Annotation of loncom/homework/structuretags.pm, revision 1.453
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.453 ! bisitz 4: # $Id: structuretags.pm,v 1.452 2009/06/17 15:27:20 bisitz 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:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &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 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$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 $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.446 bisitz 206: my $pageheader = '';
1.344 albertel 207: if (defined($found{'body'})) {
208: $body_args{'skip_phases'}{'body'}=1;
209: } elsif (!defined($found{'body'})
210: && $env{'request.state'} eq 'construct') {
1.343 albertel 211: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 212: if ($env{'environment.remote'} ne 'off') {
213: $body_args{'only_body'} = 1;
214: }
1.450 bisitz 215: # Breadcrumbs for Construction Space
216: &Apache::lonhtmlcommon::clear_breadcrumbs();
217: &Apache::lonhtmlcommon::add_breadcrumb({
218: 'text' => 'Construction Space',
219: 'href' => &Apache::loncommon::authorspace(),
220: });
221: # FIXME Where are we?
222: # &Apache::lonhtmlcommon::add_breadcrumb({
223: # 'text' => 'Problem Editing', # 'Problem Testing'
224: # 'href' => '',
225: # });
226: $pageheader = &Apache::lonhtmlcommon::breadcrumbs()
1.446 bisitz 227: .&Apache::loncommon::head_subbox(
228: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 229: }
1.272 albertel 230: } elsif (!defined($found{'body'})) {
1.343 albertel 231: my %add_entries;
1.159 albertel 232: my $background=&Apache::lonxml::get_param('background',$parstack,
233: $safeeval);
1.343 albertel 234: if ($background ne '' ) {
235: $add_entries{'background'} = $background;
236: }
1.344 albertel 237:
1.290 albertel 238: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
239: $safeeval);
1.446 bisitz 240: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 241:
1.446 bisitz 242: $body_args{'bgcolor'} = $bgcolor;
243: # $body_args{'no_title'} = 1;
244: $body_args{'force_register'} = 1;
245: $body_args{'add_entries'} = \%add_entries;
246: if ($env{'environment.remote'} eq 'off'
247: && $env{'request.state'} eq 'construct') {
248: $body_args{'only_body'} = 1;
249: }
1.344 albertel 250: }
1.365 albertel 251: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 252: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
253: \%body_args);
1.446 bisitz 254: $page_start .= $pageheader;
1.344 albertel 255: if (!defined($found{'body'})
256: && $env{'request.state'} ne 'construct'
257: && ($target eq 'web' || $target eq 'webgrade')) {
258:
1.367 albertel 259: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 260: if ($symb eq '' && !$publicuser) {
261: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
262: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
263: $page_start .= $help;
1.159 albertel 264: }
1.344 albertel 265: }
266:
1.409 albertel 267: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 268: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 269: }
1.344 albertel 270:
1.159 albertel 271: my $form_tag_start;
272: if (!defined($found{'form'})) {
1.337 albertel 273: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 274: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 275: $form_tag_start.=$uri.'" ';
276: if ($target eq 'edit') {
277: $form_tag_start.=&Apache::edit::form_change_detection();
278: }
1.368 albertel 279: $form_tag_start.='>'."\n";
1.355 albertel 280:
281: my $symb=&Apache::lonnet::symbread();
282: if ($symb =~ /\S/) {
283: $symb=
284: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
285: $form_tag_start.=
1.368 albertel 286: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 287: }
1.159 albertel 288: }
1.343 albertel 289: return ($page_start,$form_tag_start);
1.105 albertel 290: }
291:
1.141 matthew 292: #use Time::HiRes();
1.105 albertel 293: sub get_resource_name {
1.159 albertel 294: my ($parstack,$safeeval)=@_;
1.388 foxr 295: my $name;
1.204 albertel 296: if (defined($Apache::lonhomework::name)) {
1.388 foxr 297: $name = $Apache::lonhomework::name;
298: } else {
299: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 300: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 301: if ($name eq '') {
302: $name=&Apache::lonnet::EXT('resource.title');
303: if ($name eq 'con_lost') { $name = ''; }
304: }
305: if ($name!~/\S+/) {
306: $name=$env{'request.uri'};
307: $name=~s-.*/([^/]+)$-$1-;
308: }
309: # The name has had html tags escaped:
310:
311: $name=~s/</</gs;
312: $name=~s/>/>/gs;
313:
314: $Apache::lonhomework::name=$name;
1.204 albertel 315: }
1.159 albertel 316: return $name;
1.105 albertel 317: }
318:
319: sub setup_rndseed {
1.159 albertel 320: my ($safeeval)=@_;
321: my $rndseed;
1.367 albertel 322: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 323: if ($env{'request.state'} eq "construct"
324: || $symb eq ''
325: || $Apache::lonhomework::type eq 'practice'
326: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 327: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 328: ['rndseed']);
1.284 albertel 329: $rndseed=$env{'form.rndseed'};
1.159 albertel 330: if (!$rndseed) {
1.162 albertel 331: $rndseed=$Apache::lonhomework::history{'rndseed'};
332: if (!$rndseed) {
333: $rndseed=time;
334: }
1.284 albertel 335: $env{'form.rndseed'}=$rndseed;
1.162 albertel 336: }
1.374 albertel 337: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
338: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 339: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 340: srand(time);
341: $rndseed=int(rand(2100000000));
1.284 albertel 342: $env{'form.rndseed'}=$rndseed;
343: delete($env{'form.resetdata'});
344: delete($env{'form.newrandomization'});
1.159 albertel 345: }
1.187 albertel 346: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 347: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 348: }
1.247 albertel 349: if ($Apache::lonhomework::history{'resource.CODE'}) {
350: $rndseed=&Apache::lonnet::rndseed();
351: }
1.221 albertel 352: if ($safeeval) {
353: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 354: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 355: }
1.159 albertel 356: }
357: return $rndseed;
1.105 albertel 358: }
359:
1.268 albertel 360: sub remember_problem_state {
361: return '
1.284 albertel 362: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
363: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
364: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 365: }
366:
1.423 www 367: sub problem_edit_buttons {
368: return '
1.408 albertel 369: <div class="LC_edit_problem_discards">
1.416 raeburn 370: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 371: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 372: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 373: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 374: </div>
375: <div class="LC_edit_problem_saves">
1.416 raeburn 376: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
377: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 378: </div>';
379: }
380:
381: sub problem_edit_header {
382: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
383: &Apache::structuretags::remember_problem_state().'
384: <div class="LC_edit_problem_header">
385: <div class="LC_edit_problem_header_title">
386: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
387: </div>'.
388: &problem_edit_buttons().'
1.453 ! bisitz 389: <hr />
1.409 albertel 390: '.&Apache::lonxml::message_location().'
1.408 albertel 391: </div>
392: '.
1.282 albertel 393: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 394: }
395:
396: sub problem_edit_footer {
1.412 albertel 397: return '</td></tr></table><br />
398: <div class="LC_edit_problem_footer">
1.453 ! bisitz 399: <hr />'.
1.423 www 400: &problem_edit_buttons().'
1.453 ! bisitz 401: <hr />
1.412 albertel 402: </div>
403: '.
404:
1.348 albertel 405: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 406: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 407: }
408:
1.235 albertel 409: sub option {
410: my ($value,$name) = @_;
411: my $result ="<option value='".$value."' ";
1.284 albertel 412: if ($env{'form.'.$name} eq $value) {
1.235 albertel 413: $result.=" selected='on' ";
414: }
415: $result.='>';
416: return $result;
417: }
418:
1.105 albertel 419: sub problem_web_to_edit_header {
1.159 albertel 420: my ($rndseed)=@_;
1.406 albertel 421: my $result .= '<div class="LC_edit_problem_header">';
422:
423: if (!$Apache::lonhomework::parsing_a_task) {
424: $result .=
425: '<div class="LC_edit_problem_header_title">'.
426: &mt('Problem Testing').
427: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
428: '</div>';
429: } else {
430: $result .=
431: '<div class="LC_edit_problem_header_title">'.
432: &mt('Task Testing').
433: '</div>';
434: }
435:
1.315 albertel 436: my $show_all_foils_text =
437: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 438: &mt('Show All Instances')
439: : &mt('Show All Foils');
1.315 albertel 440:
1.452 bisitz 441: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
442: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 443: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 444: $show_all.= ' /> '.$show_all_foils_text
445: .'</label></span>';
1.406 albertel 446:
447:
1.384 albertel 448:
1.406 albertel 449: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 450: if (!$Apache::lonhomework::parsing_a_task) {
451: $result.="
1.406 albertel 452: <div class='LC_edit_problem_header_row1'>
453: <span class=\"LC_nobreak\">
1.405 albertel 454: ".&mt("Problem Status:")."
1.235 albertel 455: <select name='problemstate'>
1.270 albertel 456: <option value=''></option>
1.235 albertel 457: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
458: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
459: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
460: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
461: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
462: </select>
1.406 albertel 463: </span>
464: <span class=\"LC_nobreak\">
1.405 albertel 465: ".&mt("Problem Type:")."
1.235 albertel 466: <select name='problemtype'>
1.270 albertel 467: <option value=''></option>
1.242 albertel 468: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 469: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 470: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 471: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 472: </select>
1.406 albertel 473: </span>
474: $show_all
475: </div>
476: <div class='LC_edit_problem_header_row2'>
477: <span class=\"LC_nobreak\">
1.405 albertel 478: ".&mt("Feedback Mode:")."
1.235 albertel 479: <select name='problemstatus'>
480: <option value=''></option>
1.242 albertel 481: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 482: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
483: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 484: </select>
1.406 albertel 485: </span>
486: ";
487:
1.376 albertel 488: } elsif ($Apache::lonhomework::parsing_a_task) {
489: $result.="
1.406 albertel 490: <div class='LC_edit_problem_header_row1'>
491: <span class=\"LC_nobreak\">
1.405 albertel 492: ".&mt("Problem Status:")."
1.376 albertel 493: <select name='problemstate'>
494: <option value=''></option>
495: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
496: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
497: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
498: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
499: </select>
1.406 albertel 500: </span>
501: $show_all
502: ";
503: }
504: $result.='
505: <span class="LC_nobreak">
506: '.&mt('Apply style file: ').'
507: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
508: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
509: </span>
1.422 www 510: </div>
511: <div class="LC_edit_problem_header_row1">'.
512: &Apache::lonxml::renderingoptions().'
1.406 albertel 513: </div>
514: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
515: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
516: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
517: </div>
1.453 ! bisitz 518: <hr />
1.406 albertel 519: <div class="LC_edit_problem_header_randomize_row">
520: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
521: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
522: <input type="text" name="rndseed" size="10" value="'.
523: $rndseed.'"
524: onchange="javascript:document.lonhomework.changerandseed.click()" />';
525:
526: if (!$Apache::lonhomework::parsing_a_task) {
527: my $numtoanalyze=$env{'form.numtoanalyze'};
528: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 529: $result .= '<span class="LC_nobreak">'.
530: &mt('[_1] for [_2] versions.',
1.416 raeburn 531: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 532: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
533: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 534: $numtoanalyze.'" size="5" />').
535: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
536: '</span>';
537:
1.313 albertel 538: }
1.406 albertel 539:
540: $result.='
541: </div>
1.453 ! bisitz 542: <hr />
1.447 bisitz 543: <div>';
1.416 raeburn 544: $result.='<input type="hidden" name="problemmode" value="view" />';
545: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
546: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
547: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
548: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 549: $result.='
550: </div>
1.453 ! bisitz 551: <hr />
1.409 albertel 552: '.&Apache::lonxml::message_location().'
1.406 albertel 553: </div>';
1.159 albertel 554: return $result;
1.48 albertel 555: }
556:
1.65 albertel 557: sub initialize_storage {
1.357 albertel 558: my ($given_symb) = @_;
1.353 albertel 559: undef(%Apache::lonhomework::results);
560: undef(%Apache::lonhomework::history);
1.357 albertel 561: my ($symb,$courseid,$domain,$name) =
1.367 albertel 562: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 563:
564: # anonymous users (CODEd exams) have no data
565: if ($name eq 'anonymous'
566: && !defined($domain)) {
567: return;
568: }
569:
1.333 albertel 570: if ($env{'request.state'} eq 'construct'
571: || $symb eq ''
572: || $Apache::lonhomework::type eq 'practice') {
573:
574: my $namespace = $symb || $env{'request.uri'};
575: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 576: ($env{'form.resetdata'} eq &mt('New Problem Variation')
577: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 578: $env{'form.newrandomization'} eq &mt('New Randomization')) {
579: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
580: &Apache::lonxml::debug("Attempt reset");
581: }
1.159 albertel 582: %Apache::lonhomework::history=
1.333 albertel 583: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 584: my ($temp)=keys %Apache::lonhomework::history ;
585: &Apache::lonxml::debug("Return message of $temp");
586: } else {
587: %Apache::lonhomework::history=
588: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
589: }
1.353 albertel 590:
1.159 albertel 591: #ignore error conditions
1.67 albertel 592: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 593: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 594: }
595:
1.435 jms 596: =pod
597:
598: =item finalize_storage()
599:
600: Stores away the result has to a student's environment
601: checks form.grade_ for specific values, other wises stores
602: to the running users environment
603: Will increment totals for attempts, students, and corrects
604: if running user has student role.
605:
606: =cut
607:
608:
1.65 albertel 609: sub finalize_storage {
1.357 albertel 610: my ($given_symb) = @_;
1.159 albertel 611: my $result;
1.289 albertel 612: if (%Apache::lonhomework::results) {
1.323 albertel 613: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
614: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 615: my ($symb,$courseid,$domain,$name) =
1.367 albertel 616: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 617: if ($env{'request.state'} eq 'construct'
618: || $symb eq ''
619: || $Apache::lonhomework::type eq 'practice') {
620: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 621: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 622: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 623: $namespace,'',$domain,$name);
1.159 albertel 624: &Apache::lonxml::debug('Construct Store return message:'.$result);
625: } else {
626: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
627: $symb,$courseid,$domain,$name);
628: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 629: if ($env{'request.role'} =~/^st/) {
630: &store_aggregates($symb,$courseid);
631: }
1.159 albertel 632: }
1.323 albertel 633: } else {
634: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 635: }
1.159 albertel 636: return $result;
1.65 albertel 637: }
638:
1.435 jms 639: =pod
640:
641: item store_aggregates()
642:
643: Sends hash of values to be incremented in nohist_resourcetracker.db
644: for the course. Increments total number of attempts, unique students
645: and corrects for each part for an instance of a problem, as appropriate.
646:
647: =cut
648:
1.285 raeburn 649: sub store_aggregates {
650: my ($symb,$courseid) = @_;
1.286 albertel 651: my %aggregate;
652: my @parts;
1.288 albertel 653: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
654: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 655: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 656: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 657: push(@parts, $1);
1.285 raeburn 658: }
659: }
1.286 albertel 660: foreach my $part (@parts) {
661: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
662: eq 'APPROX_ANS' ||
663: $Apache::lonhomework::results{'resource.'.$part.'.award'}
664: eq 'EXACT_ANS') {
1.287 albertel 665: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 666: }
1.286 albertel 667: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 668: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 669: } else {
1.293 albertel 670: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 671: if ($last_reset) {
1.293 albertel 672: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 673: $aggregate{$symb."\0".$part."\0users"} = 1;
674: }
675: }
1.285 raeburn 676: }
1.287 albertel 677: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 678: }
1.292 raeburn 679: if (keys (%aggregate) > 0) {
1.289 albertel 680: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 681: $cdomain,$cname);
682: }
683: }
1.289 albertel 684:
1.65 albertel 685: sub checkout_msg {
1.211 albertel 686: my %lt=&Apache::lonlocal::texthash(
687: 'resource'=>'The resource needs to be checked out',
688: '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.',
689: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
690: 'checkout'=>'Check out Exam for Viewing',
691: 'checkout?'=>'Check out Exam?');
1.352 albertel 692: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 693: return (<<ENDCHECKOUT);
1.211 albertel 694: <h2>$lt{'resource'}</h2>
695: <p>$lt{'id_expln'}</p>
1.449 bisitz 696: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 697: <form name="checkout" method="post" action="$uri">
1.91 albertel 698: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 699: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 700: </form>
701: ENDCHECKOUT
702: }
703:
1.252 albertel 704: sub firstaccess_msg {
1.253 albertel 705: my ($time,$symb)=@_;
1.414 albertel 706: my $result;
707: my @interval=&Apache::lonnet::EXT("resource.0.interval");
708: if ($interval[1] eq 'map') {
709: my ($map)=&Apache::lonnet::decode_symb($symb);
710: my $foldertitle=&Apache::lonnet::gettitle($map);
711:
712: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 713: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
714: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
715: ,$foldertitle,$time)."</h2>";
1.414 albertel 716: } elsif ($interval[1] eq 'course') {
717: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 718: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
719: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
720: ,$course,$time)."</h2>";
1.414 albertel 721: } else {
722: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 723: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
724: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
725: ,$title,$time)."</h2>";
1.414 albertel 726: }
1.352 albertel 727: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 728: my $buttontext = &mt('Show Resource');
729: my $timertext = &mt('Start Timer?');
1.414 albertel 730: $result .= (<<ENDCHECKOUT);
1.444 bisitz 731: <form name="markaccess" method="post" action="$uri">
1.252 albertel 732: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 733: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 734: </form>
735: ENDCHECKOUT
1.414 albertel 736: return $result;
1.252 albertel 737: }
738:
1.204 albertel 739: sub init_problem_globals {
740: my ($type)=@_;
741: #initialize globals
1.308 foxr 742: # For problems, we start out in part 0 (outside a <part> tag).
743: # and part 0 is used to describe the main body of the <problem>
744: #
1.204 albertel 745: if ($type eq 'problem') {
746: $Apache::inputtags::part='0';
747: @Apache::inputtags::partlist=('0');
1.405 albertel 748: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 749: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 750:
1.266 albertel 751: } elsif ($type eq 'library') {
1.204 albertel 752: $Apache::inputtags::part='';
753: @Apache::inputtags::partlist=();
1.405 albertel 754: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 755: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 756:
1.304 albertel 757: } elsif ($type eq 'Task') {
758: $Apache::inputtags::part='0';
759: @Apache::inputtags::partlist=('0');
1.405 albertel 760: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 761: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 762: }
763: @Apache::inputtags::responselist = ();
764: @Apache::inputtags::importlist = ();
765: @Apache::inputtags::previous=();
766: @Apache::inputtags::previous_version=();
767: $Apache::structuretags::printanswer='No';
768: @Apache::structuretags::whileconds=();
769: @Apache::structuretags::whilebody=();
770: @Apache::structuretags::whileline=();
771: $Apache::lonhomework::scantronmode=0;
772: undef($Apache::lonhomework::name);
1.358 albertel 773: undef($Apache::lonhomework::default_type);
774: undef($Apache::lonhomework::type);
1.204 albertel 775: }
776:
777: sub reset_problem_globals {
778: my ($type)=@_;
779: undef(%Apache::lonhomework::history);
780: undef(%Apache::lonhomework::results);
781: undef($Apache::inputtags::part);
1.208 albertel 782: #don't undef this, lonhomework.pm takes care of this, we use this to
783: #detect if we try to do 2 problems in one file
784: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 785: undef($Apache::lonhomework::name);
1.358 albertel 786: undef($Apache::lonhomework::default_type);
787: undef($Apache::lonhomework::type);
788: undef($Apache::lonhomework::scantronmode);
789: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 790: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 791: }
792:
1.241 albertel 793: sub set_problem_state {
1.240 albertel 794: my ($part)=@_;
1.284 albertel 795: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 796: $Apache::lonhomework::history{"resource.$part.solved"}=
797: 'correct_by_student';
798: }
799: }
800:
1.241 albertel 801: sub get_problem_status {
802: my ($part)=@_;
1.267 albertel 803: my $problem_status;
1.284 albertel 804: if ($env{'request.state'} eq 'construct' &&
805: defined($env{'form.problemstatus'})) {
806: $problem_status=$env{'form.problemstatus'};
1.267 albertel 807: } else {
808: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
809: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 810: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 811: }
812: return $problem_status;
813: }
814:
1.9 albertel 815: sub start_problem {
1.326 albertel 816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 817:
1.311 foxr 818: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 819: if (!$Apache::lonxml::metamode) {
820: &Apache::lonxml::startredirection();
821: }
1.311 foxr 822:
1.308 foxr 823: # Problems don't nest and we don't allow more than one <problem> in
824: # a .problem file.
825: #
1.184 albertel 826: if ( $Apache::inputtags::part ne '' ||
827: $Apache::lonhomework::parsing_a_problem) {
828: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 829: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 830: return '';
831: }
1.184 albertel 832:
833: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 834: &init_problem_globals('problem');
1.166 albertel 835:
1.284 albertel 836: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 837: $Apache::lonhomework::scantronmode=1;
838: }
1.161 albertel 839:
1.159 albertel 840: if ($target ne 'analyze') {
1.415 raeburn 841: my $type = &Apache::lonnet::EXT('resource.0.type');
842: $Apache::lonhomework::type=$type;
1.284 albertel 843: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 844: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 845: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 846: }
1.332 albertel 847: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 848: }
1.164 albertel 849: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 850: my $uri=$env{'request.uri'};
1.159 albertel 851: if ($uri=~/\.(\w+)$/) {
852: $Apache::lonhomework::type=$1;
853: &Apache::lonxml::debug("Using type of $1");
854: } else {
855: $Apache::lonhomework::type='problem';
856: &Apache::lonxml::debug("Using default type, problem, :$uri:");
857: }
1.87 albertel 858: }
1.301 albertel 859: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 860:
1.363 albertel 861: &initialize_storage();
1.389 albertel 862: if ($target ne 'analyze'
863: && $env{'request.state'} eq 'construct') {
864: &set_problem_state('0');
865: }
866:
1.366 albertel 867: if ($target eq 'web') {
868: &Apache::lonxml::debug(" grading history ");
869: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
870: }
1.363 albertel 871:
1.159 albertel 872: #added vars to the scripting enviroment
1.213 albertel 873: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 874: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 875: &Apache::run::run($expression,$safeeval);
1.159 albertel 876: my $status;
877: my $accessmsg;
878:
1.343 albertel 879: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 880: my ($result,$form_tag_start);
1.354 albertel 881: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
882: || $target eq 'edit') {
1.350 albertel 883: ($result,$form_tag_start) =
884: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
885: $name);
886: }
887:
1.284 albertel 888: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 889:
890: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
891: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
892: $target eq 'tex') {
893: #handle exam checkout
894: if ($Apache::lonhomework::type eq 'exam') {
895: my $token=
896: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 897: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 898: $token=&Apache::lonxml::maketoken();
899: $Apache::lonhomework::history{"resource.0.outtoken"}=
900: $token;
901: }
1.343 albertel 902: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 903: }
1.284 albertel 904: if ($env{'form.markaccess'}) {
1.414 albertel 905: my @interval=&Apache::lonnet::EXT("resource.0.interval");
906: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 907: }
1.159 albertel 908: #handle rand seed in construction space
909: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 910: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 911: if ($env{'request.state'} ne "construct" &&
912: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 913: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
914: $rndseed.'" />'.
915: '<input type="submit" name="resetdata"
1.334 albertel 916: value="'.&mt('New Problem Variation').'" />';
917: if (exists($env{'form.username'})) {
918: $form_tag_start.=
1.164 albertel 919: '<input type="hidden" name="username"
1.284 albertel 920: value="'.$env{'form.username'}.'" />';
1.334 albertel 921: }
1.333 albertel 922: if ($env{'request.role.adv'}) {
1.267 albertel 923: $form_tag_start.=
1.440 bisitz 924: ' <label><input type="checkbox" name="showallfoils"';
1.284 albertel 925: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 926: $form_tag_start.=' checked="checked"';
1.267 albertel 927: }
1.300 albertel 928: $form_tag_start.= ' />'.&mt(' Show All Foils').
929: '</label>';
1.267 albertel 930: }
1.417 www 931: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 932: $form_tag_start.=&practice_problem_header();
1.417 www 933: }
1.267 albertel 934: $form_tag_start.='<hr />';
1.162 albertel 935: }
1.324 albertel 936:
937: ($status,$accessmsg,my $slot_name,my $slot) =
938: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 939: push (@Apache::inputtags::status,$status);
1.324 albertel 940:
1.159 albertel 941: my $expression='$external::datestatus="'.$status.'";';
942: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
943: &Apache::run::run($expression,$safeeval);
944: &Apache::lonxml::debug("Got $status");
1.324 albertel 945:
1.159 albertel 946: if (( $status eq 'CLOSED' ) ||
947: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 948: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 949: ( $status eq 'BANNED') ||
1.216 albertel 950: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 951: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 952: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 953: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
954: $style);
1.159 albertel 955: if ( $target eq "web" ) {
1.343 albertel 956: my $msg;
1.159 albertel 957: if ($status eq 'UNAVAILABLE') {
1.245 albertel 958: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 959: } elsif ($status eq 'NOT_IN_A_SLOT') {
960: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 961: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 962: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 963: }
1.216 albertel 964: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 965: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 966: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 967: $msg.=&checkout_msg();
1.252 albertel 968: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 969: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 970: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 971: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 972: }
973: $result.=$msg.'<br />';
974: } elsif ($target eq 'tex') {
1.332 albertel 975: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
976: : '\begin{minipage}{\textwidth}';
1.443 foxr 977: $result.='\noindent \vskip 1 mm '.
1.332 albertel 978: $startminipage.'\vskip 0 mm';
1.159 albertel 979: if ($status eq 'UNAVAILABLE') {
1.211 albertel 980: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 981: } else {
1.211 albertel 982: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 983: }
984: }
1.324 albertel 985: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 986: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
987: $style);
1.324 albertel 988: if ($target eq 'web') {
1.375 albertel 989: $result .=
990: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 991: } elsif ($target eq 'grade') {
992: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
993: 'problem');
994: }
1.159 albertel 995: } elsif ($target eq 'web') {
1.360 albertel 996: if ($status eq 'CAN_ANSWER'
997: && $slot_name ne ''
998: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
999: # unproctored slot access, self checkin
1000: &Apache::bridgetask::check_in('problem',undef,undef,
1001: $slot_name);
1002: }
1.368 albertel 1003: $result.="\n $form_tag_start \t".
1.227 albertel 1004: '<input type="hidden" name="submitted" value="yes" />';
1005: # create a page header and exit
1.284 albertel 1006: if ($env{'request.state'} eq "construct") {
1007: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1008: if ($Apache::lonhomework::type eq 'practice') {
1009: $result.= '<input type="submit" name="resetdata" '.
1010: 'value="'.&mt('New Problem Variation').'" />'.
1011: &practice_problem_header().'<hr />';
1012: }
1.227 albertel 1013: }
1014: # if we are viewing someone else preserve that info
1.284 albertel 1015: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1016: foreach my $field ('symb','courseid','domain','username') {
1017: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1018: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1019: }
1020: }
1021: } elsif ($target eq 'tex') {
1.319 foxr 1022: $result .= 'INSERTTEXFRONTMATTERHERE';
1023:
1.99 sakharuk 1024: }
1.159 albertel 1025: } elsif ($target eq 'edit') {
1.343 albertel 1026: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1027: $Apache::lonxml::warnings_error_header=
1028: &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 1029: my $temp=&Apache::edit::insertlist($target,$token);
1030: $result.=$temp;
1031: } elsif ($target eq 'modified') {
1032: $result=$token->[4];
1033: } else {
1034: # page_start returned a starting result, delete it if we don't need it
1035: $result = '';
1.99 sakharuk 1036: }
1.159 albertel 1037: return $result;
1.9 albertel 1038: }
1039:
1040: sub end_problem {
1.159 albertel 1041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1042: my $result;
1.310 foxr 1043:
1.321 albertel 1044: if (!$Apache::lonxml::metamode) {
1045: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1046: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1047: }
1.319 foxr 1048:
1049: if ($target eq 'tex') {
1.321 albertel 1050: # Figure out the front matter and replace the
1051: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1052: # this in end_problem because whether or not we display due
1053: # dates depends on whether due dates have already been
1054: # displayed in the problem parts.
1055:
1.319 foxr 1056: my $frontmatter = '';
1057: my $startminipage = '';
1058: if (not $env{'form.problem_split'}=~/yes/) {
1059: $startminipage = '\begin{minipage}{\textwidth}';
1060: }
1061: my $id = $Apache::inputtags::part;
1062: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1063: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1064: my @packages = split /,/,$packages;
1065: my $allow_print_points = 0;
1066: foreach my $partial_key (@packages) {
1067: if ($partial_key=~m/^part_0$/) {
1068: $allow_print_points=1;
1069: }
1070: }
1071: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1072: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1073: if (lc($env{'course.'.$env{'request.course.id'}.
1074: '.disableexampointprint'}) eq 'yes') {
1075: $allow_print_points=0;
1076: }
1077: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1078: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1079: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1080: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1081:
1082: # Figure out what the due date is and if we need to print
1083: # it in the problem header. We have been logging the
1084: # last due date written to file.
1085:
1086: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1087: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1088: my $duedate_text = &mt('Due date: [_1]'
1089: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1090: my $temp_file;
1091: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1092:
1093: # Figure out what the last printed due date is or set it
1094: # to the epoch if no duedates have been printed.
1095:
1096: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1097: if (-e $filename) {
1098: $temp_file = Apache::File->new($filename);
1099: my @due_file = <$temp_file>;
1100: $due_file_content = $due_file[$#due_file];
1101: chomp $due_file_content;
1102: }
1103:
1104: # We display the due date iff it is not the same as the last
1105: # duedate in problem header ($due_file_content), and
1106: # none of our parts displayed a duedate.
1107: #
1108: my $parts_with_displayduedate;
1109: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1110: $parts_with_displayduedate =
1111: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1112: } else {
1113: $parts_with_displayduedate = 0;
1114: }
1115: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1116: $temp_file = Apache::File->new('>'.$filename);
1117: print $temp_file "$duetime\n";
1118: if (not $env{'request.symb'} =~ m/\.page_/) {
1119: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1120: $frontmatter .= $begin_doc.
1.448 bisitz 1121: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1122: } else {
1123: $frontmatter.= $begin_doc.$toc_line;
1124: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1125: }
1126: } else {
1.448 bisitz 1127: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1128: }
1129: } else {
1130: if (not $env{'request.symb'} =~ m/\.page_/) {
1131: $frontmatter .= $begin_doc.$toc_line;
1132: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1133: } else {
1.381 albertel 1134: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1135: }
1136: }
1137: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1138: }
1139:
1.159 albertel 1140: my $status=$Apache::inputtags::status['-1'];
1141: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1142: $target eq 'tex') {
1.249 albertel 1143: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1144: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1145: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1146: &Apache::inputtags::grade;
1.324 albertel 1147: } elsif ($status eq 'NEEDS_CHECKIN') {
1148: # no need to grade, and don't want to hide data
1.249 albertel 1149: } else {
1150: # move any submission data to .hidden
1151: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1152: }
1.159 albertel 1153: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1154: $Apache::inputtags::part eq '0' &&
1.252 albertel 1155: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1156: # if part is zero, no <part>s existed, so we need show the current
1157: # grading status
1158: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1159: $result.= $gradestatus;
1160: }
1161: if (
1.284 albertel 1162: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1163: ($target eq 'answer') || ($target eq 'tex')
1164: ) {
1.227 albertel 1165: if ($target ne 'tex' &&
1.284 albertel 1166: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1167: $result.="</form>";
1.348 albertel 1168: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1169: }
1170: if ($target eq 'web') {
1.346 albertel 1171: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1172: } elsif ($target eq 'tex') {
1.178 sakharuk 1173: my $endminipage = '';
1.284 albertel 1174: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1175: $endminipage = '\end{minipage}';
1176: }
1.284 albertel 1177: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1178: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1179: } else {
1.262 sakharuk 1180: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1181: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1182: $result .= $endminipage.'\end{document} ';
1183: } else {
1.382 albertel 1184: $result .= $endminipage;
1.262 sakharuk 1185: }
1.159 albertel 1186: }
1187: }
1188: }
1189: if ($target eq 'grade') {
1190: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1191: &finalize_storage();
1192: }
1.284 albertel 1193: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1194: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1195: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1196: # normally we get it from above, but in CSTR
1.172 albertel 1197: # we always show answer mode too.
1.159 albertel 1198: }
1199: } elsif ($target eq 'meta') {
1200: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1201: @Apache::inputtags::response=();
1.159 albertel 1202: $result=&Apache::response::mandatory_part_meta;
1203: }
1.215 albertel 1204: $result.=&Apache::response::meta_part_order();
1.258 albertel 1205: $result.=&Apache::response::meta_response_order();
1.159 albertel 1206: } elsif ($target eq 'edit') {
1207: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1208: $result .= &problem_edit_footer();
1.320 albertel 1209: } elsif ($target eq 'modified') {
1210: $result .= $token->[2];
1.159 albertel 1211: }
1.155 albertel 1212:
1.284 albertel 1213: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1214: &Apache::inputtags::check_for_duplicate_ids();
1215: }
1.204 albertel 1216:
1217: &reset_problem_globals('problem');
1.159 albertel 1218:
1219: return $result;
1.48 albertel 1220: }
1221:
1.108 albertel 1222:
1.48 albertel 1223: sub start_library {
1.159 albertel 1224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1225: my ($result,$form_tag_start);
1.371 albertel 1226: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1227: &init_problem_globals('library');
1228: $Apache::lonhomework::type='problem';
1229: }
1.159 albertel 1230: if ($target eq 'edit') {
1.343 albertel 1231: ($result,$form_tag_start)=
1232: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1233: 'Edit');
1234: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1235: my $temp=&Apache::edit::insertlist($target,$token);
1236: $result.=$temp;
1237: } elsif ($target eq 'modified') {
1238: $result=$token->[4];
1.340 albertel 1239: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1240: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1241: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1242: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1243: ($result,$form_tag_start)=
1244: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1245: $name);
1.159 albertel 1246: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1247: $result.=" \n $form_tag_start".
1.159 albertel 1248: '<input type="hidden" name="submitted" value="yes" />';
1249: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1250: if ($Apache::lonhomework::type eq 'practice') {
1251: $result.= '<input type="submit" name="resetdata" '.
1252: 'value="'.&mt('New Problem Variation').'" />'.
1253: &practice_problem_header().'<hr />';
1254: }
1.159 albertel 1255: }
1256: return $result;
1.48 albertel 1257: }
1258:
1259: sub end_library {
1.159 albertel 1260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1261: my $result='';
1262: if ($target eq 'edit') {
1263: $result=&problem_edit_footer();
1.371 albertel 1264: } elsif ($target eq 'web'
1265: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1266: && $env{'request.state'} eq "construct") {
1.349 albertel 1267: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1268: }
1.371 albertel 1269: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1270: &reset_problem_globals('library');
1271: }
1.159 albertel 1272: return $result;
1.197 www 1273: }
1274:
1275: sub start_definetag {
1.326 albertel 1276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1277:
1278: my $result;
1279:
1280: my $name = $token->[2]->{'name'};
1.326 albertel 1281: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1282: if ($target eq 'web') {
1283: if ($name=~/^\//) {
1284: $result=
1285: '<br /><table class="LC_sty_end"><tr><th>'.
1286: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1287: } else {
1288: $result=
1289: '<br /><table class="LC_sty_begin"><tr><th>'.
1290: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1291: }
1292: $skip = &HTML::Entities::encode($skip, '<>&"');
1293: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1294: }
1295: return $result;
1296: }
1297:
1298: sub end_definetag {
1299: return '';
1.1 albertel 1300: }
1301:
1302: sub start_block {
1.201 albertel 1303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1304:
1305: my $result;
1.1 albertel 1306:
1.339 albertel 1307: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1308: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1309: my $code = $token->[2]->{'condition'};
1.385 albertel 1310: if (defined($code) && $code ne '') {
1.137 albertel 1311: if (!$Apache::lonxml::default_homework_loaded) {
1312: &Apache::lonxml::default_homework_load($safeeval);
1313: }
1.131 albertel 1314: $result = &Apache::run::run($code,$safeeval);
1315: &Apache::lonxml::debug("block :$code: returned :$result:");
1316: } else {
1317: $result='1';
1318: }
1319: if ( ! $result ) {
1.201 albertel 1320: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1321: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1322: }
1323: $result='';
1324: } elsif ($target eq 'edit') {
1325: $result .=&Apache::edit::tag_start($target,$token);
1326: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1327: $token,40);
1328: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1329: } elsif ($target eq 'modified') {
1330: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1331: $safeeval,'condition');
1332: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1333: }
1.131 albertel 1334: return $result;
1.1 albertel 1335: }
1336:
1337: sub end_block {
1.167 www 1338: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1339: my $result;
1340: if ($target eq "edit") {
1341: $result.= &Apache::edit::tag_end($target,$token,'');
1342: }
1343: return $result;
1344: }
1345:
1346: sub start_languageblock {
1.201 albertel 1347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1348:
1349: my $result;
1350:
1.339 albertel 1351: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1352: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1353: my $include = $token->[2]->{'include'};
1354: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1355: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1356: # This should not even happen, since we should at least have the server language
1.398 www 1357: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1358: # Now loop over all languages in order of preference
1359: foreach my $preferred_language (@preferred_languages) {
1.394 www 1360: # If the languageblock has no arguments, show the contents
1.399 www 1361: $result=1;
1362: my $found=0;
1.394 www 1363: # Do we have an include argument?
1.398 www 1364: if ($include) {
1.394 www 1365: # If include is specified, by default, don't render the block
1.399 www 1366: $result=0;
1.398 www 1367: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1368: # ... but if my preferred language is included, render it
1.398 www 1369: if ($included_language eq $preferred_language) {
1.399 www 1370: $result=1;
1371: $found=1;
1.398 www 1372: }
1373: }
1374: }
1.394 www 1375: # Do we have an exclude argument?
1.398 www 1376: if ($exclude) {
1.399 www 1377: $result=1;
1.398 www 1378: foreach my $excluded_language (split(/\,/,$exclude)) {
1379: if ($excluded_language eq $preferred_language) {
1.399 www 1380: $result=0;
1381: $found=1;
1.398 www 1382: }
1383: }
1384: }
1.399 www 1385: if ($found) { last; }
1.398 www 1386: }
1.201 albertel 1387: if ( ! $result ) {
1388: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1389: $style);
1390: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1391: }
1392: $result='';
1.167 www 1393: } elsif ($target eq 'edit') {
1394: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1395: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1396: $token,40);
1.211 albertel 1397: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1398: $token,40);
1399: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1400: } elsif ($target eq 'modified') {
1401: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1402: $safeeval,'include',
1403: 'exclude');
1.167 www 1404: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1405: }
1406: return $result;
1407: }
1408:
1409: sub end_languageblock {
1.170 www 1410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1411: my $result;
1.201 albertel 1412: if ($target eq "edit") {
1.170 www 1413: $result.= &Apache::edit::tag_end($target,$token,'');
1414: }
1415: return $result;
1416: }
1417:
1.397 albertel 1418: {
1419: my %available_texts;
1420: sub start_translated {
1421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1422: &Apache::lonxml::register('Apache::structuretags',('lang'));
1423: undef(%available_texts);
1424: }
1425:
1426: sub end_translated {
1427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1428: my $result;
1429: #show the translation on viewable targets
1430: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1431: # or non-viewable targets, if it's embedded in something that
1432: # wants the output
1433: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1434: && &Apache::lonxml::in_redirection() ) ) {
1435: my @possibilities = keys(%available_texts);
1436: my $which =
1437: &Apache::loncommon::languages(\@possibilities) || 'default';
1438: $result = $available_texts{$which};
1439: }
1440: undef(%available_texts);
1441: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1442: return $result;
1443: }
1444:
1445:
1446: sub start_lang {
1447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1448: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1449: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1450: &Apache::lonxml::startredirection();
1451: }
1452: return '';
1453: }
1454:
1455: sub end_lang {
1456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1457: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1458: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1459: my $result = &Apache::lonxml::endredirection();
1460: my $which = &Apache::lonxml::get_param('which',$parstack,
1461: $safeeval);
1.431 raeburn 1462: if ($which=~/\w/) {
1463: $available_texts{$which} = $result;
1464: }
1465: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1466: $safeeval);
1467: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1468: if ($language=~/\w/) {
1469: $available_texts{$language} = $result;
1470: }
1.427 bisitz 1471: }
1472:
1.397 albertel 1473: }
1474: return '';
1475: }
1476: }
1477:
1.170 www 1478: sub start_instructorcomment {
1.201 albertel 1479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1480:
1481: my $result;
1482:
1.339 albertel 1483: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1484: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1485: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1486: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1487: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1488: $parser,$style);
1.170 www 1489: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1490: }
1491: $result='';
1492: } elsif ($target eq 'edit') {
1493: $result .=&Apache::edit::tag_start($target,$token);
1494: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1495: }
1496: return $result;
1497: }
1498:
1499: sub end_instructorcomment {
1.159 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1501: my $result;
1502: if ($target eq "edit") {
1503: $result.= &Apache::edit::tag_end($target,$token,'');
1504: }
1505: return $result;
1.4 tsai 1506: }
1507:
1508: sub start_while {
1.326 albertel 1509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1510:
1.160 albertel 1511: my $result;
1.339 albertel 1512: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1513: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1514: my $code = $token->[2]->{'condition'};
1.4 tsai 1515:
1.160 albertel 1516: push( @Apache::structuretags::whileconds, $code);
1517: if (!$Apache::lonxml::default_homework_loaded) {
1518: &Apache::lonxml::default_homework_load($safeeval);
1519: }
1520: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1521: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1522: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1523: push( @Apache::structuretags::whileline, $token->[5]);
1524: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1525: if ( $result ) {
1526: &Apache::lonxml::newparser($parser,\$bodytext);
1527: }
1528: } elsif ($target eq 'edit') {
1529: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1530: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1531: $token,40);
1532: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1533: } elsif ($target eq 'modified') {
1534: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1535: $safeeval,'condition');
1536: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1537: }
1.160 albertel 1538: return $result;
1.4 tsai 1539: }
1540:
1541: sub end_while {
1.159 albertel 1542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1543: my $result;
1544:
1.339 albertel 1545: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1546: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1547: my $code = pop(@Apache::structuretags::whileconds);
1548: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1549: my $line = pop(@Apache::structuretags::whileline);
1550: my $return = &Apache::run::run($code,$safeeval);
1551: my $starttime=time;
1552: my $error=0;
1553: while ($return) {
1554: if (time-$starttime >
1555: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1556: $return = 0; $error=1; next;
1.161 albertel 1557: }
1558: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1559: if ($target eq 'grade' || $target eq 'answer' ||
1560: $target eq 'analyze') {
1561: # grade/answer/analyze should produce no output but if we
1562: # are redirecting, the redirecter should know what to do
1563: # with the output
1564: if (!$Apache::lonxml::redirection) { undef($result); }
1565: }
1.161 albertel 1566: $return = &Apache::run::run($code,$safeeval);
1567: }
1568: if ($error) {
1.430 bisitz 1569: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1570: }
1571: } elsif ($target eq "edit") {
1572: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1573: }
1.160 albertel 1574: return $result;
1.1 albertel 1575: }
1.6 tsai 1576:
1.160 albertel 1577: # <randomlist show="1">
1.6 tsai 1578: # <tag1>..</tag1>
1579: # <tag2>..</tag2>
1580: # <tag3>..</tag3>
1.160 albertel 1581: # ...
1.6 tsai 1582: # </randomlist>
1583: sub start_randomlist {
1.326 albertel 1584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1585: my $result;
1.339 albertel 1586: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1587: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1588: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1589: my $b_parser= HTML::LCParser->new(\$body);
1590: $b_parser->xml_mode(1);
1591: $b_parser->marked_sections(1);
1.159 albertel 1592: my $b_tok;
1593: my @randomlist;
1594: my $list_item;
1595: while($b_tok = $b_parser->get_token() ) {
1596: if($b_tok->[0] eq 'S') { # start tag
1597: # get content of the tag until matching end tag
1598: # get all text upto the matching tag
1599: # and push the content into @randomlist
1600: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1601: $b_parser);
1602: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1603: push(@randomlist,$list_item);
1604: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1605: # $list_item</b>";
1606: }
1607: if($b_tok->[0] eq 'T') { # text
1608: # what to do with text in between tags?
1609: # print "<b>TEXT $b_tok->[1]</b><br />";
1610: }
1611: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1612: # print "<b>END-TAG $b_tok->[1]</b><br />";
1613: # }
1614: }
1.303 albertel 1615: if (@randomlist) {
1616: my @idx_arr = (0 .. $#randomlist);
1617: &Apache::structuretags::shuffle(\@idx_arr);
1618: my $bodytext = '';
1619: my $show=$#randomlist;
1620: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1621: $showarg--;
1622: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1623: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1624: my @currlist;
1625: my $part = $Apache::inputtags::part;
1626: if ($part ne '') {
1627: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1628: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1629: if (!(grep(/^\Q$part\E$/,@currlist))) {
1630: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1631: }
1632: } else {
1633: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1634: }
1635: }
1636: }
1.303 albertel 1637: for(0 .. $show) {
1638: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1639: }
1640: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1641: }
1642: } elsif ($target eq 'edit' ) {
1643: $result .=&Apache::edit::tag_start($target,$token);
1644: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1645: $token,5);
1646: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1647: } elsif ($target eq 'modified' ) {
1648: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1649: $safeeval,'show');
1650: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1651: }
1652: return $result;
1.7 tsai 1653: }
1654:
1655: sub shuffle {
1656: my $a=shift;
1657: my $i;
1.303 albertel 1658: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1659: &Apache::response::pushrandomnumber();
1.159 albertel 1660: for($i=@$a;--$i;) {
1661: my $j=int(&Math::Random::random_uniform() * ($i+1));
1662: next if $i == $j;
1663: @$a[$i,$j] = @$a[$j,$i];
1664: }
1.251 albertel 1665: &Apache::response::poprandomnumber();
1.7 tsai 1666: }
1.6 tsai 1667: }
1668:
1669: sub end_randomlist {
1.159 albertel 1670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1671: my $result;
1672: if ($target eq 'edit' ) {
1673: $result=&Apache::edit::tag_end($target,$token,
1674: 'End Randomly Parsed Block');
1675: }
1676: return $result;
1.6 tsai 1677: }
1678:
1.283 albertel 1679: sub ordered_show_check {
1680: my $last_part=$Apache::inputtags::partlist[-2];
1681: my $in_order=
1682: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1683: my $in_order_show=1;
1684: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1685: $in_order_show=&Apache::response::check_status($last_part);
1686: }
1687: return $in_order_show;
1688: }
1689:
1.11 albertel 1690: sub start_part {
1.326 albertel 1691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1692: if (!$Apache::lonxml::metamode) {
1693: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1694: # duedates.
1695: }
1.159 albertel 1696: my $result='';
1.386 albertel 1697: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1698: $Apache::inputtags::part=$id;
1.177 albertel 1699: push(@Apache::inputtags::partlist,$id);
1700: @Apache::inputtags::response=();
1.159 albertel 1701: @Apache::inputtags::previous=();
1702: @Apache::inputtags::previous_version=();
1.405 albertel 1703: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1704: &Apache::response::reset_params();
1705:
1.159 albertel 1706: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1707: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1708: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1709: my $in_order_show=&ordered_show_check();
1.214 albertel 1710: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1711: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1712: &Apache::run::run($expression,$safeeval);
1.159 albertel 1713:
1714: if ($target eq 'meta') {
1.224 www 1715: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1716: return &Apache::response::mandatory_part_meta.
1717: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1718: } elsif ($target eq 'web' || $target eq 'grade' ||
1719: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1720: if ($hidden || !$in_order_show) {
1.326 albertel 1721: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1722: } else {
1723: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1724: push (@Apache::inputtags::status,$status);
1725: my $expression='$external::datestatus="'.$status.'";';
1726: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1727: &Apache::run::run($expression,$safeeval);
1.284 albertel 1728: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1729: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1730: }
1.216 albertel 1731: if (( $status eq 'CLOSED' ) ||
1732: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1733: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1734: ( $status eq 'BANNED') ||
1735: ( $status eq 'UNAVAILABLE') ||
1736: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1737: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1738: $style);
1.159 albertel 1739: if ( $target eq "web" ) {
1.211 albertel 1740: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1741: } elsif ( $target eq 'tex' ) {
1.284 albertel 1742: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1743: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1744: } else {
1.211 albertel 1745: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1746: }
1.159 albertel 1747: }
1748: } else {
1749: if ($target eq 'tex') {
1.284 albertel 1750: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1751: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1752: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1753: } else {
1754: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1755: }
1.195 sakharuk 1756: }
1.159 albertel 1757: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1758: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1759: my @allkeys = split /,/,$allkeys;
1760: my $allow_print_points = 0;
1761: foreach my $partial_key (@allkeys) {
1.230 albertel 1762: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1763: if ($1 ne '0') {$allow_print_points=1;}
1764: }
1765: }
1.275 albertel 1766: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1767: if (defined($maxtries) && $maxtries < 0) {
1768: $allow_print_points=0;
1769: }
1.302 albertel 1770: if (lc($env{'course.'.$env{'request.course.id'}.
1771: '.disableexampointprint'}) eq 'yes') {
1772: $allow_print_points=0;
1773: }
1.222 sakharuk 1774: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1775: } elsif ($target eq 'web') {
1.356 www 1776: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1777: }
1778: }
1779: }
1780: } elsif ($target eq 'edit') {
1781: $result.=&Apache::edit::tag_start($target,$token);
1782: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1783: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1784: ' '.
1785: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1786: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1787: } elsif ($target eq 'modified') {
1788: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1789: $safeeval,'id','display');
1.159 albertel 1790: if ($constructtag) {
1.225 albertel 1791: #limiting ids to only letters numbers, and space
1.224 www 1792: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1793: $result = &Apache::edit::rebuild_tag($token);
1794: }
1795: }
1796: return $result;
1.11 albertel 1797: }
1798:
1799: sub end_part {
1.159 albertel 1800: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1801: &Apache::lonxml::debug("in end_part $target ");
1802: my $status=$Apache::inputtags::status['-1'];
1803: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1804: my $in_order_show=&ordered_show_check();
1.321 albertel 1805: my $result;
1806: if (!$Apache::lonxml::metamode) {
1807: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1808: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1809: }
1.312 albertel 1810: if ($target eq 'grade') {
1.249 albertel 1811: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1812: !$hidden && $in_order_show) {
1.311 foxr 1813: $result.=&Apache::inputtags::grade;
1.249 albertel 1814: } else {
1815: # move any submission data to .hidden
1816: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1817: }
1.283 albertel 1818: } elsif (($target eq 'web' || $target eq 'tex') &&
1819: !$hidden && $in_order_show) {
1.159 albertel 1820: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1821: $target);
1.212 albertel 1822: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1823: $gradestatus='';
1824: }
1.311 foxr 1825: $result.=$gradestatus;
1.265 sakharuk 1826: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1827: } elsif ($target eq 'edit') {
1.311 foxr 1828: $result.=&Apache::edit::end_table();
1.322 albertel 1829: } elsif ($target eq 'modified') {
1830: $result .= $token->[2];
1.159 albertel 1831: }
1832: pop @Apache::inputtags::status;
1833: $Apache::inputtags::part='';
1.295 albertel 1834: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1835: return $result;
1.11 albertel 1836: }
1.1 albertel 1837:
1.25 albertel 1838: sub start_preduedate {
1.326 albertel 1839: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1840: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1841: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1842: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1843: if (!$Apache::lonhomework::scantronmode &&
1844: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1845: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1846: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1847: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1848: }
1.24 albertel 1849: }
1.159 albertel 1850: return '';
1.24 albertel 1851: }
1852:
1.25 albertel 1853: sub end_preduedate {
1.159 albertel 1854: return '';
1.24 albertel 1855: }
1856:
1.369 foxr 1857: # In all the modes where <postanswerdate> text is
1858: # displayable, all we do is eat up the text between the start/stop
1859: # tags if the conditions are not right to display it.
1.25 albertel 1860: sub start_postanswerdate {
1.326 albertel 1861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1862: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1863: &Apache::lonnet::allowed('pav',
1864: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1865: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1866: $target eq 'tex' ) {
1.300 albertel 1867: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1868: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1869: (($target eq 'tex') && !$pav)) {
1.326 albertel 1870: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1871: }
1872: }
1873: return '';
1.24 albertel 1874: }
1875:
1.25 albertel 1876: sub end_postanswerdate {
1.159 albertel 1877: return '';
1.24 albertel 1878: }
1879:
1.25 albertel 1880: sub start_notsolved {
1.326 albertel 1881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1882: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1883: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1884: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1885: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1886: if ($gradestatus =~ /^correct/ &&
1887: &Apache::response::show_answer()) {
1.159 albertel 1888: &Apache::lonxml::debug("skipping");
1.326 albertel 1889: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1890: }
1.24 albertel 1891: }
1.159 albertel 1892: return '';
1.24 albertel 1893: }
1894:
1.25 albertel 1895: sub end_notsolved {
1.159 albertel 1896: return '';
1.24 albertel 1897: }
1898:
1899: sub start_solved {
1.326 albertel 1900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1901: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1902: $target eq 'tex') {
1903: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1904: if ($gradestatus !~ /^correct/ ||
1905: !&Apache::response::show_answer()) {
1.326 albertel 1906: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1907: }
1.24 albertel 1908: }
1.159 albertel 1909: return '';
1.24 albertel 1910: }
1911:
1912: sub end_solved {
1.248 albertel 1913: return '';
1914: }
1915:
1916: sub start_problemtype {
1.326 albertel 1917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1918: my $result;
1.339 albertel 1919: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1920: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1921: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1922: if (!defined($mode)) { $mode='show'; }
1923: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1924: my $found=0;
1925: foreach my $type (split(',',$for)) {
1926: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1927: }
1928: if ($mode eq 'show' && !$found) {
1.326 albertel 1929: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1930: }
1931: if ($mode eq 'hide' && $found) {
1.326 albertel 1932: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1933: }
1934: } elsif ($target eq 'edit') {
1935: $result .=&Apache::edit::tag_start($target,$token);
1936: $result.=&Apache::edit::select_arg('Mode:','mode',
1937: [['show','Show'],
1938: ['hide','Hide']]
1939: ,$token);
1940: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1941: [ ['exam','Exam/Quiz Problem'],
1942: ['survey','Survey'],
1.428 raeburn 1943: ['problem','Homework Problem'],
1944: ['practice','Practice Problem'] ]
1.248 albertel 1945: ,$token);
1946: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1947: } elsif ($target eq 'modified') {
1948: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1949: $safeeval,'mode','for');
1950: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1951: }
1952: return $result;
1953: }
1954:
1955: sub end_problemtype {
1.159 albertel 1956: return '';
1.24 albertel 1957: }
1.34 albertel 1958:
1959: sub start_startouttext {
1.159 albertel 1960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1961: my @result=(''.'');
1962: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1963:
1964: my $nesting =
1965: &Apache::lonxml::set_state('outtext',
1966: &Apache::lonxml::get_state('outtext')+1);
1967: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1968: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1969: }
1.159 albertel 1970: return (@result);
1.34 albertel 1971: }
1.159 albertel 1972:
1.34 albertel 1973: sub end_startouttext {
1.326 albertel 1974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1975: my $result='';
1976: my $text='';
1977: if ($target eq 'edit') {
1.424 foxr 1978: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1979: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1980: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1981: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1982: .&Apache::edit::deletelist($target,$token)
1983: .'</span></td>';
1.425 raeburn 1984: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1985: $result .= '<td align="left">'
1986: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1987: .'</td>'
1988: .'<td>'
1989: .&Apache::edit::insertlist($target,$token)
1990: .'</td>';
1991: }
1.425 raeburn 1992: $result.='<td align="right" valign="top">' .
1.434 foxr 1993: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1994: &Apache::edit::end_row().
1.362 albertel 1995: &Apache::edit::start_spanning_row()."\n".
1.255 www 1996: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1997: }
1998: if ($target eq 'modified') {
1.219 albertel 1999: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2000: }
2001: if ($target eq 'tex') {
2002: $result .= '\noindent ';
2003: }
2004: return $result;
1.34 albertel 2005: }
1.159 albertel 2006:
1.34 albertel 2007: sub start_endouttext {
1.159 albertel 2008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2009: my $result='';
2010: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2011: if ($target eq "modified") {
2012: $result='<endouttext />'.
1.377 albertel 2013: &Apache::edit::handle_insertafter('startouttext');
2014: }
1.404 albertel 2015:
2016: my $nesting =
2017: &Apache::lonxml::set_state('outtext',
2018: &Apache::lonxml::get_state('outtext')-1);
2019: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2020: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2021: &Apache::lonxml::set_state('outtext', 0);
2022: }
1.159 albertel 2023: return $result;
1.34 albertel 2024: }
1.159 albertel 2025:
1.34 albertel 2026: sub end_endouttext {
1.159 albertel 2027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2028: my @result=('','');
2029: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2030: return (@result);
1.34 albertel 2031: }
1.159 albertel 2032:
1.45 albertel 2033: sub delete_startouttext {
1.326 albertel 2034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2035: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2036: my $text=$$parser['-1']->get_text("/endouttext");
2037: my $ntoken=$$parser['-1']->get_token();
2038: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2039: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2040: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2041: # they did the last time round
2042: &Apache::lonxml::increasedepth($ntoken);
2043: &Apache::lonxml::decreasedepth($ntoken);
2044: return 1;
1.193 www 2045: }
2046:
2047: sub start_simpleeditbutton {
2048: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2049: my $result='';
1.284 albertel 2050: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2051: ($target eq 'web') &&
1.330 albertel 2052: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2053: my $url=$env{'request.noversionuri'};
1.193 www 2054: $url=~s/\?.*$//;
1.367 albertel 2055: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2056: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2057: # $result='<p class="LC_warning">'
2058: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2059: # .&Apache::loncommon::help_open_topic('Caching')
2060: # .'</p>';
1.451 bisitz 2061: $result.=&Apache::lonhtmlcommon::start_funclist()
2062: .&Apache::lonhtmlcommon::add_item_funclist(
2063: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2064: .&mt('Edit').'</a>')
2065: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2066:
1.193 www 2067: }
2068: return $result;
2069: }
2070:
2071: sub end_simpleeditbutton {
2072: return '';
1.45 albertel 2073: }
1.34 albertel 2074:
1.428 raeburn 2075: sub practice_problem_header {
2076: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2077: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2078: '</span>';
2079: }
2080:
1.1 albertel 2081: 1;
2082: __END__
1.435 jms 2083:
2084: =pod
2085:
2086: =back
2087:
2088: =cut
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