[evolution-ews] I#60 - Messages deleted in public folders cannot be moved to Deleted Items

[Milan Crha <mcrha src gnome org>]

commit 7e6b2f7acebca558b4825af6699a1318ea10e578
Author: Milan Crha <mcrha redhat com>
Date:   Mon Aug 26 16:52:25 2019 +0200

    I#60 - Messages deleted in public folders cannot be moved to Deleted Items
    
    Closes https://gitlab.gnome.org/GNOME/evolution-ews/issues/60

 src/camel/camel-ews-folder.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
---
diff --git a/src/camel/camel-ews-folder.c b/src/camel/camel-ews-folder.c
index 7fdafd18..8f6edbd8 100644
--- a/src/camel/camel-ews-folder.c
+++ b/src/camel/camel-ews-folder.c
@@ -1512,6 +1512,29 @@ ews_folder_is_of_type (CamelFolder *folder,
        return is_of_type;
 }
 
+static gboolean
+ews_folder_is_public_or_foreign (CamelFolder *folder)
+{
+       CamelStore *parent_store;
+       CamelEwsStore *ews_store;
+       gboolean res;
+       gchar *folder_id;
+
+       g_return_val_if_fail (folder != NULL, FALSE);
+
+       parent_store = camel_folder_get_parent_store (folder);
+       ews_store = CAMEL_EWS_STORE (parent_store);
+
+       g_return_val_if_fail (ews_store != NULL, FALSE);
+
+       folder_id = camel_ews_store_summary_get_folder_id_from_name (ews_store->summary, 
camel_folder_get_full_name (folder));
+       res = folder_id && (camel_ews_store_summary_get_public (ews_store->summary, folder_id, NULL) ||
+               camel_ews_store_summary_get_foreign (ews_store->summary, folder_id, NULL));
+       g_free (folder_id);
+
+       return res;
+}
+
 static gboolean
 ews_move_to_special_folder (CamelFolder *folder,
                            const GSList *uids,
@@ -2765,6 +2788,9 @@ ews_delete_messages (CamelFolder *folder,
        if (!camel_ews_store_connected (ews_store, cancellable, error))
                return FALSE;
 
+       if (!expunge)
+               expunge = ews_folder_is_public_or_foreign (folder);
+
        ews_delete_messages_from_server (
                ews_store,
                deleted_items,