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 (GdkEvent *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 Mumlock 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 if (mask == SPI_KEYMASK_NUMLOCK) {
581 mask = _numlock_physical_mask;
586 static DEControllerKeyListener *
587 spi_dec_key_listener_new (CORBA_Object l,
588 const Accessibility_KeySet *keys,
589 const Accessibility_ControllerEventMask mask,
590 const Accessibility_EventTypeSeq *typeseq,
591 const Accessibility_EventListenerMode *mode,
592 CORBA_Environment *ev)
594 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
595 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
596 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
597 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
598 key_listener->mask = spi_dec_translate_mask (mask);
599 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
601 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
603 key_listener->mode = NULL;
606 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
607 (unsigned int) key_listener->mask,
608 (int) (mode ? mode->global : 0),
609 (void *) key_listener->keys,
610 (int) (key_listener->keys ? key_listener->keys->_length : 0));
616 static DEControllerListener *
617 spi_dec_listener_new (CORBA_Object l,
618 const Accessibility_EventTypeSeq *typeseq,
619 CORBA_Environment *ev)
621 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
622 listener->object = bonobo_object_dup_ref (l, ev);
623 listener->type = SPI_DEVICE_TYPE_MOUSE;
624 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
628 static DEControllerListener *
629 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
631 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
633 CORBA_Object_duplicate (listener->object, ev);
634 clone->type = listener->type;
635 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
639 static DEControllerKeyListener *
640 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
642 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
643 clone->listener.object =
644 CORBA_Object_duplicate (key_listener->listener.object, ev);
645 clone->listener.type = SPI_DEVICE_TYPE_KBD;
646 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
647 clone->mask = key_listener->mask;
648 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
649 if (key_listener->mode)
650 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
657 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
659 CORBA_free (key_listener->listener.typeseq);
660 CORBA_free (key_listener->keys);
661 g_free (key_listener);
665 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
667 CORBA_Object_release (clone->listener.object, ev);
668 spi_key_listener_data_free (clone, ev);
672 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
674 CORBA_Object_release (clone->object, ev);
675 CORBA_free (clone->typeseq);
680 spi_dec_listener_free (DEControllerListener *listener,
681 CORBA_Environment *ev)
683 bonobo_object_release_unref (listener->object, ev);
684 if (listener->type == SPI_DEVICE_TYPE_KBD)
685 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
689 _register_keygrab (SpiDEController *controller,
690 DEControllerGrabMask *grab_mask)
694 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
695 spi_grab_mask_compare_values);
698 DEControllerGrabMask *cur_mask = l->data;
700 cur_mask->ref_count++;
701 if (cur_mask->pending_remove)
703 cur_mask->pending_remove = FALSE;
708 controller->keygrabs_list =
709 g_list_prepend (controller->keygrabs_list,
710 spi_grab_mask_clone (grab_mask));
715 _deregister_keygrab (SpiDEController *controller,
716 DEControllerGrabMask *grab_mask)
720 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
721 spi_grab_mask_compare_values);
725 DEControllerGrabMask *cur_mask = l->data;
727 cur_mask->ref_count--;
728 if (cur_mask->ref_count <= 0)
730 cur_mask->pending_remove = TRUE;
735 DBG (1, g_warning ("De-registering non-existant grab"));
740 handle_keygrab (SpiDEController *controller,
741 DEControllerKeyListener *key_listener,
742 void (*process_cb) (SpiDEController *controller,
743 DEControllerGrabMask *grab_mask))
745 DEControllerGrabMask grab_mask = { 0 };
747 grab_mask.mod_mask = key_listener->mask;
748 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
750 grab_mask.key_val = AnyKey;
752 fprintf (stderr, "AnyKey grab!");
754 process_cb (controller, &grab_mask);
760 for (i = 0; i < key_listener->keys->_length; ++i)
762 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
763 long int key_val = keydef.keysym;
764 /* X Grabs require keycodes, not keysyms */
765 if (keydef.keystring && keydef.keystring[0])
767 key_val = XStringToKeysym(keydef.keystring);
771 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
775 key_val = keydef.keycode;
777 grab_mask.key_val = key_val;
778 process_cb (controller, &grab_mask);
784 spi_controller_register_global_keygrabs (SpiDEController *controller,
785 DEControllerKeyListener *key_listener)
787 handle_keygrab (controller, key_listener, _register_keygrab);
788 if (controller->xevie_display == NULL)
789 return spi_controller_update_key_grabs (controller, NULL);
795 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
796 DEControllerKeyListener *key_listener)
798 handle_keygrab (controller, key_listener, _deregister_keygrab);
799 if (controller->xevie_display == NULL)
800 spi_controller_update_key_grabs (controller, NULL);
804 spi_controller_register_device_listener (SpiDEController *controller,
805 DEControllerListener *listener,
806 CORBA_Environment *ev)
808 DEControllerKeyListener *key_listener;
810 switch (listener->type) {
811 case SPI_DEVICE_TYPE_KBD:
812 key_listener = (DEControllerKeyListener *) listener;
814 controller->key_listeners = g_list_prepend (controller->key_listeners,
816 if (key_listener->mode->global)
818 return spi_controller_register_global_keygrabs (controller, key_listener);
823 case SPI_DEVICE_TYPE_MOUSE:
824 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
827 DBG (1, g_warning ("listener registration for unknown device type.\n"));
834 spi_controller_notify_mouselisteners (SpiDEController *controller,
835 const Accessibility_DeviceEvent *event,
836 CORBA_Environment *ev)
839 GSList *notify = NULL, *l2;
840 GList **listeners = &controller->mouse_listeners;
841 gboolean is_consumed;
842 gboolean found = FALSE;
849 for (l = *listeners; l; l = l->next)
851 DEControllerListener *listener = l->data;
853 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
855 Accessibility_DeviceEventListener ls = listener->object;
857 if (ls != CORBA_OBJECT_NIL)
859 /* we clone (don't dup) the listener, to avoid refcount inc. */
860 notify = g_slist_prepend (notify,
861 spi_listener_clone (listener, ev));
867 #ifdef SPI_KEYEVENT_DEBUG
870 g_print ("no match for event\n");
875 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
877 DEControllerListener *listener = l2->data;
878 Accessibility_DeviceEventListener ls = listener->object;
880 CORBA_exception_init (ev);
881 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
885 DBG (2, g_warning ("error notifying listener, removing it\n"));
886 spi_deregister_controller_device_listener (controller, listener,
888 CORBA_exception_free (ev);
891 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
894 for (; l2; l2 = l2->next)
896 DEControllerListener *listener = l2->data;
897 spi_listener_clone_free (listener, ev);
898 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
901 g_slist_free (notify);
904 if (is_consumed) g_message ("consumed\n");
910 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
913 Accessibility_Event e;
914 Accessibility_DeviceEvent mouse_e;
915 CORBA_Environment ev;
916 gchar event_name[24];
917 gboolean is_consumed = FALSE;
918 gboolean xkb_mod_unlatch_occurred;
919 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
921 int button = xbutton_event->button;
923 unsigned int mouse_button_state = xbutton_event->state;
928 mouse_button_state |= Button1Mask;
931 mouse_button_state |= Button2Mask;
934 mouse_button_state |= Button3Mask;
937 mouse_button_state |= Button4Mask;
940 mouse_button_state |= Button5Mask;
944 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
945 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
948 fprintf (stderr, "mouse button %d %s (%x)\n",
949 xbutton_event->button,
950 (xevent->type == ButtonPress) ? "Press" : "Release",
953 snprintf (event_name, 22, "mouse:button:%d%c", button,
954 (xevent->type == ButtonPress) ? 'p' : 'r');
956 /* TODO: FIXME distinguish between physical and logical buttons */
957 mouse_e.type = (xevent->type == ButtonPress) ?
958 Accessibility_BUTTON_PRESSED_EVENT :
959 Accessibility_BUTTON_RELEASED_EVENT;
961 mouse_e.hw_code = button;
962 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
963 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
964 mouse_e.event_string = "";
965 mouse_e.is_text = CORBA_FALSE;
966 if ((mouse_button_state & mouse_button_mask) !=
967 (mouse_mask_state & mouse_button_mask))
969 if ((mouse_mask_state & key_modifier_mask) !=
970 (mouse_button_state & key_modifier_mask))
971 spi_dec_emit_modifier_event (controller,
972 mouse_mask_state, mouse_button_state);
973 mouse_mask_state = mouse_button_state;
975 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
976 e.type = CORBA_string_dup (event_name);
977 e.source = BONOBO_OBJREF (controller->registry->desktop);
978 e.detail1 = last_mouse_pos->x;
979 e.detail2 = last_mouse_pos->y;
980 spi_init_any_nil (&e.any_data);
981 CORBA_exception_init (&ev);
983 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
988 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
989 xevent->type == ButtonRelease);
991 /* if client wants to consume this event, and XKB latch state was
992 * unset by this button event, we reset it
994 if (is_consumed && xkb_mod_unlatch_occurred)
995 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
997 XAllowEvents (spi_get_display (),
998 (is_consumed) ? SyncPointer : ReplayPointer,
1002 static GdkFilterReturn
1003 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1005 XEvent *xevent = gdk_xevent;
1006 SpiDEController *controller;
1007 DEControllerPrivateData *priv;
1008 Display *display = spi_get_display ();
1009 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1010 priv = (DEControllerPrivateData *)
1011 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1013 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1015 if (controller->xevie_display == NULL)
1017 gboolean is_consumed =
1018 spi_device_event_controller_forward_key_event (controller, xevent);
1021 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
1024 wait_for_release_event (event, controller);
1025 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
1029 return GDK_FILTER_CONTINUE;
1031 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1033 spi_device_event_controller_forward_mouse_event (controller, xevent);
1035 if (xevent->type == priv->xkb_base_event_code)
1037 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1038 /* ugly but probably necessary...*/
1039 XSynchronize (spi_get_display (), TRUE);
1041 if (xkb_ev->xkb_type == XkbStateNotify)
1043 XkbStateNotifyEvent *xkb_snev =
1044 (XkbStateNotifyEvent *) xkb_ev;
1045 /* check the mouse, to catch mouse events grabbed by
1046 * another client; in case we should revert this XKB delatch
1048 if (!priv->pending_xkb_mod_relatch_mask)
1052 spi_dec_mouse_check (controller, &x, &y, &moved);
1054 /* we check again, since the previous call may have
1055 changed this flag */
1056 if (priv->pending_xkb_mod_relatch_mask)
1058 unsigned int feedback_mask;
1059 #ifdef SPI_XKB_DEBUG
1060 fprintf (stderr, "relatching %x\n",
1061 priv->pending_xkb_mod_relatch_mask);
1063 /* temporarily turn off the latch bell, if it's on */
1064 XkbGetControls (display,
1065 XkbAccessXFeedbackMask,
1067 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1068 if (feedback_mask & XkbAX_StickyKeysFBMask)
1070 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1072 priv->xkb_desc->ctrls->ax_options
1073 &= ~(XkbAX_StickyKeysFBMask);
1074 XkbChangeControls (display, priv->xkb_desc, &changes);
1076 /* TODO: account for lock as well as latch */
1077 XkbLatchModifiers (display,
1079 priv->pending_xkb_mod_relatch_mask,
1080 priv->pending_xkb_mod_relatch_mask);
1081 if (feedback_mask & XkbAX_StickyKeysFBMask)
1083 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1085 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1086 XkbChangeControls (display, priv->xkb_desc, &changes);
1088 #ifdef SPI_XKB_DEBUG
1089 fprintf (stderr, "relatched %x\n",
1090 priv->pending_xkb_mod_relatch_mask);
1092 priv->pending_xkb_mod_relatch_mask = 0;
1096 priv->xkb_latch_mask = xkb_snev->latched_mods;
1100 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1101 XSynchronize (spi_get_display (), FALSE);
1104 return GDK_FILTER_CONTINUE;
1108 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1110 if (error->error_code == BadAccess)
1112 g_message ("Could not complete key grab: grab already in use.\n");
1113 spi_error_code = BadAccess;
1118 return (*x_default_error_handler) (display, error);
1123 spi_controller_register_with_devices (SpiDEController *controller)
1125 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1126 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1127 /* FIXME: should check for extension first! */
1128 XTestGrabControl (spi_get_display (), True);
1130 /* calls to device-specific implementations and routines go here */
1131 /* register with: keyboard hardware code handler */
1132 /* register with: (translated) keystroke handler */
1134 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1135 &priv->xkb_major_extension_opcode,
1136 &priv->xkb_base_event_code,
1137 &priv->xkb_base_error_code, NULL, NULL);
1140 priv->xkb_desc = XkbGetMap (spi_get_display (), 0, XkbUseCoreKbd);
1141 XkbSelectEvents (spi_get_display (),
1143 XkbStateNotifyMask, XkbStateNotifyMask);
1144 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1148 gdk_window_add_filter (NULL, global_filter_fn, controller);
1150 gdk_window_set_events (gdk_get_default_root_window (),
1151 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1153 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1157 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1158 const Accessibility_DeviceEvent *key_event)
1165 g_print ("null key set!");
1169 len = key_set->_length;
1171 if (len == 0) /* special case, means "all keys/any key" */
1173 g_print ("anykey\n");
1177 for (i = 0; i < len; ++i)
1179 #ifdef SPI_KEYEVENT_DEBUG
1180 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1182 (int)key_set->_buffer[i].keysym,
1183 (int) key_set->_buffer[i].keycode,
1184 (int) key_event->id,
1185 (int) key_event->hw_code,
1186 key_event->event_string);
1188 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1192 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1196 if (key_event->event_string && key_event->event_string[0] &&
1197 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1207 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1208 const Accessibility_DeviceEvent *event)
1216 g_print ("null type seq!");
1220 len = type_seq->_length;
1222 if (len == 0) /* special case, means "all events/any event" */
1227 for (i = 0; i < len; ++i)
1230 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1231 (int) type_seq->_buffer[i], (int) event->type);
1233 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1243 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1244 DEControllerKeyListener *listener,
1245 CORBA_boolean is_system_global)
1247 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1248 spi_key_set_contains_key (listener->keys, key_event) &&
1249 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1250 (is_system_global == listener->mode->global))
1261 spi_controller_notify_keylisteners (SpiDEController *controller,
1262 const Accessibility_DeviceEvent *key_event,
1263 CORBA_boolean is_system_global,
1264 CORBA_Environment *ev)
1267 GSList *notify = NULL, *l2;
1268 GList **key_listeners = &controller->key_listeners;
1269 gboolean is_consumed;
1276 for (l = *key_listeners; l; l = l->next)
1278 DEControllerKeyListener *key_listener = l->data;
1280 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1282 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1284 if (ls != CORBA_OBJECT_NIL)
1286 /* we clone (don't dup) the listener, to avoid refcount inc. */
1287 notify = g_slist_prepend (notify,
1288 spi_key_listener_clone (key_listener, ev));
1293 #ifdef SPI_KEYEVENT_DEBUG
1296 g_print ("no match for event\n");
1300 is_consumed = FALSE;
1301 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1303 DEControllerKeyListener *key_listener = l2->data;
1304 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1306 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
1310 is_consumed = FALSE;
1311 spi_deregister_controller_key_listener (controller, key_listener,
1313 CORBA_exception_free (ev);
1316 spi_key_listener_clone_free (key_listener, ev);
1319 for (; l2; l2 = l2->next)
1321 DEControllerKeyListener *key_listener = l2->data;
1322 spi_key_listener_clone_free (key_listener, ev);
1323 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1326 g_slist_free (notify);
1329 if (is_consumed) g_message ("consumed\n");
1335 spi_clear_error_state ()
1337 gboolean retval = spi_error_code != 0;
1342 static Accessibility_DeviceEvent
1343 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1345 Accessibility_DeviceEvent key_event;
1347 const int cbuf_bytes = 20;
1348 char cbuf [cbuf_bytes+1];
1351 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1352 key_event.id = (CORBA_long)(keysym);
1353 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1354 if (((XEvent *) x_key_event)->type == KeyPress)
1356 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1360 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1362 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1363 key_event.is_text = CORBA_FALSE;
1367 key_event.event_string = CORBA_string_dup ("space");
1370 key_event.event_string = CORBA_string_dup ("Tab");
1373 key_event.event_string = CORBA_string_dup ("Backspace");
1376 key_event.event_string = CORBA_string_dup ("Return");
1379 key_event.event_string = CORBA_string_dup ("Home");
1382 key_event.event_string = CORBA_string_dup ("Page_Down");
1385 key_event.event_string = CORBA_string_dup ("Page_Up");
1388 key_event.event_string = CORBA_string_dup ("F1");
1391 key_event.event_string = CORBA_string_dup ("F2");
1394 key_event.event_string = CORBA_string_dup ("F3");
1397 key_event.event_string = CORBA_string_dup ("F4");
1400 key_event.event_string = CORBA_string_dup ("F5");
1403 key_event.event_string = CORBA_string_dup ("F6");
1406 key_event.event_string = CORBA_string_dup ("F7");
1409 key_event.event_string = CORBA_string_dup ("F8");
1412 key_event.event_string = CORBA_string_dup ("F9");
1415 key_event.event_string = CORBA_string_dup ("F10");
1418 key_event.event_string = CORBA_string_dup ("F11");
1421 key_event.event_string = CORBA_string_dup ("F12");
1424 key_event.event_string = CORBA_string_dup ("End");
1427 key_event.event_string = CORBA_string_dup ("Escape");
1430 key_event.event_string = CORBA_string_dup ("Up");
1433 key_event.event_string = CORBA_string_dup ("Down");
1436 key_event.event_string = CORBA_string_dup ("Left");
1439 key_event.event_string = CORBA_string_dup ("Right");
1445 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1446 key_event.event_string = CORBA_string_dup (cbuf);
1447 c = g_utf8_get_char_validated (cbuf, nbytes);
1448 if ((c > 0) && g_unichar_isprint (c))
1450 key_event.is_text = CORBA_TRUE;
1451 /* incorrect for some composed chars? */
1456 key_event.event_string = CORBA_string_dup ("");
1460 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1461 #ifdef SPI_KEYEVENT_DEBUG
1463 char *pressed_str = "pressed";
1464 char *released_str = "released";
1467 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1468 state_ptr = pressed_str;
1470 state_ptr = released_str;
1473 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1474 (unsigned long) keysym,
1476 keysym ? (int) keysym : '*',
1477 (int) x_key_event->state,
1478 key_event.event_string,
1479 key_event.event_string[0],
1480 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1484 fprintf (stderr, "%s%c\n",
1485 (x_key_event->state & Mod1Mask)?"Alt-":"",
1486 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1487 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1488 #endif /* SPI_DEBUG */
1493 spi_controller_update_key_grabs (SpiDEController *controller,
1494 Accessibility_DeviceEvent *recv)
1497 gboolean update_failed = FALSE;
1499 g_return_val_if_fail (controller != NULL, FALSE);
1502 * masks known to work with default RH 7.1+:
1503 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1504 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1505 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1506 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1508 * ControlMask grabs are broken, must be in use already
1510 for (l = controller->keygrabs_list; l; l = next)
1513 gboolean re_issue_grab;
1514 DEControllerGrabMask *grab_mask = l->data;
1518 re_issue_grab = recv &&
1519 (recv->modifiers & grab_mask->mod_mask) &&
1520 (grab_mask->key_val == keycode_for_keysym (recv->id, NULL));
1523 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1524 (long int) grab_mask->key_val,
1525 (long int) grab_mask->mod_mask,
1526 grab_mask->pending_add ? '+' : '.',
1527 grab_mask->pending_remove ? '-' : '.',
1528 re_issue_grab ? "re-issue": "");
1533 if (grab_mask->pending_add && grab_mask->pending_remove)
1537 else if (grab_mask->pending_remove)
1540 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1542 XUngrabKey (spi_get_display (),
1544 grab_mask->mod_mask,
1545 gdk_x11_get_default_root_xwindow ());
1549 else if (grab_mask->pending_add || re_issue_grab)
1553 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1555 XGrabKey (spi_get_display (),
1557 grab_mask->mod_mask,
1558 gdk_x11_get_default_root_xwindow (),
1562 XSync (spi_get_display (), False);
1563 update_failed = spi_clear_error_state ();
1564 if (update_failed) {
1565 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1570 grab_mask->pending_add = FALSE;
1571 grab_mask->pending_remove = FALSE;
1575 g_assert (grab_mask->ref_count <= 0);
1577 controller->keygrabs_list = g_list_delete_link (
1578 controller->keygrabs_list, l);
1580 spi_grab_mask_free (grab_mask);
1585 return ! update_failed;
1589 * Implemented GObject::finalize
1592 spi_device_event_controller_object_finalize (GObject *object)
1594 SpiDEController *controller;
1595 DEControllerPrivateData *private;
1596 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1599 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1601 /* disconnect any special listeners, get rid of outstanding keygrabs */
1602 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1605 if (controller->xevie_display != NULL)
1607 XevieEnd(controller->xevie_display);
1608 #ifdef SPI_KEYEVENT_DEBUG
1609 printf("XevieEnd(dpy) finished \n");
1614 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1615 if (private->xkb_desc)
1616 XkbFreeKeyboard (private->xkb_desc, 0, True);
1618 spi_device_event_controller_parent_class->finalize (object);
1622 * CORBA Accessibility::DEController::registerKeystrokeListener
1623 * method implementation
1625 static CORBA_boolean
1626 impl_register_keystroke_listener (PortableServer_Servant servant,
1627 const Accessibility_DeviceEventListener l,
1628 const Accessibility_KeySet *keys,
1629 const Accessibility_ControllerEventMask mask,
1630 const Accessibility_EventTypeSeq *type,
1631 const Accessibility_EventListenerMode *mode,
1632 CORBA_Environment *ev)
1634 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1635 bonobo_object_from_servant (servant));
1636 DEControllerKeyListener *dec_listener;
1638 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1639 (void *) l, (unsigned long) mask);
1641 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1642 return spi_controller_register_device_listener (
1643 controller, (DEControllerListener *) dec_listener, ev);
1648 * CORBA Accessibility::DEController::registerDeviceEventListener
1649 * method implementation
1651 static CORBA_boolean
1652 impl_register_device_listener (PortableServer_Servant servant,
1653 const Accessibility_DeviceEventListener l,
1654 const Accessibility_EventTypeSeq *event_types,
1655 CORBA_Environment *ev)
1657 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1658 bonobo_object_from_servant (servant));
1659 DEControllerListener *dec_listener;
1661 dec_listener = spi_dec_listener_new (l, event_types, ev);
1662 return spi_controller_register_device_listener (
1663 controller, (DEControllerListener *) dec_listener, ev);
1667 CORBA_Environment *ev;
1668 DEControllerListener *listener;
1669 } RemoveListenerClosure;
1671 static SpiReEntrantContinue
1672 remove_listener_cb (GList * const *list,
1675 DEControllerListener *listener = (*list)->data;
1676 RemoveListenerClosure *ctx = user_data;
1678 if (CORBA_Object_is_equivalent (ctx->listener->object,
1679 listener->object, ctx->ev))
1681 spi_re_entrant_list_delete_link (list);
1682 spi_dec_listener_free (listener, ctx->ev);
1685 return SPI_RE_ENTRANT_CONTINUE;
1688 static SpiReEntrantContinue
1689 copy_key_listener_cb (GList * const *list,
1692 DEControllerKeyListener *key_listener = (*list)->data;
1693 RemoveListenerClosure *ctx = user_data;
1695 if (CORBA_Object_is_equivalent (ctx->listener->object,
1696 key_listener->listener.object, ctx->ev))
1698 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1699 DEControllerKeyListener *ctx_key_listener =
1700 (DEControllerKeyListener *) ctx->listener;
1701 CORBA_free (ctx_key_listener->keys);
1702 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1705 return SPI_RE_ENTRANT_CONTINUE;
1709 spi_deregister_controller_device_listener (SpiDEController *controller,
1710 DEControllerListener *listener,
1711 CORBA_Environment *ev)
1713 RemoveListenerClosure ctx;
1716 ctx.listener = listener;
1718 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1719 remove_listener_cb, &ctx);
1723 spi_deregister_controller_key_listener (SpiDEController *controller,
1724 DEControllerKeyListener *key_listener,
1725 CORBA_Environment *ev)
1727 RemoveListenerClosure ctx;
1730 ctx.listener = (DEControllerListener *) key_listener;
1732 /* special case, copy keyset from existing controller list entry */
1733 if (key_listener->keys->_length == 0)
1735 spi_re_entrant_list_foreach (&controller->key_listeners,
1736 copy_key_listener_cb, &ctx);
1739 spi_controller_deregister_global_keygrabs (controller, key_listener);
1741 spi_re_entrant_list_foreach (&controller->key_listeners,
1742 remove_listener_cb, &ctx);
1747 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1748 * method implementation
1751 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1752 const Accessibility_DeviceEventListener l,
1753 const Accessibility_KeySet *keys,
1754 const Accessibility_ControllerEventMask mask,
1755 const Accessibility_EventTypeSeq *type,
1756 CORBA_Environment *ev)
1758 DEControllerKeyListener *key_listener;
1759 SpiDEController *controller;
1761 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1763 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1765 #ifdef SPI_DEREGISTER_DEBUG
1766 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1767 (void *) l, (unsigned long) mask->value);
1770 spi_deregister_controller_key_listener (controller, key_listener, ev);
1772 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1776 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1777 * method implementation
1780 impl_deregister_device_listener (PortableServer_Servant servant,
1781 const Accessibility_DeviceEventListener l,
1782 const Accessibility_EventTypeSeq *event_types,
1783 CORBA_Environment *ev)
1785 SpiDEController *controller;
1786 DEControllerListener *listener =
1787 spi_dec_listener_new (l, event_types, ev);
1789 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1791 spi_deregister_controller_device_listener (controller, listener, ev);
1793 spi_dec_listener_free (listener, ev);
1796 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1798 unsigned int retval = 0;
1799 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1800 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1802 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1803 retval = XkbGetSlowKeysDelay (spi_get_display (),
1804 XkbUseCoreKbd, &bounce_delay);
1806 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1808 Status s = XkbGetControls (spi_get_display (),
1809 XkbAllControlsMask, priv->xkb_desc);
1812 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1813 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1818 #ifdef SPI_XKB_DEBUG
1819 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1824 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1826 unsigned int retval = 0;
1827 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1828 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1830 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1831 retval = XkbGetBounceKeysDelay (spi_get_display (),
1832 XkbUseCoreKbd, &bounce_delay);
1834 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1836 Status s = XkbGetControls (spi_get_display (),
1837 XkbAllControlsMask, priv->xkb_desc);
1840 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1841 retval = priv->xkb_desc->ctrls->debounce_delay;
1846 #ifdef SPI_XKB_DEBUG
1847 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1853 dec_synth_keycode_press (SpiDEController *controller,
1854 unsigned int keycode)
1856 unsigned int time = CurrentTime;
1857 unsigned int bounce_delay;
1858 unsigned int elapsed_msec;
1860 DEControllerPrivateData *priv =
1861 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1862 spi_dec_private_quark);
1863 if (keycode == priv->last_release_keycode)
1865 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
1868 gettimeofday (&tv, NULL);
1870 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1871 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1872 #ifdef SPI_XKB_DEBUG
1873 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1874 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
1876 #ifdef THIS_IS_BROKEN
1877 if (elapsed_msec < bounce_delay)
1878 time = bounce_delay - elapsed_msec + 1;
1880 time = bounce_delay + 10;
1881 /* fudge for broken XTest */
1883 #ifdef SPI_XKB_DEBUG
1884 fprintf (stderr, "waiting %d ms\n", time);
1888 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1889 priv->last_press_keycode = keycode;
1890 XSync (spi_get_display (), False);
1891 gettimeofday (&priv->last_press_time, NULL);
1896 dec_synth_keycode_release (SpiDEController *controller,
1897 unsigned int keycode)
1899 unsigned int time = CurrentTime;
1900 unsigned int slow_delay;
1901 unsigned int elapsed_msec;
1903 DEControllerPrivateData *priv =
1904 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1905 spi_dec_private_quark);
1906 if (keycode == priv->last_press_keycode)
1908 slow_delay = dec_xkb_get_slowkeys_delay (controller);
1911 gettimeofday (&tv, NULL);
1913 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1914 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1915 #ifdef SPI_XKB_DEBUG
1916 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1917 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
1919 #ifdef THIS_IS_BROKEN_DUNNO_WHY
1920 if (elapsed_msec < slow_delay)
1921 time = slow_delay - elapsed_msec + 1;
1923 time = slow_delay + 10;
1924 /* our XTest seems broken, we have to add slop as above */
1926 #ifdef SPI_XKB_DEBUG
1927 fprintf (stderr, "waiting %d ms\n", time);
1931 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1932 priv->last_release_keycode = keycode;
1933 XSync (spi_get_display (), False);
1934 gettimeofday (&priv->last_release_time, NULL);
1939 dec_get_modifier_state (SpiDEController *controller)
1941 return mouse_mask_state;
1945 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
1947 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1948 modifiers, modifiers);
1952 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
1954 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1959 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
1961 return ucs2keysym ((long) unichar);
1965 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
1967 KeyCode key_synth_code;
1968 unsigned int modifiers, synth_mods, lock_mods;
1970 key_synth_code = keycode_for_keysym (keysym, &synth_mods);
1972 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1974 /* TODO: set the modifiers accordingly! */
1975 modifiers = dec_get_modifier_state (controller);
1976 /* side-effect; we may unset mousebutton modifiers here! */
1979 if (synth_mods != modifiers) {
1980 lock_mods = synth_mods & ~modifiers;
1981 dec_lock_modifiers (controller, lock_mods);
1983 dec_synth_keycode_press (controller, key_synth_code);
1984 dec_synth_keycode_release (controller, key_synth_code);
1985 if (synth_mods != modifiers)
1986 dec_unlock_modifiers (controller, lock_mods);
1992 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
1994 /* probably we need to create and inject an XIM handler eventually. */
1995 /* for now, try to match the string to existing
1996 * keycode+modifier states.
