1: # The LearningOnline Network with CAPA
2: # chemical equation style response
3: #
4: # $Id: chemresponse.pm,v 1.6 2003/06/30 18:00:18 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:
34: BEGIN {
35: &Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse'));
36: }
37:
38: sub seperate_jme_window {
39: my ($smile_input,$jme_input,$molecule,$options)=@_;
40: my $smilesection;
41: if (defined($smile_input)) {
42: $smilesection=<<SMILESECTION;
43: opener.document.lonhomework.$smile_input.value = smiles;
44: SMILESECTION
45: }
46: my $jmesection;
47: if (defined($jme_input)) {
48: $jmesection=<<JMESECTION;
49: jmeFile = document.applets.JME.jmeFile();
50: opener.document.lonhomework.$jme_input.value = jmeFile;
51: JMESECTION
52: }
53:
54: my $body=<<CHEMPAGE;
55: <html>
56: <head>
57: <title>Molecule Editor</title>
58: <script language="JavaScript">
59: function submitSmiles() {
60: smiles = document.applets.JME.smiles();
61: if (smiles == "") {
62: alert("Nothing to submit");
63: } else {
64: $smilesection
65: $jmesection
66: window.close();
67: }
68: }
69: function openHelpWindow() {
70: window.open("/adm/jme/jme_help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
71: }
72: </script>
73: </head>
74: <body bgcolor="#ffffff">
75: <center>
76: <applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="97%" height="78%">
77: You have to enable Java and JavaScript on your machine.
78: <param name="jme" value="$molecule" />
79: <param name="options" value="$options" />
80: </applet><br />
81: <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>
82: <form>
83: <input type="button" name="submit" value="Insert Answer" onClick = "submitSmiles();" />
84: <br />
85: <input type="button" value=" Close " onClick = "window.close()" />
86:
87: <input type="button" value=" Help " onClick = "openHelpWindow()" />
88: </form>
89: </center>
90: </body>
91: </html>
92: CHEMPAGE
93: $body=&HTML::Entities::encode($body);
94: $body=~s/\n/ /g;
95: my $result=<<CHEMINPUT;
96: <input type="button" value="Draw Molecule" onClick="javascript:editor=window.open('','','width=500,height=500,scrollbars=no,resizable=yes');editor.document.open('text/html','replace');editor.document.writeln('$body')" />
97: CHEMINPUT
98: return $result;
99: }
100:
101: sub start_organicresponse {
102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
103: my $result;
104: my $partid = $Apache::inputtags::part;
105: my $id = &Apache::response::start_response($parstack,$safeeval);
106: if ($target eq 'meta') {
107: } elsif ($target eq 'web') {
108: my $molecule;
109: if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
110: $molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
111: } else {
112: $molecule=&Apache::lonxml::get_param('molecule',$parstack,
113: $safeeval);
114: }
115: my $multipart=&Apache::lonxml::get_param('multipart',$parstack,
116: $safeeval);
117: if ($multipart eq 'yes') {
118: $multipart = 'multipart';
119: } else {
120: $multipart ='';
121: }
122: $result=&seperate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,$multipart);
123: $result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
124: } elsif ($target eq 'edit') {
125: $result .=&Apache::edit::tag_start($target,$token);
126: $result .=&Apache::edit::text_arg('Starting Molecule:','molecule',
127: $token,40);
128: $result .=&Apache::edit::select_arg('Multipart:','multipart',
129: ['yes','no'],$token);
130: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
131: $safeeval);
132: $result .=&seperate_jme_window(undef,
133: &Apache::edit::html_element_name('molecule'),
134: $molecule,'multipart');
135: $result .='<br />';
136: $result .=&Apache::edit::text_arg('Correct Answer:','answer',
137: $token,40);
138: $result .=&Apache::edit::hidden_arg('jmeanswer',$token);
139: my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
140: $safeeval);
141: $result .=&seperate_jme_window(
142: &Apache::edit::html_element_name('answer'),
143: &Apache::edit::html_element_name('jmeanswer'),
144: $jmeanswer,'multipart');
145: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
146: } elsif ($target eq 'modified') {
147: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
148: $safeeval,'molecule',
149: 'answer','jmeanswer',
150: 'multipart');
151: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
152: }
153: return $result;
154: }
155:
156: sub end_organicresponse {
157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
158: my $result;
159: if ($target eq 'grade' && defined($ENV{'form.submitted'})) {
160: &Apache::response::setup_params($$tagstack[-1]);
161: my $response = &Apache::response::getresponse();
162: if ( $response =~ /[^\s]/) {
163: my $partid = $Apache::inputtags::part;
164: my $id = $Apache::inputtags::response['-1'];
165: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
166: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
167: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
168: &Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
169: my $ad;
170: if ($response eq $answer) {
171: $ad='EXACT_ANS';
172: } else {
173: $ad='INCORRECT';
174: }
175: &Apache::response::handle_previous(\%previous,$ad);
176: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
177: $Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$ENV{"form.MOLECULE_$id"};
178: }
179: } elsif ($target eq "edit") {
180: $result.= &Apache::edit::tag_end($target,$token,'');
181: }
182: &Apache::response::end_response;
183: return $result;
184: }
185:
186: sub start_organicstructure {
187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
188: my $result;
189: if ($target eq 'web') {
190: my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
191: my $height=&Apache::lonxml::get_param('height',$parstack,$safeeval);
192: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
193: $result=<<CHEMOUTPUT;
194: <applet code="JME.class" archive="/adm/jme/JME.jar" width="$width" height="$height">
195: <param name="options" value="depict border" />
196: <param name="jme" value="$molecule" />
197: </applet>
198: CHEMOUTPUT
199: } elsif ($target eq 'edit') {
200: $result .=&Apache::edit::tag_start($target,$token);
201: $result .=&Apache::edit::text_arg('Width:','width',$token,5);
202: $result .=&Apache::edit::text_arg('Height:','height',$token,5);
203: $result .=&Apache::edit::text_arg('Molecule:','molecule',$token,40);
204: my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
205: $safeeval);
206: $result .=&seperate_jme_window(undef,
207: &Apache::edit::html_element_name('molecule'),
208: $molecule,'multipart');
209: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
210: } elsif ($target eq 'modified') {
211: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
212: $safeeval,'molecule',
213: 'width','height');
214: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
215: }
216: return $result;
217: }
218:
219: sub end_organicstructure {
220: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
221: my $result;
222: if ($target eq "edit") {
223: $result.= &Apache::edit::tag_end($target,$token,'');
224: }
225: return $result;
226: }
227:
228: sub reaction_javascript {
229: my $rightarrow;
230: if ($ENV{'browser.unicode'}) {
231: $rightarrow=" → "
232: } else {
233: $rightarrow=" <font face=symbol>®</font> ";
234: }
235: my $result=<<REACTIONJAVASCRIPT;
236: <script language="JavaScript">
237:
238: var level;
239: var reactants;
240: var products;
241:
242:
243: function parse_reaction(string) {
244: var reaction_array = string.split('->');
245: var i;
246: reactants = new Array(0);
247: products = new Array(0);
248:
249: if (reaction_array.length > 0)
250: reactants = reaction_array[0].split(' +');
251: if (reaction_array.length > 1)
252: products = reaction_array[1].split(' +');
253: }
254:
255: function to_capa(string) {
256: var reaction = "";
257: var i;
258:
259: parse_reaction(string);
260:
261: for (i = 0; i < reactants.length; i++)
262: reactants[i] = capa_component(reactants[i]);
263: for (i = 0; i < products.length; i++)
264: products[i] = capa_component(products[i]);
265:
266: reactants.sort();
267: products.sort();
268:
269: for (i = 0; i < reactants.length-1; i++) {
270: reaction += reactants[i];
271: reaction += " + ";
272: }
273: if (i < reactants.length)
274: reaction += reactants[i];
275: if (products.length > 0) {
276: reaction += " -> ";
277: for (i = 0; i < products.length-1; i++) {
278: reaction += products[i];
279: reaction += " + ";
280: }
281: if (i < products.length)
282: reaction += products[i];
283: }
284:
285: return reaction;
286: }
287:
288: function capa_component(string) {
289: var reactant = "";
290: var i = 0;
291: level = 0;
292:
293: for (;string.substring(i,i+1) == ' ';i++)
294: ;
295: for (;isDigit(string.substring(i,i+1));i++)
296: reactant += string.substring(i,i+1);
297: for (;i < string.length;i++)
298: reactant += capa_char(string.substring(i,i+1));
299:
300: return reactant;
301: }
302:
303: function capa_char(chr) {
304: if (level == 0) { // baseline
305: if (chr == '^')
306: level = 1;
307: if (chr == ' ')
308: return "";
309: return chr;
310: }
311: if (level == 1) { // superscript
312: if (isDigit(chr))
313: return chr;
314: level = 0;
315: return chr;
316: }
317: }
318:
319: function to_html(string) {
320: var reaction = "";
321: var i;
322:
323: parse_reaction(string);
324: for (i = 0; i < reactants.length-1; i++) {
325: reaction += html_component(reactants[i]);
326: reaction += " + ";
327: }
328: if (i < reactants.length)
329: reaction += html_component(reactants[i]);
330:
331: if (products.length > 0) {
332: reaction += " $rightarrow ";
333: for (i = 0; i < products.length-1; i++) {
334: reaction += html_component(products[i]);
335: reaction += " + ";
336: }
337: if (i < products.length)
338: reaction += html_component(products[i]);
339: }
340:
341: return reaction;
342: }
343:
344: function html_component(string) {
345: var reactant = "";
346: var i = 0;
347: level = 0;
348:
349: for (;string.substring(i,i+1) == ' ';i++)
350: ;
351: for (;isDigit(string.substring(i,i+1));i++)
352: reactant += string.substring(i,i+1);
353: for (;i < string.length;i++)
354: reactant += html_char(string.substring(i,i+1));
355:
356: return reactant;
357: }
358:
359: function html_char(chr) {
360: if (level == 0) { // baseline
361: if (isDigit(chr))
362: return chr.sub();
363: if (chr == '^') {
364: level = 1;
365: return "";
366: }
367: if (chr == '+') // baseline or superscript
368: return "?";
369: if (chr == ' ')
370: return "";
371: return chr;
372: }
373: if (level == 1) { // superscript
374: if (isDigit(chr))
375: return chr.sup();
376: if (chr == '+' || chr == '-') {
377: level = 0;
378: return chr.sup();
379: }
380: if (chr == ' ') {
381: level = 0;
382: return "";
383: }
384: level = 0;
385: return chr;
386: }
387: }
388:
389: function isDigit(string) {
390: if (string >= '0' && string <='9')
391: return 1;
392: else
393: return 0;
394: }
395:
396: function openHelpWindow() {
397: window.open("reaction_help.html","","scrollbars=yes,resizable=yes,width=550,height=600")
398: }
399:
400: function submitReaction() {
401: reaction = to_capa(document.form.text.value);
402: if (reaction == "") {
403: alert("Nothing to submit");
404: }
405: else {
406: name = "INPUT" + ((problem < 10) ? "0" : "") + problem;
407: i = 0;
408: while (parent.opener.document.CAPA.elements[i].name != name)
409: i++;
410: parent.opener.document.CAPA.elements[i].value = reaction;
411: parent.opener.document.CAPA.submit();
412: }
413: }
414: </script>
415: REACTIONJAVASCRIPT
416: return $result;
417: }
418:
419: sub start_reactionresponse {
420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
421: my $result;
422: my $id = &Apache::response::start_response($parstack,$safeeval);
423: if ($target eq 'web') {
424: $result.=<<EDITREACTION;
425: <input type='button' value='Edit Reaction' onClick="javascript:editor=window.open('/adm/jme/reaction_window.html','','width=500,height=270,scrollbars=no,resizable=yes'); document.cookie='problem=$id';"/>'
426: EDITREACTION
427:
428: # $result.=&reaction_javascript();
429: # $result.='<iframe name="REACTION_'.$id.'" width="200" height="100" src="/adm/jme/reaction_viewer.html"></iframe>';
430: # $result.='<input type="button" value="Check" onClick = "javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<center><br />\'+to_html(document.lonhomework.HWVAL_'.$id.'.value)+\'</center><input type="button" value=" Close " onClick = "parent.window.close()" />\');newWindow.document.close()" />'
431: } elsif ($target eq "edit") {
432: }
433: return $result;
434: }
435:
436: sub end_reactionresponse {
437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
438: my $result;
439: if ($target eq "edit") {
440: $result.= &Apache::edit::tag_end($target,$token,'');
441: }
442: &Apache::response::end_response;
443: return $result;
444: }
445:
446: 1;
447: __END__
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