1 /*
2  * Copyright © 2011 Canonical Limited
3  *
4  * This library is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * licence or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
16  *
17  * Authors: Ryan Lortie <desrt@desrt.ca>
18  */
19 
20 #ifndef __GTK_ACTION_OBSERVABLE_H__
21 #define __GTK_ACTION_OBSERVABLE_H__
22 
23 #include "gtkactionobserver.h"
24 
25 G_BEGIN_DECLS
26 
27 #define GTK_TYPE_ACTION_OBSERVABLE                          (gtk_action_observable_get_type ())
28 #define GTK_ACTION_OBSERVABLE(inst)                         (G_TYPE_CHECK_INSTANCE_CAST ((inst),                     \
29                                                              GTK_TYPE_ACTION_OBSERVABLE, GtkActionObservable))
30 #define GTK_IS_ACTION_OBSERVABLE(inst)                      (G_TYPE_CHECK_INSTANCE_TYPE ((inst),                     \
31                                                              GTK_TYPE_ACTION_OBSERVABLE))
32 #define GTK_ACTION_OBSERVABLE_GET_IFACE(inst)               (G_TYPE_INSTANCE_GET_INTERFACE ((inst),                  \
33                                                              GTK_TYPE_ACTION_OBSERVABLE,                             \
34                                                              GtkActionObservableInterface))
35 
36 typedef struct _GtkActionObservableInterface                GtkActionObservableInterface;
37 
38 struct _GtkActionObservableInterface
39 {
40   GTypeInterface g_iface;
41 
42   void (* register_observer)   (GtkActionObservable *observable,
43                                 const gchar         *action_name,
44                                 GtkActionObserver   *observer);
45   void (* unregister_observer) (GtkActionObservable *observable,
46                                 const gchar         *action_name,
47                                 GtkActionObserver   *observer);
48 };
49 
50 GType                   gtk_action_observable_get_type                  (void);
51 void                    gtk_action_observable_register_observer         (GtkActionObservable *observable,
52                                                                          const gchar         *action_name,
53                                                                          GtkActionObserver   *observer);
54 void                    gtk_action_observable_unregister_observer       (GtkActionObservable *observable,
55                                                                          const gchar         *action_name,
56                                                                          GtkActionObserver   *observer);
57 
58 G_END_DECLS
59 
60 #endif /* __GTK_ACTION_OBSERVABLE_H__ */
61