1: # LearningOnline Network with CAPA
2: # option list style responses
3: #
4: # $Id: optionresponse.pm,v 1.137 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: package Apache::optionresponse;
29: use strict;
30: use Apache::response();
31: use Apache::lonlocal;
32: use Apache::lonnet;
33:
34: BEGIN {
35: &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
36: }
37:
38: sub start_optionresponse {
39: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
40: my $result='';
41: #when in a option response use these
42: &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
43: push (@Apache::lonxml::namespace,'optionresponse');
44: my $id = &Apache::response::start_response($parstack,$safeeval);
45: %Apache::hint::option=();
46: undef(%Apache::response::foilnames);
47: if ($target eq 'edit') {
48: $result.=&Apache::edit::start_table($token).
49: "<tr><td>Multiple Option Response Question ".
50: &Apache::loncommon::help_open_topic('Option_Response_Problems')."</td><td>Delete:".
51: &Apache::edit::deletelist($target,$token)
52: ."</td><td> ".
53: &Apache::edit::end_row().
54: &Apache::edit::start_spanning_row().
55: "\n";
56: $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
57: $token,'4').
58: &Apache::edit::select_arg('Randomize Foil Order','randomize',
59: ['yes','no'],$token).
60: &Apache::edit::select_arg(&mt('Display of options when printed'),'TeXlayout',
61: [['horizontal',&mt('Normal list')],
62: ['vertical',&mt('Listed in a vertical column')]],$token).
63: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
64: } elsif ($target eq 'modified') {
65: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
66: $safeeval,'max','randomize',
67: 'TeXlayout');
68: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
69: } elsif ($target eq 'meta') {
70: $result=&Apache::response::meta_package_write('optionresponse');
71: } elsif ($target eq 'analyze') {
72: my $part_id="$Apache::inputtags::part.$id";
73: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
74: }
75: return $result;
76: }
77:
78: sub end_optionresponse {
79: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
80: &Apache::response::end_response;
81: pop @Apache::lonxml::namespace;
82: &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
83: my $result;
84: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
85: undef(%Apache::response::foilnames);
86: return $result;
87: }
88:
89: %Apache::response::foilgroup=();
90: sub start_foilgroup {
91: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
92:
93: my $result='';
94: %Apache::response::foilgroup=();
95: $Apache::optionresponse::conceptgroup=0;
96: &Apache::response::pushrandomnumber();
97: if ($target eq 'edit') {
98: my $optionlist="<option></option>\n";
99: my $option;
100: my @opt;
101: eval '@opt ='. &Apache::lonxml::get_param('options',$parstack,$safeeval);
102: my $count=1;
103: foreach $option (@opt) {
104: $optionlist.="<option value=\"$count\">$option</option>\n";
105: $count++;
106: }
107: my $insertlist=&Apache::edit::insertlist($target,$token);
108: $result.=&Apache::edit::start_table($token);
109: $result.= (<<ENDTABLE);
110: <tr><td>Select Options</td>
111: <td>
112: Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
113: </td>
114: <td>Delete an Option:
115: <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
116: ENDTABLE
117: $result.= &Apache::edit::checked_arg('Print options:','texoptions',
118: [ ['nochoice','Don\'t show option list'] ]
119: ,$token);
120: $result.= &Apache::edit::end_row();
121: $result.= &Apache::edit::start_spanning_row();
122: $result.= $insertlist.'<br />';
123: }
124: if ($target eq 'modified') {
125: my @options;
126: my $optchanged=0;
127: eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
128: if ($env{"form.$Apache::lonxml::curdepth.deleteopt"}) {
129: my $delopt=$env{"form.$Apache::lonxml::curdepth.deleteopt"};
130: &Apache::lonxml::debug("Deleting :$delopt:");
131: splice(@options,$delopt-1,1);
132: $optchanged=1;
133: }
134: if ($env{"form.$Apache::lonxml::curdepth.options"}) {
135: my $newopt = $env{"form.$Apache::lonxml::curdepth.options"};
136: if ($options[0]) {
137: push(@options,$newopt);
138: } else {
139: $options[0]=$newopt;
140: }
141: $optchanged=1;
142: }
143: my $rebuildtag = &Apache::edit::get_new_args($token,$parstack,$safeeval,
144: ('texoptions'));
145: if ($optchanged || $rebuildtag ) {
146: $result = "<foilgroup options=\"(";
147: foreach my $option (@options) {
148: $option=~s/\'/\\\'/g;
149: &Apache::lonxml::debug("adding option :$option:");
150: $result .="'".$option."',";
151: }
152: chop $result;
153: $result.=')" ';
154: $result .= 'texoptions="'.$token->[2]{'texoptions'}.'" ';
155: $result .= '>';
156: } # else nothing changed so just use the default mechanism
157: }
158: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
159: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
160: \begin{enumerate} ';
161: }
162: return $result;
163: }
164:
165: sub end_foilgroup {
166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
167:
168: my $result;
169: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
170: $target eq 'tex' || $target eq 'analyze') {
171: my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
172: my $name;
173: my @opt;
174: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
175: &Apache::lonxml::debug("options:".join(':',@opt));
176:
177: my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
178: -2,0);
179: if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
180: &Apache::lonxml::debug("Options are $#opt");
181: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
182: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
183: $safeeval,'-2');
184: if ($target eq 'web' || $target eq 'tex') {
185: $result.=&displayfoils($target,$max,$randomize,$TeXlayout,@opt);
186: $Apache::lonxml::post_evaluate=0;
187: } elsif ( $target eq 'answer') {
188: $result.=&displayanswers($max,$randomize,@opt);
189:
190: } elsif ( $target eq 'analyze') {
191: my @shown = &whichfoils($max,$randomize);
192: &Apache::response::analyze_store_foilgroup(\@shown,
193: ['text','value','location']);
194: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
195: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
196: } elsif ( $target eq 'grade') {
197: if ( &Apache::response::submitted()) {
198: my @whichopt = &whichfoils($max,$randomize);
199: my $temp=1;my $name;
200: my %responsehash;
201: my %grade;
202: my $right=0;
203: my $wrong=0;
204: my $ignored=0;
205: foreach $name (@whichopt) {
206: my $response=&Apache::response::getresponse($temp);
207: if ($env{'form.submitted'} eq 'scantron' && $response=~/\S/) {
208: $response = $opt[$response];
209: }
210: if ( $response =~ /[^\s]/) {
211: $responsehash{$name}=$response;
212: my $value=$Apache::response::foilgroup{$name.'.value'};
213: &Apache::lonxml::debug("submitted a $response for $value<br />\n");
214: if ($value eq $response) {
215: $grade{$name}='1'; $right++;
216: } else {
217: $grade{$name}='0'; $wrong++;
218: }
219: } else {
220: $ignored++;
221: }
222: $temp++;
223: }
224: my $part=$Apache::inputtags::part;
225: my $id = $Apache::inputtags::response['-1'];
226: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
227: my $gradestr =&Apache::lonnet::hash2str(%grade);
228: my %previous=&Apache::response::check_for_previous($responsestr,
229: $part,$id);
230: &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
231: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
232: $responsestr;
233: $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
234:
235: if ($Apache::lonhomework::type eq 'survey') {
236: if ($ignored == 0) {
237: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
238: &Apache::response::handle_previous(\%previous,$ad);
239: } elsif ($wrong==0 && $right==0) {
240: } else {
241: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
242: &Apache::response::handle_previous(\%previous,$ad);
243: }
244: } elsif (!$Apache::lonhomework::scantronmode) {
245: my $ad;
246: if ($wrong==0 && $ignored==0) {
247: $ad='EXACT_ANS';
248: } elsif ($wrong==0 && $right==0) {
249: #nothing submitted
250: } else {
251: if ($ignored==0) {
252: $ad='INCORRECT';
253: } else {
254: $ad='MISSING_ANSWER';
255: }
256: }
257: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
258: &Apache::response::handle_previous(\%previous,$ad);
259: } else {
260: my $ad;
261: if ($wrong==0 && $right==0) {
262: #nothing submitted only assign a score if we
263: #need to override a previous grade
264: if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
265: $ad='ASSIGNED_SCORE';
266: }
267: } else {
268: $ad='ASSIGNED_SCORE';
269: }
270: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
271: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
272: $right/(scalar(@whichopt));
273: $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
274: scalar(@whichopt);
275: }
276: }
277: }
278: &Apache::lonxml::increment_counter(&getfoilcounts($max));
279: } elsif ($target eq 'edit') {
280: $result.=&Apache::edit::end_table();
281: }
282: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
283: $result .= '\end{enumerate}';
284: }
285: &Apache::response::poprandomnumber();
286: return $result;
287: }
288:
289: sub getfoilcounts {
290: my ($max)=@_;
291: # +1 since instructors will count from 1
292: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
293: if (&Apache::response::showallfoils()) { $max=$count; }
294: if ($count>$max) { $count=$max }
295: &Apache::lonxml::debug("Count is $count from $max");
296: return $count;
297: }
298:
299: sub whichfoils {
300: my ($max,$randomize)=@_;
301: return &Apache::response::whichorder($max,$randomize,
302: &Apache::response::showallfoils(),
303: \%Apache::response::foilgroup);
304: }
305:
306: sub displayanswers {
307: my ($max,$randomize,@opt)=@_;
308: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
309: my @names = @{ $Apache::response::foilgroup{'names'} };
310: my @whichopt = &whichfoils($max,$randomize);
311: my $result;
312: if ($Apache::lonhomework::type eq 'exam') {
313: my $i = 0;
314: my %opt = map { ($_,$i++) } @opt;
315:
316: $i = 0;
317: my @alphabet = ('A'..'Z');
318: foreach my $name (@whichopt) {
319: $result.=&Apache::response::answer_header('optionresponse',$i++);
320: $result.=&Apache::response::answer_part('optionresponse',
321: $alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
322: $result.=&Apache::response::answer_part('optionresponse',
323: $Apache::response::foilgroup{$name.'.value'});
324: $result.=&Apache::response::answer_footer('optionresponse');
325: }
326: } else {
327: $result=&Apache::response::answer_header('optionresponse');
328: foreach my $name (@whichopt) {
329: $result.=&Apache::response::answer_part('optionresponse',
330: $Apache::response::foilgroup{$name.'.value'});
331: }
332: $result.=&Apache::response::answer_footer('optionresponse');
333: }
334: return $result;
335: }
336:
337: sub check_for_invalid {
338: my ($names,$options) = @_;
339: my %bad_names;
340: foreach my $name (@{ $names }) {
341: my $value=$Apache::response::foilgroup{$name.'.value'};
342: my $found=0;
343: foreach my $option (@{ $options }) {
344: if ($value eq $option) { $found=1; }
345: }
346: if (!$found) { $bad_names{$name}=$value; }
347: }
348: if (%bad_names) {
349: my $error=&mt('The question can not be gotten correct, '.
350: 'the following foils in the <optionresponse> '.
351: 'have invalid correct options').' <br /><tt>'.
352: join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
353: "</tt>";
354: &Apache::lonxml::error($error);
355: }
356: }
357:
358: sub displayfoils {
359: my ($target,$max,$randomize,$TeXlayout,@opt)=@_;
360: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
361: my @names = @{ $Apache::response::foilgroup{'names'} };
362: my @truelist;
363: my @falselist;
364: my $result;
365: my $name;
366: my $displayoptionintex=1;
367: my @alphabet = ('A'..'Z');
368: my @whichopt = &whichfoils($max,$randomize);
369: &check_for_invalid(\@whichopt,\@opt);
370: my $part=$Apache::inputtags::part;
371: my $id=$Apache::inputtags::response[-1];
372: my $break;
373: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
374: if ( ($target ne 'tex') &&
375: &Apache::response::show_answer() ) {
376: my $temp=1;
377: foreach $name (@whichopt) {
378: my $text=$Apache::response::foilgroup{$name.'.text'};
379: my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
380: my $lastopt=$lastresponse{$name};
381: if ($text!~/^\s*$/) { $break='<br />'; }
382: $result.=$break;
383: if ($target eq 'web') {
384: my $value=$Apache::response::foilgroup{$name.'.value'};
385: if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
386: if ($text=~/^\s*$/) {
387: $text=$value.$text;
388: } else {
389: $text='<b>'.$value.':</b> '.$text;
390: }
391: } else {
392: $text='•'.$text;
393: }
394: $result.=$text."\n";
395: }
396: if ($Apache::lonhomework::type eq 'exam') {
397: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
398: }
399: $temp++;
400: }
401: } else {
402: my $temp=1;
403: my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
404: my $internal_counter=$Apache::lonxml::counter;
405: foreach $name (@whichopt) {
406: my $text=$Apache::response::foilgroup{$name.'.text'};
407: if ($text!~/^\s*$/) {
408: if ($target eq 'tex') {
409: $break='\vskip 0 mm ';
410: } elsif ($target eq 'web') {
411: $break='<br />';
412: }
413: }
414: my $lastopt=$lastresponse{$name};
415: my $optionlist="<option></option>\n";
416: foreach my $option (@opt) {
417: my $escopt=&HTML::Entities::encode($option,'\'"&<>');
418: if ($option eq $lastopt) {
419: $optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
420: } else {
421: $optionlist.="<option value='".$escopt."'>$option</option>\n";
422: }
423: }
424: if ($target ne 'tex') {
425: if ($Apache::lonhomework::type ne 'exam') {
426: $optionlist='<select name="HWVAL_'.
