1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.125 2007/08/06 20:52:54 albertel 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:
60:
61: #when in a radiobutton response use these
62: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
63: push (@Apache::lonxml::namespace,'radiobuttonresponse');
64: my $id = &Apache::response::start_response($parstack,$safeeval);
65:
66: %Apache::hint::radiobutton=();
67: undef(%Apache::response::foilnames);
68: if ($target eq 'meta') {
69: $result=&Apache::response::meta_package_write('radiobuttonresponse');
70: } elsif ($target eq 'edit' ) {
71: $result.=&Apache::edit::start_table($token).
72: '<tr><td>'.&Apache::lonxml::description($token).
73: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
74: "</td><td>Delete:".
75: &Apache::edit::deletelist($target,$token)
76: ."</td><td> ".&Apache::edit::end_row()
77: .&Apache::edit::start_spanning_row();
78: $result.=
79: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
80: $token,'4').
81: &Apache::edit::select_arg('Randomize Foil Order','randomize',
82: ['yes','no'],$token).
83: &Apache::edit::select_arg('Display Direction','direction',
84: ['vertical','horizontal'],$token).
85: &Apache::edit::end_row().
86: &Apache::edit::start_spanning_row()."\n";
87: } elsif ($target eq 'modified') {
88: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
89: $safeeval,'max',
90: 'randomize','direction');
91: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
92: } elsif ($target eq 'tex') {
93: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
94: undef,0);
95: if ($type eq '1') {
96: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
97: } elsif ($type eq 'A') {
98: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
99: } elsif ($type eq 'a') {
100: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
101: } elsif ($type eq 'i') {
102: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
103: } else {
104: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
105: }
106: $result .= '\begin{enumerate}';
107: } elsif ($target eq 'analyze') {
108: my $part_id="$Apache::inputtags::part.$id";
109: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
110: }
111: return $result;
112: }
113:
114: sub end_radiobuttonresponse {
115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
116: my $result;
117: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
118: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
119: &Apache::response::end_response;
120: pop @Apache::lonxml::namespace;
121: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
122: undef(%Apache::response::foilnames);
123: return $result;
124: }
125:
126: %Apache::response::foilgroup=();
127: sub start_foilgroup {
128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
129: my $result;
130: %Apache::response::foilgroup=();
131: $Apache::radiobuttonresponse::conceptgroup=0;
132: &Apache::response::pushrandomnumber();
133: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
134: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
135: }
136: return $result;
137: }
138:
139: sub storesurvey {
140: if ( !&Apache::response::submitted() ) { return ''; }
141: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
142: &Apache::lonxml::debug("Here I am!:$response:");
143: if ( $response !~ /[0-9]+/) { return ''; }
144: my $part = $Apache::inputtags::part;
145: my $id = $Apache::inputtags::response['-1'];
146: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
147: my %responsehash;
148: $responsehash{$whichfoils[$response]}=$response;
149: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
150: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
151: $responsestr;
152: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
153: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
154: &Apache::response::handle_previous(\%previous,$ad);
155: &Apache::lonxml::debug("submitted a $response<br />\n");
156: return '';
157: }
158:
159:
160: sub grade_response {
161: my ($answer, $whichfoils, $bubbles_per_line)=@_;
162:
163: if ( !&Apache::response::submitted() ) { return; }
164: my $response;
165:
166: if ($env{'form.submitted'} eq 'scantron') {
167: $response = &Apache::response::getresponse(1,undef,
168: &bubble_line_count(scalar(@{ $whichfoils}),
169: $bubbles_per_line),
170: $bubbles_per_line);
171:
172: } else {
173: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
174: }
175:
176:
177: if ( $response !~ /[0-9]+/) { return; }
178: my $part=$Apache::inputtags::part;
179: my $id = $Apache::inputtags::response['-1'];
180: my %responsehash;
181: $responsehash{$whichfoils->[$response]}=$response;
182: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
183: my %previous=&Apache::response::check_for_previous($responsestr,
184: $part,$id);
185: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
186: $responsestr;
187: &Apache::lonxml::debug("submitted a $response<br />\n");
188: my $ad;
189: if ($response == $answer) {
190: $ad='EXACT_ANS';
191: } else {
192: $ad='INCORRECT';
193: }
194: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
195: &Apache::response::handle_previous(\%previous,$ad);
196: }
197:
198: sub end_foilgroup {
199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
200:
201: my $result;
202: my $bubble_lines;
203: my $bubbles_per_line;
204: my $answer_count;
205: my $id = $Apache::inputtags::response['-1'];
206: $bubbles_per_line =
207: &Apache::response::get_response_param($Apache::inputtags::part."_$id",
208: 'numbubbles',
209: $default_bubbles_per_line);
210:
211:
212: if ($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: $answer_count = scalar(@{$Apache::response::foilgroup{'names'}});
226:
227: } else {
228:
229: my $name;
230: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
231: '-2');
232: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
233: $safeeval,'-2');
234: my ($answer, @shown) = &whichfoils($max, $randomize);
235: $answer_count = scalar(@shown);
236:
237: if ($target eq 'web' || $target eq 'tex') {
238: $result=&displayfoils($target,
239: $answer, \@shown,
240: $direction,
241: $bubbles_per_line);
242: } elsif ($target eq 'answer' ) {
243: $result=&displayanswers($answer, \@shown, $bubbles_per_line);
244: } elsif ( $target eq 'grade') {
245: &grade_response($answer, \@shown, $bubbles_per_line);
246: } elsif ( $target eq 'analyze') {
247: &Apache::response::analyze_store_foilgroup(\@shown,
248: ['text','value','location']);
249: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
250: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
251: ('true','false'));
252: }
253: }
254: $Apache::lonxml::post_evaluate=0;
255: }
256: if ($target eq 'web') {
257: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
258: [\%Apache::response::foilgroup]);
259: }
260: $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
261: &Apache::response::poprandomnumber();
262: &Apache::lonxml::increment_counter($bubble_lines);
263: return $result;
264: }
265:
266: sub getfoilcounts {
267: my @names;
268: my $truecnt=0;
269: my $falsecnt=0;
270: my $name;
271: if ( $Apache::response::foilgroup{'names'} ) {
272: @names= @{ $Apache::response::foilgroup{'names'} };
273: }
274: foreach $name (@names) {
275: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
276: $truecnt++;
277: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
278: $falsecnt++;
279: }
280: }
281: return ($truecnt,$falsecnt);
282: }
283:
284: sub format_prior_answer {
285: my ($mode,$answer,$other_data) = @_;
286: my $foil_data = $other_data->[0];
287: my %response = &Apache::lonnet::str2hash($answer);
288: my ($name) = keys(%response);
289: return '<span class="LC_prior_radiobutton">'.
290: $foil_data->{$name.'.text'}.'</span>';
291:
292: }
293:
294: sub displayallfoils {
295: my ($direction, $target)=@_;
296: my $result;
297: &Apache::lonxml::debug("survey style display");
298: my @names;
299: if ( $Apache::response::foilgroup{'names'} ) {
300: @names= @{ $Apache::response::foilgroup{'names'} };
301: }
302:
303: my $temp=0;
304: my $i =0;
305: my $id=$Apache::inputtags::response['-1'];
306: my $part=$Apache::inputtags::part;
307: my $lastresponse=
308: $Apache::lonhomework::history{"resource.$part.$id.submission"};
309: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
310: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
311: if (&Apache::response::show_answer() ) {
312: foreach my $name (@names) {
313: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
314: if (($direction eq 'horizontal') && ($target ne 'tex')) {
315: $result.="<td>";
316: } else {
317: if ($target eq 'tex') {
318: $result .= '\item \vskip -2mm ';
319: } else {
320: $result.="<br />";
321: }
322: }
323: if (defined($lastresponse{$name})) {
324: if ($target eq 'tex') {
325: $result .= '}';
326: } else {
327: $result.='<b>';
328: }
329: }
330: $result .= $Apache::response::foilgroup{$name.'.text'};
331: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
332: $result.='</b>';
333: }
334: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
335: }
336: }
337: } else {
338: foreach my $name (@names) {
339: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
340: if ($direction eq 'horizontal') {
341: $result.="<td>";
342: } else {
343: if ($target eq 'tex') {
344: $result .= '\item \vskip -2mm ';
345: } else {
346: $result.="<br />";
347: }
348: }
349: if ($target eq 'tex') {
350: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
351: $i++;
352: } else {
353: $result .= '<label>';
354: $result.="<input
355: onchange=\"javascript:setSubmittedPart('$part');\"
356: type=\"radio\"
357: name=\"HWVAL_$Apache::inputtags::response['-1']\"
358: value=\"$temp\" ";
359: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
360: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
361: '</label>';
362: }
363: $temp++;
364: if ($target ne 'tex') {
365: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
366: } else {
367: $result.='\vskip 0 mm ';
368: }
369: }
370: }
371: }
372:
373: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
374: return $result;
375: }
376:
377: =pod
378:
379: =item &whichfoils($max,$randomize)
380:
381: Randomizes the list of foils.
