Annotation of loncom/homework/structuretags.pm, revision 1.455
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.455 ! droeschl 4: # $Id: structuretags.pm,v 1.454 2009/07/06 17:10:10 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: });
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");
1.455 ! droeschl 262: $help="<hr/><p class='LC_info'>".&mt("Browsing resource, all submissions
! 263: are temporary.")."</p>";
1.344 albertel 264: $page_start .= $help;
1.159 albertel 265: }
1.344 albertel 266: }
267:
1.409 albertel 268: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 269: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 270: }
1.344 albertel 271:
1.159 albertel 272: my $form_tag_start;
273: if (!defined($found{'form'})) {
1.337 albertel 274: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.455 ! droeschl 275: my $uri = Apache::loncommon::inhibit_menu_check(
! 276: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.327 albertel 277: $form_tag_start.=$uri.'" ';
278: if ($target eq 'edit') {
279: $form_tag_start.=&Apache::edit::form_change_detection();
280: }
1.368 albertel 281: $form_tag_start.='>'."\n";
1.355 albertel 282:
283: my $symb=&Apache::lonnet::symbread();
284: if ($symb =~ /\S/) {
285: $symb=
286: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
287: $form_tag_start.=
1.368 albertel 288: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 289: }
1.159 albertel 290: }
1.343 albertel 291: return ($page_start,$form_tag_start);
1.105 albertel 292: }
293:
1.141 matthew 294: #use Time::HiRes();
1.105 albertel 295: sub get_resource_name {
1.159 albertel 296: my ($parstack,$safeeval)=@_;
1.388 foxr 297: my $name;
1.204 albertel 298: if (defined($Apache::lonhomework::name)) {
1.388 foxr 299: $name = $Apache::lonhomework::name;
300: } else {
301: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 302: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 303: if ($name eq '') {
304: $name=&Apache::lonnet::EXT('resource.title');
305: if ($name eq 'con_lost') { $name = ''; }
306: }
307: if ($name!~/\S+/) {
308: $name=$env{'request.uri'};
309: $name=~s-.*/([^/]+)$-$1-;
310: }
311: # The name has had html tags escaped:
312:
313: $name=~s/</</gs;
314: $name=~s/>/>/gs;
315:
316: $Apache::lonhomework::name=$name;
1.204 albertel 317: }
1.159 albertel 318: return $name;
1.105 albertel 319: }
320:
321: sub setup_rndseed {
1.159 albertel 322: my ($safeeval)=@_;
323: my $rndseed;
1.367 albertel 324: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 325: if ($env{'request.state'} eq "construct"
326: || $symb eq ''
327: || $Apache::lonhomework::type eq 'practice'
328: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 329: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 330: ['rndseed']);
1.284 albertel 331: $rndseed=$env{'form.rndseed'};
1.159 albertel 332: if (!$rndseed) {
1.162 albertel 333: $rndseed=$Apache::lonhomework::history{'rndseed'};
334: if (!$rndseed) {
335: $rndseed=time;
336: }
1.284 albertel 337: $env{'form.rndseed'}=$rndseed;
1.162 albertel 338: }
1.374 albertel 339: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
340: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 341: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 342: srand(time);
343: $rndseed=int(rand(2100000000));
1.284 albertel 344: $env{'form.rndseed'}=$rndseed;
345: delete($env{'form.resetdata'});
346: delete($env{'form.newrandomization'});
1.159 albertel 347: }
1.187 albertel 348: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 349: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 350: }
1.247 albertel 351: if ($Apache::lonhomework::history{'resource.CODE'}) {
352: $rndseed=&Apache::lonnet::rndseed();
353: }
1.221 albertel 354: if ($safeeval) {
355: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 356: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 357: }
1.159 albertel 358: }
359: return $rndseed;
1.105 albertel 360: }
361:
1.268 albertel 362: sub remember_problem_state {
363: return '
1.284 albertel 364: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
365: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
366: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 367: }
368:
1.423 www 369: sub problem_edit_buttons {
370: return '
1.408 albertel 371: <div class="LC_edit_problem_discards">
1.416 raeburn 372: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 373: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 374: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 375: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 376: </div>
377: <div class="LC_edit_problem_saves">
1.416 raeburn 378: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
379: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 380: </div>';
381: }
382:
383: sub problem_edit_header {
384: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
385: &Apache::structuretags::remember_problem_state().'
386: <div class="LC_edit_problem_header">
387: <div class="LC_edit_problem_header_title">
388: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
389: </div>'.
390: &problem_edit_buttons().'
1.453 bisitz 391: <hr />
1.409 albertel 392: '.&Apache::lonxml::message_location().'
1.408 albertel 393: </div>
394: '.
1.282 albertel 395: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 396: }
397:
398: sub problem_edit_footer {
1.412 albertel 399: return '</td></tr></table><br />
400: <div class="LC_edit_problem_footer">
1.453 bisitz 401: <hr />'.
1.423 www 402: &problem_edit_buttons().'
1.453 bisitz 403: <hr />
1.412 albertel 404: </div>
405: '.
406:
1.348 albertel 407: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 408: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 409: }
410:
1.235 albertel 411: sub option {
412: my ($value,$name) = @_;
413: my $result ="<option value='".$value."' ";
1.284 albertel 414: if ($env{'form.'.$name} eq $value) {
1.235 albertel 415: $result.=" selected='on' ";
416: }
417: $result.='>';
418: return $result;
419: }
420:
1.105 albertel 421: sub problem_web_to_edit_header {
1.159 albertel 422: my ($rndseed)=@_;
1.406 albertel 423: my $result .= '<div class="LC_edit_problem_header">';
424:
425: if (!$Apache::lonhomework::parsing_a_task) {
426: $result .=
427: '<div class="LC_edit_problem_header_title">'.
428: &mt('Problem Testing').
429: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
430: '</div>';
431: } else {
432: $result .=
433: '<div class="LC_edit_problem_header_title">'.
434: &mt('Task Testing').
435: '</div>';
436: }
437:
1.315 albertel 438: my $show_all_foils_text =
439: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 440: &mt('Show All Instances')
441: : &mt('Show All Foils');
1.315 albertel 442:
1.452 bisitz 443: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
444: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 445: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 446: $show_all.= ' /> '.$show_all_foils_text
447: .'</label></span>';
1.406 albertel 448:
449:
1.384 albertel 450:
1.406 albertel 451: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 452: if (!$Apache::lonhomework::parsing_a_task) {
453: $result.="
1.406 albertel 454: <div class='LC_edit_problem_header_row1'>
455: <span class=\"LC_nobreak\">
1.405 albertel 456: ".&mt("Problem Status:")."
1.235 albertel 457: <select name='problemstate'>
1.270 albertel 458: <option value=''></option>
1.235 albertel 459: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
460: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
461: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
462: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
463: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
464: </select>
1.406 albertel 465: </span>
466: <span class=\"LC_nobreak\">
1.405 albertel 467: ".&mt("Problem Type:")."
1.235 albertel 468: <select name='problemtype'>
1.270 albertel 469: <option value=''></option>
1.242 albertel 470: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 471: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 472: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 473: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 474: </select>
1.406 albertel 475: </span>
476: $show_all
477: </div>
478: <div class='LC_edit_problem_header_row2'>
479: <span class=\"LC_nobreak\">
1.405 albertel 480: ".&mt("Feedback Mode:")."
1.235 albertel 481: <select name='problemstatus'>
482: <option value=''></option>
1.242 albertel 483: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 484: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
485: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 486: </select>
1.406 albertel 487: </span>
488: ";
489:
1.376 albertel 490: } elsif ($Apache::lonhomework::parsing_a_task) {
491: $result.="
1.406 albertel 492: <div class='LC_edit_problem_header_row1'>
493: <span class=\"LC_nobreak\">
1.405 albertel 494: ".&mt("Problem Status:")."
1.376 albertel 495: <select name='problemstate'>
496: <option value=''></option>
497: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
498: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
499: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
500: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
501: </select>
1.406 albertel 502: </span>
503: $show_all
504: ";
505: }
506: $result.='
507: <span class="LC_nobreak">
508: '.&mt('Apply style file: ').'
509: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
510: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
511: </span>
1.422 www 512: </div>
513: <div class="LC_edit_problem_header_row1">'.
514: &Apache::lonxml::renderingoptions().'
1.406 albertel 515: </div>
516: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
517: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
518: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
519: </div>
1.453 bisitz 520: <hr />
1.406 albertel 521: <div class="LC_edit_problem_header_randomize_row">
522: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
523: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
524: <input type="text" name="rndseed" size="10" value="'.
525: $rndseed.'"
526: onchange="javascript:document.lonhomework.changerandseed.click()" />';
527:
528: if (!$Apache::lonhomework::parsing_a_task) {
529: my $numtoanalyze=$env{'form.numtoanalyze'};
530: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 531: $result .= '<span class="LC_nobreak">'.
532: &mt('[_1] for [_2] versions.',
1.416 raeburn 533: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 534: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
535: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 536: $numtoanalyze.'" size="5" />').
537: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
538: '</span>';
539:
1.313 albertel 540: }
1.406 albertel 541:
542: $result.='
543: </div>
1.453 bisitz 544: <hr />
1.447 bisitz 545: <div>';
1.416 raeburn 546: $result.='<input type="hidden" name="problemmode" value="view" />';
547: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
548: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
549: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
550: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 551: $result.='
552: </div>
1.453 bisitz 553: <hr />
1.409 albertel 554: '.&Apache::lonxml::message_location().'
1.406 albertel 555: </div>';
1.159 albertel 556: return $result;
1.48 albertel 557: }
558:
1.65 albertel 559: sub initialize_storage {
1.357 albertel 560: my ($given_symb) = @_;
1.353 albertel 561: undef(%Apache::lonhomework::results);
562: undef(%Apache::lonhomework::history);
1.357 albertel 563: my ($symb,$courseid,$domain,$name) =
1.367 albertel 564: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 565:
566: # anonymous users (CODEd exams) have no data
567: if ($name eq 'anonymous'
568: && !defined($domain)) {
569: return;
570: }
571:
1.333 albertel 572: if ($env{'request.state'} eq 'construct'
573: || $symb eq ''
574: || $Apache::lonhomework::type eq 'practice') {
575:
576: my $namespace = $symb || $env{'request.uri'};
577: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 578: ($env{'form.resetdata'} eq &mt('New Problem Variation')
579: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 580: $env{'form.newrandomization'} eq &mt('New Randomization')) {
581: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
582: &Apache::lonxml::debug("Attempt reset");
583: }
1.159 albertel 584: %Apache::lonhomework::history=
1.333 albertel 585: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 586: my ($temp)=keys %Apache::lonhomework::history ;
587: &Apache::lonxml::debug("Return message of $temp");
588: } else {
589: %Apache::lonhomework::history=
590: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
591: }
1.353 albertel 592:
1.159 albertel 593: #ignore error conditions
1.67 albertel 594: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 595: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 596: }
597:
1.435 jms 598: =pod
599:
600: =item finalize_storage()
601:
602: Stores away the result has to a student's environment
603: checks form.grade_ for specific values, other wises stores
604: to the running users environment
605: Will increment totals for attempts, students, and corrects
606: if running user has student role.
607:
608: =cut
609:
610:
1.65 albertel 611: sub finalize_storage {
1.357 albertel 612: my ($given_symb) = @_;
1.159 albertel 613: my $result;
1.289 albertel 614: if (%Apache::lonhomework::results) {
1.323 albertel 615: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
616: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 617: my ($symb,$courseid,$domain,$name) =
1.367 albertel 618: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 619: if ($env{'request.state'} eq 'construct'
620: || $symb eq ''
621: || $Apache::lonhomework::type eq 'practice') {
622: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 623: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 624: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 625: $namespace,'',$domain,$name);
1.159 albertel 626: &Apache::lonxml::debug('Construct Store return message:'.$result);
627: } else {
628: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
629: $symb,$courseid,$domain,$name);
630: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 631: if ($env{'request.role'} =~/^st/) {
632: &store_aggregates($symb,$courseid);
633: }
1.159 albertel 634: }
1.323 albertel 635: } else {
636: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 637: }
1.159 albertel 638: return $result;
1.65 albertel 639: }
640:
1.435 jms 641: =pod
642:
643: item store_aggregates()
644:
645: Sends hash of values to be incremented in nohist_resourcetracker.db
646: for the course. Increments total number of attempts, unique students
647: and corrects for each part for an instance of a problem, as appropriate.
648:
649: =cut
650:
1.285 raeburn 651: sub store_aggregates {
652: my ($symb,$courseid) = @_;
1.286 albertel 653: my %aggregate;
654: my @parts;
1.288 albertel 655: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
656: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 657: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 658: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 659: push(@parts, $1);
1.285 raeburn 660: }
661: }
1.286 albertel 662: foreach my $part (@parts) {
663: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
664: eq 'APPROX_ANS' ||
665: $Apache::lonhomework::results{'resource.'.$part.'.award'}
666: eq 'EXACT_ANS') {
1.287 albertel 667: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 668: }
1.286 albertel 669: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 670: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 671: } else {
1.293 albertel 672: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 673: if ($last_reset) {
1.293 albertel 674: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 675: $aggregate{$symb."\0".$part."\0users"} = 1;
676: }
677: }
1.285 raeburn 678: }
1.287 albertel 679: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 680: }
1.292 raeburn 681: if (keys (%aggregate) > 0) {
1.289 albertel 682: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 683: $cdomain,$cname);
684: }
685: }
1.289 albertel 686:
1.65 albertel 687: sub checkout_msg {
1.211 albertel 688: my %lt=&Apache::lonlocal::texthash(
689: 'resource'=>'The resource needs to be checked out',
690: '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.',
691: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
692: 'checkout'=>'Check out Exam for Viewing',
693: 'checkout?'=>'Check out Exam?');
1.352 albertel 694: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 695: return (<<ENDCHECKOUT);
1.211 albertel 696: <h2>$lt{'resource'}</h2>
697: <p>$lt{'id_expln'}</p>
1.449 bisitz 698: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 699: <form name="checkout" method="post" action="$uri">
1.91 albertel 700: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 701: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 702: </form>
703: ENDCHECKOUT
704: }
705:
1.252 albertel 706: sub firstaccess_msg {
1.253 albertel 707: my ($time,$symb)=@_;
1.414 albertel 708: my $result;
709: my @interval=&Apache::lonnet::EXT("resource.0.interval");
710: if ($interval[1] eq 'map') {
711: my ($map)=&Apache::lonnet::decode_symb($symb);
712: my $foldertitle=&Apache::lonnet::gettitle($map);
713:
714: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 715: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
716: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
717: ,$foldertitle,$time)."</h2>";
1.414 albertel 718: } elsif ($interval[1] eq 'course') {
719: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 720: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
721: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
722: ,$course,$time)."</h2>";
1.414 albertel 723: } else {
724: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 725: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
726: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
727: ,$title,$time)."</h2>";
1.414 albertel 728: }
1.352 albertel 729: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 730: my $buttontext = &mt('Show Resource');
731: my $timertext = &mt('Start Timer?');
1.414 albertel 732: $result .= (<<ENDCHECKOUT);
1.444 bisitz 733: <form name="markaccess" method="post" action="$uri">
1.252 albertel 734: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 735: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 736: </form>
737: ENDCHECKOUT
1.414 albertel 738: return $result;
1.252 albertel 739: }
740:
1.204 albertel 741: sub init_problem_globals {
742: my ($type)=@_;
743: #initialize globals
1.308 foxr 744: # For problems, we start out in part 0 (outside a <part> tag).
745: # and part 0 is used to describe the main body of the <problem>
746: #
1.204 albertel 747: if ($type eq 'problem') {
748: $Apache::inputtags::part='0';
749: @Apache::inputtags::partlist=('0');
1.405 albertel 750: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 751: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 752:
1.266 albertel 753: } elsif ($type eq 'library') {
1.204 albertel 754: $Apache::inputtags::part='';
755: @Apache::inputtags::partlist=();
1.405 albertel 756: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 757: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 758:
1.304 albertel 759: } elsif ($type eq 'Task') {
760: $Apache::inputtags::part='0';
761: @Apache::inputtags::partlist=('0');
1.405 albertel 762: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 763: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 764: }
765: @Apache::inputtags::responselist = ();
766: @Apache::inputtags::importlist = ();
767: @Apache::inputtags::previous=();
768: @Apache::inputtags::previous_version=();
769: $Apache::structuretags::printanswer='No';
770: @Apache::structuretags::whileconds=();
771: @Apache::structuretags::whilebody=();
772: @Apache::structuretags::whileline=();
773: $Apache::lonhomework::scantronmode=0;
774: undef($Apache::lonhomework::name);
1.358 albertel 775: undef($Apache::lonhomework::default_type);
776: undef($Apache::lonhomework::type);
1.204 albertel 777: }
778:
779: sub reset_problem_globals {
780: my ($type)=@_;
781: undef(%Apache::lonhomework::history);
782: undef(%Apache::lonhomework::results);
783: undef($Apache::inputtags::part);
1.208 albertel 784: #don't undef this, lonhomework.pm takes care of this, we use this to
785: #detect if we try to do 2 problems in one file
786: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 787: undef($Apache::lonhomework::name);
1.358 albertel 788: undef($Apache::lonhomework::default_type);
789: undef($Apache::lonhomework::type);
790: undef($Apache::lonhomework::scantronmode);
791: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 792: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 793: }
794:
1.241 albertel 795: sub set_problem_state {
1.240 albertel 796: my ($part)=@_;
1.284 albertel 797: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 798: $Apache::lonhomework::history{"resource.$part.solved"}=
799: 'correct_by_student';
800: }
801: }
802:
1.241 albertel 803: sub get_problem_status {
804: my ($part)=@_;
1.267 albertel 805: my $problem_status;
1.284 albertel 806: if ($env{'request.state'} eq 'construct' &&
807: defined($env{'form.problemstatus'})) {
808: $problem_status=$env{'form.problemstatus'};
1.267 albertel 809: } else {
810: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
811: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 812: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 813: }
814: return $problem_status;
815: }
816:
1.9 albertel 817: sub start_problem {
1.326 albertel 818: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 819:
1.311 foxr 820: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 821: if (!$Apache::lonxml::metamode) {
822: &Apache::lonxml::startredirection();
823: }
1.311 foxr 824:
1.308 foxr 825: # Problems don't nest and we don't allow more than one <problem> in
826: # a .problem file.
827: #
1.184 albertel 828: if ( $Apache::inputtags::part ne '' ||
829: $Apache::lonhomework::parsing_a_problem) {
830: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 831: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 832: return '';
833: }
1.184 albertel 834:
835: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 836: &init_problem_globals('problem');
1.166 albertel 837:
1.284 albertel 838: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 839: $Apache::lonhomework::scantronmode=1;
840: }
1.161 albertel 841:
1.159 albertel 842: if ($target ne 'analyze') {
1.415 raeburn 843: my $type = &Apache::lonnet::EXT('resource.0.type');
844: $Apache::lonhomework::type=$type;
1.284 albertel 845: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 846: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 847: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 848: }
1.332 albertel 849: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 850: }
1.164 albertel 851: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 852: my $uri=$env{'request.uri'};
1.159 albertel 853: if ($uri=~/\.(\w+)$/) {
854: $Apache::lonhomework::type=$1;
855: &Apache::lonxml::debug("Using type of $1");
856: } else {
857: $Apache::lonhomework::type='problem';
858: &Apache::lonxml::debug("Using default type, problem, :$uri:");
859: }
1.87 albertel 860: }
1.301 albertel 861: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 862:
1.363 albertel 863: &initialize_storage();
1.389 albertel 864: if ($target ne 'analyze'
865: && $env{'request.state'} eq 'construct') {
866: &set_problem_state('0');
867: }
868:
1.366 albertel 869: if ($target eq 'web') {
870: &Apache::lonxml::debug(" grading history ");
871: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
872: }
1.363 albertel 873:
1.159 albertel 874: #added vars to the scripting enviroment
1.213 albertel 875: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 876: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 877: &Apache::run::run($expression,$safeeval);
1.159 albertel 878: my $status;
879: my $accessmsg;
880:
1.343 albertel 881: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 882: my ($result,$form_tag_start);
1.354 albertel 883: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
884: || $target eq 'edit') {
1.350 albertel 885: ($result,$form_tag_start) =
886: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
887: $name);
888: }
889:
1.284 albertel 890: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 891:
892: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
893: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
894: $target eq 'tex') {
895: #handle exam checkout
896: if ($Apache::lonhomework::type eq 'exam') {
897: my $token=
898: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 899: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 900: $token=&Apache::lonxml::maketoken();
901: $Apache::lonhomework::history{"resource.0.outtoken"}=
902: $token;
903: }
1.343 albertel 904: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 905: }
1.284 albertel 906: if ($env{'form.markaccess'}) {
1.414 albertel 907: my @interval=&Apache::lonnet::EXT("resource.0.interval");
908: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 909: }
1.159 albertel 910: #handle rand seed in construction space
911: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 912: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 913: if ($env{'request.state'} ne "construct" &&
914: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 915: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
916: $rndseed.'" />'.
917: '<input type="submit" name="resetdata"
1.334 albertel 918: value="'.&mt('New Problem Variation').'" />';
919: if (exists($env{'form.username'})) {
920: $form_tag_start.=
1.164 albertel 921: '<input type="hidden" name="username"
1.284 albertel 922: value="'.$env{'form.username'}.'" />';
1.334 albertel 923: }
1.333 albertel 924: if ($env{'request.role.adv'}) {
1.267 albertel 925: $form_tag_start.=
1.440 bisitz 926: ' <label><input type="checkbox" name="showallfoils"';
1.284 albertel 927: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 928: $form_tag_start.=' checked="checked"';
1.267 albertel 929: }
1.300 albertel 930: $form_tag_start.= ' />'.&mt(' Show All Foils').
931: '</label>';
1.267 albertel 932: }
1.417 www 933: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 934: $form_tag_start.=&practice_problem_header();
1.417 www 935: }
1.267 albertel 936: $form_tag_start.='<hr />';
1.162 albertel 937: }
1.324 albertel 938:
939: ($status,$accessmsg,my $slot_name,my $slot) =
940: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 941: push (@Apache::inputtags::status,$status);
1.324 albertel 942:
1.159 albertel 943: my $expression='$external::datestatus="'.$status.'";';
944: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
945: &Apache::run::run($expression,$safeeval);
946: &Apache::lonxml::debug("Got $status");
1.324 albertel 947:
1.159 albertel 948: if (( $status eq 'CLOSED' ) ||
949: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 950: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 951: ( $status eq 'BANNED') ||
1.216 albertel 952: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 953: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 954: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 955: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
956: $style);
1.159 albertel 957: if ( $target eq "web" ) {
1.343 albertel 958: my $msg;
1.159 albertel 959: if ($status eq 'UNAVAILABLE') {
1.245 albertel 960: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 961: } elsif ($status eq 'NOT_IN_A_SLOT') {
962: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 963: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 964: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 965: }
1.216 albertel 966: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 967: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 968: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 969: $msg.=&checkout_msg();
1.252 albertel 970: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 971: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 972: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 973: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 974: }
975: $result.=$msg.'<br />';
976: } elsif ($target eq 'tex') {
1.332 albertel 977: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
978: : '\begin{minipage}{\textwidth}';
1.443 foxr 979: $result.='\noindent \vskip 1 mm '.
1.332 albertel 980: $startminipage.'\vskip 0 mm';
1.159 albertel 981: if ($status eq 'UNAVAILABLE') {
1.211 albertel 982: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 983: } else {
1.211 albertel 984: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 985: }
986: }
1.324 albertel 987: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 988: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
989: $style);
1.324 albertel 990: if ($target eq 'web') {
1.375 albertel 991: $result .=
992: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 993: } elsif ($target eq 'grade') {
994: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
995: 'problem');
996: }
1.159 albertel 997: } elsif ($target eq 'web') {
1.360 albertel 998: if ($status eq 'CAN_ANSWER'
999: && $slot_name ne ''
1000: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1001: # unproctored slot access, self checkin
1002: &Apache::bridgetask::check_in('problem',undef,undef,
1003: $slot_name);
1004: }
1.368 albertel 1005: $result.="\n $form_tag_start \t".
1.227 albertel 1006: '<input type="hidden" name="submitted" value="yes" />';
1007: # create a page header and exit
1.284 albertel 1008: if ($env{'request.state'} eq "construct") {
1009: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1010: if ($Apache::lonhomework::type eq 'practice') {
1011: $result.= '<input type="submit" name="resetdata" '.
1012: 'value="'.&mt('New Problem Variation').'" />'.
1013: &practice_problem_header().'<hr />';
1014: }
1.227 albertel 1015: }
1016: # if we are viewing someone else preserve that info
1.284 albertel 1017: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1018: foreach my $field ('symb','courseid','domain','username') {
1019: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1020: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1021: }
1022: }
1023: } elsif ($target eq 'tex') {
1.319 foxr 1024: $result .= 'INSERTTEXFRONTMATTERHERE';
1025:
1.99 sakharuk 1026: }
1.159 albertel 1027: } elsif ($target eq 'edit') {
1.343 albertel 1028: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1029: $Apache::lonxml::warnings_error_header=
1030: &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 1031: my $temp=&Apache::edit::insertlist($target,$token);
1032: $result.=$temp;
1033: } elsif ($target eq 'modified') {
1034: $result=$token->[4];
1035: } else {
1036: # page_start returned a starting result, delete it if we don't need it
1037: $result = '';
1.99 sakharuk 1038: }
1.159 albertel 1039: return $result;
1.9 albertel 1040: }
1041:
1042: sub end_problem {
1.159 albertel 1043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1044: my $result;
1.310 foxr 1045:
1.321 albertel 1046: if (!$Apache::lonxml::metamode) {
1047: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1048: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1049: }
1.319 foxr 1050:
1051: if ($target eq 'tex') {
1.321 albertel 1052: # Figure out the front matter and replace the
1053: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1054: # this in end_problem because whether or not we display due
1055: # dates depends on whether due dates have already been
1056: # displayed in the problem parts.
1057:
1.319 foxr 1058: my $frontmatter = '';
1059: my $startminipage = '';
1060: if (not $env{'form.problem_split'}=~/yes/) {
1061: $startminipage = '\begin{minipage}{\textwidth}';
1062: }
1063: my $id = $Apache::inputtags::part;
1064: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1065: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1066: my @packages = split /,/,$packages;
1067: my $allow_print_points = 0;
1068: foreach my $partial_key (@packages) {
1069: if ($partial_key=~m/^part_0$/) {
1070: $allow_print_points=1;
1071: }
1072: }
1073: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1074: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1075: if (lc($env{'course.'.$env{'request.course.id'}.
1076: '.disableexampointprint'}) eq 'yes') {
1077: $allow_print_points=0;
1078: }
1079: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1080: 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 1081: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1082: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1083:
1084: # Figure out what the due date is and if we need to print
1085: # it in the problem header. We have been logging the
1086: # last due date written to file.
1087:
1088: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1089: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1090: my $duedate_text = &mt('Due date: [_1]'
1091: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1092: my $temp_file;
1093: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1094:
1095: # Figure out what the last printed due date is or set it
1096: # to the epoch if no duedates have been printed.
1097:
1098: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1099: if (-e $filename) {
1100: $temp_file = Apache::File->new($filename);
1101: my @due_file = <$temp_file>;
1102: $due_file_content = $due_file[$#due_file];
1103: chomp $due_file_content;
1104: }
1105:
1106: # We display the due date iff it is not the same as the last
1107: # duedate in problem header ($due_file_content), and
1108: # none of our parts displayed a duedate.
1109: #
1110: my $parts_with_displayduedate;
1111: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1112: $parts_with_displayduedate =
1113: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1114: } else {
1115: $parts_with_displayduedate = 0;
1116: }
1117: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1118: $temp_file = Apache::File->new('>'.$filename);
1119: print $temp_file "$duetime\n";
1120: if (not $env{'request.symb'} =~ m/\.page_/) {
1121: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1122: $frontmatter .= $begin_doc.
1.448 bisitz 1123: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1124: } else {
1125: $frontmatter.= $begin_doc.$toc_line;
1126: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1127: }
1128: } else {
1.448 bisitz 1129: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1130: }
1131: } else {
1132: if (not $env{'request.symb'} =~ m/\.page_/) {
1133: $frontmatter .= $begin_doc.$toc_line;
1134: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1135: } else {
1.381 albertel 1136: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1137: }
1138: }
1139: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1140: }
1141:
1.159 albertel 1142: my $status=$Apache::inputtags::status['-1'];
1143: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1144: $target eq 'tex') {
1.249 albertel 1145: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1146: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1147: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1148: &Apache::inputtags::grade;
1.324 albertel 1149: } elsif ($status eq 'NEEDS_CHECKIN') {
1150: # no need to grade, and don't want to hide data
1.249 albertel 1151: } else {
1152: # move any submission data to .hidden
1153: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1154: }
1.159 albertel 1155: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1156: $Apache::inputtags::part eq '0' &&
1.252 albertel 1157: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1158: # if part is zero, no <part>s existed, so we need show the current
1159: # grading status
1160: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1161: $result.= $gradestatus;
1162: }
1163: if (
1.284 albertel 1164: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1165: ($target eq 'answer') || ($target eq 'tex')
1166: ) {
1.227 albertel 1167: if ($target ne 'tex' &&
1.284 albertel 1168: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1169: $result.="</form>";
1.348 albertel 1170: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1171: }
1172: if ($target eq 'web') {
1.346 albertel 1173: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1174: } elsif ($target eq 'tex') {
1.178 sakharuk 1175: my $endminipage = '';
1.284 albertel 1176: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1177: $endminipage = '\end{minipage}';
1178: }
1.284 albertel 1179: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1180: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1181: } else {
1.262 sakharuk 1182: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1183: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1184: $result .= $endminipage.'\end{document} ';
1185: } else {
1.382 albertel 1186: $result .= $endminipage;
1.262 sakharuk 1187: }
1.159 albertel 1188: }
1189: }
1190: }
1191: if ($target eq 'grade') {
1192: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1193: &finalize_storage();
1194: }
1.284 albertel 1195: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1196: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1197: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1198: # normally we get it from above, but in CSTR
1.172 albertel 1199: # we always show answer mode too.
1.159 albertel 1200: }
1201: } elsif ($target eq 'meta') {
1202: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1203: @Apache::inputtags::response=();
1.159 albertel 1204: $result=&Apache::response::mandatory_part_meta;
1205: }
1.215 albertel 1206: $result.=&Apache::response::meta_part_order();
1.258 albertel 1207: $result.=&Apache::response::meta_response_order();
1.159 albertel 1208: } elsif ($target eq 'edit') {
1209: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1210: $result .= &problem_edit_footer();
1.320 albertel 1211: } elsif ($target eq 'modified') {
1212: $result .= $token->[2];
1.159 albertel 1213: }
1.155 albertel 1214:
1.284 albertel 1215: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1216: &Apache::inputtags::check_for_duplicate_ids();
1217: }
1.204 albertel 1218:
1219: &reset_problem_globals('problem');
1.159 albertel 1220:
1221: return $result;
1.48 albertel 1222: }
1223:
1.108 albertel 1224:
1.48 albertel 1225: sub start_library {
1.159 albertel 1226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1227: my ($result,$form_tag_start);
1.371 albertel 1228: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1229: &init_problem_globals('library');
1230: $Apache::lonhomework::type='problem';
1231: }
1.159 albertel 1232: if ($target eq 'edit') {
1.343 albertel 1233: ($result,$form_tag_start)=
1234: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1235: 'Edit');
1236: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1237: my $temp=&Apache::edit::insertlist($target,$token);
1238: $result.=$temp;
1239: } elsif ($target eq 'modified') {
1240: $result=$token->[4];
1.340 albertel 1241: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1242: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1243: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1244: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1245: ($result,$form_tag_start)=
1246: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1247: $name);
1.159 albertel 1248: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1249: $result.=" \n $form_tag_start".
1.159 albertel 1250: '<input type="hidden" name="submitted" value="yes" />';
1251: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1252: if ($Apache::lonhomework::type eq 'practice') {
1253: $result.= '<input type="submit" name="resetdata" '.
1254: 'value="'.&mt('New Problem Variation').'" />'.
1255: &practice_problem_header().'<hr />';
1256: }
1.159 albertel 1257: }
1258: return $result;
1.48 albertel 1259: }
1260:
1261: sub end_library {
1.159 albertel 1262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1263: my $result='';
1264: if ($target eq 'edit') {
1265: $result=&problem_edit_footer();
1.371 albertel 1266: } elsif ($target eq 'web'
1267: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1268: && $env{'request.state'} eq "construct") {
1.349 albertel 1269: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1270: }
1.371 albertel 1271: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1272: &reset_problem_globals('library');
1273: }
1.159 albertel 1274: return $result;
1.197 www 1275: }
1276:
1277: sub start_definetag {
1.326 albertel 1278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1279:
1280: my $result;
1281:
1282: my $name = $token->[2]->{'name'};
1.326 albertel 1283: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1284: if ($target eq 'web') {
1285: if ($name=~/^\//) {
1286: $result=
1287: '<br /><table class="LC_sty_end"><tr><th>'.
1288: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1289: } else {
1290: $result=
1291: '<br /><table class="LC_sty_begin"><tr><th>'.
1292: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1293: }
1294: $skip = &HTML::Entities::encode($skip, '<>&"');
1295: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1296: }
1297: return $result;
1298: }
1299:
1300: sub end_definetag {
1301: return '';
1.1 albertel 1302: }
1303:
1304: sub start_block {
1.201 albertel 1305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1306:
1307: my $result;
1.1 albertel 1308:
1.339 albertel 1309: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1310: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1311: my $code = $token->[2]->{'condition'};
1.385 albertel 1312: if (defined($code) && $code ne '') {
1.137 albertel 1313: if (!$Apache::lonxml::default_homework_loaded) {
1314: &Apache::lonxml::default_homework_load($safeeval);
1315: }
1.131 albertel 1316: $result = &Apache::run::run($code,$safeeval);
1317: &Apache::lonxml::debug("block :$code: returned :$result:");
1318: } else {
1319: $result='1';
1320: }
1321: if ( ! $result ) {
1.201 albertel 1322: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1323: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1324: }
1325: $result='';
1326: } elsif ($target eq 'edit') {
1327: $result .=&Apache::edit::tag_start($target,$token);
1328: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1329: $token,40);
1330: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1331: } elsif ($target eq 'modified') {
1332: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1333: $safeeval,'condition');
1334: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1335: }
1.131 albertel 1336: return $result;
1.1 albertel 1337: }
1338:
1339: sub end_block {
1.167 www 1340: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1341: my $result;
1342: if ($target eq "edit") {
1343: $result.= &Apache::edit::tag_end($target,$token,'');
1344: }
1345: return $result;
1346: }
1347:
1348: sub start_languageblock {
1.201 albertel 1349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1350:
1351: my $result;
1352:
1.339 albertel 1353: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1354: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1355: my $include = $token->[2]->{'include'};
1356: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1357: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1358: # This should not even happen, since we should at least have the server language
1.398 www 1359: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1360: # Now loop over all languages in order of preference
1361: foreach my $preferred_language (@preferred_languages) {
1.394 www 1362: # If the languageblock has no arguments, show the contents
1.399 www 1363: $result=1;
1364: my $found=0;
1.394 www 1365: # Do we have an include argument?
