1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.134 2008/08/08 16:37:13 bisitz 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: package Apache::radiobuttonresponse;
29: use strict;
30: use HTML::Entities();
31: use Apache::lonlocal;
32: use Apache::lonnet;
33: use Apache::response;
34:
35: my $default_bubbles_per_line = 10;
36:
37:
38: BEGIN {
39: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
40: }
41:
42: sub bubble_line_count {
43: my ($numfoils, $bubbles_per_line) = @_;
44: my $bubble_lines;
45: $bubble_lines = int($numfoils / $bubbles_per_line);
46: if (($numfoils % $bubbles_per_line) != 0) {
47: $bubble_lines++;
48: }
49: return $bubble_lines;
50:
51: }
52:
53:
54: sub start_radiobuttonresponse {
55: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
56: my $result;
57:
58: #when in a radiobutton response use these
59: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
60: push (@Apache::lonxml::namespace,'radiobuttonresponse');
61: my $id = &Apache::response::start_response($parstack,$safeeval);
62:
63: %Apache::hint::radiobutton=();
64: undef(%Apache::response::foilnames);
65: if ($target eq 'meta') {
66: $result=&Apache::response::meta_package_write('radiobuttonresponse');
67: } elsif ($target eq 'edit' ) {
68: $result.=&Apache::edit::start_table($token).
69: '<tr><td>'.&Apache::lonxml::description($token).
70: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
71: "</td><td>Delete:".
72: &Apache::edit::deletelist($target,$token)
73: ."</td><td> ".&Apache::edit::end_row()
74: .&Apache::edit::start_spanning_row();
75: $result.=
76: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
77: $token,'4').
78: &Apache::edit::select_arg('Randomize Foil Order','randomize',
79: ['yes','no'],$token).
80: &Apache::edit::select_arg('Display Direction','direction',
81: ['vertical','horizontal'],$token).
82: &Apache::edit::end_row().
83: &Apache::edit::start_spanning_row()."\n";
84: } elsif ($target eq 'modified') {
85: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
86: $safeeval,'max',
87: 'randomize','direction');
88: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
89: } elsif ($target eq 'tex') {
90: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
91: undef,0);
92: if ($type eq '1') {
93: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
94: } elsif ($type eq 'A') {
95: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
96: } elsif ($type eq 'a') {
97: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
98: } elsif ($type eq 'i') {
99: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
100: } else {
101: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
102: }
103: $result .= '\begin{enumerate}';
104: } elsif ($target eq 'analyze') {
105: my $part_id="$Apache::inputtags::part.$id";
106: $Apache::lonhomework::analyze{"$part_id.type"} = 'radiobuttonresponse';
107: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
108: }
109: return $result;
110: }
111:
112: sub end_radiobuttonresponse {
113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
114: my $result;
115: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
116: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
117: &Apache::response::end_response;
118: pop @Apache::lonxml::namespace;
119: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
120: undef(%Apache::response::foilnames);
121: return $result;
122: }
123:
124: %Apache::response::foilgroup=();
125: sub start_foilgroup {
126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
127: my $result;
128: %Apache::response::foilgroup=();
129: $Apache::radiobuttonresponse::conceptgroup=0;
130: &Apache::response::pushrandomnumber();
131: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
132: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
133: }
134: return $result;
135: }
136:
137: sub storesurvey {
138: if ( !&Apache::response::submitted() ) { return ''; }
139: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
140: &Apache::lonxml::debug("Here I am!:$response:");
141: if ( $response !~ /[0-9]+/) { return ''; }
142: my $part = $Apache::inputtags::part;
143: my $id = $Apache::inputtags::response['-1'];
144: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
145: my %responsehash;
146: $responsehash{$whichfoils[$response]}=$response;
147: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
148: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
149: $responsestr;
150: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
151: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
152: &Apache::response::handle_previous(\%previous,$ad);
153: &Apache::lonxml::debug("submitted a $response<br />\n");
154: return '';
155: }
156:
157:
158: sub grade_response {
159: my ($answer, $whichfoils, $bubbles_per_line)=@_;
160:
161: if ( !&Apache::response::submitted() ) { return; }
162: my $response;
163:
164: if ($env{'form.submitted'} eq 'scantron') {
165: $response = &Apache::response::getresponse(1,undef,
166: &bubble_line_count(scalar(@{ $whichfoils}),
167: $bubbles_per_line),
168: $bubbles_per_line);
169:
170: } else {
171: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
172: }
173:
174:
175: if ( $response !~ /[0-9]+/) { return; }
176: my $part=$Apache::inputtags::part;
177: my $id = $Apache::inputtags::response['-1'];
178: my %responsehash;
179: $responsehash{$whichfoils->[$response]}=$response;
180: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
181: my %previous=&Apache::response::check_for_previous($responsestr,
182: $part,$id);
183: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
184: $responsestr;
185: &Apache::lonxml::debug("submitted a $response<br />\n");
186: my $ad;
187: if ($response == $answer) {
188: $ad='EXACT_ANS';
189: } else {
190: $ad='INCORRECT';
191: }
192: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
193: &Apache::response::handle_previous(\%previous,$ad);
194: }
195:
196: sub end_foilgroup {
197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
198:
199: my $result;
200: my $bubble_lines;
201: my $bubbles_per_line;
202: my $answer_count;
203: my $id = $Apache::inputtags::response['-1'];
204: my $part = $Apache::inputtags::part;
205: $bubbles_per_line =
206: &Apache::response::get_response_param($Apache::inputtags::part."_$id",
207: 'numbubbles',
208: $default_bubbles_per_line);
209:
210:
211: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
212: $target eq 'tex' || $target eq 'analyze') {
213: my $style = $Apache::lonhomework::type;
214: my $direction = &Apache::lonxml::get_param('direction',$parstack,
215: $safeeval,'-2');
216: if ( $style eq 'survey' && $target ne 'analyze') {
217: if ($target eq 'web' || $target eq 'tex') {
218: $result=&displayallfoils($direction, $target);
219: } elsif ( $target eq 'answer' ) {
220: $result=&displayallanswers();
221: } elsif ( $target eq 'grade' ) {
222: $result=&storesurvey();
223: }
224: $answer_count = scalar(@{$Apache::response::foilgroup{'names'}});
225:
226: } else {
227:
228: my $name;
229: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
230: '-2');
231: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
232: $safeeval,'-2');
233: my ($answer, @shown) = &whichfoils($max, $randomize);
234: $answer_count = scalar(@shown);
235:
236: if ($target eq 'web' || $target eq 'tex') {
237: $result=&displayfoils($target,
238: $answer, \@shown,
239: $direction,
240: $bubbles_per_line);
241: } elsif ($target eq 'answer' ) {
242: $result=&displayanswers($answer, \@shown, $bubbles_per_line);
243: } elsif ( $target eq 'grade') {
244: &grade_response($answer, \@shown, $bubbles_per_line);
245: } elsif ( $target eq 'analyze') {
246: my $bubble_lines = &bubble_line_count($answer_count,
247: $bubbles_per_line);
248: &Apache::response::analyze_store_foilgroup(\@shown,
249: ['text','value','location']);
250: my $part_id="$part.$id";
251: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
252: ('true','false'));
253:
254: }
255: }
256: $Apache::lonxml::post_evaluate=0;
257: }
258: if ($target eq 'web') {
259: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
260: [\%Apache::response::foilgroup]);
261: }
262: &Apache::response::poprandomnumber();
263: $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
264: &Apache::lonxml::increment_counter($bubble_lines,
265: "$part.$id");
266: if ($target eq 'analyze') {
267: &Apache::lonhomework::set_bubble_lines();
268: }
269: return $result;
270: }
271:
272: sub getfoilcounts {
273: my @names;
274: my $truecnt=0;
275: my $falsecnt=0;
276: my $name;
277: if ( $Apache::response::foilgroup{'names'} ) {
278: @names= @{ $Apache::response::foilgroup{'names'} };
279: }
280: foreach $name (@names) {
281: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
282: $truecnt++;
283: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
284: $falsecnt++;
285: }
286: }
287: return ($truecnt,$falsecnt);
288: }
289:
290: sub format_prior_answer {
291: my ($mode,$answer,$other_data) = @_;
292: my $foil_data = $other_data->[0];
293: my %response = &Apache::lonnet::str2hash($answer);
294: my ($name) = keys(%response);
295: return '<span class="LC_prior_radiobutton">'.
296: $foil_data->{$name.'.text'}.'</span>';
297:
298: }
299:
300: sub displayallfoils {
301: my ($direction, $target)=@_;
302: my $result;
303: &Apache::lonxml::debug("survey style display");
304: my @names;
305: if ( $Apache::response::foilgroup{'names'} ) {
306: @names= @{ $Apache::response::foilgroup{'names'} };
307: }
308:
309: my $temp=0;
310: my $i =0;
311: my $id=$Apache::inputtags::response['-1'];
312: my $part=$Apache::inputtags::part;
313: my $lastresponse=
314: $Apache::lonhomework::history{"resource.$part.$id.submission"};
315: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
316: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
317: if (&Apache::response::show_answer() ) {
318: foreach my $name (@names) {
319: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
320: if (($direction eq 'horizontal') && ($target ne 'tex')) {
321: $result.="<td>";
322: } else {
323: if ($target eq 'tex') {
324: $result .= '\item \vskip -2mm ';
325: } else {
326: $result.="<br />";
327: }
328: }
329: if (defined($lastresponse{$name})) {
330: if ($target eq 'tex') {
331: $result .= '}';
332: } else {
333: $result.='<b>';
334: }
335: }
336: $result .= $Apache::response::foilgroup{$name.'.text'};
337: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
338: $result.='</b>';
339: }
340: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
341: }
342: }
343: } else {
344: foreach my $name (@names) {
345: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
346: if ($direction eq 'horizontal') {
347: $result.="<td>";
348: } else {
349: if ($target eq 'tex') {
350: $result .= '\item \vskip -2mm ';
351: } else {
352: $result.="<br />";
353: }
354: }
355: if ($target eq 'tex') {
356: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
357: $i++;
358: } else {
359: $result .= '<label>';
360: $result.="<input
361: onchange=\"javascript:setSubmittedPart('$part');\"
362: type=\"radio\"
363: name=\"HWVAL_$Apache::inputtags::response['-1']\"
364: value=\"$temp\" ";
365: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
366: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
367: '</label>';
368: }
369: $temp++;
370: if ($target ne 'tex') {
371: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
372: } else {
373: $result.='\vskip 0 mm ';
374: }
375: }
376: }
377: }
378:
379: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
380: return $result;
381: }
382:
383: =pod
384:
385: =item &whichfoils($max,$randomize)
386:
387: Randomizes the list of foils.
388: Respects
389: - each foils desire to be randomized
390: - the existance of Concept groups of foils (select 1 foil from each)
391: - and selects a single correct statement from all possilble true statments
392: - and limits it to a toal of $max foils
393:
394: WARNING: this routine uses the random number generator, it should only
395: be called once per target, otherwise it can cause randomness changes in
396: homework problems.
397:
398: Arguments
399: $max - maximum number of foils to select (including the true one)
400: (so a max of 5 is: 1 true, 4 false)
401:
402: $randomize - whether to randomize the listing of foils, by default
403: will randomize, only if randomize is 'no' will it not
404:
405: Returns
406: $answer - location in the array of the correct answer
407: @foils - array of foil names in to display order
408:
409: =cut
410:
411: sub whichfoils {
412: my ($max,$randomize)=@_;
413:
414: my @truelist;
415: my @falselist;
416: my @whichfalse =();
417: my ($truecnt,$falsecnt) = &getfoilcounts();
418: my $count=0;
419: # we will add in 1 of the true statements
420: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
421: my $answer=int(&Math::Random::random_uniform() * ($count));
422: &Apache::lonxml::debug("Count is $count, $answer is $answer");
423: my @names;
424: if ( $Apache::response::foilgroup{'names'} ) {
425: @names= @{ $Apache::response::foilgroup{'names'} };
426: }
427: if (&Apache::response::showallfoils()) {
428: @whichfalse=@names;
429: } elsif ($randomize eq 'no') {
430: &Apache::lonxml::debug("No randomization");
431: my $havetrue=0;
432: foreach my $name (@names) {
433: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
434: if (!$havetrue ) {
435: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
436: }
437: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
438: push (@whichfalse,$name);
439: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
440: } else {
441: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
442: }
443: }
444: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
445: &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
446: }
447: } else {
448: my $current=0;
449: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
450: my (%top,%bottom);
451: #first find out where everyone wants to be
452: foreach my $name (@names) {
453: $current++;
454: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
455: push (@truelist,$name);
456: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
457: $top{$name}=$current;
458: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
459: $bottom{$name}=$current;
460: }
461: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
462: push (@falselist,$name);
463: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
464: $top{$name}=$current;
465: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
466: $bottom{$name}=$current;
467: }
468: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
469: } else {
470: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
471: }
472: }
473: #pick a true statement
474: my $notrue=0;
475: if (scalar(@truelist) == 0) { $notrue=1; }
476: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
477: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
478: my (@toplist, @bottomlist);
479: my $topcount=0;
480: my $bottomcount=0;
481: # assign everyone to either toplist/bottomlist or whichfalse
482: # which false is randomized, toplist bottomlist are in order
483: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
484: &Apache::lonxml::debug("Have $#whichfalse max is $max");
485: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
486: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
487: $afalse=splice(@falselist,$afalse,1);
488: &Apache::lonxml::debug("Picked $afalse");
489: &Apache::lonhomework::showhash(('names'=>\@names));
490: &Apache::lonhomework::showhash(%top);
491: if ($top{$afalse}) {
492: $toplist[$top{$afalse}]=$afalse;
493: $topcount++;
494: } elsif ($bottom{$afalse}) {
495: $bottomlist[$bottom{$afalse}]=$afalse;
496: $bottomcount++;
497: } else {
498: push (@whichfalse,$afalse);
499: }
500: }
501: &Apache::lonxml::debug("Answer wants $answer");
502: my $truename=$truelist[$whichtrue];
503: my $dosplice=1;
504: if ($notrue && $Apache::lonhomework::type ne 'survey') {
505: $dosplice=0;
506: &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
507: }
508: #insert the true statement, keeping track of where it wants to be
509: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
510: $toplist[$top{$truename}]=$truename;
511: $answer=-1;
512: foreach my $top (reverse(@toplist)) {
513: if ($top) { $answer++;}
514: if ($top eq $truename) { last; }
515: }
516: $dosplice=0;
517: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
518: $bottomlist[$bottom{$truename}]=$truename;
519: $answer=-1;
520: foreach my $bot (@bottomlist) {
521: if ($bot) { $answer++;}
522: if ($bot eq $truename) { last; }
523: }
524: $answer+=$topcount+$#whichfalse+1;
525: $dosplice=0;
526: } else {
527: if ($topcount>0 || $bottomcount>0) {
528: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
529: + $topcount;
530: }
531: }
532: &Apache::lonxml::debug("Answer now wants $answer");
533: #add the top items to the top, bottom items to the bottom
534: for (my $i=0;$i<=$#toplist;$i++) {
535: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
536: }
537: for (my $i=0;$i<=$#bottomlist;$i++) {
538: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
539: }
540: #if the true statement is randomized insert it into the list
541: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
542: }
543: &Apache::lonxml::debug("Answer is $answer");
544: return ($answer,@whichfalse);
545: }
546:
547: sub displayfoils {
548: my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
549: my $result;
550:
551: my $part=$Apache::inputtags::part;
552: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
553: if ( ($target ne 'tex') &&
554: &Apache::response::show_answer() ) {
555: if ($direction eq 'horizontal') {
556: if ($target ne 'tex') {
557: $result.='<table><tr>';
558: }
559: }
560: foreach my $name (@{ $whichfoils }) {
561: if ($direction eq 'horizontal') {
562: if ($target ne 'tex') { $result.='<td>'; }
563: }
564: if ($target ne 'tex') {
565: $result.="<br />";
566: } else {
567: $result.='\item \vskip -2 mm ';
568: }
569: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
570: if ($target ne 'tex') {
571: $result.=&mt('Correct:').'<b>';
572: } else {
573: $result.=&mt('Correct:').' \textbf{';
574: }
575: } else {
576: $result.=&mt('Incorrect:');
577: }
578: if ($target eq 'web') { $result.="<label>"; }
579: $result.=$Apache::response::foilgroup{$name.'.text'};
580: if ($target eq 'web') { $result.="</label>"; }
581: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
582: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
583: }
584: if ($direction eq 'horizontal') {
585: if ($target ne 'tex') { $result.='</td>'; }
586: }
587: }
588: if ($direction eq 'horizontal') {
589: if ($target ne 'tex') {
590: $result.='</tr></table>';
591: }
592: }
593: } else {
594: my @alphabet = ('A'..'Z');
595: my $i = 0;
596: my $bubble_number = 0;
597: my $line = 0;
598: my $temp=0;
599: my $id=$Apache::inputtags::response['-1'];
600: my $part=$Apache::inputtags::part;
601: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
602: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
603: if ($target ne 'tex' && $direction eq 'horizontal') {
604: $result.="<table><tr>";
605: }
606: foreach my $name (@{ $whichfoils }) {
607: if ($target ne 'tex') {
608: if ($direction eq 'horizontal') {
609: $result.="<td>";
610: } else {
611: $result.="<br />";
612: }
613: }
614: if ($target ne 'tex') {
615: $result.= '<label>';
616: $result.=
617: "<input type=\"radio\"
618: onchange=\"javascript:setSubmittedPart('$part');\"
619: name=\"HWVAL_$Apache::inputtags::response['-1']\"
620: value=\"$temp\" ";
621: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
622: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
623: } else {
624: if ($Apache::lonhomework::type eq 'exam') {
625: if($bubble_number >= $bubbles_per_line) {
626: $line++;
627: $i = 0;
628: $bubble_number = 0;
629: $result.='\item[\textbf{'.($Apache::lonxml::counter+$line).'}.]';
630: }
631: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
632: $i++;
633: $bubble_number++;
634: } else {
635: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
636: }
637: }
638: if ($target ne 'tex' && $direction eq 'horizontal') {
639: $result.="</td>";
640: }
641: $temp++;
642: }
643: if ($target ne 'tex' && $direction eq 'horizontal') {
644: $result.="</tr></table>";
645: }
646: }
647: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
648: return $result;
649: }
650:
651: sub displayallanswers {
652: my @names;
653: if ( $Apache::response::foilgroup{'names'} ) {
654: @names= @{ $Apache::response::foilgroup{'names'} };
655: }
656: my $result=&Apache::response::answer_header('radiobuttonresponse');
657: foreach my $name (@names) {
658: $result.=&Apache::response::answer_part('radiobuttonresponse',
659: $Apache::response::foilgroup{$name.'.value'});
660: }
661: $result.=&Apache::response::answer_footer('radiobuttonresponse');
662: return $result;
663: }
664:
665: sub displayanswers {
666: my ($answer, $whichopt, $bubbles_per_line)=@_;
667: my $result;
668:
669: if ($Apache::lonhomework::type eq 'exam') {
670: my $line = int($answer/$bubbles_per_line);
671: my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
672: $result .= &Apache::response::answer_header('radiobuttonresponse',
673: $line);
674: $result .= &Apache::response::answer_part('radiobuttonresponse',
675: $correct);
676: } else {
677: $result .= &Apache::response::answer_header('radiobuttonresponse');
678: }
679: foreach my $name (@{ $whichopt }) {
680: $result.=&Apache::response::answer_part('radiobuttonresponse',
681: $Apache::response::foilgroup{$name.'.value'});
682: }
683: $result.=&Apache::response::answer_footer('radiobuttonresponse');
684: return $result;
685: }
686:
687: sub start_conceptgroup {
688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
689: $Apache::radiobuttonresponse::conceptgroup=1;
690: %Apache::response::conceptgroup=();
691: my $result;
692: if ($target eq 'edit') {
693: $result.=&Apache::edit::tag_start($target,$token);
694: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
695: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
696: } elsif ($target eq 'modified') {
697: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
698: $safeeval,'concept');
699: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
700: }
701: return $result;
702: }
703:
704: sub end_conceptgroup {
705: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
706: $Apache::radiobuttonresponse::conceptgroup=0;
707: my $result;
708: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
709: $target eq 'tex' || $target eq 'analyze') {
710: &Apache::response::pick_foil_for_concept($target,
711: ['value','text','location'],
712: \%Apache::hint::radiobutton,
713: $parstack,$safeeval);
714: } elsif ($target eq 'edit') {
715: $result=&Apache::edit::end_table();
716: }
717: return $result;
718: }
719:
720: sub insert_conceptgroup {
721: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
722: return $result;
723: }
724:
725: sub start_foil {
726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
727: my $result='';
728: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
729: &Apache::lonxml::startredirection;
730: if ($target eq 'analyze') {
731: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
732: }
733: } elsif ($target eq 'edit') {
734: $result=&Apache::edit::tag_start($target,$token);
735: $result.=&Apache::edit::text_arg('Name:','name',$token);
736: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
737: ['unused','true','false'],
738: $token);
739: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
740: $safeeval,'-3');
741: if ($randomize ne 'no') {
742: $result.=&Apache::edit::select_arg('Location:','location',
743: ['random','top','bottom'],$token);
744: }
745: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
746: } elsif ($target eq 'modified') {
747: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
748: $safeeval,'value','name',
749: 'location');
750: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
751: }
752: return $result;
753: }
754:
755: sub end_foil {
756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
757: my $text='';
758: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
759: $text=&Apache::lonxml::endredirection;
760: }
761: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
762: || $target eq 'tex' || $target eq 'analyze') {
763: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
764: if ($value ne 'unused') {
765: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
766: if ($name eq "") {
767: &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
768: $name=$Apache::lonxml::curdepth;
769: }
770: if (defined($Apache::response::foilnames{$name})) {
771: &Apache::lonxml::error(&mt('Foil name [_1] appears more than once. Foil names need to be unique.','<b><tt>'.$name.'</tt></b>'));
772: }
773: $Apache::response::foilnames{$name}++;
774: my $location =&Apache::lonxml::get_param('location',$parstack,
775: $safeeval);
776: if ( $Apache::radiobuttonresponse::conceptgroup
777: && !&Apache::response::showallfoils() ) {
778: push @{ $Apache::response::conceptgroup{'names'} }, $name;
779: $Apache::response::conceptgroup{"$name.value"} = $value;
780: $Apache::response::conceptgroup{"$name.text"} = $text;
781: $Apache::response::conceptgroup{"$name.location"} = $location;
782: } else {
783: push @{ $Apache::response::foilgroup{'names'} }, $name;
784: $Apache::response::foilgroup{"$name.value"} = $value;
785: $Apache::response::foilgroup{"$name.text"} = $text;
786: $Apache::response::foilgroup{"$name.location"} = $location;
787: }
788: }
789: }
790: return '';
791: }
792:
793: sub insert_foil {
794: return '
795: <foil name="" value="unused">
796: <startouttext />
797: <endouttext />
798: </foil>';
799: }
800: 1;
801: __END__
802:
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