1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@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 32namespace WebCore { 33 34class AtomicString; 35class AtomicStringImpl; 36class Element; 37class Node; 38class NodeList; 39class String; 40 41struct CollectionCache; 42 43class HTMLCollection : public RefCounted<HTMLCollection> { 44public: 45 static PassRefPtr<HTMLCollection> create(PassRefPtr<Node> base, CollectionType); 46 virtual ~HTMLCollection(); 47 48 unsigned length() const; 49 50 virtual Node* item(unsigned index) const; 51 virtual Node* nextItem() const; 52 53 virtual Node* namedItem(const AtomicString& name) const; 54 virtual Node* nextNamedItem(const AtomicString& name) const; // In case of multiple items named the same way 55 56 Node* firstItem() const; 57 58 void namedItems(const AtomicString& name, Vector<RefPtr<Node> >&) const; 59 60 PassRefPtr<NodeList> tags(const String&); 61 62 Node* base() const { return m_base.get(); } 63 CollectionType type() const { return m_type; } 64 65protected: 66 HTMLCollection(PassRefPtr<Node> base, CollectionType, CollectionCache*); 67 HTMLCollection(PassRefPtr<Node> base, CollectionType); 68 69 CollectionCache* info() const { return m_info; } 70 void resetCollectionInfo() const; 71 72 mutable bool m_idsDone; // for nextNamedItem() 73 74private: 75 virtual Element* itemAfter(Element*) const; 76 virtual unsigned calcLength() const; 77 virtual void updateNameCache() const; 78 79 bool checkForNameMatch(Element*, bool checkName, const AtomicString& name) const; 80 81 RefPtr<Node> m_base; 82 CollectionType m_type; 83 84 mutable CollectionCache* m_info; 85 mutable bool m_ownsInfo; 86}; 87 88} // namespace 89 90#endif 91