--- loncom/interface/loncommon.pm	2021/10/18 22:29:20	1.1368
+++ loncom/interface/loncommon.pm	2021/11/15 22:36:37	1.1369
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1368 2021/10/18 22:29:20 raeburn Exp $
+# $Id: loncommon.pm,v 1.1369 2021/11/15 22:36:37 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1416,7 +1416,7 @@ sub help_open_menu {
 }
 
 sub top_nav_help {
-    my ($text) = @_;
+    my ($text,$linkattr) = @_;
     $text = &mt($text);
     my $stay_on_page = 1;
 
@@ -1430,7 +1430,7 @@ sub top_nav_help {
     if ($link) {
         return <<"END";
 $banner_link
-<a href="$link" title="$title">$text</a>
+<a href="$link" title="$title" $linkattr>$text</a>
 END
     } else {
         return '&nbsp;'.$text.'&nbsp;';
@@ -6266,7 +6266,8 @@ sub bodytag {
             Apache::lonmenu::utilityfunctions($httphost), 'start');
 
         unless ($args->{'no_primary_menu'}) {
-            my ($left,$right) = Apache::lonmenu::primary_menu($crstype,$ltimenu,$menucoll,$menuref);
+            my ($left,$right) = Apache::lonmenu::primary_menu($crstype,$ltimenu,$menucoll,$menuref,
+                                                              $args->{'links_disabled'});
 
             if ($env{'request.noversionuri'} =~ m{^/res/adm/pages/}) {
                 if ($dc_info) {
@@ -6298,7 +6299,8 @@ sub bodytag {
             unless ($args->{'no_inline_menu'}) {
                 $bodytag .= Apache::lonmenu::secondary_menu($httphost,$ltiscope,$ltimenu,
                                                             $args->{'no_primary_menu'},
-                                                            $menucoll,$menuref);
+                                                            $menucoll,$menuref,
+                                                            $args->{'links_disabled'});
             }
             $bodytag .= Apache::lonmenu::serverform();
             $bodytag .= Apache::lonhtmlcommon::scripttag('', 'end');
@@ -8375,6 +8377,18 @@ ul.LC_funclist li {
 		cursor:pointer;
 }
 
+.LCisDisabled {
+  cursor: not-allowed;
+  opacity: 0.5;
+}
+
+a[aria-disabled="true"] {
+  color: currentColor;
+  display: inline-block;  /* For IE11/ MS Edge bug */
+  pointer-events: none;
+  text-decoration: none;
+}
+
 pre.LC_wordwrap {
   white-space: pre-wrap;
   white-space: -moz-pre-wrap;
@@ -8963,6 +8977,9 @@ $args - additional optional args support
                                will contain https://<hostname> if server uses
                                https (as per hosts.tab), but request is for http
              hostname       -> hostname, originally from $r->hostname(), (optional).
+             links_disabled -> Links in primary and secondary menus are disabled
+                               (Can enable them once page has loaded - see lonroles.pm
+                               for an example).
 
 =back