1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef HTMLCollection_h 24 #define HTMLCollection_h 25 26 #include "CollectionType.h" 27 #include <wtf/RefCounted.h> 28 #include <wtf/Forward.h> 29 #include <wtf/HashMap.h> 30 #include <wtf/Vector.h> 31 32 namespace WebCore { 33 34 class Element; 35 class Node; 36 class NodeList; 37 38 struct CollectionCache; 39 40 class HTMLCollection : public RefCounted<HTMLCollection> { 41 public: 42 static PassRefPtr<HTMLCollection> create(PassRefPtr<Node> base, CollectionType); 43 virtual ~HTMLCollection(); 44 45 unsigned length() const; 46 47 virtual Node* item(unsigned index) const; 48 virtual Node* nextItem() const; 49 50 virtual Node* namedItem(const AtomicString& name) const; 51 virtual Node* nextNamedItem(const AtomicString& name) const; // In case of multiple items named the same way 52 53 Node* firstItem() const; 54 55 void namedItems(const AtomicString& name, Vector<RefPtr<Node> >&) const; 56 57 PassRefPtr<NodeList> tags(const String&); 58 59 Node* base() const { return m_base.get(); } 60 CollectionType type() const { return m_type; } 61 62 protected: 63 HTMLCollection(PassRefPtr<Node> base, CollectionType, CollectionCache*); 64 HTMLCollection(PassRefPtr<Node> base, CollectionType); 65 66 CollectionCache* info() const { return m_info; } 67 void resetCollectionInfo() const; 68 69 mutable bool m_idsDone; // for nextNamedItem() 70 71 private: 72 virtual Element* itemAfter(Element*) const; 73 virtual unsigned calcLength() const; 74 virtual void updateNameCache() const; 75 76 bool checkForNameMatch(Element*, bool checkName, const AtomicString& name) const; 77 78 RefPtr<Node> m_base; 79 CollectionType m_type; 80 81 mutable CollectionCache* m_info; 82 mutable bool m_ownsInfo; 83 }; 84 85 } // namespace 86 87 #endif 88