382: Respects
383: - each foils desire to be randomized
384: - the existance of Concept groups of foils (select 1 foil from each)
385: - and selects a single correct statement from all possilble true statments
386: - and limits it to a toal of $max foils
387:
388: WARNING: this routine uses the random number generator, it should only
389: be called once per target, otherwise it can cause randomness changes in
390: homework problems.
391:
392: Arguments
393: $max - maximum number of foils to select (including the true one)
394: (so a max of 5 is: 1 true, 4 false)
395:
396: $randomize - whether to randomize the listing of foils, by default
397: will randomize, only if randomize is 'no' will it not
398:
399: Returns
400: $answer - location in the array of the correct answer
401: @foils - array of foil names in to display order
402:
403: =cut
404:
405: sub whichfoils {
406: my ($max,$randomize)=@_;
407:
408: my @truelist;
409: my @falselist;
410: my @whichfalse =();
411: my ($truecnt,$falsecnt) = &getfoilcounts();
412: my $count=0;
413: # we will add in 1 of the true statements
414: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
415: my $answer=int(&Math::Random::random_uniform() * ($count));
416: &Apache::lonxml::debug("Count is $count, $answer is $answer");
417: my @names;
418: if ( $Apache::response::foilgroup{'names'} ) {
419: @names= @{ $Apache::response::foilgroup{'names'} };
420: }
421: if (&Apache::response::showallfoils()) {
422: @whichfalse=@names;
423: } elsif ($randomize eq 'no') {
424: &Apache::lonxml::debug("No randomization");
425: my $havetrue=0;
426: foreach my $name (@names) {
427: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
428: if (!$havetrue ) {
429: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
430: }
431: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
432: push (@whichfalse,$name);
433: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
434: } else {
435: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
436: }
437: }
438: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
439: &Apache::lonxml::error("There are no true statements available.<br />");
440: }
441: } else {
442: my $current=0;
443: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
444: my (%top,%bottom);
445: #first find out where everyone wants to be
446: foreach my $name (@names) {
447: $current++;
448: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
449: push (@truelist,$name);
450: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
451: $top{$name}=$current;
452: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
453: $bottom{$name}=$current;
454: }
455: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
456: push (@falselist,$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{$name.'.value'} eq 'unused') {
463: } else {
464: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
465: }
466: }
467: #pick a true statement
468: my $notrue=0;
469: if (scalar(@truelist) == 0) { $notrue=1; }
470: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
471: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
472: my (@toplist, @bottomlist);
473: my $topcount=0;
474: my $bottomcount=0;
475: # assign everyone to either toplist/bottomlist or whichfalse
476: # which false is randomized, toplist bottomlist are in order
477: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
478: &Apache::lonxml::debug("Have $#whichfalse max is $max");
479: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
480: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
481: $afalse=splice(@falselist,$afalse,1);
482: &Apache::lonxml::debug("Picked $afalse");
483: &Apache::lonhomework::showhash(('names'=>\@names));
484: &Apache::lonhomework::showhash(%top);
485: if ($top{$afalse}) {
486: $toplist[$top{$afalse}]=$afalse;
487: $topcount++;
488: } elsif ($bottom{$afalse}) {
489: $bottomlist[$bottom{$afalse}]=$afalse;
490: $bottomcount++;
491: } else {
492: push (@whichfalse,$afalse);
493: }
494: }
495: &Apache::lonxml::debug("Answer wants $answer");
496: my $truename=$truelist[$whichtrue];
497: my $dosplice=1;
498: if ($notrue && $Apache::lonhomework::type ne 'survey') {
499: $dosplice=0;
500: &Apache::lonxml::error("There are no true statements available.<br />");
501: }
502: #insert the true statement, keeping track of where it wants to be
503: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
504: $toplist[$top{$truename}]=$truename;
505: $answer=-1;
506: foreach my $top (reverse(@toplist)) {
507: if ($top) { $answer++;}
508: if ($top eq $truename) { last; }
509: }
510: $dosplice=0;
511: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
512: $bottomlist[$bottom{$truename}]=$truename;
513: $answer=-1;
514: foreach my $bot (@bottomlist) {
515: if ($bot) { $answer++;}
516: if ($bot eq $truename) { last; }
517: }
518: $answer+=$topcount+$#whichfalse+1;
519: $dosplice=0;
520: } else {
521: if ($topcount>0 || $bottomcount>0) {
522: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
523: + $topcount;
524: }
525: }
526: &Apache::lonxml::debug("Answer now wants $answer");
527: #add the top items to the top, bottom items to the bottom
528: for (my $i=0;$i<=$#toplist;$i++) {
529: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
530: }
531: for (my $i=0;$i<=$#bottomlist;$i++) {
532: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
533: }
534: #if the true statement is randomized insert it into the list
535: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
536: }
537: &Apache::lonxml::debug("Answer is $answer");
538: return ($answer,@whichfalse);
539: }
540:
541: sub displayfoils {
542: my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
543: my $result;
544:
545: my $part=$Apache::inputtags::part;
546: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
547: if ( ($target ne 'tex') &&
548: &Apache::response::show_answer() ) {
549: if ($direction eq 'horizontal') {
550: if ($target ne 'tex') {
551: $result.='<table><tr>';
552: }
553: }
554: foreach my $name (@{ $whichfoils }) {
555: if ($direction eq 'horizontal') {
556: if ($target ne 'tex') { $result.='<td>'; }
557: }
558: if ($target ne 'tex') {
559: $result.="<br />";
560: } else {
561: $result.='\item \vskip -2 mm ';
562: }
563: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
564: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
565: } else {
566: $result.='Incorrect:';
567: }
568: if ($target eq 'web') { $result.="<label>"; }
569: $result.=$Apache::response::foilgroup{$name.'.text'};
570: if ($target eq 'web') { $result.="</label>"; }
571: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
572: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
573: }
574: if ($direction eq 'horizontal') {
575: if ($target ne 'tex') { $result.='</td>'; }
576: }
577: }
578: if ($direction eq 'horizontal') {
579: if ($target ne 'tex') {
580: $result.='</tr></table>';
581: }
582: }
583: } else {
584: my @alphabet = ('A'..'Z');
585: my $i = 0;
586: my $bubble_number = 0;
587: my $line = 0;
588: my $temp=0;
589: my $id=$Apache::inputtags::response['-1'];
590: my $part=$Apache::inputtags::part;
591: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
592: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
593: if ($target ne 'tex' && $direction eq 'horizontal') {
594: $result.="<table><tr>";
595: }
596: foreach my $name (@{ $whichfoils }) {
597: if ($target ne 'tex') {
598: if ($direction eq 'horizontal') {
599: $result.="<td>";
600: } else {
601: $result.="<br />";
602: }
603: }
604: if ($target ne 'tex') {
605: $result.= '<label>';
606: $result.=
607: "<input type=\"radio\"
608: onchange=\"javascript:setSubmittedPart('$part');\"
609: name=\"HWVAL_$Apache::inputtags::response['-1']\"
610: value=\"$temp\" ";
611: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
612: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
613: } else {
614: if ($Apache::lonhomework::type eq 'exam') {
615: if($bubble_number >= $bubbles_per_line) {
616: $line++;
617: $i = 0;
618: $bubble_number = 0;
619: $result.='\item[\textbf{'.($Apache::lonxml::counter+$line).'}.]';
620: }
621: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
622: $i++;
623: $bubble_number++;
624: } else {
625: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
626: }
627: }
628: if ($target ne 'tex' && $direction eq 'horizontal') {
629: $result.="</td>";
630: }
631: $temp++;
632: }
633: if ($target ne 'tex' && $direction eq 'horizontal') {
634: $result.="</tr></table>";
635: }
636: }
637: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
638: return $result;
639: }
640:
641: sub displayallanswers {
642: my @names;
643: if ( $Apache::response::foilgroup{'names'} ) {
644: @names= @{ $Apache::response::foilgroup{'names'} };
645: }
646: my $result=&Apache::response::answer_header('radiobuttonresponse');
647: foreach my $name (@names) {
648: $result.=&Apache::response::answer_part('radiobuttonresponse',
649: $Apache::response::foilgroup{$name.'.value'});
650: }
651: $result.=&Apache::response::answer_footer('radiobuttonresponse');
652: return $result;
653: }
654:
655: sub displayanswers {
656: my ($answer, $whichopt, $bubbles_per_line)=@_;
657: my $result;
658:
659: if ($Apache::lonhomework::type eq 'exam') {
660: my $line = int($answer/$bubbles_per_line);
661: my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
662: $result .= &Apache::response::answer_header('radiobuttonresponse',
663: $line);
664: $result .= &Apache::response::answer_part('radiobuttonresponse',
665: $correct);
666: } else {
667: $result .= &Apache::response::answer_header('radiobuttonresponse');
668: }
669: foreach my $name (@{ $whichopt }) {
670: $result.=&Apache::response::answer_part('radiobuttonresponse',
671: $Apache::response::foilgroup{$name.'.value'});
672: }
673: $result.=&Apache::response::answer_footer('radiobuttonresponse');
674: return $result;
675: }
676:
677: sub start_conceptgroup {
678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
679: $Apache::radiobuttonresponse::conceptgroup=1;
680: %Apache::response::conceptgroup=();
681: my $result;
682: if ($target eq 'edit') {
683: $result.=&Apache::edit::tag_start($target,$token);
684: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
685: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
686: } elsif ($target eq 'modified') {
687: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
688: $safeeval,'concept');
689: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
690: }
691: return $result;
692: }
693:
694: sub end_conceptgroup {
695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
696: $Apache::radiobuttonresponse::conceptgroup=0;
697: my $result;
698: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
699: $target eq 'tex' || $target eq 'analyze') {
700: &Apache::response::pick_foil_for_concept($target,
701: ['value','text','location'],
702: \%Apache::hint::radiobutton,
703: $parstack,$safeeval);
704: } elsif ($target eq 'edit') {
705: $result=&Apache::edit::end_table();
706: }
707: return $result;
708: }
709:
710: sub insert_conceptgroup {
711: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
712: return $result;
713: }
714:
715: sub start_foil {
716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
717: my $result='';
718: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
719: &Apache::lonxml::startredirection;
720: if ($target eq 'analyze') {
721: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
722: }
723: } elsif ($target eq 'edit') {
724: $result=&Apache::edit::tag_start($target,$token);
725: $result.=&Apache::edit::text_arg('Name:','name',$token);
726: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
727: ['unused','true','false'],
728: $token);
729: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
730: $safeeval,'-3');
731: if ($randomize ne 'no') {
732: $result.=&Apache::edit::select_arg('Location:','location',
733: ['random','top','bottom'],$token);
734: }
735: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
736: } elsif ($target eq 'modified') {
737: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
738: $safeeval,'value','name',
739: 'location');
740: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
741: }
742: return $result;
743: }
744:
745: sub end_foil {
746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
747: my $text='';
748: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
749: $text=&Apache::lonxml::endredirection;
750: }
751: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
752: || $target eq 'tex' || $target eq 'analyze') {
753: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
754: if ($value ne 'unused') {
755: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
756: if ($name eq "") {
757: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
758: $name=$Apache::lonxml::curdepth;
759: }
760: if (defined($Apache::response::foilnames{$name})) {
761: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
762: }
763: $Apache::response::foilnames{$name}++;
764: my $location =&Apache::lonxml::get_param('location',$parstack,
765: $safeeval);
766: if ( $Apache::radiobuttonresponse::conceptgroup
767: && !&Apache::response::showallfoils() ) {
768: push @{ $Apache::response::conceptgroup{'names'} }, $name;
769: $Apache::response::conceptgroup{"$name.value"} = $value;
770: $Apache::response::conceptgroup{"$name.text"} = $text;
771: $Apache::response::conceptgroup{"$name.location"} = $location;
772: } else {
773: push @{ $Apache::response::foilgroup{'names'} }, $name;
774: $Apache::response::foilgroup{"$name.value"} = $value;
775: $Apache::response::foilgroup{"$name.text"} = $text;
776: $Apache::response::foilgroup{"$name.location"} = $location;
777: }
778: }
779: }
780: return '';
781: }
782:
783: sub insert_foil {
784: return '
785: <foil name="" value="unused">
786: <startouttext />
787: <endouttext />
788: </foil>';
789: }
790: 1;
791: __END__
792:
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