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 <dbus/dbus.h>
57 #include "de-marshaller.h"
60 #include "deviceeventcontroller.h"
61 #include "reentrant-list.h"
63 #include "introspection.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;
84 typedef struct _SpiPoint SpiPoint;
85 static SpiPoint last_mouse_pos_static = {0, 0};
86 static SpiPoint *last_mouse_pos = &last_mouse_pos_static;
87 static unsigned int mouse_mask_state = 0;
88 static unsigned int mouse_button_mask =
89 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
90 static unsigned int key_modifier_mask =
91 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
92 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
94 static GQuark spi_dec_private_quark = 0;
95 static XModifierKeymap* xmkeymap = NULL;
97 static gboolean have_mouse_listener = FALSE;
98 static gboolean have_mouse_event_listener = FALSE;
100 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
104 SPI_DEVICE_TYPE_MOUSE,
105 SPI_DEVICE_TYPE_LAST_DEFINED
106 } SpiDeviceTypeCategory;
109 guint ref_count : 30;
110 guint pending_add : 1;
111 guint pending_remove : 1;
113 Accessibility_ControllerEventMask mod_mask;
114 dbus_uint32_t key_val; /* KeyCode */
115 } DEControllerGrabMask;
120 SpiDeviceTypeCategory type;
122 } DEControllerListener;
125 DEControllerListener listener;
128 Accessibility_ControllerEventMask mask;
129 Accessibility_EventListenerMode *mode;
130 } DEControllerKeyListener;
133 unsigned int last_press_keycode;
134 unsigned int last_release_keycode;
135 struct timeval last_press_time;
136 struct timeval last_release_time;
138 int xkb_major_extension_opcode;
139 int xkb_base_event_code;
140 int xkb_base_error_code;
141 unsigned int xkb_latch_mask;
142 unsigned int pending_xkb_mod_relatch_mask;
144 KeyCode reserved_keycode;
145 KeySym reserved_keysym;
146 guint reserved_reset_timeout;
147 } DEControllerPrivateData;
149 static void spi_controller_register_with_devices (SpiDEController *controller);
150 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
151 Accessibility_DeviceEvent *recv);
152 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
153 DEControllerListener *l);
154 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
155 const XEvent *event);
156 static void spi_controller_deregister_device_listener (SpiDEController *controller,
157 DEControllerListener *listener);
158 static void spi_deregister_controller_key_listener (SpiDEController *controller,
159 DEControllerKeyListener *key_listener);
160 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
161 const Accessibility_DeviceEvent *event);
163 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
164 const Accessibility_DeviceEvent *event);
165 static gboolean spi_clear_error_state (void);
166 static gboolean spi_dec_poll_mouse_moved (gpointer data);
167 static gboolean spi_dec_poll_mouse_moving (gpointer data);
168 static gboolean spi_dec_poll_mouse_idle (gpointer data);
170 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
173 invalid_arguments_error (DBusMessage *message)
178 errmsg= g_strdup_printf (
179 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
180 dbus_message_get_member (message),
181 dbus_message_get_signature (message),
182 dbus_message_get_interface (message));
183 reply = dbus_message_new_error (message,
184 DBUS_ERROR_INVALID_ARGS,
190 /* Private methods */
192 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
194 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
198 dbus_error_init (&error);
199 dbus_bus_add_match (bus, match, &error);
201 return !dbus_error_is_set (&error);
207 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
209 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
213 dbus_error_init (&error);
214 dbus_bus_remove_match (bus, match, &error);
216 return !dbus_error_is_set (&error);
222 keysym_mod_mask (KeySym keysym, KeyCode keycode)
224 /* we really should use XKB and look directly at the keymap */
225 /* this is very inelegant */
226 Display *display = spi_get_display ();
227 unsigned int mods_rtn = 0;
228 unsigned int retval = 0;
231 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
232 (sym_rtn == keysym)) {
235 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
236 (sym_rtn == keysym)) {
239 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
240 (sym_rtn == keysym)) {
243 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
244 (sym_rtn == keysym)) {
247 else if (XkbLookupKeySym (display, keycode,
248 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
249 (sym_rtn == keysym)) {
250 retval = (Mod2Mask | ShiftMask);
252 else if (XkbLookupKeySym (display, keycode,
253 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
254 (sym_rtn == keysym)) {
255 retval = (Mod3Mask | ShiftMask);
257 else if (XkbLookupKeySym (display, keycode,
258 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
259 (sym_rtn == keysym)) {
260 retval = (Mod4Mask | ShiftMask);
268 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
271 Display *dpy = spi_get_display ();
273 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
275 fprintf (stderr, "ERROR getting map\n");
279 if (desc && desc->map)
281 gint offset = desc->map->key_sym_map[keycode].offset;
282 desc->map->syms[offset] = keysym;
286 fprintf (stderr, "Error changing key map: empty server structure\n");
288 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
290 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
291 * would be far preferable.
292 * HOWEVER it does not seem to work using XFree 4.3.
294 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
297 XkbFreeKeyboard (desc, 0, TRUE);
306 spi_dec_reset_reserved (gpointer data)
308 DEControllerPrivateData *priv = data;
309 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
310 priv->reserved_reset_timeout = 0;
315 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
318 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
321 DEControllerPrivateData *priv = (DEControllerPrivateData *)
322 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
323 /* if there's no keycode available, fix it */
324 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
326 keycode = priv->reserved_keycode;
328 * queue a timer to restore the old keycode. Ugly, but required
329 * due to races / asynchronous X delivery.
330 * Long-term fix is to extend the X keymap here instead of replace entries.
332 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
338 *modmask = keysym_mod_mask (keysym, keycode);
342 static DEControllerGrabMask *
343 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
345 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
347 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
349 clone->ref_count = 1;
350 clone->pending_add = TRUE;
351 clone->pending_remove = FALSE;
357 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
363 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
365 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
366 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
374 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
379 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
381 DEControllerPrivateData *priv =
382 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
384 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
385 priv->xkb_latch_mask);
387 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
391 spi_dec_clear_unlatch_pending (SpiDEController *controller)
393 DEControllerPrivateData *priv =
394 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
395 priv->xkb_latch_mask = 0;
398 static void emit(SpiDEController *controller, const char *interface, const char *name, const char *minor, int a1, int a2)
400 DBusMessage *signal = NULL;
401 DBusMessageIter iter, iter_struct, iter_variant;
403 const char *path = SPI_DBUS_PATH_ROOT;
404 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
406 signal = dbus_message_new_signal (path, interface, name);
408 dbus_message_iter_init_append (signal, &iter);
410 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
411 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a1);
412 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a2);
413 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
414 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
415 dbus_message_iter_close_container (&iter, &iter_variant);
417 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
419 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
420 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
421 dbus_message_iter_close_container (&iter, &iter_struct);
423 dbus_connection_send (controller->bus, signal, NULL);
424 dbus_message_unref (signal);
428 spi_dec_button_update_and_emit (SpiDEController *controller,
431 Accessibility_DeviceEvent mouse_e;
432 gchar event_detail[3];
433 gboolean is_consumed = FALSE;
435 if ((mask_return & mouse_button_mask) !=
436 (mouse_mask_state & mouse_button_mask))
438 int button_number = 0;
439 gboolean is_down = False;
441 if (!(mask_return & Button1Mask) &&
442 (mouse_mask_state & Button1Mask))
444 mouse_mask_state &= ~Button1Mask;
447 else if ((mask_return & Button1Mask) &&
448 !(mouse_mask_state & Button1Mask))
450 mouse_mask_state |= Button1Mask;
454 else if (!(mask_return & Button2Mask) &&
455 (mouse_mask_state & Button2Mask))
457 mouse_mask_state &= ~Button2Mask;
460 else if ((mask_return & Button2Mask) &&
461 !(mouse_mask_state & Button2Mask))
463 mouse_mask_state |= Button2Mask;
467 else if (!(mask_return & Button3Mask) &&
468 (mouse_mask_state & Button3Mask))
470 mouse_mask_state &= ~Button3Mask;
473 else if ((mask_return & Button3Mask) &&
474 !(mouse_mask_state & Button3Mask))
476 mouse_mask_state |= Button3Mask;
480 else if (!(mask_return & Button4Mask) &&
481 (mouse_mask_state & Button4Mask))
483 mouse_mask_state &= ~Button4Mask;
486 else if ((mask_return & Button4Mask) &&
487 !(mouse_mask_state & Button4Mask))
489 mouse_mask_state |= Button4Mask;
493 else if (!(mask_return & Button5Mask) &&
494 (mouse_mask_state & Button5Mask))
496 mouse_mask_state &= ~Button5Mask;
499 else if ((mask_return & Button5Mask) &&
500 !(mouse_mask_state & Button5Mask))
502 mouse_mask_state |= Button5Mask;
508 fprintf (stderr, "Button %d %s\n",
509 button_number, (is_down) ? "Pressed" : "Released");
511 snprintf (event_detail, 3, "%d%c", button_number,
512 (is_down) ? 'p' : 'r');
513 /* TODO: FIXME distinguish between physical and
516 mouse_e.type = (is_down) ?
517 Accessibility_BUTTON_PRESSED_EVENT :
518 Accessibility_BUTTON_RELEASED_EVENT;
519 mouse_e.id = button_number;
520 mouse_e.hw_code = button_number;
521 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
522 mouse_e.timestamp = 0;
523 mouse_e.event_string = "";
524 mouse_e.is_text = FALSE;
526 spi_controller_notify_mouselisteners (controller,
530 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
531 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, x, y);
534 spi_dec_set_unlatch_pending (controller, mask_return);
546 spi_dec_mouse_check (SpiDEController *controller,
547 int *x, int *y, gboolean *moved)
549 int win_x_return,win_y_return;
550 unsigned int mask_return;
551 Window root_return, child_return;
552 Display *display = spi_get_display ();
555 XQueryPointer(display, DefaultRootWindow (display),
556 &root_return, &child_return,
558 &win_x_return, &win_y_return, &mask_return);
560 * Since many clients grab the pointer, and X goes an automatic
561 * pointer grab on mouse-down, we often must detect mouse button events
562 * by polling rather than via a button grab.
563 * The while loop (rather than if) is used since it's possible that
564 * multiple buttons have changed state since we last checked.
566 if (mask_return != mouse_mask_state)
568 while (spi_dec_button_update_and_emit (controller, mask_return));
571 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
573 // TODO: combine these two signals?
574 dbus_uint32_t ix = *x, iy = *y;
575 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Abs", "", ix, iy);
576 ix -= last_mouse_pos->x;
577 iy -= last_mouse_pos->y;
578 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Rel", "", ix, iy);
579 last_mouse_pos->x = *x;
580 last_mouse_pos->y = *y;
592 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
595 dbus_uint32_t d1, d2;
598 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
599 prev_mask, current_mask);
602 /* set bits for the virtual modifiers like NUMLOCK */
603 if (prev_mask & _numlock_physical_mask)
604 prev_mask |= SPI_KEYMASK_NUMLOCK;
605 if (current_mask & _numlock_physical_mask)
606 current_mask |= SPI_KEYMASK_NUMLOCK;
608 d1 = prev_mask & key_modifier_mask;
609 d2 = current_mask & key_modifier_mask;
610 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "Modifiers", "", d1, d2);
614 spi_dec_poll_mouse_moved (gpointer data)
616 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
621 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
623 if ((mask_return & key_modifier_mask) !=
624 (mouse_mask_state & key_modifier_mask))
626 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
627 mouse_mask_state = mask_return;
634 spi_dec_poll_mouse_idle (gpointer data)
636 if (!have_mouse_event_listener && !have_mouse_listener)
638 else if (!spi_dec_poll_mouse_moved (data))
642 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
648 spi_dec_poll_mouse_moving (gpointer data)
650 if (!have_mouse_event_listener && !have_mouse_listener)
652 else if (spi_dec_poll_mouse_moved (data))
656 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
661 #ifdef WE_NEED_UGRAB_MOUSE
663 spi_dec_ungrab_mouse (gpointer data)
665 Display *display = spi_get_display ();
668 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
669 XDefaultRootWindow (spi_get_display ()));
676 spi_dec_init_mouse_listener (SpiDEController *dec)
679 Display *display = spi_get_display ();
683 if (XGrabButton (display, AnyButton, AnyModifier,
684 spi_get_root_window (),
685 True, ButtonPressMask | ButtonReleaseMask,
686 GrabModeSync, GrabModeAsync, None, None) != Success) {
688 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
692 XSync (display, False);
694 fprintf (stderr, "mouse buttons grabbed\n");
701 * Eventually we can use this to make the marshalling of mask types
702 * more sane, but for now we just use this to detect
703 * the use of 'virtual' masks such as numlock and convert them to
704 * system-specific mask values (i.e. ModMask).
707 static Accessibility_ControllerEventMask
708 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
710 Accessibility_ControllerEventMask tmp_mask;
711 gboolean has_numlock;
713 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
717 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
718 tmp_mask |= _numlock_physical_mask;
724 static DEControllerKeyListener *
725 spi_dec_key_listener_new (const char *bus_name,
728 const Accessibility_ControllerEventMask mask,
729 const dbus_uint32_t types,
730 const Accessibility_EventListenerMode *mode)
732 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
733 key_listener->listener.bus_name = g_strdup(bus_name);
734 key_listener->listener.path = g_strdup(path);
735 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
736 key_listener->keys = keys;
737 key_listener->mask = spi_dec_translate_mask (mask);
738 key_listener->listener.types = types;
741 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
742 memcpy(key_listener->mode, mode, sizeof(*mode));
745 key_listener->mode = NULL;
748 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
749 (unsigned int) key_listener->mask,
750 (int) (mode ? mode->global : 0),
751 (void *) key_listener->keys,
752 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
758 static DEControllerListener *
759 spi_dec_listener_new (const char *bus_name,
763 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
764 listener->bus_name = g_strdup(bus_name);
765 listener->path = g_strdup(path);
766 listener->type = SPI_DEVICE_TYPE_MOUSE;
767 listener->types = types;
771 static DEControllerListener *
772 spi_listener_clone (DEControllerListener *listener)
774 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
775 clone->bus_name = g_strdup (listener->bus_name);
776 clone->path = g_strdup (listener->path);
777 clone->type = listener->type;
778 clone->types = listener->types;
782 static GSList *keylist_clone (GSList *s)
787 for (l = s; l; l = g_slist_next(l))
789 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
792 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
793 kd->keycode = kds->keycode;
794 kd->keysym = kds->keysym;
795 kd->keystring = g_strdup(kds->keystring);
796 d = g_slist_append(d, kd);
802 static DEControllerKeyListener *
803 spi_key_listener_clone (DEControllerKeyListener *key_listener)
805 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
806 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
807 clone->listener.path = g_strdup (key_listener->listener.path);
808 clone->listener.type = SPI_DEVICE_TYPE_KBD;
809 clone->keys = keylist_clone (key_listener->keys);
810 clone->mask = key_listener->mask;
811 clone->listener.types = key_listener->listener.types;
812 if (key_listener->mode)
814 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
815 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
822 static void keylist_free(GSList *keys)
826 for (l = keys; l; l = g_slist_next(l))
828 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
829 g_free(kd->keystring);
836 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
838 keylist_free(key_listener->keys);
839 if (key_listener->mode) g_free(key_listener->mode);
840 g_free (key_listener);
844 spi_key_listener_clone_free (DEControllerKeyListener *clone)
846 spi_key_listener_data_free (clone);
850 spi_listener_clone_free (DEControllerListener *clone)
852 g_free (clone->path);
853 g_free (clone->bus_name);
858 spi_dec_listener_free (DEControllerListener *listener)
860 g_free (listener->bus_name);
861 g_free (listener->path);
862 if (listener->type == SPI_DEVICE_TYPE_KBD)
863 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
867 _register_keygrab (SpiDEController *controller,
868 DEControllerGrabMask *grab_mask)
872 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
873 spi_grab_mask_compare_values);
876 DEControllerGrabMask *cur_mask = l->data;
878 cur_mask->ref_count++;
879 if (cur_mask->pending_remove)
881 cur_mask->pending_remove = FALSE;
886 controller->keygrabs_list =
887 g_list_prepend (controller->keygrabs_list,
888 spi_grab_mask_clone (grab_mask));
893 _deregister_keygrab (SpiDEController *controller,
894 DEControllerGrabMask *grab_mask)
898 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
899 spi_grab_mask_compare_values);
903 DEControllerGrabMask *cur_mask = l->data;
905 cur_mask->ref_count--;
906 if (cur_mask->ref_count <= 0)
908 cur_mask->pending_remove = TRUE;
914 handle_keygrab (SpiDEController *controller,
915 DEControllerKeyListener *key_listener,
916 void (*process_cb) (SpiDEController *controller,
917 DEControllerGrabMask *grab_mask))
919 DEControllerGrabMask grab_mask = { 0 };
921 grab_mask.mod_mask = key_listener->mask;
922 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
924 grab_mask.key_val = AnyKey;
926 fprintf (stderr, "AnyKey grab!");
928 process_cb (controller, &grab_mask);
934 for (l = key_listener->keys; l; l = g_slist_next(l))
936 Accessibility_KeyDefinition *keydef = l->data;
937 long int key_val = keydef->keysym;
938 /* X Grabs require keycodes, not keysyms */
939 if (keydef->keystring && keydef->keystring[0])
941 key_val = XStringToKeysym(keydef->keystring);
945 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
949 key_val = keydef->keycode;
951 grab_mask.key_val = key_val;
952 process_cb (controller, &grab_mask);
958 spi_controller_register_global_keygrabs (SpiDEController *controller,
959 DEControllerKeyListener *key_listener)
961 handle_keygrab (controller, key_listener, _register_keygrab);
962 if (controller->xevie_display == NULL)
963 return spi_controller_update_key_grabs (controller, NULL);
969 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
970 DEControllerKeyListener *key_listener)
972 handle_keygrab (controller, key_listener, _deregister_keygrab);
973 if (controller->xevie_display == NULL)
974 spi_controller_update_key_grabs (controller, NULL);
978 spi_controller_register_device_listener (SpiDEController *controller,
979 DEControllerListener *listener)
981 DEControllerKeyListener *key_listener;
983 switch (listener->type) {
984 case SPI_DEVICE_TYPE_KBD:
985 key_listener = (DEControllerKeyListener *) listener;
987 controller->key_listeners = g_list_prepend (controller->key_listeners,
989 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
990 if (key_listener->mode->global)
992 return spi_controller_register_global_keygrabs (controller, key_listener);
997 case SPI_DEVICE_TYPE_MOUSE:
998 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
999 if (!have_mouse_listener)
1001 have_mouse_listener = TRUE;
1002 if (!have_mouse_event_listener)
1003 g_timeout_add (100, spi_dec_poll_mouse_idle, controller);
1005 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
1014 set_reply (DBusPendingCall *pending, void *user_data)
1016 void **replyptr = (void **)user_data;
1018 *replyptr = dbus_pending_call_steal_reply (pending);
1021 static DBusMessage *
1022 send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, int timeout, DBusError *error)
1024 DBusPendingCall *pending;
1025 DBusMessage *reply = NULL;
1027 if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
1031 dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
1034 if (!dbus_connection_read_write_dispatch (bus, timeout))
1040 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
1041 SpiRegistry *registry,
1042 DEControllerListener *listener,
1043 const Accessibility_DeviceEvent *key_event)
1045 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
1047 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
1050 dbus_bool_t consumed = FALSE;
1052 dbus_error_init(&error);
1053 if (spi_dbus_marshal_deviceEvent(message, key_event))
1055 DBusMessage *reply = send_and_allow_reentry (controller->bus, message, 1000, &error);
1059 dbus_error_init(&error);
1060 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1061 dbus_message_unref(reply);
1064 dbus_message_unref(message);
1069 spi_controller_notify_mouselisteners (SpiDEController *controller,
1070 const Accessibility_DeviceEvent *event)
1073 GSList *notify = NULL, *l2;
1074 GList **listeners = &controller->mouse_listeners;
1075 gboolean is_consumed;
1076 #ifdef SPI_KEYEVENT_DEBUG
1077 gboolean found = FALSE;
1084 for (l = *listeners; l; l = l->next)
1086 DEControllerListener *listener = l->data;
1088 if (spi_eventtype_seq_contains_event (listener->types, event))
1090 /* we clone (don't dup) the listener, to avoid refcount inc. */
1091 notify = g_slist_prepend (notify,
1092 spi_listener_clone (listener));
1093 #ifdef SPI_KEYEVENT_DEBUG
1099 #ifdef SPI_KEYEVENT_DEBUG
1102 g_print ("no match for event\n");
1106 is_consumed = FALSE;
1107 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1109 DEControllerListener *listener = l2->data;
1111 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1113 spi_listener_clone_free ((DEControllerListener *) l2->data);
1116 for (; l2; l2 = l2->next)
1118 DEControllerListener *listener = l2->data;
1119 spi_listener_clone_free (listener);
1120 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1123 g_slist_free (notify);
1126 if (is_consumed) g_message ("consumed\n");
1132 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1135 Accessibility_DeviceEvent mouse_e;
1136 gchar event_detail[3];
1137 gboolean is_consumed = FALSE;
1138 gboolean xkb_mod_unlatch_occurred;
1139 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1140 dbus_uint32_t ix, iy;
1142 int button = xbutton_event->button;
1144 unsigned int mouse_button_state = xbutton_event->state;
1149 mouse_button_state |= Button1Mask;
1152 mouse_button_state |= Button2Mask;
1155 mouse_button_state |= Button3Mask;
1158 mouse_button_state |= Button4Mask;
1161 mouse_button_state |= Button5Mask;
1165 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1166 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1169 fprintf (stderr, "mouse button %d %s (%x)\n",
1170 xbutton_event->button,
1171 (xevent->type == ButtonPress) ? "Press" : "Release",
1172 mouse_button_state);
1174 snprintf (event_detail, 3, "%d%c", button,
1175 (xevent->type == ButtonPress) ? 'p' : 'r');
1177 /* TODO: FIXME distinguish between physical and logical buttons */
1178 mouse_e.type = (xevent->type == ButtonPress) ?
1179 Accessibility_BUTTON_PRESSED_EVENT :
1180 Accessibility_BUTTON_RELEASED_EVENT;
1181 mouse_e.id = button;
1182 mouse_e.hw_code = button;
1183 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1184 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1185 mouse_e.event_string = "";
1186 mouse_e.is_text = FALSE;
1187 if ((mouse_button_state & mouse_button_mask) !=
1188 (mouse_mask_state & mouse_button_mask))
1190 if ((mouse_mask_state & key_modifier_mask) !=
1191 (mouse_button_state & key_modifier_mask))
1192 spi_dec_emit_modifier_event (controller,
1193 mouse_mask_state, mouse_button_state);
1194 mouse_mask_state = mouse_button_state;
1196 spi_controller_notify_mouselisteners (controller, &mouse_e);
1197 ix = last_mouse_pos->x;
1198 iy = last_mouse_pos->y;
1199 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, ix, iy);
1202 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1203 xevent->type == ButtonRelease);
1205 /* if client wants to consume this event, and XKB latch state was
1206 * unset by this button event, we reset it
1208 if (is_consumed && xkb_mod_unlatch_occurred)
1209 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1211 XAllowEvents (spi_get_display (),
1212 (is_consumed) ? SyncPointer : ReplayPointer,
1217 global_filter_fn (XEvent *xevent, void *data)
1219 SpiDEController *controller;
1220 DEControllerPrivateData *priv;
1221 Display *display = spi_get_display ();
1222 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1223 priv = (DEControllerPrivateData *)
1224 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1226 if (xevent->type == MappingNotify)
1229 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1231 if (controller->xevie_display == NULL)
1233 gboolean is_consumed;
1236 spi_device_event_controller_forward_key_event (controller, xevent);
1243 n_events = XPending (display);
1245 #ifdef SPI_KEYEVENT_DEBUG
1246 g_print ("Number of events pending: %d\n", n_events);
1248 for (i = 0; i < n_events; i++)
1250 XNextEvent (display, &next_event);
1251 if (next_event.type != KeyPress &&
1252 next_event.type != KeyRelease)
1253 g_warning ("Unexpected event type %d in queue", next_event.type);
1256 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1258 XUngrabKeyboard (display, CurrentTime);
1262 if (xevent->type == KeyPress)
1263 wait_for_release_event (xevent, controller);
1264 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1270 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1272 spi_device_event_controller_forward_mouse_event (controller, xevent);
1274 if (xevent->type == priv->xkb_base_event_code)
1276 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1277 /* ugly but probably necessary...*/
1278 XSynchronize (display, TRUE);
1280 if (xkb_ev->xkb_type == XkbStateNotify)
1282 XkbStateNotifyEvent *xkb_snev =
1283 (XkbStateNotifyEvent *) xkb_ev;
1284 /* check the mouse, to catch mouse events grabbed by
1285 * another client; in case we should revert this XKB delatch
1287 if (!priv->pending_xkb_mod_relatch_mask)
1291 spi_dec_mouse_check (controller, &x, &y, &moved);
1293 /* we check again, since the previous call may have
1294 changed this flag */
1295 if (priv->pending_xkb_mod_relatch_mask)
1297 unsigned int feedback_mask;
1298 #ifdef SPI_XKB_DEBUG
1299 fprintf (stderr, "relatching %x\n",
1300 priv->pending_xkb_mod_relatch_mask);
1302 /* temporarily turn off the latch bell, if it's on */
1303 XkbGetControls (display,
1304 XkbAccessXFeedbackMask,
1306 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1307 if (feedback_mask & XkbAX_StickyKeysFBMask)
1309 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1311 priv->xkb_desc->ctrls->ax_options
1312 &= ~(XkbAX_StickyKeysFBMask);
1313 XkbChangeControls (display, priv->xkb_desc, &changes);
1315 /* TODO: account for lock as well as latch */
1316 XkbLatchModifiers (display,
1318 priv->pending_xkb_mod_relatch_mask,
1319 priv->pending_xkb_mod_relatch_mask);
1320 if (feedback_mask & XkbAX_StickyKeysFBMask)
1322 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1324 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1325 XkbChangeControls (display, priv->xkb_desc, &changes);
1327 #ifdef SPI_XKB_DEBUG
1328 fprintf (stderr, "relatched %x\n",
1329 priv->pending_xkb_mod_relatch_mask);
1331 priv->pending_xkb_mod_relatch_mask = 0;
1335 priv->xkb_latch_mask = xkb_snev->latched_mods;
1338 XSynchronize (display, FALSE);
1345 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1347 if (error->error_code == BadAccess)
1349 g_message ("Could not complete key grab: grab already in use.\n");
1350 spi_error_code = BadAccess;
1355 return (*x_default_error_handler) (display, error);
1360 spi_controller_register_with_devices (SpiDEController *controller)
1362 DEControllerPrivateData *priv;
1363 int event_base, error_base, major_version, minor_version;
1365 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1366 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1368 XTestGrabControl (spi_get_display (), True);
1371 /* calls to device-specific implementations and routines go here */
1372 /* register with: keyboard hardware code handler */
1373 /* register with: (translated) keystroke handler */
1375 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1376 &priv->xkb_major_extension_opcode,
1377 &priv->xkb_base_event_code,
1378 &priv->xkb_base_error_code, NULL, NULL);
1382 guint64 reserved = 0;
1383 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1384 XkbSelectEvents (spi_get_display (),
1386 XkbStateNotifyMask, XkbStateNotifyMask);
1387 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1389 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1391 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1393 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1395 /* don't use this one if there's a grab client! */
1397 /* Runtime errors are generated from these functions,
1398 * that are then quashed. Equivalent to:
1405 spi_x_error_trap ();
1406 XGrabKey (spi_get_display (), i, 0,
1407 spi_get_root_window (),
1409 GrabModeSync, GrabModeSync);
1410 XSync (spi_get_display (), TRUE);
1411 XUngrabKey (spi_get_display (), i, 0,
1412 spi_get_root_window ());
1413 if (!spi_x_error_release ())
1423 priv->reserved_keycode = reserved;
1424 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1428 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1429 priv->reserved_keysym = XK_numbersign;
1431 #ifdef SPI_RESERVED_DEBUG
1433 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1434 fprintf (stderr, "%x\n", sym);
1435 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1437 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1442 spi_set_filter (global_filter_fn, controller);
1443 spi_set_events (KeyPressMask | KeyReleaseMask);
1445 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1449 spi_key_set_contains_key (GSList *key_set,
1450 const Accessibility_DeviceEvent *key_event)
1459 g_print ("null key set!\n");
1464 len = g_slist_length (key_set);
1466 if (len == 0) /* special case, means "all keys/any key" */
1469 g_print ("anykey\n");
1474 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1476 Accessibility_KeyDefinition *kd = l->data;
1477 #ifdef SPI_KEYEVENT_DEBUG
1478 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1482 (int) key_event->id,
1483 (int) key_event->hw_code,
1484 key_event->event_string);
1486 if (kd->keysym == (dbus_uint32_t) key_event->id)
1490 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1494 if (key_event->event_string && key_event->event_string[0] &&
1495 !strcmp (kd->keystring, key_event->event_string))
1505 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1506 const Accessibility_DeviceEvent *event)
1508 if (types == 0) /* special case, means "all events/any event" */
1513 return (types & (1 << event->type));
1517 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1518 DEControllerKeyListener *listener,
1519 dbus_bool_t is_system_global)
1521 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1522 spi_key_set_contains_key (listener->keys, key_event) &&
1523 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1524 (is_system_global == listener->mode->global))
1535 spi_controller_notify_keylisteners (SpiDEController *controller,
1536 Accessibility_DeviceEvent *key_event,
1537 dbus_bool_t is_system_global)
1540 GSList *notify = NULL, *l2;
1541 GList **key_listeners = &controller->key_listeners;
1542 gboolean is_consumed;
1549 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1550 if (key_event->modifiers & _numlock_physical_mask)
1551 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1553 for (l = *key_listeners; l; l = l->next)
1555 DEControllerKeyListener *key_listener = l->data;
1557 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1559 /* we clone (don't dup) the listener, to avoid refcount inc. */
1560 notify = g_slist_prepend (notify,
1561 spi_key_listener_clone (key_listener));
1565 #ifdef SPI_KEYEVENT_DEBUG
1568 g_print ("no match for event\n");
1572 is_consumed = FALSE;
1573 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1575 DEControllerKeyListener *key_listener = l2->data;
1577 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1578 key_listener->mode->preemptive;
1580 spi_key_listener_clone_free (key_listener);
1583 for (; l2; l2 = l2->next)
1585 DEControllerKeyListener *key_listener = l2->data;
1586 spi_key_listener_clone_free (key_listener);
1587 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1590 g_slist_free (notify);
1593 if (is_consumed) g_message ("consumed\n");
1599 spi_clear_error_state (void)
1601 gboolean retval = spi_error_code != 0;
1606 static Accessibility_DeviceEvent
1607 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1609 Accessibility_DeviceEvent key_event;
1611 const int cbuf_bytes = 20;
1615 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1616 key_event.id = (dbus_int32_t)(keysym);
1617 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1618 if (((XEvent *) x_key_event)->type == KeyPress)
1620 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1624 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1626 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1627 key_event.is_text = FALSE;
1631 key_event.event_string = g_strdup ("space");
1634 key_event.event_string = g_strdup ("Tab");
1637 key_event.event_string = g_strdup ("Backspace");
1640 key_event.event_string = g_strdup ("Return");
1643 key_event.event_string = g_strdup ("Home");
1646 key_event.event_string = g_strdup ("Page_Down");
1649 key_event.event_string = g_strdup ("Page_Up");
1652 key_event.event_string = g_strdup ("F1");
1655 key_event.event_string = g_strdup ("F2");
1658 key_event.event_string = g_strdup ("F3");
1661 key_event.event_string = g_strdup ("F4");
1664 key_event.event_string = g_strdup ("F5");
1667 key_event.event_string = g_strdup ("F6");
1670 key_event.event_string = g_strdup ("F7");
1673 key_event.event_string = g_strdup ("F8");
1676 key_event.event_string = g_strdup ("F9");
1679 key_event.event_string = g_strdup ("F10");
1682 key_event.event_string = g_strdup ("F11");
1685 key_event.event_string = g_strdup ("F12");
1688 key_event.event_string = g_strdup ("End");
1691 key_event.event_string = g_strdup ("Escape");
1694 key_event.event_string = g_strdup ("Up");
1697 key_event.event_string = g_strdup ("Down");
1700 key_event.event_string = g_strdup ("Left");
1703 key_event.event_string = g_strdup ("Right");
1709 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1710 key_event.event_string = g_strdup (cbuf);
1711 c = keysym2ucs (keysym);
1712 if (c > 0 && !g_unichar_iscntrl (c))
1714 key_event.is_text = TRUE;
1715 /* incorrect for some composed chars? */
1720 key_event.event_string = g_strdup ("");
1724 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1725 #ifdef SPI_KEYEVENT_DEBUG
1727 char *pressed_str = "pressed";
1728 char *released_str = "released";
1731 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1732 state_ptr = pressed_str;
1734 state_ptr = released_str;
1737 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1738 (unsigned long) keysym,
1740 keysym ? (int) keysym : '*',
1741 (int) x_key_event->state,
1742 key_event.event_string,
1743 key_event.event_string[0],
1744 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1748 fprintf (stderr, "%s%c\n",
1749 (x_key_event->state & Mod1Mask)?"Alt-":"",
1750 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1751 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1752 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1753 #endif /* SPI_DEBUG */
1758 spi_controller_update_key_grabs (SpiDEController *controller,
1759 Accessibility_DeviceEvent *recv)
1762 gboolean update_failed = FALSE;
1763 KeyCode keycode = 0;
1765 g_return_val_if_fail (controller != NULL, FALSE);
1768 * masks known to work with default RH 7.1+:
1769 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1770 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1771 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1772 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1774 * ControlMask grabs are broken, must be in use already
1777 keycode = keycode_for_keysym (controller, recv->id, NULL);
1778 for (l = controller->keygrabs_list; l; l = next)
1781 gboolean re_issue_grab;
1782 DEControllerGrabMask *grab_mask = l->data;
1786 re_issue_grab = recv &&
1787 (recv->modifiers & grab_mask->mod_mask) &&
1788 (grab_mask->key_val == keycode);
1791 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1792 (long int) grab_mask->key_val,
1793 (long int) grab_mask->mod_mask,
1794 grab_mask->pending_add ? '+' : '.',
1795 grab_mask->pending_remove ? '-' : '.',
1796 re_issue_grab ? "re-issue": "");
1801 if (grab_mask->pending_add && grab_mask->pending_remove)
1805 else if (grab_mask->pending_remove)
1808 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1810 XUngrabKey (spi_get_display (),
1812 grab_mask->mod_mask,
1813 spi_get_root_window ());
1817 else if (grab_mask->pending_add || re_issue_grab)
1821 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1823 XGrabKey (spi_get_display (),
1825 grab_mask->mod_mask,
1826 spi_get_root_window (),
1830 XSync (spi_get_display (), False);
1831 update_failed = spi_clear_error_state ();
1832 if (update_failed) {
1833 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1838 grab_mask->pending_add = FALSE;
1839 grab_mask->pending_remove = FALSE;
1843 g_assert (grab_mask->ref_count <= 0);
1845 controller->keygrabs_list = g_list_delete_link (
1846 controller->keygrabs_list, l);
1848 spi_grab_mask_free (grab_mask);
1853 return ! update_failed;
1857 * Implemented GObject::finalize
1860 spi_device_event_controller_object_finalize (GObject *object)
1862 SpiDEController *controller;
1863 DEControllerPrivateData *private;
1864 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1865 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1867 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1869 /* disconnect any special listeners, get rid of outstanding keygrabs */
1870 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1873 if (controller->xevie_display != NULL)
1875 XevieEnd(controller->xevie_display);
1876 #ifdef SPI_KEYEVENT_DEBUG
1877 printf("XevieEnd(dpy) finished \n");
1882 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1883 if (private->xkb_desc)
1884 XkbFreeKeyboard (private->xkb_desc, 0, True);
1886 parent_class->finalize (object);
1890 * DBus Accessibility::DEController::RegisterKeystrokeListener
1891 * method implementation
1893 static DBusMessage *
1894 impl_register_keystroke_listener (DBusConnection *bus,
1895 DBusMessage *message,
1898 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1899 DEControllerKeyListener *dec_listener;
1900 DBusMessageIter iter, iter_array;
1902 GSList *keys = NULL;
1903 dbus_int32_t mask, type;
1904 Accessibility_EventListenerMode *mode;
1906 DBusMessage *reply = NULL;
1909 dbus_message_iter_init(message, &iter);
1910 // TODO: verify type signature
1911 dbus_message_iter_get_basic(&iter, &path);
1912 dbus_message_iter_next(&iter);
1913 dbus_message_iter_recurse(&iter, &iter_array);
1914 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1916 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1917 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))
1921 kd->keystring = g_strdup (keystring);
1922 keys = g_slist_append(keys, kd);
1924 dbus_message_iter_next(&iter);
1925 dbus_message_iter_get_basic(&iter, &mask);
1926 dbus_message_iter_next(&iter);
1927 if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
1928 dbus_message_iter_get_basic(&iter, &type);
1931 dbus_message_iter_recurse(&iter, &iter_array);
1932 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1935 dbus_message_iter_get_basic (&iter_array, &t);
1937 dbus_message_iter_next (&iter_array);
1939 dbus_message_iter_next (&iter_array);
1941 dbus_message_iter_next(&iter);
1942 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1945 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);
1948 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1949 dbus_message_get_sender(message), path, (unsigned long) mask);
1951 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1952 ret = spi_controller_register_device_listener (
1953 controller, (DEControllerListener *) dec_listener);
1954 reply = dbus_message_new_method_return (message);
1957 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1963 * DBus Accessibility::DEController::RegisterDeviceEventListener
1964 * method implementation
1966 static DBusMessage *
1967 impl_register_device_event_listener (DBusConnection *bus,
1968 DBusMessage *message,
1971 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1972 DEControllerListener *dec_listener;
1975 dbus_int32_t event_types;
1977 DBusMessage *reply = NULL;
1979 dbus_error_init(&error);
1980 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1982 return invalid_arguments_error (message);
1984 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1985 ret = spi_controller_register_device_listener (
1986 controller, (DEControllerListener *) dec_listener);
1987 reply = dbus_message_new_method_return (message);
1990 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1996 DBusConnection *bus;
1997 DEControllerListener *listener;
1998 } RemoveListenerClosure;
2000 static SpiReEntrantContinue
2001 remove_listener_cb (GList * const *list,
2004 DEControllerListener *listener = (*list)->data;
2005 RemoveListenerClosure *ctx = user_data;
2007 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
2008 !strcmp(ctx->listener->path, listener->path))
2010 spi_re_entrant_list_delete_link (list);
2011 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
2012 spi_dec_listener_free (listener);
2015 return SPI_RE_ENTRANT_CONTINUE;
2018 static SpiReEntrantContinue
2019 copy_key_listener_cb (GList * const *list,
2022 DEControllerKeyListener *key_listener = (*list)->data;
2023 RemoveListenerClosure *ctx = user_data;
2025 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
2026 !strcmp(ctx->listener->path, key_listener->listener.path))
2028 /* TODO: FIXME aggregate keys in case the listener is registered twice */
2029 DEControllerKeyListener *ctx_key_listener =
2030 (DEControllerKeyListener *) ctx->listener;
2031 keylist_free (ctx_key_listener->keys);
2032 ctx_key_listener->keys = keylist_clone(key_listener->keys);
2035 return SPI_RE_ENTRANT_CONTINUE;
2039 spi_controller_deregister_device_listener (SpiDEController *controller,
2040 DEControllerListener *listener)
2042 RemoveListenerClosure ctx;
2044 ctx.bus = controller->bus;
2045 ctx.listener = listener;
2047 spi_re_entrant_list_foreach (&controller->mouse_listeners,
2048 remove_listener_cb, &ctx);
2049 if (!controller->mouse_listeners)
2050 have_mouse_listener = FALSE;
2054 spi_deregister_controller_key_listener (SpiDEController *controller,
2055 DEControllerKeyListener *key_listener)
2057 RemoveListenerClosure ctx;
2059 ctx.bus = controller->bus;
2060 ctx.listener = (DEControllerListener *) key_listener;
2062 /* special case, copy keyset from existing controller list entry */
2063 if (g_slist_length(key_listener->keys) == 0)
2065 spi_re_entrant_list_foreach (&controller->key_listeners,
2066 copy_key_listener_cb, &ctx);
2069 spi_controller_deregister_global_keygrabs (controller, key_listener);
2071 spi_re_entrant_list_foreach (&controller->key_listeners,
2072 remove_listener_cb, &ctx);
2077 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
2081 for (l = controller->mouse_listeners; l; l = tmp)
2083 DEControllerListener *listener = l->data;
2085 if (!strcmp (listener->bus_name, bus_name))
2087 spi_controller_deregister_device_listener (controller, listener);
2090 for (l = controller->key_listeners; l; l = tmp)
2092 DEControllerKeyListener *key_listener = l->data;
2094 if (!strcmp (key_listener->listener.bus_name, bus_name))
2096 spi_deregister_controller_key_listener (controller, key_listener);
2102 * DBus Accessibility::DEController::DeregisterKeystrokeListener
2103 * method implementation
2105 static DBusMessage *
2106 impl_deregister_keystroke_listener (DBusConnection *bus,
2107 DBusMessage *message,
2110 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2111 DEControllerKeyListener *key_listener;
2112 DBusMessageIter iter, iter_array;
2114 GSList *keys = NULL;
2115 dbus_int32_t mask, type;
2116 DBusMessage *reply = NULL;
2118 dbus_message_iter_init(message, &iter);
2119 // TODO: verify type signature
2120 dbus_message_iter_get_basic(&iter, &path);
2121 dbus_message_iter_next(&iter);
2122 dbus_message_iter_recurse(&iter, &iter_array);
2123 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2125 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2128 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))
2132 kd->keystring = g_strdup (keystring);
2133 keys = g_slist_append(keys, kd);
2135 dbus_message_iter_next(&iter);
2136 dbus_message_iter_get_basic(&iter, &mask);
2137 dbus_message_iter_next(&iter);
2138 dbus_message_iter_get_basic(&iter, &type);
2139 dbus_message_iter_next(&iter);
2140 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2141 #ifdef SPI_DEREGISTER_DEBUG
2142 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2143 (void *) l, (unsigned long) mask->value);
2146 spi_deregister_controller_key_listener (controller, key_listener);
2148 spi_dec_listener_free ((DEControllerListener *) key_listener);
2149 reply = dbus_message_new_method_return (message);
2154 * DBus Accessibility::DEController::DeregisterDeviceEventListener
2155 * method implementation
2157 static DBusMessage *
2158 impl_deregister_device_event_listener (DBusConnection *bus,
2159 DBusMessage *message,
2162 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2163 DEControllerListener *listener;
2166 dbus_int32_t event_types;
2167 DBusMessage *reply = NULL;
2169 dbus_error_init(&error);
2170 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2172 return invalid_arguments_error (message);
2174 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2175 spi_controller_deregister_device_listener (
2176 controller, listener);
2177 reply = dbus_message_new_method_return (message);
2181 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2183 unsigned int retval = 0;
2184 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2185 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2187 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2188 retval = XkbGetSlowKeysDelay (spi_get_display (),
