Annotation of loncom/homework/structuretags.pm, revision 1.444.4.5
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.444.4.5! raeburn 4: # $Id: structuretags.pm,v 1.444.4.4 2010/01/29 15:33:02 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="';
1.338 albertel 259: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 260: $form_tag_start.=$uri.'" ';
261: if ($target eq 'edit') {
262: $form_tag_start.=&Apache::edit::form_change_detection();
263: }
1.368 albertel 264: $form_tag_start.='>'."\n";
1.355 albertel 265:
266: my $symb=&Apache::lonnet::symbread();
267: if ($symb =~ /\S/) {
268: $symb=
269: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
270: $form_tag_start.=
1.368 albertel 271: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 272: }
1.159 albertel 273: }
1.343 albertel 274: return ($page_start,$form_tag_start);
1.105 albertel 275: }
276:
1.141 matthew 277: #use Time::HiRes();
1.105 albertel 278: sub get_resource_name {
1.159 albertel 279: my ($parstack,$safeeval)=@_;
1.388 foxr 280: my $name;
1.204 albertel 281: if (defined($Apache::lonhomework::name)) {
1.388 foxr 282: $name = $Apache::lonhomework::name;
283: } else {
284: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 285: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 286: if ($name eq '') {
287: $name=&Apache::lonnet::EXT('resource.title');
288: if ($name eq 'con_lost') { $name = ''; }
289: }
290: if ($name!~/\S+/) {
291: $name=$env{'request.uri'};
292: $name=~s-.*/([^/]+)$-$1-;
293: }
294: # The name has had html tags escaped:
295:
296: $name=~s/</</gs;
297: $name=~s/>/>/gs;
298:
299: $Apache::lonhomework::name=$name;
1.204 albertel 300: }
1.159 albertel 301: return $name;
1.105 albertel 302: }
303:
304: sub setup_rndseed {
1.159 albertel 305: my ($safeeval)=@_;
306: my $rndseed;
1.367 albertel 307: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 308: if ($env{'request.state'} eq "construct"
309: || $symb eq ''
310: || $Apache::lonhomework::type eq 'practice'
311: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 312: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 313: ['rndseed']);
1.284 albertel 314: $rndseed=$env{'form.rndseed'};
1.159 albertel 315: if (!$rndseed) {
1.162 albertel 316: $rndseed=$Apache::lonhomework::history{'rndseed'};
317: if (!$rndseed) {
318: $rndseed=time;
319: }
1.284 albertel 320: $env{'form.rndseed'}=$rndseed;
1.162 albertel 321: }
1.374 albertel 322: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
323: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 324: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 325: srand(time);
326: $rndseed=int(rand(2100000000));
1.284 albertel 327: $env{'form.rndseed'}=$rndseed;
328: delete($env{'form.resetdata'});
329: delete($env{'form.newrandomization'});
1.159 albertel 330: }
1.187 albertel 331: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 332: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 333: }
1.247 albertel 334: if ($Apache::lonhomework::history{'resource.CODE'}) {
335: $rndseed=&Apache::lonnet::rndseed();
336: }
1.221 albertel 337: if ($safeeval) {
338: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 339: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 340: }
1.159 albertel 341: }
342: return $rndseed;
1.105 albertel 343: }
344:
1.268 albertel 345: sub remember_problem_state {
346: return '
1.284 albertel 347: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
348: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
349: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 350: }
351:
1.423 www 352: sub problem_edit_buttons {
353: return '
1.408 albertel 354: <div class="LC_edit_problem_discards">
1.416 raeburn 355: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 356: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 357: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 358: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 359: </div>
360: <div class="LC_edit_problem_saves">
1.416 raeburn 361: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
362: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 363: </div>';
364: }
365:
366: sub problem_edit_header {
367: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
368: &Apache::structuretags::remember_problem_state().'
369: <div class="LC_edit_problem_header">
370: <div class="LC_edit_problem_header_title">
371: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
372: </div>'.
373: &problem_edit_buttons().'
1.408 albertel 374: <hr class="LC_edit_problem_divide" />
1.409 albertel 375: '.&Apache::lonxml::message_location().'
1.408 albertel 376: </div>
377: '.
1.282 albertel 378: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 379: }
380:
381: sub problem_edit_footer {
1.412 albertel 382: return '</td></tr></table><br />
383: <div class="LC_edit_problem_footer">
1.423 www 384: <hr class="LC_edit_problem_divide" />'.
385: &problem_edit_buttons().'
1.412 albertel 386: <hr class="LC_edit_problem_divide" />
387: </div>
388: '.
389:
1.348 albertel 390: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 391: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 392: }
393:
1.235 albertel 394: sub option {
395: my ($value,$name) = @_;
396: my $result ="<option value='".$value."' ";
1.284 albertel 397: if ($env{'form.'.$name} eq $value) {
1.235 albertel 398: $result.=" selected='on' ";
399: }
400: $result.='>';
401: return $result;
402: }
403:
1.105 albertel 404: sub problem_web_to_edit_header {
1.159 albertel 405: my ($rndseed)=@_;
1.406 albertel 406: my $result .= '<div class="LC_edit_problem_header">';
407:
408: if (!$Apache::lonhomework::parsing_a_task) {
409: $result .=
410: '<div class="LC_edit_problem_header_title">'.
411: &mt('Problem Testing').
412: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
413: '</div>';
414: } else {
415: $result .=
416: '<div class="LC_edit_problem_header_title">'.
417: &mt('Task Testing').
418: '</div>';
419: }
420:
1.444.4.1 raeburn 421: my $show_all_foils_text =
422: ($Apache::lonhomework::parsing_a_task) ?
423: &mt('Show All Instances')
424: : &mt('Show All Foils');
1.315 albertel 425:
1.444.4.1 raeburn 426: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
427: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 428: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.444.4.1 raeburn 429: $show_all.= ' /> '.$show_all_foils_text
430: .'</label></span>';
1.406 albertel 431:
432:
1.384 albertel 433:
1.406 albertel 434: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 435: if (!$Apache::lonhomework::parsing_a_task) {
436: $result.="
1.406 albertel 437: <div class='LC_edit_problem_header_row1'>
438: <span class=\"LC_nobreak\">
1.405 albertel 439: ".&mt("Problem Status:")."
1.235 albertel 440: <select name='problemstate'>
1.270 albertel 441: <option value=''></option>
1.235 albertel 442: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
443: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
444: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
445: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
446: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
447: </select>
1.406 albertel 448: </span>
449: <span class=\"LC_nobreak\">
1.405 albertel 450: ".&mt("Problem Type:")."
1.235 albertel 451: <select name='problemtype'>
1.270 albertel 452: <option value=''></option>
1.242 albertel 453: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 454: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 455: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 456: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 457: </select>
1.406 albertel 458: </span>
459: $show_all
460: </div>
461: <div class='LC_edit_problem_header_row2'>
462: <span class=\"LC_nobreak\">
1.405 albertel 463: ".&mt("Feedback Mode:")."
1.235 albertel 464: <select name='problemstatus'>
465: <option value=''></option>
1.242 albertel 466: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 467: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
468: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 469: </select>
1.406 albertel 470: </span>
471: ";
472:
1.376 albertel 473: } elsif ($Apache::lonhomework::parsing_a_task) {
474: $result.="
1.406 albertel 475: <div class='LC_edit_problem_header_row1'>
476: <span class=\"LC_nobreak\">
1.405 albertel 477: ".&mt("Problem Status:")."
1.376 albertel 478: <select name='problemstate'>
479: <option value=''></option>
480: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
481: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
482: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
483: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
484: </select>
1.406 albertel 485: </span>
486: $show_all
487: ";
488: }
489: $result.='
490: <span class="LC_nobreak">
491: '.&mt('Apply style file: ').'
492: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
493: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
494: </span>
1.422 www 495: </div>
496: <div class="LC_edit_problem_header_row1">'.
497: &Apache::lonxml::renderingoptions().'
1.406 albertel 498: </div>
499: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
500: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
501: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
502: </div>
503: <hr class="LC_edit_problem_divide" />
504: <div class="LC_edit_problem_header_randomize_row">
505: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
506: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
507: <input type="text" name="rndseed" size="10" value="'.
508: $rndseed.'"
509: onchange="javascript:document.lonhomework.changerandseed.click()" />';
510:
511: if (!$Apache::lonhomework::parsing_a_task) {
512: my $numtoanalyze=$env{'form.numtoanalyze'};
513: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 514: $result .= '<span class="LC_nobreak">'.
515: &mt('[_1] for [_2] versions.',
1.416 raeburn 516: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 517: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
518: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 519: $numtoanalyze.'" size="5" />').
520: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
521: '</span>';
522:
1.313 albertel 523: }
1.406 albertel 524:
525: $result.='
526: </div>
1.408 albertel 527: <div class="LC_edit_problem_header_edit_row">';
1.416 raeburn 528: $result.='<input type="hidden" name="problemmode" value="view" />';
529: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
530: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
531: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
532: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 533: $result.='
534: </div>
1.409 albertel 535: '.&Apache::lonxml::message_location().'
1.406 albertel 536: </div>';
1.159 albertel 537: return $result;
1.48 albertel 538: }
539:
1.65 albertel 540: sub initialize_storage {
1.357 albertel 541: my ($given_symb) = @_;
1.353 albertel 542: undef(%Apache::lonhomework::results);
543: undef(%Apache::lonhomework::history);
1.357 albertel 544: my ($symb,$courseid,$domain,$name) =
1.367 albertel 545: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 546:
547: # anonymous users (CODEd exams) have no data
548: if ($name eq 'anonymous'
549: && !defined($domain)) {
550: return;
551: }
552:
1.333 albertel 553: if ($env{'request.state'} eq 'construct'
554: || $symb eq ''
555: || $Apache::lonhomework::type eq 'practice') {
556:
557: my $namespace = $symb || $env{'request.uri'};
558: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 559: ($env{'form.resetdata'} eq &mt('New Problem Variation')
560: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 561: $env{'form.newrandomization'} eq &mt('New Randomization')) {
562: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
563: &Apache::lonxml::debug("Attempt reset");
564: }
1.159 albertel 565: %Apache::lonhomework::history=
1.333 albertel 566: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 567: my ($temp)=keys %Apache::lonhomework::history ;
568: &Apache::lonxml::debug("Return message of $temp");
569: } else {
570: %Apache::lonhomework::history=
571: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
572: }
1.353 albertel 573:
1.159 albertel 574: #ignore error conditions
1.67 albertel 575: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 576: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 577: }
578:
1.435 jms 579: =pod
580:
581: =item finalize_storage()
582:
583: Stores away the result has to a student's environment
584: checks form.grade_ for specific values, other wises stores
585: to the running users environment
586: Will increment totals for attempts, students, and corrects
587: if running user has student role.
588:
589: =cut
590:
591:
1.65 albertel 592: sub finalize_storage {
1.357 albertel 593: my ($given_symb) = @_;
1.159 albertel 594: my $result;
1.289 albertel 595: if (%Apache::lonhomework::results) {
1.323 albertel 596: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
597: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 598: my ($symb,$courseid,$domain,$name) =
1.367 albertel 599: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 600: if ($env{'request.state'} eq 'construct'
601: || $symb eq ''
602: || $Apache::lonhomework::type eq 'practice') {
603: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 604: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 605: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 606: $namespace,'',$domain,$name);
1.159 albertel 607: &Apache::lonxml::debug('Construct Store return message:'.$result);
608: } else {
609: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
610: $symb,$courseid,$domain,$name);
611: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 612: if ($env{'request.role'} =~/^st/) {
613: &store_aggregates($symb,$courseid);
614: }
1.159 albertel 615: }
1.323 albertel 616: } else {
617: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 618: }
1.159 albertel 619: return $result;
1.65 albertel 620: }
621:
1.435 jms 622: =pod
623:
624: item store_aggregates()
625:
626: Sends hash of values to be incremented in nohist_resourcetracker.db
627: for the course. Increments total number of attempts, unique students
628: and corrects for each part for an instance of a problem, as appropriate.
629:
630: =cut
631:
1.285 raeburn 632: sub store_aggregates {
633: my ($symb,$courseid) = @_;
1.286 albertel 634: my %aggregate;
635: my @parts;
1.288 albertel 636: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
637: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 638: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 639: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 640: push(@parts, $1);
1.285 raeburn 641: }
642: }
1.286 albertel 643: foreach my $part (@parts) {
644: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
645: eq 'APPROX_ANS' ||
646: $Apache::lonhomework::results{'resource.'.$part.'.award'}
647: eq 'EXACT_ANS') {
1.287 albertel 648: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 649: }
1.286 albertel 650: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 651: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 652: } else {
1.293 albertel 653: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 654: if ($last_reset) {
1.293 albertel 655: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 656: $aggregate{$symb."\0".$part."\0users"} = 1;
657: }
658: }
1.285 raeburn 659: }
1.287 albertel 660: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 661: }
1.292 raeburn 662: if (keys (%aggregate) > 0) {
1.289 albertel 663: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 664: $cdomain,$cname);
665: }
666: }
1.289 albertel 667:
1.65 albertel 668: sub checkout_msg {
1.211 albertel 669: my %lt=&Apache::lonlocal::texthash(
670: 'resource'=>'The resource needs to be checked out',
671: '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.',
672: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
673: 'checkout'=>'Check out Exam for Viewing',
674: 'checkout?'=>'Check out Exam?');
1.352 albertel 675: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 676: return (<<ENDCHECKOUT);
1.211 albertel 677: <h2>$lt{'resource'}</h2>
678: <p>$lt{'id_expln'}</p>
1.444.4.1 raeburn 679: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 680: <form name="checkout" method="post" action="$uri">
1.91 albertel 681: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 682: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 683: </form>
684: ENDCHECKOUT
685: }
686:
1.252 albertel 687: sub firstaccess_msg {
1.253 albertel 688: my ($time,$symb)=@_;
1.414 albertel 689: my $result;
690: my @interval=&Apache::lonnet::EXT("resource.0.interval");
691: if ($interval[1] eq 'map') {
692: my ($map)=&Apache::lonnet::decode_symb($symb);
693: my $foldertitle=&Apache::lonnet::gettitle($map);
694:
695: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 696: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
697: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
698: ,$foldertitle,$time)."</h2>";
1.414 albertel 699: } elsif ($interval[1] eq 'course') {
700: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 701: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
702: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
703: ,$course,$time)."</h2>";
1.414 albertel 704: } else {
705: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 706: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
707: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
708: ,$title,$time)."</h2>";
1.414 albertel 709: }
1.352 albertel 710: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 711: my $buttontext = &mt('Show Resource');
712: my $timertext = &mt('Start Timer?');
1.414 albertel 713: $result .= (<<ENDCHECKOUT);
1.444 bisitz 714: <form name="markaccess" method="post" action="$uri">
1.252 albertel 715: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 716: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 717: </form>
718: ENDCHECKOUT
1.414 albertel 719: return $result;
1.252 albertel 720: }
721:
1.204 albertel 722: sub init_problem_globals {
723: my ($type)=@_;
724: #initialize globals
1.308 foxr 725: # For problems, we start out in part 0 (outside a <part> tag).
726: # and part 0 is used to describe the main body of the <problem>
727: #
1.204 albertel 728: if ($type eq 'problem') {
729: $Apache::inputtags::part='0';
730: @Apache::inputtags::partlist=('0');
1.405 albertel 731: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 732: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 733:
1.266 albertel 734: } elsif ($type eq 'library') {
1.204 albertel 735: $Apache::inputtags::part='';
736: @Apache::inputtags::partlist=();
1.405 albertel 737: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 738: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 739:
1.304 albertel 740: } elsif ($type eq 'Task') {
741: $Apache::inputtags::part='0';
742: @Apache::inputtags::partlist=('0');
1.405 albertel 743: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 744: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 745: }
746: @Apache::inputtags::responselist = ();
747: @Apache::inputtags::importlist = ();
748: @Apache::inputtags::previous=();
749: @Apache::inputtags::previous_version=();
750: $Apache::structuretags::printanswer='No';
751: @Apache::structuretags::whileconds=();
752: @Apache::structuretags::whilebody=();
753: @Apache::structuretags::whileline=();
754: $Apache::lonhomework::scantronmode=0;
755: undef($Apache::lonhomework::name);
1.358 albertel 756: undef($Apache::lonhomework::default_type);
757: undef($Apache::lonhomework::type);
1.204 albertel 758: }
759:
760: sub reset_problem_globals {
761: my ($type)=@_;
762: undef(%Apache::lonhomework::history);
763: undef(%Apache::lonhomework::results);
764: undef($Apache::inputtags::part);
1.208 albertel 765: #don't undef this, lonhomework.pm takes care of this, we use this to
766: #detect if we try to do 2 problems in one file
767: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 768: undef($Apache::lonhomework::name);
1.358 albertel 769: undef($Apache::lonhomework::default_type);
770: undef($Apache::lonhomework::type);
771: undef($Apache::lonhomework::scantronmode);
772: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 773: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 774: }
775:
1.241 albertel 776: sub set_problem_state {
1.240 albertel 777: my ($part)=@_;
1.284 albertel 778: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 779: $Apache::lonhomework::history{"resource.$part.solved"}=
780: 'correct_by_student';
781: }
782: }
783:
1.241 albertel 784: sub get_problem_status {
785: my ($part)=@_;
1.267 albertel 786: my $problem_status;
1.284 albertel 787: if ($env{'request.state'} eq 'construct' &&
788: defined($env{'form.problemstatus'})) {
789: $problem_status=$env{'form.problemstatus'};
1.267 albertel 790: } else {
791: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
792: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 793: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 794: }
795: return $problem_status;
796: }
797:
1.9 albertel 798: sub start_problem {
1.326 albertel 799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 800:
1.311 foxr 801: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 802: if (!$Apache::lonxml::metamode) {
803: &Apache::lonxml::startredirection();
804: }
1.311 foxr 805:
1.308 foxr 806: # Problems don't nest and we don't allow more than one <problem> in
807: # a .problem file.
808: #
1.184 albertel 809: if ( $Apache::inputtags::part ne '' ||
810: $Apache::lonhomework::parsing_a_problem) {
811: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 812: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 813: return '';
814: }
1.184 albertel 815:
816: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 817: &init_problem_globals('problem');
1.166 albertel 818:
1.284 albertel 819: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 820: $Apache::lonhomework::scantronmode=1;
821: }
1.161 albertel 822:
1.159 albertel 823: if ($target ne 'analyze') {
1.415 raeburn 824: my $type = &Apache::lonnet::EXT('resource.0.type');
825: $Apache::lonhomework::type=$type;
1.284 albertel 826: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 827: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 828: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 829: }
1.332 albertel 830: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 831: }
1.164 albertel 832: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 833: my $uri=$env{'request.uri'};
1.159 albertel 834: if ($uri=~/\.(\w+)$/) {
835: $Apache::lonhomework::type=$1;
836: &Apache::lonxml::debug("Using type of $1");
837: } else {
838: $Apache::lonhomework::type='problem';
839: &Apache::lonxml::debug("Using default type, problem, :$uri:");
840: }
1.87 albertel 841: }
1.301 albertel 842: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 843:
1.363 albertel 844: &initialize_storage();
1.389 albertel 845: if ($target ne 'analyze'
846: && $env{'request.state'} eq 'construct') {
847: &set_problem_state('0');
848: }
849:
1.366 albertel 850: if ($target eq 'web') {
851: &Apache::lonxml::debug(" grading history ");
852: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
853: }
1.363 albertel 854:
1.159 albertel 855: #added vars to the scripting enviroment
1.213 albertel 856: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 857: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 858: &Apache::run::run($expression,$safeeval);
1.159 albertel 859: my $status;
860: my $accessmsg;
861:
1.343 albertel 862: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 863: my ($result,$form_tag_start);
1.354 albertel 864: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
865: || $target eq 'edit') {
1.350 albertel 866: ($result,$form_tag_start) =
867: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
868: $name);
869: }
870:
1.284 albertel 871: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 872:
873: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
874: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
875: $target eq 'tex') {
876: #handle exam checkout
877: if ($Apache::lonhomework::type eq 'exam') {
878: my $token=
879: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 880: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 881: $token=&Apache::lonxml::maketoken();
882: $Apache::lonhomework::history{"resource.0.outtoken"}=
883: $token;
884: }
1.343 albertel 885: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 886: }
1.284 albertel 887: if ($env{'form.markaccess'}) {
1.414 albertel 888: my @interval=&Apache::lonnet::EXT("resource.0.interval");
889: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 890: }
1.159 albertel 891: #handle rand seed in construction space
892: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 893: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 894: if ($env{'request.state'} ne "construct" &&
895: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 896: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
897: $rndseed.'" />'.
898: '<input type="submit" name="resetdata"
1.334 albertel 899: value="'.&mt('New Problem Variation').'" />';
900: if (exists($env{'form.username'})) {
901: $form_tag_start.=
1.164 albertel 902: '<input type="hidden" name="username"
1.284 albertel 903: value="'.$env{'form.username'}.'" />';
1.334 albertel 904: }
1.444.4.1 raeburn 905: if ($env{'request.role.adv'}) {
906: $form_tag_start.= ' <label class="LC_nobreak">'
907: .'<input type="checkbox" name="showallfoils"';
908: if (defined($env{'form.showallfoils'})) {
909: $form_tag_start.=' checked="checked"';
910: }
911: $form_tag_start.= ' /> '
912: .&mt('Show All Foils')
913: .'</label>';
914:
1.267 albertel 915: }
1.417 www 916: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 917: $form_tag_start.=&practice_problem_header();
1.417 www 918: }
1.267 albertel 919: $form_tag_start.='<hr />';
1.162 albertel 920: }
1.324 albertel 921:
922: ($status,$accessmsg,my $slot_name,my $slot) =
923: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 924: push (@Apache::inputtags::status,$status);
1.324 albertel 925:
1.159 albertel 926: my $expression='$external::datestatus="'.$status.'";';
927: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
928: &Apache::run::run($expression,$safeeval);
929: &Apache::lonxml::debug("Got $status");
1.324 albertel 930:
1.159 albertel 931: if (( $status eq 'CLOSED' ) ||
932: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 933: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 934: ( $status eq 'BANNED') ||
1.216 albertel 935: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 936: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 937: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 938: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
939: $style);
1.159 albertel 940: if ( $target eq "web" ) {
1.343 albertel 941: my $msg;
1.159 albertel 942: if ($status eq 'UNAVAILABLE') {
1.245 albertel 943: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 944: } elsif ($status eq 'NOT_IN_A_SLOT') {
945: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 946: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 947: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 948: }
1.216 albertel 949: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 950: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 951: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 952: $msg.=&checkout_msg();
1.252 albertel 953: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 954: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 955: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 956: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 957: }
958: $result.=$msg.'<br />';
959: } elsif ($target eq 'tex') {
1.332 albertel 960: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
961: : '\begin{minipage}{\textwidth}';
1.443 foxr 962: $result.='\noindent \vskip 1 mm '.
1.332 albertel 963: $startminipage.'\vskip 0 mm';
1.159 albertel 964: if ($status eq 'UNAVAILABLE') {
1.211 albertel 965: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 966: } else {
1.211 albertel 967: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 968: }
969: }
1.324 albertel 970: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 971: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
972: $style);
1.324 albertel 973: if ($target eq 'web') {
1.375 albertel 974: $result .=
975: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 976: } elsif ($target eq 'grade') {
977: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
978: 'problem');
979: }
1.159 albertel 980: } elsif ($target eq 'web') {
1.360 albertel 981: if ($status eq 'CAN_ANSWER'
982: && $slot_name ne ''
983: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
984: # unproctored slot access, self checkin
985: &Apache::bridgetask::check_in('problem',undef,undef,
986: $slot_name);
987: }
1.368 albertel 988: $result.="\n $form_tag_start \t".
1.227 albertel 989: '<input type="hidden" name="submitted" value="yes" />';
990: # create a page header and exit
1.284 albertel 991: if ($env{'request.state'} eq "construct") {
992: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 993: if ($Apache::lonhomework::type eq 'practice') {
994: $result.= '<input type="submit" name="resetdata" '.
995: 'value="'.&mt('New Problem Variation').'" />'.
996: &practice_problem_header().'<hr />';
997: }
1.227 albertel 998: }
999: # if we are viewing someone else preserve that info
1.284 albertel 1000: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1001: foreach my $field ('symb','courseid','domain','username') {
1002: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1003: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1004: }
1005: }
1006: } elsif ($target eq 'tex') {
1.319 foxr 1007: $result .= 'INSERTTEXFRONTMATTERHERE';
1008:
1.99 sakharuk 1009: }
1.159 albertel 1010: } elsif ($target eq 'edit') {
1.343 albertel 1011: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1012: $Apache::lonxml::warnings_error_header=
1013: &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 1014: my $temp=&Apache::edit::insertlist($target,$token);
1015: $result.=$temp;
1016: } elsif ($target eq 'modified') {
1017: $result=$token->[4];
1018: } else {
1019: # page_start returned a starting result, delete it if we don't need it
1020: $result = '';
1.99 sakharuk 1021: }
1.159 albertel 1022: return $result;
1.9 albertel 1023: }
1024:
1025: sub end_problem {
1.159 albertel 1026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1027: my $result;
1.310 foxr 1028:
1.321 albertel 1029: if (!$Apache::lonxml::metamode) {
1030: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1031: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1032: }
1.319 foxr 1033:
1034: if ($target eq 'tex') {
1.321 albertel 1035: # Figure out the front matter and replace the
1036: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1037: # this in end_problem because whether or not we display due
1038: # dates depends on whether due dates have already been
1039: # displayed in the problem parts.
1040:
1.319 foxr 1041: my $frontmatter = '';
1042: my $startminipage = '';
1043: if (not $env{'form.problem_split'}=~/yes/) {
1044: $startminipage = '\begin{minipage}{\textwidth}';
1045: }
1046: my $id = $Apache::inputtags::part;
1047: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1048: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1049: my @packages = split /,/,$packages;
1050: my $allow_print_points = 0;
1051: foreach my $partial_key (@packages) {
1052: if ($partial_key=~m/^part_0$/) {
1053: $allow_print_points=1;
1054: }
1055: }
1056: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1057: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1058: if (lc($env{'course.'.$env{'request.course.id'}.
1059: '.disableexampointprint'}) eq 'yes') {
1060: $allow_print_points=0;
1061: }
1062: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1063: 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 1064: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1065: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1066:
1067: # Figure out what the due date is and if we need to print
1068: # it in the problem header. We have been logging the
1069: # last due date written to file.
1070:
1.444.4.1 raeburn 1071: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1.319 foxr 1072: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.444.4.1 raeburn 1073: my $duedate_text = &mt('Due date: [_1]'
1074: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1075: my $temp_file;
1076: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1077:
1078: # Figure out what the last printed due date is or set it
1079: # to the epoch if no duedates have been printed.
1080:
1081: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1082: if (-e $filename) {
1083: $temp_file = Apache::File->new($filename);
1084: my @due_file = <$temp_file>;
1085: $due_file_content = $due_file[$#due_file];
1086: chomp $due_file_content;
1087: }
1088:
1089: # We display the due date iff it is not the same as the last
1090: # duedate in problem header ($due_file_content), and
1091: # none of our parts displayed a duedate.
1092: #
1093: my $parts_with_displayduedate;
1094: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1095: $parts_with_displayduedate =
1096: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1097: } else {
1098: $parts_with_displayduedate = 0;
1099: }
1100: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1101: $temp_file = Apache::File->new('>'.$filename);
1102: print $temp_file "$duetime\n";
1103: if (not $env{'request.symb'} =~ m/\.page_/) {
1104: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1105: $frontmatter .= $begin_doc.
1.444.4.1 raeburn 1106: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1107: } else {
1108: $frontmatter.= $begin_doc.$toc_line;
1.444.4.3 raeburn 1109: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1110: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1111: }
1.319 foxr 1112: }
1113: } else {
1.444.4.1 raeburn 1114: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1115: }
1116: } else {
1117: if (not $env{'request.symb'} =~ m/\.page_/) {
1118: $frontmatter .= $begin_doc.$toc_line;
1.444.4.3 raeburn 1119: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1120: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1121: }
1.319 foxr 1122: } else {
1.381 albertel 1123: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1124: }
1125: }
1126: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1127: }
1128:
1.159 albertel 1129: my $status=$Apache::inputtags::status['-1'];
1130: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1131: $target eq 'tex') {
1.249 albertel 1132: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1133: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1134: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1135: &Apache::inputtags::grade;
1.324 albertel 1136: } elsif ($status eq 'NEEDS_CHECKIN') {
1137: # no need to grade, and don't want to hide data
1.249 albertel 1138: } else {
1139: # move any submission data to .hidden
1140: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1141: }
1.159 albertel 1142: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1143: $Apache::inputtags::part eq '0' &&
1.252 albertel 1144: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1145: # if part is zero, no <part>s existed, so we need show the current
1146: # grading status
1147: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1148: $result.= $gradestatus;
1149: }
1150: if (
1.284 albertel 1151: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1152: ($target eq 'answer') || ($target eq 'tex')
1153: ) {
1.227 albertel 1154: if ($target ne 'tex' &&
1.284 albertel 1155: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1156: $result.="</form>";
1.348 albertel 1157: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1158: }
1159: if ($target eq 'web') {
1.346 albertel 1160: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1161: } elsif ($target eq 'tex') {
1.178 sakharuk 1162: my $endminipage = '';
1.284 albertel 1163: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1164: $endminipage = '\end{minipage}';
1165: }
1.284 albertel 1166: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1167: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1168: } else {
1.262 sakharuk 1169: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1170: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1171: $result .= $endminipage.'\end{document} ';
1172: } else {
1.382 albertel 1173: $result .= $endminipage;
1.262 sakharuk 1174: }
1.159 albertel 1175: }
1176: }
1177: }
1178: if ($target eq 'grade') {
1179: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1180: &finalize_storage();
1181: }
1.284 albertel 1182: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1183: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1184: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1185: # normally we get it from above, but in CSTR
1.172 albertel 1186: # we always show answer mode too.
1.159 albertel 1187: }
1188: } elsif ($target eq 'meta') {
1189: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1190: @Apache::inputtags::response=();
1.159 albertel 1191: $result=&Apache::response::mandatory_part_meta;
1192: }
1.215 albertel 1193: $result.=&Apache::response::meta_part_order();
1.258 albertel 1194: $result.=&Apache::response::meta_response_order();
1.159 albertel 1195: } elsif ($target eq 'edit') {
1196: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1197: $result .= &problem_edit_footer();
1.320 albertel 1198: } elsif ($target eq 'modified') {
1199: $result .= $token->[2];
1.159 albertel 1200: }
1.155 albertel 1201:
1.284 albertel 1202: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1203: &Apache::inputtags::check_for_duplicate_ids();
1204: }
1.204 albertel 1205:
1206: &reset_problem_globals('problem');
1.159 albertel 1207:
1208: return $result;
1.48 albertel 1209: }
1210:
1.108 albertel 1211:
1.48 albertel 1212: sub start_library {
1.159 albertel 1213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1214: my ($result,$form_tag_start);
1.371 albertel 1215: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1216: &init_problem_globals('library');
1217: $Apache::lonhomework::type='problem';
1218: }
1.159 albertel 1219: if ($target eq 'edit') {
1.343 albertel 1220: ($result,$form_tag_start)=
1221: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1222: 'Edit');
1223: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1224: my $temp=&Apache::edit::insertlist($target,$token);
1225: $result.=$temp;
1226: } elsif ($target eq 'modified') {
1227: $result=$token->[4];
1.340 albertel 1228: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1229: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1230: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1231: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1232: ($result,$form_tag_start)=
1233: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1234: $name);
1.159 albertel 1235: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1236: $result.=" \n $form_tag_start".
1.159 albertel 1237: '<input type="hidden" name="submitted" value="yes" />';
1238: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1239: if ($Apache::lonhomework::type eq 'practice') {
1240: $result.= '<input type="submit" name="resetdata" '.
1241: 'value="'.&mt('New Problem Variation').'" />'.
1242: &practice_problem_header().'<hr />';
1243: }
1.159 albertel 1244: }
1245: return $result;
1.48 albertel 1246: }
1247:
1248: sub end_library {
1.159 albertel 1249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1250: my $result='';
1251: if ($target eq 'edit') {
1252: $result=&problem_edit_footer();
1.371 albertel 1253: } elsif ($target eq 'web'
1254: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1255: && $env{'request.state'} eq "construct") {
1.349 albertel 1256: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1257: }
1.371 albertel 1258: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1259: &reset_problem_globals('library');
1260: }
1.159 albertel 1261: return $result;
1.197 www 1262: }
1263:
1264: sub start_definetag {
1.326 albertel 1265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1266:
1267: my $result;
1268:
1269: my $name = $token->[2]->{'name'};
1.326 albertel 1270: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1271: if ($target eq 'web') {
1272: if ($name=~/^\//) {
1273: $result=
1274: '<br /><table class="LC_sty_end"><tr><th>'.
1275: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1276: } else {
1277: $result=
1278: '<br /><table class="LC_sty_begin"><tr><th>'.
1279: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1280: }
1281: $skip = &HTML::Entities::encode($skip, '<>&"');
1282: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1283: }
1284: return $result;
1285: }
1286:
1287: sub end_definetag {
1288: return '';
1.1 albertel 1289: }
1290:
1291: sub start_block {
1.201 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1293:
1294: my $result;
1.1 albertel 1295:
1.339 albertel 1296: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1297: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1298: my $code = $token->[2]->{'condition'};
1.385 albertel 1299: if (defined($code) && $code ne '') {
1.137 albertel 1300: if (!$Apache::lonxml::default_homework_loaded) {
1301: &Apache::lonxml::default_homework_load($safeeval);
1302: }
1.131 albertel 1303: $result = &Apache::run::run($code,$safeeval);
1304: &Apache::lonxml::debug("block :$code: returned :$result:");
1305: } else {
1306: $result='1';
1307: }
1308: if ( ! $result ) {
1.201 albertel 1309: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1310: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1311: }
1312: $result='';
1313: } elsif ($target eq 'edit') {
1314: $result .=&Apache::edit::tag_start($target,$token);
1315: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1316: $token,40);
1317: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1318: } elsif ($target eq 'modified') {
1319: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1320: $safeeval,'condition');
1321: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1322: }
1.131 albertel 1323: return $result;
1.1 albertel 1324: }
1325:
1326: sub end_block {
1.167 www 1327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1328: my $result;
1329: if ($target eq "edit") {
1330: $result.= &Apache::edit::tag_end($target,$token,'');
1331: }
1332: return $result;
1333: }
1334:
1335: sub start_languageblock {
1.201 albertel 1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1337:
1338: my $result;
1339:
1.339 albertel 1340: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1341: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1342: my $include = $token->[2]->{'include'};
1343: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1344: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1345: # This should not even happen, since we should at least have the server language
1.398 www 1346: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1347: # Now loop over all languages in order of preference
1348: foreach my $preferred_language (@preferred_languages) {
1.394 www 1349: # If the languageblock has no arguments, show the contents
1.399 www 1350: $result=1;
1351: my $found=0;
1.394 www 1352: # Do we have an include argument?
1.398 www 1353: if ($include) {
1.394 www 1354: # If include is specified, by default, don't render the block
1.399 www 1355: $result=0;
1.398 www 1356: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1357: # ... but if my preferred language is included, render it
1.398 www 1358: if ($included_language eq $preferred_language) {
1.399 www 1359: $result=1;
1360: $found=1;
1.398 www 1361: }
1362: }
1363: }
1.394 www 1364: # Do we have an exclude argument?
1.398 www 1365: if ($exclude) {
1.399 www 1366: $result=1;
1.398 www 1367: foreach my $excluded_language (split(/\,/,$exclude)) {
1368: if ($excluded_language eq $preferred_language) {
1.399 www 1369: $result=0;
1370: $found=1;
1.398 www 1371: }
1372: }
1373: }
1.399 www 1374: if ($found) { last; }
1.398 www 1375: }
1.201 albertel 1376: if ( ! $result ) {
1377: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1378: $style);
1379: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1380: }
1381: $result='';
1.167 www 1382: } elsif ($target eq 'edit') {
1383: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1384: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1385: $token,40);
1.211 albertel 1386: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1387: $token,40);
1388: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1389: } elsif ($target eq 'modified') {
1390: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1391: $safeeval,'include',
1392: 'exclude');
1.167 www 1393: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1394: }
1395: return $result;
1396: }
1397:
1398: sub end_languageblock {
1.170 www 1399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1400: my $result;
1.201 albertel 1401: if ($target eq "edit") {
1.170 www 1402: $result.= &Apache::edit::tag_end($target,$token,'');
1403: }
1404: return $result;
1405: }
1406:
1.397 albertel 1407: {
1408: my %available_texts;
1409: sub start_translated {
1410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1411: &Apache::lonxml::register('Apache::structuretags',('lang'));
1412: undef(%available_texts);
1413: }
1414:
1415: sub end_translated {
1416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1417: my $result;
1418: #show the translation on viewable targets
1419: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1420: # or non-viewable targets, if it's embedded in something that
1421: # wants the output
1422: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1423: && &Apache::lonxml::in_redirection() ) ) {
1424: my @possibilities = keys(%available_texts);
1425: my $which =
1426: &Apache::loncommon::languages(\@possibilities) || 'default';
1427: $result = $available_texts{$which};
1428: }
1429: undef(%available_texts);
1430: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1431: return $result;
1432: }
1433:
1434:
1435: sub start_lang {
1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1438: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1439: &Apache::lonxml::startredirection();
1440: }
1441: return '';
1442: }
1443:
1444: sub end_lang {
1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1446: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1447: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1448: my $result = &Apache::lonxml::endredirection();
1449: my $which = &Apache::lonxml::get_param('which',$parstack,
1450: $safeeval);
1.431 raeburn 1451: if ($which=~/\w/) {
1452: $available_texts{$which} = $result;
1453: }
1454: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1455: $safeeval);
1456: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1457: if ($language=~/\w/) {
1458: $available_texts{$language} = $result;
1459: }
1.427 bisitz 1460: }
1461:
1.397 albertel 1462: }
1463: return '';
1464: }
1465: }
1466:
1.170 www 1467: sub start_instructorcomment {
1.201 albertel 1468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1469:
1470: my $result;
1471:
1.339 albertel 1472: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1473: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1474: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1475: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1476: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1477: $parser,$style);
1.170 www 1478: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1479: }
1480: $result='';
1481: } elsif ($target eq 'edit') {
1482: $result .=&Apache::edit::tag_start($target,$token);
1483: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1484: }
1485: return $result;
1486: }
1487:
1488: sub end_instructorcomment {
1.159 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1490: my $result;
1491: if ($target eq "edit") {
1492: $result.= &Apache::edit::tag_end($target,$token,'');
1493: }
1494: return $result;
1.4 tsai 1495: }
1496:
1497: sub start_while {
1.326 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1499:
1.160 albertel 1500: my $result;
1.339 albertel 1501: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1502: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1503: my $code = $token->[2]->{'condition'};
1.4 tsai 1504:
1.160 albertel 1505: push( @Apache::structuretags::whileconds, $code);
1506: if (!$Apache::lonxml::default_homework_loaded) {
1507: &Apache::lonxml::default_homework_load($safeeval);
1508: }
1509: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1510: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1511: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1512: push( @Apache::structuretags::whileline, $token->[5]);
1513: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1514: if ( $result ) {
1515: &Apache::lonxml::newparser($parser,\$bodytext);
1516: }
1517: } elsif ($target eq 'edit') {
1518: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1519: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1520: $token,40);
1521: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1522: } elsif ($target eq 'modified') {
1523: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1524: $safeeval,'condition');
1525: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1526: }
1.160 albertel 1527: return $result;
1.4 tsai 1528: }
1529:
1530: sub end_while {
1.159 albertel 1531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1532: my $result;
1533:
1.339 albertel 1534: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1535: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1536: my $code = pop(@Apache::structuretags::whileconds);
1537: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1538: my $line = pop(@Apache::structuretags::whileline);
1539: my $return = &Apache::run::run($code,$safeeval);
1540: my $starttime=time;
1541: my $error=0;
1542: while ($return) {
1543: if (time-$starttime >
1544: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1545: $return = 0; $error=1; next;
1.161 albertel 1546: }
1547: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1548: if ($target eq 'grade' || $target eq 'answer' ||
1549: $target eq 'analyze') {
1550: # grade/answer/analyze should produce no output but if we
1551: # are redirecting, the redirecter should know what to do
1552: # with the output
1553: if (!$Apache::lonxml::redirection) { undef($result); }
1554: }
1.161 albertel 1555: $return = &Apache::run::run($code,$safeeval);
1556: }
1557: if ($error) {
1.430 bisitz 1558: &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 1559: }
1560: } elsif ($target eq "edit") {
1561: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1562: }
1.160 albertel 1563: return $result;
1.1 albertel 1564: }
1.6 tsai 1565:
1.160 albertel 1566: # <randomlist show="1">
1.6 tsai 1567: # <tag1>..</tag1>
1568: # <tag2>..</tag2>
1569: # <tag3>..</tag3>
1.160 albertel 1570: # ...
1.6 tsai 1571: # </randomlist>
1572: sub start_randomlist {
1.326 albertel 1573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1574: my $result;
1.339 albertel 1575: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1576: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1577: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1578: my $b_parser= HTML::LCParser->new(\$body);
1579: $b_parser->xml_mode(1);
1580: $b_parser->marked_sections(1);
1.159 albertel 1581: my $b_tok;
1582: my @randomlist;
1583: my $list_item;
1584: while($b_tok = $b_parser->get_token() ) {
1585: if($b_tok->[0] eq 'S') { # start tag
1586: # get content of the tag until matching end tag
1587: # get all text upto the matching tag
1588: # and push the content into @randomlist
1589: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1590: $b_parser);
1591: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1592: push(@randomlist,$list_item);
1593: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1594: # $list_item</b>";
1595: }
1596: if($b_tok->[0] eq 'T') { # text
1597: # what to do with text in between tags?
1598: # print "<b>TEXT $b_tok->[1]</b><br />";
1599: }
1600: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1601: # print "<b>END-TAG $b_tok->[1]</b><br />";
1602: # }
1603: }
1.303 albertel 1604: if (@randomlist) {
1605: my @idx_arr = (0 .. $#randomlist);
1606: &Apache::structuretags::shuffle(\@idx_arr);
1607: my $bodytext = '';
1608: my $show=$#randomlist;
1609: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1610: $showarg--;
1611: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1612: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1613: my @currlist;
1614: my $part = $Apache::inputtags::part;
1615: if ($part ne '') {
1616: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1617: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1618: if (!(grep(/^\Q$part\E$/,@currlist))) {
1619: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1620: }
1621: } else {
1622: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1623: }
1624: }
1625: }
1.303 albertel 1626: for(0 .. $show) {
1627: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1628: }
1629: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1630: }
1631: } elsif ($target eq 'edit' ) {
1632: $result .=&Apache::edit::tag_start($target,$token);
1633: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1634: $token,5);
1635: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1636: } elsif ($target eq 'modified' ) {
1637: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1638: $safeeval,'show');
1639: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1640: }
1641: return $result;
1.7 tsai 1642: }
1643:
1644: sub shuffle {
1645: my $a=shift;
1646: my $i;
1.303 albertel 1647: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1648: &Apache::response::pushrandomnumber();
1.159 albertel 1649: for($i=@$a;--$i;) {
1650: my $j=int(&Math::Random::random_uniform() * ($i+1));
1651: next if $i == $j;
1652: @$a[$i,$j] = @$a[$j,$i];
1653: }
1.251 albertel 1654: &Apache::response::poprandomnumber();
1.7 tsai 1655: }
1.6 tsai 1656: }
1657:
1658: sub end_randomlist {
1.159 albertel 1659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1660: my $result;
1661: if ($target eq 'edit' ) {
1662: $result=&Apache::edit::tag_end($target,$token,
1663: 'End Randomly Parsed Block');
1664: }
1665: return $result;
1.6 tsai 1666: }
1667:
1.283 albertel 1668: sub ordered_show_check {
1669: my $last_part=$Apache::inputtags::partlist[-2];
1670: my $in_order=
1671: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1672: my $in_order_show=1;
1673: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1674: $in_order_show=&Apache::response::check_status($last_part);
1675: }
1676: return $in_order_show;
1677: }
1678:
1.11 albertel 1679: sub start_part {
1.326 albertel 1680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1681: if (!$Apache::lonxml::metamode) {
1682: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1683: # duedates.
1684: }
1.159 albertel 1685: my $result='';
1.386 albertel 1686: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1687: $Apache::inputtags::part=$id;
1.177 albertel 1688: push(@Apache::inputtags::partlist,$id);
1689: @Apache::inputtags::response=();
1.159 albertel 1690: @Apache::inputtags::previous=();
1691: @Apache::inputtags::previous_version=();
1.405 albertel 1692: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1693: &Apache::response::reset_params();
1694:
1.159 albertel 1695: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1696: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1697: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1698: my $in_order_show=&ordered_show_check();
1.214 albertel 1699: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1700: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1701: &Apache::run::run($expression,$safeeval);
1.159 albertel 1702:
1703: if ($target eq 'meta') {
1.224 www 1704: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1705: return &Apache::response::mandatory_part_meta.
1706: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1707: } elsif ($target eq 'web' || $target eq 'grade' ||
1708: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1709: if ($hidden || !$in_order_show) {
1.326 albertel 1710: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1711: } else {
1712: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1713: push (@Apache::inputtags::status,$status);
1714: my $expression='$external::datestatus="'.$status.'";';
1715: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1716: &Apache::run::run($expression,$safeeval);
1.284 albertel 1717: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1718: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1719: }
1.216 albertel 1720: if (( $status eq 'CLOSED' ) ||
1721: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1722: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1723: ( $status eq 'BANNED') ||
1724: ( $status eq 'UNAVAILABLE') ||
1725: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1726: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1727: $style);
1.159 albertel 1728: if ( $target eq "web" ) {
1.211 albertel 1729: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1730: } elsif ( $target eq 'tex' ) {
1.284 albertel 1731: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1732: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1733: } else {
1.211 albertel 1734: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1735: }
1.159 albertel 1736: }
1737: } else {
1738: if ($target eq 'tex') {
1.284 albertel 1739: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1740: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1741: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1742: } else {
1743: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1744: }
1.195 sakharuk 1745: }
1.159 albertel 1746: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1747: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1748: my @allkeys = split /,/,$allkeys;
1749: my $allow_print_points = 0;
1750: foreach my $partial_key (@allkeys) {
1.230 albertel 1751: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1752: if ($1 ne '0') {$allow_print_points=1;}
1753: }
1754: }
1.275 albertel 1755: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1756: if (defined($maxtries) && $maxtries < 0) {
1757: $allow_print_points=0;
1758: }
1.302 albertel 1759: if (lc($env{'course.'.$env{'request.course.id'}.
1760: '.disableexampointprint'}) eq 'yes') {
1761: $allow_print_points=0;
1762: }
1.444.4.3 raeburn 1763: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1764: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1765: }
1.233 www 1766: } elsif ($target eq 'web') {
1.356 www 1767: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1768: }
1769: }
1770: }
1771: } elsif ($target eq 'edit') {
1772: $result.=&Apache::edit::tag_start($target,$token);
1773: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1774: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1775: ' '.
1776: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1777: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1778: } elsif ($target eq 'modified') {
1779: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1780: $safeeval,'id','display');
1.159 albertel 1781: if ($constructtag) {
1.225 albertel 1782: #limiting ids to only letters numbers, and space
1.224 www 1783: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1784: $result = &Apache::edit::rebuild_tag($token);
1785: }
1786: }
1787: return $result;
1.11 albertel 1788: }
1789:
1790: sub end_part {
1.159 albertel 1791: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1792: &Apache::lonxml::debug("in end_part $target ");
1793: my $status=$Apache::inputtags::status['-1'];
1794: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1795: my $in_order_show=&ordered_show_check();
1.321 albertel 1796: my $result;
1797: if (!$Apache::lonxml::metamode) {
1798: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1799: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1800: }
1.312 albertel 1801: if ($target eq 'grade') {
1.249 albertel 1802: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1803: !$hidden && $in_order_show) {
1.311 foxr 1804: $result.=&Apache::inputtags::grade;
1.249 albertel 1805: } else {
1806: # move any submission data to .hidden
1807: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1808: }
1.283 albertel 1809: } elsif (($target eq 'web' || $target eq 'tex') &&
1810: !$hidden && $in_order_show) {
1.159 albertel 1811: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1812: $target);
1.212 albertel 1813: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1814: $gradestatus='';
1815: }
1.311 foxr 1816: $result.=$gradestatus;
1.265 sakharuk 1817: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1818: } elsif ($target eq 'edit') {
1.311 foxr 1819: $result.=&Apache::edit::end_table();
1.322 albertel 1820: } elsif ($target eq 'modified') {
1821: $result .= $token->[2];
1.159 albertel 1822: }
1823: pop @Apache::inputtags::status;
1824: $Apache::inputtags::part='';
1.295 albertel 1825: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1826: return $result;
1.11 albertel 1827: }
1.1 albertel 1828:
1.25 albertel 1829: sub start_preduedate {
1.326 albertel 1830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1831: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1832: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1833: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1834: if (!$Apache::lonhomework::scantronmode &&
1835: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1836: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1837: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1838: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1839: }
1.24 albertel 1840: }
1.159 albertel 1841: return '';
1.24 albertel 1842: }
1843:
1.25 albertel 1844: sub end_preduedate {
1.159 albertel 1845: return '';
1.24 albertel 1846: }
1847:
1.369 foxr 1848: # In all the modes where <postanswerdate> text is
1849: # displayable, all we do is eat up the text between the start/stop
1850: # tags if the conditions are not right to display it.
1.25 albertel 1851: sub start_postanswerdate {
1.326 albertel 1852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1853: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1854: &Apache::lonnet::allowed('pav',
1855: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1856: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1857: $target eq 'tex' ) {
1.300 albertel 1858: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1859: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1860: (($target eq 'tex') && !$pav)) {
1.326 albertel 1861: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1862: }
1863: }
1864: return '';
1.24 albertel 1865: }
1866:
1.25 albertel 1867: sub end_postanswerdate {
1.159 albertel 1868: return '';
1.24 albertel 1869: }
1870:
1.25 albertel 1871: sub start_notsolved {
1.326 albertel 1872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1873: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1874: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1875: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1876: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1877: if ($gradestatus =~ /^correct/ &&
1878: &Apache::response::show_answer()) {
1.159 albertel 1879: &Apache::lonxml::debug("skipping");
1.326 albertel 1880: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1881: }
1.24 albertel 1882: }
1.159 albertel 1883: return '';
1.24 albertel 1884: }
1885:
1.25 albertel 1886: sub end_notsolved {
1.159 albertel 1887: return '';
1.24 albertel 1888: }
1889:
1890: sub start_solved {
1.326 albertel 1891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1892: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1893: $target eq 'tex') {
1894: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1895: if ($gradestatus !~ /^correct/ ||
1896: !&Apache::response::show_answer()) {
1.326 albertel 1897: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1898: }
1.24 albertel 1899: }
1.159 albertel 1900: return '';
1.24 albertel 1901: }
1902:
1903: sub end_solved {
1.248 albertel 1904: return '';
1905: }
1906:
1907: sub start_problemtype {
1.326 albertel 1908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1909: my $result;
1.339 albertel 1910: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1911: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1912: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1913: if (!defined($mode)) { $mode='show'; }
1914: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1915: my $found=0;
1916: foreach my $type (split(',',$for)) {
1917: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1918: }
1919: if ($mode eq 'show' && !$found) {
1.326 albertel 1920: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1921: }
1922: if ($mode eq 'hide' && $found) {
1.326 albertel 1923: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1924: }
1925: } elsif ($target eq 'edit') {
1926: $result .=&Apache::edit::tag_start($target,$token);
1927: $result.=&Apache::edit::select_arg('Mode:','mode',
1928: [['show','Show'],
1929: ['hide','Hide']]
1930: ,$token);
1931: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1932: [ ['exam','Exam/Quiz Problem'],
1933: ['survey','Survey'],
1.428 raeburn 1934: ['problem','Homework Problem'],
1935: ['practice','Practice Problem'] ]
1.248 albertel 1936: ,$token);
1937: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1938: } elsif ($target eq 'modified') {
1939: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1940: $safeeval,'mode','for');
1941: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1942: }
1943: return $result;
1944: }
1945:
1946: sub end_problemtype {
1.159 albertel 1947: return '';
1.24 albertel 1948: }
1.34 albertel 1949:
1950: sub start_startouttext {
1.159 albertel 1951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1952: my @result=(''.'');
1953: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1954:
1955: my $nesting =
1956: &Apache::lonxml::set_state('outtext',
1957: &Apache::lonxml::get_state('outtext')+1);
1958: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1959: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1960: }
1.159 albertel 1961: return (@result);
1.34 albertel 1962: }
1.159 albertel 1963:
1.34 albertel 1964: sub end_startouttext {
1.326 albertel 1965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1966: my $result='';
1967: my $text='';
1968: if ($target eq 'edit') {
1.424 foxr 1969: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1970: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1971: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1972: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1973: .&Apache::edit::deletelist($target,$token)
1974: .'</span></td>';
1.425 raeburn 1975: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1976: $result .= '<td align="left">'
1977: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1978: .'</td>'
1979: .'<td>'
1980: .&Apache::edit::insertlist($target,$token)
1981: .'</td>';
1982: }
1.425 raeburn 1983: $result.='<td align="right" valign="top">' .
1.434 foxr 1984: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1985: &Apache::edit::end_row().
1.362 albertel 1986: &Apache::edit::start_spanning_row()."\n".
1.255 www 1987: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1988: }
1989: if ($target eq 'modified') {
1.219 albertel 1990: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1991: }
1992: if ($target eq 'tex') {
1993: $result .= '\noindent ';
1994: }
1995: return $result;
1.34 albertel 1996: }
1.159 albertel 1997:
1.34 albertel 1998: sub start_endouttext {
1.159 albertel 1999: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2000: my $result='';
2001: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2002: if ($target eq "modified") {
2003: $result='<endouttext />'.
1.377 albertel 2004: &Apache::edit::handle_insertafter('startouttext');
2005: }
1.404 albertel 2006:
2007: my $nesting =
2008: &Apache::lonxml::set_state('outtext',
2009: &Apache::lonxml::get_state('outtext')-1);
2010: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2011: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2012: &Apache::lonxml::set_state('outtext', 0);
2013: }
1.159 albertel 2014: return $result;
1.34 albertel 2015: }
1.159 albertel 2016:
1.34 albertel 2017: sub end_endouttext {
1.159 albertel 2018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2019: my @result=('','');
2020: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2021: return (@result);
1.34 albertel 2022: }
1.159 albertel 2023:
1.45 albertel 2024: sub delete_startouttext {
1.326 albertel 2025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2026: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2027: my $text=$$parser['-1']->get_text("/endouttext");
2028: my $ntoken=$$parser['-1']->get_token();
2029: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2030: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2031: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2032: # they did the last time round
2033: &Apache::lonxml::increasedepth($ntoken);
2034: &Apache::lonxml::decreasedepth($ntoken);
2035: return 1;
1.193 www 2036: }
2037:
2038: sub start_simpleeditbutton {
2039: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2040: my $result='';
1.284 albertel 2041: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2042: ($target eq 'web') &&
1.330 albertel 2043: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2044: my $url=$env{'request.noversionuri'};
1.193 www 2045: $url=~s/\?.*$//;
1.367 albertel 2046: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2047: # Warning make more sense and is more important on edit screen
2048: # $result='<p class="LC_warning">'
2049: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2050: # .&Apache::loncommon::help_open_topic('Caching')
2051: # .'</p>';
1.444.4.4 raeburn 2052: $result .= '<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
2053: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.
1.444.4.5! raeburn 2054: &mt('Edit').'</a></td></tr></table><br />';
1.442 bisitz 2055:
1.193 www 2056: }
2057: return $result;
2058: }
2059:
2060: sub end_simpleeditbutton {
2061: return '';
1.45 albertel 2062: }
1.34 albertel 2063:
1.428 raeburn 2064: sub practice_problem_header {
2065: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2066: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2067: '</span>';
2068: }
2069:
1.1 albertel 2070: 1;
2071: __END__
1.435 jms 2072:
2073: =pod
2074:
2075: =back
2076:
2077: =cut
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