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>
43 #include "de-marshaller.h"
48 #include "event-source.h"
51 #include "deviceeventcontroller.h"
52 #include "reentrant-list.h"
54 #include "introspection.h"
56 #define CHECK_RELEASE_DELAY 20
57 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
58 static SpiDEController *saved_controller;
60 /* Our parent Gtk object type */
61 #define PARENT_TYPE G_TYPE_OBJECT
63 /* A pointer to our parent object class */
64 static int spi_error_code = 0;
69 typedef struct _SpiPoint SpiPoint;
71 static unsigned int mouse_mask_state = 0;
72 static unsigned int key_modifier_mask =
73 SPI_KEYMASK_MOD1 | SPI_KEYMASK_MOD2 | SPI_KEYMASK_MOD3 | SPI_KEYMASK_MOD4 |
74 SPI_KEYMASK_MOD5 | SPI_KEYMASK_SHIFT | SPI_KEYMASK_SHIFTLOCK |
75 SPI_KEYMASK_CONTROL | SPI_KEYMASK_NUMLOCK;
76 static unsigned int _numlock_physical_mask = SPI_KEYMASK_MOD2; /* a guess, will be reset */
78 static gboolean have_mouse_listener = FALSE;
79 static gboolean have_mouse_event_listener = FALSE;
84 guint pending_add : 1;
85 guint pending_remove : 1;
87 Accessibility_ControllerEventMask mod_mask;
88 dbus_uint32_t key_val; /* KeyCode */
89 } DEControllerGrabMask;
92 gboolean spi_controller_update_key_grabs (SpiDEController *controller,
93 Accessibility_DeviceEvent *recv);
95 static gboolean eventtype_seq_contains_event (dbus_uint32_t types,
96 const Accessibility_DeviceEvent *event);
97 static gboolean spi_dec_poll_mouse_moving (gpointer data);
98 static gboolean spi_dec_poll_mouse_idle (gpointer data);
100 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
103 spi_dec_plat_get_keycode (SpiDEController *controller,
109 SpiDEControllerClass *klass;
110 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
111 if (klass->plat.get_keycode)
112 return klass->plat.get_keycode (controller, keysym, key_str, fix, modmask);
118 spi_dec_plat_mouse_check (SpiDEController *controller,
119 int *x, int *y, gboolean *moved)
121 SpiDEControllerClass *klass;
122 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
123 if (klass->plat.mouse_check)
124 return klass->plat.mouse_check (controller, x, y, moved);
130 spi_dec_plat_grab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
132 SpiDEControllerClass *klass;
133 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
134 if (klass->plat.grab_key)
135 return klass->plat.grab_key (controller, key_val, mod_mask);
141 spi_dec_plat_ungrab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
143 SpiDEControllerClass *klass;
144 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
145 if (klass->plat.ungrab_key)
146 klass->plat.ungrab_key (controller, key_val, mod_mask);
150 spi_dec_plat_synth_keycode_press (SpiDEController *controller,
151 unsigned int keycode)
153 SpiDEControllerClass *klass;
154 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
155 if (klass->plat.synth_keycode_press)
156 return klass->plat.synth_keycode_press (controller, keycode);
162 spi_dec_plat_synth_keycode_release (SpiDEController *controller,
163 unsigned int keycode)
165 SpiDEControllerClass *klass;
166 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
167 if (klass->plat.synth_keycode_release)
168 return klass->plat.synth_keycode_release (controller, keycode);
174 spi_dec_plat_lock_modifiers (SpiDEController *controller, unsigned modifiers)
176 SpiDEControllerClass *klass;
177 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
178 if (klass->plat.lock_modifiers)
179 return klass->plat.lock_modifiers (controller, modifiers);
185 spi_dec_plat_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
187 SpiDEControllerClass *klass;
188 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
189 if (klass->plat.unlock_modifiers)
190 return klass->plat.unlock_modifiers (controller, modifiers);
196 spi_dec_plat_synth_keystring (SpiDEController *controller, guint synth_type, gint keycode, const char *keystring)
198 SpiDEControllerClass *klass;
199 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
200 if (klass->plat.synth_keystring)
201 return klass->plat.synth_keystring (controller, synth_type, keycode, keystring);
207 spi_dec_plat_emit_modifier_event (SpiDEController *controller, guint prev_mask,
210 SpiDEControllerClass *klass;
211 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
212 if (klass->plat.emit_modifier_event)
213 klass->plat.emit_modifier_event (controller, prev_mask, current_mask);
217 spi_dec_plat_generate_mouse_event (SpiDEController *controller,
220 const char *eventName)
222 SpiDEControllerClass *klass;
223 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
224 if (klass->plat.generate_mouse_event)
225 klass->plat.generate_mouse_event (controller, x, y, eventName);
229 invalid_arguments_error (DBusMessage *message)
234 errmsg= g_strdup_printf (
235 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
236 dbus_message_get_member (message),
237 dbus_message_get_signature (message),
238 dbus_message_get_interface (message));
239 reply = dbus_message_new_error (message,
240 DBUS_ERROR_INVALID_ARGS,
246 /* Private methods */
248 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
250 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
254 dbus_error_init (&error);
255 dbus_bus_add_match (bus, match, &error);
257 if (dbus_error_is_set (&error))
259 dbus_error_free (&error);
271 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
273 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
277 dbus_error_init (&error);
278 dbus_bus_remove_match (bus, match, &error);
280 if (dbus_error_is_set (&error))
282 dbus_error_free (&error);
293 static DEControllerGrabMask *
294 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
