1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2003 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
38 #include <X11/extensions/XTest.h>
39 #include <X11/XKBlib.h>
42 #include <X11/keysymdef.h>
45 #include <X11/Xproto.h>
47 #include <X11/extensions/Xevie.h>
48 #endif /* HAVE_XEVIE */
52 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
53 #include <gdk/gdkkeysyms.h>
54 #include <gdk/gdkwindow.h>
56 #include <spi-common/keymasks.h>
57 #include <spi-common/spi-dbus.h>
58 #include <spi-common/spi-types.h>
60 #include <droute/droute.h>
62 #include "deviceeventcontroller.h"
63 #include "reentrant-list.h"
65 KeySym ucs2keysym (long ucs);
66 long keysym2ucs(KeySym keysym);
68 #define CHECK_RELEASE_DELAY 20
69 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
70 static guint check_release_handler = 0;
71 static Accessibility_DeviceEvent pressed_event;
72 static SpiDEController *saved_controller;
73 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
75 /* Our parent Gtk object type */
76 #define PARENT_TYPE G_TYPE_OBJECT
78 /* A pointer to our parent object class */
79 static int spi_error_code = 0;
80 static GdkPoint last_mouse_pos_static = {0, 0};
81 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
82 static unsigned int mouse_mask_state = 0;
83 static unsigned int mouse_button_mask =
84 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
85 static unsigned int key_modifier_mask =
86 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
87 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
89 static GQuark spi_dec_private_quark = 0;
90 static XModifierKeymap* xmkeymap = NULL;
92 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
96 SPI_DEVICE_TYPE_MOUSE,
97 SPI_DEVICE_TYPE_LAST_DEFINED
98 } SpiDeviceTypeCategory;
101 guint ref_count : 30;
102 guint pending_add : 1;
103 guint pending_remove : 1;
105 Accessibility_ControllerEventMask mod_mask;
106 dbus_uint32_t key_val; /* KeyCode */
107 } DEControllerGrabMask;
112 SpiDeviceTypeCategory type;
114 } DEControllerListener;
117 DEControllerListener listener;
120 Accessibility_ControllerEventMask mask;
121 Accessibility_EventListenerMode *mode;
122 } DEControllerKeyListener;
125 unsigned int last_press_keycode;
126 unsigned int last_release_keycode;
127 struct timeval last_press_time;
128 struct timeval last_release_time;
130 int xkb_major_extension_opcode;
131 int xkb_base_event_code;
132 int xkb_base_error_code;
133 unsigned int xkb_latch_mask;
134 unsigned int pending_xkb_mod_relatch_mask;
136 KeyCode reserved_keycode;
137 KeySym reserved_keysym;
138 guint reserved_reset_timeout;
139 } DEControllerPrivateData;
141 static void spi_controller_register_with_devices (SpiDEController *controller);
142 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
143 Accessibility_DeviceEvent *recv);
144 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
145 DEControllerListener *l);
146 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
147 const XEvent *event);
148 static void spi_controller_deregister_device_listener (SpiDEController *controller,
149 DEControllerListener *listener);
150 static void spi_deregister_controller_key_listener (SpiDEController *controller,
151 DEControllerKeyListener *key_listener);
152 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
153 const Accessibility_DeviceEvent *event);
155 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
156 const Accessibility_DeviceEvent *event);
157 static gboolean spi_clear_error_state (void);
158 static gboolean spi_dec_poll_mouse_moved (gpointer data);
159 static gboolean spi_dec_poll_mouse_moving (gpointer data);
160 static gboolean spi_dec_poll_mouse_idle (gpointer data);
162 #define spi_get_display() GDK_DISPLAY()
164 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
166 /* Private methods */
168 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
170 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
174 dbus_error_init (&error);
175 dbus_bus_add_match (bus, match, &error);
177 return !dbus_error_is_set (&error);
183 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
185 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
189 dbus_error_init (&error);
190 dbus_bus_remove_match (bus, match, &error);
192 return !dbus_error_is_set (&error);
198 keysym_mod_mask (KeySym keysym, KeyCode keycode)
200 /* we really should use XKB and look directly at the keymap */
201 /* this is very inelegant */
202 Display *display = spi_get_display ();
203 unsigned int mods_rtn = 0;
204 unsigned int retval = 0;
207 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
208 (sym_rtn == keysym)) {
211 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
212 (sym_rtn == keysym)) {
215 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
216 (sym_rtn == keysym)) {
219 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
220 (sym_rtn == keysym)) {
223 else if (XkbLookupKeySym (display, keycode,
224 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
225 (sym_rtn == keysym)) {
226 retval = (Mod2Mask | ShiftMask);
228 else if (XkbLookupKeySym (display, keycode,
229 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
230 (sym_rtn == keysym)) {
231 retval = (Mod3Mask | ShiftMask);
233 else if (XkbLookupKeySym (display, keycode,
234 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
235 (sym_rtn == keysym)) {
236 retval = (Mod4Mask | ShiftMask);
244 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
247 Display *dpy = spi_get_display ();
249 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
251 fprintf (stderr, "ERROR getting map\n");
255 if (desc && desc->map)
257 gint offset = desc->map->key_sym_map[keycode].offset;
258 desc->map->syms[offset] = keysym;
262 fprintf (stderr, "Error changing key map: empty server structure\n");
264 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
266 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
267 * would be far preferable.
268 * HOWEVER it does not seem to work using XFree 4.3.
270 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
273 XkbFreeKeyboard (desc, 0, TRUE);
282 spi_dec_reset_reserved (gpointer data)
284 DEControllerPrivateData *priv = data;
285 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
286 priv->reserved_reset_timeout = 0;
291 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
294 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
297 DEControllerPrivateData *priv = (DEControllerPrivateData *)
298 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
299 /* if there's no keycode available, fix it */
300 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
302 keycode = priv->reserved_keycode;
304 * queue a timer to restore the old keycode. Ugly, but required
305 * due to races / asynchronous X delivery.
306 * Long-term fix is to extend the X keymap here instead of replace entries.
308 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
314 *modmask = keysym_mod_mask (keysym, keycode);
318 static DEControllerGrabMask *
319 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
321 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
323 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
325 clone->ref_count = 1;
326 clone->pending_add = TRUE;
327 clone->pending_remove = FALSE;
333 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
339 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
341 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
342 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
350 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
355 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
357 DEControllerPrivateData *priv =
358 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
360 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
361 priv->xkb_latch_mask);
363 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
367 spi_dec_clear_unlatch_pending (SpiDEController *controller)
369 DEControllerPrivateData *priv =
370 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
371 priv->xkb_latch_mask = 0;
374 static void emit(SpiDEController *controller, const char *name, int first_type, ...)
378 va_start(arg, first_type);
379 spi_dbus_emit_valist(controller->bus, SPI_DBUS_PATH_DEC, SPI_DBUS_INTERFACE_DEC, name, first_type, arg);
384 spi_dec_button_update_and_emit (SpiDEController *controller,
387 Accessibility_DeviceEvent mouse_e;
388 gchar event_detail[24];
389 gboolean is_consumed = FALSE;
391 if ((mask_return & mouse_button_mask) !=
392 (mouse_mask_state & mouse_button_mask))
394 int button_number = 0;
395 gboolean is_down = False;
397 if (!(mask_return & Button1Mask) &&
398 (mouse_mask_state & Button1Mask))
400 mouse_mask_state &= ~Button1Mask;
403 else if ((mask_return & Button1Mask) &&
404 !(mouse_mask_state & Button1Mask))
406 mouse_mask_state |= Button1Mask;
410 else if (!(mask_return & Button2Mask) &&
411 (mouse_mask_state & Button2Mask))
413 mouse_mask_state &= ~Button2Mask;
416 else if ((mask_return & Button2Mask) &&
417 !(mouse_mask_state & Button2Mask))
419 mouse_mask_state |= Button2Mask;
423 else if (!(mask_return & Button3Mask) &&
424 (mouse_mask_state & Button3Mask))
426 mouse_mask_state &= ~Button3Mask;
429 else if ((mask_return & Button3Mask) &&
430 !(mouse_mask_state & Button3Mask))
432 mouse_mask_state |= Button3Mask;
436 else if (!(mask_return & Button4Mask) &&
437 (mouse_mask_state & Button4Mask))
439 mouse_mask_state &= ~Button4Mask;
442 else if ((mask_return & Button4Mask) &&
443 !(mouse_mask_state & Button4Mask))
445 mouse_mask_state |= Button4Mask;
449 else if (!(mask_return & Button5Mask) &&
450 (mouse_mask_state & Button5Mask))
452 mouse_mask_state &= ~Button5Mask;
455 else if ((mask_return & Button5Mask) &&
456 !(mouse_mask_state & Button5Mask))
458 mouse_mask_state |= Button5Mask;
464 fprintf (stderr, "Button %d %s\n",
465 button_number, (is_down) ? "Pressed" : "Released");
467 snprintf (event_detail, 22, "%d%c", button_number,
468 (is_down) ? 'p' : 'r');
469 /* TODO: FIXME distinguish between physical and
472 mouse_e.type = (is_down) ?
473 Accessibility_BUTTON_PRESSED_EVENT :
474 Accessibility_BUTTON_RELEASED_EVENT;
475 mouse_e.id = button_number;
476 mouse_e.hw_code = button_number;
477 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
478 mouse_e.timestamp = 0;
479 mouse_e.event_string = "";
480 mouse_e.is_text = FALSE;
482 spi_controller_notify_mouselisteners (controller,
486 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
487 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, x, y);
490 spi_dec_set_unlatch_pending (controller, mask_return);
502 spi_dec_mouse_check (SpiDEController *controller,
503 int *x, int *y, gboolean *moved)
505 int win_x_return,win_y_return;
506 unsigned int mask_return;
507 Window root_return, child_return;
508 Display *display = spi_get_display ();
511 XQueryPointer(display, DefaultRootWindow (display),
512 &root_return, &child_return,
514 &win_x_return, &win_y_return, &mask_return);
516 * Since many clients grab the pointer, and X goes an automatic
517 * pointer grab on mouse-down, we often must detect mouse button events
518 * by polling rather than via a button grab.
519 * The while loop (rather than if) is used since it's possible that
520 * multiple buttons have changed state since we last checked.
522 if (mask_return != mouse_mask_state)
524 while (spi_dec_button_update_and_emit (controller, mask_return));
527 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
529 // TODO: combine these two signals?
530 dbus_uint32_t ix = *x, iy = *y;
531 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "abs", NULL, ix, iy);
532 ix -= last_mouse_pos->x;
533 iy -= last_mouse_pos->y;
534 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "rel", NULL, ix, iy);
535 last_mouse_pos->x = *x;
536 last_mouse_pos->y = *y;
548 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
551 dbus_uint32_t d1, d2;
554 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
555 prev_mask, current_mask);
558 /* set bits for the virtual modifiers like NUMLOCK */
559 if (prev_mask & _numlock_physical_mask)
560 prev_mask |= SPI_KEYMASK_NUMLOCK;
561 if (current_mask & _numlock_physical_mask)
562 current_mask |= SPI_KEYMASK_NUMLOCK;
564 d1 = prev_mask & key_modifier_mask;
565 d2 = current_mask & key_modifier_mask;
566 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "modifiers", NULL, d1, d2);
570 spi_dec_poll_mouse_moved (gpointer data)
572 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
577 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
579 if ((mask_return & key_modifier_mask) !=
580 (mouse_mask_state & key_modifier_mask))
582 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
583 mouse_mask_state = mask_return;
590 spi_dec_poll_mouse_idle (gpointer data)
592 if (! spi_dec_poll_mouse_moved (data))
596 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
602 spi_dec_poll_mouse_moving (gpointer data)
604 if (spi_dec_poll_mouse_moved (data))
608 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
613 #ifdef WE_NEED_UGRAB_MOUSE
615 spi_dec_ungrab_mouse (gpointer data)
617 Display *display = spi_get_display ();
620 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
621 XDefaultRootWindow (spi_get_display ()));
628 spi_dec_init_mouse_listener (SpiDEController *dec)
631 Display *display = spi_get_display ();
633 g_timeout_add (100, spi_dec_poll_mouse_idle, dec);
638 if (XGrabButton (display, AnyButton, AnyModifier,
639 gdk_x11_get_default_root_xwindow (),
640 True, ButtonPressMask | ButtonReleaseMask,
641 GrabModeSync, GrabModeAsync, None, None) != Success) {
643 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
647 XSync (display, False);
649 fprintf (stderr, "mouse buttons grabbed\n");
656 * Eventually we can use this to make the marshalling of mask types
657 * more sane, but for now we just use this to detect
658 * the use of 'virtual' masks such as numlock and convert them to
659 * system-specific mask values (i.e. ModMask).
662 static Accessibility_ControllerEventMask
663 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
665 Accessibility_ControllerEventMask tmp_mask;
666 gboolean has_numlock;
668 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
672 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
673 tmp_mask |= _numlock_physical_mask;
679 static DEControllerKeyListener *
680 spi_dec_key_listener_new (const char *bus_name,
683 const Accessibility_ControllerEventMask mask,
684 const dbus_uint32_t types,
685 const Accessibility_EventListenerMode *mode)
687 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
688 key_listener->listener.bus_name = g_strdup(bus_name);
689 key_listener->listener.path = g_strdup(path);
690 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
691 key_listener->keys = keys;
692 key_listener->mask = spi_dec_translate_mask (mask);
693 key_listener->listener.types = types;
696 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
697 memcpy(key_listener->mode, mode, sizeof(*mode));
700 key_listener->mode = NULL;
703 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
704 (unsigned int) key_listener->mask,
705 (int) (mode ? mode->global : 0),
706 (void *) key_listener->keys,
707 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
713 static DEControllerListener *
714 spi_dec_listener_new (const char *bus_name,
718 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
719 listener->bus_name = g_strdup(bus_name);
720 listener->path = g_strdup(path);
721 listener->type = SPI_DEVICE_TYPE_MOUSE;
722 listener->types = types;
726 static DEControllerListener *
727 spi_listener_clone (DEControllerListener *listener)
729 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
730 clone->bus_name = g_strdup (listener->bus_name);
731 clone->path = g_strdup (listener->path);
732 clone->type = listener->type;
733 clone->types = listener->types;
737 static GSList *keylist_clone (GSList *s)
742 for (l = s; l; l = g_slist_next(l))
744 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
747 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
748 kd->keycode = kds->keycode;
749 kd->keysym = kds->keysym;
750 kd->keystring = g_strdup(kds->keystring);
751 d = g_slist_append(d, kd);
757 static DEControllerKeyListener *
758 spi_key_listener_clone (DEControllerKeyListener *key_listener)
760 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
761 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
762 clone->listener.path = g_strdup (key_listener->listener.path);
763 clone->listener.type = SPI_DEVICE_TYPE_KBD;
764 clone->keys = keylist_clone (key_listener->keys);
765 clone->mask = key_listener->mask;
766 clone->listener.types = key_listener->listener.types;
767 if (key_listener->mode)
769 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
770 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
777 static void keylist_free(GSList *keys)
781 for (l = keys; l; l = g_slist_next(l))
783 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
784 g_free(kd->keystring);
791 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
793 keylist_free(key_listener->keys);
794 if (key_listener->mode) g_free(key_listener->mode);
795 g_free (key_listener);
799 spi_key_listener_clone_free (DEControllerKeyListener *clone)
801 spi_key_listener_data_free (clone);
805 spi_listener_clone_free (DEControllerListener *clone)
807 g_free (clone->path);
808 g_free (clone->bus_name);
813 spi_dec_listener_free (DEControllerListener *listener)
815 g_free (listener->bus_name);
816 g_free (listener->path);
817 if (listener->type == SPI_DEVICE_TYPE_KBD)
818 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
822 _register_keygrab (SpiDEController *controller,
823 DEControllerGrabMask *grab_mask)
827 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
828 spi_grab_mask_compare_values);
831 DEControllerGrabMask *cur_mask = l->data;
833 cur_mask->ref_count++;
834 if (cur_mask->pending_remove)
836 cur_mask->pending_remove = FALSE;
841 controller->keygrabs_list =
842 g_list_prepend (controller->keygrabs_list,
843 spi_grab_mask_clone (grab_mask));
848 _deregister_keygrab (SpiDEController *controller,
849 DEControllerGrabMask *grab_mask)
853 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
854 spi_grab_mask_compare_values);
858 DEControllerGrabMask *cur_mask = l->data;
860 cur_mask->ref_count--;
861 if (cur_mask->ref_count <= 0)
863 cur_mask->pending_remove = TRUE;
869 handle_keygrab (SpiDEController *controller,
870 DEControllerKeyListener *key_listener,
871 void (*process_cb) (SpiDEController *controller,
872 DEControllerGrabMask *grab_mask))
874 DEControllerGrabMask grab_mask = { 0 };
876 grab_mask.mod_mask = key_listener->mask;
877 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
879 grab_mask.key_val = AnyKey;
881 fprintf (stderr, "AnyKey grab!");
883 process_cb (controller, &grab_mask);
889 for (l = key_listener->keys; l; l = g_slist_next(l))
891 Accessibility_KeyDefinition *keydef = l->data;
892 long int key_val = keydef->keysym;
893 /* X Grabs require keycodes, not keysyms */
894 if (keydef->keystring && keydef->keystring[0])
896 key_val = XStringToKeysym(keydef->keystring);
900 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
904 key_val = keydef->keycode;
906 grab_mask.key_val = key_val;
907 process_cb (controller, &grab_mask);
913 spi_controller_register_global_keygrabs (SpiDEController *controller,
914 DEControllerKeyListener *key_listener)
916 handle_keygrab (controller, key_listener, _register_keygrab);
917 if (controller->xevie_display == NULL)
918 return spi_controller_update_key_grabs (controller, NULL);
924 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
925 DEControllerKeyListener *key_listener)
927 handle_keygrab (controller, key_listener, _deregister_keygrab);
928 if (controller->xevie_display == NULL)
929 spi_controller_update_key_grabs (controller, NULL);
933 spi_controller_register_device_listener (SpiDEController *controller,
934 DEControllerListener *listener)
936 DEControllerKeyListener *key_listener;
938 switch (listener->type) {
939 case SPI_DEVICE_TYPE_KBD:
940 key_listener = (DEControllerKeyListener *) listener;
942 controller->key_listeners = g_list_prepend (controller->key_listeners,
944 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
945 if (key_listener->mode->global)
947 return spi_controller_register_global_keygrabs (controller, key_listener);
952 case SPI_DEVICE_TYPE_MOUSE:
953 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
954 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
963 Accessibility_DeviceEventListener_notifyEvent(SpiDEController *controller,
964 SpiRegistry *registry,
965 DEControllerListener *listener,
966 const Accessibility_DeviceEvent *key_event)
968 DBusMessage *message = dbus_message_new_method_call(listener->bus_name, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
970 dbus_bool_t consumed = FALSE;
972 dbus_error_init(&error);
973 if (spi_dbus_marshal_deviceEvent(message, key_event))
975 // TODO: Evaluate performance: perhaps rework this whole architecture
976 // to avoid blocking calls
977 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
981 dbus_error_init(&error);
982 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
983 dbus_message_unref(reply);
986 dbus_message_unref(message);
991 spi_controller_notify_mouselisteners (SpiDEController *controller,
992 const Accessibility_DeviceEvent *event)
995 GSList *notify = NULL, *l2;
996 GList **listeners = &controller->mouse_listeners;
997 gboolean is_consumed;
998 #ifdef SPI_KEYEVENT_DEBUG
999 gboolean found = FALSE;
1006 for (l = *listeners; l; l = l->next)
1008 DEControllerListener *listener = l->data;
1010 if (spi_eventtype_seq_contains_event (listener->types, event))
1012 /* we clone (don't dup) the listener, to avoid refcount inc. */
1013 notify = g_slist_prepend (notify,
1014 spi_listener_clone (listener));
1015 #ifdef SPI_KEYEVENT_DEBUG
1021 #ifdef SPI_KEYEVENT_DEBUG
1024 g_print ("no match for event\n");
1028 is_consumed = FALSE;
1029 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1031 DEControllerListener *listener = l2->data;
1033 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, listener, event);
1035 spi_listener_clone_free ((DEControllerListener *) l2->data);
1038 for (; l2; l2 = l2->next)
1040 DEControllerListener *listener = l2->data;
1041 spi_listener_clone_free (listener);
1042 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1045 g_slist_free (notify);
1048 if (is_consumed) g_message ("consumed\n");
1054 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1057 Accessibility_DeviceEvent mouse_e;
1058 gchar event_detail[24];
1059 gboolean is_consumed = FALSE;
1060 gboolean xkb_mod_unlatch_occurred;
1061 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1062 dbus_uint32_t ix, iy;
1064 int button = xbutton_event->button;
1066 unsigned int mouse_button_state = xbutton_event->state;
1071 mouse_button_state |= Button1Mask;
1074 mouse_button_state |= Button2Mask;
1077 mouse_button_state |= Button3Mask;
1080 mouse_button_state |= Button4Mask;
1083 mouse_button_state |= Button5Mask;
1087 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1088 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1091 fprintf (stderr, "mouse button %d %s (%x)\n",
1092 xbutton_event->button,
1093 (xevent->type == ButtonPress) ? "Press" : "Release",
1094 mouse_button_state);
1096 snprintf (event_detail, 22, "%d%c", button,
1097 (xevent->type == ButtonPress) ? 'p' : 'r');
1099 /* TODO: FIXME distinguish between physical and logical buttons */
1100 mouse_e.type = (xevent->type == ButtonPress) ?
1101 Accessibility_BUTTON_PRESSED_EVENT :
1102 Accessibility_BUTTON_RELEASED_EVENT;
1103 mouse_e.id = button;
1104 mouse_e.hw_code = button;
1105 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1106 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1107 mouse_e.event_string = "";
1108 mouse_e.is_text = FALSE;
1109 if ((mouse_button_state & mouse_button_mask) !=
1110 (mouse_mask_state & mouse_button_mask))
1112 if ((mouse_mask_state & key_modifier_mask) !=
1113 (mouse_button_state & key_modifier_mask))
1114 spi_dec_emit_modifier_event (controller,
1115 mouse_mask_state, mouse_button_state);
1116 mouse_mask_state = mouse_button_state;
1118 spi_controller_notify_mouselisteners (controller, &mouse_e);
1119 ix = last_mouse_pos->x;
1120 iy = last_mouse_pos->y;
1121 /* TODO - Work out which part of the spec this emit is fulfilling */
1122 //emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, ix, iy);
1125 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1126 xevent->type == ButtonRelease);
1128 /* if client wants to consume this event, and XKB latch state was
1129 * unset by this button event, we reset it
1131 if (is_consumed && xkb_mod_unlatch_occurred)
1132 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1134 XAllowEvents (spi_get_display (),
1135 (is_consumed) ? SyncPointer : ReplayPointer,
1139 static GdkFilterReturn
1140 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1142 XEvent *xevent = gdk_xevent;
1143 SpiDEController *controller;
1144 DEControllerPrivateData *priv;
1145 Display *display = spi_get_display ();
1146 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1147 priv = (DEControllerPrivateData *)
1148 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1150 if (xevent->type == MappingNotify)
1153 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1155 if (controller->xevie_display == NULL)
1157 gboolean is_consumed;
1160 spi_device_event_controller_forward_key_event (controller, xevent);
1167 n_events = XPending (display);
1169 #ifdef SPI_KEYEVENT_DEBUG
1170 g_print ("Number of events pending: %d\n", n_events);
1172 for (i = 0; i < n_events; i++)
1174 XNextEvent (display, &next_event);
1175 if (next_event.type != KeyPress &&
1176 next_event.type != KeyRelease)
1177 g_warning ("Unexpected event type %d in queue", next_event.type);
1180 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1182 XUngrabKeyboard (display, CurrentTime);
1186 if (xevent->type == KeyPress)
1187 wait_for_release_event (xevent, controller);
1188 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1192 return GDK_FILTER_CONTINUE;
1194 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1196 spi_device_event_controller_forward_mouse_event (controller, xevent);
1198 if (xevent->type == priv->xkb_base_event_code)
1200 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1201 /* ugly but probably necessary...*/
1202 XSynchronize (display, TRUE);
1204 if (xkb_ev->xkb_type == XkbStateNotify)
1206 XkbStateNotifyEvent *xkb_snev =
1207 (XkbStateNotifyEvent *) xkb_ev;
1208 /* check the mouse, to catch mouse events grabbed by
1209 * another client; in case we should revert this XKB delatch
1211 if (!priv->pending_xkb_mod_relatch_mask)
1215 spi_dec_mouse_check (controller, &x, &y, &moved);
1217 /* we check again, since the previous call may have
1218 changed this flag */
1219 if (priv->pending_xkb_mod_relatch_mask)
1221 unsigned int feedback_mask;
1222 #ifdef SPI_XKB_DEBUG
1223 fprintf (stderr, "relatching %x\n",
1224 priv->pending_xkb_mod_relatch_mask);
1226 /* temporarily turn off the latch bell, if it's on */
1227 XkbGetControls (display,
1228 XkbAccessXFeedbackMask,
1230 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1231 if (feedback_mask & XkbAX_StickyKeysFBMask)
1233 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1235 priv->xkb_desc->ctrls->ax_options
1236 &= ~(XkbAX_StickyKeysFBMask);
1237 XkbChangeControls (display, priv->xkb_desc, &changes);
1239 /* TODO: account for lock as well as latch */
1240 XkbLatchModifiers (display,
1242 priv->pending_xkb_mod_relatch_mask,
1243 priv->pending_xkb_mod_relatch_mask);
1244 if (feedback_mask & XkbAX_StickyKeysFBMask)
1246 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1248 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1249 XkbChangeControls (display, priv->xkb_desc, &changes);
1251 #ifdef SPI_XKB_DEBUG
1252 fprintf (stderr, "relatched %x\n",
1253 priv->pending_xkb_mod_relatch_mask);
1255 priv->pending_xkb_mod_relatch_mask = 0;
1259 priv->xkb_latch_mask = xkb_snev->latched_mods;
1262 XSynchronize (display, FALSE);
1265 return GDK_FILTER_CONTINUE;
1269 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1271 if (error->error_code == BadAccess)
1273 g_message ("Could not complete key grab: grab already in use.\n");
1274 spi_error_code = BadAccess;
1279 return (*x_default_error_handler) (display, error);
1284 spi_controller_register_with_devices (SpiDEController *controller)
1286 DEControllerPrivateData *priv;
1287 int event_base, error_base, major_version, minor_version;
1289 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1290 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1292 XTestGrabControl (spi_get_display (), True);
1295 /* calls to device-specific implementations and routines go here */
1296 /* register with: keyboard hardware code handler */
1297 /* register with: (translated) keystroke handler */
1299 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1300 &priv->xkb_major_extension_opcode,
1301 &priv->xkb_base_event_code,
1302 &priv->xkb_base_error_code, NULL, NULL);
1306 guint64 reserved = 0;
1307 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1308 XkbSelectEvents (spi_get_display (),
1310 XkbStateNotifyMask, XkbStateNotifyMask);
1311 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1313 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1315 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1317 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1319 /* don't use this one if there's a grab client! */
1320 gdk_error_trap_push ();
1321 XGrabKey (spi_get_display (), i, 0,
1322 gdk_x11_get_default_root_xwindow (),
1324 GrabModeSync, GrabModeSync);
1325 XSync (spi_get_display (), TRUE);
1326 XUngrabKey (spi_get_display (), i, 0,
1327 gdk_x11_get_default_root_xwindow ());
1328 if (!gdk_error_trap_pop ())
1338 priv->reserved_keycode = reserved;
1339 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1343 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1344 priv->reserved_keysym = XK_numbersign;
1346 #ifdef SPI_RESERVED_DEBUG
1348 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1349 fprintf (stderr, "%x\n", sym);
1350 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1352 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1357 gdk_window_add_filter (NULL, global_filter_fn, controller);
1359 gdk_window_set_events (gdk_get_default_root_window (),
1360 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1362 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1366 spi_key_set_contains_key (GSList *key_set,
1367 const Accessibility_DeviceEvent *key_event)
1375 g_print ("null key set!");
1379 len = g_slist_length (key_set);
1381 if (len == 0) /* special case, means "all keys/any key" */
1384 g_print ("anykey\n");
1389 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1391 Accessibility_KeyDefinition *kd = l->data;
1392 #ifdef SPI_KEYEVENT_DEBUG
1393 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1397 (int) key_event->id,
1398 (int) key_event->hw_code,
1399 key_event->event_string);
1401 if (kd->keysym == (dbus_uint32_t) key_event->id)
1405 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1409 if (key_event->event_string && key_event->event_string[0] &&
1410 !strcmp (kd->keystring, key_event->event_string))
1420 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1421 const Accessibility_DeviceEvent *event)
1423 if (types == 0) /* special case, means "all events/any event" */
1428 return (types & (1 << event->type));
1432 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1433 DEControllerKeyListener *listener,
1434 dbus_bool_t is_system_global)
1436 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1437 spi_key_set_contains_key (listener->keys, key_event) &&
1438 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1439 (is_system_global == listener->mode->global))
1450 spi_controller_notify_keylisteners (SpiDEController *controller,
1451 Accessibility_DeviceEvent *key_event,
1452 dbus_bool_t is_system_global)
1455 GSList *notify = NULL, *l2;
1456 GList **key_listeners = &controller->key_listeners;
1457 gboolean is_consumed;
1464 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1465 if (key_event->modifiers & _numlock_physical_mask)
1466 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1468 for (l = *key_listeners; l; l = l->next)
1470 DEControllerKeyListener *key_listener = l->data;
1472 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1474 /* we clone (don't dup) the listener, to avoid refcount inc. */
1475 notify = g_slist_prepend (notify,
1476 spi_key_listener_clone (key_listener));
1480 #ifdef SPI_KEYEVENT_DEBUG
1483 g_print ("no match for event\n");
1487 is_consumed = FALSE;
1488 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1490 DEControllerKeyListener *key_listener = l2->data;
1492 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1493 key_listener->mode->preemptive;
1495 spi_key_listener_clone_free (key_listener);
1498 for (; l2; l2 = l2->next)
1500 DEControllerKeyListener *key_listener = l2->data;
1501 spi_key_listener_clone_free (key_listener);
1502 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1505 g_slist_free (notify);
1508 if (is_consumed) g_message ("consumed\n");
1514 spi_clear_error_state (void)
1516 gboolean retval = spi_error_code != 0;
1521 static Accessibility_DeviceEvent
1522 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1524 Accessibility_DeviceEvent key_event;
1526 const int cbuf_bytes = 20;
1530 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1531 key_event.id = (dbus_int32_t)(keysym);
1532 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1533 if (((XEvent *) x_key_event)->type == KeyPress)
1535 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1539 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1541 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1542 key_event.is_text = FALSE;
1546 key_event.event_string = g_strdup ("space");
1549 key_event.event_string = g_strdup ("Tab");
1552 key_event.event_string = g_strdup ("Backspace");
1555 key_event.event_string = g_strdup ("Return");
1558 key_event.event_string = g_strdup ("Home");
1561 key_event.event_string = g_strdup ("Page_Down");
1564 key_event.event_string = g_strdup ("Page_Up");
1567 key_event.event_string = g_strdup ("F1");
1570 key_event.event_string = g_strdup ("F2");
1573 key_event.event_string = g_strdup ("F3");
1576 key_event.event_string = g_strdup ("F4");
1579 key_event.event_string = g_strdup ("F5");
1582 key_event.event_string = g_strdup ("F6");
1585 key_event.event_string = g_strdup ("F7");
1588 key_event.event_string = g_strdup ("F8");
1591 key_event.event_string = g_strdup ("F9");
1594 key_event.event_string = g_strdup ("F10");
1597 key_event.event_string = g_strdup ("F11");
1600 key_event.event_string = g_strdup ("F12");
1603 key_event.event_string = g_strdup ("End");
1606 key_event.event_string = g_strdup ("Escape");
1609 key_event.event_string = g_strdup ("Up");
1612 key_event.event_string = g_strdup ("Down");
1615 key_event.event_string = g_strdup ("Left");
1618 key_event.event_string = g_strdup ("Right");
1624 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1625 key_event.event_string = g_strdup (cbuf);
1626 c = keysym2ucs (keysym);
1627 if (c > 0 && !g_unichar_iscntrl (c))
1629 key_event.is_text = TRUE;
1630 /* incorrect for some composed chars? */
1635 key_event.event_string = g_strdup ("");
1639 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1640 #ifdef SPI_KEYEVENT_DEBUG
1642 char *pressed_str = "pressed";
1643 char *released_str = "released";
1646 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1647 state_ptr = pressed_str;
1649 state_ptr = released_str;
1652 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1653 (unsigned long) keysym,
1655 keysym ? (int) keysym : '*',
1656 (int) x_key_event->state,
1657 key_event.event_string,
1658 key_event.event_string[0],
1659 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1663 fprintf (stderr, "%s%c\n",
1664 (x_key_event->state & Mod1Mask)?"Alt-":"",
1665 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1666 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1667 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1668 #endif /* SPI_DEBUG */
1673 spi_controller_update_key_grabs (SpiDEController *controller,
1674 Accessibility_DeviceEvent *recv)
1677 gboolean update_failed = FALSE;
1678 KeyCode keycode = 0;
1680 g_return_val_if_fail (controller != NULL, FALSE);
1683 * masks known to work with default RH 7.1+:
1684 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1685 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1686 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1687 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1689 * ControlMask grabs are broken, must be in use already
1692 keycode = keycode_for_keysym (controller, recv->id, NULL);
1693 for (l = controller->keygrabs_list; l; l = next)
1696 gboolean re_issue_grab;
1697 DEControllerGrabMask *grab_mask = l->data;
1701 re_issue_grab = recv &&
1702 (recv->modifiers & grab_mask->mod_mask) &&
1703 (grab_mask->key_val == keycode);
1706 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1707 (long int) grab_mask->key_val,
1708 (long int) grab_mask->mod_mask,
1709 grab_mask->pending_add ? '+' : '.',
1710 grab_mask->pending_remove ? '-' : '.',
1711 re_issue_grab ? "re-issue": "");
1716 if (grab_mask->pending_add && grab_mask->pending_remove)
1720 else if (grab_mask->pending_remove)
1723 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1725 XUngrabKey (spi_get_display (),
1727 grab_mask->mod_mask,
1728 gdk_x11_get_default_root_xwindow ());
1732 else if (grab_mask->pending_add || re_issue_grab)
1736 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1738 XGrabKey (spi_get_display (),
1740 grab_mask->mod_mask,
1741 gdk_x11_get_default_root_xwindow (),
1745 XSync (spi_get_display (), False);
1746 update_failed = spi_clear_error_state ();
1747 if (update_failed) {
1748 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1753 grab_mask->pending_add = FALSE;
1754 grab_mask->pending_remove = FALSE;
1758 g_assert (grab_mask->ref_count <= 0);
1760 controller->keygrabs_list = g_list_delete_link (
1761 controller->keygrabs_list, l);
1763 spi_grab_mask_free (grab_mask);
1768 return ! update_failed;
1772 * Implemented GObject::finalize
1775 spi_device_event_controller_object_finalize (GObject *object)
1777 SpiDEController *controller;
1778 DEControllerPrivateData *private;
1779 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1780 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1782 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1784 /* disconnect any special listeners, get rid of outstanding keygrabs */
1785 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1788 if (controller->xevie_display != NULL)
1790 XevieEnd(controller->xevie_display);
1791 #ifdef SPI_KEYEVENT_DEBUG
1792 printf("XevieEnd(dpy) finished \n");
1797 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1798 if (private->xkb_desc)
1799 XkbFreeKeyboard (private->xkb_desc, 0, True);
1801 parent_class->finalize (object);
1805 * DBus Accessibility::DEController::registerKeystrokeListener
1806 * method implementation
1808 static DBusMessage *
1809 impl_register_keystroke_listener (DBusConnection *bus,
1810 DBusMessage *message,
1813 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1814 DEControllerKeyListener *dec_listener;
1815 DBusMessageIter iter, iter_array;
1817 GSList *keys = NULL;
1818 dbus_int32_t mask, type;
1819 Accessibility_EventListenerMode *mode;
1824 dbus_message_iter_init(message, &iter);
1825 // TODO: verify type signature
1826 dbus_message_iter_get_basic(&iter, &path);
1827 dbus_message_iter_next(&iter);
1828 dbus_message_iter_recurse(&iter, &iter_array);
1829 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1831 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1832 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))
1836 kd->keystring = g_strdup (keystring);
1837 keys = g_slist_append(keys, kd);
1839 dbus_message_iter_next(&iter);
1840 dbus_message_iter_get_basic(&iter, &mask);
1841 dbus_message_iter_next(&iter);
1842 dbus_message_iter_get_basic(&iter, &type);
1843 dbus_message_iter_next(&iter);
1844 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1847 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);
1850 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1851 dbus_message_get_sender(message), path, (unsigned long) mask);
1853 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1854 ret = spi_controller_register_device_listener (
1855 controller, (DEControllerListener *) dec_listener);
1856 reply = dbus_message_new_method_return (message);
1859 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1865 * DBus Accessibility::DEController::registerDeviceEventListener
1866 * method implementation
1868 static DBusMessage *
1869 impl_register_device_listener (DBusConnection *bus,
1870 DBusMessage *message,
1873 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1874 DEControllerListener *dec_listener;
1877 dbus_int32_t event_types;
1881 dbus_error_init(&error);
1882 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1884 return droute_invalid_arguments_error (message);
1886 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1887 ret = spi_controller_register_device_listener (
1888 controller, (DEControllerListener *) dec_listener);
1889 reply = dbus_message_new_method_return (message);
1892 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1898 DBusConnection *bus;
1899 DEControllerListener *listener;
1900 } RemoveListenerClosure;
1902 static SpiReEntrantContinue
1903 remove_listener_cb (GList * const *list,
1906 DEControllerListener *listener = (*list)->data;
1907 RemoveListenerClosure *ctx = user_data;
1909 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1910 !strcmp(ctx->listener->path, listener->path))
1912 spi_re_entrant_list_delete_link (list);
1913 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1914 spi_dec_listener_free (listener);
1917 return SPI_RE_ENTRANT_CONTINUE;
1920 static SpiReEntrantContinue
1921 copy_key_listener_cb (GList * const *list,
1924 DEControllerKeyListener *key_listener = (*list)->data;
1925 RemoveListenerClosure *ctx = user_data;
1927 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1928 !strcmp(ctx->listener->path, key_listener->listener.path))
1930 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1931 DEControllerKeyListener *ctx_key_listener =
1932 (DEControllerKeyListener *) ctx->listener;
1933 keylist_free (ctx_key_listener->keys);
1934 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1937 return SPI_RE_ENTRANT_CONTINUE;
1941 spi_controller_deregister_device_listener (SpiDEController *controller,
1942 DEControllerListener *listener)
1944 RemoveListenerClosure ctx;
1946 ctx.bus = controller->bus;
1947 ctx.listener = listener;
1949 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1950 remove_listener_cb, &ctx);
1954 spi_deregister_controller_key_listener (SpiDEController *controller,
1955 DEControllerKeyListener *key_listener)
1957 RemoveListenerClosure ctx;
1959 ctx.bus = controller->bus;
1960 ctx.listener = (DEControllerListener *) key_listener;
1962 /* special case, copy keyset from existing controller list entry */
1963 if (g_slist_length(key_listener->keys) == 0)
1965 spi_re_entrant_list_foreach (&controller->key_listeners,
1966 copy_key_listener_cb, &ctx);
1969 spi_controller_deregister_global_keygrabs (controller, key_listener);
1971 spi_re_entrant_list_foreach (&controller->key_listeners,
1972 remove_listener_cb, &ctx);
1977 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1981 for (l = controller->mouse_listeners; l; l = tmp)
1983 DEControllerListener *listener = l->data;
1985 if (!strcmp (listener->bus_name, bus_name))
1987 spi_controller_deregister_device_listener (controller, listener);
1990 for (l = controller->key_listeners; l; l = tmp)
1992 DEControllerKeyListener *key_listener = l->data;
1994 if (!strcmp (key_listener->listener.bus_name, bus_name))
1996 spi_deregister_controller_key_listener (controller, key_listener);
2002 * DBus Accessibility::DEController::deregisterKeystrokeListener
2003 * method implementation
2005 static DBusMessage *
2006 impl_deregister_keystroke_listener (DBusConnection *bus,
2007 DBusMessage *message,
2010 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2011 DEControllerKeyListener *key_listener;
2012 DBusMessageIter iter, iter_array;
2014 GSList *keys = NULL;
2015 dbus_int32_t mask, type;
2018 dbus_message_iter_init(message, &iter);
2019 // TODO: verify type signature
2020 dbus_message_iter_get_basic(&iter, &path);
2021 dbus_message_iter_next(&iter);
2022 dbus_message_iter_recurse(&iter, &iter_array);
2023 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2025 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2028 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))
2032 kd->keystring = g_strdup (keystring);
2033 keys = g_slist_append(keys, kd);
2035 dbus_message_iter_next(&iter);
2036 dbus_message_iter_get_basic(&iter, &mask);
2037 dbus_message_iter_next(&iter);
2038 dbus_message_iter_get_basic(&iter, &type);
2039 dbus_message_iter_next(&iter);
2040 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2041 #ifdef SPI_DEREGISTER_DEBUG
2042 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2043 (void *) l, (unsigned long) mask->value);
2046 spi_deregister_controller_key_listener (controller, key_listener);
2048 spi_dec_listener_free ((DEControllerListener *) key_listener);
2049 reply = dbus_message_new_method_return (message);
2054 * DBus Accessibility::DEController::deregisterDeviceEventListener
2055 * method implementation
2057 static DBusMessage *
2058 impl_deregister_device_listener (DBusConnection *bus,
2059 DBusMessage *message,
2062 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2063 DEControllerListener *listener;
2066 dbus_int32_t event_types;
2069 dbus_error_init(&error);
2070 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2072 return droute_invalid_arguments_error (message);
2074 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2075 spi_controller_deregister_device_listener (
2076 controller, listener);
2077 reply = dbus_message_new_method_return (message);
2081 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2083 unsigned int retval = 0;
2084 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2085 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2087 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2088 retval = XkbGetSlowKeysDelay (spi_get_display (),
2089 XkbUseCoreKbd, &bounce_delay);
2091 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2093 Status s = XkbGetControls (spi_get_display (),
2094 XkbAllControlsMask, priv->xkb_desc);
2097 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2098 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2103 #ifdef SPI_XKB_DEBUG
2104 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2109 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2111 unsigned int retval = 0;
2112 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2113 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2115 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2116 retval = XkbGetBounceKeysDelay (spi_get_display (),
2117 XkbUseCoreKbd, &bounce_delay);
2119 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2121 Status s = XkbGetControls (spi_get_display (),
2122 XkbAllControlsMask, priv->xkb_desc);
2125 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2126 retval = priv->xkb_desc->ctrls->debounce_delay;
2131 #ifdef SPI_XKB_DEBUG
2132 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2138 dec_synth_keycode_press (SpiDEController *controller,
2139 unsigned int keycode)
2141 unsigned int time = CurrentTime;
2142 unsigned int bounce_delay;
2143 unsigned int elapsed_msec;
2145 DEControllerPrivateData *priv =
2146 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2147 spi_dec_private_quark);
2148 if (keycode == priv->last_release_keycode)
2150 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2153 gettimeofday (&tv, NULL);
2155 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2156 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2157 #ifdef SPI_XKB_DEBUG
2158 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2159 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2161 #ifdef THIS_IS_BROKEN
2162 if (elapsed_msec < bounce_delay)
2163 time = bounce_delay - elapsed_msec + 1;
2165 time = bounce_delay + 10;
2166 /* fudge for broken XTest */
2168 #ifdef SPI_XKB_DEBUG
2169 fprintf (stderr, "waiting %d ms\n", time);
2173 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2174 priv->last_press_keycode = keycode;
2175 XFlush (spi_get_display ());
2176 XSync (spi_get_display (), False);
2177 gettimeofday (&priv->last_press_time, NULL);
2182 dec_synth_keycode_release (SpiDEController *controller,
2183 unsigned int keycode)
2185 unsigned int time = CurrentTime;
2186 unsigned int slow_delay;
2187 unsigned int elapsed_msec;
2189 DEControllerPrivateData *priv =
2190 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2191 spi_dec_private_quark);
2192 if (keycode == priv->last_press_keycode)
2194 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2197 gettimeofday (&tv, NULL);
2199 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2200 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2201 #ifdef SPI_XKB_DEBUG
2202 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2203 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2205 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2206 if (elapsed_msec < slow_delay)
2207 time = slow_delay - elapsed_msec + 1;
2209 time = slow_delay + 10;
2210 /* our XTest seems broken, we have to add slop as above */
2212 #ifdef SPI_XKB_DEBUG
2213 fprintf (stderr, "waiting %d ms\n", time);
2217 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2218 priv->last_release_keycode = keycode;
2219 XSync (spi_get_display (), False);
2220 gettimeofday (&priv->last_release_time, NULL);
2225 dec_get_modifier_state (SpiDEController *controller)
2227 return mouse_mask_state;
2231 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2233 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2234 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2236 if (priv->have_xkb) {
2237 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2238 modifiers, modifiers);
2241 for (mod_index=0;mod_index<8;mod_index++)
2242 if (modifiers & (1<<mod_index))
2243 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2249 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2251 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2252 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2254 if (priv->have_xkb) {
2255 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2259 for (mod_index=0;mod_index<8;mod_index++)
2260 if (modifiers & (1<<mod_index))
2261 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2267 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2269 return ucs2keysym ((long) unichar);
2273 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2275 KeyCode key_synth_code;
2276 unsigned int modifiers, synth_mods, lock_mods;
2278 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2280 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2282 /* TODO: set the modifiers accordingly! */
2283 modifiers = dec_get_modifier_state (controller);
2284 /* side-effect; we may unset mousebutton modifiers here! */
2287 if (synth_mods != modifiers) {
2288 lock_mods = synth_mods & ~modifiers;
2289 dec_lock_modifiers (controller, lock_mods);
2291 dec_synth_keycode_press (controller, key_synth_code);
2292 dec_synth_keycode_release (controller, key_synth_code);
2294 if (synth_mods != modifiers)
2295 dec_unlock_modifiers (controller, lock_mods);
2301 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2303 /* probably we need to create and inject an XIM handler eventually. */
2304 /* for now, try to match the string to existing
2305 * keycode+modifier states.
2309 gunichar unichar = 0;
2311 gboolean retval = TRUE;
2314 maxlen = strlen (keystring) + 1;
2315 keysyms = g_new0 (KeySym, maxlen);
2316 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2321 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2323 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2328 mbytes = g_unichar_to_utf8 (unichar, bytes);
2329 bytes[mbytes] = '\0';
2331 fprintf (stderr, "[unichar %s]", bytes);
2333 keysym = dec_keysym_for_unichar (controller, unichar);
2334 if (keysym == NoSymbol) {
2336 fprintf (stderr, "no keysym for %s", bytes);
2341 keysyms[i++] = keysym;
2342 keystring = g_utf8_next_char (keystring);
2345 XSynchronize (spi_get_display (), TRUE);
2346 for (i = 0; keysyms[i]; ++i) {
2347 if (!dec_synth_keysym (controller, keysyms[i])) {
2349 fprintf (stderr, "could not synthesize %c\n",
2356 XSynchronize (spi_get_display (), FALSE);
2365 * DBus Accessibility::DEController::registerKeystrokeListener
2366 * method implementation
2368 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2370 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2372 dbus_int32_t keycode;
2374 dbus_uint32_t synth_type;
2377 DEControllerPrivateData *priv;
2380 dbus_error_init(&error);
2381 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2383 return droute_invalid_arguments_error (message);
2387 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2388 (long) keycode, (int) synth_type);
2390 /* TODO: hide/wrap/remove X dependency */
2393 * TODO: when initializing, query for XTest extension before using,
2394 * and fall back to XSendEvent() if XTest is not available.
2397 gdk_error_trap_push ();
2399 priv = (DEControllerPrivateData *)
2400 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2402 if (!priv->have_xkb && xmkeymap==NULL) {
2403 xmkeymap = XGetModifierMapping(spi_get_display ());
2408 case Accessibility_KEY_PRESS:
2409 dec_synth_keycode_press (controller, keycode);
2411 case Accessibility_KEY_PRESSRELEASE:
2412 dec_synth_keycode_press (controller, keycode);
2413 case Accessibility_KEY_RELEASE:
2414 dec_synth_keycode_release (controller, keycode);
2416 case Accessibility_KEY_SYM:
2417 #ifdef SPI_XKB_DEBUG
2418 fprintf (stderr, "KeySym synthesis\n");
2421 * note: we are using long for 'keycode'
2422 * in our arg list; it can contain either
2423 * a keycode or a keysym.
2425 dec_synth_keysym (controller, (KeySym) keycode);
2427 case Accessibility_KEY_STRING:
2428 if (!dec_synth_keystring (controller, keystring))
2429 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2433 if (synth_type == Accessibility_KEY_SYM) {
2437 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2439 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2441 spi_dec_clear_unlatch_pending (controller);
2443 reply = dbus_message_new_method_return (message);
2447 /* Accessibility::DEController::generateMouseEvent */
2448 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2456 gboolean err = FALSE;
2457 Display *display = spi_get_display ();
2459 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2461 return droute_invalid_arguments_error (message);
2465 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2466 eventName, (long int) x, (long int) y);
2468 switch (eventName[0])
2471 switch (eventName[1])
2473 /* TODO: check number of buttons before parsing */
2494 if (x != -1 && y != -1)
2496 XTestFakeMotionEvent (display, DefaultScreen (display),
2499 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2500 if (eventName[2] == 'c')
2501 XTestFakeButtonEvent (display, button, FALSE, 1);
2502 else if (eventName[2] == 'd')
2504 XTestFakeButtonEvent (display, button, FALSE, 1);
2505 XTestFakeButtonEvent (display, button, TRUE, 2);
2506 XTestFakeButtonEvent (display, button, FALSE, 3);
2510 case 'r': /* relative motion */
2511 XTestFakeRelativeMotionEvent (display, x, y, 0);
2513 case 'a': /* absolute motion */
2514 XTestFakeMotionEvent (display, DefaultScreen (display),
2518 reply = dbus_message_new_method_return (message);
2522 /* Accessibility::DEController::notifyListenersSync */
2523 static DBusMessage *
2524 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2526 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2527 Accessibility_DeviceEvent event;
2531 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2533 return droute_invalid_arguments_error (message);
2536 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2537 controller, (int) event.id);
2539 ret = spi_controller_notify_keylisteners (controller,
2540 (Accessibility_DeviceEvent *)
2543 reply = dbus_message_new_method_return (message);
2546 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2551 static DBusMessage *
2552 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2554 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2555 Accessibility_DeviceEvent event;
2558 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2560 return droute_invalid_arguments_error (message);
2563 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2564 controller, (int) event.id);
2566 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2568 reply = dbus_message_new_method_return (message);
2573 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2575 GObjectClass * object_class = (GObjectClass *) klass;
2577 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2579 object_class->finalize = spi_device_event_controller_object_finalize;
2581 if (!spi_dec_private_quark)
2582 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2586 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2592 handle_io (GIOChannel *source,
2593 GIOCondition condition,
2596 SpiDEController *controller = (SpiDEController *) data;
2597 gboolean is_consumed = FALSE;
2600 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2602 if (ev.type == KeyPress || ev.type == KeyRelease)
2603 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2606 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2611 #endif /* HAVE_XEVIE */
2614 spi_device_event_controller_init (SpiDEController *device_event_controller)
2619 #endif /* HAVE_XEVIE */
2621 DEControllerPrivateData *private;
2622 device_event_controller->key_listeners = NULL;
2623 device_event_controller->mouse_listeners = NULL;
2624 device_event_controller->keygrabs_list = NULL;
2625 device_event_controller->xevie_display = NULL;
2628 device_event_controller->xevie_display = XOpenDisplay(NULL);
2630 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2632 #ifdef SPI_KEYEVENT_DEBUG
2633 fprintf (stderr, "XevieStart() success \n");
2635 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2637 fd = ConnectionNumber(device_event_controller->xevie_display);
2638 ioc = g_io_channel_unix_new (fd);
2639 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2640 g_io_channel_unref (ioc);
2644 device_event_controller->xevie_display = NULL;
2645 #ifdef SPI_KEYEVENT_DEBUG
2646 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2649 #endif /* HAVE_XEVIE */
2651 private = g_new0 (DEControllerPrivateData, 1);
2652 gettimeofday (&private->last_press_time, NULL);
2653 gettimeofday (&private->last_release_time, NULL);
2654 g_object_set_qdata (G_OBJECT (device_event_controller),
2655 spi_dec_private_quark,
2657 spi_controller_register_with_devices (device_event_controller);
2661 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2662 const XEvent *event)
2664 Accessibility_DeviceEvent key_event;
2667 g_assert (event->type == KeyPress || event->type == KeyRelease);
2669 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2671 if (controller->xevie_display == NULL)
2672 spi_controller_update_key_grabs (controller, &key_event);
2674 /* relay to listeners, and decide whether to consume it or not */
2675 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2676 g_free(key_event.event_string);
2682 is_key_released (KeyCode code)
2687 XQueryKeymap (spi_get_display (), keys);
2688 down = BIT (keys, code);
2693 check_release (gpointer data)
2696 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2697 KeyCode code = event->hw_code;
2699 released = is_key_released (code);
2703 check_release_handler = 0;
2704 event->type = Accessibility_KEY_RELEASED_EVENT;
2705 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2707 return (released == 0);
2710 static void wait_for_release_event (XEvent *event,
2711 SpiDEController *controller)
2713 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2714 saved_controller = controller;
2715 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2718 static DRouteMethod dev_methods[] =
2720 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2721 { impl_register_device_listener, "registerDeviceListener" },
2722 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2723 { impl_deregister_device_listener, "deregisterDeviceListener" },
2724 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2725 { impl_generate_mouse_event, "generateMouseEvent" },
2726 { impl_notify_listeners_sync, "notifyListenersSync" },
2727 { impl_notify_listeners_async, "notifyListenersAsync" },
2732 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus, DRouteContext *droute)
2734 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2737 dec->registry = g_object_ref (reg);
2740 path = droute_add_one (droute,
2741 "/org/freedesktop/atspi/registry/deviceeventcontroller",
2744 droute_path_add_interface (path,
2745 SPI_DBUS_INTERFACE_DEC,
2749 spi_dec_init_mouse_listener (dec);
2750 /* TODO: kill mouse listener on finalize */