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 /* Our parent Gtk object type */
59 #define PARENT_TYPE BONOBO_TYPE_OBJECT
61 /* A pointer to our parent object class */
62 static GObjectClass *spi_device_event_controller_parent_class;
63 static int spi_error_code = 0;
64 static GdkPoint last_mouse_pos_static = {0, 0};
65 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
66 static unsigned int mouse_mask_state = 0;
67 static unsigned int mouse_button_mask =
68 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
69 static unsigned int key_modifier_mask =
70 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
71 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
73 static GQuark spi_dec_private_quark = 0;
75 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
79 SPI_DEVICE_TYPE_MOUSE,
80 SPI_DEVICE_TYPE_LAST_DEFINED
81 } SpiDeviceTypeCategory;
85 guint pending_add : 1;
86 guint pending_remove : 1;
88 Accessibility_ControllerEventMask mod_mask;
89 CORBA_unsigned_long key_val; /* KeyCode */
90 } DEControllerGrabMask;
94 SpiDeviceTypeCategory type;
95 Accessibility_EventTypeSeq *typeseq;
96 } DEControllerListener;
99 DEControllerListener listener;
101 Accessibility_KeySet *keys;
102 Accessibility_ControllerEventMask mask;
103 Accessibility_EventListenerMode *mode;
104 } DEControllerKeyListener;
107 unsigned int last_press_keycode;
108 unsigned int last_release_keycode;
109 struct timeval last_press_time;
110 struct timeval last_release_time;
112 int xkb_major_extension_opcode;
113 int xkb_base_event_code;
114 int xkb_base_error_code;
115 unsigned int xkb_latch_mask;
116 unsigned int pending_xkb_mod_relatch_mask;
118 } DEControllerPrivateData;
120 static void spi_controller_register_with_devices (SpiDEController *controller);
121 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
122 Accessibility_DeviceEvent *recv);
123 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
124 DEControllerListener *l,
125 CORBA_Environment *ev);
126 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
127 const XEvent *event);
128 static void spi_deregister_controller_device_listener (SpiDEController *controller,
129 DEControllerListener *listener,
130 CORBA_Environment *ev);
131 static void spi_deregister_controller_key_listener (SpiDEController *controller,
132 DEControllerKeyListener *key_listener,
133 CORBA_Environment *ev);
134 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
135 const Accessibility_DeviceEvent *event,
136 CORBA_Environment *ev);
138 static gboolean spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
139 const Accessibility_DeviceEvent *event);
140 static gboolean spi_clear_error_state (void);
141 static gboolean spi_dec_poll_mouse_moved (gpointer data);
142 static gboolean spi_dec_poll_mouse_moving (gpointer data);
143 static gboolean spi_dec_poll_mouse_idle (gpointer data);
145 #define spi_get_display() GDK_DISPLAY()
147 /* Private methods */
150 keysym_mod_mask (KeySym keysym, KeyCode keycode)
152 /* we really should use XKB and look directly at the keymap */
153 /* this is very inelegant */
154 Display *display = spi_get_display ();
155 unsigned int mods_rtn = 0;
156 unsigned int retval = 0;
159 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
160 (sym_rtn == keysym)) {
163 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
164 (sym_rtn == keysym)) {
167 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
168 (sym_rtn == keysym)) {
171 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
172 (sym_rtn == keysym)) {
175 else if (XkbLookupKeySym (display, keycode,
176 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
177 (sym_rtn == keysym)) {
178 retval = (Mod2Mask | ShiftMask);
180 else if (XkbLookupKeySym (display, keycode,
181 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
182 (sym_rtn == keysym)) {
183 retval = (Mod3Mask | ShiftMask);
185 else if (XkbLookupKeySym (display, keycode,
186 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
187 (sym_rtn == keysym)) {
188 retval = (Mod4Mask | ShiftMask);
196 keycode_for_keysym (long keysym, unsigned int *modmask)
199 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
201 *modmask = keysym_mod_mask (keysym, keycode);
205 static DEControllerGrabMask *
206 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
208 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
210 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
212 clone->ref_count = 1;
213 clone->pending_add = TRUE;
214 clone->pending_remove = FALSE;
220 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
226 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
228 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
229 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
237 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
242 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
244 DEControllerPrivateData *priv =
245 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
247 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
248 priv->xkb_latch_mask);
250 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
254 spi_dec_clear_unlatch_pending (SpiDEController *controller)
256 DEControllerPrivateData *priv =
257 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
258 priv->xkb_latch_mask = 0;
262 spi_dec_button_update_and_emit (SpiDEController *controller,
265 CORBA_Environment ev;
266 Accessibility_Event e;
267 Accessibility_DeviceEvent mouse_e;
268 gchar event_name[24];
269 gboolean is_consumed = FALSE;
271 if ((mask_return & mouse_button_mask) !=
272 (mouse_mask_state & mouse_button_mask))
274 int button_number = 0;
275 gboolean is_down = False;
277 if (!(mask_return & Button1Mask) &&
278 (mouse_mask_state & Button1Mask))
280 mouse_mask_state &= ~Button1Mask;
283 else if ((mask_return & Button1Mask) &&
284 !(mouse_mask_state & Button1Mask))
286 mouse_mask_state |= Button1Mask;
290 else if (!(mask_return & Button2Mask) &&
291 (mouse_mask_state & Button2Mask))
293 mouse_mask_state &= ~Button2Mask;
296 else if ((mask_return & Button2Mask) &&
297 !(mouse_mask_state & Button2Mask))
299 mouse_mask_state |= Button2Mask;
303 else if (!(mask_return & Button3Mask) &&
304 (mouse_mask_state & Button3Mask))
306 mouse_mask_state &= ~Button3Mask;
309 else if ((mask_return & Button3Mask) &&
310 !(mouse_mask_state & Button3Mask))
312 mouse_mask_state |= Button3Mask;
316 else if (!(mask_return & Button4Mask) &&
317 (mouse_mask_state & Button4Mask))
319 mouse_mask_state &= ~Button4Mask;
322 else if ((mask_return & Button4Mask) &&
323 !(mouse_mask_state & Button4Mask))
325 mouse_mask_state |= Button4Mask;
329 else if (!(mask_return & Button5Mask) &&
330 (mouse_mask_state & Button5Mask))
332 mouse_mask_state &= ~Button5Mask;
335 else if ((mask_return & Button5Mask) &&
336 !(mouse_mask_state & Button5Mask))
338 mouse_mask_state |= Button5Mask;
344 fprintf (stderr, "Button %d %s\n",
345 button_number, (is_down) ? "Pressed" : "Released");
347 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
348 (is_down) ? 'p' : 'r');
349 /* TODO: FIXME distinguish between physical and
352 mouse_e.type = (is_down) ?
353 Accessibility_BUTTON_PRESSED_EVENT :
354 Accessibility_BUTTON_RELEASED_EVENT;
355 mouse_e.id = button_number;
356 mouse_e.hw_code = button_number;
357 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
358 mouse_e.timestamp = 0;
359 mouse_e.event_string = "";
360 mouse_e.is_text = CORBA_FALSE;
362 spi_controller_notify_mouselisteners (controller,
366 e.source = BONOBO_OBJREF (controller->registry->desktop);
367 e.detail1 = last_mouse_pos->x;
368 e.detail2 = last_mouse_pos->y;
369 spi_init_any_nil (&e.any_data);
370 CORBA_exception_init (&ev);
373 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
378 spi_dec_set_unlatch_pending (controller, mask_return);
390 spi_dec_mouse_check (SpiDEController *controller,
391 int *x, int *y, gboolean *moved)
393 Accessibility_Event e;
394 CORBA_Environment ev;
395 int win_x_return,win_y_return;
396 unsigned int mask_return;
397 Window root_return, child_return;
398 Display *display = spi_get_display ();
401 XQueryPointer(display, DefaultRootWindow (display),
402 &root_return, &child_return,
404 &win_x_return, &win_y_return, &mask_return);
406 * Since many clients grab the pointer, and X goes an automatic
407 * pointer grab on mouse-down, we often must detect mouse button events
408 * by polling rather than via a button grab.
409 * The while loop (rather than if) is used since it's possible that
410 * multiple buttons have changed state since we last checked.
412 if (mask_return != mouse_mask_state)
414 while (spi_dec_button_update_and_emit (controller, mask_return));
417 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
419 e.type = "mouse:abs";
420 e.source = BONOBO_OBJREF (controller->registry->desktop);
423 spi_init_any_nil (&e.any_data);
424 CORBA_exception_init (&ev);
425 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
428 e.type = "mouse:rel";
429 e.source = BONOBO_OBJREF (controller->registry->desktop);
430 e.detail1 = *x - last_mouse_pos->x;
431 e.detail2 = *y - last_mouse_pos->y;
432 spi_init_any_nil (&e.any_data);
433 CORBA_exception_init (&ev);
434 last_mouse_pos->x = *x;
435 last_mouse_pos->y = *y;
436 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
450 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
453 Accessibility_Event e;
454 CORBA_Environment ev;
457 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
458 prev_mask, current_mask);
461 /* set bits for the virtual modifiers like NUMLOCK */
462 if (prev_mask & _numlock_physical_mask)
463 prev_mask |= SPI_KEYMASK_NUMLOCK;
464 if (current_mask & _numlock_physical_mask)
465 current_mask |= SPI_KEYMASK_NUMLOCK;
467 e.type = "keyboard:modifiers";
468 e.source = BONOBO_OBJREF (controller->registry->desktop);
469 e.detail1 = prev_mask & key_modifier_mask;
470 e.detail2 = current_mask & key_modifier_mask;
471 spi_init_any_nil (&e.any_data);
472 CORBA_exception_init (&ev);
473 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
479 spi_dec_poll_mouse_moved (gpointer data)
481 SpiRegistry *registry = SPI_REGISTRY (data);
482 SpiDEController *controller = registry->de_controller;
487 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
489 if ((mask_return & key_modifier_mask) !=
490 (mouse_mask_state & key_modifier_mask))
492 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
493 mouse_mask_state = mask_return;
500 spi_dec_poll_mouse_idle (gpointer data)
502 if (! spi_dec_poll_mouse_moved (data))
506 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
512 spi_dec_poll_mouse_moving (gpointer data)
514 if (spi_dec_poll_mouse_moved (data))
518 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
523 #ifdef WE_NEED_UGRAB_MOUSE
525 spi_dec_ungrab_mouse (gpointer data)
527 Display *display = spi_get_display ();
530 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
531 XDefaultRootWindow (spi_get_display ()));
538 spi_dec_init_mouse_listener (SpiRegistry *registry)
540 Display *display = spi_get_display ();
541 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
545 if (XGrabButton (display, AnyButton, AnyModifier,
546 gdk_x11_get_default_root_xwindow (),
547 True, ButtonPressMask | ButtonReleaseMask,
548 GrabModeSync, GrabModeAsync, None, None) != Success) {
550 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
554 XSync (display, False);
556 fprintf (stderr, "mouse buttons grabbed\n");
562 * Eventually we can use this to make the marshalling of mask types
563 * more sane, but for now we just use this to detect
564 * the use of 'virtual' masks such as Mumlock and convert them to
565 * system-specific mask values (i.e. ModMask).
568 static Accessibility_ControllerEventMask
569 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
571 DEControllerPrivateData *priv;
573 if (mask == SPI_KEYMASK_NUMLOCK) {
574 mask = _numlock_physical_mask;
579 static DEControllerKeyListener *
580 spi_dec_key_listener_new (CORBA_Object l,
581 const Accessibility_KeySet *keys,
582 const Accessibility_ControllerEventMask mask,
583 const Accessibility_EventTypeSeq *typeseq,
584 const Accessibility_EventListenerMode *mode,
585 CORBA_Environment *ev)
587 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
588 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
589 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
590 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
591 key_listener->mask = spi_dec_translate_mask (mask);
592 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
594 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
596 key_listener->mode = NULL;
599 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
600 (unsigned int) key_listener->mask,
601 (int) (mode ? mode->global : 0),
602 (void *) key_listener->keys,
603 (int) (key_listener->keys ? key_listener->keys->_length : 0));
609 static DEControllerListener *
610 spi_dec_listener_new (CORBA_Object l,
611 const Accessibility_EventTypeSeq *typeseq,
612 CORBA_Environment *ev)
614 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
615 listener->object = bonobo_object_dup_ref (l, ev);
616 listener->type = SPI_DEVICE_TYPE_MOUSE;
617 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
621 static DEControllerListener *
622 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
624 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
626 CORBA_Object_duplicate (listener->object, ev);
627 clone->type = listener->type;
628 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
632 static DEControllerKeyListener *
633 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
635 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
636 clone->listener.object =
637 CORBA_Object_duplicate (key_listener->listener.object, ev);
638 clone->listener.type = SPI_DEVICE_TYPE_KBD;
639 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
640 clone->mask = key_listener->mask;
641 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
642 if (key_listener->mode)
643 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
650 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
652 CORBA_free (key_listener->listener.typeseq);
653 CORBA_free (key_listener->keys);
654 g_free (key_listener);
658 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
660 CORBA_Object_release (clone->listener.object, ev);
661 spi_key_listener_data_free (clone, ev);
665 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
667 CORBA_Object_release (clone->object, ev);
668 CORBA_free (clone->typeseq);
673 spi_dec_listener_free (DEControllerListener *listener,
674 CORBA_Environment *ev)
676 bonobo_object_release_unref (listener->object, ev);
677 if (listener->type == SPI_DEVICE_TYPE_KBD)
678 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
682 _register_keygrab (SpiDEController *controller,
683 DEControllerGrabMask *grab_mask)
687 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
688 spi_grab_mask_compare_values);
691 DEControllerGrabMask *cur_mask = l->data;
693 cur_mask->ref_count++;
694 if (cur_mask->pending_remove)
696 cur_mask->pending_remove = FALSE;
701 controller->keygrabs_list =
702 g_list_prepend (controller->keygrabs_list,
703 spi_grab_mask_clone (grab_mask));
708 _deregister_keygrab (SpiDEController *controller,
709 DEControllerGrabMask *grab_mask)
713 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
714 spi_grab_mask_compare_values);
718 DEControllerGrabMask *cur_mask = l->data;
720 cur_mask->ref_count--;
721 if (cur_mask->ref_count <= 0)
723 cur_mask->pending_remove = TRUE;
728 DBG (1, g_warning ("De-registering non-existant grab"));
733 handle_keygrab (SpiDEController *controller,
734 DEControllerKeyListener *key_listener,
735 void (*process_cb) (SpiDEController *controller,
736 DEControllerGrabMask *grab_mask))
738 DEControllerGrabMask grab_mask = { 0 };
740 grab_mask.mod_mask = key_listener->mask;
741 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
743 grab_mask.key_val = AnyKey;
745 fprintf (stderr, "AnyKey grab!");
747 process_cb (controller, &grab_mask);
753 for (i = 0; i < key_listener->keys->_length; ++i)
755 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
756 long int key_val = keydef.keysym;
757 /* X Grabs require keycodes, not keysyms */
758 if (keydef.keystring && keydef.keystring[0])
760 key_val = XStringToKeysym(keydef.keystring);
764 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
768 key_val = keydef.keycode;
770 grab_mask.key_val = key_val;
771 process_cb (controller, &grab_mask);
777 spi_controller_register_global_keygrabs (SpiDEController *controller,
778 DEControllerKeyListener *key_listener)
780 handle_keygrab (controller, key_listener, _register_keygrab);
781 if (controller->xevie_display == NULL)
782 return spi_controller_update_key_grabs (controller, NULL);
788 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
789 DEControllerKeyListener *key_listener)
791 handle_keygrab (controller, key_listener, _deregister_keygrab);
792 if (controller->xevie_display == NULL)
793 spi_controller_update_key_grabs (controller, NULL);
797 spi_controller_register_device_listener (SpiDEController *controller,
798 DEControllerListener *listener,
799 CORBA_Environment *ev)
801 DEControllerKeyListener *key_listener;
803 switch (listener->type) {
804 case SPI_DEVICE_TYPE_KBD:
805 key_listener = (DEControllerKeyListener *) listener;
807 controller->key_listeners = g_list_prepend (controller->key_listeners,
809 if (key_listener->mode->global)
811 return spi_controller_register_global_keygrabs (controller, key_listener);
816 case SPI_DEVICE_TYPE_MOUSE:
817 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
820 DBG (1, g_warning ("listener registration for unknown device type.\n"));
827 spi_controller_notify_mouselisteners (SpiDEController *controller,
828 const Accessibility_DeviceEvent *event,
829 CORBA_Environment *ev)
832 GSList *notify = NULL, *l2;
833 GList **listeners = &controller->mouse_listeners;
834 gboolean is_consumed;
835 gboolean found = FALSE;
842 for (l = *listeners; l; l = l->next)
844 DEControllerListener *listener = l->data;
846 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
848 Accessibility_DeviceEventListener ls = listener->object;
850 if (ls != CORBA_OBJECT_NIL)
852 /* we clone (don't dup) the listener, to avoid refcount inc. */
853 notify = g_slist_prepend (notify,
854 spi_listener_clone (listener, ev));
860 #ifdef SPI_KEYEVENT_DEBUG
863 g_print ("no match for event\n");
868 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
870 DEControllerListener *listener = l2->data;
871 Accessibility_DeviceEventListener ls = listener->object;
873 CORBA_exception_init (ev);
874 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
878 DBG (2, g_warning ("error notifying listener, removing it\n"));
879 spi_deregister_controller_device_listener (controller, listener,
881 CORBA_exception_free (ev);
884 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
887 for (; l2; l2 = l2->next)
889 DEControllerListener *listener = l2->data;
890 spi_listener_clone_free (listener, ev);
891 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
894 g_slist_free (notify);
897 if (is_consumed) g_message ("consumed\n");
903 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
906 Accessibility_Event e;
907 Accessibility_DeviceEvent mouse_e;
908 CORBA_Environment ev;
909 gchar event_name[24];
910 gboolean is_consumed = FALSE;
911 gboolean xkb_mod_unlatch_occurred;
912 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
914 int button = xbutton_event->button;
916 unsigned int mouse_button_state = xbutton_event->state;
921 mouse_button_state |= Button1Mask;
924 mouse_button_state |= Button2Mask;
927 mouse_button_state |= Button3Mask;
930 mouse_button_state |= Button4Mask;
933 mouse_button_state |= Button5Mask;
937 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
938 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
941 fprintf (stderr, "mouse button %d %s (%x)\n",
942 xbutton_event->button,
943 (xevent->type == ButtonPress) ? "Press" : "Release",
946 snprintf (event_name, 22, "mouse:button:%d%c", button,
947 (xevent->type == ButtonPress) ? 'p' : 'r');
949 /* TODO: FIXME distinguish between physical and logical buttons */
950 mouse_e.type = (xevent->type == ButtonPress) ?
951 Accessibility_BUTTON_PRESSED_EVENT :
952 Accessibility_BUTTON_RELEASED_EVENT;
954 mouse_e.hw_code = button;
955 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
956 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
957 mouse_e.event_string = "";
958 mouse_e.is_text = CORBA_FALSE;
959 if ((mouse_button_state & mouse_button_mask) !=
960 (mouse_mask_state & mouse_button_mask))
962 if ((mouse_mask_state & key_modifier_mask) !=
963 (mouse_button_state & key_modifier_mask))
964 spi_dec_emit_modifier_event (controller,
965 mouse_mask_state, mouse_button_state);
966 mouse_mask_state = mouse_button_state;
968 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
969 e.type = CORBA_string_dup (event_name);
970 e.source = BONOBO_OBJREF (controller->registry->desktop);
971 e.detail1 = last_mouse_pos->x;
972 e.detail2 = last_mouse_pos->y;
973 spi_init_any_nil (&e.any_data);
974 CORBA_exception_init (&ev);
976 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
981 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
982 xevent->type == ButtonRelease);
984 /* if client wants to consume this event, and XKB latch state was
985 * unset by this button event, we reset it
987 if (is_consumed && xkb_mod_unlatch_occurred)
988 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
990 XAllowEvents (spi_get_display (),
991 (is_consumed) ? SyncPointer : ReplayPointer,
995 static GdkFilterReturn
996 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
998 XEvent *xevent = gdk_xevent;
999 SpiDEController *controller;
1000 DEControllerPrivateData *priv;
1001 Display *display = spi_get_display ();
1002 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1003 priv = (DEControllerPrivateData *)
1004 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1006 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1008 if (controller->xevie_display == NULL)
1010 gboolean is_consumed =
1011 spi_device_event_controller_forward_key_event (controller, xevent);
1014 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
1016 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
1019 return GDK_FILTER_CONTINUE;
1021 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1023 spi_device_event_controller_forward_mouse_event (controller, xevent);
1025 if (xevent->type == priv->xkb_base_event_code)
1027 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1028 /* ugly but probably necessary...*/
1029 XSynchronize (spi_get_display (), TRUE);
1031 if (xkb_ev->xkb_type == XkbStateNotify)
1033 XkbStateNotifyEvent *xkb_snev =
1034 (XkbStateNotifyEvent *) xkb_ev;
1035 /* check the mouse, to catch mouse events grabbed by
1036 * another client; in case we should revert this XKB delatch
1038 if (!priv->pending_xkb_mod_relatch_mask)
1042 spi_dec_mouse_check (controller, &x, &y, &moved);
1044 /* we check again, since the previous call may have
1045 changed this flag */
1046 if (priv->pending_xkb_mod_relatch_mask)
1048 unsigned int feedback_mask;
1049 #ifdef SPI_XKB_DEBUG
1050 fprintf (stderr, "relatching %x\n",
1051 priv->pending_xkb_mod_relatch_mask);
1053 /* temporarily turn off the latch bell, if it's on */
1054 XkbGetControls (display,
1055 XkbAccessXFeedbackMask,
1057 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1058 if (feedback_mask & XkbAX_StickyKeysFBMask)
1060 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1062 priv->xkb_desc->ctrls->ax_options
1063 &= ~(XkbAX_StickyKeysFBMask);
1064 XkbChangeControls (display, priv->xkb_desc, &changes);
1066 /* TODO: account for lock as well as latch */
1067 XkbLatchModifiers (display,
1069 priv->pending_xkb_mod_relatch_mask,
1070 priv->pending_xkb_mod_relatch_mask);
1071 if (feedback_mask & XkbAX_StickyKeysFBMask)
1073 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1075 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1076 XkbChangeControls (display, priv->xkb_desc, &changes);
1078 #ifdef SPI_XKB_DEBUG
1079 fprintf (stderr, "relatched %x\n",
1080 priv->pending_xkb_mod_relatch_mask);
1082 priv->pending_xkb_mod_relatch_mask = 0;
1086 priv->xkb_latch_mask = xkb_snev->latched_mods;
1090 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1091 XSynchronize (spi_get_display (), FALSE);
1094 return GDK_FILTER_CONTINUE;
1098 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1100 if (error->error_code == BadAccess)
1102 g_message ("Could not complete key grab: grab already in use.\n");
1103 spi_error_code = BadAccess;
1108 return (*x_default_error_handler) (display, error);
1113 spi_controller_register_with_devices (SpiDEController *controller)
1115 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1116 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1117 /* FIXME: should check for extension first! */
1118 XTestGrabControl (spi_get_display (), True);
1120 /* calls to device-specific implementations and routines go here */
1121 /* register with: keyboard hardware code handler */
1122 /* register with: (translated) keystroke handler */
1124 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1125 &priv->xkb_major_extension_opcode,
1126 &priv->xkb_base_event_code,
1127 &priv->xkb_base_error_code, NULL, NULL);
1130 priv->xkb_desc = XkbGetMap (spi_get_display (), 0, XkbUseCoreKbd);
1131 XkbSelectEvents (spi_get_display (),
1133 XkbStateNotifyMask, XkbStateNotifyMask);
1134 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1138 gdk_window_add_filter (NULL, global_filter_fn, controller);
1140 gdk_window_set_events (gdk_get_default_root_window (),
1141 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1143 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1147 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1148 const Accessibility_DeviceEvent *key_event)
1155 g_print ("null key set!");
1159 len = key_set->_length;
1161 if (len == 0) /* special case, means "all keys/any key" */
1163 g_print ("anykey\n");
1167 for (i = 0; i < len; ++i)
1169 #ifdef SPI_KEYEVENT_DEBUG
1170 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1172 (int)key_set->_buffer[i].keysym,
1173 (int) key_set->_buffer[i].keycode,
1174 (int) key_event->id,
1175 (int) key_event->hw_code,
1176 key_event->event_string);
1178 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1182 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1186 if (key_event->event_string && key_event->event_string[0] &&
1187 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1197 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1198 const Accessibility_DeviceEvent *event)
1206 g_print ("null type seq!");
1210 len = type_seq->_length;
1212 if (len == 0) /* special case, means "all events/any event" */
1217 for (i = 0; i < len; ++i)
1220 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1221 (int) type_seq->_buffer[i], (int) event->type);
1223 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1233 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1234 DEControllerKeyListener *listener,
1235 CORBA_boolean is_system_global)
