Annotation of loncom/homework/structuretags.pm, revision 1.411
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.411 ! albertel 4: # $Id: structuretags.pm,v 1.410 2007/11/13 19:48:09 albertel Exp $
1.74 albertel 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: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.397 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 50: if ($target ne 'edit' && $target ne 'modified') {
51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
52: if ($target eq 'web' || $target eq 'webgrade') {
53: return $bodytext;
54: }
55: } elsif ($target eq "edit" ) {
56: my $bodytext =
57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
58: my $result = &Apache::edit::tag_start($target,$token);
59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
60: return $result;
61: } elsif ( $target eq "modified" ) {
62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
76: if ($target eq 'tex') {
77: return $bodytext.' ';
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.400 albertel 95: sub homework_js {
96: return &Apache::loncommon::resize_textarea_js().
97: <<'JS';
98: <script type="text/javascript">
99: function setSubmittedPart (part) {
100: this.document.lonhomework.submitted.value="part_"+part;
101: }
102:
103: function image_response_click (which, e) {
104: init_geometry();
105: if (!e) { e = window.event; } //IE
106: var input_element = document.lonhomework.elements[which];
1.401 albertel 107: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 108: var token = token_element.value;
1.401 albertel 109: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 110: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
111: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
112: var click = x+':'+y;
113: input_element.value = click;
114: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
115: }
116: </script>
117: JS
118: }
119:
1.48 albertel 120: sub page_start {
1.345 albertel 121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
122: $extra_head)=@_;
1.159 albertel 123: my %found;
1.207 albertel 124: foreach my $taginside (@$tagstack) {
1.159 albertel 125: foreach my $taglookedfor ('html','body','form') {
126: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
127: }
128: }
129:
1.343 albertel 130: if ($target eq 'tex') {
131: return
132: &Apache::londefdef::start_html($target,$token,$tagstack,
133: $parstack,$parser,$safeeval);
134: }
135:
1.400 albertel 136: $extra_head .= &homework_js();
1.374 albertel 137:
1.344 albertel 138: my %body_args;
139: if (defined($found{'html'})) {
140: $body_args{'skip_phases'}{'head'}=1;
141: } else {
1.343 albertel 142:
1.345 albertel 143: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 144:
1.379 albertel 145: $extra_head .= &Apache::londefdef::generate_css_links();
146:
1.384 albertel 147: if ($env{'request.state'} eq 'construct') {
1.343 albertel 148: $extra_head.=&Apache::edit::js_change_detection().
149: "<script type=\"text/javascript\">\n".
150: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
151: &Apache::loncommon::browser_and_searcher_javascript().
152: "\n</script>\n";
153: }
1.159 albertel 154: }
1.343 albertel 155:
1.344 albertel 156: if (defined($found{'body'})) {
157: $body_args{'skip_phases'}{'body'}=1;
158: } elsif (!defined($found{'body'})
159: && $env{'request.state'} eq 'construct') {
1.343 albertel 160: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 161: if ($env{'environment.remote'} ne 'off') {
162: $body_args{'only_body'} = 1;
163: }
1.297 albertel 164: }
1.272 albertel 165: } elsif (!defined($found{'body'})) {
1.343 albertel 166: my %add_entries;
1.159 albertel 167: my $background=&Apache::lonxml::get_param('background',$parstack,
168: $safeeval);
1.343 albertel 169: if ($background ne '' ) {
170: $add_entries{'background'} = $background;
171: }
1.344 albertel 172:
1.290 albertel 173: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
174: $safeeval);
1.344 albertel 175: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
176:
177: $body_args{'bgcolor'} = $bgcolor;
178: $body_args{'no_title'} = 1;
179: $body_args{'force_register'} = 1;
180: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 181: if ($env{'environment.remote'} eq 'off'
182: && $env{'request.state'} eq 'construct') {
183: $body_args{'only_body'} = 1;
184: }
1.344 albertel 185: }
1.365 albertel 186: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 187: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
188: \%body_args);
189:
190: if (!defined($found{'body'})
191: && $env{'request.state'} ne 'construct'
192: && ($target eq 'web' || $target eq 'webgrade')) {
193:
1.367 albertel 194: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 195: if ($symb eq '' && !$publicuser) {
196: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
197: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
198: $page_start .= $help;
1.159 albertel 199: }
1.344 albertel 200: }
201:
1.409 albertel 202: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 203: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 204: }
1.344 albertel 205:
1.159 albertel 206: my $form_tag_start;
207: if (!defined($found{'form'})) {
1.337 albertel 208: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 209: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 210: $form_tag_start.=$uri.'" ';
211: if ($target eq 'edit') {
212: $form_tag_start.=&Apache::edit::form_change_detection();
213: }
1.368 albertel 214: $form_tag_start.='>'."\n";
1.355 albertel 215:
216: my $symb=&Apache::lonnet::symbread();
217: if ($symb =~ /\S/) {
218: $symb=
219: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
220: $form_tag_start.=
1.368 albertel 221: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 222: }
1.159 albertel 223: }
1.343 albertel 224: return ($page_start,$form_tag_start);
1.105 albertel 225: }
226:
1.141 matthew 227: #use Time::HiRes();
1.105 albertel 228: sub get_resource_name {
1.159 albertel 229: my ($parstack,$safeeval)=@_;
1.388 foxr 230: my $name;
1.204 albertel 231: if (defined($Apache::lonhomework::name)) {
1.388 foxr 232: $name = $Apache::lonhomework::name;
233: } else {
234: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 235: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 236: if ($name eq '') {
237: $name=&Apache::lonnet::EXT('resource.title');
238: if ($name eq 'con_lost') { $name = ''; }
239: }
240: if ($name!~/\S+/) {
241: $name=$env{'request.uri'};
242: $name=~s-.*/([^/]+)$-$1-;
243: }
244: # The name has had html tags escaped:
245:
246: $name=~s/</</gs;
247: $name=~s/>/>/gs;
248:
249: $Apache::lonhomework::name=$name;
1.204 albertel 250: }
1.159 albertel 251: return $name;
1.105 albertel 252: }
253:
254: sub setup_rndseed {
1.159 albertel 255: my ($safeeval)=@_;
256: my $rndseed;
1.367 albertel 257: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 258: if ($env{'request.state'} eq "construct"
259: || $symb eq ''
260: || $Apache::lonhomework::type eq 'practice'
261: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 262: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 263: ['rndseed']);
1.284 albertel 264: $rndseed=$env{'form.rndseed'};
1.159 albertel 265: if (!$rndseed) {
1.162 albertel 266: $rndseed=$Apache::lonhomework::history{'rndseed'};
267: if (!$rndseed) {
268: $rndseed=time;
269: }
1.284 albertel 270: $env{'form.rndseed'}=$rndseed;
1.162 albertel 271: }
1.374 albertel 272: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
273: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 274: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 275: srand(time);
276: $rndseed=int(rand(2100000000));
1.284 albertel 277: $env{'form.rndseed'}=$rndseed;
278: delete($env{'form.resetdata'});
279: delete($env{'form.newrandomization'});
1.159 albertel 280: }
1.187 albertel 281: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 282: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 283: }
1.247 albertel 284: if ($Apache::lonhomework::history{'resource.CODE'}) {
285: $rndseed=&Apache::lonnet::rndseed();
286: }
1.221 albertel 287: if ($safeeval) {
288: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 289: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 290: }
1.159 albertel 291: }
292: return $rndseed;
1.105 albertel 293: }
294:
1.268 albertel 295: sub remember_problem_state {
296: return '
1.284 albertel 297: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
298: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
299: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 300: }
301:
1.105 albertel 302: sub problem_edit_header {
1.268 albertel 303: return '<input type="hidden" name="submitted" value="edit" />'.
304: &Apache::structuretags::remember_problem_state().'
1.408 albertel 305: <div class="LC_edit_problem_header">
306: <div class="LC_edit_problem_header_title">
307: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
308: </div>
309: <div class="LC_edit_problem_discards">
1.210 albertel 310: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 311: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 312: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 313: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 314: </div>
315: <div class="LC_edit_problem_saves">
316: <input type="submit" name="submit" accesskey="s" value="'.&mt('Save and Edit').'" />
317: <input type="submit" name="submit" accesskey="v" value="'.&mt('Save and View').'" />
318: </div>
319: <hr class="LC_edit_problem_divide" />
1.409 albertel 320: '.&Apache::lonxml::message_location().'
1.408 albertel 321: </div>
322: '.
1.282 albertel 323: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 324: }
325:
326: sub problem_edit_footer {
1.411 ! albertel 327: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Save and Edit').'" />
! 328: <input type="submit" name="submit" value="'.&mt('Save and View').'" />'.
1.348 albertel 329: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 330: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 331: }
332:
1.235 albertel 333: sub option {
334: my ($value,$name) = @_;
335: my $result ="<option value='".$value."' ";
1.284 albertel 336: if ($env{'form.'.$name} eq $value) {
1.235 albertel 337: $result.=" selected='on' ";
338: }
339: $result.='>';
340: return $result;
341: }
342:
1.105 albertel 343: sub problem_web_to_edit_header {
1.159 albertel 344: my ($rndseed)=@_;
1.406 albertel 345: my $result .= '<div class="LC_edit_problem_header">';
346:
347: if (!$Apache::lonhomework::parsing_a_task) {
348: $result .=
349: '<div class="LC_edit_problem_header_title">'.
350: &mt('Problem Testing').
351: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
352: '</div>';
353: } else {
354: $result .=
355: '<div class="LC_edit_problem_header_title">'.
356: &mt('Task Testing').
357: '</div>';
358: }
359:
1.315 albertel 360: my $show_all_foils_text =
361: ($Apache::lonhomework::parsing_a_task) ?
362: &mt(' Show All Instances')
363: : &mt(' Show All Foils');
364:
1.406 albertel 365: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
366: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
367: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
368:
369:
1.384 albertel 370:
1.406 albertel 371: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 372: if (!$Apache::lonhomework::parsing_a_task) {
373: $result.="
1.406 albertel 374: <div class='LC_edit_problem_header_row1'>
375: <span class=\"LC_nobreak\">
1.405 albertel 376: ".&mt("Problem Status:")."
1.235 albertel 377: <select name='problemstate'>
1.270 albertel 378: <option value=''></option>
1.235 albertel 379: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
380: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
381: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
382: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
383: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
384: </select>
1.406 albertel 385: </span>
386: <span class=\"LC_nobreak\">
1.405 albertel 387: ".&mt("Problem Type:")."
1.235 albertel 388: <select name='problemtype'>
1.270 albertel 389: <option value=''></option>
1.242 albertel 390: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
391: ".&option('problem','problemtype').&mt("Homework problem")."</option>
392: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 393: </select>
1.406 albertel 394: </span>
395: $show_all
396: </div>
397: <div class='LC_edit_problem_header_row2'>
398: <span class=\"LC_nobreak\">
1.405 albertel 399: ".&mt("Feedback Mode:")."
1.235 albertel 400: <select name='problemstatus'>
401: <option value=''></option>
1.242 albertel 402: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 403: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
404: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 405: </select>
1.406 albertel 406: </span>
407: ";
408:
1.376 albertel 409: } elsif ($Apache::lonhomework::parsing_a_task) {
410: $result.="
1.406 albertel 411: <div class='LC_edit_problem_header_row1'>
412: <span class=\"LC_nobreak\">
1.405 albertel 413: ".&mt("Problem Status:")."
1.376 albertel 414: <select name='problemstate'>
415: <option value=''></option>
416: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
417: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
418: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
419: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
420: </select>
1.406 albertel 421: </span>
422: $show_all
423: ";
424: }
425:
426: $result.='
427: <span class="LC_nobreak">
428: '.&mt('Apply style file: ').'
429: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
430: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
431: </span>
432: </div>
433: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
434: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
435: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
436: </div>
437: <hr class="LC_edit_problem_divide" />
438: <div class="LC_edit_problem_header_randomize_row">
439: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
440: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
441: <input type="text" name="rndseed" size="10" value="'.
442: $rndseed.'"
443: onchange="javascript:document.lonhomework.changerandseed.click()" />';
444:
445: if (!$Apache::lonhomework::parsing_a_task) {
446: my $numtoanalyze=$env{'form.numtoanalyze'};
447: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 448: $result .= '<span class="LC_nobreak">'.
449: &mt('[_1] for [_2] versions.',
450: '<input type="submit" name="problemmode" value='.&mt('"Calculate answers').'" />',
451: '<input type="text" name="numtoanalyze" value="'.
452: $numtoanalyze.'" size="5" />').
453: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
454: '</span>';
455:
1.313 albertel 456: }
1.406 albertel 457:
458: $result.='
459: </div>
1.408 albertel 460: <div class="LC_edit_problem_header_edit_row">';
461: $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
462: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
463: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />';
464: $result.='
465: </div>
1.409 albertel 466: '.&Apache::lonxml::message_location().'
1.406 albertel 467: </div>';
1.159 albertel 468: return $result;
1.48 albertel 469: }
470:
1.65 albertel 471: sub initialize_storage {
1.357 albertel 472: my ($given_symb) = @_;
1.353 albertel 473: undef(%Apache::lonhomework::results);
474: undef(%Apache::lonhomework::history);
1.357 albertel 475: my ($symb,$courseid,$domain,$name) =
1.367 albertel 476: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 477:
478: # anonymous users (CODEd exams) have no data
479: if ($name eq 'anonymous'
480: && !defined($domain)) {
481: return;
482: }
483:
1.333 albertel 484: if ($env{'request.state'} eq 'construct'
485: || $symb eq ''
486: || $Apache::lonhomework::type eq 'practice') {
487:
488: my $namespace = $symb || $env{'request.uri'};
489: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 490: ($env{'form.resetdata'} eq &mt('New Problem Variation')
491: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 492: $env{'form.newrandomization'} eq &mt('New Randomization')) {
493: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
494: &Apache::lonxml::debug("Attempt reset");
495: }
1.159 albertel 496: %Apache::lonhomework::history=
1.333 albertel 497: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 498: my ($temp)=keys %Apache::lonhomework::history ;
499: &Apache::lonxml::debug("Return message of $temp");
500: } else {
501: %Apache::lonhomework::history=
502: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
503: }
1.353 albertel 504:
1.159 albertel 505: #ignore error conditions
1.67 albertel 506: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 507: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 508: }
509:
510: # -------------------------------------------------------------finalize_storage
511: # Stores away the result has to a student's environment
512: # checks form.grade_ for specific values, other wises stores
513: # to the running users environment
1.285 raeburn 514: # Will increment totals for attempts, students, and corrects
515: # if running user has student role.
1.65 albertel 516: sub finalize_storage {
1.357 albertel 517: my ($given_symb) = @_;
1.159 albertel 518: my $result;
1.289 albertel 519: if (%Apache::lonhomework::results) {
1.323 albertel 520: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
521: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 522: my ($symb,$courseid,$domain,$name) =
1.367 albertel 523: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 524: if ($env{'request.state'} eq 'construct'
525: || $symb eq ''
526: || $Apache::lonhomework::type eq 'practice') {
527: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 528: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 529: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 530: $namespace,'',$domain,$name);
1.159 albertel 531: &Apache::lonxml::debug('Construct Store return message:'.$result);
532: } else {
533: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
534: $symb,$courseid,$domain,$name);
535: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 536: if ($env{'request.role'} =~/^st/) {
537: &store_aggregates($symb,$courseid);
538: }
1.159 albertel 539: }
1.323 albertel 540: } else {
541: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 542: }
1.159 albertel 543: return $result;
1.65 albertel 544: }
545:
1.285 raeburn 546: # -------------------------------------------------------------store_aggregates
547: # Sends hash of values to be incremented in nohist_resourcetracker.db
548: # for the course. Increments total number of attempts, unique students
549: # and corrects for each part for an instance of a problem, as appropriate.
550: sub store_aggregates {
551: my ($symb,$courseid) = @_;
1.286 albertel 552: my %aggregate;
553: my @parts;
1.288 albertel 554: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
555: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 556: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 557: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 558: push(@parts, $1);
1.285 raeburn 559: }
560: }
1.286 albertel 561: foreach my $part (@parts) {
562: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
563: eq 'APPROX_ANS' ||
564: $Apache::lonhomework::results{'resource.'.$part.'.award'}
565: eq 'EXACT_ANS') {
1.287 albertel 566: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 567: }
1.286 albertel 568: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 569: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 570: } else {
1.293 albertel 571: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 572: if ($last_reset) {
1.293 albertel 573: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 574: $aggregate{$symb."\0".$part."\0users"} = 1;
575: }
576: }
1.285 raeburn 577: }
1.287 albertel 578: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 579: }
1.292 raeburn 580: if (keys (%aggregate) > 0) {
1.289 albertel 581: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 582: $cdomain,$cname);
583: }
584: }
1.289 albertel 585:
1.65 albertel 586: sub checkout_msg {
1.211 albertel 587: my %lt=&Apache::lonlocal::texthash(
588: 'resource'=>'The resource needs to be checked out',
589: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
590: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
591: 'checkout'=>'Check out Exam for Viewing',
592: 'checkout?'=>'Check out Exam?');
1.352 albertel 593: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 594: return (<<ENDCHECKOUT);
1.211 albertel 595: <h2>$lt{'resource'}</h2>
596: <p>$lt{'id_expln'}</p>
597: <font color="red">
598: <p>$lt{'warning'}</p>
1.91 albertel 599: </font>
1.352 albertel 600: <form name="checkout" method="POST" action="$uri">
1.91 albertel 601: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 602: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 603: </form>
604: ENDCHECKOUT
605: }
606:
1.252 albertel 607: sub firstaccess_msg {
1.253 albertel 608: my ($time,$symb)=@_;
609: my ($map)=&Apache::lonnet::decode_symb($symb);
610: my $foldertitle=&Apache::lonnet::gettitle($map);
611: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 612: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 613: return (<<ENDCHECKOUT);
1.253 albertel 614: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.352 albertel 615: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 616: <input type="hidden" name="markaccess" value="yes" />
617: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
618: </form>
619: ENDCHECKOUT
620: }
621:
1.204 albertel 622: sub init_problem_globals {
623: my ($type)=@_;
624: #initialize globals
1.308 foxr 625: # For problems, we start out in part 0 (outside a <part> tag).
626: # and part 0 is used to describe the main body of the <problem>
627: #
1.204 albertel 628: if ($type eq 'problem') {
629: $Apache::inputtags::part='0';
630: @Apache::inputtags::partlist=('0');
1.405 albertel 631: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 632: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 633:
1.266 albertel 634: } elsif ($type eq 'library') {
1.204 albertel 635: $Apache::inputtags::part='';
636: @Apache::inputtags::partlist=();
1.405 albertel 637: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 638: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 639:
1.304 albertel 640: } elsif ($type eq 'Task') {
641: $Apache::inputtags::part='0';
642: @Apache::inputtags::partlist=('0');
1.405 albertel 643: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 644: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 645: }
646: @Apache::inputtags::responselist = ();
647: @Apache::inputtags::importlist = ();
648: @Apache::inputtags::previous=();
649: @Apache::inputtags::previous_version=();
650: $Apache::structuretags::printanswer='No';
651: @Apache::structuretags::whileconds=();
652: @Apache::structuretags::whilebody=();
653: @Apache::structuretags::whileline=();
654: $Apache::lonhomework::scantronmode=0;
655: undef($Apache::lonhomework::name);
1.358 albertel 656: undef($Apache::lonhomework::default_type);
657: undef($Apache::lonhomework::type);
1.204 albertel 658: }
659:
660: sub reset_problem_globals {
661: my ($type)=@_;
662: undef(%Apache::lonhomework::history);
663: undef(%Apache::lonhomework::results);
664: undef($Apache::inputtags::part);
1.208 albertel 665: #don't undef this, lonhomework.pm takes care of this, we use this to
666: #detect if we try to do 2 problems in one file
667: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 668: undef($Apache::lonhomework::name);
1.358 albertel 669: undef($Apache::lonhomework::default_type);
670: undef($Apache::lonhomework::type);
671: undef($Apache::lonhomework::scantronmode);
672: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 673: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 674: }
675:
1.241 albertel 676: sub set_problem_state {
1.240 albertel 677: my ($part)=@_;
1.284 albertel 678: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 679: $Apache::lonhomework::history{"resource.$part.solved"}=
680: 'correct_by_student';
681: }
682: }
683:
1.241 albertel 684: sub get_problem_status {
685: my ($part)=@_;
1.267 albertel 686: my $problem_status;
1.284 albertel 687: if ($env{'request.state'} eq 'construct' &&
688: defined($env{'form.problemstatus'})) {
689: $problem_status=$env{'form.problemstatus'};
1.267 albertel 690: } else {
691: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
692: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 693: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 694: }
695: return $problem_status;
696: }
697:
1.9 albertel 698: sub start_problem {
1.326 albertel 699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 700:
1.311 foxr 701: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 702: if (!$Apache::lonxml::metamode) {
703: &Apache::lonxml::startredirection();
704: }
1.311 foxr 705:
1.308 foxr 706: # Problems don't nest and we don't allow more than one <problem> in
707: # a .problem file.
708: #
1.184 albertel 709: if ( $Apache::inputtags::part ne '' ||
710: $Apache::lonhomework::parsing_a_problem) {
711: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 712: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 713: return '';
714: }
1.184 albertel 715:
716: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 717: &init_problem_globals('problem');
1.166 albertel 718:
1.284 albertel 719: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 720: $Apache::lonhomework::scantronmode=1;
721: }
1.161 albertel 722:
1.159 albertel 723: if ($target ne 'analyze') {
724: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 725: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 726: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 727: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 728: }
1.332 albertel 729: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 730: }
1.164 albertel 731: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 732: my $uri=$env{'request.uri'};
1.159 albertel 733: if ($uri=~/\.(\w+)$/) {
734: $Apache::lonhomework::type=$1;
735: &Apache::lonxml::debug("Using type of $1");
736: } else {
737: $Apache::lonhomework::type='problem';
738: &Apache::lonxml::debug("Using default type, problem, :$uri:");
739: }
1.87 albertel 740: }
1.301 albertel 741: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 742:
1.363 albertel 743: &initialize_storage();
1.389 albertel 744: if ($target ne 'analyze'
745: && $env{'request.state'} eq 'construct') {
746: &set_problem_state('0');
747: }
748:
1.366 albertel 749: if ($target eq 'web') {
750: &Apache::lonxml::debug(" grading history ");
751: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
752: }
1.363 albertel 753:
1.159 albertel 754: #added vars to the scripting enviroment
1.213 albertel 755: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 756: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 757: &Apache::run::run($expression,$safeeval);
1.159 albertel 758: my $status;
759: my $accessmsg;
760:
1.343 albertel 761: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 762: my ($result,$form_tag_start);
1.354 albertel 763: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
764: || $target eq 'edit') {
1.350 albertel 765: ($result,$form_tag_start) =
766: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
767: $name);
768: }
769:
1.284 albertel 770: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 771:
772: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
773: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
774: $target eq 'tex') {
775: #handle exam checkout
776: if ($Apache::lonhomework::type eq 'exam') {
777: my $token=
778: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 779: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 780: $token=&Apache::lonxml::maketoken();
781: $Apache::lonhomework::history{"resource.0.outtoken"}=
782: $token;
783: }
1.343 albertel 784: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 785: }
1.284 albertel 786: if ($env{'form.markaccess'}) {
1.252 albertel 787: &Apache::lonnet::set_first_access('map');
788: }
1.159 albertel 789: #handle rand seed in construction space
790: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 791: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 792: if ($env{'request.state'} ne "construct" &&
793: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 794: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
795: $rndseed.'" />'.
796: '<input type="submit" name="resetdata"
1.334 albertel 797: value="'.&mt('New Problem Variation').'" />';
798: if (exists($env{'form.username'})) {
799: $form_tag_start.=
1.164 albertel 800: '<input type="hidden" name="username"
1.284 albertel 801: value="'.$env{'form.username'}.'" />';
1.334 albertel 802: }
1.333 albertel 803: if ($env{'request.role.adv'}) {
1.267 albertel 804: $form_tag_start.=
1.300 albertel 805: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 806: if (defined($env{'form.showallfoils'})) {
1.267 albertel 807: $form_tag_start.='checked="on"';
808: }
1.300 albertel 809: $form_tag_start.= ' />'.&mt(' Show All Foils').
810: '</label>';
1.267 albertel 811: }
812: $form_tag_start.='<hr />';
1.162 albertel 813: }
1.324 albertel 814:
815: ($status,$accessmsg,my $slot_name,my $slot) =
816: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 817: push (@Apache::inputtags::status,$status);
1.324 albertel 818:
1.159 albertel 819: my $expression='$external::datestatus="'.$status.'";';
820: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
821: &Apache::run::run($expression,$safeeval);
822: &Apache::lonxml::debug("Got $status");
1.324 albertel 823:
1.159 albertel 824: if (( $status eq 'CLOSED' ) ||
825: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 826: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 827: ( $status eq 'BANNED') ||
1.216 albertel 828: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 829: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 830: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 831: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
832: $style);
1.159 albertel 833: if ( $target eq "web" ) {
1.343 albertel 834: my $msg;
1.159 albertel 835: if ($status eq 'UNAVAILABLE') {
1.245 albertel 836: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 837: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 838: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 839: }
1.216 albertel 840: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 841: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 842: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 843: $msg.=&checkout_msg();
1.252 albertel 844: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 845: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 846: } elsif ($status eq 'NOT_IN_A_SLOT') {
847: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 848: }
849: $result.=$msg.'<br />';
850: } elsif ($target eq 'tex') {
1.332 albertel 851: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
852: : '\begin{minipage}{\textwidth}';
853: $result.='\begin{document}\noindent \vskip 1 mm '.
854: $startminipage.'\vskip 0 mm';
1.159 albertel 855: if ($status eq 'UNAVAILABLE') {
1.211 albertel 856: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 857: } else {
1.211 albertel 858: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 859: }
860: }
1.324 albertel 861: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 862: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
863: $style);
1.324 albertel 864: if ($target eq 'web') {
1.375 albertel 865: $result .=
866: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 867: } elsif ($target eq 'grade') {
868: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
869: 'problem');
870: }
1.159 albertel 871: } elsif ($target eq 'web') {
1.360 albertel 872: if ($status eq 'CAN_ANSWER'
873: && $slot_name ne ''
874: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
875: # unproctored slot access, self checkin
876: &Apache::bridgetask::check_in('problem',undef,undef,
877: $slot_name);
878: }
1.368 albertel 879: $result.="\n $form_tag_start \t".
1.227 albertel 880: '<input type="hidden" name="submitted" value="yes" />';
881: # create a page header and exit
1.284 albertel 882: if ($env{'request.state'} eq "construct") {
883: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 884: }
885: # if we are viewing someone else preserve that info
1.284 albertel 886: if (defined $env{'form.grade_symb'}) {
1.227 albertel 887: foreach my $field ('symb','courseid','domain','username') {
888: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 889: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 890: }
891: }
892: } elsif ($target eq 'tex') {
1.319 foxr 893: $result .= 'INSERTTEXFRONTMATTERHERE';
894:
1.99 sakharuk 895: }
1.159 albertel 896: } elsif ($target eq 'edit') {
1.343 albertel 897: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 898: $Apache::lonxml::warnings_error_header=
899: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 900: my $temp=&Apache::edit::insertlist($target,$token);
901: $result.=$temp;
902: } elsif ($target eq 'modified') {
903: $result=$token->[4];
904: } else {
905: # page_start returned a starting result, delete it if we don't need it
906: $result = '';
1.99 sakharuk 907: }
1.159 albertel 908: return $result;
1.9 albertel 909: }
910:
911: sub end_problem {
1.159 albertel 912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 913: my $result;
1.310 foxr 914:
1.321 albertel 915: if (!$Apache::lonxml::metamode) {
916: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 917: $Apache::lonxml::post_evaluate=0;
1.321 albertel 918: }
1.319 foxr 919:
920: if ($target eq 'tex') {
1.321 albertel 921: # Figure out the front matter and replace the
922: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
923: # this in end_problem because whether or not we display due
924: # dates depends on whether due dates have already been
925: # displayed in the problem parts.
926:
1.319 foxr 927: my $frontmatter = '';
928: my $startminipage = '';
929: if (not $env{'form.problem_split'}=~/yes/) {
930: $startminipage = '\begin{minipage}{\textwidth}';
931: }
932: my $id = $Apache::inputtags::part;
933: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
934: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
935: my @packages = split /,/,$packages;
936: my $allow_print_points = 0;
937: foreach my $partial_key (@packages) {
938: if ($partial_key=~m/^part_0$/) {
939: $allow_print_points=1;
940: }
941: }
942: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
943: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
944: if (lc($env{'course.'.$env{'request.course.id'}.
945: '.disableexampointprint'}) eq 'yes') {
946: $allow_print_points=0;
947: }
948: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
949: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
950: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
951: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
952:
953: # Figure out what the due date is and if we need to print
954: # it in the problem header. We have been logging the
955: # last due date written to file.
956:
957: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
958: my $duedate = POSIX::strftime("%c",localtime($duetime));
959: my $temp_file;
960: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
961:
962: # Figure out what the last printed due date is or set it
963: # to the epoch if no duedates have been printed.
964:
965: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
966: if (-e $filename) {
967: $temp_file = Apache::File->new($filename);
968: my @due_file = <$temp_file>;
969: $due_file_content = $due_file[$#due_file];
970: chomp $due_file_content;
971: }
972:
973: # We display the due date iff it is not the same as the last
974: # duedate in problem header ($due_file_content), and
975: # none of our parts displayed a duedate.
976: #
977: my $parts_with_displayduedate;
978: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
979: $parts_with_displayduedate =
980: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
981: } else {
982: $parts_with_displayduedate = 0;
983: }
984: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
985: $temp_file = Apache::File->new('>'.$filename);
986: print $temp_file "$duetime\n";
987: if (not $env{'request.symb'} =~ m/\.page_/) {
988: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
989: $frontmatter .= $begin_doc.
990: '\textit{Due date: '.$duedate.'} '.$toc_line;
991: } else {
992: $frontmatter.= $begin_doc.$toc_line;
993: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
994: }
995: } else {
1.381 albertel 996: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 997: }
998: } else {
999: if (not $env{'request.symb'} =~ m/\.page_/) {
1000: $frontmatter .= $begin_doc.$toc_line;
1001: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1002: } else {
1.381 albertel 1003: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1004: }
1005: }
1006: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1007: }
1008:
1.159 albertel 1009: my $status=$Apache::inputtags::status['-1'];
1010: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1011: $target eq 'tex') {
1.249 albertel 1012: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1013: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1014: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1015: &Apache::inputtags::grade;
1.324 albertel 1016: } elsif ($status eq 'NEEDS_CHECKIN') {
1017: # no need to grade, and don't want to hide data
1.249 albertel 1018: } else {
1019: # move any submission data to .hidden
1020: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1021: }
1.159 albertel 1022: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1023: $Apache::inputtags::part eq '0' &&
1.252 albertel 1024: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1025: # if part is zero, no <part>s existed, so we need show the current
1026: # grading status
1027: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1028: $result.= $gradestatus;
1029: }
1030: if (
1.284 albertel 1031: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1032: ($target eq 'answer') || ($target eq 'tex')
1033: ) {
1.227 albertel 1034: if ($target ne 'tex' &&
1.284 albertel 1035: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1036: $result.="</form>";
1.348 albertel 1037: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1038: }
1039: if ($target eq 'web') {
1.346 albertel 1040: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1041: } elsif ($target eq 'tex') {
1.178 sakharuk 1042: my $endminipage = '';
1.284 albertel 1043: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1044: $endminipage = '\end{minipage}';
1045: }
1.284 albertel 1046: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1047: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1048: } else {
1.262 sakharuk 1049: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1050: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1051: $result .= $endminipage.'\end{document} ';
1052: } else {
1.382 albertel 1053: $result .= $endminipage;
1.262 sakharuk 1054: }
1.159 albertel 1055: }
1056: }
1057: }
1058: if ($target eq 'grade') {
1059: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1060: &finalize_storage();
1061: }
1.284 albertel 1062: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1063: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1064: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1065: # normally we get it from above, but in CSTR
1.172 albertel 1066: # we always show answer mode too.
1.159 albertel 1067: }
1068: } elsif ($target eq 'meta') {
1069: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1070: @Apache::inputtags::response=();
1.159 albertel 1071: $result=&Apache::response::mandatory_part_meta;
1072: }
1.215 albertel 1073: $result.=&Apache::response::meta_part_order();
1.258 albertel 1074: $result.=&Apache::response::meta_response_order();
1.159 albertel 1075: } elsif ($target eq 'edit') {
1076: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1077: $result .= &problem_edit_footer();
1.320 albertel 1078: } elsif ($target eq 'modified') {
1079: $result .= $token->[2];
1.159 albertel 1080: }
1.155 albertel 1081:
1.284 albertel 1082: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1083: &Apache::inputtags::check_for_duplicate_ids();
1084: }
1.204 albertel 1085:
1086: &reset_problem_globals('problem');
1.159 albertel 1087:
1088: return $result;
1.48 albertel 1089: }
1090:
1.108 albertel 1091:
1.48 albertel 1092: sub start_library {
1.159 albertel 1093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1094: my ($result,$form_tag_start);
1.371 albertel 1095: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1096: &init_problem_globals('library');
1097: $Apache::lonhomework::type='problem';
1098: }
1.159 albertel 1099: if ($target eq 'edit') {
1.343 albertel 1100: ($result,$form_tag_start)=
1101: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1102: 'Edit');
1103: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1104: my $temp=&Apache::edit::insertlist($target,$token);
1105: $result.=$temp;
1106: } elsif ($target eq 'modified') {
1107: $result=$token->[4];
1.340 albertel 1108: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1109: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1110: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1111: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1112: ($result,$form_tag_start)=
1113: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1114: $name);
1.159 albertel 1115: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1116: $result.=" \n $form_tag_start".
1.159 albertel 1117: '<input type="hidden" name="submitted" value="yes" />';
1118: $result.=&problem_web_to_edit_header($rndseed);
1119: }
1120: return $result;
1.48 albertel 1121: }
1122:
1123: sub end_library {
1.159 albertel 1124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1125: my $result='';
1126: if ($target eq 'edit') {
1127: $result=&problem_edit_footer();
1.371 albertel 1128: } elsif ($target eq 'web'
1129: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1130: && $env{'request.state'} eq "construct") {
1.349 albertel 1131: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1132: }
1.371 albertel 1133: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1134: &reset_problem_globals('library');
1135: }
1.159 albertel 1136: return $result;
1.197 www 1137: }
1138:
1139: sub start_definetag {
1.326 albertel 1140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1141:
1142: my $result;
1143:
1144: my $name = $token->[2]->{'name'};
1.326 albertel 1145: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1146: if ($target eq 'web') {
1147: if ($name=~/^\//) {
1148: $result=
1149: '<br /><table class="LC_sty_end"><tr><th>'.
1150: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1151: } else {
1152: $result=
1153: '<br /><table class="LC_sty_begin"><tr><th>'.
1154: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1155: }
1156: $skip = &HTML::Entities::encode($skip, '<>&"');
1157: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1158: }
1159: return $result;
1160: }
1161:
1162: sub end_definetag {
1163: return '';
1.1 albertel 1164: }
1165:
1166: sub start_block {
1.201 albertel 1167: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1168:
1169: my $result;
1.1 albertel 1170:
1.339 albertel 1171: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1172: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1173: my $code = $token->[2]->{'condition'};
1.385 albertel 1174: if (defined($code) && $code ne '') {
1.137 albertel 1175: if (!$Apache::lonxml::default_homework_loaded) {
1176: &Apache::lonxml::default_homework_load($safeeval);
1177: }
1.131 albertel 1178: $result = &Apache::run::run($code,$safeeval);
1179: &Apache::lonxml::debug("block :$code: returned :$result:");
1180: } else {
1181: $result='1';
1182: }
1183: if ( ! $result ) {
1.201 albertel 1184: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1185: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1186: }
1187: $result='';
1188: } elsif ($target eq 'edit') {
1189: $result .=&Apache::edit::tag_start($target,$token);
1190: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1191: $token,40);
1192: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1193: } elsif ($target eq 'modified') {
1194: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1195: $safeeval,'condition');
1196: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1197: }
1.131 albertel 1198: return $result;
1.1 albertel 1199: }
1200:
1201: sub end_block {
1.167 www 1202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1203: my $result;
1204: if ($target eq "edit") {
1205: $result.= &Apache::edit::tag_end($target,$token,'');
1206: }
1207: return $result;
1208: }
1209:
1210: sub start_languageblock {
1.201 albertel 1211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1212:
1213: my $result;
1214:
1.339 albertel 1215: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1216: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1217: my $include = $token->[2]->{'include'};
1218: my $exclude = $token->[2]->{'exclude'};
1.398 www 1219: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1220: # This should not even happen, since we should at least have the server language
1.398 www 1221: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1222: # Now loop over all languages in order of preference
1223: foreach my $preferred_language (@preferred_languages) {
1.394 www 1224: # If the languageblock has no arguments, show the contents
1.399 www 1225: $result=1;
1226: my $found=0;
1.394 www 1227: # Do we have an include argument?
1.398 www 1228: if ($include) {
1.394 www 1229: # If include is specified, by default, don't render the block
1.399 www 1230: $result=0;
1.398 www 1231: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1232: # ... but if my preferred language is included, render it
1.398 www 1233: if ($included_language eq $preferred_language) {
1.399 www 1234: $result=1;
1235: $found=1;
1.398 www 1236: }
1237: }
1238: }
1.394 www 1239: # Do we have an exclude argument?
1.398 www 1240: if ($exclude) {
1.399 www 1241: $result=1;
1.398 www 1242: foreach my $excluded_language (split(/\,/,$exclude)) {
1243: if ($excluded_language eq $preferred_language) {
1.399 www 1244: $result=0;
1245: $found=1;
1.398 www 1246: }
1247: }
1248: }
1.399 www 1249: if ($found) { last; }
1.398 www 1250: }
1.201 albertel 1251: if ( ! $result ) {
1252: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1253: $style);
1254: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1255: }
1256: $result='';
1.167 www 1257: } elsif ($target eq 'edit') {
1258: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1259: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1260: $token,40);
1.211 albertel 1261: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1262: $token,40);
1263: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1264: } elsif ($target eq 'modified') {
1265: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1266: $safeeval,'include',
1267: 'exclude');
1.167 www 1268: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1269: }
1270: return $result;
1271: }
1272:
1273: sub end_languageblock {
1.170 www 1274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1275: my $result;
1.201 albertel 1276: if ($target eq "edit") {
1.170 www 1277: $result.= &Apache::edit::tag_end($target,$token,'');
1278: }
1279: return $result;
1280: }
1281:
1.397 albertel 1282: {
1283: my %available_texts;
1284: sub start_translated {
1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1286: &Apache::lonxml::register('Apache::structuretags',('lang'));
1287: undef(%available_texts);
1288: }
1289:
1290: sub end_translated {
1291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1292: my $result;
1293: #show the translation on viewable targets
1294: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1295: # or non-viewable targets, if it's embedded in something that
1296: # wants the output
1297: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1298: && &Apache::lonxml::in_redirection() ) ) {
1299: my @possibilities = keys(%available_texts);
1300: my $which =
1301: &Apache::loncommon::languages(\@possibilities) || 'default';
1302: $result = $available_texts{$which};
1303: }
1304: undef(%available_texts);
1305: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1306: return $result;
1307: }
1308:
1309:
1310: sub start_lang {
1311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1312: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1313: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1314: &Apache::lonxml::startredirection();
1315: }
1316: return '';
1317: }
1318:
1319: sub end_lang {
1320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1321: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1322: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1323: my $result = &Apache::lonxml::endredirection();
1324: my $which = &Apache::lonxml::get_param('which',$parstack,
1325: $safeeval);
1326: $available_texts{$which} = $result;
1327: }
1328: return '';
1329: }
1330: }
1331:
1.170 www 1332: sub start_instructorcomment {
1.201 albertel 1333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1334:
1335: my $result;
1336:
1.339 albertel 1337: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1338: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1339: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1340: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1341: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1342: $parser,$style);
1.170 www 1343: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1344: }
1345: $result='';
1346: } elsif ($target eq 'edit') {
1347: $result .=&Apache::edit::tag_start($target,$token);
1348: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1349: }
1350: return $result;
1351: }
1352:
1353: sub end_instructorcomment {
1.159 albertel 1354: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1355: my $result;
1356: if ($target eq "edit") {
1357: $result.= &Apache::edit::tag_end($target,$token,'');
1358: }
1359: return $result;
1.4 tsai 1360: }
1361:
1362: sub start_while {
1.326 albertel 1363: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1364:
1.160 albertel 1365: my $result;
1.339 albertel 1366: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1367: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1368: my $code = $token->[2]->{'condition'};
1.4 tsai 1369:
1.160 albertel 1370: push( @Apache::structuretags::whileconds, $code);
1371: if (!$Apache::lonxml::default_homework_loaded) {
1372: &Apache::lonxml::default_homework_load($safeeval);
1373: }
1374: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1375: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1376: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1377: push( @Apache::structuretags::whileline, $token->[5]);
1378: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1379: if ( $result ) {
1380: &Apache::lonxml::newparser($parser,\$bodytext);
1381: }
1382: } elsif ($target eq 'edit') {
1383: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1384: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1385: $token,40);
1386: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1387: } elsif ($target eq 'modified') {
1388: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1389: $safeeval,'condition');
1390: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1391: }
1.160 albertel 1392: return $result;
1.4 tsai 1393: }
1394:
1395: sub end_while {
1.159 albertel 1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1397: my $result;
1398:
1.339 albertel 1399: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1400: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1401: my $code = pop(@Apache::structuretags::whileconds);
1402: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1403: my $line = pop(@Apache::structuretags::whileline);
1404: my $return = &Apache::run::run($code,$safeeval);
1405: my $starttime=time;
1406: my $error=0;
1407: while ($return) {
1408: if (time-$starttime >
1409: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1410: $return = 0; $error=1; next;
1.161 albertel 1411: }
1412: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1413: if ($target eq 'grade' || $target eq 'answer' ||
1414: $target eq 'analyze') {
1415: # grade/answer/analyze should produce no output but if we
1416: # are redirecting, the redirecter should know what to do
1417: # with the output
1418: if (!$Apache::lonxml::redirection) { undef($result); }
1419: }
1.161 albertel 1420: $return = &Apache::run::run($code,$safeeval);
1421: }
1422: if ($error) {
1.270 albertel 1423: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1424: }
1425: } elsif ($target eq "edit") {
1426: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1427: }
1.160 albertel 1428: return $result;
1.1 albertel 1429: }
1.6 tsai 1430:
1.160 albertel 1431: # <randomlist show="1">
1.6 tsai 1432: # <tag1>..</tag1>
1433: # <tag2>..</tag2>
1434: # <tag3>..</tag3>
1.160 albertel 1435: # ...
1.6 tsai 1436: # </randomlist>
1437: sub start_randomlist {
1.326 albertel 1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1439: my $result;
1.339 albertel 1440: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1441: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1442: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1443: my $b_parser= HTML::LCParser->new(\$body);
1444: $b_parser->xml_mode(1);
1445: $b_parser->marked_sections(1);
1.159 albertel 1446: my $b_tok;
1447: my @randomlist;
1448: my $list_item;
1449: while($b_tok = $b_parser->get_token() ) {
1450: if($b_tok->[0] eq 'S') { # start tag
1451: # get content of the tag until matching end tag
1452: # get all text upto the matching tag
1453: # and push the content into @randomlist
1454: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1455: $b_parser);
1456: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1457: push(@randomlist,$list_item);
1458: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1459: # $list_item</b>";
1460: }
1461: if($b_tok->[0] eq 'T') { # text
1462: # what to do with text in between tags?
1463: # print "<b>TEXT $b_tok->[1]</b><br />";
1464: }
1465: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1466: # print "<b>END-TAG $b_tok->[1]</b><br />";
1467: # }
1468: }
1.303 albertel 1469: if (@randomlist) {
1470: my @idx_arr = (0 .. $#randomlist);
1471: &Apache::structuretags::shuffle(\@idx_arr);
1472: my $bodytext = '';
1473: my $show=$#randomlist;
1474: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1475: $showarg--;
1476: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1477: for(0 .. $show) {
1478: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1479: }
1480: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1481: }
1482: } elsif ($target eq 'edit' ) {
1483: $result .=&Apache::edit::tag_start($target,$token);
1484: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1485: $token,5);
1486: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1487: } elsif ($target eq 'modified' ) {
1488: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1489: $safeeval,'show');
1490: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1491: }
1492: return $result;
1.7 tsai 1493: }
1494:
1495: sub shuffle {
1496: my $a=shift;
1497: my $i;
1.303 albertel 1498: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1499: &Apache::response::pushrandomnumber();
1.159 albertel 1500: for($i=@$a;--$i;) {
1501: my $j=int(&Math::Random::random_uniform() * ($i+1));
1502: next if $i == $j;
1503: @$a[$i,$j] = @$a[$j,$i];
1504: }
1.251 albertel 1505: &Apache::response::poprandomnumber();
1.7 tsai 1506: }
1.6 tsai 1507: }
1508:
1509: sub end_randomlist {
1.159 albertel 1510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1511: my $result;
1512: if ($target eq 'edit' ) {
1513: $result=&Apache::edit::tag_end($target,$token,
1514: 'End Randomly Parsed Block');
1515: }
1516: return $result;
1.6 tsai 1517: }
1518:
1.283 albertel 1519: sub ordered_show_check {
1520: my $last_part=$Apache::inputtags::partlist[-2];
1521: my $in_order=
1522: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1523: my $in_order_show=1;
1524: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1525: $in_order_show=&Apache::response::check_status($last_part);
1526: }
1527: return $in_order_show;
1528: }
1529:
1.11 albertel 1530: sub start_part {
1.326 albertel 1531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1532: if (!$Apache::lonxml::metamode) {
1533: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1534: # duedates.
1535: }
1.159 albertel 1536: my $result='';
1.386 albertel 1537: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1538: $Apache::inputtags::part=$id;
1.177 albertel 1539: push(@Apache::inputtags::partlist,$id);
1540: @Apache::inputtags::response=();
1.159 albertel 1541: @Apache::inputtags::previous=();
1542: @Apache::inputtags::previous_version=();
1.405 albertel 1543: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1544: &Apache::response::reset_params();
1545:
1.159 albertel 1546: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1547: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1548: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1549: my $in_order_show=&ordered_show_check();
1.214 albertel 1550: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1551: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1552: &Apache::run::run($expression,$safeeval);
1.159 albertel 1553:
1554: if ($target eq 'meta') {
1.224 www 1555: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1556: return &Apache::response::mandatory_part_meta.
1557: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1558: } elsif ($target eq 'web' || $target eq 'grade' ||
1559: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1560: if ($hidden || !$in_order_show) {
1.326 albertel 1561: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1562: } else {
1563: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1564: push (@Apache::inputtags::status,$status);
1565: my $expression='$external::datestatus="'.$status.'";';
1566: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1567: &Apache::run::run($expression,$safeeval);
1.284 albertel 1568: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1569: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1570: }
1.216 albertel 1571: if (( $status eq 'CLOSED' ) ||
1572: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1573: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1574: ( $status eq 'BANNED') ||
1575: ( $status eq 'UNAVAILABLE') ||
1576: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1577: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1578: $style);
1.159 albertel 1579: if ( $target eq "web" ) {
1.211 albertel 1580: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1581: } elsif ( $target eq 'tex' ) {
1.284 albertel 1582: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1583: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1584: } else {
1.211 albertel 1585: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1586: }
1.159 albertel 1587: }
1588: } else {
1589: if ($target eq 'tex') {
1.284 albertel 1590: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1591: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1592: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1593: } else {
1594: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1595: }
1.195 sakharuk 1596: }
1.159 albertel 1597: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1598: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1599: my @allkeys = split /,/,$allkeys;
1600: my $allow_print_points = 0;
1601: foreach my $partial_key (@allkeys) {
1.230 albertel 1602: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1603: if ($1 ne '0') {$allow_print_points=1;}
1604: }
1605: }
1.275 albertel 1606: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1607: if (defined($maxtries) && $maxtries < 0) {
1608: $allow_print_points=0;
1609: }
1.302 albertel 1610: if (lc($env{'course.'.$env{'request.course.id'}.
1611: '.disableexampointprint'}) eq 'yes') {
1612: $allow_print_points=0;
1613: }
1.222 sakharuk 1614: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1615: } elsif ($target eq 'web') {
1.356 www 1616: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1617: }
1618: }
1619: }
1620: } elsif ($target eq 'edit') {
1621: $result.=&Apache::edit::tag_start($target,$token);
1622: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1623: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1624: ' '.
1625: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1626: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1627: } elsif ($target eq 'modified') {
1628: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1629: $safeeval,'id','display');
1.159 albertel 1630: if ($constructtag) {
1.225 albertel 1631: #limiting ids to only letters numbers, and space
1.224 www 1632: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1633: $result = &Apache::edit::rebuild_tag($token);
1634: }
1635: }
1636: return $result;
1.11 albertel 1637: }
1638:
1639: sub end_part {
1.159 albertel 1640: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1641: &Apache::lonxml::debug("in end_part $target ");
1642: my $status=$Apache::inputtags::status['-1'];
1643: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1644: my $in_order_show=&ordered_show_check();
1.321 albertel 1645: my $result;
1646: if (!$Apache::lonxml::metamode) {
1647: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1648: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1649: }
1.312 albertel 1650: if ($target eq 'grade') {
1.249 albertel 1651: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1652: !$hidden && $in_order_show) {
1.311 foxr 1653: $result.=&Apache::inputtags::grade;
1.249 albertel 1654: } else {
1655: # move any submission data to .hidden
1656: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1657: }
1.283 albertel 1658: } elsif (($target eq 'web' || $target eq 'tex') &&
1659: !$hidden && $in_order_show) {
1.159 albertel 1660: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1661: $target);
1.212 albertel 1662: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1663: $gradestatus='';
1664: }
1.311 foxr 1665: $result.=$gradestatus;
1.265 sakharuk 1666: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1667: } elsif ($target eq 'edit') {
1.311 foxr 1668: $result.=&Apache::edit::end_table();
1.322 albertel 1669: } elsif ($target eq 'modified') {
1670: $result .= $token->[2];
1.159 albertel 1671: }
1672: pop @Apache::inputtags::status;
1673: $Apache::inputtags::part='';
1.295 albertel 1674: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1675: return $result;
1.11 albertel 1676: }
1.1 albertel 1677:
1.25 albertel 1678: sub start_preduedate {
1.326 albertel 1679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1680: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1681: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1682: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1683: if (!$Apache::lonhomework::scantronmode &&
1684: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1685: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1686: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1687: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1688: }
1.24 albertel 1689: }
1.159 albertel 1690: return '';
1.24 albertel 1691: }
1692:
1.25 albertel 1693: sub end_preduedate {
1.159 albertel 1694: return '';
1.24 albertel 1695: }
1696:
1.369 foxr 1697: # In all the modes where <postanswerdate> text is
1698: # displayable, all we do is eat up the text between the start/stop
1699: # tags if the conditions are not right to display it.
1.25 albertel 1700: sub start_postanswerdate {
1.326 albertel 1701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1702: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1703: &Apache::lonnet::allowed('pav',
1704: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1705: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1706: $target eq 'tex' ) {
1.300 albertel 1707: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1708: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1709: (($target eq 'tex') && !$pav)) {
1.326 albertel 1710: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1711: }
1712: }
1713: return '';
1.24 albertel 1714: }
1715:
1.25 albertel 1716: sub end_postanswerdate {
1.159 albertel 1717: return '';
1.24 albertel 1718: }
1719:
1.25 albertel 1720: sub start_notsolved {
1.326 albertel 1721: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1722: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1723: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1724: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1725: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1726: if ($gradestatus =~ /^correct/ &&
1727: &Apache::response::show_answer()) {
1.159 albertel 1728: &Apache::lonxml::debug("skipping");
1.326 albertel 1729: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1730: }
1.24 albertel 1731: }
1.159 albertel 1732: return '';
1.24 albertel 1733: }
1734:
1.25 albertel 1735: sub end_notsolved {
1.159 albertel 1736: return '';
1.24 albertel 1737: }
1738:
1739: sub start_solved {
1.326 albertel 1740: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1741: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1742: $target eq 'tex') {
1743: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1744: if ($gradestatus !~ /^correct/ ||
1745: !&Apache::response::show_answer()) {
1.326 albertel 1746: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1747: }
1.24 albertel 1748: }
1.159 albertel 1749: return '';
1.24 albertel 1750: }
1751:
1752: sub end_solved {
1.248 albertel 1753: return '';
1754: }
1755:
1756: sub start_problemtype {
1.326 albertel 1757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1758: my $result;
1.339 albertel 1759: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1760: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1761: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1762: if (!defined($mode)) { $mode='show'; }
1763: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1764: my $found=0;
1765: foreach my $type (split(',',$for)) {
1766: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1767: }
1768: if ($mode eq 'show' && !$found) {
1.326 albertel 1769: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1770: }
1771: if ($mode eq 'hide' && $found) {
1.326 albertel 1772: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1773: }
1774: } elsif ($target eq 'edit') {
1775: $result .=&Apache::edit::tag_start($target,$token);
1776: $result.=&Apache::edit::select_arg('Mode:','mode',
1777: [['show','Show'],
1778: ['hide','Hide']]
1779: ,$token);
1780: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1781: [ ['exam','Exam/Quiz Problem'],
1782: ['survey','Survey'],
1783: ['problem','Homework Problem'] ]
1784: ,$token);
1785: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1786: } elsif ($target eq 'modified') {
1787: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1788: $safeeval,'mode','for');
1789: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1790: }
1791: return $result;
1792: }
1793:
1794: sub end_problemtype {
1.159 albertel 1795: return '';
1.24 albertel 1796: }
1.34 albertel 1797:
1798: sub start_startouttext {
1.159 albertel 1799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1800: my @result=(''.'');
1801: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1802:
1803: my $nesting =
1804: &Apache::lonxml::set_state('outtext',
1805: &Apache::lonxml::get_state('outtext')+1);
1806: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1807: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1808: }
1.159 albertel 1809: return (@result);
1.34 albertel 1810: }
1.159 albertel 1811:
1.34 albertel 1812: sub end_startouttext {
1.326 albertel 1813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1814: my $result='';
1815: my $text='';
1816:
1817: if ($target eq 'edit') {
1.326 albertel 1818: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1819: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1820: <td>".&mt('Delete:').
1.159 albertel 1821: &Apache::edit::deletelist($target,$token)
1822: ."</td>
1.42 albertel 1823: <td>".
1.159 albertel 1824: &Apache::edit::insertlist($target,$token).
1.362 albertel 1825: '</td><td align="right" valign="top">' .
1826: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1827: &Apache::edit::end_row().
1.362 albertel 1828: &Apache::edit::start_spanning_row()."\n".
1.255 www 1829: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1830: }
1831: if ($target eq 'modified') {
1.219 albertel 1832: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1833: }
1834: if ($target eq 'tex') {
1835: $result .= '\noindent ';
1836: }
1837: return $result;
1.34 albertel 1838: }
1.159 albertel 1839:
1.34 albertel 1840: sub start_endouttext {
1.159 albertel 1841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1842: my $result='';
1843: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1844: if ($target eq "modified") {
1845: $result='<endouttext />'.
1.377 albertel 1846: &Apache::edit::handle_insertafter('startouttext');
1847: }
1.404 albertel 1848:
1849: my $nesting =
1850: &Apache::lonxml::set_state('outtext',
1851: &Apache::lonxml::get_state('outtext')-1);
1852: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1853: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1854: &Apache::lonxml::set_state('outtext', 0);
1855: }
1.159 albertel 1856: return $result;
1.34 albertel 1857: }
1.159 albertel 1858:
1.34 albertel 1859: sub end_endouttext {
1.159 albertel 1860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1861: my @result=('','');
1862: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1863: return (@result);
1.34 albertel 1864: }
1.159 albertel 1865:
1.45 albertel 1866: sub delete_startouttext {
1.326 albertel 1867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1868: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1869: my $text=$$parser['-1']->get_text("/endouttext");
1870: my $ntoken=$$parser['-1']->get_token();
1871: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1872: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1873: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1874: # they did the last time round
1875: &Apache::lonxml::increasedepth($ntoken);
1876: &Apache::lonxml::decreasedepth($ntoken);
1877: return 1;
1.193 www 1878: }
1879:
1880: sub start_simpleeditbutton {
1881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1882: my $result='';
1.284 albertel 1883: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1884: ($target eq 'web') &&
1.330 albertel 1885: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1886: my $url=$env{'request.noversionuri'};
1.193 www 1887: $url=~s/\?.*$//;
1.367 albertel 1888: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1889: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1890: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1891: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1892: }
1893: return $result;
1894: }
1895:
1896: sub end_simpleeditbutton {
1897: return '';
1.45 albertel 1898: }
1.34 albertel 1899:
1.1 albertel 1900: 1;
1901: __END__
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