1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.115 2007/05/17 10:01:44 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: BEGIN {
37: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
38: }
39:
40: sub start_radiobuttonresponse {
41: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
42: my $result;
43: #----- test/debugging to figure out some crap
44:
45: my $partid = $Apache::inputtags::part;
46: &Apache::lonnet::logthis("Part id = $partid");
47: my $bubble_max = &Apache::response::get_response_param($partid, 'numbubbles', 10);
48: &Apache::lonnet::logthis("numbubbles [10] = $bubble_max");
49:
50: #----- End test/debugging
51: #when in a radiobutton response use these
52: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
53: push (@Apache::lonxml::namespace,'radiobuttonresponse');
54: my $id = &Apache::response::start_response($parstack,$safeeval);
55: %Apache::hint::radiobutton=();
56: undef(%Apache::response::foilnames);
57: if ($target eq 'meta') {
58: $result=&Apache::response::meta_package_write('radiobuttonresponse');
59: } elsif ($target eq 'edit' ) {
60: $result.=&Apache::edit::start_table($token).
61: '<tr><td>'.&Apache::lonxml::description($token).
62: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
63: "</td><td>Delete:".
64: &Apache::edit::deletelist($target,$token)
65: ."</td><td> ".&Apache::edit::end_row()
66: .&Apache::edit::start_spanning_row();
67: $result.=
68: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
69: $token,'4').
70: &Apache::edit::select_arg('Randomize Foil Order','randomize',
71: ['yes','no'],$token).
72: &Apache::edit::select_arg('Display Direction','direction',
73: ['vertical','horizontal'],$token).
74: &Apache::edit::end_row().
75: &Apache::edit::start_spanning_row()."\n";
76: } elsif ($target eq 'modified') {
77: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
78: $safeeval,'max',
79: 'randomize','direction');
80: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
81: } elsif ($target eq 'tex') {
82: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
83: undef,0);
84: if ($type eq '1') {
85: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
86: } elsif ($type eq 'A') {
87: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
88: } elsif ($type eq 'a') {
89: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
90: } elsif ($type eq 'i') {
91: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
92: } else {
93: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
94: }
95: $result .= '\begin{enumerate}';
96: } elsif ($target eq 'analyze') {
97: my $part_id="$Apache::inputtags::part.$id";
98: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
99: }
100: return $result;
101: }
102:
103: sub end_radiobuttonresponse {
104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
105: my $result;
106: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
107: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
108: &Apache::response::end_response;
109: pop @Apache::lonxml::namespace;
110: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
111: undef(%Apache::response::foilnames);
112: return $result;
113: }
114:
115: %Apache::response::foilgroup=();
116: sub start_foilgroup {
117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
118: my $result;
119: %Apache::response::foilgroup=();
120: $Apache::radiobuttonresponse::conceptgroup=0;
121: &Apache::response::pushrandomnumber();
122: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
123: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
124: }
125: return $result;
126: }
127:
128: sub storesurvey {
129: if ( !&Apache::response::submitted() ) { return ''; }
130: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
131: &Apache::lonxml::debug("Here I am!:$response:");
132: if ( $response !~ /[0-9]+/) { return ''; }
133: my $part = $Apache::inputtags::part;
134: my $id = $Apache::inputtags::response['-1'];
135: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
136: my %responsehash;
137: $responsehash{$whichfoils[$response]}=$response;
138: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
139: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
140: $responsestr;
141: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
142: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
143: &Apache::response::handle_previous(\%previous,$ad);
144: &Apache::lonxml::debug("submitted a $response<br />\n");
145: return '';
146: }
147:
148: sub grade_response {
149: my ($max,$randomize)=@_;
150: #keep the random numbers the same must always call this
151: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
152: if ( !&Apache::response::submitted() ) { return; }
153: my $response;
154: if ($env{'form.submitted'} eq 'scantron') {
155: $response=&Apache::response::getresponse();
156: } else {
157: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
158: }
159: if ( $response !~ /[0-9]+/) { return; }
160: my $part=$Apache::inputtags::part;
161: my $id = $Apache::inputtags::response['-1'];
162: my %responsehash;
163: $responsehash{$whichfoils[$response]}=$response;
164: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
165: my %previous=&Apache::response::check_for_previous($responsestr,
166: $part,$id);
167: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
168: $responsestr;
169: &Apache::lonxml::debug("submitted a $response<br />\n");
170: my $ad;
171: if ($response == $answer) {
172: $ad='EXACT_ANS';
173: } else {
174: $ad='INCORRECT';
175: }
176: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
177: &Apache::response::handle_previous(\%previous,$ad);
178: }
179:
180: sub end_foilgroup {
181: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
182:
183: my $result;
184: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
185: $target eq 'tex' || $target eq 'analyze') {
186: my $style = $Apache::lonhomework::type;
187: my $direction = &Apache::lonxml::get_param('direction',$parstack,
188: $safeeval,'-2');
189: if ( $style eq 'survey' && $target ne 'analyze') {
190: if ($target eq 'web' || $target eq 'tex') {
191: $result=&displayallfoils($direction, $target);
192: } elsif ( $target eq 'answer' ) {
193: $result=&displayallanswers();
194: } elsif ( $target eq 'grade' ) {
195: $result=&storesurvey();
196: }
197: } else {
198: my $name;
199: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
200: '-2');
201: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
202: $safeeval,'-2');
203: if ($target eq 'web' || $target eq 'tex') {
204: $result=&displayfoils($target,$max,$randomize,$direction);
205: } elsif ($target eq 'answer' ) {
206: $result=&displayanswers($max,$randomize);
207: } elsif ( $target eq 'grade') {
208: &grade_response($max,$randomize);
209: } elsif ( $target eq 'analyze') {
210: my @shown = &whichfoils($max,$randomize);
211: &Apache::response::analyze_store_foilgroup(\@shown,
212: ['text','value','location']);
213: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
214: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
215: ('true','false'));
216: }
217: }
218: $Apache::lonxml::post_evaluate=0;
219: }
220: if ($target eq 'web') {
221: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
222: [\%Apache::response::foilgroup]);
223: }
224:
225: &Apache::response::poprandomnumber();
226: &Apache::lonxml::increment_counter();
227: return $result;
228: }
229:
230: sub getfoilcounts {
231: my @names;
232: my $truecnt=0;
233: my $falsecnt=0;
234: my $name;
235: if ( $Apache::response::foilgroup{'names'} ) {
236: @names= @{ $Apache::response::foilgroup{'names'} };
237: }
238: foreach $name (@names) {
239: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
240: $truecnt++;
241: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
242: $falsecnt++;
243: }
244: }
245: return ($truecnt,$falsecnt);
246: }
247:
248: sub format_prior_answer {
249: my ($mode,$answer,$other_data) = @_;
250: my $foil_data = $other_data->[0];
251: my %response = &Apache::lonnet::str2hash($answer);
252: my ($name) = keys(%response);
253: return '<span class="LC_prior_radiobutton">'.
254: $foil_data->{$name.'.text'}.'</span>';
255:
256: }
257:
258: sub displayallfoils {
259: my ($direction, $target)=@_;
260: my $result;
261: &Apache::lonxml::debug("survey style display");
262: my @names;
263: if ( $Apache::response::foilgroup{'names'} ) {
264: @names= @{ $Apache::response::foilgroup{'names'} };
265: }
266: my $temp=0;
267: my $i =0;
268: my $id=$Apache::inputtags::response['-1'];
269: my $part=$Apache::inputtags::part;
270: my $lastresponse=
271: $Apache::lonhomework::history{"resource.$part.$id.submission"};
272: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
273: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
274: if (&Apache::response::show_answer() ) {
275: foreach my $name (@names) {
276: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
277: if (($direction eq 'horizontal') && ($target ne 'tex')) {
278: $result.="<td>";
279: } else {
280: if ($target eq 'tex') {
281: $result .= '\item \vskip -2mm ';
282: } else {
283: $result.="<br />";
284: }
285: }
286: if (defined($lastresponse{$name})) {
287: if ($target eq 'tex') {
288: $result .= '}';
289: } else {
290: $result.='<b>';
291: }
292: }
293: $result .= $Apache::response::foilgroup{$name.'.text'};
294: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
295: $result.='</b>';
296: }
297: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
298: }
299: }
300: } else {
301: foreach my $name (@names) {
302: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
303: if ($direction eq 'horizontal') {
304: $result.="<td>";
305: } else {
306: if ($target eq 'tex') {
307: $result .= '\item \vskip -2mm ';
308: } else {
309: $result.="<br />";
310: }
311: }
312: if ($target eq 'tex') {
313: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
314: $i++;
315: } else {
316: $result .= '<label>';
317: $result.="<input
318: onchange=\"javascript:setSubmittedPart('$part');\"
319: type=\"radio\"
320: name=\"HWVAL_$Apache::inputtags::response['-1']\"
321: value=\"$temp\" ";
322: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
323: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
324: '</label>';
325: }
326: $temp++;
327: if ($target ne 'tex') {
328: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
329: } else {
330: $result.='\vskip 0 mm ';
331: }
332: }
333: }
334: }
335: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
336: return $result;
337: }
338:
339: sub whichfoils {
340: my ($max,$randomize)=@_;
341:
342: my @truelist;
343: my @falselist;
344: my @whichfalse =();
345: my ($truecnt,$falsecnt) = &getfoilcounts();
346: my $count=0;
347: # we will add in 1 of the true statements
348: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
349: my $answer=int(&Math::Random::random_uniform() * ($count));
350: &Apache::lonxml::debug("Count is $count, $answer is $answer");
351: my @names;
352: if ( $Apache::response::foilgroup{'names'} ) {
353: @names= @{ $Apache::response::foilgroup{'names'} };
354: }
355: if (&Apache::response::showallfoils()) {
356: @whichfalse=@names;
357: } elsif ($randomize eq 'no') {
358: &Apache::lonxml::debug("No randomization");
359: my $havetrue=0;
360: foreach my $name (@names) {
361: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
362: if (!$havetrue ) {
363: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
364: }
365: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
366: push (@whichfalse,$name);
367: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
368: } else {
369: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
370: }
371: }
372: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
373: &Apache::lonxml::error("There are no true statements available.<br />");
374: }
375: } else {
376: my $current=0;
377: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
378: my (%top,%bottom);
379: #first find out where everyone wants to be
380: foreach my $name (@names) {
381: $current++;
382: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
383: push (@truelist,$name);
384: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
385: $top{$name}=$current;
386: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
387: $bottom{$name}=$current;
388: }
389: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
390: push (@falselist,$name);
391: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
392: $top{$name}=$current;
393: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
394: $bottom{$name}=$current;
395: }
396: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
397: } else {
398: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
399: }
400: }
401: #pick a true statement
402: my $notrue=0;
403: if (scalar(@truelist) == 0) { $notrue=1; }
404: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
405: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
406: my (@toplist, @bottomlist);
407: my $topcount=0;
408: my $bottomcount=0;
409: # assign everyone to either toplist/bottomlist or whichfalse
410: # which false is randomized, toplist bottomlist are in order
411: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
412: &Apache::lonxml::debug("Have $#whichfalse max is $max");
413: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
414: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
415: $afalse=splice(@falselist,$afalse,1);
416: &Apache::lonxml::debug("Picked $afalse");
417: &Apache::lonhomework::showhash(('names'=>\@names));
418: &Apache::lonhomework::showhash(%top);
419: if ($top{$afalse}) {
420: $toplist[$top{$afalse}]=$afalse;
421: $topcount++;
422: } elsif ($bottom{$afalse}) {
423: $bottomlist[$bottom{$afalse}]=$afalse;
424: $bottomcount++;
425: } else {
426: push (@whichfalse,$afalse);
427: }
428: }
429: &Apache::lonxml::debug("Answer wants $answer");
430: my $truename=$truelist[$whichtrue];
431: my $dosplice=1;
432: if ($notrue && $Apache::lonhomework::type ne 'survey') {
433: $dosplice=0;
434: &Apache::lonxml::error("There are no true statements available.<br />");
435: }
436: #insert the true statement, keeping track of where it wants to be
437: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
438: $toplist[$top{$truename}]=$truename;
439: $answer=-1;
440: foreach my $top (reverse(@toplist)) {
441: if ($top) { $answer++;}
442: if ($top eq $truename) { last; }
443: }
444: $dosplice=0;
445: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
446: $bottomlist[$bottom{$truename}]=$truename;
447: $answer=-1;
448: foreach my $bot (@bottomlist) {
449: if ($bot) { $answer++;}
450: if ($bot eq $truename) { last; }
451: }
452: $answer+=$topcount+$#whichfalse+1;
453: $dosplice=0;
454: } else {
455: if ($topcount>0 || $bottomcount>0) {
456: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
457: + $topcount;
458: }
459: }
460: &Apache::lonxml::debug("Answer now wants $answer");
461: #add the top items to the top, bottom items to the bottom
462: for (my $i=0;$i<=$#toplist;$i++) {
463: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
464: }
465: for (my $i=0;$i<=$#bottomlist;$i++) {
466: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
467: }
468: #if the true statement is randomized insert it into the list
469: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
470: }
471: &Apache::lonxml::debug("Answer is $answer");
472: return ($answer,@whichfalse);
473: }
474:
475: sub displayfoils {
476: my ($target,$max,$randomize,$direction)=@_;
477: my $result;
478:
479: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
480: my $part=$Apache::inputtags::part;
481: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
482: if ( ($target ne 'tex') &&
483: &Apache::response::show_answer() ) {
484: if ($direction eq 'horizontal') {
485: if ($target ne 'tex') {
486: $result.='<table><tr>';
487: }
488: }
489: foreach my $name (@whichfoils) {
490: if ($direction eq 'horizontal') {
491: if ($target ne 'tex') { $result.='<td>'; }
492: }
493: if ($target ne 'tex') {
494: $result.="<br />";
495: } else {
496: $result.='\item \vskip -2 mm ';
497: }
498: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
499: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
500: } else {
501: $result.='Incorrect:';
502: }
503: if ($target eq 'web') { $result.="<label>"; }
504: $result.=$Apache::response::foilgroup{$name.'.text'};
505: if ($target eq 'web') { $result.="</label>"; }
506: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
507: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
508: }
509: if ($direction eq 'horizontal') {
510: if ($target ne 'tex') { $result.='</td>'; }
511: }
512: }
513: if ($direction eq 'horizontal') {
514: if ($target ne 'tex') {
515: $result.='</tr></table>';
516: }
517: }
518: } else {
519: my @alphabet = ('A'..'Z');
520: my $i = 0;
521: my $temp=0;
522: my $id=$Apache::inputtags::response['-1'];
523: my $part=$Apache::inputtags::part;
524: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
525: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
526: if ($target ne 'tex' && $direction eq 'horizontal') {
527: $result.="<table><tr>";
528: }
529: foreach my $name (@whichfoils) {
530: if ($target ne 'tex') {
531: if ($direction eq 'horizontal') {
532: $result.="<td>";
533: } else {
534: $result.="<br />";
535: }
536: }
537: if ($target ne 'tex') {
538: $result.= '<label>';
539: $result.=
540: "<input type=\"radio\"
541: onchange=\"javascript:setSubmittedPart('$part');\"
542: name=\"HWVAL_$Apache::inputtags::response['-1']\"
543: value=\"$temp\" ";
544: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
545: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
546: } else {
547: if ($Apache::lonhomework::type eq 'exam') {
548: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
549: $i++;
550: } else {
551: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
552: }
553: }
554: if ($target ne 'tex' && $direction eq 'horizontal') {
555: $result.="</td>";
556: }
557: $temp++;
558: }
559: if ($target ne 'tex' && $direction eq 'horizontal') {
560: $result.="</tr></table>";
561: }
562: }
563: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
564: return $result;
565: }
566:
567: sub displayallanswers {
568: my @names;
569: if ( $Apache::response::foilgroup{'names'} ) {
570: @names= @{ $Apache::response::foilgroup{'names'} };
571: }
572:
573: my $result=&Apache::response::answer_header('radiobuttonresponse');
574: foreach my $name (@names) {
575: $result.=&Apache::response::answer_part('radiobuttonresponse',
576: $Apache::response::foilgroup{$name.'.value'});
577: }
578: $result.=&Apache::response::answer_footer('radiobuttonresponse');
579: return $result;
580: }
581:
582: sub displayanswers {
583: my ($max,$randomize)=@_;
584: my ($answer,@whichopt) = &whichfoils($max,$randomize);
585: my $result=&Apache::response::answer_header('radiobuttonresponse');
586: if ($Apache::lonhomework::type eq 'exam') {
587: my $correct = ('A'..'Z')[$answer];
588: $result.=&Apache::response::answer_part('radiobuttonresponse',
589: $correct);
590: }
591: foreach my $name (@whichopt) {
592: $result.=&Apache::response::answer_part('radiobuttonresponse',
593: $Apache::response::foilgroup{$name.'.value'});
594: }
595: $result.=&Apache::response::answer_footer('radiobuttonresponse');
596: return $result;
597: }
598:
599: sub start_conceptgroup {
600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
601: $Apache::radiobuttonresponse::conceptgroup=1;
602: %Apache::response::conceptgroup=();
603: my $result;
604: if ($target eq 'edit') {
605: $result.=&Apache::edit::tag_start($target,$token);
606: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
607: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
608: } elsif ($target eq 'modified') {
609: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
610: $safeeval,'concept');
611: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
612: }
613: return $result;
614: }
615:
616: sub end_conceptgroup {
617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
618: $Apache::radiobuttonresponse::conceptgroup=0;
619: my $result;
620: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
621: $target eq 'tex' || $target eq 'analyze') {
622: &Apache::response::pick_foil_for_concept($target,
623: ['value','text','location'],
624: \%Apache::hint::radiobutton,
625: $parstack,$safeeval);
626: } elsif ($target eq 'edit') {
627: $result=&Apache::edit::end_table();
628: }
629: return $result;
630: }
631:
632: sub insert_conceptgroup {
633: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
634: return $result;
635: }
636:
637: sub start_foil {
638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
639: my $result='';
640: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
641: &Apache::lonxml::startredirection;
642: if ($target eq 'analyze') {
643: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
644: }
645: } elsif ($target eq 'edit') {
646: $result=&Apache::edit::tag_start($target,$token);
647: $result.=&Apache::edit::text_arg('Name:','name',$token);
648: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
649: ['unused','true','false'],
650: $token);
651: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
652: $safeeval,'-3');
653: if ($randomize ne 'no') {
654: $result.=&Apache::edit::select_arg('Location:','location',
655: ['random','top','bottom'],$token);
656: }
657: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
658: } elsif ($target eq 'modified') {
659: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
660: $safeeval,'value','name',
661: 'location');
662: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
663: }
664: return $result;
665: }
666:
667: sub end_foil {
668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
669: my $text='';
670: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
671: $text=&Apache::lonxml::endredirection;
672: }
673: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
674: || $target eq 'tex' || $target eq 'analyze') {
675: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
676: if ($value ne 'unused') {
677: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
678: if ($name eq "") {
679: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
680: $name=$Apache::lonxml::curdepth;
681: }
682: if (defined($Apache::response::foilnames{$name})) {
683: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
684: }
685: $Apache::response::foilnames{$name}++;
686: my $location =&Apache::lonxml::get_param('location',$parstack,
687: $safeeval);
688: if ( $Apache::radiobuttonresponse::conceptgroup
689: && !&Apache::response::showallfoils() ) {
690: push @{ $Apache::response::conceptgroup{'names'} }, $name;
691: $Apache::response::conceptgroup{"$name.value"} = $value;
692: $Apache::response::conceptgroup{"$name.text"} = $text;
693: $Apache::response::conceptgroup{"$name.location"} = $location;
694: } else {
695: push @{ $Apache::response::foilgroup{'names'} }, $name;
696: $Apache::response::foilgroup{"$name.value"} = $value;
697: $Apache::response::foilgroup{"$name.text"} = $text;
698: $Apache::response::foilgroup{"$name.location"} = $location;
699: }
700: }
701: }
702: return '';
703: }
704:
705: sub insert_foil {
706: return '
707: <foil name="" value="unused">
708: <startouttext />
709: <endouttext />
710: </foil>';
711: }
712: 1;
713: __END__
714:
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