Annotation of loncom/homework/structuretags.pm, revision 1.444.4.2.2.2
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.444.4.2.2.2! (raeburn 4:: # $Id: structuretags.pm,v 1.444.4.2.2.1 2009/11/27 21:20:44 www Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.344 albertel 206: if (defined($found{'body'})) {
207: $body_args{'skip_phases'}{'body'}=1;
208: } elsif (!defined($found{'body'})
209: && $env{'request.state'} eq 'construct') {
1.343 albertel 210: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 211: if ($env{'environment.remote'} ne 'off') {
212: $body_args{'only_body'} = 1;
213: }
1.297 albertel 214: }
1.272 albertel 215: } elsif (!defined($found{'body'})) {
1.343 albertel 216: my %add_entries;
1.159 albertel 217: my $background=&Apache::lonxml::get_param('background',$parstack,
218: $safeeval);
1.343 albertel 219: if ($background ne '' ) {
220: $add_entries{'background'} = $background;
221: }
1.344 albertel 222:
1.290 albertel 223: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
224: $safeeval);
1.344 albertel 225: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
226:
227: $body_args{'bgcolor'} = $bgcolor;
228: $body_args{'no_title'} = 1;
229: $body_args{'force_register'} = 1;
230: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 231: if ($env{'environment.remote'} eq 'off'
232: && $env{'request.state'} eq 'construct') {
233: $body_args{'only_body'} = 1;
234: }
1.344 albertel 235: }
1.365 albertel 236: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 237: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
238: \%body_args);
1.444.4.2.2.2! (raeburn 239:: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 240:: if (!defined($found{'body'})
! 241:: && $env{'request.state'} ne 'construct'
! 242:: && ($target eq 'web' || $target eq 'webgrade')) {
! 243::
! 244:: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
! 245:: if ($symb eq '' && !$publicuser) {
! 246:: $page_start .= '<p class="LC_info">'
! 247:: .&mt('Browsing resource, all submissions are temporary.')
! 248:: .'</p>';
! 249:: }
! 250:: }
! 251:: }
1.344 albertel 252:
1.409 albertel 253: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 254: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 255: }
1.344 albertel 256:
1.159 albertel 257: my $form_tag_start;
258: if (!defined($found{'form'})) {
1.337 albertel 259: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 260: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 261: $form_tag_start.=$uri.'" ';
262: if ($target eq 'edit') {
263: $form_tag_start.=&Apache::edit::form_change_detection();
264: }
1.368 albertel 265: $form_tag_start.='>'."\n";
1.355 albertel 266:
267: my $symb=&Apache::lonnet::symbread();
268: if ($symb =~ /\S/) {
269: $symb=
270: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
271: $form_tag_start.=
1.368 albertel 272: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 273: }
1.159 albertel 274: }
1.343 albertel 275: return ($page_start,$form_tag_start);
1.105 albertel 276: }
277:
1.141 matthew 278: #use Time::HiRes();
1.105 albertel 279: sub get_resource_name {
1.159 albertel 280: my ($parstack,$safeeval)=@_;
1.388 foxr 281: my $name;
1.204 albertel 282: if (defined($Apache::lonhomework::name)) {
1.388 foxr 283: $name = $Apache::lonhomework::name;
284: } else {
285: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 286: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 287: if ($name eq '') {
288: $name=&Apache::lonnet::EXT('resource.title');
289: if ($name eq 'con_lost') { $name = ''; }
290: }
291: if ($name!~/\S+/) {
292: $name=$env{'request.uri'};
293: $name=~s-.*/([^/]+)$-$1-;
294: }
295: # The name has had html tags escaped:
296:
297: $name=~s/</</gs;
298: $name=~s/>/>/gs;
299:
300: $Apache::lonhomework::name=$name;
1.204 albertel 301: }
1.159 albertel 302: return $name;
1.105 albertel 303: }
304:
305: sub setup_rndseed {
1.159 albertel 306: my ($safeeval)=@_;
307: my $rndseed;
1.367 albertel 308: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 309: if ($env{'request.state'} eq "construct"
310: || $symb eq ''
311: || $Apache::lonhomework::type eq 'practice'
312: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 313: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 314: ['rndseed']);
1.284 albertel 315: $rndseed=$env{'form.rndseed'};
1.159 albertel 316: if (!$rndseed) {
1.162 albertel 317: $rndseed=$Apache::lonhomework::history{'rndseed'};
318: if (!$rndseed) {
319: $rndseed=time;
320: }
1.284 albertel 321: $env{'form.rndseed'}=$rndseed;
1.162 albertel 322: }
1.374 albertel 323: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
324: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 325: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 326: srand(time);
327: $rndseed=int(rand(2100000000));
1.284 albertel 328: $env{'form.rndseed'}=$rndseed;
329: delete($env{'form.resetdata'});
330: delete($env{'form.newrandomization'});
1.159 albertel 331: }
1.187 albertel 332: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 333: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 334: }
1.247 albertel 335: if ($Apache::lonhomework::history{'resource.CODE'}) {
336: $rndseed=&Apache::lonnet::rndseed();
337: }
1.221 albertel 338: if ($safeeval) {
339: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 340: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 341: }
1.159 albertel 342: }
343: return $rndseed;
1.105 albertel 344: }
345:
1.268 albertel 346: sub remember_problem_state {
347: return '
1.284 albertel 348: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
349: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
350: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 351: }
352:
1.423 www 353: sub problem_edit_buttons {
354: return '
1.408 albertel 355: <div class="LC_edit_problem_discards">
1.416 raeburn 356: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 357: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 358: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 359: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 360: </div>
361: <div class="LC_edit_problem_saves">
1.416 raeburn 362: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
363: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 364: </div>';
365: }
366:
367: sub problem_edit_header {
368: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
369: &Apache::structuretags::remember_problem_state().'
370: <div class="LC_edit_problem_header">
371: <div class="LC_edit_problem_header_title">
372: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
373: </div>'.
374: &problem_edit_buttons().'
1.408 albertel 375: <hr class="LC_edit_problem_divide" />
1.409 albertel 376: '.&Apache::lonxml::message_location().'
1.408 albertel 377: </div>
378: '.
1.282 albertel 379: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 380: }
381:
382: sub problem_edit_footer {
1.412 albertel 383: return '</td></tr></table><br />
384: <div class="LC_edit_problem_footer">
1.423 www 385: <hr class="LC_edit_problem_divide" />'.
386: &problem_edit_buttons().'
1.412 albertel 387: <hr class="LC_edit_problem_divide" />
388: </div>
389: '.
390:
1.348 albertel 391: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 392: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 393: }
394:
1.235 albertel 395: sub option {
396: my ($value,$name) = @_;
397: my $result ="<option value='".$value."' ";
1.284 albertel 398: if ($env{'form.'.$name} eq $value) {
1.235 albertel 399: $result.=" selected='on' ";
400: }
401: $result.='>';
402: return $result;
403: }
404:
1.105 albertel 405: sub problem_web_to_edit_header {
1.159 albertel 406: my ($rndseed)=@_;
1.406 albertel 407: my $result .= '<div class="LC_edit_problem_header">';
408:
409: if (!$Apache::lonhomework::parsing_a_task) {
410: $result .=
411: '<div class="LC_edit_problem_header_title">'.
412: &mt('Problem Testing').
413: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
414: '</div>';
415: } else {
416: $result .=
417: '<div class="LC_edit_problem_header_title">'.
418: &mt('Task Testing').
419: '</div>';
420: }
421:
1.444.4.1 raeburn 422: my $show_all_foils_text =
423: ($Apache::lonhomework::parsing_a_task) ?
424: &mt('Show All Instances')
425: : &mt('Show All Foils');
1.315 albertel 426:
1.444.4.1 raeburn 427: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
428: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 429: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.444.4.1 raeburn 430: $show_all.= ' /> '.$show_all_foils_text
431: .'</label></span>';
1.406 albertel 432:
433:
1.384 albertel 434:
1.406 albertel 435: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 436: if (!$Apache::lonhomework::parsing_a_task) {
437: $result.="
1.406 albertel 438: <div class='LC_edit_problem_header_row1'>
439: <span class=\"LC_nobreak\">
1.405 albertel 440: ".&mt("Problem Status:")."
1.235 albertel 441: <select name='problemstate'>
1.270 albertel 442: <option value=''></option>
1.235 albertel 443: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
444: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
445: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
446: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
447: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
448: </select>
1.406 albertel 449: </span>
450: <span class=\"LC_nobreak\">
1.405 albertel 451: ".&mt("Problem Type:")."
1.235 albertel 452: <select name='problemtype'>
1.270 albertel 453: <option value=''></option>
1.242 albertel 454: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 455: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 456: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 457: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 458: </select>
1.406 albertel 459: </span>
460: $show_all
461: </div>
462: <div class='LC_edit_problem_header_row2'>
463: <span class=\"LC_nobreak\">
1.405 albertel 464: ".&mt("Feedback Mode:")."
1.235 albertel 465: <select name='problemstatus'>
466: <option value=''></option>
1.242 albertel 467: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 468: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
469: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 470: </select>
1.406 albertel 471: </span>
472: ";
473:
1.376 albertel 474: } elsif ($Apache::lonhomework::parsing_a_task) {
475: $result.="
1.406 albertel 476: <div class='LC_edit_problem_header_row1'>
477: <span class=\"LC_nobreak\">
1.405 albertel 478: ".&mt("Problem Status:")."
1.376 albertel 479: <select name='problemstate'>
480: <option value=''></option>
481: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
482: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
483: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
484: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
485: </select>
1.406 albertel 486: </span>
487: $show_all
488: ";
489: }
490: $result.='
491: <span class="LC_nobreak">
492: '.&mt('Apply style file: ').'
493: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
494: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
495: </span>
1.422 www 496: </div>
497: <div class="LC_edit_problem_header_row1">'.
498: &Apache::lonxml::renderingoptions().'
1.406 albertel 499: </div>
500: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
501: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
502: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
503: </div>
504: <hr class="LC_edit_problem_divide" />
505: <div class="LC_edit_problem_header_randomize_row">
506: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
507: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
508: <input type="text" name="rndseed" size="10" value="'.
509: $rndseed.'"
510: onchange="javascript:document.lonhomework.changerandseed.click()" />';
511:
512: if (!$Apache::lonhomework::parsing_a_task) {
513: my $numtoanalyze=$env{'form.numtoanalyze'};
514: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 515: $result .= '<span class="LC_nobreak">'.
516: &mt('[_1] for [_2] versions.',
1.416 raeburn 517: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 518: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
519: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 520: $numtoanalyze.'" size="5" />').
521: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
522: '</span>';
523:
1.313 albertel 524: }
1.406 albertel 525:
526: $result.='
527: </div>
1.408 albertel 528: <div class="LC_edit_problem_header_edit_row">';
1.416 raeburn 529: $result.='<input type="hidden" name="problemmode" value="view" />';
530: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
531: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
532: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
533: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 534: $result.='
535: </div>
1.409 albertel 536: '.&Apache::lonxml::message_location().'
1.406 albertel 537: </div>';
1.159 albertel 538: return $result;
1.48 albertel 539: }
540:
1.65 albertel 541: sub initialize_storage {
1.357 albertel 542: my ($given_symb) = @_;
1.353 albertel 543: undef(%Apache::lonhomework::results);
544: undef(%Apache::lonhomework::history);
1.357 albertel 545: my ($symb,$courseid,$domain,$name) =
1.367 albertel 546: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 547:
548: # anonymous users (CODEd exams) have no data
549: if ($name eq 'anonymous'
550: && !defined($domain)) {
551: return;
552: }
553:
1.333 albertel 554: if ($env{'request.state'} eq 'construct'
555: || $symb eq ''
556: || $Apache::lonhomework::type eq 'practice') {
557:
558: my $namespace = $symb || $env{'request.uri'};
559: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 560: ($env{'form.resetdata'} eq &mt('New Problem Variation')
561: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 562: $env{'form.newrandomization'} eq &mt('New Randomization')) {
563: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
564: &Apache::lonxml::debug("Attempt reset");
565: }
1.159 albertel 566: %Apache::lonhomework::history=
1.333 albertel 567: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 568: my ($temp)=keys %Apache::lonhomework::history ;
569: &Apache::lonxml::debug("Return message of $temp");
570: } else {
571: %Apache::lonhomework::history=
572: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
573: }
1.353 albertel 574:
1.159 albertel 575: #ignore error conditions
1.67 albertel 576: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 577: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 578: }
579:
1.435 jms 580: =pod
581:
582: =item finalize_storage()
583:
584: Stores away the result has to a student's environment
585: checks form.grade_ for specific values, other wises stores
586: to the running users environment
587: Will increment totals for attempts, students, and corrects
588: if running user has student role.
589:
590: =cut
591:
592:
1.65 albertel 593: sub finalize_storage {
1.357 albertel 594: my ($given_symb) = @_;
1.159 albertel 595: my $result;
1.289 albertel 596: if (%Apache::lonhomework::results) {
1.323 albertel 597: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
598: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 599: my ($symb,$courseid,$domain,$name) =
1.367 albertel 600: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 601: if ($env{'request.state'} eq 'construct'
602: || $symb eq ''
603: || $Apache::lonhomework::type eq 'practice') {
604: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 605: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 606: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 607: $namespace,'',$domain,$name);
1.159 albertel 608: &Apache::lonxml::debug('Construct Store return message:'.$result);
609: } else {
610: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
611: $symb,$courseid,$domain,$name);
612: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 613: if ($env{'request.role'} =~/^st/) {
614: &store_aggregates($symb,$courseid);
615: }
1.159 albertel 616: }
1.323 albertel 617: } else {
618: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 619: }
1.159 albertel 620: return $result;
1.65 albertel 621: }
622:
1.435 jms 623: =pod
624:
625: item store_aggregates()
626:
627: Sends hash of values to be incremented in nohist_resourcetracker.db
628: for the course. Increments total number of attempts, unique students
629: and corrects for each part for an instance of a problem, as appropriate.
630:
631: =cut
632:
1.285 raeburn 633: sub store_aggregates {
634: my ($symb,$courseid) = @_;
1.286 albertel 635: my %aggregate;
636: my @parts;
1.288 albertel 637: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
638: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 639: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 640: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 641: push(@parts, $1);
1.285 raeburn 642: }
643: }
1.286 albertel 644: foreach my $part (@parts) {
645: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
646: eq 'APPROX_ANS' ||
647: $Apache::lonhomework::results{'resource.'.$part.'.award'}
648: eq 'EXACT_ANS') {
1.287 albertel 649: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 650: }
1.286 albertel 651: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 652: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 653: } else {
1.293 albertel 654: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 655: if ($last_reset) {
1.293 albertel 656: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 657: $aggregate{$symb."\0".$part."\0users"} = 1;
658: }
659: }
1.285 raeburn 660: }
1.287 albertel 661: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 662: }
1.292 raeburn 663: if (keys (%aggregate) > 0) {
1.289 albertel 664: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 665: $cdomain,$cname);
666: }
667: }
1.289 albertel 668:
1.65 albertel 669: sub checkout_msg {
1.211 albertel 670: my %lt=&Apache::lonlocal::texthash(
671: 'resource'=>'The resource needs to be checked out',
672: '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.',
673: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
674: 'checkout'=>'Check out Exam for Viewing',
675: 'checkout?'=>'Check out Exam?');
1.352 albertel 676: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 677: return (<<ENDCHECKOUT);
1.211 albertel 678: <h2>$lt{'resource'}</h2>
679: <p>$lt{'id_expln'}</p>
1.444.4.1 raeburn 680: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 681: <form name="checkout" method="post" action="$uri">
1.91 albertel 682: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 683: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 684: </form>
685: ENDCHECKOUT
686: }
687:
1.252 albertel 688: sub firstaccess_msg {
1.253 albertel 689: my ($time,$symb)=@_;
1.414 albertel 690: my $result;
691: my @interval=&Apache::lonnet::EXT("resource.0.interval");
692: if ($interval[1] eq 'map') {
693: my ($map)=&Apache::lonnet::decode_symb($symb);
694: my $foldertitle=&Apache::lonnet::gettitle($map);
695:
696: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 697: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
698: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
699: ,$foldertitle,$time)."</h2>";
1.414 albertel 700: } elsif ($interval[1] eq 'course') {
701: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 702: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
703: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
704: ,$course,$time)."</h2>";
1.414 albertel 705: } else {
706: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 707: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
708: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
709: ,$title,$time)."</h2>";
1.414 albertel 710: }
1.352 albertel 711: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 712: my $buttontext = &mt('Show Resource');
713: my $timertext = &mt('Start Timer?');
1.414 albertel 714: $result .= (<<ENDCHECKOUT);
1.444 bisitz 715: <form name="markaccess" method="post" action="$uri">
1.252 albertel 716: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 717: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 718: </form>
719: ENDCHECKOUT
1.414 albertel 720: return $result;
1.252 albertel 721: }
722:
1.204 albertel 723: sub init_problem_globals {
724: my ($type)=@_;
725: #initialize globals
1.308 foxr 726: # For problems, we start out in part 0 (outside a <part> tag).
727: # and part 0 is used to describe the main body of the <problem>
728: #
1.204 albertel 729: if ($type eq 'problem') {
730: $Apache::inputtags::part='0';
731: @Apache::inputtags::partlist=('0');
1.405 albertel 732: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 733: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 734:
1.266 albertel 735: } elsif ($type eq 'library') {
1.204 albertel 736: $Apache::inputtags::part='';
737: @Apache::inputtags::partlist=();
1.405 albertel 738: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 739: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 740:
1.304 albertel 741: } elsif ($type eq 'Task') {
742: $Apache::inputtags::part='0';
743: @Apache::inputtags::partlist=('0');
1.405 albertel 744: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 745: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 746: }
747: @Apache::inputtags::responselist = ();
748: @Apache::inputtags::importlist = ();
749: @Apache::inputtags::previous=();
750: @Apache::inputtags::previous_version=();
751: $Apache::structuretags::printanswer='No';
752: @Apache::structuretags::whileconds=();
753: @Apache::structuretags::whilebody=();
754: @Apache::structuretags::whileline=();
755: $Apache::lonhomework::scantronmode=0;
756: undef($Apache::lonhomework::name);
1.358 albertel 757: undef($Apache::lonhomework::default_type);
758: undef($Apache::lonhomework::type);
1.204 albertel 759: }
760:
761: sub reset_problem_globals {
762: my ($type)=@_;
763: undef(%Apache::lonhomework::history);
764: undef(%Apache::lonhomework::results);
765: undef($Apache::inputtags::part);
1.208 albertel 766: #don't undef this, lonhomework.pm takes care of this, we use this to
767: #detect if we try to do 2 problems in one file
768: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 769: undef($Apache::lonhomework::name);
1.358 albertel 770: undef($Apache::lonhomework::default_type);
771: undef($Apache::lonhomework::type);
772: undef($Apache::lonhomework::scantronmode);
773: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 774: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 775: }
776:
1.241 albertel 777: sub set_problem_state {
1.240 albertel 778: my ($part)=@_;
1.284 albertel 779: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 780: $Apache::lonhomework::history{"resource.$part.solved"}=
781: 'correct_by_student';
782: }
783: }
784:
1.241 albertel 785: sub get_problem_status {
786: my ($part)=@_;
1.267 albertel 787: my $problem_status;
1.284 albertel 788: if ($env{'request.state'} eq 'construct' &&
789: defined($env{'form.problemstatus'})) {
790: $problem_status=$env{'form.problemstatus'};
1.267 albertel 791: } else {
792: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
793: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 794: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 795: }
796: return $problem_status;
797: }
798:
1.9 albertel 799: sub start_problem {
1.326 albertel 800: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 801:
1.311 foxr 802: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 803: if (!$Apache::lonxml::metamode) {
804: &Apache::lonxml::startredirection();
805: }
1.311 foxr 806:
1.308 foxr 807: # Problems don't nest and we don't allow more than one <problem> in
808: # a .problem file.
