Annotation of loncom/homework/structuretags.pm, revision 1.450
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.450 ! bisitz 4: # $Id: structuretags.pm,v 1.449 2009/06/09 12:56:27 bisitz Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.446 bisitz 206: my $pageheader = '';
1.344 albertel 207: if (defined($found{'body'})) {
208: $body_args{'skip_phases'}{'body'}=1;
209: } elsif (!defined($found{'body'})
210: && $env{'request.state'} eq 'construct') {
1.343 albertel 211: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 212: if ($env{'environment.remote'} ne 'off') {
213: $body_args{'only_body'} = 1;
214: }
1.450 ! bisitz 215: # Breadcrumbs for Construction Space
! 216: &Apache::lonhtmlcommon::clear_breadcrumbs();
! 217: &Apache::lonhtmlcommon::add_breadcrumb({
! 218: 'text' => 'Construction Space',
! 219: 'href' => &Apache::loncommon::authorspace(),
! 220: });
! 221: # FIXME Where are we?
! 222: # &Apache::lonhtmlcommon::add_breadcrumb({
! 223: # 'text' => 'Problem Editing', # 'Problem Testing'
! 224: # 'href' => '',
! 225: # });
! 226: $pageheader = &Apache::lonhtmlcommon::breadcrumbs()
1.446 bisitz 227: .&Apache::loncommon::head_subbox(
228: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 229: }
1.272 albertel 230: } elsif (!defined($found{'body'})) {
1.343 albertel 231: my %add_entries;
1.159 albertel 232: my $background=&Apache::lonxml::get_param('background',$parstack,
233: $safeeval);
1.343 albertel 234: if ($background ne '' ) {
235: $add_entries{'background'} = $background;
236: }
1.344 albertel 237:
1.290 albertel 238: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
239: $safeeval);
1.446 bisitz 240: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 241:
1.446 bisitz 242: $body_args{'bgcolor'} = $bgcolor;
243: # $body_args{'no_title'} = 1;
244: $body_args{'force_register'} = 1;
245: $body_args{'add_entries'} = \%add_entries;
246: if ($env{'environment.remote'} eq 'off'
247: && $env{'request.state'} eq 'construct') {
248: $body_args{'only_body'} = 1;
249: }
1.344 albertel 250: }
1.365 albertel 251: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 252: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
253: \%body_args);
1.446 bisitz 254: $page_start .= $pageheader;
1.344 albertel 255: if (!defined($found{'body'})
256: && $env{'request.state'} ne 'construct'
257: && ($target eq 'web' || $target eq 'webgrade')) {
258:
1.367 albertel 259: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 260: if ($symb eq '' && !$publicuser) {
261: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
262: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
263: $page_start .= $help;
1.159 albertel 264: }
1.344 albertel 265: }
266:
1.409 albertel 267: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 268: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 269: }
1.344 albertel 270:
1.159 albertel 271: my $form_tag_start;
272: if (!defined($found{'form'})) {
1.337 albertel 273: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 274: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 275: $form_tag_start.=$uri.'" ';
276: if ($target eq 'edit') {
277: $form_tag_start.=&Apache::edit::form_change_detection();
278: }
1.368 albertel 279: $form_tag_start.='>'."\n";
1.355 albertel 280:
281: my $symb=&Apache::lonnet::symbread();
282: if ($symb =~ /\S/) {
283: $symb=
284: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
285: $form_tag_start.=
1.368 albertel 286: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 287: }
1.159 albertel 288: }
1.343 albertel 289: return ($page_start,$form_tag_start);
1.105 albertel 290: }
291:
1.141 matthew 292: #use Time::HiRes();
1.105 albertel 293: sub get_resource_name {
1.159 albertel 294: my ($parstack,$safeeval)=@_;
1.388 foxr 295: my $name;
1.204 albertel 296: if (defined($Apache::lonhomework::name)) {
1.388 foxr 297: $name = $Apache::lonhomework::name;
298: } else {
299: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 300: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 301: if ($name eq '') {
302: $name=&Apache::lonnet::EXT('resource.title');
303: if ($name eq 'con_lost') { $name = ''; }
304: }
305: if ($name!~/\S+/) {
306: $name=$env{'request.uri'};
307: $name=~s-.*/([^/]+)$-$1-;
308: }
309: # The name has had html tags escaped:
310:
311: $name=~s/</</gs;
312: $name=~s/>/>/gs;
313:
314: $Apache::lonhomework::name=$name;
1.204 albertel 315: }
1.159 albertel 316: return $name;
1.105 albertel 317: }
318:
319: sub setup_rndseed {
1.159 albertel 320: my ($safeeval)=@_;
321: my $rndseed;
1.367 albertel 322: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 323: if ($env{'request.state'} eq "construct"
324: || $symb eq ''
325: || $Apache::lonhomework::type eq 'practice'
326: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 327: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 328: ['rndseed']);
1.284 albertel 329: $rndseed=$env{'form.rndseed'};
1.159 albertel 330: if (!$rndseed) {
1.162 albertel 331: $rndseed=$Apache::lonhomework::history{'rndseed'};
332: if (!$rndseed) {
333: $rndseed=time;
334: }
1.284 albertel 335: $env{'form.rndseed'}=$rndseed;
1.162 albertel 336: }
1.374 albertel 337: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
338: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 339: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 340: srand(time);
341: $rndseed=int(rand(2100000000));
1.284 albertel 342: $env{'form.rndseed'}=$rndseed;
343: delete($env{'form.resetdata'});
344: delete($env{'form.newrandomization'});
1.159 albertel 345: }
1.187 albertel 346: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 347: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 348: }
1.247 albertel 349: if ($Apache::lonhomework::history{'resource.CODE'}) {
350: $rndseed=&Apache::lonnet::rndseed();
351: }
1.221 albertel 352: if ($safeeval) {
353: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 354: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 355: }
1.159 albertel 356: }
357: return $rndseed;
1.105 albertel 358: }
359:
1.268 albertel 360: sub remember_problem_state {
361: return '
1.284 albertel 362: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
363: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
364: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 365: }
366:
1.423 www 367: sub problem_edit_buttons {
368: return '
1.408 albertel 369: <div class="LC_edit_problem_discards">
1.416 raeburn 370: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 371: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 372: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 373: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 374: </div>
375: <div class="LC_edit_problem_saves">
1.416 raeburn 376: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
377: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 378: </div>';
379: }
380:
381: sub problem_edit_header {
382: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
383: &Apache::structuretags::remember_problem_state().'
384: <div class="LC_edit_problem_header">
385: <div class="LC_edit_problem_header_title">
386: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
387: </div>'.
388: &problem_edit_buttons().'
1.408 albertel 389: <hr class="LC_edit_problem_divide" />
1.409 albertel 390: '.&Apache::lonxml::message_location().'
1.408 albertel 391: </div>
392: '.
1.282 albertel 393: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 394: }
395:
396: sub problem_edit_footer {
1.412 albertel 397: return '</td></tr></table><br />
398: <div class="LC_edit_problem_footer">
1.423 www 399: <hr class="LC_edit_problem_divide" />'.
400: &problem_edit_buttons().'
1.412 albertel 401: <hr class="LC_edit_problem_divide" />
402: </div>
403: '.
404:
1.348 albertel 405: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 406: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 407: }
408:
1.235 albertel 409: sub option {
410: my ($value,$name) = @_;
411: my $result ="<option value='".$value."' ";
1.284 albertel 412: if ($env{'form.'.$name} eq $value) {
1.235 albertel 413: $result.=" selected='on' ";
414: }
415: $result.='>';
416: return $result;
417: }
418:
1.105 albertel 419: sub problem_web_to_edit_header {
1.159 albertel 420: my ($rndseed)=@_;
1.406 albertel 421: my $result .= '<div class="LC_edit_problem_header">';
422:
423: if (!$Apache::lonhomework::parsing_a_task) {
424: $result .=
425: '<div class="LC_edit_problem_header_title">'.
426: &mt('Problem Testing').
427: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
428: '</div>';
429: } else {
430: $result .=
431: '<div class="LC_edit_problem_header_title">'.
432: &mt('Task Testing').
433: '</div>';
434: }
435:
1.315 albertel 436: my $show_all_foils_text =
437: ($Apache::lonhomework::parsing_a_task) ?
438: &mt(' Show All Instances')
439: : &mt(' Show All Foils');
440:
1.440 bisitz 441: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils"';
442: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.406 albertel 443: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
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>
1.428 raeburn 469: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 470: </select>
1.406 albertel 471: </span>
472: $show_all
473: </div>
474: <div class='LC_edit_problem_header_row2'>
475: <span class=\"LC_nobreak\">
1.405 albertel 476: ".&mt("Feedback Mode:")."
1.235 albertel 477: <select name='problemstatus'>
478: <option value=''></option>
1.242 albertel 479: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 480: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
481: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 482: </select>
1.406 albertel 483: </span>
484: ";
485:
1.376 albertel 486: } elsif ($Apache::lonhomework::parsing_a_task) {
487: $result.="
1.406 albertel 488: <div class='LC_edit_problem_header_row1'>
489: <span class=\"LC_nobreak\">
1.405 albertel 490: ".&mt("Problem Status:")."
1.376 albertel 491: <select name='problemstate'>
492: <option value=''></option>
493: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
494: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
495: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
496: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
497: </select>
1.406 albertel 498: </span>
499: $show_all
500: ";
501: }
502: $result.='
503: <span class="LC_nobreak">
504: '.&mt('Apply style file: ').'
505: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
506: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
507: </span>
1.422 www 508: </div>
509: <div class="LC_edit_problem_header_row1">'.
510: &Apache::lonxml::renderingoptions().'
1.406 albertel 511: </div>
512: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
513: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
514: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
515: </div>
516: <hr class="LC_edit_problem_divide" />
517: <div class="LC_edit_problem_header_randomize_row">
518: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
519: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
520: <input type="text" name="rndseed" size="10" value="'.
521: $rndseed.'"
522: onchange="javascript:document.lonhomework.changerandseed.click()" />';
523:
524: if (!$Apache::lonhomework::parsing_a_task) {
525: my $numtoanalyze=$env{'form.numtoanalyze'};
526: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 527: $result .= '<span class="LC_nobreak">'.
528: &mt('[_1] for [_2] versions.',
1.416 raeburn 529: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 530: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
531: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 532: $numtoanalyze.'" size="5" />').
533: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
534: '</span>';
535:
1.313 albertel 536: }
1.406 albertel 537:
538: $result.='
539: </div>
1.447 bisitz 540: <hr class="LC_edit_problem_divide" />
541: <div>';
1.416 raeburn 542: $result.='<input type="hidden" name="problemmode" value="view" />';
543: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
544: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
545: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
546: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 547: $result.='
548: </div>
1.447 bisitz 549: <hr class="LC_edit_problem_divide" />
1.409 albertel 550: '.&Apache::lonxml::message_location().'
1.406 albertel 551: </div>';
1.159 albertel 552: return $result;
1.48 albertel 553: }
554:
1.65 albertel 555: sub initialize_storage {
1.357 albertel 556: my ($given_symb) = @_;
1.353 albertel 557: undef(%Apache::lonhomework::results);
558: undef(%Apache::lonhomework::history);
1.357 albertel 559: my ($symb,$courseid,$domain,$name) =
1.367 albertel 560: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 561:
562: # anonymous users (CODEd exams) have no data
563: if ($name eq 'anonymous'
564: && !defined($domain)) {
565: return;
566: }
567:
1.333 albertel 568: if ($env{'request.state'} eq 'construct'
569: || $symb eq ''
570: || $Apache::lonhomework::type eq 'practice') {
571:
572: my $namespace = $symb || $env{'request.uri'};
573: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 574: ($env{'form.resetdata'} eq &mt('New Problem Variation')
575: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 576: $env{'form.newrandomization'} eq &mt('New Randomization')) {
577: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
578: &Apache::lonxml::debug("Attempt reset");
579: }
1.159 albertel 580: %Apache::lonhomework::history=
1.333 albertel 581: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 582: my ($temp)=keys %Apache::lonhomework::history ;
583: &Apache::lonxml::debug("Return message of $temp");
584: } else {
585: %Apache::lonhomework::history=
586: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
587: }
1.353 albertel 588:
1.159 albertel 589: #ignore error conditions
1.67 albertel 590: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 591: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 592: }
593:
1.435 jms 594: =pod
595:
596: =item finalize_storage()
597:
598: Stores away the result has to a student's environment
599: checks form.grade_ for specific values, other wises stores
600: to the running users environment
601: Will increment totals for attempts, students, and corrects
602: if running user has student role.
603:
604: =cut
605:
606:
1.65 albertel 607: sub finalize_storage {
1.357 albertel 608: my ($given_symb) = @_;
1.159 albertel 609: my $result;
1.289 albertel 610: if (%Apache::lonhomework::results) {
1.323 albertel 611: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
612: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 613: my ($symb,$courseid,$domain,$name) =
1.367 albertel 614: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 615: if ($env{'request.state'} eq 'construct'
616: || $symb eq ''
617: || $Apache::lonhomework::type eq 'practice') {
618: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 619: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 620: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 621: $namespace,'',$domain,$name);
1.159 albertel 622: &Apache::lonxml::debug('Construct Store return message:'.$result);
623: } else {
624: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
625: $symb,$courseid,$domain,$name);
626: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 627: if ($env{'request.role'} =~/^st/) {
628: &store_aggregates($symb,$courseid);
629: }
1.159 albertel 630: }
1.323 albertel 631: } else {
632: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 633: }
1.159 albertel 634: return $result;
1.65 albertel 635: }
636:
1.435 jms 637: =pod
638:
639: item store_aggregates()
640:
641: Sends hash of values to be incremented in nohist_resourcetracker.db
642: for the course. Increments total number of attempts, unique students
643: and corrects for each part for an instance of a problem, as appropriate.
644:
645: =cut
646:
1.285 raeburn 647: sub store_aggregates {
648: my ($symb,$courseid) = @_;
1.286 albertel 649: my %aggregate;
650: my @parts;
1.288 albertel 651: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
652: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 653: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 654: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 655: push(@parts, $1);
1.285 raeburn 656: }
657: }
1.286 albertel 658: foreach my $part (@parts) {
659: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
660: eq 'APPROX_ANS' ||
661: $Apache::lonhomework::results{'resource.'.$part.'.award'}
662: eq 'EXACT_ANS') {
1.287 albertel 663: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 664: }
1.286 albertel 665: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 666: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 667: } else {
1.293 albertel 668: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 669: if ($last_reset) {
1.293 albertel 670: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 671: $aggregate{$symb."\0".$part."\0users"} = 1;
672: }
673: }
1.285 raeburn 674: }
1.287 albertel 675: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 676: }
1.292 raeburn 677: if (keys (%aggregate) > 0) {
1.289 albertel 678: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 679: $cdomain,$cname);
680: }
681: }
1.289 albertel 682:
1.65 albertel 683: sub checkout_msg {
1.211 albertel 684: my %lt=&Apache::lonlocal::texthash(
685: 'resource'=>'The resource needs to be checked out',
686: '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.',
687: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
688: 'checkout'=>'Check out Exam for Viewing',
689: 'checkout?'=>'Check out Exam?');
1.352 albertel 690: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 691: return (<<ENDCHECKOUT);
1.211 albertel 692: <h2>$lt{'resource'}</h2>
693: <p>$lt{'id_expln'}</p>
1.449 bisitz 694: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 695: <form name="checkout" method="post" action="$uri">
1.91 albertel 696: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 697: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 698: </form>
699: ENDCHECKOUT
700: }
701:
1.252 albertel 702: sub firstaccess_msg {
1.253 albertel 703: my ($time,$symb)=@_;
1.414 albertel 704: my $result;
705: my @interval=&Apache::lonnet::EXT("resource.0.interval");
706: if ($interval[1] eq 'map') {
707: my ($map)=&Apache::lonnet::decode_symb($symb);
708: my $foldertitle=&Apache::lonnet::gettitle($map);
709:
710: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 711: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
712: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
713: ,$foldertitle,$time)."</h2>";
1.414 albertel 714: } elsif ($interval[1] eq 'course') {
715: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 716: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
717: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
718: ,$course,$time)."</h2>";
1.414 albertel 719: } else {
720: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 721: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
722: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
723: ,$title,$time)."</h2>";
1.414 albertel 724: }
1.352 albertel 725: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 726: my $buttontext = &mt('Show Resource');
727: my $timertext = &mt('Start Timer?');
1.414 albertel 728: $result .= (<<ENDCHECKOUT);
1.444 bisitz 729: <form name="markaccess" method="post" action="$uri">
1.252 albertel 730: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 731: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 732: </form>
733: ENDCHECKOUT
1.414 albertel 734: return $result;
1.252 albertel 735: }
736:
1.204 albertel 737: sub init_problem_globals {
738: my ($type)=@_;
739: #initialize globals
1.308 foxr 740: # For problems, we start out in part 0 (outside a <part> tag).
741: # and part 0 is used to describe the main body of the <problem>
742: #
1.204 albertel 743: if ($type eq 'problem') {
744: $Apache::inputtags::part='0';
745: @Apache::inputtags::partlist=('0');
1.405 albertel 746: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 747: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 748:
1.266 albertel 749: } elsif ($type eq 'library') {
1.204 albertel 750: $Apache::inputtags::part='';
751: @Apache::inputtags::partlist=();
1.405 albertel 752: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 753: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 754:
1.304 albertel 755: } elsif ($type eq 'Task') {
756: $Apache::inputtags::part='0';
757: @Apache::inputtags::partlist=('0');
1.405 albertel 758: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 759: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 760: }
761: @Apache::inputtags::responselist = ();
762: @Apache::inputtags::importlist = ();
763: @Apache::inputtags::previous=();
764: @Apache::inputtags::previous_version=();
765: $Apache::structuretags::printanswer='No';
766: @Apache::structuretags::whileconds=();
767: @Apache::structuretags::whilebody=();
768: @Apache::structuretags::whileline=();
769: $Apache::lonhomework::scantronmode=0;
770: undef($Apache::lonhomework::name);
1.358 albertel 771: undef($Apache::lonhomework::default_type);
772: undef($Apache::lonhomework::type);
1.204 albertel 773: }
774:
775: sub reset_problem_globals {
776: my ($type)=@_;
777: undef(%Apache::lonhomework::history);
778: undef(%Apache::lonhomework::results);
779: undef($Apache::inputtags::part);
1.208 albertel 780: #don't undef this, lonhomework.pm takes care of this, we use this to
781: #detect if we try to do 2 problems in one file
782: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 783: undef($Apache::lonhomework::name);
1.358 albertel 784: undef($Apache::lonhomework::default_type);
785: undef($Apache::lonhomework::type);
786: undef($Apache::lonhomework::scantronmode);
787: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 788: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 789: }
790:
1.241 albertel 791: sub set_problem_state {
1.240 albertel 792: my ($part)=@_;
1.284 albertel 793: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 794: $Apache::lonhomework::history{"resource.$part.solved"}=
795: 'correct_by_student';
796: }
797: }
798:
1.241 albertel 799: sub get_problem_status {
800: my ($part)=@_;
1.267 albertel 801: my $problem_status;
1.284 albertel 802: if ($env{'request.state'} eq 'construct' &&
803: defined($env{'form.problemstatus'})) {
804: $problem_status=$env{'form.problemstatus'};
1.267 albertel 805: } else {
806: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
807: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 808: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 809: }
810: return $problem_status;
811: }
812:
1.9 albertel 813: sub start_problem {
1.326 albertel 814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 815:
1.311 foxr 816: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 817: if (!$Apache::lonxml::metamode) {
818: &Apache::lonxml::startredirection();
819: }
1.311 foxr 820:
1.308 foxr 821: # Problems don't nest and we don't allow more than one <problem> in
822: # a .problem file.
823: #
1.184 albertel 824: if ( $Apache::inputtags::part ne '' ||
825: $Apache::lonhomework::parsing_a_problem) {
826: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 827: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 828: return '';
829: }
1.184 albertel 830:
831: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 832: &init_problem_globals('problem');
1.166 albertel 833:
1.284 albertel 834: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 835: $Apache::lonhomework::scantronmode=1;
836: }
1.161 albertel 837:
1.159 albertel 838: if ($target ne 'analyze') {
1.415 raeburn 839: my $type = &Apache::lonnet::EXT('resource.0.type');
840: $Apache::lonhomework::type=$type;
1.284 albertel 841: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 842: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 843: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 844: }
1.332 albertel 845: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 846: }
1.164 albertel 847: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 848: my $uri=$env{'request.uri'};
1.159 albertel 849: if ($uri=~/\.(\w+)$/) {
850: $Apache::lonhomework::type=$1;
851: &Apache::lonxml::debug("Using type of $1");
852: } else {
853: $Apache::lonhomework::type='problem';
854: &Apache::lonxml::debug("Using default type, problem, :$uri:");
855: }
1.87 albertel 856: }
1.301 albertel 857: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 858:
1.363 albertel 859: &initialize_storage();
1.389 albertel 860: if ($target ne 'analyze'
861: && $env{'request.state'} eq 'construct') {
862: &set_problem_state('0');
863: }
864:
1.366 albertel 865: if ($target eq 'web') {
866: &Apache::lonxml::debug(" grading history ");
867: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
868: }
1.363 albertel 869:
1.159 albertel 870: #added vars to the scripting enviroment
1.213 albertel 871: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 872: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 873: &Apache::run::run($expression,$safeeval);
1.159 albertel 874: my $status;
875: my $accessmsg;
876:
1.343 albertel 877: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 878: my ($result,$form_tag_start);
1.354 albertel 879: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
880: || $target eq 'edit') {
1.350 albertel 881: ($result,$form_tag_start) =
882: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
883: $name);
884: }
885:
1.284 albertel 886: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 887:
888: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
889: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
890: $target eq 'tex') {
891: #handle exam checkout
892: if ($Apache::lonhomework::type eq 'exam') {
893: my $token=
894: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 895: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 896: $token=&Apache::lonxml::maketoken();
897: $Apache::lonhomework::history{"resource.0.outtoken"}=
898: $token;
899: }
1.343 albertel 900: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 901: }
1.284 albertel 902: if ($env{'form.markaccess'}) {
1.414 albertel 903: my @interval=&Apache::lonnet::EXT("resource.0.interval");
904: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 905: }
1.159 albertel 906: #handle rand seed in construction space
907: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 908: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 909: if ($env{'request.state'} ne "construct" &&
910: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 911: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
912: $rndseed.'" />'.
913: '<input type="submit" name="resetdata"
1.334 albertel 914: value="'.&mt('New Problem Variation').'" />';
915: if (exists($env{'form.username'})) {
916: $form_tag_start.=
1.164 albertel 917: '<input type="hidden" name="username"
1.284 albertel 918: value="'.$env{'form.username'}.'" />';
1.334 albertel 919: }
1.333 albertel 920: if ($env{'request.role.adv'}) {
1.267 albertel 921: $form_tag_start.=
1.440 bisitz 922: ' <label><input type="checkbox" name="showallfoils"';
1.284 albertel 923: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 924: $form_tag_start.=' checked="checked"';
1.267 albertel 925: }
1.300 albertel 926: $form_tag_start.= ' />'.&mt(' Show All Foils').
927: '</label>';
1.267 albertel 928: }
1.417 www 929: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 930: $form_tag_start.=&practice_problem_header();
1.417 www 931: }
1.267 albertel 932: $form_tag_start.='<hr />';
1.162 albertel 933: }
1.324 albertel 934:
935: ($status,$accessmsg,my $slot_name,my $slot) =
936: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 937: push (@Apache::inputtags::status,$status);
1.324 albertel 938:
1.159 albertel 939: my $expression='$external::datestatus="'.$status.'";';
940: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
941: &Apache::run::run($expression,$safeeval);
942: &Apache::lonxml::debug("Got $status");
1.324 albertel 943:
1.159 albertel 944: if (( $status eq 'CLOSED' ) ||
945: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 946: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 947: ( $status eq 'BANNED') ||
1.216 albertel 948: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 949: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 950: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 951: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
952: $style);
1.159 albertel 953: if ( $target eq "web" ) {
1.343 albertel 954: my $msg;
1.159 albertel 955: if ($status eq 'UNAVAILABLE') {
1.245 albertel 956: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 957: } elsif ($status eq 'NOT_IN_A_SLOT') {
958: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 959: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 960: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 961: }
1.216 albertel 962: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 963: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 964: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 965: $msg.=&checkout_msg();
1.252 albertel 966: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 967: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 968: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 969: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 970: }
971: $result.=$msg.'<br />';
972: } elsif ($target eq 'tex') {
1.332 albertel 973: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
974: : '\begin{minipage}{\textwidth}';
1.443 foxr 975: $result.='\noindent \vskip 1 mm '.
1.332 albertel 976: $startminipage.'\vskip 0 mm';
1.159 albertel 977: if ($status eq 'UNAVAILABLE') {
1.211 albertel 978: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 979: } else {
1.211 albertel 980: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 981: }
982: }
1.324 albertel 983: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 984: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
985: $style);
1.324 albertel 986: if ($target eq 'web') {
1.375 albertel 987: $result .=
988: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 989: } elsif ($target eq 'grade') {
990: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
991: 'problem');
992: }
1.159 albertel 993: } elsif ($target eq 'web') {
1.360 albertel 994: if ($status eq 'CAN_ANSWER'
995: && $slot_name ne ''
996: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
997: # unproctored slot access, self checkin
998: &Apache::bridgetask::check_in('problem',undef,undef,
999: $slot_name);
1000: }
1.368 albertel 1001: $result.="\n $form_tag_start \t".
1.227 albertel 1002: '<input type="hidden" name="submitted" value="yes" />';
1003: # create a page header and exit
1.284 albertel 1004: if ($env{'request.state'} eq "construct") {
1005: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1006: if ($Apache::lonhomework::type eq 'practice') {
1007: $result.= '<input type="submit" name="resetdata" '.
1008: 'value="'.&mt('New Problem Variation').'" />'.
1009: &practice_problem_header().'<hr />';
1010: }
1.227 albertel 1011: }
1012: # if we are viewing someone else preserve that info
1.284 albertel 1013: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1014: foreach my $field ('symb','courseid','domain','username') {
1015: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1016: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1017: }
1018: }
1019: } elsif ($target eq 'tex') {
1.319 foxr 1020: $result .= 'INSERTTEXFRONTMATTERHERE';
1021:
1.99 sakharuk 1022: }
1.159 albertel 1023: } elsif ($target eq 'edit') {
1.343 albertel 1024: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1025: $Apache::lonxml::warnings_error_header=
1026: &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 1027: my $temp=&Apache::edit::insertlist($target,$token);
1028: $result.=$temp;
1029: } elsif ($target eq 'modified') {
1030: $result=$token->[4];
1031: } else {
1032: # page_start returned a starting result, delete it if we don't need it
1033: $result = '';
1.99 sakharuk 1034: }
1.159 albertel 1035: return $result;
1.9 albertel 1036: }
1037:
1038: sub end_problem {
1.159 albertel 1039: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1040: my $result;
1.310 foxr 1041:
1.321 albertel 1042: if (!$Apache::lonxml::metamode) {
1043: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1044: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1045: }
1.319 foxr 1046:
1047: if ($target eq 'tex') {
1.321 albertel 1048: # Figure out the front matter and replace the
1049: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1050: # this in end_problem because whether or not we display due
1051: # dates depends on whether due dates have already been
1052: # displayed in the problem parts.
1053:
1.319 foxr 1054: my $frontmatter = '';
1055: my $startminipage = '';
1056: if (not $env{'form.problem_split'}=~/yes/) {
1057: $startminipage = '\begin{minipage}{\textwidth}';
1058: }
1059: my $id = $Apache::inputtags::part;
1060: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1061: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1062: my @packages = split /,/,$packages;
1063: my $allow_print_points = 0;
1064: foreach my $partial_key (@packages) {
1065: if ($partial_key=~m/^part_0$/) {
1066: $allow_print_points=1;
1067: }
1068: }
1069: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1070: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1071: if (lc($env{'course.'.$env{'request.course.id'}.
1072: '.disableexampointprint'}) eq 'yes') {
1073: $allow_print_points=0;
1074: }
1075: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1076: 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 1077: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1078: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1079:
1080: # Figure out what the due date is and if we need to print
1081: # it in the problem header. We have been logging the
1082: # last due date written to file.
1083:
1084: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1085: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1086: my $duedate_text = &mt('Due date: [_1]'
1087: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1088: my $temp_file;
1089: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1090:
1091: # Figure out what the last printed due date is or set it
1092: # to the epoch if no duedates have been printed.
1093:
1094: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1095: if (-e $filename) {
1096: $temp_file = Apache::File->new($filename);
1097: my @due_file = <$temp_file>;
1098: $due_file_content = $due_file[$#due_file];
1099: chomp $due_file_content;
1100: }
1101:
1102: # We display the due date iff it is not the same as the last
1103: # duedate in problem header ($due_file_content), and
1104: # none of our parts displayed a duedate.
1105: #
1106: my $parts_with_displayduedate;
1107: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1108: $parts_with_displayduedate =
1109: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1110: } else {
1111: $parts_with_displayduedate = 0;
1112: }
1113: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1114: $temp_file = Apache::File->new('>'.$filename);
1115: print $temp_file "$duetime\n";
1116: if (not $env{'request.symb'} =~ m/\.page_/) {
1117: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1118: $frontmatter .= $begin_doc.
1.448 bisitz 1119: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1120: } else {
1121: $frontmatter.= $begin_doc.$toc_line;
1122: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1123: }
1124: } else {
1.448 bisitz 1125: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1126: }
1127: } else {
1128: if (not $env{'request.symb'} =~ m/\.page_/) {
1129: $frontmatter .= $begin_doc.$toc_line;
1130: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1131: } else {
1.381 albertel 1132: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1133: }
1134: }
1135: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1136: }
1137:
1.159 albertel 1138: my $status=$Apache::inputtags::status['-1'];
1139: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1140: $target eq 'tex') {
1.249 albertel 1141: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1142: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1143: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1144: &Apache::inputtags::grade;
1.324 albertel 1145: } elsif ($status eq 'NEEDS_CHECKIN') {
1146: # no need to grade, and don't want to hide data
1.249 albertel 1147: } else {
1148: # move any submission data to .hidden
1149: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1150: }
1.159 albertel 1151: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1152: $Apache::inputtags::part eq '0' &&
1.252 albertel 1153: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1154: # if part is zero, no <part>s existed, so we need show the current
1155: # grading status
1156: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1157: $result.= $gradestatus;
1158: }
1159: if (
1.284 albertel 1160: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1161: ($target eq 'answer') || ($target eq 'tex')
1162: ) {
1.227 albertel 1163: if ($target ne 'tex' &&
1.284 albertel 1164: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1165: $result.="</form>";
1.348 albertel 1166: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1167: }
1168: if ($target eq 'web') {
1.346 albertel 1169: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1170: } elsif ($target eq 'tex') {
1.178 sakharuk 1171: my $endminipage = '';
1.284 albertel 1172: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1173: $endminipage = '\end{minipage}';
1174: }
1.284 albertel 1175: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1176: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1177: } else {
1.262 sakharuk 1178: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1179: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1180: $result .= $endminipage.'\end{document} ';
1181: } else {
1.382 albertel 1182: $result .= $endminipage;
1.262 sakharuk 1183: }
1.159 albertel 1184: }
1185: }
1186: }
1187: if ($target eq 'grade') {
1188: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1189: &finalize_storage();
1190: }
1.284 albertel 1191: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1192: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1193: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1194: # normally we get it from above, but in CSTR
1.172 albertel 1195: # we always show answer mode too.
1.159 albertel 1196: }
1197: } elsif ($target eq 'meta') {
1198: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1199: @Apache::inputtags::response=();
1.159 albertel 1200: $result=&Apache::response::mandatory_part_meta;
1201: }
1.215 albertel 1202: $result.=&Apache::response::meta_part_order();
1.258 albertel 1203: $result.=&Apache::response::meta_response_order();
1.159 albertel 1204: } elsif ($target eq 'edit') {
1205: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1206: $result .= &problem_edit_footer();
1.320 albertel 1207: } elsif ($target eq 'modified') {
1208: $result .= $token->[2];
1.159 albertel 1209: }
1.155 albertel 1210:
1.284 albertel 1211: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1212: &Apache::inputtags::check_for_duplicate_ids();
1213: }
1.204 albertel 1214:
1215: &reset_problem_globals('problem');
1.159 albertel 1216:
1217: return $result;
1.48 albertel 1218: }
1219:
1.108 albertel 1220:
1.48 albertel 1221: sub start_library {
1.159 albertel 1222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1223: my ($result,$form_tag_start);
1.371 albertel 1224: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1225: &init_problem_globals('library');
1226: $Apache::lonhomework::type='problem';
1227: }
1.159 albertel 1228: if ($target eq 'edit') {
1.343 albertel 1229: ($result,$form_tag_start)=
1230: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1231: 'Edit');
1232: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1233: my $temp=&Apache::edit::insertlist($target,$token);
1234: $result.=$temp;
1235: } elsif ($target eq 'modified') {
1236: $result=$token->[4];
1.340 albertel 1237: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1238: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1239: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1240: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1241: ($result,$form_tag_start)=
1242: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1243: $name);
1.159 albertel 1244: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1245: $result.=" \n $form_tag_start".
1.159 albertel 1246: '<input type="hidden" name="submitted" value="yes" />';
1247: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1248: if ($Apache::lonhomework::type eq 'practice') {
1249: $result.= '<input type="submit" name="resetdata" '.
1250: 'value="'.&mt('New Problem Variation').'" />'.
1251: &practice_problem_header().'<hr />';
1252: }
1.159 albertel 1253: }
1254: return $result;
1.48 albertel 1255: }
1256:
1257: sub end_library {
1.159 albertel 1258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1259: my $result='';
1260: if ($target eq 'edit') {
1261: $result=&problem_edit_footer();
1.371 albertel 1262: } elsif ($target eq 'web'
1263: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1264: && $env{'request.state'} eq "construct") {
1.349 albertel 1265: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1266: }
1.371 albertel 1267: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1268: &reset_problem_globals('library');
1269: }
1.159 albertel 1270: return $result;
1.197 www 1271: }
1272:
1273: sub start_definetag {
1.326 albertel 1274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1275:
1276: my $result;
1277:
1278: my $name = $token->[2]->{'name'};
1.326 albertel 1279: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1280: if ($target eq 'web') {
1281: if ($name=~/^\//) {
1282: $result=
1283: '<br /><table class="LC_sty_end"><tr><th>'.
1284: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1285: } else {
1286: $result=
1287: '<br /><table class="LC_sty_begin"><tr><th>'.
1288: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1289: }
1290: $skip = &HTML::Entities::encode($skip, '<>&"');
1291: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1292: }
1293: return $result;
1294: }
1295:
1296: sub end_definetag {
1297: return '';
1.1 albertel 1298: }
1299:
1300: sub start_block {
1.201 albertel 1301: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1302:
1303: my $result;
1.1 albertel 1304:
1.339 albertel 1305: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1306: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1307: my $code = $token->[2]->{'condition'};
1.385 albertel 1308: if (defined($code) && $code ne '') {
1.137 albertel 1309: if (!$Apache::lonxml::default_homework_loaded) {
1310: &Apache::lonxml::default_homework_load($safeeval);
1311: }
1.131 albertel 1312: $result = &Apache::run::run($code,$safeeval);
1313: &Apache::lonxml::debug("block :$code: returned :$result:");
1314: } else {
1315: $result='1';
1316: }
1317: if ( ! $result ) {
1.201 albertel 1318: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1319: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1320: }
1321: $result='';
1322: } elsif ($target eq 'edit') {
1323: $result .=&Apache::edit::tag_start($target,$token);
1324: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1325: $token,40);
1326: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1327: } elsif ($target eq 'modified') {
1328: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1329: $safeeval,'condition');
1330: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1331: }
1.131 albertel 1332: return $result;
1.1 albertel 1333: }
1334:
1335: sub end_block {
1.167 www 1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1337: my $result;
1338: if ($target eq "edit") {
1339: $result.= &Apache::edit::tag_end($target,$token,'');
1340: }
1341: return $result;
1342: }
1343:
1344: sub start_languageblock {
1.201 albertel 1345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1346:
1347: my $result;
1348:
1.339 albertel 1349: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1350: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1351: my $include = $token->[2]->{'include'};
1352: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1353: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1354: # This should not even happen, since we should at least have the server language
1.398 www 1355: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1356: # Now loop over all languages in order of preference
1357: foreach my $preferred_language (@preferred_languages) {
1.394 www 1358: # If the languageblock has no arguments, show the contents
1.399 www 1359: $result=1;
1360: my $found=0;
1.394 www 1361: # Do we have an include argument?
1.398 www 1362: if ($include) {
1.394 www 1363: # If include is specified, by default, don't render the block
1.399 www 1364: $result=0;
1.398 www 1365: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1366: # ... but if my preferred language is included, render it
1.398 www 1367: if ($included_language eq $preferred_language) {
1.399 www 1368: $result=1;
1369: $found=1;
1.398 www 1370: }
1371: }
1372: }
1.394 www 1373: # Do we have an exclude argument?
1.398 www 1374: if ($exclude) {
1.399 www 1375: $result=1;
1.398 www 1376: foreach my $excluded_language (split(/\,/,$exclude)) {
1377: if ($excluded_language eq $preferred_language) {
1.399 www 1378: $result=0;
1379: $found=1;
1.398 www 1380: }
1381: }
1382: }
1.399 www 1383: if ($found) { last; }
1.398 www 1384: }
1.201 albertel 1385: if ( ! $result ) {
1386: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1387: $style);
1388: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1389: }
1390: $result='';
1.167 www 1391: } elsif ($target eq 'edit') {
1392: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1393: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1394: $token,40);
1.211 albertel 1395: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1396: $token,40);
1397: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1398: } elsif ($target eq 'modified') {
1399: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1400: $safeeval,'include',
1401: 'exclude');
1.167 www 1402: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1403: }
1404: return $result;
1405: }
1406:
1407: sub end_languageblock {
1.170 www 1408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1409: my $result;
1.201 albertel 1410: if ($target eq "edit") {
1.170 www 1411: $result.= &Apache::edit::tag_end($target,$token,'');
1412: }
1413: return $result;
1414: }
1415:
1.397 albertel 1416: {
1417: my %available_texts;
1418: sub start_translated {
1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1420: &Apache::lonxml::register('Apache::structuretags',('lang'));
1421: undef(%available_texts);
1422: }
1423:
1424: sub end_translated {
1425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1426: my $result;
1427: #show the translation on viewable targets
1428: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1429: # or non-viewable targets, if it's embedded in something that
1430: # wants the output
1431: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1432: && &Apache::lonxml::in_redirection() ) ) {
1433: my @possibilities = keys(%available_texts);
1434: my $which =
1435: &Apache::loncommon::languages(\@possibilities) || 'default';
1436: $result = $available_texts{$which};
1437: }
1438: undef(%available_texts);
1439: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1440: return $result;
1441: }
1442:
1443:
1444: sub start_lang {
1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1446: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1447: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1448: &Apache::lonxml::startredirection();
1449: }
1450: return '';
1451: }
1452:
1453: sub end_lang {
1454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1457: my $result = &Apache::lonxml::endredirection();
1458: my $which = &Apache::lonxml::get_param('which',$parstack,
1459: $safeeval);
1.431 raeburn 1460: if ($which=~/\w/) {
1461: $available_texts{$which} = $result;
1462: }
1463: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1464: $safeeval);
1465: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1466: if ($language=~/\w/) {
1467: $available_texts{$language} = $result;
1468: }
1.427 bisitz 1469: }
1470:
1.397 albertel 1471: }
1472: return '';
1473: }
1474: }
1475:
1.170 www 1476: sub start_instructorcomment {
1.201 albertel 1477: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1478:
1479: my $result;
1480:
1.339 albertel 1481: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1482: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1483: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1484: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1485: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1486: $parser,$style);
1.170 www 1487: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1488: }
1489: $result='';
1490: } elsif ($target eq 'edit') {
1491: $result .=&Apache::edit::tag_start($target,$token);
1492: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1493: }
1494: return $result;
1495: }
1496:
1497: sub end_instructorcomment {
1.159 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1499: my $result;
1500: if ($target eq "edit") {
1501: $result.= &Apache::edit::tag_end($target,$token,'');
1502: }
1503: return $result;
1.4 tsai 1504: }
1505:
1506: sub start_while {
1.326 albertel 1507: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1508:
1.160 albertel 1509: my $result;
1.339 albertel 1510: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1511: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1512: my $code = $token->[2]->{'condition'};
1.4 tsai 1513:
1.160 albertel 1514: push( @Apache::structuretags::whileconds, $code);
1515: if (!$Apache::lonxml::default_homework_loaded) {
1516: &Apache::lonxml::default_homework_load($safeeval);
1517: }
1518: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1519: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1520: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1521: push( @Apache::structuretags::whileline, $token->[5]);
1522: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1523: if ( $result ) {
1524: &Apache::lonxml::newparser($parser,\$bodytext);
1525: }
1526: } elsif ($target eq 'edit') {
1527: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1528: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1529: $token,40);
1530: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1531: } elsif ($target eq 'modified') {
1532: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1533: $safeeval,'condition');
1534: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1535: }
1.160 albertel 1536: return $result;
1.4 tsai 1537: }
1538:
1539: sub end_while {
1.159 albertel 1540: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1541: my $result;
1542:
1.339 albertel 1543: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1544: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1545: my $code = pop(@Apache::structuretags::whileconds);
1546: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1547: my $line = pop(@Apache::structuretags::whileline);
1548: my $return = &Apache::run::run($code,$safeeval);
1549: my $starttime=time;
1550: my $error=0;
1551: while ($return) {
1552: if (time-$starttime >
1553: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1554: $return = 0; $error=1; next;
1.161 albertel 1555: }
1556: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1557: if ($target eq 'grade' || $target eq 'answer' ||
1558: $target eq 'analyze') {
1559: # grade/answer/analyze should produce no output but if we
1560: # are redirecting, the redirecter should know what to do
1561: # with the output
1562: if (!$Apache::lonxml::redirection) { undef($result); }
1563: }
1.161 albertel 1564: $return = &Apache::run::run($code,$safeeval);
1565: }
1566: if ($error) {
1.430 bisitz 1567: &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 1568: }
1569: } elsif ($target eq "edit") {
1570: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1571: }
1.160 albertel 1572: return $result;
1.1 albertel 1573: }
1.6 tsai 1574:
1.160 albertel 1575: # <randomlist show="1">
1.6 tsai 1576: # <tag1>..</tag1>
1577: # <tag2>..</tag2>
1578: # <tag3>..</tag3>
1.160 albertel 1579: # ...
1.6 tsai 1580: # </randomlist>
1581: sub start_randomlist {
1.326 albertel 1582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1583: my $result;
1.339 albertel 1584: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1585: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1586: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1587: my $b_parser= HTML::LCParser->new(\$body);
1588: $b_parser->xml_mode(1);
1589: $b_parser->marked_sections(1);
1.159 albertel 1590: my $b_tok;
1591: my @randomlist;
1592: my $list_item;
1593: while($b_tok = $b_parser->get_token() ) {
1594: if($b_tok->[0] eq 'S') { # start tag
1595: # get content of the tag until matching end tag
1596: # get all text upto the matching tag
1597: # and push the content into @randomlist
1598: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1599: $b_parser);
1600: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1601: push(@randomlist,$list_item);
1602: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1603: # $list_item</b>";
1604: }
1605: if($b_tok->[0] eq 'T') { # text
1606: # what to do with text in between tags?
1607: # print "<b>TEXT $b_tok->[1]</b><br />";
1608: }
1609: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1610: # print "<b>END-TAG $b_tok->[1]</b><br />";
1611: # }
1612: }
1.303 albertel 1613: if (@randomlist) {
1614: my @idx_arr = (0 .. $#randomlist);
1615: &Apache::structuretags::shuffle(\@idx_arr);
1616: my $bodytext = '';
1617: my $show=$#randomlist;
1618: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1619: $showarg--;
1620: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1621: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1622: my @currlist;
1623: my $part = $Apache::inputtags::part;
1624: if ($part ne '') {
1625: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1626: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1627: if (!(grep(/^\Q$part\E$/,@currlist))) {
1628: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1629: }
1630: } else {
1631: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1632: }
1633: }
1634: }
1.303 albertel 1635: for(0 .. $show) {
1636: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1637: }
1638: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1639: }
1640: } elsif ($target eq 'edit' ) {
1641: $result .=&Apache::edit::tag_start($target,$token);
1642: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1643: $token,5);
1644: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1645: } elsif ($target eq 'modified' ) {
1646: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1647: $safeeval,'show');
1648: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1649: }
1650: return $result;
1.7 tsai 1651: }
1652:
1653: sub shuffle {
1654: my $a=shift;
1655: my $i;
1.303 albertel 1656: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1657: &Apache::response::pushrandomnumber();
1.159 albertel 1658: for($i=@$a;--$i;) {
1659: my $j=int(&Math::Random::random_uniform() * ($i+1));
1660: next if $i == $j;
1661: @$a[$i,$j] = @$a[$j,$i];
1662: }
1.251 albertel 1663: &Apache::response::poprandomnumber();
1.7 tsai 1664: }
1.6 tsai 1665: }
1666:
1667: sub end_randomlist {
1.159 albertel 1668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1669: my $result;
1670: if ($target eq 'edit' ) {
1671: $result=&Apache::edit::tag_end($target,$token,
1672: 'End Randomly Parsed Block');
1673: }
1674: return $result;
1.6 tsai 1675: }
1676:
1.283 albertel 1677: sub ordered_show_check {
1678: my $last_part=$Apache::inputtags::partlist[-2];
1679: my $in_order=
1680: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1681: my $in_order_show=1;
1682: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1683: $in_order_show=&Apache::response::check_status($last_part);
1684: }
1685: return $in_order_show;
1686: }
1687:
1.11 albertel 1688: sub start_part {
1.326 albertel 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1690: if (!$Apache::lonxml::metamode) {
1691: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1692: # duedates.
1693: }
1.159 albertel 1694: my $result='';
1.386 albertel 1695: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1696: $Apache::inputtags::part=$id;
1.177 albertel 1697: push(@Apache::inputtags::partlist,$id);
1698: @Apache::inputtags::response=();
1.159 albertel 1699: @Apache::inputtags::previous=();
1700: @Apache::inputtags::previous_version=();
1.405 albertel 1701: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1702: &Apache::response::reset_params();
1703:
1.159 albertel 1704: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1705: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1706: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1707: my $in_order_show=&ordered_show_check();
1.214 albertel 1708: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1709: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1710: &Apache::run::run($expression,$safeeval);
1.159 albertel 1711:
1712: if ($target eq 'meta') {
1.224 www 1713: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1714: return &Apache::response::mandatory_part_meta.
1715: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1716: } elsif ($target eq 'web' || $target eq 'grade' ||
1717: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1718: if ($hidden || !$in_order_show) {
1.326 albertel 1719: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1720: } else {
1721: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1722: push (@Apache::inputtags::status,$status);
1723: my $expression='$external::datestatus="'.$status.'";';
1724: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1725: &Apache::run::run($expression,$safeeval);
1.284 albertel 1726: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1727: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1728: }
1.216 albertel 1729: if (( $status eq 'CLOSED' ) ||
1730: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1731: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1732: ( $status eq 'BANNED') ||
1733: ( $status eq 'UNAVAILABLE') ||
1734: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1735: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1736: $style);
1.159 albertel 1737: if ( $target eq "web" ) {
1.211 albertel 1738: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1739: } elsif ( $target eq 'tex' ) {
1.284 albertel 1740: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1741: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1742: } else {
1.211 albertel 1743: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1744: }
1.159 albertel 1745: }
1746: } else {
1747: if ($target eq 'tex') {
1.284 albertel 1748: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1749: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1750: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1751: } else {
1752: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1753: }
1.195 sakharuk 1754: }
1.159 albertel 1755: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1756: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1757: my @allkeys = split /,/,$allkeys;
1758: my $allow_print_points = 0;
1759: foreach my $partial_key (@allkeys) {
1.230 albertel 1760: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1761: if ($1 ne '0') {$allow_print_points=1;}
1762: }
1763: }
1.275 albertel 1764: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1765: if (defined($maxtries) && $maxtries < 0) {
1766: $allow_print_points=0;
1767: }
1.302 albertel 1768: if (lc($env{'course.'.$env{'request.course.id'}.
1769: '.disableexampointprint'}) eq 'yes') {
1770: $allow_print_points=0;
1771: }
1.222 sakharuk 1772: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1773: } elsif ($target eq 'web') {
1.356 www 1774: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1775: }
1776: }
1777: }
1778: } elsif ($target eq 'edit') {
1779: $result.=&Apache::edit::tag_start($target,$token);
1780: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1781: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1782: ' '.
1783: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1784: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1785: } elsif ($target eq 'modified') {
1786: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1787: $safeeval,'id','display');
1.159 albertel 1788: if ($constructtag) {
1.225 albertel 1789: #limiting ids to only letters numbers, and space
1.224 www 1790: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1791: $result = &Apache::edit::rebuild_tag($token);
1792: }
1793: }
1794: return $result;
1.11 albertel 1795: }
1796:
1797: sub end_part {
1.159 albertel 1798: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1799: &Apache::lonxml::debug("in end_part $target ");
1800: my $status=$Apache::inputtags::status['-1'];
1801: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1802: my $in_order_show=&ordered_show_check();
1.321 albertel 1803: my $result;
1804: if (!$Apache::lonxml::metamode) {
1805: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1806: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1807: }
1.312 albertel 1808: if ($target eq 'grade') {
1.249 albertel 1809: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1810: !$hidden && $in_order_show) {
1.311 foxr 1811: $result.=&Apache::inputtags::grade;
1.249 albertel 1812: } else {
1813: # move any submission data to .hidden
1814: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1815: }
1.283 albertel 1816: } elsif (($target eq 'web' || $target eq 'tex') &&
1817: !$hidden && $in_order_show) {
1.159 albertel 1818: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1819: $target);
1.212 albertel 1820: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1821: $gradestatus='';
1822: }
1.311 foxr 1823: $result.=$gradestatus;
1.265 sakharuk 1824: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1825: } elsif ($target eq 'edit') {
1.311 foxr 1826: $result.=&Apache::edit::end_table();
1.322 albertel 1827: } elsif ($target eq 'modified') {
1828: $result .= $token->[2];
1.159 albertel 1829: }
1830: pop @Apache::inputtags::status;
1831: $Apache::inputtags::part='';
1.295 albertel 1832: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1833: return $result;
1.11 albertel 1834: }
1.1 albertel 1835:
1.25 albertel 1836: sub start_preduedate {
1.326 albertel 1837: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1838: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1839: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1840: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1841: if (!$Apache::lonhomework::scantronmode &&
1842: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1843: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1844: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1845: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1846: }
1.24 albertel 1847: }
1.159 albertel 1848: return '';
1.24 albertel 1849: }
1850:
1.25 albertel 1851: sub end_preduedate {
1.159 albertel 1852: return '';
1.24 albertel 1853: }
1854:
1.369 foxr 1855: # In all the modes where <postanswerdate> text is
1856: # displayable, all we do is eat up the text between the start/stop
1857: # tags if the conditions are not right to display it.
1.25 albertel 1858: sub start_postanswerdate {
1.326 albertel 1859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1860: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1861: &Apache::lonnet::allowed('pav',
1862: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1863: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1864: $target eq 'tex' ) {
1.300 albertel 1865: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1866: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1867: (($target eq 'tex') && !$pav)) {
1.326 albertel 1868: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1869: }
1870: }
1871: return '';
1.24 albertel 1872: }
1873:
1.25 albertel 1874: sub end_postanswerdate {
1.159 albertel 1875: return '';
1.24 albertel 1876: }
1877:
1.25 albertel 1878: sub start_notsolved {
1.326 albertel 1879: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1880: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1881: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1882: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1883: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1884: if ($gradestatus =~ /^correct/ &&
1885: &Apache::response::show_answer()) {
1.159 albertel 1886: &Apache::lonxml::debug("skipping");
1.326 albertel 1887: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1888: }
1.24 albertel 1889: }
1.159 albertel 1890: return '';
1.24 albertel 1891: }
1892:
1.25 albertel 1893: sub end_notsolved {
1.159 albertel 1894: return '';
1.24 albertel 1895: }
1896:
1897: sub start_solved {
1.326 albertel 1898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1899: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1900: $target eq 'tex') {
1901: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1902: if ($gradestatus !~ /^correct/ ||
1903: !&Apache::response::show_answer()) {
1.326 albertel 1904: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1905: }
1.24 albertel 1906: }
1.159 albertel 1907: return '';
1.24 albertel 1908: }
1909:
1910: sub end_solved {
1.248 albertel 1911: return '';
1912: }
1913:
1914: sub start_problemtype {
1.326 albertel 1915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1916: my $result;
1.339 albertel 1917: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1918: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1919: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1920: if (!defined($mode)) { $mode='show'; }
1921: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1922: my $found=0;
1923: foreach my $type (split(',',$for)) {
1924: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1925: }
1926: if ($mode eq 'show' && !$found) {
1.326 albertel 1927: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1928: }
1929: if ($mode eq 'hide' && $found) {
1.326 albertel 1930: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1931: }
1932: } elsif ($target eq 'edit') {
1933: $result .=&Apache::edit::tag_start($target,$token);
1934: $result.=&Apache::edit::select_arg('Mode:','mode',
1935: [['show','Show'],
1936: ['hide','Hide']]
1937: ,$token);
1938: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1939: [ ['exam','Exam/Quiz Problem'],
1940: ['survey','Survey'],
1.428 raeburn 1941: ['problem','Homework Problem'],
1942: ['practice','Practice Problem'] ]
1.248 albertel 1943: ,$token);
1944: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1945: } elsif ($target eq 'modified') {
1946: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1947: $safeeval,'mode','for');
1948: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1949: }
1950: return $result;
1951: }
1952:
1953: sub end_problemtype {
1.159 albertel 1954: return '';
1.24 albertel 1955: }
1.34 albertel 1956:
1957: sub start_startouttext {
1.159 albertel 1958: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1959: my @result=(''.'');
1960: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1961:
1962: my $nesting =
1963: &Apache::lonxml::set_state('outtext',
1964: &Apache::lonxml::get_state('outtext')+1);
1965: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1966: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1967: }
1.159 albertel 1968: return (@result);
1.34 albertel 1969: }
1.159 albertel 1970:
1.34 albertel 1971: sub end_startouttext {
1.326 albertel 1972: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1973: my $result='';
1974: my $text='';
1975: if ($target eq 'edit') {
1.424 foxr 1976: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1977: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1978: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1979: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1980: .&Apache::edit::deletelist($target,$token)
1981: .'</span></td>';
1.425 raeburn 1982: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1983: $result .= '<td align="left">'
1984: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1985: .'</td>'
1986: .'<td>'
1987: .&Apache::edit::insertlist($target,$token)
1988: .'</td>';
1989: }
1.425 raeburn 1990: $result.='<td align="right" valign="top">' .
1.434 foxr 1991: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1992: &Apache::edit::end_row().
1.362 albertel 1993: &Apache::edit::start_spanning_row()."\n".
1.255 www 1994: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1995: }
1996: if ($target eq 'modified') {
1.219 albertel 1997: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1998: }
1999: if ($target eq 'tex') {
2000: $result .= '\noindent ';
2001: }
2002: return $result;
1.34 albertel 2003: }
1.159 albertel 2004:
1.34 albertel 2005: sub start_endouttext {
1.159 albertel 2006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2007: my $result='';
2008: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2009: if ($target eq "modified") {
2010: $result='<endouttext />'.
1.377 albertel 2011: &Apache::edit::handle_insertafter('startouttext');
2012: }
1.404 albertel 2013:
2014: my $nesting =
2015: &Apache::lonxml::set_state('outtext',
2016: &Apache::lonxml::get_state('outtext')-1);
2017: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2018: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2019: &Apache::lonxml::set_state('outtext', 0);
2020: }
1.159 albertel 2021: return $result;
1.34 albertel 2022: }
1.159 albertel 2023:
1.34 albertel 2024: sub end_endouttext {
1.159 albertel 2025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2026: my @result=('','');
2027: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2028: return (@result);
1.34 albertel 2029: }
1.159 albertel 2030:
1.45 albertel 2031: sub delete_startouttext {
1.326 albertel 2032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2033: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2034: my $text=$$parser['-1']->get_text("/endouttext");
2035: my $ntoken=$$parser['-1']->get_token();
2036: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2037: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2038: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2039: # they did the last time round
2040: &Apache::lonxml::increasedepth($ntoken);
2041: &Apache::lonxml::decreasedepth($ntoken);
2042: return 1;
1.193 www 2043: }
2044:
2045: sub start_simpleeditbutton {
2046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2047: my $result='';
1.284 albertel 2048: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2049: ($target eq 'web') &&
1.330 albertel 2050: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2051: my $url=$env{'request.noversionuri'};
1.193 www 2052: $url=~s/\?.*$//;
1.367 albertel 2053: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2054: # Warning make more sense and is more important on edit screen
2055: # $result='<p class="LC_warning">'
2056: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2057: # .&Apache::loncommon::help_open_topic('Caching')
2058: # .'</p>';
2059: $result.=&Apache::lontemplate::start_functionslist()
2060: .&Apache::lontemplate::item_functionslist(
2061: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')
2062: .&Apache::lontemplate::end_functionslist();
2063:
1.193 www 2064: }
2065: return $result;
2066: }
2067:
2068: sub end_simpleeditbutton {
2069: return '';
1.45 albertel 2070: }
1.34 albertel 2071:
1.428 raeburn 2072: sub practice_problem_header {
2073: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2074: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2075: '</span>';
2076: }
2077:
1.1 albertel 2078: 1;
2079: __END__
1.435 jms 2080:
2081: =pod
2082:
2083: =back
2084:
2085: =cut
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