296 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
298 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
300 clone->ref_count = 1;
301 clone->pending_add = TRUE;
302 clone->pending_remove = FALSE;
308 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
314 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
316 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
317 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
325 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
330 spi_dec_dbus_emit (SpiDEController *controller, const char *interface,
331 const char *name, const char *minor, int a1, int a2)
333 DBusMessage *signal = NULL;
334 DBusMessageIter iter, iter_struct, iter_variant;
336 const char *path = SPI_DBUS_PATH_ROOT;
337 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
339 signal = dbus_message_new_signal (path, interface, name);
341 dbus_message_iter_init_append (signal, &iter);
343 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
344 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a1);
345 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a2);
346 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
347 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
348 dbus_message_iter_close_container (&iter, &iter_variant);
350 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
352 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
353 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
354 dbus_message_iter_close_container (&iter, &iter_struct);
356 dbus_connection_send (controller->bus, signal, NULL);
357 dbus_message_unref (signal);
361 spi_dec_poll_mouse_moved (gpointer data)
363 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
368 mask_return = spi_dec_plat_mouse_check (controller, &x, &y, &moved);
370 if ((mask_return & key_modifier_mask) !=
371 (mouse_mask_state & key_modifier_mask))
373 spi_dec_plat_emit_modifier_event (controller, mouse_mask_state, mask_return);
374 mouse_mask_state = mask_return;
381 spi_dec_poll_mouse_idle (gpointer data)
383 if (!have_mouse_event_listener && !have_mouse_listener)
385 else if (!spi_dec_poll_mouse_moved (data))
390 id = g_timeout_add (20, spi_dec_poll_mouse_moving, data);
391 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_moving");
397 spi_dec_poll_mouse_moving (gpointer data)
399 if (!have_mouse_event_listener && !have_mouse_listener)
401 else if (spi_dec_poll_mouse_moved (data))
406 id = g_timeout_add (100, spi_dec_poll_mouse_idle, data);
407 g_source_set_name_by_id (id, "[at-spi2-core] check_release");
413 * Eventually we can use this to make the marshalling of mask types
414 * more sane, but for now we just use this to detect
415 * the use of 'virtual' masks such as numlock and convert them to
416 * system-specific mask values (i.e. ModMask).
419 static Accessibility_ControllerEventMask
420 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
422 Accessibility_ControllerEventMask tmp_mask;
423 gboolean has_numlock;
425 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
429 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
430 tmp_mask |= _numlock_physical_mask;
436 static DEControllerKeyListener *
437 spi_dec_key_listener_new (const char *bus_name,
440 const Accessibility_ControllerEventMask mask,
441 const dbus_uint32_t types,
442 const Accessibility_EventListenerMode *mode)
444 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
445 key_listener->listener.bus_name = g_strdup(bus_name);
446 key_listener->listener.path = g_strdup(path);
447 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
448 key_listener->keys = keys;
449 key_listener->mask = spi_dec_translate_mask (mask);
450 key_listener->listener.types = types;
453 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
454 memcpy(key_listener->mode, mode, sizeof(*mode));
457 key_listener->mode = NULL;
460 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
461 (unsigned int) key_listener->mask,
462 (int) (mode ? mode->global : 0),
463 (void *) key_listener->keys,
464 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
470 static DEControllerListener *
471 spi_dec_listener_new (const char *bus_name,
475 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
476 listener->bus_name = g_strdup(bus_name);
477 listener->path = g_strdup(path);
478 listener->type = SPI_DEVICE_TYPE_MOUSE;
479 listener->types = types;
483 static DEControllerListener *
484 spi_listener_clone (DEControllerListener *listener)
486 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
487 clone->bus_name = g_strdup (listener->bus_name);
488 clone->path = g_strdup (listener->path);
489 clone->type = listener->type;
490 clone->types = listener->types;
494 static GSList *keylist_clone (GSList *s)
499 for (l = s; l; l = g_slist_next(l))
501 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
504 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
505 kd->keycode = kds->keycode;
506 kd->keysym = kds->keysym;
507 kd->keystring = g_strdup(kds->keystring);
508 d = g_slist_append(d, kd);
514 static DEControllerKeyListener *
515 spi_key_listener_clone (DEControllerKeyListener *key_listener)
517 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
518 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
519 clone->listener.path = g_strdup (key_listener->listener.path);
520 clone->listener.type = SPI_DEVICE_TYPE_KBD;
521 clone->keys = keylist_clone (key_listener->keys);
522 clone->mask = key_listener->mask;
523 clone->listener.types = key_listener->listener.types;
524 if (key_listener->mode)
526 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
527 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
534 static void keylist_free(GSList *keys)
