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
38 #include <X11/extensions/XTest.h>
39 #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"
57 #include "libspi/keymasks.h"
59 KeySym ucs2keysym (long ucs);
60 long keysym2ucs(KeySym keysym);
62 #define CHECK_RELEASE_DELAY 20
63 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
64 static guint check_release_handler = 0;
65 static Accessibility_DeviceEvent pressed_event;
66 static SpiDEController *saved_controller;
67 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
69 /* Our parent Gtk object type */
70 #define PARENT_TYPE G_TYPE_OBJECT
72 /* A pointer to our parent object class */
73 static int spi_error_code = 0;
74 static GdkPoint last_mouse_pos_static = {0, 0};
75 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
76 static unsigned int mouse_mask_state = 0;
77 static unsigned int mouse_button_mask =
78 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
79 static unsigned int key_modifier_mask =
80 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
81 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
83 static GQuark spi_dec_private_quark = 0;
84 static XModifierKeymap* xmkeymap = NULL;
86 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
90 SPI_DEVICE_TYPE_MOUSE,
91 SPI_DEVICE_TYPE_LAST_DEFINED
92 } SpiDeviceTypeCategory;
96 guint pending_add : 1;
97 guint pending_remove : 1;
99 Accessibility_ControllerEventMask mod_mask;
100 dbus_uint32_t key_val; /* KeyCode */
101 } DEControllerGrabMask;
106 SpiDeviceTypeCategory type;
108 } DEControllerListener;
111 DEControllerListener listener;
114 Accessibility_ControllerEventMask mask;
115 Accessibility_EventListenerMode *mode;
116 } DEControllerKeyListener;
119 unsigned int last_press_keycode;
120 unsigned int last_release_keycode;
121 struct timeval last_press_time;
122 struct timeval last_release_time;
124 int xkb_major_extension_opcode;
125 int xkb_base_event_code;
126 int xkb_base_error_code;
127 unsigned int xkb_latch_mask;
128 unsigned int pending_xkb_mod_relatch_mask;
130 KeyCode reserved_keycode;
131 KeySym reserved_keysym;
132 guint reserved_reset_timeout;
133 } DEControllerPrivateData;
135 static void spi_controller_register_with_devices (SpiDEController *controller);
136 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
137 Accessibility_DeviceEvent *recv);
138 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
139 DEControllerListener *l);
140 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
141 const XEvent *event);
142 static void spi_controller_deregister_device_listener (SpiDEController *controller,
143 DEControllerListener *listener);
144 static void spi_deregister_controller_key_listener (SpiDEController *controller,
145 DEControllerKeyListener *key_listener);
146 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
147 const Accessibility_DeviceEvent *event);
149 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
150 const Accessibility_DeviceEvent *event);
151 static gboolean spi_clear_error_state (void);
152 static gboolean spi_dec_poll_mouse_moved (gpointer data);
153 static gboolean spi_dec_poll_mouse_moving (gpointer data);
154 static gboolean spi_dec_poll_mouse_idle (gpointer data);
156 #define spi_get_display() GDK_DISPLAY()
158 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
160 /* Private methods */
163 keysym_mod_mask (KeySym keysym, KeyCode keycode)
165 /* we really should use XKB and look directly at the keymap */
166 /* this is very inelegant */
167 Display *display = spi_get_display ();
168 unsigned int mods_rtn = 0;
169 unsigned int retval = 0;
172 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
173 (sym_rtn == keysym)) {
176 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
177 (sym_rtn == keysym)) {
180 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
181 (sym_rtn == keysym)) {
184 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
185 (sym_rtn == keysym)) {
188 else if (XkbLookupKeySym (display, keycode,
189 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
190 (sym_rtn == keysym)) {
191 retval = (Mod2Mask | ShiftMask);
193 else if (XkbLookupKeySym (display, keycode,
194 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
195 (sym_rtn == keysym)) {
196 retval = (Mod3Mask | ShiftMask);
198 else if (XkbLookupKeySym (display, keycode,
199 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
200 (sym_rtn == keysym)) {
201 retval = (Mod4Mask | ShiftMask);
209 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
212 Display *dpy = spi_get_display ();
214 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
216 fprintf (stderr, "ERROR getting map\n");
220 if (desc && desc->map)
222 gint offset = desc->map->key_sym_map[keycode].offset;
223 desc->map->syms[offset] = keysym;
227 fprintf (stderr, "Error changing key map: empty server structure\n");
229 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
231 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
232 * would be far preferable.
233 * HOWEVER it does not seem to work using XFree 4.3.
235 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
238 XkbFreeKeyboard (desc, 0, TRUE);
247 spi_dec_reset_reserved (gpointer data)
249 DEControllerPrivateData *priv = data;
250 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
251 priv->reserved_reset_timeout = 0;
256 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
259 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
262 DEControllerPrivateData *priv = (DEControllerPrivateData *)
263 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
264 /* if there's no keycode available, fix it */
265 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
267 keycode = priv->reserved_keycode;
269 * queue a timer to restore the old keycode. Ugly, but required
270 * due to races / asynchronous X delivery.
271 * Long-term fix is to extend the X keymap here instead of replace entries.
273 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
279 *modmask = keysym_mod_mask (keysym, keycode);
283 static DEControllerGrabMask *
284 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
286 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
288 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
290 clone->ref_count = 1;
291 clone->pending_add = TRUE;
292 clone->pending_remove = FALSE;
298 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
304 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
306 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
307 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
315 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
320 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
322 DEControllerPrivateData *priv =
323 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
325 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
326 priv->xkb_latch_mask);
328 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
332 spi_dec_clear_unlatch_pending (SpiDEController *controller)
334 DEControllerPrivateData *priv =
335 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
336 priv->xkb_latch_mask = 0;
339 static void emit(SpiDEController *controller, const char *name, int first_type, ...)
343 va_start(arg, first_type);
344 spi_dbus_emit_valist(controller->registry->droute.bus, SPI_DBUS_PATH_DEC, SPI_DBUS_INTERFACE_DEC, name, first_type, arg);
349 spi_dec_button_update_and_emit (SpiDEController *controller,
352 Accessibility_DeviceEvent mouse_e;
353 gchar event_name[24];
354 gboolean is_consumed = FALSE;
356 if ((mask_return & mouse_button_mask) !=
357 (mouse_mask_state & mouse_button_mask))
359 int button_number = 0;
360 gboolean is_down = False;
362 if (!(mask_return & Button1Mask) &&
363 (mouse_mask_state & Button1Mask))
365 mouse_mask_state &= ~Button1Mask;
368 else if ((mask_return & Button1Mask) &&
369 !(mouse_mask_state & Button1Mask))
371 mouse_mask_state |= Button1Mask;
375 else if (!(mask_return & Button2Mask) &&
376 (mouse_mask_state & Button2Mask))
378 mouse_mask_state &= ~Button2Mask;
381 else if ((mask_return & Button2Mask) &&
382 !(mouse_mask_state & Button2Mask))
384 mouse_mask_state |= Button2Mask;
388 else if (!(mask_return & Button3Mask) &&
389 (mouse_mask_state & Button3Mask))
391 mouse_mask_state &= ~Button3Mask;
394 else if ((mask_return & Button3Mask) &&
395 !(mouse_mask_state & Button3Mask))
397 mouse_mask_state |= Button3Mask;
401 else if (!(mask_return & Button4Mask) &&
402 (mouse_mask_state & Button4Mask))
404 mouse_mask_state &= ~Button4Mask;
407 else if ((mask_return & Button4Mask) &&
408 !(mouse_mask_state & Button4Mask))
410 mouse_mask_state |= Button4Mask;
414 else if (!(mask_return & Button5Mask) &&
415 (mouse_mask_state & Button5Mask))
417 mouse_mask_state &= ~Button5Mask;
420 else if ((mask_return & Button5Mask) &&
421 !(mouse_mask_state & Button5Mask))
423 mouse_mask_state |= Button5Mask;
429 fprintf (stderr, "Button %d %s\n",
430 button_number, (is_down) ? "Pressed" : "Released");
432 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
433 (is_down) ? 'p' : 'r');
434 /* TODO: FIXME distinguish between physical and
437 mouse_e.type = (is_down) ?
438 Accessibility_BUTTON_PRESSED_EVENT :
439 Accessibility_BUTTON_RELEASED_EVENT;
440 mouse_e.id = button_number;
441 mouse_e.hw_code = button_number;
442 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
443 mouse_e.timestamp = 0;
444 mouse_e.event_string = "";
445 mouse_e.is_text = FALSE;
447 spi_controller_notify_mouselisteners (controller,
451 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
452 emit(controller, event_name, DBUS_TYPE_UINT32, &x, DBUS_TYPE_UINT32, &y, DBUS_TYPE_INVALID);
455 spi_dec_set_unlatch_pending (controller, mask_return);
467 spi_dec_mouse_check (SpiDEController *controller,
468 int *x, int *y, gboolean *moved)
470 int win_x_return,win_y_return;
471 unsigned int mask_return;
472 Window root_return, child_return;
473 Display *display = spi_get_display ();
476 XQueryPointer(display, DefaultRootWindow (display),
477 &root_return, &child_return,
479 &win_x_return, &win_y_return, &mask_return);
481 * Since many clients grab the pointer, and X goes an automatic
482 * pointer grab on mouse-down, we often must detect mouse button events
483 * by polling rather than via a button grab.
484 * The while loop (rather than if) is used since it's possible that
485 * multiple buttons have changed state since we last checked.
487 if (mask_return != mouse_mask_state)
489 while (spi_dec_button_update_and_emit (controller, mask_return));
492 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
494 // TODO: combine these two signals?
495 dbus_uint32_t ix = *x, iy = *y;
496 emit(controller, "mouse_abs", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
497 ix -= last_mouse_pos->x;
498 iy -= last_mouse_pos->y;
499 emit(controller, "mouse_rel", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
500 last_mouse_pos->x = *x;
501 last_mouse_pos->y = *y;
513 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
516 dbus_uint32_t d1, d2;
519 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
520 prev_mask, current_mask);
523 /* set bits for the virtual modifiers like NUMLOCK */
524 if (prev_mask & _numlock_physical_mask)
525 prev_mask |= SPI_KEYMASK_NUMLOCK;
526 if (current_mask & _numlock_physical_mask)
527 current_mask |= SPI_KEYMASK_NUMLOCK;
529 d1 = prev_mask & key_modifier_mask;
530 d2 = current_mask & key_modifier_mask;
531 emit(controller, "keyboard_modifiers", DBUS_TYPE_UINT32, &d1, DBUS_TYPE_UINT32, &d2, DBUS_TYPE_INVALID);
535 spi_dec_poll_mouse_moved (gpointer data)
537 SpiRegistry *registry = SPI_REGISTRY (data);
538 SpiDEController *controller = registry->de_controller;
543 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
545 if ((mask_return & key_modifier_mask) !=
546 (mouse_mask_state & key_modifier_mask))
548 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
549 mouse_mask_state = mask_return;
556 spi_dec_poll_mouse_idle (gpointer data)
558 if (! spi_dec_poll_mouse_moved (data))
562 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
568 spi_dec_poll_mouse_moving (gpointer data)
570 if (spi_dec_poll_mouse_moved (data))
574 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
579 #ifdef WE_NEED_UGRAB_MOUSE
581 spi_dec_ungrab_mouse (gpointer data)
583 Display *display = spi_get_display ();
586 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
587 XDefaultRootWindow (spi_get_display ()));
594 spi_dec_init_mouse_listener (SpiRegistry *registry)
597 Display *display = spi_get_display ();
599 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
604 if (XGrabButton (display, AnyButton, AnyModifier,
605 gdk_x11_get_default_root_xwindow (),
606 True, ButtonPressMask | ButtonReleaseMask,
607 GrabModeSync, GrabModeAsync, None, None) != Success) {
609 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
613 XSync (display, False);
615 fprintf (stderr, "mouse buttons grabbed\n");
622 * Eventually we can use this to make the marshalling of mask types
623 * more sane, but for now we just use this to detect
624 * the use of 'virtual' masks such as numlock and convert them to
625 * system-specific mask values (i.e. ModMask).
628 static Accessibility_ControllerEventMask
629 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
631 Accessibility_ControllerEventMask tmp_mask;
632 gboolean has_numlock;
634 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
638 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
639 tmp_mask |= _numlock_physical_mask;
645 static DEControllerKeyListener *
646 spi_dec_key_listener_new (const char *app_path,
649 const Accessibility_ControllerEventMask mask,
650 const dbus_uint32_t types,
651 const Accessibility_EventListenerMode *mode)
653 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
654 key_listener->listener.app_path = g_strdup(app_path);
655 key_listener->listener.path = g_strdup(path);
656 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
657 key_listener->keys = keys;
658 key_listener->mask = spi_dec_translate_mask (mask);
659 key_listener->listener.types = types;
662 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
663 memcpy(key_listener->mode, mode, sizeof(*mode));
666 key_listener->mode = NULL;
669 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
670 (unsigned int) key_listener->mask,
671 (int) (mode ? mode->global : 0),
672 (void *) key_listener->keys,
673 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
679 static DEControllerListener *
680 spi_dec_listener_new (const char *app_path,
684 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
685 listener->app_path = g_strdup(app_path);
686 listener->path = g_strdup(path);
687 listener->type = SPI_DEVICE_TYPE_MOUSE;
688 listener->types = types;
692 static DEControllerListener *
693 spi_listener_clone (DEControllerListener *listener)
695 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
696 clone->app_path = g_strdup (listener->app_path);
697 clone->path = g_strdup (listener->path);
698 clone->type = listener->type;
699 clone->types = listener->types;
703 static GSList *keylist_clone (GSList *s)
708 for (l = s; l; l = g_slist_next(l))
710 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
713 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
714 kd->keycode = kds->keycode;
715 kd->keysym = kds->keysym;
716 kd->keystring = g_strdup(kds->keystring);
717 d = g_slist_append(d, kd);
723 static DEControllerKeyListener *
724 spi_key_listener_clone (DEControllerKeyListener *key_listener)
726 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
727 clone->listener.app_path = g_strdup (key_listener->listener.app_path);
728 clone->listener.path = g_strdup (key_listener->listener.path);
729 clone->listener.type = SPI_DEVICE_TYPE_KBD;
730 clone->keys = keylist_clone (key_listener->keys);
731 clone->mask = key_listener->mask;
732 clone->listener.types = key_listener->listener.types;
733 if (key_listener->mode)
735 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
736 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
743 static void keylist_free(GSList *keys)
747 for (l = keys; l; l = g_slist_next(l))
749 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
750 g_free(kd->keystring);
757 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
759 keylist_free(key_listener->keys);
760 if (key_listener->mode) g_free(key_listener->mode);
761 g_free (key_listener);
765 spi_key_listener_clone_free (DEControllerKeyListener *clone)
767 spi_key_listener_data_free (clone);
771 spi_listener_clone_free (DEControllerListener *clone)
773 g_free (clone->path);
774 g_free (clone->app_path);
779 spi_dec_listener_free (DEControllerListener *listener)
781 g_free (listener->app_path);
782 g_free (listener->path);
783 if (listener->type == SPI_DEVICE_TYPE_KBD)
784 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
788 _register_keygrab (SpiDEController *controller,
789 DEControllerGrabMask *grab_mask)
793 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
794 spi_grab_mask_compare_values);
797 DEControllerGrabMask *cur_mask = l->data;
799 cur_mask->ref_count++;
800 if (cur_mask->pending_remove)
802 cur_mask->pending_remove = FALSE;
807 controller->keygrabs_list =
808 g_list_prepend (controller->keygrabs_list,
809 spi_grab_mask_clone (grab_mask));
814 _deregister_keygrab (SpiDEController *controller,
815 DEControllerGrabMask *grab_mask)
819 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
820 spi_grab_mask_compare_values);
824 DEControllerGrabMask *cur_mask = l->data;
826 cur_mask->ref_count--;
827 if (cur_mask->ref_count <= 0)
829 cur_mask->pending_remove = TRUE;
834 DBG (1, g_warning ("De-registering non-existant grab"));
839 handle_keygrab (SpiDEController *controller,
840 DEControllerKeyListener *key_listener,
841 void (*process_cb) (SpiDEController *controller,
842 DEControllerGrabMask *grab_mask))
844 DEControllerGrabMask grab_mask = { 0 };
846 grab_mask.mod_mask = key_listener->mask;
847 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
849 grab_mask.key_val = AnyKey;
851 fprintf (stderr, "AnyKey grab!");
853 process_cb (controller, &grab_mask);
859 for (l = key_listener->keys; l; l = g_slist_next(l))
861 Accessibility_KeyDefinition *keydef = l->data;
862 long int key_val = keydef->keysym;
863 /* X Grabs require keycodes, not keysyms */
864 if (keydef->keystring && keydef->keystring[0])
866 key_val = XStringToKeysym(keydef->keystring);
870 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
874 key_val = keydef->keycode;
876 grab_mask.key_val = key_val;
877 process_cb (controller, &grab_mask);
883 spi_controller_register_global_keygrabs (SpiDEController *controller,
884 DEControllerKeyListener *key_listener)
886 handle_keygrab (controller, key_listener, _register_keygrab);
887 if (controller->xevie_display == NULL)
888 return spi_controller_update_key_grabs (controller, NULL);
894 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
895 DEControllerKeyListener *key_listener)
897 handle_keygrab (controller, key_listener, _deregister_keygrab);
898 if (controller->xevie_display == NULL)
899 spi_controller_update_key_grabs (controller, NULL);
903 spi_controller_register_device_listener (SpiDEController *controller,
904 DEControllerListener *listener)
906 DEControllerKeyListener *key_listener;
908 switch (listener->type) {
909 case SPI_DEVICE_TYPE_KBD:
910 key_listener = (DEControllerKeyListener *) listener;
912 controller->key_listeners = g_list_prepend (controller->key_listeners,
914 if (key_listener->mode->global)
916 return spi_controller_register_global_keygrabs (controller, key_listener);
921 case SPI_DEVICE_TYPE_MOUSE:
922 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
925 DBG (1, g_warning ("listener registration for unknown device type.\n"));
931 static gboolean Accessibility_DeviceEventListener_notifyEvent(SpiRegistry *registry, DEControllerListener *listener, const Accessibility_DeviceEvent *key_event)
933 DBusMessage *message = dbus_message_new_method_call(listener->app_path, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
935 dbus_bool_t consumed = FALSE;
937 dbus_error_init(&error);
938 if (spi_dbus_marshall_deviceEvent(message, key_event))
940 // TODO: Evaluate performance: perhaps rework this whole architecture
941 // to avoid blocking calls
942 DBusMessage *reply = dbus_connection_send_with_reply_and_block(registry->droute.bus, message, 1000, &error);
946 dbus_error_init(&error);
947 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
948 dbus_message_unref(reply);
951 dbus_message_unref(message);
956 spi_controller_notify_mouselisteners (SpiDEController *controller,
957 const Accessibility_DeviceEvent *event)
960 GSList *notify = NULL, *l2;
961 GList **listeners = &controller->mouse_listeners;
962 gboolean is_consumed;
963 #ifdef SPI_KEYEVENT_DEBUG
964 gboolean found = FALSE;
971 for (l = *listeners; l; l = l->next)
973 DEControllerListener *listener = l->data;
975 if (spi_eventtype_seq_contains_event (listener->types, event))
977 /* we clone (don't dup) the listener, to avoid refcount inc. */
978 notify = g_slist_prepend (notify,
979 spi_listener_clone (listener));
980 #ifdef SPI_KEYEVENT_DEBUG
986 #ifdef SPI_KEYEVENT_DEBUG
989 g_print ("no match for event\n");
994 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
996 DEControllerListener *listener = l2->data;
998 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller->registry, listener, event);
1000 spi_listener_clone_free ((DEControllerListener *) l2->data);
1003 for (; l2; l2 = l2->next)
1005 DEControllerListener *listener = l2->data;
1006 spi_listener_clone_free (listener);
1007 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1010 g_slist_free (notify);
1013 if (is_consumed) g_message ("consumed\n");
1019 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1022 Accessibility_DeviceEvent mouse_e;
1023 gchar event_name[24];
1024 gboolean is_consumed = FALSE;
1025 gboolean xkb_mod_unlatch_occurred;
1026 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1027 dbus_uint32_t ix, iy;
1029 int button = xbutton_event->button;
1031 unsigned int mouse_button_state = xbutton_event->state;
1036 mouse_button_state |= Button1Mask;
1039 mouse_button_state |= Button2Mask;
1042 mouse_button_state |= Button3Mask;
1045 mouse_button_state |= Button4Mask;
1048 mouse_button_state |= Button5Mask;
1052 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1053 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1056 fprintf (stderr, "mouse button %d %s (%x)\n",
1057 xbutton_event->button,
1058 (xevent->type == ButtonPress) ? "Press" : "Release",
1059 mouse_button_state);
1061 snprintf (event_name, 22, "mouse:button_%d%c", button,
1062 (xevent->type == ButtonPress) ? 'p' : 'r');
1064 /* TODO: FIXME distinguish between physical and logical buttons */
1065 mouse_e.type = (xevent->type == ButtonPress) ?
1066 Accessibility_BUTTON_PRESSED_EVENT :
1067 Accessibility_BUTTON_RELEASED_EVENT;
1068 mouse_e.id = button;
1069 mouse_e.hw_code = button;
1070 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1071 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1072 mouse_e.event_string = "";
1073 mouse_e.is_text = FALSE;
1074 if ((mouse_button_state & mouse_button_mask) !=
1075 (mouse_mask_state & mouse_button_mask))
1077 if ((mouse_mask_state & key_modifier_mask) !=
1078 (mouse_button_state & key_modifier_mask))
1079 spi_dec_emit_modifier_event (controller,
1080 mouse_mask_state, mouse_button_state);
1081 mouse_mask_state = mouse_button_state;
1083 spi_controller_notify_mouselisteners (controller, &mouse_e);
1084 ix = last_mouse_pos->x;
1085 iy = last_mouse_pos->y;
1086 emit(controller, event_name, DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
1089 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1090 xevent->type == ButtonRelease);
1092 /* if client wants to consume this event, and XKB latch state was
1093 * unset by this button event, we reset it
1095 if (is_consumed && xkb_mod_unlatch_occurred)
1096 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1098 XAllowEvents (spi_get_display (),
1099 (is_consumed) ? SyncPointer : ReplayPointer,
1103 static GdkFilterReturn
1104 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1106 XEvent *xevent = gdk_xevent;
1107 SpiDEController *controller;
1108 DEControllerPrivateData *priv;
1109 Display *display = spi_get_display ();
1110 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1111 priv = (DEControllerPrivateData *)
1112 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1114 if (xevent->type == MappingNotify)
1117 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1119 if (controller->xevie_display == NULL)
1121 gboolean is_consumed;
1124 spi_device_event_controller_forward_key_event (controller, xevent);
1131 n_events = XPending (display);
1133 #ifdef SPI_KEYEVENT_DEBUG
1134 g_print ("Number of events pending: %d\n", n_events);
1136 for (i = 0; i < n_events; i++)
1138 XNextEvent (display, &next_event);
1139 if (next_event.type != KeyPress &&
1140 next_event.type != KeyRelease)
1141 g_warning ("Unexpected event type %d in queue", next_event.type);
1144 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1146 XUngrabKeyboard (display, CurrentTime);
1150 if (xevent->type == KeyPress)
1151 wait_for_release_event (xevent, controller);
1152 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1156 return GDK_FILTER_CONTINUE;
1158 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1160 spi_device_event_controller_forward_mouse_event (controller, xevent);
1162 if (xevent->type == priv->xkb_base_event_code)
1164 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1165 /* ugly but probably necessary...*/
1166 XSynchronize (display, TRUE);
1168 if (xkb_ev->xkb_type == XkbStateNotify)
1170 XkbStateNotifyEvent *xkb_snev =
1171 (XkbStateNotifyEvent *) xkb_ev;
1172 /* check the mouse, to catch mouse events grabbed by
1173 * another client; in case we should revert this XKB delatch
1175 if (!priv->pending_xkb_mod_relatch_mask)
1179 spi_dec_mouse_check (controller, &x, &y, &moved);
1181 /* we check again, since the previous call may have
1182 changed this flag */
1183 if (priv->pending_xkb_mod_relatch_mask)
1185 unsigned int feedback_mask;
1186 #ifdef SPI_XKB_DEBUG
1187 fprintf (stderr, "relatching %x\n",
1188 priv->pending_xkb_mod_relatch_mask);
1190 /* temporarily turn off the latch bell, if it's on */
1191 XkbGetControls (display,
1192 XkbAccessXFeedbackMask,
1194 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1195 if (feedback_mask & XkbAX_StickyKeysFBMask)
1197 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1199 priv->xkb_desc->ctrls->ax_options
1200 &= ~(XkbAX_StickyKeysFBMask);
1201 XkbChangeControls (display, priv->xkb_desc, &changes);
1203 /* TODO: account for lock as well as latch */
1204 XkbLatchModifiers (display,
1206 priv->pending_xkb_mod_relatch_mask,
1207 priv->pending_xkb_mod_relatch_mask);
1208 if (feedback_mask & XkbAX_StickyKeysFBMask)
1210 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1212 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1213 XkbChangeControls (display, priv->xkb_desc, &changes);
1215 #ifdef SPI_XKB_DEBUG
1216 fprintf (stderr, "relatched %x\n",
1217 priv->pending_xkb_mod_relatch_mask);
1219 priv->pending_xkb_mod_relatch_mask = 0;
1223 priv->xkb_latch_mask = xkb_snev->latched_mods;
1227 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1228 XSynchronize (display, FALSE);
1231 return GDK_FILTER_CONTINUE;
1235 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1237 if (error->error_code == BadAccess)
1239 g_message ("Could not complete key grab: grab already in use.\n");
1240 spi_error_code = BadAccess;
1245 return (*x_default_error_handler) (display, error);
1250 spi_controller_register_with_devices (SpiDEController *controller)
1252 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1253 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1254 /* FIXME: should check for extension first! */
1255 XTestGrabControl (spi_get_display (), True);
1257 /* calls to device-specific implementations and routines go here */
1258 /* register with: keyboard hardware code handler */
1259 /* register with: (translated) keystroke handler */
1261 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1262 &priv->xkb_major_extension_opcode,
1263 &priv->xkb_base_event_code,
1264 &priv->xkb_base_error_code, NULL, NULL);
1268 guint64 reserved = 0;
1269 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1270 XkbSelectEvents (spi_get_display (),
1272 XkbStateNotifyMask, XkbStateNotifyMask);
1273 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1275 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1277 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1279 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1281 /* don't use this one if there's a grab client! */
1282 gdk_error_trap_push ();
1283 XGrabKey (spi_get_display (), i, 0,
1284 gdk_x11_get_default_root_xwindow (),
1286 GrabModeSync, GrabModeSync);
1287 XSync (spi_get_display (), TRUE);
1288 XUngrabKey (spi_get_display (), i, 0,
1289 gdk_x11_get_default_root_xwindow ());
1290 if (!gdk_error_trap_pop ())
1300 priv->reserved_keycode = reserved;
1301 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1305 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1306 priv->reserved_keysym = XK_numbersign;
1308 #ifdef SPI_RESERVED_DEBUG
1310 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1311 fprintf (stderr, "%x\n", sym);
1312 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1314 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1319 gdk_window_add_filter (NULL, global_filter_fn, controller);
1321 gdk_window_set_events (gdk_get_default_root_window (),
1322 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1324 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1328 spi_key_set_contains_key (GSList *key_set,
1329 const Accessibility_DeviceEvent *key_event)
1337 g_print ("null key set!");
1341 len = g_slist_length (key_set);
1343 if (len == 0) /* special case, means "all keys/any key" */
1346 g_print ("anykey\n");
1351 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1353 Accessibility_KeyDefinition *kd = l->data;
1354 #ifdef SPI_KEYEVENT_DEBUG
1355 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1359 (int) key_event->id,
1360 (int) key_event->hw_code,
1361 key_event->event_string);
1363 if (kd->keysym == (dbus_uint32_t) key_event->id)
1367 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1371 if (key_event->event_string && key_event->event_string[0] &&
1372 !strcmp (kd->keystring, key_event->event_string))
1382 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1383 const Accessibility_DeviceEvent *event)
1385 if (types == 0) /* special case, means "all events/any event" */
1390 return (types & (1 << event->type));
1394 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1395 DEControllerKeyListener *listener,
1396 dbus_bool_t is_system_global)
1398 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1399 spi_key_set_contains_key (listener->keys, key_event) &&
1400 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1401 (is_system_global == listener->mode->global))
1412 spi_controller_notify_keylisteners (SpiDEController *controller,
1413 Accessibility_DeviceEvent *key_event,
1414 dbus_bool_t is_system_global)
1417 GSList *notify = NULL, *l2;
1418 GList **key_listeners = &controller->key_listeners;
1419 gboolean is_consumed;
1426 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1427 if (key_event->modifiers & _numlock_physical_mask)
1428 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1430 for (l = *key_listeners; l; l = l->next)
1432 DEControllerKeyListener *key_listener = l->data;
1434 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1436 /* we clone (don't dup) the listener, to avoid refcount inc. */
1437 notify = g_slist_prepend (notify,
1438 spi_key_listener_clone (key_listener));
1442 #ifdef SPI_KEYEVENT_DEBUG
1445 g_print ("no match for event\n");
1449 is_consumed = FALSE;
1450 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1452 DEControllerKeyListener *key_listener = l2->data;
1454 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller->registry, &key_listener->listener, key_event) &&
1455 key_listener->mode->preemptive;
1457 spi_key_listener_clone_free (key_listener);
1460 for (; l2; l2 = l2->next)
1462 DEControllerKeyListener *key_listener = l2->data;
1463 spi_key_listener_clone_free (key_listener);
1464 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1467 g_slist_free (notify);
1470 if (is_consumed) g_message ("consumed\n");
1476 spi_clear_error_state (void)
1478 gboolean retval = spi_error_code != 0;
1483 static Accessibility_DeviceEvent
1484 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1486 Accessibility_DeviceEvent key_event;
1488 const int cbuf_bytes = 20;
1492 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1493 key_event.id = (dbus_int32_t)(keysym);
1494 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1495 if (((XEvent *) x_key_event)->type == KeyPress)
1497 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1501 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1503 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1504 key_event.is_text = FALSE;
1508 key_event.event_string = g_strdup ("space");
1511 key_event.event_string = g_strdup ("Tab");
1514 key_event.event_string = g_strdup ("Backspace");
1517 key_event.event_string = g_strdup ("Return");
1520 key_event.event_string = g_strdup ("Home");
1523 key_event.event_string = g_strdup ("Page_Down");
1526 key_event.event_string = g_strdup ("Page_Up");
1529 key_event.event_string = g_strdup ("F1");
1532 key_event.event_string = g_strdup ("F2");
1535 key_event.event_string = g_strdup ("F3");
1538 key_event.event_string = g_strdup ("F4");
1541 key_event.event_string = g_strdup ("F5");
1544 key_event.event_string = g_strdup ("F6");
1547 key_event.event_string = g_strdup ("F7");
1550 key_event.event_string = g_strdup ("F8");
1553 key_event.event_string = g_strdup ("F9");
1556 key_event.event_string = g_strdup ("F10");
1559 key_event.event_string = g_strdup ("F11");
1562 key_event.event_string = g_strdup ("F12");
1565 key_event.event_string = g_strdup ("End");
1568 key_event.event_string = g_strdup ("Escape");
1571 key_event.event_string = g_strdup ("Up");
1574 key_event.event_string = g_strdup ("Down");
1577 key_event.event_string = g_strdup ("Left");
1580 key_event.event_string = g_strdup ("Right");
1586 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1587 key_event.event_string = g_strdup (cbuf);
1588 c = keysym2ucs (keysym);
1589 if (c > 0 && !g_unichar_iscntrl (c))
1591 key_event.is_text = TRUE;
1592 /* incorrect for some composed chars? */
1597 key_event.event_string = g_strdup ("");
1601 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1602 #ifdef SPI_KEYEVENT_DEBUG
1604 char *pressed_str = "pressed";
1605 char *released_str = "released";
1608 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1609 state_ptr = pressed_str;
1611 state_ptr = released_str;
1614 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1615 (unsigned long) keysym,
1617 keysym ? (int) keysym : '*',
1618 (int) x_key_event->state,
1619 key_event.event_string,
1620 key_event.event_string[0],
1621 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1625 fprintf (stderr, "%s%c\n",
1626 (x_key_event->state & Mod1Mask)?"Alt-":"",
1627 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1628 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1629 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1630 #endif /* SPI_DEBUG */
1635 spi_controller_update_key_grabs (SpiDEController *controller,
1636 Accessibility_DeviceEvent *recv)
1639 gboolean update_failed = FALSE;
1640 KeyCode keycode = 0;
1642 g_return_val_if_fail (controller != NULL, FALSE);
1645 * masks known to work with default RH 7.1+:
1646 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1647 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1648 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1649 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1651 * ControlMask grabs are broken, must be in use already
1654 keycode = keycode_for_keysym (controller, recv->id, NULL);
1655 for (l = controller->keygrabs_list; l; l = next)
1658 gboolean re_issue_grab;
1659 DEControllerGrabMask *grab_mask = l->data;
1663 re_issue_grab = recv &&
1664 (recv->modifiers & grab_mask->mod_mask) &&
1665 (grab_mask->key_val == keycode);
1668 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1669 (long int) grab_mask->key_val,
1670 (long int) grab_mask->mod_mask,
1671 grab_mask->pending_add ? '+' : '.',
1672 grab_mask->pending_remove ? '-' : '.',
1673 re_issue_grab ? "re-issue": "");
1678 if (grab_mask->pending_add && grab_mask->pending_remove)
1682 else if (grab_mask->pending_remove)
1685 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1687 XUngrabKey (spi_get_display (),
1689 grab_mask->mod_mask,
1690 gdk_x11_get_default_root_xwindow ());
1694 else if (grab_mask->pending_add || re_issue_grab)
1698 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1700 XGrabKey (spi_get_display (),
1702 grab_mask->mod_mask,
1703 gdk_x11_get_default_root_xwindow (),
1707 XSync (spi_get_display (), False);
1708 update_failed = spi_clear_error_state ();
1709 if (update_failed) {
1710 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1715 grab_mask->pending_add = FALSE;
1716 grab_mask->pending_remove = FALSE;
1720 g_assert (grab_mask->ref_count <= 0);
1722 controller->keygrabs_list = g_list_delete_link (
1723 controller->keygrabs_list, l);
1725 spi_grab_mask_free (grab_mask);
1730 return ! update_failed;
1734 * Implemented GObject::finalize
1737 spi_device_event_controller_object_finalize (GObject *object)
1739 SpiDEController *controller;
1740 DEControllerPrivateData *private;
1741 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1742 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1744 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1746 /* disconnect any special listeners, get rid of outstanding keygrabs */
1747 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1750 if (controller->xevie_display != NULL)
1752 XevieEnd(controller->xevie_display);
1753 #ifdef SPI_KEYEVENT_DEBUG
1754 printf("XevieEnd(dpy) finished \n");
1759 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1760 if (private->xkb_desc)
1761 XkbFreeKeyboard (private->xkb_desc, 0, True);
1763 parent_class->finalize (object);
1767 * DBus Accessibility::DEController::registerKeystrokeListener
1768 * method implementation
1770 static DBusMessage *
1771 impl_register_keystroke_listener (DBusConnection *bus,
1772 DBusMessage *message,
1775 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1776 DEControllerKeyListener *dec_listener;
1777 DBusMessageIter iter, iter_array;
1779 GSList *keys = NULL;
1780 dbus_int32_t mask, type;
1781 Accessibility_EventListenerMode *mode;
1786 dbus_message_iter_init(message, &iter);
1787 // TODO: verify type signature
1788 dbus_message_iter_get_basic(&iter, &path);
1789 dbus_message_iter_next(&iter);
1790 dbus_message_iter_recurse(&iter, &iter_array);
1791 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1793 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1794 if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
1798 kd->keystring = g_strdup (keystring);
1799 keys = g_slist_append(keys, kd);
1801 dbus_message_iter_next(&iter);
1802 dbus_message_iter_get_basic(&iter, &mask);
1803 dbus_message_iter_next(&iter);
1804 dbus_message_iter_get_basic(&iter, &type);
1805 dbus_message_iter_next(&iter);
1806 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1809 spi_dbus_message_iter_get_struct(&iter, DBUS_TYPE_BOOLEAN, &mode->synchronous, DBUS_TYPE_BOOLEAN, &mode->preemptive, DBUS_TYPE_BOOLEAN, &mode->global, DBUS_TYPE_INVALID);
1812 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1813 dbus_message_get_sender(message), path, (unsigned long) mask);
1815 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1816 ret = spi_controller_register_device_listener (
1817 controller, (DEControllerListener *) dec_listener);
1818 reply = dbus_message_new_method_return (message);
1821 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1827 * DBus Accessibility::DEController::registerDeviceEventListener
1828 * method implementation
1830 static DBusMessage *
1831 impl_register_device_listener (DBusConnection *bus,
1832 DBusMessage *message,
1835 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1836 DEControllerListener *dec_listener;
1839 dbus_int32_t event_types;
1843 dbus_error_init(&error);
1844 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1846 return spi_dbus_general_error (message);
1848 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1849 ret = spi_controller_register_device_listener (
1850 controller, (DEControllerListener *) dec_listener);
1851 reply = dbus_message_new_method_return (message);
1854 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1860 DBusConnection *bus;
1861 DEControllerListener *listener;
1862 } RemoveListenerClosure;
1864 static SpiReEntrantContinue
1865 remove_listener_cb (GList * const *list,
1868 DEControllerListener *listener = (*list)->data;
1869 RemoveListenerClosure *ctx = user_data;
1871 if (!strcmp(ctx->listener->app_path, listener->app_path) &&
1872 !strcmp(ctx->listener->path, listener->path))
1874 spi_re_entrant_list_delete_link (list);
1875 spi_dec_listener_free (listener);
1878 return SPI_RE_ENTRANT_CONTINUE;
1881 static SpiReEntrantContinue
1882 copy_key_listener_cb (GList * const *list,
1885 DEControllerKeyListener *key_listener = (*list)->data;
1886 RemoveListenerClosure *ctx = user_data;
1888 if (!strcmp(ctx->listener->app_path, key_listener->listener.app_path) &&
1889 !strcmp(ctx->listener->path, key_listener->listener.path))
1891 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1892 DEControllerKeyListener *ctx_key_listener =
1893 (DEControllerKeyListener *) ctx->listener;
1894 keylist_free (ctx_key_listener->keys);
1895 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1898 return SPI_RE_ENTRANT_CONTINUE;
1902 spi_controller_deregister_device_listener (SpiDEController *controller,
1903 DEControllerListener *listener)
1905 RemoveListenerClosure ctx;
1907 ctx.bus = controller->registry->droute.bus;
1908 ctx.listener = listener;
1910 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1911 remove_listener_cb, &ctx);
1915 spi_deregister_controller_key_listener (SpiDEController *controller,
1916 DEControllerKeyListener *key_listener)
1918 RemoveListenerClosure ctx;
1920 ctx.bus = controller->registry->droute.bus;
1921 ctx.listener = (DEControllerListener *) key_listener;
1923 /* special case, copy keyset from existing controller list entry */
1924 if (g_slist_length(key_listener->keys) == 0)
1926 spi_re_entrant_list_foreach (&controller->key_listeners,
1927 copy_key_listener_cb, &ctx);
1930 spi_controller_deregister_global_keygrabs (controller, key_listener);
1932 spi_re_entrant_list_foreach (&controller->key_listeners,
1933 remove_listener_cb, &ctx);
1938 * DBus Accessibility::DEController::deregisterKeystrokeListener
1939 * method implementation
1941 static DBusMessage *
1942 impl_deregister_keystroke_listener (DBusConnection *bus,
1943 DBusMessage *message,
1946 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1947 DEControllerKeyListener *key_listener;
1948 DBusMessageIter iter, iter_array;
1950 GSList *keys = NULL;
1951 dbus_int32_t mask, type;
1954 dbus_message_iter_init(message, &iter);
1955 // TODO: verify type signature
1956 dbus_message_iter_get_basic(&iter, &path);
1957 dbus_message_iter_next(&iter);
1958 dbus_message_iter_recurse(&iter, &iter_array);
1959 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1961 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1964 if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
1968 kd->keystring = g_strdup (keystring);
1969 keys = g_slist_append(keys, kd);
1971 dbus_message_iter_next(&iter);
1972 dbus_message_iter_get_basic(&iter, &mask);
1973 dbus_message_iter_next(&iter);
1974 dbus_message_iter_get_basic(&iter, &type);
1975 dbus_message_iter_next(&iter);
1976 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1977 #ifdef SPI_DEREGISTER_DEBUG
1978 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1979 (void *) l, (unsigned long) mask->value);
1982 spi_deregister_controller_key_listener (controller, key_listener);
1984 spi_dec_listener_free ((DEControllerListener *) key_listener);
1985 reply = dbus_message_new_method_return (message);
1990 * DBus Accessibility::DEController::deregisterDeviceEventListener
1991 * method implementation
1993 static DBusMessage *
1994 impl_deregister_device_listener (DBusConnection *bus,
1995 DBusMessage *message,
1998 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1999 DEControllerListener *listener;
2002 dbus_int32_t event_types;
2005 dbus_error_init(&error);
2006 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2008 return spi_dbus_general_error (message);
2010 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2011 spi_controller_deregister_device_listener (
2012 controller, listener);
2013 reply = dbus_message_new_method_return (message);
2017 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2019 unsigned int retval = 0;
2020 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2021 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2023 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2024 retval = XkbGetSlowKeysDelay (spi_get_display (),
2025 XkbUseCoreKbd, &bounce_delay);
2027 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2029 Status s = XkbGetControls (spi_get_display (),
2030 XkbAllControlsMask, priv->xkb_desc);
2033 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2034 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2039 #ifdef SPI_XKB_DEBUG
2040 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2045 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2047 unsigned int retval = 0;
2048 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2049 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2051 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2052 retval = XkbGetBounceKeysDelay (spi_get_display (),
2053 XkbUseCoreKbd, &bounce_delay);
2055 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2057 Status s = XkbGetControls (spi_get_display (),
2058 XkbAllControlsMask, priv->xkb_desc);
2061 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2062 retval = priv->xkb_desc->ctrls->debounce_delay;
2067 #ifdef SPI_XKB_DEBUG
2068 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2074 dec_synth_keycode_press (SpiDEController *controller,
2075 unsigned int keycode)
2077 unsigned int time = CurrentTime;
2078 unsigned int bounce_delay;
2079 unsigned int elapsed_msec;
2081 DEControllerPrivateData *priv =
2082 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2083 spi_dec_private_quark);
2084 if (keycode == priv->last_release_keycode)
2086 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2089 gettimeofday (&tv, NULL);
2091 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2092 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2093 #ifdef SPI_XKB_DEBUG
2094 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2095 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2097 #ifdef THIS_IS_BROKEN
2098 if (elapsed_msec < bounce_delay)
2099 time = bounce_delay - elapsed_msec + 1;
2101 time = bounce_delay + 10;
2102 /* fudge for broken XTest */
2104 #ifdef SPI_XKB_DEBUG
2105 fprintf (stderr, "waiting %d ms\n", time);
2109 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2110 priv->last_press_keycode = keycode;
2111 XFlush (spi_get_display ());
2112 XSync (spi_get_display (), False);
2113 gettimeofday (&priv->last_press_time, NULL);
2118 dec_synth_keycode_release (SpiDEController *controller,
2119 unsigned int keycode)
2121 unsigned int time = CurrentTime;
2122 unsigned int slow_delay;
2123 unsigned int elapsed_msec;
2125 DEControllerPrivateData *priv =
2126 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2127 spi_dec_private_quark);
2128 if (keycode == priv->last_press_keycode)
2130 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2133 gettimeofday (&tv, NULL);
2135 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2136 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2137 #ifdef SPI_XKB_DEBUG
2138 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2139 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2141 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2142 if (elapsed_msec < slow_delay)
2143 time = slow_delay - elapsed_msec + 1;
2145 time = slow_delay + 10;
2146 /* our XTest seems broken, we have to add slop as above */
2148 #ifdef SPI_XKB_DEBUG
2149 fprintf (stderr, "waiting %d ms\n", time);
2153 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2154 priv->last_release_keycode = keycode;
2155 XSync (spi_get_display (), False);
2156 gettimeofday (&priv->last_release_time, NULL);
2161 dec_get_modifier_state (SpiDEController *controller)
2163 return mouse_mask_state;
2167 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2169 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2170 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2172 if (priv->have_xkb) {
2173 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2174 modifiers, modifiers);
2177 for (mod_index=0;mod_index<8;mod_index++)
2178 if (modifiers & (1<<mod_index))
2179 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2185 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2187 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2188 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2190 if (priv->have_xkb) {
2191 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2195 for (mod_index=0;mod_index<8;mod_index++)
2196 if (modifiers & (1<<mod_index))
2197 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2203 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2205 return ucs2keysym ((long) unichar);
2209 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2211 KeyCode key_synth_code;
2212 unsigned int modifiers, synth_mods, lock_mods;
2214 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2216 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2218 /* TODO: set the modifiers accordingly! */
2219 modifiers = dec_get_modifier_state (controller);
2220 /* side-effect; we may unset mousebutton modifiers here! */
2223 if (synth_mods != modifiers) {
2224 lock_mods = synth_mods & ~modifiers;
2225 dec_lock_modifiers (controller, lock_mods);
2227 dec_synth_keycode_press (controller, key_synth_code);
2228 dec_synth_keycode_release (controller, key_synth_code);
2230 if (synth_mods != modifiers)
2231 dec_unlock_modifiers (controller, lock_mods);
2237 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2239 /* probably we need to create and inject an XIM handler eventually. */
2240 /* for now, try to match the string to existing
2241 * keycode+modifier states.
2245 gunichar unichar = 0;
2247 gboolean retval = TRUE;
2250 maxlen = strlen (keystring);
2251 keysyms = g_new0 (KeySym, maxlen);
2252 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2257 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2259 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2264 mbytes = g_unichar_to_utf8 (unichar, bytes);
2265 bytes[mbytes] = '\0';
2267 fprintf (stderr, "[unichar %s]", bytes);
2269 keysym = dec_keysym_for_unichar (controller, unichar);
2270 if (keysym == NoSymbol) {
2272 fprintf (stderr, "no keysym for %s", bytes);
2277 keysyms[i++] = keysym;
2278 keystring = g_utf8_next_char (keystring);
2281 XSynchronize (spi_get_display (), TRUE);
2282 for (i = 0; keysyms[i]; ++i) {
2283 if (!dec_synth_keysym (controller, keysyms[i])) {
2285 fprintf (stderr, "could not synthesize %c\n",
2292 XSynchronize (spi_get_display (), FALSE);
2301 * DBus Accessibility::DEController::registerKeystrokeListener
2302 * method implementation
2304 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2306 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2308 dbus_int32_t keycode;
2310 dbus_uint32_t synth_type;
2313 DEControllerPrivateData *priv;
2316 dbus_error_init(&error);
2317 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2319 return spi_dbus_general_error (message);
2323 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2324 (long) keycode, (int) synth_type);
2326 /* TODO: hide/wrap/remove X dependency */
2329 * TODO: when initializing, query for XTest extension before using,
2330 * and fall back to XSendEvent() if XTest is not available.
