--- loncom/interface/londocs.pm	2004/04/06 23:05:29	1.113
+++ loncom/interface/londocs.pm	2004/04/07 20:36:54	1.114
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.113 2004/04/06 23:05:29 albertel Exp $
+# $Id: londocs.pm,v 1.114 2004/04/07 20:36:54 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -258,11 +258,54 @@ sub group_import {
     return &storemap($coursenum, $coursedom, $folder.'.sequence');
 }
 
-sub editor {
-    my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
+sub breadcrumbs {
+    my ($where)=@_;
+    &Apache::lonhtmlcommon::clear_breadcrumbs();
+    if ($where =~ /^default/) {
+	&Apache::lonhtmlcommon::add_breadcrumb({'href'=>'/adm/coursedocs',
+				    'title'=>'Main Course Documents',
+				    'text' =>'Main Course Documents'});
+    } elsif ($where =~ /^supplemental/) {
+	&Apache::lonhtmlcommon::add_breadcrumb({'href'=>'/adm/coursedocs',
+				    'title'=>'Supplemental Course Documents',
+				    'text' =>'Supplemental Course Documents'});
+
+    } else {
+	&Apache::lonhtmlcommon::add_breadcrumb({'href'=>'/adm/coursedocs',
+						'title'=>$where,
+						'text' =>$where});
+    }
     if ($ENV{'form.foldername'}) {
-	$r->print('<h3>Folder: '.$ENV{'form.foldername'}.'</h3>');
+	my @folders;
+	if (defined($ENV{'form.folders'})) {
+	    @folders=@{$ENV{'form.folders'}};
+	}
+	@folders=(@folders,$ENV{'form.folder'},
+		  &Apache::lonnet::escape($ENV{'form.foldername'}));
+
+	my $folderpath;
+	while (@folders) {
+	    my $folder=shift(@folders);
+	    my $foldername=shift(@folders);
+	    if ($folderpath) {$folderpath.='&';}
+	    $folderpath.=$folder.'&'.$foldername;
+	    my $url='/adm/coursedocs?folderpath='.
+		&Apache::lonnet::escape($folderpath);
+	    &Apache::lonhtmlcommon::add_breadcrumb(
+		      {'href'=>$url,
+		       'title'=>&Apache::lonnet::unescape($foldername),
+		       'text'=>&Apache::lonnet::unescape($foldername)});
+		       
+						 
+	}
     }
+    return &Apache::lonhtmlcommon::breadcrumbs();
+}
+
+sub editor {
+    my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
+
+    $r->print(&breadcrumbs($folder));
     my $errtext='';
     my $fatal=0;
     ($errtext,$fatal)=
@@ -455,11 +498,13 @@ END
     my $uploaded=($url=~/^\/*uploaded\//);
     my $icon=&Apache::loncommon::icon($url);
     my $isfolder=0;
+    my $folderarg;
     if ($uploaded) {
        if ($extension eq 'sequence') {
 	  $icon=$iconpath.'/folder_closed.gif';
           $url=~/$coursenum\/([\/\w]+)\.sequence$/;
-          $url='/adm/coursedocs?folder='.$1;
+          $url='/adm/coursedocs?';
+	  $folderarg=$1;
           $isfolder=1;
        } else {
 	  $url=&Apache::lonnet::tokenwrapper($url);
@@ -478,8 +523,13 @@ END
 	$url=&Apache::lonnet::clutter($url);
 	$url.=(($url=~/\?/)?'&':'?').'symb='.&Apache::lonnet::escape($symb);
     }
-    if ($isfolder) { $url.='&foldername='.
-       &Apache::lonnet::escape($foldertitle); }
+    if ($isfolder) {
+	my $foldername=&Apache::lonnet::escape($foldertitle);
+	my $folderpath=$ENV{'form.folderpath'};
+	if ($folderpath) { $folderpath.='&' };
+	$folderpath.=$folderarg.'&'.$foldername;
+	$url.='folderpath='.&Apache::lonnet::escape($folderpath);
+    }
     $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'"><img src="'.$icon.
 	'" border="0"></a></td>'.
         "<td bgcolor='#FFFFBB'><a href='$url'>$title</a></td></tr>";
@@ -901,7 +951,13 @@ sub handler {
     my $events='';
     my $showdoc=0;
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-       ['folder','foldername']);
+					    ['folderpath']);
+    if ($ENV{'form.folderpath'}) {
+	my (@folderpath)=split('&',$ENV{'form.folderpath'});
+	$ENV{'form.foldername'}=&Apache::lonnet::unescape(pop(@folderpath));
+	$ENV{'form.folder'}=pop(@folderpath);
+	$ENV{'form.folders'}=\@folderpath;
+    }
     if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
        $showdoc=$1;
     }