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3 * Copyright (C) 2014 Samsung Electronics. All rights reserved.
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27 #ifndef SelectorQuery_h
28 #define SelectorQuery_h
30 #include "core/css/CSSSelectorList.h"
31 #include "wtf/HashMap.h"
32 #include "wtf/Vector.h"
33 #include "wtf/text/AtomicStringHash.h"
45 class SpaceSplitString;
47 class SelectorDataList {
49 void initialize(const CSSSelectorList&);
50 bool matches(Element&) const;
51 PassRefPtr<NodeList> queryAll(ContainerNode& rootNode) const;
52 PassRefPtr<Element> queryFirst(ContainerNode& rootNode) const;
56 SelectorData(const CSSSelector* selector, bool isFastCheckable) : selector(selector), isFastCheckable(isFastCheckable) { }
57 const CSSSelector* selector;
61 bool canUseFastQuery(const ContainerNode& rootNode) const;
62 bool selectorMatches(const SelectorData&, Element&, const ContainerNode&) const;
64 template <typename SelectorQueryTrait>
65 void collectElementsByClassName(ContainerNode& rootNode, const AtomicString& className, typename SelectorQueryTrait::OutputType&) const;
66 template <typename SelectorQueryTrait>
67 void collectElementsByTagName(ContainerNode& rootNode, const QualifiedName& tagName, typename SelectorQueryTrait::OutputType&) const;
69 template <typename SelectorQueryTrait>
70 void findTraverseRootsAndExecute(ContainerNode& rootNode, typename SelectorQueryTrait::OutputType&) const;
72 enum MatchTraverseRootState { DoesNotMatchTraverseRoots, MatchesTraverseRoots };
73 template <typename SelectorQueryTrait>
74 void executeForTraverseRoot(const SelectorData&, Node* traverseRoot, MatchTraverseRootState, ContainerNode& rootNode, typename SelectorQueryTrait::OutputType&) const;
75 template <typename SelectorQueryTrait, typename SimpleNodeListType>
76 void executeForTraverseRoots(const SelectorData&, SimpleNodeListType& traverseRoots, MatchTraverseRootState, ContainerNode& rootNode, typename SelectorQueryTrait::OutputType&) const;
78 template <typename SelectorQueryTrait>
79 void executeSlow(ContainerNode& rootNode, typename SelectorQueryTrait::OutputType&) const;
80 template <typename SelectorQueryTrait>
81 void execute(ContainerNode& rootNode, typename SelectorQueryTrait::OutputType&) const;
82 const CSSSelector* selectorForIdLookup(const CSSSelector*) const;
84 Vector<SelectorData> m_selectors;
88 WTF_MAKE_NONCOPYABLE(SelectorQuery);
89 WTF_MAKE_FAST_ALLOCATED;
91 explicit SelectorQuery(const CSSSelectorList&);
92 bool matches(Element&) const;
93 PassRefPtr<NodeList> queryAll(ContainerNode& rootNode) const;
94 PassRefPtr<Element> queryFirst(ContainerNode& rootNode) const;
96 SelectorDataList m_selectors;
97 CSSSelectorList m_selectorList;
100 class SelectorQueryCache {
101 WTF_MAKE_FAST_ALLOCATED;
103 SelectorQuery* add(const AtomicString&, const Document&, ExceptionState&);
107 HashMap<AtomicString, OwnPtr<SelectorQuery> > m_entries;