X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fat-spi2-atk.git;a=blobdiff_plain;f=atk-adaptor%2Faccessible-cache.c;h=3a30b514114030bd50a60adf6a986554207c67c4;hp=79a369fa64fabb1ca2fb32486209cbfd5430c917;hb=d1e52eb847dcabf7a2be07dbd71cfcb4e0805306;hpb=b92c3032a60413834b85318e05bc9d0c30f0cefd

diff --git a/atk-adaptor/accessible-cache.c b/atk-adaptor/accessible-cache.c
index 79a369f..3a30b51 100644
--- a/atk-adaptor/accessible-cache.c
+++ b/atk-adaptor/accessible-cache.c
@@ -125,8 +125,8 @@ spi_cache_init (SpiCache * cache)
 
   add_subtree (cache, spi_global_app_data->root);
 
-  atk_add_global_event_listener (child_added_listener,
-                                 "Gtk:AtkObject:children-changed");
+  cache->child_added_listener = atk_add_global_event_listener (child_added_listener,
+                                                               "Gtk:AtkObject:children-changed"); 
 
   g_signal_connect (G_OBJECT (spi_global_app_data->root),
                     "children-changed::add",
@@ -141,7 +141,15 @@ spi_cache_finalize (GObject * object)
   while (!g_queue_is_empty (cache->add_traversal))
     g_object_unref (G_OBJECT (g_queue_pop_head (cache->add_traversal)));
   g_queue_free (cache->add_traversal);
-  g_free (cache->objects);
+  g_hash_table_unref (cache->objects);
+
+  g_signal_handlers_disconnect_by_func (spi_global_register,
+                                        (GCallback) remove_object, cache);
+
+  g_signal_handlers_disconnect_by_func (G_OBJECT (spi_global_app_data->root),
+                                        (GCallback) toplevel_added_listener, NULL);
+
+  atk_remove_global_event_listener (cache->child_added_listener);
 
   G_OBJECT_CLASS (spi_cache_parent_class)->finalize (object);
 }
@@ -171,6 +179,11 @@ remove_object (GObject * source, GObject * gobj, gpointer data)
       g_signal_emit (cache, cache_signals [OBJECT_REMOVED], 0, gobj);
       g_hash_table_remove (cache->objects, gobj);
     }
+  else
+    {
+      g_queue_remove (cache->add_traversal, gobj);
+      g_object_unref (gobj);
+    }
 }
 
 static void
@@ -267,21 +280,30 @@ add_pending_items (gpointer data)
   while (!g_queue_is_empty (cache->add_traversal))
     {
       AtkStateSet *set;
-      
+
+      /* cache->add_traversal holds a ref to current */
       current = g_queue_pop_head (cache->add_traversal);
       set = atk_object_ref_state_set (current);
 
-      if (!atk_state_set_contains_state (set, ATK_STATE_TRANSIENT))
+      if (set && !atk_state_set_contains_state (set, ATK_STATE_TRANSIENT))
         {
+          /* transfer the ref into to_add */
 	  g_queue_push_tail (to_add, current);
           if (!spi_cache_in (cache, G_OBJECT (current)) &&
-              !atk_state_set_contains_state  (set, ATK_STATE_MANAGES_DESCENDANTS))
+              !atk_state_set_contains_state  (set, ATK_STATE_MANAGES_DESCENDANTS) &&
+              !atk_state_set_contains_state  (set, ATK_STATE_DEFUNCT))
             {
               append_children (current, cache->add_traversal);
             }
         }
+      else
+        {
+          /* drop the ref for the removed object */
+          g_object_unref (current);
+        }
 
-      g_object_unref (set);
+      if (set)
+        g_object_unref (set);
     }
 
   while (!g_queue_is_empty (to_add))
@@ -309,9 +331,7 @@ child_added_listener (GSignalInvocationHint * signal_hint,
                       const GValue * param_values, gpointer data)
 {
   SpiCache *cache = spi_global_cache;
-
   AtkObject *accessible;
-  AtkObject *child;
 
   const gchar *detail = NULL;
 
@@ -340,11 +360,12 @@ child_added_listener (GSignalInvocationHint * signal_hint,
           gpointer child;
           int index = g_value_get_uint (param_values + 1);
           child = g_value_get_pointer (param_values + 2);
+          if (!child)
+            {
+              g_static_rec_mutex_unlock (&cache_mutex);
+              return;
+            }
 
-          if (!ATK_IS_OBJECT (child))
-           {
-             child = atk_object_ref_accessible_child (accessible, index);
-           }
           g_object_ref (child);
           g_queue_push_tail (cache->add_traversal, child);
 
@@ -411,6 +432,9 @@ spi_cache_foreach (SpiCache * cache, GHFunc func, gpointer data)
 gboolean
 spi_cache_in (SpiCache * cache, GObject * object)
 {
+  if (!cache)
+    return FALSE;
+
   if (g_hash_table_lookup_extended (cache->objects,
                                     object,
                                     NULL,