2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001 Sun Microsystems Inc.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
23 /* deviceeventcontroller.c: implement the DeviceEventController interface */
28 #undef SPI_KEYEVENT_DEBUG
33 #include <bonobo/bonobo-exception.h>
36 #include <X11/extensions/XTest.h>
38 #include <X11/keysymdef.h>
40 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
41 #include <gdk/gdkkeysyms.h>
42 #include <gdk/gdkwindow.h>
44 #include "../libspi/spi-private.h"
45 #include "deviceeventcontroller.h"
47 /* Our parent Gtk object type */
48 #define PARENT_TYPE BONOBO_TYPE_OBJECT
50 /* A pointer to our parent object class */
51 static GObjectClass *spi_device_event_controller_parent_class;
52 static int spi_error_code = 0;
54 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
58 SPI_DEVICE_TYPE_MOUSE,
59 SPI_DEVICE_TYPE_LAST_DEFINED
60 } SpiDeviceTypeCategory;
64 guint pending_add : 1;
65 guint pending_remove : 1;
67 Accessibility_ControllerEventMask mod_mask;
68 CORBA_unsigned_long key_val; /* KeyCode */
69 } DEControllerGrabMask;
73 SpiDeviceTypeCategory type;
74 } DEControllerListener;
77 DEControllerListener listener;
79 Accessibility_KeySet *keys;
80 Accessibility_ControllerEventMask mask;
81 Accessibility_KeyEventTypeSeq *typeseq;
82 Accessibility_EventListenerMode *mode;
83 } DEControllerKeyListener;
85 static void spi_controller_register_with_devices (SpiDEController *controller);
86 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
87 Accessibility_DeviceEvent *recv);
88 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
89 DEControllerListener *l,
90 CORBA_Environment *ev);
91 static void spi_device_event_controller_forward_key_event (SpiDEController *controller,
93 static void spi_deregister_controller_key_listener (SpiDEController *controller,
94 DEControllerKeyListener *key_listener,
95 CORBA_Environment *ev);
97 static gboolean spi_clear_error_state (void);
99 #define spi_get_display() GDK_DISPLAY()
101 /* Private methods */
104 keycode_for_keysym (long keysym)
106 return XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
109 static DEControllerGrabMask *
110 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
112 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
114 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
116 clone->ref_count = 1;
117 clone->pending_add = TRUE;
118 clone->pending_remove = FALSE;
124 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
130 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
132 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
133 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
141 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
145 static DEControllerKeyListener *
146 spi_dec_key_listener_new (CORBA_Object l,
147 const Accessibility_KeySet *keys,
148 const Accessibility_ControllerEventMask mask,
149 const Accessibility_KeyEventTypeSeq *typeseq,
150 const Accessibility_EventListenerMode *mode,
151 CORBA_Environment *ev)
153 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
154 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
155 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
156 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
157 key_listener->mask = mask;
158 key_listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_KeyEventTypeSeq);
160 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
162 key_listener->mode = NULL;
165 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
166 (unsigned int) key_listener->mask,
167 (int) (mode ? mode->global : 0),
168 (void *) key_listener->keys,
169 (int) (key_listener->keys ? key_listener->keys->_length : 0));
175 static DEControllerKeyListener *
176 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
178 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
179 clone->listener.object =
180 CORBA_Object_duplicate (key_listener->listener.object, ev);
181 clone->listener.type = SPI_DEVICE_TYPE_KBD;
182 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
183 clone->mask = key_listener->mask;
184 clone->typeseq = ORBit_copy_value (key_listener->typeseq, TC_Accessibility_KeyEventTypeSeq);
185 if (key_listener->mode)
186 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
193 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
195 CORBA_free (key_listener->typeseq);
196 CORBA_free (key_listener->keys);
197 g_free (key_listener);
201 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
203 CORBA_Object_release (clone->listener.object, ev);
204 spi_key_listener_data_free (clone, ev);
208 spi_dec_key_listener_free (DEControllerKeyListener *key_listener,
209 CORBA_Environment *ev)
211 bonobo_object_release_unref (key_listener->listener.object, ev);
212 spi_key_listener_data_free (key_listener, ev);
216 _register_keygrab (SpiDEController *controller,
217 DEControllerGrabMask *grab_mask)
221 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
222 spi_grab_mask_compare_values);
225 DEControllerGrabMask *cur_mask = l->data;
227 cur_mask->ref_count++;
228 if (cur_mask->pending_remove)
230 cur_mask->pending_remove = FALSE;
235 controller->keygrabs_list =
236 g_list_prepend (controller->keygrabs_list,
237 spi_grab_mask_clone (grab_mask));
242 _deregister_keygrab (SpiDEController *controller,
243 DEControllerGrabMask *grab_mask)
247 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
248 spi_grab_mask_compare_values);
252 DEControllerGrabMask *cur_mask = l->data;
254 cur_mask->ref_count--;
255 if (cur_mask->ref_count <= 0)
257 cur_mask->pending_remove = TRUE;
262 g_warning ("De-registering non-existant grab");
267 handle_keygrab (SpiDEController *controller,
268 DEControllerKeyListener *key_listener,
269 void (*process_cb) (SpiDEController *controller,
270 DEControllerGrabMask *grab_mask))
272 DEControllerGrabMask grab_mask = { 0 };
274 grab_mask.mod_mask = key_listener->mask;
275 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
277 grab_mask.key_val = AnyKey;
279 fprintf (stderr, "AnyKey grab!"); */
281 process_cb (controller, &grab_mask);
287 for (i = 0; i < key_listener->keys->_length; ++i)
289 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
290 long int key_val = keydef.keysym;
291 /* X Grabs require keycodes, not keysyms */
292 if (keydef.keystring && keydef.keystring[0])
294 key_val = XStringToKeysym(keydef.keystring);
298 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
302 key_val = keydef.keycode;
304 grab_mask.key_val = key_val;
305 process_cb (controller, &grab_mask);
311 spi_controller_register_global_keygrabs (SpiDEController *controller,
312 DEControllerKeyListener *key_listener)
314 handle_keygrab (controller, key_listener, _register_keygrab);
315 return spi_controller_update_key_grabs (controller, NULL);
319 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
320 DEControllerKeyListener *key_listener)
322 handle_keygrab (controller, key_listener, _deregister_keygrab);
323 spi_controller_update_key_grabs (controller, NULL);
327 spi_controller_register_device_listener (SpiDEController *controller,
328 DEControllerListener *listener,
329 CORBA_Environment *ev)
331 DEControllerKeyListener *key_listener;
333 switch (listener->type) {
334 case SPI_DEVICE_TYPE_KBD:
335 key_listener = (DEControllerKeyListener *) listener;
337 controller->key_listeners = g_list_prepend (controller->key_listeners,
339 if (key_listener->mode->global)
341 return spi_controller_register_global_keygrabs (controller, key_listener);
352 static GdkFilterReturn
353 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
355 XEvent *xevent = gdk_xevent;
356 SpiDEController *controller;
358 if (xevent->type != KeyPress && xevent->type != KeyRelease)
360 return GDK_FILTER_CONTINUE;
363 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
365 spi_device_event_controller_forward_key_event (controller, xevent);
367 /* FIXME: is this right ? */
368 return GDK_FILTER_CONTINUE;
372 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
374 if (error->error_code == BadAccess)
376 g_message ("Could not complete key grab: grab already in use.\n");
377 spi_error_code = BadAccess;
382 return (*x_default_error_handler) (display, error);
387 spi_controller_register_with_devices (SpiDEController *controller)
389 /* calls to device-specific implementations and routines go here */
390 /* register with: keyboard hardware code handler */
