1 /* 2 * Copyright (C) 2005 Frerich Raabe <raabe@kde.org> 3 * Copyright (C) 2006, 2009 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef XPathResult_h 28 #define XPathResult_h 29 30 #include "bindings/v8/ScriptWrappable.h" 31 #include "core/xml/XPathValue.h" 32 #include "platform/heap/Handle.h" 33 #include "wtf/Forward.h" 34 #include "wtf/RefCounted.h" 35 36 namespace WebCore { 37 38 class Document; 39 class ExceptionState; 40 class Node; 41 42 class XPathResult : public RefCountedWillBeGarbageCollectedFinalized<XPathResult>, public ScriptWrappable { 43 public: 44 enum XPathResultType { 45 ANY_TYPE = 0, 46 NUMBER_TYPE = 1, 47 STRING_TYPE = 2, 48 BOOLEAN_TYPE = 3, 49 UNORDERED_NODE_ITERATOR_TYPE = 4, 50 ORDERED_NODE_ITERATOR_TYPE = 5, 51 UNORDERED_NODE_SNAPSHOT_TYPE = 6, 52 ORDERED_NODE_SNAPSHOT_TYPE = 7, 53 ANY_UNORDERED_NODE_TYPE = 8, 54 FIRST_ORDERED_NODE_TYPE = 9 55 }; 56 create(Document * document,const XPath::Value & value)57 static PassRefPtrWillBeRawPtr<XPathResult> create(Document* document, const XPath::Value& value) 58 { 59 return adoptRefWillBeNoop(new XPathResult(document, value)); 60 } 61 ~XPathResult(); 62 63 void convertTo(unsigned short type, ExceptionState&); 64 65 unsigned short resultType() const; 66 67 double numberValue(ExceptionState&) const; 68 String stringValue(ExceptionState&) const; 69 bool booleanValue(ExceptionState&) const; 70 Node* singleNodeValue(ExceptionState&) const; 71 72 bool invalidIteratorState() const; 73 unsigned long snapshotLength(ExceptionState&) const; 74 Node* iterateNext(ExceptionState&); 75 Node* snapshotItem(unsigned long index, ExceptionState&); 76 value()77 const XPath::Value& value() const { return m_value; } 78 79 void trace(Visitor*); 80 81 private: 82 XPathResult(Document*, const XPath::Value&); nodeSet()83 XPath::NodeSet& nodeSet() { return *m_nodeSet; } 84 85 XPath::Value m_value; 86 unsigned m_nodeSetPosition; 87 OwnPtrWillBeMember<XPath::NodeSet> m_nodeSet; // FIXME: why duplicate the node set stored in m_value? 88 unsigned short m_resultType; 89 RefPtrWillBeMember<Document> m_document; 90 uint64_t m_domTreeVersion; 91 }; 92 93 } // namespace WebCore 94 95 #endif // XPathResult_h 96