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Diffstat (limited to 'svl/source/notify/brdcst.cxx')
| -rw-r--r-- | svl/source/notify/brdcst.cxx | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/svl/source/notify/brdcst.cxx b/svl/source/notify/brdcst.cxx new file mode 100644 index 000000000000..29983ecedc17 --- /dev/null +++ b/svl/source/notify/brdcst.cxx @@ -0,0 +1,209 @@ +/************************************************************************* + * + * 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" + +#ifndef GCC +#endif +#include <tools/debug.hxx> + +#include <svl/hint.hxx> +#include <svl/smplhint.hxx> +#include <svl/lstner.hxx> + +SV_DECL_PTRARR( SfxListenerArr_Impl, SfxListener*, 0, 2 ) + +#define _SFX_BRDCST_CXX +#include <svl/brdcst.hxx> + +//==================================================================== +DBG_NAME(SfxBroadcaster) +TYPEINIT0(SfxBroadcaster); + +//==================================================================== + +//==================================================================== +// broadcast immediately + + +void SfxBroadcaster::Broadcast( const SfxHint &rHint ) +{ + DBG_CHKTHIS(SfxBroadcaster, 0); + + // is anybody to notify? + if ( aListeners.Count() /*! || aGlobListeners.Count() */ ) + { + // notify all registered listeners exactly once + for ( USHORT n = 0; n < aListeners.Count(); ++n ) + { + SfxListener* pListener = aListeners[n]; + if ( pListener ) + pListener->Notify( *this, rHint ); + } + } +} + +//-------------------------------------------------------------------- + +// broadcast after a timeout + + +void SfxBroadcaster::BroadcastDelayed( const SfxHint& rHint ) +{ + DBG_WARNING( "not implemented" ); + Broadcast(rHint); +} +//-------------------------------------------------------------------- + +// broadcast in idle-handler + +void SfxBroadcaster::BroadcastInIdle( const SfxHint& rHint ) +{ + DBG_WARNING( "not implemented" ); + Broadcast(rHint); +} +//-------------------------------------------------------------------- + +// unregister all listeners + +SfxBroadcaster::~SfxBroadcaster() +{ + DBG_DTOR(SfxBroadcaster, 0); + + Broadcast( SfxSimpleHint(SFX_HINT_DYING) ); + + // remove all still registered listeners + for ( USHORT nPos = 0; nPos < aListeners.Count(); ++nPos ) + { + SfxListener *pListener = aListeners[nPos]; + if ( pListener ) + pListener->RemoveBroadcaster_Impl(*this); + } +} + +//-------------------------------------------------------------------- + +// simple ctor of class SfxBroadcaster + +SfxBroadcaster::SfxBroadcaster() +{ + DBG_CTOR(SfxBroadcaster, 0); +} + +//-------------------------------------------------------------------- + +// copy ctor of class SfxBroadcaster + + +SfxBroadcaster::SfxBroadcaster( const SfxBroadcaster &rBC ) +{ + DBG_CTOR(SfxBroadcaster, 0); + + for ( USHORT n = 0; n < rBC.aListeners.Count(); ++n ) + { + SfxListener *pListener = rBC.aListeners[n]; + if ( pListener ) + pListener->StartListening( *this ); + } +} + +//-------------------------------------------------------------------- + +// add a new SfxListener to the list + +BOOL SfxBroadcaster::AddListener( SfxListener& rListener ) +{ + DBG_CHKTHIS(SfxBroadcaster, 0); + const SfxListener *pListener = &rListener; + const SfxListener *pNull = 0; + USHORT nFreePos = aListeners.GetPos( pNull ); + if ( nFreePos < aListeners.Count() ) + aListeners.GetData()[nFreePos] = pListener; + else if ( aListeners.Count() < (USHRT_MAX-1) ) + aListeners.Insert( pListener, aListeners.Count() ); + else + { + DBG_ERROR( "array overflow" ); + return FALSE; + } + + DBG_ASSERT( USHRT_MAX != aListeners.GetPos(pListener), + "AddListener failed" ); + return TRUE; +} + +//-------------------------------------------------------------------- + +// called, if no more listeners exists + +void SfxBroadcaster::ListenersGone() +{ + DBG_CHKTHIS(SfxBroadcaster,0); +} + +//-------------------------------------------------------------------- + +// forward a notification to all registered listeners + +void SfxBroadcaster::Forward(SfxBroadcaster& rBC, const SfxHint& rHint) +{ + const USHORT nCount = aListeners.Count(); + for ( USHORT i = 0; i < nCount; ++i ) + { + SfxListener *pListener = aListeners[i]; + if ( pListener ) + pListener->Notify( rBC, rHint ); + } +} + +//-------------------------------------------------------------------- + +// remove one SfxListener from the list + +void SfxBroadcaster::RemoveListener( SfxListener& rListener ) +{ + {DBG_CHKTHIS(SfxBroadcaster, 0);} + const SfxListener *pListener = &rListener; + USHORT nPos = aListeners.GetPos(pListener); + DBG_ASSERT( nPos != USHRT_MAX, "RemoveListener: Listener unknown" ); + aListeners.GetData()[nPos] = 0; + if ( !HasListeners() ) + ListenersGone(); +} + +//-------------------------------------------------------------------- + +BOOL SfxBroadcaster::HasListeners() const +{ + for ( USHORT n = 0; n < aListeners.Count(); ++n ) + if ( aListeners.GetObject(n) != 0 ) + return TRUE; + return FALSE; +} + +//-------------------------------------------------------------------- |