Annotation of loncom/homework/structuretags.pm, revision 1.408
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.408 ! albertel 4: # $Id: structuretags.pm,v 1.407 2007/10/30 00:17:09 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 .= $help;
1.159 albertel 199: }
1.344 albertel 200: }
201:
202: if (!defined($found{'body'})) {
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" />
! 320: </div>
! 321: '.
1.282 albertel 322: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 323: }
324:
325: sub problem_edit_footer {
1.210 albertel 326: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 327: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 328: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 329: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 330: }
331:
1.235 albertel 332: sub option {
333: my ($value,$name) = @_;
334: my $result ="<option value='".$value."' ";
1.284 albertel 335: if ($env{'form.'.$name} eq $value) {
1.235 albertel 336: $result.=" selected='on' ";
337: }
338: $result.='>';
339: return $result;
340: }
341:
1.105 albertel 342: sub problem_web_to_edit_header {
1.159 albertel 343: my ($rndseed)=@_;
1.406 albertel 344: my $result .= '<div class="LC_edit_problem_header">';
345:
346: if (!$Apache::lonhomework::parsing_a_task) {
347: $result .=
348: '<div class="LC_edit_problem_header_title">'.
349: &mt('Problem Testing').
350: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
351: '</div>';
352: } else {
353: $result .=
354: '<div class="LC_edit_problem_header_title">'.
355: &mt('Task Testing').
356: '</div>';
357: }
358:
1.315 albertel 359: my $show_all_foils_text =
360: ($Apache::lonhomework::parsing_a_task) ?
361: &mt(' Show All Instances')
362: : &mt(' Show All Foils');
363:
1.406 albertel 364: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
365: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
366: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
367:
368:
1.384 albertel 369:
1.406 albertel 370: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 371: if (!$Apache::lonhomework::parsing_a_task) {
372: $result.="
1.406 albertel 373: <div class='LC_edit_problem_header_row1'>
374: <span class=\"LC_nobreak\">
1.405 albertel 375: ".&mt("Problem Status:")."
1.235 albertel 376: <select name='problemstate'>
1.270 albertel 377: <option value=''></option>
1.235 albertel 378: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
379: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
380: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
381: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
382: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
383: </select>
1.406 albertel 384: </span>
385: <span class=\"LC_nobreak\">
1.405 albertel 386: ".&mt("Problem Type:")."
1.235 albertel 387: <select name='problemtype'>
1.270 albertel 388: <option value=''></option>
1.242 albertel 389: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
390: ".&option('problem','problemtype').&mt("Homework problem")."</option>
391: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 392: </select>
1.406 albertel 393: </span>
394: $show_all
395: </div>
396: <div class='LC_edit_problem_header_row2'>
397: <span class=\"LC_nobreak\">
1.405 albertel 398: ".&mt("Feedback Mode:")."
1.235 albertel 399: <select name='problemstatus'>
400: <option value=''></option>
1.242 albertel 401: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 402: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
403: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 404: </select>
1.406 albertel 405: </span>
406: ";
407:
1.376 albertel 408: } elsif ($Apache::lonhomework::parsing_a_task) {
409: $result.="
1.406 albertel 410: <div class='LC_edit_problem_header_row1'>
411: <span class=\"LC_nobreak\">
1.405 albertel 412: ".&mt("Problem Status:")."
1.376 albertel 413: <select name='problemstate'>
414: <option value=''></option>
415: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
416: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
417: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
418: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
419: </select>
1.406 albertel 420: </span>
421: $show_all
422: ";
423: }
424:
425: $result.='
426: <span class="LC_nobreak">
427: '.&mt('Apply style file: ').'
428: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
429: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
430: </span>
431: </div>
432: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
433: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
434: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
435: </div>
436: <hr class="LC_edit_problem_divide" />
437: <div class="LC_edit_problem_header_randomize_row">
438: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
439: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
440: <input type="text" name="rndseed" size="10" value="'.
441: $rndseed.'"
442: onchange="javascript:document.lonhomework.changerandseed.click()" />';
443:
444: if (!$Apache::lonhomework::parsing_a_task) {
445: my $numtoanalyze=$env{'form.numtoanalyze'};
446: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 ! albertel 447: $result .= '<span class="LC_nobreak">'.
! 448: &mt('[_1] for [_2] versions.',
! 449: '<input type="submit" name="problemmode" value='.&mt('"Calculate answers').'" />',
! 450: '<input type="text" name="numtoanalyze" value="'.
! 451: $numtoanalyze.'" size="5" />').
! 452: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
! 453: '</span>';
! 454:
1.313 albertel 455: }
1.406 albertel 456:
457: $result.='
458: </div>
1.408 ! albertel 459: <div class="LC_edit_problem_header_edit_row">';
! 460: $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
! 461: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
! 462: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />';
! 463:
! 464: $result.='
! 465: </div>
1.406 albertel 466: </div>';
1.159 albertel 467: return $result;
1.48 albertel 468: }
469:
1.65 albertel 470: sub initialize_storage {
1.357 albertel 471: my ($given_symb) = @_;
1.353 albertel 472: undef(%Apache::lonhomework::results);
473: undef(%Apache::lonhomework::history);
1.357 albertel 474: my ($symb,$courseid,$domain,$name) =
1.367 albertel 475: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 476:
477: # anonymous users (CODEd exams) have no data
478: if ($name eq 'anonymous'
479: && !defined($domain)) {
480: return;
481: }
482:
1.333 albertel 483: if ($env{'request.state'} eq 'construct'
484: || $symb eq ''
485: || $Apache::lonhomework::type eq 'practice') {
486:
487: my $namespace = $symb || $env{'request.uri'};
488: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 489: ($env{'form.resetdata'} eq &mt('New Problem Variation')
490: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 491: $env{'form.newrandomization'} eq &mt('New Randomization')) {
492: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
493: &Apache::lonxml::debug("Attempt reset");
494: }
1.159 albertel 495: %Apache::lonhomework::history=
1.333 albertel 496: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 497: my ($temp)=keys %Apache::lonhomework::history ;
498: &Apache::lonxml::debug("Return message of $temp");
499: } else {
500: %Apache::lonhomework::history=
501: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
502: }
1.353 albertel 503:
1.159 albertel 504: #ignore error conditions
1.67 albertel 505: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 506: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 507: }
508:
509: # -------------------------------------------------------------finalize_storage
510: # Stores away the result has to a student's environment
511: # checks form.grade_ for specific values, other wises stores
512: # to the running users environment
1.285 raeburn 513: # Will increment totals for attempts, students, and corrects
514: # if running user has student role.
1.65 albertel 515: sub finalize_storage {
1.357 albertel 516: my ($given_symb) = @_;
1.159 albertel 517: my $result;
1.289 albertel 518: if (%Apache::lonhomework::results) {
1.323 albertel 519: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
520: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 521: my ($symb,$courseid,$domain,$name) =
1.367 albertel 522: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 523: if ($env{'request.state'} eq 'construct'
524: || $symb eq ''
525: || $Apache::lonhomework::type eq 'practice') {
526: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 527: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 528: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 529: $namespace,'',$domain,$name);
1.159 albertel 530: &Apache::lonxml::debug('Construct Store return message:'.$result);
531: } else {
532: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
533: $symb,$courseid,$domain,$name);
534: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 535: if ($env{'request.role'} =~/^st/) {
536: &store_aggregates($symb,$courseid);
537: }
1.159 albertel 538: }
1.323 albertel 539: } else {
540: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 541: }
1.159 albertel 542: return $result;
1.65 albertel 543: }
544:
1.285 raeburn 545: # -------------------------------------------------------------store_aggregates
546: # Sends hash of values to be incremented in nohist_resourcetracker.db
547: # for the course. Increments total number of attempts, unique students
548: # and corrects for each part for an instance of a problem, as appropriate.
549: sub store_aggregates {
550: my ($symb,$courseid) = @_;
1.286 albertel 551: my %aggregate;
552: my @parts;
1.288 albertel 553: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
554: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 555: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 556: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 557: push(@parts, $1);
1.285 raeburn 558: }
559: }
1.286 albertel 560: foreach my $part (@parts) {
561: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
562: eq 'APPROX_ANS' ||
563: $Apache::lonhomework::results{'resource.'.$part.'.award'}
564: eq 'EXACT_ANS') {
1.287 albertel 565: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 566: }
1.286 albertel 567: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 568: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 569: } else {
1.293 albertel 570: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 571: if ($last_reset) {
1.293 albertel 572: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 573: $aggregate{$symb."\0".$part."\0users"} = 1;
574: }
575: }
1.285 raeburn 576: }
1.287 albertel 577: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 578: }
1.292 raeburn 579: if (keys (%aggregate) > 0) {
1.289 albertel 580: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 581: $cdomain,$cname);
582: }
583: }
1.289 albertel 584:
1.65 albertel 585: sub checkout_msg {
1.211 albertel 586: my %lt=&Apache::lonlocal::texthash(
587: 'resource'=>'The resource needs to be checked out',
588: '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.',
589: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
590: 'checkout'=>'Check out Exam for Viewing',
591: 'checkout?'=>'Check out Exam?');
1.352 albertel 592: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 593: return (<<ENDCHECKOUT);
1.211 albertel 594: <h2>$lt{'resource'}</h2>
595: <p>$lt{'id_expln'}</p>
596: <font color="red">
597: <p>$lt{'warning'}</p>
1.91 albertel 598: </font>
1.352 albertel 599: <form name="checkout" method="POST" action="$uri">
1.91 albertel 600: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 601: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 602: </form>
603: ENDCHECKOUT
604: }
605:
1.252 albertel 606: sub firstaccess_msg {
1.253 albertel 607: my ($time,$symb)=@_;
608: my ($map)=&Apache::lonnet::decode_symb($symb);
609: my $foldertitle=&Apache::lonnet::gettitle($map);
610: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 611: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 612: return (<<ENDCHECKOUT);
1.253 albertel 613: <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 614: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 615: <input type="hidden" name="markaccess" value="yes" />
616: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
617: </form>
618: ENDCHECKOUT
619: }
620:
1.204 albertel 621: sub init_problem_globals {
622: my ($type)=@_;
623: #initialize globals
1.308 foxr 624: # For problems, we start out in part 0 (outside a <part> tag).
625: # and part 0 is used to describe the main body of the <problem>
626: #
1.204 albertel 627: if ($type eq 'problem') {
628: $Apache::inputtags::part='0';
629: @Apache::inputtags::partlist=('0');
1.405 albertel 630: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 631: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 632:
1.266 albertel 633: } elsif ($type eq 'library') {
1.204 albertel 634: $Apache::inputtags::part='';
635: @Apache::inputtags::partlist=();
1.405 albertel 636: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 637: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 638:
1.304 albertel 639: } elsif ($type eq 'Task') {
640: $Apache::inputtags::part='0';
641: @Apache::inputtags::partlist=('0');
1.405 albertel 642: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 643: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 644: }
645: @Apache::inputtags::responselist = ();
646: @Apache::inputtags::importlist = ();
647: @Apache::inputtags::previous=();
648: @Apache::inputtags::previous_version=();
649: $Apache::structuretags::printanswer='No';
650: @Apache::structuretags::whileconds=();
651: @Apache::structuretags::whilebody=();
652: @Apache::structuretags::whileline=();
653: $Apache::lonhomework::scantronmode=0;
654: undef($Apache::lonhomework::name);
1.358 albertel 655: undef($Apache::lonhomework::default_type);
656: undef($Apache::lonhomework::type);
1.204 albertel 657: }
658:
659: sub reset_problem_globals {
660: my ($type)=@_;
661: undef(%Apache::lonhomework::history);
662: undef(%Apache::lonhomework::results);
663: undef($Apache::inputtags::part);
1.208 albertel 664: #don't undef this, lonhomework.pm takes care of this, we use this to
665: #detect if we try to do 2 problems in one file
666: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 667: undef($Apache::lonhomework::name);
1.358 albertel 668: undef($Apache::lonhomework::default_type);
669: undef($Apache::lonhomework::type);
670: undef($Apache::lonhomework::scantronmode);
671: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 672: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 673: }
674:
1.241 albertel 675: sub set_problem_state {
1.240 albertel 676: my ($part)=@_;
1.284 albertel 677: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 678: $Apache::lonhomework::history{"resource.$part.solved"}=
679: 'correct_by_student';
680: }
681: }
682:
1.241 albertel 683: sub get_problem_status {
684: my ($part)=@_;
1.267 albertel 685: my $problem_status;
1.284 albertel 686: if ($env{'request.state'} eq 'construct' &&
687: defined($env{'form.problemstatus'})) {
688: $problem_status=$env{'form.problemstatus'};
1.267 albertel 689: } else {
690: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
691: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 692: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 693: }
694: return $problem_status;
695: }
696:
1.9 albertel 697: sub start_problem {
1.326 albertel 698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 699:
1.311 foxr 700: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 701: if (!$Apache::lonxml::metamode) {
702: &Apache::lonxml::startredirection();
703: }
1.311 foxr 704:
1.308 foxr 705: # Problems don't nest and we don't allow more than one <problem> in
706: # a .problem file.
707: #
1.184 albertel 708: if ( $Apache::inputtags::part ne '' ||
709: $Apache::lonhomework::parsing_a_problem) {
710: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 711: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 712: return '';
713: }
1.184 albertel 714:
715: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 716: &init_problem_globals('problem');
1.166 albertel 717:
1.284 albertel 718: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 719: $Apache::lonhomework::scantronmode=1;
720: }
1.161 albertel 721:
1.159 albertel 722: if ($target ne 'analyze') {
723: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 724: if (($env{'request.state'} eq 'construct') &&
725: defined($env{'form.problemtype'})) {
726: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 727: }
1.332 albertel 728: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 729: }
1.164 albertel 730: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 731: my $uri=$env{'request.uri'};
1.159 albertel 732: if ($uri=~/\.(\w+)$/) {
733: $Apache::lonhomework::type=$1;
734: &Apache::lonxml::debug("Using type of $1");
735: } else {
736: $Apache::lonhomework::type='problem';
737: &Apache::lonxml::debug("Using default type, problem, :$uri:");
738: }
1.87 albertel 739: }
1.301 albertel 740: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 741:
1.363 albertel 742: &initialize_storage();
1.389 albertel 743: if ($target ne 'analyze'
744: && $env{'request.state'} eq 'construct') {
745: &set_problem_state('0');
746: }
747:
1.366 albertel 748: if ($target eq 'web') {
749: &Apache::lonxml::debug(" grading history ");
750: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
751: }
1.363 albertel 752:
1.159 albertel 753: #added vars to the scripting enviroment
1.213 albertel 754: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 755: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 756: &Apache::run::run($expression,$safeeval);
1.159 albertel 757: my $status;
758: my $accessmsg;
759:
1.343 albertel 760: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 761: my ($result,$form_tag_start);
1.354 albertel 762: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
763: || $target eq 'edit') {
1.350 albertel 764: ($result,$form_tag_start) =
765: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
766: $name);
767: }
768:
1.284 albertel 769: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 770:
771: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
772: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
773: $target eq 'tex') {
774: #handle exam checkout
775: if ($Apache::lonhomework::type eq 'exam') {
776: my $token=
777: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 778: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 779: $token=&Apache::lonxml::maketoken();
780: $Apache::lonhomework::history{"resource.0.outtoken"}=
781: $token;
782: }
1.343 albertel 783: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 784: }
1.284 albertel 785: if ($env{'form.markaccess'}) {
1.252 albertel 786: &Apache::lonnet::set_first_access('map');
787: }
1.159 albertel 788: #handle rand seed in construction space
789: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 790: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 791: if ($env{'request.state'} ne "construct" &&
792: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 793: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
794: $rndseed.'" />'.
795: '<input type="submit" name="resetdata"
1.334 albertel 796: value="'.&mt('New Problem Variation').'" />';
797: if (exists($env{'form.username'})) {
798: $form_tag_start.=
1.164 albertel 799: '<input type="hidden" name="username"
1.284 albertel 800: value="'.$env{'form.username'}.'" />';
1.334 albertel 801: }
1.333 albertel 802: if ($env{'request.role.adv'}) {
1.267 albertel 803: $form_tag_start.=
1.300 albertel 804: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 805: if (defined($env{'form.showallfoils'})) {
1.267 albertel 806: $form_tag_start.='checked="on"';
807: }
1.300 albertel 808: $form_tag_start.= ' />'.&mt(' Show All Foils').
809: '</label>';
1.267 albertel 810: }
811: $form_tag_start.='<hr />';
1.162 albertel 812: }
1.324 albertel 813:
814: ($status,$accessmsg,my $slot_name,my $slot) =
815: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 816: push (@Apache::inputtags::status,$status);
1.324 albertel 817:
1.159 albertel 818: my $expression='$external::datestatus="'.$status.'";';
819: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
820: &Apache::run::run($expression,$safeeval);
821: &Apache::lonxml::debug("Got $status");
1.324 albertel 822:
1.159 albertel 823: if (( $status eq 'CLOSED' ) ||
824: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 825: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 826: ( $status eq 'BANNED') ||
1.216 albertel 827: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 828: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 829: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 830: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
831: $style);
1.159 albertel 832: if ( $target eq "web" ) {
1.343 albertel 833: my $msg;
1.159 albertel 834: if ($status eq 'UNAVAILABLE') {
1.245 albertel 835: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 836: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 837: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 838: }
1.216 albertel 839: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 840: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 841: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 842: $msg.=&checkout_msg();
1.252 albertel 843: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 844: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 845: } elsif ($status eq 'NOT_IN_A_SLOT') {
846: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 847: }
848: $result.=$msg.'<br />';
849: } elsif ($target eq 'tex') {
1.332 albertel 850: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
851: : '\begin{minipage}{\textwidth}';
852: $result.='\begin{document}\noindent \vskip 1 mm '.
853: $startminipage.'\vskip 0 mm';
1.159 albertel 854: if ($status eq 'UNAVAILABLE') {
1.211 albertel 855: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 856: } else {
1.211 albertel 857: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 858: }
859: }
1.324 albertel 860: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 861: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
862: $style);
1.324 albertel 863: if ($target eq 'web') {
1.375 albertel 864: $result .=
865: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 866: } elsif ($target eq 'grade') {
867: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
868: 'problem');
869: }
1.159 albertel 870: } elsif ($target eq 'web') {
1.360 albertel 871: if ($status eq 'CAN_ANSWER'
872: && $slot_name ne ''
873: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
874: # unproctored slot access, self checkin
875: &Apache::bridgetask::check_in('problem',undef,undef,
876: $slot_name);
877: }
1.368 albertel 878: $result.="\n $form_tag_start \t".
1.227 albertel 879: '<input type="hidden" name="submitted" value="yes" />';
880: # create a page header and exit
1.284 albertel 881: if ($env{'request.state'} eq "construct") {
882: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 883: }
884: # if we are viewing someone else preserve that info
1.284 albertel 885: if (defined $env{'form.grade_symb'}) {
1.227 albertel 886: foreach my $field ('symb','courseid','domain','username') {
887: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 888: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 889: }
890: }
891: } elsif ($target eq 'tex') {
1.319 foxr 892: $result .= 'INSERTTEXFRONTMATTERHERE';
893:
1.99 sakharuk 894: }
1.159 albertel 895: } elsif ($target eq 'edit') {
1.343 albertel 896: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 897: $Apache::lonxml::warnings_error_header=
898: &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 899: my $temp=&Apache::edit::insertlist($target,$token);
900: $result.=$temp;
901: } elsif ($target eq 'modified') {
902: $result=$token->[4];
903: } else {
904: # page_start returned a starting result, delete it if we don't need it
905: $result = '';
1.99 sakharuk 906: }
1.159 albertel 907: return $result;
1.9 albertel 908: }
909:
910: sub end_problem {
1.159 albertel 911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 912: my $result;
1.310 foxr 913:
1.321 albertel 914: if (!$Apache::lonxml::metamode) {
915: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 916: $Apache::lonxml::post_evaluate=0;
1.321 albertel 917: }
1.319 foxr 918:
919: if ($target eq 'tex') {
1.321 albertel 920: # Figure out the front matter and replace the
921: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
922: # this in end_problem because whether or not we display due
923: # dates depends on whether due dates have already been
924: # displayed in the problem parts.
925:
1.319 foxr 926: my $frontmatter = '';
927: my $startminipage = '';
928: if (not $env{'form.problem_split'}=~/yes/) {
929: $startminipage = '\begin{minipage}{\textwidth}';
930: }
931: my $id = $Apache::inputtags::part;
932: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
933: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
934: my @packages = split /,/,$packages;
935: my $allow_print_points = 0;
936: foreach my $partial_key (@packages) {
937: if ($partial_key=~m/^part_0$/) {
938: $allow_print_points=1;
939: }
940: }
941: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
942: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
943: if (lc($env{'course.'.$env{'request.course.id'}.
944: '.disableexampointprint'}) eq 'yes') {
945: $allow_print_points=0;
946: }
947: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
948: 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 ';
949: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
950: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
951:
952: # Figure out what the due date is and if we need to print
953: # it in the problem header. We have been logging the
954: # last due date written to file.
955:
956: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
957: my $duedate = POSIX::strftime("%c",localtime($duetime));
958: my $temp_file;
959: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
960:
961: # Figure out what the last printed due date is or set it
962: # to the epoch if no duedates have been printed.
963:
964: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
965: if (-e $filename) {
966: $temp_file = Apache::File->new($filename);
967: my @due_file = <$temp_file>;
968: $due_file_content = $due_file[$#due_file];
969: chomp $due_file_content;
970: }
971:
972: # We display the due date iff it is not the same as the last
973: # duedate in problem header ($due_file_content), and
974: # none of our parts displayed a duedate.
975: #
976: my $parts_with_displayduedate;
977: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
978: $parts_with_displayduedate =
979: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
980: } else {
981: $parts_with_displayduedate = 0;
982: }
983: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
984: $temp_file = Apache::File->new('>'.$filename);
985: print $temp_file "$duetime\n";
986: if (not $env{'request.symb'} =~ m/\.page_/) {
987: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
988: $frontmatter .= $begin_doc.
989: '\textit{Due date: '.$duedate.'} '.$toc_line;
990: } else {
991: $frontmatter.= $begin_doc.$toc_line;
992: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
993: }
994: } else {
1.381 albertel 995: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 996: }
997: } else {
998: if (not $env{'request.symb'} =~ m/\.page_/) {
999: $frontmatter .= $begin_doc.$toc_line;
1000: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1001: } else {
1.381 albertel 1002: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1003: }
1004: }
1005: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1006: }
1007:
1.159 albertel 1008: my $status=$Apache::inputtags::status['-1'];
1009: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1010: $target eq 'tex') {
1.249 albertel 1011: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1012: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1013: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1014: &Apache::inputtags::grade;
1.324 albertel 1015: } elsif ($status eq 'NEEDS_CHECKIN') {
1016: # no need to grade, and don't want to hide data
1.249 albertel 1017: } else {
1018: # move any submission data to .hidden
1019: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1020: }
1.159 albertel 1021: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1022: $Apache::inputtags::part eq '0' &&
1.252 albertel 1023: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1024: # if part is zero, no <part>s existed, so we need show the current
1025: # grading status
1026: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1027: $result.= $gradestatus;
1028: }
1029: if (
1.284 albertel 1030: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1031: ($target eq 'answer') || ($target eq 'tex')
1032: ) {
1.227 albertel 1033: if ($target ne 'tex' &&
1.284 albertel 1034: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1035: $result.="</form>";
1.348 albertel 1036: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1037: }
1038: if ($target eq 'web') {
1.346 albertel 1039: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1040: } elsif ($target eq 'tex') {
1.178 sakharuk 1041: my $endminipage = '';
1.284 albertel 1042: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1043: $endminipage = '\end{minipage}';
1044: }
1.284 albertel 1045: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1046: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1047: } else {
1.262 sakharuk 1048: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1049: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1050: $result .= $endminipage.'\end{document} ';
1051: } else {
1.382 albertel 1052: $result .= $endminipage;
1.262 sakharuk 1053: }
1.159 albertel 1054: }
1055: }
1056: }
1057: if ($target eq 'grade') {
1058: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1059: &finalize_storage();
1060: }
1.284 albertel 1061: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1062: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1063: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1064: # normally we get it from above, but in CSTR
1.172 albertel 1065: # we always show answer mode too.
1.159 albertel 1066: }
1067: } elsif ($target eq 'meta') {
1068: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1069: @Apache::inputtags::response=();
1.159 albertel 1070: $result=&Apache::response::mandatory_part_meta;
1071: }
1.215 albertel 1072: $result.=&Apache::response::meta_part_order();
1.258 albertel 1073: $result.=&Apache::response::meta_response_order();
1.159 albertel 1074: } elsif ($target eq 'edit') {
1075: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1076: $result .= &problem_edit_footer();
1.320 albertel 1077: } elsif ($target eq 'modified') {
1078: $result .= $token->[2];
1.159 albertel 1079: }
1.155 albertel 1080:
1.284 albertel 1081: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1082: &Apache::inputtags::check_for_duplicate_ids();
1083: }
1.204 albertel 1084:
1085: &reset_problem_globals('problem');
1.159 albertel 1086:
1087: return $result;
1.48 albertel 1088: }
1089:
1.108 albertel 1090:
1.48 albertel 1091: sub start_library {
1.159 albertel 1092: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1093: my ($result,$form_tag_start);
1.371 albertel 1094: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1095: &init_problem_globals('library');
1096: $Apache::lonhomework::type='problem';
1097: }
1.159 albertel 1098: if ($target eq 'edit') {
1.343 albertel 1099: ($result,$form_tag_start)=
1100: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1101: 'Edit');
1102: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1103: my $temp=&Apache::edit::insertlist($target,$token);
1104: $result.=$temp;
1105: } elsif ($target eq 'modified') {
1106: $result=$token->[4];
1.340 albertel 1107: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1108: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1109: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1110: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1111: ($result,$form_tag_start)=
1112: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1113: $name);
1.159 albertel 1114: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1115: $result.=" \n $form_tag_start".
1.159 albertel 1116: '<input type="hidden" name="submitted" value="yes" />';
1117: $result.=&problem_web_to_edit_header($rndseed);
1118: }
1119: return $result;
1.48 albertel 1120: }
1121:
1122: sub end_library {
1.159 albertel 1123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1124: my $result='';
1125: if ($target eq 'edit') {
1126: $result=&problem_edit_footer();
1.371 albertel 1127: } elsif ($target eq 'web'
1128: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1129: && $env{'request.state'} eq "construct") {
1.349 albertel 1130: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1131: }
1.371 albertel 1132: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1133: &reset_problem_globals('library');
1134: }
1.159 albertel 1135: return $result;
1.197 www 1136: }
1137:
1138: sub start_definetag {
1.326 albertel 1139: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1140:
1141: my $result;
1142:
1143: my $name = $token->[2]->{'name'};
1.326 albertel 1144: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1145: if ($target eq 'web') {
1146: if ($name=~/^\//) {
1147: $result=
1148: '<br /><table class="LC_sty_end"><tr><th>'.
1149: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1150: } else {
1151: $result=
1152: '<br /><table class="LC_sty_begin"><tr><th>'.
1153: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1154: }
1155: $skip = &HTML::Entities::encode($skip, '<>&"');
1156: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1157: }
1158: return $result;
1159: }
1160:
1161: sub end_definetag {
1162: return '';
1.1 albertel 1163: }
1164:
1165: sub start_block {
1.201 albertel 1166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1167:
1168: my $result;
1.1 albertel 1169:
1.339 albertel 1170: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1171: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1172: my $code = $token->[2]->{'condition'};
1.385 albertel 1173: if (defined($code) && $code ne '') {
1.137 albertel 1174: if (!$Apache::lonxml::default_homework_loaded) {
1175: &Apache::lonxml::default_homework_load($safeeval);
1176: }
1.131 albertel 1177: $result = &Apache::run::run($code,$safeeval);
1178: &Apache::lonxml::debug("block :$code: returned :$result:");
1179: } else {
1180: $result='1';
1181: }
1182: if ( ! $result ) {
1.201 albertel 1183: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1184: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1185: }
1186: $result='';
1187: } elsif ($target eq 'edit') {
1188: $result .=&Apache::edit::tag_start($target,$token);
1189: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1190: $token,40);
1191: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1192: } elsif ($target eq 'modified') {
1193: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1194: $safeeval,'condition');
1195: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1196: }
1.131 albertel 1197: return $result;
1.1 albertel 1198: }
1199:
1200: sub end_block {
1.167 www 1201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1202: my $result;
1203: if ($target eq "edit") {
1204: $result.= &Apache::edit::tag_end($target,$token,'');
1205: }
1206: return $result;
1207: }
1208:
1209: sub start_languageblock {
1.201 albertel 1210: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1211:
1212: my $result;
1213:
1.339 albertel 1214: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1215: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1216: my $include = $token->[2]->{'include'};
1217: my $exclude = $token->[2]->{'exclude'};
1.398 www 1218: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1219: # This should not even happen, since we should at least have the server language
1.398 www 1220: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1221: # Now loop over all languages in order of preference
1222: foreach my $preferred_language (@preferred_languages) {
1.394 www 1223: # If the languageblock has no arguments, show the contents
1.399 www 1224: $result=1;
1225: my $found=0;
1.394 www 1226: # Do we have an include argument?
1.398 www 1227: if ($include) {
1.394 www 1228: # If include is specified, by default, don't render the block
1.399 www 1229: $result=0;
1.398 www 1230: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1231: # ... but if my preferred language is included, render it
1.398 www 1232: if ($included_language eq $preferred_language) {
1.399 www 1233: $result=1;
1234: $found=1;
1.398 www 1235: }
1236: }
1237: }
1.394 www 1238: # Do we have an exclude argument?
1.398 www 1239: if ($exclude) {
1.399 www 1240: $result=1;
1.398 www 1241: foreach my $excluded_language (split(/\,/,$exclude)) {
1242: if ($excluded_language eq $preferred_language) {
1.399 www 1243: $result=0;
1244: $found=1;
1.398 www 1245: }
1246: }
1247: }
1.399 www 1248: if ($found) { last; }
1.398 www 1249: }
1.201 albertel 1250: if ( ! $result ) {
1251: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1252: $style);
1253: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1254: }
1255: $result='';
1.167 www 1256: } elsif ($target eq 'edit') {
1257: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1258: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1259: $token,40);
1.211 albertel 1260: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1261: $token,40);
1262: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1263: } elsif ($target eq 'modified') {
1264: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1265: $safeeval,'include',
1266: 'exclude');
1.167 www 1267: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1268: }
1269: return $result;
1270: }
1271:
1272: sub end_languageblock {
1.170 www 1273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1274: my $result;
1.201 albertel 1275: if ($target eq "edit") {
1.170 www 1276: $result.= &Apache::edit::tag_end($target,$token,'');
1277: }
1278: return $result;
1279: }
1280:
1.397 albertel 1281: {
1282: my %available_texts;
1283: sub start_translated {
1284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1285: &Apache::lonxml::register('Apache::structuretags',('lang'));
1286: undef(%available_texts);
1287: }
1288:
1289: sub end_translated {
1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1291: my $result;
1292: #show the translation on viewable targets
1293: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1294: # or non-viewable targets, if it's embedded in something that
1295: # wants the output
1296: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1297: && &Apache::lonxml::in_redirection() ) ) {
1298: my @possibilities = keys(%available_texts);
1299: my $which =
1300: &Apache::loncommon::languages(\@possibilities) || 'default';
1301: $result = $available_texts{$which};
1302: }
1303: undef(%available_texts);
1304: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1305: return $result;
1306: }
1307:
1308:
1309: sub start_lang {
1310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1311: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1312: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1313: &Apache::lonxml::startredirection();
1314: }
1315: return '';
1316: }
1317:
1318: sub end_lang {
1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1320: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1321: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1322: my $result = &Apache::lonxml::endredirection();
1323: my $which = &Apache::lonxml::get_param('which',$parstack,
1324: $safeeval);
1325: $available_texts{$which} = $result;
1326: }
1327: return '';
1328: }
1329: }
1330:
1.170 www 1331: sub start_instructorcomment {
1.201 albertel 1332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1333:
1334: my $result;
1335:
1.339 albertel 1336: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1337: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1338: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1339: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1340: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1341: $parser,$style);
1.170 www 1342: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1343: }
1344: $result='';
1345: } elsif ($target eq 'edit') {
1346: $result .=&Apache::edit::tag_start($target,$token);
1347: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1348: }
1349: return $result;
1350: }
1351:
1352: sub end_instructorcomment {
1.159 albertel 1353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1354: my $result;
1355: if ($target eq "edit") {
1356: $result.= &Apache::edit::tag_end($target,$token,'');
1357: }
1358: return $result;
1.4 tsai 1359: }
1360:
1361: sub start_while {
1.326 albertel 1362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1363:
1.160 albertel 1364: my $result;
1.339 albertel 1365: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1366: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1367: my $code = $token->[2]->{'condition'};
1.4 tsai 1368:
1.160 albertel 1369: push( @Apache::structuretags::whileconds, $code);
1370: if (!$Apache::lonxml::default_homework_loaded) {
1371: &Apache::lonxml::default_homework_load($safeeval);
1372: }
1373: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1374: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1375: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1376: push( @Apache::structuretags::whileline, $token->[5]);
1377: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1378: if ( $result ) {
1379: &Apache::lonxml::newparser($parser,\$bodytext);
1380: }
1381: } elsif ($target eq 'edit') {
1382: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1383: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1384: $token,40);
1385: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1386: } elsif ($target eq 'modified') {
1387: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1388: $safeeval,'condition');
1389: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1390: }
1.160 albertel 1391: return $result;
1.4 tsai 1392: }
1393:
1394: sub end_while {
1.159 albertel 1395: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1396: my $result;
1397:
1.339 albertel 1398: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1399: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1400: my $code = pop(@Apache::structuretags::whileconds);
1401: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1402: my $line = pop(@Apache::structuretags::whileline);
1403: my $return = &Apache::run::run($code,$safeeval);
1404: my $starttime=time;
1405: my $error=0;
1406: while ($return) {
1407: if (time-$starttime >
1408: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1409: $return = 0; $error=1; next;
1.161 albertel 1410: }
1411: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1412: if ($target eq 'grade' || $target eq 'answer' ||
1413: $target eq 'analyze') {
1414: # grade/answer/analyze should produce no output but if we
1415: # are redirecting, the redirecter should know what to do
1416: # with the output
1417: if (!$Apache::lonxml::redirection) { undef($result); }
1418: }
1.161 albertel 1419: $return = &Apache::run::run($code,$safeeval);
1420: }
1421: if ($error) {
1.270 albertel 1422: &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 1423: }
1424: } elsif ($target eq "edit") {
1425: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1426: }
1.160 albertel 1427: return $result;
1.1 albertel 1428: }
1.6 tsai 1429:
1.160 albertel 1430: # <randomlist show="1">
1.6 tsai 1431: # <tag1>..</tag1>
1432: # <tag2>..</tag2>
1433: # <tag3>..</tag3>
1.160 albertel 1434: # ...
1.6 tsai 1435: # </randomlist>
1436: sub start_randomlist {
1.326 albertel 1437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1438: my $result;
1.339 albertel 1439: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1440: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1441: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1442: my $b_parser= HTML::LCParser->new(\$body);
1443: $b_parser->xml_mode(1);
1444: $b_parser->marked_sections(1);
1.159 albertel 1445: my $b_tok;
1446: my @randomlist;
1447: my $list_item;
1448: while($b_tok = $b_parser->get_token() ) {
1449: if($b_tok->[0] eq 'S') { # start tag
1450: # get content of the tag until matching end tag
1451: # get all text upto the matching tag
1452: # and push the content into @randomlist
1453: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1454: $b_parser);
1455: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1456: push(@randomlist,$list_item);
1457: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1458: # $list_item</b>";
1459: }
1460: if($b_tok->[0] eq 'T') { # text
1461: # what to do with text in between tags?
1462: # print "<b>TEXT $b_tok->[1]</b><br />";
1463: }
1464: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1465: # print "<b>END-TAG $b_tok->[1]</b><br />";
1466: # }
1467: }
1.303 albertel 1468: if (@randomlist) {
1469: my @idx_arr = (0 .. $#randomlist);
1470: &Apache::structuretags::shuffle(\@idx_arr);
1471: my $bodytext = '';
1472: my $show=$#randomlist;
1473: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1474: $showarg--;
1475: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1476: for(0 .. $show) {
1477: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1478: }
1479: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1480: }
1481: } elsif ($target eq 'edit' ) {
1482: $result .=&Apache::edit::tag_start($target,$token);
1483: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1484: $token,5);
1485: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1486: } elsif ($target eq 'modified' ) {
1487: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1488: $safeeval,'show');
1489: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1490: }
1491: return $result;
1.7 tsai 1492: }
1493:
1494: sub shuffle {
1495: my $a=shift;
1496: my $i;
1.303 albertel 1497: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1498: &Apache::response::pushrandomnumber();
1.159 albertel 1499: for($i=@$a;--$i;) {
1500: my $j=int(&Math::Random::random_uniform() * ($i+1));
1501: next if $i == $j;
1502: @$a[$i,$j] = @$a[$j,$i];
1503: }
1.251 albertel 1504: &Apache::response::poprandomnumber();
1.7 tsai 1505: }
1.6 tsai 1506: }
1507:
1508: sub end_randomlist {
1.159 albertel 1509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1510: my $result;
1511: if ($target eq 'edit' ) {
1512: $result=&Apache::edit::tag_end($target,$token,
1513: 'End Randomly Parsed Block');
1514: }
1515: return $result;
1.6 tsai 1516: }
1517:
1.283 albertel 1518: sub ordered_show_check {
1519: my $last_part=$Apache::inputtags::partlist[-2];
1520: my $in_order=
1521: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1522: my $in_order_show=1;
1523: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1524: $in_order_show=&Apache::response::check_status($last_part);
1525: }
1526: return $in_order_show;
1527: }
1528:
1.11 albertel 1529: sub start_part {
1.326 albertel 1530: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1531: if (!$Apache::lonxml::metamode) {
1532: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1533: # duedates.
1534: }
1.159 albertel 1535: my $result='';
1.386 albertel 1536: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1537: $Apache::inputtags::part=$id;
1.177 albertel 1538: push(@Apache::inputtags::partlist,$id);
1539: @Apache::inputtags::response=();
1.159 albertel 1540: @Apache::inputtags::previous=();
1541: @Apache::inputtags::previous_version=();
1.405 albertel 1542: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1543: &Apache::response::reset_params();
1544:
1.159 albertel 1545: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1546: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1547: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1548: my $in_order_show=&ordered_show_check();
1.214 albertel 1549: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1550: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1551: &Apache::run::run($expression,$safeeval);
1.159 albertel 1552:
1553: if ($target eq 'meta') {
1.224 www 1554: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1555: return &Apache::response::mandatory_part_meta.
1556: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1557: } elsif ($target eq 'web' || $target eq 'grade' ||
1558: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1559: if ($hidden || !$in_order_show) {
1.326 albertel 1560: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1561: } else {
1562: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1563: push (@Apache::inputtags::status,$status);
1564: my $expression='$external::datestatus="'.$status.'";';
1565: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1566: &Apache::run::run($expression,$safeeval);
1.284 albertel 1567: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1568: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1569: }
1.216 albertel 1570: if (( $status eq 'CLOSED' ) ||
1571: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1572: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1573: ( $status eq 'BANNED') ||
1574: ( $status eq 'UNAVAILABLE') ||
1575: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1576: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1577: $style);
1.159 albertel 1578: if ( $target eq "web" ) {
1.211 albertel 1579: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1580: } elsif ( $target eq 'tex' ) {
1.284 albertel 1581: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1582: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1583: } else {
1.211 albertel 1584: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1585: }
1.159 albertel 1586: }
1587: } else {
1588: if ($target eq 'tex') {
1.284 albertel 1589: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1590: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1591: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1592: } else {
1593: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1594: }
1.195 sakharuk 1595: }
1.159 albertel 1596: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1597: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1598: my @allkeys = split /,/,$allkeys;
1599: my $allow_print_points = 0;
1600: foreach my $partial_key (@allkeys) {
1.230 albertel 1601: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1602: if ($1 ne '0') {$allow_print_points=1;}
1603: }
1604: }
1.275 albertel 1605: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1606: if (defined($maxtries) && $maxtries < 0) {
1607: $allow_print_points=0;
1608: }
1.302 albertel 1609: if (lc($env{'course.'.$env{'request.course.id'}.
1610: '.disableexampointprint'}) eq 'yes') {
1611: $allow_print_points=0;
1612: }
1.222 sakharuk 1613: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1614: } elsif ($target eq 'web') {
1.356 www 1615: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1616: }
1617: }
1618: }
1619: } elsif ($target eq 'edit') {
1620: $result.=&Apache::edit::tag_start($target,$token);
1621: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1622: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1623: ' '.
1624: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1625: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1626: } elsif ($target eq 'modified') {
1627: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1628: $safeeval,'id','display');
1.159 albertel 1629: if ($constructtag) {
1.225 albertel 1630: #limiting ids to only letters numbers, and space
1.224 www 1631: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1632: $result = &Apache::edit::rebuild_tag($token);
1633: }
1634: }
1635: return $result;
1.11 albertel 1636: }
1637:
1638: sub end_part {
1.159 albertel 1639: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1640: &Apache::lonxml::debug("in end_part $target ");
1641: my $status=$Apache::inputtags::status['-1'];
1642: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1643: my $in_order_show=&ordered_show_check();
1.321 albertel 1644: my $result;
1645: if (!$Apache::lonxml::metamode) {
1646: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1647: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1648: }
1.312 albertel 1649: if ($target eq 'grade') {
1.249 albertel 1650: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1651: !$hidden && $in_order_show) {
1.311 foxr 1652: $result.=&Apache::inputtags::grade;
1.249 albertel 1653: } else {
1654: # move any submission data to .hidden
1655: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1656: }
1.283 albertel 1657: } elsif (($target eq 'web' || $target eq 'tex') &&
1658: !$hidden && $in_order_show) {
1.159 albertel 1659: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1660: $target);
1.212 albertel 1661: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1662: $gradestatus='';
1663: }
1.311 foxr 1664: $result.=$gradestatus;
1.265 sakharuk 1665: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1666: } elsif ($target eq 'edit') {
1.311 foxr 1667: $result.=&Apache::edit::end_table();
1.322 albertel 1668: } elsif ($target eq 'modified') {
1669: $result .= $token->[2];
1.159 albertel 1670: }
1671: pop @Apache::inputtags::status;
1672: $Apache::inputtags::part='';
1.295 albertel 1673: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1674: return $result;
1.11 albertel 1675: }
1.1 albertel 1676:
1.25 albertel 1677: sub start_preduedate {
1.326 albertel 1678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1679: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1680: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1681: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1682: if (!$Apache::lonhomework::scantronmode &&
1683: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1684: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1685: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1686: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1687: }
1.24 albertel 1688: }
1.159 albertel 1689: return '';
1.24 albertel 1690: }
1691:
1.25 albertel 1692: sub end_preduedate {
1.159 albertel 1693: return '';
1.24 albertel 1694: }
1695:
1.369 foxr 1696: # In all the modes where <postanswerdate> text is
1697: # displayable, all we do is eat up the text between the start/stop
1698: # tags if the conditions are not right to display it.
1.25 albertel 1699: sub start_postanswerdate {
1.326 albertel 1700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1701: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1702: &Apache::lonnet::allowed('pav',
1703: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1704: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1705: $target eq 'tex' ) {
1.300 albertel 1706: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1707: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1708: (($target eq 'tex') && !$pav)) {
1.326 albertel 1709: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1710: }
1711: }
1712: return '';
1.24 albertel 1713: }
1714:
1.25 albertel 1715: sub end_postanswerdate {
1.159 albertel 1716: return '';
1.24 albertel 1717: }
1718:
1.25 albertel 1719: sub start_notsolved {
1.326 albertel 1720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1721: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1722: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1723: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1724: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1725: if ($gradestatus =~ /^correct/ &&
1726: &Apache::response::show_answer()) {
1.159 albertel 1727: &Apache::lonxml::debug("skipping");
1.326 albertel 1728: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1729: }
1.24 albertel 1730: }
1.159 albertel 1731: return '';
1.24 albertel 1732: }
1733:
1.25 albertel 1734: sub end_notsolved {
1.159 albertel 1735: return '';
1.24 albertel 1736: }
1737:
1738: sub start_solved {
1.326 albertel 1739: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1740: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1741: $target eq 'tex') {
1742: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1743: if ($gradestatus !~ /^correct/ ||
1744: !&Apache::response::show_answer()) {
1.326 albertel 1745: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1746: }
1.24 albertel 1747: }
1.159 albertel 1748: return '';
1.24 albertel 1749: }
1750:
1751: sub end_solved {
1.248 albertel 1752: return '';
1753: }
1754:
1755: sub start_problemtype {
1.326 albertel 1756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1757: my $result;
1.339 albertel 1758: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1759: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1760: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1761: if (!defined($mode)) { $mode='show'; }
1762: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1763: my $found=0;
1764: foreach my $type (split(',',$for)) {
1765: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1766: }
1767: if ($mode eq 'show' && !$found) {
1.326 albertel 1768: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1769: }
1770: if ($mode eq 'hide' && $found) {
1.326 albertel 1771: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1772: }
1773: } elsif ($target eq 'edit') {
1774: $result .=&Apache::edit::tag_start($target,$token);
1775: $result.=&Apache::edit::select_arg('Mode:','mode',
1776: [['show','Show'],
1777: ['hide','Hide']]
1778: ,$token);
1779: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1780: [ ['exam','Exam/Quiz Problem'],
1781: ['survey','Survey'],
1782: ['problem','Homework Problem'] ]
1783: ,$token);
1784: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1785: } elsif ($target eq 'modified') {
1786: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1787: $safeeval,'mode','for');
1788: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1789: }
1790: return $result;
1791: }
1792:
1793: sub end_problemtype {
1.159 albertel 1794: return '';
1.24 albertel 1795: }
1.34 albertel 1796:
1797: sub start_startouttext {
1.159 albertel 1798: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1799: my @result=(''.'');
1800: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1801:
1802: my $nesting =
1803: &Apache::lonxml::set_state('outtext',
1804: &Apache::lonxml::get_state('outtext')+1);
1805: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1806: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1807: }
1.159 albertel 1808: return (@result);
1.34 albertel 1809: }
1.159 albertel 1810:
1.34 albertel 1811: sub end_startouttext {
1.326 albertel 1812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1813: my $result='';
1814: my $text='';
1815:
1816: if ($target eq 'edit') {
1.326 albertel 1817: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1818: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1819: <td>".&mt('Delete:').
1.159 albertel 1820: &Apache::edit::deletelist($target,$token)
1821: ."</td>
1.42 albertel 1822: <td>".
1.159 albertel 1823: &Apache::edit::insertlist($target,$token).
1.362 albertel 1824: '</td><td align="right" valign="top">' .
1825: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1826: &Apache::edit::end_row().
1.362 albertel 1827: &Apache::edit::start_spanning_row()."\n".
1.255 www 1828: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1829: }
1830: if ($target eq 'modified') {
1.219 albertel 1831: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1832: }
1833: if ($target eq 'tex') {
1834: $result .= '\noindent ';
1835: }
1836: return $result;
1.34 albertel 1837: }
1.159 albertel 1838:
1.34 albertel 1839: sub start_endouttext {
1.159 albertel 1840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1841: my $result='';
1842: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1843: if ($target eq "modified") {
1844: $result='<endouttext />'.
1.377 albertel 1845: &Apache::edit::handle_insertafter('startouttext');
1846: }
1.404 albertel 1847:
1848: my $nesting =
1849: &Apache::lonxml::set_state('outtext',
1850: &Apache::lonxml::get_state('outtext')-1);
1851: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1852: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1853: &Apache::lonxml::set_state('outtext', 0);
1854: }
1.159 albertel 1855: return $result;
1.34 albertel 1856: }
1.159 albertel 1857:
1.34 albertel 1858: sub end_endouttext {
1.159 albertel 1859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1860: my @result=('','');
1861: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1862: return (@result);
1.34 albertel 1863: }
1.159 albertel 1864:
1.45 albertel 1865: sub delete_startouttext {
1.326 albertel 1866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1867: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1868: my $text=$$parser['-1']->get_text("/endouttext");
1869: my $ntoken=$$parser['-1']->get_token();
1870: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1871: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1872: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1873: # they did the last time round
1874: &Apache::lonxml::increasedepth($ntoken);
1875: &Apache::lonxml::decreasedepth($ntoken);
1876: return 1;
1.193 www 1877: }
1878:
1879: sub start_simpleeditbutton {
1880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1881: my $result='';
1.284 albertel 1882: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1883: ($target eq 'web') &&
1.330 albertel 1884: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1885: my $url=$env{'request.noversionuri'};
1.193 www 1886: $url=~s/\?.*$//;
1.367 albertel 1887: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1888: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1889: '<a href="'.$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 1890: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1891: }
1892: return $result;
1893: }
1894:
1895: sub end_simpleeditbutton {
1896: return '';
1.45 albertel 1897: }
1.34 albertel 1898:
1.1 albertel 1899: 1;
1900: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>