forms/source/richtext/featuredispatcher.cxx

   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 #include "featuredispatcher.hxx"
  21
  22 //........................................................................
  23 namespace frm
  24 {
  25 //........................................................................
  26
  27     using namespace ::com::sun::star::uno;
  28     using namespace ::com::sun::star::frame;
  29     using namespace ::com::sun::star::lang;
  30     using namespace ::com::sun::star::util;
  31
  32     //====================================================================
  33     //= ORichTextFeatureDispatcher
  34     //====================================================================
  35     //--------------------------------------------------------------------
  36     ORichTextFeatureDispatcher::ORichTextFeatureDispatcher( EditView& _rView, const URL&  _rURL )
  37         :m_aFeatureURL( _rURL )
  38         ,m_aStatusListeners( m_aMutex )
  39         ,m_pEditView( &_rView )
  40         ,m_bDisposed( false )
  41     {
  42     }
  43
  44     //--------------------------------------------------------------------
  45     ORichTextFeatureDispatcher::~ORichTextFeatureDispatcher( )
  46     {
  47         if ( !m_bDisposed )
  48         {
  49             acquire();
  50             dispose();
  51         }
  52     }
  53
  54     //--------------------------------------------------------------------
  55     void ORichTextFeatureDispatcher::dispose()
  56     {
  57         EventObject aEvent( *this );
  58         m_aStatusListeners.disposeAndClear( aEvent );
  59
  60         ::osl::ClearableMutexGuard aGuard( m_aMutex );
  61         m_bDisposed = true;
  62         disposing( aGuard );
  63     }
  64
  65     //--------------------------------------------------------------------
  66     void ORichTextFeatureDispatcher::disposing( ::osl::ClearableMutexGuard& /*_rClearBeforeNotify*/ )
  67     {
  68         m_pEditView = NULL;
  69     }
  70
  71     //--------------------------------------------------------------------
  72     void SAL_CALL ORichTextFeatureDispatcher::addStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _rURL ) throw (RuntimeException)
  73     {
  74         OSL_ENSURE( !m_bDisposed, "ORichTextFeatureDispatcher::addStatusListener: already disposed!" );
  75         if ( m_bDisposed )
  76             throw DisposedException();
  77
  78         OSL_ENSURE( _rURL.Complete == getFeatureURL().Complete, "ORichTextFeatureDispatcher::addStatusListener: invalid URL!" );
  79         if ( _rURL.Complete == getFeatureURL().Complete )
  80             if ( _rxControl.is() )
  81             {
  82                 m_aStatusListeners.addInterface( _rxControl );
  83                 newStatusListener( _rxControl );
  84             }
  85     }
  86
  87     //--------------------------------------------------------------------
  88     void SAL_CALL ORichTextFeatureDispatcher::removeStatusListener( const Reference< XStatusListener >& _rxControl, const URL& /*_rURL*/ ) throw (RuntimeException)
  89     {
  90         m_aStatusListeners.removeInterface( _rxControl );
  91     }
  92
  93     //--------------------------------------------------------------------
  94     void ORichTextFeatureDispatcher::invalidate()
  95     {
  96         invalidateFeatureState_Broadcast();
  97     }
  98
  99     //--------------------------------------------------------------------
 100     FeatureStateEvent ORichTextFeatureDispatcher::buildStatusEvent() const
 101     {
 102         FeatureStateEvent aEvent;
 103         aEvent.IsEnabled = sal_False;
 104         aEvent.Source = *const_cast< ORichTextFeatureDispatcher* >( this );
 105         aEvent.FeatureURL = getFeatureURL();
 106         aEvent.Requery = sal_False;
 107         return aEvent;
 108     }
 109
 110     //--------------------------------------------------------------------
 111     void ORichTextFeatureDispatcher::invalidateFeatureState_Broadcast()
 112     {
 113         FeatureStateEvent aEvent( buildStatusEvent() );
 114         ::cppu::OInterfaceIteratorHelper aIter( getStatusListeners() );
 115         while ( aIter.hasMoreElements() )
 116             doNotify( static_cast< XStatusListener* >( aIter.next() ), aEvent );
 117     }
 118
 119     //--------------------------------------------------------------------
 120     void ORichTextFeatureDispatcher::newStatusListener( const Reference< XStatusListener >& _rxListener )
 121     {
 122         doNotify( _rxListener, buildStatusEvent() );
 123     }
 124
 125     //--------------------------------------------------------------------
 126     void ORichTextFeatureDispatcher::doNotify( const Reference< XStatusListener >& _rxListener, const FeatureStateEvent& _rEvent ) const SAL_THROW(())
 127     {
 128         OSL_PRECOND( _rxListener.is(), "ORichTextFeatureDispatcher::doNotify: invalid listener!" );
 129         if ( _rxListener.is() )
 130         {
 131             try
 132             {
 133                 _rxListener->statusChanged( _rEvent );
 134             }
 135             catch( const Exception& )
 136             {
 137                 OSL_FAIL( "ORichTextFeatureDispatcher::doNotify: caught an exception!" );
 138             }
 139         }
 140     }
 141
 142 //........................................................................
 143 }   // namespace frm
 144 //........................................................................
 145
 146 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */