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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+Box.h"
#include "CSSCalcSymbolTable.h"
#include "CSSParserContext.h"
#include "CSSParserTokenRange.h"
#include "CSSPrimitiveValue.h"
#include "CSSPropertyParserConsumer+CSSPrimitiveValueResolver.h"
#include "CSSPropertyParserConsumer+Ident.h"
#include "CSSPropertyParserConsumer+LengthPercentageDefinitions.h"
#include "CSSValueKeywords.h"
#include "CSSValueList.h"
namespace WebCore {
namespace CSSPropertyParserHelpers {
RefPtr<CSSValue> consumeMarginTrim(CSSParserTokenRange& range, CSS::PropertyParserState&)
{
// <'margin-trim'> = none | [ block || inline ] | [ block-start || inline-start || block-end || inline-end ]
// https://drafts.csswg.org/css-box/#margin-trim
auto firstValue = range.peek().id();
if (firstValue == CSSValueNone)
return consumeIdent(range).releaseNonNull();
// FIXME: Multiple values should be appended in canonical order.
Vector<CSSValueID, 4> idents;
if (firstValue == CSSValueBlock || firstValue == CSSValueInline) {
while (auto ident = consumeIdentRaw<CSSValueBlock, CSSValueInline>(range)) {
if (idents.contains(*ident))
return nullptr;
idents.append(*ident);
}
} else {
while (auto ident = consumeIdentRaw<CSSValueBlockStart, CSSValueBlockEnd, CSSValueInlineStart, CSSValueInlineEnd>(range)) {
if (idents.contains(*ident))
return nullptr;
idents.append(*ident);
}
// Try to serialize into either block or inline form
if (idents.size() == 2) {
if (idents.contains(CSSValueBlockStart) && idents.contains(CSSValueBlockEnd))
return CSSPrimitiveValue::create(CSSValueBlock);
if (idents.contains(CSSValueInlineStart) && idents.contains(CSSValueInlineEnd))
return CSSPrimitiveValue::create(CSSValueInline);
} else if (idents.size() == 4) {
CSSValueListBuilder list;
list.append(CSSPrimitiveValue::create(CSSValueBlock));
list.append(CSSPrimitiveValue::create(CSSValueInline));
return CSSValueList::createSpaceSeparated(WTFMove(list));
}
}
CSSValueListBuilder list;
for (auto ident : idents)
list.append(CSSPrimitiveValue::create(ident));
return CSSValueList::createSpaceSeparated(WTFMove(list));
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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