--- loncom/interface/portfolio.pm	2005/02/17 08:29:43	1.75
+++ loncom/interface/portfolio.pm	2005/04/12 01:15:46	1.83
@@ -29,12 +29,14 @@ use Apache::lonnet;
 use Apache::lontexconvert;
 use Apache::lonfeedback;
 use Apache::lonlocal;
+use Apache::lonnet;
 
 # receives a file name and path stub from username/userfiles/portfolio/
 # returns an anchor tag consisting encoding filename and currentpath
 sub make_anchor {
-    my ($filename, $current_path, $current_mode, $field_name) = @_;
-    my $anchor = '<a href="/adm/portfolio?selectfile='.$filename.'&currentpath='.$current_path.'&mode='.$current_mode.'&fieldname='.$field_name.'">'.$filename.'</a>';
+    my ($filename, $current_path, $current_mode, $field_name, $continue_select) = @_;
+    if ($continue_select ne 'true') {$continue_select = 'false'};
+    my $anchor = '<a href="/adm/portfolio?selectfile='.$filename.'&currentpath='.$current_path.'&mode='.$current_mode.'&continue='.$continue_select.'&fieldname='.$field_name.'">'.$filename.'</a>';
     return $anchor;
 }
 my $dirptr=16384;
@@ -46,9 +48,9 @@ sub display_common {
     my $displayOut = '<form method="post" enctype="multipart/form-data">';
     $displayOut .= '<input name="uploaddoc" type="file" />'.
         '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
-        '<input type="hidden" name="action" value="'.$ENV{"form.action"}.'" />'.
-        '<input type="hidden" name="fieldname" value="'.$ENV{"form.fieldname"}.'" />'.
-        '<input type="hidden" name="mode" value="'.$ENV{"form.mode"}.'" />'. 
+        '<input type="hidden" name="action" value="'.$env{"form.action"}.'" />'.
+        '<input type="hidden" name="fieldname" value="'.$env{"form.fieldname"}.'" />'.
+        '<input type="hidden" name="mode" value="'.$env{"form.mode"}.'" />'. 
         '<input type="submit" name="storeupl" value="Upload" />'.
         '</form>';
     $r->print($displayOut);
@@ -56,25 +58,25 @@ sub display_common {
     $displayOut = '<form method="post">';
     $displayOut .= '<input name="newdir" type="input" />'.
         '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
-        '<input type="hidden" name="action" value="'.$ENV{"form.action"}.'" />'.
-        '<input type="hidden" name="fieldname" value="'.$ENV{"form.fieldname"}.'" />'.
-        '<input type="hidden" name="mode" value="'.$ENV{"form.mode"}.'" />'. 
+        '<input type="hidden" name="action" value="'.$env{"form.action"}.'" />'.
+        '<input type="hidden" name="fieldname" value="'.$env{"form.fieldname"}.'" />'.
+        '<input type="hidden" name="mode" value="'.$env{"form.mode"}.'" />'. 
         '<input type="submit" name="createdir" value="'.&mt("Create Directory").'" />'.
         '</form>';
     $r->print($displayOut);
     $r->print('</td></tr></table>');
     my @tree = split (/\//,$current_path);
-    $r->print('<font size="+2">'.&make_anchor('portfolio','/',$ENV{"form.mode"},$ENV{"form.fieldname"}).'/');
+    $r->print('<font size="+2">'.&make_anchor('portfolio','/',$env{"form.mode"},$env{"form.fieldname"},$env{"form.continue"}).'/');
     if (@tree > 1){
         my $newCurrentPath = '';
         for (my $i = 1; $i< @tree; $i++){
             $newCurrentPath .= $tree[$i].'/';
-            $r->print(&make_anchor($tree[$i],'/'.$newCurrentPath, $ENV{"form.mode"},$ENV{"form.fieldname"}).'/');
+            $r->print(&make_anchor($tree[$i],'/'.$newCurrentPath, $env{"form.mode"},$env{"form.fieldname"}, $env{"form.continue"}).'/');
         }
     }
     $r->print('</font>');
     &Apache::lonhtmlcommon::store_recent('portfolio',$current_path,$current_path);
-    $r->print('<br /><form method=post action="/adm/portfolio?mode='.$ENV{"form.mode"}.'&fieldname='.$ENV{"form.fieldname"}.'">'.
+    $r->print('<br /><form method=post action="/adm/portfolio?mode='.$env{"form.mode"}.'&fieldname='.$env{"form.fieldname"}.'">'.
 	      &Apache::lonhtmlcommon::select_recent('portfolio','currentpath',
 						    'this.form.submit();'));
     $r->print("</form>");
@@ -83,7 +85,14 @@ sub display_directory {
     my ($r,$current_path,$is_empty,$dir_list)=@_;
     my $iconpath= $r->dir_config('lonIconsURL') . "/";
     my $display_out;
-    my %locked_files = &Apache::lonnet::get_marked_as_readonly_hash ($ENV{'user.domain'},$ENV{'user.name'});
+    my $select_mode;
+    my $checked_files;
+    my %locked_files = &Apache::lonnet::get_marked_as_readonly_hash ($env{'user.domain'},$env{'user.name'});
+    if ($env{"form.mode"} eq 'selectfile'){
+	&select_files($r);
+	$checked_files =&Apache::lonnet::files_in_path($env{'user.name'},$env{'form.currentpath'});
+	$select_mode = 'true';
+    } 
     if ($is_empty && ($current_path ne '/')) {
         $display_out = '<form method="post" action="/adm/portfolio">'.
         '<input type="hidden" name="action" value="deletedir" />'.
@@ -95,76 +104,17 @@ sub display_directory {
         $r->print($display_out);
 	return;
     }
-    $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
+    if ($select_mode eq 'true') {
+        $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
+            '<tr><th>Select</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
+        $r->print('<form method="post" name="checkselect" action="/adm/portfolio">');
+    } else {
+        $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
             '<tr><th colspan="2">Actions</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
-    my $href_location="/uploaded/$ENV{'user.domain'}/$ENV{'user.name'}/portfolio$current_path";
-    $r->print('<form method="post" action="/adm/portfolio">');
-    foreach my $line (sort 
-		      { 
-			  my ($afile)=split('&',$a,2);
-			  my ($bfile)=split('&',$b,2);
-			  return (lc($afile) cmp lc($bfile));
-		      } (@$dir_list)) {
-    	#$strip holds directory/file name
-    	#$dom 
-    	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
-    	if (($filename ne '.') && ($filename ne '..')) {
-            if ($dirptr&$testdir) {
-                $r->print('<tr bgcolor="#FFAA99"><td colspan="2"><img src="'.$iconpath.'folder_closed.gif"></td>');
-                $r->print('<td>Go to ...</td>');
-                $r->print('<td>'.&make_anchor($filename.'/',$current_path.$filename.'/',$ENV{'form.mode'},$ENV{"form.fieldname"}).'</td>'); 
-                $r->print('</tr>'); 
-            } else {
-                $r->print('<tr bgcolor="#CCCCFF">');
-                if (exists $locked_files{$current_path.$filename}){
-                    $r->print('<td colspan="2">Locked</td>');
-                } else {
-                    $r->print('<td><input type="checkbox" name="selectfile" value="'.$filename.'" />
-                        <a href="/adm/portfolio?rename='.$filename.'&amp;currentpath='.$current_path.'">Rename</a></td>
-                        <td><a href="/adm/portfolio'.$current_path.$filename.'.meta">Meta</a>
-                        </td>');
-                }
-                $r->print('<td><img src="'.$iconpath.'unknown.gif"></td>');
-                $r->print('<td><a href="'.$href_location.$filename.'">'.
-			    $filename.'</a></td>'); 
-                $r->print('<td>'.$size.'</td>');
-                $r->print('<td>'.&Apache::lonlocal::locallocaltime($mtime).'</td>');
-                $r->print('</tr>'); 
-            }
-        }
-    }
-#   <tr bgcolor="#FFAA99"> pink bg 
-#   <tr bgcolor="#CCCCFF"> blue bg            
-#   $r->print(&display_directory($current_path, $currentFile, @dir_list));
-#    $r->print('</td>><td>');
-#   $r->print(&display_actions($current_path, $currentFile, $isEmpty));
-    $r->print('</table>
-    <input type="submit" name="doit" value="Delete Checked Files" />
-    <input type="hidden" name="action" value="delete" />
-    <input type="hidden" name="currentpath" value="'.$current_path.'" />
-    </form>');
-}
-sub display_file_select {
-    my ($r,$current_path,$is_empty,$dir_list)=@_;
-    my $iconpath= $r->dir_config('lonIconsURL') . "/";
-    my $display_out;
-    my $checked_files = &Apache::lonnet::files_in_path($ENV{'user.name'}, $ENV{'form.currentpath'});
-    if ($is_empty && ($current_path ne '/')) {
-        $display_out = '<form method="post" action="/adm/portfolio">'.
-        '<input type="hidden" name="action" value="deletedir" />'.
-        '<input type="submit" name="deletedir" value="'.&mt("Delete Directory").'" />'.
-        '<input type="hidden" name="selectfile" value="" />'.
-        '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
-
-        '</form>';
-        
-        $r->print($display_out);
-	return;
+        $r->print('<form method="post" action="/adm/portfolio">');
     }
-    $r->print('<table border="0" cellspacing="2" cellpadding="2">'.
-            '<tr><th>Select</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
-    my $href_location="/uploaded/$ENV{'user.domain'}/$ENV{'user.name'}/portfolio$current_path";
-    $r->print('<form method="post" name="checkselect" action="/adm/portfolio">');
+    my $href_location="/uploaded/$env{'user.domain'}/$env{'user.name'}/portfolio$current_path";
+    my $href_edit_location="/editupload/$env{'user.domain'}/$env{'user.name'}/portfolio$current_path";
     foreach my $line (sort 
 		      { 
 			  my ($afile)=split('&',$a,2);
@@ -175,19 +125,34 @@ sub display_file_select {
     	#$dom 
     	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
     	$filename =~ s/\s+$//;
-    	if (($filename ne '.') && ($filename ne '..')) {
+    	if (($filename ne '.') && ($filename ne '..') && ($filename !~ /\.meta$/ )) {
             if ($dirptr&$testdir) {
-                $r->print('<tr bgcolor="#FFAA99"><td><img src="'.$iconpath.'folder_closed.gif"></td>');
+                if ($select_mode eq 'true'){
+                    $r->print('<tr bgcolor="#FFAA99"><td><img src="'.$iconpath.'folder_closed.gif"></td>');
+                } else {
+                    $r->print('<tr bgcolor="#FFAA99"><td colspan="2"><img src="'.$iconpath.'folder_closed.gif"></td>');
+                }
                 $r->print('<td>Go to ...</td>');
-                $r->print('<td>'.&make_anchor($filename.'/',$current_path.$filename.'/',$ENV{'form.mode'},$ENV{"form.fieldname"}).'</td>'); 
+                $r->print('<td>'.&make_anchor($filename.'/',$current_path.$filename.'/',$env{'form.mode'},$env{"form.fieldname"},$env{'form.continue'}).'</td>'); 
                 $r->print('</tr>'); 
             } else {
                 $r->print('<tr bgcolor="#CCCCFF">');
-                $r->print('<td><input type="checkbox" name="selectfile" value="'.$filename.'"'); 
-                if ($$checked_files{$filename} eq 'selected') {
-                    $r->print("CHECKED");
+                if ($select_mode eq 'true'){
+                    $r->print('<td><input type="checkbox" name="checkfile" value="'.$filename.'"'); 
+                    if ($$checked_files{$filename} eq 'selected') {
+                        $r->print("CHECKED");
+                    }
+                    $r->print('></td>');
+                } else {
+                    if (exists $locked_files{$current_path.$filename}){
+                        $r->print('<td colspan="2"><a href="portfolio?lockinfo='.$current_path.$filename.'">Locked</a></td>');
+                    } else {
+                        $r->print('<td><input type="checkbox" name="selectfile" value="'.$filename.'" />
+                            <a href="/adm/portfolio?rename='.$filename.'&amp;currentpath='.$current_path.'">Rename</a></td>
+                            <td><a href="'.$href_edit_location.$filename.'.meta">Meta</a>
+                            </td>');
+                    }
                 }
-                $r->print('></td>');
                 $r->print('<td><img src="'.$iconpath.'unknown.gif"></td>');
                 $r->print('<td><a href="'.$href_location.$filename.'">'.
 			    $filename.'</a></td>'); 
@@ -197,14 +162,22 @@ sub display_file_select {
             }
         }
     }
-    $r->print('</table>
+    if ($select_mode eq 'true') {
+        $r->print('</table>
             <input type="hidden" name="continue" value="true">
-            <input type="hidden" name="fieldname" value="'.$ENV{'form.fieldname'}.'">
+            <input type="hidden" name="fieldname" value="'.$env{'form.fieldname'}.'">
             <input type="hidden" name="mode" value="selectfile">
             <input type="submit" name="submit" value="Select checked files, and continue selecting." /><br />
             <input type="button" name="doit" onClick= "finishSelect();" value="Select checked files, and close window" />
             <input type="hidden" name="currentpath" value="'.$current_path.'" />
-    </form>');
+        </form>');        
+    } else {
+        $r->print('</table>
+        <input type="submit" name="doit" value="Delete Checked Files" />
+        <input type="hidden" name="action" value="delete" />
+        <input type="hidden" name="currentpath" value="'.$current_path.'" />
+        </form>');
+    }
 }
 
 sub open_form {
@@ -212,14 +185,14 @@ sub open_form {
     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
     $r->print('<form method="post" action="/adm/portfolio">');
     $r->print('<input type="hidden" name="action" value="'.
-	      $ENV{'form.action'}.'" />');
+	      $env{'form.action'}.'" />');
     $r->print('<input type="hidden" name="confirmed" value="1" />');
     foreach (@files) {
         $r->print('<input type="hidden" name="selectfile" value="'.
 	      $_.'" />');
     }
     $r->print('<input type="hidden" name="currentpath" value="'.
-	      $ENV{'form.currentpath'}.'" />');
+	      $env{'form.currentpath'}.'" />');
 }
 
 sub close_form {
@@ -229,7 +202,7 @@ sub close_form {
     $r->print('<form action="/adm/portfolio" method="POST">
                <p>
               <input type="hidden" name="currentpath" value="'.
-	      $ENV{'form.currentpath'}.'" />
+	      $env{'form.currentpath'}.'" />
                  <input type="submit" value="'.&mt('Cancel').'" />
                </p></form>');
 
@@ -238,9 +211,9 @@ sub close_form {
 sub display_file {
     my ($path,$filename)=@_;
     my $display_file_text;
-    if (!defined($path)) { $path=$ENV{'form.currentpath'}; }
+    if (!defined($path)) { $path=$env{'form.currentpath'}; }
     if (!defined($filename)) { 
-        $filename=$ENV{'form.selectfile'};
+        $filename=$env{'form.selectfile'};
         $display_file_text = '<tt>'.$path.$filename.'</tt>';
     } elsif (ref($filename) eq "ARRAY") {
         foreach (@$filename) {
@@ -253,22 +226,26 @@ sub display_file {
 }
 
 sub done {
+    my ($message)=@_;
+    unless (defined $message) {
+        $message='Done';
+    }
     return ('<h3><a href="/adm/portfolio?currentpath='.
-	    $ENV{'form.currentpath'}.
-	    '&fieldname='.$ENV{'form.fieldname'}.
-	    '&mode='.$ENV{'form.mode'}.
-	    '">'.&mt('Done').'</a></h3>');
+	    $env{'form.currentpath'}.
+	    '&fieldname='.$env{'form.fieldname'}.
+	    '&mode='.$env{'form.mode'}.
+	    '">'.&mt($message).'</a></h3>');
 }
 
 sub delete {
     my ($r)=@_;
     my @check;
-    my $file_name = $ENV{'form.currentpath'}.$ENV{'form.selectfile'};
+    my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
 
-    if (&Apache::lonnet::is_locked($file_name,$ENV{'user.domain'},$ENV{'user.name'} ) eq 'true') {
+    if (&Apache::lonnet::is_locked($file_name,$env{'user.domain'},$env{'user.name'} ) eq 'true') {
         $r->print ("The file is locked and cannot be deleted.<br />");
-        $r->print(&done());
+        $r->print(&done('Back'));
     } else {
         if (scalar(@files)) {
             &open_form($r);
@@ -286,9 +263,9 @@ sub delete_confirmed {
     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
     my $result;
     foreach my $delete_file (@files) {
-        $result=&Apache::lonnet::removeuserfile($ENV{'user.name'},
-					       $ENV{'user.domain'},'portfolio'.
-					       $ENV{'form.currentpath'}.
+        $result=&Apache::lonnet::removeuserfile($env{'user.name'},
+					       $env{'user.domain'},'portfolio'.
+					       $env{'form.currentpath'}.
 					       $delete_file);
         if ($result ne 'ok') {
 	$r->print('<font color="red"> An error occured ('.$result.
@@ -307,11 +284,10 @@ sub delete_dir {
 
 sub delete_dir_confirmed {
     my ($r)=@_;
-    my $directory_name = $ENV{'form.currentpath'};
-    $directory_name =~ m/\/$/;
-    $directory_name = $`;
-    my $result=&Apache::lonnet::removeuserfile($ENV{'user.name'},
-					       $ENV{'user.domain'},'portfolio'.
+    my $directory_name = $env{'form.currentpath'};
+    $directory_name =~ s|/$||; # remove any trailing slash
+    my $result=&Apache::lonnet::removeuserfile($env{'user.name'},
+					       $env{'user.domain'},'portfolio'.
 					       $directory_name);
 					       
     if ($result ne 'ok') {
@@ -328,15 +304,15 @@ sub delete_dir_confirmed {
         for (my $i=1; $i < (@dirs - 1); $i ++){
             $directory_name .= $dirs[$i].'/';
         }
-        $ENV{'form.currentpath'} = $directory_name;
+        $env{'form.currentpath'} = $directory_name;
     }
     $r->print(&done());
 }
 
 sub rename {
     my ($r)=@_;
-    my $file_name = $ENV{'form.currentpath'}.$ENV{'form.rename'};
-    if (&Apache::lonnet::is_locked($file_name,$ENV{'user.domain'},$ENV{'user.name'}) eq 'true') {
+    my $file_name = $env{'form.currentpath'}.$env{'form.rename'};
+    if (&Apache::lonnet::is_locked($file_name,$env{'user.domain'},$env{'user.name'}) eq 'true') {
         $r->print ("The file is locked and cannot be renamed.<br />");
         $r->print(&done());
     } else {
@@ -349,7 +325,7 @@ sub rename {
 
 sub rename_confirmed {
     my ($r)=@_;
-    my $filenewname=&Apache::lonnet::clean_filename($ENV{'form.filenewname'});
+    my $filenewname=&Apache::lonnet::clean_filename($env{'form.filenewname'});
     if ($filenewname eq '') {
 	$r->print('<font color="red">'.
 		  &mt("Error: no valid filename was provided to rename to.").
@@ -358,33 +334,35 @@ sub rename_confirmed {
 	return;
     } 
     my $result=
-	&Apache::lonnet::renameuserfile($ENV{'user.name'},$ENV{'user.domain'},
-            'portfolio'.$ENV{'form.currentpath'}.$ENV{'form.selectfile'},
-            'portfolio'.$ENV{'form.currentpath'}.$filenewname);
+	&Apache::lonnet::renameuserfile($env{'user.name'},$env{'user.domain'},
+            'portfolio'.$env{'form.currentpath'}.$env{'form.selectfile'},
+            'portfolio'.$env{'form.currentpath'}.$filenewname);
     if ($result ne 'ok') {
 	$r->print('<font color="red"> An errror occured ('.$result.
 		  ') while trying to rename '.&display_file().' to '.
 		  &display_file(undef,$filenewname).'</font><br />');
     }
-    if ($filenewname ne $ENV{'form.filenewname'}) {
-        $r->print("The new file name was changed from:<br /><strong>".$ENV{'form.filenewname'}."</strong> to <strong>$filenewname </strong>");
+    if ($filenewname ne $env{'form.filenewname'}) {
+        $r->print("The new file name was changed from:<br /><strong>".$env{'form.filenewname'}."</strong> to <strong>$filenewname </strong>");
     }
     $r->print(&done());
 }
 sub select_files {
     my ($r)=@_;
-    if ($ENV{'form.continue'} eq 'true') {
+    if ($env{'form.continue'} eq 'true') {
         # here we update the selections for the currentpath
         # eventually, have to handle removing those not checked, but . . . 
-        my @items=&Apache::loncommon::get_env_multiple('form.selectfile');
-        &Apache::lonnet::save_selected_files($ENV{'user.name'}, $ENV{'form.currentpath'}, @items);
+        my @items=&Apache::loncommon::get_env_multiple('form.checkfile');
+        if (scalar(@items)){
+            &Apache::lonnet::logthis("one of the items is $items[0]");
+            &Apache::lonnet::save_selected_files($env{'user.name'}, $env{'form.currentpath'}, @items);
+        }
     } else {
-        if ($ENV{'form.currentpath'} eq '/') {
             #empty the file for a fresh start
-            # &Apache::lonnet::clear_selected_files($ENV{'user.name'});
-        }
+            &Apache::lonnet::logthis("Clearing saved files");
+            &Apache::lonnet::clear_selected_files($env{'user.name'});
     }
-    my @files = &Apache::lonnet::files_not_in_path($ENV{'user.name'}, $ENV{'form.currentpath'});
+    my @files = &Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
     my $java_files = join ",", @files;
     if ($java_files) {
         $java_files.=',';
@@ -402,7 +380,7 @@ ENDSMP
             }
             opener.document.forms.lonhomework.
 ENDSMP
-    $javascript .= $ENV{'form.fieldname'};
+    $javascript .= $env{'form.fieldname'};
     $javascript .= (<<ENDSMP);
         .value=fileList;
             self.close();
@@ -413,52 +391,70 @@ ENDSMP
     $r->print("<h1>Select portfolio files</h1>
                 Check as many as you wish in response to the essay problem.<br />");
     $r->print("<strong>Files selected from other directories:</strong><br />");
-    foreach (&Apache::lonnet::files_not_in_path($ENV{'user.name'}, $ENV{'form.currentpath'})) {
+    foreach (&Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'})) {
         $r->print($_."<br />");
     }
 }
 sub upload {
     my ($r)=@_;
-    my $fname=$ENV{'form.uploaddoc.filename'};
-    my $filesize = (length($ENV{'form.uploaddoc'})) / 1000; #express in k (1024?)
+    my $fname=$env{'form.uploaddoc.filename'};
+    my $filesize = (length($env{'form.uploaddoc'})) / 1000; #express in k (1024?)
     my $disk_quota = 20000; # expressed in k
     $fname=&Apache::lonnet::clean_filename($fname);
-    my $portfolio_root = &Apache::loncommon::propath($ENV{'user.domain'},
-						 $ENV{'user.name'}).
+    my $portfolio_root = &Apache::loncommon::propath($env{'user.domain'},
+						 $env{'user.name'}).
 						'/userfiles/portfolio';
     # Fixme --- Move the checking for existing file to LOND error return
-    my @dir_list=&Apache::lonnet::dirlist($ENV{'form.currentpath'},
-					  $ENV{'user.domain'},
-					  $ENV{'user.name'},$portfolio_root);
+    my @dir_list=&Apache::lonnet::dirlist($env{'form.currentpath'},
+					  $env{'user.domain'},
+					  $env{'user.name'},$portfolio_root);
     my $found_file = 0;
+    my $locked_file = 0;
     foreach my $line (@dir_list) {
-        my ($filename)=split(/\&/,$line,2);
-        if ($filename eq $fname){
+        my ($file_name)=split(/\&/,$line,2);
+        if ($file_name eq $fname){
             $found_file = 1;
+            if (&Apache::lonnet::is_locked($env{'form.currentpath'}.$file_name,$env{'user.domain'},$env{'user.name'} ) eq 'true') {
+                $locked_file = 1;
+            } 
         }
     }
-    my $current_disk_usage = &Apache::lonnet::diskusage($ENV{'user.domain'}, $ENV{'user.name'},$portfolio_root);
+    my $current_disk_usage = &Apache::lonnet::diskusage($env{'user.domain'}, $env{'user.name'},$portfolio_root);
     if ((($current_disk_usage/1000) + $filesize) > $disk_quota){
         $r->print('<font color="red">Unable to upload <strong>'.$fname.' (size = '.$filesize.' kilobytes</strong>. Disk quota will be exceeded.'.
                   '<br />Disk quota is '.$disk_quota.' kilobytes. Your current disk usage is '.$current_disk_usage.' kilobytes.');
+        $r->print(&done('Back'));
     } 
-    elsif ($found_file){   
-        $r->print('<font color="red">Unable to upload <strong>'.$fname.'</strong>, a file by that name was found in <strong>'.$ENV{'form.currentpath'}.'</strong></font>'.
-                  '<br />To upload, rename or delete existing '.$fname.' in '.$ENV{'form.currentpath'});
+    elsif ($found_file){
+        if ($locked_file){
+            $r->print('<font color="red">Unable to upload <strong>'.$fname.'</strong>, a <strong>locked</strong> file by that name was found in <strong>portfolio'.$env{'form.currentpath'}.'</strong></font>'.
+                  '<br />You will be able to rename or delete existing '.$fname.' after a grade has been assigned.');
+            $r->print(&done('Back'));      
+        } else {   
+            $r->print('<font color="red">Unable to upload <strong>'.$fname.'</strong>, a file by that name was found in <strong>portfolio'.$env{'form.currentpath'}.'</strong></font>'.
+                  '<br />To upload, rename or delete existing '.$fname.' in portfolio'.$env{'form.currentpath'});
+            $r->print(&done('Back'));
+        }
     } else {
         my $result=&Apache::lonnet::userfileupload('uploaddoc','',
-	        	 'portfolio'.$ENV{'form.currentpath'});
+	        	 'portfolio'.$env{'form.currentpath'});
         if ($result !~ m|^/uploaded/|) {
             $r->print('<font color="red"> An errror occured ('.$result.
 	              ') while trying to upload '.&display_file().'</font><br />');
+	    $r->print(&done('Back'));
+        } else {
+            $r->print(&done());
         }
     }
-    $r->print(&done());
 }
-
+sub lock_info {
+    my ($r) = @_;
+    $r->print("lock info here");
+    return 'ok';
+}
 sub createdir {
     my ($r)=@_;
-    my $newdir=&Apache::lonnet::clean_filename($ENV{'form.newdir'});
+    my $newdir=&Apache::lonnet::clean_filename($env{'form.newdir'});
     if ($newdir eq '') {
     	$r->print('<font color="red">'.
 	    	  &mt("Error: no directory name was provided.").
@@ -466,12 +462,12 @@ sub createdir {
 	    $r->print(&done());
 	    return;
     } 
-    my $portfolio_root = &Apache::loncommon::propath($ENV{'user.domain'},
-						 $ENV{'user.name'}).
+    my $portfolio_root = &Apache::loncommon::propath($env{'user.domain'},
+						 $env{'user.name'}).
 						'/userfiles/portfolio';
-    my @dir_list=&Apache::lonnet::dirlist($ENV{'form.currentpath'},
-					  $ENV{'user.domain'},
-					  $ENV{'user.name'},$portfolio_root);
+    my @dir_list=&Apache::lonnet::dirlist($env{'form.currentpath'},
+					  $env{'user.domain'},
+					  $env{'user.name'},$portfolio_root);
     my $found_file = 0;
     foreach my $line (@dir_list) {
         my ($filename)=split(/\&/,$line,2);
@@ -483,15 +479,15 @@ sub createdir {
     	    $r->print('<font color="red"> Unable to create a directory named <strong>'.$newdir.
     	            ' </strong>a file or directory by that name already exists.</font><br />');
     } else {
-        my $result=&Apache::lonnet::mkdiruserfile($ENV{'user.name'},
-	         $ENV{'user.domain'},'portfolio'.$ENV{'form.currentpath'}.$newdir);
+        my $result=&Apache::lonnet::mkdiruserfile($env{'user.name'},
+	         $env{'user.domain'},'portfolio'.$env{'form.currentpath'}.$newdir);
         if ($result ne 'ok') {
     	    $r->print('<font color="red"> An errror occured ('.$result.
 	    	      ') while trying to create a new directory '.&display_file().'</font><br />');
         }
     }
-    if ($newdir ne $ENV{'form.newdir'}) {
-        $r->print("The new directory name was changed from:<br /><strong>".$ENV{'form.newdir'}."</strong> to <strong>$newdir </strong>");  
+    if ($newdir ne $env{'form.newdir'}) {
+        $r->print("The new directory name was changed from:<br /><strong>".$env{'form.newdir'}."</strong> to <strong>$newdir </strong>");  
     }
     $r->print(&done());
 }
@@ -499,12 +495,12 @@ sub createdir {
 sub handler {
     # this handles file management
     my $r = shift;
-    my $portfolio_root = &Apache::loncommon::propath($ENV{'user.domain'},
-							 $ENV{'user.name'}).
+    my $portfolio_root = &Apache::loncommon::propath($env{'user.domain'},
+							 $env{'user.name'}).
 							'/userfiles/portfolio';
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-                                            ['selectfile','currentpath','meta',
-					     'currentfile','action','fieldname','mode','rename']);
+                                            ['selectfile','currentpath','meta','lockinfo',
+					     'currentfile','action','fieldname','mode','rename','continue']);
     &Apache::loncommon::no_cache($r);
     &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;
@@ -513,59 +509,61 @@ sub handler {
     $r->print($html.'<head><title>'.
               &mt('Portfolio Manager').
               "</title></head>\n");
-    if ($ENV{"form.mode"} eq 'selectfile'){
+    if ($env{"form.mode"} eq 'selectfile'){
         $r->print(&Apache::loncommon::bodytag('Portfolio Manager',undef,undef,1));
     } else {
         $r->print(&Apache::loncommon::bodytag('Portfolio Manager'));
     }
     $r->rflush();
-	if (($ENV{'form.storeupl'} eq 'Upload') & (!$ENV{'form.uploaddoc.filename'})){
+	if (($env{'form.storeupl'} eq 'Upload') & (!$env{'form.uploaddoc.filename'})){
    	    $r->print('<font color="red"> No file was selected to upload.'.
    	            'To upload a file, click <strong>Browse...</strong>'.
