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);
956 dbus_message_ref (message);
957 dbus_pending_call_set_notify (pending, reset_hung_process, message,
958 (DBusFreeFunction) dbus_message_unref);
959 message = dbus_message_new_method_call (dest, "/",
960 "org.freedesktop.DBus.Peer",
964 dbus_connection_send_with_reply (bus, message, &pending, -1);
965 dbus_message_unref (message);
968 bus_name_dup = g_strdup (dest);
969 dbus_pending_call_set_notify (pending, reset_hung_process_from_ping,
971 for (l = hung_processes; l; l = l->next)
972 if (!strcmp (l->data, dest))
974 hung_processes = g_slist_prepend (hung_processes, g_strdup (dest));
978 dbus_pending_call_unref (pending);
982 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
983 SpiRegistry *registry,
984 DEControllerListener *listener,
985 const Accessibility_DeviceEvent *key_event)
987 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
989 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
991 dbus_bool_t consumed = FALSE;
993 gboolean hung = FALSE;
995 for (l = hung_processes; l; l = l->next)
997 if (!strcmp (l->data, listener->bus_name))
999 dbus_message_set_no_reply (message, TRUE);
1005 if (spi_dbus_marshal_deviceEvent(message, key_event))
1011 dbus_connection_send (controller->bus, message, NULL);
1012 dbus_message_unref (message);
1016 reply = send_and_allow_reentry (controller->bus, message, 3000, NULL);
1019 dbus_message_get_args(reply, NULL, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1020 dbus_message_unref(reply);
1023 dbus_message_unref(message);
1028 spi_controller_notify_mouselisteners (SpiDEController *controller,
1029 const Accessibility_DeviceEvent *event)
1032 GSList *notify = NULL, *l2;
1033 GList **listeners = &controller->mouse_listeners;
1034 gboolean is_consumed;
1035 #ifdef SPI_KEYEVENT_DEBUG
1036 gboolean found = FALSE;
1043 for (l = *listeners; l; l = l->next)
1045 DEControllerListener *listener = l->data;
1047 if (eventtype_seq_contains_event (listener->types, event))
1049 /* we clone (don't dup) the listener, to avoid refcount inc. */
1050 notify = g_slist_prepend (notify,
1051 spi_listener_clone (listener));
1052 #ifdef SPI_KEYEVENT_DEBUG
1058 #ifdef SPI_KEYEVENT_DEBUG
1061 g_print ("no match for event\n");
1065 is_consumed = FALSE;
1066 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1068 DEControllerListener *listener = l2->data;
1070 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1072 spi_listener_clone_free ((DEControllerListener *) l2->data);
1075 for (; l2; l2 = l2->next)
1077 DEControllerListener *listener = l2->data;
1078 spi_listener_clone_free (listener);
1079 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1082 g_slist_free (notify);
1085 if (is_consumed) g_message ("consumed\n");
1091 key_set_contains_key (GSList *key_set,
1092 const Accessibility_DeviceEvent *key_event)
1101 g_print ("null key set!\n");
1106 len = g_slist_length (key_set);
1108 if (len == 0) /* special case, means "all keys/any key" */
1111 g_print ("anykey\n");
1116 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1118 Accessibility_KeyDefinition *kd = l->data;
1119 #ifdef SPI_KEYEVENT_DEBUG
1120 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1124 (int) key_event->id,
1125 (int) key_event->hw_code,
1126 key_event->event_string);
1128 if (kd->keysym == (dbus_uint32_t) key_event->id)
1132 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1136 if (key_event->event_string && key_event->event_string[0] &&
1137 !strcmp (kd->keystring, key_event->event_string))
1147 eventtype_seq_contains_event (dbus_uint32_t types,
1148 const Accessibility_DeviceEvent *event)
1150 if (types == 0) /* special case, means "all events/any event" */
1155 return (types & (1 << event->type));
1159 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1160 DEControllerKeyListener *listener,
1161 dbus_bool_t is_system_global)
1163 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1164 key_set_contains_key (listener->keys, key_event) &&
1165 eventtype_seq_contains_event (listener->listener.types, key_event) &&
1166 (is_system_global == listener->mode->global))
1177 spi_controller_notify_keylisteners (SpiDEController *controller,
1178 Accessibility_DeviceEvent *key_event,
1179 dbus_bool_t is_system_global)
1182 GSList *notify = NULL, *l2;
1183 GList **key_listeners = &controller->key_listeners;
1184 gboolean is_consumed;
1191 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1192 if (key_event->modifiers & _numlock_physical_mask)
1193 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1195 for (l = *key_listeners; l; l = l->next)
1197 DEControllerKeyListener *key_listener = l->data;
1199 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1201 /* we clone (don't dup) the listener, to avoid refcount inc. */
1202 notify = g_slist_prepend (notify,
1203 spi_key_listener_clone (key_listener));
1207 #ifdef SPI_KEYEVENT_DEBUG
1210 g_print ("no match for event\n");
1214 is_consumed = FALSE;
1215 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1217 DEControllerKeyListener *key_listener = l2->data;
1219 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1220 key_listener->mode->preemptive;
1222 spi_key_listener_clone_free (key_listener);
1225 for (; l2; l2 = l2->next)
1227 DEControllerKeyListener *key_listener = l2->data;
1228 spi_key_listener_clone_free (key_listener);
1229 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1232 g_slist_free (notify);
1235 if (is_consumed) g_message ("consumed\n");
1241 spi_clear_error_state (void)
1243 gboolean retval = spi_error_code != 0;
1249 spi_controller_update_key_grabs (SpiDEController *controller,
1250 Accessibility_DeviceEvent *recv)
1253 gboolean update_failed = FALSE;
1256 g_return_val_if_fail (controller != NULL, FALSE);
1259 * masks known to work with default RH 7.1+:
1260 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1261 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1262 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1263 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1265 * ControlMask grabs are broken, must be in use already
1268 keycode = spi_dec_plat_get_keycode (controller, recv->id, NULL, TRUE, NULL);
1269 for (l = controller->keygrabs_list; l; l = next)
1272 gboolean re_issue_grab;
1273 DEControllerGrabMask *grab_mask = l->data;
1277 re_issue_grab = recv &&
1278 (recv->modifiers & grab_mask->mod_mask) &&
1279 (grab_mask->key_val == keycode);
1282 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1283 (long int) grab_mask->key_val,
1284 (long int) grab_mask->mod_mask,
1285 grab_mask->pending_add ? '+' : '.',
1286 grab_mask->pending_remove ? '-' : '.',
1287 re_issue_grab ? "re-issue": "");
1292 if (grab_mask->pending_add && grab_mask->pending_remove)
1296 else if (grab_mask->pending_remove)
1299 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1301 spi_dec_plat_ungrab_key (controller,
1303 grab_mask->mod_mask);
1307 else if (grab_mask->pending_add || re_issue_grab)
1311 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1313 update_failed = spi_dec_plat_grab_key (controller,
1315 grab_mask->mod_mask);
1316 if (update_failed) {
1317 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1322 grab_mask->pending_add = FALSE;
1323 grab_mask->pending_remove = FALSE;
1327 g_assert (grab_mask->ref_count <= 0);
1329 controller->keygrabs_list = g_list_delete_link (
1330 controller->keygrabs_list, l);
1332 spi_grab_mask_free (grab_mask);
1337 return ! update_failed;
1341 * Implemented GObject::finalize
1344 spi_device_event_controller_object_finalize (GObject *object)
1346 SpiDEController *controller;
1347 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1348 SpiDEControllerClass *klass;
1350 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1351 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
1353 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1355 if (klass->plat.finalize)
1356 klass->plat.finalize (controller);
1358 parent_class->finalize (object);
1362 * DBus Accessibility::DEController::RegisterKeystrokeListener
1363 * method implementation
1365 static DBusMessage *
1366 impl_register_keystroke_listener (DBusConnection *bus,
1367 DBusMessage *message,
1370 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1371 DEControllerKeyListener *dec_listener;
1372 DBusMessageIter iter, iter_array;
1374 GSList *keys = NULL;
1375 dbus_int32_t mask, type;
1376 Accessibility_EventListenerMode *mode;
1378 DBusMessage *reply = NULL;
1381 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu(bbb)") != 0)
1382 return invalid_arguments_error (message);
1384 dbus_message_iter_init(message, &iter);
1385 dbus_message_iter_get_basic(&iter, &path);
1386 dbus_message_iter_next(&iter);
1387 dbus_message_iter_recurse(&iter, &iter_array);
1388 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1390 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1391 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))
1396 kd->keystring = g_strdup (keystring);
1397 keys = g_slist_append(keys, kd);
1399 dbus_message_iter_next(&iter);
1400 dbus_message_iter_get_basic(&iter, &mask);
1401 dbus_message_iter_next(&iter);
1402 dbus_message_iter_get_basic(&iter, &type);
1403 dbus_message_iter_next(&iter);
1404 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1407 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);
1410 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1411 dbus_message_get_sender(message), path, (unsigned long) mask);
