1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.111 2007/02/22 01:25:31 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:
35: BEGIN {
36: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
37: }
38:
39: sub start_radiobuttonresponse {
40: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
41: my $result;
42: #when in a radiobutton response use these
43: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
44: push (@Apache::lonxml::namespace,'radiobuttonresponse');
45: my $id = &Apache::response::start_response($parstack,$safeeval);
46: %Apache::hint::radiobutton=();
47: undef(%Apache::response::foilnames);
48: if ($target eq 'meta') {
49: $result=&Apache::response::meta_package_write('radiobuttonresponse');
50: } elsif ($target eq 'edit' ) {
51: $result.=&Apache::edit::start_table($token).
52: '<tr><td>'.&Apache::lonxml::description($token).
53: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
54: "</td><td>Delete:".
55: &Apache::edit::deletelist($target,$token)
56: ."</td><td> ".&Apache::edit::end_row()
57: .&Apache::edit::start_spanning_row();
58: $result.=
59: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
60: $token,'4').
61: &Apache::edit::select_arg('Randomize Foil Order','randomize',
62: ['yes','no'],$token).
63: &Apache::edit::select_arg('Display Direction','direction',
64: ['vertical','horizontal'],$token).
65: &Apache::edit::end_row().
66: &Apache::edit::start_spanning_row()."\n";
67: } elsif ($target eq 'modified') {
68: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
69: $safeeval,'max',
70: 'randomize','direction');
71: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
72: } elsif ($target eq 'tex') {
73: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
74: undef,0);
75: if ($type eq '1') {
76: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
77: } elsif ($type eq 'A') {
78: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
79: } elsif ($type eq 'a') {
80: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
81: } elsif ($type eq 'i') {
82: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
83: } else {
84: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
85: }
86: $result .= '\begin{enumerate}';
87: } elsif ($target eq 'analyze') {
88: my $part_id="$Apache::inputtags::part.$id";
89: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
90: }
91: return $result;
92: }
93:
94: sub end_radiobuttonresponse {
95: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
96: my $result;
97: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
98: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
99: &Apache::response::end_response;
100: pop @Apache::lonxml::namespace;
101: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
102: undef(%Apache::response::foilnames);
103: return $result;
104: }
105:
106: %Apache::response::foilgroup=();
107: sub start_foilgroup {
108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
109: my $result;
110: %Apache::response::foilgroup=();
111: $Apache::radiobuttonresponse::conceptgroup=0;
112: &Apache::response::pushrandomnumber();
113: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
114: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
115: }
116: return $result;
117: }
118:
119: sub storesurvey {
120: if ( !&Apache::response::submitted() ) { return ''; }
121: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
122: &Apache::lonxml::debug("Here I am!:$response:");
123: if ( $response !~ /[0-9]+/) { return ''; }
124: my $part = $Apache::inputtags::part;
125: my $id = $Apache::inputtags::response['-1'];
126: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
127: my %responsehash;
128: $responsehash{$whichfoils[$response]}=$response;
129: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
130: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
131: $responsestr;
132: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
133: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
134: &Apache::response::handle_previous(\%previous,$ad);
135: &Apache::lonxml::debug("submitted a $response<br />\n");
136: return '';
137: }
138:
139: sub grade_response {
140: my ($max,$randomize)=@_;
141: #keep the random numbers the same must always call this
142: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
143: if ( !&Apache::response::submitted() ) { return; }
144: my $response;
145: if ($env{'form.submitted'} eq 'scantron') {
146: $response=&Apache::response::getresponse();
147: } else {
148: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
149: }
150: if ( $response !~ /[0-9]+/) { return; }
151: my $part=$Apache::inputtags::part;
152: my $id = $Apache::inputtags::response['-1'];
153: my %responsehash;
154: $responsehash{$whichfoils[$response]}=$response;
155: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
156: my %previous=&Apache::response::check_for_previous($responsestr,
157: $part,$id);
158: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
159: $responsestr;
160: &Apache::lonxml::debug("submitted a $response<br />\n");
161: my $ad;
162: if ($response == $answer) {
163: $ad='EXACT_ANS';
164: } else {
165: $ad='INCORRECT';
166: }
167: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
168: &Apache::response::handle_previous(\%previous,$ad);
169: }
170:
171: sub end_foilgroup {
172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
173:
174: my $result;
175: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
176: $target eq 'tex' || $target eq 'analyze') {
177: my $style = $Apache::lonhomework::type;
178: my $direction = &Apache::lonxml::get_param('direction',$parstack,
179: $safeeval,'-2');
180: if ( $style eq 'survey' && $target ne 'analyze') {
181: if ($target eq 'web' || $target eq 'tex') {
182: $result=&displayallfoils($direction, $target);
183: } elsif ( $target eq 'answer' ) {
184: $result=&displayallanswers();
185: } elsif ( $target eq 'grade' ) {
186: $result=&storesurvey();
187: }
188: } else {
189: my $name;
190: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
191: '-2');
192: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
193: $safeeval,'-2');
194: if ($target eq 'web' || $target eq 'tex') {
195: $result=&displayfoils($target,$max,$randomize,$direction);
196: } elsif ($target eq 'answer' ) {
197: $result=&displayanswers($max,$randomize);
198: } elsif ( $target eq 'grade') {
199: &grade_response($max,$randomize);
200: } elsif ( $target eq 'analyze') {
201: my @shown = &whichfoils($max,$randomize);
202: &Apache::response::analyze_store_foilgroup(\@shown,
203: ['text','value','location']);
204: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
205: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
206: ('true','false'));
207: }
208: }
209: $Apache::lonxml::post_evaluate=0;
210: }
211: &Apache::response::poprandomnumber();
212: &Apache::lonxml::increment_counter();
213: return $result;
214: }
215:
216: sub getfoilcounts {
217: my @names;
218: my $truecnt=0;
219: my $falsecnt=0;
220: my $name;
221: if ( $Apache::response::foilgroup{'names'} ) {
222: @names= @{ $Apache::response::foilgroup{'names'} };
223: }
224: foreach $name (@names) {
225: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
226: $truecnt++;
227: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
228: $falsecnt++;
229: }
230: }
231: return ($truecnt,$falsecnt);
232: }
233:
234: sub displayallfoils {
235: my ($direction, $target)=@_;
236: my $result;
237: &Apache::lonxml::debug("survey style display");
238: my @names;
239: if ( $Apache::response::foilgroup{'names'} ) {
240: @names= @{ $Apache::response::foilgroup{'names'} };
241: }
242: my $temp=0;
243: my $i =0;
244: my $id=$Apache::inputtags::response['-1'];
245: my $part=$Apache::inputtags::part;
246: my $lastresponse=
247: $Apache::lonhomework::history{"resource.$part.$id.submission"};
248: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
249: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
250: if (&Apache::response::show_answer() ) {
251: foreach my $name (@names) {
252: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
253: if (($direction eq 'horizontal') && ($target ne 'tex')) {
254: $result.="<td>";
255: } else {
256: if ($target eq 'tex') {
257: $result .= '\item \vskip -2mm ';
258: } else {
259: $result.="<br />";
260: }
261: }
262: if (defined($lastresponse{$name})) {
263: if ($target eq 'tex') {
264: $result .= '}';
265: } else {
266: $result.='<b>';
267: }
268: }
269: $result .= $Apache::response::foilgroup{$name.'.text'};
270: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
271: $result.='</b>';
272: }
273: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
274: }
275: }
276: } else {
277: foreach my $name (@names) {
278: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
279: if ($direction eq 'horizontal') {
280: $result.="<td>";
281: } else {
282: if ($target eq 'tex') {
283: $result .= '\item \vskip -2mm ';
284: } else {
285: $result.="<br />";
286: }
287: }
288: if ($target eq 'tex') {
289: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
290: $i++;
291: } else {
292: $result .= '<label>';
293: $result.="<input type=\"radio\" name=\"HWVAL_$Apache::inputtags::response['-1']\" value=\"$temp\" ";
294: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
295: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
296: '</label>';
297: }
298: $temp++;
299: if ($target ne 'tex') {
300: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
301: } else {
302: $result.='\vskip 0 mm ';
303: }
304: }
305: }
306: }
307: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
308: return $result;
309: }
310:
311: sub whichfoils {
312: my ($max,$randomize)=@_;
313:
314: my @truelist;
315: my @falselist;
316: my @whichfalse =();
317: my ($truecnt,$falsecnt) = &getfoilcounts();
318: my $count=0;
319: # we will add in 1 of the true statements
320: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
321: my $answer=int(&Math::Random::random_uniform() * ($count));
322: &Apache::lonxml::debug("Count is $count, $answer is $answer");
323: my @names;
324: if ( $Apache::response::foilgroup{'names'} ) {
325: @names= @{ $Apache::response::foilgroup{'names'} };
326: }
327: if (&Apache::response::showallfoils()) {
328: @whichfalse=@names;
329: } elsif ($randomize eq 'no') {
330: &Apache::lonxml::debug("No randomization");
331: my $havetrue=0;
332: foreach my $name (@names) {
333: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
334: if (!$havetrue ) {
335: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
336: }
337: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
338: push (@whichfalse,$name);
339: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
340: } else {
341: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
342: }
343: }
344: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
345: &Apache::lonxml::error("There are no true statements available.<br />");
346: }
347: } else {
348: my $current=0;
349: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
350: my (%top,%bottom);
351: #first find out where everyone wants to be
352: foreach my $name (@names) {
353: $current++;
354: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
355: push (@truelist,$name);
356: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
357: $top{$name}=$current;
358: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
359: $bottom{$name}=$current;
360: }
361: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
362: push (@falselist,$name);
363: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
364: $top{$name}=$current;
365: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
366: $bottom{$name}=$current;
367: }
368: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
369: } else {
370: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
371: }
372: }
373: #pick a true statement
374: my $notrue=0;
375: if (scalar(@truelist) == 0) { $notrue=1; }
376: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
377: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
378: my (@toplist, @bottomlist);
379: my $topcount=0;
380: my $bottomcount=0;
381: # assign everyone to either toplist/bottomlist or whichfalse
382: # which false is randomized, toplist bottomlist are in order
383: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
384: &Apache::lonxml::debug("Have $#whichfalse max is $max");
385: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
386: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
387: $afalse=splice(@falselist,$afalse,1);
388: &Apache::lonxml::debug("Picked $afalse");
389: &Apache::lonhomework::showhash(('names'=>\@names));
390: &Apache::lonhomework::showhash(%top);
391: if ($top{$afalse}) {
392: $toplist[$top{$afalse}]=$afalse;
393: $topcount++;
394: } elsif ($bottom{$afalse}) {
395: $bottomlist[$bottom{$afalse}]=$afalse;
396: $bottomcount++;
397: } else {
398: push (@whichfalse,$afalse);
399: }
400: }
401: &Apache::lonxml::debug("Answer wants $answer");
402: my $truename=$truelist[$whichtrue];
403: my $dosplice=1;
404: if ($notrue && $Apache::lonhomework::type ne 'survey') {
405: $dosplice=0;
406: &Apache::lonxml::error("There are no true statements available.<br />");
407: }
408: #insert the true statement, keeping track of where it wants to be
409: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
410: $toplist[$top{$truename}]=$truename;
411: $answer=-1;
412: foreach my $top (reverse(@toplist)) {
413: if ($top) { $answer++;}
414: if ($top eq $truename) { last; }
415: }
416: $dosplice=0;
417: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
418: $bottomlist[$bottom{$truename}]=$truename;
419: $answer=-1;
420: foreach my $bot (@bottomlist) {
421: if ($bot) { $answer++;}
422: if ($bot eq $truename) { last; }
423: }
424: $answer+=$topcount+$#whichfalse+1;
425: $dosplice=0;
426: } else {
427: if ($topcount>0 || $bottomcount>0) {
428: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
429: + $topcount;
430: }
431: }
432: &Apache::lonxml::debug("Answer now wants $answer");
433: #add the top items to the top, bottom items to the bottom
434: for (my $i=0;$i<=$#toplist;$i++) {
435: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
436: }
437: for (my $i=0;$i<=$#bottomlist;$i++) {
438: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
439: }
440: #if the true statement is randomized insert it into the list
441: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
442: }
443: &Apache::lonxml::debug("Answer is $answer");
444: return ($answer,@whichfalse);
445: }
446:
447: sub displayfoils {
448: my ($target,$max,$randomize,$direction)=@_;
449: my $result;
450:
451: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
452: my $part=$Apache::inputtags::part;
453: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
454: if ( ($target ne 'tex') &&
455: &Apache::response::show_answer() ) {
456: if ($direction eq 'horizontal') {
457: if ($target ne 'tex') {
458: $result.='<table><tr>';
459: }
460: }
461: foreach my $name (@whichfoils) {
462: if ($direction eq 'horizontal') {
463: if ($target ne 'tex') { $result.='<td>'; }
464: }
465: if ($target ne 'tex') {
466: $result.="<br />";
467: } else {
468: $result.='\item \vskip -2 mm ';
469: }
470: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
471: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
472: } else {
473: $result.='Incorrect:';
474: }
475: if ($target eq 'web') { $result.="<label>"; }
476: $result.=$Apache::response::foilgroup{$name.'.text'};
477: if ($target eq 'web') { $result.="</label>"; }
478: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
479: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
480: }
481: if ($direction eq 'horizontal') {
482: if ($target ne 'tex') { $result.='</td>'; }
483: }
484: }
485: if ($direction eq 'horizontal') {
486: if ($target ne 'tex') {
487: $result.='</tr></table>';
488: }
489: }
490: } else {
491: my @alphabet = ('A'..'Z');
492: my $i = 0;
493: my $temp=0;
494: my $id=$Apache::inputtags::response['-1'];
495: my $part=$Apache::inputtags::part;
496: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
497: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
498: if ($target ne 'tex' && $direction eq 'horizontal') {
499: $result.="<table><tr>";
500: }
501: foreach my $name (@whichfoils) {
502: if ($target ne 'tex') {
503: if ($direction eq 'horizontal') {
504: $result.="<td>";
505: } else {
506: $result.="<br />";
507: }
508: }
509: if ($target ne 'tex') {
510: $result.= '<label>';
511: $result.="<input type=\"radio\" name=\"HWVAL_$Apache::inputtags::response['-1']\" value=\"$temp\" ";
512: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
513: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
514: } else {
515: if ($Apache::lonhomework::type eq 'exam') {
516: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
517: $i++;
518: } else {
519: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
520: }
521: }
522: if ($target ne 'tex' && $direction eq 'horizontal') {
523: $result.="</td>";
524: }
525: $temp++;
526: }
527: if ($target ne 'tex' && $direction eq 'horizontal') {
528: $result.="</tr></table>";
529: }
530: }
531: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
532: return $result;
533: }
534:
535: sub displayallanswers {
536: my @names;
537: if ( $Apache::response::foilgroup{'names'} ) {
538: @names= @{ $Apache::response::foilgroup{'names'} };
539: }
540:
541: my $result=&Apache::response::answer_header('radiobuttonresponse');
542: foreach my $name (@names) {
543: $result.=&Apache::response::answer_part('radiobuttonresponse',
544: $Apache::response::foilgroup{$name.'.value'});
545: }
546: $result.=&Apache::response::answer_footer('radiobuttonresponse');
547: return $result;
548: }
549:
550: sub displayanswers {
551: my ($max,$randomize)=@_;
552: my ($answer,@whichopt) = &whichfoils($max,$randomize);
553: my $result=&Apache::response::answer_header('radiobuttonresponse');
554: if ($Apache::lonhomework::type eq 'exam') {
555: my $correct = ('A'..'Z')[$answer];
556: $result.=&Apache::response::answer_part('radiobuttonresponse',
557: $correct);
558: }
559: foreach my $name (@whichopt) {
560: $result.=&Apache::response::answer_part('radiobuttonresponse',
561: $Apache::response::foilgroup{$name.'.value'});
562: }
563: $result.=&Apache::response::answer_footer('radiobuttonresponse');
564: return $result;
565: }
566:
567: sub start_conceptgroup {
568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
569: $Apache::radiobuttonresponse::conceptgroup=1;
570: %Apache::response::conceptgroup=();
571: my $result;
572: if ($target eq 'edit') {
573: $result.=&Apache::edit::tag_start($target,$token);
574: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
575: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
576: } elsif ($target eq 'modified') {
577: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
578: $safeeval,'concept');
579: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
580: }
581: return $result;
582: }
583:
584: sub end_conceptgroup {
585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
586: $Apache::radiobuttonresponse::conceptgroup=0;
587: my $result;
588: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
589: $target eq 'tex' || $target eq 'analyze') {
590: &Apache::response::pick_foil_for_concept($target,
591: ['value','text','location'],
592: \%Apache::hint::radiobutton,
593: $parstack,$safeeval);
594: } elsif ($target eq 'edit') {
595: $result=&Apache::edit::end_table();
596: }
597: return $result;
598: }
599:
600: sub insert_conceptgroup {
601: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
602: return $result;
603: }
604:
605: sub start_foil {
606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
607: my $result='';
608: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
609: &Apache::lonxml::startredirection;
610: if ($target eq 'analyze') {
611: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
612: }
613: } elsif ($target eq 'edit') {
614: $result=&Apache::edit::tag_start($target,$token);
615: $result.=&Apache::edit::text_arg('Name:','name',$token);
616: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
617: ['unused','true','false'],
618: $token);
619: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
620: $safeeval,'-3');
621: if ($randomize ne 'no') {
622: $result.=&Apache::edit::select_arg('Location:','location',
623: ['random','top','bottom'],$token);
624: }
625: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
626: } elsif ($target eq 'modified') {
627: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
628: $safeeval,'value','name',
629: 'location');
630: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
631: }
632: return $result;
633: }
634:
635: sub end_foil {
636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
637: my $text='';
638: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
639: $text=&Apache::lonxml::endredirection;
640: }
641: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
642: || $target eq 'tex' || $target eq 'analyze') {
643: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
644: if ($value ne 'unused') {
645: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
646: if ($name eq "") {
647: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
648: $name=$Apache::lonxml::curdepth;
649: }
650: if (defined($Apache::response::foilnames{$name})) {
651: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
652: }
653: $Apache::response::foilnames{$name}++;
654: my $location =&Apache::lonxml::get_param('location',$parstack,
655: $safeeval);
656: if ( $Apache::radiobuttonresponse::conceptgroup
657: && !&Apache::response::showallfoils() ) {
658: push @{ $Apache::response::conceptgroup{'names'} }, $name;
659: $Apache::response::conceptgroup{"$name.value"} = $value;
660: $Apache::response::conceptgroup{"$name.text"} = $text;
661: $Apache::response::conceptgroup{"$name.location"} = $location;
662: } else {
663: push @{ $Apache::response::foilgroup{'names'} }, $name;
664: $Apache::response::foilgroup{"$name.value"} = $value;
665: $Apache::response::foilgroup{"$name.text"} = $text;
666: $Apache::response::foilgroup{"$name.location"} = $location;
667: }
668: }
669: }
670: return '';
671: }
672:
673: sub insert_foil {
674: return '
675: <foil name="" value="unused">
676: <startouttext />
677: <endouttext />
678: </foil>';
679: }
680: 1;
681: __END__
682:
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