--- loncom/xml/lonxml.pm	2009/11/30 21:17:41	1.501
+++ loncom/xml/lonxml.pm	2009/11/30 21:29:41	1.502
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.501 2009/11/30 21:17:41 raeburn Exp $
+# $Id: lonxml.pm,v 1.502 2009/11/30 21:29:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1612,7 +1612,7 @@ FULLPAGE
     }
 </script>
 FULLPAGE
-          if ($filetype eq 'html') {
+          if ($filetype eq 'html' || $filetype eq 'tex') {
               $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
               $dragmath_button = &Apache::lonhtmlcommon::dragmath_button('filecont',1);
           }
@@ -1742,12 +1742,25 @@ sub handler {
 
 
     my $file=&Apache::lonnet::filelocation("",$request->uri);
-    my $filetype;
-    if ($file =~ /\.(sty|css|js|txt)$/) {
+    my ($filetype,$breadcrumbtext);
+    if ($file =~ /\.(sty|css|js|txt|tex)$/) {
 	$filetype=$1;
     } else {
 	$filetype='html';
     }
+    if ($filetype eq 'sty') {
+        $breadcrumbtext = 'Style File Editor';
+    } elsif ($filetype eq 'js') {
+        $breadcrumbtext = 'Javascript Editor';
+    } elsif ($filetype eq 'css') {
+        $breadcrumbtext = 'CSS Editor';
+    } elsif ($filetype eq 'txt') {
+        $breadcrumbtext = 'Text Editor';
+    } elsif ($filetype eq 'tex') {
+        $breadcrumbtext = 'TeX Editor';
+    } else {
+        $breadcrumbtext = 'HTML Editor';
+    }
 
 #
 # Edit action? Save file.
@@ -1782,7 +1795,7 @@ ENDNOTFOUND
 		$filecontents=&createnewsty();
             } elsif ($filetype eq 'js') {
                 $filecontents=&createnewjs();
-            } elsif (($filetype ne 'css') && ($filetype ne 'txt')) {
+            } elsif ($filetype ne 'css' && $filetype ne 'txt' && $filetype ne 'tex') {
 		$filecontents=&createnewhtml();
 	    }
 	    $env{'form.editmode'}='Edit'; #force edit mode
@@ -1806,6 +1819,8 @@ ENDNOTFOUND
 	    # up if it did
 	        &Apache::structuretags::reset_problem_globals();
 	        &Apache::lonhomework::finished_parsing();
+            } elsif ($filetype eq 'tex') {
+                $result .= &Apache::lontexconvert::converted(\$filecontents);
             } else {
                 $result = $filecontents;
             }
@@ -1813,14 +1828,14 @@ ENDNOTFOUND
 						    ['rawmode']);
 	    if ($env{'form.rawmode'}) { $result = $filecontents; }
             if ($filetype ne 'html') {
-                my $nochgview = 1; 
+                my $nochgview = 1;
                 my $controls = '';
                     if ($env{'request.state'} eq 'construct') {
                         $controls = &Apache::loncommon::head_subbox(
                                         &Apache::loncommon::CSTR_pageheader()
                                        .&Apache::londefdef::edit_controls($nochgview));
                     }
-                if ($filetype ne 'sty') {
+                if ($filetype ne 'sty' && $filetype ne 'tex') {
                     $result =~ s/</&lt;/g;
                     $result =~ s/>/&gt;/g;
                     $result = '<table class="LC_sty_begin">'.
@@ -1833,7 +1848,7 @@ ENDNOTFOUND
                         $brcrum = [{'href' => &Apache::loncommon::authorspace(),
                                     'text' => 'Construction Space'},
                                    {'href' => '',
-                                    'text' => 'Editor'}];
+                                    'text' => $breadcrumbtext}];
                     } else {
                         $brcrum = ''; # FIXME: Where are we?
                     }
@@ -1873,7 +1888,7 @@ ENDNOTFOUND
                             'href' => &Apache::loncommon::authorspace(),
                             'text' => 'Construction Space'},
                            {'href' => '',
-                            'text' => 'HTML Editor'}];
+                            'text' => $breadcrumbtext}];
                 $header = &Apache::loncommon::head_subbox(
                               &Apache::loncommon::CSTR_pageheader());
             }