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/*
* 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 "CSSCalcSymbolTable.h"
#include "CSSPrimitiveNumericRange.h"
#include "CSSToLengthConversionData.h"
namespace WebCore {
namespace Calculation {
enum class Category : uint8_t;
}
namespace CSSCalc {
struct Child;
struct Tree;
struct Abs;
struct Acos;
struct Anchor;
struct AnchorSize;
struct Asin;
struct Atan2;
struct Atan;
struct CanonicalDimension;
struct Clamp;
struct ContainerProgress;
struct Cos;
struct Exp;
struct Hypot;
struct Invert;
struct Log;
struct Max;
struct MediaProgress;
struct Min;
struct Mod;
struct Negate;
struct NonCanonicalDimension;
struct Number;
struct Percentage;
struct Pow;
struct Product;
struct Progress;
struct Random;
struct Rem;
struct RoundDown;
struct RoundNearest;
struct RoundToZero;
struct RoundUp;
struct Sign;
struct Sin;
struct Sqrt;
struct Sum;
struct Symbol;
struct Tan;
// https://drafts.csswg.org/css-values-4/#calc-simplification
struct SimplificationOptions {
// `category` represents the context in which the simplification is taking place.
Calculation::Category category;
// `range` represents the allowed numeric range for the calculated result.
CSS::Range range;
// `conversionData` contains information needed to convert length units into their canonical forms.
std::optional<CSSToLengthConversionData> conversionData;
// `symbolTable` contains information needed to convert unresolved symbols into Numeric values.
CSSCalcSymbolTable symbolTable;
// `allowZeroValueLengthRemovalFromSum` allows removal of 0 value lengths (px, em, etc.) from Sum operations.
bool allowZeroValueLengthRemovalFromSum = false;
};
// MARK: Can Simplify
bool canSimplify(const Tree&, const SimplificationOptions&);
// MARK: Copy & Simplify
Tree copyAndSimplify(const Tree&, const SimplificationOptions&);
Child copyAndSimplify(const Child&, const SimplificationOptions&);
// MARK: In-place Simplify
std::optional<Child> simplify(Number&, const SimplificationOptions&);
std::optional<Child> simplify(Percentage&, const SimplificationOptions&);
std::optional<Child> simplify(NonCanonicalDimension&, const SimplificationOptions&);
std::optional<Child> simplify(CanonicalDimension&, const SimplificationOptions&);
std::optional<Child> simplify(Symbol&, const SimplificationOptions&);
std::optional<Child> simplify(Sum&, const SimplificationOptions&);
std::optional<Child> simplify(Product&, const SimplificationOptions&);
std::optional<Child> simplify(Negate&, const SimplificationOptions&);
std::optional<Child> simplify(Invert&, const SimplificationOptions&);
std::optional<Child> simplify(Min&, const SimplificationOptions&);
std::optional<Child> simplify(Max&, const SimplificationOptions&);
std::optional<Child> simplify(Clamp&, const SimplificationOptions&);
std::optional<Child> simplify(RoundNearest&, const SimplificationOptions&);
std::optional<Child> simplify(RoundUp&, const SimplificationOptions&);
std::optional<Child> simplify(RoundDown&, const SimplificationOptions&);
std::optional<Child> simplify(RoundToZero&, const SimplificationOptions&);
std::optional<Child> simplify(Mod&, const SimplificationOptions&);
std::optional<Child> simplify(Rem&, const SimplificationOptions&);
std::optional<Child> simplify(Sin&, const SimplificationOptions&);
std::optional<Child> simplify(Cos&, const SimplificationOptions&);
std::optional<Child> simplify(Tan&, const SimplificationOptions&);
std::optional<Child> simplify(Asin&, const SimplificationOptions&);
std::optional<Child> simplify(Acos&, const SimplificationOptions&);
std::optional<Child> simplify(Atan&, const SimplificationOptions&);
std::optional<Child> simplify(Atan2&, const SimplificationOptions&);
std::optional<Child> simplify(Pow&, const SimplificationOptions&);
std::optional<Child> simplify(Sqrt&, const SimplificationOptions&);
std::optional<Child> simplify(Hypot&, const SimplificationOptions&);
std::optional<Child> simplify(Log&, const SimplificationOptions&);
std::optional<Child> simplify(Exp&, const SimplificationOptions&);
std::optional<Child> simplify(Abs&, const SimplificationOptions&);
std::optional<Child> simplify(Sign&, const SimplificationOptions&);
std::optional<Child> simplify(Random&, const SimplificationOptions&);
std::optional<Child> simplify(Progress&, const SimplificationOptions&);
std::optional<Child> simplify(MediaProgress&, const SimplificationOptions&);
std::optional<Child> simplify(ContainerProgress&, const SimplificationOptions&);
std::optional<Child> simplify(Anchor&, const SimplificationOptions&);
std::optional<Child> simplify(AnchorSize&, const SimplificationOptions&);
// MARK: Unit Canonicalization
std::optional<CanonicalDimension> canonicalize(NonCanonicalDimension, const std::optional<CSSToLengthConversionData>&);
} // namespace CSSCalc
} // namespace WebCore
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