--- loncom/interface/domainprefs.pm	2021/12/24 11:07:42	1.398
+++ loncom/interface/domainprefs.pm	2022/01/19 16:54:16	1.403
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.398 2021/12/24 11:07:42 raeburn Exp $
+# $Id: domainprefs.pm,v 1.403 2022/01/19 16:54:16 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -877,6 +877,8 @@ sub print_config_box {
         $output .= &wafproxy_javascript($dom);
     } elsif ($action eq 'autoupdate') {
         $output .= &autoupdate_javascript();
+    } elsif ($action eq 'autoenroll') {
+        $output .= &autoenroll_javascript();
     } elsif ($action eq 'login') {
         $output .= &saml_javascript();
     } elsif ($action eq 'ipaccess') {
@@ -1355,6 +1357,7 @@ sub print_login {
             }
         }
         my @images = ('img','logo','domlogo','login');
+        my @alttext = ('img','logo','domlogo');
         my @logintext = ('textcol','bgcol');
         my @bgs = ('pgbg','mainbg','sidebg');
         my @links = ('link','alink','vlink');
@@ -1396,6 +1399,13 @@ sub print_login {
                     $designs{'showlogo'}{$item} = $settings->{'showlogo'}{$item};
                 }
             }
+            foreach my $item (@alttext) {
+                if (ref($settings->{'alttext'}) eq 'HASH') {
+                    if ($settings->{'alttext'}->{$item} ne '') {
+                        $designs{'alttext'}{$item} = $settings->{'alttext'}{$item};
+                    }
+                }
+            }
             foreach my $item (@logintext) {
                 if ($settings->{$item} ne '') {
                     $designs{'logintext'}{$item} = $settings->{$item};
@@ -1705,6 +1715,7 @@ sub login_choices {
             current       => "Current",
             samllanding   => "Dual login?",
             samloptions   => "Options",
+            alttext       => "Alt text",
         );
     return %choices;
 }
@@ -2050,7 +2061,7 @@ sub display_color_options {
         $css_class = $itemcount%2?' class="LC_odd_row"':'';
         $datatable .= '<tr'.$css_class.'>'.
                       '<td>'.$choices->{$img};
-        my ($imgfile,$img_import,$login_hdr_pick,$logincolors);
+        my ($imgfile,$img_import,$login_hdr_pick,$logincolors,$alttext);
         if ($role eq 'login') {
             if ($img eq 'login') {
                 $login_hdr_pick =
@@ -2058,8 +2069,13 @@ sub display_color_options {
                 $logincolors =
                     &login_text_colors($img,$role,$logintext,$phase,$choices,
                                        $designs,$defaults);
-            } elsif ($img ne 'domlogo') {
-                $datatable.= &logo_display_options($img,$defaults,$designs);
+            } else {
+                if ($img ne 'domlogo') {
+                    $datatable.= &logo_display_options($img,$defaults,$designs);
+                }
+                if (ref($designs->{'alttext'}) eq 'HASH') {
+                    $alttext = $designs->{'alttext'}{$img};
+                }
             }
         }
         $datatable .= '</td>';
@@ -2151,6 +2167,11 @@ sub display_color_options {
                 $datatable .='&nbsp;<input type="file" name="'.$role.'_'.$img.'" />';
             }
         }
+        if (($role eq 'login') && ($img ne 'login')) {
+            $datatable .= ('&nbsp;' x2).' <span class="LC_nobreak"><label>'.$choices->{'alttext'}.':'.
+                          '<input type="text" name="'.$role.'_alt_'.$img.'" size="10" value="'.$alttext.'" />'.
+                          '</label></span>';
+        }
         $datatable .= '</td></tr>';
     }
     $itemcount ++;
@@ -3688,6 +3709,41 @@ function toggleLastActiveDays(form) {
 ENDSCRIPT
 }
 
+sub autoenroll_javascript {
+    return <<"ENDSCRIPT";
+<script type="text/javascript">
+// <![CDATA[
+function toggleFailsafe(form) {
+    var radioname = 'autoenroll_failsafe';
+    var divid = 'autoenroll_failsafe_div';
+    var num = form.elements[radioname].length;
+    if (num) {
+        var setvis = '';
+        for (var i=0; i<num; i++) {
+            if (form.elements[radioname][i].checked) {
+                if ((form.elements[radioname][i].value == 'zero') || (form.elements[radioname][i].value == 'any')) {
+                    if (document.getElementById(divid)) {
+                        document.getElementById(divid).style.display = 'inline-block';
+                    }
+                    setvis = 1;
+                }
+                break;
+            }
+        }
+        if (!setvis) {
+            if (document.getElementById(divid)) {
+                document.getElementById(divid).style.display = 'none';
+            }
+        }
+    }
+    return;
+}
+// ]]>
+</script>
+
+ENDSCRIPT
+}
+
 sub saml_javascript {
     return <<"ENDSCRIPT";
 <script type="text/javascript">
@@ -3801,7 +3857,12 @@ ENDSCRIPT
 sub print_autoenroll {
     my ($dom,$settings,$rowtotal) = @_;
     my $autorun = &Apache::lonnet::auto_run(undef,$dom),
-    my ($defdom,$runon,$runoff,$coownerson,$coownersoff,$failsafe);
+    my ($defdom,$runon,$runoff,$coownerson,$coownersoff,
+        $failsafe,$autofailsafe,$failsafesty,%failsafechecked);
+    $failsafesty = 'none';
+    %failsafechecked = (
+        off => ' checked="checked"',
+    );
     if (ref($settings) eq 'HASH') {
         if (exists($settings->{'run'})) {
             if ($settings->{'run'} eq '0') {
@@ -3835,8 +3896,24 @@ sub print_autoenroll {
         if (exists($settings->{'sender_domain'})) {
             $defdom = $settings->{'sender_domain'};
         }
-        if (exists($settings->{'autofailsafe'})) {
-            $failsafe = $settings->{'autofailsafe'};
+        if (exists($settings->{'failsafe'})) {
+            $failsafe = $settings->{'failsafe'};
+            if ($failsafe eq 'zero') {
+                $failsafechecked{'zero'} = ' checked="checked"';
+                $failsafechecked{'off'} = '';
+                $failsafesty = 'inline-block';
+            } elsif ($failsafe eq 'any') {
+                $failsafechecked{'any'} = ' checked="checked"';
+                $failsafechecked{'off'} = '';
+            }
+            $autofailsafe = $settings->{'autofailsafe'};
+        } elsif (exists($settings->{'autofailsafe'})) {
+            $autofailsafe = $settings->{'autofailsafe'};
+            if ($autofailsafe ne '') {
+                $failsafechecked{'zero'} = ' checked="checked"';
+                $failsafe = 'zero';
+                $failsafechecked{'off'} = '';
+            }
         }
     } else {
         if ($autorun) {
@@ -3875,9 +3952,15 @@ sub print_autoenroll {
                   $coownersoff.' value="0" />'.&mt('No').'</label></span></td>'.
                   '</tr><tr>'.
                   '<td>'.&mt('Failsafe for no drops when institutional data missing').'</td>'.
-                  '<td class="LC_right_item"><span class="LC_nobreak">'.
-                  '<input type="text" name="autoenroll_failsafe"'.
-                  ' value="'.$failsafe.'" size="4" /></span></td></tr>';
+                  '<td class="LC_left_item"><span class="LC_nobreak">'.
+                  '<span class="LC_nobreak"><label><input type="radio" name="autoenroll_failsafe" value="off" onclick="toggleFailsafe(this.form)"'.$failsafechecked{'off'}.' />'.&mt('Not in use').'</label></span>&nbsp;&nbsp;&nbsp; '.
+                  '<span class="LC_nobreak"><label><input type="radio" name="autoenroll_failsafe" value="zero" onclick="toggleFailsafe(this.form)"'.$failsafechecked{'zero'}.' />'.&mt('Retrieved section enrollment is zero').'</label></span><br />'.
+                  '<span class="LC_nobreak"><label><input type="radio" name="autoenroll_failsafe" value="any" onclick="toggleFailsafe(this.form)"'.$failsafechecked{'any'}.' />'.&mt('Retrieved section enrollment is zero or greater').'</label></span>'.
+                  '<div class="LC_floatleft" style="display:'.$failsafesty.';" id="autoenroll_failsafe_div">'.
+                  '<span class="LC_nobreak">'.
+                  &mt('Threshold for number of students in section to drop: [_1]',
+                      '<input type="text" name="autoenroll_autofailsafe" value="'.$autofailsafe.'" size="4" />').
+                  '</span></div></td></tr>';
     $$rowtotal += 4;
     return $datatable;
 }
@@ -12792,13 +12875,18 @@ sub modify_colors {
             $domconfig->{$role} = {};
         }
         foreach my $img (@images) {
-            if (($role eq 'login') && (($img eq 'img') || ($img eq 'logo'))) {  
-                if (defined($env{'form.login_showlogo_'.$img})) {
-                    $confhash->{$role}{'showlogo'}{$img} = 1;
-                } else { 
-                    $confhash->{$role}{'showlogo'}{$img} = 0;
+            if ($role eq 'login') {
+                if (($img eq 'img') || ($img eq 'logo')) {  
+                    if (defined($env{'form.login_showlogo_'.$img})) {
+                        $confhash->{$role}{'showlogo'}{$img} = 1;
+                    } else { 
+                        $confhash->{$role}{'showlogo'}{$img} = 0;
+                    }
                 }
-            } 
+                if ($env{'form.login_alt_'.$img} ne '') {
+                    $confhash->{$role}{'alttext'}{$img} = $env{'form.login_alt_'.$img};
+                }
+            }
 	    if ( ! $env{'form.'.$role.'_'.$img.'.filename'} 
 		 && !defined($domconfig->{$role}{$img})
 		 && !$env{'form.'.$role.'_del_'.$img}
@@ -12873,15 +12961,29 @@ sub modify_colors {
                             $changes{$role}{'images'}{$img} = 1;
                         } 
                     }
-                    if (($role eq 'login') && (($img eq 'logo') || ($img eq 'img'))) {
-                        if (ref($domconfig->{'login'}{'showlogo'}) eq 'HASH') {
-                            if ($confhash->{$role}{'showlogo'}{$img} ne 
-                                $domconfig->{$role}{'showlogo'}{$img}) {
-                                $changes{$role}{'showlogo'}{$img} = 1; 
+                    if ($role eq 'login') {
+                        if (($img eq 'logo') || ($img eq 'img')) {
+                            if (ref($domconfig->{'login'}{'showlogo'}) eq 'HASH') {
+                                if ($confhash->{$role}{'showlogo'}{$img} ne 
+                                    $domconfig->{$role}{'showlogo'}{$img}) {
+                                    $changes{$role}{'showlogo'}{$img} = 1; 
+                                }
+                            } else {
+                                if ($confhash->{$role}{'showlogo'}{$img} == 0) {
+                                    $changes{$role}{'showlogo'}{$img} = 1;
+                                }
                             }
-                        } else {
-                            if ($confhash->{$role}{'showlogo'}{$img} == 0) {
-                                $changes{$role}{'showlogo'}{$img} = 1;
+                        }
+                        if ($img ne 'login') {
+                            if (ref($domconfig->{$role}{'alttext'}) eq 'HASH') {
+                                if ($confhash->{$role}{'alttext'}{$img} ne
+                                    $domconfig->{$role}{'alttext'}{$img}) {
+                                    $changes{$role}{'alttext'}{$img} = 1;
+                                }
+                            } else {
+                                if ($confhash->{$role}{'alttext'}{$img} ne '') {
+                                    $changes{$role}{'alttext'}{$img} = 1;
+                                }
                             }
                         }
                     }
@@ -12992,6 +13094,11 @@ sub default_change_checker {
             if ($confhash->{$role}{'showlogo'}{$img} == 0) {
                 $changes->{$role}{'showlogo'}{$img} = 1;
             }
+            if (ref($confhash->{$role}{'alttext'}) eq 'HASH') {
+                if ($confhash->{$role}{'alttext'}{$img} ne '') {
+                    $changes->{$role}{'alttext'}{$img} = 1;
+                }
+            }
         }
     }
     if ($confhash->{$role}{'font'}) {
@@ -13030,6 +13137,13 @@ sub display_colorchgs {
                             } else {
                                 $resulttext .= '<li>'.&mt("$choices{$item} set to not be displayed").'</li>';
                             }
+                        } elsif (($role eq 'login') && ($key eq 'alttext')) {
+                            if ($confhash->{$role}{$key}{$item} ne '') {
+                                $resulttext .= '<li>'.&mt("$choices{$key} for $choices{$item} set to [_1].",
+                                               $confhash->{$role}{$key}{$item}).'</li>';
+                            } else {
+                                $resulttext .= '<li>'.&mt("$choices{$key} for $choices{$item} deleted.").'</li>';
+                            }
                         } elsif ($confhash->{$role}{$item} eq '') {
                             $resulttext .= '<li>'.&mt("$choices{$item} set to default").'</li>';
                         } else {
@@ -15918,7 +16032,7 @@ sub modify_autoenroll {
     my %title = ( run => 'Auto-enrollment active',
                   sender => 'Sender for notification messages',
                   coowners => 'Automatic assignment of co-ownership to instructors of record (institutional data)',
-                  failsafe => 'Failsafe for no drops if institutional data missing for a section');
+                  autofailsafe => 'Failsafe for no drops if institutional data missing for a section');
     my @offon = ('off','on');
     my $sender_uname = $env{'form.sender_uname'};
     my $sender_domain = $env{'form.sender_domain'};
@@ -15928,17 +16042,23 @@ sub modify_autoenroll {
         $sender_domain = '';
     }
     my $coowners = $env{'form.autoassign_coowners'};
+    my $autofailsafe = $env{'form.autoenroll_autofailsafe'};
+    $autofailsafe =~ s{^\s+|\s+$}{}g;
+    if ($autofailsafe =~ /\D/) {
+        undef($autofailsafe);
+    }
     my $failsafe = $env{'form.autoenroll_failsafe'};
-    $failsafe =~ s{^\s+|\s+$}{}g;
-    if ($failsafe =~ /\D/) {
-        undef($failsafe);
+    unless (($failsafe eq 'zero') || ($failsafe eq 'any')) {
+        $failsafe = 'off';
+        undef($autofailsafe);
     }
     my %autoenrollhash =  (
                        autoenroll => { 'run' => $env{'form.autoenroll_run'},
                                        'sender_uname' => $sender_uname,
                                        'sender_domain' => $sender_domain,
                                        'co-owners' => $coowners,
-                                       'autofailsafe' => $failsafe,
+                                       'autofailsafe' => $autofailsafe,
+                                       'failsafe' => $failsafe,
                                 }
                      );
     my $putresult = &Apache::lonnet::put_dom('configuration',\%autoenrollhash,
@@ -15966,9 +16086,12 @@ sub modify_autoenroll {
         } elsif ($coowners) {
             $changes{'coowners'} = 1;
         }
-        if ($currautoenroll{'autofailsafe'} ne $failsafe) {
+        if ($currautoenroll{'autofailsafe'} ne $autofailsafe) {
             $changes{'autofailsafe'} = 1;
         }
+        if ($currautoenroll{'failsafe'} ne $failsafe) {
+            $changes{'failsafe'} = 1;
+        }
         if (keys(%changes) > 0) {
             $resulttext = &mt('Changes made:').'<ul>';
             if ($changes{'run'}) {
@@ -15989,11 +16112,24 @@ sub modify_autoenroll {
                 }
             }
             if ($changes{'autofailsafe'}) {
-                if ($failsafe ne '') {
-                    $resulttext .= '<li>'.&mt('Failsafe for no drops if institutional data missing for a section set to: [_1]',$failsafe).'</li>';
+                if ($autofailsafe ne '') {
+                    $resulttext .= '<li>'.&mt('Failsafe for no drops if institutional data missing for a section set to: [_1]',$autofailsafe).'</li>';
+                } else {
+                    $resulttext .= '<li>'.&mt('Failsafe for no drops if institutional data missing for a section not in use').'</li>';
+                }
+            }
+            if ($changes{'failsafe'}) {
+                if ($failsafe eq 'off') {
+                    unless ($changes{'autofailsafe'}) {
+                        $resulttext .= '<li>'.&mt('Failsafe for no drops if institutional data missing for a section not in use').'</li>';
+                    }
+                } elsif ($failsafe eq 'zero') {
+                    $resulttext .= '<li>'.&mt('Failsafe applies if retrieved section enrollment is zero').'</li>';
                 } else {
-                    $resulttext .= '<li>'.&mt('Failsafe for no drops if institutional data missing for a section: deleted');
+                    $resulttext .= '<li>'.&mt('Failsafe applies if retrieved section enrollment is zero or greater').'</li>';
                 }
+            }
+            if (($changes{'autofailsafe'}) || ($changes{'failsafe'})) {
                 &Apache::lonnet::get_domain_defaults($dom,1);
                 if (ref($lastactref) eq 'HASH') {
                     $lastactref->{'domdefaults'} = 1;
@@ -21169,7 +21305,7 @@ sub modify_wafproxy {
                 }
             }
             $output = &mt('Changes were made to Web Application Firewall/Reverse Proxy').'<ul>';
-            foreach my $item ('alias','remoteip','ipheader','trusted','vpnint','vpnext','sslopt') {
+            foreach my $item ('alias','saml','remoteip','ipheader','trusted','vpnint','vpnext','sslopt') {
                 if ($changes{$item}) {
                     if ($item eq 'alias') {
                         my $numaliased = 0;