/src/libreoffice/svx/source/inc/delayedevent.hxx
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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 | | //= DelayedEvent |
32 | | |
33 | | /** small class which encapsulates posting a Link instance as ApplicationUserEvent |
34 | | |
35 | | No thread safety at all here, just a little saving of code to type multiple times |
36 | | */ |
37 | | class DelayedEvent |
38 | | { |
39 | | public: |
40 | | DelayedEvent( const Link<void*,void>& _rHandler ) |
41 | 0 | :m_aHandler( _rHandler ) |
42 | 0 | ,m_nEventId( nullptr ) |
43 | 0 | { |
44 | 0 | } |
45 | | |
46 | | ~DelayedEvent() |
47 | 0 | { |
48 | 0 | CancelPendingCall(); |
49 | 0 | } |
50 | | |
51 | | /** calls the handler asynchronously |
52 | | |
53 | | If there's already a call pending, this previous call is cancelled. |
54 | | */ |
55 | | void Call(); |
56 | | |
57 | | /** cancels a call which is currently pending |
58 | | |
59 | | If no call is currently pending, then this is ignored. |
60 | | */ |
61 | | void CancelPendingCall(); |
62 | | |
63 | | private: |
64 | | Link<void*,void> m_aHandler; |
65 | | ImplSVEvent * m_nEventId; |
66 | | |
67 | | private: |
68 | | DECL_LINK( OnCall, void*, void ); |
69 | | |
70 | | private: |
71 | | DelayedEvent( const DelayedEvent& ) = delete; |
72 | | DelayedEvent& operator=( const DelayedEvent& ) = delete; |
73 | | }; |
74 | | |
75 | | |
76 | | } |
77 | | |
78 | | |
79 | | #endif // INCLUDED_SVX_SOURCE_INC_DELAYEDEVENT_HXX |
80 | | |
81 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |