1: # LearningOnline Network with CAPA
2: # option list style responses
3: #
4: # $Id: optionresponse.pm,v 1.187 2012/10/12 12:45:46 raeburn 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:
30:
31:
32:
33: package Apache::optionresponse;
34: use strict;
35: use Apache::response();
36: use Apache::lonlocal;
37: use Apache::lonnet;
38:
39: BEGIN {
40: &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
41: }
42:
43: sub start_optionresponse {
44: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
45: my $result='';
46: #when in a option response use these
47: &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
48: push (@Apache::lonxml::namespace,'optionresponse');
49: my $id = &Apache::response::start_response($parstack,$safeeval);
50: %Apache::hint::option=();
51: undef(%Apache::response::foilnames);
52: if ($target eq 'edit') {
53: $result.=&Apache::edit::start_table($token)
54: .'<tr><td><span class="LC_nobreak">'.&mt('Multiple Option Response Question').'</span> '
55: .&Apache::loncommon::help_open_topic('Option_Response_Problems')."</td>"
56: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
57: .&Apache::edit::deletelist($target,$token)
58: .'</span></td>'
59: ."<td> "
60: .&Apache::edit::end_row()
61: .&Apache::edit::start_spanning_row()
62: ."\n";
63: $result.=&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(&mt('Display of options when printed'),'TeXlayout',
68: [['horizontal','Normal list'],
69: ['vertical','Listed in a vertical column']],$token).
70: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
71: } elsif ($target eq 'modified') {
72: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
73: $safeeval,'max','randomize',
74: 'TeXlayout');
75: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
76: } elsif ($target eq 'meta') {
77: $result=&Apache::response::meta_package_write('optionresponse');
78: } elsif ($target eq 'analyze') {
79: my $part_id="$Apache::inputtags::part.$id";
80: $Apache::lonhomework::analyze{"$part_id.type"} = 'optionresponse';
81: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
82: push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} }, 1);
83:
84: }
85: return $result;
86: }
87:
88: sub end_optionresponse {
89: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
90: &Apache::response::end_response;
91: pop @Apache::lonxml::namespace;
92: &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
93: my $result;
94: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
95: undef(%Apache::response::foilnames);
96: return $result;
97: }
98:
99: %Apache::response::foilgroup=();
100: sub start_foilgroup {
101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
102:
103: my $result='';
104: %Apache::response::foilgroup=();
105: $Apache::optionresponse::conceptgroup=0;
106: &Apache::response::pushrandomnumber(undef,$target);
107: if ($target eq 'edit') {
108: my $optionlist="<option></option>\n";
109: my $option;
110: my @opt;
111: eval '@opt ='. &Apache::lonxml::get_param('options',$parstack,$safeeval);
112: my $count=1;
113: foreach $option (@opt) {
114: $optionlist.="<option value=\"$count\">$option</option>\n";
115: $count++;
116: }
117: my $insertlist=&Apache::edit::insertlist($target,$token);
118: $result.=&Apache::edit::start_table($token);
119: $result.= (<<ENDTABLE);
120: <tr><td>Select Options</td>
121: <td>
122: Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
123: </td>
124: <td>Delete an Option:
125: <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
126: </td>
127: ENDTABLE
128: $result.= '<td>'.&Apache::edit::checked_arg('Print options:','texoptions',
129: [ ['nochoice','Don\'t show option list'] ]
130: ,$token).'</td>';
131: $result.= '<td><label>'.&mt('Two-option checkboxes for:').
132: '<select name="checkboxvalue_'.$Apache::lonxml::curdepth.'">';
133: foreach $option (('',@opt)) {
134: $result.='<option value="'.$option.'"';
135: if ($option eq &Apache::lonxml::get_param('checkboxvalue',$parstack,$safeeval)) {
136: $result.=' selected="selected"';
137: }
138: $result.='>'.$option.'</option>';
139: }
140: $result.='</select></label>';
141: $result.=&Apache::edit::checked_arg('Checkbox options:','checkboxoptions',
142: [ ['nochoice','Don\'t show option list'] ]
143: ,$token).'</td>';
144: $result.= &Apache::edit::end_row();
145: $result.= &Apache::edit::start_spanning_row();
146: $result.= $insertlist.'<br />';
147: }
148: if ($target eq 'modified') {
149: my @options;
150: my $optchanged=0;
151: eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
152: if ($env{"form.$Apache::lonxml::curdepth.deleteopt"}) {
153: my $delopt=$env{"form.$Apache::lonxml::curdepth.deleteopt"};
154: &Apache::lonxml::debug("Deleting :$delopt:");
155: splice(@options,$delopt-1,1);
156: $optchanged=1;
157: }
158: if ($env{"form.$Apache::lonxml::curdepth.options"} ne '') {
159: my $newopt = $env{"form.$Apache::lonxml::curdepth.options"};
160: push(@options,$newopt);
161: $optchanged=1;
162: }
163: my $rebuildtag = &Apache::edit::get_new_args($token,$parstack,$safeeval,
164: 'texoptions','checkboxvalue','checkboxoptions');
165: if ($optchanged || $rebuildtag ) {
166: $result = "<foilgroup options=\"(";
167: foreach my $option (@options) {
168: $option=~s/\'/\\\'/g;
169: &Apache::lonxml::debug("adding option :$option:");
170: $result .="'".$option."',";
171: }
172: chop $result;
173: $result.=')" ';
174: $result .= 'texoptions="'.$token->[2]{'texoptions'}.'" ';
175: $result .= 'checkboxoptions="'.$token->[2]{'checkboxoptions'}.'" ';
176: $result .= 'checkboxvalue="'.$token->[2]{'checkboxvalue'}.'"';
177: $result .= '>';
178: } # else nothing changed so just use the default mechanism
179: }
180: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
181: if($env{'form.pdfFormFields'} ne 'yes') {
182: $result .= ' \begin{itemize} ';
183: } else {
184: $result .= "\\\\";
185: }
186: }
187: return $result;
188: }
189:
190: sub end_foilgroup {
191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
192:
193: my $result;
194: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
195: $target eq 'tex' || $target eq 'analyze') {
196: my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
197: my $name;
198: my @opt;
199: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
200: &Apache::lonxml::debug("options:".join(':',@opt));
201:
202: my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
203: -2,0);
204: my $checkboxvalue=&Apache::lonxml::get_param('checkboxvalue',$parstack,$safeeval);
205: my $checkboxchoices=(&Apache::lonxml::get_param('checkboxoptions',$parstack,$safeeval) ne 'nochoice');
206: my $noprompt =&Apache::lonxml::get_param('noprompt', $parstack, $safeeval);
207:
208: if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
209: &Apache::lonxml::debug("Options are $#opt");
210: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
211: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
212: $safeeval,'-2');
213: if ($target eq 'web' || $target eq 'tex') {
214: $result.=&displayfoils($target,$max,$randomize,$TeXlayout,$checkboxvalue,$checkboxchoices,$tex_option_switch, $noprompt, @opt);
215: $Apache::lonxml::post_evaluate=0;
216: } elsif ( $target eq 'answer') {
217: $result.=&displayanswers($max,$randomize,@opt);
218:
219: } elsif ( $target eq 'analyze') {
220: my @shown = &whichfoils($max,$randomize);
221: &Apache::response::analyze_store_foilgroup(\@shown,
222: ['text','value','location']);
223: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
224: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
225: } elsif ( $target eq 'grade') {
226:
227: if ( &Apache::response::submitted()) {
228:
229: my @whichopt = &whichfoils($max,$randomize);
230: my $temp=1;my $name;
231: my %responsehash;
232: my %grade;
233: my $right=0;
234: my $wrong=0;
235: my $ignored=0;
236: my ($numrows,$bubbles_per_row);
237: if ($Apache::lonhomework::scantronmode) {
238: my $numitems = scalar(@opt);
239: ($numrows,$bubbles_per_row) =
240: &Apache::optionresponse::getnumrows($numitems);
241: }
242: if ($numrows < 1) {
243: $numrows = 1;
244: }
245: foreach $name (@whichopt) {
246: my $response;
247: if ($env{'form.submitted'} eq 'scantron') {
248: if ($numrows > 1) {
249: my $num = $temp;
250: my $totalnum;
251: for (my $i=0; $i<$numrows; $i++) {
252: my $item = &Apache::response::getresponse($num);
253: if ($item =~ /^\d+$/) {
254: $totalnum = $i*$bubbles_per_row + $item;
255: }
256: $num ++;
257: }
258: if ($totalnum =~ /^\d+$/) {
259: $response = $opt[$totalnum];
260: }
261: $temp += $numrows;
262: } else {
263: $response=&Apache::response::getresponse($temp);
264: if ($response=~/\S/) {
265: $response = $opt[$response];
266: }
267: $temp ++;
268: }
269: } else {
270: $response=&Apache::response::getresponse($temp);
271: $temp ++;
272: }
273: if ( $response =~ /[^\s]/) {
274: $responsehash{$name}=$response;
275: my $value=$Apache::response::foilgroup{$name.'.value'};
276: &Apache::lonxml::debug("submitted a $response for $value<br />\n");
277: if ($value eq $response) {
278: $grade{$name}='1'; $right++;
279: } else {
280: $grade{$name}='0'; $wrong++;
281: }
282: } else {
283: $ignored++;
284: }
285: }
286: my $part=$Apache::inputtags::part;
287: my $nonlenient=&grading_is_nonlenient($part);
288: my $id = $Apache::inputtags::response['-1'];
289: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
290: my $gradestr =&Apache::lonnet::hash2str(%grade);
291: my %previous=&Apache::response::check_for_previous($responsestr,
292: $part,$id);
293: &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
294: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
295: $responsestr;
296: $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
297: if ($Apache::lonhomework::type eq 'randomizetry') {
298: $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichopt);
299: }
300: if (($Apache::lonhomework::type eq 'survey') ||
301: ($Apache::lonhomework::type eq 'surveycred') ||
302: ($Apache::lonhomework::type eq 'anonsurvey') ||
303: ($Apache::lonhomework::type eq 'anonsurveycred')) {
304: if ($ignored == 0) {
305: my $ad;
306: if ($Apache::lonhomework::type eq 'anonsurveycred') {
307: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
308: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
309: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
310: } elsif ($Apache::lonhomework::type eq 'surveycred') {
311: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
312: } else {
313: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
314: }
315: &Apache::response::handle_previous(\%previous,$ad);
316: } elsif ($wrong==0 && $right==0) {
317: } else {
318: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
319: &Apache::response::handle_previous(\%previous,$ad);
320: }
321: } elsif ($nonlenient) {
322: #
323: # Non-lenient mode. All right or all wrong
324: #
325: my $ad;
326: if ($wrong==0 && $ignored==0) {
327: $ad='EXACT_ANS';
328: } elsif ($wrong==0 && $right==0) {
329: #nothing submitted
330: } else {
331: if ($ignored==0) {
332: $ad='INCORRECT';
333: } else {
334: $ad='MISSING_ANSWER';
335: }
336: }
337: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
338: &Apache::response::handle_previous(\%previous,$ad);
339: } else {
340: #
341: # This is lenient mode
342: #
343: my $ad;
344: if ($wrong==0 && $right==0) {
345: #nothing submitted only assign a score if we
346: #need to override a previous grade
347: if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
348: $ad='ASSIGNED_SCORE';
349: }
350: } else {
351: $ad='ASSIGNED_SCORE';
352: }
353: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
354: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
355: $right/(scalar(@whichopt));
356: $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
357: scalar(@whichopt);
358: }
359: }
360: }
361: my $part_id = $Apache::inputtags::part;
362: my $response_id = $Apache::inputtags::response[-1];
363: my ($numrows,$bubbles_per_row);
364: if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
365: ($numrows,$bubbles_per_row) =
366: &Apache::optionresponse::getnumrows(scalar(@opt));
367: }
368: if ($numrows < 1) {
369: $numrows = 1;
370: }
371: my $increment = &getfoilcounts($max) * $numrows;
372: &Apache::lonxml::increment_counter($increment,"$part_id.$response_id");
373: if ($target eq 'analyze') {
374: &Apache::lonhomework::set_bubble_lines();
375: }
376:
377: } elsif ($target eq 'edit') {
378: $result.=&Apache::edit::end_table();
379: }
380: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
381: if($env{'form.pdfFormFields'} ne 'yes') {
382: $result .= '\end{itemize}';
383: } else {
384: $result .= "\\\\";
385: }
386: }
387: &Apache::response::poprandomnumber();
388: return $result;
389: }
390:
391: sub grading_is_nonlenient {
392: my ($part) = @_;
393: # Web mode: we are non-lenient unless told otherwise
394: my $defaultparm = 'off';
395: my $nonlenient = 0;
396: # Grading a bubblesheet exam: we are grading lenient unless told otherwise
397: if ($Apache::lonhomework::scantronmode) {
398: $defaultparm = 'on';
399: $nonlenient = 1;
400: }
401: my $lenientparm =
402: &Apache::response::get_response_param($part,'lenient',$defaultparm);
403: if ($lenientparm=~/^0|off|no$/i) {
404: $nonlenient = 1;
405: } elsif ($lenientparm=~/^1|on|yes$/i) {
406: $nonlenient = 0;
407: }
408: return $nonlenient;
409: }
410:
411: sub getfoilcounts {
412: my ($max)=@_;
413: # +1 since instructors will count from 1
414: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
415: if (&Apache::response::showallfoils()) { $max=$count; }
416: if ($count>$max) { $count=$max }
417: &Apache::lonxml::debug("Count is $count from $max");
418: return $count;
419: }
420:
421: sub whichfoils {
422: my ($max,$randomize)=@_;
423: return &Apache::response::whichorder($max,$randomize,
424: &Apache::response::showallfoils(),
425: \%Apache::response::foilgroup);
426: }
427:
428: sub displayanswers {
429: my ($max,$randomize,@opt)=@_;
430: my @names;
431: if (ref($Apache::response::foilgroup{'names'}) eq 'ARRAY') {
432: @names = @{ $Apache::response::foilgroup{'names'} };
433: }
434: return if (!@names);
435: my @whichopt = &whichfoils($max,$randomize);
436: my $result;
437: if ($Apache::lonhomework::type eq 'exam') {
438: my $i = 0;
439: my %opt = map { ($_,$i++) } @opt;
440:
441: $i = 0;
442: my @alphabet = ('A'..'Z');
443: foreach my $name (@whichopt) {
444: $result.=&Apache::response::answer_header('optionresponse',$i++);
445: $result.=&Apache::response::answer_part('optionresponse',
446: $alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
447: $result.=&Apache::response::answer_part('optionresponse',
448: $Apache::response::foilgroup{$name.'.value'});
449: $result.=&Apache::response::answer_footer('optionresponse');
450: }
451: } else {
452: $result=&Apache::response::answer_header('optionresponse');
453: foreach my $name (@whichopt) {
454: $result.=&Apache::response::answer_part('optionresponse',
455: $Apache::response::foilgroup{$name.'.value'});
456: }
457: $result.=&Apache::response::answer_footer('optionresponse');
458: }
459: return $result;
460: }
461:
462: sub check_box_opt {
463: my ($target,$checkboxvalue,@opt)=@_;
464: # Check if we are in checkbox mode: checkboxvalue specified, on web, only two options.
465: # If so, return "checked" value
466: if ($#opt!=1) { return ''; }
467: if ($target ne 'web') { return ''; }
468: return $checkboxvalue;
469: }
470:
471: sub check_for_invalid {
472: my ($names,$options) = @_;
473: my %bad_names;
474: foreach my $name (@{ $names }) {
475: my $value=$Apache::response::foilgroup{$name.'.value'};
476: my $found=0;
477: foreach my $option (@{ $options }) {
478: if ($value eq $option) { $found=1; }
479: }
480: if (!$found) { $bad_names{$name}=$value; }
481: }
482: if (%bad_names) {
483: my $error=&mt('The question can not be gotten correct, '.
484: 'the following foils in the <optionresponse> '.
485: 'have invalid correct options').' <br /><tt>'.
486: join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
487: "</tt>";
488: &Apache::lonxml::error($error);
489: }
490: }
491:
492: sub displayfoils {
493: my ($target,$max,$randomize,$TeXlayout,$checkboxvalue,$checkboxchoices,
494: $tex_option_switch, $no_tfprompt, @opt)=@_;
495: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
496: my @names = @{ $Apache::response::foilgroup{'names'} };
497: my @truelist;
498: my @falselist;
499: my $result;
500: my $name;
501: my $displayoptionintex=1;
502: my @alphabet = ('A'..'Z');
503: my @whichopt = &whichfoils($max,$randomize);
504: unless (($target eq 'tex') && ($tex_option_switch eq 'nochoice')) {
505: &check_for_invalid(\@whichopt,\@opt);
506: }
507: my $part=$Apache::inputtags::part;
508: my $id=$Apache::inputtags::response[-1];
509: my $break;
510: if ( ($target ne 'tex') &&
511: &Apache::response::show_answer() ) {
512: my $temp=1;
513: foreach $name (@whichopt) {
514: my $text=$Apache::response::foilgroup{$name.'.text'};
515: my $lastresp;
516: unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'}))) {
517: $lastresp = $Apache::lonhomework::history{"resource.$part.$id.submission"};
518: }
519: my %lastresponse=&Apache::lonnet::str2hash($lastresp);
520: my $lastopt=$lastresponse{$name};
521: if ($text!~/^\s*$/) { $break='<br />'; }
522: $result.=$break;
523: if ($target eq 'web') {
524: my $value=$Apache::response::foilgroup{$name.'.value'};
525: if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
526: if ($text=~/^\s*$/) {
527: $text=$value.$text;
528: } else {
529: $text='<b>'.$value.':</b> '.$text;
530: }
531: } else {
532: if (@whichopt > 1) {
533: $text='•'.$text;
534: }
535: }
536: $result.=$text."\n";
537: }
538: if ($Apache::lonhomework::type eq 'exam') {
539: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
540: }
541: $temp++;
542: }
543: } else {
544: my $temp=1;
545: my %lastresponse;
546: my $newvariation;
547: if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
548: ($Apache::lonhomework::type eq 'randomizetry')) &&
549: ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
550: if ($env{'form.'.$part.'.rndseed'} ne
551: $Apache::lonhomework::history{"resource.$part.rndseed"}) {
552: $newvariation = 1;
553: }
554: }
555: unless ($newvariation) {
556: %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
557: }
558: my $internal_counter=$Apache::lonxml::counter;
559: my $checkboxopt=&check_box_opt($target,$checkboxvalue,@opt);
560: if ($checkboxopt && (!$no_tfprompt)) {
561: $result.='<br />'.
562: ($checkboxchoices?&mt('Choices: ').'<b>'.$opt[0].','.$opt[1].'</b>. ':'').
563: &mt('Select all that are <b>[_1]</b>.',$checkboxopt);
564: }
565: foreach $name (@whichopt) {
566: my $text=$Apache::response::foilgroup{$name.'.text'};
567: if ($text!~/^\s*$/) {
568: if ($target eq 'tex') {
569: $break='\vskip 0 mm ';
570: } elsif ($target eq 'web') {
571: $break='<br />';
572: }
573: }
574: my $lastopt=$lastresponse{$name};
575: my $optionlist="<option></option>\n";
576:
577: if($target eq 'tex' and $env{'form.pdfFormFields'} eq 'yes'
578: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
579: my $fieldname = $env{'request.symb'}.'&part_'.$Apache::inputtags::part.'&optionresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'].':'.$temp;
580: $optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
581: }
582:
583: foreach my $option (@opt) {
584: my $escopt=&HTML::Entities::encode($option,'\'"&<>');
585: if ($option eq $lastopt) {
586: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
587: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
588: && $Apache::lonhomework::type ne 'exam') {
589: $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
590: } else {
591: $optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
592: }
593: } else {
594: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
595: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
596: && $Apache::lonhomework::type ne 'exam') {
597: $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
598: } else {
599: $optionlist.="<option value='".$escopt."'>$option</option>\n";
600: }
601: }
602: }
603: if ($target ne 'tex') {
604: if ($Apache::lonhomework::type ne 'exam') {
605: # we are on the web, this is not an exam, and the problem can be answered
606: if ($checkboxopt) {
607: # generate checkboxes
608: my $fieldname=$Apache::inputtags::response['-1'].':'.$temp;
609: my $altopt=$opt[0];
610: if ($opt[0] eq $checkboxopt) {
611: $altopt=$opt[1];
612: }
613: my $defopt=$lastopt;
614: unless ($defopt) { $defopt=$altopt; }
615: my $escdefopt=&HTML::Entities::encode($defopt,'\'"&<>');
616: my $esccheckboxopt=&HTML::Entities::encode($checkboxopt,'\'"&<>');
617: my $escaltopt=&HTML::Entities::encode($altopt,'\'"&<>');
618: # checkboxopt is how the box is labelled
619: # altopt is the alternative option
620: # lastopt is what the user submitted before
621: # defopt is what the field is going to start out with: either previous choice or altopt
622: # fieldname is this input field's name after HWVAL_
623: $optionlist='<input type="hidden" name="HWVAL_'.$fieldname.'" value="'.$escdefopt.'" />'.
624: '<input type="checkbox" name="HWCHK_'.$fieldname.'" onclick="javascript:if (this.form.elements[\'HWCHK_'.
625: $fieldname.'\'].checked) { this.form.elements[\'HWVAL_'.$fieldname.'\'].value=\''.$esccheckboxopt.'\'; } else { this.form.elements[\'HWVAL_'.$fieldname.'\'].value=\''.$escaltopt.'\'; };setSubmittedPart(\''.$part.'\');"'.($defopt eq $checkboxopt?' checked="checked"':'')." />\n";
626: } else {
627: # classic selection list
628: $optionlist='<select onchange="javascript:setSubmittedPart(\''.
629: $part.'\');" name="HWVAL_'.
630: $Apache::inputtags::response['-1'].':'.$temp.'">'.
631: $optionlist."</select>\n";
632: }
633: } else {
634: $optionlist='<u>'.(' 'x10).'</u>';
635: }
636: if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
637: if ($Apache::lonhomework::type ne 'exam') {
638: if (@whichopt > 1) {
639: $text='•'.$text;
640: }
641: }
642: } else {
643: if ($Apache::lonhomework::type ne 'exam') {
644: $text=$optionlist.$text;
645: }
646: }
647: $result.=$break.$text."\n";
648: if ($Apache::lonhomework::type eq 'exam') {
649: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
650: }
651: $temp++;
652: } else {
653: my $texoptionlist='';
654: if ($displayoptionintex &&
655: $Apache::lonhomework::type ne 'exam') {
656: $texoptionlist = &optionlist_correction($TeXlayout,@opt);
657: }
658: if ($text=~/<drawoptionlist\s*\/>/) {
659: $text=~s|<drawoptionlist\s*\/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |g;
660: }
661:
662: if ($text=~m/\\item /) {
663: if ($Apache::lonhomework::type eq 'exam') {
664: $text=~s/\\item/\\vskip 2 mm/;
665: } elsif ($env{'form.pdfFormFields'} ne 'yes') {
666: $result.= $texoptionlist.$text;
667: }
668: } else {
669: if ($Apache::lonhomework::type eq 'exam') {
670: $result.= $texoptionlist.' '.$text;
671: } elsif ($env{'form.pdfFormFields'} ne 'yes') {
672: if ($text=~/\S/) {
673: $result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;
674: } else {
675: $result.= $texoptionlist;
676: }
677: }
678: }
679: if ($Apache::lonhomework::type eq 'exam') {
680: $result.='\vskip -1 mm\noindent';
681: my ($numrows,$bubbles_per_row) = &getnumrows(scalar(@opt));
682: if ($numrows == 1) {
683: $result .= '\textbf{'.$internal_counter.'}. \vskip -3mm';
684: } else {
685: my $linetext;
686: for (my $i=0; $i<$numrows; $i++) {
687: $linetext .= $internal_counter+$i.', ';
688: }
689: $linetext =~ s/,\s$//;
690: $result .= '\small {\textbf{'.$linetext.'}} '.
691: '\hskip 2 mm {\footnotesize '.
692: &mt('(Bubble once in [_1] lines)',$numrows).
693: '} \vskip 1 mm';
694: }
695: $result.= &bubbles(\@alphabet,\@opt,undef,undef,$numrows,
696: $bubbles_per_row,$internal_counter).
697: ' \strut ';
698: $internal_counter += $numrows;
699: }
700: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
701: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
702: && $Apache::lonhomework::type ne 'exam') {
703: $text =~ s/\\item//m;
704: $result .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut \\\\';
705: $temp++;
706: }
707: $displayoptionintex=0;
708: }
709: }
710: }
711:
712: if ($target eq 'web') {
713: my $data = [\@whichopt,'submissiongrading'];
714: my $questiontype;
715: if ($Apache::lonhomework::type eq 'randomizetry') {
716: $questiontype = $Apache::lonhomework::type,
717: }
718: &Apache::response::setup_prior_tries_hash(\&Apache::rankresponse::format_prior_answer,$data,$questiontype);
719: }
720:
721: if ($target ne 'tex') {
722: return $result.$break;
723: } else {
724: return $result;
725: }
726: }
727:
728:
729: sub optionlist_correction {
730: my ($TeXlayout,@options) = @_;
731: my $texoptionlist='\\item [] '.&mt('Choices:').' ';
732: if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
733: if (scalar(@options) > 0) {
734: foreach my $option (@options) {
735: $texoptionlist.='{\bf '.
736: &Apache::lonxml::latex_special_symbols($option).
737: '}';
738: if ($TeXlayout eq 'vertical') {
739: $texoptionlist.=' \vskip 0 mm ',
740: } else {
741: $texoptionlist.=', ';
742: }
743: }
744: $texoptionlist=~s/, $//;
745: if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
746: } else {
747: if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
748: }
749: return $texoptionlist;
750: }
751:
752:
753: sub webbubbles {
754: my ($ropt,$ralphabet,$temp,$lastopt)=@_;
755: my @opt=@$ropt;
756: my @alphabet=@$ralphabet;
757: my $result='';
758: my $number_of_bubbles = $#opt + 1;
759: $result.= '<table border="1"><tr>';
760: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
761: my $checked='';
762: if ($lastopt eq $opt[$ind]) {
763: $checked=' checked="on" ';
764: }
765: $result.='<td><input type="radio" name="HWVAL_'.
766: $Apache::inputtags::response['-1'].':'.$temp.
767: '" value="'.$opt[$ind].'" '.$checked.' />';
768: if ($alphabet[$ind]) {
769: $result.=$alphabet[$ind].': ';
770: }
771: $result.=$opt[$ind].'</td>';
772: }
773: $result.='</tr></table>';
774: return $result;
775: }
776:
777:
778: sub bubbles {
779: my ($ralphabet,$ropt,$response,$max_width,$numrows,$bubbles_per_row,
780: $internal_counter) = @_;
781: my @alphabet = @$ralphabet;
782: my @opt = @$ropt;
783: my ($result,$head,$line) =('','','');
784: my $number_of_bubbles = $#opt + 1;
785: my $current_length = 0;
786: my $textwidth;
787: if (defined($max_width)) {
788: $textwidth=$max_width;
789: &Apache::lonxml::debug("Max width passed in: $max_width");
790: } elsif ($env{'form.textwidth'} ne '') {
791: $env{'form.textwidth'}=~/(\d+)/;
792: $textwidth=$1;
793: &Apache::lonxml::debug("Max width from form: $textwidth");
794: } else {
795: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
796: $textwidth=$1.'.'.$2;
797: &Apache::lonxml::debug("Max width defaults? $textwidth");
798: }
799: &Apache::lonxml::debug("Final maxwidth: $textwidth");
800: for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
801: my $item;
802: if ($numrows > 1) {
803: my $num = $internal_counter+int($ind/$bubbles_per_row);
804: my $idx = int($ind % $bubbles_per_row);
805: $item = $num.$alphabet[$idx];
806: } else {
807: $item = $alphabet[$ind];
808: }
809: my $leftmargin;
810: $opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
811: if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
812: if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
813:
814: $current_length += (length($opt[$ind])+length($item)+5)*2;
815:
816: if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
817:
818: $line.='\hskip 4 mm {\small \textbf{'.$item.'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
819: $head.='lr';
820: } else {
821: $line=~s/\&\s*$//;
822: $result.='\vskip -1 mm\noindent\setlength{\tabcolsep}{2 mm}\renewcommand{\arraystretch}{1.25}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
823: $line = '\hskip 4 mm {\small \textbf{'.$item.'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
824: $head ='lr';
825: $current_length = (length($opt[$ind])+length($item))*2;
826: }
827:
828: }
829: return $result;
830: }
831:
832: sub start_conceptgroup {
833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
834: $Apache::optionresponse::conceptgroup=1;
835: %Apache::response::conceptgroup=();
836: my $result;
837: if ($target eq 'edit') {
838: $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
839: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
840: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
841: }
842: if ($target eq 'modified') {
843: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
844: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
845: }
846: return $result;
847: }
848:
849: sub end_conceptgroup {
850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
851: $Apache::optionresponse::conceptgroup=0;
852: my $result='';
853: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
854: $target eq 'tex' || $target eq 'analyze') {
855: #if not there aren't any foils to display and thus no question
856: &Apache::response::pick_foil_for_concept($target,
857: ['value','text','location'],
858: \%Apache::hint::option,
859: $parstack,$safeeval);
860: } elsif ($target eq 'edit') {
861: $result=&Apache::edit::end_table();
862: }
863: return $result;
864: }
865:
866: sub insert_conceptgroup {
867: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
868: return $result;
869: }
870:
871: sub start_foil {
872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
873: my $result='';
874: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
875: &Apache::lonxml::startredirection;
876: if ($target eq 'analyze') {
877: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
878: }
879: } elsif ($target eq 'edit') {
880: $result=&Apache::edit::tag_start($target,$token,"Foil");
881: my $level='-2';
882: if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
883: my @opt;
884: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
885: $result.=&Apache::edit::text_arg('Name:','name',$token);
886: $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
887: ['unused',(@opt)],$token,'15');
888: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
889: $safeeval,'-3');
890: if ($randomize ne 'no') {
891: $result.=&Apache::edit::select_arg('Location:','location',
892: ['random','top','bottom'],$token);
893: }
