Annotation of loncom/homework/structuretags.pm, revision 1.444.4.1
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.444.4.1! raeburn 4: # $Id: structuretags.pm,v 1.444 2009/05/11 16:51:22 bisitz 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,$extra_head,
238: \%body_args);
239:
240: if (!defined($found{'body'})
241: && $env{'request.state'} ne 'construct'
242: && ($target eq 'web' || $target eq 'webgrade')) {
243:
1.367 albertel 244: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 245: if ($symb eq '' && !$publicuser) {
1.444.4.1! raeburn 246: if ($symb eq '' && !$publicuser) {
! 247: $page_start .= '<p class="LC_info">'
! 248: .&mt('Browsing resource, all submissions are temporary.')
! 249: .'</p>';
! 250: }
1.344 albertel 251: }
252:
1.409 albertel 253: if (!defined($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="'.
898: $rndseed.'" />'.
899: '<input type="submit" name="resetdata"
1.334 albertel 900: value="'.&mt('New Problem Variation').'" />';
901: if (exists($env{'form.username'})) {
902: $form_tag_start.=
1.164 albertel 903: '<input type="hidden" name="username"
1.284 albertel 904: value="'.$env{'form.username'}.'" />';
1.334 albertel 905: }
1.444.4.1! raeburn 906: if ($env{'request.role.adv'}) {
! 907: $form_tag_start.= ' <label class="LC_nobreak">'
! 908: .'<input type="checkbox" name="showallfoils"';
! 909: if (defined($env{'form.showallfoils'})) {
! 910: $form_tag_start.=' checked="checked"';
! 911: }
! 912: $form_tag_start.= ' /> '
! 913: .&mt('Show All Foils')
! 914: .'</label>';
! 915:
1.267 albertel 916: }
1.417 www 917: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 918: $form_tag_start.=&practice_problem_header();
1.417 www 919: }
1.267 albertel 920: $form_tag_start.='<hr />';
1.162 albertel 921: }
1.324 albertel 922:
923: ($status,$accessmsg,my $slot_name,my $slot) =
924: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 925: push (@Apache::inputtags::status,$status);
1.324 albertel 926:
1.159 albertel 927: my $expression='$external::datestatus="'.$status.'";';
928: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
929: &Apache::run::run($expression,$safeeval);
930: &Apache::lonxml::debug("Got $status");
1.324 albertel 931:
1.159 albertel 932: if (( $status eq 'CLOSED' ) ||
933: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 934: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 935: ( $status eq 'BANNED') ||
1.216 albertel 936: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 937: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 938: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 939: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
940: $style);
1.159 albertel 941: if ( $target eq "web" ) {
1.343 albertel 942: my $msg;
1.159 albertel 943: if ($status eq 'UNAVAILABLE') {
1.245 albertel 944: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 945: } elsif ($status eq 'NOT_IN_A_SLOT') {
946: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 947: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 948: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 949: }
1.216 albertel 950: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 951: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 952: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 953: $msg.=&checkout_msg();
1.252 albertel 954: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 955: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 956: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 957: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 958: }
959: $result.=$msg.'<br />';
960: } elsif ($target eq 'tex') {
1.332 albertel 961: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
962: : '\begin{minipage}{\textwidth}';
1.443 foxr 963: $result.='\noindent \vskip 1 mm '.
1.332 albertel 964: $startminipage.'\vskip 0 mm';
1.159 albertel 965: if ($status eq 'UNAVAILABLE') {
1.211 albertel 966: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 967: } else {
1.211 albertel 968: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 969: }
970: }
1.324 albertel 971: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 972: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
973: $style);
1.324 albertel 974: if ($target eq 'web') {
1.375 albertel 975: $result .=
976: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 977: } elsif ($target eq 'grade') {
978: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
979: 'problem');
980: }
1.159 albertel 981: } elsif ($target eq 'web') {
1.360 albertel 982: if ($status eq 'CAN_ANSWER'
983: && $slot_name ne ''
984: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
985: # unproctored slot access, self checkin
986: &Apache::bridgetask::check_in('problem',undef,undef,
987: $slot_name);
988: }
1.368 albertel 989: $result.="\n $form_tag_start \t".
1.227 albertel 990: '<input type="hidden" name="submitted" value="yes" />';
991: # create a page header and exit
1.284 albertel 992: if ($env{'request.state'} eq "construct") {
993: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 994: if ($Apache::lonhomework::type eq 'practice') {
995: $result.= '<input type="submit" name="resetdata" '.
996: 'value="'.&mt('New Problem Variation').'" />'.
997: &practice_problem_header().'<hr />';
998: }
1.227 albertel 999: }
1000: # if we are viewing someone else preserve that info
1.284 albertel 1001: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1002: foreach my $field ('symb','courseid','domain','username') {
1003: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1004: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1005: }
1006: }
1007: } elsif ($target eq 'tex') {
1.319 foxr 1008: $result .= 'INSERTTEXFRONTMATTERHERE';
1009:
1.99 sakharuk 1010: }
1.159 albertel 1011: } elsif ($target eq 'edit') {
1.343 albertel 1012: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1013: $Apache::lonxml::warnings_error_header=
1014: &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 1015: my $temp=&Apache::edit::insertlist($target,$token);
1016: $result.=$temp;
1017: } elsif ($target eq 'modified') {
1018: $result=$token->[4];
1019: } else {
1020: # page_start returned a starting result, delete it if we don't need it
1021: $result = '';
1.99 sakharuk 1022: }
1.159 albertel 1023: return $result;
1.9 albertel 1024: }
1025:
1026: sub end_problem {
1.159 albertel 1027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1028: my $result;
1.310 foxr 1029:
1.321 albertel 1030: if (!$Apache::lonxml::metamode) {
1031: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1032: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1033: }
1.319 foxr 1034:
1035: if ($target eq 'tex') {
1.321 albertel 1036: # Figure out the front matter and replace the
1037: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1038: # this in end_problem because whether or not we display due
1039: # dates depends on whether due dates have already been
1040: # displayed in the problem parts.
1041:
1.319 foxr 1042: my $frontmatter = '';
1043: my $startminipage = '';
1044: if (not $env{'form.problem_split'}=~/yes/) {
1045: $startminipage = '\begin{minipage}{\textwidth}';
1046: }
1047: my $id = $Apache::inputtags::part;
1048: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1049: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1050: my @packages = split /,/,$packages;
1051: my $allow_print_points = 0;
1052: foreach my $partial_key (@packages) {
1053: if ($partial_key=~m/^part_0$/) {
1054: $allow_print_points=1;
1055: }
1056: }
1057: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1058: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1059: if (lc($env{'course.'.$env{'request.course.id'}.
1060: '.disableexampointprint'}) eq 'yes') {
1061: $allow_print_points=0;
1062: }
1063: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1064: 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 1065: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1066: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1067:
1068: # Figure out what the due date is and if we need to print
1069: # it in the problem header. We have been logging the
1070: # last due date written to file.
1071:
1.444.4.1! raeburn 1072: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1.319 foxr 1073: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.444.4.1! raeburn 1074: my $duedate_text = &mt('Due date: [_1]'
! 1075: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1076: my $temp_file;
1077: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1078:
1079: # Figure out what the last printed due date is or set it
1080: # to the epoch if no duedates have been printed.
1081:
1082: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1083: if (-e $filename) {
1084: $temp_file = Apache::File->new($filename);
1085: my @due_file = <$temp_file>;
1086: $due_file_content = $due_file[$#due_file];
1087: chomp $due_file_content;
1088: }
1089:
1090: # We display the due date iff it is not the same as the last
1091: # duedate in problem header ($due_file_content), and
1092: # none of our parts displayed a duedate.
1093: #
1094: my $parts_with_displayduedate;
1095: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1096: $parts_with_displayduedate =
1097: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1098: } else {
1099: $parts_with_displayduedate = 0;
1100: }
1101: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1102: $temp_file = Apache::File->new('>'.$filename);
1103: print $temp_file "$duetime\n";
1104: if (not $env{'request.symb'} =~ m/\.page_/) {
1105: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1106: $frontmatter .= $begin_doc.
1.444.4.1! raeburn 1107: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1108: } else {
1109: $frontmatter.= $begin_doc.$toc_line;
1110: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1111: }
1112: } else {
1.444.4.1! raeburn 1113: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1114: }
1115: } else {
1116: if (not $env{'request.symb'} =~ m/\.page_/) {
1117: $frontmatter .= $begin_doc.$toc_line;
1118: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1119: } else {
1.381 albertel 1120: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1121: }
1122: }
1123: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1124: }
1125:
1.159 albertel 1126: my $status=$Apache::inputtags::status['-1'];
1127: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1128: $target eq 'tex') {
1.249 albertel 1129: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1130: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1131: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1132: &Apache::inputtags::grade;
1.324 albertel 1133: } elsif ($status eq 'NEEDS_CHECKIN') {
1134: # no need to grade, and don't want to hide data
1.249 albertel 1135: } else {
1136: # move any submission data to .hidden
1137: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1138: }
1.159 albertel 1139: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1140: $Apache::inputtags::part eq '0' &&
1.252 albertel 1141: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1142: # if part is zero, no <part>s existed, so we need show the current
1143: # grading status
1144: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1145: $result.= $gradestatus;
1146: }
1147: if (
1.284 albertel 1148: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1149: ($target eq 'answer') || ($target eq 'tex')
1150: ) {
1.227 albertel 1151: if ($target ne 'tex' &&
1.284 albertel 1152: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1153: $result.="</form>";
1.348 albertel 1154: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1155: }
1156: if ($target eq 'web') {
1.346 albertel 1157: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1158: } elsif ($target eq 'tex') {
1.178 sakharuk 1159: my $endminipage = '';
1.284 albertel 1160: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1161: $endminipage = '\end{minipage}';
1162: }
1.284 albertel 1163: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1164: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1165: } else {
1.262 sakharuk 1166: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1167: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1168: $result .= $endminipage.'\end{document} ';
1169: } else {
1.382 albertel 1170: $result .= $endminipage;
1.262 sakharuk 1171: }
1.159 albertel 1172: }
1173: }
1174: }
1175: if ($target eq 'grade') {
1176: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1177: &finalize_storage();
1178: }
1.284 albertel 1179: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1180: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1181: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1182: # normally we get it from above, but in CSTR
1.172 albertel 1183: # we always show answer mode too.
1.159 albertel 1184: }
1185: } elsif ($target eq 'meta') {
1186: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1187: @Apache::inputtags::response=();
1.159 albertel 1188: $result=&Apache::response::mandatory_part_meta;
1189: }
1.215 albertel 1190: $result.=&Apache::response::meta_part_order();
1.258 albertel 1191: $result.=&Apache::response::meta_response_order();
1.159 albertel 1192: } elsif ($target eq 'edit') {
1193: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1194: $result .= &problem_edit_footer();
1.320 albertel 1195: } elsif ($target eq 'modified') {
1196: $result .= $token->[2];
1.159 albertel 1197: }
1.155 albertel 1198:
1.284 albertel 1199: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1200: &Apache::inputtags::check_for_duplicate_ids();
1201: }
1.204 albertel 1202:
1203: &reset_problem_globals('problem');
1.159 albertel 1204:
1205: return $result;
1.48 albertel 1206: }
1207:
1.108 albertel 1208:
1.48 albertel 1209: sub start_library {
1.159 albertel 1210: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1211: my ($result,$form_tag_start);
1.371 albertel 1212: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1213: &init_problem_globals('library');
1214: $Apache::lonhomework::type='problem';
1215: }
1.159 albertel 1216: if ($target eq 'edit') {
1.343 albertel 1217: ($result,$form_tag_start)=
1218: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1219: 'Edit');
1220: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1221: my $temp=&Apache::edit::insertlist($target,$token);
1222: $result.=$temp;
1223: } elsif ($target eq 'modified') {
1224: $result=$token->[4];
1.340 albertel 1225: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1226: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1227: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1228: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1229: ($result,$form_tag_start)=
1230: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1231: $name);
1.159 albertel 1232: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1233: $result.=" \n $form_tag_start".
1.159 albertel 1234: '<input type="hidden" name="submitted" value="yes" />';
1235: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1236: if ($Apache::lonhomework::type eq 'practice') {
1237: $result.= '<input type="submit" name="resetdata" '.
1238: 'value="'.&mt('New Problem Variation').'" />'.
1239: &practice_problem_header().'<hr />';
1240: }
1.159 albertel 1241: }
1242: return $result;
1.48 albertel 1243: }
1244:
1245: sub end_library {
1.159 albertel 1246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1247: my $result='';
1248: if ($target eq 'edit') {
1249: $result=&problem_edit_footer();
1.371 albertel 1250: } elsif ($target eq 'web'
1251: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1252: && $env{'request.state'} eq "construct") {
1.349 albertel 1253: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1254: }
1.371 albertel 1255: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1256: &reset_problem_globals('library');
1257: }
1.159 albertel 1258: return $result;
1.197 www 1259: }
1260:
1261: sub start_definetag {
1.326 albertel 1262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1263:
1264: my $result;
1265:
1266: my $name = $token->[2]->{'name'};
1.326 albertel 1267: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1268: if ($target eq 'web') {
1269: if ($name=~/^\//) {
1270: $result=
1271: '<br /><table class="LC_sty_end"><tr><th>'.
1272: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1273: } else {
1274: $result=
1275: '<br /><table class="LC_sty_begin"><tr><th>'.
1276: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1277: }
1278: $skip = &HTML::Entities::encode($skip, '<>&"');
1279: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1280: }
1281: return $result;
1282: }
1283:
1284: sub end_definetag {
1285: return '';
1.1 albertel 1286: }
1287:
1288: sub start_block {
1.201 albertel 1289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1290:
1291: my $result;
1.1 albertel 1292:
1.339 albertel 1293: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1294: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1295: my $code = $token->[2]->{'condition'};
1.385 albertel 1296: if (defined($code) && $code ne '') {
1.137 albertel 1297: if (!$Apache::lonxml::default_homework_loaded) {
1298: &Apache::lonxml::default_homework_load($safeeval);
1299: }
1.131 albertel 1300: $result = &Apache::run::run($code,$safeeval);
1301: &Apache::lonxml::debug("block :$code: returned :$result:");
1302: } else {
1303: $result='1';
1304: }
1305: if ( ! $result ) {
1.201 albertel 1306: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1307: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1308: }
1309: $result='';
1310: } elsif ($target eq 'edit') {
1311: $result .=&Apache::edit::tag_start($target,$token);
1312: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1313: $token,40);
1314: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1315: } elsif ($target eq 'modified') {
1316: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1317: $safeeval,'condition');
1318: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1319: }
1.131 albertel 1320: return $result;
1.1 albertel 1321: }
1322:
1323: sub end_block {
1.167 www 1324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1325: my $result;
1326: if ($target eq "edit") {
1327: $result.= &Apache::edit::tag_end($target,$token,'');
1328: }
1329: return $result;
1330: }
1331:
1332: sub start_languageblock {
1.201 albertel 1333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1334:
1335: my $result;
1336:
1.339 albertel 1337: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1338: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1339: my $include = $token->[2]->{'include'};
1340: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1341: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1342: # This should not even happen, since we should at least have the server language
1.398 www 1343: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1344: # Now loop over all languages in order of preference
1345: foreach my $preferred_language (@preferred_languages) {
1.394 www 1346: # If the languageblock has no arguments, show the contents
1.399 www 1347: $result=1;
1348: my $found=0;
1.394 www 1349: # Do we have an include argument?
1.398 www 1350: if ($include) {
1.394 www 1351: # If include is specified, by default, don't render the block
1.399 www 1352: $result=0;
1.398 www 1353: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1354: # ... but if my preferred language is included, render it
1.398 www 1355: if ($included_language eq $preferred_language) {
1.399 www 1356: $result=1;
1357: $found=1;
1.398 www 1358: }
1359: }
1360: }
1.394 www 1361: # Do we have an exclude argument?
1.398 www 1362: if ($exclude) {
1.399 www 1363: $result=1;
1.398 www 1364: foreach my $excluded_language (split(/\,/,$exclude)) {
1365: if ($excluded_language eq $preferred_language) {
1.399 www 1366: $result=0;
1367: $found=1;
1.398 www 1368: }
1369: }
1370: }
1.399 www 1371: if ($found) { last; }
1.398 www 1372: }
1.201 albertel 1373: if ( ! $result ) {
1374: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1375: $style);
1376: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1377: }
1378: $result='';
1.167 www 1379: } elsif ($target eq 'edit') {
1380: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1381: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1382: $token,40);
1.211 albertel 1383: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1384: $token,40);
1385: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1386: } elsif ($target eq 'modified') {
1387: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1388: $safeeval,'include',
1389: 'exclude');
1.167 www 1390: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1391: }
1392: return $result;
1393: }
1394:
1395: sub end_languageblock {
1.170 www 1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1397: my $result;
1.201 albertel 1398: if ($target eq "edit") {
1.170 www 1399: $result.= &Apache::edit::tag_end($target,$token,'');
1400: }
1401: return $result;
1402: }
1403:
1.397 albertel 1404: {
1405: my %available_texts;
1406: sub start_translated {
1407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1408: &Apache::lonxml::register('Apache::structuretags',('lang'));
1409: undef(%available_texts);
1410: }
1411:
1412: sub end_translated {
1413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1414: my $result;
1415: #show the translation on viewable targets
1416: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1417: # or non-viewable targets, if it's embedded in something that
1418: # wants the output
1419: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1420: && &Apache::lonxml::in_redirection() ) ) {
1421: my @possibilities = keys(%available_texts);
1422: my $which =
1423: &Apache::loncommon::languages(\@possibilities) || 'default';
1424: $result = $available_texts{$which};
1425: }
1426: undef(%available_texts);
1427: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1428: return $result;
1429: }
1430:
1431:
1432: sub start_lang {
1433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1434: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1435: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1436: &Apache::lonxml::startredirection();
1437: }
1438: return '';
1439: }
1440:
1441: sub end_lang {
1442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1443: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1444: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1445: my $result = &Apache::lonxml::endredirection();
1446: my $which = &Apache::lonxml::get_param('which',$parstack,
1447: $safeeval);
1.431 raeburn 1448: if ($which=~/\w/) {
1449: $available_texts{$which} = $result;
1450: }
1451: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1452: $safeeval);
1453: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1454: if ($language=~/\w/) {
1455: $available_texts{$language} = $result;
1456: }
1.427 bisitz 1457: }
1458:
1.397 albertel 1459: }
1460: return '';
1461: }
1462: }
1463:
1.170 www 1464: sub start_instructorcomment {
1.201 albertel 1465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1466:
1467: my $result;
1468:
1.339 albertel 1469: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1470: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1471: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1472: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1473: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1474: $parser,$style);
1.170 www 1475: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1476: }
1477: $result='';
1478: } elsif ($target eq 'edit') {
1479: $result .=&Apache::edit::tag_start($target,$token);
1480: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1481: }
1482: return $result;
1483: }
1484:
1485: sub end_instructorcomment {
1.159 albertel 1486: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1487: my $result;
1488: if ($target eq "edit") {
1489: $result.= &Apache::edit::tag_end($target,$token,'');
1490: }
1491: return $result;
1.4 tsai 1492: }
1493:
1494: sub start_while {
1.326 albertel 1495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1496:
1.160 albertel 1497: my $result;
1.339 albertel 1498: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1499: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1500: my $code = $token->[2]->{'condition'};
1.4 tsai 1501:
1.160 albertel 1502: push( @Apache::structuretags::whileconds, $code);
1503: if (!$Apache::lonxml::default_homework_loaded) {
1504: &Apache::lonxml::default_homework_load($safeeval);
1505: }
1506: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1507: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1508: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1509: push( @Apache::structuretags::whileline, $token->[5]);
1510: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1511: if ( $result ) {
1512: &Apache::lonxml::newparser($parser,\$bodytext);
1513: }
1514: } elsif ($target eq 'edit') {
1515: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1516: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1517: $token,40);
1518: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1519: } elsif ($target eq 'modified') {
1520: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1521: $safeeval,'condition');
1522: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1523: }
1.160 albertel 1524: return $result;
1.4 tsai 1525: }
1526:
1527: sub end_while {
1.159 albertel 1528: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1529: my $result;
1530:
1.339 albertel 1531: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1532: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1533: my $code = pop(@Apache::structuretags::whileconds);
1534: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1535: my $line = pop(@Apache::structuretags::whileline);
1536: my $return = &Apache::run::run($code,$safeeval);
1537: my $starttime=time;
1538: my $error=0;
1539: while ($return) {
1540: if (time-$starttime >
1541: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1542: $return = 0; $error=1; next;
1.161 albertel 1543: }
1544: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1545: if ($target eq 'grade' || $target eq 'answer' ||
1546: $target eq 'analyze') {
1547: # grade/answer/analyze should produce no output but if we
1548: # are redirecting, the redirecter should know what to do
1549: # with the output
1550: if (!$Apache::lonxml::redirection) { undef($result); }
1551: }
1.161 albertel 1552: $return = &Apache::run::run($code,$safeeval);
1553: }
1554: if ($error) {
1.430 bisitz 1555: &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 1556: }
1557: } elsif ($target eq "edit") {
1558: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1559: }
1.160 albertel 1560: return $result;
1.1 albertel 1561: }
1.6 tsai 1562:
1.160 albertel 1563: # <randomlist show="1">
1.6 tsai 1564: # <tag1>..</tag1>
1565: # <tag2>..</tag2>
1566: # <tag3>..</tag3>
1.160 albertel 1567: # ...
1.6 tsai 1568: # </randomlist>
1569: sub start_randomlist {
1.326 albertel 1570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1571: my $result;
1.339 albertel 1572: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1573: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1574: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1575: my $b_parser= HTML::LCParser->new(\$body);
1576: $b_parser->xml_mode(1);
1577: $b_parser->marked_sections(1);
1.159 albertel 1578: my $b_tok;
1579: my @randomlist;
1580: my $list_item;
1581: while($b_tok = $b_parser->get_token() ) {
1582: if($b_tok->[0] eq 'S') { # start tag
1583: # get content of the tag until matching end tag
1584: # get all text upto the matching tag
1585: # and push the content into @randomlist
1586: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1587: $b_parser);
1588: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1589: push(@randomlist,$list_item);
1590: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1591: # $list_item</b>";
1592: }
1593: if($b_tok->[0] eq 'T') { # text
1594: # what to do with text in between tags?
1595: # print "<b>TEXT $b_tok->[1]</b><br />";
1596: }
1597: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1598: # print "<b>END-TAG $b_tok->[1]</b><br />";
1599: # }
1600: }
1.303 albertel 1601: if (@randomlist) {
1602: my @idx_arr = (0 .. $#randomlist);
1603: &Apache::structuretags::shuffle(\@idx_arr);
1604: my $bodytext = '';
1605: my $show=$#randomlist;
1606: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1607: $showarg--;
1608: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1609: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1610: my @currlist;
1611: my $part = $Apache::inputtags::part;
1612: if ($part ne '') {
1613: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1614: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1615: if (!(grep(/^\Q$part\E$/,@currlist))) {
1616: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1617: }
1618: } else {
1619: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1620: }
1621: }
1622: }
1.303 albertel 1623: for(0 .. $show) {
1624: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1625: }
1626: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1627: }
1628: } elsif ($target eq 'edit' ) {
1629: $result .=&Apache::edit::tag_start($target,$token);
1630: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1631: $token,5);
1632: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1633: } elsif ($target eq 'modified' ) {
1634: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1635: $safeeval,'show');
1636: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1637: }
1638: return $result;
1.7 tsai 1639: }
1640:
1641: sub shuffle {
1642: my $a=shift;
1643: my $i;
1.303 albertel 1644: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1645: &Apache::response::pushrandomnumber();
1.159 albertel 1646: for($i=@$a;--$i;) {
1647: my $j=int(&Math::Random::random_uniform() * ($i+1));
1648: next if $i == $j;
1649: @$a[$i,$j] = @$a[$j,$i];
1650: }
1.251 albertel 1651: &Apache::response::poprandomnumber();
1.7 tsai 1652: }
1.6 tsai 1653: }
1654:
1655: sub end_randomlist {
1.159 albertel 1656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1657: my $result;
1658: if ($target eq 'edit' ) {
1659: $result=&Apache::edit::tag_end($target,$token,
1660: 'End Randomly Parsed Block');
1661: }
1662: return $result;
1.6 tsai 1663: }
1664:
1.283 albertel 1665: sub ordered_show_check {
1666: my $last_part=$Apache::inputtags::partlist[-2];
1667: my $in_order=
1668: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1669: my $in_order_show=1;
1670: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1671: $in_order_show=&Apache::response::check_status($last_part);
1672: }
1673: return $in_order_show;
1674: }
1675:
1.11 albertel 1676: sub start_part {
1.326 albertel 1677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1678: if (!$Apache::lonxml::metamode) {
1679: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1680: # duedates.
1681: }
1.159 albertel 1682: my $result='';
1.386 albertel 1683: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1684: $Apache::inputtags::part=$id;
1.177 albertel 1685: push(@Apache::inputtags::partlist,$id);
1686: @Apache::inputtags::response=();
1.159 albertel 1687: @Apache::inputtags::previous=();
1688: @Apache::inputtags::previous_version=();
1.405 albertel 1689: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1690: &Apache::response::reset_params();
1691:
1.159 albertel 1692: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1693: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1694: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1695: my $in_order_show=&ordered_show_check();
1.214 albertel 1696: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1697: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1698: &Apache::run::run($expression,$safeeval);
1.159 albertel 1699:
1700: if ($target eq 'meta') {
1.224 www 1701: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1702: return &Apache::response::mandatory_part_meta.
1703: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1704: } elsif ($target eq 'web' || $target eq 'grade' ||
1705: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1706: if ($hidden || !$in_order_show) {
1.326 albertel 1707: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1708: } else {
1709: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1710: push (@Apache::inputtags::status,$status);
1711: my $expression='$external::datestatus="'.$status.'";';
1712: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1713: &Apache::run::run($expression,$safeeval);
1.284 albertel 1714: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1715: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1716: }
1.216 albertel 1717: if (( $status eq 'CLOSED' ) ||
1718: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1719: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1720: ( $status eq 'BANNED') ||
1721: ( $status eq 'UNAVAILABLE') ||
1722: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1723: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1724: $style);
1.159 albertel 1725: if ( $target eq "web" ) {
1.211 albertel 1726: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1727: } elsif ( $target eq 'tex' ) {
1.284 albertel 1728: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1729: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1730: } else {
1.211 albertel 1731: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1732: }
1.159 albertel 1733: }
1734: } else {
1735: if ($target eq 'tex') {
1.284 albertel 1736: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1737: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1738: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1739: } else {
1740: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1741: }
1.195 sakharuk 1742: }
1.159 albertel 1743: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1744: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1745: my @allkeys = split /,/,$allkeys;
1746: my $allow_print_points = 0;
1747: foreach my $partial_key (@allkeys) {
1.230 albertel 1748: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1749: if ($1 ne '0') {$allow_print_points=1;}
1750: }
1751: }
1.275 albertel 1752: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1753: if (defined($maxtries) && $maxtries < 0) {
1754: $allow_print_points=0;
1755: }
1.302 albertel 1756: if (lc($env{'course.'.$env{'request.course.id'}.
1757: '.disableexampointprint'}) eq 'yes') {
1758: $allow_print_points=0;
1759: }
1.222 sakharuk 1760: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1761: } elsif ($target eq 'web') {
1.356 www 1762: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1763: }
1764: }
1765: }
1766: } elsif ($target eq 'edit') {
1767: $result.=&Apache::edit::tag_start($target,$token);
1768: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1769: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1770: ' '.
1771: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1772: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1773: } elsif ($target eq 'modified') {
1774: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1775: $safeeval,'id','display');
1.159 albertel 1776: if ($constructtag) {
1.225 albertel 1777: #limiting ids to only letters numbers, and space
1.224 www 1778: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1779: $result = &Apache::edit::rebuild_tag($token);
1780: }
1781: }
1782: return $result;
1.11 albertel 1783: }
1784:
1785: sub end_part {
1.159 albertel 1786: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1787: &Apache::lonxml::debug("in end_part $target ");
1788: my $status=$Apache::inputtags::status['-1'];
1789: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1790: my $in_order_show=&ordered_show_check();
1.321 albertel 1791: my $result;
1792: if (!$Apache::lonxml::metamode) {
1793: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1794: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1795: }
1.312 albertel 1796: if ($target eq 'grade') {
1.249 albertel 1797: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1798: !$hidden && $in_order_show) {
1.311 foxr 1799: $result.=&Apache::inputtags::grade;
1.249 albertel 1800: } else {
1801: # move any submission data to .hidden
1802: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1803: }
1.283 albertel 1804: } elsif (($target eq 'web' || $target eq 'tex') &&
1805: !$hidden && $in_order_show) {
1.159 albertel 1806: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1807: $target);
1.212 albertel 1808: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1809: $gradestatus='';
1810: }
1.311 foxr 1811: $result.=$gradestatus;
1.265 sakharuk 1812: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1813: } elsif ($target eq 'edit') {
1.311 foxr 1814: $result.=&Apache::edit::end_table();
1.322 albertel 1815: } elsif ($target eq 'modified') {
1816: $result .= $token->[2];
1.159 albertel 1817: }
1818: pop @Apache::inputtags::status;
1819: $Apache::inputtags::part='';
1.295 albertel 1820: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1821: return $result;
1.11 albertel 1822: }
1.1 albertel 1823:
1.25 albertel 1824: sub start_preduedate {
1.326 albertel 1825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1826: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1827: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1828: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1829: if (!$Apache::lonhomework::scantronmode &&
1830: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1831: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1832: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1833: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1834: }
1.24 albertel 1835: }
1.159 albertel 1836: return '';
1.24 albertel 1837: }
1838:
1.25 albertel 1839: sub end_preduedate {
1.159 albertel 1840: return '';
1.24 albertel 1841: }
1842:
1.369 foxr 1843: # In all the modes where <postanswerdate> text is
1844: # displayable, all we do is eat up the text between the start/stop
1845: # tags if the conditions are not right to display it.
1.25 albertel 1846: sub start_postanswerdate {
1.326 albertel 1847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1848: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1849: &Apache::lonnet::allowed('pav',
1850: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1851: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1852: $target eq 'tex' ) {
1.300 albertel 1853: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1854: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1855: (($target eq 'tex') && !$pav)) {
1.326 albertel 1856: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1857: }
1858: }
1859: return '';
1.24 albertel 1860: }
1861:
1.25 albertel 1862: sub end_postanswerdate {
1.159 albertel 1863: return '';
1.24 albertel 1864: }
1865:
1.25 albertel 1866: sub start_notsolved {
1.326 albertel 1867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1868: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1869: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1870: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1871: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1872: if ($gradestatus =~ /^correct/ &&
1873: &Apache::response::show_answer()) {
1.159 albertel 1874: &Apache::lonxml::debug("skipping");
1.326 albertel 1875: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1876: }
1.24 albertel 1877: }
1.159 albertel 1878: return '';
1.24 albertel 1879: }
1880:
1.25 albertel 1881: sub end_notsolved {
1.159 albertel 1882: return '';
1.24 albertel 1883: }
1884:
1885: sub start_solved {
1.326 albertel 1886: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1887: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1888: $target eq 'tex') {
1889: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1890: if ($gradestatus !~ /^correct/ ||
1891: !&Apache::response::show_answer()) {
1.326 albertel 1892: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1893: }
1.24 albertel 1894: }
1.159 albertel 1895: return '';
1.24 albertel 1896: }
1897:
1898: sub end_solved {
1.248 albertel 1899: return '';
1900: }
1901:
1902: sub start_problemtype {
1.326 albertel 1903: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1904: my $result;
1.339 albertel 1905: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1906: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1907: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1908: if (!defined($mode)) { $mode='show'; }
1909: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1910: my $found=0;
1911: foreach my $type (split(',',$for)) {
1912: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1913: }
1914: if ($mode eq 'show' && !$found) {
1.326 albertel 1915: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1916: }
1917: if ($mode eq 'hide' && $found) {
1.326 albertel 1918: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1919: }
1920: } elsif ($target eq 'edit') {
1921: $result .=&Apache::edit::tag_start($target,$token);
1922: $result.=&Apache::edit::select_arg('Mode:','mode',
1923: [['show','Show'],
1924: ['hide','Hide']]
1925: ,$token);
1926: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1927: [ ['exam','Exam/Quiz Problem'],
1928: ['survey','Survey'],
1.428 raeburn 1929: ['problem','Homework Problem'],
1930: ['practice','Practice Problem'] ]
1.248 albertel 1931: ,$token);
1932: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1933: } elsif ($target eq 'modified') {
1934: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1935: $safeeval,'mode','for');
1936: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1937: }
1938: return $result;
1939: }
1940:
1941: sub end_problemtype {
1.159 albertel 1942: return '';
1.24 albertel 1943: }
1.34 albertel 1944:
1945: sub start_startouttext {
1.159 albertel 1946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1947: my @result=(''.'');
1948: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1949:
1950: my $nesting =
1951: &Apache::lonxml::set_state('outtext',
1952: &Apache::lonxml::get_state('outtext')+1);
1953: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1954: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1955: }
1.159 albertel 1956: return (@result);
1.34 albertel 1957: }
1.159 albertel 1958:
1.34 albertel 1959: sub end_startouttext {
1.326 albertel 1960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1961: my $result='';
1962: my $text='';
1963: if ($target eq 'edit') {
1.424 foxr 1964: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1965: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1966: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1967: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1968: .&Apache::edit::deletelist($target,$token)
1969: .'</span></td>';
1.425 raeburn 1970: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1971: $result .= '<td align="left">'
1972: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1973: .'</td>'
1974: .'<td>'
1975: .&Apache::edit::insertlist($target,$token)
1976: .'</td>';
1977: }
1.425 raeburn 1978: $result.='<td align="right" valign="top">' .
1.434 foxr 1979: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1980: &Apache::edit::end_row().
1.362 albertel 1981: &Apache::edit::start_spanning_row()."\n".
1.255 www 1982: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1983: }
1984: if ($target eq 'modified') {
1.219 albertel 1985: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1986: }
1987: if ($target eq 'tex') {
1988: $result .= '\noindent ';
1989: }
1990: return $result;
1.34 albertel 1991: }
1.159 albertel 1992:
1.34 albertel 1993: sub start_endouttext {
1.159 albertel 1994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1995: my $result='';
1996: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1997: if ($target eq "modified") {
1998: $result='<endouttext />'.
1.377 albertel 1999: &Apache::edit::handle_insertafter('startouttext');
2000: }
1.404 albertel 2001:
2002: my $nesting =
2003: &Apache::lonxml::set_state('outtext',
2004: &Apache::lonxml::get_state('outtext')-1);
2005: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2006: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2007: &Apache::lonxml::set_state('outtext', 0);
2008: }
1.159 albertel 2009: return $result;
1.34 albertel 2010: }
1.159 albertel 2011:
1.34 albertel 2012: sub end_endouttext {
1.159 albertel 2013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2014: my @result=('','');
2015: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2016: return (@result);
1.34 albertel 2017: }
1.159 albertel 2018:
1.45 albertel 2019: sub delete_startouttext {
1.326 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2021: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2022: my $text=$$parser['-1']->get_text("/endouttext");
2023: my $ntoken=$$parser['-1']->get_token();
2024: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2025: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2026: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2027: # they did the last time round
2028: &Apache::lonxml::increasedepth($ntoken);
2029: &Apache::lonxml::decreasedepth($ntoken);
2030: return 1;
1.193 www 2031: }
2032:
2033: sub start_simpleeditbutton {
2034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2035: my $result='';
1.284 albertel 2036: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2037: ($target eq 'web') &&
1.330 albertel 2038: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2039: my $url=$env{'request.noversionuri'};
1.193 www 2040: $url=~s/\?.*$//;
1.367 albertel 2041: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2042: # Warning make more sense and is more important on edit screen
2043: # $result='<p class="LC_warning">'
2044: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2045: # .&Apache::loncommon::help_open_topic('Caching')
2046: # .'</p>';
2047: $result.=&Apache::lontemplate::start_functionslist()
2048: .&Apache::lontemplate::item_functionslist(
2049: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')
2050: .&Apache::lontemplate::end_functionslist();
2051:
1.193 www 2052: }
2053: return $result;
2054: }
2055:
2056: sub end_simpleeditbutton {
2057: return '';
1.45 albertel 2058: }
1.34 albertel 2059:
1.428 raeburn 2060: sub practice_problem_header {
2061: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2062: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2063: '</span>';
2064: }
2065:
1.1 albertel 2066: 1;
2067: __END__
1.435 jms 2068:
2069: =pod
2070:
2071: =back
2072:
2073: =cut
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