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 "oox/helper/attributelist.hxx"
  24
  25 namespace oox {
  26 namespace core {
  27
  28 // ============================================================================
  29
  30 using namespace ::com::sun::star::uno;
  31 using namespace ::com::sun::star::xml::sax;
  32
  33
  34 // ============================================================================
  35
  36 namespace {
  37
  38 /*  Build path to relations file from passed fragment path, e.g.:
  39         'path/path/file.xml'    -> 'path/path/_rels/file.xml.rels'
  40         'file.xml'              -> '_rels/file.xml.rels'
  41         ''                      -> '_rels/.rels'
  42  */
  43 OUString lclGetRelationsPath( const OUString& rFragmentPath )
  44 {
  45     sal_Int32 nPathLen = ::std::max< sal_Int32 >( rFragmentPath.lastIndexOf( '/' ) + 1, 0 );
  46     return
  47         OUStringBuffer( rFragmentPath.copy( 0, nPathLen ) ).    // file path including slash
  48         appendAscii( "_rels/" ).                                // additional '_rels/' path
  49         append( rFragmentPath.copy( nPathLen ) ).               // file name after path
  50         appendAscii( ".rels" ).                                 // '.rels' suffix
  51         makeStringAndClear();
  52 }
  53
  54 } // namespace
  55
  56 // ============================================================================
  57
  58 RelationsFragment::RelationsFragment( XmlFilterBase& rFilter, 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 ) throw (SAXException, RuntimeException)
  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                 OSL_ENSURE( (nTargetMode == XML_Internal) || (nTargetMode == XML_External),
  81                     "RelationsFragment::createFastChildContext - unexpected target mode, assuming external" );
  82                 aRelation.mbExternal = nTargetMode != XML_Internal;
  83
  84                 OSL_ENSURE( mxRelations->count( aRelation.maId ) == 0,
  85                     "RelationsFragment::createFastChildContext - relation identifier exists already" );
  86                 mxRelations->insert( Relations::value_type( aRelation.maId, aRelation ) );
  87             }
  88         }
  89         break;
  90         case PR_TOKEN( Relationships ):
  91             xRet = getFastContextHandler();
  92         break;
  93     }
  94     return xRet;
  95 }
  96
  97 // ============================================================================
  98
  99 } // namespace core
 100 } // namespace oox
 101
 102 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */