| /* |
| * Copyright (C) 2013 Adobe Systems Incorporated. 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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 "CSSImageGeneratorValue.h" |
| #include "CachedImageClient.h" |
| #include "CachedResourceHandle.h" |
| #include "FilterOperations.h" |
| #include "Image.h" |
| #include <wtf/Function.h> |
| |
| namespace WebCore { |
| |
| class CachedImage; |
| class FilterSubimageObserverProxy; |
| class RenderElement; |
| class Document; |
| |
| namespace Style { |
| class BuilderState; |
| } |
| |
| class CSSFilterImageValue final : public CSSImageGeneratorValue { |
| friend class FilterSubimageObserverProxy; |
| public: |
| static Ref<CSSFilterImageValue> create(Ref<CSSValue>&& imageValue, Ref<CSSValue>&& filterValue) |
| { |
| return adoptRef(*new CSSFilterImageValue(WTFMove(imageValue), WTFMove(filterValue))); |
| } |
| |
| ~CSSFilterImageValue(); |
| |
| String customCSSText() const; |
| |
| RefPtr<Image> image(RenderElement&, const FloatSize&); |
| bool isFixedSize() const { return true; } |
| FloatSize fixedSize(const RenderElement&); |
| |
| bool isPending() const; |
| bool knownToBeOpaque(const RenderElement&) const; |
| |
| void loadSubimages(CachedResourceLoader&, const ResourceLoaderOptions&); |
| |
| bool traverseSubresources(const WTF::Function<bool (const CachedResource&)>& handler) const; |
| |
| bool equals(const CSSFilterImageValue&) const; |
| |
| bool equalInputImages(const CSSFilterImageValue&) const; |
| |
| void createFilterOperations(Style::BuilderState&); |
| |
| const FilterOperations& filterOperations() const { return m_filterOperations; } |
| void setFilterOperations(const FilterOperations& filterOperations) |
| { |
| m_filterOperations = filterOperations; |
| } |
| CachedImage* cachedImage() const { return m_cachedImage.get(); } |
| |
| private: |
| CSSFilterImageValue(Ref<CSSValue>&& imageValue, Ref<CSSValue>&& filterValue) |
| : CSSImageGeneratorValue(FilterImageClass) |
| , m_imageValue(WTFMove(imageValue)) |
| , m_filterValue(WTFMove(filterValue)) |
| , m_filterSubimageObserver(this) |
| { |
| } |
| |
| class FilterSubimageObserverProxy final : public CachedImageClient { |
| public: |
| FilterSubimageObserverProxy(CSSFilterImageValue* ownerValue) |
| : m_ownerValue(ownerValue) |
| , m_ready(false) |
| { |
| } |
| |
| virtual ~FilterSubimageObserverProxy() = default; |
| void imageChanged(CachedImage*, const IntRect* = nullptr) final; |
| void setReady(bool ready) { m_ready = ready; } |
| private: |
| CSSFilterImageValue* m_ownerValue; |
| bool m_ready; |
| }; |
| |
| void filterImageChanged(const IntRect&); |
| |
| Ref<CSSValue> m_imageValue; |
| Ref<CSSValue> m_filterValue; |
| |
| FilterOperations m_filterOperations; |
| |
| CachedResourceHandle<CachedImage> m_cachedImage; |
| |
| FilterSubimageObserverProxy m_filterSubimageObserver; |
| }; |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSFilterImageValue, isFilterImageValue()) |