--- loncom/interface/spreadsheet/lonspreadsheet.pm	2009/04/22 17:19:14	1.53
+++ loncom/interface/spreadsheet/lonspreadsheet.pm	2011/10/09 00:28:03	1.55.6.1
@@ -1,5 +1,5 @@
 #
-# $Id: lonspreadsheet.pm,v 1.53 2009/04/22 17:19:14 bisitz Exp $
+# $Id: lonspreadsheet.pm,v 1.55.6.1 2011/10/09 00:28:03 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -86,7 +86,7 @@ sub selectbox {
     my $selout="\n<p><b>$title:</b><br />".'<select name="'.$name.'">';
     foreach (sort keys(%options)) {
         $selout.='<option value="'.$_.'"';
-        if ($_ eq $value) { $selout.=' selected'; }
+        if ($_ eq $value) { $selout.=' selected="selected"'; }
         $selout.='>'.&mt($options{$_}).'</option>';
     }
     return $selout.'</select>';
@@ -106,10 +106,13 @@ sub file_dialogs {
         $spreadsheet->filename($env{'form.savefilename'});
         my $save_status = $spreadsheet->save();
         if ($save_status ne 'ok') {
-            $message .= "An error occurred while saving the spreadsheet".
-                "There error is:".$save_status;
+            $message .= '<span class="LC_error">'.
+                &mt('An error occurred while saving the spreadsheet. The error is: [_1].',
+                    $save_status).'</span>';
         } else {
-            $message .= "Spreadsheet saved as ".$spreadsheet->filename();
+            $message .= '<span class="LC_info">'.&mt('Spreadsheet saved as: [_1] .',
+                        '<span class="LC_filename">'.$spreadsheet->filename().'</span>').
+                        '</span>';
         }
     } elsif (exists($env{'form.newformula'}) && 
              exists($env{'form.cell'})       && 
@@ -146,7 +149,7 @@ sub file_dialogs {
         $truefilename.'" />'.
         '</span>';
     my $makedefault_dialog = '<input type="submit" name="makedefault" '.
-        'value="'.&mt('Save as & Make This Sheet the Default').'"/>';
+        'value="'.&mt('Save as &amp; Make This Sheet the Default').'"/>';
     #
     my $link = '<a href="javascript:openbrowser'.
         "('sheet','loadfilename','spreadsheet')\">".&mt('Select Spreadsheet File')."</a>";
@@ -165,17 +168,18 @@ END
     foreach my $sheetfilename ($spreadsheet->othersheets()) {
         $load_dialog .= '    <option value="'.$sheetfilename.'"';
         if ($filename eq $sheetfilename) {
-            $load_dialog .= ' selected';
+            $load_dialog .= ' selected="selected"';
             $default_filename_set = 1;
         }
         $load_dialog .= '>'.$sheetfilename."</option>\n";
     }
     $load_dialog .= "</select>\n</td><td>&nbsp;</td></tr>\n</table>\n";
         #
+    my $headline = &mt('File Dialogs');
     $result .=<<END;
 <!-- 
     <fieldset title="File Dialogs" >
-    <legend>File Dialogs</legend>
+    <legend>$headline</legend>
   -->
 <!-- load / save dialogs -->
 <table cellspacing="2">
@@ -226,15 +230,39 @@ sub handler {
             $r->uri.":opa:0:0:Cannot modify spreadsheet";
         return HTTP_NOT_ACCEPTABLE; 
     }
+    my ($sheettype) = ($r->uri=~/\/(\w+)$/);
     my $courseid = $env{'request.course.id'};
+
+    ##
+    ## Check permissions
+    my $allowed_to_edit = &Apache::lonnet::allowed('mgr',
+                                                $env{'request.course.id'});
+    # Only those instructors/tas/whatevers with complete access
+    # (not section restricted) are able to modify spreadsheets.
+    my $allowed_to_view =  &Apache::lonnet::allowed('vgr',
+                                                $env{'request.course.id'});
+    if (! $allowed_to_view) {
+        $allowed_to_view = &Apache::lonnet::allowed('vgr',
+                    $env{'request.course.id'}.'/'.$env{'request.course.sec'});
+        # Those who are restricted by section are allowed to view.
+        # The routines in lonstatistics which decide which students'
+        # will be shown take care of the restriction by section.
+    }
+
     #
-    # Do not allow students to continue if standard or external grading is in
-    # effect.
+    # Do not allow users without vgr or mgr priv to continue unless 
+    # grading type is set to spreadsheet.
     #
-    if ($env{'request.role'} =~ /^st\./) {
-        if ($env{'course.'.$courseid.'.grading'} eq 'standard' ||
-	    $env{'course.'.$courseid.'.grading'} eq 'external' ) {
-            return HTTP_NOT_ACCEPTABLE;
+
+    if ((!$allowed_to_view) && (!$allowed_to_edit)) {
+        if ($env{'course.'.$courseid.'.grading'} eq 'spreadsheet') {
+            if ($sheettype ne 'studentcalc') {
+                $r->internal_redirect('/adm/studentcalc');
+                return OK;
+            }
+        } else {
+            $r->internal_redirect('/adm/quickgrades');
+            return OK;
         }
     }
     #
@@ -252,15 +280,26 @@ sub handler {
     }
     #
     # Determine basic information about the spreadsheet
-    my ($sheettype) = ($r->uri=~/\/(\w+)$/);
     #
     my $symb   = undef;
     $symb = $env{'form.usymb'} if (exists($env{'form.usymb'}));
     my $name   = $env{'user.name'};
     my $domain = $env{'user.domain'};
+    my $warning;
     if (exists($env{'form.sname'}) && $env{'form.sname'} ne '') {
-        $name   = $env{'form.sname'};
-        $domain = $env{'form.sdomain'};
+        if (($env{'form.sname'} ne $env{'user.name'}) ||
+            ($env{'form.sdomain'} ne $env{'user.domain'})) {
+            if (($allowed_to_view) || ($allowed_to_edit)) {
+                if (&Apache::lonnet::homeserver($env{'form.sname'},$env{'form.sdomain'}) ne 'no_host') {
+                    $name   = $env{'form.sname'};
+                    $domain = $env{'form.sdomain'};
+                } else {
+                    $warning = &mt('Requested user: "[_1]" does not exist; your own sheet is displayed instead.',$env{'form.sname'}.':'.$env{'form.sdomain'});
+                }
+            } else {
+                $warning = &mt('Your current role is not permitted to display this sheet for the requested user: "[_1]"; your own sheet is displayed instead.',$env{'form.sname'}.':'.$env{'form.sdomain'});
+            }
+        }
     }
     $env{'form.sname'} = $name;
     $env{'form.sdomain'} = $domain;
@@ -275,29 +314,13 @@ sub handler {
                                                     $env{'request.course.id'});
     }
 
-    ##
-    ## Check permissions
-    my $allowed_to_edit = &Apache::lonnet::allowed('mgr',
-                                                $env{'request.course.id'});
-    # Only those instructors/tas/whatevers with complete access
-    # (not section restricted) are able to modify spreadsheets.
-    my $allowed_to_view =  &Apache::lonnet::allowed('vgr',
-                                                $env{'request.course.id'});
-    if (! $allowed_to_view) {
-        $allowed_to_view = &Apache::lonnet::allowed('vgr',
-                    $env{'request.course.id'}.'/'.$env{'request.course.sec'});
-        # Those who are restricted by section are allowed to view.
-        # The routines in lonstatistics which decide which students' 
-        # will be shown take care of the restriction by section.
-    }
     #
     # Only those able to view others grades will be allowed to continue 
     # if they are not requesting their own.
     if ($sheettype eq 'classcalc') {
-        if (! $allowed_to_view) {
-	    $env{'user.error.msg'}=
-		$r->uri.":vgr:0:0:Access Permission Denied";
-	    return HTTP_NOT_ACCEPTABLE; 
+        if (!$allowed_to_view) {
+            $r->internal_redirect('/adm/studentcalc');
+            return OK;
 	}
     }
     if ((($name   ne $env{'user.name'} ) ||
@@ -402,10 +425,19 @@ ENDSCRIPT
           text  => 'Spreadsheet',
           faq   => 134,
           bug   => 'Spreadsheet'});
+    my $settingslink = &Apache::lonhtmlcommon::coursepreflink(&mt('Grade display settings'),
+                                                              'grading');
+    &Apache::lonhtmlcommon::add_breadcrumb_tool('advtools',$settingslink);
     $r->print(&Apache::loncommon::start_page('Grades Spreadsheet',$js).
               &Apache::lonhtmlcommon::breadcrumbs('Spreadsheet',
-						  'Spreadsheet_About').
-              '<form action="'.$r->uri.'" name="sheet" method="post">');
+						  'Spreadsheet_About'));
+    #
+    # Open the form
+    #
+    if ($warning) {
+        $r->print('<p class="LC_info">'.$warning.'</p>');
+    }
+    $r->print('<form action="'.$r->uri.'" name="sheet" method="post">');
     $r->print(&hiddenfield('sname'  ,$env{'form.sname'}).
               &hiddenfield('sdomain',$env{'form.sdomain'}).
               &hiddenfield('usymb'  ,$env{'form.usymb'}));