tbx  0.7.3
openermanager.h
1 /*
2  * tbx RISC OS toolbox library
3  *
4  * Copyright (C) 2010 Alan Buckley All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 /*
26  * openermanager.h
27  *
28  * Created on: 23 Nov 2010
29  * Author: alanb
30  */
31 
32 #ifndef TBX_OPENERMANAGER_H_
33 #define TBX_OPENERMANAGER_H_
34 
35 #include "wimpmessagelistener.h"
36 #include "loader.h"
37 
38 namespace tbx {
39 
44 {
45  static OpenerManager *_instance;
46  struct OpenerItem
47  {
48  int file_type;
49  Loader *loader;
50  OpenerItem *next;
51  } *_first;
52 
53 public:
54  OpenerManager();
55  virtual ~OpenerManager();
56 
63  static OpenerManager *instance() {return _instance;}
64 
65  virtual void recorded_message(WimpMessageEvent &event, int reply_to);
66 
67  void add_opener(int file_type, Loader *loader);
68  void remove_opener(int file_type, Loader *loader);
69 
70 
71 };
72 
73 }
74 
75 #endif /* OPENERMANAGER_H_ */
static OpenerManager * instance()
Get the single instance of the opener manager used for this application.
Definition: openermanager.h:63
Listener to handle WimpRecordedMessages (event code 18)
Definition: wimpmessagelistener.h:269
Wimp message received event.
Definition: wimpmessagelistener.h:209
Class to handle file/data loading from the filer or an external application.
Definition: loader.h:179
virtual void recorded_message(WimpMessageEvent &event, int reply_to)
Process the data open event.
Definition: openermanager.cc:64
Internal class to help implement data openers.
Definition: openermanager.h:43
void add_opener(int file_type, Loader *loader)
Add an opener to the manager.
Definition: openermanager.cc:103
void remove_opener(int file_type, Loader *loader)
Remove an opener from the manager.
Definition: openermanager.cc:123