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 long old_sym = desc->map->syms[offset];
225 desc->map->syms[offset] = keysym;
229 fprintf (stderr, "Error changing key map: empty server structure\n");
231 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
233 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
234 * would be far preferable.
235 * HOWEVER it does not seem to work using XFree 4.3.
237 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
240 XkbFreeKeyboard (desc, 0, TRUE);
249 spi_dec_reset_reserved (gpointer data)
251 DEControllerPrivateData *priv = data;
252 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
253 priv->reserved_reset_timeout = 0;
258 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
261 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
264 DEControllerPrivateData *priv = (DEControllerPrivateData *)
265 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
266 /* if there's no keycode available, fix it */
267 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
269 keycode = priv->reserved_keycode;
271 * queue a timer to restore the old keycode. Ugly, but required
272 * due to races / asynchronous X delivery.
273 * Long-term fix is to extend the X keymap here instead of replace entries.
275 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
281 *modmask = keysym_mod_mask (keysym, keycode);
285 static DEControllerGrabMask *
286 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
288 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
290 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
292 clone->ref_count = 1;
293 clone->pending_add = TRUE;
294 clone->pending_remove = FALSE;
300 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
306 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
308 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
309 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
317 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
322 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
324 DEControllerPrivateData *priv =
325 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
327 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
328 priv->xkb_latch_mask);
330 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
334 spi_dec_clear_unlatch_pending (SpiDEController *controller)
336 DEControllerPrivateData *priv =
337 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
338 priv->xkb_latch_mask = 0;
342 spi_dec_button_update_and_emit (SpiDEController *controller,
345 CORBA_Environment ev;
346 Accessibility_Event e;
347 Accessibility_DeviceEvent mouse_e;
348 gchar event_name[24];
349 gboolean is_consumed = FALSE;
351 if ((mask_return & mouse_button_mask) !=
352 (mouse_mask_state & mouse_button_mask))
354 int button_number = 0;
355 gboolean is_down = False;
357 if (!(mask_return & Button1Mask) &&
358 (mouse_mask_state & Button1Mask))
360 mouse_mask_state &= ~Button1Mask;
363 else if ((mask_return & Button1Mask) &&
364 !(mouse_mask_state & Button1Mask))
366 mouse_mask_state |= Button1Mask;
370 else if (!(mask_return & Button2Mask) &&
371 (mouse_mask_state & Button2Mask))
373 mouse_mask_state &= ~Button2Mask;
376 else if ((mask_return & Button2Mask) &&
377 !(mouse_mask_state & Button2Mask))
379 mouse_mask_state |= Button2Mask;
383 else if (!(mask_return & Button3Mask) &&
384 (mouse_mask_state & Button3Mask))
386 mouse_mask_state &= ~Button3Mask;
389 else if ((mask_return & Button3Mask) &&
390 !(mouse_mask_state & Button3Mask))
392 mouse_mask_state |= Button3Mask;
396 else if (!(mask_return & Button4Mask) &&
397 (mouse_mask_state & Button4Mask))
399 mouse_mask_state &= ~Button4Mask;
402 else if ((mask_return & Button4Mask) &&
403 !(mouse_mask_state & Button4Mask))
405 mouse_mask_state |= Button4Mask;
409 else if (!(mask_return & Button5Mask) &&
410 (mouse_mask_state & Button5Mask))
412 mouse_mask_state &= ~Button5Mask;
415 else if ((mask_return & Button5Mask) &&
416 !(mouse_mask_state & Button5Mask))
418 mouse_mask_state |= Button5Mask;
424 fprintf (stderr, "Button %d %s\n",
425 button_number, (is_down) ? "Pressed" : "Released");
427 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
428 (is_down) ? 'p' : 'r');
429 /* TODO: FIXME distinguish between physical and
432 mouse_e.type = (is_down) ?
433 Accessibility_BUTTON_PRESSED_EVENT :
434 Accessibility_BUTTON_RELEASED_EVENT;
435 mouse_e.id = button_number;
436 mouse_e.hw_code = button_number;
437 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
438 mouse_e.timestamp = 0;
439 mouse_e.event_string = "";
440 mouse_e.is_text = CORBA_FALSE;
442 spi_controller_notify_mouselisteners (controller,
446 e.source = BONOBO_OBJREF (controller->registry->desktop);
447 e.detail1 = last_mouse_pos->x;
448 e.detail2 = last_mouse_pos->y;
449 spi_init_any_nil (&e.any_data);
450 CORBA_exception_init (&ev);
453 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
458 spi_dec_set_unlatch_pending (controller, mask_return);
470 spi_dec_mouse_check (SpiDEController *controller,
471 int *x, int *y, gboolean *moved)
473 Accessibility_Event e;
474 CORBA_Environment ev;
475 int win_x_return,win_y_return;
476 unsigned int mask_return;
477 Window root_return, child_return;
478 Display *display = spi_get_display ();
481 XQueryPointer(display, DefaultRootWindow (display),
482 &root_return, &child_return,
484 &win_x_return, &win_y_return, &mask_return);
486 * Since many clients grab the pointer, and X goes an automatic
487 * pointer grab on mouse-down, we often must detect mouse button events
488 * by polling rather than via a button grab.
489 * The while loop (rather than if) is used since it's possible that
490 * multiple buttons have changed state since we last checked.
492 if (mask_return != mouse_mask_state)
494 while (spi_dec_button_update_and_emit (controller, mask_return));
497 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
499 e.type = "mouse:abs";
500 e.source = BONOBO_OBJREF (controller->registry->desktop);
503 spi_init_any_nil (&e.any_data);
504 CORBA_exception_init (&ev);
505 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
508 e.type = "mouse:rel";
509 e.source = BONOBO_OBJREF (controller->registry->desktop);
510 e.detail1 = *x - last_mouse_pos->x;
511 e.detail2 = *y - last_mouse_pos->y;
512 spi_init_any_nil (&e.any_data);
513 CORBA_exception_init (&ev);
514 last_mouse_pos->x = *x;
515 last_mouse_pos->y = *y;
516 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
530 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
533 Accessibility_Event e;
534 CORBA_Environment ev;
537 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
538 prev_mask, current_mask);
541 /* set bits for the virtual modifiers like NUMLOCK */
542 if (prev_mask & _numlock_physical_mask)
543 prev_mask |= SPI_KEYMASK_NUMLOCK;
544 if (current_mask & _numlock_physical_mask)
545 current_mask |= SPI_KEYMASK_NUMLOCK;
547 e.type = "keyboard:modifiers";
548 e.source = BONOBO_OBJREF (controller->registry->desktop);
549 e.detail1 = prev_mask & key_modifier_mask;
550 e.detail2 = current_mask & key_modifier_mask;
551 spi_init_any_nil (&e.any_data);
552 CORBA_exception_init (&ev);
553 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
559 spi_dec_poll_mouse_moved (gpointer data)
561 SpiRegistry *registry = SPI_REGISTRY (data);
562 SpiDEController *controller = registry->de_controller;
567 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
569 if ((mask_return & key_modifier_mask) !=
570 (mouse_mask_state & key_modifier_mask))
572 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
573 mouse_mask_state = mask_return;
580 spi_dec_poll_mouse_idle (gpointer data)
582 if (! spi_dec_poll_mouse_moved (data))
586 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
592 spi_dec_poll_mouse_moving (gpointer data)
594 if (spi_dec_poll_mouse_moved (data))
598 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
603 #ifdef WE_NEED_UGRAB_MOUSE
605 spi_dec_ungrab_mouse (gpointer data)
607 Display *display = spi_get_display ();
610 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
611 XDefaultRootWindow (spi_get_display ()));
618 spi_dec_init_mouse_listener (SpiRegistry *registry)
620 Display *display = spi_get_display ();
621 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
626 if (XGrabButton (display, AnyButton, AnyModifier,
627 gdk_x11_get_default_root_xwindow (),
628 True, ButtonPressMask | ButtonReleaseMask,
629 GrabModeSync, GrabModeAsync, None, None) != Success) {
631 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
635 XSync (display, False);
637 fprintf (stderr, "mouse buttons grabbed\n");
644 * Eventually we can use this to make the marshalling of mask types
645 * more sane, but for now we just use this to detect
646 * the use of 'virtual' masks such as numlock and convert them to
647 * system-specific mask values (i.e. ModMask).
650 static Accessibility_ControllerEventMask
651 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
653 Accessibility_ControllerEventMask tmp_mask;
654 gboolean has_numlock;
656 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
660 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
661 tmp_mask |= _numlock_physical_mask;
667 static DEControllerKeyListener *
668 spi_dec_key_listener_new (CORBA_Object l,
669 const Accessibility_KeySet *keys,
670 const Accessibility_ControllerEventMask mask,
671 const Accessibility_EventTypeSeq *typeseq,
672 const Accessibility_EventListenerMode *mode,
673 CORBA_Environment *ev)
675 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
676 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
677 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
678 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
679 key_listener->mask = spi_dec_translate_mask (mask);
680 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
682 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
684 key_listener->mode = NULL;
687 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
688 (unsigned int) key_listener->mask,
689 (int) (mode ? mode->global : 0),
690 (void *) key_listener->keys,
691 (int) (key_listener->keys ? key_listener->keys->_length : 0));
697 static DEControllerListener *
698 spi_dec_listener_new (CORBA_Object l,
699 const Accessibility_EventTypeSeq *typeseq,
700 CORBA_Environment *ev)
702 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
703 listener->object = bonobo_object_dup_ref (l, ev);
704 listener->type = SPI_DEVICE_TYPE_MOUSE;
705 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
709 static DEControllerListener *
710 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
712 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
714 CORBA_Object_duplicate (listener->object, ev);
715 clone->type = listener->type;
716 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
720 static DEControllerKeyListener *
721 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
723 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
724 clone->listener.object =
725 CORBA_Object_duplicate (key_listener->listener.object, ev);
726 clone->listener.type = SPI_DEVICE_TYPE_KBD;
727 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
728 clone->mask = key_listener->mask;
729 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
730 if (key_listener->mode)
731 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
738 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
740 CORBA_free (key_listener->listener.typeseq);
741 CORBA_free (key_listener->keys);
742 g_free (key_listener);
746 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
748 CORBA_Object_release (clone->listener.object, ev);
749 spi_key_listener_data_free (clone, ev);
753 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
755 CORBA_Object_release (clone->object, ev);
756 CORBA_free (clone->typeseq);
761 spi_dec_listener_free (DEControllerListener *listener,
762 CORBA_Environment *ev)
764 bonobo_object_release_unref (listener->object, ev);
765 if (listener->type == SPI_DEVICE_TYPE_KBD)
766 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
770 _register_keygrab (SpiDEController *controller,
771 DEControllerGrabMask *grab_mask)
775 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
776 spi_grab_mask_compare_values);
779 DEControllerGrabMask *cur_mask = l->data;
781 cur_mask->ref_count++;
782 if (cur_mask->pending_remove)
784 cur_mask->pending_remove = FALSE;
789 controller->keygrabs_list =
790 g_list_prepend (controller->keygrabs_list,
791 spi_grab_mask_clone (grab_mask));
796 _deregister_keygrab (SpiDEController *controller,
797 DEControllerGrabMask *grab_mask)
801 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
802 spi_grab_mask_compare_values);
806 DEControllerGrabMask *cur_mask = l->data;
808 cur_mask->ref_count--;
809 if (cur_mask->ref_count <= 0)
811 cur_mask->pending_remove = TRUE;
816 DBG (1, g_warning ("De-registering non-existant grab"));
821 handle_keygrab (SpiDEController *controller,
822 DEControllerKeyListener *key_listener,
823 void (*process_cb) (SpiDEController *controller,
824 DEControllerGrabMask *grab_mask))
826 DEControllerGrabMask grab_mask = { 0 };
828 grab_mask.mod_mask = key_listener->mask;
829 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
831 grab_mask.key_val = AnyKey;
833 fprintf (stderr, "AnyKey grab!");
835 process_cb (controller, &grab_mask);
841 for (i = 0; i < key_listener->keys->_length; ++i)
843 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
844 long int key_val = keydef.keysym;
845 /* X Grabs require keycodes, not keysyms */
846 if (keydef.keystring && keydef.keystring[0])
848 key_val = XStringToKeysym(keydef.keystring);
852 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
856 key_val = keydef.keycode;
858 grab_mask.key_val = key_val;
859 process_cb (controller, &grab_mask);
865 spi_controller_register_global_keygrabs (SpiDEController *controller,
866 DEControllerKeyListener *key_listener)
868 handle_keygrab (controller, key_listener, _register_keygrab);
869 if (controller->xevie_display == NULL)
870 return spi_controller_update_key_grabs (controller, NULL);
876 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
877 DEControllerKeyListener *key_listener)
879 handle_keygrab (controller, key_listener, _deregister_keygrab);
880 if (controller->xevie_display == NULL)
881 spi_controller_update_key_grabs (controller, NULL);
885 spi_controller_register_device_listener (SpiDEController *controller,
886 DEControllerListener *listener,
887 CORBA_Environment *ev)
889 DEControllerKeyListener *key_listener;
891 switch (listener->type) {
892 case SPI_DEVICE_TYPE_KBD:
893 key_listener = (DEControllerKeyListener *) listener;
895 controller->key_listeners = g_list_prepend (controller->key_listeners,
897 if (key_listener->mode->global)
899 return spi_controller_register_global_keygrabs (controller, key_listener);
904 case SPI_DEVICE_TYPE_MOUSE:
905 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
908 DBG (1, g_warning ("listener registration for unknown device type.\n"));
915 spi_controller_notify_mouselisteners (SpiDEController *controller,
916 const Accessibility_DeviceEvent *event,
917 CORBA_Environment *ev)
920 GSList *notify = NULL, *l2;
921 GList **listeners = &controller->mouse_listeners;
922 gboolean is_consumed;
923 #ifdef SPI_KEYEVENT_DEBUG
924 gboolean found = FALSE;
931 for (l = *listeners; l; l = l->next)
933 DEControllerListener *listener = l->data;
935 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
937 Accessibility_DeviceEventListener ls = listener->object;
939 if (ls != CORBA_OBJECT_NIL)
941 /* we clone (don't dup) the listener, to avoid refcount inc. */
942 notify = g_slist_prepend (notify,
943 spi_listener_clone (listener, ev));
944 #ifdef SPI_KEYEVENT_DEBUG
951 #ifdef SPI_KEYEVENT_DEBUG
954 g_print ("no match for event\n");
959 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
961 DEControllerListener *listener = l2->data;
962 Accessibility_DeviceEventListener ls = listener->object;
964 CORBA_exception_init (ev);
965 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
969 DBG (2, g_warning ("error notifying listener, removing it\n"));
970 spi_deregister_controller_device_listener (controller, listener,
972 CORBA_exception_free (ev);
975 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
978 for (; l2; l2 = l2->next)
980 DEControllerListener *listener = l2->data;
981 spi_listener_clone_free (listener, ev);
982 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
985 g_slist_free (notify);
988 if (is_consumed) g_message ("consumed\n");
994 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
997 Accessibility_Event e;
998 Accessibility_DeviceEvent mouse_e;
999 CORBA_Environment ev;
1000 gchar event_name[24];
1001 gboolean is_consumed = FALSE;
1002 gboolean xkb_mod_unlatch_occurred;
1003 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1005 int button = xbutton_event->button;
1007 unsigned int mouse_button_state = xbutton_event->state;
1012 mouse_button_state |= Button1Mask;
1015 mouse_button_state |= Button2Mask;
1018 mouse_button_state |= Button3Mask;
1021 mouse_button_state |= Button4Mask;
1024 mouse_button_state |= Button5Mask;
1028 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1029 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1032 fprintf (stderr, "mouse button %d %s (%x)\n",
1033 xbutton_event->button,
1034 (xevent->type == ButtonPress) ? "Press" : "Release",
1035 mouse_button_state);
1037 snprintf (event_name, 22, "mouse:button:%d%c", button,
1038 (xevent->type == ButtonPress) ? 'p' : 'r');
1040 /* TODO: FIXME distinguish between physical and logical buttons */
1041 mouse_e.type = (xevent->type == ButtonPress) ?
1042 Accessibility_BUTTON_PRESSED_EVENT :
1043 Accessibility_BUTTON_RELEASED_EVENT;
1044 mouse_e.id = button;
1045 mouse_e.hw_code = button;
1046 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
1047 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
1048 mouse_e.event_string = "";
1049 mouse_e.is_text = CORBA_FALSE;
1050 if ((mouse_button_state & mouse_button_mask) !=
1051 (mouse_mask_state & mouse_button_mask))
1053 if ((mouse_mask_state & key_modifier_mask) !=
1054 (mouse_button_state & key_modifier_mask))
1055 spi_dec_emit_modifier_event (controller,
1056 mouse_mask_state, mouse_button_state);
1057 mouse_mask_state = mouse_button_state;
1059 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
1060 e.type = CORBA_string_dup (event_name);
1061 e.source = BONOBO_OBJREF (controller->registry->desktop);
1062 e.detail1 = last_mouse_pos->x;
1063 e.detail2 = last_mouse_pos->y;
1064 spi_init_any_nil (&e.any_data);
1065 CORBA_exception_init (&ev);
1067 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
1072 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1073 xevent->type == ButtonRelease);
1075 /* if client wants to consume this event, and XKB latch state was
1076 * unset by this button event, we reset it
1078 if (is_consumed && xkb_mod_unlatch_occurred)
1079 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1081 XAllowEvents (spi_get_display (),
1082 (is_consumed) ? SyncPointer : ReplayPointer,
1086 static GdkFilterReturn
1087 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1089 XEvent *xevent = gdk_xevent;
1090 SpiDEController *controller;
1091 DEControllerPrivateData *priv;
1092 Display *display = spi_get_display ();
1093 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1094 priv = (DEControllerPrivateData *)
1095 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1097 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1099 if (controller->xevie_display == NULL)
1101 gboolean is_consumed;
1104 spi_device_event_controller_forward_key_event (controller, xevent);
1111 n_events = XPending (display);
1113 #ifdef SPI_KEYEVENT_DEBUG
1114 g_print ("Number of events pending: %d\n", n_events);
1116 for (i = 0; i < n_events; i++)
1118 XNextEvent (display, &next_event);
1119 if (next_event.type != KeyPress &&
1120 next_event.type != KeyRelease)
1121 g_warning ("Unexpected event type %d in queue", next_event.type);
1124 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1126 XUngrabKeyboard (display, CurrentTime);
1130 if (xevent->type == KeyPress)
1131 wait_for_release_event (xevent, controller);
1132 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1136 return GDK_FILTER_CONTINUE;
1138 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1140 spi_device_event_controller_forward_mouse_event (controller, xevent);
1142 if (xevent->type == priv->xkb_base_event_code)
1144 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1145 /* ugly but probably necessary...*/
1146 XSynchronize (display, TRUE);
1148 if (xkb_ev->xkb_type == XkbStateNotify)
1150 XkbStateNotifyEvent *xkb_snev =
1151 (XkbStateNotifyEvent *) xkb_ev;
1152 /* check the mouse, to catch mouse events grabbed by
1153 * another client; in case we should revert this XKB delatch
1155 if (!priv->pending_xkb_mod_relatch_mask)
1159 spi_dec_mouse_check (controller, &x, &y, &moved);
1161 /* we check again, since the previous call may have
1162 changed this flag */
1163 if (priv->pending_xkb_mod_relatch_mask)
1165 unsigned int feedback_mask;
1166 #ifdef SPI_XKB_DEBUG
1167 fprintf (stderr, "relatching %x\n",
1168 priv->pending_xkb_mod_relatch_mask);
1170 /* temporarily turn off the latch bell, if it's on */
1171 XkbGetControls (display,
1172 XkbAccessXFeedbackMask,
1174 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1175 if (feedback_mask & XkbAX_StickyKeysFBMask)
1177 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1179 priv->xkb_desc->ctrls->ax_options
1180 &= ~(XkbAX_StickyKeysFBMask);
1181 XkbChangeControls (display, priv->xkb_desc, &changes);
1183 /* TODO: account for lock as well as latch */
1184 XkbLatchModifiers (display,
1186 priv->pending_xkb_mod_relatch_mask,
1187 priv->pending_xkb_mod_relatch_mask);
1188 if (feedback_mask & XkbAX_StickyKeysFBMask)
1190 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1192 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1193 XkbChangeControls (display, priv->xkb_desc, &changes);
1195 #ifdef SPI_XKB_DEBUG
1196 fprintf (stderr, "relatched %x\n",
1197 priv->pending_xkb_mod_relatch_mask);
1199 priv->pending_xkb_mod_relatch_mask = 0;
1203 priv->xkb_latch_mask = xkb_snev->latched_mods;
1207 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1208 XSynchronize (display, FALSE);
1211 return GDK_FILTER_CONTINUE;
1215 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1217 if (error->error_code == BadAccess)
1219 g_message ("Could not complete key grab: grab already in use.\n");
1220 spi_error_code = BadAccess;
1225 return (*x_default_error_handler) (display, error);
1230 spi_controller_register_with_devices (SpiDEController *controller)
1232 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1233 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1234 /* FIXME: should check for extension first! */
1235 XTestGrabControl (spi_get_display (), True);
1237 /* calls to device-specific implementations and routines go here */
1238 /* register with: keyboard hardware code handler */
1239 /* register with: (translated) keystroke handler */
1241 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1242 &priv->xkb_major_extension_opcode,
1243 &priv->xkb_base_event_code,
1244 &priv->xkb_base_error_code, NULL, NULL);
1248 guint64 reserved = 0;
1249 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1250 XkbSelectEvents (spi_get_display (),
1252 XkbStateNotifyMask, XkbStateNotifyMask);
1253 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1255 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1257 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1259 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1261 /* don't use this one if there's a grab client! */
1262 gdk_error_trap_push ();
1263 XGrabKey (spi_get_display (), i, 0,
1264 gdk_x11_get_default_root_xwindow (),
1266 GrabModeSync, GrabModeSync);
1267 XSync (spi_get_display (), TRUE);
1268 XUngrabKey (spi_get_display (), i, 0,
1269 gdk_x11_get_default_root_xwindow ());
1270 if (!gdk_error_trap_pop ())
1280 priv->reserved_keycode = reserved;
1281 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1285 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1286 priv->reserved_keysym = XK_numbersign;
1288 #ifdef SPI_RESERVED_DEBUG
1290 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1291 fprintf (stderr, "%x\n", sym);
1292 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1294 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1299 gdk_window_add_filter (NULL, global_filter_fn, controller);
1301 gdk_window_set_events (gdk_get_default_root_window (),
1302 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1304 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1308 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1309 const Accessibility_DeviceEvent *key_event)
1316 g_print ("null key set!");
1320 len = key_set->_length;
1322 if (len == 0) /* special case, means "all keys/any key" */
1324 g_print ("anykey\n");
1328 for (i = 0; i < len; ++i)
1330 #ifdef SPI_KEYEVENT_DEBUG
1331 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1333 (int)key_set->_buffer[i].keysym,
1334 (int) key_set->_buffer[i].keycode,
1335 (int) key_event->id,
1336 (int) key_event->hw_code,
1337 key_event->event_string);
1339 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1343 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1347 if (key_event->event_string && key_event->event_string[0] &&
1348 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1358 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1359 const Accessibility_DeviceEvent *event)
1367 g_print ("null type seq!");
1371 len = type_seq->_length;
1373 if (len == 0) /* special case, means "all events/any event" */
1378 for (i = 0; i < len; ++i)
1381 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1382 (int) type_seq->_buffer[i], (int) event->type);
1384 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1394 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1395 DEControllerKeyListener *listener,
1396 CORBA_boolean is_system_global)
1398 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1399 spi_key_set_contains_key (listener->keys, key_event) &&
1400 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1401 (is_system_global == listener->mode->global))
1412 spi_controller_notify_keylisteners (SpiDEController *controller,
1413 const Accessibility_DeviceEvent *key_event,
1414 CORBA_boolean is_system_global,
1415 CORBA_Environment *ev)
1418 GSList *notify = NULL, *l2;
1419 GList **key_listeners = &controller->key_listeners;
1420 gboolean is_consumed;
1427 for (l = *key_listeners; l; l = l->next)
1429 DEControllerKeyListener *key_listener = l->data;
1431 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1433 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1435 if (ls != CORBA_OBJECT_NIL)
1437 /* we clone (don't dup) the listener, to avoid refcount inc. */
1438 notify = g_slist_prepend (notify,
1439 spi_key_listener_clone (key_listener, ev));
1444 #ifdef SPI_KEYEVENT_DEBUG
1447 g_print ("no match for event\n");
1451 is_consumed = FALSE;
1452 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1454 DEControllerKeyListener *key_listener = l2->data;
1455 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1457 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev) &&
1458 key_listener->mode->preemptive;
1462 is_consumed = FALSE;
1463 spi_deregister_controller_key_listener (controller, key_listener,
1465 CORBA_exception_free (ev);
1468 spi_key_listener_clone_free (key_listener, ev);
1471 for (; l2; l2 = l2->next)
1473 DEControllerKeyListener *key_listener = l2->data;
1474 spi_key_listener_clone_free (key_listener, ev);
1475 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1478 g_slist_free (notify);
1481 if (is_consumed) g_message ("consumed\n");
1487 spi_clear_error_state (void)
1489 gboolean retval = spi_error_code != 0;
1494 static Accessibility_DeviceEvent
1495 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1497 Accessibility_DeviceEvent key_event;
1499 const int cbuf_bytes = 20;
1503 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1504 key_event.id = (CORBA_long)(keysym);
1505 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1506 if (((XEvent *) x_key_event)->type == KeyPress)
1508 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1512 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1514 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1515 key_event.is_text = CORBA_FALSE;
1519 key_event.event_string = CORBA_string_dup ("space");
1522 key_event.event_string = CORBA_string_dup ("Tab");
1525 key_event.event_string = CORBA_string_dup ("Backspace");
1528 key_event.event_string = CORBA_string_dup ("Return");
1531 key_event.event_string = CORBA_string_dup ("Home");
1534 key_event.event_string = CORBA_string_dup ("Page_Down");
1537 key_event.event_string = CORBA_string_dup ("Page_Up");
1540 key_event.event_string = CORBA_string_dup ("F1");
1543 key_event.event_string = CORBA_string_dup ("F2");
1546 key_event.event_string = CORBA_string_dup ("F3");
1549 key_event.event_string = CORBA_string_dup ("F4");
1552 key_event.event_string = CORBA_string_dup ("F5");
1555 key_event.event_string = CORBA_string_dup ("F6");
1558 key_event.event_string = CORBA_string_dup ("F7");
1561 key_event.event_string = CORBA_string_dup ("F8");
1564 key_event.event_string = CORBA_string_dup ("F9");
1567 key_event.event_string = CORBA_string_dup ("F10");
1570 key_event.event_string = CORBA_string_dup ("F11");
1573 key_event.event_string = CORBA_string_dup ("F12");
1576 key_event.event_string = CORBA_string_dup ("End");
1579 key_event.event_string = CORBA_string_dup ("Escape");
1582 key_event.event_string = CORBA_string_dup ("Up");
1585 key_event.event_string = CORBA_string_dup ("Down");
1588 key_event.event_string = CORBA_string_dup ("Left");
1591 key_event.event_string = CORBA_string_dup ("Right");
1597 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1598 key_event.event_string = CORBA_string_dup (cbuf);
1599 c = keysym2ucs (keysym);
1600 if (c > 0 && !g_unichar_iscntrl (c))
1602 key_event.is_text = CORBA_TRUE;
1603 /* incorrect for some composed chars? */
1608 key_event.event_string = CORBA_string_dup ("");
1612 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1613 #ifdef SPI_KEYEVENT_DEBUG
1615 char *pressed_str = "pressed";
1616 char *released_str = "released";
1619 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1620 state_ptr = pressed_str;
1622 state_ptr = released_str;
1625 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1626 (unsigned long) keysym,
1628 keysym ? (int) keysym : '*',
1629 (int) x_key_event->state,
1630 key_event.event_string,
1631 key_event.event_string[0],
1632 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1636 fprintf (stderr, "%s%c\n",
1637 (x_key_event->state & Mod1Mask)?"Alt-":"",
1638 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1639 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1640 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1641 #endif /* SPI_DEBUG */
1646 spi_controller_update_key_grabs (SpiDEController *controller,
1647 Accessibility_DeviceEvent *recv)
1650 gboolean update_failed = FALSE;
1653 g_return_val_if_fail (controller != NULL, FALSE);
1656 * masks known to work with default RH 7.1+:
1657 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1658 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1659 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1660 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1662 * ControlMask grabs are broken, must be in use already
1665 keycode = keycode_for_keysym (controller, recv->id, NULL);
1666 for (l = controller->keygrabs_list; l; l = next)
1669 gboolean re_issue_grab;
1670 DEControllerGrabMask *grab_mask = l->data;
1674 re_issue_grab = recv &&
1675 (recv->modifiers & grab_mask->mod_mask) &&
1676 (grab_mask->key_val == keycode);
1679 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1680 (long int) grab_mask->key_val,
1681 (long int) grab_mask->mod_mask,
1682 grab_mask->pending_add ? '+' : '.',
1683 grab_mask->pending_remove ? '-' : '.',
1684 re_issue_grab ? "re-issue": "");
1689 if (grab_mask->pending_add && grab_mask->pending_remove)
1693 else if (grab_mask->pending_remove)
1696 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1698 XUngrabKey (spi_get_display (),
1700 grab_mask->mod_mask,
1701 gdk_x11_get_default_root_xwindow ());
1705 else if (grab_mask->pending_add || re_issue_grab)
1709 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1711 XGrabKey (spi_get_display (),
1713 grab_mask->mod_mask,
1714 gdk_x11_get_default_root_xwindow (),
1718 XSync (spi_get_display (), False);
1719 update_failed = spi_clear_error_state ();
1720 if (update_failed) {
1721 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1726 grab_mask->pending_add = FALSE;
1727 grab_mask->pending_remove = FALSE;
1731 g_assert (grab_mask->ref_count <= 0);
1733 controller->keygrabs_list = g_list_delete_link (
1734 controller->keygrabs_list, l);
1736 spi_grab_mask_free (grab_mask);
1741 return ! update_failed;
1745 * Implemented GObject::finalize
1748 spi_device_event_controller_object_finalize (GObject *object)
1750 SpiDEController *controller;
1751 DEControllerPrivateData *private;
1752 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1755 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1757 /* disconnect any special listeners, get rid of outstanding keygrabs */
1758 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1761 if (controller->xevie_display != NULL)
1763 XevieEnd(controller->xevie_display);
1764 #ifdef SPI_KEYEVENT_DEBUG
1765 printf("XevieEnd(dpy) finished \n");
1770 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1771 if (private->xkb_desc)
1772 XkbFreeKeyboard (private->xkb_desc, 0, True);
1774 spi_device_event_controller_parent_class->finalize (object);
1778 * CORBA Accessibility::DEController::registerKeystrokeListener
1779 * method implementation
1781 static CORBA_boolean
1782 impl_register_keystroke_listener (PortableServer_Servant servant,
1783 const Accessibility_DeviceEventListener l,
1784 const Accessibility_KeySet *keys,
1785 const Accessibility_ControllerEventMask mask,
1786 const Accessibility_EventTypeSeq *type,
1787 const Accessibility_EventListenerMode *mode,
1788 CORBA_Environment *ev)
1790 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1791 bonobo_object_from_servant (servant));
1792 DEControllerKeyListener *dec_listener;
1794 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1795 (void *) l, (unsigned long) mask);
1797 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1798 return spi_controller_register_device_listener (
1799 controller, (DEControllerListener *) dec_listener, ev);
1804 * CORBA Accessibility::DEController::registerDeviceEventListener
1805 * method implementation
1807 static CORBA_boolean
1808 impl_register_device_listener (PortableServer_Servant servant,
1809 const Accessibility_DeviceEventListener l,
1810 const Accessibility_EventTypeSeq *event_types,
1811 CORBA_Environment *ev)
1813 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1814 bonobo_object_from_servant (servant));
1815 DEControllerListener *dec_listener;
1817 dec_listener = spi_dec_listener_new (l, event_types, ev);
1818 return spi_controller_register_device_listener (
1819 controller, (DEControllerListener *) dec_listener, ev);
1823 CORBA_Environment *ev;
1824 DEControllerListener *listener;
1825 } RemoveListenerClosure;
1827 static SpiReEntrantContinue
1828 remove_listener_cb (GList * const *list,
1831 DEControllerListener *listener = (*list)->data;
1832 RemoveListenerClosure *ctx = user_data;
1834 if (CORBA_Object_is_equivalent (ctx->listener->object,
1835 listener->object, ctx->ev))
1837 spi_re_entrant_list_delete_link (list);
1838 spi_dec_listener_free (listener, ctx->ev);
1841 return SPI_RE_ENTRANT_CONTINUE;
1844 static SpiReEntrantContinue
1845 copy_key_listener_cb (GList * const *list,
1848 DEControllerKeyListener *key_listener = (*list)->data;
1849 RemoveListenerClosure *ctx = user_data;
1851 if (CORBA_Object_is_equivalent (ctx->listener->object,
1852 key_listener->listener.object, ctx->ev))
1854 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1855 DEControllerKeyListener *ctx_key_listener =
1856 (DEControllerKeyListener *) ctx->listener;
1857 CORBA_free (ctx_key_listener->keys);
1858 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1861 return SPI_RE_ENTRANT_CONTINUE;
1865 spi_deregister_controller_device_listener (SpiDEController *controller,
1866 DEControllerListener *listener,
1867 CORBA_Environment *ev)
1869 RemoveListenerClosure ctx;
1872 ctx.listener = listener;
1874 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1875 remove_listener_cb, &ctx);
1879 spi_deregister_controller_key_listener (SpiDEController *controller,
1880 DEControllerKeyListener *key_listener,
1881 CORBA_Environment *ev)
1883 RemoveListenerClosure ctx;
1886 ctx.listener = (DEControllerListener *) key_listener;
1888 /* special case, copy keyset from existing controller list entry */
1889 if (key_listener->keys->_length == 0)
1891 spi_re_entrant_list_foreach (&controller->key_listeners,
1892 copy_key_listener_cb, &ctx);
1895 spi_controller_deregister_global_keygrabs (controller, key_listener);
1897 spi_re_entrant_list_foreach (&controller->key_listeners,
1898 remove_listener_cb, &ctx);
1903 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1904 * method implementation
1907 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1908 const Accessibility_DeviceEventListener l,
1909 const Accessibility_KeySet *keys,
1910 const Accessibility_ControllerEventMask mask,
1911 const Accessibility_EventTypeSeq *type,
1912 CORBA_Environment *ev)
1914 DEControllerKeyListener *key_listener;
1915 SpiDEController *controller;
1917 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1919 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1921 #ifdef SPI_DEREGISTER_DEBUG
1922 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1923 (void *) l, (unsigned long) mask->value);
1926 spi_deregister_controller_key_listener (controller, key_listener, ev);
1928 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1932 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1933 * method implementation
1936 impl_deregister_device_listener (PortableServer_Servant servant,
1937 const Accessibility_DeviceEventListener l,
1938 const Accessibility_EventTypeSeq *event_types,
1939 CORBA_Environment *ev)
1941 SpiDEController *controller;
1942 DEControllerListener *listener =
1943 spi_dec_listener_new (l, event_types, ev);
1945 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1947 spi_deregister_controller_device_listener (controller, listener, ev);
1949 spi_dec_listener_free (listener, ev);
1952 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1954 unsigned int retval = 0;
1955 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1956 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1958 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1959 retval = XkbGetSlowKeysDelay (spi_get_display (),
1960 XkbUseCoreKbd, &bounce_delay);
1962 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1964 Status s = XkbGetControls (spi_get_display (),
1965 XkbAllControlsMask, priv->xkb_desc);
1968 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1969 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1974 #ifdef SPI_XKB_DEBUG
1975 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1980 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1982 unsigned int retval = 0;
1983 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1984 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1986 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1987 retval = XkbGetBounceKeysDelay (spi_get_display (),
1988 XkbUseCoreKbd, &bounce_delay);
1990 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1992 Status s = XkbGetControls (spi_get_display (),
1993 XkbAllControlsMask, priv->xkb_desc);
1996 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1997 retval = priv->xkb_desc->ctrls->debounce_delay;
2002 #ifdef SPI_XKB_DEBUG
2003 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2009 dec_synth_keycode_press (SpiDEController *controller,
2010 unsigned int keycode)
2012 unsigned int time = CurrentTime;
2013 unsigned int bounce_delay;
2014 unsigned int elapsed_msec;
2016 DEControllerPrivateData *priv =
2017 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2018 spi_dec_private_quark);
2019 if (keycode == priv->last_release_keycode)
2021 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2024 gettimeofday (&tv, NULL);
2026 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2027 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2028 #ifdef SPI_XKB_DEBUG
2029 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2030 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2032 #ifdef THIS_IS_BROKEN
2033 if (elapsed_msec < bounce_delay)
2034 time = bounce_delay - elapsed_msec + 1;
2036 time = bounce_delay + 10;
2037 /* fudge for broken XTest */
2039 #ifdef SPI_XKB_DEBUG
2040 fprintf (stderr, "waiting %d ms\n", time);
2044 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2045 priv->last_press_keycode = keycode;
2046 XFlush (spi_get_display ());
2047 XSync (spi_get_display (), False);
2048 gettimeofday (&priv->last_press_time, NULL);
2053 dec_synth_keycode_release (SpiDEController *controller,
2054 unsigned int keycode)
2056 unsigned int time = CurrentTime;
2057 unsigned int slow_delay;
2058 unsigned int elapsed_msec;
2060 DEControllerPrivateData *priv =
2061 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2062 spi_dec_private_quark);
2063 if (keycode == priv->last_press_keycode)
2065 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2068 gettimeofday (&tv, NULL);
2070 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2071 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2072 #ifdef SPI_XKB_DEBUG
2073 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2074 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2076 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2077 if (elapsed_msec < slow_delay)
2078 time = slow_delay - elapsed_msec + 1;
2080 time = slow_delay + 10;
2081 /* our XTest seems broken, we have to add slop as above */
2083 #ifdef SPI_XKB_DEBUG
2084 fprintf (stderr, "waiting %d ms\n", time);
2088 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2089 priv->last_release_keycode = keycode;
2090 XSync (spi_get_display (), False);
2091 gettimeofday (&priv->last_release_time, NULL);
2096 dec_get_modifier_state (SpiDEController *controller)
2098 return mouse_mask_state;
2102 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2104 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2105 modifiers, modifiers);
2109 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2111 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2116 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2118 return ucs2keysym ((long) unichar);
2122 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2124 KeyCode key_synth_code;
2125 unsigned int modifiers, synth_mods, lock_mods;
2127 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2129 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2131 /* TODO: set the modifiers accordingly! */
2132 modifiers = dec_get_modifier_state (controller);
2133 /* side-effect; we may unset mousebutton modifiers here! */
2136 if (synth_mods != modifiers) {
2137 lock_mods = synth_mods & ~modifiers;
2138 dec_lock_modifiers (controller, lock_mods);
2140 dec_synth_keycode_press (controller, key_synth_code);
2141 dec_synth_keycode_release (controller, key_synth_code);
2143 if (synth_mods != modifiers)
2144 dec_unlock_modifiers (controller, lock_mods);
2150 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
2152 /* probably we need to create and inject an XIM handler eventually. */
2153 /* for now, try to match the string to existing
2154 * keycode+modifier states.
2158 gunichar unichar = 0;
2160 gboolean retval = TRUE;
2163 maxlen = strlen (keystring);
2164 keysyms = g_new0 (KeySym, maxlen);
2165 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2170 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2172 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2177 mbytes = g_unichar_to_utf8 (unichar, bytes);
2178 bytes[mbytes] = '\0';
2180 fprintf (stderr, "[unichar %s]", bytes);
2182 keysym = dec_keysym_for_unichar (controller, unichar);
2183 if (keysym == NoSymbol) {
2185 fprintf (stderr, "no keysym for %s", bytes);
2190 keysyms[i++] = keysym;
2191 keystring = g_utf8_next_char (keystring);
2194 XSynchronize (spi_get_display (), TRUE);
2195 for (i = 0; keysyms[i]; ++i) {
2196 if (!dec_synth_keysym (controller, keysyms[i])) {
2198 fprintf (stderr, "could not synthesize %c\n",
2205 XSynchronize (spi_get_display (), FALSE);
2214 * CORBA Accessibility::DEController::registerKeystrokeListener
2215 * method implementation
2218 impl_generate_keyboard_event (PortableServer_Servant servant,
2219 const CORBA_long keycode,
2220 const CORBA_char *keystring,
2221 const Accessibility_KeySynthType synth_type,
2222 CORBA_Environment *ev)
2224 SpiDEController *controller =
2225 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2230 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2231 (long) keycode, (int) synth_type);
2233 /* TODO: hide/wrap/remove X dependency */
2236 * TODO: when initializing, query for XTest extension before using,
2237 * and fall back to XSendEvent() if XTest is not available.
2240 gdk_error_trap_push ();
2244 case Accessibility_KEY_PRESS:
2245 dec_synth_keycode_press (controller, keycode);
2247 case Accessibility_KEY_PRESSRELEASE:
2248 dec_synth_keycode_press (controller, keycode);
2249 case Accessibility_KEY_RELEASE:
2250 dec_synth_keycode_release (controller, keycode);
2252 case Accessibility_KEY_SYM:
2253 #ifdef SPI_XKB_DEBUG
2254 fprintf (stderr, "KeySym synthesis\n");
2257 * note: we are using long for 'keycode'
2258 * in our arg list; it can contain either
2259 * a keycode or a keysym.
2261 dec_synth_keysym (controller, (KeySym) keycode);
2263 case Accessibility_KEY_STRING:
2264 if (!dec_synth_keystring (controller, keystring))
2265 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2269 if ((err = gdk_error_trap_pop ()))
2271 DBG (-1, g_warning ("Error [%d] emitting keystroke", err));
2273 if (synth_type == Accessibility_KEY_SYM) {
2277 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2279 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2281 spi_dec_clear_unlatch_pending (controller);
2285 /* Accessibility::DEController::generateMouseEvent */
2287 impl_generate_mouse_event (PortableServer_Servant servant,
2290 const CORBA_char *eventName,
2291 CORBA_Environment *ev)
2294 gboolean error = FALSE;
2295 Display *display = spi_get_display ();
2297 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2298 eventName, (long int) x, (long int) y);
2300 switch (eventName[0])
2303 switch (eventName[1])
2305 /* TODO: check number of buttons before parsing */
2326 if (x != -1 && y != -1)
2328 XTestFakeMotionEvent (display, DefaultScreen (display),
2331 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2332 if (eventName[2] == 'c')
2333 XTestFakeButtonEvent (display, button, FALSE, 1);
2334 else if (eventName[2] == 'd')
2336 XTestFakeButtonEvent (display, button, FALSE, 1);
2337 XTestFakeButtonEvent (display, button, TRUE, 2);
2338 XTestFakeButtonEvent (display, button, FALSE, 3);
2342 case 'r': /* relative motion */
2343 XTestFakeRelativeMotionEvent (display, x, y, 0);
2345 case 'a': /* absolute motion */
2346 XTestFakeMotionEvent (display, DefaultScreen (display),
2352 /* Accessibility::DEController::notifyListenersSync */
2353 static CORBA_boolean
2354 impl_notify_listeners_sync (PortableServer_Servant servant,
2355 const Accessibility_DeviceEvent *event,
2356 CORBA_Environment *ev)
2358 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2359 bonobo_object_from_servant (servant));
2361 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2362 controller, (int) event->id);
2364 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
2365 CORBA_TRUE : CORBA_FALSE;
2368 /* Accessibility::DEController::notifyListenersAsync */
2370 impl_notify_listeners_async (PortableServer_Servant servant,
2371 const Accessibility_DeviceEvent *event,
2372 CORBA_Environment *ev)
2374 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2375 bonobo_object_from_servant (servant));
2377 fprintf (stderr, "notifying listeners asynchronously\n");
2379 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
2383 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2385 GObjectClass * object_class = (GObjectClass *) klass;
2386 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2388 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2390 object_class->finalize = spi_device_event_controller_object_finalize;
2392 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2393 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2394 epv->registerDeviceEventListener = impl_register_device_listener;
2395 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2396 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2397 epv->generateMouseEvent = impl_generate_mouse_event;
2398 epv->notifyListenersSync = impl_notify_listeners_sync;
2399 epv->notifyListenersAsync = impl_notify_listeners_async;
2401 if (!spi_dec_private_quark)
2402 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2406 Bool isEvent(dpy,event,arg)
2415 handle_io (GIOChannel *source,
2416 GIOCondition condition,
2419 SpiDEController *controller = (SpiDEController *) data;
2420 gboolean is_consumed = FALSE;
2423 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2425 if (ev.type == KeyPress || ev.type == KeyRelease)
2426 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2429 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2434 #endif /* HAVE_XEVIE */
2437 spi_device_event_controller_init (SpiDEController *device_event_controller)
2442 #endif /* HAVE_XEVIE */
2444 DEControllerPrivateData *private;
2445 device_event_controller->key_listeners = NULL;
2446 device_event_controller->mouse_listeners = NULL;
2447 device_event_controller->keygrabs_list = NULL;
2448 device_event_controller->xevie_display = NULL;
2451 device_event_controller->xevie_display = XOpenDisplay(NULL);
2453 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2455 #ifdef SPI_KEYEVENT_DEBUG
2456 fprintf (stderr, "XevieStart() success \n");
2458 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2460 fd = ConnectionNumber(device_event_controller->xevie_display);
2461 ioc = g_io_channel_unix_new (fd);
2462 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2463 g_io_channel_unref (ioc);
2467 device_event_controller->xevie_display = NULL;
2468 #ifdef SPI_KEYEVENT_DEBUG
2469 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2472 #endif /* HAVE_XEVIE */
2474 private = g_new0 (DEControllerPrivateData, 1);
2475 gettimeofday (&private->last_press_time, NULL);
2476 gettimeofday (&private->last_release_time, NULL);
2477 g_object_set_qdata (G_OBJECT (device_event_controller),
2478 spi_dec_private_quark,
2480 spi_controller_register_with_devices (device_event_controller);
2484 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2485 const XEvent *event)
2487 CORBA_Environment ev;
2488 Accessibility_DeviceEvent key_event;
2490 g_assert (event->type == KeyPress || event->type == KeyRelease);
2492 CORBA_exception_init (&ev);
2494 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2496 if (controller->xevie_display == NULL)
2497 spi_controller_update_key_grabs (controller, &key_event);
2499 /* relay to listeners, and decide whether to consume it or not */
2500 return spi_controller_notify_keylisteners (controller, &key_event, CORBA_TRUE, &ev);
2504 spi_device_event_controller_new (SpiRegistry *registry)
2506 SpiDEController *retval = g_object_new (
2507 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2509 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2510 BONOBO_OBJECT (registry)));
2512 spi_dec_init_mouse_listener (registry);
2513 /* TODO: kill mouse listener on finalize */
2518 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)