forms/source/inc/listenercontainers.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   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_FORMS_SOURCE_INC_LISTENERCONTAINERS_HXX
  21 #define INCLUDED_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     template < class LISTENER >
  32     class EventListeners : public ::comphelper::OListenerContainerBase< LISTENER, css::lang::EventObject >
  33     {
  34     public:
  35         typedef ::comphelper::OListenerContainerBase< LISTENER, css::lang::EventObject >
  36                                                     EventListeners_Base;
  37
  38     private:
  39         ::cppu::OWeakObject&    m_rInstigator;
  40
  41     protected:
  42         inline EventListeners( ::cppu::OWeakObject& _rInstigator, ::osl::Mutex& _rMutex )
  43             :EventListeners_Base( _rMutex )
  44             ,m_rInstigator( _rInstigator )
  45         {
  46         }
  47
  48     public:
  49         inline bool notify()
  50         {
  51             css::lang::EventObject aEvent( m_rInstigator );
  52             return EventListeners_Base::notify( aEvent );
  53         }
  54
  55         inline void disposing()
  56         {
  57             css::lang::EventObject aEvent( m_rInstigator );
  58             EventListeners_Base::disposing( aEvent );
  59         }
  60     protected:
  61         using EventListeners_Base::notify;
  62         using EventListeners_Base::disposing;
  63     };
  64
  65     typedef EventListeners  <   css::form::XResetListener
  66                             >   ResetListeners_Base;
  67     class ResetListeners : public ResetListeners_Base
  68     {
  69     private:
  70         enum NotificationType
  71         {
  72             eApproval,
  73             eFinal
  74         };
  75         NotificationType        m_eCurrentNotificationType;
  76
  77     public:
  78         inline ResetListeners( ::cppu::OWeakObject& _rInstigator, ::osl::Mutex& _rMutex )
  79             :ResetListeners_Base( _rInstigator, _rMutex )
  80             ,m_eCurrentNotificationType( eApproval )
  81         {
  82         }
  83
  84         /** see whether all our listeners approve the reset
  85         */
  86         bool approveReset()
  87         {
  88             m_eCurrentNotificationType = eApproval;
  89             return notify();
  90         }
  91
  92         /** tell all our listeners that the reset happened
  93         */
  94         void resetted()
  95         {
  96             m_eCurrentNotificationType = eFinal;
  97             notify();
  98         }
  99
 100     protected:
 101         virtual bool    implTypedNotify(
 102                             const css::uno::Reference< css::form::XResetListener >& _rxListener,
 103                             const css::lang::EventObject& _rEvent
 104                         ) override;
 105     };
 106
 107
 108 } // namespace frm
 109
 110
 111 #endif // INCLUDED_FORMS_SOURCE_INC_LISTENERCONTAINERS_HXX
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */