1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: # 2/21 Guy
4:
5: package Apache::scripttag;
6:
7: use strict;
8: use Apache::lonnet;
9:
10: sub BEGIN {
11: &Apache::lonxml::register('Apache::scripttag',('script','scriptlib',
12: 'parserlib','import',
13: 'window','display'));
14: }
15:
16: sub start_script {
17: my ($target,$token,$parstack,$parser,$safeeval)=@_;
18: my $args ='';
19: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
20: my $type = &Apache::run::run("{$args;".'return $type}',$safeeval);
21: my $result='';
22: #&Apache::lonxml::debug("found type of $type");
23: if ($type eq "loncapa/perl") {
24: my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
25:
26: if ( $target eq "modified" ) {
27: } elsif ( $target eq "web" || $target eq "grade" ) {
28: &Apache::run::run($bodytext,$safeeval);
29: } elsif ($target eq "edit" ) {
30: &Apache::run::run($bodytext,$safeeval);
31: $result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
32: $result.=&editfield($token->[1],$bodytext);
33: }
34: } else {
35: if ($target ne "meta") { $result = $token->[4]; }
36: }
37: return $result;
38: }
39:
40: sub end_script {
41: my ($target,$token,$parstack,$parser,$safeeval)=@_;
42: if ( $target eq "meta" ) { return ''; }
43: my $args ='';
44: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
45: my $type = &Apache::run::run("{$args;".'return $type}',$safeeval);
46: my $result='';
47: #other script blocks need to survive
48: if ($type ne "loncapa/perl") { return $token->[2]; }
49: return '';
50: }
51:
52: sub start_display {
53: my ($target,$token,$parstack,$parser,$safeeval)=@_;
54: my $args ='';
55: if ( $#$parstack > -1 ) {
56: $args=$$parstack[$#$parstack];
57: }
58: my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
59:
60: if ( $target eq "modified" ) {
61: }
62: my $result=&Apache::run::run($bodytext,$safeeval);
63: if ($target eq 'grade' ) {
64: # grade should produce no output
65: $result='';
66: }
67: if ($target eq "edit" ) {
68: $result =
69: "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
70: $result.=&editfield($token->[1],$bodytext);
71: }
72: return $result;
73: }
74:
75: sub end_display {
76: }
77:
78: sub start_scriptlib {
79: my ($target,$token,$parstack,$parser,$safeeval)=@_;
80: my $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
81: my $result ="";
82:
83: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
84: $$parstack[$#$parstack]);
85: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
86: $bodytext);
87: my $script=&Apache::lonnet::getfile($location);
88: if ($script == -1) {
89: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
90: return "";
91: }
92: &Apache::run::run($script,$safeeval);
93: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
94:
95: if ($target eq "edit" ) {
96: $result.=&editfield($token->[1],$bodytext);
97: }
98: return $result;
99: }
100:
101: sub end_scriptlib {}
102:
103: sub start_parserlib {
104: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
105: my $bodytext=$$parser[$#$parser]->get_text("/parserlib");
106: my $result ="";
107:
108: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
109: $$parstack[$#$parstack]);
110: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
111: $bodytext);
112: my $styletext=&Apache::lonnet::getfile($location);
113: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
114: if ($styletext == -1) {
115: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
116: return "";
117: }
118: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
119:
120: if ($target eq "edit" ) {
121: $result=&editfield($token->[1],$bodytext);
122: }
123: return $result;
124: }
125:
126: sub end_parserlib {
127: }
128:
129: sub start_window {
130: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
131: my $result = '';
132: if ($target eq 'web') {
133: &Apache::lonxml::startredirection;
134: } elsif ($target eq 'tex') {
135: $result = '\footnote{';
136: }
137: return $result;
138: }
139:
140: sub end_window {
141: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
142: my $result;
143: if ($target eq 'web') {
144: my $output=&Apache::lonxml::endredirection;
145: $output =~ s/\"/\"\;/g;
146: $result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
147: } elsif ($target eq 'tex') {
148: $result = '}';
149: } else {
150: $result = '';
151: }
152: return $result;
153: }
154:
155: sub start_import {
156: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
157: my $bodytext=$$parser[$#$parser]->get_text("/import");
158: my $result ="";
159:
160: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
161: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
162: my $file=&Apache::lonnet::getfile($location);
163: if ($file == -1) {
164: &Apache::lonxml::error("<b> Unable to find <i>$bodytext $location</i> for import</b>");
165: return "";
166: }
167:
168: my $dir=$location;
169: $dir=~s:/[^/]*$::;
170: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
171: &Apache::lonxml::newparser($parser,\$file,$dir);
172:
173: if ($target eq "edit" ) {
174: $result.=&editfield($token->[1],$bodytext);
175: $result.="Click<a href=\"/res/$bodytext\">here</a> to edit<br />"
176: }
177: return '';
178: }
179:
180: sub end_import {
181: }
182:
183: sub start_meta {
184: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
185: my $result = '';
186: if ($target ne 'meta') {
187: $result = &Apache::lonxml::get_all_text("/meta",$$parser[$#$parser]);
188: $result = '';
189: return $result;
190: } else {
191: return $result;
192: }
193: }
194:
195: sub end_meta {
196: }
197:
198: sub editfield {
199: my ($tag,$data)=@_;
200:
201: my $count=0;
202: my $maxlength=-1;
203: map { $count++;
204: if (length($_) > $maxlength) { $maxlength = length ($_); }
205: } split ("\n", $data);
206:
207: return "<br />\n<$tag><br />\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br />\n</$tag><br />\n";
208: }
209:
210: sub getfilenothere {
211: my ($filename) = @_;
212: my $a="";
213:
214: $filename=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
215: $filename="/home/httpd/html/res".$filename;
216: if (! -e $filename ) {
217: &Apache::lonnet::subscribe($filename);
218: &Apache::lonnet::repcopy($filename);
219: }
220: if (! -e $filename ) { return -1; };
221: my $fh=Apache::File->new($filename);
222: while (<$fh>) {
223: $a .=$_;
224: }
225: return $a
226: }
227:
228: 1;
229: __END__
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