unoxml/source/dom/characterdata.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 "characterdata.hxx"
  21
  22 #include <string.h>
  23
  24 #include <memory>
  25
  26 #include <osl/diagnose.h>
  27
  28 #include <com/sun/star/xml/dom/DOMException.hpp>
  29 #include <com/sun/star/xml/dom/events/XDocumentEvent.hpp>
  30 #include <com/sun/star/xml/dom/events/XMutationEvent.hpp>
  31
  32 using namespace css::uno;
  33 using namespace css::xml::dom;
  34 using namespace css::xml::dom::events;
  35
  36 namespace DOM
  37 {
  38
  39     CCharacterData::CCharacterData(
  40             CDocument const& rDocument, ::osl::Mutex const& rMutex,
  41             NodeType const& reNodeType, xmlNodePtr const& rpNode)
  42         : CCharacterData_Base(rDocument, rMutex, reNodeType, rpNode)
  43     {
  44     }
  45
  46     void CCharacterData::dispatchEvent_Impl(
  47             OUString const& prevValue, OUString const& newValue)
  48     {
  49         Reference< XDocumentEvent > docevent(getOwnerDocument(), UNO_QUERY);
  50         Reference< XMutationEvent > event(docevent->createEvent(
  51             "DOMCharacterDataModified"), UNO_QUERY);
  52         event->initMutationEvent(
  53                 "DOMCharacterDataModified",
  54                 true, false, Reference< XNode >(),
  55                 prevValue, newValue, OUString(), AttrChangeType(0) );
  56         dispatchEvent(event);
  57         dispatchSubtreeModified();
  58     }
  59
  60     /**
  61     Append the string to the end of the character data of the node.
  62     */
  63     void SAL_CALL CCharacterData::appendData(const OUString& arg)
  64     {
  65         ::osl::ClearableMutexGuard guard(m_rMutex);
  66
  67         if (m_aNodePtr != nullptr)
  68         {
  69             OUString oldValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
  70             xmlNodeAddContent(m_aNodePtr, reinterpret_cast<const xmlChar*>(OUStringToOString(arg, RTL_TEXTENCODING_UTF8).getStr()));
  71             OUString newValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
  72
  73             guard.clear(); // release mutex before calling event handlers
  74             dispatchEvent_Impl(oldValue, newValue);
  75         }
  76     }
  77
  78     /**
  79     Remove a range of 16-bit units from the node.
  80     */
  81     void SAL_CALL CCharacterData::deleteData(sal_Int32 offset, sal_Int32 count)
  82     {
  83         ::osl::ClearableMutexGuard guard(m_rMutex);
  84
  85         if (m_aNodePtr == nullptr)
  86             return;
  87
  88         // get current data
  89         std::shared_ptr<xmlChar const> const pContent(
  90             xmlNodeGetContent(m_aNodePtr), xmlFree);
  91         std::string_view aData(reinterpret_cast<char const*>(pContent.get()));
  92         OUString tmp(OStringToOUString(aData, RTL_TEXTENCODING_UTF8));
  93         if (offset > tmp.getLength() || offset < 0 || count < 0) {
  94             DOMException e;
  95             e.Code = DOMExceptionType_INDEX_SIZE_ERR;
  96             throw e;
  97         }
  98         if ((offset+count) > tmp.getLength())
  99             count = tmp.getLength() - offset;
 100
 101         OUString tmp2 = OUString::Concat(tmp.subView(0, offset)) + tmp.subView(offset+count);
 102         OUString oldValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 103         xmlNodeSetContent(m_aNodePtr, reinterpret_cast<const xmlChar*>(OUStringToOString(tmp2, RTL_TEXTENCODING_UTF8).getStr()));
 104         OUString newValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 105
 106         guard.clear(); // release mutex before calling event handlers
 107         dispatchEvent_Impl(oldValue, newValue);
 108
 109     }
 110
 111
 112     /**
 113     Return the character data of the node that implements this interface.
 114     */
 115     OUString SAL_CALL CCharacterData::getData()
 116     {
 117         ::osl::MutexGuard const g(m_rMutex);
 118
 119         OUString aData;
 120         if (m_aNodePtr != nullptr)
 121         {
 122             OSL_ENSURE(m_aNodePtr->content, "character data node with NULL content, please inform lars.oppermann@sun.com!");
 123             if (m_aNodePtr->content != nullptr)
 124             {
 125                 aData = OUString(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)),  RTL_TEXTENCODING_UTF8);
 126             }
 127         }
 128         return aData;
 129     }
 130
 131     /**
 132     The number of 16-bit units that are available through data and the
 133     substringData method below.
