1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.107 2004/02/10 18:58:26 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: if ( $target eq "modified" ) {
108: $result=$token->[4].&Apache::edit::modifiedfield('/script',$parser);
109: } elsif ( $target eq 'web' || $target eq 'tex' ||
110: $target eq 'grade' || $target eq 'answer' ||
111: $target eq 'analyze' ) {
112: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
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=500,scrollbars=1,resizable=yes');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: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
133: $result=&Apache::edit::tag_start($target,$token,'Script');
134: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
135: } elsif ($target eq 'meta') {
136: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
137: }
138: } else {
139: if ($target ne "meta") {
140: $result = $token->[4];
141: my $bodytext=&Apache::lonxml::get_all_text_unblanaced("/script",$parser);
142: $result.=$bodytext;
143: }
144: }
145: return $result;
146: }
147:
148: sub end_script {
149: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
150: if ( $target eq "meta" ) { return ''; }
151: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
152: my $result='';
153: #other script blocks need to survive
154: if ($type ne "loncapa/perl") {
155: return $token->[2];
156: } elsif ($target eq 'edit' ) {
157: return &Apache::edit::end_table();
158: } elsif ($target eq 'answer') {
159: $Apache::lonxml::evaluate++;
160: }
161: return '';
162: }
163:
164: sub start_display {
165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
166:
167: my $result;
168:
169: if ( $target eq "modified" ) {
170: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
171: } elsif ( $target eq 'web' || $target eq 'tex' ||
172: $target eq 'grade' || $target eq 'answer' ||
173: $target eq 'analyze') {
174: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
175: if (!$Apache::lonxml::default_homework_loaded) {
176: &Apache::lonxml::default_homework_load($safeeval);
177: }
178: $result=&Apache::run::run($bodytext,$safeeval);
179: if ($target eq 'grade' || $target eq 'answer' ||
180: $target eq 'analyze') {
181: $result=''; # grade should produce no output
182: }
183: $Apache::lonxml::post_evaluate=0;
184: } elsif ($target eq "edit" ) {
185: my $bodytext=&Apache::lonxml::get_all_text_unblanced("/display",$parser);
186: #$result =
187: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
188: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
189: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
190: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
191: } elsif ($target eq 'meta') {
192: my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
193: }
194: return $result;
195: }
196:
197: sub end_display {
198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
199: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
200: return '';
201: }
202:
203: sub start_scriptlib {
204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
205: my $bodytext;
206: my $result ='';
207: my $error='';
208:
209: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
210: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
211: $target eq 'analyze') {
212: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
213: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
214: $$parstack[$#$parstack]);
215: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
216: $bodytext);
217: my $script=&Apache::lonnet::getfile($location);
218: if ($script == -1) {
219: if ($target eq 'edit') {
220: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
221: } else {
222: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
223: return "";
224: }
225: }
226: &Apache::run::run($script,$safeeval);
227: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
228: }
229: if ($target eq "edit" ) {
230: $result=
231: &Apache::edit::tag_start($target,$token,'New Script Functions').
232: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
233: &Apache::edit::browse(undef,'textnode').
234: $error.'</td></tr>'.
235: &Apache::edit::end_table();
236: }
237: if ($target eq "modified" ) {
238: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
239: }
240: return $result;
241: }
242:
243: sub end_scriptlib {
244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
245: my @result;
246: if ($target eq "edit" ) { $result[1]='no'; }
247: return @result;
248: }
249:
250: sub start_parserlib {
251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
252: my $bodytext;
253: my $result ="";
254: my $error='';
255: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
256: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
257: $target eq 'analyze') {
258: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
259: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
260: $$parstack[$#$parstack]);
261: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
262: $bodytext);
263: my $styletext=&Apache::lonnet::getfile($location);
264: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
265: if ($styletext == -1) {
266: if ($target eq 'edit') {
267: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
268: } else {
269: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
270: return "";
271: }
272: }
273: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
274: }
275: if ($target eq "edit" ) {
276: $result=
277: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
278: &Apache::edit::editline($token->[1],$bodytext,'',40).
279: $error.'</td></tr>'.
280: &Apache::edit::end_table();
281: }
282: if ($target eq "modified" ) {
283: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
284: }
285: return $result;
286: }
287:
288: sub end_parserlib {
289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
290: my @result;
291: if ($target eq "edit" ) { $result[1]='no'; }
292: return @result;
293: }
294:
295: sub start_window {
296: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
297: my $result = '';
298: if ($target eq 'web') {
299: &Apache::lonxml::startredirection;
300: } elsif ($target eq 'tex') {
301: $result = '\unskip\footnote{';
302: } elsif ($target eq 'edit') {
303: $result.=&Apache::edit::tag_start($target,$token);
304: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
305: $result.=&Apache::edit::text_arg('Height:','width',$token,5);
306: $result.=&Apache::edit::text_arg('Width:','height',$token,5);
307: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
308: } elsif ($target eq 'modified') {
309: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
310: $safeeval,'linttext',
311: 'width','height');
312: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
313: }
314: return $result;
315: }
316:
317: sub end_window {
318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
319: my $result;
320: if ($target eq 'web') {
321: my $output=&Apache::lonxml::endredirection;
322: $output =~ s/[\n\r]/ /g;
323: # $output = &HTML::Entities::encode($output,'<>&"\'');
324: $output =~ s/\'/\\\'/g;
325: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
326: if (!$linktext) { $linktext='<sup>*</sup>'; }
327: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
328: if (!$width) { $width='500'; }
329: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
330: if (!$height) { $height='200'; }
331: $result = "<script type=\"text/javascript\"> function LONCAPA_newwindow_$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);\">$linktext</a>";
332: } elsif ($target eq 'tex') {
333: $result = '}';
334: } else {
335: $result = '';
336: }
337: return $result;
338: }
339:
340: sub start_import {
341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
342: my $bodytext=$$parser[$#$parser]->get_text("/import");
343: my $result ="";
344:
345: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
346:
347: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
348: $target eq 'tex' || $target eq 'analyze' ) {
349: # FIXME this probably needs to be smart about construction vs.
350: # non construction space.
351: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
352: my $file=&Apache::lonnet::getfile($location);
353: if ($file == -1) {
354: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
355: return "";
356: }
357:
358: my $dir=$location;
359: $dir=~s:/[^/]*$::;
360: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
361: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
362: if (!$id) { $id=$Apache::lonxml::curdepth; }
363: push(@Apache::inputtags::import,$id);
364: push(@Apache::inputtags::importlist,$id);
365:
366: &Apache::lonxml::newparser($parser,\$file,$dir);
367:
368: } elsif ($target eq "edit" ) {
369: $result.=&Apache::edit::tag_start($target,$token);
370: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
371: $result.=&Apache::edit::browse(undef,'textnode');
372: #FIXME this need to convert $bodytext to be a contruction space reference
373: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
374: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
375: } elsif ($target eq 'modified') {
376: $result=$token->[4].&Apache::edit::modifiedfield("/import",$parser);
377: } elsif ($target eq 'meta') {
378: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
379: $result.='<import part="'.$Apache::inputtags::part;
380: if ($id) {
381: $result.='" id="'.$id;
382: }
383: $result.='">';
384: $result.=$bodytext;
385: $result.='</import>';
386: }
387: return $result;
388: }
389:
390: sub end_import {
391: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
392: pop(@Apache::inputtags::import);
393: my $result;
394: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
395: return $result;
396: }
397:
398: sub start_storetc {
399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
400: my $result = '';
401: &Apache::lonxml::startredirection;
402: return $result;
403: }
404:
405: sub end_storetc {
406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
407: my $result;
408: my $output=&Apache::lonxml::endredirection;
409: $output =~ s/\"/\"\;/g;
410: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
411: return $result;
412: }
413:
414:
415: sub start_physnet {
416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
417: my $bodytext = '/adm/includes/physnet.sty';
418: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
419: my $cbistyletext=&Apache::lonnet::getfile($location);
420:
421: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
422: $$parser['-1']->unget_token($token);
423: # if ( defined($$style{'physnet'}) ) {
424: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
425: # }
426: return "";
427: }
428:
429: sub end_physnet {
430: return '';
431: }
432:
433: sub start_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: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
439: } else {
440: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
441: }
442: }
443: return $result;
444: }
445:
446: sub end_standalone {
447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
448: my $result='';
449: if ($target eq 'web' ) {
450: if ( $ENV{'request.course.id'} ) {
451: } else {
452: $result='</td></tr></table>';
453: }
454: }
455: return $result;
456: }
457:
458: sub start_comment {
459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
460: my $result='';
461: if ($target eq 'edit') {
462: $result=&Apache::edit::tag_start($target,$token);
463: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
464: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
465: } elsif ( $target eq 'modified') {
466: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
467: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
468: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
469: #normally throw away comments
470: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
471: }
472: return $result;
473: }
474:
475: sub end_comment {
476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
477: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
478: return '';
479: }
480:
481:
482: sub xmlparse {
483: my ($string) = @_;
484: # &Apache::lonxml::debug("Got $string");
485: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
486: @Apache::scripttag::parser_env;
487: my @parser;
488: &Apache::lonxml::newparser(\@parser,\$string);
489: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
490: $parstack,\@parser,
491: $safeeval,$style);
492: return $result;
493: }
494:
495: 1;
496: __END__
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