LibreOffice Module xmloff (master)  1
SinglePropertySetInfoCache.cxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
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19 
20 #include <cppuhelper/weakref.hxx>
22 #include <com/sun/star/beans/XPropertySet.hpp>
23 
24 using namespace ::com::sun::star::uno;
25 using ::com::sun::star::beans::XPropertySet;
26 using ::com::sun::star::beans::XPropertySetInfo;
27 
29  const Reference< XPropertySet >& rPropSet,
30  Reference< XPropertySetInfo >& rPropSetInfo )
31 {
32  if( !rPropSetInfo.is() )
33  rPropSetInfo = rPropSet->getPropertySetInfo();
34  Map::iterator aIter = map_.find( rPropSetInfo );
35  if( aIter != map_.end() )
36  {
37  return (*aIter).second;
38  }
39  bool bRet = rPropSetInfo->hasPropertyByName( sName );
40  // Check whether the property set info is destroyed if it is assigned to a
41  // weak reference only; if it is destroyed, then every instance of
42  // getPropertySetInfo returns a new object; Such property set infos must not
43  // be cached:
44  WeakReference < XPropertySetInfo > xWeakInfo( rPropSetInfo );
45  rPropSetInfo = nullptr;
46  rPropSetInfo = xWeakInfo;
47  if( rPropSetInfo.is() )
48  {
49  map_.emplace(rPropSetInfo, bRet);
50  }
51  return bRet;
52 }
53 
54 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
bool hasProperty(const css::uno::Reference< css::beans::XPropertySet > &rPropSet, css::uno::Reference< css::beans::XPropertySetInfo > &rPropSetInfo)