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/*
* Copyright (C) 2024 Apple Inc. All rights reserved.
*
* 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 "CSSPrimitiveValue.h"
#include "CSSPropertyParserConsumer+MetaConsumer.h"
#include "CSSPropertyParserConsumer+MetaResolver.h"
#include "CSSPropertyParserConsumer+Primitives.h"
#include "CSSPropertyParserConsumer+UnevaluatedCalc.h"
#include <wtf/RefPtr.h>
namespace WebCore {
namespace CSSPropertyParserHelpers {
// MARK: Resolver for users that want to get a CSSPrimitiveValue result.
/// Non-template base type for code sharing.
struct CSSPrimitiveValueResolverBase {
static RefPtr<CSSPrimitiveValue> resolve(AngleRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(LengthRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(NumberRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(PercentRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(ResolutionRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(TimeRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(NoneRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
static RefPtr<CSSPrimitiveValue> resolve(SymbolRaw, const CSSCalcSymbolTable&, CSSPropertyParserOptions);
template<typename IntType, IntegerValueRange integerRange>
static RefPtr<CSSPrimitiveValue> resolve(IntegerRaw<IntType, integerRange> value, const CSSCalcSymbolTable&, CSSPropertyParserOptions)
{
return CSSPrimitiveValue::createInteger(value.value);
}
template<typename RawType>
static RefPtr<CSSPrimitiveValue> resolve(UnevaluatedCalc<RawType> value, const CSSCalcSymbolTable&, CSSPropertyParserOptions)
{
return CSSPrimitiveValue::create(value.calc);
}
template<typename IntType, IntegerValueRange integerRange>
static RefPtr<CSSPrimitiveValue> resolve(UnevaluatedCalc<IntegerRaw<IntType, integerRange>> calc, const CSSCalcSymbolTable& symbolTable, CSSPropertyParserOptions)
{
// FIXME: This should not be eagerly resolving the calc. Instead, callers
// should resolve and round at style resolution.
// https://drafts.csswg.org/css-values-4/#integers
// Rounding to the nearest integer requires rounding in the direction of +∞ when the fractional portion is exactly 0.5.
auto value = clampTo<IntType>(std::floor(std::max(calc.calc->doubleValue(symbolTable), computeMinimumValue(integerRange)) + 0.5));
return CSSPrimitiveValue::createInteger(value);
}
};
template<typename... Ts>
struct CSSPrimitiveValueResolver : MetaResolver<RefPtr<CSSPrimitiveValue>, CSSPrimitiveValueResolverBase, Ts...> {
using MetaResolver<RefPtr<CSSPrimitiveValue>, CSSPrimitiveValueResolverBase, Ts...>::resolve;
using MetaResolver<RefPtr<CSSPrimitiveValue>, CSSPrimitiveValueResolverBase, Ts...>::consumeAndResolve;
};
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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