1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2003 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* deviceeventcontroller.c: implement the DeviceEventController interface */
30 #undef SPI_KEYEVENT_DEBUG
38 #include <X11/extensions/XTest.h>
39 #include <X11/XKBlib.h>
42 #include <X11/keysymdef.h>
45 #include <X11/Xproto.h>
47 #include <X11/extensions/Xevie.h>
48 #endif /* HAVE_XEVIE */
52 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
53 #include <gdk/gdkkeysyms.h>
54 #include <gdk/gdkwindow.h>
56 #include <atk-adaptor/spi-private.h>
57 #include <spi-common/keymasks.h>
58 #include <droute/droute.h>
59 #include <spi-common/spi-dbus.h>
60 #include <spi-common/spi-types.h>
62 #include "deviceeventcontroller.h"
63 #include "reentrant-list.h"
65 KeySym ucs2keysym (long ucs);
66 long keysym2ucs(KeySym keysym);
68 #define CHECK_RELEASE_DELAY 20
69 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
70 static guint check_release_handler = 0;
71 static Accessibility_DeviceEvent pressed_event;
72 static SpiDEController *saved_controller;
73 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
75 /* Our parent Gtk object type */
76 #define PARENT_TYPE G_TYPE_OBJECT
78 /* A pointer to our parent object class */
79 static int spi_error_code = 0;
80 static GdkPoint last_mouse_pos_static = {0, 0};
81 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
82 static unsigned int mouse_mask_state = 0;
83 static unsigned int mouse_button_mask =
84 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
85 static unsigned int key_modifier_mask =
86 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
87 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
89 static GQuark spi_dec_private_quark = 0;
90 static XModifierKeymap* xmkeymap = NULL;
92 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
96 SPI_DEVICE_TYPE_MOUSE,
97 SPI_DEVICE_TYPE_LAST_DEFINED
98 } SpiDeviceTypeCategory;
101 guint ref_count : 30;
102 guint pending_add : 1;
103 guint pending_remove : 1;
105 Accessibility_ControllerEventMask mod_mask;
106 dbus_uint32_t key_val; /* KeyCode */
107 } DEControllerGrabMask;
112 SpiDeviceTypeCategory type;
114 } DEControllerListener;
117 DEControllerListener listener;
120 Accessibility_ControllerEventMask mask;
121 Accessibility_EventListenerMode *mode;
122 } DEControllerKeyListener;
125 unsigned int last_press_keycode;
126 unsigned int last_release_keycode;
127 struct timeval last_press_time;
128 struct timeval last_release_time;
130 int xkb_major_extension_opcode;
131 int xkb_base_event_code;
132 int xkb_base_error_code;
133 unsigned int xkb_latch_mask;
134 unsigned int pending_xkb_mod_relatch_mask;
136 KeyCode reserved_keycode;
137 KeySym reserved_keysym;
138 guint reserved_reset_timeout;
139 } DEControllerPrivateData;
141 static void spi_controller_register_with_devices (SpiDEController *controller);
142 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
143 Accessibility_DeviceEvent *recv);
144 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
145 DEControllerListener *l);
146 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
147 const XEvent *event);
148 static void spi_controller_deregister_device_listener (SpiDEController *controller,
149 DEControllerListener *listener);
150 static void spi_deregister_controller_key_listener (SpiDEController *controller,
151 DEControllerKeyListener *key_listener);
152 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
153 const Accessibility_DeviceEvent *event);
155 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
156 const Accessibility_DeviceEvent *event);
157 static gboolean spi_clear_error_state (void);
158 static gboolean spi_dec_poll_mouse_moved (gpointer data);
159 static gboolean spi_dec_poll_mouse_moving (gpointer data);
160 static gboolean spi_dec_poll_mouse_idle (gpointer data);
162 #define spi_get_display() GDK_DISPLAY()
164 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
166 /* Private methods */
169 keysym_mod_mask (KeySym keysym, KeyCode keycode)
171 /* we really should use XKB and look directly at the keymap */
172 /* this is very inelegant */
173 Display *display = spi_get_display ();
174 unsigned int mods_rtn = 0;
175 unsigned int retval = 0;
178 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
179 (sym_rtn == keysym)) {
182 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
183 (sym_rtn == keysym)) {
186 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
187 (sym_rtn == keysym)) {
190 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
191 (sym_rtn == keysym)) {
194 else if (XkbLookupKeySym (display, keycode,
195 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
196 (sym_rtn == keysym)) {
197 retval = (Mod2Mask | ShiftMask);
199 else if (XkbLookupKeySym (display, keycode,
200 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
201 (sym_rtn == keysym)) {
202 retval = (Mod3Mask | ShiftMask);
204 else if (XkbLookupKeySym (display, keycode,
205 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
206 (sym_rtn == keysym)) {
207 retval = (Mod4Mask | ShiftMask);
215 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
218 Display *dpy = spi_get_display ();
220 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
222 fprintf (stderr, "ERROR getting map\n");
226 if (desc && desc->map)
228 gint offset = desc->map->key_sym_map[keycode].offset;
229 desc->map->syms[offset] = keysym;
233 fprintf (stderr, "Error changing key map: empty server structure\n");
235 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
237 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
238 * would be far preferable.
239 * HOWEVER it does not seem to work using XFree 4.3.
241 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
244 XkbFreeKeyboard (desc, 0, TRUE);
253 spi_dec_reset_reserved (gpointer data)
255 DEControllerPrivateData *priv = data;
256 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
257 priv->reserved_reset_timeout = 0;
262 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
265 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
268 DEControllerPrivateData *priv = (DEControllerPrivateData *)
269 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
270 /* if there's no keycode available, fix it */
271 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
273 keycode = priv->reserved_keycode;
275 * queue a timer to restore the old keycode. Ugly, but required
276 * due to races / asynchronous X delivery.
277 * Long-term fix is to extend the X keymap here instead of replace entries.
279 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
285 *modmask = keysym_mod_mask (keysym, keycode);
289 static DEControllerGrabMask *
290 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
292 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
294 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
296 clone->ref_count = 1;
297 clone->pending_add = TRUE;
298 clone->pending_remove = FALSE;
304 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
310 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
312 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
313 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
321 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
326 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
328 DEControllerPrivateData *priv =
329 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
331 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
332 priv->xkb_latch_mask);
334 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
338 spi_dec_clear_unlatch_pending (SpiDEController *controller)
340 DEControllerPrivateData *priv =
341 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
342 priv->xkb_latch_mask = 0;
345 static void emit(SpiDEController *controller, const char *name, int first_type, ...)
349 va_start(arg, first_type);
350 spi_dbus_emit_valist(controller->registry->droute.bus, SPI_DBUS_PATH_DEC, SPI_DBUS_INTERFACE_DEC, name, first_type, arg);
355 spi_dec_button_update_and_emit (SpiDEController *controller,
358 Accessibility_DeviceEvent mouse_e;
359 gchar event_name[24];
360 gboolean is_consumed = FALSE;
362 if ((mask_return & mouse_button_mask) !=
363 (mouse_mask_state & mouse_button_mask))
365 int button_number = 0;
366 gboolean is_down = False;
368 if (!(mask_return & Button1Mask) &&
369 (mouse_mask_state & Button1Mask))
371 mouse_mask_state &= ~Button1Mask;
374 else if ((mask_return & Button1Mask) &&
375 !(mouse_mask_state & Button1Mask))
377 mouse_mask_state |= Button1Mask;
381 else if (!(mask_return & Button2Mask) &&
382 (mouse_mask_state & Button2Mask))
384 mouse_mask_state &= ~Button2Mask;
387 else if ((mask_return & Button2Mask) &&
388 !(mouse_mask_state & Button2Mask))
390 mouse_mask_state |= Button2Mask;
394 else if (!(mask_return & Button3Mask) &&
395 (mouse_mask_state & Button3Mask))
397 mouse_mask_state &= ~Button3Mask;
400 else if ((mask_return & Button3Mask) &&
401 !(mouse_mask_state & Button3Mask))
403 mouse_mask_state |= Button3Mask;
407 else if (!(mask_return & Button4Mask) &&
408 (mouse_mask_state & Button4Mask))
410 mouse_mask_state &= ~Button4Mask;
413 else if ((mask_return & Button4Mask) &&
414 !(mouse_mask_state & Button4Mask))
416 mouse_mask_state |= Button4Mask;
420 else if (!(mask_return & Button5Mask) &&
421 (mouse_mask_state & Button5Mask))
423 mouse_mask_state &= ~Button5Mask;
426 else if ((mask_return & Button5Mask) &&
427 !(mouse_mask_state & Button5Mask))
429 mouse_mask_state |= Button5Mask;
435 fprintf (stderr, "Button %d %s\n",
436 button_number, (is_down) ? "Pressed" : "Released");
438 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
439 (is_down) ? 'p' : 'r');
440 /* TODO: FIXME distinguish between physical and
443 mouse_e.type = (is_down) ?
444 Accessibility_BUTTON_PRESSED_EVENT :
445 Accessibility_BUTTON_RELEASED_EVENT;
446 mouse_e.id = button_number;
447 mouse_e.hw_code = button_number;
448 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
449 mouse_e.timestamp = 0;
450 mouse_e.event_string = "";
451 mouse_e.is_text = FALSE;
453 spi_controller_notify_mouselisteners (controller,
457 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
458 emit(controller, event_name, DBUS_TYPE_UINT32, &x, DBUS_TYPE_UINT32, &y, DBUS_TYPE_INVALID);
461 spi_dec_set_unlatch_pending (controller, mask_return);
473 spi_dec_mouse_check (SpiDEController *controller,
474 int *x, int *y, gboolean *moved)
476 int win_x_return,win_y_return;
477 unsigned int mask_return;
478 Window root_return, child_return;
479 Display *display = spi_get_display ();
482 XQueryPointer(display, DefaultRootWindow (display),
483 &root_return, &child_return,
485 &win_x_return, &win_y_return, &mask_return);
487 * Since many clients grab the pointer, and X goes an automatic
488 * pointer grab on mouse-down, we often must detect mouse button events
489 * by polling rather than via a button grab.
490 * The while loop (rather than if) is used since it's possible that
491 * multiple buttons have changed state since we last checked.
493 if (mask_return != mouse_mask_state)
495 while (spi_dec_button_update_and_emit (controller, mask_return));
498 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
500 // TODO: combine these two signals?
501 dbus_uint32_t ix = *x, iy = *y;
502 emit(controller, "mouse_abs", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
503 ix -= last_mouse_pos->x;
504 iy -= last_mouse_pos->y;
505 emit(controller, "mouse_rel", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
506 last_mouse_pos->x = *x;
507 last_mouse_pos->y = *y;
519 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
522 dbus_uint32_t d1, d2;
525 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
526 prev_mask, current_mask);
529 /* set bits for the virtual modifiers like NUMLOCK */
530 if (prev_mask & _numlock_physical_mask)
531 prev_mask |= SPI_KEYMASK_NUMLOCK;
532 if (current_mask & _numlock_physical_mask)
533 current_mask |= SPI_KEYMASK_NUMLOCK;
535 d1 = prev_mask & key_modifier_mask;
536 d2 = current_mask & key_modifier_mask;
537 emit(controller, "keyboard_modifiers", DBUS_TYPE_UINT32, &d1, DBUS_TYPE_UINT32, &d2, DBUS_TYPE_INVALID);
541 spi_dec_poll_mouse_moved (gpointer data)
543 SpiRegistry *registry = SPI_REGISTRY (data);
544 SpiDEController *controller = registry->de_controller;
549 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
551 if ((mask_return & key_modifier_mask) !=
552 (mouse_mask_state & key_modifier_mask))
554 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
555 mouse_mask_state = mask_return;
562 spi_dec_poll_mouse_idle (gpointer data)
564 if (! spi_dec_poll_mouse_moved (data))
568 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
574 spi_dec_poll_mouse_moving (gpointer data)
576 if (spi_dec_poll_mouse_moved (data))
580 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
585 #ifdef WE_NEED_UGRAB_MOUSE
587 spi_dec_ungrab_mouse (gpointer data)
589 Display *display = spi_get_display ();
592 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
593 XDefaultRootWindow (spi_get_display ()));
600 spi_dec_init_mouse_listener (SpiRegistry *registry)
603 Display *display = spi_get_display ();
605 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
610 if (XGrabButton (display, AnyButton, AnyModifier,
611 gdk_x11_get_default_root_xwindow (),
612 True, ButtonPressMask | ButtonReleaseMask,
613 GrabModeSync, GrabModeAsync, None, None) != Success) {
615 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
619 XSync (display, False);
621 fprintf (stderr, "mouse buttons grabbed\n");
628 * Eventually we can use this to make the marshalling of mask types
629 * more sane, but for now we just use this to detect
630 * the use of 'virtual' masks such as numlock and convert them to
631 * system-specific mask values (i.e. ModMask).
634 static Accessibility_ControllerEventMask
635 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
637 Accessibility_ControllerEventMask tmp_mask;
638 gboolean has_numlock;
640 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
644 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
645 tmp_mask |= _numlock_physical_mask;
651 static DEControllerKeyListener *
652 spi_dec_key_listener_new (const char *bus_name,
655 const Accessibility_ControllerEventMask mask,
656 const dbus_uint32_t types,
657 const Accessibility_EventListenerMode *mode)
659 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
660 key_listener->listener.bus_name = g_strdup(bus_name);
661 key_listener->listener.path = g_strdup(path);
662 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
663 key_listener->keys = keys;
664 key_listener->mask = spi_dec_translate_mask (mask);
665 key_listener->listener.types = types;
668 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
669 memcpy(key_listener->mode, mode, sizeof(*mode));
672 key_listener->mode = NULL;
675 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
676 (unsigned int) key_listener->mask,
677 (int) (mode ? mode->global : 0),
678 (void *) key_listener->keys,
679 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
685 static DEControllerListener *
686 spi_dec_listener_new (const char *bus_name,
690 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
691 listener->bus_name = g_strdup(bus_name);
692 listener->path = g_strdup(path);
693 listener->type = SPI_DEVICE_TYPE_MOUSE;
694 listener->types = types;
698 static DEControllerListener *
699 spi_listener_clone (DEControllerListener *listener)
701 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
702 clone->bus_name = g_strdup (listener->bus_name);
703 clone->path = g_strdup (listener->path);
704 clone->type = listener->type;
705 clone->types = listener->types;
709 static GSList *keylist_clone (GSList *s)
714 for (l = s; l; l = g_slist_next(l))
716 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
719 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
720 kd->keycode = kds->keycode;
721 kd->keysym = kds->keysym;
722 kd->keystring = g_strdup(kds->keystring);
723 d = g_slist_append(d, kd);
729 static DEControllerKeyListener *
730 spi_key_listener_clone (DEControllerKeyListener *key_listener)
732 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
733 clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
734 clone->listener.path = g_strdup (key_listener->listener.path);
735 clone->listener.type = SPI_DEVICE_TYPE_KBD;
736 clone->keys = keylist_clone (key_listener->keys);
737 clone->mask = key_listener->mask;
738 clone->listener.types = key_listener->listener.types;
739 if (key_listener->mode)
741 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
742 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
749 static void keylist_free(GSList *keys)
753 for (l = keys; l; l = g_slist_next(l))
755 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
756 g_free(kd->keystring);
763 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
765 keylist_free(key_listener->keys);
766 if (key_listener->mode) g_free(key_listener->mode);
767 g_free (key_listener);
771 spi_key_listener_clone_free (DEControllerKeyListener *clone)
773 spi_key_listener_data_free (clone);
777 spi_listener_clone_free (DEControllerListener *clone)
779 g_free (clone->path);
780 g_free (clone->bus_name);
785 spi_dec_listener_free (DEControllerListener *listener)
787 g_free (listener->bus_name);
788 g_free (listener->path);
789 if (listener->type == SPI_DEVICE_TYPE_KBD)
790 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
794 _register_keygrab (SpiDEController *controller,
795 DEControllerGrabMask *grab_mask)
799 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
800 spi_grab_mask_compare_values);
803 DEControllerGrabMask *cur_mask = l->data;
805 cur_mask->ref_count++;
806 if (cur_mask->pending_remove)
808 cur_mask->pending_remove = FALSE;
813 controller->keygrabs_list =
814 g_list_prepend (controller->keygrabs_list,
815 spi_grab_mask_clone (grab_mask));
820 _deregister_keygrab (SpiDEController *controller,
821 DEControllerGrabMask *grab_mask)
825 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
826 spi_grab_mask_compare_values);
830 DEControllerGrabMask *cur_mask = l->data;
832 cur_mask->ref_count--;
833 if (cur_mask->ref_count <= 0)
835 cur_mask->pending_remove = TRUE;
840 DBG (1, g_warning ("De-registering non-existant grab"));
845 handle_keygrab (SpiDEController *controller,
846 DEControllerKeyListener *key_listener,
847 void (*process_cb) (SpiDEController *controller,
848 DEControllerGrabMask *grab_mask))
850 DEControllerGrabMask grab_mask = { 0 };
852 grab_mask.mod_mask = key_listener->mask;
853 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
855 grab_mask.key_val = AnyKey;
857 fprintf (stderr, "AnyKey grab!");
859 process_cb (controller, &grab_mask);
865 for (l = key_listener->keys; l; l = g_slist_next(l))
867 Accessibility_KeyDefinition *keydef = l->data;
868 long int key_val = keydef->keysym;
869 /* X Grabs require keycodes, not keysyms */
870 if (keydef->keystring && keydef->keystring[0])
872 key_val = XStringToKeysym(keydef->keystring);
876 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
880 key_val = keydef->keycode;
882 grab_mask.key_val = key_val;
883 process_cb (controller, &grab_mask);
889 spi_controller_register_global_keygrabs (SpiDEController *controller,
890 DEControllerKeyListener *key_listener)
892 handle_keygrab (controller, key_listener, _register_keygrab);
893 if (controller->xevie_display == NULL)
894 return spi_controller_update_key_grabs (controller, NULL);
900 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
901 DEControllerKeyListener *key_listener)
903 handle_keygrab (controller, key_listener, _deregister_keygrab);
904 if (controller->xevie_display == NULL)
905 spi_controller_update_key_grabs (controller, NULL);
909 spi_controller_register_device_listener (SpiDEController *controller,
910 DEControllerListener *listener)
912 DEControllerKeyListener *key_listener;
914 switch (listener->type) {
915 case SPI_DEVICE_TYPE_KBD:
916 key_listener = (DEControllerKeyListener *) listener;
918 controller->key_listeners = g_list_prepend (controller->key_listeners,
920 spi_dbus_add_disconnect_match (controller->registry->droute.bus, key_listener->listener.bus_name);
921 if (key_listener->mode->global)
923 return spi_controller_register_global_keygrabs (controller, key_listener);
928 case SPI_DEVICE_TYPE_MOUSE:
929 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
930 spi_dbus_add_disconnect_match (controller->registry->droute.bus, listener->bus_name);
933 DBG (1, g_warning ("listener registration for unknown device type.\n"));
939 static gboolean Accessibility_DeviceEventListener_notifyEvent(SpiRegistry *registry, DEControllerListener *listener, const Accessibility_DeviceEvent *key_event)
941 DBusMessage *message = dbus_message_new_method_call(listener->bus_name, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
943 dbus_bool_t consumed = FALSE;
945 dbus_error_init(&error);
946 if (spi_dbus_marshal_deviceEvent(message, key_event))
948 // TODO: Evaluate performance: perhaps rework this whole architecture
949 // to avoid blocking calls
950 DBusMessage *reply = dbus_connection_send_with_reply_and_block(registry->droute.bus, message, 1000, &error);
954 dbus_error_init(&error);
955 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
956 dbus_message_unref(reply);
959 dbus_message_unref(message);
964 spi_controller_notify_mouselisteners (SpiDEController *controller,
965 const Accessibility_DeviceEvent *event)
968 GSList *notify = NULL, *l2;
969 GList **listeners = &controller->mouse_listeners;
970 gboolean is_consumed;
971 #ifdef SPI_KEYEVENT_DEBUG
972 gboolean found = FALSE;
979 for (l = *listeners; l; l = l->next)
981 DEControllerListener *listener = l->data;
983 if (spi_eventtype_seq_contains_event (listener->types, event))
985 /* we clone (don't dup) the listener, to avoid refcount inc. */
986 notify = g_slist_prepend (notify,
987 spi_listener_clone (listener));
988 #ifdef SPI_KEYEVENT_DEBUG
994 #ifdef SPI_KEYEVENT_DEBUG
997 g_print ("no match for event\n");
1001 is_consumed = FALSE;
1002 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1004 DEControllerListener *listener = l2->data;
1006 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller->registry, listener, event);
1008 spi_listener_clone_free ((DEControllerListener *) l2->data);
1011 for (; l2; l2 = l2->next)
1013 DEControllerListener *listener = l2->data;
1014 spi_listener_clone_free (listener);
1015 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1018 g_slist_free (notify);
1021 if (is_consumed) g_message ("consumed\n");
1027 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1030 Accessibility_DeviceEvent mouse_e;
1031 gchar event_name[24];
1032 gboolean is_consumed = FALSE;
1033 gboolean xkb_mod_unlatch_occurred;
1034 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1035 dbus_uint32_t ix, iy;
1037 int button = xbutton_event->button;
1039 unsigned int mouse_button_state = xbutton_event->state;
1044 mouse_button_state |= Button1Mask;
1047 mouse_button_state |= Button2Mask;
1050 mouse_button_state |= Button3Mask;
1053 mouse_button_state |= Button4Mask;
1056 mouse_button_state |= Button5Mask;
1060 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1061 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1064 fprintf (stderr, "mouse button %d %s (%x)\n",
1065 xbutton_event->button,
1066 (xevent->type == ButtonPress) ? "Press" : "Release",
1067 mouse_button_state);
1069 snprintf (event_name, 22, "mouse:button_%d%c", button,
1070 (xevent->type == ButtonPress) ? 'p' : 'r');
1072 /* TODO: FIXME distinguish between physical and logical buttons */
1073 mouse_e.type = (xevent->type == ButtonPress) ?
1074 Accessibility_BUTTON_PRESSED_EVENT :
1075 Accessibility_BUTTON_RELEASED_EVENT;
1076 mouse_e.id = button;
1077 mouse_e.hw_code = button;
1078 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1079 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1080 mouse_e.event_string = "";
1081 mouse_e.is_text = FALSE;
1082 if ((mouse_button_state & mouse_button_mask) !=
1083 (mouse_mask_state & mouse_button_mask))
1085 if ((mouse_mask_state & key_modifier_mask) !=
1086 (mouse_button_state & key_modifier_mask))
1087 spi_dec_emit_modifier_event (controller,
1088 mouse_mask_state, mouse_button_state);
1089 mouse_mask_state = mouse_button_state;
1091 spi_controller_notify_mouselisteners (controller, &mouse_e);
1092 ix = last_mouse_pos->x;
1093 iy = last_mouse_pos->y;
1094 emit(controller, event_name, DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
1097 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1098 xevent->type == ButtonRelease);
1100 /* if client wants to consume this event, and XKB latch state was
1101 * unset by this button event, we reset it
1103 if (is_consumed && xkb_mod_unlatch_occurred)
1104 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1106 XAllowEvents (spi_get_display (),
1107 (is_consumed) ? SyncPointer : ReplayPointer,
1111 static GdkFilterReturn
1112 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1114 XEvent *xevent = gdk_xevent;
1115 SpiDEController *controller;
1116 DEControllerPrivateData *priv;
1117 Display *display = spi_get_display ();
1118 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1119 priv = (DEControllerPrivateData *)
1120 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1122 if (xevent->type == MappingNotify)
1125 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1127 if (controller->xevie_display == NULL)
1129 gboolean is_consumed;
1132 spi_device_event_controller_forward_key_event (controller, xevent);
1139 n_events = XPending (display);
1141 #ifdef SPI_KEYEVENT_DEBUG
1142 g_print ("Number of events pending: %d\n", n_events);
1144 for (i = 0; i < n_events; i++)
1146 XNextEvent (display, &next_event);
1147 if (next_event.type != KeyPress &&
1148 next_event.type != KeyRelease)
1149 g_warning ("Unexpected event type %d in queue", next_event.type);
1152 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1154 XUngrabKeyboard (display, CurrentTime);
1158 if (xevent->type == KeyPress)
1159 wait_for_release_event (xevent, controller);
1160 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1164 return GDK_FILTER_CONTINUE;
1166 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1168 spi_device_event_controller_forward_mouse_event (controller, xevent);
1170 if (xevent->type == priv->xkb_base_event_code)
1172 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1173 /* ugly but probably necessary...*/
1174 XSynchronize (display, TRUE);
1176 if (xkb_ev->xkb_type == XkbStateNotify)
1178 XkbStateNotifyEvent *xkb_snev =
1179 (XkbStateNotifyEvent *) xkb_ev;
1180 /* check the mouse, to catch mouse events grabbed by
1181 * another client; in case we should revert this XKB delatch
1183 if (!priv->pending_xkb_mod_relatch_mask)
1187 spi_dec_mouse_check (controller, &x, &y, &moved);
1189 /* we check again, since the previous call may have
1190 changed this flag */
1191 if (priv->pending_xkb_mod_relatch_mask)
1193 unsigned int feedback_mask;
1194 #ifdef SPI_XKB_DEBUG
1195 fprintf (stderr, "relatching %x\n",
1196 priv->pending_xkb_mod_relatch_mask);
1198 /* temporarily turn off the latch bell, if it's on */
1199 XkbGetControls (display,
1200 XkbAccessXFeedbackMask,
1202 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1203 if (feedback_mask & XkbAX_StickyKeysFBMask)
1205 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1207 priv->xkb_desc->ctrls->ax_options
1208 &= ~(XkbAX_StickyKeysFBMask);
1209 XkbChangeControls (display, priv->xkb_desc, &changes);
1211 /* TODO: account for lock as well as latch */
1212 XkbLatchModifiers (display,
1214 priv->pending_xkb_mod_relatch_mask,
1215 priv->pending_xkb_mod_relatch_mask);
1216 if (feedback_mask & XkbAX_StickyKeysFBMask)
1218 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1220 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1221 XkbChangeControls (display, priv->xkb_desc, &changes);
1223 #ifdef SPI_XKB_DEBUG
1224 fprintf (stderr, "relatched %x\n",
1225 priv->pending_xkb_mod_relatch_mask);
1227 priv->pending_xkb_mod_relatch_mask = 0;
1231 priv->xkb_latch_mask = xkb_snev->latched_mods;
1235 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1236 XSynchronize (display, FALSE);
1239 return GDK_FILTER_CONTINUE;
1243 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1245 if (error->error_code == BadAccess)
1247 g_message ("Could not complete key grab: grab already in use.\n");
1248 spi_error_code = BadAccess;
1253 return (*x_default_error_handler) (display, error);
1258 spi_controller_register_with_devices (SpiDEController *controller)
1260 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1261 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1262 /* FIXME: should check for extension first! */
1263 XTestGrabControl (spi_get_display (), True);
1265 /* calls to device-specific implementations and routines go here */
1266 /* register with: keyboard hardware code handler */
1267 /* register with: (translated) keystroke handler */
1269 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1270 &priv->xkb_major_extension_opcode,
1271 &priv->xkb_base_event_code,
1272 &priv->xkb_base_error_code, NULL, NULL);
1276 guint64 reserved = 0;
1277 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1278 XkbSelectEvents (spi_get_display (),
1280 XkbStateNotifyMask, XkbStateNotifyMask);
1281 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1283 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1285 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1287 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1289 /* don't use this one if there's a grab client! */
1290 gdk_error_trap_push ();
1291 XGrabKey (spi_get_display (), i, 0,
1292 gdk_x11_get_default_root_xwindow (),
1294 GrabModeSync, GrabModeSync);
1295 XSync (spi_get_display (), TRUE);
1296 XUngrabKey (spi_get_display (), i, 0,
1297 gdk_x11_get_default_root_xwindow ());
1298 if (!gdk_error_trap_pop ())
1308 priv->reserved_keycode = reserved;
1309 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1313 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1314 priv->reserved_keysym = XK_numbersign;
1316 #ifdef SPI_RESERVED_DEBUG
1318 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1319 fprintf (stderr, "%x\n", sym);
1320 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1322 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1327 gdk_window_add_filter (NULL, global_filter_fn, controller);
1329 gdk_window_set_events (gdk_get_default_root_window (),
1330 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1332 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1336 spi_key_set_contains_key (GSList *key_set,
1337 const Accessibility_DeviceEvent *key_event)
1345 g_print ("null key set!");
1349 len = g_slist_length (key_set);
1351 if (len == 0) /* special case, means "all keys/any key" */
1354 g_print ("anykey\n");
1359 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1361 Accessibility_KeyDefinition *kd = l->data;
1362 #ifdef SPI_KEYEVENT_DEBUG
1363 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1367 (int) key_event->id,
1368 (int) key_event->hw_code,
1369 key_event->event_string);
1371 if (kd->keysym == (dbus_uint32_t) key_event->id)
1375 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1379 if (key_event->event_string && key_event->event_string[0] &&
1380 !strcmp (kd->keystring, key_event->event_string))
1390 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1391 const Accessibility_DeviceEvent *event)
1393 if (types == 0) /* special case, means "all events/any event" */
1398 return (types & (1 << event->type));
1402 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1403 DEControllerKeyListener *listener,
1404 dbus_bool_t is_system_global)
1406 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1407 spi_key_set_contains_key (listener->keys, key_event) &&
1408 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1409 (is_system_global == listener->mode->global))
1420 spi_controller_notify_keylisteners (SpiDEController *controller,
1421 Accessibility_DeviceEvent *key_event,
1422 dbus_bool_t is_system_global)
1425 GSList *notify = NULL, *l2;
1426 GList **key_listeners = &controller->key_listeners;
1427 gboolean is_consumed;
1434 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1435 if (key_event->modifiers & _numlock_physical_mask)
1436 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1438 for (l = *key_listeners; l; l = l->next)
1440 DEControllerKeyListener *key_listener = l->data;
1442 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1444 /* we clone (don't dup) the listener, to avoid refcount inc. */
1445 notify = g_slist_prepend (notify,
1446 spi_key_listener_clone (key_listener));
1450 #ifdef SPI_KEYEVENT_DEBUG
1453 g_print ("no match for event\n");
1457 is_consumed = FALSE;
1458 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1460 DEControllerKeyListener *key_listener = l2->data;
1462 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller->registry, &key_listener->listener, key_event) &&
1463 key_listener->mode->preemptive;
1465 spi_key_listener_clone_free (key_listener);
1468 for (; l2; l2 = l2->next)
1470 DEControllerKeyListener *key_listener = l2->data;
1471 spi_key_listener_clone_free (key_listener);
1472 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1475 g_slist_free (notify);
1478 if (is_consumed) g_message ("consumed\n");
1484 spi_clear_error_state (void)
1486 gboolean retval = spi_error_code != 0;
1491 static Accessibility_DeviceEvent
1492 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1494 Accessibility_DeviceEvent key_event;
1496 const int cbuf_bytes = 20;
1500 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1501 key_event.id = (dbus_int32_t)(keysym);
1502 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1503 if (((XEvent *) x_key_event)->type == KeyPress)
1505 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1509 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1511 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1512 key_event.is_text = FALSE;
1516 key_event.event_string = g_strdup ("space");
1519 key_event.event_string = g_strdup ("Tab");
1522 key_event.event_string = g_strdup ("Backspace");
1525 key_event.event_string = g_strdup ("Return");
1528 key_event.event_string = g_strdup ("Home");
1531 key_event.event_string = g_strdup ("Page_Down");
1534 key_event.event_string = g_strdup ("Page_Up");
1537 key_event.event_string = g_strdup ("F1");
1540 key_event.event_string = g_strdup ("F2");
1543 key_event.event_string = g_strdup ("F3");
1546 key_event.event_string = g_strdup ("F4");
1549 key_event.event_string = g_strdup ("F5");
1552 key_event.event_string = g_strdup ("F6");
1555 key_event.event_string = g_strdup ("F7");
1558 key_event.event_string = g_strdup ("F8");
1561 key_event.event_string = g_strdup ("F9");
1564 key_event.event_string = g_strdup ("F10");
1567 key_event.event_string = g_strdup ("F11");
1570 key_event.event_string = g_strdup ("F12");
1573 key_event.event_string = g_strdup ("End");
1576 key_event.event_string = g_strdup ("Escape");
1579 key_event.event_string = g_strdup ("Up");
1582 key_event.event_string = g_strdup ("Down");
1585 key_event.event_string = g_strdup ("Left");
1588 key_event.event_string = g_strdup ("Right");
1594 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1595 key_event.event_string = g_strdup (cbuf);
1596 c = keysym2ucs (keysym);
1597 if (c > 0 && !g_unichar_iscntrl (c))
1599 key_event.is_text = TRUE;
1600 /* incorrect for some composed chars? */
1605 key_event.event_string = g_strdup ("");
1609 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1610 #ifdef SPI_KEYEVENT_DEBUG
1612 char *pressed_str = "pressed";
1613 char *released_str = "released";
1616 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1617 state_ptr = pressed_str;
1619 state_ptr = released_str;
1622 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1623 (unsigned long) keysym,
1625 keysym ? (int) keysym : '*',
1626 (int) x_key_event->state,
1627 key_event.event_string,
1628 key_event.event_string[0],
1629 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1633 fprintf (stderr, "%s%c\n",
1634 (x_key_event->state & Mod1Mask)?"Alt-":"",
1635 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1636 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1637 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1638 #endif /* SPI_DEBUG */
1643 spi_controller_update_key_grabs (SpiDEController *controller,
1644 Accessibility_DeviceEvent *recv)
1647 gboolean update_failed = FALSE;
1648 KeyCode keycode = 0;
1650 g_return_val_if_fail (controller != NULL, FALSE);
1653 * masks known to work with default RH 7.1+:
1654 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1655 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1656 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1657 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1659 * ControlMask grabs are broken, must be in use already
1662 keycode = keycode_for_keysym (controller, recv->id, NULL);
1663 for (l = controller->keygrabs_list; l; l = next)
1666 gboolean re_issue_grab;
1667 DEControllerGrabMask *grab_mask = l->data;
1671 re_issue_grab = recv &&
1672 (recv->modifiers & grab_mask->mod_mask) &&
1673 (grab_mask->key_val == keycode);
1676 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1677 (long int) grab_mask->key_val,
1678 (long int) grab_mask->mod_mask,
1679 grab_mask->pending_add ? '+' : '.',
1680 grab_mask->pending_remove ? '-' : '.',
1681 re_issue_grab ? "re-issue": "");
1686 if (grab_mask->pending_add && grab_mask->pending_remove)
1690 else if (grab_mask->pending_remove)
1693 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1695 XUngrabKey (spi_get_display (),
1697 grab_mask->mod_mask,
1698 gdk_x11_get_default_root_xwindow ());
1702 else if (grab_mask->pending_add || re_issue_grab)
1706 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1708 XGrabKey (spi_get_display (),
1710 grab_mask->mod_mask,
1711 gdk_x11_get_default_root_xwindow (),
1715 XSync (spi_get_display (), False);
1716 update_failed = spi_clear_error_state ();
1717 if (update_failed) {
1718 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1723 grab_mask->pending_add = FALSE;
1724 grab_mask->pending_remove = FALSE;
1728 g_assert (grab_mask->ref_count <= 0);
1730 controller->keygrabs_list = g_list_delete_link (
1731 controller->keygrabs_list, l);
1733 spi_grab_mask_free (grab_mask);
1738 return ! update_failed;
1742 * Implemented GObject::finalize
1745 spi_device_event_controller_object_finalize (GObject *object)
1747 SpiDEController *controller;
1748 DEControllerPrivateData *private;
1749 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1750 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1752 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1754 /* disconnect any special listeners, get rid of outstanding keygrabs */
1755 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1758 if (controller->xevie_display != NULL)
1760 XevieEnd(controller->xevie_display);
1761 #ifdef SPI_KEYEVENT_DEBUG
1762 printf("XevieEnd(dpy) finished \n");
1767 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1768 if (private->xkb_desc)
1769 XkbFreeKeyboard (private->xkb_desc, 0, True);
1771 parent_class->finalize (object);
1775 * DBus Accessibility::DEController::registerKeystrokeListener
1776 * method implementation
1778 static DBusMessage *
1779 impl_register_keystroke_listener (DBusConnection *bus,
1780 DBusMessage *message,
1783 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1784 DEControllerKeyListener *dec_listener;
1785 DBusMessageIter iter, iter_array;
1787 GSList *keys = NULL;
1788 dbus_int32_t mask, type;
1789 Accessibility_EventListenerMode *mode;
1794 dbus_message_iter_init(message, &iter);
1795 // TODO: verify type signature
1796 dbus_message_iter_get_basic(&iter, &path);
1797 dbus_message_iter_next(&iter);
1798 dbus_message_iter_recurse(&iter, &iter_array);
1799 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1801 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1802 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))
1806 kd->keystring = g_strdup (keystring);
1807 keys = g_slist_append(keys, kd);
1809 dbus_message_iter_next(&iter);
1810 dbus_message_iter_get_basic(&iter, &mask);
1811 dbus_message_iter_next(&iter);
1812 dbus_message_iter_get_basic(&iter, &type);
1813 dbus_message_iter_next(&iter);
1814 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1817 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);
1820 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1821 dbus_message_get_sender(message), path, (unsigned long) mask);
1823 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1824 ret = spi_controller_register_device_listener (
1825 controller, (DEControllerListener *) dec_listener);
1826 reply = dbus_message_new_method_return (message);
1829 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1835 * DBus Accessibility::DEController::registerDeviceEventListener
1836 * method implementation
1838 static DBusMessage *
1839 impl_register_device_listener (DBusConnection *bus,
1840 DBusMessage *message,
1843 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1844 DEControllerListener *dec_listener;
1847 dbus_int32_t event_types;
1851 dbus_error_init(&error);
1852 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1854 return spi_dbus_general_error (message);
1856 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1857 ret = spi_controller_register_device_listener (
1858 controller, (DEControllerListener *) dec_listener);
1859 reply = dbus_message_new_method_return (message);
1862 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1868 DBusConnection *bus;
1869 DEControllerListener *listener;
1870 } RemoveListenerClosure;
1872 static SpiReEntrantContinue
1873 remove_listener_cb (GList * const *list,
1876 DEControllerListener *listener = (*list)->data;
1877 RemoveListenerClosure *ctx = user_data;
1879 if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1880 !strcmp(ctx->listener->path, listener->path))
1882 spi_re_entrant_list_delete_link (list);
1883 spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1884 spi_dec_listener_free (listener);
1887 return SPI_RE_ENTRANT_CONTINUE;
1890 static SpiReEntrantContinue
1891 copy_key_listener_cb (GList * const *list,
1894 DEControllerKeyListener *key_listener = (*list)->data;
1895 RemoveListenerClosure *ctx = user_data;
1897 if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1898 !strcmp(ctx->listener->path, key_listener->listener.path))
1900 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1901 DEControllerKeyListener *ctx_key_listener =
1902 (DEControllerKeyListener *) ctx->listener;
1903 keylist_free (ctx_key_listener->keys);
1904 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1907 return SPI_RE_ENTRANT_CONTINUE;
1911 spi_controller_deregister_device_listener (SpiDEController *controller,
1912 DEControllerListener *listener)
1914 RemoveListenerClosure ctx;
1916 ctx.bus = controller->registry->droute.bus;
1917 ctx.listener = listener;
1919 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1920 remove_listener_cb, &ctx);
1924 spi_deregister_controller_key_listener (SpiDEController *controller,
1925 DEControllerKeyListener *key_listener)
1927 RemoveListenerClosure ctx;
1929 ctx.bus = controller->registry->droute.bus;
1930 ctx.listener = (DEControllerListener *) key_listener;
1932 /* special case, copy keyset from existing controller list entry */
1933 if (g_slist_length(key_listener->keys) == 0)
1935 spi_re_entrant_list_foreach (&controller->key_listeners,
1936 copy_key_listener_cb, &ctx);
1939 spi_controller_deregister_global_keygrabs (controller, key_listener);
1941 spi_re_entrant_list_foreach (&controller->key_listeners,
1942 remove_listener_cb, &ctx);
1947 spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1951 for (l = controller->mouse_listeners; l; l = tmp)
1953 DEControllerListener *listener = l->data;
1955 if (!strcmp (listener->bus_name, bus_name))
1957 printf("Removing mouse listener %s %s\n", listener->bus_name, listener->path);
1958 spi_controller_deregister_device_listener (controller, listener);
1961 for (l = controller->key_listeners; l; l = tmp)
1963 DEControllerKeyListener *key_listener = l->data;
1965 if (!strcmp (key_listener->listener.bus_name, bus_name))
1967 printf("Removing key listener: %s %s\n", key_listener->listener.bus_name, key_listener->listener.path);
1968 spi_deregister_controller_key_listener (controller, key_listener);
1974 * DBus Accessibility::DEController::deregisterKeystrokeListener
1975 * method implementation
1977 static DBusMessage *
1978 impl_deregister_keystroke_listener (DBusConnection *bus,
1979 DBusMessage *message,
1982 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1983 DEControllerKeyListener *key_listener;
1984 DBusMessageIter iter, iter_array;
1986 GSList *keys = NULL;
1987 dbus_int32_t mask, type;
1990 dbus_message_iter_init(message, &iter);
1991 // TODO: verify type signature
1992 dbus_message_iter_get_basic(&iter, &path);
1993 dbus_message_iter_next(&iter);
1994 dbus_message_iter_recurse(&iter, &iter_array);
1995 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1997 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
2000 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))
2004 kd->keystring = g_strdup (keystring);
2005 keys = g_slist_append(keys, kd);
2007 dbus_message_iter_next(&iter);
2008 dbus_message_iter_get_basic(&iter, &mask);
2009 dbus_message_iter_next(&iter);
2010 dbus_message_iter_get_basic(&iter, &type);
2011 dbus_message_iter_next(&iter);
2012 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
2013 #ifdef SPI_DEREGISTER_DEBUG
2014 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
2015 (void *) l, (unsigned long) mask->value);
2018 spi_deregister_controller_key_listener (controller, key_listener);
2020 spi_dec_listener_free ((DEControllerListener *) key_listener);
2021 reply = dbus_message_new_method_return (message);
2026 * DBus Accessibility::DEController::deregisterDeviceEventListener
2027 * method implementation
2029 static DBusMessage *
2030 impl_deregister_device_listener (DBusConnection *bus,
2031 DBusMessage *message,
2034 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2035 DEControllerListener *listener;
2038 dbus_int32_t event_types;
2041 dbus_error_init(&error);
2042 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2044 return spi_dbus_general_error (message);
2046 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2047 spi_controller_deregister_device_listener (
2048 controller, listener);
2049 reply = dbus_message_new_method_return (message);
2053 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2055 unsigned int retval = 0;
2056 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2057 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2059 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2060 retval = XkbGetSlowKeysDelay (spi_get_display (),
2061 XkbUseCoreKbd, &bounce_delay);
2063 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2065 Status s = XkbGetControls (spi_get_display (),
2066 XkbAllControlsMask, priv->xkb_desc);
2069 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2070 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2075 #ifdef SPI_XKB_DEBUG
2076 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2081 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2083 unsigned int retval = 0;
2084 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2085 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2087 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2088 retval = XkbGetBounceKeysDelay (spi_get_display (),
2089 XkbUseCoreKbd, &bounce_delay);
2091 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2093 Status s = XkbGetControls (spi_get_display (),
2094 XkbAllControlsMask, priv->xkb_desc);
2097 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2098 retval = priv->xkb_desc->ctrls->debounce_delay;
2103 #ifdef SPI_XKB_DEBUG
2104 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2110 dec_synth_keycode_press (SpiDEController *controller,
2111 unsigned int keycode)
2113 unsigned int time = CurrentTime;
2114 unsigned int bounce_delay;
2115 unsigned int elapsed_msec;
2117 DEControllerPrivateData *priv =
2118 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2119 spi_dec_private_quark);
2120 if (keycode == priv->last_release_keycode)
2122 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2125 gettimeofday (&tv, NULL);
2127 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2128 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2129 #ifdef SPI_XKB_DEBUG
2130 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2131 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2133 #ifdef THIS_IS_BROKEN
2134 if (elapsed_msec < bounce_delay)
2135 time = bounce_delay - elapsed_msec + 1;
2137 time = bounce_delay + 10;
2138 /* fudge for broken XTest */
2140 #ifdef SPI_XKB_DEBUG
2141 fprintf (stderr, "waiting %d ms\n", time);
2145 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2146 priv->last_press_keycode = keycode;
2147 XFlush (spi_get_display ());
2148 XSync (spi_get_display (), False);
2149 gettimeofday (&priv->last_press_time, NULL);
2154 dec_synth_keycode_release (SpiDEController *controller,
2155 unsigned int keycode)
2157 unsigned int time = CurrentTime;
2158 unsigned int slow_delay;
2159 unsigned int elapsed_msec;
2161 DEControllerPrivateData *priv =
2162 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2163 spi_dec_private_quark);
2164 if (keycode == priv->last_press_keycode)
2166 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2169 gettimeofday (&tv, NULL);
2171 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2172 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2173 #ifdef SPI_XKB_DEBUG
2174 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2175 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2177 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2178 if (elapsed_msec < slow_delay)
2179 time = slow_delay - elapsed_msec + 1;
2181 time = slow_delay + 10;
2182 /* our XTest seems broken, we have to add slop as above */
2184 #ifdef SPI_XKB_DEBUG
2185 fprintf (stderr, "waiting %d ms\n", time);
2189 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2190 priv->last_release_keycode = keycode;
2191 XSync (spi_get_display (), False);
2192 gettimeofday (&priv->last_release_time, NULL);
2197 dec_get_modifier_state (SpiDEController *controller)
2199 return mouse_mask_state;
2203 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2205 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2206 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2208 if (priv->have_xkb) {
2209 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2210 modifiers, modifiers);
2213 for (mod_index=0;mod_index<8;mod_index++)
2214 if (modifiers & (1<<mod_index))
2215 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2221 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2223 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2224 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2226 if (priv->have_xkb) {
2227 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2231 for (mod_index=0;mod_index<8;mod_index++)
2232 if (modifiers & (1<<mod_index))
2233 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2239 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2241 return ucs2keysym ((long) unichar);
2245 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2247 KeyCode key_synth_code;
2248 unsigned int modifiers, synth_mods, lock_mods;
2250 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2252 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2254 /* TODO: set the modifiers accordingly! */
2255 modifiers = dec_get_modifier_state (controller);
2256 /* side-effect; we may unset mousebutton modifiers here! */
2259 if (synth_mods != modifiers) {
2260 lock_mods = synth_mods & ~modifiers;
2261 dec_lock_modifiers (controller, lock_mods);
2263 dec_synth_keycode_press (controller, key_synth_code);
2264 dec_synth_keycode_release (controller, key_synth_code);
2266 if (synth_mods != modifiers)
2267 dec_unlock_modifiers (controller, lock_mods);
2273 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2275 /* probably we need to create and inject an XIM handler eventually. */
2276 /* for now, try to match the string to existing
2277 * keycode+modifier states.
2281 gunichar unichar = 0;
2283 gboolean retval = TRUE;
2286 maxlen = strlen (keystring);
2287 keysyms = g_new0 (KeySym, maxlen);
2288 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2293 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2295 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2300 mbytes = g_unichar_to_utf8 (unichar, bytes);
2301 bytes[mbytes] = '\0';
2303 fprintf (stderr, "[unichar %s]", bytes);
2305 keysym = dec_keysym_for_unichar (controller, unichar);
2306 if (keysym == NoSymbol) {
2308 fprintf (stderr, "no keysym for %s", bytes);
2313 keysyms[i++] = keysym;
2314 keystring = g_utf8_next_char (keystring);
2317 XSynchronize (spi_get_display (), TRUE);
2318 for (i = 0; keysyms[i]; ++i) {
2319 if (!dec_synth_keysym (controller, keysyms[i])) {
2321 fprintf (stderr, "could not synthesize %c\n",
2328 XSynchronize (spi_get_display (), FALSE);
2337 * DBus Accessibility::DEController::registerKeystrokeListener
2338 * method implementation
2340 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2342 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2344 dbus_int32_t keycode;
2346 dbus_uint32_t synth_type;
2349 DEControllerPrivateData *priv;
2352 dbus_error_init(&error);
2353 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2355 return spi_dbus_general_error (message);
2359 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2360 (long) keycode, (int) synth_type);
2362 /* TODO: hide/wrap/remove X dependency */
2365 * TODO: when initializing, query for XTest extension before using,
2366 * and fall back to XSendEvent() if XTest is not available.
2369 gdk_error_trap_push ();
2371 priv = (DEControllerPrivateData *)
2372 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2374 if (!priv->have_xkb && xmkeymap==NULL) {
2375 xmkeymap = XGetModifierMapping(spi_get_display ());
2380 case Accessibility_KEY_PRESS:
2381 dec_synth_keycode_press (controller, keycode);
2383 case Accessibility_KEY_PRESSRELEASE:
2384 dec_synth_keycode_press (controller, keycode);
2385 case Accessibility_KEY_RELEASE:
2386 dec_synth_keycode_release (controller, keycode);
2388 case Accessibility_KEY_SYM:
2389 #ifdef SPI_XKB_DEBUG
2390 fprintf (stderr, "KeySym synthesis\n");
2393 * note: we are using long for 'keycode'
2394 * in our arg list; it can contain either
2395 * a keycode or a keysym.
2397 dec_synth_keysym (controller, (KeySym) keycode);
2399 case Accessibility_KEY_STRING:
2400 if (!dec_synth_keystring (controller, keystring))
2401 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2405 if ((err = gdk_error_trap_pop ()))
2407 DBG (-1, g_warning ("Error [%d] emitting keystroke", err));
2409 if (synth_type == Accessibility_KEY_SYM) {
2413 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2415 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2417 spi_dec_clear_unlatch_pending (controller);
2419 reply = dbus_message_new_method_return (message);
2423 /* Accessibility::DEController::generateMouseEvent */
2424 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2432 gboolean err = FALSE;
2433 Display *display = spi_get_display ();
2435 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2437 return spi_dbus_general_error (message);
2441 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2442 eventName, (long int) x, (long int) y);
2444 switch (eventName[0])
2447 switch (eventName[1])
2449 /* TODO: check number of buttons before parsing */
2470 if (x != -1 && y != -1)
2472 XTestFakeMotionEvent (display, DefaultScreen (display),
2475 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2476 if (eventName[2] == 'c')
2477 XTestFakeButtonEvent (display, button, FALSE, 1);
2478 else if (eventName[2] == 'd')
2480 XTestFakeButtonEvent (display, button, FALSE, 1);
2481 XTestFakeButtonEvent (display, button, TRUE, 2);
2482 XTestFakeButtonEvent (display, button, FALSE, 3);
2486 case 'r': /* relative motion */
2487 XTestFakeRelativeMotionEvent (display, x, y, 0);
2489 case 'a': /* absolute motion */
2490 XTestFakeMotionEvent (display, DefaultScreen (display),
2494 reply = dbus_message_new_method_return (message);
2498 /* Accessibility::DEController::notifyListenersSync */
2499 static DBusMessage *
2500 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2502 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2503 Accessibility_DeviceEvent event;
2507 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2509 return spi_dbus_general_error (message);
2512 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2513 controller, (int) event.id);
2515 ret = spi_controller_notify_keylisteners (controller,
2516 (Accessibility_DeviceEvent *)
2519 reply = dbus_message_new_method_return (message);
2522 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2527 static DBusMessage *
2528 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2530 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2531 Accessibility_DeviceEvent event;
2534 if (!spi_dbus_demarshal_deviceEvent(message, &event))
2536 return spi_dbus_general_error (message);
2539 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2540 controller, (int) event.id);
2542 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2544 reply = dbus_message_new_method_return (message);
2549 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2551 GObjectClass * object_class = (GObjectClass *) klass;
2553 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2555 object_class->finalize = spi_device_event_controller_object_finalize;
2557 if (!spi_dec_private_quark)
2558 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2562 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2568 handle_io (GIOChannel *source,
2569 GIOCondition condition,
2572 SpiDEController *controller = (SpiDEController *) data;
2573 gboolean is_consumed = FALSE;
2576 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2578 if (ev.type == KeyPress || ev.type == KeyRelease)
2579 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2582 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2587 #endif /* HAVE_XEVIE */
2590 spi_device_event_controller_init (SpiDEController *device_event_controller)
2595 #endif /* HAVE_XEVIE */
2597 DEControllerPrivateData *private;
2598 device_event_controller->key_listeners = NULL;
2599 device_event_controller->mouse_listeners = NULL;
2600 device_event_controller->keygrabs_list = NULL;
2601 device_event_controller->xevie_display = NULL;
2604 device_event_controller->xevie_display = XOpenDisplay(NULL);
2606 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2608 #ifdef SPI_KEYEVENT_DEBUG
2609 fprintf (stderr, "XevieStart() success \n");
2611 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2613 fd = ConnectionNumber(device_event_controller->xevie_display);
2614 ioc = g_io_channel_unix_new (fd);
2615 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2616 g_io_channel_unref (ioc);
2620 device_event_controller->xevie_display = NULL;
2621 #ifdef SPI_KEYEVENT_DEBUG
2622 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2625 #endif /* HAVE_XEVIE */
2627 private = g_new0 (DEControllerPrivateData, 1);
2628 gettimeofday (&private->last_press_time, NULL);
2629 gettimeofday (&private->last_release_time, NULL);
2630 g_object_set_qdata (G_OBJECT (device_event_controller),
2631 spi_dec_private_quark,
2633 spi_controller_register_with_devices (device_event_controller);
2637 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2638 const XEvent *event)
2640 Accessibility_DeviceEvent key_event;
2643 g_assert (event->type == KeyPress || event->type == KeyRelease);
2645 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2647 if (controller->xevie_display == NULL)
2648 spi_controller_update_key_grabs (controller, &key_event);
2650 /* relay to listeners, and decide whether to consume it or not */
2651 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2652 g_free(key_event.event_string);
2657 spi_device_event_controller_new (SpiRegistry *registry)
2659 SpiDEController *retval = g_object_new (
2660 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2662 retval->registry = g_object_ref (registry);
2664 spi_dec_init_mouse_listener (registry);
2665 /* TODO: kill mouse listener on finalize */
2670 is_key_released (KeyCode code)
2675 XQueryKeymap (spi_get_display (), keys);
2676 down = BIT (keys, code);
2681 check_release (gpointer data)
2684 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2685 KeyCode code = event->hw_code;
2687 released = is_key_released (code);
2691 check_release_handler = 0;
2692 event->type = Accessibility_KEY_RELEASED_EVENT;
2693 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2695 return (released == 0);
2698 static void wait_for_release_event (XEvent *event,
2699 SpiDEController *controller)
2701 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2702 saved_controller = controller;
2703 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2706 static DRouteMethod methods[] =
2708 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2709 { impl_register_device_listener, "registerDeviceListener" },
2710 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2711 { impl_deregister_device_listener, "deregisterDeviceListener" },
2712 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2713 { impl_generate_mouse_event, "generateMouseEvent" },
2714 { impl_notify_listeners_sync, "notifyListenersSync" },
2715 { impl_notify_listeners_async, "notifyListenersAsync" },
2720 spi_registry_initialize_dec_interface (DRouteData * data)
2722 droute_add_interface (data, "org.freedesktop.atspi.DeviceEventController", methods,