2000 gunichar unichar = 0;
2002 gboolean retval = TRUE;
2005 maxlen = strlen (keystring);
2006 keysyms = g_new0 (KeySym, maxlen);
2007 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2012 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2014 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2019 mbytes = g_unichar_to_utf8 (unichar, bytes);
2020 bytes[mbytes] = '\0';
2022 fprintf (stderr, "[unichar %s]", bytes);
2024 keysym = dec_keysym_for_unichar (controller, unichar);
2025 if (keysym == NoSymbol) {
2027 fprintf (stderr, "no keysym for %s", bytes);
2032 keysyms[i++] = keysym;
2033 keystring = g_utf8_next_char (keystring);
2036 for (i = 0; keysyms[i]; ++i) {
2037 if (!dec_synth_keysym (controller, keysyms[i])) {
2039 fprintf (stderr, "could not synthesize %c\n",
2054 * CORBA Accessibility::DEController::registerKeystrokeListener
2055 * method implementation
2058 impl_generate_keyboard_event (PortableServer_Servant servant,
2059 const CORBA_long keycode,
2060 const CORBA_char *keystring,
2061 const Accessibility_KeySynthType synth_type,
2062 CORBA_Environment *ev)
2064 SpiDEController *controller =
2065 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2066 long key_synth_code;
2070 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2071 (long) keycode, (int) synth_type);
2073 /* TODO: hide/wrap/remove X dependency */
2076 * TODO: when initializing, query for XTest extension before using,
2077 * and fall back to XSendEvent() if XTest is not available.
2080 gdk_error_trap_push ();
2081 key_synth_code = keycode;
2085 case Accessibility_KEY_PRESS:
2086 dec_synth_keycode_press (controller, keycode);
2088 case Accessibility_KEY_PRESSRELEASE:
2089 dec_synth_keycode_press (controller, keycode);
2090 case Accessibility_KEY_RELEASE:
2091 dec_synth_keycode_release (controller, keycode);
2093 case Accessibility_KEY_SYM:
2094 #ifdef SPI_XKB_DEBUG
2095 fprintf (stderr, "KeySym synthesis\n");
2098 * note: we are using long for 'keycode'
2099 * in our arg list; it can contain either
2100 * a keycode or a keysym.
2102 dec_synth_keysym (controller, (KeySym) keycode);
2104 case Accessibility_KEY_STRING:
2105 if (!dec_synth_keystring (controller, keystring))
2106 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2110 if (gdk_error_trap_pop ())
2112 DBG (-1, g_warning ("Error emitting keystroke"));
2114 if (synth_type == Accessibility_KEY_SYM) {
2118 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2120 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2122 spi_dec_clear_unlatch_pending (controller);
2126 /* Accessibility::DEController::generateMouseEvent */
2128 impl_generate_mouse_event (PortableServer_Servant servant,
2131 const CORBA_char *eventName,
2132 CORBA_Environment *ev)
2135 gboolean error = FALSE;
2136 Display *display = spi_get_display ();
2138 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2139 eventName, (long int) x, (long int) y);
2141 switch (eventName[0])
2144 switch (eventName[1])
2146 /* TODO: check number of buttons before parsing */
2167 if (x != -1 && y != -1)
2169 XTestFakeMotionEvent (display, DefaultScreen (display),
2172 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2173 if (eventName[2] == 'c')
2174 XTestFakeButtonEvent (display, button, FALSE, 1);
2175 else if (eventName[2] == 'd')
2177 XTestFakeButtonEvent (display, button, FALSE, 1);
2178 XTestFakeButtonEvent (display, button, TRUE, 2);
2179 XTestFakeButtonEvent (display, button, FALSE, 3);
2183 case 'r': /* relative motion */
2184 XTestFakeRelativeMotionEvent (display, x, y, 0);
2186 case 'a': /* absolute motion */
2187 XTestFakeMotionEvent (display, DefaultScreen (display),
2193 /* Accessibility::DEController::notifyListenersSync */
2194 static CORBA_boolean
2195 impl_notify_listeners_sync (PortableServer_Servant servant,
2196 const Accessibility_DeviceEvent *event,
2197 CORBA_Environment *ev)
2199 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2200 bonobo_object_from_servant (servant));
2202 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2203 controller, (int) event->id);
2205 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
2206 CORBA_TRUE : CORBA_FALSE;
2209 /* Accessibility::DEController::notifyListenersAsync */
2211 impl_notify_listeners_async (PortableServer_Servant servant,
2212 const Accessibility_DeviceEvent *event,
2213 CORBA_Environment *ev)
2215 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2216 bonobo_object_from_servant (servant));
2218 fprintf (stderr, "notifying listeners asynchronously\n");
2220 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
2224 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2226 GObjectClass * object_class = (GObjectClass *) klass;
2227 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2229 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2231 object_class->finalize = spi_device_event_controller_object_finalize;
2233 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2234 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2235 epv->registerDeviceEventListener = impl_register_device_listener;
2236 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2237 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2238 epv->generateMouseEvent = impl_generate_mouse_event;
2239 epv->notifyListenersSync = impl_notify_listeners_sync;
2240 epv->notifyListenersAsync = impl_notify_listeners_async;
2242 if (!spi_dec_private_quark)
2243 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2247 Bool isEvent(dpy,event,arg)
2256 handle_io (GIOChannel *source,
2257 GIOCondition condition,
2260 SpiDEController *controller = (SpiDEController *) data;
2261 gboolean is_consumed = FALSE;
2264 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2266 if (ev.type == KeyPress || ev.type == KeyRelease)
2267 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2270 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2275 #endif /* HAVE_XEVIE */
2278 spi_device_event_controller_init (SpiDEController *device_event_controller)
2283 #endif /* HAVE_XEVIE */
2285 DEControllerPrivateData *private;
2286 device_event_controller->key_listeners = NULL;
2287 device_event_controller->mouse_listeners = NULL;
2288 device_event_controller->keygrabs_list = NULL;
2289 device_event_controller->xevie_display = NULL;
2292 device_event_controller->xevie_display = XOpenDisplay(NULL);
2294 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2296 #ifdef SPI_KEYEVENT_DEBUG
2297 fprintf (stderr, "XevieStart() success \n");
2299 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2301 fd = ConnectionNumber(device_event_controller->xevie_display);
2302 ioc = g_io_channel_unix_new (fd);
2303 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2304 g_io_channel_unref (ioc);
2308 device_event_controller->xevie_display = NULL;
2309 #ifdef SPI_KEYEVENT_DEBUG
2310 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2313 #endif /* HAVE_XEVIE */
2315 private = g_new0 (DEControllerPrivateData, 1);
2316 gettimeofday (&private->last_press_time, NULL);
2317 gettimeofday (&private->last_release_time, NULL);
2318 g_object_set_qdata (G_OBJECT (device_event_controller),
2319 spi_dec_private_quark,
2321 spi_controller_register_with_devices (device_event_controller);
2325 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2326 const XEvent *event)
2328 CORBA_Environment ev;
2329 Accessibility_DeviceEvent key_event;
2331 g_assert (event->type == KeyPress || event->type == KeyRelease);
2333 CORBA_exception_init (&ev);
2335 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2337 if (controller->xevie_display == NULL)
2338 spi_controller_update_key_grabs (controller, &key_event);
2340 /* relay to listeners, and decide whether to consume it or not */
2341 return spi_controller_notify_keylisteners (controller, &key_event, CORBA_TRUE, &ev);
2345 spi_device_event_controller_new (SpiRegistry *registry)
2347 SpiDEController *retval = g_object_new (
2348 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2350 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2351 BONOBO_OBJECT (registry)));
2353 spi_dec_init_mouse_listener (registry);
2354 /* TODO: kill mouse listener on finalize */
2359 is_key_released (KeyCode code)
2365 XQueryKeymap (spi_get_display (), keys);
2366 down = BIT (keys, code);
2371 check_release (gpointer data)
2374 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2375 KeyCode code = event->hw_code;
2376 CORBA_Environment ev;
2378 released = is_key_released (code);
2382 check_release_handler = 0;
2383 event->type = Accessibility_KEY_RELEASED_EVENT;
2384 ev._major = CORBA_NO_EXCEPTION;
2385 spi_controller_notify_keylisteners (saved_controller, event, CORBA_TRUE, &ev);
2387 return (released == 0);
2390 static void wait_for_release_event (GdkEvent *event,
2391 SpiDEController *controller)
2393 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2394 saved_controller = controller;
2395 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2398 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2399 Accessibility_DeviceEventController,
2401 spi_device_event_controller)