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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 INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
      21             : #define INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
      22             : 
      23             : #include <com/sun/star/view/XSelectionChangeListener.hpp>
      24             : #include <com/sun/star/view/XSelectionSupplier.hpp>
      25             : #include <cppuhelper/implbase1.hxx>
      26             : #include <comphelper/comphelperdllapi.h>
      27             : 
      28             : 
      29             : //= selection helper classes
      30             : 
      31             : 
      32             : 
      33             : namespace comphelper
      34             : {
      35             : 
      36             : 
      37             :     class OSelectionChangeMultiplexer;
      38             : 
      39             : 
      40             :     //= OSelectionChangeListener
      41             : 
      42             :     /// simple listener adapter for selections
      43             :     class COMPHELPER_DLLPUBLIC OSelectionChangeListener
      44             :     {
      45             :         friend class OSelectionChangeMultiplexer;
      46             : 
      47             :         OSelectionChangeMultiplexer*    m_pAdapter;
      48             :         ::osl::Mutex&                   m_rMutex;
      49             : 
      50             :     public:
      51           0 :         OSelectionChangeListener(::osl::Mutex& _rMutex)
      52           0 :             : m_pAdapter(NULL), m_rMutex(_rMutex) { }
      53             :         virtual ~OSelectionChangeListener();
      54             : 
      55             :         virtual void _selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException) = 0;
      56             :         virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource)
      57             :             throw (::com::sun::star::uno::RuntimeException, std::exception);
      58             : 
      59             :     protected:
      60             :         // pseudo-private. Making it private now could break compatibility
      61             :         void    setAdapter( OSelectionChangeMultiplexer* _pAdapter );
      62             :     };
      63             : 
      64             : 
      65             :     //= OSelectionChangeMultiplexer
      66             : 
      67             :     /// multiplexer for selection changes
      68             :     class COMPHELPER_DLLPUBLIC OSelectionChangeMultiplexer  :public cppu::WeakImplHelper1< ::com::sun::star::view::XSelectionChangeListener>
      69             :     {
      70             :         friend class OSelectionChangeListener;
      71             :          ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionSupplier>  m_xSet;
      72             :         OSelectionChangeListener*                   m_pListener;
      73             :         sal_Int32                                   m_nLockCount;
      74             :         bool                                    m_bListening        : 1;
      75             :         bool                                    m_bAutoSetRelease   : 1;
      76             : 
      77             :         OSelectionChangeMultiplexer(const OSelectionChangeMultiplexer&) SAL_DELETED_FUNCTION;
      78             :         OSelectionChangeMultiplexer& operator=(const OSelectionChangeMultiplexer&) SAL_DELETED_FUNCTION;
      79             :     protected:
      80             :         virtual ~OSelectionChangeMultiplexer();
      81             :     public:
      82             :         OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const  ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionSupplier>& _rxSet, bool _bAutoReleaseSet = true);
      83             : 
      84             :     // XEventListener
      85             :         virtual void SAL_CALL disposing( const  ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
      86             : 
      87             :     // XSelectionChangeListener
      88             :         virtual void SAL_CALL selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
      89             : 
      90             :         /// incremental lock
      91             :         void        lock();
      92             :         /// incremental unlock
      93             :         void        unlock();
      94             :         /// get the lock count
      95           0 :         sal_Int32   locked() const { return m_nLockCount; }
      96             : 
      97             :         void dispose();
      98             :     };
      99             : 
     100             : 
     101             : }   // namespace comphelper
     102             : 
     103             : 
     104             : #endif // INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
     105             : 
     106             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */