Annotation of loncom/homework/structuretags.pm, revision 1.464
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.464 ! raeburn 4: # $Id: structuretags.pm,v 1.463 2009/12/07 11:46:33 foxr 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:
1.446 bisitz 206: my $pageheader = '';
1.344 albertel 207: if (defined($found{'body'})) {
208: $body_args{'skip_phases'}{'body'}=1;
209: } elsif (!defined($found{'body'})
210: && $env{'request.state'} eq 'construct') {
1.343 albertel 211: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 212: if ($env{'environment.remote'} ne 'off') {
213: $body_args{'only_body'} = 1;
214: }
1.450 bisitz 215: # Breadcrumbs for Construction Space
216: &Apache::lonhtmlcommon::clear_breadcrumbs();
217: &Apache::lonhtmlcommon::add_breadcrumb({
218: 'text' => 'Construction Space',
219: 'href' => &Apache::loncommon::authorspace(),
220: });
1.460 droeschl 221: # breadcrumbs (and tools) will be created
222: # in start_page->bodytag->innerregister
223:
1.450 bisitz 224: # FIXME Where are we?
225: # &Apache::lonhtmlcommon::add_breadcrumb({
226: # 'text' => 'Problem Editing', # 'Problem Testing'
227: # 'href' => '',
228: # });
1.460 droeschl 229: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 230: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 231: }
1.272 albertel 232: } elsif (!defined($found{'body'})) {
1.343 albertel 233: my %add_entries;
1.159 albertel 234: my $background=&Apache::lonxml::get_param('background',$parstack,
235: $safeeval);
1.343 albertel 236: if ($background ne '' ) {
237: $add_entries{'background'} = $background;
238: }
1.344 albertel 239:
1.290 albertel 240: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
241: $safeeval);
1.446 bisitz 242: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 243:
1.446 bisitz 244: $body_args{'bgcolor'} = $bgcolor;
245: # $body_args{'no_title'} = 1;
246: $body_args{'force_register'} = 1;
247: $body_args{'add_entries'} = \%add_entries;
248: if ($env{'environment.remote'} eq 'off'
249: && $env{'request.state'} eq 'construct') {
250: $body_args{'only_body'} = 1;
251: }
1.344 albertel 252: }
1.365 albertel 253: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 254: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
255: \%body_args);
1.446 bisitz 256: $page_start .= $pageheader;
1.462 raeburn 257: if (!defined($found{'body'})
258: && $env{'request.state'} ne 'construct'
259: && ($target eq 'web' || $target eq 'webgrade')) {
260:
261: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
262: if ($symb eq '' && !$publicuser) {
263: $page_start .= '<p class="LC_info">'
264: .&mt('Browsing resource, all submissions are temporary.')
265: .'</p>';
1.457 bisitz 266: }
1.344 albertel 267: }
268:
1.409 albertel 269: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 270: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 271: }
1.344 albertel 272:
1.159 albertel 273: my $form_tag_start;
274: if (!defined($found{'form'})) {
1.337 albertel 275: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.455 droeschl 276: my $uri = Apache::loncommon::inhibit_menu_check(
277: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 ! raeburn 278: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 279: $form_tag_start.=$uri.'" ';
280: if ($target eq 'edit') {
281: $form_tag_start.=&Apache::edit::form_change_detection();
282: }
1.368 albertel 283: $form_tag_start.='>'."\n";
1.355 albertel 284:
285: my $symb=&Apache::lonnet::symbread();
286: if ($symb =~ /\S/) {
287: $symb=
288: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
289: $form_tag_start.=
1.368 albertel 290: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 291: }
1.159 albertel 292: }
1.343 albertel 293: return ($page_start,$form_tag_start);
1.105 albertel 294: }
295:
1.141 matthew 296: #use Time::HiRes();
1.105 albertel 297: sub get_resource_name {
1.159 albertel 298: my ($parstack,$safeeval)=@_;
1.388 foxr 299: my $name;
1.204 albertel 300: if (defined($Apache::lonhomework::name)) {
1.388 foxr 301: $name = $Apache::lonhomework::name;
302: } else {
303: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 304: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 305: if ($name eq '') {
306: $name=&Apache::lonnet::EXT('resource.title');
307: if ($name eq 'con_lost') { $name = ''; }
308: }
309: if ($name!~/\S+/) {
310: $name=$env{'request.uri'};
311: $name=~s-.*/([^/]+)$-$1-;
312: }
313: # The name has had html tags escaped:
314:
315: $name=~s/</</gs;
316: $name=~s/>/>/gs;
317:
318: $Apache::lonhomework::name=$name;
1.204 albertel 319: }
1.159 albertel 320: return $name;
1.105 albertel 321: }
322:
323: sub setup_rndseed {
1.159 albertel 324: my ($safeeval)=@_;
325: my $rndseed;
1.367 albertel 326: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 327: if ($env{'request.state'} eq "construct"
328: || $symb eq ''
329: || $Apache::lonhomework::type eq 'practice'
330: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 331: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 332: ['rndseed']);
1.284 albertel 333: $rndseed=$env{'form.rndseed'};
1.159 albertel 334: if (!$rndseed) {
1.162 albertel 335: $rndseed=$Apache::lonhomework::history{'rndseed'};
336: if (!$rndseed) {
337: $rndseed=time;
338: }
1.284 albertel 339: $env{'form.rndseed'}=$rndseed;
1.162 albertel 340: }
1.374 albertel 341: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
342: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 343: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 344: srand(time);
345: $rndseed=int(rand(2100000000));
1.284 albertel 346: $env{'form.rndseed'}=$rndseed;
347: delete($env{'form.resetdata'});
348: delete($env{'form.newrandomization'});
1.159 albertel 349: }
1.187 albertel 350: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 351: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 352: }
1.247 albertel 353: if ($Apache::lonhomework::history{'resource.CODE'}) {
354: $rndseed=&Apache::lonnet::rndseed();
355: }
1.221 albertel 356: if ($safeeval) {
357: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 358: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 359: }
1.159 albertel 360: }
361: return $rndseed;
1.105 albertel 362: }
363:
1.268 albertel 364: sub remember_problem_state {
365: return '
1.284 albertel 366: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
367: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
368: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 369: }
370:
1.423 www 371: sub problem_edit_buttons {
372: return '
1.408 albertel 373: <div class="LC_edit_problem_discards">
1.416 raeburn 374: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 375: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 376: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 377: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 378: </div>
379: <div class="LC_edit_problem_saves">
1.416 raeburn 380: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
381: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 382: </div>';
383: }
384:
385: sub problem_edit_header {
386: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
387: &Apache::structuretags::remember_problem_state().'
388: <div class="LC_edit_problem_header">
389: <div class="LC_edit_problem_header_title">
390: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
391: </div>'.
392: &problem_edit_buttons().'
1.459 bisitz 393: <hr style="clear:both;" />
1.409 albertel 394: '.&Apache::lonxml::message_location().'
1.408 albertel 395: </div>
396: '.
1.458 bisitz 397: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 398: }
399:
400: sub problem_edit_footer {
1.412 albertel 401: return '</td></tr></table><br />
402: <div class="LC_edit_problem_footer">
1.453 bisitz 403: <hr />'.
1.423 www 404: &problem_edit_buttons().'
1.459 bisitz 405: <hr style="clear:both;" />
1.412 albertel 406: </div>
407: '.
408:
1.348 albertel 409: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 410: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 411: }
412:
1.235 albertel 413: sub option {
414: my ($value,$name) = @_;
415: my $result ="<option value='".$value."' ";
1.284 albertel 416: if ($env{'form.'.$name} eq $value) {
1.235 albertel 417: $result.=" selected='on' ";
418: }
419: $result.='>';
420: return $result;
421: }
422:
1.105 albertel 423: sub problem_web_to_edit_header {
1.159 albertel 424: my ($rndseed)=@_;
1.406 albertel 425: my $result .= '<div class="LC_edit_problem_header">';
426:
427: if (!$Apache::lonhomework::parsing_a_task) {
428: $result .=
429: '<div class="LC_edit_problem_header_title">'.
430: &mt('Problem Testing').
431: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
432: '</div>';
433: } else {
434: $result .=
435: '<div class="LC_edit_problem_header_title">'.
436: &mt('Task Testing').
437: '</div>';
438: }
439:
1.315 albertel 440: my $show_all_foils_text =
441: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 442: &mt('Show All Instances')
443: : &mt('Show All Foils');
1.315 albertel 444:
1.452 bisitz 445: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
446: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 447: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 448: $show_all.= ' /> '.$show_all_foils_text
449: .'</label></span>';
1.406 albertel 450:
451:
1.384 albertel 452:
1.406 albertel 453: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 454: if (!$Apache::lonhomework::parsing_a_task) {
455: $result.="
1.406 albertel 456: <div class='LC_edit_problem_header_row1'>
457: <span class=\"LC_nobreak\">
1.405 albertel 458: ".&mt("Problem Status:")."
1.235 albertel 459: <select name='problemstate'>
1.270 albertel 460: <option value=''></option>
1.235 albertel 461: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
462: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
463: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
464: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
465: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
466: </select>
1.406 albertel 467: </span>
468: <span class=\"LC_nobreak\">
1.405 albertel 469: ".&mt("Problem Type:")."
1.235 albertel 470: <select name='problemtype'>
1.270 albertel 471: <option value=''></option>
1.242 albertel 472: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 473: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 474: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 475: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 476: </select>
1.406 albertel 477: </span>
478: $show_all
479: </div>
480: <div class='LC_edit_problem_header_row2'>
481: <span class=\"LC_nobreak\">
1.405 albertel 482: ".&mt("Feedback Mode:")."
1.235 albertel 483: <select name='problemstatus'>
484: <option value=''></option>
1.242 albertel 485: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 486: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
487: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 488: </select>
1.406 albertel 489: </span>
490: ";
491:
1.376 albertel 492: } elsif ($Apache::lonhomework::parsing_a_task) {
493: $result.="
1.406 albertel 494: <div class='LC_edit_problem_header_row1'>
495: <span class=\"LC_nobreak\">
1.405 albertel 496: ".&mt("Problem Status:")."
1.376 albertel 497: <select name='problemstate'>
498: <option value=''></option>
499: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
500: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
501: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
502: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
503: </select>
1.406 albertel 504: </span>
505: $show_all
506: ";
507: }
508: $result.='
509: <span class="LC_nobreak">
510: '.&mt('Apply style file: ').'
511: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
512: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
513: </span>
1.422 www 514: </div>
515: <div class="LC_edit_problem_header_row1">'.
516: &Apache::lonxml::renderingoptions().'
1.406 albertel 517: </div>
518: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
519: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
520: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
521: </div>
1.453 bisitz 522: <hr />
1.406 albertel 523: <div class="LC_edit_problem_header_randomize_row">
524: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
525: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
526: <input type="text" name="rndseed" size="10" value="'.
527: $rndseed.'"
528: onchange="javascript:document.lonhomework.changerandseed.click()" />';
529:
530: if (!$Apache::lonhomework::parsing_a_task) {
531: my $numtoanalyze=$env{'form.numtoanalyze'};
532: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 533: $result .= '<span class="LC_nobreak">'.
534: &mt('[_1] for [_2] versions.',
1.416 raeburn 535: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 536: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
537: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 538: $numtoanalyze.'" size="5" />').
539: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
540: '</span>';
541:
1.313 albertel 542: }
1.406 albertel 543:
544: $result.='
545: </div>
1.453 bisitz 546: <hr />
1.447 bisitz 547: <div>';
1.416 raeburn 548: $result.='<input type="hidden" name="problemmode" value="view" />';
549: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
550: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
551: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
552: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 553: $result.='
554: </div>
1.453 bisitz 555: <hr />
1.409 albertel 556: '.&Apache::lonxml::message_location().'
1.406 albertel 557: </div>';
1.159 albertel 558: return $result;
1.48 albertel 559: }
560:
1.65 albertel 561: sub initialize_storage {
1.357 albertel 562: my ($given_symb) = @_;
1.353 albertel 563: undef(%Apache::lonhomework::results);
564: undef(%Apache::lonhomework::history);
1.357 albertel 565: my ($symb,$courseid,$domain,$name) =
1.367 albertel 566: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 567:
568: # anonymous users (CODEd exams) have no data
569: if ($name eq 'anonymous'
570: && !defined($domain)) {
571: return;
572: }
573:
1.333 albertel 574: if ($env{'request.state'} eq 'construct'
575: || $symb eq ''
576: || $Apache::lonhomework::type eq 'practice') {
577:
578: my $namespace = $symb || $env{'request.uri'};
579: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 580: ($env{'form.resetdata'} eq &mt('New Problem Variation')
581: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 582: $env{'form.newrandomization'} eq &mt('New Randomization')) {
583: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
584: &Apache::lonxml::debug("Attempt reset");
585: }
1.159 albertel 586: %Apache::lonhomework::history=
1.333 albertel 587: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 588: my ($temp)=keys %Apache::lonhomework::history ;
589: &Apache::lonxml::debug("Return message of $temp");
590: } else {
591: %Apache::lonhomework::history=
592: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
593: }
1.353 albertel 594:
1.159 albertel 595: #ignore error conditions
1.67 albertel 596: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 597: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 598: }
599:
1.435 jms 600: =pod
601:
602: =item finalize_storage()
603:
604: Stores away the result has to a student's environment
605: checks form.grade_ for specific values, other wises stores
606: to the running users environment
607: Will increment totals for attempts, students, and corrects
608: if running user has student role.
609:
610: =cut
611:
612:
1.65 albertel 613: sub finalize_storage {
1.357 albertel 614: my ($given_symb) = @_;
1.159 albertel 615: my $result;
1.289 albertel 616: if (%Apache::lonhomework::results) {
1.323 albertel 617: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
618: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 619: my ($symb,$courseid,$domain,$name) =
1.367 albertel 620: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 621: if ($env{'request.state'} eq 'construct'
622: || $symb eq ''
623: || $Apache::lonhomework::type eq 'practice') {
624: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 625: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 626: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 627: $namespace,'',$domain,$name);
1.159 albertel 628: &Apache::lonxml::debug('Construct Store return message:'.$result);
629: } else {
630: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
631: $symb,$courseid,$domain,$name);
632: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 633: if ($env{'request.role'} =~/^st/) {
634: &store_aggregates($symb,$courseid);
635: }
1.159 albertel 636: }
1.323 albertel 637: } else {
638: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 639: }
1.159 albertel 640: return $result;
1.65 albertel 641: }
642:
1.435 jms 643: =pod
644:
645: item store_aggregates()
646:
647: Sends hash of values to be incremented in nohist_resourcetracker.db
648: for the course. Increments total number of attempts, unique students
649: and corrects for each part for an instance of a problem, as appropriate.
650:
651: =cut
652:
1.285 raeburn 653: sub store_aggregates {
654: my ($symb,$courseid) = @_;
1.286 albertel 655: my %aggregate;
656: my @parts;
1.288 albertel 657: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
658: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 659: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 660: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 661: push(@parts, $1);
1.285 raeburn 662: }
663: }
1.286 albertel 664: foreach my $part (@parts) {
665: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
666: eq 'APPROX_ANS' ||
667: $Apache::lonhomework::results{'resource.'.$part.'.award'}
668: eq 'EXACT_ANS') {
1.287 albertel 669: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 670: }
1.286 albertel 671: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 672: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 673: } else {
1.293 albertel 674: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 675: if ($last_reset) {
1.293 albertel 676: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 677: $aggregate{$symb."\0".$part."\0users"} = 1;
678: }
679: }
1.285 raeburn 680: }
1.287 albertel 681: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 682: }
1.292 raeburn 683: if (keys (%aggregate) > 0) {
1.289 albertel 684: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 685: $cdomain,$cname);
686: }
687: }
1.289 albertel 688:
1.65 albertel 689: sub checkout_msg {
1.211 albertel 690: my %lt=&Apache::lonlocal::texthash(
691: 'resource'=>'The resource needs to be checked out',
692: '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.',
693: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
694: 'checkout'=>'Check out Exam for Viewing',
695: 'checkout?'=>'Check out Exam?');
1.352 albertel 696: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 697: return (<<ENDCHECKOUT);
1.211 albertel 698: <h2>$lt{'resource'}</h2>
699: <p>$lt{'id_expln'}</p>
1.449 bisitz 700: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 701: <form name="checkout" method="post" action="$uri">
1.91 albertel 702: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 703: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 704: </form>
705: ENDCHECKOUT
706: }
707:
1.252 albertel 708: sub firstaccess_msg {
1.253 albertel 709: my ($time,$symb)=@_;
1.414 albertel 710: my $result;
711: my @interval=&Apache::lonnet::EXT("resource.0.interval");
712: if ($interval[1] eq 'map') {
713: my ($map)=&Apache::lonnet::decode_symb($symb);
714: my $foldertitle=&Apache::lonnet::gettitle($map);
715:
716: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 717: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
718: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
719: ,$foldertitle,$time)."</h2>";
1.414 albertel 720: } elsif ($interval[1] eq 'course') {
721: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 722: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
723: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
724: ,$course,$time)."</h2>";
1.414 albertel 725: } else {
726: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 727: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
728: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
729: ,$title,$time)."</h2>";
1.414 albertel 730: }
1.352 albertel 731: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 732: my $buttontext = &mt('Show Resource');
733: my $timertext = &mt('Start Timer?');
1.414 albertel 734: $result .= (<<ENDCHECKOUT);
1.444 bisitz 735: <form name="markaccess" method="post" action="$uri">
1.252 albertel 736: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 737: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 738: </form>
739: ENDCHECKOUT
1.414 albertel 740: return $result;
1.252 albertel 741: }
742:
1.204 albertel 743: sub init_problem_globals {
744: my ($type)=@_;
745: #initialize globals
1.308 foxr 746: # For problems, we start out in part 0 (outside a <part> tag).
747: # and part 0 is used to describe the main body of the <problem>
748: #
1.204 albertel 749: if ($type eq 'problem') {
750: $Apache::inputtags::part='0';
751: @Apache::inputtags::partlist=('0');
1.405 albertel 752: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 753: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 754:
1.266 albertel 755: } elsif ($type eq 'library') {
1.204 albertel 756: $Apache::inputtags::part='';
757: @Apache::inputtags::partlist=();
1.405 albertel 758: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 759: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 760:
1.304 albertel 761: } elsif ($type eq 'Task') {
762: $Apache::inputtags::part='0';
763: @Apache::inputtags::partlist=('0');
1.405 albertel 764: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 765: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 766: }
767: @Apache::inputtags::responselist = ();
768: @Apache::inputtags::importlist = ();
769: @Apache::inputtags::previous=();
770: @Apache::inputtags::previous_version=();
771: $Apache::structuretags::printanswer='No';
772: @Apache::structuretags::whileconds=();
773: @Apache::structuretags::whilebody=();
774: @Apache::structuretags::whileline=();
775: $Apache::lonhomework::scantronmode=0;
776: undef($Apache::lonhomework::name);
1.358 albertel 777: undef($Apache::lonhomework::default_type);
778: undef($Apache::lonhomework::type);
1.204 albertel 779: }
780:
781: sub reset_problem_globals {
782: my ($type)=@_;
783: undef(%Apache::lonhomework::history);
784: undef(%Apache::lonhomework::results);
785: undef($Apache::inputtags::part);
1.208 albertel 786: #don't undef this, lonhomework.pm takes care of this, we use this to
787: #detect if we try to do 2 problems in one file
788: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 789: undef($Apache::lonhomework::name);
1.358 albertel 790: undef($Apache::lonhomework::default_type);
791: undef($Apache::lonhomework::type);
792: undef($Apache::lonhomework::scantronmode);
793: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 794: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 795: }
796:
1.241 albertel 797: sub set_problem_state {
1.240 albertel 798: my ($part)=@_;
1.284 albertel 799: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 800: $Apache::lonhomework::history{"resource.$part.solved"}=
801: 'correct_by_student';
802: }
803: }
804:
1.241 albertel 805: sub get_problem_status {
806: my ($part)=@_;
1.267 albertel 807: my $problem_status;
1.284 albertel 808: if ($env{'request.state'} eq 'construct' &&
809: defined($env{'form.problemstatus'})) {
810: $problem_status=$env{'form.problemstatus'};
1.267 albertel 811: } else {
812: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
813: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 814: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 815: }
816: return $problem_status;
817: }
818:
1.9 albertel 819: sub start_problem {
1.326 albertel 820: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 821:
1.311 foxr 822: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 823: if (!$Apache::lonxml::metamode) {
824: &Apache::lonxml::startredirection();
825: }
1.311 foxr 826:
1.308 foxr 827: # Problems don't nest and we don't allow more than one <problem> in
828: # a .problem file.
829: #
1.184 albertel 830: if ( $Apache::inputtags::part ne '' ||
831: $Apache::lonhomework::parsing_a_problem) {
832: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 833: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 834: return '';
835: }
1.184 albertel 836:
837: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 838: &init_problem_globals('problem');
1.166 albertel 839:
1.284 albertel 840: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 841: $Apache::lonhomework::scantronmode=1;
842: }
1.161 albertel 843:
1.159 albertel 844: if ($target ne 'analyze') {
1.415 raeburn 845: my $type = &Apache::lonnet::EXT('resource.0.type');
846: $Apache::lonhomework::type=$type;
1.284 albertel 847: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 848: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 849: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 850: }
1.332 albertel 851: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 852: }
1.164 albertel 853: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 854: my $uri=$env{'request.uri'};
1.159 albertel 855: if ($uri=~/\.(\w+)$/) {
856: $Apache::lonhomework::type=$1;
857: &Apache::lonxml::debug("Using type of $1");
858: } else {
859: $Apache::lonhomework::type='problem';
860: &Apache::lonxml::debug("Using default type, problem, :$uri:");
861: }
1.87 albertel 862: }
1.301 albertel 863: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 864:
1.363 albertel 865: &initialize_storage();
1.389 albertel 866: if ($target ne 'analyze'
867: && $env{'request.state'} eq 'construct') {
868: &set_problem_state('0');
869: }
870:
1.366 albertel 871: if ($target eq 'web') {
872: &Apache::lonxml::debug(" grading history ");
873: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
874: }
1.363 albertel 875:
1.159 albertel 876: #added vars to the scripting enviroment
1.213 albertel 877: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 878: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 879: &Apache::run::run($expression,$safeeval);
1.159 albertel 880: my $status;
881: my $accessmsg;
882:
1.343 albertel 883: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 884: my ($result,$form_tag_start);
1.354 albertel 885: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
886: || $target eq 'edit') {
1.350 albertel 887: ($result,$form_tag_start) =
888: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
889: $name);
890: }
891:
1.284 albertel 892: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 893:
894: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
895: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
896: $target eq 'tex') {
897: #handle exam checkout
898: if ($Apache::lonhomework::type eq 'exam') {
899: my $token=
900: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 901: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 902: $token=&Apache::lonxml::maketoken();
903: $Apache::lonhomework::history{"resource.0.outtoken"}=
904: $token;
905: }
1.343 albertel 906: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 907: }
1.284 albertel 908: if ($env{'form.markaccess'}) {
1.414 albertel 909: my @interval=&Apache::lonnet::EXT("resource.0.interval");
910: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 911: }
1.159 albertel 912: #handle rand seed in construction space
913: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 914: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 915: if ($env{'request.state'} ne "construct" &&
916: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 917: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 918: $rndseed.'" />'.
919: '<input type="submit" name="resetdata"
920: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 921: if (exists($env{'form.username'})) {
922: $form_tag_start.=
1.164 albertel 923: '<input type="hidden" name="username"
1.284 albertel 924: value="'.$env{'form.username'}.'" />';
1.334 albertel 925: }
1.462 raeburn 926: if ($env{'request.role.adv'}) {
927: $form_tag_start.= ' <label class="LC_nobreak">'
928: .'<input type="checkbox" name="showallfoils"';
929: if (defined($env{'form.showallfoils'})) {
930: $form_tag_start.=' checked="checked"';
931: }
932: $form_tag_start.= ' /> '
933: .&mt('Show All Foils')
934: .'</label>';
935: }
1.417 www 936: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 937: $form_tag_start.=&practice_problem_header();
1.417 www 938: }
1.462 raeburn 939: $form_tag_start.='<hr />';
1.162 albertel 940: }
1.324 albertel 941:
942: ($status,$accessmsg,my $slot_name,my $slot) =
943: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 944: push (@Apache::inputtags::status,$status);
1.324 albertel 945:
1.159 albertel 946: my $expression='$external::datestatus="'.$status.'";';
947: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
948: &Apache::run::run($expression,$safeeval);
949: &Apache::lonxml::debug("Got $status");
1.324 albertel 950:
1.159 albertel 951: if (( $status eq 'CLOSED' ) ||
952: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 953: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 954: ( $status eq 'BANNED') ||
1.216 albertel 955: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 956: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 957: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 958: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
959: $style);
1.159 albertel 960: if ( $target eq "web" ) {
1.343 albertel 961: my $msg;
1.159 albertel 962: if ($status eq 'UNAVAILABLE') {
1.245 albertel 963: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 964: } elsif ($status eq 'NOT_IN_A_SLOT') {
965: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 966: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 967: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 968: }
1.216 albertel 969: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 970: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 971: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 972: $msg.=&checkout_msg();
1.252 albertel 973: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 974: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 975: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 976: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 977: }
978: $result.=$msg.'<br />';
979: } elsif ($target eq 'tex') {
1.332 albertel 980: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
981: : '\begin{minipage}{\textwidth}';
1.443 foxr 982: $result.='\noindent \vskip 1 mm '.
1.332 albertel 983: $startminipage.'\vskip 0 mm';
1.159 albertel 984: if ($status eq 'UNAVAILABLE') {
1.211 albertel 985: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 986: } else {
1.211 albertel 987: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 988: }
989: }
1.324 albertel 990: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 991: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
992: $style);
1.324 albertel 993: if ($target eq 'web') {
1.375 albertel 994: $result .=
995: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 996: } elsif ($target eq 'grade') {
997: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
998: 'problem');
999: }
1.159 albertel 1000: } elsif ($target eq 'web') {
1.360 albertel 1001: if ($status eq 'CAN_ANSWER'
1002: && $slot_name ne ''
1003: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1004: # unproctored slot access, self checkin
1005: &Apache::bridgetask::check_in('problem',undef,undef,
1006: $slot_name);
1007: }
1.368 albertel 1008: $result.="\n $form_tag_start \t".
1.227 albertel 1009: '<input type="hidden" name="submitted" value="yes" />';
1010: # create a page header and exit
1.284 albertel 1011: if ($env{'request.state'} eq "construct") {
1012: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1013: if ($Apache::lonhomework::type eq 'practice') {
1014: $result.= '<input type="submit" name="resetdata" '.
1015: 'value="'.&mt('New Problem Variation').'" />'.
1016: &practice_problem_header().'<hr />';
1017: }
1.227 albertel 1018: }
1019: # if we are viewing someone else preserve that info
1.284 albertel 1020: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1021: foreach my $field ('symb','courseid','domain','username') {
1022: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1023: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1024: }
1025: }
1026: } elsif ($target eq 'tex') {
1.319 foxr 1027: $result .= 'INSERTTEXFRONTMATTERHERE';
1028:
1.99 sakharuk 1029: }
1.159 albertel 1030: } elsif ($target eq 'edit') {
1.343 albertel 1031: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1032: $Apache::lonxml::warnings_error_header=
1033: &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 1034: my $temp=&Apache::edit::insertlist($target,$token);
1035: $result.=$temp;
1036: } elsif ($target eq 'modified') {
1037: $result=$token->[4];
1038: } else {
1039: # page_start returned a starting result, delete it if we don't need it
1040: $result = '';
1.99 sakharuk 1041: }
1.159 albertel 1042: return $result;
1.9 albertel 1043: }
1044:
1045: sub end_problem {
1.159 albertel 1046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1047: my $result;
1.310 foxr 1048:
1.321 albertel 1049: if (!$Apache::lonxml::metamode) {
1050: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1051: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1052: }
1.319 foxr 1053:
1054: if ($target eq 'tex') {
1.321 albertel 1055: # Figure out the front matter and replace the
1056: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1057: # this in end_problem because whether or not we display due
1058: # dates depends on whether due dates have already been
1059: # displayed in the problem parts.
1060:
1.319 foxr 1061: my $frontmatter = '';
1062: my $startminipage = '';
1063: if (not $env{'form.problem_split'}=~/yes/) {
1064: $startminipage = '\begin{minipage}{\textwidth}';
1065: }
1066: my $id = $Apache::inputtags::part;
1067: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1068: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1069: my @packages = split /,/,$packages;
1070: my $allow_print_points = 0;
1071: foreach my $partial_key (@packages) {
1072: if ($partial_key=~m/^part_0$/) {
1073: $allow_print_points=1;
1074: }
1075: }
1076: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1077: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1078: if (lc($env{'course.'.$env{'request.course.id'}.
1079: '.disableexampointprint'}) eq 'yes') {
1080: $allow_print_points=0;
1081: }
1082: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1083: 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 1084: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1085: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1086:
1087: # Figure out what the due date is and if we need to print
1088: # it in the problem header. We have been logging the
1089: # last due date written to file.
1090:
1091: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1092: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1093: my $duedate_text = &mt('Due date: [_1]'
1094: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1095: my $temp_file;
1096: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1097:
1098: # Figure out what the last printed due date is or set it
1099: # to the epoch if no duedates have been printed.
1100:
1101: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1102: if (-e $filename) {
1103: $temp_file = Apache::File->new($filename);
1104: my @due_file = <$temp_file>;
1105: $due_file_content = $due_file[$#due_file];
1106: chomp $due_file_content;
1107: }
1108:
1109: # We display the due date iff it is not the same as the last
1110: # duedate in problem header ($due_file_content), and
1111: # none of our parts displayed a duedate.
1112: #
1113: my $parts_with_displayduedate;
1114: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1115: $parts_with_displayduedate =
1116: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1117: } else {
1118: $parts_with_displayduedate = 0;
1119: }
1120: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1121: $temp_file = Apache::File->new('>'.$filename);
1122: print $temp_file "$duetime\n";
1123: if (not $env{'request.symb'} =~ m/\.page_/) {
1124: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1125: $frontmatter .= $begin_doc.
1.448 bisitz 1126: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1127: } else {
1128: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1129: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1130: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1131: }
1.319 foxr 1132: }
1133: } else {
1.448 bisitz 1134: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1135: }
1136: } else {
1137: if (not $env{'request.symb'} =~ m/\.page_/) {
1138: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1139: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1140: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1141: }
1.319 foxr 1142: } else {
1.381 albertel 1143: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1144: }
1145: }
1146: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1147: }
1148:
1.159 albertel 1149: my $status=$Apache::inputtags::status['-1'];
1150: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1151: $target eq 'tex') {
1.249 albertel 1152: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1153: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1154: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1155: &Apache::inputtags::grade;
1.324 albertel 1156: } elsif ($status eq 'NEEDS_CHECKIN') {
1157: # no need to grade, and don't want to hide data
1.249 albertel 1158: } else {
1159: # move any submission data to .hidden
1160: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1161: }
1.159 albertel 1162: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1163: $Apache::inputtags::part eq '0' &&
1.252 albertel 1164: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1165: # if part is zero, no <part>s existed, so we need show the current
1166: # grading status
1167: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1168: $result.= $gradestatus;
1169: }
1170: if (
1.284 albertel 1171: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1172: ($target eq 'answer') || ($target eq 'tex')
1173: ) {
1.227 albertel 1174: if ($target ne 'tex' &&
1.284 albertel 1175: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1176: $result.="</form>";
1.348 albertel 1177: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1178: }
1179: if ($target eq 'web') {
1.346 albertel 1180: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1181: } elsif ($target eq 'tex') {
1.178 sakharuk 1182: my $endminipage = '';
1.284 albertel 1183: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1184: $endminipage = '\end{minipage}';
1185: }
1.284 albertel 1186: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1187: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1188: } else {
1.262 sakharuk 1189: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1190: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1191: $result .= $endminipage.'\end{document} ';
1192: } else {
1.382 albertel 1193: $result .= $endminipage;
1.262 sakharuk 1194: }
1.159 albertel 1195: }
1196: }
1197: }
1198: if ($target eq 'grade') {
1199: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1200: &finalize_storage();
1201: }
1.284 albertel 1202: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1203: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1204: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1205: # normally we get it from above, but in CSTR
1.172 albertel 1206: # we always show answer mode too.
1.159 albertel 1207: }
1208: } elsif ($target eq 'meta') {
1209: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1210: @Apache::inputtags::response=();
1.159 albertel 1211: $result=&Apache::response::mandatory_part_meta;
1212: }
1.215 albertel 1213: $result.=&Apache::response::meta_part_order();
1.258 albertel 1214: $result.=&Apache::response::meta_response_order();
1.159 albertel 1215: } elsif ($target eq 'edit') {
1216: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1217: $result .= &problem_edit_footer();
1.320 albertel 1218: } elsif ($target eq 'modified') {
1219: $result .= $token->[2];
1.159 albertel 1220: }
1.155 albertel 1221:
1.284 albertel 1222: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1223: &Apache::inputtags::check_for_duplicate_ids();
1224: }
1.204 albertel 1225:
1226: &reset_problem_globals('problem');
1.159 albertel 1227:
1228: return $result;
1.48 albertel 1229: }
1230:
1.108 albertel 1231:
1.48 albertel 1232: sub start_library {
1.159 albertel 1233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1234: my ($result,$form_tag_start);
1.371 albertel 1235: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1236: &init_problem_globals('library');
1237: $Apache::lonhomework::type='problem';
1238: }
1.159 albertel 1239: if ($target eq 'edit') {
1.343 albertel 1240: ($result,$form_tag_start)=
1241: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1242: 'Edit');
1243: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1244: my $temp=&Apache::edit::insertlist($target,$token);
1245: $result.=$temp;
1246: } elsif ($target eq 'modified') {
1247: $result=$token->[4];
1.340 albertel 1248: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1249: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1250: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1251: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1252: ($result,$form_tag_start)=
1253: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1254: $name);
1.159 albertel 1255: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1256: $result.=" \n $form_tag_start".
1.159 albertel 1257: '<input type="hidden" name="submitted" value="yes" />';
1258: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1259: if ($Apache::lonhomework::type eq 'practice') {
1260: $result.= '<input type="submit" name="resetdata" '.
1261: 'value="'.&mt('New Problem Variation').'" />'.
1262: &practice_problem_header().'<hr />';
1263: }
1.159 albertel 1264: }
1265: return $result;
1.48 albertel 1266: }
1267:
1268: sub end_library {
1.159 albertel 1269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1270: my $result='';
1271: if ($target eq 'edit') {
1272: $result=&problem_edit_footer();
1.371 albertel 1273: } elsif ($target eq 'web'
1274: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1275: && $env{'request.state'} eq "construct") {
1.349 albertel 1276: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1277: }
1.371 albertel 1278: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1279: &reset_problem_globals('library');
1280: }
1.159 albertel 1281: return $result;
1.197 www 1282: }
1283:
1284: sub start_definetag {
1.326 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1286:
1287: my $result;
1288:
1289: my $name = $token->[2]->{'name'};
1.326 albertel 1290: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1291: if ($target eq 'web') {
1292: if ($name=~/^\//) {
1293: $result=
1294: '<br /><table class="LC_sty_end"><tr><th>'.
1295: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1296: } else {
1297: $result=
1298: '<br /><table class="LC_sty_begin"><tr><th>'.
1299: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1300: }
1301: $skip = &HTML::Entities::encode($skip, '<>&"');
1302: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1303: }
1304: return $result;
1305: }
1306:
1307: sub end_definetag {
1308: return '';
1.1 albertel 1309: }
1310:
1311: sub start_block {
1.201 albertel 1312: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1313:
1314: my $result;
1.1 albertel 1315:
1.339 albertel 1316: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1317: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1318: my $code = $token->[2]->{'condition'};
1.385 albertel 1319: if (defined($code) && $code ne '') {
1.137 albertel 1320: if (!$Apache::lonxml::default_homework_loaded) {
1321: &Apache::lonxml::default_homework_load($safeeval);
1322: }
1.131 albertel 1323: $result = &Apache::run::run($code,$safeeval);
1324: &Apache::lonxml::debug("block :$code: returned :$result:");
1325: } else {
1326: $result='1';
1327: }
1328: if ( ! $result ) {
1.201 albertel 1329: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1330: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1331: }
1332: $result='';
1333: } elsif ($target eq 'edit') {
1334: $result .=&Apache::edit::tag_start($target,$token);
1335: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1336: $token,40);
1337: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1338: } elsif ($target eq 'modified') {
1339: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1340: $safeeval,'condition');
1341: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1342: }
1.131 albertel 1343: return $result;
1.1 albertel 1344: }
1345:
1346: sub end_block {
1.167 www 1347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1348: my $result;
1349: if ($target eq "edit") {
1350: $result.= &Apache::edit::tag_end($target,$token,'');
1351: }
1352: return $result;
1353: }
1354:
1355: sub start_languageblock {
1.201 albertel 1356: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1357:
1358: my $result;
1359:
1.339 albertel 1360: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1361: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1362: my $include = $token->[2]->{'include'};
1363: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1364: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1365: # This should not even happen, since we should at least have the server language
1.398 www 1366: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1367: # Now loop over all languages in order of preference
1368: foreach my $preferred_language (@preferred_languages) {
1.394 www 1369: # If the languageblock has no arguments, show the contents
1.399 www 1370: $result=1;
1371: my $found=0;
1.394 www 1372: # Do we have an include argument?
1.398 www 1373: if ($include) {
1.394 www 1374: # If include is specified, by default, don't render the block
1.399 www 1375: $result=0;
1.398 www 1376: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1377: # ... but if my preferred language is included, render it
1.398 www 1378: if ($included_language eq $preferred_language) {
1.399 www 1379: $result=1;
1380: $found=1;
1.398 www 1381: }
1382: }
1383: }
1.394 www 1384: # Do we have an exclude argument?
1.398 www 1385: if ($exclude) {
1.399 www 1386: $result=1;
1.398 www 1387: foreach my $excluded_language (split(/\,/,$exclude)) {
1388: if ($excluded_language eq $preferred_language) {
1.399 www 1389: $result=0;
1390: $found=1;
1.398 www 1391: }
1392: }
1393: }
1.399 www 1394: if ($found) { last; }
1.398 www 1395: }
1.201 albertel 1396: if ( ! $result ) {
1397: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1398: $style);
1399: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1400: }
1401: $result='';
1.167 www 1402: } elsif ($target eq 'edit') {
1403: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1404: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1405: $token,40);
1.211 albertel 1406: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1407: $token,40);
1408: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1409: } elsif ($target eq 'modified') {
1410: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1411: $safeeval,'include',
1412: 'exclude');
1.167 www 1413: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1414: }
1415: return $result;
1416: }
1417:
1418: sub end_languageblock {
1.170 www 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1420: my $result;
1.201 albertel 1421: if ($target eq "edit") {
1.170 www 1422: $result.= &Apache::edit::tag_end($target,$token,'');
1423: }
1424: return $result;
1425: }
1426:
1.397 albertel 1427: {
1428: my %available_texts;
1429: sub start_translated {
1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1431: &Apache::lonxml::register('Apache::structuretags',('lang'));
1432: undef(%available_texts);
1433: }
1434:
1435: sub end_translated {
1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1437: my $result;
1438: #show the translation on viewable targets
1439: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1440: # or non-viewable targets, if it's embedded in something that
1441: # wants the output
1442: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1443: && &Apache::lonxml::in_redirection() ) ) {
1444: my @possibilities = keys(%available_texts);
1445: my $which =
1446: &Apache::loncommon::languages(\@possibilities) || 'default';
1447: $result = $available_texts{$which};
1448: }
1449: undef(%available_texts);
1450: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1451: return $result;
1452: }
1453:
1454:
1455: sub start_lang {
1456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1457: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1458: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1459: &Apache::lonxml::startredirection();
1460: }
1461: return '';
1462: }
1463:
1464: sub end_lang {
1465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1466: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1467: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1468: my $result = &Apache::lonxml::endredirection();
1469: my $which = &Apache::lonxml::get_param('which',$parstack,
1470: $safeeval);
1.431 raeburn 1471: if ($which=~/\w/) {
1472: $available_texts{$which} = $result;
1473: }
1474: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1475: $safeeval);
1476: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1477: if ($language=~/\w/) {
1478: $available_texts{$language} = $result;
1479: }
1.427 bisitz 1480: }
1481:
1.397 albertel 1482: }
1483: return '';
1484: }
1485: }
1486:
1.170 www 1487: sub start_instructorcomment {
1.201 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1489:
1490: my $result;
1491:
1.339 albertel 1492: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1493: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1494: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1495: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1496: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1497: $parser,$style);
1.170 www 1498: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1499: }
1500: $result='';
1501: } elsif ($target eq 'edit') {
1502: $result .=&Apache::edit::tag_start($target,$token);
1503: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1504: }
1505: return $result;
1506: }
1507:
1508: sub end_instructorcomment {
1.159 albertel 1509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1510: my $result;
1511: if ($target eq "edit") {
1512: $result.= &Apache::edit::tag_end($target,$token,'');
1513: }
1514: return $result;
1.4 tsai 1515: }
1516:
1517: sub start_while {
1.326 albertel 1518: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1519:
1.160 albertel 1520: my $result;
1.339 albertel 1521: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1522: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1523: my $code = $token->[2]->{'condition'};
1.4 tsai 1524:
1.160 albertel 1525: push( @Apache::structuretags::whileconds, $code);
1526: if (!$Apache::lonxml::default_homework_loaded) {
1527: &Apache::lonxml::default_homework_load($safeeval);
1528: }
1529: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1530: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1531: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1532: push( @Apache::structuretags::whileline, $token->[5]);
1533: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1534: if ( $result ) {
1535: &Apache::lonxml::newparser($parser,\$bodytext);
1536: }
1537: } elsif ($target eq 'edit') {
1538: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1539: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1540: $token,40);
1541: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1542: } elsif ($target eq 'modified') {
1543: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1544: $safeeval,'condition');
1545: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1546: }
1.160 albertel 1547: return $result;
1.4 tsai 1548: }
1549:
1550: sub end_while {
1.159 albertel 1551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1552: my $result;
1553:
1.339 albertel 1554: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1555: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1556: my $code = pop(@Apache::structuretags::whileconds);
1557: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1558: my $line = pop(@Apache::structuretags::whileline);
1559: my $return = &Apache::run::run($code,$safeeval);
1560: my $starttime=time;
1561: my $error=0;
1562: while ($return) {
1563: if (time-$starttime >
1564: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1565: $return = 0; $error=1; next;
1.161 albertel 1566: }
1567: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1568: if ($target eq 'grade' || $target eq 'answer' ||
1569: $target eq 'analyze') {
1570: # grade/answer/analyze should produce no output but if we
1571: # are redirecting, the redirecter should know what to do
1572: # with the output
1573: if (!$Apache::lonxml::redirection) { undef($result); }
1574: }
1.161 albertel 1575: $return = &Apache::run::run($code,$safeeval);
1576: }
1577: if ($error) {
1.430 bisitz 1578: &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 1579: }
1580: } elsif ($target eq "edit") {
1581: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1582: }
1.160 albertel 1583: return $result;
1.1 albertel 1584: }
1.6 tsai 1585:
1.160 albertel 1586: # <randomlist show="1">
1.6 tsai 1587: # <tag1>..</tag1>
1588: # <tag2>..</tag2>
1589: # <tag3>..</tag3>
1.160 albertel 1590: # ...
1.6 tsai 1591: # </randomlist>
1592: sub start_randomlist {
1.326 albertel 1593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1594: my $result;
1.339 albertel 1595: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1596: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1597: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1598: my $b_parser= HTML::LCParser->new(\$body);
1599: $b_parser->xml_mode(1);
1600: $b_parser->marked_sections(1);
1.159 albertel 1601: my $b_tok;
1602: my @randomlist;
1603: my $list_item;
1604: while($b_tok = $b_parser->get_token() ) {
1605: if($b_tok->[0] eq 'S') { # start tag
1606: # get content of the tag until matching end tag
1607: # get all text upto the matching tag
1608: # and push the content into @randomlist
1609: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1610: $b_parser);
1611: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1612: push(@randomlist,$list_item);
1613: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1614: # $list_item</b>";
1615: }
1616: if($b_tok->[0] eq 'T') { # text
1617: # what to do with text in between tags?
1618: # print "<b>TEXT $b_tok->[1]</b><br />";
1619: }
1620: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1621: # print "<b>END-TAG $b_tok->[1]</b><br />";
1622: # }
1623: }
1.303 albertel 1624: if (@randomlist) {
1625: my @idx_arr = (0 .. $#randomlist);
1626: &Apache::structuretags::shuffle(\@idx_arr);
1627: my $bodytext = '';
1628: my $show=$#randomlist;
1629: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1630: $showarg--;
1631: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1632: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1633: my @currlist;
1634: my $part = $Apache::inputtags::part;
1635: if ($part ne '') {
1636: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1637: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1638: if (!(grep(/^\Q$part\E$/,@currlist))) {
1639: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1640: }
1641: } else {
1642: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1643: }
1644: }
1645: }
1.303 albertel 1646: for(0 .. $show) {
1647: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1648: }
1649: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1650: }
1651: } elsif ($target eq 'edit' ) {
1652: $result .=&Apache::edit::tag_start($target,$token);
1653: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1654: $token,5);
1655: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1656: } elsif ($target eq 'modified' ) {
1657: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1658: $safeeval,'show');
1659: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1660: }
1661: return $result;
1.7 tsai 1662: }
1663:
1664: sub shuffle {
1665: my $a=shift;
1666: my $i;
1.303 albertel 1667: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1668: &Apache::response::pushrandomnumber();
1.159 albertel 1669: for($i=@$a;--$i;) {
1670: my $j=int(&Math::Random::random_uniform() * ($i+1));
1671: next if $i == $j;
1672: @$a[$i,$j] = @$a[$j,$i];
1673: }
1.251 albertel 1674: &Apache::response::poprandomnumber();
1.7 tsai 1675: }
1.6 tsai 1676: }
1677:
1678: sub end_randomlist {
1.159 albertel 1679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1680: my $result;
1681: if ($target eq 'edit' ) {
1682: $result=&Apache::edit::tag_end($target,$token,
1683: 'End Randomly Parsed Block');
1684: }
1685: return $result;
1.6 tsai 1686: }
1687:
1.283 albertel 1688: sub ordered_show_check {
1689: my $last_part=$Apache::inputtags::partlist[-2];
1690: my $in_order=
1691: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1692: my $in_order_show=1;
1693: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1694: $in_order_show=&Apache::response::check_status($last_part);
1695: }
1696: return $in_order_show;
1697: }
1698:
1.11 albertel 1699: sub start_part {
1.326 albertel 1700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1701: if (!$Apache::lonxml::metamode) {
1702: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1703: # duedates.
1704: }
1.159 albertel 1705: my $result='';
1.386 albertel 1706: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1707: $Apache::inputtags::part=$id;
1.177 albertel 1708: push(@Apache::inputtags::partlist,$id);
1709: @Apache::inputtags::response=();
1.159 albertel 1710: @Apache::inputtags::previous=();
1711: @Apache::inputtags::previous_version=();
1.405 albertel 1712: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1713: &Apache::response::reset_params();
1714:
1.159 albertel 1715: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1716: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1717: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1718: my $in_order_show=&ordered_show_check();
1.214 albertel 1719: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1720: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1721: &Apache::run::run($expression,$safeeval);
1.159 albertel 1722:
1723: if ($target eq 'meta') {
1.224 www 1724: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1725: return &Apache::response::mandatory_part_meta.
1726: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1727: } elsif ($target eq 'web' || $target eq 'grade' ||
1728: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1729: if ($hidden || !$in_order_show) {
1.326 albertel 1730: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1731: } else {
1732: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1733: push (@Apache::inputtags::status,$status);
1734: my $expression='$external::datestatus="'.$status.'";';
1735: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1736: &Apache::run::run($expression,$safeeval);
1.284 albertel 1737: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1738: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1739: }
1.216 albertel 1740: if (( $status eq 'CLOSED' ) ||
1741: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1742: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1743: ( $status eq 'BANNED') ||
1744: ( $status eq 'UNAVAILABLE') ||
1745: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1746: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1747: $style);
1.159 albertel 1748: if ( $target eq "web" ) {
1.211 albertel 1749: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1750: } elsif ( $target eq 'tex' ) {
1.284 albertel 1751: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1752: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1753: } else {
1.211 albertel 1754: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1755: }
1.159 albertel 1756: }
1757: } else {
1758: if ($target eq 'tex') {
1.284 albertel 1759: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1760: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1761: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1762: } else {
1763: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1764: }
1.195 sakharuk 1765: }
1.159 albertel 1766: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1767: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1768: my @allkeys = split /,/,$allkeys;
1769: my $allow_print_points = 0;
1770: foreach my $partial_key (@allkeys) {
1.230 albertel 1771: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1772: if ($1 ne '0') {$allow_print_points=1;}
1773: }
1774: }
1.275 albertel 1775: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1776: if (defined($maxtries) && $maxtries < 0) {
1777: $allow_print_points=0;
1778: }
1.302 albertel 1779: if (lc($env{'course.'.$env{'request.course.id'}.
1780: '.disableexampointprint'}) eq 'yes') {
1781: $allow_print_points=0;
1782: }
1.463 foxr 1783: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1784: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1785:
1786: }
1.233 www 1787: } elsif ($target eq 'web') {
1.356 www 1788: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1789: }
1790: }
1791: }
1792: } elsif ($target eq 'edit') {
1793: $result.=&Apache::edit::tag_start($target,$token);
1794: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1795: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1796: ' '.
1797: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1798: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1799: } elsif ($target eq 'modified') {
1800: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1801: $safeeval,'id','display');
1.159 albertel 1802: if ($constructtag) {
1.225 albertel 1803: #limiting ids to only letters numbers, and space
1.224 www 1804: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1805: $result = &Apache::edit::rebuild_tag($token);
1806: }
1807: }
1808: return $result;
1.11 albertel 1809: }
1810:
1811: sub end_part {
1.159 albertel 1812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1813: &Apache::lonxml::debug("in end_part $target ");
1814: my $status=$Apache::inputtags::status['-1'];
1815: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1816: my $in_order_show=&ordered_show_check();
1.321 albertel 1817: my $result;
1818: if (!$Apache::lonxml::metamode) {
1819: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1820: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1821: }
1.312 albertel 1822: if ($target eq 'grade') {
1.249 albertel 1823: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1824: !$hidden && $in_order_show) {
1.311 foxr 1825: $result.=&Apache::inputtags::grade;
1.249 albertel 1826: } else {
1827: # move any submission data to .hidden
1828: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1829: }
1.283 albertel 1830: } elsif (($target eq 'web' || $target eq 'tex') &&
1831: !$hidden && $in_order_show) {
1.159 albertel 1832: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1833: $target);
1.212 albertel 1834: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1835: $gradestatus='';
1836: }
1.311 foxr 1837: $result.=$gradestatus;
1.265 sakharuk 1838: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1839: } elsif ($target eq 'edit') {
1.311 foxr 1840: $result.=&Apache::edit::end_table();
1.322 albertel 1841: } elsif ($target eq 'modified') {
1842: $result .= $token->[2];
1.159 albertel 1843: }
1844: pop @Apache::inputtags::status;
1845: $Apache::inputtags::part='';
1.295 albertel 1846: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1847: return $result;
1.11 albertel 1848: }
1.1 albertel 1849:
1.25 albertel 1850: sub start_preduedate {
1.326 albertel 1851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1852: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1853: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1854: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1855: if (!$Apache::lonhomework::scantronmode &&
1856: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1857: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1858: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1859: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1860: }
1.24 albertel 1861: }
1.159 albertel 1862: return '';
1.24 albertel 1863: }
1864:
1.25 albertel 1865: sub end_preduedate {
1.159 albertel 1866: return '';
1.24 albertel 1867: }
1868:
1.369 foxr 1869: # In all the modes where <postanswerdate> text is
1870: # displayable, all we do is eat up the text between the start/stop
1871: # tags if the conditions are not right to display it.
1.25 albertel 1872: sub start_postanswerdate {
1.326 albertel 1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1874: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1875: &Apache::lonnet::allowed('pav',
1876: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1877: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1878: $target eq 'tex' ) {
1.300 albertel 1879: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1880: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1881: (($target eq 'tex') && !$pav)) {
1.326 albertel 1882: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1883: }
1884: }
1885: return '';
1.24 albertel 1886: }
1887:
1.25 albertel 1888: sub end_postanswerdate {
1.159 albertel 1889: return '';
1.24 albertel 1890: }
1891:
1.25 albertel 1892: sub start_notsolved {
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' ||
1.339 albertel 1895: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1896: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1897: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1898: if ($gradestatus =~ /^correct/ &&
1899: &Apache::response::show_answer()) {
1.159 albertel 1900: &Apache::lonxml::debug("skipping");
1.326 albertel 1901: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1902: }
1.24 albertel 1903: }
1.159 albertel 1904: return '';
1.24 albertel 1905: }
1906:
1.25 albertel 1907: sub end_notsolved {
1.159 albertel 1908: return '';
1.24 albertel 1909: }
1910:
1911: sub start_solved {
1.326 albertel 1912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1913: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1914: $target eq 'tex') {
1915: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1916: if ($gradestatus !~ /^correct/ ||
1917: !&Apache::response::show_answer()) {
1.326 albertel 1918: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1919: }
1.24 albertel 1920: }
1.159 albertel 1921: return '';
1.24 albertel 1922: }
1923:
1924: sub end_solved {
1.248 albertel 1925: return '';
1926: }
1927:
1928: sub start_problemtype {
1.326 albertel 1929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1930: my $result;
1.339 albertel 1931: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1932: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1933: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1934: if (!defined($mode)) { $mode='show'; }
1935: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1936: my $found=0;
1937: foreach my $type (split(',',$for)) {
1938: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1939: }
1940: if ($mode eq 'show' && !$found) {
1.326 albertel 1941: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1942: }
1943: if ($mode eq 'hide' && $found) {
1.326 albertel 1944: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1945: }
1946: } elsif ($target eq 'edit') {
1947: $result .=&Apache::edit::tag_start($target,$token);
1948: $result.=&Apache::edit::select_arg('Mode:','mode',
1949: [['show','Show'],
1950: ['hide','Hide']]
1951: ,$token);
1952: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1953: [ ['exam','Exam/Quiz Problem'],
1954: ['survey','Survey'],
1.428 raeburn 1955: ['problem','Homework Problem'],
1956: ['practice','Practice Problem'] ]
1.248 albertel 1957: ,$token);
1958: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1959: } elsif ($target eq 'modified') {
1960: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1961: $safeeval,'mode','for');
1962: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1963: }
1964: return $result;
1965: }
1966:
1967: sub end_problemtype {
1.159 albertel 1968: return '';
1.24 albertel 1969: }
1.34 albertel 1970:
1971: sub start_startouttext {
1.159 albertel 1972: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1973: my @result=(''.'');
1974: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1975:
1976: my $nesting =
1977: &Apache::lonxml::set_state('outtext',
1978: &Apache::lonxml::get_state('outtext')+1);
1979: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1980: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1981: }
1.159 albertel 1982: return (@result);
1.34 albertel 1983: }
1.159 albertel 1984:
1.34 albertel 1985: sub end_startouttext {
1.326 albertel 1986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1987: my $result='';
1988: my $text='';
1989: if ($target eq 'edit') {
1.424 foxr 1990: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1991: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1992: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1993: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1994: .&Apache::edit::deletelist($target,$token)
1995: .'</span></td>';
1.425 raeburn 1996: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1997: $result .= '<td align="left">'
1998: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1999: .'</td>'
2000: .'<td>'
2001: .&Apache::edit::insertlist($target,$token)
2002: .'</td>';
2003: }
1.425 raeburn 2004: $result.='<td align="right" valign="top">' .
1.434 foxr 2005: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2006: &Apache::edit::end_row().
1.362 albertel 2007: &Apache::edit::start_spanning_row()."\n".
1.255 www 2008: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2009: }
2010: if ($target eq 'modified') {
1.219 albertel 2011: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2012: }
2013: if ($target eq 'tex') {
2014: $result .= '\noindent ';
2015: }
2016: return $result;
1.34 albertel 2017: }
1.159 albertel 2018:
1.34 albertel 2019: sub start_endouttext {
1.159 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2021: my $result='';
2022: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2023: if ($target eq "modified") {
2024: $result='<endouttext />'.
1.377 albertel 2025: &Apache::edit::handle_insertafter('startouttext');
2026: }
1.404 albertel 2027:
2028: my $nesting =
2029: &Apache::lonxml::set_state('outtext',
2030: &Apache::lonxml::get_state('outtext')-1);
2031: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2032: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2033: &Apache::lonxml::set_state('outtext', 0);
2034: }
1.159 albertel 2035: return $result;
1.34 albertel 2036: }
1.159 albertel 2037:
1.34 albertel 2038: sub end_endouttext {
1.159 albertel 2039: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2040: my @result=('','');
2041: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2042: return (@result);
1.34 albertel 2043: }
1.159 albertel 2044:
1.45 albertel 2045: sub delete_startouttext {
1.326 albertel 2046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2047: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2048: my $text=$$parser['-1']->get_text("/endouttext");
2049: my $ntoken=$$parser['-1']->get_token();
2050: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2051: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2052: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2053: # they did the last time round
2054: &Apache::lonxml::increasedepth($ntoken);
2055: &Apache::lonxml::decreasedepth($ntoken);
2056: return 1;
1.193 www 2057: }
2058:
2059: sub start_simpleeditbutton {
2060: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2061: my $result='';
1.284 albertel 2062: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2063: ($target eq 'web') &&
1.330 albertel 2064: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2065: my $url=$env{'request.noversionuri'};
1.193 www 2066: $url=~s/\?.*$//;
1.367 albertel 2067: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2068: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2069: # $result='<p class="LC_warning">'
2070: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2071: # .&Apache::loncommon::help_open_topic('Caching')
2072: # .'</p>';
1.451 bisitz 2073: $result.=&Apache::lonhtmlcommon::start_funclist()
2074: .&Apache::lonhtmlcommon::add_item_funclist(
2075: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2076: .&mt('Edit').'</a>')
2077: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2078:
1.193 www 2079: }
2080: return $result;
2081: }
2082:
2083: sub end_simpleeditbutton {
2084: return '';
1.45 albertel 2085: }
1.34 albertel 2086:
1.428 raeburn 2087: sub practice_problem_header {
2088: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2089: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2090: '</span>';
2091: }
2092:
1.1 albertel 2093: 1;
2094: __END__
1.435 jms 2095:
2096: =pod
2097:
2098: =back
2099:
2100: =cut
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