104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
/*
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* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
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* (C) 2000 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2003-2021 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "CSSValue.h"
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#include "FloatSize.h"
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#include "Image.h"
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#include <wtf/RefCounted.h>
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#include <wtf/RefPtr.h>
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#include <wtf/TypeCasts.h>
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namespace WebCore {
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class CachedImage;
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class CachedResourceLoader;
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class CSSValue;
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class RenderElement;
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class RenderObject;
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struct ResourceLoaderOptions;
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typedef const void* WrappedImagePtr;
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class StyleImage : public RefCounted<StyleImage> {
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public:
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virtual ~StyleImage() = default;
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virtual bool operator==(const StyleImage& other) const = 0;
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virtual Ref<CSSValue> cssValue() const = 0;
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virtual bool canRender(const RenderElement*, float /*multiplier*/) const { return true; }
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virtual bool isPending() const = 0;
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virtual void load(CachedResourceLoader&, const ResourceLoaderOptions&) = 0;
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virtual bool isLoaded() const { return true; }
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virtual bool errorOccurred() const { return false; }
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virtual FloatSize imageSize(const RenderElement*, float multiplier) const = 0;
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virtual void computeIntrinsicDimensions(const RenderElement*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) = 0;
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virtual bool imageHasRelativeWidth() const = 0;
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virtual bool imageHasRelativeHeight() const = 0;
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virtual bool usesImageContainerSize() const = 0;
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virtual void setContainerContextForRenderer(const RenderElement&, const FloatSize&, float) = 0;
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virtual void addClient(RenderElement&) = 0;
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virtual void removeClient(RenderElement&) = 0;
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virtual bool hasClient(RenderElement&) const = 0;
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virtual bool hasImage() const { return false; }
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virtual RefPtr<Image> image(RenderElement*, const FloatSize&) const = 0;
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virtual WrappedImagePtr data() const = 0;
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virtual float imageScaleFactor() const { return 1; }
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virtual bool knownToBeOpaque(const RenderElement&) const = 0;
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virtual CachedImage* cachedImage() const { return 0; }
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virtual StyleImage* selectedImage() { return this; }
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virtual const StyleImage* selectedImage() const { return this; }
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ALWAYS_INLINE bool isCachedImage() const { return m_isCachedImage; }
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ALWAYS_INLINE bool isGeneratedImage() const { return m_isGeneratedImage; }
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ALWAYS_INLINE bool isCursorImage() const { return m_isCursorImage; }
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ALWAYS_INLINE bool isImageSet() const { return m_isImageSet; }
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bool hasCachedImage() const { return m_isCachedImage || selectedImage()->isCachedImage(); }
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virtual bool usesDataProtocol() const { return false; }
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protected:
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StyleImage()
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: m_isCachedImage(false)
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, m_isGeneratedImage(false)
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, m_isImageSet(false)
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, m_isCursorImage(false)
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{
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}
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bool m_isCachedImage : 1;
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bool m_isGeneratedImage : 1;
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bool m_isImageSet : 1;
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bool m_isCursorImage : 1;
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};
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} // namespace WebCore
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#define SPECIALIZE_TYPE_TRAITS_STYLE_IMAGE(ToClassName, predicate) \
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SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToClassName) \
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static bool isType(const WebCore::StyleImage& image) { return image.predicate(); } \
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SPECIALIZE_TYPE_TRAITS_END()
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