    	            ', select a file, then click <strong>Upload</strong>,</font>');
 	}
-    if ($ENV{'form.meta'}) {
+    if ($env{'form.meta'}) {
         &open_form($r);
-#        $r->print(&edit_meta_data($r, $ENV{'form.currentpath'}.$ENV{'form.selectfile'}));
+#        $r->print(&edit_meta_data($r, $env{'form.currentpath'}.$env{'form.selectfile'}));
         $r->print('Edit the meta data<br />');
         &close_form($r);
     }
-    if ($ENV{'form.store'}) {
+    if ($env{'form.store'}) {
     }
 
-    if ($ENV{'form.uploaddoc.filename'}) {
+    if ($env{'form.uploaddoc.filename'}) {
 	&upload($r);
-    } elsif ($ENV{'form.action'} eq 'delete' && $ENV{'form.confirmed'}) {
+    } elsif ($env{'form.action'} eq 'delete' && $env{'form.confirmed'}) {
 	&delete_confirmed($r);
-    } elsif ($ENV{'form.action'} eq 'delete') {
+    } elsif ($env{'form.action'} eq 'delete') {
 	&delete($r);
-    } elsif ($ENV{'form.action'} eq 'deletedir' && $ENV{'form.confirmed'}) {
+    } elsif ($env{'form.action'} eq 'deletedir' && $env{'form.confirmed'}) {
 	&delete_dir_confirmed($r);
-    } elsif ($ENV{'form.action'} eq 'deletedir'){
+    } elsif ($env{'form.action'} eq 'deletedir'){
 	&delete_dir($r);
-    } elsif ($ENV{'form.action'} eq 'rename' && $ENV{'form.confirmed'}) {
+    } elsif ($env{'form.action'} eq 'rename' && $env{'form.confirmed'}) {
 	&rename_confirmed($r);
-    } elsif ($ENV{'form.rename'}) {
-        $ENV{'form.selectfile'} = $ENV{'form.rename'};
-        $ENV{'form.action'} = 'rename';
+    } elsif ($env{'form.rename'}) {
+        $env{'form.selectfile'} = $env{'form.rename'};
+        $env{'form.action'} = 'rename';
 	&rename($r);
-    } elsif ($ENV{'form.createdir'}) {
+    } elsif ($env{'form.createdir'}) {
 	&createdir($r);
+    } elsif ($env{'form.lockinfo'}) {
+        &lock_info($r);
     } else {
 	my $current_path='/';
-	if ($ENV{'form.currentpath'}) {
-	    $current_path = $ENV{'form.currentpath'};
+	if ($env{'form.currentpath'}) {
+	    $current_path = $env{'form.currentpath'};
 	}
 	my @dir_list=&Apache::lonnet::dirlist($current_path,
-					    $ENV{'user.domain'},
-					    $ENV{'user.name'},$portfolio_root);
+					    $env{'user.domain'},
+					    $env{'user.name'},$portfolio_root);
 	if ($dir_list[0] eq 'no_such_dir'){
 	    # two main reasons for this:
             #    1) never been here, so directory structure not created
 	    #    2) back-button navigation after deleting a directory
 	    if ($current_path eq '/'){
-	        &Apache::lonnet::mkdiruserfile($ENV{'user.name'},
-					       $ENV{'user.domain'},'portfolio');
+	        &Apache::lonnet::mkdiruserfile($env{'user.name'},
+					       $env{'user.domain'},'portfolio');
 	    } else {
                 # some directory that snuck in get rid of the directory
                 # from the recent pulldown, just in case
@@ -575,18 +573,13 @@ sub handler {
 	    }
 	    # now grab the directory list again, for the first time
 	    @dir_list=&Apache::lonnet::dirlist($current_path,
-					    $ENV{'user.domain'},
-					    $ENV{'user.name'},$portfolio_root);
+					    $env{'user.domain'},
+					    $env{'user.name'},$portfolio_root);
         }
 	# need to know if directory is empty so it can be removed if desired
 	my $is_empty=(@dir_list == 2);
 	&display_common($r,$current_path,$is_empty,\@dir_list);
-	if ($ENV{"form.mode"} eq 'selectfile'){
-	    &select_files($r);
-            &display_file_select($r,$current_path,$is_empty,\@dir_list);
-	} else {
-	    &display_directory($r,$current_path,$is_empty,\@dir_list);
-	}
+        &display_directory($r,$current_path,$is_empty,\@dir_list);
 	$r->print("</body>\n</html>\n");
 	return OK;
     }