Annotation of loncom/homework/optionresponse.pm, revision 1.177

1.46      sakharuk    1: # LearningOnline Network with CAPA
1.22      albertel    2: # option list style responses
1.27      albertel    3: #
1.177   ! raeburn     4: # $Id: optionresponse.pm,v 1.176 2011/06/07 17:27:37 www Exp $
1.27      albertel    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: #
1.154     jms        28: 
                     29: 
                     30: 
                     31: 
                     32: 
1.1       albertel   33: package Apache::optionresponse;
                     34: use strict;
1.103     albertel   35: use Apache::response();
                     36: use Apache::lonlocal;
1.125     albertel   37: use Apache::lonnet;
1.1       albertel   38: 
1.31      harris41   39: BEGIN {
1.1       albertel   40:   &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
                     41: }
                     42: 
                     43: sub start_optionresponse {
1.22      albertel   44:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     45:   my $result='';
1.29      albertel   46:   #when in a option response use these
1.112     sakharuk   47:   &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
1.22      albertel   48:   push (@Apache::lonxml::namespace,'optionresponse');
                     49:   my $id = &Apache::response::start_response($parstack,$safeeval);
1.57      albertel   50:   %Apache::hint::option=();
1.103     albertel   51:   undef(%Apache::response::foilnames);
1.22      albertel   52:   if ($target eq 'edit') {
1.153     bisitz     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>&nbsp;"
                     60:        .&Apache::edit::end_row()
                     61:        .&Apache::edit::start_spanning_row()
                     62:        ."\n";
1.48      albertel   63:     $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
                     64: 				     $token,'4').
1.153     bisitz     65:         &Apache::edit::select_arg('Randomize Foil Order:','randomize',
1.48      albertel   66: 				  ['yes','no'],$token).
1.108     albertel   67:         &Apache::edit::select_arg(&mt('Display of options when printed'),'TeXlayout',
1.157     raeburn    68: 				  [['horizontal','Normal list'],
                     69: 				   ['vertical','Listed in a vertical column']],$token).
1.48      albertel   70:         &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.34      albertel   71:   } elsif ($target eq 'modified') {
1.23      albertel   72:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.108     albertel   73: 						 $safeeval,'max','randomize',
                     74: 						 'TeXlayout');
1.22      albertel   75:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.34      albertel   76:   } elsif ($target eq 'meta') {
1.23      albertel   77:     $result=&Apache::response::meta_package_write('optionresponse');
1.34      albertel   78:   } elsif ($target eq 'analyze') {
1.93      albertel   79:     my $part_id="$Apache::inputtags::part.$id";
1.149     raeburn    80:     $Apache::lonhomework::analyze{"$part_id.type"} = 'optionresponse';
1.34      albertel   81:     push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.148     raeburn    82:     push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} }, 1);
1.145     foxr       83: 
1.22      albertel   84:   }
                     85:   return $result;
1.1       albertel   86: }
                     87: 
                     88: sub end_optionresponse {
1.22      albertel   89:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     90:   &Apache::response::end_response;
                     91:   pop @Apache::lonxml::namespace;
1.112     sakharuk   92:   &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
1.22      albertel   93:   my $result;
                     94:   if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
1.103     albertel   95:   undef(%Apache::response::foilnames);
1.22      albertel   96:   return $result;
1.1       albertel   97: }
                     98: 
1.44      albertel   99: %Apache::response::foilgroup=();
1.1       albertel  100: sub start_foilgroup {
1.22      albertel  101:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    102: 
                    103:   my $result='';
1.44      albertel  104:   %Apache::response::foilgroup=();
1.22      albertel  105:   $Apache::optionresponse::conceptgroup=0;
1.173     raeburn   106:   &Apache::response::pushrandomnumber(undef,$target);
1.22      albertel  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:     $result.= (<<ENDTABLE);
                    120:       <tr><td>Select Options</td>
1.13      albertel  121:         <td>
                    122: 	  Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
                    123:         </td>
                    124:         <td>Delete an Option:
                    125: 	  <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
1.162     www       126:         </td>
1.13      albertel  127: ENDTABLE
1.162     www       128:     $result.= '<td>'.&Apache::edit::checked_arg('Print options:','texoptions',
1.132     albertel  129: 					 [ ['nochoice','Don\'t show option list'] ]
1.162     www       130: 					 ,$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:     }
1.172     www       140:     $result.='</select></label>';
                    141:     $result.=&Apache::edit::checked_arg('Checkbox options:','checkboxoptions',
                    142:                                          [ ['nochoice','Don\'t show option list'] ]
                    143:                                          ,$token).'</td>';
1.30      matthew   144:     $result.= &Apache::edit::end_row();
                    145:     $result.= &Apache::edit::start_spanning_row();
                    146:     $result.= $insertlist.'<br />';
1.22      albertel  147:   }
                    148:   if ($target eq 'modified') {
                    149:     my @options;
                    150:     my $optchanged=0;
                    151:     eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
1.125     albertel  152:     if ($env{"form.$Apache::lonxml::curdepth.deleteopt"}) {
                    153:       my $delopt=$env{"form.$Apache::lonxml::curdepth.deleteopt"};
1.22      albertel  154:       &Apache::lonxml::debug("Deleting :$delopt:");
                    155:       splice(@options,$delopt-1,1);
                    156:       $optchanged=1;
                    157:     }
1.125     albertel  158:     if ($env{"form.$Apache::lonxml::curdepth.options"}) {
                    159:       my $newopt = $env{"form.$Apache::lonxml::curdepth.options"};
1.22      albertel  160:       if ($options[0]) {
                    161: 	push(@options,$newopt);
                    162:       } else {
                    163: 	$options[0]=$newopt;
                    164:       }
                    165:       $optchanged=1;
                    166:     }
1.132     albertel  167:     my $rebuildtag = &Apache::edit::get_new_args($token,$parstack,$safeeval,
1.172     www       168: 						 'texoptions','checkboxvalue','checkboxoptions');
1.132     albertel  169:     if ($optchanged || $rebuildtag ) {
1.22      albertel  170:       $result = "<foilgroup options=\"(";
                    171:       foreach my $option (@options) {
1.41      albertel  172: 	$option=~s/\'/\\\'/g;
1.22      albertel  173: 	&Apache::lonxml::debug("adding option :$option:");
                    174: 	$result .="'".$option."',";
                    175:       }
                    176:       chop $result;
1.132     albertel  177:       $result.=')" ';
                    178:       $result .= 'texoptions="'.$token->[2]{'texoptions'}.'" ';
1.172     www       179:       $result .= 'checkboxoptions="'.$token->[2]{'checkboxoptions'}.'" ';
1.162     www       180:       $result .= 'checkboxvalue="'.$token->[2]{'checkboxvalue'}.'"';
1.132     albertel  181:       $result .= '>';
1.22      albertel  182:     } # else nothing changed so just use the default mechanism
                    183:   }
1.68      sakharuk  184:   if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
1.152     onken     185:     if($env{'form.pdfFormFields'} ne 'yes') {
1.167     raeburn   186:       $result .= ' \begin{itemize} ';
1.152     onken     187:     } else {
                    188:       $result .= "\\\\";
                    189:     }
1.42      sakharuk  190:   }
1.22      albertel  191:   return $result;
1.1       albertel  192: }
                    193: 
                    194: sub end_foilgroup {
1.22      albertel  195:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    196:   
                    197:   my $result;
1.94      albertel  198:   if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
                    199:       $target eq 'tex' || $target eq 'analyze') {
1.81      sakharuk  200:     my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
1.22      albertel  201:     my $name;
                    202:     my @opt;
                    203:     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
1.126     albertel  204:     &Apache::lonxml::debug("options:".join(':',@opt));
                    205: 
1.108     albertel  206:     my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
                    207: 					     -2,0);
1.161     www       208:     my $checkboxvalue=&Apache::lonxml::get_param('checkboxvalue',$parstack,$safeeval);
1.172     www       209:     my $checkboxchoices=(&Apache::lonxml::get_param('checkboxoptions',$parstack,$safeeval) ne 'nochoice');
1.81      sakharuk  210:     if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
1.22      albertel  211:     &Apache::lonxml::debug("Options are $#opt");
1.48      albertel  212:     my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
                    213:     my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
                    214: 					       $safeeval,'-2');
1.32      sakharuk  215:     if ($target eq 'web' || $target eq 'tex') {
1.172     www       216:       $result.=&displayfoils($target,$max,$randomize,$TeXlayout,$checkboxvalue,$checkboxchoices,@opt);
1.137     albertel  217:       $Apache::lonxml::post_evaluate=0;
1.25      albertel  218:     } elsif ( $target eq 'answer') {
1.48      albertel  219:       $result.=&displayanswers($max,$randomize,@opt);
1.136     foxr      220:       
1.34      albertel  221:     } elsif ( $target eq 'analyze') {
1.93      albertel  222: 	my @shown = &whichfoils($max,$randomize);
1.94      albertel  223: 	&Apache::response::analyze_store_foilgroup(\@shown,
                    224: 						  ['text','value','location']);
1.93      albertel  225: 	my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
                    226: 	push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
1.22      albertel  227:     } elsif ( $target eq 'grade') {
1.175     www       228: 
1.174     www       229:       my $nonlenient=0;
                    230:       my $part=$Apache::inputtags::part;
                    231:       my $lenientparm=&Apache::lonnet::EXT("resource.$part.lenient");
                    232: 
                    233:       if ($Apache::lonhomework::scantronmode) {
                    234:          $nonlenient=0;
                    235: # Grading an exam: we are grading lenient unless told not to
                    236:          if ($lenientparm=~/^0|off|no$/i) {
                    237:             $nonlenient=1;
                    238:          }
                    239:       } else {
                    240: # Web mode: we are non-lenient unless told to
                    241:          $nonlenient=1;
                    242:          if ($lenientparm=~/^1|on|yes$/i) {
                    243:             $nonlenient=0;
                    244:          }
                    245:       }
1.124     albertel  246:       if ( &Apache::response::submitted()) {
1.175     www       247: 
1.48      albertel  248: 	my @whichopt = &whichfoils($max,$randomize);
1.22      albertel  249: 	my $temp=1;my $name;
1.26      albertel  250: 	my %responsehash;
1.57      albertel  251: 	my %grade;
1.22      albertel  252: 	my $right=0;
                    253: 	my $wrong=0;
                    254: 	my $ignored=0;
1.177   ! raeburn   255:         my ($numrows,$bubbles_per_row);
        !           256:         if ($Apache::lonhomework::scantronmode) {
        !           257:             my $numitems = scalar(@opt);
        !           258:             ($numrows,$bubbles_per_row) =
        !           259:                 &Apache::optionresponse::getnumrows($numitems);
        !           260:         }
        !           261:         if ($numrows < 1) {
        !           262:             $numrows = 1;
        !           263:         }
1.22      albertel  264: 	foreach $name (@whichopt) {
1.177   ! raeburn   265: 	  my $response;
        !           266:           if ($env{'form.submitted'} eq 'scantron') {
        !           267:               if ($numrows > 1) {
        !           268:                   my $num = $temp;
        !           269:                   my $totalnum;
        !           270:                   for (my $i=0; $i<$numrows; $i++) {
        !           271:                       my $item = &Apache::response::getresponse($num);
        !           272:                       if ($item =~ /^\d+$/) {
        !           273:                           $totalnum = $i*$bubbles_per_row + $item;
        !           274:                       }
        !           275:                       $num ++;
        !           276:                   }
        !           277:                   if ($totalnum =~ /^\d+$/) {
        !           278:                       $response = $opt[$totalnum];
        !           279:                   }
        !           280:                   $temp += $numrows;
        !           281:               } else {
        !           282:                   if ($response=~/\S/) {
        !           283:                       $response = $opt[$response];
        !           284:                   }
        !           285:                   $temp ++;
        !           286:               }
        !           287: 	  } else {
        !           288:               $temp ++;
        !           289:           }
1.22      albertel  290: 	  if ( $response =~ /[^\s]/) {
1.96      albertel  291: 	    $responsehash{$name}=$response;
1.22      albertel  292: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
1.34      albertel  293: 	    &Apache::lonxml::debug("submitted a $response for $value<br />\n");
1.57      albertel  294: 	    if ($value eq $response) {
                    295: 		$grade{$name}='1'; $right++;
                    296: 	    } else {
                    297: 		$grade{$name}='0'; $wrong++;
                    298: 	    }
1.22      albertel  299: 	  } else {
                    300: 	    $ignored++;
                    301: 	  }
                    302: 	}
1.28      albertel  303: 	my $part=$Apache::inputtags::part;
1.22      albertel  304: 	my $id = $Apache::inputtags::response['-1'];
1.28      albertel  305: 	my $responsestr=&Apache::lonnet::hash2str(%responsehash);
1.57      albertel  306: 	my $gradestr   =&Apache::lonnet::hash2str(%grade);
1.28      albertel  307: 	my %previous=&Apache::response::check_for_previous($responsestr,
                    308: 							   $part,$id);
1.22      albertel  309: 	&Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
1.75      albertel  310: 	$Apache::lonhomework::results{"resource.$part.$id.submission"}=
                    311: 	    $responsestr;
                    312: 	$Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
1.173     raeburn   313:         if ($Apache::lonhomework::type eq 'randomizetry') {
                    314:             $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichopt);
                    315:         }
1.163     raeburn   316: 	if (($Apache::lonhomework::type eq 'survey') ||
                    317:             ($Apache::lonhomework::type eq 'surveycred') ||
                    318:             ($Apache::lonhomework::type eq 'anonsurvey') ||
                    319:             ($Apache::lonhomework::type eq 'anonsurveycred')) {
1.121     albertel  320: 	    if ($ignored == 0) {
1.163     raeburn   321:                 my $ad;
                    322:                 if ($Apache::lonhomework::type eq 'anonsurveycred') {
                    323:                     $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
                    324:                 } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
                    325:                     $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
                    326:                 } elsif ($Apache::lonhomework::type eq 'surveycred') {
                    327:                     $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
                    328:                 } else {
                    329: 		    $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
                    330:                 }
1.121     albertel  331: 		&Apache::response::handle_previous(\%previous,$ad);
                    332: 	    } elsif ($wrong==0 && $right==0) {
                    333: 	    } else {
                    334: 		my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
                    335: 		&Apache::response::handle_previous(\%previous,$ad);
                    336: 	    }
1.174     www       337: 	} elsif ($nonlenient) {
                    338: #
                    339: # Non-lenient mode. All right or all wrong
                    340: #
1.75      albertel  341: 	    my $ad;
                    342: 	    if ($wrong==0 && $ignored==0) {
                    343: 		$ad='EXACT_ANS';
                    344: 	    } elsif ($wrong==0 && $right==0) {
                    345: 		#nothing submitted
                    346: 	    } else {
                    347: 		if ($ignored==0) {
                    348: 		    $ad='INCORRECT';
                    349: 		} else {
                    350: 		    $ad='MISSING_ANSWER';
                    351: 		}
                    352: 	    }
                    353: 	    $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    354: 	    &Apache::response::handle_previous(\%previous,$ad);
1.22      albertel  355: 	} else {
1.174     www       356: #
                    357: # This is lenient mode
                    358: #
1.75      albertel  359: 	    my $ad;
                    360: 	    if ($wrong==0 && $right==0) {
1.120     albertel  361: 		#nothing submitted only assign a score if we 
                    362: 		#need to override a previous grade
                    363: 		if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
                    364: 		    $ad='ASSIGNED_SCORE';
                    365: 		}
1.75      albertel  366: 	    } else {
                    367: 		$ad='ASSIGNED_SCORE';
                    368: 	    }
                    369: 	    $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    370: 	    $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
                    371: 		$right/(scalar(@whichopt));
1.76      albertel  372: 	    $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
                    373: 		scalar(@whichopt);
1.1       albertel  374: 	}
1.22      albertel  375:       }
1.1       albertel  376:     }
1.147     foxr      377:     my $part_id     = $Apache::inputtags::part;
                    378:     my $response_id = $Apache::inputtags::response[-1];
1.177   ! raeburn   379:     my ($numrows,$bubbles_per_row);
        !           380:     if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
        !           381:         ($numrows,$bubbles_per_row) =
        !           382:             &Apache::optionresponse::getnumrows(scalar(@opt));
        !           383:     }
        !           384:     if ($numrows < 1) {
        !           385:         $numrows = 1;
        !           386:     }
        !           387:     my $increment = &getfoilcounts($max) * $numrows;
        !           388:     &Apache::lonxml::increment_counter($increment,"$part_id.$response_id");
1.146     foxr      389:     if ($target eq 'analyze') {
                    390: 	&Apache::lonhomework::set_bubble_lines();
                    391:     }
                    392: 
1.25      albertel  393:   } elsif ($target eq 'edit') {
1.22      albertel  394:     $result.=&Apache::edit::end_table();
1.74      albertel  395:   }
                    396:   if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
1.152     onken     397:     if($env{'form.pdfFormFields'} ne 'yes') {
1.167     raeburn   398:       $result .= '\end{itemize}'; 
1.152     onken     399:     } else {
                    400:       $result .= "\\\\";
                    401:     }
1.74      albertel  402:   }
1.110     albertel  403:   &Apache::response::poprandomnumber();
1.22      albertel  404:   return $result;
1.1       albertel  405: }
                    406: 
                    407: sub getfoilcounts {
1.48      albertel  408:   my ($max)=@_;
1.22      albertel  409:   # +1 since instructors will count from 1
                    410:   my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
1.39      albertel  411:   if (&Apache::response::showallfoils()) { $max=$count; }
1.48      albertel  412:   if ($count>$max) { $count=$max } 
                    413:   &Apache::lonxml::debug("Count is $count from $max");
                    414:   return $count;
1.1       albertel  415: }
                    416: 
                    417: sub whichfoils {
1.77      albertel  418:     my ($max,$randomize)=@_;
                    419:     return &Apache::response::whichorder($max,$randomize,
                    420: 					 &Apache::response::showallfoils(),
                    421: 					 \%Apache::response::foilgroup);
1.1       albertel  422: }
                    423: 
1.25      albertel  424: sub displayanswers {
1.130     albertel  425:     my ($max,$randomize,@opt)=@_;
                    426:     if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
                    427:     my @names = @{ $Apache::response::foilgroup{'names'} };
                    428:     my @whichopt = &whichfoils($max,$randomize);
                    429:     my $result;
                    430:     if ($Apache::lonhomework::type eq 'exam') {
                    431: 	my $i = 0;
                    432: 	my %opt = map { ($_,$i++) } @opt;
                    433: 	
                    434: 	$i = 0;
                    435: 	my @alphabet = ('A'..'Z');
                    436: 	foreach my $name (@whichopt) {
                    437: 	    $result.=&Apache::response::answer_header('optionresponse',$i++);
                    438: 	    $result.=&Apache::response::answer_part('optionresponse',
                    439: 						    $alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
                    440: 	    $result.=&Apache::response::answer_part('optionresponse',
                    441: 						    $Apache::response::foilgroup{$name.'.value'});
                    442: 	    $result.=&Apache::response::answer_footer('optionresponse');
                    443: 	}
                    444:     } else {
                    445: 	$result=&Apache::response::answer_header('optionresponse');
                    446: 	foreach my $name (@whichopt) {
                    447: 	    $result.=&Apache::response::answer_part('optionresponse',
                    448: 						    $Apache::response::foilgroup{$name.'.value'});
                    449: 	}
                    450: 	$result.=&Apache::response::answer_footer('optionresponse');
                    451:     }
                    452:     return $result;
1.25      albertel  453: }
                    454: 
1.160     www       455: sub check_box_opt {
1.161     www       456:     my ($target,$checkboxvalue,@opt)=@_;
                    457: # Check if we are in checkbox mode: checkboxvalue specified, on web, only two options.
