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>
42 #include <X11/keysymdef.h>
45 #include <X11/Xproto.h>
47 #include <X11/extensions/Xevie.h>
48 #endif /* HAVE_XEVIE */
51 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
52 #include <gdk/gdkkeysyms.h>
53 #include <gdk/gdkwindow.h>
55 #include "../libspi/spi-private.h"
56 #include "deviceeventcontroller.h"
58 KeySym ucs2keysym (long ucs);
60 #define CHECK_RELEASE_DELAY 20
61 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
62 static guint check_release_handler = 0;
63 static Accessibility_DeviceEvent pressed_event;
64 static SpiDEController *saved_controller;
65 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
67 /* Our parent Gtk object type */
68 #define PARENT_TYPE BONOBO_TYPE_OBJECT
70 /* A pointer to our parent object class */
71 static GObjectClass *spi_device_event_controller_parent_class;
72 static int spi_error_code = 0;
73 static GdkPoint last_mouse_pos_static = {0, 0};
74 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
75 static unsigned int mouse_mask_state = 0;
76 static unsigned int mouse_button_mask =
77 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
78 static unsigned int key_modifier_mask =
79 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
80 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
82 static GQuark spi_dec_private_quark = 0;
84 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
88 SPI_DEVICE_TYPE_MOUSE,
89 SPI_DEVICE_TYPE_LAST_DEFINED
90 } SpiDeviceTypeCategory;
94 guint pending_add : 1;
95 guint pending_remove : 1;
97 Accessibility_ControllerEventMask mod_mask;
98 CORBA_unsigned_long key_val; /* KeyCode */
99 } DEControllerGrabMask;
103 SpiDeviceTypeCategory type;
104 Accessibility_EventTypeSeq *typeseq;
105 } DEControllerListener;
108 DEControllerListener listener;
110 Accessibility_KeySet *keys;
111 Accessibility_ControllerEventMask mask;
112 Accessibility_EventListenerMode *mode;
113 } DEControllerKeyListener;
116 unsigned int last_press_keycode;
117 unsigned int last_release_keycode;
118 struct timeval last_press_time;
119 struct timeval last_release_time;
121 int xkb_major_extension_opcode;
122 int xkb_base_event_code;
123 int xkb_base_error_code;
124 unsigned int xkb_latch_mask;
125 unsigned int pending_xkb_mod_relatch_mask;
127 } DEControllerPrivateData;
129 static void spi_controller_register_with_devices (SpiDEController *controller);
130 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
131 Accessibility_DeviceEvent *recv);
132 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
133 DEControllerListener *l,
134 CORBA_Environment *ev);
135 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
136 const XEvent *event);
137 static void spi_deregister_controller_device_listener (SpiDEController *controller,
138 DEControllerListener *listener,
139 CORBA_Environment *ev);
140 static void spi_deregister_controller_key_listener (SpiDEController *controller,
141 DEControllerKeyListener *key_listener,
142 CORBA_Environment *ev);
143 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
144 const Accessibility_DeviceEvent *event,
145 CORBA_Environment *ev);
147 static gboolean spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
148 const Accessibility_DeviceEvent *event);
149 static gboolean spi_clear_error_state (void);
150 static gboolean spi_dec_poll_mouse_moved (gpointer data);
151 static gboolean spi_dec_poll_mouse_moving (gpointer data);
152 static gboolean spi_dec_poll_mouse_idle (gpointer data);
154 #define spi_get_display() GDK_DISPLAY()
156 /* Private methods */
159 keysym_mod_mask (KeySym keysym, KeyCode keycode)
161 /* we really should use XKB and look directly at the keymap */
162 /* this is very inelegant */
163 Display *display = spi_get_display ();
164 unsigned int mods_rtn = 0;
165 unsigned int retval = 0;
168 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
169 (sym_rtn == keysym)) {
172 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
173 (sym_rtn == keysym)) {
176 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
177 (sym_rtn == keysym)) {
180 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
181 (sym_rtn == keysym)) {
184 else if (XkbLookupKeySym (display, keycode,
185 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
186 (sym_rtn == keysym)) {
187 retval = (Mod2Mask | ShiftMask);
189 else if (XkbLookupKeySym (display, keycode,
190 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
191 (sym_rtn == keysym)) {
192 retval = (Mod3Mask | ShiftMask);
194 else if (XkbLookupKeySym (display, keycode,
195 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
196 (sym_rtn == keysym)) {
197 retval = (Mod4Mask | ShiftMask);
205 keycode_for_keysym (long keysym, unsigned int *modmask)
208 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
210 *modmask = keysym_mod_mask (keysym, keycode);
214 static DEControllerGrabMask *
215 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
217 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
219 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
221 clone->ref_count = 1;
222 clone->pending_add = TRUE;
223 clone->pending_remove = FALSE;
229 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
235 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
237 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
238 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
246 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
251 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
253 DEControllerPrivateData *priv =
254 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
256 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
257 priv->xkb_latch_mask);
259 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
263 spi_dec_clear_unlatch_pending (SpiDEController *controller)
265 DEControllerPrivateData *priv =
266 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
267 priv->xkb_latch_mask = 0;
271 spi_dec_button_update_and_emit (SpiDEController *controller,
274 CORBA_Environment ev;
275 Accessibility_Event e;
276 Accessibility_DeviceEvent mouse_e;
277 gchar event_name[24];
278 gboolean is_consumed = FALSE;
280 if ((mask_return & mouse_button_mask) !=
281 (mouse_mask_state & mouse_button_mask))
283 int button_number = 0;
284 gboolean is_down = False;
286 if (!(mask_return & Button1Mask) &&
287 (mouse_mask_state & Button1Mask))
289 mouse_mask_state &= ~Button1Mask;
292 else if ((mask_return & Button1Mask) &&
293 !(mouse_mask_state & Button1Mask))
295 mouse_mask_state |= Button1Mask;
299 else if (!(mask_return & Button2Mask) &&
300 (mouse_mask_state & Button2Mask))
302 mouse_mask_state &= ~Button2Mask;
305 else if ((mask_return & Button2Mask) &&
306 !(mouse_mask_state & Button2Mask))
308 mouse_mask_state |= Button2Mask;
312 else if (!(mask_return & Button3Mask) &&
313 (mouse_mask_state & Button3Mask))
315 mouse_mask_state &= ~Button3Mask;
318 else if ((mask_return & Button3Mask) &&
319 !(mouse_mask_state & Button3Mask))
321 mouse_mask_state |= Button3Mask;
325 else if (!(mask_return & Button4Mask) &&
326 (mouse_mask_state & Button4Mask))
328 mouse_mask_state &= ~Button4Mask;
331 else if ((mask_return & Button4Mask) &&
332 !(mouse_mask_state & Button4Mask))
334 mouse_mask_state |= Button4Mask;
338 else if (!(mask_return & Button5Mask) &&
339 (mouse_mask_state & Button5Mask))
341 mouse_mask_state &= ~Button5Mask;
344 else if ((mask_return & Button5Mask) &&
345 !(mouse_mask_state & Button5Mask))
347 mouse_mask_state |= Button5Mask;
353 fprintf (stderr, "Button %d %s\n",
354 button_number, (is_down) ? "Pressed" : "Released");
356 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
357 (is_down) ? 'p' : 'r');
358 /* TODO: FIXME distinguish between physical and
361 mouse_e.type = (is_down) ?
362 Accessibility_BUTTON_PRESSED_EVENT :
363 Accessibility_BUTTON_RELEASED_EVENT;
364 mouse_e.id = button_number;
365 mouse_e.hw_code = button_number;
366 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
367 mouse_e.timestamp = 0;
368 mouse_e.event_string = "";
369 mouse_e.is_text = CORBA_FALSE;
371 spi_controller_notify_mouselisteners (controller,
375 e.source = BONOBO_OBJREF (controller->registry->desktop);
376 e.detail1 = last_mouse_pos->x;
377 e.detail2 = last_mouse_pos->y;
378 spi_init_any_nil (&e.any_data);
379 CORBA_exception_init (&ev);
382 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
387 spi_dec_set_unlatch_pending (controller, mask_return);
399 spi_dec_mouse_check (SpiDEController *controller,
400 int *x, int *y, gboolean *moved)
402 Accessibility_Event e;
403 CORBA_Environment ev;
404 int win_x_return,win_y_return;
405 unsigned int mask_return;
406 Window root_return, child_return;
407 Display *display = spi_get_display ();
410 XQueryPointer(display, DefaultRootWindow (display),
411 &root_return, &child_return,
413 &win_x_return, &win_y_return, &mask_return);
415 * Since many clients grab the pointer, and X goes an automatic
416 * pointer grab on mouse-down, we often must detect mouse button events
417 * by polling rather than via a button grab.
418 * The while loop (rather than if) is used since it's possible that
419 * multiple buttons have changed state since we last checked.
421 if (mask_return != mouse_mask_state)
423 while (spi_dec_button_update_and_emit (controller, mask_return));
426 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
428 e.type = "mouse:abs";
429 e.source = BONOBO_OBJREF (controller->registry->desktop);
432 spi_init_any_nil (&e.any_data);
433 CORBA_exception_init (&ev);
434 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
437 e.type = "mouse:rel";
438 e.source = BONOBO_OBJREF (controller->registry->desktop);
439 e.detail1 = *x - last_mouse_pos->x;
440 e.detail2 = *y - last_mouse_pos->y;
441 spi_init_any_nil (&e.any_data);
442 CORBA_exception_init (&ev);
443 last_mouse_pos->x = *x;
444 last_mouse_pos->y = *y;
445 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
459 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
462 Accessibility_Event e;
463 CORBA_Environment ev;
466 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
467 prev_mask, current_mask);
470 /* set bits for the virtual modifiers like NUMLOCK */
471 if (prev_mask & _numlock_physical_mask)
472 prev_mask |= SPI_KEYMASK_NUMLOCK;
473 if (current_mask & _numlock_physical_mask)
474 current_mask |= SPI_KEYMASK_NUMLOCK;
476 e.type = "keyboard:modifiers";
477 e.source = BONOBO_OBJREF (controller->registry->desktop);
478 e.detail1 = prev_mask & key_modifier_mask;
479 e.detail2 = current_mask & key_modifier_mask;
480 spi_init_any_nil (&e.any_data);
481 CORBA_exception_init (&ev);
482 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
488 spi_dec_poll_mouse_moved (gpointer data)
490 SpiRegistry *registry = SPI_REGISTRY (data);
491 SpiDEController *controller = registry->de_controller;
496 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
498 if ((mask_return & key_modifier_mask) !=
499 (mouse_mask_state & key_modifier_mask))
501 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
502 mouse_mask_state = mask_return;
509 spi_dec_poll_mouse_idle (gpointer data)
511 if (! spi_dec_poll_mouse_moved (data))
515 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
521 spi_dec_poll_mouse_moving (gpointer data)
523 if (spi_dec_poll_mouse_moved (data))
527 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
532 #ifdef WE_NEED_UGRAB_MOUSE
534 spi_dec_ungrab_mouse (gpointer data)
536 Display *display = spi_get_display ();
539 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
540 XDefaultRootWindow (spi_get_display ()));
547 spi_dec_init_mouse_listener (SpiRegistry *registry)
549 Display *display = spi_get_display ();
550 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
554 if (XGrabButton (display, AnyButton, AnyModifier,
555 gdk_x11_get_default_root_xwindow (),
556 True, ButtonPressMask | ButtonReleaseMask,
557 GrabModeSync, GrabModeAsync, None, None) != Success) {
559 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
563 XSync (display, False);
565 fprintf (stderr, "mouse buttons grabbed\n");
571 * Eventually we can use this to make the marshalling of mask types
572 * more sane, but for now we just use this to detect
573 * the use of 'virtual' masks such as numlock and convert them to
574 * system-specific mask values (i.e. ModMask).
577 static Accessibility_ControllerEventMask
578 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
580 Accessibility_ControllerEventMask tmp_mask;
581 gboolean has_numlock;
583 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
587 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
588 tmp_mask |= _numlock_physical_mask;
594 static DEControllerKeyListener *
595 spi_dec_key_listener_new (CORBA_Object l,
596 const Accessibility_KeySet *keys,
597 const Accessibility_ControllerEventMask mask,
598 const Accessibility_EventTypeSeq *typeseq,
599 const Accessibility_EventListenerMode *mode,
600 CORBA_Environment *ev)
602 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
603 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
604 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
605 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
606 key_listener->mask = spi_dec_translate_mask (mask);
607 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
609 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
611 key_listener->mode = NULL;
614 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
615 (unsigned int) key_listener->mask,
616 (int) (mode ? mode->global : 0),
617 (void *) key_listener->keys,
618 (int) (key_listener->keys ? key_listener->keys->_length : 0));
624 static DEControllerListener *
625 spi_dec_listener_new (CORBA_Object l,
626 const Accessibility_EventTypeSeq *typeseq,
627 CORBA_Environment *ev)
629 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
630 listener->object = bonobo_object_dup_ref (l, ev);
631 listener->type = SPI_DEVICE_TYPE_MOUSE;
632 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
636 static DEControllerListener *
637 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
639 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
641 CORBA_Object_duplicate (listener->object, ev);
642 clone->type = listener->type;
643 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
647 static DEControllerKeyListener *
648 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
650 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
651 clone->listener.object =
652 CORBA_Object_duplicate (key_listener->listener.object, ev);
653 clone->listener.type = SPI_DEVICE_TYPE_KBD;
654 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
655 clone->mask = key_listener->mask;
656 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
657 if (key_listener->mode)
658 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
665 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
667 CORBA_free (key_listener->listener.typeseq);
668 CORBA_free (key_listener->keys);
669 g_free (key_listener);
673 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
675 CORBA_Object_release (clone->listener.object, ev);
676 spi_key_listener_data_free (clone, ev);
680 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
682 CORBA_Object_release (clone->object, ev);
683 CORBA_free (clone->typeseq);
688 spi_dec_listener_free (DEControllerListener *listener,
689 CORBA_Environment *ev)
691 bonobo_object_release_unref (listener->object, ev);
692 if (listener->type == SPI_DEVICE_TYPE_KBD)
693 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
697 _register_keygrab (SpiDEController *controller,
698 DEControllerGrabMask *grab_mask)
702 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
703 spi_grab_mask_compare_values);
706 DEControllerGrabMask *cur_mask = l->data;
708 cur_mask->ref_count++;
709 if (cur_mask->pending_remove)
711 cur_mask->pending_remove = FALSE;
716 controller->keygrabs_list =
717 g_list_prepend (controller->keygrabs_list,
718 spi_grab_mask_clone (grab_mask));
723 _deregister_keygrab (SpiDEController *controller,
724 DEControllerGrabMask *grab_mask)
728 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
729 spi_grab_mask_compare_values);
733 DEControllerGrabMask *cur_mask = l->data;
735 cur_mask->ref_count--;
736 if (cur_mask->ref_count <= 0)
738 cur_mask->pending_remove = TRUE;
743 DBG (1, g_warning ("De-registering non-existant grab"));
748 handle_keygrab (SpiDEController *controller,
749 DEControllerKeyListener *key_listener,
750 void (*process_cb) (SpiDEController *controller,
751 DEControllerGrabMask *grab_mask))
753 DEControllerGrabMask grab_mask = { 0 };
755 grab_mask.mod_mask = key_listener->mask;
756 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
758 grab_mask.key_val = AnyKey;
760 fprintf (stderr, "AnyKey grab!");
762 process_cb (controller, &grab_mask);
768 for (i = 0; i < key_listener->keys->_length; ++i)
770 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
771 long int key_val = keydef.keysym;
772 /* X Grabs require keycodes, not keysyms */
773 if (keydef.keystring && keydef.keystring[0])
775 key_val = XStringToKeysym(keydef.keystring);
779 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
783 key_val = keydef.keycode;
785 grab_mask.key_val = key_val;
786 process_cb (controller, &grab_mask);
792 spi_controller_register_global_keygrabs (SpiDEController *controller,
793 DEControllerKeyListener *key_listener)
795 handle_keygrab (controller, key_listener, _register_keygrab);
796 if (controller->xevie_display == NULL)
797 return spi_controller_update_key_grabs (controller, NULL);
803 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
804 DEControllerKeyListener *key_listener)
806 handle_keygrab (controller, key_listener, _deregister_keygrab);
807 if (controller->xevie_display == NULL)
808 spi_controller_update_key_grabs (controller, NULL);
812 spi_controller_register_device_listener (SpiDEController *controller,
813 DEControllerListener *listener,
814 CORBA_Environment *ev)
816 DEControllerKeyListener *key_listener;
818 switch (listener->type) {
819 case SPI_DEVICE_TYPE_KBD:
820 key_listener = (DEControllerKeyListener *) listener;
822 controller->key_listeners = g_list_prepend (controller->key_listeners,
824 if (key_listener->mode->global)
826 return spi_controller_register_global_keygrabs (controller, key_listener);
831 case SPI_DEVICE_TYPE_MOUSE:
832 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
835 DBG (1, g_warning ("listener registration for unknown device type.\n"));
842 spi_controller_notify_mouselisteners (SpiDEController *controller,
843 const Accessibility_DeviceEvent *event,
844 CORBA_Environment *ev)
847 GSList *notify = NULL, *l2;
848 GList **listeners = &controller->mouse_listeners;
849 gboolean is_consumed;
850 gboolean found = FALSE;
857 for (l = *listeners; l; l = l->next)
859 DEControllerListener *listener = l->data;
861 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
863 Accessibility_DeviceEventListener ls = listener->object;
865 if (ls != CORBA_OBJECT_NIL)
867 /* we clone (don't dup) the listener, to avoid refcount inc. */
868 notify = g_slist_prepend (notify,
869 spi_listener_clone (listener, ev));
875 #ifdef SPI_KEYEVENT_DEBUG
878 g_print ("no match for event\n");
883 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
885 DEControllerListener *listener = l2->data;
886 Accessibility_DeviceEventListener ls = listener->object;
888 CORBA_exception_init (ev);
889 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
893 DBG (2, g_warning ("error notifying listener, removing it\n"));
894 spi_deregister_controller_device_listener (controller, listener,
896 CORBA_exception_free (ev);
899 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
902 for (; l2; l2 = l2->next)
904 DEControllerListener *listener = l2->data;
905 spi_listener_clone_free (listener, ev);
906 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
909 g_slist_free (notify);
912 if (is_consumed) g_message ("consumed\n");
918 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
921 Accessibility_Event e;
922 Accessibility_DeviceEvent mouse_e;
923 CORBA_Environment ev;
924 gchar event_name[24];
925 gboolean is_consumed = FALSE;
926 gboolean xkb_mod_unlatch_occurred;
927 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
929 int button = xbutton_event->button;
931 unsigned int mouse_button_state = xbutton_event->state;
936 mouse_button_state |= Button1Mask;
939 mouse_button_state |= Button2Mask;
942 mouse_button_state |= Button3Mask;
945 mouse_button_state |= Button4Mask;
948 mouse_button_state |= Button5Mask;
952 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
953 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
956 fprintf (stderr, "mouse button %d %s (%x)\n",
957 xbutton_event->button,
958 (xevent->type == ButtonPress) ? "Press" : "Release",
961 snprintf (event_name, 22, "mouse:button:%d%c", button,
962 (xevent->type == ButtonPress) ? 'p' : 'r');
964 /* TODO: FIXME distinguish between physical and logical buttons */
965 mouse_e.type = (xevent->type == ButtonPress) ?
966 Accessibility_BUTTON_PRESSED_EVENT :
967 Accessibility_BUTTON_RELEASED_EVENT;
969 mouse_e.hw_code = button;
970 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
971 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
972 mouse_e.event_string = "";
973 mouse_e.is_text = CORBA_FALSE;
974 if ((mouse_button_state & mouse_button_mask) !=
975 (mouse_mask_state & mouse_button_mask))
977 if ((mouse_mask_state & key_modifier_mask) !=
978 (mouse_button_state & key_modifier_mask))
979 spi_dec_emit_modifier_event (controller,
980 mouse_mask_state, mouse_button_state);
981 mouse_mask_state = mouse_button_state;
983 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
984 e.type = CORBA_string_dup (event_name);
985 e.source = BONOBO_OBJREF (controller->registry->desktop);
986 e.detail1 = last_mouse_pos->x;
987 e.detail2 = last_mouse_pos->y;
988 spi_init_any_nil (&e.any_data);
989 CORBA_exception_init (&ev);
991 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
996 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
997 xevent->type == ButtonRelease);
999 /* if client wants to consume this event, and XKB latch state was
1000 * unset by this button event, we reset it
1002 if (is_consumed && xkb_mod_unlatch_occurred)
1003 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1005 XAllowEvents (spi_get_display (),
1006 (is_consumed) ? SyncPointer : ReplayPointer,
1010 static GdkFilterReturn
1011 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1013 XEvent *xevent = gdk_xevent;
1014 SpiDEController *controller;
1015 DEControllerPrivateData *priv;
1016 Display *display = spi_get_display ();
1017 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1018 priv = (DEControllerPrivateData *)
1019 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1021 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1023 if (controller->xevie_display == NULL)
1025 gboolean is_consumed;
1028 spi_device_event_controller_forward_key_event (controller, xevent);
1035 n_events = XPending (display);
1037 #ifdef SPI_KEYEVENT_DEBUG
1038 g_print ("Number of events pending: %d\n", n_events);
1040 for (i = 0; i < n_events; i++)
1042 XNextEvent (display, &next_event);
1043 if (next_event.type != KeyPress &&
1044 next_event.type != KeyRelease)
1045 g_warning ("Unexpected event type %d in queue", next_event.type);
1048 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1050 XUngrabKeyboard (display, CurrentTime);
1054 if (xevent->type == KeyPress)
1055 wait_for_release_event (xevent, controller);
1056 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1060 return GDK_FILTER_CONTINUE;
1062 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1064 spi_device_event_controller_forward_mouse_event (controller, xevent);
1066 if (xevent->type == priv->xkb_base_event_code)
1068 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1069 /* ugly but probably necessary...*/
1070 XSynchronize (display, TRUE);
1072 if (xkb_ev->xkb_type == XkbStateNotify)
1074 XkbStateNotifyEvent *xkb_snev =
1075 (XkbStateNotifyEvent *) xkb_ev;
1076 /* check the mouse, to catch mouse events grabbed by
1077 * another client; in case we should revert this XKB delatch
1079 if (!priv->pending_xkb_mod_relatch_mask)
1083 spi_dec_mouse_check (controller, &x, &y, &moved);
1085 /* we check again, since the previous call may have
1086 changed this flag */
1087 if (priv->pending_xkb_mod_relatch_mask)
1089 unsigned int feedback_mask;
1090 #ifdef SPI_XKB_DEBUG
1091 fprintf (stderr, "relatching %x\n",
1092 priv->pending_xkb_mod_relatch_mask);
1094 /* temporarily turn off the latch bell, if it's on */
1095 XkbGetControls (display,
1096 XkbAccessXFeedbackMask,
1098 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1099 if (feedback_mask & XkbAX_StickyKeysFBMask)
1101 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1103 priv->xkb_desc->ctrls->ax_options
1104 &= ~(XkbAX_StickyKeysFBMask);
1105 XkbChangeControls (display, priv->xkb_desc, &changes);
1107 /* TODO: account for lock as well as latch */
1108 XkbLatchModifiers (display,
1110 priv->pending_xkb_mod_relatch_mask,
1111 priv->pending_xkb_mod_relatch_mask);
1112 if (feedback_mask & XkbAX_StickyKeysFBMask)
1114 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1116 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1117 XkbChangeControls (display, priv->xkb_desc, &changes);
1119 #ifdef SPI_XKB_DEBUG
1120 fprintf (stderr, "relatched %x\n",
1121 priv->pending_xkb_mod_relatch_mask);
1123 priv->pending_xkb_mod_relatch_mask = 0;
1127 priv->xkb_latch_mask = xkb_snev->latched_mods;
1131 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1132 XSynchronize (display, FALSE);
1135 return GDK_FILTER_CONTINUE;
1139 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1141 if (error->error_code == BadAccess)
1143 g_message ("Could not complete key grab: grab already in use.\n");
1144 spi_error_code = BadAccess;
1149 return (*x_default_error_handler) (display, error);
1154 spi_controller_register_with_devices (SpiDEController *controller)
1156 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1157 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1158 /* FIXME: should check for extension first! */
1159 XTestGrabControl (spi_get_display (), True);
1161 /* calls to device-specific implementations and routines go here */
1162 /* register with: keyboard hardware code handler */
1163 /* register with: (translated) keystroke handler */
1165 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1166 &priv->xkb_major_extension_opcode,
1167 &priv->xkb_base_event_code,
1168 &priv->xkb_base_error_code, NULL, NULL);
1171 priv->xkb_desc = XkbGetMap (spi_get_display (), 0, XkbUseCoreKbd);
1172 XkbSelectEvents (spi_get_display (),
1174 XkbStateNotifyMask, XkbStateNotifyMask);
1175 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1179 gdk_window_add_filter (NULL, global_filter_fn, controller);
1181 gdk_window_set_events (gdk_get_default_root_window (),
1182 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1184 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1188 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1189 const Accessibility_DeviceEvent *key_event)
1196 g_print ("null key set!");
1200 len = key_set->_length;
1202 if (len == 0) /* special case, means "all keys/any key" */
1204 g_print ("anykey\n");
1208 for (i = 0; i < len; ++i)
1210 #ifdef SPI_KEYEVENT_DEBUG
1211 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1213 (int)key_set->_buffer[i].keysym,
1214 (int) key_set->_buffer[i].keycode,
1215 (int) key_event->id,
1216 (int) key_event->hw_code,
1217 key_event->event_string);
1219 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1223 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1227 if (key_event->event_string && key_event->event_string[0] &&
1228 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1238 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1239 const Accessibility_DeviceEvent *event)
1247 g_print ("null type seq!");
1251 len = type_seq->_length;
1253 if (len == 0) /* special case, means "all events/any event" */
1258 for (i = 0; i < len; ++i)
1261 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1262 (int) type_seq->_buffer[i], (int) event->type);
1264 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1274 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1275 DEControllerKeyListener *listener,
1276 CORBA_boolean is_system_global)
1278 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1279 spi_key_set_contains_key (listener->keys, key_event) &&
1280 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1281 (is_system_global == listener->mode->global))
1292 spi_controller_notify_keylisteners (SpiDEController *controller,
1293 const Accessibility_DeviceEvent *key_event,
1294 CORBA_boolean is_system_global,
1295 CORBA_Environment *ev)
1298 GSList *notify = NULL, *l2;
1299 GList **key_listeners = &controller->key_listeners;
1300 gboolean is_consumed;
1307 for (l = *key_listeners; l; l = l->next)
1309 DEControllerKeyListener *key_listener = l->data;
1311 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1313 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1315 if (ls != CORBA_OBJECT_NIL)
1317 /* we clone (don't dup) the listener, to avoid refcount inc. */
1318 notify = g_slist_prepend (notify,
1319 spi_key_listener_clone (key_listener, ev));
1324 #ifdef SPI_KEYEVENT_DEBUG
1327 g_print ("no match for event\n");
1331 is_consumed = FALSE;
1332 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1334 DEControllerKeyListener *key_listener = l2->data;
1335 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1337 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
1341 is_consumed = FALSE;
1342 spi_deregister_controller_key_listener (controller, key_listener,
1344 CORBA_exception_free (ev);
1347 spi_key_listener_clone_free (key_listener, ev);
1350 for (; l2; l2 = l2->next)
1352 DEControllerKeyListener *key_listener = l2->data;
1353 spi_key_listener_clone_free (key_listener, ev);
1354 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1357 g_slist_free (notify);
1360 if (is_consumed) g_message ("consumed\n");
1366 spi_clear_error_state ()
1368 gboolean retval = spi_error_code != 0;
1373 static Accessibility_DeviceEvent
1374 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1376 Accessibility_DeviceEvent key_event;
1378 const int cbuf_bytes = 20;
1382 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1383 key_event.id = (CORBA_long)(keysym);
1384 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1385 if (((XEvent *) x_key_event)->type == KeyPress)
1387 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1391 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1393 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1394 key_event.is_text = CORBA_FALSE;
1398 key_event.event_string = CORBA_string_dup ("space");
1401 key_event.event_string = CORBA_string_dup ("Tab");
1404 key_event.event_string = CORBA_string_dup ("Backspace");
1407 key_event.event_string = CORBA_string_dup ("Return");
1410 key_event.event_string = CORBA_string_dup ("Home");
1413 key_event.event_string = CORBA_string_dup ("Page_Down");
1416 key_event.event_string = CORBA_string_dup ("Page_Up");
1419 key_event.event_string = CORBA_string_dup ("F1");
1422 key_event.event_string = CORBA_string_dup ("F2");
1425 key_event.event_string = CORBA_string_dup ("F3");
1428 key_event.event_string = CORBA_string_dup ("F4");
1431 key_event.event_string = CORBA_string_dup ("F5");
1434 key_event.event_string = CORBA_string_dup ("F6");
1437 key_event.event_string = CORBA_string_dup ("F7");
1440 key_event.event_string = CORBA_string_dup ("F8");
1443 key_event.event_string = CORBA_string_dup ("F9");
1446 key_event.event_string = CORBA_string_dup ("F10");
1449 key_event.event_string = CORBA_string_dup ("F11");
1452 key_event.event_string = CORBA_string_dup ("F12");
1455 key_event.event_string = CORBA_string_dup ("End");
1458 key_event.event_string = CORBA_string_dup ("Escape");
1461 key_event.event_string = CORBA_string_dup ("Up");
1464 key_event.event_string = CORBA_string_dup ("Down");
1467 key_event.event_string = CORBA_string_dup ("Left");
1470 key_event.event_string = CORBA_string_dup ("Right");
1476 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1477 key_event.event_string = CORBA_string_dup (cbuf);
1478 c = g_utf8_get_char_validated (cbuf, nbytes);
1479 if ((c > 0) && g_unichar_isprint (c))
1481 key_event.is_text = CORBA_TRUE;
1482 /* incorrect for some composed chars? */
1487 key_event.event_string = CORBA_string_dup ("");
1491 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1492 #ifdef SPI_KEYEVENT_DEBUG
1494 char *pressed_str = "pressed";
1495 char *released_str = "released";
1498 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1499 state_ptr = pressed_str;
1501 state_ptr = released_str;
1504 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1505 (unsigned long) keysym,
1507 keysym ? (int) keysym : '*',
1508 (int) x_key_event->state,
1509 key_event.event_string,
1510 key_event.event_string[0],
1511 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1515 fprintf (stderr, "%s%c\n",
1516 (x_key_event->state & Mod1Mask)?"Alt-":"",
1517 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1518 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1519 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1520 #endif /* SPI_DEBUG */
1525 spi_controller_update_key_grabs (SpiDEController *controller,
1526 Accessibility_DeviceEvent *recv)
1529 gboolean update_failed = FALSE;
1532 g_return_val_if_fail (controller != NULL, FALSE);
1535 * masks known to work with default RH 7.1+:
1536 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1537 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1538 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1539 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1541 * ControlMask grabs are broken, must be in use already
1544 keycode = keycode_for_keysym (recv->id, NULL);
1545 for (l = controller->keygrabs_list; l; l = next)
1548 gboolean re_issue_grab;
1549 DEControllerGrabMask *grab_mask = l->data;
1553 re_issue_grab = recv &&
1554 (recv->modifiers & grab_mask->mod_mask) &&
1555 (grab_mask->key_val == keycode);
1558 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1559 (long int) grab_mask->key_val,
1560 (long int) grab_mask->mod_mask,
1561 grab_mask->pending_add ? '+' : '.',
1562 grab_mask->pending_remove ? '-' : '.',
1563 re_issue_grab ? "re-issue": "");
1568 if (grab_mask->pending_add && grab_mask->pending_remove)
1572 else if (grab_mask->pending_remove)
1575 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1577 XUngrabKey (spi_get_display (),
1579 grab_mask->mod_mask,
1580 gdk_x11_get_default_root_xwindow ());
1584 else if (grab_mask->pending_add || re_issue_grab)
1588 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1590 XGrabKey (spi_get_display (),
1592 grab_mask->mod_mask,
1593 gdk_x11_get_default_root_xwindow (),
1597 XSync (spi_get_display (), False);
1598 update_failed = spi_clear_error_state ();
1599 if (update_failed) {
1600 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1605 grab_mask->pending_add = FALSE;
1606 grab_mask->pending_remove = FALSE;
1610 g_assert (grab_mask->ref_count <= 0);
1612 controller->keygrabs_list = g_list_delete_link (
1613 controller->keygrabs_list, l);
1615 spi_grab_mask_free (grab_mask);
1620 return ! update_failed;
1624 * Implemented GObject::finalize
1627 spi_device_event_controller_object_finalize (GObject *object)
1629 SpiDEController *controller;
1630 DEControllerPrivateData *private;
1631 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1634 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1636 /* disconnect any special listeners, get rid of outstanding keygrabs */
1637 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1640 if (controller->xevie_display != NULL)
1642 XevieEnd(controller->xevie_display);
1643 #ifdef SPI_KEYEVENT_DEBUG
1644 printf("XevieEnd(dpy) finished \n");
1649 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1650 if (private->xkb_desc)
1651 XkbFreeKeyboard (private->xkb_desc, 0, True);
1653 spi_device_event_controller_parent_class->finalize (object);
1657 * CORBA Accessibility::DEController::registerKeystrokeListener
1658 * method implementation
1660 static CORBA_boolean
1661 impl_register_keystroke_listener (PortableServer_Servant servant,
1662 const Accessibility_DeviceEventListener l,
1663 const Accessibility_KeySet *keys,
1664 const Accessibility_ControllerEventMask mask,
1665 const Accessibility_EventTypeSeq *type,
1666 const Accessibility_EventListenerMode *mode,
1667 CORBA_Environment *ev)
1669 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1670 bonobo_object_from_servant (servant));
1671 DEControllerKeyListener *dec_listener;
1673 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1674 (void *) l, (unsigned long) mask);
1676 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1677 return spi_controller_register_device_listener (
1678 controller, (DEControllerListener *) dec_listener, ev);
1683 * CORBA Accessibility::DEController::registerDeviceEventListener
1684 * method implementation
1686 static CORBA_boolean
1687 impl_register_device_listener (PortableServer_Servant servant,
1688 const Accessibility_DeviceEventListener l,
1689 const Accessibility_EventTypeSeq *event_types,
1690 CORBA_Environment *ev)
1692 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1693 bonobo_object_from_servant (servant));
1694 DEControllerListener *dec_listener;
1696 dec_listener = spi_dec_listener_new (l, event_types, ev);
1697 return spi_controller_register_device_listener (
1698 controller, (DEControllerListener *) dec_listener, ev);
1702 CORBA_Environment *ev;
1703 DEControllerListener *listener;
1704 } RemoveListenerClosure;
1706 static SpiReEntrantContinue
1707 remove_listener_cb (GList * const *list,
1710 DEControllerListener *listener = (*list)->data;
1711 RemoveListenerClosure *ctx = user_data;
1713 if (CORBA_Object_is_equivalent (ctx->listener->object,
1714 listener->object, ctx->ev))
1716 spi_re_entrant_list_delete_link (list);
1717 spi_dec_listener_free (listener, ctx->ev);
1720 return SPI_RE_ENTRANT_CONTINUE;
1723 static SpiReEntrantContinue
1724 copy_key_listener_cb (GList * const *list,
1727 DEControllerKeyListener *key_listener = (*list)->data;
1728 RemoveListenerClosure *ctx = user_data;
1730 if (CORBA_Object_is_equivalent (ctx->listener->object,
1731 key_listener->listener.object, ctx->ev))
1733 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1734 DEControllerKeyListener *ctx_key_listener =
1735 (DEControllerKeyListener *) ctx->listener;
1736 CORBA_free (ctx_key_listener->keys);
1737 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1740 return SPI_RE_ENTRANT_CONTINUE;
1744 spi_deregister_controller_device_listener (SpiDEController *controller,
1745 DEControllerListener *listener,
1746 CORBA_Environment *ev)
1748 RemoveListenerClosure ctx;
1751 ctx.listener = listener;
1753 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1754 remove_listener_cb, &ctx);
1758 spi_deregister_controller_key_listener (SpiDEController *controller,
1759 DEControllerKeyListener *key_listener,
1760 CORBA_Environment *ev)
1762 RemoveListenerClosure ctx;
1765 ctx.listener = (DEControllerListener *) key_listener;
1767 /* special case, copy keyset from existing controller list entry */
1768 if (key_listener->keys->_length == 0)
1770 spi_re_entrant_list_foreach (&controller->key_listeners,
1771 copy_key_listener_cb, &ctx);
1774 spi_controller_deregister_global_keygrabs (controller, key_listener);
1776 spi_re_entrant_list_foreach (&controller->key_listeners,
1777 remove_listener_cb, &ctx);
1782 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1783 * method implementation
1786 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1787 const Accessibility_DeviceEventListener l,
1788 const Accessibility_KeySet *keys,
1789 const Accessibility_ControllerEventMask mask,
1790 const Accessibility_EventTypeSeq *type,
1791 CORBA_Environment *ev)
1793 DEControllerKeyListener *key_listener;
1794 SpiDEController *controller;
1796 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1798 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1800 #ifdef SPI_DEREGISTER_DEBUG
1801 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1802 (void *) l, (unsigned long) mask->value);
1805 spi_deregister_controller_key_listener (controller, key_listener, ev);
1807 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1811 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1812 * method implementation
1815 impl_deregister_device_listener (PortableServer_Servant servant,
1816 const Accessibility_DeviceEventListener l,
1817 const Accessibility_EventTypeSeq *event_types,
1818 CORBA_Environment *ev)
1820 SpiDEController *controller;
1821 DEControllerListener *listener =
1822 spi_dec_listener_new (l, event_types, ev);
1824 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1826 spi_deregister_controller_device_listener (controller, listener, ev);
1828 spi_dec_listener_free (listener, ev);
1831 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1833 unsigned int retval = 0;
1834 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1835 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1837 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1838 retval = XkbGetSlowKeysDelay (spi_get_display (),
1839 XkbUseCoreKbd, &bounce_delay);
1841 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1843 Status s = XkbGetControls (spi_get_display (),
1844 XkbAllControlsMask, priv->xkb_desc);
1847 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1848 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1853 #ifdef SPI_XKB_DEBUG
1854 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1859 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1861 unsigned int retval = 0;
1862 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1863 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1865 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1866 retval = XkbGetBounceKeysDelay (spi_get_display (),
1867 XkbUseCoreKbd, &bounce_delay);
1869 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1871 Status s = XkbGetControls (spi_get_display (),
1872 XkbAllControlsMask, priv->xkb_desc);
1875 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1876 retval = priv->xkb_desc->ctrls->debounce_delay;
1881 #ifdef SPI_XKB_DEBUG
1882 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1888 dec_synth_keycode_press (SpiDEController *controller,
1889 unsigned int keycode)
1891 unsigned int time = CurrentTime;
1892 unsigned int bounce_delay;
1893 unsigned int elapsed_msec;
1895 DEControllerPrivateData *priv =
1896 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1897 spi_dec_private_quark);
1898 if (keycode == priv->last_release_keycode)
1900 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
1903 gettimeofday (&tv, NULL);
1905 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1906 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1907 #ifdef SPI_XKB_DEBUG
1908 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1909 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
1911 #ifdef THIS_IS_BROKEN
1912 if (elapsed_msec < bounce_delay)
1913 time = bounce_delay - elapsed_msec + 1;
1915 time = bounce_delay + 10;
1916 /* fudge for broken XTest */
1918 #ifdef SPI_XKB_DEBUG
1919 fprintf (stderr, "waiting %d ms\n", time);
1923 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1924 priv->last_press_keycode = keycode;
1925 XSync (spi_get_display (), False);
1926 gettimeofday (&priv->last_press_time, NULL);
1931 dec_synth_keycode_release (SpiDEController *controller,
1932 unsigned int keycode)
1934 unsigned int time = CurrentTime;
1935 unsigned int slow_delay;
1936 unsigned int elapsed_msec;
1938 DEControllerPrivateData *priv =
1939 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1940 spi_dec_private_quark);
1941 if (keycode == priv->last_press_keycode)
1943 slow_delay = dec_xkb_get_slowkeys_delay (controller);
1946 gettimeofday (&tv, NULL);
1948 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1949 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1950 #ifdef SPI_XKB_DEBUG
1951 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1952 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
1954 #ifdef THIS_IS_BROKEN_DUNNO_WHY
1955 if (elapsed_msec < slow_delay)
1956 time = slow_delay - elapsed_msec + 1;
1958 time = slow_delay + 10;
1959 /* our XTest seems broken, we have to add slop as above */
1961 #ifdef SPI_XKB_DEBUG
1962 fprintf (stderr, "waiting %d ms\n", time);
1966 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1967 priv->last_release_keycode = keycode;
1968 XSync (spi_get_display (), False);
1969 gettimeofday (&priv->last_release_time, NULL);
1974 dec_get_modifier_state (SpiDEController *controller)
1976 return mouse_mask_state;
1980 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
1982 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1983 modifiers, modifiers);
1987 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
1989 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1994 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
1996 return ucs2keysym ((long) unichar);
2000 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2002 KeyCode key_synth_code;
2003 unsigned int modifiers, synth_mods, lock_mods;
2005 key_synth_code = keycode_for_keysym (keysym, &synth_mods);
2007 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2009 /* TODO: set the modifiers accordingly! */
2010 modifiers = dec_get_modifier_state (controller);
2011 /* side-effect; we may unset mousebutton modifiers here! */
2014 if (synth_mods != modifiers) {
2015 lock_mods = synth_mods & ~modifiers;
2016 dec_lock_modifiers (controller, lock_mods);
2018 dec_synth_keycode_press (controller, key_synth_code);
2019 dec_synth_keycode_release (controller, key_synth_code);
2020 if (synth_mods != modifiers)
2021 dec_unlock_modifiers (controller, lock_mods);
2027 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
2029 /* probably we need to create and inject an XIM handler eventually. */
2030 /* for now, try to match the string to existing
2031 * keycode+modifier states.
2035 gunichar unichar = 0;
2037 gboolean retval = TRUE;
2040 maxlen = strlen (keystring);
2041 keysyms = g_new0 (KeySym, maxlen);
2042 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2047 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2049 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2054 mbytes = g_unichar_to_utf8 (unichar, bytes);
2055 bytes[mbytes] = '\0';
2057 fprintf (stderr, "[unichar %s]", bytes);
2059 keysym = dec_keysym_for_unichar (controller, unichar);
2060 if (keysym == NoSymbol) {
2062 fprintf (stderr, "no keysym for %s", bytes);
2067 keysyms[i++] = keysym;
2068 keystring = g_utf8_next_char (keystring);
2071 for (i = 0; keysyms[i]; ++i) {
2072 if (!dec_synth_keysym (controller, keysyms[i])) {
2074 fprintf (stderr, "could not synthesize %c\n",
2089 * CORBA Accessibility::DEController::registerKeystrokeListener
2090 * method implementation
2093 impl_generate_keyboard_event (PortableServer_Servant servant,
2094 const CORBA_long keycode,
2095 const CORBA_char *keystring,
2096 const Accessibility_KeySynthType synth_type,
2097 CORBA_Environment *ev)
2099 SpiDEController *controller =
2100 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2101 long key_synth_code;
2105 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2106 (long) keycode, (int) synth_type);
2108 /* TODO: hide/wrap/remove X dependency */
2111 * TODO: when initializing, query for XTest extension before using,
2112 * and fall back to XSendEvent() if XTest is not available.
2115 gdk_error_trap_push ();
2116 key_synth_code = keycode;
2120 case Accessibility_KEY_PRESS:
2121 dec_synth_keycode_press (controller, keycode);
2123 case Accessibility_KEY_PRESSRELEASE:
2124 dec_synth_keycode_press (controller, keycode);
2125 case Accessibility_KEY_RELEASE:
2126 dec_synth_keycode_release (controller, keycode);
2128 case Accessibility_KEY_SYM:
2129 #ifdef SPI_XKB_DEBUG
2130 fprintf (stderr, "KeySym synthesis\n");
2133 * note: we are using long for 'keycode'
2134 * in our arg list; it can contain either
2135 * a keycode or a keysym.
2137 dec_synth_keysym (controller, (KeySym) keycode);
2139 case Accessibility_KEY_STRING:
2140 if (!dec_synth_keystring (controller, keystring))
2141 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2145 if (gdk_error_trap_pop ())
2147 DBG (-1, g_warning ("Error emitting keystroke"));
2149 if (synth_type == Accessibility_KEY_SYM) {
2153 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2155 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2157 spi_dec_clear_unlatch_pending (controller);
2161 /* Accessibility::DEController::generateMouseEvent */
2163 impl_generate_mouse_event (PortableServer_Servant servant,
2166 const CORBA_char *eventName,
2167 CORBA_Environment *ev)
2170 gboolean error = FALSE;
2171 Display *display = spi_get_display ();
2173 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2174 eventName, (long int) x, (long int) y);
2176 switch (eventName[0])
2179 switch (eventName[1])
2181 /* TODO: check number of buttons before parsing */
2202 if (x != -1 && y != -1)
2204 XTestFakeMotionEvent (display, DefaultScreen (display),
2207 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2208 if (eventName[2] == 'c')
2209 XTestFakeButtonEvent (display, button, FALSE, 1);
2210 else if (eventName[2] == 'd')
2212 XTestFakeButtonEvent (display, button, FALSE, 1);
2213 XTestFakeButtonEvent (display, button, TRUE, 2);
2214 XTestFakeButtonEvent (display, button, FALSE, 3);
2218 case 'r': /* relative motion */
2219 XTestFakeRelativeMotionEvent (display, x, y, 0);
2221 case 'a': /* absolute motion */
2222 XTestFakeMotionEvent (display, DefaultScreen (display),
2228 /* Accessibility::DEController::notifyListenersSync */
2229 static CORBA_boolean
2230 impl_notify_listeners_sync (PortableServer_Servant servant,
2231 const Accessibility_DeviceEvent *event,
2232 CORBA_Environment *ev)
2234 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2235 bonobo_object_from_servant (servant));
2237 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2238 controller, (int) event->id);
2240 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
2241 CORBA_TRUE : CORBA_FALSE;
2244 /* Accessibility::DEController::notifyListenersAsync */
2246 impl_notify_listeners_async (PortableServer_Servant servant,
2247 const Accessibility_DeviceEvent *event,
2248 CORBA_Environment *ev)
2250 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2251 bonobo_object_from_servant (servant));
2253 fprintf (stderr, "notifying listeners asynchronously\n");
2255 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
2259 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2261 GObjectClass * object_class = (GObjectClass *) klass;
2262 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2264 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2266 object_class->finalize = spi_device_event_controller_object_finalize;
2268 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2269 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2270 epv->registerDeviceEventListener = impl_register_device_listener;
2271 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2272 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2273 epv->generateMouseEvent = impl_generate_mouse_event;
2274 epv->notifyListenersSync = impl_notify_listeners_sync;
2275 epv->notifyListenersAsync = impl_notify_listeners_async;
2277 if (!spi_dec_private_quark)
2278 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2282 Bool isEvent(dpy,event,arg)
2291 handle_io (GIOChannel *source,
2292 GIOCondition condition,
2295 SpiDEController *controller = (SpiDEController *) data;
2296 gboolean is_consumed = FALSE;
2299 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2301 if (ev.type == KeyPress || ev.type == KeyRelease)
2302 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2305 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2310 #endif /* HAVE_XEVIE */
2313 spi_device_event_controller_init (SpiDEController *device_event_controller)
2318 #endif /* HAVE_XEVIE */
2320 DEControllerPrivateData *private;
2321 device_event_controller->key_listeners = NULL;
2322 device_event_controller->mouse_listeners = NULL;
2323 device_event_controller->keygrabs_list = NULL;
2324 device_event_controller->xevie_display = NULL;
2327 device_event_controller->xevie_display = XOpenDisplay(NULL);
2329 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2331 #ifdef SPI_KEYEVENT_DEBUG
2332 fprintf (stderr, "XevieStart() success \n");
2334 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2336 fd = ConnectionNumber(device_event_controller->xevie_display);
2337 ioc = g_io_channel_unix_new (fd);
2338 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2339 g_io_channel_unref (ioc);
2343 device_event_controller->xevie_display = NULL;
2344 #ifdef SPI_KEYEVENT_DEBUG
2345 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2348 #endif /* HAVE_XEVIE */
2350 private = g_new0 (DEControllerPrivateData, 1);
2351 gettimeofday (&private->last_press_time, NULL);
2352 gettimeofday (&private->last_release_time, NULL);
2353 g_object_set_qdata (G_OBJECT (device_event_controller),
2354 spi_dec_private_quark,
2356 spi_controller_register_with_devices (device_event_controller);
2360 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2361 const XEvent *event)
2363 CORBA_Environment ev;
2364 Accessibility_DeviceEvent key_event;
2366 g_assert (event->type == KeyPress || event->type == KeyRelease);
2368 CORBA_exception_init (&ev);
2370 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2372 if (controller->xevie_display == NULL)
2373 spi_controller_update_key_grabs (controller, &key_event);
2375 /* relay to listeners, and decide whether to consume it or not */
2376 return spi_controller_notify_keylisteners (controller, &key_event, CORBA_TRUE, &ev);
2380 spi_device_event_controller_new (SpiRegistry *registry)
2382 SpiDEController *retval = g_object_new (
2383 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2385 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2386 BONOBO_OBJECT (registry)));
2388 spi_dec_init_mouse_listener (registry);
2389 /* TODO: kill mouse listener on finalize */
2394 is_key_released (KeyCode code)
2400 XQueryKeymap (spi_get_display (), keys);
2401 down = BIT (keys, code);
2406 check_release (gpointer data)
2409 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2410 KeyCode code = event->hw_code;
2411 CORBA_Environment ev;
2413 released = is_key_released (code);
2417 check_release_handler = 0;
2418 event->type = Accessibility_KEY_RELEASED_EVENT;
2419 ev._major = CORBA_NO_EXCEPTION;
2420 spi_controller_notify_keylisteners (saved_controller, event, CORBA_TRUE, &ev);
2422 return (released == 0);
2425 static void wait_for_release_event (XEvent *event,
2426 SpiDEController *controller)
2428 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2429 saved_controller = controller;
2430 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2433 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2434 Accessibility_DeviceEventController,
2436 spi_device_event_controller)