1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2003 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
36 #include <bonobo/bonobo-exception.h>
39 #include <X11/extensions/XTest.h>
40 #include <X11/XKBlib.h>
43 #include <X11/keysymdef.h>
46 #include <X11/Xproto.h>
48 #include <X11/extensions/Xevie.h>
49 #endif /* HAVE_XEVIE */
52 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
53 #include <gdk/gdkkeysyms.h>
54 #include <gdk/gdkwindow.h>
56 #include "../libspi/spi-private.h"
57 #include "deviceeventcontroller.h"
59 KeySym ucs2keysym (long ucs);
60 long keysym2ucs(KeySym keysym);
62 #define CHECK_RELEASE_DELAY 20
63 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
64 static guint check_release_handler = 0;
65 static Accessibility_DeviceEvent pressed_event;
66 static SpiDEController *saved_controller;
67 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
69 /* Our parent Gtk object type */
70 #define PARENT_TYPE BONOBO_TYPE_OBJECT
72 /* A pointer to our parent object class */
73 static GObjectClass *spi_device_event_controller_parent_class;
74 static int spi_error_code = 0;
75 static GdkPoint last_mouse_pos_static = {0, 0};
76 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
77 static unsigned int mouse_mask_state = 0;
78 static unsigned int mouse_button_mask =
79 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
80 static unsigned int key_modifier_mask =
81 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
82 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
84 static GQuark spi_dec_private_quark = 0;
86 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
90 SPI_DEVICE_TYPE_MOUSE,
91 SPI_DEVICE_TYPE_LAST_DEFINED
92 } SpiDeviceTypeCategory;
96 guint pending_add : 1;
97 guint pending_remove : 1;
99 Accessibility_ControllerEventMask mod_mask;
100 CORBA_unsigned_long key_val; /* KeyCode */
101 } DEControllerGrabMask;
105 SpiDeviceTypeCategory type;
106 Accessibility_EventTypeSeq *typeseq;
107 } DEControllerListener;
110 DEControllerListener listener;
112 Accessibility_KeySet *keys;
113 Accessibility_ControllerEventMask mask;
114 Accessibility_EventListenerMode *mode;
115 } DEControllerKeyListener;
118 unsigned int last_press_keycode;
119 unsigned int last_release_keycode;
120 struct timeval last_press_time;
121 struct timeval last_release_time;
123 int xkb_major_extension_opcode;
124 int xkb_base_event_code;
125 int xkb_base_error_code;
126 unsigned int xkb_latch_mask;
127 unsigned int pending_xkb_mod_relatch_mask;
129 KeyCode reserved_keycode;
130 KeySym reserved_keysym;
131 guint reserved_reset_timeout;
132 } DEControllerPrivateData;
134 static void spi_controller_register_with_devices (SpiDEController *controller);
135 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
136 Accessibility_DeviceEvent *recv);
137 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
138 DEControllerListener *l,
139 CORBA_Environment *ev);
140 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
141 const XEvent *event);
142 static void spi_deregister_controller_device_listener (SpiDEController *controller,
143 DEControllerListener *listener,
144 CORBA_Environment *ev);
145 static void spi_deregister_controller_key_listener (SpiDEController *controller,
146 DEControllerKeyListener *key_listener,
147 CORBA_Environment *ev);
148 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
149 const Accessibility_DeviceEvent *event,
150 CORBA_Environment *ev);
152 static gboolean spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
153 const Accessibility_DeviceEvent *event);
154 static gboolean spi_clear_error_state (void);
155 static gboolean spi_dec_poll_mouse_moved (gpointer data);
156 static gboolean spi_dec_poll_mouse_moving (gpointer data);
157 static gboolean spi_dec_poll_mouse_idle (gpointer data);
159 #define spi_get_display() GDK_DISPLAY()
161 /* Private methods */
164 keysym_mod_mask (KeySym keysym, KeyCode keycode)
166 /* we really should use XKB and look directly at the keymap */
167 /* this is very inelegant */
168 Display *display = spi_get_display ();
169 unsigned int mods_rtn = 0;
170 unsigned int retval = 0;
173 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
174 (sym_rtn == keysym)) {
177 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
178 (sym_rtn == keysym)) {
181 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
182 (sym_rtn == keysym)) {
185 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
186 (sym_rtn == keysym)) {
189 else if (XkbLookupKeySym (display, keycode,
190 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
191 (sym_rtn == keysym)) {
192 retval = (Mod2Mask | ShiftMask);
194 else if (XkbLookupKeySym (display, keycode,
195 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
196 (sym_rtn == keysym)) {
197 retval = (Mod3Mask | ShiftMask);
199 else if (XkbLookupKeySym (display, keycode,
200 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
201 (sym_rtn == keysym)) {
202 retval = (Mod4Mask | ShiftMask);
210 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
213 Display *dpy = spi_get_display ();
215 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
217 fprintf (stderr, "ERROR getting map\n");
221 if (desc && desc->map)
223 gint offset = desc->map->key_sym_map[keycode].offset;
224 desc->map->syms[offset] = keysym;
228 fprintf (stderr, "Error changing key map: empty server structure\n");
230 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
232 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
233 * would be far preferable.
234 * HOWEVER it does not seem to work using XFree 4.3.
236 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
239 XkbFreeKeyboard (desc, 0, TRUE);
248 spi_dec_reset_reserved (gpointer data)
250 DEControllerPrivateData *priv = data;
251 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
252 priv->reserved_reset_timeout = 0;
257 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
260 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
263 DEControllerPrivateData *priv = (DEControllerPrivateData *)
264 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
265 /* if there's no keycode available, fix it */
266 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
268 keycode = priv->reserved_keycode;
270 * queue a timer to restore the old keycode. Ugly, but required
271 * due to races / asynchronous X delivery.
272 * Long-term fix is to extend the X keymap here instead of replace entries.
274 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
280 *modmask = keysym_mod_mask (keysym, keycode);
284 static DEControllerGrabMask *
285 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
287 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
289 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
291 clone->ref_count = 1;
292 clone->pending_add = TRUE;
293 clone->pending_remove = FALSE;
299 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
305 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
307 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
308 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
316 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
321 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
323 DEControllerPrivateData *priv =
324 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
326 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
327 priv->xkb_latch_mask);
329 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
333 spi_dec_clear_unlatch_pending (SpiDEController *controller)
335 DEControllerPrivateData *priv =
336 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
337 priv->xkb_latch_mask = 0;
341 spi_dec_button_update_and_emit (SpiDEController *controller,
344 CORBA_Environment ev;
345 Accessibility_Event e;
346 Accessibility_DeviceEvent mouse_e;
347 gchar event_name[24];
348 gboolean is_consumed = FALSE;
350 if ((mask_return & mouse_button_mask) !=
351 (mouse_mask_state & mouse_button_mask))
353 int button_number = 0;
354 gboolean is_down = False;
356 if (!(mask_return & Button1Mask) &&
357 (mouse_mask_state & Button1Mask))
359 mouse_mask_state &= ~Button1Mask;
362 else if ((mask_return & Button1Mask) &&
363 !(mouse_mask_state & Button1Mask))
365 mouse_mask_state |= Button1Mask;
369 else if (!(mask_return & Button2Mask) &&
370 (mouse_mask_state & Button2Mask))
372 mouse_mask_state &= ~Button2Mask;
375 else if ((mask_return & Button2Mask) &&
376 !(mouse_mask_state & Button2Mask))
378 mouse_mask_state |= Button2Mask;
382 else if (!(mask_return & Button3Mask) &&
383 (mouse_mask_state & Button3Mask))
385 mouse_mask_state &= ~Button3Mask;
388 else if ((mask_return & Button3Mask) &&
389 !(mouse_mask_state & Button3Mask))
391 mouse_mask_state |= Button3Mask;
395 else if (!(mask_return & Button4Mask) &&
396 (mouse_mask_state & Button4Mask))
398 mouse_mask_state &= ~Button4Mask;
401 else if ((mask_return & Button4Mask) &&
402 !(mouse_mask_state & Button4Mask))
404 mouse_mask_state |= Button4Mask;
408 else if (!(mask_return & Button5Mask) &&
409 (mouse_mask_state & Button5Mask))
411 mouse_mask_state &= ~Button5Mask;
414 else if ((mask_return & Button5Mask) &&
415 !(mouse_mask_state & Button5Mask))
417 mouse_mask_state |= Button5Mask;
423 fprintf (stderr, "Button %d %s\n",
424 button_number, (is_down) ? "Pressed" : "Released");
426 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
427 (is_down) ? 'p' : 'r');
428 /* TODO: FIXME distinguish between physical and
431 mouse_e.type = (is_down) ?
432 Accessibility_BUTTON_PRESSED_EVENT :
433 Accessibility_BUTTON_RELEASED_EVENT;
434 mouse_e.id = button_number;
435 mouse_e.hw_code = button_number;
436 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
437 mouse_e.timestamp = 0;
438 mouse_e.event_string = "";
439 mouse_e.is_text = CORBA_FALSE;
441 spi_controller_notify_mouselisteners (controller,
445 e.source = BONOBO_OBJREF (controller->registry->desktop);
446 e.detail1 = last_mouse_pos->x;
447 e.detail2 = last_mouse_pos->y;
448 spi_init_any_nil (&e.any_data);
449 CORBA_exception_init (&ev);
452 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
457 spi_dec_set_unlatch_pending (controller, mask_return);
469 spi_dec_mouse_check (SpiDEController *controller,
470 int *x, int *y, gboolean *moved)
472 Accessibility_Event e;
473 CORBA_Environment ev;
474 int win_x_return,win_y_return;
475 unsigned int mask_return;
476 Window root_return, child_return;
477 Display *display = spi_get_display ();
480 XQueryPointer(display, DefaultRootWindow (display),
481 &root_return, &child_return,
483 &win_x_return, &win_y_return, &mask_return);
485 * Since many clients grab the pointer, and X goes an automatic
486 * pointer grab on mouse-down, we often must detect mouse button events
487 * by polling rather than via a button grab.
488 * The while loop (rather than if) is used since it's possible that
489 * multiple buttons have changed state since we last checked.
491 if (mask_return != mouse_mask_state)
493 while (spi_dec_button_update_and_emit (controller, mask_return));
496 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
498 e.type = "mouse:abs";
499 e.source = BONOBO_OBJREF (controller->registry->desktop);
502 spi_init_any_nil (&e.any_data);
503 CORBA_exception_init (&ev);
504 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
507 e.type = "mouse:rel";
508 e.source = BONOBO_OBJREF (controller->registry->desktop);
509 e.detail1 = *x - last_mouse_pos->x;
510 e.detail2 = *y - last_mouse_pos->y;
511 spi_init_any_nil (&e.any_data);
512 CORBA_exception_init (&ev);
513 last_mouse_pos->x = *x;
514 last_mouse_pos->y = *y;
515 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
529 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
532 Accessibility_Event e;
533 CORBA_Environment ev;
536 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
537 prev_mask, current_mask);
540 /* set bits for the virtual modifiers like NUMLOCK */
541 if (prev_mask & _numlock_physical_mask)
542 prev_mask |= SPI_KEYMASK_NUMLOCK;
543 if (current_mask & _numlock_physical_mask)
544 current_mask |= SPI_KEYMASK_NUMLOCK;
546 e.type = "keyboard:modifiers";
547 e.source = BONOBO_OBJREF (controller->registry->desktop);
548 e.detail1 = prev_mask & key_modifier_mask;
549 e.detail2 = current_mask & key_modifier_mask;
550 spi_init_any_nil (&e.any_data);
551 CORBA_exception_init (&ev);
552 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
558 spi_dec_poll_mouse_moved (gpointer data)
560 SpiRegistry *registry = SPI_REGISTRY (data);
561 SpiDEController *controller = registry->de_controller;
566 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
568 if ((mask_return & key_modifier_mask) !=
569 (mouse_mask_state & key_modifier_mask))
571 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
572 mouse_mask_state = mask_return;
579 spi_dec_poll_mouse_idle (gpointer data)
581 if (! spi_dec_poll_mouse_moved (data))
585 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
591 spi_dec_poll_mouse_moving (gpointer data)
593 if (spi_dec_poll_mouse_moved (data))
597 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
602 #ifdef WE_NEED_UGRAB_MOUSE
604 spi_dec_ungrab_mouse (gpointer data)
606 Display *display = spi_get_display ();
609 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
610 XDefaultRootWindow (spi_get_display ()));
617 spi_dec_init_mouse_listener (SpiRegistry *registry)
620 Display *display = spi_get_display ();
622 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
627 if (XGrabButton (display, AnyButton, AnyModifier,
628 gdk_x11_get_default_root_xwindow (),
629 True, ButtonPressMask | ButtonReleaseMask,
630 GrabModeSync, GrabModeAsync, None, None) != Success) {
632 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
636 XSync (display, False);
638 fprintf (stderr, "mouse buttons grabbed\n");
645 * Eventually we can use this to make the marshalling of mask types
646 * more sane, but for now we just use this to detect
647 * the use of 'virtual' masks such as numlock and convert them to
648 * system-specific mask values (i.e. ModMask).
651 static Accessibility_ControllerEventMask
652 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
654 Accessibility_ControllerEventMask tmp_mask;
655 gboolean has_numlock;
657 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
661 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
662 tmp_mask |= _numlock_physical_mask;
668 static DEControllerKeyListener *
669 spi_dec_key_listener_new (CORBA_Object l,
670 const Accessibility_KeySet *keys,
671 const Accessibility_ControllerEventMask mask,
672 const Accessibility_EventTypeSeq *typeseq,
673 const Accessibility_EventListenerMode *mode,
674 CORBA_Environment *ev)
676 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
677 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
678 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
679 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
680 key_listener->mask = spi_dec_translate_mask (mask);
681 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
683 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
685 key_listener->mode = NULL;
688 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
689 (unsigned int) key_listener->mask,
690 (int) (mode ? mode->global : 0),
691 (void *) key_listener->keys,
692 (int) (key_listener->keys ? key_listener->keys->_length : 0));
698 static DEControllerListener *
699 spi_dec_listener_new (CORBA_Object l,
700 const Accessibility_EventTypeSeq *typeseq,
701 CORBA_Environment *ev)
703 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
704 listener->object = bonobo_object_dup_ref (l, ev);
705 listener->type = SPI_DEVICE_TYPE_MOUSE;
706 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
710 static DEControllerListener *
711 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
713 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
715 CORBA_Object_duplicate (listener->object, ev);
716 clone->type = listener->type;
717 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
721 static DEControllerKeyListener *
722 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
724 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
725 clone->listener.object =
726 CORBA_Object_duplicate (key_listener->listener.object, ev);
727 clone->listener.type = SPI_DEVICE_TYPE_KBD;
728 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
729 clone->mask = key_listener->mask;
730 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
731 if (key_listener->mode)
732 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
739 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
741 CORBA_free (key_listener->listener.typeseq);
742 CORBA_free (key_listener->keys);
743 g_free (key_listener);
747 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
749 CORBA_Object_release (clone->listener.object, ev);
750 spi_key_listener_data_free (clone, ev);
754 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
756 CORBA_Object_release (clone->object, ev);
757 CORBA_free (clone->typeseq);
762 spi_dec_listener_free (DEControllerListener *listener,
763 CORBA_Environment *ev)
765 bonobo_object_release_unref (listener->object, ev);
766 if (listener->type == SPI_DEVICE_TYPE_KBD)
767 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
771 _register_keygrab (SpiDEController *controller,
772 DEControllerGrabMask *grab_mask)
776 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
777 spi_grab_mask_compare_values);
780 DEControllerGrabMask *cur_mask = l->data;
782 cur_mask->ref_count++;
783 if (cur_mask->pending_remove)
785 cur_mask->pending_remove = FALSE;
790 controller->keygrabs_list =
791 g_list_prepend (controller->keygrabs_list,
792 spi_grab_mask_clone (grab_mask));
797 _deregister_keygrab (SpiDEController *controller,
798 DEControllerGrabMask *grab_mask)
802 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
803 spi_grab_mask_compare_values);
807 DEControllerGrabMask *cur_mask = l->data;
809 cur_mask->ref_count--;
810 if (cur_mask->ref_count <= 0)
812 cur_mask->pending_remove = TRUE;
817 DBG (1, g_warning ("De-registering non-existant grab"));
822 handle_keygrab (SpiDEController *controller,
823 DEControllerKeyListener *key_listener,
824 void (*process_cb) (SpiDEController *controller,
825 DEControllerGrabMask *grab_mask))
827 DEControllerGrabMask grab_mask = { 0 };
829 grab_mask.mod_mask = key_listener->mask;
830 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
832 grab_mask.key_val = AnyKey;
834 fprintf (stderr, "AnyKey grab!");
836 process_cb (controller, &grab_mask);
842 for (i = 0; i < key_listener->keys->_length; ++i)
844 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
845 long int key_val = keydef.keysym;
846 /* X Grabs require keycodes, not keysyms */
847 if (keydef.keystring && keydef.keystring[0])
849 key_val = XStringToKeysym(keydef.keystring);
853 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
857 key_val = keydef.keycode;
859 grab_mask.key_val = key_val;
860 process_cb (controller, &grab_mask);
866 spi_controller_register_global_keygrabs (SpiDEController *controller,
867 DEControllerKeyListener *key_listener)
869 handle_keygrab (controller, key_listener, _register_keygrab);
870 if (controller->xevie_display == NULL)
871 return spi_controller_update_key_grabs (controller, NULL);
877 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
878 DEControllerKeyListener *key_listener)
880 handle_keygrab (controller, key_listener, _deregister_keygrab);
881 if (controller->xevie_display == NULL)
882 spi_controller_update_key_grabs (controller, NULL);
886 spi_controller_register_device_listener (SpiDEController *controller,
887 DEControllerListener *listener,
888 CORBA_Environment *ev)
890 DEControllerKeyListener *key_listener;
892 switch (listener->type) {
893 case SPI_DEVICE_TYPE_KBD:
894 key_listener = (DEControllerKeyListener *) listener;
896 controller->key_listeners = g_list_prepend (controller->key_listeners,
898 if (key_listener->mode->global)
900 return spi_controller_register_global_keygrabs (controller, key_listener);
905 case SPI_DEVICE_TYPE_MOUSE:
906 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
909 DBG (1, g_warning ("listener registration for unknown device type.\n"));
916 spi_controller_notify_mouselisteners (SpiDEController *controller,
917 const Accessibility_DeviceEvent *event,
918 CORBA_Environment *ev)
921 GSList *notify = NULL, *l2;
922 GList **listeners = &controller->mouse_listeners;
923 gboolean is_consumed;
924 #ifdef SPI_KEYEVENT_DEBUG
925 gboolean found = FALSE;
932 for (l = *listeners; l; l = l->next)
934 DEControllerListener *listener = l->data;
936 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
938 Accessibility_DeviceEventListener ls = listener->object;
940 if (ls != CORBA_OBJECT_NIL)
942 /* we clone (don't dup) the listener, to avoid refcount inc. */
943 notify = g_slist_prepend (notify,
944 spi_listener_clone (listener, ev));
945 #ifdef SPI_KEYEVENT_DEBUG
952 #ifdef SPI_KEYEVENT_DEBUG
955 g_print ("no match for event\n");
960 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
962 DEControllerListener *listener = l2->data;
963 Accessibility_DeviceEventListener ls = listener->object;
965 CORBA_exception_init (ev);
966 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
970 DBG (2, g_warning ("error notifying listener, removing it\n"));
971 spi_deregister_controller_device_listener (controller, listener,
973 CORBA_exception_free (ev);
976 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
979 for (; l2; l2 = l2->next)
981 DEControllerListener *listener = l2->data;
982 spi_listener_clone_free (listener, ev);
983 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
986 g_slist_free (notify);
989 if (is_consumed) g_message ("consumed\n");
995 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
998 Accessibility_Event e;
999 Accessibility_DeviceEvent mouse_e;
1000 CORBA_Environment ev;
1001 gchar event_name[24];
1002 gboolean is_consumed = FALSE;
1003 gboolean xkb_mod_unlatch_occurred;
1004 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1006 int button = xbutton_event->button;
1008 unsigned int mouse_button_state = xbutton_event->state;
1013 mouse_button_state |= Button1Mask;
1016 mouse_button_state |= Button2Mask;
1019 mouse_button_state |= Button3Mask;
1022 mouse_button_state |= Button4Mask;
1025 mouse_button_state |= Button5Mask;
1029 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1030 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1033 fprintf (stderr, "mouse button %d %s (%x)\n",
1034 xbutton_event->button,
1035 (xevent->type == ButtonPress) ? "Press" : "Release",
1036 mouse_button_state);
1038 snprintf (event_name, 22, "mouse:button:%d%c", button,
1039 (xevent->type == ButtonPress) ? 'p' : 'r');
1041 /* TODO: FIXME distinguish between physical and logical buttons */
1042 mouse_e.type = (xevent->type == ButtonPress) ?
1043 Accessibility_BUTTON_PRESSED_EVENT :
1044 Accessibility_BUTTON_RELEASED_EVENT;
1045 mouse_e.id = button;
1046 mouse_e.hw_code = button;
1047 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
1048 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
1049 mouse_e.event_string = "";
1050 mouse_e.is_text = CORBA_FALSE;
1051 if ((mouse_button_state & mouse_button_mask) !=
1052 (mouse_mask_state & mouse_button_mask))
1054 if ((mouse_mask_state & key_modifier_mask) !=
1055 (mouse_button_state & key_modifier_mask))
1056 spi_dec_emit_modifier_event (controller,
1057 mouse_mask_state, mouse_button_state);
1058 mouse_mask_state = mouse_button_state;
1060 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
1061 e.type = CORBA_string_dup (event_name);
1062 e.source = BONOBO_OBJREF (controller->registry->desktop);
1063 e.detail1 = last_mouse_pos->x;
1064 e.detail2 = last_mouse_pos->y;
1065 spi_init_any_nil (&e.any_data);
1066 CORBA_exception_init (&ev);
1068 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
1073 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1074 xevent->type == ButtonRelease);
1076 /* if client wants to consume this event, and XKB latch state was
1077 * unset by this button event, we reset it
1079 if (is_consumed && xkb_mod_unlatch_occurred)
1080 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1082 XAllowEvents (spi_get_display (),
1083 (is_consumed) ? SyncPointer : ReplayPointer,
1087 static GdkFilterReturn
1088 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1090 XEvent *xevent = gdk_xevent;
1091 SpiDEController *controller;
1092 DEControllerPrivateData *priv;
1093 Display *display = spi_get_display ();
1094 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1095 priv = (DEControllerPrivateData *)
1096 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1098 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1100 if (controller->xevie_display == NULL)
1102 gboolean is_consumed;
1105 spi_device_event_controller_forward_key_event (controller, xevent);
1112 n_events = XPending (display);
1114 #ifdef SPI_KEYEVENT_DEBUG
1115 g_print ("Number of events pending: %d\n", n_events);
1117 for (i = 0; i < n_events; i++)
1119 XNextEvent (display, &next_event);
1120 if (next_event.type != KeyPress &&
1121 next_event.type != KeyRelease)
1122 g_warning ("Unexpected event type %d in queue", next_event.type);
1125 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1127 XUngrabKeyboard (display, CurrentTime);
1131 if (xevent->type == KeyPress)
1132 wait_for_release_event (xevent, controller);
1133 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1137 return GDK_FILTER_CONTINUE;
1139 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1141 spi_device_event_controller_forward_mouse_event (controller, xevent);
1143 if (xevent->type == priv->xkb_base_event_code)
1145 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1146 /* ugly but probably necessary...*/
1147 XSynchronize (display, TRUE);
1149 if (xkb_ev->xkb_type == XkbStateNotify)
1151 XkbStateNotifyEvent *xkb_snev =
1152 (XkbStateNotifyEvent *) xkb_ev;
1153 /* check the mouse, to catch mouse events grabbed by
1154 * another client; in case we should revert this XKB delatch
1156 if (!priv->pending_xkb_mod_relatch_mask)
1160 spi_dec_mouse_check (controller, &x, &y, &moved);
1162 /* we check again, since the previous call may have
1163 changed this flag */
1164 if (priv->pending_xkb_mod_relatch_mask)
1166 unsigned int feedback_mask;
1167 #ifdef SPI_XKB_DEBUG
1168 fprintf (stderr, "relatching %x\n",
1169 priv->pending_xkb_mod_relatch_mask);
1171 /* temporarily turn off the latch bell, if it's on */
1172 XkbGetControls (display,
1173 XkbAccessXFeedbackMask,
1175 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1176 if (feedback_mask & XkbAX_StickyKeysFBMask)
1178 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1180 priv->xkb_desc->ctrls->ax_options
1181 &= ~(XkbAX_StickyKeysFBMask);
1182 XkbChangeControls (display, priv->xkb_desc, &changes);
1184 /* TODO: account for lock as well as latch */
1185 XkbLatchModifiers (display,
1187 priv->pending_xkb_mod_relatch_mask,
1188 priv->pending_xkb_mod_relatch_mask);
1189 if (feedback_mask & XkbAX_StickyKeysFBMask)
1191 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1193 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1194 XkbChangeControls (display, priv->xkb_desc, &changes);
1196 #ifdef SPI_XKB_DEBUG
1197 fprintf (stderr, "relatched %x\n",
1198 priv->pending_xkb_mod_relatch_mask);
1200 priv->pending_xkb_mod_relatch_mask = 0;
1204 priv->xkb_latch_mask = xkb_snev->latched_mods;
1208 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1209 XSynchronize (display, FALSE);
1212 return GDK_FILTER_CONTINUE;
1216 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1218 if (error->error_code == BadAccess)
1220 g_message ("Could not complete key grab: grab already in use.\n");
1221 spi_error_code = BadAccess;
1226 return (*x_default_error_handler) (display, error);
1231 spi_controller_register_with_devices (SpiDEController *controller)
1233 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1234 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1235 /* FIXME: should check for extension first! */
1236 XTestGrabControl (spi_get_display (), True);
1238 /* calls to device-specific implementations and routines go here */
1239 /* register with: keyboard hardware code handler */
1240 /* register with: (translated) keystroke handler */
1242 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1243 &priv->xkb_major_extension_opcode,
1244 &priv->xkb_base_event_code,
1245 &priv->xkb_base_error_code, NULL, NULL);
1249 guint64 reserved = 0;
1250 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1251 XkbSelectEvents (spi_get_display (),
1253 XkbStateNotifyMask, XkbStateNotifyMask);
1254 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1256 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1258 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1260 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1262 /* don't use this one if there's a grab client! */
1263 gdk_error_trap_push ();
1264 XGrabKey (spi_get_display (), i, 0,
1265 gdk_x11_get_default_root_xwindow (),
1267 GrabModeSync, GrabModeSync);
1268 XSync (spi_get_display (), TRUE);
1269 XUngrabKey (spi_get_display (), i, 0,
1270 gdk_x11_get_default_root_xwindow ());
1271 if (!gdk_error_trap_pop ())
1281 priv->reserved_keycode = reserved;
1282 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1286 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1287 priv->reserved_keysym = XK_numbersign;
1289 #ifdef SPI_RESERVED_DEBUG
1291 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1292 fprintf (stderr, "%x\n", sym);
1293 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1295 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1300 gdk_window_add_filter (NULL, global_filter_fn, controller);
1302 gdk_window_set_events (gdk_get_default_root_window (),
1303 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1305 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1309 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1310 const Accessibility_DeviceEvent *key_event)
1317 g_print ("null key set!");
1321 len = key_set->_length;
1323 if (len == 0) /* special case, means "all keys/any key" */
1325 g_print ("anykey\n");
1329 for (i = 0; i < len; ++i)
1331 #ifdef SPI_KEYEVENT_DEBUG
1332 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1334 (int)key_set->_buffer[i].keysym,
1335 (int) key_set->_buffer[i].keycode,
1336 (int) key_event->id,
1337 (int) key_event->hw_code,
1338 key_event->event_string);
1340 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1344 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1348 if (key_event->event_string && key_event->event_string[0] &&
1349 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1359 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1360 const Accessibility_DeviceEvent *event)
1368 g_print ("null type seq!");
1372 len = type_seq->_length;
1374 if (len == 0) /* special case, means "all events/any event" */
1379 for (i = 0; i < len; ++i)
1382 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1383 (int) type_seq->_buffer[i], (int) event->type);
1385 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1395 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1396 DEControllerKeyListener *listener,
1397 CORBA_boolean is_system_global)
1399 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1400 spi_key_set_contains_key (listener->keys, key_event) &&
1401 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1402 (is_system_global == listener->mode->global))
1413 spi_controller_notify_keylisteners (SpiDEController *controller,
1414 const Accessibility_DeviceEvent *key_event,
1415 CORBA_boolean is_system_global,
1416 CORBA_Environment *ev)
1419 GSList *notify = NULL, *l2;
1420 GList **key_listeners = &controller->key_listeners;
1421 gboolean is_consumed;
1428 for (l = *key_listeners; l; l = l->next)
1430 DEControllerKeyListener *key_listener = l->data;
1432 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1434 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1436 if (ls != CORBA_OBJECT_NIL)
1438 /* we clone (don't dup) the listener, to avoid refcount inc. */
1439 notify = g_slist_prepend (notify,
1440 spi_key_listener_clone (key_listener, ev));
1445 #ifdef SPI_KEYEVENT_DEBUG
1448 g_print ("no match for event\n");
1452 is_consumed = FALSE;
1453 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1455 DEControllerKeyListener *key_listener = l2->data;
1456 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1458 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev) &&
1459 key_listener->mode->preemptive;
1463 is_consumed = FALSE;
1464 spi_deregister_controller_key_listener (controller, key_listener,
1466 CORBA_exception_free (ev);
1469 spi_key_listener_clone_free (key_listener, ev);
1472 for (; l2; l2 = l2->next)
1474 DEControllerKeyListener *key_listener = l2->data;
1475 spi_key_listener_clone_free (key_listener, ev);
1476 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1479 g_slist_free (notify);
1482 if (is_consumed) g_message ("consumed\n");
1488 spi_clear_error_state (void)
1490 gboolean retval = spi_error_code != 0;
1495 static Accessibility_DeviceEvent
1496 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1498 Accessibility_DeviceEvent key_event;
1500 const int cbuf_bytes = 20;
1504 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1505 key_event.id = (CORBA_long)(keysym);
1506 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1507 if (((XEvent *) x_key_event)->type == KeyPress)
1509 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1513 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1515 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1516 key_event.is_text = CORBA_FALSE;
1520 key_event.event_string = CORBA_string_dup ("space");
1523 key_event.event_string = CORBA_string_dup ("Tab");
1526 key_event.event_string = CORBA_string_dup ("Backspace");
1529 key_event.event_string = CORBA_string_dup ("Return");
1532 key_event.event_string = CORBA_string_dup ("Home");
1535 key_event.event_string = CORBA_string_dup ("Page_Down");
1538 key_event.event_string = CORBA_string_dup ("Page_Up");
1541 key_event.event_string = CORBA_string_dup ("F1");
1544 key_event.event_string = CORBA_string_dup ("F2");
1547 key_event.event_string = CORBA_string_dup ("F3");
1550 key_event.event_string = CORBA_string_dup ("F4");
1553 key_event.event_string = CORBA_string_dup ("F5");
1556 key_event.event_string = CORBA_string_dup ("F6");
1559 key_event.event_string = CORBA_string_dup ("F7");
1562 key_event.event_string = CORBA_string_dup ("F8");
1565 key_event.event_string = CORBA_string_dup ("F9");
1568 key_event.event_string = CORBA_string_dup ("F10");
1571 key_event.event_string = CORBA_string_dup ("F11");
1574 key_event.event_string = CORBA_string_dup ("F12");
1577 key_event.event_string = CORBA_string_dup ("End");
1580 key_event.event_string = CORBA_string_dup ("Escape");
1583 key_event.event_string = CORBA_string_dup ("Up");
1586 key_event.event_string = CORBA_string_dup ("Down");
1589 key_event.event_string = CORBA_string_dup ("Left");
1592 key_event.event_string = CORBA_string_dup ("Right");
1598 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1599 key_event.event_string = CORBA_string_dup (cbuf);
1600 c = keysym2ucs (keysym);
1601 if (c > 0 && !g_unichar_iscntrl (c))
1603 key_event.is_text = CORBA_TRUE;
1604 /* incorrect for some composed chars? */
1609 key_event.event_string = CORBA_string_dup ("");
1613 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1614 #ifdef SPI_KEYEVENT_DEBUG
1616 char *pressed_str = "pressed";
1617 char *released_str = "released";
1620 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1621 state_ptr = pressed_str;
1623 state_ptr = released_str;
1626 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1627 (unsigned long) keysym,
1629 keysym ? (int) keysym : '*',
1630 (int) x_key_event->state,
1631 key_event.event_string,
1632 key_event.event_string[0],
1633 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1637 fprintf (stderr, "%s%c\n",
1638 (x_key_event->state & Mod1Mask)?"Alt-":"",
1639 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1640 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1641 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1642 #endif /* SPI_DEBUG */
1647 spi_controller_update_key_grabs (SpiDEController *controller,
1648 Accessibility_DeviceEvent *recv)
1651 gboolean update_failed = FALSE;
1654 g_return_val_if_fail (controller != NULL, FALSE);
1657 * masks known to work with default RH 7.1+:
1658 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1659 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1660 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1661 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1663 * ControlMask grabs are broken, must be in use already
1666 keycode = keycode_for_keysym (controller, recv->id, NULL);
1667 for (l = controller->keygrabs_list; l; l = next)
1670 gboolean re_issue_grab;
1671 DEControllerGrabMask *grab_mask = l->data;
1675 re_issue_grab = recv &&
1676 (recv->modifiers & grab_mask->mod_mask) &&
1677 (grab_mask->key_val == keycode);
1680 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1681 (long int) grab_mask->key_val,
1682 (long int) grab_mask->mod_mask,
1683 grab_mask->pending_add ? '+' : '.',
1684 grab_mask->pending_remove ? '-' : '.',
1685 re_issue_grab ? "re-issue": "");
1690 if (grab_mask->pending_add && grab_mask->pending_remove)
1694 else if (grab_mask->pending_remove)
1697 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1699 XUngrabKey (spi_get_display (),
1701 grab_mask->mod_mask,
1702 gdk_x11_get_default_root_xwindow ());
1706 else if (grab_mask->pending_add || re_issue_grab)
1710 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1712 XGrabKey (spi_get_display (),
1714 grab_mask->mod_mask,
1715 gdk_x11_get_default_root_xwindow (),
1719 XSync (spi_get_display (), False);
1720 update_failed = spi_clear_error_state ();
1721 if (update_failed) {
1722 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1727 grab_mask->pending_add = FALSE;
1728 grab_mask->pending_remove = FALSE;
1732 g_assert (grab_mask->ref_count <= 0);
1734 controller->keygrabs_list = g_list_delete_link (
1735 controller->keygrabs_list, l);
1737 spi_grab_mask_free (grab_mask);
1742 return ! update_failed;
1746 * Implemented GObject::finalize
1749 spi_device_event_controller_object_finalize (GObject *object)
1751 SpiDEController *controller;
1752 DEControllerPrivateData *private;
1753 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1756 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1758 /* disconnect any special listeners, get rid of outstanding keygrabs */
1759 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1762 if (controller->xevie_display != NULL)
1764 XevieEnd(controller->xevie_display);
1765 #ifdef SPI_KEYEVENT_DEBUG
1766 printf("XevieEnd(dpy) finished \n");
1771 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1772 if (private->xkb_desc)
1773 XkbFreeKeyboard (private->xkb_desc, 0, True);
1775 spi_device_event_controller_parent_class->finalize (object);
1779 * CORBA Accessibility::DEController::registerKeystrokeListener
1780 * method implementation
1782 static CORBA_boolean
1783 impl_register_keystroke_listener (PortableServer_Servant servant,
1784 const Accessibility_DeviceEventListener l,
1785 const Accessibility_KeySet *keys,
1786 const Accessibility_ControllerEventMask mask,
1787 const Accessibility_EventTypeSeq *type,
1788 const Accessibility_EventListenerMode *mode,
1789 CORBA_Environment *ev)
1791 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1792 bonobo_object_from_servant (servant));
1793 DEControllerKeyListener *dec_listener;
1795 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1796 (void *) l, (unsigned long) mask);
1798 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1799 return spi_controller_register_device_listener (
1800 controller, (DEControllerListener *) dec_listener, ev);
1805 * CORBA Accessibility::DEController::registerDeviceEventListener
1806 * method implementation
1808 static CORBA_boolean
1809 impl_register_device_listener (PortableServer_Servant servant,
1810 const Accessibility_DeviceEventListener l,
1811 const Accessibility_EventTypeSeq *event_types,
1812 CORBA_Environment *ev)
1814 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1815 bonobo_object_from_servant (servant));
1816 DEControllerListener *dec_listener;
1818 dec_listener = spi_dec_listener_new (l, event_types, ev);
1819 return spi_controller_register_device_listener (
1820 controller, (DEControllerListener *) dec_listener, ev);
1824 CORBA_Environment *ev;
1825 DEControllerListener *listener;
1826 } RemoveListenerClosure;
1828 static SpiReEntrantContinue
1829 remove_listener_cb (GList * const *list,
1832 DEControllerListener *listener = (*list)->data;
1833 RemoveListenerClosure *ctx = user_data;
1835 if (CORBA_Object_is_equivalent (ctx->listener->object,
1836 listener->object, ctx->ev))
1838 spi_re_entrant_list_delete_link (list);
1839 spi_dec_listener_free (listener, ctx->ev);
1842 return SPI_RE_ENTRANT_CONTINUE;
1845 static SpiReEntrantContinue
1846 copy_key_listener_cb (GList * const *list,
1849 DEControllerKeyListener *key_listener = (*list)->data;
1850 RemoveListenerClosure *ctx = user_data;
1852 if (CORBA_Object_is_equivalent (ctx->listener->object,
1853 key_listener->listener.object, ctx->ev))
1855 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1856 DEControllerKeyListener *ctx_key_listener =
1857 (DEControllerKeyListener *) ctx->listener;
1858 CORBA_free (ctx_key_listener->keys);
1859 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1862 return SPI_RE_ENTRANT_CONTINUE;
1866 spi_deregister_controller_device_listener (SpiDEController *controller,
1867 DEControllerListener *listener,
1868 CORBA_Environment *ev)
1870 RemoveListenerClosure ctx;
1873 ctx.listener = listener;
1875 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1876 remove_listener_cb, &ctx);
1880 spi_deregister_controller_key_listener (SpiDEController *controller,
1881 DEControllerKeyListener *key_listener,
1882 CORBA_Environment *ev)
1884 RemoveListenerClosure ctx;
1887 ctx.listener = (DEControllerListener *) key_listener;
1889 /* special case, copy keyset from existing controller list entry */
1890 if (key_listener->keys->_length == 0)
1892 spi_re_entrant_list_foreach (&controller->key_listeners,
1893 copy_key_listener_cb, &ctx);
1896 spi_controller_deregister_global_keygrabs (controller, key_listener);
1898 spi_re_entrant_list_foreach (&controller->key_listeners,
1899 remove_listener_cb, &ctx);
1904 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1905 * method implementation
1908 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1909 const Accessibility_DeviceEventListener l,
1910 const Accessibility_KeySet *keys,
1911 const Accessibility_ControllerEventMask mask,
1912 const Accessibility_EventTypeSeq *type,
1913 CORBA_Environment *ev)
1915 DEControllerKeyListener *key_listener;
1916 SpiDEController *controller;
1918 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1920 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1922 #ifdef SPI_DEREGISTER_DEBUG
1923 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1924 (void *) l, (unsigned long) mask->value);
1927 spi_deregister_controller_key_listener (controller, key_listener, ev);
1929 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1933 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1934 * method implementation
1937 impl_deregister_device_listener (PortableServer_Servant servant,
1938 const Accessibility_DeviceEventListener l,
1939 const Accessibility_EventTypeSeq *event_types,
1940 CORBA_Environment *ev)
1942 SpiDEController *controller;
1943 DEControllerListener *listener =
1944 spi_dec_listener_new (l, event_types, ev);
1946 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1948 spi_deregister_controller_device_listener (controller, listener, ev);
1950 spi_dec_listener_free (listener, ev);
1953 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1955 unsigned int retval = 0;
1956 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1957 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1959 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1960 retval = XkbGetSlowKeysDelay (spi_get_display (),
1961 XkbUseCoreKbd, &bounce_delay);
1963 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1965 Status s = XkbGetControls (spi_get_display (),
1966 XkbAllControlsMask, priv->xkb_desc);
1969 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1970 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1975 #ifdef SPI_XKB_DEBUG
1976 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1981 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1983 unsigned int retval = 0;
1984 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1985 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1987 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1988 retval = XkbGetBounceKeysDelay (spi_get_display (),
1989 XkbUseCoreKbd, &bounce_delay);
1991 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1993 Status s = XkbGetControls (spi_get_display (),
1994 XkbAllControlsMask, priv->xkb_desc);
1997 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1998 retval = priv->xkb_desc->ctrls->debounce_delay;
2003 #ifdef SPI_XKB_DEBUG
2004 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2010 dec_synth_keycode_press (SpiDEController *controller,
2011 unsigned int keycode)
2013 unsigned int time = CurrentTime;
2014 unsigned int bounce_delay;
2015 unsigned int elapsed_msec;
2017 DEControllerPrivateData *priv =
2018 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2019 spi_dec_private_quark);
2020 if (keycode == priv->last_release_keycode)
2022 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2025 gettimeofday (&tv, NULL);
2027 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2028 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2029 #ifdef SPI_XKB_DEBUG
2030 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2031 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2033 #ifdef THIS_IS_BROKEN
2034 if (elapsed_msec < bounce_delay)
2035 time = bounce_delay - elapsed_msec + 1;
2037 time = bounce_delay + 10;
2038 /* fudge for broken XTest */
2040 #ifdef SPI_XKB_DEBUG
2041 fprintf (stderr, "waiting %d ms\n", time);
2045 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2046 priv->last_press_keycode = keycode;
2047 XFlush (spi_get_display ());
2048 XSync (spi_get_display (), False);
2049 gettimeofday (&priv->last_press_time, NULL);
2054 dec_synth_keycode_release (SpiDEController *controller,
2055 unsigned int keycode)
2057 unsigned int time = CurrentTime;
2058 unsigned int slow_delay;
2059 unsigned int elapsed_msec;
2061 DEControllerPrivateData *priv =
2062 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2063 spi_dec_private_quark);
2064 if (keycode == priv->last_press_keycode)
2066 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2069 gettimeofday (&tv, NULL);
2071 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2072 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2073 #ifdef SPI_XKB_DEBUG
2074 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2075 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2077 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2078 if (elapsed_msec < slow_delay)
2079 time = slow_delay - elapsed_msec + 1;
2081 time = slow_delay + 10;
2082 /* our XTest seems broken, we have to add slop as above */
2084 #ifdef SPI_XKB_DEBUG
2085 fprintf (stderr, "waiting %d ms\n", time);
2089 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2090 priv->last_release_keycode = keycode;
2091 XSync (spi_get_display (), False);
2092 gettimeofday (&priv->last_release_time, NULL);
2097 dec_get_modifier_state (SpiDEController *controller)
2099 return mouse_mask_state;
2103 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2105 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2106 modifiers, modifiers);
2110 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2112 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2117 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2119 return ucs2keysym ((long) unichar);
2123 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2125 KeyCode key_synth_code;
2126 unsigned int modifiers, synth_mods, lock_mods;
2128 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2130 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2132 /* TODO: set the modifiers accordingly! */
2133 modifiers = dec_get_modifier_state (controller);
2134 /* side-effect; we may unset mousebutton modifiers here! */
2137 if (synth_mods != modifiers) {
2138 lock_mods = synth_mods & ~modifiers;
2139 dec_lock_modifiers (controller, lock_mods);
2141 dec_synth_keycode_press (controller, key_synth_code);
2142 dec_synth_keycode_release (controller, key_synth_code);
2144 if (synth_mods != modifiers)
2145 dec_unlock_modifiers (controller, lock_mods);
2151 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
2153 /* probably we need to create and inject an XIM handler eventually. */
2154 /* for now, try to match the string to existing
2155 * keycode+modifier states.
2159 gunichar unichar = 0;
2161 gboolean retval = TRUE;
2164 maxlen = strlen (keystring);
2165 keysyms = g_new0 (KeySym, maxlen);
2166 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2171 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2173 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2178 mbytes = g_unichar_to_utf8 (unichar, bytes);
2179 bytes[mbytes] = '\0';
2181 fprintf (stderr, "[unichar %s]", bytes);
2183 keysym = dec_keysym_for_unichar (controller, unichar);
2184 if (keysym == NoSymbol) {
2186 fprintf (stderr, "no keysym for %s", bytes);
2191 keysyms[i++] = keysym;
2192 keystring = g_utf8_next_char (keystring);
2195 XSynchronize (spi_get_display (), TRUE);
2196 for (i = 0; keysyms[i]; ++i) {
2197 if (!dec_synth_keysym (controller, keysyms[i])) {
2199 fprintf (stderr, "could not synthesize %c\n",
2206 XSynchronize (spi_get_display (), FALSE);
2215 * CORBA Accessibility::DEController::registerKeystrokeListener
2216 * method implementation
2219 impl_generate_keyboard_event (PortableServer_Servant servant,
2220 const CORBA_long keycode,
2221 const CORBA_char *keystring,
2222 const Accessibility_KeySynthType synth_type,
2223 CORBA_Environment *ev)
2225 SpiDEController *controller =
2226 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2231 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2232 (long) keycode, (int) synth_type);
2234 /* TODO: hide/wrap/remove X dependency */
2237 * TODO: when initializing, query for XTest extension before using,
2238 * and fall back to XSendEvent() if XTest is not available.
2241 gdk_error_trap_push ();
2245 case Accessibility_KEY_PRESS:
2246 dec_synth_keycode_press (controller, keycode);
2248 case Accessibility_KEY_PRESSRELEASE:
2249 dec_synth_keycode_press (controller, keycode);
2250 case Accessibility_KEY_RELEASE:
2251 dec_synth_keycode_release (controller, keycode);
2253 case Accessibility_KEY_SYM:
2254 #ifdef SPI_XKB_DEBUG
2255 fprintf (stderr, "KeySym synthesis\n");
2258 * note: we are using long for 'keycode'
2259 * in our arg list; it can contain either
2260 * a keycode or a keysym.
2262 dec_synth_keysym (controller, (KeySym) keycode);
2264 case Accessibility_KEY_STRING:
2265 if (!dec_synth_keystring (controller, keystring))
2266 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2270 if ((err = gdk_error_trap_pop ()))
2272 DBG (-1, g_warning ("Error [%d] emitting keystroke", err));
2274 if (synth_type == Accessibility_KEY_SYM) {
2278 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2280 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2282 spi_dec_clear_unlatch_pending (controller);
2286 /* Accessibility::DEController::generateMouseEvent */
2288 impl_generate_mouse_event (PortableServer_Servant servant,
2291 const CORBA_char *eventName,
2292 CORBA_Environment *ev)
2295 gboolean error = FALSE;
2296 Display *display = spi_get_display ();
2298 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2299 eventName, (long int) x, (long int) y);
2301 switch (eventName[0])
2304 switch (eventName[1])
2306 /* TODO: check number of buttons before parsing */
2327 if (x != -1 && y != -1)
2329 XTestFakeMotionEvent (display, DefaultScreen (display),
2332 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2333 if (eventName[2] == 'c')
2334 XTestFakeButtonEvent (display, button, FALSE, 1);
2335 else if (eventName[2] == 'd')
2337 XTestFakeButtonEvent (display, button, FALSE, 1);
2338 XTestFakeButtonEvent (display, button, TRUE, 2);
2339 XTestFakeButtonEvent (display, button, FALSE, 3);
2343 case 'r': /* relative motion */
2344 XTestFakeRelativeMotionEvent (display, x, y, 0);
2346 case 'a': /* absolute motion */
2347 XTestFakeMotionEvent (display, DefaultScreen (display),
2353 /* Accessibility::DEController::notifyListenersSync */
2354 static CORBA_boolean
2355 impl_notify_listeners_sync (PortableServer_Servant servant,
2356 const Accessibility_DeviceEvent *event,
2357 CORBA_Environment *ev)
2359 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2360 bonobo_object_from_servant (servant));
2362 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2363 controller, (int) event->id);
2365 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
2366 CORBA_TRUE : CORBA_FALSE;
2369 /* Accessibility::DEController::notifyListenersAsync */
2371 impl_notify_listeners_async (PortableServer_Servant servant,
2372 const Accessibility_DeviceEvent *event,
2373 CORBA_Environment *ev)
2375 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2376 bonobo_object_from_servant (servant));
2378 fprintf (stderr, "notifying listeners asynchronously\n");
2380 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
2384 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2386 GObjectClass * object_class = (GObjectClass *) klass;
2387 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2389 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2391 object_class->finalize = spi_device_event_controller_object_finalize;
2393 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2394 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2395 epv->registerDeviceEventListener = impl_register_device_listener;
2396 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2397 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2398 epv->generateMouseEvent = impl_generate_mouse_event;
2399 epv->notifyListenersSync = impl_notify_listeners_sync;
2400 epv->notifyListenersAsync = impl_notify_listeners_async;
2402 if (!spi_dec_private_quark)
2403 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2407 Bool isEvent(dpy,event,arg)
2416 handle_io (GIOChannel *source,
2417 GIOCondition condition,
2420 SpiDEController *controller = (SpiDEController *) data;
2421 gboolean is_consumed = FALSE;
2424 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2426 if (ev.type == KeyPress || ev.type == KeyRelease)
2427 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2430 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2435 #endif /* HAVE_XEVIE */
2438 spi_device_event_controller_init (SpiDEController *device_event_controller)
2443 #endif /* HAVE_XEVIE */
2445 DEControllerPrivateData *private;
2446 device_event_controller->key_listeners = NULL;
2447 device_event_controller->mouse_listeners = NULL;
2448 device_event_controller->keygrabs_list = NULL;
2449 device_event_controller->xevie_display = NULL;
2452 device_event_controller->xevie_display = XOpenDisplay(NULL);
2454 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2456 #ifdef SPI_KEYEVENT_DEBUG
2457 fprintf (stderr, "XevieStart() success \n");
2459 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2461 fd = ConnectionNumber(device_event_controller->xevie_display);
2462 ioc = g_io_channel_unix_new (fd);
2463 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2464 g_io_channel_unref (ioc);
2468 device_event_controller->xevie_display = NULL;
2469 #ifdef SPI_KEYEVENT_DEBUG
2470 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2473 #endif /* HAVE_XEVIE */
2475 private = g_new0 (DEControllerPrivateData, 1);
2476 gettimeofday (&private->last_press_time, NULL);
2477 gettimeofday (&private->last_release_time, NULL);
2478 g_object_set_qdata (G_OBJECT (device_event_controller),
2479 spi_dec_private_quark,
2481 spi_controller_register_with_devices (device_event_controller);
2485 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2486 const XEvent *event)
2488 CORBA_Environment ev;
2489 Accessibility_DeviceEvent key_event;
2491 g_assert (event->type == KeyPress || event->type == KeyRelease);
2493 CORBA_exception_init (&ev);
2495 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2497 if (controller->xevie_display == NULL)
2498 spi_controller_update_key_grabs (controller, &key_event);
2500 /* relay to listeners, and decide whether to consume it or not */
2501 return spi_controller_notify_keylisteners (controller, &key_event, CORBA_TRUE, &ev);
2505 spi_device_event_controller_new (SpiRegistry *registry)
2507 SpiDEController *retval = g_object_new (
2508 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2510 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2511 BONOBO_OBJECT (registry)));
2513 spi_dec_init_mouse_listener (registry);
2514 /* TODO: kill mouse listener on finalize */
2519 is_key_released (KeyCode code)
2524 XQueryKeymap (spi_get_display (), keys);
2525 down = BIT (keys, code);
2530 check_release (gpointer data)
2533 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2534 KeyCode code = event->hw_code;
2535 CORBA_Environment ev;
2537 released = is_key_released (code);
2541 check_release_handler = 0;
2542 event->type = Accessibility_KEY_RELEASED_EVENT;
2543 ev._major = CORBA_NO_EXCEPTION;
2544 spi_controller_notify_keylisteners (saved_controller, event, CORBA_TRUE, &ev);
2546 return (released == 0);
2549 static void wait_for_release_event (XEvent *event,
2550 SpiDEController *controller)
2552 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2553 saved_controller = controller;
2554 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2557 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2558 Accessibility_DeviceEventController,
2560 spi_device_event_controller)