1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.100 2003/08/11 20:07:20 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_TURN_STYLE_OFF',
49: 'LONCAPA_INTERNAL_LONHTTPD_PORT'));
50: }
51:
52: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
53: $Apache::lonxml::usestyle=1;
54: $Apache::lonxml::style_values='';
55: return ('','no');
56: }
57:
58: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
60: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
61: if (defined($end)) {
62: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
63: }
64: return ('','no');
65: }
66:
67: sub start_LONCAPA_INTERNAL_TURN_STYLE_OFF {
68: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
69: $Apache::lonxml::usestyle=0;
70: my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
71: if (!$end) {
72: $Apache::lonxml::style_values=$$parstack[-1];
73: $Apache::lonxml::style_end_values=$$parstack[-1];
74: } else {
75: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
76: $Apache::lonxml::style_end_values='';
77: }
78: return ('','no');
79: }
80:
81: sub end_LONCAPA_INTERNAL_TURN_STYLE_OFF {
82: return ('','no');
83: }
84:
85: sub start_LONCAPA_INTERNAL_LONHTTPD_PORT {
86: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
87: if ($target eq 'web') {
88: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
89: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
90: return '<script type="text/javascript">var lonhttpdport=\''.
91: $lonhttpdPort.'\';</script>';
92: }
93: return ('','no');
94: }
95:
96: sub end_LONCAPA_INTERNAL_LONHTTPD_PORT {
97: return ('','no');
98: }
99:
100: sub start_script {
101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
102: @Apache::scripttag::parser_env = @_;
103: my $result='';
104: my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
105: &Apache::lonxml::debug("found type of $type");
106: if ($type eq "loncapa/perl") {
107: my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
108: if ( $target eq "modified" ) {
109: $result=$token->[4].&Apache::edit::modifiedfield();
110: } elsif ( $target eq 'web' || $target eq 'tex' ||
111: $target eq 'grade' || $target eq 'answer' ||
112: $target eq 'analyze' ) {
113: if (!$Apache::lonxml::default_homework_loaded) {
114: &Apache::lonxml::default_homework_load($safeeval);
115: }
116: &Apache::run::run($bodytext,$safeeval);
117: if (($target eq 'answer') &&
118: ($ENV{'form.answer_output_mode'} ne 'tex') &&
119: ($Apache::lonhomework::viewgrades == 'F')) {
120: $Apache::lonxml::evaluate--;
121: $result.="<script type=\"text/javascript\"> function LONCAPA_scriptvars_$Apache::lonxml::curdepth() {newWindow=open('','new_W','width=500,height=200,scrollbars=1');newWindow.document.open('text/html','replace');newWindow.document.writeln('<html><head><title>Script Vars</title></head><body bgcolor=\"#FFFFFF\"><pre>";
122: my $listing=&Apache::run::dump($target,$safeeval);
123: $listing=~s/\'/\\\'/g;
124: $listing=~s/\n/\\n/g;
125: $listing=~s/\r/\\r/g;
126: $result.=$listing;
127: $result.= "</pre></body></html>');newWindow.document.close();}</script><a href=\"javascript:LONCAPA_scriptvars_$Apache::lonxml::curdepth();void(0);\">Script Vars</a><br />";
128: }
129: } elsif ($target eq "edit" ) {
130: #&Apache::run::run($bodytext,$safeeval);
131: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
132: $result=&Apache::edit::tag_start($target,$token,'Script');
133: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
134: }
135: } else {
136: if ($target ne "meta") {
137: $result = $token->[4];
138: my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
139: $result.=$bodytext;
140: }
141: }
142: return $result;
143: }
144:
145: sub end_script {
146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
147: if ( $target eq "meta" ) { return ''; }
148: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
149: my $result='';
150: #other script blocks need to survive
151: if ($type ne "loncapa/perl") {
152: return $token->[2];
153: } elsif ($target eq 'edit' ) {
154: return &Apache::edit::end_table();
155: } elsif ($target eq 'answer') {
156: $Apache::lonxml::evaluate++;
157: }
158: return '';
159: }
160:
161: sub start_display {
162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
163:
164: my $result;
165: my $bodytext=&Apache::lonxml::get_all_text("/display",$parser);
166:
167: if ( $target eq "modified" ) {
168: $result=$token->[4].&Apache::edit::modifiedfield();
169: } elsif ( $target eq 'web' || $target eq 'tex' ||
170: $target eq 'grade' || $target eq 'answer' ||
171: $target eq 'analyze') {
172: if (!$Apache::lonxml::default_homework_loaded) {
173: &Apache::lonxml::default_homework_load($safeeval);
174: }
175: $result=&Apache::run::run($bodytext,$safeeval);
176: if ($target eq 'grade' || $target eq 'answer' ||
177: $target eq 'analyze') {
178: $result=''; # grade should produce no output
179: }
180: } elsif ($target eq "edit" ) {
181: #$result =
182: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
183: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
184: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
185: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
186: }
187: return $result;
188: }
189:
190: sub end_display {
191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
192: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
193: return '';
194: }
195:
196: sub start_scriptlib {
197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
198: my $bodytext;
199: my $result ='';
200: my $error='';
201:
202: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
203: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
204: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
205: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
206: $$parstack[$#$parstack]);
207: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
208: $bodytext);
209: my $script=&Apache::lonnet::getfile($location);
210: if ($script == -1) {
211: if ($target eq 'edit') {
212: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
213: } else {
214: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
215: return "";
216: }
217: }
218: &Apache::run::run($script,$safeeval);
219: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
220: }
221: if ($target eq "edit" ) {
222: $result=
223: &Apache::edit::tag_start($target,$token,'New Script Functions').
224: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
225: &Apache::edit::browse(undef,'textnode').
226: $error.'</td></tr>'.
227: &Apache::edit::end_table();
228: }
229: if ($target eq "modified" ) {
230: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
231: $result=$token->[4].&Apache::edit::modifiedfield($token);
232: &Apache::lonxml::debug($result);
233: }
234: return $result;
235: }
236:
237: sub end_scriptlib {
238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
239: my @result;
240: if ($target eq "edit" ) { $result[1]='no'; }
241: return @result;
242: }
243:
244: sub start_parserlib {
245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
246: my $bodytext;
247: my $result ="";
248: my $error='';
249: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
250: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
251: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
252: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
253: $$parstack[$#$parstack]);
254: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
255: $bodytext);
256: my $styletext=&Apache::lonnet::getfile($location);
257: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
258: if ($styletext == -1) {
259: if ($target eq 'edit') {
260: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
261: } else {
262: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
263: return "";
264: }
265: }
266: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
267: }
268: if ($target eq "edit" ) {
269: $result=
270: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
271: &Apache::edit::editline($token->[1],$bodytext,'',40).
272: $error.'</td></tr>'.
273: &Apache::edit::end_table();
274: }
275: if ($target eq "modified" ) {
276: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
277: $result=$token->[4].&Apache::edit::modifiedfield($token);
278: &Apache::lonxml::debug($result);
279: }
280: return $result;
281: }
282:
283: sub end_parserlib {
284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
285: my @result;
286: if ($target eq "edit" ) { $result[1]='no'; }
287: return @result;
288: }
289:
290: sub start_window {
291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
292: my $result = '';
293: if ($target eq 'web') {
294: &Apache::lonxml::startredirection;
295: } elsif ($target eq 'tex') {
296: $result = '\unskip\footnote{';
297: }
298: return $result;
299: }
300:
301: sub end_window {
302: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
303: my $result;
304: if ($target eq 'web') {
305: my $output=&Apache::lonxml::endredirection;
306: $output =~ s/[\n\r]/ /g;
307: # $output = &HTML::Entities::encode($output,'<>&"\'');
308: $output =~ s/\'/\\\'/g;
309: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
310: if (!$linktext) { $linktext='<sup>*</sup>'; }
311: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
312: if (!$width) { $width='500'; }
313: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
314: if (!$height) { $height='200'; }
315: $result = "<script type=\"text/javascript\"> function LONCAPA_newwindow_$Apache::lonxml::curdepth() {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\"> $output </body></html>');newWindow.document.close();}</script><a href=\"javascript:LONCAPA_newwindow_$Apache::lonxml::curdepth();void(0);\">$linktext</a>";
316: } elsif ($target eq 'tex') {
317: $result = '}';
318: } else {
319: $result = '';
320: }
321: return $result;
322: }
323:
324: sub start_import {
325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
326: my $bodytext=$$parser[$#$parser]->get_text("/import");
327: my $result ="";
328:
329: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
330:
331: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
332: $target eq 'tex' || $target eq 'analyze' ) {
333: # FIXME this probably needs to be smart about construction vs.
334: # non construction space.
335: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
336: my $file=&Apache::lonnet::getfile($location);
337: if ($file == -1) {
338: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
339: return "";
340: }
341:
342: my $dir=$location;
343: $dir=~s:/[^/]*$::;
344: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
345: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
346: if (!$id) { $id=$Apache::lonxml::curdepth; }
347: push(@Apache::inputtags::import,$id);
348: push(@Apache::inputtags::importlist,$id);
349:
350: &Apache::lonxml::newparser($parser,\$file,$dir);
351:
352: } elsif ($target eq "edit" ) {
353: $result.=&Apache::edit::tag_start($target,$token);
354: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
355: $result.=&Apache::edit::browse(undef,'textnode');
356: #FIXME this need to convert $bodytext to be a contruction space reference
357: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
358: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
359: } elsif ($target eq 'modified') {
360: $bodytext=$$parser[$#$parser]->get_text("/import");
361: $result=$token->[4].&Apache::edit::modifiedfield($token);
362: &Apache::lonxml::debug($result);
363: } elsif ($target eq 'meta') {
364: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
365: $result.='<import part="'.$Apache::inputtags::part;
366: if ($id) {
367: $result.='" id="'.$id;
368: }
369: $result.='">';
370: $result.=$bodytext;
371: $result.='</import>';
372: }
373: return $result;
374: }
375:
376: sub end_import {
377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
378: pop(@Apache::inputtags::import);
379: my $result;
380: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
381: return $result;
382: }
383:
384: sub start_storetc {
385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
386: my $result = '';
387: &Apache::lonxml::startredirection;
388: return $result;
389: }
390:
391: sub end_storetc {
392: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
393: my $result;
394: my $output=&Apache::lonxml::endredirection;
395: $output =~ s/\"/\"\;/g;
396: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
397: return $result;
398: }
399:
400:
401: sub start_physnet {
402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
403: my $bodytext = '/adm/includes/physnet.sty';
404: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
405: my $cbistyletext=&Apache::lonnet::getfile($location);
406:
407: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
408: $$parser['-1']->unget_token($token);
409: # if ( defined($$style{'physnet'}) ) {
410: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
411: # }
412: return "";
413: }
414:
415: sub end_physnet {
416: return '';
417: }
418:
419: sub start_standalone {
420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
421: my $result='';
422: if ($target eq 'web' ) {
423: if ( $ENV{'request.course.id'} ) {
424: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
425: } else {
426: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
427: }
428: }
429: return $result;
430: }
431:
432: sub end_standalone {
433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
434: my $result='';
435: if ($target eq 'web' ) {
436: if ( $ENV{'request.course.id'} ) {
437: } else {
438: $result='</td></tr></table>';
439: }
440: }
441: return $result;
442: }
443:
444: sub start_comment {
445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
446: my $result='';
447: if ($target eq 'edit') {
448: $result=&Apache::edit::tag_start($target,$token);
449: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
450: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
451: } elsif ( $target eq 'modified') {
452: $result=$token->[4].&Apache::edit::modifiedfield($token);
453: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
454: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
455: #normally throw away comments
456: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
457: }
458: return $result;
459: }
460:
461: sub end_comment {
462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
463: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
464: return '';
465: }
466:
467:
468: sub xmlparse {
469: my ($string) = @_;
470: # &Apache::lonxml::debug("Got $string");
471: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
472: @Apache::scripttag::parser_env;
473: my @parser;
474: &Apache::lonxml::newparser(\@parser,\$string);
475: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
476: $parstack,\@parser,
477: $safeeval,$style);
478: return $result;
479: }
480:
481: 1;
482: __END__
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