1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.117 2007/06/20 21:43:59 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 $response;
149: if ($env{'form.submitted'} eq 'scantron') {
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: # Get an array of the lines... note offsets seem to go from 1??...
159:
160: my @responses;
161: for (my $i = 1; $i <= $bubble_lines; $i++) {
162: my $this_line = &Apache::response::getresponse($i);
163: push(@responses, $this_line);
164:
165: }
166: # Update the lonxml::counter so that the next problem
167: # Gets the right set of answers:
168:
169: &Apache::lonxml::increment_counter($bubble_lines-1);
170:
171: # This code assumes that unbubbled lines will be
172: # give empties. while bubbled lines nonblank.
173:
174: my $answer_line;
175: my $answer_value = ''; # By default no answer given...
176: my $num_bubbled_lines=0;
177: for (my $line_number = 0; $line_number < $bubble_lines; $line_number++) {
178: if ($responses[$line_number] ne "") {
179: $answer_line = $line_number;
180: $answer_value = $responses[$line_number];
181: last;
182: }
183: }
184:
185: $response = $answer_line * $bubbles_per_line + $answer_value;
186:
187:
188: } else {
189: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
190: }
191: if ( $response !~ /[0-9]+/) { return; }
192: my $part=$Apache::inputtags::part;
193: my $id = $Apache::inputtags::response['-1'];
194: my %responsehash;
195: $responsehash{$whichfoils[$response]}=$response;
196: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
197: my %previous=&Apache::response::check_for_previous($responsestr,
198: $part,$id);
199: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
200: $responsestr;
201: &Apache::lonxml::debug("submitted a $response<br />\n");
202: my $ad;
203: if ($response == $answer) {
204: $ad='EXACT_ANS';
205: } else {
206: $ad='INCORRECT';
207: }
208: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
209: &Apache::response::handle_previous(\%previous,$ad);
210: }
211:
212: sub end_foilgroup {
213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
214:
215: my $result;
216: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
217: $target eq 'tex' || $target eq 'analyze') {
218: my $style = $Apache::lonhomework::type;
219: my $direction = &Apache::lonxml::get_param('direction',$parstack,
220: $safeeval,'-2');
221: if ( $style eq 'survey' && $target ne 'analyze') {
222: if ($target eq 'web' || $target eq 'tex') {
223: $result=&displayallfoils($direction, $target);
224: } elsif ( $target eq 'answer' ) {
225: $result=&displayallanswers();
226: } elsif ( $target eq 'grade' ) {
227: $result=&storesurvey();
228: }
229: } else {
230: my $name;
231: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
232: '-2');
233: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
234: $safeeval,'-2');
235: if ($target eq 'web' || $target eq 'tex') {
236: $result=&displayfoils($target,$max,$randomize,$direction);
237: } elsif ($target eq 'answer' ) {
238: $result=&displayanswers($max,$randomize);
239: } elsif ( $target eq 'grade') {
240: &grade_response($max,$randomize);
241: } elsif ( $target eq 'analyze') {
242: my @shown = &whichfoils($max,$randomize);
243: &Apache::response::analyze_store_foilgroup(\@shown,
244: ['text','value','location']);
245: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
246: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
247: ('true','false'));
248: }
249: }
250: $Apache::lonxml::post_evaluate=0;
251: }
252: if ($target eq 'web') {
253: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
254: [\%Apache::response::foilgroup]);
255: }
256:
257: &Apache::response::poprandomnumber();
258: &Apache::lonxml::increment_counter();
259: return $result;
260: }
261:
262: sub getfoilcounts {
263: my @names;
264: my $truecnt=0;
265: my $falsecnt=0;
266: my $name;
267: if ( $Apache::response::foilgroup{'names'} ) {
268: @names= @{ $Apache::response::foilgroup{'names'} };
269: }
270: foreach $name (@names) {
271: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
272: $truecnt++;
273: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
274: $falsecnt++;
275: }
276: }
277: return ($truecnt,$falsecnt);
278: }
279:
280: sub format_prior_answer {
281: my ($mode,$answer,$other_data) = @_;
282: my $foil_data = $other_data->[0];
283: my %response = &Apache::lonnet::str2hash($answer);
284: my ($name) = keys(%response);
285: return '<span class="LC_prior_radiobutton">'.
286: $foil_data->{$name.'.text'}.'</span>';
287:
288: }
289:
290: sub displayallfoils {
291: my ($direction, $target)=@_;
292: my $result;
293: &Apache::lonxml::debug("survey style display");
294: my @names;
295: if ( $Apache::response::foilgroup{'names'} ) {
296: @names= @{ $Apache::response::foilgroup{'names'} };
297: }
298: my $temp=0;
299: my $i =0;
300: my $id=$Apache::inputtags::response['-1'];
301: my $part=$Apache::inputtags::part;
302: my $lastresponse=
303: $Apache::lonhomework::history{"resource.$part.$id.submission"};
304: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
305: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
306: if (&Apache::response::show_answer() ) {
307: foreach my $name (@names) {
308: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
309: if (($direction eq 'horizontal') && ($target ne 'tex')) {
310: $result.="<td>";
311: } else {
312: if ($target eq 'tex') {
313: $result .= '\item \vskip -2mm ';
314: } else {
315: $result.="<br />";
316: }
317: }
318: if (defined($lastresponse{$name})) {
319: if ($target eq 'tex') {
320: $result .= '}';
321: } else {
322: $result.='<b>';
323: }
324: }
325: $result .= $Apache::response::foilgroup{$name.'.text'};
326: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
327: $result.='</b>';
328: }
329: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
330: }
331: }
332: } else {
333: foreach my $name (@names) {
334: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
335: if ($direction eq 'horizontal') {
336: $result.="<td>";
337: } else {
338: if ($target eq 'tex') {
339: $result .= '\item \vskip -2mm ';
340: } else {
341: $result.="<br />";
342: }
343: }
344: if ($target eq 'tex') {
345: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
346: $i++;
347: } else {
348: $result .= '<label>';
349: $result.="<input
350: onchange=\"javascript:setSubmittedPart('$part');\"
351: type=\"radio\"
352: name=\"HWVAL_$Apache::inputtags::response['-1']\"
353: value=\"$temp\" ";
354: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
355: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
356: '</label>';
357: }
358: $temp++;
359: if ($target ne 'tex') {
360: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
361: } else {
362: $result.='\vskip 0 mm ';
363: }
364: }
365: }
366: }
367: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
368: return $result;
369: }
370:
371: sub whichfoils {
372: my ($max,$randomize)=@_;
373:
374: my @truelist;
375: my @falselist;
376: my @whichfalse =();
377: my ($truecnt,$falsecnt) = &getfoilcounts();
378: my $count=0;
379: # we will add in 1 of the true statements
380: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
381: my $answer=int(&Math::Random::random_uniform() * ($count));
382: &Apache::lonxml::debug("Count is $count, $answer is $answer");
383: my @names;
384: if ( $Apache::response::foilgroup{'names'} ) {
385: @names= @{ $Apache::response::foilgroup{'names'} };
386: }
387: if (&Apache::response::showallfoils()) {
388: @whichfalse=@names;
389: } elsif ($randomize eq 'no') {
390: &Apache::lonxml::debug("No randomization");
391: my $havetrue=0;
392: foreach my $name (@names) {
393: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
394: if (!$havetrue ) {
395: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
396: }
397: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
398: push (@whichfalse,$name);
399: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
400: } else {
401: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
402: }
403: }
404: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
405: &Apache::lonxml::error("There are no true statements available.<br />");
406: }
407: } else {
408: my $current=0;
409: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
410: my (%top,%bottom);
411: #first find out where everyone wants to be
412: foreach my $name (@names) {
413: $current++;
414: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
415: push (@truelist,$name);
416: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
417: $top{$name}=$current;
418: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
419: $bottom{$name}=$current;
420: }
421: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
422: push (@falselist,$name);
423: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
424: $top{$name}=$current;
425: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
426: $bottom{$name}=$current;
427: }
428: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
429: } else {
430: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
431: }
432: }
433: #pick a true statement
434: my $notrue=0;
435: if (scalar(@truelist) == 0) { $notrue=1; }
436: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
437: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
438: my (@toplist, @bottomlist);
439: my $topcount=0;
440: my $bottomcount=0;
441: # assign everyone to either toplist/bottomlist or whichfalse
442: # which false is randomized, toplist bottomlist are in order
443: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
444: &Apache::lonxml::debug("Have $#whichfalse max is $max");
445: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
446: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
447: $afalse=splice(@falselist,$afalse,1);
448: &Apache::lonxml::debug("Picked $afalse");
449: &Apache::lonhomework::showhash(('names'=>\@names));
450: &Apache::lonhomework::showhash(%top);
451: if ($top{$afalse}) {
452: $toplist[$top{$afalse}]=$afalse;
453: $topcount++;
454: } elsif ($bottom{$afalse}) {
455: $bottomlist[$bottom{$afalse}]=$afalse;
456: $bottomcount++;
457: } else {
458: push (@whichfalse,$afalse);
459: }
460: }
461: &Apache::lonxml::debug("Answer wants $answer");
462: my $truename=$truelist[$whichtrue];
463: my $dosplice=1;
464: if ($notrue && $Apache::lonhomework::type ne 'survey') {
465: $dosplice=0;
466: &Apache::lonxml::error("There are no true statements available.<br />");
467: }
468: #insert the true statement, keeping track of where it wants to be
469: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
470: $toplist[$top{$truename}]=$truename;
471: $answer=-1;
472: foreach my $top (reverse(@toplist)) {
473: if ($top) { $answer++;}
474: if ($top eq $truename) { last; }
475: }
476: $dosplice=0;
477: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
478: $bottomlist[$bottom{$truename}]=$truename;
479: $answer=-1;
480: foreach my $bot (@bottomlist) {
481: if ($bot) { $answer++;}
482: if ($bot eq $truename) { last; }
483: }
484: $answer+=$topcount+$#whichfalse+1;
485: $dosplice=0;
486: } else {
487: if ($topcount>0 || $bottomcount>0) {
488: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
489: + $topcount;
490: }
491: }
492: &Apache::lonxml::debug("Answer now wants $answer");
493: #add the top items to the top, bottom items to the bottom
494: for (my $i=0;$i<=$#toplist;$i++) {
495: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
496: }
497: for (my $i=0;$i<=$#bottomlist;$i++) {
498: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
499: }
500: #if the true statement is randomized insert it into the list
501: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
502: }
503: &Apache::lonxml::debug("Answer is $answer");
504: return ($answer,@whichfalse);
505: }
506:
507: sub displayfoils {
508: my ($target,$max,$randomize,$direction)=@_;
509: my $result;
510:
511: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
512: my $part=$Apache::inputtags::part;
513: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
514: if ( ($target ne 'tex') &&
515: &Apache::response::show_answer() ) {
516: if ($direction eq 'horizontal') {
517: if ($target ne 'tex') {
518: $result.='<table><tr>';
519: }
520: }
521: foreach my $name (@whichfoils) {
522: if ($direction eq 'horizontal') {
523: if ($target ne 'tex') { $result.='<td>'; }
524: }
525: if ($target ne 'tex') {
526: $result.="<br />";
527: } else {
528: $result.='\item \vskip -2 mm ';
529: }
530: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
531: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
532: } else {
533: $result.='Incorrect:';
534: }
535: if ($target eq 'web') { $result.="<label>"; }
536: $result.=$Apache::response::foilgroup{$name.'.text'};
537: if ($target eq 'web') { $result.="</label>"; }
538: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
539: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
540: }
541: if ($direction eq 'horizontal') {
542: if ($target ne 'tex') { $result.='</td>'; }
543: }
544: }
545: if ($direction eq 'horizontal') {
546: if ($target ne 'tex') {
547: $result.='</tr></table>';
548: }
549: }
550: } else {
551: my @alphabet = ('A'..'Z');
552: my $i = 0;
553: my $bubble_number = 0;
554: my $temp=0;
555: my $id=$Apache::inputtags::response['-1'];
556: my $part=$Apache::inputtags::part;
557: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
558: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
559: if ($target ne 'tex' && $direction eq 'horizontal') {
560: $result.="<table><tr>";
561: }
562: foreach my $name (@whichfoils) {
563: if ($target ne 'tex') {
564: if ($direction eq 'horizontal') {
565: $result.="<td>";
566: } else {
567: $result.="<br />";
568: }
569: }
570: if ($target ne 'tex') {
571: $result.= '<label>';
572: $result.=
573: "<input type=\"radio\"
574: onchange=\"javascript:setSubmittedPart('$part');\"
575: name=\"HWVAL_$Apache::inputtags::response['-1']\"
576: value=\"$temp\" ";
577: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
578: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
579: } else {
580: if ($Apache::lonhomework::type eq 'exam') {
581: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
582: $i++;
583: $bubble_number++;
584: if($bubble_number >= $bubbles_per_line) {
585: $i = 0;
586: $bubble_number = 0;
587: &Apache::lonxml::increment_counter(1);
588: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
589: }
590: } else {
591: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
592: }
593: }
594: if ($target ne 'tex' && $direction eq 'horizontal') {
595: $result.="</td>";
596: }
597: $temp++;
598: }
599: if ($target ne 'tex' && $direction eq 'horizontal') {
600: $result.="</tr></table>";
601: }
602: }
603: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
604: return $result;
605: }
606:
607: sub displayallanswers {
608: my @names;
