unoxml/source/dom/childlist.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <childlist.hxx>
  21
  22 #include <libxml/tree.h>
  23
  24 #include <node.hxx>
  25 #include <document.hxx>
  26
  27
  28 namespace DOM
  29 {
  30     CChildList::CChildList(::rtl::Reference<CNode> const& pBase,
  31                 ::osl::Mutex & rMutex)
  32         : m_pNode(pBase)
  33         , m_rMutex(rMutex)
  34     {
  35     }
  36
  37     /**
  38     The number of nodes in the list.
  39     */
  40     sal_Int32 SAL_CALL CChildList::getLength() throw (RuntimeException)
  41     {
  42         ::osl::MutexGuard const g(m_rMutex);
  43
  44         sal_Int32 length = 0;
  45         if (m_pNode != NULL)
  46         {
  47             xmlNodePtr cur = m_pNode->GetNodePtr();
  48             if (0 != cur) {
  49                 cur = cur->children;
  50             }
  51             while (cur != NULL)
  52             {
  53                 length++;
  54                 cur = cur->next;
  55             }
  56         }
  57         return length;
  58
  59     }
  60     /**
  61     Returns the indexth item in the collection.
  62     */
  63     Reference< XNode > SAL_CALL CChildList::item(sal_Int32 index)
  64         throw (RuntimeException)
  65     {
  66         ::osl::MutexGuard const g(m_rMutex);
  67
  68         if (m_pNode != NULL)
  69         {
  70             xmlNodePtr cur = m_pNode->GetNodePtr();
  71             if (0 != cur) {
  72                 cur = cur->children;
  73             }
  74             while (cur != NULL)
  75             {
  76                 if (index-- == 0) {
  77                     return Reference< XNode >(
  78                             m_pNode->GetOwnerDocument().GetCNode(cur).get());
  79                 }
  80                 cur = cur->next;
  81             }
  82         }
  83         return 0;
  84     }
  85 }
  86
  87 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */