1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2003 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, 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 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
39 #include <dbus/dbus.h>
44 #include "de-marshaller.h"
46 #include "event-source.h"
48 #include "deviceeventcontroller.h"
49 #include "reentrant-list.h"
51 #include "introspection.h"
53 #define CHECK_RELEASE_DELAY 20
54 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
55 static SpiDEController *saved_controller;
57 /* Our parent Gtk object type */
58 #define PARENT_TYPE G_TYPE_OBJECT
60 /* A pointer to our parent object class */
61 static int spi_error_code = 0;
66 typedef struct _SpiPoint SpiPoint;
67 static unsigned int mouse_mask_state = 0;
68 static unsigned int key_modifier_mask =
69 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
70 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
72 static gboolean have_mouse_listener = FALSE;
73 static gboolean have_mouse_event_listener = FALSE;
78 guint pending_add : 1;
79 guint pending_remove : 1;
81 Accessibility_ControllerEventMask mod_mask;
82 dbus_uint32_t key_val; /* KeyCode */
83 } DEControllerGrabMask;
86 gboolean spi_controller_update_key_grabs (SpiDEController *controller,
87 Accessibility_DeviceEvent *recv);
89 static gboolean eventtype_seq_contains_event (dbus_uint32_t types,
90 const Accessibility_DeviceEvent *event);
91 static gboolean spi_dec_poll_mouse_moving (gpointer data);
92 static gboolean spi_dec_poll_mouse_idle (gpointer data);
94 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
97 spi_dec_plat_get_keycode (SpiDEController *controller,
103 SpiDEControllerClass *klass;
104 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
105 if (klass->plat.get_keycode)
106 return klass->plat.get_keycode (controller, keysym, key_str, fix, modmask);
112 spi_dec_plat_mouse_check (SpiDEController *controller,
113 int *x, int *y, gboolean *moved)
115 SpiDEControllerClass *klass;
116 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
117 if (klass->plat.mouse_check)
118 return klass->plat.mouse_check (controller, x, y, moved);
124 spi_dec_plat_grab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
126 SpiDEControllerClass *klass;
127 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
128 if (klass->plat.grab_key)
129 return klass->plat.grab_key (controller, key_val, mod_mask);
135 spi_dec_plat_ungrab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
137 SpiDEControllerClass *klass;
138 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
139 if (klass->plat.ungrab_key)
140 klass->plat.ungrab_key (controller, key_val, mod_mask);
144 spi_dec_plat_synth_keycode_press (SpiDEController *controller,
145 unsigned int keycode)
147 SpiDEControllerClass *klass;
148 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
149 if (klass->plat.synth_keycode_press)
150 return klass->plat.synth_keycode_press (controller, keycode);
156 spi_dec_plat_synth_keycode_release (SpiDEController *controller,
157 unsigned int keycode)
159 SpiDEControllerClass *klass;
160 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
161 if (klass->plat.synth_keycode_release)
162 return klass->plat.synth_keycode_release (controller, keycode);
168 spi_dec_plat_lock_modifiers (SpiDEController *controller, unsigned modifiers)
170 SpiDEControllerClass *klass;
171 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
172 if (klass->plat.lock_modifiers)
173 return klass->plat.lock_modifiers (controller, modifiers);
179 spi_dec_plat_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
181 SpiDEControllerClass *klass;
182 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
183 if (klass->plat.unlock_modifiers)
184 return klass->plat.unlock_modifiers (controller, modifiers);
190 spi_dec_plat_synth_keystring (SpiDEController *controller, guint synth_type, gint keycode, const char *keystring)
192 SpiDEControllerClass *klass;
193 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
194 if (klass->plat.synth_keystring)
195 return klass->plat.synth_keystring (controller, synth_type, keycode, keystring);
201 spi_dec_plat_emit_modifier_event (SpiDEController *controller, guint prev_mask,
204 SpiDEControllerClass *klass;
205 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
206 if (klass->plat.emit_modifier_event)
207 klass->plat.emit_modifier_event (controller, prev_mask, current_mask);
211 spi_dec_plat_generate_mouse_event (SpiDEController *controller,
214 const char *eventName)
216 SpiDEControllerClass *klass;
217 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
218 if (klass->plat.generate_mouse_event)
219 klass->plat.generate_mouse_event (controller, x, y, eventName);
223 invalid_arguments_error (DBusMessage *message)
228 errmsg= g_strdup_printf (
229 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
230 dbus_message_get_member (message),
231 dbus_message_get_signature (message),
232 dbus_message_get_interface (message));
233 reply = dbus_message_new_error (message,
234 DBUS_ERROR_INVALID_ARGS,
240 /* Private methods */
242 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
244 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
248 dbus_error_init (&error);
249 dbus_bus_add_match (bus, match, &error);
251 if (dbus_error_is_set (&error))
253 dbus_error_free (&error);
265 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
267 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
271 dbus_error_init (&error);
272 dbus_bus_remove_match (bus, match, &error);
274 if (dbus_error_is_set (&error))
276 dbus_error_free (&error);
287 static DEControllerGrabMask *
288 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
290 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
292 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
294 clone->ref_count = 1;
295 clone->pending_add = TRUE;
296 clone->pending_remove = FALSE;
302 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
308 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
310 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
311 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
319 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
324 spi_dec_dbus_emit (SpiDEController *controller, const char *interface,
325 const char *name, const char *minor, int a1, int a2)
327 DBusMessage *signal = NULL;
328 DBusMessageIter iter, iter_struct, iter_variant;
330 const char *path = SPI_DBUS_PATH_ROOT;
331 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
333 signal = dbus_message_new_signal (path, interface, name);
335 dbus_message_iter_init_append (signal, &iter);
337 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
338 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a1);
339 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a2);
340 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
341 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
342 dbus_message_iter_close_container (&iter, &iter_variant);
344 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
346 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
347 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
348 dbus_message_iter_close_container (&iter, &iter_struct);
350 dbus_connection_send (controller->bus, signal, NULL);
351 dbus_message_unref (signal);
355 spi_dec_poll_mouse_moved (gpointer data)
357 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
362 mask_return = spi_dec_plat_mouse_check (controller, &x, &y, &moved);
364 if ((mask_return & key_modifier_mask) !=
365 (mouse_mask_state & key_modifier_mask))
367 spi_dec_plat_emit_modifier_event (controller, mouse_mask_state, mask_return);
368 mouse_mask_state = mask_return;
375 spi_dec_poll_mouse_idle (gpointer data)
377 if (!have_mouse_event_listener && !have_mouse_listener)
379 else if (!spi_dec_poll_mouse_moved (data))
384 id = g_timeout_add (20, spi_dec_poll_mouse_moving, data);
385 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_moving");
391 spi_dec_poll_mouse_moving (gpointer data)
393 if (!have_mouse_event_listener && !have_mouse_listener)
395 else if (spi_dec_poll_mouse_moved (data))
400 id = g_timeout_add (100, spi_dec_poll_mouse_idle, data);
401 g_source_set_name_by_id (id, "[at-spi2-core] check_release");
407 * Eventually we can use this to make the marshalling of mask types
408 * more sane, but for now we just use this to detect
409 * the use of 'virtual' masks such as numlock and convert them to
410 * system-specific mask values (i.e. ModMask).
413 static Accessibility_ControllerEventMask
414 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
416 Accessibility_ControllerEventMask tmp_mask;
417 gboolean has_numlock;
419 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
423 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
424 tmp_mask |= _numlock_physical_mask;
430 static DEControllerKeyListener *
431 spi_dec_key_listener_new (const char *bus_name,
434 const Accessibility_ControllerEventMask mask,
435 const dbus_uint32_t types,
436 const Accessibility_EventListenerMode *mode)
438 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
439 key_listener->listener.bus_name = g_strdup(bus_name);
440 key_listener->listener.path = g_strdup(path);
441 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
442 key_listener->keys = keys;
443 key_listener->mask = spi_dec_translate_mask (mask);
444 key_listener->listener.types = types;
447 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
448 memcpy(key_listener->mode, mode, sizeof(*mode));
451 key_listener->mode = NULL;
454 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
455 (unsigned int) key_listener->mask,
456 (int) (mode ? mode->global : 0),
457 (void *) key_listener->keys,
458 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
464 static DEControllerListener *
465 spi_dec_listener_new (const char *bus_name,
469 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
470 listener->bus_name = g_strdup(bus_name);
471 listener->path = g_strdup(path);
472 listener->type = SPI_DEVICE_TYPE_MOUSE;
473 listener->types = types;
477 static DEControllerListener *
478 spi_listener_clone (DEControllerListener *listener)
480 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
481 clone->bus_name = g_strdup (listener->bus_name);
482 clone->path = g_strdup (listener->path);
483 clone->type = listener->type;
484 clone->types = listener->types;
488 static GSList *keylist_clone (GSList *s)
493 for (l = s; l; l = g_slist_next(l))
495 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
498 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
499 kd->keycode = kds->keycode;
500 kd->keysym = kds->keysym;
501 kd->keystring = g_strdup(kds->keystring);
502 d = g_slist_append(d, kd);
508 static DEControllerKeyListener *
509 spi_key_listener_clone (DEControllerKeyListener *key_listener)
511 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
512 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
513 clone->listener.path = g_strdup (key_listener->listener.path);
514 clone->listener.type = SPI_DEVICE_TYPE_KBD;
515 clone->keys = keylist_clone (key_listener->keys);
516 clone->mask = key_listener->mask;
517 clone->listener.types = key_listener->listener.types;
518 if (key_listener->mode)
520 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
521 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
528 static void keylist_free(GSList *keys)
532 for (l = keys; l; l = g_slist_next(l))
534 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
535 g_free(kd->keystring);
542 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
544 keylist_free(key_listener->keys);
545 if (key_listener->mode) g_free(key_listener->mode);
546 g_free (key_listener->listener.bus_name);
547 g_free (key_listener->listener.path);
548 g_free (key_listener);
552 spi_key_listener_clone_free (DEControllerKeyListener *clone)
554 spi_key_listener_data_free (clone);
558 spi_listener_clone_free (DEControllerListener *clone)
560 g_free (clone->path);
561 g_free (clone->bus_name);
566 spi_dec_listener_free (DEControllerListener *listener)
568 if (listener->type == SPI_DEVICE_TYPE_KBD)
569 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
572 g_free (listener->bus_name);
573 g_free (listener->path);
578 _register_keygrab (SpiDEController *controller,
579 DEControllerGrabMask *grab_mask)
583 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
584 spi_grab_mask_compare_values);
587 DEControllerGrabMask *cur_mask = l->data;
589 cur_mask->ref_count++;
590 if (cur_mask->pending_remove)
592 cur_mask->pending_remove = FALSE;
597 controller->keygrabs_list =
598 g_list_prepend (controller->keygrabs_list,
599 spi_grab_mask_clone (grab_mask));
604 _deregister_keygrab (SpiDEController *controller,
605 DEControllerGrabMask *grab_mask)
609 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
610 spi_grab_mask_compare_values);
614 DEControllerGrabMask *cur_mask = l->data;
616 cur_mask->ref_count--;
617 if (cur_mask->ref_count <= 0)
619 cur_mask->pending_remove = TRUE;
625 handle_keygrab (SpiDEController *controller,
626 DEControllerKeyListener *key_listener,
627 void (*process_cb) (SpiDEController *controller,
628 DEControllerGrabMask *grab_mask))
630 DEControllerGrabMask grab_mask = { 0 };
632 grab_mask.mod_mask = key_listener->mask;
633 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
635 grab_mask.key_val = AnyKey;
637 fprintf (stderr, "AnyKey grab!");
639 process_cb (controller, &grab_mask);
645 for (l = key_listener->keys; l; l = g_slist_next(l))
647 Accessibility_KeyDefinition *keydef = l->data;
649 key_val = spi_dec_plat_get_keycode (controller, keydef->keysym, keydef->keystring, FALSE, NULL);
651 key_val = keydef->keycode;
652 grab_mask.key_val = key_val;
653 process_cb (controller, &grab_mask);
659 spi_controller_register_global_keygrabs (SpiDEController *controller,
660 DEControllerKeyListener *key_listener)
662 handle_keygrab (controller, key_listener, _register_keygrab);
663 return spi_controller_update_key_grabs (controller, NULL);
667 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
668 DEControllerKeyListener *key_listener)
670 handle_keygrab (controller, key_listener, _deregister_keygrab);
671 spi_controller_update_key_grabs (controller, NULL);
675 append_keystroke_listener (DBusMessageIter *iter, DEControllerKeyListener *listener)
677 dbus_uint32_t d_uint;
678 DBusMessageIter iter_struct, iter_subarray, iter_substruct;
681 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
685 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
686 &listener->listener.bus_name);
687 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
688 &listener->listener.path);
689 d_uint = listener->listener.type;
690 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
691 d_uint = listener->listener.types;
692 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
693 if (!dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_ARRAY,
694 "(iisi)", &iter_subarray))
696 dbus_message_iter_close_container (iter, &iter_struct);
699 for (kl = listener->keys; kl; kl = kl->next)
701 Accessibility_KeyDefinition *kd = kl->data;
702 if (!dbus_message_iter_open_container (&iter_subarray, DBUS_TYPE_STRUCT,
703 NULL, &iter_substruct))
705 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keycode);
706 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keysym);
707 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_STRING, &kd->keystring);
708 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->unused);
709 dbus_message_iter_close_container (&iter_subarray, &iter_substruct);
711 dbus_message_iter_close_container (&iter_struct, &iter_subarray);
712 d_uint = listener->mask;
713 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
714 if (dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_STRUCT,
715 NULL, &iter_substruct))
719 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
720 &listener->mode->synchronous);
721 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
722 &listener->mode->preemptive);
723 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
724 &listener->mode->global);
728 dbus_bool_t dummy_val = FALSE;
729 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
731 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
733 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
736 dbus_message_iter_close_container (&iter_struct, &iter_substruct);
738 dbus_message_iter_close_container (iter, &iter_struct);
742 notify_keystroke_listener (SpiDEController *controller,
743 DEControllerKeyListener *listener,
746 const char *path = SPI_DBUS_PATH_DEC;
747 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
748 const char *name = (enable
749 ? "KeystrokeListenerRegistered"
750 : "KeystrokeListenerDeregistered");
752 DBusMessageIter iter;
754 signal = dbus_message_new_signal (path, interface, name);
757 dbus_message_iter_init_append (signal, &iter);
758 append_keystroke_listener (&iter, listener);
759 dbus_connection_send (controller->bus, signal, NULL);
760 dbus_message_unref (signal);
764 append_mouse_listener (DBusMessageIter *iter, DEControllerListener *listener)
766 DBusMessageIter iter_struct;
767 dbus_uint32_t d_uint;
769 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
772 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
773 &listener->bus_name);
774 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
776 d_uint = listener->types;
777 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
778 dbus_message_iter_close_container (iter, &iter_struct);
782 notify_mouse_listener (SpiDEController *controller,
783 DEControllerListener *listener,
786 const char *path = SPI_DBUS_PATH_DEC;
787 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
788 const char *name = (enable
789 ? "DeviceListenerRegistered"
790 : "DeviceListenerDeregistered");
792 DBusMessageIter iter;
794 signal = dbus_message_new_signal (path, interface, name);
797 dbus_message_iter_init_append (signal, &iter);
798 append_mouse_listener (&iter, listener);
799 dbus_connection_send (controller->bus, signal, NULL);
800 dbus_message_unref (signal);
804 spi_controller_register_device_listener (SpiDEController *controller,
805 DEControllerListener *listener)
807 DEControllerKeyListener *key_listener;
810 switch (listener->type) {
811 case SPI_DEVICE_TYPE_KBD:
812 key_listener = (DEControllerKeyListener *) listener;
814 controller->key_listeners = g_list_prepend (controller->key_listeners,
816 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
817 if (key_listener->mode->global)
819 retval = spi_controller_register_global_keygrabs (controller, key_listener);
824 notify_keystroke_listener (controller, key_listener, TRUE);
826 case SPI_DEVICE_TYPE_MOUSE:
827 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
828 if (!have_mouse_listener)
830 have_mouse_listener = TRUE;
831 if (!have_mouse_event_listener) {
833 id = g_timeout_add (100, spi_dec_poll_mouse_idle, controller);
834 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
837 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
838 notify_mouse_listener (controller, listener, TRUE);
847 set_reply (DBusPendingCall *pending, void *user_data)
849 void **replyptr = (void **)user_data;
851 *replyptr = dbus_pending_call_steal_reply (pending);
854 static GSList *hung_processes = NULL;
857 reset_hung_process (DBusPendingCall *pending, void *data)
859 DBusMessage *message = data;
860 const char *dest = dbus_message_get_destination (message);
863 /* At this point we don't care about the result */
864 dbus_pending_call_unref (pending);
866 for (l = hung_processes; l; l = l->next)
868 if (!strcmp (l->data, dest))
871 hung_processes = g_slist_remove (hung_processes, l->data);
878 time_elapsed (struct timeval *origin)
882 gettimeofday (&tv, NULL);
883 return (tv.tv_sec - origin->tv_sec) * 1000 + (tv.tv_usec - origin->tv_usec) / 1000;
887 reset_hung_process_from_ping (DBusPendingCall *pending, void *data)
891 for (l = hung_processes; l; l = l->next)
893 if (!strcmp (l->data, data))
896 hung_processes = g_slist_remove (hung_processes, l->data);
901 dbus_pending_call_unref (pending);
905 send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, int timeout, DBusError *error)
907 DBusPendingCall *pending;
908 DBusMessage *reply = NULL;
911 if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
915 dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
916 gettimeofday (&tv, NULL);
919 if (!dbus_connection_read_write_dispatch (bus, timeout) ||
920 time_elapsed (&tv) > timeout)
922 const char *dest = dbus_message_get_destination (message);
925 dbus_message_ref (message);
926 dbus_pending_call_set_notify (pending, reset_hung_process, message,
927 (DBusFreeFunction) dbus_message_unref);
928 message = dbus_message_new_method_call (dest, "/",
929 "org.freedesktop.DBus.Peer",
933 dbus_connection_send_with_reply (bus, message, &pending, -1);
934 dbus_message_unref (message);
937 bus_name_dup = g_strdup (dest);
938 dbus_pending_call_set_notify (pending, reset_hung_process_from_ping,
940 for (l = hung_processes; l; l = l->next)
941 if (!strcmp (l->data, dest))
943 hung_processes = g_slist_prepend (hung_processes, g_strdup (dest));
947 dbus_pending_call_unref (pending);
951 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
952 SpiRegistry *registry,
953 DEControllerListener *listener,
954 const Accessibility_DeviceEvent *key_event)
956 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
958 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
960 dbus_bool_t consumed = FALSE;
962 gboolean hung = FALSE;
964 for (l = hung_processes; l; l = l->next)
966 if (!strcmp (l->data, listener->bus_name))
968 dbus_message_set_no_reply (message, TRUE);
974 if (spi_dbus_marshal_deviceEvent(message, key_event))
980 dbus_connection_send (controller->bus, message, NULL);
981 dbus_message_unref (message);
985 reply = send_and_allow_reentry (controller->bus, message, 3000, NULL);
988 dbus_message_get_args(reply, NULL, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
989 dbus_message_unref(reply);
992 dbus_message_unref(message);
997 spi_controller_notify_mouselisteners (SpiDEController *controller,
998 const Accessibility_DeviceEvent *event)
1001 GSList *notify = NULL, *l2;
1002 GList **listeners = &controller->mouse_listeners;
1003 gboolean is_consumed;
1004 #ifdef SPI_KEYEVENT_DEBUG
1005 gboolean found = FALSE;
1012 for (l = *listeners; l; l = l->next)
1014 DEControllerListener *listener = l->data;
1016 if (eventtype_seq_contains_event (listener->types, event))
1018 /* we clone (don't dup) the listener, to avoid refcount inc. */
1019 notify = g_slist_prepend (notify,
1020 spi_listener_clone (listener));
1021 #ifdef SPI_KEYEVENT_DEBUG
1027 #ifdef SPI_KEYEVENT_DEBUG
1030 g_print ("no match for event\n");
1034 is_consumed = FALSE;
