1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.146 2010/06/14 02:08:28 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: $Apache::radiobuttonresponse::conceptgroup=0;
144: &Apache::response::pushrandomnumber();
145: if ($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 $lastresponse;
340: unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'}))) {
341: $lastresponse =
342: $Apache::lonhomework::history{"resource.$part.$id.submission"};
343: }
344: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
345: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
346: if (&Apache::response::show_answer() ) {
347: foreach my $name (@names) {
348: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
349: if (($direction eq 'horizontal') && ($target ne 'tex')) {
350: $result.="<td>";
351: } else {
352: if ($target eq 'tex') {
353: $result .= '\item \vskip -2mm ';
354: } else {
355: $result.="<br />";
356: }
357: }
358: if (defined($lastresponse{$name})) {
359: if ($target eq 'tex') {
360: $result .= '}';
361: } else {
362: $result.='<b>';
363: }
364: }
365: $result .= $Apache::response::foilgroup{$name.'.text'};
366: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
367: $result.='</b>';
368: }
369: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
370: }
371: }
372: } else {
373: foreach my $name (@names) {
374: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
375: if ($direction eq 'horizontal') {
376: $result.="<td>";
377: } else {
378: if ($target eq 'tex') {
379: if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
380: my $fieldname = $env{'request.symb'}.'&part_'. $Apache::inputtags::part
381: .'&radiobuttonresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'];
382: $result .= '\item[{'.&Apache::lonxml::print_pdf_radiobutton($fieldname,$temp).'}]'
383: .$Apache::response::foilgroup{$name.'.text'}."\n";
384: } else {
385: $result .= '\item \vskip -2mm ';
386: }
387: } else {
388: $result.="<br />";
389: }
390: }
391: if ($target eq 'tex') {
392: if($env{'form.pdfFormFields'} ne 'yes' or $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
393: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
394: }
395: $i++;
396: } else {
397: $result .= '<label>';
398: $result.="<input
399: onchange=\"javascript:setSubmittedPart('$part');\"
400: type=\"radio\"
401: name=\"HWVAL_$Apache::inputtags::response['-1']\"
402: value=\"$temp\"";
403: if (defined($lastresponse{$name})) { $result .= ' checked="checked"'; }
404: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
405: '</label>';
406: }
407: $temp++;
408: if ($target ne 'tex') {
409: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
410: } else {
411: $result.='\vskip 0 mm ';
412: }
413: }
414: }
415: }
416:
417: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
418: return $result;
419: }
420:
421:
422: sub whichfoils {
423: my ($max,$randomize)=@_;
424:
425: my @truelist;
426: my @falselist;
427: my @whichfalse =();
428: my ($truecnt,$falsecnt) = &getfoilcounts();
429: my $count=0;
430: # we will add in 1 of the true statements
431: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
432: my $answer=int(&Math::Random::random_uniform() * ($count));
433: &Apache::lonxml::debug("Count is $count, $answer is $answer");
434: my @names;
435: if ( $Apache::response::foilgroup{'names'} ) {
436: @names= @{ $Apache::response::foilgroup{'names'} };
437: }
438: if (&Apache::response::showallfoils()) {
439: @whichfalse=@names;
440: } elsif ($randomize eq 'no') {
441: &Apache::lonxml::debug("No randomization");
442: my $havetrue=0;
443: foreach my $name (@names) {
444: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
445: if (!$havetrue ) {
446: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
447: }
448: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
449: push (@whichfalse,$name);
450: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
451: } else {
452: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
453: }
454: }
455: if ((!$havetrue) &&
456: ($Apache::lonhomework::type ne 'survey') &&
457: ($Apache::lonhomework::type ne 'surveycred') &&
458: ($Apache::lonhomework::type ne 'anonsurvey') &&
459: ($Apache::lonhomework::type ne 'anonsurveycred')) {
460: &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
461: }
462: } else {
463: my $current=0;
464: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
465: my (%top,%bottom);
466: #first find out where everyone wants to be
467: foreach my $name (@names) {
468: $current++;
469: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
470: push (@truelist,$name);
471: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
472: $top{$name}=$current;
473: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
474: $bottom{$name}=$current;
475: }
476: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
477: push (@falselist,$name);
478: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
479: $top{$name}=$current;
480: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
481: $bottom{$name}=$current;
482: }
483: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
484: } else {
485: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
486: }
487: }
488: #pick a true statement
489: my $notrue=0;
490: if (scalar(@truelist) == 0) { $notrue=1; }
491: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
492: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
493: my (@toplist, @bottomlist);
494: my $topcount=0;
495: my $bottomcount=0;
496: # assign everyone to either toplist/bottomlist or whichfalse
497: # which false is randomized, toplist bottomlist are in order
498: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
499: &Apache::lonxml::debug("Have $#whichfalse max is $max");
500: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
501: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
502: $afalse=splice(@falselist,$afalse,1);
503: &Apache::lonxml::debug("Picked $afalse");
504: &Apache::lonhomework::showhash(('names'=>\@names));
505: &Apache::lonhomework::showhash(%top);
506: if ($top{$afalse}) {
507: $toplist[$top{$afalse}]=$afalse;
508: $topcount++;
509: } elsif ($bottom{$afalse}) {
510: $bottomlist[$bottom{$afalse}]=$afalse;
511: $bottomcount++;
512: } else {
513: push (@whichfalse,$afalse);
514: }
515: }
516: &Apache::lonxml::debug("Answer wants $answer");
517: my $truename=$truelist[$whichtrue];
518: my $dosplice=1;
519: if (($notrue) &&
520: ($Apache::lonhomework::type ne 'survey') &&
521: ($Apache::lonhomework::type ne 'surveycred') &&
522: ($Apache::lonhomework::type ne 'anonsurvey') &&
523: ($Apache::lonhomework::type ne 'anonsurveycred')) {
524: $dosplice=0;
525: &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
526: }
527: #insert the true statement, keeping track of where it wants to be
528: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
529: $toplist[$top{$truename}]=$truename;
530: $answer=-1;
531: foreach my $top (reverse(@toplist)) {
532: if ($top) { $answer++;}
533: if ($top eq $truename) { last; }
534: }
535: $dosplice=0;
536: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
537: $bottomlist[$bottom{$truename}]=$truename;
538: $answer=-1;
539: foreach my $bot (@bottomlist) {
540: if ($bot) { $answer++;}
541: if ($bot eq $truename) { last; }
542: }
543: $answer+=$topcount+$#whichfalse+1;
544: $dosplice=0;
545: } else {
546: if ($topcount>0 || $bottomcount>0) {
547: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
548: + $topcount;
549: }
550: }
551: &Apache::lonxml::debug("Answer now wants $answer");
552: #add the top items to the top, bottom items to the bottom
553: for (my $i=0;$i<=$#toplist;$i++) {
554: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
555: }
556: for (my $i=0;$i<=$#bottomlist;$i++) {
557: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
558: }
559: #if the true statement is randomized insert it into the list
560: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
561: }
562: &Apache::lonxml::debug("Answer is $answer");
563: return ($answer,@whichfalse);
564: }
565:
566: sub displayfoils {
567: my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
568: my $result;
569:
570: my $part=$Apache::inputtags::part;
571: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
572: if ( ($target ne 'tex') &&
573: &Apache::response::show_answer() ) {
574: if ($direction eq 'horizontal') {
575: if ($target ne 'tex') {
576: $result.='<table><tr>';
577: }
578: }
579: foreach my $name (@{ $whichfoils }) {
580: if ($direction eq 'horizontal') {
581: if ($target ne 'tex') { $result.='<td>'; }
582: }
583: if ($target ne 'tex') {
584: $result.="<br />";
585: } else {
586: $result.='\item \vskip -2 mm ';
587: }
588: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
589: if ($target ne 'tex') {
590: $result.=&mt('Correct:').'<b>';
591: } else {
592: $result.=&mt('Correct:').' \textbf{';
593: }
594: } else {
595: $result.=&mt('Incorrect:');
596: }
597: if ($target eq 'web') { $result.="<label>"; }
598: $result.=$Apache::response::foilgroup{$name.'.text'};
599: if ($target eq 'web') { $result.="</label>"; }
600: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
601: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
602: }
603: if ($direction eq 'horizontal') {
604: if ($target ne 'tex') { $result.='</td>'; }
605: }
606: }
607: if ($direction eq 'horizontal') {
608: if ($target ne 'tex') {
609: $result.='</tr></table>';
610: }
611: }
