[gnome-todo/gnome-3-26] provider-eds: Make tasklists synchronize offline

[Gitlab Administrative User <gitlab src gnome org>]

commit 55a02ee233ae0ef8a928d7c09e27b1847a88ad0c
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Oct 25 23:26:52 2017 -0200

    provider-eds: Make tasklists synchronize offline
    
    This prevents downloading the same tasklist (which can be huge)
    over and over, saving us some bandwidth.

 plugins/eds/gtd-provider-eds.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/plugins/eds/gtd-provider-eds.c b/plugins/eds/gtd-provider-eds.c
index b7b33e7..f1d998b 100644
--- a/plugins/eds/gtd-provider-eds.c
+++ b/plugins/eds/gtd-provider-eds.c
@@ -74,6 +74,21 @@ task_data_new (GtdProviderEds *provider,
 }
 
 static void
+ensure_offline_sync (GtdProviderEds *self,
+                     ESource        *source)
+{
+  GtdProviderEdsPrivate *priv;
+  ESourceOffline *extension;
+
+  priv = gtd_provider_eds_get_instance_private (self);
+
+  extension = e_source_get_extension (source, E_SOURCE_EXTENSION_OFFLINE);
+  e_source_offline_set_stay_synchronized (extension, TRUE);
+
+  e_source_registry_commit_source (priv->source_registry, source, NULL, NULL, NULL);
+}
+
+static void
 gtd_provider_eds_set_default (GtdProviderEds *self,
                               GtdTaskList    *list)
 {
@@ -191,6 +206,9 @@ gtd_provider_eds_on_client_connected (GObject      *source_object,
   /* creates a new task list */
   list = gtd_task_list_eds_new (GTD_PROVIDER (self), source);
 
+  /* ensure tasklist is cached offline */
+  ensure_offline_sync (self, source);
+
   /* it's not ready until we fetch the list of tasks from client */
   gtd_object_set_ready (GTD_OBJECT (list), FALSE);