2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001 Sun Microsystems Inc.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 * registry.c: test for accessibility implementation
32 #include <bonobo/Bonobo.h>
35 * This pulls the CORBA definitions for the "Accessibility::Registry" server
37 #include <libspi/Accessibility.h>
40 * This pulls the definition for the BonoboObject (GType)
45 * Our parent GObject type
47 #define PARENT_TYPE LISTENER_TYPE
50 * A pointer to our parent object class
52 static ListenerClass *registry_parent_class;
70 Accessibility_EventListener listener;
71 guint event_type_hash;
72 EventTypeMajor event_type_major;
75 /* static function prototypes */
76 static void registry_notify_listeners ( GList *listeners,
77 const Accessibility_Event *e,
78 CORBA_Environment *ev);
81 * Implemented GObject::finalize
84 registry_object_finalize (GObject *object)
86 /* Registry *registry = REGISTRY (object); */
87 GObjectClass *object_class = G_OBJECT_GET_CLASS( object);
89 printf("registry_object_finalize called\n");
91 object_class->finalize (object);
95 * registerApplication:
96 * @application: a reference to the requesting @Application
99 * Register a new application with the accessibility broker.
103 impl_accessibility_registry_register_application (PortableServer_Servant servant,
104 const Accessibility_Application application,
105 CORBA_Environment * ev)
107 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
110 fprintf (stderr, "registering app %p\n", application);
112 registry->desktop->applications = g_list_append (registry->desktop->applications,
113 CORBA_Object_duplicate (application, ev));
115 /* TODO: create unique string here (with libuuid call ?) */
116 Accessibility_Application__set_id (application, "test-some-unique-string", ev);
119 * TODO: change the implementation below to a WM-aware one;
120 * e.g. don't add all apps to the Desktop
125 compare_object_hash (gconstpointer p1, gconstpointer p2)
127 CORBA_Environment ev;
128 long long diff = ((CORBA_Object_hash ((CORBA_Object) p2, (CORBA_unsigned_long) 0, &ev)) -
129 (CORBA_Object_hash ((CORBA_Object) p1, (CORBA_unsigned_long) 0, &ev)));
130 return ((diff < 0) ? -1 : ((diff > 0) ? 1 : 0));
134 toolkit_listener (GSignalInvocationHint *signal_hint,
135 guint n_param_values,
136 const GValue *param_values,
140 g_signal_name (signal_hint->signal_id);
141 fprintf (stderr, "Received signal %s\n", name);
143 /* TODO: notify the actual listeners! */
149 register_with_toolkit (EventTypeStruct *etype)
153 atk_add_global_event_listener (toolkit_listener, etype->event_name);
155 fprintf (stderr, "registered %d for toolkit events named: %s\n",
162 compare_listener_hash (gconstpointer p1, gconstpointer p2)
164 return (((ListenerStruct *)p2)->event_type_hash - ((ListenerStruct *)p1)->event_type_hash);
168 parse_event_type (EventTypeStruct *etype, char *event_name)
170 static gunichar delimiter = 0;
171 char * major_delim_char;
172 char * minor_delim_char;
175 etype->event_name = g_strndup(event_name, 255);
179 delimiter = g_utf8_get_char (":");
182 major_delim_char = g_utf8_strchr (event_name, (gssize) 32, delimiter);
183 minor_delim_char = g_utf8_strrchr (event_name, (gssize) 255, delimiter);
185 nbytes = (guint)((gint64) minor_delim_char -
186 (gint64) major_delim_char);
188 fprintf (stderr, "nbytes = %ld\n", (long) nbytes);
189 if (!g_ascii_strncasecmp (event_name, "focus:", 6))
191 etype->major = ETYPE_FOCUS;
193 else if (!g_ascii_strncasecmp (event_name, "window:", 7))
195 etype->major = ETYPE_WINDOW;
199 etype->major = ETYPE_TOOLKIT;
202 if (major_delim_char != minor_delim_char)
204 etype->minor = g_strndup (major_delim_char, nbytes);
205 etype->detail = g_strdup (minor_delim_char);
206 etype->hash = g_str_hash (major_delim_char);
210 if (* (major_delim_char+1))
212 etype->minor = g_strdup (major_delim_char+1);
213 etype->hash = g_str_hash (major_delim_char+1);
217 etype->minor = g_strdup ("");
218 etype->hash = g_str_hash ("");
220 etype->detail = g_strdup ("");
223 /* TODO: don't forget to free the strings from caller when done ! */
227 * deregisterApplication:
228 * @application: a reference to the @Application
229 * to be deregistered.
230 * return values: void
232 * De-register an application previously registered with the broker.
236 impl_accessibility_registry_deregister_application (PortableServer_Servant servant,
237 const Accessibility_Application application,
238 CORBA_Environment * ev)
240 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
241 GList *list = g_list_find_custom (registry->applications, application, compare_object_hash);
244 fprintf (stderr, "deregistering application\n");
245 registry->applications = g_list_delete_link (registry->applications, list);
250 * CORBA Accessibility::Registry::registerGlobalEventListener method implementation
253 impl_accessibility_registry_register_global_event_listener
254 (PortableServer_Servant servant,
255 Accessibility_EventListener listener,
256 const CORBA_char *event_name,
257 CORBA_Environment *ev)
262 * register with app toolkits only for requested event types
266 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
267 /* fprintf(stderr, "registering %x/%x\n", listener, *listener); */
268 ListenerStruct *ls = g_malloc (sizeof (ListenerStruct));
270 EventTypeStruct etype;
272 /* parse, check major event type and add listener accordingly */
273 parse_event_type (&etype, event_name);
274 ls->event_type_hash = etype.hash;
275 ls->event_type_major = etype.major;
280 ls->listener = CORBA_Object_duplicate (listener, ev);
281 registry->focus_listeners =
282 g_list_append (registry->focus_listeners, ls);
284 case (ETYPE_WINDOW) :
285 /* Support for Window Manager Events is not yet implemented */
287 case (ETYPE_TOOLKIT) :
288 ls->listener = CORBA_Object_duplicate (listener, ev);
289 registry->toolkit_listeners =
290 g_list_append (registry->toolkit_listeners, ls);
291 register_with_toolkit (&etype);
299 * CORBA Accessibility::Registry::deregisterGlobalEventListenerAll method implementation
302 impl_accessibility_registry_deregister_global_event_listener_all
303 (PortableServer_Servant servant,
304 Accessibility_EventListener listener,
305 CORBA_Environment *ev)
307 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
308 GList *list = g_list_find_custom (registry->focus_listeners, listener, compare_object_hash);
311 * TODO : de-register with toolkit if the last instance of a listener
312 * to a particular toolkit event type has been deregistered.
317 fprintf (stderr, "deregistering listener\n");
318 registry->focus_listeners = g_list_delete_link (registry->focus_listeners, list);
319 list = g_list_find_custom (registry->focus_listeners, listener, compare_object_hash);
321 list = g_list_find_custom (registry->toolkit_listeners, listener, compare_object_hash);
324 fprintf (stderr, "deregistering listener\n");
325 registry->toolkit_listeners = g_list_delete_link (registry->toolkit_listeners, list);
326 list = g_list_find_custom (registry->toolkit_listeners, listener, compare_object_hash);
331 * CORBA Accessibility::Registry::deregisterGlobalEventListener method implementation
334 impl_accessibility_registry_deregister_global_event_listener
335 (PortableServer_Servant servant,
336 Accessibility_EventListener listener,
337 const CORBA_char * event_name,
338 CORBA_Environment *ev)
340 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
342 EventTypeStruct etype;
346 parse_event_type (&etype, event_name);
350 listeners = ®istry->focus_listeners;
352 case (ETYPE_WINDOW) :
353 /* Support for Window Manager Events is not yet implemented */
355 case (ETYPE_TOOLKIT) :
356 listeners = ®istry->toolkit_listeners;
362 ls.event_type_hash = etype.hash;
363 list = g_list_find_custom (*listeners, &ls, compare_listener_hash);
367 fprintf (stderr, "deregistering listener\n");
368 *listeners = g_list_delete_link (*listeners, list);
369 list = g_list_find_custom (*listeners, &ls, compare_listener_hash);
376 * return values: a short integer indicating the current number of
379 * Get the current number of desktops.
383 impl_accessibility_registry_get_desktop_count (PortableServer_Servant servant,
384 CORBA_Environment * ev)
386 /* TODO: implement support for multiple virtual desktops */
387 CORBA_short n_desktops;
388 n_desktops = (CORBA_short) 1;
394 * @n: the index of the requested @Desktop.
395 * return values: a reference to the requested @Desktop.
397 * Get the nth accessible desktop.
400 static Accessibility_Desktop
401 impl_accessibility_registry_get_desktop (PortableServer_Servant servant,
403 CORBA_Environment * ev)
405 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
407 /* TODO: implement support for multiple virtual desktops */
410 return (Accessibility_Desktop)
411 CORBA_Object_duplicate (
412 bonobo_object_corba_objref (bonobo_object (registry->desktop)), ev);
416 return (Accessibility_Desktop) CORBA_OBJECT_NIL;
422 * return values: a sequence containing references to
425 * Get a list of accessible desktops.
428 static Accessibility_DesktopSeq *
429 impl_accessibility_registry_get_desktop_list (PortableServer_Servant servant,
430 CORBA_Environment * ev)
432 /* TODO: implement support for multiple virtual desktops */
433 return (Accessibility_DesktopSeq *) NULL;
437 impl_accessibility_registry_get_device_event_controller (PortableServer_Servant servant,
438 CORBA_Environment * ev)
440 /* TODO: not yet implemented! */
441 return CORBA_OBJECT_NIL;
445 impl_registry_notify_event (PortableServer_Servant servant,
446 const Accessibility_Event *e,
447 CORBA_Environment *ev)
449 Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
450 EventTypeStruct etype;
452 parse_event_type (&etype, e->type);
457 registry_notify_listeners (registry->focus_listeners, e, ev);
459 case (ETYPE_WINDOW) :
460 registry_notify_listeners (registry->window_listeners, e, ev);
462 case (ETYPE_TOOLKIT) :
463 registry_notify_listeners (registry->toolkit_listeners, e, ev);
468 bonobo_object_release_unref (e->target, ev);
472 registry_notify_listeners ( GList *listeners,
473 const Accessibility_Event *e,
474 CORBA_Environment *ev)
479 EventTypeStruct etype;
481 parse_event_type (&etype, e->type);
482 minor_hash = g_str_hash (etype.minor);
483 len = g_list_length (listeners);
485 for (n=0; n<len; ++n)
487 ls = (ListenerStruct *) g_list_nth_data (listeners, n);
489 fprintf(stderr, "event hashes: %lx %lx\n", ls->event_type_hash, etype.hash);
491 if ((ls->event_type_hash == etype.hash) || (ls->event_type_hash == minor_hash))
494 fprintf(stderr, "notifying listener #%d\n", n);
495 fprintf(stderr, "event name %s\n", Accessibility_Accessible__get_name(e->target, ev));
497 bonobo_object_dup_ref ( e->target, ev);
498 Accessibility_EventListener_notifyEvent ((Accessibility_EventListener) ls->listener,
501 if (ev->_major != CORBA_NO_EXCEPTION) {
503 ("Accessibility app error: exception during event notification: %s\n"),
504 CORBA_exception_id(ev));
512 registry_class_init (RegistryClass *klass)
514 GObjectClass * object_class = (GObjectClass *) klass;
515 POA_Accessibility_Registry__epv *epv = &klass->epv;
517 registry_parent_class = g_type_class_ref (LISTENER_TYPE);
519 object_class->finalize = registry_object_finalize;
521 epv->registerApplication = impl_accessibility_registry_register_application;
522 epv->deregisterApplication = impl_accessibility_registry_deregister_application;
523 epv->registerGlobalEventListener = impl_accessibility_registry_register_global_event_listener;
524 epv->deregisterGlobalEventListener = impl_accessibility_registry_deregister_global_event_listener;
525 epv->deregisterGlobalEventListenerAll = impl_accessibility_registry_deregister_global_event_listener_all;
526 epv->getDesktopCount = impl_accessibility_registry_get_desktop_count;
527 epv->getDesktop = impl_accessibility_registry_get_desktop;
528 epv->getDesktopList = impl_accessibility_registry_get_desktop_list;
529 epv->getDeviceEventController = impl_accessibility_registry_get_device_event_controller;
530 ((ListenerClass *) klass)->epv.notifyEvent = impl_registry_notify_event;
534 registry_init (Registry *registry)
536 registry->focus_listeners = NULL;
537 registry->window_listeners = NULL;
538 registry->toolkit_listeners = NULL;
539 registry->applications = NULL;
540 registry->desktop = desktop_new();
544 registry_get_type (void)
546 static GType type = 0;
549 static const GTypeInfo tinfo = {
550 sizeof (RegistryClass),
551 (GBaseInitFunc) NULL,
552 (GBaseFinalizeFunc) NULL,
553 (GClassInitFunc) registry_class_init,
554 (GClassFinalizeFunc) NULL,
555 NULL, /* class data */
558 (GInstanceInitFunc) registry_init,
559 NULL /* value table */
562 * Here we use bonobo_type_unique instead of
563 * gtk_type_unique, this auto-generates a load of
564 * CORBA structures for us. All derived types must
565 * use bonobo_type_unique.
567 type = bonobo_type_unique (
569 POA_Accessibility_Registry__init,
571 G_STRUCT_OFFSET (RegistryClass, epv),
583 REGISTRY (g_object_new (registry_get_type (), NULL));