[188] | 1 | #ifndef DOMNodeIteratorImpl_HEADER_GUARD_
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| 2 | #define DOMNodeIteratorImpl_HEADER_GUARD_
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| 3 |
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| 4 | /*
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| 5 | * The Apache Software License, Version 1.1
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| 6 | *
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| 7 | * Copyright (c) 2001-2002 The Apache Software Foundation. All rights
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| 8 | * reserved.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without
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| 11 | * modification, are permitted provided that the following conditions
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| 12 | * are met:
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| 13 | *
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| 14 | * 1. Redistributions of source code must retain the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer.
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| 16 | *
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| 17 | * 2. Redistributions in binary form must reproduce the above copyright
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| 18 | * notice, this list of conditions and the following disclaimer in
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| 19 | * the documentation and/or other materials provided with the
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| 20 | * distribution.
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| 21 | *
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| 22 | * 3. The end-user documentation included with the redistribution,
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| 23 | * if any, must include the following acknowledgment:
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| 24 | * "This product includes software developed by the
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| 25 | * Apache Software Foundation (http://www.apache.org/)."
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| 26 | * Alternately, this acknowledgment may appear in the software itself,
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| 27 | * if and wherever such third-party acknowledgments normally appear.
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| 28 | *
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| 29 | * 4. The names "Xerces" and "Apache Software Foundation" must
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| 30 | * not be used to endorse or promote products derived from this
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| 31 | * software without prior written permission. For written
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| 32 | * permission, please contact apache\@apache.org.
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| 33 | *
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| 34 | * 5. Products derived from this software may not be called "Apache",
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| 35 | * nor may "Apache" appear in their name, without prior written
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| 36 | * permission of the Apache Software Foundation.
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| 37 | *
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| 38 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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| 39 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 40 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 41 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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| 42 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 43 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 44 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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| 45 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 46 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 47 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 48 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 49 | * SUCH DAMAGE.
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| 50 | * ====================================================================
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| 51 | *
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| 52 | * This software consists of voluntary contributions made by many
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| 53 | * individuals on behalf of the Apache Software Foundation, and was
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| 54 | * originally based on software copyright (c) 2001, International
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| 55 | * Business Machines, Inc., http://www.ibm.com . For more information
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| 56 | * on the Apache Software Foundation, please see
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| 57 | * <http://www.apache.org/>.
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| 58 | */
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| 59 |
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| 60 | /*
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| 61 | * $Id: DOMNodeIteratorImpl.hpp,v 1.4 2003/01/16 19:10:41 tng Exp $
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| 62 | */
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| 63 |
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| 64 | //
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| 65 | // This file is part of the internal implementation of the C++ XML DOM.
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| 66 | // It should NOT be included or used directly by application programs.
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| 67 | //
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| 68 | // Applications should include the file <xercesc/dom/DOM.hpp> for the entire
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| 69 | // DOM API, or xercesc/dom/DOM*.hpp for individual DOM classes, where the class
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| 70 | // name is substituded for the *.
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| 71 | //
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| 72 |
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| 73 | //////////////////////////////////////////////////////////////////////
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| 74 | // DOMNodeIteratorImpl.hpp: interface for the DOMNodeIteratorImpl class.
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| 75 | //
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| 76 | //////////////////////////////////////////////////////////////////////
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| 77 |
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| 78 | #include <xercesc/dom/DOMNode.hpp>
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| 79 | #include <xercesc/dom/DOMNodeIterator.hpp>
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| 80 |
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| 81 | XERCES_CPP_NAMESPACE_BEGIN
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| 82 |
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| 83 | class CDOM_EXPORT DOMNodeIteratorImpl : public DOMNodeIterator {
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| 84 | private:
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| 85 | //
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| 86 | // Data
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| 87 | //
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| 88 | // The root.
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| 89 | DOMNode* fRoot;
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| 90 |
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| 91 | // The Document used to create this iterator
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| 92 | DOMDocument* fDocument;
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| 93 |
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| 94 | // The whatToShow mask.
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| 95 | unsigned long fWhatToShow;
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| 96 |
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| 97 | // The NodeFilter reference.
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| 98 | DOMNodeFilter* fNodeFilter;
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| 99 |
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| 100 |
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| 101 | // The expandEntity reference flag.
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| 102 | bool fExpandEntityReferences;
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| 103 | bool fDetached;
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| 104 |
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| 105 |
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| 106 | //
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| 107 | // Iterator state - current node and direction.
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| 108 | //
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| 109 | // Note: The current node and direction are sufficient to implement
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| 110 | // the desired behaviour of the current pointer being _between_
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| 111 | // two nodes. The fCurrentNode is actually the last node returned,
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| 112 | // and the
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| 113 | // direction is whether the pointer is in front or behind this node.
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| 114 | // (usually akin to whether the node was returned via nextNode())
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| 115 | // (eg fForward = true) or previousNode() (eg fForward = false).
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| 116 | // The last Node returned.
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| 117 | DOMNode* fCurrentNode;
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| 118 |
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| 119 | // The direction of the iterator on the fCurrentNode.
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| 120 | // <pre>
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| 121 | // nextNode() == fForward = true;
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| 122 | // previousNode() == fForward = false;
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| 123 | // </pre>
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| 124 | bool fForward;
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| 125 |
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| 126 | public:
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| 127 | virtual ~DOMNodeIteratorImpl ();
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| 128 | DOMNodeIteratorImpl (
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| 129 | DOMDocument* fDocument,
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| 130 | DOMNode* root,
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| 131 | unsigned long whatToShow,
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| 132 | DOMNodeFilter* nodeFilter,
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| 133 | bool expandEntityRef);
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| 134 |
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| 135 | DOMNodeIteratorImpl ( const DOMNodeIteratorImpl& toCopy);
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| 136 | DOMNodeIteratorImpl& operator= (const DOMNodeIteratorImpl& other);
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| 137 |
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| 138 | virtual DOMNode* getRoot ();
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| 139 | virtual unsigned long getWhatToShow ();
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| 140 | virtual DOMNodeFilter* getFilter ();
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| 141 | // Get the expandEntity reference flag.
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| 142 | virtual bool getExpandEntityReferences();
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| 143 |
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| 144 | virtual DOMNode* nextNode ();
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| 145 | virtual DOMNode* previousNode ();
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| 146 | virtual void detach ();
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| 147 |
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| 148 | virtual void release();
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| 149 | void removeNode (DOMNode* node);
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| 150 |
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| 151 | private:
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| 152 | DOMNode* matchNodeOrParent (DOMNode* node);
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| 153 | DOMNode* nextNode (DOMNode* node, bool visitChildren);
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| 154 | DOMNode* previousNode (DOMNode* node);
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| 155 | bool acceptNode (DOMNode* node);
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| 156 |
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| 157 | };
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| 158 |
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| 159 | XERCES_CPP_NAMESPACE_END
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| 160 |
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| 161 | #endif
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