Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_SVX_SOURCE_INC_DELAYEDEVENT_HXX
      21             : #define INCLUDED_SVX_SOURCE_INC_DELAYEDEVENT_HXX
      22             : 
      23             : #include <tools/link.hxx>
      24             : 
      25             : struct ImplSVEvent;
      26             : 
      27             : namespace svxform
      28             : {
      29             : 
      30             : 
      31             : 
      32             :     //= DelayedEvent
      33             : 
      34             :     /** small class which encapsulates posting a Link instance as ApplicationUserEvent
      35             : 
      36             :         No thread safety at all here, just a little saving of code to type multiple times
      37             :     */
      38             :     class DelayedEvent
      39             :     {
      40             :     public:
      41         380 :         DelayedEvent( const Link<>& _rHandler )
      42             :             :m_aHandler( _rHandler )
      43         380 :             ,m_nEventId( 0 )
      44             :         {
      45         380 :         }
      46             : 
      47         380 :         ~DelayedEvent()
      48             :         {
      49         380 :             CancelPendingCall();
      50         380 :         }
      51             : 
      52             :         /** calls the handler asynchronously
      53             : 
      54             :             If there's already a call pending, this previous call is cancelled.
      55             :         */
      56             :         void    Call( void* _pArg = NULL );
      57             : 
      58             :         /** cancels a call which is currently pending
      59             : 
      60             :             If no call is currently pending, then this is ignored.
      61             :         */
      62             :         void    CancelPendingCall();
      63             : 
      64             :     private:
      65             :         Link<>  m_aHandler;
      66             :         ImplSVEvent * m_nEventId;
      67             : 
      68             :     private:
      69             :         DECL_LINK( OnCall, void* );
      70             : 
      71             :     private:
      72             :         DelayedEvent( const DelayedEvent& ) SAL_DELETED_FUNCTION;
      73             :         DelayedEvent& operator=( const DelayedEvent& ) SAL_DELETED_FUNCTION;
      74             :     };
      75             : 
      76             : 
      77             : }
      78             : 
      79             : 
      80             : #endif // INCLUDED_SVX_SOURCE_INC_DELAYEDEVENT_HXX
      81             : 
      82             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */