--- loncom/interface/lonnavdisplay.pm	2025/05/28 04:40:55	1.22.4.10.2.6
+++ loncom/interface/lonnavdisplay.pm	2022/10/29 18:13:28	1.41
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Display Handler
 #
-# $Id: lonnavdisplay.pm,v 1.22.4.10.2.6 2025/05/28 04:40:55 raeburn Exp $
+# $Id: lonnavdisplay.pm,v 1.41 2022/10/29 18:13:28 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -39,7 +39,7 @@ use Apache::lonnet;
 use Apache::lonlocal;
 use Apache::londocs();
 use Apache::lonuserstate;
-use LONCAPA;
+use LONCAPA::ltiutils;
 
 sub handler {
     my $r = shift;
@@ -55,7 +55,7 @@ sub real_handler {
         return OK;
     }
 
-    # Check for critical messages and redirect if present.
+    # Check for critical messages and redirect if present.  
     my ($redirect,$url) = &Apache::loncommon::critical_redirect(300,'contents');
     if ($redirect) {
         &Apache::loncommon::content_type($r,'text/html');
@@ -85,7 +85,7 @@ sub real_handler {
         $cnum = $env{'course.'.$cid.'.num'};
         $cdom = $env{'course.'.$cid.'.domain'};
     }
-    if (($result eq 'main') || ($result eq 'both')) {    
+    if (($result eq 'main') || ($result eq 'both')) {
         &Apache::loncommon::content_type($r,'text/html');
         $r->send_http_header;
         &startpage($r);
@@ -126,11 +126,39 @@ ENDCLOSE
         }
     }
 
+    my $course_type = &Apache::loncommon::course_type();
+    if (($course_type eq 'Placement') && (!$env{'request.role.adv'})) { 
+        my $furl = &Apache::lonpageflip::first_accessible_resource();
+        if ($result eq 'update') {
+            &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+            $r->print($closure.&Apache::loncommon::end_page());
+            return OK;
+        } else {
+            &Apache::loncommon::content_type($r,'text/html');
+            $r->header_out(Location => $furl);
+            return REDIRECT;
+        }
+    }
+
+    if ($env{'request.lti.login'}) {
+        if ($env{'request.lti.uri'} ne '') {
+            my $cid = $env{'request.course.id'};
+            my $cnum = $env{'course.'.$cid.'.num'};
+            my $cdom = $env{'course.'.$cid.'.domain'};
+            my ($scope,$url) = &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},$cdom,$cnum);
+            if (($scope eq 'map') || ($scope eq 'resource')) {
+                &Apache::loncommon::content_type($r,'text/html');
+                $r->header_out(Location => $url);
+                return REDIRECT;
+            }
+        }
+    }
+
     # Create the nav map
     my $navmap = Apache::lonnavmaps::navmap->new();
 
     if (!defined($navmap)) {
-        if (($result eq 'main') || ($result eq 'both')) {
+        if ($result eq 'update') {
             &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
             $r->print($closure.&Apache::loncommon::end_page());
         }
@@ -140,7 +168,7 @@ ENDCLOSE
         return HTTP_NOT_ACCEPTABLE;
     }
 
-    if (($result eq 'main') || ($result eq 'both')) {
+    if ($result eq 'update') {
         $r->rflush();
         &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
         $r->print($closure);
@@ -153,7 +181,7 @@ ENDCLOSE
     }
 
     &startContentScreen($r,'navmaps');
-    unless (($result eq 'main') || ($result eq 'both')) {
+    unless ($result eq 'update') {
         $r->rflush();
     }
 
@@ -317,88 +345,11 @@ ENDCLOSE
     # If no resources were printed, print a reassuring message so the
     # user knows there was no error.
     if ($renderArgs->{'counter'} == 0) {
-        my $noresmsg;
         if ($showOnlyHomework) {
-            $noresmsg = &mt('All homework is currently completed.');
+            $r->print("<p><span class=\"LC_info\">".&mt("All homework is currently completed.")."</span></p>");
         } else { # both jumpToFirstHomework and normal use the same: course must be empty
-            $noresmsg = &mt('This course is empty.');
-            if (($renderArgs->{'deeplinknolist'}) &&
-                ($env{'request.course.deeponlyprot'})) {
-                my ($linkprot,$currmatch,$othermatches,@names);
-                if ($env{'request.linkprot'}) {
-                    ($linkprot) = split(/:/,$env{'request.linkprot'});
-                }
-                foreach my $launcher (split(/&/,$env{'request.course.deeponlyprot'})) {
-                    my ($name,$itemnums) = split(/:/,$launcher);
-                    my @nums = split(/,/,$itemnums);
-                    if (($linkprot) &&
-                        (grep(/^\Q$linkprot\E$/,@nums))) {
-                        $currmatch = &LONCAPA::unescape($name);
-                        if (@nums > 1) {
-                            $othermatches = 1;
-                        }
-                    } else {
-                        push(@names,&LONCAPA::unescape($name));
-                    }
-                }
-                my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-                my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-                my $has_supp = &Apache::lonnet::has_unhidden_suppfiles($cnum,$cdom);
-                if ($linkprot) {
-                    if ($currmatch) {
-                        if ($has_supp) {
-                            $noresmsg = &mt('No main content available when accessed using the link you followed from [_1].',
-                                            $currmatch);
-                        } else {
-                            $noresmsg = &mt('No content available when accessed using the link you followed from [_1].',
-                                            $currmatch);
-                        }
-                        if ($othermatches) {
-                            $noresmsg = '<br />';
-                            if ($has_supp) {
-                                $noresmsg .= &mt('Main content may be available by following a different link from [_1].',
-                                                 $currmatch);
-                            } else {
-                                $noresmsg .= &mt('Content may be available by following a different link from [_1].',
-                                                 $currmatch);
-                            }
-                        }
-                    } else {
-                        if ($has_supp) {
-                            $noresmsg = &mt('No main content available using the link you followed.');
-                        } else {
-                            $noresmsg = &mt('No content available using the link you followed.');
-                        }
-                    }
-                } elsif (@names > 0) {
-                    if ($has_supp) {
-                        $noresmsg = &mt('No main content available from direct login to this course.');
-                    } else {
-                        $noresmsg = &mt('No content available from direct login to this course.');
-                    }
-                }
-                if (@names == 1) {
-                    $noresmsg .= '<br />';
-                    if ($has_supp) {
-                        $noresmsg .= &mt('Main content is likely available by following links from [_1]',
-                                         $names[0]);
-                    } else {
-                        $noresmsg .= &mt('Content is likely available by following links from [_1]',
-                                         $names[0]);
-                    }
-                } elsif (@names > 1) {
-                    $noresmsg .= '<br />';
-                    if ($has_supp) {
-                        $noresmsg .= &mt('Main content is likely available by following links from the following: [_1]',
-                                         join(', ',@names));
-                    } else {
-                        $noresmsg .= &mt('Content is likely available by following links from the following: [_1]',
-                                         join(', ',@names));
-                    }
-                }
-            }
+            $r->print("<p><span class=\"LC_info\">".&mt("This course is empty.")."</span></p>");
         }
-        $r->print('<p><span class="LC_info">'.$noresmsg.'</span></p>');
     }
     &endContentScreen($r);
     $r->print(&Apache::loncommon::end_page());
@@ -418,7 +369,8 @@ sub startpage {
                    no_mt => 1},
                  ];
     my $args = {'bread_crumbs' => $brcrum};
-    $r->print(&Apache::loncommon::start_page($title,undef,$args).
+    my $start_page = &Apache::loncommon::start_page($title,undef,$args);
+    $r->print($start_page.
               '<script type="text/javascript">'."\n".
               '// <![CDATA['."\n".
               'window.focus();'."\n".
@@ -444,6 +396,7 @@ sub startContentScreen {
         $r->print('<li '.(($mode eq 'supplemental')?' class="active"':'').'><a href="/adm/supplemental"><b>'.&mt('Supplemental Content').'</b></a></li>');
     }
     $r->print('<li'.(($mode eq 'coursesearch')?' class="active"':'').'><a href="/adm/searchcourse"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Search').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n");
+    $r->print('<li'.(($mode eq 'courseindex')?' class="active"':'').'><a href="/adm/indexcourse"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Index').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n");
     $r->print("\n".'</ul>'."\n");
     $r->print('<div class="LC_Box" style="clear:both;margin:0;"><div id="maincoursedoc" style="margin:0 0;padding:0 0;"><div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">');
 }