1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2003 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
38 #include <X11/extensions/XTest.h>
39 #include <X11/XKBlib.h>
42 #include <X11/keysymdef.h>
45 #include <X11/Xproto.h>
47 #include <X11/extensions/Xevie.h>
48 #endif /* HAVE_XEVIE */
52 #include <dbus/dbus.h>
57 #include "de-marshaller.h"
60 #include "deviceeventcontroller.h"
61 #include "reentrant-list.h"
63 KeySym ucs2keysym (long ucs);
64 long keysym2ucs(KeySym keysym);
66 #define CHECK_RELEASE_DELAY 20
67 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
68 static guint check_release_handler = 0;
69 static Accessibility_DeviceEvent pressed_event;
70 static SpiDEController *saved_controller;
71 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
73 /* Our parent Gtk object type */
74 #define PARENT_TYPE G_TYPE_OBJECT
76 /* A pointer to our parent object class */
77 static int spi_error_code = 0;
82 typedef struct _SpiPoint SpiPoint;
83 static SpiPoint last_mouse_pos_static = {0, 0};
84 static SpiPoint *last_mouse_pos = &last_mouse_pos_static;
85 static unsigned int mouse_mask_state = 0;
86 static unsigned int mouse_button_mask =
87 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
88 static unsigned int key_modifier_mask =
89 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
90 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
92 static GQuark spi_dec_private_quark = 0;
93 static XModifierKeymap* xmkeymap = NULL;
95 static gboolean have_mouse_listener = FALSE;
96 static gboolean have_mouse_event_listener = FALSE;
98 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
102 SPI_DEVICE_TYPE_MOUSE,
103 SPI_DEVICE_TYPE_LAST_DEFINED
104 } SpiDeviceTypeCategory;
107 guint ref_count : 30;
108 guint pending_add : 1;
109 guint pending_remove : 1;
111 Accessibility_ControllerEventMask mod_mask;
112 dbus_uint32_t key_val; /* KeyCode */
113 } DEControllerGrabMask;
118 SpiDeviceTypeCategory type;
120 } DEControllerListener;
123 DEControllerListener listener;
126 Accessibility_ControllerEventMask mask;
127 Accessibility_EventListenerMode *mode;
128 } DEControllerKeyListener;
131 unsigned int last_press_keycode;
132 unsigned int last_release_keycode;
133 struct timeval last_press_time;
134 struct timeval last_release_time;
136 int xkb_major_extension_opcode;
137 int xkb_base_event_code;
138 int xkb_base_error_code;
139 unsigned int xkb_latch_mask;
140 unsigned int pending_xkb_mod_relatch_mask;
142 KeyCode reserved_keycode;
143 KeySym reserved_keysym;
144 guint reserved_reset_timeout;
145 } DEControllerPrivateData;
147 static void spi_controller_register_with_devices (SpiDEController *controller);
148 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
149 Accessibility_DeviceEvent *recv);
150 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
151 DEControllerListener *l);
152 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
153 const XEvent *event);
154 static void spi_controller_deregister_device_listener (SpiDEController *controller,
155 DEControllerListener *listener);
156 static void spi_deregister_controller_key_listener (SpiDEController *controller,
157 DEControllerKeyListener *key_listener);
158 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
159 const Accessibility_DeviceEvent *event);
161 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
162 const Accessibility_DeviceEvent *event);
163 static gboolean spi_clear_error_state (void);
164 static gboolean spi_dec_poll_mouse_moved (gpointer data);
165 static gboolean spi_dec_poll_mouse_moving (gpointer data);
166 static gboolean spi_dec_poll_mouse_idle (gpointer data);
168 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
171 invalid_arguments_error (DBusMessage *message)
176 errmsg= g_strdup_printf (
177 "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
178 dbus_message_get_member (message),
179 dbus_message_get_signature (message),
180 dbus_message_get_interface (message));
181 reply = dbus_message_new_error (message,
182 DBUS_ERROR_INVALID_ARGS,
188 /* Private methods */
190 spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
192 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
196 dbus_error_init (&error);
197 dbus_bus_add_match (bus, match, &error);
199 return !dbus_error_is_set (&error);
205 spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
207 char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
211 dbus_error_init (&error);
212 dbus_bus_remove_match (bus, match, &error);
214 return !dbus_error_is_set (&error);
220 keysym_mod_mask (KeySym keysym, KeyCode keycode)
222 /* we really should use XKB and look directly at the keymap */
223 /* this is very inelegant */
224 Display *display = spi_get_display ();
225 unsigned int mods_rtn = 0;
226 unsigned int retval = 0;
229 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
230 (sym_rtn == keysym)) {
233 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
234 (sym_rtn == keysym)) {
237 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
238 (sym_rtn == keysym)) {
241 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
242 (sym_rtn == keysym)) {
245 else if (XkbLookupKeySym (display, keycode,
246 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
247 (sym_rtn == keysym)) {
248 retval = (Mod2Mask | ShiftMask);
250 else if (XkbLookupKeySym (display, keycode,
251 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
252 (sym_rtn == keysym)) {
253 retval = (Mod3Mask | ShiftMask);
255 else if (XkbLookupKeySym (display, keycode,
256 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
257 (sym_rtn == keysym)) {
258 retval = (Mod4Mask | ShiftMask);
266 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
269 Display *dpy = spi_get_display ();
271 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
273 fprintf (stderr, "ERROR getting map\n");
277 if (desc && desc->map)
279 gint offset = desc->map->key_sym_map[keycode].offset;
280 desc->map->syms[offset] = keysym;
284 fprintf (stderr, "Error changing key map: empty server structure\n");
286 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
288 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
289 * would be far preferable.
290 * HOWEVER it does not seem to work using XFree 4.3.
292 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
295 XkbFreeKeyboard (desc, 0, TRUE);
304 spi_dec_reset_reserved (gpointer data)
306 DEControllerPrivateData *priv = data;
307 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
308 priv->reserved_reset_timeout = 0;
313 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
316 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
319 DEControllerPrivateData *priv = (DEControllerPrivateData *)
320 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
321 /* if there's no keycode available, fix it */
322 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
324 keycode = priv->reserved_keycode;
326 * queue a timer to restore the old keycode. Ugly, but required
327 * due to races / asynchronous X delivery.
328 * Long-term fix is to extend the X keymap here instead of replace entries.
330 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
336 *modmask = keysym_mod_mask (keysym, keycode);
340 static DEControllerGrabMask *
341 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
343 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
345 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
347 clone->ref_count = 1;
348 clone->pending_add = TRUE;
349 clone->pending_remove = FALSE;
355 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
361 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
363 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
364 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
372 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
377 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
379 DEControllerPrivateData *priv =
380 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
382 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
383 priv->xkb_latch_mask);
385 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
389 spi_dec_clear_unlatch_pending (SpiDEController *controller)
391 DEControllerPrivateData *priv =
392 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
393 priv->xkb_latch_mask = 0;
396 static void emit(SpiDEController *controller, const char *interface, const char *name, const char *minor, int a1, int a2)
398 DBusMessage *signal = NULL;
399 DBusMessageIter iter, iter_struct, iter_variant;
401 const char *path = SPI_DBUS_PATH_ROOT;
402 const char *bus_name = dbus_bus_get_unique_name (controller->bus);
404 signal = dbus_message_new_signal (path, interface, name);
406 dbus_message_iter_init_append (signal, &iter);
408 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
409 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a1);
410 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a2);
411 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
412 dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
413 dbus_message_iter_close_container (&iter, &iter_variant);
415 dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
417 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
418 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
419 dbus_message_iter_close_container (&iter, &iter_struct);
421 dbus_connection_send (controller->bus, signal, NULL);
425 spi_dec_button_update_and_emit (SpiDEController *controller,
428 Accessibility_DeviceEvent mouse_e;
429 gchar event_detail[3];
430 gboolean is_consumed = FALSE;
432 if ((mask_return & mouse_button_mask) !=
433 (mouse_mask_state & mouse_button_mask))
435 int button_number = 0;
436 gboolean is_down = False;
438 if (!(mask_return & Button1Mask) &&
439 (mouse_mask_state & Button1Mask))
441 mouse_mask_state &= ~Button1Mask;
444 else if ((mask_return & Button1Mask) &&
445 !(mouse_mask_state & Button1Mask))
447 mouse_mask_state |= Button1Mask;
451 else if (!(mask_return & Button2Mask) &&
452 (mouse_mask_state & Button2Mask))
454 mouse_mask_state &= ~Button2Mask;
457 else if ((mask_return & Button2Mask) &&
458 !(mouse_mask_state & Button2Mask))
460 mouse_mask_state |= Button2Mask;
464 else if (!(mask_return & Button3Mask) &&
465 (mouse_mask_state & Button3Mask))
467 mouse_mask_state &= ~Button3Mask;
470 else if ((mask_return & Button3Mask) &&
471 !(mouse_mask_state & Button3Mask))
473 mouse_mask_state |= Button3Mask;
477 else if (!(mask_return & Button4Mask) &&
478 (mouse_mask_state & Button4Mask))
480 mouse_mask_state &= ~Button4Mask;
483 else if ((mask_return & Button4Mask) &&
484 !(mouse_mask_state & Button4Mask))
486 mouse_mask_state |= Button4Mask;
490 else if (!(mask_return & Button5Mask) &&
491 (mouse_mask_state & Button5Mask))
493 mouse_mask_state &= ~Button5Mask;
496 else if ((mask_return & Button5Mask) &&
497 !(mouse_mask_state & Button5Mask))
499 mouse_mask_state |= Button5Mask;
505 fprintf (stderr, "Button %d %s\n",
506 button_number, (is_down) ? "Pressed" : "Released");
508 snprintf (event_detail, 3, "%d%c", button_number,
509 (is_down) ? 'p' : 'r');
510 /* TODO: FIXME distinguish between physical and
513 mouse_e.type = (is_down) ?
514 Accessibility_BUTTON_PRESSED_EVENT :
515 Accessibility_BUTTON_RELEASED_EVENT;
516 mouse_e.id = button_number;
517 mouse_e.hw_code = button_number;
518 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
519 mouse_e.timestamp = 0;
520 mouse_e.event_string = "";
521 mouse_e.is_text = FALSE;
523 spi_controller_notify_mouselisteners (controller,
527 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
528 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, x, y);
531 spi_dec_set_unlatch_pending (controller, mask_return);
543 spi_dec_mouse_check (SpiDEController *controller,
544 int *x, int *y, gboolean *moved)
546 int win_x_return,win_y_return;
547 unsigned int mask_return;
548 Window root_return, child_return;
549 Display *display = spi_get_display ();
552 XQueryPointer(display, DefaultRootWindow (display),
553 &root_return, &child_return,
555 &win_x_return, &win_y_return, &mask_return);
557 * Since many clients grab the pointer, and X goes an automatic
558 * pointer grab on mouse-down, we often must detect mouse button events
559 * by polling rather than via a button grab.
560 * The while loop (rather than if) is used since it's possible that
561 * multiple buttons have changed state since we last checked.
563 if (mask_return != mouse_mask_state)
565 while (spi_dec_button_update_and_emit (controller, mask_return));
568 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
570 // TODO: combine these two signals?
571 dbus_uint32_t ix = *x, iy = *y;
572 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Abs", "", ix, iy);
573 ix -= last_mouse_pos->x;
574 iy -= last_mouse_pos->y;
575 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Rel", "", ix, iy);
576 last_mouse_pos->x = *x;
577 last_mouse_pos->y = *y;
589 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
592 dbus_uint32_t d1, d2;
595 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
596 prev_mask, current_mask);
599 /* set bits for the virtual modifiers like NUMLOCK */
600 if (prev_mask & _numlock_physical_mask)
601 prev_mask |= SPI_KEYMASK_NUMLOCK;
602 if (current_mask & _numlock_physical_mask)
603 current_mask |= SPI_KEYMASK_NUMLOCK;
605 d1 = prev_mask & key_modifier_mask;
606 d2 = current_mask & key_modifier_mask;
607 emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "Modifiers", "", d1, d2);
611 spi_dec_poll_mouse_moved (gpointer data)
613 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
618 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
620 if ((mask_return & key_modifier_mask) !=
621 (mouse_mask_state & key_modifier_mask))
623 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
624 mouse_mask_state = mask_return;
631 spi_dec_poll_mouse_idle (gpointer data)
633 if (!have_mouse_event_listener && !have_mouse_listener)
635 else if (!spi_dec_poll_mouse_moved (data))
639 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
645 spi_dec_poll_mouse_moving (gpointer data)
647 if (!have_mouse_event_listener && !have_mouse_listener)
649 else if (spi_dec_poll_mouse_moved (data))
653 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
658 #ifdef WE_NEED_UGRAB_MOUSE
660 spi_dec_ungrab_mouse (gpointer data)
662 Display *display = spi_get_display ();
665 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
666 XDefaultRootWindow (spi_get_display ()));
673 spi_dec_init_mouse_listener (SpiDEController *dec)
676 Display *display = spi_get_display ();
680 if (XGrabButton (display, AnyButton, AnyModifier,
681 spi_get_root_window (),
682 True, ButtonPressMask | ButtonReleaseMask,
683 GrabModeSync, GrabModeAsync, None, None) != Success) {
685 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
689 XSync (display, False);
691 fprintf (stderr, "mouse buttons grabbed\n");
698 * Eventually we can use this to make the marshalling of mask types
699 * more sane, but for now we just use this to detect
700 * the use of 'virtual' masks such as numlock and convert them to
701 * system-specific mask values (i.e. ModMask).
704 static Accessibility_ControllerEventMask
705 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
707 Accessibility_ControllerEventMask tmp_mask;
708 gboolean has_numlock;
710 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
714 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
715 tmp_mask |= _numlock_physical_mask;
721 static DEControllerKeyListener *
722 spi_dec_key_listener_new (const char *bus_name,
725 const Accessibility_ControllerEventMask mask,
726 const dbus_uint32_t types,
727 const Accessibility_EventListenerMode *mode)
729 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
730 key_listener->listener.bus_name = g_strdup(bus_name);
731 key_listener->listener.path = g_strdup(path);
732 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
733 key_listener->keys = keys;
734 key_listener->mask = spi_dec_translate_mask (mask);
735 key_listener->listener.types = types;
738 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
739 memcpy(key_listener->mode, mode, sizeof(*mode));
742 key_listener->mode = NULL;
745 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
746 (unsigned int) key_listener->mask,
747 (int) (mode ? mode->global : 0),
748 (void *) key_listener->keys,
749 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
755 static DEControllerListener *
756 spi_dec_listener_new (const char *bus_name,
760 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
761 listener->bus_name = g_strdup(bus_name);
762 listener->path = g_strdup(path);
763 listener->type = SPI_DEVICE_TYPE_MOUSE;
764 listener->types = types;
768 static DEControllerListener *
769 spi_listener_clone (DEControllerListener *listener)
771 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
772 clone->bus_name = g_strdup (listener->bus_name);
773 clone->path = g_strdup (listener->path);
774 clone->type = listener->type;
775 clone->types = listener->types;
779 static GSList *keylist_clone (GSList *s)
784 for (l = s; l; l = g_slist_next(l))
786 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
789 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
790 kd->keycode = kds->keycode;
791 kd->keysym = kds->keysym;
792 kd->keystring = g_strdup(kds->keystring);
793 d = g_slist_append(d, kd);
799 static DEControllerKeyListener *
800 spi_key_listener_clone (DEControllerKeyListener *key_listener)
802 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
803 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
804 clone->listener.path = g_strdup (key_listener->listener.path);
805 clone->listener.type = SPI_DEVICE_TYPE_KBD;
806 clone->keys = keylist_clone (key_listener->keys);
807 clone->mask = key_listener->mask;
808 clone->listener.types = key_listener->listener.types;
809 if (key_listener->mode)
811 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
812 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
819 static void keylist_free(GSList *keys)
823 for (l = keys; l; l = g_slist_next(l))
825 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
826 g_free(kd->keystring);
833 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
835 keylist_free(key_listener->keys);
836 if (key_listener->mode) g_free(key_listener->mode);
837 g_free (key_listener);
841 spi_key_listener_clone_free (DEControllerKeyListener *clone)
843 spi_key_listener_data_free (clone);
847 spi_listener_clone_free (DEControllerListener *clone)
849 g_free (clone->path);
850 g_free (clone->bus_name);
855 spi_dec_listener_free (DEControllerListener *listener)
857 g_free (listener->bus_name);
858 g_free (listener->path);
859 if (listener->type == SPI_DEVICE_TYPE_KBD)
860 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
864 _register_keygrab (SpiDEController *controller,
865 DEControllerGrabMask *grab_mask)
869 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
870 spi_grab_mask_compare_values);
873 DEControllerGrabMask *cur_mask = l->data;
875 cur_mask->ref_count++;
876 if (cur_mask->pending_remove)
878 cur_mask->pending_remove = FALSE;
883 controller->keygrabs_list =
884 g_list_prepend (controller->keygrabs_list,
885 spi_grab_mask_clone (grab_mask));
890 _deregister_keygrab (SpiDEController *controller,
891 DEControllerGrabMask *grab_mask)
895 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
896 spi_grab_mask_compare_values);
900 DEControllerGrabMask *cur_mask = l->data;
902 cur_mask->ref_count--;
903 if (cur_mask->ref_count <= 0)
905 cur_mask->pending_remove = TRUE;
911 handle_keygrab (SpiDEController *controller,
912 DEControllerKeyListener *key_listener,
913 void (*process_cb) (SpiDEController *controller,
914 DEControllerGrabMask *grab_mask))
916 DEControllerGrabMask grab_mask = { 0 };
918 grab_mask.mod_mask = key_listener->mask;
919 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
921 grab_mask.key_val = AnyKey;
923 fprintf (stderr, "AnyKey grab!");
925 process_cb (controller, &grab_mask);
931 for (l = key_listener->keys; l; l = g_slist_next(l))
933 Accessibility_KeyDefinition *keydef = l->data;
934 long int key_val = keydef->keysym;
935 /* X Grabs require keycodes, not keysyms */
936 if (keydef->keystring && keydef->keystring[0])
938 key_val = XStringToKeysym(keydef->keystring);
942 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
946 key_val = keydef->keycode;
948 grab_mask.key_val = key_val;
949 process_cb (controller, &grab_mask);
955 spi_controller_register_global_keygrabs (SpiDEController *controller,
956 DEControllerKeyListener *key_listener)
958 handle_keygrab (controller, key_listener, _register_keygrab);
959 if (controller->xevie_display == NULL)
960 return spi_controller_update_key_grabs (controller, NULL);
966 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
967 DEControllerKeyListener *key_listener)
969 handle_keygrab (controller, key_listener, _deregister_keygrab);
970 if (controller->xevie_display == NULL)
971 spi_controller_update_key_grabs (controller, NULL);
975 spi_controller_register_device_listener (SpiDEController *controller,
976 DEControllerListener *listener)
978 DEControllerKeyListener *key_listener;
980 switch (listener->type) {
981 case SPI_DEVICE_TYPE_KBD:
982 key_listener = (DEControllerKeyListener *) listener;
984 controller->key_listeners = g_list_prepend (controller->key_listeners,
986 spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
987 if (key_listener->mode->global)
989 return spi_controller_register_global_keygrabs (controller, key_listener);
994 case SPI_DEVICE_TYPE_MOUSE:
995 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
996 if (!have_mouse_listener)
998 have_mouse_listener = TRUE;
999 if (!have_mouse_event_listener)
1000 g_timeout_add (100, spi_dec_poll_mouse_idle, controller->registry);
1002 spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
1011 Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
1012 SpiRegistry *registry,
1013 DEControllerListener *listener,
1014 const Accessibility_DeviceEvent *key_event)
1016 DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
1018 SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
1021 dbus_bool_t consumed = FALSE;
1023 dbus_error_init(&error);
1024 if (spi_dbus_marshal_deviceEvent(message, key_event))
1026 // TODO: Evaluate performance: perhaps rework this whole architecture
1027 // to avoid blocking calls
1028 DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
1032 dbus_error_init(&error);
1033 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
1034 dbus_message_unref(reply);
1037 dbus_message_unref(message);
1042 spi_controller_notify_mouselisteners (SpiDEController *controller,
1043 const Accessibility_DeviceEvent *event)
1046 GSList *notify = NULL, *l2;
1047 GList **listeners = &controller->mouse_listeners;
1048 gboolean is_consumed;
1049 #ifdef SPI_KEYEVENT_DEBUG
1050 gboolean found = FALSE;
1057 for (l = *listeners; l; l = l->next)
1059 DEControllerListener *listener = l->data;
1061 if (spi_eventtype_seq_contains_event (listener->types, event))
1063 /* we clone (don't dup) the listener, to avoid refcount inc. */
1064 notify = g_slist_prepend (notify,
1065 spi_listener_clone (listener));
1066 #ifdef SPI_KEYEVENT_DEBUG
1072 #ifdef SPI_KEYEVENT_DEBUG
1075 g_print ("no match for event\n");
1079 is_consumed = FALSE;
1080 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1082 DEControllerListener *listener = l2->data;
1084 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1086 spi_listener_clone_free ((DEControllerListener *) l2->data);
1089 for (; l2; l2 = l2->next)
1091 DEControllerListener *listener = l2->data;
1092 spi_listener_clone_free (listener);
1093 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1096 g_slist_free (notify);
1099 if (is_consumed) g_message ("consumed\n");
1105 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1108 Accessibility_DeviceEvent mouse_e;
1109 gchar event_detail[3];
1110 gboolean is_consumed = FALSE;
1111 gboolean xkb_mod_unlatch_occurred;
1112 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1113 dbus_uint32_t ix, iy;
1115 int button = xbutton_event->button;
1117 unsigned int mouse_button_state = xbutton_event->state;
1122 mouse_button_state |= Button1Mask;
1125 mouse_button_state |= Button2Mask;
1128 mouse_button_state |= Button3Mask;
1131 mouse_button_state |= Button4Mask;
1134 mouse_button_state |= Button5Mask;
1138 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1139 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1142 fprintf (stderr, "mouse button %d %s (%x)\n",
1143 xbutton_event->button,
1144 (xevent->type == ButtonPress) ? "Press" : "Release",
1145 mouse_button_state);
1147 snprintf (event_detail, 3, "%d%c", button,
1148 (xevent->type == ButtonPress) ? 'p' : 'r');
1150 /* TODO: FIXME distinguish between physical and logical buttons */
1151 mouse_e.type = (xevent->type == ButtonPress) ?
1152 Accessibility_BUTTON_PRESSED_EVENT :
1153 Accessibility_BUTTON_RELEASED_EVENT;
1154 mouse_e.id = button;
1155 mouse_e.hw_code = button;
1156 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1157 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1158 mouse_e.event_string = "";
1159 mouse_e.is_text = FALSE;
1160 if ((mouse_button_state & mouse_button_mask) !=
1161 (mouse_mask_state & mouse_button_mask))
1163 if ((mouse_mask_state & key_modifier_mask) !=
1164 (mouse_button_state & key_modifier_mask))
1165 spi_dec_emit_modifier_event (controller,
1166 mouse_mask_state, mouse_button_state);
1167 mouse_mask_state = mouse_button_state;
1169 spi_controller_notify_mouselisteners (controller, &mouse_e);
1170 ix = last_mouse_pos->x;
1171 iy = last_mouse_pos->y;
1172 emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, ix, iy);
1175 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1176 xevent->type == ButtonRelease);
1178 /* if client wants to consume this event, and XKB latch state was
1179 * unset by this button event, we reset it
1181 if (is_consumed && xkb_mod_unlatch_occurred)
1182 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1184 XAllowEvents (spi_get_display (),
1185 (is_consumed) ? SyncPointer : ReplayPointer,
1190 global_filter_fn (XEvent *xevent, void *data)
1192 SpiDEController *controller;
1193 DEControllerPrivateData *priv;
1194 Display *display = spi_get_display ();
1195 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1196 priv = (DEControllerPrivateData *)
1197 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1199 if (xevent->type == MappingNotify)
1202 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1204 if (controller->xevie_display == NULL)
1206 gboolean is_consumed;
1209 spi_device_event_controller_forward_key_event (controller, xevent);
1216 n_events = XPending (display);
1218 #ifdef SPI_KEYEVENT_DEBUG
1219 g_print ("Number of events pending: %d\n", n_events);
1221 for (i = 0; i < n_events; i++)
1223 XNextEvent (display, &next_event);
1224 if (next_event.type != KeyPress &&
1225 next_event.type != KeyRelease)
1226 g_warning ("Unexpected event type %d in queue", next_event.type);
1229 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1231 XUngrabKeyboard (display, CurrentTime);
1235 if (xevent->type == KeyPress)
1236 wait_for_release_event (xevent, controller);
1237 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1243 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1245 spi_device_event_controller_forward_mouse_event (controller, xevent);
1247 if (xevent->type == priv->xkb_base_event_code)
1249 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1250 /* ugly but probably necessary...*/
1251 XSynchronize (display, TRUE);
1253 if (xkb_ev->xkb_type == XkbStateNotify)
1255 XkbStateNotifyEvent *xkb_snev =
1256 (XkbStateNotifyEvent *) xkb_ev;
1257 /* check the mouse, to catch mouse events grabbed by
1258 * another client; in case we should revert this XKB delatch
1260 if (!priv->pending_xkb_mod_relatch_mask)
1264 spi_dec_mouse_check (controller, &x, &y, &moved);
1266 /* we check again, since the previous call may have
1267 changed this flag */
1268 if (priv->pending_xkb_mod_relatch_mask)
1270 unsigned int feedback_mask;
1271 #ifdef SPI_XKB_DEBUG
1272 fprintf (stderr, "relatching %x\n",
1273 priv->pending_xkb_mod_relatch_mask);
1275 /* temporarily turn off the latch bell, if it's on */
1276 XkbGetControls (display,
1277 XkbAccessXFeedbackMask,
1279 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1280 if (feedback_mask & XkbAX_StickyKeysFBMask)
1282 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1284 priv->xkb_desc->ctrls->ax_options
1285 &= ~(XkbAX_StickyKeysFBMask);
1286 XkbChangeControls (display, priv->xkb_desc, &changes);
1288 /* TODO: account for lock as well as latch */
1289 XkbLatchModifiers (display,
1291 priv->pending_xkb_mod_relatch_mask,
1292 priv->pending_xkb_mod_relatch_mask);
1293 if (feedback_mask & XkbAX_StickyKeysFBMask)
1295 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1297 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1298 XkbChangeControls (display, priv->xkb_desc, &changes);
1300 #ifdef SPI_XKB_DEBUG
1301 fprintf (stderr, "relatched %x\n",
1302 priv->pending_xkb_mod_relatch_mask);
1304 priv->pending_xkb_mod_relatch_mask = 0;
1308 priv->xkb_latch_mask = xkb_snev->latched_mods;
1311 XSynchronize (display, FALSE);
1318 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1320 if (error->error_code == BadAccess)
1322 g_message ("Could not complete key grab: grab already in use.\n");
1323 spi_error_code = BadAccess;
1328 return (*x_default_error_handler) (display, error);
1333 spi_controller_register_with_devices (SpiDEController *controller)
1335 DEControllerPrivateData *priv;
1336 int event_base, error_base, major_version, minor_version;
1338 priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1339 if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
1341 XTestGrabControl (spi_get_display (), True);
1344 /* calls to device-specific implementations and routines go here */
1345 /* register with: keyboard hardware code handler */
1346 /* register with: (translated) keystroke handler */
1348 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1349 &priv->xkb_major_extension_opcode,
1350 &priv->xkb_base_event_code,
1351 &priv->xkb_base_error_code, NULL, NULL);
1355 guint64 reserved = 0;
1356 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1357 XkbSelectEvents (spi_get_display (),
1359 XkbStateNotifyMask, XkbStateNotifyMask);
1360 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1362 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1364 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1366 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1368 /* don't use this one if there's a grab client! */
1370 /* Runtime errors are generated from these functions,
1371 * that are then quashed. Equivalent to:
1378 spi_x_error_trap ();
1379 XGrabKey (spi_get_display (), i, 0,
1380 spi_get_root_window (),
1382 GrabModeSync, GrabModeSync);
1383 XSync (spi_get_display (), TRUE);
1384 XUngrabKey (spi_get_display (), i, 0,
1385 spi_get_root_window ());
1386 if (!spi_x_error_release ())
1396 priv->reserved_keycode = reserved;
1397 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1401 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1402 priv->reserved_keysym = XK_numbersign;
1404 #ifdef SPI_RESERVED_DEBUG
1406 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1407 fprintf (stderr, "%x\n", sym);
1408 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1410 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1415 spi_set_filter (global_filter_fn, controller);
1416 spi_set_events (KeyPressMask | KeyReleaseMask);
1418 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1422 spi_key_set_contains_key (GSList *key_set,
1423 const Accessibility_DeviceEvent *key_event)
1432 g_print ("null key set!\n");
1437 len = g_slist_length (key_set);
1439 if (len == 0) /* special case, means "all keys/any key" */
1442 g_print ("anykey\n");
1447 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1449 Accessibility_KeyDefinition *kd = l->data;
1450 #ifdef SPI_KEYEVENT_DEBUG
1451 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1455 (int) key_event->id,
1456 (int) key_event->hw_code,
1457 key_event->event_string);
1459 if (kd->keysym == (dbus_uint32_t) key_event->id)
1463 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1467 if (key_event->event_string && key_event->event_string[0] &&
1468 !strcmp (kd->keystring, key_event->event_string))
1478 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1479 const Accessibility_DeviceEvent *event)
1481 if (types == 0) /* special case, means "all events/any event" */
1486 return (types & (1 << event->type));
1490 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1491 DEControllerKeyListener *listener,
1492 dbus_bool_t is_system_global)
1494 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1495 spi_key_set_contains_key (listener->keys, key_event) &&
1496 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1497 (is_system_global == listener->mode->global))
1508 spi_controller_notify_keylisteners (SpiDEController *controller,
1509 Accessibility_DeviceEvent *key_event,
1510 dbus_bool_t is_system_global)
1513 GSList *notify = NULL, *l2;
1514 GList **key_listeners = &controller->key_listeners;
1515 gboolean is_consumed;
1522 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1523 if (key_event->modifiers & _numlock_physical_mask)
1524 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1526 for (l = *key_listeners; l; l = l->next)
1528 DEControllerKeyListener *key_listener = l->data;
1530 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1532 /* we clone (don't dup) the listener, to avoid refcount inc. */
1533 notify = g_slist_prepend (notify,
1534 spi_key_listener_clone (key_listener));
1538 #ifdef SPI_KEYEVENT_DEBUG
1541 g_print ("no match for event\n");
1545 is_consumed = FALSE;
1546 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1548 DEControllerKeyListener *key_listener = l2->data;
1550 is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1551 key_listener->mode->preemptive;
1553 spi_key_listener_clone_free (key_listener);
1556 for (; l2; l2 = l2->next)
1558 DEControllerKeyListener *key_listener = l2->data;
1559 spi_key_listener_clone_free (key_listener);
1560 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1563 g_slist_free (notify);
1566 if (is_consumed) g_message ("consumed\n");
1572 spi_clear_error_state (void)
1574 gboolean retval = spi_error_code != 0;
1579 static Accessibility_DeviceEvent
1580 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1582 Accessibility_DeviceEvent key_event;
1584 const int cbuf_bytes = 20;
1588 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1589 key_event.id = (dbus_int32_t)(keysym);
1590 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1591 if (((XEvent *) x_key_event)->type == KeyPress)
1593 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1597 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1599 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1600 key_event.is_text = FALSE;
1604 key_event.event_string = g_strdup ("space");
1607 key_event.event_string = g_strdup ("Tab");
1610 key_event.event_string = g_strdup ("Backspace");
1613 key_event.event_string = g_strdup ("Return");
1616 key_event.event_string = g_strdup ("Home");
1619 key_event.event_string = g_strdup ("Page_Down");
1622 key_event.event_string = g_strdup ("Page_Up");
1625 key_event.event_string = g_strdup ("F1");
1628 key_event.event_string = g_strdup ("F2");
1631 key_event.event_string = g_strdup ("F3");
1634 key_event.event_string = g_strdup ("F4");
1637 key_event.event_string = g_strdup ("F5");
1640 key_event.event_string = g_strdup ("F6");
1643 key_event.event_string = g_strdup ("F7");
1646 key_event.event_string = g_strdup ("F8");
1649 key_event.event_string = g_strdup ("F9");
1652 key_event.event_string = g_strdup ("F10");
1655 key_event.event_string = g_strdup ("F11");
1658 key_event.event_string = g_strdup ("F12");
1661 key_event.event_string = g_strdup ("End");
1664 key_event.event_string = g_strdup ("Escape");
1667 key_event.event_string = g_strdup ("Up");
1670 key_event.event_string = g_strdup ("Down");
1673 key_event.event_string = g_strdup ("Left");
1676 key_event.event_string = g_strdup ("Right");
1682 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1683 key_event.event_string = g_strdup (cbuf);
1684 c = keysym2ucs (keysym);
1685 if (c > 0 && !g_unichar_iscntrl (c))
1687 key_event.is_text = TRUE;
1688 /* incorrect for some composed chars? */
1693 key_event.event_string = g_strdup ("");
1697 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1698 #ifdef SPI_KEYEVENT_DEBUG
1700 char *pressed_str = "pressed";
1701 char *released_str = "released";
1704 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1705 state_ptr = pressed_str;
1707 state_ptr = released_str;
1710 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1711 (unsigned long) keysym,
1713 keysym ? (int) keysym : '*',
1714 (int) x_key_event->state,
1715 key_event.event_string,
1716 key_event.event_string[0],
1717 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1721 fprintf (stderr, "%s%c\n",
1722 (x_key_event->state & Mod1Mask)?"Alt-":"",
1723 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1724 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1725 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1726 #endif /* SPI_DEBUG */
1731 spi_controller_update_key_grabs (SpiDEController *controller,
1732 Accessibility_DeviceEvent *recv)
1735 gboolean update_failed = FALSE;
1736 KeyCode keycode = 0;
1738 g_return_val_if_fail (controller != NULL, FALSE);
1741 * masks known to work with default RH 7.1+:
1742 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1743 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1744 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1745 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1747 * ControlMask grabs are broken, must be in use already
1750 keycode = keycode_for_keysym (controller, recv->id, NULL);
1751 for (l = controller->keygrabs_list; l; l = next)
1754 gboolean re_issue_grab;
1755 DEControllerGrabMask *grab_mask = l->data;
1759 re_issue_grab = recv &&
1760 (recv->modifiers & grab_mask->mod_mask) &&
1761 (grab_mask->key_val == keycode);
1764 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1765 (long int) grab_mask->key_val,
1766 (long int) grab_mask->mod_mask,
1767 grab_mask->pending_add ? '+' : '.',
1768 grab_mask->pending_remove ? '-' : '.',
1769 re_issue_grab ? "re-issue": "");
1774 if (grab_mask->pending_add && grab_mask->pending_remove)
1778 else if (grab_mask->pending_remove)
1781 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1783 XUngrabKey (spi_get_display (),
1785 grab_mask->mod_mask,
1786 spi_get_root_window ());
1790 else if (grab_mask->pending_add || re_issue_grab)
1794 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1796 XGrabKey (spi_get_display (),
1798 grab_mask->mod_mask,
1799 spi_get_root_window (),
1803 XSync (spi_get_display (), False);
1804 update_failed = spi_clear_error_state ();
1805 if (update_failed) {
1806 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1811 grab_mask->pending_add = FALSE;
1812 grab_mask->pending_remove = FALSE;
1816 g_assert (grab_mask->ref_count <= 0);
1818 controller->keygrabs_list = g_list_delete_link (
1819 controller->keygrabs_list, l);
1821 spi_grab_mask_free (grab_mask);
1826 return ! update_failed;
1830 * Implemented GObject::finalize
1833 spi_device_event_controller_object_finalize (GObject *object)
1835 SpiDEController *controller;
1836 DEControllerPrivateData *private;
1837 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1838 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1840 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1842 /* disconnect any special listeners, get rid of outstanding keygrabs */
1843 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1846 if (controller->xevie_display != NULL)
1848 XevieEnd(controller->xevie_display);
1849 #ifdef SPI_KEYEVENT_DEBUG
1850 printf("XevieEnd(dpy) finished \n");
1855 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1856 if (private->xkb_desc)
1857 XkbFreeKeyboard (private->xkb_desc, 0, True);
1859 parent_class->finalize (object);
1863 * DBus Accessibility::DEController::RegisterKeystrokeListener
1864 * method implementation
1866 static DBusMessage *
1867 impl_register_keystroke_listener (DBusConnection *bus,
1868 DBusMessage *message,
1871 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1872 DEControllerKeyListener *dec_listener;
1873 DBusMessageIter iter, iter_array;
1875 GSList *keys = NULL;
1876 dbus_int32_t mask, type;
1877 Accessibility_EventListenerMode *mode;
1879 DBusMessage *reply = NULL;
1882 dbus_message_iter_init(message, &iter);
1883 // TODO: verify type signature
1884 dbus_message_iter_get_basic(&iter, &path);
1885 dbus_message_iter_next(&iter);
1886 dbus_message_iter_recurse(&iter, &iter_array);
1887 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1889 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1890 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))
1894 kd->keystring = g_strdup (keystring);
1895 keys = g_slist_append(keys, kd);
1897 dbus_message_iter_next(&iter);
1898 dbus_message_iter_get_basic(&iter, &mask);
1899 dbus_message_iter_next(&iter);
1900 if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
1901 dbus_message_iter_get_basic(&iter, &type);
1904 dbus_message_iter_recurse(&iter, &iter_array);
1905 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1908 dbus_message_iter_get_basic (&iter_array, &t);
1910 dbus_message_iter_next (&iter_array);
1912 dbus_message_iter_next (&iter_array);
1914 dbus_message_iter_next(&iter);
1915 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1918 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);
1921 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1922 dbus_message_get_sender(message), path, (unsigned long) mask);
1924 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1925 ret = spi_controller_register_device_listener (
1926 controller, (DEControllerListener *) dec_listener);
1927 reply = dbus_message_new_method_return (message);
1930 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1936 * DBus Accessibility::DEController::RegisterDeviceEventListener
1937 * method implementation
1939 static DBusMessage *
1940 impl_register_device_event_listener (DBusConnection *bus,
1941 DBusMessage *message,
1944 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1945 DEControllerListener *dec_listener;
1948 dbus_int32_t event_types;
1950 DBusMessage *reply = NULL;
1952 dbus_error_init(&error);
1953 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1955 return invalid_arguments_error (message);
1957 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1958 ret = spi_controller_register_device_listener (
1959 controller, (DEControllerListener *) dec_listener);
1960 reply = dbus_message_new_method_return (message);
1963 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1969 DBusConnection *bus;
1970 DEControllerListener *listener;
1971 } RemoveListenerClosure;
1973 static SpiReEntrantContinue
1974 remove_listener_cb (GList * const *list,
1977 DEControllerListener *listener = (*list)->data;
1978 RemoveListenerClosure *ctx = user_data;
1980 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1981 !strcmp(ctx->listener->path, listener->path))
1983 spi_re_entrant_list_delete_link (list);
1984 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1985 spi_dec_listener_free (listener);
1988 return SPI_RE_ENTRANT_CONTINUE;
1991 static SpiReEntrantContinue
1992 copy_key_listener_cb (GList * const *list,
1995 DEControllerKeyListener *key_listener = (*list)->data;
1996 RemoveListenerClosure *ctx = user_data;
1998 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1999 !strcmp(ctx->listener->path, key_listener->listener.path))
2001 /* TODO: FIXME aggregate keys in case the listener is registered twice */
2002 DEControllerKeyListener *ctx_key_listener =
2003 (DEControllerKeyListener *) ctx->listener;
2004 keylist_free (ctx_key_listener->keys);
2005 ctx_key_listener->keys = keylist_clone(key_listener->keys);
2008 return SPI_RE_ENTRANT_CONTINUE;
2012 spi_controller_deregister_device_listener (SpiDEController *controller,
2013 DEControllerListener *listener)
2015 RemoveListenerClosure ctx;
2017 ctx.bus = controller->bus;
2018 ctx.listener = listener;
2020 spi_re_entrant_list_foreach (&controller->mouse_listeners,
2021 remove_listener_cb, &ctx);
2022 if (!controller->mouse_listeners)
2023 have_mouse_listener = FALSE;
2027 spi_deregister_controller_key_listener (SpiDEController *controller,
2028 DEControllerKeyListener *key_listener)
2030 RemoveListenerClosure ctx;
2032 ctx.bus = controller->bus;
2033 ctx.listener = (DEControllerListener *) key_listener;
2035 /* special case, copy keyset from existing controller list entry */
2036 if (g_slist_length(key_listener->keys) == 0)
2038 spi_re_entrant_list_foreach (&controller->key_listeners,
2039 copy_key_listener_cb, &ctx);
2042 spi_controller_deregister_global_keygrabs (controller, key_listener);
2044 spi_re_entrant_list_foreach (&controller->key_listeners,
2045 remove_listener_cb, &ctx);
2050 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
2054 for (l = controller->mouse_listeners; l; l = tmp)
2056 DEControllerListener *listener = l->data;
2058 if (!strcmp (listener->bus_name, bus_name))
2060 spi_controller_deregister_device_listener (controller, listener);
2063 for (l = controller->key_listeners; l; l = tmp)
2065 DEControllerKeyListener *key_listener = l->data;
2067 if (!strcmp (key_listener->listener.bus_name, bus_name))
2069 spi_deregister_controller_key_listener (controller, key_listener);
2075 * DBus Accessibility::DEController::DeregisterKeystrokeListener
2076 * method implementation
2078 static DBusMessage *
2079 impl_deregister_keystroke_listener (DBusConnection *bus,
2080 DBusMessage *message,
2083 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2084 DEControllerKeyListener *key_listener;
2085 DBusMessageIter iter, iter_array;
2087 GSList *keys = NULL;
2088 dbus_int32_t mask, type;
2089 DBusMessage *reply = NULL;
2091 dbus_message_iter_init(message, &iter);
2092 // TODO: verify type signature
2093 dbus_message_iter_get_basic(&iter, &path);
2094 dbus_message_iter_next(&iter);
2095 dbus_message_iter_recurse(&iter, &iter_array);
2096 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
2098 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2101 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))
2105 kd->keystring = g_strdup (keystring);
2106 keys = g_slist_append(keys, kd);
2108 dbus_message_iter_next(&iter);
2109 dbus_message_iter_get_basic(&iter, &mask);
2110 dbus_message_iter_next(&iter);
2111 dbus_message_iter_get_basic(&iter, &type);
2112 dbus_message_iter_next(&iter);
2113 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2114 #ifdef SPI_DEREGISTER_DEBUG
2115 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2116 (void *) l, (unsigned long) mask->value);
2119 spi_deregister_controller_key_listener (controller, key_listener);
2121 spi_dec_listener_free ((DEControllerListener *) key_listener);
2122 reply = dbus_message_new_method_return (message);
2127 * DBus Accessibility::DEController::DeregisterDeviceEventListener
2128 * method implementation
2130 static DBusMessage *
2131 impl_deregister_device_event_listener (DBusConnection *bus,
2132 DBusMessage *message,
2135 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2136 DEControllerListener *listener;
2139 dbus_int32_t event_types;
2140 DBusMessage *reply = NULL;
2142 dbus_error_init(&error);
2143 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2145 return invalid_arguments_error (message);
2147 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2148 spi_controller_deregister_device_listener (
2149 controller, listener);
2150 reply = dbus_message_new_method_return (message);
2154 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2156 unsigned int retval = 0;
2157 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2158 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2160 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2161 retval = XkbGetSlowKeysDelay (spi_get_display (),
2162 XkbUseCoreKbd, &bounce_delay);
2164 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2166 Status s = XkbGetControls (spi_get_display (),
2167 XkbAllControlsMask, priv->xkb_desc);
2170 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2171 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2176 #ifdef SPI_XKB_DEBUG
2177 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2182 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2184 unsigned int retval = 0;
2185 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2186 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2188 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2189 retval = XkbGetBounceKeysDelay (spi_get_display (),
2190 XkbUseCoreKbd, &bounce_delay);
2192 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2194 Status s = XkbGetControls (spi_get_display (),
2195 XkbAllControlsMask, priv->xkb_desc);
2198 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2199 retval = priv->xkb_desc->ctrls->debounce_delay;
2204 #ifdef SPI_XKB_DEBUG
2205 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2211 dec_synth_keycode_press (SpiDEController *controller,
2212 unsigned int keycode)
2214 unsigned int time = CurrentTime;
2215 unsigned int bounce_delay;
2216 unsigned int elapsed_msec;
2218 DEControllerPrivateData *priv =
2219 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2220 spi_dec_private_quark);
2221 if (keycode == priv->last_release_keycode)
2223 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2226 gettimeofday (&tv, NULL);
2228 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2229 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2230 #ifdef SPI_XKB_DEBUG
2231 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2232 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2234 #ifdef THIS_IS_BROKEN
2235 if (elapsed_msec < bounce_delay)
2236 time = bounce_delay - elapsed_msec + 1;
2238 time = bounce_delay + 10;
2239 /* fudge for broken XTest */
2241 #ifdef SPI_XKB_DEBUG
2242 fprintf (stderr, "waiting %d ms\n", time);
2246 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2247 priv->last_press_keycode = keycode;
2248 XFlush (spi_get_display ());
2249 XSync (spi_get_display (), False);
2250 gettimeofday (&priv->last_press_time, NULL);
2255 dec_synth_keycode_release (SpiDEController *controller,
2256 unsigned int keycode)
2258 unsigned int time = CurrentTime;
2259 unsigned int slow_delay;
2260 unsigned int elapsed_msec;
2262 DEControllerPrivateData *priv =
2263 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2264 spi_dec_private_quark);
2265 if (keycode == priv->last_press_keycode)
2267 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2270 gettimeofday (&tv, NULL);
2272 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2273 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2274 #ifdef SPI_XKB_DEBUG
2275 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2276 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2278 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2279 if (elapsed_msec < slow_delay)
2280 time = slow_delay - elapsed_msec + 1;
2282 time = slow_delay + 10;
2283 /* our XTest seems broken, we have to add slop as above */
2285 #ifdef SPI_XKB_DEBUG
2286 fprintf (stderr, "waiting %d ms\n", time);
2290 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2291 priv->last_release_keycode = keycode;
2292 XSync (spi_get_display (), False);
2293 gettimeofday (&priv->last_release_time, NULL);
2298 dec_get_modifier_state (SpiDEController *controller)
2300 return mouse_mask_state;
2304 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2306 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2307 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2309 if (priv->have_xkb) {
2310 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2311 modifiers, modifiers);
2314 for (mod_index=0;mod_index<8;mod_index++)
2315 if (modifiers & (1<<mod_index))
2316 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2322 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2324 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2325 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2327 if (priv->have_xkb) {
2328 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2332 for (mod_index=0;mod_index<8;mod_index++)
2333 if (modifiers & (1<<mod_index))
2334 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2340 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2342 return ucs2keysym ((long) unichar);
2346 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2348 KeyCode key_synth_code;
2349 unsigned int modifiers, synth_mods, lock_mods;
2351 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2353 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2355 /* TODO: set the modifiers accordingly! */
2356 modifiers = dec_get_modifier_state (controller);
2357 /* side-effect; we may unset mousebutton modifiers here! */
2360 if (synth_mods != modifiers) {
2361 lock_mods = synth_mods & ~modifiers;
2362 dec_lock_modifiers (controller, lock_mods);
2364 dec_synth_keycode_press (controller, key_synth_code);
2365 dec_synth_keycode_release (controller, key_synth_code);
2367 if (synth_mods != modifiers)
2368 dec_unlock_modifiers (controller, lock_mods);
2374 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2376 /* probably we need to create and inject an XIM handler eventually. */
2377 /* for now, try to match the string to existing
2378 * keycode+modifier states.
2382 gunichar unichar = 0;
2384 gboolean retval = TRUE;
2387 maxlen = strlen (keystring) + 1;
2388 keysyms = g_new0 (KeySym, maxlen);
2389 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2394 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2396 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2401 mbytes = g_unichar_to_utf8 (unichar, bytes);
2402 bytes[mbytes] = '\0';
2404 fprintf (stderr, "[unichar %s]", bytes);
2406 keysym = dec_keysym_for_unichar (controller, unichar);
2407 if (keysym == NoSymbol) {
2409 fprintf (stderr, "no keysym for %s", bytes);
2414 keysyms[i++] = keysym;
2415 keystring = g_utf8_next_char (keystring);
2418 XSynchronize (spi_get_display (), TRUE);
2419 for (i = 0; keysyms[i]; ++i) {
2420 if (!dec_synth_keysym (controller, keysyms[i])) {
2422 fprintf (stderr, "could not synthesize %c\n",
2429 XSynchronize (spi_get_display (), FALSE);
2438 * DBus Accessibility::DEController::RegisterKeystrokeListener
2439 * method implementation
2441 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2443 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2445 dbus_int32_t keycode;
2447 dbus_uint32_t synth_type;
2450 DEControllerPrivateData *priv;
2451 DBusMessage *reply = NULL;
2453 dbus_error_init(&error);
2454 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2456 return invalid_arguments_error (message);
2460 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2461 (long) keycode, (int) synth_type);
2463 /* TODO: hide/wrap/remove X dependency */
2466 * TODO: when initializing, query for XTest extension before using,
2467 * and fall back to XSendEvent() if XTest is not available.
2470 spi_x_error_trap ();
2472 priv = (DEControllerPrivateData *)
2473 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2475 if (!priv->have_xkb && xmkeymap==NULL) {
2476 xmkeymap = XGetModifierMapping(spi_get_display ());
2481 case Accessibility_KEY_PRESS:
2482 dec_synth_keycode_press (controller, keycode);
2484 case Accessibility_KEY_PRESSRELEASE:
2485 dec_synth_keycode_press (controller, keycode);
2486 case Accessibility_KEY_RELEASE:
2487 dec_synth_keycode_release (controller, keycode);
2489 case Accessibility_KEY_SYM:
2490 #ifdef SPI_XKB_DEBUG
2491 fprintf (stderr, "KeySym synthesis\n");
2494 * note: we are using long for 'keycode'
2495 * in our arg list; it can contain either
2496 * a keycode or a keysym.
