1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.147 2010/12/19 04:24:29 raeburn 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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27:
28:
29:
30: package Apache::radiobuttonresponse;
31: use strict;
32: use HTML::Entities();
33: use Apache::lonlocal;
34: use Apache::lonnet;
35: use Apache::response;
36:
37: my $default_bubbles_per_line = 10;
38:
39:
40: BEGIN {
41: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
42: }
43:
44: sub bubble_line_count {
45: my ($numfoils, $bubbles_per_line) = @_;
46: my $bubble_lines;
47: $bubble_lines = int($numfoils / $bubbles_per_line);
48: if (($numfoils % $bubbles_per_line) != 0) {
49: $bubble_lines++;
50: }
51: return $bubble_lines;
52:
53: }
54:
55:
56: sub start_radiobuttonresponse {
57: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
58: my $result;
59:
60: #when in a radiobutton response use these
61: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
62: push (@Apache::lonxml::namespace,'radiobuttonresponse');
63: my $id = &Apache::response::start_response($parstack,$safeeval);
64:
65: %Apache::hint::radiobutton=();
66: undef(%Apache::response::foilnames);
67: if ($target eq 'meta') {
68: $result=&Apache::response::meta_package_write('radiobuttonresponse');
69: } elsif ($target eq 'edit' ) {
70: $result.=&Apache::edit::start_table($token)
71: .'<tr><td>'.&Apache::lonxml::description($token)
72: .&Apache::loncommon::help_open_topic('Radio_Response_Problems')
73: .'</td>'
74: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
75: .&Apache::edit::deletelist($target,$token)
76: .'</span></td>'
77: .'<td> '.&Apache::edit::end_row()
78: .&Apache::edit::start_spanning_row();
79: $result.=
80: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
81: $token,'4').' 'x 3 .
82: &Apache::edit::select_arg('Randomize Foil Order:','randomize',
83: ['yes','no'],$token).' 'x 3 .
84: &Apache::edit::select_arg('Display Direction:','direction',
85: ['vertical','horizontal'],$token).
86: &Apache::edit::end_row().
87: &Apache::edit::start_spanning_row()."\n";
88: } elsif ($target eq 'modified') {
89: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
90: $safeeval,'max',
91: 'randomize','direction');
92: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
93: } elsif ($target eq 'tex') {
94: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
95: undef,0);
96: if ($type eq '1') {
97: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
98: } elsif ($type eq 'A') {
99: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
100: } elsif ($type eq 'a') {
101: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
102: } elsif ($type eq 'i') {
103: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
104: } else {
105: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
106: }
107: if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
108: $result .= '\begin{itemize}';
109: } else {
110: $result .= '\begin{enumerate}';
111: }
112: } elsif ($target eq 'analyze') {
113: my $part_id="$Apache::inputtags::part.$id";
114: $Apache::lonhomework::analyze{"$part_id.type"} = 'radiobuttonresponse';
115: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
116: }
117: return $result;
118: }
119:
120: sub end_radiobuttonresponse {
121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
122: my $result;
123: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
124: if ($target eq 'tex' ) {
125: if($env{'form.pdfFormFields'} eq 'yes' and $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
126: $result .= '\end{itemize}';
127: } else {
128: $result .= '\end{enumerate}';
129: }
130: }
131: &Apache::response::end_response;
132: pop @Apache::lonxml::namespace;
133: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
134: undef(%Apache::response::foilnames);
135: return $result;
136: }
137:
138: %Apache::response::foilgroup=();
139: sub start_foilgroup {
140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
141: my $result;
142: %Apache::response::foilgroup=();
143: $Apache::radiobuttonresponse::conceptgroup=0;
144: &Apache::response::pushrandomnumber(undef,$target);
145: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
146: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
147: }
148: return $result;
149: }
150:
151: sub storesurvey {
152: my ($style) = @_;
153: if ( !&Apache::response::submitted() ) { return ''; }
154: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
155: &Apache::lonxml::debug("Here I am!:$response:");
156: if ( $response !~ /[0-9]+/) { return ''; }
157: my $part = $Apache::inputtags::part;
158: my $id = $Apache::inputtags::response['-1'];
159: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
160: my %responsehash;
161: $responsehash{$whichfoils[$response]}=$response;
162: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
163: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
164: $responsestr;
165: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
166: my $ad;
167: if ($style eq 'anonsurvey') {
168: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
169: } elsif ($style eq 'anonsurveycred') {
170: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
171: } elsif ($style eq 'surveycred') {
172: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
173: } else {
174: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
175: }
176: &Apache::response::handle_previous(\%previous,$ad);
177: &Apache::lonxml::debug("submitted a $response<br />\n");
178: return '';
179: }
180:
181:
182: sub grade_response {
183: my ($answer, $whichfoils, $bubbles_per_line)=@_;
184:
185: if ( !&Apache::response::submitted() ) { return; }
186: my $response;
187:
188: if ($env{'form.submitted'} eq 'scantron') {
189: $response = &Apache::response::getresponse(1,undef,
190: &bubble_line_count(scalar(@{ $whichfoils}),
191: $bubbles_per_line),
192: $bubbles_per_line);
193:
194: } else {
195: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
196: }
197:
198:
199: if ( $response !~ /[0-9]+/) { return; }
200: my $part=$Apache::inputtags::part;
201: my $id = $Apache::inputtags::response['-1'];
202: my %responsehash;
203: $responsehash{$whichfoils->[$response]}=$response;
204: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
205: my %previous=&Apache::response::check_for_previous($responsestr,
206: $part,$id);
207: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
208: $responsestr;
209: &Apache::lonxml::debug("submitted a $response<br />\n");
210: my $ad;
211: if ($response == $answer) {
212: $ad='EXACT_ANS';
213: } else {
214: $ad='INCORRECT';
215: }
216: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
217: &Apache::response::handle_previous(\%previous,$ad);
218: }
219:
220: sub end_foilgroup {
221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
222:
223: my $result;
224: my $bubble_lines;
225: my $bubbles_per_line;
226: my $answer_count;
227: my $id = $Apache::inputtags::response['-1'];
228: my $part = $Apache::inputtags::part;
229: $bubbles_per_line =
230: &Apache::response::get_response_param($Apache::inputtags::part."_$id",
231: 'numbubbles',
232: $default_bubbles_per_line);
233:
234:
235: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
236: $target eq 'tex' || $target eq 'analyze') {
237: my $style = $Apache::lonhomework::type;
238: my $direction = &Apache::lonxml::get_param('direction',$parstack,
239: $safeeval,'-2');
240: if ( (($style eq 'survey') || ($style eq 'surveycred') ||
241: ($style eq 'anonsurvey') || ($style eq 'anonsurveycred'))
242: && ($target ne 'analyze')) {
243: if ($target eq 'web' || $target eq 'tex') {
244: $result=&displayallfoils($direction, $target);
245: } elsif ( $target eq 'answer' ) {
246: $result=&displayallanswers();
247: } elsif ( $target eq 'grade' ) {
248: $result=&storesurvey($style);
249: }
250: $answer_count = scalar(@{$Apache::response::foilgroup{'names'}});
251:
252: } else {
253:
254: my $name;
255: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
256: '-2');
257: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
258: $safeeval,'-2');
259: my ($answer, @shown) = &whichfoils($max, $randomize);
260: $answer_count = scalar(@shown);
261:
262: if ($target eq 'web' || $target eq 'tex') {
263: $result=&displayfoils($target,
264: $answer, \@shown,
265: $direction,
266: $bubbles_per_line);
267: } elsif ($target eq 'answer' ) {
268: $result=&displayanswers($answer, \@shown, $bubbles_per_line);
269: } elsif ( $target eq 'grade') {
270: &grade_response($answer, \@shown, $bubbles_per_line);
271: } elsif ( $target eq 'analyze') {
272: my $bubble_lines = &bubble_line_count($answer_count,
273: $bubbles_per_line);
274: &Apache::response::analyze_store_foilgroup(\@shown,
275: ['text','value','location']);
276: my $part_id="$part.$id";
277: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
278: ('true','false'));
279:
280: }
281: }
282: $Apache::lonxml::post_evaluate=0;
283: }
284: if ($target eq 'web') {
285: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
286: [\%Apache::response::foilgroup]);
287: }
288: &Apache::response::poprandomnumber();
289: $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
290: &Apache::lonxml::increment_counter($bubble_lines,
291: "$part.$id");
292: if ($target eq 'analyze') {
293: &Apache::lonhomework::set_bubble_lines();
294: }
295: return $result;
296: }
297:
298: sub getfoilcounts {
299: my @names;
300: my $truecnt=0;
301: my $falsecnt=0;
302: my $name;
303: if ( $Apache::response::foilgroup{'names'} ) {
304: @names= @{ $Apache::response::foilgroup{'names'} };
305: }
306: foreach $name (@names) {
307: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
308: $truecnt++;
309: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
310: $falsecnt++;
311: }
312: }
313: return ($truecnt,$falsecnt);
314: }
315:
316: sub format_prior_answer {
317: my ($mode,$answer,$other_data) = @_;
318: my $foil_data = $other_data->[0];
319: my %response = &Apache::lonnet::str2hash($answer);
320: my ($name) = keys(%response);
321: return '<span class="LC_prior_radiobutton">'.
322: $foil_data->{$name.'.text'}.'</span>';
323:
324: }
325:
326: sub displayallfoils {
327: my ($direction, $target)=@_;
328: my $result;
329: &Apache::lonxml::debug("survey style display");
330: my @names;
331: if ( $Apache::response::foilgroup{'names'} ) {
332: @names= @{ $Apache::response::foilgroup{'names'} };
333: }
334:
335: my $temp=0;
336: my $i =0;
337: my $id=$Apache::inputtags::response['-1'];
338: my $part=$Apache::inputtags::part;
339: my $lastresponse;
340: my ($lastresponse,$newvariation,$showanswer);
341: if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
342: ($Apache::lonhomework::type eq 'randomizetry')) &&
343: ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
344: if ($env{'form.'.$part.'.rndseed'} ne
345: $Apache::lonhomework::history{"resource.$part.rndseed"}) {
346: $newvariation = 1;
347: }
348: }
349: $showanswer = &Apache::response::show_answer();
350: unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'})) ||
351: ($newvariation && !$showanswer)) {
352: $lastresponse =
353: $Apache::lonhomework::history{"resource.$part.$id.submission"};
354: }
355: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
356: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
357: if ($showanswer) {
358: foreach my $name (@names) {
359: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
360: if (($direction eq 'horizontal') && ($target ne 'tex')) {
361: $result.="<td>";
362: } else {
363: if ($target eq 'tex') {
364: $result .= '\item \vskip -2mm ';
365: } else {
366: $result.="<br />";
367: }
368: }
369: if (defined($lastresponse{$name})) {
370: if ($target eq 'tex') {
371: $result .= '}';
372: } else {
373: $result.='<b>';
374: }
375: }
376: $result .= $Apache::response::foilgroup{$name.'.text'};
377: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
378: $result.='</b>';
379: }
380: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
381: }
382: }
383: } else {
384: foreach my $name (@names) {
385: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
386: if ($direction eq 'horizontal') {
387: $result.="<td>";
388: } else {
389: if ($target eq 'tex') {
390: if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
391: my $fieldname = $env{'request.symb'}.'&part_'. $Apache::inputtags::part
392: .'&radiobuttonresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'];
393: $result .= '\item[{'.&Apache::lonxml::print_pdf_radiobutton($fieldname,$temp).'}]'
394: .$Apache::response::foilgroup{$name.'.text'}."\n";
395: } else {
396: $result .= '\item \vskip -2mm ';
397: }
398: } else {
399: $result.="<br />";
400: }
401: }
402: if ($target eq 'tex') {
403: if($env{'form.pdfFormFields'} ne 'yes' or $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
404: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
405: }
406: $i++;
407: } else {
408: $result .= '<label>';
409: $result.="<input
410: onchange=\"javascript:setSubmittedPart('$part');\"
411: type=\"radio\"
412: name=\"HWVAL_$Apache::inputtags::response['-1']\"
413: value=\"$temp\"";
414:
415: if (defined($lastresponse{$name})) { $result .= ' checked="checked"'; }
416: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
417: '</label>';
418: }
419: $temp++;
420: if ($target ne 'tex') {
421: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
422: } else {
423: $result.='\vskip 0 mm ';
424: }
425: }
426: }
427: }
428:
429: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
430: return $result;
431: }
432:
433:
434: sub whichfoils {
435: my ($max,$randomize)=@_;
436:
437: my @truelist;
438: my @falselist;
439: my @whichfalse =();
440: my ($truecnt,$falsecnt) = &getfoilcounts();
441: my $count=0;
442: # we will add in 1 of the true statements
443: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
444: my $answer=int(&Math::Random::random_uniform() * ($count));
445: &Apache::lonxml::debug("Count is $count, $answer is $answer");
446: my @names;
447: if ( $Apache::response::foilgroup{'names'} ) {
448: @names= @{ $Apache::response::foilgroup{'names'} };
449: }
450: if (&Apache::response::showallfoils()) {
451: @whichfalse=@names;
452: } elsif ($randomize eq 'no') {
453: &Apache::lonxml::debug("No randomization");
454: my $havetrue=0;
455: foreach my $name (@names) {
456: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
457: if (!$havetrue ) {
458: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
459: }
460: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
461: push (@whichfalse,$name);
462: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
463: } else {
464: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
465: }
466: }
467: if ((!$havetrue) &&
468: ($Apache::lonhomework::type ne 'survey') &&
469: ($Apache::lonhomework::type ne 'surveycred') &&
470: ($Apache::lonhomework::type ne 'anonsurvey') &&
471: ($Apache::lonhomework::type ne 'anonsurveycred')) {
472: &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
473: }
474: } else {
475: my $current=0;
476: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
477: my (%top,%bottom);
478: #first find out where everyone wants to be
479: foreach my $name (@names) {
480: $current++;
481: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
482: push (@truelist,$name);
483: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
484: $top{$name}=$current;
485: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
486: $bottom{$name}=$current;
487: }
488: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
489: push (@falselist,$name);
490: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
491: $top{$name}=$current;
492: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
493: $bottom{$name}=$current;
494: }
495: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
496: } else {
497: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
498: }
499: }
500: #pick a true statement
501: my $notrue=0;
502: if (scalar(@truelist) == 0) { $notrue=1; }
503: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
504: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
505: my (@toplist, @bottomlist);
506: my $topcount=0;
507: my $bottomcount=0;
508: # assign everyone to either toplist/bottomlist or whichfalse
509: # which false is randomized, toplist bottomlist are in order
510: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
511: &Apache::lonxml::debug("Have $#whichfalse max is $max");
512: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
513: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
514: $afalse=splice(@falselist,$afalse,1);
515: &Apache::lonxml::debug("Picked $afalse");
516: &Apache::lonhomework::showhash(('names'=>\@names));
517: &Apache::lonhomework::showhash(%top);
518: if ($top{$afalse}) {
519: $toplist[$top{$afalse}]=$afalse;
520: $topcount++;
521: } elsif ($bottom{$afalse}) {
522: $bottomlist[$bottom{$afalse}]=$afalse;
523: $bottomcount++;
524: } else {
525: push (@whichfalse,$afalse);
526: }
527: }
528: &Apache::lonxml::debug("Answer wants $answer");
529: my $truename=$truelist[$whichtrue];
530: my $dosplice=1;
531: if (($notrue) &&
532: ($Apache::lonhomework::type ne 'survey') &&
533: ($Apache::lonhomework::type ne 'surveycred') &&
534: ($Apache::lonhomework::type ne 'anonsurvey') &&
535: ($Apache::lonhomework::type ne 'anonsurveycred')) {
536: $dosplice=0;
537: &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
538: }
539: #insert the true statement, keeping track of where it wants to be
540: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
541: $toplist[$top{$truename}]=$truename;
542: $answer=-1;
543: foreach my $top (reverse(@toplist)) {
544: if ($top) { $answer++;}
545: if ($top eq $truename) { last; }
546: }
547: $dosplice=0;
548: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
549: $bottomlist[$bottom{$truename}]=$truename;
550: $answer=-1;
551: foreach my $bot (@bottomlist) {
552: if ($bot) { $answer++;}
553: if ($bot eq $truename) { last; }
554: }
555: $answer+=$topcount+$#whichfalse+1;
556: $dosplice=0;
557: } else {
558: if ($topcount>0 || $bottomcount>0) {
559: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
560: + $topcount;
561: }
562: }
563: &Apache::lonxml::debug("Answer now wants $answer");
564: #add the top items to the top, bottom items to the bottom
565: for (my $i=0;$i<=$#toplist;$i++) {
566: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
567: }
568: for (my $i=0;$i<=$#bottomlist;$i++) {
569: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
570: }
571: #if the true statement is randomized insert it into the list
572: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
573: }
574: &Apache::lonxml::debug("Answer is $answer");
575: return ($answer,@whichfalse);
576: }
577:
578: sub displayfoils {
579: my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
580: my $result;
581:
582: my $part=$Apache::inputtags::part;
583: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
584: if ( ($target ne 'tex') &&
585: &Apache::response::show_answer() ) {
586: if ($direction eq 'horizontal') {
587: if ($target ne 'tex') {
588: $result.='<table><tr>';
589: }
590: }
591: foreach my $name (@{ $whichfoils }) {
592: if ($direction eq 'horizontal') {
593: if ($target ne 'tex') { $result.='<td>'; }
594: }
595: if ($target ne 'tex') {
596: $result.="<br />";
597: } else {
598: $result.='\item \vskip -2 mm ';
599: }
600: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
601: if ($target ne 'tex') {
602: $result.=&mt('Correct:').'<b>';
603: } else {
604: $result.=&mt('Correct:').' \textbf{';
605: }
606: } else {
607: $result.=&mt('Incorrect:');
608: }
609: if ($target eq 'web') { $result.="<label>"; }
610: $result.=$Apache::response::foilgroup{$name.'.text'};
611: if ($target eq 'web') { $result.="</label>"; }
612: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
613: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
614: }
615: if ($direction eq 'horizontal') {
616: if ($target ne 'tex') { $result.='</td>'; }
617: }
618: }
619: if ($direction eq 'horizontal') {
620: if ($target ne 'tex') {
621: $result.='</tr></table>';
622: }
623: }
624: } else {
625: my @alphabet = ('A'..'Z');
626: my $i = 0;
627: my $bubble_number = 0;
628: my $line = 0;
629: my $temp=0;
630: my $id=$Apache::inputtags::response['-1'];
631: my $part=$Apache::inputtags::part;
632: my ($lastresponse,$newvariation);
633: if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
634: ($Apache::lonhomework::type eq 'randomizetry')) &&
635: ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
636: if ($env{'form.'.$part.'.rndseed'} ne
637: $Apache::lonhomework::history{"resource.$part.rndseed"}) {
638: $newvariation = 1;
639: }
640: }
641: unless ($newvariation) {
642: $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
643: }
644: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
645: if ($target ne 'tex' && $direction eq 'horizontal') {
646: $result.="<table><tr>";
647: }
648: foreach my $name (@{ $whichfoils }) {
649: if ($target ne 'tex') {
650: if ($direction eq 'horizontal') {
651: $result.="<td>";
652: } else {
653: $result.="<br />";
654: }
655: }
656: if ($target ne 'tex') {
657: $result.= '<label>';
658: $result.=
659: "<input type=\"radio\"
660: onchange=\"javascript:setSubmittedPart('$part');\"
661: name=\"HWVAL_$Apache::inputtags::response['-1']\"
662: value=\"$temp\"";
663: if (defined($lastresponse{$name})) { $result .= ' checked="checked"'; }
664: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
665: } else {
666: if ($Apache::lonhomework::type eq 'exam') {
667: if($bubble_number >= $bubbles_per_line) {
668: $line++;
669: $i = 0;
670: $bubble_number = 0;
671: $result.='\item[\textbf{'.($Apache::lonxml::counter+$line).'}.]';
672: }
673: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
674: $i++;
675: $bubble_number++;
676: } else {
677: if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
678: my $fieldname = $env{'request.symb'}.'&part_'. $Apache::inputtags::part
679: .'&radiobuttonresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'];
680: $result .= '\item[{'.&Apache::lonxml::print_pdf_radiobutton($fieldname,$temp).'}]'
681: .$Apache::response::foilgroup{$name.'.text'}."\n";
682: } else {
683: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
684: }
685: }
686: }
687: if ($target ne 'tex' && $direction eq 'horizontal') {
688: $result.="</td>";
689: }
690: $temp++;
691: }
692: if ($target ne 'tex' && $direction eq 'horizontal') {
693: $result.="</tr></table>";
694: }
695: }
696: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
697: return $result;
698: }
699:
700: sub displayallanswers {
701: my @names;
702: if ( $Apache::response::foilgroup{'names'} ) {
703: @names= @{ $Apache::response::foilgroup{'names'} };
704: }
705: my $result=&Apache::response::answer_header('radiobuttonresponse');
706: foreach my $name (@names) {
707: $result.=&Apache::response::answer_part('radiobuttonresponse',
708: $Apache::response::foilgroup{$name.'.value'});
709: }
710: $result.=&Apache::response::answer_footer('radiobuttonresponse');
711: return $result;
712: }
713:
714: sub displayanswers {
715: my ($answer, $whichopt, $bubbles_per_line)=@_;
716: my $result;
717:
718: if ($Apache::lonhomework::type eq 'exam') {
719: my $line = int($answer/$bubbles_per_line);
720: my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
721: $result .= &Apache::response::answer_header('radiobuttonresponse',
722: $line);
723: $result .= &Apache::response::answer_part('radiobuttonresponse',
724: $correct);
725: } else {
726: $result .= &Apache::response::answer_header('radiobuttonresponse');
727: }
728: foreach my $name (@{ $whichopt }) {
729: $result.=&Apache::response::answer_part('radiobuttonresponse',
730: $Apache::response::foilgroup{$name.'.value'});
731: }
732: $result.=&Apache::response::answer_footer('radiobuttonresponse');
733: return $result;
734: }
735:
736: sub start_conceptgroup {
737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
738: $Apache::radiobuttonresponse::conceptgroup=1;
739: %Apache::response::conceptgroup=();
740: my $result;
741: if ($target eq 'edit') {
742: $result.=&Apache::edit::tag_start($target,$token);
743: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
744: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
745: } elsif ($target eq 'modified') {
746: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
747: $safeeval,'concept');
748: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
749: }
750: return $result;
751: }
752:
753: sub end_conceptgroup {
754: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
755: $Apache::radiobuttonresponse::conceptgroup=0;
756: my $result;
757: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
758: $target eq 'tex' || $target eq 'analyze') {
759: &Apache::response::pick_foil_for_concept($target,
760: ['value','text','location'],
761: \%Apache::hint::radiobutton,
762: $parstack,$safeeval);
763: } elsif ($target eq 'edit') {
764: $result=&Apache::edit::end_table();
765: }
766: return $result;
767: }
768:
769: sub insert_conceptgroup {
770: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
771: return $result;
772: }
773:
774: sub start_foil {
775: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
776: my $result='';
777: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
778: &Apache::lonxml::startredirection;
779: if ($target eq 'analyze') {
780: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
781: }
782: } elsif ($target eq 'edit') {
783: $result=&Apache::edit::tag_start($target,$token);
784: $result.=&Apache::edit::text_arg('Name:','name',$token);
785: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
786: ['unused','true','false'],
787: $token);
788: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
789: $safeeval,'-3');
790: if ($randomize ne 'no') {
791: $result.=&Apache::edit::select_arg('Location:','location',
792: ['random','top','bottom'],$token);
793: }
794: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
795: } elsif ($target eq 'modified') {
796: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
797: $safeeval,'value','name',
798: 'location');
799: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
800: }
801: return $result;
802: }
803:
804: sub end_foil {
805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
806: my $text='';
807: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
808: $text=&Apache::lonxml::endredirection;
809: }
810: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
811: || $target eq 'tex' || $target eq 'analyze') {
812: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
813: if ($value ne 'unused') {
814: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
815: if ($name eq "") {
816: &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
817: $name=$Apache::lonxml::curdepth;
818: }
819: if (defined($Apache::response::foilnames{$name})) {
820: &Apache::lonxml::error(&mt('Foil name [_1] appears more than once. Foil names need to be unique.','<b><tt>'.$name.'</tt></b>'));
821: }
822: $Apache::response::foilnames{$name}++;
823: my $location =&Apache::lonxml::get_param('location',$parstack,
824: $safeeval);
825: if ( $Apache::radiobuttonresponse::conceptgroup
826: && !&Apache::response::showallfoils() ) {
827: push @{ $Apache::response::conceptgroup{'names'} }, $name;
828: $Apache::response::conceptgroup{"$name.value"} = $value;
829: $Apache::response::conceptgroup{"$name.text"} = $text;
830: $Apache::response::conceptgroup{"$name.location"} = $location;
831: } else {
832: push @{ $Apache::response::foilgroup{'names'} }, $name;
833: $Apache::response::foilgroup{"$name.value"} = $value;
834: $Apache::response::foilgroup{"$name.text"} = $text;
835: $Apache::response::foilgroup{"$name.location"} = $location;
836: }
837: }
838: }
839: return '';
840: }
841:
842: sub insert_foil {
843: return '
844: <foil name="" value="unused">
845: <startouttext />
846: <endouttext />
847: </foil>';
848: }
849: 1;
850: __END__
851:
852:
853:
854: =head1 NAME
855:
856: Apache::radiobuttonresponse
857:
858: =head1 SYNOPSIS
859:
860: Handles multiple-choice style responses.
861:
862: This is part of the LearningOnline Network with CAPA project
863: described at http://www.lon-capa.org.
864:
865: =head1 SUBROUTINES
866:
867: =over
868:
869: =item start_radiobuttonresponse()
870:
871: =item bubble_line_count()
872:
873: =item end_radiobuttonresponse()
874:
875: =item start_foilgroup()
876:
877: =item storesurvey()
878:
879: =item grade_response()
880:
881: =item end_foilgroup()
882:
883: =item getfoilcounts()
884:
885: =item format_prior_answer()
886:
887: =item displayallfoils()
888:
889: =item &whichfoils($max,$randomize)
890:
891: Randomizes the list of foils.
892: Respects
893: - each foils desire to be randomized
894: - the existance of Concept groups of foils (select 1 foil from each)
895: - and selects a single correct statement from all possilble true statments
896: - and limits it to a toal of $max foils
897:
898: WARNING: this routine uses the random number generator, it should only
899: be called once per target, otherwise it can cause randomness changes in
900: homework problems.
901:
902: Arguments
903: $max - maximum number of foils to select (including the true one)
904: (so a max of 5 is: 1 true, 4 false)
905:
906: $randomize - whether to randomize the listing of foils, by default
907: will randomize, only if randomize is 'no' will it not
908:
909: Returns
910: $answer - location in the array of the correct answer
911: @foils - array of foil names in to display order
912:
913: =item displayfoils()
914:
915: =item displayallanswers()
916:
917: =item displayanswers()
918:
919: =item start_conceptgroup()
920:
921: =item end_conceptgroup()
922:
923: =item insert_conceptgroup()
924:
925: =item start_foil()
926:
927: =item end_foil()
928:
929: =item insert_foil()
930:
931: =back
932:
933: =cut
934:
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