84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/*
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* Copyright (C) 2012-2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "CSSValueList.h"
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#include "CachedResourceHandle.h"
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#include "ResourceLoaderOptions.h"
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#include <wtf/Function.h>
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#include <wtf/RefPtr.h>
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namespace WebCore {
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class CachedImage;
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class CachedResourceLoader;
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class CSSImageValue;
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class Document;
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namespace Style {
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class BuilderState;
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}
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struct ImageWithScale {
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RefPtr<CSSValue> value;
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float scaleFactor { 1 };
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};
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class CSSImageSetValue final : public CSSValueList {
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public:
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static Ref<CSSImageSetValue> create();
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~CSSImageSetValue();
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ImageWithScale selectBestFitImage(const Document&);
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CachedImage* cachedImage() const;
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String customCSSText() const;
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bool traverseSubresources(const WTF::Function<bool (const CachedResource&)>& handler) const;
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void updateDeviceScaleFactor(const Document&);
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Ref<CSSImageSetValue> valueWithStylesResolved(Style::BuilderState&);
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private:
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CSSImageSetValue();
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ImageWithScale bestImageForScaleFactor();
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void fillImageSet();
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static inline bool compareByScaleFactor(ImageWithScale first, ImageWithScale second) { return first.scaleFactor < second.scaleFactor; }
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RefPtr<CSSValue> m_selectedImageValue;
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bool m_accessedBestFitImage { false };
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ImageWithScale m_bestFitImage;
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float m_deviceScaleFactor { 1 };
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Vector<ImageWithScale> m_imagesInSet;
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSImageSetValue, isImageSetValue())
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