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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 "CSSPropertyParser.h"
#include "CSSPropertyParserConsumer+Conditional.h"
#include "ContainerQueryFeatures.h"
#include "MediaQueryParserContext.h"
namespace WebCore {
namespace CQ {
Vector<const MQ::FeatureSchema*> ContainerQueryParser::featureSchemas()
{
return Features::allSchemas();
}
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, context.context);
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 };
}
bool ContainerQueryParser::isValidFunctionId(CSSValueID functionId)
{
return functionId == CSSValueStyle;
}
const MQ::FeatureSchema* ContainerQueryParser::schemaForFeatureName(const AtomString& name, const MediaQueryParserContext& context, State& state)
{
if (state.inFunctionId == CSSValueStyle && context.context.cssStyleQueriesEnabled)
return &Features::style();
return GenericMediaQueryParser<ContainerQueryParser>::schemaForFeatureName(name, context, state);
}
const ContainerProgressProviding* ContainerQueryParser::containerProgressProvidingSchemaForFeatureName(const AtomString& name, const MediaQueryParserContext&)
{
using Map = MemoryCompactLookupOnlyRobinHoodHashMap<AtomString, const ContainerProgressProviding*>;
static NeverDestroyed<Map> schemas = [&] {
Map map;
for (auto& entry : Features::allContainerProgressProvidingSchemas())
map.add(entry->name(), entry);
return map;
}();
return schemas->get(name);
}
}
}
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