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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"
#include <tools/debug.hxx>
#include <svl/hint.hxx>
#include <svl/brdcst.hxx>
SV_DECL_PTRARR( SfxBroadcasterArr_Impl, SfxBroadcaster*, 0, 2 )
#define _SFX_LSTNER_CXX
#include <svl/lstner.hxx>
//====================================================================
DBG_NAME(SfxListener)
TYPEINIT0(SfxListener);
//====================================================================
// simple ctor of class SfxListener
SfxListener::SfxListener()
{
DBG_CTOR(SfxListener, 0);
}
//--------------------------------------------------------------------
// copy ctor of class SfxListener
SfxListener::SfxListener( const SfxListener &rListener )
{
DBG_CTOR(SfxListener, 0);
for ( USHORT n = 0; n < rListener.aBCs.Count(); ++n )
StartListening( *rListener.aBCs[n] );
}
//--------------------------------------------------------------------
// unregisteres the SfxListener from its SfxBroadcasters
SfxListener::~SfxListener()
{
DBG_DTOR(SfxListener, 0);
// unregister at all remainding broadcasters
for ( USHORT nPos = 0; nPos < aBCs.Count(); ++nPos )
{
SfxBroadcaster *pBC = aBCs[nPos];
pBC->RemoveListener(*this);
}
}
//--------------------------------------------------------------------
// unregisteres at a specific SfxBroadcaster
void SfxListener::RemoveBroadcaster_Impl( SfxBroadcaster& rBC )
{
DBG_CHKTHIS(SfxListener, 0);
const SfxBroadcaster *pBC = &rBC;
aBCs.Remove( aBCs.GetPos(pBC), 1 );
}
//--------------------------------------------------------------------
// registeres at a specific SfxBroadcaster
BOOL SfxListener::StartListening( SfxBroadcaster& rBroadcaster, BOOL bPreventDups )
{
DBG_CHKTHIS(SfxListener, 0);
if ( !bPreventDups || !IsListening( rBroadcaster ) )
{
if ( rBroadcaster.AddListener(*this) )
{
const SfxBroadcaster *pBC = &rBroadcaster;
aBCs.Insert( pBC, aBCs.Count() );
DBG_ASSERT( IsListening(rBroadcaster), "StartListening failed" );
return TRUE;
}
}
return FALSE;
}
//--------------------------------------------------------------------
// unregisteres at a specific SfxBroadcaster
BOOL SfxListener::EndListening( SfxBroadcaster& rBroadcaster, BOOL bAllDups )
{
DBG_CHKTHIS(SfxListener, 0);
if ( !IsListening( rBroadcaster ) )
return FALSE;
do
{
rBroadcaster.RemoveListener(*this);
const SfxBroadcaster *pBC = &rBroadcaster;
aBCs.Remove( aBCs.GetPos(pBC), 1 );
}
while ( bAllDups && IsListening( rBroadcaster ) );
return TRUE;
}
//--------------------------------------------------------------------
// unregisteres at a specific SfxBroadcaster by index
void SfxListener::EndListening( USHORT nNo )
{
DBG_CHKTHIS(SfxListener, 0);
SfxBroadcaster *pBC = aBCs.GetObject(nNo);
pBC->RemoveListener(*this);
aBCs.Remove( nNo, 1 );
}
//--------------------------------------------------------------------
// unregisteres all Broadcasters
void SfxListener::EndListeningAll()
{
DBG_CHKTHIS(SfxListener, 0);
// MI: bei Optimierung beachten: Seiteneffekte von RemoveListener beachten!
while ( aBCs.Count() )
{
SfxBroadcaster *pBC = aBCs.GetObject(0);
pBC->RemoveListener(*this);
aBCs.Remove( 0, 1 );
}
}
//--------------------------------------------------------------------
BOOL SfxListener::IsListening( SfxBroadcaster& rBroadcaster ) const
{
const SfxBroadcaster *pBC = &rBroadcaster;
return USHRT_MAX != aBCs.GetPos( pBC );
}
//--------------------------------------------------------------------
// base implementation of notification handler
#ifdef DBG_UTIL
void SfxListener::Notify( SfxBroadcaster& rBC, const SfxHint& )
#else
void SfxListener::Notify( SfxBroadcaster&, const SfxHint& )
#endif
{
#ifdef DBG_UTIL
const SfxBroadcaster *pBC = &rBC;
DBG_ASSERT( USHRT_MAX != aBCs.GetPos(pBC),
"notification from unregistered broadcaster" );
#endif
}
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