--- loncom/interface/courseprefs.pm	2023/06/01 20:04:36	1.121
+++ loncom/interface/courseprefs.pm	2023/06/03 11:21:37	1.124
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set configuration settings for a course
 #
-# $Id: courseprefs.pm,v 1.121 2023/06/01 20:04:36 raeburn Exp $
+# $Id: courseprefs.pm,v 1.124 2023/06/03 11:21:37 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -316,7 +316,7 @@ sub handler {
                 idnu => 'Course ID or number',
                 unco => 'Unique code',
                 desc => 'Course Description',
-                cred => 'Student credits', 
+                cred => 'Student credits',
                 ownr => 'Course Owner',
                 cown => 'Course Co-owners',
                 catg => 'Categorize course',
@@ -522,7 +522,7 @@ sub handler {
                           uselcmath               => 'Student formula entry uses inline preview, not DragMath pop-up',
                           usejsme                 => 'Molecule editor uses JSME (HTML5) in place of JME (Java)',
                           inline_chem             => 'Chemical reaction response uses inline preview, not pop-up',
-                          extresource             => 'Display of external resources',   
+                          extresource             => 'Display of external resources',
                                   },
                   },
         'grading' =>
@@ -1337,14 +1337,14 @@ sub process_changes {
                             my ($classorder,$classtitles) = &discussion_vote_classes();
                             my $fontchange = 0;
                             foreach my $class (@{$classorder}) {
-                                my $ext_entry = $entry.'_'.$class; 
+                                my $ext_entry = $entry.'_'.$class;
                                 my $size = $env{'form.'.$ext_entry.'_size'};
                                 my $unit = $env{'form.'.$ext_entry.'_unit'};
                                 my $weight = $env{'form.'.$ext_entry.'_weight'};
                                 my $style = $env{'form.'.$ext_entry.'_style'};
                                 my $other = $env{'form.'.$ext_entry.'_other'};
                                 $size =~ s/,//g;
-                                $unit =~ s/,//g; 
+                                $unit =~ s/,//g;
                                 $weight =~ s/,//g;
                                 $style =~ s/,//g;
                                 $other =~ s/[^\w;:\s\-\%.]//g;
@@ -1352,7 +1352,7 @@ sub process_changes {
                                 $newvalues{$ext_entry} = join(',',($size.$unit,$weight,$style,$other));
                                 my $current = $values->{$ext_entry};
                                 if ($values->{$ext_entry} eq '') {
-                                    $current = ',,,'; 
+                                    $current = ',,,';
                                 }
                                 if ($newvalues{$ext_entry} ne $current) {
                                     $changes->{$ext_entry} = $newvalues{$ext_entry};
@@ -1361,7 +1361,7 @@ sub process_changes {
                             }
                             if ($fontchange) {
                                 $changes->{$entry} = 1;
-                            } 
+                            }
                         } elsif ($entry eq 'nothideprivileged') {
                             my @curr_nothide;
                             my @new_nothide;
@@ -1436,7 +1436,7 @@ sub process_changes {
                             my $newtext = $maxnum-1;
                             $newhdr[$env{'form.printfmthdr_pos_'.$newtext}] = $env{'form.printfmthdr_text_'.$newtext};
                             $newvalues{$entry} = join('',@newhdr);
-                        } elsif (($entry eq 'languages') || 
+                        } elsif (($entry eq 'languages') ||
                                  ($entry eq 'checkforpriv')) {
                             my $settings;
                             my $total = $env{'form.'.$entry.'_total'};
@@ -1452,7 +1452,7 @@ sub process_changes {
                             }
                             if ($env{'form.'.$entry.'_'.$total} ne '') {
                                 my $new = $env{'form.'.$entry.'_'.$total};
-                                if ($entry eq 'languages') { 
+                                if ($entry eq 'languages') {
                                     my %langchoices = &get_lang_choices();
                                     if ($langchoices{$new}) {
                                         $settings .= $new;
@@ -1551,7 +1551,7 @@ sub process_changes {
                         } else {
                             $newvalues{$entry} = $env{'form.'.$entry};
                         }
-                        unless (($entry eq 'co-owners') || ($entry eq 'discussion_post_fonts') || 
+                        unless (($entry eq 'co-owners') || ($entry eq 'discussion_post_fonts') ||
                                 ($entry eq 'extresource') || ($entry eq 'timezone')) {
                             if ($newvalues{$entry} ne $values->{$entry}) {
                                 $changes->{$entry} = $newvalues{$entry};
@@ -1661,15 +1661,32 @@ sub process_linkprot {
         } elsif (exists($env{$urlparamname})) {
             $env{$urlparamname} = '';
         }
+        my $passback = 'form.linkprot_passback_'.$idx;
+        my $passbackparamname = 'form.linkprot_passbackformat_'.$idx;
+        if ($env{$passback} == 1) {
+            unless ($env{$passbackparamname} =~ /^1\.(0|1)$/) {
+                $env{$passbackparamname} = '';
+            }
+        } elsif (exists($env{$passbackparamname})) {
+            $env{$passbackparamname} = '';
+        }
         unless ($idx eq 'add') {
             if ((!$current{'returnurl'} && ($env{$urlparamname} ne '')) ||
                 ($current{'returnurl'} && ($env{$urlparamname} eq ''))) {
                 $haschanges{$itemid} = 1;
             }
+            if ((!$current{'passback'} && ($env{$passbackparamname} ne '')) ||
+                ($current{'passback'} && ($env{$passbackparamname} eq ''))) {
+                $haschanges{$itemid} = 1;
+            }
         }
         if ($env{$urlparamname} ne '') {
             $linkprot{$itemid}{'returnurl'} = $env{$urlparamname};
         }
+        if ($env{$passbackparamname} ne '') {
+            $linkprot{$itemid}{'passback'} = 1;
+            $linkprot{$itemid}{'passbackformat'} = $env{$passbackparamname};
+        }
         if ($ltiauth) {
             my $reqitem = 'form.linkprot_requser_'.$idx;
             $env{$reqitem} =~ s/(`)/'/g;
@@ -1780,7 +1797,7 @@ sub get_linkprot_id {
         $tries ++;
         sleep (0.1);
         if ($context eq 'domain') {
-            $gotlock = &Apache::lonnet::newput_dom('linkprot',$lockhash,$cdom); 
+            $gotlock = &Apache::lonnet::newput_dom('linkprot',$lockhash,$cdom);
         } else {
             $gotlock = &Apache::lonnet::newput('lti',$lockhash,$cdom,$cnum);
         }
@@ -1818,7 +1835,7 @@ sub get_linkprot_id {
                 $error = 'nonumber';
             }
         }
-        my $dellockoutcome; 
+        my $dellockoutcome;
         if ($context eq 'domain') {
             $dellockoutcome = &Apache::lonnet::del_dom('linkprot',['lock'],$cdom);
         } else {
@@ -3088,7 +3105,7 @@ sub store_linkprot {
                     my %values = %{$changes->{$id}};
                     my %desc = &linkprot_names();
                     my $display;
-                    foreach my $title ('name','lifetime','version','key','secret','returnurl') {
+                    foreach my $title ('name','lifetime','version','key','secret','returnurl','passbackformat') {
                         if (($title eq 'key') || ($title eq 'secret')) {
                             if (ref($ltienc{$id}) eq 'HASH') {
                                 if (exists($ltienc{$id}{$title})) {
@@ -3106,7 +3123,13 @@ sub store_linkprot {
                             }
                         } elsif ($title eq 'returnurl') {
                             if ($values{$title}) {
-                                $display .= &mt('Return URL parameter').': '.$values{$title}.', '; 
+                                $display .= &mt('Return URL parameter').': '.$values{$title}.', ';
+                            }
+                        } elsif ($title eq 'passbackformat') {
+                            if ($values{$title} eq '1.0') {
+                                $display .= &mt('Can return grades to Launcher with Outcomes Service 1.0 format').', ';
+                            } elsif ($values{$title} eq '1.1') {
+                                $display .= &mt('Can return grades to Launcher with Outcomes Service 1.1 format').', ';
                             }
                         } else {
                             $display .= $desc{$title}.': '.$values{$title}.', ';
@@ -3532,7 +3555,7 @@ sub get_jscript {
                                     $local_to_standard{$code_order[$i]} = $standardnames[$i];
                                 }
                                 foreach my $cloner (@cloners) {
-                                    if (($cloner !~ /^\Q*:\E$match_domain$/) && 
+                                    if (($cloner !~ /^\Q*:\E$match_domain$/) &&
                                         ($cloner !~ /^$match_username\:$match_domain$/)) {
                                         foreach my $item (split(/\&/,$cloner)) {
                                             my ($key,$val) = split(/\=/,$item);
@@ -3759,7 +3782,7 @@ function toggleTimeZone() {
 }
 ENDSCRIPT
     $jscript = '<script type="text/javascript" language="Javascript">'."\n".
-               '// <![CDATA['."\n".  
+               '// <![CDATA['."\n".
                $browse_js."\n".$categorize_js."\n".$loncaparev_js."\n".
                $cloners_js."\n".$instcode_js."\n".$localization_js."\n".
                $syllabus_js."\n".$menuitems_js."\n".$extresource_js."\n".
@@ -3973,7 +3996,7 @@ sub print_courseinfo {
                    &mt('Modification may make assessment data inaccessible!').
                    '</span>';
         $editsyllabus = &mt('[_1]Edit[_2]','<a href="/public/'.$cdom.'/'.$cnum.'/syllabus?forceedit=1">',
-                            '</a>');  
+                            '</a>');
     }
     my %items = (
         'url' => {
@@ -4054,7 +4077,7 @@ sub print_courseinfo {
             next if (!$env{'course.'.$env{'request.course.id'}.'.internal.uniquecode'});
         }
         unless (($item eq 'cloners') || ($item eq 'rolenames')) {
-            $colspan = 2; 
+            $colspan = 2;
         }
         $count ++;
         if (exists $items{$item}{advanced} && $items{$item}{advanced} == 1) {
@@ -4237,12 +4260,12 @@ sub print_courseinfo {
             if ($clonesrc =~ m{/$match_domain/$match_courseid}) {
                 my %clonesrcinfo = &Apache::lonnet::coursedescription($clonesrc);
                 if ($clonesrcinfo{'description'}) {
-                    $clonedfrom = $clonesrcinfo{'description'}.' '.($clonesrc); 
+                    $clonedfrom = $clonesrcinfo{'description'}.' '.($clonesrc);
                 }
             }
             $datatable .= $clonedfrom;
         } elsif ($item eq 'uniquecode') {
-            my $code = $env{'course.'.$env{'request.course.id'}.'.internal.uniquecode'}; 
+            my $code = $env{'course.'.$env{'request.course.id'}.'.internal.uniquecode'};
             if ($code) {
                 $datatable .= $code;
             }
@@ -4289,12 +4312,12 @@ sub print_courseinfo {
             } elsif ($uploaded) {
                 $datatable .= &mt('Uploaded file');
             } else {
-                $datatable .= &mt('Standard template'); 
+                $datatable .= &mt('Standard template');
             }
             $datatable .= ('&nbsp;' x 2).
                           &mt('[_1]View[_2]',
                               '<a href="javascript:syllabusinfo();">',
-                              '</a>'); 
+                              '</a>');
         } elsif ($item eq 'loncaparev') {
             my $loncaparev = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
             my $showreqd;
@@ -4319,7 +4342,7 @@ sub new_cloners_dom_row {
     my ($output,$checkedon,$checkedoff);
     if ($newdom ne '') {
         if ($num eq $default) {
-           $checkedon = 'checked="checked" '; 
+           $checkedon = 'checked="checked" ';
         } else {
            $checkedoff = 'checked="checked" ';
         }
@@ -4470,7 +4493,7 @@ ENDSCRIPT
 
 sub display_loncaparev_constraints {
     my ($r,$navmap,$loncaparev,$crstype) = @_;
-    my ($reqdmajor,$reqdminor); 
+    my ($reqdmajor,$reqdminor);
     my $cid = $env{'request.course.id'};
     my $cdom = $env{'course.'.$cid.'.domain'};
     my $cnum = $env{'course.'.$cid.'.num'};
@@ -4740,7 +4763,7 @@ sub display_loncaparev_constraints {
                 if (ref($fromblocks{$type}) eq 'HASH') {
                     foreach my $rev (keys(%{$fromblocks{$type}})) {
                         my ($major,$minor) = split(/\./,$rev);
-                        ($reqdmajor,$reqdminor) = 
+                        ($reqdmajor,$reqdminor) =
                             &Apache::lonrelrequtils::update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
                         $output .= &Apache::loncommon::start_data_table_row().
                                    '<td>'.$rev.'</td><td>'.$lt{$type}.'</td><td>';
@@ -4827,7 +4850,7 @@ sub display_loncaparev_constraints {
                             &Apache::lonrelrequtils::update_reqd_loncaparev($major,$minor,
                                                                             $reqdmajor,$reqdminor);
                         $checkedrev{$key} = 1;
-                    } 
+                    }
                     push(@{$byresponsetype{$symb}{$rev}},$key);
                     $allmaps{$enclosing_map} = 1;
                 }
@@ -5079,7 +5102,7 @@ sub show_contents_view {
 sub releases_by_map {
     my ($r,$bymap,$url,$scopeorder,$lt) = @_;
     return unless ((ref($bymap) eq 'HASH') && (ref($scopeorder) eq 'ARRAY'));
-    my $newrow = 0; 
+    my $newrow = 0;
     if (ref($bymap->{$url}) eq 'HASH') {
         foreach my $rev (sort(keys(%{$bymap->{$url}}))) {
             if ($newrow) {
@@ -5400,7 +5423,7 @@ sub print_localization {
                                                       undef,$includeempty,$disabled);
         } else {
             if ($settings->{$item} eq '') {
-                unless ($noedit) { 
+                unless ($noedit) {
                     $datatable .= '</td><td align="right">'.
                         &Apache::loncommon::select_language('languages_0','',1);
                 }
@@ -5437,8 +5460,8 @@ sub print_localization {
                               &Apache::loncommon::select_language('languages_'.$num,'',1).
                               '<input type="hidden" name="languages_total" value="'.$num.'" />'.
                               '</td>'.&Apache::loncommon::end_data_table_row();
-                 }
-                 $datatable .= &Apache::loncommon::end_data_table().'<br />';
+                }
+                $datatable .= &Apache::loncommon::end_data_table().'<br />';
             }
         }
         $datatable .= &item_table_row_end();
@@ -5724,7 +5747,7 @@ sub print_discussion {
         my $colspan;
         if ($item eq 'allow_limited_html_in_feedback') {
             $colspan = 2;
-        } 
+        }
         $datatable .= &item_table_row_start($items{$item}{text},$count,undef,$colspan);
         if ($item eq 'plc.roles.denied') {
             $datatable .= '</td><td align="right">'.
@@ -5769,7 +5792,7 @@ sub print_discussion {
                           '<th align="center">'.&mt('font-size').'</th>'.
                           '<th align="center">'.&mt('font-weight').'</th>'.
                           '<th align="center">'.&mt('font-style').'</th>'.
-                          '<th align="center">'.&mt('Other css').'</th>'. 
+                          '<th align="center">'.&mt('Other css').'</th>'.
                           &Apache::loncommon::end_data_table_row().
                           &set_discussion_fonts($cdom,$cnum,$item,$settings,$noedit).
                           &Apache::loncommon::end_data_table().'<br />';
@@ -5821,7 +5844,7 @@ sub role_checkboxes {
     my $count = 0;
     my $disabled;
     if ($noedit) {
-        $disabled = ' disabled="disabled"';  
+        $disabled = ' disabled="disabled"';
     }
     foreach my $role (@roles) {
         my $checked = '';
@@ -5949,7 +5972,7 @@ sub set_discussion_fonts {
 
 sub discussion_vote_classes {
     my $classorder = ['twoplus','oneplus','zero','oneminus','twominus'];
-    my %classtitles = &Apache::lonlocal::texthash( 
+    my %classtitles = &Apache::lonlocal::texthash(
                         'twoplus'  => 'Two sigma above mean',
                         'oneplus'  => 'One sigma above mean',
                         'zero'     => 'Within one sigma of mean',
@@ -6015,7 +6038,7 @@ sub print_classlists {
         'defaultcredits' => {
                    text => '<b>'.&mt($itemtext->{'defaultcredits'}).'</b>',
                  },
-              
+
         'nothideprivileged'   => {
                    text => '<b>'.&mt($itemtext->{'nothideprivileged'}).'</b>',
                    input => 'checkbox',
@@ -7227,7 +7250,7 @@ sub menucollections_display {
                                    '<legend>'.$menutitles{$category}.'</legend>'."\n";
                         if ($category eq 'text') {
                             $output .= '<b>'.&mt('Header Text').'</b><br /><br />';
-                        } 
+                        }
                         foreach my $field (@{$categories{$category}}) {
                             if ($field eq 'disc') {
                                 $output .= '<br /><b>'.&mt('Footer Text').'</b><br /><br />';
@@ -7282,12 +7305,12 @@ sub print_linkprotection {
     } else {
         $dest = '/adm/courseprefs';
     }
-    
+
     my ($switchserver,$switchmessage);
     $switchserver = &check_switchserver($cdom,$cnum,$context,$dest);
     if ($switchserver) {
         if ($context eq 'domain') {
-            $switchmessage = &mt("submit from domain's primary library server: [_1].",$switchserver);  
+            $switchmessage = &mt("submit from domain's primary library server: [_1].",$switchserver);
         } elsif ($crstype eq 'Community') {
            $switchmessage = &mt("submit from community's home server: [_1].",$switchserver);
         } else {
@@ -7316,7 +7339,27 @@ sub print_linkprotection {
                     '<tr '.$css_class.'><td><span class="LC_nobreak">'.
                     '<label><input type="checkbox" name="linkprot_del" value="'.$i.'"'.$disabled.' />'.
                     &mt('Delete?').'</label></span></td><td>';
-                my ($usersty,$onclickrequser,%checkedrequser,$onclickreturnurl,%checkedreturnurl);
+                my ($usersty,$onclickrequser,%checkedrequser,$onclickreturnurl,%checkedreturnurl,
+                    $onclickpassback,%checkedpassback,$passbacksty,%checkedpassbackfmt);
+                $passbacksty = 'none';
+                $onclickpassback = ' onclick="toggleLinkProtExtra(this.form,'."'passback','passbackparam','1','inline-block','$i'".');"';
+                %checkedpassback = (
+                    'no' => ' checked="checked"',
+                    'yes' => '',
+                );
+                %checkedpassbackfmt = (
+                    '1p1' => ' checked="checked"',
+                    '1p0' => '',
+                );
+                if ($values{'passback'} ne '') {
+                    $passbacksty = 'inline-block';
+                    $checkedpassback{'yes'} = ' checked="checked"';
+                    $checkedpassback{'no'} = '';
+                    if ($values{'passbackformat'} eq '1.0') {
+                        $checkedpassbackfmt{'1p0'} = ' checked="checked"';
+                        $checkedpassbackfmt{'1p1'} = '';
+                    }
+                }
                 if ($ltiauth) {
                     $usersty = 'display:none';
                     $onclickrequser = ' onclick="toggleLinkProtExtra(this.form,'."'requser','optional','1','block','$i'".');"';
@@ -7329,7 +7372,7 @@ sub print_linkprotection {
                         $checkedrequser{'no'} = '';
                     }
                     $datatable .= '<fieldset><legend>'.$lt{'requ'}.'</legend>';
-                    if ($values{'requser'}) { 
+                    if ($values{'requser'}) {
                         $usersty = 'display:inline-block';
                     }
                 }
@@ -7405,6 +7448,19 @@ sub print_linkprotection {
                     }
                 }
                 $datatable .= '<br /><br />'.
+                              '<span class="LC_nobreak">'.$desc{'passback'}.'?'.
+                              '<label><input type="radio" name="linkprot_passback_'.$i.'" value="0"'.
