1 files changed, 106 insertions, 0 deletions
diff --git a/include/comphelper/containermultiplexer.hxx b/include/comphelper/containermultiplexer.hxx
new file mode 100644
index 000000000000..725265e493c6
--- /dev/null
+++ b/include/comphelper/containermultiplexer.hxx
@@ -0,0 +1,106 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef _COMPHELPER_CONTAINERMULTIPLEXER_HXX_
+#define _COMPHELPER_CONTAINERMULTIPLEXER_HXX_
+
+#include <com/sun/star/container/XContainer.hpp>
+#include <cppuhelper/implbase1.hxx>
+#include <osl/mutex.hxx>
+#include "comphelper/comphelperdllapi.h"
+
+//.........................................................................
+namespace comphelper
+{
+//.........................................................................
+
+    class OContainerListenerAdapter;
+    //=====================================================================
+    //= OContainerListener
+    //=====================================================================
+    /** a non-UNO container listener
+        <p>Useful if you have a non-refcountable class which should act as container listener.<br/>
+        In this case, derive this class from OContainerListener, and create an adapter
+        <type>OContainerListenerAdapter</type> which multiplexes the changes.</p>
+    */
+    class COMPHELPER_DLLPUBLIC OContainerListener
+    {
+        friend class OContainerListenerAdapter;
+    protected:
+        OContainerListenerAdapter*  m_pAdapter;
+        ::osl::Mutex&               m_rMutex;
+
+    public:
+        OContainerListener(::osl::Mutex& _rMutex);
+        virtual ~OContainerListener();
+
+        virtual void _elementInserted( const ::com::sun::star::container::ContainerEvent& _rEvent ) throw(::com::sun::star::uno::RuntimeException);
+        virtual void _elementRemoved( const ::com::sun::star::container::ContainerEvent& _Event ) throw(::com::sun::star::uno::RuntimeException);
+        virtual void _elementReplaced( const ::com::sun::star::container::ContainerEvent& _rEvent ) throw(::com::sun::star::uno::RuntimeException);
+        virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource) throw( ::com::sun::star::uno::RuntimeException);
+
+    protected:
+        void setAdapter(OContainerListenerAdapter* _pAdapter);
+    };
+
+    //=====================================================================
+    //= OContainerListenerAdapter
+    //=====================================================================
+    class COMPHELPER_DLLPUBLIC OContainerListenerAdapter
+            :public cppu::WeakImplHelper1< ::com::sun::star::container::XContainerListener >
+    {
+        friend class OContainerListener;
+
+    protected:
+        ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >
+                                m_xContainer;
+        OContainerListener*     m_pListener;
+        sal_Int32               m_nLockCount;
+
+        virtual ~OContainerListenerAdapter();
+
+    public:
+        OContainerListenerAdapter(OContainerListener* _pListener,
+            const  ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >& _rxContainer);
+
+        // XEventListener
+        virtual void SAL_CALL disposing( const  ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException);
+
+        // XContainerListener
+        virtual void SAL_CALL elementInserted( const ::com::sun::star::container::ContainerEvent& Event ) throw(::com::sun::star::uno::RuntimeException);
+        virtual void SAL_CALL elementRemoved( const ::com::sun::star::container::ContainerEvent& Event ) throw(::com::sun::star::uno::RuntimeException);
+        virtual void SAL_CALL elementReplaced( const ::com::sun::star::container::ContainerEvent& Event ) throw(::com::sun::star::uno::RuntimeException);
+
+        // locking the multiplexer
+        sal_Int32   locked() const { return m_nLockCount; }
+
+        /// dispose the object. No multiplexing anymore
+        void        dispose();
+
+        const ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >&
+                    getContainer() const { return m_xContainer; }
+    };
+
+//.........................................................................
+}   // namespace dbaui
+//.........................................................................
+
+#endif // _COMPHELPER_CONTAINERMULTIPLEXER_HXX_
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */