Annotation of loncom/homework/structuretags.pm, revision 1.466
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.466 ! droeschl 4: # $Id: structuretags.pm,v 1.465 2010/02/28 23:28:54 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 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') {
1.450 bisitz 212: # Breadcrumbs for Construction Space
213: &Apache::lonhtmlcommon::clear_breadcrumbs();
214: &Apache::lonhtmlcommon::add_breadcrumb({
215: 'text' => 'Construction Space',
216: 'href' => &Apache::loncommon::authorspace(),
217: });
1.460 droeschl 218: # breadcrumbs (and tools) will be created
219: # in start_page->bodytag->innerregister
220:
1.450 bisitz 221: # FIXME Where are we?
222: # &Apache::lonhtmlcommon::add_breadcrumb({
223: # 'text' => 'Problem Editing', # 'Problem Testing'
224: # 'href' => '',
225: # });
1.460 droeschl 226: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 227: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 228: }
1.272 albertel 229: } elsif (!defined($found{'body'})) {
1.343 albertel 230: my %add_entries;
1.159 albertel 231: my $background=&Apache::lonxml::get_param('background',$parstack,
232: $safeeval);
1.343 albertel 233: if ($background ne '' ) {
234: $add_entries{'background'} = $background;
235: }
1.344 albertel 236:
1.290 albertel 237: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
238: $safeeval);
1.446 bisitz 239: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 240:
1.446 bisitz 241: $body_args{'bgcolor'} = $bgcolor;
242: # $body_args{'no_title'} = 1;
243: $body_args{'force_register'} = 1;
244: $body_args{'add_entries'} = \%add_entries;
1.466 ! droeschl 245: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 246: $body_args{'only_body'} = 1;
247: }
1.344 albertel 248: }
1.365 albertel 249: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 250: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
251: \%body_args);
1.446 bisitz 252: $page_start .= $pageheader;
1.462 raeburn 253: if (!defined($found{'body'})
254: && $env{'request.state'} ne 'construct'
255: && ($target eq 'web' || $target eq 'webgrade')) {
256:
257: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
258: if ($symb eq '' && !$publicuser) {
259: $page_start .= '<p class="LC_info">'
260: .&mt('Browsing resource, all submissions are temporary.')
261: .'</p>';
1.457 bisitz 262: }
1.344 albertel 263: }
264:
1.409 albertel 265: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 266: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 267: }
1.344 albertel 268:
1.159 albertel 269: my $form_tag_start;
270: if (!defined($found{'form'})) {
1.337 albertel 271: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 272: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 273: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 274: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 275: $form_tag_start.=$uri.'" ';
276: if ($target eq 'edit') {
277: $form_tag_start.=&Apache::edit::form_change_detection();
278: }
1.368 albertel 279: $form_tag_start.='>'."\n";
1.355 albertel 280:
281: my $symb=&Apache::lonnet::symbread();
282: if ($symb =~ /\S/) {
283: $symb=
284: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
285: $form_tag_start.=
1.368 albertel 286: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 287: }
1.159 albertel 288: }
1.343 albertel 289: return ($page_start,$form_tag_start);
1.105 albertel 290: }
291:
1.141 matthew 292: #use Time::HiRes();
1.105 albertel 293: sub get_resource_name {
1.159 albertel 294: my ($parstack,$safeeval)=@_;
1.388 foxr 295: my $name;
1.204 albertel 296: if (defined($Apache::lonhomework::name)) {
1.388 foxr 297: $name = $Apache::lonhomework::name;
298: } else {
299: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 300: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 301: if ($name eq '') {
302: $name=&Apache::lonnet::EXT('resource.title');
303: if ($name eq 'con_lost') { $name = ''; }
304: }
305: if ($name!~/\S+/) {
306: $name=$env{'request.uri'};
307: $name=~s-.*/([^/]+)$-$1-;
308: }
309: # The name has had html tags escaped:
310:
311: $name=~s/</</gs;
312: $name=~s/>/>/gs;
313:
314: $Apache::lonhomework::name=$name;
1.204 albertel 315: }
1.159 albertel 316: return $name;
1.105 albertel 317: }
318:
319: sub setup_rndseed {
1.159 albertel 320: my ($safeeval)=@_;
321: my $rndseed;
1.367 albertel 322: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 323: if ($env{'request.state'} eq "construct"
324: || $symb eq ''
325: || $Apache::lonhomework::type eq 'practice'
326: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 327: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 328: ['rndseed']);
1.284 albertel 329: $rndseed=$env{'form.rndseed'};
1.159 albertel 330: if (!$rndseed) {
1.162 albertel 331: $rndseed=$Apache::lonhomework::history{'rndseed'};
332: if (!$rndseed) {
333: $rndseed=time;
334: }
1.284 albertel 335: $env{'form.rndseed'}=$rndseed;
1.162 albertel 336: }
1.374 albertel 337: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
338: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 339: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 340: srand(time);
341: $rndseed=int(rand(2100000000));
1.284 albertel 342: $env{'form.rndseed'}=$rndseed;
343: delete($env{'form.resetdata'});
344: delete($env{'form.newrandomization'});
1.159 albertel 345: }
1.187 albertel 346: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 347: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 348: }
1.247 albertel 349: if ($Apache::lonhomework::history{'resource.CODE'}) {
350: $rndseed=&Apache::lonnet::rndseed();
351: }
1.221 albertel 352: if ($safeeval) {
353: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 354: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 355: }
1.159 albertel 356: }
357: return $rndseed;
1.105 albertel 358: }
359:
1.268 albertel 360: sub remember_problem_state {
361: return '
1.284 albertel 362: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
363: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
364: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 365: }
366:
1.423 www 367: sub problem_edit_buttons {
368: return '
1.408 albertel 369: <div class="LC_edit_problem_discards">
1.416 raeburn 370: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 371: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 372: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 373: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 374: </div>
375: <div class="LC_edit_problem_saves">
1.416 raeburn 376: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
377: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 378: </div>';
379: }
380:
381: sub problem_edit_header {
382: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
383: &Apache::structuretags::remember_problem_state().'
384: <div class="LC_edit_problem_header">
385: <div class="LC_edit_problem_header_title">
386: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
387: </div>'.
388: &problem_edit_buttons().'
1.459 bisitz 389: <hr style="clear:both;" />
1.409 albertel 390: '.&Apache::lonxml::message_location().'
1.408 albertel 391: </div>
392: '.
1.458 bisitz 393: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 394: }
395:
396: sub problem_edit_footer {
1.412 albertel 397: return '</td></tr></table><br />
398: <div class="LC_edit_problem_footer">
1.453 bisitz 399: <hr />'.
1.423 www 400: &problem_edit_buttons().'
1.459 bisitz 401: <hr style="clear:both;" />
1.412 albertel 402: </div>
403: '.
404:
1.348 albertel 405: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 406: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 407: }
408:
1.235 albertel 409: sub option {
410: my ($value,$name) = @_;
411: my $result ="<option value='".$value."' ";
1.284 albertel 412: if ($env{'form.'.$name} eq $value) {
1.235 albertel 413: $result.=" selected='on' ";
414: }
415: $result.='>';
416: return $result;
417: }
418:
1.105 albertel 419: sub problem_web_to_edit_header {
1.159 albertel 420: my ($rndseed)=@_;
1.406 albertel 421: my $result .= '<div class="LC_edit_problem_header">';
422:
423: if (!$Apache::lonhomework::parsing_a_task) {
424: $result .=
425: '<div class="LC_edit_problem_header_title">'.
