oox/source/core/relations.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/relations.hxx"
  21
  22 #include <rtl/ustrbuf.hxx>
  23 #include "oox/helper/helper.hxx"
  24
  25 namespace oox {
  26 namespace core {
  27
  28 // ============================================================================
  29
  30
  31 // ============================================================================
  32
  33 namespace {
  34
  35 OUString lclRemoveFileName( const OUString& rPath )
  36 {
  37     return rPath.copy( 0, ::std::max< sal_Int32 >( rPath.lastIndexOf( '/' ), 0 ) );
  38 }
  39
  40 OUString lclAppendFileName( const OUString& rPath, const OUString& rFileName )
  41 {
  42     return rPath.isEmpty() ? rFileName :
  43         OUStringBuffer( rPath ).append( '/' ).append( rFileName ).makeStringAndClear();
  44 }
  45
  46 } // namespace
  47
  48 // ============================================================================
  49
  50 Relations::Relations( const OUString& rFragmentPath ) :
  51     maFragmentPath( rFragmentPath )
  52 {
  53 }
  54
  55 const Relation* Relations::getRelationFromRelId( const OUString& rId ) const
  56 {
  57     const_iterator aIt = find( rId );
  58     return (aIt == end()) ? 0 : &aIt->second;
  59 }
  60
  61 const Relation* Relations::getRelationFromFirstType( const OUString& rType ) const
  62 {
  63     for( const_iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
  64         if( aIt->second.maType.equalsIgnoreAsciiCase( rType ) )
  65             return &aIt->second;
  66     return 0;
  67 }
  68
  69 RelationsRef Relations::getRelationsFromType( const OUString& rType ) const
  70 {
  71     RelationsRef xRelations( new Relations( maFragmentPath ) );
  72     for( const_iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
  73         if( aIt->second.maType.equalsIgnoreAsciiCase( rType ) )
  74             (*xRelations)[ aIt->first ] = aIt->second;
  75     return xRelations;
  76 }
  77
  78 OUString Relations::getExternalTargetFromRelId( const OUString& rRelId ) const
  79 {
  80     const Relation* pRelation = getRelationFromRelId( rRelId );
  81     return (pRelation && pRelation->mbExternal) ? pRelation->maTarget : OUString();
  82 }
  83
  84 OUString Relations::getInternalTargetFromRelId( const OUString& rRelId ) const
  85 {
  86     const Relation* pRelation = getRelationFromRelId( rRelId );
  87     return (pRelation && !pRelation->mbExternal) ? pRelation->maTarget : OUString();
  88 }
  89
  90 OUString Relations::getFragmentPathFromRelation( const Relation& rRelation ) const
  91 {
  92     // no target, no fragment path
  93     if( rRelation.mbExternal || rRelation.maTarget.isEmpty() )
  94         return OUString();
  95
  96     // absolute target: return it without leading slash (#i100978)
  97     if( rRelation.maTarget[ 0 ] == '/' )
  98         return rRelation.maTarget.copy( 1 );
  99
 100     // empty fragment path: return target
 101     if( maFragmentPath.isEmpty() )
 102         return rRelation.maTarget;
 103
 104     // resolve relative target path according to base path
 105     OUString aPath = lclRemoveFileName( maFragmentPath );
 106     sal_Int32 nStartPos = 0;
 107     while( nStartPos < rRelation.maTarget.getLength() )
 108     {
 109         sal_Int32 nSepPos = rRelation.maTarget.indexOf( '/', nStartPos );
 110         if( nSepPos < 0 ) nSepPos = rRelation.maTarget.getLength();
 111         // append next directory name from aTarget to aPath, or remove last directory on '../'
 112         if( (nStartPos + 2 == nSepPos) && (rRelation.maTarget[ nStartPos ] == '.') && (rRelation.maTarget[ nStartPos + 1 ] == '.') )
 113             aPath = lclRemoveFileName( aPath );
 114         else
 115             aPath = lclAppendFileName( aPath, rRelation.maTarget.copy( nStartPos, nSepPos - nStartPos ) );
 116         // move nStartPos to next directory name
 117         nStartPos = nSepPos + 1;
 118     }
 119
 120     return aPath;
 121 }
 122
 123 OUString Relations::getFragmentPathFromRelId( const OUString& rRelId ) const
 124 {
 125     const Relation* pRelation = getRelationFromRelId( rRelId );
 126     return pRelation ? getFragmentPathFromRelation( *pRelation ) : OUString();
 127 }
 128
 129 OUString Relations::getFragmentPathFromFirstType( const OUString& rType ) const
 130 {
 131     const Relation* pRelation = getRelationFromFirstType( rType );
 132     return pRelation ? getFragmentPathFromRelation( *pRelation ) : OUString();
 133 }
 134
 135 // ============================================================================
 136
 137 } // namespace core
 138 } // namespace oox
 139
 140 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */