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// Copyright 2014 The Chromium Authors. All rights reserved.
// Copyright (C) 2016 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:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR 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.
#pragma once
#include "CSSParserTokenRange.h"
#include "CSSPrimitiveValue.h"
#include "MediaQuery.h"
#include <wtf/WeakRef.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CSSValue;
class Document;
struct CSSParserContext;
namespace CSS {
enum class LengthUnit : uint8_t;
}
class SizesAttributeParser {
public:
SizesAttributeParser(const String&, const Document&);
float length();
static float defaultLength(const Document&);
static float computeLength(double value, CSS::LengthUnit, const Document&);
auto& dynamicMediaQueryResults() const { return m_dynamicMediaQueryResults; }
private:
bool parse(CSSParserTokenRange, const CSSParserContext&);
float effectiveSize();
std::optional<float> calculateLengthInPixels(CSSParserTokenRange);
bool mediaConditionMatches(const MQ::MediaQuery&);
unsigned effectiveSizeDefaultValue();
Ref<const Document> protectedDocument() const;
WeakRef<const Document, WeakPtrImplWithEventTargetData> m_document;
Vector<MQ::MediaQueryResult> m_dynamicMediaQueryResults;
float m_length { 0 };
bool m_lengthWasSet { false };
bool m_isValid { false };
};
} // namespace WebCore
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