oox/source/core/relationshandler.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 <sal/config.h>
  21
  22 #include <string_view>
  23
  24 #include <oox/core/relationshandler.hxx>
  25
  26 #include <rtl/ustrbuf.hxx>
  27 #include <sal/log.hxx>
  28 #include <oox/helper/attributelist.hxx>
  29 #include <oox/token/namespaces.hxx>
  30 #include <oox/token/tokens.hxx>
  31
  32 namespace oox {
  33 namespace core {
  34
  35 using namespace ::com::sun::star::uno;
  36 using namespace ::com::sun::star::xml::sax;
  37
  38 namespace {
  39
  40 /*  Build path to relations file from passed fragment path, e.g.:
  41         'path/path/file.xml'    -> 'path/path/_rels/file.xml.rels'
  42         'file.xml'              -> '_rels/file.xml.rels'
  43         ''                      -> '_rels/.rels'
  44  */
  45 OUString lclGetRelationsPath( const OUString& rFragmentPath )
  46 {
  47     sal_Int32 nPathLen = ::std::max< sal_Int32 >( rFragmentPath.lastIndexOf( '/' ) + 1, 0 );
  48     return
  49         OUStringBuffer( rFragmentPath.copy( 0, nPathLen ) ).    // file path including slash
  50         append( "_rels/" ).                                // additional '_rels/' path
  51         append( std::u16string_view(rFragmentPath).substr(nPathLen) ).               // file name after path
  52         append( ".rels" ).                                 // '.rels' suffix
  53         makeStringAndClear();
  54 }
  55
  56 } // namespace
  57
  58 RelationsFragment::RelationsFragment( XmlFilterBase& rFilter, const RelationsRef& xRelations ) :
  59     FragmentHandler( rFilter, lclGetRelationsPath( xRelations->getFragmentPath() ), xRelations ),
  60     mxRelations( xRelations )
  61 {
  62 }
  63
  64 Reference< XFastContextHandler > RelationsFragment::createFastChildContext(
  65         sal_Int32 nElement, const Reference< XFastAttributeList >& rxAttribs )
  66 {
  67     Reference< XFastContextHandler > xRet;
  68     AttributeList aAttribs( rxAttribs );
  69     switch( nElement )
  70     {
  71         case PR_TOKEN( Relationship ):
  72         {
  73             Relation aRelation;
  74             aRelation.maId     = aAttribs.getString( XML_Id, OUString() );
  75             aRelation.maType   = aAttribs.getString( XML_Type, OUString() );
  76             aRelation.maTarget = aAttribs.getString( XML_Target, OUString() );
  77             if( !aRelation.maId.isEmpty() && !aRelation.maType.isEmpty() && !aRelation.maTarget.isEmpty() )
  78             {
  79                 sal_Int32 nTargetMode = aAttribs.getToken( XML_TargetMode, XML_Internal );
  80                 SAL_WARN_IF( (nTargetMode != XML_Internal) && (nTargetMode != XML_External), "oox",
  81                     "RelationsFragment::createFastChildContext - unexpected target mode, assuming external" );
  82                 aRelation.mbExternal = nTargetMode != XML_Internal;
  83
  84                 SAL_WARN_IF( mxRelations->count( aRelation.maId ) != 0, "oox",
  85                     "RelationsFragment::createFastChildContext - relation identifier exists already" );
  86                 mxRelations->emplace( aRelation.maId, aRelation );
  87             }
  88         }
  89         break;
  90         case PR_TOKEN( Relationships ):
  91             xRet = getFastContextHandler();
  92         break;
  93     }
  94     return xRet;
  95 }
  96
  97 } // namespace core
  98 } // namespace oox
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */