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Diffstat (limited to 'svl/source/notify/lstner.cxx')
-rw-r--r-- | svl/source/notify/lstner.cxx | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/svl/source/notify/lstner.cxx b/svl/source/notify/lstner.cxx new file mode 100644 index 000000000000..4be2020967b5 --- /dev/null +++ b/svl/source/notify/lstner.cxx @@ -0,0 +1,196 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: lstner.cxx,v $ + * $Revision: 1.8.60.1 $ + * + * 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" +#ifndef GCC +#endif + +#ifndef DEBUG_HXX +#include <tools/debug.hxx> +#endif + +#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 +} + |