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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 FORMS_SOURCE_INC_LISTENERCONTAINERS_HXX
      21             : #define FORMS_SOURCE_INC_LISTENERCONTAINERS_HXX
      22             : 
      23             : #include <com/sun/star/form/XResetListener.hpp>
      24             : #include <comphelper/listenernotification.hxx>
      25             : #include <cppuhelper/weak.hxx>
      26             : 
      27             : //........................................................................
      28             : namespace frm
      29             : {
      30             : //........................................................................
      31             : 
      32             :     //=====================================================================
      33             :     //= EventListeners
      34             :     //=====================================================================
      35             :     template < class LISTENER >
      36           2 :     class EventListeners : public ::comphelper::OListenerContainerBase< LISTENER, ::com::sun::star::lang::EventObject >
      37             :     {
      38             :     public:
      39             :         typedef LISTENER                            ListenerClass;
      40             :         typedef ::com::sun::star::lang::EventObject EventClass;
      41             :         typedef ::comphelper::OListenerContainerBase< ListenerClass, EventClass >
      42             :                                                     EventListeners_Base;
      43             : 
      44             :     private:
      45             :         ::cppu::OWeakObject&    m_rInstigator;
      46             : 
      47             :     protected:
      48             :         ::cppu::OWeakObject&    getInstigator() { return m_rInstigator; }
      49             : 
      50             :     protected:
      51           4 :         inline EventListeners( ::cppu::OWeakObject& _rInstigator, ::osl::Mutex& _rMutex )
      52             :             :EventListeners_Base( _rMutex )
      53           4 :             ,m_rInstigator( _rInstigator )
      54             :         {
      55           4 :         }
      56             : 
      57             :         // still waiting to be overwritten
      58             :         virtual bool    implTypedNotify(
      59             :                             const ::com::sun::star::uno::Reference< ListenerClass >& _rxListener,
      60             :                             const EventClass& _rEvent
      61             :                         )   SAL_THROW( ( ::com::sun::star::uno::Exception ) ) = 0;
      62             : 
      63             :     public:
      64           0 :         inline bool notify()
      65             :         {
      66           0 :             ::com::sun::star::lang::EventObject aEvent( m_rInstigator );
      67           0 :             return EventListeners_Base::notify( aEvent );
      68             :         }
      69             : 
      70           3 :         inline void disposing()
      71             :         {
      72           3 :             ::com::sun::star::lang::EventObject aEvent( m_rInstigator );
      73           3 :             EventListeners_Base::disposing( aEvent );
      74           3 :         }
      75             :     protected:
      76             :         using EventListeners_Base::notify;
      77             :         using EventListeners_Base::disposing;
      78             :     };
      79             : 
      80             :     //=====================================================================
      81             :     //= ResetListeners
      82             :     //=====================================================================
      83             :     typedef EventListeners  <   ::com::sun::star::form::XResetListener
      84             :                             >   ResetListeners_Base;
      85           2 :     class ResetListeners : public ResetListeners_Base
      86             :     {
      87             :     private:
      88             :         enum NotificationType
      89             :         {
      90             :             eApproval,
      91             :             eFinal
      92             :         };
      93             :         NotificationType        m_eCurrentNotificationType;
      94             : 
      95             :     public:
      96           4 :         inline ResetListeners( ::cppu::OWeakObject& _rInstigator, ::osl::Mutex& _rMutex )
      97             :             :ResetListeners_Base( _rInstigator, _rMutex )
      98           4 :             ,m_eCurrentNotificationType( eApproval )
      99             :         {
     100           4 :         }
     101             : 
     102             :         /** see whether all our listeners approve the reset
     103             :         */
     104           0 :         sal_Bool approveReset()
     105             :         {
     106           0 :             m_eCurrentNotificationType = eApproval;
     107           0 :             return notify();
     108             :         }
     109             : 
     110             :         /** tell all our listeners that the reset happened
     111             :         */
     112           0 :         void resetted()
     113             :         {
     114           0 :             m_eCurrentNotificationType = eFinal;
     115           0 :             notify();
     116           0 :         }
     117             : 
     118             :     protected:
     119             :         virtual bool    implTypedNotify(
     120             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::form::XResetListener >& _rxListener,
     121             :                             const ::com::sun::star::lang::EventObject& _rEvent
     122             :                         )   SAL_THROW( ( ::com::sun::star::uno::Exception ) );
     123             :     };
     124             : 
     125             : //........................................................................
     126             : } // namespace frm
     127             : //........................................................................
     128             : 
     129             : #endif // FORMS_SOURCE_INC_LISTENERCONTAINERS_HXX
     130             : 
     131             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */