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 <atk-adaptor/spi-private.h>
57 #include <spi-common/keymasks.h>
58 #include <droute/droute.h>
59 #include <droute/introspect-loader.h>
60 #include <spi-common/spi-dbus.h>
61 #include <spi-common/spi-types.h>
63 #include "deviceeventcontroller.h"
64 #include "reentrant-list.h"
66 KeySym ucs2keysym (long ucs);
67 long keysym2ucs(KeySym keysym);
69 #define CHECK_RELEASE_DELAY 20
70 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
71 static guint check_release_handler = 0;
72 static Accessibility_DeviceEvent pressed_event;
73 static SpiDEController *saved_controller;
74 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
76 /* Our parent Gtk object type */
77 #define PARENT_TYPE G_TYPE_OBJECT
79 /* A pointer to our parent object class */
80 static int spi_error_code = 0;
81 static GdkPoint last_mouse_pos_static = {0, 0};
82 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
83 static unsigned int mouse_mask_state = 0;
84 static unsigned int mouse_button_mask =
85 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
86 static unsigned int key_modifier_mask =
87 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
88 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
90 static GQuark spi_dec_private_quark = 0;
91 static XModifierKeymap* xmkeymap = NULL;
93 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
97 SPI_DEVICE_TYPE_MOUSE,
98 SPI_DEVICE_TYPE_LAST_DEFINED
99 } SpiDeviceTypeCategory;
102 guint ref_count : 30;
103 guint pending_add : 1;
104 guint pending_remove : 1;
106 Accessibility_ControllerEventMask mod_mask;
107 dbus_uint32_t key_val; /* KeyCode */
108 } DEControllerGrabMask;
113 SpiDeviceTypeCategory type;
115 } DEControllerListener;
118 DEControllerListener listener;
121 Accessibility_ControllerEventMask mask;
122 Accessibility_EventListenerMode *mode;
123 } DEControllerKeyListener;
126 unsigned int last_press_keycode;
127 unsigned int last_release_keycode;
128 struct timeval last_press_time;
129 struct timeval last_release_time;
131 int xkb_major_extension_opcode;
132 int xkb_base_event_code;
133 int xkb_base_error_code;
134 unsigned int xkb_latch_mask;
135 unsigned int pending_xkb_mod_relatch_mask;
137 KeyCode reserved_keycode;
138 KeySym reserved_keysym;
139 guint reserved_reset_timeout;
140 } DEControllerPrivateData;
142 static void spi_controller_register_with_devices (SpiDEController *controller);
143 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
144 Accessibility_DeviceEvent *recv);
145 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
146 DEControllerListener *l);
147 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
148 const XEvent *event);
149 static void spi_controller_deregister_device_listener (SpiDEController *controller,
150 DEControllerListener *listener);
151 static void spi_deregister_controller_key_listener (SpiDEController *controller,
152 DEControllerKeyListener *key_listener);
153 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
154 const Accessibility_DeviceEvent *event);
156 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
157 const Accessibility_DeviceEvent *event);
158 static gboolean spi_clear_error_state (void);
159 static gboolean spi_dec_poll_mouse_moved (gpointer data);
160 static gboolean spi_dec_poll_mouse_moving (gpointer data);
161 static gboolean spi_dec_poll_mouse_idle (gpointer data);
163 #define spi_get_display() GDK_DISPLAY()
165 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
167 /* Private methods */
170 keysym_mod_mask (KeySym keysym, KeyCode keycode)
172 /* we really should use XKB and look directly at the keymap */
173 /* this is very inelegant */
174 Display *display = spi_get_display ();
175 unsigned int mods_rtn = 0;
176 unsigned int retval = 0;
179 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
180 (sym_rtn == keysym)) {
183 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
184 (sym_rtn == keysym)) {
187 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
188 (sym_rtn == keysym)) {
191 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
192 (sym_rtn == keysym)) {
195 else if (XkbLookupKeySym (display, keycode,
196 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
197 (sym_rtn == keysym)) {
198 retval = (Mod2Mask | ShiftMask);
200 else if (XkbLookupKeySym (display, keycode,
201 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
202 (sym_rtn == keysym)) {
203 retval = (Mod3Mask | ShiftMask);
205 else if (XkbLookupKeySym (display, keycode,
206 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
207 (sym_rtn == keysym)) {
208 retval = (Mod4Mask | ShiftMask);
216 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
219 Display *dpy = spi_get_display ();
221 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
223 fprintf (stderr, "ERROR getting map\n");
227 if (desc && desc->map)
229 gint offset = desc->map->key_sym_map[keycode].offset;
230 desc->map->syms[offset] = keysym;
234 fprintf (stderr, "Error changing key map: empty server structure\n");
236 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
238 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
239 * would be far preferable.
240 * HOWEVER it does not seem to work using XFree 4.3.
242 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
245 XkbFreeKeyboard (desc, 0, TRUE);
254 spi_dec_reset_reserved (gpointer data)
256 DEControllerPrivateData *priv = data;
257 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
258 priv->reserved_reset_timeout = 0;
263 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
266 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
269 DEControllerPrivateData *priv = (DEControllerPrivateData *)
270 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
271 /* if there's no keycode available, fix it */
272 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
274 keycode = priv->reserved_keycode;
276 * queue a timer to restore the old keycode. Ugly, but required
277 * due to races / asynchronous X delivery.
278 * Long-term fix is to extend the X keymap here instead of replace entries.
280 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
286 *modmask = keysym_mod_mask (keysym, keycode);
290 static DEControllerGrabMask *
291 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
293 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
295 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
297 clone->ref_count = 1;
298 clone->pending_add = TRUE;
299 clone->pending_remove = FALSE;
305 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
311 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
313 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
314 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
322 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
327 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
329 DEControllerPrivateData *priv =
330 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
332 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
333 priv->xkb_latch_mask);
335 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
339 spi_dec_clear_unlatch_pending (SpiDEController *controller)
341 DEControllerPrivateData *priv =
342 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
343 priv->xkb_latch_mask = 0;
346 static void emit(SpiDEController *controller, const char *interface, const char *name, const char *detail, int detail1, int detail2)
349 DBusMessageIter iter, iter_variant;
351 sig = dbus_message_new_signal(SPI_DBUS_PATH_DEC, interface, name);
353 dbus_message_iter_init_append (sig, &iter);
354 if (!detail) detail = "";
355 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &detail);
356 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &detail1);
357 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &detail2);
358 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "u", &iter_variant);
359 /* append dummy value */
360 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_UINT32, &detail1);
361 dbus_message_iter_close_container (&iter, &iter_variant);
362 dbus_connection_send(controller->droute->bus, sig, NULL);
363 dbus_message_unref(sig);
367 spi_dec_button_update_and_emit (SpiDEController *controller,
370 Accessibility_DeviceEvent mouse_e;
371 gchar event_detail[24];
372 gboolean is_consumed = FALSE;
374 if ((mask_return & mouse_button_mask) !=
375 (mouse_mask_state & mouse_button_mask))
377 int button_number = 0;
378 gboolean is_down = False;
380 if (!(mask_return & Button1Mask) &&
381 (mouse_mask_state & Button1Mask))
383 mouse_mask_state &= ~Button1Mask;
386 else if ((mask_return & Button1Mask) &&
387 !(mouse_mask_state & Button1Mask))
389 mouse_mask_state |= Button1Mask;
393 else if (!(mask_return & Button2Mask) &&
394 (mouse_mask_state & Button2Mask))
396 mouse_mask_state &= ~Button2Mask;
399 else if ((mask_return & Button2Mask) &&
400 !(mouse_mask_state & Button2Mask))
402 mouse_mask_state |= Button2Mask;
406 else if (!(mask_return & Button3Mask) &&
407 (mouse_mask_state & Button3Mask))
409 mouse_mask_state &= ~Button3Mask;
412 else if ((mask_return & Button3Mask) &&
413 !(mouse_mask_state & Button3Mask))
415 mouse_mask_state |= Button3Mask;
419 else if (!(mask_return & Button4Mask) &&
420 (mouse_mask_state & Button4Mask))
422 mouse_mask_state &= ~Button4Mask;
425 else if ((mask_return & Button4Mask) &&
426 !(mouse_mask_state & Button4Mask))
428 mouse_mask_state |= Button4Mask;
432 else if (!(mask_return & Button5Mask) &&
433 (mouse_mask_state & Button5Mask))
435 mouse_mask_state &= ~Button5Mask;
438 else if ((mask_return & Button5Mask) &&
439 !(mouse_mask_state & Button5Mask))
441 mouse_mask_state |= Button5Mask;
447 fprintf (stderr, "Button %d %s\n",
448 button_number, (is_down) ? "Pressed" : "Released");
450 snprintf (event_detail, 22, "%d%c", button_number,
451 (is_down) ? 'p' : 'r');
452 /* TODO: FIXME distinguish between physical and
455 mouse_e.type = (is_down) ?
456 Accessibility_BUTTON_PRESSED_EVENT :
457 Accessibility_BUTTON_RELEASED_EVENT;
458 mouse_e.id = button_number;
459 mouse_e.hw_code = button_number;
460 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
461 mouse_e.timestamp = 0;
462 mouse_e.event_string = "";
463 mouse_e.is_text = FALSE;
465 spi_controller_notify_mouselisteners (controller,
469 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
470 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, x, y);
473 spi_dec_set_unlatch_pending (controller, mask_return);
485 spi_dec_mouse_check (SpiDEController *controller,
486 int *x, int *y, gboolean *moved)
488 int win_x_return,win_y_return;
489 unsigned int mask_return;
490 Window root_return, child_return;
491 Display *display = spi_get_display ();
494 XQueryPointer(display, DefaultRootWindow (display),
495 &root_return, &child_return,
497 &win_x_return, &win_y_return, &mask_return);
499 * Since many clients grab the pointer, and X goes an automatic
500 * pointer grab on mouse-down, we often must detect mouse button events
501 * by polling rather than via a button grab.
502 * The while loop (rather than if) is used since it's possible that
503 * multiple buttons have changed state since we last checked.
505 if (mask_return != mouse_mask_state)
507 while (spi_dec_button_update_and_emit (controller, mask_return));
510 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
512 // TODO: combine these two signals?
513 dbus_uint32_t ix = *x, iy = *y;
514 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "abs", NULL, ix, iy);
515 ix -= last_mouse_pos->x;
516 iy -= last_mouse_pos->y;
517 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "rel", NULL, ix, iy);
518 last_mouse_pos->x = *x;
519 last_mouse_pos->y = *y;
531 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
534 dbus_uint32_t d1, d2;
537 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
538 prev_mask, current_mask);
541 /* set bits for the virtual modifiers like NUMLOCK */
542 if (prev_mask & _numlock_physical_mask)
543 prev_mask |= SPI_KEYMASK_NUMLOCK;
544 if (current_mask & _numlock_physical_mask)
545 current_mask |= SPI_KEYMASK_NUMLOCK;
547 d1 = prev_mask & key_modifier_mask;
548 d2 = current_mask & key_modifier_mask;
549 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "modifiers", NULL, d1, d2);
553 spi_dec_poll_mouse_moved (gpointer data)
555 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
560 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
562 if ((mask_return & key_modifier_mask) !=
563 (mouse_mask_state & key_modifier_mask))
565 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
566 mouse_mask_state = mask_return;
573 spi_dec_poll_mouse_idle (gpointer data)
575 if (! spi_dec_poll_mouse_moved (data))
579 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
585 spi_dec_poll_mouse_moving (gpointer data)
587 if (spi_dec_poll_mouse_moved (data))
591 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
596 #ifdef WE_NEED_UGRAB_MOUSE
598 spi_dec_ungrab_mouse (gpointer data)
600 Display *display = spi_get_display ();
603 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
604 XDefaultRootWindow (spi_get_display ()));
611 spi_dec_init_mouse_listener (SpiDEController *dec)
614 Display *display = spi_get_display ();
616 g_timeout_add (100, spi_dec_poll_mouse_idle, dec);
621 if (XGrabButton (display, AnyButton, AnyModifier,
622 gdk_x11_get_default_root_xwindow (),
623 True, ButtonPressMask | ButtonReleaseMask,
624 GrabModeSync, GrabModeAsync, None, None) != Success) {
626 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
630 XSync (display, False);
632 fprintf (stderr, "mouse buttons grabbed\n");
639 * Eventually we can use this to make the marshalling of mask types
640 * more sane, but for now we just use this to detect
641 * the use of 'virtual' masks such as numlock and convert them to
642 * system-specific mask values (i.e. ModMask).
645 static Accessibility_ControllerEventMask
646 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
648 Accessibility_ControllerEventMask tmp_mask;
649 gboolean has_numlock;
651 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
655 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
656 tmp_mask |= _numlock_physical_mask;
662 static DEControllerKeyListener *
663 spi_dec_key_listener_new (const char *bus_name,
666 const Accessibility_ControllerEventMask mask,
667 const dbus_uint32_t types,
668 const Accessibility_EventListenerMode *mode)
670 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
671 key_listener->listener.bus_name = g_strdup(bus_name);
672 key_listener->listener.path = g_strdup(path);
673 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
674 key_listener->keys = keys;
675 key_listener->mask = spi_dec_translate_mask (mask);
676 key_listener->listener.types = types;
679 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
680 memcpy(key_listener->mode, mode, sizeof(*mode));
683 key_listener->mode = NULL;
686 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
687 (unsigned int) key_listener->mask,
688 (int) (mode ? mode->global : 0),
689 (void *) key_listener->keys,
690 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
696 static DEControllerListener *
697 spi_dec_listener_new (const char *bus_name,
701 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
702 listener->bus_name = g_strdup(bus_name);
703 listener->path = g_strdup(path);
704 listener->type = SPI_DEVICE_TYPE_MOUSE;
705 listener->types = types;
709 static DEControllerListener *
710 spi_listener_clone (DEControllerListener *listener)
712 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
713 clone->bus_name = g_strdup (listener->bus_name);
714 clone->path = g_strdup (listener->path);
715 clone->type = listener->type;
716 clone->types = listener->types;
720 static GSList *keylist_clone (GSList *s)
725 for (l = s; l; l = g_slist_next(l))
727 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
730 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
731 kd->keycode = kds->keycode;
732 kd->keysym = kds->keysym;
733 kd->keystring = g_strdup(kds->keystring);
734 d = g_slist_append(d, kd);
740 static DEControllerKeyListener *
741 spi_key_listener_clone (DEControllerKeyListener *key_listener)
743 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
744 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
745 clone->listener.path = g_strdup (key_listener->listener.path);
746 clone->listener.type = SPI_DEVICE_TYPE_KBD;
747 clone->keys = keylist_clone (key_listener->keys);
748 clone->mask = key_listener->mask;
749 clone->listener.types = key_listener->listener.types;
750 if (key_listener->mode)
752 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
753 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
760 static void keylist_free(GSList *keys)
764 for (l = keys; l; l = g_slist_next(l))
766 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
767 g_free(kd->keystring);
774 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
776 keylist_free(key_listener->keys);
777 if (key_listener->mode) g_free(key_listener->mode);
778 g_free (key_listener);
782 spi_key_listener_clone_free (DEControllerKeyListener *clone)
784 spi_key_listener_data_free (clone);
788 spi_listener_clone_free (DEControllerListener *clone)
790 g_free (clone->path);
791 g_free (clone->bus_name);
796 spi_dec_listener_free (DEControllerListener *listener)
798 g_free (listener->bus_name);
799 g_free (listener->path);
800 if (listener->type == SPI_DEVICE_TYPE_KBD)
801 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
805 _register_keygrab (SpiDEController *controller,
806 DEControllerGrabMask *grab_mask)
810 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
811 spi_grab_mask_compare_values);
814 DEControllerGrabMask *cur_mask = l->data;
816 cur_mask->ref_count++;
817 if (cur_mask->pending_remove)
819 cur_mask->pending_remove = FALSE;
824 controller->keygrabs_list =
825 g_list_prepend (controller->keygrabs_list,
826 spi_grab_mask_clone (grab_mask));
831 _deregister_keygrab (SpiDEController *controller,
832 DEControllerGrabMask *grab_mask)
836 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
837 spi_grab_mask_compare_values);
841 DEControllerGrabMask *cur_mask = l->data;
843 cur_mask->ref_count--;
844 if (cur_mask->ref_count <= 0)
846 cur_mask->pending_remove = TRUE;
852 handle_keygrab (SpiDEController *controller,
853 DEControllerKeyListener *key_listener,
854 void (*process_cb) (SpiDEController *controller,
855 DEControllerGrabMask *grab_mask))
857 DEControllerGrabMask grab_mask = { 0 };
859 grab_mask.mod_mask = key_listener->mask;
860 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
862 grab_mask.key_val = AnyKey;
864 fprintf (stderr, "AnyKey grab!");
866 process_cb (controller, &grab_mask);
872 for (l = key_listener->keys; l; l = g_slist_next(l))
874 Accessibility_KeyDefinition *keydef = l->data;
875 long int key_val = keydef->keysym;
876 /* X Grabs require keycodes, not keysyms */
877 if (keydef->keystring && keydef->keystring[0])
879 key_val = XStringToKeysym(keydef->keystring);
883 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
887 key_val = keydef->keycode;
889 grab_mask.key_val = key_val;
890 process_cb (controller, &grab_mask);
896 spi_controller_register_global_keygrabs (SpiDEController *controller,
897 DEControllerKeyListener *key_listener)
899 handle_keygrab (controller, key_listener, _register_keygrab);
900 if (controller->xevie_display == NULL)
901 return spi_controller_update_key_grabs (controller, NULL);
907 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
908 DEControllerKeyListener *key_listener)
910 handle_keygrab (controller, key_listener, _deregister_keygrab);
911 if (controller->xevie_display == NULL)
912 spi_controller_update_key_grabs (controller, NULL);
916 spi_controller_register_device_listener (SpiDEController *controller,
917 DEControllerListener *listener)
919 DEControllerKeyListener *key_listener;
921 switch (listener->type) {
922 case SPI_DEVICE_TYPE_KBD:
923 key_listener = (DEControllerKeyListener *) listener;
925 controller->key_listeners = g_list_prepend (controller->key_listeners,
927 spi_dbus_add_disconnect_match (controller->droute->bus, key_listener->listener.bus_name);
928 if (key_listener->mode->global)
930 return spi_controller_register_global_keygrabs (controller, key_listener);
935 case SPI_DEVICE_TYPE_MOUSE:
936 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
937 spi_dbus_add_disconnect_match (controller->droute->bus, listener->bus_name);
946 Accessibility_DeviceEventListener_notifyEvent(SpiDEController *controller,
947 SpiRegistry *registry,
948 DEControllerListener *listener,
949 const Accessibility_DeviceEvent *key_event)
951 DBusMessage *message = dbus_message_new_method_call(listener->bus_name, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
953 dbus_bool_t consumed = FALSE;
955 dbus_error_init(&error);
956 if (spi_dbus_marshal_deviceEvent(message, key_event))
958 // TODO: Evaluate performance: perhaps rework this whole architecture
959 // to avoid blocking calls
960 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->droute->bus, message, 1000, &error);
964 dbus_error_init(&error);
965 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
966 dbus_message_unref(reply);
969 dbus_message_unref(message);
974 spi_controller_notify_mouselisteners (SpiDEController *controller,
975 const Accessibility_DeviceEvent *event)
978 GSList *notify = NULL, *l2;
979 GList **listeners = &controller->mouse_listeners;
980 gboolean is_consumed;
981 #ifdef SPI_KEYEVENT_DEBUG
982 gboolean found = FALSE;
989 for (l = *listeners; l; l = l->next)
991 DEControllerListener *listener = l->data;
993 if (spi_eventtype_seq_contains_event (listener->types, event))
995 /* we clone (don't dup) the listener, to avoid refcount inc. */
996 notify = g_slist_prepend (notify,
997 spi_listener_clone (listener));
998 #ifdef SPI_KEYEVENT_DEBUG
1004 #ifdef SPI_KEYEVENT_DEBUG
1007 g_print ("no match for event\n");
1011 is_consumed = FALSE;
1012 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1014 DEControllerListener *listener = l2->data;
1016 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, listener, event);
1018 spi_listener_clone_free ((DEControllerListener *) l2->data);
1021 for (; l2; l2 = l2->next)
1023 DEControllerListener *listener = l2->data;
1024 spi_listener_clone_free (listener);
1025 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1028 g_slist_free (notify);
1031 if (is_consumed) g_message ("consumed\n");
1037 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1040 Accessibility_DeviceEvent mouse_e;
1041 gchar event_detail[24];
1042 gboolean is_consumed = FALSE;
1043 gboolean xkb_mod_unlatch_occurred;
1044 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1045 dbus_uint32_t ix, iy;
1047 int button = xbutton_event->button;
1049 unsigned int mouse_button_state = xbutton_event->state;
1054 mouse_button_state |= Button1Mask;
1057 mouse_button_state |= Button2Mask;
1060 mouse_button_state |= Button3Mask;
1063 mouse_button_state |= Button4Mask;
1066 mouse_button_state |= Button5Mask;
1070 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1071 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1074 fprintf (stderr, "mouse button %d %s (%x)\n",
1075 xbutton_event->button,
1076 (xevent->type == ButtonPress) ? "Press" : "Release",
1077 mouse_button_state);
1079 snprintf (event_detail, 22, "%d%c", button,
1080 (xevent->type == ButtonPress) ? 'p' : 'r');
1082 /* TODO: FIXME distinguish between physical and logical buttons */
1083 mouse_e.type = (xevent->type == ButtonPress) ?
1084 Accessibility_BUTTON_PRESSED_EVENT :
1085 Accessibility_BUTTON_RELEASED_EVENT;
1086 mouse_e.id = button;
1087 mouse_e.hw_code = button;
1088 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1089 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1090 mouse_e.event_string = "";
1091 mouse_e.is_text = FALSE;
1092 if ((mouse_button_state & mouse_button_mask) !=
1093 (mouse_mask_state & mouse_button_mask))
1095 if ((mouse_mask_state & key_modifier_mask) !=
1096 (mouse_button_state & key_modifier_mask))
1097 spi_dec_emit_modifier_event (controller,
1098 mouse_mask_state, mouse_button_state);
1099 mouse_mask_state = mouse_button_state;
1101 spi_controller_notify_mouselisteners (controller, &mouse_e);
1102 ix = last_mouse_pos->x;
1103 iy = last_mouse_pos->y;
1104 /* TODO - Work out which part of the spec this emit is fulfilling */
1105 //emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, ix, iy);
1108 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1109 xevent->type == ButtonRelease);
1111 /* if client wants to consume this event, and XKB latch state was
1112 * unset by this button event, we reset it
1114 if (is_consumed && xkb_mod_unlatch_occurred)
1115 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1117 XAllowEvents (spi_get_display (),
1118 (is_consumed) ? SyncPointer : ReplayPointer,
1122 static GdkFilterReturn
1123 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1125 XEvent *xevent = gdk_xevent;
1126 SpiDEController *controller;
1127 DEControllerPrivateData *priv;
1128 Display *display = spi_get_display ();
1129 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1130 priv = (DEControllerPrivateData *)
1131 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1133 if (xevent->type == MappingNotify)
1136 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1138 if (controller->xevie_display == NULL)
1140 gboolean is_consumed;
1143 spi_device_event_controller_forward_key_event (controller, xevent);
1150 n_events = XPending (display);
1152 #ifdef SPI_KEYEVENT_DEBUG
1153 g_print ("Number of events pending: %d\n", n_events);
1155 for (i = 0; i < n_events; i++)
1157 XNextEvent (display, &next_event);
1158 if (next_event.type != KeyPress &&
1159 next_event.type != KeyRelease)
1160 g_warning ("Unexpected event type %d in queue", next_event.type);
1163 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1165 XUngrabKeyboard (display, CurrentTime);
1169 if (xevent->type == KeyPress)
1170 wait_for_release_event (xevent, controller);
1171 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1175 return GDK_FILTER_CONTINUE;
1177 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1179 spi_device_event_controller_forward_mouse_event (controller, xevent);
1181 if (xevent->type == priv->xkb_base_event_code)
1183 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1184 /* ugly but probably necessary...*/
1185 XSynchronize (display, TRUE);
1187 if (xkb_ev->xkb_type == XkbStateNotify)
1189 XkbStateNotifyEvent *xkb_snev =
1190 (XkbStateNotifyEvent *) xkb_ev;
1191 /* check the mouse, to catch mouse events grabbed by
1192 * another client; in case we should revert this XKB delatch
1194 if (!priv->pending_xkb_mod_relatch_mask)
1198 spi_dec_mouse_check (controller, &x, &y, &moved);
1200 /* we check again, since the previous call may have
1201 changed this flag */
1202 if (priv->pending_xkb_mod_relatch_mask)
1204 unsigned int feedback_mask;
1205 #ifdef SPI_XKB_DEBUG
1206 fprintf (stderr, "relatching %x\n",
1207 priv->pending_xkb_mod_relatch_mask);
1209 /* temporarily turn off the latch bell, if it's on */
1210 XkbGetControls (display,
1211 XkbAccessXFeedbackMask,
1213 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1214 if (feedback_mask & XkbAX_StickyKeysFBMask)
1216 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1218 priv->xkb_desc->ctrls->ax_options
1219 &= ~(XkbAX_StickyKeysFBMask);
1220 XkbChangeControls (display, priv->xkb_desc, &changes);
1222 /* TODO: account for lock as well as latch */
1223 XkbLatchModifiers (display,
1225 priv->pending_xkb_mod_relatch_mask,
1226 priv->pending_xkb_mod_relatch_mask);
1227 if (feedback_mask & XkbAX_StickyKeysFBMask)
1229 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1231 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1232 XkbChangeControls (display, priv->xkb_desc, &changes);
1234 #ifdef SPI_XKB_DEBUG
1235 fprintf (stderr, "relatched %x\n",
1236 priv->pending_xkb_mod_relatch_mask);
1238 priv->pending_xkb_mod_relatch_mask = 0;
1242 priv->xkb_latch_mask = xkb_snev->latched_mods;
1245 XSynchronize (display, FALSE);
1248 return GDK_FILTER_CONTINUE;
1252 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1254 if (error->error_code == BadAccess)
1256 g_message ("Could not complete key grab: grab already in use.\n");
1257 spi_error_code = BadAccess;
1262 return (*x_default_error_handler) (display, error);
1267 spi_controller_register_with_devices (SpiDEController *controller)
1269 DEControllerPrivateData *priv;
1270 int event_base, error_base, major_version, minor_version;
1272 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1273 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1275 XTestGrabControl (spi_get_display (), True);
1278 /* calls to device-specific implementations and routines go here */
1279 /* register with: keyboard hardware code handler */
1280 /* register with: (translated) keystroke handler */
1282 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1283 &priv->xkb_major_extension_opcode,
1284 &priv->xkb_base_event_code,
1285 &priv->xkb_base_error_code, NULL, NULL);
1289 guint64 reserved = 0;
1290 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1291 XkbSelectEvents (spi_get_display (),
1293 XkbStateNotifyMask, XkbStateNotifyMask);
1294 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1296 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1298 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1300 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1302 /* don't use this one if there's a grab client! */
1303 gdk_error_trap_push ();
1304 XGrabKey (spi_get_display (), i, 0,
1305 gdk_x11_get_default_root_xwindow (),
1307 GrabModeSync, GrabModeSync);
1308 XSync (spi_get_display (), TRUE);
1309 XUngrabKey (spi_get_display (), i, 0,
1310 gdk_x11_get_default_root_xwindow ());
1311 if (!gdk_error_trap_pop ())
1321 priv->reserved_keycode = reserved;
1322 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1326 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1327 priv->reserved_keysym = XK_numbersign;
1329 #ifdef SPI_RESERVED_DEBUG
1331 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1332 fprintf (stderr, "%x\n", sym);
1333 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1335 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1340 gdk_window_add_filter (NULL, global_filter_fn, controller);
1342 gdk_window_set_events (gdk_get_default_root_window (),
1343 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1345 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1349 spi_key_set_contains_key (GSList *key_set,
1350 const Accessibility_DeviceEvent *key_event)
1358 g_print ("null key set!");
1362 len = g_slist_length (key_set);
1364 if (len == 0) /* special case, means "all keys/any key" */
1367 g_print ("anykey\n");
1372 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1374 Accessibility_KeyDefinition *kd = l->data;
1375 #ifdef SPI_KEYEVENT_DEBUG
1376 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1380 (int) key_event->id,
1381 (int) key_event->hw_code,
1382 key_event->event_string);
1384 if (kd->keysym == (dbus_uint32_t) key_event->id)
1388 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1392 if (key_event->event_string && key_event->event_string[0] &&
1393 !strcmp (kd->keystring, key_event->event_string))
1403 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1404 const Accessibility_DeviceEvent *event)
1406 if (types == 0) /* special case, means "all events/any event" */
1411 return (types & (1 << event->type));
1415 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1416 DEControllerKeyListener *listener,
1417 dbus_bool_t is_system_global)
1419 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1420 spi_key_set_contains_key (listener->keys, key_event) &&
1421 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1422 (is_system_global == listener->mode->global))
1433 spi_controller_notify_keylisteners (SpiDEController *controller,
1434 Accessibility_DeviceEvent *key_event,
1435 dbus_bool_t is_system_global)
1438 GSList *notify = NULL, *l2;
1439 GList **key_listeners = &controller->key_listeners;
1440 gboolean is_consumed;
1447 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1448 if (key_event->modifiers & _numlock_physical_mask)
1449 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1451 for (l = *key_listeners; l; l = l->next)
1453 DEControllerKeyListener *key_listener = l->data;
1455 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1457 /* we clone (don't dup) the listener, to avoid refcount inc. */
1458 notify = g_slist_prepend (notify,
1459 spi_key_listener_clone (key_listener));
1463 #ifdef SPI_KEYEVENT_DEBUG
1466 g_print ("no match for event\n");
1470 is_consumed = FALSE;
1471 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1473 DEControllerKeyListener *key_listener = l2->data;
1475 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1476 key_listener->mode->preemptive;
1478 spi_key_listener_clone_free (key_listener);
1481 for (; l2; l2 = l2->next)
1483 DEControllerKeyListener *key_listener = l2->data;
1484 spi_key_listener_clone_free (key_listener);
1485 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1488 g_slist_free (notify);
1491 if (is_consumed) g_message ("consumed\n");
1497 spi_clear_error_state (void)
1499 gboolean retval = spi_error_code != 0;
1504 static Accessibility_DeviceEvent
1505 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1507 Accessibility_DeviceEvent key_event;
1509 const int cbuf_bytes = 20;
1513 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1514 key_event.id = (dbus_int32_t)(keysym);
1515 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1516 if (((XEvent *) x_key_event)->type == KeyPress)
1518 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1522 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1524 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1525 key_event.is_text = FALSE;
1529 key_event.event_string = g_strdup ("space");
1532 key_event.event_string = g_strdup ("Tab");
1535 key_event.event_string = g_strdup ("Backspace");
1538 key_event.event_string = g_strdup ("Return");
1541 key_event.event_string = g_strdup ("Home");
1544 key_event.event_string = g_strdup ("Page_Down");
1547 key_event.event_string = g_strdup ("Page_Up");
1550 key_event.event_string = g_strdup ("F1");
1553 key_event.event_string = g_strdup ("F2");
1556 key_event.event_string = g_strdup ("F3");
1559 key_event.event_string = g_strdup ("F4");
1562 key_event.event_string = g_strdup ("F5");
1565 key_event.event_string = g_strdup ("F6");
1568 key_event.event_string = g_strdup ("F7");
1571 key_event.event_string = g_strdup ("F8");
1574 key_event.event_string = g_strdup ("F9");
1577 key_event.event_string = g_strdup ("F10");
1580 key_event.event_string = g_strdup ("F11");
1583 key_event.event_string = g_strdup ("F12");
1586 key_event.event_string = g_strdup ("End");
1589 key_event.event_string = g_strdup ("Escape");
1592 key_event.event_string = g_strdup ("Up");
1595 key_event.event_string = g_strdup ("Down");
1598 key_event.event_string = g_strdup ("Left");
1601 key_event.event_string = g_strdup ("Right");
1607 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1608 key_event.event_string = g_strdup (cbuf);
1609 c = keysym2ucs (keysym);
1610 if (c > 0 && !g_unichar_iscntrl (c))
1612 key_event.is_text = TRUE;
1613 /* incorrect for some composed chars? */
1618 key_event.event_string = g_strdup ("");
1622 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1623 #ifdef SPI_KEYEVENT_DEBUG
1625 char *pressed_str = "pressed";
1626 char *released_str = "released";
1629 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1630 state_ptr = pressed_str;
1632 state_ptr = released_str;
1635 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1636 (unsigned long) keysym,
1638 keysym ? (int) keysym : '*',
1639 (int) x_key_event->state,
1640 key_event.event_string,
1641 key_event.event_string[0],
1642 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1646 fprintf (stderr, "%s%c\n",
1647 (x_key_event->state & Mod1Mask)?"Alt-":"",
1648 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1649 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1650 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1651 #endif /* SPI_DEBUG */
1656 spi_controller_update_key_grabs (SpiDEController *controller,
1657 Accessibility_DeviceEvent *recv)
1660 gboolean update_failed = FALSE;
1661 KeyCode keycode = 0;
1663 g_return_val_if_fail (controller != NULL, FALSE);
1666 * masks known to work with default RH 7.1+:
1667 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1668 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1669 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1670 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1672 * ControlMask grabs are broken, must be in use already
1675 keycode = keycode_for_keysym (controller, recv->id, NULL);
1676 for (l = controller->keygrabs_list; l; l = next)
1679 gboolean re_issue_grab;
1680 DEControllerGrabMask *grab_mask = l->data;
1684 re_issue_grab = recv &&
1685 (recv->modifiers & grab_mask->mod_mask) &&
1686 (grab_mask->key_val == keycode);
1689 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1690 (long int) grab_mask->key_val,
1691 (long int) grab_mask->mod_mask,
1692 grab_mask->pending_add ? '+' : '.',
1693 grab_mask->pending_remove ? '-' : '.',
1694 re_issue_grab ? "re-issue": "");
1699 if (grab_mask->pending_add && grab_mask->pending_remove)
1703 else if (grab_mask->pending_remove)
1706 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1708 XUngrabKey (spi_get_display (),
1710 grab_mask->mod_mask,
1711 gdk_x11_get_default_root_xwindow ());
1715 else if (grab_mask->pending_add || re_issue_grab)
1719 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1721 XGrabKey (spi_get_display (),
1723 grab_mask->mod_mask,
1724 gdk_x11_get_default_root_xwindow (),
1728 XSync (spi_get_display (), False);
1729 update_failed = spi_clear_error_state ();
1730 if (update_failed) {
1731 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1736 grab_mask->pending_add = FALSE;
1737 grab_mask->pending_remove = FALSE;
1741 g_assert (grab_mask->ref_count <= 0);
1743 controller->keygrabs_list = g_list_delete_link (
1744 controller->keygrabs_list, l);
1746 spi_grab_mask_free (grab_mask);
1751 return ! update_failed;
1755 * Implemented GObject::finalize
1758 spi_device_event_controller_object_finalize (GObject *object)
1760 SpiDEController *controller;
1761 DEControllerPrivateData *private;
1762 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1763 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1765 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1767 /* disconnect any special listeners, get rid of outstanding keygrabs */
1768 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1771 if (controller->xevie_display != NULL)
1773 XevieEnd(controller->xevie_display);
1774 #ifdef SPI_KEYEVENT_DEBUG
1775 printf("XevieEnd(dpy) finished \n");
1780 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1781 if (private->xkb_desc)
1782 XkbFreeKeyboard (private->xkb_desc, 0, True);
1784 parent_class->finalize (object);
1788 * DBus Accessibility::DEController::registerKeystrokeListener
1789 * method implementation
1791 static DBusMessage *
1792 impl_register_keystroke_listener (DBusConnection *bus,
1793 DBusMessage *message,
1796 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1797 DEControllerKeyListener *dec_listener;
1798 DBusMessageIter iter, iter_array;
1800 GSList *keys = NULL;
1801 dbus_int32_t mask, type;
1802 Accessibility_EventListenerMode *mode;
1807 dbus_message_iter_init(message, &iter);
1808 // TODO: verify type signature
1809 dbus_message_iter_get_basic(&iter, &path);
1810 dbus_message_iter_next(&iter);
1811 dbus_message_iter_recurse(&iter, &iter_array);
1812 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1814 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1815 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))
1819 kd->keystring = g_strdup (keystring);
1820 keys = g_slist_append(keys, kd);
1822 dbus_message_iter_next(&iter);
1823 dbus_message_iter_get_basic(&iter, &mask);
1824 dbus_message_iter_next(&iter);
1825 dbus_message_iter_get_basic(&iter, &type);
1826 dbus_message_iter_next(&iter);
1827 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1830 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);
1833 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1834 dbus_message_get_sender(message), path, (unsigned long) mask);
1836 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1837 ret = spi_controller_register_device_listener (
1838 controller, (DEControllerListener *) dec_listener);
1839 reply = dbus_message_new_method_return (message);
1842 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1848 * DBus Accessibility::DEController::registerDeviceEventListener
1849 * method implementation
1851 static DBusMessage *
1852 impl_register_device_listener (DBusConnection *bus,
1853 DBusMessage *message,
1856 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1857 DEControllerListener *dec_listener;
1860 dbus_int32_t event_types;
1864 dbus_error_init(&error);
1865 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1867 return spi_dbus_general_error (message);
1869 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1870 ret = spi_controller_register_device_listener (
1871 controller, (DEControllerListener *) dec_listener);
1872 reply = dbus_message_new_method_return (message);
1875 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1881 DBusConnection *bus;
1882 DEControllerListener *listener;
1883 } RemoveListenerClosure;
1885 static SpiReEntrantContinue
1886 remove_listener_cb (GList * const *list,
1889 DEControllerListener *listener = (*list)->data;
1890 RemoveListenerClosure *ctx = user_data;
1892 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1893 !strcmp(ctx->listener->path, listener->path))
1895 spi_re_entrant_list_delete_link (list);
1896 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1897 spi_dec_listener_free (listener);
1900 return SPI_RE_ENTRANT_CONTINUE;
1903 static SpiReEntrantContinue
1904 copy_key_listener_cb (GList * const *list,
1907 DEControllerKeyListener *key_listener = (*list)->data;
1908 RemoveListenerClosure *ctx = user_data;
1910 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1911 !strcmp(ctx->listener->path, key_listener->listener.path))
1913 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1914 DEControllerKeyListener *ctx_key_listener =
1915 (DEControllerKeyListener *) ctx->listener;
1916 keylist_free (ctx_key_listener->keys);
1917 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1920 return SPI_RE_ENTRANT_CONTINUE;
1924 spi_controller_deregister_device_listener (SpiDEController *controller,
1925 DEControllerListener *listener)
1927 RemoveListenerClosure ctx;
1929 ctx.bus = controller->droute->bus;
1930 ctx.listener = listener;
1932 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1933 remove_listener_cb, &ctx);
1937 spi_deregister_controller_key_listener (SpiDEController *controller,
1938 DEControllerKeyListener *key_listener)
1940 RemoveListenerClosure ctx;
1942 ctx.bus = controller->droute->bus;
1943 ctx.listener = (DEControllerListener *) key_listener;
1945 /* special case, copy keyset from existing controller list entry */
1946 if (g_slist_length(key_listener->keys) == 0)
1948 spi_re_entrant_list_foreach (&controller->key_listeners,
1949 copy_key_listener_cb, &ctx);
1952 spi_controller_deregister_global_keygrabs (controller, key_listener);
1954 spi_re_entrant_list_foreach (&controller->key_listeners,
1955 remove_listener_cb, &ctx);
1960 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1964 for (l = controller->mouse_listeners; l; l = tmp)
1966 DEControllerListener *listener = l->data;
1968 if (!strcmp (listener->bus_name, bus_name))
1970 spi_controller_deregister_device_listener (controller, listener);
1973 for (l = controller->key_listeners; l; l = tmp)
1975 DEControllerKeyListener *key_listener = l->data;
1977 if (!strcmp (key_listener->listener.bus_name, bus_name))
1979 spi_deregister_controller_key_listener (controller, key_listener);
1985 * DBus Accessibility::DEController::deregisterKeystrokeListener
1986 * method implementation
1988 static DBusMessage *
1989 impl_deregister_keystroke_listener (DBusConnection *bus,
1990 DBusMessage *message,
1993 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1994 DEControllerKeyListener *key_listener;
1995 DBusMessageIter iter, iter_array;
1997 GSList *keys = NULL;
1998 dbus_int32_t mask, type;
2001 dbus_message_iter_init(message, &iter);
2002 // TODO: verify type signature
2003 dbus_message_iter_get_basic(&iter, &path);
2004 dbus_message_iter_next(&iter);
2005 dbus_message_iter_recurse(&iter, &iter_array);
2006 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2008 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2011 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))
2015 kd->keystring = g_strdup (keystring);
2016 keys = g_slist_append(keys, kd);
2018 dbus_message_iter_next(&iter);
2019 dbus_message_iter_get_basic(&iter, &mask);
2020 dbus_message_iter_next(&iter);
2021 dbus_message_iter_get_basic(&iter, &type);
2022 dbus_message_iter_next(&iter);
2023 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2024 #ifdef SPI_DEREGISTER_DEBUG
2025 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2026 (void *) l, (unsigned long) mask->value);
2029 spi_deregister_controller_key_listener (controller, key_listener);
2031 spi_dec_listener_free ((DEControllerListener *) key_listener);
2032 reply = dbus_message_new_method_return (message);
2037 * DBus Accessibility::DEController::deregisterDeviceEventListener
2038 * method implementation
2040 static DBusMessage *
2041 impl_deregister_device_listener (DBusConnection *bus,
2042 DBusMessage *message,
2045 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2046 DEControllerListener *listener;
2049 dbus_int32_t event_types;
2052 dbus_error_init(&error);
2053 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2055 return spi_dbus_general_error (message);
2057 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2058 spi_controller_deregister_device_listener (
2059 controller, listener);
2060 reply = dbus_message_new_method_return (message);
2064 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2066 unsigned int retval = 0;
2067 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2068 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2070 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2071 retval = XkbGetSlowKeysDelay (spi_get_display (),
2072 XkbUseCoreKbd, &bounce_delay);
2074 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2076 Status s = XkbGetControls (spi_get_display (),
2077 XkbAllControlsMask, priv->xkb_desc);
2080 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2081 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2086 #ifdef SPI_XKB_DEBUG
2087 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2092 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2094 unsigned int retval = 0;
2095 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2096 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2098 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2099 retval = XkbGetBounceKeysDelay (spi_get_display (),
2100 XkbUseCoreKbd, &bounce_delay);
2102 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2104 Status s = XkbGetControls (spi_get_display (),
2105 XkbAllControlsMask, priv->xkb_desc);
2108 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2109 retval = priv->xkb_desc->ctrls->debounce_delay;
2114 #ifdef SPI_XKB_DEBUG
2115 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2121 dec_synth_keycode_press (SpiDEController *controller,
2122 unsigned int keycode)
2124 unsigned int time = CurrentTime;
2125 unsigned int bounce_delay;
2126 unsigned int elapsed_msec;
2128 DEControllerPrivateData *priv =
2129 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2130 spi_dec_private_quark);
2131 if (keycode == priv->last_release_keycode)
2133 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2136 gettimeofday (&tv, NULL);
2138 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2139 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2140 #ifdef SPI_XKB_DEBUG
2141 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2142 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2144 #ifdef THIS_IS_BROKEN
2145 if (elapsed_msec < bounce_delay)
2146 time = bounce_delay - elapsed_msec + 1;
2148 time = bounce_delay + 10;
2149 /* fudge for broken XTest */
2151 #ifdef SPI_XKB_DEBUG
2152 fprintf (stderr, "waiting %d ms\n", time);
2156 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2157 priv->last_press_keycode = keycode;
2158 XFlush (spi_get_display ());
2159 XSync (spi_get_display (), False);
2160 gettimeofday (&priv->last_press_time, NULL);
2165 dec_synth_keycode_release (SpiDEController *controller,
2166 unsigned int keycode)
2168 unsigned int time = CurrentTime;
2169 unsigned int slow_delay;
2170 unsigned int elapsed_msec;
2172 DEControllerPrivateData *priv =
2173 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2174 spi_dec_private_quark);
2175 if (keycode == priv->last_press_keycode)
2177 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2180 gettimeofday (&tv, NULL);
2182 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2183 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2184 #ifdef SPI_XKB_DEBUG
2185 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2186 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2188 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2189 if (elapsed_msec < slow_delay)
2190 time = slow_delay - elapsed_msec + 1;
2192 time = slow_delay + 10;
2193 /* our XTest seems broken, we have to add slop as above */
2195 #ifdef SPI_XKB_DEBUG
2196 fprintf (stderr, "waiting %d ms\n", time);
2200 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2201 priv->last_release_keycode = keycode;
2202 XSync (spi_get_display (), False);
2203 gettimeofday (&priv->last_release_time, NULL);
2208 dec_get_modifier_state (SpiDEController *controller)
2210 return mouse_mask_state;
2214 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2216 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2217 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2219 if (priv->have_xkb) {
2220 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2221 modifiers, modifiers);
2224 for (mod_index=0;mod_index<8;mod_index++)
2225 if (modifiers & (1<<mod_index))
2226 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2232 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2234 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2235 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2237 if (priv->have_xkb) {
2238 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2242 for (mod_index=0;mod_index<8;mod_index++)
2243 if (modifiers & (1<<mod_index))
2244 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2250 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2252 return ucs2keysym ((long) unichar);
2256 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2258 KeyCode key_synth_code;
2259 unsigned int modifiers, synth_mods, lock_mods;
2261 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2263 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2265 /* TODO: set the modifiers accordingly! */
2266 modifiers = dec_get_modifier_state (controller);
2267 /* side-effect; we may unset mousebutton modifiers here! */
2270 if (synth_mods != modifiers) {
2271 lock_mods = synth_mods & ~modifiers;
2272 dec_lock_modifiers (controller, lock_mods);
2274 dec_synth_keycode_press (controller, key_synth_code);
2275 dec_synth_keycode_release (controller, key_synth_code);
2277 if (synth_mods != modifiers)
2278 dec_unlock_modifiers (controller, lock_mods);
2284 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2286 /* probably we need to create and inject an XIM handler eventually. */
2287 /* for now, try to match the string to existing
2288 * keycode+modifier states.
2292 gunichar unichar = 0;
2294 gboolean retval = TRUE;
2297 maxlen = strlen (keystring) + 1;
2298 keysyms = g_new0 (KeySym, maxlen);
2299 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2304 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2306 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2311 mbytes = g_unichar_to_utf8 (unichar, bytes);
2312 bytes[mbytes] = '\0';
2314 fprintf (stderr, "[unichar %s]", bytes);
2316 keysym = dec_keysym_for_unichar (controller, unichar);
2317 if (keysym == NoSymbol) {
2319 fprintf (stderr, "no keysym for %s", bytes);
2324 keysyms[i++] = keysym;
2325 keystring = g_utf8_next_char (keystring);
2328 XSynchronize (spi_get_display (), TRUE);
2329 for (i = 0; keysyms[i]; ++i) {
2330 if (!dec_synth_keysym (controller, keysyms[i])) {
2332 fprintf (stderr, "could not synthesize %c\n",
2339 XSynchronize (spi_get_display (), FALSE);
2348 * DBus Accessibility::DEController::registerKeystrokeListener
2349 * method implementation
2351 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2353 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2355 dbus_int32_t keycode;
2357 dbus_uint32_t synth_type;
2360 DEControllerPrivateData *priv;
2363 dbus_error_init(&error);
2364 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2366 return spi_dbus_general_error (message);
2370 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2371 (long) keycode, (int) synth_type);
2373 /* TODO: hide/wrap/remove X dependency */
2376 * TODO: when initializing, query for XTest extension before using,
2377 * and fall back to XSendEvent() if XTest is not available.
2380 gdk_error_trap_push ();
2382 priv = (DEControllerPrivateData *)
2383 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2385 if (!priv->have_xkb && xmkeymap==NULL) {
2386 xmkeymap = XGetModifierMapping(spi_get_display ());
2391 case Accessibility_KEY_PRESS:
2392 dec_synth_keycode_press (controller, keycode);
2394 case Accessibility_KEY_PRESSRELEASE:
2395 dec_synth_keycode_press (controller, keycode);
2396 case Accessibility_KEY_RELEASE:
2397 dec_synth_keycode_release (controller, keycode);
2399 case Accessibility_KEY_SYM:
2400 #ifdef SPI_XKB_DEBUG
2401 fprintf (stderr, "KeySym synthesis\n");
2404 * note: we are using long for 'keycode'
2405 * in our arg list; it can contain either
2406 * a keycode or a keysym.
2408 dec_synth_keysym (controller, (KeySym) keycode);
2410 case Accessibility_KEY_STRING:
2411 if (!dec_synth_keystring (controller, keystring))
2412 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2416 if (synth_type == Accessibility_KEY_SYM) {
2420 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2422 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2424 spi_dec_clear_unlatch_pending (controller);
2426 reply = dbus_message_new_method_return (message);
2430 /* Accessibility::DEController::generateMouseEvent */
2431 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2439 gboolean err = FALSE;
2440 Display *display = spi_get_display ();
2442 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2444 return spi_dbus_general_error (message);
2448 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2449 eventName, (long int) x, (long int) y);
2451 switch (eventName[0])
2454 switch (eventName[1])
2456 /* TODO: check number of buttons before parsing */
2477 if (x != -1 && y != -1)
2479 XTestFakeMotionEvent (display, DefaultScreen (display),
2482 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2483 if (eventName[2] == 'c')
2484 XTestFakeButtonEvent (display, button, FALSE, 1);
2485 else if (eventName[2] == 'd')
2487 XTestFakeButtonEvent (display, button, FALSE, 1);
2488 XTestFakeButtonEvent (display, button, TRUE, 2);
2489 XTestFakeButtonEvent (display, button, FALSE, 3);
2493 case 'r': /* relative motion */
2494 XTestFakeRelativeMotionEvent (display, x, y, 0);
2496 case 'a': /* absolute motion */
2497 XTestFakeMotionEvent (display, DefaultScreen (display),
2501 reply = dbus_message_new_method_return (message);
2505 /* Accessibility::DEController::notifyListenersSync */
2506 static DBusMessage *
2507 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2509 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2510 Accessibility_DeviceEvent event;
2514 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2516 return spi_dbus_general_error (message);
2519 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2520 controller, (int) event.id);
2522 ret = spi_controller_notify_keylisteners (controller,
2523 (Accessibility_DeviceEvent *)
2526 reply = dbus_message_new_method_return (message);
2529 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2534 static DBusMessage *
2535 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2537 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2538 Accessibility_DeviceEvent event;
2541 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2543 return spi_dbus_general_error (message);
2546 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2547 controller, (int) event.id);
2549 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2551 reply = dbus_message_new_method_return (message);
2556 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2558 GObjectClass * object_class = (GObjectClass *) klass;
2560 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2562 object_class->finalize = spi_device_event_controller_object_finalize;
2564 if (!spi_dec_private_quark)
2565 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2569 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2575 handle_io (GIOChannel *source,
2576 GIOCondition condition,
2579 SpiDEController *controller = (SpiDEController *) data;
2580 gboolean is_consumed = FALSE;
2583 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2585 if (ev.type == KeyPress || ev.type == KeyRelease)
2586 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2589 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2594 #endif /* HAVE_XEVIE */
2597 spi_device_event_controller_init (SpiDEController *device_event_controller)
2602 #endif /* HAVE_XEVIE */
2604 DEControllerPrivateData *private;
2605 device_event_controller->key_listeners = NULL;
2606 device_event_controller->mouse_listeners = NULL;
2607 device_event_controller->keygrabs_list = NULL;
2608 device_event_controller->xevie_display = NULL;
2611 device_event_controller->xevie_display = XOpenDisplay(NULL);
2613 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2615 #ifdef SPI_KEYEVENT_DEBUG
2616 fprintf (stderr, "XevieStart() success \n");
2618 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2620 fd = ConnectionNumber(device_event_controller->xevie_display);
2621 ioc = g_io_channel_unix_new (fd);
2622 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2623 g_io_channel_unref (ioc);
2627 device_event_controller->xevie_display = NULL;
2628 #ifdef SPI_KEYEVENT_DEBUG
2629 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2632 #endif /* HAVE_XEVIE */
2634 private = g_new0 (DEControllerPrivateData, 1);
2635 gettimeofday (&private->last_press_time, NULL);
2636 gettimeofday (&private->last_release_time, NULL);
2637 g_object_set_qdata (G_OBJECT (device_event_controller),
2638 spi_dec_private_quark,
2640 spi_controller_register_with_devices (device_event_controller);
2644 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2645 const XEvent *event)
2647 Accessibility_DeviceEvent key_event;
2650 g_assert (event->type == KeyPress || event->type == KeyRelease);
2652 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2654 if (controller->xevie_display == NULL)
2655 spi_controller_update_key_grabs (controller, &key_event);
2657 /* relay to listeners, and decide whether to consume it or not */
2658 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2659 g_free(key_event.event_string);
2665 is_key_released (KeyCode code)
2670 XQueryKeymap (spi_get_display (), keys);
2671 down = BIT (keys, code);
2676 check_release (gpointer data)
2679 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2680 KeyCode code = event->hw_code;
2682 released = is_key_released (code);
2686 check_release_handler = 0;
2687 event->type = Accessibility_KEY_RELEASED_EVENT;
2688 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2690 return (released == 0);
2693 static void wait_for_release_event (XEvent *event,
2694 SpiDEController *controller)
2696 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2697 saved_controller = controller;
2698 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2701 static DBusMessage *
2702 impl_introspect (DBusConnection *bus, DBusMessage *message,
2711 path = dbus_message_get_path(message);
2713 output = g_string_new(spi_introspection_header);
2715 g_string_append_printf(output, spi_introspection_node_element, path);
2717 spi_append_interface(output, SPI_DBUS_INTERFACE_DEC);
2719 g_string_append(output, spi_introspection_footer);
2720 final = g_string_free(output, FALSE);
2722 reply = dbus_message_new_method_return (message);
2723 g_assert(reply != NULL);
2724 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final,
2731 static DRouteMethod dev_methods[] =
2733 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2734 { impl_register_device_listener, "registerDeviceListener" },
2735 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2736 { impl_deregister_device_listener, "deregisterDeviceListener" },
2737 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2738 { impl_generate_mouse_event, "generateMouseEvent" },
2739 { impl_notify_listeners_sync, "notifyListenersSync" },
2740 { impl_notify_listeners_async, "notifyListenersAsync" },
2744 static DRouteMethod intro_methods[] = {
2745 {impl_introspect, "Introspect"},
2750 spi_registry_dec_new (SpiRegistry *reg, DRouteData *droute)
2752 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2754 dec->registry = g_object_ref (reg);
2755 dec->droute = droute;
2757 droute_add_interface (droute,
2758 SPI_DBUS_INTERFACE_DEC,
2761 droute_add_interface (droute,
2762 "org.freedesktop.DBus.Introspectable",
2766 spi_dec_init_mouse_listener (dec);
2767 /* TODO: kill mouse listener on finalize */