1 /* AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2002 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 #define 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;
65 static GQuark spi_dec_private_quark = 0;
67 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
71 SPI_DEVICE_TYPE_MOUSE,
72 SPI_DEVICE_TYPE_LAST_DEFINED
73 } SpiDeviceTypeCategory;
77 guint pending_add : 1;
78 guint pending_remove : 1;
80 Accessibility_ControllerEventMask mod_mask;
81 CORBA_unsigned_long key_val; /* KeyCode */
82 } DEControllerGrabMask;
86 SpiDeviceTypeCategory type;
87 Accessibility_EventTypeSeq *typeseq;
88 } DEControllerListener;
91 DEControllerListener listener;
93 Accessibility_KeySet *keys;
94 Accessibility_ControllerEventMask mask;
95 Accessibility_EventListenerMode *mode;
96 } DEControllerKeyListener;
99 unsigned int last_press_keycode;
100 unsigned int last_release_keycode;
101 struct timeval last_press_time;
102 struct timeval last_release_time;
104 int xkb_major_extension_opcode;
105 int xkb_base_event_code;
106 int xkb_base_error_code;
107 unsigned int xkb_latch_mask;
108 unsigned int pending_xkb_mod_relatch_mask;
110 } DEControllerPrivateData;
112 static void spi_controller_register_with_devices (SpiDEController *controller);
113 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
114 Accessibility_DeviceEvent *recv);
115 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
116 DEControllerListener *l,
117 CORBA_Environment *ev);
118 static void spi_device_event_controller_forward_key_event (SpiDEController *controller,
119 const XEvent *event);
120 static void spi_deregister_controller_device_listener (SpiDEController *controller,
121 DEControllerListener *listener,
122 CORBA_Environment *ev);
123 static void spi_deregister_controller_key_listener (SpiDEController *controller,
124 DEControllerKeyListener *key_listener,
125 CORBA_Environment *ev);
126 static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
127 const Accessibility_DeviceEvent *event,
128 CORBA_Environment *ev);
130 static gboolean spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
131 const Accessibility_DeviceEvent *event);
132 static gboolean spi_clear_error_state (void);
133 static gboolean spi_dec_poll_mouse_moved (gpointer data);
134 static gboolean spi_dec_poll_mouse_moving (gpointer data);
135 static gboolean spi_dec_poll_mouse_idle (gpointer data);
137 #define spi_get_display() GDK_DISPLAY()
139 /* Private methods */
142 keycode_for_keysym (long keysym)
144 return XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
147 static DEControllerGrabMask *
148 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
150 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
152 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
154 clone->ref_count = 1;
155 clone->pending_add = TRUE;
156 clone->pending_remove = FALSE;
162 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
168 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
170 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
171 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
179 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
184 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
186 DEControllerPrivateData *priv =
187 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
189 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
190 priv->xkb_latch_mask);
192 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
196 spi_dec_clear_unlatch_pending (SpiDEController *controller)
198 DEControllerPrivateData *priv =
199 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
200 priv->xkb_latch_mask = 0;
204 spi_dec_button_update_and_emit (SpiDEController *controller,
207 CORBA_Environment ev;
208 Accessibility_Event e;
209 Accessibility_DeviceEvent mouse_e;
210 gchar event_name[24];
211 gboolean is_consumed = FALSE;
213 if ((mask_return & mouse_button_mask) !=
214 (mouse_mask_state & mouse_button_mask))
216 int button_number = 0;
217 gboolean is_down = False;
219 if (!(mask_return & Button1Mask) &&
220 (mouse_mask_state & Button1Mask))
222 mouse_mask_state &= ~Button1Mask;
225 else if ((mask_return & Button1Mask) &&
226 !(mouse_mask_state & Button1Mask))
228 mouse_mask_state |= Button1Mask;
232 else if (!(mask_return & Button2Mask) &&
233 (mouse_mask_state & Button2Mask))
235 mouse_mask_state &= ~Button2Mask;
238 else if ((mask_return & Button2Mask) &&
239 !(mouse_mask_state & Button2Mask))
241 mouse_mask_state |= Button2Mask;
245 else if (!(mask_return & Button3Mask) &&
246 (mouse_mask_state & Button3Mask))
248 mouse_mask_state &= ~Button3Mask;
251 else if ((mask_return & Button3Mask) &&
252 !(mouse_mask_state & Button3Mask))
254 mouse_mask_state |= Button3Mask;
258 else if (!(mask_return & Button4Mask) &&
259 (mouse_mask_state & Button4Mask))
261 mouse_mask_state &= ~Button4Mask;
264 else if ((mask_return & Button4Mask) &&
265 !(mouse_mask_state & Button4Mask))
267 mouse_mask_state |= Button4Mask;
271 else if (!(mask_return & Button5Mask) &&
272 (mouse_mask_state & Button5Mask))
274 mouse_mask_state &= ~Button5Mask;
277 else if ((mask_return & Button5Mask) &&
278 !(mouse_mask_state & Button5Mask))
280 mouse_mask_state |= Button5Mask;
286 fprintf (stderr, "Button %d %s\n",
287 button_number, (is_down) ? "Pressed" : "Released");
289 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
290 (is_down) ? 'p' : 'r');
291 /* TODO: distinguish between physical and
294 mouse_e.type = (is_down) ?
295 Accessibility_BUTTON_PRESSED_EVENT :
296 Accessibility_BUTTON_RELEASED_EVENT;
297 mouse_e.id = button_number;
298 mouse_e.hw_code = button_number;
299 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
300 mouse_e.timestamp = 0;
301 mouse_e.event_string = "";
302 mouse_e.is_text = CORBA_FALSE;
304 spi_controller_notify_mouselisteners (controller,
308 e.source = BONOBO_OBJREF (controller->registry->desktop);
309 e.detail1 = last_mouse_pos->x;
310 e.detail2 = last_mouse_pos->y;
311 spi_init_any_nil (&e.any_data);
312 CORBA_exception_init (&ev);
315 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
320 spi_dec_set_unlatch_pending (controller, mask_return);
332 spi_dec_mouse_check (SpiDEController *controller,
333 int *x, int *y, gboolean *moved)
335 Accessibility_Event e;
336 CORBA_Environment ev;
337 int win_x_return,win_y_return;
338 unsigned int mask_return;
339 Window root_return, child_return;
340 Display *display = spi_get_display ();
343 XQueryPointer(display, DefaultRootWindow (display),
344 &root_return, &child_return,
346 &win_x_return, &win_y_return, &mask_return);
348 * Since many clients grab the pointer, and X goes an automatic
349 * pointer grab on mouse-down, we often must detect mouse button events
350 * by polling rather than via a button grab.
351 * The while loop (rather than if) is used since it's possible that
352 * multiple buttons have changed state since we last checked.
354 if (mask_return != mouse_mask_state)
356 while (spi_dec_button_update_and_emit (controller, mask_return));
359 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
361 e.type = "mouse:abs";
362 e.source = BONOBO_OBJREF (controller->registry->desktop);
365 spi_init_any_nil (&e.any_data);
366 CORBA_exception_init (&ev);
367 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
370 e.type = "mouse:rel";
371 e.source = BONOBO_OBJREF (controller->registry->desktop);
372 e.detail1 = *x - last_mouse_pos->x;
373 e.detail2 = *y - last_mouse_pos->y;
374 spi_init_any_nil (&e.any_data);
375 CORBA_exception_init (&ev);
376 last_mouse_pos->x = *x;
377 last_mouse_pos->y = *y;
378 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
392 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
395 Accessibility_Event e;
396 CORBA_Environment ev;
399 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
400 prev_mask, current_mask);
402 e.type = "keyboard:modifiers";
403 e.source = BONOBO_OBJREF (controller->registry->desktop);
404 e.detail1 = prev_mask & key_modifier_mask;
405 e.detail2 = current_mask & key_modifier_mask;
406 spi_init_any_nil (&e.any_data);
407 CORBA_exception_init (&ev);
408 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
414 spi_dec_poll_mouse_moved (gpointer data)
416 SpiRegistry *registry = SPI_REGISTRY (data);
417 SpiDEController *controller = registry->de_controller;
422 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
424 if ((mask_return & key_modifier_mask) !=
425 (mouse_mask_state & key_modifier_mask))
427 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
428 mouse_mask_state = mask_return;
435 spi_dec_poll_mouse_idle (gpointer data)
437 if (! spi_dec_poll_mouse_moved (data))
441 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
447 spi_dec_poll_mouse_moving (gpointer data)
449 if (spi_dec_poll_mouse_moved (data))
453 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
458 #ifdef WE_NEED_UGRAB_MOUSE
460 spi_dec_ungrab_mouse (gpointer data)
462 Display *display = spi_get_display ();
465 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
466 XDefaultRootWindow (spi_get_display ()));
473 spi_dec_init_mouse_listener (SpiRegistry *registry)
475 Display *display = spi_get_display ();
476 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
480 if (XGrabButton (display, AnyButton, AnyModifier,
481 gdk_x11_get_default_root_xwindow (),
482 True, ButtonPressMask | ButtonReleaseMask,
483 GrabModeSync, GrabModeAsync, None, None) != Success)
484 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
485 XSync (display, False);
487 fprintf (stderr, "mouse buttons grabbed\n");
492 static DEControllerKeyListener *
493 spi_dec_key_listener_new (CORBA_Object l,
494 const Accessibility_KeySet *keys,
495 const Accessibility_ControllerEventMask mask,
496 const Accessibility_EventTypeSeq *typeseq,
497 const Accessibility_EventListenerMode *mode,
498 CORBA_Environment *ev)
500 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
501 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
502 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
503 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
504 key_listener->mask = mask;
505 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
507 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
509 key_listener->mode = NULL;
512 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
513 (unsigned int) key_listener->mask,
514 (int) (mode ? mode->global : 0),
515 (void *) key_listener->keys,
516 (int) (key_listener->keys ? key_listener->keys->_length : 0));
522 static DEControllerListener *
523 spi_dec_listener_new (CORBA_Object l,
524 const Accessibility_EventTypeSeq *typeseq,
525 CORBA_Environment *ev)
527 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
528 listener->object = bonobo_object_dup_ref (l, ev);
529 listener->type = SPI_DEVICE_TYPE_MOUSE;
530 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
534 static DEControllerListener *
535 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
537 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
539 CORBA_Object_duplicate (listener->object, ev);
540 clone->type = listener->type;
541 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
545 static DEControllerKeyListener *
546 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
548 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
549 clone->listener.object =
550 CORBA_Object_duplicate (key_listener->listener.object, ev);
551 clone->listener.type = SPI_DEVICE_TYPE_KBD;
552 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
553 clone->mask = key_listener->mask;
554 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
555 if (key_listener->mode)
556 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
563 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
565 CORBA_free (key_listener->listener.typeseq);
566 CORBA_free (key_listener->keys);
567 g_free (key_listener);
571 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
573 CORBA_Object_release (clone->listener.object, ev);
574 spi_key_listener_data_free (clone, ev);
578 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
580 CORBA_Object_release (clone->object, ev);
581 CORBA_free (clone->typeseq);
586 spi_dec_listener_free (DEControllerListener *listener,
587 CORBA_Environment *ev)
589 bonobo_object_release_unref (listener->object, ev);
590 if (listener->type == SPI_DEVICE_TYPE_KBD)
591 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
595 _register_keygrab (SpiDEController *controller,
596 DEControllerGrabMask *grab_mask)
600 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
601 spi_grab_mask_compare_values);
604 DEControllerGrabMask *cur_mask = l->data;
606 cur_mask->ref_count++;
607 if (cur_mask->pending_remove)
609 cur_mask->pending_remove = FALSE;
614 controller->keygrabs_list =
615 g_list_prepend (controller->keygrabs_list,
616 spi_grab_mask_clone (grab_mask));
621 _deregister_keygrab (SpiDEController *controller,
622 DEControllerGrabMask *grab_mask)
626 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
627 spi_grab_mask_compare_values);
631 DEControllerGrabMask *cur_mask = l->data;
633 cur_mask->ref_count--;
634 if (cur_mask->ref_count <= 0)
636 cur_mask->pending_remove = TRUE;
641 DBG (1, g_warning ("De-registering non-existant grab"));
646 handle_keygrab (SpiDEController *controller,
647 DEControllerKeyListener *key_listener,
648 void (*process_cb) (SpiDEController *controller,
649 DEControllerGrabMask *grab_mask))
651 DEControllerGrabMask grab_mask = { 0 };
653 grab_mask.mod_mask = key_listener->mask;
654 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
656 grab_mask.key_val = AnyKey;
658 fprintf (stderr, "AnyKey grab!");
660 process_cb (controller, &grab_mask);
666 for (i = 0; i < key_listener->keys->_length; ++i)
668 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
669 long int key_val = keydef.keysym;
670 /* X Grabs require keycodes, not keysyms */
671 if (keydef.keystring && keydef.keystring[0])
673 key_val = XStringToKeysym(keydef.keystring);
677 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
681 key_val = keydef.keycode;
683 grab_mask.key_val = key_val;
684 process_cb (controller, &grab_mask);
690 spi_controller_register_global_keygrabs (SpiDEController *controller,
691 DEControllerKeyListener *key_listener)
693 handle_keygrab (controller, key_listener, _register_keygrab);
694 return spi_controller_update_key_grabs (controller, NULL);
698 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
699 DEControllerKeyListener *key_listener)
701 handle_keygrab (controller, key_listener, _deregister_keygrab);
702 spi_controller_update_key_grabs (controller, NULL);
706 spi_controller_register_device_listener (SpiDEController *controller,
707 DEControllerListener *listener,
708 CORBA_Environment *ev)
710 DEControllerKeyListener *key_listener;
712 switch (listener->type) {
713 case SPI_DEVICE_TYPE_KBD:
714 key_listener = (DEControllerKeyListener *) listener;
716 controller->key_listeners = g_list_prepend (controller->key_listeners,
718 if (key_listener->mode->global)
720 return spi_controller_register_global_keygrabs (controller, key_listener);
725 case SPI_DEVICE_TYPE_MOUSE:
726 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
729 DBG (1, g_warning ("listener registration for unknown device type.\n"));
736 spi_controller_notify_mouselisteners (SpiDEController *controller,
737 const Accessibility_DeviceEvent *event,
738 CORBA_Environment *ev)
741 GSList *notify = NULL, *l2;
742 GList **listeners = &controller->mouse_listeners;
743 gboolean is_consumed;
750 for (l = *listeners; l; l = l->next)
752 DEControllerListener *listener = l->data;
754 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
756 Accessibility_DeviceEventListener ls = listener->object;
758 if (ls != CORBA_OBJECT_NIL)
760 /* we clone (don't dup) the listener, to avoid refcount inc. */
761 notify = g_slist_prepend (notify,
762 spi_listener_clone (listener, ev));
767 #ifdef SPI_KEYEVENT_DEBUG
770 g_print ("no match for event\n");
775 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
777 DEControllerListener *listener = l2->data;
778 Accessibility_DeviceEventListener ls = listener->object;
780 CORBA_exception_init (ev);
781 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
785 DBG (2, g_warning ("error notifying listener, removing it\n"));
786 spi_deregister_controller_device_listener (controller, listener,
788 CORBA_exception_free (ev);
791 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
794 for (; l2; l2 = l2->next)
796 DEControllerListener *listener = l2->data;
797 spi_listener_clone_free (listener, ev);
798 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
801 g_slist_free (notify);
804 if (is_consumed) g_message ("consumed\n");
810 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
813 Accessibility_Event e;
814 Accessibility_DeviceEvent mouse_e;
815 CORBA_Environment ev;
816 gchar event_name[24];
817 gboolean is_consumed = FALSE;
818 gboolean xkb_mod_unlatch_occurred;
819 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
821 int button = xbutton_event->button;
823 unsigned int mouse_button_state = xbutton_event->state;
828 mouse_button_state |= Button1Mask;
831 mouse_button_state |= Button2Mask;
834 mouse_button_state |= Button3Mask;
837 mouse_button_state |= Button4Mask;
840 mouse_button_state |= Button5Mask;
844 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
845 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
848 fprintf (stderr, "mouse button %d %s (%x)\n",
849 xbutton_event->button,
850 (xevent->type == ButtonPress) ? "Press" : "Release",
853 snprintf (event_name, 22, "mouse:button:%d%c", button,
854 (xevent->type == ButtonPress) ? 'p' : 'r');
856 /* TODO: distinguish between physical and logical buttons */
857 mouse_e.type = (xevent->type == ButtonPress) ?
858 Accessibility_BUTTON_PRESSED_EVENT :
859 Accessibility_BUTTON_RELEASED_EVENT;
861 mouse_e.hw_code = button;
862 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
863 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
864 mouse_e.event_string = "";
865 mouse_e.is_text = CORBA_FALSE;
866 if ((mouse_button_state & mouse_button_mask) !=
867 (mouse_mask_state & mouse_button_mask))
869 if ((mouse_mask_state & key_modifier_mask) !=
870 (mouse_button_state & key_modifier_mask))
871 spi_dec_emit_modifier_event (controller,
872 mouse_mask_state, mouse_button_state);
873 mouse_mask_state = mouse_button_state;
875 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
876 e.type = CORBA_string_dup (event_name);
877 e.source = BONOBO_OBJREF (controller->registry->desktop);
878 e.detail1 = last_mouse_pos->x;
879 e.detail2 = last_mouse_pos->y;
880 spi_init_any_nil (&e.any_data);
881 CORBA_exception_init (&ev);
883 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
888 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
889 xevent->type == ButtonRelease);
891 /* if client wants to consume this event, and XKB latch state was
892 * unset by this button event, we reset it
894 if (is_consumed && xkb_mod_unlatch_occurred)
895 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
897 XAllowEvents (spi_get_display (),
898 (is_consumed) ? SyncPointer : ReplayPointer,
902 static GdkFilterReturn
903 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
905 XEvent *xevent = gdk_xevent;
906 SpiDEController *controller;
907 DEControllerPrivateData *priv;
908 Display *display = spi_get_display ();
909 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
910 priv = (DEControllerPrivateData *)
911 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
913 if (xevent->type == KeyPress || xevent->type == KeyRelease)
915 spi_device_event_controller_forward_key_event (controller, xevent);
916 return GDK_FILTER_CONTINUE;
918 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
920 spi_device_event_controller_forward_mouse_event (controller, xevent);
922 if (xevent->type == priv->xkb_base_event_code)
924 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
925 /* ugly but probably necessary...*/
926 XSynchronize (spi_get_display (), TRUE);
928 if (xkb_ev->xkb_type == XkbStateNotify)
930 XkbStateNotifyEvent *xkb_snev =
931 (XkbStateNotifyEvent *) xkb_ev;
932 /* check the mouse, to catch mouse events grabbed by
933 * another client; in case we should revert this XKB delatch
935 if (!priv->pending_xkb_mod_relatch_mask)
939 spi_dec_mouse_check (controller, &x, &y, &moved);
941 /* we check again, since the previous call may have
943 if (priv->pending_xkb_mod_relatch_mask)
945 unsigned int feedback_mask;
947 fprintf (stderr, "relatching %x\n",
948 priv->pending_xkb_mod_relatch_mask);
950 /* temporarily turn off the latch bell, if it's on */
951 XkbGetControls (display,
952 XkbAccessXFeedbackMask,
954 feedback_mask = priv->xkb_desc->ctrls->ax_options;
955 if (feedback_mask & XkbAX_StickyKeysFBMask)
957 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
959 priv->xkb_desc->ctrls->ax_options
960 &= ~(XkbAX_StickyKeysFBMask);
961 XkbChangeControls (display, priv->xkb_desc, &changes);
963 /* TODO: account for lock as well as latch */
964 XkbLatchModifiers (display,
966 priv->pending_xkb_mod_relatch_mask,
967 priv->pending_xkb_mod_relatch_mask);
968 if (feedback_mask & XkbAX_StickyKeysFBMask)
970 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
972 priv->xkb_desc->ctrls->ax_options = feedback_mask;
973 XkbChangeControls (display, priv->xkb_desc, &changes);
976 fprintf (stderr, "relatched %x\n",
977 priv->pending_xkb_mod_relatch_mask);
979 priv->pending_xkb_mod_relatch_mask = 0;
983 priv->xkb_latch_mask = xkb_snev->latched_mods;
987 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
988 XSynchronize (spi_get_display (), FALSE);
991 return GDK_FILTER_CONTINUE;
995 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
997 if (error->error_code == BadAccess)
999 g_message ("Could not complete key grab: grab already in use.\n");
1000 spi_error_code = BadAccess;
1005 return (*x_default_error_handler) (display, error);
1010 spi_controller_register_with_devices (SpiDEController *controller)
1012 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1013 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1014 /* FIXME: should check for extension first! */
1015 XTestGrabControl (spi_get_display (), True);
1017 /* calls to device-specific implementations and routines go here */
1018 /* register with: keyboard hardware code handler */
1019 /* register with: (translated) keystroke handler */
1021 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1022 &priv->xkb_major_extension_opcode,
1023 &priv->xkb_base_event_code,
1024 &priv->xkb_base_error_code, NULL, NULL);
1027 priv->xkb_desc = XkbGetMap (spi_get_display (), 0, XkbUseCoreKbd);
1028 XkbSelectEvents (spi_get_display (),
1030 XkbStateNotifyMask, XkbStateNotifyMask);
1033 gdk_window_add_filter (NULL, global_filter_fn, controller);
1035 gdk_window_set_events (gdk_get_default_root_window (),
1036 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1038 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1042 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1043 const Accessibility_DeviceEvent *key_event)
1050 g_print ("null key set!");
1054 len = key_set->_length;
1056 if (len == 0) /* special case, means "all keys/any key" */
1058 g_print ("anykey\n");
1062 for (i = 0; i < len; ++i)
1064 #ifdef SPI_KEYEVENT_DEBUG
1065 g_print ("key_set[%d] = %d; key_event %d, code %d, string %s\n",
1066 i, (int) key_set->_buffer[i].keycode,
1067 (int) key_event->id, (int) key_event->hw_code,
1068 key_event->event_string);
1070 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1074 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1078 if (key_event->event_string && key_event->event_string[0] &&
1079 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1089 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1090 const Accessibility_DeviceEvent *event)
1098 g_print ("null type seq!");
1102 len = type_seq->_length;
1104 if (len == 0) /* special case, means "all events/any event" */
1109 for (i = 0; i < len; ++i)
1112 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1113 (int) type_seq->_buffer[i], (int) event->type);
1115 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1125 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1126 DEControllerKeyListener *listener,
1127 CORBA_boolean is_system_global)
1129 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFFFF)) &&
1130 spi_key_set_contains_key (listener->keys, key_event) &&
1131 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1132 (is_system_global == listener->mode->global))
1143 spi_controller_notify_keylisteners (SpiDEController *controller,
1144 const Accessibility_DeviceEvent *key_event,
1145 CORBA_boolean is_system_global,
1146 CORBA_Environment *ev)
1149 GSList *notify = NULL, *l2;
1150 GList **key_listeners = &controller->key_listeners;
1151 gboolean is_consumed;
1158 for (l = *key_listeners; l; l = l->next)
1160 DEControllerKeyListener *key_listener = l->data;
1162 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1164 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1166 if (ls != CORBA_OBJECT_NIL)
1168 /* we clone (don't dup) the listener, to avoid refcount inc. */
1169 notify = g_slist_prepend (notify,
1170 spi_key_listener_clone (key_listener, ev));
1175 #ifdef SPI_KEYEVENT_DEBUG
1178 g_print ("no match for event\n");
1182 is_consumed = FALSE;
1183 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1185 DEControllerKeyListener *key_listener = l2->data;
1186 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1188 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
1192 is_consumed = FALSE;
1193 spi_deregister_controller_key_listener (controller, key_listener,
1195 CORBA_exception_free (ev);
1198 spi_key_listener_clone_free (key_listener, ev);
1201 for (; l2; l2 = l2->next)
1203 DEControllerKeyListener *key_listener = l2->data;
1204 spi_key_listener_clone_free (key_listener, ev);
1205 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1208 g_slist_free (notify);
1211 if (is_consumed) g_message ("consumed\n");
1217 spi_clear_error_state ()
1219 gboolean retval = spi_error_code != 0;
1224 static Accessibility_DeviceEvent
1225 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1227 Accessibility_DeviceEvent key_event;
1229 const int cbuf_bytes = 20;
1230 char cbuf [cbuf_bytes+1];
1233 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1234 key_event.id = (CORBA_long)(keysym);
1235 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1236 if (((XEvent *) x_key_event)->type == KeyPress)
1238 key_event.type = Accessibility_KEY_PRESSED;
1242 key_event.type = Accessibility_KEY_RELEASED;
1244 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1245 key_event.is_text = CORBA_FALSE;
1249 key_event.event_string = CORBA_string_dup ("space");
1252 #ifdef SPI_KEYEVENT_DEBUG
1253 fprintf(stderr, "Tab\n");
1255 key_event.event_string = CORBA_string_dup ("Tab");
1258 key_event.event_string = CORBA_string_dup ("Backspace");
1261 key_event.event_string = CORBA_string_dup ("Return");
1264 key_event.event_string = CORBA_string_dup ("Home");
1267 key_event.event_string = CORBA_string_dup ("Page_Down");
1270 key_event.event_string = CORBA_string_dup ("Page_Up");
1273 key_event.event_string = CORBA_string_dup ("F1");
1276 key_event.event_string = CORBA_string_dup ("F2");
1279 key_event.event_string = CORBA_string_dup ("F3");
1282 key_event.event_string = CORBA_string_dup ("F4");
1285 key_event.event_string = CORBA_string_dup ("F5");
1288 key_event.event_string = CORBA_string_dup ("F6");
1291 key_event.event_string = CORBA_string_dup ("F7");
1294 key_event.event_string = CORBA_string_dup ("F8");
1297 key_event.event_string = CORBA_string_dup ("F9");
1300 key_event.event_string = CORBA_string_dup ("F10");
1303 key_event.event_string = CORBA_string_dup ("F11");
1306 key_event.event_string = CORBA_string_dup ("F12");
1309 key_event.event_string = CORBA_string_dup ("End");
1312 key_event.event_string = CORBA_string_dup ("Escape");
1315 key_event.event_string = CORBA_string_dup ("Up");
1318 key_event.event_string = CORBA_string_dup ("Down");
1321 key_event.event_string = CORBA_string_dup ("Left");
1324 key_event.event_string = CORBA_string_dup ("Right");
1329 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1330 key_event.event_string = CORBA_string_dup (cbuf);
1331 if ((keysym && g_ascii_isprint (keysym)) || (nbytes == 1))
1333 key_event.is_text = CORBA_TRUE;
1334 /* FIXME: incorrect for some composed chars, unicode chars? */
1339 key_event.event_string = CORBA_string_dup ("");
1343 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1344 #ifdef SPI_KEYEVENT_DEBUG
1346 "Key %lu pressed (%c), modifiers %d\n",
1347 (unsigned long) keysym,
1348 keysym ? (int) keysym : '*',
1349 (int) x_key_event->state);
1352 fprintf (stderr, "%s%c",
1353 (x_key_event->state & Mod1Mask)?"Alt-":"",
1354 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1355 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1356 #endif /* SPI_DEBUG */
1361 spi_controller_update_key_grabs (SpiDEController *controller,
1362 Accessibility_DeviceEvent *recv)
1365 gboolean update_failed = FALSE;
1367 g_return_val_if_fail (controller != NULL, FALSE);
1370 * masks known to work with default RH 7.1+:
1371 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1372 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1373 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1374 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1376 * ControlMask grabs are broken, must be in use already
1378 for (l = controller->keygrabs_list; l; l = next)
1381 gboolean re_issue_grab;
1382 DEControllerGrabMask *grab_mask = l->data;
1386 re_issue_grab = recv &&
1387 /* (recv->type == Accessibility_KEY_RELEASED) && - (?) */
1388 (recv->modifiers & grab_mask->mod_mask) &&
1389 (grab_mask->key_val == keycode_for_keysym (recv->id));
1392 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1393 (long int) grab_mask->key_val,
1394 (long int) grab_mask->mod_mask,
1395 grab_mask->pending_add ? '+' : '.',
1396 grab_mask->pending_remove ? '-' : '.',
1397 re_issue_grab ? "re-issue": "");
1402 if (grab_mask->pending_add && grab_mask->pending_remove)
1406 else if (grab_mask->pending_remove)
1409 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1411 XUngrabKey (spi_get_display (),
1413 grab_mask->mod_mask,
1414 gdk_x11_get_default_root_xwindow ());
1418 else if (grab_mask->pending_add || re_issue_grab)
1422 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1424 XGrabKey (spi_get_display (),
1426 grab_mask->mod_mask,
1427 gdk_x11_get_default_root_xwindow (),
1431 XSync (spi_get_display (), False);
1432 update_failed = spi_clear_error_state ();
1433 if (update_failed) {
1434 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1439 grab_mask->pending_add = FALSE;
1440 grab_mask->pending_remove = FALSE;
1444 g_assert (grab_mask->ref_count <= 0);
1446 controller->keygrabs_list = g_list_delete_link (
1447 controller->keygrabs_list, l);
1449 spi_grab_mask_free (grab_mask);
1454 return ! update_failed;
1458 * Implemented GObject::finalize
1461 spi_device_event_controller_object_finalize (GObject *object)
1463 SpiDEController *controller;
1464 DEControllerPrivateData *private;
1465 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1468 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1470 /* disconnect any special listeners, get rid of outstanding keygrabs */
1471 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1473 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1474 if (private->xkb_desc)
1475 XkbFreeKeyboard (private->xkb_desc, 0, True);
1477 spi_device_event_controller_parent_class->finalize (object);
1481 * CORBA Accessibility::DEController::registerKeystrokeListener
1482 * method implementation
1484 static CORBA_boolean
1485 impl_register_keystroke_listener (PortableServer_Servant servant,
1486 const Accessibility_DeviceEventListener l,
1487 const Accessibility_KeySet *keys,
1488 const Accessibility_ControllerEventMask mask,
1489 const Accessibility_EventTypeSeq *type,
1490 const Accessibility_EventListenerMode *mode,
1491 CORBA_Environment *ev)
1493 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1494 bonobo_object_from_servant (servant));
1495 DEControllerKeyListener *dec_listener;
1497 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1498 (void *) l, (unsigned long) mask);
1500 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1501 return spi_controller_register_device_listener (
1502 controller, (DEControllerListener *) dec_listener, ev);
1507 * CORBA Accessibility::DEController::registerDeviceEventListener
1508 * method implementation
1510 static CORBA_boolean
1511 impl_register_device_listener (PortableServer_Servant servant,
1512 const Accessibility_DeviceEventListener l,
1513 const Accessibility_EventTypeSeq *event_types,
1514 CORBA_Environment *ev)
1516 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1517 bonobo_object_from_servant (servant));
1518 DEControllerListener *dec_listener;
1520 dec_listener = spi_dec_listener_new (l, event_types, ev);
1521 return spi_controller_register_device_listener (
1522 controller, (DEControllerListener *) dec_listener, ev);
1526 CORBA_Environment *ev;
1527 DEControllerListener *listener;
1528 } RemoveListenerClosure;
1530 static SpiReEntrantContinue
1531 remove_listener_cb (GList * const *list,
1534 DEControllerListener *listener = (*list)->data;
1535 RemoveListenerClosure *ctx = user_data;
1537 if (CORBA_Object_is_equivalent (ctx->listener->object,
1538 listener->object, ctx->ev))
1540 spi_re_entrant_list_delete_link (list);
1541 spi_dec_listener_free (listener, ctx->ev);
1544 return SPI_RE_ENTRANT_CONTINUE;
1547 static SpiReEntrantContinue
1548 copy_key_listener_cb (GList * const *list,
1551 DEControllerKeyListener *key_listener = (*list)->data;
1552 RemoveListenerClosure *ctx = user_data;
1554 if (CORBA_Object_is_equivalent (ctx->listener->object,
1555 key_listener->listener.object, ctx->ev))
1557 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1558 DEControllerKeyListener *ctx_key_listener =
1559 (DEControllerKeyListener *) ctx->listener;
1560 CORBA_free (ctx_key_listener->keys);
1561 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1564 return SPI_RE_ENTRANT_CONTINUE;
1568 spi_deregister_controller_device_listener (SpiDEController *controller,
1569 DEControllerListener *listener,
1570 CORBA_Environment *ev)
1572 RemoveListenerClosure ctx;
1575 ctx.listener = listener;
1577 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1578 remove_listener_cb, &ctx);
1582 spi_deregister_controller_key_listener (SpiDEController *controller,
1583 DEControllerKeyListener *key_listener,
1584 CORBA_Environment *ev)
1586 RemoveListenerClosure ctx;
1589 ctx.listener = (DEControllerListener *) key_listener;
1591 /* special case, copy keyset from existing controller list entry */
1592 if (key_listener->keys->_length == 0)
1594 spi_re_entrant_list_foreach (&controller->key_listeners,
1595 copy_key_listener_cb, &ctx);
1598 spi_controller_deregister_global_keygrabs (controller, key_listener);
1600 spi_re_entrant_list_foreach (&controller->key_listeners,
1601 remove_listener_cb, &ctx);
1606 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1607 * method implementation
1610 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1611 const Accessibility_DeviceEventListener l,
1612 const Accessibility_KeySet *keys,
1613 const Accessibility_ControllerEventMask mask,
1614 const Accessibility_EventTypeSeq *type,
1615 CORBA_Environment *ev)
1617 DEControllerKeyListener *key_listener;
1618 SpiDEController *controller;
1620 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1622 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1624 #ifdef SPI_DEREGISTER_DEBUG
1625 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1626 (void *) l, (unsigned long) mask->value);
1629 spi_deregister_controller_key_listener (controller, key_listener, ev);
1631 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1635 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1636 * method implementation
1639 impl_deregister_device_listener (PortableServer_Servant servant,
1640 const Accessibility_DeviceEventListener l,
1641 const Accessibility_EventTypeSeq *event_types,
1642 CORBA_Environment *ev)
1644 SpiDEController *controller;
1645 DEControllerListener *listener =
1646 spi_dec_listener_new (l, event_types, ev);
1648 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1650 spi_deregister_controller_device_listener (controller, listener, ev);
1652 spi_dec_listener_free (listener, ev);
1655 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1657 unsigned int retval = 0;
1658 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1659 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1661 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1662 retval = XkbGetSlowKeysDelay (spi_get_display (),
1663 XkbUseCoreKbd, &bounce_delay);
1665 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1667 Status s = XkbGetControls (spi_get_display (),
1668 XkbAllControlsMask, priv->xkb_desc);
1671 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1672 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1677 #ifdef SPI_XKB_DEBUG
1678 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1683 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1685 unsigned int retval = 0;
1686 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1687 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1689 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1690 retval = XkbGetBounceKeysDelay (spi_get_display (),
1691 XkbUseCoreKbd, &bounce_delay);
1693 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1695 Status s = XkbGetControls (spi_get_display (),
1696 XkbAllControlsMask, priv->xkb_desc);
1699 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1700 retval = priv->xkb_desc->ctrls->debounce_delay;
1705 #ifdef SPI_XKB_DEBUG
1706 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1712 dec_synth_keycode_press (SpiDEController *controller,
1713 unsigned int keycode)
1715 unsigned int time = CurrentTime;
1716 unsigned int bounce_delay;
1717 unsigned int elapsed_msec;
1719 DEControllerPrivateData *priv =
1720 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1721 spi_dec_private_quark);
1722 if (keycode == priv->last_release_keycode)
1724 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
1727 gettimeofday (&tv, NULL);
1729 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1730 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1731 #ifdef SPI_XKB_DEBUG
1732 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1733 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
1735 #ifdef THIS_IS_BROKEN
1736 if (elapsed_msec < bounce_delay)
1737 time = bounce_delay - elapsed_msec + 1;
1739 time = bounce_delay + 10;
1740 /* fudge for broken XTest */
1742 #ifdef SPI_XKB_DEBUG
1743 fprintf (stderr, "waiting %d ms\n", time);
1747 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1748 priv->last_press_keycode = keycode;
1749 XSync (spi_get_display (), False);
1750 gettimeofday (&priv->last_press_time, NULL);
1755 dec_synth_keycode_release (SpiDEController *controller,
1756 unsigned int keycode)
1758 unsigned int time = CurrentTime;
1759 unsigned int slow_delay;
1760 unsigned int elapsed_msec;
1762 DEControllerPrivateData *priv =
1763 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1764 spi_dec_private_quark);
1765 if (keycode == priv->last_press_keycode)
1767 slow_delay = dec_xkb_get_slowkeys_delay (controller);
1770 gettimeofday (&tv, NULL);
1772 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1773 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1774 #ifdef SPI_XKB_DEBUG
1775 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1776 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
1778 #ifdef THIS_IS_BROKEN_DUNNO_WHY
1779 if (elapsed_msec < slow_delay)
1780 time = slow_delay - elapsed_msec + 1;
1782 time = slow_delay + 10;
1783 /* our XTest seems broken, we have to add slop as above */
1785 #ifdef SPI_XKB_DEBUG
1786 fprintf (stderr, "waiting %d ms\n", time);
1790 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1791 priv->last_release_keycode = keycode;
1792 XSync (spi_get_display (), False);
1793 gettimeofday (&priv->last_release_time, NULL);
1798 * CORBA Accessibility::DEController::registerKeystrokeListener
1799 * method implementation
1802 impl_generate_keyboard_event (PortableServer_Servant servant,
1803 const CORBA_long keycode,
1804 const CORBA_char *keystring,
1805 const Accessibility_KeySynthType synth_type,
1806 CORBA_Environment *ev)
1808 SpiDEController *controller =
1809 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1810 long key_synth_code;
1814 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1815 (long) keycode, (int) synth_type);
1817 /* TODO: hide/wrap/remove X dependency */
1820 * TODO: when initializing, query for XTest extension before using,
1821 * and fall back to XSendEvent() if XTest is not available.
1824 /* TODO: implement keystring mode also */
1825 gdk_error_trap_push ();
1826 key_synth_code = keycode;
1830 case Accessibility_KEY_PRESS:
1831 dec_synth_keycode_press (controller, keycode);
1833 case Accessibility_KEY_PRESSRELEASE:
1834 dec_synth_keycode_press (controller, keycode);
1835 case Accessibility_KEY_RELEASE:
1836 dec_synth_keycode_release (controller, keycode);
1838 case Accessibility_KEY_SYM:
1839 #ifdef SPI_XKB_DEBUG
1840 fprintf (stderr, "KeySym synthesis\n");
1842 key_synth_code = keycode_for_keysym (keycode);
1843 dec_synth_keycode_press (controller, key_synth_code);
1844 dec_synth_keycode_release (controller, key_synth_code);
1846 case Accessibility_KEY_STRING:
1847 fprintf (stderr, "Not yet implemented\n");
1850 if (gdk_error_trap_pop ())
1852 DBG (-1, g_warning ("Error emitting keystroke"));
1854 if (synth_type == Accessibility_KEY_SYM) {
1858 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
1860 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
1862 spi_dec_clear_unlatch_pending (controller);
1866 /* Accessibility::DEController::generateMouseEvent */
1868 impl_generate_mouse_event (PortableServer_Servant servant,
1871 const CORBA_char *eventName,
1872 CORBA_Environment *ev)
1875 gboolean error = FALSE;
1876 Display *display = spi_get_display ();
1878 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1879 eventName, (long int) x, (long int) y);
1881 switch (eventName[0])
1884 switch (eventName[1])
1886 /* TODO: check number of buttons before parsing */
1907 if (x != -1 && y != -1)
1909 XTestFakeMotionEvent (display, DefaultScreen (display),
1912 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
1913 if (eventName[2] == 'c')
1914 XTestFakeButtonEvent (display, button, FALSE, 1);
1915 else if (eventName[2] == 'd')
1917 XTestFakeButtonEvent (display, button, FALSE, 1);
1918 XTestFakeButtonEvent (display, button, TRUE, 2);
1919 XTestFakeButtonEvent (display, button, FALSE, 3);
1923 case 'r': /* relative motion */
1924 XTestFakeRelativeMotionEvent (display, x, y, 0);
1926 case 'a': /* absolute motion */
1927 XTestFakeMotionEvent (display, DefaultScreen (display),
1933 /* Accessibility::DEController::notifyListenersSync */
1934 static CORBA_boolean
1935 impl_notify_listeners_sync (PortableServer_Servant servant,
1936 const Accessibility_DeviceEvent *event,
1937 CORBA_Environment *ev)
1939 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1940 bonobo_object_from_servant (servant));
1942 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1943 controller, (int) event->id);
1945 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
1946 CORBA_TRUE : CORBA_FALSE;
1949 /* Accessibility::DEController::notifyListenersAsync */
1951 impl_notify_listeners_async (PortableServer_Servant servant,
1952 const Accessibility_DeviceEvent *event,
1953 CORBA_Environment *ev)
1955 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1956 bonobo_object_from_servant (servant));
1958 fprintf (stderr, "notifying listeners asynchronously\n");
1960 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
1964 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1966 GObjectClass * object_class = (GObjectClass *) klass;
1967 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
1969 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1971 object_class->finalize = spi_device_event_controller_object_finalize;
1973 epv->registerKeystrokeListener = impl_register_keystroke_listener;
1974 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
1975 epv->registerDeviceEventListener = impl_register_device_listener;
1976 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
1977 epv->generateKeyboardEvent = impl_generate_keyboard_event;
1978 epv->generateMouseEvent = impl_generate_mouse_event;
1979 epv->notifyListenersSync = impl_notify_listeners_sync;
1980 epv->notifyListenersAsync = impl_notify_listeners_async;
1982 if (!spi_dec_private_quark)
1983 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
1987 spi_device_event_controller_init (SpiDEController *device_event_controller)
1989 DEControllerPrivateData *private;
1990 device_event_controller->key_listeners = NULL;
1991 device_event_controller->mouse_listeners = NULL;
1992 device_event_controller->keygrabs_list = NULL;
1994 private = g_new0 (DEControllerPrivateData, 1);
1995 gettimeofday (&private->last_press_time, NULL);
1996 gettimeofday (&private->last_release_time, NULL);
1997 g_object_set_qdata (G_OBJECT (device_event_controller),
1998 spi_dec_private_quark,
2000 spi_controller_register_with_devices (device_event_controller);
2004 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2005 const XEvent *event)
2007 gboolean is_consumed = FALSE;
2008 CORBA_Environment ev;
2009 Accessibility_DeviceEvent key_event;
2011 g_assert (event->type == KeyPress || event->type == KeyRelease);
2013 CORBA_exception_init (&ev);
2015 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2017 spi_controller_update_key_grabs (controller, &key_event);
2019 /* relay to listeners, and decide whether to consume it or not */
2020 is_consumed = spi_controller_notify_keylisteners (
2021 controller, &key_event, CORBA_TRUE, &ev);
2025 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
2029 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
2034 spi_device_event_controller_new (SpiRegistry *registry)
2036 SpiDEController *retval = g_object_new (
2037 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2039 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2040 BONOBO_OBJECT (registry)));
2042 spi_dec_init_mouse_listener (registry);
2043 /* TODO: kill mouse listener on finalize */
2047 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2048 Accessibility_DeviceEventController,
2050 spi_device_event_controller);