+                              $onclickpassback.$checkedpassback{'no'}.$disabled.' />'.&mt('No').'</label>&nbsp;'.
+                              '<label><input type="radio" name="linkprot_passback_'.$i.'" value="1"'.
+                              $onclickpassback.$checkedpassback{'yes'}.$disabled.' />'.&mt('Yes').'</label></span><br />'.
+                              '<div id="linkprot_passbackparam_'.$i.'" class="LC_floatleft" style="display:'.$passbacksty.'" />'.
+                              '<span class="LC_nobreak">'.&mt('Grade format').
+                              '<label><input type="radio" name="linkprot_passbackformat_'.$i.'" value="1.1"'.$checkedpassbackfmt{'1p1'}.' />'.
+                              &mt('Outcomes Service (1.1)').'</label>'.('&nbsp;'x2).
+                              '<label><input type="radio" name="linkprot_passbackformat_'.$i.'" value="1.0"'.$checkedpassbackfmt{'1p0'}.'/>'.
+                              &mt('Outcomes Extension (1.0)').'</label></span></div>'.
+                              '<div style="padding:0;clear:both;margin:0;border:0"></div>'.
+                              '<br />'.
                               '<span class="LC_nobreak">'.$desc{'returnurl'}.'?'.
                               '<label><input type="radio" name="linkprot_returnurl_'.$i.'" value="0"'.
                               $onclickreturnurl.$checkedreturnurl{'no'}.$disabled.' />'.&mt('No').'</label>&nbsp;'.
@@ -7435,7 +7491,8 @@ sub print_linkprotection {
                   '<input type="hidden" name="linkprot_maxnum" value="'.$next.'" />'."\n".
                   '<input type="checkbox" name="linkprot_add" value="1"'.$disabled.' />'.&mt('Add').'</span></td>'."\n".
                   '<td width="100%">';
-    my ($usersty,$onclickrequser,%checkedrequser,$onclickreturnurl,%checkedreturnurl);
+    my ($usersty,$onclickrequser,%checkedrequser,$onclickreturnurl,%checkedreturnurl,
+       $onclickpassback,%checkedpassback,%checkedpassbackfmt);
     if ($ltiauth) {
         $usersty = 'display:none';
         $onclickrequser = ' onclick="toggleLinkProtExtra(this.form,'."'requser','optional','1','block','add'".');"';
@@ -7445,6 +7502,15 @@ sub print_linkprotection {
         );
         $datatable .= '<fieldset><legend>'.$lt{'requ'}.'</legend>';
     }
+    $onclickpassback = ' onclick="toggleLinkProtExtra(this.form,'."'passback','passbackparam','1','inline-block','add'".');"';
+    %checkedpassback = (
+        'no' => ' checked="checked"',
+        'yes' => '',
+    );
+    %checkedpassbackfmt = (
+        '1p1' => ' checked="checked"',
+        '1p0' => '',
+    );
     $onclickreturnurl = ' onclick="toggleLinkProtExtra(this.form,'."'returnurl','divurlparam','1','inline-block','add'".');"';
     %checkedreturnurl = (
         no => ' checked="checked"',
@@ -7467,6 +7533,19 @@ sub print_linkprotection {
                       '<label><input type="checkbox" name="linkprot_visible_add" id="linkprot_visible_add" onclick="if (this.checked) { this.form.linkprot_secret_add.type='."'text'".' } else { this.form.linkprot_secret_add.type='."'password'".' }"'.$disabled.' />'.&mt('Visible input').'</label></span> '."\n";
     }
     $datatable .= '<br /><br />'.
+                  '<span class="LC_nobreak">'.$desc{'passback'}.'?'.
+                  '<label><input type="radio" name="linkprot_passback_add" value="0"'.
+                  $onclickpassback.$checkedpassback{'no'}.$disabled.' />'.&mt('No').'</label>&nbsp;'.
+                  '<label><input type="radio" name="linkprot_passback_add" value="1"'.
+                  $onclickpassback.$checkedpassback{'yes'}.$disabled.' />'.&mt('Yes').'</label></span>'.
+                  '<br /><div id="linkprot_passbackparam_add" class="LC_floatleft" style="display:none" />'.
+                  '<span class="LC_nobreak">'.&mt('Grade format').
+                  '<label><input type="radio" name="linkprot_passbackformat_add" value="1.1"'.$checkedpassbackfmt{'1p1'}.$disabled.' />'.
+                  &mt('Outcomes Service (1.1)').'</label>'.('&nbsp;'x2).
+                  '<label><input type="radio" name="linkprot_passbackformat_add" value="1.0"'.$checkedpassbackfmt{'1p0'}.$disabled.' />'.
+                  &mt('Outcomes Extension (1.0)').'</label></span></div>'.
+                  '<div style="padding:0;clear:both;margin:0;border:0"></div>'.
+                  '<br />'.
                   '<span class="LC_nobreak">'.$desc{'returnurl'}.'?'.
                   '<label><input type="radio" name="linkprot_returnurl_add" value="0"'.
                   $onclickreturnurl.$checkedreturnurl{'no'}.$disabled.' />'.&mt('No').'</label>&nbsp;'.
@@ -7499,6 +7578,7 @@ sub linkprot_names {
                                           'lifetime'  => 'Nonce lifetime (s)',
                                           'name'      => 'Launcher Application',
                                           'secret'    => 'Secret',
+                                          'passback'  => 'Can return grades to Launcher',
                                           'returnurl' => 'Launcher return URL',
                                           'requser'   => 'Use identity',
                                           'email'     => 'Email address',
@@ -7591,7 +7671,7 @@ sub print_extresource_row {
                                       $config->{'options'},$selected,
                                       $config->{'nullval'},
                                       undef,undef,$onchange,$noedit,$id);
-    my ($checked,$reusesty,$sizesty); 
+    my ($checked,$reusesty,$sizesty);
     if ($reuse) {
         $checked = ' checked="checked"';
     }
@@ -7885,7 +7965,7 @@ sub nothidepriv_row {
             }
         }
         if ($settings->{'checkforpriv'}) {
-            @checkdoms = split(/,/,$settings->{'checkforpriv'}); 
+            @checkdoms = split(/,/,$settings->{'checkforpriv'});
         }
     }
     push(@checkdoms,$cdom);
@@ -7899,7 +7979,7 @@ sub nothidepriv_row {
         if ($end == -1 || $start == -1) {
             next;
         }
-        foreach my $dom (@checkdoms) { 
+        foreach my $dom (@checkdoms) {
             if (&Apache::lonnet::privileged($uname,$udom,\@checkdoms,['dc','su'])) {
                 unless (grep(/^\Q$user\E$/,@privusers)) {
                     push(@privusers,$user);
@@ -7975,7 +8055,7 @@ sub checkforpriv_row {
                 my $domdesc = &Apache::lonnet::domain($currdom,'description');
                 if ($domdesc eq '') {
                     $domdesc = $currdom;
-                } 
+                }
                 $datatable .=
                     &Apache::loncommon::start_data_table_row().
                     '<td align="left"><span class="LC_nobreak">'.
@@ -7987,13 +8067,13 @@ sub checkforpriv_row {
                     &mt('Delete').'</label></span></td>'.
                     &Apache::loncommon::end_data_table_row();
                 $num ++;
-                unless (grep(/^\Q$currdom\E$/,@excdoms)) { 
+                unless (grep(/^\Q$currdom\E$/,@excdoms)) {
                     push(@excdoms,$currdom);
                 }
             }
         }
         if ((scalar(keys(%domains)) - scalar(@excdoms)) > 0) {
-            $datatable .= 
+            $datatable .=
                 &Apache::loncommon::start_data_table_row().
                 '<td align="left"><span class="LC_nobreak">'.
                 &mt('Additional domain:'). '</span><br />'.
@@ -8107,7 +8187,7 @@ ENDJS
         }
     }
     my $pos = $currnum+1;
-    unless ($noedit) { 
+    unless ($noedit) {
         $output .= 
                '<tr>'.
                '<td align="left"><span class="LC_nobreak">'.