1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.101 2003/10/03 17:15:01 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: $Apache::lonxml::post_evaluate=0;
181: } elsif ($target eq "edit" ) {
182: #$result =
183: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
184: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
185: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
186: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
187: }
188: return $result;
189: }
190:
191: sub end_display {
192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
193: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
194: return '';
195: }
196:
197: sub start_scriptlib {
198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
199: my $bodytext;
200: my $result ='';
201: my $error='';
202:
203: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
204: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
205: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
206: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
207: $$parstack[$#$parstack]);
208: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
209: $bodytext);
210: my $script=&Apache::lonnet::getfile($location);
211: if ($script == -1) {
212: if ($target eq 'edit') {
213: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
214: } else {
215: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
216: return "";
217: }
218: }
219: &Apache::run::run($script,$safeeval);
220: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
221: }
222: if ($target eq "edit" ) {
223: $result=
224: &Apache::edit::tag_start($target,$token,'New Script Functions').
225: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
226: &Apache::edit::browse(undef,'textnode').
227: $error.'</td></tr>'.
228: &Apache::edit::end_table();
229: }
230: if ($target eq "modified" ) {
231: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
232: $result=$token->[4].&Apache::edit::modifiedfield($token);
233: &Apache::lonxml::debug($result);
234: }
235: return $result;
236: }
237:
238: sub end_scriptlib {
239: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
240: my @result;
241: if ($target eq "edit" ) { $result[1]='no'; }
242: return @result;
243: }
244:
245: sub start_parserlib {
246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
247: my $bodytext;
248: my $result ="";
249: my $error='';
250: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
251: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
252: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
253: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
254: $$parstack[$#$parstack]);
255: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
256: $bodytext);
257: my $styletext=&Apache::lonnet::getfile($location);
258: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
259: if ($styletext == -1) {
260: if ($target eq 'edit') {
261: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
262: } else {
263: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
264: return "";
265: }
266: }
267: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
268: }
269: if ($target eq "edit" ) {
270: $result=
271: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
272: &Apache::edit::editline($token->[1],$bodytext,'',40).
273: $error.'</td></tr>'.
274: &Apache::edit::end_table();
275: }
276: if ($target eq "modified" ) {
277: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
278: $result=$token->[4].&Apache::edit::modifiedfield($token);
279: &Apache::lonxml::debug($result);
280: }
281: return $result;
282: }
283:
284: sub end_parserlib {
285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
286: my @result;
287: if ($target eq "edit" ) { $result[1]='no'; }
288: return @result;
289: }
290:
291: sub start_window {
292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
293: my $result = '';
294: if ($target eq 'web') {
295: &Apache::lonxml::startredirection;
296: } elsif ($target eq 'tex') {
297: $result = '\unskip\footnote{';
298: }
299: return $result;
300: }
301:
302: sub end_window {
303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
304: my $result;
305: if ($target eq 'web') {
306: my $output=&Apache::lonxml::endredirection;
307: $output =~ s/[\n\r]/ /g;
308: # $output = &HTML::Entities::encode($output,'<>&"\'');
309: $output =~ s/\'/\\\'/g;
310: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
311: if (!$linktext) { $linktext='<sup>*</sup>'; }
312: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
313: if (!$width) { $width='500'; }
314: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
315: if (!$height) { $height='200'; }
316: $result = "<script type=\"text/javascript\"> function LONCAPA_newwindow_$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);\">$linktext</a>";
317: } elsif ($target eq 'tex') {
318: $result = '}';
319: } else {
320: $result = '';
321: }
322: return $result;
323: }
324:
325: sub start_import {
326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
327: my $bodytext=$$parser[$#$parser]->get_text("/import");
328: my $result ="";
329:
330: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
331:
332: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
333: $target eq 'tex' || $target eq 'analyze' ) {
334: # FIXME this probably needs to be smart about construction vs.
335: # non construction space.
336: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
337: my $file=&Apache::lonnet::getfile($location);
338: if ($file == -1) {
339: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
340: return "";
341: }
342:
343: my $dir=$location;
344: $dir=~s:/[^/]*$::;
345: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
346: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
347: if (!$id) { $id=$Apache::lonxml::curdepth; }
348: push(@Apache::inputtags::import,$id);
349: push(@Apache::inputtags::importlist,$id);
350:
351: &Apache::lonxml::newparser($parser,\$file,$dir);
352:
353: } elsif ($target eq "edit" ) {
354: $result.=&Apache::edit::tag_start($target,$token);
355: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
356: $result.=&Apache::edit::browse(undef,'textnode');
357: #FIXME this need to convert $bodytext to be a contruction space reference
358: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
359: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
360: } elsif ($target eq 'modified') {
361: $bodytext=$$parser[$#$parser]->get_text("/import");
362: $result=$token->[4].&Apache::edit::modifiedfield($token);
363: &Apache::lonxml::debug($result);
364: } elsif ($target eq 'meta') {
365: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
366: $result.='<import part="'.$Apache::inputtags::part;
367: if ($id) {
368: $result.='" id="'.$id;
369: }
370: $result.='">';
371: $result.=$bodytext;
372: $result.='</import>';
373: }
374: return $result;
375: }
376:
377: sub end_import {
378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
379: pop(@Apache::inputtags::import);
380: my $result;
381: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
382: return $result;
383: }
384:
385: sub start_storetc {
386: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
387: my $result = '';
388: &Apache::lonxml::startredirection;
389: return $result;
390: }
391:
392: sub end_storetc {
393: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
394: my $result;
395: my $output=&Apache::lonxml::endredirection;
396: $output =~ s/\"/\"\;/g;
397: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
398: return $result;
399: }
400:
401:
402: sub start_physnet {
403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
404: my $bodytext = '/adm/includes/physnet.sty';
405: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
406: my $cbistyletext=&Apache::lonnet::getfile($location);
407:
408: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
409: $$parser['-1']->unget_token($token);
410: # if ( defined($$style{'physnet'}) ) {
411: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
412: # }
413: return "";
414: }
415:
416: sub end_physnet {
417: return '';
418: }
419:
420: sub start_standalone {
421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
422: my $result='';
423: if ($target eq 'web' ) {
424: if ( $ENV{'request.course.id'} ) {
425: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
426: } else {
427: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
428: }
429: }
430: return $result;
431: }
432:
433: sub end_standalone {
434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
435: my $result='';
436: if ($target eq 'web' ) {
437: if ( $ENV{'request.course.id'} ) {
438: } else {
439: $result='</td></tr></table>';
440: }
441: }
442: return $result;
443: }
444:
445: sub start_comment {
446: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
447: my $result='';
448: if ($target eq 'edit') {
449: $result=&Apache::edit::tag_start($target,$token);
450: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
451: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
452: } elsif ( $target eq 'modified') {
453: $result=$token->[4].&Apache::edit::modifiedfield($token);
454: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
455: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
456: #normally throw away comments
457: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
458: }
459: return $result;
460: }
461:
462: sub end_comment {
463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
464: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
465: return '';
466: }
467:
468:
469: sub xmlparse {
470: my ($string) = @_;
471: # &Apache::lonxml::debug("Got $string");
472: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
473: @Apache::scripttag::parser_env;
474: my @parser;
475: &Apache::lonxml::newparser(\@parser,\$string);
476: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
477: $parstack,\@parser,
478: $safeeval,$style);
479: return $result;
480: }
481:
482: 1;
483: __END__
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