Annotation of loncom/homework/structuretags.pm, revision 1.465.2.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.4! raeburn 4: # $Id: structuretags.pm,v 1.465.2.3 2010/08/16 18:09:28 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 {
1.465.2.2 raeburn 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','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:
1.465.2.4! raeburn 180: $extra_head .= &homework_js().
! 181: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
! 182: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
! 183: my %textarea_args = (
! 184: dragmath => 'math',
! 185: );
! 186: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 187: }
188:
1.344 albertel 189: my %body_args;
190: if (defined($found{'html'})) {
191: $body_args{'skip_phases'}{'head'}=1;
192: } else {
1.343 albertel 193:
1.345 albertel 194: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 195:
1.379 albertel 196: $extra_head .= &Apache::londefdef::generate_css_links();
197:
1.384 albertel 198: if ($env{'request.state'} eq 'construct') {
1.343 albertel 199: $extra_head.=&Apache::edit::js_change_detection().
200: "<script type=\"text/javascript\">\n".
201: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
202: &Apache::loncommon::browser_and_searcher_javascript().
203: "\n</script>\n";
204: }
1.159 albertel 205: }
1.343 albertel 206:
1.446 bisitz 207: my $pageheader = '';
1.344 albertel 208: if (defined($found{'body'})) {
209: $body_args{'skip_phases'}{'body'}=1;
210: } elsif (!defined($found{'body'})
211: && $env{'request.state'} eq 'construct') {
1.343 albertel 212: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 213: if ($env{'environment.remote'} ne 'off') {
214: $body_args{'only_body'} = 1;
215: }
1.450 bisitz 216: # Breadcrumbs for Construction Space
217: &Apache::lonhtmlcommon::clear_breadcrumbs();
218: &Apache::lonhtmlcommon::add_breadcrumb({
219: 'text' => 'Construction Space',
220: 'href' => &Apache::loncommon::authorspace(),
221: });
1.460 droeschl 222: # breadcrumbs (and tools) will be created
223: # in start_page->bodytag->innerregister
224:
1.450 bisitz 225: # FIXME Where are we?
226: # &Apache::lonhtmlcommon::add_breadcrumb({
227: # 'text' => 'Problem Editing', # 'Problem Testing'
228: # 'href' => '',
229: # });
1.460 droeschl 230: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 231: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 232: }
1.272 albertel 233: } elsif (!defined($found{'body'})) {
1.343 albertel 234: my %add_entries;
1.159 albertel 235: my $background=&Apache::lonxml::get_param('background',$parstack,
236: $safeeval);
1.343 albertel 237: if ($background ne '' ) {
238: $add_entries{'background'} = $background;
239: }
1.344 albertel 240:
1.290 albertel 241: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
242: $safeeval);
1.446 bisitz 243: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 244:
1.446 bisitz 245: $body_args{'bgcolor'} = $bgcolor;
246: # $body_args{'no_title'} = 1;
247: $body_args{'force_register'} = 1;
248: $body_args{'add_entries'} = \%add_entries;
249: if ($env{'environment.remote'} eq 'off'
250: && $env{'request.state'} eq 'construct') {
251: $body_args{'only_body'} = 1;
252: }
1.344 albertel 253: }
1.365 albertel 254: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 255: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
256: \%body_args);
1.446 bisitz 257: $page_start .= $pageheader;
1.462 raeburn 258: if (!defined($found{'body'})
259: && $env{'request.state'} ne 'construct'
260: && ($target eq 'web' || $target eq 'webgrade')) {
261:
262: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
263: if ($symb eq '' && !$publicuser) {
264: $page_start .= '<p class="LC_info">'
265: .&mt('Browsing resource, all submissions are temporary.')
266: .'</p>';
1.457 bisitz 267: }
1.344 albertel 268: }
269:
1.409 albertel 270: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 271: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 272: }
1.344 albertel 273:
1.159 albertel 274: my $form_tag_start;
275: if (!defined($found{'form'})) {
1.337 albertel 276: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 277: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 278: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 279: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 280: $form_tag_start.=$uri.'" ';
281: if ($target eq 'edit') {
282: $form_tag_start.=&Apache::edit::form_change_detection();
283: }
1.368 albertel 284: $form_tag_start.='>'."\n";
1.355 albertel 285:
286: my $symb=&Apache::lonnet::symbread();
287: if ($symb =~ /\S/) {
288: $symb=
289: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
290: $form_tag_start.=
1.368 albertel 291: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 292: }
1.159 albertel 293: }
1.343 albertel 294: return ($page_start,$form_tag_start);
1.105 albertel 295: }
296:
1.141 matthew 297: #use Time::HiRes();
1.105 albertel 298: sub get_resource_name {
1.159 albertel 299: my ($parstack,$safeeval)=@_;
1.388 foxr 300: my $name;
1.204 albertel 301: if (defined($Apache::lonhomework::name)) {
1.388 foxr 302: $name = $Apache::lonhomework::name;
303: } else {
304: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 305: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 306: if ($name eq '') {
307: $name=&Apache::lonnet::EXT('resource.title');
308: if ($name eq 'con_lost') { $name = ''; }
309: }
310: if ($name!~/\S+/) {
311: $name=$env{'request.uri'};
312: $name=~s-.*/([^/]+)$-$1-;
313: }
314: # The name has had html tags escaped:
315:
316: $name=~s/</</gs;
317: $name=~s/>/>/gs;
318:
319: $Apache::lonhomework::name=$name;
1.204 albertel 320: }
1.159 albertel 321: return $name;
1.105 albertel 322: }
323:
324: sub setup_rndseed {
1.159 albertel 325: my ($safeeval)=@_;
326: my $rndseed;
1.367 albertel 327: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 328: if ($env{'request.state'} eq "construct"
329: || $symb eq ''
330: || $Apache::lonhomework::type eq 'practice'
331: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 332: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 333: ['rndseed']);
1.284 albertel 334: $rndseed=$env{'form.rndseed'};
1.159 albertel 335: if (!$rndseed) {
1.162 albertel 336: $rndseed=$Apache::lonhomework::history{'rndseed'};
337: if (!$rndseed) {
338: $rndseed=time;
339: }
1.284 albertel 340: $env{'form.rndseed'}=$rndseed;
1.162 albertel 341: }
1.374 albertel 342: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
343: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 344: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 345: srand(time);
346: $rndseed=int(rand(2100000000));
1.284 albertel 347: $env{'form.rndseed'}=$rndseed;
348: delete($env{'form.resetdata'});
349: delete($env{'form.newrandomization'});
1.159 albertel 350: }
1.187 albertel 351: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 352: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 353: }
1.247 albertel 354: if ($Apache::lonhomework::history{'resource.CODE'}) {
355: $rndseed=&Apache::lonnet::rndseed();
356: }
1.221 albertel 357: if ($safeeval) {
358: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 359: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 360: }
1.159 albertel 361: }
362: return $rndseed;
1.105 albertel 363: }
364:
1.268 albertel 365: sub remember_problem_state {
366: return '
1.284 albertel 367: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
368: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
369: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 370: }
371:
1.423 www 372: sub problem_edit_buttons {
373: return '
1.408 albertel 374: <div class="LC_edit_problem_discards">
1.416 raeburn 375: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 376: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 377: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 378: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 379: </div>
380: <div class="LC_edit_problem_saves">
1.416 raeburn 381: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
382: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 383: </div>';
384: }
385:
386: sub problem_edit_header {
387: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
388: &Apache::structuretags::remember_problem_state().'
389: <div class="LC_edit_problem_header">
390: <div class="LC_edit_problem_header_title">
391: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
392: </div>'.
393: &problem_edit_buttons().'
1.459 bisitz 394: <hr style="clear:both;" />
1.409 albertel 395: '.&Apache::lonxml::message_location().'
1.408 albertel 396: </div>
397: '.
1.458 bisitz 398: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 399: }
400:
401: sub problem_edit_footer {
1.412 albertel 402: return '</td></tr></table><br />
403: <div class="LC_edit_problem_footer">
1.453 bisitz 404: <hr />'.
1.423 www 405: &problem_edit_buttons().'
1.459 bisitz 406: <hr style="clear:both;" />
1.412 albertel 407: </div>
408: '.
1.342 albertel 409: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 410: }
411:
1.235 albertel 412: sub option {
413: my ($value,$name) = @_;
414: my $result ="<option value='".$value."' ";
1.284 albertel 415: if ($env{'form.'.$name} eq $value) {
1.235 albertel 416: $result.=" selected='on' ";
417: }
418: $result.='>';
419: return $result;
420: }
421:
1.105 albertel 422: sub problem_web_to_edit_header {
1.159 albertel 423: my ($rndseed)=@_;
1.406 albertel 424: my $result .= '<div class="LC_edit_problem_header">';
425:
426: if (!$Apache::lonhomework::parsing_a_task) {
427: $result .=
428: '<div class="LC_edit_problem_header_title">'.
429: &mt('Problem Testing').
430: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
431: '</div>';
432: } else {
433: $result .=
434: '<div class="LC_edit_problem_header_title">'.
435: &mt('Task Testing').
436: '</div>';
437: }
438:
1.315 albertel 439: my $show_all_foils_text =
440: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 441: &mt('Show All Instances')
442: : &mt('Show All Foils');
1.315 albertel 443:
1.452 bisitz 444: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
445: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 446: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 447: $show_all.= ' /> '.$show_all_foils_text
448: .'</label></span>';
1.406 albertel 449:
450:
1.384 albertel 451:
1.406 albertel 452: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 453: if (!$Apache::lonhomework::parsing_a_task) {
454: $result.="
1.406 albertel 455: <div class='LC_edit_problem_header_row1'>
456: <span class=\"LC_nobreak\">
1.405 albertel 457: ".&mt("Problem Status:")."
1.235 albertel 458: <select name='problemstate'>
1.270 albertel 459: <option value=''></option>
1.235 albertel 460: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
461: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
462: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
463: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
464: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
465: </select>
1.406 albertel 466: </span>
467: <span class=\"LC_nobreak\">
1.405 albertel 468: ".&mt("Problem Type:")."
1.235 albertel 469: <select name='problemtype'>
1.270 albertel 470: <option value=''></option>
1.242 albertel 471: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 472: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 473: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 474: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
475: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
476: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 477: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 478: </select>
1.406 albertel 479: </span>
480: $show_all
481: </div>
482: <div class='LC_edit_problem_header_row2'>
483: <span class=\"LC_nobreak\">
1.405 albertel 484: ".&mt("Feedback Mode:")."
1.235 albertel 485: <select name='problemstatus'>
486: <option value=''></option>
1.242 albertel 487: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 488: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
489: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 490: </select>
1.406 albertel 491: </span>
492: ";
493:
1.376 albertel 494: } elsif ($Apache::lonhomework::parsing_a_task) {
495: $result.="
1.406 albertel 496: <div class='LC_edit_problem_header_row1'>
497: <span class=\"LC_nobreak\">
1.405 albertel 498: ".&mt("Problem Status:")."
1.376 albertel 499: <select name='problemstate'>
500: <option value=''></option>
501: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
502: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
503: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
504: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
505: </select>
1.406 albertel 506: </span>
507: $show_all
508: ";
509: }
510: $result.='
511: <span class="LC_nobreak">
512: '.&mt('Apply style file: ').'
513: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
514: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
515: </span>
1.422 www 516: </div>
517: <div class="LC_edit_problem_header_row1">'.
518: &Apache::lonxml::renderingoptions().'
1.406 albertel 519: </div>
520: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
521: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
522: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
523: </div>
1.453 bisitz 524: <hr />
1.406 albertel 525: <div class="LC_edit_problem_header_randomize_row">
526: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
527: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
528: <input type="text" name="rndseed" size="10" value="'.
529: $rndseed.'"
530: onchange="javascript:document.lonhomework.changerandseed.click()" />';
531:
532: if (!$Apache::lonhomework::parsing_a_task) {
533: my $numtoanalyze=$env{'form.numtoanalyze'};
534: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 535: $result .= '<span class="LC_nobreak">'.
536: &mt('[_1] for [_2] versions.',
1.416 raeburn 537: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 538: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
539: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 540: $numtoanalyze.'" size="5" />').
541: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
542: '</span>';
543:
1.313 albertel 544: }
1.406 albertel 545:
546: $result.='
547: </div>
1.453 bisitz 548: <hr />
1.447 bisitz 549: <div>';
1.416 raeburn 550: $result.='<input type="hidden" name="problemmode" value="view" />';
551: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
552: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
553: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
554: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 555: $result.='
556: </div>
1.453 bisitz 557: <hr />
1.409 albertel 558: '.&Apache::lonxml::message_location().'
1.406 albertel 559: </div>';
1.159 albertel 560: return $result;
1.48 albertel 561: }
562:
1.65 albertel 563: sub initialize_storage {
1.357 albertel 564: my ($given_symb) = @_;
1.353 albertel 565: undef(%Apache::lonhomework::results);
566: undef(%Apache::lonhomework::history);
1.357 albertel 567: my ($symb,$courseid,$domain,$name) =
1.367 albertel 568: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 569:
570: # anonymous users (CODEd exams) have no data
571: if ($name eq 'anonymous'
572: && !defined($domain)) {
573: return;
574: }
575:
1.333 albertel 576: if ($env{'request.state'} eq 'construct'
577: || $symb eq ''
578: || $Apache::lonhomework::type eq 'practice') {
579:
580: my $namespace = $symb || $env{'request.uri'};
581: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 582: ($env{'form.resetdata'} eq &mt('New Problem Variation')
583: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 584: $env{'form.newrandomization'} eq &mt('New Randomization')) {
585: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
586: &Apache::lonxml::debug("Attempt reset");
587: }
1.159 albertel 588: %Apache::lonhomework::history=
1.333 albertel 589: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 590: my ($temp)=keys %Apache::lonhomework::history ;
591: &Apache::lonxml::debug("Return message of $temp");
592: } else {
593: %Apache::lonhomework::history=
594: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
595: }
1.353 albertel 596:
1.159 albertel 597: #ignore error conditions
1.67 albertel 598: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 599: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 600: }
601:
1.435 jms 602: =pod
603:
604: =item finalize_storage()
605:
606: Stores away the result has to a student's environment
607: checks form.grade_ for specific values, other wises stores
608: to the running users environment
609: Will increment totals for attempts, students, and corrects
610: if running user has student role.
611:
612: =cut
613:
614:
1.65 albertel 615: sub finalize_storage {
1.357 albertel 616: my ($given_symb) = @_;
1.159 albertel 617: my $result;
1.289 albertel 618: if (%Apache::lonhomework::results) {
1.323 albertel 619: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
620: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 621: my ($symb,$courseid,$domain,$name) =
1.367 albertel 622: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 623: if ($env{'request.state'} eq 'construct'
624: || $symb eq ''
625: || $Apache::lonhomework::type eq 'practice') {
626: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 627: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 628: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 629: $namespace,'',$domain,$name);
1.159 albertel 630: &Apache::lonxml::debug('Construct Store return message:'.$result);
631: } else {
632: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
633: $symb,$courseid,$domain,$name);
634: &Apache::lonxml::debug('Store return message:'.$result);
1.465.2.3 raeburn 635: &store_aggregates($symb,$courseid);
1.159 albertel 636: }
1.323 albertel 637: } else {
638: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 639: }
1.159 albertel 640: return $result;
1.65 albertel 641: }
642:
1.435 jms 643: =pod
644:
645: item store_aggregates()
646:
647: Sends hash of values to be incremented in nohist_resourcetracker.db
648: for the course. Increments total number of attempts, unique students
649: and corrects for each part for an instance of a problem, as appropriate.
650:
651: =cut
652:
1.285 raeburn 653: sub store_aggregates {
654: my ($symb,$courseid) = @_;
1.465.2.3 raeburn 655: my (%aggregate,%anoncounter);
1.286 albertel 656: my @parts;
1.288 albertel 657: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
658: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 659: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 660: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 661: push(@parts, $1);
1.285 raeburn 662: }
663: }
1.286 albertel 664: foreach my $part (@parts) {
1.465.2.3 raeburn 665: if ($env{'request.role'} =~/^st/) {
666: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
667: eq 'APPROX_ANS' ||
668: $Apache::lonhomework::results{'resource.'.$part.'.award'}
669: eq 'EXACT_ANS') {
670: $aggregate{$symb."\0".$part."\0correct"} = 1;
671: }
672: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
673: $aggregate{$symb."\0".$part."\0users"} = 1;
674: } else {
675: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
676: if ($last_reset) {
677: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
678: $aggregate{$symb."\0".$part."\0users"} = 1;
679: }
680: }
681: }
682: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 683: }
1.465.2.3 raeburn 684: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
685: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred')) {
686: $anoncounter{$symb."\0".$part} = 1;
687: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
688: if ($needsrelease) {
689: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
690: if ($curr_required eq '') {
691: &Apache::lonnet::update_released_required($needsrelease);
692: } else {
693: my ($currmajor,$currminor) = split(/\./,$curr_required);
694: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
695: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
696: &Apache::lonnet::update_released_required($needsrelease);
697: }
1.292 raeburn 698: }
699: }
1.285 raeburn 700: }
701: }
1.292 raeburn 702: if (keys (%aggregate) > 0) {
1.289 albertel 703: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 704: $cdomain,$cname);
705: }
1.465.2.3 raeburn 706: if (keys(%anoncounter) > 0) {
707: &Apache::lonnet::cinc('nohist_anonsurveys',\%anoncounter,
708: $cdomain,$cname);
709: }
1.292 raeburn 710: }
1.289 albertel 711:
1.65 albertel 712: sub checkout_msg {
1.211 albertel 713: my %lt=&Apache::lonlocal::texthash(
714: 'resource'=>'The resource needs to be checked out',
715: '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.',
716: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
717: 'checkout'=>'Check out Exam for Viewing',
718: 'checkout?'=>'Check out Exam?');
1.352 albertel 719: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 720: return (<<ENDCHECKOUT);
1.211 albertel 721: <h2>$lt{'resource'}</h2>
722: <p>$lt{'id_expln'}</p>
1.449 bisitz 723: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 724: <form name="checkout" method="post" action="$uri">
1.91 albertel 725: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 726: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 727: </form>
728: ENDCHECKOUT
729: }
730:
1.252 albertel 731: sub firstaccess_msg {
1.253 albertel 732: my ($time,$symb)=@_;
1.414 albertel 733: my $result;
734: my @interval=&Apache::lonnet::EXT("resource.0.interval");
735: if ($interval[1] eq 'map') {
736: my ($map)=&Apache::lonnet::decode_symb($symb);
737: my $foldertitle=&Apache::lonnet::gettitle($map);
738:
739: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 740: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
741: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
742: ,$foldertitle,$time)."</h2>";
1.414 albertel 743: } elsif ($interval[1] eq 'course') {
744: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 745: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
746: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
747: ,$course,$time)."</h2>";
1.414 albertel 748: } else {
749: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 750: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
751: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
752: ,$title,$time)."</h2>";
1.414 albertel 753: }
1.352 albertel 754: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 755: my $buttontext = &mt('Show Resource');
756: my $timertext = &mt('Start Timer?');
1.414 albertel 757: $result .= (<<ENDCHECKOUT);
1.444 bisitz 758: <form name="markaccess" method="post" action="$uri">
1.252 albertel 759: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 760: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 761: </form>
762: ENDCHECKOUT
1.414 albertel 763: return $result;
1.252 albertel 764: }
765:
1.204 albertel 766: sub init_problem_globals {
767: my ($type)=@_;
768: #initialize globals
1.308 foxr 769: # For problems, we start out in part 0 (outside a <part> tag).
770: # and part 0 is used to describe the main body of the <problem>
771: #
1.204 albertel 772: if ($type eq 'problem') {
773: $Apache::inputtags::part='0';
774: @Apache::inputtags::partlist=('0');
1.405 albertel 775: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 776: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 777:
1.266 albertel 778: } elsif ($type eq 'library') {
1.204 albertel 779: $Apache::inputtags::part='';
780: @Apache::inputtags::partlist=();
1.405 albertel 781: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 782: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 783:
1.304 albertel 784: } elsif ($type eq 'Task') {
785: $Apache::inputtags::part='0';
786: @Apache::inputtags::partlist=('0');
1.405 albertel 787: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 788: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 789: }
790: @Apache::inputtags::responselist = ();
791: @Apache::inputtags::importlist = ();
792: @Apache::inputtags::previous=();
793: @Apache::inputtags::previous_version=();
794: $Apache::structuretags::printanswer='No';
795: @Apache::structuretags::whileconds=();
796: @Apache::structuretags::whilebody=();
797: @Apache::structuretags::whileline=();
798: $Apache::lonhomework::scantronmode=0;
799: undef($Apache::lonhomework::name);
1.358 albertel 800: undef($Apache::lonhomework::default_type);
801: undef($Apache::lonhomework::type);
1.204 albertel 802: }
803:
804: sub reset_problem_globals {
805: my ($type)=@_;
806: undef(%Apache::lonhomework::history);
807: undef(%Apache::lonhomework::results);
808: undef($Apache::inputtags::part);
1.208 albertel 809: #don't undef this, lonhomework.pm takes care of this, we use this to
810: #detect if we try to do 2 problems in one file
811: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 812: undef($Apache::lonhomework::name);
1.358 albertel 813: undef($Apache::lonhomework::default_type);
814: undef($Apache::lonhomework::type);
815: undef($Apache::lonhomework::scantronmode);
816: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 817: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 818: }
819:
1.241 albertel 820: sub set_problem_state {
1.240 albertel 821: my ($part)=@_;
1.284 albertel 822: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 823: $Apache::lonhomework::history{"resource.$part.solved"}=
824: 'correct_by_student';
825: }
826: }
827:
1.241 albertel 828: sub get_problem_status {
829: my ($part)=@_;
1.267 albertel 830: my $problem_status;
1.284 albertel 831: if ($env{'request.state'} eq 'construct' &&
832: defined($env{'form.problemstatus'})) {
833: $problem_status=$env{'form.problemstatus'};
1.267 albertel 834: } else {
835: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
836: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 837: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 838: }
839: return $problem_status;
840: }
841:
1.9 albertel 842: sub start_problem {
1.326 albertel 843: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 844:
1.311 foxr 845: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 846: if (!$Apache::lonxml::metamode) {
847: &Apache::lonxml::startredirection();
848: }
1.311 foxr 849:
1.308 foxr 850: # Problems don't nest and we don't allow more than one <problem> in
851: # a .problem file.
852: #
1.184 albertel 853: if ( $Apache::inputtags::part ne '' ||
854: $Apache::lonhomework::parsing_a_problem) {
855: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 856: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 857: return '';
858: }
1.184 albertel 859:
860: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 861: &init_problem_globals('problem');
1.166 albertel 862:
1.284 albertel 863: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 864: $Apache::lonhomework::scantronmode=1;
865: }
1.161 albertel 866:
1.159 albertel 867: if ($target ne 'analyze') {
1.415 raeburn 868: my $type = &Apache::lonnet::EXT('resource.0.type');
869: $Apache::lonhomework::type=$type;
1.284 albertel 870: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 871: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 872: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 873: }
1.332 albertel 874: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 875: }
1.164 albertel 876: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 877: my $uri=$env{'request.uri'};
1.159 albertel 878: if ($uri=~/\.(\w+)$/) {
879: $Apache::lonhomework::type=$1;
880: &Apache::lonxml::debug("Using type of $1");
881: } else {
882: $Apache::lonhomework::type='problem';
883: &Apache::lonxml::debug("Using default type, problem, :$uri:");
884: }
1.87 albertel 885: }
1.301 albertel 886: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 887:
1.363 albertel 888: &initialize_storage();
1.389 albertel 889: if ($target ne 'analyze'
890: && $env{'request.state'} eq 'construct') {
891: &set_problem_state('0');
892: }
893:
1.366 albertel 894: if ($target eq 'web') {
895: &Apache::lonxml::debug(" grading history ");
896: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
897: }
1.363 albertel 898:
1.159 albertel 899: #added vars to the scripting enviroment
1.213 albertel 900: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 901: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 902: &Apache::run::run($expression,$safeeval);
1.159 albertel 903: my $status;
904: my $accessmsg;
905:
1.343 albertel 906: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 907: my ($result,$form_tag_start);
1.354 albertel 908: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
909: || $target eq 'edit') {
1.350 albertel 910: ($result,$form_tag_start) =
911: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
912: $name);
913: }
914:
1.284 albertel 915: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 916:
917: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
918: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
919: $target eq 'tex') {
920: #handle exam checkout
921: if ($Apache::lonhomework::type eq 'exam') {
922: my $token=
923: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 924: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 925: $token=&Apache::lonxml::maketoken();
926: $Apache::lonhomework::history{"resource.0.outtoken"}=
927: $token;
928: }
1.343 albertel 929: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 930: }
1.284 albertel 931: if ($env{'form.markaccess'}) {
1.414 albertel 932: my @interval=&Apache::lonnet::EXT("resource.0.interval");
933: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 934: }
1.159 albertel 935: #handle rand seed in construction space
936: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 937: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 938: if ($env{'request.state'} ne "construct" &&
939: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 940: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 941: $rndseed.'" />'.
942: '<input type="submit" name="resetdata"
943: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 944: if (exists($env{'form.username'})) {
945: $form_tag_start.=
1.164 albertel 946: '<input type="hidden" name="username"
1.284 albertel 947: value="'.$env{'form.username'}.'" />';
1.334 albertel 948: }
1.462 raeburn 949: if ($env{'request.role.adv'}) {
950: $form_tag_start.= ' <label class="LC_nobreak">'
951: .'<input type="checkbox" name="showallfoils"';
952: if (defined($env{'form.showallfoils'})) {
953: $form_tag_start.=' checked="checked"';
954: }
955: $form_tag_start.= ' /> '
956: .&mt('Show All Foils')
957: .'</label>';
958: }
1.417 www 959: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 960: $form_tag_start.=&practice_problem_header();
1.417 www 961: }
1.462 raeburn 962: $form_tag_start.='<hr />';
1.162 albertel 963: }
1.324 albertel 964:
965: ($status,$accessmsg,my $slot_name,my $slot) =
966: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 967: push (@Apache::inputtags::status,$status);
1.324 albertel 968:
1.159 albertel 969: my $expression='$external::datestatus="'.$status.'";';
970: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
971: &Apache::run::run($expression,$safeeval);
972: &Apache::lonxml::debug("Got $status");
1.324 albertel 973:
1.159 albertel 974: if (( $status eq 'CLOSED' ) ||
975: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 976: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 977: ( $status eq 'BANNED') ||
1.216 albertel 978: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 979: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 980: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 981: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
982: $style);
1.159 albertel 983: if ( $target eq "web" ) {
1.343 albertel 984: my $msg;
1.159 albertel 985: if ($status eq 'UNAVAILABLE') {
1.245 albertel 986: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 987: } elsif ($status eq 'NOT_IN_A_SLOT') {
988: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 989: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 990: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 991: }
1.216 albertel 992: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 993: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 994: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 995: $msg.=&checkout_msg();
1.252 albertel 996: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 997: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 998: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 999: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1000: }
1001: $result.=$msg.'<br />';
1002: } elsif ($target eq 'tex') {
1.332 albertel 1003: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1004: : '\begin{minipage}{\textwidth}';
1.443 foxr 1005: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1006: $startminipage.'\vskip 0 mm';
1.159 albertel 1007: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1008: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1009: } else {
1.211 albertel 1010: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1011: }
1012: }
1.324 albertel 1013: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1014: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1015: $style);
1.324 albertel 1016: if ($target eq 'web') {
1.375 albertel 1017: $result .=
1018: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1019: } elsif ($target eq 'grade') {
1020: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1021: 'problem');
1022: }
1.159 albertel 1023: } elsif ($target eq 'web') {
1.360 albertel 1024: if ($status eq 'CAN_ANSWER'
1025: && $slot_name ne ''
1026: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1027: # unproctored slot access, self checkin
1028: &Apache::bridgetask::check_in('problem',undef,undef,
1029: $slot_name);
1030: }
1.368 albertel 1031: $result.="\n $form_tag_start \t".
1.227 albertel 1032: '<input type="hidden" name="submitted" value="yes" />';
1033: # create a page header and exit
1.284 albertel 1034: if ($env{'request.state'} eq "construct") {
1035: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1036: if ($Apache::lonhomework::type eq 'practice') {
1037: $result.= '<input type="submit" name="resetdata" '.
1038: 'value="'.&mt('New Problem Variation').'" />'.
1039: &practice_problem_header().'<hr />';
1040: }
1.227 albertel 1041: }
1042: # if we are viewing someone else preserve that info
1.284 albertel 1043: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1044: foreach my $field ('symb','courseid','domain','username') {
1045: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1046: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1047: }
1048: }
1049: } elsif ($target eq 'tex') {
1.319 foxr 1050: $result .= 'INSERTTEXFRONTMATTERHERE';
1051:
1.99 sakharuk 1052: }
1.159 albertel 1053: } elsif ($target eq 'edit') {
1.343 albertel 1054: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1055: $Apache::lonxml::warnings_error_header=
1056: &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 1057: my $temp=&Apache::edit::insertlist($target,$token);
1058: $result.=$temp;
1059: } elsif ($target eq 'modified') {
1060: $result=$token->[4];
1061: } else {
1062: # page_start returned a starting result, delete it if we don't need it
1063: $result = '';
1.99 sakharuk 1064: }
1.159 albertel 1065: return $result;
1.9 albertel 1066: }
1067:
1068: sub end_problem {
1.159 albertel 1069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1070: my $result;
1.310 foxr 1071:
1.321 albertel 1072: if (!$Apache::lonxml::metamode) {
1073: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1074: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1075: }
1.319 foxr 1076:
1077: if ($target eq 'tex') {
1.321 albertel 1078: # Figure out the front matter and replace the
1079: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1080: # this in end_problem because whether or not we display due
1081: # dates depends on whether due dates have already been
1082: # displayed in the problem parts.
1083:
1.319 foxr 1084: my $frontmatter = '';
1085: my $startminipage = '';
1086: if (not $env{'form.problem_split'}=~/yes/) {
1087: $startminipage = '\begin{minipage}{\textwidth}';
1088: }
1089: my $id = $Apache::inputtags::part;
1090: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1091: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1092: my @packages = split /,/,$packages;
1093: my $allow_print_points = 0;
1094: foreach my $partial_key (@packages) {
1095: if ($partial_key=~m/^part_0$/) {
1096: $allow_print_points=1;
1097: }
1098: }
1099: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1100: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1101: if (lc($env{'course.'.$env{'request.course.id'}.
1102: '.disableexampointprint'}) eq 'yes') {
1103: $allow_print_points=0;
1104: }
1105: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1106: 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 1107: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1108: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1109:
1110: # Figure out what the due date is and if we need to print
1111: # it in the problem header. We have been logging the
1112: # last due date written to file.
1113:
1114: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1115: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1116: my $duedate_text = &mt('Due date: [_1]'
1117: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1118: my $temp_file;
1119: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1120:
1121: # Figure out what the last printed due date is or set it
1122: # to the epoch if no duedates have been printed.
1123:
1124: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1125: if (-e $filename) {
1126: $temp_file = Apache::File->new($filename);
1127: my @due_file = <$temp_file>;
1128: $due_file_content = $due_file[$#due_file];
1129: chomp $due_file_content;
1130: }
1131:
1132: # We display the due date iff it is not the same as the last
1133: # duedate in problem header ($due_file_content), and
1134: # none of our parts displayed a duedate.
1135: #
1136: my $parts_with_displayduedate;
1137: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1138: $parts_with_displayduedate =
1139: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1140: } else {
1141: $parts_with_displayduedate = 0;
1142: }
1143: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1144: $temp_file = Apache::File->new('>'.$filename);
1145: print $temp_file "$duetime\n";
1146: if (not $env{'request.symb'} =~ m/\.page_/) {
1147: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1148: $frontmatter .= $begin_doc.
1.448 bisitz 1149: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1150: } else {
1151: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1152: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1153: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1154: }
1.319 foxr 1155: }
1156: } else {
1.448 bisitz 1157: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1158: }
1159: } else {
1160: if (not $env{'request.symb'} =~ m/\.page_/) {
1161: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1162: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1163: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1164: }
1.319 foxr 1165: } else {
1.381 albertel 1166: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1167: }
1168: }
1169: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1170: }
1171:
1.159 albertel 1172: my $status=$Apache::inputtags::status['-1'];
1173: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1174: $target eq 'tex') {
1.249 albertel 1175: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1176: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1177: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1178: &Apache::inputtags::grade;
1.324 albertel 1179: } elsif ($status eq 'NEEDS_CHECKIN') {
1180: # no need to grade, and don't want to hide data
1.249 albertel 1181: } else {
1182: # move any submission data to .hidden
1183: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1184: }
1.159 albertel 1185: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1186: $Apache::inputtags::part eq '0' &&
1.252 albertel 1187: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1188: # if part is zero, no <part>s existed, so we need show the current
1189: # grading status
1190: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1191: $result.= $gradestatus;
1192: }
1193: if (
1.284 albertel 1194: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1195: ($target eq 'answer') || ($target eq 'tex')
1196: ) {
1.227 albertel 1197: if ($target ne 'tex' &&
1.284 albertel 1198: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1199: $result.="</form>";
1.159 albertel 1200: }
1201: if ($target eq 'web') {
1.346 albertel 1202: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1203: } elsif ($target eq 'tex') {
1.178 sakharuk 1204: my $endminipage = '';
1.284 albertel 1205: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1206: $endminipage = '\end{minipage}';
1207: }
1.284 albertel 1208: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1209: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1210: } else {
1.262 sakharuk 1211: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1212: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1213: $result .= $endminipage.'\end{document} ';
1214: } else {
1.382 albertel 1215: $result .= $endminipage;
1.262 sakharuk 1216: }
1.159 albertel 1217: }
1218: }
1219: }
1220: if ($target eq 'grade') {
1221: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1222: &finalize_storage();
1223: }
1.284 albertel 1224: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1225: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1226: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1227: # normally we get it from above, but in CSTR
1.172 albertel 1228: # we always show answer mode too.
1.159 albertel 1229: }
1230: } elsif ($target eq 'meta') {
1231: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1232: @Apache::inputtags::response=();
1.159 albertel 1233: $result=&Apache::response::mandatory_part_meta;
1234: }
1.215 albertel 1235: $result.=&Apache::response::meta_part_order();
1.258 albertel 1236: $result.=&Apache::response::meta_response_order();
1.159 albertel 1237: } elsif ($target eq 'edit') {
1238: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1239: $result .= &problem_edit_footer();
1.320 albertel 1240: } elsif ($target eq 'modified') {
1241: $result .= $token->[2];
1.159 albertel 1242: }
1.155 albertel 1243:
1.284 albertel 1244: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1245: &Apache::inputtags::check_for_duplicate_ids();
1246: }
1.204 albertel 1247:
1248: &reset_problem_globals('problem');
1.159 albertel 1249:
1250: return $result;
1.48 albertel 1251: }
1252:
1.108 albertel 1253:
1.48 albertel 1254: sub start_library {
1.159 albertel 1255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1256: my ($result,$form_tag_start);
1.371 albertel 1257: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1258: &init_problem_globals('library');
1259: $Apache::lonhomework::type='problem';
1260: }
1.159 albertel 1261: if ($target eq 'edit') {
1.343 albertel 1262: ($result,$form_tag_start)=
1263: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1264: 'Edit');
1265: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1266: my $temp=&Apache::edit::insertlist($target,$token);
1267: $result.=$temp;
1268: } elsif ($target eq 'modified') {
1269: $result=$token->[4];
1.340 albertel 1270: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1271: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1272: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1273: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1274: ($result,$form_tag_start)=
1275: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1276: $name);
1.159 albertel 1277: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1278: $result.=" \n $form_tag_start".
1.159 albertel 1279: '<input type="hidden" name="submitted" value="yes" />';
1280: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1281: if ($Apache::lonhomework::type eq 'practice') {
1282: $result.= '<input type="submit" name="resetdata" '.
1283: 'value="'.&mt('New Problem Variation').'" />'.
1284: &practice_problem_header().'<hr />';
1285: }
1.159 albertel 1286: }
1287: return $result;
1.48 albertel 1288: }
1289:
1290: sub end_library {
1.159 albertel 1291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1292: my $result='';
1293: if ($target eq 'edit') {
1294: $result=&problem_edit_footer();
1.371 albertel 1295: } elsif ($target eq 'web'
1296: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1297: && $env{'request.state'} eq "construct") {
1.349 albertel 1298: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1299: }
1.371 albertel 1300: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1301: &reset_problem_globals('library');
1302: }
1.159 albertel 1303: return $result;
1.197 www 1304: }
1305:
1306: sub start_definetag {
1.326 albertel 1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1308:
1309: my $result;
1310:
1311: my $name = $token->[2]->{'name'};
1.326 albertel 1312: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1313: if ($target eq 'web') {
1314: if ($name=~/^\//) {
1315: $result=
1316: '<br /><table class="LC_sty_end"><tr><th>'.
1317: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1318: } else {
1319: $result=
1320: '<br /><table class="LC_sty_begin"><tr><th>'.
1321: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1322: }
1323: $skip = &HTML::Entities::encode($skip, '<>&"');
1324: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1325: }
1326: return $result;
1327: }
1328:
1329: sub end_definetag {
1330: return '';
1.1 albertel 1331: }
1332:
1333: sub start_block {
1.201 albertel 1334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1335:
1336: my $result;
1.1 albertel 1337:
1.339 albertel 1338: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1339: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1340: my $code = $token->[2]->{'condition'};
1.385 albertel 1341: if (defined($code) && $code ne '') {
1.137 albertel 1342: if (!$Apache::lonxml::default_homework_loaded) {
1343: &Apache::lonxml::default_homework_load($safeeval);
1344: }
1.131 albertel 1345: $result = &Apache::run::run($code,$safeeval);
1346: &Apache::lonxml::debug("block :$code: returned :$result:");
1347: } else {
1348: $result='1';
1349: }
1350: if ( ! $result ) {
1.201 albertel 1351: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1352: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1353: }
1354: $result='';
1355: } elsif ($target eq 'edit') {
1356: $result .=&Apache::edit::tag_start($target,$token);
1357: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1358: $token,40);
1359: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1360: } elsif ($target eq 'modified') {
1361: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1362: $safeeval,'condition');
1363: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1364: }
1.131 albertel 1365: return $result;
1.1 albertel 1366: }
1367:
1368: sub end_block {
1.167 www 1369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1370: my $result;
1371: if ($target eq "edit") {
1372: $result.= &Apache::edit::tag_end($target,$token,'');
1373: }
1374: return $result;
1375: }
1376:
1377: sub start_languageblock {
1.201 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1379:
1380: my $result;
1381:
1.339 albertel 1382: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1383: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1384: my $include = $token->[2]->{'include'};
1385: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1386: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1387: # This should not even happen, since we should at least have the server language
1.398 www 1388: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1389: # Now loop over all languages in order of preference
1390: foreach my $preferred_language (@preferred_languages) {
1.394 www 1391: # If the languageblock has no arguments, show the contents
1.399 www 1392: $result=1;
1393: my $found=0;
1.394 www 1394: # Do we have an include argument?
1.398 www 1395: if ($include) {
1.394 www 1396: # If include is specified, by default, don't render the block
1.399 www 1397: $result=0;
1.398 www 1398: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1399: # ... but if my preferred language is included, render it
1.398 www 1400: if ($included_language eq $preferred_language) {
1.399 www 1401: $result=1;
1402: $found=1;
1.398 www 1403: }
1404: }
1405: }
1.394 www 1406: # Do we have an exclude argument?
1.398 www 1407: if ($exclude) {
1.399 www 1408: $result=1;
1.398 www 1409: foreach my $excluded_language (split(/\,/,$exclude)) {
1410: if ($excluded_language eq $preferred_language) {
1.399 www 1411: $result=0;
1412: $found=1;
1.398 www 1413: }
1414: }
1415: }
1.399 www 1416: if ($found) { last; }
1.398 www 1417: }
1.201 albertel 1418: if ( ! $result ) {
1419: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1420: $style);
1421: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1422: }
1423: $result='';
1.167 www 1424: } elsif ($target eq 'edit') {
1425: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1426: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1427: $token,40);
1.211 albertel 1428: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1429: $token,40);
1430: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1431: } elsif ($target eq 'modified') {
1432: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1433: $safeeval,'include',
1434: 'exclude');
1.167 www 1435: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1436: }
1437: return $result;
1438: }
1439:
1440: sub end_languageblock {
1.170 www 1441: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1442: my $result;
1.201 albertel 1443: if ($target eq "edit") {
1.170 www 1444: $result.= &Apache::edit::tag_end($target,$token,'');
1445: }
1446: return $result;
1447: }
1448:
1.397 albertel 1449: {
1450: my %available_texts;
1451: sub start_translated {
1452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1453: &Apache::lonxml::register('Apache::structuretags',('lang'));
1454: undef(%available_texts);
1455: }
1456:
1457: sub end_translated {
1458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1459: my $result;
1460: #show the translation on viewable targets
1461: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1462: # or non-viewable targets, if it's embedded in something that
1463: # wants the output
1464: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1465: && &Apache::lonxml::in_redirection() ) ) {
1466: my @possibilities = keys(%available_texts);
1467: my $which =
1468: &Apache::loncommon::languages(\@possibilities) || 'default';
1469: $result = $available_texts{$which};
1470: }
1471: undef(%available_texts);
1472: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1473: return $result;
1474: }
1475:
1476:
1477: sub start_lang {
1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1479: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1480: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1481: &Apache::lonxml::startredirection();
1482: }
1483: return '';
1484: }
1485:
1486: sub end_lang {
1487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1488: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1489: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1490: my $result = &Apache::lonxml::endredirection();
1491: my $which = &Apache::lonxml::get_param('which',$parstack,
1492: $safeeval);
1.431 raeburn 1493: if ($which=~/\w/) {
1494: $available_texts{$which} = $result;
1495: }
1496: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1497: $safeeval);
1498: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1499: if ($language=~/\w/) {
1500: $available_texts{$language} = $result;
1501: }
1.427 bisitz 1502: }
1503:
1.397 albertel 1504: }
1505: return '';
1506: }
1507: }
1508:
1.170 www 1509: sub start_instructorcomment {
1.201 albertel 1510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1511:
1512: my $result;
1513:
1.339 albertel 1514: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1515: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1 raeburn 1516: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1517: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1518: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1519: $parser,$style);
1.170 www 1520: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1521: }
1522: $result='';
1523: } elsif ($target eq 'edit') {
1524: $result .=&Apache::edit::tag_start($target,$token);
1525: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1526: }
1527: return $result;
1528: }
1529:
1530: sub end_instructorcomment {
1.159 albertel 1531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1532: my $result;
1533: if ($target eq "edit") {
1534: $result.= &Apache::edit::tag_end($target,$token,'');
1535: }
1536: return $result;
1.4 tsai 1537: }
1538:
1539: sub start_while {
1.326 albertel 1540: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1541:
1.160 albertel 1542: my $result;
1.339 albertel 1543: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1544: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1545: my $code = $token->[2]->{'condition'};
1.4 tsai 1546:
1.160 albertel 1547: push( @Apache::structuretags::whileconds, $code);
1548: if (!$Apache::lonxml::default_homework_loaded) {
1549: &Apache::lonxml::default_homework_load($safeeval);
1550: }
1551: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1552: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1553: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1554: push( @Apache::structuretags::whileline, $token->[5]);
1555: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1556: if ( $result ) {
1557: &Apache::lonxml::newparser($parser,\$bodytext);
1558: }
1559: } elsif ($target eq 'edit') {
1560: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1561: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1562: $token,40);
1563: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1564: } elsif ($target eq 'modified') {
1565: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1566: $safeeval,'condition');
1567: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1568: }
1.160 albertel 1569: return $result;
1.4 tsai 1570: }
1571:
1572: sub end_while {
1.159 albertel 1573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1574: my $result;
1575:
1.339 albertel 1576: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1577: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1578: my $code = pop(@Apache::structuretags::whileconds);
1579: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1580: my $line = pop(@Apache::structuretags::whileline);
1581: my $return = &Apache::run::run($code,$safeeval);
1582: my $starttime=time;
1583: my $error=0;
1584: while ($return) {
1585: if (time-$starttime >
1586: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1587: $return = 0; $error=1; next;
1.161 albertel 1588: }
1589: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1590: if ($target eq 'grade' || $target eq 'answer' ||
1591: $target eq 'analyze') {
1592: # grade/answer/analyze should produce no output but if we
1593: # are redirecting, the redirecter should know what to do
1594: # with the output
1595: if (!$Apache::lonxml::redirection) { undef($result); }
1596: }
1.161 albertel 1597: $return = &Apache::run::run($code,$safeeval);
1598: }
1599: if ($error) {
1.430 bisitz 1600: &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 1601: }
1602: } elsif ($target eq "edit") {
1603: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1604: }
1.160 albertel 1605: return $result;
1.1 albertel 1606: }
1.6 tsai 1607:
1.160 albertel 1608: # <randomlist show="1">
1.6 tsai 1609: # <tag1>..</tag1>
1610: # <tag2>..</tag2>
1611: # <tag3>..</tag3>
1.160 albertel 1612: # ...
1.6 tsai 1613: # </randomlist>
1614: sub start_randomlist {
1.326 albertel 1615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1616: my $result;
1.339 albertel 1617: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1618: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1619: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1620: my $b_parser= HTML::LCParser->new(\$body);
1621: $b_parser->xml_mode(1);
1622: $b_parser->marked_sections(1);
1.159 albertel 1623: my $b_tok;
1624: my @randomlist;
1625: my $list_item;
1626: while($b_tok = $b_parser->get_token() ) {
1627: if($b_tok->[0] eq 'S') { # start tag
1628: # get content of the tag until matching end tag
1629: # get all text upto the matching tag
1630: # and push the content into @randomlist
1631: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1632: $b_parser);
1633: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1634: push(@randomlist,$list_item);
1635: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1636: # $list_item</b>";
1637: }
1638: if($b_tok->[0] eq 'T') { # text
1639: # what to do with text in between tags?
1640: # print "<b>TEXT $b_tok->[1]</b><br />";
1641: }
1642: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1643: # print "<b>END-TAG $b_tok->[1]</b><br />";
1644: # }
1645: }
1.303 albertel 1646: if (@randomlist) {
1647: my @idx_arr = (0 .. $#randomlist);
1648: &Apache::structuretags::shuffle(\@idx_arr);
1649: my $bodytext = '';
1650: my $show=$#randomlist;
1651: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1652: $showarg--;
1653: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1654: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1655: my @currlist;
1656: my $part = $Apache::inputtags::part;
1657: if ($part ne '') {
1658: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1659: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1660: if (!(grep(/^\Q$part\E$/,@currlist))) {
1661: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1662: }
1663: } else {
1664: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1665: }
1666: }
1667: }
1.303 albertel 1668: for(0 .. $show) {
1669: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1670: }
1671: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1672: }
1673: } elsif ($target eq 'edit' ) {
1674: $result .=&Apache::edit::tag_start($target,$token);
1675: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1676: $token,5);
1677: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1678: } elsif ($target eq 'modified' ) {
1679: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1680: $safeeval,'show');
1681: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1682: }
1683: return $result;
1.7 tsai 1684: }
1685:
1686: sub shuffle {
1687: my $a=shift;
1688: my $i;
1.303 albertel 1689: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1690: &Apache::response::pushrandomnumber();
1.159 albertel 1691: for($i=@$a;--$i;) {
1692: my $j=int(&Math::Random::random_uniform() * ($i+1));
1693: next if $i == $j;
1694: @$a[$i,$j] = @$a[$j,$i];
1695: }
1.251 albertel 1696: &Apache::response::poprandomnumber();
1.7 tsai 1697: }
1.6 tsai 1698: }
1699:
1700: sub end_randomlist {
1.159 albertel 1701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1702: my $result;
1703: if ($target eq 'edit' ) {
1704: $result=&Apache::edit::tag_end($target,$token,
1705: 'End Randomly Parsed Block');
1706: }
1707: return $result;
1.6 tsai 1708: }
1709:
1.283 albertel 1710: sub ordered_show_check {
1711: my $last_part=$Apache::inputtags::partlist[-2];
1712: my $in_order=
1713: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1714: my $in_order_show=1;
1715: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1716: $in_order_show=&Apache::response::check_status($last_part);
1717: }
1718: return $in_order_show;
1719: }
1720:
1.465.2.2 raeburn 1721: sub start_startpartmarker {
1722: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1723: my $result='';
1724: if ($target eq 'edit') {
1725: $result=&Apache::edit::tag_start($target,$token);
1726: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1727: $result.=&Apache::edit::end_table();
1728:
1729: }
1730: return $result;
1731: }
1732:
1733: sub end_startpartmarker {
1734: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1735: my @result;
1736: if ($target eq 'edit') { $result[1]='no'; }
1737: return @result;
1738: }
1739:
1740: sub start_endpartmarker {
1741: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1742: my $result='';
1743: if ($target eq 'edit') {
1744: $result=&Apache::edit::tag_start($target,$token);
1745: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1746: $result.=&Apache::edit::end_table();
1747:
1748: }
1749: return $result;
1750: }
1751:
1752: sub end_endpartmarker {
1753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1754: my @result;
1755: if ($target eq 'edit') { $result[1]='no'; }
1756: return @result;
1757: }
1758:
1.11 albertel 1759: sub start_part {
1.326 albertel 1760: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1761: if (!$Apache::lonxml::metamode) {
1762: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1763: # duedates.
1764: }
1.159 albertel 1765: my $result='';
1.386 albertel 1766: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1767: $Apache::inputtags::part=$id;
1.177 albertel 1768: push(@Apache::inputtags::partlist,$id);
1769: @Apache::inputtags::response=();
1.159 albertel 1770: @Apache::inputtags::previous=();
1771: @Apache::inputtags::previous_version=();
1.405 albertel 1772: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1773: &Apache::response::reset_params();
1774:
1.159 albertel 1775: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1776: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1777: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1778: my $in_order_show=&ordered_show_check();
1.214 albertel 1779: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1780: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1781: &Apache::run::run($expression,$safeeval);
1.159 albertel 1782:
1783: if ($target eq 'meta') {
1.224 www 1784: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1785: return &Apache::response::mandatory_part_meta.
1786: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1787: } elsif ($target eq 'web' || $target eq 'grade' ||
1788: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1789: if ($hidden || !$in_order_show) {
1.326 albertel 1790: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1791: } else {
1792: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1793: push (@Apache::inputtags::status,$status);
1794: my $expression='$external::datestatus="'.$status.'";';
1795: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1796: &Apache::run::run($expression,$safeeval);
1.284 albertel 1797: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1798: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1799: }
1.216 albertel 1800: if (( $status eq 'CLOSED' ) ||
1801: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1802: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1803: ( $status eq 'BANNED') ||
1804: ( $status eq 'UNAVAILABLE') ||
1805: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1806: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1807: $style);
1.159 albertel 1808: if ( $target eq "web" ) {
1.211 albertel 1809: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1810: } elsif ( $target eq 'tex' ) {
1.284 albertel 1811: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1812: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1813: } else {
1.211 albertel 1814: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1815: }
1.159 albertel 1816: }
1817: } else {
1818: if ($target eq 'tex') {
1.284 albertel 1819: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1820: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1821: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1822: } else {
1823: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1824: }
1.195 sakharuk 1825: }
1.159 albertel 1826: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1827: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1828: my @allkeys = split /,/,$allkeys;
1829: my $allow_print_points = 0;
1830: foreach my $partial_key (@allkeys) {
1.230 albertel 1831: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1832: if ($1 ne '0') {$allow_print_points=1;}
1833: }
1834: }
1.275 albertel 1835: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1836: if (defined($maxtries) && $maxtries < 0) {
1837: $allow_print_points=0;
1838: }
1.302 albertel 1839: if (lc($env{'course.'.$env{'request.course.id'}.
1840: '.disableexampointprint'}) eq 'yes') {
1841: $allow_print_points=0;
1842: }
1.463 foxr 1843: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1844: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1845:
1846: }
1.233 www 1847: } elsif ($target eq 'web') {
1.356 www 1848: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1849: }
1850: }
1851: }
1852: } elsif ($target eq 'edit') {
1853: $result.=&Apache::edit::tag_start($target,$token);
1854: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1855: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1856: ' '.
1857: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1858: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1859: } elsif ($target eq 'modified') {
1860: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1861: $safeeval,'id','display');
1.159 albertel 1862: if ($constructtag) {
1.225 albertel 1863: #limiting ids to only letters numbers, and space
1.224 www 1864: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1865: $result = &Apache::edit::rebuild_tag($token);
1866: }
1867: }
1868: return $result;
1.11 albertel 1869: }
1870:
1871: sub end_part {
1.159 albertel 1872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1873: &Apache::lonxml::debug("in end_part $target ");
1874: my $status=$Apache::inputtags::status['-1'];
1875: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1876: my $in_order_show=&ordered_show_check();
1.321 albertel 1877: my $result;
1878: if (!$Apache::lonxml::metamode) {
1879: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1880: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1881: }
1.312 albertel 1882: if ($target eq 'grade') {
1.249 albertel 1883: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1884: !$hidden && $in_order_show) {
1.311 foxr 1885: $result.=&Apache::inputtags::grade;
1.249 albertel 1886: } else {
1887: # move any submission data to .hidden
1888: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1889: }
1.283 albertel 1890: } elsif (($target eq 'web' || $target eq 'tex') &&
1891: !$hidden && $in_order_show) {
1.159 albertel 1892: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1893: $target);
1.212 albertel 1894: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1895: $gradestatus='';
1896: }
1.311 foxr 1897: $result.=$gradestatus;
1.265 sakharuk 1898: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1899: } elsif ($target eq 'edit') {
1.311 foxr 1900: $result.=&Apache::edit::end_table();
1.322 albertel 1901: } elsif ($target eq 'modified') {
1902: $result .= $token->[2];
1.159 albertel 1903: }
1904: pop @Apache::inputtags::status;
1905: $Apache::inputtags::part='';
1.295 albertel 1906: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1907: return $result;
1.11 albertel 1908: }
1.1 albertel 1909:
1.25 albertel 1910: sub start_preduedate {
1.326 albertel 1911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1912: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1913: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1914: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1915: if (!$Apache::lonhomework::scantronmode &&
1916: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1917: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1918: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1919: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1920: }
1.24 albertel 1921: }
1.159 albertel 1922: return '';
1.24 albertel 1923: }
1924:
1.25 albertel 1925: sub end_preduedate {
1.159 albertel 1926: return '';
1.24 albertel 1927: }
1928:
1.369 foxr 1929: # In all the modes where <postanswerdate> text is
1930: # displayable, all we do is eat up the text between the start/stop
1931: # tags if the conditions are not right to display it.
1.25 albertel 1932: sub start_postanswerdate {
1.326 albertel 1933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1934: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1935: &Apache::lonnet::allowed('pav',
1936: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1937: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1938: $target eq 'tex' ) {
1.300 albertel 1939: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1940: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1941: (($target eq 'tex') && !$pav)) {
1.326 albertel 1942: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1943: }
1944: }
1945: return '';
1.24 albertel 1946: }
1947:
1.25 albertel 1948: sub end_postanswerdate {
1.159 albertel 1949: return '';
1.24 albertel 1950: }
1951:
1.25 albertel 1952: sub start_notsolved {
1.326 albertel 1953: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1954: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1955: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1956: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1957: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1958: if ($gradestatus =~ /^correct/ &&
1959: &Apache::response::show_answer()) {
1.159 albertel 1960: &Apache::lonxml::debug("skipping");
1.326 albertel 1961: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1962: }
1.24 albertel 1963: }
1.159 albertel 1964: return '';
1.24 albertel 1965: }
1966:
1.25 albertel 1967: sub end_notsolved {
1.159 albertel 1968: return '';
1.24 albertel 1969: }
1970:
1971: sub start_solved {
1.326 albertel 1972: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1973: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1974: $target eq 'tex') {
1975: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1976: if ($gradestatus !~ /^correct/ ||
1977: !&Apache::response::show_answer()) {
1.326 albertel 1978: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1979: }
1.24 albertel 1980: }
1.159 albertel 1981: return '';
1.24 albertel 1982: }
1983:
1984: sub end_solved {
1.248 albertel 1985: return '';
1986: }
1987:
1988: sub start_problemtype {
1.326 albertel 1989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1990: my $result;
1.339 albertel 1991: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1992: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1993: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1994: if (!defined($mode)) { $mode='show'; }
1995: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1996: my $found=0;
1997: foreach my $type (split(',',$for)) {
1998: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1999: }
2000: if ($mode eq 'show' && !$found) {
1.326 albertel 2001: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2002: }
2003: if ($mode eq 'hide' && $found) {
1.326 albertel 2004: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2005: }
2006: } elsif ($target eq 'edit') {
2007: $result .=&Apache::edit::tag_start($target,$token);
2008: $result.=&Apache::edit::select_arg('Mode:','mode',
2009: [['show','Show'],
2010: ['hide','Hide']]
2011: ,$token);
2012: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2013: [ ['exam','Exam/Quiz Problem'],
2014: ['survey','Survey'],
1.465 raeburn 2015: ['surveycred','Survey (with credit)'],
2016: ['anonsurvey','Anonymous Survey'],
2017: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2018: ['problem','Homework Problem'],
2019: ['practice','Practice Problem'] ]
1.248 albertel 2020: ,$token);
2021: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2022: } elsif ($target eq 'modified') {
2023: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2024: $safeeval,'mode','for');
2025: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2026: }
2027: return $result;
2028: }
2029:
2030: sub end_problemtype {
1.159 albertel 2031: return '';
1.24 albertel 2032: }
1.34 albertel 2033:
2034: sub start_startouttext {
1.159 albertel 2035: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2036: my @result=(''.'');
2037: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2038:
2039: my $nesting =
2040: &Apache::lonxml::set_state('outtext',
2041: &Apache::lonxml::get_state('outtext')+1);
2042: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2043: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2044: }
1.159 albertel 2045: return (@result);
1.34 albertel 2046: }
1.159 albertel 2047:
1.34 albertel 2048: sub end_startouttext {
1.326 albertel 2049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2050: my $result='';
2051: my $text='';
2052: if ($target eq 'edit') {
1.424 foxr 2053: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2054: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2055: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2056: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2057: .&Apache::edit::deletelist($target,$token)
1.465.2.4! raeburn 2058: .'</span></td>'
! 2059: .'<td align="left"><span id="math_'.$areaid.'" />'
! 2060: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
! 2061: .'</td>'
! 2062: .'<td>'
! 2063: .&Apache::edit::insertlist($target,$token)
! 2064: .'</td>'
! 2065: .'<td align="right" valign="top">' .
! 2066: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2067: &Apache::edit::end_row().
1.362 albertel 2068: &Apache::edit::start_spanning_row()."\n".
1.255 www 2069: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2070: }
2071: if ($target eq 'modified') {
1.219 albertel 2072: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2073: }
2074: if ($target eq 'tex') {
2075: $result .= '\noindent ';
2076: }
2077: return $result;
1.34 albertel 2078: }
1.159 albertel 2079:
1.34 albertel 2080: sub start_endouttext {
1.159 albertel 2081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2082: my $result='';
2083: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2084: if ($target eq "modified") {
2085: $result='<endouttext />'.
1.377 albertel 2086: &Apache::edit::handle_insertafter('startouttext');
2087: }
1.404 albertel 2088:
2089: my $nesting =
2090: &Apache::lonxml::set_state('outtext',
2091: &Apache::lonxml::get_state('outtext')-1);
2092: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2093: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2094: &Apache::lonxml::set_state('outtext', 0);
2095: }
1.159 albertel 2096: return $result;
1.34 albertel 2097: }
1.159 albertel 2098:
1.34 albertel 2099: sub end_endouttext {
1.159 albertel 2100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2101: my @result=('','');
2102: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2103: return (@result);
1.34 albertel 2104: }
1.159 albertel 2105:
1.45 albertel 2106: sub delete_startouttext {
1.326 albertel 2107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2108: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2109: my $text=$$parser['-1']->get_text("/endouttext");
2110: my $ntoken=$$parser['-1']->get_token();
2111: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2112: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2113: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2114: # they did the last time round
2115: &Apache::lonxml::increasedepth($ntoken);
2116: &Apache::lonxml::decreasedepth($ntoken);
2117: return 1;
1.193 www 2118: }
2119:
2120: sub start_simpleeditbutton {
2121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2122: my $result='';
1.284 albertel 2123: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2124: ($target eq 'web') &&
1.330 albertel 2125: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2126: my $url=$env{'request.noversionuri'};
1.193 www 2127: $url=~s/\?.*$//;
1.367 albertel 2128: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2129: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2130: # $result='<p class="LC_warning">'
2131: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2132: # .&Apache::loncommon::help_open_topic('Caching')
2133: # .'</p>';
1.451 bisitz 2134: $result.=&Apache::lonhtmlcommon::start_funclist()
2135: .&Apache::lonhtmlcommon::add_item_funclist(
2136: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2137: .&mt('Edit').'</a>')
2138: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2139:
1.193 www 2140: }
2141: return $result;
2142: }
2143:
2144: sub end_simpleeditbutton {
2145: return '';
1.45 albertel 2146: }
1.34 albertel 2147:
1.428 raeburn 2148: sub practice_problem_header {
2149: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2150: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2151: '</span>';
2152: }
2153:
1.1 albertel 2154: 1;
2155: __END__
1.435 jms 2156:
2157: =pod
2158:
2159: =back
2160:
2161: =cut
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