2 * 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 */
29 #undef SPI_KEYEVENT_DEBUG
34 #include <bonobo/bonobo-exception.h>
37 #include <X11/extensions/XTest.h>
39 #include <X11/keysymdef.h>
41 #include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
42 #include <gdk/gdkkeysyms.h>
43 #include <gdk/gdkwindow.h>
45 #include "../libspi/spi-private.h"
46 #include "deviceeventcontroller.h"
48 /* Our parent Gtk object type */
49 #define PARENT_TYPE BONOBO_TYPE_OBJECT
51 /* A pointer to our parent object class */
52 static GObjectClass *spi_device_event_controller_parent_class;
53 static int spi_error_code = 0;
54 static GdkPoint *last_mouse_pos = NULL;
55 static unsigned int mouse_button_state = 0;
56 static unsigned int mouse_button_mask =
57 Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
59 int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
63 SPI_DEVICE_TYPE_MOUSE,
64 SPI_DEVICE_TYPE_LAST_DEFINED
65 } SpiDeviceTypeCategory;
69 guint pending_add : 1;
70 guint pending_remove : 1;
72 Accessibility_ControllerEventMask mod_mask;
73 CORBA_unsigned_long key_val; /* KeyCode */
74 } DEControllerGrabMask;
78 SpiDeviceTypeCategory type;
79 } DEControllerListener;
82 DEControllerListener listener;
84 Accessibility_KeySet *keys;
85 Accessibility_ControllerEventMask mask;
86 Accessibility_KeyEventTypeSeq *typeseq;
87 Accessibility_EventListenerMode *mode;
88 } DEControllerKeyListener;
90 static void spi_controller_register_with_devices (SpiDEController *controller);
91 static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
92 Accessibility_DeviceEvent *recv);
93 static gboolean spi_controller_register_device_listener (SpiDEController *controller,
94 DEControllerListener *l,
95 CORBA_Environment *ev);
96 static void spi_device_event_controller_forward_key_event (SpiDEController *controller,
98 static void spi_deregister_controller_key_listener (SpiDEController *controller,
99 DEControllerKeyListener *key_listener,
100 CORBA_Environment *ev);
102 static gboolean spi_clear_error_state (void);
103 static gboolean spi_dec_poll_mouse_moved (gpointer data);
104 static gboolean spi_dec_poll_mouse_moving (gpointer data);
105 static gboolean spi_dec_poll_mouse_idle (gpointer data);
107 #define spi_get_display() GDK_DISPLAY()
109 /* Private methods */
112 keycode_for_keysym (long keysym)
114 return XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
117 static DEControllerGrabMask *
118 spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
120 DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
122 memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
124 clone->ref_count = 1;
125 clone->pending_add = TRUE;
126 clone->pending_remove = FALSE;
132 spi_grab_mask_free (DEControllerGrabMask *grab_mask)
138 spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
140 DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
141 DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
149 return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
154 spi_dec_poll_mouse_moved (gpointer data)
156 SpiRegistry *registry = SPI_REGISTRY (data);
157 CORBA_Environment ev;
158 Accessibility_Event e;
159 Window root_return, child_return;
160 int win_x_return,win_y_return;
162 unsigned int mask_return;
163 gchar event_name[24];
164 Display *display = spi_get_display ();
167 XQueryPointer(display, DefaultRootWindow (display),
168 &root_return, &child_return,
170 &win_x_return, &win_y_return, &mask_return);
172 if ((mask_return & mouse_button_mask) != mouse_button_state) {
173 int button_number = 0;
174 if (!(mask_return & Button1Mask) &&
175 (mouse_button_state & Button1Mask)) {
177 } else if (!(mask_return & Button2Mask) &&
178 (mouse_button_state & Button2Mask)) {
180 } else if (!(mask_return & Button3Mask) &&
181 (mouse_button_state & Button3Mask)) {
183 } else if (!(mask_return & Button4Mask) &&
184 (mouse_button_state & Button1Mask)) {
186 } else if (!(mask_return & Button5Mask) &&
187 (mouse_button_state & Button5Mask)) {
192 fprintf (stderr, "Button %d Released\n",
195 snprintf (event_name, 22, "mouse:button:%dr", button_number);
196 e.type = CORBA_string_dup (event_name);
197 e.source = BONOBO_OBJREF (registry->desktop);
198 e.detail1 = last_mouse_pos->x;
199 e.detail2 = last_mouse_pos->y;
200 CORBA_exception_init (&ev);
201 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (registry),
206 mouse_button_state = mask_return & mouse_button_mask;
208 if (last_mouse_pos == NULL) {
209 last_mouse_pos = g_new0 (GdkPoint, 1);
210 last_mouse_pos->x = 0;
211 last_mouse_pos->y = 0;
212 e.type = g_strdup ("mouse:abs");
214 e.type = g_strdup ("mouse:rel");
216 if (x != last_mouse_pos->x || y != last_mouse_pos->y) {
217 e.source = BONOBO_OBJREF (registry->desktop);
218 e.detail1 = x - last_mouse_pos->x;
219 e.detail2 = y - last_mouse_pos->y;
220 CORBA_exception_init (&ev);
221 last_mouse_pos->x = x;
222 last_mouse_pos->y = y;
223 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (registry),
234 spi_dec_poll_mouse_idle (gpointer data)
236 if (! spi_dec_poll_mouse_moved (data))
240 g_timeout_add (20, spi_dec_poll_mouse_moving, data);
246 spi_dec_poll_mouse_moving (gpointer data)
248 if (spi_dec_poll_mouse_moved (data))
252 g_timeout_add (100, spi_dec_poll_mouse_idle, data);
258 spi_dec_ungrab_mouse (gpointer data)
260 Display *display = spi_get_display ();
261 fprintf (stderr, "mouse ungrab : display = %p\n", display);
264 XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
265 XDefaultRootWindow (spi_get_display ()));
266 fprintf (stderr, "mouse grab released\n");
272 spi_dec_init_mouse_listener (SpiRegistry *registry)
274 Display *display = spi_get_display ();
275 g_timeout_add (100, spi_dec_poll_mouse_idle, registry);
279 XGrabButton (display, AnyButton, 0,
280 gdk_x11_get_default_root_xwindow (),
281 True, ButtonPressMask | ButtonReleaseMask,
282 GrabModeSync, GrabModeAsync, None, None);
283 XSync (display, False);
284 fprintf (stderr, "mouse buttons grabbed\n");
288 static DEControllerKeyListener *
289 spi_dec_key_listener_new (CORBA_Object l,
290 const Accessibility_KeySet *keys,
291 const Accessibility_ControllerEventMask mask,
292 const Accessibility_KeyEventTypeSeq *typeseq,
293 const Accessibility_EventListenerMode *mode,
294 CORBA_Environment *ev)
296 DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
297 key_listener->listener.object = bonobo_object_dup_ref (l, ev);
298 key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
299 key_listener->keys = ORBit_copy_value (keys, TC_Accessibility_KeySet);
300 key_listener->mask = mask;
301 key_listener->typeseq = ORBit_copy_value (typeseq, TC_Accessibility_KeyEventTypeSeq);
303 key_listener->mode = ORBit_copy_value (mode, TC_Accessibility_EventListenerMode);
305 key_listener->mode = NULL;
308 g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
309 (unsigned int) key_listener->mask,
310 (int) (mode ? mode->global : 0),
311 (void *) key_listener->keys,
312 (int) (key_listener->keys ? key_listener->keys->_length : 0));
318 static DEControllerKeyListener *
319 spi_key_listener_clone (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
321 DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
322 clone->listener.object =
323 CORBA_Object_duplicate (key_listener->listener.object, ev);
324 clone->listener.type = SPI_DEVICE_TYPE_KBD;
325 clone->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
326 clone->mask = key_listener->mask;
327 clone->typeseq = ORBit_copy_value (key_listener->typeseq, TC_Accessibility_KeyEventTypeSeq);
328 if (key_listener->mode)
329 clone->mode = ORBit_copy_value (key_listener->mode, TC_Accessibility_EventListenerMode);
336 spi_key_listener_data_free (DEControllerKeyListener *key_listener, CORBA_Environment *ev)
338 CORBA_free (key_listener->typeseq);
339 CORBA_free (key_listener->keys);
340 g_free (key_listener);
344 spi_key_listener_clone_free (DEControllerKeyListener *clone, CORBA_Environment *ev)
346 CORBA_Object_release (clone->listener.object, ev);
347 spi_key_listener_data_free (clone, ev);
351 spi_dec_key_listener_free (DEControllerKeyListener *key_listener,
352 CORBA_Environment *ev)
354 bonobo_object_release_unref (key_listener->listener.object, ev);
355 spi_key_listener_data_free (key_listener, ev);
359 _register_keygrab (SpiDEController *controller,
360 DEControllerGrabMask *grab_mask)
364 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
365 spi_grab_mask_compare_values);
368 DEControllerGrabMask *cur_mask = l->data;
370 cur_mask->ref_count++;
371 if (cur_mask->pending_remove)
373 cur_mask->pending_remove = FALSE;
378 controller->keygrabs_list =
379 g_list_prepend (controller->keygrabs_list,
380 spi_grab_mask_clone (grab_mask));
385 _deregister_keygrab (SpiDEController *controller,
386 DEControllerGrabMask *grab_mask)
390 l = g_list_find_custom (controller->keygrabs_list, grab_mask,
391 spi_grab_mask_compare_values);
395 DEControllerGrabMask *cur_mask = l->data;
397 cur_mask->ref_count--;
398 if (cur_mask->ref_count <= 0)
400 cur_mask->pending_remove = TRUE;
405 g_warning ("De-registering non-existant grab");
410 handle_keygrab (SpiDEController *controller,
411 DEControllerKeyListener *key_listener,
412 void (*process_cb) (SpiDEController *controller,
413 DEControllerGrabMask *grab_mask))
415 DEControllerGrabMask grab_mask = { 0 };
417 grab_mask.mod_mask = key_listener->mask;
418 if (key_listener->keys->_length == 0) /* special case means AnyKey/AllKeys */
420 grab_mask.key_val = AnyKey;
422 fprintf (stderr, "AnyKey grab!"); */
424 process_cb (controller, &grab_mask);
430 for (i = 0; i < key_listener->keys->_length; ++i)
432 Accessibility_KeyDefinition keydef = key_listener->keys->_buffer[i];
433 long int key_val = keydef.keysym;
434 /* X Grabs require keycodes, not keysyms */
435 if (keydef.keystring && keydef.keystring[0])
437 key_val = XStringToKeysym(keydef.keystring);
441 key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
445 key_val = keydef.keycode;
447 grab_mask.key_val = key_val;
448 process_cb (controller, &grab_mask);
454 spi_controller_register_global_keygrabs (SpiDEController *controller,
455 DEControllerKeyListener *key_listener)
457 handle_keygrab (controller, key_listener, _register_keygrab);
458 return spi_controller_update_key_grabs (controller, NULL);
462 spi_controller_deregister_global_keygrabs (SpiDEController *controller,
463 DEControllerKeyListener *key_listener)
465 handle_keygrab (controller, key_listener, _deregister_keygrab);
466 spi_controller_update_key_grabs (controller, NULL);
470 spi_controller_register_device_listener (SpiDEController *controller,
471 DEControllerListener *listener,
472 CORBA_Environment *ev)
474 DEControllerKeyListener *key_listener;
476 switch (listener->type) {
477 case SPI_DEVICE_TYPE_KBD:
478 key_listener = (DEControllerKeyListener *) listener;
480 controller->key_listeners = g_list_prepend (controller->key_listeners,
482 if (key_listener->mode->global)
484 return spi_controller_register_global_keygrabs (controller, key_listener);
496 spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
499 Accessibility_Event e;
500 CORBA_Environment ev;
501 gchar event_name[24];
502 int button = ((XButtonEvent *) xevent)->button;
504 mouse_button_state = ((XButtonEvent *) xevent)->state;
509 mouse_button_state |= Button1Mask;
512 mouse_button_state |= Button2Mask;
515 mouse_button_state |= Button3Mask;
518 mouse_button_state |= Button4Mask;
521 mouse_button_state |= Button5Mask;
524 last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
525 last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
528 fprintf (stderr, "mouse button %d %s (%x)\n",
529 ((XButtonEvent *) xevent)->button,
530 (xevent->type == ButtonPress) ? "Press" : "Release",
533 snprintf (event_name, 22, "mouse:button:%d%c", button,
534 (xevent->type == ButtonPress) ? 'p' : 'r');
536 e.type = CORBA_string_dup (event_name);
537 e.source = BONOBO_OBJREF (controller->registry->desktop);
538 e.detail1 = last_mouse_pos->x;
539 e.detail2 = last_mouse_pos->y;
540 CORBA_exception_init (&ev);
541 Accessibility_Registry_notifyEvent (BONOBO_OBJREF (controller->registry),
545 XAllowEvents (spi_get_display (), ReplayPointer, CurrentTime);
548 static GdkFilterReturn
549 global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
551 XEvent *xevent = gdk_xevent;
552 SpiDEController *controller;
554 if (xevent->type == KeyPress && xevent->type == KeyRelease)
556 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
557 spi_device_event_controller_forward_key_event (controller, xevent);
558 /* FIXME: is this right ? */
559 return GDK_FILTER_CONTINUE;
561 if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
563 controller = SPI_DEVICE_EVENT_CONTROLLER (data);
564 spi_device_event_controller_forward_mouse_event (controller, xevent);
567 return GDK_FILTER_CONTINUE;
571 _spi_controller_device_error_handler (Display *display, XErrorEvent *error)
573 if (error->error_code == BadAccess)
575 g_message ("Could not complete key grab: grab already in use.\n");
576 spi_error_code = BadAccess;
581 return (*x_default_error_handler) (display, error);
586 spi_controller_register_with_devices (SpiDEController *controller)
588 /* calls to device-specific implementations and routines go here */
589 /* register with: keyboard hardware code handler */
590 /* register with: (translated) keystroke handler */
592 gdk_window_add_filter (NULL, global_filter_fn, controller);
594 gdk_window_set_events (gdk_get_default_root_window (),
595 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
597 x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
600 #define SPI_KEYEVENT_DEBUG
602 spi_key_set_contains_key (Accessibility_KeySet *key_set,
603 const Accessibility_DeviceEvent *key_event)
610 g_print ("null key set!");
614 len = key_set->_length;
616 if (len == 0) /* special case, means "all keys/any key" */
618 g_print ("anykey\n");
622 for (i = 0; i < len; ++i)
624 #ifdef SPI_KEYEVENT_DEBUG
625 g_print ("key_set[%d] = %d; key_event %d, code %d, string %s\n",
626 i, (int) key_set->_buffer[i].keycode,
627 (int) key_event->id, (int) key_event->hw_code,
628 key_event->event_string);
630 if (key_set->_buffer[i].keysym == (CORBA_long) key_event->id)
634 if (key_set->_buffer[i].keycode == (CORBA_long) key_event->hw_code)
638 if (key_event->event_string && key_event->event_string[0] &&
639 !strcmp (key_set->_buffer[i].keystring, key_event->event_string))
649 spi_key_eventtype_seq_contains_event (Accessibility_KeyEventTypeSeq *type_seq,
650 const Accessibility_DeviceEvent *key_event)
658 g_print ("null type seq!");
662 len = type_seq->_length;
664 if (len == 0) /* special case, means "all events/any event" */
669 for (i = 0; i < len; ++i)
672 g_print ("type_seq[%d] = %d; key event type = %d\n", i,
673 (int) type_seq->_buffer[i], (int) key_event->type);
675 if (type_seq->_buffer[i] == (CORBA_long) key_event->type)
685 spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
686 DEControllerKeyListener *listener,
687 CORBA_boolean is_system_global)
689 if ((key_event->modifiers == (CORBA_unsigned_short) (listener->mask & 0xFFFF)) &&
690 spi_key_set_contains_key (listener->keys, key_event) &&
691 spi_key_eventtype_seq_contains_event (listener->typeseq, key_event) &&
692 (is_system_global == listener->mode->global))
703 spi_controller_notify_keylisteners (SpiDEController *controller,
704 const Accessibility_DeviceEvent *key_event,
705 CORBA_boolean is_system_global,
706 CORBA_Environment *ev)
709 GSList *notify = NULL, *l2;
710 GList **key_listeners = &controller->key_listeners;
711 gboolean is_consumed;
718 for (l = *key_listeners; l; l = l->next)
720 DEControllerKeyListener *key_listener = l->data;
722 if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
724 Accessibility_DeviceEventListener ls = key_listener->listener.object;
726 if (ls != CORBA_OBJECT_NIL)
728 /* we clone (don't dup) the listener, to avoid refcount inc. */
729 notify = g_slist_prepend (notify,
730 spi_key_listener_clone (key_listener, ev));
735 #ifdef SPI_KEYEVENT_DEBUG
738 g_print ("no match for event\n");
743 for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
745 DEControllerKeyListener *key_listener = l2->data;
746 Accessibility_DeviceEventListener ls = key_listener->listener.object;
748 is_consumed = Accessibility_DeviceEventListener_notifyEvent (ls, key_event, ev);
753 spi_deregister_controller_key_listener (controller, key_listener,
755 CORBA_exception_free (ev);
758 CORBA_Object_release (ls, ev);
761 for (; l2; l2 = l2->next)
763 DEControllerKeyListener *key_listener = l2->data;
764 spi_key_listener_clone_free (key_listener, ev);
765 /* clone doesn't have its own ref, so don't use spi_key_listener_free */
768 g_slist_free (notify);
771 if (is_consumed) g_message ("consumed\n");
777 spi_clear_error_state ()
779 gboolean retval = spi_error_code != 0;
784 static Accessibility_DeviceEvent
785 spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
787 Accessibility_DeviceEvent key_event;
789 const int cbuf_bytes = 20;
790 char cbuf [cbuf_bytes];
792 keysym = XLookupKeysym (x_key_event, 0);
793 key_event.id = (CORBA_long)(keysym);
794 key_event.hw_code = (CORBA_short) x_key_event->keycode;
795 if (((XEvent *) x_key_event)->type == KeyPress)
797 key_event.type = Accessibility_KEY_PRESSED;
801 key_event.type = Accessibility_KEY_RELEASED;
803 key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
804 key_event.is_text = CORBA_FALSE;
808 key_event.event_string = CORBA_string_dup ("space");
811 #ifdef SPI_KEYEVENT_DEBUG
812 fprintf(stderr, "Tab\n");
814 key_event.event_string = CORBA_string_dup ("Tab");
817 key_event.event_string = CORBA_string_dup ("Backspace");
820 key_event.event_string = CORBA_string_dup ("Return");
823 key_event.event_string = CORBA_string_dup ("Home");
826 key_event.event_string = CORBA_string_dup ("Page_Down");
829 key_event.event_string = CORBA_string_dup ("Page_Up");
832 key_event.event_string = CORBA_string_dup ("F1");
835 key_event.event_string = CORBA_string_dup ("F2");
838 key_event.event_string = CORBA_string_dup ("F3");
841 key_event.event_string = CORBA_string_dup ("F4");
844 key_event.event_string = CORBA_string_dup ("F5");
847 key_event.event_string = CORBA_string_dup ("F6");
850 key_event.event_string = CORBA_string_dup ("F7");
853 key_event.event_string = CORBA_string_dup ("F8");
856 key_event.event_string = CORBA_string_dup ("F9");
859 key_event.event_string = CORBA_string_dup ("F10");
862 key_event.event_string = CORBA_string_dup ("F11");
865 key_event.event_string = CORBA_string_dup ("F12");
868 key_event.event_string = CORBA_string_dup ("End");
871 key_event.event_string = CORBA_string_dup ("Escape");
874 key_event.event_string = CORBA_string_dup ("Up");
877 key_event.event_string = CORBA_string_dup ("Down");
880 key_event.event_string = CORBA_string_dup ("Left");
883 key_event.event_string = CORBA_string_dup ("Right");
886 if (XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL) > 0)
888 key_event.event_string = CORBA_string_dup (cbuf);
889 if (isgraph (keysym))
891 key_event.is_text = CORBA_TRUE; /* FIXME: incorrect for some composed chars? */
896 key_event.event_string = CORBA_string_dup ("");
900 key_event.timestamp = (CORBA_unsigned_long) x_key_event->time;
901 #ifdef SPI_KEYEVENT_DEBUG
903 "Key %lu pressed (%c), modifiers %d\n",
904 (unsigned long) keysym,
905 keysym ? (int) keysym : '*',
906 (int) x_key_event->state);
909 fprintf (stderr, "%s%c",
910 (x_key_event->state & Mod1Mask)?"Alt-":"",
911 ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
912 g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
913 #endif /* SPI_DEBUG */
918 spi_controller_update_key_grabs (SpiDEController *controller,
919 Accessibility_DeviceEvent *recv)
922 gboolean update_failed = FALSE;
924 g_return_val_if_fail (controller != NULL, FALSE);
927 * masks known to work with default RH 7.1+:
928 * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
929 * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
930 * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
931 * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
933 * ControlMask grabs are broken, must be in use already
935 for (l = controller->keygrabs_list; l; l = next)
938 gboolean re_issue_grab;
939 DEControllerGrabMask *grab_mask = l->data;
943 re_issue_grab = recv &&
944 /* (recv->type == Accessibility_KEY_RELEASED) && - (?) */
945 (recv->modifiers & grab_mask->mod_mask) &&
946 (grab_mask->key_val == keycode_for_keysym (recv->id));
949 fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
950 (long int) grab_mask->key_val,
951 (long int) grab_mask->mod_mask,
952 grab_mask->pending_add ? '+' : '.',
953 grab_mask->pending_remove ? '-' : '.',
954 re_issue_grab ? "re-issue": "");
959 if (grab_mask->pending_add && grab_mask->pending_remove)
963 else if (grab_mask->pending_remove)
966 fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
968 XUngrabKey (spi_get_display (),
971 gdk_x11_get_default_root_xwindow ());
975 else if (grab_mask->pending_add || re_issue_grab)
979 fprintf (stderr, "grab with mask %x\n", grab_mask->mod_mask);
981 XGrabKey (spi_get_display (),
984 gdk_x11_get_default_root_xwindow (),
988 XSync (spi_get_display (), False);
989 update_failed = spi_clear_error_state ();
991 while (grab_mask->ref_count > 0) --grab_mask->ref_count;
996 grab_mask->pending_add = FALSE;
997 grab_mask->pending_remove = FALSE;
1001 g_assert (grab_mask->ref_count <= 0);
1003 controller->keygrabs_list = g_list_delete_link (
1004 controller->keygrabs_list, l);
1006 spi_grab_mask_free (grab_mask);
1011 return ! update_failed;
1015 * Implemented GObject::finalize
1018 spi_device_event_controller_object_finalize (GObject *object)
1020 SpiDEController *controller;
1022 controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1025 fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1027 /* disconnect any special listeners, get rid of outstanding keygrabs */
1028 XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1030 spi_device_event_controller_parent_class->finalize (object);
1034 * CORBA Accessibility::DEController::registerKeystrokeListener
1035 * method implementation
1037 static CORBA_boolean
1038 impl_register_keystroke_listener (PortableServer_Servant servant,
1039 const Accessibility_DeviceEventListener l,
1040 const Accessibility_KeySet *keys,
1041 const Accessibility_ControllerEventMask mask,
1042 const Accessibility_KeyEventTypeSeq *type,
1043 const Accessibility_EventListenerMode *mode,
1044 CORBA_Environment *ev)
1046 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1047 bonobo_object_from_servant (servant));
1048 DEControllerKeyListener *dec_listener;
1050 fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
1051 (void *) l, (unsigned long) mask);
1053 dec_listener = spi_dec_key_listener_new (l, keys, mask, type, mode, ev);
1054 return spi_controller_register_device_listener (
1055 controller, (DEControllerListener *) dec_listener, ev);
1060 CORBA_Environment *ev;
1061 DEControllerKeyListener *key_listener;
1062 } RemoveKeyListenerClosure;
1064 static SpiReEntrantContinue
1065 remove_key_listener_cb (GList * const *list,
1068 DEControllerKeyListener *key_listener = (*list)->data;
1069 RemoveKeyListenerClosure *ctx = user_data;
1071 if (CORBA_Object_is_equivalent (ctx->key_listener->listener.object,
1072 key_listener->listener.object, ctx->ev))
1074 spi_re_entrant_list_delete_link (list);
1075 spi_dec_key_listener_free (key_listener, ctx->ev);
1078 return SPI_RE_ENTRANT_CONTINUE;
1081 static SpiReEntrantContinue
1082 copy_key_listener_cb (GList * const *list,
1085 DEControllerKeyListener *key_listener = (*list)->data;
1086 RemoveKeyListenerClosure *ctx = user_data;
1088 if (CORBA_Object_is_equivalent (ctx->key_listener->listener.object,
1089 key_listener->listener.object, ctx->ev))
1091 /* TODO: FIXME aggregate keys in case the listener is registered twice */
1092 CORBA_free (ctx->key_listener->keys);
1093 ctx->key_listener->keys = ORBit_copy_value (key_listener->keys, TC_Accessibility_KeySet);
1096 return SPI_RE_ENTRANT_CONTINUE;
1101 spi_deregister_controller_key_listener (SpiDEController *controller,
1102 DEControllerKeyListener *key_listener,
1103 CORBA_Environment *ev)
1105 RemoveKeyListenerClosure ctx;
1108 ctx.key_listener = key_listener;
1110 /* special case, copy keyset from existing controller list entry */
1111 if (key_listener->keys->_length == 0)
1113 spi_re_entrant_list_foreach (&controller->key_listeners,
1114 copy_key_listener_cb, &ctx);
1117 spi_controller_deregister_global_keygrabs (controller, key_listener);
1119 spi_re_entrant_list_foreach (&controller->key_listeners,
1120 remove_key_listener_cb, &ctx);
1125 * CORBA Accessibility::DEController::deregisterKeystrokeListener
1126 * method implementation
1129 impl_deregister_keystroke_listener (PortableServer_Servant servant,
1130 const Accessibility_DeviceEventListener l,
1131 const Accessibility_KeySet *keys,
1132 const Accessibility_ControllerEventMask mask,
1133 const Accessibility_KeyEventTypeSeq *type,
1134 CORBA_Environment *ev)
1136 DEControllerKeyListener *key_listener;
1137 SpiDEController *controller;
1139 controller = SPI_DEVICE_EVENT_CONTROLLER (bonobo_object (servant));
1141 key_listener = spi_dec_key_listener_new (l, keys, mask, type, NULL, ev);
1143 #ifdef SPI_DEREGISTER_DEBUG
1144 fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1145 (void *) l, (unsigned long) mask->value);
1148 spi_deregister_controller_key_listener (controller, key_listener, ev);
1150 spi_dec_key_listener_free (key_listener, ev);
1154 * CORBA Accessibility::DEController::registerKeystrokeListener
1155 * method implementation
1158 impl_generate_keyboard_event (PortableServer_Servant servant,
1159 const CORBA_long keycode,
1160 const CORBA_char *keystring,
1161 const Accessibility_KeySynthType synth_type,
1162 CORBA_Environment *ev)
1164 long key_synth_code;
1167 fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1168 (long) keycode, (int) synth_type);
1170 /* TODO: hide/wrap/remove X dependency */
1172 /* TODO: be accessX-savvy so that keyrelease occurs after sufficient timeout */
1175 * TODO: when initializing, query for XTest extension before using,
1176 * and fall back to XSendEvent() if XTest is not available.
1179 /* TODO: implement keystring mode also */
1180 gdk_error_trap_push ();
1184 case Accessibility_KEY_PRESS:
1185 XTestFakeKeyEvent (spi_get_display (), (unsigned int) keycode, True, CurrentTime);
1187 case Accessibility_KEY_PRESSRELEASE:
1188 XTestFakeKeyEvent (spi_get_display (), (unsigned int) keycode, True, CurrentTime);
1189 case Accessibility_KEY_RELEASE:
1190 XTestFakeKeyEvent (spi_get_display (), (unsigned int) keycode, False, CurrentTime);
1192 case Accessibility_KEY_SYM:
1193 key_synth_code = keycode_for_keysym (keycode);
1194 XTestFakeKeyEvent (spi_get_display (), (unsigned int) key_synth_code, True, CurrentTime);
1195 XTestFakeKeyEvent (spi_get_display (), (unsigned int) key_synth_code, False, CurrentTime);
1197 case Accessibility_KEY_STRING:
1198 fprintf (stderr, "Not yet implemented\n");
1201 if (gdk_error_trap_pop ())
1203 g_warning ("Error emitting keystroke");
1207 /* Accessibility::DEController::generateMouseEvent */
1209 impl_generate_mouse_event (PortableServer_Servant servant,
1212 const CORBA_char *eventName,
1213 CORBA_Environment *ev)
1216 gboolean error = FALSE;
1217 Display *display = spi_get_display ();
1219 fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1220 eventName, (long int) x, (long int) y);
1222 g_message ("mouse event synthesis\n");
1223 switch (eventName[0])
1226 switch (eventName[1])
1228 /* TODO: check number of buttons before parsing */
1243 if (x != -1 && y != -1)
1245 XTestFakeMotionEvent (display, DefaultScreen (display),
1248 XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
1249 if (eventName[2] == 'c')
1250 XTestFakeButtonEvent (display, button, FALSE, 1);
1251 else if (eventName[2] == 'd')
1253 XTestFakeButtonEvent (display, button, FALSE, 1);
1254 XTestFakeButtonEvent (display, button, TRUE, 2);
1255 XTestFakeButtonEvent (display, button, FALSE, 3);
1259 case 'r': /* relative motion */
1260 XTestFakeRelativeMotionEvent (display, x, y, 0);
1262 case 'a': /* absolute motion */
1263 XTestFakeMotionEvent (display, DefaultScreen (display),
1269 /* Accessibility::DEController::notifyListenersSync */
1270 static CORBA_boolean
1271 impl_notify_listeners_sync (PortableServer_Servant servant,
1272 const Accessibility_DeviceEvent *event,
1273 CORBA_Environment *ev)
1275 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1276 bonobo_object_from_servant (servant));
1278 g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1279 controller, (int) event->id);
1281 return spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev) ?
1282 CORBA_TRUE : CORBA_FALSE;
1285 /* Accessibility::DEController::notifyListenersAsync */
1287 impl_notify_listeners_async (PortableServer_Servant servant,
1288 const Accessibility_DeviceEvent *event,
1289 CORBA_Environment *ev)
1291 SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER (
1292 bonobo_object_from_servant (servant));
1294 fprintf (stderr, "notifying listeners asynchronously\n");
1296 spi_controller_notify_keylisteners (controller, event, CORBA_FALSE, ev);
1300 spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1302 GObjectClass * object_class = (GObjectClass *) klass;
1303 POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
1305 spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1307 object_class->finalize = spi_device_event_controller_object_finalize;
1309 epv->registerKeystrokeListener = impl_register_keystroke_listener;
1310 epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
1311 epv->generateKeyboardEvent = impl_generate_keyboard_event;
1312 epv->generateMouseEvent = impl_generate_mouse_event;
1313 epv->notifyListenersSync = impl_notify_listeners_sync;
1314 epv->notifyListenersAsync = impl_notify_listeners_async;
1318 spi_device_event_controller_init (SpiDEController *device_event_controller)
1320 device_event_controller->key_listeners = NULL;
1321 device_event_controller->mouse_listeners = NULL;
1322 device_event_controller->keygrabs_list = NULL;
1325 * TODO: fixme, this module makes the foolish assumptions that
1326 * registryd uses the same display as the apps, and that the
1327 * DISPLAY environment variable is set.
1329 gdk_init (NULL, NULL);
1331 spi_controller_register_with_devices (device_event_controller);
1335 spi_device_event_controller_forward_key_event (SpiDEController *controller,
1336 const XEvent *event)
1338 gboolean is_consumed = FALSE;
1339 CORBA_Environment ev;
1340 Accessibility_DeviceEvent key_event;
1342 g_assert (event->type == KeyPress || event->type == KeyRelease);
1344 CORBA_exception_init (&ev);
1346 key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
1348 spi_controller_update_key_grabs (controller, &key_event);
1350 /* relay to listeners, and decide whether to consume it or not */
1351 is_consumed = spi_controller_notify_keylisteners (
1352 controller, &key_event, CORBA_TRUE, &ev);
1354 CORBA_exception_free (&ev);
1358 XAllowEvents (spi_get_display (), AsyncKeyboard, CurrentTime);
1362 XAllowEvents (spi_get_display (), ReplayKeyboard, CurrentTime);
1367 spi_device_event_controller_new (SpiRegistry *registry)
1369 SpiDEController *retval = g_object_new (
1370 SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
1372 retval->registry = SPI_REGISTRY (bonobo_object_ref (
1373 BONOBO_OBJECT (registry)));
1375 spi_dec_init_mouse_listener (registry);
1376 /* TODO: kill mouse listener on finalize */
1381 BONOBO_TYPE_FUNC_FULL (SpiDEController,
1382 Accessibility_DeviceEventController,
1384 spi_device_event_controller);