unoxml/source/xpath/nodelist.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 "nodelist.hxx"
  21
  22 #include "../dom/document.hxx"
  23
  24 using namespace css::uno;
  25 using namespace css::xml::dom;
  26
  27 namespace XPath
  28 {
  29     CNodeList::CNodeList(
  30                 ::rtl::Reference<DOM::CDocument> const& pDocument,
  31                 ::osl::Mutex & rMutex,
  32                 std::shared_ptr<xmlXPathObject> const& rxpathObj)
  33         : m_pDocument(pDocument)
  34         , m_rMutex(rMutex)
  35         , m_pNodeSet(nullptr)
  36     {
  37         if (rxpathObj != nullptr && rxpathObj->type == XPATH_NODESET)
  38         {
  39             m_pNodeSet = rxpathObj->nodesetval;
  40             m_pXPathObj = rxpathObj;
  41         }
  42     }
  43
  44     /**
  45     The number of nodes in the list.
  46     */
  47     sal_Int32 SAL_CALL CNodeList::getLength()
  48     {
  49         ::osl::MutexGuard const g(m_rMutex);
  50
  51         sal_Int32 value = 0;
  52         if (m_pNodeSet != nullptr)
  53             value = xmlXPathNodeSetGetLength(m_pNodeSet);
  54         return value;
  55     }
  56
  57     /**
  58     Returns the indexth item in the collection.
  59     */
  60     Reference< XNode > SAL_CALL CNodeList::item(sal_Int32 index)
  61     {
  62         ::osl::MutexGuard const g(m_rMutex);
  63
  64         if (nullptr == m_pNodeSet) {
  65             return nullptr;
  66         }
  67         xmlNodePtr const pNode = xmlXPathNodeSetItem(m_pNodeSet, index);
  68         Reference< XNode > const xNode(m_pDocument->GetCNode(pNode).get());
  69         return xNode;
  70     }
  71 }
  72
  73 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */