1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include "oox/core/relationshandler.hxx"
25
26 #include <rtl/ustrbuf.hxx>
27 #include "oox/helper/attributelist.hxx"
28
29 namespace oox {
30 namespace core {
31
32 // ============================================================================
33
34 using namespace ::com::sun::star::uno;
35 using namespace ::com::sun::star::xml::sax;
36
37 using ::rtl::OUString;
38 using ::rtl::OUStringBuffer;
39
40 // ============================================================================
41
42 namespace {
43
44 /* Build path to relations file from passed fragment path, e.g.:
45 'path/path/file.xml' -> 'path/path/_rels/file.xml.rels'
46 'file.xml' -> '_rels/file.xml.rels'
47 '' -> '_rels/.rels'
48 */
lclGetRelationsPath(const OUString & rFragmentPath)49 OUString lclGetRelationsPath( const OUString& rFragmentPath )
50 {
51 sal_Int32 nPathLen = ::std::max< sal_Int32 >( rFragmentPath.lastIndexOf( '/' ) + 1, 0 );
52 return
53 OUStringBuffer( rFragmentPath.copy( 0, nPathLen ) ). // file path including slash
54 appendAscii( "_rels/" ). // additional '_rels/' path
55 append( rFragmentPath.copy( nPathLen ) ). // file name after path
56 appendAscii( ".rels" ). // '.rels' suffix
57 makeStringAndClear();
58 }
59
60 } // namespace
61
62 // ============================================================================
63
RelationsFragment(XmlFilterBase & rFilter,RelationsRef xRelations)64 RelationsFragment::RelationsFragment( XmlFilterBase& rFilter, RelationsRef xRelations ) :
65 FragmentHandler( rFilter, lclGetRelationsPath( xRelations->getFragmentPath() ), xRelations ),
66 mxRelations( xRelations )
67 {
68 }
69
createFastChildContext(sal_Int32 nElement,const Reference<XFastAttributeList> & rxAttribs)70 Reference< XFastContextHandler > RelationsFragment::createFastChildContext(
71 sal_Int32 nElement, const Reference< XFastAttributeList >& rxAttribs ) throw (SAXException, RuntimeException)
72 {
73 Reference< XFastContextHandler > xRet;
74 AttributeList aAttribs( rxAttribs );
75 switch( nElement )
76 {
77 case PR_TOKEN( Relationship ):
78 {
79 Relation aRelation;
80 aRelation.maId = aAttribs.getString( XML_Id, OUString() );
81 aRelation.maType = aAttribs.getString( XML_Type, OUString() );
82 aRelation.maTarget = aAttribs.getString( XML_Target, OUString() );
83 if( (aRelation.maId.getLength() > 0) && (aRelation.maType.getLength() > 0) && (aRelation.maTarget.getLength() > 0) )
84 {
85 sal_Int32 nTargetMode = aAttribs.getToken( XML_TargetMode, XML_Internal );
86 OSL_ENSURE( (nTargetMode == XML_Internal) || (nTargetMode == XML_External),
87 "RelationsFragment::createFastChildContext - unexpected target mode, assuming external" );
88 aRelation.mbExternal = nTargetMode != XML_Internal;
89
90 OSL_ENSURE( mxRelations->count( aRelation.maId ) == 0,
91 "RelationsFragment::createFastChildContext - relation identifier exists already" );
92 mxRelations->insert( Relations::value_type( aRelation.maId, aRelation ) );
93 }
94 }
95 break;
96 case PR_TOKEN( Relationships ):
97 xRet = getFastContextHandler();
98 break;
99 }
100 return xRet;
101 }
102
103 // ============================================================================
104
105 } // namespace core
106 } // namespace oox
107