File:
[LON-CAPA] /
loncom /
homework /
optionresponse.pm
Revision
1.158:
download - view:
text,
annotated -
select for diffs
Mon May 4 13:42:50 2009 UTC (15 years, 3 months ago) by
onken
Branches:
MAIN
CVS tags:
version_2_8_99_0,
bz6209-base,
bz6209,
bz5969,
bz2851,
HEAD,
GCI_2,
BZ5971-printing-apage,
BZ5434-fox
Disable printing PDF-Forms-Comboboxes in optionresponse if a problem is not answerable for students.
and
Correct/simpliefy a RegEx which parse Answers of options.
# LearningOnline Network with CAPA
# option list style responses
#
# $Id: optionresponse.pm,v 1.158 2009/05/04 13:42:50 onken 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/
#
package Apache::optionresponse;
use strict;
use Apache::response();
use Apache::lonlocal;
use Apache::lonnet;
BEGIN {
&Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
}
sub start_optionresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
#when in a option response use these
&Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
push (@Apache::lonxml::namespace,'optionresponse');
my $id = &Apache::response::start_response($parstack,$safeeval);
%Apache::hint::option=();
undef(%Apache::response::foilnames);
if ($target eq 'edit') {
$result.=&Apache::edit::start_table($token)
.'<tr><td><span class="LC_nobreak">'.&mt('Multiple Option Response Question').'</span> '
.&Apache::loncommon::help_open_topic('Option_Response_Problems')."</td>"
.'<td><span class="LC_nobreak">'.&mt('Delete?').' '
.&Apache::edit::deletelist($target,$token)
.'</span></td>'
."<td> "
.&Apache::edit::end_row()
.&Apache::edit::start_spanning_row()
."\n";
$result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
$token,'4').
&Apache::edit::select_arg('Randomize Foil Order:','randomize',
['yes','no'],$token).
&Apache::edit::select_arg(&mt('Display of options when printed'),'TeXlayout',
[['horizontal','Normal list'],
['vertical','Listed in a vertical column']],$token).
&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'max','randomize',
'TeXlayout');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
} elsif ($target eq 'meta') {
$result=&Apache::response::meta_package_write('optionresponse');
} elsif ($target eq 'analyze') {
my $part_id="$Apache::inputtags::part.$id";
$Apache::lonhomework::analyze{"$part_id.type"} = 'optionresponse';
push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} }, 1);
}
return $result;
}
sub end_optionresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
&Apache::response::end_response;
pop @Apache::lonxml::namespace;
&Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
my $result;
if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
undef(%Apache::response::foilnames);
return $result;
}
%Apache::response::foilgroup=();
sub start_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
%Apache::response::foilgroup=();
$Apache::optionresponse::conceptgroup=0;
&Apache::response::pushrandomnumber();
if ($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>
ENDTABLE
$result.= &Apache::edit::checked_arg('Print options:','texoptions',
[ ['nochoice','Don\'t show option list'] ]
,$token);
$result.= &Apache::edit::end_row();
$result.= &Apache::edit::start_spanning_row();
$result.= $insertlist.'<br />';
}
if ($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;
}
my $rebuildtag = &Apache::edit::get_new_args($token,$parstack,$safeeval,
('texoptions'));
if ($optchanged || $rebuildtag ) {
$result = "<foilgroup options=\"(";
foreach my $option (@options) {
$option=~s/\'/\\\'/g;
&Apache::lonxml::debug("adding option :$option:");
$result .="'".$option."',";
}
chop $result;
$result.=')" ';
$result .= 'texoptions="'.$token->[2]{'texoptions'}.'" ';
$result .= '>';
} # else nothing changed so just use the default mechanism
}
if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
if($env{'form.pdfFormFields'} ne 'yes') {
$result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
\begin{enumerate} ';
} else {
$result .= "\\\\";
}
}
return $result;
}
sub end_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
$target eq 'tex' || $target eq 'analyze') {
my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
my $name;
my @opt;
eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
&Apache::lonxml::debug("options:".join(':',@opt));
my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
-2,0);
if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
&Apache::lonxml::debug("Options are $#opt");
my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
$safeeval,'-2');
if ($target eq 'web' || $target eq 'tex') {
$result.=&displayfoils($target,$max,$randomize,$TeXlayout,@opt);
$Apache::lonxml::post_evaluate=0;
} elsif ( $target eq 'answer') {
$result.=&displayanswers($max,$randomize,@opt);
} elsif ( $target eq 'analyze') {
my @shown = &whichfoils($max,$randomize);
&Apache::response::analyze_store_foilgroup(\@shown,
['text','value','location']);
my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
} elsif ( $target eq 'grade') {
if ( &Apache::response::submitted()) {
my @whichopt = &whichfoils($max,$randomize);
my $temp=1;my $name;
my %responsehash;
my %grade;
my $right=0;
my $wrong=0;
my $ignored=0;
foreach $name (@whichopt) {
my $response=&Apache::response::getresponse($temp);
if ($env{'form.submitted'} eq 'scantron' && $response=~/\S/) {
$response = $opt[$response];
}
if ( $response =~ /[^\s]/) {
$responsehash{$name}=$response;
my $value=$Apache::response::foilgroup{$name.'.value'};
&Apache::lonxml::debug("submitted a $response for $value<br />\n");
if ($value eq $response) {
$grade{$name}='1'; $right++;
} else {
$grade{$name}='0'; $wrong++;
}
} else {
$ignored++;
}
$temp++;
}
my $part=$Apache::inputtags::part;
my $id = $Apache::inputtags::response['-1'];
my $responsestr=&Apache::lonnet::hash2str(%responsehash);
my $gradestr =&Apache::lonnet::hash2str(%grade);
my %previous=&Apache::response::check_for_previous($responsestr,
$part,$id);
&Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
$Apache::lonhomework::results{"resource.$part.$id.submission"}=
$responsestr;
$Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
if ($Apache::lonhomework::type eq 'survey') {
if ($ignored == 0) {
my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
&Apache::response::handle_previous(\%previous,$ad);
} elsif ($wrong==0 && $right==0) {
} else {
my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
&Apache::response::handle_previous(\%previous,$ad);
}
} elsif (!$Apache::lonhomework::scantronmode) {
my $ad;
if ($wrong==0 && $ignored==0) {
$ad='EXACT_ANS';
} elsif ($wrong==0 && $right==0) {
#nothing submitted
} else {
if ($ignored==0) {
$ad='INCORRECT';
} else {
$ad='MISSING_ANSWER';
}
}
$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
&Apache::response::handle_previous(\%previous,$ad);
} else {
my $ad;
if ($wrong==0 && $right==0) {
#nothing submitted only assign a score if we
#need to override a previous grade
if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
$ad='ASSIGNED_SCORE';
}
} else {
$ad='ASSIGNED_SCORE';
}
$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
$Apache::lonhomework::results{"resource.$part.$id.awarded"}=
$right/(scalar(@whichopt));
$Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
scalar(@whichopt);
}
}
}
my $part_id = $Apache::inputtags::part;
my $response_id = $Apache::inputtags::response[-1];
&Apache::lonxml::increment_counter(&getfoilcounts($max),
"$part_id.$response_id");
if ($target eq 'analyze') {
&Apache::lonhomework::set_bubble_lines();
}
} elsif ($target eq 'edit') {
$result.=&Apache::edit::end_table();
}
if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
if($env{'form.pdfFormFields'} ne 'yes') {
$result .= '\end{enumerate}';
} else {
$result .= "\\\\";
}
}
&Apache::response::poprandomnumber();
return $result;
}
sub getfoilcounts {
my ($max)=@_;
# +1 since instructors will count from 1
my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
if (&Apache::response::showallfoils()) { $max=$count; }
if ($count>$max) { $count=$max }
&Apache::lonxml::debug("Count is $count from $max");
return $count;
}
sub whichfoils {
my ($max,$randomize)=@_;
return &Apache::response::whichorder($max,$randomize,
&Apache::response::showallfoils(),
\%Apache::response::foilgroup);
}
sub displayanswers {
my ($max,$randomize,@opt)=@_;
if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
