1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.116 2007/06/19 10:00:23 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: # blank while bubbled lines nonblank.
173: # .. multiple answers awards the student 'INCORRECT'.
174: # This is done by setting resopnse to "Multiple" which will
175: # not match anything.
176: #.. otherwise response is set to the line*$bubble_per_line+answer
177: #
178: # --- note:
179: # If it is not possible to do double bubble detection
180: # easily in grades.pm separating this loop makes it pretty
181: # easy to do it here.
182: # Just count the number of non-blank entries, and
183: # below the loop, check for non-blank entries != 1
184: # and report a wrong answer if so.
185: #
186: my $answer_line;
187: my $answer_value = ''; # By default no answer given...
188: my $num_bubbled_lines=0;
189: for (my $line_number = 0; $line_number < $bubble_lines; $line_number++) {
190: if ($responses[$line_number] ne "") {
191: $answer_line = $line_number;
192: $answer_value = $responses[$line_number];
193: last;
194: }
195: }
196:
197: $response = $answer_line * $bubbles_per_line + $answer_value;
198:
199:
200: } else {
201: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
202: }
203: if ( $response !~ /[0-9]+/) { return; }
204: my $part=$Apache::inputtags::part;
205: my $id = $Apache::inputtags::response['-1'];
206: my %responsehash;
207: $responsehash{$whichfoils[$response]}=$response;
208: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
209: my %previous=&Apache::response::check_for_previous($responsestr,
210: $part,$id);
211: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
212: $responsestr;
213: &Apache::lonxml::debug("submitted a $response<br />\n");
214: my $ad;
215: if ($response == $answer) {
216: $ad='EXACT_ANS';
217: } else {
218: $ad='INCORRECT';
219: }
220: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
221: &Apache::response::handle_previous(\%previous,$ad);
222: }
223:
224: sub end_foilgroup {
225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
226:
227: my $result;
228: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
229: $target eq 'tex' || $target eq 'analyze') {
230: my $style = $Apache::lonhomework::type;
231: my $direction = &Apache::lonxml::get_param('direction',$parstack,
232: $safeeval,'-2');
233: if ( $style eq 'survey' && $target ne 'analyze') {
234: if ($target eq 'web' || $target eq 'tex') {
235: $result=&displayallfoils($direction, $target);
236: } elsif ( $target eq 'answer' ) {
237: $result=&displayallanswers();
238: } elsif ( $target eq 'grade' ) {
239: $result=&storesurvey();
240: }
241: } else {
242: my $name;
243: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
244: '-2');
245: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
246: $safeeval,'-2');
247: if ($target eq 'web' || $target eq 'tex') {
248: $result=&displayfoils($target,$max,$randomize,$direction);
249: } elsif ($target eq 'answer' ) {
250: $result=&displayanswers($max,$randomize);
251: } elsif ( $target eq 'grade') {
252: &grade_response($max,$randomize);
253: } elsif ( $target eq 'analyze') {
254: my @shown = &whichfoils($max,$randomize);
255: &Apache::response::analyze_store_foilgroup(\@shown,
256: ['text','value','location']);
257: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
258: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
259: ('true','false'));
260: }
261: }
262: $Apache::lonxml::post_evaluate=0;
263: }
264: if ($target eq 'web') {
265: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
266: [\%Apache::response::foilgroup]);
267: }
268:
269: &Apache::response::poprandomnumber();
270: &Apache::lonxml::increment_counter();
271: return $result;
272: }
273:
274: sub getfoilcounts {
275: my @names;
276: my $truecnt=0;
277: my $falsecnt=0;
278: my $name;
279: if ( $Apache::response::foilgroup{'names'} ) {
280: @names= @{ $Apache::response::foilgroup{'names'} };
281: }
282: foreach $name (@names) {
283: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
284: $truecnt++;
285: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
286: $falsecnt++;
287: }
288: }
289: return ($truecnt,$falsecnt);
290: }
291:
292: sub format_prior_answer {
293: my ($mode,$answer,$other_data) = @_;
294: my $foil_data = $other_data->[0];
295: my %response = &Apache::lonnet::str2hash($answer);
296: my ($name) = keys(%response);
297: return '<span class="LC_prior_radiobutton">'.
298: $foil_data->{$name.'.text'}.'</span>';
299:
300: }
301:
302: sub displayallfoils {
303: my ($direction, $target)=@_;
304: my $result;
305: &Apache::lonxml::debug("survey style display");
306: my @names;
307: if ( $Apache::response::foilgroup{'names'} ) {
308: @names= @{ $Apache::response::foilgroup{'names'} };
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: $result.='\vskip 0 mm ';
375: }
376: }
377: }
378: }
379: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
380: return $result;
381: }
382:
383: sub whichfoils {
384: my ($max,$randomize)=@_;
385:
386: my @truelist;
387: my @falselist;
388: my @whichfalse =();
389: my ($truecnt,$falsecnt) = &getfoilcounts();
390: my $count=0;
391: # we will add in 1 of the true statements
392: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
393: my $answer=int(&Math::Random::random_uniform() * ($count));
394: &Apache::lonxml::debug("Count is $count, $answer is $answer");
395: my @names;
396: if ( $Apache::response::foilgroup{'names'} ) {
397: @names= @{ $Apache::response::foilgroup{'names'} };
398: }
399: if (&Apache::response::showallfoils()) {
400: @whichfalse=@names;
401: } elsif ($randomize eq 'no') {
402: &Apache::lonxml::debug("No randomization");
403: my $havetrue=0;
404: foreach my $name (@names) {
405: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
406: if (!$havetrue ) {
407: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
408: }
409: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
410: push (@whichfalse,$name);
411: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
412: } else {
413: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
414: }
415: }
416: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
417: &Apache::lonxml::error("There are no true statements available.<br />");
418: }
419: } else {
420: my $current=0;
421: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
422: my (%top,%bottom);
423: #first find out where everyone wants to be
424: foreach my $name (@names) {
425: $current++;
426: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
427: push (@truelist,$name);
428: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
429: $top{$name}=$current;
430: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
431: $bottom{$name}=$current;
432: }
433: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
434: push (@falselist,$name);
435: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
436: $top{$name}=$current;
437: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
438: $bottom{$name}=$current;
439: }
440: } elsif ($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: #pick a true statement
446: my $notrue=0;
447: if (scalar(@truelist) == 0) { $notrue=1; }
448: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
449: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
450: my (@toplist, @bottomlist);
451: my $topcount=0;
452: my $bottomcount=0;
453: # assign everyone to either toplist/bottomlist or whichfalse
454: # which false is randomized, toplist bottomlist are in order
455: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
456: &Apache::lonxml::debug("Have $#whichfalse max is $max");
457: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
458: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
459: $afalse=splice(@falselist,$afalse,1);
460: &Apache::lonxml::debug("Picked $afalse");
461: &Apache::lonhomework::showhash(('names'=>\@names));
462: &Apache::lonhomework::showhash(%top);
463: if ($top{$afalse}) {
464: $toplist[$top{$afalse}]=$afalse;
465: $topcount++;
466: } elsif ($bottom{$afalse}) {
467: $bottomlist[$bottom{$afalse}]=$afalse;
468: $bottomcount++;
469: } else {
470: push (@whichfalse,$afalse);
471: }
472: }
473: &Apache::lonxml::debug("Answer wants $answer");
474: my $truename=$truelist[$whichtrue];
475: my $dosplice=1;
476: if ($notrue && $Apache::lonhomework::type ne 'survey') {
477: $dosplice=0;
478: &Apache::lonxml::error("There are no true statements available.<br />");
479: }
480: #insert the true statement, keeping track of where it wants to be
481: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
482: $toplist[$top{$truename}]=$truename;
483: $answer=-1;
484: foreach my $top (reverse(@toplist)) {
485: if ($top) { $answer++;}
486: if ($top eq $truename) { last; }
487: }
488: $dosplice=0;
489: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
490: $bottomlist[$bottom{$truename}]=$truename;
491: $answer=-1;
492: foreach my $bot (@bottomlist) {
493: if ($bot) { $answer++;}
494: if ($bot eq $truename) { last; }
495: }
496: $answer+=$topcount+$#whichfalse+1;
497: $dosplice=0;
498: } else {
499: if ($topcount>0 || $bottomcount>0) {
500: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
501: + $topcount;
502: }
503: }
504: &Apache::lonxml::debug("Answer now wants $answer");
505: #add the top items to the top, bottom items to the bottom
506: for (my $i=0;$i<=$#toplist;$i++) {
507: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
508: }
509: for (my $i=0;$i<=$#bottomlist;$i++) {
510: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
511: }
512: #if the true statement is randomized insert it into the list
513: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
514: }
515: &Apache::lonxml::debug("Answer is $answer");
516: return ($answer,@whichfalse);
517: }
518:
519: sub displayfoils {
520: my ($target,$max,$randomize,$direction)=@_;
521: my $result;
522:
523: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
524: my $part=$Apache::inputtags::part;
525: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
526: if ( ($target ne 'tex') &&
527: &Apache::response::show_answer() ) {
528: if ($direction eq 'horizontal') {
529: if ($target ne 'tex') {
530: $result.='<table><tr>';
531: }
532: }
533: foreach my $name (@whichfoils) {
534: if ($direction eq 'horizontal') {
535: if ($target ne 'tex') { $result.='<td>'; }
536: }
537: if ($target ne 'tex') {
538: $result.="<br />";
539: } else {
540: $result.='\item \vskip -2 mm ';
541: }
542: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
543: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
544: } else {
545: $result.='Incorrect:';
546: }
547: if ($target eq 'web') { $result.="<label>"; }
548: $result.=$Apache::response::foilgroup{$name.'.text'};
549: if ($target eq 'web') { $result.="</label>"; }
550: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
551: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
552: }
553: if ($direction eq 'horizontal') {
554: if ($target ne 'tex') { $result.='</td>'; }
555: }
556: }
557: if ($direction eq 'horizontal') {
558: if ($target ne 'tex') {
559: $result.='</tr></table>';
560: }
561: }
562: } else {
563: my @alphabet = ('A'..'Z');
564: my $i = 0;
565: my $bubble_number = 0;
566: my $temp=0;
567: my $id=$Apache::inputtags::response['-1'];
568: my $part=$Apache::inputtags::part;
569: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
570: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
571: if ($target ne 'tex' && $direction eq 'horizontal') {
572: $result.="<table><tr>";
573: }
574: foreach my $name (@whichfoils) {
575: if ($target ne 'tex') {
576: if ($direction eq 'horizontal') {
577: $result.="<td>";
578: } else {
579: $result.="<br />";
580: }
581: }
582: if ($target ne 'tex') {
583: $result.= '<label>';
584: $result.=
585: "<input type=\"radio\"
586: onchange=\"javascript:setSubmittedPart('$part');\"
587: name=\"HWVAL_$Apache::inputtags::response['-1']\"
588: value=\"$temp\" ";
589: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
590: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
591: } else {
592: if ($Apache::lonhomework::type eq 'exam') {
593: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
594: $i++;
595: $bubble_number++;
596: if($bubble_number >= $bubbles_per_line) {
597: $i = 0;
598: $bubble_number = 0;
599: &Apache::lonxml::increment_counter(1);
600: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
601: }
602: } else {
603: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
604: }
605: }
606: if ($target ne 'tex' && $direction eq 'horizontal') {
607: $result.="</td>";
608: }
609: $temp++;
610: }
611: if ($target ne 'tex' && $direction eq 'horizontal') {
612: $result.="</tr></table>";
613: }
614: }
615: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
616: return $result;
617: }
618:
619: sub displayallanswers {
620: my @names;
621: if ( $Apache::response::foilgroup{'names'} ) {
622: @names= @{ $Apache::response::foilgroup{'names'} };
623: }
624:
625: my $result=&Apache::response::answer_header('radiobuttonresponse');
626: foreach my $name (@names) {
627: $result.=&Apache::response::answer_part('radiobuttonresponse',
628: $Apache::response::foilgroup{$name.'.value'});
629: }
630: $result.=&Apache::response::answer_footer('radiobuttonresponse');
631: return $result;
632: }
633:
634: sub displayanswers {
635: my ($max,$randomize)=@_;
636: my ($answer,@whichopt) = &whichfoils($max,$randomize);
637: my $result=&Apache::response::answer_header('radiobuttonresponse');
638: if ($Apache::lonhomework::type eq 'exam') {
639: my $correct = ('A'..'Z')[$answer];
640: $result.=&Apache::response::answer_part('radiobuttonresponse',
641: $correct);
642: }
643: foreach my $name (@whichopt) {
644: $result.=&Apache::response::answer_part('radiobuttonresponse',
645: $Apache::response::foilgroup{$name.'.value'});
646: }
647: $result.=&Apache::response::answer_footer('radiobuttonresponse');
648: return $result;
649: }
650:
651: sub start_conceptgroup {
652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
653: $Apache::radiobuttonresponse::conceptgroup=1;
654: %Apache::response::conceptgroup=();
655: my $result;
656: if ($target eq 'edit') {
657: $result.=&Apache::edit::tag_start($target,$token);
658: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
659: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
660: } elsif ($target eq 'modified') {
661: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
662: $safeeval,'concept');
663: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
664: }
665: return $result;
666: }
667:
668: sub end_conceptgroup {
669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
670: $Apache::radiobuttonresponse::conceptgroup=0;
671: my $result;
672: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
673: $target eq 'tex' || $target eq 'analyze') {
674: &Apache::response::pick_foil_for_concept($target,
675: ['value','text','location'],
676: \%Apache::hint::radiobutton,
677: $parstack,$safeeval);
678: } elsif ($target eq 'edit') {
679: $result=&Apache::edit::end_table();
680: }
681: return $result;
682: }
683:
684: sub insert_conceptgroup {
685: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
686: return $result;
687: }
688:
689: sub start_foil {
690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
691: my $result='';
692: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
693: &Apache::lonxml::startredirection;
694: if ($target eq 'analyze') {
695: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
696: }
697: } elsif ($target eq 'edit') {
698: $result=&Apache::edit::tag_start($target,$token);
699: $result.=&Apache::edit::text_arg('Name:','name',$token);
700: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
701: ['unused','true','false'],
702: $token);
703: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
704: $safeeval,'-3');
705: if ($randomize ne 'no') {
706: $result.=&Apache::edit::select_arg('Location:','location',
707: ['random','top','bottom'],$token);
708: }
709: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
710: } elsif ($target eq 'modified') {
711: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
712: $safeeval,'value','name',
713: 'location');
714: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
715: }
716: return $result;
717: }
718:
719: sub end_foil {
720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
721: my $text='';
722: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
723: $text=&Apache::lonxml::endredirection;
724: }
725: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
726: || $target eq 'tex' || $target eq 'analyze') {
727: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
728: if ($value ne 'unused') {
729: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
730: if ($name eq "") {
731: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
732: $name=$Apache::lonxml::curdepth;
733: }
734: if (defined($Apache::response::foilnames{$name})) {
735: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
736: }
737: $Apache::response::foilnames{$name}++;
738: my $location =&Apache::lonxml::get_param('location',$parstack,
739: $safeeval);
740: if ( $Apache::radiobuttonresponse::conceptgroup
741: && !&Apache::response::showallfoils() ) {
742: push @{ $Apache::response::conceptgroup{'names'} }, $name;
743: $Apache::response::conceptgroup{"$name.value"} = $value;
744: $Apache::response::conceptgroup{"$name.text"} = $text;
745: $Apache::response::conceptgroup{"$name.location"} = $location;
746: } else {
747: push @{ $Apache::response::foilgroup{'names'} }, $name;
748: $Apache::response::foilgroup{"$name.value"} = $value;
749: $Apache::response::foilgroup{"$name.text"} = $text;
750: $Apache::response::foilgroup{"$name.location"} = $location;
751: }
752: }
753: }
754: return '';
755: }
756:
757: sub insert_foil {
758: return '
759: <foil name="" value="unused">
760: <startouttext />
761: <endouttext />
762: </foil>';
763: }
764: 1;
765: __END__
766:
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