1237 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1238 spi_key_set_contains_key (listener->keys, key_event) &&
1239 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1240 (is_system_global == listener->mode->global))
1251 spi_controller_notify_keylisteners (SpiDEController *controller,
1252 const Accessibility_DeviceEvent *key_event,
1253 CORBA_boolean is_system_global,
1254 CORBA_Environment *ev)
1257 GSList *notify = NULL, *l2;
1258 GList **key_listeners = &controller->key_listeners;
1259 gboolean is_consumed;
1266 for (l = *key_listeners; l; l = l->next)
1268 DEControllerKeyListener *key_listener = l->data;
1270 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1272 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1274 if (ls != CORBA_OBJECT_NIL)
1276 /* we clone (don't dup) the listener, to avoid refcount inc. */
1277 notify = g_slist_prepend (notify,
1278 spi_key_listener_clone (key_listener, ev));
1283 #ifdef SPI_KEYEVENT_DEBUG
1286 g_print ("no match for event\n");
1290 is_consumed = FALSE;
1291 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1293 DEControllerKeyListener *key_listener = l2->data;
1294 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1296 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
1300 is_consumed = FALSE;
1301 spi_deregister_controller_key_listener (controller, key_listener,
1303 CORBA_exception_free (ev);
1306 spi_key_listener_clone_free (key_listener, ev);
1309 for (; l2; l2 = l2->next)
1311 DEControllerKeyListener *key_listener = l2->data;
1312 spi_key_listener_clone_free (key_listener, ev);
1313 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1316 g_slist_free (notify);
1319 if (is_consumed) g_message ("consumed\n");
1325 spi_clear_error_state ()
1327 gboolean retval = spi_error_code != 0;
1332 static Accessibility_DeviceEvent
1333 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1335 Accessibility_DeviceEvent key_event;
1337 const int cbuf_bytes = 20;
1338 char cbuf [cbuf_bytes+1];
1341 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1342 key_event.id = (CORBA_long)(keysym);
1343 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1344 if (((XEvent *) x_key_event)->type == KeyPress)
1346 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1350 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1352 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1353 key_event.is_text = CORBA_FALSE;
1357 key_event.event_string = CORBA_string_dup ("space");
1360 key_event.event_string = CORBA_string_dup ("Tab");
1363 key_event.event_string = CORBA_string_dup ("Backspace");
1366 key_event.event_string = CORBA_string_dup ("Return");
1369 key_event.event_string = CORBA_string_dup ("Home");
1372 key_event.event_string = CORBA_string_dup ("Page_Down");
1375 key_event.event_string = CORBA_string_dup ("Page_Up");
1378 key_event.event_string = CORBA_string_dup ("F1");
1381 key_event.event_string = CORBA_string_dup ("F2");
1384 key_event.event_string = CORBA_string_dup ("F3");
1387 key_event.event_string = CORBA_string_dup ("F4");
1390 key_event.event_string = CORBA_string_dup ("F5");
1393 key_event.event_string = CORBA_string_dup ("F6");
1396 key_event.event_string = CORBA_string_dup ("F7");
1399 key_event.event_string = CORBA_string_dup ("F8");
1402 key_event.event_string = CORBA_string_dup ("F9");
1405 key_event.event_string = CORBA_string_dup ("F10");
1408 key_event.event_string = CORBA_string_dup ("F11");
1411 key_event.event_string = CORBA_string_dup ("F12");
1414 key_event.event_string = CORBA_string_dup ("End");
1417 key_event.event_string = CORBA_string_dup ("Escape");
1420 key_event.event_string = CORBA_string_dup ("Up");
1423 key_event.event_string = CORBA_string_dup ("Down");
1426 key_event.event_string = CORBA_string_dup ("Left");
1429 key_event.event_string = CORBA_string_dup ("Right");
1435 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1436 key_event.event_string = CORBA_string_dup (cbuf);
1437 c = g_utf8_get_char_validated (cbuf, nbytes);
1438 if ((c > 0) && g_unichar_isprint (c))
1440 key_event.is_text = CORBA_TRUE;
1441 /* incorrect for some composed chars? */
1446 key_event.event_string = CORBA_string_dup ("");
1450 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1451 #ifdef SPI_KEYEVENT_DEBUG
1453 char *pressed_str = "pressed";
1454 char *released_str = "released";
1457 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1458 state_ptr = pressed_str;
1460 state_ptr = released_str;
1463 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1464 (unsigned long) keysym,
1466 keysym ? (int) keysym : '*',
1467 (int) x_key_event->state,
1468 key_event.event_string,
1469 key_event.event_string[0],
1470 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1474 fprintf (stderr, "%s%c\n",
1475 (x_key_event->state & Mod1Mask)?"Alt-":"",
1476 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1477 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1478 #endif /* SPI_DEBUG */
1483 spi_controller_update_key_grabs (SpiDEController *controller,
1484 Accessibility_DeviceEvent *recv)
1487 gboolean update_failed = FALSE;
1489 g_return_val_if_fail (controller != NULL, FALSE);
1492 * masks known to work with default RH 7.1+:
1493 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1494 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1495 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1496 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1498 * ControlMask grabs are broken, must be in use already
1500 for (l = controller->keygrabs_list; l; l = next)
1503 gboolean re_issue_grab;
1504 DEControllerGrabMask *grab_mask = l->data;
1508 re_issue_grab = recv &&
1509 (recv->modifiers & grab_mask->mod_mask) &&
1510 (grab_mask->key_val == keycode_for_keysym (recv->id, NULL));
1513 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1514 (long int) grab_mask->key_val,
1515 (long int) grab_mask->mod_mask,
1516 grab_mask->pending_add ? '+' : '.',
1517 grab_mask->pending_remove ? '-' : '.',
1518 re_issue_grab ? "re-issue": "");
1523 if (grab_mask->pending_add && grab_mask->pending_remove)
1527 else if (grab_mask->pending_remove)
1530 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1532 XUngrabKey (spi_get_display (),
1534 grab_mask->mod_mask,
1535 gdk_x11_get_default_root_xwindow ());
1539 else if (grab_mask->pending_add || re_issue_grab)
1543 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1545 XGrabKey (spi_get_display (),
1547 grab_mask->mod_mask,
1548 gdk_x11_get_default_root_xwindow (),
1552 XSync (spi_get_display (), False);
1553 update_failed = spi_clear_error_state ();
1554 if (update_failed) {
1555 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1560 grab_mask->pending_add = FALSE;
1561 grab_mask->pending_remove = FALSE;
1565 g_assert (grab_mask->ref_count <= 0);
1567 controller->keygrabs_list = g_list_delete_link (
1568 controller->keygrabs_list, l);
1570 spi_grab_mask_free (grab_mask);
1575 return ! update_failed;
1579 * Implemented GObject::finalize
1582 spi_device_event_controller_object_finalize (GObject *object)
1584 SpiDEController *controller;
1585 DEControllerPrivateData *private;
1586 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1589 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1591 /* disconnect any special listeners, get rid of outstanding keygrabs */
1592 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1595 if (controller->xevie_display != NULL)
1597 XevieEnd(controller->xevie_display);
1598 #ifdef SPI_KEYEVENT_DEBUG
1599 printf("XevieEnd(dpy) finished \n");
1604 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1605 if (private->xkb_desc)
1606 XkbFreeKeyboard (private->xkb_desc, 0, True);
1608 spi_device_event_controller_parent_class->finalize (object);
1612 * CORBA Accessibility::DEController::registerKeystrokeListener
1613 * method implementation
1615 static CORBA_boolean
1616 impl_register_keystroke_listener (PortableServer_Servant servant,
1617 const Accessibility_DeviceEventListener l,
1618 const Accessibility_KeySet *keys,
1619 const Accessibility_ControllerEventMask mask,
1620 const Accessibility_EventTypeSeq *type,
1621 const Accessibility_EventListenerMode *mode,
1622 CORBA_Environment *ev)
1624 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1625 bonobo_object_from_servant (servant));
1626 DEControllerKeyListener *dec_listener;
1628 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1629 (void *) l, (unsigned long) mask);
1631 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1632 return spi_controller_register_device_listener (
1633 controller, (DEControllerListener *) dec_listener, ev);
1638 * CORBA Accessibility::DEController::registerDeviceEventListener
1639 * method implementation
1641 static CORBA_boolean
1642 impl_register_device_listener (PortableServer_Servant servant,
1643 const Accessibility_DeviceEventListener l,
1644 const Accessibility_EventTypeSeq *event_types,
1645 CORBA_Environment *ev)
1647 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1648 bonobo_object_from_servant (servant));
1649 DEControllerListener *dec_listener;
1651 dec_listener = spi_dec_listener_new (l, event_types, ev);
1652 return spi_controller_register_device_listener (
1653 controller, (DEControllerListener *) dec_listener, ev);
1657 CORBA_Environment *ev;
1658 DEControllerListener *listener;
1659 } RemoveListenerClosure;
1661 static SpiReEntrantContinue
1662 remove_listener_cb (GList * const *list,
1665 DEControllerListener *listener = (*list)->data;
1666 RemoveListenerClosure *ctx = user_data;
1668 if (CORBA_Object_is_equivalent (ctx->listener->object,
1669 listener->object, ctx->ev))
1671 spi_re_entrant_list_delete_link (list);
1672 spi_dec_listener_free (listener, ctx->ev);
1675 return SPI_RE_ENTRANT_CONTINUE;
1678 static SpiReEntrantContinue
1679 copy_key_listener_cb (GList * const *list,
1682 DEControllerKeyListener *key_listener = (*list)->data;
1683 RemoveListenerClosure *ctx = user_data;
1685 if (CORBA_Object_is_equivalent (ctx->listener->object,
1686 key_listener->listener.object, ctx->ev))
1688 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1689 DEControllerKeyListener *ctx_key_listener =
1690 (DEControllerKeyListener *) ctx->listener;
1691 CORBA_free (ctx_key_listener->keys);
1692 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1695 return SPI_RE_ENTRANT_CONTINUE;
1699 spi_deregister_controller_device_listener (SpiDEController *controller,
1700 DEControllerListener *listener,
1701 CORBA_Environment *ev)
1703 RemoveListenerClosure ctx;
1706 ctx.listener = listener;
1708 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1709 remove_listener_cb, &ctx);
1713 spi_deregister_controller_key_listener (SpiDEController *controller,
1714 DEControllerKeyListener *key_listener,
1715 CORBA_Environment *ev)
1717 RemoveListenerClosure ctx;
1720 ctx.listener = (DEControllerListener *) key_listener;
1722 /* special case, copy keyset from existing controller list entry */
1723 if (key_listener->keys->_length == 0)
1725 spi_re_entrant_list_foreach (&controller->key_listeners,
1726 copy_key_listener_cb, &ctx);
1729 spi_controller_deregister_global_keygrabs (controller, key_listener);
1731 spi_re_entrant_list_foreach (&controller->key_listeners,
1732 remove_listener_cb, &ctx);
1737 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1738 * method implementation
1741 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1742 const Accessibility_DeviceEventListener l,
1743 const Accessibility_KeySet *keys,
1744 const Accessibility_ControllerEventMask mask,
1745 const Accessibility_EventTypeSeq *type,
1746 CORBA_Environment *ev)
1748 DEControllerKeyListener *key_listener;
1749 SpiDEController *controller;
1751 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1753 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1755 #ifdef SPI_DEREGISTER_DEBUG
1756 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1757 (void *) l, (unsigned long) mask->value);
1760 spi_deregister_controller_key_listener (controller, key_listener, ev);
1762 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1766 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1767 * method implementation
1770 impl_deregister_device_listener (PortableServer_Servant servant,
1771 const Accessibility_DeviceEventListener l,
1772 const Accessibility_EventTypeSeq *event_types,
1773 CORBA_Environment *ev)
1775 SpiDEController *controller;
1776 DEControllerListener *listener =
1777 spi_dec_listener_new (l, event_types, ev);
1779 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1781 spi_deregister_controller_device_listener (controller, listener, ev);
1783 spi_dec_listener_free (listener, ev);
1786 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1788 unsigned int retval = 0;
1789 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1790 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1792 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1793 retval = XkbGetSlowKeysDelay (spi_get_display (),
1794 XkbUseCoreKbd, &bounce_delay);
1796 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1798 Status s = XkbGetControls (spi_get_display (),
1799 XkbAllControlsMask, priv->xkb_desc);
1802 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1803 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1808 #ifdef SPI_XKB_DEBUG
1809 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1814 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1816 unsigned int retval = 0;
1817 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1818 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1820 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1821 retval = XkbGetBounceKeysDelay (spi_get_display (),
1822 XkbUseCoreKbd, &bounce_delay);
1824 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1826 Status s = XkbGetControls (spi_get_display (),
1827 XkbAllControlsMask, priv->xkb_desc);
