+ }
+ return ret;
+}
+
+static gboolean
+registry_defer_on_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+ gboolean defer = FALSE;
+ if ((ctx->etype.type_cat == ETYPE_WINDOW) &&
+ (ctx->etype.major == _deactivate_quark)) {
+ defer = TRUE;
+ registry_start_queue (registry);
+ }
+ /* defer all object:state-change events after a window:deactivate */
+ else if ((ctx->etype.type_cat == ETYPE_FOCUS) ||
+ ((ctx->etype.type_cat == ETYPE_OBJECT) &&
+ (ctx->etype.major == _state_quark))) {
+ defer = TRUE;
+ }
+ return defer;
+}
+
+static gboolean
+registry_queue_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+ NotifyContext *q_ctx = registry_clone_notify_context (ctx);
+#ifdef SPI_QUEUE_DEBUG
+ if (q_ctx->etype.type_cat != ETYPE_MOUSE)
+ fprintf (stderr, "push! %s %p\n", q_ctx->etype.event_name, q_ctx);
+#endif
+ if (registry->is_queueing)
+ {
+ g_queue_push_head (registry->deferred_event_queue, q_ctx);
+
+ return FALSE;
+ }
+ else
+ {
+ bonobo_object_release_unref (q_ctx->source, NULL);
+ CORBA_free ((void *)q_ctx->etype.event_name);
+ CORBA_free ((void *)q_ctx->e_out.type);
+ g_free (q_ctx);
+ return TRUE;
+ }
+}
+
+/**
+ * Dispose of event in one of several ways:
+ * 1) discard;
+ * 2) initiate queuing and push onto queue (below)
+ * 3) push on existing queue to either pop on timeout or on subsequent event
+ * 4) pass-through immediately
+ * 5) pass-through, discarding queued events
+ * 6) emit queued events and then pass through
+ **/
+static gboolean
+registry_filter_event (SpiRegistry *registry, NotifyContext *ctx,
+ CORBA_Environment *ev)
+{
+ g_assert (ctx != NULL);
+
+ if (registry_discard_event (registry, ctx))
+ return FALSE;
+
+ if (registry_defer_on_event (registry, ctx)) { /* #2, #3 */
+ if (registry->is_queueing) {
+ return registry_queue_event (registry, ctx);
+ }
+ else { /* #4a */
+ return TRUE;
+ }
+ }
+ else if (registry_reset_on_event (registry, ctx)) { /* #5, #6 */
+ gboolean discard = registry_discard_on_event (registry, ctx);
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "event %s caused reset, discard=%d\n",
+ ctx->etype.event_name, (int) discard);
+ {
+ struct timeval tp;
+ gettimeofday (&tp, NULL);
+ fprintf (stderr, "event at %i.%.6i\n", tp.tv_sec, tp.tv_usec);
+ }
+#endif
+ registry_flush_event_queue (registry, discard, ev);
+ return (discard ? FALSE : TRUE);
+ }
+ else { /* #4b */
+ return TRUE;
+ }
+}
+
+static void
+impl_registry_notify_event (PortableServer_Servant servant,
+ const Accessibility_Event *e,
+ CORBA_Environment *ev)
+{
+ SpiRegistry *registry;
+ NotifyContext ctx;
+ static int level = 0;
+
+ level++;
+ registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
+
+ parse_event_type (&ctx.etype, e->type);
+
+ ctx.ev = ev;
+ ctx.e_out = *e;
+ ctx.source = e->source;
+
+#ifdef SPI_QUEUE_DEBUG
+ if (ctx.etype.type_cat != ETYPE_MOUSE)
+ fprintf (stderr, "filter! %s level: %d\n", ctx.etype.event_name, level);
+#endif
+ if (registry_filter_event (registry, &ctx, ev)) {
+#ifdef SPI_QUEUE_DEBUG
+ if (ctx.etype.type_cat != ETYPE_MOUSE)
+ fprintf (stderr, "emit! %s level: %d\n", ctx.etype.event_name, level);
+#endif
+ registry_emit_event (registry, &ctx);
+ }
+ level--;
+}
+
+static void
+spi_registry_class_init (SpiRegistryClass *klass)
+{
+ GObjectClass * object_class = (GObjectClass *) klass;
+ POA_Accessibility_Registry__epv *epv = &klass->epv;
+
+ spi_registry_parent_class = g_type_class_ref (SPI_LISTENER_TYPE);
+
+ object_class->finalize = spi_registry_object_finalize;
+
+ klass->parent_class.epv.notifyEvent = impl_registry_notify_event;
+
+ epv->registerApplication = impl_accessibility_registry_register_application;
+ 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->getDeviceEventController = impl_accessibility_registry_get_device_event_controller;
+ epv->getDesktopCount = impl_accessibility_registry_get_desktop_count;
+ epv->getDesktop = impl_accessibility_registry_get_desktop;
+ epv->getDesktopList = impl_accessibility_registry_get_desktop_list;
+ _deactivate_quark = g_quark_from_static_string ("deactivate");
+ _activate_quark = g_quark_from_static_string ("activate");
+ _state_quark = g_quark_from_static_string ("state-changed");
+ _state_changed_focused_quark = g_quark_from_static_string ("state-changedfocused");
+}