--- loncom/homework/rankresponse.pm	2008/02/01 22:05:45	1.56
+++ loncom/homework/rankresponse.pm	2011/06/07 17:27:37	1.65
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # rank style response
 #
-# $Id: rankresponse.pm,v 1.56 2008/02/01 22:05:45 raeburn Exp $
+# $Id: rankresponse.pm,v 1.65 2011/06/07 17:27:37 www Exp $
 # Copyright Michigan State University Board of Trustees
 #
 # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
@@ -30,6 +30,8 @@ use strict;
 use HTML::Entities();
 use Apache::optionresponse();
 use Apache::lonlocal;
+use Apache::lonxml;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonxml::register('Apache::rankresponse',('rankresponse'));
@@ -48,15 +50,17 @@ sub start_rankresponse {
     if ($target eq 'meta') {
 	$result=&Apache::response::meta_package_write('rankresponse');
     } elsif ($target eq 'edit' ) {
-	$result.=&Apache::edit::start_table($token).
-	    '<tr><td>'.&Apache::lonxml::description($token)."</td><td>Delete:".
-	    &Apache::edit::deletelist($target,$token)
-	    ."</td><td>&nbsp".&Apache::edit::end_row()
-	    .&Apache::edit::start_spanning_row();
+	$result.=&Apache::edit::start_table($token)
+           .'<tr><td>'.&Apache::lonxml::description($token).'</td>'
+           .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
+           .&Apache::edit::deletelist($target,$token)
+           .'</span></td>'
+           .'<td>&nbsp;'.&Apache::edit::end_row()
+           .&Apache::edit::start_spanning_row();
 	
 	$result.=
 	    &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
-	    &Apache::edit::select_arg('Randomize Foil Order','randomize',
+	    &Apache::edit::select_arg('Randomize Foil Order:','randomize',
 				      ['yes','no'],$token).
 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
     } elsif ($target eq 'modified') {
@@ -92,7 +96,7 @@ sub start_foilgroup {
     my $result;
     %Apache::response::foilgroup=();
     $Apache::rankresponse::conceptgroup=0;
-    &Apache::response::pushrandomnumber();
+    &Apache::response::pushrandomnumber(undef,$target);
     return $result;
 }
 
@@ -261,12 +265,26 @@ sub grade_response {
 	    $ad='MISSING_ANSWER';
 	}
     }
-    if ($Apache::lonhomework::type eq 'survey' &&
-	($ad eq 'INCORRECT' || $ad eq 'EXACT_ANS') ) {
-	$ad='SUBMITTED';
+    if (($ad eq 'INCORRECT' || $ad eq 'EXACT_ANS')) {
+        if ($Apache::lonhomework::type eq 'survey') {
+            $ad='SUBMITTED';
+        } elsif ($Apache::lonhomework::type eq 'surveycred') {
+	    $ad='SUBMITTED_CREDIT';
+        } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
+            $ad='ANONYMOUS';
+        } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
+            $ad='ANONYMOUS_CREDIT';
+        } else {
+            $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
+        }
     } else {
 	$Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
     }
+    if ($Apache::lonhomework::type eq 'randomizetry') {
+        if ($Apache::lonhomework::type eq 'randomizetry') {
+            $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichfoils);
+        }
+    }
     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
 	$responsestr;
     $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
@@ -313,28 +331,58 @@ sub displayfoils {
 	my $temp=1;
 	my $id=$Apache::inputtags::response[-1];
 	my $part=$Apache::inputtags::part;
-	my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
+        my ($lastresponse,$newvariation);
+        if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
+             ($Apache::lonhomework::type eq 'randomizetry')) &&
+        ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
+            if ($env{'form.'.$part.'.rndseed'} ne
+                $Apache::lonhomework::history{"resource.$part.rndseed"}) {
+                $newvariation = 1;
+            }
+        }
+        unless (((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'}))) || $newvariation) {
+            $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
+        }
 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse); 
 	my @alp = splice @alphabet, 0, $#whichopt + 1;
 	my $internal_counter=$Apache::lonxml::counter;
-	foreach my $name (@whichfoils) {
+        if($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
+            $result .= '\strut \\\\ \strut \\\\' ;
+        }
+        foreach my $name (@whichfoils) {
 	    my $lastopt=$lastresponse{$name};
 	    my $optionlist='';
-	    if ($target ne 'tex') {$optionlist="<option></option>\n";}
+	    if ($target ne 'tex') {
+                $optionlist = "<option></option>\n";
+            } 
+            if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
+                my $fieldname = $env{'request.symb'}.'&part_'.$Apache::inputtags::part.'&rankresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'].':'.$temp;
+                $optionlist =  &Apache::lonxml::print_pdf_start_combobox($fieldname);
+            }
 	    my $option;
 	    foreach $option (@whichopt) {
 		if ($option eq $lastopt) {
-		    if ($target ne 'tex') {$optionlist.="<option selected=\"on\">$option</option>\n";}
+		    if ($target ne 'tex' ) {
+                        $optionlist.="<option selected=\"selected\">$option</option>\n";
+                    } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
+                        $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option); 
+                    }
 		} else {
-		    if ($target ne 'tex') {$optionlist.="<option>$option</option>\n";}
-		}
+		    if ($target ne 'tex') {
+                        $optionlist.="<option>$option</option>\n";
+                    } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
+                        $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option); 
+                    }
+		} 
 	    }
 	    if ($target ne 'tex' && $Apache::lonhomework::type ne 'exam') {
 		$optionlist='<select onchange="javascript:setSubmittedPart(\''.
 		  $part.'\');" name="HWVAL_'.
 		    $Apache::inputtags::response[-1].':'.$temp.'">'.
 		        $optionlist."</select>\n";
-	    } else {
+	    } elsif ($env{'form.pdfFormFields'} eq 'yes') {
+                #do nothing
+            } else {
 		$optionlist=' '.$temp.' '.$optionlist.' ';
 	    }
 	    my $text=$Apache::response::foilgroup{$name.'.text'};
@@ -350,20 +398,32 @@ sub displayfoils {
 		}
 	    } else {
 		if ($Apache::lonhomework::type eq 'exam') {
-		    $result.='\vskip 0 mm   '.$text.' \vskip 0 mm '."\n";
-		    $result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]'.&Apache::optionresponse::bubbles(\@alp,\@whichopt,'rankresponse').'\end{enumerate} \vskip -8 mm \strut ';
+		    $result .= '\vskip 0 mm '.$text.' \vskip 0 mm '."\n";
+		    $result .= '\vskip -1 mm';
+		    $result .= '\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]';
+		    $result .= &Apache::optionresponse::bubbles(\@alp,\@whichopt,'rankresponse');
+		    $result .= '\end{enumerate} \vskip -8 mm \strut ';
 		    $internal_counter++;
 		} else {
-		    $result.=' \vskip 0mm \framebox[5 mm][s]{\tiny\strut} '.$text."\n";
+                    if($env{'form.pdfFormFields'} ne 'yes') {
+		        $result.=' \vskip 0mm \framebox[5 mm][s]{\tiny\strut} '.$text."\n";
+                    } else {
+                        $result.= $optionlist.' '. &Apache::lonxml::print_pdf_end_combobox($text).'\strut \\\\';
+                    }
 		}
 	    }
 	    $temp++;
 	}
     }
     if ($target eq 'web') {
+        my $questiontype;
+        if ($Apache::lonhomework::type eq 'randomizetry') {
+            $questiontype = $Apache::lonhomework::type;
+        }
 	&Apache::response::setup_prior_tries_hash(\&format_prior_answer,
 						  [\@whichfoils,
-						   'submissiongrading']);
+						   'submissiongrading'],
+                                                  $questiontype);
     }
     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \vskip 0 mm ';}
     return $result;
@@ -474,12 +534,15 @@ sub end_foil {
 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
 	    &Apache::lonxml::debug("Got a name of :$name:");
 	    if ($name eq "") {
-		&Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
+		&Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
 		$name=$Apache::lonxml::curdepth;
 	    }
 	    &Apache::lonxml::debug("Using a name of :$name:");
+            if ($name eq "0") {
+                &Apache::lonxml::error(&mt('Foil name [_1] is not supported. Please choose another name.','<b><tt>'.$name.'</tt></b>'));
+            }
 	    if (defined($Apache::response::foilnames{$name})) {
-		&Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
+		&Apache::lonxml::error(&mt('Foil name [_1] appears more than once. Foil names need to be unique.','<b><tt>'.$name.'</tt></b>'));
 	    }
 	    $Apache::response::foilnames{$name}++;
 	    my $location =&Apache::lonxml::get_param('location',$parstack,