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/*
* Copyright (C) 2021 Tyler Wilcock <twilco.o@protonmail.com>.
*
* 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,
* 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 "CSSValue.h"
#include <wtf/Function.h>
namespace WebCore {
class CSSValuePair final : public CSSValue {
public:
static Ref<CSSValuePair> create(Ref<CSSValue>, Ref<CSSValue>);
static Ref<CSSValuePair> createSlashSeparated(Ref<CSSValue>, Ref<CSSValue>);
static Ref<CSSValuePair> createNoncoalescing(Ref<CSSValue>, Ref<CSSValue>);
const CSSValue& first() const { return m_first; }
const CSSValue& second() const { return m_second; }
Ref<CSSValue> protectedFirst() const { return m_first; }
Ref<CSSValue> protectedSecond() const { return m_second; }
String customCSSText(const CSS::SerializationContext&) const;
bool equals(const CSSValuePair&) const;
bool canBeCoalesced() const;
IterationStatus customVisitChildren(NOESCAPE const Function<IterationStatus(CSSValue&)>& func) const
{
if (func(m_first.get()) == IterationStatus::Done)
return IterationStatus::Done;
if (func(m_second.get()) == IterationStatus::Done)
return IterationStatus::Done;
return IterationStatus::Continue;
}
private:
friend bool CSSValue::addHash(Hasher&) const;
enum class IdenticalValueSerialization : bool { DoNotCoalesce, Coalesce };
CSSValuePair(ValueSeparator, Ref<CSSValue>, Ref<CSSValue>, IdenticalValueSerialization);
bool addDerivedHash(Hasher&) const;
// FIXME: Store coalesce bit in CSSValue to cut down on object size.
bool m_coalesceIdenticalValues { true };
Ref<CSSValue> m_first;
Ref<CSSValue> m_second;
};
inline const CSSValue& CSSValue::first() const
{
return downcast<CSSValuePair>(*this).first();
}
inline Ref<CSSValue> CSSValue::protectedFirst() const
{
return downcast<CSSValuePair>(*this).protectedFirst();
}
inline const CSSValue& CSSValue::second() const
{
return downcast<CSSValuePair>(*this).second();
}
inline Ref<CSSValue> CSSValue::protectedSecond() const
{
return downcast<CSSValuePair>(*this).protectedSecond();
}
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSValuePair, isPair())
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