                    458: # If so, return "checked" value
                    459:     if ($#opt!=1) { return ''; }
                    460:     if ($target ne 'web') { return ''; }
                    461:     return $checkboxvalue;
1.160     www       462: }
                    463: 
1.106     albertel  464: sub check_for_invalid {
                    465:     my ($names,$options) = @_;
                    466:     my %bad_names;
                    467:     foreach my $name (@{ $names }) {
                    468: 	my $value=$Apache::response::foilgroup{$name.'.value'};
                    469: 	my $found=0;
                    470: 	foreach my $option (@{ $options }) {
                    471: 	    if ($value eq $option) { $found=1; }
                    472: 	}
                    473: 	if (!$found) { $bad_names{$name}=$value; }
                    474:     }
                    475:     if (%bad_names) {
                    476: 	my $error=&mt('The question can not be gotten correct, '.
                    477: 	    'the following foils in the &lt;optionresponse&gt; '.
                    478: 	    'have invalid correct options').' <br /><tt>'.
                    479: 	    join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
                    480: 	    "</tt>";
                    481: 	&Apache::lonxml::error($error);
                    482:     }
                    483: }
                    484: 
1.1       albertel  485: sub displayfoils {
1.172     www       486:   my ($target,$max,$randomize,$TeXlayout,$checkboxvalue,$checkboxchoices,@opt)=@_;
1.67      albertel  487:   if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
1.22      albertel  488:   my @names = @{ $Apache::response::foilgroup{'names'} };
                    489:   my @truelist;
                    490:   my @falselist;
1.79      sakharuk  491:   my $result;  
1.22      albertel  492:   my $name;
1.101     albertel  493:   my $displayoptionintex=1;
1.72      sakharuk  494:   my @alphabet = ('A'..'Z');
1.48      albertel  495:   my @whichopt = &whichfoils($max,$randomize);
1.106     albertel  496:   &check_for_invalid(\@whichopt,\@opt);
1.28      albertel  497:   my $part=$Apache::inputtags::part;
                    498:   my $id=$Apache::inputtags::response[-1];
1.62      albertel  499:   my $break;
1.86      albertel  500:   if ( ($target ne 'tex') &&
                    501:        &Apache::response::show_answer() ) {
1.90      albertel  502:     my $temp=1;
1.22      albertel  503:     foreach $name (@whichopt) {
1.62      albertel  504: 	my $text=$Apache::response::foilgroup{$name.'.text'};
1.163     raeburn   505:         my $lastresp;
                    506:         unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'}))) {
                    507:             $lastresp = $Apache::lonhomework::history{"resource.$part.$id.submission"};
                    508:         }
                    509: 	my %lastresponse=&Apache::lonnet::str2hash($lastresp);
1.90      albertel  510: 	my $lastopt=$lastresponse{$name};
1.101     albertel  511: 	if ($text!~/^\s*$/) { $break='<br />'; }
1.62      albertel  512: 	$result.=$break;
1.113     sakharuk  513: 	if ($target eq 'web') {
1.62      albertel  514: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
                    515: 	    if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
                    516: 		if ($text=~/^\s*$/) {
                    517: 		    $text=$value.$text;
                    518: 		} else {
1.127     albertel  519: 		    $text='<b>'.$value.':</b> '.$text;
1.62      albertel  520: 		}
1.95      albertel  521: 	    } else {
1.170     raeburn   522:                 if (@whichopt > 1) {
                    523:                     $text='&#149;'.$text;
                    524:                 }
1.62      albertel  525: 	    }
                    526: 	    $result.=$text."\n";
1.112     sakharuk  527: 	}
1.58      sakharuk  528:       if ($Apache::lonhomework::type eq 'exam') {
1.90      albertel  529: 	  $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
1.58      sakharuk  530:       }
1.90      albertel  531:       $temp++;
1.22      albertel  532:     }
                    533:   } else {
                    534:     my $temp=1;
1.173     raeburn   535:     my %lastresponse;
                    536:     my $newvariation;
                    537:     if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
                    538:         ($Apache::lonhomework::type eq 'randomizetry')) &&
                    539:         ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
                    540:         if ($env{'form.'.$part.'.rndseed'} ne
                    541:             $Apache::lonhomework::history{"resource.$part.rndseed"}) {
                    542:             $newvariation = 1;
                    543:         }
                    544:     }
                    545:     unless ($newvariation) {
                    546:         %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
                    547:     }
1.79      sakharuk  548:     my $internal_counter=$Apache::lonxml::counter;
1.161     www       549:     my $checkboxopt=&check_box_opt($target,$checkboxvalue,@opt);
1.160     www       550:     if ($checkboxopt) {
1.172     www       551:        $result.='<br />'.
                    552:                 ($checkboxchoices?&mt('Choices: ').'<b>'.$opt[0].','.$opt[1].'</b>. ':'').
1.168     www       553:                  &mt('Select all that are <b>[_1]</b>.',$checkboxopt);
1.160     www       554:     }
1.22      albertel  555:     foreach $name (@whichopt) {
1.62      albertel  556:       my $text=$Apache::response::foilgroup{$name.'.text'};
                    557:       if ($text!~/^\s*$/) {
                    558: 	  if ($target eq 'tex') {
                    559: 	      $break='\vskip 0 mm ';
                    560: 	  } elsif ($target eq 'web') {
                    561: 	      $break='<br />';
                    562: 	  }
                    563:       }
1.28      albertel  564:       my $lastopt=$lastresponse{$name};
                    565:       my $optionlist="<option></option>\n";
1.152     onken     566: 
1.158     onken     567:       if($target eq 'tex' and $env{'form.pdfFormFields'} eq 'yes'
                    568:          && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
1.152     onken     569:           my $fieldname = $env{'request.symb'}.'&part_'.$Apache::inputtags::part.'&optionresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'].':'.$temp;
                    570:           $optionlist =  &Apache::lonxml::print_pdf_start_combobox($fieldname);
                    571:       }
                    572: 
1.126     albertel  573:       foreach my $option (@opt) {
                    574: 	  my $escopt=&HTML::Entities::encode($option,'\'"&<>');
1.152     onken     575:           if ($option eq $lastopt) {
1.158     onken     576:               if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.164     onken     577:                   && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
                    578:                   && $Apache::lonhomework::type ne 'exam') {
1.152     onken     579:                   $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
                    580:               } else {
                    581:                   $optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
                    582:               }
                    583:           } else {
1.158     onken     584:               if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.164     onken     585:                   && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
                    586:                   && $Apache::lonhomework::type ne 'exam') {
1.152     onken     587:                   $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
                    588:               } else {
                    589:                   $optionlist.="<option value='".$escopt."'>$option</option>\n";
                    590:               }
                    591:           }
1.28      albertel  592:       }
1.32      sakharuk  593:       if ($target ne 'tex') {
1.72      sakharuk  594: 	  if ($Apache::lonhomework::type ne 'exam') {
1.159     www       595: # we are on the web, this is not an exam, and the problem can be answered
                    596:               if ($checkboxopt) {
                    597: # generate checkboxes
                    598:                   my $fieldname=$Apache::inputtags::response['-1'].':'.$temp;
                    599:                   my $altopt=$opt[0];
                    600:                   if ($opt[0] eq $checkboxopt) {
                    601:                      $altopt=$opt[1];
                    602:                   }
                    603:                   my $defopt=$lastopt;
                    604:                   unless ($defopt) { $defopt=$altopt; }
                    605:                   my $escdefopt=&HTML::Entities::encode($defopt,'\'"&<>');
                    606:                   my $esccheckboxopt=&HTML::Entities::encode($checkboxopt,'\'"&<>');
                    607:                   my $escaltopt=&HTML::Entities::encode($altopt,'\'"&<>');
                    608: # checkboxopt is how the box is labelled
                    609: # altopt is the alternative option
                    610: # lastopt is what the user submitted before
                    611: # defopt is what the field is going to start out with: either previous choice or altopt
                    612: # fieldname is this input field's name after HWVAL_
                    613:                   $optionlist='<input type="hidden" name="HWVAL_'.$fieldname.'" value="'.$escdefopt.'" />'.
1.160     www       614:                   '<input type="checkbox" name="HWCHK_'.$fieldname.'" onclick="javascript:if (this.form.elements[\'HWCHK_'.
                    615:                   $fieldname.'\'].checked) { this.form.elements[\'HWVAL_'.$fieldname.'\'].value=\''.$esccheckboxopt.'\'; } else { this.form.elements[\'HWVAL_'.$fieldname.'\'].value=\''.$escaltopt.'\'; };setSubmittedPart(\''.$part.'\');"'.($defopt eq $checkboxopt?' checked="checked"':'')." />\n";
1.159     www       616:               } else {
                    617: # classic selection list
                    618: 	          $optionlist='<select onchange="javascript:setSubmittedPart(\''.
1.139     albertel  619: 		  $part.'\');" name="HWVAL_'.
1.101     albertel  620: 		  $Apache::inputtags::response['-1'].':'.$temp.'">'.
1.59      albertel  621: 		  $optionlist."</select>\n";
1.159     www       622:               }
1.101     albertel  623: 	  } else {
                    624: 	      $optionlist='<u>'.('&nbsp;'x10).'</u>';
1.72      sakharuk  625: 	  }
1.101     albertel  626: 	  if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
                    627: 	      if ($Apache::lonhomework::type ne 'exam') {
1.170     raeburn   628:                   if (@whichopt > 1) {  
                    629:                       $text='&#149;'.$text;
                    630:                   }
1.101     albertel  631: 	      }
1.95      albertel  632: 	  } else {
1.101     albertel  633: 	      if ($Apache::lonhomework::type ne 'exam') {
                    634: 		  $text=$optionlist.$text;
                    635: 	      }
1.59      albertel  636: 	  }
1.62      albertel  637: 	  $result.=$break.$text."\n";
1.49      sakharuk  638: 	  if ($Apache::lonhomework::type eq 'exam') {
1.101     albertel  639: 	      $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
1.49      sakharuk  640: 	  }
1.32      sakharuk  641: 	  $temp++;
                    642:       } else {
1.101     albertel  643: 	  my $texoptionlist='';
                    644: 	  if ($displayoptionintex &&
                    645: 	      $Apache::lonhomework::type ne 'exam') {
1.107     sakharuk  646: 	      $texoptionlist = &optionlist_correction($TeXlayout,@opt);
1.101     albertel  647: 	  }
                    648: 	  if ($text=~/<drawoptionlist\s*\/>/) {
1.136     foxr      649: 	      $text=~s|<drawoptionlist\s*\/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |g;
1.101     albertel  650: 	  }
                    651: 
                    652: 	  if ($text=~m/\\item /) {
1.50      sakharuk  653: 	      if ($Apache::lonhomework::type eq 'exam') {
1.101     albertel  654: 	          $text=~s/\\item/\\vskip 2 mm/;
1.152     onken     655: 	      } elsif ($env{'form.pdfFormFields'} ne 'yes') {
                    656:                   $result.= $texoptionlist.$text;
                    657:               }
                    658:           } else {
1.101     albertel  659: 	      if ($Apache::lonhomework::type eq 'exam') {
                    660: 		  $result.= $texoptionlist.'  '.$text;
1.152     onken     661: 	      } elsif ($env{'form.pdfFormFields'} ne 'yes') {
                    662: 		  if ($text=~/\S/) {
                    663:                       $result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;
                    664:                   } else {
                    665:                       $result.= $texoptionlist;
                    666:                   }
1.50      sakharuk  667: 	      }
1.32      sakharuk  668: 	  }
1.101     albertel  669: 	  if ($Apache::lonhomework::type eq 'exam') {
1.165     foxr      670: 	      $result.='\vskip -1 mm\noindent';
1.177   ! raeburn   671:               my ($numrows,$bubbles_per_row) = &getnumrows(scalar(@opt)); 
        !           672:               if ($numrows == 1) {  
        !           673:                   $result .= '\textbf{'.$internal_counter.'}. \vskip -3mm';
        !           674:               } else {
        !           675:                   my $linetext;
        !           676:                   for (my $i=0; $i<$numrows; $i++) {
        !           677:                       $linetext .= $internal_counter+$i.', ';
        !           678:                   }
        !           679:                   $linetext =~ s/,\s$//;
        !           680:                   $result .= '\small {\textbf{'.$linetext.'}} '.
        !           681:                              '\hskip 2 mm {\footnotesize '.
        !           682:                              &mt('(Bubble once in [_1] lines)',$numrows).
        !           683:                              '} \vskip 1 mm';
        !           684:               }
        !           685:               $result.= &bubbles(\@alphabet,\@opt,undef,undef,$numrows,
        !           686:                                  $bubbles_per_row,$internal_counter).
        !           687:                         ' \strut ';
        !           688: 	      $internal_counter += $numrows;
1.101     albertel  689: 	  }
1.158     onken     690:           if ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.164     onken     691:               && $Apache::inputtags::status[-1] eq 'CAN_ANSWER'
                    692:               && $Apache::lonhomework::type ne 'exam') {
1.158     onken     693:               $text =~ s/\\item//m;
1.152     onken     694:               $result .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut \\\\';
                    695:               $temp++;
                    696:           }
1.101     albertel  697: 	  $displayoptionintex=0;
1.62      albertel  698:       }
1.1       albertel  699:     }
1.62      albertel  700:   }
1.138     albertel  701: 
                    702:   if ($target eq 'web') {
1.173     raeburn   703:       my $data = [\@whichopt,'submissiongrading'];
                    704:       my $questiontype;
                    705:       if ($Apache::lonhomework::type eq 'randomizetry') {
                    706:           $questiontype = $Apache::lonhomework::type,
                    707:       }
                    708:       &Apache::response::setup_prior_tries_hash(\&Apache::rankresponse::format_prior_answer,$data,$questiontype);
1.138     albertel  709:   }
                    710: 
1.32      sakharuk  711:   if ($target ne 'tex') {
1.62      albertel  712:       return $result.$break;
                    713:   } else {
1.32      sakharuk  714:       return $result;
1.22      albertel  715:   }
1.50      sakharuk  716: }
                    717: 
                    718: 
                    719: sub optionlist_correction {
1.107     sakharuk  720:     my ($TeXlayout,@options) = @_;
1.150     bisitz    721:     my $texoptionlist='\\item [] '.&mt('Choices:').' ';
1.107     sakharuk  722:     if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
1.101     albertel  723:     if (scalar(@options) > 0) {
                    724: 	foreach my $option (@options) {
                    725: 	    $texoptionlist.='{\bf '.
1.135     albertel  726: 		&Apache::lonxml::latex_special_symbols($option).
1.107     sakharuk  727: 		'}';
                    728: 	    if ($TeXlayout eq 'vertical') {
                    729: 		$texoptionlist.=' \vskip 0 mm ',
                    730: 	    } else {
1.115     sakharuk  731: 		$texoptionlist.=', ';
1.107     sakharuk  732: 	    }
1.101     albertel  733: 	}
1.116     albertel  734: 	$texoptionlist=~s/, $//;
1.107     sakharuk  735: 	if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
1.80      sakharuk  736:     } else {
1.107     sakharuk  737: 	if ($TeXlayout ne 'vertical') {$texoptionlist='\\item [] \\vskip -5 mm';}
1.80      sakharuk  738:     }
1.50      sakharuk  739:     return $texoptionlist;
1.58      sakharuk  740: }
                    741: 
                    742: 
                    743: sub webbubbles {
1.90      albertel  744:     my ($ropt,$ralphabet,$temp,$lastopt)=@_;
1.58      sakharuk  745:     my @opt=@$ropt; 
                    746:     my @alphabet=@$ralphabet;
                    747:     my $result='';
1.90      albertel  748:     my $number_of_bubbles = $#opt + 1;
                    749:     $result.= '<table border="1"><tr>';
                    750:     for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
                    751: 	my $checked='';
                    752: 	if ($lastopt eq $opt[$ind]) {
                    753: 	    $checked=' checked="on" ';
1.58      sakharuk  754: 	}
1.90      albertel  755: 	$result.='<td><input type="radio" name="HWVAL_'.
                    756: 	    $Apache::inputtags::response['-1'].':'.$temp.
1.111     albertel  757: 	    '" value="'.$opt[$ind].'" '.$checked.' />';
                    758: 	if ($alphabet[$ind]) {
                    759: 	    $result.=$alphabet[$ind].': ';
                    760: 	}
                    761: 	$result.=$opt[$ind].'</td>';
1.90      albertel  762:     }
                    763:     $result.='</tr></table>';
                    764:     return $result;
1.50      sakharuk  765: }
                    766: 
                    767: 
                    768: sub bubbles {
1.177   ! raeburn   769:     my ($ralphabet,$ropt,$response,$max_width,$numrows,$bubbles_per_row,
        !           770:         $internal_counter) = @_;
1.119     albertel  771:     my @alphabet = @$ralphabet;
1.50      sakharuk  772:     my @opt = @$ropt;
1.51      sakharuk  773:     my ($result,$head,$line) =('','','');
1.50      sakharuk  774:     my $number_of_bubbles = $#opt + 1;
1.51      sakharuk  775:     my $current_length = 0;
1.100     sakharuk  776:     my $textwidth;
1.141     albertel  777:     if (defined($max_width)) {
1.140     foxr      778: 	$textwidth=$max_width;
1.141     albertel  779: 	&Apache::lonxml::debug("Max width passed in: $max_width");
                    780:     } elsif ($env{'form.textwidth'} ne '') {
1.125     albertel  781: 	$env{'form.textwidth'}=~/(\d+)/;
1.100     sakharuk  782: 	$textwidth=$1;
1.141     albertel  783: 	&Apache::lonxml::debug("Max width from form: $textwidth");
1.100     sakharuk  784:     } else {
1.125     albertel  785: 	$env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
1.102     sakharuk  786: 	$textwidth=$1.'.'.$2;
1.141     albertel  787: 	&Apache::lonxml::debug("Max width defaults? $textwidth");
1.100     sakharuk  788:     }
1.141     albertel  789:     &Apache::lonxml::debug("Final maxwidth: $textwidth");
1.51      sakharuk  790:     for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
1.177   ! raeburn   791:         my $item;
        !           792:         if ($numrows > 1) {
        !           793:             my $num = $internal_counter+int($ind/$bubbles_per_row);
        !           794:             my $idx = int($ind % $bubbles_per_row);
        !           795:             $item = $num.$alphabet[$idx];
        !           796:         } else {
        !           797:             $item = $alphabet[$ind];
        !           798:         }
1.99      sakharuk  799: 	my $leftmargin;
1.101     albertel  800: 	$opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
1.119     albertel  801: 	if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
1.99      sakharuk  802: 	if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
1.140     foxr      803: 
1.177   ! raeburn   804: 	$current_length += (length($opt[$ind])+length($item)+4)*2;
        !           805:         
1.99      sakharuk  806: 	if ($current_length<($textwidth-$leftmargin) and $ind!=$number_of_bubbles) {
1.177   ! raeburn   807:             
        !           808: 	    $line.='\hskip 4 mm {\small \textbf{'.$item.'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
1.51      sakharuk  809: 	    $head.='lr';
                    810: 	} else {
                    811: 	    $line=~s/\&\s*$//;
1.171     raeburn   812: 	    $result.='\vskip -1 mm\noindent\setlength{\tabcolsep}{2 mm}\renewcommand{\arraystretch}{1.25}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
1.177   ! raeburn   813: 	    $line = '\hskip 4 mm {\small \textbf{'.$item.'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
1.51      sakharuk  814: 	    $head ='lr';
1.177   ! raeburn   815: 	    $current_length = (length($opt[$ind])+length($item))*2;
1.51      sakharuk  816: 	}
                    817: 
1.50      sakharuk  818:     }
                    819:     return $result;
1.1       albertel  820: }
                    821: 
1.2       albertel  822: sub start_conceptgroup {
1.22      albertel  823:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    824:   $Apache::optionresponse::conceptgroup=1;
1.44      albertel  825:   %Apache::response::conceptgroup=();
1.22      albertel  826:   my $result;
                    827:   if ($target eq 'edit') {
                    828:     $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
1.30      matthew   829:     $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
                    830:         &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.22      albertel  831:   }
                    832:   if ($target eq 'modified') {
                    833:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
                    834:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    835:   }
                    836:   return $result;
1.2       albertel  837: }
                    838: 
                    839: sub end_conceptgroup {
1.22      albertel  840:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    841:   $Apache::optionresponse::conceptgroup=0;
                    842:   my $result='';
1.93      albertel  843:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    844:       $target eq 'tex' || $target eq 'analyze') {
1.22      albertel  845:     #if not there aren't any foils to display and thus no question
1.93      albertel  846:       &Apache::response::pick_foil_for_concept($target,
                    847: 					       ['value','text','location'],
                    848: 					       \%Apache::hint::option,
                    849: 					       $parstack,$safeeval);
1.34      albertel  850:   } elsif ($target eq 'edit') {
1.22      albertel  851:     $result=&Apache::edit::end_table();
                    852:   }
                    853:   return $result;
1.2       albertel  854: }
                    855: 
1.16      albertel  856: sub insert_conceptgroup {
1.22      albertel  857:   my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
                    858:   return $result;
1.16      albertel  859: }
                    860: 
1.1       albertel  861: sub start_foil {
1.22      albertel  862:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    863:   my $result='';
1.34      albertel  864:   if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
1.105     albertel  865:       &Apache::lonxml::startredirection;
                    866:       if ($target eq 'analyze') {
                    867: 	  &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
                    868:       }
1.25      albertel  869:   } elsif ($target eq 'edit') {
1.22      albertel  870:     $result=&Apache::edit::tag_start($target,$token,"Foil");
                    871:     my $level='-2';
                    872:     if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
                    873:     my @opt;
                    874:     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
                    875:     $result.=&Apache::edit::text_arg('Name:','name',$token);
1.48      albertel  876:     $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
                    877: 					       ['unused',(@opt)],$token,'15');
                    878:     my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    879: 					     $safeeval,'-3');
                    880:     if ($randomize ne 'no') {
                    881: 	$result.=&Apache::edit::select_arg('Location:','location',
                    882: 					   ['random','top','bottom'],$token);
                    883:     }
1.30      matthew   884:     $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.25      albertel  885:   } elsif ($target eq 'modified') {
1.48      albertel  886:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
                    887: 						 'value','name','location');
1.22      albertel  888:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.32      sakharuk  889:   } 
1.22      albertel  890:   return $result;
1.1       albertel  891: }
                    892: 
                    893: sub end_foil {
1.22      albertel  894:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    895:   my $text ='';
                    896:   my $result = '';
1.88      albertel  897:   if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.48      albertel  898:       $text=&Apache::lonxml::endredirection;
1.114     sakharuk  899:       if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
1.107     sakharuk  900:       if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$text;} 
1.32      sakharuk  901:   }
                    902:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' 
1.34      albertel  903:       || $target eq 'tex' || $target eq 'analyze') {
1.22      albertel  904:     my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
1.122     albertel  905:     if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
                    906: 	$text='\vskip 5mm $\triangleright$ '.$text;
                    907:     }
1.22      albertel  908:     if ($value ne 'unused') {
                    909:       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    910:       &Apache::lonxml::debug("Got a name of :$name:");
1.129     albertel  911:       if ($name eq "") {
1.151     bisitz    912: 	  &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
1.123     albertel  913: 	  $name=$Apache::lonxml::curdepth;
                    914:       }
1.176     www       915:       if ($name eq "0") {
                    916:           &Apache::lonxml::error(&mt('Foil name [_1] is not supported. Please choose another name.','<b><tt>'.$name.'</tt></b>'));
                    917:       }
1.22      albertel  918:       &Apache::lonxml::debug("Using a name of :$name:");
1.103     albertel  919:       if (defined($Apache::response::foilnames{$name})) {
1.151     bisitz    920: 	  &Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
1.103     albertel  921:       }
1.104     albertel  922:       $Apache::response::foilnames{$name}++;
1.103     albertel  923:       my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
1.39      albertel  924:       if ( $Apache::optionresponse::conceptgroup
                    925: 	   && !&Apache::response::showallfoils() ) {
1.22      albertel  926: 	push @{ $Apache::response::conceptgroup{'names'} }, $name;
                    927: 	$Apache::response::conceptgroup{"$name.value"} = $value;
1.122     albertel  928: 	$Apache::response::conceptgroup{"$name.text"} = $text;
1.48      albertel  929: 	$Apache::response::conceptgroup{"$name.location"} = $location;
1.22      albertel  930:       } else {
                    931: 	push @{ $Apache::response::foilgroup{'names'} }, $name;
1.48      albertel  932: 	$Apache::response::foilgroup{"$name.value"} = $value;
1.122     albertel  933: 	$Apache::response::foilgroup{"$name.text"} = $text;
1.48      albertel  934: 	$Apache::response::foilgroup{"$name.location"} = $location;
1.22      albertel  935:       }
                    936:     }
                    937:   }
                    938:   if ($target eq 'edit') {
                    939:     $result.= &Apache::edit::tag_end($target,$token,'');
                    940:   }
                    941:   return $result;
1.1       albertel  942: }
                    943: 
1.112     sakharuk  944: sub start_drawoptionlist {
                    945:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.144     albertel  946:     if ($target !~ /^(?:meta|answer|modified|edit)$/) {
1.117     albertel  947: 	return $token->[4];
                    948:     }
1.112     sakharuk  949: }
                    950: 
                    951: sub end_drawoptionlist {
                    952:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.144     albertel  953:     if ($target !~ /^(?:meta|answer|modified|edit)$/) {
1.117     albertel  954: 	return $token->[2];
                    955:     }
1.112     sakharuk  956: }
                    957: 
1.7       albertel  958: sub insert_foil {
1.144     albertel  959:     return '
1.15      albertel  960: <foil name="" value="unused">
1.14      albertel  961: <startouttext />
                    962: <endouttext />
1.7       albertel  963: </foil>';
                    964: }
1.144     albertel  965: 
                    966: sub insert_drawoptionlist {
                    967:     return '<drawoptionlist />';
                    968: }
1.177   ! raeburn   969: 
        !           970: sub getnumrows {
        !           971:     my ($numitems) = @_;
        !           972:     my $bubbles_per_row;
        !           973:     my $default_numbubbles = 10;
        !           974:     if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
        !           975:         ($env{'form.bubbles_per_row'} > 0)) {
        !           976:         $bubbles_per_row = $env{'form.bubbles_per_row'};
        !           977:     } else {
        !           978:         $bubbles_per_row = $default_numbubbles;
        !           979:     }
        !           980:     my $numrows = int ($numitems/$bubbles_per_row);
        !           981:     if (($numitems % $bubbles_per_row) != 0) {
        !           982:         $numrows ++;
        !           983:     }
        !           984:     return ($numrows,$bubbles_per_row);
        !           985: }
        !           986: 
1.1       albertel  987: 1;
                    988: __END__
                    989:  
1.156     jms       990: =head1 NAME
                    991: 
                    992: Apache::optionresponse.pm;
                    993: 
                    994: =head1 SYNOPSIS
                    995: 
                    996: Handles tags associated with showing a list of
                    997: options.
                    998: 
                    999: This is part of the LearningOnline Network with CAPA project
                   1000: described at http://www.lon-capa.org.
                   1001: 
                   1002: =head1 HANDLER SUBROUTINE
                   1003: 
                   1004: start_optionresponse()
                   1005: 
                   1006: =head1 OTHER SUBROUTINES
                   1007: 
                   1008: =over
                   1009: 
                   1010: =item end_optionresponse()
                   1011: 
                   1012: =item start_foilgroup()
                   1013: 
                   1014: =item end_foilgroup()
                   1015: 
                   1016: =item getfoilcounts()
                   1017: 
                   1018: =item displayanswers()
                   1019: 
                   1020: =item check_for_invalid()
                   1021: 
                   1022: =item displayfoils()
                   1023: 
                   1024: =item optionlist_correction()
                   1025: 
                   1026: =item webbubbles()
                   1027: 
                   1028: =item bubbles()
                   1029: 
                   1030: =item start_conceptgroup()
                   1031: 
                   1032: =item end_conceptgroup()
                   1033: 
                   1034: =item insert_conceptgroup()
                   1035: 
                   1036: =item start_foil()
                   1037: 
                   1038: =item end_foil()
                   1039: 
                   1040: =item start_drawoptionlist()
                   1041: 
                   1042: =item end_drawoptionlist()
                   1043: 
                   1044: =item insert_foil()
                   1045: 
                   1046: =item insert_drawoptionlist()
                   1047: 
                   1048: =back
                   1049: 
1.157     raeburn  1050: =cut

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