Annotation of loncom/homework/structuretags.pm, revision 1.465.2.1
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.1! raeburn 4: # $Id: structuretags.pm,v 1.465 2010/02/28 23:28:54 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.446 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="';
1.465 raeburn 276: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 277: &Apache::lonenc::check_encrypt($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>
1.465 raeburn 475: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
476: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
477: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 478: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 479: </select>
1.406 albertel 480: </span>
481: $show_all
482: </div>
483: <div class='LC_edit_problem_header_row2'>
484: <span class=\"LC_nobreak\">
1.405 albertel 485: ".&mt("Feedback Mode:")."
1.235 albertel 486: <select name='problemstatus'>
487: <option value=''></option>
1.242 albertel 488: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 489: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
490: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 491: </select>
1.406 albertel 492: </span>
493: ";
494:
1.376 albertel 495: } elsif ($Apache::lonhomework::parsing_a_task) {
496: $result.="
1.406 albertel 497: <div class='LC_edit_problem_header_row1'>
498: <span class=\"LC_nobreak\">
1.405 albertel 499: ".&mt("Problem Status:")."
1.376 albertel 500: <select name='problemstate'>
501: <option value=''></option>
502: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
503: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
504: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
505: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
506: </select>
1.406 albertel 507: </span>
508: $show_all
509: ";
510: }
511: $result.='
512: <span class="LC_nobreak">
513: '.&mt('Apply style file: ').'
514: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
515: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
516: </span>
1.422 www 517: </div>
518: <div class="LC_edit_problem_header_row1">'.
519: &Apache::lonxml::renderingoptions().'
1.406 albertel 520: </div>
521: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
522: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
523: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
524: </div>
1.453 bisitz 525: <hr />
1.406 albertel 526: <div class="LC_edit_problem_header_randomize_row">
527: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
528: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
529: <input type="text" name="rndseed" size="10" value="'.
530: $rndseed.'"
531: onchange="javascript:document.lonhomework.changerandseed.click()" />';
532:
533: if (!$Apache::lonhomework::parsing_a_task) {
534: my $numtoanalyze=$env{'form.numtoanalyze'};
535: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 536: $result .= '<span class="LC_nobreak">'.
537: &mt('[_1] for [_2] versions.',
1.416 raeburn 538: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 539: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
540: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 541: $numtoanalyze.'" size="5" />').
542: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
543: '</span>';
544:
1.313 albertel 545: }
1.406 albertel 546:
547: $result.='
548: </div>
1.453 bisitz 549: <hr />
1.447 bisitz 550: <div>';
1.416 raeburn 551: $result.='<input type="hidden" name="problemmode" value="view" />';
552: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
553: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
554: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
555: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 556: $result.='
557: </div>
1.453 bisitz 558: <hr />
1.409 albertel 559: '.&Apache::lonxml::message_location().'
1.406 albertel 560: </div>';
1.159 albertel 561: return $result;
1.48 albertel 562: }
563:
1.65 albertel 564: sub initialize_storage {
1.357 albertel 565: my ($given_symb) = @_;
1.353 albertel 566: undef(%Apache::lonhomework::results);
567: undef(%Apache::lonhomework::history);
1.357 albertel 568: my ($symb,$courseid,$domain,$name) =
1.367 albertel 569: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 570:
571: # anonymous users (CODEd exams) have no data
572: if ($name eq 'anonymous'
573: && !defined($domain)) {
574: return;
575: }
576:
1.333 albertel 577: if ($env{'request.state'} eq 'construct'
578: || $symb eq ''
579: || $Apache::lonhomework::type eq 'practice') {
580:
581: my $namespace = $symb || $env{'request.uri'};
582: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 583: ($env{'form.resetdata'} eq &mt('New Problem Variation')
584: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 585: $env{'form.newrandomization'} eq &mt('New Randomization')) {
586: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
587: &Apache::lonxml::debug("Attempt reset");
588: }
1.159 albertel 589: %Apache::lonhomework::history=
1.333 albertel 590: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 591: my ($temp)=keys %Apache::lonhomework::history ;
592: &Apache::lonxml::debug("Return message of $temp");
593: } else {
594: %Apache::lonhomework::history=
595: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
596: }
1.353 albertel 597:
1.159 albertel 598: #ignore error conditions
1.67 albertel 599: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 600: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 601: }
602:
1.435 jms 603: =pod
604:
605: =item finalize_storage()
606:
607: Stores away the result has to a student's environment
608: checks form.grade_ for specific values, other wises stores
609: to the running users environment
610: Will increment totals for attempts, students, and corrects
611: if running user has student role.
612:
613: =cut
614:
615:
1.65 albertel 616: sub finalize_storage {
1.357 albertel 617: my ($given_symb) = @_;
1.159 albertel 618: my $result;
1.289 albertel 619: if (%Apache::lonhomework::results) {
1.323 albertel 620: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
621: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 622: my ($symb,$courseid,$domain,$name) =
1.367 albertel 623: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 624: if ($env{'request.state'} eq 'construct'
625: || $symb eq ''
626: || $Apache::lonhomework::type eq 'practice') {
627: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 628: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 629: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 630: $namespace,'',$domain,$name);
1.159 albertel 631: &Apache::lonxml::debug('Construct Store return message:'.$result);
632: } else {
633: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
634: $symb,$courseid,$domain,$name);
635: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 636: if ($env{'request.role'} =~/^st/) {
637: &store_aggregates($symb,$courseid);
638: }
1.159 albertel 639: }
1.323 albertel 640: } else {
641: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 642: }
1.159 albertel 643: return $result;
1.65 albertel 644: }
645:
1.435 jms 646: =pod
647:
648: item store_aggregates()
649:
650: Sends hash of values to be incremented in nohist_resourcetracker.db
651: for the course. Increments total number of attempts, unique students
652: and corrects for each part for an instance of a problem, as appropriate.
653:
654: =cut
655:
1.285 raeburn 656: sub store_aggregates {
657: my ($symb,$courseid) = @_;
1.286 albertel 658: my %aggregate;
659: my @parts;
1.288 albertel 660: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
661: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 662: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 663: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 664: push(@parts, $1);
1.285 raeburn 665: }
666: }
1.286 albertel 667: foreach my $part (@parts) {
668: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
669: eq 'APPROX_ANS' ||
670: $Apache::lonhomework::results{'resource.'.$part.'.award'}
671: eq 'EXACT_ANS') {
1.287 albertel 672: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 673: }
1.286 albertel 674: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 675: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 676: } else {
1.293 albertel 677: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 678: if ($last_reset) {
1.293 albertel 679: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 680: $aggregate{$symb."\0".$part."\0users"} = 1;
681: }
682: }
1.285 raeburn 683: }
1.287 albertel 684: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 685: }
1.292 raeburn 686: if (keys (%aggregate) > 0) {
1.289 albertel 687: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 688: $cdomain,$cname);
689: }
690: }
1.289 albertel 691:
1.65 albertel 692: sub checkout_msg {
1.211 albertel 693: my %lt=&Apache::lonlocal::texthash(
694: 'resource'=>'The resource needs to be checked out',
695: '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.',
696: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
697: 'checkout'=>'Check out Exam for Viewing',
698: 'checkout?'=>'Check out Exam?');
1.352 albertel 699: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 700: return (<<ENDCHECKOUT);
1.211 albertel 701: <h2>$lt{'resource'}</h2>
702: <p>$lt{'id_expln'}</p>
1.449 bisitz 703: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 704: <form name="checkout" method="post" action="$uri">
1.91 albertel 705: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 706: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 707: </form>
708: ENDCHECKOUT
709: }
710:
1.252 albertel 711: sub firstaccess_msg {
1.253 albertel 712: my ($time,$symb)=@_;
1.414 albertel 713: my $result;
714: my @interval=&Apache::lonnet::EXT("resource.0.interval");
715: if ($interval[1] eq 'map') {
716: my ($map)=&Apache::lonnet::decode_symb($symb);
717: my $foldertitle=&Apache::lonnet::gettitle($map);
718:
719: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 720: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
721: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
722: ,$foldertitle,$time)."</h2>";
1.414 albertel 723: } elsif ($interval[1] eq 'course') {
724: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 725: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
726: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
727: ,$course,$time)."</h2>";
1.414 albertel 728: } else {
729: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 730: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
731: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
732: ,$title,$time)."</h2>";
1.414 albertel 733: }
1.352 albertel 734: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 735: my $buttontext = &mt('Show Resource');
736: my $timertext = &mt('Start Timer?');
1.414 albertel 737: $result .= (<<ENDCHECKOUT);
1.444 bisitz 738: <form name="markaccess" method="post" action="$uri">
1.252 albertel 739: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 740: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 741: </form>
742: ENDCHECKOUT
1.414 albertel 743: return $result;
1.252 albertel 744: }
745:
1.204 albertel 746: sub init_problem_globals {
747: my ($type)=@_;
748: #initialize globals
1.308 foxr 749: # For problems, we start out in part 0 (outside a <part> tag).
750: # and part 0 is used to describe the main body of the <problem>
751: #
1.204 albertel 752: if ($type eq 'problem') {
753: $Apache::inputtags::part='0';
754: @Apache::inputtags::partlist=('0');
1.405 albertel 755: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 756: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 757:
1.266 albertel 758: } elsif ($type eq 'library') {
1.204 albertel 759: $Apache::inputtags::part='';
760: @Apache::inputtags::partlist=();
1.405 albertel 761: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 762: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 763:
1.304 albertel 764: } elsif ($type eq 'Task') {
765: $Apache::inputtags::part='0';
766: @Apache::inputtags::partlist=('0');
1.405 albertel 767: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 768: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 769: }
770: @Apache::inputtags::responselist = ();
771: @Apache::inputtags::importlist = ();
772: @Apache::inputtags::previous=();
773: @Apache::inputtags::previous_version=();
774: $Apache::structuretags::printanswer='No';
775: @Apache::structuretags::whileconds=();
776: @Apache::structuretags::whilebody=();
777: @Apache::structuretags::whileline=();
778: $Apache::lonhomework::scantronmode=0;
779: undef($Apache::lonhomework::name);
1.358 albertel 780: undef($Apache::lonhomework::default_type);
781: undef($Apache::lonhomework::type);
1.204 albertel 782: }
783:
784: sub reset_problem_globals {
785: my ($type)=@_;
786: undef(%Apache::lonhomework::history);
787: undef(%Apache::lonhomework::results);
788: undef($Apache::inputtags::part);
1.208 albertel 789: #don't undef this, lonhomework.pm takes care of this, we use this to
790: #detect if we try to do 2 problems in one file
791: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 792: undef($Apache::lonhomework::name);
1.358 albertel 793: undef($Apache::lonhomework::default_type);
794: undef($Apache::lonhomework::type);
795: undef($Apache::lonhomework::scantronmode);
796: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 797: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 798: }
799:
1.241 albertel 800: sub set_problem_state {
1.240 albertel 801: my ($part)=@_;
1.284 albertel 802: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 803: $Apache::lonhomework::history{"resource.$part.solved"}=
804: 'correct_by_student';
805: }
806: }
807:
1.241 albertel 808: sub get_problem_status {
809: my ($part)=@_;
1.267 albertel 810: my $problem_status;
1.284 albertel 811: if ($env{'request.state'} eq 'construct' &&
812: defined($env{'form.problemstatus'})) {
813: $problem_status=$env{'form.problemstatus'};
1.267 albertel 814: } else {
815: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
816: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 817: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 818: }
819: return $problem_status;
820: }
821:
1.9 albertel 822: sub start_problem {
1.326 albertel 823: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 824:
1.311 foxr 825: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 826: if (!$Apache::lonxml::metamode) {
827: &Apache::lonxml::startredirection();
828: }
1.311 foxr 829:
1.308 foxr 830: # Problems don't nest and we don't allow more than one <problem> in
831: # a .problem file.
832: #
1.184 albertel 833: if ( $Apache::inputtags::part ne '' ||
834: $Apache::lonhomework::parsing_a_problem) {
835: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 836: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 837: return '';
838: }
1.184 albertel 839:
840: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 841: &init_problem_globals('problem');
1.166 albertel 842:
1.284 albertel 843: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 844: $Apache::lonhomework::scantronmode=1;
845: }
1.161 albertel 846:
1.159 albertel 847: if ($target ne 'analyze') {
1.415 raeburn 848: my $type = &Apache::lonnet::EXT('resource.0.type');
849: $Apache::lonhomework::type=$type;
1.284 albertel 850: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 851: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 852: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 853: }
1.332 albertel 854: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 855: }
1.164 albertel 856: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 857: my $uri=$env{'request.uri'};
1.159 albertel 858: if ($uri=~/\.(\w+)$/) {
859: $Apache::lonhomework::type=$1;
860: &Apache::lonxml::debug("Using type of $1");
861: } else {
862: $Apache::lonhomework::type='problem';
863: &Apache::lonxml::debug("Using default type, problem, :$uri:");
864: }
1.87 albertel 865: }
1.301 albertel 866: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 867:
1.363 albertel 868: &initialize_storage();
1.389 albertel 869: if ($target ne 'analyze'
870: && $env{'request.state'} eq 'construct') {
871: &set_problem_state('0');
872: }
873:
1.366 albertel 874: if ($target eq 'web') {
875: &Apache::lonxml::debug(" grading history ");
876: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
877: }
1.363 albertel 878:
1.159 albertel 879: #added vars to the scripting enviroment
1.213 albertel 880: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 881: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 882: &Apache::run::run($expression,$safeeval);
1.159 albertel 883: my $status;
884: my $accessmsg;
885:
1.343 albertel 886: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 887: my ($result,$form_tag_start);
1.354 albertel 888: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
889: || $target eq 'edit') {
1.350 albertel 890: ($result,$form_tag_start) =
891: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
892: $name);
893: }
894:
1.284 albertel 895: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 896:
897: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
898: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
899: $target eq 'tex') {
900: #handle exam checkout
901: if ($Apache::lonhomework::type eq 'exam') {
902: my $token=
903: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 904: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 905: $token=&Apache::lonxml::maketoken();
906: $Apache::lonhomework::history{"resource.0.outtoken"}=
907: $token;
908: }
1.343 albertel 909: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 910: }
1.284 albertel 911: if ($env{'form.markaccess'}) {
1.414 albertel 912: my @interval=&Apache::lonnet::EXT("resource.0.interval");
913: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 914: }
1.159 albertel 915: #handle rand seed in construction space
916: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 917: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 918: if ($env{'request.state'} ne "construct" &&
919: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 920: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 921: $rndseed.'" />'.
922: '<input type="submit" name="resetdata"
923: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 924: if (exists($env{'form.username'})) {
925: $form_tag_start.=
1.164 albertel 926: '<input type="hidden" name="username"
1.284 albertel 927: value="'.$env{'form.username'}.'" />';
1.334 albertel 928: }
1.462 raeburn 929: if ($env{'request.role.adv'}) {
930: $form_tag_start.= ' <label class="LC_nobreak">'
931: .'<input type="checkbox" name="showallfoils"';
932: if (defined($env{'form.showallfoils'})) {
933: $form_tag_start.=' checked="checked"';
934: }
935: $form_tag_start.= ' /> '
936: .&mt('Show All Foils')
937: .'</label>';
938: }
1.417 www 939: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 940: $form_tag_start.=&practice_problem_header();
1.417 www 941: }
1.462 raeburn 942: $form_tag_start.='<hr />';
1.162 albertel 943: }
1.324 albertel 944:
945: ($status,$accessmsg,my $slot_name,my $slot) =
946: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 947: push (@Apache::inputtags::status,$status);
1.324 albertel 948:
1.159 albertel 949: my $expression='$external::datestatus="'.$status.'";';
950: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
951: &Apache::run::run($expression,$safeeval);
952: &Apache::lonxml::debug("Got $status");
1.324 albertel 953:
1.159 albertel 954: if (( $status eq 'CLOSED' ) ||
955: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 956: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 957: ( $status eq 'BANNED') ||
1.216 albertel 958: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 959: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 960: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 961: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
962: $style);
1.159 albertel 963: if ( $target eq "web" ) {
1.343 albertel 964: my $msg;
1.159 albertel 965: if ($status eq 'UNAVAILABLE') {
1.245 albertel 966: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 967: } elsif ($status eq 'NOT_IN_A_SLOT') {
968: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 969: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 970: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 971: }
1.216 albertel 972: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 973: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 974: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 975: $msg.=&checkout_msg();
1.252 albertel 976: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 977: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 978: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 979: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 980: }
981: $result.=$msg.'<br />';
982: } elsif ($target eq 'tex') {
1.332 albertel 983: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
984: : '\begin{minipage}{\textwidth}';
1.443 foxr 985: $result.='\noindent \vskip 1 mm '.
1.332 albertel 986: $startminipage.'\vskip 0 mm';
1.159 albertel 987: if ($status eq 'UNAVAILABLE') {
1.211 albertel 988: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 989: } else {
1.211 albertel 990: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 991: }
992: }
1.324 albertel 993: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 994: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
995: $style);
1.324 albertel 996: if ($target eq 'web') {
1.375 albertel 997: $result .=
998: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 999: } elsif ($target eq 'grade') {
1000: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1001: 'problem');
1002: }
1.159 albertel 1003: } elsif ($target eq 'web') {
1.360 albertel 1004: if ($status eq 'CAN_ANSWER'
1005: && $slot_name ne ''
1006: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1007: # unproctored slot access, self checkin
1008: &Apache::bridgetask::check_in('problem',undef,undef,
1009: $slot_name);
1010: }
1.368 albertel 1011: $result.="\n $form_tag_start \t".
1.227 albertel 1012: '<input type="hidden" name="submitted" value="yes" />';
1013: # create a page header and exit
1.284 albertel 1014: if ($env{'request.state'} eq "construct") {
1015: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1016: if ($Apache::lonhomework::type eq 'practice') {
1017: $result.= '<input type="submit" name="resetdata" '.
1018: 'value="'.&mt('New Problem Variation').'" />'.
1019: &practice_problem_header().'<hr />';
1020: }
1.227 albertel 1021: }
1022: # if we are viewing someone else preserve that info
1.284 albertel 1023: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1024: foreach my $field ('symb','courseid','domain','username') {
1025: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1026: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1027: }
1028: }
1029: } elsif ($target eq 'tex') {
1.319 foxr 1030: $result .= 'INSERTTEXFRONTMATTERHERE';
1031:
1.99 sakharuk 1032: }
1.159 albertel 1033: } elsif ($target eq 'edit') {
1.343 albertel 1034: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1035: $Apache::lonxml::warnings_error_header=
1036: &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 1037: my $temp=&Apache::edit::insertlist($target,$token);
1038: $result.=$temp;
1039: } elsif ($target eq 'modified') {
1040: $result=$token->[4];
1041: } else {
1042: # page_start returned a starting result, delete it if we don't need it
1043: $result = '';
1.99 sakharuk 1044: }
1.159 albertel 1045: return $result;
1.9 albertel 1046: }
1047:
1048: sub end_problem {
1.159 albertel 1049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1050: my $result;
1.310 foxr 1051:
1.321 albertel 1052: if (!$Apache::lonxml::metamode) {
1053: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1054: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1055: }
1.319 foxr 1056:
1057: if ($target eq 'tex') {
1.321 albertel 1058: # Figure out the front matter and replace the
1059: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1060: # this in end_problem because whether or not we display due
1061: # dates depends on whether due dates have already been
1062: # displayed in the problem parts.
1063:
1.319 foxr 1064: my $frontmatter = '';
1065: my $startminipage = '';
1066: if (not $env{'form.problem_split'}=~/yes/) {
1067: $startminipage = '\begin{minipage}{\textwidth}';
1068: }
1069: my $id = $Apache::inputtags::part;
1070: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1071: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1072: my @packages = split /,/,$packages;
1073: my $allow_print_points = 0;
1074: foreach my $partial_key (@packages) {
1075: if ($partial_key=~m/^part_0$/) {
1076: $allow_print_points=1;
1077: }
1078: }
1079: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1080: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1081: if (lc($env{'course.'.$env{'request.course.id'}.
1082: '.disableexampointprint'}) eq 'yes') {
1083: $allow_print_points=0;
1084: }
1085: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1086: 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 1087: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1088: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1089:
1090: # Figure out what the due date is and if we need to print
1091: # it in the problem header. We have been logging the
1092: # last due date written to file.
1093:
1094: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1095: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1096: my $duedate_text = &mt('Due date: [_1]'
1097: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1098: my $temp_file;
1099: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1100:
1101: # Figure out what the last printed due date is or set it
1102: # to the epoch if no duedates have been printed.
1103:
1104: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1105: if (-e $filename) {
1106: $temp_file = Apache::File->new($filename);
1107: my @due_file = <$temp_file>;
1108: $due_file_content = $due_file[$#due_file];
1109: chomp $due_file_content;
1110: }
1111:
1112: # We display the due date iff it is not the same as the last
1113: # duedate in problem header ($due_file_content), and
1114: # none of our parts displayed a duedate.
1115: #
1116: my $parts_with_displayduedate;
1117: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1118: $parts_with_displayduedate =
1119: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1120: } else {
1121: $parts_with_displayduedate = 0;
1122: }
1123: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1124: $temp_file = Apache::File->new('>'.$filename);
1125: print $temp_file "$duetime\n";
1126: if (not $env{'request.symb'} =~ m/\.page_/) {
1127: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1128: $frontmatter .= $begin_doc.
1.448 bisitz 1129: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1130: } else {
1131: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1132: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1133: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1134: }
1.319 foxr 1135: }
1136: } else {
1.448 bisitz 1137: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1138: }
1139: } else {
1140: if (not $env{'request.symb'} =~ m/\.page_/) {
1141: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1142: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1143: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1144: }
1.319 foxr 1145: } else {
1.381 albertel 1146: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1147: }
1148: }
1149: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1150: }
1151:
1.159 albertel 1152: my $status=$Apache::inputtags::status['-1'];
1153: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1154: $target eq 'tex') {
1.249 albertel 1155: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1156: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1157: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1158: &Apache::inputtags::grade;
1.324 albertel 1159: } elsif ($status eq 'NEEDS_CHECKIN') {
1160: # no need to grade, and don't want to hide data
1.249 albertel 1161: } else {
1162: # move any submission data to .hidden
1163: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1164: }
1.159 albertel 1165: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1166: $Apache::inputtags::part eq '0' &&
1.252 albertel 1167: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1168: # if part is zero, no <part>s existed, so we need show the current
1169: # grading status
1170: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1171: $result.= $gradestatus;
1172: }
1173: if (
1.284 albertel 1174: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1175: ($target eq 'answer') || ($target eq 'tex')
1176: ) {
1.227 albertel 1177: if ($target ne 'tex' &&
1.284 albertel 1178: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1179: $result.="</form>";
1.348 albertel 1180: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1181: }
1182: if ($target eq 'web') {
1.346 albertel 1183: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1184: } elsif ($target eq 'tex') {
1.178 sakharuk 1185: my $endminipage = '';
1.284 albertel 1186: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1187: $endminipage = '\end{minipage}';
1188: }
1.284 albertel 1189: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1190: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1191: } else {
1.262 sakharuk 1192: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1193: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1194: $result .= $endminipage.'\end{document} ';
1195: } else {
1.382 albertel 1196: $result .= $endminipage;
1.262 sakharuk 1197: }
1.159 albertel 1198: }
1199: }
1200: }
1201: if ($target eq 'grade') {
1202: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1203: &finalize_storage();
1204: }
1.284 albertel 1205: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1206: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1207: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1208: # normally we get it from above, but in CSTR
1.172 albertel 1209: # we always show answer mode too.
1.159 albertel 1210: }
1211: } elsif ($target eq 'meta') {
1212: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1213: @Apache::inputtags::response=();
1.159 albertel 1214: $result=&Apache::response::mandatory_part_meta;
1215: }
1.215 albertel 1216: $result.=&Apache::response::meta_part_order();
1.258 albertel 1217: $result.=&Apache::response::meta_response_order();
1.159 albertel 1218: } elsif ($target eq 'edit') {
1219: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1220: $result .= &problem_edit_footer();
1.320 albertel 1221: } elsif ($target eq 'modified') {
1222: $result .= $token->[2];
1.159 albertel 1223: }
1.155 albertel 1224:
1.284 albertel 1225: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1226: &Apache::inputtags::check_for_duplicate_ids();
1227: }
1.204 albertel 1228:
1229: &reset_problem_globals('problem');
1.159 albertel 1230:
1231: return $result;
1.48 albertel 1232: }
1233:
1.108 albertel 1234:
1.48 albertel 1235: sub start_library {
1.159 albertel 1236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1237: my ($result,$form_tag_start);
1.371 albertel 1238: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1239: &init_problem_globals('library');
1240: $Apache::lonhomework::type='problem';
1241: }
1.159 albertel 1242: if ($target eq 'edit') {
1.343 albertel 1243: ($result,$form_tag_start)=
1244: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1245: 'Edit');
1246: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1247: my $temp=&Apache::edit::insertlist($target,$token);
1248: $result.=$temp;
1249: } elsif ($target eq 'modified') {
1250: $result=$token->[4];
1.340 albertel 1251: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1252: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1253: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1254: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1255: ($result,$form_tag_start)=
1256: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1257: $name);
1.159 albertel 1258: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1259: $result.=" \n $form_tag_start".
1.159 albertel 1260: '<input type="hidden" name="submitted" value="yes" />';
1261: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1262: if ($Apache::lonhomework::type eq 'practice') {
1263: $result.= '<input type="submit" name="resetdata" '.
1264: 'value="'.&mt('New Problem Variation').'" />'.
1265: &practice_problem_header().'<hr />';
1266: }
1.159 albertel 1267: }
1268: return $result;
1.48 albertel 1269: }
1270:
1271: sub end_library {
1.159 albertel 1272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1273: my $result='';
1274: if ($target eq 'edit') {
1275: $result=&problem_edit_footer();
1.371 albertel 1276: } elsif ($target eq 'web'
1277: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1278: && $env{'request.state'} eq "construct") {
1.349 albertel 1279: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1280: }
1.371 albertel 1281: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1282: &reset_problem_globals('library');
1283: }
1.159 albertel 1284: return $result;
1.197 www 1285: }
1286:
1287: sub start_definetag {
1.326 albertel 1288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1289:
1290: my $result;
1291:
1292: my $name = $token->[2]->{'name'};
1.326 albertel 1293: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1294: if ($target eq 'web') {
1295: if ($name=~/^\//) {
1296: $result=
1297: '<br /><table class="LC_sty_end"><tr><th>'.
1298: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1299: } else {
1300: $result=
1301: '<br /><table class="LC_sty_begin"><tr><th>'.
1302: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1303: }
1304: $skip = &HTML::Entities::encode($skip, '<>&"');
1305: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1306: }
1307: return $result;
1308: }
1309:
1310: sub end_definetag {
1311: return '';
1.1 albertel 1312: }
1313:
1314: sub start_block {
1.201 albertel 1315: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1316:
1317: my $result;
1.1 albertel 1318:
1.339 albertel 1319: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1320: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1321: my $code = $token->[2]->{'condition'};
1.385 albertel 1322: if (defined($code) && $code ne '') {
1.137 albertel 1323: if (!$Apache::lonxml::default_homework_loaded) {
1324: &Apache::lonxml::default_homework_load($safeeval);
1325: }
1.131 albertel 1326: $result = &Apache::run::run($code,$safeeval);
1327: &Apache::lonxml::debug("block :$code: returned :$result:");
1328: } else {
1329: $result='1';
1330: }
1331: if ( ! $result ) {
1.201 albertel 1332: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1333: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1334: }
1335: $result='';
1336: } elsif ($target eq 'edit') {
1337: $result .=&Apache::edit::tag_start($target,$token);
1338: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1339: $token,40);
1340: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1341: } elsif ($target eq 'modified') {
1342: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1343: $safeeval,'condition');
1344: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1345: }
1.131 albertel 1346: return $result;
1.1 albertel 1347: }
1348:
1349: sub end_block {
1.167 www 1350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1351: my $result;
1352: if ($target eq "edit") {
1353: $result.= &Apache::edit::tag_end($target,$token,'');
1354: }
1355: return $result;
1356: }
1357:
1358: sub start_languageblock {
1.201 albertel 1359: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1360:
1361: my $result;
1362:
1.339 albertel 1363: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1364: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1365: my $include = $token->[2]->{'include'};
1366: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1367: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1368: # This should not even happen, since we should at least have the server language
1.398 www 1369: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1370: # Now loop over all languages in order of preference
1371: foreach my $preferred_language (@preferred_languages) {
1.394 www 1372: # If the languageblock has no arguments, show the contents
1.399 www 1373: $result=1;
1374: my $found=0;
1.394 www 1375: # Do we have an include argument?
1.398 www 1376: if ($include) {
1.394 www 1377: # If include is specified, by default, don't render the block
1.399 www 1378: $result=0;
1.398 www 1379: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1380: # ... but if my preferred language is included, render it
1.398 www 1381: if ($included_language eq $preferred_language) {
1.399 www 1382: $result=1;
1383: $found=1;
1.398 www 1384: }
1385: }
1386: }
1.394 www 1387: # Do we have an exclude argument?
1.398 www 1388: if ($exclude) {
1.399 www 1389: $result=1;
1.398 www 1390: foreach my $excluded_language (split(/\,/,$exclude)) {
1391: if ($excluded_language eq $preferred_language) {
1.399 www 1392: $result=0;
1393: $found=1;
1.398 www 1394: }
1395: }
1396: }
1.399 www 1397: if ($found) { last; }
1.398 www 1398: }
1.201 albertel 1399: if ( ! $result ) {
1400: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1401: $style);
1402: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1403: }
1404: $result='';
1.167 www 1405: } elsif ($target eq 'edit') {
1406: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1407: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1408: $token,40);
1.211 albertel 1409: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1410: $token,40);
1411: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1412: } elsif ($target eq 'modified') {
1413: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1414: $safeeval,'include',
1415: 'exclude');
1.167 www 1416: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1417: }
1418: return $result;
1419: }
1420:
1421: sub end_languageblock {
1.170 www 1422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1423: my $result;
1.201 albertel 1424: if ($target eq "edit") {
1.170 www 1425: $result.= &Apache::edit::tag_end($target,$token,'');
1426: }
1427: return $result;
1428: }
1429:
1.397 albertel 1430: {
1431: my %available_texts;
1432: sub start_translated {
1433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1434: &Apache::lonxml::register('Apache::structuretags',('lang'));
1435: undef(%available_texts);
1436: }
1437:
1438: sub end_translated {
1439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1440: my $result;
1441: #show the translation on viewable targets
1442: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1443: # or non-viewable targets, if it's embedded in something that
1444: # wants the output
1445: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1446: && &Apache::lonxml::in_redirection() ) ) {
1447: my @possibilities = keys(%available_texts);
1448: my $which =
1449: &Apache::loncommon::languages(\@possibilities) || 'default';
1450: $result = $available_texts{$which};
1451: }
1452: undef(%available_texts);
1453: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1454: return $result;
1455: }
1456:
1457:
1458: sub start_lang {
1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1460: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1461: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1462: &Apache::lonxml::startredirection();
1463: }
1464: return '';
1465: }
1466:
1467: sub end_lang {
1468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1469: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1470: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1471: my $result = &Apache::lonxml::endredirection();
1472: my $which = &Apache::lonxml::get_param('which',$parstack,
1473: $safeeval);
1.431 raeburn 1474: if ($which=~/\w/) {
1475: $available_texts{$which} = $result;
1476: }
1477: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1478: $safeeval);
1479: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1480: if ($language=~/\w/) {
1481: $available_texts{$language} = $result;
1482: }
1.427 bisitz 1483: }
1484:
1.397 albertel 1485: }
1486: return '';
1487: }
1488: }
1489:
1.170 www 1490: sub start_instructorcomment {
1.201 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1492:
1493: my $result;
1494:
1.339 albertel 1495: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1496: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1! raeburn 1497: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1498: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1499: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1500: $parser,$style);
1.170 www 1501: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1502: }
1503: $result='';
1504: } elsif ($target eq 'edit') {
1505: $result .=&Apache::edit::tag_start($target,$token);
1506: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1507: }
1508: return $result;
1509: }
1510:
1511: sub end_instructorcomment {
1.159 albertel 1512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1513: my $result;
1514: if ($target eq "edit") {
1515: $result.= &Apache::edit::tag_end($target,$token,'');
1516: }
1517: return $result;
1.4 tsai 1518: }
1519:
1520: sub start_while {
1.326 albertel 1521: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1522:
1.160 albertel 1523: my $result;
1.339 albertel 1524: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1525: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1526: my $code = $token->[2]->{'condition'};
1.4 tsai 1527:
1.160 albertel 1528: push( @Apache::structuretags::whileconds, $code);
1529: if (!$Apache::lonxml::default_homework_loaded) {
1530: &Apache::lonxml::default_homework_load($safeeval);
1531: }
1532: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1533: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1534: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1535: push( @Apache::structuretags::whileline, $token->[5]);
1536: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1537: if ( $result ) {
1538: &Apache::lonxml::newparser($parser,\$bodytext);
1539: }
1540: } elsif ($target eq 'edit') {
1541: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1542: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1543: $token,40);
1544: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1545: } elsif ($target eq 'modified') {
1546: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1547: $safeeval,'condition');
1548: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1549: }
1.160 albertel 1550: return $result;
1.4 tsai 1551: }
1552:
1553: sub end_while {
1.159 albertel 1554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1555: my $result;
1556:
1.339 albertel 1557: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1558: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1559: my $code = pop(@Apache::structuretags::whileconds);
1560: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1561: my $line = pop(@Apache::structuretags::whileline);
1562: my $return = &Apache::run::run($code,$safeeval);
1563: my $starttime=time;
1564: my $error=0;
1565: while ($return) {
1566: if (time-$starttime >
1567: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1568: $return = 0; $error=1; next;
1.161 albertel 1569: }
1570: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1571: if ($target eq 'grade' || $target eq 'answer' ||
1572: $target eq 'analyze') {
1573: # grade/answer/analyze should produce no output but if we
1574: # are redirecting, the redirecter should know what to do
1575: # with the output
1576: if (!$Apache::lonxml::redirection) { undef($result); }
1577: }
1.161 albertel 1578: $return = &Apache::run::run($code,$safeeval);
1579: }
1580: if ($error) {
1.430 bisitz 1581: &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 1582: }
1583: } elsif ($target eq "edit") {
1584: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1585: }
1.160 albertel 1586: return $result;
1.1 albertel 1587: }
1.6 tsai 1588:
1.160 albertel 1589: # <randomlist show="1">
1.6 tsai 1590: # <tag1>..</tag1>
1591: # <tag2>..</tag2>
1592: # <tag3>..</tag3>
1.160 albertel 1593: # ...
1.6 tsai 1594: # </randomlist>
1595: sub start_randomlist {
1.326 albertel 1596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1597: my $result;
1.339 albertel 1598: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1599: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1600: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1601: my $b_parser= HTML::LCParser->new(\$body);
1602: $b_parser->xml_mode(1);
1603: $b_parser->marked_sections(1);
1.159 albertel 1604: my $b_tok;
1605: my @randomlist;
1606: my $list_item;
1607: while($b_tok = $b_parser->get_token() ) {
1608: if($b_tok->[0] eq 'S') { # start tag
1609: # get content of the tag until matching end tag
1610: # get all text upto the matching tag
1611: # and push the content into @randomlist
1612: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1613: $b_parser);
1614: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1615: push(@randomlist,$list_item);
1616: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1617: # $list_item</b>";
1618: }
1619: if($b_tok->[0] eq 'T') { # text
1620: # what to do with text in between tags?
1621: # print "<b>TEXT $b_tok->[1]</b><br />";
1622: }
1623: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1624: # print "<b>END-TAG $b_tok->[1]</b><br />";
1625: # }
1626: }
1.303 albertel 1627: if (@randomlist) {
1628: my @idx_arr = (0 .. $#randomlist);
1629: &Apache::structuretags::shuffle(\@idx_arr);
1630: my $bodytext = '';
1631: my $show=$#randomlist;
1632: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1633: $showarg--;
1634: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1635: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1636: my @currlist;
1637: my $part = $Apache::inputtags::part;
1638: if ($part ne '') {
1639: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1640: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1641: if (!(grep(/^\Q$part\E$/,@currlist))) {
1642: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1643: }
1644: } else {
1645: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1646: }
1647: }
1648: }
1.303 albertel 1649: for(0 .. $show) {
1650: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1651: }
1652: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1653: }
1654: } elsif ($target eq 'edit' ) {
1655: $result .=&Apache::edit::tag_start($target,$token);
1656: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1657: $token,5);
1658: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1659: } elsif ($target eq 'modified' ) {
1660: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1661: $safeeval,'show');
1662: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1663: }
1664: return $result;
1.7 tsai 1665: }
1666:
1667: sub shuffle {
1668: my $a=shift;
1669: my $i;
1.303 albertel 1670: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1671: &Apache::response::pushrandomnumber();
1.159 albertel 1672: for($i=@$a;--$i;) {
1673: my $j=int(&Math::Random::random_uniform() * ($i+1));
1674: next if $i == $j;
1675: @$a[$i,$j] = @$a[$j,$i];
1676: }
1.251 albertel 1677: &Apache::response::poprandomnumber();
1.7 tsai 1678: }
1.6 tsai 1679: }
1680:
1681: sub end_randomlist {
1.159 albertel 1682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1683: my $result;
1684: if ($target eq 'edit' ) {
1685: $result=&Apache::edit::tag_end($target,$token,
1686: 'End Randomly Parsed Block');
1687: }
1688: return $result;
1.6 tsai 1689: }
1690:
1.283 albertel 1691: sub ordered_show_check {
1692: my $last_part=$Apache::inputtags::partlist[-2];
1693: my $in_order=
1694: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1695: my $in_order_show=1;
1696: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1697: $in_order_show=&Apache::response::check_status($last_part);
1698: }
1699: return $in_order_show;
1700: }
1701:
1.11 albertel 1702: sub start_part {
1.326 albertel 1703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1704: if (!$Apache::lonxml::metamode) {
1705: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1706: # duedates.
1707: }
1.159 albertel 1708: my $result='';
1.386 albertel 1709: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1710: $Apache::inputtags::part=$id;
1.177 albertel 1711: push(@Apache::inputtags::partlist,$id);
1712: @Apache::inputtags::response=();
1.159 albertel 1713: @Apache::inputtags::previous=();
1714: @Apache::inputtags::previous_version=();
1.405 albertel 1715: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1716: &Apache::response::reset_params();
1717:
1.159 albertel 1718: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1719: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1720: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1721: my $in_order_show=&ordered_show_check();
1.214 albertel 1722: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1723: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1724: &Apache::run::run($expression,$safeeval);
1.159 albertel 1725:
1726: if ($target eq 'meta') {
1.224 www 1727: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1728: return &Apache::response::mandatory_part_meta.
1729: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1730: } elsif ($target eq 'web' || $target eq 'grade' ||
1731: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1732: if ($hidden || !$in_order_show) {
1.326 albertel 1733: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1734: } else {
1735: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1736: push (@Apache::inputtags::status,$status);
1737: my $expression='$external::datestatus="'.$status.'";';
1738: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1739: &Apache::run::run($expression,$safeeval);
1.284 albertel 1740: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1741: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1742: }
1.216 albertel 1743: if (( $status eq 'CLOSED' ) ||
1744: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1745: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1746: ( $status eq 'BANNED') ||
1747: ( $status eq 'UNAVAILABLE') ||
1748: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1749: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1750: $style);
1.159 albertel 1751: if ( $target eq "web" ) {
1.211 albertel 1752: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1753: } elsif ( $target eq 'tex' ) {
1.284 albertel 1754: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1755: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1756: } else {
1.211 albertel 1757: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1758: }
1.159 albertel 1759: }
1760: } else {
1761: if ($target eq 'tex') {
1.284 albertel 1762: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1763: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1764: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1765: } else {
1766: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1767: }
1.195 sakharuk 1768: }
1.159 albertel 1769: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1770: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1771: my @allkeys = split /,/,$allkeys;
1772: my $allow_print_points = 0;
1773: foreach my $partial_key (@allkeys) {
1.230 albertel 1774: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1775: if ($1 ne '0') {$allow_print_points=1;}
1776: }
1777: }
1.275 albertel 1778: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1779: if (defined($maxtries) && $maxtries < 0) {
1780: $allow_print_points=0;
1781: }
1.302 albertel 1782: if (lc($env{'course.'.$env{'request.course.id'}.
1783: '.disableexampointprint'}) eq 'yes') {
1784: $allow_print_points=0;
1785: }
1.463 foxr 1786: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1787: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1788:
1789: }
1.233 www 1790: } elsif ($target eq 'web') {
1.356 www 1791: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1792: }
1793: }
1794: }
1795: } elsif ($target eq 'edit') {
1796: $result.=&Apache::edit::tag_start($target,$token);
1797: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1798: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1799: ' '.
1800: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1801: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1802: } elsif ($target eq 'modified') {
1803: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1804: $safeeval,'id','display');
1.159 albertel 1805: if ($constructtag) {
1.225 albertel 1806: #limiting ids to only letters numbers, and space
1.224 www 1807: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1808: $result = &Apache::edit::rebuild_tag($token);
1809: }
1810: }
1811: return $result;
1.11 albertel 1812: }
1813:
1814: sub end_part {
1.159 albertel 1815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1816: &Apache::lonxml::debug("in end_part $target ");
1817: my $status=$Apache::inputtags::status['-1'];
1818: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1819: my $in_order_show=&ordered_show_check();
1.321 albertel 1820: my $result;
1821: if (!$Apache::lonxml::metamode) {
1822: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1823: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1824: }
1.312 albertel 1825: if ($target eq 'grade') {
1.249 albertel 1826: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1827: !$hidden && $in_order_show) {
1.311 foxr 1828: $result.=&Apache::inputtags::grade;
1.249 albertel 1829: } else {
1830: # move any submission data to .hidden
1831: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1832: }
1.283 albertel 1833: } elsif (($target eq 'web' || $target eq 'tex') &&
1834: !$hidden && $in_order_show) {
1.159 albertel 1835: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1836: $target);
1.212 albertel 1837: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1838: $gradestatus='';
1839: }
1.311 foxr 1840: $result.=$gradestatus;
1.265 sakharuk 1841: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1842: } elsif ($target eq 'edit') {
1.311 foxr 1843: $result.=&Apache::edit::end_table();
1.322 albertel 1844: } elsif ($target eq 'modified') {
1845: $result .= $token->[2];
1.159 albertel 1846: }
1847: pop @Apache::inputtags::status;
1848: $Apache::inputtags::part='';
1.295 albertel 1849: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1850: return $result;
1.11 albertel 1851: }
1.1 albertel 1852:
1.25 albertel 1853: sub start_preduedate {
1.326 albertel 1854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1855: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1856: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1857: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1858: if (!$Apache::lonhomework::scantronmode &&
1859: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1860: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1861: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1862: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1863: }
1.24 albertel 1864: }
1.159 albertel 1865: return '';
1.24 albertel 1866: }
1867:
1.25 albertel 1868: sub end_preduedate {
1.159 albertel 1869: return '';
1.24 albertel 1870: }
1871:
1.369 foxr 1872: # In all the modes where <postanswerdate> text is
1873: # displayable, all we do is eat up the text between the start/stop
1874: # tags if the conditions are not right to display it.
1.25 albertel 1875: sub start_postanswerdate {
1.326 albertel 1876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1877: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1878: &Apache::lonnet::allowed('pav',
1879: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1880: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1881: $target eq 'tex' ) {
1.300 albertel 1882: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1883: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1884: (($target eq 'tex') && !$pav)) {
1.326 albertel 1885: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1886: }
1887: }
1888: return '';
1.24 albertel 1889: }
1890:
1.25 albertel 1891: sub end_postanswerdate {
1.159 albertel 1892: return '';
1.24 albertel 1893: }
1894:
1.25 albertel 1895: sub start_notsolved {
1.326 albertel 1896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1897: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1898: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1899: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1900: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1901: if ($gradestatus =~ /^correct/ &&
1902: &Apache::response::show_answer()) {
1.159 albertel 1903: &Apache::lonxml::debug("skipping");
1.326 albertel 1904: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1905: }
1.24 albertel 1906: }
1.159 albertel 1907: return '';
1.24 albertel 1908: }
1909:
1.25 albertel 1910: sub end_notsolved {
1.159 albertel 1911: return '';
1.24 albertel 1912: }
1913:
1914: sub start_solved {
1.326 albertel 1915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1916: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1917: $target eq 'tex') {
1918: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1919: if ($gradestatus !~ /^correct/ ||
1920: !&Apache::response::show_answer()) {
1.326 albertel 1921: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1922: }
1.24 albertel 1923: }
1.159 albertel 1924: return '';
1.24 albertel 1925: }
1926:
1927: sub end_solved {
1.248 albertel 1928: return '';
1929: }
1930:
1931: sub start_problemtype {
1.326 albertel 1932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1933: my $result;
1.339 albertel 1934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1935: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1936: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1937: if (!defined($mode)) { $mode='show'; }
1938: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1939: my $found=0;
1940: foreach my $type (split(',',$for)) {
1941: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1942: }
1943: if ($mode eq 'show' && !$found) {
1.326 albertel 1944: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1945: }
1946: if ($mode eq 'hide' && $found) {
1.326 albertel 1947: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1948: }
1949: } elsif ($target eq 'edit') {
1950: $result .=&Apache::edit::tag_start($target,$token);
1951: $result.=&Apache::edit::select_arg('Mode:','mode',
1952: [['show','Show'],
1953: ['hide','Hide']]
1954: ,$token);
1955: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1956: [ ['exam','Exam/Quiz Problem'],
1957: ['survey','Survey'],
1.465 raeburn 1958: ['surveycred','Survey (with credit)'],
1959: ['anonsurvey','Anonymous Survey'],
1960: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 1961: ['problem','Homework Problem'],
1962: ['practice','Practice Problem'] ]
1.248 albertel 1963: ,$token);
1964: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1965: } elsif ($target eq 'modified') {
1966: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1967: $safeeval,'mode','for');
1968: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1969: }
1970: return $result;
1971: }
1972:
1973: sub end_problemtype {
1.159 albertel 1974: return '';
1.24 albertel 1975: }
1.34 albertel 1976:
1977: sub start_startouttext {
1.159 albertel 1978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1979: my @result=(''.'');
1980: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1981:
1982: my $nesting =
1983: &Apache::lonxml::set_state('outtext',
1984: &Apache::lonxml::get_state('outtext')+1);
1985: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1986: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1987: }
1.159 albertel 1988: return (@result);
1.34 albertel 1989: }
1.159 albertel 1990:
1.34 albertel 1991: sub end_startouttext {
1.326 albertel 1992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1993: my $result='';
1994: my $text='';
1995: if ($target eq 'edit') {
1.424 foxr 1996: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1997: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1998: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1999: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2000: .&Apache::edit::deletelist($target,$token)
2001: .'</span></td>';
1.425 raeburn 2002: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 2003: $result .= '<td align="left">'
2004: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2005: .'</td>'
2006: .'<td>'
2007: .&Apache::edit::insertlist($target,$token)
2008: .'</td>';
2009: }
1.425 raeburn 2010: $result.='<td align="right" valign="top">' .
1.434 foxr 2011: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2012: &Apache::edit::end_row().
1.362 albertel 2013: &Apache::edit::start_spanning_row()."\n".
1.255 www 2014: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2015: }
2016: if ($target eq 'modified') {
1.219 albertel 2017: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2018: }
2019: if ($target eq 'tex') {
2020: $result .= '\noindent ';
2021: }
2022: return $result;
1.34 albertel 2023: }
1.159 albertel 2024:
1.34 albertel 2025: sub start_endouttext {
1.159 albertel 2026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2027: my $result='';
2028: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2029: if ($target eq "modified") {
2030: $result='<endouttext />'.
1.377 albertel 2031: &Apache::edit::handle_insertafter('startouttext');
2032: }
1.404 albertel 2033:
2034: my $nesting =
2035: &Apache::lonxml::set_state('outtext',
2036: &Apache::lonxml::get_state('outtext')-1);
2037: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2038: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2039: &Apache::lonxml::set_state('outtext', 0);
2040: }
1.159 albertel 2041: return $result;
1.34 albertel 2042: }
1.159 albertel 2043:
1.34 albertel 2044: sub end_endouttext {
1.159 albertel 2045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2046: my @result=('','');
2047: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2048: return (@result);
1.34 albertel 2049: }
1.159 albertel 2050:
1.45 albertel 2051: sub delete_startouttext {
1.326 albertel 2052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2053: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2054: my $text=$$parser['-1']->get_text("/endouttext");
2055: my $ntoken=$$parser['-1']->get_token();
2056: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2057: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2058: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2059: # they did the last time round
2060: &Apache::lonxml::increasedepth($ntoken);
2061: &Apache::lonxml::decreasedepth($ntoken);
2062: return 1;
1.193 www 2063: }
2064:
2065: sub start_simpleeditbutton {
2066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2067: my $result='';
1.284 albertel 2068: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2069: ($target eq 'web') &&
1.330 albertel 2070: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2071: my $url=$env{'request.noversionuri'};
1.193 www 2072: $url=~s/\?.*$//;
1.367 albertel 2073: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2074: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2075: # $result='<p class="LC_warning">'
2076: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2077: # .&Apache::loncommon::help_open_topic('Caching')
2078: # .'</p>';
1.451 bisitz 2079: $result.=&Apache::lonhtmlcommon::start_funclist()
2080: .&Apache::lonhtmlcommon::add_item_funclist(
2081: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2082: .&mt('Edit').'</a>')
2083: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2084:
1.193 www 2085: }
2086: return $result;
2087: }
2088:
2089: sub end_simpleeditbutton {
2090: return '';
1.45 albertel 2091: }
1.34 albertel 2092:
1.428 raeburn 2093: sub practice_problem_header {
2094: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2095: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2096: '</span>';
2097: }
2098:
1.1 albertel 2099: 1;
2100: __END__
1.435 jms 2101:
2102: =pod
2103:
2104: =back
2105:
2106: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>