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"
47 #include "event-source.h"
50 #include "deviceeventcontroller.h"
51 #include "reentrant-list.h"
53 #include "introspection.h"
55 #define CHECK_RELEASE_DELAY 20
56 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
57 static SpiDEController *saved_controller;
59 /* Our parent Gtk object type */
60 #define PARENT_TYPE G_TYPE_OBJECT
62 /* A pointer to our parent object class */
63 static int spi_error_code = 0;
68 typedef struct _SpiPoint SpiPoint;
69 static unsigned int mouse_mask_state = 0;
71 static unsigned int key_modifier_mask =
72 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
73 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
75 static unsigned int key_modifier_mask = 255;
76 static unsigned int _numlock_physical_mask = (1<<4);
79 static gboolean have_mouse_listener = FALSE;
80 static gboolean have_mouse_event_listener = FALSE;
85 guint pending_add : 1;
86 guint pending_remove : 1;
88 Accessibility_ControllerEventMask mod_mask;
89 dbus_uint32_t key_val; /* KeyCode */
90 } DEControllerGrabMask;
93 gboolean spi_controller_update_key_grabs (SpiDEController *controller,
94 Accessibility_DeviceEvent *recv);
96 static gboolean eventtype_seq_contains_event (dbus_uint32_t types,
97 const Accessibility_DeviceEvent *event);
98 static gboolean spi_dec_poll_mouse_moving (gpointer data);
99 static gboolean spi_dec_poll_mouse_idle (gpointer data);
101 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
104 spi_dec_plat_get_keycode (SpiDEController *controller,
110 SpiDEControllerClass *klass;
111 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
112 if (klass->plat.get_keycode)
113 return klass->plat.get_keycode (controller, keysym, key_str, fix, modmask);
119 spi_dec_plat_mouse_check (SpiDEController *controller,
120 int *x, int *y, gboolean *moved)
122 SpiDEControllerClass *klass;
123 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
124 if (klass->plat.mouse_check)
125 return klass->plat.mouse_check (controller, x, y, moved);
131 spi_dec_plat_grab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
133 SpiDEControllerClass *klass;
134 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
135 if (klass->plat.grab_key)
136 return klass->plat.grab_key (controller, key_val, mod_mask);
142 spi_dec_plat_ungrab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
144 SpiDEControllerClass *klass;
145 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
146 if (klass->plat.ungrab_key)
147 klass->plat.ungrab_key (controller, key_val, mod_mask);
151 spi_dec_plat_synth_keycode_press (SpiDEController *controller,
152 unsigned int keycode)
154 SpiDEControllerClass *klass;
155 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
156 if (klass->plat.synth_keycode_press)
157 return klass->plat.synth_keycode_press (controller, keycode);
163 spi_dec_plat_synth_keycode_release (SpiDEController *controller,
164 unsigned int keycode)
166 SpiDEControllerClass *klass;
167 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
168 if (klass->plat.synth_keycode_release)
169 return klass->plat.synth_keycode_release (controller, keycode);
175 spi_dec_plat_lock_modifiers (SpiDEController *controller, unsigned modifiers)
177 SpiDEControllerClass *klass;
178 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
179 if (klass->plat.lock_modifiers)
180 return klass->plat.lock_modifiers (controller, modifiers);
186 spi_dec_plat_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
188 SpiDEControllerClass *klass;
189 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
190 if (klass->plat.unlock_modifiers)
191 return klass->plat.unlock_modifiers (controller, modifiers);
197 spi_dec_plat_synth_keystring (SpiDEController *controller, guint synth_type, gint keycode, const char *keystring)
199 SpiDEControllerClass *klass;
200 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
201 if (klass->plat.synth_keystring)
202 return klass->plat.synth_keystring (controller, synth_type, keycode, keystring);
208 spi_dec_plat_emit_modifier_event (SpiDEController *controller, guint prev_mask,
211 SpiDEControllerClass *klass;
212 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
213 if (klass->plat.emit_modifier_event)
214 return klass->plat.emit_modifier_event (controller, prev_mask, current_mask);
218 spi_dec_plat_generate_mouse_event (SpiDEController *controller,
221 const char *eventName)
223 SpiDEControllerClass *klass;
224 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
225 if (klass->plat.generate_mouse_event)
226 return klass->plat.generate_mouse_event (controller, x, y, eventName);
230 invalid_arguments_error (DBusMessage *message)
235 errmsg= g_strdup_printf (
236 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
237 dbus_message_get_member (message),
238 dbus_message_get_signature (message),
239 dbus_message_get_interface (message));
240 reply = dbus_message_new_error (message,
241 DBUS_ERROR_INVALID_ARGS,
247 /* Private methods */
249 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
251 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
255 dbus_error_init (&error);
256 dbus_bus_add_match (bus, match, &error);
258 if (dbus_error_is_set (&error))
260 dbus_error_free (&error);
272 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
274 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
278 dbus_error_init (&error);
279 dbus_bus_remove_match (bus, match, &error);
281 if (dbus_error_is_set (&error))
283 dbus_error_free (&error);
294 static DEControllerGrabMask *
295 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
297 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
299 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
301 clone->ref_count = 1;
302 clone->pending_add = TRUE;
303 clone->pending_remove = FALSE;
309 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
315 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
317 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
318 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
326 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
331 spi_dec_dbus_emit (SpiDEController *controller, const char *interface,
332 const char *name, const char *minor, int a1, int a2)
334 DBusMessage *signal = NULL;
335 DBusMessageIter iter, iter_struct, iter_variant;
337 const char *path = SPI_DBUS_PATH_ROOT;
338 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
340 signal = dbus_message_new_signal (path, interface, name);
342 dbus_message_iter_init_append (signal, &iter);
344 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
345 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a1);
346 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a2);
347 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
348 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
349 dbus_message_iter_close_container (&iter, &iter_variant);
351 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
353 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
354 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
355 dbus_message_iter_close_container (&iter, &iter_struct);
357 dbus_connection_send (controller->bus, signal, NULL);
358 dbus_message_unref (signal);
362 spi_dec_poll_mouse_moved (gpointer data)
364 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
369 mask_return = spi_dec_plat_mouse_check (controller, &x, &y, &moved);
371 if ((mask_return & key_modifier_mask) !=
372 (mouse_mask_state & key_modifier_mask))
374 spi_dec_plat_emit_modifier_event (controller, mouse_mask_state, mask_return);
375 mouse_mask_state = mask_return;
382 spi_dec_poll_mouse_idle (gpointer data)
384 if (!have_mouse_event_listener && !have_mouse_listener)
386 else if (!spi_dec_poll_mouse_moved (data))
391 id = g_timeout_add (20, spi_dec_poll_mouse_moving, data);
392 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_moving");
398 spi_dec_poll_mouse_moving (gpointer data)
400 if (!have_mouse_event_listener && !have_mouse_listener)
402 else if (spi_dec_poll_mouse_moved (data))
407 id = g_timeout_add (100, spi_dec_poll_mouse_idle, data);
408 g_source_set_name_by_id (id, "[at-spi2-core] check_release");
414 * Eventually we can use this to make the marshalling of mask types
415 * more sane, but for now we just use this to detect
416 * the use of 'virtual' masks such as numlock and convert them to
417 * system-specific mask values (i.e. ModMask).
420 static Accessibility_ControllerEventMask
421 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
423 Accessibility_ControllerEventMask tmp_mask;
424 gboolean has_numlock;
426 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
430 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
431 tmp_mask |= _numlock_physical_mask;
437 static DEControllerKeyListener *
438 spi_dec_key_listener_new (const char *bus_name,
441 const Accessibility_ControllerEventMask mask,
442 const dbus_uint32_t types,
443 const Accessibility_EventListenerMode *mode)
445 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
446 key_listener->listener.bus_name = g_strdup(bus_name);
447 key_listener->listener.path = g_strdup(path);
448 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
449 key_listener->keys = keys;
450 key_listener->mask = spi_dec_translate_mask (mask);
451 key_listener->listener.types = types;
454 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
455 memcpy(key_listener->mode, mode, sizeof(*mode));
458 key_listener->mode = NULL;
461 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
462 (unsigned int) key_listener->mask,
463 (int) (mode ? mode->global : 0),
464 (void *) key_listener->keys,
465 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
471 static DEControllerListener *
472 spi_dec_listener_new (const char *bus_name,
476 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
477 listener->bus_name = g_strdup(bus_name);
478 listener->path = g_strdup(path);
479 listener->type = SPI_DEVICE_TYPE_MOUSE;
480 listener->types = types;
484 static DEControllerListener *
485 spi_listener_clone (DEControllerListener *listener)
487 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
488 clone->bus_name = g_strdup (listener->bus_name);
489 clone->path = g_strdup (listener->path);
490 clone->type = listener->type;
491 clone->types = listener->types;
495 static GSList *keylist_clone (GSList *s)
500 for (l = s; l; l = g_slist_next(l))
502 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
505 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
506 kd->keycode = kds->keycode;
507 kd->keysym = kds->keysym;
508 kd->keystring = g_strdup(kds->keystring);
509 d = g_slist_append(d, kd);
515 static DEControllerKeyListener *
516 spi_key_listener_clone (DEControllerKeyListener *key_listener)
518 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
519 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
520 clone->listener.path = g_strdup (key_listener->listener.path);
521 clone->listener.type = SPI_DEVICE_TYPE_KBD;
522 clone->keys = keylist_clone (key_listener->keys);
523 clone->mask = key_listener->mask;
524 clone->listener.types = key_listener->listener.types;
525 if (key_listener->mode)
527 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
528 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
535 static void keylist_free(GSList *keys)
539 for (l = keys; l; l = g_slist_next(l))
541 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
542 g_free(kd->keystring);
549 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
551 keylist_free(key_listener->keys);
552 if (key_listener->mode) g_free(key_listener->mode);
553 g_free (key_listener->listener.bus_name);
554 g_free (key_listener->listener.path);
555 g_free (key_listener);
559 spi_key_listener_clone_free (DEControllerKeyListener *clone)
561 spi_key_listener_data_free (clone);
565 spi_listener_clone_free (DEControllerListener *clone)
567 g_free (clone->path);
568 g_free (clone->bus_name);
573 spi_dec_listener_free (DEControllerListener *listener)
575 if (listener->type == SPI_DEVICE_TYPE_KBD)
576 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
579 g_free (listener->bus_name);
580 g_free (listener->path);
585 _register_keygrab (SpiDEController *controller,
586 DEControllerGrabMask *grab_mask)
590 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
591 spi_grab_mask_compare_values);
594 DEControllerGrabMask *cur_mask = l->data;
596 cur_mask->ref_count++;
597 if (cur_mask->pending_remove)
599 cur_mask->pending_remove = FALSE;
604 controller->keygrabs_list =
605 g_list_prepend (controller->keygrabs_list,
606 spi_grab_mask_clone (grab_mask));
611 _deregister_keygrab (SpiDEController *controller,
612 DEControllerGrabMask *grab_mask)
616 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
617 spi_grab_mask_compare_values);
621 DEControllerGrabMask *cur_mask = l->data;
623 cur_mask->ref_count--;
624 if (cur_mask->ref_count <= 0)
626 cur_mask->pending_remove = TRUE;
632 handle_keygrab (SpiDEController *controller,
633 DEControllerKeyListener *key_listener,
634 void (*process_cb) (SpiDEController *controller,
635 DEControllerGrabMask *grab_mask))
637 DEControllerGrabMask grab_mask = { 0 };
639 grab_mask.mod_mask = key_listener->mask;
640 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
643 grab_mask.key_val = AnyKey;
645 grab_mask.key_val = 0L;
649 fprintf (stderr, "AnyKey grab!");
651 process_cb (controller, &grab_mask);
657 for (l = key_listener->keys; l; l = g_slist_next(l))
659 Accessibility_KeyDefinition *keydef = l->data;
661 key_val = spi_dec_plat_get_keycode (controller, keydef->keysym, keydef->keystring, FALSE, NULL);
663 key_val = keydef->keycode;
664 grab_mask.key_val = key_val;
665 process_cb (controller, &grab_mask);
671 spi_controller_register_global_keygrabs (SpiDEController *controller,
672 DEControllerKeyListener *key_listener)
674 handle_keygrab (controller, key_listener, _register_keygrab);
675 return spi_controller_update_key_grabs (controller, NULL);
679 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
680 DEControllerKeyListener *key_listener)
682 handle_keygrab (controller, key_listener, _deregister_keygrab);
683 spi_controller_update_key_grabs (controller, NULL);
687 append_keystroke_listener (DBusMessageIter *iter, DEControllerKeyListener *listener)
689 dbus_uint32_t d_uint;
690 DBusMessageIter iter_struct, iter_subarray, iter_substruct;
693 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
697 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
698 &listener->listener.bus_name);
699 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
700 &listener->listener.path);
701 d_uint = listener->listener.type;
702 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
703 d_uint = listener->listener.types;
704 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
705 if (!dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_ARRAY,
706 "(iisi)", &iter_subarray))
708 dbus_message_iter_close_container (iter, &iter_struct);
711 for (kl = listener->keys; kl; kl = kl->next)
713 Accessibility_KeyDefinition *kd = kl->data;
714 if (!dbus_message_iter_open_container (&iter_subarray, DBUS_TYPE_STRUCT,
715 NULL, &iter_substruct))
717 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keycode);
718 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keysym);
719 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_STRING, &kd->keystring);
720 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->unused);
721 dbus_message_iter_close_container (&iter_subarray, &iter_substruct);
723 dbus_message_iter_close_container (&iter_struct, &iter_subarray);
724 d_uint = listener->mask;
725 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
726 if (dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_STRUCT,
727 NULL, &iter_substruct))
731 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
732 &listener->mode->synchronous);
733 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
734 &listener->mode->preemptive);
735 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
736 &listener->mode->global);
740 dbus_bool_t dummy_val = FALSE;
741 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
743 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
745 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
748 dbus_message_iter_close_container (&iter_struct, &iter_substruct);
750 dbus_message_iter_close_container (iter, &iter_struct);
754 notify_keystroke_listener (SpiDEController *controller,
755 DEControllerKeyListener *listener,
758 const char *path = SPI_DBUS_PATH_DEC;
759 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
760 const char *name = (enable
761 ? "KeystrokeListenerRegistered"
762 : "KeystrokeListenerDeregistered");
764 DBusMessageIter iter;
766 signal = dbus_message_new_signal (path, interface, name);
769 dbus_message_iter_init_append (signal, &iter);
770 append_keystroke_listener (&iter, listener);
771 dbus_connection_send (controller->bus, signal, NULL);
772 dbus_message_unref (signal);
776 append_mouse_listener (DBusMessageIter *iter, DEControllerListener *listener)
778 DBusMessageIter iter_struct;
779 dbus_uint32_t d_uint;
781 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
784 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
785 &listener->bus_name);
786 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
788 d_uint = listener->types;
789 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
790 dbus_message_iter_close_container (iter, &iter_struct);
794 notify_mouse_listener (SpiDEController *controller,
795 DEControllerListener *listener,
798 const char *path = SPI_DBUS_PATH_DEC;
799 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
800 const char *name = (enable
801 ? "DeviceListenerRegistered"
802 : "DeviceListenerDeregistered");
804 DBusMessageIter iter;
806 signal = dbus_message_new_signal (path, interface, name);
809 dbus_message_iter_init_append (signal, &iter);
810 append_mouse_listener (&iter, listener);
811 dbus_connection_send (controller->bus, signal, NULL);
812 dbus_message_unref (signal);
816 spi_controller_register_device_listener (SpiDEController *controller,
817 DEControllerListener *listener)
819 DEControllerKeyListener *key_listener;
822 switch (listener->type) {
823 case SPI_DEVICE_TYPE_KBD:
824 key_listener = (DEControllerKeyListener *) listener;
826 controller->key_listeners = g_list_prepend (controller->key_listeners,
828 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
829 if (key_listener->mode->global)
831 retval = spi_controller_register_global_keygrabs (controller, key_listener);
836 notify_keystroke_listener (controller, key_listener, TRUE);
838 case SPI_DEVICE_TYPE_MOUSE:
839 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
840 if (!have_mouse_listener)
842 have_mouse_listener = TRUE;
843 if (!have_mouse_event_listener) {
845 id = g_timeout_add (100, spi_dec_poll_mouse_idle, controller);
846 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
849 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
850 notify_mouse_listener (controller, listener, TRUE);
859 set_reply (DBusPendingCall *pending, void *user_data)
861 void **replyptr = (void **)user_data;
863 *replyptr = dbus_pending_call_steal_reply (pending);
866 static GSList *hung_processes = NULL;
869 reset_hung_process (DBusPendingCall *pending, void *data)
871 DBusMessage *message = data;
872 const char *dest = dbus_message_get_destination (message);
875 /* At this point we don't care about the result */
876 dbus_pending_call_unref (pending);
878 for (l = hung_processes; l; l = l->next)
880 if (!strcmp (l->data, dest))
883 hung_processes = g_slist_remove (hung_processes, l->data);
890 time_elapsed (struct timeval *origin)
894 gettimeofday (&tv, NULL);
895 return (tv.tv_sec - origin->tv_sec) * 1000 + (tv.tv_usec - origin->tv_usec) / 1000;
899 reset_hung_process_from_ping (DBusPendingCall *pending, void *data)
903 for (l = hung_processes; l; l = l->next)
905 if (!strcmp (l->data, data))
908 hung_processes = g_slist_remove (hung_processes, l->data);
913 dbus_pending_call_unref (pending);
917 send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, int timeout, DBusError *error)
919 DBusPendingCall *pending;
920 DBusMessage *reply = NULL;
923 if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
927 dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
928 gettimeofday (&tv, NULL);
931 if (!dbus_connection_read_write_dispatch (bus, timeout) ||
932 time_elapsed (&tv) > timeout)
934 const char *dest = dbus_message_get_destination (message);
937 dbus_message_ref (message);
938 dbus_pending_call_set_notify (pending, reset_hung_process, message,
939 (DBusFreeFunction) dbus_message_unref);
940 message = dbus_message_new_method_call (dest, "/",
941 "org.freedesktop.DBus.Peer",
945 dbus_connection_send_with_reply (bus, message, &pending, -1);
946 dbus_message_unref (message);
949 bus_name_dup = g_strdup (dest);
950 dbus_pending_call_set_notify (pending, reset_hung_process_from_ping,
952 for (l = hung_processes; l; l = l->next)
953 if (!strcmp (l->data, dest))
955 hung_processes = g_slist_prepend (hung_processes, g_strdup (dest));
959 dbus_pending_call_unref (pending);
963 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
964 SpiRegistry *registry,
965 DEControllerListener *listener,
966 const Accessibility_DeviceEvent *key_event)
968 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
970 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
972 dbus_bool_t consumed = FALSE;
974 gboolean hung = FALSE;
976 for (l = hung_processes; l; l = l->next)
978 if (!strcmp (l->data, listener->bus_name))
980 dbus_message_set_no_reply (message, TRUE);
986 if (spi_dbus_marshal_deviceEvent(message, key_event))
992 dbus_connection_send (controller->bus, message, NULL);
993 dbus_message_unref (message);
997 reply = send_and_allow_reentry (controller->bus, message, 3000, NULL);
1000 dbus_message_get_args(reply, NULL, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1001 dbus_message_unref(reply);
1004 dbus_message_unref(message);
1009 spi_controller_notify_mouselisteners (SpiDEController *controller,
1010 const Accessibility_DeviceEvent *event)
1013 GSList *notify = NULL, *l2;
1014 GList **listeners = &controller->mouse_listeners;
1015 gboolean is_consumed;
1016 #ifdef SPI_KEYEVENT_DEBUG
1017 gboolean found = FALSE;
1024 for (l = *listeners; l; l = l->next)
1026 DEControllerListener *listener = l->data;
1028 if (eventtype_seq_contains_event (listener->types, event))
1030 /* we clone (don't dup) the listener, to avoid refcount inc. */
1031 notify = g_slist_prepend (notify,
1032 spi_listener_clone (listener));
1033 #ifdef SPI_KEYEVENT_DEBUG
1039 #ifdef SPI_KEYEVENT_DEBUG
1042 g_print ("no match for event\n");
1046 is_consumed = FALSE;
1047 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1049 DEControllerListener *listener = l2->data;
1051 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1053 spi_listener_clone_free ((DEControllerListener *) l2->data);
1056 for (; l2; l2 = l2->next)
1058 DEControllerListener *listener = l2->data;
1059 spi_listener_clone_free (listener);
1060 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1063 g_slist_free (notify);
1066 if (is_consumed) g_message ("consumed\n");
1072 key_set_contains_key (GSList *key_set,
1073 const Accessibility_DeviceEvent *key_event)
1082 g_print ("null key set!\n");
1087 len = g_slist_length (key_set);
1089 if (len == 0) /* special case, means "all keys/any key" */
1092 g_print ("anykey\n");
1097 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1099 Accessibility_KeyDefinition *kd = l->data;
1100 #ifdef SPI_KEYEVENT_DEBUG
1101 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1105 (int) key_event->id,
1106 (int) key_event->hw_code,
1107 key_event->event_string);
1109 if (kd->keysym == (dbus_uint32_t) key_event->id)
1113 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1117 if (key_event->event_string && key_event->event_string[0] &&
1118 !strcmp (kd->keystring, key_event->event_string))
1128 eventtype_seq_contains_event (dbus_uint32_t types,
1129 const Accessibility_DeviceEvent *event)
1131 if (types == 0) /* special case, means "all events/any event" */
1136 return (types & (1 << event->type));
1140 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1141 DEControllerKeyListener *listener,
1142 dbus_bool_t is_system_global)
1144 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1145 key_set_contains_key (listener->keys, key_event) &&
1146 eventtype_seq_contains_event (listener->listener.types, key_event) &&
1147 (is_system_global == listener->mode->global))
1158 spi_controller_notify_keylisteners (SpiDEController *controller,
1159 Accessibility_DeviceEvent *key_event,
1160 dbus_bool_t is_system_global)
1163 GSList *notify = NULL, *l2;
1164 GList **key_listeners = &controller->key_listeners;
1165 gboolean is_consumed;
1172 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1173 if (key_event->modifiers & _numlock_physical_mask)
1174 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1176 for (l = *key_listeners; l; l = l->next)
1178 DEControllerKeyListener *key_listener = l->data;
1180 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1182 /* we clone (don't dup) the listener, to avoid refcount inc. */
1183 notify = g_slist_prepend (notify,
1184 spi_key_listener_clone (key_listener));
1188 #ifdef SPI_KEYEVENT_DEBUG
1191 g_print ("no match for event\n");
1195 is_consumed = FALSE;
1196 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1198 DEControllerKeyListener *key_listener = l2->data;
1200 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1201 key_listener->mode->preemptive;
1203 spi_key_listener_clone_free (key_listener);
1206 for (; l2; l2 = l2->next)
1208 DEControllerKeyListener *key_listener = l2->data;
1209 spi_key_listener_clone_free (key_listener);
1210 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1213 g_slist_free (notify);
1216 if (is_consumed) g_message ("consumed\n");
1222 spi_clear_error_state (void)
1224 gboolean retval = spi_error_code != 0;
1230 spi_controller_update_key_grabs (SpiDEController *controller,
1231 Accessibility_DeviceEvent *recv)
1234 gboolean update_failed = FALSE;
1237 g_return_val_if_fail (controller != NULL, FALSE);
1240 * masks known to work with default RH 7.1+:
1241 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1242 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1243 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1244 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1246 * ControlMask grabs are broken, must be in use already
1249 keycode = spi_dec_plat_get_keycode (controller, recv->id, NULL, TRUE, NULL);
1250 for (l = controller->keygrabs_list; l; l = next)
1253 gboolean re_issue_grab;
1254 DEControllerGrabMask *grab_mask = l->data;
1258 re_issue_grab = recv &&
1259 (recv->modifiers & grab_mask->mod_mask) &&
1260 (grab_mask->key_val == keycode);
1263 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1264 (long int) grab_mask->key_val,
1265 (long int) grab_mask->mod_mask,
1266 grab_mask->pending_add ? '+' : '.',
1267 grab_mask->pending_remove ? '-' : '.',
1268 re_issue_grab ? "re-issue": "");
1273 if (grab_mask->pending_add && grab_mask->pending_remove)
1277 else if (grab_mask->pending_remove)
1280 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1282 spi_dec_plat_ungrab_key (controller,
1284 grab_mask->mod_mask);
1288 else if (grab_mask->pending_add || re_issue_grab)
1292 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1294 update_failed = spi_dec_plat_grab_key (controller,
1296 grab_mask->mod_mask);
1297 if (update_failed) {
1298 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1303 grab_mask->pending_add = FALSE;
1304 grab_mask->pending_remove = FALSE;
1308 g_assert (grab_mask->ref_count <= 0);
1310 controller->keygrabs_list = g_list_delete_link (
1311 controller->keygrabs_list, l);
1313 spi_grab_mask_free (grab_mask);
1318 return ! update_failed;
1322 * Implemented GObject::finalize
1325 spi_device_event_controller_object_finalize (GObject *object)
1327 SpiDEController *controller;
1328 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1329 SpiDEControllerClass *klass;
1331 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1332 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
1334 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1336 if (klass->plat.finalize)
1337 klass->plat.finalize (controller);
1339 parent_class->finalize (object);
1343 * DBus Accessibility::DEController::RegisterKeystrokeListener
1344 * method implementation
1346 static DBusMessage *
1347 impl_register_keystroke_listener (DBusConnection *bus,
1348 DBusMessage *message,
1351 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1352 DEControllerKeyListener *dec_listener;
1353 DBusMessageIter iter, iter_array;
1355 GSList *keys = NULL;
1356 dbus_int32_t mask, type;
1357 Accessibility_EventListenerMode *mode;
1359 DBusMessage *reply = NULL;
1362 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu(bbb)") != 0)
1363 return invalid_arguments_error (message);
1365 dbus_message_iter_init(message, &iter);
1366 dbus_message_iter_get_basic(&iter, &path);
1367 dbus_message_iter_next(&iter);
1368 dbus_message_iter_recurse(&iter, &iter_array);
1369 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1371 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1372 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))
1377 kd->keystring = g_strdup (keystring);
1378 keys = g_slist_append(keys, kd);
1380 dbus_message_iter_next(&iter);
1381 dbus_message_iter_get_basic(&iter, &mask);
1382 dbus_message_iter_next(&iter);
1383 dbus_message_iter_get_basic(&iter, &type);
1384 dbus_message_iter_next(&iter);
1385 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1388 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);
1391 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1392 dbus_message_get_sender(message), path, (unsigned long) mask);
1394 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1396 ret = spi_controller_register_device_listener (
1397 controller, (DEControllerListener *) dec_listener);
1398 reply = dbus_message_new_method_return (message);
1401 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1407 * DBus Accessibility::DEController::RegisterDeviceEventListener
1408 * method implementation
1410 static DBusMessage *
1411 impl_register_device_event_listener (DBusConnection *bus,
1412 DBusMessage *message,
1415 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1416 DEControllerListener *dec_listener;
1418 dbus_int32_t event_types;
1420 DBusMessage *reply = NULL;
1422 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1424 return invalid_arguments_error (message);
1426 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1427 ret = spi_controller_register_device_listener (
1428 controller, (DEControllerListener *) dec_listener);
1429 reply = dbus_message_new_method_return (message);
1432 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1438 DBusConnection *bus;
1439 DEControllerListener *listener;
1440 } RemoveListenerClosure;
1442 static SpiReEntrantContinue
1443 remove_listener_cb (GList * const *list,
1446 DEControllerListener *listener = (*list)->data;
1447 RemoveListenerClosure *ctx = user_data;
1449 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1450 !strcmp(ctx->listener->path, listener->path))
1452 spi_re_entrant_list_delete_link (list);
1453 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1454 spi_dec_listener_free (listener);
1457 return SPI_RE_ENTRANT_CONTINUE;
1460 static SpiReEntrantContinue
1461 copy_key_listener_cb (GList * const *list,
1464 DEControllerKeyListener *key_listener = (*list)->data;
1465 RemoveListenerClosure *ctx = user_data;
1467 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1468 !strcmp(ctx->listener->path, key_listener->listener.path))
1470 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1471 DEControllerKeyListener *ctx_key_listener =
1472 (DEControllerKeyListener *) ctx->listener;
1473 keylist_free (ctx_key_listener->keys);
1474 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1477 return SPI_RE_ENTRANT_CONTINUE;
1481 spi_controller_deregister_device_listener (SpiDEController *controller,
1482 DEControllerListener *listener)
1484 RemoveListenerClosure ctx;
1486 ctx.bus = controller->bus;
1487 ctx.listener = listener;
1489 notify_mouse_listener (controller, listener, FALSE);
1491 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1492 remove_listener_cb, &ctx);
1493 if (!controller->mouse_listeners)
1494 have_mouse_listener = FALSE;
1498 spi_deregister_controller_key_listener (SpiDEController *controller,
1499 DEControllerKeyListener *key_listener)
1501 RemoveListenerClosure ctx;
1503 ctx.bus = controller->bus;
1504 ctx.listener = (DEControllerListener *) spi_key_listener_clone (key_listener);
1506 notify_keystroke_listener (controller, key_listener, FALSE);
1508 /* special case, copy keyset from existing controller list entry */
1509 if (g_slist_length(key_listener->keys) == 0)
1511 spi_re_entrant_list_foreach (&controller->key_listeners,
1512 copy_key_listener_cb, &ctx);
1515 spi_controller_deregister_global_keygrabs (controller, key_listener);
1517 spi_re_entrant_list_foreach (&controller->key_listeners,
1518 remove_listener_cb, &ctx);
1520 spi_key_listener_clone_free ((DEControllerKeyListener *) ctx.listener);
1524 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1528 for (l = controller->mouse_listeners; l; l = tmp)
1530 DEControllerListener *listener = l->data;
1532 if (!strcmp (listener->bus_name, bus_name))
1534 spi_controller_deregister_device_listener (controller, listener);
1535 tmp = controller->mouse_listeners;
1538 for (l = controller->key_listeners; l; l = tmp)
1540 DEControllerKeyListener *key_listener = l->data;
1542 if (!strcmp (key_listener->listener.bus_name, bus_name))
1544 /* TODO: untangle the below line(s) */
1545 spi_deregister_controller_key_listener (controller, key_listener);
1546 tmp = controller->key_listeners;
1552 * DBus Accessibility::DEController::DeregisterKeystrokeListener
1553 * method implementation
1555 static DBusMessage *
1556 impl_deregister_keystroke_listener (DBusConnection *bus,
1557 DBusMessage *message,
1560 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1561 DEControllerKeyListener *key_listener;
1562 DBusMessageIter iter, iter_array;
1564 GSList *keys = NULL;
1565 dbus_int32_t mask, type;
1566 DBusMessage *reply = NULL;
1568 dbus_message_iter_init(message, &iter);
1569 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu") != 0)
1571 g_warning ("Received DeregisterKeystrokeListener with strange signature '%s'", dbus_message_get_signature (message));
1572 return invalid_arguments_error (message);
1575 dbus_message_iter_get_basic(&iter, &path);
1576 dbus_message_iter_next(&iter);
1577 dbus_message_iter_recurse(&iter, &iter_array);
1578 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1580 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1583 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))
1587 kd->keystring = g_strdup (keystring);
1588 keys = g_slist_append(keys, kd);
1590 dbus_message_iter_next(&iter);
1591 dbus_message_iter_get_basic(&iter, &mask);
1592 dbus_message_iter_next(&iter);
1593 dbus_message_iter_get_basic(&iter, &type);
1594 dbus_message_iter_next(&iter);
1595 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1596 #ifdef SPI_DEREGISTER_DEBUG
1597 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1598 (void *) l, (unsigned long) mask->value);
1601 spi_deregister_controller_key_listener (controller, key_listener);
1603 spi_dec_listener_free ((DEControllerListener *) key_listener);
1604 reply = dbus_message_new_method_return (message);
1609 * DBus Accessibility::DEController::DeregisterDeviceEventListener
1610 * method implementation
1612 static DBusMessage *
1613 impl_deregister_device_event_listener (DBusConnection *bus,
1614 DBusMessage *message,
1617 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1618 DEControllerListener *listener;
1620 dbus_int32_t event_types;
1621 DBusMessage *reply = NULL;
1623 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1625 return invalid_arguments_error (message);
1627 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1628 spi_controller_deregister_device_listener (
1629 controller, listener);
1630 reply = dbus_message_new_method_return (message);
1634 static DBusMessage *
1635 impl_get_keystroke_listeners (DBusConnection *bus,
1636 DBusMessage *message,
1639 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1640 DBusMessageIter iter, iter_array;
1641 DBusMessage *reply = dbus_message_new_method_return (message);
1647 dbus_message_iter_init_append (reply, &iter);
1648 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1649 "(souua(iisi)u(bbb))", &iter_array);
1650 for (l = controller->key_listeners; l; l = l->next)
1652 append_keystroke_listener (&iter_array, l->data);
1654 dbus_message_iter_close_container (&iter, &iter_array);
1658 static DBusMessage *
1659 impl_get_device_event_listeners (DBusConnection *bus,
1660 DBusMessage *message,
1663 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1664 DBusMessageIter iter, iter_array;
1666 DBusMessage *reply = dbus_message_new_method_return (message);
1671 dbus_message_iter_init_append (reply, &iter);
1672 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1673 "(sou)", &iter_array);
1674 for (l = controller->key_listeners; l; l = l->next)
1676 append_mouse_listener (&iter_array, l->data);
1678 dbus_message_iter_close_container (&iter, &iter_array);
1683 get_modifier_state (SpiDEController *controller)
1685 return mouse_mask_state;
1689 spi_dec_synth_keysym (SpiDEController *controller, long keysym)
1691 long key_synth_code;
1692 unsigned int modifiers, synth_mods, lock_mods;
1694 key_synth_code = spi_dec_plat_get_keycode (controller, keysym, NULL, TRUE, &synth_mods);
1696 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1698 /* TODO: set the modifiers accordingly! */
1699 modifiers = get_modifier_state (controller);
1700 /* side-effect; we may unset mousebutton modifiers here! */
1703 if (synth_mods != modifiers) {
1704 lock_mods = synth_mods & ~modifiers;
1705 spi_dec_plat_lock_modifiers (controller, lock_mods);
1707 spi_dec_plat_synth_keycode_press (controller, key_synth_code);
1708 spi_dec_plat_synth_keycode_release (controller, key_synth_code);
1710 if (synth_mods != modifiers)
1711 spi_dec_plat_unlock_modifiers (controller, lock_mods);
1718 * DBus Accessibility::DEController::RegisterKeystrokeListener
1719 * method implementation
1721 static DBusMessage *
1722 impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1724 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1725 dbus_int32_t keycode;
1727 dbus_uint32_t synth_type;
1728 DBusMessage *reply = NULL;
1730 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
1732 return invalid_arguments_error (message);
1736 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1737 (long) keycode, (int) synth_type);
1739 /* TODO: hide/wrap/remove X dependency */
1742 * TODO: when initializing, query for XTest extension before using,
1743 * and fall back to XSendEvent() if XTest is not available.
1748 case Accessibility_KEY_PRESS:
1749 spi_dec_plat_synth_keycode_press (controller, keycode);
1751 case Accessibility_KEY_PRESSRELEASE:
1752 spi_dec_plat_synth_keycode_press (controller, keycode);
1753 case Accessibility_KEY_RELEASE:
1754 spi_dec_plat_synth_keycode_release (controller, keycode);
1756 case Accessibility_KEY_SYM:
1757 #ifdef SPI_XKB_DEBUG
1758 fprintf (stderr, "KeySym synthesis\n");
1761 * note: we are using long for 'keycode'
1762 * in our arg list; it can contain either
1763 * a keycode or a keysym.
1766 spi_dec_synth_keysym (controller, (KeySym) keycode);
1768 spi_dec_synth_keysym (controller, (long) keycode);
1771 case Accessibility_KEY_STRING:
1772 if (!spi_dec_plat_synth_keystring (controller, synth_type, keycode, keystring))
1773 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
1777 reply = dbus_message_new_method_return (message);
1781 /* Accessibility::DEController::GenerateMouseEvent */
1782 static DBusMessage *
1783 impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1788 DBusMessage *reply = NULL;
1790 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
1792 return invalid_arguments_error (message);
1796 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1797 eventName, (long int) x, (long int) y);
1799 spi_dec_plat_generate_mouse_event (saved_controller, x, y, eventName);
1800 reply = dbus_message_new_method_return (message);
1804 /* Accessibility::DEController::NotifyListenersSync */
1805 static DBusMessage *
1806 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
1808 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1809 Accessibility_DeviceEvent event;
1811 DBusMessage *reply = NULL;
1813 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1815 return invalid_arguments_error (message);
1818 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1819 controller, (int) event.id);
1821 ret = spi_controller_notify_keylisteners (controller,
1822 (Accessibility_DeviceEvent *)
1825 reply = dbus_message_new_method_return (message);
1828 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1833 static DBusMessage *
1834 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
1836 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1837 Accessibility_DeviceEvent event;
1838 DBusMessage *reply = NULL;
1840 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1842 return invalid_arguments_error (message);
1845 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
1846 controller, (int) event.id);
1848 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
1850 reply = dbus_message_new_method_return (message);
1855 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1857 GObjectClass * object_class = (GObjectClass *) klass;
1859 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1861 object_class->finalize = spi_device_event_controller_object_finalize;
1864 if (g_getenv ("DISPLAY"))
1865 spi_dec_setup_x11 (klass);
1868 g_type_class_add_private (object_class, sizeof (long)); /* dummy */
1872 spi_device_event_controller_init (SpiDEController *device_event_controller)
1874 SpiDEControllerClass *klass;
1875 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (device_event_controller);
1877 /* TODO: shouldn't be gpointer below */
1878 device_event_controller->priv = G_TYPE_INSTANCE_GET_PRIVATE (device_event_controller,
1879 SPI_DEVICE_EVENT_CONTROLLER_TYPE,
1881 device_event_controller->message_queue = g_queue_new ();
1882 saved_controller = device_event_controller;
1884 if (klass->plat.init)
1885 klass->plat.init (device_event_controller);
1889 /*---------------------------------------------------------------------------*/
1891 static const char *introspection_header =
1892 "<?xml version=\"1.0\"?>\n";
1894 static const char *introspection_node_element =
1895 "<node name=\"%s\">\n";
1897 static const char *introspection_footer =
1900 static DBusMessage *
1901 impl_Introspect (DBusConnection * bus,
1902 DBusMessage * message, void *user_data)
1907 const gchar *pathstr = SPI_DBUS_PATH_DEC;
1911 output = g_string_new(introspection_header);
1913 g_string_append_printf(output, introspection_node_element, pathstr);
1915 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
1917 g_string_append(output, introspection_footer);
1918 final = g_string_free(output, FALSE);
1920 reply = dbus_message_new_method_return (message);
1921 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
1927 /*---------------------------------------------------------------------------*/
1930 handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
1932 const gchar *iface = dbus_message_get_interface (message);
1933 const gchar *member = dbus_message_get_member (message);
1934 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1935 DBusMessage *reply = NULL;
1937 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
1939 result = DBUS_HANDLER_RESULT_HANDLED;
1940 if (!strcmp (member, "RegisterKeystrokeListener"))
1941 reply = impl_register_keystroke_listener (bus, message, user_data);
1942 else if (!strcmp (member, "RegisterDeviceEventListener"))
1943 reply = impl_register_device_event_listener (bus, message, user_data);
1944 else if (!strcmp (member, "DeregisterKeystrokeListener"))
1945 reply = impl_deregister_keystroke_listener (bus, message, user_data);
1946 else if (!strcmp (member, "DeregisterDeviceEventListener"))
1947 reply = impl_deregister_device_event_listener (bus, message, user_data);
1948 else if (!strcmp (member, "GetKeystrokeListeners"))
1949 reply = impl_get_keystroke_listeners (bus, message, user_data);
1950 else if (!strcmp (member, "GetDeviceEventListeners"))
1951 reply = impl_get_device_event_listeners (bus, message, user_data);
1952 else if (!strcmp (member, "GenerateKeyboardEvent"))
1953 reply = impl_generate_keyboard_event (bus, message, user_data);
1954 else if (!strcmp (member, "GenerateMouseEvent"))
1955 reply = impl_generate_mouse_event (bus, message, user_data);
1956 else if (!strcmp (member, "NotifyListenersSync"))
1957 reply = impl_notify_listeners_sync (bus, message, user_data);
1958 else if (!strcmp (member, "NotifyListenersAsync"))
1959 reply = impl_notify_listeners_async (bus, message, user_data);
1961 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1964 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
1966 result = DBUS_HANDLER_RESULT_HANDLED;
1967 if (!strcmp (member, "Introspect"))
1968 reply = impl_Introspect (bus, message, user_data);
1970 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1973 if (result == DBUS_HANDLER_RESULT_HANDLED)
1977 reply = dbus_message_new_method_return (message);
1980 dbus_connection_send (bus, reply, NULL);
1981 dbus_message_unref (reply);
1986 message_queue_dispatch (gpointer data)
1988 saved_controller->message_queue_idle = 0;
1989 while (!g_queue_is_empty (saved_controller->message_queue))
1991 DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
1992 data = g_queue_pop_head (saved_controller->message_queue);
1993 handle_dec_method_from_idle (saved_controller->bus, message, data);
1994 dbus_message_unref (message);
1999 static DBusHandlerResult
2000 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2002 const gchar *iface = dbus_message_get_interface (message);
2003 const gchar *member = dbus_message_get_member (message);
2004 const gint type = dbus_message_get_type (message);
2006 /* Check for basic reasons not to handle */
2007 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2010 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2012 dbus_message_ref (message);
2013 g_queue_push_tail (saved_controller->message_queue, message);
2014 g_queue_push_tail (saved_controller->message_queue, user_data);
2015 if (!saved_controller->message_queue_idle) {
2016 saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2017 g_source_set_name_by_id (saved_controller->message_queue_idle, "[at-spi2-core] message_queue_dispatch");
2019 return DBUS_HANDLER_RESULT_HANDLED;
2022 static DBusObjectPathVTable dec_vtable =
2026 NULL, NULL, NULL, NULL
2030 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2032 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2034 dec->registry = g_object_ref (reg);
2035 reg->dec = g_object_ref (dec);
2038 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2044 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2046 if (!have_mouse_event_listener)
2048 have_mouse_event_listener = TRUE;
2049 if (!have_mouse_listener) {
2051 id = g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2052 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
2058 spi_device_event_controller_stop_poll_mouse (void)
2060 have_mouse_event_listener = FALSE;