391 /* register with: (translated) keystroke handler */
393 gdk_window_add_filter (NULL, global_filter_fn, controller);
395 gdk_window_set_events (gdk_get_default_root_window (),
396 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
398 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
401 #define SPI_KEYEVENT_DEBUG
403 spi_key_set_contains_key (Accessibility_KeySet *key_set,
404 const Accessibility_DeviceEvent *key_event)
411 g_print ("null key set!");
415 len = key_set->_length;
417 if (len == 0) /* special case, means "all keys/any key" */
419 g_print ("anykey\n");
423 for (i = 0; i < len; ++i)
425 #ifdef SPI_KEYEVENT_DEBUG
426 g_print ("key_set[%d] = %d; key_event %d, code %d, string %s\n",
427 i, (int) key_set->_buffer[i].keycode,
428 (int) key_event->id, (int) key_event->hw_code,
429 key_event->event_string);
431 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
435 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
439 if (key_event->event_string && key_event->event_string[0] &&
440 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
450 spi_key_eventtype_seq_contains_event (Accessibility_KeyEventTypeSeq *type_seq,
451 const Accessibility_DeviceEvent *key_event)
459 g_print ("null type seq!");
463 len = type_seq->_length;
465 if (len == 0) /* special case, means "all events/any event" */
470 for (i = 0; i < len; ++i)
473 g_print ("type_seq[%d] = %d; key event type = %d\n", i,
474 (int) type_seq->_buffer[i], (int) key_event->type);
476 if (type_seq->_buffer[i] == (CORBA_long) key_event->type)
486 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
487 DEControllerKeyListener *listener,
488 CORBA_boolean is_system_global)
490 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFFFF)) &&
491 spi_key_set_contains_key (listener->keys, key_event) &&
492 spi_key_eventtype_seq_contains_event (listener->typeseq, key_event) &&
493 (is_system_global == listener->mode->global))
504 spi_controller_notify_keylisteners (SpiDEController *controller,
505 const Accessibility_DeviceEvent *key_event,
506 CORBA_boolean is_system_global,
507 CORBA_Environment *ev)
510 GSList *notify = NULL, *l2;
511 GList **key_listeners = &controller->key_listeners;
512 gboolean is_consumed;
519 for (l = *key_listeners; l; l = l->next)
521 DEControllerKeyListener *key_listener = l->data;
523 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
525 Accessibility_DeviceEventListener ls = key_listener->listener.object;
527 if (ls != CORBA_OBJECT_NIL)
529 /* we clone (don't dup) the listener, to avoid refcount inc. */
530 notify = g_slist_prepend (notify,
531 spi_key_listener_clone (key_listener, ev));
536 #ifdef SPI_KEYEVENT_DEBUG
539 g_print ("no match for event\n");
544 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
546 DEControllerKeyListener *key_listener = l2->data;
547 Accessibility_DeviceEventListener ls = key_listener->listener.object;
549 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
554 spi_deregister_controller_key_listener (controller, key_listener,
556 CORBA_exception_free (ev);
559 CORBA_Object_release (ls, ev);
562 for (; l2; l2 = l2->next)
564 DEControllerKeyListener *key_listener = l2->data;
565 spi_key_listener_clone_free (key_listener, ev);
566 /* clone doesn't have its own ref, so don't use spi_key_listener_free */
569 g_slist_free (notify);
572 if (is_consumed) g_message ("consumed\n");
578 spi_clear_error_state ()
580 gboolean retval = spi_error_code != 0;
585 static Accessibility_DeviceEvent
586 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
588 Accessibility_DeviceEvent key_event;
590 const int cbuf_bytes = 20;
591 char cbuf [cbuf_bytes];
593 keysym = XLookupKeysym (x_key_event, 0);
594 key_event.id = (CORBA_long)(keysym);
595 key_event.hw_code = (CORBA_short) x_key_event->keycode;
596 if (((XEvent *) x_key_event)->type == KeyPress)
598 key_event.type = Accessibility_KEY_PRESSED;
602 key_event.type = Accessibility_KEY_RELEASED;
604 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
605 key_event.is_text = CORBA_FALSE;
609 key_event.event_string = CORBA_string_dup ("space");
612 #ifdef SPI_KEYEVENT_DEBUG
613 fprintf(stderr, "Tab\n");
615 key_event.event_string = CORBA_string_dup ("Tab");
618 key_event.event_string = CORBA_string_dup ("Backspace");
621 key_event.event_string = CORBA_string_dup ("Return");
624 key_event.event_string = CORBA_string_dup ("Home");
627 key_event.event_string = CORBA_string_dup ("Page_Down");
630 key_event.event_string = CORBA_string_dup ("Page_Up");
633 key_event.event_string = CORBA_string_dup ("F1");
636 key_event.event_string = CORBA_string_dup ("F2");
639 key_event.event_string = CORBA_string_dup ("F3");
642 key_event.event_string = CORBA_string_dup ("F4");
645 key_event.event_string = CORBA_string_dup ("F5");
648 key_event.event_string = CORBA_string_dup ("F6");
651 key_event.event_string = CORBA_string_dup ("F7");
654 key_event.event_string = CORBA_string_dup ("F8");
657 key_event.event_string = CORBA_string_dup ("F9");
660 key_event.event_string = CORBA_string_dup ("F10");
663 key_event.event_string = CORBA_string_dup ("F11");
666 key_event.event_string = CORBA_string_dup ("F12");
669 key_event.event_string = CORBA_string_dup ("End");
672 key_event.event_string = CORBA_string_dup ("Escape");
675 key_event.event_string = CORBA_string_dup ("Up");
678 key_event.event_string = CORBA_string_dup ("Down");
681 key_event.event_string = CORBA_string_dup ("Left");
684 key_event.event_string = CORBA_string_dup ("Right");
687 if (XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL) > 0)
689 key_event.event_string = CORBA_string_dup (cbuf);
690 if (isgraph (keysym))
692 key_event.is_text = CORBA_TRUE; /* FIXME: incorrect for some composed chars? */
697 key_event.event_string = CORBA_string_dup ("");
701 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
702 #ifdef SPI_KEYEVENT_DEBUG
704 "Key %lu pressed (%c), modifiers %d\n",
705 (unsigned long) keysym,
706 keysym ? (int) keysym : '*',
707 (int) x_key_event->state);
710 fprintf (stderr, "%s%c",
711 (x_key_event->state & Mod1Mask)?"Alt-":"",
712 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
713 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
714 #endif /* SPI_DEBUG */
719 spi_controller_update_key_grabs (SpiDEController *controller,
720 Accessibility_DeviceEvent *recv)
723 gboolean update_failed = FALSE;
725 g_return_val_if_fail (controller != NULL, FALSE);
728 * masks known to work with default RH 7.1+:
729 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
730 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
731 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
732 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
734 * ControlMask grabs are broken, must be in use already
736 for (l = controller->keygrabs_list; l; l = next)
739 gboolean re_issue_grab;
740 DEControllerGrabMask *grab_mask = l->data;
744 re_issue_grab = recv &&
745 /* (recv->type == Accessibility_KEY_RELEASED) && - (?) */
746 (recv->modifiers & grab_mask->mod_mask) &&
747 (grab_mask->key_val == keycode_for_keysym (recv->id));
750 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
751 (long int) grab_mask->key_val,
752 (long int) grab_mask->mod_mask,
753 grab_mask->pending_add ? '+' : '.',
754 grab_mask->pending_remove ? '-' : '.',
755 re_issue_grab ? "re-issue": "");
760 if (grab_mask->pending_add && grab_mask->pending_remove)
764 else if (grab_mask->pending_remove)
767 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
769 XUngrabKey (spi_get_display (),
772 gdk_x11_get_default_root_xwindow ());
776 else if (grab_mask->pending_add || re_issue_grab)
780 fprintf (stderr, "grab with mask %x\n", grab_mask->mod_mask);
782 XGrabKey (spi_get_display (),
785 gdk_x11_get_default_root_xwindow (),
789 XSync (spi_get_display (), False);
790 update_failed = spi_clear_error_state ();
792 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
797 grab_mask->pending_add = FALSE;
798 grab_mask->pending_remove = FALSE;
802 g_assert (grab_mask->ref_count <= 0);
804 controller->keygrabs_list = g_list_delete_link (
805 controller->keygrabs_list, l);
807 spi_grab_mask_free (grab_mask);
812 return ! update_failed;
816 * Implemented GObject::finalize
819 spi_device_event_controller_object_finalize (GObject *object)
821 SpiDEController *controller;
823 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
826 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
828 /* disconnect any special listeners, get rid of outstanding keygrabs */
829 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
831 spi_device_event_controller_parent_class->finalize (object);
835 * CORBA Accessibility::DEController::registerKeystrokeListener
836 * method implementation
839 impl_register_keystroke_listener (PortableServer_Servant servant,
840 const Accessibility_DeviceEventListener l,
841 const Accessibility_KeySet *keys,
842 const Accessibility_ControllerEventMask mask,
843 const Accessibility_KeyEventTypeSeq *type,
844 const Accessibility_EventListenerMode *mode,
845 CORBA_Environment *ev)
847 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
848 bonobo_object_from_servant (servant));
849 DEControllerKeyListener *dec_listener;
851 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
852 (void *) l, (unsigned long) mask);
854 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
855 return spi_controller_register_device_listener (
856 controller, (DEControllerListener *) dec_listener, ev);
861 CORBA_Environment *ev;
862 DEControllerKeyListener *key_listener;
863 } RemoveKeyListenerClosure;
865 static SpiReEntrantContinue
866 remove_key_listener_cb (GList * const *list,
869 DEControllerKeyListener *key_listener = (*list)->data;
870 RemoveKeyListenerClosure *ctx = user_data;
872 if (CORBA_Object_is_equivalent (ctx->key_listener->listener.object,
873 key_listener->listener.object, ctx->ev))
875 spi_re_entrant_list_delete_link (list);
876 spi_dec_key_listener_free (key_listener, ctx->ev);
879 return SPI_RE_ENTRANT_CONTINUE;
882 static SpiReEntrantContinue
883 copy_key_listener_cb (GList * const *list,
886 DEControllerKeyListener *key_listener = (*list)->data;
887 RemoveKeyListenerClosure *ctx = user_data;
889 if (CORBA_Object_is_equivalent (ctx->key_listener->listener.object,
890 key_listener->listener.object, ctx->ev))
892 /* TODO: FIXME aggregate keys in case the listener is registered twice */
893 CORBA_free (ctx->key_listener->keys);
894 ctx->key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
897 return SPI_RE_ENTRANT_CONTINUE;
902 spi_deregister_controller_key_listener (SpiDEController *controller,
903 DEControllerKeyListener *key_listener,
904 CORBA_Environment *ev)
906 RemoveKeyListenerClosure ctx;
909 ctx.key_listener = key_listener;
911 /* special case, copy keyset from existing controller list entry */
912 if (key_listener->keys->_length == 0)
914 spi_re_entrant_list_foreach (&controller->key_listeners,
915 copy_key_listener_cb, &ctx);
918 spi_controller_deregister_global_keygrabs (controller, key_listener);
920 spi_re_entrant_list_foreach (&controller->key_listeners,
921 remove_key_listener_cb, &ctx);
926 * CORBA Accessibility::DEController::deregisterKeystrokeListener
927 * method implementation
930 impl_deregister_keystroke_listener (PortableServer_Servant servant,
931 const Accessibility_DeviceEventListener l,
932 const Accessibility_KeySet *keys,
933 const Accessibility_ControllerEventMask mask,
934 const Accessibility_KeyEventTypeSeq *type,
935 CORBA_Environment *ev)
937 DEControllerKeyListener *key_listener;
938 SpiDEController *controller;
940 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
942 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
944 #ifdef SPI_DEREGISTER_DEBUG
945 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
946 (void *) l, (unsigned long) mask->value);
949 spi_deregister_controller_key_listener (controller, key_listener, ev);
951 spi_dec_key_listener_free (key_listener, ev);
955 * CORBA Accessibility::DEController::registerKeystrokeListener
956 * method implementation
959 impl_generate_keyboard_event (PortableServer_Servant servant,
960 const CORBA_long keycode,
961 const CORBA_char *keystring,
962 const Accessibility_KeySynthType synth_type,
963 CORBA_Environment *ev)
968 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
969 (long) keycode, (int) synth_type);
971 /* TODO: hide/wrap/remove X dependency */
973 /* TODO: be accessX-savvy so that keyrelease occurs after sufficient timeout */
976 * TODO: when initializing, query for XTest extension before using,
977 * and fall back to XSendEvent() if XTest is not available.
980 /* TODO: implement keystring mode also */
981 gdk_error_trap_push ();
985 case Accessibility_KEY_PRESS:
986 XTestFakeKeyEvent (spi_get_display (), (unsigned int) keycode, True, CurrentTime);
988 case Accessibility_KEY_PRESSRELEASE:
989 XTestFakeKeyEvent (spi_get_display (), (unsigned int) keycode, True, CurrentTime);
990 case Accessibility_KEY_RELEASE:
991 XTestFakeKeyEvent (spi_get_display (), (unsigned int) keycode, False, CurrentTime);
993 case Accessibility_KEY_SYM:
994 key_synth_code = keycode_for_keysym (keycode);
995 XTestFakeKeyEvent (spi_get_display (), (unsigned int) key_synth_code, True, CurrentTime);
996 XTestFakeKeyEvent (spi_get_display (), (unsigned int) key_synth_code, False, CurrentTime);
998 case Accessibility_KEY_STRING:
999 fprintf (stderr, "Not yet implemented\n");
1002 if (gdk_error_trap_pop ())
1004 g_warning ("Error emitting keystroke");
1008 /* Accessibility::DEController::generateMouseEvent */
1010 impl_generate_mouse_event (PortableServer_Servant servant,
1013 const CORBA_char *eventName,
1014 CORBA_Environment *ev)
1017 gboolean error = FALSE;
1018 Display *display = spi_get_display ();
1020 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1021 eventName, (long int) x, (long int) y);
1023 g_message ("mouse event synthesis\n");
1024 switch (eventName[0])
1027 switch (eventName[1])
1029 /* TODO: check number of buttons before parsing */
1044 if (x != -1 && y != -1)
1046 XTestFakeMotionEvent (display, DefaultScreen (display),
1049 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
1050 if (eventName[2] == 'c')
1051 XTestFakeButtonEvent (display, button, FALSE, 1);
1052 else if (eventName[2] == 'd')
1054 XTestFakeButtonEvent (display, button, FALSE, 1);
1055 XTestFakeButtonEvent (display, button, TRUE, 2);
1056 XTestFakeButtonEvent (display, button, FALSE, 3);
1060 case 'r': /* relative motion */
1061 XTestFakeRelativeMotionEvent (display, x, y, 0);
1063 case 'a': /* absolute motion */
1064 XTestFakeMotionEvent (display, DefaultScreen (display),
1070 /* Accessibility::DEController::notifyListenersSync */
1071 static CORBA_boolean
1072 impl_notify_listeners_sync (PortableServer_Servant servant,
1073 const Accessibility_DeviceEvent *event,
1074 CORBA_Environment *ev)
1076 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1077 bonobo_object_from_servant (servant));
1079 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1080 controller, (int) event->id);
1082 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
1083 CORBA_TRUE : CORBA_FALSE;
1086 /* Accessibility::DEController::notifyListenersAsync */
1088 impl_notify_listeners_async (PortableServer_Servant servant,
1089 const Accessibility_DeviceEvent *event,
1090 CORBA_Environment *ev)
1092 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1093 bonobo_object_from_servant (servant));
1095 fprintf (stderr, "notifying listeners asynchronously\n");
1097 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
1101 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1103 GObjectClass * object_class = (GObjectClass *) klass;
1104 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
1106 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1108 object_class->finalize = spi_device_event_controller_object_finalize;
1110 epv->registerKeystrokeListener = impl_register_keystroke_listener;
1111 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
1112 epv->generateKeyboardEvent = impl_generate_keyboard_event;
1113 epv->generateMouseEvent = impl_generate_mouse_event;
1114 epv->notifyListenersSync = impl_notify_listeners_sync;
1115 epv->notifyListenersAsync = impl_notify_listeners_async;
1119 spi_device_event_controller_init (SpiDEController *device_event_controller)
1121 device_event_controller->key_listeners = NULL;
1122 device_event_controller->mouse_listeners = NULL;
1123 device_event_controller->keygrabs_list = NULL;
1126 * TODO: fixme, this module makes the foolish assumptions that
1127 * registryd uses the same display as the apps, and that the
1128 * DISPLAY environment variable is set.
1130 gdk_init (NULL, NULL);
1132 spi_controller_register_with_devices (device_event_controller);
1136 spi_device_event_controller_forward_key_event (SpiDEController *controller,
1137 const XEvent *event)
1139 gboolean is_consumed = FALSE;
1140 CORBA_Environment ev;
1141 Accessibility_DeviceEvent key_event;
1143 g_assert (event->type == KeyPress || event->type == KeyRelease);
1145 CORBA_exception_init (&ev);
1147 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
1149 spi_controller_update_key_grabs (controller, &key_event);
1151 /* relay to listeners, and decide whether to consume it or not */
1152 is_consumed = spi_controller_notify_keylisteners (
1153 controller, &key_event, CORBA_TRUE, &ev);
1155 CORBA_exception_free (&ev);
1159 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
1163 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
1168 spi_device_event_controller_new (SpiRegistry *registry)
1170 SpiDEController *retval = g_object_new (
1171 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
1173 retval->registry = SPI_REGISTRY (bonobo_object_ref (
1174 BONOBO_OBJECT (registry)));
1179 BONOBO_TYPE_FUNC_FULL (SpiDEController,
1180 Accessibility_DeviceEventController,
1182 spi_device_event_controller);