1 /* 2 * Copyright (C) 2005 Frerich Raabe <raabe (at) 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 #if ENABLE(XPATH) 31 32 #include "XPathValue.h" 33 #include <wtf/Forward.h> 34 #include <wtf/RefCounted.h> 35 36 namespace WebCore { 37 38 typedef int ExceptionCode; 39 40 class Document; 41 class Node; 42 43 class XPathResult : public RefCounted<XPathResult> { 44 public: 45 enum XPathResultType { 46 ANY_TYPE = 0, 47 NUMBER_TYPE = 1, 48 STRING_TYPE = 2, 49 BOOLEAN_TYPE = 3, 50 UNORDERED_NODE_ITERATOR_TYPE = 4, 51 ORDERED_NODE_ITERATOR_TYPE = 5, 52 UNORDERED_NODE_SNAPSHOT_TYPE = 6, 53 ORDERED_NODE_SNAPSHOT_TYPE = 7, 54 ANY_UNORDERED_NODE_TYPE = 8, 55 FIRST_ORDERED_NODE_TYPE = 9 56 }; 57 58 static PassRefPtr<XPathResult> create(Document* document, const XPath::Value& value) { return adoptRef(new XPathResult(document, value)); } 59 ~XPathResult(); 60 61 void convertTo(unsigned short type, ExceptionCode&); 62 63 unsigned short resultType() const; 64 65 double numberValue(ExceptionCode&) const; 66 String stringValue(ExceptionCode&) const; 67 bool booleanValue(ExceptionCode&) const; 68 Node* singleNodeValue(ExceptionCode&) const; 69 70 bool invalidIteratorState() const; 71 unsigned long snapshotLength(ExceptionCode&) const; 72 Node* iterateNext(ExceptionCode&); 73 Node* snapshotItem(unsigned long index, ExceptionCode&); 74 75 private: 76 XPathResult(Document*, const XPath::Value&); 77 78 XPath::Value m_value; 79 unsigned m_nodeSetPosition; 80 XPath::NodeSet m_nodeSet; // FIXME: why duplicate the node set stored in m_value? 81 unsigned short m_resultType; 82 RefPtr<Document> m_document; 83 uint64_t m_domTreeVersion; 84 }; 85 86 } // namespace WebCore 87 88 #endif // ENABLE(XPATH) 89 90 #endif // XPathResult_h 91
