# The LON-CAPA radio button response handler
#
# Multiple choice style responses
#
# YEAR=2001
# 1/8,1/11,1/12,1/15,1/19,2/5,2/19,2/21,2/22,3/1,4/23,5/4,5/31 Guy Albertelli
# 6/1,6/2 Guy Albertelli
# 8/6 Scott Harrison
package Apache::radiobuttonresponse;
use strict;
# ======================================================================= BEGIN
sub BEGIN {
&Apache::lonxml::register('Apache::radiobuttonresponse',
('radiobuttonresponse'));
}
# ================================================= Start radio button response
sub start_radiobuttonresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
#when in a radiobutton response use these
&Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil',
'conceptgroup'));
my $id = &Apache::response::start_response($parstack,$safeeval);
return '';
}
# =================================================== End radio button response
sub end_radiobuttonresponse {
&Apache::response::end_response;
return '';
}
%Apache::response::foilgroup = {};
# ============================================================ Start foil group
sub start_foilgroup {
%Apache::response::foilgroup = {};
$Apache::radiobuttonresponse::conceptgroup = 0;
&Apache::response::setrandomnumber();
return '';
}
# ================================================================ Store survey
sub storesurvey {
if ( defined $ENV{'form.submitted'}) {
my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
&Apache::lonxml::debug("Here I am!:$response:");
if ( $response =~ /[^\s]/) {
my $id = $Apache::inputtags::response['-1'];
$Apache::lonhomework::results{"resource.$Apache::inputtags::part".
".$id.submission"}=$response;
$Apache::lonhomework::results{"resource.$Apache::inputtags::part".
".$id.awarddetail"}='SUBMITTED';
&Apache::lonxml::debug("submitted a $response<br />\n");
}
}
return '';
}
# ======================================= End foil group (return scalar string)
sub end_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result;
if ($target ne 'meta') {
my $style = &Apache::lonxml::get_param('style',$parstack,$safeeval,
'-2');
if ( $style eq 'survey' ) {
if ($target eq 'web') {
$result = &displayallfoils();
} elsif ( $target eq 'grade' ) {
$result = &storesurvey();
}
} else {
my $name;
my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
my $count = 0;
# we will add in 1 of the true statements
if (($falsecnt+1) > $max) { $count = $max } else {
$count = $falsecnt+1; }
my $answer = int(rand ($count));
&Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
if ($target eq 'web') {
$result=&displayfoils($max,$answer);
} elsif ( $target eq 'grade') {
if ( defined $ENV{'form.submitted'}) {
my $response = $ENV{'form.HWVAL'.
$Apache::inputtags::response['-1']};
if ( $response =~ /[^\s]/) {
my $id = $Apache::inputtags::response['-1'];
$Apache::lonhomework::results{"resource.".
$Apache::inputtags::part.".
$id.submission"} = $response;
&Apache::lonxml::debug("submitted a $response<br />".
"\n");
if ($response == $answer) {
$Apache::lonhomework::results{"resource.".
$Apache::inputtags::part.
".$id.awarddetail"} = 'EXACT_ANS';
} else {
$Apache::lonhomework::results{"resource.".
$Apache::inputtags::part.
".$id.awarddetail"} = 'INCORRECT';
}
}
}
}
}
}
return $result;
}
# ==================================== Get foil counts (return 3 element array)
sub getfoilcounts {
my ($parstack,$safeeval)=@_;
my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
my @names = @{ $Apache::response::foilgroup{'names'} };
my $truecnt = 0;
my $falsecnt = 0;
my $name;
foreach $name (@names) {
if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
$truecnt++;
} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
$falsecnt++;
}
}
return ($truecnt,$falsecnt,$max);
}
# ==================================== Display all foils (return scalar string)
sub displayallfoils {
my $result;
&Apache::lonxml::debug("survey style display");
my @names = @{ $Apache::response::foilgroup{'names'} };
my $temp = 0;
my $id = $Apache::inputtags::response['-1'];
my $part = $Apache::inputtags::part;
my $lastresponse = $Apache::lonhomework::history{"resource.$part.$id.".
"submission"};
foreach my $name (@names) {
if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
$result .= "<br /><input type=\"radio\" name=\"HWVAL".
$Apache::inputtags::response['-1'].
"\" value=\"$temp\" ";
if ($lastresponse eq $temp) { $result .= 'checked="on"'; }
$result .= '>'.$Apache::response::foilgroup{$name.'.text'}.
"</input>\n";
$temp++;
}
}
return $result;
}
# ======================================== Display foils (return scalar string)
sub displayfoils {
my ($max,$answer) = @_;
my @names = @{ $Apache::response::foilgroup{'names'} };
my @truelist;
my @falselist;
my $result;
my $name;
foreach $name (@names) {
#result .= "<br /><b>$name</b> is <i> $Apache::response::foilgroup{$name.'.value'} </i>";
if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
push (@truelist,$name);
} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
push (@falselist,$name);
} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
} else {
&Apache::lonxml::error("Unknown state ".
$Apache::response::foilgroup{$name.'.value'}.
" for $name in <foilgroup>");
}
}
my $whichtrue = int(rand($#truelist+1));
&Apache::lonxml::debug("Max is $max, From $#truelist elms, picking ".
$whichtrue);
my @whichfalse = ();
while ((($#whichfalse+1) < $max) && ($#falselist > -1)) {
&Apache::lonxml::debug("Have $#whichfalse max is $max");
my $afalse = int(rand($#falselist+1));
&Apache::lonxml::debug("From $#falselist elms, picking $afalse");
$afalse = splice(@falselist,$afalse,1);
&Apache::lonxml::debug("Picked $afalse");
push (@whichfalse,$afalse);
}
splice(@whichfalse,$answer,0,$truelist[$whichtrue]);
&Apache::lonxml::debug("the true statement is $answer");
if ($Apache::lonhomework::history{
"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
foreach $name (@whichfalse) {
$result .= "<br />";
if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
$result .= 'Correct';
} else {
$result.='Incorrect';
}
$result .= ":".$Apache::response::foilgroup{$name.'.text'}.
"</input>\n";
}
} else {
my $temp=0;
my $id=$Apache::inputtags::response['-1'];
my $part=$Apache::inputtags::part;
my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.".
"submission"};
foreach $name (@whichfalse) {
$result.="<br /><input type=\"radio\" name=\"HWVAL".
$Apache::inputtags::response['-1'].
"\" value=\"$temp\" ";
if ($lastresponse eq $temp) { $result .= 'checked="on"'; }
$result .= '>'.$Apache::response::foilgroup{$name.'.text'}.
"</input>\n";
$temp++;
}
}
return $result."<br />";
}
# ========================================================= Start concept group
sub start_conceptgroup {
$Apache::radiobuttonresponse::conceptgroup = 1;
%Apache::response::conceptgroup = {};
return '';
}
# =========================================================== End concept group
sub end_conceptgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
$Apache::radiobuttonresponse::conceptgroup = 0;
if ($target eq 'web' || $target eq 'grade') {
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.text"} =
$Apache::response::conceptgroup{"$name.text"};
$Apache::response::foilgroup{"$name.value"} =
$Apache::response::conceptgroup{"$name.value"};
my $concept =
&Apache::lonxml::get_param('concept',$parstack,$safeeval);
$Apache::response::foilgroup{"$name.concept"} = $concept;
&Apache::lonxml::debug("Selecting $name in $concept");
}
return '';
}
# ================================================================== Start foil
sub start_foil {
&Apache::lonxml::startredirection;
return '';
}
# ==================================================================== End foil
sub end_foil {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $text = '';
if ($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);
if ( $Apache::radiobuttonresponse::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;
}
}
}
return '';
}
1;
__END__
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