Revert "efl_io_model: remove custom counting logic"

Summary:
This reverts commit d794a0d3d9.

This breaks Efl_Io_Model.

Reviewers: cedric, zmike

Reviewed By: zmike

Subscribers: #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D10003

src/lib/eio/efl_io_model.c

@@ -712,6 +712,63 @@ _efl_io_model_efl_model_property_set(Eo *obj,
    return efl_loop_future_rejected(obj, err);
 }
 
+static void
+_efl_io_model_children_list(void *data, Eina_Array *entries)
+{
+   Eina_File_Direct_Info *info;
+   Efl_Model *obj = data;
+   Efl_Io_Model_Data *pd;
+   Efl_Model_Children_Event cevt = { 0 };
+   Eina_Array_Iterator iterator;
+   unsigned int i;
+
+   pd = efl_data_scope_get(obj, EFL_IO_MODEL_CLASS);
+   if (!pd) return ;
+
+   EINA_ARRAY_ITER_NEXT(entries, i, info, iterator)
+     {
+        Efl_Io_Model_Info *mi;
+
+        if (_already_added(pd, info->path)) continue;
+
+        if (pd->filter.cb)
+          {
+             if (!pd->filter.cb(pd->filter.data, obj, info))
+               continue ;
+          }
+
+        mi = calloc(1, sizeof (Efl_Io_Model_Info));
+        if (!mi) continue ;
+
+        mi->path_length = info->path_length;
+        mi->path = eina_stringshare_add(info->path);
+
+        mi->name_start = info->name_start;
+        mi->name_length = info->name_length;
+        mi->type = _efl_io_model_info_type_get(info, NULL);
+        mi->parent_ref = EINA_FALSE;
+        mi->child_ref = EINA_TRUE;
+
+        cevt.index = eina_list_count(pd->files);
+        cevt.child = NULL;
+
+        pd->files = eina_list_append(pd->files, mi);
+
+        efl_event_callback_call(obj, EFL_MODEL_EVENT_CHILD_ADDED, &cevt);
+     }
+
+   efl_event_callback_call(obj, EFL_MODEL_EVENT_CHILDREN_COUNT_CHANGED, NULL);
+}
+
+static void
+_efl_io_model_children_list_cleanup(Eo *o EINA_UNUSED, void *data, const Eina_Future *dead_future EINA_UNUSED)
+{
+   Efl_Io_Model_Data *pd = data;
+
+   pd->request.listing = NULL;
+   pd->listed = EINA_TRUE;
+}
+
 /**
  * Children Count Get
  */
@@ -728,6 +785,30 @@ _efl_io_model_efl_model_children_count_get(const Eo *obj, Efl_Io_Model_Data *pd)
      {
         _eio_build_st(obj, pd);
      }
+   else if (!pd->listed &&
+            !pd->request.listing &&
+            pd->info->type == EINA_FILE_DIR)
+     {
+        Efl_Io_Manager *iom;
+        Eina_Future *f;
+
+        iom = efl_provider_find(obj, EFL_IO_MANAGER_CLASS);
+        if (!iom)
+          {
+             ERR("Could not find an Efl.Io.Manager on %p.", obj);
+             return 0;
+          }
+
+        f = efl_io_manager_direct_ls(iom, pd->path, EINA_FALSE,
+                                     (void*) obj, _efl_io_model_children_list, NULL);
+
+        //start monitoring before listing is done
+        //we will filter later on if we already published a file or not
+        _efl_io_model_efl_model_monitor_add(pd);
+        pd->request.listing = efl_future_then(obj, f,
+                                              .free = _efl_io_model_children_list_cleanup,
+                                              .data = pd);
+     }
 
    return eina_list_count(pd->files);
 }