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 Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 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 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
24 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
39 #include <dbus/dbus.h>
43 #include "de-marshaller.h"
46 #include "deviceeventcontroller.h"
47 #include "reentrant-list.h"
48 #include "introspection.h"
51 #include "deviceeventcontroller-x11.h"
53 #include "event-source.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
64 /* If we are using X11, SpiDEControllerPrivate is defined in deviceeventcontroller-x11.h.
65 * Otherwise, there is no private data and so we use a dummy struct.
66 * This is so that G_ADD_PRIVATE() will have a type to work with.
70 } SpiDEControllerPrivate;
73 /* A pointer to our parent object class */
74 static int spi_error_code = 0;
79 typedef struct _SpiPoint SpiPoint;
81 static unsigned int mouse_mask_state = 0;
82 static unsigned int key_modifier_mask =
83 SPI_KEYMASK_MOD1 | SPI_KEYMASK_MOD2 | SPI_KEYMASK_MOD3 | SPI_KEYMASK_MOD4 |
84 SPI_KEYMASK_MOD5 | SPI_KEYMASK_SHIFT | SPI_KEYMASK_SHIFTLOCK |
85 SPI_KEYMASK_CONTROL | SPI_KEYMASK_NUMLOCK;
86 unsigned int _numlock_physical_mask = SPI_KEYMASK_MOD2; /* a guess, will be reset */
88 static gboolean have_mouse_listener = FALSE;
89 static gboolean have_mouse_event_listener = FALSE;
94 guint pending_add : 1;
95 guint pending_remove : 1;
97 Accessibility_ControllerEventMask mod_mask;
98 dbus_uint32_t key_val; /* KeyCode */
99 } DEControllerGrabMask;
102 gboolean spi_controller_update_key_grabs (SpiDEController *controller,
103 Accessibility_DeviceEvent *recv);
105 static gboolean eventtype_seq_contains_event (dbus_uint32_t types,
106 const Accessibility_DeviceEvent *event);
107 static gboolean spi_dec_poll_mouse_moving (gpointer data);
108 static gboolean spi_dec_poll_mouse_idle (gpointer data);
110 G_DEFINE_TYPE_WITH_CODE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT,
111 G_ADD_PRIVATE (SpiDEController))
114 spi_dec_plat_get_keycode (SpiDEController *controller,
120 SpiDEControllerClass *klass;
121 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
122 if (klass->plat.get_keycode)
123 return klass->plat.get_keycode (controller, keysym, key_str, fix, modmask);
135 spi_dec_plat_mouse_check (SpiDEController *controller,
136 int *x, int *y, gboolean *moved)
138 SpiDEControllerClass *klass;
139 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
140 if (klass->plat.mouse_check)
141 return klass->plat.mouse_check (controller, x, y, moved);
153 spi_dec_plat_grab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
155 SpiDEControllerClass *klass;
156 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
157 if (klass->plat.grab_key)
158 return klass->plat.grab_key (controller, key_val, mod_mask);
164 spi_dec_plat_ungrab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
166 SpiDEControllerClass *klass;
167 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
168 if (klass->plat.ungrab_key)
169 klass->plat.ungrab_key (controller, key_val, mod_mask);
173 spi_dec_plat_synth_keycode_press (SpiDEController *controller,
174 unsigned int keycode)
176 SpiDEControllerClass *klass;
177 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
178 if (klass->plat.synth_keycode_press)
179 return klass->plat.synth_keycode_press (controller, keycode);
185 spi_dec_plat_synth_keycode_release (SpiDEController *controller,
186 unsigned int keycode)
188 SpiDEControllerClass *klass;
189 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
190 if (klass->plat.synth_keycode_release)
191 return klass->plat.synth_keycode_release (controller, keycode);
197 spi_dec_plat_lock_modifiers (SpiDEController *controller, unsigned modifiers)
199 SpiDEControllerClass *klass;
200 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
201 if (klass->plat.lock_modifiers)
202 return klass->plat.lock_modifiers (controller, modifiers);
208 spi_dec_plat_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
210 SpiDEControllerClass *klass;
211 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
212 if (klass->plat.unlock_modifiers)
213 return klass->plat.unlock_modifiers (controller, modifiers);
219 spi_dec_plat_synth_keystring (SpiDEController *controller, guint synth_type, gint keycode, const char *keystring)
221 SpiDEControllerClass *klass;
222 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
223 if (klass->plat.synth_keystring)
224 return klass->plat.synth_keystring (controller, synth_type, keycode, keystring);
230 spi_dec_plat_emit_modifier_event (SpiDEController *controller, guint prev_mask,
233 SpiDEControllerClass *klass;
234 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
235 if (klass->plat.emit_modifier_event)
236 klass->plat.emit_modifier_event (controller, prev_mask, current_mask);
240 spi_dec_plat_generate_mouse_event (SpiDEController *controller,
243 const char *eventName)
245 SpiDEControllerClass *klass;
246 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
247 if (klass->plat.generate_mouse_event)
248 klass->plat.generate_mouse_event (controller, x, y, eventName);
252 invalid_arguments_error (DBusMessage *message)
257 errmsg= g_strdup_printf (
258 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
259 dbus_message_get_member (message),
260 dbus_message_get_signature (message),
261 dbus_message_get_interface (message));
262 reply = dbus_message_new_error (message,
263 DBUS_ERROR_INVALID_ARGS,
269 /* Private methods */
271 spi_dbus_add_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_add_match (bus, match, &error);
280 if (dbus_error_is_set (&error))
282 dbus_error_free (&error);
294 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
296 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
300 dbus_error_init (&error);
301 dbus_bus_remove_match (bus, match, &error);
303 if (dbus_error_is_set (&error))
305 dbus_error_free (&error);
316 static DEControllerGrabMask *
317 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
319 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
321 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
323 clone->ref_count = 1;
324 clone->pending_add = TRUE;
325 clone->pending_remove = FALSE;
331 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
337 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
339 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
340 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
348 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
353 spi_dec_dbus_emit (SpiDEController *controller, const char *interface,
354 const char *name, const char *minor, int a1, int a2)
356 DBusMessage *signal = NULL;
357 DBusMessageIter iter, iter_struct, iter_variant;
359 const char *path = SPI_DBUS_PATH_ROOT;
360 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
362 signal = dbus_message_new_signal (path, interface, name);
364 dbus_message_iter_init_append (signal, &iter);
366 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
367 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a1);
368 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a2);
369 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
370 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
371 dbus_message_iter_close_container (&iter, &iter_variant);
373 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
375 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
376 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
377 dbus_message_iter_close_container (&iter, &iter_struct);
379 dbus_connection_send (controller->bus, signal, NULL);
380 dbus_message_unref (signal);
384 spi_dec_poll_mouse_moved (gpointer data)
386 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
391 mask_return = spi_dec_plat_mouse_check (controller, &x, &y, &moved);
393 if ((mask_return & key_modifier_mask) !=
394 (mouse_mask_state & key_modifier_mask))
396 spi_dec_plat_emit_modifier_event (controller, mouse_mask_state, mask_return);
397 mouse_mask_state = mask_return;
404 spi_dec_poll_mouse_idle (gpointer data)
406 if (!have_mouse_event_listener && !have_mouse_listener)
408 else if (!spi_dec_poll_mouse_moved (data))
413 id = g_timeout_add (20, spi_dec_poll_mouse_moving, data);
414 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_moving");
420 spi_dec_poll_mouse_moving (gpointer data)
422 if (!have_mouse_event_listener && !have_mouse_listener)
424 else if (spi_dec_poll_mouse_moved (data))
429 id = g_timeout_add (100, spi_dec_poll_mouse_idle, data);
430 g_source_set_name_by_id (id, "[at-spi2-core] check_release");
436 * Eventually we can use this to make the marshalling of mask types
437 * more sane, but for now we just use this to detect
438 * the use of 'virtual' masks such as numlock and convert them to
439 * system-specific mask values (i.e. ModMask).
442 static Accessibility_ControllerEventMask
443 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
445 Accessibility_ControllerEventMask tmp_mask;
446 gboolean has_numlock;
448 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
452 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
453 tmp_mask |= _numlock_physical_mask;
459 static DEControllerKeyListener *
460 spi_dec_key_listener_new (const char *bus_name,
463 const Accessibility_ControllerEventMask mask,
464 const dbus_uint32_t types,
465 const Accessibility_EventListenerMode *mode)
467 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
468 key_listener->listener.bus_name = g_strdup(bus_name);
469 key_listener->listener.path = g_strdup(path);
470 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
471 key_listener->keys = keys;
472 key_listener->mask = spi_dec_translate_mask (mask);
473 key_listener->listener.types = types;
476 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
477 memcpy(key_listener->mode, mode, sizeof(*mode));
480 key_listener->mode = NULL;
483 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
484 (unsigned int) key_listener->mask,
485 (int) (mode ? mode->global : 0),
486 (void *) key_listener->keys,
487 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
493 static DEControllerListener *
494 spi_dec_listener_new (const char *bus_name,
498 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
499 listener->bus_name = g_strdup(bus_name);
500 listener->path = g_strdup(path);
501 listener->type = SPI_DEVICE_TYPE_MOUSE;
502 listener->types = types;
506 static DEControllerListener *
507 spi_listener_clone (DEControllerListener *listener)
509 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
510 clone->bus_name = g_strdup (listener->bus_name);
511 clone->path = g_strdup (listener->path);
512 clone->type = listener->type;
513 clone->types = listener->types;
517 static GSList *keylist_clone (GSList *s)
522 for (l = s; l; l = g_slist_next(l))
524 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
527 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
528 kd->keycode = kds->keycode;
529 kd->keysym = kds->keysym;
530 kd->keystring = g_strdup(kds->keystring);
531 d = g_slist_append(d, kd);
537 static DEControllerKeyListener *
538 spi_key_listener_clone (DEControllerKeyListener *key_listener)
540 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
541 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
542 clone->listener.path = g_strdup (key_listener->listener.path);
543 clone->listener.type = SPI_DEVICE_TYPE_KBD;
544 clone->keys = keylist_clone (key_listener->keys);
545 clone->mask = key_listener->mask;
546 clone->listener.types = key_listener->listener.types;
547 if (key_listener->mode)
549 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
550 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
557 static void keylist_free(GSList *keys)
561 for (l = keys; l; l = g_slist_next(l))
563 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
564 g_free(kd->keystring);
571 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
573 keylist_free(key_listener->keys);
574 if (key_listener->mode) g_free(key_listener->mode);
575 g_free (key_listener->listener.bus_name);
576 g_free (key_listener->listener.path);
577 g_free (key_listener);
581 spi_key_listener_clone_free (DEControllerKeyListener *clone)
583 spi_key_listener_data_free (clone);
587 spi_listener_clone_free (DEControllerListener *clone)
589 g_free (clone->path);
590 g_free (clone->bus_name);
595 spi_dec_listener_free (DEControllerListener *listener)
597 if (listener->type == SPI_DEVICE_TYPE_KBD)
598 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
601 g_free (listener->bus_name);
602 g_free (listener->path);
607 _register_keygrab (SpiDEController *controller,
608 DEControllerGrabMask *grab_mask)
612 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
613 spi_grab_mask_compare_values);
616 DEControllerGrabMask *cur_mask = l->data;
618 cur_mask->ref_count++;
619 if (cur_mask->pending_remove)
621 cur_mask->pending_remove = FALSE;
626 controller->keygrabs_list =
627 g_list_prepend (controller->keygrabs_list,
628 spi_grab_mask_clone (grab_mask));
633 _deregister_keygrab (SpiDEController *controller,
634 DEControllerGrabMask *grab_mask)
638 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
639 spi_grab_mask_compare_values);
643 DEControllerGrabMask *cur_mask = l->data;
645 cur_mask->ref_count--;
646 if (cur_mask->ref_count <= 0)
648 cur_mask->pending_remove = TRUE;
654 handle_keygrab (SpiDEController *controller,
655 DEControllerKeyListener *key_listener,
656 void (*process_cb) (SpiDEController *controller,
657 DEControllerGrabMask *grab_mask))
659 DEControllerGrabMask grab_mask = { 0 };
661 grab_mask.mod_mask = key_listener->mask;
662 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
664 grab_mask.key_val = 0L; /* AnyKey */
666 fprintf (stderr, "AnyKey grab!");
668 process_cb (controller, &grab_mask);
674 for (l = key_listener->keys; l; l = g_slist_next(l))
676 Accessibility_KeyDefinition *keydef = l->data;
678 key_val = spi_dec_plat_get_keycode (controller, keydef->keysym, keydef->keystring, FALSE, NULL);
680 key_val = keydef->keycode;
681 grab_mask.key_val = key_val;
682 process_cb (controller, &grab_mask);
688 spi_controller_register_global_keygrabs (SpiDEController *controller,
689 DEControllerKeyListener *key_listener)
691 handle_keygrab (controller, key_listener, _register_keygrab);
692 return spi_controller_update_key_grabs (controller, NULL);
696 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
697 DEControllerKeyListener *key_listener)
699 handle_keygrab (controller, key_listener, _deregister_keygrab);
700 spi_controller_update_key_grabs (controller, NULL);
704 append_keystroke_listener (DBusMessageIter *iter, DEControllerKeyListener *listener)
706 dbus_uint32_t d_uint;
707 DBusMessageIter iter_struct, iter_subarray, iter_substruct;
710 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
714 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
715 &listener->listener.bus_name);
716 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
717 &listener->listener.path);
718 d_uint = listener->listener.type;
719 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
720 d_uint = listener->listener.types;
721 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
722 if (!dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_ARRAY,
723 "(iisi)", &iter_subarray))
725 dbus_message_iter_close_container (iter, &iter_struct);
728 for (kl = listener->keys; kl; kl = kl->next)
730 Accessibility_KeyDefinition *kd = kl->data;
731 if (!dbus_message_iter_open_container (&iter_subarray, DBUS_TYPE_STRUCT,
732 NULL, &iter_substruct))
734 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keycode);
735 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keysym);
736 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_STRING, &kd->keystring);
737 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->unused);
738 dbus_message_iter_close_container (&iter_subarray, &iter_substruct);
740 dbus_message_iter_close_container (&iter_struct, &iter_subarray);
741 d_uint = listener->mask;
742 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
743 if (dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_STRUCT,
744 NULL, &iter_substruct))
748 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
749 &listener->mode->synchronous);
750 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
751 &listener->mode->preemptive);
752 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
753 &listener->mode->global);
757 dbus_bool_t dummy_val = FALSE;
758 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
760 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
762 dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
765 dbus_message_iter_close_container (&iter_struct, &iter_substruct);
767 dbus_message_iter_close_container (iter, &iter_struct);
771 notify_keystroke_listener (SpiDEController *controller,
772 DEControllerKeyListener *listener,
775 const char *path = SPI_DBUS_PATH_DEC;
776 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
777 const char *name = (enable
778 ? "KeystrokeListenerRegistered"
779 : "KeystrokeListenerDeregistered");
781 DBusMessageIter iter;
783 signal = dbus_message_new_signal (path, interface, name);
786 dbus_message_iter_init_append (signal, &iter);
787 append_keystroke_listener (&iter, listener);
788 dbus_connection_send (controller->bus, signal, NULL);
789 dbus_message_unref (signal);
793 append_mouse_listener (DBusMessageIter *iter, DEControllerListener *listener)
795 DBusMessageIter iter_struct;
796 dbus_uint32_t d_uint;
798 if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
801 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
802 &listener->bus_name);
803 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
805 d_uint = listener->types;
806 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
807 dbus_message_iter_close_container (iter, &iter_struct);
811 notify_mouse_listener (SpiDEController *controller,
812 DEControllerListener *listener,
815 const char *path = SPI_DBUS_PATH_DEC;
816 const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
817 const char *name = (enable
818 ? "DeviceListenerRegistered"
819 : "DeviceListenerDeregistered");
821 DBusMessageIter iter;
823 signal = dbus_message_new_signal (path, interface, name);
826 dbus_message_iter_init_append (signal, &iter);
827 append_mouse_listener (&iter, listener);
828 dbus_connection_send (controller->bus, signal, NULL);
829 dbus_message_unref (signal);
833 spi_controller_register_device_listener (SpiDEController *controller,
834 DEControllerListener *listener)
836 DEControllerKeyListener *key_listener;
839 switch (listener->type) {
840 case SPI_DEVICE_TYPE_KBD:
841 key_listener = (DEControllerKeyListener *) listener;
843 controller->key_listeners = g_list_prepend (controller->key_listeners,
845 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
846 if (key_listener->mode->global)
848 retval = spi_controller_register_global_keygrabs (controller, key_listener);
853 notify_keystroke_listener (controller, key_listener, TRUE);
855 case SPI_DEVICE_TYPE_MOUSE:
856 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
857 if (!have_mouse_listener)
859 have_mouse_listener = TRUE;
860 if (!have_mouse_event_listener) {
862 id = g_timeout_add (100, spi_dec_poll_mouse_idle, controller);
863 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
866 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
867 notify_mouse_listener (controller, listener, TRUE);
876 set_reply (DBusPendingCall *pending, void *user_data)
878 void **replyptr = (void **)user_data;
880 *replyptr = dbus_pending_call_steal_reply (pending);
883 static GSList *hung_processes = NULL;
886 reset_hung_process (DBusPendingCall *pending, void *data)
888 DBusMessage *message = data;
889 const char *dest = dbus_message_get_destination (message);
892 /* At this point we don't care about the result */
893 dbus_pending_call_unref (pending);
895 for (l = hung_processes; l; l = l->next)
897 if (!strcmp (l->data, dest))
899 gpointer l_data = l->data;
900 hung_processes = g_slist_remove (hung_processes, l_data);
908 time_elapsed (struct timeval *origin)
912 gettimeofday (&tv, NULL);
913 return (tv.tv_sec - origin->tv_sec) * 1000 + (tv.tv_usec - origin->tv_usec) / 1000;
917 reset_hung_process_from_ping (DBusPendingCall *pending, void *data)
921 for (l = hung_processes; l; l = l->next)
923 if (!strcmp (l->data, data))
925 gpointer l_data = l->data;
926 hung_processes = g_slist_remove (hung_processes, l_data);
932 dbus_pending_call_unref (pending);
936 send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, int timeout, DBusError *error)
938 DBusPendingCall *pending;
939 DBusMessage *reply = NULL;
942 if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
946 dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
947 gettimeofday (&tv, NULL);
950 if (!dbus_connection_read_write_dispatch (bus, timeout) ||
951 time_elapsed (&tv) > timeout)
953 const char *dest = dbus_message_get_destination (message);
957 dbus_message_ref (message);
958 dbus_pending_call_set_notify (pending, reset_hung_process, message,
959 (DBusFreeFunction) dbus_message_unref);
960 message = dbus_message_new_method_call (dest, "/",
961 "org.freedesktop.DBus.Peer",
965 result = dbus_connection_send_with_reply (bus, message, &pending, -1);
966 dbus_message_unref (message);
967 if (!result || !pending)
969 bus_name_dup = g_strdup (dest);
970 dbus_pending_call_set_notify (pending, reset_hung_process_from_ping,
972 for (l = hung_processes; l; l = l->next)
973 if (!strcmp (l->data, dest))
975 hung_processes = g_slist_prepend (hung_processes, g_strdup (dest));
979 dbus_pending_call_unref (pending);
983 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
984 SpiRegistry *registry,
985 DEControllerListener *listener,
986 const Accessibility_DeviceEvent *key_event)
988 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
990 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
992 dbus_bool_t consumed = FALSE;
994 gboolean hung = FALSE;
996 for (l = hung_processes; l; l = l->next)
998 if (!strcmp (l->data, listener->bus_name))
1000 dbus_message_set_no_reply (message, TRUE);
1006 if (spi_dbus_marshal_deviceEvent(message, key_event))
1012 dbus_connection_send (controller->bus, message, NULL);
1013 dbus_message_unref (message);
1017 reply = send_and_allow_reentry (controller->bus, message, 3000, NULL);
1020 dbus_message_get_args(reply, NULL, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1021 dbus_message_unref(reply);
1024 dbus_message_unref(message);
1029 spi_controller_notify_mouselisteners (SpiDEController *controller,
1030 const Accessibility_DeviceEvent *event)
1033 GSList *notify = NULL, *l2;
1034 GList **listeners = &controller->mouse_listeners;
1035 gboolean is_consumed;
1036 #ifdef SPI_KEYEVENT_DEBUG
1037 gboolean found = FALSE;
1044 for (l = *listeners; l; l = l->next)
1046 DEControllerListener *listener = l->data;
1048 if (eventtype_seq_contains_event (listener->types, event))
1050 /* we clone (don't dup) the listener, to avoid refcount inc. */
1051 notify = g_slist_prepend (notify,
1052 spi_listener_clone (listener));
1053 #ifdef SPI_KEYEVENT_DEBUG
1059 #ifdef SPI_KEYEVENT_DEBUG
1062 g_print ("no match for event\n");
1066 is_consumed = FALSE;
1067 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1069 DEControllerListener *listener = l2->data;
1071 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1073 spi_listener_clone_free ((DEControllerListener *) l2->data);
1076 for (; l2; l2 = l2->next)
1078 DEControllerListener *listener = l2->data;
1079 spi_listener_clone_free (listener);
1080 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1083 g_slist_free (notify);
1086 if (is_consumed) g_message ("consumed\n");
1092 key_set_contains_key (GSList *key_set,
1093 const Accessibility_DeviceEvent *key_event)
1102 g_print ("null key set!\n");
1107 len = g_slist_length (key_set);
1109 if (len == 0) /* special case, means "all keys/any key" */
1112 g_print ("anykey\n");
1117 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1119 Accessibility_KeyDefinition *kd = l->data;
1120 #ifdef SPI_KEYEVENT_DEBUG
1121 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1125 (int) key_event->id,
1126 (int) key_event->hw_code,
1127 key_event->event_string);
1129 if (kd->keysym == (dbus_uint32_t) key_event->id)
1133 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1137 if (key_event->event_string && key_event->event_string[0] &&
1138 !strcmp (kd->keystring, key_event->event_string))
1148 eventtype_seq_contains_event (dbus_uint32_t types,
1149 const Accessibility_DeviceEvent *event)
1151 if (types == 0) /* special case, means "all events/any event" */
1156 return (types & (1 << event->type));
1160 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1161 DEControllerKeyListener *listener,
1162 dbus_bool_t is_system_global)
1164 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1165 key_set_contains_key (listener->keys, key_event) &&
1166 eventtype_seq_contains_event (listener->listener.types, key_event) &&
1167 (is_system_global == listener->mode->global))
1178 spi_controller_notify_keylisteners (SpiDEController *controller,
1179 Accessibility_DeviceEvent *key_event,
1180 dbus_bool_t is_system_global)
1183 GSList *notify = NULL, *l2;
1184 GList **key_listeners = &controller->key_listeners;
1185 gboolean is_consumed;
1192 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1193 if (key_event->modifiers & _numlock_physical_mask)
1194 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1196 for (l = *key_listeners; l; l = l->next)
1198 DEControllerKeyListener *key_listener = l->data;
1200 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1202 /* we clone (don't dup) the listener, to avoid refcount inc. */
1203 notify = g_slist_prepend (notify,
1204 spi_key_listener_clone (key_listener));
1208 #ifdef SPI_KEYEVENT_DEBUG
1211 g_print ("no match for event\n");
1215 is_consumed = FALSE;
1216 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1218 DEControllerKeyListener *key_listener = l2->data;
1220 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1221 key_listener->mode->preemptive;
1223 spi_key_listener_clone_free (key_listener);
1226 for (; l2; l2 = l2->next)
1228 DEControllerKeyListener *key_listener = l2->data;
1229 spi_key_listener_clone_free (key_listener);
1230 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1233 g_slist_free (notify);
1236 if (is_consumed) g_message ("consumed\n");
1242 spi_clear_error_state (void)
1244 gboolean retval = spi_error_code != 0;
1250 spi_controller_update_key_grabs (SpiDEController *controller,
1251 Accessibility_DeviceEvent *recv)
1254 gboolean update_failed = FALSE;
1257 g_return_val_if_fail (controller != NULL, FALSE);
1260 * masks known to work with default RH 7.1+:
1261 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1262 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1263 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1264 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1266 * ControlMask grabs are broken, must be in use already
1269 keycode = spi_dec_plat_get_keycode (controller, recv->id, NULL, TRUE, NULL);
1270 for (l = controller->keygrabs_list; l; l = next)
1273 gboolean re_issue_grab;
1274 DEControllerGrabMask *grab_mask = l->data;
1278 re_issue_grab = recv &&
1279 (recv->modifiers & grab_mask->mod_mask) &&
1280 (grab_mask->key_val == keycode);
1283 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1284 (long int) grab_mask->key_val,
1285 (long int) grab_mask->mod_mask,
1286 grab_mask->pending_add ? '+' : '.',
1287 grab_mask->pending_remove ? '-' : '.',
1288 re_issue_grab ? "re-issue": "");
1293 if (grab_mask->pending_add && grab_mask->pending_remove)
1297 else if (grab_mask->pending_remove)
1300 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1302 spi_dec_plat_ungrab_key (controller,
1304 grab_mask->mod_mask);
1308 else if (grab_mask->pending_add || re_issue_grab)
1312 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1314 update_failed = spi_dec_plat_grab_key (controller,
1316 grab_mask->mod_mask);
1317 if (update_failed) {
1318 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1323 grab_mask->pending_add = FALSE;
1324 grab_mask->pending_remove = FALSE;
1328 g_assert (grab_mask->ref_count <= 0);
1330 controller->keygrabs_list = g_list_delete_link (
1331 controller->keygrabs_list, l);
1333 spi_grab_mask_free (grab_mask);
1338 return ! update_failed;
1342 * Implemented GObject::finalize
1345 spi_device_event_controller_object_finalize (GObject *object)
1347 SpiDEController *controller;
1348 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1349 SpiDEControllerClass *klass;
1351 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1352 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
1354 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1356 if (klass->plat.finalize)
1357 klass->plat.finalize (controller);
1359 parent_class->finalize (object);
1363 * DBus Accessibility::DEController::RegisterKeystrokeListener
1364 * method implementation
1366 static DBusMessage *
1367 impl_register_keystroke_listener (DBusConnection *bus,
1368 DBusMessage *message,
1371 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1372 DEControllerKeyListener *dec_listener;
1373 DBusMessageIter iter, iter_array;
1375 GSList *keys = NULL;
1376 dbus_int32_t mask, type;
1377 Accessibility_EventListenerMode *mode;
1379 DBusMessage *reply = NULL;
1382 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu(bbb)") != 0)
1383 return invalid_arguments_error (message);
1385 dbus_message_iter_init(message, &iter);
1386 dbus_message_iter_get_basic(&iter, &path);
1387 dbus_message_iter_next(&iter);
1388 dbus_message_iter_recurse(&iter, &iter_array);
1389 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1391 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1392 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))
1397 kd->keystring = g_strdup (keystring);
1398 keys = g_slist_append(keys, kd);
1400 dbus_message_iter_next(&iter);
1401 dbus_message_iter_get_basic(&iter, &mask);
1402 dbus_message_iter_next(&iter);
1403 dbus_message_iter_get_basic(&iter, &type);
1404 dbus_message_iter_next(&iter);
1405 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1408 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);
1411 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1412 dbus_message_get_sender(message), path, (unsigned long) mask);
1414 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1416 ret = spi_controller_register_device_listener (
1417 controller, (DEControllerListener *) dec_listener);
1418 reply = dbus_message_new_method_return (message);
1421 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1427 * DBus Accessibility::DEController::RegisterDeviceEventListener
1428 * method implementation
1430 static DBusMessage *
1431 impl_register_device_event_listener (DBusConnection *bus,
1432 DBusMessage *message,
1435 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1436 DEControllerListener *dec_listener;
1438 dbus_int32_t event_types;
1440 DBusMessage *reply = NULL;
1442 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1444 return invalid_arguments_error (message);
1446 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1447 ret = spi_controller_register_device_listener (
1448 controller, (DEControllerListener *) dec_listener);
1449 reply = dbus_message_new_method_return (message);
1452 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1458 DBusConnection *bus;
1459 DEControllerListener *listener;
1460 } RemoveListenerClosure;
1462 static SpiReEntrantContinue
1463 remove_listener_cb (GList * const *list,
1466 DEControllerListener *listener = (*list)->data;
1467 RemoveListenerClosure *ctx = user_data;
1469 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1470 !strcmp(ctx->listener->path, listener->path))
1472 spi_re_entrant_list_delete_link (list);
1473 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1474 spi_dec_listener_free (listener);
1477 return SPI_RE_ENTRANT_CONTINUE;
1480 static SpiReEntrantContinue
1481 copy_key_listener_cb (GList * const *list,
1484 DEControllerKeyListener *key_listener = (*list)->data;
1485 RemoveListenerClosure *ctx = user_data;
1487 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1488 !strcmp(ctx->listener->path, key_listener->listener.path))
1490 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1491 DEControllerKeyListener *ctx_key_listener =
1492 (DEControllerKeyListener *) ctx->listener;
1493 keylist_free (ctx_key_listener->keys);
1494 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1497 return SPI_RE_ENTRANT_CONTINUE;
1501 spi_controller_deregister_device_listener (SpiDEController *controller,
1502 DEControllerListener *listener)
1504 RemoveListenerClosure ctx;
1506 ctx.bus = controller->bus;
1507 ctx.listener = listener;
1509 notify_mouse_listener (controller, listener, FALSE);
1511 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1512 remove_listener_cb, &ctx);
1513 if (!controller->mouse_listeners)
1514 have_mouse_listener = FALSE;
1518 spi_deregister_controller_key_listener (SpiDEController *controller,
1519 DEControllerKeyListener *key_listener)
1521 RemoveListenerClosure ctx;
1523 ctx.bus = controller->bus;
1524 ctx.listener = (DEControllerListener *) spi_key_listener_clone (key_listener);
1526 notify_keystroke_listener (controller, key_listener, FALSE);
1528 /* special case, copy keyset from existing controller list entry */
1529 if (g_slist_length(key_listener->keys) == 0)
1531 spi_re_entrant_list_foreach (&controller->key_listeners,
1532 copy_key_listener_cb, &ctx);
1535 spi_controller_deregister_global_keygrabs (controller, key_listener);
1537 spi_re_entrant_list_foreach (&controller->key_listeners,
1538 remove_listener_cb, &ctx);
1540 spi_key_listener_clone_free ((DEControllerKeyListener *) ctx.listener);
1544 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1548 for (l = controller->mouse_listeners; l; l = tmp)
1550 DEControllerListener *listener = l->data;
1552 if (!strcmp (listener->bus_name, bus_name))
1554 spi_controller_deregister_device_listener (controller, listener);
1555 tmp = controller->mouse_listeners;
1558 for (l = controller->key_listeners; l; l = tmp)
1560 DEControllerKeyListener *key_listener = l->data;
1562 if (!strcmp (key_listener->listener.bus_name, bus_name))
1564 /* TODO: untangle the below line(s) */
1565 spi_deregister_controller_key_listener (controller, key_listener);
1566 tmp = controller->key_listeners;
1572 * DBus Accessibility::DEController::DeregisterKeystrokeListener
1573 * method implementation
1575 static DBusMessage *
1576 impl_deregister_keystroke_listener (DBusConnection *bus,
1577 DBusMessage *message,
1580 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1581 DEControllerKeyListener *key_listener;
1582 DBusMessageIter iter, iter_array;
1584 GSList *keys = NULL;
1585 dbus_int32_t mask, type;
1586 DBusMessage *reply = NULL;
1588 dbus_message_iter_init(message, &iter);
1589 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu") != 0)
1591 g_warning ("Received DeregisterKeystrokeListener with strange signature '%s'", dbus_message_get_signature (message));
1592 return invalid_arguments_error (message);
1595 dbus_message_iter_get_basic(&iter, &path);
1596 dbus_message_iter_next(&iter);
1597 dbus_message_iter_recurse(&iter, &iter_array);
1598 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1600 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1603 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))
1608 kd->keystring = g_strdup (keystring);
1609 keys = g_slist_append(keys, kd);
1611 dbus_message_iter_next(&iter);
1612 dbus_message_iter_get_basic(&iter, &mask);
1613 dbus_message_iter_next(&iter);
1614 dbus_message_iter_get_basic(&iter, &type);
1615 dbus_message_iter_next(&iter);
1616 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1617 #ifdef SPI_DEREGISTER_DEBUG
1618 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1619 (void *) l, (unsigned long) mask->value);
1622 spi_deregister_controller_key_listener (controller, key_listener);
1624 spi_dec_listener_free ((DEControllerListener *) key_listener);
1625 reply = dbus_message_new_method_return (message);
1630 * DBus Accessibility::DEController::DeregisterDeviceEventListener
1631 * method implementation
1633 static DBusMessage *
1634 impl_deregister_device_event_listener (DBusConnection *bus,
1635 DBusMessage *message,
1638 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1639 DEControllerListener *listener;
1641 dbus_int32_t event_types;
1642 DBusMessage *reply = NULL;
1644 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1646 return invalid_arguments_error (message);
1648 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1649 spi_controller_deregister_device_listener (
1650 controller, listener);
1651 reply = dbus_message_new_method_return (message);
1655 static DBusMessage *
1656 impl_get_keystroke_listeners (DBusConnection *bus,
1657 DBusMessage *message,
1660 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1661 DBusMessageIter iter, iter_array;
1662 DBusMessage *reply = dbus_message_new_method_return (message);
1668 dbus_message_iter_init_append (reply, &iter);
1669 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1670 "(souua(iisi)u(bbb))", &iter_array);
1671 for (l = controller->key_listeners; l; l = l->next)
1673 append_keystroke_listener (&iter_array, l->data);
1675 dbus_message_iter_close_container (&iter, &iter_array);
1679 static DBusMessage *
1680 impl_get_device_event_listeners (DBusConnection *bus,
1681 DBusMessage *message,
1684 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1685 DBusMessageIter iter, iter_array;
1687 DBusMessage *reply = dbus_message_new_method_return (message);
1692 dbus_message_iter_init_append (reply, &iter);
1693 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1694 "(sou)", &iter_array);
1695 for (l = controller->key_listeners; l; l = l->next)
1697 append_mouse_listener (&iter_array, l->data);
1699 dbus_message_iter_close_container (&iter, &iter_array);
1704 get_modifier_state (SpiDEController *controller)
1706 spi_dec_poll_mouse_moved (controller);
1707 return mouse_mask_state;
1711 spi_dec_synth_keysym (SpiDEController *controller, long keysym)
1713 long key_synth_code;
1714 unsigned int modifiers, synth_mods, lock_mods;
1716 key_synth_code = spi_dec_plat_get_keycode (controller, keysym, NULL, TRUE, &synth_mods);
1718 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1720 /* TODO: set the modifiers accordingly! */
1721 modifiers = get_modifier_state (controller);
1722 /* side-effect; we may unset mousebutton modifiers here! */
1725 if (synth_mods != modifiers) {
1726 lock_mods = synth_mods & ~modifiers;
1727 spi_dec_plat_lock_modifiers (controller, lock_mods);
1728 if (modifiers & SPI_KEYMASK_SHIFTLOCK)
1729 spi_dec_plat_unlock_modifiers (controller, SPI_KEYMASK_SHIFTLOCK);
1731 spi_dec_plat_synth_keycode_press (controller, key_synth_code);
1732 spi_dec_plat_synth_keycode_release (controller, key_synth_code);
1734 if (synth_mods != modifiers) {
1735 spi_dec_plat_unlock_modifiers (controller, lock_mods);
1736 if (modifiers & SPI_KEYMASK_SHIFTLOCK)
1737 spi_dec_plat_lock_modifiers (controller, SPI_KEYMASK_SHIFTLOCK);
1745 * DBus Accessibility::DEController::RegisterKeystrokeListener
1746 * method implementation
1748 static DBusMessage *
1749 impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1751 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1752 dbus_int32_t keycode;
1754 dbus_uint32_t synth_type;
1755 DBusMessage *reply = NULL;
1757 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
1759 return invalid_arguments_error (message);
1763 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1764 (long) keycode, (int) synth_type);
1766 /* TODO: hide/wrap/remove X dependency */
1769 * TODO: when initializing, query for XTest extension before using,
1770 * and fall back to XSendEvent() if XTest is not available.
1775 case Accessibility_KEY_PRESS:
1776 spi_dec_plat_synth_keycode_press (controller, keycode);
1778 case Accessibility_KEY_PRESSRELEASE:
1779 spi_dec_plat_synth_keycode_press (controller, keycode);
1780 case Accessibility_KEY_RELEASE:
1781 spi_dec_plat_synth_keycode_release (controller, keycode);
1783 case Accessibility_KEY_SYM:
1784 #ifdef SPI_XKB_DEBUG
1785 fprintf (stderr, "KeySym synthesis\n");
1788 * note: we are using long for 'keycode'
1789 * in our arg list; it can contain either
1790 * a keycode or a keysym.
1792 spi_dec_synth_keysym (controller, keycode);
1794 case Accessibility_KEY_STRING:
1795 if (!spi_dec_plat_synth_keystring (controller, synth_type, keycode, keystring))
1796 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
1799 case Accessibility_KEY_LOCKMODIFIERS:
1800 spi_dec_plat_lock_modifiers (controller, keycode);
1802 case Accessibility_KEY_UNLOCKMODIFIERS:
1803 spi_dec_plat_unlock_modifiers (controller, keycode);
1806 reply = dbus_message_new_method_return (message);
1810 /* Accessibility::DEController::GenerateMouseEvent */
1811 static DBusMessage *
1812 impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1817 DBusMessage *reply = NULL;
1819 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
1821 return invalid_arguments_error (message);
1825 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1826 eventName, (long int) x, (long int) y);
1828 spi_dec_plat_generate_mouse_event (saved_controller, x, y, eventName);
1829 reply = dbus_message_new_method_return (message);
1833 /* Accessibility::DEController::NotifyListenersSync */
1834 static DBusMessage *
1835 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
1837 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1838 Accessibility_DeviceEvent event;
1840 DBusMessage *reply = NULL;
1842 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1844 return invalid_arguments_error (message);
1847 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1848 controller, (int) event.id);
1850 ret = spi_controller_notify_keylisteners (controller,
1851 (Accessibility_DeviceEvent *)
1854 reply = dbus_message_new_method_return (message);
1857 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1862 static DBusMessage *
1863 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
1865 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1866 Accessibility_DeviceEvent event;
1867 DBusMessage *reply = NULL;
1869 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1871 return invalid_arguments_error (message);
1874 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
1875 controller, (int) event.id);
1877 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
1879 reply = dbus_message_new_method_return (message);
1884 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1886 GObjectClass * object_class = (GObjectClass *) klass;
1888 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1890 object_class->finalize = spi_device_event_controller_object_finalize;
1893 if (g_getenv ("DISPLAY") != NULL && g_getenv ("WAYLAND_DISPLAY") == NULL)
1894 spi_dec_setup_x11 (klass);
1899 spi_device_event_controller_init (SpiDEController *device_event_controller)
1901 SpiDEControllerClass *klass;
1902 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (device_event_controller);
1904 device_event_controller->message_queue = g_queue_new ();
1905 saved_controller = device_event_controller;
1907 if (klass->plat.init)
1908 klass->plat.init (device_event_controller);
1912 /*---------------------------------------------------------------------------*/
1914 static const char *introspection_header =
1915 "<?xml version=\"1.0\"?>\n";
1917 static const char *introspection_node_element =
1918 "<node name=\"%s\">\n";
1920 static const char *introspection_footer =
1923 static DBusMessage *
1924 impl_Introspect (DBusConnection * bus,
1925 DBusMessage * message, void *user_data)
1930 const gchar *pathstr = SPI_DBUS_PATH_DEC;
1934 output = g_string_new(introspection_header);
1936 g_string_append_printf(output, introspection_node_element, pathstr);
1938 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
1940 g_string_append(output, introspection_footer);
1941 final = g_string_free(output, FALSE);
1943 reply = dbus_message_new_method_return (message);
1944 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
1950 /*---------------------------------------------------------------------------*/
1953 handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
1955 const gchar *iface = dbus_message_get_interface (message);
1956 const gchar *member = dbus_message_get_member (message);
1957 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1958 DBusMessage *reply = NULL;
1960 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
1962 result = DBUS_HANDLER_RESULT_HANDLED;
1963 if (!strcmp (member, "RegisterKeystrokeListener"))
1964 reply = impl_register_keystroke_listener (bus, message, user_data);
1965 else if (!strcmp (member, "RegisterDeviceEventListener"))
1966 reply = impl_register_device_event_listener (bus, message, user_data);
1967 else if (!strcmp (member, "DeregisterKeystrokeListener"))
1968 reply = impl_deregister_keystroke_listener (bus, message, user_data);
1969 else if (!strcmp (member, "DeregisterDeviceEventListener"))
1970 reply = impl_deregister_device_event_listener (bus, message, user_data);
1971 else if (!strcmp (member, "GetKeystrokeListeners"))
1972 reply = impl_get_keystroke_listeners (bus, message, user_data);
1973 else if (!strcmp (member, "GetDeviceEventListeners"))
1974 reply = impl_get_device_event_listeners (bus, message, user_data);
1975 else if (!strcmp (member, "GenerateKeyboardEvent"))
1976 reply = impl_generate_keyboard_event (bus, message, user_data);
1977 else if (!strcmp (member, "GenerateMouseEvent"))
1978 reply = impl_generate_mouse_event (bus, message, user_data);
1979 else if (!strcmp (member, "NotifyListenersSync"))
1980 reply = impl_notify_listeners_sync (bus, message, user_data);
1981 else if (!strcmp (member, "NotifyListenersAsync"))
1982 reply = impl_notify_listeners_async (bus, message, user_data);
1984 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1987 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
1989 result = DBUS_HANDLER_RESULT_HANDLED;
1990 if (!strcmp (member, "Introspect"))
1991 reply = impl_Introspect (bus, message, user_data);
1993 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1996 if (result == DBUS_HANDLER_RESULT_HANDLED)
2000 reply = dbus_message_new_method_return (message);
2003 dbus_connection_send (bus, reply, NULL);
2004 dbus_message_unref (reply);
2009 message_queue_dispatch (gpointer data)
2011 saved_controller->message_queue_idle = 0;
2012 while (!g_queue_is_empty (saved_controller->message_queue))
2014 DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
2015 data = g_queue_pop_head (saved_controller->message_queue);
2016 handle_dec_method_from_idle (saved_controller->bus, message, data);
2017 dbus_message_unref (message);
2022 static DBusHandlerResult
2023 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2025 const gchar *iface = dbus_message_get_interface (message);
2026 const gchar *member = dbus_message_get_member (message);
2027 const gint type = dbus_message_get_type (message);
2029 /* Check for basic reasons not to handle */
2030 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2033 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2035 dbus_message_ref (message);
2036 g_queue_push_tail (saved_controller->message_queue, message);
2037 g_queue_push_tail (saved_controller->message_queue, user_data);
2038 if (!saved_controller->message_queue_idle) {
2039 saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2040 g_source_set_name_by_id (saved_controller->message_queue_idle, "[at-spi2-core] message_queue_dispatch");
2042 return DBUS_HANDLER_RESULT_HANDLED;
2045 static DBusObjectPathVTable dec_vtable =
2049 NULL, NULL, NULL, NULL
2053 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2055 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2057 dec->registry = g_object_ref (reg);
2058 reg->dec = g_object_ref (dec);
2061 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2067 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2069 if (!have_mouse_event_listener)
2071 have_mouse_event_listener = TRUE;
2072 if (!have_mouse_listener) {
2074 id = g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2075 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
2081 spi_device_event_controller_stop_poll_mouse (void)
2083 have_mouse_event_listener = FALSE;