Annotation of loncom/homework/structuretags.pm, revision 1.469
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.469 ! www 4: # $Id: structuretags.pm,v 1.468 2010/03/26 00:49:36 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.469 ! www 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.446 bisitz 206: my $pageheader = '';
1.344 albertel 207: if (defined($found{'body'})) {
208: $body_args{'skip_phases'}{'body'}=1;
209: } elsif (!defined($found{'body'})
210: && $env{'request.state'} eq 'construct') {
1.343 albertel 211: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 212: # Breadcrumbs for Construction Space
213: &Apache::lonhtmlcommon::clear_breadcrumbs();
214: &Apache::lonhtmlcommon::add_breadcrumb({
215: 'text' => 'Construction Space',
216: 'href' => &Apache::loncommon::authorspace(),
217: });
1.460 droeschl 218: # breadcrumbs (and tools) will be created
219: # in start_page->bodytag->innerregister
220:
1.450 bisitz 221: # FIXME Where are we?
222: # &Apache::lonhtmlcommon::add_breadcrumb({
223: # 'text' => 'Problem Editing', # 'Problem Testing'
224: # 'href' => '',
225: # });
1.460 droeschl 226: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 227: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 228: }
1.272 albertel 229: } elsif (!defined($found{'body'})) {
1.343 albertel 230: my %add_entries;
1.159 albertel 231: my $background=&Apache::lonxml::get_param('background',$parstack,
232: $safeeval);
1.343 albertel 233: if ($background ne '' ) {
234: $add_entries{'background'} = $background;
235: }
1.344 albertel 236:
1.290 albertel 237: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
238: $safeeval);
1.446 bisitz 239: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 240:
1.446 bisitz 241: $body_args{'bgcolor'} = $bgcolor;
242: # $body_args{'no_title'} = 1;
243: $body_args{'force_register'} = 1;
244: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 245: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 246: $body_args{'only_body'} = 1;
247: }
1.344 albertel 248: }
1.365 albertel 249: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 250: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
251: \%body_args);
1.446 bisitz 252: $page_start .= $pageheader;
1.462 raeburn 253: if (!defined($found{'body'})
254: && $env{'request.state'} ne 'construct'
255: && ($target eq 'web' || $target eq 'webgrade')) {
256:
257: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
258: if ($symb eq '' && !$publicuser) {
259: $page_start .= '<p class="LC_info">'
260: .&mt('Browsing resource, all submissions are temporary.')
261: .'</p>';
1.457 bisitz 262: }
1.344 albertel 263: }
264:
1.409 albertel 265: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 266: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 267: }
1.344 albertel 268:
1.159 albertel 269: my $form_tag_start;
270: if (!defined($found{'form'})) {
1.337 albertel 271: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 272: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 273: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 274: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 275: $form_tag_start.=$uri.'" ';
276: if ($target eq 'edit') {
277: $form_tag_start.=&Apache::edit::form_change_detection();
278: }
1.368 albertel 279: $form_tag_start.='>'."\n";
1.355 albertel 280:
281: my $symb=&Apache::lonnet::symbread();
282: if ($symb =~ /\S/) {
283: $symb=
284: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
285: $form_tag_start.=
1.368 albertel 286: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 287: }
1.159 albertel 288: }
1.343 albertel 289: return ($page_start,$form_tag_start);
1.105 albertel 290: }
291:
1.141 matthew 292: #use Time::HiRes();
1.105 albertel 293: sub get_resource_name {
1.159 albertel 294: my ($parstack,$safeeval)=@_;
1.388 foxr 295: my $name;
1.204 albertel 296: if (defined($Apache::lonhomework::name)) {
1.388 foxr 297: $name = $Apache::lonhomework::name;
298: } else {
299: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 300: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 301: if ($name eq '') {
302: $name=&Apache::lonnet::EXT('resource.title');
303: if ($name eq 'con_lost') { $name = ''; }
304: }
305: if ($name!~/\S+/) {
306: $name=$env{'request.uri'};
307: $name=~s-.*/([^/]+)$-$1-;
308: }
309: # The name has had html tags escaped:
310:
311: $name=~s/</</gs;
312: $name=~s/>/>/gs;
313:
314: $Apache::lonhomework::name=$name;
1.204 albertel 315: }
1.159 albertel 316: return $name;
1.105 albertel 317: }
318:
319: sub setup_rndseed {
1.159 albertel 320: my ($safeeval)=@_;
321: my $rndseed;
1.367 albertel 322: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 323: if ($env{'request.state'} eq "construct"
324: || $symb eq ''
325: || $Apache::lonhomework::type eq 'practice'
326: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 327: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 328: ['rndseed']);
1.284 albertel 329: $rndseed=$env{'form.rndseed'};
1.159 albertel 330: if (!$rndseed) {
1.162 albertel 331: $rndseed=$Apache::lonhomework::history{'rndseed'};
332: if (!$rndseed) {
333: $rndseed=time;
334: }
1.284 albertel 335: $env{'form.rndseed'}=$rndseed;
1.162 albertel 336: }
1.374 albertel 337: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
338: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 339: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 340: srand(time);
341: $rndseed=int(rand(2100000000));
1.284 albertel 342: $env{'form.rndseed'}=$rndseed;
343: delete($env{'form.resetdata'});
344: delete($env{'form.newrandomization'});
1.159 albertel 345: }
1.187 albertel 346: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 347: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 348: }
1.247 albertel 349: if ($Apache::lonhomework::history{'resource.CODE'}) {
350: $rndseed=&Apache::lonnet::rndseed();
351: }
1.221 albertel 352: if ($safeeval) {
353: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 354: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 355: }
1.159 albertel 356: }
357: return $rndseed;
1.105 albertel 358: }
359:
1.268 albertel 360: sub remember_problem_state {
361: return '
1.284 albertel 362: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
363: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
364: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 365: }
366:
1.423 www 367: sub problem_edit_buttons {
368: return '
1.408 albertel 369: <div class="LC_edit_problem_discards">
1.416 raeburn 370: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 371: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 372: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 373: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 374: </div>
375: <div class="LC_edit_problem_saves">
1.416 raeburn 376: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
377: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 378: </div>';
379: }
380:
381: sub problem_edit_header {
382: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
383: &Apache::structuretags::remember_problem_state().'
384: <div class="LC_edit_problem_header">
385: <div class="LC_edit_problem_header_title">
386: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
387: </div>'.
388: &problem_edit_buttons().'
1.459 bisitz 389: <hr style="clear:both;" />
1.409 albertel 390: '.&Apache::lonxml::message_location().'
1.408 albertel 391: </div>
392: '.
1.458 bisitz 393: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 394: }
395:
396: sub problem_edit_footer {
1.412 albertel 397: return '</td></tr></table><br />
398: <div class="LC_edit_problem_footer">
1.453 bisitz 399: <hr />'.
1.423 www 400: &problem_edit_buttons().'
1.459 bisitz 401: <hr style="clear:both;" />
1.412 albertel 402: </div>
403: '.
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: $target eq 'tex') {
1.284 albertel 896: if ($env{'form.markaccess'}) {
1.414 albertel 897: my @interval=&Apache::lonnet::EXT("resource.0.interval");
898: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 899: }
1.159 albertel 900: #handle rand seed in construction space
901: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 902: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 903: if ($env{'request.state'} ne "construct" &&
904: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 905: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 906: $rndseed.'" />'.
907: '<input type="submit" name="resetdata"
908: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 909: if (exists($env{'form.username'})) {
910: $form_tag_start.=
1.164 albertel 911: '<input type="hidden" name="username"
1.284 albertel 912: value="'.$env{'form.username'}.'" />';
1.334 albertel 913: }
1.462 raeburn 914: if ($env{'request.role.adv'}) {
915: $form_tag_start.= ' <label class="LC_nobreak">'
916: .'<input type="checkbox" name="showallfoils"';
917: if (defined($env{'form.showallfoils'})) {
918: $form_tag_start.=' checked="checked"';
919: }
920: $form_tag_start.= ' /> '
921: .&mt('Show All Foils')
922: .'</label>';
923: }
1.417 www 924: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 925: $form_tag_start.=&practice_problem_header();
1.417 www 926: }
1.462 raeburn 927: $form_tag_start.='<hr />';
1.162 albertel 928: }
1.324 albertel 929:
930: ($status,$accessmsg,my $slot_name,my $slot) =
931: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 932: push (@Apache::inputtags::status,$status);
1.324 albertel 933:
1.159 albertel 934: my $expression='$external::datestatus="'.$status.'";';
935: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
936: &Apache::run::run($expression,$safeeval);
937: &Apache::lonxml::debug("Got $status");
1.324 albertel 938:
1.159 albertel 939: if (( $status eq 'CLOSED' ) ||
940: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 941: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 942: ( $status eq 'BANNED') ||
1.216 albertel 943: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 944: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 945: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 946: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
947: $style);
1.159 albertel 948: if ( $target eq "web" ) {
1.343 albertel 949: my $msg;
1.159 albertel 950: if ($status eq 'UNAVAILABLE') {
1.245 albertel 951: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 952: } elsif ($status eq 'NOT_IN_A_SLOT') {
953: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 954: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 955: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 956: }
1.216 albertel 957: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 958: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 959: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 960: $msg.=&checkout_msg();
1.252 albertel 961: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 962: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 963: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 964: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 965: }
966: $result.=$msg.'<br />';
967: } elsif ($target eq 'tex') {
1.332 albertel 968: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
969: : '\begin{minipage}{\textwidth}';
1.443 foxr 970: $result.='\noindent \vskip 1 mm '.
1.332 albertel 971: $startminipage.'\vskip 0 mm';
1.159 albertel 972: if ($status eq 'UNAVAILABLE') {
1.211 albertel 973: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 974: } else {
1.211 albertel 975: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 976: }
977: }
1.324 albertel 978: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 979: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
980: $style);
1.324 albertel 981: if ($target eq 'web') {
1.375 albertel 982: $result .=
983: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 984: } elsif ($target eq 'grade') {
985: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
986: 'problem');
987: }
1.159 albertel 988: } elsif ($target eq 'web') {
1.360 albertel 989: if ($status eq 'CAN_ANSWER'
990: && $slot_name ne ''
991: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
992: # unproctored slot access, self checkin
993: &Apache::bridgetask::check_in('problem',undef,undef,
994: $slot_name);
995: }
1.368 albertel 996: $result.="\n $form_tag_start \t".
1.227 albertel 997: '<input type="hidden" name="submitted" value="yes" />';
998: # create a page header and exit
1.284 albertel 999: if ($env{'request.state'} eq "construct") {
1000: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1001: if ($Apache::lonhomework::type eq 'practice') {
1002: $result.= '<input type="submit" name="resetdata" '.
1003: 'value="'.&mt('New Problem Variation').'" />'.
1004: &practice_problem_header().'<hr />';
1005: }
1.227 albertel 1006: }
1007: # if we are viewing someone else preserve that info
1.284 albertel 1008: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1009: foreach my $field ('symb','courseid','domain','username') {
1010: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1011: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1012: }
1013: }
1014: } elsif ($target eq 'tex') {
1.319 foxr 1015: $result .= 'INSERTTEXFRONTMATTERHERE';
1016:
1.99 sakharuk 1017: }
1.159 albertel 1018: } elsif ($target eq 'edit') {
1.343 albertel 1019: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1020: $Apache::lonxml::warnings_error_header=
1021: &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 1022: my $temp=&Apache::edit::insertlist($target,$token);
1023: $result.=$temp;
1024: } elsif ($target eq 'modified') {
1025: $result=$token->[4];
1026: } else {
1027: # page_start returned a starting result, delete it if we don't need it
1028: $result = '';
1.99 sakharuk 1029: }
1.159 albertel 1030: return $result;
1.9 albertel 1031: }
1032:
1033: sub end_problem {
1.159 albertel 1034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1035: my $result;
1.310 foxr 1036:
1.321 albertel 1037: if (!$Apache::lonxml::metamode) {
1038: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1039: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1040: }
1.319 foxr 1041:
1042: if ($target eq 'tex') {
1.321 albertel 1043: # Figure out the front matter and replace the
1044: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1045: # this in end_problem because whether or not we display due
1046: # dates depends on whether due dates have already been
1047: # displayed in the problem parts.
1048:
1.319 foxr 1049: my $frontmatter = '';
1050: my $startminipage = '';
1051: if (not $env{'form.problem_split'}=~/yes/) {
1052: $startminipage = '\begin{minipage}{\textwidth}';
1053: }
1054: my $id = $Apache::inputtags::part;
1055: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1056: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1057: my @packages = split /,/,$packages;
1058: my $allow_print_points = 0;
1059: foreach my $partial_key (@packages) {
1060: if ($partial_key=~m/^part_0$/) {
1061: $allow_print_points=1;
1062: }
1063: }
1064: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1065: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1066: if (lc($env{'course.'.$env{'request.course.id'}.
1067: '.disableexampointprint'}) eq 'yes') {
1068: $allow_print_points=0;
1069: }
1070: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1071: 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 1072: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1073: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1074:
1075: # Figure out what the due date is and if we need to print
1076: # it in the problem header. We have been logging the
1077: # last due date written to file.
1078:
1079: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1080: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1081: my $duedate_text = &mt('Due date: [_1]'
1082: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1083: my $temp_file;
1084: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1085:
1086: # Figure out what the last printed due date is or set it
1087: # to the epoch if no duedates have been printed.
1088:
1089: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1090: if (-e $filename) {
1091: $temp_file = Apache::File->new($filename);
1092: my @due_file = <$temp_file>;
1093: $due_file_content = $due_file[$#due_file];
1094: chomp $due_file_content;
1095: }
1096:
1097: # We display the due date iff it is not the same as the last
1098: # duedate in problem header ($due_file_content), and
1099: # none of our parts displayed a duedate.
1100: #
1101: my $parts_with_displayduedate;
1102: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1103: $parts_with_displayduedate =
1104: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1105: } else {
1106: $parts_with_displayduedate = 0;
1107: }
1108: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1109: $temp_file = Apache::File->new('>'.$filename);
1110: print $temp_file "$duetime\n";
1111: if (not $env{'request.symb'} =~ m/\.page_/) {
1112: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1113: $frontmatter .= $begin_doc.
1.448 bisitz 1114: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1115: } else {
1116: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1117: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1118: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1119: }
1.319 foxr 1120: }
1121: } else {
1.448 bisitz 1122: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1123: }
1124: } else {
1125: if (not $env{'request.symb'} =~ m/\.page_/) {
1126: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1127: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1128: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1129: }
1.319 foxr 1130: } else {
1.381 albertel 1131: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1132: }
1133: }
1134: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1135: }
1136:
1.159 albertel 1137: my $status=$Apache::inputtags::status['-1'];
1138: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1139: $target eq 'tex') {
1.249 albertel 1140: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1141: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1142: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1143: &Apache::inputtags::grade;
1.324 albertel 1144: } elsif ($status eq 'NEEDS_CHECKIN') {
1145: # no need to grade, and don't want to hide data
1.249 albertel 1146: } else {
1147: # move any submission data to .hidden
1148: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1149: }
1.159 albertel 1150: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1151: $Apache::inputtags::part eq '0' &&
1.252 albertel 1152: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1153: # if part is zero, no <part>s existed, so we need show the current
1154: # grading status
1155: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1156: $result.= $gradestatus;
1157: }
1158: if (
1.284 albertel 1159: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1160: ($target eq 'answer') || ($target eq 'tex')
1161: ) {
1.227 albertel 1162: if ($target ne 'tex' &&
1.284 albertel 1163: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1164: $result.="</form>";
1.348 albertel 1165: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1166: }
1167: if ($target eq 'web') {
1.346 albertel 1168: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1169: } elsif ($target eq 'tex') {
1.178 sakharuk 1170: my $endminipage = '';
1.284 albertel 1171: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1172: $endminipage = '\end{minipage}';
1173: }
1.284 albertel 1174: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1175: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1176: } else {
1.262 sakharuk 1177: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1178: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1179: $result .= $endminipage.'\end{document} ';
1180: } else {
1.382 albertel 1181: $result .= $endminipage;
1.262 sakharuk 1182: }
1.159 albertel 1183: }
1184: }
1185: }
1186: if ($target eq 'grade') {
1187: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1188: &finalize_storage();
1189: }
1.284 albertel 1190: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1191: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1192: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1193: # normally we get it from above, but in CSTR
1.172 albertel 1194: # we always show answer mode too.
1.159 albertel 1195: }
1196: } elsif ($target eq 'meta') {
1197: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1198: @Apache::inputtags::response=();
1.159 albertel 1199: $result=&Apache::response::mandatory_part_meta;
1200: }
1.215 albertel 1201: $result.=&Apache::response::meta_part_order();
1.258 albertel 1202: $result.=&Apache::response::meta_response_order();
1.159 albertel 1203: } elsif ($target eq 'edit') {
1204: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1205: $result .= &problem_edit_footer();
1.320 albertel 1206: } elsif ($target eq 'modified') {
1207: $result .= $token->[2];
1.159 albertel 1208: }
1.155 albertel 1209:
1.284 albertel 1210: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1211: &Apache::inputtags::check_for_duplicate_ids();
1212: }
1.204 albertel 1213:
1214: &reset_problem_globals('problem');
1.159 albertel 1215:
1216: return $result;
1.48 albertel 1217: }
1218:
1.108 albertel 1219:
1.48 albertel 1220: sub start_library {
1.159 albertel 1221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1222: my ($result,$form_tag_start);
1.371 albertel 1223: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1224: &init_problem_globals('library');
1225: $Apache::lonhomework::type='problem';
1226: }
1.159 albertel 1227: if ($target eq 'edit') {
1.343 albertel 1228: ($result,$form_tag_start)=
1229: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1230: 'Edit');
1231: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1232: my $temp=&Apache::edit::insertlist($target,$token);
1233: $result.=$temp;
1234: } elsif ($target eq 'modified') {
1235: $result=$token->[4];
1.340 albertel 1236: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1237: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1238: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1239: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1240: ($result,$form_tag_start)=
1241: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1242: $name);
1.159 albertel 1243: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1244: $result.=" \n $form_tag_start".
1.159 albertel 1245: '<input type="hidden" name="submitted" value="yes" />';
1246: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1247: if ($Apache::lonhomework::type eq 'practice') {
1248: $result.= '<input type="submit" name="resetdata" '.
1249: 'value="'.&mt('New Problem Variation').'" />'.
1250: &practice_problem_header().'<hr />';
1251: }
1.159 albertel 1252: }
1253: return $result;
1.48 albertel 1254: }
1255:
1256: sub end_library {
1.159 albertel 1257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1258: my $result='';
1259: if ($target eq 'edit') {
1260: $result=&problem_edit_footer();
1.371 albertel 1261: } elsif ($target eq 'web'
1262: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1263: && $env{'request.state'} eq "construct") {
1.349 albertel 1264: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1265: }
1.371 albertel 1266: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1267: &reset_problem_globals('library');
1268: }
1.159 albertel 1269: return $result;
1.197 www 1270: }
1271:
1272: sub start_definetag {
1.326 albertel 1273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1274:
1275: my $result;
1276:
1277: my $name = $token->[2]->{'name'};
1.326 albertel 1278: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1279: if ($target eq 'web') {
1280: if ($name=~/^\//) {
1281: $result=
1282: '<br /><table class="LC_sty_end"><tr><th>'.
1283: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1284: } else {
1285: $result=
1286: '<br /><table class="LC_sty_begin"><tr><th>'.
1287: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1288: }
1289: $skip = &HTML::Entities::encode($skip, '<>&"');
1290: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1291: }
1292: return $result;
1293: }
1294:
1295: sub end_definetag {
1296: return '';
1.1 albertel 1297: }
1298:
1299: sub start_block {
1.201 albertel 1300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1301:
1302: my $result;
1.1 albertel 1303:
1.339 albertel 1304: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1305: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1306: my $code = $token->[2]->{'condition'};
1.385 albertel 1307: if (defined($code) && $code ne '') {
1.137 albertel 1308: if (!$Apache::lonxml::default_homework_loaded) {
1309: &Apache::lonxml::default_homework_load($safeeval);
1310: }
1.131 albertel 1311: $result = &Apache::run::run($code,$safeeval);
1312: &Apache::lonxml::debug("block :$code: returned :$result:");
1313: } else {
1314: $result='1';
1315: }
1316: if ( ! $result ) {
1.201 albertel 1317: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1318: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1319: }
1320: $result='';
1321: } elsif ($target eq 'edit') {
1322: $result .=&Apache::edit::tag_start($target,$token);
1323: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1324: $token,40);
1325: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1326: } elsif ($target eq 'modified') {
1327: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1328: $safeeval,'condition');
1329: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1330: }
1.131 albertel 1331: return $result;
1.1 albertel 1332: }
1333:
1334: sub end_block {
1.167 www 1335: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1336: my $result;
1337: if ($target eq "edit") {
1338: $result.= &Apache::edit::tag_end($target,$token,'');
1339: }
1340: return $result;
1341: }
1342:
1343: sub start_languageblock {
1.201 albertel 1344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1345:
1346: my $result;
1347:
1.339 albertel 1348: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1349: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1350: my $include = $token->[2]->{'include'};
1351: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1352: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1353: # This should not even happen, since we should at least have the server language
1.398 www 1354: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1355: # Now loop over all languages in order of preference
1356: foreach my $preferred_language (@preferred_languages) {
1.394 www 1357: # If the languageblock has no arguments, show the contents
1.399 www 1358: $result=1;
1359: my $found=0;
1.394 www 1360: # Do we have an include argument?
1.398 www 1361: if ($include) {
1.394 www 1362: # If include is specified, by default, don't render the block
1.399 www 1363: $result=0;
1.398 www 1364: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1365: # ... but if my preferred language is included, render it
1.398 www 1366: if ($included_language eq $preferred_language) {
1.399 www 1367: $result=1;
1368: $found=1;
1.398 www 1369: }
1370: }
1371: }
1.394 www 1372: # Do we have an exclude argument?
1.398 www 1373: if ($exclude) {
1.399 www 1374: $result=1;
1.398 www 1375: foreach my $excluded_language (split(/\,/,$exclude)) {
1376: if ($excluded_language eq $preferred_language) {
1.399 www 1377: $result=0;
1378: $found=1;
1.398 www 1379: }
1380: }
1381: }
1.399 www 1382: if ($found) { last; }
1.398 www 1383: }
1.201 albertel 1384: if ( ! $result ) {
1385: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1386: $style);
1387: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1388: }
1389: $result='';
1.167 www 1390: } elsif ($target eq 'edit') {
1391: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1392: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1393: $token,40);
1.211 albertel 1394: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1395: $token,40);
1396: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1397: } elsif ($target eq 'modified') {
1398: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1399: $safeeval,'include',
1400: 'exclude');
1.167 www 1401: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1402: }
1403: return $result;
1404: }
1405:
1406: sub end_languageblock {
1.170 www 1407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1408: my $result;
1.201 albertel 1409: if ($target eq "edit") {
1.170 www 1410: $result.= &Apache::edit::tag_end($target,$token,'');
1411: }
1412: return $result;
1413: }
1414:
1.397 albertel 1415: {
1416: my %available_texts;
1417: sub start_translated {
1418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1419: &Apache::lonxml::register('Apache::structuretags',('lang'));
1420: undef(%available_texts);
1421: }
1422:
1423: sub end_translated {
1424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1425: my $result;
1426: #show the translation on viewable targets
1427: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1428: # or non-viewable targets, if it's embedded in something that
1429: # wants the output
1430: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1431: && &Apache::lonxml::in_redirection() ) ) {
1432: my @possibilities = keys(%available_texts);
1433: my $which =
1434: &Apache::loncommon::languages(\@possibilities) || 'default';
1435: $result = $available_texts{$which};
1436: }
1437: undef(%available_texts);
1438: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1439: return $result;
1440: }
1441:
1442:
1443: sub start_lang {
1444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1445: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1446: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1447: &Apache::lonxml::startredirection();
1448: }
1449: return '';
1450: }
1451:
1452: sub end_lang {
1453: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1454: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1455: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1456: my $result = &Apache::lonxml::endredirection();
1457: my $which = &Apache::lonxml::get_param('which',$parstack,
1458: $safeeval);
1.431 raeburn 1459: if ($which=~/\w/) {
1460: $available_texts{$which} = $result;
1461: }
1462: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1463: $safeeval);
1464: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1465: if ($language=~/\w/) {
1466: $available_texts{$language} = $result;
1467: }
1.427 bisitz 1468: }
1469:
1.397 albertel 1470: }
1471: return '';
1472: }
1473: }
1474:
1.170 www 1475: sub start_instructorcomment {
1.201 albertel 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1477:
1478: my $result;
1479:
1.339 albertel 1480: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1481: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1482: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1483: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1484: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1485: $parser,$style);
1.170 www 1486: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1487: }
1488: $result='';
1489: } elsif ($target eq 'edit') {
1490: $result .=&Apache::edit::tag_start($target,$token);
1491: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1492: }
1493: return $result;
1494: }
1495:
1496: sub end_instructorcomment {
1.159 albertel 1497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1498: my $result;
1499: if ($target eq "edit") {
1500: $result.= &Apache::edit::tag_end($target,$token,'');
1501: }
1502: return $result;
1.4 tsai 1503: }
1504:
1505: sub start_while {
1.326 albertel 1506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1507:
1.160 albertel 1508: my $result;
1.339 albertel 1509: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1510: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1511: my $code = $token->[2]->{'condition'};
1.4 tsai 1512:
1.160 albertel 1513: push( @Apache::structuretags::whileconds, $code);
1514: if (!$Apache::lonxml::default_homework_loaded) {
1515: &Apache::lonxml::default_homework_load($safeeval);
1516: }
1517: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1518: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1519: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1520: push( @Apache::structuretags::whileline, $token->[5]);
1521: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1522: if ( $result ) {
1523: &Apache::lonxml::newparser($parser,\$bodytext);
1524: }
1525: } elsif ($target eq 'edit') {
1526: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1527: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1528: $token,40);
1529: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1530: } elsif ($target eq 'modified') {
1531: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1532: $safeeval,'condition');
1533: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1534: }
1.160 albertel 1535: return $result;
1.4 tsai 1536: }
1537:
1538: sub end_while {
1.159 albertel 1539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1540: my $result;
1541:
1.339 albertel 1542: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1543: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1544: my $code = pop(@Apache::structuretags::whileconds);
1545: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1546: my $line = pop(@Apache::structuretags::whileline);
1547: my $return = &Apache::run::run($code,$safeeval);
1548: my $starttime=time;
1549: my $error=0;
1550: while ($return) {
1551: if (time-$starttime >
1552: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1553: $return = 0; $error=1; next;
1.161 albertel 1554: }
1555: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1556: if ($target eq 'grade' || $target eq 'answer' ||
1557: $target eq 'analyze') {
1558: # grade/answer/analyze should produce no output but if we
1559: # are redirecting, the redirecter should know what to do
1560: # with the output
1561: if (!$Apache::lonxml::redirection) { undef($result); }
1562: }
1.161 albertel 1563: $return = &Apache::run::run($code,$safeeval);
1564: }
1565: if ($error) {
1.430 bisitz 1566: &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 1567: }
1568: } elsif ($target eq "edit") {
1569: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1570: }
1.160 albertel 1571: return $result;
1.1 albertel 1572: }
1.6 tsai 1573:
1.160 albertel 1574: # <randomlist show="1">
1.6 tsai 1575: # <tag1>..</tag1>
1576: # <tag2>..</tag2>
1577: # <tag3>..</tag3>
1.160 albertel 1578: # ...
