manager: Handle refresh in the source directly

Instead of implementing code to refresh sources, let's just
use the ESourceRefresh extension and let Evolution handle that.

src/gcal-manager.c

@@ -345,6 +345,7 @@ on_client_connected (GObject      *source_object,
                      gpointer      user_data)
 {
   GcalManagerUnit *unit;
+  ESourceRefresh *refresh_extension;
   ESourceOffline *offline_extension;
   GcalManager *self;
   ECalClient *client;
@@ -410,6 +411,11 @@ on_client_connected (GObject      *source_object,
   offline_extension = e_source_get_extension (source, E_SOURCE_EXTENSION_OFFLINE);
   e_source_offline_set_stay_synchronized (offline_extension, TRUE);
 
+  /* And also make sure the source is periodically updated */
+  refresh_extension = e_source_get_extension (source, E_SOURCE_EXTENSION_REFRESH);
+  e_source_refresh_set_enabled (refresh_extension, TRUE);
+  e_source_refresh_set_interval_minutes (refresh_extension, 30);
+
   e_source_registry_commit_source (self->source_registry,
                                    source,
                                    NULL,
@@ -423,15 +429,6 @@ on_client_connected (GObject      *source_object,
   GCAL_EXIT;
 }
 
-/**
- * load_source:
- * @self: Manager instance
- * @source: Loaded source
- *
- * Create @GcalManagerUnit data, add it to internal hash of sources.
- * Open/connect to calendars available
- *
- **/
 static void
 load_source (GcalManager *self,
              ESource     *source)

src/gcal-window.c

@@ -157,8 +157,6 @@ struct _GcalWindow
   GtkWidget          *calendar_listbox;
   GtkWidget          *source_dialog;
 
-  gint                refresh_timeout;
-  gint                refresh_timeout_id;
   gint                open_edit_dialog_timeout_id;
 
   GcalTimeFormat      time_format;
@@ -194,8 +192,6 @@ enum
 };
 
 #define SAVE_GEOMETRY_ID_TIMEOUT 100 /* ms */
-#define FAST_REFRESH_TIMEOUT     900000 /* ms */
-#define SLOW_REFRESH_TIMEOUT     3600000 /* ms */
 
 #define gcal_window_add_accelerator(app,action,...) {\
   const gchar *tmp[] = {__VA_ARGS__, NULL};\
@@ -919,27 +915,6 @@ source_changed (GcalWindow *window,
   g_list_free (children);
 }
 
-static gboolean
-refresh_sources (GcalWindow *window)
-{
-  static gint current_timeout = FAST_REFRESH_TIMEOUT;
-
-  /* refresh sources */
-  gcal_manager_refresh (window->manager);
-
-  /* check window state */
-  if (current_timeout != window->refresh_timeout)
-    {
-      current_timeout = window->refresh_timeout;
-
-      window->refresh_timeout_id = g_timeout_add (window->refresh_timeout, (GSourceFunc) refresh_sources, window);
-
-      return G_SOURCE_REMOVE;
-    }
-
-  return G_SOURCE_CONTINUE;
-}
-
 static gboolean
 window_state_changed (GtkWidget *widget,
                       GdkEvent  *event,
@@ -955,9 +930,6 @@ window_state_changed (GtkWidget *widget,
 
   window->is_maximized = state->new_window_state & GDK_WINDOW_STATE_MAXIMIZED;
 
-  /* update timeout time according to the state */
-  window->refresh_timeout = (active ? FAST_REFRESH_TIMEOUT : SLOW_REFRESH_TIMEOUT);
-
   return FALSE;
 }
 
@@ -1238,7 +1210,6 @@ gcal_window_finalize (GObject *object)
   save_geometry (window);
 
   gcal_clear_timeout (&window->open_edit_dialog_timeout_id);
-  gcal_clear_timeout (&window->refresh_timeout_id);
 
   /* If we have a queued event to delete, remove it now */
   if (window->event_to_delete)
@@ -1579,9 +1550,6 @@ gcal_window_init (GcalWindow *self)
   self->views[GCAL_WINDOW_VIEW_MONTH] = self->month_view;
   self->views[GCAL_WINDOW_VIEW_YEAR] = self->year_view;
 
-  /* refresh timeout, first is fast */
-  self->refresh_timeout_id = g_timeout_add (FAST_REFRESH_TIMEOUT, (GSourceFunc) refresh_sources, self);
-
   /* calendars popover */
   gtk_list_box_set_sort_func (GTK_LIST_BOX (self->calendar_listbox),
                               (GtkListBoxSortFunc) calendar_listbox_sort_func,
@@ -1603,6 +1571,7 @@ gcal_window_init (GcalWindow *self)
   g_object_bind_property (self, "manager", self->month_view, "manager", G_BINDING_DEFAULT);
   g_object_bind_property (self, "manager", self->year_view, "manager", G_BINDING_DEFAULT);
   g_object_bind_property (self, "manager", self->quick_add_popover, "manager", G_BINDING_DEFAULT);
+  g_object_bind_property (self, "manager", self->search_popover, "manager", G_BINDING_DEFAULT);
   g_object_bind_property (self, "time-format", self->edit_dialog, "time-format", G_BINDING_DEFAULT);
   g_object_bind_property (self, "time-format", self->search_popover, "time-format", G_BINDING_DEFAULT);
   g_object_bind_property (self, "time-format", self->week_view, "time-format", G_BINDING_DEFAULT);