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/*
* Copyright (C) 2012-2021 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. AND ITS 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 APPLE INC. OR ITS 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 "CSSValueList.h"
#include "CachedResourceHandle.h"
#include "ResourceLoaderOptions.h"
#include <wtf/Function.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class CachedImage;
class CachedResourceLoader;
class CSSImageValue;
class Document;
namespace Style {
class BuilderState;
}
struct ImageWithScale {
RefPtr<CSSValue> value;
float scaleFactor { 1 };
};
class CSSImageSetValue final : public CSSValueList {
public:
static Ref<CSSImageSetValue> create();
~CSSImageSetValue();
ImageWithScale selectBestFitImage(const Document&);
CachedImage* cachedImage() const;
String customCSSText() const;
bool traverseSubresources(const Function<bool(const CachedResource&)>& handler) const;
void updateDeviceScaleFactor(const Document&);
Ref<CSSImageSetValue> valueWithStylesResolved(Style::BuilderState&);
private:
CSSImageSetValue();
ImageWithScale bestImageForScaleFactor();
void fillImageSet();
static inline bool compareByScaleFactor(ImageWithScale first, ImageWithScale second) { return first.scaleFactor < second.scaleFactor; }
RefPtr<CSSValue> m_selectedImageValue;
bool m_accessedBestFitImage { false };
ImageWithScale m_bestFitImage;
float m_deviceScaleFactor { 1 };
Vector<ImageWithScale> m_imagesInSet;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSImageSetValue, isImageSetValue())
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