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Diffstat (limited to 'svtools/source/notify/lstner.cxx')
| -rw-r--r-- | svtools/source/notify/lstner.cxx | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/svtools/source/notify/lstner.cxx b/svtools/source/notify/lstner.cxx new file mode 100644 index 000000000000..cad153962046 --- /dev/null +++ b/svtools/source/notify/lstner.cxx @@ -0,0 +1,223 @@ +/************************************************************************* + * + * $RCSfile: lstner.cxx,v $ + * + * $Revision: 1.1.1.1 $ + * + * last change: $Author: hr $ $Date: 2000-09-18 16:59:03 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +#pragma hdrstop + +#ifndef DEBUG_HXX +#include <tools/debug.hxx> +#endif + +#include "hint.hxx" +#include "brdcst.hxx" + +SV_DECL_PTRARR( SfxBroadcasterArr_Impl, SfxBroadcaster*, 0, 2 ); + +#define _SFX_LSTNER_CXX +#include "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 SUPD>=501 + if ( rBroadcaster.AddListener(*this) ) +#else + rBroadcaster.AddListener(*this); +#endif + { + 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 + +void SfxListener::SFX_NOTIFY( SfxBroadcaster& rBC, const TypeId& rBCType, + const SfxHint& rHint, const TypeId& rHintType ) +{ + const SfxBroadcaster *pBC = &rBC; + DBG_ASSERT( USHRT_MAX != aBCs.GetPos(pBC), + "notification from unregistered broadcaster" ); +} + |