809: #
1.184 albertel 810: if ( $Apache::inputtags::part ne '' ||
811: $Apache::lonhomework::parsing_a_problem) {
812: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 813: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 814: return '';
815: }
1.184 albertel 816:
817: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 818: &init_problem_globals('problem');
1.166 albertel 819:
1.284 albertel 820: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 821: $Apache::lonhomework::scantronmode=1;
822: }
1.161 albertel 823:
1.159 albertel 824: if ($target ne 'analyze') {
1.415 raeburn 825: my $type = &Apache::lonnet::EXT('resource.0.type');
826: $Apache::lonhomework::type=$type;
1.284 albertel 827: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 828: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 829: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 830: }
1.332 albertel 831: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 832: }
1.164 albertel 833: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 834: my $uri=$env{'request.uri'};
1.159 albertel 835: if ($uri=~/\.(\w+)$/) {
836: $Apache::lonhomework::type=$1;
837: &Apache::lonxml::debug("Using type of $1");
838: } else {
839: $Apache::lonhomework::type='problem';
840: &Apache::lonxml::debug("Using default type, problem, :$uri:");
841: }
1.87 albertel 842: }
1.301 albertel 843: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 844:
1.363 albertel 845: &initialize_storage();
1.389 albertel 846: if ($target ne 'analyze'
847: && $env{'request.state'} eq 'construct') {
848: &set_problem_state('0');
849: }
850:
1.366 albertel 851: if ($target eq 'web') {
852: &Apache::lonxml::debug(" grading history ");
853: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
854: }
1.363 albertel 855:
1.159 albertel 856: #added vars to the scripting enviroment
1.213 albertel 857: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 858: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 859: &Apache::run::run($expression,$safeeval);
1.159 albertel 860: my $status;
861: my $accessmsg;
862:
1.343 albertel 863: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 864: my ($result,$form_tag_start);
1.354 albertel 865: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
866: || $target eq 'edit') {
1.350 albertel 867: ($result,$form_tag_start) =
868: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
869: $name);
870: }
871:
1.284 albertel 872: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 873:
874: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
875: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
876: $target eq 'tex') {
877: #handle exam checkout
878: if ($Apache::lonhomework::type eq 'exam') {
879: my $token=
880: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 881: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 882: $token=&Apache::lonxml::maketoken();
883: $Apache::lonhomework::history{"resource.0.outtoken"}=
884: $token;
885: }
1.343 albertel 886: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 887: }
1.284 albertel 888: if ($env{'form.markaccess'}) {
1.414 albertel 889: my @interval=&Apache::lonnet::EXT("resource.0.interval");
890: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 891: }
1.159 albertel 892: #handle rand seed in construction space
893: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 894: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 895: if ($env{'request.state'} ne "construct" &&
896: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 897: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.444.4.2.2.1 (www 898:: $rndseed.'" />';
1.444.4.2.2.2! (raeburn 899:: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 900:: $form_tag_start .= '<input type="submit" name="resetdata"
! 901:: value="'.&mt('New Problem Variation').'" />';
! 902:: }
1.334 albertel 903: if (exists($env{'form.username'})) {
904: $form_tag_start.=
1.164 albertel 905: '<input type="hidden" name="username"
1.284 albertel 906: value="'.$env{'form.username'}.'" />';
1.334 albertel 907: }
1.444.4.2.2.2! (raeburn 908:: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 909:: if ($env{'request.role.adv'}) {
! 910:: $form_tag_start.= ' <label class="LC_nobreak">'
! 911:: .'<input type="checkbox" name="showallfoils"';
! 912:: if (defined($env{'form.showallfoils'})) {
! 913:: $form_tag_start.=' checked="checked"';
! 914:: }
! 915:: $form_tag_start.= ' /> '
! 916:: .&mt('Show All Foils')
! 917:: .'</label>';
! 918:: }
! 919:: }
1.417 www 920: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 921: $form_tag_start.=&practice_problem_header();
1.417 www 922: }
1.444.4.2.2.2! (raeburn 923:: unless ($env{'request.gcicontext'} eq 'buildtest') {
! 924:: $form_tag_start.='<hr />';
! 925:: }
1.162 albertel 926: }
1.324 albertel 927:
928: ($status,$accessmsg,my $slot_name,my $slot) =
929: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 930: push (@Apache::inputtags::status,$status);
1.324 albertel 931:
1.159 albertel 932: my $expression='$external::datestatus="'.$status.'";';
933: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
934: &Apache::run::run($expression,$safeeval);
935: &Apache::lonxml::debug("Got $status");
1.324 albertel 936:
1.159 albertel 937: if (( $status eq 'CLOSED' ) ||
938: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 939: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 940: ( $status eq 'BANNED') ||
1.216 albertel 941: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 942: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 943: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 944: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
945: $style);
1.159 albertel 946: if ( $target eq "web" ) {
1.343 albertel 947: my $msg;
1.159 albertel 948: if ($status eq 'UNAVAILABLE') {
1.245 albertel 949: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 950: } elsif ($status eq 'NOT_IN_A_SLOT') {
951: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 952: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 953: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 954: }
1.216 albertel 955: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 956: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 957: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 958: $msg.=&checkout_msg();
1.252 albertel 959: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 960: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 961: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 962: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 963: }
964: $result.=$msg.'<br />';
965: } elsif ($target eq 'tex') {
1.332 albertel 966: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
967: : '\begin{minipage}{\textwidth}';
1.443 foxr 968: $result.='\noindent \vskip 1 mm '.
1.332 albertel 969: $startminipage.'\vskip 0 mm';
1.159 albertel 970: if ($status eq 'UNAVAILABLE') {
1.211 albertel 971: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 972: } else {
1.211 albertel 973: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 974: }
975: }
1.324 albertel 976: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 977: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
978: $style);
1.324 albertel 979: if ($target eq 'web') {
1.375 albertel 980: $result .=
981: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 982: } elsif ($target eq 'grade') {
983: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
984: 'problem');
985: }
1.159 albertel 986: } elsif ($target eq 'web') {
1.360 albertel 987: if ($status eq 'CAN_ANSWER'
988: && $slot_name ne ''
989: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
990: # unproctored slot access, self checkin
991: &Apache::bridgetask::check_in('problem',undef,undef,
992: $slot_name);
993: }
1.368 albertel 994: $result.="\n $form_tag_start \t".
1.227 albertel 995: '<input type="hidden" name="submitted" value="yes" />';
996: # create a page header and exit
1.284 albertel 997: if ($env{'request.state'} eq "construct") {
998: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 999: if ($Apache::lonhomework::type eq 'practice') {
1000: $result.= '<input type="submit" name="resetdata" '.
1001: 'value="'.&mt('New Problem Variation').'" />'.
1002: &practice_problem_header().'<hr />';
1003: }
1.227 albertel 1004: }
1005: # if we are viewing someone else preserve that info
1.284 albertel 1006: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1007: foreach my $field ('symb','courseid','domain','username') {
1008: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1009: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1010: }
1011: }
1012: } elsif ($target eq 'tex') {
1.319 foxr 1013: $result .= 'INSERTTEXFRONTMATTERHERE';
1014:
1.99 sakharuk 1015: }
1.159 albertel 1016: } elsif ($target eq 'edit') {
1.343 albertel 1017: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1018: $Apache::lonxml::warnings_error_header=
1019: &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 1020: my $temp=&Apache::edit::insertlist($target,$token);
1021: $result.=$temp;
1022: } elsif ($target eq 'modified') {
1023: $result=$token->[4];
1024: } else {
1025: # page_start returned a starting result, delete it if we don't need it
1026: $result = '';
1.99 sakharuk 1027: }
1.159 albertel 1028: return $result;
1.9 albertel 1029: }
1030:
1031: sub end_problem {
1.159 albertel 1032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1033: my $result;
1.310 foxr 1034:
1.321 albertel 1035: if (!$Apache::lonxml::metamode) {
1036: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1037: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1038: }
1.319 foxr 1039:
1040: if ($target eq 'tex') {
1.321 albertel 1041: # Figure out the front matter and replace the
1042: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1043: # this in end_problem because whether or not we display due
1044: # dates depends on whether due dates have already been
1045: # displayed in the problem parts.
1046:
1.319 foxr 1047: my $frontmatter = '';
1048: my $startminipage = '';
1049: if (not $env{'form.problem_split'}=~/yes/) {
1050: $startminipage = '\begin{minipage}{\textwidth}';
1051: }
1052: my $id = $Apache::inputtags::part;
1053: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1054: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1055: my @packages = split /,/,$packages;
1056: my $allow_print_points = 0;
1057: foreach my $partial_key (@packages) {
1058: if ($partial_key=~m/^part_0$/) {
1059: $allow_print_points=1;
1060: }
1061: }
1062: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1063: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1064: if (lc($env{'course.'.$env{'request.course.id'}.
1065: '.disableexampointprint'}) eq 'yes') {
1066: $allow_print_points=0;
1067: }
1068: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1069: 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 1070: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1071: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1072:
1073: # Figure out what the due date is and if we need to print
1074: # it in the problem header. We have been logging the
1075: # last due date written to file.
1076:
1.444.4.1 raeburn 1077: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1.319 foxr 1078: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.444.4.1 raeburn 1079: my $duedate_text = &mt('Due date: [_1]'
1080: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1081: my $temp_file;
1082: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1083:
1084: # Figure out what the last printed due date is or set it
1085: # to the epoch if no duedates have been printed.
1086:
1087: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1088: if (-e $filename) {
1089: $temp_file = Apache::File->new($filename);
1090: my @due_file = <$temp_file>;
1091: $due_file_content = $due_file[$#due_file];
1092: chomp $due_file_content;
1093: }
1094:
1095: # We display the due date iff it is not the same as the last
1096: # duedate in problem header ($due_file_content), and
1097: # none of our parts displayed a duedate.
1098: #
1099: my $parts_with_displayduedate;
1100: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1101: $parts_with_displayduedate =
1102: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1103: } else {
1104: $parts_with_displayduedate = 0;
1105: }
1106: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1107: $temp_file = Apache::File->new('>'.$filename);
1108: print $temp_file "$duetime\n";
1109: if (not $env{'request.symb'} =~ m/\.page_/) {
1110: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1111: $frontmatter .= $begin_doc.
1.444.4.1 raeburn 1112: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1113: } else {
1114: $frontmatter.= $begin_doc.$toc_line;
1115: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1116: }
1117: } else {
1.444.4.1 raeburn 1118: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1119: }
1120: } else {
1121: if (not $env{'request.symb'} =~ m/\.page_/) {
1122: $frontmatter .= $begin_doc.$toc_line;
1123: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1124: } else {
1.381 albertel 1125: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1126: }
1127: }
1128: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1129: }
1130:
1.159 albertel 1131: my $status=$Apache::inputtags::status['-1'];
1132: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1133: $target eq 'tex') {
1.249 albertel 1134: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1135: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1136: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1137: &Apache::inputtags::grade;
1.324 albertel 1138: } elsif ($status eq 'NEEDS_CHECKIN') {
1139: # no need to grade, and don't want to hide data
1.249 albertel 1140: } else {
1141: # move any submission data to .hidden
1142: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1143: }
1.159 albertel 1144: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1145: $Apache::inputtags::part eq '0' &&
1.252 albertel 1146: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1147: # if part is zero, no <part>s existed, so we need show the current
1148: # grading status
1149: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1150: $result.= $gradestatus;
1151: }
1152: if (
1.284 albertel 1153: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1154: ($target eq 'answer') || ($target eq 'tex')
1155: ) {
1.227 albertel 1156: if ($target ne 'tex' &&
1.284 albertel 1157: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1158: $result.="</form>";
1.348 albertel 1159: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1160: }
1161: if ($target eq 'web') {
1.346 albertel 1162: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1163: } elsif ($target eq 'tex') {
1.178 sakharuk 1164: my $endminipage = '';
1.284 albertel 1165: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1166: $endminipage = '\end{minipage}';
1167: }
1.284 albertel 1168: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1169: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1170: } else {
1.262 sakharuk 1171: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1172: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1173: $result .= $endminipage.'\end{document} ';
1174: } else {
1.382 albertel 1175: $result .= $endminipage;
1.262 sakharuk 1176: }
1.159 albertel 1177: }
1178: }
1179: }
1180: if ($target eq 'grade') {
1181: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1182: &finalize_storage();
1183: }
1.284 albertel 1184: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1185: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1186: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1187: # normally we get it from above, but in CSTR
1.172 albertel 1188: # we always show answer mode too.
1.159 albertel 1189: }
1190: } elsif ($target eq 'meta') {
1191: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1192: @Apache::inputtags::response=();
1.159 albertel 1193: $result=&Apache::response::mandatory_part_meta;
1194: }
1.215 albertel 1195: $result.=&Apache::response::meta_part_order();
1.258 albertel 1196: $result.=&Apache::response::meta_response_order();
1.159 albertel 1197: } elsif ($target eq 'edit') {
1198: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1199: $result .= &problem_edit_footer();
1.320 albertel 1200: } elsif ($target eq 'modified') {
1201: $result .= $token->[2];
1.159 albertel 1202: }
1.155 albertel 1203:
1.284 albertel 1204: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1205: &Apache::inputtags::check_for_duplicate_ids();
1206: }
1.204 albertel 1207:
1208: &reset_problem_globals('problem');
1.159 albertel 1209:
1210: return $result;
1.48 albertel 1211: }
1212:
1.108 albertel 1213:
1.48 albertel 1214: sub start_library {
1.159 albertel 1215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1216: my ($result,$form_tag_start);
1.371 albertel 1217: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1218: &init_problem_globals('library');
1219: $Apache::lonhomework::type='problem';
1220: }
1.159 albertel 1221: if ($target eq 'edit') {
1.343 albertel 1222: ($result,$form_tag_start)=
1223: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1224: 'Edit');
1225: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1226: my $temp=&Apache::edit::insertlist($target,$token);
1227: $result.=$temp;
1228: } elsif ($target eq 'modified') {
1229: $result=$token->[4];
1.340 albertel 1230: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1231: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1232: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1233: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1234: ($result,$form_tag_start)=
1235: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1236: $name);
1.159 albertel 1237: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1238: $result.=" \n $form_tag_start".
1.159 albertel 1239: '<input type="hidden" name="submitted" value="yes" />';
1240: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1241: if ($Apache::lonhomework::type eq 'practice') {
1242: $result.= '<input type="submit" name="resetdata" '.
1243: 'value="'.&mt('New Problem Variation').'" />'.
1244: &practice_problem_header().'<hr />';
1245: }
1.159 albertel 1246: }
1247: return $result;
1.48 albertel 1248: }
1249:
1250: sub end_library {
1.159 albertel 1251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1252: my $result='';
1253: if ($target eq 'edit') {
1254: $result=&problem_edit_footer();
1.371 albertel 1255: } elsif ($target eq 'web'
1256: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1257: && $env{'request.state'} eq "construct") {
1.349 albertel 1258: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1259: }
1.371 albertel 1260: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1261: &reset_problem_globals('library');
1262: }
1.159 albertel 1263: return $result;
1.197 www 1264: }
1265:
1266: sub start_definetag {
1.326 albertel 1267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1268:
1269: my $result;
1270:
1271: my $name = $token->[2]->{'name'};
1.326 albertel 1272: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1273: if ($target eq 'web') {
1274: if ($name=~/^\//) {
1275: $result=
1276: '<br /><table class="LC_sty_end"><tr><th>'.
1277: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1278: } else {
1279: $result=
1280: '<br /><table class="LC_sty_begin"><tr><th>'.
1281: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1282: }
1283: $skip = &HTML::Entities::encode($skip, '<>&"');
1284: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1285: }
1286: return $result;
1287: }
1288:
1289: sub end_definetag {
1290: return '';
1.1 albertel 1291: }
1292:
1293: sub start_block {
1.201 albertel 1294: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1295:
1296: my $result;
1.1 albertel 1297:
1.339 albertel 1298: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1299: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1300: my $code = $token->[2]->{'condition'};
1.385 albertel 1301: if (defined($code) && $code ne '') {
1.137 albertel 1302: if (!$Apache::lonxml::default_homework_loaded) {
1303: &Apache::lonxml::default_homework_load($safeeval);
1304: }
1.131 albertel 1305: $result = &Apache::run::run($code,$safeeval);
1306: &Apache::lonxml::debug("block :$code: returned :$result:");
1307: } else {
1308: $result='1';
1309: }
1310: if ( ! $result ) {
1.201 albertel 1311: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1312: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1313: }
1314: $result='';
1315: } elsif ($target eq 'edit') {
1316: $result .=&Apache::edit::tag_start($target,$token);
1317: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1318: $token,40);
1319: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1320: } elsif ($target eq 'modified') {
1321: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1322: $safeeval,'condition');
1323: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1324: }
1.131 albertel 1325: return $result;
1.1 albertel 1326: }
1327:
1328: sub end_block {
1.167 www 1329: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1330: my $result;
1331: if ($target eq "edit") {
1332: $result.= &Apache::edit::tag_end($target,$token,'');
1333: }
1334: return $result;
1335: }
1336:
1337: sub start_languageblock {
1.201 albertel 1338: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1339:
1340: my $result;
1341:
1.339 albertel 1342: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1343: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1344: my $include = $token->[2]->{'include'};
1345: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1346: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1347: # This should not even happen, since we should at least have the server language
1.398 www 1348: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1349: # Now loop over all languages in order of preference
1350: foreach my $preferred_language (@preferred_languages) {
1.394 www 1351: # If the languageblock has no arguments, show the contents
1.399 www 1352: $result=1;
1353: my $found=0;
1.394 www 1354: # Do we have an include argument?
1.398 www 1355: if ($include) {
1.394 www 1356: # If include is specified, by default, don't render the block
1.399 www 1357: $result=0;
1.398 www 1358: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1359: # ... but if my preferred language is included, render it
1.398 www 1360: if ($included_language eq $preferred_language) {
1.399 www 1361: $result=1;
1362: $found=1;
1.398 www 1363: }
1364: }
1365: }
1.394 www 1366: # Do we have an exclude argument?
1.398 www 1367: if ($exclude) {
1.399 www 1368: $result=1;
1.398 www 1369: foreach my $excluded_language (split(/\,/,$exclude)) {
1370: if ($excluded_language eq $preferred_language) {
1.399 www 1371: $result=0;
1372: $found=1;
1.398 www 1373: }
1374: }
1375: }
1.399 www 1376: if ($found) { last; }
1.398 www 1377: }
1.201 albertel 1378: if ( ! $result ) {
1379: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1380: $style);
1381: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1382: }
1383: $result='';
1.167 www 1384: } elsif ($target eq 'edit') {
1385: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1386: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1387: $token,40);
1.211 albertel 1388: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1389: $token,40);
1390: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1391: } elsif ($target eq 'modified') {
1392: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1393: $safeeval,'include',
1394: 'exclude');
1.167 www 1395: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1396: }
1397: return $result;
1398: }
1399:
1400: sub end_languageblock {
1.170 www 1401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1402: my $result;
1.201 albertel 1403: if ($target eq "edit") {
1.170 www 1404: $result.= &Apache::edit::tag_end($target,$token,'');
1405: }
1406: return $result;
1407: }
1408:
1.397 albertel 1409: {
1410: my %available_texts;
1411: sub start_translated {
1412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1413: &Apache::lonxml::register('Apache::structuretags',('lang'));
1414: undef(%available_texts);
1415: }
1416:
1417: sub end_translated {
1418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1419: my $result;
1420: #show the translation on viewable targets
1421: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1422: # or non-viewable targets, if it's embedded in something that
1423: # wants the output
1424: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1425: && &Apache::lonxml::in_redirection() ) ) {
1426: my @possibilities = keys(%available_texts);
1427: my $which =
1428: &Apache::loncommon::languages(\@possibilities) || 'default';
1429: $result = $available_texts{$which};
1430: }
1431: undef(%available_texts);
1432: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1433: return $result;
1434: }
1435:
1436:
1437: sub start_lang {
1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1439: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1440: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1441: &Apache::lonxml::startredirection();
1442: }
1443: return '';
1444: }
1445:
1446: sub end_lang {
1447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1448: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1449: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1450: my $result = &Apache::lonxml::endredirection();
1451: my $which = &Apache::lonxml::get_param('which',$parstack,
1452: $safeeval);
1.431 raeburn 1453: if ($which=~/\w/) {
1454: $available_texts{$which} = $result;
1455: }
1456: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1457: $safeeval);
1458: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1459: if ($language=~/\w/) {
1460: $available_texts{$language} = $result;
1461: }
1.427 bisitz 1462: }
1463:
1.397 albertel 1464: }
1465: return '';
1466: }
1467: }
1468:
1.170 www 1469: sub start_instructorcomment {
1.201 albertel 1470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1471:
1472: my $result;
1473:
1.339 albertel 1474: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1475: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1476: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1477: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1478: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1479: $parser,$style);
1.170 www 1480: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1481: }
1482: $result='';
1483: } elsif ($target eq 'edit') {
1484: $result .=&Apache::edit::tag_start($target,$token);
1485: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1486: }
1487: return $result;
1488: }
1489:
1490: sub end_instructorcomment {
1.159 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1492: my $result;
1493: if ($target eq "edit") {
1494: $result.= &Apache::edit::tag_end($target,$token,'');
1495: }
1496: return $result;
1.4 tsai 1497: }
1498:
1499: sub start_while {
1.326 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1501:
1.160 albertel 1502: my $result;
1.339 albertel 1503: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1504: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1505: my $code = $token->[2]->{'condition'};
1.4 tsai 1506:
1.160 albertel 1507: push( @Apache::structuretags::whileconds, $code);
1508: if (!$Apache::lonxml::default_homework_loaded) {
1509: &Apache::lonxml::default_homework_load($safeeval);
1510: }
1511: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1512: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1513: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1514: push( @Apache::structuretags::whileline, $token->[5]);
1515: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1516: if ( $result ) {
1517: &Apache::lonxml::newparser($parser,\$bodytext);
1518: }
1519: } elsif ($target eq 'edit') {
1520: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1521: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1522: $token,40);
1523: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1524: } elsif ($target eq 'modified') {
1525: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1526: $safeeval,'condition');
1527: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1528: }
1.160 albertel 1529: return $result;
1.4 tsai 1530: }
1531:
1532: sub end_while {
1.159 albertel 1533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1534: my $result;
1535:
1.339 albertel 1536: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1537: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1538: my $code = pop(@Apache::structuretags::whileconds);
1539: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1540: my $line = pop(@Apache::structuretags::whileline);
1541: my $return = &Apache::run::run($code,$safeeval);
1542: my $starttime=time;
1543: my $error=0;
1544: while ($return) {
1545: if (time-$starttime >
1546: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1547: $return = 0; $error=1; next;
1.161 albertel 1548: }
1549: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1550: if ($target eq 'grade' || $target eq 'answer' ||
1551: $target eq 'analyze') {
1552: # grade/answer/analyze should produce no output but if we
1553: # are redirecting, the redirecter should know what to do
1554: # with the output
1555: if (!$Apache::lonxml::redirection) { undef($result); }
1556: }
1.161 albertel 1557: $return = &Apache::run::run($code,$safeeval);
1558: }
1559: if ($error) {
1.430 bisitz 1560: &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 1561: }
1562: } elsif ($target eq "edit") {
1563: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1564: }
1.160 albertel 1565: return $result;
1.1 albertel 1566: }
1.6 tsai 1567:
1.160 albertel 1568: # <randomlist show="1">
1.6 tsai 1569: # <tag1>..</tag1>
1570: # <tag2>..</tag2>
1571: # <tag3>..</tag3>
1.160 albertel 1572: # ...
1.6 tsai 1573: # </randomlist>
1574: sub start_randomlist {
1.326 albertel 1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1576: my $result;
1.339 albertel 1577: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1578: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1579: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1580: my $b_parser= HTML::LCParser->new(\$body);
1581: $b_parser->xml_mode(1);
1582: $b_parser->marked_sections(1);
1.159 albertel 1583: my $b_tok;
1584: my @randomlist;
1585: my $list_item;
1586: while($b_tok = $b_parser->get_token() ) {
1587: if($b_tok->[0] eq 'S') { # start tag
1588: # get content of the tag until matching end tag
1589: # get all text upto the matching tag
1590: # and push the content into @randomlist
1591: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1592: $b_parser);
1593: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1594: push(@randomlist,$list_item);
1595: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1596: # $list_item</b>";
1597: }
1598: if($b_tok->[0] eq 'T') { # text
1599: # what to do with text in between tags?
1600: # print "<b>TEXT $b_tok->[1]</b><br />";
1601: }
1602: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1603: # print "<b>END-TAG $b_tok->[1]</b><br />";
1604: # }
1605: }
1.303 albertel 1606: if (@randomlist) {
1607: my @idx_arr = (0 .. $#randomlist);
1608: &Apache::structuretags::shuffle(\@idx_arr);
1609: my $bodytext = '';
1610: my $show=$#randomlist;
1611: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1612: $showarg--;
1613: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1614: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1615: my @currlist;
1616: my $part = $Apache::inputtags::part;
1617: if ($part ne '') {
1618: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1619: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1620: if (!(grep(/^\Q$part\E$/,@currlist))) {
1621: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1622: }
1623: } else {
1624: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1625: }
1626: }
1627: }
1.303 albertel 1628: for(0 .. $show) {
1629: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1630: }
1631: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1632: }
1633: } elsif ($target eq 'edit' ) {
1634: $result .=&Apache::edit::tag_start($target,$token);
1635: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1636: $token,5);
1637: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1638: } elsif ($target eq 'modified' ) {
1639: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1640: $safeeval,'show');
1641: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1642: }
1643: return $result;
1.7 tsai 1644: }
1645:
1646: sub shuffle {
1647: my $a=shift;
1648: my $i;
1.303 albertel 1649: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1650: &Apache::response::pushrandomnumber();
1.159 albertel 1651: for($i=@$a;--$i;) {
1652: my $j=int(&Math::Random::random_uniform() * ($i+1));
1653: next if $i == $j;
1654: @$a[$i,$j] = @$a[$j,$i];
1655: }
1.251 albertel 1656: &Apache::response::poprandomnumber();
1.7 tsai 1657: }
1.6 tsai 1658: }
1659:
1660: sub end_randomlist {
1.159 albertel 1661: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1662: my $result;
1663: if ($target eq 'edit' ) {
1664: $result=&Apache::edit::tag_end($target,$token,
1665: 'End Randomly Parsed Block');
1666: }
1667: return $result;
1.6 tsai 1668: }
1669:
1.283 albertel 1670: sub ordered_show_check {
1671: my $last_part=$Apache::inputtags::partlist[-2];
1672: my $in_order=
1673: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1674: my $in_order_show=1;
1675: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1676: $in_order_show=&Apache::response::check_status($last_part);
1677: }
1678: return $in_order_show;
1679: }
1680:
1.11 albertel 1681: sub start_part {
1.326 albertel 1682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1683: if (!$Apache::lonxml::metamode) {
1684: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1685: # duedates.
1686: }
1.159 albertel 1687: my $result='';
1.386 albertel 1688: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1689: $Apache::inputtags::part=$id;
1.177 albertel 1690: push(@Apache::inputtags::partlist,$id);
1691: @Apache::inputtags::response=();
1.159 albertel 1692: @Apache::inputtags::previous=();
1693: @Apache::inputtags::previous_version=();
1.405 albertel 1694: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1695: &Apache::response::reset_params();
1696:
1.159 albertel 1697: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1698: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1699: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1700: my $in_order_show=&ordered_show_check();
1.214 albertel 1701: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1702: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1703: &Apache::run::run($expression,$safeeval);
1.159 albertel 1704:
1705: if ($target eq 'meta') {
1.224 www 1706: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1707: return &Apache::response::mandatory_part_meta.
1708: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1709: } elsif ($target eq 'web' || $target eq 'grade' ||
1710: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1711: if ($hidden || !$in_order_show) {
1.326 albertel 1712: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1713: } else {
1714: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1715: push (@Apache::inputtags::status,$status);
1716: my $expression='$external::datestatus="'.$status.'";';
1717: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1718: &Apache::run::run($expression,$safeeval);
1.284 albertel 1719: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1720: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1721: }
1.216 albertel 1722: if (( $status eq 'CLOSED' ) ||
1723: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1724: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1725: ( $status eq 'BANNED') ||
1726: ( $status eq 'UNAVAILABLE') ||
1727: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1728: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1729: $style);
1.159 albertel 1730: if ( $target eq "web" ) {
1.211 albertel 1731: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1732: } elsif ( $target eq 'tex' ) {
1.284 albertel 1733: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1734: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1735: } else {
1.211 albertel 1736: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1737: }
1.159 albertel 1738: }
1739: } else {
1740: if ($target eq 'tex') {
1.284 albertel 1741: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1742: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1743: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1744: } else {
1745: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1746: }
1.195 sakharuk 1747: }
1.159 albertel 1748: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1749: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1750: my @allkeys = split /,/,$allkeys;
1751: my $allow_print_points = 0;
1752: foreach my $partial_key (@allkeys) {
1.230 albertel 1753: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1754: if ($1 ne '0') {$allow_print_points=1;}
1755: }
1756: }
1.275 albertel 1757: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1758: if (defined($maxtries) && $maxtries < 0) {
1759: $allow_print_points=0;
1760: }
1.302 albertel 1761: if (lc($env{'course.'.$env{'request.course.id'}.
1762: '.disableexampointprint'}) eq 'yes') {
1763: $allow_print_points=0;
1764: }
1.222 sakharuk 1765: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1766: } elsif ($target eq 'web') {
1.356 www 1767: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1768: }
1769: }
1770: }
1771: } elsif ($target eq 'edit') {
1772: $result.=&Apache::edit::tag_start($target,$token);
1773: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1774: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1775: ' '.
1776: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1777: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1778: } elsif ($target eq 'modified') {
1779: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1780: $safeeval,'id','display');
1.159 albertel 1781: if ($constructtag) {
1.225 albertel 1782: #limiting ids to only letters numbers, and space
1.224 www 1783: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1784: $result = &Apache::edit::rebuild_tag($token);
1785: }
1786: }
1787: return $result;
1.11 albertel 1788: }
1789:
1790: sub end_part {
1.159 albertel 1791: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1792: &Apache::lonxml::debug("in end_part $target ");
1793: my $status=$Apache::inputtags::status['-1'];
1794: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1795: my $in_order_show=&ordered_show_check();
1.321 albertel 1796: my $result;
1797: if (!$Apache::lonxml::metamode) {
1798: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1799: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1800: }
1.312 albertel 1801: if ($target eq 'grade') {
1.249 albertel 1802: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1803: !$hidden && $in_order_show) {
1.311 foxr 1804: $result.=&Apache::inputtags::grade;
1.249 albertel 1805: } else {
1806: # move any submission data to .hidden
1807: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1808: }
1.283 albertel 1809: } elsif (($target eq 'web' || $target eq 'tex') &&
1810: !$hidden && $in_order_show) {
1.159 albertel 1811: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1812: $target);
1.212 albertel 1813: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1814: $gradestatus='';
1815: }
1.311 foxr 1816: $result.=$gradestatus;
1.265 sakharuk 1817: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1818: } elsif ($target eq 'edit') {
1.311 foxr 1819: $result.=&Apache::edit::end_table();
1.322 albertel 1820: } elsif ($target eq 'modified') {
1821: $result .= $token->[2];
1.159 albertel 1822: }
1823: pop @Apache::inputtags::status;
1824: $Apache::inputtags::part='';
1.295 albertel 1825: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1826: return $result;
1.11 albertel 1827: }
1.1 albertel 1828:
1.25 albertel 1829: sub start_preduedate {
1.326 albertel 1830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1831: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1832: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1833: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1834: if (!$Apache::lonhomework::scantronmode &&
1835: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1836: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1837: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1838: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1839: }
1.24 albertel 1840: }
1.159 albertel 1841: return '';
1.24 albertel 1842: }
1843:
1.25 albertel 1844: sub end_preduedate {
1.159 albertel 1845: return '';
1.24 albertel 1846: }
1847:
1.369 foxr 1848: # In all the modes where <postanswerdate> text is
1849: # displayable, all we do is eat up the text between the start/stop
1850: # tags if the conditions are not right to display it.
1.25 albertel 1851: sub start_postanswerdate {
1.326 albertel 1852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1853: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1854: &Apache::lonnet::allowed('pav',
1855: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1856: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1857: $target eq 'tex' ) {
1.300 albertel 1858: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1859: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1860: (($target eq 'tex') && !$pav)) {
1.326 albertel 1861: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1862: }
1863: }
1864: return '';
1.24 albertel 1865: }
1866:
1.25 albertel 1867: sub end_postanswerdate {
1.159 albertel 1868: return '';
1.24 albertel 1869: }
1870:
1.25 albertel 1871: sub start_notsolved {
1.326 albertel 1872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1873: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1874: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1875: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1876: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1877: if ($gradestatus =~ /^correct/ &&
1878: &Apache::response::show_answer()) {
1.159 albertel 1879: &Apache::lonxml::debug("skipping");
1.326 albertel 1880: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1881: }
1.24 albertel 1882: }
1.159 albertel 1883: return '';
1.24 albertel 1884: }
1885:
1.25 albertel 1886: sub end_notsolved {
1.159 albertel 1887: return '';
1.24 albertel 1888: }
1889:
1890: sub start_solved {
1.326 albertel 1891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1892: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1893: $target eq 'tex') {
1894: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1895: if ($gradestatus !~ /^correct/ ||
1896: !&Apache::response::show_answer()) {
1.326 albertel 1897: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1898: }
1.24 albertel 1899: }
1.159 albertel 1900: return '';
1.24 albertel 1901: }
1902:
1903: sub end_solved {
1.248 albertel 1904: return '';
1905: }
1906:
1907: sub start_problemtype {
1.326 albertel 1908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1909: my $result;
1.339 albertel 1910: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1911: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1912: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1913: if (!defined($mode)) { $mode='show'; }
1914: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1915: my $found=0;
1916: foreach my $type (split(',',$for)) {
1917: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1918: }
1919: if ($mode eq 'show' && !$found) {
1.326 albertel 1920: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1921: }
1922: if ($mode eq 'hide' && $found) {
1.326 albertel 1923: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1924: }
1925: } elsif ($target eq 'edit') {
1926: $result .=&Apache::edit::tag_start($target,$token);
1927: $result.=&Apache::edit::select_arg('Mode:','mode',
1928: [['show','Show'],
1929: ['hide','Hide']]
1930: ,$token);
1931: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1932: [ ['exam','Exam/Quiz Problem'],
1933: ['survey','Survey'],
1.428 raeburn 1934: ['problem','Homework Problem'],
1935: ['practice','Practice Problem'] ]
1.248 albertel 1936: ,$token);
1937: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1938: } elsif ($target eq 'modified') {
1939: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1940: $safeeval,'mode','for');
1941: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1942: }
1943: return $result;
1944: }
1945:
1946: sub end_problemtype {
1.159 albertel 1947: return '';
1.24 albertel 1948: }
1.34 albertel 1949:
1950: sub start_startouttext {
1.159 albertel 1951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1952: my @result=(''.'');
1953: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1954:
1955: my $nesting =
1956: &Apache::lonxml::set_state('outtext',
1957: &Apache::lonxml::get_state('outtext')+1);
1958: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1959: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1960: }
1.159 albertel 1961: return (@result);
1.34 albertel 1962: }
1.159 albertel 1963:
1.34 albertel 1964: sub end_startouttext {
1.326 albertel 1965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1966: my $result='';
1967: my $text='';
1968: if ($target eq 'edit') {
1.424 foxr 1969: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1970: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1971: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1972: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1973: .&Apache::edit::deletelist($target,$token)
1974: .'</span></td>';
1.425 raeburn 1975: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1976: $result .= '<td align="left">'
1977: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1978: .'</td>'
1979: .'<td>'
1980: .&Apache::edit::insertlist($target,$token)
1981: .'</td>';
1982: }
1.425 raeburn 1983: $result.='<td align="right" valign="top">' .
1.434 foxr 1984: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1985: &Apache::edit::end_row().
1.362 albertel 1986: &Apache::edit::start_spanning_row()."\n".
1.255 www 1987: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1988: }
1989: if ($target eq 'modified') {
1.219 albertel 1990: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1991: }
1992: if ($target eq 'tex') {
1993: $result .= '\noindent ';
1994: }
1995: return $result;
1.34 albertel 1996: }
1.159 albertel 1997:
1.34 albertel 1998: sub start_endouttext {
1.159 albertel 1999: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2000: my $result='';
2001: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2002: if ($target eq "modified") {
2003: $result='<endouttext />'.
1.377 albertel 2004: &Apache::edit::handle_insertafter('startouttext');
2005: }
1.404 albertel 2006:
2007: my $nesting =
2008: &Apache::lonxml::set_state('outtext',
2009: &Apache::lonxml::get_state('outtext')-1);
2010: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2011: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2012: &Apache::lonxml::set_state('outtext', 0);
2013: }
1.159 albertel 2014: return $result;
1.34 albertel 2015: }
1.159 albertel 2016:
1.34 albertel 2017: sub end_endouttext {
1.159 albertel 2018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2019: my @result=('','');
2020: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2021: return (@result);
1.34 albertel 2022: }
1.159 albertel 2023:
1.45 albertel 2024: sub delete_startouttext {
1.326 albertel 2025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2026: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2027: my $text=$$parser['-1']->get_text("/endouttext");
2028: my $ntoken=$$parser['-1']->get_token();
2029: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2030: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2031: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2032: # they did the last time round
2033: &Apache::lonxml::increasedepth($ntoken);
2034: &Apache::lonxml::decreasedepth($ntoken);
2035: return 1;
1.193 www 2036: }
2037:
2038: sub start_simpleeditbutton {
2039: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2040: my $result='';
1.284 albertel 2041: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2042: ($target eq 'web') &&
1.330 albertel 2043: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2044: my $url=$env{'request.noversionuri'};
1.193 www 2045: $url=~s/\?.*$//;
1.367 albertel 2046: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2047: # Warning make more sense and is more important on edit screen
2048: # $result='<p class="LC_warning">'
2049: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2050: # .&Apache::loncommon::help_open_topic('Caching')
2051: # .'</p>';
2052: $result.=&Apache::lontemplate::start_functionslist()
2053: .&Apache::lontemplate::item_functionslist(
2054: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')
2055: .&Apache::lontemplate::end_functionslist();
2056:
1.193 www 2057: }
2058: return $result;
2059: }
2060:
2061: sub end_simpleeditbutton {
2062: return '';
1.45 albertel 2063: }
1.34 albertel 2064:
1.428 raeburn 2065: sub practice_problem_header {
2066: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2067: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2068: '</span>';
2069: }
2070:
1.1 albertel 2071: 1;
2072: __END__
1.435 jms 2073:
2074: =pod
2075:
2076: =back
2077:
2078: =cut
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