76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/*
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* Copyright (C) 2016 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 <wtf/Forward.h>
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namespace WebCore {
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class Element;
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class RenderStyle;
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namespace Style {
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class Update;
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struct Relation {
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enum Type {
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AffectedByEmpty,
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AffectedByPreviousSibling,
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DescendantsAffectedByPreviousSibling,
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// For AffectsNextSibling 'value' tells how many element siblings to mark starting with 'element'.
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AffectsNextSibling,
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ChildrenAffectedByForwardPositionalRules,
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DescendantsAffectedByForwardPositionalRules,
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ChildrenAffectedByBackwardPositionalRules,
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DescendantsAffectedByBackwardPositionalRules,
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ChildrenAffectedByFirstChildRules,
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ChildrenAffectedByPropertyBasedBackwardPositionalRules,
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ChildrenAffectedByLastChildRules,
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FirstChild,
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LastChild,
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NthChildIndex,
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Unique,
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};
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const Element* element;
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Type type;
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unsigned value;
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Relation(const Element& element, Type type, unsigned value = 1)
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: element(&element)
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, type(type)
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, value(value)
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{ }
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};
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using Relations = Vector<Relation, 8>;
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std::unique_ptr<Relations> commitRelationsToRenderStyle(RenderStyle&, const Element&, const Relations&);
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void commitRelations(std::unique_ptr<Relations>, Update&);
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}
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}
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