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
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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 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_xmloff.hxx"
26 #include <com/sun/star/lang/XTypeProvider.hpp>
27 #include <cppuhelper/weakref.hxx>
28
29 #ifndef _XMLOFF_SINGLEPROPERTYSETINFOCACHE_HXX
30 #include <xmloff/SinglePropertySetInfoCache.hxx>
31 #endif
32
33 using namespace ::com::sun::star::uno;
34 using ::com::sun::star::lang::XTypeProvider;
35 using ::com::sun::star::beans::XPropertySet;
36 using ::com::sun::star::beans::XPropertySetInfo;
37
hasProperty(const Reference<XPropertySet> & rPropSet,Reference<XPropertySetInfo> & rPropSetInfo)38 sal_Bool SinglePropertySetInfoCache::hasProperty(
39 const Reference< XPropertySet >& rPropSet,
40 Reference< XPropertySetInfo >& rPropSetInfo )
41 {
42 if( !rPropSetInfo.is() )
43 rPropSetInfo = rPropSet->getPropertySetInfo();
44 sal_Bool bRet = sal_False, bValid = sal_False;
45 Reference < XTypeProvider > xTypeProv( rPropSet, UNO_QUERY );
46 Sequence< sal_Int8 > aImplId;
47 if( xTypeProv.is() )
48 {
49 aImplId = xTypeProv->getImplementationId();
50 if( aImplId.getLength() == 16 )
51 {
52 // The key must not be created outside this block, because it
53 // keeps a reference to the property set info.
54 PropertySetInfoKey aKey( rPropSetInfo, aImplId );
55 iterator aIter = find( aKey );
56 if( aIter != end() )
57 {
58 bRet = (*aIter).second;
59 bValid = sal_True;
60 }
61 }
62 }
63 if( !bValid )
64 {
65 bRet = rPropSetInfo->hasPropertyByName( sName );
66 if( xTypeProv.is() && aImplId.getLength() == 16 )
67 {
68 // Check whether the property set info is destroyed if it is
69 // assigned to a weak reference only. If it is destroyed, then
70 // every instance of getPropertySetInfo returns a new object.
71 // Such property set infos must not be cached.
72 WeakReference < XPropertySetInfo > xWeakInfo( rPropSetInfo );
73 rPropSetInfo = 0;
74 rPropSetInfo = xWeakInfo;
75 if( rPropSetInfo.is() )
76 {
77 PropertySetInfoKey aKey( rPropSetInfo, aImplId );
78 value_type aValue( aKey, bRet );
79 insert( aValue );
80 }
81 }
82 }
83
84 return bRet;
85 }
86