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       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             : #ifndef _COMPHELPER_PROPERTY_MULTIPLEX_HXX_
      21             : #define _COMPHELPER_PROPERTY_MULTIPLEX_HXX_
      22             : 
      23             : #include <comphelper/propstate.hxx>
      24             : #include <cppuhelper/implbase1.hxx>
      25             : #include "comphelper/comphelperdllapi.h"
      26             : 
      27             : //=========================================================================
      28             : //= property helper classes
      29             : //=========================================================================
      30             : 
      31             : //.........................................................................
      32             : namespace comphelper
      33             : {
      34             : //.........................................................................
      35             : 
      36             :     class OPropertyChangeMultiplexer;
      37             : 
      38             :     //==================================================================
      39             :     //= OPropertyChangeListener
      40             :     //==================================================================
      41             :     /// simple listener adapter for property sets
      42             :     class COMPHELPER_DLLPUBLIC OPropertyChangeListener
      43             :     {
      44             :         friend class OPropertyChangeMultiplexer;
      45             : 
      46             :         OPropertyChangeMultiplexer* m_pAdapter;
      47             :         ::osl::Mutex&               m_rMutex;
      48             : 
      49             :     public:
      50          45 :         OPropertyChangeListener(::osl::Mutex& _rMutex)
      51          45 :             : m_pAdapter(NULL), m_rMutex(_rMutex) { }
      52             :         virtual ~OPropertyChangeListener();
      53             : 
      54             :         virtual void _propertyChanged(const ::com::sun::star::beans::PropertyChangeEvent& _rEvent) throw( ::com::sun::star::uno::RuntimeException) = 0;
      55             :         virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource) throw( ::com::sun::star::uno::RuntimeException);
      56             : 
      57             :     protected:
      58             :         /** If the derivee also owns the mutex which we know as reference, then call this within your
      59             :             derivee's dtor.
      60             :         */
      61             :         void    disposeAdapter();
      62             : 
      63             :         // pseudo-private. Making it private now could break compatibility
      64             :         void    setAdapter( OPropertyChangeMultiplexer* _pAdapter );
      65             :     };
      66             : 
      67             :     //==================================================================
      68             :     //= OPropertyChangeMultiplexer
      69             :     //==================================================================
      70             :     /// multiplexer for property changes
      71             :     class COMPHELPER_DLLPUBLIC OPropertyChangeMultiplexer   :public cppu::WeakImplHelper1< ::com::sun::star::beans::XPropertyChangeListener>
      72             :     {
      73             :         friend class OPropertyChangeListener;
      74             :          ::com::sun::star::uno::Sequence< ::rtl::OUString >     m_aProperties;
      75             :          ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet>   m_xSet;
      76             :         OPropertyChangeListener*                    m_pListener;
      77             :         sal_Int32                                   m_nLockCount;
      78             :         sal_Bool                                    m_bListening        : 1;
      79             :         sal_Bool                                    m_bAutoSetRelease   : 1;
      80             : 
      81             : 
      82             :         virtual ~OPropertyChangeMultiplexer();
      83             :     public:
      84             :         OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const  ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet>& _rxSet, sal_Bool _bAutoReleaseSet = sal_True);
      85             : 
      86             :     // XEventListener
      87             :         virtual void SAL_CALL disposing( const  ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException);
      88             : 
      89             :     // XPropertyChangeListener
      90             :         virtual void SAL_CALL propertyChange( const  ::com::sun::star::beans::PropertyChangeEvent& evt ) throw( ::com::sun::star::uno::RuntimeException);
      91             : 
      92             :         /// incremental lock
      93             :         void        lock();
      94             :         /// incremental unlock
      95             :         void        unlock();
      96             :         /// get the lock count
      97          47 :         sal_Int32   locked() const { return m_nLockCount; }
      98             : 
      99             :         void addProperty(const ::rtl::OUString& aPropertyName);
     100             :         void dispose();
     101             :     };
     102             : 
     103             : //.........................................................................
     104             : }   // namespace comphelper
     105             : //.........................................................................
     106             : 
     107             : #endif // _COMPHELPER_PROPERTY_MULTIPLEX_HXX_
     108             : 
     109             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */