X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=registryd%2Fregistry.c;h=31dbb81d0debfe7493111326aed39d3c6230262d;hb=99f0f510b665fb2298bc8cdd6613e384e445406b;hp=6ae9ed2cdb57e07804bec348d1a1226c4a110b20;hpb=3f3795dd1c05e3d7f106b1bee1d1f3baf3724569;p=platform%2Fcore%2Fuifw%2Fat-spi2-atk.git

diff --git a/registryd/registry.c b/registryd/registry.c
index 6ae9ed2..31dbb81 100644
--- a/registryd/registry.c
+++ b/registryd/registry.c
@@ -25,6 +25,7 @@
 
 #undef SPI_LISTENER_DEBUG
 #undef SPI_DEBUG
+#undef SPI_QUEUE_DEBUG
 
 #include <config.h>
 #ifdef SPI_DEBUG
@@ -41,6 +42,11 @@
 /* A pointer to our parent object class */
 static SpiListenerClass *spi_registry_parent_class;
 
+static GQuark _deactivate_quark = 0;
+static GQuark _activate_quark = 0;
+static GQuark _state_quark = 0;
+static GQuark _state_changed_focused_quark = 0;
+
 int _dbg = 0;
 
 typedef enum {
@@ -152,8 +158,8 @@ static void
 spi_registry_object_finalize (GObject *object)
 {
   DBG (1, g_warning ("spi_registry_object_finalize called\n"));
+  g_object_unref (SPI_REGISTRY (object)->de_controller);
 
-  /* TODO: unref deviceeventcontroller, which disconnects key listener */
   G_OBJECT_CLASS (spi_registry_parent_class)->finalize (object);
 }
 
@@ -626,27 +632,278 @@ notify_listeners_cb (GList * const *list, gpointer user_data)
 }
 
 static void
+registry_emit_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+  GList       **list = get_listener_list (registry, ctx->etype.type_cat);
+
+  if (list && *list)
+    {
+    
+      spi_re_entrant_list_foreach (list, notify_listeners_cb, ctx);
+    }
+}
+
+static NotifyContext*
+registry_clone_notify_context (NotifyContext *ctx)
+{
+  NotifyContext *new_ctx = g_new0 (NotifyContext, 1);
+
+  new_ctx->ev = NULL;
+  new_ctx->source = bonobo_object_dup_ref (ctx->source, NULL); 
+  new_ctx->etype.event_name = CORBA_string_dup (ctx->etype.event_name);
+  new_ctx->etype.type_cat = ctx->etype.type_cat;
+  new_ctx->etype.major = ctx->etype.major;
+  new_ctx->etype.minor = ctx->etype.minor;
+  new_ctx->etype.detail = ctx->etype.detail;
+  new_ctx->e_out.type = CORBA_string_dup (ctx->e_out.type);
+  new_ctx->e_out.source = ctx->e_out.source;
+  new_ctx->e_out.detail1 = ctx->e_out.detail1;
+  new_ctx->e_out.detail2 = ctx->e_out.detail2;
+  CORBA_any__copy (&(new_ctx->e_out.any_data), &(ctx->e_out.any_data));
+  return new_ctx;
+}
+
+static void
+registry_flush_event_queue (SpiRegistry       *registry,
+			    gboolean      discard,
+			    CORBA_Environment *ev)
+{
+  NotifyContext *q_ctx;
+  while (!g_queue_is_empty (registry->deferred_event_queue)) {
+    q_ctx = g_queue_pop_tail (registry->deferred_event_queue);
+#ifdef SPI_QUEUE_DEBUG
+    fprintf (stderr, "%s! %s [n=%d] %p\n", (discard ? "discard" : "pop"), 
+	     q_ctx->etype.event_name, 
+	     (int) registry->deferred_event_queue->length, q_ctx);
+#endif
+    if (!discard)  {
+      q_ctx->ev = ev;
+      registry_emit_event (registry, q_ctx);
+    }
+    if (discard &&
+	(q_ctx->etype.type_cat == ETYPE_OBJECT) && 
+	(q_ctx->etype.major == _state_quark) &&
+	(q_ctx->etype.minor == _state_changed_focused_quark)) {
+        registry->focus_object = q_ctx->source;
+#ifdef SPI_QUEUE_DEBUG
+        fprintf (stderr, "discard!: set focus_object %p\n", registry->focus_object);
+#endif
+    }
+    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);
+  }
+  registry->is_queueing = FALSE;
+}
+
+static gboolean
+registry_timeout_flush_queue (gpointer data)
+{
+  SpiRegistry *registry = data;
+  CORBA_Environment ev;
+#ifdef SPI_QUEUE_DEBUG
+  fprintf (stderr, "timeout! flushing queue...\n");
+#endif
+  CORBA_exception_init (&ev);
+  registry->queue_handler_id = 0;
+  registry_flush_event_queue (registry, FALSE, &ev);
+  return FALSE;
+}
+
+static gboolean
+registry_discard_on_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+  gboolean retval = FALSE;
+  NotifyContext *q_ctx = g_queue_peek_tail (registry->deferred_event_queue);
+  if ((q_ctx != NULL) &&
+      (ctx->etype.type_cat == ETYPE_WINDOW) && 
+      (ctx->etype.major == _activate_quark)) {
+    if (CORBA_Object_is_equivalent (ctx->source, q_ctx->source, NULL)) {
+      retval = TRUE;
+    }
+  }
+  return retval;
+}
+
+static gboolean
+registry_reset_on_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+  return (ctx->etype.type_cat == ETYPE_WINDOW) ? TRUE : FALSE;
+}
+
+#ifdef SPI_QUEUE_DEBUG
+#include <sys/time.h>
+#endif
+
+static void
+registry_start_queue (SpiRegistry *registry)
+{
+#ifdef SPI_QUEUE_DEBUG
+    struct timeval tp;
+    gettimeofday (&tp, NULL);
+    fprintf (stderr, "start queueing at %i.%.6i\n", tp.tv_sec, tp.tv_usec);
+#endif
+    if (registry->queue_handler_id != 0)
+      g_source_remove (registry->queue_handler_id);
+       
+    if (registry->focus_object)
+      {
+#ifdef SPI_QUEUE_DEBUG
+        fprintf (stderr, "registry_start_queue: release focus_object %p\n", registry->focus_object);
+#endif
+        bonobo_object_release_unref (registry->focus_object, NULL);
+        registry->focus_object = NULL;
+      }
+    registry->queue_handler_id = g_timeout_add_full (G_PRIORITY_HIGH_IDLE, 
+						     registry->exit_notify_timeout,
+						     registry_timeout_flush_queue, registry, 
+						     NULL);
+    registry->is_queueing = TRUE;
+}
+
+static gboolean
+registry_discard_event (SpiRegistry *registry,  NotifyContext *ctx)
+{
+  gboolean ret = FALSE;
+
+  if (ctx->etype.type_cat == ETYPE_FOCUS)
+    {
+      if (registry->focus_object)
+        {
+          if (CORBA_Object_is_equivalent (registry->focus_object, ctx->source, NULL))
+            {
+              ret = TRUE;
+            }
+#ifdef SPI_QUEUE_DEBUG
+          fprintf (stderr, "registry_discard_event: release focus_object %p\n", registry->focus_object);
+#endif
+          bonobo_object_release_unref (registry->focus_object, NULL);
+          registry->focus_object = NULL;
+        }
+    }
+  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;
-  GList       **list;
   NotifyContext ctx;
+  static int level = 0;
 
+  level++;
   registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
 
   parse_event_type (&ctx.etype, e->type);
 
-  list = get_listener_list (registry, ctx.etype.type_cat);
-
-  if (list && *list)
-    {
-      ctx.ev = ev;
-      ctx.e_out = *e;
-      ctx.source = e->source;
-      spi_re_entrant_list_foreach (list, notify_listeners_cb, &ctx);
-    }
+  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
@@ -670,15 +927,37 @@ spi_registry_class_init (SpiRegistryClass *klass)
   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");
 }
 
 static void
 spi_registry_init (SpiRegistry *registry)
 {
   spi_registry_set_debug (g_getenv ("AT_SPI_DEBUG"));
+  /*
+   * TODO: FIXME, this module makes the foolish assumptions that
+   * registryd uses the same display as the apps, and that the
+   * DISPLAY environment variable is set.
+   */
+  gdk_init (NULL, NULL);
+
   registry->object_listeners = NULL;
   registry->window_listeners = NULL;
   registry->toolkit_listeners = NULL;
+  registry->deferred_event_queue = g_queue_new ();
+  registry->exit_notify_timeout = 200;
+  registry->queue_handler_id  = 0;
+  /*
+   * The focus_object is set when a state-change:focused event is discarded
+   * after a window:deactivate event is received because a window:activate
+   * event has been received for the same window within the timeout period.
+   * The focus object is used to suppress a focus event for that object.
+   * It is released when a window:deactivate event is received.
+   */ 
+  registry->focus_object = NULL;
   registry->desktop = spi_desktop_new ();
   /* Register callback notification for application addition and removal */
   g_signal_connect (G_OBJECT (registry->desktop),
@@ -697,7 +976,7 @@ spi_registry_init (SpiRegistry *registry)
 BONOBO_TYPE_FUNC_FULL (SpiRegistry,
 		       Accessibility_Registry,
 		       PARENT_TYPE,
-		       spi_registry);
+		       spi_registry)
 
 SpiRegistry *
 spi_registry_new (void)