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 */
52 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
53 #include <gdk/gdkkeysyms.h>
54 #include <gdk/gdkwindow.h>
56 #include <spi-common/keymasks.h>
57 #include <spi-common/spi-dbus.h>
58 #include <spi-common/spi-types.h>
60 #include <droute/droute.h>
62 #include "deviceeventcontroller.h"
63 #include "reentrant-list.h"
65 KeySym ucs2keysym (long ucs);
66 long keysym2ucs(KeySym keysym);
68 #define CHECK_RELEASE_DELAY 20
69 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
70 static guint check_release_handler = 0;
71 static Accessibility_DeviceEvent pressed_event;
72 static SpiDEController *saved_controller;
73 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
75 /* Our parent Gtk object type */
76 #define PARENT_TYPE G_TYPE_OBJECT
78 /* A pointer to our parent object class */
79 static int spi_error_code = 0;
80 static GdkPoint last_mouse_pos_static = {0, 0};
81 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
82 static unsigned int mouse_mask_state = 0;
83 static unsigned int mouse_button_mask =
84 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
85 static unsigned int key_modifier_mask =
86 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
87 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
89 static GQuark spi_dec_private_quark = 0;
90 static XModifierKeymap* xmkeymap = NULL;
92 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
96 SPI_DEVICE_TYPE_MOUSE,
97 SPI_DEVICE_TYPE_LAST_DEFINED
98 } SpiDeviceTypeCategory;
101 guint ref_count : 30;
102 guint pending_add : 1;
103 guint pending_remove : 1;
105 Accessibility_ControllerEventMask mod_mask;
106 dbus_uint32_t key_val; /* KeyCode */
107 } DEControllerGrabMask;
112 SpiDeviceTypeCategory type;
114 } DEControllerListener;
117 DEControllerListener listener;
120 Accessibility_ControllerEventMask mask;
121 Accessibility_EventListenerMode *mode;
122 } DEControllerKeyListener;
125 unsigned int last_press_keycode;
126 unsigned int last_release_keycode;
127 struct timeval last_press_time;
128 struct timeval last_release_time;
130 int xkb_major_extension_opcode;
131 int xkb_base_event_code;
132 int xkb_base_error_code;
133 unsigned int xkb_latch_mask;
134 unsigned int pending_xkb_mod_relatch_mask;
136 KeyCode reserved_keycode;
137 KeySym reserved_keysym;
138 guint reserved_reset_timeout;
139 } DEControllerPrivateData;
141 static void spi_controller_register_with_devices (SpiDEController *controller);
142 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
143 Accessibility_DeviceEvent *recv);
144 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
145 DEControllerListener *l);
146 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
147 const XEvent *event);
148 static void spi_controller_deregister_device_listener (SpiDEController *controller,
149 DEControllerListener *listener);
150 static void spi_deregister_controller_key_listener (SpiDEController *controller,
151 DEControllerKeyListener *key_listener);
152 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
153 const Accessibility_DeviceEvent *event);
155 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
156 const Accessibility_DeviceEvent *event);
157 static gboolean spi_clear_error_state (void);
158 static gboolean spi_dec_poll_mouse_moved (gpointer data);
159 static gboolean spi_dec_poll_mouse_moving (gpointer data);
160 static gboolean spi_dec_poll_mouse_idle (gpointer data);
162 #define spi_get_display() GDK_DISPLAY()
164 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
166 /* Private methods */
168 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
170 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
174 dbus_error_init (&error);
175 dbus_bus_add_match (bus, match, &error);
177 return !dbus_error_is_set (&error);
183 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
185 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
189 dbus_error_init (&error);
190 dbus_bus_remove_match (bus, match, &error);
192 return !dbus_error_is_set (&error);
198 keysym_mod_mask (KeySym keysym, KeyCode keycode)
200 /* we really should use XKB and look directly at the keymap */
201 /* this is very inelegant */
202 Display *display = spi_get_display ();
203 unsigned int mods_rtn = 0;
204 unsigned int retval = 0;
207 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
208 (sym_rtn == keysym)) {
211 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
212 (sym_rtn == keysym)) {
215 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
216 (sym_rtn == keysym)) {
219 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
220 (sym_rtn == keysym)) {
223 else if (XkbLookupKeySym (display, keycode,
224 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
225 (sym_rtn == keysym)) {
226 retval = (Mod2Mask | ShiftMask);
228 else if (XkbLookupKeySym (display, keycode,
229 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
230 (sym_rtn == keysym)) {
231 retval = (Mod3Mask | ShiftMask);
233 else if (XkbLookupKeySym (display, keycode,
234 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
235 (sym_rtn == keysym)) {
236 retval = (Mod4Mask | ShiftMask);
244 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
247 Display *dpy = spi_get_display ();
249 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
251 fprintf (stderr, "ERROR getting map\n");
255 if (desc && desc->map)
257 gint offset = desc->map->key_sym_map[keycode].offset;
258 desc->map->syms[offset] = keysym;
262 fprintf (stderr, "Error changing key map: empty server structure\n");
264 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
266 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
267 * would be far preferable.
268 * HOWEVER it does not seem to work using XFree 4.3.
270 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
273 XkbFreeKeyboard (desc, 0, TRUE);
282 spi_dec_reset_reserved (gpointer data)
284 DEControllerPrivateData *priv = data;
285 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
286 priv->reserved_reset_timeout = 0;
291 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
294 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
297 DEControllerPrivateData *priv = (DEControllerPrivateData *)
298 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
299 /* if there's no keycode available, fix it */
300 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
302 keycode = priv->reserved_keycode;
304 * queue a timer to restore the old keycode. Ugly, but required
305 * due to races / asynchronous X delivery.
306 * Long-term fix is to extend the X keymap here instead of replace entries.
308 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
314 *modmask = keysym_mod_mask (keysym, keycode);
318 static DEControllerGrabMask *
319 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
321 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
323 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
325 clone->ref_count = 1;
326 clone->pending_add = TRUE;
327 clone->pending_remove = FALSE;
333 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
339 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
341 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
342 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
350 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
355 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
357 DEControllerPrivateData *priv =
358 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
360 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
361 priv->xkb_latch_mask);
363 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
367 spi_dec_clear_unlatch_pending (SpiDEController *controller)
369 DEControllerPrivateData *priv =
370 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
371 priv->xkb_latch_mask = 0;
374 static void emit(SpiDEController *controller, const char *interface, const char *name, const char *detail, dbus_uint32_t d1, dbus_uint32_t d2)
376 spi_dbus_emit_signal(controller->bus, SPI_DBUS_PATH_DEC, interface, name, detail, d1, d2, NULL, NULL);
380 spi_dec_button_update_and_emit (SpiDEController *controller,
383 Accessibility_DeviceEvent mouse_e;
384 gchar event_detail[24];
385 gboolean is_consumed = FALSE;
387 if ((mask_return & mouse_button_mask) !=
388 (mouse_mask_state & mouse_button_mask))
390 int button_number = 0;
391 gboolean is_down = False;
393 if (!(mask_return & Button1Mask) &&
394 (mouse_mask_state & Button1Mask))
396 mouse_mask_state &= ~Button1Mask;
399 else if ((mask_return & Button1Mask) &&
400 !(mouse_mask_state & Button1Mask))
402 mouse_mask_state |= Button1Mask;
406 else if (!(mask_return & Button2Mask) &&
407 (mouse_mask_state & Button2Mask))
409 mouse_mask_state &= ~Button2Mask;
412 else if ((mask_return & Button2Mask) &&
413 !(mouse_mask_state & Button2Mask))
415 mouse_mask_state |= Button2Mask;
419 else if (!(mask_return & Button3Mask) &&
420 (mouse_mask_state & Button3Mask))
422 mouse_mask_state &= ~Button3Mask;
425 else if ((mask_return & Button3Mask) &&
426 !(mouse_mask_state & Button3Mask))
428 mouse_mask_state |= Button3Mask;
432 else if (!(mask_return & Button4Mask) &&
433 (mouse_mask_state & Button4Mask))
435 mouse_mask_state &= ~Button4Mask;
438 else if ((mask_return & Button4Mask) &&
439 !(mouse_mask_state & Button4Mask))
441 mouse_mask_state |= Button4Mask;
445 else if (!(mask_return & Button5Mask) &&
446 (mouse_mask_state & Button5Mask))
448 mouse_mask_state &= ~Button5Mask;
451 else if ((mask_return & Button5Mask) &&
452 !(mouse_mask_state & Button5Mask))
454 mouse_mask_state |= Button5Mask;
460 fprintf (stderr, "Button %d %s\n",
461 button_number, (is_down) ? "Pressed" : "Released");
463 snprintf (event_detail, 22, "%d%c", button_number,
464 (is_down) ? 'p' : 'r');
465 /* TODO: FIXME distinguish between physical and
468 mouse_e.type = (is_down) ?
469 Accessibility_BUTTON_PRESSED_EVENT :
470 Accessibility_BUTTON_RELEASED_EVENT;
471 mouse_e.id = button_number;
472 mouse_e.hw_code = button_number;
473 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
474 mouse_e.timestamp = 0;
475 mouse_e.event_string = "";
476 mouse_e.is_text = FALSE;
478 spi_controller_notify_mouselisteners (controller,
482 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
483 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, x, y);
486 spi_dec_set_unlatch_pending (controller, mask_return);
498 spi_dec_mouse_check (SpiDEController *controller,
499 int *x, int *y, gboolean *moved)
501 int win_x_return,win_y_return;
502 unsigned int mask_return;
503 Window root_return, child_return;
504 Display *display = spi_get_display ();
507 XQueryPointer(display, DefaultRootWindow (display),
508 &root_return, &child_return,
510 &win_x_return, &win_y_return, &mask_return);
512 * Since many clients grab the pointer, and X goes an automatic
513 * pointer grab on mouse-down, we often must detect mouse button events
514 * by polling rather than via a button grab.
515 * The while loop (rather than if) is used since it's possible that
516 * multiple buttons have changed state since we last checked.
518 if (mask_return != mouse_mask_state)
520 while (spi_dec_button_update_and_emit (controller, mask_return));
523 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
525 // TODO: combine these two signals?
526 dbus_uint32_t ix = *x, iy = *y;
527 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "abs", NULL, ix, iy);
528 ix -= last_mouse_pos->x;
529 iy -= last_mouse_pos->y;
530 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "rel", NULL, ix, iy);
531 last_mouse_pos->x = *x;
532 last_mouse_pos->y = *y;
544 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
547 dbus_uint32_t d1, d2;
550 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
551 prev_mask, current_mask);
554 /* set bits for the virtual modifiers like NUMLOCK */
555 if (prev_mask & _numlock_physical_mask)
556 prev_mask |= SPI_KEYMASK_NUMLOCK;
557 if (current_mask & _numlock_physical_mask)
558 current_mask |= SPI_KEYMASK_NUMLOCK;
560 d1 = prev_mask & key_modifier_mask;
561 d2 = current_mask & key_modifier_mask;
562 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "modifiers", NULL, d1, d2);
566 spi_dec_poll_mouse_moved (gpointer data)
568 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
573 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
575 if ((mask_return & key_modifier_mask) !=
576 (mouse_mask_state & key_modifier_mask))
578 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
579 mouse_mask_state = mask_return;
586 spi_dec_poll_mouse_idle (gpointer data)
588 if (! spi_dec_poll_mouse_moved (data))
592 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
598 spi_dec_poll_mouse_moving (gpointer data)
600 if (spi_dec_poll_mouse_moved (data))
604 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
609 #ifdef WE_NEED_UGRAB_MOUSE
611 spi_dec_ungrab_mouse (gpointer data)
613 Display *display = spi_get_display ();
616 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
617 XDefaultRootWindow (spi_get_display ()));
624 spi_dec_init_mouse_listener (SpiDEController *dec)
627 Display *display = spi_get_display ();
629 g_timeout_add (100, spi_dec_poll_mouse_idle, dec);
634 if (XGrabButton (display, AnyButton, AnyModifier,
635 gdk_x11_get_default_root_xwindow (),
636 True, ButtonPressMask | ButtonReleaseMask,
637 GrabModeSync, GrabModeAsync, None, None) != Success) {
639 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
643 XSync (display, False);
645 fprintf (stderr, "mouse buttons grabbed\n");
652 * Eventually we can use this to make the marshalling of mask types
653 * more sane, but for now we just use this to detect
654 * the use of 'virtual' masks such as numlock and convert them to
655 * system-specific mask values (i.e. ModMask).
658 static Accessibility_ControllerEventMask
659 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
661 Accessibility_ControllerEventMask tmp_mask;
662 gboolean has_numlock;
664 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
668 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
669 tmp_mask |= _numlock_physical_mask;
675 static DEControllerKeyListener *
676 spi_dec_key_listener_new (const char *bus_name,
679 const Accessibility_ControllerEventMask mask,
680 const dbus_uint32_t types,
681 const Accessibility_EventListenerMode *mode)
683 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
684 key_listener->listener.bus_name = g_strdup(bus_name);
685 key_listener->listener.path = g_strdup(path);
686 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
687 key_listener->keys = keys;
688 key_listener->mask = spi_dec_translate_mask (mask);
689 key_listener->listener.types = types;
692 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
693 memcpy(key_listener->mode, mode, sizeof(*mode));
696 key_listener->mode = NULL;
699 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
700 (unsigned int) key_listener->mask,
701 (int) (mode ? mode->global : 0),
702 (void *) key_listener->keys,
703 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
709 static DEControllerListener *
710 spi_dec_listener_new (const char *bus_name,
714 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
715 listener->bus_name = g_strdup(bus_name);
716 listener->path = g_strdup(path);
717 listener->type = SPI_DEVICE_TYPE_MOUSE;
718 listener->types = types;
722 static DEControllerListener *
723 spi_listener_clone (DEControllerListener *listener)
725 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
726 clone->bus_name = g_strdup (listener->bus_name);
727 clone->path = g_strdup (listener->path);
728 clone->type = listener->type;
729 clone->types = listener->types;
733 static GSList *keylist_clone (GSList *s)
738 for (l = s; l; l = g_slist_next(l))
740 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
743 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
744 kd->keycode = kds->keycode;
745 kd->keysym = kds->keysym;
746 kd->keystring = g_strdup(kds->keystring);
747 d = g_slist_append(d, kd);
753 static DEControllerKeyListener *
754 spi_key_listener_clone (DEControllerKeyListener *key_listener)
756 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
757 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
758 clone->listener.path = g_strdup (key_listener->listener.path);
759 clone->listener.type = SPI_DEVICE_TYPE_KBD;
760 clone->keys = keylist_clone (key_listener->keys);
761 clone->mask = key_listener->mask;
762 clone->listener.types = key_listener->listener.types;
763 if (key_listener->mode)
765 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
766 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
773 static void keylist_free(GSList *keys)
777 for (l = keys; l; l = g_slist_next(l))
779 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
780 g_free(kd->keystring);
787 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
789 keylist_free(key_listener->keys);
790 if (key_listener->mode) g_free(key_listener->mode);
791 g_free (key_listener);
795 spi_key_listener_clone_free (DEControllerKeyListener *clone)
797 spi_key_listener_data_free (clone);
801 spi_listener_clone_free (DEControllerListener *clone)
803 g_free (clone->path);
804 g_free (clone->bus_name);
809 spi_dec_listener_free (DEControllerListener *listener)
811 g_free (listener->bus_name);
812 g_free (listener->path);
813 if (listener->type == SPI_DEVICE_TYPE_KBD)
814 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
818 _register_keygrab (SpiDEController *controller,
819 DEControllerGrabMask *grab_mask)
823 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
824 spi_grab_mask_compare_values);
827 DEControllerGrabMask *cur_mask = l->data;
829 cur_mask->ref_count++;
830 if (cur_mask->pending_remove)
832 cur_mask->pending_remove = FALSE;
837 controller->keygrabs_list =
838 g_list_prepend (controller->keygrabs_list,
839 spi_grab_mask_clone (grab_mask));
844 _deregister_keygrab (SpiDEController *controller,
845 DEControllerGrabMask *grab_mask)
849 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
850 spi_grab_mask_compare_values);
854 DEControllerGrabMask *cur_mask = l->data;
856 cur_mask->ref_count--;
857 if (cur_mask->ref_count <= 0)
859 cur_mask->pending_remove = TRUE;
865 handle_keygrab (SpiDEController *controller,
866 DEControllerKeyListener *key_listener,
867 void (*process_cb) (SpiDEController *controller,
868 DEControllerGrabMask *grab_mask))
870 DEControllerGrabMask grab_mask = { 0 };
872 grab_mask.mod_mask = key_listener->mask;
873 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
875 grab_mask.key_val = AnyKey;
877 fprintf (stderr, "AnyKey grab!");
879 process_cb (controller, &grab_mask);
885 for (l = key_listener->keys; l; l = g_slist_next(l))
887 Accessibility_KeyDefinition *keydef = l->data;
888 long int key_val = keydef->keysym;
889 /* X Grabs require keycodes, not keysyms */
890 if (keydef->keystring && keydef->keystring[0])
892 key_val = XStringToKeysym(keydef->keystring);
896 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
900 key_val = keydef->keycode;
902 grab_mask.key_val = key_val;
903 process_cb (controller, &grab_mask);
909 spi_controller_register_global_keygrabs (SpiDEController *controller,
910 DEControllerKeyListener *key_listener)
912 handle_keygrab (controller, key_listener, _register_keygrab);
913 if (controller->xevie_display == NULL)
914 return spi_controller_update_key_grabs (controller, NULL);
920 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
921 DEControllerKeyListener *key_listener)
923 handle_keygrab (controller, key_listener, _deregister_keygrab);
924 if (controller->xevie_display == NULL)
925 spi_controller_update_key_grabs (controller, NULL);
929 spi_controller_register_device_listener (SpiDEController *controller,
930 DEControllerListener *listener)
932 DEControllerKeyListener *key_listener;
934 switch (listener->type) {
935 case SPI_DEVICE_TYPE_KBD:
936 key_listener = (DEControllerKeyListener *) listener;
938 controller->key_listeners = g_list_prepend (controller->key_listeners,
940 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
941 if (key_listener->mode->global)
943 return spi_controller_register_global_keygrabs (controller, key_listener);
948 case SPI_DEVICE_TYPE_MOUSE:
949 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
950 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
959 Accessibility_DeviceEventListener_notifyEvent(SpiDEController *controller,
960 SpiRegistry *registry,
961 DEControllerListener *listener,
962 const Accessibility_DeviceEvent *key_event)
964 DBusMessage *message = dbus_message_new_method_call(listener->bus_name, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
966 dbus_bool_t consumed = FALSE;
968 dbus_error_init(&error);
969 if (spi_dbus_marshal_deviceEvent(message, key_event))
971 // TODO: Evaluate performance: perhaps rework this whole architecture
972 // to avoid blocking calls
973 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
977 dbus_error_init(&error);
978 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
979 dbus_message_unref(reply);
982 dbus_message_unref(message);
987 spi_controller_notify_mouselisteners (SpiDEController *controller,
988 const Accessibility_DeviceEvent *event)
991 GSList *notify = NULL, *l2;
992 GList **listeners = &controller->mouse_listeners;
993 gboolean is_consumed;
994 #ifdef SPI_KEYEVENT_DEBUG
995 gboolean found = FALSE;
1002 for (l = *listeners; l; l = l->next)
1004 DEControllerListener *listener = l->data;
1006 if (spi_eventtype_seq_contains_event (listener->types, event))
1008 /* we clone (don't dup) the listener, to avoid refcount inc. */
1009 notify = g_slist_prepend (notify,
1010 spi_listener_clone (listener));
1011 #ifdef SPI_KEYEVENT_DEBUG
1017 #ifdef SPI_KEYEVENT_DEBUG
1020 g_print ("no match for event\n");
1024 is_consumed = FALSE;
1025 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1027 DEControllerListener *listener = l2->data;
1029 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, listener, event);
1031 spi_listener_clone_free ((DEControllerListener *) l2->data);
1034 for (; l2; l2 = l2->next)
1036 DEControllerListener *listener = l2->data;
1037 spi_listener_clone_free (listener);
1038 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1041 g_slist_free (notify);
1044 if (is_consumed) g_message ("consumed\n");
1050 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1053 Accessibility_DeviceEvent mouse_e;
1054 gchar event_detail[24];
1055 gboolean is_consumed = FALSE;
1056 gboolean xkb_mod_unlatch_occurred;
1057 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1058 dbus_uint32_t ix, iy;
1060 int button = xbutton_event->button;
1062 unsigned int mouse_button_state = xbutton_event->state;
1067 mouse_button_state |= Button1Mask;
1070 mouse_button_state |= Button2Mask;
1073 mouse_button_state |= Button3Mask;
1076 mouse_button_state |= Button4Mask;
1079 mouse_button_state |= Button5Mask;
1083 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1084 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1087 fprintf (stderr, "mouse button %d %s (%x)\n",
1088 xbutton_event->button,
1089 (xevent->type == ButtonPress) ? "Press" : "Release",
1090 mouse_button_state);
1092 snprintf (event_detail, 22, "%d%c", button,
1093 (xevent->type == ButtonPress) ? 'p' : 'r');
1095 /* TODO: FIXME distinguish between physical and logical buttons */
1096 mouse_e.type = (xevent->type == ButtonPress) ?
1097 Accessibility_BUTTON_PRESSED_EVENT :
1098 Accessibility_BUTTON_RELEASED_EVENT;
1099 mouse_e.id = button;
1100 mouse_e.hw_code = button;
1101 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1102 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1103 mouse_e.event_string = "";
1104 mouse_e.is_text = FALSE;
1105 if ((mouse_button_state & mouse_button_mask) !=
1106 (mouse_mask_state & mouse_button_mask))
1108 if ((mouse_mask_state & key_modifier_mask) !=
1109 (mouse_button_state & key_modifier_mask))
1110 spi_dec_emit_modifier_event (controller,
1111 mouse_mask_state, mouse_button_state);
1112 mouse_mask_state = mouse_button_state;
1114 spi_controller_notify_mouselisteners (controller, &mouse_e);
1115 ix = last_mouse_pos->x;
1116 iy = last_mouse_pos->y;
1117 /* TODO - Work out which part of the spec this emit is fulfilling */
1118 //emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, ix, iy);
1121 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1122 xevent->type == ButtonRelease);
1124 /* if client wants to consume this event, and XKB latch state was
1125 * unset by this button event, we reset it
1127 if (is_consumed && xkb_mod_unlatch_occurred)
1128 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1130 XAllowEvents (spi_get_display (),
1131 (is_consumed) ? SyncPointer : ReplayPointer,
1135 static GdkFilterReturn
1136 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1138 XEvent *xevent = gdk_xevent;
1139 SpiDEController *controller;
1140 DEControllerPrivateData *priv;
1141 Display *display = spi_get_display ();
1142 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1143 priv = (DEControllerPrivateData *)
1144 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1146 if (xevent->type == MappingNotify)
1149 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1151 if (controller->xevie_display == NULL)
1153 gboolean is_consumed;
1156 spi_device_event_controller_forward_key_event (controller, xevent);
1163 n_events = XPending (display);
1165 #ifdef SPI_KEYEVENT_DEBUG
1166 g_print ("Number of events pending: %d\n", n_events);
1168 for (i = 0; i < n_events; i++)
1170 XNextEvent (display, &next_event);
1171 if (next_event.type != KeyPress &&
1172 next_event.type != KeyRelease)
1173 g_warning ("Unexpected event type %d in queue", next_event.type);
1176 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1178 XUngrabKeyboard (display, CurrentTime);
1182 if (xevent->type == KeyPress)
1183 wait_for_release_event (xevent, controller);
1184 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1188 return GDK_FILTER_CONTINUE;
1190 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1192 spi_device_event_controller_forward_mouse_event (controller, xevent);
1194 if (xevent->type == priv->xkb_base_event_code)
1196 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1197 /* ugly but probably necessary...*/
1198 XSynchronize (display, TRUE);
1200 if (xkb_ev->xkb_type == XkbStateNotify)
1202 XkbStateNotifyEvent *xkb_snev =
1203 (XkbStateNotifyEvent *) xkb_ev;
1204 /* check the mouse, to catch mouse events grabbed by
1205 * another client; in case we should revert this XKB delatch
1207 if (!priv->pending_xkb_mod_relatch_mask)
1211 spi_dec_mouse_check (controller, &x, &y, &moved);
1213 /* we check again, since the previous call may have
1214 changed this flag */
1215 if (priv->pending_xkb_mod_relatch_mask)
1217 unsigned int feedback_mask;
1218 #ifdef SPI_XKB_DEBUG
1219 fprintf (stderr, "relatching %x\n",
1220 priv->pending_xkb_mod_relatch_mask);
1222 /* temporarily turn off the latch bell, if it's on */
1223 XkbGetControls (display,
1224 XkbAccessXFeedbackMask,
1226 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1227 if (feedback_mask & XkbAX_StickyKeysFBMask)
1229 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1231 priv->xkb_desc->ctrls->ax_options
1232 &= ~(XkbAX_StickyKeysFBMask);
1233 XkbChangeControls (display, priv->xkb_desc, &changes);
1235 /* TODO: account for lock as well as latch */
1236 XkbLatchModifiers (display,
1238 priv->pending_xkb_mod_relatch_mask,
1239 priv->pending_xkb_mod_relatch_mask);
1240 if (feedback_mask & XkbAX_StickyKeysFBMask)
1242 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1244 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1245 XkbChangeControls (display, priv->xkb_desc, &changes);
1247 #ifdef SPI_XKB_DEBUG
1248 fprintf (stderr, "relatched %x\n",
1249 priv->pending_xkb_mod_relatch_mask);
1251 priv->pending_xkb_mod_relatch_mask = 0;
1255 priv->xkb_latch_mask = xkb_snev->latched_mods;
1258 XSynchronize (display, FALSE);
1261 return GDK_FILTER_CONTINUE;
1265 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1267 if (error->error_code == BadAccess)
1269 g_message ("Could not complete key grab: grab already in use.\n");
1270 spi_error_code = BadAccess;
1275 return (*x_default_error_handler) (display, error);
1280 spi_controller_register_with_devices (SpiDEController *controller)
1282 DEControllerPrivateData *priv;
1283 int event_base, error_base, major_version, minor_version;
1285 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1286 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1288 XTestGrabControl (spi_get_display (), True);
1291 /* calls to device-specific implementations and routines go here */
1292 /* register with: keyboard hardware code handler */
1293 /* register with: (translated) keystroke handler */
1295 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1296 &priv->xkb_major_extension_opcode,
1297 &priv->xkb_base_event_code,
1298 &priv->xkb_base_error_code, NULL, NULL);
1302 guint64 reserved = 0;
1303 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1304 XkbSelectEvents (spi_get_display (),
1306 XkbStateNotifyMask, XkbStateNotifyMask);
1307 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1309 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1311 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1313 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1315 /* don't use this one if there's a grab client! */
1316 gdk_error_trap_push ();
1317 XGrabKey (spi_get_display (), i, 0,
1318 gdk_x11_get_default_root_xwindow (),
1320 GrabModeSync, GrabModeSync);
1321 XSync (spi_get_display (), TRUE);
1322 XUngrabKey (spi_get_display (), i, 0,
1323 gdk_x11_get_default_root_xwindow ());
1324 if (!gdk_error_trap_pop ())
1334 priv->reserved_keycode = reserved;
1335 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1339 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1340 priv->reserved_keysym = XK_numbersign;
1342 #ifdef SPI_RESERVED_DEBUG
1344 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1345 fprintf (stderr, "%x\n", sym);
1346 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1348 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1353 gdk_window_add_filter (NULL, global_filter_fn, controller);
1355 gdk_window_set_events (gdk_get_default_root_window (),
1356 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1358 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1362 spi_key_set_contains_key (GSList *key_set,
1363 const Accessibility_DeviceEvent *key_event)
1371 g_print ("null key set!");
1375 len = g_slist_length (key_set);
1377 if (len == 0) /* special case, means "all keys/any key" */
1380 g_print ("anykey\n");
1385 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1387 Accessibility_KeyDefinition *kd = l->data;
1388 #ifdef SPI_KEYEVENT_DEBUG
1389 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1393 (int) key_event->id,
1394 (int) key_event->hw_code,
1395 key_event->event_string);
1397 if (kd->keysym == (dbus_uint32_t) key_event->id)
1401 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1405 if (key_event->event_string && key_event->event_string[0] &&
1406 !strcmp (kd->keystring, key_event->event_string))
1416 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1417 const Accessibility_DeviceEvent *event)
1419 if (types == 0) /* special case, means "all events/any event" */
1424 return (types & (1 << event->type));
1428 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1429 DEControllerKeyListener *listener,
1430 dbus_bool_t is_system_global)
1432 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1433 spi_key_set_contains_key (listener->keys, key_event) &&
1434 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1435 (is_system_global == listener->mode->global))
1446 spi_controller_notify_keylisteners (SpiDEController *controller,
1447 Accessibility_DeviceEvent *key_event,
1448 dbus_bool_t is_system_global)
1451 GSList *notify = NULL, *l2;
1452 GList **key_listeners = &controller->key_listeners;
1453 gboolean is_consumed;
1460 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1461 if (key_event->modifiers & _numlock_physical_mask)
1462 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1464 for (l = *key_listeners; l; l = l->next)
1466 DEControllerKeyListener *key_listener = l->data;
1468 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1470 /* we clone (don't dup) the listener, to avoid refcount inc. */
1471 notify = g_slist_prepend (notify,
1472 spi_key_listener_clone (key_listener));
1476 #ifdef SPI_KEYEVENT_DEBUG
1479 g_print ("no match for event\n");
1483 is_consumed = FALSE;
1484 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1486 DEControllerKeyListener *key_listener = l2->data;
1488 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1489 key_listener->mode->preemptive;
1491 spi_key_listener_clone_free (key_listener);
1494 for (; l2; l2 = l2->next)
1496 DEControllerKeyListener *key_listener = l2->data;
1497 spi_key_listener_clone_free (key_listener);
1498 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1501 g_slist_free (notify);
1504 if (is_consumed) g_message ("consumed\n");
1510 spi_clear_error_state (void)
1512 gboolean retval = spi_error_code != 0;
1517 static Accessibility_DeviceEvent
1518 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1520 Accessibility_DeviceEvent key_event;
1522 const int cbuf_bytes = 20;
1526 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1527 key_event.id = (dbus_int32_t)(keysym);
1528 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1529 if (((XEvent *) x_key_event)->type == KeyPress)
1531 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1535 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1537 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1538 key_event.is_text = FALSE;
1542 key_event.event_string = g_strdup ("space");
1545 key_event.event_string = g_strdup ("Tab");
1548 key_event.event_string = g_strdup ("Backspace");
1551 key_event.event_string = g_strdup ("Return");
1554 key_event.event_string = g_strdup ("Home");
1557 key_event.event_string = g_strdup ("Page_Down");
1560 key_event.event_string = g_strdup ("Page_Up");
1563 key_event.event_string = g_strdup ("F1");
1566 key_event.event_string = g_strdup ("F2");
1569 key_event.event_string = g_strdup ("F3");
1572 key_event.event_string = g_strdup ("F4");
1575 key_event.event_string = g_strdup ("F5");
1578 key_event.event_string = g_strdup ("F6");
1581 key_event.event_string = g_strdup ("F7");
1584 key_event.event_string = g_strdup ("F8");
1587 key_event.event_string = g_strdup ("F9");
1590 key_event.event_string = g_strdup ("F10");
1593 key_event.event_string = g_strdup ("F11");
1596 key_event.event_string = g_strdup ("F12");
1599 key_event.event_string = g_strdup ("End");
1602 key_event.event_string = g_strdup ("Escape");
1605 key_event.event_string = g_strdup ("Up");
1608 key_event.event_string = g_strdup ("Down");
1611 key_event.event_string = g_strdup ("Left");
1614 key_event.event_string = g_strdup ("Right");
1620 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1621 key_event.event_string = g_strdup (cbuf);
1622 c = keysym2ucs (keysym);
1623 if (c > 0 && !g_unichar_iscntrl (c))
1625 key_event.is_text = TRUE;
1626 /* incorrect for some composed chars? */
1631 key_event.event_string = g_strdup ("");
1635 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1636 #ifdef SPI_KEYEVENT_DEBUG
1638 char *pressed_str = "pressed";
1639 char *released_str = "released";
1642 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1643 state_ptr = pressed_str;
1645 state_ptr = released_str;
1648 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1649 (unsigned long) keysym,
1651 keysym ? (int) keysym : '*',
1652 (int) x_key_event->state,
1653 key_event.event_string,
1654 key_event.event_string[0],
1655 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1659 fprintf (stderr, "%s%c\n",
1660 (x_key_event->state & Mod1Mask)?"Alt-":"",
1661 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1662 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1663 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1664 #endif /* SPI_DEBUG */
1669 spi_controller_update_key_grabs (SpiDEController *controller,
1670 Accessibility_DeviceEvent *recv)
1673 gboolean update_failed = FALSE;
1674 KeyCode keycode = 0;
1676 g_return_val_if_fail (controller != NULL, FALSE);
1679 * masks known to work with default RH 7.1+:
1680 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1681 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1682 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1683 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1685 * ControlMask grabs are broken, must be in use already
1688 keycode = keycode_for_keysym (controller, recv->id, NULL);
1689 for (l = controller->keygrabs_list; l; l = next)
1692 gboolean re_issue_grab;
1693 DEControllerGrabMask *grab_mask = l->data;
1697 re_issue_grab = recv &&
1698 (recv->modifiers & grab_mask->mod_mask) &&
1699 (grab_mask->key_val == keycode);
1702 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1703 (long int) grab_mask->key_val,
1704 (long int) grab_mask->mod_mask,
1705 grab_mask->pending_add ? '+' : '.',
1706 grab_mask->pending_remove ? '-' : '.',
1707 re_issue_grab ? "re-issue": "");
1712 if (grab_mask->pending_add && grab_mask->pending_remove)
1716 else if (grab_mask->pending_remove)
1719 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1721 XUngrabKey (spi_get_display (),
1723 grab_mask->mod_mask,
1724 gdk_x11_get_default_root_xwindow ());
1728 else if (grab_mask->pending_add || re_issue_grab)
1732 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1734 XGrabKey (spi_get_display (),
1736 grab_mask->mod_mask,
1737 gdk_x11_get_default_root_xwindow (),
1741 XSync (spi_get_display (), False);
1742 update_failed = spi_clear_error_state ();
1743 if (update_failed) {
1744 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1749 grab_mask->pending_add = FALSE;
1750 grab_mask->pending_remove = FALSE;
1754 g_assert (grab_mask->ref_count <= 0);
1756 controller->keygrabs_list = g_list_delete_link (
1757 controller->keygrabs_list, l);
1759 spi_grab_mask_free (grab_mask);
1764 return ! update_failed;
1768 * Implemented GObject::finalize
1771 spi_device_event_controller_object_finalize (GObject *object)
1773 SpiDEController *controller;
1774 DEControllerPrivateData *private;
1775 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1776 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1778 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1780 /* disconnect any special listeners, get rid of outstanding keygrabs */
1781 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1784 if (controller->xevie_display != NULL)
1786 XevieEnd(controller->xevie_display);
1787 #ifdef SPI_KEYEVENT_DEBUG
1788 printf("XevieEnd(dpy) finished \n");
1793 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1794 if (private->xkb_desc)
1795 XkbFreeKeyboard (private->xkb_desc, 0, True);
1797 parent_class->finalize (object);
1801 * DBus Accessibility::DEController::registerKeystrokeListener
1802 * method implementation
1804 static DBusMessage *
1805 impl_register_keystroke_listener (DBusConnection *bus,
1806 DBusMessage *message,
1809 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1810 DEControllerKeyListener *dec_listener;
1811 DBusMessageIter iter, iter_array;
1813 GSList *keys = NULL;
1814 dbus_int32_t mask, type;
1815 Accessibility_EventListenerMode *mode;
1820 dbus_message_iter_init(message, &iter);
1821 // TODO: verify type signature
1822 dbus_message_iter_get_basic(&iter, &path);
1823 dbus_message_iter_next(&iter);
1824 dbus_message_iter_recurse(&iter, &iter_array);
1825 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1827 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1828 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))
1832 kd->keystring = g_strdup (keystring);
1833 keys = g_slist_append(keys, kd);
1835 dbus_message_iter_next(&iter);
1836 dbus_message_iter_get_basic(&iter, &mask);
1837 dbus_message_iter_next(&iter);
1838 if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
1839 dbus_message_iter_get_basic(&iter, &type);
1842 dbus_message_iter_recurse(&iter, &iter_array);
1843 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1846 dbus_message_iter_get_basic (&iter_array, &t);
1848 dbus_message_iter_next (&iter_array);
1850 dbus_message_iter_next (&iter_array);
1852 dbus_message_iter_next(&iter);
1853 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1856 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);
1859 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1860 dbus_message_get_sender(message), path, (unsigned long) mask);
1862 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1863 ret = spi_controller_register_device_listener (
1864 controller, (DEControllerListener *) dec_listener);
1865 reply = dbus_message_new_method_return (message);
1868 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1874 * DBus Accessibility::DEController::registerDeviceEventListener
1875 * method implementation
1877 static DBusMessage *
1878 impl_register_device_listener (DBusConnection *bus,
1879 DBusMessage *message,
1882 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1883 DEControllerListener *dec_listener;
1886 dbus_int32_t event_types;
1890 dbus_error_init(&error);
1891 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1893 return droute_invalid_arguments_error (message);
1895 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1896 ret = spi_controller_register_device_listener (
1897 controller, (DEControllerListener *) dec_listener);
1898 reply = dbus_message_new_method_return (message);
1901 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1907 DBusConnection *bus;
1908 DEControllerListener *listener;
1909 } RemoveListenerClosure;
1911 static SpiReEntrantContinue
1912 remove_listener_cb (GList * const *list,
1915 DEControllerListener *listener = (*list)->data;
1916 RemoveListenerClosure *ctx = user_data;
1918 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1919 !strcmp(ctx->listener->path, listener->path))
1921 spi_re_entrant_list_delete_link (list);
1922 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1923 spi_dec_listener_free (listener);
1926 return SPI_RE_ENTRANT_CONTINUE;
1929 static SpiReEntrantContinue
1930 copy_key_listener_cb (GList * const *list,
1933 DEControllerKeyListener *key_listener = (*list)->data;
1934 RemoveListenerClosure *ctx = user_data;
1936 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1937 !strcmp(ctx->listener->path, key_listener->listener.path))
1939 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1940 DEControllerKeyListener *ctx_key_listener =
1941 (DEControllerKeyListener *) ctx->listener;
1942 keylist_free (ctx_key_listener->keys);
1943 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1946 return SPI_RE_ENTRANT_CONTINUE;
1950 spi_controller_deregister_device_listener (SpiDEController *controller,
1951 DEControllerListener *listener)
1953 RemoveListenerClosure ctx;
1955 ctx.bus = controller->bus;
1956 ctx.listener = listener;
1958 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1959 remove_listener_cb, &ctx);
1963 spi_deregister_controller_key_listener (SpiDEController *controller,
1964 DEControllerKeyListener *key_listener)
1966 RemoveListenerClosure ctx;
1968 ctx.bus = controller->bus;
1969 ctx.listener = (DEControllerListener *) key_listener;
1971 /* special case, copy keyset from existing controller list entry */
1972 if (g_slist_length(key_listener->keys) == 0)
1974 spi_re_entrant_list_foreach (&controller->key_listeners,
1975 copy_key_listener_cb, &ctx);
1978 spi_controller_deregister_global_keygrabs (controller, key_listener);
1980 spi_re_entrant_list_foreach (&controller->key_listeners,
1981 remove_listener_cb, &ctx);
1986 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1990 for (l = controller->mouse_listeners; l; l = tmp)
1992 DEControllerListener *listener = l->data;
1994 if (!strcmp (listener->bus_name, bus_name))
1996 spi_controller_deregister_device_listener (controller, listener);
1999 for (l = controller->key_listeners; l; l = tmp)
2001 DEControllerKeyListener *key_listener = l->data;
2003 if (!strcmp (key_listener->listener.bus_name, bus_name))
2005 spi_deregister_controller_key_listener (controller, key_listener);
2011 * DBus Accessibility::DEController::deregisterKeystrokeListener
2012 * method implementation
2014 static DBusMessage *
2015 impl_deregister_keystroke_listener (DBusConnection *bus,
2016 DBusMessage *message,
2019 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2020 DEControllerKeyListener *key_listener;
2021 DBusMessageIter iter, iter_array;
2023 GSList *keys = NULL;
2024 dbus_int32_t mask, type;
2027 dbus_message_iter_init(message, &iter);
2028 // TODO: verify type signature
2029 dbus_message_iter_get_basic(&iter, &path);
2030 dbus_message_iter_next(&iter);
2031 dbus_message_iter_recurse(&iter, &iter_array);
2032 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2034 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2037 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))
2041 kd->keystring = g_strdup (keystring);
2042 keys = g_slist_append(keys, kd);
2044 dbus_message_iter_next(&iter);
2045 dbus_message_iter_get_basic(&iter, &mask);
2046 dbus_message_iter_next(&iter);
2047 dbus_message_iter_get_basic(&iter, &type);
2048 dbus_message_iter_next(&iter);
2049 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2050 #ifdef SPI_DEREGISTER_DEBUG
2051 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2052 (void *) l, (unsigned long) mask->value);
2055 spi_deregister_controller_key_listener (controller, key_listener);
2057 spi_dec_listener_free ((DEControllerListener *) key_listener);
2058 reply = dbus_message_new_method_return (message);
2063 * DBus Accessibility::DEController::deregisterDeviceEventListener
2064 * method implementation
2066 static DBusMessage *
2067 impl_deregister_device_listener (DBusConnection *bus,
2068 DBusMessage *message,
2071 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2072 DEControllerListener *listener;
2075 dbus_int32_t event_types;
2078 dbus_error_init(&error);
2079 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2081 return droute_invalid_arguments_error (message);
2083 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2084 spi_controller_deregister_device_listener (
2085 controller, listener);
2086 reply = dbus_message_new_method_return (message);
2090 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2092 unsigned int retval = 0;
2093 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2094 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2096 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2097 retval = XkbGetSlowKeysDelay (spi_get_display (),
2098 XkbUseCoreKbd, &bounce_delay);
2100 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2102 Status s = XkbGetControls (spi_get_display (),
2103 XkbAllControlsMask, priv->xkb_desc);
2106 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2107 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2112 #ifdef SPI_XKB_DEBUG
2113 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2118 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2120 unsigned int retval = 0;
2121 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2122 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2124 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2125 retval = XkbGetBounceKeysDelay (spi_get_display (),
2126 XkbUseCoreKbd, &bounce_delay);
2128 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2130 Status s = XkbGetControls (spi_get_display (),
2131 XkbAllControlsMask, priv->xkb_desc);
2134 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2135 retval = priv->xkb_desc->ctrls->debounce_delay;
2140 #ifdef SPI_XKB_DEBUG
2141 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2147 dec_synth_keycode_press (SpiDEController *controller,
2148 unsigned int keycode)
2150 unsigned int time = CurrentTime;
2151 unsigned int bounce_delay;
2152 unsigned int elapsed_msec;
2154 DEControllerPrivateData *priv =
2155 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2156 spi_dec_private_quark);
2157 if (keycode == priv->last_release_keycode)
2159 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2162 gettimeofday (&tv, NULL);
2164 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2165 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2166 #ifdef SPI_XKB_DEBUG
2167 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2168 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2170 #ifdef THIS_IS_BROKEN
2171 if (elapsed_msec < bounce_delay)
2172 time = bounce_delay - elapsed_msec + 1;
2174 time = bounce_delay + 10;
2175 /* fudge for broken XTest */
2177 #ifdef SPI_XKB_DEBUG
2178 fprintf (stderr, "waiting %d ms\n", time);
2182 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2183 priv->last_press_keycode = keycode;
2184 XFlush (spi_get_display ());
2185 XSync (spi_get_display (), False);
2186 gettimeofday (&priv->last_press_time, NULL);
2191 dec_synth_keycode_release (SpiDEController *controller,
2192 unsigned int keycode)
2194 unsigned int time = CurrentTime;
2195 unsigned int slow_delay;
2196 unsigned int elapsed_msec;
2198 DEControllerPrivateData *priv =
2199 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2200 spi_dec_private_quark);
2201 if (keycode == priv->last_press_keycode)
2203 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2206 gettimeofday (&tv, NULL);
2208 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2209 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2210 #ifdef SPI_XKB_DEBUG
2211 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2212 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2214 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2215 if (elapsed_msec < slow_delay)
2216 time = slow_delay - elapsed_msec + 1;
2218 time = slow_delay + 10;
2219 /* our XTest seems broken, we have to add slop as above */
2221 #ifdef SPI_XKB_DEBUG
2222 fprintf (stderr, "waiting %d ms\n", time);
2226 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2227 priv->last_release_keycode = keycode;
2228 XSync (spi_get_display (), False);
2229 gettimeofday (&priv->last_release_time, NULL);
2234 dec_get_modifier_state (SpiDEController *controller)
2236 return mouse_mask_state;
2240 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2242 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2243 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2245 if (priv->have_xkb) {
2246 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2247 modifiers, modifiers);
2250 for (mod_index=0;mod_index<8;mod_index++)
2251 if (modifiers & (1<<mod_index))
2252 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2258 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2260 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2261 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2263 if (priv->have_xkb) {
2264 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2268 for (mod_index=0;mod_index<8;mod_index++)
2269 if (modifiers & (1<<mod_index))
2270 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2276 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2278 return ucs2keysym ((long) unichar);
2282 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2284 KeyCode key_synth_code;
2285 unsigned int modifiers, synth_mods, lock_mods;
2287 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2289 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2291 /* TODO: set the modifiers accordingly! */
2292 modifiers = dec_get_modifier_state (controller);
2293 /* side-effect; we may unset mousebutton modifiers here! */
2296 if (synth_mods != modifiers) {
2297 lock_mods = synth_mods & ~modifiers;
2298 dec_lock_modifiers (controller, lock_mods);
2300 dec_synth_keycode_press (controller, key_synth_code);
2301 dec_synth_keycode_release (controller, key_synth_code);
2303 if (synth_mods != modifiers)
2304 dec_unlock_modifiers (controller, lock_mods);
2310 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2312 /* probably we need to create and inject an XIM handler eventually. */
2313 /* for now, try to match the string to existing
2314 * keycode+modifier states.
2318 gunichar unichar = 0;
2320 gboolean retval = TRUE;
2323 maxlen = strlen (keystring) + 1;
2324 keysyms = g_new0 (KeySym, maxlen);
2325 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2330 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2332 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2337 mbytes = g_unichar_to_utf8 (unichar, bytes);
2338 bytes[mbytes] = '\0';
2340 fprintf (stderr, "[unichar %s]", bytes);
2342 keysym = dec_keysym_for_unichar (controller, unichar);
2343 if (keysym == NoSymbol) {
2345 fprintf (stderr, "no keysym for %s", bytes);
2350 keysyms[i++] = keysym;
2351 keystring = g_utf8_next_char (keystring);
2354 XSynchronize (spi_get_display (), TRUE);
2355 for (i = 0; keysyms[i]; ++i) {
2356 if (!dec_synth_keysym (controller, keysyms[i])) {
2358 fprintf (stderr, "could not synthesize %c\n",
2365 XSynchronize (spi_get_display (), FALSE);
2374 * DBus Accessibility::DEController::registerKeystrokeListener
2375 * method implementation
2377 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2379 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2381 dbus_int32_t keycode;
2383 dbus_uint32_t synth_type;
2386 DEControllerPrivateData *priv;
2389 dbus_error_init(&error);
2390 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2392 return droute_invalid_arguments_error (message);
2396 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2397 (long) keycode, (int) synth_type);
2399 /* TODO: hide/wrap/remove X dependency */
2402 * TODO: when initializing, query for XTest extension before using,
2403 * and fall back to XSendEvent() if XTest is not available.
2406 gdk_error_trap_push ();
2408 priv = (DEControllerPrivateData *)
2409 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2411 if (!priv->have_xkb && xmkeymap==NULL) {
2412 xmkeymap = XGetModifierMapping(spi_get_display ());
2417 case Accessibility_KEY_PRESS:
2418 dec_synth_keycode_press (controller, keycode);
2420 case Accessibility_KEY_PRESSRELEASE:
2421 dec_synth_keycode_press (controller, keycode);
2422 case Accessibility_KEY_RELEASE:
2423 dec_synth_keycode_release (controller, keycode);
2425 case Accessibility_KEY_SYM:
2426 #ifdef SPI_XKB_DEBUG
2427 fprintf (stderr, "KeySym synthesis\n");
2430 * note: we are using long for 'keycode'
2431 * in our arg list; it can contain either
2432 * a keycode or a keysym.
2434 dec_synth_keysym (controller, (KeySym) keycode);
2436 case Accessibility_KEY_STRING:
2437 if (!dec_synth_keystring (controller, keystring))
2438 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2442 if (synth_type == Accessibility_KEY_SYM) {
2446 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2448 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2450 spi_dec_clear_unlatch_pending (controller);
2452 reply = dbus_message_new_method_return (message);
2456 /* Accessibility::DEController::generateMouseEvent */
2457 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2465 gboolean err = FALSE;
2466 Display *display = spi_get_display ();
2468 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2470 return droute_invalid_arguments_error (message);
2474 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2475 eventName, (long int) x, (long int) y);
2477 switch (eventName[0])
2480 switch (eventName[1])
2482 /* TODO: check number of buttons before parsing */
2503 if (x != -1 && y != -1)
2505 XTestFakeMotionEvent (display, DefaultScreen (display),
2508 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2509 if (eventName[2] == 'c')
2510 XTestFakeButtonEvent (display, button, FALSE, 1);
2511 else if (eventName[2] == 'd')
2513 XTestFakeButtonEvent (display, button, FALSE, 1);
2514 XTestFakeButtonEvent (display, button, TRUE, 2);
2515 XTestFakeButtonEvent (display, button, FALSE, 3);
2519 case 'r': /* relative motion */
2520 XTestFakeRelativeMotionEvent (display, x, y, 0);
2522 case 'a': /* absolute motion */
2523 XTestFakeMotionEvent (display, DefaultScreen (display),
2527 reply = dbus_message_new_method_return (message);
2531 /* Accessibility::DEController::notifyListenersSync */
2532 static DBusMessage *
2533 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2535 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2536 Accessibility_DeviceEvent event;
2540 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2542 return droute_invalid_arguments_error (message);
2545 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2546 controller, (int) event.id);
2548 ret = spi_controller_notify_keylisteners (controller,
2549 (Accessibility_DeviceEvent *)
2552 reply = dbus_message_new_method_return (message);
2555 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2560 static DBusMessage *
2561 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2563 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2564 Accessibility_DeviceEvent event;
2567 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2569 return droute_invalid_arguments_error (message);
2572 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2573 controller, (int) event.id);
2575 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2577 reply = dbus_message_new_method_return (message);
2582 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2584 GObjectClass * object_class = (GObjectClass *) klass;
2586 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2588 object_class->finalize = spi_device_event_controller_object_finalize;
2590 if (!spi_dec_private_quark)
2591 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2595 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2601 handle_io (GIOChannel *source,
2602 GIOCondition condition,
2605 SpiDEController *controller = (SpiDEController *) data;
2606 gboolean is_consumed = FALSE;
2609 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2611 if (ev.type == KeyPress || ev.type == KeyRelease)
2612 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2615 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2620 #endif /* HAVE_XEVIE */
2623 spi_device_event_controller_init (SpiDEController *device_event_controller)
2628 #endif /* HAVE_XEVIE */
2630 DEControllerPrivateData *private;
2631 device_event_controller->key_listeners = NULL;
2632 device_event_controller->mouse_listeners = NULL;
2633 device_event_controller->keygrabs_list = NULL;
2634 device_event_controller->xevie_display = NULL;
2637 device_event_controller->xevie_display = XOpenDisplay(NULL);
2639 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2641 #ifdef SPI_KEYEVENT_DEBUG
2642 fprintf (stderr, "XevieStart() success \n");
2644 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2646 fd = ConnectionNumber(device_event_controller->xevie_display);
2647 ioc = g_io_channel_unix_new (fd);
2648 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2649 g_io_channel_unref (ioc);
2653 device_event_controller->xevie_display = NULL;
2654 #ifdef SPI_KEYEVENT_DEBUG
2655 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2658 #endif /* HAVE_XEVIE */
2660 private = g_new0 (DEControllerPrivateData, 1);
2661 gettimeofday (&private->last_press_time, NULL);
2662 gettimeofday (&private->last_release_time, NULL);
2663 g_object_set_qdata (G_OBJECT (device_event_controller),
2664 spi_dec_private_quark,
2666 spi_controller_register_with_devices (device_event_controller);
2670 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2671 const XEvent *event)
2673 Accessibility_DeviceEvent key_event;
2676 g_assert (event->type == KeyPress || event->type == KeyRelease);
2678 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2680 if (controller->xevie_display == NULL)
2681 spi_controller_update_key_grabs (controller, &key_event);
2683 /* relay to listeners, and decide whether to consume it or not */
2684 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2685 g_free(key_event.event_string);
2691 is_key_released (KeyCode code)
2696 XQueryKeymap (spi_get_display (), keys);
2697 down = BIT (keys, code);
2702 check_release (gpointer data)
2705 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2706 KeyCode code = event->hw_code;
2708 released = is_key_released (code);
2712 check_release_handler = 0;
2713 event->type = Accessibility_KEY_RELEASED_EVENT;
2714 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2716 return (released == 0);
2719 static void wait_for_release_event (XEvent *event,
2720 SpiDEController *controller)
2722 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2723 saved_controller = controller;
2724 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2727 static DRouteMethod dev_methods[] =
2729 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2730 { impl_register_device_listener, "registerDeviceListener" },
2731 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2732 { impl_deregister_device_listener, "deregisterDeviceListener" },
2733 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2734 { impl_generate_mouse_event, "generateMouseEvent" },
2735 { impl_notify_listeners_sync, "notifyListenersSync" },
2736 { impl_notify_listeners_async, "notifyListenersAsync" },
2741 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus, DRouteContext *droute)
2743 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2746 dec->registry = g_object_ref (reg);
2749 path = droute_add_one (droute,
2750 "/org/freedesktop/atspi/registry/deviceeventcontroller",
2753 droute_path_add_interface (path,
2754 SPI_DBUS_INTERFACE_DEC,
2758 spi_dec_init_mouse_listener (dec);
2759 /* TODO: kill mouse listener on finalize */