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;
85 static XModifierKeymap* xmkeymap = NULL;
87 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
91 SPI_DEVICE_TYPE_MOUSE,
92 SPI_DEVICE_TYPE_LAST_DEFINED
93 } SpiDeviceTypeCategory;
97 guint pending_add : 1;
98 guint pending_remove : 1;
100 Accessibility_ControllerEventMask mod_mask;
101 CORBA_unsigned_long key_val; /* KeyCode */
102 } DEControllerGrabMask;
106 SpiDeviceTypeCategory type;
107 Accessibility_EventTypeSeq *typeseq;
108 } DEControllerListener;
111 DEControllerListener listener;
113 Accessibility_KeySet *keys;
114 Accessibility_ControllerEventMask mask;
115 Accessibility_EventListenerMode *mode;
116 } DEControllerKeyListener;
119 unsigned int last_press_keycode;
120 unsigned int last_release_keycode;
121 struct timeval last_press_time;
122 struct timeval last_release_time;
124 int xkb_major_extension_opcode;
125 int xkb_base_event_code;
126 int xkb_base_error_code;
127 unsigned int xkb_latch_mask;
128 unsigned int pending_xkb_mod_relatch_mask;
130 KeyCode reserved_keycode;
131 KeySym reserved_keysym;
132 guint reserved_reset_timeout;
133 } DEControllerPrivateData;
135 static void spi_controller_register_with_devices (SpiDEController *controller);
136 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
137 Accessibility_DeviceEvent *recv);
138 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
139 DEControllerListener *l,
140 CORBA_Environment *ev);
141 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
142 const XEvent *event);
143 static void spi_deregister_controller_device_listener (SpiDEController *controller,
144 DEControllerListener *listener,
145 CORBA_Environment *ev);
146 static void spi_deregister_controller_key_listener (SpiDEController *controller,
147 DEControllerKeyListener *key_listener,
148 CORBA_Environment *ev);
149 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
150 const Accessibility_DeviceEvent *event,
151 CORBA_Environment *ev);
153 static gboolean spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
154 const Accessibility_DeviceEvent *event);
155 static gboolean spi_clear_error_state (void);
156 static gboolean spi_dec_poll_mouse_moved (gpointer data);
157 static gboolean spi_dec_poll_mouse_moving (gpointer data);
158 static gboolean spi_dec_poll_mouse_idle (gpointer data);
160 #define spi_get_display() GDK_DISPLAY()
162 /* Private methods */
165 keysym_mod_mask (KeySym keysym, KeyCode keycode)
167 /* we really should use XKB and look directly at the keymap */
168 /* this is very inelegant */
169 Display *display = spi_get_display ();
170 unsigned int mods_rtn = 0;
171 unsigned int retval = 0;
174 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
175 (sym_rtn == keysym)) {
178 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
179 (sym_rtn == keysym)) {
182 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
183 (sym_rtn == keysym)) {
186 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
187 (sym_rtn == keysym)) {
190 else if (XkbLookupKeySym (display, keycode,
191 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
192 (sym_rtn == keysym)) {
193 retval = (Mod2Mask | ShiftMask);
195 else if (XkbLookupKeySym (display, keycode,
196 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
197 (sym_rtn == keysym)) {
198 retval = (Mod3Mask | ShiftMask);
200 else if (XkbLookupKeySym (display, keycode,
201 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
202 (sym_rtn == keysym)) {
203 retval = (Mod4Mask | ShiftMask);
211 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
214 Display *dpy = spi_get_display ();
216 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
218 fprintf (stderr, "ERROR getting map\n");
222 if (desc && desc->map)
224 gint offset = desc->map->key_sym_map[keycode].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 spi_accessible_new_return (atk_get_root (), FALSE, NULL),
451 Accessibility_ROLE_UNKNOWN,
453 CORBA_exception_init (&ev);
456 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
461 spi_dec_set_unlatch_pending (controller, mask_return);
463 CORBA_free (e.any_data._value);
475 spi_dec_mouse_check (SpiDEController *controller,
476 int *x, int *y, gboolean *moved)
478 Accessibility_Event e;
479 Accessibility_EventDetails *details;
480 CORBA_Environment ev;
481 int win_x_return,win_y_return;
482 unsigned int mask_return;
483 Window root_return, child_return;
484 Display *display = spi_get_display ();
487 XQueryPointer(display, DefaultRootWindow (display),
488 &root_return, &child_return,
490 &win_x_return, &win_y_return, &mask_return);
492 * Since many clients grab the pointer, and X goes an automatic
493 * pointer grab on mouse-down, we often must detect mouse button events
494 * by polling rather than via a button grab.
495 * The while loop (rather than if) is used since it's possible that
496 * multiple buttons have changed state since we last checked.
498 if (mask_return != mouse_mask_state)
500 while (spi_dec_button_update_and_emit (controller, mask_return));
503 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
505 e.type = "mouse:abs";
506 e.source = BONOBO_OBJREF (controller->registry->desktop);
509 spi_init_any_nil (&e.any_data,
510 spi_accessible_new_return (atk_get_root (), FALSE, NULL),
511 Accessibility_ROLE_UNKNOWN,
513 CORBA_exception_init (&ev);
514 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
517 details = e.any_data._value;
518 CORBA_free (details);
519 e.type = "mouse:rel";
520 e.source = BONOBO_OBJREF (controller->registry->desktop);
521 e.detail1 = *x - last_mouse_pos->x;
522 e.detail2 = *y - last_mouse_pos->y;
523 spi_init_any_nil (&e.any_data,
524 spi_accessible_new_return (atk_get_root (), FALSE, NULL),
525 Accessibility_ROLE_UNKNOWN,
527 CORBA_exception_init (&ev);
528 last_mouse_pos->x = *x;
529 last_mouse_pos->y = *y;
530 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
533 details = e.any_data._value;
534 CORBA_free (details);
546 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
549 Accessibility_Event e;
550 CORBA_Environment ev;
553 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
554 prev_mask, current_mask);
557 /* set bits for the virtual modifiers like NUMLOCK */
558 if (prev_mask & _numlock_physical_mask)
559 prev_mask |= SPI_KEYMASK_NUMLOCK;
560 if (current_mask & _numlock_physical_mask)
561 current_mask |= SPI_KEYMASK_NUMLOCK;
563 e.type = "keyboard:modifiers";
564 e.source = BONOBO_OBJREF (controller->registry->desktop);
565 e.detail1 = prev_mask & key_modifier_mask;
566 e.detail2 = current_mask & key_modifier_mask;
567 spi_init_any_nil (&e.any_data,
568 spi_accessible_new_return (atk_get_root (), FALSE, NULL),
569 Accessibility_ROLE_UNKNOWN,
571 CORBA_exception_init (&ev);
572 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
575 CORBA_free (e.any_data._value);
579 spi_dec_poll_mouse_moved (gpointer data)
581 SpiRegistry *registry = SPI_REGISTRY (data);
582 SpiDEController *controller = registry->de_controller;
587 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
589 if ((mask_return & key_modifier_mask) !=
590 (mouse_mask_state & key_modifier_mask))
592 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
593 mouse_mask_state = mask_return;
600 spi_dec_poll_mouse_idle (gpointer data)
602 if (! spi_dec_poll_mouse_moved (data))
606 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
612 spi_dec_poll_mouse_moving (gpointer data)
614 if (spi_dec_poll_mouse_moved (data))
618 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
623 #ifdef WE_NEED_UGRAB_MOUSE
625 spi_dec_ungrab_mouse (gpointer data)
627 Display *display = spi_get_display ();
630 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
631 XDefaultRootWindow (spi_get_display ()));
638 spi_dec_init_mouse_listener (SpiRegistry *registry)
641 Display *display = spi_get_display ();
643 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
648 if (XGrabButton (display, AnyButton, AnyModifier,
649 gdk_x11_get_default_root_xwindow (),
650 True, ButtonPressMask | ButtonReleaseMask,
651 GrabModeSync, GrabModeAsync, None, None) != Success) {
653 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
657 XSync (display, False);
659 fprintf (stderr, "mouse buttons grabbed\n");
666 * Eventually we can use this to make the marshalling of mask types
667 * more sane, but for now we just use this to detect
668 * the use of 'virtual' masks such as numlock and convert them to
669 * system-specific mask values (i.e. ModMask).
672 static Accessibility_ControllerEventMask
673 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
675 Accessibility_ControllerEventMask tmp_mask;
676 gboolean has_numlock;
678 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
682 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
683 tmp_mask |= _numlock_physical_mask;
689 static DEControllerKeyListener *
690 spi_dec_key_listener_new (CORBA_Object l,
691 const Accessibility_KeySet *keys,
692 const Accessibility_ControllerEventMask mask,
693 const Accessibility_EventTypeSeq *typeseq,
694 const Accessibility_EventListenerMode *mode,
695 CORBA_Environment *ev)
697 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
698 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
699 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
700 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
701 key_listener->mask = spi_dec_translate_mask (mask);
702 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
704 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
706 key_listener->mode = NULL;
709 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
710 (unsigned int) key_listener->mask,
711 (int) (mode ? mode->global : 0),
712 (void *) key_listener->keys,
713 (int) (key_listener->keys ? key_listener->keys->_length : 0));
719 static DEControllerListener *
720 spi_dec_listener_new (CORBA_Object l,
721 const Accessibility_EventTypeSeq *typeseq,
722 CORBA_Environment *ev)
724 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
725 listener->object = bonobo_object_dup_ref (l, ev);
726 listener->type = SPI_DEVICE_TYPE_MOUSE;
727 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
731 static DEControllerListener *
732 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
734 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
736 CORBA_Object_duplicate (listener->object, ev);
737 clone->type = listener->type;
738 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
742 static DEControllerKeyListener *
743 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
745 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
746 clone->listener.object =
747 CORBA_Object_duplicate (key_listener->listener.object, ev);
748 clone->listener.type = SPI_DEVICE_TYPE_KBD;
749 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
750 clone->mask = key_listener->mask;
751 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
752 if (key_listener->mode)
753 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
760 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
762 CORBA_free (key_listener->listener.typeseq);
763 CORBA_free (key_listener->keys);
764 g_free (key_listener);
768 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
770 CORBA_Object_release (clone->listener.object, ev);
771 spi_key_listener_data_free (clone, ev);
775 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
777 CORBA_Object_release (clone->object, ev);
778 CORBA_free (clone->typeseq);
783 spi_dec_listener_free (DEControllerListener *listener,
784 CORBA_Environment *ev)
786 bonobo_object_release_unref (listener->object, ev);
787 if (listener->type == SPI_DEVICE_TYPE_KBD)
788 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
792 _register_keygrab (SpiDEController *controller,
793 DEControllerGrabMask *grab_mask)
797 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
798 spi_grab_mask_compare_values);
801 DEControllerGrabMask *cur_mask = l->data;
803 cur_mask->ref_count++;
804 if (cur_mask->pending_remove)
806 cur_mask->pending_remove = FALSE;
811 controller->keygrabs_list =
812 g_list_prepend (controller->keygrabs_list,
813 spi_grab_mask_clone (grab_mask));
818 _deregister_keygrab (SpiDEController *controller,
819 DEControllerGrabMask *grab_mask)
823 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
824 spi_grab_mask_compare_values);
828 DEControllerGrabMask *cur_mask = l->data;
830 cur_mask->ref_count--;
831 if (cur_mask->ref_count <= 0)
833 cur_mask->pending_remove = TRUE;
838 DBG (1, g_warning ("De-registering non-existant grab"));
843 handle_keygrab (SpiDEController *controller,
844 DEControllerKeyListener *key_listener,
845 void (*process_cb) (SpiDEController *controller,
846 DEControllerGrabMask *grab_mask))
848 DEControllerGrabMask grab_mask = { 0 };
850 grab_mask.mod_mask = key_listener->mask;
851 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
853 grab_mask.key_val = AnyKey;
855 fprintf (stderr, "AnyKey grab!");
857 process_cb (controller, &grab_mask);
863 for (i = 0; i < key_listener->keys->_length; ++i)
865 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
866 long int key_val = keydef.keysym;
867 /* X Grabs require keycodes, not keysyms */
868 if (keydef.keystring && keydef.keystring[0])
870 key_val = XStringToKeysym(keydef.keystring);
874 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
878 key_val = keydef.keycode;
880 grab_mask.key_val = key_val;
881 process_cb (controller, &grab_mask);
887 spi_controller_register_global_keygrabs (SpiDEController *controller,
888 DEControllerKeyListener *key_listener)
890 handle_keygrab (controller, key_listener, _register_keygrab);
891 if (controller->xevie_display == NULL)
892 return spi_controller_update_key_grabs (controller, NULL);
898 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
899 DEControllerKeyListener *key_listener)
901 handle_keygrab (controller, key_listener, _deregister_keygrab);
902 if (controller->xevie_display == NULL)
903 spi_controller_update_key_grabs (controller, NULL);
907 spi_controller_register_device_listener (SpiDEController *controller,
908 DEControllerListener *listener,
909 CORBA_Environment *ev)
911 DEControllerKeyListener *key_listener;
913 switch (listener->type) {
914 case SPI_DEVICE_TYPE_KBD:
915 key_listener = (DEControllerKeyListener *) listener;
917 controller->key_listeners = g_list_prepend (controller->key_listeners,
919 if (key_listener->mode->global)
921 return spi_controller_register_global_keygrabs (controller, key_listener);
926 case SPI_DEVICE_TYPE_MOUSE:
927 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
930 DBG (1, g_warning ("listener registration for unknown device type.\n"));
937 spi_controller_notify_mouselisteners (SpiDEController *controller,
938 const Accessibility_DeviceEvent *event,
939 CORBA_Environment *ev)
942 GSList *notify = NULL, *l2;
943 GList **listeners = &controller->mouse_listeners;
944 gboolean is_consumed;
945 #ifdef SPI_KEYEVENT_DEBUG
946 gboolean found = FALSE;
953 for (l = *listeners; l; l = l->next)
955 DEControllerListener *listener = l->data;
957 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
959 Accessibility_DeviceEventListener ls = listener->object;
961 if (ls != CORBA_OBJECT_NIL)
963 /* we clone (don't dup) the listener, to avoid refcount inc. */
964 notify = g_slist_prepend (notify,
965 spi_listener_clone (listener, ev));
966 #ifdef SPI_KEYEVENT_DEBUG
973 #ifdef SPI_KEYEVENT_DEBUG
976 g_print ("no match for event\n");
981 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
983 DEControllerListener *listener = l2->data;
984 Accessibility_DeviceEventListener ls = listener->object;
986 CORBA_exception_init (ev);
987 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
991 DBG (2, g_warning ("error notifying listener, removing it\n"));
992 spi_deregister_controller_device_listener (controller, listener,
994 CORBA_exception_free (ev);
997 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
1000 for (; l2; l2 = l2->next)
1002 DEControllerListener *listener = l2->data;
1003 spi_listener_clone_free (listener, ev);
1004 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1007 g_slist_free (notify);
1010 if (is_consumed) g_message ("consumed\n");
1016 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1019 Accessibility_Event e;
1020 Accessibility_DeviceEvent mouse_e;
1021 CORBA_Environment ev;
1022 gchar event_name[24];
1023 gboolean is_consumed = FALSE;
1024 gboolean xkb_mod_unlatch_occurred;
1025 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1027 int button = xbutton_event->button;
1029 unsigned int mouse_button_state = xbutton_event->state;
1034 mouse_button_state |= Button1Mask;
1037 mouse_button_state |= Button2Mask;
1040 mouse_button_state |= Button3Mask;
1043 mouse_button_state |= Button4Mask;
1046 mouse_button_state |= Button5Mask;
1050 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1051 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1054 fprintf (stderr, "mouse button %d %s (%x)\n",
1055 xbutton_event->button,
1056 (xevent->type == ButtonPress) ? "Press" : "Release",
1057 mouse_button_state);
1059 snprintf (event_name, 22, "mouse:button:%d%c", button,
1060 (xevent->type == ButtonPress) ? 'p' : 'r');
1062 /* TODO: FIXME distinguish between physical and logical buttons */
1063 mouse_e.type = (xevent->type == ButtonPress) ?
1064 Accessibility_BUTTON_PRESSED_EVENT :
1065 Accessibility_BUTTON_RELEASED_EVENT;
1066 mouse_e.id = button;
1067 mouse_e.hw_code = button;
1068 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
1069 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
1070 mouse_e.event_string = "";
1071 mouse_e.is_text = CORBA_FALSE;
1072 if ((mouse_button_state & mouse_button_mask) !=
1073 (mouse_mask_state & mouse_button_mask))
1075 if ((mouse_mask_state & key_modifier_mask) !=
1076 (mouse_button_state & key_modifier_mask))
1077 spi_dec_emit_modifier_event (controller,
1078 mouse_mask_state, mouse_button_state);
1079 mouse_mask_state = mouse_button_state;
1081 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
1082 e.type = CORBA_string_dup (event_name);
1083 e.source = BONOBO_OBJREF (controller->registry->desktop);
1084 e.detail1 = last_mouse_pos->x;
1085 e.detail2 = last_mouse_pos->y;
1086 spi_init_any_nil (&e.any_data,
1087 spi_accessible_new_return (atk_get_root (), FALSE, NULL),
1088 Accessibility_ROLE_UNKNOWN,
1090 CORBA_exception_init (&ev);
1092 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
1095 CORBA_free (e.any_data._value);
1098 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1099 xevent->type == ButtonRelease);
1101 /* if client wants to consume this event, and XKB latch state was
1102 * unset by this button event, we reset it
1104 if (is_consumed && xkb_mod_unlatch_occurred)
1105 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1107 XAllowEvents (spi_get_display (),
1108 (is_consumed) ? SyncPointer : ReplayPointer,
1112 static GdkFilterReturn
1113 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1115 XEvent *xevent = gdk_xevent;
1116 SpiDEController *controller;
1117 DEControllerPrivateData *priv;
1118 Display *display = spi_get_display ();
1119 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1120 priv = (DEControllerPrivateData *)
1121 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1123 if (xevent->type == MappingNotify)
1126 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1128 if (controller->xevie_display == NULL)
1130 gboolean is_consumed;
1133 spi_device_event_controller_forward_key_event (controller, xevent);
1140 n_events = XPending (display);
1142 #ifdef SPI_KEYEVENT_DEBUG
1143 g_print ("Number of events pending: %d\n", n_events);
1145 for (i = 0; i < n_events; i++)
1147 XNextEvent (display, &next_event);
1148 if (next_event.type != KeyPress &&
1149 next_event.type != KeyRelease)
1150 g_warning ("Unexpected event type %d in queue", next_event.type);
1153 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1155 XUngrabKeyboard (display, CurrentTime);
1159 if (xevent->type == KeyPress)
1160 wait_for_release_event (xevent, controller);
1161 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1165 return GDK_FILTER_CONTINUE;
1167 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1169 spi_device_event_controller_forward_mouse_event (controller, xevent);
1171 if (xevent->type == priv->xkb_base_event_code)
1173 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1174 /* ugly but probably necessary...*/
1175 XSynchronize (display, TRUE);
1177 if (xkb_ev->xkb_type == XkbStateNotify)
1179 XkbStateNotifyEvent *xkb_snev =
1180 (XkbStateNotifyEvent *) xkb_ev;
1181 /* check the mouse, to catch mouse events grabbed by
1182 * another client; in case we should revert this XKB delatch
1184 if (!priv->pending_xkb_mod_relatch_mask)
1188 spi_dec_mouse_check (controller, &x, &y, &moved);
1190 /* we check again, since the previous call may have
1191 changed this flag */
1192 if (priv->pending_xkb_mod_relatch_mask)
1194 unsigned int feedback_mask;
1195 #ifdef SPI_XKB_DEBUG
1196 fprintf (stderr, "relatching %x\n",
1197 priv->pending_xkb_mod_relatch_mask);
1199 /* temporarily turn off the latch bell, if it's on */
1200 XkbGetControls (display,
1201 XkbAccessXFeedbackMask,
1203 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1204 if (feedback_mask & XkbAX_StickyKeysFBMask)
1206 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1208 priv->xkb_desc->ctrls->ax_options
1209 &= ~(XkbAX_StickyKeysFBMask);
1210 XkbChangeControls (display, priv->xkb_desc, &changes);
1212 /* TODO: account for lock as well as latch */
1213 XkbLatchModifiers (display,
1215 priv->pending_xkb_mod_relatch_mask,
1216 priv->pending_xkb_mod_relatch_mask);
1217 if (feedback_mask & XkbAX_StickyKeysFBMask)
1219 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1221 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1222 XkbChangeControls (display, priv->xkb_desc, &changes);
1224 #ifdef SPI_XKB_DEBUG
1225 fprintf (stderr, "relatched %x\n",
1226 priv->pending_xkb_mod_relatch_mask);
1228 priv->pending_xkb_mod_relatch_mask = 0;
1232 priv->xkb_latch_mask = xkb_snev->latched_mods;
1236 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1237 XSynchronize (display, FALSE);
1240 return GDK_FILTER_CONTINUE;
1244 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1246 if (error->error_code == BadAccess)
1248 g_message ("Could not complete key grab: grab already in use.\n");
1249 spi_error_code = BadAccess;
1254 return (*x_default_error_handler) (display, error);
1259 spi_controller_register_with_devices (SpiDEController *controller)
1261 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1262 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1263 /* FIXME: should check for extension first! */
1264 XTestGrabControl (spi_get_display (), True);
1266 /* calls to device-specific implementations and routines go here */
1267 /* register with: keyboard hardware code handler */
1268 /* register with: (translated) keystroke handler */
1270 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1271 &priv->xkb_major_extension_opcode,
1272 &priv->xkb_base_event_code,
1273 &priv->xkb_base_error_code, NULL, NULL);
1277 guint64 reserved = 0;
1278 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1279 XkbSelectEvents (spi_get_display (),
1281 XkbStateNotifyMask, XkbStateNotifyMask);
1282 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1284 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1286 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1288 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1290 /* don't use this one if there's a grab client! */
1291 gdk_error_trap_push ();
1292 XGrabKey (spi_get_display (), i, 0,
1293 gdk_x11_get_default_root_xwindow (),
1295 GrabModeSync, GrabModeSync);
1296 XSync (spi_get_display (), TRUE);
1297 XUngrabKey (spi_get_display (), i, 0,
1298 gdk_x11_get_default_root_xwindow ());
1299 if (!gdk_error_trap_pop ())
1309 priv->reserved_keycode = reserved;
1310 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1314 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1315 priv->reserved_keysym = XK_numbersign;
1317 #ifdef SPI_RESERVED_DEBUG
1319 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1320 fprintf (stderr, "%x\n", sym);
1321 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1323 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1328 gdk_window_add_filter (NULL, global_filter_fn, controller);
1330 gdk_window_set_events (gdk_get_default_root_window (),
1331 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1333 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1337 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1338 const Accessibility_DeviceEvent *key_event)
1345 g_print ("null key set!");
1349 len = key_set->_length;
1351 if (len == 0) /* special case, means "all keys/any key" */
1353 g_print ("anykey\n");
1357 for (i = 0; i < len; ++i)
1359 #ifdef SPI_KEYEVENT_DEBUG
1360 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1362 (int)key_set->_buffer[i].keysym,
1363 (int) key_set->_buffer[i].keycode,
1364 (int) key_event->id,
1365 (int) key_event->hw_code,
1366 key_event->event_string);
1368 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1372 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1376 if (key_event->event_string && key_event->event_string[0] &&
1377 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1387 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1388 const Accessibility_DeviceEvent *event)
1396 g_print ("null type seq!");
1400 len = type_seq->_length;
1402 if (len == 0) /* special case, means "all events/any event" */
1407 for (i = 0; i < len; ++i)
1410 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1411 (int) type_seq->_buffer[i], (int) event->type);
1413 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1423 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1424 DEControllerKeyListener *listener,
1425 CORBA_boolean is_system_global)
1427 if (((key_event->modifiers & 0xFF) == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1428 spi_key_set_contains_key (listener->keys, key_event) &&
1429 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1430 (is_system_global == listener->mode->global))
1441 spi_controller_notify_keylisteners (SpiDEController *controller,
1442 Accessibility_DeviceEvent *key_event,
1443 CORBA_boolean is_system_global,
1444 CORBA_Environment *ev)
1447 GSList *notify = NULL, *l2;
1448 GList **key_listeners = &controller->key_listeners;
1449 gboolean is_consumed;
1456 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1457 if (key_event->modifiers & _numlock_physical_mask)
1458 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1460 for (l = *key_listeners; l; l = l->next)
1462 DEControllerKeyListener *key_listener = l->data;
1464 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1466 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1468 if (ls != CORBA_OBJECT_NIL)
1470 /* we clone (don't dup) the listener, to avoid refcount inc. */
1471 notify = g_slist_prepend (notify,
1472 spi_key_listener_clone (key_listener, ev));
1477 #ifdef SPI_KEYEVENT_DEBUG
1480 g_print ("no match for event\n");
1484 is_consumed = FALSE;
1485 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1487 DEControllerKeyListener *key_listener = l2->data;
1488 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1490 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev) &&
1491 key_listener->mode->preemptive;
1495 is_consumed = FALSE;
1496 spi_deregister_controller_key_listener (controller, key_listener,
1498 CORBA_exception_free (ev);
1501 spi_key_listener_clone_free (key_listener, ev);
1504 for (; l2; l2 = l2->next)
1506 DEControllerKeyListener *key_listener = l2->data;
1507 spi_key_listener_clone_free (key_listener, ev);
1508 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1511 g_slist_free (notify);
1514 if (is_consumed) g_message ("consumed\n");
1520 spi_clear_error_state (void)
1522 gboolean retval = spi_error_code != 0;
1527 static Accessibility_DeviceEvent
1528 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1530 Accessibility_DeviceEvent key_event;
1532 const int cbuf_bytes = 20;
1536 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1537 key_event.id = (CORBA_long)(keysym);
1538 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1539 if (((XEvent *) x_key_event)->type == KeyPress)
1541 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1545 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1547 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1548 key_event.is_text = CORBA_FALSE;
1552 key_event.event_string = CORBA_string_dup ("space");
1555 key_event.event_string = CORBA_string_dup ("Tab");
1558 key_event.event_string = CORBA_string_dup ("Backspace");
1561 key_event.event_string = CORBA_string_dup ("Return");
1564 key_event.event_string = CORBA_string_dup ("Home");
1567 key_event.event_string = CORBA_string_dup ("Page_Down");
1570 key_event.event_string = CORBA_string_dup ("Page_Up");
1573 key_event.event_string = CORBA_string_dup ("F1");
1576 key_event.event_string = CORBA_string_dup ("F2");
1579 key_event.event_string = CORBA_string_dup ("F3");
1582 key_event.event_string = CORBA_string_dup ("F4");
1585 key_event.event_string = CORBA_string_dup ("F5");
1588 key_event.event_string = CORBA_string_dup ("F6");
1591 key_event.event_string = CORBA_string_dup ("F7");
1594 key_event.event_string = CORBA_string_dup ("F8");
1597 key_event.event_string = CORBA_string_dup ("F9");
1600 key_event.event_string = CORBA_string_dup ("F10");
1603 key_event.event_string = CORBA_string_dup ("F11");
1606 key_event.event_string = CORBA_string_dup ("F12");
1609 key_event.event_string = CORBA_string_dup ("End");
1612 key_event.event_string = CORBA_string_dup ("Escape");
1615 key_event.event_string = CORBA_string_dup ("Up");
1618 key_event.event_string = CORBA_string_dup ("Down");
1621 key_event.event_string = CORBA_string_dup ("Left");
1624 key_event.event_string = CORBA_string_dup ("Right");
1630 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1631 key_event.event_string = CORBA_string_dup (cbuf);
1632 c = keysym2ucs (keysym);
1633 if (c > 0 && !g_unichar_iscntrl (c))
1635 key_event.is_text = CORBA_TRUE;
1636 /* incorrect for some composed chars? */
1641 key_event.event_string = CORBA_string_dup ("");
1645 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1646 #ifdef SPI_KEYEVENT_DEBUG
1648 char *pressed_str = "pressed";
1649 char *released_str = "released";
1652 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1653 state_ptr = pressed_str;
1655 state_ptr = released_str;
1658 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1659 (unsigned long) keysym,
1661 keysym ? (int) keysym : '*',
1662 (int) x_key_event->state,
1663 key_event.event_string,
1664 key_event.event_string[0],
1665 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1669 fprintf (stderr, "%s%c\n",
1670 (x_key_event->state & Mod1Mask)?"Alt-":"",
1671 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1672 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1673 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1674 #endif /* SPI_DEBUG */
1679 spi_controller_update_key_grabs (SpiDEController *controller,
1680 Accessibility_DeviceEvent *recv)
1683 gboolean update_failed = FALSE;
1684 KeyCode keycode = 0;
1686 g_return_val_if_fail (controller != NULL, FALSE);
1689 * masks known to work with default RH 7.1+:
1690 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1691 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1692 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1693 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1695 * ControlMask grabs are broken, must be in use already
1698 keycode = keycode_for_keysym (controller, recv->id, NULL);
1699 for (l = controller->keygrabs_list; l; l = next)
1702 gboolean re_issue_grab;
1703 DEControllerGrabMask *grab_mask = l->data;
1707 re_issue_grab = recv &&
1708 (recv->modifiers & grab_mask->mod_mask) &&
1709 (grab_mask->key_val == keycode);
1712 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1713 (long int) grab_mask->key_val,
1714 (long int) grab_mask->mod_mask,
1715 grab_mask->pending_add ? '+' : '.',
1716 grab_mask->pending_remove ? '-' : '.',
1717 re_issue_grab ? "re-issue": "");
1722 if (grab_mask->pending_add && grab_mask->pending_remove)
1726 else if (grab_mask->pending_remove)
1729 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1731 XUngrabKey (spi_get_display (),
1733 grab_mask->mod_mask,
1734 gdk_x11_get_default_root_xwindow ());
1738 else if (grab_mask->pending_add || re_issue_grab)
1742 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1744 XGrabKey (spi_get_display (),
1746 grab_mask->mod_mask,
1747 gdk_x11_get_default_root_xwindow (),
1751 XSync (spi_get_display (), False);
1752 update_failed = spi_clear_error_state ();
1753 if (update_failed) {
1754 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1759 grab_mask->pending_add = FALSE;
1760 grab_mask->pending_remove = FALSE;
1764 g_assert (grab_mask->ref_count <= 0);
1766 controller->keygrabs_list = g_list_delete_link (
1767 controller->keygrabs_list, l);
1769 spi_grab_mask_free (grab_mask);
1774 return ! update_failed;
1778 * Implemented GObject::finalize
1781 spi_device_event_controller_object_finalize (GObject *object)
1783 SpiDEController *controller;
1784 DEControllerPrivateData *private;
1785 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1788 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1790 /* disconnect any special listeners, get rid of outstanding keygrabs */
1791 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1794 if (controller->xevie_display != NULL)
1796 XevieEnd(controller->xevie_display);
1797 #ifdef SPI_KEYEVENT_DEBUG
1798 printf("XevieEnd(dpy) finished \n");
1803 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1804 if (private->xkb_desc)
1805 XkbFreeKeyboard (private->xkb_desc, 0, True);
1807 spi_device_event_controller_parent_class->finalize (object);
1811 * CORBA Accessibility::DEController::registerKeystrokeListener
1812 * method implementation
1814 static CORBA_boolean
1815 impl_register_keystroke_listener (PortableServer_Servant servant,
1816 const Accessibility_DeviceEventListener l,
1817 const Accessibility_KeySet *keys,
1818 const Accessibility_ControllerEventMask mask,
1819 const Accessibility_EventTypeSeq *type,
1820 const Accessibility_EventListenerMode *mode,
1821 CORBA_Environment *ev)
1823 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1824 bonobo_object_from_servant (servant));
1825 DEControllerKeyListener *dec_listener;
1827 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1828 (void *) l, (unsigned long) mask);
1830 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1831 return spi_controller_register_device_listener (
1832 controller, (DEControllerListener *) dec_listener, ev);
1837 * CORBA Accessibility::DEController::registerDeviceEventListener
1838 * method implementation
1840 static CORBA_boolean
1841 impl_register_device_listener (PortableServer_Servant servant,
1842 const Accessibility_DeviceEventListener l,
1843 const Accessibility_EventTypeSeq *event_types,
1844 CORBA_Environment *ev)
1846 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1847 bonobo_object_from_servant (servant));
1848 DEControllerListener *dec_listener;
1850 dec_listener = spi_dec_listener_new (l, event_types, ev);
1851 return spi_controller_register_device_listener (
1852 controller, (DEControllerListener *) dec_listener, ev);
1856 CORBA_Environment *ev;
1857 DEControllerListener *listener;
1858 } RemoveListenerClosure;
1860 static SpiReEntrantContinue
1861 remove_listener_cb (GList * const *list,
1864 DEControllerListener *listener = (*list)->data;
1865 RemoveListenerClosure *ctx = user_data;
1867 if (CORBA_Object_is_equivalent (ctx->listener->object,
1868 listener->object, ctx->ev))
1870 spi_re_entrant_list_delete_link (list);
1871 spi_dec_listener_free (listener, ctx->ev);
1874 return SPI_RE_ENTRANT_CONTINUE;
1877 static SpiReEntrantContinue
1878 copy_key_listener_cb (GList * const *list,
1881 DEControllerKeyListener *key_listener = (*list)->data;
1882 RemoveListenerClosure *ctx = user_data;
1884 if (CORBA_Object_is_equivalent (ctx->listener->object,
1885 key_listener->listener.object, ctx->ev))
1887 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1888 DEControllerKeyListener *ctx_key_listener =
1889 (DEControllerKeyListener *) ctx->listener;
1890 CORBA_free (ctx_key_listener->keys);
1891 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1894 return SPI_RE_ENTRANT_CONTINUE;
1898 spi_deregister_controller_device_listener (SpiDEController *controller,
1899 DEControllerListener *listener,
1900 CORBA_Environment *ev)
1902 RemoveListenerClosure ctx;
1905 ctx.listener = listener;
1907 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1908 remove_listener_cb, &ctx);
1912 spi_deregister_controller_key_listener (SpiDEController *controller,
1913 DEControllerKeyListener *key_listener,
1914 CORBA_Environment *ev)
1916 RemoveListenerClosure ctx;
1919 ctx.listener = (DEControllerListener *) key_listener;
1921 /* special case, copy keyset from existing controller list entry */
1922 if (key_listener->keys->_length == 0)
1924 spi_re_entrant_list_foreach (&controller->key_listeners,
1925 copy_key_listener_cb, &ctx);
1928 spi_controller_deregister_global_keygrabs (controller, key_listener);
1930 spi_re_entrant_list_foreach (&controller->key_listeners,
1931 remove_listener_cb, &ctx);
1936 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1937 * method implementation
1940 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1941 const Accessibility_DeviceEventListener l,
1942 const Accessibility_KeySet *keys,
1943 const Accessibility_ControllerEventMask mask,
1944 const Accessibility_EventTypeSeq *type,
1945 CORBA_Environment *ev)
1947 DEControllerKeyListener *key_listener;
1948 SpiDEController *controller;
1950 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1952 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1954 #ifdef SPI_DEREGISTER_DEBUG
1955 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1956 (void *) l, (unsigned long) mask->value);
1959 spi_deregister_controller_key_listener (controller, key_listener, ev);
1961 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1965 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1966 * method implementation
1969 impl_deregister_device_listener (PortableServer_Servant servant,
1970 const Accessibility_DeviceEventListener l,
1971 const Accessibility_EventTypeSeq *event_types,
1972 CORBA_Environment *ev)
1974 SpiDEController *controller;
1975 DEControllerListener *listener =
1976 spi_dec_listener_new (l, event_types, ev);
1978 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1980 spi_deregister_controller_device_listener (controller, listener, ev);
1982 spi_dec_listener_free (listener, ev);
1985 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1987 unsigned int retval = 0;
1988 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1989 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1991 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1992 retval = XkbGetSlowKeysDelay (spi_get_display (),
1993 XkbUseCoreKbd, &bounce_delay);
1995 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1997 Status s = XkbGetControls (spi_get_display (),
1998 XkbAllControlsMask, priv->xkb_desc);
2001 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2002 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2007 #ifdef SPI_XKB_DEBUG
2008 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2013 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2015 unsigned int retval = 0;
2016 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2017 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2019 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2020 retval = XkbGetBounceKeysDelay (spi_get_display (),
2021 XkbUseCoreKbd, &bounce_delay);
2023 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2025 Status s = XkbGetControls (spi_get_display (),
2026 XkbAllControlsMask, priv->xkb_desc);
2029 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2030 retval = priv->xkb_desc->ctrls->debounce_delay;
2035 #ifdef SPI_XKB_DEBUG
2036 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2042 dec_synth_keycode_press (SpiDEController *controller,
2043 unsigned int keycode)
2045 unsigned int time = CurrentTime;
2046 unsigned int bounce_delay;
2047 unsigned int elapsed_msec;
2049 DEControllerPrivateData *priv =
2050 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2051 spi_dec_private_quark);
2052 if (keycode == priv->last_release_keycode)
2054 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2057 gettimeofday (&tv, NULL);
2059 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2060 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2061 #ifdef SPI_XKB_DEBUG
2062 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2063 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2065 #ifdef THIS_IS_BROKEN
2066 if (elapsed_msec < bounce_delay)
2067 time = bounce_delay - elapsed_msec + 1;
2069 time = bounce_delay + 10;
2070 /* fudge for broken XTest */
2072 #ifdef SPI_XKB_DEBUG
2073 fprintf (stderr, "waiting %d ms\n", time);
2077 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2078 priv->last_press_keycode = keycode;
2079 XFlush (spi_get_display ());
2080 XSync (spi_get_display (), False);
2081 gettimeofday (&priv->last_press_time, NULL);
2086 dec_synth_keycode_release (SpiDEController *controller,
2087 unsigned int keycode)
2089 unsigned int time = CurrentTime;
2090 unsigned int slow_delay;
2091 unsigned int elapsed_msec;
2093 DEControllerPrivateData *priv =
2094 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2095 spi_dec_private_quark);
2096 if (keycode == priv->last_press_keycode)
2098 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2101 gettimeofday (&tv, NULL);
2103 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2104 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2105 #ifdef SPI_XKB_DEBUG
2106 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2107 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2109 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2110 if (elapsed_msec < slow_delay)
2111 time = slow_delay - elapsed_msec + 1;
2113 time = slow_delay + 10;
2114 /* our XTest seems broken, we have to add slop as above */
2116 #ifdef SPI_XKB_DEBUG
2117 fprintf (stderr, "waiting %d ms\n", time);
2121 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2122 priv->last_release_keycode = keycode;
2123 XSync (spi_get_display (), False);
2124 gettimeofday (&priv->last_release_time, NULL);
2129 dec_get_modifier_state (SpiDEController *controller)
2131 return mouse_mask_state;
2135 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2137 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2138 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2140 if (priv->have_xkb) {
2141 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2142 modifiers, modifiers);
2145 for (mod_index=0;mod_index<8;mod_index++)
2146 if (modifiers & (1<<mod_index))
2147 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2153 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2155 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2156 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2158 if (priv->have_xkb) {
2159 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2163 for (mod_index=0;mod_index<8;mod_index++)
2164 if (modifiers & (1<<mod_index))
2165 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2171 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2173 return ucs2keysym ((long) unichar);
2177 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2179 KeyCode key_synth_code;
2180 unsigned int modifiers, synth_mods, lock_mods;
2182 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2184 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2186 /* TODO: set the modifiers accordingly! */
2187 modifiers = dec_get_modifier_state (controller);
2188 /* side-effect; we may unset mousebutton modifiers here! */
2191 if (synth_mods != modifiers) {
2192 lock_mods = synth_mods & ~modifiers;
2193 dec_lock_modifiers (controller, lock_mods);
2195 dec_synth_keycode_press (controller, key_synth_code);
2196 dec_synth_keycode_release (controller, key_synth_code);
2198 if (synth_mods != modifiers)
2199 dec_unlock_modifiers (controller, lock_mods);
2205 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
2207 /* probably we need to create and inject an XIM handler eventually. */
2208 /* for now, try to match the string to existing
2209 * keycode+modifier states.
2213 gunichar unichar = 0;
2215 gboolean retval = TRUE;
2218 maxlen = strlen (keystring);
2219 keysyms = g_new0 (KeySym, maxlen);
2220 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2225 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2227 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2232 mbytes = g_unichar_to_utf8 (unichar, bytes);
2233 bytes[mbytes] = '\0';
2235 fprintf (stderr, "[unichar %s]", bytes);
2237 keysym = dec_keysym_for_unichar (controller, unichar);
2238 if (keysym == NoSymbol) {
2240 fprintf (stderr, "no keysym for %s", bytes);
2245 keysyms[i++] = keysym;
2246 keystring = g_utf8_next_char (keystring);
2249 XSynchronize (spi_get_display (), TRUE);
2250 for (i = 0; keysyms[i]; ++i) {
2251 if (!dec_synth_keysym (controller, keysyms[i])) {
2253 fprintf (stderr, "could not synthesize %c\n",
2260 XSynchronize (spi_get_display (), FALSE);
2269 * CORBA Accessibility::DEController::registerKeystrokeListener
2270 * method implementation
2273 impl_generate_keyboard_event (PortableServer_Servant servant,
2274 const CORBA_long keycode,
2275 const CORBA_char *keystring,
2276 const Accessibility_KeySynthType synth_type,
2277 CORBA_Environment *ev)
2279 SpiDEController *controller =
2280 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2283 DEControllerPrivateData *priv;
2286 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2287 (long) keycode, (int) synth_type);
2289 /* TODO: hide/wrap/remove X dependency */
2292 * TODO: when initializing, query for XTest extension before using,
2293 * and fall back to XSendEvent() if XTest is not available.
2296 gdk_error_trap_push ();
2298 priv = (DEControllerPrivateData *)
2299 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2301 if (!priv->have_xkb && xmkeymap==NULL) {
2302 xmkeymap = XGetModifierMapping(spi_get_display ());
2307 case Accessibility_KEY_PRESS:
2308 dec_synth_keycode_press (controller, keycode);
2310 case Accessibility_KEY_PRESSRELEASE:
2311 dec_synth_keycode_press (controller, keycode);
2312 case Accessibility_KEY_RELEASE:
2313 dec_synth_keycode_release (controller, keycode);
2315 case Accessibility_KEY_SYM:
2316 #ifdef SPI_XKB_DEBUG
2317 fprintf (stderr, "KeySym synthesis\n");
2320 * note: we are using long for 'keycode'
2321 * in our arg list; it can contain either
2322 * a keycode or a keysym.
2324 dec_synth_keysym (controller, (KeySym) keycode);
2326 case Accessibility_KEY_STRING:
2327 if (!dec_synth_keystring (controller, keystring))
2328 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2332 if ((err = gdk_error_trap_pop ()))
2334 DBG (-1, g_warning ("Error [%d] emitting keystroke", err));
2336 if (synth_type == Accessibility_KEY_SYM) {
2340 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2342 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2344 spi_dec_clear_unlatch_pending (controller);
2348 /* Accessibility::DEController::generateMouseEvent */
2350 impl_generate_mouse_event (PortableServer_Servant servant,
2353 const CORBA_char *eventName,
2354 CORBA_Environment *ev)
2357 gboolean error = FALSE;
2358 Display *display = spi_get_display ();
2360 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2361 eventName, (long int) x, (long int) y);
2363 switch (eventName[0])
2366 switch (eventName[1])
2368 /* TODO: check number of buttons before parsing */
2389 if (x != -1 && y != -1)
2391 XTestFakeMotionEvent (display, DefaultScreen (display),
2394 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2395 if (eventName[2] == 'c')
2396 XTestFakeButtonEvent (display, button, FALSE, 1);
2397 else if (eventName[2] == 'd')
2399 XTestFakeButtonEvent (display, button, FALSE, 1);
2400 XTestFakeButtonEvent (display, button, TRUE, 2);
2401 XTestFakeButtonEvent (display, button, FALSE, 3);
2405 case 'r': /* relative motion */
2406 XTestFakeRelativeMotionEvent (display, x, y, 0);
2408 case 'a': /* absolute motion */
2409 XTestFakeMotionEvent (display, DefaultScreen (display),
2415 /* Accessibility::DEController::notifyListenersSync */
2416 static CORBA_boolean
2417 impl_notify_listeners_sync (PortableServer_Servant servant,
2418 const Accessibility_DeviceEvent *event,
2419 CORBA_Environment *ev)
2421 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2422 bonobo_object_from_servant (servant));
2424 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2425 controller, (int) event->id);
2427 return spi_controller_notify_keylisteners (controller,
2428 (Accessibility_DeviceEvent *)
2429 event, CORBA_FALSE, ev) ?
2430 CORBA_TRUE : CORBA_FALSE;
2433 /* Accessibility::DEController::notifyListenersAsync */
2435 impl_notify_listeners_async (PortableServer_Servant servant,
2436 const Accessibility_DeviceEvent *event,
2437 CORBA_Environment *ev)
2439 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2440 bonobo_object_from_servant (servant));
2442 fprintf (stderr, "notifying listeners asynchronously\n");
2444 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2445 event, CORBA_FALSE, ev);
2449 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2451 GObjectClass * object_class = (GObjectClass *) klass;
2452 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2454 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2456 object_class->finalize = spi_device_event_controller_object_finalize;
2458 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2459 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2460 epv->registerDeviceEventListener = impl_register_device_listener;
2461 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2462 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2463 epv->generateMouseEvent = impl_generate_mouse_event;
2464 epv->notifyListenersSync = impl_notify_listeners_sync;
2465 epv->notifyListenersAsync = impl_notify_listeners_async;
2467 if (!spi_dec_private_quark)
2468 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2472 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2478 handle_io (GIOChannel *source,
2479 GIOCondition condition,
2482 SpiDEController *controller = (SpiDEController *) data;
2483 gboolean is_consumed = FALSE;
2486 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2488 if (ev.type == KeyPress || ev.type == KeyRelease)
2489 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2492 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2497 #endif /* HAVE_XEVIE */
2500 spi_device_event_controller_init (SpiDEController *device_event_controller)
2505 #endif /* HAVE_XEVIE */
2507 DEControllerPrivateData *private;
2508 device_event_controller->key_listeners = NULL;
2509 device_event_controller->mouse_listeners = NULL;
2510 device_event_controller->keygrabs_list = NULL;
2511 device_event_controller->xevie_display = NULL;
2514 device_event_controller->xevie_display = XOpenDisplay(NULL);
2516 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2518 #ifdef SPI_KEYEVENT_DEBUG
2519 fprintf (stderr, "XevieStart() success \n");
2521 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2523 fd = ConnectionNumber(device_event_controller->xevie_display);
2524 ioc = g_io_channel_unix_new (fd);
2525 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2526 g_io_channel_unref (ioc);
2530 device_event_controller->xevie_display = NULL;
2531 #ifdef SPI_KEYEVENT_DEBUG
2532 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2535 #endif /* HAVE_XEVIE */
2537 private = g_new0 (DEControllerPrivateData, 1);
2538 gettimeofday (&private->last_press_time, NULL);
2539 gettimeofday (&private->last_release_time, NULL);
2540 g_object_set_qdata (G_OBJECT (device_event_controller),
2541 spi_dec_private_quark,
2543 spi_controller_register_with_devices (device_event_controller);
2547 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2548 const XEvent *event)
2550 CORBA_Environment ev;
2551 Accessibility_DeviceEvent key_event;
2554 g_assert (event->type == KeyPress || event->type == KeyRelease);
2556 CORBA_exception_init (&ev);
2558 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2560 if (controller->xevie_display == NULL)
2561 spi_controller_update_key_grabs (controller, &key_event);
2563 /* relay to listeners, and decide whether to consume it or not */
2564 ret = spi_controller_notify_keylisteners (controller, &key_event, CORBA_TRUE, &ev);
2565 CORBA_free(key_event.event_string);
2570 spi_device_event_controller_new (SpiRegistry *registry)
2572 SpiDEController *retval = g_object_new (
2573 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2575 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2576 BONOBO_OBJECT (registry)));
2578 spi_dec_init_mouse_listener (registry);
2579 /* TODO: kill mouse listener on finalize */
2584 is_key_released (KeyCode code)
2589 XQueryKeymap (spi_get_display (), keys);
2590 down = BIT (keys, code);
2595 check_release (gpointer data)
2598 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2599 KeyCode code = event->hw_code;
2600 CORBA_Environment ev;
2602 released = is_key_released (code);
2606 check_release_handler = 0;
2607 event->type = Accessibility_KEY_RELEASED_EVENT;
2608 ev._major = CORBA_NO_EXCEPTION;
2609 spi_controller_notify_keylisteners (saved_controller, event, CORBA_TRUE, &ev);
2611 return (released == 0);
2614 static void wait_for_release_event (XEvent *event,
2615 SpiDEController *controller)
2617 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2618 saved_controller = controller;
2619 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2622 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2623 Accessibility_DeviceEventController,
2625 spi_device_event_controller)