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