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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.
*/
#include "config.h"
#include "CSSPropertyParserConsumer+Sizing.h"
#include "CSSParserContext.h"
#include "CSSParserTokenRange.h"
#include "CSSPrimitiveValue.h"
#include "CSSPropertyParserConsumer+Ident.h"
#include "CSSPropertyParserConsumer+Length.h"
#include "CSSPropertyParserConsumer+Number.h"
#include "CSSPropertyParserConsumer+Primitives.h"
#include "CSSValueKeywords.h"
#include "CSSValueList.h"
#include "CSSValuePair.h"
namespace WebCore {
namespace CSSPropertyParserHelpers {
static RefPtr<CSSValueList> consumeAspectRatioValue(CSSParserTokenRange& range, const CSSParserContext& context)
{
auto leftValue = consumeNumber(range, context, ValueRange::NonNegative);
if (!leftValue)
return nullptr;
auto rightValue = consumeSlashIncludingWhitespace(range)
? consumeNumber(range, context, ValueRange::NonNegative)
: CSSPrimitiveValue::create(1);
if (!rightValue)
return nullptr;
return CSSValueList::createSlashSeparated(leftValue.releaseNonNull(), rightValue.releaseNonNull());
}
RefPtr<CSSValue> consumeAspectRatio(CSSParserTokenRange& range, const CSSParserContext& context)
{
// <'aspect-ratio'> = auto || <ratio>
// https://drafts.csswg.org/css-sizing-4/#aspect-ratio
RefPtr<CSSPrimitiveValue> autoValue;
if (range.peek().type() == IdentToken)
autoValue = consumeIdent<CSSValueAuto>(range);
if (range.atEnd())
return autoValue;
auto ratioList = consumeAspectRatioValue(range, context);
if (!ratioList)
return nullptr;
if (!autoValue) {
autoValue = consumeIdent<CSSValueAuto>(range);
if (!autoValue)
return ratioList;
}
return CSSValueList::createSpaceSeparated(autoValue.releaseNonNull(), ratioList.releaseNonNull());
}
RefPtr<CSSValue> consumeContainIntrinsicSize(CSSParserTokenRange& range, const CSSParserContext& context)
{
// <contain-intrinsic-size> = auto? [ none | <length> ]
// https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override
RefPtr<CSSPrimitiveValue> autoValue;
if ((autoValue = consumeIdent<CSSValueAuto>(range))) {
if (range.atEnd())
return nullptr;
}
if (auto noneValue = consumeIdent<CSSValueNone>(range)) {
if (autoValue)
return CSSValuePair::create(autoValue.releaseNonNull(), noneValue.releaseNonNull());
return noneValue;
}
if (auto lengthValue = consumeLength(range, context, HTMLStandardMode, ValueRange::NonNegative)) {
if (autoValue)
return CSSValuePair::create(autoValue.releaseNonNull(), lengthValue.releaseNonNull());
return lengthValue;
}
return nullptr;
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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