612: } else {
613: my @alphabet = ('A'..'Z');
614: my $i = 0;
615: my $bubble_number = 0;
616: my $line = 0;
617: my $temp=0;
618: my $id=$Apache::inputtags::response['-1'];
619: my $part=$Apache::inputtags::part;
620: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
621: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
622: if ($target ne 'tex' && $direction eq 'horizontal') {
623: $result.="<table><tr>";
624: }
625: foreach my $name (@{ $whichfoils }) {
626: if ($target ne 'tex') {
627: if ($direction eq 'horizontal') {
628: $result.="<td>";
629: } else {
630: $result.="<br />";
631: }
632: }
633: if ($target ne 'tex') {
634: $result.= '<label>';
635: $result.=
636: "<input type=\"radio\"
637: onchange=\"javascript:setSubmittedPart('$part');\"
638: name=\"HWVAL_$Apache::inputtags::response['-1']\"
639: value=\"$temp\"";
640: if (defined($lastresponse{$name})) { $result .= ' checked="checked"'; }
641: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
642: } else {
643: if ($Apache::lonhomework::type eq 'exam') {
644: if($bubble_number >= $bubbles_per_line) {
645: $line++;
646: $i = 0;
647: $bubble_number = 0;
648: $result.='\item[\textbf{'.($Apache::lonxml::counter+$line).'}.]';
649: }
650: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
651: $i++;
652: $bubble_number++;
653: } else {
654: if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
655: my $fieldname = $env{'request.symb'}.'&part_'. $Apache::inputtags::part
656: .'&radiobuttonresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'];
657: $result .= '\item[{'.&Apache::lonxml::print_pdf_radiobutton($fieldname,$temp).'}]'
658: .$Apache::response::foilgroup{$name.'.text'}."\n";
659: } else {
660: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
661: }
662: }
663: }
664: if ($target ne 'tex' && $direction eq 'horizontal') {
665: $result.="</td>";
666: }
667: $temp++;
668: }
669: if ($target ne 'tex' && $direction eq 'horizontal') {
670: $result.="</tr></table>";
671: }
672: }
673: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
674: return $result;
675: }
676:
677: sub displayallanswers {
678: my @names;
679: if ( $Apache::response::foilgroup{'names'} ) {
680: @names= @{ $Apache::response::foilgroup{'names'} };
681: }
682: my $result=&Apache::response::answer_header('radiobuttonresponse');
683: foreach my $name (@names) {
684: $result.=&Apache::response::answer_part('radiobuttonresponse',
685: $Apache::response::foilgroup{$name.'.value'});
686: }
687: $result.=&Apache::response::answer_footer('radiobuttonresponse');
688: return $result;
689: }
690:
691: sub displayanswers {
692: my ($answer, $whichopt, $bubbles_per_line)=@_;
693: my $result;
694:
695: if ($Apache::lonhomework::type eq 'exam') {
696: my $line = int($answer/$bubbles_per_line);
697: my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
698: $result .= &Apache::response::answer_header('radiobuttonresponse',
699: $line);
700: $result .= &Apache::response::answer_part('radiobuttonresponse',
701: $correct);
702: } else {
703: $result .= &Apache::response::answer_header('radiobuttonresponse');
704: }
705: foreach my $name (@{ $whichopt }) {
706: $result.=&Apache::response::answer_part('radiobuttonresponse',
707: $Apache::response::foilgroup{$name.'.value'});
708: }
709: $result.=&Apache::response::answer_footer('radiobuttonresponse');
710: return $result;
711: }
712:
713: sub start_conceptgroup {
714: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
715: $Apache::radiobuttonresponse::conceptgroup=1;
716: %Apache::response::conceptgroup=();
717: my $result;
718: if ($target eq 'edit') {
719: $result.=&Apache::edit::tag_start($target,$token);
720: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
721: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
722: } elsif ($target eq 'modified') {
723: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
724: $safeeval,'concept');
725: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
726: }
727: return $result;
728: }
729:
730: sub end_conceptgroup {
731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
732: $Apache::radiobuttonresponse::conceptgroup=0;
733: my $result;
734: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
735: $target eq 'tex' || $target eq 'analyze') {
736: &Apache::response::pick_foil_for_concept($target,
737: ['value','text','location'],
738: \%Apache::hint::radiobutton,
739: $parstack,$safeeval);
740: } elsif ($target eq 'edit') {
741: $result=&Apache::edit::end_table();
742: }
743: return $result;
744: }
745:
746: sub insert_conceptgroup {
747: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
748: return $result;
749: }
750:
751: sub start_foil {
752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
753: my $result='';
754: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
755: &Apache::lonxml::startredirection;
756: if ($target eq 'analyze') {
757: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
758: }
759: } elsif ($target eq 'edit') {
760: $result=&Apache::edit::tag_start($target,$token);
761: $result.=&Apache::edit::text_arg('Name:','name',$token);
762: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
763: ['unused','true','false'],
764: $token);
765: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
766: $safeeval,'-3');
767: if ($randomize ne 'no') {
768: $result.=&Apache::edit::select_arg('Location:','location',
769: ['random','top','bottom'],$token);
770: }
771: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
772: } elsif ($target eq 'modified') {
773: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
774: $safeeval,'value','name',
775: 'location');
776: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
777: }
778: return $result;
779: }
780:
781: sub end_foil {
782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
783: my $text='';
784: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
785: $text=&Apache::lonxml::endredirection;
786: }
787: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
788: || $target eq 'tex' || $target eq 'analyze') {
789: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
790: if ($value ne 'unused') {
791: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
792: if ($name eq "") {
793: &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
794: $name=$Apache::lonxml::curdepth;
795: }
796: if (defined($Apache::response::foilnames{$name})) {
797: &Apache::lonxml::error(&mt('Foil name [_1] appears more than once. Foil names need to be unique.','<b><tt>'.$name.'</tt></b>'));
798: }
799: $Apache::response::foilnames{$name}++;
800: my $location =&Apache::lonxml::get_param('location',$parstack,
801: $safeeval);
802: if ( $Apache::radiobuttonresponse::conceptgroup
803: && !&Apache::response::showallfoils() ) {
804: push @{ $Apache::response::conceptgroup{'names'} }, $name;
805: $Apache::response::conceptgroup{"$name.value"} = $value;
806: $Apache::response::conceptgroup{"$name.text"} = $text;
807: $Apache::response::conceptgroup{"$name.location"} = $location;
808: } else {
809: push @{ $Apache::response::foilgroup{'names'} }, $name;
810: $Apache::response::foilgroup{"$name.value"} = $value;
811: $Apache::response::foilgroup{"$name.text"} = $text;
812: $Apache::response::foilgroup{"$name.location"} = $location;
813: }
814: }
815: }
816: return '';
817: }
818:
819: sub insert_foil {
820: return '
821: <foil name="" value="unused">
822: <startouttext />
823: <endouttext />
824: </foil>';
825: }
826: 1;
827: __END__
828:
829:
830:
831: =head1 NAME
832:
833: Apache::radiobuttonresponse
834:
835: =head1 SYNOPSIS
836:
837: Handles multiple-choice style responses.
838:
839: This is part of the LearningOnline Network with CAPA project
840: described at http://www.lon-capa.org.
841:
842: =head1 SUBROUTINES
843:
844: =over
845:
846: =item start_radiobuttonresponse()
847:
848: =item bubble_line_count()
849:
850: =item end_radiobuttonresponse()
851:
852: =item start_foilgroup()
853:
854: =item storesurvey()
855:
856: =item grade_response()
857:
858: =item end_foilgroup()
859:
860: =item getfoilcounts()
861:
862: =item format_prior_answer()
863:
864: =item displayallfoils()
865:
866: =item &whichfoils($max,$randomize)
867:
868: Randomizes the list of foils.
869: Respects
870: - each foils desire to be randomized
871: - the existance of Concept groups of foils (select 1 foil from each)
872: - and selects a single correct statement from all possilble true statments
873: - and limits it to a toal of $max foils
874:
875: WARNING: this routine uses the random number generator, it should only
876: be called once per target, otherwise it can cause randomness changes in
877: homework problems.
878:
879: Arguments
880: $max - maximum number of foils to select (including the true one)
881: (so a max of 5 is: 1 true, 4 false)
882:
883: $randomize - whether to randomize the listing of foils, by default
884: will randomize, only if randomize is 'no' will it not
885:
886: Returns
887: $answer - location in the array of the correct answer
888: @foils - array of foil names in to display order
889:
890: =item displayfoils()
891:
892: =item displayallanswers()
893:
894: =item displayanswers()
895:
896: =item start_conceptgroup()
897:
898: =item end_conceptgroup()
899:
900: =item insert_conceptgroup()
901:
902: =item start_foil()
903:
904: =item end_foil()
905:
906: =item insert_foil()
907:
908: =back
909:
910: =cut
911:
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