Annotation of loncom/homework/chemresponse.pm, revision 1.100

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # chemical equation style response
                      3: #
1.100   ! raeburn     4: # $Id: chemresponse.pm,v 1.99 2017/01/04 20:09:08 damieng Exp $
1.1       albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: #
                     29: package Apache::chemresponse;
                     30: use strict;
                     31: use Apache::lonxml;
                     32: use Apache::lonnet;
1.55      albertel   33: use Apache::lonlocal;
1.66      www        34: use lib '/home/httpd/lib/perl/';
                     35: use LONCAPA;
                     36:  
1.1       albertel   37: 
                     38: BEGIN {
1.46      albertel   39:     &Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse','chem'));
1.1       albertel   40: }
                     41: 
1.34      albertel   42: sub chem_standard_order {
                     43:     my ($reaction) = @_;
                     44:     my ($re,$pr) = split(/->|<=>/,$reaction);
                     45:     my @reactants = split(/\s\+/,$re);
                     46:     my @products =  split(/\s\+/,$pr);
                     47:     foreach my $substance (@reactants,@products) {
                     48: 	$substance =~ s/(\^\d*)\s+/$1_/g;         # protect superscript space
                     49: 	$substance =~ s/\s*//g;                   # strip whitespace
                     50: 	$substance =~ s/_/ /g;                    # restore superscript space
                     51:     }
                     52:     @reactants = sort @reactants;
                     53:     @products = sort @products;
                     54:     my $standard = '';
                     55:     foreach my $substance (@reactants) {
                     56: 	$standard .= $substance;
                     57: 	$standard .= ' + ';
                     58:     }
                     59:     $standard =~ s/ \+ $//;              # get rid of trailing plus sign
                     60:     $standard .= ' -> ';
                     61:     foreach my $substance (@products) {
                     62: 	$standard .= $substance;
                     63: 	$standard .= ' + ';
                     64:     }
                     65:     $standard =~ s/ \+ $//;              # get rid of trailing plus sign
                     66:     return $standard;
                     67: }
                     68: 
1.30      www        69: sub separate_jme_window {
1.55      albertel   70:     my ($smile_input,$jme_input,$molecule,$options,$shown_text)=@_;
1.94      raeburn    71:     my $usejsme = 1;
1.95      raeburn    72:     if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
                     73:         if (exists($env{'course.'.$env{'request.course.id'}.'.usejsme'})) {
                     74:             if ($env{'course.'.$env{'request.course.id'}.'.usejsme'} eq '0') {
                     75:                 $usejsme = 0;
                     76:             }
                     77:         } else {
                     78:             my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
                     79:             if ($domdefs{'usejsme'} eq '0') {
                     80:                 $usejsme = 0;
                     81:             }
                     82:         }
                     83:     } else {
                     84:         my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
                     85:         if ($domdefs{'usejsme'} eq '0') {
                     86:             $usejsme = 0;
                     87:         }
                     88:     }
                     89:     if ($usejsme) {
1.96      raeburn    90:         if ($env{'browser.type'} eq 'safari') {
                     91:             unless ($env{'browser.mobile'}) {
1.97      raeburn    92:                 if ($env{'browser.version'} < 534) {
1.96      raeburn    93:                     $usejsme = 0;
                     94:                 }
                     95:             }
                     96:         } elsif ($env{'browser.type'} eq 'mozilla') {
                     97:             if ($env{'browser.version'} < 5) {
                     98:                 $usejsme = 0;
                     99:             } elsif ($env{'browser.info'} =~ /^firefox\-([\d\.]+)/) {
                    100:                 my $firefox = $1;
                    101:                 if ($firefox < 12) {
                    102:                     $usejsme = 0;
                    103:                 }
                    104:             }
                    105:         } elsif ($env{'browser.type'} eq 'explorer') {
                    106:             if ($env{'browser.version'} < 7) {
                    107:                 $usejsme = 0;
                    108:             }
                    109:         } elsif ($env{'browser.type'} eq 'opera') {
                    110:             if ($env{'browser.version'} < 15) {
1.95      raeburn   111:                 $usejsme = 0;
                    112:             }
                    113:         }
                    114:     } else {
                    115:         if ($env{'browser.mobile'}) {
                    116:             $usejsme = 1;
                    117:         }
                    118:     }
1.94      raeburn   119:     my $linkstyle = 'display:none';
                    120:     my $creditstyle = 'display:inline';
                    121:     if ($env{'browser.type'} eq 'explorer') {
                    122:         if (($env{'browser.os'} eq 'win') && ($env{'browser.version'} < 9)) {
                    123:             $linkstyle = 'display:inline';
                    124:             $creditstyle = 'display:none';
                    125:         }
                    126:     }
1.2       albertel  127:     my $smilesection;
                    128:     if (defined($smile_input)) {
1.94      raeburn   129:         my $smiles;
                    130:         if ($usejsme) {
                    131:             $smiles = 'document.JME.smiles()'; 
                    132:         } else {
                    133:             $smiles = 'document.applets.JME.smiles()';
                    134:         }
1.2       albertel  135: 	$smilesection=<<SMILESECTION;
1.94      raeburn   136: 	opener.document.lonhomework.$smile_input.value = $smiles;
1.2       albertel  137: SMILESECTION
                    138:     }
                    139:     my $jmesection;
1.94      raeburn   140:     my $jmefile;
1.2       albertel  141:     if (defined($jme_input)) {
1.94      raeburn   142:         if ($usejsme) {
                    143:             $jmefile = 'document.JME.jmeFile()';
                    144:         } else {
                    145:             $jmefile = 'document.applets.JME.jmeFile()';
                    146:         }
1.2       albertel  147: 	$jmesection=<<JMESECTION;
1.94      raeburn   148: 	opener.document.lonhomework.$jme_input.value = $jmefile;
1.2       albertel  149: JMESECTION
                    150:     }
                    151: 
1.94      raeburn   152:     if ($molecule) {
                    153:         if ($usejsme) {
                    154:             $molecule = 'document.JME.readMolecule("'.$molecule.'")';
                    155:         } else {
                    156:             $molecule='<param name="jme" value="'.$molecule.'" />';
                    157:         }
                    158:     }
1.57      albertel  159:     my $insert_answer;
1.59      albertel  160:     if ($shown_text eq '') { 
1.57      albertel  161: 	$insert_answer=
1.94      raeburn   162: 	    '<input type="button" name="submit" value="'.&mt('Insert Answer').'" onclick="javascript:submitSmiles();" /><br />';
                    163:     }
                    164: 
                    165:    
                    166: 
                    167:     my ($jsme_js,$js,$buttonstyle,$viewportjs,$resizejs);
                    168:     if ($usejsme) {
                    169:         $buttonstyle = 'display:none';
                    170:         $resizejs =<<RESIZEJS;
                    171: <script type="text/javascript">
                    172: function callResize() {
                    173:     var timer;
                    174:     clearTimeout(timer);
                    175:     timer=setTimeout('resize_jsme()',100);
                    176: }
                    177: 
                    178: window.onresize = callResize;
                    179: 
                    180: function resize_jsme() {
                    181:     init_geometry();
                    182:     var vph = Geometry.getViewportHeight();
                    183:     var vpw = Geometry.getViewportWidth();
                    184:     var lowerdivheight = document.getElementById('JMEbuttons').offsetHeight;
                    185:     var formheight = document.getElementById('JMEform').offsetHeight;
                    186:     var freevspace = vph-(lowerdivheight+50);
                    187:     var freehspace = vpw-20;
                    188:     if (typeof jsmeApplet !== 'undefined') {
                    189:         jsmeApplet.setSize(freehspace,freevspace);
                    190:     }
                    191: }
                    192: </script>
                    193: RESIZEJS
                    194:         $resizejs = &Apache::loncommon::js_ready($resizejs);
                    195:         $jsme_js = '
                    196: <script type="text/javascript" language="javascript" src="/adm/jsme/jsme.nocache.js"></script>'."\n";
                    197:         $js =<<CHEMJS;
                    198: <script type="text/javascript">
                    199: function jsmeOnLoad() {
                    200:     document.getElementById('JMErefresh').style.display="none";
                    201:     document.getElementById('JMEcredits').style.display="inline";
1.100   ! raeburn   202:     jsmeApplet = new JSApplet.JSME("jme", "420px", "330px", {"options" : "$options"});
1.94      raeburn   203:     document.JME = jsmeApplet;
                    204:     $molecule;
                    205:     document.getElementById('JMEbuttons').style.display="block";
                    206:     callResize();
                    207: }
                    208: 
                    209: function submitSmiles() {
                    210:     jmeFile = document.JME.jmeFile();
                    211:     if (jmeFile == "") {
                    212:         alert("Nothing to submit");
                    213:     } else {
                    214:         $jmesection
                    215:         $smilesection
                    216:         window.close();
1.57      albertel  217:     }
1.94      raeburn   218: }
                    219: function openHelpWindow() {
                    220:     window.open("http://peter-ertl.com/jsme/2013_03/help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
                    221: }
                    222: 
                    223: </script>
                    224: 
                    225: CHEMJS
1.57      albertel  226: 
1.94      raeburn   227:         $viewportjs = &Apache::loncommon::viewport_geometry_js();
                    228:         $viewportjs = '<script type="text/javascript">'."\n".
                    229:                       $viewportjs."\n".
                    230:                       '</script>';
                    231: 
                    232:     } else {
                    233:         $buttonstyle = 'display:block';
                    234:         $js =<<CHEMJS; 
1.47      albertel  235: <script type="text/javascript">
1.1       albertel  236: function submitSmiles() {
1.21      albertel  237:     jmeFile = document.applets.JME.jmeFile();
                    238:     if (jmeFile == "") {
1.1       albertel  239: 	alert("Nothing to submit");
                    240:     } else {
1.21      albertel  241:         $jmesection
1.2       albertel  242:         $smilesection
1.1       albertel  243: 	window.close();
                    244:     }
                    245: }
                    246: function openHelpWindow() {
1.2       albertel  247:     window.open("/adm/jme/jme_help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
1.1       albertel  248: }
1.60      albertel  249: function substituent(r) {document.applets.JME.setSubstituent(r);}
1.1       albertel  250: </script>
1.65      albertel  251: CHEMJS
1.94      raeburn   252:     }
1.65      albertel  253: 
                    254:     my $start_page = 
1.94      raeburn   255:         &Apache::loncommon::start_page('Molecule Editor',$viewportjs,
1.65      albertel  256: 				       {'only_body' => 1,
1.69      albertel  257: 					'js_ready'  => 1,
1.65      albertel  258: 					'bgcolor'   => '#FFFFFF',});
1.69      albertel  259:     my $end_page =
                    260:  	&Apache::loncommon::end_page({'js_ready' => 1,});
1.88      www       261:     my $java_not_enabled=&Apache::lonhtmlcommon::java_not_enabled();
1.93      bisitz    262:     my %lt = &Apache::lonlocal::texthash(
                    263:         'seltext' => 'Select substituent...',
                    264:         'close'   => 'Close',
                    265:         'help'    => 'Help',
                    266:        );
1.94      raeburn   267:     my $body = "
                    268: $jsme_js
                    269: $js".'
1.1       albertel  270: <center>
1.94      raeburn   271: <form action="" id="JMEform">
                    272: ';
                    273:     if ($usejsme) {
                    274:         $body.= <<"ENDCHEM";
                    275: <div id="jme">
                    276: <div id="JMEcredits" style="$creditstyle">
                    277: <span style="font-size:small; font-family:arial,sans-serif;"><a href="http://peter-ertl.com/jsme/">JSME Molecular Editor</a> courtesy of Peter Ertl (Novartis) and Bruno Bienfait</span></div>
                    278: </div>
                    279: ENDCHEM
                    280:     } else {
                    281:         $body.=<<CHEMPAGE;
1.60      albertel  282:   <table width="440"><tr>
                    283:     <td></td>
                    284:     <td align="right">
                    285:       <select onchange="javascript:substituent(options[selectedIndex].text)">
1.93      bisitz    286:         <option>$lt{'seltext'}</option>
1.60      albertel  287:         <option>-C(=O)OH</option>
                    288:         <option>-C(=O)OMe</option>
                    289:         <option>-OC(=O)Me</option>
                    290:         <option>-CMe3</option>
                    291:         <option>-CF3</option>
                    292:         <option>-CCl3</option>
                    293:         <option>-NO2</option>
                    294:         <option>-SO2-NH2</option>
                    295:         <option>-NH-SO2-Me</option>
                    296:         <option>-NMe2</option>
                    297:         <option>-C#N</option>
                    298:         <option>-C#C-Me</option>
                    299:         <option>-C#CH</option>
                    300:       </select>
                    301:     </td></tr>
                    302:   </table>
                    303: <applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="440" height="390" mayscript>
1.88      www       304: $java_not_enabled
1.12      albertel  305: $molecule
1.6       albertel  306: <param name="options" value="$options" />
1.94      raeburn   307: </applet>
                    308: <br />
1.49      albertel  309: <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>
1.94      raeburn   310: CHEMPAGE
                    311:     }
                    312:     $body .= <<CHEMPAGE;
                    313: <div id="JMEbuttons" style="$buttonstyle">
1.57      albertel  314: $insert_answer
1.93      bisitz    315: <input type="button" value="$lt{'close'}" onclick="javascript:window.close()" />
1.1       albertel  316: &nbsp;&nbsp;
1.93      bisitz    317: <input type="button" value="$lt{'help'}" onclick="javascript:openHelpWindow()" />
1.94      raeburn   318: </div>
                    319: <div id="JMErefresh" style="$linkstyle">
                    320: <a href="javascript:location.reload();">Display Molecule Editor</a>
                    321: </div> 
1.1       albertel  322: </form>
                    323: </center>
                    324: CHEMPAGE
1.65      albertel  325: 
1.69      albertel  326:     $body=&Apache::loncommon::js_ready($body);
1.53      albertel  327:     my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
1.41      www       328:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
1.55      albertel  329:     my $display=&mt('Draw Molecule');
                    330:     if (defined($shown_text)) { $display=&mt($shown_text); }
1.79      riegler   331:     my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