2189 XkbUseCoreKbd, &bounce_delay);
2191 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2193 Status s = XkbGetControls (spi_get_display (),
2194 XkbAllControlsMask, priv->xkb_desc);
2197 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2198 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2203 #ifdef SPI_XKB_DEBUG
2204 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2209 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2211 unsigned int retval = 0;
2212 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2213 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2215 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2216 retval = XkbGetBounceKeysDelay (spi_get_display (),
2217 XkbUseCoreKbd, &bounce_delay);
2219 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2221 Status s = XkbGetControls (spi_get_display (),
2222 XkbAllControlsMask, priv->xkb_desc);
2225 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2226 retval = priv->xkb_desc->ctrls->debounce_delay;
2231 #ifdef SPI_XKB_DEBUG
2232 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2238 dec_synth_keycode_press (SpiDEController *controller,
2239 unsigned int keycode)
2241 unsigned int time = CurrentTime;
2242 unsigned int bounce_delay;
2243 unsigned int elapsed_msec;
2245 DEControllerPrivateData *priv =
2246 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2247 spi_dec_private_quark);
2248 if (keycode == priv->last_release_keycode)
2250 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2253 gettimeofday (&tv, NULL);
2255 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2256 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2257 #ifdef SPI_XKB_DEBUG
2258 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2259 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2261 #ifdef THIS_IS_BROKEN
2262 if (elapsed_msec < bounce_delay)
2263 time = bounce_delay - elapsed_msec + 1;
2265 time = bounce_delay + 10;
2266 /* fudge for broken XTest */
2268 #ifdef SPI_XKB_DEBUG
2269 fprintf (stderr, "waiting %d ms\n", time);
2273 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2274 priv->last_press_keycode = keycode;
2275 XFlush (spi_get_display ());
2276 XSync (spi_get_display (), False);
2277 gettimeofday (&priv->last_press_time, NULL);
2282 dec_synth_keycode_release (SpiDEController *controller,
2283 unsigned int keycode)
2285 unsigned int time = CurrentTime;
2286 unsigned int slow_delay;
2287 unsigned int elapsed_msec;
2289 DEControllerPrivateData *priv =
2290 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2291 spi_dec_private_quark);
2292 if (keycode == priv->last_press_keycode)
2294 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2297 gettimeofday (&tv, NULL);
2299 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2300 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2301 #ifdef SPI_XKB_DEBUG
2302 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2303 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2305 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2306 if (elapsed_msec < slow_delay)
2307 time = slow_delay - elapsed_msec + 1;
2309 time = slow_delay + 10;
2310 /* our XTest seems broken, we have to add slop as above */
2312 #ifdef SPI_XKB_DEBUG
2313 fprintf (stderr, "waiting %d ms\n", time);
2317 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2318 priv->last_release_keycode = keycode;
2319 XSync (spi_get_display (), False);
2320 gettimeofday (&priv->last_release_time, NULL);
2325 dec_get_modifier_state (SpiDEController *controller)
2327 return mouse_mask_state;
2331 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2333 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2334 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2336 if (priv->have_xkb) {
2337 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2338 modifiers, modifiers);
2341 for (mod_index=0;mod_index<8;mod_index++)
2342 if (modifiers & (1<<mod_index))
2343 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2349 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2351 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2352 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2354 if (priv->have_xkb) {
2355 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2359 for (mod_index=0;mod_index<8;mod_index++)
2360 if (modifiers & (1<<mod_index))
2361 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2367 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2369 return ucs2keysym ((long) unichar);
2373 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2375 KeyCode key_synth_code;
2376 unsigned int modifiers, synth_mods, lock_mods;
2378 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2380 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2382 /* TODO: set the modifiers accordingly! */
2383 modifiers = dec_get_modifier_state (controller);
2384 /* side-effect; we may unset mousebutton modifiers here! */
2387 if (synth_mods != modifiers) {
2388 lock_mods = synth_mods & ~modifiers;
2389 dec_lock_modifiers (controller, lock_mods);
2391 dec_synth_keycode_press (controller, key_synth_code);
2392 dec_synth_keycode_release (controller, key_synth_code);
2394 if (synth_mods != modifiers)
2395 dec_unlock_modifiers (controller, lock_mods);
2401 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2403 /* probably we need to create and inject an XIM handler eventually. */
2404 /* for now, try to match the string to existing
2405 * keycode+modifier states.
2409 gunichar unichar = 0;
2411 gboolean retval = TRUE;
2414 maxlen = strlen (keystring) + 1;
2415 keysyms = g_new0 (KeySym, maxlen);
2416 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2421 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2423 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2428 mbytes = g_unichar_to_utf8 (unichar, bytes);
2429 bytes[mbytes] = '\0';
2431 fprintf (stderr, "[unichar %s]", bytes);
2433 keysym = dec_keysym_for_unichar (controller, unichar);
2434 if (keysym == NoSymbol) {
2436 fprintf (stderr, "no keysym for %s", bytes);
2441 keysyms[i++] = keysym;
2442 keystring = g_utf8_next_char (keystring);
2445 XSynchronize (spi_get_display (), TRUE);
2446 for (i = 0; keysyms[i]; ++i) {
2447 if (!dec_synth_keysym (controller, keysyms[i])) {
2449 fprintf (stderr, "could not synthesize %c\n",
2456 XSynchronize (spi_get_display (), FALSE);
2465 * DBus Accessibility::DEController::RegisterKeystrokeListener
2466 * method implementation
2468 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2470 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2472 dbus_int32_t keycode;
2474 dbus_uint32_t synth_type;
2477 DEControllerPrivateData *priv;
2478 DBusMessage *reply = NULL;
2480 dbus_error_init(&error);
2481 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2483 return invalid_arguments_error (message);
2487 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2488 (long) keycode, (int) synth_type);
2490 /* TODO: hide/wrap/remove X dependency */
2493 * TODO: when initializing, query for XTest extension before using,
2494 * and fall back to XSendEvent() if XTest is not available.
2497 spi_x_error_trap ();
2499 priv = (DEControllerPrivateData *)
2500 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2502 if (!priv->have_xkb && xmkeymap==NULL) {
2503 xmkeymap = XGetModifierMapping(spi_get_display ());
2508 case Accessibility_KEY_PRESS:
2509 dec_synth_keycode_press (controller, keycode);
2511 case Accessibility_KEY_PRESSRELEASE:
2512 dec_synth_keycode_press (controller, keycode);
2513 case Accessibility_KEY_RELEASE:
2514 dec_synth_keycode_release (controller, keycode);
2516 case Accessibility_KEY_SYM:
2517 #ifdef SPI_XKB_DEBUG
2518 fprintf (stderr, "KeySym synthesis\n");
2521 * note: we are using long for 'keycode'
2522 * in our arg list; it can contain either
2523 * a keycode or a keysym.
2525 dec_synth_keysym (controller, (KeySym) keycode);
2527 case Accessibility_KEY_STRING:
2528 if (!dec_synth_keystring (controller, keystring))
2529 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2533 if (synth_type == Accessibility_KEY_SYM) {
2537 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2539 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2541 spi_dec_clear_unlatch_pending (controller);
2543 reply = dbus_message_new_method_return (message);
2547 /* Accessibility::DEController::GenerateMouseEvent */
2548 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2554 DBusMessage *reply = NULL;
2556 gboolean err = FALSE;
2557 Display *display = spi_get_display ();
2559 dbus_error_init (&error);
2560 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2562 return invalid_arguments_error (message);
2566 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2567 eventName, (long int) x, (long int) y);
2569 switch (eventName[0])
2572 switch (eventName[1])
2574 /* TODO: check number of buttons before parsing */
2595 if (x != -1 && y != -1)
2597 XTestFakeMotionEvent (display, DefaultScreen (display),
2600 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2601 if (eventName[2] == 'c')
2602 XTestFakeButtonEvent (display, button, FALSE, 1);
2603 else if (eventName[2] == 'd')
2605 XTestFakeButtonEvent (display, button, FALSE, 1);
2606 XTestFakeButtonEvent (display, button, TRUE, 2);
2607 XTestFakeButtonEvent (display, button, FALSE, 3);
2611 case 'r': /* relative motion */
2612 XTestFakeRelativeMotionEvent (display, x, y, 0);
2614 case 'a': /* absolute motion */
2615 XTestFakeMotionEvent (display, DefaultScreen (display),
2619 reply = dbus_message_new_method_return (message);
2623 /* Accessibility::DEController::NotifyListenersSync */
2624 static DBusMessage *
2625 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2627 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2628 Accessibility_DeviceEvent event;
2630 DBusMessage *reply = NULL;
2632 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2634 return invalid_arguments_error (message);
2637 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2638 controller, (int) event.id);
2640 ret = spi_controller_notify_keylisteners (controller,
2641 (Accessibility_DeviceEvent *)
2644 reply = dbus_message_new_method_return (message);
2647 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2652 static DBusMessage *
2653 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2655 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2656 Accessibility_DeviceEvent event;
2657 DBusMessage *reply = NULL;
2659 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2661 return invalid_arguments_error (message);
2664 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2665 controller, (int) event.id);
2667 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2669 reply = dbus_message_new_method_return (message);
2674 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2676 GObjectClass * object_class = (GObjectClass *) klass;
2678 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2680 object_class->finalize = spi_device_event_controller_object_finalize;
2682 if (!spi_dec_private_quark)
2683 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2687 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2693 handle_io (GIOChannel *source,
2694 GIOCondition condition,
2697 SpiDEController *controller = (SpiDEController *) data;
2698 gboolean is_consumed = FALSE;
2701 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2703 if (ev.type == KeyPress || ev.type == KeyRelease)
2704 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2707 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2712 #endif /* HAVE_XEVIE */
2715 spi_device_event_controller_init (SpiDEController *device_event_controller)
2717 spi_events_init (spi_get_display());
2721 #endif /* HAVE_XEVIE */
2723 DEControllerPrivateData *private;
2724 device_event_controller->key_listeners = NULL;
2725 device_event_controller->mouse_listeners = NULL;
2726 device_event_controller->keygrabs_list = NULL;
2727 device_event_controller->xevie_display = NULL;
2730 device_event_controller->xevie_display = XOpenDisplay(NULL);
2732 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2734 #ifdef SPI_KEYEVENT_DEBUG
2735 fprintf (stderr, "XevieStart() success \n");
2737 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2739 fd = ConnectionNumber(device_event_controller->xevie_display);
2740 ioc = g_io_channel_unix_new (fd);
2741 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2742 g_io_channel_unref (ioc);
2746 device_event_controller->xevie_display = NULL;
2747 #ifdef SPI_KEYEVENT_DEBUG
2748 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2751 #endif /* HAVE_XEVIE */
2753 private = g_new0 (DEControllerPrivateData, 1);
2754 gettimeofday (&private->last_press_time, NULL);
2755 gettimeofday (&private->last_release_time, NULL);
2756 g_object_set_qdata (G_OBJECT (device_event_controller),
2757 spi_dec_private_quark,
2759 spi_controller_register_with_devices (device_event_controller);
2760 device_event_controller->message_queue = g_queue_new ();
2761 saved_controller = device_event_controller;
2765 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2766 const XEvent *event)
2768 Accessibility_DeviceEvent key_event;
2771 g_assert (event->type == KeyPress || event->type == KeyRelease);
2773 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2775 if (controller->xevie_display == NULL)
2776 spi_controller_update_key_grabs (controller, &key_event);
2778 /* relay to listeners, and decide whether to consume it or not */
2779 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2780 g_free(key_event.event_string);
2786 is_key_released (KeyCode code)
2791 XQueryKeymap (spi_get_display (), keys);
2792 down = BIT (keys, code);
2797 check_release (gpointer data)
2800 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2801 KeyCode code = event->hw_code;
2803 released = is_key_released (code);
2807 check_release_handler = 0;
2808 event->type = Accessibility_KEY_RELEASED_EVENT;
2809 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2811 return (released == 0);
2814 static void wait_for_release_event (XEvent *event,
2815 SpiDEController *controller)
2817 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2818 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2821 /*---------------------------------------------------------------------------*/
2823 static const char *introspection_header =
2824 "<?xml version=\"1.0\"?>\n";
2826 static const char *introspection_node_element =
2827 "<node name=\"%s\">\n";
2829 static const char *introspection_footer =
2832 static DBusMessage *
2833 impl_Introspect (DBusConnection * bus,
2834 DBusMessage * message, void *user_data)
2840 const gchar *pathstr = SPI_DBUS_PATH_DEC;
2844 output = g_string_new(introspection_header);
2846 g_string_append_printf(output, introspection_node_element, pathstr);
2848 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
2850 g_string_append(output, introspection_footer);
2851 final = g_string_free(output, FALSE);
2853 reply = dbus_message_new_method_return (message);
2854 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
2860 /*---------------------------------------------------------------------------*/
2863 handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
2865 const gchar *iface = dbus_message_get_interface (message);
2866 const gchar *member = dbus_message_get_member (message);
2867 const gint type = dbus_message_get_type (message);
2868 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2869 DBusMessage *reply = NULL;
2871 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
2873 result = DBUS_HANDLER_RESULT_HANDLED;
2874 if (!strcmp (member, "RegisterKeystrokeListener"))
2875 reply = impl_register_keystroke_listener (bus, message, user_data);
2876 else if (!strcmp (member, "RegisterDeviceEventListener"))
2877 reply = impl_register_device_event_listener (bus, message, user_data);
2878 else if (!strcmp (member, "DeregisterKeystrokeListener"))
2879 reply = impl_deregister_keystroke_listener (bus, message, user_data);
2880 else if (!strcmp (member, "DeregisterDeviceEventListener"))
2881 reply = impl_deregister_device_event_listener (bus, message, user_data);
2882 else if (!strcmp (member, "GenerateKeyboardEvent"))
2883 reply = impl_generate_keyboard_event (bus, message, user_data);
2884 else if (!strcmp (member, "GenerateMouseEvent"))
2885 reply = impl_generate_mouse_event (bus, message, user_data);
2886 else if (!strcmp (member, "NotifyListenersSync"))
2887 reply = impl_notify_listeners_sync (bus, message, user_data);
2888 else if (!strcmp (member, "NotifyListenersAsync"))
2889 reply = impl_notify_listeners_async (bus, message, user_data);
2891 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2894 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
2896 result = DBUS_HANDLER_RESULT_HANDLED;
2897 if (!strcmp (member, "Introspect"))
2898 reply = impl_Introspect (bus, message, user_data);
2900 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2903 if (result == DBUS_HANDLER_RESULT_HANDLED)
2907 reply = dbus_message_new_method_return (message);
2910 dbus_connection_send (bus, reply, NULL);
2911 dbus_message_unref (reply);
2916 message_queue_dispatch (gpointer data)
2918 saved_controller->message_queue_idle = 0;
2919 while (!g_queue_is_empty (saved_controller->message_queue))
2921 DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
2922 data = g_queue_pop_head (saved_controller->message_queue);
2923 handle_dec_method_from_idle (saved_controller->bus, message, data);
2924 dbus_message_unref (message);
2929 static DBusHandlerResult
2930 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2932 const gchar *iface = dbus_message_get_interface (message);
2933 const gchar *member = dbus_message_get_member (message);
2934 const gint type = dbus_message_get_type (message);
2936 /* Check for basic reasons not to handle */
2937 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2940 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2942 dbus_message_ref (message);
2943 g_queue_push_tail (saved_controller->message_queue, message);
2944 g_queue_push_tail (saved_controller->message_queue, user_data);
2945 if (!saved_controller->message_queue_idle)
2946 saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2947 return DBUS_HANDLER_RESULT_HANDLED;
2950 static DBusObjectPathVTable dec_vtable =
2954 NULL, NULL, NULL, NULL
2958 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2960 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2962 dec->registry = g_object_ref (reg);
2963 reg->dec = g_object_ref (dec);
2966 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2968 spi_dec_init_mouse_listener (dec);
2974 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2976 if (!have_mouse_event_listener)
2978 have_mouse_event_listener = TRUE;
2979 if (!have_mouse_listener)
2980 g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2985 spi_device_event_controller_stop_poll_mouse (void)
2987 have_mouse_event_listener = FALSE;