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 using namespace css::uno;
  28 using namespace css::xml::dom;
  29
  30 namespace DOM
  31 {
  32     CChildList::CChildList(::rtl::Reference<CNode> const& pBase,
  33                 ::osl::Mutex & rMutex)
  34         : m_pNode(pBase)
  35         , m_rMutex(rMutex)
  36     {
  37     }
  38
  39     /**
  40     The number of nodes in the list.
  41     */
  42     sal_Int32 SAL_CALL CChildList::getLength()
  43     {
  44         ::osl::MutexGuard const g(m_rMutex);
  45
  46         sal_Int32 length = 0;
  47         if (m_pNode != nullptr)
  48         {
  49             xmlNodePtr cur = m_pNode->GetNodePtr();
  50             if (nullptr != cur) {
  51                 cur = cur->children;
  52             }
  53             while (cur != nullptr)
  54             {
  55                 length++;
  56                 cur = cur->next;
  57             }
  58         }
  59         return length;
  60
  61     }
  62     /**
  63     Returns the indexth item in the collection.
  64     */
  65     Reference< XNode > SAL_CALL CChildList::item(sal_Int32 index)
  66     {
  67         ::osl::MutexGuard const g(m_rMutex);
  68
  69         if (m_pNode != nullptr)
  70         {
  71             xmlNodePtr cur = m_pNode->GetNodePtr();
  72             if (nullptr != cur) {
  73                 cur = cur->children;
  74             }
  75             while (cur != nullptr)
  76             {
  77                 if (index-- == 0) {
  78                     return Reference< XNode >(
  79                             m_pNode->GetOwnerDocument().GetCNode(cur).get());
  80                 }
  81                 cur = cur->next;
  82             }
  83         }
  84         return nullptr;
  85     }
  86 }
  87
  88 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */