--- loncom/interface/lonsyllabus.pm	2013/05/15 17:31:52	1.124
+++ loncom/interface/lonsyllabus.pm	2013/05/15 17:47:57	1.125
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Syllabus
 #
-# $Id: lonsyllabus.pm,v 1.124 2013/05/15 17:31:52 raeburn Exp $
+# $Id: lonsyllabus.pm,v 1.125 2013/05/15 17:47:57 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -71,6 +71,7 @@ sub handler {
     }
 # ------------------------------------- There is such a course, get environment
     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
+    my $crstype = &Apache::loncommon::course_type();
 
 # ------------------------------------------------------------ Print the screen
 
@@ -117,24 +118,26 @@ sub handler {
         }
         unless ($allowed && $forceedit) {
             my $file=&Apache::lonnet::filelocation("",$item);
-            if ($file =~ /\.(sty|css|js|txt|tex|html?)$/) {  
-                my $filetype;
-                if ($file =~ /\.(sty|css|js|txt|tex)$/) {
-                    $filetype=$1;
-                } else {
-                    $filetype='html';
-                }
-                my $result = '';
+            if ($file =~ /\.(tex|x?html?)$/) {  
+                my $filetype = $1;
                 my $filecontents=&Apache::lonnet::getfile($file);
                 if ($filecontents eq -1) {
                     $r->print(&mt('Syllabus file unavailable'));
-                } elsif ($filetype eq 'html') {
+                } elsif ($filetype eq 'tex') {
+                    my $result = &Apache::lontexconvert::converted(\$filecontents,
+                                                                $env{'form.texengine'});
+                    my %args;
+                    &get_breadcrumbs($cdom,$cnum,$crstype,\%args);
+                    $r->print(&Apache::loncommon::start_page("Syllabus",undef,\%args).
+                              $result.
+                              &Apache::loncommon::end_page());
+                } else {
                     my %mystyle;
                     &Apache::structuretags::reset_problem_globals();
                     my $oldfile = $env{'request.filename'};
                     $env{'request.filename'} = $item;
-                    $result = &Apache::lonxml::xmlparse($r,'web',$filecontents,
-                                                        '',%mystyle);
+                    my $result = &Apache::lonxml::xmlparse($r,'web',$filecontents,
+                                                           '',%mystyle);
                     &Apache::structuretags::reset_problem_globals();
                     &Apache::lonhomework::finished_parsing();
                     $env{'request.filename'} = $oldfile;
@@ -153,7 +156,6 @@ sub handler {
         }
     }
 
-    my $crstype = &Apache::loncommon::course_type();
 
 # ------------------------------ The buck stops here: internal syllabus display
 # --------------------------------------------------------- The syllabus fields
@@ -664,7 +666,26 @@ ENDSCRIPT
               {href=>$r->uri,
                text=>"Course syllabus"});
         $args->{'bread_crumbs'} = $brcrum;
-    } elsif ($env{'form.folderpath'} =~ /^supplemental/) {
+    } else {
+        &get_breadcrumbs($cdom,$cnum,$crstype,$args);
+    }
+    if ($allowed) {
+        my %loaditem = (
+                         onload => 'setTemplateBoxes();',
+                       );
+        $args->{'add_entries'} = \%loaditem;
+    }
+    my $start_page =
+        &Apache::loncommon::start_page("Syllabus", $rss_link.$js,$args);
+    if ($start_page) {
+        $r->print($start_page);
+    }
+}
+
+sub get_breadcrumbs{
+    my ($cdom,$cnum,$crstype,$args) = @_;
+    return unless (ref($args) eq 'HASH');
+    if ($env{'form.folderpath'} =~ /^supplemental/) {
         my $title = $env{'form.title'};
         if ($title eq '') {
             $title = &mt('Syllabus');
@@ -685,17 +706,7 @@ ENDSCRIPT
                                       ];
         }
     }
-    if ($allowed) {
-        my %loaditem = (
-                         onload => 'setTemplateBoxes();',
-                       );
-        $args->{'add_entries'} = \%loaditem;
-    }
-    my $start_page =
-        &Apache::loncommon::start_page("Syllabus", $rss_link.$js,$args);
-    if ($start_page) {
-        $r->print($start_page);
-    }
+    return;
 }
 
 sub chooser {
@@ -817,8 +828,16 @@ sub syllabus_file_info {
     my $absurl = $protocol.'://'.&Apache::lonnet::hostname($lonhost).$item;
     my ($filename) = ($item =~ m{([^/]+)$});
     my $file=&Apache::lonnet::filelocation("",$item);
-    my $depbutton;
-    if ($file =~ /\.html?$/) {
+    my ($depbutton,$filetype,$editable);
+    if ($file =~ /\.(xhtml|xml|tex|html|htm)$/) {
+        $filetype=$1;
+    }
+    if ($filetype) {
+        unless ($filetype eq 'tex') {
+            $filetype='html';
+        }
+    }
+    if ($filetype eq 'html') {
         my $filecontents=&Apache::lonnet::getfile($file);
         unless ($filecontents eq -1) {
             my $mm = new File::MMagic;
@@ -833,12 +852,13 @@ sub syllabus_file_info {
                                                                  \%codebase,
                                                                  {'context' => 'rewrites',
                                                                   'ignore_remote_references' => 1,});
-                $depbutton = (' ' x 3).
-                             &editfile_button($item,$context).
-                             &editbutton_js();
+                $editable = 1;
             }
         }
     }
+    $depbutton = (' ' x 3).
+                 &editfile_button($item,$context,$editable).
+                 &editbutton_js();
     return ($absurl,$filename,$depbutton);
 }
 
@@ -1232,7 +1252,7 @@ END
 
 sub update_syllabus_env {
     my ($cdom,$cnum,$courseenv,$saved,$uploaded,$minimal,$external) = @_;
-    return unless(ref($courseenv) eq 'HASH');
+    return ($uploaded,$minimal,$external) unless(ref($courseenv) eq 'HASH');
     my $now = time;
     my (@envkeys,%storehash);
     if ($saved eq 'template') {
@@ -1307,7 +1327,7 @@ sub home_http_host {
     if ($home ne 'no_host') {
         my $protocol = $Apache::lonnet::protocol{$home};
         $protocol = 'http' if ($protocol ne 'https');
-        return $protocol.'//'.$home;
+        return $protocol.'://'.$home;
     }
     return;
 }
@@ -1397,15 +1417,20 @@ sub return_to_editor {
 }
 
 sub editfile_button {
-    my ($url,$context) = @_;
+    my ($url,$context,$editable) = @_;
     my $edittext=&mt('Edit');
     my $deltext=&mt('Delete');
-    return <<"END";
-                <input type="button" value="$edittext" onclick="javascript:gotoeditor('$url');" name="edit_$context" />
-                &nbsp;&nbsp;&nbsp;
-                <input type="button" value="$deltext" onclick="javascript:dodelete('$context');" name="del_$context" />
+    my $output;
+    if ($editable) {
+        $output = '
+                <input type="button" value="'.$edittext.'" onclick="javascript:gotoeditor('."'$url'".');" name="edit_'.$context.'" />
+                &nbsp;&nbsp;&nbsp;';
+    }
+    $output .= '
+                <input type="button" value="'.$deltext.'" onclick="javascript:dodelete('."'$context'".');" name="del_'.$context.'" />
                 <input type="hidden" value="" name="deleteuploaded" />
-END
+    ';
+    return $output;
 }
 
 sub editbutton_js {