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 <droute/droute.h>
61 #include "de-marshaller.h"
63 #include "deviceeventcontroller.h"
64 #include "reentrant-list.h"
66 KeySym ucs2keysym (long ucs);
67 long keysym2ucs(KeySym keysym);
69 #define CHECK_RELEASE_DELAY 20
70 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
71 static guint check_release_handler = 0;
72 static Accessibility_DeviceEvent pressed_event;
73 static SpiDEController *saved_controller;
74 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
76 /* Our parent Gtk object type */
77 #define PARENT_TYPE G_TYPE_OBJECT
79 /* A pointer to our parent object class */
80 static int spi_error_code = 0;
81 static GdkPoint last_mouse_pos_static = {0, 0};
82 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
83 static unsigned int mouse_mask_state = 0;
84 static unsigned int mouse_button_mask =
85 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
86 static unsigned int key_modifier_mask =
87 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
88 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
90 static GQuark spi_dec_private_quark = 0;
91 static XModifierKeymap* xmkeymap = NULL;
93 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
97 SPI_DEVICE_TYPE_MOUSE,
98 SPI_DEVICE_TYPE_LAST_DEFINED
99 } SpiDeviceTypeCategory;
102 guint ref_count : 30;
103 guint pending_add : 1;
104 guint pending_remove : 1;
106 Accessibility_ControllerEventMask mod_mask;
107 dbus_uint32_t key_val; /* KeyCode */
108 } DEControllerGrabMask;
113 SpiDeviceTypeCategory type;
115 } DEControllerListener;
118 DEControllerListener listener;
121 Accessibility_ControllerEventMask mask;
122 Accessibility_EventListenerMode *mode;
123 } DEControllerKeyListener;
126 unsigned int last_press_keycode;
127 unsigned int last_release_keycode;
128 struct timeval last_press_time;
129 struct timeval last_release_time;
131 int xkb_major_extension_opcode;
132 int xkb_base_event_code;
133 int xkb_base_error_code;
134 unsigned int xkb_latch_mask;
135 unsigned int pending_xkb_mod_relatch_mask;
137 KeyCode reserved_keycode;
138 KeySym reserved_keysym;
139 guint reserved_reset_timeout;
140 } DEControllerPrivateData;
142 static void spi_controller_register_with_devices (SpiDEController *controller);
143 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
144 Accessibility_DeviceEvent *recv);
145 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
146 DEControllerListener *l);
147 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
148 const XEvent *event);
149 static void spi_controller_deregister_device_listener (SpiDEController *controller,
150 DEControllerListener *listener);
151 static void spi_deregister_controller_key_listener (SpiDEController *controller,
152 DEControllerKeyListener *key_listener);
153 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
154 const Accessibility_DeviceEvent *event);
156 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
157 const Accessibility_DeviceEvent *event);
158 static gboolean spi_clear_error_state (void);
159 static gboolean spi_dec_poll_mouse_moved (gpointer data);
160 static gboolean spi_dec_poll_mouse_moving (gpointer data);
161 static gboolean spi_dec_poll_mouse_idle (gpointer data);
163 #define spi_get_display() GDK_DISPLAY()
165 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
167 /* Private methods */
169 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
171 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
175 dbus_error_init (&error);
176 dbus_bus_add_match (bus, match, &error);
178 return !dbus_error_is_set (&error);
184 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
186 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
190 dbus_error_init (&error);
191 dbus_bus_remove_match (bus, match, &error);
193 return !dbus_error_is_set (&error);
199 keysym_mod_mask (KeySym keysym, KeyCode keycode)
201 /* we really should use XKB and look directly at the keymap */
202 /* this is very inelegant */
203 Display *display = spi_get_display ();
204 unsigned int mods_rtn = 0;
205 unsigned int retval = 0;
208 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
209 (sym_rtn == keysym)) {
212 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
213 (sym_rtn == keysym)) {
216 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
217 (sym_rtn == keysym)) {
220 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
221 (sym_rtn == keysym)) {
224 else if (XkbLookupKeySym (display, keycode,
225 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
226 (sym_rtn == keysym)) {
227 retval = (Mod2Mask | ShiftMask);
229 else if (XkbLookupKeySym (display, keycode,
230 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
231 (sym_rtn == keysym)) {
232 retval = (Mod3Mask | ShiftMask);
234 else if (XkbLookupKeySym (display, keycode,
235 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
236 (sym_rtn == keysym)) {
237 retval = (Mod4Mask | ShiftMask);
245 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
248 Display *dpy = spi_get_display ();
250 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
252 fprintf (stderr, "ERROR getting map\n");
256 if (desc && desc->map)
258 gint offset = desc->map->key_sym_map[keycode].offset;
259 desc->map->syms[offset] = keysym;
263 fprintf (stderr, "Error changing key map: empty server structure\n");
265 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
267 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
268 * would be far preferable.
269 * HOWEVER it does not seem to work using XFree 4.3.
271 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
274 XkbFreeKeyboard (desc, 0, TRUE);
283 spi_dec_reset_reserved (gpointer data)
285 DEControllerPrivateData *priv = data;
286 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
287 priv->reserved_reset_timeout = 0;
292 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
295 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
298 DEControllerPrivateData *priv = (DEControllerPrivateData *)
299 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
300 /* if there's no keycode available, fix it */
301 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
303 keycode = priv->reserved_keycode;
305 * queue a timer to restore the old keycode. Ugly, but required
306 * due to races / asynchronous X delivery.
307 * Long-term fix is to extend the X keymap here instead of replace entries.