609: if ( $Apache::response::foilgroup{'names'} ) {
610: @names= @{ $Apache::response::foilgroup{'names'} };
611: }
612:
613: my $result=&Apache::response::answer_header('radiobuttonresponse');
614: foreach my $name (@names) {
615: $result.=&Apache::response::answer_part('radiobuttonresponse',
616: $Apache::response::foilgroup{$name.'.value'});
617: }
618: $result.=&Apache::response::answer_footer('radiobuttonresponse');
619: return $result;
620: }
621:
622: sub displayanswers {
623: my ($max,$randomize)=@_;
624: my ($answer,@whichopt) = &whichfoils($max,$randomize);
625: my $result=&Apache::response::answer_header('radiobuttonresponse');
626: if ($Apache::lonhomework::type eq 'exam') {
627: my $correct = ('A'..'Z')[$answer];
628: $result.=&Apache::response::answer_part('radiobuttonresponse',
629: $correct);
630: }
631: foreach my $name (@whichopt) {
632: $result.=&Apache::response::answer_part('radiobuttonresponse',
633: $Apache::response::foilgroup{$name.'.value'});
634: }
635: $result.=&Apache::response::answer_footer('radiobuttonresponse');
636: return $result;
637: }
638:
639: sub start_conceptgroup {
640: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
641: $Apache::radiobuttonresponse::conceptgroup=1;
642: %Apache::response::conceptgroup=();
643: my $result;
644: if ($target eq 'edit') {
645: $result.=&Apache::edit::tag_start($target,$token);
646: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
647: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
648: } elsif ($target eq 'modified') {
649: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
650: $safeeval,'concept');
651: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
652: }
653: return $result;
654: }
655:
656: sub end_conceptgroup {
657: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
658: $Apache::radiobuttonresponse::conceptgroup=0;
659: my $result;
660: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
661: $target eq 'tex' || $target eq 'analyze') {
662: &Apache::response::pick_foil_for_concept($target,
663: ['value','text','location'],
664: \%Apache::hint::radiobutton,
665: $parstack,$safeeval);
666: } elsif ($target eq 'edit') {
667: $result=&Apache::edit::end_table();
668: }
669: return $result;
670: }
671:
672: sub insert_conceptgroup {
673: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
674: return $result;
675: }
676:
677: sub start_foil {
678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
679: my $result='';
680: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
681: &Apache::lonxml::startredirection;
682: if ($target eq 'analyze') {
683: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
684: }
685: } elsif ($target eq 'edit') {
686: $result=&Apache::edit::tag_start($target,$token);
687: $result.=&Apache::edit::text_arg('Name:','name',$token);
688: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
689: ['unused','true','false'],
690: $token);
691: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
692: $safeeval,'-3');
693: if ($randomize ne 'no') {
694: $result.=&Apache::edit::select_arg('Location:','location',
695: ['random','top','bottom'],$token);
696: }
697: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
698: } elsif ($target eq 'modified') {
699: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
700: $safeeval,'value','name',
701: 'location');
702: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
703: }
704: return $result;
705: }
706:
707: sub end_foil {
708: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
709: my $text='';
710: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
711: $text=&Apache::lonxml::endredirection;
712: }
713: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
714: || $target eq 'tex' || $target eq 'analyze') {
715: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
716: if ($value ne 'unused') {
717: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
718: if ($name eq "") {
719: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
720: $name=$Apache::lonxml::curdepth;
721: }
722: if (defined($Apache::response::foilnames{$name})) {
723: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
724: }
725: $Apache::response::foilnames{$name}++;
726: my $location =&Apache::lonxml::get_param('location',$parstack,
727: $safeeval);
728: if ( $Apache::radiobuttonresponse::conceptgroup
729: && !&Apache::response::showallfoils() ) {
730: push @{ $Apache::response::conceptgroup{'names'} }, $name;
731: $Apache::response::conceptgroup{"$name.value"} = $value;
732: $Apache::response::conceptgroup{"$name.text"} = $text;
733: $Apache::response::conceptgroup{"$name.location"} = $location;
734: } else {
735: push @{ $Apache::response::foilgroup{'names'} }, $name;
736: $Apache::response::foilgroup{"$name.value"} = $value;
737: $Apache::response::foilgroup{"$name.text"} = $text;
738: $Apache::response::foilgroup{"$name.location"} = $location;
739: }
740: }
741: }
742: return '';
743: }
744:
745: sub insert_foil {
746: return '
747: <foil name="" value="unused">
748: <startouttext />
749: <endouttext />
750: </foil>';
751: }
752: 1;
753: __END__
754:
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