# The LON-CAPA option response handler
#
# Option list style responses
#
# YEAR=2001
# 1/19,2/7,2/19,2/21,2/22,3/1,5/4,5/21,5/31,6/1,6/2,6/5,6/11 Guy Albertelli
# 6/12,6/16,6/26,6/27,7/18 Guy Albertelli
# 8/6 Scott Harrison
package Apache::optionresponse;
use strict;
use Apache::response;
# ======================================================================= BEGIN
sub BEGIN {
&Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
}
# ================================ Start option response (return scalar string)
sub start_optionresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result = '';
#when in a radiobutton response use these
&Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil',
'conceptgroup'));
push (@Apache::lonxml::namespace,'optionresponse');
my $id = &Apache::response::start_response($parstack,$safeeval);
if ($target eq 'edit') {
$result .= &Apache::edit::start_table($token).
"<tr><td>Multiple Option Response Question</td><td>Delete:".
&Apache::edit::deletelist($target,$token).
"</td><td> </td></tr><tr><td colspan=\"3\">\n";
$result .= &Apache::edit::text_arg('Max Number Of Foils:','max',
$token,'4')."</td></tr>";
$result .= "<tr><td colspan=\"3\">\n";
}
if ($target eq 'modified') {
my $constructtag = &Apache::edit::get_new_args($token,$parstack,
$safeeval,'max');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
# ================================== End option response (return scalar string)
sub end_optionresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
&Apache::response::end_response;
pop @Apache::lonxml::namespace;
my $result;
if ($target eq 'edit') { $result = &Apache::edit::end_table(); }
return $result;
}
# ===================================== Start foil group (return scalar string)
%Apache::response::foilgroup = {};
sub start_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result = '';
%Apache::response::foilgroup = {};
$Apache::optionresponse::conceptgroup = 0;
&Apache::response::setrandomnumber();
if ($target eq 'edit') {
my $optionlist = "<option></option>\n";
my $option;
my @opt;
eval '@opt ='.
&Apache::lonxml::get_param('options',$parstack,$safeeval);
my $count = 1;
foreach $option (@opt) {
$optionlist .= "<option value=\"$count\">$option</option>\n";
$count++;
}
my $insertlist = &Apache::edit::insertlist($target,$token);
$result .= &Apache::edit::start_table($token);
$result .= (<<ENDTABLE);
<tr><td>Select Options</td>
<td>
Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
</td>
<td>Delete an Option:
<select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
</td>
</tr>
<tr><td colspan="3">$insertlist<br />
ENDTABLE
}
if ($target eq 'modified') {
my @options;
my $optchanged=0;
eval '@options ='.
&Apache::lonxml::get_param('options',$parstack,$safeeval);
if ($ENV{"form.$Apache::lonxml::curdepth.deleteopt"}) {
my $delopt=$ENV{"form.$Apache::lonxml::curdepth.deleteopt"};
&Apache::lonxml::debug("Deleting :$delopt:");
splice(@options,$delopt-1,1);
$optchanged = 1;
}
if ($ENV{"form.$Apache::lonxml::curdepth.options"}) {
my $newopt = $ENV{"form.$Apache::lonxml::curdepth.options"};
if ($options[0]) {
push(@options,$newopt);
} else {
$options[0] = $newopt;
}
$optchanged = 1;
}
if ($optchanged) {
$result = "<foilgroup options=\"(";
foreach my $option (@options) {
$option =~ s/\'/\\\'/;
&Apache::lonxml::debug("adding option :$option:");
$result .= "'".$option."',";
}
chop $result;
$result .= ')">';
} # else nothing changed so just use the default mechanism
}
return $result;
}
# ======================================= End foil group (return scalar string)
sub end_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result;
if ($target eq 'grade' || $target eq 'web') {
my $name;
my ($count,$max) = &getfoilcounts($parstack,$safeeval);
if ($count>$max) { $count = $max }
&Apache::lonxml::debug("Count is $count from $max");
my @opt;
eval '@opt ='.
&Apache::lonxml::get_param('options',$parstack,$safeeval);
&Apache::lonxml::debug("Options are $#opt");
if ($target eq 'web') {
$result=&displayfoils($count,@opt);
} elsif ( $target eq 'grade') {
if ( defined $ENV{'form.submitted'}) {
my @whichopt = &whichfoils($count);
my $temp=1;my $name;
my $allresponse;
my $right=0;
my $wrong=0;
my $ignored=0;
foreach $name (@whichopt) {
my $response = $ENV{'form.HWVAL_'.
$Apache::inputtags::response['-1'].
":$temp"};
$allresponse .= "$response:";
if ( $response =~ /[^\s]/) {
&Apache::lonxml::debug("submitted a $response".
"<br />\n");
my $value = $Apache::response::foilgroup{$name.
'.value'};
if ($value eq $response) {$right++;} else {$wrong++;}
} else {
$ignored++;
}
$temp++;
}
my $id = $Apache::inputtags::response['-1'];
$Apache::lonhomework::results{"resource.".
$Apache::inputtags::part.".$id.submission"} = $allresponse;
&Apache::lonxml::debug("Got $right right and $wrong wrong, ".
"and $ignored were ignored");
if ($wrong==0 && $ignored==0) {
$Apache::lonhomework::results{"resource.".
$Apache::inputtags::part.".$id.awarddetail"}
= 'EXACT_ANS';
} else {
$Apache::lonhomework::results{"resource.".
$Apache::inputtags::part.".$id.awarddetail"}
= 'INCORRECT';
}
}
}
}
if ($target eq 'edit') {
$result .= &Apache::edit::end_table();
}
return $result;
}
# ==================================== Get foil counts (return 2 element array)
sub getfoilcounts {
my ($parstack,$safeeval) = @_;
my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
# +1 since instructors will count from 1
my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
return ($count,$max);
}
# =============================================== Which foils (return an array)
sub whichfoils {
my ($max)=@_;
my @names = @{ $Apache::response::foilgroup{'names'} };
my @whichopt =();
while ((($#whichopt+1) < $max) && ($#names > -1)) {
&Apache::lonxml::debug("Have $#whichopt max is $max");
my $aopt=int(rand($#names+1));
&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking ".
$aopt);
$aopt=splice(@names,$aopt,1);
&Apache::lonxml::debug("Picked $aopt");
push (@whichopt,$aopt);
}
return @whichopt;
}
# ======================================== Display foils (return scalar string)
sub displayfoils {
my ($max,@opt) = @_;
my @names = @{ $Apache::response::foilgroup{'names'} };
my @truelist;
my @falselist;
my $result;
my $name;
my @whichopt = &whichfoils($max);
my $optionlist = "<option></option>\n";
my $option;
foreach $option (@opt) {
$optionlist .= "<option>$option</option>\n";
}
if ($Apache::lonhomework::history{"resource.".
$Apache::inputtags::part.
".solved"} =~ /^correct/ ) {
foreach $name (@whichopt) {
$result.="<br />".$Apache::response::foilgroup{$name.'.value'}.
":".$Apache::response::foilgroup{$name.'.text'}."\n";
}
} else {
my $temp=1;
foreach $name (@whichopt) {
$result .= "<br /><select ".
"name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\">".
$optionlist.
"</select>\n".$Apache::response::foilgroup{$name.'.text'}."\n";
$temp++;
}
}
return $result."<br />";
}
# ================================== Start concept group (return scalar string)
sub start_conceptgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
$Apache::optionresponse::conceptgroup = 1;
%Apache::response::conceptgroup = {};
my $result;
if ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,
"Concept Grouped Foils");
$result .= &Apache::edit::text_arg('Concept:','concept',$token,'50').
"</td></tr>";
$result .= "<tr><td colspan=\"3\">\n";
}
if ($target eq 'modified') {
my $constructtag = &Apache::edit::get_new_args($token,$parstack,
$safeeval,'concept');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
# ==================================== End concept group (return scalar string)
sub end_conceptgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
$Apache::optionresponse::conceptgroup = 0;
my $result = '';
if ($target eq 'web' || $target eq 'grade') {
#if not there aren't any foils to display and thus no question
if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
my @names = @{ $Apache::response::conceptgroup{'names'} };
my $pick = int rand $#names+1;
my $name = $names[$pick];
push @{ $Apache::response::foilgroup{'names'} }, $name;
$Apache::response::foilgroup{"$name.value"} =
$Apache::response::conceptgroup{"$name.value"};
$Apache::response::foilgroup{"$name.text"} =
$Apache::response::conceptgroup{"$name.text"};
my $concept =
&Apache::lonxml::get_param('concept',$parstack,$safeeval);
$Apache::response::foilgroup{"$name.concept"} = $concept;
&Apache::lonxml::debug("Selecting $name in $concept");
}
}
if ($target eq 'edit') {
$result = &Apache::edit::end_table();
}
return $result;
}
# ======================================================== Insert concept group
sub insert_conceptgroup {
my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil().
"\n\t\t</conceptgroup>\n";
return $result;
}
# =========================================== Start foil (return scalar string)
sub start_foil {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result = '';
if ($target eq 'web') { &Apache::lonxml::startredirection; }
if ($target eq 'edit') {
$result = &Apache::edit::tag_start($target,$token,"Foil");
my $level = '-2';
if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
my @opt;
eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,
$safeeval,$level);
$result .= &Apache::edit::text_arg('Name:','name',$token);
$result .= &Apache::edit::select_or_text_arg('Correct Option:',
'value',
['unused',(@opt)],$token,
'15');
$result .= '</td></tr><tr><td colspan="3">';
}
if ($target eq 'modified') {
my $constructtag = &Apache::edit::get_new_args($token,$parstack,
$safeeval,'value',
'name');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
# ============================================= End foil (return scalar string)
sub end_foil {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $text = '';
my $result = '';
if ($target eq 'web') { $text=&Apache::lonxml::endredirection; }
if ($target eq 'web' || $target eq 'grade') {
my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
if ($value ne 'unused') {
my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
&Apache::lonxml::debug("Got a name of :$name:");
if (!$name) { $name = $Apache::lonxml::curdepth; }
&Apache::lonxml::debug("Using a name of :$name:");
if ( $Apache::optionresponse::conceptgroup ) {
push @{ $Apache::response::conceptgroup{'names'} }, $name;
$Apache::response::conceptgroup{"$name.value"} = $value;
$Apache::response::conceptgroup{"$name.text"} = $text;
} else {
push @{ $Apache::response::foilgroup{'names'} }, $name;
$Apache::response::foilgroup{"$name.value"} = $value;
$Apache::response::foilgroup{"$name.text"} = $text;
}
}
}
if ($target eq 'edit') {
$result .= &Apache::edit::tag_end($target,$token,'');
}
return $result;
}
# ========================================== Insert foil (return scalar string)
sub insert_foil {
return '
<foil name="" value="unused">
<startouttext />
<endouttext />
</foil>';
}
1;
__END__
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