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Annotation of loncom/homework/hint.pm, revision 1.8

1.1       albertel    1: package Apache::hinttags; 
                      2: 
                      3: use strict;
                      4: use Apache::lonnet;
1.6       albertel    5: use capa;
1.1       albertel    6: 
                      7: sub BEGIN {
1.3       albertel    8:   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
1.1       albertel    9: }
                     10: 
1.2       albertel   11: 
1.3       albertel   12: @Apache::hint::which=();
1.1       albertel   13: sub start_hintgroup {
1.2       albertel   14:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3       albertel   15:   my $skiptoend='1';
                     16:   my $result;
                     17:   
                     18:   if ($target ne 'meta' || $target ne 'grade') {
                     19:     my $id=$Apache::inputtags::part;
                     20:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     21:     if ( $numtries eq '') { $numtries = 0; }
                     22:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
                     23:     if ( $hinttries eq '') { $hinttries = 1; }
                     24:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
1.4       albertel   25:     if ( $numtries >= $hinttries ) {
1.3       albertel   26:       $skiptoend='0'; 
                     27:       if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}
                     28:     }	
                     29:   }
1.7       albertel   30:   if ($skiptoend && $target ne 'meta') {
1.2       albertel   31:     &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
                     32:   }
1.3       albertel   33:   @Apache::hint::which=();
                     34:   return $result;
1.1       albertel   35: }
                     36: 
                     37: sub end_hintgroup {
1.3       albertel   38:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
                     39:   my $result;
                     40: 
                     41:   if ($target ne 'meta' || $target ne 'grade') {
                     42:     my $id=$Apache::inputtags::part;
                     43:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     44:     if ( $numtries eq '') { $numtries = 0; }
                     45:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
                     46:     if ( $hinttries eq '') { $hinttries = 1; }
                     47:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
1.4       albertel   48:     if ( $numtries >= $hinttries ) {
1.3       albertel   49:       if ($target eq 'web') {$result='</td></tr></table>';}
                     50:     }	
                     51:   }
                     52:   @Apache::hint::which='';
                     53:   return $result;
                     54: }
                     55: 
                     56: sub start_numericalhint {
                     57:   #do everything in end, so intervening <responseparams> work
                     58: }
                     59: 
                     60: sub end_numericalhint {
                     61:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
                     62:   my $result;
                     63:   if ($target ne 'meta' && $target ne 'grade') {
                     64:     my $args ='';
1.6       albertel   65:     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1.3       albertel   66:     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
                     67:     my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
1.4       albertel   68:     my $response = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"};
1.8     ! albertel   69:     &Apache::lonxml::debug("hintgroup is using $response<br />\n");
1.3       albertel   70:     my $expression="&caparesponse_check_list('".$response."','".
                     71:       $$parstack[$#$parstack].
                     72: 	';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
                     73: 	';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
                     74: 	  "');";
                     75:     $result = &Apache::run::run($expression,$safeeval);
1.6       albertel   76:     &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
1.3       albertel   77:     my ($awards) = split /:/ , $result;
                     78:     my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
                     79:     if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
                     80:     $result='';
                     81:   }
                     82:   return $result;
1.1       albertel   83: }
                     84: 
1.2       albertel   85: # a part shows if it is on, if no specific parts are on, then default shows
1.1       albertel   86: sub start_hintpart {
                     87:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
                     88: 
                     89:   my $show ='0';
1.4       albertel   90: 
1.1       albertel   91:   if ($target ne 'meta' && $target ne 'grade') {
                     92:     my $args ='';
                     93:     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
                     94:     my $on = &Apache::run::run("{$args;".'return $on}',$safeeval);
1.3       albertel   95:     if ( $on eq 'default' && $#Apache::hint::which == '-1') {
1.1       albertel   96:     } else {
1.3       albertel   97:       my $which;
1.4       albertel   98:       foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
1.1       albertel   99:     }
                    100:     if (!$show) {
1.5       albertel  101:       &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
1.1       albertel  102:     }
                    103:   } else {
1.5       albertel  104:     &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
1.1       albertel  105:   }
                    106:   return '';
                    107: }
                    108: 
                    109: sub end_hintpart {
                    110: }
                    111: 
                    112: 1;
                    113: __END__