1 files changed, 89 insertions, 0 deletions
diff --git a/xmloff/source/style/SinglePropertySetInfoCache.cxx b/xmloff/source/style/SinglePropertySetInfoCache.cxx
new file mode 100644
index 000000000000..896c4e9fecef
--- /dev/null
+++ b/xmloff/source/style/SinglePropertySetInfoCache.cxx
@@ -0,0 +1,89 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_xmloff.hxx"
+#include <com/sun/star/lang/XTypeProvider.hpp>
+#include <cppuhelper/weakref.hxx>
+
+#ifndef _XMLOFF_SINGLEPROPERTYSETINFOCACHE_HXX
+#include <xmloff/SinglePropertySetInfoCache.hxx>
+#endif
+
+using namespace ::com::sun::star::uno;
+using ::com::sun::star::lang::XTypeProvider;
+using ::com::sun::star::beans::XPropertySet;
+using ::com::sun::star::beans::XPropertySetInfo;
+
+sal_Bool SinglePropertySetInfoCache::hasProperty(
+        const Reference< XPropertySet >& rPropSet,
+        Reference< XPropertySetInfo >& rPropSetInfo )
+{
+    if( !rPropSetInfo.is() )
+        rPropSetInfo = rPropSet->getPropertySetInfo();
+    sal_Bool bRet = sal_False, bValid = sal_False;
+    Reference < XTypeProvider > xTypeProv( rPropSet, UNO_QUERY );
+    Sequence< sal_Int8 > aImplId;
+    if( xTypeProv.is() )
+    {
+        aImplId = xTypeProv->getImplementationId();
+        if( aImplId.getLength() == 16 )
+        {
+            // The key must not be created outside this block, because it
+            // keeps a reference to the property set info.
+            PropertySetInfoKey aKey( rPropSetInfo, aImplId );
+            iterator aIter = find( aKey );
+            if( aIter != end() )
+            {
+                bRet = (*aIter).second;
+                bValid = sal_True;
+            }
+        }
+    }
+    if( !bValid )
+    {
+        bRet = rPropSetInfo->hasPropertyByName( sName );
+        if( xTypeProv.is() && aImplId.getLength() == 16 )
+        {
+            // Check whether the property set info is destroyed if it is
+            // assigned to a weak reference only. If it is destroyed, then
+            // every instance of getPropertySetInfo returns a new object.
+            // Such property set infos must not be cached.
+            WeakReference < XPropertySetInfo > xWeakInfo( rPropSetInfo );
+            rPropSetInfo = 0;
+            rPropSetInfo = xWeakInfo;
+            if( rPropSetInfo.is() )
+            {
+                PropertySetInfoKey aKey( rPropSetInfo, aImplId );
+                value_type aValue( aKey, bRet );
+                insert( aValue );
+            }
+        }
+    }
+
+    return bRet;
+}