174 lines
5.6 KiB
C++
174 lines
5.6 KiB
C++
/*
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* Copyright (C) 2012, 2013 Adobe Systems Incorporated. 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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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* 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 "BasicShapes.h"
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#include "Path.h"
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#include "RenderStyleConstants.h"
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#include <wtf/RefCounted.h>
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#include <wtf/TypeCasts.h>
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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class ClipPathOperation : public RefCounted<ClipPathOperation> {
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public:
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enum OperationType {
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Reference,
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Shape,
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Box
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};
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virtual ~ClipPathOperation() = default;
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virtual bool operator==(const ClipPathOperation&) const = 0;
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bool operator!=(const ClipPathOperation& o) const { return !(*this == o); }
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OperationType type() const { return m_type; }
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bool isSameType(const ClipPathOperation& o) const { return o.type() == m_type; }
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protected:
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explicit ClipPathOperation(OperationType type)
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: m_type(type)
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{
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}
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OperationType m_type;
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};
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class ReferenceClipPathOperation final : public ClipPathOperation {
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public:
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static Ref<ReferenceClipPathOperation> create(const String& url, const String& fragment)
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{
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return adoptRef(*new ReferenceClipPathOperation(url, fragment));
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}
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const String& url() const { return m_url; }
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const String& fragment() const { return m_fragment; }
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private:
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bool operator==(const ClipPathOperation& other) const override
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{
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if (!isSameType(other))
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return false;
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auto& referenceClip = downcast<ReferenceClipPathOperation>(other);
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return m_url == referenceClip.m_url;
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}
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ReferenceClipPathOperation(const String& url, const String& fragment)
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: ClipPathOperation(Reference)
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, m_url(url)
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, m_fragment(fragment)
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{
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}
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String m_url;
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String m_fragment;
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};
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class ShapeClipPathOperation final : public ClipPathOperation {
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public:
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static Ref<ShapeClipPathOperation> create(Ref<BasicShape>&& shape)
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{
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return adoptRef(*new ShapeClipPathOperation(WTFMove(shape)));
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}
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const BasicShape& basicShape() const { return m_shape; }
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WindRule windRule() const { return m_shape.get().windRule(); }
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const Path& pathForReferenceRect(const FloatRect& boundingRect) { return m_shape.get().path(boundingRect); }
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void setReferenceBox(CSSBoxType referenceBox) { m_referenceBox = referenceBox; }
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CSSBoxType referenceBox() const { return m_referenceBox; }
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private:
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bool operator==(const ClipPathOperation& other) const override
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{
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if (!isSameType(other))
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return false;
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auto& shapeClip = downcast<ShapeClipPathOperation>(other);
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return m_referenceBox == shapeClip.referenceBox()
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&& (m_shape.ptr() == shapeClip.m_shape.ptr() || m_shape.get() == shapeClip.m_shape.get());
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}
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explicit ShapeClipPathOperation(Ref<BasicShape>&& shape)
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: ClipPathOperation(Shape)
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, m_shape(WTFMove(shape))
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, m_referenceBox(CSSBoxType::BoxMissing)
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{
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}
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Ref<BasicShape> m_shape;
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CSSBoxType m_referenceBox;
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};
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class BoxClipPathOperation final : public ClipPathOperation {
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public:
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static Ref<BoxClipPathOperation> create(CSSBoxType referenceBox)
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{
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return adoptRef(*new BoxClipPathOperation(referenceBox));
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}
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const Path pathForReferenceRect(const FloatRoundedRect& boundingRect) const
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{
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Path path;
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path.addRoundedRect(boundingRect);
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return path;
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}
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CSSBoxType referenceBox() const { return m_referenceBox; }
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private:
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bool operator==(const ClipPathOperation& other) const override
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{
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if (!isSameType(other))
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return false;
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auto& boxClip = downcast<BoxClipPathOperation>(other);
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return m_referenceBox == boxClip.m_referenceBox;
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}
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explicit BoxClipPathOperation(CSSBoxType referenceBox)
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: ClipPathOperation(Box)
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, m_referenceBox(referenceBox)
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{
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}
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CSSBoxType m_referenceBox;
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};
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} // namespace WebCore
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#define SPECIALIZE_TYPE_TRAITS_CLIP_PATH_OPERATION(ToValueTypeName, predicate) \
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SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToValueTypeName) \
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static bool isType(const WebCore::ClipPathOperation& operation) { return operation.type() == WebCore::predicate; } \
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SPECIALIZE_TYPE_TRAITS_END()
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SPECIALIZE_TYPE_TRAITS_CLIP_PATH_OPERATION(ReferenceClipPathOperation, ClipPathOperation::Reference)
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SPECIALIZE_TYPE_TRAITS_CLIP_PATH_OPERATION(ShapeClipPathOperation, ClipPathOperation::Shape)
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SPECIALIZE_TYPE_TRAITS_CLIP_PATH_OPERATION(BoxClipPathOperation, ClipPathOperation::Box)
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