 134     */
 135     sal_Int32 SAL_CALL CCharacterData::getLength()
 136     {
 137         ::osl::MutexGuard const g(m_rMutex);
 138
 139         sal_Int32 length = 0;
 140         if (m_aNodePtr != nullptr)
 141         {
 142              OUString aData(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)),  RTL_TEXTENCODING_UTF8);
 143              length = aData.getLength();
 144         }
 145         return length;
 146     }
 147
 148     /**
 149     Insert a string at the specified 16-bit unit offset.
 150     */
 151     void SAL_CALL CCharacterData::insertData(sal_Int32 offset, const OUString& arg)
 152     {
 153         ::osl::ClearableMutexGuard guard(m_rMutex);
 154
 155         if (m_aNodePtr == nullptr)
 156             return;
 157
 158         // get current data
 159         std::shared_ptr<xmlChar const> const pContent(
 160             xmlNodeGetContent(m_aNodePtr), xmlFree);
 161         std::string_view aData(reinterpret_cast<char const*>(pContent.get()));
 162         OUString tmp(OStringToOUString(aData, RTL_TEXTENCODING_UTF8));
 163         if (offset > tmp.getLength() || offset < 0) {
 164             DOMException e;
 165             e.Code = DOMExceptionType_INDEX_SIZE_ERR;
 166             throw e;
 167         }
 168
 169         OUString tmp2 = tmp.subView(0, offset) +
 170             arg +
 171             tmp.subView(offset);
 172         OUString oldValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 173         xmlNodeSetContent(m_aNodePtr, reinterpret_cast<const xmlChar*>(OUStringToOString(tmp2, RTL_TEXTENCODING_UTF8).getStr()));
 174         OUString newValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 175
 176         guard.clear(); // release mutex before calling event handlers
 177         dispatchEvent_Impl(oldValue, newValue);
 178
 179     }
 180
 181
 182     /**
 183     Replace the characters starting at the specified 16-bit unit offset
 184     with the specified string.
 185     */
 186     void SAL_CALL CCharacterData::replaceData(sal_Int32 offset, sal_Int32 count, const OUString& arg)
 187     {
 188         ::osl::ClearableMutexGuard guard(m_rMutex);
 189
 190         if (m_aNodePtr == nullptr)
 191             return;
 192
 193         // get current data
 194         std::shared_ptr<xmlChar const> const pContent(
 195             xmlNodeGetContent(m_aNodePtr), xmlFree);
 196         std::string_view aData(reinterpret_cast<char const*>(pContent.get()));
 197         OUString tmp(OStringToOUString(aData, RTL_TEXTENCODING_UTF8));
 198         if (offset > tmp.getLength() || offset < 0 || count < 0){
 199             DOMException e;
 200             e.Code = DOMExceptionType_INDEX_SIZE_ERR;
 201             throw e;
 202         }
 203         if ((offset+count) > tmp.getLength())
 204             count = tmp.getLength() - offset;
 205
 206         OUString tmp2 = tmp.subView(0, offset) +
 207             arg +
 208             tmp.subView(offset+count);
 209         OUString oldValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 210         xmlNodeSetContent(m_aNodePtr, reinterpret_cast<const xmlChar*>(OUStringToOString(tmp2, RTL_TEXTENCODING_UTF8).getStr()));
 211         OUString newValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 212
 213         guard.clear(); // release mutex before calling event handlers
 214         dispatchEvent_Impl(oldValue, newValue);
 215
 216     }
 217
 218     /**
 219     Set the character data of the node that implements this interface.
 220     */
 221     void SAL_CALL CCharacterData::setData(const OUString& data)
 222     {
 223         ::osl::ClearableMutexGuard guard(m_rMutex);
 224
 225         if (m_aNodePtr != nullptr)
 226         {
 227             OUString oldValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 228             xmlNodeSetContent(m_aNodePtr, reinterpret_cast<const xmlChar*>(OUStringToOString(data, RTL_TEXTENCODING_UTF8).getStr()));
 229             OUString newValue(reinterpret_cast<char*>(m_aNodePtr->content), strlen(reinterpret_cast<char*>(m_aNodePtr->content)), RTL_TEXTENCODING_UTF8);
 230
 231             guard.clear(); // release mutex before calling event handlers
 232             dispatchEvent_Impl(oldValue, newValue);
 233         }
 234     }
 235
 236     /**
 237     Extracts a range of data from the node.
 238     */
 239     OUString SAL_CALL CCharacterData::subStringData(sal_Int32 offset, sal_Int32 count)
 240     {
 241         ::osl::MutexGuard const g(m_rMutex);
 242
 243         OUString aStr;
 244         if (m_aNodePtr != nullptr)
 245         {
 246             // get current data
 247             std::shared_ptr<xmlChar const> const pContent(
 248                 xmlNodeGetContent(m_aNodePtr), xmlFree);
 249             std::string_view aData(reinterpret_cast<char const*>(pContent.get()));
 250             OUString tmp(OStringToOUString(aData, RTL_TEXTENCODING_UTF8));
 251             if (offset > tmp.getLength() || offset < 0 || count < 0) {
 252                 DOMException e;
 253                 e.Code = DOMExceptionType_INDEX_SIZE_ERR;
 254                 throw e;
 255             }
 256             aStr = tmp.copy(offset, count);
 257         }
 258         return aStr;
 259     }
 260
 261
 262 } // namespace DOM
 263
 264 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */