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 keycode_for_keysym (long keysym)
145 return XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
148 static DEControllerGrabMask *
149 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
151 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
153 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
155 clone->ref_count = 1;
156 clone->pending_add = TRUE;
157 clone->pending_remove = FALSE;
163 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
169 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
171 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
172 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
180 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
185 spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
187 DEControllerPrivateData *priv =
188 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
190 if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
191 priv->xkb_latch_mask);
193 priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
197 spi_dec_clear_unlatch_pending (SpiDEController *controller)
199 DEControllerPrivateData *priv =
200 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
201 priv->xkb_latch_mask = 0;
205 spi_dec_button_update_and_emit (SpiDEController *controller,
208 CORBA_Environment ev;
209 Accessibility_Event e;
210 Accessibility_DeviceEvent mouse_e;
211 gchar event_name[24];
212 gboolean is_consumed = FALSE;
214 if ((mask_return & mouse_button_mask) !=
215 (mouse_mask_state & mouse_button_mask))
217 int button_number = 0;
218 gboolean is_down = False;
220 if (!(mask_return & Button1Mask) &&
221 (mouse_mask_state & Button1Mask))
223 mouse_mask_state &= ~Button1Mask;
226 else if ((mask_return & Button1Mask) &&
227 !(mouse_mask_state & Button1Mask))
229 mouse_mask_state |= Button1Mask;
233 else if (!(mask_return & Button2Mask) &&
234 (mouse_mask_state & Button2Mask))
236 mouse_mask_state &= ~Button2Mask;
239 else if ((mask_return & Button2Mask) &&
240 !(mouse_mask_state & Button2Mask))
242 mouse_mask_state |= Button2Mask;
246 else if (!(mask_return & Button3Mask) &&
247 (mouse_mask_state & Button3Mask))
249 mouse_mask_state &= ~Button3Mask;
252 else if ((mask_return & Button3Mask) &&
253 !(mouse_mask_state & Button3Mask))
255 mouse_mask_state |= Button3Mask;
259 else if (!(mask_return & Button4Mask) &&
260 (mouse_mask_state & Button4Mask))
262 mouse_mask_state &= ~Button4Mask;
265 else if ((mask_return & Button4Mask) &&
266 !(mouse_mask_state & Button4Mask))
268 mouse_mask_state |= Button4Mask;
272 else if (!(mask_return & Button5Mask) &&
273 (mouse_mask_state & Button5Mask))
275 mouse_mask_state &= ~Button5Mask;
278 else if ((mask_return & Button5Mask) &&
279 !(mouse_mask_state & Button5Mask))
281 mouse_mask_state |= Button5Mask;
287 fprintf (stderr, "Button %d %s\n",
288 button_number, (is_down) ? "Pressed" : "Released");
290 snprintf (event_name, 22, "mouse:button:%d%c", button_number,
291 (is_down) ? 'p' : 'r');
292 /* TODO: distinguish between physical and
295 mouse_e.type = (is_down) ?
296 Accessibility_BUTTON_PRESSED_EVENT :
297 Accessibility_BUTTON_RELEASED_EVENT;
298 mouse_e.id = button_number;
299 mouse_e.hw_code = button_number;
300 mouse_e.modifiers = (CORBA_unsigned_short) mouse_mask_state;
301 mouse_e.timestamp = 0;
302 mouse_e.event_string = "";
303 mouse_e.is_text = CORBA_FALSE;
305 spi_controller_notify_mouselisteners (controller,
309 e.source = BONOBO_OBJREF (controller->registry->desktop);
310 e.detail1 = last_mouse_pos->x;
311 e.detail2 = last_mouse_pos->y;
312 spi_init_any_nil (&e.any_data);
313 CORBA_exception_init (&ev);
316 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
321 spi_dec_set_unlatch_pending (controller, mask_return);
333 spi_dec_mouse_check (SpiDEController *controller,
334 int *x, int *y, gboolean *moved)
336 Accessibility_Event e;
337 CORBA_Environment ev;
338 int win_x_return,win_y_return;
339 unsigned int mask_return;
340 Window root_return, child_return;
341 Display *display = spi_get_display ();
344 XQueryPointer(display, DefaultRootWindow (display),
345 &root_return, &child_return,
347 &win_x_return, &win_y_return, &mask_return);
349 * Since many clients grab the pointer, and X goes an automatic
350 * pointer grab on mouse-down, we often must detect mouse button events
351 * by polling rather than via a button grab.
352 * The while loop (rather than if) is used since it's possible that
353 * multiple buttons have changed state since we last checked.
355 if (mask_return != mouse_mask_state)
357 while (spi_dec_button_update_and_emit (controller, mask_return));
360 if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
362 e.type = "mouse:abs";
363 e.source = BONOBO_OBJREF (controller->registry->desktop);
366 spi_init_any_nil (&e.any_data);
367 CORBA_exception_init (&ev);
368 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
371 e.type = "mouse:rel";
372 e.source = BONOBO_OBJREF (controller->registry->desktop);
373 e.detail1 = *x - last_mouse_pos->x;
374 e.detail2 = *y - last_mouse_pos->y;
375 spi_init_any_nil (&e.any_data);
376 CORBA_exception_init (&ev);
377 last_mouse_pos->x = *x;
378 last_mouse_pos->y = *y;
379 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
393 spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
396 Accessibility_Event e;
397 CORBA_Environment ev;
400 fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
401 prev_mask, current_mask);
404 /* set bits for the virtual modifiers like NUMLOCK */
405 if (prev_mask & _numlock_physical_mask)
406 prev_mask |= SPI_KEYMASK_NUMLOCK;
407 if (current_mask & _numlock_physical_mask)
408 current_mask |= SPI_KEYMASK_NUMLOCK;
410 e.type = "keyboard:modifiers";
411 e.source = BONOBO_OBJREF (controller->registry->desktop);
412 e.detail1 = prev_mask & key_modifier_mask;
413 e.detail2 = current_mask & key_modifier_mask;
414 spi_init_any_nil (&e.any_data);
415 CORBA_exception_init (&ev);
416 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
422 spi_dec_poll_mouse_moved (gpointer data)
424 SpiRegistry *registry = SPI_REGISTRY (data);
425 SpiDEController *controller = registry->de_controller;
430 mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
432 if ((mask_return & key_modifier_mask) !=
433 (mouse_mask_state & key_modifier_mask))
435 spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
436 mouse_mask_state = mask_return;
443 spi_dec_poll_mouse_idle (gpointer data)
445 if (! spi_dec_poll_mouse_moved (data))
449 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
455 spi_dec_poll_mouse_moving (gpointer data)
457 if (spi_dec_poll_mouse_moved (data))
461 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
466 #ifdef WE_NEED_UGRAB_MOUSE
468 spi_dec_ungrab_mouse (gpointer data)
470 Display *display = spi_get_display ();
473 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
474 XDefaultRootWindow (spi_get_display ()));
481 spi_dec_init_mouse_listener (SpiRegistry *registry)
483 Display *display = spi_get_display ();
484 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
488 if (XGrabButton (display, AnyButton, AnyModifier,
489 gdk_x11_get_default_root_xwindow (),
490 True, ButtonPressMask | ButtonReleaseMask,
491 GrabModeSync, GrabModeAsync, None, None) != Success)
492 fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
493 XSync (display, False);
495 fprintf (stderr, "mouse buttons grabbed\n");
501 * Eventually we can use this to make the marshalling of mask types
502 * more sane, but for now we just use this to detect
503 * the use of 'virtual' masks such as Mumlock and convert them to
504 * system-specific mask values (i.e. ModMask).
507 static Accessibility_ControllerEventMask
508 spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
510 DEControllerPrivateData *priv;
512 if (mask == SPI_KEYMASK_NUMLOCK) {
513 mask = _numlock_physical_mask;
518 static DEControllerKeyListener *
519 spi_dec_key_listener_new (CORBA_Object l,
520 const Accessibility_KeySet *keys,
521 const Accessibility_ControllerEventMask mask,
522 const Accessibility_EventTypeSeq *typeseq,
523 const Accessibility_EventListenerMode *mode,
524 CORBA_Environment *ev)
526 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
527 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
528 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
529 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
530 key_listener->mask = spi_dec_translate_mask (mask);
531 key_listener->listener.typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
533 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
535 key_listener->mode = NULL;
538 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
539 (unsigned int) key_listener->mask,
540 (int) (mode ? mode->global : 0),
541 (void *) key_listener->keys,
542 (int) (key_listener->keys ? key_listener->keys->_length : 0));
548 static DEControllerListener *
549 spi_dec_listener_new (CORBA_Object l,
550 const Accessibility_EventTypeSeq *typeseq,
551 CORBA_Environment *ev)
553 DEControllerListener *listener = g_new0 (DEControllerListener, 1);
554 listener->object = bonobo_object_dup_ref (l, ev);
555 listener->type = SPI_DEVICE_TYPE_MOUSE;
556 listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_EventTypeSeq);
560 static DEControllerListener *
561 spi_listener_clone (DEControllerListener *listener, CORBA_Environment *ev)
563 DEControllerListener *clone = g_new0 (DEControllerListener, 1);
565 CORBA_Object_duplicate (listener->object, ev);
566 clone->type = listener->type;
567 clone->typeseq = ORBit_copy_value (listener->typeseq, TC_Accessibility_EventTypeSeq);
571 static DEControllerKeyListener *
572 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
574 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
575 clone->listener.object =
576 CORBA_Object_duplicate (key_listener->listener.object, ev);
577 clone->listener.type = SPI_DEVICE_TYPE_KBD;
578 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
579 clone->mask = key_listener->mask;
580 clone->listener.typeseq = ORBit_copy_value (key_listener->listener.typeseq, TC_Accessibility_EventTypeSeq);
581 if (key_listener->mode)
582 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
589 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
591 CORBA_free (key_listener->listener.typeseq);
592 CORBA_free (key_listener->keys);
593 g_free (key_listener);
597 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
599 CORBA_Object_release (clone->listener.object, ev);
600 spi_key_listener_data_free (clone, ev);
604 spi_listener_clone_free (DEControllerListener *clone, CORBA_Environment *ev)
606 CORBA_Object_release (clone->object, ev);
607 CORBA_free (clone->typeseq);
612 spi_dec_listener_free (DEControllerListener *listener,
613 CORBA_Environment *ev)
615 bonobo_object_release_unref (listener->object, ev);
616 if (listener->type == SPI_DEVICE_TYPE_KBD)
617 spi_key_listener_data_free ((DEControllerKeyListener *) listener, ev);
621 _register_keygrab (SpiDEController *controller,
622 DEControllerGrabMask *grab_mask)
626 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
627 spi_grab_mask_compare_values);
630 DEControllerGrabMask *cur_mask = l->data;
632 cur_mask->ref_count++;
633 if (cur_mask->pending_remove)
635 cur_mask->pending_remove = FALSE;
640 controller->keygrabs_list =
641 g_list_prepend (controller->keygrabs_list,
642 spi_grab_mask_clone (grab_mask));
647 _deregister_keygrab (SpiDEController *controller,
648 DEControllerGrabMask *grab_mask)
652 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
653 spi_grab_mask_compare_values);
657 DEControllerGrabMask *cur_mask = l->data;
659 cur_mask->ref_count--;
660 if (cur_mask->ref_count <= 0)
662 cur_mask->pending_remove = TRUE;
667 DBG (1, g_warning ("De-registering non-existant grab"));
672 handle_keygrab (SpiDEController *controller,
673 DEControllerKeyListener *key_listener,
674 void (*process_cb) (SpiDEController *controller,
675 DEControllerGrabMask *grab_mask))
677 DEControllerGrabMask grab_mask = { 0 };
679 grab_mask.mod_mask = key_listener->mask;
680 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
682 grab_mask.key_val = AnyKey;
684 fprintf (stderr, "AnyKey grab!");
686 process_cb (controller, &grab_mask);
692 for (i = 0; i < key_listener->keys->_length; ++i)
694 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
695 long int key_val = keydef.keysym;
696 /* X Grabs require keycodes, not keysyms */
697 if (keydef.keystring && keydef.keystring[0])
699 key_val = XStringToKeysym(keydef.keystring);
703 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
707 key_val = keydef.keycode;
709 grab_mask.key_val = key_val;
710 process_cb (controller, &grab_mask);
716 spi_controller_register_global_keygrabs (SpiDEController *controller,
717 DEControllerKeyListener *key_listener)
719 handle_keygrab (controller, key_listener, _register_keygrab);
720 return spi_controller_update_key_grabs (controller, NULL);
724 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
725 DEControllerKeyListener *key_listener)
727 handle_keygrab (controller, key_listener, _deregister_keygrab);
728 spi_controller_update_key_grabs (controller, NULL);
732 spi_controller_register_device_listener (SpiDEController *controller,
733 DEControllerListener *listener,
734 CORBA_Environment *ev)
736 DEControllerKeyListener *key_listener;
738 switch (listener->type) {
739 case SPI_DEVICE_TYPE_KBD:
740 key_listener = (DEControllerKeyListener *) listener;
742 controller->key_listeners = g_list_prepend (controller->key_listeners,
744 if (key_listener->mode->global)
746 return spi_controller_register_global_keygrabs (controller, key_listener);
751 case SPI_DEVICE_TYPE_MOUSE:
752 controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
755 DBG (1, g_warning ("listener registration for unknown device type.\n"));
762 spi_controller_notify_mouselisteners (SpiDEController *controller,
763 const Accessibility_DeviceEvent *event,
764 CORBA_Environment *ev)
767 GSList *notify = NULL, *l2;
768 GList **listeners = &controller->mouse_listeners;
769 gboolean is_consumed;
776 for (l = *listeners; l; l = l->next)
778 DEControllerListener *listener = l->data;
780 if (spi_eventtype_seq_contains_event (listener->typeseq, event))
782 Accessibility_DeviceEventListener ls = listener->object;
784 if (ls != CORBA_OBJECT_NIL)
786 /* we clone (don't dup) the listener, to avoid refcount inc. */
787 notify = g_slist_prepend (notify,
788 spi_listener_clone (listener, ev));
793 #ifdef SPI_KEYEVENT_DEBUG
796 g_print ("no match for event\n");
801 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
803 DEControllerListener *listener = l2->data;
804 Accessibility_DeviceEventListener ls = listener->object;
806 CORBA_exception_init (ev);
807 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, event, ev);
811 DBG (2, g_warning ("error notifying listener, removing it\n"));
812 spi_deregister_controller_device_listener (controller, listener,
814 CORBA_exception_free (ev);
817 spi_listener_clone_free ((DEControllerListener *) l2->data, ev);
820 for (; l2; l2 = l2->next)
822 DEControllerListener *listener = l2->data;
823 spi_listener_clone_free (listener, ev);
824 /* clone doesn't have its own ref, so don't use spi_device_listener_free */
827 g_slist_free (notify);
830 if (is_consumed) g_message ("consumed\n");
836 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
839 Accessibility_Event e;
840 Accessibility_DeviceEvent mouse_e;
841 CORBA_Environment ev;
842 gchar event_name[24];
843 gboolean is_consumed = FALSE;
844 gboolean xkb_mod_unlatch_occurred;
845 XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
847 int button = xbutton_event->button;
849 unsigned int mouse_button_state = xbutton_event->state;
854 mouse_button_state |= Button1Mask;
857 mouse_button_state |= Button2Mask;
860 mouse_button_state |= Button3Mask;
863 mouse_button_state |= Button4Mask;
866 mouse_button_state |= Button5Mask;
870 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
871 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
874 fprintf (stderr, "mouse button %d %s (%x)\n",
875 xbutton_event->button,
876 (xevent->type == ButtonPress) ? "Press" : "Release",
879 snprintf (event_name, 22, "mouse:button:%d%c", button,
880 (xevent->type == ButtonPress) ? 'p' : 'r');
882 /* TODO: distinguish between physical and logical buttons */
883 mouse_e.type = (xevent->type == ButtonPress) ?
884 Accessibility_BUTTON_PRESSED_EVENT :
885 Accessibility_BUTTON_RELEASED_EVENT;
887 mouse_e.hw_code = button;
888 mouse_e.modifiers = (CORBA_unsigned_short) xbutton_event->state;
889 mouse_e.timestamp = (CORBA_unsigned_long) xbutton_event->time;
890 mouse_e.event_string = "";
891 mouse_e.is_text = CORBA_FALSE;
892 if ((mouse_button_state & mouse_button_mask) !=
893 (mouse_mask_state & mouse_button_mask))
895 if ((mouse_mask_state & key_modifier_mask) !=
896 (mouse_button_state & key_modifier_mask))
897 spi_dec_emit_modifier_event (controller,
898 mouse_mask_state, mouse_button_state);
899 mouse_mask_state = mouse_button_state;
901 spi_controller_notify_mouselisteners (controller, &mouse_e, &ev);
902 e.type = CORBA_string_dup (event_name);
903 e.source = BONOBO_OBJREF (controller->registry->desktop);
904 e.detail1 = last_mouse_pos->x;
905 e.detail2 = last_mouse_pos->y;
906 spi_init_any_nil (&e.any_data);
907 CORBA_exception_init (&ev);
909 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
914 xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
915 xevent->type == ButtonRelease);
917 /* if client wants to consume this event, and XKB latch state was
918 * unset by this button event, we reset it
920 if (is_consumed && xkb_mod_unlatch_occurred)
921 spi_dec_set_unlatch_pending (controller, mouse_mask_state);
923 XAllowEvents (spi_get_display (),
924 (is_consumed) ? SyncPointer : ReplayPointer,
928 static GdkFilterReturn
929 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
931 XEvent *xevent = gdk_xevent;
932 SpiDEController *controller;
933 DEControllerPrivateData *priv;
934 Display *display = spi_get_display ();
935 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
936 priv = (DEControllerPrivateData *)
937 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
939 if (xevent->type == KeyPress || xevent->type == KeyRelease)
941 spi_device_event_controller_forward_key_event (controller, xevent);
942 return GDK_FILTER_CONTINUE;
944 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
946 spi_device_event_controller_forward_mouse_event (controller, xevent);
948 if (xevent->type == priv->xkb_base_event_code)
950 XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
951 /* ugly but probably necessary...*/
952 XSynchronize (spi_get_display (), TRUE);
954 if (xkb_ev->xkb_type == XkbStateNotify)
956 XkbStateNotifyEvent *xkb_snev =
957 (XkbStateNotifyEvent *) xkb_ev;
958 /* check the mouse, to catch mouse events grabbed by
959 * another client; in case we should revert this XKB delatch
961 if (!priv->pending_xkb_mod_relatch_mask)
965 spi_dec_mouse_check (controller, &x, &y, &moved);
967 /* we check again, since the previous call may have
969 if (priv->pending_xkb_mod_relatch_mask)
971 unsigned int feedback_mask;
973 fprintf (stderr, "relatching %x\n",
974 priv->pending_xkb_mod_relatch_mask);
976 /* temporarily turn off the latch bell, if it's on */
977 XkbGetControls (display,
978 XkbAccessXFeedbackMask,
980 feedback_mask = priv->xkb_desc->ctrls->ax_options;
981 if (feedback_mask & XkbAX_StickyKeysFBMask)
983 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
985 priv->xkb_desc->ctrls->ax_options
986 &= ~(XkbAX_StickyKeysFBMask);
987 XkbChangeControls (display, priv->xkb_desc, &changes);
989 /* TODO: account for lock as well as latch */
990 XkbLatchModifiers (display,
992 priv->pending_xkb_mod_relatch_mask,
993 priv->pending_xkb_mod_relatch_mask);
994 if (feedback_mask & XkbAX_StickyKeysFBMask)
996 XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
998 priv->xkb_desc->ctrls->ax_options = feedback_mask;
999 XkbChangeControls (display, priv->xkb_desc, &changes);
1001 #ifdef SPI_XKB_DEBUG
1002 fprintf (stderr, "relatched %x\n",
1003 priv->pending_xkb_mod_relatch_mask);
1005 priv->pending_xkb_mod_relatch_mask = 0;
1009 priv->xkb_latch_mask = xkb_snev->latched_mods;
1013 DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
1014 XSynchronize (spi_get_display (), FALSE);
1017 return GDK_FILTER_CONTINUE;
1021 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
1023 if (error->error_code == BadAccess)
1025 g_message ("Could not complete key grab: grab already in use.\n");
1026 spi_error_code = BadAccess;
1031 return (*x_default_error_handler) (display, error);
1036 spi_controller_register_with_devices (SpiDEController *controller)
1038 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1039 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1040 /* FIXME: should check for extension first! */
1041 XTestGrabControl (spi_get_display (), True);
1043 /* calls to device-specific implementations and routines go here */
1044 /* register with: keyboard hardware code handler */
1045 /* register with: (translated) keystroke handler */
1047 priv->have_xkb = XkbQueryExtension (spi_get_display (),
1048 &priv->xkb_major_extension_opcode,
1049 &priv->xkb_base_event_code,
1050 &priv->xkb_base_error_code, NULL, NULL);
1053 priv->xkb_desc = XkbGetMap (spi_get_display (), 0, XkbUseCoreKbd);
1054 XkbSelectEvents (spi_get_display (),
1056 XkbStateNotifyMask, XkbStateNotifyMask);
1057 _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
1061 gdk_window_add_filter (NULL, global_filter_fn, controller);
1063 gdk_window_set_events (gdk_get_default_root_window (),
1064 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
1066 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
1070 spi_key_set_contains_key (Accessibility_KeySet *key_set,
1071 const Accessibility_DeviceEvent *key_event)
1078 g_print ("null key set!");
1082 len = key_set->_length;
1084 if (len == 0) /* special case, means "all keys/any key" */
1086 g_print ("anykey\n");
1090 for (i = 0; i < len; ++i)
1092 #ifdef SPI_KEYEVENT_DEBUG
1093 g_print ("key_set[%d] = %d; key_event %d, code %d, string %s\n",
1094 i, (int) key_set->_buffer[i].keycode,
1095 (int) key_event->id, (int) key_event->hw_code,
1096 key_event->event_string);
1098 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
1102 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
1106 if (key_event->event_string && key_event->event_string[0] &&
1107 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
1117 spi_eventtype_seq_contains_event (Accessibility_EventTypeSeq *type_seq,
1118 const Accessibility_DeviceEvent *event)
1126 g_print ("null type seq!");
1130 len = type_seq->_length;
1132 if (len == 0) /* special case, means "all events/any event" */
1137 for (i = 0; i < len; ++i)
1140 g_print ("type_seq[%d] = %d; event type = %d\n", i,
1141 (int) type_seq->_buffer[i], (int) event->type);
1143 if (type_seq->_buffer[i] == (CORBA_long) event->type)
1153 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1154 DEControllerKeyListener *listener,
1155 CORBA_boolean is_system_global)
1157 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFF)) &&
1158 spi_key_set_contains_key (listener->keys, key_event) &&
1159 spi_eventtype_seq_contains_event (listener->listener.typeseq, key_event) &&
1160 (is_system_global == listener->mode->global))
1171 spi_controller_notify_keylisteners (SpiDEController *controller,
1172 const Accessibility_DeviceEvent *key_event,
1173 CORBA_boolean is_system_global,
1174 CORBA_Environment *ev)
1177 GSList *notify = NULL, *l2;
1178 GList **key_listeners = &controller->key_listeners;
1179 gboolean is_consumed;
1186 for (l = *key_listeners; l; l = l->next)
1188 DEControllerKeyListener *key_listener = l->data;
1190 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1192 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1194 if (ls != CORBA_OBJECT_NIL)
1196 /* we clone (don't dup) the listener, to avoid refcount inc. */
1197 notify = g_slist_prepend (notify,
1198 spi_key_listener_clone (key_listener, ev));
1203 #ifdef SPI_KEYEVENT_DEBUG
1206 g_print ("no match for event\n");
1210 is_consumed = FALSE;
1211 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1213 DEControllerKeyListener *key_listener = l2->data;
1214 Accessibility_DeviceEventListener ls = key_listener->listener.object;
1216 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
1220 is_consumed = FALSE;
1221 spi_deregister_controller_key_listener (controller, key_listener,
1223 CORBA_exception_free (ev);
1226 spi_key_listener_clone_free (key_listener, ev);
1229 for (; l2; l2 = l2->next)
1231 DEControllerKeyListener *key_listener = l2->data;
1232 spi_key_listener_clone_free (key_listener, ev);
1233 /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1236 g_slist_free (notify);
1239 if (is_consumed) g_message ("consumed\n");
1245 spi_clear_error_state ()
1247 gboolean retval = spi_error_code != 0;
1252 static Accessibility_DeviceEvent
1253 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
1255 Accessibility_DeviceEvent key_event;
1257 const int cbuf_bytes = 20;
1258 char cbuf [cbuf_bytes+1];
1261 nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
1262 key_event.id = (CORBA_long)(keysym);
1263 key_event.hw_code = (CORBA_short) x_key_event->keycode;
1264 if (((XEvent *) x_key_event)->type == KeyPress)
1266 key_event.type = Accessibility_KEY_PRESSED_EVENT;
1270 key_event.type = Accessibility_KEY_RELEASED_EVENT;
1272 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
1273 key_event.is_text = CORBA_FALSE;
1277 key_event.event_string = CORBA_string_dup ("space");
1280 key_event.event_string = CORBA_string_dup ("Tab");
1283 key_event.event_string = CORBA_string_dup ("Backspace");
1286 key_event.event_string = CORBA_string_dup ("Return");
1289 key_event.event_string = CORBA_string_dup ("Home");
1292 key_event.event_string = CORBA_string_dup ("Page_Down");
1295 key_event.event_string = CORBA_string_dup ("Page_Up");
1298 key_event.event_string = CORBA_string_dup ("F1");
1301 key_event.event_string = CORBA_string_dup ("F2");
1304 key_event.event_string = CORBA_string_dup ("F3");
1307 key_event.event_string = CORBA_string_dup ("F4");
1310 key_event.event_string = CORBA_string_dup ("F5");
1313 key_event.event_string = CORBA_string_dup ("F6");
1316 key_event.event_string = CORBA_string_dup ("F7");
1319 key_event.event_string = CORBA_string_dup ("F8");
1322 key_event.event_string = CORBA_string_dup ("F9");
1325 key_event.event_string = CORBA_string_dup ("F10");
1328 key_event.event_string = CORBA_string_dup ("F11");
1331 key_event.event_string = CORBA_string_dup ("F12");
1334 key_event.event_string = CORBA_string_dup ("End");
1337 key_event.event_string = CORBA_string_dup ("Escape");
1340 key_event.event_string = CORBA_string_dup ("Up");
1343 key_event.event_string = CORBA_string_dup ("Down");
1346 key_event.event_string = CORBA_string_dup ("Left");
1349 key_event.event_string = CORBA_string_dup ("Right");
1355 cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
1356 key_event.event_string = CORBA_string_dup (cbuf);
1357 c = g_utf8_get_char_validated (cbuf, nbytes);
1358 if ((c > 0) && g_unichar_isprint (c))
1360 key_event.is_text = CORBA_TRUE;
1361 /* incorrect for some composed chars? */
1366 key_event.event_string = CORBA_string_dup ("");
1370 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
1371 #ifdef SPI_KEYEVENT_DEBUG
1373 "Key %lu pressed (%c), modifiers %d; string=%s [%x] %s\n",
1374 (unsigned long) keysym,
1375 keysym ? (int) keysym : '*',
1376 (int) x_key_event->state,
1377 key_event.event_string,
1378 key_event.event_string[0],
1379 (key_event.is_text == CORBA_TRUE) ? "(text)" : "(not text)");
1382 fprintf (stderr, "%s%c",
1383 (x_key_event->state & Mod1Mask)?"Alt-":"",
1384 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
1385 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
1386 #endif /* SPI_DEBUG */
1391 spi_controller_update_key_grabs (SpiDEController *controller,
1392 Accessibility_DeviceEvent *recv)
1395 gboolean update_failed = FALSE;
1397 g_return_val_if_fail (controller != NULL, FALSE);
1400 * masks known to work with default RH 7.1+:
1401 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1402 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1403 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1404 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1406 * ControlMask grabs are broken, must be in use already
1408 for (l = controller->keygrabs_list; l; l = next)
1411 gboolean re_issue_grab;
1412 DEControllerGrabMask *grab_mask = l->data;
1416 re_issue_grab = recv &&
1417 (recv->modifiers & grab_mask->mod_mask) &&
1418 (grab_mask->key_val == keycode_for_keysym (recv->id));
1421 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1422 (long int) grab_mask->key_val,
1423 (long int) grab_mask->mod_mask,
1424 grab_mask->pending_add ? '+' : '.',
1425 grab_mask->pending_remove ? '-' : '.',
1426 re_issue_grab ? "re-issue": "");
1431 if (grab_mask->pending_add && grab_mask->pending_remove)
1435 else if (grab_mask->pending_remove)
1438 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1440 XUngrabKey (spi_get_display (),
1442 grab_mask->mod_mask,
1443 gdk_x11_get_default_root_xwindow ());
1447 else if (grab_mask->pending_add || re_issue_grab)
1451 fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1453 XGrabKey (spi_get_display (),
1455 grab_mask->mod_mask,
1456 gdk_x11_get_default_root_xwindow (),
1460 XSync (spi_get_display (), False);
1461 update_failed = spi_clear_error_state ();
1462 if (update_failed) {
1463 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1468 grab_mask->pending_add = FALSE;
1469 grab_mask->pending_remove = FALSE;
1473 g_assert (grab_mask->ref_count <= 0);
1475 controller->keygrabs_list = g_list_delete_link (
1476 controller->keygrabs_list, l);
1478 spi_grab_mask_free (grab_mask);
1483 return ! update_failed;
1487 * Implemented GObject::finalize
1490 spi_device_event_controller_object_finalize (GObject *object)
1492 SpiDEController *controller;
1493 DEControllerPrivateData *private;
1494 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1497 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1499 /* disconnect any special listeners, get rid of outstanding keygrabs */
1500 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1502 private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
1503 if (private->xkb_desc)
1504 XkbFreeKeyboard (private->xkb_desc, 0, True);
1506 spi_device_event_controller_parent_class->finalize (object);
1510 * CORBA Accessibility::DEController::registerKeystrokeListener
1511 * method implementation
1513 static CORBA_boolean
1514 impl_register_keystroke_listener (PortableServer_Servant servant,
1515 const Accessibility_DeviceEventListener l,
1516 const Accessibility_KeySet *keys,
1517 const Accessibility_ControllerEventMask mask,
1518 const Accessibility_EventTypeSeq *type,
1519 const Accessibility_EventListenerMode *mode,
1520 CORBA_Environment *ev)
1522 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1523 bonobo_object_from_servant (servant));
1524 DEControllerKeyListener *dec_listener;
1526 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1527 (void *) l, (unsigned long) mask);
1529 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1530 return spi_controller_register_device_listener (
1531 controller, (DEControllerListener *) dec_listener, ev);
1536 * CORBA Accessibility::DEController::registerDeviceEventListener
1537 * method implementation
1539 static CORBA_boolean
1540 impl_register_device_listener (PortableServer_Servant servant,
1541 const Accessibility_DeviceEventListener l,
1542 const Accessibility_EventTypeSeq *event_types,
1543 CORBA_Environment *ev)
1545 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1546 bonobo_object_from_servant (servant));
1547 DEControllerListener *dec_listener;
1549 dec_listener = spi_dec_listener_new (l, event_types, ev);
1550 return spi_controller_register_device_listener (
1551 controller, (DEControllerListener *) dec_listener, ev);
1555 CORBA_Environment *ev;
1556 DEControllerListener *listener;
1557 } RemoveListenerClosure;
1559 static SpiReEntrantContinue
1560 remove_listener_cb (GList * const *list,
1563 DEControllerListener *listener = (*list)->data;
1564 RemoveListenerClosure *ctx = user_data;
1566 if (CORBA_Object_is_equivalent (ctx->listener->object,
1567 listener->object, ctx->ev))
1569 spi_re_entrant_list_delete_link (list);
1570 spi_dec_listener_free (listener, ctx->ev);
1573 return SPI_RE_ENTRANT_CONTINUE;
1576 static SpiReEntrantContinue
1577 copy_key_listener_cb (GList * const *list,
1580 DEControllerKeyListener *key_listener = (*list)->data;
1581 RemoveListenerClosure *ctx = user_data;
1583 if (CORBA_Object_is_equivalent (ctx->listener->object,
1584 key_listener->listener.object, ctx->ev))
1586 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1587 DEControllerKeyListener *ctx_key_listener =
1588 (DEControllerKeyListener *) ctx->listener;
1589 CORBA_free (ctx_key_listener->keys);
1590 ctx_key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1593 return SPI_RE_ENTRANT_CONTINUE;
1597 spi_deregister_controller_device_listener (SpiDEController *controller,
1598 DEControllerListener *listener,
1599 CORBA_Environment *ev)
1601 RemoveListenerClosure ctx;
1604 ctx.listener = listener;
1606 spi_re_entrant_list_foreach (&controller->mouse_listeners,
1607 remove_listener_cb, &ctx);
1611 spi_deregister_controller_key_listener (SpiDEController *controller,
1612 DEControllerKeyListener *key_listener,
1613 CORBA_Environment *ev)
1615 RemoveListenerClosure ctx;
1618 ctx.listener = (DEControllerListener *) key_listener;
1620 /* special case, copy keyset from existing controller list entry */
1621 if (key_listener->keys->_length == 0)
1623 spi_re_entrant_list_foreach (&controller->key_listeners,
1624 copy_key_listener_cb, &ctx);
1627 spi_controller_deregister_global_keygrabs (controller, key_listener);
1629 spi_re_entrant_list_foreach (&controller->key_listeners,
1630 remove_listener_cb, &ctx);
1635 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1636 * method implementation
1639 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1640 const Accessibility_DeviceEventListener l,
1641 const Accessibility_KeySet *keys,
1642 const Accessibility_ControllerEventMask mask,
1643 const Accessibility_EventTypeSeq *type,
1644 CORBA_Environment *ev)
1646 DEControllerKeyListener *key_listener;
1647 SpiDEController *controller;
1649 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1651 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1653 #ifdef SPI_DEREGISTER_DEBUG
1654 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1655 (void *) l, (unsigned long) mask->value);
1658 spi_deregister_controller_key_listener (controller, key_listener, ev);
1660 spi_dec_listener_free ((DEControllerListener *) key_listener, ev);
1664 * CORBA Accessibility::DEController::deregisterDeviceEventListener
1665 * method implementation
1668 impl_deregister_device_listener (PortableServer_Servant servant,
1669 const Accessibility_DeviceEventListener l,
1670 const Accessibility_EventTypeSeq *event_types,
1671 CORBA_Environment *ev)
1673 SpiDEController *controller;
1674 DEControllerListener *listener =
1675 spi_dec_listener_new (l, event_types, ev);
1677 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1679 spi_deregister_controller_device_listener (controller, listener, ev);
1681 spi_dec_listener_free (listener, ev);
1684 static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
1686 unsigned int retval = 0;
1687 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1688 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1690 #ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
1691 retval = XkbGetSlowKeysDelay (spi_get_display (),
1692 XkbUseCoreKbd, &bounce_delay);
1694 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1696 Status s = XkbGetControls (spi_get_display (),
1697 XkbAllControlsMask, priv->xkb_desc);
1700 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
1701 retval = priv->xkb_desc->ctrls->slow_keys_delay;
1706 #ifdef SPI_XKB_DEBUG
1707 fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
1712 static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
1714 unsigned int retval = 0;
1715 DEControllerPrivateData *priv = (DEControllerPrivateData *)
1716 g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
1718 #ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1719 retval = XkbGetBounceKeysDelay (spi_get_display (),
1720 XkbUseCoreKbd, &bounce_delay);
1722 if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1724 Status s = XkbGetControls (spi_get_display (),
1725 XkbAllControlsMask, priv->xkb_desc);
1728 if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1729 retval = priv->xkb_desc->ctrls->debounce_delay;
1734 #ifdef SPI_XKB_DEBUG
1735 fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1741 dec_synth_keycode_press (SpiDEController *controller,
1742 unsigned int keycode)
1744 unsigned int time = CurrentTime;
1745 unsigned int bounce_delay;
1746 unsigned int elapsed_msec;
1748 DEControllerPrivateData *priv =
1749 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1750 spi_dec_private_quark);
1751 if (keycode == priv->last_release_keycode)
1753 bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
1756 gettimeofday (&tv, NULL);
1758 (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1759 + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1760 #ifdef SPI_XKB_DEBUG
1761 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1762 (long) (tv.tv_usec - priv->last_release_time.tv_usec));
1764 #ifdef THIS_IS_BROKEN
1765 if (elapsed_msec < bounce_delay)
1766 time = bounce_delay - elapsed_msec + 1;
1768 time = bounce_delay + 10;
1769 /* fudge for broken XTest */
1771 #ifdef SPI_XKB_DEBUG
1772 fprintf (stderr, "waiting %d ms\n", time);
1776 XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1777 priv->last_press_keycode = keycode;
1778 XSync (spi_get_display (), False);
1779 gettimeofday (&priv->last_press_time, NULL);
1784 dec_synth_keycode_release (SpiDEController *controller,
1785 unsigned int keycode)
1787 unsigned int time = CurrentTime;
1788 unsigned int slow_delay;
1789 unsigned int elapsed_msec;
1791 DEControllerPrivateData *priv =
1792 (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
1793 spi_dec_private_quark);
1794 if (keycode == priv->last_press_keycode)
1796 slow_delay = dec_xkb_get_slowkeys_delay (controller);
1799 gettimeofday (&tv, NULL);
1801 (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1802 + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1803 #ifdef SPI_XKB_DEBUG
1804 fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1805 (long) (tv.tv_usec - priv->last_press_time.tv_usec));
1807 #ifdef THIS_IS_BROKEN_DUNNO_WHY
1808 if (elapsed_msec < slow_delay)
1809 time = slow_delay - elapsed_msec + 1;
1811 time = slow_delay + 10;
1812 /* our XTest seems broken, we have to add slop as above */
1814 #ifdef SPI_XKB_DEBUG
1815 fprintf (stderr, "waiting %d ms\n", time);
1819 XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1820 priv->last_release_keycode = keycode;
1821 XSync (spi_get_display (), False);
1822 gettimeofday (&priv->last_release_time, NULL);
1827 * CORBA Accessibility::DEController::registerKeystrokeListener
1828 * method implementation
1831 impl_generate_keyboard_event (PortableServer_Servant servant,
1832 const CORBA_long keycode,
1833 const CORBA_char *keystring,
1834 const Accessibility_KeySynthType synth_type,
1835 CORBA_Environment *ev)
1837 SpiDEController *controller =
1838 SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1839 long key_synth_code;
1843 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1844 (long) keycode, (int) synth_type);
1846 /* TODO: hide/wrap/remove X dependency */
1849 * TODO: when initializing, query for XTest extension before using,
1850 * and fall back to XSendEvent() if XTest is not available.
1853 /* TODO: implement keystring mode also */
1854 gdk_error_trap_push ();
1855 key_synth_code = keycode;
1859 case Accessibility_KEY_PRESS:
1860 dec_synth_keycode_press (controller, keycode);
1862 case Accessibility_KEY_PRESSRELEASE:
1863 dec_synth_keycode_press (controller, keycode);
1864 case Accessibility_KEY_RELEASE:
1865 dec_synth_keycode_release (controller, keycode);
1867 case Accessibility_KEY_SYM:
1868 #ifdef SPI_XKB_DEBUG
1869 fprintf (stderr, "KeySym synthesis\n");
1871 key_synth_code = keycode_for_keysym (keycode);
1872 dec_synth_keycode_press (controller, key_synth_code);
1873 dec_synth_keycode_release (controller, key_synth_code);
1875 case Accessibility_KEY_STRING:
1876 fprintf (stderr, "Not yet implemented\n");
1879 if (gdk_error_trap_pop ())
1881 DBG (-1, g_warning ("Error emitting keystroke"));
1883 if (synth_type == Accessibility_KEY_SYM) {
1887 keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
1889 if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
1891 spi_dec_clear_unlatch_pending (controller);
1895 /* Accessibility::DEController::generateMouseEvent */
1897 impl_generate_mouse_event (PortableServer_Servant servant,
1900 const CORBA_char *eventName,
1901 CORBA_Environment *ev)
1904 gboolean error = FALSE;
1905 Display *display = spi_get_display ();
1907 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1908 eventName, (long int) x, (long int) y);
1910 switch (eventName[0])
1913 switch (eventName[1])
1915 /* TODO: check number of buttons before parsing */
1936 if (x != -1 && y != -1)
1938 XTestFakeMotionEvent (display, DefaultScreen (display),
1941 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
1942 if (eventName[2] == 'c')
1943 XTestFakeButtonEvent (display, button, FALSE, 1);
1944 else if (eventName[2] == 'd')
1946 XTestFakeButtonEvent (display, button, FALSE, 1);
1947 XTestFakeButtonEvent (display, button, TRUE, 2);
1948 XTestFakeButtonEvent (display, button, FALSE, 3);
1952 case 'r': /* relative motion */
1953 XTestFakeRelativeMotionEvent (display, x, y, 0);
1955 case 'a': /* absolute motion */
1956 XTestFakeMotionEvent (display, DefaultScreen (display),
1962 /* Accessibility::DEController::notifyListenersSync */
1963 static CORBA_boolean
1964 impl_notify_listeners_sync (PortableServer_Servant servant,
1965 const Accessibility_DeviceEvent *event,
1966 CORBA_Environment *ev)
1968 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1969 bonobo_object_from_servant (servant));
1971 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1972 controller, (int) event->id);
1974 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
1975 CORBA_TRUE : CORBA_FALSE;
1978 /* Accessibility::DEController::notifyListenersAsync */
1980 impl_notify_listeners_async (PortableServer_Servant servant,
1981 const Accessibility_DeviceEvent *event,
1982 CORBA_Environment *ev)
1984 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1985 bonobo_object_from_servant (servant));
1987 fprintf (stderr, "notifying listeners asynchronously\n");
1989 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
1993 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1995 GObjectClass * object_class = (GObjectClass *) klass;
1996 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
1998 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
2000 object_class->finalize = spi_device_event_controller_object_finalize;
2002 epv->registerKeystrokeListener = impl_register_keystroke_listener;
2003 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
2004 epv->registerDeviceEventListener = impl_register_device_listener;
2005 epv->deregisterDeviceEventListener = impl_deregister_device_listener;
2006 epv->generateKeyboardEvent = impl_generate_keyboard_event;
2007 epv->generateMouseEvent = impl_generate_mouse_event;
2008 epv->notifyListenersSync = impl_notify_listeners_sync;
2009 epv->notifyListenersAsync = impl_notify_listeners_async;
2011 if (!spi_dec_private_quark)
2012 spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
2016 spi_device_event_controller_init (SpiDEController *device_event_controller)
2018 DEControllerPrivateData *private;
2019 device_event_controller->key_listeners = NULL;
2020 device_event_controller->mouse_listeners = NULL;
2021 device_event_controller->keygrabs_list = NULL;
2023 private = g_new0 (DEControllerPrivateData, 1);
2024 gettimeofday (&private->last_press_time, NULL);
2025 gettimeofday (&private->last_release_time, NULL);
2026 g_object_set_qdata (G_OBJECT (device_event_controller),
2027 spi_dec_private_quark,
2029 spi_controller_register_with_devices (device_event_controller);
2033 spi_device_event_controller_forward_key_event (SpiDEController *controller,
2034 const XEvent *event)
2036 gboolean is_consumed = FALSE;
2037 CORBA_Environment ev;
2038 Accessibility_DeviceEvent key_event;
2040 g_assert (event->type == KeyPress || event->type == KeyRelease);
2042 CORBA_exception_init (&ev);
2044 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
2046 spi_controller_update_key_grabs (controller, &key_event);
2048 /* relay to listeners, and decide whether to consume it or not */
2049 is_consumed = spi_controller_notify_keylisteners (
2050 controller, &key_event, CORBA_TRUE, &ev);
2054 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
2058 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
2063 spi_device_event_controller_new (SpiRegistry *registry)
2065 SpiDEController *retval = g_object_new (
2066 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2068 retval->registry = SPI_REGISTRY (bonobo_object_ref (
2069 BONOBO_OBJECT (registry)));
2071 spi_dec_init_mouse_listener (registry);
2072 /* TODO: kill mouse listener on finalize */
2076 BONOBO_TYPE_FUNC_FULL (SpiDEController,
2077 Accessibility_DeviceEventController,
2079 spi_device_event_controller)