1.398 www 1366: if ($include) {
1.394 www 1367: # If include is specified, by default, don't render the block
1.399 www 1368: $result=0;
1.398 www 1369: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1370: # ... but if my preferred language is included, render it
1.398 www 1371: if ($included_language eq $preferred_language) {
1.399 www 1372: $result=1;
1373: $found=1;
1.398 www 1374: }
1375: }
1376: }
1.394 www 1377: # Do we have an exclude argument?
1.398 www 1378: if ($exclude) {
1.399 www 1379: $result=1;
1.398 www 1380: foreach my $excluded_language (split(/\,/,$exclude)) {
1381: if ($excluded_language eq $preferred_language) {
1.399 www 1382: $result=0;
1383: $found=1;
1.398 www 1384: }
1385: }
1386: }
1.399 www 1387: if ($found) { last; }
1.398 www 1388: }
1.201 albertel 1389: if ( ! $result ) {
1390: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1391: $style);
1392: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1393: }
1394: $result='';
1.167 www 1395: } elsif ($target eq 'edit') {
1396: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1397: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1398: $token,40);
1.211 albertel 1399: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1400: $token,40);
1401: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1402: } elsif ($target eq 'modified') {
1403: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1404: $safeeval,'include',
1405: 'exclude');
1.167 www 1406: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1407: }
1408: return $result;
1409: }
1410:
1411: sub end_languageblock {
1.170 www 1412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1413: my $result;
1.201 albertel 1414: if ($target eq "edit") {
1.170 www 1415: $result.= &Apache::edit::tag_end($target,$token,'');
1416: }
1417: return $result;
1418: }
1419:
1.397 albertel 1420: {
1421: my %available_texts;
1422: sub start_translated {
1423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1424: &Apache::lonxml::register('Apache::structuretags',('lang'));
1425: undef(%available_texts);
1426: }
1427:
1428: sub end_translated {
1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1430: my $result;
1431: #show the translation on viewable targets
1432: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1433: # or non-viewable targets, if it's embedded in something that
1434: # wants the output
1435: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1436: && &Apache::lonxml::in_redirection() ) ) {
1437: my @possibilities = keys(%available_texts);
1438: my $which =
1439: &Apache::loncommon::languages(\@possibilities) || 'default';
1440: $result = $available_texts{$which};
1441: }
1442: undef(%available_texts);
1443: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1444: return $result;
1445: }
1446:
1447:
1448: sub start_lang {
1449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1450: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1451: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1452: &Apache::lonxml::startredirection();
1453: }
1454: return '';
1455: }
1456:
1457: sub end_lang {
1458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1459: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1460: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1461: my $result = &Apache::lonxml::endredirection();
1462: my $which = &Apache::lonxml::get_param('which',$parstack,
1463: $safeeval);
1.431 raeburn 1464: if ($which=~/\w/) {
1465: $available_texts{$which} = $result;
1466: }
1467: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1468: $safeeval);
1469: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1470: if ($language=~/\w/) {
1471: $available_texts{$language} = $result;
1472: }
1.427 bisitz 1473: }
1474:
1.397 albertel 1475: }
1476: return '';
1477: }
1478: }
1479:
1.170 www 1480: sub start_instructorcomment {
1.201 albertel 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1482:
1483: my $result;
1484:
1.339 albertel 1485: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1486: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1487: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1488: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1489: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1490: $parser,$style);
1.170 www 1491: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1492: }
1493: $result='';
1494: } elsif ($target eq 'edit') {
1495: $result .=&Apache::edit::tag_start($target,$token);
1496: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1497: }
1498: return $result;
1499: }
1500:
1501: sub end_instructorcomment {
1.159 albertel 1502: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1503: my $result;
1504: if ($target eq "edit") {
1505: $result.= &Apache::edit::tag_end($target,$token,'');
1506: }
1507: return $result;
1.4 tsai 1508: }
1509:
1510: sub start_while {
1.326 albertel 1511: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1512:
1.160 albertel 1513: my $result;
1.339 albertel 1514: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1515: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1516: my $code = $token->[2]->{'condition'};
1.4 tsai 1517:
1.160 albertel 1518: push( @Apache::structuretags::whileconds, $code);
1519: if (!$Apache::lonxml::default_homework_loaded) {
1520: &Apache::lonxml::default_homework_load($safeeval);
1521: }
1522: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1523: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1524: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1525: push( @Apache::structuretags::whileline, $token->[5]);
1526: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1527: if ( $result ) {
1528: &Apache::lonxml::newparser($parser,\$bodytext);
1529: }
1530: } elsif ($target eq 'edit') {
1531: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1532: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1533: $token,40);
1534: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1535: } elsif ($target eq 'modified') {
1536: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1537: $safeeval,'condition');
1538: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1539: }
1.160 albertel 1540: return $result;
1.4 tsai 1541: }
1542:
1543: sub end_while {
1.159 albertel 1544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1545: my $result;
1546:
1.339 albertel 1547: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1548: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1549: my $code = pop(@Apache::structuretags::whileconds);
1550: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1551: my $line = pop(@Apache::structuretags::whileline);
1552: my $return = &Apache::run::run($code,$safeeval);
1553: my $starttime=time;
1554: my $error=0;
1555: while ($return) {
1556: if (time-$starttime >
1557: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1558: $return = 0; $error=1; next;
1.161 albertel 1559: }
1560: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1561: if ($target eq 'grade' || $target eq 'answer' ||
1562: $target eq 'analyze') {
1563: # grade/answer/analyze should produce no output but if we
1564: # are redirecting, the redirecter should know what to do
1565: # with the output
1566: if (!$Apache::lonxml::redirection) { undef($result); }
1567: }
1.161 albertel 1568: $return = &Apache::run::run($code,$safeeval);
1569: }
1570: if ($error) {
1.430 bisitz 1571: &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 1572: }
1573: } elsif ($target eq "edit") {
1574: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1575: }
1.160 albertel 1576: return $result;
1.1 albertel 1577: }
1.6 tsai 1578:
1.160 albertel 1579: # <randomlist show="1">
1.6 tsai 1580: # <tag1>..</tag1>
1581: # <tag2>..</tag2>
1582: # <tag3>..</tag3>
1.160 albertel 1583: # ...
1.6 tsai 1584: # </randomlist>
1585: sub start_randomlist {
1.326 albertel 1586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1587: my $result;
1.339 albertel 1588: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1589: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1590: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1591: my $b_parser= HTML::LCParser->new(\$body);
1592: $b_parser->xml_mode(1);
1593: $b_parser->marked_sections(1);
1.159 albertel 1594: my $b_tok;
1595: my @randomlist;
1596: my $list_item;
1597: while($b_tok = $b_parser->get_token() ) {
1598: if($b_tok->[0] eq 'S') { # start tag
1599: # get content of the tag until matching end tag
1600: # get all text upto the matching tag
1601: # and push the content into @randomlist
1602: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1603: $b_parser);
1604: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1605: push(@randomlist,$list_item);
1606: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1607: # $list_item</b>";
1608: }
1609: if($b_tok->[0] eq 'T') { # text
1610: # what to do with text in between tags?
1611: # print "<b>TEXT $b_tok->[1]</b><br />";
1612: }
1613: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1614: # print "<b>END-TAG $b_tok->[1]</b><br />";
1615: # }
1616: }
1.303 albertel 1617: if (@randomlist) {
1618: my @idx_arr = (0 .. $#randomlist);
1619: &Apache::structuretags::shuffle(\@idx_arr);
1620: my $bodytext = '';
1621: my $show=$#randomlist;
1622: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1623: $showarg--;
1624: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1625: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1626: my @currlist;
1627: my $part = $Apache::inputtags::part;
1628: if ($part ne '') {
1629: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1630: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1631: if (!(grep(/^\Q$part\E$/,@currlist))) {
1632: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1633: }
1634: } else {
1635: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1636: }
1637: }
1638: }
1.303 albertel 1639: for(0 .. $show) {
1640: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1641: }
1642: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1643: }
1644: } elsif ($target eq 'edit' ) {
1645: $result .=&Apache::edit::tag_start($target,$token);
1646: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1647: $token,5);
1648: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1649: } elsif ($target eq 'modified' ) {
1650: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1651: $safeeval,'show');
1652: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1653: }
1654: return $result;
1.7 tsai 1655: }
1656:
1657: sub shuffle {
1658: my $a=shift;
1659: my $i;
1.303 albertel 1660: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1661: &Apache::response::pushrandomnumber();
1.159 albertel 1662: for($i=@$a;--$i;) {
1663: my $j=int(&Math::Random::random_uniform() * ($i+1));
1664: next if $i == $j;
1665: @$a[$i,$j] = @$a[$j,$i];
1666: }
1.251 albertel 1667: &Apache::response::poprandomnumber();
1.7 tsai 1668: }
1.6 tsai 1669: }
1670:
1671: sub end_randomlist {
1.159 albertel 1672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1673: my $result;
1674: if ($target eq 'edit' ) {
1675: $result=&Apache::edit::tag_end($target,$token,
1676: 'End Randomly Parsed Block');
1677: }
1678: return $result;
1.6 tsai 1679: }
1680:
1.283 albertel 1681: sub ordered_show_check {
1682: my $last_part=$Apache::inputtags::partlist[-2];
1683: my $in_order=
1684: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1685: my $in_order_show=1;
1686: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1687: $in_order_show=&Apache::response::check_status($last_part);
1688: }
1689: return $in_order_show;
1690: }
1691:
1.11 albertel 1692: sub start_part {
1.326 albertel 1693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1694: if (!$Apache::lonxml::metamode) {
1695: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1696: # duedates.
1697: }
1.159 albertel 1698: my $result='';
1.386 albertel 1699: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1700: $Apache::inputtags::part=$id;
1.177 albertel 1701: push(@Apache::inputtags::partlist,$id);
1702: @Apache::inputtags::response=();
1.159 albertel 1703: @Apache::inputtags::previous=();
1704: @Apache::inputtags::previous_version=();
1.405 albertel 1705: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1706: &Apache::response::reset_params();
1707:
1.159 albertel 1708: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1709: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1710: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1711: my $in_order_show=&ordered_show_check();
1.214 albertel 1712: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1713: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1714: &Apache::run::run($expression,$safeeval);
1.159 albertel 1715:
1716: if ($target eq 'meta') {
1.224 www 1717: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1718: return &Apache::response::mandatory_part_meta.
1719: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1720: } elsif ($target eq 'web' || $target eq 'grade' ||
1721: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1722: if ($hidden || !$in_order_show) {
1.326 albertel 1723: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1724: } else {
1725: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1726: push (@Apache::inputtags::status,$status);
1727: my $expression='$external::datestatus="'.$status.'";';
1728: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1729: &Apache::run::run($expression,$safeeval);
1.284 albertel 1730: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1731: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1732: }
1.216 albertel 1733: if (( $status eq 'CLOSED' ) ||
1734: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1735: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1736: ( $status eq 'BANNED') ||
1737: ( $status eq 'UNAVAILABLE') ||
1738: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1739: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1740: $style);
1.159 albertel 1741: if ( $target eq "web" ) {
1.211 albertel 1742: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1743: } elsif ( $target eq 'tex' ) {
1.284 albertel 1744: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1745: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1746: } else {
1.211 albertel 1747: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1748: }
1.159 albertel 1749: }
1750: } else {
1751: if ($target eq 'tex') {
1.284 albertel 1752: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1753: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1754: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1755: } else {
1756: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1757: }
1.195 sakharuk 1758: }
1.159 albertel 1759: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1760: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1761: my @allkeys = split /,/,$allkeys;
1762: my $allow_print_points = 0;
1763: foreach my $partial_key (@allkeys) {
1.230 albertel 1764: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1765: if ($1 ne '0') {$allow_print_points=1;}
1766: }
1767: }
1.275 albertel 1768: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1769: if (defined($maxtries) && $maxtries < 0) {
1770: $allow_print_points=0;
1771: }
1.302 albertel 1772: if (lc($env{'course.'.$env{'request.course.id'}.
1773: '.disableexampointprint'}) eq 'yes') {
1774: $allow_print_points=0;
1775: }
1.222 sakharuk 1776: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1777: } elsif ($target eq 'web') {
1.356 www 1778: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1779: }
1780: }
1781: }
1782: } elsif ($target eq 'edit') {
1783: $result.=&Apache::edit::tag_start($target,$token);
1784: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1785: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1786: ' '.
1787: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1788: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1789: } elsif ($target eq 'modified') {
1790: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1791: $safeeval,'id','display');
1.159 albertel 1792: if ($constructtag) {
1.225 albertel 1793: #limiting ids to only letters numbers, and space
1.224 www 1794: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1795: $result = &Apache::edit::rebuild_tag($token);
1796: }
1797: }
1798: return $result;
1.11 albertel 1799: }
1800:
1801: sub end_part {
1.159 albertel 1802: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1803: &Apache::lonxml::debug("in end_part $target ");
1804: my $status=$Apache::inputtags::status['-1'];
1805: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1806: my $in_order_show=&ordered_show_check();
1.321 albertel 1807: my $result;
1808: if (!$Apache::lonxml::metamode) {
1809: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1810: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1811: }
1.312 albertel 1812: if ($target eq 'grade') {
1.249 albertel 1813: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1814: !$hidden && $in_order_show) {
1.311 foxr 1815: $result.=&Apache::inputtags::grade;
1.249 albertel 1816: } else {
1817: # move any submission data to .hidden
1818: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1819: }
1.283 albertel 1820: } elsif (($target eq 'web' || $target eq 'tex') &&
1821: !$hidden && $in_order_show) {
1.159 albertel 1822: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1823: $target);
1.212 albertel 1824: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1825: $gradestatus='';
1826: }
1.311 foxr 1827: $result.=$gradestatus;
1.265 sakharuk 1828: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1829: } elsif ($target eq 'edit') {
1.311 foxr 1830: $result.=&Apache::edit::end_table();
1.322 albertel 1831: } elsif ($target eq 'modified') {
1832: $result .= $token->[2];
1.159 albertel 1833: }
1834: pop @Apache::inputtags::status;
1835: $Apache::inputtags::part='';
1.295 albertel 1836: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1837: return $result;
1.11 albertel 1838: }
1.1 albertel 1839:
1.25 albertel 1840: sub start_preduedate {
1.326 albertel 1841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1842: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1843: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1844: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1845: if (!$Apache::lonhomework::scantronmode &&
1846: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1847: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1848: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1849: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1850: }
1.24 albertel 1851: }
1.159 albertel 1852: return '';
1.24 albertel 1853: }
1854:
1.25 albertel 1855: sub end_preduedate {
1.159 albertel 1856: return '';
1.24 albertel 1857: }
1858:
1.369 foxr 1859: # In all the modes where <postanswerdate> text is
1860: # displayable, all we do is eat up the text between the start/stop
1861: # tags if the conditions are not right to display it.
1.25 albertel 1862: sub start_postanswerdate {
1.326 albertel 1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1864: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1865: &Apache::lonnet::allowed('pav',
1866: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1867: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1868: $target eq 'tex' ) {
1.300 albertel 1869: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1870: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1871: (($target eq 'tex') && !$pav)) {
1.326 albertel 1872: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1873: }
1874: }
1875: return '';
1.24 albertel 1876: }
1877:
1.25 albertel 1878: sub end_postanswerdate {
1.159 albertel 1879: return '';
1.24 albertel 1880: }
1881:
1.25 albertel 1882: sub start_notsolved {
1.326 albertel 1883: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1884: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1885: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1886: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1887: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1888: if ($gradestatus =~ /^correct/ &&
1889: &Apache::response::show_answer()) {
1.159 albertel 1890: &Apache::lonxml::debug("skipping");
1.326 albertel 1891: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1892: }
1.24 albertel 1893: }
1.159 albertel 1894: return '';
1.24 albertel 1895: }
1896:
1.25 albertel 1897: sub end_notsolved {
1.159 albertel 1898: return '';
1.24 albertel 1899: }
1900:
1901: sub start_solved {
1.326 albertel 1902: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1903: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1904: $target eq 'tex') {
1905: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1906: if ($gradestatus !~ /^correct/ ||
1907: !&Apache::response::show_answer()) {
1.326 albertel 1908: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1909: }
1.24 albertel 1910: }
1.159 albertel 1911: return '';
1.24 albertel 1912: }
1913:
1914: sub end_solved {
1.248 albertel 1915: return '';
1916: }
1917:
1918: sub start_problemtype {
1.326 albertel 1919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1920: my $result;
1.339 albertel 1921: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1922: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1923: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1924: if (!defined($mode)) { $mode='show'; }
1925: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1926: my $found=0;
1927: foreach my $type (split(',',$for)) {
1928: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1929: }
1930: if ($mode eq 'show' && !$found) {
1.326 albertel 1931: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1932: }
1933: if ($mode eq 'hide' && $found) {
1.326 albertel 1934: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1935: }
1936: } elsif ($target eq 'edit') {
1937: $result .=&Apache::edit::tag_start($target,$token);
1938: $result.=&Apache::edit::select_arg('Mode:','mode',
1939: [['show','Show'],
1940: ['hide','Hide']]
1941: ,$token);
1942: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1943: [ ['exam','Exam/Quiz Problem'],
1944: ['survey','Survey'],
1.428 raeburn 1945: ['problem','Homework Problem'],
1946: ['practice','Practice Problem'] ]
1.248 albertel 1947: ,$token);
1948: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1949: } elsif ($target eq 'modified') {
1950: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1951: $safeeval,'mode','for');
1952: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1953: }
1954: return $result;
1955: }
1956:
1957: sub end_problemtype {
1.159 albertel 1958: return '';
1.24 albertel 1959: }
1.34 albertel 1960:
1961: sub start_startouttext {
1.159 albertel 1962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1963: my @result=(''.'');
1964: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1965:
1966: my $nesting =
1967: &Apache::lonxml::set_state('outtext',
1968: &Apache::lonxml::get_state('outtext')+1);
1969: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1970: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1971: }
1.159 albertel 1972: return (@result);
1.34 albertel 1973: }
1.159 albertel 1974:
1.34 albertel 1975: sub end_startouttext {
1.326 albertel 1976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1977: my $result='';
1978: my $text='';
1979: if ($target eq 'edit') {
1.424 foxr 1980: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1981: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1982: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1983: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1984: .&Apache::edit::deletelist($target,$token)
1985: .'</span></td>';
1.425 raeburn 1986: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1987: $result .= '<td align="left">'
1988: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1989: .'</td>'
1990: .'<td>'
1991: .&Apache::edit::insertlist($target,$token)
1992: .'</td>';
1993: }
1.425 raeburn 1994: $result.='<td align="right" valign="top">' .
1.434 foxr 1995: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1996: &Apache::edit::end_row().
1.362 albertel 1997: &Apache::edit::start_spanning_row()."\n".
1.255 www 1998: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1999: }
2000: if ($target eq 'modified') {
1.219 albertel 2001: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2002: }
2003: if ($target eq 'tex') {
2004: $result .= '\noindent ';
2005: }
2006: return $result;
1.34 albertel 2007: }
1.159 albertel 2008:
1.34 albertel 2009: sub start_endouttext {
1.159 albertel 2010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2011: my $result='';
2012: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2013: if ($target eq "modified") {
2014: $result='<endouttext />'.
1.377 albertel 2015: &Apache::edit::handle_insertafter('startouttext');
2016: }
1.404 albertel 2017:
2018: my $nesting =
2019: &Apache::lonxml::set_state('outtext',
2020: &Apache::lonxml::get_state('outtext')-1);
2021: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2022: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2023: &Apache::lonxml::set_state('outtext', 0);
2024: }
1.159 albertel 2025: return $result;
1.34 albertel 2026: }
1.159 albertel 2027:
1.34 albertel 2028: sub end_endouttext {
1.159 albertel 2029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2030: my @result=('','');
2031: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2032: return (@result);
1.34 albertel 2033: }
1.159 albertel 2034:
1.45 albertel 2035: sub delete_startouttext {
1.326 albertel 2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2037: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2038: my $text=$$parser['-1']->get_text("/endouttext");
2039: my $ntoken=$$parser['-1']->get_token();
2040: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2041: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2042: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2043: # they did the last time round
2044: &Apache::lonxml::increasedepth($ntoken);
2045: &Apache::lonxml::decreasedepth($ntoken);
2046: return 1;
1.193 www 2047: }
2048:
2049: sub start_simpleeditbutton {
2050: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2051: my $result='';
1.284 albertel 2052: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2053: ($target eq 'web') &&
1.330 albertel 2054: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2055: my $url=$env{'request.noversionuri'};
1.193 www 2056: $url=~s/\?.*$//;
1.367 albertel 2057: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2058: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2059: # $result='<p class="LC_warning">'
2060: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2061: # .&Apache::loncommon::help_open_topic('Caching')
2062: # .'</p>';
1.451 bisitz 2063: $result.=&Apache::lonhtmlcommon::start_funclist()
2064: .&Apache::lonhtmlcommon::add_item_funclist(
2065: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2066: .&mt('Edit').'</a>')
2067: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2068:
1.193 www 2069: }
2070: return $result;
2071: }
2072:
2073: sub end_simpleeditbutton {
2074: return '';
1.45 albertel 2075: }
1.34 albertel 2076:
1.428 raeburn 2077: sub practice_problem_header {
2078: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2079: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2080: '</span>';
2081: }
2082:
1.1 albertel 2083: 1;
2084: __END__
1.435 jms 2085:
2086: =pod
2087:
2088: =back
2089:
2090: =cut
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