1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.95 2003/06/08 21:03:19 albertel Exp $
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: # 2/21 Guy
29: # 8/20 Gerd Kortemeyer
30:
31: package Apache::scripttag;
32:
33: use strict;
34: use Apache::lonnet;
35: use Apache::style;
36:
37: #Globals
38: # this used to pass around the standard callsub arguments to a tag func
39: # so xmlparse can reenter the inner_xmlparse loop.
40:
41: @Apache::scripttag::parser_env = ();
42: BEGIN {
43: &Apache::lonxml::register('Apache::scripttag',
44: ('script','scriptlib','parserlib','import',
45: 'window','display','storetc','physnet',
46: 'standalone','comment',
47: 'LONCAPA_INTERNAL_TURN_STYLE_ON',
48: 'LONCAPA_INTERNAL_LONHTTPD_PORT'));
49: }
50:
51: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
52: $Apache::lonxml::usestyle=1;
53: $Apache::lonxml::style_values='';
54: return ('','no');
55: }
56:
57: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
59: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
60: if (defined($end)) {
61: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
62: }
63: return ('','no');
64: }
65:
66: sub start_LONCAPA_INTERNAL_LONHTTPD_PORT {
67: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
68: if ($target eq 'web') {
69: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
70: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
71: return '<script type="text/javascript">var lonhttpdport=\''.
72: $lonhttpdPort.'\';</script>';
73: }
74: return ('','no');
75: }
76:
77: sub end_LONCAPA_INTERNAL_LONHTTPD_PORT {
78: return ('','no');
79: }
80:
81: sub start_script {
82: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
83: @Apache::scripttag::parser_env = @_;
84: my $result='';
85: my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
86: &Apache::lonxml::debug("found type of $type");
87: if ($type eq "loncapa/perl") {
88: my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
89: if ( $target eq "modified" ) {
90: $result=$token->[4].&Apache::edit::modifiedfield();
91: } elsif ( $target eq 'web' || $target eq 'tex' ||
92: $target eq 'grade' || $target eq 'answer' ||
93: $target eq 'analyze' ) {
94: if (!$Apache::lonxml::default_homework_loaded) {
95: &Apache::lonxml::default_homework_load($safeeval);
96: }
97: &Apache::run::run($bodytext,$safeeval);
98: if (($target eq 'answer') &&
99: ($ENV{'form.answer_output_mode'} ne 'tex') &&
100: ($Apache::lonhomework::viewgrades == 'F')) {
101: $Apache::lonxml::evaluate--;
102: $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"><pre>";
103: my $listing= &HTML::Entities::encode(&Apache::run::dump($target,$safeeval));
104:
105: $result.=$listing;
106: $result.= "</pre></body></html>\');newWindow.document.close();void(0);\">Script Vars</a><br />";
107: }
108: } elsif ($target eq "edit" ) {
109: #&Apache::run::run($bodytext,$safeeval);
110: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
111: $result=&Apache::edit::tag_start($target,$token,'Script');
112: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
113: }
114: } else {
115: if ($target ne "meta") {
116: $result = $token->[4];
117: my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
118: $result.=$bodytext;
119: }
120: }
121: return $result;
122: }
123:
124: sub end_script {
125: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
126: if ( $target eq "meta" ) { return ''; }
127: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
128: my $result='';
129: #other script blocks need to survive
130: if ($type ne "loncapa/perl") {
131: return $token->[2];
132: } elsif ($target eq 'edit' ) {
133: return &Apache::edit::end_table();
134: } elsif ($target eq 'answer') {
135: $Apache::lonxml::evaluate++;
136: }
137: return '';
138: }
139:
140: sub start_display {
141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
142:
143: my $result;
144: my $bodytext=&Apache::lonxml::get_all_text("/display",$parser);
145:
146: if ( $target eq "modified" ) {
147: $result=$token->[4].&Apache::edit::modifiedfield();
148: } elsif ( $target eq 'web' || $target eq 'tex' ||
149: $target eq 'grade' || $target eq 'answer' ||
150: $target eq 'analyze') {
151: if (!$Apache::lonxml::default_homework_loaded) {
152: &Apache::lonxml::default_homework_load($safeeval);
153: }
154: $result=&Apache::run::run($bodytext,$safeeval);
155: if ($target eq 'grade' || $target eq 'answer' ||
156: $target eq 'analyze') {
157: $result=''; # grade should produce no output
158: }
159: } elsif ($target eq "edit" ) {
160: #$result =
161: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
162: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
163: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
164: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
165: }
166: return $result;
167: }
168:
169: sub end_display {
170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
171: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
172: return '';
173: }
174:
175: sub start_scriptlib {
176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
177: my $bodytext;
178: my $result ='';
179: my $error='';
180:
181: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
182: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
183: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
184: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
185: $$parstack[$#$parstack]);
186: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
187: $bodytext);
188: my $script=&Apache::lonnet::getfile($location);
189: if ($script == -1) {
190: if ($target eq 'edit') {
191: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
192: } else {
193: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
194: return "";
195: }
196: }
197: &Apache::run::run($script,$safeeval);
198: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
199: }
200: if ($target eq "edit" ) {
201: $result=
202: &Apache::edit::tag_start($target,$token,'New Script Functions').
203: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
204: &Apache::edit::browse(undef,'textnode').
205: $error.'</td></tr>'.
206: &Apache::edit::end_table();
207: }
208: if ($target eq "modified" ) {
209: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
210: $result=$token->[4].&Apache::edit::modifiedfield($token);
211: &Apache::lonxml::debug($result);
212: }
213: return $result;
214: }
215:
216: sub end_scriptlib {
217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
218: my @result;
219: if ($target eq "edit" ) { $result[1]='no'; }
220: return @result;
221: }
222:
223: sub start_parserlib {
224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
225: my $bodytext;
226: my $result ="";
227: my $error='';
228: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
229: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
230: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
231: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
232: $$parstack[$#$parstack]);
233: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
234: $bodytext);
235: my $styletext=&Apache::lonnet::getfile($location);
236: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
237: if ($styletext == -1) {
238: if ($target eq 'edit') {
239: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
240: } else {
241: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
242: return "";
243: }
244: }
245: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
246: }
247: if ($target eq "edit" ) {
248: $result=
249: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
250: &Apache::edit::editline($token->[1],$bodytext,'',40).
251: $error.'</td></tr>'.
252: &Apache::edit::end_table();
253: }
254: if ($target eq "modified" ) {
255: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
256: $result=$token->[4].&Apache::edit::modifiedfield($token);
257: &Apache::lonxml::debug($result);
258: }
259: return $result;
260: }
261:
262: sub end_parserlib {
263: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
264: my @result;
265: if ($target eq "edit" ) { $result[1]='no'; }
266: return @result;
267: }
268:
269: sub start_window {
270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
271: my $result = '';
272: if ($target eq 'web') {
273: &Apache::lonxml::startredirection;
274: } elsif ($target eq 'tex') {
275: $result = '\unskip\footnote{';
276: }
277: return $result;
278: }
279:
280: sub end_window {
281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
282: my $result;
283: if ($target eq 'web') {
284: my $output=&Apache::lonxml::endredirection;
285: $output =~ s/[\n\r]/ /g;
286: $output=&HTML::Entities::encode($output,'<>&"\'');
287: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
288: if (!$linktext) { $linktext='<sup>*</sup>'; }
289: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
290: if (!$width) { $width='500'; }
291: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
292: if (!$height) { $height='200'; }
293: $result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=$width,height=$height,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"> $output </body></html>\');newWindow.document.close();void(0);\">$linktext</a>";
294: } elsif ($target eq 'tex') {
295: $result = '}';
296: } else {
297: $result = '';
298: }
299: return $result;
300: }
301:
302: sub start_import {
303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
304: my $bodytext=$$parser[$#$parser]->get_text("/import");
305: my $result ="";
306:
307: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
308:
309: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
310: $target eq 'tex' || $target eq 'analyze' ) {
311: # FIXME this probably needs to be smart about construction vs.
312: # non construction space.
313: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
314: my $file=&Apache::lonnet::getfile($location);
315: if ($file == -1) {
316: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
317: return "";
318: }
319:
320: my $dir=$location;
321: $dir=~s:/[^/]*$::;
322: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
323: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
324: if (!$id) { $id=$Apache::lonxml::curdepth; }
325: push(@Apache::inputtags::import,$id);
326: push(@Apache::inputtags::importlist,$id);
327:
328: &Apache::lonxml::newparser($parser,\$file,$dir);
329:
330: } elsif ($target eq "edit" ) {
331: $result.=&Apache::edit::tag_start($target,$token);
332: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
333: $result.=&Apache::edit::browse(undef,'textnode');
334: #FIXME this need to convert $bodytext to be a contruction space reference
335: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
336: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
337: } elsif ($target eq 'modified') {
338: $bodytext=$$parser[$#$parser]->get_text("/import");
339: $result=$token->[4].&Apache::edit::modifiedfield($token);
340: &Apache::lonxml::debug($result);
341: } elsif ($target eq 'meta') {
342: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
343: $result.='<import part="'.$Apache::inputtags::part;
344: if ($id) {
345: $result.='" id="'.$id;
346: }
347: $result.='">';
348: $result.=$bodytext;
349: $result.='</import>';
350: }
351: return $result;
352: }
353:
354: sub end_import {
355: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
356: pop(@Apache::inputtags::import);
357: my $result;
358: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
359: return $result;
360: }
361:
362: sub start_storetc {
363: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
364: my $result = '';
365: &Apache::lonxml::startredirection;
366: return $result;
367: }
368:
369: sub end_storetc {
370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
371: my $result;
372: my $output=&Apache::lonxml::endredirection;
373: $output =~ s/\"/\"\;/g;
374: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
375: return $result;
376: }
377:
378:
379: sub start_physnet {
380: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
381: my $bodytext = '/adm/includes/physnet.sty';
382: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
383: my $cbistyletext=&Apache::lonnet::getfile($location);
384:
385: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
386: $$parser['-1']->unget_token($token);
387: # if ( defined($$style{'physnet'}) ) {
388: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
389: # }
390: return "";
391: }
392:
393: sub end_physnet {
394: return '';
395: }
396:
397: sub start_standalone {
398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
399: my $result='';
400: if ($target eq 'web' ) {
401: if ( $ENV{'request.course.id'} ) {
402: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
403: } else {
404: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
405: }
406: }
407: return $result;
408: }
409:
410: sub end_standalone {
411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
412: my $result='';
413: if ($target eq 'web' ) {
414: if ( $ENV{'request.course.id'} ) {
415: } else {
416: $result='</td></tr></table>';
417: }
418: }
419: return $result;
420: }
421:
422: sub start_comment {
423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
424: my $result='';
425: if ($target eq 'edit') {
426: $result=&Apache::edit::tag_start($target,$token);
427: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
428: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
429: } elsif ( $target eq 'modified') {
430: $result=$token->[4].&Apache::edit::modifiedfield($token);
431: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
432: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
433: #normally throw away comments
434: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
435: }
436: return $result;
437: }
438:
439: sub end_comment {
440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
441: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
442: return '';
443: }
444:
445:
446: sub xmlparse {
447: my ($string) = @_;
448: # &Apache::lonxml::debug("Got $string");
449: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
450: @Apache::scripttag::parser_env;
451: my @parser;
452: &Apache::lonxml::newparser(\@parser,\$string);
453: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
454: $parstack,\@parser,
455: $safeeval,$style);
456: return $result;
457: }
458:
459: 1;
460: __END__
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