309 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
315 *modmask = keysym_mod_mask (keysym, keycode);
319 static DEControllerGrabMask *
320 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
322 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
324 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
326 clone->ref_count = 1;
327 clone->pending_add = TRUE;
328 clone->pending_remove = FALSE;
334 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
340 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
342 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
343 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
351 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
356 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
358 DEControllerPrivateData *priv =
359 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
361 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
362 priv->xkb_latch_mask);
364 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
368 spi_dec_clear_unlatch_pending (SpiDEController *controller)
370 DEControllerPrivateData *priv =
371 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
372 priv->xkb_latch_mask = 0;
375 static void emit(SpiDEController *controller, const char *interface, const char *name, int a1, int a2)
377 DBusMessage *signal = NULL;
378 DBusMessageIter iter, iter_variant;
380 const char *minor = "";
381 const char *path = SPI_DBUS_PATH_DESKTOP;
383 signal = dbus_message_new_signal (path, interface, name);
385 dbus_message_iter_init_append (signal, &iter);
387 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
388 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a1);
389 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a2);
390 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
391 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
392 dbus_message_iter_close_container (&iter, &iter_variant);
394 dbus_connection_send (controller->bus, signal, NULL);
398 spi_dec_button_update_and_emit (SpiDEController *controller,
401 Accessibility_DeviceEvent mouse_e;
402 gchar event_detail[24];
403 gboolean is_consumed = FALSE;
405 if ((mask_return & mouse_button_mask) !=
406 (mouse_mask_state & mouse_button_mask))
408 int button_number = 0;
409 gboolean is_down = False;
411 if (!(mask_return & Button1Mask) &&
412 (mouse_mask_state & Button1Mask))
414 mouse_mask_state &= ~Button1Mask;
417 else if ((mask_return & Button1Mask) &&
418 !(mouse_mask_state & Button1Mask))
420 mouse_mask_state |= Button1Mask;
424 else if (!(mask_return & Button2Mask) &&
425 (mouse_mask_state & Button2Mask))
427 mouse_mask_state &= ~Button2Mask;
430 else if ((mask_return & Button2Mask) &&
431 !(mouse_mask_state & Button2Mask))
433 mouse_mask_state |= Button2Mask;
437 else if (!(mask_return & Button3Mask) &&
438 (mouse_mask_state & Button3Mask))
440 mouse_mask_state &= ~Button3Mask;
443 else if ((mask_return & Button3Mask) &&
444 !(mouse_mask_state & Button3Mask))
446 mouse_mask_state |= Button3Mask;
450 else if (!(mask_return & Button4Mask) &&
451 (mouse_mask_state & Button4Mask))
453 mouse_mask_state &= ~Button4Mask;
456 else if ((mask_return & Button4Mask) &&
457 !(mouse_mask_state & Button4Mask))
459 mouse_mask_state |= Button4Mask;
463 else if (!(mask_return & Button5Mask) &&
464 (mouse_mask_state & Button5Mask))
466 mouse_mask_state &= ~Button5Mask;
469 else if ((mask_return & Button5Mask) &&
470 !(mouse_mask_state & Button5Mask))
472 mouse_mask_state |= Button5Mask;
478 fprintf (stderr, "Button %d %s\n",
479 button_number, (is_down) ? "Pressed" : "Released");
481 snprintf (event_detail, 22, "%d%c", button_number,
482 (is_down) ? 'p' : 'r');
483 /* TODO: FIXME distinguish between physical and
486 mouse_e.type = (is_down) ?
487 Accessibility_BUTTON_PRESSED_EVENT :
488 Accessibility_BUTTON_RELEASED_EVENT;
489 mouse_e.id = button_number;
490 mouse_e.hw_code = button_number;
491 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
492 mouse_e.timestamp = 0;
493 mouse_e.event_string = "";
494 mouse_e.is_text = FALSE;
496 spi_controller_notify_mouselisteners (controller,
500 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
501 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", x, y);
504 spi_dec_set_unlatch_pending (controller, mask_return);
516 spi_dec_mouse_check (SpiDEController *controller,
517 int *x, int *y, gboolean *moved)
519 int win_x_return,win_y_return;
520 unsigned int mask_return;
521 Window root_return, child_return;
522 Display *display = spi_get_display ();
525 XQueryPointer(display, DefaultRootWindow (display),
526 &root_return, &child_return,
528 &win_x_return, &win_y_return, &mask_return);
530 * Since many clients grab the pointer, and X goes an automatic
531 * pointer grab on mouse-down, we often must detect mouse button events
532 * by polling rather than via a button grab.
533 * The while loop (rather than if) is used since it's possible that
534 * multiple buttons have changed state since we last checked.
536 if (mask_return != mouse_mask_state)
538 while (spi_dec_button_update_and_emit (controller, mask_return));
541 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
543 // TODO: combine these two signals?
544 dbus_uint32_t ix = *x, iy = *y;
545 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "abs", ix, iy);
546 ix -= last_mouse_pos->x;
547 iy -= last_mouse_pos->y;
548 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "rel", ix, iy);
549 last_mouse_pos->x = *x;
550 last_mouse_pos->y = *y;
562 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
565 dbus_uint32_t d1, d2;
568 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
569 prev_mask, current_mask);
572 /* set bits for the virtual modifiers like NUMLOCK */
573 if (prev_mask & _numlock_physical_mask)
574 prev_mask |= SPI_KEYMASK_NUMLOCK;
575 if (current_mask & _numlock_physical_mask)
576 current_mask |= SPI_KEYMASK_NUMLOCK;
578 d1 = prev_mask & key_modifier_mask;
579 d2 = current_mask & key_modifier_mask;
580 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "modifiers", d1, d2);
584 spi_dec_poll_mouse_moved (gpointer data)
586 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
591 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
593 if ((mask_return & key_modifier_mask) !=
594 (mouse_mask_state & key_modifier_mask))
596 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
597 mouse_mask_state = mask_return;
604 spi_dec_poll_mouse_idle (gpointer data)
606 if (! spi_dec_poll_mouse_moved (data))
610 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
616 spi_dec_poll_mouse_moving (gpointer data)
618 if (spi_dec_poll_mouse_moved (data))
622 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
627 #ifdef WE_NEED_UGRAB_MOUSE
629 spi_dec_ungrab_mouse (gpointer data)
631 Display *display = spi_get_display ();
634 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
635 XDefaultRootWindow (spi_get_display ()));
642 spi_dec_init_mouse_listener (SpiDEController *dec)
645 Display *display = spi_get_display ();
647 g_timeout_add (100, spi_dec_poll_mouse_idle, dec);
652 if (XGrabButton (display, AnyButton, AnyModifier,
653 gdk_x11_get_default_root_xwindow (),
654 True, ButtonPressMask | ButtonReleaseMask,
655 GrabModeSync, GrabModeAsync, None, None) != Success) {
657 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
661 XSync (display, False);
663 fprintf (stderr, "mouse buttons grabbed\n");
670 * Eventually we can use this to make the marshalling of mask types
671 * more sane, but for now we just use this to detect
672 * the use of 'virtual' masks such as numlock and convert them to
673 * system-specific mask values (i.e. ModMask).
676 static Accessibility_ControllerEventMask
677 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
679 Accessibility_ControllerEventMask tmp_mask;
680 gboolean has_numlock;
682 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
686 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
687 tmp_mask |= _numlock_physical_mask;
693 static DEControllerKeyListener *
694 spi_dec_key_listener_new (const char *bus_name,
697 const Accessibility_ControllerEventMask mask,
698 const dbus_uint32_t types,
699 const Accessibility_EventListenerMode *mode)
701 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
702 key_listener->listener.bus_name = g_strdup(bus_name);
703 key_listener->listener.path = g_strdup(path);
704 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
705 key_listener->keys = keys;
706 key_listener->mask = spi_dec_translate_mask (mask);
707 key_listener->listener.types = types;
710 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
711 memcpy(key_listener->mode, mode, sizeof(*mode));
714 key_listener->mode = NULL;
717 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
718 (unsigned int) key_listener->mask,
719 (int) (mode ? mode->global : 0),
720 (void *) key_listener->keys,
721 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
727 static DEControllerListener *
728 spi_dec_listener_new (const char *bus_name,
732 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
733 listener->bus_name = g_strdup(bus_name);
734 listener->path = g_strdup(path);
735 listener->type = SPI_DEVICE_TYPE_MOUSE;
736 listener->types = types;
740 static DEControllerListener *
741 spi_listener_clone (DEControllerListener *listener)
743 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
744 clone->bus_name = g_strdup (listener->bus_name);
745 clone->path = g_strdup (listener->path);
746 clone->type = listener->type;
747 clone->types = listener->types;
751 static GSList *keylist_clone (GSList *s)
756 for (l = s; l; l = g_slist_next(l))
758 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
761 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
762 kd->keycode = kds->keycode;
763 kd->keysym = kds->keysym;
764 kd->keystring = g_strdup(kds->keystring);
765 d = g_slist_append(d, kd);
771 static DEControllerKeyListener *
772 spi_key_listener_clone (DEControllerKeyListener *key_listener)
774 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
775 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
776 clone->listener.path = g_strdup (key_listener->listener.path);
777 clone->listener.type = SPI_DEVICE_TYPE_KBD;
778 clone->keys = keylist_clone (key_listener->keys);
779 clone->mask = key_listener->mask;
780 clone->listener.types = key_listener->listener.types;
781 if (key_listener->mode)
783 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
784 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
791 static void keylist_free(GSList *keys)
795 for (l = keys; l; l = g_slist_next(l))
797 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
798 g_free(kd->keystring);
805 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
807 keylist_free(key_listener->keys);
808 if (key_listener->mode) g_free(key_listener->mode);
809 g_free (key_listener);
813 spi_key_listener_clone_free (DEControllerKeyListener *clone)
815 spi_key_listener_data_free (clone);
819 spi_listener_clone_free (DEControllerListener *clone)
821 g_free (clone->path);
822 g_free (clone->bus_name);
827 spi_dec_listener_free (DEControllerListener *listener)
829 g_free (listener->bus_name);
830 g_free (listener->path);
831 if (listener->type == SPI_DEVICE_TYPE_KBD)
832 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
836 _register_keygrab (SpiDEController *controller,
837 DEControllerGrabMask *grab_mask)
841 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
842 spi_grab_mask_compare_values);
845 DEControllerGrabMask *cur_mask = l->data;
847 cur_mask->ref_count++;
848 if (cur_mask->pending_remove)
850 cur_mask->pending_remove = FALSE;
855 controller->keygrabs_list =
856 g_list_prepend (controller->keygrabs_list,
857 spi_grab_mask_clone (grab_mask));
862 _deregister_keygrab (SpiDEController *controller,
863 DEControllerGrabMask *grab_mask)
867 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
868 spi_grab_mask_compare_values);
872 DEControllerGrabMask *cur_mask = l->data;
874 cur_mask->ref_count--;
875 if (cur_mask->ref_count <= 0)
877 cur_mask->pending_remove = TRUE;
883 handle_keygrab (SpiDEController *controller,
884 DEControllerKeyListener *key_listener,
885 void (*process_cb) (SpiDEController *controller,
886 DEControllerGrabMask *grab_mask))
888 DEControllerGrabMask grab_mask = { 0 };
890 grab_mask.mod_mask = key_listener->mask;
891 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
893 grab_mask.key_val = AnyKey;
895 fprintf (stderr, "AnyKey grab!");
897 process_cb (controller, &grab_mask);
903 for (l = key_listener->keys; l; l = g_slist_next(l))
905 Accessibility_KeyDefinition *keydef = l->data;
906 long int key_val = keydef->keysym;
907 /* X Grabs require keycodes, not keysyms */
908 if (keydef->keystring && keydef->keystring[0])
910 key_val = XStringToKeysym(keydef->keystring);
914 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
918 key_val = keydef->keycode;
920 grab_mask.key_val = key_val;
921 process_cb (controller, &grab_mask);
927 spi_controller_register_global_keygrabs (SpiDEController *controller,
928 DEControllerKeyListener *key_listener)
930 handle_keygrab (controller, key_listener, _register_keygrab);
931 if (controller->xevie_display == NULL)
932 return spi_controller_update_key_grabs (controller, NULL);
938 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
939 DEControllerKeyListener *key_listener)
941 handle_keygrab (controller, key_listener, _deregister_keygrab);
942 if (controller->xevie_display == NULL)
943 spi_controller_update_key_grabs (controller, NULL);
947 spi_controller_register_device_listener (SpiDEController *controller,
948 DEControllerListener *listener)
950 DEControllerKeyListener *key_listener;
952 switch (listener->type) {
953 case SPI_DEVICE_TYPE_KBD:
954 key_listener = (DEControllerKeyListener *) listener;
956 controller->key_listeners = g_list_prepend (controller->key_listeners,
958 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
959 if (key_listener->mode->global)
961 return spi_controller_register_global_keygrabs (controller, key_listener);
966 case SPI_DEVICE_TYPE_MOUSE:
967 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
968 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
977 Accessibility_DeviceEventListener_notifyEvent(SpiDEController *controller,
978 SpiRegistry *registry,
979 DEControllerListener *listener,
980 const Accessibility_DeviceEvent *key_event)
982 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
984 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
987 dbus_bool_t consumed = FALSE;
989 dbus_error_init(&error);
990 if (spi_dbus_marshal_deviceEvent(message, key_event))
992 // TODO: Evaluate performance: perhaps rework this whole architecture
993 // to avoid blocking calls
994 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
998 dbus_error_init(&error);
999 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1000 dbus_message_unref(reply);
1003 dbus_message_unref(message);
1008 spi_controller_notify_mouselisteners (SpiDEController *controller,
1009 const Accessibility_DeviceEvent *event)
1012 GSList *notify = NULL, *l2;
1013 GList **listeners = &controller->mouse_listeners;
1014 gboolean is_consumed;
1015 #ifdef SPI_KEYEVENT_DEBUG
1016 gboolean found = FALSE;
1023 for (l = *listeners; l; l = l->next)
1025 DEControllerListener *listener = l->data;
1027 if (spi_eventtype_seq_contains_event (listener->types, event))
1029 /* we clone (don't dup) the listener, to avoid refcount inc. */
1030 notify = g_slist_prepend (notify,
1031 spi_listener_clone (listener));
1032 #ifdef SPI_KEYEVENT_DEBUG
1038 #ifdef SPI_KEYEVENT_DEBUG
1041 g_print ("no match for event\n");
1045 is_consumed = FALSE;
1046 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1048 DEControllerListener *listener = l2->data;
1050 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, listener, event);
1052 spi_listener_clone_free ((DEControllerListener *) l2->data);
1055 for (; l2; l2 = l2->next)
1057 DEControllerListener *listener = l2->data;
1058 spi_listener_clone_free (listener);
1059 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1062 g_slist_free (notify);
1065 if (is_consumed) g_message ("consumed\n");
1071 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1074 Accessibility_DeviceEvent mouse_e;
1075 gchar event_detail[24];
1076 gboolean is_consumed = FALSE;
1077 gboolean xkb_mod_unlatch_occurred;
1078 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1079 dbus_uint32_t ix, iy;
1081 int button = xbutton_event->button;
1083 unsigned int mouse_button_state = xbutton_event->state;
1088 mouse_button_state |= Button1Mask;
1091 mouse_button_state |= Button2Mask;
1094 mouse_button_state |= Button3Mask;
1097 mouse_button_state |= Button4Mask;
1100 mouse_button_state |= Button5Mask;
1104 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1105 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1108 fprintf (stderr, "mouse button %d %s (%x)\n",
1109 xbutton_event->button,
1110 (xevent->type == ButtonPress) ? "Press" : "Release",
1111 mouse_button_state);
1113 snprintf (event_detail, 22, "%d%c", button,
1114 (xevent->type == ButtonPress) ? 'p' : 'r');
1116 /* TODO: FIXME distinguish between physical and logical buttons */
1117 mouse_e.type = (xevent->type == ButtonPress) ?
1118 Accessibility_BUTTON_PRESSED_EVENT :
1119 Accessibility_BUTTON_RELEASED_EVENT;
1120 mouse_e.id = button;
1121 mouse_e.hw_code = button;
1122 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1123 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1124 mouse_e.event_string = "";
1125 mouse_e.is_text = FALSE;
1126 if ((mouse_button_state & mouse_button_mask) !=
1127 (mouse_mask_state & mouse_button_mask))
1129 if ((mouse_mask_state & key_modifier_mask) !=
1130 (mouse_button_state & key_modifier_mask))
1131 spi_dec_emit_modifier_event (controller,
1132 mouse_mask_state, mouse_button_state);
1133 mouse_mask_state = mouse_button_state;
1135 spi_controller_notify_mouselisteners (controller, &mouse_e);
1136 ix = last_mouse_pos->x;
1137 iy = last_mouse_pos->y;
1138 /* TODO - Work out which part of the spec this emit is fulfilling */
1139 //emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, ix, iy);
1142 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1143 xevent->type == ButtonRelease);
1145 /* if client wants to consume this event, and XKB latch state was
1146 * unset by this button event, we reset it
1148 if (is_consumed && xkb_mod_unlatch_occurred)
1149 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1151 XAllowEvents (spi_get_display (),
1152 (is_consumed) ? SyncPointer : ReplayPointer,
1156 static GdkFilterReturn
1157 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1159 XEvent *xevent = gdk_xevent;
1160 SpiDEController *controller;
1161 DEControllerPrivateData *priv;
1162 Display *display = spi_get_display ();
1163 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1164 priv = (DEControllerPrivateData *)
1165 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1167 if (xevent->type == MappingNotify)
1170 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1172 if (controller->xevie_display == NULL)
1174 gboolean is_consumed;
1177 spi_device_event_controller_forward_key_event (controller, xevent);
1184 n_events = XPending (display);
1186 #ifdef SPI_KEYEVENT_DEBUG
1187 g_print ("Number of events pending: %d\n", n_events);
1189 for (i = 0; i < n_events; i++)
1191 XNextEvent (display, &next_event);
1192 if (next_event.type != KeyPress &&
1193 next_event.type != KeyRelease)
1194 g_warning ("Unexpected event type %d in queue", next_event.type);
1197 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1199 XUngrabKeyboard (display, CurrentTime);
1203 if (xevent->type == KeyPress)
1204 wait_for_release_event (xevent, controller);
1205 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1209 return GDK_FILTER_CONTINUE;
1211 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1213 spi_device_event_controller_forward_mouse_event (controller, xevent);
1215 if (xevent->type == priv->xkb_base_event_code)
1217 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1218 /* ugly but probably necessary...*/
1219 XSynchronize (display, TRUE);
1221 if (xkb_ev->xkb_type == XkbStateNotify)
1223 XkbStateNotifyEvent *xkb_snev =
1224 (XkbStateNotifyEvent *) xkb_ev;
1225 /* check the mouse, to catch mouse events grabbed by
1226 * another client; in case we should revert this XKB delatch
1228 if (!priv->pending_xkb_mod_relatch_mask)
1232 spi_dec_mouse_check (controller, &x, &y, &moved);
1234 /* we check again, since the previous call may have
1235 changed this flag */
1236 if (priv->pending_xkb_mod_relatch_mask)
1238 unsigned int feedback_mask;
1239 #ifdef SPI_XKB_DEBUG
1240 fprintf (stderr, "relatching %x\n",
1241 priv->pending_xkb_mod_relatch_mask);
1243 /* temporarily turn off the latch bell, if it's on */
1244 XkbGetControls (display,
1245 XkbAccessXFeedbackMask,
1247 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1248 if (feedback_mask & XkbAX_StickyKeysFBMask)
1250 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1252 priv->xkb_desc->ctrls->ax_options
1253 &= ~(XkbAX_StickyKeysFBMask);
1254 XkbChangeControls (display, priv->xkb_desc, &changes);
1256 /* TODO: account for lock as well as latch */
1257 XkbLatchModifiers (display,
1259 priv->pending_xkb_mod_relatch_mask,
1260 priv->pending_xkb_mod_relatch_mask);
1261 if (feedback_mask & XkbAX_StickyKeysFBMask)
1263 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1265 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1266 XkbChangeControls (display, priv->xkb_desc, &changes);
1268 #ifdef SPI_XKB_DEBUG
1269 fprintf (stderr, "relatched %x\n",
1270 priv->pending_xkb_mod_relatch_mask);
1272 priv->pending_xkb_mod_relatch_mask = 0;
1276 priv->xkb_latch_mask = xkb_snev->latched_mods;
1279 XSynchronize (display, FALSE);
1282 return GDK_FILTER_CONTINUE;
1286 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1288 if (error->error_code == BadAccess)
1290 g_message ("Could not complete key grab: grab already in use.\n");
1291 spi_error_code = BadAccess;
1296 return (*x_default_error_handler) (display, error);
1301 spi_controller_register_with_devices (SpiDEController *controller)
1303 DEControllerPrivateData *priv;
1304 int event_base, error_base, major_version, minor_version;
1306 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1307 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1309 XTestGrabControl (spi_get_display (), True);
1312 /* calls to device-specific implementations and routines go here */
1313 /* register with: keyboard hardware code handler */
1314 /* register with: (translated) keystroke handler */
1316 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1317 &priv->xkb_major_extension_opcode,
1318 &priv->xkb_base_event_code,
1319 &priv->xkb_base_error_code, NULL, NULL);
1323 guint64 reserved = 0;
1324 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1325 XkbSelectEvents (spi_get_display (),
1327 XkbStateNotifyMask, XkbStateNotifyMask);
1328 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1330 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1332 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1334 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1336 /* don't use this one if there's a grab client! */
1337 gdk_error_trap_push ();
1338 XGrabKey (spi_get_display (), i, 0,
1339 gdk_x11_get_default_root_xwindow (),
1341 GrabModeSync, GrabModeSync);
1342 XSync (spi_get_display (), TRUE);
1343 XUngrabKey (spi_get_display (), i, 0,
1344 gdk_x11_get_default_root_xwindow ());
1345 if (!gdk_error_trap_pop ())
1355 priv->reserved_keycode = reserved;
1356 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1360 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1361 priv->reserved_keysym = XK_numbersign;
1363 #ifdef SPI_RESERVED_DEBUG
1365 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1366 fprintf (stderr, "%x\n", sym);
1367 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1369 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1374 gdk_window_add_filter (NULL, global_filter_fn, controller);
1376 gdk_window_set_events (gdk_get_default_root_window (),
1377 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1379 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1383 spi_key_set_contains_key (GSList *key_set,
1384 const Accessibility_DeviceEvent *key_event)
1392 g_print ("null key set!\n");
1396 len = g_slist_length (key_set);
1398 if (len == 0) /* special case, means "all keys/any key" */
1401 g_print ("anykey\n");
1406 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1408 Accessibility_KeyDefinition *kd = l->data;
1409 #ifdef SPI_KEYEVENT_DEBUG
1410 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1414 (int) key_event->id,
1415 (int) key_event->hw_code,
1416 key_event->event_string);
1418 if (kd->keysym == (dbus_uint32_t) key_event->id)
1422 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1426 if (key_event->event_string && key_event->event_string[0] &&
1427 !strcmp (kd->keystring, key_event->event_string))
1437 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1438 const Accessibility_DeviceEvent *event)
1440 if (types == 0) /* special case, means "all events/any event" */
1445 return (types & (1 << event->type));
1449 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1450 DEControllerKeyListener *listener,
1451 dbus_bool_t is_system_global)
1453 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1454 spi_key_set_contains_key (listener->keys, key_event) &&
1455 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1456 (is_system_global == listener->mode->global))
1467 spi_controller_notify_keylisteners (SpiDEController *controller,
1468 Accessibility_DeviceEvent *key_event,
1469 dbus_bool_t is_system_global)
1472 GSList *notify = NULL, *l2;
1473 GList **key_listeners = &controller->key_listeners;
1474 gboolean is_consumed;
1481 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1482 if (key_event->modifiers & _numlock_physical_mask)
1483 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1485 for (l = *key_listeners; l; l = l->next)
1487 DEControllerKeyListener *key_listener = l->data;
1489 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1491 /* we clone (don't dup) the listener, to avoid refcount inc. */
1492 notify = g_slist_prepend (notify,
1493 spi_key_listener_clone (key_listener));
1497 #ifdef SPI_KEYEVENT_DEBUG
1500 g_print ("no match for event\n");
1504 is_consumed = FALSE;
1505 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1507 DEControllerKeyListener *key_listener = l2->data;
1509 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1510 key_listener->mode->preemptive;
1512 spi_key_listener_clone_free (key_listener);
1515 for (; l2; l2 = l2->next)
1517 DEControllerKeyListener *key_listener = l2->data;
1518 spi_key_listener_clone_free (key_listener);
1519 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1522 g_slist_free (notify);
1525 if (is_consumed) g_message ("consumed\n");
1531 spi_clear_error_state (void)
1533 gboolean retval = spi_error_code != 0;
1538 static Accessibility_DeviceEvent
1539 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1541 Accessibility_DeviceEvent key_event;
1543 const int cbuf_bytes = 20;
1547 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1548 key_event.id = (dbus_int32_t)(keysym);
1549 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1550 if (((XEvent *) x_key_event)->type == KeyPress)
1552 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1556 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1558 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1559 key_event.is_text = FALSE;
1563 key_event.event_string = g_strdup ("space");
1566 key_event.event_string = g_strdup ("Tab");
1569 key_event.event_string = g_strdup ("Backspace");
1572 key_event.event_string = g_strdup ("Return");
1575 key_event.event_string = g_strdup ("Home");
1578 key_event.event_string = g_strdup ("Page_Down");
1581 key_event.event_string = g_strdup ("Page_Up");
1584 key_event.event_string = g_strdup ("F1");
1587 key_event.event_string = g_strdup ("F2");
1590 key_event.event_string = g_strdup ("F3");
1593 key_event.event_string = g_strdup ("F4");
1596 key_event.event_string = g_strdup ("F5");
1599 key_event.event_string = g_strdup ("F6");
1602 key_event.event_string = g_strdup ("F7");
1605 key_event.event_string = g_strdup ("F8");
1608 key_event.event_string = g_strdup ("F9");
1611 key_event.event_string = g_strdup ("F10");
1614 key_event.event_string = g_strdup ("F11");
1617 key_event.event_string = g_strdup ("F12");
1620 key_event.event_string = g_strdup ("End");
1623 key_event.event_string = g_strdup ("Escape");
1626 key_event.event_string = g_strdup ("Up");
1629 key_event.event_string = g_strdup ("Down");
1632 key_event.event_string = g_strdup ("Left");
1635 key_event.event_string = g_strdup ("Right");
1641 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1642 key_event.event_string = g_strdup (cbuf);
1643 c = keysym2ucs (keysym);
1644 if (c > 0 && !g_unichar_iscntrl (c))
1646 key_event.is_text = TRUE;
1647 /* incorrect for some composed chars? */
1652 key_event.event_string = g_strdup ("");
1656 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1657 #ifdef SPI_KEYEVENT_DEBUG
1659 char *pressed_str = "pressed";
1660 char *released_str = "released";
1663 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1664 state_ptr = pressed_str;
1666 state_ptr = released_str;
1669 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1670 (unsigned long) keysym,
1672 keysym ? (int) keysym : '*',
1673 (int) x_key_event->state,
1674 key_event.event_string,
1675 key_event.event_string[0],
1676 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1680 fprintf (stderr, "%s%c\n",
1681 (x_key_event->state & Mod1Mask)?"Alt-":"",
1682 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1683 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1684 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1685 #endif /* SPI_DEBUG */
1690 spi_controller_update_key_grabs (SpiDEController *controller,
1691 Accessibility_DeviceEvent *recv)
1694 gboolean update_failed = FALSE;
1695 KeyCode keycode = 0;
1697 g_return_val_if_fail (controller != NULL, FALSE);
1700 * masks known to work with default RH 7.1+:
1701 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1702 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1703 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1704 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1706 * ControlMask grabs are broken, must be in use already
1709 keycode = keycode_for_keysym (controller, recv->id, NULL);
1710 for (l = controller->keygrabs_list; l; l = next)
1713 gboolean re_issue_grab;
1714 DEControllerGrabMask *grab_mask = l->data;
1718 re_issue_grab = recv &&
1719 (recv->modifiers & grab_mask->mod_mask) &&
1720 (grab_mask->key_val == keycode);
1723 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1724 (long int) grab_mask->key_val,
1725 (long int) grab_mask->mod_mask,
1726 grab_mask->pending_add ? '+' : '.',
1727 grab_mask->pending_remove ? '-' : '.',
1728 re_issue_grab ? "re-issue": "");
1733 if (grab_mask->pending_add && grab_mask->pending_remove)
1737 else if (grab_mask->pending_remove)
1740 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1742 XUngrabKey (spi_get_display (),
1744 grab_mask->mod_mask,
1745 gdk_x11_get_default_root_xwindow ());
1749 else if (grab_mask->pending_add || re_issue_grab)
1753 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1755 XGrabKey (spi_get_display (),
1757 grab_mask->mod_mask,
1758 gdk_x11_get_default_root_xwindow (),
1762 XSync (spi_get_display (), False);
1763 update_failed = spi_clear_error_state ();
1764 if (update_failed) {
1765 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1770 grab_mask->pending_add = FALSE;
1771 grab_mask->pending_remove = FALSE;
1775 g_assert (grab_mask->ref_count <= 0);
1777 controller->keygrabs_list = g_list_delete_link (
1778 controller->keygrabs_list, l);
1780 spi_grab_mask_free (grab_mask);
1785 return ! update_failed;
1789 * Implemented GObject::finalize
1792 spi_device_event_controller_object_finalize (GObject *object)
1794 SpiDEController *controller;
1795 DEControllerPrivateData *private;
1796 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1797 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1799 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1801 /* disconnect any special listeners, get rid of outstanding keygrabs */
1802 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1805 if (controller->xevie_display != NULL)
1807 XevieEnd(controller->xevie_display);
1808 #ifdef SPI_KEYEVENT_DEBUG
1809 printf("XevieEnd(dpy) finished \n");
1814 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1815 if (private->xkb_desc)
1816 XkbFreeKeyboard (private->xkb_desc, 0, True);
1818 parent_class->finalize (object);
1822 * DBus Accessibility::DEController::registerKeystrokeListener
1823 * method implementation
1825 static DBusMessage *
1826 impl_register_keystroke_listener (DBusConnection *bus,
1827 DBusMessage *message,
1830 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1831 DEControllerKeyListener *dec_listener;
1832 DBusMessageIter iter, iter_array;
1834 GSList *keys = NULL;
1835 dbus_int32_t mask, type;
1836 Accessibility_EventListenerMode *mode;
1838 DBusMessage *reply = NULL;
1841 dbus_message_iter_init(message, &iter);
1842 // TODO: verify type signature
1843 dbus_message_iter_get_basic(&iter, &path);
1844 dbus_message_iter_next(&iter);
1845 dbus_message_iter_recurse(&iter, &iter_array);
1846 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1848 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1849 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))
1853 kd->keystring = g_strdup (keystring);
1854 keys = g_slist_append(keys, kd);
1856 dbus_message_iter_next(&iter);
1857 dbus_message_iter_get_basic(&iter, &mask);
1858 dbus_message_iter_next(&iter);
1859 if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
1860 dbus_message_iter_get_basic(&iter, &type);
1863 dbus_message_iter_recurse(&iter, &iter_array);
1864 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1867 dbus_message_iter_get_basic (&iter_array, &t);
1869 dbus_message_iter_next (&iter_array);
1871 dbus_message_iter_next (&iter_array);
1873 dbus_message_iter_next(&iter);
1874 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1877 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);
1880 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1881 dbus_message_get_sender(message), path, (unsigned long) mask);
1883 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1884 ret = spi_controller_register_device_listener (
1885 controller, (DEControllerListener *) dec_listener);
1886 reply = dbus_message_new_method_return (message);
1889 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1895 * DBus Accessibility::DEController::registerDeviceEventListener
1896 * method implementation
1898 static DBusMessage *
1899 impl_register_device_event_listener (DBusConnection *bus,
1900 DBusMessage *message,
1903 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1904 DEControllerListener *dec_listener;
1907 dbus_int32_t event_types;
1909 DBusMessage *reply = NULL;
1911 dbus_error_init(&error);
1912 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1914 return droute_invalid_arguments_error (message);
1916 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1917 ret = spi_controller_register_device_listener (
1918 controller, (DEControllerListener *) dec_listener);
1919 reply = dbus_message_new_method_return (message);
1922 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1928 DBusConnection *bus;
1929 DEControllerListener *listener;
1930 } RemoveListenerClosure;
1932 static SpiReEntrantContinue
1933 remove_listener_cb (GList * const *list,
1936 DEControllerListener *listener = (*list)->data;
1937 RemoveListenerClosure *ctx = user_data;
1939 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1940 !strcmp(ctx->listener->path, listener->path))
1942 spi_re_entrant_list_delete_link (list);
1943 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1944 spi_dec_listener_free (listener);
1947 return SPI_RE_ENTRANT_CONTINUE;
1950 static SpiReEntrantContinue
1951 copy_key_listener_cb (GList * const *list,
1954 DEControllerKeyListener *key_listener = (*list)->data;
1955 RemoveListenerClosure *ctx = user_data;
1957 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1958 !strcmp(ctx->listener->path, key_listener->listener.path))
1960 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1961 DEControllerKeyListener *ctx_key_listener =
1962 (DEControllerKeyListener *) ctx->listener;
1963 keylist_free (ctx_key_listener->keys);
1964 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1967 return SPI_RE_ENTRANT_CONTINUE;
1971 spi_controller_deregister_device_listener (SpiDEController *controller,
1972 DEControllerListener *listener)
1974 RemoveListenerClosure ctx;
1976 ctx.bus = controller->bus;
1977 ctx.listener = listener;
1979 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1980 remove_listener_cb, &ctx);
1984 spi_deregister_controller_key_listener (SpiDEController *controller,
1985 DEControllerKeyListener *key_listener)
1987 RemoveListenerClosure ctx;
1989 ctx.bus = controller->bus;
1990 ctx.listener = (DEControllerListener *) key_listener;
1992 /* special case, copy keyset from existing controller list entry */
1993 if (g_slist_length(key_listener->keys) == 0)
1995 spi_re_entrant_list_foreach (&controller->key_listeners,
1996 copy_key_listener_cb, &ctx);
1999 spi_controller_deregister_global_keygrabs (controller, key_listener);
2001 spi_re_entrant_list_foreach (&controller->key_listeners,
2002 remove_listener_cb, &ctx);
2007 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
2011 for (l = controller->mouse_listeners; l; l = tmp)
2013 DEControllerListener *listener = l->data;
2015 if (!strcmp (listener->bus_name, bus_name))
2017 spi_controller_deregister_device_listener (controller, listener);
2020 for (l = controller->key_listeners; l; l = tmp)
2022 DEControllerKeyListener *key_listener = l->data;
2024 if (!strcmp (key_listener->listener.bus_name, bus_name))
2026 spi_deregister_controller_key_listener (controller, key_listener);
2032 * DBus Accessibility::DEController::deregisterKeystrokeListener
2033 * method implementation
2035 static DBusMessage *
2036 impl_deregister_keystroke_listener (DBusConnection *bus,
2037 DBusMessage *message,
2040 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2041 DEControllerKeyListener *key_listener;
2042 DBusMessageIter iter, iter_array;
2044 GSList *keys = NULL;
2045 dbus_int32_t mask, type;
2046 DBusMessage *reply = NULL;
2048 dbus_message_iter_init(message, &iter);
2049 // TODO: verify type signature
2050 dbus_message_iter_get_basic(&iter, &path);
2051 dbus_message_iter_next(&iter);
2052 dbus_message_iter_recurse(&iter, &iter_array);
2053 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2055 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2058 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))
2062 kd->keystring = g_strdup (keystring);
2063 keys = g_slist_append(keys, kd);
2065 dbus_message_iter_next(&iter);
2066 dbus_message_iter_get_basic(&iter, &mask);
2067 dbus_message_iter_next(&iter);
2068 dbus_message_iter_get_basic(&iter, &type);
2069 dbus_message_iter_next(&iter);
2070 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2071 #ifdef SPI_DEREGISTER_DEBUG
2072 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2073 (void *) l, (unsigned long) mask->value);
2076 spi_deregister_controller_key_listener (controller, key_listener);
2078 spi_dec_listener_free ((DEControllerListener *) key_listener);
2079 reply = dbus_message_new_method_return (message);
2084 * DBus Accessibility::DEController::deregisterDeviceEventListener
2085 * method implementation
2087 static DBusMessage *
2088 impl_deregister_device_event_listener (DBusConnection *bus,
2089 DBusMessage *message,
2092 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2093 DEControllerListener *listener;
2096 dbus_int32_t event_types;
2097 DBusMessage *reply = NULL;
2099 dbus_error_init(&error);
2100 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2102 return droute_invalid_arguments_error (message);
2104 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2105 spi_controller_deregister_device_listener (
2106 controller, listener);
2107 reply = dbus_message_new_method_return (message);
2111 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2113 unsigned int retval = 0;
2114 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2115 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2117 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2118 retval = XkbGetSlowKeysDelay (spi_get_display (),
2119 XkbUseCoreKbd, &bounce_delay);
2121 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2123 Status s = XkbGetControls (spi_get_display (),
2124 XkbAllControlsMask, priv->xkb_desc);
2127 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2128 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2133 #ifdef SPI_XKB_DEBUG
2134 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2139 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2141 unsigned int retval = 0;
2142 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2143 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2145 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2146 retval = XkbGetBounceKeysDelay (spi_get_display (),
2147 XkbUseCoreKbd, &bounce_delay);
2149 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2151 Status s = XkbGetControls (spi_get_display (),
2152 XkbAllControlsMask, priv->xkb_desc);
2155 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2156 retval = priv->xkb_desc->ctrls->debounce_delay;
2161 #ifdef SPI_XKB_DEBUG
2162 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2168 dec_synth_keycode_press (SpiDEController *controller,
2169 unsigned int keycode)
2171 unsigned int time = CurrentTime;
2172 unsigned int bounce_delay;
2173 unsigned int elapsed_msec;
2175 DEControllerPrivateData *priv =
2176 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2177 spi_dec_private_quark);
2178 if (keycode == priv->last_release_keycode)
2180 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2183 gettimeofday (&tv, NULL);
2185 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2186 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2187 #ifdef SPI_XKB_DEBUG
2188 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2189 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2191 #ifdef THIS_IS_BROKEN
2192 if (elapsed_msec < bounce_delay)
2193 time = bounce_delay - elapsed_msec + 1;
2195 time = bounce_delay + 10;
2196 /* fudge for broken XTest */
2198 #ifdef SPI_XKB_DEBUG
2199 fprintf (stderr, "waiting %d ms\n", time);
2203 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2204 priv->last_press_keycode = keycode;
2205 XFlush (spi_get_display ());
2206 XSync (spi_get_display (), False);
2207 gettimeofday (&priv->last_press_time, NULL);
2212 dec_synth_keycode_release (SpiDEController *controller,
2213 unsigned int keycode)
2215 unsigned int time = CurrentTime;
2216 unsigned int slow_delay;
2217 unsigned int elapsed_msec;
2219 DEControllerPrivateData *priv =
2220 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2221 spi_dec_private_quark);
2222 if (keycode == priv->last_press_keycode)
2224 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2227 gettimeofday (&tv, NULL);
2229 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2230 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2231 #ifdef SPI_XKB_DEBUG
2232 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2233 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2235 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2236 if (elapsed_msec < slow_delay)
2237 time = slow_delay - elapsed_msec + 1;
2239 time = slow_delay + 10;
2240 /* our XTest seems broken, we have to add slop as above */
2242 #ifdef SPI_XKB_DEBUG
2243 fprintf (stderr, "waiting %d ms\n", time);
2247 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2248 priv->last_release_keycode = keycode;
2249 XSync (spi_get_display (), False);
2250 gettimeofday (&priv->last_release_time, NULL);
2255 dec_get_modifier_state (SpiDEController *controller)
2257 return mouse_mask_state;
2261 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2263 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2264 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2266 if (priv->have_xkb) {
2267 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2268 modifiers, modifiers);
2271 for (mod_index=0;mod_index<8;mod_index++)
2272 if (modifiers & (1<<mod_index))
2273 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2279 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2281 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2282 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2284 if (priv->have_xkb) {
2285 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2289 for (mod_index=0;mod_index<8;mod_index++)
2290 if (modifiers & (1<<mod_index))
2291 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2297 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2299 return ucs2keysym ((long) unichar);
2303 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2305 KeyCode key_synth_code;
2306 unsigned int modifiers, synth_mods, lock_mods;
2308 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2310 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2312 /* TODO: set the modifiers accordingly! */
2313 modifiers = dec_get_modifier_state (controller);
2314 /* side-effect; we may unset mousebutton modifiers here! */
2317 if (synth_mods != modifiers) {
2318 lock_mods = synth_mods & ~modifiers;
2319 dec_lock_modifiers (controller, lock_mods);
2321 dec_synth_keycode_press (controller, key_synth_code);
2322 dec_synth_keycode_release (controller, key_synth_code);
2324 if (synth_mods != modifiers)
2325 dec_unlock_modifiers (controller, lock_mods);
2331 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2333 /* probably we need to create and inject an XIM handler eventually. */
2334 /* for now, try to match the string to existing
2335 * keycode+modifier states.
2339 gunichar unichar = 0;
2341 gboolean retval = TRUE;
2344 maxlen = strlen (keystring) + 1;
2345 keysyms = g_new0 (KeySym, maxlen);
2346 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2351 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2353 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2358 mbytes = g_unichar_to_utf8 (unichar, bytes);
2359 bytes[mbytes] = '\0';
2361 fprintf (stderr, "[unichar %s]", bytes);
2363 keysym = dec_keysym_for_unichar (controller, unichar);
2364 if (keysym == NoSymbol) {
2366 fprintf (stderr, "no keysym for %s", bytes);
2371 keysyms[i++] = keysym;
2372 keystring = g_utf8_next_char (keystring);
2375 XSynchronize (spi_get_display (), TRUE);
2376 for (i = 0; keysyms[i]; ++i) {
2377 if (!dec_synth_keysym (controller, keysyms[i])) {
2379 fprintf (stderr, "could not synthesize %c\n",
2386 XSynchronize (spi_get_display (), FALSE);
2395 * DBus Accessibility::DEController::registerKeystrokeListener
2396 * method implementation
2398 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2400 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2402 dbus_int32_t keycode;
2404 dbus_uint32_t synth_type;
2407 DEControllerPrivateData *priv;
2408 DBusMessage *reply = NULL;
2410 dbus_error_init(&error);
2411 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2413 return droute_invalid_arguments_error (message);
2417 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2418 (long) keycode, (int) synth_type);
2420 /* TODO: hide/wrap/remove X dependency */
2423 * TODO: when initializing, query for XTest extension before using,
2424 * and fall back to XSendEvent() if XTest is not available.
2427 gdk_error_trap_push ();
2429 priv = (DEControllerPrivateData *)
2430 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2432 if (!priv->have_xkb && xmkeymap==NULL) {
2433 xmkeymap = XGetModifierMapping(spi_get_display ());
2438 case Accessibility_KEY_PRESS:
2439 dec_synth_keycode_press (controller, keycode);
2441 case Accessibility_KEY_PRESSRELEASE:
2442 dec_synth_keycode_press (controller, keycode);
2443 case Accessibility_KEY_RELEASE:
2444 dec_synth_keycode_release (controller, keycode);
2446 case Accessibility_KEY_SYM:
2447 #ifdef SPI_XKB_DEBUG
2448 fprintf (stderr, "KeySym synthesis\n");
2451 * note: we are using long for 'keycode'
2452 * in our arg list; it can contain either
2453 * a keycode or a keysym.
2455 dec_synth_keysym (controller, (KeySym) keycode);
2457 case Accessibility_KEY_STRING:
2458 if (!dec_synth_keystring (controller, keystring))
2459 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2463 if (synth_type == Accessibility_KEY_SYM) {
2467 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2469 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2471 spi_dec_clear_unlatch_pending (controller);
2473 reply = dbus_message_new_method_return (message);
2477 /* Accessibility::DEController::generateMouseEvent */
2478 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2484 DBusMessage *reply = NULL;
2486 gboolean err = FALSE;
2487 Display *display = spi_get_display ();
2489 dbus_error_init (&error);
2490 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2492 return droute_invalid_arguments_error (message);
2496 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2497 eventName, (long int) x, (long int) y);
2499 switch (eventName[0])
2502 switch (eventName[1])
2504 /* TODO: check number of buttons before parsing */
2525 if (x != -1 && y != -1)
2527 XTestFakeMotionEvent (display, DefaultScreen (display),
2530 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2531 if (eventName[2] == 'c')
2532 XTestFakeButtonEvent (display, button, FALSE, 1);
2533 else if (eventName[2] == 'd')
2535 XTestFakeButtonEvent (display, button, FALSE, 1);
2536 XTestFakeButtonEvent (display, button, TRUE, 2);
2537 XTestFakeButtonEvent (display, button, FALSE, 3);
2541 case 'r': /* relative motion */
2542 XTestFakeRelativeMotionEvent (display, x, y, 0);
2544 case 'a': /* absolute motion */
2545 XTestFakeMotionEvent (display, DefaultScreen (display),
2549 reply = dbus_message_new_method_return (message);
2553 /* Accessibility::DEController::notifyListenersSync */
2554 static DBusMessage *
2555 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2557 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2558 Accessibility_DeviceEvent event;
2560 DBusMessage *reply = NULL;
2562 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2564 return droute_invalid_arguments_error (message);
2567 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2568 controller, (int) event.id);
2570 ret = spi_controller_notify_keylisteners (controller,
2571 (Accessibility_DeviceEvent *)
2574 reply = dbus_message_new_method_return (message);
2577 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2582 static DBusMessage *
2583 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2585 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2586 Accessibility_DeviceEvent event;
2587 DBusMessage *reply = NULL;
2589 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2591 return droute_invalid_arguments_error (message);
2594 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2595 controller, (int) event.id);
2597 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2599 reply = dbus_message_new_method_return (message);
2604 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2606 GObjectClass * object_class = (GObjectClass *) klass;
2608 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2610 object_class->finalize = spi_device_event_controller_object_finalize;
2612 if (!spi_dec_private_quark)
2613 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2617 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2623 handle_io (GIOChannel *source,
2624 GIOCondition condition,
2627 SpiDEController *controller = (SpiDEController *) data;
2628 gboolean is_consumed = FALSE;
2631 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2633 if (ev.type == KeyPress || ev.type == KeyRelease)
2634 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2637 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2642 #endif /* HAVE_XEVIE */
2645 spi_device_event_controller_init (SpiDEController *device_event_controller)
2650 #endif /* HAVE_XEVIE */
2652 DEControllerPrivateData *private;
2653 device_event_controller->key_listeners = NULL;
2654 device_event_controller->mouse_listeners = NULL;
2655 device_event_controller->keygrabs_list = NULL;
2656 device_event_controller->xevie_display = NULL;
2659 device_event_controller->xevie_display = XOpenDisplay(NULL);
2661 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2663 #ifdef SPI_KEYEVENT_DEBUG
2664 fprintf (stderr, "XevieStart() success \n");
2666 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2668 fd = ConnectionNumber(device_event_controller->xevie_display);
2669 ioc = g_io_channel_unix_new (fd);
2670 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2671 g_io_channel_unref (ioc);
2675 device_event_controller->xevie_display = NULL;
2676 #ifdef SPI_KEYEVENT_DEBUG
2677 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2680 #endif /* HAVE_XEVIE */
2682 private = g_new0 (DEControllerPrivateData, 1);
2683 gettimeofday (&private->last_press_time, NULL);
2684 gettimeofday (&private->last_release_time, NULL);
2685 g_object_set_qdata (G_OBJECT (device_event_controller),
2686 spi_dec_private_quark,
2688 spi_controller_register_with_devices (device_event_controller);
2692 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2693 const XEvent *event)
2695 Accessibility_DeviceEvent key_event;
2698 g_assert (event->type == KeyPress || event->type == KeyRelease);
2700 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2702 if (controller->xevie_display == NULL)
2703 spi_controller_update_key_grabs (controller, &key_event);
2705 /* relay to listeners, and decide whether to consume it or not */
2706 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2707 g_free(key_event.event_string);
2713 is_key_released (KeyCode code)
2718 XQueryKeymap (spi_get_display (), keys);
2719 down = BIT (keys, code);
2724 check_release (gpointer data)
2727 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2728 KeyCode code = event->hw_code;
2730 released = is_key_released (code);
2734 check_release_handler = 0;
2735 event->type = Accessibility_KEY_RELEASED_EVENT;
2736 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2738 return (released == 0);
2741 static void wait_for_release_event (XEvent *event,
2742 SpiDEController *controller)
2744 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2745 saved_controller = controller;
2746 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2749 static DRouteMethod dev_methods[] =
2751 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2752 { impl_register_device_event_listener, "registerDeviceEventListener" },
2753 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2754 { impl_deregister_device_event_listener, "deregisterDeviceEventListener" },
2755 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2756 { impl_generate_mouse_event, "generateMouseEvent" },
2757 { impl_notify_listeners_sync, "notifyListenersSync" },
2758 { impl_notify_listeners_async, "notifyListenersAsync" },
2763 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus, DRouteContext *droute)
2765 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2768 dec->registry = g_object_ref (reg);
2771 path = droute_add_one (droute,
2775 droute_path_add_interface (path,
2776 SPI_DBUS_INTERFACE_DEC,
2780 spi_dec_init_mouse_listener (dec);
2781 /* TODO: kill mouse listener on finalize */