1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2003 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
38 #include <X11/extensions/XTest.h>
39 #include <X11/XKBlib.h>
42 #include <X11/keysymdef.h>
45 #include <X11/Xproto.h>
47 #include <X11/extensions/Xevie.h>
48 #endif /* HAVE_XEVIE */
52 #include <dbus/dbus.h>
57 #include "de-marshaller.h"
60 #include "deviceeventcontroller.h"
61 #include "reentrant-list.h"
63 #include "introspection.h"
65 KeySym ucs2keysym (long ucs);
66 long keysym2ucs(KeySym keysym);
68 #define CHECK_RELEASE_DELAY 20
69 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
70 static guint check_release_handler = 0;
71 static Accessibility_DeviceEvent pressed_event;
72 static SpiDEController *saved_controller;
73 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
75 /* Our parent Gtk object type */
76 #define PARENT_TYPE G_TYPE_OBJECT
78 /* A pointer to our parent object class */
79 static int spi_error_code = 0;
84 typedef struct _SpiPoint SpiPoint;
85 static SpiPoint last_mouse_pos_static = {0, 0};
86 static SpiPoint *last_mouse_pos = &last_mouse_pos_static;
87 static unsigned int mouse_mask_state = 0;
88 static unsigned int mouse_button_mask =
89 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
90 static unsigned int key_modifier_mask =
91 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
92 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
94 static GQuark spi_dec_private_quark = 0;
95 static XModifierKeymap* xmkeymap = NULL;
97 static gboolean have_mouse_listener = FALSE;
98 static gboolean have_mouse_event_listener = FALSE;
100 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
104 SPI_DEVICE_TYPE_MOUSE,
105 SPI_DEVICE_TYPE_LAST_DEFINED
106 } SpiDeviceTypeCategory;
109 guint ref_count : 30;
110 guint pending_add : 1;
111 guint pending_remove : 1;
113 Accessibility_ControllerEventMask mod_mask;
114 dbus_uint32_t key_val; /* KeyCode */
115 } DEControllerGrabMask;
120 SpiDeviceTypeCategory type;
122 } DEControllerListener;
125 DEControllerListener listener;
128 Accessibility_ControllerEventMask mask;
129 Accessibility_EventListenerMode *mode;
130 } DEControllerKeyListener;
133 unsigned int last_press_keycode;
134 unsigned int last_release_keycode;
135 struct timeval last_press_time;
136 struct timeval last_release_time;
138 int xkb_major_extension_opcode;
139 int xkb_base_event_code;
140 int xkb_base_error_code;
141 unsigned int xkb_latch_mask;
142 unsigned int pending_xkb_mod_relatch_mask;
144 KeyCode reserved_keycode;
145 KeySym reserved_keysym;
146 guint reserved_reset_timeout;
147 } DEControllerPrivateData;
149 static void spi_controller_register_with_devices (SpiDEController *controller);
150 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
151 Accessibility_DeviceEvent *recv);
152 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
153 DEControllerListener *l);
154 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
155 const XEvent *event);
156 static void spi_controller_deregister_device_listener (SpiDEController *controller,
157 DEControllerListener *listener);
158 static void spi_deregister_controller_key_listener (SpiDEController *controller,
159 DEControllerKeyListener *key_listener);
160 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
161 const Accessibility_DeviceEvent *event);
163 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
164 const Accessibility_DeviceEvent *event);
165 static gboolean spi_clear_error_state (void);
166 static gboolean spi_dec_poll_mouse_moved (gpointer data);
167 static gboolean spi_dec_poll_mouse_moving (gpointer data);
168 static gboolean spi_dec_poll_mouse_idle (gpointer data);
170 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
173 invalid_arguments_error (DBusMessage *message)
178 errmsg= g_strdup_printf (
179 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
180 dbus_message_get_member (message),
181 dbus_message_get_signature (message),
182 dbus_message_get_interface (message));
183 reply = dbus_message_new_error (message,
184 DBUS_ERROR_INVALID_ARGS,
190 /* Private methods */
192 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
194 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
198 dbus_error_init (&error);
199 dbus_bus_add_match (bus, match, &error);
201 return !dbus_error_is_set (&error);
207 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
209 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
213 dbus_error_init (&error);
214 dbus_bus_remove_match (bus, match, &error);
216 return !dbus_error_is_set (&error);
222 keysym_mod_mask (KeySym keysym, KeyCode keycode)
224 /* we really should use XKB and look directly at the keymap */
225 /* this is very inelegant */
226 Display *display = spi_get_display ();
227 unsigned int mods_rtn = 0;
228 unsigned int retval = 0;
231 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
232 (sym_rtn == keysym)) {
235 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
236 (sym_rtn == keysym)) {
239 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
240 (sym_rtn == keysym)) {
243 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
244 (sym_rtn == keysym)) {
247 else if (XkbLookupKeySym (display, keycode,
248 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
249 (sym_rtn == keysym)) {
250 retval = (Mod2Mask | ShiftMask);
252 else if (XkbLookupKeySym (display, keycode,
253 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
254 (sym_rtn == keysym)) {
255 retval = (Mod3Mask | ShiftMask);
257 else if (XkbLookupKeySym (display, keycode,
258 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
259 (sym_rtn == keysym)) {
260 retval = (Mod4Mask | ShiftMask);
268 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
271 Display *dpy = spi_get_display ();
273 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
275 fprintf (stderr, "ERROR getting map\n");
279 if (desc && desc->map)
281 gint offset = desc->map->key_sym_map[keycode].offset;
282 desc->map->syms[offset] = keysym;
286 fprintf (stderr, "Error changing key map: empty server structure\n");
288 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
290 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
291 * would be far preferable.
292 * HOWEVER it does not seem to work using XFree 4.3.
294 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
297 XkbFreeKeyboard (desc, 0, TRUE);
306 spi_dec_reset_reserved (gpointer data)
308 DEControllerPrivateData *priv = data;
309 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
310 priv->reserved_reset_timeout = 0;
315 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
318 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
321 DEControllerPrivateData *priv = (DEControllerPrivateData *)
322 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
323 /* if there's no keycode available, fix it */
324 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
326 keycode = priv->reserved_keycode;
328 * queue a timer to restore the old keycode. Ugly, but required
329 * due to races / asynchronous X delivery.
330 * Long-term fix is to extend the X keymap here instead of replace entries.
332 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
338 *modmask = keysym_mod_mask (keysym, keycode);
342 static DEControllerGrabMask *
343 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
345 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
347 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
349 clone->ref_count = 1;
350 clone->pending_add = TRUE;
351 clone->pending_remove = FALSE;
357 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
363 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
365 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
366 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
374 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
379 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
381 DEControllerPrivateData *priv =
382 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
384 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
385 priv->xkb_latch_mask);
387 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
391 spi_dec_clear_unlatch_pending (SpiDEController *controller)
393 DEControllerPrivateData *priv =
394 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
395 priv->xkb_latch_mask = 0;
398 static void emit(SpiDEController *controller, const char *interface, const char *name, const char *minor, int a1, int a2)
400 DBusMessage *signal = NULL;
401 DBusMessageIter iter, iter_struct, iter_variant;
403 const char *path = SPI_DBUS_PATH_ROOT;
404 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
406 signal = dbus_message_new_signal (path, interface, name);
408 dbus_message_iter_init_append (signal, &iter);
410 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
411 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a1);
412 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a2);
413 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
414 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
415 dbus_message_iter_close_container (&iter, &iter_variant);
417 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
419 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
420 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
421 dbus_message_iter_close_container (&iter, &iter_struct);
423 dbus_connection_send (controller->bus, signal, NULL);
427 spi_dec_button_update_and_emit (SpiDEController *controller,
430 Accessibility_DeviceEvent mouse_e;
431 gchar event_detail[3];
432 gboolean is_consumed = FALSE;
434 if ((mask_return & mouse_button_mask) !=
435 (mouse_mask_state & mouse_button_mask))
437 int button_number = 0;
438 gboolean is_down = False;
440 if (!(mask_return & Button1Mask) &&
441 (mouse_mask_state & Button1Mask))
443 mouse_mask_state &= ~Button1Mask;
446 else if ((mask_return & Button1Mask) &&
447 !(mouse_mask_state & Button1Mask))
449 mouse_mask_state |= Button1Mask;
453 else if (!(mask_return & Button2Mask) &&
454 (mouse_mask_state & Button2Mask))
456 mouse_mask_state &= ~Button2Mask;
459 else if ((mask_return & Button2Mask) &&
460 !(mouse_mask_state & Button2Mask))
462 mouse_mask_state |= Button2Mask;
466 else if (!(mask_return & Button3Mask) &&
467 (mouse_mask_state & Button3Mask))
469 mouse_mask_state &= ~Button3Mask;
472 else if ((mask_return & Button3Mask) &&
473 !(mouse_mask_state & Button3Mask))
475 mouse_mask_state |= Button3Mask;
479 else if (!(mask_return & Button4Mask) &&
480 (mouse_mask_state & Button4Mask))
482 mouse_mask_state &= ~Button4Mask;
485 else if ((mask_return & Button4Mask) &&
486 !(mouse_mask_state & Button4Mask))
488 mouse_mask_state |= Button4Mask;
492 else if (!(mask_return & Button5Mask) &&
493 (mouse_mask_state & Button5Mask))
495 mouse_mask_state &= ~Button5Mask;
498 else if ((mask_return & Button5Mask) &&
499 !(mouse_mask_state & Button5Mask))
501 mouse_mask_state |= Button5Mask;
507 fprintf (stderr, "Button %d %s\n",
508 button_number, (is_down) ? "Pressed" : "Released");
510 snprintf (event_detail, 3, "%d%c", button_number,
511 (is_down) ? 'p' : 'r');
512 /* TODO: FIXME distinguish between physical and
515 mouse_e.type = (is_down) ?
516 Accessibility_BUTTON_PRESSED_EVENT :
517 Accessibility_BUTTON_RELEASED_EVENT;
518 mouse_e.id = button_number;
519 mouse_e.hw_code = button_number;
520 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
521 mouse_e.timestamp = 0;
522 mouse_e.event_string = "";
523 mouse_e.is_text = FALSE;
525 spi_controller_notify_mouselisteners (controller,
529 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
530 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, x, y);
533 spi_dec_set_unlatch_pending (controller, mask_return);
545 spi_dec_mouse_check (SpiDEController *controller,
546 int *x, int *y, gboolean *moved)
548 int win_x_return,win_y_return;
549 unsigned int mask_return;
550 Window root_return, child_return;
551 Display *display = spi_get_display ();
554 XQueryPointer(display, DefaultRootWindow (display),
555 &root_return, &child_return,
557 &win_x_return, &win_y_return, &mask_return);
559 * Since many clients grab the pointer, and X goes an automatic
560 * pointer grab on mouse-down, we often must detect mouse button events
561 * by polling rather than via a button grab.
562 * The while loop (rather than if) is used since it's possible that
563 * multiple buttons have changed state since we last checked.
565 if (mask_return != mouse_mask_state)
567 while (spi_dec_button_update_and_emit (controller, mask_return));
570 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
572 // TODO: combine these two signals?
573 dbus_uint32_t ix = *x, iy = *y;
574 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Abs", "", ix, iy);
575 ix -= last_mouse_pos->x;
576 iy -= last_mouse_pos->y;
577 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Rel", "", ix, iy);
578 last_mouse_pos->x = *x;
579 last_mouse_pos->y = *y;
591 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
594 dbus_uint32_t d1, d2;
597 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
598 prev_mask, current_mask);
601 /* set bits for the virtual modifiers like NUMLOCK */
602 if (prev_mask & _numlock_physical_mask)
603 prev_mask |= SPI_KEYMASK_NUMLOCK;
604 if (current_mask & _numlock_physical_mask)
605 current_mask |= SPI_KEYMASK_NUMLOCK;
607 d1 = prev_mask & key_modifier_mask;
608 d2 = current_mask & key_modifier_mask;
609 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "Modifiers", "", d1, d2);
613 spi_dec_poll_mouse_moved (gpointer data)
615 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
620 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
622 if ((mask_return & key_modifier_mask) !=
623 (mouse_mask_state & key_modifier_mask))
625 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
626 mouse_mask_state = mask_return;
633 spi_dec_poll_mouse_idle (gpointer data)
635 if (!have_mouse_event_listener && !have_mouse_listener)
637 else if (!spi_dec_poll_mouse_moved (data))
641 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
647 spi_dec_poll_mouse_moving (gpointer data)
649 if (!have_mouse_event_listener && !have_mouse_listener)
651 else if (spi_dec_poll_mouse_moved (data))
655 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
660 #ifdef WE_NEED_UGRAB_MOUSE
662 spi_dec_ungrab_mouse (gpointer data)
664 Display *display = spi_get_display ();
667 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
668 XDefaultRootWindow (spi_get_display ()));
675 spi_dec_init_mouse_listener (SpiDEController *dec)
678 Display *display = spi_get_display ();
682 if (XGrabButton (display, AnyButton, AnyModifier,
683 spi_get_root_window (),
684 True, ButtonPressMask | ButtonReleaseMask,
685 GrabModeSync, GrabModeAsync, None, None) != Success) {
687 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
691 XSync (display, False);
693 fprintf (stderr, "mouse buttons grabbed\n");
700 * Eventually we can use this to make the marshalling of mask types
701 * more sane, but for now we just use this to detect
702 * the use of 'virtual' masks such as numlock and convert them to
703 * system-specific mask values (i.e. ModMask).
706 static Accessibility_ControllerEventMask
707 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
709 Accessibility_ControllerEventMask tmp_mask;
710 gboolean has_numlock;
712 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
716 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
717 tmp_mask |= _numlock_physical_mask;
723 static DEControllerKeyListener *
724 spi_dec_key_listener_new (const char *bus_name,
727 const Accessibility_ControllerEventMask mask,
728 const dbus_uint32_t types,
729 const Accessibility_EventListenerMode *mode)
731 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
732 key_listener->listener.bus_name = g_strdup(bus_name);
733 key_listener->listener.path = g_strdup(path);
734 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
735 key_listener->keys = keys;
736 key_listener->mask = spi_dec_translate_mask (mask);
737 key_listener->listener.types = types;
740 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
741 memcpy(key_listener->mode, mode, sizeof(*mode));
744 key_listener->mode = NULL;
747 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
748 (unsigned int) key_listener->mask,
749 (int) (mode ? mode->global : 0),
750 (void *) key_listener->keys,
751 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
757 static DEControllerListener *
758 spi_dec_listener_new (const char *bus_name,
762 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
763 listener->bus_name = g_strdup(bus_name);
764 listener->path = g_strdup(path);
765 listener->type = SPI_DEVICE_TYPE_MOUSE;
766 listener->types = types;
770 static DEControllerListener *
771 spi_listener_clone (DEControllerListener *listener)
773 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
774 clone->bus_name = g_strdup (listener->bus_name);
775 clone->path = g_strdup (listener->path);
776 clone->type = listener->type;
777 clone->types = listener->types;
781 static GSList *keylist_clone (GSList *s)
786 for (l = s; l; l = g_slist_next(l))
788 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
791 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
792 kd->keycode = kds->keycode;
793 kd->keysym = kds->keysym;
794 kd->keystring = g_strdup(kds->keystring);
795 d = g_slist_append(d, kd);
801 static DEControllerKeyListener *
802 spi_key_listener_clone (DEControllerKeyListener *key_listener)
804 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
805 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
806 clone->listener.path = g_strdup (key_listener->listener.path);
807 clone->listener.type = SPI_DEVICE_TYPE_KBD;
808 clone->keys = keylist_clone (key_listener->keys);
809 clone->mask = key_listener->mask;
810 clone->listener.types = key_listener->listener.types;
811 if (key_listener->mode)
813 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
814 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
821 static void keylist_free(GSList *keys)
825 for (l = keys; l; l = g_slist_next(l))
827 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
828 g_free(kd->keystring);
835 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
837 keylist_free(key_listener->keys);
838 if (key_listener->mode) g_free(key_listener->mode);
839 g_free (key_listener);
843 spi_key_listener_clone_free (DEControllerKeyListener *clone)
845 spi_key_listener_data_free (clone);
849 spi_listener_clone_free (DEControllerListener *clone)
851 g_free (clone->path);
852 g_free (clone->bus_name);
857 spi_dec_listener_free (DEControllerListener *listener)
859 g_free (listener->bus_name);
860 g_free (listener->path);
861 if (listener->type == SPI_DEVICE_TYPE_KBD)
862 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
866 _register_keygrab (SpiDEController *controller,
867 DEControllerGrabMask *grab_mask)
871 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
872 spi_grab_mask_compare_values);
875 DEControllerGrabMask *cur_mask = l->data;
877 cur_mask->ref_count++;
878 if (cur_mask->pending_remove)
880 cur_mask->pending_remove = FALSE;
885 controller->keygrabs_list =
886 g_list_prepend (controller->keygrabs_list,
887 spi_grab_mask_clone (grab_mask));
892 _deregister_keygrab (SpiDEController *controller,
893 DEControllerGrabMask *grab_mask)
897 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
898 spi_grab_mask_compare_values);
902 DEControllerGrabMask *cur_mask = l->data;
904 cur_mask->ref_count--;
905 if (cur_mask->ref_count <= 0)
907 cur_mask->pending_remove = TRUE;
913 handle_keygrab (SpiDEController *controller,
914 DEControllerKeyListener *key_listener,
915 void (*process_cb) (SpiDEController *controller,
916 DEControllerGrabMask *grab_mask))
918 DEControllerGrabMask grab_mask = { 0 };
920 grab_mask.mod_mask = key_listener->mask;
921 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
923 grab_mask.key_val = AnyKey;
925 fprintf (stderr, "AnyKey grab!");
927 process_cb (controller, &grab_mask);
933 for (l = key_listener->keys; l; l = g_slist_next(l))
935 Accessibility_KeyDefinition *keydef = l->data;
936 long int key_val = keydef->keysym;
937 /* X Grabs require keycodes, not keysyms */
938 if (keydef->keystring && keydef->keystring[0])
940 key_val = XStringToKeysym(keydef->keystring);
944 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
948 key_val = keydef->keycode;
950 grab_mask.key_val = key_val;
951 process_cb (controller, &grab_mask);
957 spi_controller_register_global_keygrabs (SpiDEController *controller,
958 DEControllerKeyListener *key_listener)
960 handle_keygrab (controller, key_listener, _register_keygrab);
961 if (controller->xevie_display == NULL)
962 return spi_controller_update_key_grabs (controller, NULL);
968 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
969 DEControllerKeyListener *key_listener)
971 handle_keygrab (controller, key_listener, _deregister_keygrab);
972 if (controller->xevie_display == NULL)
973 spi_controller_update_key_grabs (controller, NULL);
977 spi_controller_register_device_listener (SpiDEController *controller,
978 DEControllerListener *listener)
980 DEControllerKeyListener *key_listener;
982 switch (listener->type) {
983 case SPI_DEVICE_TYPE_KBD:
984 key_listener = (DEControllerKeyListener *) listener;
986 controller->key_listeners = g_list_prepend (controller->key_listeners,
988 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
989 if (key_listener->mode->global)
991 return spi_controller_register_global_keygrabs (controller, key_listener);
996 case SPI_DEVICE_TYPE_MOUSE:
997 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
998 if (!have_mouse_listener)
1000 have_mouse_listener = TRUE;
1001 if (!have_mouse_event_listener)
1002 g_timeout_add (100, spi_dec_poll_mouse_idle, controller->registry);
1004 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
1013 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
1014 SpiRegistry *registry,
1015 DEControllerListener *listener,
1016 const Accessibility_DeviceEvent *key_event)
1018 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
1020 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
1023 dbus_bool_t consumed = FALSE;
1025 dbus_error_init(&error);
1026 if (spi_dbus_marshal_deviceEvent(message, key_event))
1028 // TODO: Evaluate performance: perhaps rework this whole architecture
1029 // to avoid blocking calls
1030 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
1034 dbus_error_init(&error);
1035 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1036 dbus_message_unref(reply);
1039 dbus_message_unref(message);
1044 spi_controller_notify_mouselisteners (SpiDEController *controller,
1045 const Accessibility_DeviceEvent *event)
1048 GSList *notify = NULL, *l2;
1049 GList **listeners = &controller->mouse_listeners;
1050 gboolean is_consumed;
1051 #ifdef SPI_KEYEVENT_DEBUG
1052 gboolean found = FALSE;
1059 for (l = *listeners; l; l = l->next)
1061 DEControllerListener *listener = l->data;
1063 if (spi_eventtype_seq_contains_event (listener->types, event))
1065 /* we clone (don't dup) the listener, to avoid refcount inc. */
1066 notify = g_slist_prepend (notify,
1067 spi_listener_clone (listener));
1068 #ifdef SPI_KEYEVENT_DEBUG
1074 #ifdef SPI_KEYEVENT_DEBUG
1077 g_print ("no match for event\n");
1081 is_consumed = FALSE;
1082 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1084 DEControllerListener *listener = l2->data;
1086 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1088 spi_listener_clone_free ((DEControllerListener *) l2->data);
1091 for (; l2; l2 = l2->next)
1093 DEControllerListener *listener = l2->data;
1094 spi_listener_clone_free (listener);
1095 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1098 g_slist_free (notify);
1101 if (is_consumed) g_message ("consumed\n");
1107 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1110 Accessibility_DeviceEvent mouse_e;
1111 gchar event_detail[3];
1112 gboolean is_consumed = FALSE;
1113 gboolean xkb_mod_unlatch_occurred;
1114 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1115 dbus_uint32_t ix, iy;
1117 int button = xbutton_event->button;
1119 unsigned int mouse_button_state = xbutton_event->state;
1124 mouse_button_state |= Button1Mask;
1127 mouse_button_state |= Button2Mask;
1130 mouse_button_state |= Button3Mask;
1133 mouse_button_state |= Button4Mask;
1136 mouse_button_state |= Button5Mask;
1140 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1141 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1144 fprintf (stderr, "mouse button %d %s (%x)\n",
1145 xbutton_event->button,
1146 (xevent->type == ButtonPress) ? "Press" : "Release",
1147 mouse_button_state);
1149 snprintf (event_detail, 3, "%d%c", button,
1150 (xevent->type == ButtonPress) ? 'p' : 'r');
1152 /* TODO: FIXME distinguish between physical and logical buttons */
1153 mouse_e.type = (xevent->type == ButtonPress) ?
1154 Accessibility_BUTTON_PRESSED_EVENT :
1155 Accessibility_BUTTON_RELEASED_EVENT;
1156 mouse_e.id = button;
1157 mouse_e.hw_code = button;
1158 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1159 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1160 mouse_e.event_string = "";
1161 mouse_e.is_text = FALSE;
1162 if ((mouse_button_state & mouse_button_mask) !=
1163 (mouse_mask_state & mouse_button_mask))
1165 if ((mouse_mask_state & key_modifier_mask) !=
1166 (mouse_button_state & key_modifier_mask))
1167 spi_dec_emit_modifier_event (controller,
1168 mouse_mask_state, mouse_button_state);
1169 mouse_mask_state = mouse_button_state;
1171 spi_controller_notify_mouselisteners (controller, &mouse_e);
1172 ix = last_mouse_pos->x;
1173 iy = last_mouse_pos->y;
1174 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, ix, iy);
1177 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1178 xevent->type == ButtonRelease);
1180 /* if client wants to consume this event, and XKB latch state was
1181 * unset by this button event, we reset it
1183 if (is_consumed && xkb_mod_unlatch_occurred)
1184 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1186 XAllowEvents (spi_get_display (),
1187 (is_consumed) ? SyncPointer : ReplayPointer,
1192 global_filter_fn (XEvent *xevent, void *data)
1194 SpiDEController *controller;
1195 DEControllerPrivateData *priv;
1196 Display *display = spi_get_display ();
1197 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1198 priv = (DEControllerPrivateData *)
1199 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1201 if (xevent->type == MappingNotify)
1204 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1206 if (controller->xevie_display == NULL)
1208 gboolean is_consumed;
1211 spi_device_event_controller_forward_key_event (controller, xevent);
1218 n_events = XPending (display);
1220 #ifdef SPI_KEYEVENT_DEBUG
1221 g_print ("Number of events pending: %d\n", n_events);
1223 for (i = 0; i < n_events; i++)
1225 XNextEvent (display, &next_event);
1226 if (next_event.type != KeyPress &&
1227 next_event.type != KeyRelease)
1228 g_warning ("Unexpected event type %d in queue", next_event.type);
1231 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1233 XUngrabKeyboard (display, CurrentTime);
1237 if (xevent->type == KeyPress)
1238 wait_for_release_event (xevent, controller);
1239 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1245 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1247 spi_device_event_controller_forward_mouse_event (controller, xevent);
1249 if (xevent->type == priv->xkb_base_event_code)
1251 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1252 /* ugly but probably necessary...*/
1253 XSynchronize (display, TRUE);
1255 if (xkb_ev->xkb_type == XkbStateNotify)
1257 XkbStateNotifyEvent *xkb_snev =
1258 (XkbStateNotifyEvent *) xkb_ev;
1259 /* check the mouse, to catch mouse events grabbed by
1260 * another client; in case we should revert this XKB delatch
1262 if (!priv->pending_xkb_mod_relatch_mask)
1266 spi_dec_mouse_check (controller, &x, &y, &moved);
1268 /* we check again, since the previous call may have
1269 changed this flag */
1270 if (priv->pending_xkb_mod_relatch_mask)
1272 unsigned int feedback_mask;
1273 #ifdef SPI_XKB_DEBUG
1274 fprintf (stderr, "relatching %x\n",
1275 priv->pending_xkb_mod_relatch_mask);
1277 /* temporarily turn off the latch bell, if it's on */
1278 XkbGetControls (display,
1279 XkbAccessXFeedbackMask,
1281 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1282 if (feedback_mask & XkbAX_StickyKeysFBMask)
1284 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1286 priv->xkb_desc->ctrls->ax_options
1287 &= ~(XkbAX_StickyKeysFBMask);
1288 XkbChangeControls (display, priv->xkb_desc, &changes);
1290 /* TODO: account for lock as well as latch */
1291 XkbLatchModifiers (display,
1293 priv->pending_xkb_mod_relatch_mask,
1294 priv->pending_xkb_mod_relatch_mask);
1295 if (feedback_mask & XkbAX_StickyKeysFBMask)
1297 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1299 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1300 XkbChangeControls (display, priv->xkb_desc, &changes);
1302 #ifdef SPI_XKB_DEBUG
1303 fprintf (stderr, "relatched %x\n",
1304 priv->pending_xkb_mod_relatch_mask);
1306 priv->pending_xkb_mod_relatch_mask = 0;
1310 priv->xkb_latch_mask = xkb_snev->latched_mods;
1313 XSynchronize (display, FALSE);
1320 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1322 if (error->error_code == BadAccess)
1324 g_message ("Could not complete key grab: grab already in use.\n");
1325 spi_error_code = BadAccess;
1330 return (*x_default_error_handler) (display, error);
1335 spi_controller_register_with_devices (SpiDEController *controller)
1337 DEControllerPrivateData *priv;
1338 int event_base, error_base, major_version, minor_version;
1340 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1341 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1343 XTestGrabControl (spi_get_display (), True);
1346 /* calls to device-specific implementations and routines go here */
1347 /* register with: keyboard hardware code handler */
1348 /* register with: (translated) keystroke handler */
1350 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1351 &priv->xkb_major_extension_opcode,
1352 &priv->xkb_base_event_code,
1353 &priv->xkb_base_error_code, NULL, NULL);
1357 guint64 reserved = 0;
1358 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1359 XkbSelectEvents (spi_get_display (),
1361 XkbStateNotifyMask, XkbStateNotifyMask);
1362 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1364 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1366 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1368 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1370 /* don't use this one if there's a grab client! */
1372 /* Runtime errors are generated from these functions,
1373 * that are then quashed. Equivalent to:
1380 spi_x_error_trap ();
1381 XGrabKey (spi_get_display (), i, 0,
1382 spi_get_root_window (),
1384 GrabModeSync, GrabModeSync);
1385 XSync (spi_get_display (), TRUE);
1386 XUngrabKey (spi_get_display (), i, 0,
1387 spi_get_root_window ());
1388 if (!spi_x_error_release ())
1398 priv->reserved_keycode = reserved;
1399 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1403 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1404 priv->reserved_keysym = XK_numbersign;
1406 #ifdef SPI_RESERVED_DEBUG
1408 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1409 fprintf (stderr, "%x\n", sym);
1410 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1412 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1417 spi_set_filter (global_filter_fn, controller);
1418 spi_set_events (KeyPressMask | KeyReleaseMask);
1420 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1424 spi_key_set_contains_key (GSList *key_set,
1425 const Accessibility_DeviceEvent *key_event)
1434 g_print ("null key set!\n");
1439 len = g_slist_length (key_set);
1441 if (len == 0) /* special case, means "all keys/any key" */
1444 g_print ("anykey\n");
1449 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1451 Accessibility_KeyDefinition *kd = l->data;
1452 #ifdef SPI_KEYEVENT_DEBUG
1453 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1457 (int) key_event->id,
1458 (int) key_event->hw_code,
1459 key_event->event_string);
1461 if (kd->keysym == (dbus_uint32_t) key_event->id)
1465 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1469 if (key_event->event_string && key_event->event_string[0] &&
1470 !strcmp (kd->keystring, key_event->event_string))
1480 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1481 const Accessibility_DeviceEvent *event)
1483 if (types == 0) /* special case, means "all events/any event" */
1488 return (types & (1 << event->type));
1492 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1493 DEControllerKeyListener *listener,
1494 dbus_bool_t is_system_global)
1496 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1497 spi_key_set_contains_key (listener->keys, key_event) &&
1498 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1499 (is_system_global == listener->mode->global))
1510 spi_controller_notify_keylisteners (SpiDEController *controller,
1511 Accessibility_DeviceEvent *key_event,
1512 dbus_bool_t is_system_global)
1515 GSList *notify = NULL, *l2;
1516 GList **key_listeners = &controller->key_listeners;
1517 gboolean is_consumed;
1524 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1525 if (key_event->modifiers & _numlock_physical_mask)
1526 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1528 for (l = *key_listeners; l; l = l->next)
1530 DEControllerKeyListener *key_listener = l->data;
1532 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1534 /* we clone (don't dup) the listener, to avoid refcount inc. */
1535 notify = g_slist_prepend (notify,
1536 spi_key_listener_clone (key_listener));
1540 #ifdef SPI_KEYEVENT_DEBUG
1543 g_print ("no match for event\n");
1547 is_consumed = FALSE;
1548 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1550 DEControllerKeyListener *key_listener = l2->data;
1552 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1553 key_listener->mode->preemptive;
1555 spi_key_listener_clone_free (key_listener);
1558 for (; l2; l2 = l2->next)
1560 DEControllerKeyListener *key_listener = l2->data;
1561 spi_key_listener_clone_free (key_listener);
1562 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1565 g_slist_free (notify);
1568 if (is_consumed) g_message ("consumed\n");
1574 spi_clear_error_state (void)
1576 gboolean retval = spi_error_code != 0;
1581 static Accessibility_DeviceEvent
1582 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1584 Accessibility_DeviceEvent key_event;
1586 const int cbuf_bytes = 20;
1590 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1591 key_event.id = (dbus_int32_t)(keysym);
1592 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1593 if (((XEvent *) x_key_event)->type == KeyPress)
1595 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1599 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1601 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1602 key_event.is_text = FALSE;
1606 key_event.event_string = g_strdup ("space");
1609 key_event.event_string = g_strdup ("Tab");
1612 key_event.event_string = g_strdup ("Backspace");
1615 key_event.event_string = g_strdup ("Return");
1618 key_event.event_string = g_strdup ("Home");
1621 key_event.event_string = g_strdup ("Page_Down");
1624 key_event.event_string = g_strdup ("Page_Up");
1627 key_event.event_string = g_strdup ("F1");
1630 key_event.event_string = g_strdup ("F2");
1633 key_event.event_string = g_strdup ("F3");
1636 key_event.event_string = g_strdup ("F4");
1639 key_event.event_string = g_strdup ("F5");
1642 key_event.event_string = g_strdup ("F6");
1645 key_event.event_string = g_strdup ("F7");
1648 key_event.event_string = g_strdup ("F8");
1651 key_event.event_string = g_strdup ("F9");
1654 key_event.event_string = g_strdup ("F10");
1657 key_event.event_string = g_strdup ("F11");
1660 key_event.event_string = g_strdup ("F12");
1663 key_event.event_string = g_strdup ("End");
1666 key_event.event_string = g_strdup ("Escape");
1669 key_event.event_string = g_strdup ("Up");
1672 key_event.event_string = g_strdup ("Down");
1675 key_event.event_string = g_strdup ("Left");
1678 key_event.event_string = g_strdup ("Right");
1684 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1685 key_event.event_string = g_strdup (cbuf);
1686 c = keysym2ucs (keysym);
1687 if (c > 0 && !g_unichar_iscntrl (c))
1689 key_event.is_text = TRUE;
1690 /* incorrect for some composed chars? */
1695 key_event.event_string = g_strdup ("");
1699 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1700 #ifdef SPI_KEYEVENT_DEBUG
1702 char *pressed_str = "pressed";
1703 char *released_str = "released";
1706 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1707 state_ptr = pressed_str;
1709 state_ptr = released_str;
1712 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1713 (unsigned long) keysym,
1715 keysym ? (int) keysym : '*',
1716 (int) x_key_event->state,
1717 key_event.event_string,
1718 key_event.event_string[0],
1719 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1723 fprintf (stderr, "%s%c\n",
1724 (x_key_event->state & Mod1Mask)?"Alt-":"",
1725 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1726 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1727 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1728 #endif /* SPI_DEBUG */
1733 spi_controller_update_key_grabs (SpiDEController *controller,
1734 Accessibility_DeviceEvent *recv)
1737 gboolean update_failed = FALSE;
1738 KeyCode keycode = 0;
1740 g_return_val_if_fail (controller != NULL, FALSE);
1743 * masks known to work with default RH 7.1+:
1744 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1745 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1746 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1747 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1749 * ControlMask grabs are broken, must be in use already
1752 keycode = keycode_for_keysym (controller, recv->id, NULL);
1753 for (l = controller->keygrabs_list; l; l = next)
1756 gboolean re_issue_grab;
1757 DEControllerGrabMask *grab_mask = l->data;
1761 re_issue_grab = recv &&
1762 (recv->modifiers & grab_mask->mod_mask) &&
1763 (grab_mask->key_val == keycode);
1766 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1767 (long int) grab_mask->key_val,
1768 (long int) grab_mask->mod_mask,
1769 grab_mask->pending_add ? '+' : '.',
1770 grab_mask->pending_remove ? '-' : '.',
1771 re_issue_grab ? "re-issue": "");
1776 if (grab_mask->pending_add && grab_mask->pending_remove)
1780 else if (grab_mask->pending_remove)
1783 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1785 XUngrabKey (spi_get_display (),
1787 grab_mask->mod_mask,
1788 spi_get_root_window ());
1792 else if (grab_mask->pending_add || re_issue_grab)
1796 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1798 XGrabKey (spi_get_display (),
1800 grab_mask->mod_mask,
1801 spi_get_root_window (),
1805 XSync (spi_get_display (), False);
1806 update_failed = spi_clear_error_state ();
1807 if (update_failed) {
1808 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1813 grab_mask->pending_add = FALSE;
1814 grab_mask->pending_remove = FALSE;
1818 g_assert (grab_mask->ref_count <= 0);
1820 controller->keygrabs_list = g_list_delete_link (
1821 controller->keygrabs_list, l);
1823 spi_grab_mask_free (grab_mask);
1828 return ! update_failed;
1832 * Implemented GObject::finalize
1835 spi_device_event_controller_object_finalize (GObject *object)
1837 SpiDEController *controller;
1838 DEControllerPrivateData *private;
1839 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1840 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1842 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1844 /* disconnect any special listeners, get rid of outstanding keygrabs */
1845 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1848 if (controller->xevie_display != NULL)
1850 XevieEnd(controller->xevie_display);
1851 #ifdef SPI_KEYEVENT_DEBUG
1852 printf("XevieEnd(dpy) finished \n");
1857 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1858 if (private->xkb_desc)
1859 XkbFreeKeyboard (private->xkb_desc, 0, True);
1861 parent_class->finalize (object);
1865 * DBus Accessibility::DEController::RegisterKeystrokeListener
1866 * method implementation
1868 static DBusMessage *
1869 impl_register_keystroke_listener (DBusConnection *bus,
1870 DBusMessage *message,
1873 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1874 DEControllerKeyListener *dec_listener;
1875 DBusMessageIter iter, iter_array;
1877 GSList *keys = NULL;
1878 dbus_int32_t mask, type;
1879 Accessibility_EventListenerMode *mode;
1881 DBusMessage *reply = NULL;
1884 dbus_message_iter_init(message, &iter);
1885 // TODO: verify type signature
1886 dbus_message_iter_get_basic(&iter, &path);
1887 dbus_message_iter_next(&iter);
1888 dbus_message_iter_recurse(&iter, &iter_array);
1889 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1891 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1892 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))
1896 kd->keystring = g_strdup (keystring);
1897 keys = g_slist_append(keys, kd);
1899 dbus_message_iter_next(&iter);
1900 dbus_message_iter_get_basic(&iter, &mask);
1901 dbus_message_iter_next(&iter);
1902 if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
1903 dbus_message_iter_get_basic(&iter, &type);
1906 dbus_message_iter_recurse(&iter, &iter_array);
1907 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1910 dbus_message_iter_get_basic (&iter_array, &t);
1912 dbus_message_iter_next (&iter_array);
1914 dbus_message_iter_next (&iter_array);
1916 dbus_message_iter_next(&iter);
1917 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1920 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);
1923 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1924 dbus_message_get_sender(message), path, (unsigned long) mask);
1926 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1927 ret = spi_controller_register_device_listener (
1928 controller, (DEControllerListener *) dec_listener);
1929 reply = dbus_message_new_method_return (message);
1932 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1938 * DBus Accessibility::DEController::RegisterDeviceEventListener
1939 * method implementation
1941 static DBusMessage *
1942 impl_register_device_event_listener (DBusConnection *bus,
1943 DBusMessage *message,
1946 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1947 DEControllerListener *dec_listener;
1950 dbus_int32_t event_types;
1952 DBusMessage *reply = NULL;
1954 dbus_error_init(&error);
1955 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1957 return invalid_arguments_error (message);
1959 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1960 ret = spi_controller_register_device_listener (
1961 controller, (DEControllerListener *) dec_listener);
1962 reply = dbus_message_new_method_return (message);
1965 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1971 DBusConnection *bus;
1972 DEControllerListener *listener;
1973 } RemoveListenerClosure;
1975 static SpiReEntrantContinue
1976 remove_listener_cb (GList * const *list,
1979 DEControllerListener *listener = (*list)->data;
1980 RemoveListenerClosure *ctx = user_data;
1982 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1983 !strcmp(ctx->listener->path, listener->path))
1985 spi_re_entrant_list_delete_link (list);
1986 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1987 spi_dec_listener_free (listener);
1990 return SPI_RE_ENTRANT_CONTINUE;
1993 static SpiReEntrantContinue
1994 copy_key_listener_cb (GList * const *list,
1997 DEControllerKeyListener *key_listener = (*list)->data;
1998 RemoveListenerClosure *ctx = user_data;
2000 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
2001 !strcmp(ctx->listener->path, key_listener->listener.path))
2003 /* TODO: FIXME aggregate keys in case the listener is registered twice */
2004 DEControllerKeyListener *ctx_key_listener =
2005 (DEControllerKeyListener *) ctx->listener;
2006 keylist_free (ctx_key_listener->keys);
2007 ctx_key_listener->keys = keylist_clone(key_listener->keys);
2010 return SPI_RE_ENTRANT_CONTINUE;
2014 spi_controller_deregister_device_listener (SpiDEController *controller,
2015 DEControllerListener *listener)
2017 RemoveListenerClosure ctx;
2019 ctx.bus = controller->bus;
2020 ctx.listener = listener;
2022 spi_re_entrant_list_foreach (&controller->mouse_listeners,
2023 remove_listener_cb, &ctx);
2024 if (!controller->mouse_listeners)
2025 have_mouse_listener = FALSE;
2029 spi_deregister_controller_key_listener (SpiDEController *controller,
2030 DEControllerKeyListener *key_listener)
2032 RemoveListenerClosure ctx;
2034 ctx.bus = controller->bus;
2035 ctx.listener = (DEControllerListener *) key_listener;
2037 /* special case, copy keyset from existing controller list entry */
2038 if (g_slist_length(key_listener->keys) == 0)
2040 spi_re_entrant_list_foreach (&controller->key_listeners,
2041 copy_key_listener_cb, &ctx);
2044 spi_controller_deregister_global_keygrabs (controller, key_listener);
2046 spi_re_entrant_list_foreach (&controller->key_listeners,
2047 remove_listener_cb, &ctx);
2052 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
2056 for (l = controller->mouse_listeners; l; l = tmp)
2058 DEControllerListener *listener = l->data;
2060 if (!strcmp (listener->bus_name, bus_name))
2062 spi_controller_deregister_device_listener (controller, listener);
2065 for (l = controller->key_listeners; l; l = tmp)
2067 DEControllerKeyListener *key_listener = l->data;
2069 if (!strcmp (key_listener->listener.bus_name, bus_name))
2071 spi_deregister_controller_key_listener (controller, key_listener);
2077 * DBus Accessibility::DEController::DeregisterKeystrokeListener
2078 * method implementation
2080 static DBusMessage *
2081 impl_deregister_keystroke_listener (DBusConnection *bus,
2082 DBusMessage *message,
2085 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2086 DEControllerKeyListener *key_listener;
2087 DBusMessageIter iter, iter_array;
2089 GSList *keys = NULL;
2090 dbus_int32_t mask, type;
2091 DBusMessage *reply = NULL;
2093 dbus_message_iter_init(message, &iter);
2094 // TODO: verify type signature
2095 dbus_message_iter_get_basic(&iter, &path);
2096 dbus_message_iter_next(&iter);
2097 dbus_message_iter_recurse(&iter, &iter_array);
2098 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2100 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2103 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))
2107 kd->keystring = g_strdup (keystring);
2108 keys = g_slist_append(keys, kd);
2110 dbus_message_iter_next(&iter);
2111 dbus_message_iter_get_basic(&iter, &mask);
2112 dbus_message_iter_next(&iter);
2113 dbus_message_iter_get_basic(&iter, &type);
2114 dbus_message_iter_next(&iter);
2115 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2116 #ifdef SPI_DEREGISTER_DEBUG
2117 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2118 (void *) l, (unsigned long) mask->value);
2121 spi_deregister_controller_key_listener (controller, key_listener);
2123 spi_dec_listener_free ((DEControllerListener *) key_listener);
2124 reply = dbus_message_new_method_return (message);
2129 * DBus Accessibility::DEController::DeregisterDeviceEventListener
2130 * method implementation
2132 static DBusMessage *
2133 impl_deregister_device_event_listener (DBusConnection *bus,
2134 DBusMessage *message,
2137 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2138 DEControllerListener *listener;
2141 dbus_int32_t event_types;
2142 DBusMessage *reply = NULL;
2144 dbus_error_init(&error);
2145 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2147 return invalid_arguments_error (message);
2149 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2150 spi_controller_deregister_device_listener (
2151 controller, listener);
2152 reply = dbus_message_new_method_return (message);
2156 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2158 unsigned int retval = 0;
2159 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2160 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2162 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2163 retval = XkbGetSlowKeysDelay (spi_get_display (),
2164 XkbUseCoreKbd, &bounce_delay);
2166 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2168 Status s = XkbGetControls (spi_get_display (),
2169 XkbAllControlsMask, priv->xkb_desc);
2172 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2173 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2178 #ifdef SPI_XKB_DEBUG
2179 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2184 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2186 unsigned int retval = 0;
2187 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2188 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2190 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2191 retval = XkbGetBounceKeysDelay (spi_get_display (),
2192 XkbUseCoreKbd, &bounce_delay);
2194 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2196 Status s = XkbGetControls (spi_get_display (),
2197 XkbAllControlsMask, priv->xkb_desc);
2200 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2201 retval = priv->xkb_desc->ctrls->debounce_delay;
2206 #ifdef SPI_XKB_DEBUG
2207 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2213 dec_synth_keycode_press (SpiDEController *controller,
2214 unsigned int keycode)
2216 unsigned int time = CurrentTime;
2217 unsigned int bounce_delay;
2218 unsigned int elapsed_msec;
2220 DEControllerPrivateData *priv =
2221 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2222 spi_dec_private_quark);
2223 if (keycode == priv->last_release_keycode)
2225 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2228 gettimeofday (&tv, NULL);
2230 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2231 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2232 #ifdef SPI_XKB_DEBUG
2233 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2234 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2236 #ifdef THIS_IS_BROKEN
2237 if (elapsed_msec < bounce_delay)
2238 time = bounce_delay - elapsed_msec + 1;
2240 time = bounce_delay + 10;
2241 /* fudge for broken XTest */
2243 #ifdef SPI_XKB_DEBUG
2244 fprintf (stderr, "waiting %d ms\n", time);
2248 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2249 priv->last_press_keycode = keycode;
2250 XFlush (spi_get_display ());
2251 XSync (spi_get_display (), False);
2252 gettimeofday (&priv->last_press_time, NULL);
2257 dec_synth_keycode_release (SpiDEController *controller,
2258 unsigned int keycode)
2260 unsigned int time = CurrentTime;
2261 unsigned int slow_delay;
2262 unsigned int elapsed_msec;
2264 DEControllerPrivateData *priv =
2265 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2266 spi_dec_private_quark);
2267 if (keycode == priv->last_press_keycode)
2269 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2272 gettimeofday (&tv, NULL);
2274 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2275 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2276 #ifdef SPI_XKB_DEBUG
2277 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2278 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2280 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2281 if (elapsed_msec < slow_delay)
2282 time = slow_delay - elapsed_msec + 1;
2284 time = slow_delay + 10;
2285 /* our XTest seems broken, we have to add slop as above */
2287 #ifdef SPI_XKB_DEBUG
2288 fprintf (stderr, "waiting %d ms\n", time);
2292 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2293 priv->last_release_keycode = keycode;
2294 XSync (spi_get_display (), False);
2295 gettimeofday (&priv->last_release_time, NULL);
2300 dec_get_modifier_state (SpiDEController *controller)
2302 return mouse_mask_state;
2306 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2308 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2309 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2311 if (priv->have_xkb) {
2312 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2313 modifiers, modifiers);
2316 for (mod_index=0;mod_index<8;mod_index++)
2317 if (modifiers & (1<<mod_index))
2318 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2324 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2326 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2327 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2329 if (priv->have_xkb) {
2330 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2334 for (mod_index=0;mod_index<8;mod_index++)
2335 if (modifiers & (1<<mod_index))
2336 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2342 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2344 return ucs2keysym ((long) unichar);
2348 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2350 KeyCode key_synth_code;
2351 unsigned int modifiers, synth_mods, lock_mods;
2353 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2355 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2357 /* TODO: set the modifiers accordingly! */
2358 modifiers = dec_get_modifier_state (controller);
2359 /* side-effect; we may unset mousebutton modifiers here! */
2362 if (synth_mods != modifiers) {
2363 lock_mods = synth_mods & ~modifiers;
2364 dec_lock_modifiers (controller, lock_mods);
2366 dec_synth_keycode_press (controller, key_synth_code);
2367 dec_synth_keycode_release (controller, key_synth_code);
2369 if (synth_mods != modifiers)
2370 dec_unlock_modifiers (controller, lock_mods);
2376 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2378 /* probably we need to create and inject an XIM handler eventually. */
2379 /* for now, try to match the string to existing
2380 * keycode+modifier states.
2384 gunichar unichar = 0;
2386 gboolean retval = TRUE;
2389 maxlen = strlen (keystring) + 1;
2390 keysyms = g_new0 (KeySym, maxlen);
2391 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2396 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2398 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2403 mbytes = g_unichar_to_utf8 (unichar, bytes);
2404 bytes[mbytes] = '\0';
2406 fprintf (stderr, "[unichar %s]", bytes);
2408 keysym = dec_keysym_for_unichar (controller, unichar);
2409 if (keysym == NoSymbol) {
2411 fprintf (stderr, "no keysym for %s", bytes);
2416 keysyms[i++] = keysym;
2417 keystring = g_utf8_next_char (keystring);
2420 XSynchronize (spi_get_display (), TRUE);
2421 for (i = 0; keysyms[i]; ++i) {
2422 if (!dec_synth_keysym (controller, keysyms[i])) {
2424 fprintf (stderr, "could not synthesize %c\n",
2431 XSynchronize (spi_get_display (), FALSE);
2440 * DBus Accessibility::DEController::RegisterKeystrokeListener
2441 * method implementation
2443 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2445 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2447 dbus_int32_t keycode;
2449 dbus_uint32_t synth_type;
2452 DEControllerPrivateData *priv;
2453 DBusMessage *reply = NULL;
2455 dbus_error_init(&error);
2456 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2458 return invalid_arguments_error (message);
2462 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2463 (long) keycode, (int) synth_type);
2465 /* TODO: hide/wrap/remove X dependency */
2468 * TODO: when initializing, query for XTest extension before using,
2469 * and fall back to XSendEvent() if XTest is not available.
2472 spi_x_error_trap ();
2474 priv = (DEControllerPrivateData *)
2475 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2477 if (!priv->have_xkb && xmkeymap==NULL) {
2478 xmkeymap = XGetModifierMapping(spi_get_display ());
2483 case Accessibility_KEY_PRESS:
2484 dec_synth_keycode_press (controller, keycode);
2486 case Accessibility_KEY_PRESSRELEASE:
2487 dec_synth_keycode_press (controller, keycode);
2488 case Accessibility_KEY_RELEASE:
2489 dec_synth_keycode_release (controller, keycode);
2491 case Accessibility_KEY_SYM:
2492 #ifdef SPI_XKB_DEBUG
2493 fprintf (stderr, "KeySym synthesis\n");
2496 * note: we are using long for 'keycode'
2497 * in our arg list; it can contain either
2498 * a keycode or a keysym.
2500 dec_synth_keysym (controller, (KeySym) keycode);
2502 case Accessibility_KEY_STRING:
2503 if (!dec_synth_keystring (controller, keystring))
2504 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2508 if (synth_type == Accessibility_KEY_SYM) {
2512 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2514 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2516 spi_dec_clear_unlatch_pending (controller);
2518 reply = dbus_message_new_method_return (message);
2522 /* Accessibility::DEController::GenerateMouseEvent */
2523 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2529 DBusMessage *reply = NULL;
2531 gboolean err = FALSE;
2532 Display *display = spi_get_display ();
2534 dbus_error_init (&error);
2535 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2537 return invalid_arguments_error (message);
2541 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2542 eventName, (long int) x, (long int) y);
2544 switch (eventName[0])
2547 switch (eventName[1])
2549 /* TODO: check number of buttons before parsing */
2570 if (x != -1 && y != -1)
2572 XTestFakeMotionEvent (display, DefaultScreen (display),
2575 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2576 if (eventName[2] == 'c')
2577 XTestFakeButtonEvent (display, button, FALSE, 1);
2578 else if (eventName[2] == 'd')
2580 XTestFakeButtonEvent (display, button, FALSE, 1);
2581 XTestFakeButtonEvent (display, button, TRUE, 2);
2582 XTestFakeButtonEvent (display, button, FALSE, 3);
2586 case 'r': /* relative motion */
2587 XTestFakeRelativeMotionEvent (display, x, y, 0);
2589 case 'a': /* absolute motion */
2590 XTestFakeMotionEvent (display, DefaultScreen (display),
2594 reply = dbus_message_new_method_return (message);
2598 /* Accessibility::DEController::NotifyListenersSync */
2599 static DBusMessage *
2600 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2602 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2603 Accessibility_DeviceEvent event;
2605 DBusMessage *reply = NULL;
2607 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2609 return invalid_arguments_error (message);
2612 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2613 controller, (int) event.id);
2615 ret = spi_controller_notify_keylisteners (controller,
2616 (Accessibility_DeviceEvent *)
2619 reply = dbus_message_new_method_return (message);
2622 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2627 static DBusMessage *
2628 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2630 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2631 Accessibility_DeviceEvent event;
2632 DBusMessage *reply = NULL;
2634 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2636 return invalid_arguments_error (message);
2639 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2640 controller, (int) event.id);
2642 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2644 reply = dbus_message_new_method_return (message);
2649 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2651 GObjectClass * object_class = (GObjectClass *) klass;
2653 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2655 object_class->finalize = spi_device_event_controller_object_finalize;
2657 if (!spi_dec_private_quark)
2658 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2662 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2668 handle_io (GIOChannel *source,
2669 GIOCondition condition,
2672 SpiDEController *controller = (SpiDEController *) data;
2673 gboolean is_consumed = FALSE;
2676 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2678 if (ev.type == KeyPress || ev.type == KeyRelease)
2679 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2682 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2687 #endif /* HAVE_XEVIE */
2690 spi_device_event_controller_init (SpiDEController *device_event_controller)
2692 spi_events_init (spi_get_display());
2696 #endif /* HAVE_XEVIE */
2698 DEControllerPrivateData *private;
2699 device_event_controller->key_listeners = NULL;
2700 device_event_controller->mouse_listeners = NULL;
2701 device_event_controller->keygrabs_list = NULL;
2702 device_event_controller->xevie_display = NULL;
2705 device_event_controller->xevie_display = XOpenDisplay(NULL);
2707 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2709 #ifdef SPI_KEYEVENT_DEBUG
2710 fprintf (stderr, "XevieStart() success \n");
2712 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2714 fd = ConnectionNumber(device_event_controller->xevie_display);
2715 ioc = g_io_channel_unix_new (fd);
2716 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2717 g_io_channel_unref (ioc);
2721 device_event_controller->xevie_display = NULL;
2722 #ifdef SPI_KEYEVENT_DEBUG
2723 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2726 #endif /* HAVE_XEVIE */
2728 private = g_new0 (DEControllerPrivateData, 1);
2729 gettimeofday (&private->last_press_time, NULL);
2730 gettimeofday (&private->last_release_time, NULL);
2731 g_object_set_qdata (G_OBJECT (device_event_controller),
2732 spi_dec_private_quark,
2734 spi_controller_register_with_devices (device_event_controller);
2738 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2739 const XEvent *event)
2741 Accessibility_DeviceEvent key_event;
2744 g_assert (event->type == KeyPress || event->type == KeyRelease);
2746 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2748 if (controller->xevie_display == NULL)
2749 spi_controller_update_key_grabs (controller, &key_event);
2751 /* relay to listeners, and decide whether to consume it or not */
2752 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2753 g_free(key_event.event_string);
2759 is_key_released (KeyCode code)
2764 XQueryKeymap (spi_get_display (), keys);
2765 down = BIT (keys, code);
2770 check_release (gpointer data)
2773 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2774 KeyCode code = event->hw_code;
2776 released = is_key_released (code);
2780 check_release_handler = 0;
2781 event->type = Accessibility_KEY_RELEASED_EVENT;
2782 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2784 return (released == 0);
2787 static void wait_for_release_event (XEvent *event,
2788 SpiDEController *controller)
2790 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2791 saved_controller = controller;
2792 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2795 /*---------------------------------------------------------------------------*/
2797 static const char *introspection_header =
2798 "<?xml version=\"1.0\"?>\n";
2800 static const char *introspection_node_element =
2801 "<node name=\"%s\">\n";
2803 static const char *introspection_footer =
2806 static DBusMessage *
2807 impl_Introspect (DBusConnection * bus,
2808 DBusMessage * message, void *user_data)
2814 const gchar *pathstr = SPI_DBUS_PATH_DEC;
2818 output = g_string_new(introspection_header);
2820 g_string_append_printf(output, introspection_node_element, pathstr);
2822 g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
2824 g_string_append(output, introspection_footer);
2825 final = g_string_free(output, FALSE);
2827 reply = dbus_message_new_method_return (message);
2828 dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
2834 /*---------------------------------------------------------------------------*/
2836 static DBusHandlerResult
2837 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2839 DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2841 const gchar *iface = dbus_message_get_interface (message);
2842 const gchar *member = dbus_message_get_member (message);
2843 const gint type = dbus_message_get_type (message);
2845 DBusMessage *reply = NULL;
2847 /* Check for basic reasons not to handle */
2848 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2851 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2853 if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
2855 result = DBUS_HANDLER_RESULT_HANDLED;
2856 if (!strcmp (member, "RegisterKeystrokeListener"))
2857 reply = impl_register_keystroke_listener (bus, message, user_data);
2858 else if (!strcmp (member, "RegisterDeviceEventListener"))
2859 reply = impl_register_device_event_listener (bus, message, user_data);
2860 else if (!strcmp (member, "DeregisterKeystrokeListener"))
2861 reply = impl_deregister_keystroke_listener (bus, message, user_data);
2862 else if (!strcmp (member, "DeregisterDeviceEventListener"))
2863 reply = impl_deregister_device_event_listener (bus, message, user_data);
2864 else if (!strcmp (member, "GenerateKeyboardEvent"))
2865 reply = impl_generate_keyboard_event (bus, message, user_data);
2866 else if (!strcmp (member, "GenerateMouseEvent"))
2867 reply = impl_generate_mouse_event (bus, message, user_data);
2868 else if (!strcmp (member, "NotifyListenersSync"))
2869 reply = impl_notify_listeners_sync (bus, message, user_data);
2870 else if (!strcmp (member, "NotifyListenersAsync"))
2871 reply = impl_notify_listeners_async (bus, message, user_data);
2873 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2876 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
2878 result = DBUS_HANDLER_RESULT_HANDLED;
2879 if (!strcmp (member, "Introspect"))
2880 reply = impl_Introspect (bus, message, user_data);
2882 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2885 if (result == DBUS_HANDLER_RESULT_HANDLED)
2889 reply = dbus_message_new_method_return (message);
2892 dbus_connection_send (bus, reply, NULL);
2893 dbus_message_unref (reply);
2899 static DBusObjectPathVTable dec_vtable =
2903 NULL, NULL, NULL, NULL
2907 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2909 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2911 dec->registry = g_object_ref (reg);
2914 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2916 spi_dec_init_mouse_listener (dec);
2922 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2924 if (!have_mouse_event_listener)
2926 have_mouse_event_listener = TRUE;
2927 if (!have_mouse_listener)
2928 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
2933 spi_device_event_controller_stop_poll_mouse (void)
2935 have_mouse_event_listener = FALSE;