--- loncom/homework/inputtags.pm	2000/07/25 21:27:30	1.1
+++ loncom/homework/inputtags.pm	2001/11/12 20:27:28	1.46
@@ -1,38 +1,392 @@
 # The LearningOnline Network with CAPA
 # input  definitons
+# 2/19 Guy 
 
 package Apache::inputtags;
 use strict;
 
 sub BEGIN {
-  &Apache::lonxml::register('Apache::inputtags',('textline','answergroup'));
+  &Apache::lonxml::register('Apache::inputtags',('textarea','textline','datasubmission'));
 }
 
+
 sub initialize_inputtags {
-  $Apache::inputtags::curvalue=0;
+  # list of current input ids
+  @Apache::inputtags::input=();
+  # list of all input ids seen in this problem
+  @Apache::inputtags::inputlist=();
+  # list of all current response ids
+  @Apache::inputtags::response=();
+  # list of all response ids seen in this problem
+  @Apache::inputtags::responselist=();
+  # list of whether or not a specific response was previously used
+  @Apache::inputtags::previous=();
+  # id of current part, 0 means that no part is current (inside <problem> only
+  $Apache::inputtags::part='';
+  # list of problem date statuses, the first element is for <problem>
+  # if there is a second element it is for the current <part>
+  @Apache::inputtags::status=();
+  # hash of defined params for the current response
+  %Apache::inputtags::params=();
+  # list of all ids, for <import>, these get join()ed and prepended
+  @Apache::inputtags::import=();
+}
+
+sub start_input {
+  my ($parstack,$safeeval)=@_;
+  my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
+  if ($id eq '') { $id = $Apache::lonxml::curdepth; }
+  push (@Apache::inputtags::input,$id);
+  push (@Apache::inputtags::inputlist,$id);
+  return $id;
+}
+
+sub end_input {
+  pop @Apache::inputtags::input;
+  return '';
+}
+
+sub start_textarea {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  my $result = "";
+  my $id = &start_input($parstack,$safeeval);
+  if ($target eq 'web') {
+    my $oldresponse = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].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'].'" '.
+	"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]);
+    }
+  }
+  return $result;
+}
+
+sub end_textarea {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  if ($target eq 'web') {
+    if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+      return "</textarea>";
+    }
+  }
+  &end_input;
+  return '';
 }
 
 sub start_textline {
-  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $result = "";
-  $Apache::inputtags::curvalue++;
   if ($target eq 'web') {
-    $result= '<input name="HWVAL'.$Apache::inputtags::curvalue.'" value="">';
+    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.$id.submission"};
+    if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+      $result= '<input type="text" name="HWVAL'.$id.'" value="'.
+	$oldresponse.'" size="'.$size.'" />';
+    } else {
+      $result='<i>'.$oldresponse.'</i>';
+    }
+  } elsif ($target eq 'edit') {
+    $result=&Apache::edit::tag_start($target,$token,
+				     &Apache::lonxml::description($token));
+    $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
+    $result.=&Apache::edit::end_table;
+  } elsif ($target eq 'modified') {
+    my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
+    if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   }
   return $result;
 }
 
 sub end_textline {
-  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  if ($target eq 'edit') { return ('','no'); }
+  return "";
 }
 
-sub start_answergroup {
+sub start_datasubmission {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  my $id = &Apache::response::start_response($parstack,$safeeval);
+  my $result;
+  if ($target eq 'meta') {
+    $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
+						   $token->[2]->{'type'},
+						   $token->[2]->{'display'});
+    $result .= &Apache::response::meta_package_write('datasubmission');
+  }
+  return $result;
 }
 
-sub end_answergroup {
-  return '<input type="submit" value="Submit All Answers"';
+sub end_datasubmission {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  my $result;
+  if ( $target eq 'web' ) {
+  } elsif ($target eq 'grade' ) {
+    if ( defined $ENV{'form.submitted'}) {
+      &Apache::response::setup_params('datasubmission');
+      my $partid = $Apache::inputtags::part;
+      my $id = $Apache::inputtags::response['-1'];
+      my $response = $ENV{'form.HWVAL'.$id};
+      my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
+      if ( $response =~ /[^\s]/) {
+	$Apache::lonhomework::results{"resource.$partid.$id.$name"}=
+	  $response;
+      }
+    }
+  }
+  &Apache::response::end_response;
+  return $result;
 }
 
+sub finalizeawards {
+  my $result='';
+  my $award;
+  if ($#_ == '-1') { $result = "NO_RESPONSE"; }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq '') {$result='MISSING_ANSWER'; last;}}
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
+  }
+
+  if ($result eq '' ) {
+    foreach $award (@_) { 
+      if ($award eq 'UNIT_FAIL' ||
+	  $award eq 'NO_UNIT' ||
+	  $award eq 'UNIT_NOTNEEDED') {
+	$result=$award; last;
+      }
+    }
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { 
+      if ($award eq 'WANTED_NUMERIC' || 
+	  $award eq 'BAD_FORMULA') {$result=$award; last;}
+    }
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
+  }
+  if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
+  }
+  if ($result eq '' ) { $result='EXACT_ANS'; }
+  return $result
+}
+
+sub decideoutput {
+  my ($award,$solved,$previous)=@_;
+  my $message='';
+  my $button=0;
+  my $previousmsg;
+
+  if ($previous) { $previousmsg='You have entered that answer before'; }
+
+  if      ($solved =~ /^correct/) {
+    $message = "<b>You are correct.</b> Your receipt is ".
+      &Apache::lonnet::receipt;
+    $button=0;
+    $previousmsg='';
+  } elsif ($solved =~ /^excused/) {
+    $message = "<b>You are excused from the problem.</b>";
+    $button=0;
+    $previousmsg='';
+  } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
+    if ($solved =~ /^incorrect/ || $solved eq '') {
+      $message = "Incorrect";
+      $button=1;
+    } else {
+      $message = "<b>You are correct.</b> Your receipt is ".
+	&Apache::lonnet::receipt;
+      $button=0;
+      $previousmsg='';
+    }
+  } elsif ($award eq 'NO_RESPONSE') {
+    $message = '';
+    $button=1;
+  } elsif ($award eq 'MISSING_ANSWER') {
+    $message = 'Some parts were not submitted';
+    $button = 1;
+  } elsif ($award eq 'WANTED_NUMERIC') {
+    $message = "This question expects a numeric answer";
+    $button=1;
+  } elsif ($award eq 'SIG_FAIL') {
+    $message = "Please adjust significant figures.";# you provided %s significant figures";
+    $button=1;
+  } elsif ($award eq 'UNIT_FAIL') {
+    $message = "Units incorrect."; #Computer reads units as %s";
+    $button=1;
+  } elsif ($award eq 'UNIT_NOTNEEDED') {
+    $message = "Only a number required.";# Computer reads units of %s";
+    $button=1;
+  } elsif ($award eq 'NO_UNIT') {
+    $message = "Units required";
+    $button=1;
+  } elsif ($award eq 'BAD_FORMULA') {
+    $message = "Unable to understand formula";
+    $button=1;
+  } elsif ($award eq 'INCORRECT') {
+    $message = "Incorrect";
+    $button=1;
+  } elsif ($award eq 'SUBMITTED') {
+    $message = "Your submission has been recorded.";
+    $button=1;
+  } else {
+    $message = "Unknown message: $award";
+    $button=1;
+  }
+  return ($button,$message,$previousmsg);
+}
+
+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"} !~
+       /^correct/ ) {
+    #handle assignment of tries and solved status
+    if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
+      $Apache::lonhomework::results{"resource.$id.tries"} =
+	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+      $Apache::lonhomework::results{"resource.$id.solved"} =
+	'correct_by_student';
+      $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
+    } elsif ( $award eq 'INCORRECT' ) {
+      $Apache::lonhomework::results{"resource.$id.tries"} =
+	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+      $Apache::lonhomework::results{"resource.$id.solved"} =
+	'incorrect_attempted';
+    } elsif ( $award eq 'SUBMITTED' ) {
+      $Apache::lonhomework::results{"resource.$id.tries"} =
+	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+      $Apache::lonhomework::results{"resource.$id.solved"} =
+	'ungraded_attempted';
+    } elsif ( $award eq 'NO_RESPONSE' ) {
+      return '';
+    } else {
+      $Apache::lonhomework::results{"resource.$id.solved"} =
+	'incorrect_attempted';
+    }
+
+    # check if this was a previous submission if it was delete the
+    # unneeded data and update the previously_used attribute
+    if ( $previously_used eq 'PREVIOUSLY_USED') {
+      delete($Apache::lonhomework::results{"resource.$id.tries"});
+      $Apache::lonhomework::results{"resource.$id.previous"} = '1';
+    } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
+      #delete all data as they student didn't do anything
+      foreach my $key (keys(%Apache::lonhomework::results)) {
+	if ($key =~ /^resource\.$id\./) {
+	  &Apache::lonxml::debug("Removing $key");
+	  delete($Apache::lonhomework::results{$key});
+	}
+      }
+      #and since they didn't do anything we were never here
+      return '';
+    } else {
+      $Apache::lonhomework::results{"resource.$id.previous"} = '0';
+    }
+  }
+  $Apache::lonhomework::results{"resource.$id.award"} = $award;
+}
+
+sub grade {
+  my ($target) = @_;
+  my $id = $Apache::inputtags::part;
+  my $response='';
+  if ( defined $ENV{'form.submitted'}) {
+    my @awards = ();
+    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");
+      }
+    }
+    my $finalaward = &finalizeawards(@awards);
+    my $previously_used;
+    if ( $#Apache::inputtags::previous eq $#awards ) {
+      $previously_used = 'PREVIOUSLY_LAST';
+      foreach my $value (@Apache::inputtags::previous) {
+	if ($value eq 'PREVIOUSLY_USED' ) {
+	  $previously_used = $value;
+	  last;
+	}
+      }
+    }
+    &Apache::lonxml::debug("final award $finalaward, $previously_used");
+    &setgradedata($finalaward,$id,$previously_used);
+  }
+  return '';
+}
+
+sub gradestatus {
+  my ($id) = @_;
+  my $showbutton = 1;
+  my $message = '';
+  my $trystr='';
+  my $button='';
+  my $previousmsg='';
+
+  my $status = $Apache::inputtags::status['-1'];
+  &Apache::lonxml::debug("gradestatus has :$status:");
+  if ( $status ne 'CLOSED' ) {  
+    my $award = $Apache::lonhomework::history{"resource.$id.award"};
+    my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
+    my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
+    &Apache::lonxml::debug("Found Award |$award|$solved|");
+    if ( $award ne '' ) {
+      &Apache::lonxml::debug('Getting message');
+      ($showbutton,$message,$previousmsg) =
+	&decideoutput($award,$solved,$previous);
+      $message="<td bgcolor=\"#aaffaa\">$message</td>";
+      if ($previousmsg) {
+	$previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
+      }
+    }
+    my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
+    my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
+    &Apache::lonxml::debug("got maxtries of :$maxtries:");
+    if ( $tries eq '' ) { $tries = '0'; }
+    if ( $maxtries eq '' ) { $maxtries = '2'; } 
+    if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
+    if ( $showbutton ) {
+      $trystr = "<td>Tries $tries/$maxtries</td>";
+    }
+    if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
+    if ( $showbutton ) { 
+      $button = '<br /><input type="submit" name="submit" value="Submit All Answers" />';
+    }
+  }
+  my $output= $previousmsg.$message.$trystr;
+  if ($output =~ /^\s*$/) {
+    return $button;
+  } else {
+    return $button.'<table><tr>'.$previousmsg.$message.$trystr.'</tr></table>';
+  }
+}
 1;
 __END__