120 lines
4.1 KiB
C++
120 lines
4.1 KiB
C++
/*
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* Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
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* Copyright (C) 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 THE COPYRIGHT HOLDER "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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#include "CSSImageGeneratorValue.h"
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#include "CachedImageClient.h"
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#include "CachedResourceHandle.h"
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#include "FilterOperations.h"
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#include "Image.h"
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#include <wtf/Function.h>
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namespace WebCore {
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class FilterSubimageObserverProxy;
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class RenderElement;
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namespace Style {
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class BuilderState;
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}
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class CSSFilterImageValue final : public CSSImageGeneratorValue {
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friend class FilterSubimageObserverProxy;
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public:
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static Ref<CSSFilterImageValue> create(Ref<CSSValue>&& imageValue, Ref<CSSValue>&& filterValue)
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{
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return adoptRef(*new CSSFilterImageValue(WTFMove(imageValue), WTFMove(filterValue)));
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}
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~CSSFilterImageValue();
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String customCSSText() const;
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RefPtr<Image> image(RenderElement&, const FloatSize&);
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bool isFixedSize() const { return true; }
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FloatSize fixedSize(const RenderElement&);
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bool isPending() const;
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bool knownToBeOpaque(const RenderElement&) const;
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void loadSubimages(CachedResourceLoader&, const ResourceLoaderOptions&);
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bool traverseSubresources(const WTF::Function<bool (const CachedResource&)>& handler) const;
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bool equals(const CSSFilterImageValue&) const;
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bool equalInputImages(const CSSFilterImageValue&) const;
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const FilterOperations& filterOperations() const { return m_filterOperations; }
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void setFilterOperations(const FilterOperations& filterOperations) { m_filterOperations = filterOperations; }
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CachedImage* cachedImage() const { return m_cachedImage.get(); }
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Ref<CSSFilterImageValue> valueWithStylesResolved(Style::BuilderState&);
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private:
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CSSFilterImageValue(Ref<CSSValue>&& imageValue, Ref<CSSValue>&& filterValue)
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: CSSImageGeneratorValue(FilterImageClass)
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, m_imageValue(WTFMove(imageValue))
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, m_filterValue(WTFMove(filterValue))
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, m_filterSubimageObserver(this)
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{
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}
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class FilterSubimageObserverProxy final : public CachedImageClient {
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public:
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FilterSubimageObserverProxy(CSSFilterImageValue* ownerValue)
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: m_ownerValue(ownerValue)
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, m_ready(false)
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{
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}
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virtual ~FilterSubimageObserverProxy() = default;
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void imageChanged(CachedImage*, const IntRect* = nullptr) final;
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void setReady(bool ready) { m_ready = ready; }
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private:
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CSSFilterImageValue* m_ownerValue;
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bool m_ready;
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};
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void filterImageChanged(const IntRect&);
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void createFilterOperations(Style::BuilderState&);
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Ref<CSSValue> m_imageValue;
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Ref<CSSValue> m_filterValue;
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FilterOperations m_filterOperations;
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CachedResourceHandle<CachedImage> m_cachedImage;
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FilterSubimageObserverProxy m_filterSubimageObserver;
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSFilterImageValue, isFilterImageValue())
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