File:
[LON-CAPA] /
loncom /
homework /
chemresponse.pm
Revision
1.87:
download - view:
text,
annotated -
select for diffs
Sun Feb 28 23:35:53 2010 UTC (14 years, 5 months ago) by
raeburn
Branches:
MAIN
CVS tags:
version_2_10_X,
version_2_10_1,
version_2_10_0_RC2,
version_2_10_0_RC1,
version_2_10_0,
loncapaMITrelate_1,
PRINT_INCOMPLETE_base,
PRINT_INCOMPLETE,
HEAD
- New awards for surveys:
ANONYMOUS ANONYMOUS_CREDIT SUBMITTED_CREDIT
- given for question types: anonsurvey, anonsurvey_cred, survey_cred.
- anonsurvey -- course personnel can not view both identity of submitter
and submission details.
- anonsurveycred -- same anonymity, but submitter receives 'awarded' for
submission
- surveycred - submitter receives 'awarded' for submission to survey.
# The LearningOnline Network with CAPA
# chemical equation style response
#
# $Id: chemresponse.pm,v 1.87 2010/02/28 23:35:53 raeburn 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::chemresponse;
use strict;
use Apache::lonxml;
use Apache::lonnet;
use Apache::lonlocal;
use lib '/home/httpd/lib/perl/';
use LONCAPA;
BEGIN {
&Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse','chem'));
}
sub chem_standard_order {
my ($reaction) = @_;
my ($re,$pr) = split(/->|<=>/,$reaction);
my @reactants = split(/\s\+/,$re);
my @products = split(/\s\+/,$pr);
foreach my $substance (@reactants,@products) {
$substance =~ s/(\^\d*)\s+/$1_/g; # protect superscript space
$substance =~ s/\s*//g; # strip whitespace
$substance =~ s/_/ /g; # restore superscript space
}
@reactants = sort @reactants;
@products = sort @products;
my $standard = '';
foreach my $substance (@reactants) {
$standard .= $substance;
$standard .= ' + ';
}
$standard =~ s/ \+ $//; # get rid of trailing plus sign
$standard .= ' -> ';
foreach my $substance (@products) {
$standard .= $substance;
$standard .= ' + ';
}
$standard =~ s/ \+ $//; # get rid of trailing plus sign
return $standard;
}
sub separate_jme_window {
my ($smile_input,$jme_input,$molecule,$options,$shown_text)=@_;
my $smilesection;
if (defined($smile_input)) {
$smilesection=<<SMILESECTION;
smiles = document.applets.JME.smiles();
opener.document.lonhomework.$smile_input.value = smiles;
SMILESECTION
}
my $jmesection;
if (defined($jme_input)) {
$jmesection=<<JMESECTION;
jmeFile = document.applets.JME.jmeFile();
opener.document.lonhomework.$jme_input.value = jmeFile;
JMESECTION
}
if ($molecule) { $molecule='<param name="jme" value="'.$molecule.'" />'; }
my $insert_answer;
if ($shown_text eq '') {
$insert_answer=
'<input type="button" name="submit" value="Insert Answer" onclick="javascript:submitSmiles();" />';
}
my $js = <<CHEMJS;
<script type="text/javascript">
function submitSmiles() {
jmeFile = document.applets.JME.jmeFile();
if (jmeFile == "") {
alert("Nothing to submit");
} else {
$jmesection
$smilesection
window.close();
}
}
function openHelpWindow() {
window.open("/adm/jme/jme_help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
}
function substituent(r) {document.applets.JME.setSubstituent(r);}
</script>
CHEMJS
my $start_page =
&Apache::loncommon::start_page('Molecule Editor',undef,
{'only_body' => 1,
'js_ready' => 1,
'bgcolor' => '#FFFFFF',});
my $end_page =
&Apache::loncommon::end_page({'js_ready' => 1,});
my $body=<<CHEMPAGE;
$js
<center>
<form>
<table width="440"><tr>
<td></td>
<td align="right">
<select onchange="javascript:substituent(options[selectedIndex].text)">
<option>Select substituent</option>
<option>-C(=O)OH</option>
<option>-C(=O)OMe</option>
<option>-OC(=O)Me</option>
<option>-CMe3</option>
<option>-CF3</option>
<option>-CCl3</option>
<option>-NO2</option>
<option>-SO2-NH2</option>
<option>-NH-SO2-Me</option>
<option>-NMe2</option>
<option>-C#N</option>
<option>-C#C-Me</option>
<option>-C#CH</option>
</select>
</td></tr>
</table>
<applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="440" height="390" mayscript>
You have to enable Java and JavaScript on your machine.
$molecule
<param name="options" value="$options" />
</applet><br />
<font face="arial,helvetica,sans-serif" size="-1"><a href="http://www.molinspiration.com/jme/index.html">JME Editor</a> courtesy of Peter Ertl, Novartis</font>
<br />
$insert_answer
<br />
<input type="button" value=" Close " onclick = "javascript:window.close()" />
<input type="button" value=" Help " onclick = "javascript:openHelpWindow()" />
</form>
</center>
CHEMPAGE
$body=&Apache::loncommon::js_ready($body);
my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
my $display=&mt('Draw Molecule');
if (defined($shown_text)) { $display=&mt($shown_text); }
my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
my $function =
'LONCAPA_draw_molecule_'.&Apache::lonhtmlcommon::get_uniq_name();
my $result=<<CHEMINPUT;
<script type="text/javascript">
function $function() {
editor=window.open($nothing,'jmeedit','width=500,height=500,menubar=no,scrollbars=no,resizable=yes');
editor.$docopen;
editor.document.write('$start_page $body $end_page');
editor.document.close();
editor.focus();
}
</script>
CHEMINPUT
if ($shown_text eq '') {
$result .=<<PENCIL;
<a href="javascript:$function();void(0);"><img class="stift" src='$iconpath/stift.gif' alt='$display' title='$display' /></a>
PENCIL
} else {
$result .= '<input type="button" value="'.&mt($shown_text).'" onclick="javascript:'.$function.'();void(0);" />';
}
return $result;
}
sub jme_img {
my ($jme,$smile,$width,$options)=@_;
my $id=&Apache::loncommon::get_cgi_id();
my $result='<img alt="'.$smile.'" src="/cgi-bin/convertjme.pl?'.$id.'"';
if ($options =~ /border/) { $result.= ' border="1"'; }
$result.=' />';
&Apache::lonnet::appenv({'cgi.'.$id.'.JME' =>
&escape($jme),
'cgi.'.$id.'.PNG' => 1,
'cgi.'.$id.'.WIDTH' => $width});
return $result;
}
sub start_organicresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $partid = $Apache::inputtags::part;
my $id = &Apache::response::start_response($parstack,$safeeval);
if ($target eq 'meta') {
$result=&Apache::response::meta_package_write('organicresponse');
} elsif ($target eq 'web') {
my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
$safeeval);
if (&Apache::response::show_answer()) {
my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
$safeeval);
if ($jmeanswer ne '') {
my $options=&Apache::lonxml::get_param('options',$parstack,
$safeeval);
my $width=&Apache::lonxml::get_param('width',$parstack,
$safeeval);
my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
$safeeval);
$result.=&jme_img($jmeanswer,$answers[0],$width,$options);
}
} else {
$result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
}
} elsif ($target eq 'edit') {
$result .=&Apache::edit::tag_start($target,$token);
my $options=&Apache::lonxml::get_param('options',$parstack,
$safeeval);
if ($options !~ /multipart/) { $options.=',multipart'; }
$result .='<span class="LC_nobreak">'.
&Apache::edit::text_arg('Starting Molecule:','molecule',
$token,40);
my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
$safeeval);
$result .=&separate_jme_window(undef,
&Apache::edit::html_element_name('molecule'),
$molecule,$options);
$result .='</span><br /><span class="LC_nobreak">';
$result .=&Apache::edit::text_arg('Correct Answer:','answer',
$token,40);
$result .='</span><br /><span class="LC_nobreak">';
$result .=&Apache::edit::text_arg('JME string of the answer - automatically updated by "Insert Answer" in the JME pop-up (click pencil):',
'jmeanswer',$token);
my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
$safeeval);
$result .=&separate_jme_window(
&Apache::edit::html_element_name('answer'),
&Apache::edit::html_element_name('jmeanswer'),
$jmeanswer,$options);
$result .='</span><br />';
$result .=&Apache::edit::checked_arg('Options:','options',
[ ['autoez','Auto E,Z stereochemistry'],
['multipart','Multipart Structures'],
['nostereo','No stereochemistry'],
['reaction','Is a reaction'],
['number','Able to number atoms'] ],
,$token);
$result .=&Apache::edit::text_arg('Width of correct answer image:',
'width',$token,10);
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'molecule',
'answer','jmeanswer',
'options','width');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
sub end_organicresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $partid = $Apache::inputtags::part;
my $id = $Apache::inputtags::response['-1'];
if ($target eq 'grade'
&& &Apache::response::submitted()
&& $Apache::lonhomework::type eq 'exam') {
&Apache::response::scored_response($partid,$id);
} elsif ($target eq 'grade'
&& &Apache::response::submitted()
&& $Apache::lonhomework::type ne 'exam') {
&Apache::response::setup_params($$tagstack[-1],$safeeval);
my $response = &Apache::response::getresponse();
if ( $response =~ /[^\s]/) {
my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
my %previous = &Apache::response::check_for_previous($response,$partid,$id);
$Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
my $ad;
foreach my $answer (@answers) {
&Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
if ($response eq $answer) {
$ad='EXACT_ANS';
last;
} else {
$ad='INCORRECT';
}
}
if ($ad) {
if ($Apache::lonhomework::type eq 'survey') {
$ad='SUBMITTED';
} elsif ($Apache::lonhomework::type eq 'surveycred') {
$ad='SUBMITTED_CREDIT';
} elsif ($Apache::lonhomework::type eq 'anonsurvey') {
$ad='ANONYMOUS';
} elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
$ad='ANONYMOUS_CREDIT';
}
}
&Apache::response::handle_previous(\%previous,$ad);
$Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
$Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$env{"form.MOLECULE_$id"};
}
} elsif ($target eq "edit") {
$result.= &Apache::edit::tag_end($target,$token,'');
} elsif ($target eq 'answer') {
my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
$safeeval);
$result.=&Apache::response::answer_header('organicresponse');
foreach my $answer (@answers) {
$result.=&Apache::response::answer_part('organicresponse',$answer);
}
$result.=&Apache::response::answer_footer('organicresponse');
}
if ($target eq 'web') {
&Apache::response::setup_prior_tries_hash(\&format_prior_answer_organic,
['molecule'])
}
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
$target eq 'tex' || $target eq 'analyze') {
&Apache::lonxml::increment_counter(&Apache::response::repetition(),
"$partid.$id"); # part.response
if ($target eq 'analyze') {
$Apache::lonhomework::analyze{"$partid.$id.type"} = 'organicresponse';
push (@{ $Apache::lonhomework::analyze{"parts"} },"$partid.$id");
&Apache::lonhomework::set_bubble_lines();
}
}
if ($target eq 'web' ) {
my ($showpencil,$shown_text);
if ($Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
$showpencil = 1;
} elsif (&Apache::response::show_answer()) {
my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack, $safeeval);
if ($jmeanswer eq '') {
$showpencil = 1;
$shown_text="Show Your Last Answer";
}
}
if ($showpencil) {
my $options=&Apache::lonxml::get_param('options',$parstack,
$safeeval);
my $molecule;
if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
$molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
} else {
$molecule=&Apache::lonxml::get_param('molecule',$parstack,
$safeeval);
}
$result.=&separate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,
$options,$shown_text);
}
}
&Apache::response::end_response();
return $result;
}
sub format_prior_answer_organic {
my ($mode,$answer,$other_data) = @_;
my $result=&mt('Smile representation: "[_1]"','<tt>'.$answer.'</tt>');
my $jme=$other_data->[0];
$result.=&jme_img($jme,$answer,400);
return $result;
}
sub start_organicstructure {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'web') {
my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
my $id=&Apache::loncommon::get_cgi_id();
$result="<img src='/cgi-bin/convertjme.pl?$id'";
if ($options =~ /border/) { $result.= ' border="1"'; }
$result.=' />';
&Apache::lonnet::appenv(
{'cgi.'.$id.'.JME' => &escape($molecule),
'cgi.'.$id.'.PNG' => 1,
'cgi.'.$id.'.WIDTH' => $width});
} elsif ($target eq 'tex') {
my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1);
my $webwidth=&Apache::lonxml::get_param('width', $parstack, $safeeval);
my $webheight=&Apache::lonxml::get_param('height', $parstack, $safeeval);
if (!$webheight) { $webheight = $webwidth; }
if (!$texwidth) { $texwidth='90'; }
$result = "%DYNAMICIMAGE:$webwidth:$webheight:$texwidth\n";
my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
'_'.time.'_'.$$.int(rand(1000)).'_organicstructure';
my $id=$filename;
&Apache::lonnet::appenv(
{'cgi.'.$id.'.JME' => &escape($molecule),
'cgi.'.$id.'.PS' => 1,
'cgi.'.$id.'.WIDTH' => $texwidth});
$id=&escape($id);
&Apache::lonxml::register_ssi("/cgi-bin/convertjme.pl?$id");
if ($options =~ /border/) { $result.= '\fbox{'; }
$result .= '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$texwidth.' mm]{'.$filename.'.eps}';
if ($options =~ /border/) { $result.= '} '; }
} elsif ($target eq 'edit') {
$result .=&Apache::edit::tag_start($target,$token);
$result .=&Apache::edit::text_arg('Width (pixels):','width',$token,5);
$result .=&Apache::edit::text_arg('TeXwidth (mm):','texwidth',$token,5);
$result .='<span class="LC_nobreak">';
$result .=&Apache::edit::text_arg('Molecule:','molecule',$token,40);
my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
$safeeval);
my $options=&Apache::lonxml::get_param('options',$parstack,
$safeeval);
if ($options !~ /reaction/) {
$options.= ',multipart,number';
}
$result .=&separate_jme_window(undef,
&Apache::edit::html_element_name('molecule'),
$molecule,$options);
$result.="</span><br />";
$result .=&Apache::edit::checked_arg('Options:','options',
[ ['reaction','Is a reaction'],
['border','Draw a border'] ],
$token);
$result .=&Apache::edit::end_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'molecule',
'width','texwidth',
'options');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
sub end_organicstructure {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq "edit") {
$result.= &Apache::edit::tag_end($target,$token,'');
}
return $result;
}
sub edit_reaction_button {
my ($id,$field,$reaction)=@_;
my $id_es=&escape($id);
my $field_es=&escape($field);
my $reaction_es=&escape($reaction);
my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
my $display=&mt('Edit Answer');
my $start_page =
&Apache::loncommon::start_page('LON-CAPA Reaction Editor',undef,
{'frameset' => 1,
'js_ready' => 1,
'add_entries' => {
'rows' => "30%,*",
'border' => "0",}},);
my $end_page =
&Apache::loncommon::end_page({'frameset' => 1,
'js_ready' => 1});
my $result=<<EDITREACTION;
<script type="text/javascript">
// <!--
function create_reaction_window_${id}_${field} () {
editor=window.open('','','width=500,height=270,scrollbars=no,resizable=yes');
editor.$docopen;
editor.document.writeln('$start_page <frame src="/res/adm/pages/reactionresponse/reaction_viewer.html?inhibitmenu=yes" name="viewer" scrolling="no" /> <frame src="/res/adm/pages/reactionresponse/reaction_editor.html?inhibitmenu=yes&reaction=$reaction_es&id=$id_es&field=$field_es" name="editor" scrolling="no" /> $end_page');
editor.document.close();
}
// -->
</script>
<a href="javascript:create_reaction_window_${id}_${field}();void(0);"><img class="stift" src='$iconpath/stift.gif' alt='$display' title='$display' /></a>
EDITREACTION
return $result;
}
sub start_reactionresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $id = &Apache::response::start_response($parstack,$safeeval);
if ($target eq 'meta') {
$result=&Apache::response::meta_package_write('reactionresponse');
} elsif ($target eq 'web') {
my $partid = $Apache::inputtags::part;
my $id = $Apache::inputtags::response['-1'];
if ( &Apache::response::show_answer() ) {
my $ans=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
if (!$Apache::lonxml::default_homework_loaded) {
&Apache::lonxml::default_homework_load($safeeval);
}
@Apache::scripttag::parser_env = @_;
$Apache::inputtags::answertxt{$id}=[&Apache::run::run("return &chemparse(q\0$ans\0);",$safeeval)];
}
} elsif ($target eq "edit") {
$result .=&Apache::edit::tag_start($target,$token);
my $answer=&Apache::lonxml::get_param('answer',$parstack,
$safeeval);
$result .='<span class="LC_nobreak">'.
&Apache::edit::text_arg('Answer:','answer',$token,40);
$result .=&edit_reaction_button($id,&Apache::edit::html_element_name('answer'),$answer).'</span>';
my $initial=&Apache::lonxml::get_param('initial',$parstack,$safeeval);
$result.='<span class="LC_nobreak">'.
&Apache::edit::text_arg('Initial Reaction:','initial',$token,40);
$result .=&edit_reaction_button($id,&Apache::edit::html_element_name('initial'),$initial).'</span>';
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'answer',
'initial');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
sub end_reactionresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $partid = $Apache::inputtags::part;
my $id = $Apache::inputtags::response['-1'];
if ($target eq 'grade'
&& &Apache::response::submitted()
&& $Apache::lonhomework::type eq 'exam') {
&Apache::response::scored_response($partid,$id);
} elsif ($target eq 'grade'
&& &Apache::response::submitted()
&& $Apache::lonhomework::type ne 'exam') {
&Apache::response::setup_params($$tagstack[-1],$safeeval);
my $response = &Apache::response::getresponse();
if ( $response =~ /[^\s]/) {
my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
my %previous = &Apache::response::check_for_previous($response,$partid,$id);
$Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
my $ad;
foreach my $answer (@answers) {
&Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
if (&chem_standard_order($response) eq
&chem_standard_order($answer)) {
$ad='EXACT_ANS';
} else {
$ad='INCORRECT';
}
}
if ($ad) {
if ($Apache::lonhomework::type eq 'survey') {
$ad='SUBMITTED';
} elsif ($ad && $Apache::lonhomework::type eq 'surveycred') {
$ad='SUBMITTED_CREDIT';
} elsif ($ad && $Apache::lonhomework::type eq 'anonsurvey') {
$ad='ANONYMOUS';
} elsif ($ad && $Apache::lonhomework::type eq 'anonsurveycred') {
$ad='ANONYMOUS_CREDIT';
}
}
&Apache::response::handle_previous(\%previous,$ad);
$Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
}
} elsif ($target eq "edit") {
$result.= &Apache::edit::tag_end($target,$token,'');
} elsif ($target eq 'answer') {
my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
$safeeval);
$result.=&Apache::response::answer_header('reactionresponse');
foreach my $answer (@answers) {
$result.=&Apache::response::answer_part('reactionresponse',
$answer);
}
$result.=&Apache::response::answer_footer('reactionresponse');
}
if ($target eq 'web') {
&Apache::response::setup_prior_tries_hash(\&format_prior_response_reaction);
}
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
$target eq 'tex' || $target eq 'analyze') {
&Apache::lonxml::increment_counter(&Apache::response::repetition(), "$partid.$id");
if ($target eq 'analyze') {
$Apache::lonhomework::analyze{"$partid.$id.type"} = 'reactionresponse';
push (@{ $Apache::lonhomework::analyze{"parts"} },"$partid.$id");
&Apache::lonhomework::set_bubble_lines();
}
}
my $status=$Apache::inputtags::status['-1'];
if (($target eq 'web') && ($Apache::lonhomework::type ne 'exam') && ($status eq 'CAN_ANSWER')) {
my $reaction=$Apache::lonhomework::history{"resource.$partid.$id.submission"};
if ($reaction eq '') { $reaction=&Apache::lonxml::get_param('initial',$parstack,$safeeval); }
$result.=&edit_reaction_button($id,"HWVAL_$id",$reaction);
}
&Apache::response::end_response();
return $result;
}
sub format_prior_response_reaction {
my ($mode,$answer) =@_;
return '<span class="LC_prior_reaction">'.
&HTML::Entities::encode($answer,'"<>&').'</span>';
}
sub start_chem {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result = '';
my $inside = &Apache::lonxml::get_all_text_unbalanced("/chem",$parser);
if ($target eq 'tex' || $target eq 'web') {
$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
if (!$Apache::lonxml::default_homework_loaded) {
&Apache::lonxml::default_homework_load($safeeval);
}
@Apache::scripttag::parser_env = @_;
$result=&Apache::run::run("return &chemparse(q\0$inside\0);",$safeeval);
}
return $result;
}
sub end_chem {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $result = '';
return $result;
}
1;
__END__
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