RefPtr<CSSValue> consumeSingleMaskSize(CSSParserTokenRange&, CSS::PropertyParserState&);
// MARK: - Background Repeat
// <repeat-style> = repeat-x | repeat-y | [repeat | space | round | no-repeat]{1,2}
// https://drafts.csswg.org/css-backgrounds/#typedef-repeat-style
RefPtr<CSSValue> consumeRepeatStyle(CSSParserTokenRange&, CSS::PropertyParserState&);
// MARK: - Shadows
// <'box-shadow'> = none | <shadow>#
// https://drafts.csswg.org/css-backgrounds/#propdef-box-shadow
RefPtr<CSSValue> consumeBoxShadow(CSSParserTokenRange&, CSS::PropertyParserState&);
// Non-standard.
RefPtr<CSSValue> consumeWebkitBoxShadow(CSSParserTokenRange&, CSS::PropertyParserState&);
// MARK: - Reflection (non-standard)
// Non-standard addition.
RefPtr<CSSValue> consumeWebkitBoxReflect(CSSParserTokenRange&, CSS::PropertyParserState&);
// MARK: Utilities for filling in rects / quads in the "margin" form.
// - if only 1 value, `a`, is provided, set top, bottom, right & left to `a`.
// - if only 2 values, `a` and `b` are provided, set top & bottom to `a`, right & left to `b`.
// - if only 3 values, `a`, `b`, and `c` are provided, set top to `a`, right to `b`, bottom to `c`, & left to `b`.
template<typename Container, typename T> Container completeQuad(T a)
{
return Container { a, a, a, a };
}
template<typename Container, typename T> Container completeQuad(T a, T b)
{
return Container { a, b, a, b };
}
template<typename Container, typename T> Container completeQuad(T a, T b, T c)
{
return Container { a, b, c, b };
}
template<typename Container, typename T> Container completeQuadFromArray(std::array<std::optional<T>, 4> optionals)
{
ASSERT(optionals[0].has_value());
if (!optionals[1])
return completeQuad<Container>(WTFMove(*optionals[0]));
if (!optionals[2])
return completeQuad<Container>(WTFMove(*optionals[0]), WTFMove(*optionals[1]));
if (!optionals[3])
return completeQuad<Container>(WTFMove(*optionals[0]), WTFMove(*optionals[1]), WTFMove(*optionals[2]));
return Container { WTFMove(*optionals[0]), WTFMove(*optionals[1]), WTFMove(*optionals[2]), WTFMove(*optionals[3]) };
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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