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
36 #include <bonobo/bonobo-exception.h>
39 #include <X11/extensions/XTest.h>
40 #include <X11/XKBlib.h>
42 #include <X11/keysymdef.h>
44 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
45 #include <gdk/gdkkeysyms.h>
46 #include <gdk/gdkwindow.h>
48 #include "../libspi/spi-private.h"
49 #include "deviceeventcontroller.h"
51 /* Our parent Gtk object type */
52 #define PARENT_TYPE BONOBO_TYPE_OBJECT
54 /* A pointer to our parent object class */
55 static GObjectClass *spi_device_event_controller_parent_class;
56 static int spi_error_code = 0;
57 static GdkPoint last_mouse_pos_static = {0, 0};
58 static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
59 static unsigned int mouse_mask_state = 0;
60 static unsigned int mouse_button_mask =
61 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
62 static unsigned int key_modifier_mask =
63 Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
64 static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
66 static GQuark spi_dec_private_quark = 0;
68 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
72 SPI_DEVICE_TYPE_MOUSE,
73 SPI_DEVICE_TYPE_LAST_DEFINED
74 } SpiDeviceTypeCategory;
78 guint pending_add : 1;
79 guint pending_remove : 1;
81 Accessibility_ControllerEventMask mod_mask;
82 CORBA_unsigned_long key_val; /* KeyCode */
83 } DEControllerGrabMask;
87 SpiDeviceTypeCategory type;
88 Accessibility_EventTypeSeq *typeseq;
89 } DEControllerListener;
92 DEControllerListener listener;
94 Accessibility_KeySet *keys;
95 Accessibility_ControllerEventMask mask;
96 Accessibility_EventListenerMode *mode;
97 } DEControllerKeyListener;
100 unsigned int last_press_keycode;
101 unsigned int last_release_keycode;
102 struct timeval last_press_time;
103 struct timeval last_release_time;
105 int xkb_major_extension_opcode;
106 int xkb_base_event_code;
107 int xkb_base_error_code;
108 unsigned int xkb_latch_mask;
109 unsigned int pending_xkb_mod_relatch_mask;
111 } DEControllerPrivateData;
113 static void spi_controller_register_with_devices (SpiDEController *controller);
114 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
115 Accessibility_DeviceEvent *recv);
116 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
117 DEControllerListener *l,
118 CORBA_Environment *ev);
119 static void spi_device_event_controller_forward_key_event (SpiDEController *controller,
120 const XEvent *event);
121 static void spi_deregister_controller_device_listener (SpiDEController *controller,
122 DEControllerListener *listener,
123 CORBA_Environment *ev);
124 static void spi_deregister_controller_key_listener (SpiDEController *controller,
125 DEControllerKeyListener *key_listener,
126 CORBA_Environment *ev);
127 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
128 const Accessibility_DeviceEvent *event,
129 CORBA_Environment *ev);
131 static gboolean spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
132 const Accessibility_DeviceEvent *event);
133 static gboolean spi_clear_error_state (void);
134 static gboolean spi_dec_poll_mouse_moved (gpointer data);
135 static gboolean spi_dec_poll_mouse_moving (gpointer data);
136 static gboolean spi_dec_poll_mouse_idle (gpointer data);
138 #define spi_get_display() GDK_DISPLAY()
140 /* Private methods */
143 keysym_mod_mask (KeySym keysym, KeyCode keycode)
145 /* we really should use XKB and look directly at the keymap */
146 /* this is very inelegant */
147 Display *display = spi_get_display ();
148 unsigned int mods_rtn = 0;
149 unsigned int retval = 0;
152 if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
153 (sym_rtn == keysym)) {
156 else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
157 (sym_rtn == keysym)) {
160 else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
161 (sym_rtn == keysym)) {
164 else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
165 (sym_rtn == keysym)) {
168 else if (XkbLookupKeySym (display, keycode,
169 ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
170 (sym_rtn == keysym)) {
171 retval = (Mod2Mask | ShiftMask);
173 else if (XkbLookupKeySym (display, keycode,
174 ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
175 (sym_rtn == keysym)) {
176 retval = (Mod3Mask | ShiftMask);
178 else if (XkbLookupKeySym (display, keycode,
179 ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
180 (sym_rtn == keysym)) {
181 retval = (Mod4Mask | ShiftMask);
189 keycode_for_keysym (long keysym, unsigned int *modmask)
192 keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
194 *modmask = keysym_mod_mask (keysym, keycode);
198 static DEControllerGrabMask *
199 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
201 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
203 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
205 clone->ref_count = 1;
206 clone->pending_add = TRUE;
207 clone->pending_remove = FALSE;
213 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
219 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
221 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
222 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
230 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
235 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
237 DEControllerPrivateData *priv =
238 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
240 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
241 priv->xkb_latch_mask);
243 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
247 spi_dec_clear_unlatch_pending (SpiDEController *controller)
249 DEControllerPrivateData *priv =
250 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
251 priv->xkb_latch_mask = 0;
255 spi_dec_button_update_and_emit (SpiDEController *controller,
258 CORBA_Environment ev;
259 Accessibility_Event e;
260 Accessibility_DeviceEvent mouse_e;
261 gchar event_name[24];
262 gboolean is_consumed = FALSE;
264 if ((mask_return & mouse_button_mask) !=
265 (mouse_mask_state & mouse_button_mask))
267 int button_number = 0;
268 gboolean is_down = False;
270 if (!(mask_return & Button1Mask) &&
271 (mouse_mask_state & Button1Mask))
273 mouse_mask_state &= ~Button1Mask;
276 else if ((mask_return & Button1Mask) &&
277 !(mouse_mask_state & Button1Mask))
279 mouse_mask_state |= Button1Mask;
283 else if (!(mask_return & Button2Mask) &&
284 (mouse_mask_state & Button2Mask))
286 mouse_mask_state &= ~Button2Mask;
289 else if ((mask_return & Button2Mask) &&
290 !(mouse_mask_state & Button2Mask))
292 mouse_mask_state |= Button2Mask;
296 else if (!(mask_return & Button3Mask) &&
297 (mouse_mask_state & Button3Mask))
299 mouse_mask_state &= ~Button3Mask;
302 else if ((mask_return & Button3Mask) &&
303 !(mouse_mask_state & Button3Mask))
305 mouse_mask_state |= Button3Mask;
309 else if (!(mask_return & Button4Mask) &&
310 (mouse_mask_state & Button4Mask))
312 mouse_mask_state &= ~Button4Mask;
315 else if ((mask_return & Button4Mask) &&
316 !(mouse_mask_state & Button4Mask))
318 mouse_mask_state |= Button4Mask;
322 else if (!(mask_return & Button5Mask) &&
323 (mouse_mask_state & Button5Mask))
325 mouse_mask_state &= ~Button5Mask;
328 else if ((mask_return & Button5Mask) &&
329 !(mouse_mask_state & Button5Mask))
331 mouse_mask_state |= Button5Mask;
337 fprintf (stderr, "Button %d %s\n",
338 button_number, (is_down) ? "Pressed" : "Released");
340 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
341 (is_down) ? 'p' : 'r');
342 /* TODO: distinguish between physical and
345 mouse_e.type = (is_down) ?
346 Accessibility_BUTTON_PRESSED_EVENT :
347 Accessibility_BUTTON_RELEASED_EVENT;
348 mouse_e.id = button_number;
349 mouse_e.hw_code = button_number;
350 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
351 mouse_e.timestamp = 0;
352 mouse_e.event_string = "";
353 mouse_e.is_text = CORBA_FALSE;
355 spi_controller_notify_mouselisteners (controller,
359 e.source = BONOBO_OBJREF (controller->registry->desktop);
360 e.detail1 = last_mouse_pos->x;
361 e.detail2 = last_mouse_pos->y;
362 spi_init_any_nil (&e.any_data);
363 CORBA_exception_init (&ev);
366 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
371 spi_dec_set_unlatch_pending (controller, mask_return);
383 spi_dec_mouse_check (SpiDEController *controller,
384 int *x, int *y, gboolean *moved)
386 Accessibility_Event e;
387 CORBA_Environment ev;
388 int win_x_return,win_y_return;
389 unsigned int mask_return;
390 Window root_return, child_return;
391 Display *display = spi_get_display ();
394 XQueryPointer(display, DefaultRootWindow (display),
395 &root_return, &child_return,
397 &win_x_return, &win_y_return, &mask_return);
399 * Since many clients grab the pointer, and X goes an automatic
400 * pointer grab on mouse-down, we often must detect mouse button events
401 * by polling rather than via a button grab.
402 * The while loop (rather than if) is used since it's possible that
403 * multiple buttons have changed state since we last checked.
405 if (mask_return != mouse_mask_state)
407 while (spi_dec_button_update_and_emit (controller, mask_return));
410 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
412 e.type = "mouse:abs";
413 e.source = BONOBO_OBJREF (controller->registry->desktop);
416 spi_init_any_nil (&e.any_data);
417 CORBA_exception_init (&ev);
418 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
421 e.type = "mouse:rel";
422 e.source = BONOBO_OBJREF (controller->registry->desktop);
423 e.detail1 = *x - last_mouse_pos->x;
424 e.detail2 = *y - last_mouse_pos->y;
425 spi_init_any_nil (&e.any_data);
426 CORBA_exception_init (&ev);
427 last_mouse_pos->x = *x;
428 last_mouse_pos->y = *y;
429 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
443 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
446 Accessibility_Event e;
447 CORBA_Environment ev;
450 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
451 prev_mask, current_mask);
454 /* set bits for the virtual modifiers like NUMLOCK */
455 if (prev_mask & _numlock_physical_mask)
456 prev_mask |= SPI_KEYMASK_NUMLOCK;
457 if (current_mask & _numlock_physical_mask)
458 current_mask |= SPI_KEYMASK_NUMLOCK;
460 e.type = "keyboard:modifiers";
461 e.source = BONOBO_OBJREF (controller->registry->desktop);
462 e.detail1 = prev_mask & key_modifier_mask;
463 e.detail2 = current_mask & key_modifier_mask;
464 spi_init_any_nil (&e.any_data);
465 CORBA_exception_init (&ev);
466 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
472 spi_dec_poll_mouse_moved (gpointer data)
474 SpiRegistry *registry = SPI_REGISTRY (data);
475 SpiDEController *controller = registry->de_controller;
480 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
482 if ((mask_return & key_modifier_mask) !=
483 (mouse_mask_state & key_modifier_mask))
485 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
486 mouse_mask_state = mask_return;
493 spi_dec_poll_mouse_idle (gpointer data)
495 if (! spi_dec_poll_mouse_moved (data))
499 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
505 spi_dec_poll_mouse_moving (gpointer data)
507 if (spi_dec_poll_mouse_moved (data))
511 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
516 #ifdef WE_NEED_UGRAB_MOUSE
518 spi_dec_ungrab_mouse (gpointer data)
520 Display *display = spi_get_display ();
523 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
524 XDefaultRootWindow (spi_get_display ()));
531 spi_dec_init_mouse_listener (SpiRegistry *registry)
533 Display *display = spi_get_display ();
534 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
538 if (XGrabButton (display, AnyButton, AnyModifier,
539 gdk_x11_get_default_root_xwindow (),
540 True, ButtonPressMask | ButtonReleaseMask,
541 GrabModeSync, GrabModeAsync, None, None) != Success)
542 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
543 XSync (display, False);
545 fprintf (stderr, "mouse buttons grabbed\n");
551 * Eventually we can use this to make the marshalling of mask types
552 * more sane, but for now we just use this to detect
553 * the use of 'virtual' masks such as Mumlock and convert them to
554 * system-specific mask values (i.e. ModMask).
557 static Accessibility_ControllerEventMask
558 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
560 DEControllerPrivateData *priv;
562 if (mask == SPI_KEYMASK_NUMLOCK) {
563 mask = _numlock_physical_mask;
568 static DEControllerKeyListener *
569 spi_dec_key_listener_new (CORBA_Object l,
570 const Accessibility_KeySet *keys,
571 const Accessibility_ControllerEventMask mask,
572 const Accessibility_EventTypeSeq *typeseq,
573 const Accessibility_EventListenerMode *mode,
574 CORBA_Environment *ev)
576 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
577 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
578 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
579 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
580 key_listener->mask = spi_dec_translate_mask (mask);
581 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
583 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
585 key_listener->mode = NULL;
588 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
589 (unsigned int) key_listener->mask,
590 (int) (mode ? mode->global : 0),
591 (void *) key_listener->keys,
592 (int) (key_listener->keys ? key_listener->keys->_length : 0));
598 static DEControllerListener *
599 spi_dec_listener_new (CORBA_Object l,
600 const Accessibility_EventTypeSeq *typeseq,
601 CORBA_Environment *ev)
603 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
604 listener->object = bonobo_object_dup_ref (l, ev);
605 listener->type = SPI_DEVICE_TYPE_MOUSE;
606 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
610 static DEControllerListener *
611 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
613 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
615 CORBA_Object_duplicate (listener->object, ev);
616 clone->type = listener->type;
617 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
621 static DEControllerKeyListener *
622 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
624 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
625 clone->listener.object =
626 CORBA_Object_duplicate (key_listener->listener.object, ev);
627 clone->listener.type = SPI_DEVICE_TYPE_KBD;
628 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
629 clone->mask = key_listener->mask;
630 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
631 if (key_listener->mode)
632 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
639 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
641 CORBA_free (key_listener->listener.typeseq);
642 CORBA_free (key_listener->keys);
643 g_free (key_listener);
647 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
649 CORBA_Object_release (clone->listener.object, ev);
650 spi_key_listener_data_free (clone, ev);
654 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
656 CORBA_Object_release (clone->object, ev);
657 CORBA_free (clone->typeseq);
662 spi_dec_listener_free (DEControllerListener *listener,
663 CORBA_Environment *ev)
665 bonobo_object_release_unref (listener->object, ev);
666 if (listener->type == SPI_DEVICE_TYPE_KBD)
667 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
671 _register_keygrab (SpiDEController *controller,
672 DEControllerGrabMask *grab_mask)
676 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
677 spi_grab_mask_compare_values);
680 DEControllerGrabMask *cur_mask = l->data;
682 cur_mask->ref_count++;
683 if (cur_mask->pending_remove)
685 cur_mask->pending_remove = FALSE;
690 controller->keygrabs_list =
691 g_list_prepend (controller->keygrabs_list,
692 spi_grab_mask_clone (grab_mask));
697 _deregister_keygrab (SpiDEController *controller,
698 DEControllerGrabMask *grab_mask)
702 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
703 spi_grab_mask_compare_values);
707 DEControllerGrabMask *cur_mask = l->data;
709 cur_mask->ref_count--;
710 if (cur_mask->ref_count <= 0)
712 cur_mask->pending_remove = TRUE;
717 DBG (1, g_warning ("De-registering non-existant grab"));
722 handle_keygrab (SpiDEController *controller,
723 DEControllerKeyListener *key_listener,
724 void (*process_cb) (SpiDEController *controller,
725 DEControllerGrabMask *grab_mask))
727 DEControllerGrabMask grab_mask = { 0 };
729 grab_mask.mod_mask = key_listener->mask;
730 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
732 grab_mask.key_val = AnyKey;
734 fprintf (stderr, "AnyKey grab!");
736 process_cb (controller, &grab_mask);
742 for (i = 0; i < key_listener->keys->_length; ++i)
744 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
745 long int key_val = keydef.keysym;
746 /* X Grabs require keycodes, not keysyms */
747 if (keydef.keystring && keydef.keystring[0])
749 key_val = XStringToKeysym(keydef.keystring);
753 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
757 key_val = keydef.keycode;
759 grab_mask.key_val = key_val;
760 process_cb (controller, &grab_mask);
766 spi_controller_register_global_keygrabs (SpiDEController *controller,
767 DEControllerKeyListener *key_listener)
769 handle_keygrab (controller, key_listener, _register_keygrab);
770 return spi_controller_update_key_grabs (controller, NULL);
774 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
775 DEControllerKeyListener *key_listener)
777 handle_keygrab (controller, key_listener, _deregister_keygrab);
778 spi_controller_update_key_grabs (controller, NULL);
782 spi_controller_register_device_listener (SpiDEController *controller,
783 DEControllerListener *listener,
784 CORBA_Environment *ev)
786 DEControllerKeyListener *key_listener;
788 switch (listener->type) {
789 case SPI_DEVICE_TYPE_KBD:
790 key_listener = (DEControllerKeyListener *) listener;
792 controller->key_listeners = g_list_prepend (controller->key_listeners,
794 if (key_listener->mode->global)
796 return spi_controller_register_global_keygrabs (controller, key_listener);
801 case SPI_DEVICE_TYPE_MOUSE:
802 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
805 DBG (1, g_warning ("listener registration for unknown device type.\n"));
812 spi_controller_notify_mouselisteners (SpiDEController *controller,
813 const Accessibility_DeviceEvent *event,
814 CORBA_Environment *ev)
817 GSList *notify = NULL, *l2;
818 GList **listeners = &controller->mouse_listeners;
819 gboolean is_consumed;
826 for (l = *listeners; l; l = l->next)
828 DEControllerListener *listener = l->data;
830 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
832 Accessibility_DeviceEventListener ls = listener->object;
834 if (ls != CORBA_OBJECT_NIL)
836 /* we clone (don't dup) the listener, to avoid refcount inc. */
837 notify = g_slist_prepend (notify,
838 spi_listener_clone (listener, ev));
843 #ifdef SPI_KEYEVENT_DEBUG
846 g_print ("no match for event\n");
851 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
853 DEControllerListener *listener = l2->data;
854 Accessibility_DeviceEventListener ls = listener->object;
856 CORBA_exception_init (ev);
857 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
861 DBG (2, g_warning ("error notifying listener, removing it\n"));
862 spi_deregister_controller_device_listener (controller, listener,
864 CORBA_exception_free (ev);
867 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
870 for (; l2; l2 = l2->next)
872 DEControllerListener *listener = l2->data;
873 spi_listener_clone_free (listener, ev);
874 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
877 g_slist_free (notify);
880 if (is_consumed) g_message ("consumed\n");
886 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
889 Accessibility_Event e;
890 Accessibility_DeviceEvent mouse_e;
891 CORBA_Environment ev;
892 gchar event_name[24];
893 gboolean is_consumed = FALSE;
894 gboolean xkb_mod_unlatch_occurred;
895 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
897 int button = xbutton_event->button;
899 unsigned int mouse_button_state = xbutton_event->state;
904 mouse_button_state |= Button1Mask;
907 mouse_button_state |= Button2Mask;
910 mouse_button_state |= Button3Mask;
913 mouse_button_state |= Button4Mask;
916 mouse_button_state |= Button5Mask;
920 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
921 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
924 fprintf (stderr, "mouse button %d %s (%x)\n",
925 xbutton_event->button,
926 (xevent->type == ButtonPress) ? "Press" : "Release",
929 snprintf (event_name, 22, "mouse:button:%d%c", button,
930 (xevent->type == ButtonPress) ? 'p' : 'r');
932 /* TODO: distinguish between physical and logical buttons */
933 mouse_e.type = (xevent->type == ButtonPress) ?
934 Accessibility_BUTTON_PRESSED_EVENT :
935 Accessibility_BUTTON_RELEASED_EVENT;
937 mouse_e.hw_code = button;
938 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
939 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
940 mouse_e.event_string = "";
941 mouse_e.is_text = CORBA_FALSE;
942 if ((mouse_button_state & mouse_button_mask) !=
943 (mouse_mask_state & mouse_button_mask))
945 if ((mouse_mask_state & key_modifier_mask) !=
946 (mouse_button_state & key_modifier_mask))
947 spi_dec_emit_modifier_event (controller,
948 mouse_mask_state, mouse_button_state);
949 mouse_mask_state = mouse_button_state;
951 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
952 e.type = CORBA_string_dup (event_name);
953 e.source = BONOBO_OBJREF (controller->registry->desktop);
954 e.detail1 = last_mouse_pos->x;
955 e.detail2 = last_mouse_pos->y;
956 spi_init_any_nil (&e.any_data);
957 CORBA_exception_init (&ev);
959 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
964 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
965 xevent->type == ButtonRelease);
967 /* if client wants to consume this event, and XKB latch state was
968 * unset by this button event, we reset it
970 if (is_consumed && xkb_mod_unlatch_occurred)
971 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
973 XAllowEvents (spi_get_display (),
974 (is_consumed) ? SyncPointer : ReplayPointer,
978 static GdkFilterReturn
979 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
981 XEvent *xevent = gdk_xevent;
982 SpiDEController *controller;
983 DEControllerPrivateData *priv;
984 Display *display = spi_get_display ();
985 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
986 priv = (DEControllerPrivateData *)
987 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
989 if (xevent->type == KeyPress || xevent->type == KeyRelease)
991 spi_device_event_controller_forward_key_event (controller, xevent);
992 return GDK_FILTER_CONTINUE;
994 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
996 spi_device_event_controller_forward_mouse_event (controller, xevent);
998 if (xevent->type == priv->xkb_base_event_code)
1000 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
1001 /* ugly but probably necessary...*/
1002 XSynchronize (spi_get_display (), TRUE);
1004 if (xkb_ev->xkb_type == XkbStateNotify)
1006 XkbStateNotifyEvent *xkb_snev =
1007 (XkbStateNotifyEvent *) xkb_ev;
1008 /* check the mouse, to catch mouse events grabbed by
1009 * another client; in case we should revert this XKB delatch
1011 if (!priv->pending_xkb_mod_relatch_mask)
1015 spi_dec_mouse_check (controller, &x, &y, &moved);
1017 /* we check again, since the previous call may have
1018 changed this flag */
1019 if (priv->pending_xkb_mod_relatch_mask)
1021 unsigned int feedback_mask;
1022 #ifdef SPI_XKB_DEBUG
1023 fprintf (stderr, "relatching %x\n",
1024 priv->pending_xkb_mod_relatch_mask);
1026 /* temporarily turn off the latch bell, if it's on */
1027 XkbGetControls (display,
1028 XkbAccessXFeedbackMask,
1030 feedback_mask = priv->xkb_desc->ctrls->ax_options;
1031 if (feedback_mask & XkbAX_StickyKeysFBMask)
1033 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1035 priv->xkb_desc->ctrls->ax_options
1036 &= ~(XkbAX_StickyKeysFBMask);
1037 XkbChangeControls (display, priv->xkb_desc, &changes);
1039 /* TODO: account for lock as well as latch */
1040 XkbLatchModifiers (display,
1042 priv->pending_xkb_mod_relatch_mask,
1043 priv->pending_xkb_mod_relatch_mask);
1044 if (feedback_mask & XkbAX_StickyKeysFBMask)
1046 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
1048 priv->xkb_desc->ctrls->ax_options = feedback_mask;
1049 XkbChangeControls (display, priv->xkb_desc, &changes);
1051 #ifdef SPI_XKB_DEBUG
1052 fprintf (stderr, "relatched %x\n",
1053 priv->pending_xkb_mod_relatch_mask);
1055 priv->pending_xkb_mod_relatch_mask = 0;
1059 priv->xkb_latch_mask = xkb_snev->latched_mods;
1063 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1064 XSynchronize (spi_get_display (), FALSE);
1067 return GDK_FILTER_CONTINUE;
1071 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1073 if (error->error_code == BadAccess)
1075 g_message ("Could not complete key grab: grab already in use.\n");
1076 spi_error_code = BadAccess;
1081 return (*x_default_error_handler) (display, error);
1086 spi_controller_register_with_devices (SpiDEController *controller)
1088 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1089 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1090 /* FIXME: should check for extension first! */
1091 XTestGrabControl (spi_get_display (), True);
1093 /* calls to device-specific implementations and routines go here */
1094 /* register with: keyboard hardware code handler */
1095 /* register with: (translated) keystroke handler */
1097 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1098 &priv->xkb_major_extension_opcode,
1099 &priv->xkb_base_event_code,
1100 &priv->xkb_base_error_code, NULL, NULL);
1103 priv->xkb_desc = XkbGetMap (spi_get_display (), 0, XkbUseCoreKbd);
1104 XkbSelectEvents (spi_get_display (),
1106 XkbStateNotifyMask, XkbStateNotifyMask);
1107 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1111 gdk_window_add_filter (NULL, global_filter_fn, controller);
1113 gdk_window_set_events (gdk_get_default_root_window (),
1114 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1116 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1120 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1121 const Accessibility_DeviceEvent *key_event)
1128 g_print ("null key set!");
1132 len = key_set->_length;
1134 if (len == 0) /* special case, means "all keys/any key" */
1136 g_print ("anykey\n");
1140 for (i = 0; i < len; ++i)
1142 #ifdef SPI_KEYEVENT_DEBUG
1143 g_print ("key_set[%d] = %d; key_event %d, code %d, string %s\n",
1144 i, (int) key_set->_buffer[i].keycode,
1145 (int) key_event->id, (int) key_event->hw_code,
1146 key_event->event_string);
1148 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1152 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1156 if (key_event->event_string && key_event->event_string[0] &&
1157 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1167 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1168 const Accessibility_DeviceEvent *event)
1176 g_print ("null type seq!");
1180 len = type_seq->_length;
1182 if (len == 0) /* special case, means "all events/any event" */
1187 for (i = 0; i < len; ++i)
1190 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1191 (int) type_seq->_buffer[i], (int) event->type);
1193 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1203 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1204 DEControllerKeyListener *listener,
1205 CORBA_boolean is_system_global)
1207 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1208 spi_key_set_contains_key (listener->keys, key_event) &&
1209 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1210 (is_system_global == listener->mode->global))
1221 spi_controller_notify_keylisteners (SpiDEController *controller,
1222 const Accessibility_DeviceEvent *key_event,
1223 CORBA_boolean is_system_global,
1224 CORBA_Environment *ev)
1227 GSList *notify = NULL, *l2;
1228 GList **key_listeners = &controller->key_listeners;
1229 gboolean is_consumed;
1236 for (l = *key_listeners; l; l = l->next)
1238 DEControllerKeyListener *key_listener = l->data;
1240 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1242 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1244 if (ls != CORBA_OBJECT_NIL)
1246 /* we clone (don't dup) the listener, to avoid refcount inc. */
1247 notify = g_slist_prepend (notify,
1248 spi_key_listener_clone (key_listener, ev));
1253 #ifdef SPI_KEYEVENT_DEBUG
1256 g_print ("no match for event\n");
1260 is_consumed = FALSE;
1261 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1263 DEControllerKeyListener *key_listener = l2->data;
1264 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1266 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
1270 is_consumed = FALSE;
1271 spi_deregister_controller_key_listener (controller, key_listener,
1273 CORBA_exception_free (ev);
1276 spi_key_listener_clone_free (key_listener, ev);
1279 for (; l2; l2 = l2->next)
1281 DEControllerKeyListener *key_listener = l2->data;
1282 spi_key_listener_clone_free (key_listener, ev);
1283 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1286 g_slist_free (notify);
1289 if (is_consumed) g_message ("consumed\n");
1295 spi_clear_error_state ()
1297 gboolean retval = spi_error_code != 0;
1302 static Accessibility_DeviceEvent
1303 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1305 Accessibility_DeviceEvent key_event;
1307 const int cbuf_bytes = 20;
1308 char cbuf [cbuf_bytes+1];
1311 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1312 key_event.id = (CORBA_long)(keysym);
1313 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1314 if (((XEvent *) x_key_event)->type == KeyPress)
1316 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1320 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1322 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1323 key_event.is_text = CORBA_FALSE;
1327 key_event.event_string = CORBA_string_dup ("space");
1330 key_event.event_string = CORBA_string_dup ("Tab");
1333 key_event.event_string = CORBA_string_dup ("Backspace");
1336 key_event.event_string = CORBA_string_dup ("Return");
1339 key_event.event_string = CORBA_string_dup ("Home");
1342 key_event.event_string = CORBA_string_dup ("Page_Down");
1345 key_event.event_string = CORBA_string_dup ("Page_Up");
1348 key_event.event_string = CORBA_string_dup ("F1");
1351 key_event.event_string = CORBA_string_dup ("F2");
1354 key_event.event_string = CORBA_string_dup ("F3");
1357 key_event.event_string = CORBA_string_dup ("F4");
1360 key_event.event_string = CORBA_string_dup ("F5");
1363 key_event.event_string = CORBA_string_dup ("F6");
1366 key_event.event_string = CORBA_string_dup ("F7");
1369 key_event.event_string = CORBA_string_dup ("F8");
1372 key_event.event_string = CORBA_string_dup ("F9");
1375 key_event.event_string = CORBA_string_dup ("F10");
1378 key_event.event_string = CORBA_string_dup ("F11");
1381 key_event.event_string = CORBA_string_dup ("F12");
1384 key_event.event_string = CORBA_string_dup ("End");
1387 key_event.event_string = CORBA_string_dup ("Escape");
1390 key_event.event_string = CORBA_string_dup ("Up");
1393 key_event.event_string = CORBA_string_dup ("Down");
1396 key_event.event_string = CORBA_string_dup ("Left");
1399 key_event.event_string = CORBA_string_dup ("Right");
1405 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1406 key_event.event_string = CORBA_string_dup (cbuf);
1407 c = g_utf8_get_char_validated (cbuf, nbytes);
1408 if ((c > 0) && g_unichar_isprint (c))
1410 key_event.is_text = CORBA_TRUE;
1411 /* incorrect for some composed chars? */
1416 key_event.event_string = CORBA_string_dup ("");
1420 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1421 #ifdef SPI_KEYEVENT_DEBUG
1423 "Key %lu pressed (%c), modifiers %d; string=%s [%x] %s\n",
1424 (unsigned long) keysym,
1425 keysym ? (int) keysym : '*',
1426 (int) x_key_event->state,
1427 key_event.event_string,
1428 key_event.event_string[0],
1429 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1432 fprintf (stderr, "%s%c",
1433 (x_key_event->state & Mod1Mask)?"Alt-":"",
1434 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1435 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1436 #endif /* SPI_DEBUG */
1441 spi_controller_update_key_grabs (SpiDEController *controller,
1442 Accessibility_DeviceEvent *recv)
1445 gboolean update_failed = FALSE;
1447 g_return_val_if_fail (controller != NULL, FALSE);
1450 * masks known to work with default RH 7.1+:
1451 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1452 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1453 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1454 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1456 * ControlMask grabs are broken, must be in use already
1458 for (l = controller->keygrabs_list; l; l = next)
1461 gboolean re_issue_grab;
1462 DEControllerGrabMask *grab_mask = l->data;
1466 re_issue_grab = recv &&
1467 (recv->modifiers & grab_mask->mod_mask) &&
1468 (grab_mask->key_val == keycode_for_keysym (recv->id, NULL));
1471 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1472 (long int) grab_mask->key_val,
1473 (long int) grab_mask->mod_mask,
1474 grab_mask->pending_add ? '+' : '.',
1475 grab_mask->pending_remove ? '-' : '.',
1476 re_issue_grab ? "re-issue": "");
1481 if (grab_mask->pending_add && grab_mask->pending_remove)
1485 else if (grab_mask->pending_remove)
1488 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1490 XUngrabKey (spi_get_display (),
1492 grab_mask->mod_mask,
1493 gdk_x11_get_default_root_xwindow ());
1497 else if (grab_mask->pending_add || re_issue_grab)
1501 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1503 XGrabKey (spi_get_display (),
1505 grab_mask->mod_mask,
1506 gdk_x11_get_default_root_xwindow (),
1510 XSync (spi_get_display (), False);
1511 update_failed = spi_clear_error_state ();
1512 if (update_failed) {
1513 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1518 grab_mask->pending_add = FALSE;
1519 grab_mask->pending_remove = FALSE;
1523 g_assert (grab_mask->ref_count <= 0);
1525 controller->keygrabs_list = g_list_delete_link (
1526 controller->keygrabs_list, l);
1528 spi_grab_mask_free (grab_mask);
1533 return ! update_failed;
1537 * Implemented GObject::finalize
1540 spi_device_event_controller_object_finalize (GObject *object)
1542 SpiDEController *controller;
1543 DEControllerPrivateData *private;
1544 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1547 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1549 /* disconnect any special listeners, get rid of outstanding keygrabs */
1550 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1552 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1553 if (private->xkb_desc)
1554 XkbFreeKeyboard (private->xkb_desc, 0, True);
1556 spi_device_event_controller_parent_class->finalize (object);
1560 * CORBA Accessibility::DEController::registerKeystrokeListener
1561 * method implementation
1563 static CORBA_boolean
1564 impl_register_keystroke_listener (PortableServer_Servant servant,
1565 const Accessibility_DeviceEventListener l,
1566 const Accessibility_KeySet *keys,
1567 const Accessibility_ControllerEventMask mask,
1568 const Accessibility_EventTypeSeq *type,
1569 const Accessibility_EventListenerMode *mode,
1570 CORBA_Environment *ev)
1572 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1573 bonobo_object_from_servant (servant));
1574 DEControllerKeyListener *dec_listener;
1576 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1577 (void *) l, (unsigned long) mask);
1579 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1580 return spi_controller_register_device_listener (
1581 controller, (DEControllerListener *) dec_listener, ev);
1586 * CORBA Accessibility::DEController::registerDeviceEventListener
1587 * method implementation
1589 static CORBA_boolean
1590 impl_register_device_listener (PortableServer_Servant servant,
1591 const Accessibility_DeviceEventListener l,
1592 const Accessibility_EventTypeSeq *event_types,
1593 CORBA_Environment *ev)
1595 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1596 bonobo_object_from_servant (servant));
1597 DEControllerListener *dec_listener;
1599 dec_listener = spi_dec_listener_new (l, event_types, ev);
1600 return spi_controller_register_device_listener (
1601 controller, (DEControllerListener *) dec_listener, ev);
1605 CORBA_Environment *ev;
1606 DEControllerListener *listener;
1607 } RemoveListenerClosure;
1609 static SpiReEntrantContinue
1610 remove_listener_cb (GList * const *list,
1613 DEControllerListener *listener = (*list)->data;
1614 RemoveListenerClosure *ctx = user_data;
1616 if (CORBA_Object_is_equivalent (ctx->listener->object,
1617 listener->object, ctx->ev))
1619 spi_re_entrant_list_delete_link (list);
1620 spi_dec_listener_free (listener, ctx->ev);
1623 return SPI_RE_ENTRANT_CONTINUE;
1626 static SpiReEntrantContinue
1627 copy_key_listener_cb (GList * const *list,
1630 DEControllerKeyListener *key_listener = (*list)->data;
1631 RemoveListenerClosure *ctx = user_data;
1633 if (CORBA_Object_is_equivalent (ctx->listener->object,
1634 key_listener->listener.object, ctx->ev))
1636 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1637 DEControllerKeyListener *ctx_key_listener =
1638 (DEControllerKeyListener *) ctx->listener;
1639 CORBA_free (ctx_key_listener->keys);
1640 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1643 return SPI_RE_ENTRANT_CONTINUE;
1647 spi_deregister_controller_device_listener (SpiDEController *controller,
1648 DEControllerListener *listener,
1649 CORBA_Environment *ev)
1651 RemoveListenerClosure ctx;
1654 ctx.listener = listener;
1656 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1657 remove_listener_cb, &ctx);
1661 spi_deregister_controller_key_listener (SpiDEController *controller,
1662 DEControllerKeyListener *key_listener,
1663 CORBA_Environment *ev)
1665 RemoveListenerClosure ctx;
1668 ctx.listener = (DEControllerListener *) key_listener;
1670 /* special case, copy keyset from existing controller list entry */
1671 if (key_listener->keys->_length == 0)
1673 spi_re_entrant_list_foreach (&controller->key_listeners,
1674 copy_key_listener_cb, &ctx);
1677 spi_controller_deregister_global_keygrabs (controller, key_listener);
1679 spi_re_entrant_list_foreach (&controller->key_listeners,
1680 remove_listener_cb, &ctx);
1685 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1686 * method implementation
1689 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1690 const Accessibility_DeviceEventListener l,
1691 const Accessibility_KeySet *keys,
1692 const Accessibility_ControllerEventMask mask,
1693 const Accessibility_EventTypeSeq *type,
1694 CORBA_Environment *ev)
1696 DEControllerKeyListener *key_listener;
1697 SpiDEController *controller;
1699 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1701 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1703 #ifdef SPI_DEREGISTER_DEBUG
1704 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1705 (void *) l, (unsigned long) mask->value);
1708 spi_deregister_controller_key_listener (controller, key_listener, ev);
1710 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1714 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1715 * method implementation
1718 impl_deregister_device_listener (PortableServer_Servant servant,
1719 const Accessibility_DeviceEventListener l,
1720 const Accessibility_EventTypeSeq *event_types,
1721 CORBA_Environment *ev)
1723 SpiDEController *controller;
1724 DEControllerListener *listener =
1725 spi_dec_listener_new (l, event_types, ev);
1727 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1729 spi_deregister_controller_device_listener (controller, listener, ev);
1731 spi_dec_listener_free (listener, ev);
1734 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1736 unsigned int retval = 0;
1737 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1738 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1740 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1741 retval = XkbGetSlowKeysDelay (spi_get_display (),
1742 XkbUseCoreKbd, &bounce_delay);
1744 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1746 Status s = XkbGetControls (spi_get_display (),
1747 XkbAllControlsMask, priv->xkb_desc);
1750 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1751 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1756 #ifdef SPI_XKB_DEBUG
1757 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1762 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1764 unsigned int retval = 0;
1765 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1766 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1768 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1769 retval = XkbGetBounceKeysDelay (spi_get_display (),
1770 XkbUseCoreKbd, &bounce_delay);
1772 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1774 Status s = XkbGetControls (spi_get_display (),
1775 XkbAllControlsMask, priv->xkb_desc);
1778 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1779 retval = priv->xkb_desc->ctrls->debounce_delay;
1784 #ifdef SPI_XKB_DEBUG
1785 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1791 dec_synth_keycode_press (SpiDEController *controller,
1792 unsigned int keycode)
1794 unsigned int time = CurrentTime;
1795 unsigned int bounce_delay;
1796 unsigned int elapsed_msec;
1798 DEControllerPrivateData *priv =
1799 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1800 spi_dec_private_quark);
1801 if (keycode == priv->last_release_keycode)
1803 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
1806 gettimeofday (&tv, NULL);
1808 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1809 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1810 #ifdef SPI_XKB_DEBUG
1811 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1812 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
1814 #ifdef THIS_IS_BROKEN
1815 if (elapsed_msec < bounce_delay)
1816 time = bounce_delay - elapsed_msec + 1;
1818 time = bounce_delay + 10;
1819 /* fudge for broken XTest */
1821 #ifdef SPI_XKB_DEBUG
1822 fprintf (stderr, "waiting %d ms\n", time);
1826 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1827 priv->last_press_keycode = keycode;
1828 XSync (spi_get_display (), False);
1829 gettimeofday (&priv->last_press_time, NULL);
1834 dec_synth_keycode_release (SpiDEController *controller,
1835 unsigned int keycode)
1837 unsigned int time = CurrentTime;
1838 unsigned int slow_delay;
1839 unsigned int elapsed_msec;
1841 DEControllerPrivateData *priv =
1842 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1843 spi_dec_private_quark);
1844 if (keycode == priv->last_press_keycode)
1846 slow_delay = dec_xkb_get_slowkeys_delay (controller);
1849 gettimeofday (&tv, NULL);
1851 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1852 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1853 #ifdef SPI_XKB_DEBUG
1854 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1855 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
1857 #ifdef THIS_IS_BROKEN_DUNNO_WHY
1858 if (elapsed_msec < slow_delay)
1859 time = slow_delay - elapsed_msec + 1;
1861 time = slow_delay + 10;
1862 /* our XTest seems broken, we have to add slop as above */
1864 #ifdef SPI_XKB_DEBUG
1865 fprintf (stderr, "waiting %d ms\n", time);
1869 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1870 priv->last_release_keycode = keycode;
1871 XSync (spi_get_display (), False);
1872 gettimeofday (&priv->last_release_time, NULL);
1877 dec_get_modifier_state (SpiDEController *controller)
1879 return mouse_mask_state;
1883 dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
1885 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1886 modifiers, modifiers);
1890 dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
1892 return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1896 dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
1898 /* TODO: table lookups within a range, for various code pages! */
1899 KeySym keysym = NoSymbol;
1901 if (unichar >= 0x20 && unichar < 0x7f) { /* Basic Latin/ASCII */
1902 keysym = (KeySym) unichar;
1904 else if (unichar >= 0xa0 && unichar <= 0xff) { /* Latin 1 extensions */
1905 keysym = (KeySym) unichar;
1907 else if (unichar >= 0x100 && unichar <= 0x233) { /* unfortunately the mapping gets nasty for Latin-2 and 3... help! */
1910 else if (unichar >= 0x7c1 && unichar <= 0x3a1) { /* let's try Greek anyway... */
1911 keysym = (KeySym) (0x391 + (unichar - 0x7c1));
1913 else if (unichar >= 0x3a3 && unichar <= 0x3a9) { /* let's try Greek anyway... */
1914 keysym = (KeySym) (0x7d2 + (unichar - 0x3a3));
1916 else if (unichar >= 0x3b1 && unichar <= 0x3c1) { /* let's try Greek anyway... */
1917 keysym = (KeySym) (0x7e1 + (unichar - 0x3b1));
1919 else if (unichar == 0x3c2) {
1920 keysym = (KeySym) 0x7f3; /* XK_Greek_finalsmallsigma; */
1922 else if (unichar >= 0x3c3 && unichar <= 0x3c9) { /* let's try Greek anyway... */
1923 keysym = (KeySym) (0x7f2 + (unichar - 0x3c2));
1925 else if (unichar >= 0x5d0 && unichar <= 0x5ea) { /* Hebrew basics */
1926 /* probably broken :-) */
1927 keysym = (KeySym) (0xce0 + (unichar - 0x5d0));
1929 else if (unichar >= 0x30a1 && unichar <= 0x30ab) { /* partial katakana support */
1930 /* TODO: complete! */
1931 keysym = (KeySym) (0x4b1 + (unichar - 0x30a1)/2);
1933 else if (unichar >= 0x20a0 && unichar <= 0x20ac) { /* currency */
1934 keysym = (KeySym) unichar; /* how convenient ;-) */
1940 dec_synth_keysym (SpiDEController *controller, KeySym keysym)
1942 KeyCode key_synth_code;
1943 unsigned int modifiers, synth_mods, lock_mods;
1945 key_synth_code = keycode_for_keysym (keysym, &synth_mods);
1947 if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1949 /* TODO: set the modifiers accordingly! */
1950 modifiers = dec_get_modifier_state (controller);
1951 /* side-effect; we may unset mousebutton modifiers here! */
1953 if (synth_mods != modifiers) {
1954 lock_mods = synth_mods & ~modifiers;
1955 dec_lock_modifiers (controller, lock_mods);
1957 dec_synth_keycode_press (controller, key_synth_code);
1958 dec_synth_keycode_release (controller, key_synth_code);
1959 if (synth_mods != modifiers)
1960 dec_unlock_modifiers (controller, lock_mods);
1966 dec_synth_keystring (SpiDEController *controller, const CORBA_char *keystring)
1968 /* probably we need to create and inject an XIM handler eventually. */
1969 /* for now, try to match the string to existing
1970 * keycode+modifier states.
1974 gunichar unichar = 0;
1976 gboolean retval = TRUE;
1979 maxlen = strlen (keystring);
1980 keysyms = g_new0 (KeySym, maxlen);
1981 if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
1986 fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
1988 while (keystring && (unichar = g_utf8_get_char (keystring))) {
1993 mbytes = g_unichar_to_utf8 (unichar, bytes);
1994 bytes[mbytes] = '\0';
1996 fprintf (stderr, "[unichar %s]", bytes);
1998 keysym = dec_keysym_for_unichar (controller, unichar);
1999 if (keysym == NoSymbol) {
2001 fprintf (stderr, "no keysym for %s", bytes);
2006 keysyms[i++] = keysym;
2007 keystring = g_utf8_next_char (keystring);
2010 for (i = 0; keysyms[i]; ++i) {
2011 if (!dec_synth_keysym (controller, keysyms[i])) {
2013 fprintf (stderr, "could not synthesize %c\n",
2028 * CORBA Accessibility::DEController::registerKeystrokeListener
2029 * method implementation
2032 impl_generate_keyboard_event (PortableServer_Servant servant,
2033 const CORBA_long keycode,
2034 const CORBA_char *keystring,
2035 const Accessibility_KeySynthType synth_type,
2036 CORBA_Environment *ev)
2038 SpiDEController *controller =
2039 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
2040 long key_synth_code;
2044 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
2045 (long) keycode, (int) synth_type);
2047 /* TODO: hide/wrap/remove X dependency */
2050 * TODO: when initializing, query for XTest extension before using,
2051 * and fall back to XSendEvent() if XTest is not available.
2054 /* TODO: implement keystring mode also */
2055 gdk_error_trap_push ();
2056 key_synth_code = keycode;
2060 case Accessibility_KEY_PRESS:
2061 dec_synth_keycode_press (controller, keycode);
2063 case Accessibility_KEY_PRESSRELEASE:
2064 dec_synth_keycode_press (controller, keycode);
2065 case Accessibility_KEY_RELEASE:
2066 dec_synth_keycode_release (controller, keycode);
2068 case Accessibility_KEY_SYM:
2069 #ifdef SPI_XKB_DEBUG
2070 fprintf (stderr, "KeySym synthesis\n");
2073 * note: we are using long for 'keycode'
2074 * in our arg list; it can contain either
2075 * a keycode or a keysym.
2077 dec_synth_keysym (controller, (KeySym) keycode);
2079 case Accessibility_KEY_STRING:
2080 if (!dec_synth_keystring (controller, keystring))
2081 fprintf (stderr, "Keystring synthesis failure, string=%s\n",
2085 if (gdk_error_trap_pop ())
2087 DBG (-1, g_warning ("Error emitting keystroke"));
2089 if (synth_type == Accessibility_KEY_SYM) {
2093 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
2095 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
2097 spi_dec_clear_unlatch_pending (controller);
2101 /* Accessibility::DEController::generateMouseEvent */
2103 impl_generate_mouse_event (PortableServer_Servant servant,
2106 const CORBA_char *eventName,
2107 CORBA_Environment *ev)
2110 gboolean error = FALSE;
2111 Display *display = spi_get_display ();
2113 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
2114 eventName, (long int) x, (long int) y);
2116 switch (eventName[0])
2119 switch (eventName[1])
2121 /* TODO: check number of buttons before parsing */
2142 if (x != -1 && y != -1)
2144 XTestFakeMotionEvent (display, DefaultScreen (display),
2147 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
2148 if (eventName[2] == 'c')
2149 XTestFakeButtonEvent (display, button, FALSE, 1);
2150 else if (eventName[2] == 'd')
2152 XTestFakeButtonEvent (display, button, FALSE, 1);
2153 XTestFakeButtonEvent (display, button, TRUE, 2);
2154 XTestFakeButtonEvent (display, button, FALSE, 3);
2158 case 'r': /* relative motion */
2159 XTestFakeRelativeMotionEvent (display, x, y, 0);
2161 case 'a': /* absolute motion */
2162 XTestFakeMotionEvent (display, DefaultScreen (display),
2168 /* Accessibility::DEController::notifyListenersSync */
2169 static CORBA_boolean
2170 impl_notify_listeners_sync (PortableServer_Servant servant,
2171 const Accessibility_DeviceEvent *event,
2172 CORBA_Environment *ev)
2174 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2175 bonobo_object_from_servant (servant));
2177 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
2178 controller, (int) event->id);
2180 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
2181 CORBA_TRUE : CORBA_FALSE;
2184 /* Accessibility::DEController::notifyListenersAsync */
2186 impl_notify_listeners_async (PortableServer_Servant servant,
2187 const Accessibility_DeviceEvent *event,
2188 CORBA_Environment *ev)
2190 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
2191 bonobo_object_from_servant (servant));
2193 fprintf (stderr, "notifying listeners asynchronously\n");
2195 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
2199 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
2201 GObjectClass * object_class = (GObjectClass *) klass;
2202 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
2204 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2206 object_class->finalize = spi_device_event_controller_object_finalize;
2208 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2209 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2210 epv->registerDeviceEventListener = impl_register_device_listener;
2211 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2212 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2213 epv->generateMouseEvent = impl_generate_mouse_event;
2214 epv->notifyListenersSync = impl_notify_listeners_sync;
2215 epv->notifyListenersAsync = impl_notify_listeners_async;
2217 if (!spi_dec_private_quark)
2218 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2222 spi_device_event_controller_init (SpiDEController *device_event_controller)
2224 DEControllerPrivateData *private;
2225 device_event_controller->key_listeners = NULL;
2226 device_event_controller->mouse_listeners = NULL;
2227 device_event_controller->keygrabs_list = NULL;
2229 private = g_new0 (DEControllerPrivateData, 1);
2230 gettimeofday (&private->last_press_time, NULL);
2231 gettimeofday (&private->last_release_time, NULL);
2232 g_object_set_qdata (G_OBJECT (device_event_controller),
2233 spi_dec_private_quark,
2235 spi_controller_register_with_devices (device_event_controller);
2239 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2240 const XEvent *event)
2242 gboolean is_consumed = FALSE;
2243 CORBA_Environment ev;
2244 Accessibility_DeviceEvent key_event;
2246 g_assert (event->type == KeyPress || event->type == KeyRelease);
2248 CORBA_exception_init (&ev);
2250 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2252 spi_controller_update_key_grabs (controller, &key_event);
2254 /* relay to listeners, and decide whether to consume it or not */
2255 is_consumed = spi_controller_notify_keylisteners (
2256 controller, &key_event, CORBA_TRUE, &ev);
2260 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
2264 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
2269 spi_device_event_controller_new (SpiRegistry *registry)
2271 SpiDEController *retval = g_object_new (
2272 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2274 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2275 BONOBO_OBJECT (registry)));
2277 spi_dec_init_mouse_listener (registry);
2278 /* TODO: kill mouse listener on finalize */
2282 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2283 Accessibility_DeviceEventController,
2285 spi_device_event_controller)