1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.118 2007/06/20 22:36:52 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 $bubbles_per_line = 10;
37:
38: BEGIN {
39: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
40: }
41:
42: sub start_radiobuttonresponse {
43: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
44: my $result;
45:
46: #when in a radiobutton response use these
47: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
48: push (@Apache::lonxml::namespace,'radiobuttonresponse');
49: my $id = &Apache::response::start_response($parstack,$safeeval);
50: %Apache::hint::radiobutton=();
51: undef(%Apache::response::foilnames);
52: if ($target eq 'meta') {
53: $result=&Apache::response::meta_package_write('radiobuttonresponse');
54: } elsif ($target eq 'edit' ) {
55: $result.=&Apache::edit::start_table($token).
56: '<tr><td>'.&Apache::lonxml::description($token).
57: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
58: "</td><td>Delete:".
59: &Apache::edit::deletelist($target,$token)
60: ."</td><td> ".&Apache::edit::end_row()
61: .&Apache::edit::start_spanning_row();
62: $result.=
63: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
64: $token,'4').
65: &Apache::edit::select_arg('Randomize Foil Order','randomize',
66: ['yes','no'],$token).
67: &Apache::edit::select_arg('Display Direction','direction',
68: ['vertical','horizontal'],$token).
69: &Apache::edit::end_row().
70: &Apache::edit::start_spanning_row()."\n";
71: } elsif ($target eq 'modified') {
72: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
73: $safeeval,'max',
74: 'randomize','direction');
75: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
76: } elsif ($target eq 'tex') {
77: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
78: undef,0);
79: if ($type eq '1') {
80: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
81: } elsif ($type eq 'A') {
82: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
83: } elsif ($type eq 'a') {
84: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
85: } elsif ($type eq 'i') {
86: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
87: } else {
88: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
89: }
90: $result .= '\begin{enumerate}';
91: } elsif ($target eq 'analyze') {
92: my $part_id="$Apache::inputtags::part.$id";
93: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
94: }
95: return $result;
96: }
97:
98: sub end_radiobuttonresponse {
99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
100: my $result;
101: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
102: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
103: &Apache::response::end_response;
104: pop @Apache::lonxml::namespace;
105: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
106: undef(%Apache::response::foilnames);
107: return $result;
108: }
109:
110: %Apache::response::foilgroup=();
111: sub start_foilgroup {
112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
113: my $result;
114: %Apache::response::foilgroup=();
115: $Apache::radiobuttonresponse::conceptgroup=0;
116: &Apache::response::pushrandomnumber();
117: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
118: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
119: }
120: return $result;
121: }
122:
123: sub storesurvey {
124: if ( !&Apache::response::submitted() ) { return ''; }
125: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
126: &Apache::lonxml::debug("Here I am!:$response:");
127: if ( $response !~ /[0-9]+/) { return ''; }
128: my $part = $Apache::inputtags::part;
129: my $id = $Apache::inputtags::response['-1'];
130: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
131: my %responsehash;
132: $responsehash{$whichfoils[$response]}=$response;
133: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
134: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
135: $responsestr;
136: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
137: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
138: &Apache::response::handle_previous(\%previous,$ad);
139: &Apache::lonxml::debug("submitted a $response<br />\n");
140: return '';
141: }
142:
143: sub grade_response {
144: my ($max,$randomize)=@_;
145: #keep the random numbers the same must always call this
146: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
147: if ( !&Apache::response::submitted() ) { return; }
148: my $response;
149:
150: # Need to know how many foils we have so that I know how many
151: # bubble lines to consume:
152:
153: my $numfoils = scalar @whichfoils;
154: my $bubble_lines = int($numfoils / $bubbles_per_line);
155: if (($numfoils % $bubbles_per_line) != 0) {
156: $bubble_lines++; # Partial line of bubbles too.
157: }
158:
159:
160: if ($env{'form.submitted'} eq 'scantron') {
161: $response = &Apache::response::getresponse(1,undef,$bubble_lines,
162: $bubbles_per_line);
163:
164: } else {
165: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
166: }
167: &Apache::lonxml::increment_counter($bubble_lines-1);
168:
169: if ( $response !~ /[0-9]+/) { return; }
170: my $part=$Apache::inputtags::part;
171: my $id = $Apache::inputtags::response['-1'];
172: my %responsehash;
173: $responsehash{$whichfoils[$response]}=$response;
174: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
175: my %previous=&Apache::response::check_for_previous($responsestr,
176: $part,$id);
177: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
178: $responsestr;
179: &Apache::lonxml::debug("submitted a $response<br />\n");
180: my $ad;
181: if ($response == $answer) {
182: $ad='EXACT_ANS';
183: } else {
184: $ad='INCORRECT';
185: }
186: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
187: &Apache::response::handle_previous(\%previous,$ad);
188: }
189:
190: sub end_foilgroup {
191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
192:
193: my $result;
194: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
195: $target eq 'tex' || $target eq 'analyze') {
196: my $style = $Apache::lonhomework::type;
197: my $direction = &Apache::lonxml::get_param('direction',$parstack,
198: $safeeval,'-2');
199: if ( $style eq 'survey' && $target ne 'analyze') {
200: if ($target eq 'web' || $target eq 'tex') {
201: $result=&displayallfoils($direction, $target);
202: } elsif ( $target eq 'answer' ) {
203: $result=&displayallanswers();
204: } elsif ( $target eq 'grade' ) {
205: $result=&storesurvey();
206: }
207: } else {
208: my $name;
209: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
210: '-2');
211: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
212: $safeeval,'-2');
213: if ($target eq 'web' || $target eq 'tex') {
214: $result=&displayfoils($target,$max,$randomize,$direction);
215: } elsif ($target eq 'answer' ) {
216: $result=&displayanswers($max,$randomize);
217: } elsif ( $target eq 'grade') {
218: &grade_response($max,$randomize);
219: } elsif ( $target eq 'analyze') {
220: my @shown = &whichfoils($max,$randomize);
221: &Apache::response::analyze_store_foilgroup(\@shown,
222: ['text','value','location']);
223: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
224: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
225: ('true','false'));
226: }
227: }
228: $Apache::lonxml::post_evaluate=0;
229: }
230: if ($target eq 'web') {
231: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
232: [\%Apache::response::foilgroup]);
233: }
234:
235: &Apache::response::poprandomnumber();
236: &Apache::lonxml::increment_counter();
237: return $result;
238: }
239:
240: sub getfoilcounts {
241: my @names;
242: my $truecnt=0;
243: my $falsecnt=0;
244: my $name;
245: if ( $Apache::response::foilgroup{'names'} ) {
246: @names= @{ $Apache::response::foilgroup{'names'} };
247: }
248: foreach $name (@names) {
249: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
250: $truecnt++;
251: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
252: $falsecnt++;
253: }
254: }
255: return ($truecnt,$falsecnt);
256: }
257:
258: sub format_prior_answer {
259: my ($mode,$answer,$other_data) = @_;
260: my $foil_data = $other_data->[0];
261: my %response = &Apache::lonnet::str2hash($answer);
262: my ($name) = keys(%response);
263: return '<span class="LC_prior_radiobutton">'.
264: $foil_data->{$name.'.text'}.'</span>';
265:
266: }
267:
268: sub displayallfoils {
269: my ($direction, $target)=@_;
270: my $result;
271: &Apache::lonxml::debug("survey style display");
272: my @names;
273: if ( $Apache::response::foilgroup{'names'} ) {
274: @names= @{ $Apache::response::foilgroup{'names'} };
275: }
276: my $temp=0;
277: my $i =0;
278: my $id=$Apache::inputtags::response['-1'];
279: my $part=$Apache::inputtags::part;
280: my $lastresponse=
281: $Apache::lonhomework::history{"resource.$part.$id.submission"};
282: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
283: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
284: if (&Apache::response::show_answer() ) {
285: foreach my $name (@names) {
286: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
287: if (($direction eq 'horizontal') && ($target ne 'tex')) {
288: $result.="<td>";
289: } else {
290: if ($target eq 'tex') {
291: $result .= '\item \vskip -2mm ';
292: } else {
293: $result.="<br />";
294: }
295: }
296: if (defined($lastresponse{$name})) {
297: if ($target eq 'tex') {
298: $result .= '}';
299: } else {
300: $result.='<b>';
301: }
302: }
303: $result .= $Apache::response::foilgroup{$name.'.text'};
304: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
305: $result.='</b>';
306: }
307: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
308: }
309: }
310: } else {
311: foreach my $name (@names) {
312: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
313: if ($direction eq 'horizontal') {
314: $result.="<td>";
315: } else {
316: if ($target eq 'tex') {
317: $result .= '\item \vskip -2mm ';
318: } else {
319: $result.="<br />";
320: }
321: }
322: if ($target eq 'tex') {
323: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
324: $i++;
325: } else {
326: $result .= '<label>';
327: $result.="<input
328: onchange=\"javascript:setSubmittedPart('$part');\"
329: type=\"radio\"
330: name=\"HWVAL_$Apache::inputtags::response['-1']\"
331: value=\"$temp\" ";
332: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
333: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
334: '</label>';
335: }
336: $temp++;
337: if ($target ne 'tex') {
338: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
339: } else {
340: $result.='\vskip 0 mm ';
341: }
342: }
343: }
344: }
345: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
346: return $result;
347: }
348:
349: sub whichfoils {
350: my ($max,$randomize)=@_;
351:
352: my @truelist;
353: my @falselist;
354: my @whichfalse =();
355: my ($truecnt,$falsecnt) = &getfoilcounts();
356: my $count=0;
357: # we will add in 1 of the true statements
358: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
359: my $answer=int(&Math::Random::random_uniform() * ($count));
360: &Apache::lonxml::debug("Count is $count, $answer is $answer");
361: my @names;
362: if ( $Apache::response::foilgroup{'names'} ) {
363: @names= @{ $Apache::response::foilgroup{'names'} };
364: }
365: if (&Apache::response::showallfoils()) {
366: @whichfalse=@names;
367: } elsif ($randomize eq 'no') {
368: &Apache::lonxml::debug("No randomization");
369: my $havetrue=0;
370: foreach my $name (@names) {
371: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
372: if (!$havetrue ) {
373: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
374: }
375: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
376: push (@whichfalse,$name);
377: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
378: } else {
379: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
380: }
381: }
382: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
383: &Apache::lonxml::error("There are no true statements available.<br />");
384: }
385: } else {
386: my $current=0;
387: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
388: my (%top,%bottom);
389: #first find out where everyone wants to be
390: foreach my $name (@names) {
391: $current++;
392: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
393: push (@truelist,$name);
394: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
395: $top{$name}=$current;
396: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
397: $bottom{$name}=$current;
398: }
399: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
400: push (@falselist,$name);
401: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
402: $top{$name}=$current;
403: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
404: $bottom{$name}=$current;
405: }
406: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
407: } else {
408: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
409: }
410: }
411: #pick a true statement
412: my $notrue=0;
413: if (scalar(@truelist) == 0) { $notrue=1; }
414: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
415: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
416: my (@toplist, @bottomlist);
417: my $topcount=0;
418: my $bottomcount=0;
419: # assign everyone to either toplist/bottomlist or whichfalse
420: # which false is randomized, toplist bottomlist are in order
421: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
422: &Apache::lonxml::debug("Have $#whichfalse max is $max");
423: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
424: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
425: $afalse=splice(@falselist,$afalse,1);
426: &Apache::lonxml::debug("Picked $afalse");
427: &Apache::lonhomework::showhash(('names'=>\@names));
428: &Apache::lonhomework::showhash(%top);
429: if ($top{$afalse}) {
430: $toplist[$top{$afalse}]=$afalse;
431: $topcount++;
432: } elsif ($bottom{$afalse}) {
433: $bottomlist[$bottom{$afalse}]=$afalse;
434: $bottomcount++;
435: } else {
436: push (@whichfalse,$afalse);
437: }
438: }
439: &Apache::lonxml::debug("Answer wants $answer");
440: my $truename=$truelist[$whichtrue];
441: my $dosplice=1;
442: if ($notrue && $Apache::lonhomework::type ne 'survey') {
443: $dosplice=0;
444: &Apache::lonxml::error("There are no true statements available.<br />");
445: }
446: #insert the true statement, keeping track of where it wants to be
447: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
448: $toplist[$top{$truename}]=$truename;
449: $answer=-1;
450: foreach my $top (reverse(@toplist)) {
451: if ($top) { $answer++;}
452: if ($top eq $truename) { last; }
453: }
454: $dosplice=0;
455: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
456: $bottomlist[$bottom{$truename}]=$truename;
457: $answer=-1;
458: foreach my $bot (@bottomlist) {
459: if ($bot) { $answer++;}
460: if ($bot eq $truename) { last; }
461: }
462: $answer+=$topcount+$#whichfalse+1;
463: $dosplice=0;
464: } else {
465: if ($topcount>0 || $bottomcount>0) {
466: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
467: + $topcount;
468: }
469: }
470: &Apache::lonxml::debug("Answer now wants $answer");
471: #add the top items to the top, bottom items to the bottom
472: for (my $i=0;$i<=$#toplist;$i++) {
473: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
474: }
475: for (my $i=0;$i<=$#bottomlist;$i++) {
476: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
477: }
478: #if the true statement is randomized insert it into the list
479: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
480: }
481: &Apache::lonxml::debug("Answer is $answer");
482: return ($answer,@whichfalse);
483: }
484:
485: sub displayfoils {
486: my ($target,$max,$randomize,$direction)=@_;
487: my $result;
488:
489: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
490: my $part=$Apache::inputtags::part;
491: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
492: if ( ($target ne 'tex') &&
493: &Apache::response::show_answer() ) {
494: if ($direction eq 'horizontal') {
495: if ($target ne 'tex') {
496: $result.='<table><tr>';
497: }
498: }
499: foreach my $name (@whichfoils) {
500: if ($direction eq 'horizontal') {
501: if ($target ne 'tex') { $result.='<td>'; }
502: }
503: if ($target ne 'tex') {
504: $result.="<br />";
505: } else {
506: $result.='\item \vskip -2 mm ';
507: }
508: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
509: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
510: } else {
511: $result.='Incorrect:';
512: }
513: if ($target eq 'web') { $result.="<label>"; }
514: $result.=$Apache::response::foilgroup{$name.'.text'};
515: if ($target eq 'web') { $result.="</label>"; }
516: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
517: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
518: }
519: if ($direction eq 'horizontal') {
520: if ($target ne 'tex') { $result.='</td>'; }
521: }
522: }
523: if ($direction eq 'horizontal') {
524: if ($target ne 'tex') {
525: $result.='</tr></table>';
526: }
527: }
528: } else {
529: my @alphabet = ('A'..'Z');
530: my $i = 0;
531: my $bubble_number = 0;
532: my $temp=0;
533: my $id=$Apache::inputtags::response['-1'];
534: my $part=$Apache::inputtags::part;
535: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
536: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
537: if ($target ne 'tex' && $direction eq 'horizontal') {
538: $result.="<table><tr>";
539: }
540: foreach my $name (@whichfoils) {
541: if ($target ne 'tex') {
542: if ($direction eq 'horizontal') {
543: $result.="<td>";
544: } else {
545: $result.="<br />";
546: }
547: }
548: if ($target ne 'tex') {
549: $result.= '<label>';
550: $result.=
551: "<input type=\"radio\"
552: onchange=\"javascript:setSubmittedPart('$part');\"
553: name=\"HWVAL_$Apache::inputtags::response['-1']\"
554: value=\"$temp\" ";
555: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
556: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
557: } else {
558: if ($Apache::lonhomework::type eq 'exam') {
559: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
560: $i++;
561: $bubble_number++;
562: if($bubble_number >= $bubbles_per_line) {
563: $i = 0;
564: $bubble_number = 0;
565: &Apache::lonxml::increment_counter(1);
566: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
567: }
568: } else {
569: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
570: }
571: }
572: if ($target ne 'tex' && $direction eq 'horizontal') {
573: $result.="</td>";
574: }
575: $temp++;
576: }
577: if ($target ne 'tex' && $direction eq 'horizontal') {
578: $result.="</tr></table>";
579: }
580: }
581: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
582: return $result;
583: }
584:
585: sub displayallanswers {
586: my @names;
