2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2002 Ximian Inc.
6 * Copyright 2002 Sun Microsystems, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 #include <libbonobo.h>
25 #include "../spi-private.h"
26 #include "cspi-bonobo-listener.h"
32 AccessibleEventListenerCB event;
33 AccessibleDeviceListenerCB device_event;
39 GObjectClass *event_parent_class;
40 GObjectClass *device_parent_class;
42 static guint32 _e_id = 0;
49 cspi_event_handler_new (gpointer method, gpointer user_data)
51 EventHandler *eh = g_new0 (EventHandler, 1);
53 eh->cb.method = method;
54 eh->user_data = user_data;
60 cspi_event_handler_free (EventHandler *handler)
66 cspi_event_list_remove_by_cb (GList *list, gpointer callback)
70 for (l = list; l; l = next)
72 EventHandler *eh = l->data;
75 list = g_list_delete_link (list, l);
77 cspi_event_handler_free (eh);
84 * Standard event dispatcher
87 BONOBO_CLASS_BOILERPLATE (CSpiEventListener, cspi_event_listener,
88 GObject, spi_event_listener_get_type ())
91 cspi_event (SpiEventListener *listener,
92 Accessibility_Event *event)
95 CSpiEventListener *clistener = (CSpiEventListener *) listener;
97 Accessible *source = cspi_object_borrow (event->source);
99 aevent.event.type = event->type;
100 aevent.event.source = source;
101 aevent.event.detail1 = event->detail1;
102 aevent.event.detail2 = event->detail2;
104 aevent.magic = SPI_INTERNAL_EVENT_MAGIC;
105 aevent.ref_count = 0;
106 aevent.data = &event->any_data;
108 /* FIXME: re-enterancy hazard on this list */
109 for (l = clistener->callbacks; l; l = l->next)
111 EventHandler *eh = l->data;
112 /* cast hides our private stuff from client handlers */
113 eh->cb.event ((AccessibleEvent *) &aevent, eh->user_data);
116 cspi_object_return (source);
120 cspi_event_listener_instance_init (CSpiEventListener *listener)
125 cspi_event_listener_finalize (GObject *object)
127 CSpiEventListener *listener = (CSpiEventListener *) object;
130 for (l = listener->callbacks; l; l = l->next)
132 cspi_event_handler_free (l->data);
135 g_list_free (listener->callbacks);
137 event_parent_class->finalize (object);
141 cspi_event_listener_class_init (CSpiEventListenerClass *klass)
143 GObjectClass *object_class = (GObjectClass *) klass;
145 event_parent_class = g_type_class_peek_parent (klass);
146 object_class->finalize = cspi_event_listener_finalize;
148 klass->event = cspi_event;
152 cspi_event_listener_new (void)
154 CSpiEventListener *listener;
156 listener = g_object_new (cspi_event_listener_get_type (), NULL);
162 cspi_event_listener_add_cb (AccessibleEventListener *al,
163 AccessibleEventListenerCB callback,
166 CSpiEventListener *listener = al;
168 g_return_if_fail (CSPI_IS_EVENT_LISTENER (listener));
170 listener->callbacks = g_list_prepend (listener->callbacks,
171 cspi_event_handler_new ((void *) callback, user_data));
175 cspi_event_listener_remove_cb (AccessibleEventListener *al,
176 AccessibleEventListenerCB callback)
178 CSpiEventListener *listener = al;
180 g_return_if_fail (CSPI_IS_EVENT_LISTENER (listener));
182 listener->callbacks = cspi_event_list_remove_by_cb (listener->callbacks, (void *) callback);
186 * Device event handler
189 cspi_device_event (SpiDeviceListener *listener,
190 const Accessibility_DeviceEvent *event)
193 CSpiDeviceListener *clistener = (CSpiDeviceListener *) listener;
194 AccessibleDeviceEvent anevent;
195 gboolean handled = FALSE;
199 case Accessibility_KEY_PRESSED_EVENT:
200 anevent.type = SPI_KEY_PRESSED;
202 case Accessibility_KEY_RELEASED_EVENT:
203 anevent.type = SPI_KEY_RELEASED;
205 case Accessibility_BUTTON_PRESSED_EVENT:
206 anevent.type = SPI_BUTTON_PRESSED;
208 case Accessibility_BUTTON_RELEASED_EVENT:
209 anevent.type = SPI_BUTTON_RELEASED;
215 anevent.keyID = event->id;
216 anevent.keycode = event->hw_code;
217 anevent.timestamp = event->timestamp;
218 anevent.keystring = g_strdup (event->event_string);
219 anevent.modifiers = event->modifiers;
221 /* FIXME: re-enterancy hazard on this list */
222 for (l = clistener->callbacks; l; l = l->next)
224 EventHandler *eh = l->data;
226 if ((handled = eh->cb.device_event (&anevent, eh->user_data)))
236 cspi_device_listener_init (CSpiDeviceListener *listener)
241 cspi_device_listener_finalize (GObject *object)
243 CSpiDeviceListener *listener = (CSpiDeviceListener *) object;
246 for (l = listener->callbacks; l; l = l->next)
248 cspi_event_handler_free (l->data);
251 g_list_free (listener->callbacks);
253 device_parent_class->finalize (object);
257 cspi_device_listener_class_init (CSpiDeviceListenerClass *klass)
259 GObjectClass *object_class = (GObjectClass *) klass;
261 device_parent_class = g_type_class_peek_parent (klass);
262 object_class->finalize = cspi_device_listener_finalize;
264 klass->device_event = cspi_device_event;
267 BONOBO_TYPE_FUNC (CSpiDeviceListener,
268 spi_device_listener_get_type (),
269 cspi_device_listener)
272 cspi_device_listener_new (void)
274 CSpiEventListener *listener = g_object_new (cspi_device_listener_get_type (), NULL);
280 cspi_device_listener_add_cb (AccessibleDeviceListener *al,
281 AccessibleDeviceListenerCB callback,
284 CSpiDeviceListener *listener = al;
286 g_return_if_fail (CSPI_IS_DEVICE_LISTENER (listener));
288 listener->callbacks = g_list_prepend (listener->callbacks,
289 cspi_event_handler_new ((void *)callback, user_data));
293 cspi_device_listener_remove_cb (AccessibleDeviceListener *al,
294 AccessibleDeviceListenerCB callback)
296 CSpiDeviceListener *listener = al;
298 g_return_if_fail (CSPI_IS_DEVICE_LISTENER (listener));
300 listener->callbacks = cspi_event_list_remove_by_cb (listener->callbacks, (void *) callback);
304 cspi_event_listener_unref (AccessibleEventListener *listener)
306 bonobo_object_unref (BONOBO_OBJECT (listener));
310 cspi_device_listener_unref (AccessibleDeviceListener *listener)
312 bonobo_object_unref (BONOBO_OBJECT (listener));
317 cspi_event_listener_get_corba (AccessibleEventListener *listener)
319 return BONOBO_OBJREF (listener);
323 cspi_device_listener_get_corba (AccessibleDeviceListener *listener)
325 return BONOBO_OBJREF (listener);