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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+Time.h"
#include "CSSPropertyParserConsumer+TimeDefinitions.h"
#include "CSSCalcParser.h"
#include "CSSCalcSymbolTable.h"
#include "CSSCalcSymbolsAllowed.h"
#include "CSSPropertyParserConsumer+CSSPrimitiveValueResolver.h"
#include "CSSPropertyParserConsumer+MetaConsumer.h"
#include "Length.h"
namespace WebCore {
namespace CSSPropertyParserHelpers {
std::optional<TimeRaw> validatedRange(TimeRaw value, CSSPropertyParserOptions options)
{
if (options.valueRange == ValueRange::NonNegative && value.value < 0)
return std::nullopt;
return value;
}
std::optional<UnevaluatedCalc<TimeRaw>> TimeKnownTokenTypeFunctionConsumer::consume(CSSParserTokenRange& range, CSSCalcSymbolsAllowed symbolsAllowed, CSSPropertyParserOptions options)
{
ASSERT(range.peek().type() == FunctionToken);
auto rangeCopy = range;
if (RefPtr value = consumeCalcRawWithKnownTokenTypeFunction(rangeCopy, CalculationCategory::Time, WTFMove(symbolsAllowed), options)) {
range = rangeCopy;
return {{ value.releaseNonNull() }};
}
return std::nullopt;
}
std::optional<TimeRaw> TimeKnownTokenTypeDimensionConsumer::consume(CSSParserTokenRange& range, CSSCalcSymbolsAllowed, CSSPropertyParserOptions options)
{
ASSERT(range.peek().type() == DimensionToken);
auto& token = range.peek();
auto unitType = token.unitType();
switch (unitType) {
case CSSUnitType::CSS_MS:
case CSSUnitType::CSS_S:
break;
default:
return std::nullopt;
}
if (auto validatedValue = validatedRange(TimeRaw { unitType, token.numericValue() }, options)) {
range.consumeIncludingWhitespace();
return validatedValue;
}
return std::nullopt;
}
std::optional<TimeRaw> TimeKnownTokenTypeNumberConsumer::consume(CSSParserTokenRange& range, CSSCalcSymbolsAllowed, CSSPropertyParserOptions options)
{
ASSERT(range.peek().type() == NumberToken);
// FIXME: This check for the unitless quirk outside of shouldAcceptUnitlessValue differs
// from other callers like the length consumer, and disallows a parser mode to override
// whether the quirk is allowed or not.
if (options.unitless != UnitlessQuirk::Allow)
return std::nullopt;
auto numericValue = range.peek().numericValue();
if (!shouldAcceptUnitlessValue(numericValue, options))
return std::nullopt;
if (auto validatedValue = validatedRange(TimeRaw { CSSUnitType::CSS_MS, numericValue }, options)) {
range.consumeIncludingWhitespace();
return validatedValue;
}
return std::nullopt;
}
// MARK: - Consumer functions
RefPtr<CSSPrimitiveValue> consumeTime(CSSParserTokenRange& range, CSSParserMode parserMode, ValueRange valueRange, UnitlessQuirk unitless)
{
const auto options = CSSPropertyParserOptions {
.parserMode = parserMode,
.valueRange = valueRange,
.unitless = unitless
};
return CSSPrimitiveValueResolver<TimeRaw>::consumeAndResolve(range, { }, { }, options);
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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