[gnome-photos/wip/uajain/de_dup: 3/4] tracker-controller: Get remote objects cursor

[Umang Jain <uajain src gnome org>]

commit 102782cc74754b785078f15321bb9d3f4da337bd
Author: Umang Jain <mailumangjain gmail com>
Date:   Sat Aug 20 22:32:46 2016 +0530

    tracker-controller: Get remote objects cursor
    
    Check if there are more remote objects inserted in
    tracker's database and pass the cursor to item-manager
    so that it can hide it in the overview mode.

 src/photos-tracker-controller.c |   47 +++++++++++++++++++++++++++++++++++++++
 1 files changed, 47 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-tracker-controller.c b/src/photos-tracker-controller.c
index bfb766b..47be734 100644
--- a/src/photos-tracker-controller.c
+++ b/src/photos-tracker-controller.c
@@ -328,6 +328,31 @@ photos_tracker_controller_source_object_added_removed (PhotosTrackerController *
 
 
 static void
+photos_tracker_controller_get_remote_objects_cursor (GObject *source_object, GAsyncResult *res, gpointer 
user_data)
+{
+  PhotosTrackerController *self = PHOTOS_TRACKER_CONTROLLER (user_data);
+  PhotosTrackerControllerPrivate *priv;
+  TrackerSparqlConnection *connection = TRACKER_SPARQL_CONNECTION (source_object);
+  GError *error;
+  TrackerSparqlCursor *cursor;
+
+  priv = photos_tracker_controller_get_instance_private (self);
+
+  error = NULL;
+  cursor = tracker_sparql_connection_query_finish (connection, res, &error);
+  if (error != NULL)
+    {
+      photos_tracker_controller_query_finished (self, error);
+      g_error_free (error);
+      return;
+    }
+
+  photos_item_manager_hide_remote_objects (PHOTOS_ITEM_MANAGER (priv->item_mngr), cursor);
+  g_object_unref (cursor);
+}
+
+
+static void
 photos_tracker_controller_window_mode_changed (PhotosTrackerController *self,
                                                PhotosWindowMode mode,
                                                PhotosWindowMode old_mode)
@@ -338,6 +363,28 @@ photos_tracker_controller_window_mode_changed (PhotosTrackerController *self,
 
   if (priv->refresh_pending && mode == priv->mode)
     photos_tracker_controller_refresh_for_source (self);
+
+  if (mode == PHOTOS_WINDOW_MODE_OVERVIEW)
+    {
+       /* We would need something better here to know if the item_mngr is ready to hide remote objects
+        * The problem is: window-mode-changed is also emitted at startup of application so hiding remote
+        * objects before item_mngr is ready with it's items, gives segfault.
+        *
+        * May be : write a logic to detect this kind of state ?
+        */
+       if (!photos_tracker_controller_get_query_status (self))
+       {
+         PhotosQuery *query = photos_query_builder_get_remote_objects_with_related_to (state);
+         photos_tracker_queue_select (priv->queue,
+                                      query->sparql,
+                                      NULL,
+                                      photos_tracker_controller_get_remote_objects_cursor,
+                                      g_object_ref (self),
+                                      g_object_unref);
+         photos_query_free (query);
+       }
+    }
+
 }