1: package Apache::hinttags;
2:
3: use strict;
4: use Apache::lonnet;
5: use capa;
6:
7: sub BEGIN {
8: &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
9: }
10:
11:
12: @Apache::hint::which=();
13: sub start_hintgroup {
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') {$result='<table bgcolor="#dddddd"><tr><td>';}
29: }
30: }
31: if ($skiptoend) {
32: &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
33: }
34: @Apache::hint::which=();
35: return $result;
36: }
37:
38: sub end_hintgroup {
39: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
40: my $result;
41:
42: if ($target eq 'web') {
43: my $id=$Apache::inputtags::part;
44: my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
45: if ( $numtries eq '') { $numtries = 0; }
46: my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
47: if ( $hinttries eq '') { $hinttries = 1; }
48: &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
49: if ( $numtries => $hinttries ) {
50: if ($target eq 'web') {$result='</td></tr></table>';}
51: }
52: }
53: @Apache::hint::which='';
54: return $result;
55: }
56:
57: sub start_numericalhint {
58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
59: #do everything in end, so intervening <responseparams> work
60: &Apache::response::start_hintresponse($parstack,$safeeval);
61: return '';
62: }
63:
64: sub end_numericalhint {
65: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
66: my $result;
67: if ($target eq 'web') {
68: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
69: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
70: &Apache::response::setup_params('numericalhint');
71: my $partid=$Apache::inputtags::part;
72: my $id=$Apache::inputtags::response['-1'];
73: #id submissions occured under
74: my $submitid=$Apache::inputtags::response['-2'];
75: my $response = $Apache::lonhomework::history{
76: "resource.$partid.$submitid.submission"};
77: &Apache::lonxml::debug("hintgroup is using $response<br />\n");
78: #build safe space expression
79: my $expression="&caparesponse_check_list('".$response."','".
80: $$parstack[$#$parstack];
81: #need to get all possible parms
82: foreach my $key (keys(%Apache::inputtags::params)) {
83: $expression.= ';my $'. #'
84: $key.'="'.$Apache::inputtags::params{$key}.'"';
85: }
86: $expression.="');";
87: $result = &Apache::run::run($expression,$safeeval);
88: &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
89: my ($awards) = split /:/ , $result;
90: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
91: if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
92: $result='';
93: } elsif ($target eq 'meta') {
94: $result=&Apache::response::meta_package_write('numericalhint');
95: }
96: &Apache::response::end_hintresponse();
97: return $result;
98: }
99:
100: # a part shows if it is on, if no specific parts are on, then default shows
101: sub start_hintpart {
102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
103:
104: my $show ='0';
105:
106: if ($target eq 'web') {
107: my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
108: &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
109: if ( $on eq 'default' && $#Apache::hint::which == '-1') {
110: $show=1;
111: } else {
112: my $which;
113: foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
114: }
115: if (!$show) {
116: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
117: }
118: } elsif ($target eq 'grade') {
119: &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
120: }
121: return '';
122: }
123:
124: sub end_hintpart {
125: return '';
126: }
127:
128: 1;
129: __END__
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