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 <atk-adaptor/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"
64 #include "libspi/keymasks.h"
66 KeySym ucs2keysym (long ucs);
67 long keysym2ucs(KeySym keysym);
69 #define CHECK_RELEASE_DELAY 20
70 #define BIT(c, x) (c[x/8]&(1<<(x%8)))
71 static guint check_release_handler = 0;
72 static Accessibility_DeviceEvent pressed_event;
73 static SpiDEController *saved_controller;
74 static void wait_for_release_event (XEvent *event, SpiDEController *controller);
76 /* Our parent Gtk object type */
77 #define PARENT_TYPE G_TYPE_OBJECT
79 /* A pointer to our parent object class */
80 static int spi_error_code = 0;
81 static GdkPoint last_mouse_pos_static = {0, 0};
82 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
83 static unsigned int mouse_mask_state = 0;
84 static unsigned int mouse_button_mask =
85 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
86 static unsigned int key_modifier_mask =
87 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
88 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
90 static GQuark spi_dec_private_quark = 0;
91 static XModifierKeymap* xmkeymap = NULL;
93 static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
97 SPI_DEVICE_TYPE_MOUSE,
98 SPI_DEVICE_TYPE_LAST_DEFINED
99 } SpiDeviceTypeCategory;
102 guint ref_count : 30;
103 guint pending_add : 1;
104 guint pending_remove : 1;
106 Accessibility_ControllerEventMask mod_mask;
107 dbus_uint32_t key_val; /* KeyCode */
108 } DEControllerGrabMask;
113 SpiDeviceTypeCategory type;
115 } DEControllerListener;
118 DEControllerListener listener;
121 Accessibility_ControllerEventMask mask;
122 Accessibility_EventListenerMode *mode;
123 } DEControllerKeyListener;
126 unsigned int last_press_keycode;
127 unsigned int last_release_keycode;
128 struct timeval last_press_time;
129 struct timeval last_release_time;
131 int xkb_major_extension_opcode;
132 int xkb_base_event_code;
133 int xkb_base_error_code;
134 unsigned int xkb_latch_mask;
135 unsigned int pending_xkb_mod_relatch_mask;
137 KeyCode reserved_keycode;
138 KeySym reserved_keysym;
139 guint reserved_reset_timeout;
140 } DEControllerPrivateData;
142 static void spi_controller_register_with_devices (SpiDEController *controller);
143 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
144 Accessibility_DeviceEvent *recv);
145 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
146 DEControllerListener *l);
147 static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
148 const XEvent *event);
149 static void spi_controller_deregister_device_listener (SpiDEController *controller,
150 DEControllerListener *listener);
151 static void spi_deregister_controller_key_listener (SpiDEController *controller,
152 DEControllerKeyListener *key_listener);
153 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
154 const Accessibility_DeviceEvent *event);
156 static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
157 const Accessibility_DeviceEvent *event);
158 static gboolean spi_clear_error_state (void);
159 static gboolean spi_dec_poll_mouse_moved (gpointer data);
160 static gboolean spi_dec_poll_mouse_moving (gpointer data);
161 static gboolean spi_dec_poll_mouse_idle (gpointer data);
163 #define spi_get_display() GDK_DISPLAY()
165 G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
167 /* Private methods */
170 keysym_mod_mask (KeySym keysym, KeyCode keycode)
172 /* we really should use XKB and look directly at the keymap */
173 /* this is very inelegant */
174 Display *display = spi_get_display ();
175 unsigned int mods_rtn = 0;
176 unsigned int retval = 0;
179 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
180 (sym_rtn == keysym)) {
183 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
184 (sym_rtn == keysym)) {
187 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
188 (sym_rtn == keysym)) {
191 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
192 (sym_rtn == keysym)) {
195 else if (XkbLookupKeySym (display, keycode,
196 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
197 (sym_rtn == keysym)) {
198 retval = (Mod2Mask | ShiftMask);
200 else if (XkbLookupKeySym (display, keycode,
201 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
202 (sym_rtn == keysym)) {
203 retval = (Mod3Mask | ShiftMask);
205 else if (XkbLookupKeySym (display, keycode,
206 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
207 (sym_rtn == keysym)) {
208 retval = (Mod4Mask | ShiftMask);
216 spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
219 Display *dpy = spi_get_display ();
221 if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
223 fprintf (stderr, "ERROR getting map\n");
227 if (desc && desc->map)
229 gint offset = desc->map->key_sym_map[keycode].offset;
230 desc->map->syms[offset] = keysym;
234 fprintf (stderr, "Error changing key map: empty server structure\n");
236 XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
238 * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
239 * would be far preferable.
240 * HOWEVER it does not seem to work using XFree 4.3.
242 /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
245 XkbFreeKeyboard (desc, 0, TRUE);
254 spi_dec_reset_reserved (gpointer data)
256 DEControllerPrivateData *priv = data;
257 spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
258 priv->reserved_reset_timeout = 0;
263 keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
266 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
269 DEControllerPrivateData *priv = (DEControllerPrivateData *)
270 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
271 /* if there's no keycode available, fix it */
272 if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
274 keycode = priv->reserved_keycode;
276 * queue a timer to restore the old keycode. Ugly, but required
277 * due to races / asynchronous X delivery.
278 * Long-term fix is to extend the X keymap here instead of replace entries.
280 priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
286 *modmask = keysym_mod_mask (keysym, keycode);
290 static DEControllerGrabMask *
291 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
293 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
295 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
297 clone->ref_count = 1;
298 clone->pending_add = TRUE;
299 clone->pending_remove = FALSE;
305 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
311 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
313 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
314 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
322 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
327 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
329 DEControllerPrivateData *priv =
330 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
332 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
333 priv->xkb_latch_mask);
335 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
339 spi_dec_clear_unlatch_pending (SpiDEController *controller)
341 DEControllerPrivateData *priv =
342 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
343 priv->xkb_latch_mask = 0;
346 static void emit(SpiDEController *controller, const char *name, int first_type, ...)
350 va_start(arg, first_type);
351 spi_dbus_emit_valist(controller->registry->droute.bus, SPI_DBUS_PATH_DEC, SPI_DBUS_INTERFACE_DEC, name, first_type, arg);
356 spi_dec_button_update_and_emit (SpiDEController *controller,
359 Accessibility_DeviceEvent mouse_e;
360 gchar event_name[24];
361 gboolean is_consumed = FALSE;
363 if ((mask_return & mouse_button_mask) !=
364 (mouse_mask_state & mouse_button_mask))
366 int button_number = 0;
367 gboolean is_down = False;
369 if (!(mask_return & Button1Mask) &&
370 (mouse_mask_state & Button1Mask))
372 mouse_mask_state &= ~Button1Mask;
375 else if ((mask_return & Button1Mask) &&
376 !(mouse_mask_state & Button1Mask))
378 mouse_mask_state |= Button1Mask;
382 else if (!(mask_return & Button2Mask) &&
383 (mouse_mask_state & Button2Mask))
385 mouse_mask_state &= ~Button2Mask;
388 else if ((mask_return & Button2Mask) &&
389 !(mouse_mask_state & Button2Mask))
391 mouse_mask_state |= Button2Mask;
395 else if (!(mask_return & Button3Mask) &&
396 (mouse_mask_state & Button3Mask))
398 mouse_mask_state &= ~Button3Mask;
401 else if ((mask_return & Button3Mask) &&
402 !(mouse_mask_state & Button3Mask))
404 mouse_mask_state |= Button3Mask;
408 else if (!(mask_return & Button4Mask) &&
409 (mouse_mask_state & Button4Mask))
411 mouse_mask_state &= ~Button4Mask;
414 else if ((mask_return & Button4Mask) &&
415 !(mouse_mask_state & Button4Mask))
417 mouse_mask_state |= Button4Mask;
421 else if (!(mask_return & Button5Mask) &&
422 (mouse_mask_state & Button5Mask))
424 mouse_mask_state &= ~Button5Mask;
427 else if ((mask_return & Button5Mask) &&
428 !(mouse_mask_state & Button5Mask))
430 mouse_mask_state |= Button5Mask;
436 fprintf (stderr, "Button %d %s\n",
437 button_number, (is_down) ? "Pressed" : "Released");
439 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
440 (is_down) ? 'p' : 'r');
441 /* TODO: FIXME distinguish between physical and
444 mouse_e.type = (is_down) ?
445 Accessibility_BUTTON_PRESSED_EVENT :
446 Accessibility_BUTTON_RELEASED_EVENT;
447 mouse_e.id = button_number;
448 mouse_e.hw_code = button_number;
449 mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
450 mouse_e.timestamp = 0;
451 mouse_e.event_string = "";
452 mouse_e.is_text = FALSE;
454 spi_controller_notify_mouselisteners (controller,
458 dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
459 emit(controller, event_name, DBUS_TYPE_UINT32, &x, DBUS_TYPE_UINT32, &y, DBUS_TYPE_INVALID);
462 spi_dec_set_unlatch_pending (controller, mask_return);
474 spi_dec_mouse_check (SpiDEController *controller,
475 int *x, int *y, gboolean *moved)
477 int win_x_return,win_y_return;
478 unsigned int mask_return;
479 Window root_return, child_return;
480 Display *display = spi_get_display ();
483 XQueryPointer(display, DefaultRootWindow (display),
484 &root_return, &child_return,
486 &win_x_return, &win_y_return, &mask_return);
488 * Since many clients grab the pointer, and X goes an automatic
489 * pointer grab on mouse-down, we often must detect mouse button events
490 * by polling rather than via a button grab.
491 * The while loop (rather than if) is used since it's possible that
492 * multiple buttons have changed state since we last checked.
494 if (mask_return != mouse_mask_state)
496 while (spi_dec_button_update_and_emit (controller, mask_return));
499 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
501 // TODO: combine these two signals?
502 dbus_uint32_t ix = *x, iy = *y;
503 emit(controller, "mouse_abs", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
504 ix -= last_mouse_pos->x;
505 iy -= last_mouse_pos->y;
506 emit(controller, "mouse_rel", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
507 last_mouse_pos->x = *x;
508 last_mouse_pos->y = *y;
520 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
523 dbus_uint32_t d1, d2;
526 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
527 prev_mask, current_mask);
530 /* set bits for the virtual modifiers like NUMLOCK */
531 if (prev_mask & _numlock_physical_mask)
532 prev_mask |= SPI_KEYMASK_NUMLOCK;
533 if (current_mask & _numlock_physical_mask)
534 current_mask |= SPI_KEYMASK_NUMLOCK;
536 d1 = prev_mask & key_modifier_mask;
537 d2 = current_mask & key_modifier_mask;
538 emit(controller, "keyboard_modifiers", DBUS_TYPE_UINT32, &d1, DBUS_TYPE_UINT32, &d2, DBUS_TYPE_INVALID);
542 spi_dec_poll_mouse_moved (gpointer data)
544 SpiRegistry *registry = SPI_REGISTRY (data);
545 SpiDEController *controller = registry->de_controller;
550 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
552 if ((mask_return & key_modifier_mask) !=
553 (mouse_mask_state & key_modifier_mask))
555 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
556 mouse_mask_state = mask_return;
563 spi_dec_poll_mouse_idle (gpointer data)
565 if (! spi_dec_poll_mouse_moved (data))
569 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
575 spi_dec_poll_mouse_moving (gpointer data)
577 if (spi_dec_poll_mouse_moved (data))
581 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
586 #ifdef WE_NEED_UGRAB_MOUSE
588 spi_dec_ungrab_mouse (gpointer data)
590 Display *display = spi_get_display ();
593 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
594 XDefaultRootWindow (spi_get_display ()));
601 spi_dec_init_mouse_listener (SpiRegistry *registry)
604 Display *display = spi_get_display ();
606 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
611 if (XGrabButton (display, AnyButton, AnyModifier,
612 gdk_x11_get_default_root_xwindow (),
613 True, ButtonPressMask | ButtonReleaseMask,
614 GrabModeSync, GrabModeAsync, None, None) != Success) {
616 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
620 XSync (display, False);
622 fprintf (stderr, "mouse buttons grabbed\n");
629 * Eventually we can use this to make the marshalling of mask types
630 * more sane, but for now we just use this to detect
631 * the use of 'virtual' masks such as numlock and convert them to
632 * system-specific mask values (i.e. ModMask).
635 static Accessibility_ControllerEventMask
636 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
638 Accessibility_ControllerEventMask tmp_mask;
639 gboolean has_numlock;
641 has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
645 tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
646 tmp_mask |= _numlock_physical_mask;
652 static DEControllerKeyListener *
653 spi_dec_key_listener_new (const char *app_path,
656 const Accessibility_ControllerEventMask mask,
657 const dbus_uint32_t types,
658 const Accessibility_EventListenerMode *mode)
660 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
661 key_listener->listener.app_path = g_strdup(app_path);
662 key_listener->listener.path = g_strdup(path);
663 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
664 key_listener->keys = keys;
665 key_listener->mask = spi_dec_translate_mask (mask);
666 key_listener->listener.types = types;
669 key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
670 memcpy(key_listener->mode, mode, sizeof(*mode));
673 key_listener->mode = NULL;
676 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
677 (unsigned int) key_listener->mask,
678 (int) (mode ? mode->global : 0),
679 (void *) key_listener->keys,
680 (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
686 static DEControllerListener *
687 spi_dec_listener_new (const char *app_path,
691 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
692 listener->app_path = g_strdup(app_path);
693 listener->path = g_strdup(path);
694 listener->type = SPI_DEVICE_TYPE_MOUSE;
695 listener->types = types;
699 static DEControllerListener *
700 spi_listener_clone (DEControllerListener *listener)
702 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
703 clone->app_path = g_strdup (listener->app_path);
704 clone->path = g_strdup (listener->path);
705 clone->type = listener->type;
706 clone->types = listener->types;
710 static GSList *keylist_clone (GSList *s)
715 for (l = s; l; l = g_slist_next(l))
717 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
720 Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
721 kd->keycode = kds->keycode;
722 kd->keysym = kds->keysym;
723 kd->keystring = g_strdup(kds->keystring);
724 d = g_slist_append(d, kd);
730 static DEControllerKeyListener *
731 spi_key_listener_clone (DEControllerKeyListener *key_listener)
733 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
734 clone->listener.app_path = g_strdup (key_listener->listener.app_path);
735 clone->listener.path = g_strdup (key_listener->listener.path);
736 clone->listener.type = SPI_DEVICE_TYPE_KBD;
737 clone->keys = keylist_clone (key_listener->keys);
738 clone->mask = key_listener->mask;
739 clone->listener.types = key_listener->listener.types;
740 if (key_listener->mode)
742 clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
743 if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
750 static void keylist_free(GSList *keys)
754 for (l = keys; l; l = g_slist_next(l))
756 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
757 g_free(kd->keystring);
764 spi_key_listener_data_free (DEControllerKeyListener *key_listener)
766 keylist_free(key_listener->keys);
767 if (key_listener->mode) g_free(key_listener->mode);
768 g_free (key_listener);
772 spi_key_listener_clone_free (DEControllerKeyListener *clone)
774 spi_key_listener_data_free (clone);
778 spi_listener_clone_free (DEControllerListener *clone)
780 g_free (clone->path);
781 g_free (clone->app_path);
786 spi_dec_listener_free (DEControllerListener *listener)
788 g_free (listener->app_path);
789 g_free (listener->path);
790 if (listener->type == SPI_DEVICE_TYPE_KBD)
791 spi_key_listener_data_free ((DEControllerKeyListener *) listener);
795 _register_keygrab (SpiDEController *controller,
796 DEControllerGrabMask *grab_mask)
800 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
801 spi_grab_mask_compare_values);
804 DEControllerGrabMask *cur_mask = l->data;
806 cur_mask->ref_count++;
807 if (cur_mask->pending_remove)
809 cur_mask->pending_remove = FALSE;
814 controller->keygrabs_list =
815 g_list_prepend (controller->keygrabs_list,
816 spi_grab_mask_clone (grab_mask));
821 _deregister_keygrab (SpiDEController *controller,
822 DEControllerGrabMask *grab_mask)
826 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
827 spi_grab_mask_compare_values);
831 DEControllerGrabMask *cur_mask = l->data;
833 cur_mask->ref_count--;
834 if (cur_mask->ref_count <= 0)
836 cur_mask->pending_remove = TRUE;
841 DBG (1, g_warning ("De-registering non-existant grab"));
846 handle_keygrab (SpiDEController *controller,
847 DEControllerKeyListener *key_listener,
848 void (*process_cb) (SpiDEController *controller,
849 DEControllerGrabMask *grab_mask))
851 DEControllerGrabMask grab_mask = { 0 };
853 grab_mask.mod_mask = key_listener->mask;
854 if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
856 grab_mask.key_val = AnyKey;
858 fprintf (stderr, "AnyKey grab!");
860 process_cb (controller, &grab_mask);
866 for (l = key_listener->keys; l; l = g_slist_next(l))
868 Accessibility_KeyDefinition *keydef = l->data;
869 long int key_val = keydef->keysym;
870 /* X Grabs require keycodes, not keysyms */
871 if (keydef->keystring && keydef->keystring[0])
873 key_val = XStringToKeysym(keydef->keystring);
877 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
881 key_val = keydef->keycode;
883 grab_mask.key_val = key_val;
884 process_cb (controller, &grab_mask);
890 spi_controller_register_global_keygrabs (SpiDEController *controller,
891 DEControllerKeyListener *key_listener)
893 handle_keygrab (controller, key_listener, _register_keygrab);
894 if (controller->xevie_display == NULL)
895 return spi_controller_update_key_grabs (controller, NULL);
901 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
902 DEControllerKeyListener *key_listener)
904 handle_keygrab (controller, key_listener, _deregister_keygrab);
905 if (controller->xevie_display == NULL)
906 spi_controller_update_key_grabs (controller, NULL);
910 spi_controller_register_device_listener (SpiDEController *controller,
911 DEControllerListener *listener)
913 DEControllerKeyListener *key_listener;
915 switch (listener->type) {
916 case SPI_DEVICE_TYPE_KBD:
917 key_listener = (DEControllerKeyListener *) listener;
919 controller->key_listeners = g_list_prepend (controller->key_listeners,
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);
932 DBG (1, g_warning ("listener registration for unknown device type.\n"));
938 static gboolean Accessibility_DeviceEventListener_notifyEvent(SpiRegistry *registry, DEControllerListener *listener, const Accessibility_DeviceEvent *key_event)
940 DBusMessage *message = dbus_message_new_method_call(listener->app_path, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
942 dbus_bool_t consumed = FALSE;
944 dbus_error_init(&error);
945 if (spi_dbus_marshall_deviceEvent(message, key_event))
947 // TODO: Evaluate performance: perhaps rework this whole architecture
948 // to avoid blocking calls
949 DBusMessage *reply = dbus_connection_send_with_reply_and_block(registry->droute.bus, message, 1000, &error);
953 dbus_error_init(&error);
954 dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
955 dbus_message_unref(reply);
958 dbus_message_unref(message);
963 spi_controller_notify_mouselisteners (SpiDEController *controller,
964 const Accessibility_DeviceEvent *event)
967 GSList *notify = NULL, *l2;
968 GList **listeners = &controller->mouse_listeners;
969 gboolean is_consumed;
970 #ifdef SPI_KEYEVENT_DEBUG
971 gboolean found = FALSE;
978 for (l = *listeners; l; l = l->next)
980 DEControllerListener *listener = l->data;
982 if (spi_eventtype_seq_contains_event (listener->types, event))
984 /* we clone (don't dup) the listener, to avoid refcount inc. */
985 notify = g_slist_prepend (notify,
986 spi_listener_clone (listener));
987 #ifdef SPI_KEYEVENT_DEBUG
993 #ifdef SPI_KEYEVENT_DEBUG
996 g_print ("no match for event\n");
1000 is_consumed = FALSE;
1001 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1003 DEControllerListener *listener = l2->data;
1005 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller->registry, listener, event);
1007 spi_listener_clone_free ((DEControllerListener *) l2->data);
1010 for (; l2; l2 = l2->next)
1012 DEControllerListener *listener = l2->data;
1013 spi_listener_clone_free (listener);
1014 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
1017 g_slist_free (notify);
1020 if (is_consumed) g_message ("consumed\n");
1026 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
1029 Accessibility_DeviceEvent mouse_e;
1030 gchar event_name[24];
1031 gboolean is_consumed = FALSE;
1032 gboolean xkb_mod_unlatch_occurred;
1033 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
1034 dbus_uint32_t ix, iy;
1036 int button = xbutton_event->button;
1038 unsigned int mouse_button_state = xbutton_event->state;
1043 mouse_button_state |= Button1Mask;
1046 mouse_button_state |= Button2Mask;
1049 mouse_button_state |= Button3Mask;
1052 mouse_button_state |= Button4Mask;
1055 mouse_button_state |= Button5Mask;
1059 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
1060 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
1063 fprintf (stderr, "mouse button %d %s (%x)\n",
1064 xbutton_event->button,
1065 (xevent->type == ButtonPress) ? "Press" : "Release",
1066 mouse_button_state);
1068 snprintf (event_name, 22, "mouse:button_%d%c", button,
1069 (xevent->type == ButtonPress) ? 'p' : 'r');
1071 /* TODO: FIXME distinguish between physical and logical buttons */
1072 mouse_e.type = (xevent->type == ButtonPress) ?
1073 Accessibility_BUTTON_PRESSED_EVENT :
1074 Accessibility_BUTTON_RELEASED_EVENT;
1075 mouse_e.id = button;
1076 mouse_e.hw_code = button;
1077 mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
1078 mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
1079 mouse_e.event_string = "";
1080 mouse_e.is_text = FALSE;
1081 if ((mouse_button_state & mouse_button_mask) !=
1082 (mouse_mask_state & mouse_button_mask))
1084 if ((mouse_mask_state & key_modifier_mask) !=
1085 (mouse_button_state & key_modifier_mask))
1086 spi_dec_emit_modifier_event (controller,
1087 mouse_mask_state, mouse_button_state);
1088 mouse_mask_state = mouse_button_state;
1090 spi_controller_notify_mouselisteners (controller, &mouse_e);
1091 ix = last_mouse_pos->x;
1092 iy = last_mouse_pos->y;
1093 emit(controller, event_name, DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
1096 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
1097 xevent->type == ButtonRelease);
1099 /* if client wants to consume this event, and XKB latch state was
1100 * unset by this button event, we reset it
1102 if (is_consumed && xkb_mod_unlatch_occurred)
1103 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
1105 XAllowEvents (spi_get_display (),
1106 (is_consumed) ? SyncPointer : ReplayPointer,
1110 static GdkFilterReturn
1111 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
1113 XEvent *xevent = gdk_xevent;
1114 SpiDEController *controller;
1115 DEControllerPrivateData *priv;
1116 Display *display = spi_get_display ();
1117 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
1118 priv = (DEControllerPrivateData *)
1119 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1121 if (xevent->type == MappingNotify)
1124 if (xevent->type == KeyPress || xevent->type == KeyRelease)
1126 if (controller->xevie_display == NULL)
1128 gboolean is_consumed;
1131 spi_device_event_controller_forward_key_event (controller, xevent);
1138 n_events = XPending (display);
1140 #ifdef SPI_KEYEVENT_DEBUG
1141 g_print ("Number of events pending: %d\n", n_events);
1143 for (i = 0; i < n_events; i++)
1145 XNextEvent (display, &next_event);
1146 if (next_event.type != KeyPress &&
1147 next_event.type != KeyRelease)
1148 g_warning ("Unexpected event type %d in queue", next_event.type);
1151 XAllowEvents (display, AsyncKeyboard, CurrentTime);
1153 XUngrabKeyboard (display, CurrentTime);
1157 if (xevent->type == KeyPress)
1158 wait_for_release_event (xevent, controller);
1159 XAllowEvents (display, ReplayKeyboard, CurrentTime);
1163 return GDK_FILTER_CONTINUE;
1165 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
1167 spi_device_event_controller_forward_mouse_event (controller, xevent);
1169 if (xevent->type == priv->xkb_base_event_code)
1171 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1172 /* ugly but probably necessary...*/
1173 XSynchronize (display, TRUE);
1175 if (xkb_ev->xkb_type == XkbStateNotify)
1177 XkbStateNotifyEvent *xkb_snev =
1178 (XkbStateNotifyEvent *) xkb_ev;
1179 /* check the mouse, to catch mouse events grabbed by
1180 * another client; in case we should revert this XKB delatch
1182 if (!priv->pending_xkb_mod_relatch_mask)
1186 spi_dec_mouse_check (controller, &x, &y, &moved);
1188 /* we check again, since the previous call may have
1189 changed this flag */
1190 if (priv->pending_xkb_mod_relatch_mask)
1192 unsigned int feedback_mask;
1193 #ifdef SPI_XKB_DEBUG
1194 fprintf (stderr, "relatching %x\n",
1195 priv->pending_xkb_mod_relatch_mask);
1197 /* temporarily turn off the latch bell, if it's on */
1198 XkbGetControls (display,
1199 XkbAccessXFeedbackMask,
1201 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1202 if (feedback_mask & XkbAX_StickyKeysFBMask)
1204 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1206 priv->xkb_desc->ctrls->ax_options
1207 &= ~(XkbAX_StickyKeysFBMask);
1208 XkbChangeControls (display, priv->xkb_desc, &changes);
1210 /* TODO: account for lock as well as latch */
1211 XkbLatchModifiers (display,
1213 priv->pending_xkb_mod_relatch_mask,
1214 priv->pending_xkb_mod_relatch_mask);
1215 if (feedback_mask & XkbAX_StickyKeysFBMask)
1217 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1219 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1220 XkbChangeControls (display, priv->xkb_desc, &changes);
1222 #ifdef SPI_XKB_DEBUG
1223 fprintf (stderr, "relatched %x\n",
1224 priv->pending_xkb_mod_relatch_mask);
1226 priv->pending_xkb_mod_relatch_mask = 0;
1230 priv->xkb_latch_mask = xkb_snev->latched_mods;
1234 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1235 XSynchronize (display, FALSE);
1238 return GDK_FILTER_CONTINUE;
1242 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1244 if (error->error_code == BadAccess)
1246 g_message ("Could not complete key grab: grab already in use.\n");
1247 spi_error_code = BadAccess;
1252 return (*x_default_error_handler) (display, error);
1257 spi_controller_register_with_devices (SpiDEController *controller)
1259 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1260 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1261 /* FIXME: should check for extension first! */
1262 XTestGrabControl (spi_get_display (), True);
1264 /* calls to device-specific implementations and routines go here */
1265 /* register with: keyboard hardware code handler */
1266 /* register with: (translated) keystroke handler */
1268 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1269 &priv->xkb_major_extension_opcode,
1270 &priv->xkb_base_event_code,
1271 &priv->xkb_base_error_code, NULL, NULL);
1275 guint64 reserved = 0;
1276 priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
1277 XkbSelectEvents (spi_get_display (),
1279 XkbStateNotifyMask, XkbStateNotifyMask);
1280 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1282 for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
1284 if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
1286 if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
1288 /* don't use this one if there's a grab client! */
1289 gdk_error_trap_push ();
1290 XGrabKey (spi_get_display (), i, 0,
1291 gdk_x11_get_default_root_xwindow (),
1293 GrabModeSync, GrabModeSync);
1294 XSync (spi_get_display (), TRUE);
1295 XUngrabKey (spi_get_display (), i, 0,
1296 gdk_x11_get_default_root_xwindow ());
1297 if (!gdk_error_trap_pop ())
1307 priv->reserved_keycode = reserved;
1308 priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1312 priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
1313 priv->reserved_keysym = XK_numbersign;
1315 #ifdef SPI_RESERVED_DEBUG
1317 sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
1318 fprintf (stderr, "%x\n", sym);
1319 fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
1321 XKeysymToString (XKeycodeToKeysym (spi_get_display (),
1326 gdk_window_add_filter (NULL, global_filter_fn, controller);
1328 gdk_window_set_events (gdk_get_default_root_window (),
1329 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1331 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1335 spi_key_set_contains_key (GSList *key_set,
1336 const Accessibility_DeviceEvent *key_event)
1344 g_print ("null key set!");
1348 len = g_slist_length (key_set);
1350 if (len == 0) /* special case, means "all keys/any key" */
1353 g_print ("anykey\n");
1358 for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1360 Accessibility_KeyDefinition *kd = l->data;
1361 #ifdef SPI_KEYEVENT_DEBUG
1362 g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1366 (int) key_event->id,
1367 (int) key_event->hw_code,
1368 key_event->event_string);
1370 if (kd->keysym == (dbus_uint32_t) key_event->id)
1374 if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1378 if (key_event->event_string && key_event->event_string[0] &&
1379 !strcmp (kd->keystring, key_event->event_string))
1389 spi_eventtype_seq_contains_event (dbus_uint32_t types,
1390 const Accessibility_DeviceEvent *event)
1392 if (types == 0) /* special case, means "all events/any event" */
1397 return (types & (1 << event->type));
1401 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1402 DEControllerKeyListener *listener,
1403 dbus_bool_t is_system_global)
1405 if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1406 spi_key_set_contains_key (listener->keys, key_event) &&
1407 spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
1408 (is_system_global == listener->mode->global))
1419 spi_controller_notify_keylisteners (SpiDEController *controller,
1420 Accessibility_DeviceEvent *key_event,
1421 dbus_bool_t is_system_global)
1424 GSList *notify = NULL, *l2;
1425 GList **key_listeners = &controller->key_listeners;
1426 gboolean is_consumed;
1433 /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1434 if (key_event->modifiers & _numlock_physical_mask)
1435 key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1437 for (l = *key_listeners; l; l = l->next)
1439 DEControllerKeyListener *key_listener = l->data;
1441 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1443 /* we clone (don't dup) the listener, to avoid refcount inc. */
1444 notify = g_slist_prepend (notify,
1445 spi_key_listener_clone (key_listener));
1449 #ifdef SPI_KEYEVENT_DEBUG
1452 g_print ("no match for event\n");
1456 is_consumed = FALSE;
1457 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1459 DEControllerKeyListener *key_listener = l2->data;
1461 is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller->registry, &key_listener->listener, key_event) &&
1462 key_listener->mode->preemptive;
1464 spi_key_listener_clone_free (key_listener);
1467 for (; l2; l2 = l2->next)
1469 DEControllerKeyListener *key_listener = l2->data;
1470 spi_key_listener_clone_free (key_listener);
1471 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1474 g_slist_free (notify);
1477 if (is_consumed) g_message ("consumed\n");
1483 spi_clear_error_state (void)
1485 gboolean retval = spi_error_code != 0;
1490 static Accessibility_DeviceEvent
1491 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1493 Accessibility_DeviceEvent key_event;
1495 const int cbuf_bytes = 20;
1499 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1500 key_event.id = (dbus_int32_t)(keysym);
1501 key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
1502 if (((XEvent *) x_key_event)->type == KeyPress)
1504 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1508 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1510 key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
1511 key_event.is_text = FALSE;
1515 key_event.event_string = g_strdup ("space");
1518 key_event.event_string = g_strdup ("Tab");
1521 key_event.event_string = g_strdup ("Backspace");
1524 key_event.event_string = g_strdup ("Return");
1527 key_event.event_string = g_strdup ("Home");
1530 key_event.event_string = g_strdup ("Page_Down");
1533 key_event.event_string = g_strdup ("Page_Up");
1536 key_event.event_string = g_strdup ("F1");
1539 key_event.event_string = g_strdup ("F2");
1542 key_event.event_string = g_strdup ("F3");
1545 key_event.event_string = g_strdup ("F4");
1548 key_event.event_string = g_strdup ("F5");
1551 key_event.event_string = g_strdup ("F6");
1554 key_event.event_string = g_strdup ("F7");
1557 key_event.event_string = g_strdup ("F8");
1560 key_event.event_string = g_strdup ("F9");
1563 key_event.event_string = g_strdup ("F10");
1566 key_event.event_string = g_strdup ("F11");
1569 key_event.event_string = g_strdup ("F12");
1572 key_event.event_string = g_strdup ("End");
1575 key_event.event_string = g_strdup ("Escape");
1578 key_event.event_string = g_strdup ("Up");
1581 key_event.event_string = g_strdup ("Down");
1584 key_event.event_string = g_strdup ("Left");
1587 key_event.event_string = g_strdup ("Right");
1593 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1594 key_event.event_string = g_strdup (cbuf);
1595 c = keysym2ucs (keysym);
1596 if (c > 0 && !g_unichar_iscntrl (c))
1598 key_event.is_text = TRUE;
1599 /* incorrect for some composed chars? */
1604 key_event.event_string = g_strdup ("");
1608 key_event.timestamp = (dbus_uint32_t) x_key_event->time;
1609 #ifdef SPI_KEYEVENT_DEBUG
1611 char *pressed_str = "pressed";
1612 char *released_str = "released";
1615 if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
1616 state_ptr = pressed_str;
1618 state_ptr = released_str;
1621 "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
1622 (unsigned long) keysym,
1624 keysym ? (int) keysym : '*',
1625 (int) x_key_event->state,
1626 key_event.event_string,
1627 key_event.event_string[0],
1628 (key_event.is_text == TRUE) ? "(text)" : "(not text)");
1632 fprintf (stderr, "%s%c\n",
1633 (x_key_event->state & Mod1Mask)?"Alt-":"",
1634 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1635 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1636 fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
1637 #endif /* SPI_DEBUG */
1642 spi_controller_update_key_grabs (SpiDEController *controller,
1643 Accessibility_DeviceEvent *recv)
1646 gboolean update_failed = FALSE;
1647 KeyCode keycode = 0;
1649 g_return_val_if_fail (controller != NULL, FALSE);
1652 * masks known to work with default RH 7.1+:
1653 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1654 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1655 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1656 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1658 * ControlMask grabs are broken, must be in use already
1661 keycode = keycode_for_keysym (controller, recv->id, NULL);
1662 for (l = controller->keygrabs_list; l; l = next)
1665 gboolean re_issue_grab;
1666 DEControllerGrabMask *grab_mask = l->data;
1670 re_issue_grab = recv &&
1671 (recv->modifiers & grab_mask->mod_mask) &&
1672 (grab_mask->key_val == keycode);
1675 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1676 (long int) grab_mask->key_val,
1677 (long int) grab_mask->mod_mask,
1678 grab_mask->pending_add ? '+' : '.',
1679 grab_mask->pending_remove ? '-' : '.',
1680 re_issue_grab ? "re-issue": "");
1685 if (grab_mask->pending_add && grab_mask->pending_remove)
1689 else if (grab_mask->pending_remove)
1692 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1694 XUngrabKey (spi_get_display (),
1696 grab_mask->mod_mask,
1697 gdk_x11_get_default_root_xwindow ());
1701 else if (grab_mask->pending_add || re_issue_grab)
1705 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1707 XGrabKey (spi_get_display (),
1709 grab_mask->mod_mask,
1710 gdk_x11_get_default_root_xwindow (),
1714 XSync (spi_get_display (), False);
1715 update_failed = spi_clear_error_state ();
1716 if (update_failed) {
1717 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1722 grab_mask->pending_add = FALSE;
1723 grab_mask->pending_remove = FALSE;
1727 g_assert (grab_mask->ref_count <= 0);
1729 controller->keygrabs_list = g_list_delete_link (
1730 controller->keygrabs_list, l);
1732 spi_grab_mask_free (grab_mask);
1737 return ! update_failed;
1741 * Implemented GObject::finalize
1744 spi_device_event_controller_object_finalize (GObject *object)
1746 SpiDEController *controller;
1747 DEControllerPrivateData *private;
1748 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1749 GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1751 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1753 /* disconnect any special listeners, get rid of outstanding keygrabs */
1754 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1757 if (controller->xevie_display != NULL)
1759 XevieEnd(controller->xevie_display);
1760 #ifdef SPI_KEYEVENT_DEBUG
1761 printf("XevieEnd(dpy) finished \n");
1766 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1767 if (private->xkb_desc)
1768 XkbFreeKeyboard (private->xkb_desc, 0, True);
1770 parent_class->finalize (object);
1774 * DBus Accessibility::DEController::registerKeystrokeListener
1775 * method implementation
1777 static DBusMessage *
1778 impl_register_keystroke_listener (DBusConnection *bus,
1779 DBusMessage *message,
1782 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1783 DEControllerKeyListener *dec_listener;
1784 DBusMessageIter iter, iter_array;
1786 GSList *keys = NULL;
1787 dbus_int32_t mask, type;
1788 Accessibility_EventListenerMode *mode;
1793 dbus_message_iter_init(message, &iter);
1794 // TODO: verify type signature
1795 dbus_message_iter_get_basic(&iter, &path);
1796 dbus_message_iter_next(&iter);
1797 dbus_message_iter_recurse(&iter, &iter_array);
1798 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1800 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1801 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))
1805 kd->keystring = g_strdup (keystring);
1806 keys = g_slist_append(keys, kd);
1808 dbus_message_iter_next(&iter);
1809 dbus_message_iter_get_basic(&iter, &mask);
1810 dbus_message_iter_next(&iter);
1811 dbus_message_iter_get_basic(&iter, &type);
1812 dbus_message_iter_next(&iter);
1813 mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1816 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);
1819 fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1820 dbus_message_get_sender(message), path, (unsigned long) mask);
1822 dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1823 ret = spi_controller_register_device_listener (
1824 controller, (DEControllerListener *) dec_listener);
1825 reply = dbus_message_new_method_return (message);
1828 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1834 * DBus Accessibility::DEController::registerDeviceEventListener
1835 * method implementation
1837 static DBusMessage *
1838 impl_register_device_listener (DBusConnection *bus,
1839 DBusMessage *message,
1842 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1843 DEControllerListener *dec_listener;
1846 dbus_int32_t event_types;
1850 dbus_error_init(&error);
1851 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1853 return spi_dbus_general_error (message);
1855 dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1856 ret = spi_controller_register_device_listener (
1857 controller, (DEControllerListener *) dec_listener);
1858 reply = dbus_message_new_method_return (message);
1861 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1867 DBusConnection *bus;
1868 DEControllerListener *listener;
1869 } RemoveListenerClosure;
1871 static SpiReEntrantContinue
1872 remove_listener_cb (GList * const *list,
1875 DEControllerListener *listener = (*list)->data;
1876 RemoveListenerClosure *ctx = user_data;
1878 if (!strcmp(ctx->listener->app_path, listener->app_path) &&
1879 !strcmp(ctx->listener->path, listener->path))
1881 spi_re_entrant_list_delete_link (list);
1882 spi_dec_listener_free (listener);
1885 return SPI_RE_ENTRANT_CONTINUE;
1888 static SpiReEntrantContinue
1889 copy_key_listener_cb (GList * const *list,
1892 DEControllerKeyListener *key_listener = (*list)->data;
1893 RemoveListenerClosure *ctx = user_data;
1895 if (!strcmp(ctx->listener->app_path, key_listener->listener.app_path) &&
1896 !strcmp(ctx->listener->path, key_listener->listener.path))
1898 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1899 DEControllerKeyListener *ctx_key_listener =
1900 (DEControllerKeyListener *) ctx->listener;
1901 keylist_free (ctx_key_listener->keys);
1902 ctx_key_listener->keys = keylist_clone(key_listener->keys);
1905 return SPI_RE_ENTRANT_CONTINUE;
1909 spi_controller_deregister_device_listener (SpiDEController *controller,
1910 DEControllerListener *listener)
1912 RemoveListenerClosure ctx;
1914 ctx.bus = controller->registry->droute.bus;
1915 ctx.listener = listener;
1917 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1918 remove_listener_cb, &ctx);
1922 spi_deregister_controller_key_listener (SpiDEController *controller,
1923 DEControllerKeyListener *key_listener)
1925 RemoveListenerClosure ctx;
1927 ctx.bus = controller->registry->droute.bus;
1928 ctx.listener = (DEControllerListener *) key_listener;
1930 /* special case, copy keyset from existing controller list entry */
1931 if (g_slist_length(key_listener->keys) == 0)
1933 spi_re_entrant_list_foreach (&controller->key_listeners,
1934 copy_key_listener_cb, &ctx);
1937 spi_controller_deregister_global_keygrabs (controller, key_listener);
1939 spi_re_entrant_list_foreach (&controller->key_listeners,
1940 remove_listener_cb, &ctx);
1945 * DBus Accessibility::DEController::deregisterKeystrokeListener
1946 * method implementation
1948 static DBusMessage *
1949 impl_deregister_keystroke_listener (DBusConnection *bus,
1950 DBusMessage *message,
1953 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
1954 DEControllerKeyListener *key_listener;
1955 DBusMessageIter iter, iter_array;
1957 GSList *keys = NULL;
1958 dbus_int32_t mask, type;
1961 dbus_message_iter_init(message, &iter);
1962 // TODO: verify type signature
1963 dbus_message_iter_get_basic(&iter, &path);
1964 dbus_message_iter_next(&iter);
1965 dbus_message_iter_recurse(&iter, &iter_array);
1966 while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1968 Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1971 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))
1975 kd->keystring = g_strdup (keystring);
1976 keys = g_slist_append(keys, kd);
1978 dbus_message_iter_next(&iter);
1979 dbus_message_iter_get_basic(&iter, &mask);
1980 dbus_message_iter_next(&iter);
1981 dbus_message_iter_get_basic(&iter, &type);
1982 dbus_message_iter_next(&iter);
1983 key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1984 #ifdef SPI_DEREGISTER_DEBUG
1985 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1986 (void *) l, (unsigned long) mask->value);
1989 spi_deregister_controller_key_listener (controller, key_listener);
1991 spi_dec_listener_free ((DEControllerListener *) key_listener);
1992 reply = dbus_message_new_method_return (message);
1997 * DBus Accessibility::DEController::deregisterDeviceEventListener
1998 * method implementation
2000 static DBusMessage *
2001 impl_deregister_device_listener (DBusConnection *bus,
2002 DBusMessage *message,
2005 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2006 DEControllerListener *listener;
2009 dbus_int32_t event_types;
2012 dbus_error_init(&error);
2013 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
2015 return spi_dbus_general_error (message);
2017 listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
2018 spi_controller_deregister_device_listener (
2019 controller, listener);
2020 reply = dbus_message_new_method_return (message);
2024 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
2026 unsigned int retval = 0;
2027 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2028 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2030 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
2031 retval = XkbGetSlowKeysDelay (spi_get_display (),
2032 XkbUseCoreKbd, &bounce_delay);
2034 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2036 Status s = XkbGetControls (spi_get_display (),
2037 XkbAllControlsMask, priv->xkb_desc);
2040 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
2041 retval = priv->xkb_desc->ctrls->slow_keys_delay;
2046 #ifdef SPI_XKB_DEBUG
2047 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
2052 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
2054 unsigned int retval = 0;
2055 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2056 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2058 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
2059 retval = XkbGetBounceKeysDelay (spi_get_display (),
2060 XkbUseCoreKbd, &bounce_delay);
2062 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
2064 Status s = XkbGetControls (spi_get_display (),
2065 XkbAllControlsMask, priv->xkb_desc);
2068 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
2069 retval = priv->xkb_desc->ctrls->debounce_delay;
2074 #ifdef SPI_XKB_DEBUG
2075 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
2081 dec_synth_keycode_press (SpiDEController *controller,
2082 unsigned int keycode)
2084 unsigned int time = CurrentTime;
2085 unsigned int bounce_delay;
2086 unsigned int elapsed_msec;
2088 DEControllerPrivateData *priv =
2089 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2090 spi_dec_private_quark);
2091 if (keycode == priv->last_release_keycode)
2093 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
2096 gettimeofday (&tv, NULL);
2098 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
2099 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
2100 #ifdef SPI_XKB_DEBUG
2101 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2102 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
2104 #ifdef THIS_IS_BROKEN
2105 if (elapsed_msec < bounce_delay)
2106 time = bounce_delay - elapsed_msec + 1;
2108 time = bounce_delay + 10;
2109 /* fudge for broken XTest */
2111 #ifdef SPI_XKB_DEBUG
2112 fprintf (stderr, "waiting %d ms\n", time);
2116 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
2117 priv->last_press_keycode = keycode;
2118 XFlush (spi_get_display ());
2119 XSync (spi_get_display (), False);
2120 gettimeofday (&priv->last_press_time, NULL);
2125 dec_synth_keycode_release (SpiDEController *controller,
2126 unsigned int keycode)
2128 unsigned int time = CurrentTime;
2129 unsigned int slow_delay;
2130 unsigned int elapsed_msec;
2132 DEControllerPrivateData *priv =
2133 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
2134 spi_dec_private_quark);
2135 if (keycode == priv->last_press_keycode)
2137 slow_delay = dec_xkb_get_slowkeys_delay (controller);
2140 gettimeofday (&tv, NULL);
2142 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
2143 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
2144 #ifdef SPI_XKB_DEBUG
2145 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
2146 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
2148 #ifdef THIS_IS_BROKEN_DUNNO_WHY
2149 if (elapsed_msec < slow_delay)
2150 time = slow_delay - elapsed_msec + 1;
2152 time = slow_delay + 10;
2153 /* our XTest seems broken, we have to add slop as above */
2155 #ifdef SPI_XKB_DEBUG
2156 fprintf (stderr, "waiting %d ms\n", time);
2160 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
2161 priv->last_release_keycode = keycode;
2162 XSync (spi_get_display (), False);
2163 gettimeofday (&priv->last_release_time, NULL);
2168 dec_get_modifier_state (SpiDEController *controller)
2170 return mouse_mask_state;
2174 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
2176 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2177 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2179 if (priv->have_xkb) {
2180 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2181 modifiers, modifiers);
2184 for (mod_index=0;mod_index<8;mod_index++)
2185 if (modifiers & (1<<mod_index))
2186 dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
2192 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
2194 DEControllerPrivateData *priv = (DEControllerPrivateData *)
2195 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2197 if (priv->have_xkb) {
2198 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
2202 for (mod_index=0;mod_index<8;mod_index++)
2203 if (modifiers & (1<<mod_index))
2204 dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
2210 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
2212 return ucs2keysym ((long) unichar);
2216 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
2218 KeyCode key_synth_code;
2219 unsigned int modifiers, synth_mods, lock_mods;
2221 key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
2223 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
2225 /* TODO: set the modifiers accordingly! */
2226 modifiers = dec_get_modifier_state (controller);
2227 /* side-effect; we may unset mousebutton modifiers here! */
2230 if (synth_mods != modifiers) {
2231 lock_mods = synth_mods & ~modifiers;
2232 dec_lock_modifiers (controller, lock_mods);
2234 dec_synth_keycode_press (controller, key_synth_code);
2235 dec_synth_keycode_release (controller, key_synth_code);
2237 if (synth_mods != modifiers)
2238 dec_unlock_modifiers (controller, lock_mods);
2244 dec_synth_keystring (SpiDEController *controller, const char *keystring)
2246 /* probably we need to create and inject an XIM handler eventually. */
2247 /* for now, try to match the string to existing
2248 * keycode+modifier states.
2252 gunichar unichar = 0;
2254 gboolean retval = TRUE;
2257 maxlen = strlen (keystring);
2258 keysyms = g_new0 (KeySym, maxlen);
2259 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
2264 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
2266 while (keystring && (unichar = g_utf8_get_char (keystring))) {
2271 mbytes = g_unichar_to_utf8 (unichar, bytes);
2272 bytes[mbytes] = '\0';
2274 fprintf (stderr, "[unichar %s]", bytes);
2276 keysym = dec_keysym_for_unichar (controller, unichar);
2277 if (keysym == NoSymbol) {
2279 fprintf (stderr, "no keysym for %s", bytes);
2284 keysyms[i++] = keysym;
2285 keystring = g_utf8_next_char (keystring);
2288 XSynchronize (spi_get_display (), TRUE);
2289 for (i = 0; keysyms[i]; ++i) {
2290 if (!dec_synth_keysym (controller, keysyms[i])) {
2292 fprintf (stderr, "could not synthesize %c\n",
2299 XSynchronize (spi_get_display (), FALSE);
2308 * DBus Accessibility::DEController::registerKeystrokeListener
2309 * method implementation
2311 static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2313 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2315 dbus_int32_t keycode;
2317 dbus_uint32_t synth_type;
2320 DEControllerPrivateData *priv;
2323 dbus_error_init(&error);
2324 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
2326 return spi_dbus_general_error (message);
2330 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2331 (long) keycode, (int) synth_type);
2333 /* TODO: hide/wrap/remove X dependency */
2336 * TODO: when initializing, query for XTest extension before using,
2337 * and fall back to XSendEvent() if XTest is not available.
2340 gdk_error_trap_push ();
2342 priv = (DEControllerPrivateData *)
2343 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
2345 if (!priv->have_xkb && xmkeymap==NULL) {
2346 xmkeymap = XGetModifierMapping(spi_get_display ());
2351 case Accessibility_KEY_PRESS:
2352 dec_synth_keycode_press (controller, keycode);
2354 case Accessibility_KEY_PRESSRELEASE:
2355 dec_synth_keycode_press (controller, keycode);
2356 case Accessibility_KEY_RELEASE:
2357 dec_synth_keycode_release (controller, keycode);
2359 case Accessibility_KEY_SYM:
2360 #ifdef SPI_XKB_DEBUG
2361 fprintf (stderr, "KeySym synthesis\n");
2364 * note: we are using long for 'keycode'
2365 * in our arg list; it can contain either
2366 * a keycode or a keysym.
2368 dec_synth_keysym (controller, (KeySym) keycode);
2370 case Accessibility_KEY_STRING:
2371 if (!dec_synth_keystring (controller, keystring))
2372 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2376 if ((err = gdk_error_trap_pop ()))
2378 DBG (-1, g_warning ("Error [%d] emitting keystroke", err));
2380 if (synth_type == Accessibility_KEY_SYM) {
2384 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2386 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2388 spi_dec_clear_unlatch_pending (controller);
2390 reply = dbus_message_new_method_return (message);
2394 /* Accessibility::DEController::generateMouseEvent */
2395 static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
2403 gboolean err = FALSE;
2404 Display *display = spi_get_display ();
2406 if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
2408 return spi_dbus_general_error (message);
2412 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2413 eventName, (long int) x, (long int) y);
2415 switch (eventName[0])
2418 switch (eventName[1])
2420 /* TODO: check number of buttons before parsing */
2441 if (x != -1 && y != -1)
2443 XTestFakeMotionEvent (display, DefaultScreen (display),
2446 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2447 if (eventName[2] == 'c')
2448 XTestFakeButtonEvent (display, button, FALSE, 1);
2449 else if (eventName[2] == 'd')
2451 XTestFakeButtonEvent (display, button, FALSE, 1);
2452 XTestFakeButtonEvent (display, button, TRUE, 2);
2453 XTestFakeButtonEvent (display, button, FALSE, 3);
2457 case 'r': /* relative motion */
2458 XTestFakeRelativeMotionEvent (display, x, y, 0);
2460 case 'a': /* absolute motion */
2461 XTestFakeMotionEvent (display, DefaultScreen (display),
2465 reply = dbus_message_new_method_return (message);
2469 /* Accessibility::DEController::notifyListenersSync */
2470 static DBusMessage *
2471 impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
2473 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2474 Accessibility_DeviceEvent event;
2478 if (!spi_dbus_demarshall_deviceEvent(message, &event))
2480 return spi_dbus_general_error (message);
2483 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2484 controller, (int) event.id);
2486 ret = spi_controller_notify_keylisteners (controller,
2487 (Accessibility_DeviceEvent *)
2490 reply = dbus_message_new_method_return (message);
2493 dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
2498 static DBusMessage *
2499 impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
2501 SpiDEController *controller = SPI_REGISTRY(user_data)->de_controller;
2502 Accessibility_DeviceEvent event;
2505 if (!spi_dbus_demarshall_deviceEvent(message, &event))
2507 return spi_dbus_general_error (message);
2510 g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
2511 controller, (int) event.id);
2513 spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
2515 reply = dbus_message_new_method_return (message);
2520 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2522 GObjectClass * object_class = (GObjectClass *) klass;
2524 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2526 object_class->finalize = spi_device_event_controller_object_finalize;
2528 if (!spi_dec_private_quark)
2529 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2533 static Bool isEvent(Display *dpy, XEvent *event, char *arg)
2539 handle_io (GIOChannel *source,
2540 GIOCondition condition,
2543 SpiDEController *controller = (SpiDEController *) data;
2544 gboolean is_consumed = FALSE;
2547 while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
2549 if (ev.type == KeyPress || ev.type == KeyRelease)
2550 is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
2553 XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
2558 #endif /* HAVE_XEVIE */
2561 spi_device_event_controller_init (SpiDEController *device_event_controller)
2566 #endif /* HAVE_XEVIE */
2568 DEControllerPrivateData *private;
2569 device_event_controller->key_listeners = NULL;
2570 device_event_controller->mouse_listeners = NULL;
2571 device_event_controller->keygrabs_list = NULL;
2572 device_event_controller->xevie_display = NULL;
2575 device_event_controller->xevie_display = XOpenDisplay(NULL);
2577 if (XevieStart(device_event_controller->xevie_display) == TRUE)
2579 #ifdef SPI_KEYEVENT_DEBUG
2580 fprintf (stderr, "XevieStart() success \n");
2582 XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
2584 fd = ConnectionNumber(device_event_controller->xevie_display);
2585 ioc = g_io_channel_unix_new (fd);
2586 g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
2587 g_io_channel_unref (ioc);
2591 device_event_controller->xevie_display = NULL;
2592 #ifdef SPI_KEYEVENT_DEBUG
2593 fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
2596 #endif /* HAVE_XEVIE */
2598 private = g_new0 (DEControllerPrivateData, 1);
2599 gettimeofday (&private->last_press_time, NULL);
2600 gettimeofday (&private->last_release_time, NULL);
2601 g_object_set_qdata (G_OBJECT (device_event_controller),
2602 spi_dec_private_quark,
2604 spi_controller_register_with_devices (device_event_controller);
2608 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2609 const XEvent *event)
2611 Accessibility_DeviceEvent key_event;
2614 g_assert (event->type == KeyPress || event->type == KeyRelease);
2616 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2618 if (controller->xevie_display == NULL)
2619 spi_controller_update_key_grabs (controller, &key_event);
2621 /* relay to listeners, and decide whether to consume it or not */
2622 ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
2623 g_free(key_event.event_string);
2628 spi_device_event_controller_new (SpiRegistry *registry)
2630 SpiDEController *retval = g_object_new (
2631 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2633 retval->registry = g_object_ref (registry);
2635 spi_dec_init_mouse_listener (registry);
2636 /* TODO: kill mouse listener on finalize */
2641 is_key_released (KeyCode code)
2646 XQueryKeymap (spi_get_display (), keys);
2647 down = BIT (keys, code);
2652 check_release (gpointer data)
2655 Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
2656 KeyCode code = event->hw_code;
2658 released = is_key_released (code);
2662 check_release_handler = 0;
2663 event->type = Accessibility_KEY_RELEASED_EVENT;
2664 spi_controller_notify_keylisteners (saved_controller, event, TRUE);
2666 return (released == 0);
2669 static void wait_for_release_event (XEvent *event,
2670 SpiDEController *controller)
2672 pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2673 saved_controller = controller;
2674 check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
2677 static DRouteMethod methods[] =
2679 { impl_register_keystroke_listener, "registerKeystrokeListener" },
2680 { impl_register_device_listener, "registerDeviceListener" },
2681 { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
2682 { impl_deregister_device_listener, "deregisterDeviceListener" },
2683 { impl_generate_keyboard_event, "generateKeyboardEvent" },
2684 { impl_generate_mouse_event, "generateMouseEvent" },
2685 { impl_notify_listeners_sync, "notifyListenersSync" },
2686 { impl_notify_listeners_async, "notifyListenersAsync" },
2691 spi_registry_initialize_dec_interface (DRouteData * data)
2693 droute_add_interface (data, "org.freedesktop.atspi.DeviceEventController", methods,