[evolution-data-server] ECalBackendSync: Ensure no Recurrence-ID set when removing all components

[Milan Crha <mcrha src gnome org>]

commit b019a1786a8e8e7fa906c443444ff27453bce270
Author: Milan Crha <mcrha redhat com>
Date:   Mon Apr 12 12:05:03 2021 +0200

    ECalBackendSync: Ensure no Recurrence-ID set when removing all components
    
    When removing all components, the notification about the removal should
    not have set the recurrence ID, thus the listeners know every instance of
    a recurring component is removed.

 src/calendar/libedata-cal/e-cal-backend-sync.c | 29 +++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)
---
diff --git a/src/calendar/libedata-cal/e-cal-backend-sync.c b/src/calendar/libedata-cal/e-cal-backend-sync.c
index ec9b49f88..f1eaac85b 100644
--- a/src/calendar/libedata-cal/e-cal-backend-sync.c
+++ b/src/calendar/libedata-cal/e-cal-backend-sync.c
@@ -796,13 +796,40 @@ cal_backend_remove_objects (ECalBackend *backend,
 {
        GError *error = NULL;
        GSList *old_components = NULL, *new_components = NULL;
+       GSList *tmp_ids = NULL;
 
        e_cal_backend_sync_remove_objects (E_CAL_BACKEND_SYNC (backend), cal, cancellable, ids, mod, opflags, 
&old_components, &new_components, &error);
 
-       e_data_cal_respond_remove_objects (cal, opid, error, ids, old_components, new_components);
+       /* Ensure there is no recurrence-id on the IDs when removing all components. */
+       if (!error && mod == E_CAL_OBJ_MOD_ALL) {
+               GSList *link;
+
+               for (link = (GSList *) ids; link; link = g_slist_next (link)) {
+                       ECalComponentId *id = link->data;
+
+                       if (id && e_cal_component_id_get_rid (id))
+                               break;
+               }
+
+               if (link) {
+                       for (link = (GSList *) ids; link; link = g_slist_next (link)) {
+                               ECalComponentId *id = e_cal_component_id_copy (link->data);
+
+                               if (id)
+                                       e_cal_component_id_set_rid (id, NULL);
+
+                               tmp_ids = g_slist_prepend (tmp_ids, id);
+                       }
+
+                       tmp_ids = g_slist_reverse (tmp_ids);
+               }
+       }
+
+       e_data_cal_respond_remove_objects (cal, opid, error, tmp_ids ? tmp_ids : ids, old_components, 
new_components);
 
        e_util_free_nullable_object_slist (old_components);
        e_util_free_nullable_object_slist (new_components);
+       g_slist_free_full (tmp_ids, e_cal_component_id_free);
 }
 
 static void