Add support for new CSS ::slotted() pseudo element

third_party/WebKit/Source/core/css/CSSSelector.h

 /*
  * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
  *               1999 Waldo Bastian (bastian@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 99 matching lines @@
         FirstAttributeSelectorMatch = AttributeExact,
     };
 
     enum Relation {
         SubSelector, // No combinator
         Descendant, // "Space" combinator
         Child, // > combinator
         DirectAdjacent, // + combinator
         IndirectAdjacent, // ~ combinator
         ShadowPseudo, // Special case of shadow DOM pseudo elements / shadow pseudo element
-        ShadowDeep // /deep/ combinator
+        ShadowDeep, // /deep/ combinator
+        ShadowSlot // slotted to <slot> element
     };
 
     enum PseudoType {
         PseudoUnknown,
         PseudoEmpty,
         PseudoFirstChild,
         PseudoFirstOfType,
         PseudoLastChild,
         PseudoLastOfType,
         PseudoOnlyChild,
@@ skipping 63 matching lines @@
         PseudoWebKitCustomElement,
         PseudoCue,
         PseudoFutureCue,
         PseudoPastCue,
         PseudoUnresolved,
         PseudoContent,
         PseudoHost,
         PseudoHostContext,
         PseudoShadow,
         PseudoSpatialNavigationFocus,
-        PseudoListBox
+        PseudoListBox,
+        PseudoSlotted
     };
 
     enum AttributeMatchType {
         CaseSensitive,
         CaseInsensitive,
     };
 
     PseudoType pseudoType() const { return static_cast<PseudoType>(m_pseudoType); }
     void updatePseudoType(const AtomicString&, bool hasArguments);
 
@@ skipping 33 matching lines @@
 
     void setNth(int a, int b);
     bool matchNth(int count) const;
 
     bool isAdjacentSelector() const { return m_relation == DirectAdjacent || m_relation == IndirectAdjacent; }
     bool isShadowSelector() const { return m_relation == ShadowPseudo || m_relation == ShadowDeep; }
     bool isSiblingSelector() const;
     bool isAttributeSelector() const { return m_match >= FirstAttributeSelectorMatch; }
     bool isHostPseudoClass() const { return m_pseudoType == PseudoHost || m_pseudoType == PseudoHostContext; }
     bool isInsertionPointCrossing() const { return m_pseudoType == PseudoHostContext || m_pseudoType == PseudoContent; }
+    bool isSlottedPseudoElement() const { return m_pseudoType == PseudoSlotted; }
 
     Relation relation() const { return static_cast<Relation>(m_relation); }
     void setRelation(Relation relation)
     {
         m_relation = relation;
         ASSERT(static_cast<Relation>(m_relation) == relation); // using a bitfield.
     }
 
     Match match() const { return static_cast<Match>(m_match); }
     void setMatch(Match match)
@@ skipping 12 matching lines @@
 
     enum LinkMatchMask { MatchLink = 1, MatchVisited = 2, MatchAll = MatchLink | MatchVisited };
     unsigned computeLinkMatchType() const;
 
     bool isForPage() const { return m_isForPage; }
     void setForPage() { m_isForPage = true; }
 
     bool relationIsAffectedByPseudoContent() const { return m_relationIsAffectedByPseudoContent; }
     void setRelationIsAffectedByPseudoContent() { m_relationIsAffectedByPseudoContent = true; }
 
+    bool relationIsAffectedByPseudoSlotted() const { return m_relationIsAffectedByPseudoSlotted; }
+    void setRelationIsAffectedByPseudoSlotted() { m_relationIsAffectedByPseudoSlotted = true; }
+
 private:
     unsigned m_relation               : 3; // enum Relation
     unsigned m_match                  : 4; // enum Match
     unsigned m_pseudoType             : 8; // enum PseudoType
     unsigned m_isLastInSelectorList   : 1;
     unsigned m_isLastInTagHistory     : 1;
     unsigned m_hasRareData            : 1;
     unsigned m_isForPage              : 1;
     unsigned m_tagIsImplicit          : 1;
-    unsigned m_relationIsAffectedByPseudoContent  : 1;
+    unsigned m_relationIsAffectedByPseudoContent : 1;
+    unsigned m_relationIsAffectedByPseudoSlotted : 1;
 
     void setPseudoType(PseudoType pseudoType)
     {
         m_pseudoType = pseudoType;
         ASSERT(static_cast<PseudoType>(m_pseudoType) == pseudoType); // using a bitfield.
     }
 
     unsigned specificityForOneSelector() const;
     unsigned specificityForPage() const;
 
@@ skipping 99 matching lines @@
 inline CSSSelector::CSSSelector()
     : m_relation(SubSelector)
     , m_match(Unknown)
     , m_pseudoType(PseudoUnknown)
     , m_isLastInSelectorList(false)
     , m_isLastInTagHistory(true)
     , m_hasRareData(false)
     , m_isForPage(false)
     , m_tagIsImplicit(false)
     , m_relationIsAffectedByPseudoContent(false)
+    , m_relationIsAffectedByPseudoSlotted(false)
 {
 }
 
 inline CSSSelector::CSSSelector(const QualifiedName& tagQName, bool tagIsImplicit)
     : m_relation(SubSelector)
     , m_match(Tag)
     , m_pseudoType(PseudoUnknown)
     , m_isLastInSelectorList(false)
     , m_isLastInTagHistory(true)
     , m_hasRareData(false)
     , m_isForPage(false)
     , m_tagIsImplicit(tagIsImplicit)
     , m_relationIsAffectedByPseudoContent(false)
+    , m_relationIsAffectedByPseudoSlotted(false)
 {
     m_data.m_tagQName = tagQName.impl();
     m_data.m_tagQName->ref();
 }
 
 inline CSSSelector::CSSSelector(const CSSSelector& o)
     : m_relation(o.m_relation)
     , m_match(o.m_match)
     , m_pseudoType(o.m_pseudoType)
     , m_isLastInSelectorList(o.m_isLastInSelectorList)
     , m_isLastInTagHistory(o.m_isLastInTagHistory)
     , m_hasRareData(o.m_hasRareData)
     , m_isForPage(o.m_isForPage)
     , m_tagIsImplicit(o.m_tagIsImplicit)
     , m_relationIsAffectedByPseudoContent(o.m_relationIsAffectedByPseudoContent)
+    , m_relationIsAffectedByPseudoSlotted(o.m_relationIsAffectedByPseudoSlotted)
 {
     if (o.m_match == Tag) {
         m_data.m_tagQName = o.m_data.m_tagQName;
         m_data.m_tagQName->ref();
     } else if (o.m_hasRareData) {
         m_data.m_rareData = o.m_data.m_rareData;
         m_data.m_rareData->ref();
     } else if (o.m_data.m_value) {
         m_data.m_value = o.m_data.m_value;
         m_data.m_value->ref();
@@ skipping 32 matching lines @@
     if (m_hasRareData)
         return m_data.m_rareData->m_serializingValue;
     // AtomicString is really just a StringImpl* so the cast below is safe.
     // FIXME: Perhaps call sites could be changed to accept StringImpl?
     return *reinterpret_cast<const AtomicString*>(&m_data.m_value);
 }
 
 } // namespace blink
 
 #endif // CSSSelector_h