my @names = @{ $Apache::response::foilgroup{'names'} };
my @whichopt = &whichfoils($max,$randomize);
my $result;
if ($Apache::lonhomework::type eq 'exam') {
my $i = 0;
my %opt = map { ($_,$i++) } @opt;
$i = 0;
my @alphabet = ('A'..'Z');
foreach my $name (@whichopt) {
$result.=&Apache::response::answer_header('optionresponse',$i++);
$result.=&Apache::response::answer_part('optionresponse',
$alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
$result.=&Apache::response::answer_part('optionresponse',
$Apache::response::foilgroup{$name.'.value'});
$result.=&Apache::response::answer_footer('optionresponse');
}
} else {
$result=&Apache::response::answer_header('optionresponse');
foreach my $name (@whichopt) {
$result.=&Apache::response::answer_part('optionresponse',
$Apache::response::foilgroup{$name.'.value'});
}
$result.=&Apache::response::answer_footer('optionresponse');
}
return $result;
}
sub check_for_invalid {
my ($names,$options) = @_;
my %bad_names;
foreach my $name (@{ $names }) {
my $value=$Apache::response::foilgroup{$name.'.value'};
my $found=0;
foreach my $option (@{ $options }) {
if ($value eq $option) { $found=1; }
}
if (!$found) { $bad_names{$name}=$value; }
}
if (%bad_names) {
my $error=&mt('The question can not be gotten correct, '.
'the following foils in the <optionresponse> '.
'have invalid correct options').' <br /><tt>'.
join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
"</tt>";
&Apache::lonxml::error($error);
}
}
sub displayfoils {
my ($target,$max,$randomize,$TeXlayout,@opt)=@_;
if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
my @names = @{ $Apache::response::foilgroup{'names'} };
my @truelist;
my @falselist;
my $result;
my $name;
my $displayoptionintex=1;
my @alphabet = ('A'..'Z');
my @whichopt = &whichfoils($max,$randomize);
&check_for_invalid(\@whichopt,\@opt);
my $part=$Apache::inputtags::part;
my $id=$Apache::inputtags::response[-1];
my $break;
my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
if ( ($target ne 'tex') &&
&Apache::response::show_answer() ) {
my $temp=1;
foreach $name (@whichopt) {
my $text=$Apache::response::foilgroup{$name.'.text'};
my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
my $lastopt=$lastresponse{$name};
if ($text!~/^\s*$/) { $break='<br />'; }
$result.=$break;
if ($target eq 'web') {
my $value=$Apache::response::foilgroup{$name.'.value'};
if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
if ($text=~/^\s*$/) {
$text=$value.$text;
} else {
$text='<b>'.$value.':</b> '.$text;
}
} else {
$text='•'.$text;
}
$result.=$text."\n";
}
if ($Apache::lonhomework::type eq 'exam') {
$result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
}
$temp++;
}
} else {
my $temp=1;
my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
my $internal_counter=$Apache::lonxml::counter;
foreach $name (@whichopt) {
my $text=$Apache::response::foilgroup{$name.'.text'};
if ($text!~/^\s*$/) {
if ($target eq 'tex') {
$break='\vskip 0 mm ';
} elsif ($target eq 'web') {
$break='<br />';
}
}
my $lastopt=$lastresponse{$name};
my $optionlist="<option></option>\n";
if($target eq 'tex' and $env{'form.pdfFormFields'} eq 'yes'
&& $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
my $fieldname = $env{'request.symb'}.'&part_'.$Apache::inputtags::part.'&optionresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'].':'.$temp;
$optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
}
foreach my $option (@opt) {
my $escopt=&HTML::Entities::encode($option,'\'"&<>');
if ($option eq $lastopt) {
if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
&& $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
$optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
} else {
$optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
}
} else {
if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
&& $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
$optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
} else {
$optionlist.="<option value='".$escopt."'>$option</option>\n";
}
}
}
if ($target ne 'tex') {
if ($Apache::lonhomework::type ne 'exam') {
$optionlist='<select onchange="javascript:setSubmittedPart(\''.
$part.'\');" name="HWVAL_'.
$Apache::inputtags::response['-1'].':'.$temp.'">'.
$optionlist."</select>\n";
} else {
$optionlist='<u>'.(' 'x10).'</u>';
}
if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
if ($Apache::lonhomework::type ne 'exam') {
$text='•'.$text;
}
} else {
if ($Apache::lonhomework::type ne 'exam') {
$text=$optionlist.$text;
}
}
$result.=$break.$text."\n";
if ($Apache::lonhomework::type eq 'exam') {
$result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
}
$temp++;
} else {
my $texoptionlist='';
if ($displayoptionintex &&
$Apache::lonhomework::type ne 'exam') {
$texoptionlist = &optionlist_correction($TeXlayout,@opt);
}
if ($text=~/<drawoptionlist\s*\/>/) {
$text=~s|<drawoptionlist\s*\/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |g;
}
if ($text=~m/\\item /) {
if ($Apache::lonhomework::type eq 'exam') {
$text=~s/\\item/\\vskip 2 mm/;
} elsif ($env{'form.pdfFormFields'} ne 'yes') {
$result.= $texoptionlist.$text;
}
} else {
if ($Apache::lonhomework::type eq 'exam') {
$result.= $texoptionlist.' '.$text;
} elsif ($env{'form.pdfFormFields'} ne 'yes') {
if ($text=~/\S/) {
$result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;
} else {
$result.= $texoptionlist;
}
}
}
if ($Apache::lonhomework::type eq 'exam') {
$result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.
$internal_counter.'}.]'.&bubbles(\@alphabet,\@opt).
'\end{enumerate} \vskip -8 mm \strut ';
$internal_counter++;
}
if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
&& $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
$text =~ s/\\item//m;
$result .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut \\\\';
$temp++;
}
$displayoptionintex=0;
}
}
}
if ($target eq 'web') {
&Apache::response::setup_prior_tries_hash(\&Apache::rankresponse::format_prior_answer,
[\@whichopt,
'submissiongrading']);
}
if ($target ne 'tex') {
return $result.$break;
} else {
return $result;
}
}
sub optionlist_correction {
my ($TeXlayout,@options) = @_;
my $texoptionlist='\\item [] '.&mt('Choices:').' ';
if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
if (scalar(@options) > 0) {
foreach my $option (@options) {
$texoptionlist.='{\bf '.
&Apache::lonxml::latex_special_symbols($option).
'}';
if ($TeXlayout eq 'vertical') {
$texoptionlist.=' \vskip 0 mm ',
} else {
$texoptionlist.=', ';
}
}
$texoptionlist=~s/, $//;
if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
} else {
if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
}
return $texoptionlist;
}
sub webbubbles {
my ($ropt,$ralphabet,$temp,$lastopt)=@_;
my @opt=@$ropt;
my @alphabet=@$ralphabet;
my $result='';
my $number_of_bubbles = $#opt + 1;
$result.= '<table border="1"><tr>';
for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
my $checked='';
if ($lastopt eq $opt[$ind]) {
$checked=' checked="on" ';
}
$result.='<td><input type="radio" name="HWVAL_'.
$Apache::inputtags::response['-1'].':'.$temp.
'" value="'.$opt[$ind].'" '.$checked.' />';
if ($alphabet[$ind]) {
$result.=$alphabet[$ind].': ';
}
$result.=$opt[$ind].'</td>';
}
$result.='</tr></table>';
return $result;
}
sub bubbles {
my ($ralphabet,$ropt,$response, $max_width) = @_;
my @alphabet = @$ralphabet;
my @opt = @$ropt;
my ($result,$head,$line) =('','','');
my $number_of_bubbles = $#opt + 1;
my $current_length = 0;
my $textwidth;
if (defined($max_width)) {
$textwidth=$max_width;
&Apache::lonxml::debug("Max width passed in: $max_width");
} elsif ($env{'form.textwidth'} ne '') {
$env{'form.textwidth'}=~/(\d+)/;
$textwidth=$1;
&Apache::lonxml::debug("Max width from form: $textwidth");
} else {
$env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
$textwidth=$1.'.'.$2;
&Apache::lonxml::debug("Max width defaults? $textwidth");
}
&Apache::lonxml::debug("Final maxwidth: $textwidth");
for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
my $leftmargin;
$opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
$current_length += (length($opt[$ind])+length($alphabet[$ind])+4)*2;
if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
$line.='\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
$head.='lr';
} else {
$line=~s/\&\s*$//;
$result.='\vskip -2 mm\noindent\setlength{\tabcolsep}{2 mm}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
$line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;
$head ='lr';
$current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;
}
}
return $result;
}
sub start_conceptgroup {
my ($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').
&Apache::edit::end_row().&Apache::edit::start_spanning_row();
}
if ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
sub end_conceptgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
$Apache::optionresponse::conceptgroup=0;
my $result='';
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
$target eq 'tex' || $target eq 'analyze') {
#if not there aren't any foils to display and thus no question
&Apache::response::pick_foil_for_concept($target,
['value','text','location'],
\%Apache::hint::option,
$parstack,$safeeval);
} elsif ($target eq 'edit') {
$result=&Apache::edit::end_table();
}
return $result;
}
sub insert_conceptgroup {
my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
return $result;
}
sub start_foil {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
&Apache::lonxml::startredirection;
if ($target eq 'analyze') {
&Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
}
} elsif ($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');
my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
$safeeval,'-3');
if ($randomize ne 'no') {
$result.=&Apache::edit::select_arg('Location:','location',
['random','top','bottom'],$token);
}
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
'value','name','location');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
sub end_foil {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $text ='';
my $result = '';
if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
$text=&Apache::lonxml::endredirection;
if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;}
}
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
|| $target eq 'tex' || $target eq 'analyze') {
my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
$text='\vskip 5mm $\triangleright$ '.$text;
}
if ($value ne 'unused') {
my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
&Apache::lonxml::debug("Got a name of :$name:");
if ($name eq "") {
&Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
$name=$Apache::lonxml::curdepth;
}
&Apache::lonxml::debug("Using a name of :$name:");
if (defined($Apache::response::foilnames{$name})) {
&Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
}
$Apache::response::foilnames{$name}++;
my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
if ( $Apache::optionresponse::conceptgroup
&& !&Apache::response::showallfoils() ) {
push @{ $Apache::response::conceptgroup{'names'} }, $name;
$Apache::response::conceptgroup{"$name.value"} = $value;
$Apache::response::conceptgroup{"$name.text"} = $text;
$Apache::response::conceptgroup{"$name.location"} = $location;
} else {
push @{ $Apache::response::foilgroup{'names'} }, $name;
$Apache::response::foilgroup{"$name.value"} = $value;
$Apache::response::foilgroup{"$name.text"} = $text;
$Apache::response::foilgroup{"$name.location"} = $location;
}
}
}
if ($target eq 'edit') {
$result.= &Apache::edit::tag_end($target,$token,'');
}
return $result;
}
sub start_drawoptionlist {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target !~ /^(?:meta|answer|modified|edit)$/) {
return $token->[4];
}
}
sub end_drawoptionlist {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target !~ /^(?:meta|answer|modified|edit)$/) {
return $token->[2];
}
}
sub insert_foil {
return '
<foil name="" value="unused">
<startouttext />
<endouttext />
</foil>';
}
sub insert_drawoptionlist {
return '<drawoptionlist />';
}
1;
__END__
=head1 NAME
Apache::optionresponse.pm;
=head1 SYNOPSIS
Handles tags associated with showing a list of
options.
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 HANDLER SUBROUTINE
start_optionresponse()
=head1 OTHER SUBROUTINES
=over
=item end_optionresponse()
=item start_foilgroup()
=item end_foilgroup()
=item getfoilcounts()
=item displayanswers()
=item check_for_invalid()
=item displayfoils()
=item optionlist_correction()
=item webbubbles()
=item bubbles()
=item start_conceptgroup()
=item end_conceptgroup()
=item insert_conceptgroup()
=item start_foil()
=item end_foil()
=item start_drawoptionlist()
=item end_drawoptionlist()
=item insert_foil()
=item insert_drawoptionlist()
=back
=cut
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