894: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
895: } elsif ($target eq 'modified') {
896: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
897: 'value','name','location');
898: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
899: }
900: return $result;
901: }
902:
903: sub end_foil {
904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
905: my $text ='';
906: my $result = '';
907: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
908: $text=&Apache::lonxml::endredirection;
909: if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
910: if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;}
911: }
912: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
913: || $target eq 'tex' || $target eq 'analyze') {
914: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
915: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
916: $text='\vskip 5mm $\triangleright$ '.$text;
917: }
918: if ($value ne 'unused') {
919: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
920: &Apache::lonxml::debug("Got a name of :$name:");
921: if ($name eq "") {
922: &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
923: $name=$Apache::lonxml::curdepth;
924: }
925: &Apache::lonxml::debug("Using a name of :$name:");
926: if (defined($Apache::response::foilnames{$name})) {
927: &Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
928: }
929: $Apache::response::foilnames{$name}++;
930: my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
931: if ( $Apache::optionresponse::conceptgroup
932: && !&Apache::response::showallfoils() ) {
933: push @{ $Apache::response::conceptgroup{'names'} }, $name;
934: $Apache::response::conceptgroup{"$name.value"} = $value;
935: $Apache::response::conceptgroup{"$name.text"} = $text;
936: $Apache::response::conceptgroup{"$name.location"} = $location;
937: } else {
938: push @{ $Apache::response::foilgroup{'names'} }, $name;
939: $Apache::response::foilgroup{"$name.value"} = $value;
940: $Apache::response::foilgroup{"$name.text"} = $text;
941: $Apache::response::foilgroup{"$name.location"} = $location;
942: }
943: }
944: }
945: if ($target eq 'edit') {
946: $result.= &Apache::edit::tag_end($target,$token,'');
947: }
948: return $result;
949: }
950:
951: sub start_drawoptionlist {
952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
953: if ($target !~ /^(?:meta|answer|modified|edit)$/) {
954: return $token->[4];
955: }
956: }
957:
958: sub end_drawoptionlist {
959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
960: if ($target !~ /^(?:meta|answer|modified|edit)$/) {
961: return $token->[2];
962: }
963: }
964:
965: sub insert_foil {
966: return '
967: <foil name="" value="unused">
968: <startouttext />
969: <endouttext />
970: </foil>';
971: }
972:
973: sub insert_drawoptionlist {
974: return '<drawoptionlist />';
975: }
976:
977: sub getnumrows {
978: my ($numitems) = @_;
979: my $bubbles_per_row;
980: my $default_numbubbles = 10;
981: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
982: ($env{'form.bubbles_per_row'} > 0)) {
983: $bubbles_per_row = $env{'form.bubbles_per_row'};
984: } else {
985: $bubbles_per_row = $default_numbubbles;
986: }
987: my $numrows = int ($numitems/$bubbles_per_row);
988: if (($numitems % $bubbles_per_row) != 0) {
989: $numrows ++;
990: }
991: return ($numrows,$bubbles_per_row);
992: }
993:
994: 1;
995: __END__
996:
997: =head1 NAME
998:
999: Apache::optionresponse.pm;
1000:
1001: =head1 SYNOPSIS
1002:
1003: Handles tags associated with showing a list of
1004: options.
1005:
1006: This is part of the LearningOnline Network with CAPA project
1007: described at http://www.lon-capa.org.
1008:
1009: =head1 HANDLER SUBROUTINE
1010:
1011: start_optionresponse()
1012:
1013: =head1 OTHER SUBROUTINES
1014:
1015: =over
1016:
1017: =item end_optionresponse()
1018:
1019: =item start_foilgroup()
1020:
1021: =item end_foilgroup()
1022:
1023: =item getfoilcounts()
1024:
1025: =item displayanswers()
1026:
1027: =item check_for_invalid()
1028:
1029: =item displayfoils()
1030:
1031: =item optionlist_correction()
1032:
1033: =item webbubbles()
1034:
1035: =item bubbles()
1036:
1037: =item start_conceptgroup()
1038:
1039: =item end_conceptgroup()
1040:
1041: =item insert_conceptgroup()
1042:
1043: =item start_foil()
1044:
1045: =item end_foil()
1046:
1047: =item start_drawoptionlist()
1048:
1049: =item end_drawoptionlist()
1050:
1051: =item insert_foil()
1052:
1053: =item insert_drawoptionlist()
1054:
1055: =back
1056:
1057: =cut
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