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 // 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 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