--- rat/lonsequence.pm	2021/06/24 21:22:27	1.48.2.3
+++ rat/lonsequence.pm	2018/04/14 17:52:53	1.50
@@ -2,7 +2,7 @@
 #
 # Sequence Handler
 #
-# $Id: lonsequence.pm,v 1.48.2.3 2021/06/24 21:22:27 raeburn Exp $
+# $Id: lonsequence.pm,v 1.50 2018/04/14 17:52:53 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,6 +36,7 @@ use Apache::lonnet;
 use Apache::Constants qw(:common :http REDIRECT);
 use GDBM_File;
 use LONCAPA::map();
+use LONCAPA::ltiutils;
 use LONCAPA;
 use Apache::lonpageflip();
 use Apache::loncommon();
@@ -245,41 +246,48 @@ sub handler {
                }
            }
 
-           &Apache::loncommon::content_type($r,'text/html');
-           $r->send_http_header;
-
-           my $mapurl = &Apache::lonnet::declutter($requrl);
-           my $maptitle = &Apache::lonnet::gettitle($mapurl);
-           my @crumbs = ({text => $maptitle, no_mt => 1});
-           my $args = {'bread_crumbs' => \@crumbs,
-                       'bread_crumbs_nomenu' => 1};
-
            # Create the nav map
            my $navmap = Apache::lonnavmaps::navmap->new();
 
            if (ref($navmap)) {
                # renderer call
                if (&Apache::lonnet::is_on_map($requrl)) {
-                   @crumbs = ({text  => $crstype.' Contents',
-                               href  => "javascript:gopost('/adm/navmaps','')"});
-                   my $res = $navmap->getResourceByUrl($mapurl);
-                   if (ref($res)) {
-                       my $symb = $res->symb();
-                       if ($symb) {
-                           my ($parent) = &Apache::lonnet::decode_symb($res->symb());
-                           if ($parent ne $env{'course.'.$env{'request.course.id'}.'.url'}) {
-                               my @mapcrumbs = $navmap->recursed_crumbs($parent);
-                               if (@mapcrumbs) {
-                                   push(@crumbs,@mapcrumbs);
+                   my ($ltiscope,$ltiuri);
+                   if (($env{'request.lti.login'}) && ($env{'request.lti.uri'})) {
+                       my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+                       my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+                       ($ltiscope,$ltiuri) = &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},$cdom,$cnum);
+                   }
+                   my $mapurl = &Apache::lonnet::declutter($requrl);
+                   my @crumbs;
+                   unless ($ltiscope eq 'resource') {
+                       unless ($ltiscope eq 'map') {
+                           @crumbs = ({text  => $crstype.' Contents',
+                                       href  => "javascript:gopost('/adm/navmaps','')"});
+                       }
+                       my $res = $navmap->getResourceByUrl($mapurl);
+                       if (ref($res)) {
+                           my $symb = $res->symb();
+                           if ($symb) {
+                               my ($parent) = &Apache::lonnet::decode_symb($res->symb());
+                               if (($parent ne $env{'course.'.$env{'request.course.id'}.'.url'}) &&
+                                   !(($ltiscope eq 'map') && ($requrl eq $ltiuri))) {
+                                   my @mapcrumbs = $navmap->recursed_crumbs($parent);
+                                   if (@mapcrumbs) {
+                                       push(@crumbs,@mapcrumbs);
+                                   }
                                }
+                               $env{'request.symb'} = $symb;
                            }
-                           $env{'request.symb'} = $symb;
                        }
                    }
+                   my $maptitle = &Apache::lonnet::gettitle($mapurl);
                    push(@crumbs,{text => $maptitle, no_mt => 1});
-                   $args = {'bread_crumbs' => \@crumbs,
-                            'bread_crumbs_nomenu' => 1,
-                            'no_auto_mt_title' => 1};
+                   my $args = {'bread_crumbs' => \@crumbs,
+                               'bread_crumbs_nomenu' => 1};
+                   &Apache::loncommon::content_type($r,'text/html');
+                   $r->send_http_header;
+
                    $r->print(&Apache::loncommon::start_page($maptitle,undef,$args));
 
                    my $renderArgs = { 'cols'                    => [0,1,2,3],
@@ -299,27 +307,14 @@ sub handler {
 
                    # If no resources were found let the user know.
                    if ($renderArgs->{'counter'} == 0) {
-                       $r->print('<p class="LC_info">'.
-                                 &mt('No items found in folder').
-                                 '</p>');
+                       $r->print("<p><span class=\"LC_info\">".
+                                 &mt("This folder is empty.")."</span></p>");
                    }
                    $r->print(&Apache::loncommon::end_page());
-               } else {
-                   $r->print(&Apache::loncommon::start_page($maptitle,undef,$args).
-                             '<p class="LC_info">'.
-                             &mt('Folder no longer appears to be a part of the course').
-                             '</p>'.
-                             &Apache::loncommon::end_page());
+                   $r->rflush();
+                   return OK;
                }
-           } else {
-               $r->print(&Apache::loncommon::start_page($maptitle,undef,$args).
-                         '<p class="LC_warning">'.
-                         &mt('Error: could not determine contents of folder').
-                         '</p>'.
-                         &Apache::loncommon::end_page());
            }
-           $r->rflush();
-           return OK;
        }
    }
 
@@ -405,12 +400,8 @@ sub handler {
       if ($is_encrypted) {
           $showdisurl = &Apache::lonenc::encrypted($disurl);
       }
-      if ($disurl =~ m{^/adm/navmaps(\?|$)}) {
-          &Apache::lonnet::symblist($requrl,$disurl => [$disurl,$dismapid]);
-      } else {
-          &Apache::lonnet::symblist($requrl,$disurl => [$disurl,$dismapid],
-                                    'last_known' => [$disurl,$dismapid]);
-      }
+      &Apache::lonnet::symblist($requrl,$disurl => [$disurl,$dismapid],
+				'last_known' => [$disurl,$dismapid]); 
       &Apache::loncommon::content_type($r,'text/html');
       $r->header_out(Location => &Apache::lonnet::absolute_url($ENV{'SERVER_NAME'}).
                                  $showdisurl);