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