--- loncom/homework/imageresponse.pm	2003/05/06 11:54:08	1.27
+++ loncom/homework/imageresponse.pm	2003/06/09 22:31:56	1.30
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # image click response style
 #
-# $Id: imageresponse.pm,v 1.27 2003/05/06 11:54:08 www Exp $
+# $Id: imageresponse.pm,v 1.30 2003/06/09 22:31:56 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -51,10 +51,13 @@ sub start_imageresponse {
 }
 
 sub end_imageresponse {
-  &Apache::response::end_response;
-  pop @Apache::lonxml::namespace;
-  &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    &Apache::response::end_response;
+    pop @Apache::lonxml::namespace;
+    &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
+    my $result;
+    if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
+    return $result;
 }
 
 %Apache::response::foilgroup=();
@@ -103,8 +106,10 @@ sub displayfoils {
   my $temp=1;
   foreach $name (@whichopt) {
     $result.=$Apache::response::foilgroup{"$name.text"};
+    &Apache::lonxml::debug("Text is $result");
     if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
     my $image=$Apache::response::foilgroup{"$name.image"};
+    &Apache::lonxml::debug("image is $image");
     if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
       if ($target eq 'tex') {
 	$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
@@ -134,7 +139,8 @@ sub gradefoils {
     $x=$ENV{"form.HWVAL_$id:$temp.x"};
     $y=$ENV{"form.HWVAL_$id:$temp.y"};
     &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
-    if (defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
+    if (defined($x) && defined($y) &&
+	defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
       my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
       my $grade="INCORRECT";
       foreach my $area (@areas) {
@@ -170,12 +176,11 @@ sub end_foilgroup {
     if ($count>$max) { $count=$max }
     &Apache::lonxml::debug("Count is $count from $max");
     @whichopt = &whichfoils($max);
-  } elsif ($target eq 'web' || $target eq 'tex') {
-    $result=&displayfoils($target,@whichopt);
-  } elsif ($target eq 'grade') {
-    if ( defined $ENV{'form.submitted'}) {
-      &gradefoils(@whichopt);
-    }
+    if ($target eq 'web' || $target eq 'tex') {
+	$result=&displayfoils($target,@whichopt);
+    } elsif ($target eq 'grade') {
+	if ( defined $ENV{'form.submitted'}) { &gradefoils(@whichopt); }
+    } 
   } elsif ($target eq 'edit') {
       $result=&Apache::edit::end_table();
   }