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/*
* Copyright (C) 2022 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 "ContainerQueryParser.h"
#include "CSSPrimitiveValue.h"
#include "CSSPropertyParserHelpers.h"
#include "ContainerQueryFeatures.h"
namespace WebCore {
namespace CQ {
std::optional<ContainerQuery> ContainerQueryParser::consumeContainerQuery(CSSParserTokenRange& range, const MediaQueryParserContext& context)
{
auto consumeName = [&] {
if (range.peek().type() == LeftParenthesisToken || range.peek().type() == FunctionToken)
return nullAtom();
auto nameValue = CSSPropertyParserHelpers::consumeSingleContainerName(range);
if (!nameValue)
return nullAtom();
return AtomString { nameValue->stringValue() };
};
auto name = consumeName();
auto condition = consumeCondition(range, context);
if (!condition)
return { };
OptionSet<Axis> requiredAxes;
auto containsUnknownFeature = ContainsUnknownFeature::No;
traverseFeatures(*condition, [&](auto& feature) {
requiredAxes.add(requiredAxesForFeature(feature));
if (!feature.schema)
containsUnknownFeature = ContainsUnknownFeature::Yes;
});
return ContainerQuery { name, *condition, requiredAxes, containsUnknownFeature };
}
Vector<const MQ::FeatureSchema*> ContainerQueryParser::featureSchemas()
{
return {
&Features::width(),
&Features::height(),
&Features::inlineSize(),
&Features::blockSize(),
&Features::aspectRatio(),
&Features::orientation(),
};
}
}
}
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