587: if ( $Apache::response::foilgroup{'names'} ) {
588: @names= @{ $Apache::response::foilgroup{'names'} };
589: }
590:
591: my $result=&Apache::response::answer_header('radiobuttonresponse');
592: foreach my $name (@names) {
593: $result.=&Apache::response::answer_part('radiobuttonresponse',
594: $Apache::response::foilgroup{$name.'.value'});
595: }
596: $result.=&Apache::response::answer_footer('radiobuttonresponse');
597: return $result;
598: }
599:
600: sub displayanswers {
601: my ($max,$randomize)=@_;
602: my ($answer,@whichopt) = &whichfoils($max,$randomize);
603: my $result=&Apache::response::answer_header('radiobuttonresponse');
604: if ($Apache::lonhomework::type eq 'exam') {
605: my $correct = ('A'..'Z')[$answer];
606: $result.=&Apache::response::answer_part('radiobuttonresponse',
607: $correct);
608: }
609: foreach my $name (@whichopt) {
610: $result.=&Apache::response::answer_part('radiobuttonresponse',
611: $Apache::response::foilgroup{$name.'.value'});
612: }
613: $result.=&Apache::response::answer_footer('radiobuttonresponse');
614: return $result;
615: }
616:
617: sub start_conceptgroup {
618: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
619: $Apache::radiobuttonresponse::conceptgroup=1;
620: %Apache::response::conceptgroup=();
621: my $result;
622: if ($target eq 'edit') {
623: $result.=&Apache::edit::tag_start($target,$token);
624: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
625: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
626: } elsif ($target eq 'modified') {
627: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
628: $safeeval,'concept');
629: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
630: }
631: return $result;
632: }
633:
634: sub end_conceptgroup {
635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
636: $Apache::radiobuttonresponse::conceptgroup=0;
637: my $result;
638: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
639: $target eq 'tex' || $target eq 'analyze') {
640: &Apache::response::pick_foil_for_concept($target,
641: ['value','text','location'],
642: \%Apache::hint::radiobutton,
643: $parstack,$safeeval);
644: } elsif ($target eq 'edit') {
645: $result=&Apache::edit::end_table();
646: }
647: return $result;
648: }
649:
650: sub insert_conceptgroup {
651: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
652: return $result;
653: }
654:
655: sub start_foil {
656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
657: my $result='';
658: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
659: &Apache::lonxml::startredirection;
660: if ($target eq 'analyze') {
661: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
662: }
663: } elsif ($target eq 'edit') {
664: $result=&Apache::edit::tag_start($target,$token);
665: $result.=&Apache::edit::text_arg('Name:','name',$token);
666: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
667: ['unused','true','false'],
668: $token);
669: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
670: $safeeval,'-3');
671: if ($randomize ne 'no') {
672: $result.=&Apache::edit::select_arg('Location:','location',
673: ['random','top','bottom'],$token);
674: }
675: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
676: } elsif ($target eq 'modified') {
677: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
678: $safeeval,'value','name',
679: 'location');
680: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
681: }
682: return $result;
683: }
684:
685: sub end_foil {
686: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
687: my $text='';
688: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
689: $text=&Apache::lonxml::endredirection;
690: }
691: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
692: || $target eq 'tex' || $target eq 'analyze') {
693: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
694: if ($value ne 'unused') {
695: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
696: if ($name eq "") {
697: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
698: $name=$Apache::lonxml::curdepth;
699: }
700: if (defined($Apache::response::foilnames{$name})) {
701: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
702: }
703: $Apache::response::foilnames{$name}++;
704: my $location =&Apache::lonxml::get_param('location',$parstack,
705: $safeeval);
706: if ( $Apache::radiobuttonresponse::conceptgroup
707: && !&Apache::response::showallfoils() ) {
708: push @{ $Apache::response::conceptgroup{'names'} }, $name;
709: $Apache::response::conceptgroup{"$name.value"} = $value;
710: $Apache::response::conceptgroup{"$name.text"} = $text;
711: $Apache::response::conceptgroup{"$name.location"} = $location;
712: } else {
713: push @{ $Apache::response::foilgroup{'names'} }, $name;
714: $Apache::response::foilgroup{"$name.value"} = $value;
715: $Apache::response::foilgroup{"$name.text"} = $text;
716: $Apache::response::foilgroup{"$name.location"} = $location;
717: }
718: }
719: }
720: return '';
721: }
722:
723: sub insert_foil {
724: return '
725: <foil name="" value="unused">
726: <startouttext />
727: <endouttext />
728: </foil>';
729: }
730: 1;
731: __END__
732:
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