Annotation of loncom/homework/structuretags.pm, revision 1.444.4.6
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.444.4.6! raeburn 4: # $Id: structuretags.pm,v 1.444.4.5 2010/01/29 15:37:04 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.344 albertel 206: if (defined($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: $page_start .= '<p class="LC_info">'
247: .&mt('Browsing resource, all submissions are temporary.')
248: .'</p>';
249: }
1.344 albertel 250: }
251:
1.409 albertel 252: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 253: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 254: }
1.344 albertel 255:
1.159 albertel 256: my $form_tag_start;
257: if (!defined($found{'form'})) {
1.337 albertel 258: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.444.4.6! raeburn 259: my $uri = Apache::loncommon::inhibit_menu_check(
! 260: &Apache::lonenc::check_encrypt($env{'request.uri'}));
! 261: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 262: $form_tag_start.=$uri.'" ';
263: if ($target eq 'edit') {
264: $form_tag_start.=&Apache::edit::form_change_detection();
265: }
1.368 albertel 266: $form_tag_start.='>'."\n";
1.355 albertel 267:
268: my $symb=&Apache::lonnet::symbread();
269: if ($symb =~ /\S/) {
270: $symb=
271: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
272: $form_tag_start.=
1.368 albertel 273: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 274: }
1.159 albertel 275: }
1.343 albertel 276: return ($page_start,$form_tag_start);
1.105 albertel 277: }
278:
1.141 matthew 279: #use Time::HiRes();
1.105 albertel 280: sub get_resource_name {
1.159 albertel 281: my ($parstack,$safeeval)=@_;
1.388 foxr 282: my $name;
1.204 albertel 283: if (defined($Apache::lonhomework::name)) {
1.388 foxr 284: $name = $Apache::lonhomework::name;
285: } else {
286: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 287: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 288: if ($name eq '') {
289: $name=&Apache::lonnet::EXT('resource.title');
290: if ($name eq 'con_lost') { $name = ''; }
291: }
292: if ($name!~/\S+/) {
293: $name=$env{'request.uri'};
294: $name=~s-.*/([^/]+)$-$1-;
295: }
296: # The name has had html tags escaped:
297:
298: $name=~s/</</gs;
299: $name=~s/>/>/gs;
300:
301: $Apache::lonhomework::name=$name;
1.204 albertel 302: }
1.159 albertel 303: return $name;
1.105 albertel 304: }
305:
306: sub setup_rndseed {
1.159 albertel 307: my ($safeeval)=@_;
308: my $rndseed;
1.367 albertel 309: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 310: if ($env{'request.state'} eq "construct"
311: || $symb eq ''
312: || $Apache::lonhomework::type eq 'practice'
313: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 314: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 315: ['rndseed']);
1.284 albertel 316: $rndseed=$env{'form.rndseed'};
1.159 albertel 317: if (!$rndseed) {
1.162 albertel 318: $rndseed=$Apache::lonhomework::history{'rndseed'};
319: if (!$rndseed) {
320: $rndseed=time;
321: }
1.284 albertel 322: $env{'form.rndseed'}=$rndseed;
1.162 albertel 323: }
1.374 albertel 324: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
325: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 326: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 327: srand(time);
328: $rndseed=int(rand(2100000000));
1.284 albertel 329: $env{'form.rndseed'}=$rndseed;
330: delete($env{'form.resetdata'});
331: delete($env{'form.newrandomization'});
1.159 albertel 332: }
1.187 albertel 333: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 334: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 335: }
1.247 albertel 336: if ($Apache::lonhomework::history{'resource.CODE'}) {
337: $rndseed=&Apache::lonnet::rndseed();
338: }
1.221 albertel 339: if ($safeeval) {
340: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 341: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 342: }
1.159 albertel 343: }
344: return $rndseed;
1.105 albertel 345: }
346:
1.268 albertel 347: sub remember_problem_state {
348: return '
1.284 albertel 349: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
350: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
351: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 352: }
353:
1.423 www 354: sub problem_edit_buttons {
355: return '
1.408 albertel 356: <div class="LC_edit_problem_discards">
1.416 raeburn 357: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 358: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 359: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 360: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 361: </div>
362: <div class="LC_edit_problem_saves">
1.416 raeburn 363: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
364: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 365: </div>';
366: }
367:
368: sub problem_edit_header {
369: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
370: &Apache::structuretags::remember_problem_state().'
371: <div class="LC_edit_problem_header">
372: <div class="LC_edit_problem_header_title">
373: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
374: </div>'.
375: &problem_edit_buttons().'
1.408 albertel 376: <hr class="LC_edit_problem_divide" />
1.409 albertel 377: '.&Apache::lonxml::message_location().'
1.408 albertel 378: </div>
379: '.
1.282 albertel 380: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 381: }
382:
383: sub problem_edit_footer {
1.412 albertel 384: return '</td></tr></table><br />
385: <div class="LC_edit_problem_footer">
1.423 www 386: <hr class="LC_edit_problem_divide" />'.
387: &problem_edit_buttons().'
1.412 albertel 388: <hr class="LC_edit_problem_divide" />
389: </div>
390: '.
391:
1.348 albertel 392: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 393: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 394: }
395:
1.235 albertel 396: sub option {
397: my ($value,$name) = @_;
398: my $result ="<option value='".$value."' ";
1.284 albertel 399: if ($env{'form.'.$name} eq $value) {
1.235 albertel 400: $result.=" selected='on' ";
401: }
402: $result.='>';
403: return $result;
404: }
405:
1.105 albertel 406: sub problem_web_to_edit_header {
1.159 albertel 407: my ($rndseed)=@_;
1.406 albertel 408: my $result .= '<div class="LC_edit_problem_header">';
409:
410: if (!$Apache::lonhomework::parsing_a_task) {
411: $result .=
412: '<div class="LC_edit_problem_header_title">'.
413: &mt('Problem Testing').
414: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
415: '</div>';
416: } else {
417: $result .=
418: '<div class="LC_edit_problem_header_title">'.
419: &mt('Task Testing').
420: '</div>';
421: }
422:
1.444.4.1 raeburn 423: my $show_all_foils_text =
424: ($Apache::lonhomework::parsing_a_task) ?
425: &mt('Show All Instances')
426: : &mt('Show All Foils');
1.315 albertel 427:
1.444.4.1 raeburn 428: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
429: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 430: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.444.4.1 raeburn 431: $show_all.= ' /> '.$show_all_foils_text
432: .'</label></span>';
1.406 albertel 433:
434:
1.384 albertel 435:
1.406 albertel 436: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 437: if (!$Apache::lonhomework::parsing_a_task) {
438: $result.="
1.406 albertel 439: <div class='LC_edit_problem_header_row1'>
440: <span class=\"LC_nobreak\">
1.405 albertel 441: ".&mt("Problem Status:")."
1.235 albertel 442: <select name='problemstate'>
1.270 albertel 443: <option value=''></option>
1.235 albertel 444: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
445: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
446: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
447: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
448: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
449: </select>
1.406 albertel 450: </span>
451: <span class=\"LC_nobreak\">
1.405 albertel 452: ".&mt("Problem Type:")."
1.235 albertel 453: <select name='problemtype'>
1.270 albertel 454: <option value=''></option>
1.242 albertel 455: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 456: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 457: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 458: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 459: </select>
1.406 albertel 460: </span>
461: $show_all
462: </div>
463: <div class='LC_edit_problem_header_row2'>
464: <span class=\"LC_nobreak\">
1.405 albertel 465: ".&mt("Feedback Mode:")."
1.235 albertel 466: <select name='problemstatus'>
467: <option value=''></option>
1.242 albertel 468: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 469: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
470: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 471: </select>
1.406 albertel 472: </span>
473: ";
474:
1.376 albertel 475: } elsif ($Apache::lonhomework::parsing_a_task) {
476: $result.="
1.406 albertel 477: <div class='LC_edit_problem_header_row1'>
478: <span class=\"LC_nobreak\">
1.405 albertel 479: ".&mt("Problem Status:")."
1.376 albertel 480: <select name='problemstate'>
481: <option value=''></option>
482: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
483: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
484: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
485: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
486: </select>
1.406 albertel 487: </span>
488: $show_all
489: ";
490: }
491: $result.='
492: <span class="LC_nobreak">
493: '.&mt('Apply style file: ').'
494: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
495: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
496: </span>
1.422 www 497: </div>
498: <div class="LC_edit_problem_header_row1">'.
499: &Apache::lonxml::renderingoptions().'
1.406 albertel 500: </div>
501: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
502: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
503: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
504: </div>
505: <hr class="LC_edit_problem_divide" />
506: <div class="LC_edit_problem_header_randomize_row">
507: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
508: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
509: <input type="text" name="rndseed" size="10" value="'.
510: $rndseed.'"
511: onchange="javascript:document.lonhomework.changerandseed.click()" />';
512:
513: if (!$Apache::lonhomework::parsing_a_task) {
514: my $numtoanalyze=$env{'form.numtoanalyze'};
515: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 516: $result .= '<span class="LC_nobreak">'.
517: &mt('[_1] for [_2] versions.',
1.416 raeburn 518: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 519: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
520: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 521: $numtoanalyze.'" size="5" />').
522: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
523: '</span>';
524:
1.313 albertel 525: }
1.406 albertel 526:
527: $result.='
528: </div>
1.408 albertel 529: <div class="LC_edit_problem_header_edit_row">';
1.416 raeburn 530: $result.='<input type="hidden" name="problemmode" value="view" />';
531: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
532: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
533: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
534: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 535: $result.='
536: </div>
1.409 albertel 537: '.&Apache::lonxml::message_location().'
1.406 albertel 538: </div>';
1.159 albertel 539: return $result;
1.48 albertel 540: }
541:
1.65 albertel 542: sub initialize_storage {
1.357 albertel 543: my ($given_symb) = @_;
1.353 albertel 544: undef(%Apache::lonhomework::results);
545: undef(%Apache::lonhomework::history);
1.357 albertel 546: my ($symb,$courseid,$domain,$name) =
1.367 albertel 547: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 548:
549: # anonymous users (CODEd exams) have no data
550: if ($name eq 'anonymous'
551: && !defined($domain)) {
552: return;
553: }
554:
1.333 albertel 555: if ($env{'request.state'} eq 'construct'
556: || $symb eq ''
557: || $Apache::lonhomework::type eq 'practice') {
558:
559: my $namespace = $symb || $env{'request.uri'};
560: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 561: ($env{'form.resetdata'} eq &mt('New Problem Variation')
562: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 563: $env{'form.newrandomization'} eq &mt('New Randomization')) {
564: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
565: &Apache::lonxml::debug("Attempt reset");
566: }
1.159 albertel 567: %Apache::lonhomework::history=
1.333 albertel 568: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 569: my ($temp)=keys %Apache::lonhomework::history ;
570: &Apache::lonxml::debug("Return message of $temp");
571: } else {
572: %Apache::lonhomework::history=
573: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
574: }
1.353 albertel 575:
1.159 albertel 576: #ignore error conditions
1.67 albertel 577: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 578: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 579: }
580:
1.435 jms 581: =pod
582:
583: =item finalize_storage()
584:
585: Stores away the result has to a student's environment
586: checks form.grade_ for specific values, other wises stores
587: to the running users environment
588: Will increment totals for attempts, students, and corrects
589: if running user has student role.
590:
591: =cut
592:
593:
1.65 albertel 594: sub finalize_storage {
1.357 albertel 595: my ($given_symb) = @_;
1.159 albertel 596: my $result;
1.289 albertel 597: if (%Apache::lonhomework::results) {
1.323 albertel 598: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
599: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 600: my ($symb,$courseid,$domain,$name) =
1.367 albertel 601: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 602: if ($env{'request.state'} eq 'construct'
603: || $symb eq ''
604: || $Apache::lonhomework::type eq 'practice') {
605: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 606: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 607: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 608: $namespace,'',$domain,$name);
1.159 albertel 609: &Apache::lonxml::debug('Construct Store return message:'.$result);
610: } else {
611: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
612: $symb,$courseid,$domain,$name);
613: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 614: if ($env{'request.role'} =~/^st/) {
615: &store_aggregates($symb,$courseid);
616: }
1.159 albertel 617: }
1.323 albertel 618: } else {
619: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 620: }
1.159 albertel 621: return $result;
1.65 albertel 622: }
623:
1.435 jms 624: =pod
625:
626: item store_aggregates()
627:
628: Sends hash of values to be incremented in nohist_resourcetracker.db
629: for the course. Increments total number of attempts, unique students
630: and corrects for each part for an instance of a problem, as appropriate.
631:
632: =cut
633:
1.285 raeburn 634: sub store_aggregates {
635: my ($symb,$courseid) = @_;
1.286 albertel 636: my %aggregate;
637: my @parts;
1.288 albertel 638: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
639: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 640: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 641: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 642: push(@parts, $1);
1.285 raeburn 643: }
644: }
1.286 albertel 645: foreach my $part (@parts) {
646: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
647: eq 'APPROX_ANS' ||
648: $Apache::lonhomework::results{'resource.'.$part.'.award'}
649: eq 'EXACT_ANS') {
1.287 albertel 650: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 651: }
1.286 albertel 652: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 653: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 654: } else {
1.293 albertel 655: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 656: if ($last_reset) {
1.293 albertel 657: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 658: $aggregate{$symb."\0".$part."\0users"} = 1;
659: }
660: }
1.285 raeburn 661: }
1.287 albertel 662: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 663: }
1.292 raeburn 664: if (keys (%aggregate) > 0) {
1.289 albertel 665: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 666: $cdomain,$cname);
667: }
668: }
1.289 albertel 669:
1.65 albertel 670: sub checkout_msg {
1.211 albertel 671: my %lt=&Apache::lonlocal::texthash(
672: 'resource'=>'The resource needs to be checked out',
673: '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.',
674: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
675: 'checkout'=>'Check out Exam for Viewing',
676: 'checkout?'=>'Check out Exam?');
1.352 albertel 677: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 678: return (<<ENDCHECKOUT);
1.211 albertel 679: <h2>$lt{'resource'}</h2>
680: <p>$lt{'id_expln'}</p>
1.444.4.1 raeburn 681: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 682: <form name="checkout" method="post" action="$uri">
1.91 albertel 683: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 684: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 685: </form>
686: ENDCHECKOUT
687: }
688:
1.252 albertel 689: sub firstaccess_msg {
1.253 albertel 690: my ($time,$symb)=@_;
1.414 albertel 691: my $result;
692: my @interval=&Apache::lonnet::EXT("resource.0.interval");
693: if ($interval[1] eq 'map') {
694: my ($map)=&Apache::lonnet::decode_symb($symb);
695: my $foldertitle=&Apache::lonnet::gettitle($map);
696:
697: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 698: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
699: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
700: ,$foldertitle,$time)."</h2>";
1.414 albertel 701: } elsif ($interval[1] eq 'course') {
702: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 703: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
704: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
705: ,$course,$time)."</h2>";
1.414 albertel 706: } else {
707: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 708: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
709: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
710: ,$title,$time)."</h2>";
1.414 albertel 711: }
1.352 albertel 712: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 713: my $buttontext = &mt('Show Resource');
714: my $timertext = &mt('Start Timer?');
1.414 albertel 715: $result .= (<<ENDCHECKOUT);
1.444 bisitz 716: <form name="markaccess" method="post" action="$uri">
1.252 albertel 717: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 718: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 719: </form>
720: ENDCHECKOUT
1.414 albertel 721: return $result;
1.252 albertel 722: }
723:
1.204 albertel 724: sub init_problem_globals {
725: my ($type)=@_;
726: #initialize globals
1.308 foxr 727: # For problems, we start out in part 0 (outside a <part> tag).
728: # and part 0 is used to describe the main body of the <problem>
729: #
1.204 albertel 730: if ($type eq 'problem') {
731: $Apache::inputtags::part='0';
732: @Apache::inputtags::partlist=('0');
1.405 albertel 733: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 734: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 735:
1.266 albertel 736: } elsif ($type eq 'library') {
1.204 albertel 737: $Apache::inputtags::part='';
738: @Apache::inputtags::partlist=();
1.405 albertel 739: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 740: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 741:
1.304 albertel 742: } elsif ($type eq 'Task') {
743: $Apache::inputtags::part='0';
744: @Apache::inputtags::partlist=('0');
1.405 albertel 745: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 746: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 747: }
748: @Apache::inputtags::responselist = ();
749: @Apache::inputtags::importlist = ();
750: @Apache::inputtags::previous=();
751: @Apache::inputtags::previous_version=();
752: $Apache::structuretags::printanswer='No';
753: @Apache::structuretags::whileconds=();
754: @Apache::structuretags::whilebody=();
755: @Apache::structuretags::whileline=();
756: $Apache::lonhomework::scantronmode=0;
757: undef($Apache::lonhomework::name);
1.358 albertel 758: undef($Apache::lonhomework::default_type);
759: undef($Apache::lonhomework::type);
1.204 albertel 760: }
761:
762: sub reset_problem_globals {
763: my ($type)=@_;
764: undef(%Apache::lonhomework::history);
765: undef(%Apache::lonhomework::results);
766: undef($Apache::inputtags::part);
1.208 albertel 767: #don't undef this, lonhomework.pm takes care of this, we use this to
768: #detect if we try to do 2 problems in one file
769: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 770: undef($Apache::lonhomework::name);
1.358 albertel 771: undef($Apache::lonhomework::default_type);
772: undef($Apache::lonhomework::type);
773: undef($Apache::lonhomework::scantronmode);
774: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 775: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 776: }
777:
1.241 albertel 778: sub set_problem_state {
1.240 albertel 779: my ($part)=@_;
1.284 albertel 780: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 781: $Apache::lonhomework::history{"resource.$part.solved"}=
782: 'correct_by_student';
783: }
784: }
785:
1.241 albertel 786: sub get_problem_status {
787: my ($part)=@_;
1.267 albertel 788: my $problem_status;
1.284 albertel 789: if ($env{'request.state'} eq 'construct' &&
790: defined($env{'form.problemstatus'})) {
791: $problem_status=$env{'form.problemstatus'};
1.267 albertel 792: } else {
793: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
794: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 795: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 796: }
797: return $problem_status;
798: }
799:
1.9 albertel 800: sub start_problem {
1.326 albertel 801: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 802:
1.311 foxr 803: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 804: if (!$Apache::lonxml::metamode) {
805: &Apache::lonxml::startredirection();
806: }
1.311 foxr 807:
1.308 foxr 808: # Problems don't nest and we don't allow more than one <problem> in
809: # a .problem file.
810: #
1.184 albertel 811: if ( $Apache::inputtags::part ne '' ||
812: $Apache::lonhomework::parsing_a_problem) {
813: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 814: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 815: return '';
816: }
1.184 albertel 817:
818: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 819: &init_problem_globals('problem');
1.166 albertel 820:
1.284 albertel 821: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 822: $Apache::lonhomework::scantronmode=1;
823: }
1.161 albertel 824:
1.159 albertel 825: if ($target ne 'analyze') {
1.415 raeburn 826: my $type = &Apache::lonnet::EXT('resource.0.type');
827: $Apache::lonhomework::type=$type;
1.284 albertel 828: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 829: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 830: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 831: }
1.332 albertel 832: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 833: }
1.164 albertel 834: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 835: my $uri=$env{'request.uri'};
1.159 albertel 836: if ($uri=~/\.(\w+)$/) {
837: $Apache::lonhomework::type=$1;
838: &Apache::lonxml::debug("Using type of $1");
839: } else {
840: $Apache::lonhomework::type='problem';
841: &Apache::lonxml::debug("Using default type, problem, :$uri:");
842: }
1.87 albertel 843: }
1.301 albertel 844: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 845:
1.363 albertel 846: &initialize_storage();
1.389 albertel 847: if ($target ne 'analyze'
848: && $env{'request.state'} eq 'construct') {
849: &set_problem_state('0');
850: }
851:
1.366 albertel 852: if ($target eq 'web') {
853: &Apache::lonxml::debug(" grading history ");
854: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
855: }
1.363 albertel 856:
1.159 albertel 857: #added vars to the scripting enviroment
1.213 albertel 858: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 859: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 860: &Apache::run::run($expression,$safeeval);
1.159 albertel 861: my $status;
862: my $accessmsg;
863:
1.343 albertel 864: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 865: my ($result,$form_tag_start);
1.354 albertel 866: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
867: || $target eq 'edit') {
1.350 albertel 868: ($result,$form_tag_start) =
869: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
870: $name);
871: }
872:
1.284 albertel 873: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 874:
875: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
876: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
877: $target eq 'tex') {
878: #handle exam checkout
879: if ($Apache::lonhomework::type eq 'exam') {
880: my $token=
881: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 882: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 883: $token=&Apache::lonxml::maketoken();
884: $Apache::lonhomework::history{"resource.0.outtoken"}=
885: $token;
886: }
1.343 albertel 887: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 888: }
1.284 albertel 889: if ($env{'form.markaccess'}) {
1.414 albertel 890: my @interval=&Apache::lonnet::EXT("resource.0.interval");
891: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 892: }
1.159 albertel 893: #handle rand seed in construction space
894: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 895: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 896: if ($env{'request.state'} ne "construct" &&
897: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 898: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
899: $rndseed.'" />'.
900: '<input type="submit" name="resetdata"
1.334 albertel 901: value="'.&mt('New Problem Variation').'" />';
902: if (exists($env{'form.username'})) {
903: $form_tag_start.=
1.164 albertel 904: '<input type="hidden" name="username"
1.284 albertel 905: value="'.$env{'form.username'}.'" />';
1.334 albertel 906: }
1.444.4.1 raeburn 907: if ($env{'request.role.adv'}) {
908: $form_tag_start.= ' <label class="LC_nobreak">'
909: .'<input type="checkbox" name="showallfoils"';
910: if (defined($env{'form.showallfoils'})) {
911: $form_tag_start.=' checked="checked"';
912: }
913: $form_tag_start.= ' /> '
914: .&mt('Show All Foils')
915: .'</label>';
916:
1.267 albertel 917: }
1.417 www 918: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 919: $form_tag_start.=&practice_problem_header();
1.417 www 920: }
1.267 albertel 921: $form_tag_start.='<hr />';
1.162 albertel 922: }
1.324 albertel 923:
924: ($status,$accessmsg,my $slot_name,my $slot) =
925: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 926: push (@Apache::inputtags::status,$status);
1.324 albertel 927:
1.159 albertel 928: my $expression='$external::datestatus="'.$status.'";';
929: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
930: &Apache::run::run($expression,$safeeval);
931: &Apache::lonxml::debug("Got $status");
1.324 albertel 932:
1.159 albertel 933: if (( $status eq 'CLOSED' ) ||
934: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 935: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 936: ( $status eq 'BANNED') ||
1.216 albertel 937: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 938: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 939: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 940: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
941: $style);
1.159 albertel 942: if ( $target eq "web" ) {
1.343 albertel 943: my $msg;
1.159 albertel 944: if ($status eq 'UNAVAILABLE') {
1.245 albertel 945: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 946: } elsif ($status eq 'NOT_IN_A_SLOT') {
947: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 948: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 949: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 950: }
1.216 albertel 951: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 952: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 953: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 954: $msg.=&checkout_msg();
1.252 albertel 955: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 956: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 957: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 958: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 959: }
960: $result.=$msg.'<br />';
961: } elsif ($target eq 'tex') {
1.332 albertel 962: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
963: : '\begin{minipage}{\textwidth}';
1.443 foxr 964: $result.='\noindent \vskip 1 mm '.
1.332 albertel 965: $startminipage.'\vskip 0 mm';
1.159 albertel 966: if ($status eq 'UNAVAILABLE') {
1.211 albertel 967: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 968: } else {
1.211 albertel 969: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 970: }
971: }
1.324 albertel 972: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 973: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
974: $style);
1.324 albertel 975: if ($target eq 'web') {
1.375 albertel 976: $result .=
977: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 978: } elsif ($target eq 'grade') {
979: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
980: 'problem');
981: }
1.159 albertel 982: } elsif ($target eq 'web') {
1.360 albertel 983: if ($status eq 'CAN_ANSWER'
984: && $slot_name ne ''
985: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
986: # unproctored slot access, self checkin
987: &Apache::bridgetask::check_in('problem',undef,undef,
988: $slot_name);
989: }
1.368 albertel 990: $result.="\n $form_tag_start \t".
1.227 albertel 991: '<input type="hidden" name="submitted" value="yes" />';
992: # create a page header and exit
1.284 albertel 993: if ($env{'request.state'} eq "construct") {
994: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 995: if ($Apache::lonhomework::type eq 'practice') {
996: $result.= '<input type="submit" name="resetdata" '.
997: 'value="'.&mt('New Problem Variation').'" />'.
998: &practice_problem_header().'<hr />';
999: }
1.227 albertel 1000: }
1001: # if we are viewing someone else preserve that info
1.284 albertel 1002: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1003: foreach my $field ('symb','courseid','domain','username') {
1004: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1005: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1006: }
1007: }
1008: } elsif ($target eq 'tex') {
1.319 foxr 1009: $result .= 'INSERTTEXFRONTMATTERHERE';
1010:
1.99 sakharuk 1011: }
1.159 albertel 1012: } elsif ($target eq 'edit') {
1.343 albertel 1013: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1014: $Apache::lonxml::warnings_error_header=
1015: &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 1016: my $temp=&Apache::edit::insertlist($target,$token);
1017: $result.=$temp;
1018: } elsif ($target eq 'modified') {
1019: $result=$token->[4];
1020: } else {
1021: # page_start returned a starting result, delete it if we don't need it
1022: $result = '';
1.99 sakharuk 1023: }
1.159 albertel 1024: return $result;
1.9 albertel 1025: }
1026:
1027: sub end_problem {
1.159 albertel 1028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1029: my $result;
1.310 foxr 1030:
1.321 albertel 1031: if (!$Apache::lonxml::metamode) {
1032: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1033: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1034: }
1.319 foxr 1035:
1036: if ($target eq 'tex') {
1.321 albertel 1037: # Figure out the front matter and replace the
1038: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1039: # this in end_problem because whether or not we display due
1040: # dates depends on whether due dates have already been
1041: # displayed in the problem parts.
1042:
1.319 foxr 1043: my $frontmatter = '';
1044: my $startminipage = '';
1045: if (not $env{'form.problem_split'}=~/yes/) {
1046: $startminipage = '\begin{minipage}{\textwidth}';
1047: }
1048: my $id = $Apache::inputtags::part;
1049: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1050: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1051: my @packages = split /,/,$packages;
1052: my $allow_print_points = 0;
1053: foreach my $partial_key (@packages) {
1054: if ($partial_key=~m/^part_0$/) {
1055: $allow_print_points=1;
1056: }
1057: }
1058: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1059: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1060: if (lc($env{'course.'.$env{'request.course.id'}.
1061: '.disableexampointprint'}) eq 'yes') {
1062: $allow_print_points=0;
1063: }
1064: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1065: 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 1066: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1067: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1068:
1069: # Figure out what the due date is and if we need to print
1070: # it in the problem header. We have been logging the
1071: # last due date written to file.
1072:
1.444.4.1 raeburn 1073: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1.319 foxr 1074: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.444.4.1 raeburn 1075: my $duedate_text = &mt('Due date: [_1]'
1076: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1077: my $temp_file;
1078: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1079:
1080: # Figure out what the last printed due date is or set it
1081: # to the epoch if no duedates have been printed.
1082:
1083: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1084: if (-e $filename) {
1085: $temp_file = Apache::File->new($filename);
1086: my @due_file = <$temp_file>;
1087: $due_file_content = $due_file[$#due_file];
1088: chomp $due_file_content;
1089: }
1090:
1091: # We display the due date iff it is not the same as the last
1092: # duedate in problem header ($due_file_content), and
1093: # none of our parts displayed a duedate.
1094: #
1095: my $parts_with_displayduedate;
1096: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1097: $parts_with_displayduedate =
1098: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1099: } else {
1100: $parts_with_displayduedate = 0;
1101: }
1102: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1103: $temp_file = Apache::File->new('>'.$filename);
1104: print $temp_file "$duetime\n";
1105: if (not $env{'request.symb'} =~ m/\.page_/) {
1106: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1107: $frontmatter .= $begin_doc.
1.444.4.1 raeburn 1108: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1109: } else {
1110: $frontmatter.= $begin_doc.$toc_line;
1.444.4.3 raeburn 1111: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1112: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1113: }
1.319 foxr 1114: }
1115: } else {
1.444.4.1 raeburn 1116: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1117: }
1118: } else {
1119: if (not $env{'request.symb'} =~ m/\.page_/) {
1120: $frontmatter .= $begin_doc.$toc_line;
1.444.4.3 raeburn 1121: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1122: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1123: }
1.319 foxr 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: $allow_print_points=0;
1764: }
1.444.4.3 raeburn 1765: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1766: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1767: }
1.233 www 1768: } elsif ($target eq 'web') {
1.356 www 1769: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1770: }
1771: }
1772: }
1773: } elsif ($target eq 'edit') {
1774: $result.=&Apache::edit::tag_start($target,$token);
1775: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1776: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1777: ' '.
1778: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1779: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1780: } elsif ($target eq 'modified') {
1781: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1782: $safeeval,'id','display');
1.159 albertel 1783: if ($constructtag) {
1.225 albertel 1784: #limiting ids to only letters numbers, and space
1.224 www 1785: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1786: $result = &Apache::edit::rebuild_tag($token);
1787: }
1788: }
1789: return $result;
1.11 albertel 1790: }
1791:
1792: sub end_part {
1.159 albertel 1793: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1794: &Apache::lonxml::debug("in end_part $target ");
1795: my $status=$Apache::inputtags::status['-1'];
1796: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1797: my $in_order_show=&ordered_show_check();
1.321 albertel 1798: my $result;
1799: if (!$Apache::lonxml::metamode) {
1800: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1801: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1802: }
1.312 albertel 1803: if ($target eq 'grade') {
1.249 albertel 1804: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1805: !$hidden && $in_order_show) {
1.311 foxr 1806: $result.=&Apache::inputtags::grade;
1.249 albertel 1807: } else {
1808: # move any submission data to .hidden
1809: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1810: }
1.283 albertel 1811: } elsif (($target eq 'web' || $target eq 'tex') &&
1812: !$hidden && $in_order_show) {
1.159 albertel 1813: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1814: $target);
1.212 albertel 1815: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1816: $gradestatus='';
1817: }
1.311 foxr 1818: $result.=$gradestatus;
1.265 sakharuk 1819: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1820: } elsif ($target eq 'edit') {
1.311 foxr 1821: $result.=&Apache::edit::end_table();
1.322 albertel 1822: } elsif ($target eq 'modified') {
1823: $result .= $token->[2];
1.159 albertel 1824: }
1825: pop @Apache::inputtags::status;
1826: $Apache::inputtags::part='';
1.295 albertel 1827: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1828: return $result;
1.11 albertel 1829: }
1.1 albertel 1830:
1.25 albertel 1831: sub start_preduedate {
1.326 albertel 1832: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1833: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1834: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1835: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1836: if (!$Apache::lonhomework::scantronmode &&
1837: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1838: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1839: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1840: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1841: }
1.24 albertel 1842: }
1.159 albertel 1843: return '';
1.24 albertel 1844: }
1845:
1.25 albertel 1846: sub end_preduedate {
1.159 albertel 1847: return '';
1.24 albertel 1848: }
1849:
1.369 foxr 1850: # In all the modes where <postanswerdate> text is
1851: # displayable, all we do is eat up the text between the start/stop
1852: # tags if the conditions are not right to display it.
1.25 albertel 1853: sub start_postanswerdate {
1.326 albertel 1854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1855: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1856: &Apache::lonnet::allowed('pav',
1857: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1858: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1859: $target eq 'tex' ) {
1.300 albertel 1860: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1861: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1862: (($target eq 'tex') && !$pav)) {
1.326 albertel 1863: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1864: }
1865: }
1866: return '';
1.24 albertel 1867: }
1868:
1.25 albertel 1869: sub end_postanswerdate {
1.159 albertel 1870: return '';
1.24 albertel 1871: }
1872:
1.25 albertel 1873: sub start_notsolved {
1.326 albertel 1874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1875: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1876: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1877: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1878: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1879: if ($gradestatus =~ /^correct/ &&
1880: &Apache::response::show_answer()) {
1.159 albertel 1881: &Apache::lonxml::debug("skipping");
1.326 albertel 1882: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1883: }
1.24 albertel 1884: }
1.159 albertel 1885: return '';
1.24 albertel 1886: }
1887:
1.25 albertel 1888: sub end_notsolved {
1.159 albertel 1889: return '';
1.24 albertel 1890: }
1891:
1892: sub start_solved {
1.326 albertel 1893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1894: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1895: $target eq 'tex') {
1896: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1897: if ($gradestatus !~ /^correct/ ||
1898: !&Apache::response::show_answer()) {
1.326 albertel 1899: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1900: }
1.24 albertel 1901: }
1.159 albertel 1902: return '';
1.24 albertel 1903: }
1904:
1905: sub end_solved {
1.248 albertel 1906: return '';
1907: }
1908:
1909: sub start_problemtype {
1.326 albertel 1910: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1911: my $result;
1.339 albertel 1912: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1913: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1914: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1915: if (!defined($mode)) { $mode='show'; }
1916: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1917: my $found=0;
1918: foreach my $type (split(',',$for)) {
1919: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1920: }
1921: if ($mode eq 'show' && !$found) {
1.326 albertel 1922: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1923: }
1924: if ($mode eq 'hide' && $found) {
1.326 albertel 1925: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1926: }
1927: } elsif ($target eq 'edit') {
1928: $result .=&Apache::edit::tag_start($target,$token);
1929: $result.=&Apache::edit::select_arg('Mode:','mode',
1930: [['show','Show'],
1931: ['hide','Hide']]
1932: ,$token);
1933: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1934: [ ['exam','Exam/Quiz Problem'],
1935: ['survey','Survey'],
1.428 raeburn 1936: ['problem','Homework Problem'],
1937: ['practice','Practice Problem'] ]
1.248 albertel 1938: ,$token);
1939: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1940: } elsif ($target eq 'modified') {
1941: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1942: $safeeval,'mode','for');
1943: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1944: }
1945: return $result;
1946: }
1947:
1948: sub end_problemtype {
1.159 albertel 1949: return '';
1.24 albertel 1950: }
1.34 albertel 1951:
1952: sub start_startouttext {
1.159 albertel 1953: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1954: my @result=(''.'');
1955: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1956:
1957: my $nesting =
1958: &Apache::lonxml::set_state('outtext',
1959: &Apache::lonxml::get_state('outtext')+1);
1960: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1961: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1962: }
1.159 albertel 1963: return (@result);
1.34 albertel 1964: }
1.159 albertel 1965:
1.34 albertel 1966: sub end_startouttext {
1.326 albertel 1967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1968: my $result='';
1969: my $text='';
1970: if ($target eq 'edit') {
1.424 foxr 1971: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1972: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1973: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1974: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1975: .&Apache::edit::deletelist($target,$token)
1976: .'</span></td>';
1.425 raeburn 1977: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1978: $result .= '<td align="left">'
1979: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1980: .'</td>'
1981: .'<td>'
1982: .&Apache::edit::insertlist($target,$token)
1983: .'</td>';
1984: }
1.425 raeburn 1985: $result.='<td align="right" valign="top">' .
1.434 foxr 1986: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1987: &Apache::edit::end_row().
1.362 albertel 1988: &Apache::edit::start_spanning_row()."\n".
1.255 www 1989: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1990: }
1991: if ($target eq 'modified') {
1.219 albertel 1992: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1993: }
1994: if ($target eq 'tex') {
1995: $result .= '\noindent ';
1996: }
1997: return $result;
1.34 albertel 1998: }
1.159 albertel 1999:
1.34 albertel 2000: sub start_endouttext {
1.159 albertel 2001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2002: my $result='';
2003: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2004: if ($target eq "modified") {
2005: $result='<endouttext />'.
1.377 albertel 2006: &Apache::edit::handle_insertafter('startouttext');
2007: }
1.404 albertel 2008:
2009: my $nesting =
2010: &Apache::lonxml::set_state('outtext',
2011: &Apache::lonxml::get_state('outtext')-1);
2012: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2013: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2014: &Apache::lonxml::set_state('outtext', 0);
2015: }
1.159 albertel 2016: return $result;
1.34 albertel 2017: }
1.159 albertel 2018:
1.34 albertel 2019: sub end_endouttext {
1.159 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2021: my @result=('','');
2022: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2023: return (@result);
1.34 albertel 2024: }
1.159 albertel 2025:
1.45 albertel 2026: sub delete_startouttext {
1.326 albertel 2027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2028: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2029: my $text=$$parser['-1']->get_text("/endouttext");
2030: my $ntoken=$$parser['-1']->get_token();
2031: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2032: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2033: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2034: # they did the last time round
2035: &Apache::lonxml::increasedepth($ntoken);
2036: &Apache::lonxml::decreasedepth($ntoken);
2037: return 1;
1.193 www 2038: }
2039:
2040: sub start_simpleeditbutton {
2041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2042: my $result='';
1.284 albertel 2043: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2044: ($target eq 'web') &&
1.330 albertel 2045: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2046: my $url=$env{'request.noversionuri'};
1.193 www 2047: $url=~s/\?.*$//;
1.367 albertel 2048: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2049: # Warning make more sense and is more important on edit screen
2050: # $result='<p class="LC_warning">'
2051: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2052: # .&Apache::loncommon::help_open_topic('Caching')
2053: # .'</p>';
1.444.4.4 raeburn 2054: $result .= '<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
2055: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.
1.444.4.5 raeburn 2056: &mt('Edit').'</a></td></tr></table><br />';
1.442 bisitz 2057:
1.193 www 2058: }
2059: return $result;
2060: }
2061:
2062: sub end_simpleeditbutton {
2063: return '';
1.45 albertel 2064: }
1.34 albertel 2065:
1.428 raeburn 2066: sub practice_problem_header {
2067: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2068: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2069: '</span>';
2070: }
2071:
1.1 albertel 2072: 1;
2073: __END__
1.435 jms 2074:
2075: =pod
2076:
2077: =back
2078:
2079: =cut
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