/*

* Copyright (C) 2011-2025 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,

* 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 "CSSPrimitiveValue.h"

#include "CSSValue.h"

#include <wtf/Function.h>

namespace WebCore {

namespace Style {

class BuilderState;

class Image;

}

class CSSCrossfadeValue final : public CSSValue {

public:

static Ref<CSSCrossfadeValue> NODELETE create(Ref<CSSValue>&& fromValueOrNone, Ref<CSSValue>&& toValueOrNone, Ref<CSSPrimitiveValue>&& percentageValue, bool isPrefixed = false);

~CSSCrossfadeValue();

bool equals(const CSSCrossfadeValue&) const;

bool equalInputImages(const CSSCrossfadeValue&) const;

String customCSSText(const CSS::SerializationContext&) const;

bool isPrefixed() const { return m_isPrefixed; }

RefPtr<Style::Image> createStyleImage(const Style::BuilderState&) const;

IterationStatus customVisitChildren(NOESCAPE const Function<IterationStatus(CSSValue&)>& func) const

{

if (func(m_fromValueOrNone.get()) == IterationStatus::Done)

return IterationStatus::Done;

if (func(m_toValueOrNone.get()) == IterationStatus::Done)

return IterationStatus::Done;

if (func(m_percentageValue.get()) == IterationStatus::Done)

return IterationStatus::Done;

return IterationStatus::Continue;

}

private:

CSSCrossfadeValue(Ref<CSSValue>&& fromValueOrNone, Ref<CSSValue>&& toValueOrNone, Ref<CSSPrimitiveValue>&& percentageValue, bool isPrefixed);

const Ref<CSSValue> m_fromValueOrNone;

const Ref<CSSValue> m_toValueOrNone;

const Ref<CSSPrimitiveValue> m_percentageValue;

bool m_isPrefixed;

};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSCrossfadeValue, isCrossfadeValue())