1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.103 2003/10/30 20:52:54 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=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: 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 'grade' || $target eq 'meta' ||
206: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
207: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
208: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
209: $$parstack[$#$parstack]);
210: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
211: $bodytext);
212: my $script=&Apache::lonnet::getfile($location);
213: if ($script == -1) {
214: if ($target eq 'edit') {
215: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
216: } else {
217: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
218: return "";
219: }
220: }
221: &Apache::run::run($script,$safeeval);
222: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
223: }
224: if ($target eq "edit" ) {
225: $result=
226: &Apache::edit::tag_start($target,$token,'New Script Functions').
227: &Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
228: &Apache::edit::browse(undef,'textnode').
229: $error.'</td></tr>'.
230: &Apache::edit::end_table();
231: }
232: if ($target eq "modified" ) {
233: $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
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: $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
278: }
279: return $result;
280: }
281:
282: sub end_parserlib {
283: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
284: my @result;
285: if ($target eq "edit" ) { $result[1]='no'; }
286: return @result;
287: }
288:
289: sub start_window {
290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
291: my $result = '';
292: if ($target eq 'web') {
293: &Apache::lonxml::startredirection;
294: } elsif ($target eq 'tex') {
295: $result = '\unskip\footnote{';
296: }
297: return $result;
298: }
299:
300: sub end_window {
301: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
302: my $result;
303: if ($target eq 'web') {
304: my $output=&Apache::lonxml::endredirection;
305: $output =~ s/[\n\r]/ /g;
306: # $output = &HTML::Entities::encode($output,'<>&"\'');
307: $output =~ s/\'/\\\'/g;
308: my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
309: if (!$linktext) { $linktext='<sup>*</sup>'; }
310: my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
311: if (!$width) { $width='500'; }
312: my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
313: if (!$height) { $height='200'; }
314: $result = "<script type=\"text/javascript\"> function LONCAPA_newwindow_$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);\">$linktext</a>";
315: } elsif ($target eq 'tex') {
316: $result = '}';
317: } else {
318: $result = '';
319: }
320: return $result;
321: }
322:
323: sub start_import {
324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
325: my $bodytext=$$parser[$#$parser]->get_text("/import");
326: my $result ="";
327:
328: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
329:
330: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
331: $target eq 'tex' || $target eq 'analyze' ) {
332: # FIXME this probably needs to be smart about construction vs.
333: # non construction space.
334: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
335: my $file=&Apache::lonnet::getfile($location);
336: if ($file == -1) {
337: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
338: return "";
339: }
340:
341: my $dir=$location;
342: $dir=~s:/[^/]*$::;
343: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
344: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
345: if (!$id) { $id=$Apache::lonxml::curdepth; }
346: push(@Apache::inputtags::import,$id);
347: push(@Apache::inputtags::importlist,$id);
348:
349: &Apache::lonxml::newparser($parser,\$file,$dir);
350:
351: } elsif ($target eq "edit" ) {
352: $result.=&Apache::edit::tag_start($target,$token);
353: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
354: $result.=&Apache::edit::browse(undef,'textnode');
355: #FIXME this need to convert $bodytext to be a contruction space reference
356: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
357: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
358: } elsif ($target eq 'modified') {
359: $result=$token->[4].&Apache::edit::modifiedfield("/import",$parser);
360: } elsif ($target eq 'meta') {
361: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
362: $result.='<import part="'.$Apache::inputtags::part;
363: if ($id) {
364: $result.='" id="'.$id;
365: }
366: $result.='">';
367: $result.=$bodytext;
368: $result.='</import>';
369: }
370: return $result;
371: }
372:
373: sub end_import {
374: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
375: pop(@Apache::inputtags::import);
376: my $result;
377: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
378: return $result;
379: }
380:
381: sub start_storetc {
382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
383: my $result = '';
384: &Apache::lonxml::startredirection;
385: return $result;
386: }
387:
388: sub end_storetc {
389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
390: my $result;
391: my $output=&Apache::lonxml::endredirection;
392: $output =~ s/\"/\"\;/g;
393: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
394: return $result;
395: }
396:
397:
398: sub start_physnet {
399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
400: my $bodytext = '/adm/includes/physnet.sty';
401: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
402: my $cbistyletext=&Apache::lonnet::getfile($location);
403:
404: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
405: $$parser['-1']->unget_token($token);
406: # if ( defined($$style{'physnet'}) ) {
407: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
408: # }
409: return "";
410: }
411:
412: sub end_physnet {
413: return '';
414: }
415:
416: sub start_standalone {
417: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
418: my $result='';
419: if ($target eq 'web' ) {
420: if ( $ENV{'request.course.id'} ) {
421: my $inside = &Apache::lonxml::get_all_text("/standalone",$parser);
422: } else {
423: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
424: }
425: }
426: return $result;
427: }
428:
429: sub end_standalone {
430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
431: my $result='';
432: if ($target eq 'web' ) {
433: if ( $ENV{'request.course.id'} ) {
434: } else {
435: $result='</td></tr></table>';
436: }
437: }
438: return $result;
439: }
440:
441: sub start_comment {
442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
443: my $result='';
444: if ($target eq 'edit') {
445: $result=&Apache::edit::tag_start($target,$token);
446: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
447: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
448: } elsif ( $target eq 'modified') {
449: $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
450: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
451: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
452: #normally throw away comments
453: my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser);
454: }
455: return $result;
456: }
457:
458: sub end_comment {
459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
460: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
461: return '';
462: }
463:
464:
465: sub xmlparse {
466: my ($string) = @_;
467: # &Apache::lonxml::debug("Got $string");
468: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
469: @Apache::scripttag::parser_env;
470: my @parser;
471: &Apache::lonxml::newparser(\@parser,\$string);
472: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
473: $parstack,\@parser,
474: $safeeval,$style);
475: return $result;
476: }
477:
478: 1;
479: __END__
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