1: # LearningOnline Network with CAPA
2: # option list style responses
3: #
4: # $Id: optionresponse.pm,v 1.156 2008/11/20 15:19:15 jms 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:
30:
31:
32:
33: package Apache::optionresponse;
34: use strict;
35: use Apache::response();
36: use Apache::lonlocal;
37: use Apache::lonnet;
38:
39: BEGIN {
40: &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
41: }
42:
43: sub start_optionresponse {
44: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
45: my $result='';
46: #when in a option response use these
47: &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
48: push (@Apache::lonxml::namespace,'optionresponse');
49: my $id = &Apache::response::start_response($parstack,$safeeval);
50: %Apache::hint::option=();
51: undef(%Apache::response::foilnames);
52: if ($target eq 'edit') {
53: $result.=&Apache::edit::start_table($token)
54: .'<tr><td><span class="LC_nobreak">'.&mt('Multiple Option Response Question').'</span> '
55: .&Apache::loncommon::help_open_topic('Option_Response_Problems')."</td>"
56: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
57: .&Apache::edit::deletelist($target,$token)
58: .'</span></td>'
59: ."<td> "
60: .&Apache::edit::end_row()
61: .&Apache::edit::start_spanning_row()
62: ."\n";
63: $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
64: $token,'4').
65: &Apache::edit::select_arg('Randomize Foil Order:','randomize',
66: ['yes','no'],$token).
67: &Apache::edit::select_arg(&mt('Display of options when printed'),'TeXlayout',
68: [['horizontal',&mt('Normal list')],
69: ['vertical',&mt('Listed in a vertical column')]],$token).
70: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
71: } elsif ($target eq 'modified') {
72: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
73: $safeeval,'max','randomize',
74: 'TeXlayout');
75: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
76: } elsif ($target eq 'meta') {
77: $result=&Apache::response::meta_package_write('optionresponse');
78: } elsif ($target eq 'analyze') {
79: my $part_id="$Apache::inputtags::part.$id";
80: $Apache::lonhomework::analyze{"$part_id.type"} = 'optionresponse';
81: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
82: push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} }, 1);
83:
84: }
85: return $result;
86: }
87:
88: sub end_optionresponse {
89: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
90: &Apache::response::end_response;
91: pop @Apache::lonxml::namespace;
92: &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
93: my $result;
94: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
95: undef(%Apache::response::foilnames);
96: return $result;
97: }
98:
99: %Apache::response::foilgroup=();
100: sub start_foilgroup {
101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
102:
103: my $result='';
104: %Apache::response::foilgroup=();
105: $Apache::optionresponse::conceptgroup=0;
106: &Apache::response::pushrandomnumber();
107: if ($target eq 'edit') {
108: my $optionlist="<option></option>\n";
109: my $option;
110: my @opt;
111: eval '@opt ='. &Apache::lonxml::get_param('options',$parstack,$safeeval);
112: my $count=1;
113: foreach $option (@opt) {
114: $optionlist.="<option value=\"$count\">$option</option>\n";
115: $count++;
116: }
117: my $insertlist=&Apache::edit::insertlist($target,$token);
118: $result.=&Apache::edit::start_table($token);
119: $result.= (<<ENDTABLE);
120: <tr><td>Select Options</td>
121: <td>
122: Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
123: </td>
124: <td>Delete an Option:
125: <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
126: ENDTABLE
127: $result.= &Apache::edit::checked_arg('Print options:','texoptions',
128: [ ['nochoice','Don\'t show option list'] ]
129: ,$token);
130: $result.= &Apache::edit::end_row();
131: $result.= &Apache::edit::start_spanning_row();
132: $result.= $insertlist.'<br />';
133: }
134: if ($target eq 'modified') {
135: my @options;
136: my $optchanged=0;
137: eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
138: if ($env{"form.$Apache::lonxml::curdepth.deleteopt"}) {
139: my $delopt=$env{"form.$Apache::lonxml::curdepth.deleteopt"};
140: &Apache::lonxml::debug("Deleting :$delopt:");
141: splice(@options,$delopt-1,1);
142: $optchanged=1;
143: }
144: if ($env{"form.$Apache::lonxml::curdepth.options"}) {
145: my $newopt = $env{"form.$Apache::lonxml::curdepth.options"};
146: if ($options[0]) {
147: push(@options,$newopt);
148: } else {
149: $options[0]=$newopt;
150: }
151: $optchanged=1;
152: }
153: my $rebuildtag = &Apache::edit::get_new_args($token,$parstack,$safeeval,
154: ('texoptions'));
155: if ($optchanged || $rebuildtag ) {
156: $result = "<foilgroup options=\"(";
157: foreach my $option (@options) {
158: $option=~s/\'/\\\'/g;
159: &Apache::lonxml::debug("adding option :$option:");
160: $result .="'".$option."',";
161: }
162: chop $result;
163: $result.=')" ';
164: $result .= 'texoptions="'.$token->[2]{'texoptions'}.'" ';
165: $result .= '>';
166: } # else nothing changed so just use the default mechanism
167: }
168: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
169: if($env{'form.pdfFormFields'} ne 'yes') {
170: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
171: \begin{enumerate} ';
172: } else {
173: $result .= "\\\\";
174: }
175: }
176: return $result;
177: }
178:
179: sub end_foilgroup {
180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
181:
182: my $result;
183: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
184: $target eq 'tex' || $target eq 'analyze') {
185: my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
186: my $name;
187: my @opt;
188: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
189: &Apache::lonxml::debug("options:".join(':',@opt));
190:
191: my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
192: -2,0);
193: if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
194: &Apache::lonxml::debug("Options are $#opt");
195: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
196: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
197: $safeeval,'-2');
198: if ($target eq 'web' || $target eq 'tex') {
199: $result.=&displayfoils($target,$max,$randomize,$TeXlayout,@opt);
200: $Apache::lonxml::post_evaluate=0;
201: } elsif ( $target eq 'answer') {
202: $result.=&displayanswers($max,$randomize,@opt);
203:
204: } elsif ( $target eq 'analyze') {
205: my @shown = &whichfoils($max,$randomize);
206: &Apache::response::analyze_store_foilgroup(\@shown,
207: ['text','value','location']);
208: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
209: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
210: } elsif ( $target eq 'grade') {
211: if ( &Apache::response::submitted()) {
212: my @whichopt = &whichfoils($max,$randomize);
213: my $temp=1;my $name;
214: my %responsehash;
215: my %grade;
216: my $right=0;
217: my $wrong=0;
218: my $ignored=0;
219: foreach $name (@whichopt) {
220: my $response=&Apache::response::getresponse($temp);
221: if ($env{'form.submitted'} eq 'scantron' && $response=~/\S/) {
222: $response = $opt[$response];
223: }
224: if ( $response =~ /[^\s]/) {
225: $responsehash{$name}=$response;
226: my $value=$Apache::response::foilgroup{$name.'.value'};
227: &Apache::lonxml::debug("submitted a $response for $value<br />\n");
228: if ($value eq $response) {
229: $grade{$name}='1'; $right++;
230: } else {
231: $grade{$name}='0'; $wrong++;
232: }
233: } else {
234: $ignored++;
235: }
236: $temp++;
237: }
238: my $part=$Apache::inputtags::part;
239: my $id = $Apache::inputtags::response['-1'];
240: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
241: my $gradestr =&Apache::lonnet::hash2str(%grade);
242: my %previous=&Apache::response::check_for_previous($responsestr,
243: $part,$id);
244: &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
245: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
246: $responsestr;
247: $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
248:
249: if ($Apache::lonhomework::type eq 'survey') {
250: if ($ignored == 0) {
251: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
252: &Apache::response::handle_previous(\%previous,$ad);
253: } elsif ($wrong==0 && $right==0) {
254: } else {
255: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
256: &Apache::response::handle_previous(\%previous,$ad);
257: }
258: } elsif (!$Apache::lonhomework::scantronmode) {
259: my $ad;
260: if ($wrong==0 && $ignored==0) {
261: $ad='EXACT_ANS';
262: } elsif ($wrong==0 && $right==0) {
263: #nothing submitted
264: } else {
265: if ($ignored==0) {
266: $ad='INCORRECT';
267: } else {
268: $ad='MISSING_ANSWER';
269: }
270: }
271: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
272: &Apache::response::handle_previous(\%previous,$ad);
273: } else {
274: my $ad;
275: if ($wrong==0 && $right==0) {
276: #nothing submitted only assign a score if we
277: #need to override a previous grade
278: if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
279: $ad='ASSIGNED_SCORE';
280: }
281: } else {
282: $ad='ASSIGNED_SCORE';
283: }
284: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
285: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
286: $right/(scalar(@whichopt));
287: $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
288: scalar(@whichopt);
289: }
290: }
291: }
292: my $part_id = $Apache::inputtags::part;
293: my $response_id = $Apache::inputtags::response[-1];
294: &Apache::lonxml::increment_counter(&getfoilcounts($max),
295: "$part_id.$response_id");
296: if ($target eq 'analyze') {
297: &Apache::lonhomework::set_bubble_lines();
298: }
299:
300: } elsif ($target eq 'edit') {
301: $result.=&Apache::edit::end_table();
302: }
303: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
304: if($env{'form.pdfFormFields'} ne 'yes') {
305: $result .= '\end{enumerate}';
306: } else {
307: $result .= "\\\\";
308: }
309: }
310: &Apache::response::poprandomnumber();
311: return $result;
312: }
313:
314: sub getfoilcounts {
315: my ($max)=@_;
316: # +1 since instructors will count from 1
317: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
318: if (&Apache::response::showallfoils()) { $max=$count; }
319: if ($count>$max) { $count=$max }
320: &Apache::lonxml::debug("Count is $count from $max");
321: return $count;
322: }
323:
324: sub whichfoils {
325: my ($max,$randomize)=@_;
326: return &Apache::response::whichorder($max,$randomize,
327: &Apache::response::showallfoils(),
328: \%Apache::response::foilgroup);
329: }
330:
331: sub displayanswers {
332: my ($max,$randomize,@opt)=@_;
333: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
334: my @names = @{ $Apache::response::foilgroup{'names'} };
335: my @whichopt = &whichfoils($max,$randomize);
336: my $result;
337: if ($Apache::lonhomework::type eq 'exam') {
338: my $i = 0;
339: my %opt = map { ($_,$i++) } @opt;
340:
341: $i = 0;
342: my @alphabet = ('A'..'Z');
343: foreach my $name (@whichopt) {
344: $result.=&Apache::response::answer_header('optionresponse',$i++);
345: $result.=&Apache::response::answer_part('optionresponse',
346: $alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
347: $result.=&Apache::response::answer_part('optionresponse',
348: $Apache::response::foilgroup{$name.'.value'});
349: $result.=&Apache::response::answer_footer('optionresponse');
350: }
351: } else {
352: $result=&Apache::response::answer_header('optionresponse');
353: foreach my $name (@whichopt) {
354: $result.=&Apache::response::answer_part('optionresponse',
355: $Apache::response::foilgroup{$name.'.value'});
356: }
357: $result.=&Apache::response::answer_footer('optionresponse');
358: }
359: return $result;
360: }
361:
362: sub check_for_invalid {
363: my ($names,$options) = @_;
364: my %bad_names;
365: foreach my $name (@{ $names }) {
366: my $value=$Apache::response::foilgroup{$name.'.value'};
367: my $found=0;
368: foreach my $option (@{ $options }) {
369: if ($value eq $option) { $found=1; }
370: }
371: if (!$found) { $bad_names{$name}=$value; }
372: }
373: if (%bad_names) {
374: my $error=&mt('The question can not be gotten correct, '.
375: 'the following foils in the <optionresponse> '.
376: 'have invalid correct options').' <br /><tt>'.
377: join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
378: "</tt>";
379: &Apache::lonxml::error($error);
380: }
381: }
382:
383: sub displayfoils {
384: my ($target,$max,$randomize,$TeXlayout,@opt)=@_;
385: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
386: my @names = @{ $Apache::response::foilgroup{'names'} };
387: my @truelist;
388: my @falselist;
389: my $result;
390: my $name;
391: my $displayoptionintex=1;
392: my @alphabet = ('A'..'Z');
393: my @whichopt = &whichfoils($max,$randomize);
394: &check_for_invalid(\@whichopt,\@opt);
395: my $part=$Apache::inputtags::part;
396: my $id=$Apache::inputtags::response[-1];
397: my $break;
398: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
399: if ( ($target ne 'tex') &&
400: &Apache::response::show_answer() ) {
401: my $temp=1;
402: foreach $name (@whichopt) {
403: my $text=$Apache::response::foilgroup{$name.'.text'};
404: my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
405: my $lastopt=$lastresponse{$name};
406: if ($text!~/^\s*$/) { $break='<br />'; }
407: $result.=$break;
408: if ($target eq 'web') {
409: my $value=$Apache::response::foilgroup{$name.'.value'};
410: if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
411: if ($text=~/^\s*$/) {
412: $text=$value.$text;
413: } else {
414: $text='<b>'.$value.':</b> '.$text;
415: }
416: } else {
417: $text='•'.$text;
418: }
419: $result.=$text."\n";
420: }
421: if ($Apache::lonhomework::type eq 'exam') {
422: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
423: }
424: $temp++;
425: }
426: } else {
427: my $temp=1;
428: my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
429: my $internal_counter=$Apache::lonxml::counter;
430: foreach $name (@whichopt) {
431: my $text=$Apache::response::foilgroup{$name.'.text'};
432: if ($text!~/^\s*$/) {
433: if ($target eq 'tex') {
434: $break='\vskip 0 mm ';
435: } elsif ($target eq 'web') {
436: $break='<br />';
437: }
438: }
439: my $lastopt=$lastresponse{$name};
440: my $optionlist="<option></option>\n";
441:
442: if($target eq 'tex' and $env{'form.pdfFormFields'} eq 'yes') {
443: my $fieldname = $env{'request.symb'}.'&part_'.$Apache::inputtags::part.'&optionresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'].':'.$temp;
444: $optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
445: }
446:
447: foreach my $option (@opt) {
448: my $escopt=&HTML::Entities::encode($option,'\'"&<>');
449: if ($option eq $lastopt) {
450: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
451: $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
452: } else {
453: $optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
454: }
455: } else {
456: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
457: $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
458: } else {
459: $optionlist.="<option value='".$escopt."'>$option</option>\n";
460: }
461: }
462: }
463: if ($target ne 'tex') {
464: if ($Apache::lonhomework::type ne 'exam') {
465: $optionlist='<select onchange="javascript:setSubmittedPart(\''.
466: $part.'\');" name="HWVAL_'.
467: $Apache::inputtags::response['-1'].':'.$temp.'">'.
468: $optionlist."</select>\n";
469: } else {
470: $optionlist='<u>'.(' 'x10).'</u>';
471: }
472: if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
473: if ($Apache::lonhomework::type ne 'exam') {
474: $text='•'.$text;
475: }
476: } else {
477: if ($Apache::lonhomework::type ne 'exam') {
478: $text=$optionlist.$text;
479: }
480: }
481: $result.=$break.$text."\n";
482: if ($Apache::lonhomework::type eq 'exam') {
483: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
484: }
485: $temp++;
486: } else {
487: my $texoptionlist='';
488: if ($displayoptionintex &&
489: $Apache::lonhomework::type ne 'exam') {
490: $texoptionlist = &optionlist_correction($TeXlayout,@opt);
491: }
492: if ($text=~/<drawoptionlist\s*\/>/) {
493: $text=~s|<drawoptionlist\s*\/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |g;
494: }
495:
496: if ($text=~m/\\item /) {
497: if ($Apache::lonhomework::type eq 'exam') {
498: $text=~s/\\item/\\vskip 2 mm/;
499: } elsif ($env{'form.pdfFormFields'} ne 'yes') {
500: $result.= $texoptionlist.$text;
501: }
502: } else {
503: if ($Apache::lonhomework::type eq 'exam') {
504: $result.= $texoptionlist.' '.$text;
505: } elsif ($env{'form.pdfFormFields'} ne 'yes') {
506: if ($text=~/\S/) {
507: $result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;
508: } else {
509: $result.= $texoptionlist;
510: }
511: }
512: }
513: if ($Apache::lonhomework::type eq 'exam') {
514: $result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.
515: $internal_counter.'}.]'.&bubbles(\@alphabet,\@opt).
516: '\end{enumerate} \vskip -8 mm \strut ';
517: $internal_counter++;
518: }
519: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes') {
520: $text =~ s/.*indent(.*)$/$1/;
521: $text = $1;
522: $result .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut \\\\';
523: $temp++;
524: }
525: $displayoptionintex=0;
526: }
527: }
528: }
529:
530: if ($target eq 'web') {
531: &Apache::response::setup_prior_tries_hash(\&Apache::rankresponse::format_prior_answer,
532: [\@whichopt,
533: 'submissiongrading']);
534: }
535:
536: if ($target ne 'tex') {
537: return $result.$break;
538: } else {
539: return $result;
540: }
541: }
542:
543:
544: sub optionlist_correction {
545: my ($TeXlayout,@options) = @_;
546: my $texoptionlist='\\item [] '.&mt('Choices:').' ';
547: if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
548: if (scalar(@options) > 0) {
549: foreach my $option (@options) {
550: $texoptionlist.='{\bf '.
551: &Apache::lonxml::latex_special_symbols($option).
552: '}';
553: if ($TeXlayout eq 'vertical') {
554: $texoptionlist.=' \vskip 0 mm ',
555: } else {
556: $texoptionlist.=', ';
557: }
558: }
559: $texoptionlist=~s/, $//;
560: if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
561: } else {
562: if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
563: }
564: return $texoptionlist;
565: }
566:
567:
568: sub webbubbles {
569: my ($ropt,$ralphabet,$temp,$lastopt)=@_;
570: my @opt=@$ropt;
571: my @alphabet=@$ralphabet;
572: my $result='';
573: my $number_of_bubbles = $#opt + 1;
574: $result.= '<table border="1"><tr>';
575: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
576: my $checked='';
577: if ($lastopt eq $opt[$ind]) {
578: $checked=' checked="on" ';
579: }
580: $result.='<td><input type="radio" name="HWVAL_'.
581: $Apache::inputtags::response['-1'].':'.$temp.
582: '" value="'.$opt[$ind].'" '.$checked.' />';
583: if ($alphabet[$ind]) {
584: $result.=$alphabet[$ind].': ';
585: }
586: $result.=$opt[$ind].'</td>';
587: }
588: $result.='</tr></table>';
589: return $result;
590: }
591:
592:
593: sub bubbles {
594: my ($ralphabet,$ropt,$response, $max_width) = @_;
595: my @alphabet = @$ralphabet;
596: my @opt = @$ropt;
597: my ($result,$head,$line) =('','','');
598: my $number_of_bubbles = $#opt + 1;
599: my $current_length = 0;
600: my $textwidth;
601: if (defined($max_width)) {
602: $textwidth=$max_width;
603: &Apache::lonxml::debug("Max width passed in: $max_width");
604: } elsif ($env{'form.textwidth'} ne '') {
605: $env{'form.textwidth'}=~/(\d+)/;
606: $textwidth=$1;
607: &Apache::lonxml::debug("Max width from form: $textwidth");
608: } else {
609: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
610: $textwidth=$1.'.'.$2;
611: &Apache::lonxml::debug("Max width defaults? $textwidth");
612: }
613: &Apache::lonxml::debug("Final maxwidth: $textwidth");
614: for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
615: my $leftmargin;
616: $opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
617: if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
618: if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
619:
620: $current_length += (length($opt[$ind])+length($alphabet[$ind])+4)*2;
621: if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
622: $line.='\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
623: $head.='lr';
624: } else {
625: $line=~s/\&\s*$//;
626: $result.='\vskip -2 mm\noindent\setlength{\tabcolsep}{2 mm}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
627: $line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;
628: $head ='lr';
629: $current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;
630: }
631:
632: }
633: return $result;
634: }
635:
636:
637: sub start_conceptgroup {
638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
639: $Apache::optionresponse::conceptgroup=1;
640: %Apache::response::conceptgroup=();
641: my $result;
642: if ($target eq 'edit') {
643: $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
644: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
645: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
646: }
647: if ($target eq 'modified') {
648: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
649: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
650: }
651: return $result;
652: }
653:
654: sub end_conceptgroup {
655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
656: $Apache::optionresponse::conceptgroup=0;
657: my $result='';
658: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
659: $target eq 'tex' || $target eq 'analyze') {
660: #if not there aren't any foils to display and thus no question
661: &Apache::response::pick_foil_for_concept($target,
662: ['value','text','location'],
663: \%Apache::hint::option,
664: $parstack,$safeeval);
665: } elsif ($target eq 'edit') {
666: $result=&Apache::edit::end_table();
667: }
668: return $result;
669: }
670:
671: sub insert_conceptgroup {
672: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
673: return $result;
674: }
675:
676: sub start_foil {
677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
678: my $result='';
679: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
680: &Apache::lonxml::startredirection;
681: if ($target eq 'analyze') {
682: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
683: }
684: } elsif ($target eq 'edit') {
685: $result=&Apache::edit::tag_start($target,$token,"Foil");
686: my $level='-2';
687: if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
688: my @opt;
689: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
690: $result.=&Apache::edit::text_arg('Name:','name',$token);
691: $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
692: ['unused',(@opt)],$token,'15');
693: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
694: $safeeval,'-3');
695: if ($randomize ne 'no') {
696: $result.=&Apache::edit::select_arg('Location:','location',
697: ['random','top','bottom'],$token);
698: }
699: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
700: } elsif ($target eq 'modified') {
701: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
702: 'value','name','location');
703: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
704: }
705: return $result;
706: }
707:
708: sub end_foil {
709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
710: my $text ='';
711: my $result = '';
712: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
713: $text=&Apache::lonxml::endredirection;
714: if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
715: if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;}
716: }
717: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
718: || $target eq 'tex' || $target eq 'analyze') {
719: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
720: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
721: $text='\vskip 5mm $\triangleright$ '.$text;
722: }
723: if ($value ne 'unused') {
724: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
725: &Apache::lonxml::debug("Got a name of :$name:");
726: if ($name eq "") {
727: &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
728: $name=$Apache::lonxml::curdepth;
729: }
730: &Apache::lonxml::debug("Using a name of :$name:");
731: if (defined($Apache::response::foilnames{$name})) {
732: &Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
733: }
734: $Apache::response::foilnames{$name}++;
735: my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
736: if ( $Apache::optionresponse::conceptgroup
737: && !&Apache::response::showallfoils() ) {
738: push @{ $Apache::response::conceptgroup{'names'} }, $name;
739: $Apache::response::conceptgroup{"$name.value"} = $value;
740: $Apache::response::conceptgroup{"$name.text"} = $text;
741: $Apache::response::conceptgroup{"$name.location"} = $location;
742: } else {
743: push @{ $Apache::response::foilgroup{'names'} }, $name;
744: $Apache::response::foilgroup{"$name.value"} = $value;
745: $Apache::response::foilgroup{"$name.text"} = $text;
746: $Apache::response::foilgroup{"$name.location"} = $location;
747: }
748: }
749: }
750: if ($target eq 'edit') {
751: $result.= &Apache::edit::tag_end($target,$token,'');
752: }
753: return $result;
754: }
755:
756: sub start_drawoptionlist {
757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
758: if ($target !~ /^(?:meta|answer|modified|edit)$/) {
759: return $token->[4];
760: }
761: }
762:
763: sub end_drawoptionlist {
764: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
765: if ($target !~ /^(?:meta|answer|modified|edit)$/) {
766: return $token->[2];
767: }
768: }
769:
770: sub insert_foil {
771: return '
772: <foil name="" value="unused">
773: <startouttext />
774: <endouttext />
775: </foil>';
776: }
777:
778: sub insert_drawoptionlist {
779: return '<drawoptionlist />';
780: }
781: 1;
782: __END__
783:
784: =head1 NAME
785:
786: Apache::optionresponse.pm;
787:
788: =head1 SYNOPSIS
789:
790: Handles tags associated with showing a list of
791: options.
792:
793: This is part of the LearningOnline Network with CAPA project
794: described at http://www.lon-capa.org.
795:
796: =head1 HANDLER SUBROUTINE
797:
798: start_optionresponse()
799:
800: =head1 OTHER SUBROUTINES
801:
802: =over
803:
804: =item end_optionresponse()
805:
806: =item start_foilgroup()
807:
808: =item end_foilgroup()
809:
810: =item getfoilcounts()
811:
812: =item displayanswers()
813:
814: =item check_for_invalid()
815:
816: =item displayfoils()
817:
818: =item optionlist_correction()
819:
820: =item webbubbles()
821:
822: =item bubbles()
823:
824: =item start_conceptgroup()
825:
826: =item end_conceptgroup()
827:
828: =item insert_conceptgroup()
829:
830: =item start_foil()
831:
832: =item end_foil()
833:
834: =item start_drawoptionlist()
835:
836: =item end_drawoptionlist()
837:
838: =item insert_foil()
839:
840: =item insert_drawoptionlist()
841:
842: =back
843:
844: =cut
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