search: Introduce a search engine

This is architectured in such a way that it will
allow us to introduce other searcheable terms in
the future.

All the functionality that in the past was in
GcalManager is now spread across GcalSearchModel,
GcalSearchHitEvent and GcalSearchEngine.

src/gcal-manager.c

@@ -81,7 +81,6 @@ struct _GcalManager
   ECredentialsPrompter *credentials_prompter;
 
   ECalDataModel      *e_data_model;
-  ECalDataModel      *search_data_model;
 
   ECalDataModel      *shell_search_data_model;
   ViewStateData      *search_view_data;
@@ -171,8 +170,6 @@ remove_source (GcalManager  *self,
 
   e_cal_data_model_remove_client (self->e_data_model,
                                   e_source_get_uid (source));
-  e_cal_data_model_remove_client (self->search_data_model,
-                                  e_source_get_uid (source));
 
   unit = g_hash_table_lookup (self->clients, source);
   if (unit && unit->client)
@@ -303,7 +300,6 @@ on_client_connected (GObject      *source_object,
   if (enabled)
     {
       e_cal_data_model_add_client (self->e_data_model, client);
-      e_cal_data_model_add_client (self->search_data_model, client);
       if (self->shell_search_data_model != NULL)
         e_cal_data_model_add_client (self->shell_search_data_model, client);
     }
@@ -655,7 +651,6 @@ gcal_manager_finalize (GObject *object)
   GCAL_ENTRY;
 
   g_clear_object (&self->e_data_model);
-  g_clear_object (&self->search_data_model);
   g_clear_object (&self->shell_search_data_model);
 
   if (self->search_view_data)
@@ -1080,56 +1075,6 @@ gcal_manager_set_subscriber (GcalManager             *self,
   GCAL_EXIT;
 }
 
-/**
- * gcal_manager_set_search_subscriber:
- * @self: a #GcalManager
- * @subscriber: a #ECalDataModelSubscriber
- * @range_start: the start of the range
- * @range_end: the end of the range
- *
- * Sets the @subscriber to show events between @range_start
- * and @range_end.
- */
-void
-gcal_manager_set_search_subscriber (GcalManager             *self,
-                                    ECalDataModelSubscriber *subscriber,
-                                    time_t                   range_start,
-                                    time_t                   range_end)
-{
-  GCAL_ENTRY;
-
-  g_return_if_fail (GCAL_IS_MANAGER (self));
-
-  e_cal_data_model_subscribe (self->search_data_model,
-                              subscriber,
-                              range_start,
-                              range_end);
-
-  GCAL_EXIT;
-}
-
-/**
- * gcal_manager_set_query:
- * @self: A #GcalManager instance
- * @query: (nullable): query terms or %NULL
- *
- * Set the query terms of the #ECalDataModel or clear it if %NULL is
- * passed
- */
-void
-gcal_manager_set_query (GcalManager *self,
-                        const gchar *query)
-{
-  GCAL_ENTRY;
-
-  g_return_if_fail (GCAL_IS_MANAGER (self));
-
-  e_cal_data_model_set_filter (self->search_data_model,
-                               query != NULL ? query : "#t");
-
-  GCAL_EXIT;
-}
-
 /**
  * gcal_manager_query_client_data:
  *
@@ -1246,7 +1191,6 @@ gcal_manager_enable_source (GcalManager *self,
     }
 
   e_cal_data_model_add_client (self->e_data_model, unit->client);
-  e_cal_data_model_add_client (self->search_data_model, unit->client);
 
   if (self->shell_search_data_model)
     e_cal_data_model_add_client (self->shell_search_data_model, unit->client);
@@ -1291,7 +1235,6 @@ gcal_manager_disable_source (GcalManager *self,
   source_uid = e_source_get_uid (source);
 
   e_cal_data_model_remove_client (self->e_data_model, source_uid);
-  e_cal_data_model_remove_client (self->search_data_model, source_uid);
 
   if (self->shell_search_data_model != NULL)
     e_cal_data_model_remove_client (self->shell_search_data_model, source_uid);
@@ -1821,12 +1764,9 @@ gcal_manager_startup (GcalManager *self)
 
   /* create data model */
   self->e_data_model = e_cal_data_model_new (gcal_thread_submit_job);
-  self->search_data_model = e_cal_data_model_new (gcal_thread_submit_job);
 
   e_cal_data_model_set_expand_recurrences (self->e_data_model, TRUE);
   e_cal_data_model_set_timezone (self->e_data_model, e_cal_util_get_system_timezone ());
-  e_cal_data_model_set_expand_recurrences (self->search_data_model, TRUE);
-  e_cal_data_model_set_timezone (self->search_data_model, e_cal_util_get_system_timezone ());
 
   sources = e_source_registry_list_enabled (self->source_registry, E_SOURCE_EXTENSION_CALENDAR);
   self->sources_at_launch = g_list_length (sources);
@@ -1838,3 +1778,15 @@ gcal_manager_startup (GcalManager *self)
 
   GCAL_EXIT;
 }
+
+ECalClient*
+gcal_manager_get_client (GcalManager *self,
+                         ESource     *source)
+{
+  GcalManagerUnit *unit;
+
+  g_return_val_if_fail (GCAL_IS_MANAGER (self), NULL);
+
+  unit = g_hash_table_lookup (self->clients, source);
+  return unit ? unit->client : NULL;
+}