--- loncom/homework/inputtags.pm	2001/11/12 20:27:28	1.46
+++ loncom/homework/inputtags.pm	2002/04/01 21:26:57	1.56
@@ -1,12 +1,38 @@
 # The LearningOnline Network with CAPA
 # input  definitons
+#
+# $Id: inputtags.pm,v 1.56 2002/04/01 21:26:57 albertel Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
 # 2/19 Guy 
 
 package Apache::inputtags;
+use HTML::Entities();
 use strict;
 
-sub BEGIN {
-  &Apache::lonxml::register('Apache::inputtags',('textarea','textline','datasubmission'));
+BEGIN {
+  &Apache::lonxml::register('Apache::inputtags',('textfield','textline','datasubmission'));
 }
 
 
@@ -46,31 +72,40 @@ sub end_input {
   return '';
 }
 
-sub start_textarea {
+sub start_textfield {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $result = "";
   my $id = &start_input($parstack,$safeeval);
+  my $resid=$Apache::inputtags::response[-1];
   if ($target eq 'web') {
-    my $oldresponse = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"};
+    my $partid=$Apache::inputtags::part;
+    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
     my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
     if ( $cols eq '') { $cols = 80; }
     my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
     if ( $rows eq '') { $rows = 10; }
     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
-      $result= '<textarea name="HWVAL'.$Apache::inputtags::response['-1'].'" '.
+      $result= '<textarea name="HWVAL'.$resid.'" '.
 	"rows=\"$rows\" cols=\"$cols\">".$oldresponse;
     } else {
       $result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
     }
     if ($oldresponse ne '') {
       #get rid of any startup text if the user has already responded
-      &Apache::lonxml::get_all_text("/textarea",$$parser[$#$parser]);
+      &Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
+    }
+  }
+  if ($target eq 'grade') {
+    my $seedtext=&Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
+    if ($seedtext eq $ENV{'form.HWVAL'.$resid}) {
+      # if the seed text is still there it wasn't a real submission
+      $ENV{'form.HWVAL'.$resid}='';
     }
   }
   return $result;
 }
 
-sub end_textarea {
+sub end_textfield {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   if ($target eq 'web') {
     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
@@ -88,9 +123,8 @@ sub start_textline {
     my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
     if ($size eq '') { $size=20; }
     my $partid=$Apache::inputtags::part;
-    my $id=$Apache::inputtags::response['-1'];
-    my $oldresponse = 
-      $Apache::lonhomework::history{"resource.$partid.$id.submission"};
+    my $id=$Apache::inputtags::response[-1];
+    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
       $result= '<input type="text" name="HWVAL'.$id.'" value="'.
 	$oldresponse.'" size="'.$size.'" />';
@@ -98,8 +132,7 @@ sub start_textline {
       $result='<i>'.$oldresponse.'</i>';
     }
   } elsif ($target eq 'edit') {
-    $result=&Apache::edit::tag_start($target,$token,
-				     &Apache::lonxml::description($token));
+    $result=&Apache::edit::tag_start($target,$token);
     $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
     $result.=&Apache::edit::end_table;
   } elsif ($target eq 'modified') {
@@ -154,7 +187,17 @@ sub finalizeawards {
   my $award;
   if ($#_ == '-1') { $result = "NO_RESPONSE"; }
   if ($result eq '' ) {
-    foreach $award (@_) { if ($award eq '') {$result='MISSING_ANSWER'; last;}}
+    my $blankcount;
+    foreach $award (@_) {
+      if ($award eq '') {
+	$result='MISSING_ANSWER';
+	$blankcount++;
+      }
+    }
+    if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
   }
   if ($result eq '' ) {
     foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
@@ -261,9 +304,15 @@ sub decideoutput {
 sub setgradedata {
   my ($award,$id,$previously_used) = @_;
   # if the student already has it correct, don't modify the status
-  if ( $Apache::lonhomework::history{"resource.$id.solved"} !~
+  if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER') {
+    $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
+    return '';
+  } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
        /^correct/ ) {
     #handle assignment of tries and solved status
+    if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
+      $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
+    }
     if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
       $Apache::lonhomework::results{"resource.$id.tries"} =
 	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
@@ -318,12 +367,8 @@ sub grade {
     foreach $response (@Apache::inputtags::responselist) {
       &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
       my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
-      if ( $value ne '' ) {
-	&Apache::lonxml::debug("keeping $value from $response for $id");
-	push (@awards,$value);
-      } else {
-	&Apache::lonxml::debug("skipping $value from $response for $id");
-      }
+      &Apache::lonxml::debug("keeping $value from $response for $id");
+      push (@awards,$value);
     }
     my $finalaward = &finalizeawards(@awards);
     my $previously_used;
@@ -346,6 +391,7 @@ sub gradestatus {
   my ($id) = @_;
   my $showbutton = 1;
   my $message = '';
+  my $latemessage = '';
   my $trystr='';
   my $button='';
   my $previousmsg='';
@@ -377,14 +423,18 @@ sub gradestatus {
     }
     if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
     if ( $showbutton ) { 
-      $button = '<br /><input type="submit" name="submit" value="Submit All Answers" />';
+      $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
+    }
+    if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
+      #last submissions was after due date
+      $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
     }
   }
-  my $output= $previousmsg.$message.$trystr;
+  my $output= $previousmsg.$latemessage.$message.$trystr;
   if ($output =~ /^\s*$/) {
     return $button;
   } else {
-    return $button.'<table><tr>'.$previousmsg.$message.$trystr.'</tr></table>';
+    return $button.'<table><tr>'.$output.'</tr></table>';
   }
 }
 1;