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 24 #ifndef SVX_DELAYEDLINK_HXX 25 #define SVX_DELAYEDLINK_HXX 26 27 #include <tools/link.hxx> 28 29 //........................................................................ 30 namespace svxform 31 { 32 //........................................................................ 33 34 //==================================================================== 35 //= DelayedEvent 36 //==================================================================== 37 /** small class which encapsulates posting a Link instance as ApplicationUserEvent 38 39 No thread safety at all here, just a little saving of code to type multiple times 40 */ 41 class DelayedEvent 42 { 43 public: DelayedEvent(const Link & _rHandler)44 DelayedEvent( const Link& _rHandler ) 45 :m_aHandler( _rHandler ) 46 ,m_nEventId( 0 ) 47 { 48 } 49 ~DelayedEvent()50 ~DelayedEvent() 51 { 52 CancelPendingCall(); 53 } 54 55 /** calls the handler asynchronously 56 57 If there's already a call pending, this previous call is cancelled. 58 */ 59 void Call( void* _pArg = NULL ); 60 61 /** cancels a call which is currently pending 62 63 If no call is currently pending, then this is ignored. 64 */ 65 void CancelPendingCall(); 66 67 private: 68 Link m_aHandler; 69 sal_uLong m_nEventId; 70 71 private: 72 DECL_LINK( OnCall, void* ); 73 74 private: 75 DelayedEvent(); // never implemented 76 DelayedEvent( const DelayedEvent& ); // never implemented 77 DelayedEvent& operator=( const DelayedEvent& ); // never implemented 78 }; 79 80 //........................................................................ 81 } // namespace svxform 82 //........................................................................ 83 84 #endif // SVX_DELAYEDLINK_HXX 85