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 KeySym ucs2keysym (long ucs);
64 long keysym2ucs(KeySym keysym);
66 #define CHECK_RELEASE_DELAY 20
67 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
68 static guint check_release_handler = 0;
69 static Accessibility_DeviceEvent pressed_event;
70 static SpiDEController *saved_controller;
71 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
73 /* Our parent Gtk object type */
74 #define PARENT_TYPE G_TYPE_OBJECT
76 /* A pointer to our parent object class */
77 static int spi_error_code = 0;
82 typedef struct _SpiPoint SpiPoint;
83 static SpiPoint last_mouse_pos_static = {0, 0};
84 static SpiPoint *last_mouse_pos = &last_mouse_pos_static;
85 static unsigned int mouse_mask_state = 0;
86 static unsigned int mouse_button_mask =
87 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
88 static unsigned int key_modifier_mask =
89 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
90 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
92 static GQuark spi_dec_private_quark = 0;
93 static XModifierKeymap* xmkeymap = NULL;
95 static gboolean have_mouse_listener = FALSE;
96 static gboolean have_mouse_event_listener = FALSE;
98 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
102 SPI_DEVICE_TYPE_MOUSE,
103 SPI_DEVICE_TYPE_LAST_DEFINED
104 } SpiDeviceTypeCategory;
107 guint ref_count : 30;
108 guint pending_add : 1;
109 guint pending_remove : 1;
111 Accessibility_ControllerEventMask mod_mask;
112 dbus_uint32_t key_val; /* KeyCode */
113 } DEControllerGrabMask;
118 SpiDeviceTypeCategory type;
120 } DEControllerListener;
123 DEControllerListener listener;
126 Accessibility_ControllerEventMask mask;
127 Accessibility_EventListenerMode *mode;
128 } DEControllerKeyListener;
131 unsigned int last_press_keycode;
132 unsigned int last_release_keycode;
133 struct timeval last_press_time;
134 struct timeval last_release_time;
136 int xkb_major_extension_opcode;
137 int xkb_base_event_code;
138 int xkb_base_error_code;
139 unsigned int xkb_latch_mask;
140 unsigned int pending_xkb_mod_relatch_mask;
142 KeyCode reserved_keycode;
143 KeySym reserved_keysym;
144 guint reserved_reset_timeout;
145 } DEControllerPrivateData;
147 static void spi_controller_register_with_devices (SpiDEController *controller);
148 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
149 Accessibility_DeviceEvent *recv);
150 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
151 DEControllerListener *l);
152 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
153 const XEvent *event);
154 static void spi_controller_deregister_device_listener (SpiDEController *controller,
155 DEControllerListener *listener);
156 static void spi_deregister_controller_key_listener (SpiDEController *controller,
157 DEControllerKeyListener *key_listener);
158 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
159 const Accessibility_DeviceEvent *event);
161 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
162 const Accessibility_DeviceEvent *event);
163 static gboolean spi_clear_error_state (void);
164 static gboolean spi_dec_poll_mouse_moved (gpointer data);
165 static gboolean spi_dec_poll_mouse_moving (gpointer data);
166 static gboolean spi_dec_poll_mouse_idle (gpointer data);
168 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
171 invalid_arguments_error (DBusMessage *message)
176 errmsg= g_strdup_printf (
177 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
178 dbus_message_get_member (message),
179 dbus_message_get_signature (message),
180 dbus_message_get_interface (message));
181 reply = dbus_message_new_error (message,
182 DBUS_ERROR_INVALID_ARGS,
188 /* Private methods */
190 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
192 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
196 dbus_error_init (&error);
197 dbus_bus_add_match (bus, match, &error);
199 return !dbus_error_is_set (&error);
205 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
207 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
211 dbus_error_init (&error);
212 dbus_bus_remove_match (bus, match, &error);
214 return !dbus_error_is_set (&error);
220 keysym_mod_mask (KeySym keysym, KeyCode keycode)
222 /* we really should use XKB and look directly at the keymap */
223 /* this is very inelegant */
224 Display *display = spi_get_display ();
225 unsigned int mods_rtn = 0;
226 unsigned int retval = 0;
229 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
230 (sym_rtn == keysym)) {
233 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
234 (sym_rtn == keysym)) {
237 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
238 (sym_rtn == keysym)) {
241 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
242 (sym_rtn == keysym)) {
245 else if (XkbLookupKeySym (display, keycode,
246 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
247 (sym_rtn == keysym)) {
248 retval = (Mod2Mask | ShiftMask);
250 else if (XkbLookupKeySym (display, keycode,
251 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
252 (sym_rtn == keysym)) {
253 retval = (Mod3Mask | ShiftMask);
255 else if (XkbLookupKeySym (display, keycode,
256 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
257 (sym_rtn == keysym)) {
258 retval = (Mod4Mask | ShiftMask);
266 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
269 Display *dpy = spi_get_display ();
271 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
273 fprintf (stderr, "ERROR getting map\n");
277 if (desc && desc->map)
279 gint offset = desc->map->key_sym_map[keycode].offset;
280 desc->map->syms[offset] = keysym;
284 fprintf (stderr, "Error changing key map: empty server structure\n");
286 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
288 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
289 * would be far preferable.
290 * HOWEVER it does not seem to work using XFree 4.3.
292 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
295 XkbFreeKeyboard (desc, 0, TRUE);
304 spi_dec_reset_reserved (gpointer data)
306 DEControllerPrivateData *priv = data;
307 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
308 priv->reserved_reset_timeout = 0;
313 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
316 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
319 DEControllerPrivateData *priv = (DEControllerPrivateData *)
320 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
321 /* if there's no keycode available, fix it */
322 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
324 keycode = priv->reserved_keycode;
326 * queue a timer to restore the old keycode. Ugly, but required
327 * due to races / asynchronous X delivery.
328 * Long-term fix is to extend the X keymap here instead of replace entries.
330 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
336 *modmask = keysym_mod_mask (keysym, keycode);
340 static DEControllerGrabMask *
341 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
343 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
345 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
347 clone->ref_count = 1;
348 clone->pending_add = TRUE;
349 clone->pending_remove = FALSE;
355 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
361 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
363 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
364 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
372 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
377 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
379 DEControllerPrivateData *priv =
380 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
382 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
383 priv->xkb_latch_mask);
385 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
389 spi_dec_clear_unlatch_pending (SpiDEController *controller)
391 DEControllerPrivateData *priv =
392 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
393 priv->xkb_latch_mask = 0;
396 static void emit(SpiDEController *controller, const char *interface, const char *name, int a1, int a2)
398 DBusMessage *signal = NULL;
399 DBusMessageIter iter, iter_variant;
401 const char *minor = "";
402 const char *path = SPI_DBUS_PATH_DESKTOP;
404 signal = dbus_message_new_signal (path, interface, name);
406 dbus_message_iter_init_append (signal, &iter);
408 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
409 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a1);
410 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a2);
411 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
412 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
413 dbus_message_iter_close_container (&iter, &iter_variant);
415 dbus_connection_send (controller->bus, signal, NULL);
419 spi_dec_button_update_and_emit (SpiDEController *controller,
422 Accessibility_DeviceEvent mouse_e;
423 gchar event_detail[24];
424 gboolean is_consumed = FALSE;
426 if ((mask_return & mouse_button_mask) !=
427 (mouse_mask_state & mouse_button_mask))
429 int button_number = 0;
430 gboolean is_down = False;
432 if (!(mask_return & Button1Mask) &&
433 (mouse_mask_state & Button1Mask))
435 mouse_mask_state &= ~Button1Mask;
438 else if ((mask_return & Button1Mask) &&
439 !(mouse_mask_state & Button1Mask))
441 mouse_mask_state |= Button1Mask;
445 else if (!(mask_return & Button2Mask) &&
446 (mouse_mask_state & Button2Mask))
448 mouse_mask_state &= ~Button2Mask;
451 else if ((mask_return & Button2Mask) &&
452 !(mouse_mask_state & Button2Mask))
454 mouse_mask_state |= Button2Mask;
458 else if (!(mask_return & Button3Mask) &&
459 (mouse_mask_state & Button3Mask))
461 mouse_mask_state &= ~Button3Mask;
464 else if ((mask_return & Button3Mask) &&
465 !(mouse_mask_state & Button3Mask))
467 mouse_mask_state |= Button3Mask;
471 else if (!(mask_return & Button4Mask) &&
472 (mouse_mask_state & Button4Mask))
474 mouse_mask_state &= ~Button4Mask;
477 else if ((mask_return & Button4Mask) &&
478 !(mouse_mask_state & Button4Mask))
480 mouse_mask_state |= Button4Mask;
484 else if (!(mask_return & Button5Mask) &&
485 (mouse_mask_state & Button5Mask))
487 mouse_mask_state &= ~Button5Mask;
490 else if ((mask_return & Button5Mask) &&
491 !(mouse_mask_state & Button5Mask))
493 mouse_mask_state |= Button5Mask;
499 fprintf (stderr, "Button %d %s\n",
500 button_number, (is_down) ? "Pressed" : "Released");
502 snprintf (event_detail, 22, "%d%c", button_number,
503 (is_down) ? 'p' : 'r');
504 /* TODO: FIXME distinguish between physical and
507 mouse_e.type = (is_down) ?
508 Accessibility_BUTTON_PRESSED_EVENT :
509 Accessibility_BUTTON_RELEASED_EVENT;
510 mouse_e.id = button_number;
511 mouse_e.hw_code = button_number;
512 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
513 mouse_e.timestamp = 0;
514 mouse_e.event_string = "";
515 mouse_e.is_text = FALSE;
517 spi_controller_notify_mouselisteners (controller,
521 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
522 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", x, y);
525 spi_dec_set_unlatch_pending (controller, mask_return);
537 spi_dec_mouse_check (SpiDEController *controller,
538 int *x, int *y, gboolean *moved)
540 int win_x_return,win_y_return;
541 unsigned int mask_return;
542 Window root_return, child_return;
543 Display *display = spi_get_display ();
546 XQueryPointer(display, DefaultRootWindow (display),
547 &root_return, &child_return,
549 &win_x_return, &win_y_return, &mask_return);
551 * Since many clients grab the pointer, and X goes an automatic
552 * pointer grab on mouse-down, we often must detect mouse button events
553 * by polling rather than via a button grab.
554 * The while loop (rather than if) is used since it's possible that
555 * multiple buttons have changed state since we last checked.
557 if (mask_return != mouse_mask_state)
559 while (spi_dec_button_update_and_emit (controller, mask_return));
562 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
564 // TODO: combine these two signals?
565 dbus_uint32_t ix = *x, iy = *y;
566 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Abs", ix, iy);
567 ix -= last_mouse_pos->x;
568 iy -= last_mouse_pos->y;
569 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Rel", ix, iy);
570 last_mouse_pos->x = *x;
571 last_mouse_pos->y = *y;
583 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
586 dbus_uint32_t d1, d2;
589 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
590 prev_mask, current_mask);
593 /* set bits for the virtual modifiers like NUMLOCK */
594 if (prev_mask & _numlock_physical_mask)
595 prev_mask |= SPI_KEYMASK_NUMLOCK;
596 if (current_mask & _numlock_physical_mask)
597 current_mask |= SPI_KEYMASK_NUMLOCK;
599 d1 = prev_mask & key_modifier_mask;
600 d2 = current_mask & key_modifier_mask;
601 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "Modifiers", d1, d2);
605 spi_dec_poll_mouse_moved (gpointer data)
607 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
612 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
614 if ((mask_return & key_modifier_mask) !=
615 (mouse_mask_state & key_modifier_mask))
617 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
618 mouse_mask_state = mask_return;
625 spi_dec_poll_mouse_idle (gpointer data)
627 if (!have_mouse_event_listener && !have_mouse_listener)
629 else if (!spi_dec_poll_mouse_moved (data))
633 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
639 spi_dec_poll_mouse_moving (gpointer data)
641 if (!have_mouse_event_listener && !have_mouse_listener)
643 else if (spi_dec_poll_mouse_moved (data))
647 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
652 #ifdef WE_NEED_UGRAB_MOUSE
654 spi_dec_ungrab_mouse (gpointer data)
656 Display *display = spi_get_display ();
659 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
660 XDefaultRootWindow (spi_get_display ()));
667 spi_dec_init_mouse_listener (SpiDEController *dec)
670 Display *display = spi_get_display ();
674 if (XGrabButton (display, AnyButton, AnyModifier,
675 spi_get_root_window (),
676 True, ButtonPressMask | ButtonReleaseMask,
677 GrabModeSync, GrabModeAsync, None, None) != Success) {
679 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
683 XSync (display, False);
685 fprintf (stderr, "mouse buttons grabbed\n");
692 * Eventually we can use this to make the marshalling of mask types
693 * more sane, but for now we just use this to detect
694 * the use of 'virtual' masks such as numlock and convert them to
695 * system-specific mask values (i.e. ModMask).
698 static Accessibility_ControllerEventMask
699 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
701 Accessibility_ControllerEventMask tmp_mask;
702 gboolean has_numlock;
704 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
708 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
709 tmp_mask |= _numlock_physical_mask;
715 static DEControllerKeyListener *
716 spi_dec_key_listener_new (const char *bus_name,
719 const Accessibility_ControllerEventMask mask,
720 const dbus_uint32_t types,
721 const Accessibility_EventListenerMode *mode)
723 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
724 key_listener->listener.bus_name = g_strdup(bus_name);
725 key_listener->listener.path = g_strdup(path);
726 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
727 key_listener->keys = keys;
728 key_listener->mask = spi_dec_translate_mask (mask);
729 key_listener->listener.types = types;
732 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
733 memcpy(key_listener->mode, mode, sizeof(*mode));
736 key_listener->mode = NULL;
739 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
740 (unsigned int) key_listener->mask,
741 (int) (mode ? mode->global : 0),
742 (void *) key_listener->keys,
743 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
749 static DEControllerListener *
750 spi_dec_listener_new (const char *bus_name,
754 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
755 listener->bus_name = g_strdup(bus_name);
756 listener->path = g_strdup(path);
757 listener->type = SPI_DEVICE_TYPE_MOUSE;
758 listener->types = types;
762 static DEControllerListener *
763 spi_listener_clone (DEControllerListener *listener)
765 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
766 clone->bus_name = g_strdup (listener->bus_name);
767 clone->path = g_strdup (listener->path);
768 clone->type = listener->type;
769 clone->types = listener->types;
773 static GSList *keylist_clone (GSList *s)
778 for (l = s; l; l = g_slist_next(l))
780 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
783 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
784 kd->keycode = kds->keycode;
785 kd->keysym = kds->keysym;
786 kd->keystring = g_strdup(kds->keystring);
787 d = g_slist_append(d, kd);
793 static DEControllerKeyListener *
794 spi_key_listener_clone (DEControllerKeyListener *key_listener)
796 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
797 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
798 clone->listener.path = g_strdup (key_listener->listener.path);
799 clone->listener.type = SPI_DEVICE_TYPE_KBD;
800 clone->keys = keylist_clone (key_listener->keys);
801 clone->mask = key_listener->mask;
802 clone->listener.types = key_listener->listener.types;
803 if (key_listener->mode)
805 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
806 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
813 static void keylist_free(GSList *keys)
817 for (l = keys; l; l = g_slist_next(l))
819 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
820 g_free(kd->keystring);
827 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
829 keylist_free(key_listener->keys);
830 if (key_listener->mode) g_free(key_listener->mode);
831 g_free (key_listener);
835 spi_key_listener_clone_free (DEControllerKeyListener *clone)
837 spi_key_listener_data_free (clone);
841 spi_listener_clone_free (DEControllerListener *clone)
843 g_free (clone->path);
844 g_free (clone->bus_name);
849 spi_dec_listener_free (DEControllerListener *listener)
851 g_free (listener->bus_name);
852 g_free (listener->path);
853 if (listener->type == SPI_DEVICE_TYPE_KBD)
854 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
858 _register_keygrab (SpiDEController *controller,
859 DEControllerGrabMask *grab_mask)
863 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
864 spi_grab_mask_compare_values);
867 DEControllerGrabMask *cur_mask = l->data;
869 cur_mask->ref_count++;
870 if (cur_mask->pending_remove)
872 cur_mask->pending_remove = FALSE;
877 controller->keygrabs_list =
878 g_list_prepend (controller->keygrabs_list,
879 spi_grab_mask_clone (grab_mask));
884 _deregister_keygrab (SpiDEController *controller,
885 DEControllerGrabMask *grab_mask)
889 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
890 spi_grab_mask_compare_values);
894 DEControllerGrabMask *cur_mask = l->data;
896 cur_mask->ref_count--;
897 if (cur_mask->ref_count <= 0)
899 cur_mask->pending_remove = TRUE;
905 handle_keygrab (SpiDEController *controller,
906 DEControllerKeyListener *key_listener,
907 void (*process_cb) (SpiDEController *controller,
908 DEControllerGrabMask *grab_mask))
910 DEControllerGrabMask grab_mask = { 0 };
912 grab_mask.mod_mask = key_listener->mask;
913 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
915 grab_mask.key_val = AnyKey;
917 fprintf (stderr, "AnyKey grab!");
919 process_cb (controller, &grab_mask);
925 for (l = key_listener->keys; l; l = g_slist_next(l))
927 Accessibility_KeyDefinition *keydef = l->data;
928 long int key_val = keydef->keysym;
929 /* X Grabs require keycodes, not keysyms */
930 if (keydef->keystring && keydef->keystring[0])
932 key_val = XStringToKeysym(keydef->keystring);
936 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
940 key_val = keydef->keycode;
942 grab_mask.key_val = key_val;
943 process_cb (controller, &grab_mask);
949 spi_controller_register_global_keygrabs (SpiDEController *controller,
950 DEControllerKeyListener *key_listener)
952 handle_keygrab (controller, key_listener, _register_keygrab);
953 if (controller->xevie_display == NULL)
954 return spi_controller_update_key_grabs (controller, NULL);
960 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
961 DEControllerKeyListener *key_listener)
963 handle_keygrab (controller, key_listener, _deregister_keygrab);
964 if (controller->xevie_display == NULL)
965 spi_controller_update_key_grabs (controller, NULL);
969 spi_controller_register_device_listener (SpiDEController *controller,
970 DEControllerListener *listener)
972 DEControllerKeyListener *key_listener;
974 switch (listener->type) {
975 case SPI_DEVICE_TYPE_KBD:
976 key_listener = (DEControllerKeyListener *) listener;
978 controller->key_listeners = g_list_prepend (controller->key_listeners,
980 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
981 if (key_listener->mode->global)
983 return spi_controller_register_global_keygrabs (controller, key_listener);
988 case SPI_DEVICE_TYPE_MOUSE:
989 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
990 if (!have_mouse_listener)
992 have_mouse_listener = TRUE;
993 if (!have_mouse_event_listener)
994 g_timeout_add (100, spi_dec_poll_mouse_idle, controller->registry);
996 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
1005 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
1006 SpiRegistry *registry,
1007 DEControllerListener *listener,
1008 const Accessibility_DeviceEvent *key_event)
1010 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
1012 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
1015 dbus_bool_t consumed = FALSE;
1017 dbus_error_init(&error);
1018 if (spi_dbus_marshal_deviceEvent(message, key_event))
1020 // TODO: Evaluate performance: perhaps rework this whole architecture
1021 // to avoid blocking calls
1022 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
1026 dbus_error_init(&error);
1027 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1028 dbus_message_unref(reply);
1031 dbus_message_unref(message);
1036 spi_controller_notify_mouselisteners (SpiDEController *controller,
1037 const Accessibility_DeviceEvent *event)
1040 GSList *notify = NULL, *l2;
1041 GList **listeners = &controller->mouse_listeners;
1042 gboolean is_consumed;
1043 #ifdef SPI_KEYEVENT_DEBUG
1044 gboolean found = FALSE;
1051 for (l = *listeners; l; l = l->next)
1053 DEControllerListener *listener = l->data;
1055 if (spi_eventtype_seq_contains_event (listener->types, event))
1057 /* we clone (don't dup) the listener, to avoid refcount inc. */
1058 notify = g_slist_prepend (notify,
1059 spi_listener_clone (listener));
1060 #ifdef SPI_KEYEVENT_DEBUG
1066 #ifdef SPI_KEYEVENT_DEBUG
1069 g_print ("no match for event\n");
1073 is_consumed = FALSE;
1074 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1076 DEControllerListener *listener = l2->data;
1078 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1080 spi_listener_clone_free ((DEControllerListener *) l2->data);
1083 for (; l2; l2 = l2->next)
1085 DEControllerListener *listener = l2->data;
1086 spi_listener_clone_free (listener);
1087 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1090 g_slist_free (notify);
1093 if (is_consumed) g_message ("consumed\n");
1099 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1102 Accessibility_DeviceEvent mouse_e;
1103 gchar event_detail[24];
1104 gboolean is_consumed = FALSE;
1105 gboolean xkb_mod_unlatch_occurred;
1106 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1107 dbus_uint32_t ix, iy;
1109 int button = xbutton_event->button;
1111 unsigned int mouse_button_state = xbutton_event->state;
1116 mouse_button_state |= Button1Mask;
1119 mouse_button_state |= Button2Mask;
1122 mouse_button_state |= Button3Mask;
1125 mouse_button_state |= Button4Mask;
1128 mouse_button_state |= Button5Mask;
1132 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1133 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1136 fprintf (stderr, "mouse button %d %s (%x)\n",
1137 xbutton_event->button,
1138 (xevent->type == ButtonPress) ? "Press" : "Release",
1139 mouse_button_state);
1141 snprintf (event_detail, 22, "%d%c", button,
1142 (xevent->type == ButtonPress) ? 'p' : 'r');
1144 /* TODO: FIXME distinguish between physical and logical buttons */
1145 mouse_e.type = (xevent->type == ButtonPress) ?
1146 Accessibility_BUTTON_PRESSED_EVENT :
1147 Accessibility_BUTTON_RELEASED_EVENT;
1148 mouse_e.id = button;
1149 mouse_e.hw_code = button;
1150 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1151 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1152 mouse_e.event_string = "";
1153 mouse_e.is_text = FALSE;
1154 if ((mouse_button_state & mouse_button_mask) !=
1155 (mouse_mask_state & mouse_button_mask))
1157 if ((mouse_mask_state & key_modifier_mask) !=
1158 (mouse_button_state & key_modifier_mask))
1159 spi_dec_emit_modifier_event (controller,
1160 mouse_mask_state, mouse_button_state);
1161 mouse_mask_state = mouse_button_state;
1163 spi_controller_notify_mouselisteners (controller, &mouse_e);
1164 ix = last_mouse_pos->x;
1165 iy = last_mouse_pos->y;
1166 /* TODO - Work out which part of the spec this emit is fulfilling */
1167 //emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, ix, iy);
1170 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1171 xevent->type == ButtonRelease);
1173 /* if client wants to consume this event, and XKB latch state was
1174 * unset by this button event, we reset it
1176 if (is_consumed && xkb_mod_unlatch_occurred)
1177 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1179 XAllowEvents (spi_get_display (),
1180 (is_consumed) ? SyncPointer : ReplayPointer,
1185 global_filter_fn (XEvent *xevent, void *data)
1187 SpiDEController *controller;
1188 DEControllerPrivateData *priv;
1189 Display *display = spi_get_display ();
1190 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1191 priv = (DEControllerPrivateData *)
1192 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1194 if (xevent->type == MappingNotify)
1197 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1199 if (controller->xevie_display == NULL)
1201 gboolean is_consumed;
1204 spi_device_event_controller_forward_key_event (controller, xevent);
1211 n_events = XPending (display);
1213 #ifdef SPI_KEYEVENT_DEBUG
1214 g_print ("Number of events pending: %d\n", n_events);
1216 for (i = 0; i < n_events; i++)
1218 XNextEvent (display, &next_event);
1219 if (next_event.type != KeyPress &&
1220 next_event.type != KeyRelease)
1221 g_warning ("Unexpected event type %d in queue", next_event.type);
1224 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1226 XUngrabKeyboard (display, CurrentTime);
1230 if (xevent->type == KeyPress)
1231 wait_for_release_event (xevent, controller);
1232 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1238 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1240 spi_device_event_controller_forward_mouse_event (controller, xevent);
1242 if (xevent->type == priv->xkb_base_event_code)
1244 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1245 /* ugly but probably necessary...*/
1246 XSynchronize (display, TRUE);
1248 if (xkb_ev->xkb_type == XkbStateNotify)
1250 XkbStateNotifyEvent *xkb_snev =
1251 (XkbStateNotifyEvent *) xkb_ev;
1252 /* check the mouse, to catch mouse events grabbed by
1253 * another client; in case we should revert this XKB delatch
1255 if (!priv->pending_xkb_mod_relatch_mask)
1259 spi_dec_mouse_check (controller, &x, &y, &moved);
1261 /* we check again, since the previous call may have
1262 changed this flag */
1263 if (priv->pending_xkb_mod_relatch_mask)
1265 unsigned int feedback_mask;
1266 #ifdef SPI_XKB_DEBUG
1267 fprintf (stderr, "relatching %x\n",
1268 priv->pending_xkb_mod_relatch_mask);
1270 /* temporarily turn off the latch bell, if it's on */
1271 XkbGetControls (display,
1272 XkbAccessXFeedbackMask,
1274 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1275 if (feedback_mask & XkbAX_StickyKeysFBMask)
1277 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1279 priv->xkb_desc->ctrls->ax_options
1280 &= ~(XkbAX_StickyKeysFBMask);
1281 XkbChangeControls (display, priv->xkb_desc, &changes);
1283 /* TODO: account for lock as well as latch */
1284 XkbLatchModifiers (display,
1286 priv->pending_xkb_mod_relatch_mask,
1287 priv->pending_xkb_mod_relatch_mask);
1288 if (feedback_mask & XkbAX_StickyKeysFBMask)
1290 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1292 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1293 XkbChangeControls (display, priv->xkb_desc, &changes);
1295 #ifdef SPI_XKB_DEBUG
1296 fprintf (stderr, "relatched %x\n",
1297 priv->pending_xkb_mod_relatch_mask);
1299 priv->pending_xkb_mod_relatch_mask = 0;
1303 priv->xkb_latch_mask = xkb_snev->latched_mods;
1306 XSynchronize (display, FALSE);
1313 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1315 if (error->error_code == BadAccess)
1317 g_message ("Could not complete key grab: grab already in use.\n");
1318 spi_error_code = BadAccess;
1323 return (*x_default_error_handler) (display, error);
1328 spi_controller_register_with_devices (SpiDEController *controller)
1330 DEControllerPrivateData *priv;
1331 int event_base, error_base, major_version, minor_version;
1333 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1334 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1336 XTestGrabControl (spi_get_display (), True);
1339 /* calls to device-specific implementations and routines go here */
1340 /* register with: keyboard hardware code handler */
1341 /* register with: (translated) keystroke handler */
1343 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1344 &priv->xkb_major_extension_opcode,
1345 &priv->xkb_base_event_code,
1346 &priv->xkb_base_error_code, NULL, NULL);
1350 guint64 reserved = 0;
1351 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1352 XkbSelectEvents (spi_get_display (),
1354 XkbStateNotifyMask, XkbStateNotifyMask);
1355 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1357 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1359 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1361 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1363 /* don't use this one if there's a grab client! */
1365 /* Runtime errors are generated from these functions,
1366 * that are then quashed. Equivalent to:
1373 spi_x_error_trap ();
1374 XGrabKey (spi_get_display (), i, 0,
1375 spi_get_root_window (),
1377 GrabModeSync, GrabModeSync);
1378 XSync (spi_get_display (), TRUE);
1379 XUngrabKey (spi_get_display (), i, 0,
1380 spi_get_root_window ());
1381 if (!spi_x_error_release ())
1391 priv->reserved_keycode = reserved;
1392 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1396 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1397 priv->reserved_keysym = XK_numbersign;
1399 #ifdef SPI_RESERVED_DEBUG
1401 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1402 fprintf (stderr, "%x\n", sym);
1403 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1405 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1410 spi_set_filter (global_filter_fn, controller);
1411 spi_set_events (KeyPressMask | KeyReleaseMask);
1413 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1417 spi_key_set_contains_key (GSList *key_set,
1418 const Accessibility_DeviceEvent *key_event)
1427 g_print ("null key set!\n");
1432 len = g_slist_length (key_set);
1434 if (len == 0) /* special case, means "all keys/any key" */
1437 g_print ("anykey\n");
1442 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1444 Accessibility_KeyDefinition *kd = l->data;
1445 #ifdef SPI_KEYEVENT_DEBUG
1446 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1450 (int) key_event->id,
1451 (int) key_event->hw_code,
1452 key_event->event_string);
1454 if (kd->keysym == (dbus_uint32_t) key_event->id)
1458 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1462 if (key_event->event_string && key_event->event_string[0] &&
1463 !strcmp (kd->keystring, key_event->event_string))
1473 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1474 const Accessibility_DeviceEvent *event)
1476 if (types == 0) /* special case, means "all events/any event" */
1481 return (types & (1 << event->type));
1485 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1486 DEControllerKeyListener *listener,
1487 dbus_bool_t is_system_global)
1489 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1490 spi_key_set_contains_key (listener->keys, key_event) &&
1491 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1492 (is_system_global == listener->mode->global))
1503 spi_controller_notify_keylisteners (SpiDEController *controller,
1504 Accessibility_DeviceEvent *key_event,
1505 dbus_bool_t is_system_global)
1508 GSList *notify = NULL, *l2;
1509 GList **key_listeners = &controller->key_listeners;
1510 gboolean is_consumed;
1517 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1518 if (key_event->modifiers & _numlock_physical_mask)
1519 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1521 for (l = *key_listeners; l; l = l->next)
1523 DEControllerKeyListener *key_listener = l->data;
1525 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1527 /* we clone (don't dup) the listener, to avoid refcount inc. */
1528 notify = g_slist_prepend (notify,
1529 spi_key_listener_clone (key_listener));
1533 #ifdef SPI_KEYEVENT_DEBUG
1536 g_print ("no match for event\n");
1540 is_consumed = FALSE;
1541 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1543 DEControllerKeyListener *key_listener = l2->data;
1545 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1546 key_listener->mode->preemptive;
1548 spi_key_listener_clone_free (key_listener);
1551 for (; l2; l2 = l2->next)
1553 DEControllerKeyListener *key_listener = l2->data;
1554 spi_key_listener_clone_free (key_listener);
1555 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1558 g_slist_free (notify);
1561 if (is_consumed) g_message ("consumed\n");
1567 spi_clear_error_state (void)
1569 gboolean retval = spi_error_code != 0;
1574 static Accessibility_DeviceEvent
1575 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1577 Accessibility_DeviceEvent key_event;
1579 const int cbuf_bytes = 20;
1583 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1584 key_event.id = (dbus_int32_t)(keysym);
1585 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1586 if (((XEvent *) x_key_event)->type == KeyPress)
1588 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1592 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1594 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1595 key_event.is_text = FALSE;
1599 key_event.event_string = g_strdup ("space");
1602 key_event.event_string = g_strdup ("Tab");
1605 key_event.event_string = g_strdup ("Backspace");
1608 key_event.event_string = g_strdup ("Return");
1611 key_event.event_string = g_strdup ("Home");
1614 key_event.event_string = g_strdup ("Page_Down");
1617 key_event.event_string = g_strdup ("Page_Up");
1620 key_event.event_string = g_strdup ("F1");
1623 key_event.event_string = g_strdup ("F2");
1626 key_event.event_string = g_strdup ("F3");
1629 key_event.event_string = g_strdup ("F4");
1632 key_event.event_string = g_strdup ("F5");
1635 key_event.event_string = g_strdup ("F6");
1638 key_event.event_string = g_strdup ("F7");
1641 key_event.event_string = g_strdup ("F8");
1644 key_event.event_string = g_strdup ("F9");
1647 key_event.event_string = g_strdup ("F10");
1650 key_event.event_string = g_strdup ("F11");
1653 key_event.event_string = g_strdup ("F12");
1656 key_event.event_string = g_strdup ("End");
1659 key_event.event_string = g_strdup ("Escape");
1662 key_event.event_string = g_strdup ("Up");
1665 key_event.event_string = g_strdup ("Down");
1668 key_event.event_string = g_strdup ("Left");
1671 key_event.event_string = g_strdup ("Right");
1677 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1678 key_event.event_string = g_strdup (cbuf);
1679 c = keysym2ucs (keysym);
1680 if (c > 0 && !g_unichar_iscntrl (c))
1682 key_event.is_text = TRUE;
1683 /* incorrect for some composed chars? */
1688 key_event.event_string = g_strdup ("");
1692 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1693 #ifdef SPI_KEYEVENT_DEBUG
1695 char *pressed_str = "pressed";
1696 char *released_str = "released";
1699 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1700 state_ptr = pressed_str;
1702 state_ptr = released_str;
1705 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1706 (unsigned long) keysym,
1708 keysym ? (int) keysym : '*',
1709 (int) x_key_event->state,
1710 key_event.event_string,
1711 key_event.event_string[0],
1712 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1716 fprintf (stderr, "%s%c\n",
1717 (x_key_event->state & Mod1Mask)?"Alt-":"",
1718 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1719 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1720 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1721 #endif /* SPI_DEBUG */
1726 spi_controller_update_key_grabs (SpiDEController *controller,
1727 Accessibility_DeviceEvent *recv)
1730 gboolean update_failed = FALSE;
1731 KeyCode keycode = 0;
1733 g_return_val_if_fail (controller != NULL, FALSE);
1736 * masks known to work with default RH 7.1+:
1737 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1738 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1739 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1740 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1742 * ControlMask grabs are broken, must be in use already
1745 keycode = keycode_for_keysym (controller, recv->id, NULL);
1746 for (l = controller->keygrabs_list; l; l = next)
1749 gboolean re_issue_grab;
1750 DEControllerGrabMask *grab_mask = l->data;
1754 re_issue_grab = recv &&
1755 (recv->modifiers & grab_mask->mod_mask) &&
1756 (grab_mask->key_val == keycode);
1759 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1760 (long int) grab_mask->key_val,
1761 (long int) grab_mask->mod_mask,
1762 grab_mask->pending_add ? '+' : '.',
1763 grab_mask->pending_remove ? '-' : '.',
1764 re_issue_grab ? "re-issue": "");
1769 if (grab_mask->pending_add && grab_mask->pending_remove)
1773 else if (grab_mask->pending_remove)
1776 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1778 XUngrabKey (spi_get_display (),
1780 grab_mask->mod_mask,
1781 spi_get_root_window ());
1785 else if (grab_mask->pending_add || re_issue_grab)
1789 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1791 XGrabKey (spi_get_display (),
1793 grab_mask->mod_mask,
1794 spi_get_root_window (),
1798 XSync (spi_get_display (), False);
1799 update_failed = spi_clear_error_state ();
1800 if (update_failed) {
1801 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1806 grab_mask->pending_add = FALSE;
1807 grab_mask->pending_remove = FALSE;
1811 g_assert (grab_mask->ref_count <= 0);
1813 controller->keygrabs_list = g_list_delete_link (
1814 controller->keygrabs_list, l);
1816 spi_grab_mask_free (grab_mask);
1821 return ! update_failed;
1825 * Implemented GObject::finalize
1828 spi_device_event_controller_object_finalize (GObject *object)
1830 SpiDEController *controller;
1831 DEControllerPrivateData *private;
1832 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1833 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1835 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1837 /* disconnect any special listeners, get rid of outstanding keygrabs */
1838 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1841 if (controller->xevie_display != NULL)
1843 XevieEnd(controller->xevie_display);
1844 #ifdef SPI_KEYEVENT_DEBUG
1845 printf("XevieEnd(dpy) finished \n");
1850 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1851 if (private->xkb_desc)
1852 XkbFreeKeyboard (private->xkb_desc, 0, True);
1854 parent_class->finalize (object);
1858 * DBus Accessibility::DEController::RegisterKeystrokeListener
1859 * method implementation
1861 static DBusMessage *
1862 impl_register_keystroke_listener (DBusConnection *bus,
1863 DBusMessage *message,
1866 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1867 DEControllerKeyListener *dec_listener;
1868 DBusMessageIter iter, iter_array;
1870 GSList *keys = NULL;
1871 dbus_int32_t mask, type;
1872 Accessibility_EventListenerMode *mode;
1874 DBusMessage *reply = NULL;
1877 dbus_message_iter_init(message, &iter);
1878 // TODO: verify type signature
1879 dbus_message_iter_get_basic(&iter, &path);
1880 dbus_message_iter_next(&iter);
1881 dbus_message_iter_recurse(&iter, &iter_array);
1882 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1884 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1885 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))
1889 kd->keystring = g_strdup (keystring);
1890 keys = g_slist_append(keys, kd);
1892 dbus_message_iter_next(&iter);
1893 dbus_message_iter_get_basic(&iter, &mask);
1894 dbus_message_iter_next(&iter);
1895 if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
1896 dbus_message_iter_get_basic(&iter, &type);
1899 dbus_message_iter_recurse(&iter, &iter_array);
1900 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1903 dbus_message_iter_get_basic (&iter_array, &t);
1905 dbus_message_iter_next (&iter_array);
1907 dbus_message_iter_next (&iter_array);
1909 dbus_message_iter_next(&iter);
1910 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1913 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);
1916 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1917 dbus_message_get_sender(message), path, (unsigned long) mask);
1919 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1920 ret = spi_controller_register_device_listener (
1921 controller, (DEControllerListener *) dec_listener);
1922 reply = dbus_message_new_method_return (message);
1925 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1931 * DBus Accessibility::DEController::RegisterDeviceEventListener
1932 * method implementation
1934 static DBusMessage *
1935 impl_register_device_event_listener (DBusConnection *bus,
1936 DBusMessage *message,
1939 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1940 DEControllerListener *dec_listener;
1943 dbus_int32_t event_types;
1945 DBusMessage *reply = NULL;
1947 dbus_error_init(&error);
1948 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1950 return invalid_arguments_error (message);
1952 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1953 ret = spi_controller_register_device_listener (
1954 controller, (DEControllerListener *) dec_listener);
1955 reply = dbus_message_new_method_return (message);
1958 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1964 DBusConnection *bus;
1965 DEControllerListener *listener;
1966 } RemoveListenerClosure;
1968 static SpiReEntrantContinue
1969 remove_listener_cb (GList * const *list,
1972 DEControllerListener *listener = (*list)->data;
1973 RemoveListenerClosure *ctx = user_data;
1975 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1976 !strcmp(ctx->listener->path, listener->path))
1978 spi_re_entrant_list_delete_link (list);
1979 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1980 spi_dec_listener_free (listener);
1983 return SPI_RE_ENTRANT_CONTINUE;
1986 static SpiReEntrantContinue
1987 copy_key_listener_cb (GList * const *list,
1990 DEControllerKeyListener *key_listener = (*list)->data;
1991 RemoveListenerClosure *ctx = user_data;
1993 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1994 !strcmp(ctx->listener->path, key_listener->listener.path))
1996 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1997 DEControllerKeyListener *ctx_key_listener =
1998 (DEControllerKeyListener *) ctx->listener;
1999 keylist_free (ctx_key_listener->keys);
2000 ctx_key_listener->keys = keylist_clone(key_listener->keys);
2003 return SPI_RE_ENTRANT_CONTINUE;
2007 spi_controller_deregister_device_listener (SpiDEController *controller,
2008 DEControllerListener *listener)
2010 RemoveListenerClosure ctx;
2012 ctx.bus = controller->bus;
2013 ctx.listener = listener;
2015 spi_re_entrant_list_foreach (&controller->mouse_listeners,
2016 remove_listener_cb, &ctx);
2017 if (!controller->mouse_listeners)
2018 have_mouse_listener = FALSE;
2022 spi_deregister_controller_key_listener (SpiDEController *controller,
2023 DEControllerKeyListener *key_listener)
2025 RemoveListenerClosure ctx;
2027 ctx.bus = controller->bus;
2028 ctx.listener = (DEControllerListener *) key_listener;
2030 /* special case, copy keyset from existing controller list entry */
2031 if (g_slist_length(key_listener->keys) == 0)
2033 spi_re_entrant_list_foreach (&controller->key_listeners,
2034 copy_key_listener_cb, &ctx);
2037 spi_controller_deregister_global_keygrabs (controller, key_listener);
2039 spi_re_entrant_list_foreach (&controller->key_listeners,
2040 remove_listener_cb, &ctx);
2045 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
2049 for (l = controller->mouse_listeners; l; l = tmp)
2051 DEControllerListener *listener = l->data;
2053 if (!strcmp (listener->bus_name, bus_name))
2055 spi_controller_deregister_device_listener (controller, listener);
2058 for (l = controller->key_listeners; l; l = tmp)
2060 DEControllerKeyListener *key_listener = l->data;
2062 if (!strcmp (key_listener->listener.bus_name, bus_name))
2064 spi_deregister_controller_key_listener (controller, key_listener);
2070 * DBus Accessibility::DEController::DeregisterKeystrokeListener
2071 * method implementation
2073 static DBusMessage *
2074 impl_deregister_keystroke_listener (DBusConnection *bus,
2075 DBusMessage *message,
2078 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2079 DEControllerKeyListener *key_listener;
2080 DBusMessageIter iter, iter_array;
2082 GSList *keys = NULL;
2083 dbus_int32_t mask, type;
2084 DBusMessage *reply = NULL;
2086 dbus_message_iter_init(message, &iter);
2087 // TODO: verify type signature
2088 dbus_message_iter_get_basic(&iter, &path);
2089 dbus_message_iter_next(&iter);
2090 dbus_message_iter_recurse(&iter, &iter_array);
2091 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2093 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2096 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))
2100 kd->keystring = g_strdup (keystring);
2101 keys = g_slist_append(keys, kd);
2103 dbus_message_iter_next(&iter);
2104 dbus_message_iter_get_basic(&iter, &mask);
2105 dbus_message_iter_next(&iter);
2106 dbus_message_iter_get_basic(&iter, &type);
2107 dbus_message_iter_next(&iter);
2108 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2109 #ifdef SPI_DEREGISTER_DEBUG
2110 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2111 (void *) l, (unsigned long) mask->value);
2114 spi_deregister_controller_key_listener (controller, key_listener);
2116 spi_dec_listener_free ((DEControllerListener *) key_listener);
2117 reply = dbus_message_new_method_return (message);
2122 * DBus Accessibility::DEController::DeregisterDeviceEventListener
2123 * method implementation
2125 static DBusMessage *
2126 impl_deregister_device_event_listener (DBusConnection *bus,
2127 DBusMessage *message,
2130 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2131 DEControllerListener *listener;
2134 dbus_int32_t event_types;
2135 DBusMessage *reply = NULL;
2137 dbus_error_init(&error);
2138 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2140 return invalid_arguments_error (message);
2142 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2143 spi_controller_deregister_device_listener (
2144 controller, listener);
2145 reply = dbus_message_new_method_return (message);
2149 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2151 unsigned int retval = 0;
2152 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2153 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2155 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2156 retval = XkbGetSlowKeysDelay (spi_get_display (),
2157 XkbUseCoreKbd, &bounce_delay);
2159 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2161 Status s = XkbGetControls (spi_get_display (),
2162 XkbAllControlsMask, priv->xkb_desc);
2165 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2166 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2171 #ifdef SPI_XKB_DEBUG
2172 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2177 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2179 unsigned int retval = 0;
2180 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2181 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2183 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2184 retval = XkbGetBounceKeysDelay (spi_get_display (),
2185 XkbUseCoreKbd, &bounce_delay);
2187 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2189 Status s = XkbGetControls (spi_get_display (),
2190 XkbAllControlsMask, priv->xkb_desc);
2193 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2194 retval = priv->xkb_desc->ctrls->debounce_delay;
2199 #ifdef SPI_XKB_DEBUG
2200 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2206 dec_synth_keycode_press (SpiDEController *controller,
2207 unsigned int keycode)
2209 unsigned int time = CurrentTime;
2210 unsigned int bounce_delay;
2211 unsigned int elapsed_msec;
2213 DEControllerPrivateData *priv =
2214 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2215 spi_dec_private_quark);
2216 if (keycode == priv->last_release_keycode)
2218 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2221 gettimeofday (&tv, NULL);
2223 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2224 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2225 #ifdef SPI_XKB_DEBUG
2226 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2227 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2229 #ifdef THIS_IS_BROKEN
2230 if (elapsed_msec < bounce_delay)
2231 time = bounce_delay - elapsed_msec + 1;
2233 time = bounce_delay + 10;
2234 /* fudge for broken XTest */
2236 #ifdef SPI_XKB_DEBUG
2237 fprintf (stderr, "waiting %d ms\n", time);
2241 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2242 priv->last_press_keycode = keycode;
2243 XFlush (spi_get_display ());
2244 XSync (spi_get_display (), False);
2245 gettimeofday (&priv->last_press_time, NULL);
2250 dec_synth_keycode_release (SpiDEController *controller,
2251 unsigned int keycode)
2253 unsigned int time = CurrentTime;
2254 unsigned int slow_delay;
2255 unsigned int elapsed_msec;
2257 DEControllerPrivateData *priv =
2258 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2259 spi_dec_private_quark);
2260 if (keycode == priv->last_press_keycode)
2262 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2265 gettimeofday (&tv, NULL);
2267 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2268 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2269 #ifdef SPI_XKB_DEBUG
2270 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2271 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2273 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2274 if (elapsed_msec < slow_delay)
2275 time = slow_delay - elapsed_msec + 1;
2277 time = slow_delay + 10;
2278 /* our XTest seems broken, we have to add slop as above */
2280 #ifdef SPI_XKB_DEBUG
2281 fprintf (stderr, "waiting %d ms\n", time);
2285 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2286 priv->last_release_keycode = keycode;
2287 XSync (spi_get_display (), False);
2288 gettimeofday (&priv->last_release_time, NULL);
2293 dec_get_modifier_state (SpiDEController *controller)
2295 return mouse_mask_state;
2299 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2301 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2302 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2304 if (priv->have_xkb) {
2305 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2306 modifiers, modifiers);
2309 for (mod_index=0;mod_index<8;mod_index++)
2310 if (modifiers & (1<<mod_index))
2311 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2317 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2319 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2320 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2322 if (priv->have_xkb) {
2323 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2327 for (mod_index=0;mod_index<8;mod_index++)
2328 if (modifiers & (1<<mod_index))
2329 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2335 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2337 return ucs2keysym ((long) unichar);
2341 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2343 KeyCode key_synth_code;
2344 unsigned int modifiers, synth_mods, lock_mods;
2346 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2348 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2350 /* TODO: set the modifiers accordingly! */
2351 modifiers = dec_get_modifier_state (controller);
2352 /* side-effect; we may unset mousebutton modifiers here! */
2355 if (synth_mods != modifiers) {
2356 lock_mods = synth_mods & ~modifiers;
2357 dec_lock_modifiers (controller, lock_mods);
2359 dec_synth_keycode_press (controller, key_synth_code);
2360 dec_synth_keycode_release (controller, key_synth_code);
2362 if (synth_mods != modifiers)
2363 dec_unlock_modifiers (controller, lock_mods);
2369 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2371 /* probably we need to create and inject an XIM handler eventually. */
2372 /* for now, try to match the string to existing
2373 * keycode+modifier states.
2377 gunichar unichar = 0;
2379 gboolean retval = TRUE;
2382 maxlen = strlen (keystring) + 1;
2383 keysyms = g_new0 (KeySym, maxlen);
2384 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2389 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2391 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2396 mbytes = g_unichar_to_utf8 (unichar, bytes);
2397 bytes[mbytes] = '\0';
2399 fprintf (stderr, "[unichar %s]", bytes);
2401 keysym = dec_keysym_for_unichar (controller, unichar);
2402 if (keysym == NoSymbol) {
2404 fprintf (stderr, "no keysym for %s", bytes);
2409 keysyms[i++] = keysym;
2410 keystring = g_utf8_next_char (keystring);
2413 XSynchronize (spi_get_display (), TRUE);
2414 for (i = 0; keysyms[i]; ++i) {
2415 if (!dec_synth_keysym (controller, keysyms[i])) {
2417 fprintf (stderr, "could not synthesize %c\n",
2424 XSynchronize (spi_get_display (), FALSE);
2433 * DBus Accessibility::DEController::RegisterKeystrokeListener
2434 * method implementation
2436 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2438 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2440 dbus_int32_t keycode;
2442 dbus_uint32_t synth_type;
2445 DEControllerPrivateData *priv;
2446 DBusMessage *reply = NULL;
2448 dbus_error_init(&error);
2449 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2451 return invalid_arguments_error (message);
2455 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2456 (long) keycode, (int) synth_type);
2458 /* TODO: hide/wrap/remove X dependency */
2461 * TODO: when initializing, query for XTest extension before using,
2462 * and fall back to XSendEvent() if XTest is not available.
2465 spi_x_error_trap ();
2467 priv = (DEControllerPrivateData *)
2468 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2470 if (!priv->have_xkb && xmkeymap==NULL) {
2471 xmkeymap = XGetModifierMapping(spi_get_display ());
2476 case Accessibility_KEY_PRESS:
2477 dec_synth_keycode_press (controller, keycode);
2479 case Accessibility_KEY_PRESSRELEASE:
2480 dec_synth_keycode_press (controller, keycode);
2481 case Accessibility_KEY_RELEASE:
2482 dec_synth_keycode_release (controller, keycode);
2484 case Accessibility_KEY_SYM:
2485 #ifdef SPI_XKB_DEBUG
2486 fprintf (stderr, "KeySym synthesis\n");
2489 * note: we are using long for 'keycode'
2490 * in our arg list; it can contain either
2491 * a keycode or a keysym.
2493 dec_synth_keysym (controller, (KeySym) keycode);
2495 case Accessibility_KEY_STRING:
2496 if (!dec_synth_keystring (controller, keystring))
2497 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2501 if (synth_type == Accessibility_KEY_SYM) {
2505 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2507 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2509 spi_dec_clear_unlatch_pending (controller);
2511 reply = dbus_message_new_method_return (message);
2515 /* Accessibility::DEController::GenerateMouseEvent */
2516 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2522 DBusMessage *reply = NULL;
2524 gboolean err = FALSE;
2525 Display *display = spi_get_display ();
2527 dbus_error_init (&error);
2528 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2530 return invalid_arguments_error (message);
2534 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2535 eventName, (long int) x, (long int) y);
2537 switch (eventName[0])
2540 switch (eventName[1])
2542 /* TODO: check number of buttons before parsing */
2563 if (x != -1 && y != -1)
2565 XTestFakeMotionEvent (display, DefaultScreen (display),
2568 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2569 if (eventName[2] == 'c')
2570 XTestFakeButtonEvent (display, button, FALSE, 1);
2571 else if (eventName[2] == 'd')
2573 XTestFakeButtonEvent (display, button, FALSE, 1);
2574 XTestFakeButtonEvent (display, button, TRUE, 2);
2575 XTestFakeButtonEvent (display, button, FALSE, 3);
2579 case 'r': /* relative motion */
2580 XTestFakeRelativeMotionEvent (display, x, y, 0);
2582 case 'a': /* absolute motion */
2583 XTestFakeMotionEvent (display, DefaultScreen (display),
2587 reply = dbus_message_new_method_return (message);
2591 /* Accessibility::DEController::NotifyListenersSync */
2592 static DBusMessage *
2593 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2595 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2596 Accessibility_DeviceEvent event;
2598 DBusMessage *reply = NULL;
2600 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2602 return invalid_arguments_error (message);
2605 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2606 controller, (int) event.id);
2608 ret = spi_controller_notify_keylisteners (controller,
2609 (Accessibility_DeviceEvent *)
2612 reply = dbus_message_new_method_return (message);
2615 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2620 static DBusMessage *
2621 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2623 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2624 Accessibility_DeviceEvent event;
2625 DBusMessage *reply = NULL;
2627 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2629 return invalid_arguments_error (message);
2632 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2633 controller, (int) event.id);
2635 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2637 reply = dbus_message_new_method_return (message);
2642 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2644 GObjectClass * object_class = (GObjectClass *) klass;
2646 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2648 object_class->finalize = spi_device_event_controller_object_finalize;
2650 if (!spi_dec_private_quark)
2651 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2655 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2661 handle_io (GIOChannel *source,
2662 GIOCondition condition,
2665 SpiDEController *controller = (SpiDEController *) data;
2666 gboolean is_consumed = FALSE;
2669 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2671 if (ev.type == KeyPress || ev.type == KeyRelease)
2672 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2675 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2680 #endif /* HAVE_XEVIE */
2683 spi_device_event_controller_init (SpiDEController *device_event_controller)
2685 spi_events_init (spi_get_display());
2689 #endif /* HAVE_XEVIE */
2691 DEControllerPrivateData *private;
2692 device_event_controller->key_listeners = NULL;
2693 device_event_controller->mouse_listeners = NULL;
2694 device_event_controller->keygrabs_list = NULL;
2695 device_event_controller->xevie_display = NULL;
2698 device_event_controller->xevie_display = XOpenDisplay(NULL);
2700 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2702 #ifdef SPI_KEYEVENT_DEBUG
2703 fprintf (stderr, "XevieStart() success \n");
2705 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2707 fd = ConnectionNumber(device_event_controller->xevie_display);
2708 ioc = g_io_channel_unix_new (fd);
2709 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2710 g_io_channel_unref (ioc);
2714 device_event_controller->xevie_display = NULL;
2715 #ifdef SPI_KEYEVENT_DEBUG
2716 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2719 #endif /* HAVE_XEVIE */
2721 private = g_new0 (DEControllerPrivateData, 1);
2722 gettimeofday (&private->last_press_time, NULL);
2723 gettimeofday (&private->last_release_time, NULL);
2724 g_object_set_qdata (G_OBJECT (device_event_controller),
2725 spi_dec_private_quark,
2727 spi_controller_register_with_devices (device_event_controller);
2731 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2732 const XEvent *event)
2734 Accessibility_DeviceEvent key_event;
2737 g_assert (event->type == KeyPress || event->type == KeyRelease);
2739 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2741 if (controller->xevie_display == NULL)
2742 spi_controller_update_key_grabs (controller, &key_event);
2744 /* relay to listeners, and decide whether to consume it or not */
2745 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2746 g_free(key_event.event_string);
2752 is_key_released (KeyCode code)
2757 XQueryKeymap (spi_get_display (), keys);
2758 down = BIT (keys, code);
2763 check_release (gpointer data)
2766 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2767 KeyCode code = event->hw_code;
2769 released = is_key_released (code);
2773 check_release_handler = 0;
2774 event->type = Accessibility_KEY_RELEASED_EVENT;
2775 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2777 return (released == 0);
2780 static void wait_for_release_event (XEvent *event,
2781 SpiDEController *controller)
2783 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2784 saved_controller = controller;
2785 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2788 static DBusHandlerResult
2789 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2791 const gchar *iface = dbus_message_get_interface (message);
2792 const gchar *member = dbus_message_get_member (message);
2793 const gint type = dbus_message_get_type (message);
2795 DBusMessage *reply = NULL;
2797 /* Check for basic reasons not to handle */
2798 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2801 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2803 if (strcmp (iface, SPI_DBUS_INTERFACE_DEC))
2804 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2806 if (!strcmp (member, "RegisterKeystrokeListener"))
2807 reply = impl_register_keystroke_listener (bus, message, user_data);
2808 else if (!strcmp (member, "RegisterDeviceEventListener"))
2809 reply = impl_register_device_event_listener (bus, message, user_data);
2810 else if (!strcmp (member, "DeregisterKeystrokeListener"))
2811 reply = impl_deregister_keystroke_listener (bus, message, user_data);
2812 else if (!strcmp (member, "DeregisterDeviceEventListener"))
2813 reply = impl_deregister_device_event_listener (bus, message, user_data);
2814 else if (!strcmp (member, "GenerateKeyboardEvent"))
2815 reply = impl_generate_keyboard_event (bus, message, user_data);
2816 else if (!strcmp (member, "GenerateMouseEvent"))
2817 reply = impl_generate_mouse_event (bus, message, user_data);
2818 else if (!strcmp (member, "NotifyListenersSync"))
2819 reply = impl_notify_listeners_sync (bus, message, user_data);
2820 else if (!strcmp (member, "NotifyListenersAsync"))
2821 reply = impl_notify_listeners_async (bus, message, user_data);
2823 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2827 reply = dbus_message_new_method_return (message);
2829 dbus_connection_send (bus, reply, NULL);
2830 dbus_message_unref (reply);
2832 return DBUS_HANDLER_RESULT_HANDLED;
2835 static DBusObjectPathVTable dec_vtable =
2839 NULL, NULL, NULL, NULL
2843 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2845 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2847 dec->registry = g_object_ref (reg);
2850 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2852 spi_dec_init_mouse_listener (dec);
2858 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2860 if (!have_mouse_event_listener)
2862 have_mouse_event_listener = TRUE;
2863 if (!have_mouse_listener)
2864 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
2869 spi_device_event_controller_stop_poll_mouse (void)
2871 have_mouse_event_listener = FALSE;