1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.129 2007/10/15 09:47:29 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 $default_bubbles_per_line = 10;
37:
38:
39: BEGIN {
40: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
41: }
42:
43: sub bubble_line_count {
44: my ($numfoils, $bubbles_per_line) = @_;
45: my $bubble_lines;
46: $bubble_lines = int($numfoils / $bubbles_per_line);
47: if (($numfoils % $bubbles_per_line) != 0) {
48: $bubble_lines++;
49: }
50: return $bubble_lines;
51:
52: }
53:
54:
55: sub start_radiobuttonresponse {
56: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
57: my $result;
58:
59: #when in a radiobutton response use these
60: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
61: push (@Apache::lonxml::namespace,'radiobuttonresponse');
62: my $id = &Apache::response::start_response($parstack,$safeeval);
63:
64: %Apache::hint::radiobutton=();
65: undef(%Apache::response::foilnames);
66: if ($target eq 'meta') {
67: $result=&Apache::response::meta_package_write('radiobuttonresponse');
68: } elsif ($target eq 'edit' ) {
69: $result.=&Apache::edit::start_table($token).
70: '<tr><td>'.&Apache::lonxml::description($token).
71: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
72: "</td><td>Delete:".
73: &Apache::edit::deletelist($target,$token)
74: ."</td><td> ".&Apache::edit::end_row()
75: .&Apache::edit::start_spanning_row();
76: $result.=
77: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
78: $token,'4').
79: &Apache::edit::select_arg('Randomize Foil Order','randomize',
80: ['yes','no'],$token).
81: &Apache::edit::select_arg('Display Direction','direction',
82: ['vertical','horizontal'],$token).
83: &Apache::edit::end_row().
84: &Apache::edit::start_spanning_row()."\n";
85: } elsif ($target eq 'modified') {
86: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
87: $safeeval,'max',
88: 'randomize','direction');
89: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
90: } elsif ($target eq 'tex') {
91: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
92: undef,0);
93: if ($type eq '1') {
94: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
95: } elsif ($type eq 'A') {
96: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
97: } elsif ($type eq 'a') {
98: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
99: } elsif ($type eq 'i') {
100: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
101: } else {
102: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
103: }
104: $result .= '\begin{enumerate}';
105: } elsif ($target eq 'analyze') {
106: my $part_id="$Apache::inputtags::part.$id";
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: push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} },
254: $bubble_lines);
255: }
256: }
257: $Apache::lonxml::post_evaluate=0;
258: }
259: if ($target eq 'web') {
260: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
261: [\%Apache::response::foilgroup]);
262: }
263: &Apache::response::poprandomnumber();
264: $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
265: &Apache::lonxml::increment_counter($bubble_lines,
266: "$part.$id");
267: if ($target eq 'analyze') {
268: &Apache::lonhomework::set_bubble_lines();
269: }
270: return $result;
271: }
272:
273: sub getfoilcounts {
274: my @names;
275: my $truecnt=0;
276: my $falsecnt=0;
277: my $name;
278: if ( $Apache::response::foilgroup{'names'} ) {
279: @names= @{ $Apache::response::foilgroup{'names'} };
280: }
281: foreach $name (@names) {
282: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
283: $truecnt++;
284: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
285: $falsecnt++;
286: }
287: }
288: return ($truecnt,$falsecnt);
289: }
290:
291: sub format_prior_answer {
292: my ($mode,$answer,$other_data) = @_;
293: my $foil_data = $other_data->[0];
294: my %response = &Apache::lonnet::str2hash($answer);
295: my ($name) = keys(%response);
296: return '<span class="LC_prior_radiobutton">'.
297: $foil_data->{$name.'.text'}.'</span>';
298:
299: }
300:
301: sub displayallfoils {
302: my ($direction, $target)=@_;
303: my $result;
304: &Apache::lonxml::debug("survey style display");
305: my @names;
306: if ( $Apache::response::foilgroup{'names'} ) {
307: @names= @{ $Apache::response::foilgroup{'names'} };
308: }
309:
310: my $temp=0;
311: my $i =0;
312: my $id=$Apache::inputtags::response['-1'];
313: my $part=$Apache::inputtags::part;
314: my $lastresponse=
315: $Apache::lonhomework::history{"resource.$part.$id.submission"};
316: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
317: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
318: if (&Apache::response::show_answer() ) {
319: foreach my $name (@names) {
320: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
321: if (($direction eq 'horizontal') && ($target ne 'tex')) {
322: $result.="<td>";
323: } else {
324: if ($target eq 'tex') {
325: $result .= '\item \vskip -2mm ';
326: } else {
327: $result.="<br />";
328: }
329: }
330: if (defined($lastresponse{$name})) {
331: if ($target eq 'tex') {
332: $result .= '}';
333: } else {
334: $result.='<b>';
335: }
336: }
337: $result .= $Apache::response::foilgroup{$name.'.text'};
338: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
339: $result.='</b>';
340: }
341: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
342: }
343: }
344: } else {
345: foreach my $name (@names) {
346: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
347: if ($direction eq 'horizontal') {
348: $result.="<td>";
349: } else {
350: if ($target eq 'tex') {
351: $result .= '\item \vskip -2mm ';
352: } else {
353: $result.="<br />";
354: }
355: }
356: if ($target eq 'tex') {
357: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
358: $i++;
359: } else {
360: $result .= '<label>';
361: $result.="<input
362: onchange=\"javascript:setSubmittedPart('$part');\"
363: type=\"radio\"
364: name=\"HWVAL_$Apache::inputtags::response['-1']\"
365: value=\"$temp\" ";
366: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
367: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
368: '</label>';
369: }
370: $temp++;
371: if ($target ne 'tex') {
372: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
373: } else {
374: $result.='\vskip 0 mm ';
375: }
376: }
377: }
378: }
379:
380: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
381: return $result;
382: }
383:
384: =pod
385:
386: =item &whichfoils($max,$randomize)
387:
388: Randomizes the list of foils.
389: Respects
390: - each foils desire to be randomized
391: - the existance of Concept groups of foils (select 1 foil from each)
392: - and selects a single correct statement from all possilble true statments
393: - and limits it to a toal of $max foils
394:
395: WARNING: this routine uses the random number generator, it should only
396: be called once per target, otherwise it can cause randomness changes in
397: homework problems.
398:
399: Arguments
400: $max - maximum number of foils to select (including the true one)
401: (so a max of 5 is: 1 true, 4 false)
402:
403: $randomize - whether to randomize the listing of foils, by default
404: will randomize, only if randomize is 'no' will it not
405:
406: Returns
407: $answer - location in the array of the correct answer
408: @foils - array of foil names in to display order
409:
410: =cut
411:
412: sub whichfoils {
413: my ($max,$randomize)=@_;
414:
415: my @truelist;
416: my @falselist;
417: my @whichfalse =();
418: my ($truecnt,$falsecnt) = &getfoilcounts();
419: my $count=0;
420: # we will add in 1 of the true statements
421: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
422: my $answer=int(&Math::Random::random_uniform() * ($count));
423: &Apache::lonxml::debug("Count is $count, $answer is $answer");
424: my @names;
425: if ( $Apache::response::foilgroup{'names'} ) {
426: @names= @{ $Apache::response::foilgroup{'names'} };
427: }
428: if (&Apache::response::showallfoils()) {
429: @whichfalse=@names;
430: } elsif ($randomize eq 'no') {
431: &Apache::lonxml::debug("No randomization");
432: my $havetrue=0;
433: foreach my $name (@names) {
434: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
435: if (!$havetrue ) {
436: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
437: }
438: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
439: push (@whichfalse,$name);
440: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
441: } else {
442: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
443: }
444: }
445: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
446: &Apache::lonxml::error("There are no true statements available.<br />");
447: }
448: } else {
449: my $current=0;
450: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
451: my (%top,%bottom);
452: #first find out where everyone wants to be
453: foreach my $name (@names) {
454: $current++;
455: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
456: push (@truelist,$name);
457: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
458: $top{$name}=$current;
459: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
460: $bottom{$name}=$current;
461: }
462: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
463: push (@falselist,$name);
464: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
465: $top{$name}=$current;
466: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
467: $bottom{$name}=$current;
468: }
469: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
470: } else {
471: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
472: }
473: }
474: #pick a true statement
475: my $notrue=0;
476: if (scalar(@truelist) == 0) { $notrue=1; }
477: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
478: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
479: my (@toplist, @bottomlist);
480: my $topcount=0;
481: my $bottomcount=0;
482: # assign everyone to either toplist/bottomlist or whichfalse
483: # which false is randomized, toplist bottomlist are in order
484: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
485: &Apache::lonxml::debug("Have $#whichfalse max is $max");
486: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
487: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
488: $afalse=splice(@falselist,$afalse,1);
489: &Apache::lonxml::debug("Picked $afalse");
490: &Apache::lonhomework::showhash(('names'=>\@names));
491: &Apache::lonhomework::showhash(%top);
492: if ($top{$afalse}) {
493: $toplist[$top{$afalse}]=$afalse;
494: $topcount++;
495: } elsif ($bottom{$afalse}) {
496: $bottomlist[$bottom{$afalse}]=$afalse;
497: $bottomcount++;
498: } else {
499: push (@whichfalse,$afalse);
500: }
501: }
502: &Apache::lonxml::debug("Answer wants $answer");
503: my $truename=$truelist[$whichtrue];
504: my $dosplice=1;
505: if ($notrue && $Apache::lonhomework::type ne 'survey') {
506: $dosplice=0;
507: &Apache::lonxml::error("There are no true statements available.<br />");
508: }
509: #insert the true statement, keeping track of where it wants to be
510: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
511: $toplist[$top{$truename}]=$truename;
512: $answer=-1;
513: foreach my $top (reverse(@toplist)) {
514: if ($top) { $answer++;}
515: if ($top eq $truename) { last; }
516: }
517: $dosplice=0;
518: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
519: $bottomlist[$bottom{$truename}]=$truename;
520: $answer=-1;
521: foreach my $bot (@bottomlist) {
522: if ($bot) { $answer++;}
523: if ($bot eq $truename) { last; }
524: }
525: $answer+=$topcount+$#whichfalse+1;
526: $dosplice=0;
527: } else {
528: if ($topcount>0 || $bottomcount>0) {
529: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
530: + $topcount;
531: }
532: }
533: &Apache::lonxml::debug("Answer now wants $answer");
534: #add the top items to the top, bottom items to the bottom
535: for (my $i=0;$i<=$#toplist;$i++) {
536: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
537: }
538: for (my $i=0;$i<=$#bottomlist;$i++) {
539: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
540: }
541: #if the true statement is randomized insert it into the list
542: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
543: }
544: &Apache::lonxml::debug("Answer is $answer");
545: return ($answer,@whichfalse);
546: }
547:
548: sub displayfoils {
549: my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
550: my $result;
551:
552: my $part=$Apache::inputtags::part;
553: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
554: if ( ($target ne 'tex') &&
555: &Apache::response::show_answer() ) {
556: if ($direction eq 'horizontal') {
557: if ($target ne 'tex') {
558: $result.='<table><tr>';
559: }
560: }
561: foreach my $name (@{ $whichfoils }) {
562: if ($direction eq 'horizontal') {
563: if ($target ne 'tex') { $result.='<td>'; }
564: }
565: if ($target ne 'tex') {
566: $result.="<br />";
567: } else {
568: $result.='\item \vskip -2 mm ';
569: }
570: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
571: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
572: } else {
573: $result.='Incorrect:';
574: }
575: if ($target eq 'web') { $result.="<label>"; }
576: $result.=$Apache::response::foilgroup{$name.'.text'};
577: if ($target eq 'web') { $result.="</label>"; }
578: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
579: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
580: }
581: if ($direction eq 'horizontal') {
582: if ($target ne 'tex') { $result.='</td>'; }
583: }
584: }
585: if ($direction eq 'horizontal') {
586: if ($target ne 'tex') {
587: $result.='</tr></table>';
588: }
589: }
590: } else {
591: my @alphabet = ('A'..'Z');
592: my $i = 0;
593: my $bubble_number = 0;
594: my $line = 0;
595: my $temp=0;
596: my $id=$Apache::inputtags::response['-1'];
597: my $part=$Apache::inputtags::part;
598: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
599: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
600: if ($target ne 'tex' && $direction eq 'horizontal') {
601: $result.="<table><tr>";
602: }
603: foreach my $name (@{ $whichfoils }) {
604: if ($target ne 'tex') {
605: if ($direction eq 'horizontal') {
606: $result.="<td>";
607: } else {
608: $result.="<br />";
609: }
610: }
611: if ($target ne 'tex') {
612: $result.= '<label>';
613: $result.=
614: "<input type=\"radio\"
615: onchange=\"javascript:setSubmittedPart('$part');\"
616: name=\"HWVAL_$Apache::inputtags::response['-1']\"
617: value=\"$temp\" ";
618: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
619: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
620: } else {
621: if ($Apache::lonhomework::type eq 'exam') {
622: if($bubble_number >= $bubbles_per_line) {
623: $line++;
624: $i = 0;
625: $bubble_number = 0;
626: $result.='\item[\textbf{'.($Apache::lonxml::counter+$line).'}.]';
627: }
628: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
629: $i++;
630: $bubble_number++;
631: } else {
632: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
633: }
634: }
635: if ($target ne 'tex' && $direction eq 'horizontal') {
636: $result.="</td>";
637: }
638: $temp++;
639: }
640: if ($target ne 'tex' && $direction eq 'horizontal') {
641: $result.="</tr></table>";
642: }
643: }
644: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
645: return $result;
646: }
647:
648: sub displayallanswers {
649: my @names;
650: if ( $Apache::response::foilgroup{'names'} ) {
651: @names= @{ $Apache::response::foilgroup{'names'} };
652: }
653: my $result=&Apache::response::answer_header('radiobuttonresponse');
654: foreach my $name (@names) {
655: $result.=&Apache::response::answer_part('radiobuttonresponse',
656: $Apache::response::foilgroup{$name.'.value'});
657: }
658: $result.=&Apache::response::answer_footer('radiobuttonresponse');
659: return $result;
660: }
661:
662: sub displayanswers {
663: my ($answer, $whichopt, $bubbles_per_line)=@_;
664: my $result;
665:
666: if ($Apache::lonhomework::type eq 'exam') {
667: my $line = int($answer/$bubbles_per_line);
668: my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
669: $result .= &Apache::response::answer_header('radiobuttonresponse',
670: $line);
671: $result .= &Apache::response::answer_part('radiobuttonresponse',
672: $correct);
673: } else {
674: $result .= &Apache::response::answer_header('radiobuttonresponse');
675: }
676: foreach my $name (@{ $whichopt }) {
677: $result.=&Apache::response::answer_part('radiobuttonresponse',
678: $Apache::response::foilgroup{$name.'.value'});
679: }
680: $result.=&Apache::response::answer_footer('radiobuttonresponse');
681: return $result;
682: }
683:
684: sub start_conceptgroup {
685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
686: $Apache::radiobuttonresponse::conceptgroup=1;
687: %Apache::response::conceptgroup=();
688: my $result;
689: if ($target eq 'edit') {
690: $result.=&Apache::edit::tag_start($target,$token);
691: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
692: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
693: } elsif ($target eq 'modified') {
694: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
695: $safeeval,'concept');
696: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
697: }
698: return $result;
699: }
700:
701: sub end_conceptgroup {
702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
703: $Apache::radiobuttonresponse::conceptgroup=0;
704: my $result;
705: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
706: $target eq 'tex' || $target eq 'analyze') {
707: &Apache::response::pick_foil_for_concept($target,
708: ['value','text','location'],
709: \%Apache::hint::radiobutton,
710: $parstack,$safeeval);
711: } elsif ($target eq 'edit') {
712: $result=&Apache::edit::end_table();
713: }
714: return $result;
715: }
716:
717: sub insert_conceptgroup {
718: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
719: return $result;
720: }
721:
722: sub start_foil {
723: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
724: my $result='';
725: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
726: &Apache::lonxml::startredirection;
727: if ($target eq 'analyze') {
728: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
729: }
730: } elsif ($target eq 'edit') {
731: $result=&Apache::edit::tag_start($target,$token);
732: $result.=&Apache::edit::text_arg('Name:','name',$token);
733: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
734: ['unused','true','false'],
735: $token);
736: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
737: $safeeval,'-3');
738: if ($randomize ne 'no') {
739: $result.=&Apache::edit::select_arg('Location:','location',
740: ['random','top','bottom'],$token);
741: }
742: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
743: } elsif ($target eq 'modified') {
744: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
745: $safeeval,'value','name',
746: 'location');
747: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
748: }
749: return $result;
750: }
751:
752: sub end_foil {
753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
754: my $text='';
755: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
756: $text=&Apache::lonxml::endredirection;
757: }
758: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
759: || $target eq 'tex' || $target eq 'analyze') {
760: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
761: if ($value ne 'unused') {
762: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
763: if ($name eq "") {
764: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
765: $name=$Apache::lonxml::curdepth;
766: }
767: if (defined($Apache::response::foilnames{$name})) {
768: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
769: }
770: $Apache::response::foilnames{$name}++;
771: my $location =&Apache::lonxml::get_param('location',$parstack,
772: $safeeval);
773: if ( $Apache::radiobuttonresponse::conceptgroup
774: && !&Apache::response::showallfoils() ) {
775: push @{ $Apache::response::conceptgroup{'names'} }, $name;
776: $Apache::response::conceptgroup{"$name.value"} = $value;
777: $Apache::response::conceptgroup{"$name.text"} = $text;
778: $Apache::response::conceptgroup{"$name.location"} = $location;
779: } else {
780: push @{ $Apache::response::foilgroup{'names'} }, $name;
781: $Apache::response::foilgroup{"$name.value"} = $value;
782: $Apache::response::foilgroup{"$name.text"} = $text;
783: $Apache::response::foilgroup{"$name.location"} = $location;
784: }
785: }
786: }
787: return '';
788: }
789:
790: sub insert_foil {
791: return '
792: <foil name="" value="unused">
793: <startouttext />
794: <endouttext />
795: </foil>';
796: }
797: 1;
798: __END__
799:
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