xref: /trunk/main/svl/inc/svl/listener.hxx (revision 39a19a47)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 #ifndef _SVT_LISTENER_HXX
24 #define _SVT_LISTENER_HXX
25 
26 #include "svl/svldllapi.h"
27 #include <tools/rtti.hxx>
28 
29 class SvtBroadcaster;
30 class SfxHint;
31 class SvtListenerBase;
32 
33 //-------------------------------------------------------------------------
34 
35 class SVL_DLLPUBLIC SvtListener
36 {
37 	friend class SvtListenerBase;
38 	SvtListenerBase *pBrdCastLst;
39 
40 	const SvtListener&	operator=(const SvtListener &); // n.i., ist verboten
41 
42 public:
43 	TYPEINFO();
44 
45 						SvtListener();
46 						SvtListener( const SvtListener &rCopy );
47 	virtual 			~SvtListener();
48 
49 	sal_Bool				StartListening( SvtBroadcaster& rBroadcaster );
50 	sal_Bool				EndListening( SvtBroadcaster& rBroadcaster );
51 	void				EndListeningAll();
52 	sal_Bool				IsListening( SvtBroadcaster& rBroadcaster ) const;
53 
HasBroadcaster() const54 	sal_Bool 				HasBroadcaster() const { return 0 != pBrdCastLst; }
55 
56 	virtual void		Notify( SvtBroadcaster& rBC, const SfxHint& rHint );
57 };
58 
59 
60 #endif
61 
62