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 <sal/log.hxx>
  27 #include <sax/tools/converter.hxx>
  28
  29 #include <xmloff/xmlimp.hxx>
  30 #include <xmloff/xmlnamespace.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
  40
  41 XMLChangedRegionImportContext::XMLChangedRegionImportContext(SvXMLImport& rImport) :
  42         SvXMLImportContext(rImport),
  43         bMergeLastPara(true)
  44 {
  45 }
  46
  47 XMLChangedRegionImportContext::~XMLChangedRegionImportContext()
  48 {
  49 }
  50
  51 void XMLChangedRegionImportContext::startFastElement(
  52     sal_Int32 /*nElement*/,
  53     const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList )
  54 {
  55     // process attributes: id
  56     bool bHaveXmlId( false );
  57     for( auto& aIter : sax_fastparser::castToFastAttributeList(xAttrList) )
  58     {
  59         switch(aIter.getToken())
  60         {
  61             case XML_ELEMENT(XML, XML_ID):
  62             {
  63                 sID = aIter.toString();
  64                 bHaveXmlId = true;
  65                 break;
  66             }
  67             case XML_ELEMENT(TEXT, XML_ID):
  68             {
  69                 if (!bHaveXmlId) { sID = aIter.toString(); }
  70                 break;
  71             }
  72             case XML_ELEMENT(TEXT, XML_MERGE_LAST_PARAGRAPH):
  73             {
  74                 bool bTmp(false);
  75                 if (::sax::Converter::convertBool(bTmp, aIter.toView()))
  76                 {
  77                     bMergeLastPara = bTmp;
  78                 }
  79                 break;
  80             }
  81             default:
  82                 XMLOFF_WARN_UNKNOWN("xmloff", aIter);
  83         }
  84     }
  85 }
  86
  87 css::uno::Reference< css::xml::sax::XFastContextHandler > XMLChangedRegionImportContext::createFastChildContext(
  88     sal_Int32 nElement, const css::uno::Reference< css::xml::sax::XFastAttributeList >&  )
  89 {
  90     SvXMLImportContextRef xContext;
  91
  92     // from the ODF 1.2 standard :
  93     // The <text:changed-region> element has the following child elements:
  94     // <text:deletion>, <text:format-change> and <text:insertion>.
  95     if (nElement == XML_ELEMENT(TEXT, XML_INSERTION) ||
  96         nElement == XML_ELEMENT(TEXT, XML_DELETION) ||
  97         nElement == XML_ELEMENT(TEXT, XML_FORMAT_CHANGE) )
  98     {
  99         // create XMLChangeElementImportContext for all kinds of changes
 100         xContext = new XMLChangeElementImportContext(
 101             GetImport(),
 102             nElement == XML_ELEMENT(TEXT, XML_DELETION),
 103             *this,
 104             SvXMLImport::getNameFromToken(nElement));
 105     }
 106     else
 107         XMLOFF_WARN_UNKNOWN_ELEMENT("xmloff", nElement);
 108
 109     // illegal element content! TODO: discard the redlines
 110     // for the moment -> use text
 111     // or default if text fail
 112
 113     return xContext;
 114 }
 115
 116 void XMLChangedRegionImportContext::endFastElement(sal_Int32 )
 117 {
 118     // restore old XCursor (if necessary)
 119     if (xOldCursor.is())
 120     {
 121         // delete last paragraph
 122         // (one extra paragraph was inserted in the beginning)
 123         try
 124         {
 125             GetImport().GetTextImport()->DeleteParagraph();
 126         }
 127         catch (uno::Exception const&)
 128         {   // cursor may be disposed - must reset to old cursor!
 129             SAL_INFO("xmloff.text", "XMLChangedRegionImportContext: delete paragraph failed");
 130         }
 131
 132         GetImport().GetTextImport()->SetCursor(xOldCursor);
 133         xOldCursor = nullptr;
 134     }
 135 }
 136
 137 void XMLChangedRegionImportContext::SetChangeInfo(
 138     const OUString& rType,
 139     const OUString& rAuthor,
 140     const OUString& rComment,
 141     std::u16string_view rDate,
 142     const OUString& rMovedID)
 143 {
 144     util::DateTime aDateTime;
 145     if (::sax::Converter::parseDateTime(aDateTime, rDate))
 146     {
 147         GetImport().GetTextImport()->RedlineAdd(
 148             rType, sID, rAuthor, rComment, aDateTime, rMovedID, bMergeLastPara);
 149     }
 150 }
 151
 152 void XMLChangedRegionImportContext::UseRedlineText()
 153 {
 154     // if we haven't already installed the redline cursor, do it now
 155     if ( xOldCursor.is())
 156         return;
 157
 158     // get TextImportHelper and old Cursor
 159     rtl::Reference<XMLTextImportHelper> rHelper(GetImport().GetTextImport());
 160     Reference<XTextCursor> xCursor( rHelper->GetCursor() );
 161
 162     // create Redline and new Cursor
 163     Reference<XTextCursor> xNewCursor =
 164         rHelper->RedlineCreateText(xCursor, sID);
 165
 166     if (xNewCursor.is())
 167     {
 168         // save old cursor and install new one
 169         xOldCursor = std::move(xCursor);
 170         rHelper->SetCursor( xNewCursor );
 171     }
 172     // else: leave as is
 173 }
 174
 175 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */