1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.99 2003/06/18 21:04:42 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: $result.="<script type=\"text/javascript\"> function LONCAPA_scriptvars_$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>";
103: my $listing=&Apache::run::dump($target,$safeeval);
104: $listing=~s/\'/\\\'/g;
105: $listing=~s/\n/\\n/g;
106: $listing=~s/\r/\\r/g;
107: $result.=$listing;
108: $result.= "</pre></body></html>');newWindow.document.close();}</script><a href=\"javascript:LONCAPA_scriptvars_$Apache::lonxml::curdepth();void(0);\">Script Vars</a><br />";
109: }
110: } elsif ($target eq "edit" ) {
111: #&Apache::run::run($bodytext,$safeeval);
112: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
113: $result=&Apache::edit::tag_start($target,$token,'Script');
114: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
115: }
116: } else {
117: if ($target ne "meta") {
118: $result = $token->[4];
119: my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
120: $result.=$bodytext;
121: }
122: }
123: return $result;
124: }
125:
126: sub end_script {
127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
128: if ( $target eq "meta" ) { return ''; }
129: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
130: my $result='';
131: #other script blocks need to survive
132: if ($type ne "loncapa/perl") {
133: return $token->[2];
134: } elsif ($target eq 'edit' ) {
135: return &Apache::edit::end_table();
136: } elsif ($target eq 'answer') {
137: $Apache::lonxml::evaluate++;
138: }
139: return '';
140: }
141:
142: sub start_display {
143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
144:
145: my $result;
146: my $bodytext=&Apache::lonxml::get_all_text("/display",$parser);
147:
148: if ( $target eq "modified" ) {
149: $result=$token->[4].&Apache::edit::modifiedfield();
150: } elsif ( $target eq 'web' || $target eq 'tex' ||
151: $target eq 'grade' || $target eq 'answer' ||
152: $target eq 'analyze') {
153: if (!$Apache::lonxml::default_homework_loaded) {
154: &Apache::lonxml::default_homework_load($safeeval);
155: }
156: $result=&Apache::run::run($bodytext,$safeeval);
157: if ($target eq 'grade' || $target eq 'answer' ||
158: $target eq 'analyze') {
159: $result=''; # grade should produce no output
160: }
161: } elsif ($target eq "edit" ) {
162: #$result =
163: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
164: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
165: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
166: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
167: }
168: return $result;
169: }
170:
171: sub end_display {
172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
173: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
174: return '';
175: }
176:
177: sub start_scriptlib {
178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
179: my $bodytext;
180: my $result ='';
181: my $error='';
182:
183: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
184: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
185: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
186: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
187: $$parstack[$#$parstack]);
188: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
189: $bodytext);
190: my $script=&Apache::lonnet::getfile($location);
191: if ($script == -1) {
192: if ($target eq 'edit') {
193: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
194: } else {
195: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
196: return "";
197: }
198: }
199: &Apache::run::run($script,$safeeval);
200: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
201: }
202: if ($target eq "edit" ) {
203: $result=
204: &Apache::edit::tag_start($target,$token,'New Script Functions').
205: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
206: &Apache::edit::browse(undef,'textnode').
207: $error.'</td></tr>'.
208: &Apache::edit::end_table();
209: }
210: if ($target eq "modified" ) {
211: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
212: $result=$token->[4].&Apache::edit::modifiedfield($token);
213: &Apache::lonxml::debug($result);
214: }
215: return $result;
216: }
217:
218: sub end_scriptlib {
219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
220: my @result;
221: if ($target eq "edit" ) { $result[1]='no'; }
222: return @result;
223: }
224:
225: sub start_parserlib {
226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
227: my $bodytext;
228: my $result ="";
229: my $error='';
230: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
231: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
232: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
233: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
234: $$parstack[$#$parstack]);
235: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
236: $bodytext);
237: my $styletext=&Apache::lonnet::getfile($location);
238: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
239: if ($styletext == -1) {
240: if ($target eq 'edit') {
241: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
242: } else {
243: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
244: return "";
245: }
246: }
247: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
248: }
249: if ($target eq "edit" ) {
250: $result=
251: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
252: &Apache::edit::editline($token->[1],$bodytext,'',40).
253: $error.'</td></tr>'.
254: &Apache::edit::end_table();
255: }
256: if ($target eq "modified" ) {
257: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
258: $result=$token->[4].&Apache::edit::modifiedfield($token);
259: &Apache::lonxml::debug($result);
260: }
261: return $result;
262: }
263:
264: sub end_parserlib {
265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
266: my @result;
267: if ($target eq "edit" ) { $result[1]='no'; }
268: return @result;
269: }
270:
271: sub start_window {
272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
273: my $result = '';
274: if ($target eq 'web') {
275: &Apache::lonxml::startredirection;
276: } elsif ($target eq 'tex') {
277: $result = '\unskip\footnote{';
278: }
279: return $result;
280: }
281:
282: sub end_window {
283: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
284: my $result;
285: if ($target eq 'web') {
286: my $output=&Apache::lonxml::endredirection;
287: $output =~ s/[\n\r]/ /g;
288: # $output = &HTML::Entities::encode($output,'<>&"\'');
289: $output =~ s/\'/\\\'/g;
290: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
291: if (!$linktext) { $linktext='<sup>*</sup>'; }
292: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
293: if (!$width) { $width='500'; }
294: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
295: if (!$height) { $height='200'; }
296: $result = "<script type=\"text/javascript\"> function LONCAPA_newwindow_$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);\">$linktext</a>";
297: } elsif ($target eq 'tex') {
298: $result = '}';
299: } else {
300: $result = '';
301: }
302: return $result;
303: }
304:
305: sub start_import {
306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
307: my $bodytext=$$parser[$#$parser]->get_text("/import");
308: my $result ="";
309:
310: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
311:
312: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
313: $target eq 'tex' || $target eq 'analyze' ) {
314: # FIXME this probably needs to be smart about construction vs.
315: # non construction space.
316: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
317: my $file=&Apache::lonnet::getfile($location);
318: if ($file == -1) {
319: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
320: return "";
321: }
322:
323: my $dir=$location;
324: $dir=~s:/[^/]*$::;
325: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
326: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
327: if (!$id) { $id=$Apache::lonxml::curdepth; }
328: push(@Apache::inputtags::import,$id);
329: push(@Apache::inputtags::importlist,$id);
330:
331: &Apache::lonxml::newparser($parser,\$file,$dir);
332:
333: } elsif ($target eq "edit" ) {
334: $result.=&Apache::edit::tag_start($target,$token);
335: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
336: $result.=&Apache::edit::browse(undef,'textnode');
337: #FIXME this need to convert $bodytext to be a contruction space reference
338: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
339: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
340: } elsif ($target eq 'modified') {
341: $bodytext=$$parser[$#$parser]->get_text("/import");
342: $result=$token->[4].&Apache::edit::modifiedfield($token);
343: &Apache::lonxml::debug($result);
344: } elsif ($target eq 'meta') {
345: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
346: $result.='<import part="'.$Apache::inputtags::part;
347: if ($id) {
348: $result.='" id="'.$id;
349: }
350: $result.='">';
351: $result.=$bodytext;
352: $result.='</import>';
353: }
354: return $result;
355: }
356:
357: sub end_import {
358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
359: pop(@Apache::inputtags::import);
360: my $result;
361: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
362: return $result;
363: }
364:
365: sub start_storetc {
366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
367: my $result = '';
368: &Apache::lonxml::startredirection;
369: return $result;
370: }
371:
372: sub end_storetc {
373: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
374: my $result;
375: my $output=&Apache::lonxml::endredirection;
376: $output =~ s/\"/\"\;/g;
377: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
378: return $result;
379: }
380:
381:
382: sub start_physnet {
383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
384: my $bodytext = '/adm/includes/physnet.sty';
385: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
386: my $cbistyletext=&Apache::lonnet::getfile($location);
387:
388: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
389: $$parser['-1']->unget_token($token);
390: # if ( defined($$style{'physnet'}) ) {
391: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
392: # }
393: return "";
394: }
395:
396: sub end_physnet {
397: return '';
398: }
399:
400: sub start_standalone {
401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
402: my $result='';
403: if ($target eq 'web' ) {
404: if ( $ENV{'request.course.id'} ) {
405: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
406: } else {
407: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
408: }
409: }
410: return $result;
411: }
412:
413: sub end_standalone {
414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
415: my $result='';
416: if ($target eq 'web' ) {
417: if ( $ENV{'request.course.id'} ) {
418: } else {
419: $result='</td></tr></table>';
420: }
421: }
422: return $result;
423: }
424:
425: sub start_comment {
426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
427: my $result='';
428: if ($target eq 'edit') {
429: $result=&Apache::edit::tag_start($target,$token);
430: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
431: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
432: } elsif ( $target eq 'modified') {
433: $result=$token->[4].&Apache::edit::modifiedfield($token);
434: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
435: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
436: #normally throw away comments
437: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
438: }
439: return $result;
440: }
441:
442: sub end_comment {
443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
444: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
445: return '';
446: }
447:
448:
449: sub xmlparse {
450: my ($string) = @_;
451: # &Apache::lonxml::debug("Got $string");
452: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
453: @Apache::scripttag::parser_env;
454: my @parser;
455: &Apache::lonxml::newparser(\@parser,\$string);
456: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
457: $parstack,\@parser,
458: $safeeval,$style);
459: return $result;
460: }
461:
462: 1;
463: __END__
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