1.6 tsai 1579: # </randomlist>
1580: sub start_randomlist {
1.326 albertel 1581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1582: my $result;
1.339 albertel 1583: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1584: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1585: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1586: my $b_parser= HTML::LCParser->new(\$body);
1587: $b_parser->xml_mode(1);
1588: $b_parser->marked_sections(1);
1.159 albertel 1589: my $b_tok;
1590: my @randomlist;
1591: my $list_item;
1592: while($b_tok = $b_parser->get_token() ) {
1593: if($b_tok->[0] eq 'S') { # start tag
1594: # get content of the tag until matching end tag
1595: # get all text upto the matching tag
1596: # and push the content into @randomlist
1597: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1598: $b_parser);
1599: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1600: push(@randomlist,$list_item);
1601: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1602: # $list_item</b>";
1603: }
1604: if($b_tok->[0] eq 'T') { # text
1605: # what to do with text in between tags?
1606: # print "<b>TEXT $b_tok->[1]</b><br />";
1607: }
1608: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1609: # print "<b>END-TAG $b_tok->[1]</b><br />";
1610: # }
1611: }
1.303 albertel 1612: if (@randomlist) {
1613: my @idx_arr = (0 .. $#randomlist);
1614: &Apache::structuretags::shuffle(\@idx_arr);
1615: my $bodytext = '';
1616: my $show=$#randomlist;
1617: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1618: $showarg--;
1619: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1620: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1621: my @currlist;
1622: my $part = $Apache::inputtags::part;
1623: if ($part ne '') {
1624: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1625: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1626: if (!(grep(/^\Q$part\E$/,@currlist))) {
1627: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1628: }
1629: } else {
1630: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1631: }
1632: }
1633: }
1.303 albertel 1634: for(0 .. $show) {
1635: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1636: }
1637: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1638: }
1639: } elsif ($target eq 'edit' ) {
1640: $result .=&Apache::edit::tag_start($target,$token);
1641: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1642: $token,5);
1643: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1644: } elsif ($target eq 'modified' ) {
1645: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1646: $safeeval,'show');
1647: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1648: }
1649: return $result;
1.7 tsai 1650: }
1651:
1652: sub shuffle {
1653: my $a=shift;
1654: my $i;
1.303 albertel 1655: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1656: &Apache::response::pushrandomnumber();
1.159 albertel 1657: for($i=@$a;--$i;) {
1658: my $j=int(&Math::Random::random_uniform() * ($i+1));
1659: next if $i == $j;
1660: @$a[$i,$j] = @$a[$j,$i];
1661: }
1.251 albertel 1662: &Apache::response::poprandomnumber();
1.7 tsai 1663: }
1.6 tsai 1664: }
1665:
1666: sub end_randomlist {
1.159 albertel 1667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1668: my $result;
1669: if ($target eq 'edit' ) {
1670: $result=&Apache::edit::tag_end($target,$token,
1671: 'End Randomly Parsed Block');
1672: }
1673: return $result;
1.6 tsai 1674: }
1675:
1.283 albertel 1676: sub ordered_show_check {
1677: my $last_part=$Apache::inputtags::partlist[-2];
1678: my $in_order=
1679: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1680: my $in_order_show=1;
1681: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1682: $in_order_show=&Apache::response::check_status($last_part);
1683: }
1684: return $in_order_show;
1685: }
1686:
1.469 ! www 1687:
! 1688: sub start_startpartmarker {
! 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
! 1690: my $result='';
! 1691: if ($target eq 'edit') {
! 1692: $result=&Apache::edit::tag_start($target,$token);
! 1693: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
! 1694: $result.=&Apache::edit::end_table();
! 1695:
! 1696: }
! 1697: return $result;
! 1698: }
! 1699:
! 1700: sub end_startpartmarker {
! 1701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
! 1702: my @result;
! 1703: if ($target eq 'edit') { $result[1]='no'; }
! 1704: return @result;
! 1705: }
! 1706:
! 1707: sub start_endpartmarker {
! 1708: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
! 1709: my $result='';
! 1710: if ($target eq 'edit') {
! 1711: $result=&Apache::edit::tag_start($target,$token);
! 1712: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
! 1713: $result.=&Apache::edit::end_table();
! 1714:
! 1715: }
! 1716: return $result;
! 1717: }
! 1718:
! 1719: sub end_endpartmarker {
! 1720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
! 1721: my @result;
! 1722: if ($target eq 'edit') { $result[1]='no'; }
! 1723: return @result;
! 1724: }
! 1725:
! 1726:
! 1727:
! 1728:
! 1729:
1.11 albertel 1730: sub start_part {
1.326 albertel 1731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1732: if (!$Apache::lonxml::metamode) {
1733: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1734: # duedates.
1735: }
1.159 albertel 1736: my $result='';
1.386 albertel 1737: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1738: $Apache::inputtags::part=$id;
1.177 albertel 1739: push(@Apache::inputtags::partlist,$id);
1740: @Apache::inputtags::response=();
1.159 albertel 1741: @Apache::inputtags::previous=();
1742: @Apache::inputtags::previous_version=();
1.405 albertel 1743: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1744: &Apache::response::reset_params();
1745:
1.159 albertel 1746: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1747: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1748: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1749: my $in_order_show=&ordered_show_check();
1.214 albertel 1750: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1751: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1752: &Apache::run::run($expression,$safeeval);
1.159 albertel 1753:
1754: if ($target eq 'meta') {
1.224 www 1755: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1756: return &Apache::response::mandatory_part_meta.
1757: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1758: } elsif ($target eq 'web' || $target eq 'grade' ||
1759: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1760: if ($hidden || !$in_order_show) {
1.326 albertel 1761: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1762: } else {
1763: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1764: push (@Apache::inputtags::status,$status);
1765: my $expression='$external::datestatus="'.$status.'";';
1766: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1767: &Apache::run::run($expression,$safeeval);
1.284 albertel 1768: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1769: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1770: }
1.216 albertel 1771: if (( $status eq 'CLOSED' ) ||
1772: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1773: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1774: ( $status eq 'BANNED') ||
1775: ( $status eq 'UNAVAILABLE') ||
1776: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1777: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1778: $style);
1.159 albertel 1779: if ( $target eq "web" ) {
1.211 albertel 1780: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1781: } elsif ( $target eq 'tex' ) {
1.284 albertel 1782: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1783: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1784: } else {
1.211 albertel 1785: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1786: }
1.159 albertel 1787: }
1788: } else {
1789: if ($target eq 'tex') {
1.284 albertel 1790: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1791: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1792: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1793: } else {
1794: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1795: }
1.195 sakharuk 1796: }
1.159 albertel 1797: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1798: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1799: my @allkeys = split /,/,$allkeys;
1800: my $allow_print_points = 0;
1801: foreach my $partial_key (@allkeys) {
1.230 albertel 1802: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1803: if ($1 ne '0') {$allow_print_points=1;}
1804: }
1805: }
1.275 albertel 1806: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1807: if (defined($maxtries) && $maxtries < 0) {
1808: $allow_print_points=0;
1809: }
1.302 albertel 1810: if (lc($env{'course.'.$env{'request.course.id'}.
1811: '.disableexampointprint'}) eq 'yes') {
1812: $allow_print_points=0;
1813: }
1.463 foxr 1814: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1815: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1816:
1817: }
1.233 www 1818: } elsif ($target eq 'web') {
1.356 www 1819: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1820: }
1821: }
1822: }
1823: } elsif ($target eq 'edit') {
1824: $result.=&Apache::edit::tag_start($target,$token);
1825: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1826: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1827: ' '.
1828: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1829: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1830: } elsif ($target eq 'modified') {
1831: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1832: $safeeval,'id','display');
1.159 albertel 1833: if ($constructtag) {
1.225 albertel 1834: #limiting ids to only letters numbers, and space
1.224 www 1835: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1836: $result = &Apache::edit::rebuild_tag($token);
1837: }
1838: }
1839: return $result;
1.11 albertel 1840: }
1841:
1842: sub end_part {
1.159 albertel 1843: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1844: &Apache::lonxml::debug("in end_part $target ");
1845: my $status=$Apache::inputtags::status['-1'];
1846: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1847: my $in_order_show=&ordered_show_check();
1.321 albertel 1848: my $result;
1849: if (!$Apache::lonxml::metamode) {
1850: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1851: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1852: }
1.312 albertel 1853: if ($target eq 'grade') {
1.249 albertel 1854: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1855: !$hidden && $in_order_show) {
1.311 foxr 1856: $result.=&Apache::inputtags::grade;
1.249 albertel 1857: } else {
1858: # move any submission data to .hidden
1859: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1860: }
1.283 albertel 1861: } elsif (($target eq 'web' || $target eq 'tex') &&
1862: !$hidden && $in_order_show) {
1.159 albertel 1863: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1864: $target);
1.212 albertel 1865: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1866: $gradestatus='';
1867: }
1.311 foxr 1868: $result.=$gradestatus;
1.265 sakharuk 1869: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1870: } elsif ($target eq 'edit') {
1.311 foxr 1871: $result.=&Apache::edit::end_table();
1.322 albertel 1872: } elsif ($target eq 'modified') {
1873: $result .= $token->[2];
1.159 albertel 1874: }
1875: pop @Apache::inputtags::status;
1876: $Apache::inputtags::part='';
1.295 albertel 1877: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1878: return $result;
1.11 albertel 1879: }
1.1 albertel 1880:
1.25 albertel 1881: sub start_preduedate {
1.326 albertel 1882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1883: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1884: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1885: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1886: if (!$Apache::lonhomework::scantronmode &&
1887: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1888: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1889: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1890: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1891: }
1.24 albertel 1892: }
1.159 albertel 1893: return '';
1.24 albertel 1894: }
1895:
1.25 albertel 1896: sub end_preduedate {
1.159 albertel 1897: return '';
1.24 albertel 1898: }
1899:
1.369 foxr 1900: # In all the modes where <postanswerdate> text is
1901: # displayable, all we do is eat up the text between the start/stop
1902: # tags if the conditions are not right to display it.
1.25 albertel 1903: sub start_postanswerdate {
1.326 albertel 1904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1905: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1906: &Apache::lonnet::allowed('pav',
1907: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1908: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1909: $target eq 'tex' ) {
1.300 albertel 1910: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1911: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1912: (($target eq 'tex') && !$pav)) {
1.326 albertel 1913: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1914: }
1915: }
1916: return '';
1.24 albertel 1917: }
1918:
1.25 albertel 1919: sub end_postanswerdate {
1.159 albertel 1920: return '';
1.24 albertel 1921: }
1922:
1.25 albertel 1923: sub start_notsolved {
1.326 albertel 1924: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1925: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1926: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1927: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1928: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1929: if ($gradestatus =~ /^correct/ &&
1930: &Apache::response::show_answer()) {
1.159 albertel 1931: &Apache::lonxml::debug("skipping");
1.326 albertel 1932: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1933: }
1.24 albertel 1934: }
1.159 albertel 1935: return '';
1.24 albertel 1936: }
1937:
1.25 albertel 1938: sub end_notsolved {
1.159 albertel 1939: return '';
1.24 albertel 1940: }
1941:
1942: sub start_solved {
1.326 albertel 1943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1944: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1945: $target eq 'tex') {
1946: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1947: if ($gradestatus !~ /^correct/ ||
1948: !&Apache::response::show_answer()) {
1.326 albertel 1949: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1950: }
1.24 albertel 1951: }
1.159 albertel 1952: return '';
1.24 albertel 1953: }
1954:
1955: sub end_solved {
1.248 albertel 1956: return '';
1957: }
1958:
1959: sub start_problemtype {
1.326 albertel 1960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1961: my $result;
1.339 albertel 1962: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1963: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1964: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1965: if (!defined($mode)) { $mode='show'; }
1966: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1967: my $found=0;
1968: foreach my $type (split(',',$for)) {
1969: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1970: }
1971: if ($mode eq 'show' && !$found) {
1.326 albertel 1972: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1973: }
1974: if ($mode eq 'hide' && $found) {
1.326 albertel 1975: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1976: }
1977: } elsif ($target eq 'edit') {
1978: $result .=&Apache::edit::tag_start($target,$token);
1979: $result.=&Apache::edit::select_arg('Mode:','mode',
1980: [['show','Show'],
1981: ['hide','Hide']]
1982: ,$token);
1983: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1984: [ ['exam','Exam/Quiz Problem'],
1985: ['survey','Survey'],
1.465 raeburn 1986: ['surveycred','Survey (with credit)'],
1987: ['anonsurvey','Anonymous Survey'],
1988: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 1989: ['problem','Homework Problem'],
1990: ['practice','Practice Problem'] ]
1.248 albertel 1991: ,$token);
1992: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1993: } elsif ($target eq 'modified') {
1994: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1995: $safeeval,'mode','for');
1996: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1997: }
1998: return $result;
1999: }
2000:
2001: sub end_problemtype {
1.159 albertel 2002: return '';
1.24 albertel 2003: }
1.34 albertel 2004:
2005: sub start_startouttext {
1.159 albertel 2006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2007: my @result=(''.'');
2008: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2009:
2010: my $nesting =
2011: &Apache::lonxml::set_state('outtext',
2012: &Apache::lonxml::get_state('outtext')+1);
2013: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2014: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2015: }
1.159 albertel 2016: return (@result);
1.34 albertel 2017: }
1.159 albertel 2018:
1.34 albertel 2019: sub end_startouttext {
1.326 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2021: my $result='';
2022: my $text='';
2023: if ($target eq 'edit') {
1.424 foxr 2024: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2025: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2026: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2027: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2028: .&Apache::edit::deletelist($target,$token)
2029: .'</span></td>';
1.425 raeburn 2030: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 2031: $result .= '<td align="left">'
2032: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2033: .'</td>'
2034: .'<td>'
2035: .&Apache::edit::insertlist($target,$token)
2036: .'</td>';
2037: }
1.425 raeburn 2038: $result.='<td align="right" valign="top">' .
1.434 foxr 2039: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2040: &Apache::edit::end_row().
1.362 albertel 2041: &Apache::edit::start_spanning_row()."\n".
1.255 www 2042: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2043: }
2044: if ($target eq 'modified') {
1.219 albertel 2045: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2046: }
2047: if ($target eq 'tex') {
2048: $result .= '\noindent ';
2049: }
2050: return $result;
1.34 albertel 2051: }
1.159 albertel 2052:
1.34 albertel 2053: sub start_endouttext {
1.159 albertel 2054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2055: my $result='';
2056: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2057: if ($target eq "modified") {
2058: $result='<endouttext />'.
1.377 albertel 2059: &Apache::edit::handle_insertafter('startouttext');
2060: }
1.404 albertel 2061:
2062: my $nesting =
2063: &Apache::lonxml::set_state('outtext',
2064: &Apache::lonxml::get_state('outtext')-1);
2065: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2066: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2067: &Apache::lonxml::set_state('outtext', 0);
2068: }
1.159 albertel 2069: return $result;
1.34 albertel 2070: }
1.159 albertel 2071:
1.34 albertel 2072: sub end_endouttext {
1.159 albertel 2073: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2074: my @result=('','');
2075: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2076: return (@result);
1.34 albertel 2077: }
1.159 albertel 2078:
1.45 albertel 2079: sub delete_startouttext {
1.326 albertel 2080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2081: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2082: my $text=$$parser['-1']->get_text("/endouttext");
2083: my $ntoken=$$parser['-1']->get_token();
2084: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2085: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2086: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2087: # they did the last time round
2088: &Apache::lonxml::increasedepth($ntoken);
2089: &Apache::lonxml::decreasedepth($ntoken);
2090: return 1;
1.193 www 2091: }
2092:
2093: sub start_simpleeditbutton {
2094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2095: my $result='';
1.284 albertel 2096: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2097: ($target eq 'web') &&
1.330 albertel 2098: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2099: my $url=$env{'request.noversionuri'};
1.193 www 2100: $url=~s/\?.*$//;
1.367 albertel 2101: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2102: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2103: # $result='<p class="LC_warning">'
2104: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2105: # .&Apache::loncommon::help_open_topic('Caching')
2106: # .'</p>';
1.451 bisitz 2107: $result.=&Apache::lonhtmlcommon::start_funclist()
2108: .&Apache::lonhtmlcommon::add_item_funclist(
2109: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2110: .&mt('Edit').'</a>')
2111: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2112:
1.193 www 2113: }
2114: return $result;
2115: }
2116:
2117: sub end_simpleeditbutton {
2118: return '';
1.45 albertel 2119: }
1.34 albertel 2120:
1.428 raeburn 2121: sub practice_problem_header {
2122: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2123: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2124: '</span>';
2125: }
2126:
1.1 albertel 2127: 1;
2128: __END__
1.435 jms 2129:
2130: =pod
2131:
2132: =back
2133:
2134: =cut
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