Line data    Source code

       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 <com/sun/star/lang/XTypeProvider.hpp>
      21             : #include <cppuhelper/weakref.hxx>
      22             : #include <xmloff/SinglePropertySetInfoCache.hxx>
      23             : 
      24             : using namespace ::com::sun::star::uno;
      25             : using ::com::sun::star::lang::XTypeProvider;
      26             : using ::com::sun::star::beans::XPropertySet;
      27             : using ::com::sun::star::beans::XPropertySetInfo;
      28             : 
      29           0 : sal_Bool SinglePropertySetInfoCache::hasProperty(
      30             :         const Reference< XPropertySet >& rPropSet,
      31             :         Reference< XPropertySetInfo >& rPropSetInfo )
      32             : {
      33           0 :     if( !rPropSetInfo.is() )
      34           0 :         rPropSetInfo = rPropSet->getPropertySetInfo();
      35           0 :     sal_Bool bRet = sal_False, bValid = sal_False;
      36           0 :     Reference < XTypeProvider > xTypeProv( rPropSet, UNO_QUERY );
      37           0 :     Sequence< sal_Int8 > aImplId;
      38           0 :     if( xTypeProv.is() )
      39             :     {
      40           0 :         aImplId = xTypeProv->getImplementationId();
      41           0 :         if( aImplId.getLength() == 16 )
      42             :         {
      43             :             // The key must not be created outside this block, because it
      44             :             // keeps a reference to the property set info.
      45           0 :             PropertySetInfoKey aKey( rPropSetInfo, aImplId );
      46           0 :             iterator aIter = find( aKey );
      47           0 :             if( aIter != end() )
      48             :             {
      49           0 :                 bRet = (*aIter).second;
      50           0 :                 bValid = sal_True;
      51           0 :             }
      52             :         }
      53             :     }
      54           0 :     if( !bValid )
      55             :     {
      56           0 :         bRet = rPropSetInfo->hasPropertyByName( sName );
      57           0 :         if( xTypeProv.is() && aImplId.getLength() == 16 )
      58             :         {
      59             :             // Check whether the property set info is destroyed if it is
      60             :             // assigned to a weak reference only. If it is destroyed, then
      61             :             // every instance of getPropertySetInfo returns a new object.
      62             :             // Such property set infos must not be cached.
      63           0 :             WeakReference < XPropertySetInfo > xWeakInfo( rPropSetInfo );
      64           0 :             rPropSetInfo = 0;
      65           0 :             rPropSetInfo = xWeakInfo;
      66           0 :             if( rPropSetInfo.is() )
      67             :             {
      68           0 :                 PropertySetInfoKey aKey( rPropSetInfo, aImplId );
      69           0 :                 value_type aValue( aKey, bRet );
      70           0 :                 insert( aValue );
      71           0 :             }
      72             :         }
      73             :     }
      74             : 
      75           0 :     return bRet;
      76             : }
      77             : 
      78             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */