Annotation of loncom/homework/structuretags.pm, revision 1.454
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.454 ! droeschl 4: # $Id: structuretags.pm,v 1.453 2009/06/30 10:18:47 bisitz Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.446 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: });
221: # FIXME Where are we?
222: # &Apache::lonhtmlcommon::add_breadcrumb({
223: # 'text' => 'Problem Editing', # 'Problem Testing'
224: # 'href' => '',
225: # });
226: $pageheader = &Apache::lonhtmlcommon::breadcrumbs()
1.446 bisitz 227: .&Apache::loncommon::head_subbox(
228: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 229: }
1.272 albertel 230: } elsif (!defined($found{'body'})) {
1.343 albertel 231: my %add_entries;
1.159 albertel 232: my $background=&Apache::lonxml::get_param('background',$parstack,
233: $safeeval);
1.343 albertel 234: if ($background ne '' ) {
235: $add_entries{'background'} = $background;
236: }
1.344 albertel 237:
1.290 albertel 238: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
239: $safeeval);
1.446 bisitz 240: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 241:
1.446 bisitz 242: $body_args{'bgcolor'} = $bgcolor;
243: # $body_args{'no_title'} = 1;
244: $body_args{'force_register'} = 1;
245: $body_args{'add_entries'} = \%add_entries;
246: if ($env{'environment.remote'} eq 'off'
247: && $env{'request.state'} eq 'construct') {
248: $body_args{'only_body'} = 1;
249: }
1.344 albertel 250: }
1.365 albertel 251: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 252: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
253: \%body_args);
1.446 bisitz 254: $page_start .= $pageheader;
1.344 albertel 255: if (!defined($found{'body'})
256: && $env{'request.state'} ne 'construct'
257: && ($target eq 'web' || $target eq 'webgrade')) {
258:
1.367 albertel 259: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 260: if ($symb eq '' && !$publicuser) {
261: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
262: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
263: $page_start .= $help;
1.159 albertel 264: }
1.344 albertel 265: }
266:
1.409 albertel 267: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 268: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 269: }
1.344 albertel 270:
1.159 albertel 271: my $form_tag_start;
272: if (!defined($found{'form'})) {
1.337 albertel 273: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 274: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.454 ! droeschl 275: $uri .= '?inhibitmenu=yes' if $env{'form.inhibitmenu'};
1.327 albertel 276: $form_tag_start.=$uri.'" ';
277: if ($target eq 'edit') {
278: $form_tag_start.=&Apache::edit::form_change_detection();
279: }
1.368 albertel 280: $form_tag_start.='>'."\n";
1.355 albertel 281:
282: my $symb=&Apache::lonnet::symbread();
283: if ($symb =~ /\S/) {
284: $symb=
285: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
286: $form_tag_start.=
1.368 albertel 287: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 288: }
1.159 albertel 289: }
1.343 albertel 290: return ($page_start,$form_tag_start);
1.105 albertel 291: }
292:
1.141 matthew 293: #use Time::HiRes();
1.105 albertel 294: sub get_resource_name {
1.159 albertel 295: my ($parstack,$safeeval)=@_;
1.388 foxr 296: my $name;
1.204 albertel 297: if (defined($Apache::lonhomework::name)) {
1.388 foxr 298: $name = $Apache::lonhomework::name;
299: } else {
300: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 301: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 302: if ($name eq '') {
303: $name=&Apache::lonnet::EXT('resource.title');
304: if ($name eq 'con_lost') { $name = ''; }
305: }
306: if ($name!~/\S+/) {
307: $name=$env{'request.uri'};
308: $name=~s-.*/([^/]+)$-$1-;
309: }
310: # The name has had html tags escaped:
311:
312: $name=~s/</</gs;
313: $name=~s/>/>/gs;
314:
315: $Apache::lonhomework::name=$name;
1.204 albertel 316: }
1.159 albertel 317: return $name;
1.105 albertel 318: }
319:
320: sub setup_rndseed {
1.159 albertel 321: my ($safeeval)=@_;
322: my $rndseed;
1.367 albertel 323: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 324: if ($env{'request.state'} eq "construct"
325: || $symb eq ''
326: || $Apache::lonhomework::type eq 'practice'
327: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 328: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 329: ['rndseed']);
1.284 albertel 330: $rndseed=$env{'form.rndseed'};
1.159 albertel 331: if (!$rndseed) {
1.162 albertel 332: $rndseed=$Apache::lonhomework::history{'rndseed'};
333: if (!$rndseed) {
334: $rndseed=time;
335: }
1.284 albertel 336: $env{'form.rndseed'}=$rndseed;
1.162 albertel 337: }
1.374 albertel 338: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
339: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 340: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 341: srand(time);
342: $rndseed=int(rand(2100000000));
1.284 albertel 343: $env{'form.rndseed'}=$rndseed;
344: delete($env{'form.resetdata'});
345: delete($env{'form.newrandomization'});
1.159 albertel 346: }
1.187 albertel 347: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 348: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 349: }
1.247 albertel 350: if ($Apache::lonhomework::history{'resource.CODE'}) {
351: $rndseed=&Apache::lonnet::rndseed();
352: }
1.221 albertel 353: if ($safeeval) {
354: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 355: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 356: }
1.159 albertel 357: }
358: return $rndseed;
1.105 albertel 359: }
360:
1.268 albertel 361: sub remember_problem_state {
362: return '
1.284 albertel 363: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
364: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
365: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 366: }
367:
1.423 www 368: sub problem_edit_buttons {
369: return '
1.408 albertel 370: <div class="LC_edit_problem_discards">
1.416 raeburn 371: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 372: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 373: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 374: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 375: </div>
376: <div class="LC_edit_problem_saves">
1.416 raeburn 377: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
378: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 379: </div>';
380: }
381:
382: sub problem_edit_header {
383: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
384: &Apache::structuretags::remember_problem_state().'
385: <div class="LC_edit_problem_header">
386: <div class="LC_edit_problem_header_title">
387: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
388: </div>'.
389: &problem_edit_buttons().'
1.453 bisitz 390: <hr />
1.409 albertel 391: '.&Apache::lonxml::message_location().'
1.408 albertel 392: </div>
393: '.
1.282 albertel 394: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 395: }
396:
397: sub problem_edit_footer {
1.412 albertel 398: return '</td></tr></table><br />
399: <div class="LC_edit_problem_footer">
1.453 bisitz 400: <hr />'.
1.423 www 401: &problem_edit_buttons().'
1.453 bisitz 402: <hr />
1.412 albertel 403: </div>
404: '.
405:
1.348 albertel 406: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 407: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 408: }
409:
1.235 albertel 410: sub option {
411: my ($value,$name) = @_;
412: my $result ="<option value='".$value."' ";
1.284 albertel 413: if ($env{'form.'.$name} eq $value) {
1.235 albertel 414: $result.=" selected='on' ";
415: }
416: $result.='>';
417: return $result;
418: }
419:
1.105 albertel 420: sub problem_web_to_edit_header {
1.159 albertel 421: my ($rndseed)=@_;
1.406 albertel 422: my $result .= '<div class="LC_edit_problem_header">';
423:
424: if (!$Apache::lonhomework::parsing_a_task) {
425: $result .=
426: '<div class="LC_edit_problem_header_title">'.
427: &mt('Problem Testing').
428: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
429: '</div>';
430: } else {
431: $result .=
432: '<div class="LC_edit_problem_header_title">'.
433: &mt('Task Testing').
434: '</div>';
435: }
436:
1.315 albertel 437: my $show_all_foils_text =
438: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 439: &mt('Show All Instances')
440: : &mt('Show All Foils');
1.315 albertel 441:
1.452 bisitz 442: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
443: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 444: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 445: $show_all.= ' /> '.$show_all_foils_text
446: .'</label></span>';
1.406 albertel 447:
448:
1.384 albertel 449:
1.406 albertel 450: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 451: if (!$Apache::lonhomework::parsing_a_task) {
452: $result.="
1.406 albertel 453: <div class='LC_edit_problem_header_row1'>
454: <span class=\"LC_nobreak\">
1.405 albertel 455: ".&mt("Problem Status:")."
1.235 albertel 456: <select name='problemstate'>
1.270 albertel 457: <option value=''></option>
1.235 albertel 458: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
459: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
460: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
461: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
462: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
463: </select>
1.406 albertel 464: </span>
465: <span class=\"LC_nobreak\">
1.405 albertel 466: ".&mt("Problem Type:")."
1.235 albertel 467: <select name='problemtype'>
1.270 albertel 468: <option value=''></option>
1.242 albertel 469: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 470: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 471: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 472: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 473: </select>
1.406 albertel 474: </span>
475: $show_all
476: </div>
477: <div class='LC_edit_problem_header_row2'>
478: <span class=\"LC_nobreak\">
1.405 albertel 479: ".&mt("Feedback Mode:")."
1.235 albertel 480: <select name='problemstatus'>
481: <option value=''></option>
1.242 albertel 482: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 483: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
484: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 485: </select>
1.406 albertel 486: </span>
487: ";
488:
1.376 albertel 489: } elsif ($Apache::lonhomework::parsing_a_task) {
490: $result.="
1.406 albertel 491: <div class='LC_edit_problem_header_row1'>
492: <span class=\"LC_nobreak\">
1.405 albertel 493: ".&mt("Problem Status:")."
1.376 albertel 494: <select name='problemstate'>
495: <option value=''></option>
496: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
497: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
498: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
499: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
500: </select>
1.406 albertel 501: </span>
502: $show_all
503: ";
504: }
505: $result.='
506: <span class="LC_nobreak">
507: '.&mt('Apply style file: ').'
508: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
509: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
510: </span>
1.422 www 511: </div>
512: <div class="LC_edit_problem_header_row1">'.
513: &Apache::lonxml::renderingoptions().'
1.406 albertel 514: </div>
515: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
516: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
517: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
518: </div>
1.453 bisitz 519: <hr />
1.406 albertel 520: <div class="LC_edit_problem_header_randomize_row">
521: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
522: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
523: <input type="text" name="rndseed" size="10" value="'.
524: $rndseed.'"
525: onchange="javascript:document.lonhomework.changerandseed.click()" />';
526:
527: if (!$Apache::lonhomework::parsing_a_task) {
528: my $numtoanalyze=$env{'form.numtoanalyze'};
529: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 530: $result .= '<span class="LC_nobreak">'.
531: &mt('[_1] for [_2] versions.',
1.416 raeburn 532: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 533: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
534: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 535: $numtoanalyze.'" size="5" />').
536: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
537: '</span>';
538:
1.313 albertel 539: }
1.406 albertel 540:
541: $result.='
542: </div>
1.453 bisitz 543: <hr />
1.447 bisitz 544: <div>';
1.416 raeburn 545: $result.='<input type="hidden" name="problemmode" value="view" />';
546: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
547: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
548: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
549: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 550: $result.='
551: </div>
1.453 bisitz 552: <hr />
1.409 albertel 553: '.&Apache::lonxml::message_location().'
1.406 albertel 554: </div>';
1.159 albertel 555: return $result;
1.48 albertel 556: }
557:
1.65 albertel 558: sub initialize_storage {
1.357 albertel 559: my ($given_symb) = @_;
1.353 albertel 560: undef(%Apache::lonhomework::results);
561: undef(%Apache::lonhomework::history);
1.357 albertel 562: my ($symb,$courseid,$domain,$name) =
1.367 albertel 563: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 564:
565: # anonymous users (CODEd exams) have no data
566: if ($name eq 'anonymous'
567: && !defined($domain)) {
568: return;
569: }
570:
1.333 albertel 571: if ($env{'request.state'} eq 'construct'
572: || $symb eq ''
573: || $Apache::lonhomework::type eq 'practice') {
574:
575: my $namespace = $symb || $env{'request.uri'};
576: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 577: ($env{'form.resetdata'} eq &mt('New Problem Variation')
578: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 579: $env{'form.newrandomization'} eq &mt('New Randomization')) {
580: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
581: &Apache::lonxml::debug("Attempt reset");
582: }
1.159 albertel 583: %Apache::lonhomework::history=
1.333 albertel 584: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 585: my ($temp)=keys %Apache::lonhomework::history ;
586: &Apache::lonxml::debug("Return message of $temp");
587: } else {
588: %Apache::lonhomework::history=
589: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
590: }
1.353 albertel 591:
1.159 albertel 592: #ignore error conditions
1.67 albertel 593: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 594: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 595: }
596:
1.435 jms 597: =pod
598:
599: =item finalize_storage()
600:
601: Stores away the result has to a student's environment
602: checks form.grade_ for specific values, other wises stores
603: to the running users environment
604: Will increment totals for attempts, students, and corrects
605: if running user has student role.
606:
607: =cut
608:
609:
1.65 albertel 610: sub finalize_storage {
1.357 albertel 611: my ($given_symb) = @_;
1.159 albertel 612: my $result;
1.289 albertel 613: if (%Apache::lonhomework::results) {
1.323 albertel 614: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
615: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 616: my ($symb,$courseid,$domain,$name) =
1.367 albertel 617: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 618: if ($env{'request.state'} eq 'construct'
619: || $symb eq ''
620: || $Apache::lonhomework::type eq 'practice') {
621: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 622: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 623: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 624: $namespace,'',$domain,$name);
1.159 albertel 625: &Apache::lonxml::debug('Construct Store return message:'.$result);
626: } else {
627: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
628: $symb,$courseid,$domain,$name);
629: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 630: if ($env{'request.role'} =~/^st/) {
631: &store_aggregates($symb,$courseid);
632: }
1.159 albertel 633: }
1.323 albertel 634: } else {
635: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 636: }
1.159 albertel 637: return $result;
1.65 albertel 638: }
639:
1.435 jms 640: =pod
641:
642: item store_aggregates()
643:
644: Sends hash of values to be incremented in nohist_resourcetracker.db
645: for the course. Increments total number of attempts, unique students
646: and corrects for each part for an instance of a problem, as appropriate.
647:
648: =cut
649:
1.285 raeburn 650: sub store_aggregates {
651: my ($symb,$courseid) = @_;
1.286 albertel 652: my %aggregate;
653: my @parts;
1.288 albertel 654: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
655: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 656: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 657: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 658: push(@parts, $1);
1.285 raeburn 659: }
660: }
1.286 albertel 661: foreach my $part (@parts) {
662: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
663: eq 'APPROX_ANS' ||
664: $Apache::lonhomework::results{'resource.'.$part.'.award'}
665: eq 'EXACT_ANS') {
1.287 albertel 666: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 667: }
1.286 albertel 668: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 669: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 670: } else {
1.293 albertel 671: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 672: if ($last_reset) {
1.293 albertel 673: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 674: $aggregate{$symb."\0".$part."\0users"} = 1;
675: }
676: }
1.285 raeburn 677: }
1.287 albertel 678: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 679: }
1.292 raeburn 680: if (keys (%aggregate) > 0) {
1.289 albertel 681: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 682: $cdomain,$cname);
683: }
684: }
1.289 albertel 685:
1.65 albertel 686: sub checkout_msg {
1.211 albertel 687: my %lt=&Apache::lonlocal::texthash(
688: 'resource'=>'The resource needs to be checked out',
689: '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.',
690: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
691: 'checkout'=>'Check out Exam for Viewing',
692: 'checkout?'=>'Check out Exam?');
1.352 albertel 693: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 694: return (<<ENDCHECKOUT);
1.211 albertel 695: <h2>$lt{'resource'}</h2>
696: <p>$lt{'id_expln'}</p>
1.449 bisitz 697: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 698: <form name="checkout" method="post" action="$uri">
1.91 albertel 699: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 700: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 701: </form>
702: ENDCHECKOUT
703: }
704:
1.252 albertel 705: sub firstaccess_msg {
1.253 albertel 706: my ($time,$symb)=@_;
1.414 albertel 707: my $result;
708: my @interval=&Apache::lonnet::EXT("resource.0.interval");
709: if ($interval[1] eq 'map') {
710: my ($map)=&Apache::lonnet::decode_symb($symb);
711: my $foldertitle=&Apache::lonnet::gettitle($map);
712:
713: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 714: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
715: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
716: ,$foldertitle,$time)."</h2>";
1.414 albertel 717: } elsif ($interval[1] eq 'course') {
718: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 719: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
720: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
721: ,$course,$time)."</h2>";
1.414 albertel 722: } else {
723: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 724: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
725: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
726: ,$title,$time)."</h2>";
1.414 albertel 727: }
1.352 albertel 728: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 729: my $buttontext = &mt('Show Resource');
730: my $timertext = &mt('Start Timer?');
1.414 albertel 731: $result .= (<<ENDCHECKOUT);
1.444 bisitz 732: <form name="markaccess" method="post" action="$uri">
1.252 albertel 733: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 734: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 735: </form>
736: ENDCHECKOUT
1.414 albertel 737: return $result;
1.252 albertel 738: }
739:
1.204 albertel 740: sub init_problem_globals {
741: my ($type)=@_;
742: #initialize globals
1.308 foxr 743: # For problems, we start out in part 0 (outside a <part> tag).
744: # and part 0 is used to describe the main body of the <problem>
745: #
1.204 albertel 746: if ($type eq 'problem') {
747: $Apache::inputtags::part='0';
748: @Apache::inputtags::partlist=('0');
1.405 albertel 749: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 750: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 751:
1.266 albertel 752: } elsif ($type eq 'library') {
1.204 albertel 753: $Apache::inputtags::part='';
754: @Apache::inputtags::partlist=();
1.405 albertel 755: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 756: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 757:
1.304 albertel 758: } elsif ($type eq 'Task') {
759: $Apache::inputtags::part='0';
760: @Apache::inputtags::partlist=('0');
1.405 albertel 761: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 762: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 763: }
764: @Apache::inputtags::responselist = ();
765: @Apache::inputtags::importlist = ();
766: @Apache::inputtags::previous=();
767: @Apache::inputtags::previous_version=();
768: $Apache::structuretags::printanswer='No';
769: @Apache::structuretags::whileconds=();
770: @Apache::structuretags::whilebody=();
771: @Apache::structuretags::whileline=();
772: $Apache::lonhomework::scantronmode=0;
773: undef($Apache::lonhomework::name);
1.358 albertel 774: undef($Apache::lonhomework::default_type);
775: undef($Apache::lonhomework::type);
1.204 albertel 776: }
777:
778: sub reset_problem_globals {
779: my ($type)=@_;
780: undef(%Apache::lonhomework::history);
781: undef(%Apache::lonhomework::results);
782: undef($Apache::inputtags::part);
1.208 albertel 783: #don't undef this, lonhomework.pm takes care of this, we use this to
784: #detect if we try to do 2 problems in one file
785: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 786: undef($Apache::lonhomework::name);
1.358 albertel 787: undef($Apache::lonhomework::default_type);
788: undef($Apache::lonhomework::type);
789: undef($Apache::lonhomework::scantronmode);
790: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 791: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 792: }
793:
1.241 albertel 794: sub set_problem_state {
1.240 albertel 795: my ($part)=@_;
1.284 albertel 796: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 797: $Apache::lonhomework::history{"resource.$part.solved"}=
798: 'correct_by_student';
799: }
800: }
801:
1.241 albertel 802: sub get_problem_status {
803: my ($part)=@_;
1.267 albertel 804: my $problem_status;
1.284 albertel 805: if ($env{'request.state'} eq 'construct' &&
806: defined($env{'form.problemstatus'})) {
807: $problem_status=$env{'form.problemstatus'};
1.267 albertel 808: } else {
809: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
810: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 811: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 812: }
813: return $problem_status;
814: }
815:
1.9 albertel 816: sub start_problem {
1.326 albertel 817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 818:
1.311 foxr 819: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 820: if (!$Apache::lonxml::metamode) {
821: &Apache::lonxml::startredirection();
822: }
1.311 foxr 823:
1.308 foxr 824: # Problems don't nest and we don't allow more than one <problem> in
825: # a .problem file.
826: #
1.184 albertel 827: if ( $Apache::inputtags::part ne '' ||
828: $Apache::lonhomework::parsing_a_problem) {
829: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 830: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 831: return '';
832: }
1.184 albertel 833:
834: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 835: &init_problem_globals('problem');
1.166 albertel 836:
1.284 albertel 837: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 838: $Apache::lonhomework::scantronmode=1;
839: }
1.161 albertel 840:
1.159 albertel 841: if ($target ne 'analyze') {
1.415 raeburn 842: my $type = &Apache::lonnet::EXT('resource.0.type');
843: $Apache::lonhomework::type=$type;
1.284 albertel 844: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 845: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 846: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 847: }
1.332 albertel 848: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 849: }
1.164 albertel 850: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 851: my $uri=$env{'request.uri'};
1.159 albertel 852: if ($uri=~/\.(\w+)$/) {
853: $Apache::lonhomework::type=$1;
854: &Apache::lonxml::debug("Using type of $1");
855: } else {
856: $Apache::lonhomework::type='problem';
857: &Apache::lonxml::debug("Using default type, problem, :$uri:");
858: }
1.87 albertel 859: }
1.301 albertel 860: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 861:
1.363 albertel 862: &initialize_storage();
1.389 albertel 863: if ($target ne 'analyze'
864: && $env{'request.state'} eq 'construct') {
865: &set_problem_state('0');
866: }
867:
1.366 albertel 868: if ($target eq 'web') {
869: &Apache::lonxml::debug(" grading history ");
870: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
871: }
1.363 albertel 872:
1.159 albertel 873: #added vars to the scripting enviroment
1.213 albertel 874: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 875: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 876: &Apache::run::run($expression,$safeeval);
1.159 albertel 877: my $status;
878: my $accessmsg;
879:
1.343 albertel 880: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 881: my ($result,$form_tag_start);
1.354 albertel 882: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
883: || $target eq 'edit') {
1.350 albertel 884: ($result,$form_tag_start) =
885: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
886: $name);
887: }
888:
1.284 albertel 889: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 890:
891: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
892: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
893: $target eq 'tex') {
894: #handle exam checkout
895: if ($Apache::lonhomework::type eq 'exam') {
896: my $token=
897: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 898: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 899: $token=&Apache::lonxml::maketoken();
900: $Apache::lonhomework::history{"resource.0.outtoken"}=
901: $token;
902: }
1.343 albertel 903: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 904: }
1.284 albertel 905: if ($env{'form.markaccess'}) {
1.414 albertel 906: my @interval=&Apache::lonnet::EXT("resource.0.interval");
907: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 908: }
1.159 albertel 909: #handle rand seed in construction space
910: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 911: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 912: if ($env{'request.state'} ne "construct" &&
913: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 914: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
915: $rndseed.'" />'.
916: '<input type="submit" name="resetdata"
1.334 albertel 917: value="'.&mt('New Problem Variation').'" />';
918: if (exists($env{'form.username'})) {
919: $form_tag_start.=
1.164 albertel 920: '<input type="hidden" name="username"
1.284 albertel 921: value="'.$env{'form.username'}.'" />';
1.334 albertel 922: }
1.333 albertel 923: if ($env{'request.role.adv'}) {
1.267 albertel 924: $form_tag_start.=
1.440 bisitz 925: ' <label><input type="checkbox" name="showallfoils"';
1.284 albertel 926: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 927: $form_tag_start.=' checked="checked"';
1.267 albertel 928: }
1.300 albertel 929: $form_tag_start.= ' />'.&mt(' Show All Foils').
930: '</label>';
1.267 albertel 931: }
1.417 www 932: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 933: $form_tag_start.=&practice_problem_header();
1.417 www 934: }
1.267 albertel 935: $form_tag_start.='<hr />';
1.162 albertel 936: }
1.324 albertel 937:
938: ($status,$accessmsg,my $slot_name,my $slot) =
939: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 940: push (@Apache::inputtags::status,$status);
1.324 albertel 941:
1.159 albertel 942: my $expression='$external::datestatus="'.$status.'";';
943: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
944: &Apache::run::run($expression,$safeeval);
945: &Apache::lonxml::debug("Got $status");
1.324 albertel 946:
1.159 albertel 947: if (( $status eq 'CLOSED' ) ||
948: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 949: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 950: ( $status eq 'BANNED') ||
1.216 albertel 951: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 952: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 953: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 954: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
955: $style);
1.159 albertel 956: if ( $target eq "web" ) {
1.343 albertel 957: my $msg;
1.159 albertel 958: if ($status eq 'UNAVAILABLE') {
1.245 albertel 959: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 960: } elsif ($status eq 'NOT_IN_A_SLOT') {
961: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 962: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 963: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 964: }
1.216 albertel 965: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 966: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 967: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 968: $msg.=&checkout_msg();
1.252 albertel 969: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 970: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 971: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 972: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 973: }
974: $result.=$msg.'<br />';
975: } elsif ($target eq 'tex') {
1.332 albertel 976: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
977: : '\begin{minipage}{\textwidth}';
1.443 foxr 978: $result.='\noindent \vskip 1 mm '.
1.332 albertel 979: $startminipage.'\vskip 0 mm';
1.159 albertel 980: if ($status eq 'UNAVAILABLE') {
1.211 albertel 981: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 982: } else {
1.211 albertel 983: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 984: }
985: }
1.324 albertel 986: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 987: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
988: $style);
1.324 albertel 989: if ($target eq 'web') {
1.375 albertel 990: $result .=
991: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 992: } elsif ($target eq 'grade') {
993: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
994: 'problem');
995: }
1.159 albertel 996: } elsif ($target eq 'web') {
1.360 albertel 997: if ($status eq 'CAN_ANSWER'
998: && $slot_name ne ''
999: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1000: # unproctored slot access, self checkin
1001: &Apache::bridgetask::check_in('problem',undef,undef,
1002: $slot_name);
1003: }
1.368 albertel 1004: $result.="\n $form_tag_start \t".
1.227 albertel 1005: '<input type="hidden" name="submitted" value="yes" />';
1006: # create a page header and exit
1.284 albertel 1007: if ($env{'request.state'} eq "construct") {
1008: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1009: if ($Apache::lonhomework::type eq 'practice') {
1010: $result.= '<input type="submit" name="resetdata" '.
1011: 'value="'.&mt('New Problem Variation').'" />'.
1012: &practice_problem_header().'<hr />';
1013: }
1.227 albertel 1014: }
1015: # if we are viewing someone else preserve that info
1.284 albertel 1016: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1017: foreach my $field ('symb','courseid','domain','username') {
1018: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1019: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1020: }
1021: }
1022: } elsif ($target eq 'tex') {
1.319 foxr 1023: $result .= 'INSERTTEXFRONTMATTERHERE';
1024:
1.99 sakharuk 1025: }
1.159 albertel 1026: } elsif ($target eq 'edit') {
1.343 albertel 1027: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1028: $Apache::lonxml::warnings_error_header=
1029: &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 1030: my $temp=&Apache::edit::insertlist($target,$token);
1031: $result.=$temp;
1032: } elsif ($target eq 'modified') {
1033: $result=$token->[4];
1034: } else {
1035: # page_start returned a starting result, delete it if we don't need it
1036: $result = '';
1.99 sakharuk 1037: }
1.159 albertel 1038: return $result;
1.9 albertel 1039: }
1040:
1041: sub end_problem {
1.159 albertel 1042: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1043: my $result;
1.310 foxr 1044:
1.321 albertel 1045: if (!$Apache::lonxml::metamode) {
1046: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1047: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1048: }
1.319 foxr 1049:
1050: if ($target eq 'tex') {
1.321 albertel 1051: # Figure out the front matter and replace the
1052: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1053: # this in end_problem because whether or not we display due
1054: # dates depends on whether due dates have already been
1055: # displayed in the problem parts.
1056:
1.319 foxr 1057: my $frontmatter = '';
1058: my $startminipage = '';
1059: if (not $env{'form.problem_split'}=~/yes/) {
1060: $startminipage = '\begin{minipage}{\textwidth}';
1061: }
1062: my $id = $Apache::inputtags::part;
1063: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1064: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1065: my @packages = split /,/,$packages;
1066: my $allow_print_points = 0;
1067: foreach my $partial_key (@packages) {
1068: if ($partial_key=~m/^part_0$/) {
1069: $allow_print_points=1;
1070: }
1071: }
1072: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1073: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1074: if (lc($env{'course.'.$env{'request.course.id'}.
1075: '.disableexampointprint'}) eq 'yes') {
1076: $allow_print_points=0;
1077: }
1078: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1079: 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 1080: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1081: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1082:
1083: # Figure out what the due date is and if we need to print
1084: # it in the problem header. We have been logging the
1085: # last due date written to file.
1086:
1087: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1088: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1089: my $duedate_text = &mt('Due date: [_1]'
1090: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1091: my $temp_file;
1092: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1093:
1094: # Figure out what the last printed due date is or set it
1095: # to the epoch if no duedates have been printed.
1096:
1097: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1098: if (-e $filename) {
1099: $temp_file = Apache::File->new($filename);
1100: my @due_file = <$temp_file>;
1101: $due_file_content = $due_file[$#due_file];
1102: chomp $due_file_content;
1103: }
1104:
1105: # We display the due date iff it is not the same as the last
1106: # duedate in problem header ($due_file_content), and
1107: # none of our parts displayed a duedate.
1108: #
1109: my $parts_with_displayduedate;
1110: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1111: $parts_with_displayduedate =
1112: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1113: } else {
1114: $parts_with_displayduedate = 0;
1115: }
1116: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1117: $temp_file = Apache::File->new('>'.$filename);
1118: print $temp_file "$duetime\n";
1119: if (not $env{'request.symb'} =~ m/\.page_/) {
1120: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1121: $frontmatter .= $begin_doc.
1.448 bisitz 1122: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1123: } else {
1124: $frontmatter.= $begin_doc.$toc_line;
1125: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1126: }
1127: } else {
1.448 bisitz 1128: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1129: }
1130: } else {
1131: if (not $env{'request.symb'} =~ m/\.page_/) {
1132: $frontmatter .= $begin_doc.$toc_line;
1133: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1134: } else {
1.381 albertel 1135: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1136: }
1137: }
1138: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1139: }
1140:
1.159 albertel 1141: my $status=$Apache::inputtags::status['-1'];
1142: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1143: $target eq 'tex') {
1.249 albertel 1144: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1145: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1146: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1147: &Apache::inputtags::grade;
1.324 albertel 1148: } elsif ($status eq 'NEEDS_CHECKIN') {
1149: # no need to grade, and don't want to hide data
1.249 albertel 1150: } else {
1151: # move any submission data to .hidden
1152: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1153: }
1.159 albertel 1154: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1155: $Apache::inputtags::part eq '0' &&
1.252 albertel 1156: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1157: # if part is zero, no <part>s existed, so we need show the current
1158: # grading status
1159: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1160: $result.= $gradestatus;
1161: }
1162: if (
1.284 albertel 1163: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1164: ($target eq 'answer') || ($target eq 'tex')
1165: ) {
1.227 albertel 1166: if ($target ne 'tex' &&
1.284 albertel 1167: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1168: $result.="</form>";
1.348 albertel 1169: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1170: }
1171: if ($target eq 'web') {
1.346 albertel 1172: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1173: } elsif ($target eq 'tex') {
1.178 sakharuk 1174: my $endminipage = '';
1.284 albertel 1175: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1176: $endminipage = '\end{minipage}';
1177: }
1.284 albertel 1178: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1179: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1180: } else {
1.262 sakharuk 1181: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1182: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1183: $result .= $endminipage.'\end{document} ';
1184: } else {
1.382 albertel 1185: $result .= $endminipage;
1.262 sakharuk 1186: }
1.159 albertel 1187: }
1188: }
1189: }
1190: if ($target eq 'grade') {
1191: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1192: &finalize_storage();
1193: }
1.284 albertel 1194: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1195: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1196: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1197: # normally we get it from above, but in CSTR
1.172 albertel 1198: # we always show answer mode too.
1.159 albertel 1199: }
1200: } elsif ($target eq 'meta') {
1201: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1202: @Apache::inputtags::response=();
1.159 albertel 1203: $result=&Apache::response::mandatory_part_meta;
1204: }
1.215 albertel 1205: $result.=&Apache::response::meta_part_order();
1.258 albertel 1206: $result.=&Apache::response::meta_response_order();
1.159 albertel 1207: } elsif ($target eq 'edit') {
1208: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1209: $result .= &problem_edit_footer();
1.320 albertel 1210: } elsif ($target eq 'modified') {
1211: $result .= $token->[2];
1.159 albertel 1212: }
1.155 albertel 1213:
1.284 albertel 1214: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1215: &Apache::inputtags::check_for_duplicate_ids();
1216: }
1.204 albertel 1217:
1218: &reset_problem_globals('problem');
1.159 albertel 1219:
1220: return $result;
1.48 albertel 1221: }
1222:
1.108 albertel 1223:
1.48 albertel 1224: sub start_library {
1.159 albertel 1225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1226: my ($result,$form_tag_start);
1.371 albertel 1227: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1228: &init_problem_globals('library');
1229: $Apache::lonhomework::type='problem';
1230: }
1.159 albertel 1231: if ($target eq 'edit') {
1.343 albertel 1232: ($result,$form_tag_start)=
1233: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1234: 'Edit');
1235: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1236: my $temp=&Apache::edit::insertlist($target,$token);
1237: $result.=$temp;
1238: } elsif ($target eq 'modified') {
1239: $result=$token->[4];
1.340 albertel 1240: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1241: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1242: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1243: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1244: ($result,$form_tag_start)=
1245: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1246: $name);
1.159 albertel 1247: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1248: $result.=" \n $form_tag_start".
1.159 albertel 1249: '<input type="hidden" name="submitted" value="yes" />';
1250: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1251: if ($Apache::lonhomework::type eq 'practice') {
1252: $result.= '<input type="submit" name="resetdata" '.
1253: 'value="'.&mt('New Problem Variation').'" />'.
1254: &practice_problem_header().'<hr />';
1255: }
1.159 albertel 1256: }
1257: return $result;
1.48 albertel 1258: }
1259:
1260: sub end_library {
1.159 albertel 1261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1262: my $result='';
1263: if ($target eq 'edit') {
1264: $result=&problem_edit_footer();
1.371 albertel 1265: } elsif ($target eq 'web'
1266: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1267: && $env{'request.state'} eq "construct") {
1.349 albertel 1268: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1269: }
1.371 albertel 1270: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1271: &reset_problem_globals('library');
1272: }
1.159 albertel 1273: return $result;
1.197 www 1274: }
1275:
1276: sub start_definetag {
1.326 albertel 1277: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1278:
1279: my $result;
1280:
1281: my $name = $token->[2]->{'name'};
1.326 albertel 1282: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1283: if ($target eq 'web') {
1284: if ($name=~/^\//) {
1285: $result=
1286: '<br /><table class="LC_sty_end"><tr><th>'.
1287: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1288: } else {
1289: $result=
1290: '<br /><table class="LC_sty_begin"><tr><th>'.
1291: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1292: }
1293: $skip = &HTML::Entities::encode($skip, '<>&"');
1294: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1295: }
1296: return $result;
1297: }
1298:
1299: sub end_definetag {
1300: return '';
1.1 albertel 1301: }
1302:
1303: sub start_block {
1.201 albertel 1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1305:
1306: my $result;
1.1 albertel 1307:
1.339 albertel 1308: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1309: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1310: my $code = $token->[2]->{'condition'};
1.385 albertel 1311: if (defined($code) && $code ne '') {
1.137 albertel 1312: if (!$Apache::lonxml::default_homework_loaded) {
1313: &Apache::lonxml::default_homework_load($safeeval);
1314: }
1.131 albertel 1315: $result = &Apache::run::run($code,$safeeval);
1316: &Apache::lonxml::debug("block :$code: returned :$result:");
1317: } else {
1318: $result='1';
1319: }
1320: if ( ! $result ) {
1.201 albertel 1321: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1322: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1323: }
1324: $result='';
1325: } elsif ($target eq 'edit') {
1326: $result .=&Apache::edit::tag_start($target,$token);
1327: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1328: $token,40);
1329: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1330: } elsif ($target eq 'modified') {
1331: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1332: $safeeval,'condition');
1333: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1334: }
1.131 albertel 1335: return $result;
1.1 albertel 1336: }
1337:
1338: sub end_block {
1.167 www 1339: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1340: my $result;
1341: if ($target eq "edit") {
1342: $result.= &Apache::edit::tag_end($target,$token,'');
1343: }
1344: return $result;
1345: }
1346:
1347: sub start_languageblock {
1.201 albertel 1348: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1349:
1350: my $result;
1351:
1.339 albertel 1352: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1353: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1354: my $include = $token->[2]->{'include'};
1355: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1356: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1357: # This should not even happen, since we should at least have the server language
1.398 www 1358: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1359: # Now loop over all languages in order of preference
1360: foreach my $preferred_language (@preferred_languages) {
1.394 www 1361: # If the languageblock has no arguments, show the contents
1.399 www 1362: $result=1;
1363: my $found=0;
1.394 www 1364: # Do we have an include argument?
1.398 www 1365: if ($include) {
1.394 www 1366: # If include is specified, by default, don't render the block
1.399 www 1367: $result=0;
1.398 www 1368: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1369: # ... but if my preferred language is included, render it
1.398 www 1370: if ($included_language eq $preferred_language) {
1.399 www 1371: $result=1;
1372: $found=1;
1.398 www 1373: }
1374: }
1375: }
1.394 www 1376: # Do we have an exclude argument?
1.398 www 1377: if ($exclude) {
1.399 www 1378: $result=1;
1.398 www 1379: foreach my $excluded_language (split(/\,/,$exclude)) {
1380: if ($excluded_language eq $preferred_language) {
1.399 www 1381: $result=0;
1382: $found=1;
1.398 www 1383: }
1384: }
1385: }
1.399 www 1386: if ($found) { last; }
1.398 www 1387: }
1.201 albertel 1388: if ( ! $result ) {
1389: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1390: $style);
1391: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1392: }
1393: $result='';
1.167 www 1394: } elsif ($target eq 'edit') {
1395: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1396: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1397: $token,40);
1.211 albertel 1398: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1399: $token,40);
1400: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1401: } elsif ($target eq 'modified') {
1402: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1403: $safeeval,'include',
1404: 'exclude');
1.167 www 1405: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1406: }
1407: return $result;
1408: }
1409:
1410: sub end_languageblock {
1.170 www 1411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1412: my $result;
1.201 albertel 1413: if ($target eq "edit") {
1.170 www 1414: $result.= &Apache::edit::tag_end($target,$token,'');
1415: }
1416: return $result;
1417: }
1418:
1.397 albertel 1419: {
1420: my %available_texts;
1421: sub start_translated {
1422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1423: &Apache::lonxml::register('Apache::structuretags',('lang'));
1424: undef(%available_texts);
1425: }
1426:
1427: sub end_translated {
1428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1429: my $result;
1430: #show the translation on viewable targets
1431: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1432: # or non-viewable targets, if it's embedded in something that
1433: # wants the output
1434: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1435: && &Apache::lonxml::in_redirection() ) ) {
1436: my @possibilities = keys(%available_texts);
1437: my $which =
1438: &Apache::loncommon::languages(\@possibilities) || 'default';
1439: $result = $available_texts{$which};
1440: }
1441: undef(%available_texts);
1442: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1443: return $result;
1444: }
1445:
1446:
1447: sub start_lang {
1448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1449: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1450: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1451: &Apache::lonxml::startredirection();
1452: }
1453: return '';
1454: }
1455:
1456: sub end_lang {
1457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1458: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1459: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1460: my $result = &Apache::lonxml::endredirection();
1461: my $which = &Apache::lonxml::get_param('which',$parstack,
1462: $safeeval);
1.431 raeburn 1463: if ($which=~/\w/) {
1464: $available_texts{$which} = $result;
1465: }
1466: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1467: $safeeval);
1468: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1469: if ($language=~/\w/) {
1470: $available_texts{$language} = $result;
1471: }
1.427 bisitz 1472: }
1473:
1.397 albertel 1474: }
1475: return '';
1476: }
1477: }
1478:
1.170 www 1479: sub start_instructorcomment {
1.201 albertel 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1481:
1482: my $result;
1483:
1.339 albertel 1484: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1485: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1486: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1487: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1488: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1489: $parser,$style);
1.170 www 1490: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1491: }
1492: $result='';
1493: } elsif ($target eq 'edit') {
1494: $result .=&Apache::edit::tag_start($target,$token);
1495: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1496: }
1497: return $result;
1498: }
1499:
1500: sub end_instructorcomment {
1.159 albertel 1501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1502: my $result;
1503: if ($target eq "edit") {
1504: $result.= &Apache::edit::tag_end($target,$token,'');
1505: }
1506: return $result;
1.4 tsai 1507: }
1508:
1509: sub start_while {
1.326 albertel 1510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1511:
1.160 albertel 1512: my $result;
1.339 albertel 1513: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1514: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1515: my $code = $token->[2]->{'condition'};
1.4 tsai 1516:
1.160 albertel 1517: push( @Apache::structuretags::whileconds, $code);
1518: if (!$Apache::lonxml::default_homework_loaded) {
1519: &Apache::lonxml::default_homework_load($safeeval);
1520: }
1521: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1522: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1523: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1524: push( @Apache::structuretags::whileline, $token->[5]);
1525: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1526: if ( $result ) {
1527: &Apache::lonxml::newparser($parser,\$bodytext);
1528: }
1529: } elsif ($target eq 'edit') {
1530: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1531: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1532: $token,40);
1533: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1534: } elsif ($target eq 'modified') {
1535: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1536: $safeeval,'condition');
1537: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1538: }
1.160 albertel 1539: return $result;
1.4 tsai 1540: }
1541:
1542: sub end_while {
1.159 albertel 1543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1544: my $result;
1545:
1.339 albertel 1546: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1547: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1548: my $code = pop(@Apache::structuretags::whileconds);
1549: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1550: my $line = pop(@Apache::structuretags::whileline);
1551: my $return = &Apache::run::run($code,$safeeval);
1552: my $starttime=time;
1553: my $error=0;
1554: while ($return) {
1555: if (time-$starttime >
1556: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1557: $return = 0; $error=1; next;
1.161 albertel 1558: }
1559: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1560: if ($target eq 'grade' || $target eq 'answer' ||
1561: $target eq 'analyze') {
1562: # grade/answer/analyze should produce no output but if we
1563: # are redirecting, the redirecter should know what to do
1564: # with the output
1565: if (!$Apache::lonxml::redirection) { undef($result); }
1566: }
1.161 albertel 1567: $return = &Apache::run::run($code,$safeeval);
1568: }
1569: if ($error) {
1.430 bisitz 1570: &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 1571: }
1572: } elsif ($target eq "edit") {
1573: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1574: }
1.160 albertel 1575: return $result;
1.1 albertel 1576: }
1.6 tsai 1577:
1.160 albertel 1578: # <randomlist show="1">
1.6 tsai 1579: # <tag1>..</tag1>
1580: # <tag2>..</tag2>
1581: # <tag3>..</tag3>
1.160 albertel 1582: # ...
1.6 tsai 1583: # </randomlist>
1584: sub start_randomlist {
1.326 albertel 1585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1586: my $result;
1.339 albertel 1587: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1588: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1589: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1590: my $b_parser= HTML::LCParser->new(\$body);
1591: $b_parser->xml_mode(1);
1592: $b_parser->marked_sections(1);
1.159 albertel 1593: my $b_tok;
1594: my @randomlist;
1595: my $list_item;
1596: while($b_tok = $b_parser->get_token() ) {
1597: if($b_tok->[0] eq 'S') { # start tag
1598: # get content of the tag until matching end tag
1599: # get all text upto the matching tag
1600: # and push the content into @randomlist
1601: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1602: $b_parser);
1603: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1604: push(@randomlist,$list_item);
1605: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1606: # $list_item</b>";
1607: }
1608: if($b_tok->[0] eq 'T') { # text
1609: # what to do with text in between tags?
1610: # print "<b>TEXT $b_tok->[1]</b><br />";
1611: }
1612: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1613: # print "<b>END-TAG $b_tok->[1]</b><br />";
1614: # }
1615: }
1.303 albertel 1616: if (@randomlist) {
1617: my @idx_arr = (0 .. $#randomlist);
1618: &Apache::structuretags::shuffle(\@idx_arr);
1619: my $bodytext = '';
1620: my $show=$#randomlist;
1621: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1622: $showarg--;
1623: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1624: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1625: my @currlist;
1626: my $part = $Apache::inputtags::part;
1627: if ($part ne '') {
1628: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1629: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1630: if (!(grep(/^\Q$part\E$/,@currlist))) {
1631: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1632: }
1633: } else {
1634: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1635: }
1636: }
1637: }
1.303 albertel 1638: for(0 .. $show) {
1639: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1640: }
1641: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1642: }
1643: } elsif ($target eq 'edit' ) {
1644: $result .=&Apache::edit::tag_start($target,$token);
1645: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1646: $token,5);
1647: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1648: } elsif ($target eq 'modified' ) {
1649: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1650: $safeeval,'show');
1651: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1652: }
1653: return $result;
1.7 tsai 1654: }
1655:
1656: sub shuffle {
1657: my $a=shift;
1658: my $i;
1.303 albertel 1659: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1660: &Apache::response::pushrandomnumber();
1.159 albertel 1661: for($i=@$a;--$i;) {
1662: my $j=int(&Math::Random::random_uniform() * ($i+1));
1663: next if $i == $j;
1664: @$a[$i,$j] = @$a[$j,$i];
1665: }
1.251 albertel 1666: &Apache::response::poprandomnumber();
1.7 tsai 1667: }
1.6 tsai 1668: }
1669:
1670: sub end_randomlist {
1.159 albertel 1671: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1672: my $result;
1673: if ($target eq 'edit' ) {
1674: $result=&Apache::edit::tag_end($target,$token,
1675: 'End Randomly Parsed Block');
1676: }
1677: return $result;
1.6 tsai 1678: }
1679:
1.283 albertel 1680: sub ordered_show_check {
1681: my $last_part=$Apache::inputtags::partlist[-2];
1682: my $in_order=
1683: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1684: my $in_order_show=1;
1685: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1686: $in_order_show=&Apache::response::check_status($last_part);
1687: }
1688: return $in_order_show;
1689: }
1690:
1.11 albertel 1691: sub start_part {
1.326 albertel 1692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1693: if (!$Apache::lonxml::metamode) {
1694: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1695: # duedates.
1696: }
1.159 albertel 1697: my $result='';
1.386 albertel 1698: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1699: $Apache::inputtags::part=$id;
1.177 albertel 1700: push(@Apache::inputtags::partlist,$id);
1701: @Apache::inputtags::response=();
1.159 albertel 1702: @Apache::inputtags::previous=();
1703: @Apache::inputtags::previous_version=();
1.405 albertel 1704: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1705: &Apache::response::reset_params();
1706:
1.159 albertel 1707: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1708: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1709: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1710: my $in_order_show=&ordered_show_check();
1.214 albertel 1711: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1712: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1713: &Apache::run::run($expression,$safeeval);
1.159 albertel 1714:
1715: if ($target eq 'meta') {
1.224 www 1716: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1717: return &Apache::response::mandatory_part_meta.
1718: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1719: } elsif ($target eq 'web' || $target eq 'grade' ||
1720: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1721: if ($hidden || !$in_order_show) {
1.326 albertel 1722: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1723: } else {
1724: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1725: push (@Apache::inputtags::status,$status);
1726: my $expression='$external::datestatus="'.$status.'";';
1727: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1728: &Apache::run::run($expression,$safeeval);
1.284 albertel 1729: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1730: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1731: }
1.216 albertel 1732: if (( $status eq 'CLOSED' ) ||
1733: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1734: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1735: ( $status eq 'BANNED') ||
1736: ( $status eq 'UNAVAILABLE') ||
1737: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1738: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1739: $style);
1.159 albertel 1740: if ( $target eq "web" ) {
1.211 albertel 1741: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1742: } elsif ( $target eq 'tex' ) {
1.284 albertel 1743: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1744: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1745: } else {
1.211 albertel 1746: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1747: }
1.159 albertel 1748: }
1749: } else {
1750: if ($target eq 'tex') {
1.284 albertel 1751: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1752: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1753: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1754: } else {
1755: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1756: }
1.195 sakharuk 1757: }
1.159 albertel 1758: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1759: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1760: my @allkeys = split /,/,$allkeys;
1761: my $allow_print_points = 0;
1762: foreach my $partial_key (@allkeys) {
1.230 albertel 1763: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1764: if ($1 ne '0') {$allow_print_points=1;}
1765: }
1766: }
1.275 albertel 1767: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1768: if (defined($maxtries) && $maxtries < 0) {
1769: $allow_print_points=0;
1770: }
1.302 albertel 1771: if (lc($env{'course.'.$env{'request.course.id'}.
1772: '.disableexampointprint'}) eq 'yes') {
1773: $allow_print_points=0;
1774: }
1.222 sakharuk 1775: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1776: } elsif ($target eq 'web') {
1.356 www 1777: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1778: }
1779: }
1780: }
1781: } elsif ($target eq 'edit') {
1782: $result.=&Apache::edit::tag_start($target,$token);
1783: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1784: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1785: ' '.
1786: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1787: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1788: } elsif ($target eq 'modified') {
1789: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1790: $safeeval,'id','display');
1.159 albertel 1791: if ($constructtag) {
1.225 albertel 1792: #limiting ids to only letters numbers, and space
1.224 www 1793: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1794: $result = &Apache::edit::rebuild_tag($token);
1795: }
1796: }
1797: return $result;
1.11 albertel 1798: }
1799:
1800: sub end_part {
1.159 albertel 1801: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1802: &Apache::lonxml::debug("in end_part $target ");
1803: my $status=$Apache::inputtags::status['-1'];
1804: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1805: my $in_order_show=&ordered_show_check();
1.321 albertel 1806: my $result;
1807: if (!$Apache::lonxml::metamode) {
1808: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1809: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1810: }
1.312 albertel 1811: if ($target eq 'grade') {
1.249 albertel 1812: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1813: !$hidden && $in_order_show) {
1.311 foxr 1814: $result.=&Apache::inputtags::grade;
1.249 albertel 1815: } else {
1816: # move any submission data to .hidden
1817: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1818: }
1.283 albertel 1819: } elsif (($target eq 'web' || $target eq 'tex') &&
1820: !$hidden && $in_order_show) {
1.159 albertel 1821: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1822: $target);
1.212 albertel 1823: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1824: $gradestatus='';
1825: }
1.311 foxr 1826: $result.=$gradestatus;
1.265 sakharuk 1827: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1828: } elsif ($target eq 'edit') {
1.311 foxr 1829: $result.=&Apache::edit::end_table();
1.322 albertel 1830: } elsif ($target eq 'modified') {
1831: $result .= $token->[2];
1.159 albertel 1832: }
1833: pop @Apache::inputtags::status;
1834: $Apache::inputtags::part='';
1.295 albertel 1835: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1836: return $result;
1.11 albertel 1837: }
1.1 albertel 1838:
1.25 albertel 1839: sub start_preduedate {
1.326 albertel 1840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1841: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1842: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1843: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1844: if (!$Apache::lonhomework::scantronmode &&
1845: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1846: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1847: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1848: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1849: }
1.24 albertel 1850: }
1.159 albertel 1851: return '';
1.24 albertel 1852: }
1853:
1.25 albertel 1854: sub end_preduedate {
1.159 albertel 1855: return '';
1.24 albertel 1856: }
1857:
1.369 foxr 1858: # In all the modes where <postanswerdate> text is
1859: # displayable, all we do is eat up the text between the start/stop
1860: # tags if the conditions are not right to display it.
1.25 albertel 1861: sub start_postanswerdate {
1.326 albertel 1862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1863: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1864: &Apache::lonnet::allowed('pav',
1865: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1866: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1867: $target eq 'tex' ) {
1.300 albertel 1868: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1869: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1870: (($target eq 'tex') && !$pav)) {
1.326 albertel 1871: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1872: }
1873: }
1874: return '';
1.24 albertel 1875: }
1876:
1.25 albertel 1877: sub end_postanswerdate {
1.159 albertel 1878: return '';
1.24 albertel 1879: }
1880:
1.25 albertel 1881: sub start_notsolved {
1.326 albertel 1882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1883: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1884: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1885: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1886: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1887: if ($gradestatus =~ /^correct/ &&
1888: &Apache::response::show_answer()) {
1.159 albertel 1889: &Apache::lonxml::debug("skipping");
1.326 albertel 1890: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1891: }
1.24 albertel 1892: }
1.159 albertel 1893: return '';
1.24 albertel 1894: }
1895:
1.25 albertel 1896: sub end_notsolved {
1.159 albertel 1897: return '';
1.24 albertel 1898: }
1899:
1900: sub start_solved {
1.326 albertel 1901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1902: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1903: $target eq 'tex') {
1904: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1905: if ($gradestatus !~ /^correct/ ||
1906: !&Apache::response::show_answer()) {
1.326 albertel 1907: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1908: }
1.24 albertel 1909: }
1.159 albertel 1910: return '';
1.24 albertel 1911: }
1912:
1913: sub end_solved {
1.248 albertel 1914: return '';
1915: }
1916:
1917: sub start_problemtype {
1.326 albertel 1918: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1919: my $result;
1.339 albertel 1920: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1921: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1922: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1923: if (!defined($mode)) { $mode='show'; }
1924: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1925: my $found=0;
1926: foreach my $type (split(',',$for)) {
1927: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1928: }
1929: if ($mode eq 'show' && !$found) {
1.326 albertel 1930: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1931: }
1932: if ($mode eq 'hide' && $found) {
1.326 albertel 1933: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1934: }
1935: } elsif ($target eq 'edit') {
1936: $result .=&Apache::edit::tag_start($target,$token);
1937: $result.=&Apache::edit::select_arg('Mode:','mode',
1938: [['show','Show'],
1939: ['hide','Hide']]
1940: ,$token);
1941: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1942: [ ['exam','Exam/Quiz Problem'],
1943: ['survey','Survey'],
1.428 raeburn 1944: ['problem','Homework Problem'],
1945: ['practice','Practice Problem'] ]
1.248 albertel 1946: ,$token);
1947: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1948: } elsif ($target eq 'modified') {
1949: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1950: $safeeval,'mode','for');
1951: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1952: }
1953: return $result;
1954: }
1955:
1956: sub end_problemtype {
1.159 albertel 1957: return '';
1.24 albertel 1958: }
1.34 albertel 1959:
1960: sub start_startouttext {
1.159 albertel 1961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1962: my @result=(''.'');
1963: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1964:
1965: my $nesting =
1966: &Apache::lonxml::set_state('outtext',
1967: &Apache::lonxml::get_state('outtext')+1);
1968: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1969: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1970: }
1.159 albertel 1971: return (@result);
1.34 albertel 1972: }
1.159 albertel 1973:
1.34 albertel 1974: sub end_startouttext {
1.326 albertel 1975: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1976: my $result='';
1977: my $text='';
1978: if ($target eq 'edit') {
1.424 foxr 1979: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1980: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1981: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1982: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1983: .&Apache::edit::deletelist($target,$token)
1984: .'</span></td>';
1.425 raeburn 1985: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1986: $result .= '<td align="left">'
1987: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1988: .'</td>'
1989: .'<td>'
1990: .&Apache::edit::insertlist($target,$token)
1991: .'</td>';
1992: }
1.425 raeburn 1993: $result.='<td align="right" valign="top">' .
1.434 foxr 1994: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1995: &Apache::edit::end_row().
1.362 albertel 1996: &Apache::edit::start_spanning_row()."\n".
1.255 www 1997: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1998: }
1999: if ($target eq 'modified') {
1.219 albertel 2000: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2001: }
2002: if ($target eq 'tex') {
2003: $result .= '\noindent ';
2004: }
2005: return $result;
1.34 albertel 2006: }
1.159 albertel 2007:
1.34 albertel 2008: sub start_endouttext {
1.159 albertel 2009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2010: my $result='';
2011: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2012: if ($target eq "modified") {
2013: $result='<endouttext />'.
1.377 albertel 2014: &Apache::edit::handle_insertafter('startouttext');
2015: }
1.404 albertel 2016:
2017: my $nesting =
2018: &Apache::lonxml::set_state('outtext',
2019: &Apache::lonxml::get_state('outtext')-1);
2020: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2021: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2022: &Apache::lonxml::set_state('outtext', 0);
2023: }
1.159 albertel 2024: return $result;
1.34 albertel 2025: }
1.159 albertel 2026:
1.34 albertel 2027: sub end_endouttext {
1.159 albertel 2028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2029: my @result=('','');
2030: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2031: return (@result);
1.34 albertel 2032: }
1.159 albertel 2033:
1.45 albertel 2034: sub delete_startouttext {
1.326 albertel 2035: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2036: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2037: my $text=$$parser['-1']->get_text("/endouttext");
2038: my $ntoken=$$parser['-1']->get_token();
2039: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2040: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2041: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2042: # they did the last time round
2043: &Apache::lonxml::increasedepth($ntoken);
2044: &Apache::lonxml::decreasedepth($ntoken);
2045: return 1;
1.193 www 2046: }
2047:
2048: sub start_simpleeditbutton {
2049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2050: my $result='';
1.284 albertel 2051: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2052: ($target eq 'web') &&
1.330 albertel 2053: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2054: my $url=$env{'request.noversionuri'};
1.193 www 2055: $url=~s/\?.*$//;
1.367 albertel 2056: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2057: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2058: # $result='<p class="LC_warning">'
2059: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2060: # .&Apache::loncommon::help_open_topic('Caching')
2061: # .'</p>';
1.451 bisitz 2062: $result.=&Apache::lonhtmlcommon::start_funclist()
2063: .&Apache::lonhtmlcommon::add_item_funclist(
2064: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2065: .&mt('Edit').'</a>')
2066: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2067:
1.193 www 2068: }
2069: return $result;
2070: }
2071:
2072: sub end_simpleeditbutton {
2073: return '';
1.45 albertel 2074: }
1.34 albertel 2075:
1.428 raeburn 2076: sub practice_problem_header {
2077: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2078: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2079: '</span>';
2080: }
2081:
1.1 albertel 2082: 1;
2083: __END__
1.435 jms 2084:
2085: =pod
2086:
2087: =back
2088:
2089: =cut
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