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Annotation of loncom/homework/hint.pm, revision 1.17

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 {
1.15      albertel    8:   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
1.1       albertel    9: }
                     10: 
1.2       albertel   11: 
1.15      albertel   12: @Apache::hint::which=();
1.1       albertel   13: sub start_hintgroup {
1.15      albertel   14:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     15:   my $skiptoend='0';
                     16:   my $result;
                     17:   
                     18:   if ($target eq 'web') {
                     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:");
                     25:     if ( $numtries < $hinttries ) {
                     26:       $skiptoend='1';
                     27:     } else {
                     28:       if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}
1.9       albertel   29:     }
1.15      albertel   30:   }
                     31:   if ($skiptoend) {
                     32:     &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
                     33:   }
                     34:   @Apache::hint::which=();
                     35:   return $result;
1.1       albertel   36: }
                     37: 
                     38: sub end_hintgroup {
1.15      albertel   39:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     40:   my $result;
                     41: 
                     42:   if ($target eq 'web') {
                     43:     my $id=$Apache::inputtags::part;
                     44:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     45:     if ( $numtries eq '') { $numtries = 0; }
                     46:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
                     47:     if ( $hinttries eq '') { $hinttries = 1; }
                     48:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
                     49:     if ( $numtries => $hinttries ) {
                     50:       if ($target eq 'web') {$result='</td></tr></table>';}
                     51:     }	
                     52:   }
                     53:   @Apache::hint::which='';
                     54:   return $result;
1.3       albertel   55: }
                     56: 
                     57: sub start_numericalhint {
1.16      albertel   58:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.15      albertel   59:   #do everything in end, so intervening <responseparams> work
1.16      albertel   60:   &Apache::response::start_hintresponse($parstack,$safeeval);
1.15      albertel   61:   return '';
1.3       albertel   62: }
                     63: 
                     64: sub end_numericalhint {
1.15      albertel   65:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     66:   my $result;
                     67:   if ($target eq 'web') {
                     68:     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
                     69:     my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
                     70:     my $response = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"};
                     71:     &Apache::lonxml::debug("hintgroup is using $response<br />\n");
                     72:     my $expression="&caparesponse_check_list('".$response."','".
                     73:       $$parstack[$#$parstack].
                     74: 	';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
                     75: 	';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
                     76: 	  "');";
                     77:     $result = &Apache::run::run($expression,$safeeval);
                     78:     &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
                     79:     my ($awards) = split /:/ , $result;
                     80:     my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
                     81:     if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
                     82:     $result='';
1.17    ! albertel   83:   } elsif ($target eq 'meta') {
        !            84:     $result=&Apache::response::meta_package_write('numericalhint');
1.15      albertel   85:   }
1.16      albertel   86:   &Apache::response::end_hintresponse();
1.15      albertel   87:   return $result;
1.1       albertel   88: }
                     89: 
1.2       albertel   90: # a part shows if it is on, if no specific parts are on, then default shows
1.1       albertel   91: sub start_hintpart {
1.15      albertel   92:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     93: 
                     94:   my $show ='0';
                     95: 
                     96:   if ($target eq 'web') {
                     97:     my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
                     98:     &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
                     99:     if ( $on eq 'default' && $#Apache::hint::which == '-1') {
                    100:       $show=1;
                    101:     } else {
                    102:       my $which;
                    103:       foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
                    104:     }
                    105:     if (!$show) {
                    106:       &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
1.1       albertel  107:     }
1.15      albertel  108:   } elsif ($target eq 'grade') {
                    109:     &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
                    110:   }
                    111:   return '';
1.1       albertel  112: }
                    113: 
                    114: sub end_hintpart {
1.11      albertel  115:   return '';
1.1       albertel  116: }
                    117: 
                    118: 1;
                    119: __END__