Added group chat join/part/name change messages.

src/twc-tox-callbacks.c

@@ -334,11 +334,14 @@ twc_group_namelist_change_callback(Tox *tox,
 
     struct t_gui_nick *nick;
     char *name = twc_get_peer_name_nt(profile->tox, group_number, peer_number);
+    char *prev_name = NULL;
 
     if (change_type == TOX_CHAT_CHANGE_PEER_DEL
         || change_type == TOX_CHAT_CHANGE_PEER_NAME)
     {
         nick = weechat_hashtable_get(chat->nicks, &peer_number);
+        prev_name = strdup(weechat_nicklist_nick_get_string(chat->buffer,
+                                                            nick, "name"));
         weechat_nicklist_remove_nick(chat->buffer, nick);
         weechat_hashtable_remove(chat->nicks, &peer_number);
     }
@@ -350,5 +353,21 @@ twc_group_namelist_change_callback(Tox *tox,
                                          name, NULL, NULL, NULL, 1);
         weechat_hashtable_set(chat->nicks, &peer_number, nick);
     }
+
+    switch (change_type)
+    {
+        case TOX_CHAT_CHANGE_PEER_NAME:
+            weechat_printf(chat->buffer, "%s%s is now known as %s",
+                           weechat_prefix("network"), prev_name, name);
+            break;
+        case TOX_CHAT_CHANGE_PEER_ADD:
+            weechat_printf(chat->buffer, "%s%s just joined the group chat",
+                           weechat_prefix("join"), name);
+            break;
+        case TOX_CHAT_CHANGE_PEER_DEL:
+            weechat_printf(chat->buffer, "%s%s just left the group chat",
+                           weechat_prefix("quit"), name);
+            break;
+    }
 }