1413 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1415 ret = spi_controller_register_device_listener (
1416 controller, (DEControllerListener *) dec_listener);
1417 reply = dbus_message_new_method_return (message);
1420 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1426 * DBus Accessibility::DEController::RegisterDeviceEventListener
1427 * method implementation
1429 static DBusMessage *
1430 impl_register_device_event_listener (DBusConnection *bus,
1431 DBusMessage *message,
1434 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1435 DEControllerListener *dec_listener;
1437 dbus_int32_t event_types;
1439 DBusMessage *reply = NULL;
1441 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1443 return invalid_arguments_error (message);
1445 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1446 ret = spi_controller_register_device_listener (
1447 controller, (DEControllerListener *) dec_listener);
1448 reply = dbus_message_new_method_return (message);
1451 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1457 DBusConnection *bus;
1458 DEControllerListener *listener;
1459 } RemoveListenerClosure;
1461 static SpiReEntrantContinue
1462 remove_listener_cb (GList * const *list,
1465 DEControllerListener *listener = (*list)->data;
1466 RemoveListenerClosure *ctx = user_data;
1468 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1469 !strcmp(ctx->listener->path, listener->path))
1471 spi_re_entrant_list_delete_link (list);
1472 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1473 spi_dec_listener_free (listener);
1476 return SPI_RE_ENTRANT_CONTINUE;
1479 static SpiReEntrantContinue
1480 copy_key_listener_cb (GList * const *list,
1483 DEControllerKeyListener *key_listener = (*list)->data;
1484 RemoveListenerClosure *ctx = user_data;
1486 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1487 !strcmp(ctx->listener->path, key_listener->listener.path))
1489 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1490 DEControllerKeyListener *ctx_key_listener =
1491 (DEControllerKeyListener *) ctx->listener;
1492 keylist_free (ctx_key_listener->keys);
1493 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1496 return SPI_RE_ENTRANT_CONTINUE;
1500 spi_controller_deregister_device_listener (SpiDEController *controller,
1501 DEControllerListener *listener)
1503 RemoveListenerClosure ctx;
1505 ctx.bus = controller->bus;
1506 ctx.listener = listener;
1508 notify_mouse_listener (controller, listener, FALSE);
1510 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1511 remove_listener_cb, &ctx);
1512 if (!controller->mouse_listeners)
1513 have_mouse_listener = FALSE;
1517 spi_deregister_controller_key_listener (SpiDEController *controller,
1518 DEControllerKeyListener *key_listener)
1520 RemoveListenerClosure ctx;
1522 ctx.bus = controller->bus;
1523 ctx.listener = (DEControllerListener *) spi_key_listener_clone (key_listener);
1525 notify_keystroke_listener (controller, key_listener, FALSE);
1527 /* special case, copy keyset from existing controller list entry */
1528 if (g_slist_length(key_listener->keys) == 0)
1530 spi_re_entrant_list_foreach (&controller->key_listeners,
1531 copy_key_listener_cb, &ctx);
1534 spi_controller_deregister_global_keygrabs (controller, key_listener);
1536 spi_re_entrant_list_foreach (&controller->key_listeners,
1537 remove_listener_cb, &ctx);
1539 spi_key_listener_clone_free ((DEControllerKeyListener *) ctx.listener);
1543 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1547 for (l = controller->mouse_listeners; l; l = tmp)
1549 DEControllerListener *listener = l->data;
1551 if (!strcmp (listener->bus_name, bus_name))
1553 spi_controller_deregister_device_listener (controller, listener);
1554 tmp = controller->mouse_listeners;
1557 for (l = controller->key_listeners; l; l = tmp)
1559 DEControllerKeyListener *key_listener = l->data;
1561 if (!strcmp (key_listener->listener.bus_name, bus_name))
1563 /* TODO: untangle the below line(s) */
1564 spi_deregister_controller_key_listener (controller, key_listener);
1565 tmp = controller->key_listeners;
1571 * DBus Accessibility::DEController::DeregisterKeystrokeListener
1572 * method implementation
1574 static DBusMessage *
1575 impl_deregister_keystroke_listener (DBusConnection *bus,
1576 DBusMessage *message,
1579 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1580 DEControllerKeyListener *key_listener;
1581 DBusMessageIter iter, iter_array;
1583 GSList *keys = NULL;
1584 dbus_int32_t mask, type;
1585 DBusMessage *reply = NULL;
1587 dbus_message_iter_init(message, &iter);
1588 if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu") != 0)
1590 g_warning ("Received DeregisterKeystrokeListener with strange signature '%s'", dbus_message_get_signature (message));
1591 return invalid_arguments_error (message);
1594 dbus_message_iter_get_basic(&iter, &path);
1595 dbus_message_iter_next(&iter);
1596 dbus_message_iter_recurse(&iter, &iter_array);
1597 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1599 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1602 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))
1607 kd->keystring = g_strdup (keystring);
1608 keys = g_slist_append(keys, kd);
1610 dbus_message_iter_next(&iter);
1611 dbus_message_iter_get_basic(&iter, &mask);
1612 dbus_message_iter_next(&iter);
1613 dbus_message_iter_get_basic(&iter, &type);
1614 dbus_message_iter_next(&iter);
1615 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1616 #ifdef SPI_DEREGISTER_DEBUG
1617 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1618 (void *) l, (unsigned long) mask->value);
1621 spi_deregister_controller_key_listener (controller, key_listener);
1623 spi_dec_listener_free ((DEControllerListener *) key_listener);
1624 reply = dbus_message_new_method_return (message);
1629 * DBus Accessibility::DEController::DeregisterDeviceEventListener
1630 * method implementation
1632 static DBusMessage *
1633 impl_deregister_device_event_listener (DBusConnection *bus,
1634 DBusMessage *message,
1637 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1638 DEControllerListener *listener;
1640 dbus_int32_t event_types;
1641 DBusMessage *reply = NULL;
1643 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1645 return invalid_arguments_error (message);
1647 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1648 spi_controller_deregister_device_listener (
1649 controller, listener);
1650 reply = dbus_message_new_method_return (message);
1654 static DBusMessage *
1655 impl_get_keystroke_listeners (DBusConnection *bus,
1656 DBusMessage *message,
1659 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1660 DBusMessageIter iter, iter_array;
1661 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 "(souua(iisi)u(bbb))", &iter_array);
1670 for (l = controller->key_listeners; l; l = l->next)
1672 append_keystroke_listener (&iter_array, l->data);
1674 dbus_message_iter_close_container (&iter, &iter_array);
1678 static DBusMessage *
1679 impl_get_device_event_listeners (DBusConnection *bus,
1680 DBusMessage *message,
1683 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1684 DBusMessageIter iter, iter_array;
1686 DBusMessage *reply = dbus_message_new_method_return (message);
1691 dbus_message_iter_init_append (reply, &iter);
1692 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1693 "(sou)", &iter_array);
1694 for (l = controller->key_listeners; l; l = l->next)
1696 append_mouse_listener (&iter_array, l->data);
1698 dbus_message_iter_close_container (&iter, &iter_array);
1703 get_modifier_state (SpiDEController *controller)
1705 spi_dec_poll_mouse_moved (controller);
1706 return mouse_mask_state;
1710 spi_dec_synth_keysym (SpiDEController *controller, long keysym)
1712 long key_synth_code;
1713 unsigned int modifiers, synth_mods, lock_mods;
1715 key_synth_code = spi_dec_plat_get_keycode (controller, keysym, NULL, TRUE, &synth_mods);
1717 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1719 /* TODO: set the modifiers accordingly! */
1720 modifiers = get_modifier_state (controller);
1721 /* side-effect; we may unset mousebutton modifiers here! */
1724 if (synth_mods != modifiers) {
1725 lock_mods = synth_mods & ~modifiers;
1726 spi_dec_plat_lock_modifiers (controller, lock_mods);
1727 if (modifiers & SPI_KEYMASK_SHIFTLOCK)
1728 spi_dec_plat_unlock_modifiers (controller, SPI_KEYMASK_SHIFTLOCK);
1730 spi_dec_plat_synth_keycode_press (controller, key_synth_code);
1731 spi_dec_plat_synth_keycode_release (controller, key_synth_code);
1733 if (synth_mods != modifiers) {
1734 spi_dec_plat_unlock_modifiers (controller, lock_mods);
1735 if (modifiers & SPI_KEYMASK_SHIFTLOCK)
1736 spi_dec_plat_lock_modifiers (controller, SPI_KEYMASK_SHIFTLOCK);
1744 * DBus Accessibility::DEController::RegisterKeystrokeListener
1745 * method implementation
1747 static DBusMessage *
1748 impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1750 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1751 dbus_int32_t keycode;
1753 dbus_uint32_t synth_type;
1754 DBusMessage *reply = NULL;
1756 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
1758 return invalid_arguments_error (message);
1762 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1763 (long) keycode, (int) synth_type);
1765 /* TODO: hide/wrap/remove X dependency */
1768 * TODO: when initializing, query for XTest extension before using,
1769 * and fall back to XSendEvent() if XTest is not available.
1774 case Accessibility_KEY_PRESS:
1775 spi_dec_plat_synth_keycode_press (controller, keycode);
1777 case Accessibility_KEY_PRESSRELEASE:
1778 spi_dec_plat_synth_keycode_press (controller, keycode);
1779 case Accessibility_KEY_RELEASE:
1780 spi_dec_plat_synth_keycode_release (controller, keycode);
1782 case Accessibility_KEY_SYM:
1783 #ifdef SPI_XKB_DEBUG
1784 fprintf (stderr, "KeySym synthesis\n");
1787 * note: we are using long for 'keycode'
1788 * in our arg list; it can contain either
1789 * a keycode or a keysym.
1791 spi_dec_synth_keysym (controller, keycode);
1793 case Accessibility_KEY_STRING:
1794 if (!spi_dec_plat_synth_keystring (controller, synth_type, keycode, keystring))
1795 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
1798 case Accessibility_KEY_LOCKMODIFIERS:
1799 spi_dec_plat_lock_modifiers (controller, keycode);
1801 case Accessibility_KEY_UNLOCKMODIFIERS:
1802 spi_dec_plat_unlock_modifiers (controller, keycode);
1805 reply = dbus_message_new_method_return (message);
1809 /* Accessibility::DEController::GenerateMouseEvent */
1810 static DBusMessage *
1811 impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1816 DBusMessage *reply = NULL;
1818 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
1820 return invalid_arguments_error (message);
1824 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1825 eventName, (long int) x, (long int) y);
1827 spi_dec_plat_generate_mouse_event (saved_controller, x, y, eventName);
1828 reply = dbus_message_new_method_return (message);
1832 /* Accessibility::DEController::NotifyListenersSync */
1833 static DBusMessage *
1834 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
1836 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1837 Accessibility_DeviceEvent event;
1839 DBusMessage *reply = NULL;
1841 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1843 return invalid_arguments_error (message);
1846 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1847 controller, (int) event.id);
1849 ret = spi_controller_notify_keylisteners (controller,
1850 (Accessibility_DeviceEvent *)
1853 reply = dbus_message_new_method_return (message);
1856 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1861 static DBusMessage *
1862 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
1864 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1865 Accessibility_DeviceEvent event;
1866 DBusMessage *reply = NULL;
1868 if (!spi_dbus_demarshal_deviceEvent(message, &event))
1870 return invalid_arguments_error (message);
1873 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
1874 controller, (int) event.id);
1876 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
1878 reply = dbus_message_new_method_return (message);
1883 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1885 GObjectClass * object_class = (GObjectClass *) klass;
1887 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1889 object_class->finalize = spi_device_event_controller_object_finalize;
1892 if (g_getenv ("DISPLAY") != NULL && g_getenv ("WAYLAND_DISPLAY") == NULL)
1893 spi_dec_setup_x11 (klass);
1898 spi_device_event_controller_init (SpiDEController *device_event_controller)
1900 SpiDEControllerClass *klass;
1901 klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (device_event_controller);
1903 device_event_controller->message_queue = g_queue_new ();
1904 saved_controller = device_event_controller;
1906 if (klass->plat.init)
1907 klass->plat.init (device_event_controller);
1911 /*---------------------------------------------------------------------------*/
1913 static const char *introspection_header =
1914 "<?xml version=\"1.0\"?>\n";
1916 static const char *introspection_node_element =
1917 "<node name=\"%s\">\n";
1919 static const char *introspection_footer =
1922 static DBusMessage *
1923 impl_Introspect (DBusConnection * bus,
1924 DBusMessage * message, void *user_data)
1929 const gchar *pathstr = SPI_DBUS_PATH_DEC;
1933 output = g_string_new(introspection_header);
1935 g_string_append_printf(output, introspection_node_element, pathstr);
1937 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
1939 g_string_append(output, introspection_footer);
1940 final = g_string_free(output, FALSE);
1942 reply = dbus_message_new_method_return (message);
1943 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
1949 /*---------------------------------------------------------------------------*/
1952 handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
1954 const gchar *iface = dbus_message_get_interface (message);
1955 const gchar *member = dbus_message_get_member (message);
1956 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1957 DBusMessage *reply = NULL;
1959 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
1961 result = DBUS_HANDLER_RESULT_HANDLED;
1962 if (!strcmp (member, "RegisterKeystrokeListener"))
1963 reply = impl_register_keystroke_listener (bus, message, user_data);
1964 else if (!strcmp (member, "RegisterDeviceEventListener"))
1965 reply = impl_register_device_event_listener (bus, message, user_data);
1966 else if (!strcmp (member, "DeregisterKeystrokeListener"))
1967 reply = impl_deregister_keystroke_listener (bus, message, user_data);
1968 else if (!strcmp (member, "DeregisterDeviceEventListener"))
1969 reply = impl_deregister_device_event_listener (bus, message, user_data);
1970 else if (!strcmp (member, "GetKeystrokeListeners"))
1971 reply = impl_get_keystroke_listeners (bus, message, user_data);
1972 else if (!strcmp (member, "GetDeviceEventListeners"))
1973 reply = impl_get_device_event_listeners (bus, message, user_data);
1974 else if (!strcmp (member, "GenerateKeyboardEvent"))
1975 reply = impl_generate_keyboard_event (bus, message, user_data);
1976 else if (!strcmp (member, "GenerateMouseEvent"))
1977 reply = impl_generate_mouse_event (bus, message, user_data);
1978 else if (!strcmp (member, "NotifyListenersSync"))
1979 reply = impl_notify_listeners_sync (bus, message, user_data);
1980 else if (!strcmp (member, "NotifyListenersAsync"))
1981 reply = impl_notify_listeners_async (bus, message, user_data);
1983 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1986 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
1988 result = DBUS_HANDLER_RESULT_HANDLED;
1989 if (!strcmp (member, "Introspect"))
1990 reply = impl_Introspect (bus, message, user_data);
1992 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1995 if (result == DBUS_HANDLER_RESULT_HANDLED)
1999 reply = dbus_message_new_method_return (message);
2002 dbus_connection_send (bus, reply, NULL);
2003 dbus_message_unref (reply);
2008 message_queue_dispatch (gpointer data)
2010 saved_controller->message_queue_idle = 0;
2011 while (!g_queue_is_empty (saved_controller->message_queue))
2013 DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
2014 data = g_queue_pop_head (saved_controller->message_queue);
2015 handle_dec_method_from_idle (saved_controller->bus, message, data);
2016 dbus_message_unref (message);
2021 static DBusHandlerResult
2022 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2024 const gchar *iface = dbus_message_get_interface (message);
2025 const gchar *member = dbus_message_get_member (message);
2026 const gint type = dbus_message_get_type (message);
2028 /* Check for basic reasons not to handle */
2029 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2032 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2034 dbus_message_ref (message);
2035 g_queue_push_tail (saved_controller->message_queue, message);
2036 g_queue_push_tail (saved_controller->message_queue, user_data);
2037 if (!saved_controller->message_queue_idle) {
2038 saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2039 g_source_set_name_by_id (saved_controller->message_queue_idle, "[at-spi2-core] message_queue_dispatch");
2041 return DBUS_HANDLER_RESULT_HANDLED;
2044 static DBusObjectPathVTable dec_vtable =
2048 NULL, NULL, NULL, NULL
2052 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2054 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2056 dec->registry = g_object_ref (reg);
2057 reg->dec = g_object_ref (dec);
2060 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2066 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2068 if (!have_mouse_event_listener)
2070 have_mouse_event_listener = TRUE;
2071 if (!have_mouse_listener) {
2073 id = g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2074 g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
2080 spi_device_event_controller_stop_poll_mouse (void)
2082 have_mouse_event_listener = FALSE;