426: &mt('Problem Testing').
427: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
428: '</div>';
429: } else {
430: $result .=
431: '<div class="LC_edit_problem_header_title">'.
432: &mt('Task Testing').
433: '</div>';
434: }
435:
1.315 albertel 436: my $show_all_foils_text =
437: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 438: &mt('Show All Instances')
439: : &mt('Show All Foils');
1.315 albertel 440:
1.452 bisitz 441: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
442: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 443: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 444: $show_all.= ' /> '.$show_all_foils_text
445: .'</label></span>';
1.406 albertel 446:
447:
1.384 albertel 448:
1.406 albertel 449: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 450: if (!$Apache::lonhomework::parsing_a_task) {
451: $result.="
1.406 albertel 452: <div class='LC_edit_problem_header_row1'>
453: <span class=\"LC_nobreak\">
1.405 albertel 454: ".&mt("Problem Status:")."
1.235 albertel 455: <select name='problemstate'>
1.270 albertel 456: <option value=''></option>
1.235 albertel 457: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
458: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
459: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
460: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
461: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
462: </select>
1.406 albertel 463: </span>
464: <span class=\"LC_nobreak\">
1.405 albertel 465: ".&mt("Problem Type:")."
1.235 albertel 466: <select name='problemtype'>
1.270 albertel 467: <option value=''></option>
1.242 albertel 468: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 469: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 470: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 471: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
472: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
473: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 474: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 475: </select>
1.406 albertel 476: </span>
477: $show_all
478: </div>
479: <div class='LC_edit_problem_header_row2'>
480: <span class=\"LC_nobreak\">
1.405 albertel 481: ".&mt("Feedback Mode:")."
1.235 albertel 482: <select name='problemstatus'>
483: <option value=''></option>
1.242 albertel 484: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 485: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
486: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 487: </select>
1.406 albertel 488: </span>
489: ";
490:
1.376 albertel 491: } elsif ($Apache::lonhomework::parsing_a_task) {
492: $result.="
1.406 albertel 493: <div class='LC_edit_problem_header_row1'>
494: <span class=\"LC_nobreak\">
1.405 albertel 495: ".&mt("Problem Status:")."
1.376 albertel 496: <select name='problemstate'>
497: <option value=''></option>
498: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
499: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
500: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
501: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
502: </select>
1.406 albertel 503: </span>
504: $show_all
505: ";
506: }
507: $result.='
508: <span class="LC_nobreak">
509: '.&mt('Apply style file: ').'
510: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
511: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
512: </span>
1.422 www 513: </div>
514: <div class="LC_edit_problem_header_row1">'.
515: &Apache::lonxml::renderingoptions().'
1.406 albertel 516: </div>
517: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
518: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
519: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
520: </div>
1.453 bisitz 521: <hr />
1.406 albertel 522: <div class="LC_edit_problem_header_randomize_row">
523: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
524: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
525: <input type="text" name="rndseed" size="10" value="'.
526: $rndseed.'"
527: onchange="javascript:document.lonhomework.changerandseed.click()" />';
528:
529: if (!$Apache::lonhomework::parsing_a_task) {
530: my $numtoanalyze=$env{'form.numtoanalyze'};
531: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 532: $result .= '<span class="LC_nobreak">'.
533: &mt('[_1] for [_2] versions.',
1.416 raeburn 534: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 535: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
536: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 537: $numtoanalyze.'" size="5" />').
538: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
539: '</span>';
540:
1.313 albertel 541: }
1.406 albertel 542:
543: $result.='
544: </div>
1.453 bisitz 545: <hr />
1.447 bisitz 546: <div>';
1.416 raeburn 547: $result.='<input type="hidden" name="problemmode" value="view" />';
548: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
549: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
550: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
551: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 552: $result.='
553: </div>
1.453 bisitz 554: <hr />
1.409 albertel 555: '.&Apache::lonxml::message_location().'
1.406 albertel 556: </div>';
1.159 albertel 557: return $result;
1.48 albertel 558: }
559:
1.65 albertel 560: sub initialize_storage {
1.357 albertel 561: my ($given_symb) = @_;
1.353 albertel 562: undef(%Apache::lonhomework::results);
563: undef(%Apache::lonhomework::history);
1.357 albertel 564: my ($symb,$courseid,$domain,$name) =
1.367 albertel 565: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 566:
567: # anonymous users (CODEd exams) have no data
568: if ($name eq 'anonymous'
569: && !defined($domain)) {
570: return;
571: }
572:
1.333 albertel 573: if ($env{'request.state'} eq 'construct'
574: || $symb eq ''
575: || $Apache::lonhomework::type eq 'practice') {
576:
577: my $namespace = $symb || $env{'request.uri'};
578: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 579: ($env{'form.resetdata'} eq &mt('New Problem Variation')
580: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 581: $env{'form.newrandomization'} eq &mt('New Randomization')) {
582: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
583: &Apache::lonxml::debug("Attempt reset");
584: }
1.159 albertel 585: %Apache::lonhomework::history=
1.333 albertel 586: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 587: my ($temp)=keys %Apache::lonhomework::history ;
588: &Apache::lonxml::debug("Return message of $temp");
589: } else {
590: %Apache::lonhomework::history=
591: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
592: }
1.353 albertel 593:
1.159 albertel 594: #ignore error conditions
1.67 albertel 595: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 596: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 597: }
598:
1.435 jms 599: =pod
600:
601: =item finalize_storage()
602:
603: Stores away the result has to a student's environment
604: checks form.grade_ for specific values, other wises stores
605: to the running users environment
606: Will increment totals for attempts, students, and corrects
607: if running user has student role.
608:
609: =cut
610:
611:
1.65 albertel 612: sub finalize_storage {
1.357 albertel 613: my ($given_symb) = @_;
1.159 albertel 614: my $result;
1.289 albertel 615: if (%Apache::lonhomework::results) {
1.323 albertel 616: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
617: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 618: my ($symb,$courseid,$domain,$name) =
1.367 albertel 619: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 620: if ($env{'request.state'} eq 'construct'
621: || $symb eq ''
622: || $Apache::lonhomework::type eq 'practice') {
623: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 624: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 625: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 626: $namespace,'',$domain,$name);
1.159 albertel 627: &Apache::lonxml::debug('Construct Store return message:'.$result);
628: } else {
629: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
630: $symb,$courseid,$domain,$name);
631: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 632: if ($env{'request.role'} =~/^st/) {
633: &store_aggregates($symb,$courseid);
634: }
1.159 albertel 635: }
1.323 albertel 636: } else {
637: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 638: }
1.159 albertel 639: return $result;
1.65 albertel 640: }
641:
1.435 jms 642: =pod
643:
644: item store_aggregates()
645:
646: Sends hash of values to be incremented in nohist_resourcetracker.db
647: for the course. Increments total number of attempts, unique students
648: and corrects for each part for an instance of a problem, as appropriate.
649:
650: =cut
651:
1.285 raeburn 652: sub store_aggregates {
653: my ($symb,$courseid) = @_;
1.286 albertel 654: my %aggregate;
655: my @parts;
1.288 albertel 656: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
657: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 658: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 659: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 660: push(@parts, $1);
1.285 raeburn 661: }
662: }
1.286 albertel 663: foreach my $part (@parts) {
664: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
665: eq 'APPROX_ANS' ||
666: $Apache::lonhomework::results{'resource.'.$part.'.award'}
667: eq 'EXACT_ANS') {
1.287 albertel 668: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 669: }
1.286 albertel 670: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 671: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 672: } else {
1.293 albertel 673: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 674: if ($last_reset) {
1.293 albertel 675: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 676: $aggregate{$symb."\0".$part."\0users"} = 1;
677: }
678: }
1.285 raeburn 679: }
1.287 albertel 680: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 681: }
1.292 raeburn 682: if (keys (%aggregate) > 0) {
1.289 albertel 683: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 684: $cdomain,$cname);
685: }
686: }
1.289 albertel 687:
1.65 albertel 688: sub checkout_msg {
1.211 albertel 689: my %lt=&Apache::lonlocal::texthash(
690: 'resource'=>'The resource needs to be checked out',
691: '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.',
692: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
693: 'checkout'=>'Check out Exam for Viewing',
694: 'checkout?'=>'Check out Exam?');
1.352 albertel 695: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 696: return (<<ENDCHECKOUT);
1.211 albertel 697: <h2>$lt{'resource'}</h2>
698: <p>$lt{'id_expln'}</p>
1.449 bisitz 699: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 700: <form name="checkout" method="post" action="$uri">
1.91 albertel 701: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 702: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 703: </form>
704: ENDCHECKOUT
705: }
706:
1.252 albertel 707: sub firstaccess_msg {
1.253 albertel 708: my ($time,$symb)=@_;
1.414 albertel 709: my $result;
710: my @interval=&Apache::lonnet::EXT("resource.0.interval");
711: if ($interval[1] eq 'map') {
712: my ($map)=&Apache::lonnet::decode_symb($symb);
713: my $foldertitle=&Apache::lonnet::gettitle($map);
714:
715: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 716: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
717: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
718: ,$foldertitle,$time)."</h2>";
1.414 albertel 719: } elsif ($interval[1] eq 'course') {
720: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 721: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
722: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
723: ,$course,$time)."</h2>";
1.414 albertel 724: } else {
725: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 726: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
727: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
728: ,$title,$time)."</h2>";
1.414 albertel 729: }
1.352 albertel 730: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 731: my $buttontext = &mt('Show Resource');
732: my $timertext = &mt('Start Timer?');
1.414 albertel 733: $result .= (<<ENDCHECKOUT);
1.444 bisitz 734: <form name="markaccess" method="post" action="$uri">
1.252 albertel 735: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 736: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 737: </form>
738: ENDCHECKOUT
1.414 albertel 739: return $result;
1.252 albertel 740: }
741:
1.204 albertel 742: sub init_problem_globals {
743: my ($type)=@_;
744: #initialize globals
1.308 foxr 745: # For problems, we start out in part 0 (outside a <part> tag).
746: # and part 0 is used to describe the main body of the <problem>
747: #
1.204 albertel 748: if ($type eq 'problem') {
749: $Apache::inputtags::part='0';
750: @Apache::inputtags::partlist=('0');
1.405 albertel 751: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 752: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 753:
1.266 albertel 754: } elsif ($type eq 'library') {
1.204 albertel 755: $Apache::inputtags::part='';
756: @Apache::inputtags::partlist=();
1.405 albertel 757: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 758: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 759:
1.304 albertel 760: } elsif ($type eq 'Task') {
761: $Apache::inputtags::part='0';
762: @Apache::inputtags::partlist=('0');
1.405 albertel 763: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 764: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 765: }
766: @Apache::inputtags::responselist = ();
767: @Apache::inputtags::importlist = ();
768: @Apache::inputtags::previous=();
769: @Apache::inputtags::previous_version=();
770: $Apache::structuretags::printanswer='No';
771: @Apache::structuretags::whileconds=();
772: @Apache::structuretags::whilebody=();
773: @Apache::structuretags::whileline=();
774: $Apache::lonhomework::scantronmode=0;
775: undef($Apache::lonhomework::name);
1.358 albertel 776: undef($Apache::lonhomework::default_type);
777: undef($Apache::lonhomework::type);
1.204 albertel 778: }
779:
780: sub reset_problem_globals {
781: my ($type)=@_;
782: undef(%Apache::lonhomework::history);
783: undef(%Apache::lonhomework::results);
784: undef($Apache::inputtags::part);
1.208 albertel 785: #don't undef this, lonhomework.pm takes care of this, we use this to
786: #detect if we try to do 2 problems in one file
787: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 788: undef($Apache::lonhomework::name);
1.358 albertel 789: undef($Apache::lonhomework::default_type);
790: undef($Apache::lonhomework::type);
791: undef($Apache::lonhomework::scantronmode);
792: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 793: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 794: }
795:
1.241 albertel 796: sub set_problem_state {
1.240 albertel 797: my ($part)=@_;
1.284 albertel 798: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 799: $Apache::lonhomework::history{"resource.$part.solved"}=
800: 'correct_by_student';
801: }
802: }
803:
1.241 albertel 804: sub get_problem_status {
805: my ($part)=@_;
1.267 albertel 806: my $problem_status;
1.284 albertel 807: if ($env{'request.state'} eq 'construct' &&
808: defined($env{'form.problemstatus'})) {
809: $problem_status=$env{'form.problemstatus'};
1.267 albertel 810: } else {
811: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
812: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 813: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 814: }
815: return $problem_status;
816: }
817:
1.9 albertel 818: sub start_problem {
1.326 albertel 819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 820:
1.311 foxr 821: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 822: if (!$Apache::lonxml::metamode) {
823: &Apache::lonxml::startredirection();
824: }
1.311 foxr 825:
1.308 foxr 826: # Problems don't nest and we don't allow more than one <problem> in
827: # a .problem file.
828: #
1.184 albertel 829: if ( $Apache::inputtags::part ne '' ||
830: $Apache::lonhomework::parsing_a_problem) {
831: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 832: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 833: return '';
834: }
1.184 albertel 835:
836: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 837: &init_problem_globals('problem');
1.166 albertel 838:
1.284 albertel 839: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 840: $Apache::lonhomework::scantronmode=1;
841: }
1.161 albertel 842:
1.159 albertel 843: if ($target ne 'analyze') {
1.415 raeburn 844: my $type = &Apache::lonnet::EXT('resource.0.type');
845: $Apache::lonhomework::type=$type;
1.284 albertel 846: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 847: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 848: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 849: }
1.332 albertel 850: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 851: }
1.164 albertel 852: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 853: my $uri=$env{'request.uri'};
1.159 albertel 854: if ($uri=~/\.(\w+)$/) {
855: $Apache::lonhomework::type=$1;
856: &Apache::lonxml::debug("Using type of $1");
857: } else {
858: $Apache::lonhomework::type='problem';
859: &Apache::lonxml::debug("Using default type, problem, :$uri:");
860: }
1.87 albertel 861: }
1.301 albertel 862: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 863:
1.363 albertel 864: &initialize_storage();
1.389 albertel 865: if ($target ne 'analyze'
866: && $env{'request.state'} eq 'construct') {
867: &set_problem_state('0');
868: }
869:
1.366 albertel 870: if ($target eq 'web') {
871: &Apache::lonxml::debug(" grading history ");
872: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
873: }
1.363 albertel 874:
1.159 albertel 875: #added vars to the scripting enviroment
1.213 albertel 876: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 877: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 878: &Apache::run::run($expression,$safeeval);
1.159 albertel 879: my $status;
880: my $accessmsg;
881:
1.343 albertel 882: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 883: my ($result,$form_tag_start);
1.354 albertel 884: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
885: || $target eq 'edit') {
1.350 albertel 886: ($result,$form_tag_start) =
887: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
888: $name);
889: }
890:
1.284 albertel 891: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 892:
893: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
894: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
895: $target eq 'tex') {
896: #handle exam checkout
897: if ($Apache::lonhomework::type eq 'exam') {
898: my $token=
899: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 900: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 901: $token=&Apache::lonxml::maketoken();
902: $Apache::lonhomework::history{"resource.0.outtoken"}=
903: $token;
904: }
1.343 albertel 905: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 906: }
1.284 albertel 907: if ($env{'form.markaccess'}) {
1.414 albertel 908: my @interval=&Apache::lonnet::EXT("resource.0.interval");
909: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 910: }
1.159 albertel 911: #handle rand seed in construction space
912: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 913: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 914: if ($env{'request.state'} ne "construct" &&
915: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 916: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 917: $rndseed.'" />'.
918: '<input type="submit" name="resetdata"
919: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 920: if (exists($env{'form.username'})) {
921: $form_tag_start.=
1.164 albertel 922: '<input type="hidden" name="username"
1.284 albertel 923: value="'.$env{'form.username'}.'" />';
1.334 albertel 924: }
1.462 raeburn 925: if ($env{'request.role.adv'}) {
926: $form_tag_start.= ' <label class="LC_nobreak">'
927: .'<input type="checkbox" name="showallfoils"';
928: if (defined($env{'form.showallfoils'})) {
929: $form_tag_start.=' checked="checked"';
930: }
931: $form_tag_start.= ' /> '
932: .&mt('Show All Foils')
933: .'</label>';
934: }
1.417 www 935: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 936: $form_tag_start.=&practice_problem_header();
1.417 www 937: }
1.462 raeburn 938: $form_tag_start.='<hr />';
1.162 albertel 939: }
1.324 albertel 940:
941: ($status,$accessmsg,my $slot_name,my $slot) =
942: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 943: push (@Apache::inputtags::status,$status);
1.324 albertel 944:
1.159 albertel 945: my $expression='$external::datestatus="'.$status.'";';
946: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
947: &Apache::run::run($expression,$safeeval);
948: &Apache::lonxml::debug("Got $status");
1.324 albertel 949:
1.159 albertel 950: if (( $status eq 'CLOSED' ) ||
951: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 952: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 953: ( $status eq 'BANNED') ||
1.216 albertel 954: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 955: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 956: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 957: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
958: $style);
1.159 albertel 959: if ( $target eq "web" ) {
1.343 albertel 960: my $msg;
1.159 albertel 961: if ($status eq 'UNAVAILABLE') {
1.245 albertel 962: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 963: } elsif ($status eq 'NOT_IN_A_SLOT') {
964: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 965: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 966: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 967: }
1.216 albertel 968: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 969: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 970: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 971: $msg.=&checkout_msg();
1.252 albertel 972: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 973: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 974: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 975: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 976: }
977: $result.=$msg.'<br />';
978: } elsif ($target eq 'tex') {
1.332 albertel 979: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
980: : '\begin{minipage}{\textwidth}';
1.443 foxr 981: $result.='\noindent \vskip 1 mm '.
1.332 albertel 982: $startminipage.'\vskip 0 mm';
1.159 albertel 983: if ($status eq 'UNAVAILABLE') {
1.211 albertel 984: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 985: } else {
1.211 albertel 986: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 987: }
988: }
1.324 albertel 989: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 990: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
991: $style);
1.324 albertel 992: if ($target eq 'web') {
1.375 albertel 993: $result .=
994: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 995: } elsif ($target eq 'grade') {
996: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
997: 'problem');
998: }
1.159 albertel 999: } elsif ($target eq 'web') {
1.360 albertel 1000: if ($status eq 'CAN_ANSWER'
1001: && $slot_name ne ''
1002: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1003: # unproctored slot access, self checkin
1004: &Apache::bridgetask::check_in('problem',undef,undef,
1005: $slot_name);
1006: }
1.368 albertel 1007: $result.="\n $form_tag_start \t".
1.227 albertel 1008: '<input type="hidden" name="submitted" value="yes" />';
1009: # create a page header and exit
1.284 albertel 1010: if ($env{'request.state'} eq "construct") {
1011: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1012: if ($Apache::lonhomework::type eq 'practice') {
1013: $result.= '<input type="submit" name="resetdata" '.
1014: 'value="'.&mt('New Problem Variation').'" />'.
1015: &practice_problem_header().'<hr />';
1016: }
1.227 albertel 1017: }
1018: # if we are viewing someone else preserve that info
1.284 albertel 1019: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1020: foreach my $field ('symb','courseid','domain','username') {
1021: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1022: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1023: }
1024: }
1025: } elsif ($target eq 'tex') {
1.319 foxr 1026: $result .= 'INSERTTEXFRONTMATTERHERE';
1027:
1.99 sakharuk 1028: }
1.159 albertel 1029: } elsif ($target eq 'edit') {
1.343 albertel 1030: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1031: $Apache::lonxml::warnings_error_header=
1032: &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 1033: my $temp=&Apache::edit::insertlist($target,$token);
1034: $result.=$temp;
1035: } elsif ($target eq 'modified') {
1036: $result=$token->[4];
1037: } else {
1038: # page_start returned a starting result, delete it if we don't need it
1039: $result = '';
1.99 sakharuk 1040: }
1.159 albertel 1041: return $result;
1.9 albertel 1042: }
1043:
1044: sub end_problem {
1.159 albertel 1045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1046: my $result;
1.310 foxr 1047:
1.321 albertel 1048: if (!$Apache::lonxml::metamode) {
1049: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1050: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1051: }
1.319 foxr 1052:
1053: if ($target eq 'tex') {
1.321 albertel 1054: # Figure out the front matter and replace the
1055: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1056: # this in end_problem because whether or not we display due
1057: # dates depends on whether due dates have already been
1058: # displayed in the problem parts.
1059:
1.319 foxr 1060: my $frontmatter = '';
1061: my $startminipage = '';
1062: if (not $env{'form.problem_split'}=~/yes/) {
1063: $startminipage = '\begin{minipage}{\textwidth}';
1064: }
1065: my $id = $Apache::inputtags::part;
1066: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1067: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1068: my @packages = split /,/,$packages;
1069: my $allow_print_points = 0;
1070: foreach my $partial_key (@packages) {
1071: if ($partial_key=~m/^part_0$/) {
1072: $allow_print_points=1;
1073: }
1074: }
1075: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1076: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1077: if (lc($env{'course.'.$env{'request.course.id'}.
1078: '.disableexampointprint'}) eq 'yes') {
1079: $allow_print_points=0;
1080: }
1081: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1082: 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 1083: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1084: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1085:
1086: # Figure out what the due date is and if we need to print
1087: # it in the problem header. We have been logging the
1088: # last due date written to file.
1089:
1090: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1091: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1092: my $duedate_text = &mt('Due date: [_1]'
1093: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1094: my $temp_file;
1095: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1096:
1097: # Figure out what the last printed due date is or set it
1098: # to the epoch if no duedates have been printed.
1099:
1100: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1101: if (-e $filename) {
1102: $temp_file = Apache::File->new($filename);
1103: my @due_file = <$temp_file>;
1104: $due_file_content = $due_file[$#due_file];
1105: chomp $due_file_content;
1106: }
1107:
1108: # We display the due date iff it is not the same as the last
1109: # duedate in problem header ($due_file_content), and
1110: # none of our parts displayed a duedate.
1111: #
1112: my $parts_with_displayduedate;
1113: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1114: $parts_with_displayduedate =
1115: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1116: } else {
1117: $parts_with_displayduedate = 0;
1118: }
1119: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1120: $temp_file = Apache::File->new('>'.$filename);
1121: print $temp_file "$duetime\n";
1122: if (not $env{'request.symb'} =~ m/\.page_/) {
1123: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1124: $frontmatter .= $begin_doc.
1.448 bisitz 1125: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1126: } else {
1127: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1128: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1129: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1130: }
1.319 foxr 1131: }
1132: } else {
1.448 bisitz 1133: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1134: }
1135: } else {
1136: if (not $env{'request.symb'} =~ m/\.page_/) {
1137: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1138: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1139: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1140: }
1.319 foxr 1141: } else {
1.381 albertel 1142: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1143: }
1144: }
1145: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1146: }
1147:
1.159 albertel 1148: my $status=$Apache::inputtags::status['-1'];
1149: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1150: $target eq 'tex') {
1.249 albertel 1151: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1152: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1153: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1154: &Apache::inputtags::grade;
1.324 albertel 1155: } elsif ($status eq 'NEEDS_CHECKIN') {
1156: # no need to grade, and don't want to hide data
1.249 albertel 1157: } else {
1158: # move any submission data to .hidden
1159: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1160: }
1.159 albertel 1161: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1162: $Apache::inputtags::part eq '0' &&
1.252 albertel 1163: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1164: # if part is zero, no <part>s existed, so we need show the current
1165: # grading status
1166: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1167: $result.= $gradestatus;
1168: }
1169: if (
1.284 albertel 1170: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1171: ($target eq 'answer') || ($target eq 'tex')
1172: ) {
1.227 albertel 1173: if ($target ne 'tex' &&
1.284 albertel 1174: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1175: $result.="</form>";
1.348 albertel 1176: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1177: }
1178: if ($target eq 'web') {
1.346 albertel 1179: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1180: } elsif ($target eq 'tex') {
1.178 sakharuk 1181: my $endminipage = '';
1.284 albertel 1182: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1183: $endminipage = '\end{minipage}';
1184: }
1.284 albertel 1185: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1186: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1187: } else {
1.262 sakharuk 1188: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1189: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1190: $result .= $endminipage.'\end{document} ';
1191: } else {
1.382 albertel 1192: $result .= $endminipage;
1.262 sakharuk 1193: }
1.159 albertel 1194: }
1195: }
1196: }
1197: if ($target eq 'grade') {
1198: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1199: &finalize_storage();
1200: }
1.284 albertel 1201: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1202: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1203: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1204: # normally we get it from above, but in CSTR
1.172 albertel 1205: # we always show answer mode too.
1.159 albertel 1206: }
1207: } elsif ($target eq 'meta') {
1208: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1209: @Apache::inputtags::response=();
1.159 albertel 1210: $result=&Apache::response::mandatory_part_meta;
1211: }
1.215 albertel 1212: $result.=&Apache::response::meta_part_order();
1.258 albertel 1213: $result.=&Apache::response::meta_response_order();
1.159 albertel 1214: } elsif ($target eq 'edit') {
1215: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1216: $result .= &problem_edit_footer();
1.320 albertel 1217: } elsif ($target eq 'modified') {
1218: $result .= $token->[2];
1.159 albertel 1219: }
1.155 albertel 1220:
1.284 albertel 1221: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1222: &Apache::inputtags::check_for_duplicate_ids();
1223: }
1.204 albertel 1224:
1225: &reset_problem_globals('problem');
1.159 albertel 1226:
1227: return $result;
1.48 albertel 1228: }
1229:
1.108 albertel 1230:
1.48 albertel 1231: sub start_library {
1.159 albertel 1232: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1233: my ($result,$form_tag_start);
1.371 albertel 1234: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1235: &init_problem_globals('library');
1236: $Apache::lonhomework::type='problem';
1237: }
1.159 albertel 1238: if ($target eq 'edit') {
1.343 albertel 1239: ($result,$form_tag_start)=
1240: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1241: 'Edit');
1242: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1243: my $temp=&Apache::edit::insertlist($target,$token);
1244: $result.=$temp;
1245: } elsif ($target eq 'modified') {
1246: $result=$token->[4];
1.340 albertel 1247: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1248: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1249: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1250: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1251: ($result,$form_tag_start)=
1252: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1253: $name);
1.159 albertel 1254: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1255: $result.=" \n $form_tag_start".
1.159 albertel 1256: '<input type="hidden" name="submitted" value="yes" />';
1257: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1258: if ($Apache::lonhomework::type eq 'practice') {
1259: $result.= '<input type="submit" name="resetdata" '.
1260: 'value="'.&mt('New Problem Variation').'" />'.
1261: &practice_problem_header().'<hr />';
1262: }
1.159 albertel 1263: }
1264: return $result;
1.48 albertel 1265: }
1266:
1267: sub end_library {
1.159 albertel 1268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1269: my $result='';
1270: if ($target eq 'edit') {
1271: $result=&problem_edit_footer();
1.371 albertel 1272: } elsif ($target eq 'web'
1273: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1274: && $env{'request.state'} eq "construct") {
1.349 albertel 1275: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1276: }
1.371 albertel 1277: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1278: &reset_problem_globals('library');
1279: }
1.159 albertel 1280: return $result;
1.197 www 1281: }
1282:
1283: sub start_definetag {
1.326 albertel 1284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1285:
1286: my $result;
1287:
1288: my $name = $token->[2]->{'name'};
1.326 albertel 1289: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1290: if ($target eq 'web') {
1291: if ($name=~/^\//) {
1292: $result=
1293: '<br /><table class="LC_sty_end"><tr><th>'.
1294: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1295: } else {
1296: $result=
1297: '<br /><table class="LC_sty_begin"><tr><th>'.
1298: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1299: }
1300: $skip = &HTML::Entities::encode($skip, '<>&"');
1301: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1302: }
1303: return $result;
1304: }
1305:
1306: sub end_definetag {
1307: return '';
1.1 albertel 1308: }
1309:
1310: sub start_block {
1.201 albertel 1311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1312:
1313: my $result;
1.1 albertel 1314:
1.339 albertel 1315: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1316: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1317: my $code = $token->[2]->{'condition'};
1.385 albertel 1318: if (defined($code) && $code ne '') {
1.137 albertel 1319: if (!$Apache::lonxml::default_homework_loaded) {
1320: &Apache::lonxml::default_homework_load($safeeval);
1321: }
1.131 albertel 1322: $result = &Apache::run::run($code,$safeeval);
1323: &Apache::lonxml::debug("block :$code: returned :$result:");
1324: } else {
1325: $result='1';
1326: }
1327: if ( ! $result ) {
1.201 albertel 1328: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1329: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1330: }
1331: $result='';
1332: } elsif ($target eq 'edit') {
1333: $result .=&Apache::edit::tag_start($target,$token);
1334: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1335: $token,40);
1336: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1337: } elsif ($target eq 'modified') {
1338: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1339: $safeeval,'condition');
1340: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1341: }
1.131 albertel 1342: return $result;
1.1 albertel 1343: }
1344:
1345: sub end_block {
1.167 www 1346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1347: my $result;
1348: if ($target eq "edit") {
1349: $result.= &Apache::edit::tag_end($target,$token,'');
1350: }
1351: return $result;
1352: }
1353:
1354: sub start_languageblock {
1.201 albertel 1355: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1356:
1357: my $result;
1358:
1.339 albertel 1359: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1360: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1361: my $include = $token->[2]->{'include'};
1362: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1363: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1364: # This should not even happen, since we should at least have the server language
1.398 www 1365: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1366: # Now loop over all languages in order of preference
1367: foreach my $preferred_language (@preferred_languages) {
1.394 www 1368: # If the languageblock has no arguments, show the contents
1.399 www 1369: $result=1;
1370: my $found=0;
1.394 www 1371: # Do we have an include argument?
1.398 www 1372: if ($include) {
1.394 www 1373: # If include is specified, by default, don't render the block
1.399 www 1374: $result=0;
1.398 www 1375: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1376: # ... but if my preferred language is included, render it
1.398 www 1377: if ($included_language eq $preferred_language) {
1.399 www 1378: $result=1;
1379: $found=1;
1.398 www 1380: }
1381: }
1382: }
1.394 www 1383: # Do we have an exclude argument?
1.398 www 1384: if ($exclude) {
1.399 www 1385: $result=1;
1.398 www 1386: foreach my $excluded_language (split(/\,/,$exclude)) {
1387: if ($excluded_language eq $preferred_language) {
1.399 www 1388: $result=0;
1389: $found=1;
1.398 www 1390: }
1391: }
1392: }
1.399 www 1393: if ($found) { last; }
1.398 www 1394: }
1.201 albertel 1395: if ( ! $result ) {
1396: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1397: $style);
1398: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1399: }
1400: $result='';
1.167 www 1401: } elsif ($target eq 'edit') {
1402: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1403: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1404: $token,40);
1.211 albertel 1405: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1406: $token,40);
1407: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1408: } elsif ($target eq 'modified') {
1409: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1410: $safeeval,'include',
1411: 'exclude');
1.167 www 1412: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1413: }
1414: return $result;
1415: }
1416:
1417: sub end_languageblock {
1.170 www 1418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1419: my $result;
1.201 albertel 1420: if ($target eq "edit") {
1.170 www 1421: $result.= &Apache::edit::tag_end($target,$token,'');
1422: }
1423: return $result;
1424: }
1425:
1.397 albertel 1426: {
1427: my %available_texts;
1428: sub start_translated {
1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1430: &Apache::lonxml::register('Apache::structuretags',('lang'));
1431: undef(%available_texts);
1432: }
1433:
1434: sub end_translated {
1435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1436: my $result;
1437: #show the translation on viewable targets
1438: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1439: # or non-viewable targets, if it's embedded in something that
1440: # wants the output
1441: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1442: && &Apache::lonxml::in_redirection() ) ) {
1443: my @possibilities = keys(%available_texts);
1444: my $which =
1445: &Apache::loncommon::languages(\@possibilities) || 'default';
1446: $result = $available_texts{$which};
1447: }
1448: undef(%available_texts);
1449: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1450: return $result;
1451: }
1452:
1453:
1454: sub start_lang {
1455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1456: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1457: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1458: &Apache::lonxml::startredirection();
1459: }
1460: return '';
1461: }
1462:
1463: sub end_lang {
1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1465: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1466: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1467: my $result = &Apache::lonxml::endredirection();
1468: my $which = &Apache::lonxml::get_param('which',$parstack,
1469: $safeeval);
1.431 raeburn 1470: if ($which=~/\w/) {
1471: $available_texts{$which} = $result;
1472: }
1473: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1474: $safeeval);
1475: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1476: if ($language=~/\w/) {
1477: $available_texts{$language} = $result;
1478: }
1.427 bisitz 1479: }
1480:
1.397 albertel 1481: }
1482: return '';
1483: }
1484: }
1485:
1.170 www 1486: sub start_instructorcomment {
1.201 albertel 1487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1488:
1489: my $result;
1490:
1.339 albertel 1491: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1492: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1493: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1494: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1495: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1496: $parser,$style);
1.170 www 1497: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1498: }
1499: $result='';
1500: } elsif ($target eq 'edit') {
1501: $result .=&Apache::edit::tag_start($target,$token);
1502: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1503: }
1504: return $result;
1505: }
1506:
1507: sub end_instructorcomment {
1.159 albertel 1508: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1509: my $result;
1510: if ($target eq "edit") {
1511: $result.= &Apache::edit::tag_end($target,$token,'');
1512: }
1513: return $result;
1.4 tsai 1514: }
1515:
1516: sub start_while {
1.326 albertel 1517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1518:
1.160 albertel 1519: my $result;
1.339 albertel 1520: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1521: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1522: my $code = $token->[2]->{'condition'};
1.4 tsai 1523:
1.160 albertel 1524: push( @Apache::structuretags::whileconds, $code);
1525: if (!$Apache::lonxml::default_homework_loaded) {
1526: &Apache::lonxml::default_homework_load($safeeval);
1527: }
1528: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1529: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1530: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1531: push( @Apache::structuretags::whileline, $token->[5]);
1532: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1533: if ( $result ) {
1534: &Apache::lonxml::newparser($parser,\$bodytext);
1535: }
1536: } elsif ($target eq 'edit') {
1537: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1538: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1539: $token,40);
1540: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1541: } elsif ($target eq 'modified') {
1542: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1543: $safeeval,'condition');
1544: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1545: }
1.160 albertel 1546: return $result;
1.4 tsai 1547: }
1548:
1549: sub end_while {
1.159 albertel 1550: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1551: my $result;
1552:
1.339 albertel 1553: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1554: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1555: my $code = pop(@Apache::structuretags::whileconds);
1556: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1557: my $line = pop(@Apache::structuretags::whileline);
1558: my $return = &Apache::run::run($code,$safeeval);
1559: my $starttime=time;
1560: my $error=0;
1561: while ($return) {
1562: if (time-$starttime >
1563: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1564: $return = 0; $error=1; next;
1.161 albertel 1565: }
1566: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1567: if ($target eq 'grade' || $target eq 'answer' ||
1568: $target eq 'analyze') {
1569: # grade/answer/analyze should produce no output but if we
1570: # are redirecting, the redirecter should know what to do
1571: # with the output
1572: if (!$Apache::lonxml::redirection) { undef($result); }
1573: }
1.161 albertel 1574: $return = &Apache::run::run($code,$safeeval);
1575: }
1576: if ($error) {
1.430 bisitz 1577: &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 1578: }
1579: } elsif ($target eq "edit") {
1580: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1581: }
1.160 albertel 1582: return $result;
1.1 albertel 1583: }
1.6 tsai 1584:
1.160 albertel 1585: # <randomlist show="1">
1.6 tsai 1586: # <tag1>..</tag1>
1587: # <tag2>..</tag2>
1588: # <tag3>..</tag3>
1.160 albertel 1589: # ...
1.6 tsai 1590: # </randomlist>
1591: sub start_randomlist {
1.326 albertel 1592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1593: my $result;
1.339 albertel 1594: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1595: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1596: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1597: my $b_parser= HTML::LCParser->new(\$body);
1598: $b_parser->xml_mode(1);
1599: $b_parser->marked_sections(1);
1.159 albertel 1600: my $b_tok;
1601: my @randomlist;
1602: my $list_item;
1603: while($b_tok = $b_parser->get_token() ) {
1604: if($b_tok->[0] eq 'S') { # start tag
1605: # get content of the tag until matching end tag
1606: # get all text upto the matching tag
1607: # and push the content into @randomlist
1608: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1609: $b_parser);
1610: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1611: push(@randomlist,$list_item);
1612: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1613: # $list_item</b>";
1614: }
1615: if($b_tok->[0] eq 'T') { # text
1616: # what to do with text in between tags?
1617: # print "<b>TEXT $b_tok->[1]</b><br />";
1618: }
1619: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1620: # print "<b>END-TAG $b_tok->[1]</b><br />";
1621: # }
1622: }
1.303 albertel 1623: if (@randomlist) {
1624: my @idx_arr = (0 .. $#randomlist);
1625: &Apache::structuretags::shuffle(\@idx_arr);
1626: my $bodytext = '';
1627: my $show=$#randomlist;
1628: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1629: $showarg--;
1630: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1631: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1632: my @currlist;
1633: my $part = $Apache::inputtags::part;
1634: if ($part ne '') {
1635: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1636: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1637: if (!(grep(/^\Q$part\E$/,@currlist))) {
1638: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1639: }
1640: } else {
1641: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1642: }
1643: }
1644: }
1.303 albertel 1645: for(0 .. $show) {
1646: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1647: }
1648: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1649: }
1650: } elsif ($target eq 'edit' ) {
1651: $result .=&Apache::edit::tag_start($target,$token);
1652: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1653: $token,5);
1654: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1655: } elsif ($target eq 'modified' ) {
1656: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1657: $safeeval,'show');
1658: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1659: }
1660: return $result;
1.7 tsai 1661: }
1662:
1663: sub shuffle {
1664: my $a=shift;
1665: my $i;
1.303 albertel 1666: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1667: &Apache::response::pushrandomnumber();
1.159 albertel 1668: for($i=@$a;--$i;) {
1669: my $j=int(&Math::Random::random_uniform() * ($i+1));
1670: next if $i == $j;
1671: @$a[$i,$j] = @$a[$j,$i];
1672: }
1.251 albertel 1673: &Apache::response::poprandomnumber();
1.7 tsai 1674: }
1.6 tsai 1675: }
1676:
1677: sub end_randomlist {
1.159 albertel 1678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1679: my $result;
1680: if ($target eq 'edit' ) {
1681: $result=&Apache::edit::tag_end($target,$token,
1682: 'End Randomly Parsed Block');
1683: }
1684: return $result;
1.6 tsai 1685: }
1686:
1.283 albertel 1687: sub ordered_show_check {
1688: my $last_part=$Apache::inputtags::partlist[-2];
1689: my $in_order=
1690: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1691: my $in_order_show=1;
1692: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1693: $in_order_show=&Apache::response::check_status($last_part);
1694: }
1695: return $in_order_show;
1696: }
1697:
1.11 albertel 1698: sub start_part {
1.326 albertel 1699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1700: if (!$Apache::lonxml::metamode) {
1701: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1702: # duedates.
1703: }
1.159 albertel 1704: my $result='';
1.386 albertel 1705: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1706: $Apache::inputtags::part=$id;
1.177 albertel 1707: push(@Apache::inputtags::partlist,$id);
1708: @Apache::inputtags::response=();
1.159 albertel 1709: @Apache::inputtags::previous=();
1710: @Apache::inputtags::previous_version=();
1.405 albertel 1711: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1712: &Apache::response::reset_params();
1713:
1.159 albertel 1714: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1715: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1716: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1717: my $in_order_show=&ordered_show_check();
1.214 albertel 1718: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1719: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1720: &Apache::run::run($expression,$safeeval);
1.159 albertel 1721:
1722: if ($target eq 'meta') {
1.224 www 1723: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1724: return &Apache::response::mandatory_part_meta.
1725: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1726: } elsif ($target eq 'web' || $target eq 'grade' ||
1727: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1728: if ($hidden || !$in_order_show) {
1.326 albertel 1729: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1730: } else {
1731: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1732: push (@Apache::inputtags::status,$status);
1733: my $expression='$external::datestatus="'.$status.'";';
1734: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1735: &Apache::run::run($expression,$safeeval);
1.284 albertel 1736: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1737: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1738: }
1.216 albertel 1739: if (( $status eq 'CLOSED' ) ||
1740: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1741: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1742: ( $status eq 'BANNED') ||
1743: ( $status eq 'UNAVAILABLE') ||
1744: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1745: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1746: $style);
1.159 albertel 1747: if ( $target eq "web" ) {
1.211 albertel 1748: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1749: } elsif ( $target eq 'tex' ) {
1.284 albertel 1750: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1751: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1752: } else {
1.211 albertel 1753: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1754: }
1.159 albertel 1755: }
1756: } else {
1757: if ($target eq 'tex') {
1.284 albertel 1758: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1759: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1760: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1761: } else {
1762: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1763: }
1.195 sakharuk 1764: }
1.159 albertel 1765: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1766: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1767: my @allkeys = split /,/,$allkeys;
1768: my $allow_print_points = 0;
1769: foreach my $partial_key (@allkeys) {
1.230 albertel 1770: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1771: if ($1 ne '0') {$allow_print_points=1;}
1772: }
1773: }
1.275 albertel 1774: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1775: if (defined($maxtries) && $maxtries < 0) {
1776: $allow_print_points=0;
1777: }
1.302 albertel 1778: if (lc($env{'course.'.$env{'request.course.id'}.
1779: '.disableexampointprint'}) eq 'yes') {
1780: $allow_print_points=0;
1781: }
1.463 foxr 1782: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1783: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1784:
1785: }
1.233 www 1786: } elsif ($target eq 'web') {
1.356 www 1787: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1788: }
1789: }
1790: }
1791: } elsif ($target eq 'edit') {
1792: $result.=&Apache::edit::tag_start($target,$token);
1793: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1794: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1795: ' '.
1796: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1797: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1798: } elsif ($target eq 'modified') {
1799: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1800: $safeeval,'id','display');
1.159 albertel 1801: if ($constructtag) {
1.225 albertel 1802: #limiting ids to only letters numbers, and space
1.224 www 1803: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1804: $result = &Apache::edit::rebuild_tag($token);
1805: }
1806: }
1807: return $result;
1.11 albertel 1808: }
1809:
1810: sub end_part {
1.159 albertel 1811: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1812: &Apache::lonxml::debug("in end_part $target ");
1813: my $status=$Apache::inputtags::status['-1'];
1814: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1815: my $in_order_show=&ordered_show_check();
1.321 albertel 1816: my $result;
1817: if (!$Apache::lonxml::metamode) {
1818: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1819: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1820: }
1.312 albertel 1821: if ($target eq 'grade') {
1.249 albertel 1822: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1823: !$hidden && $in_order_show) {
1.311 foxr 1824: $result.=&Apache::inputtags::grade;
1.249 albertel 1825: } else {
1826: # move any submission data to .hidden
1827: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1828: }
1.283 albertel 1829: } elsif (($target eq 'web' || $target eq 'tex') &&
1830: !$hidden && $in_order_show) {
1.159 albertel 1831: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1832: $target);
1.212 albertel 1833: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1834: $gradestatus='';
1835: }
1.311 foxr 1836: $result.=$gradestatus;
1.265 sakharuk 1837: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1838: } elsif ($target eq 'edit') {
1.311 foxr 1839: $result.=&Apache::edit::end_table();
1.322 albertel 1840: } elsif ($target eq 'modified') {
1841: $result .= $token->[2];
1.159 albertel 1842: }
1843: pop @Apache::inputtags::status;
1844: $Apache::inputtags::part='';
1.295 albertel 1845: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1846: return $result;
1.11 albertel 1847: }
1.1 albertel 1848:
1.25 albertel 1849: sub start_preduedate {
1.326 albertel 1850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1851: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1852: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1853: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1854: if (!$Apache::lonhomework::scantronmode &&
1855: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1856: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1857: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1858: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1859: }
1.24 albertel 1860: }
1.159 albertel 1861: return '';
1.24 albertel 1862: }
1863:
1.25 albertel 1864: sub end_preduedate {
1.159 albertel 1865: return '';
1.24 albertel 1866: }
1867:
1.369 foxr 1868: # In all the modes where <postanswerdate> text is
1869: # displayable, all we do is eat up the text between the start/stop
1870: # tags if the conditions are not right to display it.
1.25 albertel 1871: sub start_postanswerdate {
1.326 albertel 1872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1873: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1874: &Apache::lonnet::allowed('pav',
1875: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1876: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1877: $target eq 'tex' ) {
1.300 albertel 1878: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1879: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1880: (($target eq 'tex') && !$pav)) {
1.326 albertel 1881: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1882: }
1883: }
1884: return '';
1.24 albertel 1885: }
1886:
1.25 albertel 1887: sub end_postanswerdate {
1.159 albertel 1888: return '';
1.24 albertel 1889: }
1890:
1.25 albertel 1891: sub start_notsolved {
1.326 albertel 1892: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1893: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1894: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1895: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1896: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1897: if ($gradestatus =~ /^correct/ &&
1898: &Apache::response::show_answer()) {
1.159 albertel 1899: &Apache::lonxml::debug("skipping");
1.326 albertel 1900: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1901: }
1.24 albertel 1902: }
1.159 albertel 1903: return '';
1.24 albertel 1904: }
1905:
1.25 albertel 1906: sub end_notsolved {
1.159 albertel 1907: return '';
1.24 albertel 1908: }
1909:
1910: sub start_solved {
1.326 albertel 1911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1912: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1913: $target eq 'tex') {
1914: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1915: if ($gradestatus !~ /^correct/ ||
1916: !&Apache::response::show_answer()) {
1.326 albertel 1917: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1918: }
1.24 albertel 1919: }
1.159 albertel 1920: return '';
1.24 albertel 1921: }
1922:
1923: sub end_solved {
1.248 albertel 1924: return '';
1925: }
1926:
1927: sub start_problemtype {
1.326 albertel 1928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1929: my $result;
1.339 albertel 1930: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1931: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1932: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1933: if (!defined($mode)) { $mode='show'; }
1934: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1935: my $found=0;
1936: foreach my $type (split(',',$for)) {
1937: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1938: }
1939: if ($mode eq 'show' && !$found) {
1.326 albertel 1940: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1941: }
1942: if ($mode eq 'hide' && $found) {
1.326 albertel 1943: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1944: }
1945: } elsif ($target eq 'edit') {
1946: $result .=&Apache::edit::tag_start($target,$token);
1947: $result.=&Apache::edit::select_arg('Mode:','mode',
1948: [['show','Show'],
1949: ['hide','Hide']]
1950: ,$token);
1951: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1952: [ ['exam','Exam/Quiz Problem'],
1953: ['survey','Survey'],
1.465 raeburn 1954: ['surveycred','Survey (with credit)'],
1955: ['anonsurvey','Anonymous Survey'],
1956: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 1957: ['problem','Homework Problem'],
1958: ['practice','Practice Problem'] ]
1.248 albertel 1959: ,$token);
1960: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1961: } elsif ($target eq 'modified') {
1962: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1963: $safeeval,'mode','for');
1964: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1965: }
1966: return $result;
1967: }
1968:
1969: sub end_problemtype {
1.159 albertel 1970: return '';
1.24 albertel 1971: }
1.34 albertel 1972:
1973: sub start_startouttext {
1.159 albertel 1974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1975: my @result=(''.'');
1976: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1977:
1978: my $nesting =
1979: &Apache::lonxml::set_state('outtext',
1980: &Apache::lonxml::get_state('outtext')+1);
1981: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1982: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1983: }
1.159 albertel 1984: return (@result);
1.34 albertel 1985: }
1.159 albertel 1986:
1.34 albertel 1987: sub end_startouttext {
1.326 albertel 1988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1989: my $result='';
1990: my $text='';
1991: if ($target eq 'edit') {
1.424 foxr 1992: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1993: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1994: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1995: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1996: .&Apache::edit::deletelist($target,$token)
1997: .'</span></td>';
1.425 raeburn 1998: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1999: $result .= '<td align="left">'
2000: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2001: .'</td>'
2002: .'<td>'
2003: .&Apache::edit::insertlist($target,$token)
2004: .'</td>';
2005: }
1.425 raeburn 2006: $result.='<td align="right" valign="top">' .
1.434 foxr 2007: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2008: &Apache::edit::end_row().
1.362 albertel 2009: &Apache::edit::start_spanning_row()."\n".
1.255 www 2010: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2011: }
2012: if ($target eq 'modified') {
1.219 albertel 2013: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2014: }
2015: if ($target eq 'tex') {
2016: $result .= '\noindent ';
2017: }
2018: return $result;
1.34 albertel 2019: }
1.159 albertel 2020:
1.34 albertel 2021: sub start_endouttext {
1.159 albertel 2022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2023: my $result='';
2024: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2025: if ($target eq "modified") {
2026: $result='<endouttext />'.
1.377 albertel 2027: &Apache::edit::handle_insertafter('startouttext');
2028: }
1.404 albertel 2029:
2030: my $nesting =
2031: &Apache::lonxml::set_state('outtext',
2032: &Apache::lonxml::get_state('outtext')-1);
2033: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2034: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2035: &Apache::lonxml::set_state('outtext', 0);
2036: }
1.159 albertel 2037: return $result;
1.34 albertel 2038: }
1.159 albertel 2039:
1.34 albertel 2040: sub end_endouttext {
1.159 albertel 2041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2042: my @result=('','');
2043: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2044: return (@result);
1.34 albertel 2045: }
1.159 albertel 2046:
1.45 albertel 2047: sub delete_startouttext {
1.326 albertel 2048: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2049: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2050: my $text=$$parser['-1']->get_text("/endouttext");
2051: my $ntoken=$$parser['-1']->get_token();
2052: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2053: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2054: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2055: # they did the last time round
2056: &Apache::lonxml::increasedepth($ntoken);
2057: &Apache::lonxml::decreasedepth($ntoken);
2058: return 1;
1.193 www 2059: }
2060:
2061: sub start_simpleeditbutton {
2062: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2063: my $result='';
1.284 albertel 2064: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2065: ($target eq 'web') &&
1.330 albertel 2066: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2067: my $url=$env{'request.noversionuri'};
1.193 www 2068: $url=~s/\?.*$//;
1.367 albertel 2069: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2070: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2071: # $result='<p class="LC_warning">'
2072: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2073: # .&Apache::loncommon::help_open_topic('Caching')
2074: # .'</p>';
1.451 bisitz 2075: $result.=&Apache::lonhtmlcommon::start_funclist()
2076: .&Apache::lonhtmlcommon::add_item_funclist(
2077: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2078: .&mt('Edit').'</a>')
2079: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2080:
1.193 www 2081: }
2082: return $result;
2083: }
2084:
2085: sub end_simpleeditbutton {
2086: return '';
1.45 albertel 2087: }
1.34 albertel 2088:
1.428 raeburn 2089: sub practice_problem_header {
2090: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2091: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2092: '</span>';
2093: }
2094:
1.1 albertel 2095: 1;
2096: __END__
1.435 jms 2097:
2098: =pod
2099:
2100: =back
2101:
2102: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework