1: # LearningOnline Network with CAPA
2: # option list style responses
3: #
4: # $Id: optionresponse.pm,v 1.180 2011/09/30 16:47:08 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,$safeeval) ne 'nochoice');
206: if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
207: &Apache::lonxml::debug("Options are $#opt");
208: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
209: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
210: $safeeval,'-2');
211: if ($target eq 'web' || $target eq 'tex') {
212: $result.=&displayfoils($target,$max,$randomize,$TeXlayout,$checkboxvalue,$checkboxchoices,@opt);
213: $Apache::lonxml::post_evaluate=0;
214: } elsif ( $target eq 'answer') {
215: $result.=&displayanswers($max,$randomize,@opt);
216:
217: } elsif ( $target eq 'analyze') {
218: my @shown = &whichfoils($max,$randomize);
219: &Apache::response::analyze_store_foilgroup(\@shown,
220: ['text','value','location']);
221: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
222: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
223: } elsif ( $target eq 'grade') {
224:
225: my $nonlenient=0;
226: my $part=$Apache::inputtags::part;
227: my $lenientparm=&Apache::lonnet::EXT("resource.$part.lenient");
228:
229: if ($Apache::lonhomework::scantronmode) {
230: $nonlenient=0;
231: # Grading an exam: we are grading lenient unless told not to
232: if ($lenientparm=~/^0|off|no$/i) {
233: $nonlenient=1;
234: }
235: } else {
236: # Web mode: we are non-lenient unless told to
237: $nonlenient=1;
238: if ($lenientparm=~/^1|on|yes$/i) {
239: $nonlenient=0;
240: }
241: }
242: if ( &Apache::response::submitted()) {
243:
244: my @whichopt = &whichfoils($max,$randomize);
245: my $temp=1;my $name;
246: my %responsehash;
247: my %grade;
248: my $right=0;
249: my $wrong=0;
250: my $ignored=0;
251: my ($numrows,$bubbles_per_row);
252: if ($Apache::lonhomework::scantronmode) {
253: my $numitems = scalar(@opt);
254: ($numrows,$bubbles_per_row) =
255: &Apache::optionresponse::getnumrows($numitems);
256: }
257: if ($numrows < 1) {
258: $numrows = 1;
259: }
260: foreach $name (@whichopt) {
261: my $response;
262: if ($env{'form.submitted'} eq 'scantron') {
263: if ($numrows > 1) {
264: my $num = $temp;
265: my $totalnum;
266: for (my $i=0; $i<$numrows; $i++) {
267: my $item = &Apache::response::getresponse($num);
268: if ($item =~ /^\d+$/) {
269: $totalnum = $i*$bubbles_per_row + $item;
270: }
271: $num ++;
272: }
273: if ($totalnum =~ /^\d+$/) {
274: $response = $opt[$totalnum];
275: }
276: $temp += $numrows;
277: } else {
278: $response=&Apache::response::getresponse($temp);
279: if ($response=~/\S/) {
280: $response = $opt[$response];
281: }
282: $temp ++;
283: }
284: } else {
285: $response=&Apache::response::getresponse($temp);
286: $temp ++;
287: }
288: if ( $response =~ /[^\s]/) {
289: $responsehash{$name}=$response;
290: my $value=$Apache::response::foilgroup{$name.'.value'};
291: &Apache::lonxml::debug("submitted a $response for $value<br />\n");
292: if ($value eq $response) {
293: $grade{$name}='1'; $right++;
294: } else {
295: $grade{$name}='0'; $wrong++;
296: }
297: } else {
298: $ignored++;
299: }
300: }
301: my $part=$Apache::inputtags::part;
302: my $id = $Apache::inputtags::response['-1'];
303: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
304: my $gradestr =&Apache::lonnet::hash2str(%grade);
305: my %previous=&Apache::response::check_for_previous($responsestr,
306: $part,$id);
307: &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
308: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
309: $responsestr;
310: $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
311: if ($Apache::lonhomework::type eq 'randomizetry') {
312: $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichopt);
313: }
314: if (($Apache::lonhomework::type eq 'survey') ||
315: ($Apache::lonhomework::type eq 'surveycred') ||
316: ($Apache::lonhomework::type eq 'anonsurvey') ||
317: ($Apache::lonhomework::type eq 'anonsurveycred')) {
318: if ($ignored == 0) {
319: my $ad;
320: if ($Apache::lonhomework::type eq 'anonsurveycred') {
321: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
322: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
323: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
324: } elsif ($Apache::lonhomework::type eq 'surveycred') {
325: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
326: } else {
327: $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
328: }
329: &Apache::response::handle_previous(\%previous,$ad);
330: } elsif ($wrong==0 && $right==0) {
331: } else {
332: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
333: &Apache::response::handle_previous(\%previous,$ad);
334: }
335: } elsif ($nonlenient) {
336: #
337: # Non-lenient mode. All right or all wrong
338: #
339: my $ad;
340: if ($wrong==0 && $ignored==0) {
341: $ad='EXACT_ANS';
342: } elsif ($wrong==0 && $right==0) {
343: #nothing submitted
344: } else {
345: if ($ignored==0) {
346: $ad='INCORRECT';
347: } else {
348: $ad='MISSING_ANSWER';
349: }
350: }
351: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
352: &Apache::response::handle_previous(\%previous,$ad);
353: } else {
354: #
355: # This is lenient mode
356: #
357: my $ad;
358: if ($wrong==0 && $right==0) {
359: #nothing submitted only assign a score if we
360: #need to override a previous grade
361: if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
362: $ad='ASSIGNED_SCORE';
363: }
364: } else {
365: $ad='ASSIGNED_SCORE';
366: }
367: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
368: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
369: $right/(scalar(@whichopt));
370: $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
371: scalar(@whichopt);
372: }
373: }
374: }
375: my $part_id = $Apache::inputtags::part;
376: my $response_id = $Apache::inputtags::response[-1];
377: my ($numrows,$bubbles_per_row);
378: if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
379: ($numrows,$bubbles_per_row) =
380: &Apache::optionresponse::getnumrows(scalar(@opt));
381: }
382: if ($numrows < 1) {
383: $numrows = 1;
384: }
385: my $increment = &getfoilcounts($max) * $numrows;
386: &Apache::lonxml::increment_counter($increment,"$part_id.$response_id");
387: if ($target eq 'analyze') {
388: &Apache::lonhomework::set_bubble_lines();
389: }
390:
391: } elsif ($target eq 'edit') {
392: $result.=&Apache::edit::end_table();
393: }
394: if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
395: if($env{'form.pdfFormFields'} ne 'yes') {
396: $result .= '\end{itemize}';
397: } else {
398: $result .= "\\\\";
399: }
400: }
401: &Apache::response::poprandomnumber();
402: return $result;
403: }
404:
405: sub getfoilcounts {
406: my ($max)=@_;
407: # +1 since instructors will count from 1
408: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
409: if (&Apache::response::showallfoils()) { $max=$count; }
410: if ($count>$max) { $count=$max }
411: &Apache::lonxml::debug("Count is $count from $max");
412: return $count;
413: }
414:
415: sub whichfoils {
416: my ($max,$randomize)=@_;
417: return &Apache::response::whichorder($max,$randomize,
418: &Apache::response::showallfoils(),
419: \%Apache::response::foilgroup);
420: }
421:
422: sub displayanswers {
423: my ($max,$randomize,@opt)=@_;
424: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
425: my @names = @{ $Apache::response::foilgroup{'names'} };
426: my @whichopt = &whichfoils($max,$randomize);
427: my $result;
428: if ($Apache::lonhomework::type eq 'exam') {
429: my $i = 0;
430: my %opt = map { ($_,$i++) } @opt;
431:
432: $i = 0;
433: my @alphabet = ('A'..'Z');
434: foreach my $name (@whichopt) {
435: $result.=&Apache::response::answer_header('optionresponse',$i++);
436: $result.=&Apache::response::answer_part('optionresponse',
437: $alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
438: $result.=&Apache::response::answer_part('optionresponse',
439: $Apache::response::foilgroup{$name.'.value'});
440: $result.=&Apache::response::answer_footer('optionresponse');
441: }
442: } else {
443: $result=&Apache::response::answer_header('optionresponse');
444: foreach my $name (@whichopt) {
445: $result.=&Apache::response::answer_part('optionresponse',
446: $Apache::response::foilgroup{$name.'.value'});
447: }
448: $result.=&Apache::response::answer_footer('optionresponse');
449: }
450: return $result;
451: }
452:
453: sub check_box_opt {
454: my ($target,$checkboxvalue,@opt)=@_;
455: # Check if we are in checkbox mode: checkboxvalue specified, on web, only two options.
456: # If so, return "checked" value
457: if ($#opt!=1) { return ''; }
458: if ($target ne 'web') { return ''; }
459: return $checkboxvalue;
460: }
461:
462: sub check_for_invalid {
463: my ($names,$options) = @_;
464: my %bad_names;
465: foreach my $name (@{ $names }) {
466: my $value=$Apache::response::foilgroup{$name.'.value'};
467: my $found=0;
468: foreach my $option (@{ $options }) {
469: if ($value eq $option) { $found=1; }
470: }
471: if (!$found) { $bad_names{$name}=$value; }
472: }
473: if (%bad_names) {
474: my $error=&mt('The question can not be gotten correct, '.
475: 'the following foils in the <optionresponse> '.
476: 'have invalid correct options').' <br /><tt>'.
477: join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
478: "</tt>";
479: &Apache::lonxml::error($error);
480: }
481: }
482:
483: sub displayfoils {
484: my ($target,$max,$randomize,$TeXlayout,$checkboxvalue,$checkboxchoices,@opt)=@_;
485: if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
486: my @names = @{ $Apache::response::foilgroup{'names'} };
487: my @truelist;
488: my @falselist;
489: my $result;
490: my $name;
491: my $displayoptionintex=1;
492: my @alphabet = ('A'..'Z');
493: my @whichopt = &whichfoils($max,$randomize);
494: &check_for_invalid(\@whichopt,\@opt);
495: my $part=$Apache::inputtags::part;
496: my $id=$Apache::inputtags::response[-1];
497: my $break;
498: if ( ($target ne 'tex') &&
499: &Apache::response::show_answer() ) {
500: my $temp=1;
501: foreach $name (@whichopt) {
502: my $text=$Apache::response::foilgroup{$name.'.text'};
503: my $lastresp;
504: unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'}))) {
505: $lastresp = $Apache::lonhomework::history{"resource.$part.$id.submission"};
506: }
507: my %lastresponse=&Apache::lonnet::str2hash($lastresp);
508: my $lastopt=$lastresponse{$name};
509: if ($text!~/^\s*$/) { $break='<br />'; }
510: $result.=$break;
511: if ($target eq 'web') {
512: my $value=$Apache::response::foilgroup{$name.'.value'};
513: if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
514: if ($text=~/^\s*$/) {
515: $text=$value.$text;
516: } else {
517: $text='<b>'.$value.':</b> '.$text;
518: }
519: } else {
520: if (@whichopt > 1) {
521: $text='•'.$text;
522: }
523: }
524: $result.=$text."\n";
525: }
526: if ($Apache::lonhomework::type eq 'exam') {
527: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
528: }
529: $temp++;
530: }
531: } else {
532: my $temp=1;
533: my %lastresponse;
534: my $newvariation;
535: if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
536: ($Apache::lonhomework::type eq 'randomizetry')) &&
537: ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
538: if ($env{'form.'.$part.'.rndseed'} ne
539: $Apache::lonhomework::history{"resource.$part.rndseed"}) {
540: $newvariation = 1;
541: }
542: }
543: unless ($newvariation) {
544: %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
545: }
546: my $internal_counter=$Apache::lonxml::counter;
547: my $checkboxopt=&check_box_opt($target,$checkboxvalue,@opt);
548: if ($checkboxopt) {
549: $result.='<br />'.
550: ($checkboxchoices?&mt('Choices: ').'<b>'.$opt[0].','.$opt[1].'</b>. ':'').
551: &mt('Select all that are <b>[_1]</b>.',$checkboxopt);
552: }
553: foreach $name (@whichopt) {
554: my $text=$Apache::response::foilgroup{$name.'.text'};
555: if ($text!~/^\s*$/) {
556: if ($target eq 'tex') {
557: $break='\vskip 0 mm ';
558: } elsif ($target eq 'web') {
559: $break='<br />';
560: }
561: }
562: my $lastopt=$lastresponse{$name};
563: my $optionlist="<option></option>\n";
564:
565: if($target eq 'tex' and $env{'form.pdfFormFields'} eq 'yes'
566: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
567: my $fieldname = $env{'request.symb'}.'&part_'.$Apache::inputtags::part.'&optionresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'].':'.$temp;
568: $optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
569: }
570:
571: foreach my $option (@opt) {
572: my $escopt=&HTML::Entities::encode($option,'\'"&<>');
573: if ($option eq $lastopt) {
574: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
575: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
576: && $Apache::lonhomework::type ne 'exam') {
577: $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
578: } else {
579: $optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
580: }
581: } else {
582: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
583: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
584: && $Apache::lonhomework::type ne 'exam') {
585: $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
586: } else {
587: $optionlist.="<option value='".$escopt."'>$option</option>\n";
588: }
589: }
590: }
591: if ($target ne 'tex') {
592: if ($Apache::lonhomework::type ne 'exam') {
593: # we are on the web, this is not an exam, and the problem can be answered
594: if ($checkboxopt) {
595: # generate checkboxes
596: my $fieldname=$Apache::inputtags::response['-1'].':'.$temp;
597: my $altopt=$opt[0];
598: if ($opt[0] eq $checkboxopt) {
599: $altopt=$opt[1];
600: }
601: my $defopt=$lastopt;
602: unless ($defopt) { $defopt=$altopt; }
603: my $escdefopt=&HTML::Entities::encode($defopt,'\'"&<>');
604: my $esccheckboxopt=&HTML::Entities::encode($checkboxopt,'\'"&<>');
605: my $escaltopt=&HTML::Entities::encode($altopt,'\'"&<>');
606: # checkboxopt is how the box is labelled
607: # altopt is the alternative option
608: # lastopt is what the user submitted before
609: # defopt is what the field is going to start out with: either previous choice or altopt
610: # fieldname is this input field's name after HWVAL_
611: $optionlist='<input type="hidden" name="HWVAL_'.$fieldname.'" value="'.$escdefopt.'" />'.
612: '<input type="checkbox" name="HWCHK_'.$fieldname.'" onclick="javascript:if (this.form.elements[\'HWCHK_'.
613: $fieldname.'\'].checked) { this.form.elements[\'HWVAL_'.$fieldname.'\'].value=\''.$esccheckboxopt.'\'; } else { this.form.elements[\'HWVAL_'.$fieldname.'\'].value=\''.$escaltopt.'\'; };setSubmittedPart(\''.$part.'\');"'.($defopt eq $checkboxopt?' checked="checked"':'')." />\n";
614: } else {
615: # classic selection list
616: $optionlist='<select onchange="javascript:setSubmittedPart(\''.
617: $part.'\');" name="HWVAL_'.
618: $Apache::inputtags::response['-1'].':'.$temp.'">'.
619: $optionlist."</select>\n";
620: }
621: } else {
622: $optionlist='<u>'.(' 'x10).'</u>';
623: }
624: if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
625: if ($Apache::lonhomework::type ne 'exam') {
626: if (@whichopt > 1) {
627: $text='•'.$text;
628: }
629: }
630: } else {
631: if ($Apache::lonhomework::type ne 'exam') {
632: $text=$optionlist.$text;
633: }
634: }
635: $result.=$break.$text."\n";
636: if ($Apache::lonhomework::type eq 'exam') {
637: $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
638: }
639: $temp++;
640: } else {
641: my $texoptionlist='';
642: if ($displayoptionintex &&
643: $Apache::lonhomework::type ne 'exam') {
644: $texoptionlist = &optionlist_correction($TeXlayout,@opt);
645: }
646: if ($text=~/<drawoptionlist\s*\/>/) {
647: $text=~s|<drawoptionlist\s*\/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |g;
648: }
649:
650: if ($text=~m/\\item /) {
651: if ($Apache::lonhomework::type eq 'exam') {
652: $text=~s/\\item/\\vskip 2 mm/;
653: } elsif ($env{'form.pdfFormFields'} ne 'yes') {
654: $result.= $texoptionlist.$text;
655: }
656: } else {
657: if ($Apache::lonhomework::type eq 'exam') {
658: $result.= $texoptionlist.' '.$text;
659: } elsif ($env{'form.pdfFormFields'} ne 'yes') {
660: if ($text=~/\S/) {
661: $result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;
662: } else {
663: $result.= $texoptionlist;
664: }
665: }
666: }
667: if ($Apache::lonhomework::type eq 'exam') {
668: $result.='\vskip -1 mm\noindent';
669: my ($numrows,$bubbles_per_row) = &getnumrows(scalar(@opt));
670: if ($numrows == 1) {
671: $result .= '\textbf{'.$internal_counter.'}. \vskip -3mm';
672: } else {
673: my $linetext;
674: for (my $i=0; $i<$numrows; $i++) {
675: $linetext .= $internal_counter+$i.', ';
676: }
677: $linetext =~ s/,\s$//;
678: $result .= '\small {\textbf{'.$linetext.'}} '.
679: '\hskip 2 mm {\footnotesize '.
680: &mt('(Bubble once in [_1] lines)',$numrows).
681: '} \vskip 1 mm';
682: }
683: $result.= &bubbles(\@alphabet,\@opt,undef,undef,$numrows,
684: $bubbles_per_row,$internal_counter).
685: ' \strut ';
686: $internal_counter += $numrows;
687: }
688: if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
689: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
690: && $Apache::lonhomework::type ne 'exam') {
691: $text =~ s/\\item//m;
692: $result .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut \\\\';
693: $temp++;
694: }
695: $displayoptionintex=0;
696: }
697: }
698: }
699:
700: if ($target eq 'web') {
701: my $data = [\@whichopt,'submissiongrading'];
702: my $questiontype;
703: if ($Apache::lonhomework::type eq 'randomizetry') {
704: $questiontype = $Apache::lonhomework::type,
705: }
706: &Apache::response::setup_prior_tries_hash(\&Apache::rankresponse::format_prior_answer,$data,$questiontype);
707: }
708:
709: if ($target ne 'tex') {
710: return $result.$break;
711: } else {
712: return $result;
713: }
714: }
715:
716:
717: sub optionlist_correction {
718: my ($TeXlayout,@options) = @_;
719: my $texoptionlist='\\item [] '.&mt('Choices:').' ';
720: if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
721: if (scalar(@options) > 0) {
722: foreach my $option (@options) {
723: $texoptionlist.='{\bf '.
724: &Apache::lonxml::latex_special_symbols($option).
725: '}';
726: if ($TeXlayout eq 'vertical') {
727: $texoptionlist.=' \vskip 0 mm ',
728: } else {
729: $texoptionlist.=', ';
730: }
731: }
732: $texoptionlist=~s/, $//;
733: if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
734: } else {
735: if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
736: }
737: return $texoptionlist;
738: }
739:
740:
741: sub webbubbles {
742: my ($ropt,$ralphabet,$temp,$lastopt)=@_;
743: my @opt=@$ropt;
744: my @alphabet=@$ralphabet;
745: my $result='';
746: my $number_of_bubbles = $#opt + 1;
747: $result.= '<table border="1"><tr>';
748: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
749: my $checked='';
750: if ($lastopt eq $opt[$ind]) {
751: $checked=' checked="on" ';
752: }
753: $result.='<td><input type="radio" name="HWVAL_'.
754: $Apache::inputtags::response['-1'].':'.$temp.
755: '" value="'.$opt[$ind].'" '.$checked.' />';
756: if ($alphabet[$ind]) {
757: $result.=$alphabet[$ind].': ';
758: }
759: $result.=$opt[$ind].'</td>';
760: }
761: $result.='</tr></table>';
762: return $result;
763: }
764:
765:
766: sub bubbles {
767: my ($ralphabet,$ropt,$response,$max_width,$numrows,$bubbles_per_row,
768: $internal_counter) = @_;
769: my @alphabet = @$ralphabet;
770: my @opt = @$ropt;
771: my ($result,$head,$line) =('','','');
772: my $number_of_bubbles = $#opt + 1;
773: my $current_length = 0;
774: my $textwidth;
775: if (defined($max_width)) {
776: $textwidth=$max_width;
777: &Apache::lonxml::debug("Max width passed in: $max_width");
778: } elsif ($env{'form.textwidth'} ne '') {
779: $env{'form.textwidth'}=~/(\d+)/;
780: $textwidth=$1;
781: &Apache::lonxml::debug("Max width from form: $textwidth");
782: } else {
783: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
784: $textwidth=$1.'.'.$2;
785: &Apache::lonxml::debug("Max width defaults? $textwidth");
786: }
787: &Apache::lonxml::debug("Final maxwidth: $textwidth");
788: for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
789: my $item;
790: if ($numrows > 1) {
791: my $num = $internal_counter+int($ind/$bubbles_per_row);
792: my $idx = int($ind % $bubbles_per_row);
793: $item = $num.$alphabet[$idx];
794: } else {
795: $item = $alphabet[$ind];
796: }
797: my $leftmargin;
798: $opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
799: if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
800: if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
801:
802: $current_length += (length($opt[$ind])+length($item)+4)*2;
803:
804: if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
805:
806: $line.='\hskip 4 mm {\small \textbf{'.$item.'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
807: $head.='lr';
808: } else {
809: $line=~s/\&\s*$//;
810: $result.='\vskip -1 mm\noindent\setlength{\tabcolsep}{2 mm}\renewcommand{\arraystretch}{1.25}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
811: $line = '\hskip 4 mm {\small \textbf{'.$item.'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
812: $head ='lr';
813: $current_length = (length($opt[$ind])+length($item))*2;
814: }
815:
816: }
817: return $result;
818: }
819:
820: sub start_conceptgroup {
821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
822: $Apache::optionresponse::conceptgroup=1;
823: %Apache::response::conceptgroup=();
824: my $result;
825: if ($target eq 'edit') {
826: $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
827: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
828: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
829: }
830: if ($target eq 'modified') {
831: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
832: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
833: }
834: return $result;
835: }
836:
837: sub end_conceptgroup {
838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
839: $Apache::optionresponse::conceptgroup=0;
840: my $result='';
841: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
842: $target eq 'tex' || $target eq 'analyze') {
843: #if not there aren't any foils to display and thus no question
844: &Apache::response::pick_foil_for_concept($target,
845: ['value','text','location'],
846: \%Apache::hint::option,
847: $parstack,$safeeval);
848: } elsif ($target eq 'edit') {
849: $result=&Apache::edit::end_table();
850: }
851: return $result;
852: }
853:
854: sub insert_conceptgroup {
855: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
856: return $result;
857: }
858:
859: sub start_foil {
860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
861: my $result='';
862: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
863: &Apache::lonxml::startredirection;
864: if ($target eq 'analyze') {
865: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
866: }
867: } elsif ($target eq 'edit') {
868: $result=&Apache::edit::tag_start($target,$token,"Foil");
869: my $level='-2';
870: if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
871: my @opt;
872: eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
873: $result.=&Apache::edit::text_arg('Name:','name',$token);
874: $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
875: ['unused',(@opt)],$token,'15');
876: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
877: $safeeval,'-3');
878: if ($randomize ne 'no') {
879: $result.=&Apache::edit::select_arg('Location:','location',
880: ['random','top','bottom'],$token);
881: }
882: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
883: } elsif ($target eq 'modified') {
884: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
885: 'value','name','location');
886: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
887: }
888: return $result;
889: }
890:
891: sub end_foil {
892: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
893: my $text ='';
894: my $result = '';
895: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
896: $text=&Apache::lonxml::endredirection;
897: if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
898: if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;}
899: }
900: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
901: || $target eq 'tex' || $target eq 'analyze') {
902: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
903: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
904: $text='\vskip 5mm $\triangleright$ '.$text;
905: }
906: if ($value ne 'unused') {
907: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
908: &Apache::lonxml::debug("Got a name of :$name:");
909: if ($name eq "") {
910: &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
911: $name=$Apache::lonxml::curdepth;
912: }
913: &Apache::lonxml::debug("Using a name of :$name:");
914: if (defined($Apache::response::foilnames{$name})) {
915: &Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
916: }
917: $Apache::response::foilnames{$name}++;
918: my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
919: if ( $Apache::optionresponse::conceptgroup
920: && !&Apache::response::showallfoils() ) {
921: push @{ $Apache::response::conceptgroup{'names'} }, $name;
922: $Apache::response::conceptgroup{"$name.value"} = $value;
923: $Apache::response::conceptgroup{"$name.text"} = $text;
924: $Apache::response::conceptgroup{"$name.location"} = $location;
925: } else {
926: push @{ $Apache::response::foilgroup{'names'} }, $name;
927: $Apache::response::foilgroup{"$name.value"} = $value;
928: $Apache::response::foilgroup{"$name.text"} = $text;
929: $Apache::response::foilgroup{"$name.location"} = $location;
930: }
931: }
932: }
933: if ($target eq 'edit') {
934: $result.= &Apache::edit::tag_end($target,$token,'');
935: }
936: return $result;
937: }
938:
939: sub start_drawoptionlist {
940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
941: if ($target !~ /^(?:meta|answer|modified|edit)$/) {
942: return $token->[4];
943: }
944: }
945:
946: sub end_drawoptionlist {
947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
948: if ($target !~ /^(?:meta|answer|modified|edit)$/) {
949: return $token->[2];
950: }
951: }
952:
953: sub insert_foil {
954: return '
955: <foil name="" value="unused">
956: <startouttext />
957: <endouttext />
958: </foil>';
959: }
960:
961: sub insert_drawoptionlist {
962: return '<drawoptionlist />';
963: }
964:
965: sub getnumrows {
966: my ($numitems) = @_;
967: my $bubbles_per_row;
968: my $default_numbubbles = 10;
969: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
970: ($env{'form.bubbles_per_row'} > 0)) {
971: $bubbles_per_row = $env{'form.bubbles_per_row'};
972: } else {
973: $bubbles_per_row = $default_numbubbles;
974: }
975: my $numrows = int ($numitems/$bubbles_per_row);
976: if (($numitems % $bubbles_per_row) != 0) {
977: $numrows ++;
978: }
979: return ($numrows,$bubbles_per_row);
980: }
981:
982: 1;
983: __END__
984:
985: =head1 NAME
986:
987: Apache::optionresponse.pm;
988:
989: =head1 SYNOPSIS
990:
991: Handles tags associated with showing a list of
992: options.
993:
994: This is part of the LearningOnline Network with CAPA project
995: described at http://www.lon-capa.org.
996:
997: =head1 HANDLER SUBROUTINE
998:
999: start_optionresponse()
1000:
1001: =head1 OTHER SUBROUTINES
1002:
1003: =over
1004:
1005: =item end_optionresponse()
1006:
1007: =item start_foilgroup()
1008:
1009: =item end_foilgroup()
1010:
1011: =item getfoilcounts()
1012:
1013: =item displayanswers()
1014:
1015: =item check_for_invalid()
1016:
1017: =item displayfoils()
1018:
1019: =item optionlist_correction()
1020:
1021: =item webbubbles()
1022:
1023: =item bubbles()
1024:
1025: =item start_conceptgroup()
1026:
1027: =item end_conceptgroup()
1028:
1029: =item insert_conceptgroup()
1030:
1031: =item start_foil()
1032:
1033: =item end_foil()
1034:
1035: =item start_drawoptionlist()
1036:
1037: =item end_drawoptionlist()
1038:
1039: =item insert_foil()
1040:
1041: =item insert_drawoptionlist()
1042:
1043: =back
1044:
1045: =cut
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