use rtl::Reference in bib::OComponentListener

rather than manual acquire/release

Change-Id: Ib4b52fb4a85223f974e9905bc3d02eb839150030

extensions/source/bibliography/loadlisteneradapter.cxx

@@ -32,31 +32,16 @@ namespace bib
 
     OComponentListener::~OComponentListener()
     {
-        {
-            ::osl::MutexGuard aGuard( m_rMutex );
-            if ( m_pAdapter )
-                m_pAdapter->dispose();
-        }
+        ::osl::MutexGuard aGuard( m_rMutex );
+        if ( m_xAdapter.is() )
+            m_xAdapter->dispose();
     }
 
 
     void OComponentListener::setAdapter( OComponentAdapterBase* pAdapter )
     {
-        {
-            ::osl::MutexGuard aGuard( m_rMutex );
-            if ( m_pAdapter )
-            {
-                m_pAdapter->release();
-                m_pAdapter = nullptr;
-            }
-        }
-
-        if ( pAdapter )
-        {
-            ::osl::MutexGuard aGuard( m_rMutex );
-            m_pAdapter = pAdapter;
-            m_pAdapter->acquire();
-        }
+        ::osl::MutexGuard aGuard( m_rMutex );
+        m_xAdapter = pAdapter;
     }
 
     OComponentAdapterBase::OComponentAdapterBase( const Reference< XComponent >& _rxComp )

extensions/source/bibliography/loadlisteneradapter.hxx

@@ -24,6 +24,7 @@
 #include <com/sun/star/lang/XComponent.hpp>
 #include <cppuhelper/implbase.hxx>
 #include <com/sun/star/form/XLoadable.hpp>
+#include <rtl/ref.hxx>
 
 
 namespace bib
@@ -37,12 +38,11 @@ namespace bib
         friend class OComponentAdapterBase;
 
     private:
-        OComponentAdapterBase*  m_pAdapter;
-        ::osl::Mutex&           m_rMutex;
+        rtl::Reference<OComponentAdapterBase>  m_xAdapter;
+        ::osl::Mutex&                          m_rMutex;
     protected:
         explicit OComponentListener( ::osl::Mutex& _rMutex )
-            :m_pAdapter( nullptr )
-            ,m_rMutex( _rMutex )
+            :m_rMutex( _rMutex )
         {
         }