Add MimeFactory.past_members field

Author: link2xt

src/mimefactory.rs

@@ -69,6 +69,9 @@ pub struct MimeFactory {
     /// Vector of pairs of recipient name and address
     recipients: Vec<(String, String)>,
 
+    /// Vector of pairs of past group member name and addresses.
+    past_members: Vec<(String, String)>,
+
     timestamp: i64,
     loaded: Loaded,
     in_reply_to: String,
@@ -146,6 +149,7 @@ impl MimeFactory {
             };
 
         let mut recipients = Vec::with_capacity(5);
+        let mut past_members = Vec::new();
         let mut recipient_ids = HashSet::new();
         let mut req_mdn = false;
 
@@ -179,18 +183,21 @@ impl MimeFactory {
                     |rows| {
                         for row in rows {
                             let (authname, addr, id, add_timestamp, remove_timestamp) = row?;
+                            let name = match attach_profile_data {
+                                true => authname,
+                                false => "".to_string(),
+                            };
                             if add_timestamp >= remove_timestamp {
                                 if !recipients_contain_addr(&recipients, &addr) {
-                                    let name = match attach_profile_data {
-                                        true => authname,
-                                        false => "".to_string(),
-                                    };
                                     recipients.push((name, addr));
                                 }
                                 recipient_ids.insert(id);
                             } else {
                                 // Row is a tombstone,
                                 // member is not actually part of the group.
+                                if !recipients_contain_addr(&past_members, &addr) {
+                                    past_members.push((name, addr));
+                                }
                             }
                         }
                         Ok(())
@@ -239,6 +246,7 @@ impl MimeFactory {
             sender_displayname,
             selfstatus,
             recipients,
+            past_members,
             timestamp: msg.timestamp_sort,
             loaded: Loaded::Message { msg, chat },
             in_reply_to,
@@ -267,6 +275,7 @@ impl MimeFactory {
             sender_displayname: None,
             selfstatus: "".to_string(),
             recipients: vec![("".to_string(), contact.get_addr().to_string())],
+            past_members: vec![],
             timestamp,
             loaded: Loaded::Mdn {
                 rfc724_mid,