--- loncom/interface/lontiny.pm	2018/05/10 03:49:51	1.3
+++ loncom/interface/lontiny.pm	2018/07/01 00:03:44	1.4
@@ -2,7 +2,7 @@
 # Extract domain, courseID, and symb from a shortened URL,
 # and switch role to a role in designated course.
 #
-# $Id: lontiny.pm,v 1.3 2018/05/10 03:49:51 raeburn Exp $
+# $Id: lontiny.pm,v 1.4 2018/07/01 00:03:44 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -86,8 +86,34 @@ sub handler {
                                 }
                             }
                             my @allposs = keys(%possroles);
+                            if ($env{'request.lti.login'}) {
+                                &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
+                                if ($env{'request.lti.target'} eq '') {
+                                    if ($env{'form.ltitarget'} eq 'iframe') {
+                                        &Apache::lonnet::appenv({'request.lti.target' => 'iframe'});
+                                        delete($env{'form.ltitarget'});
+                                    }
+                                }
+                                if ($env{'form.selectrole'}) {
+                                    foreach my $role (@allposs) {
+                                        my $newrole = "$role./$cdom/$cnum";
+                                        if ($possroles{$allposs[0]} ne '') {
+                                            $newrole .= "/$possroles{$role}";
+                                        }
+                                        if ($env{"form.$newrole"}) {
+                                            my $destination .= '/adm/roles?selectrole=1&'.$newrole.'=1'.
+                                                               '&destinationurl='.&HTML::Entities::encode($r->uri);
+                                            if ($env{'form.ltitarget'} eq 'iframe') {
+                                                $destination .= '&ltitarget=iframe';
+                                            }
+                                            &do_redirect($r,$destination);
+                                            return OK;
+                                        }
+                                    }
+                                }
+                            }
                             if (@allposs == 0) {
-                                &show_roles($r,\%crsenv,\%possroles)
+                                &show_roles($r,\%crsenv,\%possroles);
                             } elsif (@allposs == 1) {
                                 my $newrole = "$allposs[0]./$cdom/$cnum";
                                 $newrole = "$allposs[0]./$cdom/$cnum";