EventTypeMajor major;
char * minor;
char * detail;
+ guint hash;
} EventTypeStruct;
+typedef struct {
+ Accessibility_EventListener listener;
+ guint event_type_hash;
+ EventTypeMajor event_type_major;
+} ListenerStruct;
+
+/* static function prototypes */
+static void registry_notify_listeners ( GList *listeners,
+ const Accessibility_Event *e,
+ CORBA_Environment *ev);
/*
* Implemented GObject::finalize
return ((diff < 0) ? -1 : ((diff > 0) ? 1 : 0));
}
+static gboolean
+toolkit_listener (GSignalInvocationHint *signal_hint, guint n_param_value,
+ const GValue *param_values, gpointer data)
+{
+ ;
+ return FALSE;
+}
+
+static void
+register_with_toolkit (EventTypeStruct *etype)
+{
+ guint listener_id =
+ atk_add_global_event_listener (toolkit_listener, g_strconcat (etype->minor, etype->detail, NULL));
+}
+
+static gint
+compare_listener_hash (gconstpointer p1, gconstpointer p2)
+{
+ return (((ListenerStruct *)p2)->event_type_hash - ((ListenerStruct *)p1)->event_type_hash);
+}
+
static void
parse_event_type (EventTypeStruct *etype, char *event_name)
{
- etype->major = ETYPE_FOCUS;
+ static gunichar delimiter = 0;
+ char * major_delim_char;
+ char * minor_delim_char;
+ guint nbytes = 0;
+
+ if (!delimiter)
+ {
+ delimiter = g_utf8_get_char (":");
+ }
+
+ major_delim_char = g_utf8_strchr (event_name, (gssize) 32, delimiter);
+ minor_delim_char = g_utf8_strrchr (event_name, (gssize) 255, delimiter);
+
+ nbytes = (guint)((gint64) minor_delim_char -
+ (gint64) major_delim_char);
+
+ fprintf (stderr, "nbytes = %ld\n", (long) nbytes);
+ if (!g_ascii_strncasecmp (event_name, "focus:", 6))
+ {
+ etype->major = ETYPE_FOCUS;
+ }
+ else if (!g_ascii_strncasecmp (event_name, "window:", 7))
+ {
+ etype->major = ETYPE_WINDOW;
+ }
+ else
+ {
+ etype->major = ETYPE_TOOLKIT;
+ }
+
+ if (major_delim_char)
+ {
+ etype->minor = g_strndup (major_delim_char, nbytes);
+ etype->hash = g_str_hash (major_delim_char);
+ }
+ else
+ {
+ etype->minor = g_strdup ("");
+ etype->hash = g_str_hash ("");
+ }
+ if (major_delim_char != minor_delim_char)
+ {
+ etype->detail = g_strdup (minor_delim_char);
+ }
+ else
+ {
+ etype->detail = g_strdup ("");
+ }
+
+
+ /* TODO: don't forget to free the strings from caller when done ! */
}
/**
/**
* TODO:
*
- * distinguish between event types
* register with app toolkits only for requested event types
- * maintain list of requested types and number of listeners
- * find non-strcmp method of matching event types to listeners
*
**/
Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
/* fprintf(stderr, "registering %x/%x\n", listener, *listener); */
+ ListenerStruct *ls = g_malloc (sizeof (ListenerStruct));
+
EventTypeStruct etype;
+
+ /* parse, check major event type and add listener accordingly */
parse_event_type (&etype, event_name);
+ ls->event_type_hash = etype.hash;
+ ls->event_type_major = etype.major;
- /* parse, check major event type */
switch (etype.major)
{
case (ETYPE_FOCUS) :
+ ls->listener = CORBA_Object_duplicate (listener, ev);
+ registry->focus_listeners =
+ g_list_append (registry->focus_listeners, ls);
break;
case (ETYPE_WINDOW) :
+ /* Support for Window Manager Events is not yet implemented */
break;
case (ETYPE_TOOLKIT) :
+ ls->listener = CORBA_Object_duplicate (listener, ev);
+ registry->toolkit_listeners =
+ g_list_append (registry->toolkit_listeners, ls);
+ register_with_toolkit (&etype);
break;
default:
break;
}
+}
+
+/*
+ * CORBA Accessibility::Registry::deregisterGlobalEventListenerAll method implementation
+ */
+static void
+impl_accessibility_registry_deregister_global_event_listener_all
+ (PortableServer_Servant servant,
+ Accessibility_EventListener listener,
+ CORBA_Environment *ev)
+{
+ Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
+ GList *list = g_list_find_custom (registry->focus_listeners, listener, compare_object_hash);
+
+ /*
+ * TODO : de-register with toolkit if the last instance of a listener
+ * to a particular toolkit event type has been deregistered.
+ */
- registry->listeners = g_list_append (registry->listeners, CORBA_Object_duplicate(listener, ev));
- /* fprintf(stderr, "there are now %d listeners registered.\n", g_list_length(registry->listeners)); */
- /* should use hashtable and CORBA_Object_hash (...) */
+ while (list)
+ {
+ fprintf (stderr, "deregistering listener\n");
+ registry->focus_listeners = g_list_delete_link (registry->focus_listeners, list);
+ list = g_list_find_custom (registry->focus_listeners, listener, compare_object_hash);
+ }
+ list = g_list_find_custom (registry->toolkit_listeners, listener, compare_object_hash);
+ while (list)
+ {
+ fprintf (stderr, "deregistering listener\n");
+ registry->toolkit_listeners = g_list_delete_link (registry->toolkit_listeners, list);
+ list = g_list_find_custom (registry->toolkit_listeners, listener, compare_object_hash);
+ }
}
/*
impl_accessibility_registry_deregister_global_event_listener
(PortableServer_Servant servant,
Accessibility_EventListener listener,
+ const CORBA_char * event_name,
CORBA_Environment *ev)
{
Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
- /* TODO: this won't work since 'listener' is a duplicate ref */
- registry->listeners = g_list_remove (registry->listeners, listener);
- /* fprintf(stderr, "deregister\n"); */
+ ListenerStruct ls;
+ EventTypeStruct etype;
+ GList *list;
+ GList **listeners;
+
+ parse_event_type (&etype, event_name);
+ switch (etype.major)
+ {
+ case (ETYPE_FOCUS) :
+ listeners = ®istry->focus_listeners;
+ break;
+ case (ETYPE_WINDOW) :
+ /* Support for Window Manager Events is not yet implemented */
+ break;
+ case (ETYPE_TOOLKIT) :
+ listeners = ®istry->toolkit_listeners;
+ break;
+ default:
+ break;
+ }
+
+ ls.event_type_hash = etype.hash;
+ list = g_list_find_custom (*listeners, &ls, compare_listener_hash);
+
+ while (list)
+ {
+ fprintf (stderr, "deregistering listener\n");
+ *listeners = g_list_delete_link (*listeners, list);
+ list = g_list_find_custom (*listeners, &ls, compare_listener_hash);
+ }
}
const Accessibility_Event *e,
CORBA_Environment *ev)
{
- int n;
- int len;
Registry *registry = REGISTRY (bonobo_object_from_servant (servant));
+ EventTypeStruct etype;
- /**
- * TODO:
- *
- * distinguish between event types
- * find non-strcmp method of matching event types to listeners
- *
- **/
+ parse_event_type (&etype, e->type);
+
+ switch (etype.major)
+ {
+ case (ETYPE_FOCUS) :
+ registry_notify_listeners (registry->focus_listeners, e, ev);
+ break;
+ case (ETYPE_WINDOW) :
+ registry_notify_listeners (registry->window_listeners, e, ev);
+ break;
+ case (ETYPE_TOOLKIT) :
+ registry_notify_listeners (registry->toolkit_listeners, e, ev);
+ break;
+ default:
+ break;
+ }
+ bonobo_object_release_unref (e->target, ev);
+}
- len = g_list_length (registry->listeners);
- /* fprintf(stderr, "%d listeners registered\n", len); */
+static void
+registry_notify_listeners ( GList *listeners,
+ const Accessibility_Event *e,
+ CORBA_Environment *ev)
+{
+ int n;
+ int len;
+ ListenerStruct *ls;
+ EventTypeStruct etype;
+ guint minor_hash;
+ parse_event_type (&etype, e->type);
+ minor_hash = g_str_hash (etype.minor);
+ len = g_list_length (listeners);
for (n=0; n<len; ++n)
{
+ ls = (ListenerStruct *) g_list_nth_data (listeners, n);
#ifdef SPI_DEBUG
- fprintf(stderr, "notifying listener #%d\n", n);
- fprintf(stderr, "event name %s\n", Accessibility_Accessible__get_name(e->target, ev));
+ fprintf(stderr, "event hashes: %lx %lx\n", ls->event_type_hash, etype.hash);
#endif
- Accessibility_EventListener_notifyEvent (
- (Accessibility_EventListener) g_list_nth_data (registry->listeners, n),
- e,
- ev);
+ if ((ls->event_type_hash == etype.hash) || (ls->event_type_hash == minor_hash))
+ {
+#ifdef SPI_DEBUG
+ fprintf(stderr, "notifying listener #%d\n", n);
+ fprintf(stderr, "event name %s\n", Accessibility_Accessible__get_name(e->target, ev));
+#endif
+ bonobo_object_dup_ref ( e->target, ev);
+ Accessibility_EventListener_notifyEvent ((Accessibility_EventListener) ls->listener,
+ e,
+ ev);
+ if (ev->_major != CORBA_NO_EXCEPTION) {
+ fprintf(stderr,
+ ("Accessibility app error: exception during event notification: %s\n"),
+ CORBA_exception_id(ev));
+ exit(-1);
+ }
+ }
}
}
epv->deregisterApplication = impl_accessibility_registry_deregister_application;
epv->registerGlobalEventListener = impl_accessibility_registry_register_global_event_listener;
epv->deregisterGlobalEventListener = impl_accessibility_registry_deregister_global_event_listener;
+ epv->deregisterGlobalEventListenerAll = impl_accessibility_registry_deregister_global_event_listener_all;
epv->getDesktopCount = impl_accessibility_registry_get_desktop_count;
epv->getDesktop = impl_accessibility_registry_get_desktop;
epv->getDesktopList = impl_accessibility_registry_get_desktop_list;
static void
registry_init (Registry *registry)
{
- registry->listeners = NULL;
+ registry->focus_listeners = NULL;
+ registry->window_listeners = NULL;
+ registry->toolkit_listeners = NULL;
registry->applications = NULL;
registry->desktop = desktop_new();
}
NULL /* value table */
};
/*
- * Here we use bonobo_x_type_unique instead of
+ * Here we use bonobo_type_unique instead of
* gtk_type_unique, this auto-generates a load of
* CORBA structures for us. All derived types must
- * use bonobo_x_type_unique.
+ * use bonobo_type_unique.
*/
type = bonobo_type_unique (
PARENT_TYPE,
projects / platform / core / uifw / at-spi2-atk.git / blobdiff