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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.
*/
#include "config.h"
#include "CSSPropertyParserConsumer+Percent.h"
#include "CSSPropertyParserConsumer+PercentDefinitions.h"
#include "CSSCalcParser.h"
#include "CSSCalcSymbolTable.h"
#include "CSSCalcSymbolsAllowed.h"
#include "CSSCalcValue.h"
#include "CSSPropertyParserConsumer+CSSPrimitiveValueResolver.h"
#include "CSSPropertyParserConsumer+MetaConsumer.h"
#include "CSSPropertyParserConsumer+NumberDefinitions.h"
#include "CSSPropertyParserConsumer+RawResolver.h"
namespace WebCore {
namespace CSSPropertyParserHelpers {
std::optional<PercentRaw> validatedRange(PercentRaw value, CSSPropertyParserOptions options)
{
if (options.valueRange == ValueRange::NonNegative && value.value < 0)
return std::nullopt;
if (std::isinf(value.value))
return std::nullopt;
return value;
}
std::optional<UnevaluatedCalc<PercentRaw>> PercentKnownTokenTypeFunctionConsumer::consume(CSSParserTokenRange& range, CSSCalcSymbolsAllowed symbolsAllowed, CSSPropertyParserOptions options)
{
ASSERT(range.peek().type() == FunctionToken);
auto rangeCopy = range;
if (RefPtr value = consumeCalcRawWithKnownTokenTypeFunction(rangeCopy, CalculationCategory::Percent, WTFMove(symbolsAllowed), options)) {
range = rangeCopy;
return {{ value.releaseNonNull() }};
}
return std::nullopt;
}
std::optional<PercentRaw> PercentKnownTokenTypePercentConsumer::consume(CSSParserTokenRange& range, CSSCalcSymbolsAllowed, CSSPropertyParserOptions options)
{
ASSERT(range.peek().type() == PercentageToken);
if (auto validatedValue = validatedRange(PercentRaw { range.peek().numericValue() }, options)) {
range.consumeIncludingWhitespace();
return validatedValue;
}
return std::nullopt;
}
// MARK: - Consumer functions
std::optional<PercentRaw> consumePercentRaw(CSSParserTokenRange& range, ValueRange valueRange)
{
const auto options = CSSPropertyParserOptions {
.valueRange = valueRange
};
return RawResolver<PercentRaw>::consumeAndResolve(range, { }, { }, options);
}
RefPtr<CSSPrimitiveValue> consumePercent(CSSParserTokenRange& range, ValueRange valueRange)
{
const auto options = CSSPropertyParserOptions {
.valueRange = valueRange
};
return CSSPrimitiveValueResolver<PercentRaw>::consumeAndResolve(range, { }, { }, options);
}
RefPtr<CSSPrimitiveValue> consumePercentOrNumber(CSSParserTokenRange& range, ValueRange valueRange)
{
const auto options = CSSPropertyParserOptions {
.valueRange = valueRange
};
return CSSPrimitiveValueResolver<PercentRaw, NumberRaw>::consumeAndResolve(range, { }, { }, options);
}
RefPtr<CSSPrimitiveValue> consumePercentDividedBy100OrNumber(CSSParserTokenRange& range, ValueRange valueRange)
{
auto& token = range.peek();
const auto options = CSSPropertyParserOptions {
.valueRange = valueRange
};
switch (token.type()) {
case FunctionToken:
if (auto value = NumberKnownTokenTypeFunctionConsumer::consume(range, { }, options))
return CSSPrimitiveValueResolver<NumberRaw>::resolve(*value, { }, options);
if (auto value = PercentKnownTokenTypeFunctionConsumer::consume(range, { }, options))
return CSSPrimitiveValueResolver<PercentRaw>::resolve(*value, { }, options);
break;
case NumberToken:
if (auto value = NumberKnownTokenTypeNumberConsumer::consume(range, { }, options))
return CSSPrimitiveValueResolver<NumberRaw>::resolve(*value, { }, options);
break;
case PercentageToken:
if (auto value = PercentKnownTokenTypePercentConsumer::consume(range, { }, options))
return CSSPrimitiveValue::create(value->value / 100.0);
break;
default:
break;
}
return nullptr;
}
std::optional<PercentOrNumberRaw> consumePercentOrNumberRaw(CSSParserTokenRange& range, ValueRange valueRange)
{
const auto options = CSSPropertyParserOptions {
.valueRange = valueRange
};
return RawResolver<PercentRaw, NumberRaw>::consumeAndResolve(range, { }, { }, options);
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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