1830 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1831 retval = priv->xkb_desc->ctrls->debounce_delay;
1836 #ifdef SPI_XKB_DEBUG
1837 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1843 dec_synth_keycode_press (SpiDEController *controller,
1844 unsigned int keycode)
1846 unsigned int time = CurrentTime;
1847 unsigned int bounce_delay;
1848 unsigned int elapsed_msec;
1850 DEControllerPrivateData *priv =
1851 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1852 spi_dec_private_quark);
1853 if (keycode == priv->last_release_keycode)
1855 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
1858 gettimeofday (&tv, NULL);
1860 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1861 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1862 #ifdef SPI_XKB_DEBUG
1863 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1864 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
1866 #ifdef THIS_IS_BROKEN
1867 if (elapsed_msec < bounce_delay)
1868 time = bounce_delay - elapsed_msec + 1;
1870 time = bounce_delay + 10;
1871 /* fudge for broken XTest */
1873 #ifdef SPI_XKB_DEBUG
1874 fprintf (stderr, "waiting %d ms\n", time);
1878 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1879 priv->last_press_keycode = keycode;
1880 XSync (spi_get_display (), False);
1881 gettimeofday (&priv->last_press_time, NULL);
1886 dec_synth_keycode_release (SpiDEController *controller,
1887 unsigned int keycode)
1889 unsigned int time = CurrentTime;
1890 unsigned int slow_delay;
1891 unsigned int elapsed_msec;
1893 DEControllerPrivateData *priv =
1894 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1895 spi_dec_private_quark);
1896 if (keycode == priv->last_press_keycode)
1898 slow_delay = dec_xkb_get_slowkeys_delay (controller);
1901 gettimeofday (&tv, NULL);
1903 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1904 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1905 #ifdef SPI_XKB_DEBUG
1906 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1907 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
1909 #ifdef THIS_IS_BROKEN_DUNNO_WHY
1910 if (elapsed_msec < slow_delay)
1911 time = slow_delay - elapsed_msec + 1;
1913 time = slow_delay + 10;
1914 /* our XTest seems broken, we have to add slop as above */
1916 #ifdef SPI_XKB_DEBUG
1917 fprintf (stderr, "waiting %d ms\n", time);
1921 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1922 priv->last_release_keycode = keycode;
1923 XSync (spi_get_display (), False);
1924 gettimeofday (&priv->last_release_time, NULL);
1929 dec_get_modifier_state (SpiDEController *controller)
1931 return mouse_mask_state;
1935 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
1937 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1938 modifiers, modifiers);
1942 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
1944 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1949 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
1951 /* TODO: table lookups within a range, for various code pages! */
1952 KeySym keysym = NoSymbol;
1954 if (unichar >= 0x20 && unichar < 0x7f) { /* Basic Latin/ASCII */
1955 keysym = (KeySym) unichar;
1957 else if (unichar >= 0xa0 && unichar <= 0xff) { /* Latin 1 extensions */
1958 keysym = (KeySym) unichar;
1960 else if (unichar >= 0x100 && unichar <= 0x233) { /* unfortunately the mapping gets nasty for Latin-2 and 3... help! */
1963 else if (unichar >= 0x7c1 && unichar <= 0x3a1) { /* let's try Greek anyway... */
1964 keysym = (KeySym) (0x391 + (unichar - 0x7c1));
1966 else if (unichar >= 0x3a3 && unichar <= 0x3a9) { /* let's try Greek anyway... */
1967 keysym = (KeySym) (0x7d2 + (unichar - 0x3a3));
1969 else if (unichar >= 0x3b1 && unichar <= 0x3c1) { /* let's try Greek anyway... */
1970 keysym = (KeySym) (0x7e1 + (unichar - 0x3b1));
1972 else if (unichar == 0x3c2) {
1973 keysym = (KeySym) 0x7f3; /* XK_Greek_finalsmallsigma; */
1975 else if (unichar >= 0x3c3 && unichar <= 0x3c9) { /* let's try Greek anyway... */
1976 keysym = (KeySym) (0x7f2 + (unichar - 0x3c2));
1978 else if (unichar >= 0x5d0 && unichar <= 0x5ea) { /* Hebrew basics */
1979 /* probably broken :-) */
1980 keysym = (KeySym) (0xce0 + (unichar - 0x5d0));
1982 else if (unichar >= 0x30a1 && unichar <= 0x30ab) { /* partial katakana support */
1983 /* TODO: complete! */
1984 keysym = (KeySym) (0x4b1 + (unichar - 0x30a1)/2);
1986 else if (unichar >= 0x20a0 && unichar <= 0x20ac) { /* currency */
1987 keysym = (KeySym) unichar; /* how convenient ;-) */
1993 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
1995 KeyCode key_synth_code;
1996 unsigned int modifiers, synth_mods, lock_mods;
1998 key_synth_code = keycode_for_keysym (keysym, &synth_mods);
2000 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2002 /* TODO: set the modifiers accordingly! */
2003 modifiers = dec_get_modifier_state (controller);
2004 /* side-effect; we may unset mousebutton modifiers here! */
2006 if (synth_mods != modifiers) {
2007 lock_mods = synth_mods & ~modifiers;
2008 dec_lock_modifiers (controller, lock_mods);
2010 dec_synth_keycode_press (controller, key_synth_code);
2011 dec_synth_keycode_release (controller, key_synth_code);
2012 if (synth_mods != modifiers)
2013 dec_unlock_modifiers (controller, lock_mods);
2019 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
2021 /* probably we need to create and inject an XIM handler eventually. */
2022 /* for now, try to match the string to existing
2023 * keycode+modifier states.
2027 gunichar unichar = 0;
2029 gboolean retval = TRUE;
2032 maxlen = strlen (keystring);
2033 keysyms = g_new0 (KeySym, maxlen);
2034 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2039 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2041 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2046 mbytes = g_unichar_to_utf8 (unichar, bytes);
2047 bytes[mbytes] = '\0';
2049 fprintf (stderr, "[unichar %s]", bytes);
2051 keysym = dec_keysym_for_unichar (controller, unichar);
2052 if (keysym == NoSymbol) {
2054 fprintf (stderr, "no keysym for %s", bytes);
2059 keysyms[i++] = keysym;
2060 keystring = g_utf8_next_char (keystring);
2063 for (i = 0; keysyms[i]; ++i) {
2064 if (!dec_synth_keysym (controller, keysyms[i])) {
2066 fprintf (stderr, "could not synthesize %c\n",
2081 * CORBA Accessibility::DEController::registerKeystrokeListener
2082 * method implementation
2085 impl_generate_keyboard_event (PortableServer_Servant servant,
2086 const CORBA_long keycode,
2087 const CORBA_char *keystring,
2088 const Accessibility_KeySynthType synth_type,
2089 CORBA_Environment *ev)
2091 SpiDEController *controller =
2092 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2093 long key_synth_code;
2097 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2098 (long) keycode, (int) synth_type);
2100 /* TODO: hide/wrap/remove X dependency */
2103 * TODO: when initializing, query for XTest extension before using,
2104 * and fall back to XSendEvent() if XTest is not available.
2107 gdk_error_trap_push ();
2108 key_synth_code = keycode;
2112 case Accessibility_KEY_PRESS:
2113 dec_synth_keycode_press (controller, keycode);
2115 case Accessibility_KEY_PRESSRELEASE:
2116 dec_synth_keycode_press (controller, keycode);
2117 case Accessibility_KEY_RELEASE:
2118 dec_synth_keycode_release (controller, keycode);
2120 case Accessibility_KEY_SYM:
2121 #ifdef SPI_XKB_DEBUG
2122 fprintf (stderr, "KeySym synthesis\n");
2125 * note: we are using long for 'keycode'
2126 * in our arg list; it can contain either
2127 * a keycode or a keysym.
2129 dec_synth_keysym (controller, (KeySym) keycode);
2131 case Accessibility_KEY_STRING:
2132 if (!dec_synth_keystring (controller, keystring))
2133 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2137 if (gdk_error_trap_pop ())
2139 DBG (-1, g_warning ("Error emitting keystroke"));
2141 if (synth_type == Accessibility_KEY_SYM) {
2145 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2147 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2149 spi_dec_clear_unlatch_pending (controller);
2153 /* Accessibility::DEController::generateMouseEvent */
2155 impl_generate_mouse_event (PortableServer_Servant servant,
2158 const CORBA_char *eventName,
2159 CORBA_Environment *ev)
2162 gboolean error = FALSE;
2163 Display *display = spi_get_display ();
2165 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2166 eventName, (long int) x, (long int) y);
2168 switch (eventName[0])
2171 switch (eventName[1])
2173 /* TODO: check number of buttons before parsing */
2194 if (x != -1 && y != -1)
2196 XTestFakeMotionEvent (display, DefaultScreen (display),
2199 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2200 if (eventName[2] == 'c')
2201 XTestFakeButtonEvent (display, button, FALSE, 1);
2202 else if (eventName[2] == 'd')
2204 XTestFakeButtonEvent (display, button, FALSE, 1);
2205 XTestFakeButtonEvent (display, button, TRUE, 2);
2206 XTestFakeButtonEvent (display, button, FALSE, 3);
2210 case 'r': /* relative motion */
2211 XTestFakeRelativeMotionEvent (display, x, y, 0);
2213 case 'a': /* absolute motion */
2214 XTestFakeMotionEvent (display, DefaultScreen (display),
2220 /* Accessibility::DEController::notifyListenersSync */
2221 static CORBA_boolean
2222 impl_notify_listeners_sync (PortableServer_Servant servant,
2223 const Accessibility_DeviceEvent *event,
2224 CORBA_Environment *ev)
2226 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2227 bonobo_object_from_servant (servant));
2229 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2230 controller, (int) event->id);
2232 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
2233 CORBA_TRUE : CORBA_FALSE;
2236 /* Accessibility::DEController::notifyListenersAsync */
2238 impl_notify_listeners_async (PortableServer_Servant servant,
2239 const Accessibility_DeviceEvent *event,
2240 CORBA_Environment *ev)
2242 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2243 bonobo_object_from_servant (servant));
2245 fprintf (stderr, "notifying listeners asynchronously\n");
2247 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
2251 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2253 GObjectClass * object_class = (GObjectClass *) klass;
2254 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2256 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2258 object_class->finalize = spi_device_event_controller_object_finalize;
2260 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2261 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2262 epv->registerDeviceEventListener = impl_register_device_listener;
2263 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2264 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2265 epv->generateMouseEvent = impl_generate_mouse_event;
2266 epv->notifyListenersSync = impl_notify_listeners_sync;
2267 epv->notifyListenersAsync = impl_notify_listeners_async;
2269 if (!spi_dec_private_quark)
2270 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2274 Bool isEvent(dpy,event,arg)
2283 handle_io (GIOChannel *source,
2284 GIOCondition condition,
2287 SpiDEController *controller = (SpiDEController *) data;
2288 gboolean is_consumed = FALSE;
2291 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2293 if (ev.type == KeyPress || ev.type == KeyRelease)
2294 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2297 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2302 #endif /* HAVE_XEVIE */
2305 spi_device_event_controller_init (SpiDEController *device_event_controller)
2310 #endif /* HAVE_XEVIE */
2312 DEControllerPrivateData *private;
2313 device_event_controller->key_listeners = NULL;
2314 device_event_controller->mouse_listeners = NULL;
2315 device_event_controller->keygrabs_list = NULL;
2316 device_event_controller->xevie_display = NULL;
2319 device_event_controller->xevie_display = XOpenDisplay(NULL);
2321 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2323 #ifdef SPI_KEYEVENT_DEBUG
2324 fprintf (stderr, "XevieStart() success \n");
2326 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2328 fd = ConnectionNumber(device_event_controller->xevie_display);
2329 ioc = g_io_channel_unix_new (fd);
2330 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2331 g_io_channel_unref (ioc);
2335 device_event_controller->xevie_display = NULL;
2336 #ifdef SPI_KEYEVENT_DEBUG
2337 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2340 #endif /* HAVE_XEVIE */
2342 private = g_new0 (DEControllerPrivateData, 1);
2343 gettimeofday (&private->last_press_time, NULL);
2344 gettimeofday (&private->last_release_time, NULL);
2345 g_object_set_qdata (G_OBJECT (device_event_controller),
2346 spi_dec_private_quark,
2348 spi_controller_register_with_devices (device_event_controller);
2352 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2353 const XEvent *event)
2355 CORBA_Environment ev;
2356 Accessibility_DeviceEvent key_event;
2358 g_assert (event->type == KeyPress || event->type == KeyRelease);
2360 CORBA_exception_init (&ev);
2362 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2364 if (controller->xevie_display == NULL)
2365 spi_controller_update_key_grabs (controller, &key_event);
2367 /* relay to listeners, and decide whether to consume it or not */
2368 return spi_controller_notify_keylisteners (controller, &key_event, CORBA_TRUE, &ev);
2372 spi_device_event_controller_new (SpiRegistry *registry)
2374 SpiDEController *retval = g_object_new (
2375 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2377 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2378 BONOBO_OBJECT (registry)));
2380 spi_dec_init_mouse_listener (registry);
2381 /* TODO: kill mouse listener on finalize */
2385 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2386 Accessibility_DeviceEventController,
2388 spi_device_event_controller)