1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.106 2004/01/16 19:46:03 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 $bodytext=&Apache::lonxml::get_all_text("/script",$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 $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
133: $result=&Apache::edit::tag_start($target,$token,'Script');
134: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
135: }
136: } else {
137: if ($target ne "meta") {
138: $result = $token->[4];
139: my $bodytext=&Apache::lonxml::get_all_text("/script",$parser);
140: $result.=$bodytext;
141: }
142: }
143: return $result;
144: }
145:
146: sub end_script {
147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
148: if ( $target eq "meta" ) { return ''; }
149: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
150: my $result='';
151: #other script blocks need to survive
152: if ($type ne "loncapa/perl") {
153: return $token->[2];
154: } elsif ($target eq 'edit' ) {
155: return &Apache::edit::end_table();
156: } elsif ($target eq 'answer') {
157: $Apache::lonxml::evaluate++;
158: }
159: return '';
160: }
161:
162: sub start_display {
163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
164:
165: my $result;
166:
167: if ( $target eq "modified" ) {
168: $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
169: } elsif ( $target eq 'web' || $target eq 'tex' ||
170: $target eq 'grade' || $target eq 'answer' ||
171: $target eq 'analyze') {
172: my $bodytext=&Apache::lonxml::get_all_text("/display",$parser);
173: if (!$Apache::lonxml::default_homework_loaded) {
174: &Apache::lonxml::default_homework_load($safeeval);
175: }
176: $result=&Apache::run::run($bodytext,$safeeval);
177: if ($target eq 'grade' || $target eq 'answer' ||
178: $target eq 'analyze') {
179: $result=''; # grade should produce no output
180: }
181: $Apache::lonxml::post_evaluate=0;
182: } elsif ($target eq "edit" ) {
183: my $bodytext=&Apache::lonxml::get_all_text("/display",$parser);
184: #$result =
185: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
186: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
187: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
188: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
189: }
190: return $result;
191: }
192:
193: sub end_display {
194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
195: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
196: return '';
197: }
198:
199: sub start_scriptlib {
200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
201: my $bodytext;
202: my $result ='';
203: my $error='';
204:
205: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
206: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
207: $target eq 'analyze') {
208: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
209: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
210: $$parstack[$#$parstack]);
211: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
212: $bodytext);
213: my $script=&Apache::lonnet::getfile($location);
214: if ($script == -1) {
215: if ($target eq 'edit') {
216: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
217: } else {
218: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
219: return "";
220: }
221: }
222: &Apache::run::run($script,$safeeval);
223: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
224: }
225: if ($target eq "edit" ) {
226: $result=
227: &Apache::edit::tag_start($target,$token,'New Script Functions').
228: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
229: &Apache::edit::browse(undef,'textnode').
230: $error.'</td></tr>'.
231: &Apache::edit::end_table();
232: }
233: if ($target eq "modified" ) {
234: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
235: }
236: return $result;
237: }
238:
239: sub end_scriptlib {
240: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
241: my @result;
242: if ($target eq "edit" ) { $result[1]='no'; }
243: return @result;
244: }
245:
246: sub start_parserlib {
247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
248: my $bodytext;
249: my $result ="";
250: my $error='';
251: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
252: $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
253: $target eq 'analyze') {
254: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
255: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
256: $$parstack[$#$parstack]);
257: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
258: $bodytext);
259: my $styletext=&Apache::lonnet::getfile($location);
260: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
261: if ($styletext == -1) {
262: if ($target eq 'edit') {
263: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
264: } else {
265: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
266: return "";
267: }
268: }
269: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
270: }
271: if ($target eq "edit" ) {
272: $result=
273: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
274: &Apache::edit::editline($token->[1],$bodytext,'',40).
275: $error.'</td></tr>'.
276: &Apache::edit::end_table();
277: }
278: if ($target eq "modified" ) {
279: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
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: $result = '\unskip\footnote{';
298: } elsif ($target eq 'edit') {
299: $result.=&Apache::edit::tag_start($target,$token);
300: $result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
301: $result.=&Apache::edit::text_arg('Height:','width',$token,5);
302: $result.=&Apache::edit::text_arg('Width:','height',$token,5);
303: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
304: } elsif ($target eq 'modified') {
305: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
306: $safeeval,'linttext',
307: 'width','height');
308: if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
309: }
310: return $result;
311: }
312:
313: sub end_window {
314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
315: my $result;
316: if ($target eq 'web') {
317: my $output=&Apache::lonxml::endredirection;
318: $output =~ s/[\n\r]/ /g;
319: # $output = &HTML::Entities::encode($output,'<>&"\'');
320: $output =~ s/\'/\\\'/g;
321: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
322: if (!$linktext) { $linktext='<sup>*</sup>'; }
323: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
324: if (!$width) { $width='500'; }
325: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
326: if (!$height) { $height='200'; }
327: $result = "<script type=\"text/javascript\"> function LONCAPA_newwindow_$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);\">$linktext</a>";
328: } elsif ($target eq 'tex') {
329: $result = '}';
330: } else {
331: $result = '';
332: }
333: return $result;
334: }
335:
336: sub start_import {
337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
338: my $bodytext=$$parser[$#$parser]->get_text("/import");
339: my $result ="";
340:
341: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
342:
343: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
344: $target eq 'tex' || $target eq 'analyze' ) {
345: # FIXME this probably needs to be smart about construction vs.
346: # non construction space.
347: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
348: my $file=&Apache::lonnet::getfile($location);
349: if ($file == -1) {
350: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
351: return "";
352: }
353:
354: my $dir=$location;
355: $dir=~s:/[^/]*$::;
356: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
357: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
358: if (!$id) { $id=$Apache::lonxml::curdepth; }
359: push(@Apache::inputtags::import,$id);
360: push(@Apache::inputtags::importlist,$id);
361:
362: &Apache::lonxml::newparser($parser,\$file,$dir);
363:
364: } elsif ($target eq "edit" ) {
365: $result.=&Apache::edit::tag_start($target,$token);
366: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
367: $result.=&Apache::edit::browse(undef,'textnode');
368: #FIXME this need to convert $bodytext to be a contruction space reference
369: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
370: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
371: } elsif ($target eq 'modified') {
372: $result=$token->[4].&Apache::edit::modifiedfield("/import",$parser);
373: } elsif ($target eq 'meta') {
374: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
375: $result.='<import part="'.$Apache::inputtags::part;
376: if ($id) {
377: $result.='" id="'.$id;
378: }
379: $result.='">';
380: $result.=$bodytext;
381: $result.='</import>';
382: }
383: return $result;
384: }
385:
386: sub end_import {
387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
388: pop(@Apache::inputtags::import);
389: my $result;
390: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
391: return $result;
392: }
393:
394: sub start_storetc {
395: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
396: my $result = '';
397: &Apache::lonxml::startredirection;
398: return $result;
399: }
400:
401: sub end_storetc {
402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
403: my $result;
404: my $output=&Apache::lonxml::endredirection;
405: $output =~ s/\"/\"\;/g;
406: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
407: return $result;
408: }
409:
410:
411: sub start_physnet {
412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
413: my $bodytext = '/adm/includes/physnet.sty';
414: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
415: my $cbistyletext=&Apache::lonnet::getfile($location);
416:
417: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
418: $$parser['-1']->unget_token($token);
419: # if ( defined($$style{'physnet'}) ) {
420: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
421: # }
422: return "";
423: }
424:
425: sub end_physnet {
426: return '';
427: }
428:
429: sub start_standalone {
430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
431: my $result='';
432: if ($target eq 'web' ) {
433: if ( $ENV{'request.course.id'} ) {
434: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
435: } else {
436: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
437: }
438: }
439: return $result;
440: }
441:
442: sub end_standalone {
443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
444: my $result='';
445: if ($target eq 'web' ) {
446: if ( $ENV{'request.course.id'} ) {
447: } else {
448: $result='</td></tr></table>';
449: }
450: }
451: return $result;
452: }
453:
454: sub start_comment {
455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
456: my $result='';
457: if ($target eq 'edit') {
458: $result=&Apache::edit::tag_start($target,$token);
459: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
460: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
461: } elsif ( $target eq 'modified') {
462: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
463: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
464: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
465: #normally throw away comments
466: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
467: }
468: return $result;
469: }
470:
471: sub end_comment {
472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
473: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
474: return '';
475: }
476:
477:
478: sub xmlparse {
479: my ($string) = @_;
480: # &Apache::lonxml::debug("Got $string");
481: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
482: @Apache::scripttag::parser_env;
483: my @parser;
484: &Apache::lonxml::newparser(\@parser,\$string);
485: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
486: $parstack,\@parser,
487: $safeeval,$style);
488: return $result;
489: }
490:
491: 1;
492: __END__
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