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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"
+#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
+}
+