2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2002 Ximian, Inc.
6 * 2002 Sun Microsystems Inc.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
25 #ifndef _ATSPI_EVENT_LISTENER_H_
26 #define _ATSPI_EVENT_LISTENER_H_
28 #include "glib-object.h"
30 #include "atspi-types.h"
33 * AtspiEventListenerCB:
34 * @event: The event for which notification is sent.
35 * @user_data: User data which is passed to the callback each time a notification takes place.
37 * A function prototype for callbacks via which clients are notified of AT-SPI events.
40 typedef void (*AtspiEventListenerCB) (const AtspiEvent *event,
44 * AtspiEventListenerSimpleCB:
45 * @event: The event for which notification is sent.
47 * Like #AtspiEventlistenerCB, but with no user_data.
50 typedef void (*AtspiEventListenerSimpleCB) (const AtspiEvent *event);
52 #define ATSPI_TYPE_EVENT_LISTENER (atspi_event_listener_get_type ())
53 #define ATSPI_EVENT_LISTENER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), ATSPI_TYPE_EVENT_LISTENER, AtspiEventListener))
54 #define ATSPI_EVENT_LISTENER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), ATSPI_TYPE_EVENT_LISTENER, AtspiEventListenerClass))
55 #define ATSPI_IS_EVENT_LISTENER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATSPI_TYPE_EVENT_LISTENER))
56 #define ATSPI_IS_EVENT_LISTENER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), ATSPI_TYPE_EVENT_LISTENER))
57 #define ATSPI_EVENT_LISTENER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), ATSPI_TYPE_EVENT_LISTENER, AtspiEventListenerClass))
59 typedef struct _AtspiEventListener AtspiEventListener;
60 struct _AtspiEventListener
63 AtspiEventListenerCB callback;
65 GDestroyNotify cb_destroyed;
68 typedef struct _AtspiEventListenerClass AtspiEventListenerClass;
69 struct _AtspiEventListenerClass
71 GObjectClass parent_class;
74 GType atspi_event_listener_get_type (void);
77 atspi_event_listener_new_simple (AtspiEventListenerSimpleCB callback,
78 GDestroyNotify callback_destroyed);
81 atspi_event_listener_register (AtspiEventListener *listener,
82 const gchar *event_type);
85 atspi_event_listener_register_from_callback (AtspiEventListenerCB callback,
87 GDestroyNotify callback_destroyed,
88 const gchar *event_type);
91 atspi_event_listener_register_no_data (AtspiEventListenerSimpleCB callback,
92 GDestroyNotify callback_destroyed,
93 const gchar *event_type);
96 atspi_event_listener_deregister (AtspiEventListener *listener,
97 const gchar *event_type);
100 atspi_event_listener_deregister_from_callback (AtspiEventListenerCB callback,
102 const gchar *event_type);
105 atspi_event_listener_deregister_no_data (AtspiEventListenerSimpleCB callback,
106 const gchar *event_type);
107 #endif /* _ATSPI_EVENT_LISTENER_H_ */