Annotation of loncom/homework/structuretags.pm, revision 1.461
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.461 ! raeburn 4: # $Id: structuretags.pm,v 1.460 2009/11/18 20:47:52 droeschl 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: });
1.460 droeschl 221: # breadcrumbs (and tools) will be created
222: # in start_page->bodytag->innerregister
223:
1.450 bisitz 224: # FIXME Where are we?
225: # &Apache::lonhtmlcommon::add_breadcrumb({
226: # 'text' => 'Problem Editing', # 'Problem Testing'
227: # 'href' => '',
228: # });
1.460 droeschl 229: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 230: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 231: }
1.272 albertel 232: } elsif (!defined($found{'body'})) {
1.343 albertel 233: my %add_entries;
1.159 albertel 234: my $background=&Apache::lonxml::get_param('background',$parstack,
235: $safeeval);
1.343 albertel 236: if ($background ne '' ) {
237: $add_entries{'background'} = $background;
238: }
1.344 albertel 239:
1.290 albertel 240: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
241: $safeeval);
1.446 bisitz 242: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 243:
1.446 bisitz 244: $body_args{'bgcolor'} = $bgcolor;
245: # $body_args{'no_title'} = 1;
246: $body_args{'force_register'} = 1;
247: $body_args{'add_entries'} = \%add_entries;
248: if ($env{'environment.remote'} eq 'off'
249: && $env{'request.state'} eq 'construct') {
250: $body_args{'only_body'} = 1;
251: }
1.344 albertel 252: }
1.365 albertel 253: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 254: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
255: \%body_args);
1.446 bisitz 256: $page_start .= $pageheader;
1.461 ! raeburn 257:
! 258: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 259: if (!defined($found{'body'})
! 260: && $env{'request.state'} ne 'construct'
! 261: && ($target eq 'web' || $target eq 'webgrade')) {
! 262:
! 263: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
! 264: if ($symb eq '' && !$publicuser) {
! 265: $page_start .= '<p class="LC_info">'
! 266: .&mt('Browsing resource, all submissions are temporary.')
! 267: .'</p>';
! 268: }
1.457 bisitz 269: }
1.344 albertel 270: }
271:
1.409 albertel 272: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 273: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 274: }
1.344 albertel 275:
1.159 albertel 276: my $form_tag_start;
277: if (!defined($found{'form'})) {
1.337 albertel 278: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.455 droeschl 279: my $uri = Apache::loncommon::inhibit_menu_check(
280: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.327 albertel 281: $form_tag_start.=$uri.'" ';
282: if ($target eq 'edit') {
283: $form_tag_start.=&Apache::edit::form_change_detection();
284: }
1.368 albertel 285: $form_tag_start.='>'."\n";
1.355 albertel 286:
287: my $symb=&Apache::lonnet::symbread();
288: if ($symb =~ /\S/) {
289: $symb=
290: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
291: $form_tag_start.=
1.368 albertel 292: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 293: }
1.159 albertel 294: }
1.343 albertel 295: return ($page_start,$form_tag_start);
1.105 albertel 296: }
297:
1.141 matthew 298: #use Time::HiRes();
1.105 albertel 299: sub get_resource_name {
1.159 albertel 300: my ($parstack,$safeeval)=@_;
1.388 foxr 301: my $name;
1.204 albertel 302: if (defined($Apache::lonhomework::name)) {
1.388 foxr 303: $name = $Apache::lonhomework::name;
304: } else {
305: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 306: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 307: if ($name eq '') {
308: $name=&Apache::lonnet::EXT('resource.title');
309: if ($name eq 'con_lost') { $name = ''; }
310: }
311: if ($name!~/\S+/) {
312: $name=$env{'request.uri'};
313: $name=~s-.*/([^/]+)$-$1-;
314: }
315: # The name has had html tags escaped:
316:
317: $name=~s/</</gs;
318: $name=~s/>/>/gs;
319:
320: $Apache::lonhomework::name=$name;
1.204 albertel 321: }
1.159 albertel 322: return $name;
1.105 albertel 323: }
324:
325: sub setup_rndseed {
1.159 albertel 326: my ($safeeval)=@_;
327: my $rndseed;
1.367 albertel 328: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 329: if ($env{'request.state'} eq "construct"
330: || $symb eq ''
331: || $Apache::lonhomework::type eq 'practice'
332: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 333: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 334: ['rndseed']);
1.284 albertel 335: $rndseed=$env{'form.rndseed'};
1.159 albertel 336: if (!$rndseed) {
1.162 albertel 337: $rndseed=$Apache::lonhomework::history{'rndseed'};
338: if (!$rndseed) {
339: $rndseed=time;
340: }
1.284 albertel 341: $env{'form.rndseed'}=$rndseed;
1.162 albertel 342: }
1.374 albertel 343: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
344: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 345: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 346: srand(time);
347: $rndseed=int(rand(2100000000));
1.284 albertel 348: $env{'form.rndseed'}=$rndseed;
349: delete($env{'form.resetdata'});
350: delete($env{'form.newrandomization'});
1.159 albertel 351: }
1.187 albertel 352: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 353: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 354: }
1.247 albertel 355: if ($Apache::lonhomework::history{'resource.CODE'}) {
356: $rndseed=&Apache::lonnet::rndseed();
357: }
1.221 albertel 358: if ($safeeval) {
359: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 360: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 361: }
1.159 albertel 362: }
363: return $rndseed;
1.105 albertel 364: }
365:
1.268 albertel 366: sub remember_problem_state {
367: return '
1.284 albertel 368: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
369: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
370: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 371: }
372:
1.423 www 373: sub problem_edit_buttons {
374: return '
1.408 albertel 375: <div class="LC_edit_problem_discards">
1.416 raeburn 376: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 377: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 378: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 379: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 380: </div>
381: <div class="LC_edit_problem_saves">
1.416 raeburn 382: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
383: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 384: </div>';
385: }
386:
387: sub problem_edit_header {
388: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
389: &Apache::structuretags::remember_problem_state().'
390: <div class="LC_edit_problem_header">
391: <div class="LC_edit_problem_header_title">
392: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
393: </div>'.
394: &problem_edit_buttons().'
1.459 bisitz 395: <hr style="clear:both;" />
1.409 albertel 396: '.&Apache::lonxml::message_location().'
1.408 albertel 397: </div>
398: '.
1.458 bisitz 399: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 400: }
401:
402: sub problem_edit_footer {
1.412 albertel 403: return '</td></tr></table><br />
404: <div class="LC_edit_problem_footer">
1.453 bisitz 405: <hr />'.
1.423 www 406: &problem_edit_buttons().'
1.459 bisitz 407: <hr style="clear:both;" />
1.412 albertel 408: </div>
409: '.
410:
1.348 albertel 411: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 412: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 413: }
414:
1.235 albertel 415: sub option {
416: my ($value,$name) = @_;
417: my $result ="<option value='".$value."' ";
1.284 albertel 418: if ($env{'form.'.$name} eq $value) {
1.235 albertel 419: $result.=" selected='on' ";
420: }
421: $result.='>';
422: return $result;
423: }
424:
1.105 albertel 425: sub problem_web_to_edit_header {
1.159 albertel 426: my ($rndseed)=@_;
1.406 albertel 427: my $result .= '<div class="LC_edit_problem_header">';
428:
429: if (!$Apache::lonhomework::parsing_a_task) {
430: $result .=
431: '<div class="LC_edit_problem_header_title">'.
432: &mt('Problem Testing').
433: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
434: '</div>';
435: } else {
436: $result .=
437: '<div class="LC_edit_problem_header_title">'.
438: &mt('Task Testing').
439: '</div>';
440: }
441:
1.315 albertel 442: my $show_all_foils_text =
443: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 444: &mt('Show All Instances')
445: : &mt('Show All Foils');
1.315 albertel 446:
1.452 bisitz 447: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
448: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 449: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 450: $show_all.= ' /> '.$show_all_foils_text
451: .'</label></span>';
1.406 albertel 452:
453:
1.384 albertel 454:
1.406 albertel 455: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 456: if (!$Apache::lonhomework::parsing_a_task) {
457: $result.="
1.406 albertel 458: <div class='LC_edit_problem_header_row1'>
459: <span class=\"LC_nobreak\">
1.405 albertel 460: ".&mt("Problem Status:")."
1.235 albertel 461: <select name='problemstate'>
1.270 albertel 462: <option value=''></option>
1.235 albertel 463: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
464: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
465: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
466: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
467: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
468: </select>
1.406 albertel 469: </span>
470: <span class=\"LC_nobreak\">
1.405 albertel 471: ".&mt("Problem Type:")."
1.235 albertel 472: <select name='problemtype'>
1.270 albertel 473: <option value=''></option>
1.242 albertel 474: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 475: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 476: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 477: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 478: </select>
1.406 albertel 479: </span>
480: $show_all
481: </div>
482: <div class='LC_edit_problem_header_row2'>
483: <span class=\"LC_nobreak\">
1.405 albertel 484: ".&mt("Feedback Mode:")."
1.235 albertel 485: <select name='problemstatus'>
486: <option value=''></option>
1.242 albertel 487: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 488: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
489: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 490: </select>
1.406 albertel 491: </span>
492: ";
493:
1.376 albertel 494: } elsif ($Apache::lonhomework::parsing_a_task) {
495: $result.="
1.406 albertel 496: <div class='LC_edit_problem_header_row1'>
497: <span class=\"LC_nobreak\">
1.405 albertel 498: ".&mt("Problem Status:")."
1.376 albertel 499: <select name='problemstate'>
500: <option value=''></option>
501: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
502: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
503: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
504: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
505: </select>
1.406 albertel 506: </span>
507: $show_all
508: ";
509: }
510: $result.='
511: <span class="LC_nobreak">
512: '.&mt('Apply style file: ').'
513: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
514: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
515: </span>
1.422 www 516: </div>
517: <div class="LC_edit_problem_header_row1">'.
518: &Apache::lonxml::renderingoptions().'
1.406 albertel 519: </div>
520: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
521: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
522: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
523: </div>
1.453 bisitz 524: <hr />
1.406 albertel 525: <div class="LC_edit_problem_header_randomize_row">
526: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
527: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
528: <input type="text" name="rndseed" size="10" value="'.
529: $rndseed.'"
530: onchange="javascript:document.lonhomework.changerandseed.click()" />';
531:
532: if (!$Apache::lonhomework::parsing_a_task) {
533: my $numtoanalyze=$env{'form.numtoanalyze'};
534: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 535: $result .= '<span class="LC_nobreak">'.
536: &mt('[_1] for [_2] versions.',
1.416 raeburn 537: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 538: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
539: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 540: $numtoanalyze.'" size="5" />').
541: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
542: '</span>';
543:
1.313 albertel 544: }
1.406 albertel 545:
546: $result.='
547: </div>
1.453 bisitz 548: <hr />
1.447 bisitz 549: <div>';
1.416 raeburn 550: $result.='<input type="hidden" name="problemmode" value="view" />';
551: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
552: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
553: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
554: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 555: $result.='
556: </div>
1.453 bisitz 557: <hr />
1.409 albertel 558: '.&Apache::lonxml::message_location().'
1.406 albertel 559: </div>';
1.159 albertel 560: return $result;
1.48 albertel 561: }
562:
1.65 albertel 563: sub initialize_storage {
1.357 albertel 564: my ($given_symb) = @_;
1.353 albertel 565: undef(%Apache::lonhomework::results);
566: undef(%Apache::lonhomework::history);
1.357 albertel 567: my ($symb,$courseid,$domain,$name) =
1.367 albertel 568: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 569:
570: # anonymous users (CODEd exams) have no data
571: if ($name eq 'anonymous'
572: && !defined($domain)) {
573: return;
574: }
575:
1.333 albertel 576: if ($env{'request.state'} eq 'construct'
577: || $symb eq ''
578: || $Apache::lonhomework::type eq 'practice') {
579:
580: my $namespace = $symb || $env{'request.uri'};
581: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 582: ($env{'form.resetdata'} eq &mt('New Problem Variation')
583: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 584: $env{'form.newrandomization'} eq &mt('New Randomization')) {
585: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
586: &Apache::lonxml::debug("Attempt reset");
587: }
1.159 albertel 588: %Apache::lonhomework::history=
1.333 albertel 589: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 590: my ($temp)=keys %Apache::lonhomework::history ;
591: &Apache::lonxml::debug("Return message of $temp");
592: } else {
593: %Apache::lonhomework::history=
594: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
595: }
1.353 albertel 596:
1.159 albertel 597: #ignore error conditions
1.67 albertel 598: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 599: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 600: }
601:
1.435 jms 602: =pod
603:
604: =item finalize_storage()
605:
606: Stores away the result has to a student's environment
607: checks form.grade_ for specific values, other wises stores
608: to the running users environment
609: Will increment totals for attempts, students, and corrects
610: if running user has student role.
611:
612: =cut
613:
614:
1.65 albertel 615: sub finalize_storage {
1.357 albertel 616: my ($given_symb) = @_;
1.159 albertel 617: my $result;
1.289 albertel 618: if (%Apache::lonhomework::results) {
1.323 albertel 619: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
620: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 621: my ($symb,$courseid,$domain,$name) =
1.367 albertel 622: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 623: if ($env{'request.state'} eq 'construct'
624: || $symb eq ''
625: || $Apache::lonhomework::type eq 'practice') {
626: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 627: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 628: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 629: $namespace,'',$domain,$name);
1.159 albertel 630: &Apache::lonxml::debug('Construct Store return message:'.$result);
631: } else {
632: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
633: $symb,$courseid,$domain,$name);
634: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 635: if ($env{'request.role'} =~/^st/) {
636: &store_aggregates($symb,$courseid);
637: }
1.159 albertel 638: }
1.323 albertel 639: } else {
640: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 641: }
1.159 albertel 642: return $result;
1.65 albertel 643: }
644:
1.435 jms 645: =pod
646:
647: item store_aggregates()
648:
649: Sends hash of values to be incremented in nohist_resourcetracker.db
650: for the course. Increments total number of attempts, unique students
651: and corrects for each part for an instance of a problem, as appropriate.
652:
653: =cut
654:
1.285 raeburn 655: sub store_aggregates {
656: my ($symb,$courseid) = @_;
1.286 albertel 657: my %aggregate;
658: my @parts;
1.288 albertel 659: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
660: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 661: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 662: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 663: push(@parts, $1);
1.285 raeburn 664: }
665: }
1.286 albertel 666: foreach my $part (@parts) {
667: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
668: eq 'APPROX_ANS' ||
669: $Apache::lonhomework::results{'resource.'.$part.'.award'}
670: eq 'EXACT_ANS') {
1.287 albertel 671: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 672: }
1.286 albertel 673: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 674: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 675: } else {
1.293 albertel 676: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 677: if ($last_reset) {
1.293 albertel 678: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 679: $aggregate{$symb."\0".$part."\0users"} = 1;
680: }
681: }
1.285 raeburn 682: }
1.287 albertel 683: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 684: }
1.292 raeburn 685: if (keys (%aggregate) > 0) {
1.289 albertel 686: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 687: $cdomain,$cname);
688: }
689: }
1.289 albertel 690:
1.65 albertel 691: sub checkout_msg {
1.211 albertel 692: my %lt=&Apache::lonlocal::texthash(
693: 'resource'=>'The resource needs to be checked out',
694: '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.',
695: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
696: 'checkout'=>'Check out Exam for Viewing',
697: 'checkout?'=>'Check out Exam?');
1.352 albertel 698: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 699: return (<<ENDCHECKOUT);
1.211 albertel 700: <h2>$lt{'resource'}</h2>
701: <p>$lt{'id_expln'}</p>
1.449 bisitz 702: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 703: <form name="checkout" method="post" action="$uri">
1.91 albertel 704: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 705: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 706: </form>
707: ENDCHECKOUT
708: }
709:
1.252 albertel 710: sub firstaccess_msg {
1.253 albertel 711: my ($time,$symb)=@_;
1.414 albertel 712: my $result;
713: my @interval=&Apache::lonnet::EXT("resource.0.interval");
714: if ($interval[1] eq 'map') {
715: my ($map)=&Apache::lonnet::decode_symb($symb);
716: my $foldertitle=&Apache::lonnet::gettitle($map);
717:
718: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 719: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
720: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
721: ,$foldertitle,$time)."</h2>";
1.414 albertel 722: } elsif ($interval[1] eq 'course') {
723: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 724: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
725: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
726: ,$course,$time)."</h2>";
1.414 albertel 727: } else {
728: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 729: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
730: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
731: ,$title,$time)."</h2>";
1.414 albertel 732: }
1.352 albertel 733: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 734: my $buttontext = &mt('Show Resource');
735: my $timertext = &mt('Start Timer?');
1.414 albertel 736: $result .= (<<ENDCHECKOUT);
1.444 bisitz 737: <form name="markaccess" method="post" action="$uri">
1.252 albertel 738: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 739: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 740: </form>
741: ENDCHECKOUT
1.414 albertel 742: return $result;
1.252 albertel 743: }
744:
1.204 albertel 745: sub init_problem_globals {
746: my ($type)=@_;
747: #initialize globals
1.308 foxr 748: # For problems, we start out in part 0 (outside a <part> tag).
749: # and part 0 is used to describe the main body of the <problem>
750: #
1.204 albertel 751: if ($type eq 'problem') {
752: $Apache::inputtags::part='0';
753: @Apache::inputtags::partlist=('0');
1.405 albertel 754: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 755: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 756:
1.266 albertel 757: } elsif ($type eq 'library') {
1.204 albertel 758: $Apache::inputtags::part='';
759: @Apache::inputtags::partlist=();
1.405 albertel 760: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 761: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 762:
1.304 albertel 763: } elsif ($type eq 'Task') {
764: $Apache::inputtags::part='0';
765: @Apache::inputtags::partlist=('0');
1.405 albertel 766: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 767: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 768: }
769: @Apache::inputtags::responselist = ();
770: @Apache::inputtags::importlist = ();
771: @Apache::inputtags::previous=();
772: @Apache::inputtags::previous_version=();
773: $Apache::structuretags::printanswer='No';
774: @Apache::structuretags::whileconds=();
775: @Apache::structuretags::whilebody=();
776: @Apache::structuretags::whileline=();
777: $Apache::lonhomework::scantronmode=0;
778: undef($Apache::lonhomework::name);
1.358 albertel 779: undef($Apache::lonhomework::default_type);
780: undef($Apache::lonhomework::type);
1.204 albertel 781: }
782:
783: sub reset_problem_globals {
784: my ($type)=@_;
785: undef(%Apache::lonhomework::history);
786: undef(%Apache::lonhomework::results);
787: undef($Apache::inputtags::part);
1.208 albertel 788: #don't undef this, lonhomework.pm takes care of this, we use this to
789: #detect if we try to do 2 problems in one file
790: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 791: undef($Apache::lonhomework::name);
1.358 albertel 792: undef($Apache::lonhomework::default_type);
793: undef($Apache::lonhomework::type);
794: undef($Apache::lonhomework::scantronmode);
795: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 796: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 797: }
798:
1.241 albertel 799: sub set_problem_state {
1.240 albertel 800: my ($part)=@_;
1.284 albertel 801: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 802: $Apache::lonhomework::history{"resource.$part.solved"}=
803: 'correct_by_student';
804: }
805: }
806:
1.241 albertel 807: sub get_problem_status {
808: my ($part)=@_;
1.267 albertel 809: my $problem_status;
1.284 albertel 810: if ($env{'request.state'} eq 'construct' &&
811: defined($env{'form.problemstatus'})) {
812: $problem_status=$env{'form.problemstatus'};
1.267 albertel 813: } else {
814: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
815: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 816: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 817: }
818: return $problem_status;
819: }
820:
1.9 albertel 821: sub start_problem {
1.326 albertel 822: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 823:
1.311 foxr 824: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 825: if (!$Apache::lonxml::metamode) {
826: &Apache::lonxml::startredirection();
827: }
1.311 foxr 828:
1.308 foxr 829: # Problems don't nest and we don't allow more than one <problem> in
830: # a .problem file.
831: #
1.184 albertel 832: if ( $Apache::inputtags::part ne '' ||
833: $Apache::lonhomework::parsing_a_problem) {
834: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 835: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 836: return '';
837: }
1.184 albertel 838:
839: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 840: &init_problem_globals('problem');
1.166 albertel 841:
1.284 albertel 842: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 843: $Apache::lonhomework::scantronmode=1;
844: }
1.161 albertel 845:
1.159 albertel 846: if ($target ne 'analyze') {
1.415 raeburn 847: my $type = &Apache::lonnet::EXT('resource.0.type');
848: $Apache::lonhomework::type=$type;
1.284 albertel 849: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 850: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 851: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 852: }
1.332 albertel 853: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 854: }
1.164 albertel 855: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 856: my $uri=$env{'request.uri'};
1.159 albertel 857: if ($uri=~/\.(\w+)$/) {
858: $Apache::lonhomework::type=$1;
859: &Apache::lonxml::debug("Using type of $1");
860: } else {
861: $Apache::lonhomework::type='problem';
862: &Apache::lonxml::debug("Using default type, problem, :$uri:");
863: }
1.87 albertel 864: }
1.301 albertel 865: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 866:
1.363 albertel 867: &initialize_storage();
1.389 albertel 868: if ($target ne 'analyze'
869: && $env{'request.state'} eq 'construct') {
870: &set_problem_state('0');
871: }
872:
1.366 albertel 873: if ($target eq 'web') {
874: &Apache::lonxml::debug(" grading history ");
875: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
876: }
1.363 albertel 877:
1.159 albertel 878: #added vars to the scripting enviroment
1.213 albertel 879: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 880: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 881: &Apache::run::run($expression,$safeeval);
1.159 albertel 882: my $status;
883: my $accessmsg;
884:
1.343 albertel 885: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 886: my ($result,$form_tag_start);
1.354 albertel 887: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
888: || $target eq 'edit') {
1.350 albertel 889: ($result,$form_tag_start) =
890: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
891: $name);
892: }
893:
1.284 albertel 894: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 895:
896: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
897: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
898: $target eq 'tex') {
899: #handle exam checkout
900: if ($Apache::lonhomework::type eq 'exam') {
901: my $token=
902: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 903: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 904: $token=&Apache::lonxml::maketoken();
905: $Apache::lonhomework::history{"resource.0.outtoken"}=
906: $token;
907: }
1.343 albertel 908: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 909: }
1.284 albertel 910: if ($env{'form.markaccess'}) {
1.414 albertel 911: my @interval=&Apache::lonnet::EXT("resource.0.interval");
912: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 913: }
1.159 albertel 914: #handle rand seed in construction space
915: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 916: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 917: if ($env{'request.state'} ne "construct" &&
918: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 919: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.461 ! raeburn 920: $rndseed.'" />';
! 921: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 922: $form_tag_start .= '<input type="submit" name="resetdata"'.
! 923: ' value="'.&mt('New Problem Variation').'" />';
! 924: }
1.334 albertel 925: if (exists($env{'form.username'})) {
926: $form_tag_start.=
1.164 albertel 927: '<input type="hidden" name="username"
1.284 albertel 928: value="'.$env{'form.username'}.'" />';
1.334 albertel 929: }
1.461 ! raeburn 930: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 931: if ($env{'request.role.adv'}) {
! 932: $form_tag_start.= ' <label class="LC_nobreak">'
! 933: .'<input type="checkbox" name="showallfoils"';
! 934: if (defined($env{'form.showallfoils'})) {
! 935: $form_tag_start.=' checked="checked"';
! 936: }
! 937: $form_tag_start.= ' /> '
! 938: .&mt('Show All Foils')
! 939: .'</label>';
! 940: }
! 941: }
1.417 www 942: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 943: $form_tag_start.=&practice_problem_header();
1.417 www 944: }
1.461 ! raeburn 945: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 946: $form_tag_start.='<hr />';
! 947: }
1.162 albertel 948: }
1.324 albertel 949:
950: ($status,$accessmsg,my $slot_name,my $slot) =
951: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 952: push (@Apache::inputtags::status,$status);
1.324 albertel 953:
1.159 albertel 954: my $expression='$external::datestatus="'.$status.'";';
955: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
956: &Apache::run::run($expression,$safeeval);
957: &Apache::lonxml::debug("Got $status");
1.324 albertel 958:
1.159 albertel 959: if (( $status eq 'CLOSED' ) ||
960: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 961: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 962: ( $status eq 'BANNED') ||
1.216 albertel 963: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 964: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 965: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 966: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
967: $style);
1.159 albertel 968: if ( $target eq "web" ) {
1.343 albertel 969: my $msg;
1.159 albertel 970: if ($status eq 'UNAVAILABLE') {
1.245 albertel 971: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 972: } elsif ($status eq 'NOT_IN_A_SLOT') {
973: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 974: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 975: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 976: }
1.216 albertel 977: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 978: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 979: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 980: $msg.=&checkout_msg();
1.252 albertel 981: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 982: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 983: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 984: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 985: }
986: $result.=$msg.'<br />';
987: } elsif ($target eq 'tex') {
1.332 albertel 988: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
989: : '\begin{minipage}{\textwidth}';
1.443 foxr 990: $result.='\noindent \vskip 1 mm '.
1.332 albertel 991: $startminipage.'\vskip 0 mm';
1.159 albertel 992: if ($status eq 'UNAVAILABLE') {
1.211 albertel 993: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 994: } else {
1.211 albertel 995: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 996: }
997: }
1.324 albertel 998: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 999: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1000: $style);
1.324 albertel 1001: if ($target eq 'web') {
1.375 albertel 1002: $result .=
1003: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1004: } elsif ($target eq 'grade') {
1005: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1006: 'problem');
1007: }
1.159 albertel 1008: } elsif ($target eq 'web') {
1.360 albertel 1009: if ($status eq 'CAN_ANSWER'
1010: && $slot_name ne ''
1011: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1012: # unproctored slot access, self checkin
1013: &Apache::bridgetask::check_in('problem',undef,undef,
1014: $slot_name);
1015: }
1.368 albertel 1016: $result.="\n $form_tag_start \t".
1.227 albertel 1017: '<input type="hidden" name="submitted" value="yes" />';
1018: # create a page header and exit
1.284 albertel 1019: if ($env{'request.state'} eq "construct") {
1020: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1021: if ($Apache::lonhomework::type eq 'practice') {
1022: $result.= '<input type="submit" name="resetdata" '.
1023: 'value="'.&mt('New Problem Variation').'" />'.
1024: &practice_problem_header().'<hr />';
1025: }
1.227 albertel 1026: }
1027: # if we are viewing someone else preserve that info
1.284 albertel 1028: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1029: foreach my $field ('symb','courseid','domain','username') {
1030: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1031: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1032: }
1033: }
1034: } elsif ($target eq 'tex') {
1.319 foxr 1035: $result .= 'INSERTTEXFRONTMATTERHERE';
1036:
1.99 sakharuk 1037: }
1.159 albertel 1038: } elsif ($target eq 'edit') {
1.343 albertel 1039: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1040: $Apache::lonxml::warnings_error_header=
1041: &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 1042: my $temp=&Apache::edit::insertlist($target,$token);
1043: $result.=$temp;
1044: } elsif ($target eq 'modified') {
1045: $result=$token->[4];
1046: } else {
1047: # page_start returned a starting result, delete it if we don't need it
1048: $result = '';
1.99 sakharuk 1049: }
1.159 albertel 1050: return $result;
1.9 albertel 1051: }
1052:
1053: sub end_problem {
1.159 albertel 1054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1055: my $result;
1.310 foxr 1056:
1.321 albertel 1057: if (!$Apache::lonxml::metamode) {
1058: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1059: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1060: }
1.319 foxr 1061:
1062: if ($target eq 'tex') {
1.321 albertel 1063: # Figure out the front matter and replace the
1064: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1065: # this in end_problem because whether or not we display due
1066: # dates depends on whether due dates have already been
1067: # displayed in the problem parts.
1068:
1.319 foxr 1069: my $frontmatter = '';
1070: my $startminipage = '';
1071: if (not $env{'form.problem_split'}=~/yes/) {
1072: $startminipage = '\begin{minipage}{\textwidth}';
1073: }
1074: my $id = $Apache::inputtags::part;
1075: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1076: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1077: my @packages = split /,/,$packages;
1078: my $allow_print_points = 0;
1079: foreach my $partial_key (@packages) {
1080: if ($partial_key=~m/^part_0$/) {
1081: $allow_print_points=1;
1082: }
1083: }
1084: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1085: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1086: if (lc($env{'course.'.$env{'request.course.id'}.
1087: '.disableexampointprint'}) eq 'yes') {
1088: $allow_print_points=0;
1089: }
1090: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1091: 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 1092: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1093: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1094:
1095: # Figure out what the due date is and if we need to print
1096: # it in the problem header. We have been logging the
1097: # last due date written to file.
1098:
1099: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1100: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1101: my $duedate_text = &mt('Due date: [_1]'
1102: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1103: my $temp_file;
1104: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1105:
1106: # Figure out what the last printed due date is or set it
1107: # to the epoch if no duedates have been printed.
1108:
1109: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1110: if (-e $filename) {
1111: $temp_file = Apache::File->new($filename);
1112: my @due_file = <$temp_file>;
1113: $due_file_content = $due_file[$#due_file];
1114: chomp $due_file_content;
1115: }
1116:
1117: # We display the due date iff it is not the same as the last
1118: # duedate in problem header ($due_file_content), and
1119: # none of our parts displayed a duedate.
1120: #
1121: my $parts_with_displayduedate;
1122: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1123: $parts_with_displayduedate =
1124: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1125: } else {
1126: $parts_with_displayduedate = 0;
1127: }
1128: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1129: $temp_file = Apache::File->new('>'.$filename);
1130: print $temp_file "$duetime\n";
1131: if (not $env{'request.symb'} =~ m/\.page_/) {
1132: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1133: $frontmatter .= $begin_doc.
1.448 bisitz 1134: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1135: } else {
1136: $frontmatter.= $begin_doc.$toc_line;
1137: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1138: }
1139: } else {
1.448 bisitz 1140: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1141: }
1142: } else {
1143: if (not $env{'request.symb'} =~ m/\.page_/) {
1144: $frontmatter .= $begin_doc.$toc_line;
1145: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1146: } else {
1.381 albertel 1147: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1148: }
1149: }
1150: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1151: }
1152:
1.159 albertel 1153: my $status=$Apache::inputtags::status['-1'];
1154: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1155: $target eq 'tex') {
1.249 albertel 1156: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1157: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1158: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1159: &Apache::inputtags::grade;
1.324 albertel 1160: } elsif ($status eq 'NEEDS_CHECKIN') {
1161: # no need to grade, and don't want to hide data
1.249 albertel 1162: } else {
1163: # move any submission data to .hidden
1164: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1165: }
1.159 albertel 1166: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1167: $Apache::inputtags::part eq '0' &&
1.252 albertel 1168: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1169: # if part is zero, no <part>s existed, so we need show the current
1170: # grading status
1171: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1172: $result.= $gradestatus;
1173: }
1174: if (
1.284 albertel 1175: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1176: ($target eq 'answer') || ($target eq 'tex')
1177: ) {
1.227 albertel 1178: if ($target ne 'tex' &&
1.284 albertel 1179: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1180: $result.="</form>";
1.348 albertel 1181: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1182: }
1183: if ($target eq 'web') {
1.346 albertel 1184: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1185: } elsif ($target eq 'tex') {
1.178 sakharuk 1186: my $endminipage = '';
1.284 albertel 1187: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1188: $endminipage = '\end{minipage}';
1189: }
1.284 albertel 1190: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1191: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1192: } else {
1.262 sakharuk 1193: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1194: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1195: $result .= $endminipage.'\end{document} ';
1196: } else {
1.382 albertel 1197: $result .= $endminipage;
1.262 sakharuk 1198: }
1.159 albertel 1199: }
1200: }
1201: }
1202: if ($target eq 'grade') {
1203: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1204: &finalize_storage();
1205: }
1.284 albertel 1206: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1207: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1208: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1209: # normally we get it from above, but in CSTR
1.172 albertel 1210: # we always show answer mode too.
1.159 albertel 1211: }
1212: } elsif ($target eq 'meta') {
1213: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1214: @Apache::inputtags::response=();
1.159 albertel 1215: $result=&Apache::response::mandatory_part_meta;
1216: }
1.215 albertel 1217: $result.=&Apache::response::meta_part_order();
1.258 albertel 1218: $result.=&Apache::response::meta_response_order();
1.159 albertel 1219: } elsif ($target eq 'edit') {
1220: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1221: $result .= &problem_edit_footer();
1.320 albertel 1222: } elsif ($target eq 'modified') {
1223: $result .= $token->[2];
1.159 albertel 1224: }
1.155 albertel 1225:
1.284 albertel 1226: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1227: &Apache::inputtags::check_for_duplicate_ids();
1228: }
1.204 albertel 1229:
1230: &reset_problem_globals('problem');
1.159 albertel 1231:
1232: return $result;
1.48 albertel 1233: }
1234:
1.108 albertel 1235:
1.48 albertel 1236: sub start_library {
1.159 albertel 1237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1238: my ($result,$form_tag_start);
1.371 albertel 1239: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1240: &init_problem_globals('library');
1241: $Apache::lonhomework::type='problem';
1242: }
1.159 albertel 1243: if ($target eq 'edit') {
1.343 albertel 1244: ($result,$form_tag_start)=
1245: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1246: 'Edit');
1247: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1248: my $temp=&Apache::edit::insertlist($target,$token);
1249: $result.=$temp;
1250: } elsif ($target eq 'modified') {
1251: $result=$token->[4];
1.340 albertel 1252: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1253: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1254: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1255: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1256: ($result,$form_tag_start)=
1257: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1258: $name);
1.159 albertel 1259: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1260: $result.=" \n $form_tag_start".
1.159 albertel 1261: '<input type="hidden" name="submitted" value="yes" />';
1262: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1263: if ($Apache::lonhomework::type eq 'practice') {
1264: $result.= '<input type="submit" name="resetdata" '.
1265: 'value="'.&mt('New Problem Variation').'" />'.
1266: &practice_problem_header().'<hr />';
1267: }
1.159 albertel 1268: }
1269: return $result;
1.48 albertel 1270: }
1271:
1272: sub end_library {
1.159 albertel 1273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1274: my $result='';
1275: if ($target eq 'edit') {
1276: $result=&problem_edit_footer();
1.371 albertel 1277: } elsif ($target eq 'web'
1278: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1279: && $env{'request.state'} eq "construct") {
1.349 albertel 1280: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1281: }
1.371 albertel 1282: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1283: &reset_problem_globals('library');
1284: }
1.159 albertel 1285: return $result;
1.197 www 1286: }
1287:
1288: sub start_definetag {
1.326 albertel 1289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1290:
1291: my $result;
1292:
1293: my $name = $token->[2]->{'name'};
1.326 albertel 1294: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1295: if ($target eq 'web') {
1296: if ($name=~/^\//) {
1297: $result=
1298: '<br /><table class="LC_sty_end"><tr><th>'.
1299: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1300: } else {
1301: $result=
1302: '<br /><table class="LC_sty_begin"><tr><th>'.
1303: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1304: }
1305: $skip = &HTML::Entities::encode($skip, '<>&"');
1306: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1307: }
1308: return $result;
1309: }
1310:
1311: sub end_definetag {
1312: return '';
1.1 albertel 1313: }
1314:
1315: sub start_block {
1.201 albertel 1316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1317:
1318: my $result;
1.1 albertel 1319:
1.339 albertel 1320: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1321: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1322: my $code = $token->[2]->{'condition'};
1.385 albertel 1323: if (defined($code) && $code ne '') {
1.137 albertel 1324: if (!$Apache::lonxml::default_homework_loaded) {
1325: &Apache::lonxml::default_homework_load($safeeval);
1326: }
1.131 albertel 1327: $result = &Apache::run::run($code,$safeeval);
1328: &Apache::lonxml::debug("block :$code: returned :$result:");
1329: } else {
1330: $result='1';
1331: }
1332: if ( ! $result ) {
1.201 albertel 1333: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1334: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1335: }
1336: $result='';
1337: } elsif ($target eq 'edit') {
1338: $result .=&Apache::edit::tag_start($target,$token);
1339: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1340: $token,40);
1341: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1342: } elsif ($target eq 'modified') {
1343: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1344: $safeeval,'condition');
1345: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1346: }
1.131 albertel 1347: return $result;
1.1 albertel 1348: }
1349:
1350: sub end_block {
1.167 www 1351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1352: my $result;
1353: if ($target eq "edit") {
1354: $result.= &Apache::edit::tag_end($target,$token,'');
1355: }
1356: return $result;
1357: }
1358:
1359: sub start_languageblock {
1.201 albertel 1360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1361:
1362: my $result;
1363:
1.339 albertel 1364: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1365: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1366: my $include = $token->[2]->{'include'};
1367: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1368: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1369: # This should not even happen, since we should at least have the server language
1.398 www 1370: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1371: # Now loop over all languages in order of preference
1372: foreach my $preferred_language (@preferred_languages) {
1.394 www 1373: # If the languageblock has no arguments, show the contents
1.399 www 1374: $result=1;
1375: my $found=0;
1.394 www 1376: # Do we have an include argument?
1.398 www 1377: if ($include) {
1.394 www 1378: # If include is specified, by default, don't render the block
1.399 www 1379: $result=0;
1.398 www 1380: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1381: # ... but if my preferred language is included, render it
1.398 www 1382: if ($included_language eq $preferred_language) {
1.399 www 1383: $result=1;
1384: $found=1;
1.398 www 1385: }
1386: }
1387: }
1.394 www 1388: # Do we have an exclude argument?
1.398 www 1389: if ($exclude) {
1.399 www 1390: $result=1;
1.398 www 1391: foreach my $excluded_language (split(/\,/,$exclude)) {
1392: if ($excluded_language eq $preferred_language) {
1.399 www 1393: $result=0;
1394: $found=1;
1.398 www 1395: }
1396: }
1397: }
1.399 www 1398: if ($found) { last; }
1.398 www 1399: }
1.201 albertel 1400: if ( ! $result ) {
1401: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1402: $style);
1403: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1404: }
1405: $result='';
1.167 www 1406: } elsif ($target eq 'edit') {
1407: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1408: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1409: $token,40);
1.211 albertel 1410: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1411: $token,40);
1412: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1413: } elsif ($target eq 'modified') {
1414: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1415: $safeeval,'include',
1416: 'exclude');
1.167 www 1417: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1418: }
1419: return $result;
1420: }
1421:
1422: sub end_languageblock {
1.170 www 1423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1424: my $result;
1.201 albertel 1425: if ($target eq "edit") {
1.170 www 1426: $result.= &Apache::edit::tag_end($target,$token,'');
1427: }
1428: return $result;
1429: }
1430:
1.397 albertel 1431: {
1432: my %available_texts;
1433: sub start_translated {
1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1435: &Apache::lonxml::register('Apache::structuretags',('lang'));
1436: undef(%available_texts);
1437: }
1438:
1439: sub end_translated {
1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1441: my $result;
1442: #show the translation on viewable targets
1443: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1444: # or non-viewable targets, if it's embedded in something that
1445: # wants the output
1446: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1447: && &Apache::lonxml::in_redirection() ) ) {
1448: my @possibilities = keys(%available_texts);
1449: my $which =
1450: &Apache::loncommon::languages(\@possibilities) || 'default';
1451: $result = $available_texts{$which};
1452: }
1453: undef(%available_texts);
1454: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1455: return $result;
1456: }
1457:
1458:
1459: sub start_lang {
1460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1461: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1462: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1463: &Apache::lonxml::startredirection();
1464: }
1465: return '';
1466: }
1467:
1468: sub end_lang {
1469: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1470: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1471: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1472: my $result = &Apache::lonxml::endredirection();
1473: my $which = &Apache::lonxml::get_param('which',$parstack,
1474: $safeeval);
1.431 raeburn 1475: if ($which=~/\w/) {
1476: $available_texts{$which} = $result;
1477: }
1478: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1479: $safeeval);
1480: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1481: if ($language=~/\w/) {
1482: $available_texts{$language} = $result;
1483: }
1.427 bisitz 1484: }
1485:
1.397 albertel 1486: }
1487: return '';
1488: }
1489: }
1490:
1.170 www 1491: sub start_instructorcomment {
1.201 albertel 1492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1493:
1494: my $result;
1495:
1.339 albertel 1496: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1497: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1498: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1499: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1500: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1501: $parser,$style);
1.170 www 1502: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1503: }
1504: $result='';
1505: } elsif ($target eq 'edit') {
1506: $result .=&Apache::edit::tag_start($target,$token);
1507: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1508: }
1509: return $result;
1510: }
1511:
1512: sub end_instructorcomment {
1.159 albertel 1513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1514: my $result;
1515: if ($target eq "edit") {
1516: $result.= &Apache::edit::tag_end($target,$token,'');
1517: }
1518: return $result;
1.4 tsai 1519: }
1520:
1521: sub start_while {
1.326 albertel 1522: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1523:
1.160 albertel 1524: my $result;
1.339 albertel 1525: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1526: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1527: my $code = $token->[2]->{'condition'};
1.4 tsai 1528:
1.160 albertel 1529: push( @Apache::structuretags::whileconds, $code);
1530: if (!$Apache::lonxml::default_homework_loaded) {
1531: &Apache::lonxml::default_homework_load($safeeval);
1532: }
1533: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1534: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1535: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1536: push( @Apache::structuretags::whileline, $token->[5]);
1537: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1538: if ( $result ) {
1539: &Apache::lonxml::newparser($parser,\$bodytext);
1540: }
1541: } elsif ($target eq 'edit') {
1542: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1543: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1544: $token,40);
1545: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1546: } elsif ($target eq 'modified') {
1547: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1548: $safeeval,'condition');
1549: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1550: }
1.160 albertel 1551: return $result;
1.4 tsai 1552: }
1553:
1554: sub end_while {
1.159 albertel 1555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1556: my $result;
1557:
1.339 albertel 1558: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1559: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1560: my $code = pop(@Apache::structuretags::whileconds);
1561: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1562: my $line = pop(@Apache::structuretags::whileline);
1563: my $return = &Apache::run::run($code,$safeeval);
1564: my $starttime=time;
1565: my $error=0;
1566: while ($return) {
1567: if (time-$starttime >
1568: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1569: $return = 0; $error=1; next;
1.161 albertel 1570: }
1571: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1572: if ($target eq 'grade' || $target eq 'answer' ||
1573: $target eq 'analyze') {
1574: # grade/answer/analyze should produce no output but if we
1575: # are redirecting, the redirecter should know what to do
1576: # with the output
1577: if (!$Apache::lonxml::redirection) { undef($result); }
1578: }
1.161 albertel 1579: $return = &Apache::run::run($code,$safeeval);
1580: }
1581: if ($error) {
1.430 bisitz 1582: &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 1583: }
1584: } elsif ($target eq "edit") {
1585: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1586: }
1.160 albertel 1587: return $result;
1.1 albertel 1588: }
1.6 tsai 1589:
1.160 albertel 1590: # <randomlist show="1">
1.6 tsai 1591: # <tag1>..</tag1>
1592: # <tag2>..</tag2>
1593: # <tag3>..</tag3>
1.160 albertel 1594: # ...
1.6 tsai 1595: # </randomlist>
1596: sub start_randomlist {
1.326 albertel 1597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1598: my $result;
1.339 albertel 1599: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1600: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1601: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1602: my $b_parser= HTML::LCParser->new(\$body);
1603: $b_parser->xml_mode(1);
1604: $b_parser->marked_sections(1);
1.159 albertel 1605: my $b_tok;
1606: my @randomlist;
1607: my $list_item;
1608: while($b_tok = $b_parser->get_token() ) {
1609: if($b_tok->[0] eq 'S') { # start tag
1610: # get content of the tag until matching end tag
1611: # get all text upto the matching tag
1612: # and push the content into @randomlist
1613: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1614: $b_parser);
1615: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1616: push(@randomlist,$list_item);
1617: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1618: # $list_item</b>";
1619: }
1620: if($b_tok->[0] eq 'T') { # text
1621: # what to do with text in between tags?
1622: # print "<b>TEXT $b_tok->[1]</b><br />";
1623: }
1624: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1625: # print "<b>END-TAG $b_tok->[1]</b><br />";
1626: # }
1627: }
1.303 albertel 1628: if (@randomlist) {
1629: my @idx_arr = (0 .. $#randomlist);
1630: &Apache::structuretags::shuffle(\@idx_arr);
1631: my $bodytext = '';
1632: my $show=$#randomlist;
1633: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1634: $showarg--;
1635: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1636: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1637: my @currlist;
1638: my $part = $Apache::inputtags::part;
1639: if ($part ne '') {
1640: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1641: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1642: if (!(grep(/^\Q$part\E$/,@currlist))) {
1643: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1644: }
1645: } else {
1646: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1647: }
1648: }
1649: }
1.303 albertel 1650: for(0 .. $show) {
1651: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1652: }
1653: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1654: }
1655: } elsif ($target eq 'edit' ) {
1656: $result .=&Apache::edit::tag_start($target,$token);
1657: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1658: $token,5);
1659: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1660: } elsif ($target eq 'modified' ) {
1661: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1662: $safeeval,'show');
1663: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1664: }
1665: return $result;
1.7 tsai 1666: }
1667:
1668: sub shuffle {
1669: my $a=shift;
1670: my $i;
1.303 albertel 1671: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1672: &Apache::response::pushrandomnumber();
1.159 albertel 1673: for($i=@$a;--$i;) {
1674: my $j=int(&Math::Random::random_uniform() * ($i+1));
1675: next if $i == $j;
1676: @$a[$i,$j] = @$a[$j,$i];
1677: }
1.251 albertel 1678: &Apache::response::poprandomnumber();
1.7 tsai 1679: }
1.6 tsai 1680: }
1681:
1682: sub end_randomlist {
1.159 albertel 1683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1684: my $result;
1685: if ($target eq 'edit' ) {
1686: $result=&Apache::edit::tag_end($target,$token,
1687: 'End Randomly Parsed Block');
1688: }
1689: return $result;
1.6 tsai 1690: }
1691:
1.283 albertel 1692: sub ordered_show_check {
1693: my $last_part=$Apache::inputtags::partlist[-2];
1694: my $in_order=
1695: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1696: my $in_order_show=1;
1697: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1698: $in_order_show=&Apache::response::check_status($last_part);
1699: }
1700: return $in_order_show;
1701: }
1702:
1.11 albertel 1703: sub start_part {
1.326 albertel 1704: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1705: if (!$Apache::lonxml::metamode) {
1706: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1707: # duedates.
1708: }
1.159 albertel 1709: my $result='';
1.386 albertel 1710: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1711: $Apache::inputtags::part=$id;
1.177 albertel 1712: push(@Apache::inputtags::partlist,$id);
1713: @Apache::inputtags::response=();
1.159 albertel 1714: @Apache::inputtags::previous=();
1715: @Apache::inputtags::previous_version=();
1.405 albertel 1716: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1717: &Apache::response::reset_params();
1718:
1.159 albertel 1719: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1720: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1721: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1722: my $in_order_show=&ordered_show_check();
1.214 albertel 1723: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1724: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1725: &Apache::run::run($expression,$safeeval);
1.159 albertel 1726:
1727: if ($target eq 'meta') {
1.224 www 1728: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1729: return &Apache::response::mandatory_part_meta.
1730: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1731: } elsif ($target eq 'web' || $target eq 'grade' ||
1732: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1733: if ($hidden || !$in_order_show) {
1.326 albertel 1734: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1735: } else {
1736: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1737: push (@Apache::inputtags::status,$status);
1738: my $expression='$external::datestatus="'.$status.'";';
1739: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1740: &Apache::run::run($expression,$safeeval);
1.284 albertel 1741: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1742: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1743: }
1.216 albertel 1744: if (( $status eq 'CLOSED' ) ||
1745: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1746: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1747: ( $status eq 'BANNED') ||
1748: ( $status eq 'UNAVAILABLE') ||
1749: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1750: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1751: $style);
1.159 albertel 1752: if ( $target eq "web" ) {
1.211 albertel 1753: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1754: } elsif ( $target eq 'tex' ) {
1.284 albertel 1755: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1756: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1757: } else {
1.211 albertel 1758: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1759: }
1.159 albertel 1760: }
1761: } else {
1762: if ($target eq 'tex') {
1.284 albertel 1763: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1764: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1765: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1766: } else {
1767: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1768: }
1.195 sakharuk 1769: }
1.159 albertel 1770: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1771: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1772: my @allkeys = split /,/,$allkeys;
1773: my $allow_print_points = 0;
1774: foreach my $partial_key (@allkeys) {
1.230 albertel 1775: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1776: if ($1 ne '0') {$allow_print_points=1;}
1777: }
1778: }
1.275 albertel 1779: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1780: if (defined($maxtries) && $maxtries < 0) {
1781: $allow_print_points=0;
1782: }
1.302 albertel 1783: if (lc($env{'course.'.$env{'request.course.id'}.
1784: '.disableexampointprint'}) eq 'yes') {
1785: $allow_print_points=0;
1786: }
1.222 sakharuk 1787: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1788: } elsif ($target eq 'web') {
1.356 www 1789: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1790: }
1791: }
1792: }
1793: } elsif ($target eq 'edit') {
1794: $result.=&Apache::edit::tag_start($target,$token);
1795: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1796: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1797: ' '.
1798: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1799: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1800: } elsif ($target eq 'modified') {
1801: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1802: $safeeval,'id','display');
1.159 albertel 1803: if ($constructtag) {
1.225 albertel 1804: #limiting ids to only letters numbers, and space
1.224 www 1805: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1806: $result = &Apache::edit::rebuild_tag($token);
1807: }
1808: }
1809: return $result;
1.11 albertel 1810: }
1811:
1812: sub end_part {
1.159 albertel 1813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1814: &Apache::lonxml::debug("in end_part $target ");
1815: my $status=$Apache::inputtags::status['-1'];
1816: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1817: my $in_order_show=&ordered_show_check();
1.321 albertel 1818: my $result;
1819: if (!$Apache::lonxml::metamode) {
1820: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1821: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1822: }
1.312 albertel 1823: if ($target eq 'grade') {
1.249 albertel 1824: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1825: !$hidden && $in_order_show) {
1.311 foxr 1826: $result.=&Apache::inputtags::grade;
1.249 albertel 1827: } else {
1828: # move any submission data to .hidden
1829: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1830: }
1.283 albertel 1831: } elsif (($target eq 'web' || $target eq 'tex') &&
1832: !$hidden && $in_order_show) {
1.159 albertel 1833: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1834: $target);
1.212 albertel 1835: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1836: $gradestatus='';
1837: }
1.311 foxr 1838: $result.=$gradestatus;
1.265 sakharuk 1839: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1840: } elsif ($target eq 'edit') {
1.311 foxr 1841: $result.=&Apache::edit::end_table();
1.322 albertel 1842: } elsif ($target eq 'modified') {
1843: $result .= $token->[2];
1.159 albertel 1844: }
1845: pop @Apache::inputtags::status;
1846: $Apache::inputtags::part='';
1.295 albertel 1847: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1848: return $result;
1.11 albertel 1849: }
1.1 albertel 1850:
1.25 albertel 1851: sub start_preduedate {
1.326 albertel 1852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1853: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1854: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1855: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1856: if (!$Apache::lonhomework::scantronmode &&
1857: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1858: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1859: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1860: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1861: }
1.24 albertel 1862: }
1.159 albertel 1863: return '';
1.24 albertel 1864: }
1865:
1.25 albertel 1866: sub end_preduedate {
1.159 albertel 1867: return '';
1.24 albertel 1868: }
1869:
1.369 foxr 1870: # In all the modes where <postanswerdate> text is
1871: # displayable, all we do is eat up the text between the start/stop
1872: # tags if the conditions are not right to display it.
1.25 albertel 1873: sub start_postanswerdate {
1.326 albertel 1874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1875: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1876: &Apache::lonnet::allowed('pav',
1877: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1878: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1879: $target eq 'tex' ) {
1.300 albertel 1880: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1881: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1882: (($target eq 'tex') && !$pav)) {
1.326 albertel 1883: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1884: }
1885: }
1886: return '';
1.24 albertel 1887: }
1888:
1.25 albertel 1889: sub end_postanswerdate {
1.159 albertel 1890: return '';
1.24 albertel 1891: }
1892:
1.25 albertel 1893: sub start_notsolved {
1.326 albertel 1894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1895: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1896: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1897: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1898: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1899: if ($gradestatus =~ /^correct/ &&
1900: &Apache::response::show_answer()) {
1.159 albertel 1901: &Apache::lonxml::debug("skipping");
1.326 albertel 1902: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1903: }
1.24 albertel 1904: }
1.159 albertel 1905: return '';
1.24 albertel 1906: }
1907:
1.25 albertel 1908: sub end_notsolved {
1.159 albertel 1909: return '';
1.24 albertel 1910: }
1911:
1912: sub start_solved {
1.326 albertel 1913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1914: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1915: $target eq 'tex') {
1916: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1917: if ($gradestatus !~ /^correct/ ||
1918: !&Apache::response::show_answer()) {
1.326 albertel 1919: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1920: }
1.24 albertel 1921: }
1.159 albertel 1922: return '';
1.24 albertel 1923: }
1924:
1925: sub end_solved {
1.248 albertel 1926: return '';
1927: }
1928:
1929: sub start_problemtype {
1.326 albertel 1930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1931: my $result;
1.339 albertel 1932: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1933: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1934: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1935: if (!defined($mode)) { $mode='show'; }
1936: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1937: my $found=0;
1938: foreach my $type (split(',',$for)) {
1939: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1940: }
1941: if ($mode eq 'show' && !$found) {
1.326 albertel 1942: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1943: }
1944: if ($mode eq 'hide' && $found) {
1.326 albertel 1945: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1946: }
1947: } elsif ($target eq 'edit') {
1948: $result .=&Apache::edit::tag_start($target,$token);
1949: $result.=&Apache::edit::select_arg('Mode:','mode',
1950: [['show','Show'],
1951: ['hide','Hide']]
1952: ,$token);
1953: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1954: [ ['exam','Exam/Quiz Problem'],
1955: ['survey','Survey'],
1.428 raeburn 1956: ['problem','Homework Problem'],
1957: ['practice','Practice Problem'] ]
1.248 albertel 1958: ,$token);
1959: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1960: } elsif ($target eq 'modified') {
1961: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1962: $safeeval,'mode','for');
1963: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1964: }
1965: return $result;
1966: }
1967:
1968: sub end_problemtype {
1.159 albertel 1969: return '';
1.24 albertel 1970: }
1.34 albertel 1971:
1972: sub start_startouttext {
1.159 albertel 1973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1974: my @result=(''.'');
1975: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1976:
1977: my $nesting =
1978: &Apache::lonxml::set_state('outtext',
1979: &Apache::lonxml::get_state('outtext')+1);
1980: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1981: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1982: }
1.159 albertel 1983: return (@result);
1.34 albertel 1984: }
1.159 albertel 1985:
1.34 albertel 1986: sub end_startouttext {
1.326 albertel 1987: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1988: my $result='';
1989: my $text='';
1990: if ($target eq 'edit') {
1.424 foxr 1991: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1992: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1993: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1994: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1995: .&Apache::edit::deletelist($target,$token)
1996: .'</span></td>';
1.425 raeburn 1997: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1998: $result .= '<td align="left">'
1999: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2000: .'</td>'
2001: .'<td>'
2002: .&Apache::edit::insertlist($target,$token)
2003: .'</td>';
2004: }
1.425 raeburn 2005: $result.='<td align="right" valign="top">' .
1.434 foxr 2006: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2007: &Apache::edit::end_row().
1.362 albertel 2008: &Apache::edit::start_spanning_row()."\n".
1.255 www 2009: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2010: }
2011: if ($target eq 'modified') {
1.219 albertel 2012: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2013: }
2014: if ($target eq 'tex') {
2015: $result .= '\noindent ';
2016: }
2017: return $result;
1.34 albertel 2018: }
1.159 albertel 2019:
1.34 albertel 2020: sub start_endouttext {
1.159 albertel 2021: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2022: my $result='';
2023: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2024: if ($target eq "modified") {
2025: $result='<endouttext />'.
1.377 albertel 2026: &Apache::edit::handle_insertafter('startouttext');
2027: }
1.404 albertel 2028:
2029: my $nesting =
2030: &Apache::lonxml::set_state('outtext',
2031: &Apache::lonxml::get_state('outtext')-1);
2032: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2033: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2034: &Apache::lonxml::set_state('outtext', 0);
2035: }
1.159 albertel 2036: return $result;
1.34 albertel 2037: }
1.159 albertel 2038:
1.34 albertel 2039: sub end_endouttext {
1.159 albertel 2040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2041: my @result=('','');
2042: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2043: return (@result);
1.34 albertel 2044: }
1.159 albertel 2045:
1.45 albertel 2046: sub delete_startouttext {
1.326 albertel 2047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2048: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2049: my $text=$$parser['-1']->get_text("/endouttext");
2050: my $ntoken=$$parser['-1']->get_token();
2051: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2052: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2053: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2054: # they did the last time round
2055: &Apache::lonxml::increasedepth($ntoken);
2056: &Apache::lonxml::decreasedepth($ntoken);
2057: return 1;
1.193 www 2058: }
2059:
2060: sub start_simpleeditbutton {
2061: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2062: my $result='';
1.284 albertel 2063: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2064: ($target eq 'web') &&
1.330 albertel 2065: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2066: my $url=$env{'request.noversionuri'};
1.193 www 2067: $url=~s/\?.*$//;
1.367 albertel 2068: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2069: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2070: # $result='<p class="LC_warning">'
2071: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2072: # .&Apache::loncommon::help_open_topic('Caching')
2073: # .'</p>';
1.451 bisitz 2074: $result.=&Apache::lonhtmlcommon::start_funclist()
2075: .&Apache::lonhtmlcommon::add_item_funclist(
2076: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2077: .&mt('Edit').'</a>')
2078: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2079:
1.193 www 2080: }
2081: return $result;
2082: }
2083:
2084: sub end_simpleeditbutton {
2085: return '';
1.45 albertel 2086: }
1.34 albertel 2087:
1.428 raeburn 2088: sub practice_problem_header {
2089: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2090: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2091: '</span>';
2092: }
2093:
1.1 albertel 2094: 1;
2095: __END__
1.435 jms 2096:
2097: =pod
2098:
2099: =back
2100:
2101: =cut
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