Annotation of loncom/homework/structuretags.pm, revision 1.473
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.473 ! raeburn 4: # $Id: structuretags.pm,v 1.472 2010/08/01 03:57:27 raeburn 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 {
1.469 www 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','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') {
1.450 bisitz 212: # Breadcrumbs for Construction Space
213: &Apache::lonhtmlcommon::clear_breadcrumbs();
214: &Apache::lonhtmlcommon::add_breadcrumb({
215: 'text' => 'Construction Space',
216: 'href' => &Apache::loncommon::authorspace(),
217: });
1.460 droeschl 218: # breadcrumbs (and tools) will be created
219: # in start_page->bodytag->innerregister
220:
1.450 bisitz 221: # FIXME Where are we?
222: # &Apache::lonhtmlcommon::add_breadcrumb({
223: # 'text' => 'Problem Editing', # 'Problem Testing'
224: # 'href' => '',
225: # });
1.460 droeschl 226: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 227: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 228: }
1.272 albertel 229: } elsif (!defined($found{'body'})) {
1.343 albertel 230: my %add_entries;
1.159 albertel 231: my $background=&Apache::lonxml::get_param('background',$parstack,
232: $safeeval);
1.343 albertel 233: if ($background ne '' ) {
234: $add_entries{'background'} = $background;
235: }
1.344 albertel 236:
1.290 albertel 237: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
238: $safeeval);
1.446 bisitz 239: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 240:
1.446 bisitz 241: $body_args{'bgcolor'} = $bgcolor;
242: # $body_args{'no_title'} = 1;
243: $body_args{'force_register'} = 1;
244: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 245: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 246: $body_args{'only_body'} = 1;
247: }
1.344 albertel 248: }
1.365 albertel 249: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 250: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
251: \%body_args);
1.446 bisitz 252: $page_start .= $pageheader;
1.462 raeburn 253: if (!defined($found{'body'})
254: && $env{'request.state'} ne 'construct'
255: && ($target eq 'web' || $target eq 'webgrade')) {
256:
257: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
258: if ($symb eq '' && !$publicuser) {
259: $page_start .= '<p class="LC_info">'
260: .&mt('Browsing resource, all submissions are temporary.')
261: .'</p>';
1.457 bisitz 262: }
1.344 albertel 263: }
264:
1.409 albertel 265: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 266: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 267: }
1.344 albertel 268:
1.159 albertel 269: my $form_tag_start;
270: if (!defined($found{'form'})) {
1.337 albertel 271: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 272: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 273: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 274: $uri = &HTML::Entities::encode($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().'
1.459 bisitz 389: <hr style="clear:both;" />
1.409 albertel 390: '.&Apache::lonxml::message_location().'
1.408 albertel 391: </div>
392: '.
1.458 bisitz 393: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
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().'
1.459 bisitz 401: <hr style="clear:both;" />
1.412 albertel 402: </div>
403: '.
1.342 albertel 404: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 405: }
406:
1.235 albertel 407: sub option {
408: my ($value,$name) = @_;
409: my $result ="<option value='".$value."' ";
1.284 albertel 410: if ($env{'form.'.$name} eq $value) {
1.235 albertel 411: $result.=" selected='on' ";
412: }
413: $result.='>';
414: return $result;
415: }
416:
1.105 albertel 417: sub problem_web_to_edit_header {
1.159 albertel 418: my ($rndseed)=@_;
1.406 albertel 419: my $result .= '<div class="LC_edit_problem_header">';
420:
421: if (!$Apache::lonhomework::parsing_a_task) {
422: $result .=
423: '<div class="LC_edit_problem_header_title">'.
424: &mt('Problem Testing').
425: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
426: '</div>';
427: } else {
428: $result .=
429: '<div class="LC_edit_problem_header_title">'.
430: &mt('Task Testing').
431: '</div>';
432: }
433:
1.315 albertel 434: my $show_all_foils_text =
435: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 436: &mt('Show All Instances')
437: : &mt('Show All Foils');
1.315 albertel 438:
1.452 bisitz 439: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
440: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 441: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 442: $show_all.= ' /> '.$show_all_foils_text
443: .'</label></span>';
1.406 albertel 444:
445:
1.384 albertel 446:
1.406 albertel 447: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 448: if (!$Apache::lonhomework::parsing_a_task) {
449: $result.="
1.406 albertel 450: <div class='LC_edit_problem_header_row1'>
451: <span class=\"LC_nobreak\">
1.405 albertel 452: ".&mt("Problem Status:")."
1.235 albertel 453: <select name='problemstate'>
1.270 albertel 454: <option value=''></option>
1.235 albertel 455: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
456: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
457: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
458: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
459: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
460: </select>
1.406 albertel 461: </span>
462: <span class=\"LC_nobreak\">
1.405 albertel 463: ".&mt("Problem Type:")."
1.235 albertel 464: <select name='problemtype'>
1.270 albertel 465: <option value=''></option>
1.242 albertel 466: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 467: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 468: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 469: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
470: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
471: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 472: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 473: </select>
1.406 albertel 474: </span>
475: $show_all
476: </div>
477: <div class='LC_edit_problem_header_row2'>
478: <span class=\"LC_nobreak\">
1.405 albertel 479: ".&mt("Feedback Mode:")."
1.235 albertel 480: <select name='problemstatus'>
481: <option value=''></option>
1.242 albertel 482: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 483: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
484: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 485: </select>
1.406 albertel 486: </span>
487: ";
488:
1.376 albertel 489: } elsif ($Apache::lonhomework::parsing_a_task) {
490: $result.="
1.406 albertel 491: <div class='LC_edit_problem_header_row1'>
492: <span class=\"LC_nobreak\">
1.405 albertel 493: ".&mt("Problem Status:")."
1.376 albertel 494: <select name='problemstate'>
495: <option value=''></option>
496: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
497: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
498: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
499: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
500: </select>
1.406 albertel 501: </span>
502: $show_all
503: ";
504: }
505: $result.='
506: <span class="LC_nobreak">
507: '.&mt('Apply style file: ').'
508: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
509: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
510: </span>
1.422 www 511: </div>
512: <div class="LC_edit_problem_header_row1">'.
513: &Apache::lonxml::renderingoptions().'
1.406 albertel 514: </div>
515: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
516: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
517: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
518: </div>
1.453 bisitz 519: <hr />
1.406 albertel 520: <div class="LC_edit_problem_header_randomize_row">
521: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
522: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
523: <input type="text" name="rndseed" size="10" value="'.
524: $rndseed.'"
525: onchange="javascript:document.lonhomework.changerandseed.click()" />';
526:
527: if (!$Apache::lonhomework::parsing_a_task) {
528: my $numtoanalyze=$env{'form.numtoanalyze'};
529: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 530: $result .= '<span class="LC_nobreak">'.
531: &mt('[_1] for [_2] versions.',
1.416 raeburn 532: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 533: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
534: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 535: $numtoanalyze.'" size="5" />').
536: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
537: '</span>';
538:
1.313 albertel 539: }
1.406 albertel 540:
541: $result.='
542: </div>
1.453 bisitz 543: <hr />
1.447 bisitz 544: <div>';
1.416 raeburn 545: $result.='<input type="hidden" name="problemmode" value="view" />';
546: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
547: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
548: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
549: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 550: $result.='
551: </div>
1.453 bisitz 552: <hr />
1.409 albertel 553: '.&Apache::lonxml::message_location().'
1.406 albertel 554: </div>';
1.159 albertel 555: return $result;
1.48 albertel 556: }
557:
1.65 albertel 558: sub initialize_storage {
1.357 albertel 559: my ($given_symb) = @_;
1.353 albertel 560: undef(%Apache::lonhomework::results);
561: undef(%Apache::lonhomework::history);
1.357 albertel 562: my ($symb,$courseid,$domain,$name) =
1.367 albertel 563: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 564:
565: # anonymous users (CODEd exams) have no data
566: if ($name eq 'anonymous'
567: && !defined($domain)) {
568: return;
569: }
570:
1.333 albertel 571: if ($env{'request.state'} eq 'construct'
572: || $symb eq ''
573: || $Apache::lonhomework::type eq 'practice') {
574:
575: my $namespace = $symb || $env{'request.uri'};
576: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 577: ($env{'form.resetdata'} eq &mt('New Problem Variation')
578: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 579: $env{'form.newrandomization'} eq &mt('New Randomization')) {
580: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
581: &Apache::lonxml::debug("Attempt reset");
582: }
1.159 albertel 583: %Apache::lonhomework::history=
1.333 albertel 584: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 585: my ($temp)=keys %Apache::lonhomework::history ;
586: &Apache::lonxml::debug("Return message of $temp");
587: } else {
588: %Apache::lonhomework::history=
589: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
590: }
1.353 albertel 591:
1.159 albertel 592: #ignore error conditions
1.67 albertel 593: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 594: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 595: }
596:
1.435 jms 597: =pod
598:
599: =item finalize_storage()
600:
601: Stores away the result has to a student's environment
602: checks form.grade_ for specific values, other wises stores
603: to the running users environment
604: Will increment totals for attempts, students, and corrects
605: if running user has student role.
606:
607: =cut
608:
609:
1.65 albertel 610: sub finalize_storage {
1.357 albertel 611: my ($given_symb) = @_;
1.159 albertel 612: my $result;
1.289 albertel 613: if (%Apache::lonhomework::results) {
1.323 albertel 614: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
615: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 616: my ($symb,$courseid,$domain,$name) =
1.367 albertel 617: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 618: if ($env{'request.state'} eq 'construct'
619: || $symb eq ''
620: || $Apache::lonhomework::type eq 'practice') {
621: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 622: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 623: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 624: $namespace,'',$domain,$name);
1.159 albertel 625: &Apache::lonxml::debug('Construct Store return message:'.$result);
626: } else {
627: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
628: $symb,$courseid,$domain,$name);
629: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 630: &store_aggregates($symb,$courseid);
1.159 albertel 631: }
1.323 albertel 632: } else {
633: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 634: }
1.159 albertel 635: return $result;
1.65 albertel 636: }
637:
1.435 jms 638: =pod
639:
640: item store_aggregates()
641:
642: Sends hash of values to be incremented in nohist_resourcetracker.db
643: for the course. Increments total number of attempts, unique students
644: and corrects for each part for an instance of a problem, as appropriate.
645:
646: =cut
647:
1.285 raeburn 648: sub store_aggregates {
649: my ($symb,$courseid) = @_;
1.472 raeburn 650: my (%aggregate,%anoncounter);
1.286 albertel 651: my @parts;
1.288 albertel 652: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
653: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 654: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 655: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 656: push(@parts, $1);
1.285 raeburn 657: }
658: }
1.286 albertel 659: foreach my $part (@parts) {
1.470 raeburn 660: if ($env{'request.role'} =~/^st/) {
661: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
662: eq 'APPROX_ANS' ||
663: $Apache::lonhomework::results{'resource.'.$part.'.award'}
664: eq 'EXACT_ANS') {
665: $aggregate{$symb."\0".$part."\0correct"} = 1;
666: }
667: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
668: $aggregate{$symb."\0".$part."\0users"} = 1;
669: } else {
670: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
671: if ($last_reset) {
672: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
673: $aggregate{$symb."\0".$part."\0users"} = 1;
674: }
675: }
676: }
677: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 678: }
1.470 raeburn 679: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
680: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred')) {
1.472 raeburn 681: $anoncounter{$symb."\0".$part} = 1;
1.470 raeburn 682: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
683: if ($needsrelease) {
684: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
685: if ($curr_required eq '') {
1.471 raeburn 686: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 687: } else {
688: my ($currmajor,$currminor) = split(/\./,$curr_required);
689: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
690: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 691: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 692: }
1.292 raeburn 693: }
694: }
1.285 raeburn 695: }
696: }
1.292 raeburn 697: if (keys (%aggregate) > 0) {
1.289 albertel 698: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 699: $cdomain,$cname);
700: }
1.472 raeburn 701: if (keys(%anoncounter) > 0) {
702: &Apache::lonnet::cinc('nohist_anonsurveys',\%anoncounter,
703: $cdomain,$cname);
704: }
1.292 raeburn 705: }
1.289 albertel 706:
1.65 albertel 707: sub checkout_msg {
1.211 albertel 708: my %lt=&Apache::lonlocal::texthash(
709: 'resource'=>'The resource needs to be checked out',
710: '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.',
711: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
712: 'checkout'=>'Check out Exam for Viewing',
713: 'checkout?'=>'Check out Exam?');
1.352 albertel 714: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 715: return (<<ENDCHECKOUT);
1.211 albertel 716: <h2>$lt{'resource'}</h2>
717: <p>$lt{'id_expln'}</p>
1.449 bisitz 718: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 719: <form name="checkout" method="post" action="$uri">
1.91 albertel 720: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 721: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 722: </form>
723: ENDCHECKOUT
724: }
725:
1.252 albertel 726: sub firstaccess_msg {
1.253 albertel 727: my ($time,$symb)=@_;
1.414 albertel 728: my $result;
729: my @interval=&Apache::lonnet::EXT("resource.0.interval");
730: if ($interval[1] eq 'map') {
731: my ($map)=&Apache::lonnet::decode_symb($symb);
732: my $foldertitle=&Apache::lonnet::gettitle($map);
733:
734: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 735: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
736: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
737: ,$foldertitle,$time)."</h2>";
1.414 albertel 738: } elsif ($interval[1] eq 'course') {
739: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 740: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
741: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
742: ,$course,$time)."</h2>";
1.414 albertel 743: } else {
744: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 745: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
746: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
747: ,$title,$time)."</h2>";
1.414 albertel 748: }
1.352 albertel 749: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 750: my $buttontext = &mt('Show Resource');
751: my $timertext = &mt('Start Timer?');
1.414 albertel 752: $result .= (<<ENDCHECKOUT);
1.444 bisitz 753: <form name="markaccess" method="post" action="$uri">
1.252 albertel 754: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 755: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 756: </form>
757: ENDCHECKOUT
1.414 albertel 758: return $result;
1.252 albertel 759: }
760:
1.204 albertel 761: sub init_problem_globals {
762: my ($type)=@_;
763: #initialize globals
1.308 foxr 764: # For problems, we start out in part 0 (outside a <part> tag).
765: # and part 0 is used to describe the main body of the <problem>
766: #
1.204 albertel 767: if ($type eq 'problem') {
768: $Apache::inputtags::part='0';
769: @Apache::inputtags::partlist=('0');
1.405 albertel 770: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 771: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 772:
1.266 albertel 773: } elsif ($type eq 'library') {
1.204 albertel 774: $Apache::inputtags::part='';
775: @Apache::inputtags::partlist=();
1.405 albertel 776: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 777: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 778:
1.304 albertel 779: } elsif ($type eq 'Task') {
780: $Apache::inputtags::part='0';
781: @Apache::inputtags::partlist=('0');
1.405 albertel 782: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 783: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 784: }
785: @Apache::inputtags::responselist = ();
786: @Apache::inputtags::importlist = ();
787: @Apache::inputtags::previous=();
788: @Apache::inputtags::previous_version=();
789: $Apache::structuretags::printanswer='No';
790: @Apache::structuretags::whileconds=();
791: @Apache::structuretags::whilebody=();
792: @Apache::structuretags::whileline=();
793: $Apache::lonhomework::scantronmode=0;
794: undef($Apache::lonhomework::name);
1.358 albertel 795: undef($Apache::lonhomework::default_type);
796: undef($Apache::lonhomework::type);
1.204 albertel 797: }
798:
799: sub reset_problem_globals {
800: my ($type)=@_;
801: undef(%Apache::lonhomework::history);
802: undef(%Apache::lonhomework::results);
803: undef($Apache::inputtags::part);
1.208 albertel 804: #don't undef this, lonhomework.pm takes care of this, we use this to
805: #detect if we try to do 2 problems in one file
806: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 807: undef($Apache::lonhomework::name);
1.358 albertel 808: undef($Apache::lonhomework::default_type);
809: undef($Apache::lonhomework::type);
810: undef($Apache::lonhomework::scantronmode);
811: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 812: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 813: }
814:
1.241 albertel 815: sub set_problem_state {
1.240 albertel 816: my ($part)=@_;
1.284 albertel 817: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 818: $Apache::lonhomework::history{"resource.$part.solved"}=
819: 'correct_by_student';
820: }
821: }
822:
1.241 albertel 823: sub get_problem_status {
824: my ($part)=@_;
1.267 albertel 825: my $problem_status;
1.284 albertel 826: if ($env{'request.state'} eq 'construct' &&
827: defined($env{'form.problemstatus'})) {
828: $problem_status=$env{'form.problemstatus'};
1.267 albertel 829: } else {
830: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
831: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 832: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 833: }
834: return $problem_status;
835: }
836:
1.9 albertel 837: sub start_problem {
1.326 albertel 838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 839:
1.311 foxr 840: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 841: if (!$Apache::lonxml::metamode) {
842: &Apache::lonxml::startredirection();
843: }
1.311 foxr 844:
1.308 foxr 845: # Problems don't nest and we don't allow more than one <problem> in
846: # a .problem file.
847: #
1.184 albertel 848: if ( $Apache::inputtags::part ne '' ||
849: $Apache::lonhomework::parsing_a_problem) {
850: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 851: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 852: return '';
853: }
1.184 albertel 854:
855: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 856: &init_problem_globals('problem');
1.166 albertel 857:
1.284 albertel 858: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 859: $Apache::lonhomework::scantronmode=1;
860: }
1.161 albertel 861:
1.159 albertel 862: if ($target ne 'analyze') {
1.415 raeburn 863: my $type = &Apache::lonnet::EXT('resource.0.type');
864: $Apache::lonhomework::type=$type;
1.284 albertel 865: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 866: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 867: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 868: }
1.332 albertel 869: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 870: }
1.164 albertel 871: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 872: my $uri=$env{'request.uri'};
1.159 albertel 873: if ($uri=~/\.(\w+)$/) {
874: $Apache::lonhomework::type=$1;
875: &Apache::lonxml::debug("Using type of $1");
876: } else {
877: $Apache::lonhomework::type='problem';
878: &Apache::lonxml::debug("Using default type, problem, :$uri:");
879: }
1.87 albertel 880: }
1.301 albertel 881: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 882:
1.363 albertel 883: &initialize_storage();
1.389 albertel 884: if ($target ne 'analyze'
885: && $env{'request.state'} eq 'construct') {
886: &set_problem_state('0');
887: }
888:
1.366 albertel 889: if ($target eq 'web') {
890: &Apache::lonxml::debug(" grading history ");
891: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
892: }
1.363 albertel 893:
1.159 albertel 894: #added vars to the scripting enviroment
1.213 albertel 895: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 896: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 897: &Apache::run::run($expression,$safeeval);
1.159 albertel 898: my $status;
899: my $accessmsg;
900:
1.343 albertel 901: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 902: my ($result,$form_tag_start);
1.354 albertel 903: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
904: || $target eq 'edit') {
1.350 albertel 905: ($result,$form_tag_start) =
906: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
907: $name);
908: }
909:
1.284 albertel 910: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 911:
912: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
913: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
914: $target eq 'tex') {
1.284 albertel 915: if ($env{'form.markaccess'}) {
1.414 albertel 916: my @interval=&Apache::lonnet::EXT("resource.0.interval");
917: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 918: }
1.159 albertel 919: #handle rand seed in construction space
920: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 921: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 922: if ($env{'request.state'} ne "construct" &&
923: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 924: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 925: $rndseed.'" />'.
926: '<input type="submit" name="resetdata"
927: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 928: if (exists($env{'form.username'})) {
929: $form_tag_start.=
1.164 albertel 930: '<input type="hidden" name="username"
1.284 albertel 931: value="'.$env{'form.username'}.'" />';
1.334 albertel 932: }
1.462 raeburn 933: if ($env{'request.role.adv'}) {
934: $form_tag_start.= ' <label class="LC_nobreak">'
935: .'<input type="checkbox" name="showallfoils"';
936: if (defined($env{'form.showallfoils'})) {
937: $form_tag_start.=' checked="checked"';
938: }
939: $form_tag_start.= ' /> '
940: .&mt('Show All Foils')
941: .'</label>';
942: }
1.417 www 943: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 944: $form_tag_start.=&practice_problem_header();
1.417 www 945: }
1.462 raeburn 946: $form_tag_start.='<hr />';
1.162 albertel 947: }
1.324 albertel 948:
949: ($status,$accessmsg,my $slot_name,my $slot) =
950: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 951: push (@Apache::inputtags::status,$status);
1.324 albertel 952:
1.159 albertel 953: my $expression='$external::datestatus="'.$status.'";';
954: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
955: &Apache::run::run($expression,$safeeval);
956: &Apache::lonxml::debug("Got $status");
1.324 albertel 957:
1.159 albertel 958: if (( $status eq 'CLOSED' ) ||
959: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 960: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 961: ( $status eq 'BANNED') ||
1.216 albertel 962: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 963: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 964: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 965: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
966: $style);
1.159 albertel 967: if ( $target eq "web" ) {
1.343 albertel 968: my $msg;
1.159 albertel 969: if ($status eq 'UNAVAILABLE') {
1.245 albertel 970: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 971: } elsif ($status eq 'NOT_IN_A_SLOT') {
972: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 973: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 974: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 975: }
1.216 albertel 976: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 977: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 978: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 979: $msg.=&checkout_msg();
1.252 albertel 980: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 981: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 982: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 983: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 984: }
985: $result.=$msg.'<br />';
986: } elsif ($target eq 'tex') {
1.332 albertel 987: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
988: : '\begin{minipage}{\textwidth}';
1.443 foxr 989: $result.='\noindent \vskip 1 mm '.
1.332 albertel 990: $startminipage.'\vskip 0 mm';
1.159 albertel 991: if ($status eq 'UNAVAILABLE') {
1.211 albertel 992: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 993: } else {
1.211 albertel 994: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 995: }
996: }
1.324 albertel 997: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 998: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
999: $style);
1.324 albertel 1000: if ($target eq 'web') {
1.375 albertel 1001: $result .=
1002: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1003: } elsif ($target eq 'grade') {
1004: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1005: 'problem');
1006: }
1.159 albertel 1007: } elsif ($target eq 'web') {
1.360 albertel 1008: if ($status eq 'CAN_ANSWER'
1009: && $slot_name ne ''
1010: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1011: # unproctored slot access, self checkin
1012: &Apache::bridgetask::check_in('problem',undef,undef,
1013: $slot_name);
1014: }
1.368 albertel 1015: $result.="\n $form_tag_start \t".
1.227 albertel 1016: '<input type="hidden" name="submitted" value="yes" />';
1017: # create a page header and exit
1.284 albertel 1018: if ($env{'request.state'} eq "construct") {
1019: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1020: if ($Apache::lonhomework::type eq 'practice') {
1021: $result.= '<input type="submit" name="resetdata" '.
1022: 'value="'.&mt('New Problem Variation').'" />'.
1023: &practice_problem_header().'<hr />';
1024: }
1.227 albertel 1025: }
1026: # if we are viewing someone else preserve that info
1.284 albertel 1027: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1028: foreach my $field ('symb','courseid','domain','username') {
1029: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1030: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1031: }
1032: }
1033: } elsif ($target eq 'tex') {
1.319 foxr 1034: $result .= 'INSERTTEXFRONTMATTERHERE';
1035:
1.99 sakharuk 1036: }
1.159 albertel 1037: } elsif ($target eq 'edit') {
1.343 albertel 1038: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1039: $Apache::lonxml::warnings_error_header=
1040: &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 1041: my $temp=&Apache::edit::insertlist($target,$token);
1042: $result.=$temp;
1043: } elsif ($target eq 'modified') {
1044: $result=$token->[4];
1045: } else {
1046: # page_start returned a starting result, delete it if we don't need it
1047: $result = '';
1.99 sakharuk 1048: }
1.159 albertel 1049: return $result;
1.9 albertel 1050: }
1051:
1052: sub end_problem {
1.159 albertel 1053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1054: my $result;
1.310 foxr 1055:
1.321 albertel 1056: if (!$Apache::lonxml::metamode) {
1057: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1058: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1059: }
1.319 foxr 1060:
1061: if ($target eq 'tex') {
1.321 albertel 1062: # Figure out the front matter and replace the
1063: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1064: # this in end_problem because whether or not we display due
1065: # dates depends on whether due dates have already been
1066: # displayed in the problem parts.
1067:
1.319 foxr 1068: my $frontmatter = '';
1069: my $startminipage = '';
1070: if (not $env{'form.problem_split'}=~/yes/) {
1071: $startminipage = '\begin{minipage}{\textwidth}';
1072: }
1073: my $id = $Apache::inputtags::part;
1074: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1075: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1076: my @packages = split /,/,$packages;
1077: my $allow_print_points = 0;
1078: foreach my $partial_key (@packages) {
1079: if ($partial_key=~m/^part_0$/) {
1080: $allow_print_points=1;
1081: }
1082: }
1083: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1084: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1085: if (lc($env{'course.'.$env{'request.course.id'}.
1086: '.disableexampointprint'}) eq 'yes') {
1087: $allow_print_points=0;
1088: }
1089: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1090: 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 1091: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1092: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1093:
1094: # Figure out what the due date is and if we need to print
1095: # it in the problem header. We have been logging the
1096: # last due date written to file.
1097:
1098: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1099: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1100: my $duedate_text = &mt('Due date: [_1]'
1101: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1102: my $temp_file;
1103: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1104:
1105: # Figure out what the last printed due date is or set it
1106: # to the epoch if no duedates have been printed.
1107:
1108: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1109: if (-e $filename) {
1110: $temp_file = Apache::File->new($filename);
1111: my @due_file = <$temp_file>;
1112: $due_file_content = $due_file[$#due_file];
1113: chomp $due_file_content;
1114: }
1115:
1116: # We display the due date iff it is not the same as the last
1117: # duedate in problem header ($due_file_content), and
1118: # none of our parts displayed a duedate.
1119: #
1120: my $parts_with_displayduedate;
1121: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1122: $parts_with_displayduedate =
1123: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1124: } else {
1125: $parts_with_displayduedate = 0;
1126: }
1127: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1128: $temp_file = Apache::File->new('>'.$filename);
1129: print $temp_file "$duetime\n";
1130: if (not $env{'request.symb'} =~ m/\.page_/) {
1131: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1132: $frontmatter .= $begin_doc.
1.448 bisitz 1133: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1134: } else {
1135: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1136: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1137: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1138: }
1.319 foxr 1139: }
1140: } else {
1.448 bisitz 1141: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1142: }
1143: } else {
1144: if (not $env{'request.symb'} =~ m/\.page_/) {
1145: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1146: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1147: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1148: }
1.319 foxr 1149: } else {
1.381 albertel 1150: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1151: }
1152: }
1153: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1154: }
1155:
1.159 albertel 1156: my $status=$Apache::inputtags::status['-1'];
1157: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1158: $target eq 'tex') {
1.249 albertel 1159: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1160: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1161: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1162: &Apache::inputtags::grade;
1.324 albertel 1163: } elsif ($status eq 'NEEDS_CHECKIN') {
1164: # no need to grade, and don't want to hide data
1.249 albertel 1165: } else {
1166: # move any submission data to .hidden
1167: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1168: }
1.159 albertel 1169: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1170: $Apache::inputtags::part eq '0' &&
1.252 albertel 1171: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1172: # if part is zero, no <part>s existed, so we need show the current
1173: # grading status
1174: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1175: $result.= $gradestatus;
1176: }
1177: if (
1.284 albertel 1178: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1179: ($target eq 'answer') || ($target eq 'tex')
1180: ) {
1.227 albertel 1181: if ($target ne 'tex' &&
1.284 albertel 1182: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1183: $result.="</form>";
1.159 albertel 1184: }
1185: if ($target eq 'web') {
1.346 albertel 1186: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1187: } elsif ($target eq 'tex') {
1.178 sakharuk 1188: my $endminipage = '';
1.284 albertel 1189: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1190: $endminipage = '\end{minipage}';
1191: }
1.284 albertel 1192: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1193: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1194: } else {
1.262 sakharuk 1195: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1196: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1197: $result .= $endminipage.'\end{document} ';
1198: } else {
1.382 albertel 1199: $result .= $endminipage;
1.262 sakharuk 1200: }
1.159 albertel 1201: }
1202: }
1203: }
1204: if ($target eq 'grade') {
1205: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1206: &finalize_storage();
1207: }
1.284 albertel 1208: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1209: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1210: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1211: # normally we get it from above, but in CSTR
1.172 albertel 1212: # we always show answer mode too.
1.159 albertel 1213: }
1214: } elsif ($target eq 'meta') {
1215: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1216: @Apache::inputtags::response=();
1.159 albertel 1217: $result=&Apache::response::mandatory_part_meta;
1218: }
1.215 albertel 1219: $result.=&Apache::response::meta_part_order();
1.258 albertel 1220: $result.=&Apache::response::meta_response_order();
1.159 albertel 1221: } elsif ($target eq 'edit') {
1222: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1223: $result .= &problem_edit_footer();
1.320 albertel 1224: } elsif ($target eq 'modified') {
1225: $result .= $token->[2];
1.159 albertel 1226: }
1.155 albertel 1227:
1.284 albertel 1228: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1229: &Apache::inputtags::check_for_duplicate_ids();
1230: }
1.204 albertel 1231:
1232: &reset_problem_globals('problem');
1.159 albertel 1233:
1234: return $result;
1.48 albertel 1235: }
1236:
1.108 albertel 1237:
1.48 albertel 1238: sub start_library {
1.159 albertel 1239: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1240: my ($result,$form_tag_start);
1.371 albertel 1241: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1242: &init_problem_globals('library');
1243: $Apache::lonhomework::type='problem';
1244: }
1.159 albertel 1245: if ($target eq 'edit') {
1.343 albertel 1246: ($result,$form_tag_start)=
1247: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1248: 'Edit');
1249: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1250: my $temp=&Apache::edit::insertlist($target,$token);
1251: $result.=$temp;
1252: } elsif ($target eq 'modified') {
1253: $result=$token->[4];
1.340 albertel 1254: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1255: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1256: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1257: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1258: ($result,$form_tag_start)=
1259: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1260: $name);
1.159 albertel 1261: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1262: $result.=" \n $form_tag_start".
1.159 albertel 1263: '<input type="hidden" name="submitted" value="yes" />';
1264: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1265: if ($Apache::lonhomework::type eq 'practice') {
1266: $result.= '<input type="submit" name="resetdata" '.
1267: 'value="'.&mt('New Problem Variation').'" />'.
1268: &practice_problem_header().'<hr />';
1269: }
1.159 albertel 1270: }
1271: return $result;
1.48 albertel 1272: }
1273:
1274: sub end_library {
1.159 albertel 1275: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1276: my $result='';
1277: if ($target eq 'edit') {
1278: $result=&problem_edit_footer();
1.371 albertel 1279: } elsif ($target eq 'web'
1280: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1281: && $env{'request.state'} eq "construct") {
1.349 albertel 1282: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1283: }
1.371 albertel 1284: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1285: &reset_problem_globals('library');
1286: }
1.159 albertel 1287: return $result;
1.197 www 1288: }
1289:
1290: sub start_definetag {
1.326 albertel 1291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1292:
1293: my $result;
1294:
1295: my $name = $token->[2]->{'name'};
1.326 albertel 1296: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1297: if ($target eq 'web') {
1298: if ($name=~/^\//) {
1299: $result=
1300: '<br /><table class="LC_sty_end"><tr><th>'.
1301: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1302: } else {
1303: $result=
1304: '<br /><table class="LC_sty_begin"><tr><th>'.
1305: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1306: }
1307: $skip = &HTML::Entities::encode($skip, '<>&"');
1308: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1309: }
1310: return $result;
1311: }
1312:
1313: sub end_definetag {
1314: return '';
1.1 albertel 1315: }
1316:
1317: sub start_block {
1.201 albertel 1318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1319:
1320: my $result;
1.1 albertel 1321:
1.339 albertel 1322: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1323: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1324: my $code = $token->[2]->{'condition'};
1.385 albertel 1325: if (defined($code) && $code ne '') {
1.137 albertel 1326: if (!$Apache::lonxml::default_homework_loaded) {
1327: &Apache::lonxml::default_homework_load($safeeval);
1328: }
1.131 albertel 1329: $result = &Apache::run::run($code,$safeeval);
1330: &Apache::lonxml::debug("block :$code: returned :$result:");
1331: } else {
1332: $result='1';
1333: }
1334: if ( ! $result ) {
1.201 albertel 1335: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1336: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1337: }
1338: $result='';
1339: } elsif ($target eq 'edit') {
1340: $result .=&Apache::edit::tag_start($target,$token);
1341: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1342: $token,40);
1343: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1344: } elsif ($target eq 'modified') {
1345: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1346: $safeeval,'condition');
1347: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1348: }
1.131 albertel 1349: return $result;
1.1 albertel 1350: }
1351:
1352: sub end_block {
1.167 www 1353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1354: my $result;
1355: if ($target eq "edit") {
1356: $result.= &Apache::edit::tag_end($target,$token,'');
1357: }
1358: return $result;
1359: }
1360:
1361: sub start_languageblock {
1.201 albertel 1362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1363:
1364: my $result;
1365:
1.339 albertel 1366: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1367: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1368: my $include = $token->[2]->{'include'};
1369: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1370: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1371: # This should not even happen, since we should at least have the server language
1.398 www 1372: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1373: # Now loop over all languages in order of preference
1374: foreach my $preferred_language (@preferred_languages) {
1.394 www 1375: # If the languageblock has no arguments, show the contents
1.399 www 1376: $result=1;
1377: my $found=0;
1.394 www 1378: # Do we have an include argument?
1.398 www 1379: if ($include) {
1.394 www 1380: # If include is specified, by default, don't render the block
1.399 www 1381: $result=0;
1.398 www 1382: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1383: # ... but if my preferred language is included, render it
1.398 www 1384: if ($included_language eq $preferred_language) {
1.399 www 1385: $result=1;
1386: $found=1;
1.398 www 1387: }
1388: }
1389: }
1.394 www 1390: # Do we have an exclude argument?
1.398 www 1391: if ($exclude) {
1.399 www 1392: $result=1;
1.398 www 1393: foreach my $excluded_language (split(/\,/,$exclude)) {
1394: if ($excluded_language eq $preferred_language) {
1.399 www 1395: $result=0;
1396: $found=1;
1.398 www 1397: }
1398: }
1399: }
1.399 www 1400: if ($found) { last; }
1.398 www 1401: }
1.201 albertel 1402: if ( ! $result ) {
1403: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1404: $style);
1405: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1406: }
1407: $result='';
1.167 www 1408: } elsif ($target eq 'edit') {
1409: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1410: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1411: $token,40);
1.211 albertel 1412: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1413: $token,40);
1414: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1415: } elsif ($target eq 'modified') {
1416: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1417: $safeeval,'include',
1418: 'exclude');
1.167 www 1419: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1420: }
1421: return $result;
1422: }
1423:
1424: sub end_languageblock {
1.170 www 1425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1426: my $result;
1.201 albertel 1427: if ($target eq "edit") {
1.170 www 1428: $result.= &Apache::edit::tag_end($target,$token,'');
1429: }
1430: return $result;
1431: }
1432:
1.397 albertel 1433: {
1434: my %available_texts;
1435: sub start_translated {
1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1437: &Apache::lonxml::register('Apache::structuretags',('lang'));
1438: undef(%available_texts);
1439: }
1440:
1441: sub end_translated {
1442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1443: my $result;
1444: #show the translation on viewable targets
1445: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1446: # or non-viewable targets, if it's embedded in something that
1447: # wants the output
1448: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1449: && &Apache::lonxml::in_redirection() ) ) {
1450: my @possibilities = keys(%available_texts);
1451: my $which =
1452: &Apache::loncommon::languages(\@possibilities) || 'default';
1453: $result = $available_texts{$which};
1454: }
1455: undef(%available_texts);
1456: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1457: return $result;
1458: }
1459:
1460:
1461: sub start_lang {
1462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1463: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1464: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1465: &Apache::lonxml::startredirection();
1466: }
1467: return '';
1468: }
1469:
1470: sub end_lang {
1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1472: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1473: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1474: my $result = &Apache::lonxml::endredirection();
1475: my $which = &Apache::lonxml::get_param('which',$parstack,
1476: $safeeval);
1.431 raeburn 1477: if ($which=~/\w/) {
1478: $available_texts{$which} = $result;
1479: }
1480: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1481: $safeeval);
1482: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1483: if ($language=~/\w/) {
1484: $available_texts{$language} = $result;
1485: }
1.427 bisitz 1486: }
1487:
1.397 albertel 1488: }
1489: return '';
1490: }
1491: }
1492:
1.170 www 1493: sub start_instructorcomment {
1.201 albertel 1494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1495:
1496: my $result;
1497:
1.339 albertel 1498: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1499: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1500: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1501: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1502: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1503: $parser,$style);
1.170 www 1504: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1505: }
1506: $result='';
1507: } elsif ($target eq 'edit') {
1508: $result .=&Apache::edit::tag_start($target,$token);
1509: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1510: }
1511: return $result;
1512: }
1513:
1514: sub end_instructorcomment {
1.159 albertel 1515: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1516: my $result;
1517: if ($target eq "edit") {
1518: $result.= &Apache::edit::tag_end($target,$token,'');
1519: }
1520: return $result;
1.4 tsai 1521: }
1522:
1523: sub start_while {
1.326 albertel 1524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1525:
1.160 albertel 1526: my $result;
1.339 albertel 1527: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1528: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1529: my $code = $token->[2]->{'condition'};
1.4 tsai 1530:
1.160 albertel 1531: push( @Apache::structuretags::whileconds, $code);
1532: if (!$Apache::lonxml::default_homework_loaded) {
1533: &Apache::lonxml::default_homework_load($safeeval);
1534: }
1535: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1536: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1537: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1538: push( @Apache::structuretags::whileline, $token->[5]);
1539: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1540: if ( $result ) {
1541: &Apache::lonxml::newparser($parser,\$bodytext);
1542: }
1543: } elsif ($target eq 'edit') {
1544: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1545: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1546: $token,40);
1547: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1548: } elsif ($target eq 'modified') {
1549: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1550: $safeeval,'condition');
1551: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1552: }
1.160 albertel 1553: return $result;
1.4 tsai 1554: }
1555:
1556: sub end_while {
1.159 albertel 1557: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1558: my $result;
1559:
1.339 albertel 1560: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1561: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1562: my $code = pop(@Apache::structuretags::whileconds);
1563: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1564: my $line = pop(@Apache::structuretags::whileline);
1565: my $return = &Apache::run::run($code,$safeeval);
1566: my $starttime=time;
1567: my $error=0;
1568: while ($return) {
1569: if (time-$starttime >
1570: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1571: $return = 0; $error=1; next;
1.161 albertel 1572: }
1573: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1574: if ($target eq 'grade' || $target eq 'answer' ||
1575: $target eq 'analyze') {
1576: # grade/answer/analyze should produce no output but if we
1577: # are redirecting, the redirecter should know what to do
1578: # with the output
1579: if (!$Apache::lonxml::redirection) { undef($result); }
1580: }
1.161 albertel 1581: $return = &Apache::run::run($code,$safeeval);
1582: }
1583: if ($error) {
1.430 bisitz 1584: &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 1585: }
1586: } elsif ($target eq "edit") {
1587: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1588: }
1.160 albertel 1589: return $result;
1.1 albertel 1590: }
1.6 tsai 1591:
1.160 albertel 1592: # <randomlist show="1">
1.6 tsai 1593: # <tag1>..</tag1>
1594: # <tag2>..</tag2>
1595: # <tag3>..</tag3>
1.160 albertel 1596: # ...
1.6 tsai 1597: # </randomlist>
1598: sub start_randomlist {
1.326 albertel 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1600: my $result;
1.339 albertel 1601: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1602: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1603: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1604: my $b_parser= HTML::LCParser->new(\$body);
1605: $b_parser->xml_mode(1);
1606: $b_parser->marked_sections(1);
1.159 albertel 1607: my $b_tok;
1608: my @randomlist;
1609: my $list_item;
1610: while($b_tok = $b_parser->get_token() ) {
1611: if($b_tok->[0] eq 'S') { # start tag
1612: # get content of the tag until matching end tag
1613: # get all text upto the matching tag
1614: # and push the content into @randomlist
1615: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1616: $b_parser);
1617: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1618: push(@randomlist,$list_item);
1619: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1620: # $list_item</b>";
1621: }
1622: if($b_tok->[0] eq 'T') { # text
1623: # what to do with text in between tags?
1624: # print "<b>TEXT $b_tok->[1]</b><br />";
1625: }
1626: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1627: # print "<b>END-TAG $b_tok->[1]</b><br />";
1628: # }
1629: }
1.303 albertel 1630: if (@randomlist) {
1631: my @idx_arr = (0 .. $#randomlist);
1632: &Apache::structuretags::shuffle(\@idx_arr);
1633: my $bodytext = '';
1634: my $show=$#randomlist;
1635: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1636: $showarg--;
1637: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1638: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1639: my @currlist;
1640: my $part = $Apache::inputtags::part;
1641: if ($part ne '') {
1642: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1643: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1644: if (!(grep(/^\Q$part\E$/,@currlist))) {
1645: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1646: }
1647: } else {
1648: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1649: }
1650: }
1651: }
1.303 albertel 1652: for(0 .. $show) {
1653: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1654: }
1655: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1656: }
1657: } elsif ($target eq 'edit' ) {
1658: $result .=&Apache::edit::tag_start($target,$token);
1659: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1660: $token,5);
1661: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1662: } elsif ($target eq 'modified' ) {
1663: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1664: $safeeval,'show');
1665: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1666: }
1667: return $result;
1.7 tsai 1668: }
1669:
1670: sub shuffle {
1671: my $a=shift;
1672: my $i;
1.303 albertel 1673: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1674: &Apache::response::pushrandomnumber();
1.159 albertel 1675: for($i=@$a;--$i;) {
1676: my $j=int(&Math::Random::random_uniform() * ($i+1));
1677: next if $i == $j;
1678: @$a[$i,$j] = @$a[$j,$i];
1679: }
1.251 albertel 1680: &Apache::response::poprandomnumber();
1.7 tsai 1681: }
1.6 tsai 1682: }
1683:
1684: sub end_randomlist {
1.159 albertel 1685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1686: my $result;
1687: if ($target eq 'edit' ) {
1688: $result=&Apache::edit::tag_end($target,$token,
1689: 'End Randomly Parsed Block');
1690: }
1691: return $result;
1.6 tsai 1692: }
1693:
1.283 albertel 1694: sub ordered_show_check {
1695: my $last_part=$Apache::inputtags::partlist[-2];
1696: my $in_order=
1697: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1698: my $in_order_show=1;
1699: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1700: $in_order_show=&Apache::response::check_status($last_part);
1701: }
1702: return $in_order_show;
1703: }
1704:
1.469 www 1705:
1706: sub start_startpartmarker {
1707: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1708: my $result='';
1709: if ($target eq 'edit') {
1710: $result=&Apache::edit::tag_start($target,$token);
1711: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1712: $result.=&Apache::edit::end_table();
1713:
1714: }
1715: return $result;
1716: }
1717:
1718: sub end_startpartmarker {
1719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1720: my @result;
1721: if ($target eq 'edit') { $result[1]='no'; }
1722: return @result;
1723: }
1724:
1725: sub start_endpartmarker {
1726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1727: my $result='';
1728: if ($target eq 'edit') {
1729: $result=&Apache::edit::tag_start($target,$token);
1730: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1731: $result.=&Apache::edit::end_table();
1732:
1733: }
1734: return $result;
1735: }
1736:
1737: sub end_endpartmarker {
1738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1739: my @result;
1740: if ($target eq 'edit') { $result[1]='no'; }
1741: return @result;
1742: }
1743:
1744:
1745:
1746:
1747:
1.11 albertel 1748: sub start_part {
1.326 albertel 1749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1750: if (!$Apache::lonxml::metamode) {
1751: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1752: # duedates.
1753: }
1.159 albertel 1754: my $result='';
1.386 albertel 1755: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1756: $Apache::inputtags::part=$id;
1.177 albertel 1757: push(@Apache::inputtags::partlist,$id);
1758: @Apache::inputtags::response=();
1.159 albertel 1759: @Apache::inputtags::previous=();
1760: @Apache::inputtags::previous_version=();
1.405 albertel 1761: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1762: &Apache::response::reset_params();
1763:
1.159 albertel 1764: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1765: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1766: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1767: my $in_order_show=&ordered_show_check();
1.214 albertel 1768: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1769: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1770: &Apache::run::run($expression,$safeeval);
1.159 albertel 1771:
1772: if ($target eq 'meta') {
1.224 www 1773: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1774: return &Apache::response::mandatory_part_meta.
1775: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1776: } elsif ($target eq 'web' || $target eq 'grade' ||
1777: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1778: if ($hidden || !$in_order_show) {
1.326 albertel 1779: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1780: } else {
1781: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1782: push (@Apache::inputtags::status,$status);
1783: my $expression='$external::datestatus="'.$status.'";';
1784: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1785: &Apache::run::run($expression,$safeeval);
1.284 albertel 1786: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1787: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1788: }
1.216 albertel 1789: if (( $status eq 'CLOSED' ) ||
1790: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1791: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1792: ( $status eq 'BANNED') ||
1793: ( $status eq 'UNAVAILABLE') ||
1794: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1795: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1796: $style);
1.159 albertel 1797: if ( $target eq "web" ) {
1.211 albertel 1798: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1799: } elsif ( $target eq 'tex' ) {
1.284 albertel 1800: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1801: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1802: } else {
1.211 albertel 1803: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1804: }
1.159 albertel 1805: }
1806: } else {
1807: if ($target eq 'tex') {
1.284 albertel 1808: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1809: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1810: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1811: } else {
1812: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1813: }
1.195 sakharuk 1814: }
1.159 albertel 1815: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1816: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1817: my @allkeys = split /,/,$allkeys;
1818: my $allow_print_points = 0;
1819: foreach my $partial_key (@allkeys) {
1.230 albertel 1820: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1821: if ($1 ne '0') {$allow_print_points=1;}
1822: }
1823: }
1.275 albertel 1824: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1825: if (defined($maxtries) && $maxtries < 0) {
1826: $allow_print_points=0;
1827: }
1.302 albertel 1828: if (lc($env{'course.'.$env{'request.course.id'}.
1829: '.disableexampointprint'}) eq 'yes') {
1830: $allow_print_points=0;
1831: }
1.463 foxr 1832: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1833: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1834:
1835: }
1.233 www 1836: } elsif ($target eq 'web') {
1.356 www 1837: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1838: }
1839: }
1840: }
1841: } elsif ($target eq 'edit') {
1842: $result.=&Apache::edit::tag_start($target,$token);
1843: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1844: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1845: ' '.
1846: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1847: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1848: } elsif ($target eq 'modified') {
1849: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1850: $safeeval,'id','display');
1.159 albertel 1851: if ($constructtag) {
1.225 albertel 1852: #limiting ids to only letters numbers, and space
1.224 www 1853: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1854: $result = &Apache::edit::rebuild_tag($token);
1855: }
1856: }
1857: return $result;
1.11 albertel 1858: }
1859:
1860: sub end_part {
1.159 albertel 1861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1862: &Apache::lonxml::debug("in end_part $target ");
1863: my $status=$Apache::inputtags::status['-1'];
1864: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1865: my $in_order_show=&ordered_show_check();
1.321 albertel 1866: my $result;
1867: if (!$Apache::lonxml::metamode) {
1868: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1869: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1870: }
1.312 albertel 1871: if ($target eq 'grade') {
1.249 albertel 1872: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1873: !$hidden && $in_order_show) {
1.311 foxr 1874: $result.=&Apache::inputtags::grade;
1.249 albertel 1875: } else {
1876: # move any submission data to .hidden
1877: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1878: }
1.283 albertel 1879: } elsif (($target eq 'web' || $target eq 'tex') &&
1880: !$hidden && $in_order_show) {
1.159 albertel 1881: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1882: $target);
1.212 albertel 1883: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1884: $gradestatus='';
1885: }
1.311 foxr 1886: $result.=$gradestatus;
1.265 sakharuk 1887: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1888: } elsif ($target eq 'edit') {
1.311 foxr 1889: $result.=&Apache::edit::end_table();
1.322 albertel 1890: } elsif ($target eq 'modified') {
1891: $result .= $token->[2];
1.159 albertel 1892: }
1893: pop @Apache::inputtags::status;
1894: $Apache::inputtags::part='';
1.295 albertel 1895: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1896: return $result;
1.11 albertel 1897: }
1.1 albertel 1898:
1.25 albertel 1899: sub start_preduedate {
1.326 albertel 1900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1901: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1902: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1903: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1904: if (!$Apache::lonhomework::scantronmode &&
1905: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1906: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1907: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1908: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1909: }
1.24 albertel 1910: }
1.159 albertel 1911: return '';
1.24 albertel 1912: }
1913:
1.25 albertel 1914: sub end_preduedate {
1.159 albertel 1915: return '';
1.24 albertel 1916: }
1917:
1.369 foxr 1918: # In all the modes where <postanswerdate> text is
1919: # displayable, all we do is eat up the text between the start/stop
1920: # tags if the conditions are not right to display it.
1.25 albertel 1921: sub start_postanswerdate {
1.326 albertel 1922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1923: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1924: &Apache::lonnet::allowed('pav',
1925: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1926: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1927: $target eq 'tex' ) {
1.300 albertel 1928: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1929: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1930: (($target eq 'tex') && !$pav)) {
1.326 albertel 1931: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1932: }
1933: }
1934: return '';
1.24 albertel 1935: }
1936:
1.25 albertel 1937: sub end_postanswerdate {
1.159 albertel 1938: return '';
1.24 albertel 1939: }
1940:
1.25 albertel 1941: sub start_notsolved {
1.326 albertel 1942: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1943: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1944: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1945: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1946: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1947: if ($gradestatus =~ /^correct/ &&
1948: &Apache::response::show_answer()) {
1.159 albertel 1949: &Apache::lonxml::debug("skipping");
1.326 albertel 1950: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1951: }
1.24 albertel 1952: }
1.159 albertel 1953: return '';
1.24 albertel 1954: }
1955:
1.25 albertel 1956: sub end_notsolved {
1.159 albertel 1957: return '';
1.24 albertel 1958: }
1959:
1960: sub start_solved {
1.326 albertel 1961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1962: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1963: $target eq 'tex') {
1964: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1965: if ($gradestatus !~ /^correct/ ||
1966: !&Apache::response::show_answer()) {
1.326 albertel 1967: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1968: }
1.24 albertel 1969: }
1.159 albertel 1970: return '';
1.24 albertel 1971: }
1972:
1973: sub end_solved {
1.248 albertel 1974: return '';
1975: }
1976:
1977: sub start_problemtype {
1.326 albertel 1978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1979: my $result;
1.339 albertel 1980: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1981: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1982: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1983: if (!defined($mode)) { $mode='show'; }
1984: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1985: my $found=0;
1986: foreach my $type (split(',',$for)) {
1987: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1988: }
1989: if ($mode eq 'show' && !$found) {
1.326 albertel 1990: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1991: }
1992: if ($mode eq 'hide' && $found) {
1.326 albertel 1993: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1994: }
1995: } elsif ($target eq 'edit') {
1996: $result .=&Apache::edit::tag_start($target,$token);
1997: $result.=&Apache::edit::select_arg('Mode:','mode',
1998: [['show','Show'],
1999: ['hide','Hide']]
2000: ,$token);
2001: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2002: [ ['exam','Exam/Quiz Problem'],
2003: ['survey','Survey'],
1.465 raeburn 2004: ['surveycred','Survey (with credit)'],
2005: ['anonsurvey','Anonymous Survey'],
2006: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2007: ['problem','Homework Problem'],
2008: ['practice','Practice Problem'] ]
1.248 albertel 2009: ,$token);
2010: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2011: } elsif ($target eq 'modified') {
2012: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2013: $safeeval,'mode','for');
2014: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2015: }
2016: return $result;
2017: }
2018:
2019: sub end_problemtype {
1.159 albertel 2020: return '';
1.24 albertel 2021: }
1.34 albertel 2022:
2023: sub start_startouttext {
1.159 albertel 2024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2025: my @result=(''.'');
2026: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2027:
2028: my $nesting =
2029: &Apache::lonxml::set_state('outtext',
2030: &Apache::lonxml::get_state('outtext')+1);
2031: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2032: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2033: }
1.159 albertel 2034: return (@result);
1.34 albertel 2035: }
1.159 albertel 2036:
1.34 albertel 2037: sub end_startouttext {
1.326 albertel 2038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2039: my $result='';
2040: my $text='';
2041: if ($target eq 'edit') {
1.424 foxr 2042: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2043: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2044: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2045: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2046: .&Apache::edit::deletelist($target,$token)
2047: .'</span></td>';
1.425 raeburn 2048: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 2049: $result .= '<td align="left">'
2050: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2051: .'</td>'
2052: .'<td>'
2053: .&Apache::edit::insertlist($target,$token)
2054: .'</td>';
2055: }
1.425 raeburn 2056: $result.='<td align="right" valign="top">' .
1.434 foxr 2057: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2058: &Apache::edit::end_row().
1.362 albertel 2059: &Apache::edit::start_spanning_row()."\n".
1.255 www 2060: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2061: }
2062: if ($target eq 'modified') {
1.219 albertel 2063: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2064: }
2065: if ($target eq 'tex') {
2066: $result .= '\noindent ';
2067: }
2068: return $result;
1.34 albertel 2069: }
1.159 albertel 2070:
1.34 albertel 2071: sub start_endouttext {
1.159 albertel 2072: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2073: my $result='';
2074: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2075: if ($target eq "modified") {
2076: $result='<endouttext />'.
1.377 albertel 2077: &Apache::edit::handle_insertafter('startouttext');
2078: }
1.404 albertel 2079:
2080: my $nesting =
2081: &Apache::lonxml::set_state('outtext',
2082: &Apache::lonxml::get_state('outtext')-1);
2083: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2084: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2085: &Apache::lonxml::set_state('outtext', 0);
2086: }
1.159 albertel 2087: return $result;
1.34 albertel 2088: }
1.159 albertel 2089:
1.34 albertel 2090: sub end_endouttext {
1.159 albertel 2091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2092: my @result=('','');
2093: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2094: return (@result);
1.34 albertel 2095: }
1.159 albertel 2096:
1.45 albertel 2097: sub delete_startouttext {
1.326 albertel 2098: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2099: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2100: my $text=$$parser['-1']->get_text("/endouttext");
2101: my $ntoken=$$parser['-1']->get_token();
2102: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2103: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2104: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2105: # they did the last time round
2106: &Apache::lonxml::increasedepth($ntoken);
2107: &Apache::lonxml::decreasedepth($ntoken);
2108: return 1;
1.193 www 2109: }
2110:
2111: sub start_simpleeditbutton {
2112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2113: my $result='';
1.284 albertel 2114: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2115: ($target eq 'web') &&
1.330 albertel 2116: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2117: my $url=$env{'request.noversionuri'};
1.193 www 2118: $url=~s/\?.*$//;
1.367 albertel 2119: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2120: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2121: # $result='<p class="LC_warning">'
2122: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2123: # .&Apache::loncommon::help_open_topic('Caching')
2124: # .'</p>';
1.451 bisitz 2125: $result.=&Apache::lonhtmlcommon::start_funclist()
2126: .&Apache::lonhtmlcommon::add_item_funclist(
2127: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2128: .&mt('Edit').'</a>')
2129: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2130:
1.193 www 2131: }
2132: return $result;
2133: }
2134:
2135: sub end_simpleeditbutton {
2136: return '';
1.45 albertel 2137: }
1.34 albertel 2138:
1.428 raeburn 2139: sub practice_problem_header {
2140: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2141: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2142: '</span>';
2143: }
2144:
1.1 albertel 2145: 1;
2146: __END__
1.435 jms 2147:
2148: =pod
2149:
2150: =back
2151:
2152: =cut
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