2333 gdk_error_trap_push ();
2335 priv = (DEControllerPrivateData *)
2336 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2338 if (!priv->have_xkb && xmkeymap==NULL) {
2339 xmkeymap = XGetModifierMapping(spi_get_display ());
2344 case Accessibility_KEY_PRESS:
2345 dec_synth_keycode_press (controller, keycode);
2347 case Accessibility_KEY_PRESSRELEASE:
2348 dec_synth_keycode_press (controller, keycode);
2349 case Accessibility_KEY_RELEASE:
2350 dec_synth_keycode_release (controller, keycode);
2352 case Accessibility_KEY_SYM:
2353 #ifdef SPI_XKB_DEBUG
2354 fprintf (stderr, "KeySym synthesis\n");
2357 * note: we are using long for 'keycode'
2358 * in our arg list; it can contain either
2359 * a keycode or a keysym.
2361 dec_synth_keysym (controller, (KeySym) keycode);
2363 case Accessibility_KEY_STRING:
2364 if (!dec_synth_keystring (controller, keystring))
2365 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2369 if ((err = gdk_error_trap_pop ()))
2371 DBG (-1, g_warning ("Error [%d] emitting keystroke", err));
2373 if (synth_type == Accessibility_KEY_SYM) {
2377 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2379 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2381 spi_dec_clear_unlatch_pending (controller);
2383 reply = dbus_message_new_method_return (message);
2387 /* Accessibility::DEController::generateMouseEvent */
2388 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2396 gboolean err = FALSE;
2397 Display *display = spi_get_display ();
2399 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2401 return spi_dbus_general_error (message);
2405 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2406 eventName, (long int) x, (long int) y);
2408 switch (eventName[0])
2411 switch (eventName[1])
2413 /* TODO: check number of buttons before parsing */
2434 if (x != -1 && y != -1)
2436 XTestFakeMotionEvent (display, DefaultScreen (display),
2439 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2440 if (eventName[2] == 'c')
2441 XTestFakeButtonEvent (display, button, FALSE, 1);
2442 else if (eventName[2] == 'd')
2444 XTestFakeButtonEvent (display, button, FALSE, 1);
2445 XTestFakeButtonEvent (display, button, TRUE, 2);
2446 XTestFakeButtonEvent (display, button, FALSE, 3);
2450 case 'r': /* relative motion */
2451 XTestFakeRelativeMotionEvent (display, x, y, 0);
2453 case 'a': /* absolute motion */
2454 XTestFakeMotionEvent (display, DefaultScreen (display),
2458 reply = dbus_message_new_method_return (message);
2462 /* Accessibility::DEController::notifyListenersSync */
2463 static DBusMessage *
2464 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2466 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2467 Accessibility_DeviceEvent event;
2471 if (!spi_dbus_demarshall_deviceEvent(message, &event))
2473 return spi_dbus_general_error (message);
2476 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2477 controller, (int) event.id);
2479 ret = spi_controller_notify_keylisteners (controller,
2480 (Accessibility_DeviceEvent *)
2483 reply = dbus_message_new_method_return (message);
2486 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2491 static DBusMessage *
2492 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2494 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2495 Accessibility_DeviceEvent event;
2498 if (!spi_dbus_demarshall_deviceEvent(message, &event))
2500 return spi_dbus_general_error (message);
2503 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2504 controller, (int) event.id);
2506 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2508 reply = dbus_message_new_method_return (message);
2513 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2515 GObjectClass * object_class = (GObjectClass *) klass;
2517 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2519 object_class->finalize = spi_device_event_controller_object_finalize;
2521 if (!spi_dec_private_quark)
2522 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2526 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2532 handle_io (GIOChannel *source,
2533 GIOCondition condition,
2536 SpiDEController *controller = (SpiDEController *) data;
2537 gboolean is_consumed = FALSE;
2540 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2542 if (ev.type == KeyPress || ev.type == KeyRelease)
2543 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2546 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2551 #endif /* HAVE_XEVIE */
2554 spi_device_event_controller_init (SpiDEController *device_event_controller)
2559 #endif /* HAVE_XEVIE */
2561 DEControllerPrivateData *private;
2562 device_event_controller->key_listeners = NULL;
2563 device_event_controller->mouse_listeners = NULL;
2564 device_event_controller->keygrabs_list = NULL;
2565 device_event_controller->xevie_display = NULL;
2568 device_event_controller->xevie_display = XOpenDisplay(NULL);
2570 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2572 #ifdef SPI_KEYEVENT_DEBUG
2573 fprintf (stderr, "XevieStart() success \n");
2575 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2577 fd = ConnectionNumber(device_event_controller->xevie_display);
2578 ioc = g_io_channel_unix_new (fd);
2579 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2580 g_io_channel_unref (ioc);
2584 device_event_controller->xevie_display = NULL;
2585 #ifdef SPI_KEYEVENT_DEBUG
2586 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2589 #endif /* HAVE_XEVIE */
2591 private = g_new0 (DEControllerPrivateData, 1);
2592 gettimeofday (&private->last_press_time, NULL);
2593 gettimeofday (&private->last_release_time, NULL);
2594 g_object_set_qdata (G_OBJECT (device_event_controller),
2595 spi_dec_private_quark,
2597 spi_controller_register_with_devices (device_event_controller);
2601 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2602 const XEvent *event)
2604 Accessibility_DeviceEvent key_event;
2607 g_assert (event->type == KeyPress || event->type == KeyRelease);
2609 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2611 if (controller->xevie_display == NULL)
2612 spi_controller_update_key_grabs (controller, &key_event);
2614 /* relay to listeners, and decide whether to consume it or not */
2615 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2616 g_free(key_event.event_string);
2621 spi_device_event_controller_new (SpiRegistry *registry)
2623 SpiDEController *retval = g_object_new (
2624 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2626 retval->registry = g_object_ref (registry);
2628 spi_dec_init_mouse_listener (registry);
2629 /* TODO: kill mouse listener on finalize */
2634 is_key_released (KeyCode code)
2639 XQueryKeymap (spi_get_display (), keys);
2640 down = BIT (keys, code);
2645 check_release (gpointer data)
2648 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2649 KeyCode code = event->hw_code;
2651 released = is_key_released (code);
2655 check_release_handler = 0;
2656 event->type = Accessibility_KEY_RELEASED_EVENT;
2657 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2659 return (released == 0);
2662 static void wait_for_release_event (XEvent *event,
2663 SpiDEController *controller)
2665 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2666 saved_controller = controller;
2667 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2670 static DRouteMethod methods[] =
2672 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2673 { impl_register_device_listener, "registerDeviceListener" },
2674 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2675 { impl_deregister_device_listener, "deregisterDeviceListener" },
2676 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2677 { impl_generate_mouse_event, "generateMouseEvent" },
2678 { impl_notify_listeners_sync, "notifyListenersSync" },
2679 { impl_notify_listeners_async, "notifyListenersAsync" },
2684 spi_registry_initialize_dec_interface (DRouteData * data)
2686 droute_add_interface (data, "org.freedesktop.atspi.DeviceEventController", methods,