427: $Apache::inputtags::response['-1'].':'.$temp.'">'.
428: $optionlist."</select>\n";
429: } else {
430: $optionlist='<u>'.(' 'x10).'</u>';
431: }
432: if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
433: if ($Apache::lonhomework::type ne 'exam') {
434: $text='•'.$text;
435: }
436: } else {
437: if ($Apache::lonhomework::type ne 'exam') {
438: $text=$optionlist.$text;
439: }
440: }
441: $result.=$break.$text."\n";
442: if ($Apache::lonhomework::type eq 'exam') {
443: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
444: }
445: $temp++;
446: } else {
447: my $texoptionlist='';
448: if ($displayoptionintex &&
449: $Apache::lonhomework::type ne 'exam') {
450: $texoptionlist = &optionlist_correction($TeXlayout,@opt);
451: }
452: if ($text=~/<drawoptionlist\s*\/>/) {
453: $text=~s|<drawoptionlist\s*\/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |g;
454: }
455:
456: if ($text=~m/\\item /) {
457: if ($Apache::lonhomework::type eq 'exam') {
458: $text=~s/\\item/\\vskip 2 mm/;
459: }
460: $result.= $texoptionlist.$text;
461: } else {
462: if ($Apache::lonhomework::type eq 'exam') {
463: $result.= $texoptionlist.' '.$text;
464: } else {
465: if ($text=~/\S/) {$result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;} else {$result.= $texoptionlist;}
466: }
467: }
468: if ($Apache::lonhomework::type eq 'exam') {
469: $result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.
470: $internal_counter.'}.]'.&bubbles(\@alphabet,\@opt).
471: '\end{enumerate} \vskip -8 mm \strut ';
472: $internal_counter++;
473: }
474: $displayoptionintex=0;
475: }
476: }
477: }
478: if ($target ne 'tex') {
479: return $result.$break;
480: } else {
481: return $result;
482: }
483: }
484:
485:
486: sub optionlist_correction {
487: my ($TeXlayout,@options) = @_;
488: my $texoptionlist='\\item [] Choices: ';
489: if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
490: if (scalar(@options) > 0) {
491: foreach my $option (@options) {
492: $texoptionlist.='{\bf '.
493: &Apache::lonxml::latex_special_symbols($option).
494: '}';
495: if ($TeXlayout eq 'vertical') {
496: $texoptionlist.=' \vskip 0 mm ',
497: } else {
498: $texoptionlist.=', ';
499: }
500: }
501: $texoptionlist=~s/, $//;
502: if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
503: } else {
504: if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
505: }
506: return $texoptionlist;
507: }
508:
509:
510: sub webbubbles {
511: my ($ropt,$ralphabet,$temp,$lastopt)=@_;
512: my @opt=@$ropt;
513: my @alphabet=@$ralphabet;
514: my $result='';
515: my $number_of_bubbles = $#opt + 1;
516: $result.= '<table border="1"><tr>';
517: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
518: my $checked='';
519: if ($lastopt eq $opt[$ind]) {
520: $checked=' checked="on" ';
521: }
522: $result.='<td><input type="radio" name="HWVAL_'.
523: $Apache::inputtags::response['-1'].':'.$temp.
524: '" value="'.$opt[$ind].'" '.$checked.' />';
525: if ($alphabet[$ind]) {
526: $result.=$alphabet[$ind].': ';
527: }
528: $result.=$opt[$ind].'</td>';
529: }
530: $result.='</tr></table>';
531: return $result;
532: }
533:
534:
535: sub bubbles {
536: my ($ralphabet,$ropt,$response) = @_;
537: my @alphabet = @$ralphabet;
538: my @opt = @$ropt;
539: my ($result,$head,$line) =('','','');
540: my $number_of_bubbles = $#opt + 1;
541: my $current_length = 0;
542: my $textwidth;
543: if ($env{'form.textwidth'} ne '') {
544: $env{'form.textwidth'}=~/(\d+)/;
545: $textwidth=$1;
546: } else {
547: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
548: $textwidth=$1.'.'.$2;
549: }
550: for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
551: my $leftmargin;
552: $opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
553: if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
554: if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
555: $current_length += (length($opt[$ind])+length($alphabet[$ind])+4)*2;
556: if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
557: $line.='\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
558: $head.='lr';
559: } else {
560: $line=~s/\&\s*$//;
561: $result.='\vskip -2 mm\noindent\setlength{\tabcolsep}{2 mm}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
562: $line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;
563: $head ='lr';
564: $current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;
565: }
566:
567: }
568: return $result;
569: }
570:
571:
572: sub start_conceptgroup {
573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
574: $Apache::optionresponse::conceptgroup=1;
575: %Apache::response::conceptgroup=();
576: my $result;
577: if ($target eq 'edit') {
578: $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
579: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
580: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
581: }
582: if ($target eq 'modified') {
583: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
584: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
585: }
586: return $result;
587: }
588:
589: sub end_conceptgroup {
590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
591: $Apache::optionresponse::conceptgroup=0;
592: my $result='';
593: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
594: $target eq 'tex' || $target eq 'analyze') {
595: #if not there aren't any foils to display and thus no question
596: &Apache::response::pick_foil_for_concept($target,
597: ['value','text','location'],
598: \%Apache::hint::option,
599: $parstack,$safeeval);
600: } elsif ($target eq 'edit') {
601: $result=&Apache::edit::end_table();
602: }
603: return $result;
604: }
605:
606: sub insert_conceptgroup {
607: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
608: return $result;
609: }
610:
611: sub start_foil {
612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
613: my $result='';
614: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
615: &Apache::lonxml::startredirection;
616: if ($target eq 'analyze') {
617: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
618: }
619: } elsif ($target eq 'edit') {
620: $result=&Apache::edit::tag_start($target,$token,"Foil");
621: my $level='-2';
622: if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
623: my @opt;
624: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
625: $result.=&Apache::edit::text_arg('Name:','name',$token);
626: $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
627: ['unused',(@opt)],$token,'15');
628: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
629: $safeeval,'-3');
630: if ($randomize ne 'no') {
631: $result.=&Apache::edit::select_arg('Location:','location',
632: ['random','top','bottom'],$token);
633: }
634: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
635: } elsif ($target eq 'modified') {
636: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
637: 'value','name','location');
638: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
639: }
640: return $result;
641: }
642:
643: sub end_foil {
644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
645: my $text ='';
646: my $result = '';
647: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
648: $text=&Apache::lonxml::endredirection;
649: if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
650: if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;}
651: }
652: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
653: || $target eq 'tex' || $target eq 'analyze') {
654: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
655: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
656: $text='\vskip 5mm $\triangleright$ '.$text;
657: }
658: if ($value ne 'unused') {
659: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
660: &Apache::lonxml::debug("Got a name of :$name:");
661: if ($name eq "") {
662: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
663: $name=$Apache::lonxml::curdepth;
664: }
665: &Apache::lonxml::debug("Using a name of :$name:");
666: if (defined($Apache::response::foilnames{$name})) {
667: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
668: }
669: $Apache::response::foilnames{$name}++;
670: my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
671: if ( $Apache::optionresponse::conceptgroup
672: && !&Apache::response::showallfoils() ) {
673: push @{ $Apache::response::conceptgroup{'names'} }, $name;
674: $Apache::response::conceptgroup{"$name.value"} = $value;
675: $Apache::response::conceptgroup{"$name.text"} = $text;
676: $Apache::response::conceptgroup{"$name.location"} = $location;
677: } else {
678: push @{ $Apache::response::foilgroup{'names'} }, $name;
679: $Apache::response::foilgroup{"$name.value"} = $value;
680: $Apache::response::foilgroup{"$name.text"} = $text;
681: $Apache::response::foilgroup{"$name.location"} = $location;
682: }
683: }
684: }
685: if ($target eq 'edit') {
686: $result.= &Apache::edit::tag_end($target,$token,'');
687: }
688: return $result;
689: }
690:
691: sub start_drawoptionlist {
692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
693: if (($target ne 'meta') && ($target ne 'answer')) {
694: return $token->[4];
695: }
696: }
697:
698: sub end_drawoptionlist {
699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
700: if (($target ne 'meta') && ($target ne 'answer')) {
701: return $token->[2];
702: }
703: }
704:
705: sub insert_foil {
706: return '
707: <foil name="" value="unused">
708: <startouttext />
709: <endouttext />
710: </foil>';
711: }
712: 1;
713: __END__
714:
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