Annotation of loncom/homework/hint.pm, revision 1.26

1.21      albertel    1: # The LearningOnline Network with CAPA 
                      2: # implements the tags that control the hints
                      3: #
1.26    ! albertel    4: # $Id: hint.pm,v 1.25 2002/01/24 04:18:54 harris41 Exp $
1.21      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: #
                     28: 
1.1       albertel   29: package Apache::hinttags; 
                     30: 
                     31: use strict;
                     32: use Apache::lonnet;
1.6       albertel   33: use capa;
1.1       albertel   34: 
1.25      harris41   35: BEGIN {
1.15      albertel   36:   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
1.1       albertel   37: }
                     38: 
1.2       albertel   39: 
1.15      albertel   40: @Apache::hint::which=();
1.1       albertel   41: sub start_hintgroup {
1.15      albertel   42:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     43:   my $skiptoend='0';
                     44:   my $result;
1.20      albertel   45: 
1.15      albertel   46:   if ($target eq 'web') {
                     47:     my $id=$Apache::inputtags::part;
                     48:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     49:     if ( $numtries eq '') { $numtries = 0; }
                     50:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
                     51:     if ( $hinttries eq '') { $hinttries = 1; }
                     52:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
                     53:     if ( $numtries < $hinttries ) {
                     54:       $skiptoend='1';
                     55:     } else {
                     56:       if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}
1.9       albertel   57:     }
1.20      albertel   58:     if ($skiptoend) {
                     59:       &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
                     60:     }
1.24      sakharuk   61:   } elsif ($target eq 'tex') {
                     62:     $result .= '\noindent{\it Hint: }'; 
1.15      albertel   63:   }
                     64:   @Apache::hint::which=();
                     65:   return $result;
1.1       albertel   66: }
                     67: 
                     68: sub end_hintgroup {
1.15      albertel   69:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     70:   my $result;
1.20      albertel   71: 
1.15      albertel   72:   if ($target eq 'web') {
                     73:     my $id=$Apache::inputtags::part;
                     74:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     75:     if ( $numtries eq '') { $numtries = 0; }
                     76:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
                     77:     if ( $hinttries eq '') { $hinttries = 1; }
                     78:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
1.19      albertel   79:     if ( $numtries >= $hinttries ) {
                     80:       $result='</td></tr></table>';
                     81:     }
1.20      albertel   82:   } elsif ($target eq 'edit') {
                     83:     $result.=&Apache::edit::end_table();
1.15      albertel   84:   }
1.19      albertel   85:   @Apache::hint::which=();
1.15      albertel   86:   return $result;
1.3       albertel   87: }
                     88: 
                     89: sub start_numericalhint {
1.16      albertel   90:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.15      albertel   91:   #do everything in end, so intervening <responseparams> work
1.16      albertel   92:   &Apache::response::start_hintresponse($parstack,$safeeval);
1.20      albertel   93:   my $result;
                     94:   if ($target eq 'edit') {
                     95:     $result.=&Apache::edit::tag_start($target,$token);
                     96:     $result.=&Apache::edit::text_arg('Name:','name',$token);
                     97:     $result.=&Apache::edit::text_arg('Answer:','answer',$token);
                     98:     $result.=&Apache::edit::text_arg('Unit:','unit',$token,5);
                     99:     $result.=&Apache::edit::text_arg('Format:','format',$token,4);
1.26    ! albertel  100:     $result.=&Apache::edit::end_row();
        !           101:     $result.=&Apache::edit::start_spanning_row();
1.20      albertel  102:   } elsif ($target eq 'modified') {
                    103:     my $constructtag=
                    104:       &Apache::edit::get_new_args($token,$parstack,$safeeval,
                    105: 				  'name','answer','unit', 'format');
                    106:     if ($constructtag) {
                    107:       $result  = &Apache::edit::rebuild_tag($token);
                    108:       $result .= &Apache::edit::handle_insert();
                    109:     }
                    110:   }
                    111:   return $result;
1.3       albertel  112: }
                    113: 
                    114: sub end_numericalhint {
1.15      albertel  115:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    116:   my $result;
                    117:   if ($target eq 'web') {
                    118:     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
                    119:     my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
1.18      albertel  120:     &Apache::response::setup_params('numericalhint');
                    121:     my $partid=$Apache::inputtags::part;
                    122:     my $id=$Apache::inputtags::response['-1'];
                    123:     #id submissions occured under
                    124:     my $submitid=$Apache::inputtags::response['-2'];
                    125:     my $response = $Apache::lonhomework::history{
                    126: 			    "resource.$partid.$submitid.submission"};
1.15      albertel  127:     &Apache::lonxml::debug("hintgroup is using $response<br />\n");
1.18      albertel  128:     #build safe space expression
1.15      albertel  129:     my $expression="&caparesponse_check_list('".$response."','".
1.18      albertel  130:       $$parstack[$#$parstack];
                    131:     #need to get all possible parms
                    132:     foreach my $key (keys(%Apache::inputtags::params)) {
                    133:       $expression.= ';my $'. #'
                    134: 	$key.'="'.$Apache::inputtags::params{$key}.'"';
                    135:     }
                    136:     $expression.="');";
1.15      albertel  137:     $result = &Apache::run::run($expression,$safeeval);
                    138:     &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
                    139:     my ($awards) = split /:/ , $result;
                    140:     my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
                    141:     if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
                    142:     $result='';
1.17      albertel  143:   } elsif ($target eq 'meta') {
                    144:     $result=&Apache::response::meta_package_write('numericalhint');
1.20      albertel  145:   } elsif ($target eq 'edit') {
                    146:     $result.='</td></tr>'.&Apache::edit::end_table;
1.15      albertel  147:   }
1.16      albertel  148:   &Apache::response::end_hintresponse();
1.15      albertel  149:   return $result;
1.1       albertel  150: }
                    151: 
1.2       albertel  152: # a part shows if it is on, if no specific parts are on, then default shows
1.1       albertel  153: sub start_hintpart {
1.15      albertel  154:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    155: 
                    156:   my $show ='0';
1.20      albertel  157:   my $result = '';
1.15      albertel  158:   if ($target eq 'web') {
                    159:     my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
                    160:     &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
                    161:     if ( $on eq 'default' && $#Apache::hint::which == '-1') {
                    162:       $show=1;
                    163:     } else {
                    164:       my $which;
                    165:       foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
                    166:     }
                    167:     if (!$show) {
                    168:       &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
1.1       albertel  169:     }
1.15      albertel  170:   } elsif ($target eq 'grade') {
                    171:     &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
1.20      albertel  172:   } elsif ($target eq 'edit') {
1.26    ! albertel  173:     $result.= &Apache::edit::tag_start($target,$token);
        !           174:     $result.= &Apache::edit::text_arg('On:','on',$token);
        !           175:     $result.= &Apache::edit::end_row();
        !           176:     $result.= &Apache::edit::start_spanning_row();
1.20      albertel  177:   } elsif ($target eq 'modified') {
                    178:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
                    179: 						 'on');
                    180:     if ($constructtag) {
                    181:       $result = &Apache::edit::rebuild_tag($token);
                    182:       $result.=&Apache::edit::handle_insert();
                    183:     }
1.15      albertel  184:   }
1.20      albertel  185:   return $result;
1.1       albertel  186: }
                    187: 
                    188: sub end_hintpart {
1.20      albertel  189:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    190:   my $result;
                    191:   if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
                    192:   return $result;
1.1       albertel  193: }
                    194: 
                    195: 1;
                    196: __END__

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