xmloff/source/text/XMLChangedRegionImportContext.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 "XMLChangedRegionImportContext.hxx"
  21 #include "XMLChangeElementImportContext.hxx"
  22 #include <com/sun/star/uno/Reference.h>
  23 #include <com/sun/star/util/DateTime.hpp>
  24 #include <com/sun/star/text/XTextCursor.hpp>
  25
  26 #include <sax/tools/converter.hxx>
  27
  28 #include <xmloff/xmlimp.hxx>
  29 #include <xmloff/xmlnamespace.hxx>
  30 #include <xmloff/namespacemap.hxx>
  31 #include <xmloff/xmltoken.hxx>
  32
  33
  34 using namespace ::xmloff::token;
  35
  36 using ::com::sun::star::uno::Reference;
  37 using ::com::sun::star::text::XTextCursor;
  38 using namespace ::com::sun::star;
  39 using ::com::sun::star::xml::sax::XAttributeList;
  40
  41
  42 XMLChangedRegionImportContext::XMLChangedRegionImportContext(SvXMLImport& rImport) :
  43         SvXMLImportContext(rImport),
  44         bMergeLastPara(true)
  45 {
  46 }
  47
  48 XMLChangedRegionImportContext::~XMLChangedRegionImportContext()
  49 {
  50 }
  51
  52 void XMLChangedRegionImportContext::StartElement(
  53     const Reference<XAttributeList> & xAttrList)
  54 {
  55     // process attributes: id
  56     bool bHaveXmlId( false );
  57     sal_Int16 nLength = xAttrList->getLength();
  58     for(sal_Int16 nAttr = 0; nAttr < nLength; nAttr++)
  59     {
  60         OUString sLocalName;
  61         sal_uInt16 nPrefix = GetImport().GetNamespaceMap().
  62             GetKeyByAttrName( xAttrList->getNameByIndex(nAttr),
  63                               &sLocalName );
  64
  65         const OUString sValue = xAttrList->getValueByIndex(nAttr);
  66         if (XML_NAMESPACE_XML == nPrefix)
  67         {
  68             if (IsXMLToken(sLocalName, XML_ID))
  69             {
  70                 sID = sValue;
  71                 bHaveXmlId = true;
  72             }
  73         }
  74         else if (XML_NAMESPACE_TEXT == nPrefix)
  75         {
  76             if (IsXMLToken(sLocalName, XML_ID))
  77             {
  78                 if (!bHaveXmlId) { sID = sValue; }
  79             }
  80             else if( IsXMLToken( sLocalName, XML_MERGE_LAST_PARAGRAPH ) )
  81             {
  82                 bool bTmp(false);
  83                 if (::sax::Converter::convertBool(bTmp, sValue))
  84                 {
  85                     bMergeLastPara = bTmp;
  86                 }
  87             }
  88         }
  89     }
  90 }
  91
  92 SvXMLImportContextRef XMLChangedRegionImportContext::CreateChildContext(
  93     sal_uInt16 nPrefix,
  94     const OUString& rLocalName,
  95     const Reference<XAttributeList> & /*xAttrList*/)
  96 {
  97     SvXMLImportContextRef xContext;
  98
  99     if (XML_NAMESPACE_TEXT == nPrefix)
 100     {
 101         // from the ODF 1.2 standard :
 102         // The <text:changed-region> element has the following child elements:
 103         // <text:deletion>, <text:format-change> and <text:insertion>.
 104         if ( IsXMLToken( rLocalName, XML_INSERTION ) ||
 105              IsXMLToken( rLocalName, XML_DELETION ) ||
 106              IsXMLToken( rLocalName, XML_FORMAT_CHANGE ) )
 107         {
 108             // create XMLChangeElementImportContext for all kinds of changes
 109             xContext = new XMLChangeElementImportContext(
 110                GetImport(), nPrefix, rLocalName,
 111                IsXMLToken( rLocalName, XML_DELETION ),
 112                *this);
 113         }
 114         // else: it may be a text element, see below
 115     }
 116
 117     if (!xContext)
 118     {
 119         // illegal element content! TODO: discard the redlines
 120         // for the moment -> use text
 121         // or default if text fail
 122     }
 123
 124     return xContext;
 125 }
 126
 127 void XMLChangedRegionImportContext::endFastElement(sal_Int32 )
 128 {
 129     // restore old XCursor (if necessary)
 130     if (xOldCursor.is())
 131     {
 132         // delete last paragraph
 133         // (one extra paragraph was inserted in the beginning)
 134         rtl::Reference<XMLTextImportHelper> rHelper =
 135             GetImport().GetTextImport();
 136         rHelper->DeleteParagraph();
 137
 138         GetImport().GetTextImport()->SetCursor(xOldCursor);
 139         xOldCursor = nullptr;
 140     }
 141 }
 142
 143 void XMLChangedRegionImportContext::SetChangeInfo(
 144     const OUString& rType,
 145     const OUString& rAuthor,
 146     const OUString& rComment,
 147     const OUString& rDate)
 148 {
 149     util::DateTime aDateTime;
 150     if (::sax::Converter::parseDateTime(aDateTime, rDate))
 151     {
 152         GetImport().GetTextImport()->RedlineAdd(
 153             rType, sID, rAuthor, rComment, aDateTime, bMergeLastPara);
 154     }
 155 }
 156
 157 void XMLChangedRegionImportContext::UseRedlineText()
 158 {
 159     // if we haven't already installed the redline cursor, do it now
 160     if ( xOldCursor.is())
 161         return;
 162
 163     // get TextImportHelper and old Cursor
 164     rtl::Reference<XMLTextImportHelper> rHelper(GetImport().GetTextImport());
 165     Reference<XTextCursor> xCursor( rHelper->GetCursor() );
 166
 167     // create Redline and new Cursor
 168     Reference<XTextCursor> xNewCursor =
 169         rHelper->RedlineCreateText(xCursor, sID);
 170
 171     if (xNewCursor.is())
 172     {
 173         // save old cursor and install new one
 174         xOldCursor = xCursor;
 175         rHelper->SetCursor( xNewCursor );
 176     }
 177     // else: leave as is
 178 }
 179
 180 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */