1*40df464eSAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*40df464eSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*40df464eSAndrew Rist * or more contributor license agreements. See the NOTICE file
5*40df464eSAndrew Rist * distributed with this work for additional information
6*40df464eSAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*40df464eSAndrew Rist * to you under the Apache License, Version 2.0 (the
8*40df464eSAndrew Rist * "License"); you may not use this file except in compliance
9*40df464eSAndrew Rist * with the License. You may obtain a copy of the License at
10*40df464eSAndrew Rist *
11*40df464eSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*40df464eSAndrew Rist *
13*40df464eSAndrew Rist * Unless required by applicable law or agreed to in writing,
14*40df464eSAndrew Rist * software distributed under the License is distributed on an
15*40df464eSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*40df464eSAndrew Rist * KIND, either express or implied. See the License for the
17*40df464eSAndrew Rist * specific language governing permissions and limitations
18*40df464eSAndrew Rist * under the License.
19*40df464eSAndrew Rist *
20*40df464eSAndrew Rist *************************************************************/
21*40df464eSAndrew Rist
22*40df464eSAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
25cdf0e10cSrcweir #include "precompiled_svl.hxx"
26cdf0e10cSrcweir
27cdf0e10cSrcweir #ifndef GCC
28cdf0e10cSrcweir #endif
29cdf0e10cSrcweir #include <tools/debug.hxx>
30cdf0e10cSrcweir
31cdf0e10cSrcweir #include <svl/hint.hxx>
32cdf0e10cSrcweir #include <svl/smplhint.hxx>
33cdf0e10cSrcweir #include <svl/lstner.hxx>
34cdf0e10cSrcweir
35cdf0e10cSrcweir SV_DECL_PTRARR( SfxListenerArr_Impl, SfxListener*, 0, 2 )
36cdf0e10cSrcweir
37cdf0e10cSrcweir #define _SFX_BRDCST_CXX
38cdf0e10cSrcweir #include <svl/brdcst.hxx>
39cdf0e10cSrcweir
40cdf0e10cSrcweir //====================================================================
41cdf0e10cSrcweir DBG_NAME(SfxBroadcaster)
42cdf0e10cSrcweir TYPEINIT0(SfxBroadcaster);
43cdf0e10cSrcweir
44cdf0e10cSrcweir //====================================================================
45cdf0e10cSrcweir
46cdf0e10cSrcweir //====================================================================
47cdf0e10cSrcweir // broadcast immediately
48cdf0e10cSrcweir
49cdf0e10cSrcweir
Broadcast(const SfxHint & rHint)50cdf0e10cSrcweir void SfxBroadcaster::Broadcast( const SfxHint &rHint )
51cdf0e10cSrcweir {
52cdf0e10cSrcweir DBG_CHKTHIS(SfxBroadcaster, 0);
53cdf0e10cSrcweir
54cdf0e10cSrcweir // is anybody to notify?
55cdf0e10cSrcweir if ( aListeners.Count() /*! || aGlobListeners.Count() */ )
56cdf0e10cSrcweir {
57cdf0e10cSrcweir // notify all registered listeners exactly once
58cdf0e10cSrcweir for ( sal_uInt16 n = 0; n < aListeners.Count(); ++n )
59cdf0e10cSrcweir {
60cdf0e10cSrcweir SfxListener* pListener = aListeners[n];
61cdf0e10cSrcweir if ( pListener )
62cdf0e10cSrcweir pListener->Notify( *this, rHint );
63cdf0e10cSrcweir }
64cdf0e10cSrcweir }
65cdf0e10cSrcweir }
66cdf0e10cSrcweir
67cdf0e10cSrcweir //--------------------------------------------------------------------
68cdf0e10cSrcweir
69cdf0e10cSrcweir // broadcast after a timeout
70cdf0e10cSrcweir
71cdf0e10cSrcweir
BroadcastDelayed(const SfxHint & rHint)72cdf0e10cSrcweir void SfxBroadcaster::BroadcastDelayed( const SfxHint& rHint )
73cdf0e10cSrcweir {
74cdf0e10cSrcweir DBG_WARNING( "not implemented" );
75cdf0e10cSrcweir Broadcast(rHint);
76cdf0e10cSrcweir }
77cdf0e10cSrcweir //--------------------------------------------------------------------
78cdf0e10cSrcweir
79cdf0e10cSrcweir // broadcast in idle-handler
80cdf0e10cSrcweir
BroadcastInIdle(const SfxHint & rHint)81cdf0e10cSrcweir void SfxBroadcaster::BroadcastInIdle( const SfxHint& rHint )
82cdf0e10cSrcweir {
83cdf0e10cSrcweir DBG_WARNING( "not implemented" );
84cdf0e10cSrcweir Broadcast(rHint);
85cdf0e10cSrcweir }
86cdf0e10cSrcweir //--------------------------------------------------------------------
87cdf0e10cSrcweir
88cdf0e10cSrcweir // unregister all listeners
89cdf0e10cSrcweir
~SfxBroadcaster()90cdf0e10cSrcweir SfxBroadcaster::~SfxBroadcaster()
91cdf0e10cSrcweir {
92cdf0e10cSrcweir DBG_DTOR(SfxBroadcaster, 0);
93cdf0e10cSrcweir
94cdf0e10cSrcweir Broadcast( SfxSimpleHint(SFX_HINT_DYING) );
95cdf0e10cSrcweir
96cdf0e10cSrcweir // remove all still registered listeners
97cdf0e10cSrcweir for ( sal_uInt16 nPos = 0; nPos < aListeners.Count(); ++nPos )
98cdf0e10cSrcweir {
99cdf0e10cSrcweir SfxListener *pListener = aListeners[nPos];
100cdf0e10cSrcweir if ( pListener )
101cdf0e10cSrcweir pListener->RemoveBroadcaster_Impl(*this);
102cdf0e10cSrcweir }
103cdf0e10cSrcweir }
104cdf0e10cSrcweir
105cdf0e10cSrcweir //--------------------------------------------------------------------
106cdf0e10cSrcweir
107cdf0e10cSrcweir // simple ctor of class SfxBroadcaster
108cdf0e10cSrcweir
SfxBroadcaster()109cdf0e10cSrcweir SfxBroadcaster::SfxBroadcaster()
110cdf0e10cSrcweir {
111cdf0e10cSrcweir DBG_CTOR(SfxBroadcaster, 0);
112cdf0e10cSrcweir }
113cdf0e10cSrcweir
114cdf0e10cSrcweir //--------------------------------------------------------------------
115cdf0e10cSrcweir
116cdf0e10cSrcweir // copy ctor of class SfxBroadcaster
117cdf0e10cSrcweir
118cdf0e10cSrcweir
SfxBroadcaster(const SfxBroadcaster & rBC)119cdf0e10cSrcweir SfxBroadcaster::SfxBroadcaster( const SfxBroadcaster &rBC )
120cdf0e10cSrcweir {
121cdf0e10cSrcweir DBG_CTOR(SfxBroadcaster, 0);
122cdf0e10cSrcweir
123cdf0e10cSrcweir for ( sal_uInt16 n = 0; n < rBC.aListeners.Count(); ++n )
124cdf0e10cSrcweir {
125cdf0e10cSrcweir SfxListener *pListener = rBC.aListeners[n];
126cdf0e10cSrcweir if ( pListener )
127cdf0e10cSrcweir pListener->StartListening( *this );
128cdf0e10cSrcweir }
129cdf0e10cSrcweir }
130cdf0e10cSrcweir
131cdf0e10cSrcweir //--------------------------------------------------------------------
132cdf0e10cSrcweir
133cdf0e10cSrcweir // add a new SfxListener to the list
134cdf0e10cSrcweir
AddListener(SfxListener & rListener)135cdf0e10cSrcweir sal_Bool SfxBroadcaster::AddListener( SfxListener& rListener )
136cdf0e10cSrcweir {
137cdf0e10cSrcweir DBG_CHKTHIS(SfxBroadcaster, 0);
138cdf0e10cSrcweir const SfxListener *pListener = &rListener;
139cdf0e10cSrcweir const SfxListener *pNull = 0;
140cdf0e10cSrcweir sal_uInt16 nFreePos = aListeners.GetPos( pNull );
141cdf0e10cSrcweir if ( nFreePos < aListeners.Count() )
142cdf0e10cSrcweir aListeners.GetData()[nFreePos] = pListener;
143cdf0e10cSrcweir else if ( aListeners.Count() < (USHRT_MAX-1) )
144cdf0e10cSrcweir aListeners.Insert( pListener, aListeners.Count() );
145cdf0e10cSrcweir else
146cdf0e10cSrcweir {
147cdf0e10cSrcweir DBG_ERROR( "array overflow" );
148cdf0e10cSrcweir return sal_False;
149cdf0e10cSrcweir }
150cdf0e10cSrcweir
151cdf0e10cSrcweir DBG_ASSERT( USHRT_MAX != aListeners.GetPos(pListener),
152cdf0e10cSrcweir "AddListener failed" );
153cdf0e10cSrcweir return sal_True;
154cdf0e10cSrcweir }
155cdf0e10cSrcweir
156cdf0e10cSrcweir //--------------------------------------------------------------------
157cdf0e10cSrcweir
158cdf0e10cSrcweir // called, if no more listeners exists
159cdf0e10cSrcweir
ListenersGone()160cdf0e10cSrcweir void SfxBroadcaster::ListenersGone()
161cdf0e10cSrcweir {
162cdf0e10cSrcweir DBG_CHKTHIS(SfxBroadcaster,0);
163cdf0e10cSrcweir }
164cdf0e10cSrcweir
165cdf0e10cSrcweir //--------------------------------------------------------------------
166cdf0e10cSrcweir
167cdf0e10cSrcweir // forward a notification to all registered listeners
168cdf0e10cSrcweir
Forward(SfxBroadcaster & rBC,const SfxHint & rHint)169cdf0e10cSrcweir void SfxBroadcaster::Forward(SfxBroadcaster& rBC, const SfxHint& rHint)
170cdf0e10cSrcweir {
171cdf0e10cSrcweir const sal_uInt16 nCount = aListeners.Count();
172cdf0e10cSrcweir for ( sal_uInt16 i = 0; i < nCount; ++i )
173cdf0e10cSrcweir {
174cdf0e10cSrcweir SfxListener *pListener = aListeners[i];
175cdf0e10cSrcweir if ( pListener )
176cdf0e10cSrcweir pListener->Notify( rBC, rHint );
177cdf0e10cSrcweir }
178cdf0e10cSrcweir }
179cdf0e10cSrcweir
180cdf0e10cSrcweir //--------------------------------------------------------------------
181cdf0e10cSrcweir
182cdf0e10cSrcweir // remove one SfxListener from the list
183cdf0e10cSrcweir
RemoveListener(SfxListener & rListener)184cdf0e10cSrcweir void SfxBroadcaster::RemoveListener( SfxListener& rListener )
185cdf0e10cSrcweir {
186cdf0e10cSrcweir {DBG_CHKTHIS(SfxBroadcaster, 0);}
187cdf0e10cSrcweir const SfxListener *pListener = &rListener;
188cdf0e10cSrcweir sal_uInt16 nPos = aListeners.GetPos(pListener);
189cdf0e10cSrcweir DBG_ASSERT( nPos != USHRT_MAX, "RemoveListener: Listener unknown" );
190cdf0e10cSrcweir aListeners.GetData()[nPos] = 0;
191cdf0e10cSrcweir if ( !HasListeners() )
192cdf0e10cSrcweir ListenersGone();
193cdf0e10cSrcweir }
194cdf0e10cSrcweir
195cdf0e10cSrcweir //--------------------------------------------------------------------
196cdf0e10cSrcweir
HasListeners() const197cdf0e10cSrcweir sal_Bool SfxBroadcaster::HasListeners() const
198cdf0e10cSrcweir {
199cdf0e10cSrcweir for ( sal_uInt16 n = 0; n < aListeners.Count(); ++n )
200cdf0e10cSrcweir if ( aListeners.GetObject(n) != 0 )
201cdf0e10cSrcweir return sal_True;
202cdf0e10cSrcweir return sal_False;
203cdf0e10cSrcweir }
204cdf0e10cSrcweir
205cdf0e10cSrcweir //--------------------------------------------------------------------
206