2498 dec_synth_keysym (controller, (KeySym) keycode);
2500 case Accessibility_KEY_STRING:
2501 if (!dec_synth_keystring (controller, keystring))
2502 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2506 if (synth_type == Accessibility_KEY_SYM) {
2510 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2512 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2514 spi_dec_clear_unlatch_pending (controller);
2516 reply = dbus_message_new_method_return (message);
2520 /* Accessibility::DEController::GenerateMouseEvent */
2521 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2527 DBusMessage *reply = NULL;
2529 gboolean err = FALSE;
2530 Display *display = spi_get_display ();
2532 dbus_error_init (&error);
2533 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2535 return invalid_arguments_error (message);
2539 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2540 eventName, (long int) x, (long int) y);
2542 switch (eventName[0])
2545 switch (eventName[1])
2547 /* TODO: check number of buttons before parsing */
2568 if (x != -1 && y != -1)
2570 XTestFakeMotionEvent (display, DefaultScreen (display),
2573 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2574 if (eventName[2] == 'c')
2575 XTestFakeButtonEvent (display, button, FALSE, 1);
2576 else if (eventName[2] == 'd')
2578 XTestFakeButtonEvent (display, button, FALSE, 1);
2579 XTestFakeButtonEvent (display, button, TRUE, 2);
2580 XTestFakeButtonEvent (display, button, FALSE, 3);
2584 case 'r': /* relative motion */
2585 XTestFakeRelativeMotionEvent (display, x, y, 0);
2587 case 'a': /* absolute motion */
2588 XTestFakeMotionEvent (display, DefaultScreen (display),
2592 reply = dbus_message_new_method_return (message);
2596 /* Accessibility::DEController::NotifyListenersSync */
2597 static DBusMessage *
2598 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2600 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2601 Accessibility_DeviceEvent event;
2603 DBusMessage *reply = NULL;
2605 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2607 return invalid_arguments_error (message);
2610 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2611 controller, (int) event.id);
2613 ret = spi_controller_notify_keylisteners (controller,
2614 (Accessibility_DeviceEvent *)
2617 reply = dbus_message_new_method_return (message);
2620 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2625 static DBusMessage *
2626 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2628 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
2629 Accessibility_DeviceEvent event;
2630 DBusMessage *reply = NULL;
2632 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2634 return invalid_arguments_error (message);
2637 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2638 controller, (int) event.id);
2640 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2642 reply = dbus_message_new_method_return (message);
2647 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2649 GObjectClass * object_class = (GObjectClass *) klass;
2651 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2653 object_class->finalize = spi_device_event_controller_object_finalize;
2655 if (!spi_dec_private_quark)
2656 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2660 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2666 handle_io (GIOChannel *source,
2667 GIOCondition condition,
2670 SpiDEController *controller = (SpiDEController *) data;
2671 gboolean is_consumed = FALSE;
2674 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2676 if (ev.type == KeyPress || ev.type == KeyRelease)
2677 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2680 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2685 #endif /* HAVE_XEVIE */
2688 spi_device_event_controller_init (SpiDEController *device_event_controller)
2690 spi_events_init (spi_get_display());
2694 #endif /* HAVE_XEVIE */
2696 DEControllerPrivateData *private;
2697 device_event_controller->key_listeners = NULL;
2698 device_event_controller->mouse_listeners = NULL;
2699 device_event_controller->keygrabs_list = NULL;
2700 device_event_controller->xevie_display = NULL;
2703 device_event_controller->xevie_display = XOpenDisplay(NULL);
2705 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2707 #ifdef SPI_KEYEVENT_DEBUG
2708 fprintf (stderr, "XevieStart() success \n");
2710 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2712 fd = ConnectionNumber(device_event_controller->xevie_display);
2713 ioc = g_io_channel_unix_new (fd);
2714 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2715 g_io_channel_unref (ioc);
2719 device_event_controller->xevie_display = NULL;
2720 #ifdef SPI_KEYEVENT_DEBUG
2721 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2724 #endif /* HAVE_XEVIE */
2726 private = g_new0 (DEControllerPrivateData, 1);
2727 gettimeofday (&private->last_press_time, NULL);
2728 gettimeofday (&private->last_release_time, NULL);
2729 g_object_set_qdata (G_OBJECT (device_event_controller),
2730 spi_dec_private_quark,
2732 spi_controller_register_with_devices (device_event_controller);
2736 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2737 const XEvent *event)
2739 Accessibility_DeviceEvent key_event;
2742 g_assert (event->type == KeyPress || event->type == KeyRelease);
2744 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2746 if (controller->xevie_display == NULL)
2747 spi_controller_update_key_grabs (controller, &key_event);
2749 /* relay to listeners, and decide whether to consume it or not */
2750 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2751 g_free(key_event.event_string);
2757 is_key_released (KeyCode code)
2762 XQueryKeymap (spi_get_display (), keys);
2763 down = BIT (keys, code);
2768 check_release (gpointer data)
2771 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2772 KeyCode code = event->hw_code;
2774 released = is_key_released (code);
2778 check_release_handler = 0;
2779 event->type = Accessibility_KEY_RELEASED_EVENT;
2780 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2782 return (released == 0);
2785 static void wait_for_release_event (XEvent *event,
2786 SpiDEController *controller)
2788 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2789 saved_controller = controller;
2790 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2793 static DBusHandlerResult
2794 handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
2796 const gchar *iface = dbus_message_get_interface (message);
2797 const gchar *member = dbus_message_get_member (message);
2798 const gint type = dbus_message_get_type (message);
2800 DBusMessage *reply = NULL;
2802 /* Check for basic reasons not to handle */
2803 if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
2806 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2808 if (strcmp (iface, SPI_DBUS_INTERFACE_DEC))
2809 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2811 if (!strcmp (member, "RegisterKeystrokeListener"))
2812 reply = impl_register_keystroke_listener (bus, message, user_data);
2813 else if (!strcmp (member, "RegisterDeviceEventListener"))
2814 reply = impl_register_device_event_listener (bus, message, user_data);
2815 else if (!strcmp (member, "DeregisterKeystrokeListener"))
2816 reply = impl_deregister_keystroke_listener (bus, message, user_data);
2817 else if (!strcmp (member, "DeregisterDeviceEventListener"))
2818 reply = impl_deregister_device_event_listener (bus, message, user_data);
2819 else if (!strcmp (member, "GenerateKeyboardEvent"))
2820 reply = impl_generate_keyboard_event (bus, message, user_data);
2821 else if (!strcmp (member, "GenerateMouseEvent"))
2822 reply = impl_generate_mouse_event (bus, message, user_data);
2823 else if (!strcmp (member, "NotifyListenersSync"))
2824 reply = impl_notify_listeners_sync (bus, message, user_data);
2825 else if (!strcmp (member, "NotifyListenersAsync"))
2826 reply = impl_notify_listeners_async (bus, message, user_data);
2828 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2832 reply = dbus_message_new_method_return (message);
2834 dbus_connection_send (bus, reply, NULL);
2835 dbus_message_unref (reply);
2837 return DBUS_HANDLER_RESULT_HANDLED;
2840 static DBusObjectPathVTable dec_vtable =
2844 NULL, NULL, NULL, NULL
2848 spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2850 SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2852 dec->registry = g_object_ref (reg);
2855 dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2857 spi_dec_init_mouse_listener (dec);
2863 spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2865 if (!have_mouse_event_listener)
2867 have_mouse_event_listener = TRUE;
2868 if (!have_mouse_listener)
2869 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
2874 spi_device_event_controller_stop_poll_mouse (void)
2876 have_mouse_event_listener = FALSE;