Annotation of loncom/homework/structuretags.pm, revision 1.406
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.406 ! albertel 4: # $Id: structuretags.pm,v 1.405 2007/10/17 00:22:51 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().'
1.210 albertel 305: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 306: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 307: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 308: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
309: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
310: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 311: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 312: .'</td></tr></table>'.
1.282 albertel 313: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 314: }
315:
316: sub problem_edit_footer {
1.210 albertel 317: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 318: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 319: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 320: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 321: }
322:
1.235 albertel 323: sub option {
324: my ($value,$name) = @_;
325: my $result ="<option value='".$value."' ";
1.284 albertel 326: if ($env{'form.'.$name} eq $value) {
1.235 albertel 327: $result.=" selected='on' ";
328: }
329: $result.='>';
330: return $result;
331: }
332:
1.105 albertel 333: sub problem_web_to_edit_header {
1.159 albertel 334: my ($rndseed)=@_;
1.406 ! albertel 335: my $result .= '<div class="LC_edit_problem_header">';
! 336:
! 337: $result.='<div class="LC_edit_problem_header_edit_row">';
! 338: $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 339: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.406 ! albertel 340: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />';
! 341: $result.='</div>';
! 342:
! 343: if (!$Apache::lonhomework::parsing_a_task) {
! 344: $result .=
! 345: '<div class="LC_edit_problem_header_title">'.
! 346: &mt('Problem Testing').
! 347: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
! 348: '</div>';
! 349: } else {
! 350: $result .=
! 351: '<div class="LC_edit_problem_header_title">'.
! 352: &mt('Task Testing').
! 353: '</div>';
! 354: }
! 355:
1.315 albertel 356: my $show_all_foils_text =
357: ($Apache::lonhomework::parsing_a_task) ?
358: &mt(' Show All Instances')
359: : &mt(' Show All Foils');
360:
1.406 ! albertel 361: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
! 362: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
! 363: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
! 364:
! 365:
1.384 albertel 366:
1.406 ! albertel 367: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 368: if (!$Apache::lonhomework::parsing_a_task) {
369: $result.="
1.406 ! albertel 370: <div class='LC_edit_problem_header_row1'>
! 371: <span class=\"LC_nobreak\">
1.405 albertel 372: ".&mt("Problem Status:")."
1.235 albertel 373: <select name='problemstate'>
1.270 albertel 374: <option value=''></option>
1.235 albertel 375: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
376: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
377: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
378: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
379: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
380: </select>
1.406 ! albertel 381: </span>
! 382: <span class=\"LC_nobreak\">
1.405 albertel 383: ".&mt("Problem Type:")."
1.235 albertel 384: <select name='problemtype'>
1.270 albertel 385: <option value=''></option>
1.242 albertel 386: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
387: ".&option('problem','problemtype').&mt("Homework problem")."</option>
388: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 389: </select>
1.406 ! albertel 390: </span>
! 391: $show_all
! 392: </div>
! 393: <div class='LC_edit_problem_header_row2'>
! 394: <span class=\"LC_nobreak\">
1.405 albertel 395: ".&mt("Feedback Mode:")."
1.235 albertel 396: <select name='problemstatus'>
397: <option value=''></option>
1.242 albertel 398: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 399: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
400: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 401: </select>
1.406 ! albertel 402: </span>
! 403: ";
! 404:
1.376 albertel 405: } elsif ($Apache::lonhomework::parsing_a_task) {
406: $result.="
1.406 ! albertel 407: <div class='LC_edit_problem_header_row1'>
! 408: <span class=\"LC_nobreak\">
1.405 albertel 409: ".&mt("Problem Status:")."
1.376 albertel 410: <select name='problemstate'>
411: <option value=''></option>
412: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
413: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
414: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
415: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
416: </select>
1.406 ! albertel 417: </span>
! 418: $show_all
! 419: ";
! 420: }
! 421:
! 422: $result.='
! 423: <span class="LC_nobreak">
! 424: '.&mt('Apply style file: ').'
! 425: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
! 426: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
! 427: </span>
! 428: </div>
! 429: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
! 430: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
! 431: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
! 432: </div>
! 433: <hr class="LC_edit_problem_divide" />
! 434: <div class="LC_edit_problem_header_randomize_row">
! 435: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
! 436: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
! 437: <input type="text" name="rndseed" size="10" value="'.
! 438: $rndseed.'"
! 439: onchange="javascript:document.lonhomework.changerandseed.click()" />';
! 440:
! 441: if (!$Apache::lonhomework::parsing_a_task) {
! 442: my $numtoanalyze=$env{'form.numtoanalyze'};
! 443: if (!$numtoanalyze) { $numtoanalyze=20; }
! 444: $result .= &mt('[_1] for [_2] versions of this problem.',
! 445: '<input type="submit" name="problemmode" value='.&mt('"Calculate answers').'" />',
! 446: '<input type="text" name="numtoanalyze" value="'.
! 447: $numtoanalyze.'" size="5" />').
! 448: &Apache::loncommon::help_open_topic("Analyze_Problem",
! 449: '',undef,undef,300);
1.313 albertel 450: }
1.406 ! albertel 451:
! 452: $result.='
! 453: </div>
! 454: <hr class="LC_edit_problem_divide" />
! 455: </div>';
1.159 albertel 456: return $result;
1.48 albertel 457: }
458:
1.65 albertel 459: sub initialize_storage {
1.357 albertel 460: my ($given_symb) = @_;
1.353 albertel 461: undef(%Apache::lonhomework::results);
462: undef(%Apache::lonhomework::history);
1.357 albertel 463: my ($symb,$courseid,$domain,$name) =
1.367 albertel 464: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 465:
466: # anonymous users (CODEd exams) have no data
467: if ($name eq 'anonymous'
468: && !defined($domain)) {
469: return;
470: }
471:
1.333 albertel 472: if ($env{'request.state'} eq 'construct'
473: || $symb eq ''
474: || $Apache::lonhomework::type eq 'practice') {
475:
476: my $namespace = $symb || $env{'request.uri'};
477: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 478: ($env{'form.resetdata'} eq &mt('New Problem Variation')
479: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 480: $env{'form.newrandomization'} eq &mt('New Randomization')) {
481: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
482: &Apache::lonxml::debug("Attempt reset");
483: }
1.159 albertel 484: %Apache::lonhomework::history=
1.333 albertel 485: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 486: my ($temp)=keys %Apache::lonhomework::history ;
487: &Apache::lonxml::debug("Return message of $temp");
488: } else {
489: %Apache::lonhomework::history=
490: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
491: }
1.353 albertel 492:
1.159 albertel 493: #ignore error conditions
1.67 albertel 494: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 495: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 496: }
497:
498: # -------------------------------------------------------------finalize_storage
499: # Stores away the result has to a student's environment
500: # checks form.grade_ for specific values, other wises stores
501: # to the running users environment
1.285 raeburn 502: # Will increment totals for attempts, students, and corrects
503: # if running user has student role.
1.65 albertel 504: sub finalize_storage {
1.357 albertel 505: my ($given_symb) = @_;
1.159 albertel 506: my $result;
1.289 albertel 507: if (%Apache::lonhomework::results) {
1.323 albertel 508: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
509: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 510: my ($symb,$courseid,$domain,$name) =
1.367 albertel 511: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 512: if ($env{'request.state'} eq 'construct'
513: || $symb eq ''
514: || $Apache::lonhomework::type eq 'practice') {
515: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 516: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 517: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 518: $namespace,'',$domain,$name);
1.159 albertel 519: &Apache::lonxml::debug('Construct Store return message:'.$result);
520: } else {
521: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
522: $symb,$courseid,$domain,$name);
523: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 524: if ($env{'request.role'} =~/^st/) {
525: &store_aggregates($symb,$courseid);
526: }
1.159 albertel 527: }
1.323 albertel 528: } else {
529: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 530: }
1.159 albertel 531: return $result;
1.65 albertel 532: }
533:
1.285 raeburn 534: # -------------------------------------------------------------store_aggregates
535: # Sends hash of values to be incremented in nohist_resourcetracker.db
536: # for the course. Increments total number of attempts, unique students
537: # and corrects for each part for an instance of a problem, as appropriate.
538: sub store_aggregates {
539: my ($symb,$courseid) = @_;
1.286 albertel 540: my %aggregate;
541: my @parts;
1.288 albertel 542: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
543: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 544: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 545: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 546: push(@parts, $1);
1.285 raeburn 547: }
548: }
1.286 albertel 549: foreach my $part (@parts) {
550: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
551: eq 'APPROX_ANS' ||
552: $Apache::lonhomework::results{'resource.'.$part.'.award'}
553: eq 'EXACT_ANS') {
1.287 albertel 554: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 555: }
1.286 albertel 556: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 557: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 558: } else {
1.293 albertel 559: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 560: if ($last_reset) {
1.293 albertel 561: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 562: $aggregate{$symb."\0".$part."\0users"} = 1;
563: }
564: }
1.285 raeburn 565: }
1.287 albertel 566: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 567: }
1.292 raeburn 568: if (keys (%aggregate) > 0) {
1.289 albertel 569: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 570: $cdomain,$cname);
571: }
572: }
1.289 albertel 573:
1.65 albertel 574: sub checkout_msg {
1.211 albertel 575: my %lt=&Apache::lonlocal::texthash(
576: 'resource'=>'The resource needs to be checked out',
577: '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.',
578: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
579: 'checkout'=>'Check out Exam for Viewing',
580: 'checkout?'=>'Check out Exam?');
1.352 albertel 581: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 582: return (<<ENDCHECKOUT);
1.211 albertel 583: <h2>$lt{'resource'}</h2>
584: <p>$lt{'id_expln'}</p>
585: <font color="red">
586: <p>$lt{'warning'}</p>
1.91 albertel 587: </font>
1.352 albertel 588: <form name="checkout" method="POST" action="$uri">
1.91 albertel 589: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 590: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 591: </form>
592: ENDCHECKOUT
593: }
594:
1.252 albertel 595: sub firstaccess_msg {
1.253 albertel 596: my ($time,$symb)=@_;
597: my ($map)=&Apache::lonnet::decode_symb($symb);
598: my $foldertitle=&Apache::lonnet::gettitle($map);
599: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 600: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 601: return (<<ENDCHECKOUT);
1.253 albertel 602: <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 603: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 604: <input type="hidden" name="markaccess" value="yes" />
605: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
606: </form>
607: ENDCHECKOUT
608: }
609:
1.204 albertel 610: sub init_problem_globals {
611: my ($type)=@_;
612: #initialize globals
1.308 foxr 613: # For problems, we start out in part 0 (outside a <part> tag).
614: # and part 0 is used to describe the main body of the <problem>
615: #
1.204 albertel 616: if ($type eq 'problem') {
617: $Apache::inputtags::part='0';
618: @Apache::inputtags::partlist=('0');
1.405 albertel 619: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 620: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 621:
1.266 albertel 622: } elsif ($type eq 'library') {
1.204 albertel 623: $Apache::inputtags::part='';
624: @Apache::inputtags::partlist=();
1.405 albertel 625: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 626: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 627:
1.304 albertel 628: } elsif ($type eq 'Task') {
629: $Apache::inputtags::part='0';
630: @Apache::inputtags::partlist=('0');
1.405 albertel 631: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 632: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 633: }
634: @Apache::inputtags::responselist = ();
635: @Apache::inputtags::importlist = ();
636: @Apache::inputtags::previous=();
637: @Apache::inputtags::previous_version=();
638: $Apache::structuretags::printanswer='No';
639: @Apache::structuretags::whileconds=();
640: @Apache::structuretags::whilebody=();
641: @Apache::structuretags::whileline=();
642: $Apache::lonhomework::scantronmode=0;
643: undef($Apache::lonhomework::name);
1.358 albertel 644: undef($Apache::lonhomework::default_type);
645: undef($Apache::lonhomework::type);
1.204 albertel 646: }
647:
648: sub reset_problem_globals {
649: my ($type)=@_;
650: undef(%Apache::lonhomework::history);
651: undef(%Apache::lonhomework::results);
652: undef($Apache::inputtags::part);
1.208 albertel 653: #don't undef this, lonhomework.pm takes care of this, we use this to
654: #detect if we try to do 2 problems in one file
655: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 656: undef($Apache::lonhomework::name);
1.358 albertel 657: undef($Apache::lonhomework::default_type);
658: undef($Apache::lonhomework::type);
659: undef($Apache::lonhomework::scantronmode);
660: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 661: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 662: }
663:
1.241 albertel 664: sub set_problem_state {
1.240 albertel 665: my ($part)=@_;
1.284 albertel 666: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 667: $Apache::lonhomework::history{"resource.$part.solved"}=
668: 'correct_by_student';
669: }
670: }
671:
1.241 albertel 672: sub get_problem_status {
673: my ($part)=@_;
1.267 albertel 674: my $problem_status;
1.284 albertel 675: if ($env{'request.state'} eq 'construct' &&
676: defined($env{'form.problemstatus'})) {
677: $problem_status=$env{'form.problemstatus'};
1.267 albertel 678: } else {
679: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
680: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 681: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 682: }
683: return $problem_status;
684: }
685:
1.9 albertel 686: sub start_problem {
1.326 albertel 687: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 688:
1.311 foxr 689: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 690: if (!$Apache::lonxml::metamode) {
691: &Apache::lonxml::startredirection();
692: }
1.311 foxr 693:
1.308 foxr 694: # Problems don't nest and we don't allow more than one <problem> in
695: # a .problem file.
696: #
1.184 albertel 697: if ( $Apache::inputtags::part ne '' ||
698: $Apache::lonhomework::parsing_a_problem) {
699: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 700: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 701: return '';
702: }
1.184 albertel 703:
704: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 705: &init_problem_globals('problem');
1.166 albertel 706:
1.284 albertel 707: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 708: $Apache::lonhomework::scantronmode=1;
709: }
1.161 albertel 710:
1.159 albertel 711: if ($target ne 'analyze') {
712: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 713: if (($env{'request.state'} eq 'construct') &&
714: defined($env{'form.problemtype'})) {
715: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 716: }
1.332 albertel 717: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 718: }
1.164 albertel 719: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 720: my $uri=$env{'request.uri'};
1.159 albertel 721: if ($uri=~/\.(\w+)$/) {
722: $Apache::lonhomework::type=$1;
723: &Apache::lonxml::debug("Using type of $1");
724: } else {
725: $Apache::lonhomework::type='problem';
726: &Apache::lonxml::debug("Using default type, problem, :$uri:");
727: }
1.87 albertel 728: }
1.301 albertel 729: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 730:
1.363 albertel 731: &initialize_storage();
1.389 albertel 732: if ($target ne 'analyze'
733: && $env{'request.state'} eq 'construct') {
734: &set_problem_state('0');
735: }
736:
1.366 albertel 737: if ($target eq 'web') {
738: &Apache::lonxml::debug(" grading history ");
739: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
740: }
1.363 albertel 741:
1.159 albertel 742: #added vars to the scripting enviroment
1.213 albertel 743: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 744: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 745: &Apache::run::run($expression,$safeeval);
1.159 albertel 746: my $status;
747: my $accessmsg;
748:
1.343 albertel 749: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 750: my ($result,$form_tag_start);
1.354 albertel 751: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
752: || $target eq 'edit') {
1.350 albertel 753: ($result,$form_tag_start) =
754: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
755: $name);
756: }
757:
1.284 albertel 758: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 759:
760: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
761: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
762: $target eq 'tex') {
763: #handle exam checkout
764: if ($Apache::lonhomework::type eq 'exam') {
765: my $token=
766: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 767: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 768: $token=&Apache::lonxml::maketoken();
769: $Apache::lonhomework::history{"resource.0.outtoken"}=
770: $token;
771: }
1.343 albertel 772: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 773: }
1.284 albertel 774: if ($env{'form.markaccess'}) {
1.252 albertel 775: &Apache::lonnet::set_first_access('map');
776: }
1.159 albertel 777: #handle rand seed in construction space
778: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 779: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 780: if ($env{'request.state'} ne "construct" &&
781: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 782: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
783: $rndseed.'" />'.
784: '<input type="submit" name="resetdata"
1.334 albertel 785: value="'.&mt('New Problem Variation').'" />';
786: if (exists($env{'form.username'})) {
787: $form_tag_start.=
1.164 albertel 788: '<input type="hidden" name="username"
1.284 albertel 789: value="'.$env{'form.username'}.'" />';
1.334 albertel 790: }
1.333 albertel 791: if ($env{'request.role.adv'}) {
1.267 albertel 792: $form_tag_start.=
1.300 albertel 793: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 794: if (defined($env{'form.showallfoils'})) {
1.267 albertel 795: $form_tag_start.='checked="on"';
796: }
1.300 albertel 797: $form_tag_start.= ' />'.&mt(' Show All Foils').
798: '</label>';
1.267 albertel 799: }
800: $form_tag_start.='<hr />';
1.162 albertel 801: }
1.324 albertel 802:
803: ($status,$accessmsg,my $slot_name,my $slot) =
804: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 805: push (@Apache::inputtags::status,$status);
1.324 albertel 806:
1.159 albertel 807: my $expression='$external::datestatus="'.$status.'";';
808: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
809: &Apache::run::run($expression,$safeeval);
810: &Apache::lonxml::debug("Got $status");
1.324 albertel 811:
1.159 albertel 812: if (( $status eq 'CLOSED' ) ||
813: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 814: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 815: ( $status eq 'BANNED') ||
1.216 albertel 816: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 817: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 818: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 819: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
820: $style);
1.159 albertel 821: if ( $target eq "web" ) {
1.343 albertel 822: my $msg;
1.159 albertel 823: if ($status eq 'UNAVAILABLE') {
1.245 albertel 824: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 825: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 826: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 827: }
1.216 albertel 828: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 829: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 830: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 831: $msg.=&checkout_msg();
1.252 albertel 832: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 833: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 834: } elsif ($status eq 'NOT_IN_A_SLOT') {
835: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 836: }
837: $result.=$msg.'<br />';
838: } elsif ($target eq 'tex') {
1.332 albertel 839: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
840: : '\begin{minipage}{\textwidth}';
841: $result.='\begin{document}\noindent \vskip 1 mm '.
842: $startminipage.'\vskip 0 mm';
1.159 albertel 843: if ($status eq 'UNAVAILABLE') {
1.211 albertel 844: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 845: } else {
1.211 albertel 846: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 847: }
848: }
1.324 albertel 849: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 850: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
851: $style);
1.324 albertel 852: if ($target eq 'web') {
1.375 albertel 853: $result .=
854: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 855: } elsif ($target eq 'grade') {
856: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
857: 'problem');
858: }
1.159 albertel 859: } elsif ($target eq 'web') {
1.360 albertel 860: if ($status eq 'CAN_ANSWER'
861: && $slot_name ne ''
862: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
863: # unproctored slot access, self checkin
864: &Apache::bridgetask::check_in('problem',undef,undef,
865: $slot_name);
866: }
1.368 albertel 867: $result.="\n $form_tag_start \t".
1.227 albertel 868: '<input type="hidden" name="submitted" value="yes" />';
869: # create a page header and exit
1.284 albertel 870: if ($env{'request.state'} eq "construct") {
871: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 872: }
873: # if we are viewing someone else preserve that info
1.284 albertel 874: if (defined $env{'form.grade_symb'}) {
1.227 albertel 875: foreach my $field ('symb','courseid','domain','username') {
876: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 877: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 878: }
879: }
880: } elsif ($target eq 'tex') {
1.319 foxr 881: $result .= 'INSERTTEXFRONTMATTERHERE';
882:
1.99 sakharuk 883: }
1.159 albertel 884: } elsif ($target eq 'edit') {
1.343 albertel 885: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 886: $Apache::lonxml::warnings_error_header=
887: &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 888: my $temp=&Apache::edit::insertlist($target,$token);
889: $result.=$temp;
890: } elsif ($target eq 'modified') {
891: $result=$token->[4];
892: } else {
893: # page_start returned a starting result, delete it if we don't need it
894: $result = '';
1.99 sakharuk 895: }
1.159 albertel 896: return $result;
1.9 albertel 897: }
898:
899: sub end_problem {
1.159 albertel 900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 901: my $result;
1.310 foxr 902:
1.321 albertel 903: if (!$Apache::lonxml::metamode) {
904: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 905: $Apache::lonxml::post_evaluate=0;
1.321 albertel 906: }
1.319 foxr 907:
908: if ($target eq 'tex') {
1.321 albertel 909: # Figure out the front matter and replace the
910: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
911: # this in end_problem because whether or not we display due
912: # dates depends on whether due dates have already been
913: # displayed in the problem parts.
914:
1.319 foxr 915: my $frontmatter = '';
916: my $startminipage = '';
917: if (not $env{'form.problem_split'}=~/yes/) {
918: $startminipage = '\begin{minipage}{\textwidth}';
919: }
920: my $id = $Apache::inputtags::part;
921: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
922: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
923: my @packages = split /,/,$packages;
924: my $allow_print_points = 0;
925: foreach my $partial_key (@packages) {
926: if ($partial_key=~m/^part_0$/) {
927: $allow_print_points=1;
928: }
929: }
930: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
931: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
932: if (lc($env{'course.'.$env{'request.course.id'}.
933: '.disableexampointprint'}) eq 'yes') {
934: $allow_print_points=0;
935: }
936: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
937: 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 ';
938: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
939: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
940:
941: # Figure out what the due date is and if we need to print
942: # it in the problem header. We have been logging the
943: # last due date written to file.
944:
945: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
946: my $duedate = POSIX::strftime("%c",localtime($duetime));
947: my $temp_file;
948: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
949:
950: # Figure out what the last printed due date is or set it
951: # to the epoch if no duedates have been printed.
952:
953: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
954: if (-e $filename) {
955: $temp_file = Apache::File->new($filename);
956: my @due_file = <$temp_file>;
957: $due_file_content = $due_file[$#due_file];
958: chomp $due_file_content;
959: }
960:
961: # We display the due date iff it is not the same as the last
962: # duedate in problem header ($due_file_content), and
963: # none of our parts displayed a duedate.
964: #
965: my $parts_with_displayduedate;
966: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
967: $parts_with_displayduedate =
968: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
969: } else {
970: $parts_with_displayduedate = 0;
971: }
972: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
973: $temp_file = Apache::File->new('>'.$filename);
974: print $temp_file "$duetime\n";
975: if (not $env{'request.symb'} =~ m/\.page_/) {
976: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
977: $frontmatter .= $begin_doc.
978: '\textit{Due date: '.$duedate.'} '.$toc_line;
979: } else {
980: $frontmatter.= $begin_doc.$toc_line;
981: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
982: }
983: } else {
1.381 albertel 984: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 985: }
986: } else {
987: if (not $env{'request.symb'} =~ m/\.page_/) {
988: $frontmatter .= $begin_doc.$toc_line;
989: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
990: } else {
1.381 albertel 991: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 992: }
993: }
994: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
995: }
996:
1.159 albertel 997: my $status=$Apache::inputtags::status['-1'];
998: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
999: $target eq 'tex') {
1.249 albertel 1000: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1001: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1002: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1003: &Apache::inputtags::grade;
1.324 albertel 1004: } elsif ($status eq 'NEEDS_CHECKIN') {
1005: # no need to grade, and don't want to hide data
1.249 albertel 1006: } else {
1007: # move any submission data to .hidden
1008: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1009: }
1.159 albertel 1010: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1011: $Apache::inputtags::part eq '0' &&
1.252 albertel 1012: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1013: # if part is zero, no <part>s existed, so we need show the current
1014: # grading status
1015: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1016: $result.= $gradestatus;
1017: }
1018: if (
1.284 albertel 1019: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1020: ($target eq 'answer') || ($target eq 'tex')
1021: ) {
1.227 albertel 1022: if ($target ne 'tex' &&
1.284 albertel 1023: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1024: $result.="</form>";
1.348 albertel 1025: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1026: }
1027: if ($target eq 'web') {
1.346 albertel 1028: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1029: } elsif ($target eq 'tex') {
1.178 sakharuk 1030: my $endminipage = '';
1.284 albertel 1031: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1032: $endminipage = '\end{minipage}';
1033: }
1.284 albertel 1034: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1035: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1036: } else {
1.262 sakharuk 1037: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1038: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1039: $result .= $endminipage.'\end{document} ';
1040: } else {
1.382 albertel 1041: $result .= $endminipage;
1.262 sakharuk 1042: }
1.159 albertel 1043: }
1044: }
1045: }
1046: if ($target eq 'grade') {
1047: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1048: &finalize_storage();
1049: }
1.284 albertel 1050: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1051: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1052: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1053: # normally we get it from above, but in CSTR
1.172 albertel 1054: # we always show answer mode too.
1.159 albertel 1055: }
1056: } elsif ($target eq 'meta') {
1057: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1058: @Apache::inputtags::response=();
1.159 albertel 1059: $result=&Apache::response::mandatory_part_meta;
1060: }
1.215 albertel 1061: $result.=&Apache::response::meta_part_order();
1.258 albertel 1062: $result.=&Apache::response::meta_response_order();
1.159 albertel 1063: } elsif ($target eq 'edit') {
1064: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1065: $result .= &problem_edit_footer();
1.320 albertel 1066: } elsif ($target eq 'modified') {
1067: $result .= $token->[2];
1.159 albertel 1068: }
1.155 albertel 1069:
1.284 albertel 1070: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1071: &Apache::inputtags::check_for_duplicate_ids();
1072: }
1.204 albertel 1073:
1074: &reset_problem_globals('problem');
1.159 albertel 1075:
1076: return $result;
1.48 albertel 1077: }
1078:
1.108 albertel 1079:
1.48 albertel 1080: sub start_library {
1.159 albertel 1081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1082: my ($result,$form_tag_start);
1.371 albertel 1083: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1084: &init_problem_globals('library');
1085: $Apache::lonhomework::type='problem';
1086: }
1.159 albertel 1087: if ($target eq 'edit') {
1.343 albertel 1088: ($result,$form_tag_start)=
1089: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1090: 'Edit');
1091: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1092: my $temp=&Apache::edit::insertlist($target,$token);
1093: $result.=$temp;
1094: } elsif ($target eq 'modified') {
1095: $result=$token->[4];
1.340 albertel 1096: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1097: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1098: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1099: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1100: ($result,$form_tag_start)=
1101: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1102: $name);
1.159 albertel 1103: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1104: $result.=" \n $form_tag_start".
1.159 albertel 1105: '<input type="hidden" name="submitted" value="yes" />';
1106: $result.=&problem_web_to_edit_header($rndseed);
1107: }
1108: return $result;
1.48 albertel 1109: }
1110:
1111: sub end_library {
1.159 albertel 1112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1113: my $result='';
1114: if ($target eq 'edit') {
1115: $result=&problem_edit_footer();
1.371 albertel 1116: } elsif ($target eq 'web'
1117: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1118: && $env{'request.state'} eq "construct") {
1.349 albertel 1119: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1120: }
1.371 albertel 1121: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1122: &reset_problem_globals('library');
1123: }
1.159 albertel 1124: return $result;
1.197 www 1125: }
1126:
1127: sub start_definetag {
1.326 albertel 1128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1129:
1130: my $result;
1131:
1132: my $name = $token->[2]->{'name'};
1.326 albertel 1133: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1134: if ($target eq 'web') {
1135: if ($name=~/^\//) {
1136: $result=
1137: '<br /><table class="LC_sty_end"><tr><th>'.
1138: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1139: } else {
1140: $result=
1141: '<br /><table class="LC_sty_begin"><tr><th>'.
1142: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1143: }
1144: $skip = &HTML::Entities::encode($skip, '<>&"');
1145: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1146: }
1147: return $result;
1148: }
1149:
1150: sub end_definetag {
1151: return '';
1.1 albertel 1152: }
1153:
1154: sub start_block {
1.201 albertel 1155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1156:
1157: my $result;
1.1 albertel 1158:
1.339 albertel 1159: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1160: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1161: my $code = $token->[2]->{'condition'};
1.385 albertel 1162: if (defined($code) && $code ne '') {
1.137 albertel 1163: if (!$Apache::lonxml::default_homework_loaded) {
1164: &Apache::lonxml::default_homework_load($safeeval);
1165: }
1.131 albertel 1166: $result = &Apache::run::run($code,$safeeval);
1167: &Apache::lonxml::debug("block :$code: returned :$result:");
1168: } else {
1169: $result='1';
1170: }
1171: if ( ! $result ) {
1.201 albertel 1172: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1173: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1174: }
1175: $result='';
1176: } elsif ($target eq 'edit') {
1177: $result .=&Apache::edit::tag_start($target,$token);
1178: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1179: $token,40);
1180: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1181: } elsif ($target eq 'modified') {
1182: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1183: $safeeval,'condition');
1184: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1185: }
1.131 albertel 1186: return $result;
1.1 albertel 1187: }
1188:
1189: sub end_block {
1.167 www 1190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1191: my $result;
1192: if ($target eq "edit") {
1193: $result.= &Apache::edit::tag_end($target,$token,'');
1194: }
1195: return $result;
1196: }
1197:
1198: sub start_languageblock {
1.201 albertel 1199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1200:
1201: my $result;
1202:
1.339 albertel 1203: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1204: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1205: my $include = $token->[2]->{'include'};
1206: my $exclude = $token->[2]->{'exclude'};
1.398 www 1207: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1208: # This should not even happen, since we should at least have the server language
1.398 www 1209: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1210: # Now loop over all languages in order of preference
1211: foreach my $preferred_language (@preferred_languages) {
1.394 www 1212: # If the languageblock has no arguments, show the contents
1.399 www 1213: $result=1;
1214: my $found=0;
1.394 www 1215: # Do we have an include argument?
1.398 www 1216: if ($include) {
1.394 www 1217: # If include is specified, by default, don't render the block
1.399 www 1218: $result=0;
1.398 www 1219: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1220: # ... but if my preferred language is included, render it
1.398 www 1221: if ($included_language eq $preferred_language) {
1.399 www 1222: $result=1;
1223: $found=1;
1.398 www 1224: }
1225: }
1226: }
1.394 www 1227: # Do we have an exclude argument?
1.398 www 1228: if ($exclude) {
1.399 www 1229: $result=1;
1.398 www 1230: foreach my $excluded_language (split(/\,/,$exclude)) {
1231: if ($excluded_language eq $preferred_language) {
1.399 www 1232: $result=0;
1233: $found=1;
1.398 www 1234: }
1235: }
1236: }
1.399 www 1237: if ($found) { last; }
1.398 www 1238: }
1.201 albertel 1239: if ( ! $result ) {
1240: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1241: $style);
1242: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1243: }
1244: $result='';
1.167 www 1245: } elsif ($target eq 'edit') {
1246: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1247: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1248: $token,40);
1.211 albertel 1249: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1250: $token,40);
1251: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1252: } elsif ($target eq 'modified') {
1253: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1254: $safeeval,'include',
1255: 'exclude');
1.167 www 1256: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1257: }
1258: return $result;
1259: }
1260:
1261: sub end_languageblock {
1.170 www 1262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1263: my $result;
1.201 albertel 1264: if ($target eq "edit") {
1.170 www 1265: $result.= &Apache::edit::tag_end($target,$token,'');
1266: }
1267: return $result;
1268: }
1269:
1.397 albertel 1270: {
1271: my %available_texts;
1272: sub start_translated {
1273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1274: &Apache::lonxml::register('Apache::structuretags',('lang'));
1275: undef(%available_texts);
1276: }
1277:
1278: sub end_translated {
1279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1280: my $result;
1281: #show the translation on viewable targets
1282: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1283: # or non-viewable targets, if it's embedded in something that
1284: # wants the output
1285: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1286: && &Apache::lonxml::in_redirection() ) ) {
1287: my @possibilities = keys(%available_texts);
1288: my $which =
1289: &Apache::loncommon::languages(\@possibilities) || 'default';
1290: $result = $available_texts{$which};
1291: }
1292: undef(%available_texts);
1293: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1294: return $result;
1295: }
1296:
1297:
1298: sub start_lang {
1299: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1300: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1301: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1302: &Apache::lonxml::startredirection();
1303: }
1304: return '';
1305: }
1306:
1307: sub end_lang {
1308: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1309: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1310: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1311: my $result = &Apache::lonxml::endredirection();
1312: my $which = &Apache::lonxml::get_param('which',$parstack,
1313: $safeeval);
1314: $available_texts{$which} = $result;
1315: }
1316: return '';
1317: }
1318: }
1319:
1.170 www 1320: sub start_instructorcomment {
1.201 albertel 1321: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1322:
1323: my $result;
1324:
1.339 albertel 1325: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1326: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1327: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1328: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1329: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1330: $parser,$style);
1.170 www 1331: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1332: }
1333: $result='';
1334: } elsif ($target eq 'edit') {
1335: $result .=&Apache::edit::tag_start($target,$token);
1336: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1337: }
1338: return $result;
1339: }
1340:
1341: sub end_instructorcomment {
1.159 albertel 1342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1343: my $result;
1344: if ($target eq "edit") {
1345: $result.= &Apache::edit::tag_end($target,$token,'');
1346: }
1347: return $result;
1.4 tsai 1348: }
1349:
1350: sub start_while {
1.326 albertel 1351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1352:
1.160 albertel 1353: my $result;
1.339 albertel 1354: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1355: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1356: my $code = $token->[2]->{'condition'};
1.4 tsai 1357:
1.160 albertel 1358: push( @Apache::structuretags::whileconds, $code);
1359: if (!$Apache::lonxml::default_homework_loaded) {
1360: &Apache::lonxml::default_homework_load($safeeval);
1361: }
1362: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1363: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1364: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1365: push( @Apache::structuretags::whileline, $token->[5]);
1366: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1367: if ( $result ) {
1368: &Apache::lonxml::newparser($parser,\$bodytext);
1369: }
1370: } elsif ($target eq 'edit') {
1371: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1372: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1373: $token,40);
1374: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1375: } elsif ($target eq 'modified') {
1376: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1377: $safeeval,'condition');
1378: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1379: }
1.160 albertel 1380: return $result;
1.4 tsai 1381: }
1382:
1383: sub end_while {
1.159 albertel 1384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1385: my $result;
1386:
1.339 albertel 1387: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1388: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1389: my $code = pop(@Apache::structuretags::whileconds);
1390: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1391: my $line = pop(@Apache::structuretags::whileline);
1392: my $return = &Apache::run::run($code,$safeeval);
1393: my $starttime=time;
1394: my $error=0;
1395: while ($return) {
1396: if (time-$starttime >
1397: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1398: $return = 0; $error=1; next;
1.161 albertel 1399: }
1400: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1401: if ($target eq 'grade' || $target eq 'answer' ||
1402: $target eq 'analyze') {
1403: # grade/answer/analyze should produce no output but if we
1404: # are redirecting, the redirecter should know what to do
1405: # with the output
1406: if (!$Apache::lonxml::redirection) { undef($result); }
1407: }
1.161 albertel 1408: $return = &Apache::run::run($code,$safeeval);
1409: }
1410: if ($error) {
1.270 albertel 1411: &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 1412: }
1413: } elsif ($target eq "edit") {
1414: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1415: }
1.160 albertel 1416: return $result;
1.1 albertel 1417: }
1.6 tsai 1418:
1.160 albertel 1419: # <randomlist show="1">
1.6 tsai 1420: # <tag1>..</tag1>
1421: # <tag2>..</tag2>
1422: # <tag3>..</tag3>
1.160 albertel 1423: # ...
1.6 tsai 1424: # </randomlist>
1425: sub start_randomlist {
1.326 albertel 1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1427: my $result;
1.339 albertel 1428: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1429: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1430: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1431: my $b_parser= HTML::LCParser->new(\$body);
1432: $b_parser->xml_mode(1);
1433: $b_parser->marked_sections(1);
1.159 albertel 1434: my $b_tok;
1435: my @randomlist;
1436: my $list_item;
1437: while($b_tok = $b_parser->get_token() ) {
1438: if($b_tok->[0] eq 'S') { # start tag
1439: # get content of the tag until matching end tag
1440: # get all text upto the matching tag
1441: # and push the content into @randomlist
1442: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1443: $b_parser);
1444: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1445: push(@randomlist,$list_item);
1446: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1447: # $list_item</b>";
1448: }
1449: if($b_tok->[0] eq 'T') { # text
1450: # what to do with text in between tags?
1451: # print "<b>TEXT $b_tok->[1]</b><br />";
1452: }
1453: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1454: # print "<b>END-TAG $b_tok->[1]</b><br />";
1455: # }
1456: }
1.303 albertel 1457: if (@randomlist) {
1458: my @idx_arr = (0 .. $#randomlist);
1459: &Apache::structuretags::shuffle(\@idx_arr);
1460: my $bodytext = '';
1461: my $show=$#randomlist;
1462: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1463: $showarg--;
1464: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1465: for(0 .. $show) {
1466: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1467: }
1468: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1469: }
1470: } elsif ($target eq 'edit' ) {
1471: $result .=&Apache::edit::tag_start($target,$token);
1472: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1473: $token,5);
1474: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1475: } elsif ($target eq 'modified' ) {
1476: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1477: $safeeval,'show');
1478: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1479: }
1480: return $result;
1.7 tsai 1481: }
1482:
1483: sub shuffle {
1484: my $a=shift;
1485: my $i;
1.303 albertel 1486: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1487: &Apache::response::pushrandomnumber();
1.159 albertel 1488: for($i=@$a;--$i;) {
1489: my $j=int(&Math::Random::random_uniform() * ($i+1));
1490: next if $i == $j;
1491: @$a[$i,$j] = @$a[$j,$i];
1492: }
1.251 albertel 1493: &Apache::response::poprandomnumber();
1.7 tsai 1494: }
1.6 tsai 1495: }
1496:
1497: sub end_randomlist {
1.159 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1499: my $result;
1500: if ($target eq 'edit' ) {
1501: $result=&Apache::edit::tag_end($target,$token,
1502: 'End Randomly Parsed Block');
1503: }
1504: return $result;
1.6 tsai 1505: }
1506:
1.283 albertel 1507: sub ordered_show_check {
1508: my $last_part=$Apache::inputtags::partlist[-2];
1509: my $in_order=
1510: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1511: my $in_order_show=1;
1512: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1513: $in_order_show=&Apache::response::check_status($last_part);
1514: }
1515: return $in_order_show;
1516: }
1517:
1.11 albertel 1518: sub start_part {
1.326 albertel 1519: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1520: if (!$Apache::lonxml::metamode) {
1521: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1522: # duedates.
1523: }
1.159 albertel 1524: my $result='';
1.386 albertel 1525: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1526: $Apache::inputtags::part=$id;
1.177 albertel 1527: push(@Apache::inputtags::partlist,$id);
1528: @Apache::inputtags::response=();
1.159 albertel 1529: @Apache::inputtags::previous=();
1530: @Apache::inputtags::previous_version=();
1.405 albertel 1531: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1532: &Apache::response::reset_params();
1533:
1.159 albertel 1534: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1535: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1536: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1537: my $in_order_show=&ordered_show_check();
1.214 albertel 1538: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1539: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1540: &Apache::run::run($expression,$safeeval);
1.159 albertel 1541:
1542: if ($target eq 'meta') {
1.224 www 1543: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1544: return &Apache::response::mandatory_part_meta.
1545: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1546: } elsif ($target eq 'web' || $target eq 'grade' ||
1547: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1548: if ($hidden || !$in_order_show) {
1.326 albertel 1549: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1550: } else {
1551: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1552: push (@Apache::inputtags::status,$status);
1553: my $expression='$external::datestatus="'.$status.'";';
1554: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1555: &Apache::run::run($expression,$safeeval);
1.284 albertel 1556: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1557: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1558: }
1.216 albertel 1559: if (( $status eq 'CLOSED' ) ||
1560: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1561: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1562: ( $status eq 'BANNED') ||
1563: ( $status eq 'UNAVAILABLE') ||
1564: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1565: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1566: $style);
1.159 albertel 1567: if ( $target eq "web" ) {
1.211 albertel 1568: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1569: } elsif ( $target eq 'tex' ) {
1.284 albertel 1570: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1571: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1572: } else {
1.211 albertel 1573: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1574: }
1.159 albertel 1575: }
1576: } else {
1577: if ($target eq 'tex') {
1.284 albertel 1578: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1579: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1580: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1581: } else {
1582: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1583: }
1.195 sakharuk 1584: }
1.159 albertel 1585: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1586: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1587: my @allkeys = split /,/,$allkeys;
1588: my $allow_print_points = 0;
1589: foreach my $partial_key (@allkeys) {
1.230 albertel 1590: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1591: if ($1 ne '0') {$allow_print_points=1;}
1592: }
1593: }
1.275 albertel 1594: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1595: if (defined($maxtries) && $maxtries < 0) {
1596: $allow_print_points=0;
1597: }
1.302 albertel 1598: if (lc($env{'course.'.$env{'request.course.id'}.
1599: '.disableexampointprint'}) eq 'yes') {
1600: $allow_print_points=0;
1601: }
1.222 sakharuk 1602: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1603: } elsif ($target eq 'web') {
1.356 www 1604: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1605: }
1606: }
1607: }
1608: } elsif ($target eq 'edit') {
1609: $result.=&Apache::edit::tag_start($target,$token);
1610: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1611: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1612: ' '.
1613: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1614: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1615: } elsif ($target eq 'modified') {
1616: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1617: $safeeval,'id','display');
1.159 albertel 1618: if ($constructtag) {
1.225 albertel 1619: #limiting ids to only letters numbers, and space
1.224 www 1620: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1621: $result = &Apache::edit::rebuild_tag($token);
1622: }
1623: }
1624: return $result;
1.11 albertel 1625: }
1626:
1627: sub end_part {
1.159 albertel 1628: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1629: &Apache::lonxml::debug("in end_part $target ");
1630: my $status=$Apache::inputtags::status['-1'];
1631: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1632: my $in_order_show=&ordered_show_check();
1.321 albertel 1633: my $result;
1634: if (!$Apache::lonxml::metamode) {
1635: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1636: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1637: }
1.312 albertel 1638: if ($target eq 'grade') {
1.249 albertel 1639: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1640: !$hidden && $in_order_show) {
1.311 foxr 1641: $result.=&Apache::inputtags::grade;
1.249 albertel 1642: } else {
1643: # move any submission data to .hidden
1644: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1645: }
1.283 albertel 1646: } elsif (($target eq 'web' || $target eq 'tex') &&
1647: !$hidden && $in_order_show) {
1.159 albertel 1648: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1649: $target);
1.212 albertel 1650: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1651: $gradestatus='';
1652: }
1.311 foxr 1653: $result.=$gradestatus;
1.265 sakharuk 1654: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1655: } elsif ($target eq 'edit') {
1.311 foxr 1656: $result.=&Apache::edit::end_table();
1.322 albertel 1657: } elsif ($target eq 'modified') {
1658: $result .= $token->[2];
1.159 albertel 1659: }
1660: pop @Apache::inputtags::status;
1661: $Apache::inputtags::part='';
1.295 albertel 1662: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1663: return $result;
1.11 albertel 1664: }
1.1 albertel 1665:
1.25 albertel 1666: sub start_preduedate {
1.326 albertel 1667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1668: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1669: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1670: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1671: if (!$Apache::lonhomework::scantronmode &&
1672: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1673: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1674: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1675: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1676: }
1.24 albertel 1677: }
1.159 albertel 1678: return '';
1.24 albertel 1679: }
1680:
1.25 albertel 1681: sub end_preduedate {
1.159 albertel 1682: return '';
1.24 albertel 1683: }
1684:
1.369 foxr 1685: # In all the modes where <postanswerdate> text is
1686: # displayable, all we do is eat up the text between the start/stop
1687: # tags if the conditions are not right to display it.
1.25 albertel 1688: sub start_postanswerdate {
1.326 albertel 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1690: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1691: &Apache::lonnet::allowed('pav',
1692: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1693: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1694: $target eq 'tex' ) {
1.300 albertel 1695: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1696: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1697: (($target eq 'tex') && !$pav)) {
1.326 albertel 1698: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1699: }
1700: }
1701: return '';
1.24 albertel 1702: }
1703:
1.25 albertel 1704: sub end_postanswerdate {
1.159 albertel 1705: return '';
1.24 albertel 1706: }
1707:
1.25 albertel 1708: sub start_notsolved {
1.326 albertel 1709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1710: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1711: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1712: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1713: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1714: if ($gradestatus =~ /^correct/ &&
1715: &Apache::response::show_answer()) {
1.159 albertel 1716: &Apache::lonxml::debug("skipping");
1.326 albertel 1717: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1718: }
1.24 albertel 1719: }
1.159 albertel 1720: return '';
1.24 albertel 1721: }
1722:
1.25 albertel 1723: sub end_notsolved {
1.159 albertel 1724: return '';
1.24 albertel 1725: }
1726:
1727: sub start_solved {
1.326 albertel 1728: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1729: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1730: $target eq 'tex') {
1731: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1732: if ($gradestatus !~ /^correct/ ||
1733: !&Apache::response::show_answer()) {
1.326 albertel 1734: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1735: }
1.24 albertel 1736: }
1.159 albertel 1737: return '';
1.24 albertel 1738: }
1739:
1740: sub end_solved {
1.248 albertel 1741: return '';
1742: }
1743:
1744: sub start_problemtype {
1.326 albertel 1745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1746: my $result;
1.339 albertel 1747: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1748: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1749: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1750: if (!defined($mode)) { $mode='show'; }
1751: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1752: my $found=0;
1753: foreach my $type (split(',',$for)) {
1754: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1755: }
1756: if ($mode eq 'show' && !$found) {
1.326 albertel 1757: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1758: }
1759: if ($mode eq 'hide' && $found) {
1.326 albertel 1760: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1761: }
1762: } elsif ($target eq 'edit') {
1763: $result .=&Apache::edit::tag_start($target,$token);
1764: $result.=&Apache::edit::select_arg('Mode:','mode',
1765: [['show','Show'],
1766: ['hide','Hide']]
1767: ,$token);
1768: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1769: [ ['exam','Exam/Quiz Problem'],
1770: ['survey','Survey'],
1771: ['problem','Homework Problem'] ]
1772: ,$token);
1773: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1774: } elsif ($target eq 'modified') {
1775: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1776: $safeeval,'mode','for');
1777: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1778: }
1779: return $result;
1780: }
1781:
1782: sub end_problemtype {
1.159 albertel 1783: return '';
1.24 albertel 1784: }
1.34 albertel 1785:
1786: sub start_startouttext {
1.159 albertel 1787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1788: my @result=(''.'');
1789: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1790:
1791: my $nesting =
1792: &Apache::lonxml::set_state('outtext',
1793: &Apache::lonxml::get_state('outtext')+1);
1794: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1795: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1796: }
1.159 albertel 1797: return (@result);
1.34 albertel 1798: }
1.159 albertel 1799:
1.34 albertel 1800: sub end_startouttext {
1.326 albertel 1801: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1802: my $result='';
1803: my $text='';
1804:
1805: if ($target eq 'edit') {
1.326 albertel 1806: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1807: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1808: <td>".&mt('Delete:').
1.159 albertel 1809: &Apache::edit::deletelist($target,$token)
1810: ."</td>
1.42 albertel 1811: <td>".
1.159 albertel 1812: &Apache::edit::insertlist($target,$token).
1.362 albertel 1813: '</td><td align="right" valign="top">' .
1814: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1815: &Apache::edit::end_row().
1.362 albertel 1816: &Apache::edit::start_spanning_row()."\n".
1.255 www 1817: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1818: }
1819: if ($target eq 'modified') {
1.219 albertel 1820: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1821: }
1822: if ($target eq 'tex') {
1823: $result .= '\noindent ';
1824: }
1825: return $result;
1.34 albertel 1826: }
1.159 albertel 1827:
1.34 albertel 1828: sub start_endouttext {
1.159 albertel 1829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1830: my $result='';
1831: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1832: if ($target eq "modified") {
1833: $result='<endouttext />'.
1.377 albertel 1834: &Apache::edit::handle_insertafter('startouttext');
1835: }
1.404 albertel 1836:
1837: my $nesting =
1838: &Apache::lonxml::set_state('outtext',
1839: &Apache::lonxml::get_state('outtext')-1);
1840: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1841: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1842: &Apache::lonxml::set_state('outtext', 0);
1843: }
1.159 albertel 1844: return $result;
1.34 albertel 1845: }
1.159 albertel 1846:
1.34 albertel 1847: sub end_endouttext {
1.159 albertel 1848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1849: my @result=('','');
1850: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1851: return (@result);
1.34 albertel 1852: }
1.159 albertel 1853:
1.45 albertel 1854: sub delete_startouttext {
1.326 albertel 1855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1856: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1857: my $text=$$parser['-1']->get_text("/endouttext");
1858: my $ntoken=$$parser['-1']->get_token();
1859: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1860: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1861: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1862: # they did the last time round
1863: &Apache::lonxml::increasedepth($ntoken);
1864: &Apache::lonxml::decreasedepth($ntoken);
1865: return 1;
1.193 www 1866: }
1867:
1868: sub start_simpleeditbutton {
1869: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1870: my $result='';
1.284 albertel 1871: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1872: ($target eq 'web') &&
1.330 albertel 1873: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1874: my $url=$env{'request.noversionuri'};
1.193 www 1875: $url=~s/\?.*$//;
1.367 albertel 1876: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1877: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1878: '<a href="'.$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 1879: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1880: }
1881: return $result;
1882: }
1883:
1884: sub end_simpleeditbutton {
1885: return '';
1.45 albertel 1886: }
1.34 albertel 1887:
1.1 albertel 1888: 1;
1889: __END__
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