1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.120 2007/06/26 10:42:09 foxr Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::radiobuttonresponse;
30: use strict;
31: use HTML::Entities();
32: use Apache::lonlocal;
33: use Apache::lonnet;
34: use Apache::response;
35:
36: my $default_bubbles_per_line = 10;
37: my $bubbles_per_line;
38: my $bubble_lines = 1;
39:
40: BEGIN {
41: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
42: }
43:
44: sub start_radiobuttonresponse {
45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
46: my $result;
47:
48:
49:
50: #when in a radiobutton response use these
51: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
52: push (@Apache::lonxml::namespace,'radiobuttonresponse');
53: my $id = &Apache::response::start_response($parstack,$safeeval);
54: $bubbles_per_line =
55: &Apache::response::get_response_param($Apache::inputtags::part."_$id",
56: 'numbubbles',
57: $default_bubbles_per_line);
58:
59: %Apache::hint::radiobutton=();
60: undef(%Apache::response::foilnames);
61: if ($target eq 'meta') {
62: $result=&Apache::response::meta_package_write('radiobuttonresponse');
63: } elsif ($target eq 'edit' ) {
64: $result.=&Apache::edit::start_table($token).
65: '<tr><td>'.&Apache::lonxml::description($token).
66: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
67: "</td><td>Delete:".
68: &Apache::edit::deletelist($target,$token)
69: ."</td><td> ".&Apache::edit::end_row()
70: .&Apache::edit::start_spanning_row();
71: $result.=
72: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
73: $token,'4').
74: &Apache::edit::select_arg('Randomize Foil Order','randomize',
75: ['yes','no'],$token).
76: &Apache::edit::select_arg('Display Direction','direction',
77: ['vertical','horizontal'],$token).
78: &Apache::edit::end_row().
79: &Apache::edit::start_spanning_row()."\n";
80: } elsif ($target eq 'modified') {
81: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
82: $safeeval,'max',
83: 'randomize','direction');
84: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
85: } elsif ($target eq 'tex') {
86: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
87: undef,0);
88: if ($type eq '1') {
89: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
90: } elsif ($type eq 'A') {
91: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
92: } elsif ($type eq 'a') {
93: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
94: } elsif ($type eq 'i') {
95: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
96: } else {
97: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
98: }
99: $result .= '\begin{enumerate}';
100: } elsif ($target eq 'analyze') {
101: my $part_id="$Apache::inputtags::part.$id";
102: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
103: }
104: return $result;
105: }
106:
107: sub end_radiobuttonresponse {
108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
109: my $result;
110: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
111: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
112: &Apache::response::end_response;
113: pop @Apache::lonxml::namespace;
114: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
115: undef(%Apache::response::foilnames);
116: return $result;
117: }
118:
119: %Apache::response::foilgroup=();
120: sub start_foilgroup {
121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
122: my $result;
123: %Apache::response::foilgroup=();
124: $Apache::radiobuttonresponse::conceptgroup=0;
125: &Apache::response::pushrandomnumber();
126: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
127: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
128: }
129: return $result;
130: }
131:
132: sub storesurvey {
133: if ( !&Apache::response::submitted() ) { return ''; }
134: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
135: &Apache::lonxml::debug("Here I am!:$response:");
136: if ( $response !~ /[0-9]+/) { return ''; }
137: my $part = $Apache::inputtags::part;
138: my $id = $Apache::inputtags::response['-1'];
139: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
140: &bubble_line_count(scalar(@whichfoils));
141: my %responsehash;
142: $responsehash{$whichfoils[$response]}=$response;
143: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
144: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
145: $responsestr;
146: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
147: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
148: &Apache::response::handle_previous(\%previous,$ad);
149: &Apache::lonxml::debug("submitted a $response<br />\n");
150: return '';
151: }
152:
153: sub bubble_line_count {
154: my ($numfoils) = @_;
155: $bubble_lines = int($numfoils / $bubbles_per_line);
156: if (($numfoils % $bubbles_per_line) != 0) {
157: $bubble_lines++;
158: }
159: return $bubble_lines;
160:
161: }
162:
163: sub grade_response {
164: my ($max,$randomize)=@_;
165: #keep the random numbers the same must always call this
166: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
167: if ( !&Apache::response::submitted() ) { return; }
168: my $response;
169:
170: # Need to know how many foils we have so that I know how many
171: # bubble lines to consume:
172:
173: my $numfoils = scalar(@whichfoils);
174: &bubble_line_count($numfoils);
175:
176:
177:
178: if ($env{'form.submitted'} eq 'scantron') {
179: $response = &Apache::response::getresponse(1,undef,$bubble_lines,
180: $bubbles_per_line);
181:
182: } else {
183: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
184: }
185:
186:
187: if ( $response !~ /[0-9]+/) { return; }
188: my $part=$Apache::inputtags::part;
189: my $id = $Apache::inputtags::response['-1'];
190: my %responsehash;
191: $responsehash{$whichfoils[$response]}=$response;
192: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
193: my %previous=&Apache::response::check_for_previous($responsestr,
194: $part,$id);
195: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
196: $responsestr;
197: &Apache::lonxml::debug("submitted a $response<br />\n");
198: my $ad;
199: if ($response == $answer) {
200: $ad='EXACT_ANS';
201: } else {
202: $ad='INCORRECT';
203: }
204: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
205: &Apache::response::handle_previous(\%previous,$ad);
206: }
207:
208: sub end_foilgroup {
209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
210:
211: my $result;
212: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
213: $target eq 'tex' || $target eq 'analyze') {
214: my $style = $Apache::lonhomework::type;
215: my $direction = &Apache::lonxml::get_param('direction',$parstack,
216: $safeeval,'-2');
217: if ( $style eq 'survey' && $target ne 'analyze') {
218: if ($target eq 'web' || $target eq 'tex') {
219: $result=&displayallfoils($direction, $target);
220: } elsif ( $target eq 'answer' ) {
221: $result=&displayallanswers();
222: } elsif ( $target eq 'grade' ) {
223: $result=&storesurvey();
224: }
225: } else {
226: my $name;
227: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
228: '-2');
229: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
230: $safeeval,'-2');
231: if ($target eq 'web' || $target eq 'tex') {
232: $result=&displayfoils($target,$max,$randomize,$direction);
233: } elsif ($target eq 'answer' ) {
234: $result=&displayanswers($max,$randomize);
235: } elsif ( $target eq 'grade') {
236: &grade_response($max,$randomize);
237: } elsif ( $target eq 'analyze') {
238: my @shown = &whichfoils($max,$randomize);
239: &bubble_line_count(scalar(@shown));
240: &Apache::response::analyze_store_foilgroup(\@shown,
241: ['text','value','location']);
242: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
243: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
244: ('true','false'));
245: }
246: }
247: $Apache::lonxml::post_evaluate=0;
248: }
249: if ($target eq 'web') {
250: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
251: [\%Apache::response::foilgroup]);
252: }
253:
254: &Apache::response::poprandomnumber();
255: &Apache::lonxml::increment_counter($bubble_lines);
256: return $result;
257: }
258:
259: sub getfoilcounts {
260: my @names;
261: my $truecnt=0;
262: my $falsecnt=0;
263: my $name;
264: if ( $Apache::response::foilgroup{'names'} ) {
265: @names= @{ $Apache::response::foilgroup{'names'} };
266: }
267: foreach $name (@names) {
268: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
269: $truecnt++;
270: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
271: $falsecnt++;
272: }
273: }
274: return ($truecnt,$falsecnt);
275: }
276:
277: sub format_prior_answer {
278: my ($mode,$answer,$other_data) = @_;
279: my $foil_data = $other_data->[0];
280: my %response = &Apache::lonnet::str2hash($answer);
281: my ($name) = keys(%response);
282: return '<span class="LC_prior_radiobutton">'.
283: $foil_data->{$name.'.text'}.'</span>';
284:
285: }
286:
287: sub displayallfoils {
288: my ($direction, $target)=@_;
289: my $result;
290: &Apache::lonxml::debug("survey style display");
291: my @names;
292: &Apache::lonnet::loghthis("Display all foils");
293: if ( $Apache::response::foilgroup{'names'} ) {
294: @names= @{ $Apache::response::foilgroup{'names'} };
295: }
296: &bubble_line_count(scalar(@names));
297:
298: my $temp=0;
299: my $i =0;
300: my $id=$Apache::inputtags::response['-1'];
301: my $part=$Apache::inputtags::part;
302: my $lastresponse=
303: $Apache::lonhomework::history{"resource.$part.$id.submission"};
304: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
305: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
306: if (&Apache::response::show_answer() ) {
307: foreach my $name (@names) {
308: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
309: if (($direction eq 'horizontal') && ($target ne 'tex')) {
310: $result.="<td>";
311: } else {
312: if ($target eq 'tex') {
313: $result .= '\item \vskip -2mm ';
314: } else {
315: $result.="<br />";
316: }
317: }
318: if (defined($lastresponse{$name})) {
319: if ($target eq 'tex') {
320: $result .= '}';
321: } else {
322: $result.='<b>';
323: }
324: }
325: $result .= $Apache::response::foilgroup{$name.'.text'};
326: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
327: $result.='</b>';
328: }
329: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
330: }
331: }
332: } else {
333: foreach my $name (@names) {
334: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
335: if ($direction eq 'horizontal') {
336: $result.="<td>";
337: } else {
338: if ($target eq 'tex') {
339: $result .= '\item \vskip -2mm ';
340: } else {
341: $result.="<br />";
342: }
343: }
344: if ($target eq 'tex') {
345: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
346: $i++;
347: } else {
348: $result .= '<label>';
349: $result.="<input
350: onchange=\"javascript:setSubmittedPart('$part');\"
351: type=\"radio\"
352: name=\"HWVAL_$Apache::inputtags::response['-1']\"
353: value=\"$temp\" ";
354: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
355: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
356: '</label>';
357: }
358: $temp++;
359: if ($target ne 'tex') {
360: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
361: } else {
362: $result.='\vskip 0 mm ';
363: }
364: }
365: }
366: }
367:
368: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
369: return $result;
370: }
371:
372: sub whichfoils {
373: my ($max,$randomize)=@_;
374:
375: my @truelist;
376: my @falselist;
377: my @whichfalse =();
378: my ($truecnt,$falsecnt) = &getfoilcounts();
379: my $count=0;
380: # we will add in 1 of the true statements
381: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
382: my $answer=int(&Math::Random::random_uniform() * ($count));
383: &Apache::lonxml::debug("Count is $count, $answer is $answer");
384: my @names;
385: if ( $Apache::response::foilgroup{'names'} ) {
386: @names= @{ $Apache::response::foilgroup{'names'} };
387: }
388: if (&Apache::response::showallfoils()) {
389: @whichfalse=@names;
390: } elsif ($randomize eq 'no') {
391: &Apache::lonxml::debug("No randomization");
392: my $havetrue=0;
393: foreach my $name (@names) {
394: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
395: if (!$havetrue ) {
396: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
397: }
398: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
399: push (@whichfalse,$name);
400: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
401: } else {
402: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
403: }
404: }
405: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
406: &Apache::lonxml::error("There are no true statements available.<br />");
407: }
408: } else {
409: my $current=0;
410: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
411: my (%top,%bottom);
412: #first find out where everyone wants to be
413: foreach my $name (@names) {
414: $current++;
415: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
416: push (@truelist,$name);
417: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
418: $top{$name}=$current;
419: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
420: $bottom{$name}=$current;
421: }
422: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
423: push (@falselist,$name);
424: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
425: $top{$name}=$current;
426: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
427: $bottom{$name}=$current;
428: }
429: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
430: } else {
431: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
432: }
433: }
434: #pick a true statement
435: my $notrue=0;
436: if (scalar(@truelist) == 0) { $notrue=1; }
437: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
438: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
439: my (@toplist, @bottomlist);
440: my $topcount=0;
441: my $bottomcount=0;
442: # assign everyone to either toplist/bottomlist or whichfalse
443: # which false is randomized, toplist bottomlist are in order
444: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
445: &Apache::lonxml::debug("Have $#whichfalse max is $max");
446: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
447: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
448: $afalse=splice(@falselist,$afalse,1);
449: &Apache::lonxml::debug("Picked $afalse");
450: &Apache::lonhomework::showhash(('names'=>\@names));
451: &Apache::lonhomework::showhash(%top);
452: if ($top{$afalse}) {
453: $toplist[$top{$afalse}]=$afalse;
454: $topcount++;
455: } elsif ($bottom{$afalse}) {
456: $bottomlist[$bottom{$afalse}]=$afalse;
457: $bottomcount++;
458: } else {
459: push (@whichfalse,$afalse);
460: }
461: }
462: &Apache::lonxml::debug("Answer wants $answer");
463: my $truename=$truelist[$whichtrue];
464: my $dosplice=1;
465: if ($notrue && $Apache::lonhomework::type ne 'survey') {
466: $dosplice=0;
467: &Apache::lonxml::error("There are no true statements available.<br />");
468: }
469: #insert the true statement, keeping track of where it wants to be
470: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
471: $toplist[$top{$truename}]=$truename;
472: $answer=-1;
473: foreach my $top (reverse(@toplist)) {
474: if ($top) { $answer++;}
475: if ($top eq $truename) { last; }
476: }
477: $dosplice=0;
478: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
479: $bottomlist[$bottom{$truename}]=$truename;
480: $answer=-1;
481: foreach my $bot (@bottomlist) {
482: if ($bot) { $answer++;}
483: if ($bot eq $truename) { last; }
484: }
485: $answer+=$topcount+$#whichfalse+1;
486: $dosplice=0;
487: } else {
488: if ($topcount>0 || $bottomcount>0) {
489: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
490: + $topcount;
491: }
492: }
493: &Apache::lonxml::debug("Answer now wants $answer");
494: #add the top items to the top, bottom items to the bottom
495: for (my $i=0;$i<=$#toplist;$i++) {
496: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
497: }
498: for (my $i=0;$i<=$#bottomlist;$i++) {
499: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
500: }
501: #if the true statement is randomized insert it into the list
502: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
503: }
504: &Apache::lonxml::debug("Answer is $answer");
505: return ($answer,@whichfalse);
506: }
507:
508: sub displayfoils {
509: my ($target,$max,$randomize,$direction)=@_;
510: my $result;
511:
512: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
513: &bubble_line_count(scalar(@whichfoils));
514: my $part=$Apache::inputtags::part;
515: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
516: if ( ($target ne 'tex') &&
517: &Apache::response::show_answer() ) {
518: if ($direction eq 'horizontal') {
519: if ($target ne 'tex') {
520: $result.='<table><tr>';
521: }
522: }
523: foreach my $name (@whichfoils) {
524: if ($direction eq 'horizontal') {
525: if ($target ne 'tex') { $result.='<td>'; }
526: }
527: if ($target ne 'tex') {
528: $result.="<br />";
529: } else {
530: $result.='\item \vskip -2 mm ';
531: }
532: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
533: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
534: } else {
535: $result.='Incorrect:';
536: }
537: if ($target eq 'web') { $result.="<label>"; }
538: $result.=$Apache::response::foilgroup{$name.'.text'};
539: if ($target eq 'web') { $result.="</label>"; }
540: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
541: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
542: }
543: if ($direction eq 'horizontal') {
544: if ($target ne 'tex') { $result.='</td>'; }
545: }
546: }
547: if ($direction eq 'horizontal') {
548: if ($target ne 'tex') {
549: $result.='</tr></table>';
550: }
551: }
552: } else {
553: my @alphabet = ('A'..'Z');
554: my $i = 0;
555: my $bubble_number = 0;
556: my $temp=0;
557: my $id=$Apache::inputtags::response['-1'];
558: my $part=$Apache::inputtags::part;
559: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
560: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
561: if ($target ne 'tex' && $direction eq 'horizontal') {
562: $result.="<table><tr>";
563: }
564: foreach my $name (@whichfoils) {
565: if ($target ne 'tex') {
566: if ($direction eq 'horizontal') {
567: $result.="<td>";
568: } else {
569: $result.="<br />";
570: }
571: }
572: if ($target ne 'tex') {
573: $result.= '<label>';
574: $result.=
575: "<input type=\"radio\"
576: onchange=\"javascript:setSubmittedPart('$part');\"
577: name=\"HWVAL_$Apache::inputtags::response['-1']\"
578: value=\"$temp\" ";
579: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
580: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
581: } else {
582: if ($Apache::lonhomework::type eq 'exam') {
583: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
584: $i++;
585: $bubble_number++;
586: if($bubble_number >= $bubbles_per_line) {
587: $i = 0;
588: $bubble_number = 0;
589: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
590: }
591: } else {
592: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
593: }
594: }
595: if ($target ne 'tex' && $direction eq 'horizontal') {
596: $result.="</td>";
597: }
598: $temp++;
599: }
600: if ($target ne 'tex' && $direction eq 'horizontal') {
601: $result.="</tr></table>";
602: }
603: }
604: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
605: return $result;
606: }
607:
608: sub displayallanswers {
609: my @names;
610: if ( $Apache::response::foilgroup{'names'} ) {
611: @names= @{ $Apache::response::foilgroup{'names'} };
612: }
613: &bubble_line_count(scalar(@names));
614: my $result=&Apache::response::answer_header('radiobuttonresponse');
615: foreach my $name (@names) {
616: $result.=&Apache::response::answer_part('radiobuttonresponse',
617: $Apache::response::foilgroup{$name.'.value'});
618: }
619: $result.=&Apache::response::answer_footer('radiobuttonresponse');
620: return $result;
621: }
622:
623: sub displayanswers {
624: my ($max,$randomize)=@_;
625: my ($answer,@whichopt) = &whichfoils($max,$randomize);
626: my $result=&Apache::response::answer_header('radiobuttonresponse');
627: if ($Apache::lonhomework::type eq 'exam') {
628: my $correct = ('A'..'Z')[$answer];
629: $result.=&Apache::response::answer_part('radiobuttonresponse',
630: $correct);
631: }
632: foreach my $name (@whichopt) {
633: $result.=&Apache::response::answer_part('radiobuttonresponse',
634: $Apache::response::foilgroup{$name.'.value'});
635: }
636: $result.=&Apache::response::answer_footer('radiobuttonresponse');
637: return $result;
638: }
639:
640: sub start_conceptgroup {
641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
642: $Apache::radiobuttonresponse::conceptgroup=1;
643: %Apache::response::conceptgroup=();
644: my $result;
645: if ($target eq 'edit') {
646: $result.=&Apache::edit::tag_start($target,$token);
647: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
648: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
649: } elsif ($target eq 'modified') {
650: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
651: $safeeval,'concept');
652: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
653: }
654: return $result;
655: }
656:
657: sub end_conceptgroup {
658: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
659: $Apache::radiobuttonresponse::conceptgroup=0;
660: my $result;
661: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
662: $target eq 'tex' || $target eq 'analyze') {
663: &Apache::response::pick_foil_for_concept($target,
664: ['value','text','location'],
665: \%Apache::hint::radiobutton,
666: $parstack,$safeeval);
667: } elsif ($target eq 'edit') {
668: $result=&Apache::edit::end_table();
669: }
670: return $result;
671: }
672:
673: sub insert_conceptgroup {
674: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
675: return $result;
676: }
677:
678: sub start_foil {
679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
680: my $result='';
681: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
682: &Apache::lonxml::startredirection;
683: if ($target eq 'analyze') {
684: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
685: }
686: } elsif ($target eq 'edit') {
687: $result=&Apache::edit::tag_start($target,$token);
688: $result.=&Apache::edit::text_arg('Name:','name',$token);
689: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
690: ['unused','true','false'],
691: $token);
692: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
693: $safeeval,'-3');
694: if ($randomize ne 'no') {
695: $result.=&Apache::edit::select_arg('Location:','location',
696: ['random','top','bottom'],$token);
697: }
698: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
699: } elsif ($target eq 'modified') {
700: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
701: $safeeval,'value','name',
702: 'location');
703: if ($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 $text='';
711: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
712: $text=&Apache::lonxml::endredirection;
713: }
714: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
715: || $target eq 'tex' || $target eq 'analyze') {
716: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
717: if ($value ne 'unused') {
718: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
719: if ($name eq "") {
720: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
721: $name=$Apache::lonxml::curdepth;
722: }
723: if (defined($Apache::response::foilnames{$name})) {
724: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
725: }
726: $Apache::response::foilnames{$name}++;
727: my $location =&Apache::lonxml::get_param('location',$parstack,
728: $safeeval);
729: if ( $Apache::radiobuttonresponse::conceptgroup
730: && !&Apache::response::showallfoils() ) {
731: push @{ $Apache::response::conceptgroup{'names'} }, $name;
732: $Apache::response::conceptgroup{"$name.value"} = $value;
733: $Apache::response::conceptgroup{"$name.text"} = $text;
734: $Apache::response::conceptgroup{"$name.location"} = $location;
735: } else {
736: push @{ $Apache::response::foilgroup{'names'} }, $name;
737: $Apache::response::foilgroup{"$name.value"} = $value;
738: $Apache::response::foilgroup{"$name.text"} = $text;
739: $Apache::response::foilgroup{"$name.location"} = $location;
740: }
741: }
742: }
743: return '';
744: }
745:
746: sub insert_foil {
747: return '
748: <foil name="" value="unused">
749: <startouttext />
750: <endouttext />
751: </foil>';
752: }
753: 1;
754: __END__
755:
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