538 for (l = keys; l; l = g_slist_next(l))
540 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
541 g_free(kd->keystring);
548 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
550 keylist_free(key_listener->keys);
551 if (key_listener->mode) g_free(key_listener->mode);
552 g_free (key_listener->listener.bus_name);
553 g_free (key_listener->listener.path);
554 g_free (key_listener);
558 spi_key_listener_clone_free (DEControllerKeyListener *clone)
560 spi_key_listener_data_free (clone);
564 spi_listener_clone_free (DEControllerListener *clone)
566 g_free (clone->path);
567 g_free (clone->bus_name);
572 spi_dec_listener_free (DEControllerListener *listener)
574 if (listener->type == SPI_DEVICE_TYPE_KBD)
575 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
578 g_free (listener->bus_name);
579 g_free (listener->path);
584 _register_keygrab (SpiDEController *controller,
585 DEControllerGrabMask *grab_mask)
589 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
590 spi_grab_mask_compare_values);
593 DEControllerGrabMask *cur_mask = l->data;
595 cur_mask->ref_count++;
596 if (cur_mask->pending_remove)
598 cur_mask->pending_remove = FALSE;
603 controller->keygrabs_list =
604 g_list_prepend (controller->keygrabs_list,
605 spi_grab_mask_clone (grab_mask));
610 _deregister_keygrab (SpiDEController *controller,
611 DEControllerGrabMask *grab_mask)
615 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
616 spi_grab_mask_compare_values);
620 DEControllerGrabMask *cur_mask = l->data;
622 cur_mask->ref_count--;
623 if (cur_mask->ref_count <= 0)
625 cur_mask->pending_remove = TRUE;
631 handle_keygrab (SpiDEController *controller,
632 DEControllerKeyListener *key_listener,
633 void (*process_cb) (SpiDEController *controller,
634 DEControllerGrabMask *grab_mask))
636 DEControllerGrabMask grab_mask = { 0 };
638 grab_mask.mod_mask = key_listener->mask;
639 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
641 grab_mask.key_val = 0L; /* AnyKey */
643 fprintf (stderr, "AnyKey grab!");
645 process_cb (controller, &grab_mask);
651 for (l = key_listener->keys; l; l = g_slist_next(l))
653 Accessibility_KeyDefinition *keydef = l->data;
655 key_val = spi_dec_plat_get_keycode (controller, keydef->keysym, keydef->keystring, FALSE, NULL);
657 key_val = keydef->keycode;
658 grab_mask.key_val = key_val;
659 process_cb (controller, &grab_mask);
665 spi_controller_register_global_keygrabs (SpiDEController *controller,
666 DEControllerKeyListener *key_listener)
668 handle_keygrab (controller, key_listener, _register_keygrab);
669 return spi_controller_update_key_grabs (controller, NULL);
673 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
674 DEControllerKeyListener *key_listener)
676 handle_keygrab (controller, key_listener, _deregister_keygrab);
677 spi_controller_update_key_grabs (controller, NULL);
681 append_keystroke_listener (DBusMessageIter *iter, DEControllerKeyListener *listener)
683 dbus_uint32_t d_uint;
684 DBusMessageIter iter_struct, iter_subarray, iter_substruct;
687 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
691 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
692 &listener->listener.bus_name);
693 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
694 &listener->listener.path);
695 d_uint = listener->listener.type;
696 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
697 d_uint = listener->listener.types;
698 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
699 if (!dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_ARRAY,
700 "(iisi)", &iter_subarray))
702 dbus_message_iter_close_container (iter, &iter_struct);
705 for (kl = listener->keys; kl; kl = kl->next)
707 Accessibility_KeyDefinition *kd = kl->data;
708 if (!dbus_message_iter_open_container (&iter_subarray, DBUS_TYPE_STRUCT,
709 NULL, &iter_substruct))
711 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keycode);
712 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keysym);
713 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_STRING, &kd->keystring);
714 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->unused);
715 dbus_message_iter_close_container (&iter_subarray, &iter_substruct);
717 dbus_message_iter_close_container (&iter_struct, &iter_subarray);
718 d_uint = listener->mask;
719 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
720 if (dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_STRUCT,
721 NULL, &iter_substruct))
725 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
726 &listener->mode->synchronous);
727 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
728 &listener->mode->preemptive);
729 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
730 &listener->mode->global);
734 dbus_bool_t dummy_val = FALSE;
735 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
737 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
739 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
742 dbus_message_iter_close_container (&iter_struct, &iter_substruct);
744 dbus_message_iter_close_container (iter, &iter_struct);
748 notify_keystroke_listener (SpiDEController *controller,
749 DEControllerKeyListener *listener,
752 const char *path = SPI_DBUS_PATH_DEC;
753 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
754 const char *name = (enable
755 ? "KeystrokeListenerRegistered"
756 : "KeystrokeListenerDeregistered");
758 DBusMessageIter iter;
760 signal = dbus_message_new_signal (path, interface, name);
763 dbus_message_iter_init_append (signal, &iter);
764 append_keystroke_listener (&iter, listener);
765 dbus_connection_send (controller->bus, signal, NULL);
766 dbus_message_unref (signal);
770 append_mouse_listener (DBusMessageIter *iter, DEControllerListener *listener)
772 DBusMessageIter iter_struct;
773 dbus_uint32_t d_uint;
775 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
778 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
779 &listener->bus_name);
780 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
782 d_uint = listener->types;
783 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
784 dbus_message_iter_close_container (iter, &iter_struct);
788 notify_mouse_listener (SpiDEController *controller,
789 DEControllerListener *listener,
792 const char *path = SPI_DBUS_PATH_DEC;
793 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
794 const char *name = (enable
795 ? "DeviceListenerRegistered"
796 : "DeviceListenerDeregistered");
798 DBusMessageIter iter;
800 signal = dbus_message_new_signal (path, interface, name);
803 dbus_message_iter_init_append (signal, &iter);
804 append_mouse_listener (&iter, listener);
805 dbus_connection_send (controller->bus, signal, NULL);
806 dbus_message_unref (signal);
810 spi_controller_register_device_listener (SpiDEController *controller,
811 DEControllerListener *listener)
813 DEControllerKeyListener *key_listener;
816 switch (listener->type) {
817 case SPI_DEVICE_TYPE_KBD:
818 key_listener = (DEControllerKeyListener *) listener;
820 controller->key_listeners = g_list_prepend (controller->key_listeners,
822 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
823 if (key_listener->mode->global)
825 retval = spi_controller_register_global_keygrabs (controller, key_listener);
830 notify_keystroke_listener (controller, key_listener, TRUE);
832 case SPI_DEVICE_TYPE_MOUSE:
833 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
834 if (!have_mouse_listener)
836 have_mouse_listener = TRUE;
837 if (!have_mouse_event_listener) {
839 id = g_timeout_add (100, spi_dec_poll_mouse_idle, controller);
840 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
843 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
844 notify_mouse_listener (controller, listener, TRUE);
853 set_reply (DBusPendingCall *pending, void *user_data)
855 void **replyptr = (void **)user_data;
857 *replyptr = dbus_pending_call_steal_reply (pending);
860 static GSList *hung_processes = NULL;
863 reset_hung_process (DBusPendingCall *pending, void *data)
865 DBusMessage *message = data;
866 const char *dest = dbus_message_get_destination (message);
869 /* At this point we don't care about the result */
870 dbus_pending_call_unref (pending);
872 for (l = hung_processes; l; l = l->next)
874 if (!strcmp (l->data, dest))
877 hung_processes = g_slist_remove (hung_processes, l->data);
884 time_elapsed (struct timeval *origin)
888 gettimeofday (&tv, NULL);
889 return (tv.tv_sec - origin->tv_sec) * 1000 + (tv.tv_usec - origin->tv_usec) / 1000;
893 reset_hung_process_from_ping (DBusPendingCall *pending, void *data)
897 for (l = hung_processes; l; l = l->next)
899 if (!strcmp (l->data, data))
902 hung_processes = g_slist_remove (hung_processes, l->data);
907 dbus_pending_call_unref (pending);
911 send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, int timeout, DBusError *error)
913 DBusPendingCall *pending;
914 DBusMessage *reply = NULL;
917 if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
921 dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
922 gettimeofday (&tv, NULL);
925 if (!dbus_connection_read_write_dispatch (bus, timeout) ||
926 time_elapsed (&tv) > timeout)
928 const char *dest = dbus_message_get_destination (message);
932 dbus_message_ref (message);
933 dbus_pending_call_set_notify (pending, reset_hung_process, message,
934 (DBusFreeFunction) dbus_message_unref);
935 message = dbus_message_new_method_call (dest, "/",
936 "org.freedesktop.DBus.Peer",
940 result = dbus_connection_send_with_reply (bus, message, &pending, -1);
941 dbus_message_unref (message);
942 if (!result || !pending)
944 bus_name_dup = g_strdup (dest);
945 dbus_pending_call_set_notify (pending, reset_hung_process_from_ping,
947 for (l = hung_processes; l; l = l->next)
948 if (!strcmp (l->data, dest))
950 hung_processes = g_slist_prepend (hung_processes, g_strdup (dest));
954 dbus_pending_call_unref (pending);
958 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
959 SpiRegistry *registry,
960 DEControllerListener *listener,
961 const Accessibility_DeviceEvent *key_event)
963 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
965 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
967 dbus_bool_t consumed = FALSE;
969 gboolean hung = FALSE;
971 for (l = hung_processes; l; l = l->next)
973 if (!strcmp (l->data, listener->bus_name))
975 dbus_message_set_no_reply (message, TRUE);
981 if (spi_dbus_marshal_deviceEvent(message, key_event))
987 dbus_connection_send (controller->bus, message, NULL);
988 dbus_message_unref (message);
992 reply = send_and_allow_reentry (controller->bus, message, 3000, NULL);
995 dbus_message_get_args(reply, NULL, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
996 dbus_message_unref(reply);
999 dbus_message_unref(message);
1004 spi_controller_notify_mouselisteners (SpiDEController *controller,
1005 const Accessibility_DeviceEvent *event)
1008 GSList *notify = NULL, *l2;
1009 GList **listeners = &controller->mouse_listeners;
1010 gboolean is_consumed;
1011 #ifdef SPI_KEYEVENT_DEBUG
1012 gboolean found = FALSE;
1019 for (l = *listeners; l; l = l->next)
1021 DEControllerListener *listener = l->data;
1023 if (eventtype_seq_contains_event (listener->types, event))
1025 /* we clone (don't dup) the listener, to avoid refcount inc. */
1026 notify = g_slist_prepend (notify,
1027 spi_listener_clone (listener));
1028 #ifdef SPI_KEYEVENT_DEBUG
1034 #ifdef SPI_KEYEVENT_DEBUG
1037 g_print ("no match for event\n");
1041 is_consumed = FALSE;
1042 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1044 DEControllerListener *listener = l2->data;
1046 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1048 spi_listener_clone_free ((DEControllerListener *) l2->data);
1051 for (; l2; l2 = l2->next)
1053 DEControllerListener *listener = l2->data;
1054 spi_listener_clone_free (listener);
1055 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1058 g_slist_free (notify);
1061 if (is_consumed) g_message ("consumed\n");
1067 key_set_contains_key (GSList *key_set,
1068 const Accessibility_DeviceEvent *key_event)
1077 g_print ("null key set!\n");
1082 len = g_slist_length (key_set);
1084 if (len == 0) /* special case, means "all keys/any key" */
1087 g_print ("anykey\n");
1092 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1094 Accessibility_KeyDefinition *kd = l->data;
1095 #ifdef SPI_KEYEVENT_DEBUG
1096 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1100 (int) key_event->id,
1101 (int) key_event->hw_code,
1102 key_event->event_string);
1104 if (kd->keysym == (dbus_uint32_t) key_event->id)
1108 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1112 if (key_event->event_string && key_event->event_string[0] &&
1113 !strcmp (kd->keystring, key_event->event_string))
1123 eventtype_seq_contains_event (dbus_uint32_t types,
1124 const Accessibility_DeviceEvent *event)
1126 if (types == 0) /* special case, means "all events/any event" */
1131 return (types & (1 << event->type));
1135 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1136 DEControllerKeyListener *listener,
1137 dbus_bool_t is_system_global)
1139 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1140 key_set_contains_key (listener->keys, key_event) &&
1141 eventtype_seq_contains_event (listener->listener.types, key_event) &&
1142 (is_system_global == listener->mode->global))
1153 spi_controller_notify_keylisteners (SpiDEController *controller,
1154 Accessibility_DeviceEvent *key_event,
1155 dbus_bool_t is_system_global)
1158 GSList *notify = NULL, *l2;
1159 GList **key_listeners = &controller->key_listeners;
1160 gboolean is_consumed;
1167 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1168 if (key_event->modifiers & _numlock_physical_mask)
1169 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1171 for (l = *key_listeners; l; l = l->next)
1173 DEControllerKeyListener *key_listener = l->data;
1175 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1177 /* we clone (don't dup) the listener, to avoid refcount inc. */
1178 notify = g_slist_prepend (notify,
1179 spi_key_listener_clone (key_listener));
1183 #ifdef SPI_KEYEVENT_DEBUG
1186 g_print ("no match for event\n");
1190 is_consumed = FALSE;
1191 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1193 DEControllerKeyListener *key_listener = l2->data;
1195 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1196 key_listener->mode->preemptive;
1198 spi_key_listener_clone_free (key_listener);
1201 for (; l2; l2 = l2->next)
1203 DEControllerKeyListener *key_listener = l2->data;
1204 spi_key_listener_clone_free (key_listener);
1205 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1208 g_slist_free (notify);
1211 if (is_consumed) g_message ("consumed\n");
1217 spi_clear_error_state (void)
1219 gboolean retval = spi_error_code != 0;
1225 spi_controller_update_key_grabs (SpiDEController *controller,
1226 Accessibility_DeviceEvent *recv)
1229 gboolean update_failed = FALSE;
1232 g_return_val_if_fail (controller != NULL, FALSE);
1235 * masks known to work with default RH 7.1+:
1236 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1237 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1238 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1239 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1241 * ControlMask grabs are broken, must be in use already
1244 keycode = spi_dec_plat_get_keycode (controller, recv->id, NULL, TRUE, NULL);
1245 for (l = controller->keygrabs_list; l; l = next)
1248 gboolean re_issue_grab;
1249 DEControllerGrabMask *grab_mask = l->data;
1253 re_issue_grab = recv &&
1254 (recv->modifiers & grab_mask->mod_mask) &&
1255 (grab_mask->key_val == keycode);
1258 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1259 (long int) grab_mask->key_val,
1260 (long int) grab_mask->mod_mask,
1261 grab_mask->pending_add ? '+' : '.',
1262 grab_mask->pending_remove ? '-' : '.',
1263 re_issue_grab ? "re-issue": "");
1268 if (grab_mask->pending_add && grab_mask->pending_remove)
1272 else if (grab_mask->pending_remove)
1275 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1277 spi_dec_plat_ungrab_key (controller,
1279 grab_mask->mod_mask);
1283 else if (grab_mask->pending_add || re_issue_grab)
1287 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1289 update_failed = spi_dec_plat_grab_key (controller,
1291 grab_mask->mod_mask);
1292 if (update_failed) {
1293 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1298 grab_mask->pending_add = FALSE;
1299 grab_mask->pending_remove = FALSE;
1303 g_assert (grab_mask->ref_count <= 0);
1305 controller->keygrabs_list = g_list_delete_link (
1306 controller->keygrabs_list, l);
1308 spi_grab_mask_free (grab_mask);
1313 return ! update_failed;
1317 * Implemented GObject::finalize
1320 spi_device_event_controller_object_finalize (GObject *object)
1322 SpiDEController *controller;
1323 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1324 SpiDEControllerClass *klass;
1326 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1327 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
1329 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1331 if (klass->plat.finalize)
1332 klass->plat.finalize (controller);
1334 parent_class->finalize (object);
1338 * DBus Accessibility::DEController::RegisterKeystrokeListener
1339 * method implementation
1341 static DBusMessage *
1342 impl_register_keystroke_listener (DBusConnection *bus,
1343 DBusMessage *message,
1346 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1347 DEControllerKeyListener *dec_listener;
1348 DBusMessageIter iter, iter_array;
1350 GSList *keys = NULL;
1351 dbus_int32_t mask, type;
1352 Accessibility_EventListenerMode *mode;
1354 DBusMessage *reply = NULL;
1357 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu(bbb)") != 0)
1358 return invalid_arguments_error (message);
1360 dbus_message_iter_init(message, &iter);
1361 dbus_message_iter_get_basic(&iter, &path);
1362 dbus_message_iter_next(&iter);
1363 dbus_message_iter_recurse(&iter, &iter_array);
1364 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1366 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1367 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))
1372 kd->keystring = g_strdup (keystring);
1373 keys = g_slist_append(keys, kd);
1375 dbus_message_iter_next(&iter);
1376 dbus_message_iter_get_basic(&iter, &mask);
1377 dbus_message_iter_next(&iter);
1378 dbus_message_iter_get_basic(&iter, &type);
1379 dbus_message_iter_next(&iter);
1380 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1383 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);
1386 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1387 dbus_message_get_sender(message), path, (unsigned long) mask);
1389 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1391 ret = spi_controller_register_device_listener (
1392 controller, (DEControllerListener *) dec_listener);
1393 reply = dbus_message_new_method_return (message);
1396 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1402 * DBus Accessibility::DEController::RegisterDeviceEventListener
1403 * method implementation
1405 static DBusMessage *
1406 impl_register_device_event_listener (DBusConnection *bus,
1407 DBusMessage *message,
1410 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1411 DEControllerListener *dec_listener;
1413 dbus_int32_t event_types;
1415 DBusMessage *reply = NULL;
1417 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1419 return invalid_arguments_error (message);
1421 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1422 ret = spi_controller_register_device_listener (
1423 controller, (DEControllerListener *) dec_listener);
1424 reply = dbus_message_new_method_return (message);
1427 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1433 DBusConnection *bus;
1434 DEControllerListener *listener;
1435 } RemoveListenerClosure;
1437 static SpiReEntrantContinue
1438 remove_listener_cb (GList * const *list,
1441 DEControllerListener *listener = (*list)->data;
1442 RemoveListenerClosure *ctx = user_data;
1444 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1445 !strcmp(ctx->listener->path, listener->path))
1447 spi_re_entrant_list_delete_link (list);
1448 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1449 spi_dec_listener_free (listener);
1452 return SPI_RE_ENTRANT_CONTINUE;
1455 static SpiReEntrantContinue
1456 copy_key_listener_cb (GList * const *list,
1459 DEControllerKeyListener *key_listener = (*list)->data;
1460 RemoveListenerClosure *ctx = user_data;
1462 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1463 !strcmp(ctx->listener->path, key_listener->listener.path))
1465 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1466 DEControllerKeyListener *ctx_key_listener =
1467 (DEControllerKeyListener *) ctx->listener;
1468 keylist_free (ctx_key_listener->keys);
1469 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1472 return SPI_RE_ENTRANT_CONTINUE;
1476 spi_controller_deregister_device_listener (SpiDEController *controller,
1477 DEControllerListener *listener)
1479 RemoveListenerClosure ctx;
1481 ctx.bus = controller->bus;
1482 ctx.listener = listener;
1484 notify_mouse_listener (controller, listener, FALSE);
1486 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1487 remove_listener_cb, &ctx);
1488 if (!controller->mouse_listeners)
1489 have_mouse_listener = FALSE;
1493 spi_deregister_controller_key_listener (SpiDEController *controller,
1494 DEControllerKeyListener *key_listener)
1496 RemoveListenerClosure ctx;
1498 ctx.bus = controller->bus;
1499 ctx.listener = (DEControllerListener *) spi_key_listener_clone (key_listener);
1501 notify_keystroke_listener (controller, key_listener, FALSE);
1503 /* special case, copy keyset from existing controller list entry */
1504 if (g_slist_length(key_listener->keys) == 0)
1506 spi_re_entrant_list_foreach (&controller->key_listeners,
1507 copy_key_listener_cb, &ctx);
1510 spi_controller_deregister_global_keygrabs (controller, key_listener);
1512 spi_re_entrant_list_foreach (&controller->key_listeners,
1513 remove_listener_cb, &ctx);
1515 spi_key_listener_clone_free ((DEControllerKeyListener *) ctx.listener);
1519 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1523 for (l = controller->mouse_listeners; l; l = tmp)
1525 DEControllerListener *listener = l->data;
1527 if (!strcmp (listener->bus_name, bus_name))
1529 spi_controller_deregister_device_listener (controller, listener);
1530 tmp = controller->mouse_listeners;
1533 for (l = controller->key_listeners; l; l = tmp)
1535 DEControllerKeyListener *key_listener = l->data;
1537 if (!strcmp (key_listener->listener.bus_name, bus_name))
1539 /* TODO: untangle the below line(s) */
1540 spi_deregister_controller_key_listener (controller, key_listener);
1541 tmp = controller->key_listeners;
1547 * DBus Accessibility::DEController::DeregisterKeystrokeListener
1548 * method implementation
1550 static DBusMessage *
1551 impl_deregister_keystroke_listener (DBusConnection *bus,
1552 DBusMessage *message,
1555 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1556 DEControllerKeyListener *key_listener;
1557 DBusMessageIter iter, iter_array;
1559 GSList *keys = NULL;
1560 dbus_int32_t mask, type;
1561 DBusMessage *reply = NULL;
1563 dbus_message_iter_init(message, &iter);
1564 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu") != 0)
1566 g_warning ("Received DeregisterKeystrokeListener with strange signature '%s'", dbus_message_get_signature (message));
1567 return invalid_arguments_error (message);
1570 dbus_message_iter_get_basic(&iter, &path);
1571 dbus_message_iter_next(&iter);
1572 dbus_message_iter_recurse(&iter, &iter_array);
1573 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1575 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1578 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))
1583 kd->keystring = g_strdup (keystring);
1584 keys = g_slist_append(keys, kd);
1586 dbus_message_iter_next(&iter);
1587 dbus_message_iter_get_basic(&iter, &mask);
1588 dbus_message_iter_next(&iter);
1589 dbus_message_iter_get_basic(&iter, &type);
1590 dbus_message_iter_next(&iter);
1591 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1592 #ifdef SPI_DEREGISTER_DEBUG
1593 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1594 (void *) l, (unsigned long) mask->value);
1597 spi_deregister_controller_key_listener (controller, key_listener);
1599 spi_dec_listener_free ((DEControllerListener *) key_listener);
1600 reply = dbus_message_new_method_return (message);
1605 * DBus Accessibility::DEController::DeregisterDeviceEventListener
1606 * method implementation
1608 static DBusMessage *
1609 impl_deregister_device_event_listener (DBusConnection *bus,
1610 DBusMessage *message,
1613 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1614 DEControllerListener *listener;
1616 dbus_int32_t event_types;
1617 DBusMessage *reply = NULL;
1619 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1621 return invalid_arguments_error (message);
1623 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1624 spi_controller_deregister_device_listener (
1625 controller, listener);
1626 reply = dbus_message_new_method_return (message);
1630 static DBusMessage *
1631 impl_get_keystroke_listeners (DBusConnection *bus,
1632 DBusMessage *message,
1635 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1636 DBusMessageIter iter, iter_array;
1637 DBusMessage *reply = dbus_message_new_method_return (message);
1643 dbus_message_iter_init_append (reply, &iter);
1644 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1645 "(souua(iisi)u(bbb))", &iter_array);
1646 for (l = controller->key_listeners; l; l = l->next)
1648 append_keystroke_listener (&iter_array, l->data);
1650 dbus_message_iter_close_container (&iter, &iter_array);
1654 static DBusMessage *
1655 impl_get_device_event_listeners (DBusConnection *bus,
1656 DBusMessage *message,
1659 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1660 DBusMessageIter iter, iter_array;
1662 DBusMessage *reply = dbus_message_new_method_return (message);
1667 dbus_message_iter_init_append (reply, &iter);
1668 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1669 "(sou)", &iter_array);
1670 for (l = controller->key_listeners; l; l = l->next)
1672 append_mouse_listener (&iter_array, l->data);
1674 dbus_message_iter_close_container (&iter, &iter_array);
1679 get_modifier_state (SpiDEController *controller)
1681 return mouse_mask_state;
1685 spi_dec_synth_keysym (SpiDEController *controller, long keysym)
1687 long key_synth_code;
1688 unsigned int modifiers, synth_mods, lock_mods;
1690 key_synth_code = spi_dec_plat_get_keycode (controller, keysym, NULL, TRUE, &synth_mods);
1692 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1694 /* TODO: set the modifiers accordingly! */
1695 modifiers = get_modifier_state (controller);
1696 /* side-effect; we may unset mousebutton modifiers here! */
1699 if (synth_mods != modifiers) {
1700 lock_mods = synth_mods & ~modifiers;
1701 spi_dec_plat_lock_modifiers (controller, lock_mods);
1703 spi_dec_plat_synth_keycode_press (controller, key_synth_code);
1704 spi_dec_plat_synth_keycode_release (controller, key_synth_code);
1706 if (synth_mods != modifiers)
1707 spi_dec_plat_unlock_modifiers (controller, lock_mods);
1714 * DBus Accessibility::DEController::RegisterKeystrokeListener
1715 * method implementation
1717 static DBusMessage *
1718 impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1720 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1721 dbus_int32_t keycode;
1723 dbus_uint32_t synth_type;
1724 DBusMessage *reply = NULL;
1726 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
1728 return invalid_arguments_error (message);
1732 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1733 (long) keycode, (int) synth_type);
1735 /* TODO: hide/wrap/remove X dependency */
1738 * TODO: when initializing, query for XTest extension before using,
1739 * and fall back to XSendEvent() if XTest is not available.
1744 case Accessibility_KEY_PRESS:
1745 spi_dec_plat_synth_keycode_press (controller, keycode);
1747 case Accessibility_KEY_PRESSRELEASE:
1748 spi_dec_plat_synth_keycode_press (controller, keycode);
1749 case Accessibility_KEY_RELEASE:
1750 spi_dec_plat_synth_keycode_release (controller, keycode);
1752 case Accessibility_KEY_SYM:
1753 #ifdef SPI_XKB_DEBUG
1754 fprintf (stderr, "KeySym synthesis\n");
1757 * note: we are using long for 'keycode'
1758 * in our arg list; it can contain either
1759 * a keycode or a keysym.
1761 spi_dec_synth_keysym (controller, keycode);
1763 case Accessibility_KEY_STRING:
1764 if (!spi_dec_plat_synth_keystring (controller, synth_type, keycode, keystring))
1765 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
1769 reply = dbus_message_new_method_return (message);
1773 /* Accessibility::DEController::GenerateMouseEvent */
1774 static DBusMessage *
1775 impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1780 DBusMessage *reply = NULL;
1782 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
1784 return invalid_arguments_error (message);
1788 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1789 eventName, (long int) x, (long int) y);
1791 spi_dec_plat_generate_mouse_event (saved_controller, x, y, eventName);
1792 reply = dbus_message_new_method_return (message);
1796 /* Accessibility::DEController::NotifyListenersSync */
1797 static DBusMessage *
1798 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
1800 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1801 Accessibility_DeviceEvent event;
1803 DBusMessage *reply = NULL;
1805 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1807 return invalid_arguments_error (message);
1810 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1811 controller, (int) event.id);
1813 ret = spi_controller_notify_keylisteners (controller,
1814 (Accessibility_DeviceEvent *)
1817 reply = dbus_message_new_method_return (message);
1820 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1825 static DBusMessage *
1826 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
1828 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1829 Accessibility_DeviceEvent event;
1830 DBusMessage *reply = NULL;
1832 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1834 return invalid_arguments_error (message);
1837 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
1838 controller, (int) event.id);
1840 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
1842 reply = dbus_message_new_method_return (message);
1847 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1849 GObjectClass * object_class = (GObjectClass *) klass;
1851 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1853 object_class->finalize = spi_device_event_controller_object_finalize;
1856 if (g_getenv ("DISPLAY"))
1857 spi_dec_setup_x11 (klass);
1860 g_type_class_add_private (object_class, sizeof (long)); /* dummy */
1864 spi_device_event_controller_init (SpiDEController *device_event_controller)
1866 SpiDEControllerClass *klass;
1867 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (device_event_controller);
1869 /* TODO: shouldn't be gpointer below */
1870 device_event_controller->priv = G_TYPE_INSTANCE_GET_PRIVATE (device_event_controller,
1871 SPI_DEVICE_EVENT_CONTROLLER_TYPE,
1873 device_event_controller->message_queue = g_queue_new ();
1874 saved_controller = device_event_controller;
1876 if (klass->plat.init)
1877 klass->plat.init (device_event_controller);
1881 /*---------------------------------------------------------------------------*/
1883 static const char *introspection_header =
1884 "<?xml version=\"1.0\"?>\n";
1886 static const char *introspection_node_element =
1887 "<node name=\"%s\">\n";
1889 static const char *introspection_footer =
1892 static DBusMessage *
1893 impl_Introspect (DBusConnection * bus,
1894 DBusMessage * message, void *user_data)
1899 const gchar *pathstr = SPI_DBUS_PATH_DEC;
1903 output = g_string_new(introspection_header);
1905 g_string_append_printf(output, introspection_node_element, pathstr);
1907 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
1909 g_string_append(output, introspection_footer);
1910 final = g_string_free(output, FALSE);
1912 reply = dbus_message_new_method_return (message);
1913 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
1919 /*---------------------------------------------------------------------------*/
1922 handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
1924 const gchar *iface = dbus_message_get_interface (message);
1925 const gchar *member = dbus_message_get_member (message);
1926 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1927 DBusMessage *reply = NULL;
1929 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
1931 result = DBUS_HANDLER_RESULT_HANDLED;
1932 if (!strcmp (member, "RegisterKeystrokeListener"))
1933 reply = impl_register_keystroke_listener (bus, message, user_data);
1934 else if (!strcmp (member, "RegisterDeviceEventListener"))
1935 reply = impl_register_device_event_listener (bus, message, user_data);
1936 else if (!strcmp (member, "DeregisterKeystrokeListener"))
1937 reply = impl_deregister_keystroke_listener (bus, message, user_data);
1938 else if (!strcmp (member, "DeregisterDeviceEventListener"))
1939 reply = impl_deregister_device_event_listener (bus, message, user_data);
1940 else if (!strcmp (member, "GetKeystrokeListeners"))
1941 reply = impl_get_keystroke_listeners (bus, message, user_data);
1942 else if (!strcmp (member, "GetDeviceEventListeners"))
1943 reply = impl_get_device_event_listeners (bus, message, user_data);
1944 else if (!strcmp (member, "GenerateKeyboardEvent"))
1945 reply = impl_generate_keyboard_event (bus, message, user_data);
1946 else if (!strcmp (member, "GenerateMouseEvent"))
1947 reply = impl_generate_mouse_event (bus, message, user_data);
1948 else if (!strcmp (member, "NotifyListenersSync"))
1949 reply = impl_notify_listeners_sync (bus, message, user_data);
1950 else if (!strcmp (member, "NotifyListenersAsync"))
1951 reply = impl_notify_listeners_async (bus, message, user_data);
1953 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1956 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
1958 result = DBUS_HANDLER_RESULT_HANDLED;
1959 if (!strcmp (member, "Introspect"))
1960 reply = impl_Introspect (bus, message, user_data);
1962 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1965 if (result == DBUS_HANDLER_RESULT_HANDLED)
1969 reply = dbus_message_new_method_return (message);
1972 dbus_connection_send (bus, reply, NULL);
1973 dbus_message_unref (reply);
1978 message_queue_dispatch (gpointer data)
1980 saved_controller->message_queue_idle = 0;
1981 while (!g_queue_is_empty (saved_controller->message_queue))
1983 DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
1984 data = g_queue_pop_head (saved_controller->message_queue);
1985 handle_dec_method_from_idle (saved_controller->bus, message, data);
1986 dbus_message_unref (message);
1991 static DBusHandlerResult
1992 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
1994 const gchar *iface = dbus_message_get_interface (message);
1995 const gchar *member = dbus_message_get_member (message);
1996 const gint type = dbus_message_get_type (message);
1998 /* Check for basic reasons not to handle */
1999 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2002 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2004 dbus_message_ref (message);
2005 g_queue_push_tail (saved_controller->message_queue, message);
2006 g_queue_push_tail (saved_controller->message_queue, user_data);
2007 if (!saved_controller->message_queue_idle) {
2008 saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2009 g_source_set_name_by_id (saved_controller->message_queue_idle, "[at-spi2-core] message_queue_dispatch");
2011 return DBUS_HANDLER_RESULT_HANDLED;
2014 static DBusObjectPathVTable dec_vtable =
2018 NULL, NULL, NULL, NULL
2022 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2024 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2026 dec->registry = g_object_ref (reg);
2027 reg->dec = g_object_ref (dec);
2030 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2036 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2038 if (!have_mouse_event_listener)
2040 have_mouse_event_listener = TRUE;
2041 if (!have_mouse_listener) {
2043 id = g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2044 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
2050 spi_device_event_controller_stop_poll_mouse (void)
2052 have_mouse_event_listener = FALSE;