1: # The LearningOnline Network with CAPA
2: # chemical equation style response
3: #
4: # $Id: chemresponse.pm,v 1.57 2005/06/26 22:18:32 albertel Exp $
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;
33: use Apache::lonlocal;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse','chem'));
37: }
38:
39: sub chem_standard_order {
40: my ($reaction) = @_;
41: my ($re,$pr) = split(/->|<=>/,$reaction);
42: my @reactants = split(/\s\+/,$re);
43: my @products = split(/\s\+/,$pr);
44: foreach my $substance (@reactants,@products) {
45: $substance =~ s/(\^\d*)\s+/$1_/g; # protect superscript space
46: $substance =~ s/\s*//g; # strip whitespace
47: $substance =~ s/_/ /g; # restore superscript space
48: }
49: @reactants = sort @reactants;
50: @products = sort @products;
51: my $standard = '';
52: foreach my $substance (@reactants) {
53: $standard .= $substance;
54: $standard .= ' + ';
55: }
56: $standard =~ s/ \+ $//; # get rid of trailing plus sign
57: $standard .= ' -> ';
58: foreach my $substance (@products) {
59: $standard .= $substance;
60: $standard .= ' + ';
61: }
62: $standard =~ s/ \+ $//; # get rid of trailing plus sign
63: return $standard;
64: }
65:
66: sub separate_jme_window {
67: my ($smile_input,$jme_input,$molecule,$options,$shown_text)=@_;
68: my $smilesection;
69: if (defined($smile_input)) {
70: $smilesection=<<SMILESECTION;
71: smiles = document.applets.JME.smiles();
72: opener.document.lonhomework.$smile_input.value = smiles;
73: SMILESECTION
74: }
75: my $jmesection;
76: if (defined($jme_input)) {
77: $jmesection=<<JMESECTION;
78: jmeFile = document.applets.JME.jmeFile();
79: opener.document.lonhomework.$jme_input.value = jmeFile;
80: JMESECTION
81: }
82:
83: if ($molecule) { $molecule='<param name="jme" value="'.$molecule.'" />'; }
84: my $insert_answer;
85: if ($shown_text ne '') {
86: $insert_answer=
87: '<input type="button" name="submit" value="Insert Answer" onclick="javascript:submitSmiles();" />';
88: }
89:
90: my $body=<<CHEMPAGE;
91: <html>
92: <head>
93: <title>Molecule Editor</title>
94: <script type="text/javascript">
95: function submitSmiles() {
96: jmeFile = document.applets.JME.jmeFile();
97: if (jmeFile == "") {
98: alert("Nothing to submit");
99: } else {
100: $jmesection
101: $smilesection
102: window.close();
103: }
104: }
105: function openHelpWindow() {
106: window.open("/adm/jme/jme_help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
107: }
108: </script>
109: </head>
110: <body bgcolor="#ffffff">
111: <center>
112: <applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="440" height="390">
113: You have to enable Java and JavaScript on your machine.
114: $molecule
115: <param name="options" value="$options" />
116: </applet><br />
117: <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>
118: <form>
119: $insert_answer
120: <br />
121: <input type="button" value=" Close " onclick = "javascript:window.close()" />
122:
123: <input type="button" value=" Help " onclick = "javascript:openHelpWindow()" />
124: </form>
125: </center>
126: </body>
127: </html>
128: CHEMPAGE
129: $body=&HTML::Entities::encode($body,'<>&"');
130: $body=~s/\n/ /g;
131: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
132: my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
133: my $display=&mt('Draw Molecule');
134: if (defined($shown_text)) { $display=&mt($shown_text); }
135: my $result=<<CHEMINPUT;
136: <input type="button" value="$display" onclick="javascript:editor=window.open($nothing,'jmeedit','width=500,height=500,menubar=yes,scrollbars=no,resizable=yes');editor.$docopen;editor.document.write('$body');editor.document.close();editor.focus()" />
137: CHEMINPUT
138: return $result;
139: }
140:
141: sub jme_img {
142: my ($jme,$smile,$width,$options)=@_;
143: my $id=&Apache::loncommon::get_cgi_id();
144: my $result='<img alt="'.$smile.'" src="/cgi-bin/convertjme.pl?'.$id.'"';
145: if ($options =~ /border/) { $result.= ' border="1"'; }
146: $result.=' />';
147: &Apache::lonnet::appenv('cgi.'.$id.'.JME' =>
148: &Apache::lonnet::escape($jme),
149: 'cgi.'.$id.'.PNG' => 1,
150: 'cgi.'.$id.'.WIDTH' => $width);
151: return $result;
152: }
153:
154: sub start_organicresponse {
155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
156: my $result;
157: my $partid = $Apache::inputtags::part;
158: my $id = &Apache::response::start_response($parstack,$safeeval);
159: if ($target eq 'meta') {
160: $result=&Apache::response::meta_package_write('organicresponse');
161: } elsif ($target eq 'web') {
162: my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
163: $safeeval);
164: if ( &Apache::response::show_answer() && $jmeanswer ne '') {
165: my $options=&Apache::lonxml::get_param('options',$parstack,
166: $safeeval);
167: my $width=&Apache::lonxml::get_param('width',$parstack,
168: $safeeval);
169: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
170: $safeeval);
171: $result.=&jme_img($jmeanswer,$answers[0],$width,$options);
172: } else {
173: my $molecule;
174: if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
175: $molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
176: } else {
177: $molecule=&Apache::lonxml::get_param('molecule',$parstack,
178: $safeeval);
179: }
180: my $options=&Apache::lonxml::get_param('options',$parstack,
181: $safeeval);
182: my $shown_text;
183: if (&Apache::response::show_answer()) {
184: $shown_text="Show Your Last Answer";
185: }
186: $result=&separate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,
187: $options,$shown_text);
188: $result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
189: }
190: } elsif ($target eq 'edit') {
191: $result .=&Apache::edit::tag_start($target,$token);
192: my $options=&Apache::lonxml::get_param('options',$parstack,
193: $safeeval);
194: if ($options !~ /multipart/) { $options.=',multipart'; }
195: $result .='<nobr>'.
196: &Apache::edit::text_arg('Starting Molecule:','molecule',
197: $token,40);
198: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
199: $safeeval);
200: $result .=&separate_jme_window(undef,
201: &Apache::edit::html_element_name('molecule'),
202: $molecule,$options);
203: $result .='</nobr><br /><nobr>';
204: $result .=&Apache::edit::text_arg('Correct Answer:','answer',
205: $token,40);
206: $result .=&Apache::edit::hidden_arg('jmeanswer',$token);
207: my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
208: $safeeval);
209: $result .=&separate_jme_window(
210: &Apache::edit::html_element_name('answer'),
211: &Apache::edit::html_element_name('jmeanswer'),
212: $jmeanswer,$options);
213: $result .='</nobr><br />';
214: $result .=&Apache::edit::checked_arg('Options:','options',
215: [ ['autoez','Auto E,Z stereochemistry'],
216: ['multipart','Multipart Structures'],
217: ['nostereo','No stereochemistry'],
218: ['reaction','Is a reaction'],
219: ['number','Able to number atoms'] ],
220: ,$token);
221: $result .=&Apache::edit::text_arg('Width of correct answer image:',
222: 'width',$token,10);
223: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
224: } elsif ($target eq 'modified') {
225: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
226: $safeeval,'molecule',
227: 'answer','jmeanswer',
228: 'options','width');
229: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
230: }
231: return $result;
232: }
233:
234: sub end_organicresponse {
235: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
236: my $result;
237: if ($target eq 'grade' && &Apache::response::submitted()) {
238: &Apache::response::setup_params($$tagstack[-1],$safeeval);
239: my $response = &Apache::response::getresponse();
240: if ( $response =~ /[^\s]/) {
241: my $partid = $Apache::inputtags::part;
242: my $id = $Apache::inputtags::response['-1'];
243: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
244: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
245: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
246: my $ad;
247: foreach my $answer (@answers) {
248: &Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
249: if ($response eq $answer) {
250: $ad='EXACT_ANS';
251: last;
252: } else {
253: $ad='INCORRECT';
254: }
255: }
256: if ($ad && $Apache::lonhomework::type eq 'survey') {
257: $ad='SUBMITTED';
258: }
259: &Apache::response::handle_previous(\%previous,$ad);
260: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
261: $Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$env{"form.MOLECULE_$id"};
262: }
263: } elsif ($target eq "edit") {
264: $result.= &Apache::edit::tag_end($target,$token,'');
265: } elsif ($target eq 'answer') {
266: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
267: $safeeval);
268: $result.=&Apache::response::answer_header('organicresponse');
269: foreach my $answer (@answers) {
270: $result.=&Apache::response::answer_part('organicresponse',$answer);
271: }
272: $result.=&Apache::response::answer_footer('organicresponse');
273: }
274: &Apache::response::end_response;
275: return $result;
276: }
277:
278: sub start_organicstructure {
279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
280: my $result;
281: if ($target eq 'web') {
282: my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
283: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
284: my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
285: my $id=&Apache::loncommon::get_cgi_id();
286: $result="<img src='/cgi-bin/convertjme.pl?$id'";
287: if ($options =~ /border/) { $result.= ' border="1"'; }
288: $result.=' />';
289: &Apache::lonnet::appenv(
290: 'cgi.'.$id.'.JME' => &Apache::lonnet::escape($molecule),
291: 'cgi.'.$id.'.PNG' => 1,
292: 'cgi.'.$id.'.WIDTH' => $width );
293: } elsif ($target eq 'tex') {
294: my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1);
295: if (!$texwidth) { $texwidth='90'; }
296: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
297: my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
298: my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
299: '_'.time.'_'.$$.int(rand(1000)).'_organicstructure';
300: my $id=$filename;
301: &Apache::lonnet::appenv(
302: 'cgi.'.$id.'.JME' => &Apache::lonnet::escape($molecule),
303: 'cgi.'.$id.'.PS' => 1,
304: 'cgi.'.$id.'.WIDTH' => $texwidth );
305: $id=&Apache::lonnet::escape($id);
306: &Apache::lonxml::register_ssi("/cgi-bin/convertjme.pl?$id");
307: if ($options =~ /border/) { $result.= '\fbox{'; }
308: $result .= '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$texwidth.' mm]{'.$filename.'.eps}';
309: if ($options =~ /border/) { $result.= '} '; }
310: } elsif ($target eq 'edit') {
311: $result .=&Apache::edit::tag_start($target,$token);
312: $result .=&Apache::edit::text_arg('Width (pixels):','width',$token,5);
313: $result .=&Apache::edit::text_arg('TeXwidth (mm):','texwidth',$token,5);
314: $result .='<nobr>';
315: $result .=&Apache::edit::text_arg('Molecule:','molecule',$token,40);
316: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
317: $safeeval);
318: my $options=&Apache::lonxml::get_param('options',$parstack,
319: $safeeval);
320: if ($options !~ /reaction/) {
321: $options.= ',multipart,number';
322: }
323:
324: $result .=&separate_jme_window(undef,
325: &Apache::edit::html_element_name('molecule'),
326: $molecule,$options);
327: $result.="</nobr><br />";
328: $result .=&Apache::edit::checked_arg('Options:','options',
329: [ ['reaction','Is a reaction'],
330: ['border','Draw a border'] ],
331: $token);
332: $result .=&Apache::edit::end_row();
333: } elsif ($target eq 'modified') {
334: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
335: $safeeval,'molecule',
336: 'width','texwidth',
337: 'options');
338: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
339: }
340: return $result;
341: }
342:
343: sub end_organicstructure {
344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
345: my $result;
346: if ($target eq "edit") {
347: $result.= &Apache::edit::tag_end($target,$token,'');
348: }
349: return $result;
350: }
351:
352: sub edit_reaction_button {
353: my ($id,$field,$reaction)=@_;
354: my $id_es=&Apache::lonnet::escape($id);
355: my $field_es=&Apache::lonnet::escape($field);
356: my $reaction_es=&Apache::lonnet::escape($reaction);
357: my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
358: my $result=<<EDITREACTION;
359: <script type="text/javascript">
360: // <!--
361: function create_reaction_window_${id}_${field} () {
362: editor=window.open('','','width=500,height=270,scrollbars=no,resizable=yes');
363: editor.$docopen;
364: editor.document.writeln('<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html> <head><title>LON-CAPA Reaction Editor</title></head><frameset rows="30%,*" border="0"> <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=$field_es" name="editor" scrolling="no" /> </frameset> </html>');
365: }
366: // -->
367: </script>
368: <input type='button' value='Edit Answer' onclick="javascript:create_reaction_window_${id}_${field}();void(0);" />
369: EDITREACTION
370: return $result;
371: }
372:
373: sub start_reactionresponse {
374: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
375: my $result;
376: my $id = &Apache::response::start_response($parstack,$safeeval);
377: if ($target eq 'meta') {
378: $result=&Apache::response::meta_package_write('reactionresponse');
379: } elsif ($target eq 'web') {
380: my $partid = $Apache::inputtags::part;
381: my $id = $Apache::inputtags::response['-1'];
382: my $reaction=$Apache::lonhomework::history{"resource.$partid.$id.submission"};
383: if ($reaction eq '') { $reaction=&Apache::lonxml::get_param('initial',$parstack,$safeeval); }
384: my $status=$Apache::inputtags::status['-1'];
385: if ($status eq 'CAN_ANSWER') {
386: $result.=&edit_reaction_button($id,"HWVAL_$id",$reaction);
387: }
388: if ( &Apache::response::show_answer() ) {
389: my $ans=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
390: if (!$Apache::lonxml::default_homework_loaded) {
391: &Apache::lonxml::default_homework_load($safeeval);
392: }
393: @Apache::scripttag::parser_env = @_;
394: $Apache::inputtags::answertxt{$id}=&Apache::run::run("return &chemparse(q\0$ans\0);",$safeeval);
395: }
396: } elsif ($target eq "edit") {
397: $result .=&Apache::edit::tag_start($target,$token);
398: my $answer=&Apache::lonxml::get_param('answer',$parstack,
399: $safeeval);
400: $result .='<nobr>'.
401: &Apache::edit::text_arg('Answer:','answer',$token,40);
402: $result .=&edit_reaction_button($id,&Apache::edit::html_element_name('answer'),$answer).'</nobr>';
403: my $initial=&Apache::lonxml::get_param('initial',$parstack,$safeeval);
404: $result.='<nobr>'.
405: &Apache::edit::text_arg('Initial Reaction:','initial',$token,40);
406: $result .=&edit_reaction_button($id,&Apache::edit::html_element_name('initial'),$initial).'</nobr>';
407:
408: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
409: } elsif ($target eq 'modified') {
410: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
411: $safeeval,'answer',
412: 'initial');
413: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
414: }
415: return $result;
416: }
417:
418: sub end_reactionresponse {
419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
420: my $result;
421: if ($target eq 'grade' && &Apache::response::submitted()) {
422: &Apache::response::setup_params($$tagstack[-1],$safeeval);
423: my $response = &Apache::response::getresponse();
424: if ( $response =~ /[^\s]/) {
425: my $partid = $Apache::inputtags::part;
426: my $id = $Apache::inputtags::response['-1'];
427: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
428: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
429: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
430: my $ad;
431: foreach my $answer (@answers) {
432: &Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
433: if (&chem_standard_order($response) eq
434: &chem_standard_order($answer)) {
435: $ad='EXACT_ANS';
436: } else {
437: $ad='INCORRECT';
438: }
439: }
440: if ($ad && $Apache::lonhomework::type eq 'survey') {
441: $ad='SUBMITTED';
442: }
443: &Apache::response::handle_previous(\%previous,$ad);
444: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
445: }
446: } elsif ($target eq "edit") {
447: $result.= &Apache::edit::tag_end($target,$token,'');
448: } elsif ($target eq 'answer') {
449: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
450: $safeeval);
451: $result.=&Apache::response::answer_header('reactionresponse');
452: foreach my $answer (@answers) {
453: $result.=&Apache::response::answer_part('reactionresponse',
454: $answer);
455: }
456: $result.=&Apache::response::answer_footer('reactionresponse');
457: }
458: &Apache::response::end_response;
459: return $result;
460: }
461:
462: sub start_chem {
463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
464: my $result = '';
465: my $inside = &Apache::lonxml::get_all_text_unbalanced("/chem",$parser);
466: if ($target eq 'tex' || $target eq 'web') {
467: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
468: if (!$Apache::lonxml::default_homework_loaded) {
469: &Apache::lonxml::default_homework_load($safeeval);
470: }
471: @Apache::scripttag::parser_env = @_;
472: $result=&Apache::run::run("return &chemparse(q\0$inside\0);",$safeeval);
473: }
474: return $result;
475: }
476:
477: sub end_chem {
478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
479: my $result = '';
480: return $result;
481: }
482:
483: 1;
484: __END__
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