1.94      raeburn   332:     my $function =
1.91      raeburn   333: 	'LONCAPA_draw_molecule_'.&get_uniq_name();
1.1       albertel  334:     my $result=<<CHEMINPUT;
1.69      albertel  335: <script type="text/javascript">
                    336:     function $function() {
                    337: 	editor=window.open($nothing,'jmeedit','width=500,height=500,menubar=no,scrollbars=no,resizable=yes');
1.94      raeburn   338:         if (editor) {
                    339: 	    editor.$docopen;
                    340: 	    editor.document.write('$start_page $body $resizejs $end_page');
                    341: 	    editor.document.close();
                    342: 	    editor.focus();
                    343:         }
1.69      albertel  344:     }
                    345: </script>
1.86      raeburn   346: CHEMINPUT
1.94      raeburn   347:     my $jscall = "javascript:$function();void(0);";
1.86      raeburn   348:     if ($shown_text eq '') {
1.94      raeburn   349:         $result .=<<PENCIL;
                    350: <a href="$jscall"><img class="stift" src="$iconpath/stift.gif" alt="$display" title="$display" /></a>
1.86      raeburn   351: PENCIL
                    352:     } else {
1.94      raeburn   353:         $result .= '<input type="button" value="'.&mt($shown_text).'" onclick="$jscall" />';
1.86      raeburn   354:     }
1.1       albertel  355:     return $result;
                    356: }
1.56      albertel  357: sub jme_img {
                    358:     my ($jme,$smile,$width,$options)=@_;
                    359:     my $id=&Apache::loncommon::get_cgi_id();
                    360:     my $result='<img alt="'.$smile.'" src="/cgi-bin/convertjme.pl?'.$id.'"';
                    361:     if ($options =~ /border/) { $result.= ' border="1"'; }
                    362:     $result.=' />';
1.78      raeburn   363:     &Apache::lonnet::appenv({'cgi.'.$id.'.JME'   =>
                    364: 			     &escape($jme),
                    365: 			     'cgi.'.$id.'.PNG'   => 1,
                    366: 			     'cgi.'.$id.'.WIDTH' => $width});
1.56      albertel  367:     return $result;
                    368: }
                    369: 
1.6       albertel  370: sub start_organicresponse {
1.1       albertel  371:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    372:     my $result;
                    373:     my $partid = $Apache::inputtags::part;
                    374:     my $id = &Apache::response::start_response($parstack,$safeeval);
                    375:     if ($target eq 'meta') {
1.28      albertel  376: 	$result=&Apache::response::meta_package_write('organicresponse');
1.1       albertel  377:     } elsif ($target eq 'web') {
1.55      albertel  378: 	my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
                    379: 						 $safeeval);
1.86      raeburn   380: 	if (&Apache::response::show_answer()) {
                    381:             my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
                    382:                                                      $safeeval);
                    383:             if ($jmeanswer ne '') {
                    384: 	        my $options=&Apache::lonxml::get_param('options',$parstack,
                    385: 	    					       $safeeval);
                    386: 	        my $width=&Apache::lonxml::get_param('width',$parstack,
                    387: 						     $safeeval);
                    388: 	        my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                    389: 							     $safeeval);
                    390: 	        $result.=&jme_img($jmeanswer,$answers[0],$width,$options);
                    391:             }
1.1       albertel  392: 	} else {
1.44      albertel  393: 	    $result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
1.1       albertel  394: 	}
1.2       albertel  395:     } elsif ($target eq 'edit') {
                    396: 	$result .=&Apache::edit::tag_start($target,$token);
1.12      albertel  397: 	my $options=&Apache::lonxml::get_param('options',$parstack,
                    398: 					       $safeeval);
                    399: 	if ($options !~ /multipart/) { $options.=',multipart'; }
1.83      bisitz    400: 	$result .='<span class="LC_nobreak">'.
1.7       albertel  401: 	    &Apache::edit::text_arg('Starting Molecule:','molecule',
                    402: 				    $token,40);
1.2       albertel  403: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
                    404: 						$safeeval);
1.30      www       405: 	$result .=&separate_jme_window(undef,
1.2       albertel  406: 		      &Apache::edit::html_element_name('molecule'),
1.12      albertel  407: 		      $molecule,$options);
1.83      bisitz    408: 	$result .='</span><br /><span class="LC_nobreak">';
1.2       albertel  409: 	$result .=&Apache::edit::text_arg('Correct Answer:','answer',
                    410: 					  $token,40);
1.85      raeburn   411: 	$result .='</span><br /><span class="LC_nobreak">';
1.86      raeburn   412: 	$result .=&Apache::edit::text_arg('JME string of the answer - automatically updated by "Insert Answer" in the JME pop-up (click pencil):',
1.67      albertel  413: 					  'jmeanswer',$token);
1.2       albertel  414: 	my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
                    415: 						 $safeeval);
1.30      www       416: 	$result .=&separate_jme_window(
1.2       albertel  417:                       &Apache::edit::html_element_name('answer'),
                    418:                       &Apache::edit::html_element_name('jmeanswer'),
1.12      albertel  419: 		      $jmeanswer,$options);
1.83      bisitz    420: 	$result .='</span><br />';
1.12      albertel  421: 	$result .=&Apache::edit::checked_arg('Options:','options',
1.29      www       422: 				    [ ['autoez','Auto E,Z stereochemistry'],
1.18      albertel  423: 				      ['multipart','Multipart Structures'],
1.12      albertel  424: 				      ['nostereo','No stereochemistry'],
                    425: 				      ['reaction','Is a reaction'],
1.18      albertel  426: 				      ['number','Able to number atoms'] ],
1.12      albertel  427: 					     ,$token);
1.44      albertel  428: 	$result .=&Apache::edit::text_arg('Width of correct answer image:',
                    429: 					  'width',$token,10);
1.2       albertel  430: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    431:     } elsif ($target eq 'modified') {
                    432: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    433: 						     $safeeval,'molecule',
1.6       albertel  434: 						     'answer','jmeanswer',
1.44      albertel  435: 						     'options','width');
1.2       albertel  436: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.1       albertel  437:     }
1.63      albertel  438: 
1.1       albertel  439:     return $result;
                    440: }
                    441: 
1.6       albertel  442: sub end_organicresponse {
1.1       albertel  443:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    444:     my $result;
1.64      albertel  445: 
                    446:     my $partid = $Apache::inputtags::part;
                    447:     my $id = $Apache::inputtags::response['-1'];
                    448: 
                    449:     if ($target eq 'grade' 
                    450: 	&& &Apache::response::submitted()
                    451: 	&& $Apache::lonhomework::type eq 'exam') {
                    452: 
                    453: 	&Apache::response::scored_response($partid,$id);
                    454: 
                    455:     } elsif ($target eq 'grade' 
                    456: 	&& &Apache::response::submitted()
                    457: 	&& $Apache::lonhomework::type ne 'exam') {
                    458: 
1.31      albertel  459: 	&Apache::response::setup_params($$tagstack[-1],$safeeval);
1.1       albertel  460: 	my $response = &Apache::response::getresponse();
                    461: 	if ( $response =~ /[^\s]/) {
1.13      albertel  462: 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
1.1       albertel  463: 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
                    464: 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
                    465: 	    my $ad;
1.13      albertel  466: 	    foreach my $answer (@answers) {
                    467: 		&Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
                    468: 		if ($response eq $answer) {
                    469: 		    $ad='EXACT_ANS';
                    470: 		    last;
                    471: 		} else {
                    472: 		    $ad='INCORRECT';
                    473: 		}
1.1       albertel  474: 	    }
1.87      raeburn   475:             if ($ad) {
                    476: 	        if ($Apache::lonhomework::type eq 'survey') {
                    477: 		    $ad='SUBMITTED';
                    478:                 } elsif ($Apache::lonhomework::type eq 'surveycred') {
                    479:                     $ad='SUBMITTED_CREDIT';
                    480:                 } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
                    481:                     $ad='ANONYMOUS';
                    482:                 } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
                    483:                     $ad='ANONYMOUS_CREDIT';
                    484:                 }
                    485:             }
1.1       albertel  486: 	    &Apache::response::handle_previous(\%previous,$ad);
                    487: 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
1.50      albertel  488: 	    $Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$env{"form.MOLECULE_$id"};
1.1       albertel  489: 	}
1.2       albertel  490:     } elsif ($target eq "edit") {
                    491: 	$result.= &Apache::edit::tag_end($target,$token,'');
1.15      albertel  492:     } elsif ($target eq 'answer') {
                    493: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                    494: 						     $safeeval);
                    495: 	$result.=&Apache::response::answer_header('organicresponse');
                    496: 	foreach my $answer (@answers) {
                    497: 	    $result.=&Apache::response::answer_part('organicresponse',$answer);
                    498: 	}
                    499: 	$result.=&Apache::response::answer_footer('organicresponse');
1.1       albertel  500:     }
1.73      albertel  501:     if ($target eq 'web') {
                    502: 	&Apache::response::setup_prior_tries_hash(\&format_prior_answer_organic,
                    503: 						  ['molecule'])
                    504:     }
1.63      albertel  505: 
                    506:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
                    507: 	$target eq 'tex' || $target eq 'analyze') {
1.90      raeburn   508:         my $repetition = &Apache::response::repetition();
                    509: 	&Apache::lonxml::increment_counter($repetition,"$partid.$id"); # part.response
1.74      foxr      510: 	if ($target eq 'analyze') {
1.76      raeburn   511:             $Apache::lonhomework::analyze{"$partid.$id.type"} = 'organicresponse';
1.84      raeburn   512:             push (@{ $Apache::lonhomework::analyze{"parts"} },"$partid.$id");
1.74      foxr      513: 	    &Apache::lonhomework::set_bubble_lines();
                    514: 	}
1.63      albertel  515:     }
1.86      raeburn   516:     if ($target eq 'web' ) {
                    517:         my ($showpencil,$shown_text);
                    518:         if ($Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
                    519:             $showpencil = 1;
                    520:         } elsif (&Apache::response::show_answer()) {
                    521:             my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,                                                         $safeeval);
                    522:             if ($jmeanswer eq '') {
                    523:                 $showpencil = 1;
                    524:                 $shown_text="Show Your Last Answer";
                    525:             }
                    526:         }
                    527:         if ($showpencil) {
1.79      riegler   528:             my $options=&Apache::lonxml::get_param('options',$parstack,
                    529:                                                    $safeeval);
1.86      raeburn   530: 
1.79      riegler   531: 	    my $molecule;
                    532: 	    if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
                    533: 		$molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
                    534: 	    } else {
                    535: 		$molecule=&Apache::lonxml::get_param('molecule',$parstack,
                    536: 						     $safeeval);
                    537: 	    }
1.86      raeburn   538: 	    $result.=&separate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,
                    539:                                           $options,$shown_text);
                    540:         }
1.79      riegler   541:     }
1.63      albertel  542:     &Apache::response::end_response();
1.1       albertel  543:     return $result;
                    544: }
                    545: 
1.73      albertel  546: sub format_prior_answer_organic {
                    547:     my ($mode,$answer,$other_data) = @_;
1.93      bisitz    548:     my $result=&mt('Smile representation: [_1]','"<tt>'.$answer.'</tt>"');
1.73      albertel  549:     my $jme=$other_data->[0];
                    550:     $result.=&jme_img($jme,$answer,400);
                    551:     return $result;
                    552: }
                    553: 
1.6       albertel  554: sub start_organicstructure {
1.3       albertel  555:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    556:     my $result;
                    557:     if ($target eq 'web') {
                    558: 	my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
                    559: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
1.12      albertel  560: 	my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
1.23      albertel  561: 	my $id=&Apache::loncommon::get_cgi_id();
1.19      albertel  562: 	$result="<img src='/cgi-bin/convertjme.pl?$id'";
                    563: 	if ($options =~ /border/) { $result.= ' border="1"'; }
                    564: 	$result.=' />';
1.16      albertel  565: 	&Apache::lonnet::appenv(
1.78      raeburn   566:             {'cgi.'.$id.'.JME'   => &escape($molecule),
                    567: 	     'cgi.'.$id.'.PNG' => 1,
                    568: 	     'cgi.'.$id.'.WIDTH' => $width});
1.17      albertel  569:     } elsif ($target eq 'tex') {
1.38      albertel  570: 	my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1);
1.58      foxr      571: 	my $webwidth=&Apache::lonxml::get_param('width', $parstack, $safeeval);
                    572: 	my $webheight=&Apache::lonxml::get_param('height', $parstack, $safeeval);
1.62      foxr      573: 	if (!$webheight) { $webheight = $webwidth; }
1.17      albertel  574: 	if (!$texwidth) { $texwidth='90'; }
1.58      foxr      575: 	$result = "%DYNAMICIMAGE:$webwidth:$webheight:$texwidth\n";
1.17      albertel  576: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
                    577: 	my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
1.50      albertel  578: 	my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
1.17      albertel  579: 	    '_'.time.'_'.$$.int(rand(1000)).'_organicstructure';
                    580: 	my $id=$filename;
                    581: 	&Apache::lonnet::appenv(
1.78      raeburn   582: 		     {'cgi.'.$id.'.JME'   => &escape($molecule),
                    583: 		      'cgi.'.$id.'.PS' => 1,
                    584: 		      'cgi.'.$id.'.WIDTH' => $texwidth});
1.66      www       585: 	$id=&escape($id);
1.17      albertel  586: 	&Apache::lonxml::register_ssi("/cgi-bin/convertjme.pl?$id");
1.20      albertel  587: 	if ($options =~ /border/) { $result.= '\fbox{'; }
1.89      foxr      588: 	$result .= '\graphicspath{{'.LONCAPA::tempdir().
                    589: 	    '}}\includegraphics[width='.$texwidth.' mm]{'.$filename.'.eps}';
1.20      albertel  590: 	if ($options =~ /border/) { $result.= '} '; }
1.3       albertel  591:     } elsif ($target eq 'edit') {
                    592: 	$result .=&Apache::edit::tag_start($target,$token);
1.22      albertel  593: 	$result .=&Apache::edit::text_arg('Width (pixels):','width',$token,5);
                    594: 	$result .=&Apache::edit::text_arg('TeXwidth (mm):','texwidth',$token,5);
1.83      bisitz    595: 	$result .='<span class="LC_nobreak">';
1.3       albertel  596: 	$result .=&Apache::edit::text_arg('Molecule:','molecule',$token,40);
                    597: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
                    598: 						$safeeval);
1.12      albertel  599: 	my $options=&Apache::lonxml::get_param('options',$parstack,
                    600: 					       $safeeval);
                    601: 	if ($options !~ /reaction/) {
                    602: 	    $options.= ',multipart,number';
                    603: 	}
                    604: 						   
1.30      www       605: 	$result .=&separate_jme_window(undef,
1.12      albertel  606: 				 &Apache::edit::html_element_name('molecule'),
                    607: 				       $molecule,$options);
1.83      bisitz    608: 	$result.="</span><br />";
1.12      albertel  609: 	$result .=&Apache::edit::checked_arg('Options:','options',
1.18      albertel  610: 					     [ ['reaction','Is a reaction'],
1.12      albertel  611: 					       ['border','Draw a border'] ],
                    612: 					     $token);
1.24      albertel  613: 	$result .=&Apache::edit::end_row();
1.3       albertel  614:     } elsif ($target eq 'modified') {
                    615: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    616: 						     $safeeval,'molecule',
1.22      albertel  617: 						     'width','texwidth',
                    618: 						     'options');
1.3       albertel  619: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    620:     }
                    621:     return $result;
1.1       albertel  622: }
                    623: 
1.6       albertel  624: sub end_organicstructure {
1.3       albertel  625:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    626:     my $result;
                    627:     if ($target eq "edit") {
                    628: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    629:     }
1.4       albertel  630:     return $result;
                    631: }
                    632: 
1.99      damieng   633: sub reaction_preview {
                    634:     my ($field, $reaction) = @_;
                    635:     
                    636:     # NOTE: $reaction should be encoded if the document was sent as XHTML
                    637:     $reaction =~ s/"//g;
                    638:     my $result=<<JS_PREVIEW;
                    639: <input type="button" value="Help" onclick = "window.open('/adm/reactionresponse/reaction_help.html','','scrollbars=yes,resizable=yes,width=550,height=600')" />
1.10      albertel  640: <script type="text/javascript">
1.99      damieng   641:     if (typeof reaction_preview_started === 'undefined') {
                    642:         var script = document.createElement('script');
                    643:         script.type = 'text/javascript';
                    644:         script.src = '/adm/reactionresponse/reaction_preview.js';
                    645:         document.body.appendChild(script);
                    646:         reaction_preview_started = true;
                    647:     }
                    648:     window.addEventListener('load', function(e) {
                    649:         var input = document.forms.lonhomework.$field;
                    650:         input.readonly = '';
                    651:         input.value = "$reaction";
                    652:         if (!input.id)
                    653:             input.id = "$field";
                    654:         var preview = new LC.HW.ReactionPreview(input.id);
                    655:         preview.start_preview();
                    656:     }, false);
1.10      albertel  657: </script>
1.99      damieng   658: JS_PREVIEW
1.9       albertel  659:     return $result;
                    660: }
                    661: 
1.4       albertel  662: sub start_reactionresponse {
                    663:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    664:     my $result;
                    665:     my $id = &Apache::response::start_response($parstack,$safeeval);
1.10      albertel  666:     if ($target eq 'meta') {
1.28      albertel  667: 	$result=&Apache::response::meta_package_write('reactionresponse');
1.10      albertel  668:     } elsif ($target eq 'web') {
1.11      albertel  669: 	my $partid = $Apache::inputtags::part;
                    670: 	my $id = $Apache::inputtags::response['-1'];
1.33      albertel  671: 	if (  &Apache::response::show_answer() ) {
                    672: 	    my $ans=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
1.51      albertel  673: 	    if (!$Apache::lonxml::default_homework_loaded) {
                    674: 		&Apache::lonxml::default_homework_load($safeeval);
                    675: 	    }
                    676: 	    @Apache::scripttag::parser_env = @_;
1.71      albertel  677: 	    $Apache::inputtags::answertxt{$id}=[&Apache::run::run("return &chemparse(q\0$ans\0);",$safeeval)];
1.33      albertel  678: 	}
1.4       albertel  679:     } elsif ($target eq "edit") {
1.9       albertel  680: 	$result .=&Apache::edit::tag_start($target,$token);
                    681: 	my $answer=&Apache::lonxml::get_param('answer',$parstack,
                    682: 						$safeeval);
1.82      raeburn   683: 	$result .='<span class="LC_nobreak">'.
1.10      albertel  684: 	    &Apache::edit::text_arg('Answer:','answer',$token,40);
1.99      damieng   685: 	$result .= &reaction_preview(&Apache::edit::html_element_name('answer'), $answer).'</span>';
1.35      albertel  686: 	my $initial=&Apache::lonxml::get_param('initial',$parstack,$safeeval);
1.82      raeburn   687: 	$result.='<span class="LC_nobreak">'.
1.43      albertel  688: 	    &Apache::edit::text_arg('Initial Reaction:','initial',$token,40);
1.99      damieng   689:         $result .= &reaction_preview(&Apache::edit::html_element_name('initial'), $initial).'</span>';
1.9       albertel  690: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.10      albertel  691:     }  elsif ($target eq 'modified') {
                    692: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.35      albertel  693: 						     $safeeval,'answer',
                    694: 						     'initial');
1.10      albertel  695: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.4       albertel  696:     }
                    697:     return $result;
                    698: }
                    699: 
                    700: sub end_reactionresponse {
                    701:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    702:     my $result;
1.64      albertel  703: 
                    704:     my $partid = $Apache::inputtags::part;
                    705:     my $id = $Apache::inputtags::response['-1'];
                    706: 
                    707:     if ($target eq 'grade' 
                    708: 	&& &Apache::response::submitted()
                    709: 	&& $Apache::lonhomework::type eq 'exam') {
                    710: 
                    711: 	&Apache::response::scored_response($partid,$id);
                    712: 
                    713:     } elsif ($target eq 'grade' 
                    714: 	&& &Apache::response::submitted()
                    715: 	&& $Apache::lonhomework::type ne 'exam') {
                    716: 
1.31      albertel  717: 	&Apache::response::setup_params($$tagstack[-1],$safeeval);
1.10      albertel  718: 	my $response = &Apache::response::getresponse();
                    719: 	if ( $response =~ /[^\s]/) {
1.15      albertel  720: 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
1.10      albertel  721: 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
                    722: 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
                    723: 	    my $ad;
1.13      albertel  724: 	    foreach my $answer (@answers) {
                    725: 		&Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
1.34      albertel  726: 		if (&chem_standard_order($response) eq 
                    727: 		    &chem_standard_order($answer)) {
1.13      albertel  728: 		    $ad='EXACT_ANS';
                    729: 		} else {
                    730: 		    $ad='INCORRECT';
                    731: 		}
1.10      albertel  732: 	    }
1.87      raeburn   733:             if ($ad) {
                    734:                 if ($Apache::lonhomework::type eq 'survey') {
                    735: 		    $ad='SUBMITTED';
                    736: 	        } elsif ($ad && $Apache::lonhomework::type eq 'surveycred') {
                    737:                     $ad='SUBMITTED_CREDIT';
                    738:                 } elsif ($ad && $Apache::lonhomework::type eq 'anonsurvey') {
                    739:                     $ad='ANONYMOUS';
                    740:                 } elsif ($ad && $Apache::lonhomework::type eq 'anonsurveycred') {
                    741:                     $ad='ANONYMOUS_CREDIT';
                    742:                 }
                    743:             }
1.10      albertel  744: 	    &Apache::response::handle_previous(\%previous,$ad);
                    745: 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
                    746: 	}
                    747:     }  elsif ($target eq "edit") {
1.4       albertel  748: 	$result.= &Apache::edit::tag_end($target,$token,'');
1.15      albertel  749:     } elsif ($target eq 'answer') {
                    750: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                    751: 						     $safeeval);
                    752: 	$result.=&Apache::response::answer_header('reactionresponse');
                    753: 	foreach my $answer (@answers) {
                    754: 	    $result.=&Apache::response::answer_part('reactionresponse',
                    755: 						    $answer);
                    756: 	}
                    757: 	$result.=&Apache::response::answer_footer('reactionresponse');
1.4       albertel  758:     }
1.72      albertel  759:     if ($target eq 'web') {
                    760: 	&Apache::response::setup_prior_tries_hash(\&format_prior_response_reaction);
                    761:     }
1.63      albertel  762: 
                    763:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
                    764: 	$target eq 'tex' || $target eq 'analyze') {
1.90      raeburn   765: 	my $repetition = &Apache::response::repetition();
                    766:         &Apache::lonxml::increment_counter($repetition,"$partid.$id");
1.77      raeburn   767:         if ($target eq 'analyze') {
                    768:             $Apache::lonhomework::analyze{"$partid.$id.type"} = 'reactionresponse';
1.84      raeburn   769:             push (@{ $Apache::lonhomework::analyze{"parts"} },"$partid.$id");
1.77      raeburn   770:             &Apache::lonhomework::set_bubble_lines();
                    771:         }
1.63      albertel  772:     }
1.81      raeburn   773:     my $status=$Apache::inputtags::status['-1'];
                    774:     if  (($target eq 'web') && ($Apache::lonhomework::type ne 'exam') && ($status eq 'CAN_ANSWER')) {
                    775:         my $reaction=$Apache::lonhomework::history{"resource.$partid.$id.submission"};
                    776:         if ($reaction eq '') {  $reaction=&Apache::lonxml::get_param('initial',$parstack,$safeeval); }
1.99      damieng   777:         $result .= &reaction_preview("HWVAL_$id", $reaction);
1.81      raeburn   778:     }
1.63      albertel  779:     &Apache::response::end_response();
1.3       albertel  780:     return $result;
1.1       albertel  781: }
                    782: 
1.72      albertel  783: sub format_prior_response_reaction {
                    784:     my ($mode,$answer) =@_;
                    785:     return '<span class="LC_prior_reaction">'.
                    786: 	    &HTML::Entities::encode($answer,'"<>&').'</span>';
                    787: }
                    788: 
1.46      albertel  789: sub start_chem {
                    790:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    791:     my $result = '';
1.48      albertel  792:     my $inside = &Apache::lonxml::get_all_text_unbalanced("/chem",$parser);
1.46      albertel  793:     if ($target eq 'tex' || $target eq 'web') {
1.48      albertel  794: 	$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
                    795: 	if (!$Apache::lonxml::default_homework_loaded) {
                    796: 	    &Apache::lonxml::default_homework_load($safeeval);
                    797: 	}
                    798: 	@Apache::scripttag::parser_env = @_;
                    799: 	$result=&Apache::run::run("return &chemparse(q\0$inside\0);",$safeeval);
1.46      albertel  800:     }    
                    801:     return $result;
                    802: }
                    803: 
                    804: sub end_chem {
                    805:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    806:     my $result = '';
                    807:     return $result;
                    808: }
                    809: 
1.91      raeburn   810: my $uniq=0;
                    811: sub get_uniq_name {
                    812:     $uniq++;
                    813:     return 'uniquename'.$uniq;
                    814: }
                    815: 
1.1       albertel  816: 1;
                    817: __END__

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