1035 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1037 DEControllerListener *listener = l2->data;
1039 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1041 spi_listener_clone_free ((DEControllerListener *) l2->data);
1044 for (; l2; l2 = l2->next)
1046 DEControllerListener *listener = l2->data;
1047 spi_listener_clone_free (listener);
1048 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1051 g_slist_free (notify);
1054 if (is_consumed) g_message ("consumed\n");
1060 key_set_contains_key (GSList *key_set,
1061 const Accessibility_DeviceEvent *key_event)
1070 g_print ("null key set!\n");
1075 len = g_slist_length (key_set);
1077 if (len == 0) /* special case, means "all keys/any key" */
1080 g_print ("anykey\n");
1085 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1087 Accessibility_KeyDefinition *kd = l->data;
1088 #ifdef SPI_KEYEVENT_DEBUG
1089 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1093 (int) key_event->id,
1094 (int) key_event->hw_code,
1095 key_event->event_string);
1097 if (kd->keysym == (dbus_uint32_t) key_event->id)
1101 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1105 if (key_event->event_string && key_event->event_string[0] &&
1106 !strcmp (kd->keystring, key_event->event_string))
1116 eventtype_seq_contains_event (dbus_uint32_t types,
1117 const Accessibility_DeviceEvent *event)
1119 if (types == 0) /* special case, means "all events/any event" */
1124 return (types & (1 << event->type));
1128 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1129 DEControllerKeyListener *listener,
1130 dbus_bool_t is_system_global)
1132 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1133 key_set_contains_key (listener->keys, key_event) &&
1134 eventtype_seq_contains_event (listener->listener.types, key_event) &&
1135 (is_system_global == listener->mode->global))
1146 spi_controller_notify_keylisteners (SpiDEController *controller,
1147 Accessibility_DeviceEvent *key_event,
1148 dbus_bool_t is_system_global)
1151 GSList *notify = NULL, *l2;
1152 GList **key_listeners = &controller->key_listeners;
1153 gboolean is_consumed;
1160 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1161 if (key_event->modifiers & _numlock_physical_mask)
1162 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1164 for (l = *key_listeners; l; l = l->next)
1166 DEControllerKeyListener *key_listener = l->data;
1168 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1170 /* we clone (don't dup) the listener, to avoid refcount inc. */
1171 notify = g_slist_prepend (notify,
1172 spi_key_listener_clone (key_listener));
1176 #ifdef SPI_KEYEVENT_DEBUG
1179 g_print ("no match for event\n");
1183 is_consumed = FALSE;
1184 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1186 DEControllerKeyListener *key_listener = l2->data;
1188 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1189 key_listener->mode->preemptive;
1191 spi_key_listener_clone_free (key_listener);
1194 for (; l2; l2 = l2->next)
1196 DEControllerKeyListener *key_listener = l2->data;
1197 spi_key_listener_clone_free (key_listener);
1198 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1201 g_slist_free (notify);
1204 if (is_consumed) g_message ("consumed\n");
1210 spi_clear_error_state (void)
1212 gboolean retval = spi_error_code != 0;
1218 spi_controller_update_key_grabs (SpiDEController *controller,
1219 Accessibility_DeviceEvent *recv)
1222 gboolean update_failed = FALSE;
1225 g_return_val_if_fail (controller != NULL, FALSE);
1228 * masks known to work with default RH 7.1+:
1229 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1230 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1231 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1232 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1234 * ControlMask grabs are broken, must be in use already
1237 keycode = spi_dec_plat_get_keycode (controller, recv->id, NULL, TRUE, NULL);
1238 for (l = controller->keygrabs_list; l; l = next)
1241 gboolean re_issue_grab;
1242 DEControllerGrabMask *grab_mask = l->data;
1246 re_issue_grab = recv &&
1247 (recv->modifiers & grab_mask->mod_mask) &&
1248 (grab_mask->key_val == keycode);
1251 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1252 (long int) grab_mask->key_val,
1253 (long int) grab_mask->mod_mask,
1254 grab_mask->pending_add ? '+' : '.',
1255 grab_mask->pending_remove ? '-' : '.',
1256 re_issue_grab ? "re-issue": "");
1261 if (grab_mask->pending_add && grab_mask->pending_remove)
1265 else if (grab_mask->pending_remove)
1268 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1270 spi_dec_plat_ungrab_key (controller,
1272 grab_mask->mod_mask);
1276 else if (grab_mask->pending_add || re_issue_grab)
1280 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1282 update_failed = spi_dec_plat_grab_key (controller,
1284 grab_mask->mod_mask);
1285 if (update_failed) {
1286 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1291 grab_mask->pending_add = FALSE;
1292 grab_mask->pending_remove = FALSE;
1296 g_assert (grab_mask->ref_count <= 0);
1298 controller->keygrabs_list = g_list_delete_link (
1299 controller->keygrabs_list, l);
1301 spi_grab_mask_free (grab_mask);
1306 return ! update_failed;
1310 * Implemented GObject::finalize
1313 spi_device_event_controller_object_finalize (GObject *object)
1315 SpiDEController *controller;
1316 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1317 SpiDEControllerClass *klass;
1319 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1320 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
1322 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1324 if (klass->plat.finalize)
1325 klass->plat.finalize (controller);
1327 parent_class->finalize (object);
1331 * DBus Accessibility::DEController::RegisterKeystrokeListener
1332 * method implementation
1334 static DBusMessage *
1335 impl_register_keystroke_listener (DBusConnection *bus,
1336 DBusMessage *message,
1339 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1340 DEControllerKeyListener *dec_listener;
1341 DBusMessageIter iter, iter_array;
1343 GSList *keys = NULL;
1344 dbus_int32_t mask, type;
1345 Accessibility_EventListenerMode *mode;
1347 DBusMessage *reply = NULL;
1350 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu(bbb)") != 0)
1351 return invalid_arguments_error (message);
1353 dbus_message_iter_init(message, &iter);
1354 dbus_message_iter_get_basic(&iter, &path);
1355 dbus_message_iter_next(&iter);
1356 dbus_message_iter_recurse(&iter, &iter_array);
1357 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1359 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1360 if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
1364 kd->keystring = g_strdup (keystring);
1365 keys = g_slist_append(keys, kd);
1367 dbus_message_iter_next(&iter);
1368 dbus_message_iter_get_basic(&iter, &mask);
1369 dbus_message_iter_next(&iter);
1370 dbus_message_iter_get_basic(&iter, &type);
1371 dbus_message_iter_next(&iter);
1372 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1375 spi_dbus_message_iter_get_struct(&iter, DBUS_TYPE_BOOLEAN, &mode->synchronous, DBUS_TYPE_BOOLEAN, &mode->preemptive, DBUS_TYPE_BOOLEAN, &mode->global, DBUS_TYPE_INVALID);
1378 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1379 dbus_message_get_sender(message), path, (unsigned long) mask);
1381 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1383 ret = spi_controller_register_device_listener (
1384 controller, (DEControllerListener *) dec_listener);
1385 reply = dbus_message_new_method_return (message);
1388 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1394 * DBus Accessibility::DEController::RegisterDeviceEventListener
1395 * method implementation
1397 static DBusMessage *
1398 impl_register_device_event_listener (DBusConnection *bus,
1399 DBusMessage *message,
1402 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1403 DEControllerListener *dec_listener;
1405 dbus_int32_t event_types;
1407 DBusMessage *reply = NULL;
1409 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1411 return invalid_arguments_error (message);
1413 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1414 ret = spi_controller_register_device_listener (
1415 controller, (DEControllerListener *) dec_listener);
1416 reply = dbus_message_new_method_return (message);
1419 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1425 DBusConnection *bus;
1426 DEControllerListener *listener;
1427 } RemoveListenerClosure;
1429 static SpiReEntrantContinue
1430 remove_listener_cb (GList * const *list,
1433 DEControllerListener *listener = (*list)->data;
1434 RemoveListenerClosure *ctx = user_data;
1436 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1437 !strcmp(ctx->listener->path, listener->path))
1439 spi_re_entrant_list_delete_link (list);
1440 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1441 spi_dec_listener_free (listener);
1444 return SPI_RE_ENTRANT_CONTINUE;
1447 static SpiReEntrantContinue
1448 copy_key_listener_cb (GList * const *list,
1451 DEControllerKeyListener *key_listener = (*list)->data;
1452 RemoveListenerClosure *ctx = user_data;
1454 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1455 !strcmp(ctx->listener->path, key_listener->listener.path))
1457 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1458 DEControllerKeyListener *ctx_key_listener =
1459 (DEControllerKeyListener *) ctx->listener;
1460 keylist_free (ctx_key_listener->keys);
1461 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1464 return SPI_RE_ENTRANT_CONTINUE;
1468 spi_controller_deregister_device_listener (SpiDEController *controller,
1469 DEControllerListener *listener)
1471 RemoveListenerClosure ctx;
1473 ctx.bus = controller->bus;
1474 ctx.listener = listener;
1476 notify_mouse_listener (controller, listener, FALSE);
1478 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1479 remove_listener_cb, &ctx);
1480 if (!controller->mouse_listeners)
1481 have_mouse_listener = FALSE;
1485 spi_deregister_controller_key_listener (SpiDEController *controller,
1486 DEControllerKeyListener *key_listener)
1488 RemoveListenerClosure ctx;
1490 ctx.bus = controller->bus;
1491 ctx.listener = (DEControllerListener *) spi_key_listener_clone (key_listener);
1493 notify_keystroke_listener (controller, key_listener, FALSE);
1495 /* special case, copy keyset from existing controller list entry */
1496 if (g_slist_length(key_listener->keys) == 0)
1498 spi_re_entrant_list_foreach (&controller->key_listeners,
1499 copy_key_listener_cb, &ctx);
1502 spi_controller_deregister_global_keygrabs (controller, key_listener);
1504 spi_re_entrant_list_foreach (&controller->key_listeners,
1505 remove_listener_cb, &ctx);
1507 spi_key_listener_clone_free ((DEControllerKeyListener *) ctx.listener);
1511 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1515 for (l = controller->mouse_listeners; l; l = tmp)
1517 DEControllerListener *listener = l->data;
1519 if (!strcmp (listener->bus_name, bus_name))
1521 spi_controller_deregister_device_listener (controller, listener);
1522 tmp = controller->mouse_listeners;
1525 for (l = controller->key_listeners; l; l = tmp)
1527 DEControllerKeyListener *key_listener = l->data;
1529 if (!strcmp (key_listener->listener.bus_name, bus_name))
1531 /* TODO: untangle the below line(s) */
1532 spi_deregister_controller_key_listener (controller, key_listener);
1533 tmp = controller->key_listeners;
1539 * DBus Accessibility::DEController::DeregisterKeystrokeListener
1540 * method implementation
1542 static DBusMessage *
1543 impl_deregister_keystroke_listener (DBusConnection *bus,
1544 DBusMessage *message,
1547 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1548 DEControllerKeyListener *key_listener;
1549 DBusMessageIter iter, iter_array;
1551 GSList *keys = NULL;
1552 dbus_int32_t mask, type;
1553 DBusMessage *reply = NULL;
1555 dbus_message_iter_init(message, &iter);
1556 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu") != 0)
1558 g_warning ("Received DeregisterKeystrokeListener with strange signature '%s'", dbus_message_get_signature (message));
1559 return invalid_arguments_error (message);
1562 dbus_message_iter_get_basic(&iter, &path);
1563 dbus_message_iter_next(&iter);
1564 dbus_message_iter_recurse(&iter, &iter_array);
1565 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1567 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1570 if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
1574 kd->keystring = g_strdup (keystring);
1575 keys = g_slist_append(keys, kd);
1577 dbus_message_iter_next(&iter);
1578 dbus_message_iter_get_basic(&iter, &mask);
1579 dbus_message_iter_next(&iter);
1580 dbus_message_iter_get_basic(&iter, &type);
1581 dbus_message_iter_next(&iter);
1582 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1583 #ifdef SPI_DEREGISTER_DEBUG
1584 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1585 (void *) l, (unsigned long) mask->value);
1588 spi_deregister_controller_key_listener (controller, key_listener);
1590 spi_dec_listener_free ((DEControllerListener *) key_listener);
1591 reply = dbus_message_new_method_return (message);
1596 * DBus Accessibility::DEController::DeregisterDeviceEventListener
1597 * method implementation
1599 static DBusMessage *
1600 impl_deregister_device_event_listener (DBusConnection *bus,
1601 DBusMessage *message,
1604 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1605 DEControllerListener *listener;
1607 dbus_int32_t event_types;
1608 DBusMessage *reply = NULL;
1610 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1612 return invalid_arguments_error (message);
1614 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1615 spi_controller_deregister_device_listener (
1616 controller, listener);
1617 reply = dbus_message_new_method_return (message);
1621 static DBusMessage *
1622 impl_get_keystroke_listeners (DBusConnection *bus,
1623 DBusMessage *message,
1626 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1627 DBusMessageIter iter, iter_array;
1628 DBusMessage *reply = dbus_message_new_method_return (message);
1634 dbus_message_iter_init_append (reply, &iter);
1635 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1636 "(souua(iisi)u(bbb))", &iter_array);
1637 for (l = controller->key_listeners; l; l = l->next)
1639 append_keystroke_listener (&iter_array, l->data);
1641 dbus_message_iter_close_container (&iter, &iter_array);
1645 static DBusMessage *
1646 impl_get_device_event_listeners (DBusConnection *bus,
1647 DBusMessage *message,
1650 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1651 DBusMessageIter iter, iter_array;
1653 DBusMessage *reply = dbus_message_new_method_return (message);
1658 dbus_message_iter_init_append (reply, &iter);
1659 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1660 "(sou)", &iter_array);
1661 for (l = controller->key_listeners; l; l = l->next)
1663 append_mouse_listener (&iter_array, l->data);
1665 dbus_message_iter_close_container (&iter, &iter_array);
1670 get_modifier_state (SpiDEController *controller)
1672 return mouse_mask_state;
1676 spi_dec_synth_keysym (SpiDEController *controller, long keysym)
1678 long key_synth_code;
1679 unsigned int modifiers, synth_mods, lock_mods;
1681 key_synth_code = spi_dec_plat_get_keycode (controller, keysym, NULL, TRUE, &synth_mods);
1683 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1685 /* TODO: set the modifiers accordingly! */
1686 modifiers = get_modifier_state (controller);
1687 /* side-effect; we may unset mousebutton modifiers here! */
1690 if (synth_mods != modifiers) {
1691 lock_mods = synth_mods & ~modifiers;
1692 spi_dec_plat_lock_modifiers (controller, lock_mods);
1694 spi_dec_plat_synth_keycode_press (controller, key_synth_code);
1695 spi_dec_plat_synth_keycode_release (controller, key_synth_code);
1697 if (synth_mods != modifiers)
1698 spi_dec_plat_unlock_modifiers (controller, lock_mods);
1705 * DBus Accessibility::DEController::RegisterKeystrokeListener
1706 * method implementation
1708 static DBusMessage *
1709 impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1711 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1712 dbus_int32_t keycode;
1714 dbus_uint32_t synth_type;
1715 DBusMessage *reply = NULL;
1717 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
1719 return invalid_arguments_error (message);
1723 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1724 (long) keycode, (int) synth_type);
1726 /* TODO: hide/wrap/remove X dependency */
1729 * TODO: when initializing, query for XTest extension before using,
1730 * and fall back to XSendEvent() if XTest is not available.
1735 case Accessibility_KEY_PRESS:
1736 spi_dec_plat_synth_keycode_press (controller, keycode);
1738 case Accessibility_KEY_PRESSRELEASE:
1739 spi_dec_plat_synth_keycode_press (controller, keycode);
1740 case Accessibility_KEY_RELEASE:
1741 spi_dec_plat_synth_keycode_release (controller, keycode);
1743 case Accessibility_KEY_SYM:
1744 #ifdef SPI_XKB_DEBUG
1745 fprintf (stderr, "KeySym synthesis\n");
1748 * note: we are using long for 'keycode'
1749 * in our arg list; it can contain either
1750 * a keycode or a keysym.
1752 spi_dec_synth_keysym (controller, (KeySym) keycode);
1754 case Accessibility_KEY_STRING:
1755 if (!spi_dec_plat_synth_keystring (controller, synth_type, keycode, keystring))
1756 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
1760 reply = dbus_message_new_method_return (message);
1764 /* Accessibility::DEController::GenerateMouseEvent */
1765 static DBusMessage *
1766 impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1771 DBusMessage *reply = NULL;
1773 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
1775 return invalid_arguments_error (message);
1779 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1780 eventName, (long int) x, (long int) y);
1782 spi_dec_plat_generate_mouse_event (saved_controller, x, y, eventName);
1783 reply = dbus_message_new_method_return (message);
1787 /* Accessibility::DEController::NotifyListenersSync */
1788 static DBusMessage *
1789 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
1791 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1792 Accessibility_DeviceEvent event;
1794 DBusMessage *reply = NULL;
1796 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1798 return invalid_arguments_error (message);
1801 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1802 controller, (int) event.id);
1804 ret = spi_controller_notify_keylisteners (controller,
1805 (Accessibility_DeviceEvent *)
1808 reply = dbus_message_new_method_return (message);
1811 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1816 static DBusMessage *
1817 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
1819 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1820 Accessibility_DeviceEvent event;
1821 DBusMessage *reply = NULL;
1823 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1825 return invalid_arguments_error (message);
1828 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
1829 controller, (int) event.id);
1831 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
1833 reply = dbus_message_new_method_return (message);
1838 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1840 GObjectClass * object_class = (GObjectClass *) klass;
1842 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1844 object_class->finalize = spi_device_event_controller_object_finalize;
1847 if (g_getenv ("DISPLAY"))
1848 spi_dec_setup_x11 (klass);
1851 g_type_class_add_private (object_class, sizeof (long)); /* dummy */
1855 spi_device_event_controller_init (SpiDEController *device_event_controller)
1857 SpiDEControllerClass *klass;
1858 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (device_event_controller);
1860 /* TODO: shouldn't be gpointer below */
1861 device_event_controller->priv = G_TYPE_INSTANCE_GET_PRIVATE (device_event_controller,
1862 SPI_DEVICE_EVENT_CONTROLLER_TYPE,
1864 device_event_controller->message_queue = g_queue_new ();
1865 saved_controller = device_event_controller;
1867 if (klass->plat.init)
1868 klass->plat.init (device_event_controller);
1872 /*---------------------------------------------------------------------------*/
1874 static const char *introspection_header =
1875 "<?xml version=\"1.0\"?>\n";
1877 static const char *introspection_node_element =
1878 "<node name=\"%s\">\n";
1880 static const char *introspection_footer =
1883 static DBusMessage *
1884 impl_Introspect (DBusConnection * bus,
1885 DBusMessage * message, void *user_data)
1890 const gchar *pathstr = SPI_DBUS_PATH_DEC;
1894 output = g_string_new(introspection_header);
1896 g_string_append_printf(output, introspection_node_element, pathstr);
1898 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
1900 g_string_append(output, introspection_footer);
1901 final = g_string_free(output, FALSE);
1903 reply = dbus_message_new_method_return (message);
1904 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
1910 /*---------------------------------------------------------------------------*/
1913 handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
1915 const gchar *iface = dbus_message_get_interface (message);
1916 const gchar *member = dbus_message_get_member (message);
1917 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1918 DBusMessage *reply = NULL;
1920 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
1922 result = DBUS_HANDLER_RESULT_HANDLED;
1923 if (!strcmp (member, "RegisterKeystrokeListener"))
1924 reply = impl_register_keystroke_listener (bus, message, user_data);
1925 else if (!strcmp (member, "RegisterDeviceEventListener"))
1926 reply = impl_register_device_event_listener (bus, message, user_data);
1927 else if (!strcmp (member, "DeregisterKeystrokeListener"))
1928 reply = impl_deregister_keystroke_listener (bus, message, user_data);
1929 else if (!strcmp (member, "DeregisterDeviceEventListener"))
1930 reply = impl_deregister_device_event_listener (bus, message, user_data);
1931 else if (!strcmp (member, "GetKeystrokeListeners"))
1932 reply = impl_get_keystroke_listeners (bus, message, user_data);
1933 else if (!strcmp (member, "GetDeviceEventListeners"))
1934 reply = impl_get_device_event_listeners (bus, message, user_data);
1935 else if (!strcmp (member, "GenerateKeyboardEvent"))
1936 reply = impl_generate_keyboard_event (bus, message, user_data);
1937 else if (!strcmp (member, "GenerateMouseEvent"))
1938 reply = impl_generate_mouse_event (bus, message, user_data);
1939 else if (!strcmp (member, "NotifyListenersSync"))
1940 reply = impl_notify_listeners_sync (bus, message, user_data);
1941 else if (!strcmp (member, "NotifyListenersAsync"))
1942 reply = impl_notify_listeners_async (bus, message, user_data);
1944 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1947 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
1949 result = DBUS_HANDLER_RESULT_HANDLED;
1950 if (!strcmp (member, "Introspect"))
1951 reply = impl_Introspect (bus, message, user_data);
1953 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1956 if (result == DBUS_HANDLER_RESULT_HANDLED)
1960 reply = dbus_message_new_method_return (message);
1963 dbus_connection_send (bus, reply, NULL);
1964 dbus_message_unref (reply);
1969 message_queue_dispatch (gpointer data)
1971 saved_controller->message_queue_idle = 0;
1972 while (!g_queue_is_empty (saved_controller->message_queue))
1974 DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
1975 data = g_queue_pop_head (saved_controller->message_queue);
1976 handle_dec_method_from_idle (saved_controller->bus, message, data);
1977 dbus_message_unref (message);
1982 static DBusHandlerResult
1983 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
1985 const gchar *iface = dbus_message_get_interface (message);
1986 const gchar *member = dbus_message_get_member (message);
1987 const gint type = dbus_message_get_type (message);
1989 /* Check for basic reasons not to handle */
1990 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
1993 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1995 dbus_message_ref (message);
1996 g_queue_push_tail (saved_controller->message_queue, message);
1997 g_queue_push_tail (saved_controller->message_queue, user_data);
1998 if (!saved_controller->message_queue_idle) {
1999 saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2000 g_source_set_name_by_id (saved_controller->message_queue_idle, "[at-spi2-core] message_queue_dispatch");
2002 return DBUS_HANDLER_RESULT_HANDLED;
2005 static DBusObjectPathVTable dec_vtable =
2009 NULL, NULL, NULL, NULL
2013 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2015 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2017 dec->registry = g_object_ref (reg);
2018 reg->dec = g_object_ref (dec);
2021 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2027 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2029 if (!have_mouse_event_listener)
2031 have_mouse_event_listener = TRUE;
2032 if (!have_mouse_listener) {
2034 id = g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2035 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
2041 spi_device_event_controller_stop_poll_mouse (void)
2043 have_mouse_event_listener = FALSE;