Annotation of loncom/homework/structuretags.pm, revision 1.495
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.495 ! raeburn 4: # $Id: structuretags.pm,v 1.494 2011/07/28 02:53:38 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 {
1.469 www 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 $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
1.483 raeburn 131: // <![CDATA[
1.494 raeburn 132: function setSubmittedPart (part,prefix) {
133: if (typeof(prefix) == 'undefined') {
134: this.document.lonhomework.submitted.value="part_"+part;
135: } else {
136: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
137: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
138: this.document.lonhomework.elements[i].value="part_"+part;
139: }
140: }
141: }
1.400 albertel 142: }
143:
144: function image_response_click (which, e) {
145: init_geometry();
146: if (!e) { e = window.event; } //IE
147: var input_element = document.lonhomework.elements[which];
1.401 albertel 148: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 149: var token = token_element.value;
1.401 albertel 150: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 151: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
152: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
153: var click = x+':'+y;
154: input_element.value = click;
1.485 raeburn 155: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 156: }
1.483 raeburn 157: // ]]>
1.400 albertel 158: </script>
159: JS
160: }
161:
1.416 raeburn 162: sub setmode_javascript {
163: return <<"ENDSCRIPT";
164: <script type="text/javascript">
1.485 raeburn 165: // <![CDATA[
1.416 raeburn 166: function setmode(form,probmode) {
167: form.problemmode.value = probmode;
168: form.submit();
169: }
1.485 raeburn 170: // ]]>
1.416 raeburn 171: </script>
172: ENDSCRIPT
173: }
174:
1.48 albertel 175: sub page_start {
1.345 albertel 176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
177: $extra_head)=@_;
1.159 albertel 178: my %found;
1.207 albertel 179: foreach my $taginside (@$tagstack) {
1.159 albertel 180: foreach my $taglookedfor ('html','body','form') {
181: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
182: }
183: }
184:
1.343 albertel 185: if ($target eq 'tex') {
186: return
187: &Apache::londefdef::start_html($target,$token,$tagstack,
188: $parstack,$parser,$safeeval);
189: }
190:
1.474 raeburn 191: $extra_head .= &homework_js().
192: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
193: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
194: my %textarea_args = (
195: dragmath => 'math',
196: );
197: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 198: }
1.478 raeburn 199: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 200: my $needs_upload;
1.495 ! raeburn 201: my ($symb)= &Apache::lonnet::whichuser();
! 202: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 203: if ($is_task) {
1.495 ! raeburn 204: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 205: } else {
206: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 ! raeburn 207: unless ($env{'request.state'} eq 'construct') {
! 208: my $navmap = Apache::lonnavmaps::navmap->new();
! 209: if (ref($navmap)) {
! 210: my $mapres = $navmap->getResourceByUrl($map);
! 211: unless ($mapres->is_page()) {
! 212: $needs_upload = 1;
! 213: }
! 214: }
! 215: }
1.493 raeburn 216: } else {
217: unless ($env{'request.state'} eq 'construct') {
218: my $navmap = Apache::lonnavmaps::navmap->new();
219: if (ref($navmap)) {
1.495 ! raeburn 220: my $mapres = $navmap->getResourceByUrl($map);
! 221: unless ($mapres->is_page()) {
! 222: my $res = $navmap->getBySymb($symb);
! 223: if (ref($res)) {
! 224: my $partlist = $res->parts();
! 225: if (ref($partlist) eq 'ARRAY') {
! 226: foreach my $part (@{$partlist}) {
! 227: my @types = $res->responseType($part);
! 228: my @ids = $res->responseIds($part);
! 229: for (my $i=0; $i < scalar(@ids); $i++) {
! 230: if ($types[$i] eq 'essay') {
! 231: my $partid = $part.'_'.$ids[$i];
! 232: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
! 233: $needs_upload = 1;
! 234: last;
! 235: }
1.493 raeburn 236: }
237: }
238: }
1.495 ! raeburn 239: }
! 240: }
1.493 raeburn 241: }
242: }
243: }
244: }
1.495 ! raeburn 245: if ($needs_upload) {
! 246: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
! 247: }
1.478 raeburn 248: }
1.425 raeburn 249:
1.344 albertel 250: my %body_args;
251: if (defined($found{'html'})) {
252: $body_args{'skip_phases'}{'head'}=1;
253: } else {
1.343 albertel 254:
1.345 albertel 255: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 256:
1.379 albertel 257: $extra_head .= &Apache::londefdef::generate_css_links();
258:
1.384 albertel 259: if ($env{'request.state'} eq 'construct') {
1.343 albertel 260: $extra_head.=&Apache::edit::js_change_detection().
261: "<script type=\"text/javascript\">\n".
262: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
263: &Apache::loncommon::browser_and_searcher_javascript().
264: "\n</script>\n";
265: }
1.159 albertel 266: }
1.343 albertel 267:
1.446 bisitz 268: my $pageheader = '';
1.344 albertel 269: if (defined($found{'body'})) {
270: $body_args{'skip_phases'}{'body'}=1;
271: } elsif (!defined($found{'body'})
272: && $env{'request.state'} eq 'construct') {
1.343 albertel 273: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 274: # Breadcrumbs for Construction Space
275: &Apache::lonhtmlcommon::clear_breadcrumbs();
276: &Apache::lonhtmlcommon::add_breadcrumb({
277: 'text' => 'Construction Space',
278: 'href' => &Apache::loncommon::authorspace(),
279: });
1.460 droeschl 280: # breadcrumbs (and tools) will be created
281: # in start_page->bodytag->innerregister
282:
1.450 bisitz 283: # FIXME Where are we?
284: # &Apache::lonhtmlcommon::add_breadcrumb({
285: # 'text' => 'Problem Editing', # 'Problem Testing'
286: # 'href' => '',
287: # });
1.460 droeschl 288: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 289: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 290: }
1.272 albertel 291: } elsif (!defined($found{'body'})) {
1.343 albertel 292: my %add_entries;
1.159 albertel 293: my $background=&Apache::lonxml::get_param('background',$parstack,
294: $safeeval);
1.343 albertel 295: if ($background ne '' ) {
296: $add_entries{'background'} = $background;
297: }
1.344 albertel 298:
1.290 albertel 299: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
300: $safeeval);
1.446 bisitz 301: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 302:
1.446 bisitz 303: $body_args{'bgcolor'} = $bgcolor;
304: # $body_args{'no_title'} = 1;
305: $body_args{'force_register'} = 1;
306: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 307: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 308: $body_args{'only_body'} = 1;
309: }
1.344 albertel 310: }
1.365 albertel 311: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 312: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
313: \%body_args);
1.446 bisitz 314: $page_start .= $pageheader;
1.462 raeburn 315: if (!defined($found{'body'})
316: && $env{'request.state'} ne 'construct'
317: && ($target eq 'web' || $target eq 'webgrade')) {
318:
319: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
320: if ($symb eq '' && !$publicuser) {
321: $page_start .= '<p class="LC_info">'
322: .&mt('Browsing resource, all submissions are temporary.')
323: .'</p>';
1.457 bisitz 324: }
1.344 albertel 325: }
326:
1.409 albertel 327: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 328: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 329: }
330: my $form_tag_start;
331: if (!defined($found{'form'})) {
1.337 albertel 332: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 333: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 334: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 335: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 336: $form_tag_start.=$uri.'" ';
337: if ($target eq 'edit') {
338: $form_tag_start.=&Apache::edit::form_change_detection();
339: }
1.493 raeburn 340: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
341: my ($path,$multiresp) =
342: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 ! raeburn 343: if (($is_task) || ($needs_upload)) {
! 344: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 345: }
1.368 albertel 346: $form_tag_start.='>'."\n";
1.355 albertel 347:
348: my $symb=&Apache::lonnet::symbread();
349: if ($symb =~ /\S/) {
350: $symb=
351: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
352: $form_tag_start.=
1.368 albertel 353: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 354: }
1.159 albertel 355: }
1.343 albertel 356: return ($page_start,$form_tag_start);
1.105 albertel 357: }
358:
1.141 matthew 359: #use Time::HiRes();
1.105 albertel 360: sub get_resource_name {
1.159 albertel 361: my ($parstack,$safeeval)=@_;
1.388 foxr 362: my $name;
1.204 albertel 363: if (defined($Apache::lonhomework::name)) {
1.388 foxr 364: $name = $Apache::lonhomework::name;
365: } else {
366: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 367: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 368: if ($name eq '') {
369: $name=&Apache::lonnet::EXT('resource.title');
370: if ($name eq 'con_lost') { $name = ''; }
371: }
372: if ($name!~/\S+/) {
373: $name=$env{'request.uri'};
374: $name=~s-.*/([^/]+)$-$1-;
375: }
376: # The name has had html tags escaped:
377:
378: $name=~s/</</gs;
379: $name=~s/>/>/gs;
380:
381: $Apache::lonhomework::name=$name;
1.204 albertel 382: }
1.159 albertel 383: return $name;
1.105 albertel 384: }
385:
386: sub setup_rndseed {
1.479 raeburn 387: my ($safeeval,$target)=@_;
1.367 albertel 388: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 389: my ($questiontype,$set_safespace,$rndseed);
390: if ($target eq 'analyze') {
391: $questiontype = $env{'form.grade_questiontype'};
392: }
393: unless (defined($questiontype)) {
394: $questiontype = $Apache::lonhomework::type;
395: }
1.333 albertel 396: if ($env{'request.state'} eq "construct"
397: || $symb eq ''
398: || $Apache::lonhomework::type eq 'practice'
399: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 400: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 401: ['rndseed']);
1.284 albertel 402: $rndseed=$env{'form.rndseed'};
1.159 albertel 403: if (!$rndseed) {
1.162 albertel 404: $rndseed=$Apache::lonhomework::history{'rndseed'};
405: if (!$rndseed) {
406: $rndseed=time;
407: }
1.284 albertel 408: $env{'form.rndseed'}=$rndseed;
1.162 albertel 409: }
1.479 raeburn 410: if (($env{'request.state'} eq "construct") &&
411: ($Apache::lonhomework::type eq 'randomizetry')) {
412: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
413: if ($tries) {
414: $rndseed += $tries;
415: }
1.480 raeburn 416: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 417: }
1.374 albertel 418: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
419: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 420: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 421: srand(time);
422: $rndseed=int(rand(2100000000));
1.284 albertel 423: $env{'form.rndseed'}=$rndseed;
424: delete($env{'form.resetdata'});
425: delete($env{'form.newrandomization'});
1.159 albertel 426: }
1.488 www 427: $rndseed=~s/\,/\:/g;
428: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 429: if (defined($rndseed)) {
430: my ($c1,$c2)=split(/\:/,$rndseed);
431: unless ($c2) { $c2=0; }
432: unless (($c1==int($c1)) && ($c2==int($c2))) {
433: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
434: }
1.187 albertel 435: }
1.247 albertel 436: if ($Apache::lonhomework::history{'resource.CODE'}) {
437: $rndseed=&Apache::lonnet::rndseed();
438: }
1.479 raeburn 439: $set_safespace = 1;
440: } elsif ($questiontype eq 'randomizetry') {
441: if ($target eq 'analyze') {
442: if (defined($env{'form.grade_rndseed'})) {
443: $rndseed = $env{'form.grade_rndseed'};
444: }
445: }
446: unless (($target eq 'analyze') && (defined($rndseed))) {
447: $rndseed=&Apache::lonnet::rndseed();
448: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
449: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
450: $curr_try ++;
451: }
452: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
453: $rndseed = $1;
454: }
455: if ($curr_try) {
456: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
457: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
458: my $inc = int(($curr_try-1)/$reqtries);
459: $rndseed += $inc;
460: } else {
461: $rndseed += $curr_try;
462: }
463: }
464: }
465: $set_safespace = 1;
466: }
467: if ($set_safespace) {
468: if ($safeeval) {
469: &Apache::lonxml::debug("Setting rndseed to $rndseed");
470: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
471: }
472: }
473: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
474: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 475: }
476: return $rndseed;
1.105 albertel 477: }
478:
1.268 albertel 479: sub remember_problem_state {
480: return '
1.284 albertel 481: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
482: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
483: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 484: }
485:
1.487 www 486: sub problem_edit_action_button {
487: my ($name,$action,$accesskey,$text,$flag)=@_;
488: my $actionscript="setmode(this.form,'$action')";
489: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
490: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
491: }
492:
1.423 www 493: sub problem_edit_buttons {
1.487 www 494: my ($mode)=@_;
495: # Buttons that do not save
496: my $result='<div class="LC_edit_problem_discards">'.
497: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
498: if ($mode eq 'editxml') {
499: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
500: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
501: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
502: } else {
503: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
504: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
505: }
506: $result.="\n</div>";
507: # Buttons that save
508: $result.='<div class="LC_edit_problem_saves">';
509: if ($mode eq 'editxml') {
510: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
511: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
512: } else {
513: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
514: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
515: }
516: $result.="\n</div>\n";
517: return $result;
1.423 www 518: }
519:
520: sub problem_edit_header {
1.487 www 521: return '<input type="hidden" name="submitted" value="edit" />'.
522: &remember_problem_state('edit').'
1.423 www 523: <div class="LC_edit_problem_header">
524: <div class="LC_edit_problem_header_title">
525: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
526: </div>'.
1.487 www 527: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 528: &problem_edit_buttons().'
1.459 bisitz 529: <hr style="clear:both;" />
1.409 albertel 530: '.&Apache::lonxml::message_location().'
1.408 albertel 531: </div>
532: '.
1.458 bisitz 533: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 534: }
535:
536: sub problem_edit_footer {
1.412 albertel 537: return '</td></tr></table><br />
538: <div class="LC_edit_problem_footer">
1.453 bisitz 539: <hr />'.
1.423 www 540: &problem_edit_buttons().'
1.459 bisitz 541: <hr style="clear:both;" />
1.412 albertel 542: </div>
543: '.
1.342 albertel 544: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 545: }
546:
1.235 albertel 547: sub option {
548: my ($value,$name) = @_;
549: my $result ="<option value='".$value."' ";
1.284 albertel 550: if ($env{'form.'.$name} eq $value) {
1.235 albertel 551: $result.=" selected='on' ";
552: }
553: $result.='>';
554: return $result;
555: }
556:
1.105 albertel 557: sub problem_web_to_edit_header {
1.159 albertel 558: my ($rndseed)=@_;
1.406 albertel 559: my $result .= '<div class="LC_edit_problem_header">';
560:
561: if (!$Apache::lonhomework::parsing_a_task) {
562: $result .=
563: '<div class="LC_edit_problem_header_title">'.
564: &mt('Problem Testing').
565: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
566: '</div>';
567: } else {
568: $result .=
569: '<div class="LC_edit_problem_header_title">'.
570: &mt('Task Testing').
571: '</div>';
572: }
573:
1.315 albertel 574: my $show_all_foils_text =
575: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 576: &mt('Show All Instances')
577: : &mt('Show All Foils');
1.315 albertel 578:
1.452 bisitz 579: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
580: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 581: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 582: $show_all.= ' /> '.$show_all_foils_text
583: .'</label></span>';
1.406 albertel 584:
585:
1.384 albertel 586:
1.406 albertel 587: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 588: if (!$Apache::lonhomework::parsing_a_task) {
589: $result.="
1.406 albertel 590: <div class='LC_edit_problem_header_row1'>
591: <span class=\"LC_nobreak\">
1.405 albertel 592: ".&mt("Problem Status:")."
1.235 albertel 593: <select name='problemstate'>
1.270 albertel 594: <option value=''></option>
1.235 albertel 595: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
596: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
597: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
598: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
599: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
600: </select>
1.406 albertel 601: </span>
602: <span class=\"LC_nobreak\">
1.405 albertel 603: ".&mt("Problem Type:")."
1.235 albertel 604: <select name='problemtype'>
1.270 albertel 605: <option value=''></option>
1.242 albertel 606: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 607: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 608: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 609: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
610: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
611: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 612: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 613: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 614: </select>
1.406 albertel 615: </span>
616: $show_all
617: </div>
618: <div class='LC_edit_problem_header_row2'>
619: <span class=\"LC_nobreak\">
1.405 albertel 620: ".&mt("Feedback Mode:")."
1.235 albertel 621: <select name='problemstatus'>
622: <option value=''></option>
1.242 albertel 623: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 624: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
625: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 626: </select>
1.406 albertel 627: </span>
628: ";
629:
1.376 albertel 630: } elsif ($Apache::lonhomework::parsing_a_task) {
631: $result.="
1.406 albertel 632: <div class='LC_edit_problem_header_row1'>
633: <span class=\"LC_nobreak\">
1.405 albertel 634: ".&mt("Problem Status:")."
1.376 albertel 635: <select name='problemstate'>
636: <option value=''></option>
637: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
638: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
639: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
640: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
641: </select>
1.406 albertel 642: </span>
643: $show_all
644: ";
645: }
646: $result.='
647: <span class="LC_nobreak">
648: '.&mt('Apply style file: ').'
649: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
650: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
651: </span>
1.422 www 652: </div>
653: <div class="LC_edit_problem_header_row1">'.
654: &Apache::lonxml::renderingoptions().'
1.406 albertel 655: </div>
656: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
657: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
658: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
659: </div>
1.453 bisitz 660: <hr />
1.406 albertel 661: <div class="LC_edit_problem_header_randomize_row">
662: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
663: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 664: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 665: $rndseed.'"
666: onchange="javascript:document.lonhomework.changerandseed.click()" />';
667:
668: if (!$Apache::lonhomework::parsing_a_task) {
669: my $numtoanalyze=$env{'form.numtoanalyze'};
670: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 671: $result .= '<span class="LC_nobreak">'.
672: &mt('[_1] for [_2] versions.',
1.416 raeburn 673: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 674: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
675: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 676: $numtoanalyze.'" size="5" />').
677: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
678: '</span>';
679:
1.313 albertel 680: }
1.406 albertel 681:
682: $result.='
683: </div>
1.453 bisitz 684: <hr />
1.447 bisitz 685: <div>';
1.416 raeburn 686: $result.='<input type="hidden" name="problemmode" value="view" />';
687: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
688: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
689: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
690: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 691: $result.='
692: </div>
1.453 bisitz 693: <hr />
1.409 albertel 694: '.&Apache::lonxml::message_location().'
1.406 albertel 695: </div>';
1.159 albertel 696: return $result;
1.48 albertel 697: }
698:
1.65 albertel 699: sub initialize_storage {
1.357 albertel 700: my ($given_symb) = @_;
1.353 albertel 701: undef(%Apache::lonhomework::results);
702: undef(%Apache::lonhomework::history);
1.357 albertel 703: my ($symb,$courseid,$domain,$name) =
1.367 albertel 704: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 705:
706: # anonymous users (CODEd exams) have no data
707: if ($name eq 'anonymous'
708: && !defined($domain)) {
709: return;
710: }
711:
1.333 albertel 712: if ($env{'request.state'} eq 'construct'
713: || $symb eq ''
714: || $Apache::lonhomework::type eq 'practice') {
715:
716: my $namespace = $symb || $env{'request.uri'};
717: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 718: ($env{'form.resetdata'} eq &mt('New Problem Variation')
719: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 720: $env{'form.newrandomization'} eq &mt('New Randomization')) {
721: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
722: &Apache::lonxml::debug("Attempt reset");
723: }
1.159 albertel 724: %Apache::lonhomework::history=
1.333 albertel 725: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 726: my ($temp)=keys %Apache::lonhomework::history ;
727: &Apache::lonxml::debug("Return message of $temp");
728: } else {
729: %Apache::lonhomework::history=
730: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
731: }
1.353 albertel 732:
1.159 albertel 733: #ignore error conditions
1.67 albertel 734: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 735: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 736: }
737:
1.435 jms 738: =pod
739:
740: =item finalize_storage()
741:
742: Stores away the result has to a student's environment
743: checks form.grade_ for specific values, other wises stores
744: to the running users environment
745: Will increment totals for attempts, students, and corrects
746: if running user has student role.
747:
748: =cut
749:
750:
1.65 albertel 751: sub finalize_storage {
1.357 albertel 752: my ($given_symb) = @_;
1.159 albertel 753: my $result;
1.289 albertel 754: if (%Apache::lonhomework::results) {
1.323 albertel 755: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
756: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 757: my ($symb,$courseid,$domain,$name) =
1.367 albertel 758: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 759: if ($env{'request.state'} eq 'construct'
760: || $symb eq ''
761: || $Apache::lonhomework::type eq 'practice') {
762: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 763: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 764: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 765: $namespace,'',$domain,$name);
1.159 albertel 766: &Apache::lonxml::debug('Construct Store return message:'.$result);
767: } else {
768: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
769: $symb,$courseid,$domain,$name);
770: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 771: &store_aggregates($symb,$courseid);
1.159 albertel 772: }
1.323 albertel 773: } else {
774: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 775: }
1.159 albertel 776: return $result;
1.65 albertel 777: }
778:
1.435 jms 779: =pod
780:
781: item store_aggregates()
782:
783: Sends hash of values to be incremented in nohist_resourcetracker.db
784: for the course. Increments total number of attempts, unique students
785: and corrects for each part for an instance of a problem, as appropriate.
786:
787: =cut
788:
1.285 raeburn 789: sub store_aggregates {
790: my ($symb,$courseid) = @_;
1.479 raeburn 791: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 792: my @parts;
1.288 albertel 793: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
794: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 795: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 796: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 797: push(@parts, $1);
1.285 raeburn 798: }
799: }
1.286 albertel 800: foreach my $part (@parts) {
1.470 raeburn 801: if ($env{'request.role'} =~/^st/) {
802: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
803: eq 'APPROX_ANS' ||
804: $Apache::lonhomework::results{'resource.'.$part.'.award'}
805: eq 'EXACT_ANS') {
806: $aggregate{$symb."\0".$part."\0correct"} = 1;
807: }
808: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
809: $aggregate{$symb."\0".$part."\0users"} = 1;
810: } else {
811: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
812: if ($last_reset) {
813: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
814: $aggregate{$symb."\0".$part."\0users"} = 1;
815: }
816: }
817: }
818: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 819: }
1.470 raeburn 820: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 821: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
822: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
823: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
824: $randtrycounter{$symb."\0".$part} = 1;
825: } else {
826: $anoncounter{$symb."\0".$part} = 1;
827: }
1.470 raeburn 828: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
829: if ($needsrelease) {
830: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
831: if ($curr_required eq '') {
1.471 raeburn 832: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 833: } else {
834: my ($currmajor,$currminor) = split(/\./,$curr_required);
835: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
836: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 837: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 838: }
1.292 raeburn 839: }
840: }
1.285 raeburn 841: }
842: }
1.292 raeburn 843: if (keys (%aggregate) > 0) {
1.289 albertel 844: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 845: $cdomain,$cname);
846: }
1.472 raeburn 847: if (keys(%anoncounter) > 0) {
1.481 raeburn 848: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
849: $cdomain,$cname);
1.472 raeburn 850: }
1.479 raeburn 851: if (keys(%randtrycounter) > 0) {
1.481 raeburn 852: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
853: $cdomain,$cname);
1.479 raeburn 854: }
1.292 raeburn 855: }
1.289 albertel 856:
1.65 albertel 857: sub checkout_msg {
1.211 albertel 858: my %lt=&Apache::lonlocal::texthash(
859: 'resource'=>'The resource needs to be checked out',
860: '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.',
861: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
862: 'checkout'=>'Check out Exam for Viewing',
863: 'checkout?'=>'Check out Exam?');
1.352 albertel 864: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 865: return (<<ENDCHECKOUT);
1.211 albertel 866: <h2>$lt{'resource'}</h2>
867: <p>$lt{'id_expln'}</p>
1.449 bisitz 868: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 869: <form name="checkout" method="post" action="$uri">
1.91 albertel 870: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 871: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 872: </form>
873: ENDCHECKOUT
874: }
875:
1.252 albertel 876: sub firstaccess_msg {
1.253 albertel 877: my ($time,$symb)=@_;
1.414 albertel 878: my $result;
879: my @interval=&Apache::lonnet::EXT("resource.0.interval");
880: if ($interval[1] eq 'map') {
881: my ($map)=&Apache::lonnet::decode_symb($symb);
882: my $foldertitle=&Apache::lonnet::gettitle($map);
883:
884: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 885: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
886: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
887: ,$foldertitle,$time)."</h2>";
1.414 albertel 888: } elsif ($interval[1] eq 'course') {
889: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 890: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
891: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
892: ,$course,$time)."</h2>";
1.414 albertel 893: } else {
894: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 895: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
896: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
897: ,$title,$time)."</h2>";
1.414 albertel 898: }
1.352 albertel 899: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 900: my $buttontext = &mt('Show Resource');
901: my $timertext = &mt('Start Timer?');
1.414 albertel 902: $result .= (<<ENDCHECKOUT);
1.444 bisitz 903: <form name="markaccess" method="post" action="$uri">
1.252 albertel 904: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 905: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 906: </form>
907: ENDCHECKOUT
1.414 albertel 908: return $result;
1.252 albertel 909: }
910:
1.204 albertel 911: sub init_problem_globals {
912: my ($type)=@_;
913: #initialize globals
1.308 foxr 914: # For problems, we start out in part 0 (outside a <part> tag).
915: # and part 0 is used to describe the main body of the <problem>
916: #
1.204 albertel 917: if ($type eq 'problem') {
918: $Apache::inputtags::part='0';
919: @Apache::inputtags::partlist=('0');
1.405 albertel 920: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 921: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 922:
1.266 albertel 923: } elsif ($type eq 'library') {
1.204 albertel 924: $Apache::inputtags::part='';
925: @Apache::inputtags::partlist=();
1.405 albertel 926: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 927: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 928:
1.304 albertel 929: } elsif ($type eq 'Task') {
930: $Apache::inputtags::part='0';
931: @Apache::inputtags::partlist=('0');
1.405 albertel 932: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 933: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 934: }
1.477 www 935: @Apache::functionplotresponse::callscripts=();
1.204 albertel 936: @Apache::inputtags::responselist = ();
937: @Apache::inputtags::importlist = ();
938: @Apache::inputtags::previous=();
939: @Apache::inputtags::previous_version=();
940: $Apache::structuretags::printanswer='No';
941: @Apache::structuretags::whileconds=();
942: @Apache::structuretags::whilebody=();
943: @Apache::structuretags::whileline=();
944: $Apache::lonhomework::scantronmode=0;
945: undef($Apache::lonhomework::name);
1.358 albertel 946: undef($Apache::lonhomework::default_type);
947: undef($Apache::lonhomework::type);
1.204 albertel 948: }
949:
950: sub reset_problem_globals {
951: my ($type)=@_;
952: undef(%Apache::lonhomework::history);
953: undef(%Apache::lonhomework::results);
954: undef($Apache::inputtags::part);
1.208 albertel 955: #don't undef this, lonhomework.pm takes care of this, we use this to
956: #detect if we try to do 2 problems in one file
957: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 958: undef($Apache::lonhomework::name);
1.358 albertel 959: undef($Apache::lonhomework::default_type);
960: undef($Apache::lonhomework::type);
961: undef($Apache::lonhomework::scantronmode);
962: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 963: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 964: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 965: }
966:
1.241 albertel 967: sub set_problem_state {
1.240 albertel 968: my ($part)=@_;
1.284 albertel 969: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 970: $Apache::lonhomework::history{"resource.$part.solved"}=
971: 'correct_by_student';
972: }
973: }
974:
1.241 albertel 975: sub get_problem_status {
976: my ($part)=@_;
1.267 albertel 977: my $problem_status;
1.284 albertel 978: if ($env{'request.state'} eq 'construct' &&
979: defined($env{'form.problemstatus'})) {
980: $problem_status=$env{'form.problemstatus'};
1.267 albertel 981: } else {
982: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
983: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 984: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 985: }
986: return $problem_status;
987: }
988:
1.9 albertel 989: sub start_problem {
1.326 albertel 990: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 991:
1.311 foxr 992: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 993: if (!$Apache::lonxml::metamode) {
994: &Apache::lonxml::startredirection();
995: }
1.311 foxr 996:
1.308 foxr 997: # Problems don't nest and we don't allow more than one <problem> in
998: # a .problem file.
999: #
1.184 albertel 1000: if ( $Apache::inputtags::part ne '' ||
1001: $Apache::lonhomework::parsing_a_problem) {
1002: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1003: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1004: return '';
1005: }
1.184 albertel 1006:
1007: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1008: &init_problem_globals('problem');
1.166 albertel 1009:
1.284 albertel 1010: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1011: $Apache::lonhomework::scantronmode=1;
1012: }
1.161 albertel 1013:
1.159 albertel 1014: if ($target ne 'analyze') {
1.415 raeburn 1015: my $type = &Apache::lonnet::EXT('resource.0.type');
1016: $Apache::lonhomework::type=$type;
1.284 albertel 1017: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1018: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1019: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1020: }
1.332 albertel 1021: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1022: }
1.164 albertel 1023: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1024: my $uri=$env{'request.uri'};
1.159 albertel 1025: if ($uri=~/\.(\w+)$/) {
1026: $Apache::lonhomework::type=$1;
1027: &Apache::lonxml::debug("Using type of $1");
1028: } else {
1029: $Apache::lonhomework::type='problem';
1030: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1031: }
1.87 albertel 1032: }
1.301 albertel 1033: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1034:
1.363 albertel 1035: &initialize_storage();
1.389 albertel 1036: if ($target ne 'analyze'
1037: && $env{'request.state'} eq 'construct') {
1038: &set_problem_state('0');
1039: }
1040:
1.366 albertel 1041: if ($target eq 'web') {
1042: &Apache::lonxml::debug(" grading history ");
1043: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1044: }
1.363 albertel 1045:
1.159 albertel 1046: #added vars to the scripting enviroment
1.213 albertel 1047: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1048: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1049: &Apache::run::run($expression,$safeeval);
1.159 albertel 1050: my $status;
1051: my $accessmsg;
1052:
1.343 albertel 1053: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1054: my ($result,$form_tag_start);
1.354 albertel 1055: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1056: || $target eq 'edit') {
1.350 albertel 1057: ($result,$form_tag_start) =
1058: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1059: $name);
1060: }
1061:
1.284 albertel 1062: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1063:
1.479 raeburn 1064: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1065: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1066: $target eq 'tex') {
1.284 albertel 1067: if ($env{'form.markaccess'}) {
1.414 albertel 1068: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1069: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1070: }
1.479 raeburn 1071:
1072: ($status,$accessmsg,my $slot_name,my $slot) =
1073: &Apache::lonhomework::check_slot_access('0','problem');
1074: push (@Apache::inputtags::status,$status);
1075:
1.159 albertel 1076: #handle rand seed in construction space
1.479 raeburn 1077: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1078: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1079:
1.333 albertel 1080: if ($env{'request.state'} ne "construct" &&
1081: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1082: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1083: $rndseed.'" />'.
1084: '<input type="submit" name="resetdata"
1085: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1086: if (exists($env{'form.username'})) {
1087: $form_tag_start.=
1.164 albertel 1088: '<input type="hidden" name="username"
1.284 albertel 1089: value="'.$env{'form.username'}.'" />';
1.334 albertel 1090: }
1.462 raeburn 1091: if ($env{'request.role.adv'}) {
1092: $form_tag_start.= ' <label class="LC_nobreak">'
1093: .'<input type="checkbox" name="showallfoils"';
1094: if (defined($env{'form.showallfoils'})) {
1095: $form_tag_start.=' checked="checked"';
1096: }
1097: $form_tag_start.= ' /> '
1098: .&mt('Show All Foils')
1099: .'</label>';
1100: }
1.417 www 1101: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1102: $form_tag_start.=&practice_problem_header();
1.417 www 1103: }
1.462 raeburn 1104: $form_tag_start.='<hr />';
1.479 raeburn 1105: } elsif (($env{'request.state'} ne "construct") &&
1106: ($Apache::lonhomework::type eq 'randomizetry') &&
1107: ($status eq 'CAN_ANSWER')) {
1108: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1109: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1110: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1111: }
1.324 albertel 1112:
1.159 albertel 1113: my $expression='$external::datestatus="'.$status.'";';
1114: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1115: &Apache::run::run($expression,$safeeval);
1116: &Apache::lonxml::debug("Got $status");
1.324 albertel 1117:
1.159 albertel 1118: if (( $status eq 'CLOSED' ) ||
1119: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1120: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1121: ( $status eq 'BANNED') ||
1.216 albertel 1122: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1123: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1124: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1125: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1126: $style);
1.159 albertel 1127: if ( $target eq "web" ) {
1.343 albertel 1128: my $msg;
1.159 albertel 1129: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1130: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1131: } elsif ($status eq 'NOT_IN_A_SLOT') {
1132: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1133: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1134: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1135: }
1.216 albertel 1136: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1137: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1138: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1139: $msg.=&checkout_msg();
1.252 albertel 1140: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1141: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1142: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1143: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1144: }
1145: $result.=$msg.'<br />';
1146: } elsif ($target eq 'tex') {
1.332 albertel 1147: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1148: : '\begin{minipage}{\textwidth}';
1.443 foxr 1149: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1150: $startminipage.'\vskip 0 mm';
1.159 albertel 1151: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1152: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1153: } else {
1.211 albertel 1154: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1155: }
1156: }
1.324 albertel 1157: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1158: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1159: $style);
1.324 albertel 1160: if ($target eq 'web') {
1.375 albertel 1161: $result .=
1162: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1163: } elsif ($target eq 'grade') {
1164: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1165: 'problem');
1166: }
1.159 albertel 1167: } elsif ($target eq 'web') {
1.360 albertel 1168: if ($status eq 'CAN_ANSWER'
1169: && $slot_name ne ''
1170: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1171: # unproctored slot access, self checkin
1172: &Apache::bridgetask::check_in('problem',undef,undef,
1173: $slot_name);
1174: }
1.368 albertel 1175: $result.="\n $form_tag_start \t".
1.227 albertel 1176: '<input type="hidden" name="submitted" value="yes" />';
1177: # create a page header and exit
1.284 albertel 1178: if ($env{'request.state'} eq "construct") {
1179: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1180: if ($Apache::lonhomework::type eq 'practice') {
1181: $result.= '<input type="submit" name="resetdata" '.
1182: 'value="'.&mt('New Problem Variation').'" />'.
1183: &practice_problem_header().'<hr />';
1184: }
1.227 albertel 1185: }
1186: # if we are viewing someone else preserve that info
1.284 albertel 1187: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1188: foreach my $field ('symb','courseid','domain','username') {
1189: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1190: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1191: }
1.479 raeburn 1192: foreach my $field ('trial','questiontype') {
1193: if ($env{"form.grade_$field"} ne '') {
1194: $result .= '<input type="hidden" name="grade_'.$field.
1195: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1196: }
1197: }
1.159 albertel 1198: }
1.490 raeburn 1199: if ($env{'form.grade_imsexport'}) {
1200: $result = '';
1201: }
1.159 albertel 1202: } elsif ($target eq 'tex') {
1.319 foxr 1203: $result .= 'INSERTTEXFRONTMATTERHERE';
1204:
1.99 sakharuk 1205: }
1.159 albertel 1206: } elsif ($target eq 'edit') {
1.343 albertel 1207: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1208: $Apache::lonxml::warnings_error_header=
1209: &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 1210: my $temp=&Apache::edit::insertlist($target,$token);
1211: $result.=$temp;
1212: } elsif ($target eq 'modified') {
1213: $result=$token->[4];
1214: } else {
1215: # page_start returned a starting result, delete it if we don't need it
1216: $result = '';
1.99 sakharuk 1217: }
1.159 albertel 1218: return $result;
1.9 albertel 1219: }
1220:
1221: sub end_problem {
1.159 albertel 1222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1223: my $result;
1.310 foxr 1224:
1.321 albertel 1225: if (!$Apache::lonxml::metamode) {
1226: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1227: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1228: }
1.319 foxr 1229:
1230: if ($target eq 'tex') {
1.321 albertel 1231: # Figure out the front matter and replace the
1232: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1233: # this in end_problem because whether or not we display due
1234: # dates depends on whether due dates have already been
1235: # displayed in the problem parts.
1236:
1.319 foxr 1237: my $frontmatter = '';
1238: my $startminipage = '';
1239: if (not $env{'form.problem_split'}=~/yes/) {
1240: $startminipage = '\begin{minipage}{\textwidth}';
1241: }
1242: my $id = $Apache::inputtags::part;
1243: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1244: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1245: my @packages = split /,/,$packages;
1246: my $allow_print_points = 0;
1247: foreach my $partial_key (@packages) {
1248: if ($partial_key=~m/^part_0$/) {
1249: $allow_print_points=1;
1250: }
1251: }
1252: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1253: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1254: if (lc($env{'course.'.$env{'request.course.id'}.
1255: '.disableexampointprint'}) eq 'yes') {
1256: $allow_print_points=0;
1257: }
1258: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1259: 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 1260: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1261: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1262:
1263: # Figure out what the due date is and if we need to print
1264: # it in the problem header. We have been logging the
1265: # last due date written to file.
1266:
1267: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1268: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1269: my $duedate_text = &mt('Due date: [_1]'
1270: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1271: my $temp_file;
1272: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1273:
1274: # Figure out what the last printed due date is or set it
1275: # to the epoch if no duedates have been printed.
1276:
1277: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1278: if (-e $filename) {
1279: $temp_file = Apache::File->new($filename);
1280: my @due_file = <$temp_file>;
1281: $due_file_content = $due_file[$#due_file];
1282: chomp $due_file_content;
1283: }
1284:
1285: # We display the due date iff it is not the same as the last
1286: # duedate in problem header ($due_file_content), and
1287: # none of our parts displayed a duedate.
1288: #
1289: my $parts_with_displayduedate;
1290: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1291: $parts_with_displayduedate =
1292: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1293: } else {
1294: $parts_with_displayduedate = 0;
1295: }
1296: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1297: $temp_file = Apache::File->new('>'.$filename);
1298: print $temp_file "$duetime\n";
1299: if (not $env{'request.symb'} =~ m/\.page_/) {
1300: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1301: $frontmatter .= $begin_doc.
1.448 bisitz 1302: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1303: } else {
1304: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1305: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1306: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1307: }
1.319 foxr 1308: }
1309: } else {
1.448 bisitz 1310: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1311: }
1312: } else {
1313: if (not $env{'request.symb'} =~ m/\.page_/) {
1314: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1315: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1316: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1317: }
1.319 foxr 1318: } else {
1.381 albertel 1319: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1320: }
1321: }
1322: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1323: }
1324:
1.159 albertel 1325: my $status=$Apache::inputtags::status['-1'];
1326: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1327: $target eq 'tex') {
1.249 albertel 1328: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1329: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1330: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1331: &Apache::inputtags::grade;
1.324 albertel 1332: } elsif ($status eq 'NEEDS_CHECKIN') {
1333: # no need to grade, and don't want to hide data
1.249 albertel 1334: } else {
1335: # move any submission data to .hidden
1336: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1337: }
1.159 albertel 1338: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1339: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1340: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1341: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1342: # if part is zero, no <part>s existed, so we need show the current
1343: # grading status
1344: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1345: $result.= $gradestatus;
1346: }
1347: if (
1.284 albertel 1348: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1349: ($target eq 'answer') || ($target eq 'tex')
1350: ) {
1.490 raeburn 1351: if (($target ne 'tex') &&
1352: ($env{'form.answer_output_mode'} ne 'tex') &&
1353: (!$env{'form.grade_imsexport'})) {
1.254 www 1354: $result.="</form>";
1.159 albertel 1355: }
1356: if ($target eq 'web') {
1.346 albertel 1357: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1358: } elsif ($target eq 'tex') {
1.178 sakharuk 1359: my $endminipage = '';
1.284 albertel 1360: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1361: $endminipage = '\end{minipage}';
1362: }
1.284 albertel 1363: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1364: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1365: } else {
1.262 sakharuk 1366: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1367: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1368: $result .= $endminipage.'\end{document} ';
1369: } else {
1.382 albertel 1370: $result .= $endminipage;
1.262 sakharuk 1371: }
1.159 albertel 1372: }
1373: }
1374: }
1.476 www 1375: if ($target eq 'web') {
1376: $result.=&Apache::functionplotresponse::init_script();
1377: }
1.159 albertel 1378: if ($target eq 'grade') {
1379: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1380: &finalize_storage();
1381: }
1.284 albertel 1382: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1383: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1384: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1385: # normally we get it from above, but in CSTR
1.172 albertel 1386: # we always show answer mode too.
1.159 albertel 1387: }
1388: } elsif ($target eq 'meta') {
1389: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1390: @Apache::inputtags::response=();
1.159 albertel 1391: $result=&Apache::response::mandatory_part_meta;
1392: }
1.215 albertel 1393: $result.=&Apache::response::meta_part_order();
1.258 albertel 1394: $result.=&Apache::response::meta_response_order();
1.159 albertel 1395: } elsif ($target eq 'edit') {
1396: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1397: $result .= &problem_edit_footer();
1.320 albertel 1398: } elsif ($target eq 'modified') {
1399: $result .= $token->[2];
1.159 albertel 1400: }
1.155 albertel 1401:
1.284 albertel 1402: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1403: &Apache::inputtags::check_for_duplicate_ids();
1404: }
1.204 albertel 1405:
1406: &reset_problem_globals('problem');
1.159 albertel 1407:
1408: return $result;
1.48 albertel 1409: }
1410:
1.108 albertel 1411:
1.48 albertel 1412: sub start_library {
1.159 albertel 1413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1414: my ($result,$form_tag_start);
1.371 albertel 1415: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1416: &init_problem_globals('library');
1417: $Apache::lonhomework::type='problem';
1418: }
1.159 albertel 1419: if ($target eq 'edit') {
1.343 albertel 1420: ($result,$form_tag_start)=
1421: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1422: 'Edit');
1423: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1424: my $temp=&Apache::edit::insertlist($target,$token);
1425: $result.=$temp;
1426: } elsif ($target eq 'modified') {
1427: $result=$token->[4];
1.340 albertel 1428: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1429: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1430: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1431: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1432: ($result,$form_tag_start)=
1433: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1434: $name);
1.479 raeburn 1435: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1436: $result.=" \n $form_tag_start".
1.159 albertel 1437: '<input type="hidden" name="submitted" value="yes" />';
1438: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1439: if ($Apache::lonhomework::type eq 'practice') {
1440: $result.= '<input type="submit" name="resetdata" '.
1441: 'value="'.&mt('New Problem Variation').'" />'.
1442: &practice_problem_header().'<hr />';
1443: }
1.159 albertel 1444: }
1445: return $result;
1.48 albertel 1446: }
1447:
1448: sub end_library {
1.159 albertel 1449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1450: my $result='';
1451: if ($target eq 'edit') {
1452: $result=&problem_edit_footer();
1.371 albertel 1453: } elsif ($target eq 'web'
1454: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1455: && $env{'request.state'} eq "construct") {
1.349 albertel 1456: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1457: }
1.371 albertel 1458: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1459: &reset_problem_globals('library');
1460: }
1.159 albertel 1461: return $result;
1.197 www 1462: }
1463:
1464: sub start_definetag {
1.326 albertel 1465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1466:
1467: my $result;
1468:
1469: my $name = $token->[2]->{'name'};
1.326 albertel 1470: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1471: if ($target eq 'web') {
1472: if ($name=~/^\//) {
1473: $result=
1474: '<br /><table class="LC_sty_end"><tr><th>'.
1475: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1476: } else {
1477: $result=
1478: '<br /><table class="LC_sty_begin"><tr><th>'.
1479: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1480: }
1481: $skip = &HTML::Entities::encode($skip, '<>&"');
1482: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1483: }
1484: return $result;
1485: }
1486:
1487: sub end_definetag {
1488: return '';
1.1 albertel 1489: }
1490:
1491: sub start_block {
1.201 albertel 1492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1493:
1494: my $result;
1.1 albertel 1495:
1.339 albertel 1496: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1497: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1498: my $code = $token->[2]->{'condition'};
1.385 albertel 1499: if (defined($code) && $code ne '') {
1.137 albertel 1500: if (!$Apache::lonxml::default_homework_loaded) {
1501: &Apache::lonxml::default_homework_load($safeeval);
1502: }
1.131 albertel 1503: $result = &Apache::run::run($code,$safeeval);
1504: &Apache::lonxml::debug("block :$code: returned :$result:");
1505: } else {
1506: $result='1';
1507: }
1508: if ( ! $result ) {
1.201 albertel 1509: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1510: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1511: }
1512: $result='';
1513: } elsif ($target eq 'edit') {
1514: $result .=&Apache::edit::tag_start($target,$token);
1515: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1516: $token,40);
1517: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1518: } elsif ($target eq 'modified') {
1519: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1520: $safeeval,'condition');
1521: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1522: }
1.131 albertel 1523: return $result;
1.1 albertel 1524: }
1525:
1526: sub end_block {
1.167 www 1527: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1528: my $result;
1529: if ($target eq "edit") {
1530: $result.= &Apache::edit::tag_end($target,$token,'');
1531: }
1532: return $result;
1533: }
1534:
1535: sub start_languageblock {
1.201 albertel 1536: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1537:
1538: my $result;
1539:
1.339 albertel 1540: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1541: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1542: my $include = $token->[2]->{'include'};
1543: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1544: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1545: # This should not even happen, since we should at least have the server language
1.398 www 1546: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1547: # Now loop over all languages in order of preference
1548: foreach my $preferred_language (@preferred_languages) {
1.394 www 1549: # If the languageblock has no arguments, show the contents
1.399 www 1550: $result=1;
1551: my $found=0;
1.394 www 1552: # Do we have an include argument?
1.398 www 1553: if ($include) {
1.394 www 1554: # If include is specified, by default, don't render the block
1.399 www 1555: $result=0;
1.398 www 1556: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1557: # ... but if my preferred language is included, render it
1.398 www 1558: if ($included_language eq $preferred_language) {
1.399 www 1559: $result=1;
1560: $found=1;
1.398 www 1561: }
1562: }
1563: }
1.394 www 1564: # Do we have an exclude argument?
1.398 www 1565: if ($exclude) {
1.399 www 1566: $result=1;
1.398 www 1567: foreach my $excluded_language (split(/\,/,$exclude)) {
1568: if ($excluded_language eq $preferred_language) {
1.399 www 1569: $result=0;
1570: $found=1;
1.398 www 1571: }
1572: }
1573: }
1.399 www 1574: if ($found) { last; }
1.398 www 1575: }
1.201 albertel 1576: if ( ! $result ) {
1577: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1578: $style);
1579: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1580: }
1581: $result='';
1.167 www 1582: } elsif ($target eq 'edit') {
1583: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1584: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1585: $token,40);
1.211 albertel 1586: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1587: $token,40);
1588: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1589: } elsif ($target eq 'modified') {
1590: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1591: $safeeval,'include',
1592: 'exclude');
1.167 www 1593: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1594: }
1595: return $result;
1596: }
1597:
1598: sub end_languageblock {
1.170 www 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1600: my $result;
1.201 albertel 1601: if ($target eq "edit") {
1.170 www 1602: $result.= &Apache::edit::tag_end($target,$token,'');
1603: }
1604: return $result;
1605: }
1606:
1.397 albertel 1607: {
1608: my %available_texts;
1609: sub start_translated {
1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1611: &Apache::lonxml::register('Apache::structuretags',('lang'));
1612: undef(%available_texts);
1613: }
1614:
1615: sub end_translated {
1616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1617: my $result;
1618: #show the translation on viewable targets
1619: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1620: # or non-viewable targets, if it's embedded in something that
1621: # wants the output
1622: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1623: && &Apache::lonxml::in_redirection() ) ) {
1624: my @possibilities = keys(%available_texts);
1625: my $which =
1626: &Apache::loncommon::languages(\@possibilities) || 'default';
1627: $result = $available_texts{$which};
1628: }
1629: undef(%available_texts);
1630: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1631: return $result;
1632: }
1633:
1634:
1635: sub start_lang {
1636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1637: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1638: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1639: &Apache::lonxml::startredirection();
1640: }
1641: return '';
1642: }
1643:
1644: sub end_lang {
1645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1646: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1647: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1648: my $result = &Apache::lonxml::endredirection();
1649: my $which = &Apache::lonxml::get_param('which',$parstack,
1650: $safeeval);
1.431 raeburn 1651: if ($which=~/\w/) {
1652: $available_texts{$which} = $result;
1653: }
1654: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1655: $safeeval);
1656: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1657: if ($language=~/\w/) {
1658: $available_texts{$language} = $result;
1659: }
1.427 bisitz 1660: }
1661:
1.397 albertel 1662: }
1663: return '';
1664: }
1665: }
1666:
1.170 www 1667: sub start_instructorcomment {
1.201 albertel 1668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1669:
1670: my $result;
1671:
1.339 albertel 1672: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1673: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1674: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1675: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1676: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1677: $parser,$style);
1.170 www 1678: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1679: }
1680: $result='';
1681: } elsif ($target eq 'edit') {
1682: $result .=&Apache::edit::tag_start($target,$token);
1683: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1684: }
1685: return $result;
1686: }
1687:
1688: sub end_instructorcomment {
1.159 albertel 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1690: my $result;
1691: if ($target eq "edit") {
1692: $result.= &Apache::edit::tag_end($target,$token,'');
1693: }
1694: return $result;
1.4 tsai 1695: }
1696:
1697: sub start_while {
1.326 albertel 1698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1699:
1.160 albertel 1700: my $result;
1.339 albertel 1701: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1702: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1703: my $code = $token->[2]->{'condition'};
1.4 tsai 1704:
1.160 albertel 1705: push( @Apache::structuretags::whileconds, $code);
1706: if (!$Apache::lonxml::default_homework_loaded) {
1707: &Apache::lonxml::default_homework_load($safeeval);
1708: }
1709: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1710: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1711: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1712: push( @Apache::structuretags::whileline, $token->[5]);
1713: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1714: if ( $result ) {
1715: &Apache::lonxml::newparser($parser,\$bodytext);
1716: }
1717: } elsif ($target eq 'edit') {
1718: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1719: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1720: $token,40);
1721: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1722: } elsif ($target eq 'modified') {
1723: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1724: $safeeval,'condition');
1725: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1726: }
1.160 albertel 1727: return $result;
1.4 tsai 1728: }
1729:
1730: sub end_while {
1.159 albertel 1731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1732: my $result;
1733:
1.339 albertel 1734: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1735: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1736: my $code = pop(@Apache::structuretags::whileconds);
1737: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1738: my $line = pop(@Apache::structuretags::whileline);
1739: my $return = &Apache::run::run($code,$safeeval);
1740: my $starttime=time;
1741: my $error=0;
1742: while ($return) {
1743: if (time-$starttime >
1744: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1745: $return = 0; $error=1; next;
1.161 albertel 1746: }
1747: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1748: if ($target eq 'grade' || $target eq 'answer' ||
1749: $target eq 'analyze') {
1750: # grade/answer/analyze should produce no output but if we
1751: # are redirecting, the redirecter should know what to do
1752: # with the output
1753: if (!$Apache::lonxml::redirection) { undef($result); }
1754: }
1.161 albertel 1755: $return = &Apache::run::run($code,$safeeval);
1756: }
1757: if ($error) {
1.430 bisitz 1758: &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 1759: }
1760: } elsif ($target eq "edit") {
1761: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1762: }
1.160 albertel 1763: return $result;
1.1 albertel 1764: }
1.6 tsai 1765:
1.160 albertel 1766: # <randomlist show="1">
1.6 tsai 1767: # <tag1>..</tag1>
1768: # <tag2>..</tag2>
1769: # <tag3>..</tag3>
1.160 albertel 1770: # ...
1.6 tsai 1771: # </randomlist>
1772: sub start_randomlist {
1.326 albertel 1773: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1774: my $result;
1.339 albertel 1775: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1776: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1777: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1778: my $b_parser= HTML::LCParser->new(\$body);
1779: $b_parser->xml_mode(1);
1780: $b_parser->marked_sections(1);
1.159 albertel 1781: my $b_tok;
1782: my @randomlist;
1783: my $list_item;
1784: while($b_tok = $b_parser->get_token() ) {
1785: if($b_tok->[0] eq 'S') { # start tag
1786: # get content of the tag until matching end tag
1787: # get all text upto the matching tag
1788: # and push the content into @randomlist
1789: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1790: $b_parser);
1791: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1792: push(@randomlist,$list_item);
1793: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1794: # $list_item</b>";
1795: }
1796: if($b_tok->[0] eq 'T') { # text
1797: # what to do with text in between tags?
1798: # print "<b>TEXT $b_tok->[1]</b><br />";
1799: }
1800: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1801: # print "<b>END-TAG $b_tok->[1]</b><br />";
1802: # }
1803: }
1.303 albertel 1804: if (@randomlist) {
1805: my @idx_arr = (0 .. $#randomlist);
1806: &Apache::structuretags::shuffle(\@idx_arr);
1807: my $bodytext = '';
1808: my $show=$#randomlist;
1809: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1810: $showarg--;
1811: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1812: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1813: my @currlist;
1814: my $part = $Apache::inputtags::part;
1815: if ($part ne '') {
1816: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1817: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1818: if (!(grep(/^\Q$part\E$/,@currlist))) {
1819: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1820: }
1821: } else {
1822: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1823: }
1824: }
1825: }
1.303 albertel 1826: for(0 .. $show) {
1827: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1828: }
1829: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1830: }
1831: } elsif ($target eq 'edit' ) {
1832: $result .=&Apache::edit::tag_start($target,$token);
1833: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1834: $token,5);
1835: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1836: } elsif ($target eq 'modified' ) {
1837: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1838: $safeeval,'show');
1839: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1840: }
1841: return $result;
1.7 tsai 1842: }
1843:
1844: sub shuffle {
1845: my $a=shift;
1846: my $i;
1.303 albertel 1847: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1848: &Apache::response::pushrandomnumber();
1.159 albertel 1849: for($i=@$a;--$i;) {
1850: my $j=int(&Math::Random::random_uniform() * ($i+1));
1851: next if $i == $j;
1852: @$a[$i,$j] = @$a[$j,$i];
1853: }
1.251 albertel 1854: &Apache::response::poprandomnumber();
1.7 tsai 1855: }
1.6 tsai 1856: }
1857:
1858: sub end_randomlist {
1.159 albertel 1859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1860: my $result;
1861: if ($target eq 'edit' ) {
1862: $result=&Apache::edit::tag_end($target,$token,
1863: 'End Randomly Parsed Block');
1864: }
1865: return $result;
1.6 tsai 1866: }
1867:
1.283 albertel 1868: sub ordered_show_check {
1869: my $last_part=$Apache::inputtags::partlist[-2];
1870: my $in_order=
1871: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1872: my $in_order_show=1;
1873: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1874: $in_order_show=&Apache::response::check_status($last_part);
1875: }
1876: return $in_order_show;
1877: }
1878:
1.469 www 1879:
1880: sub start_startpartmarker {
1881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1882: my $result='';
1883: if ($target eq 'edit') {
1884: $result=&Apache::edit::tag_start($target,$token);
1885: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1886: $result.=&Apache::edit::end_table();
1887:
1888: }
1889: return $result;
1890: }
1891:
1892: sub end_startpartmarker {
1893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1894: my @result;
1895: if ($target eq 'edit') { $result[1]='no'; }
1896: return @result;
1897: }
1898:
1899: sub start_endpartmarker {
1900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1901: my $result='';
1902: if ($target eq 'edit') {
1903: $result=&Apache::edit::tag_start($target,$token);
1904: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1905: $result.=&Apache::edit::end_table();
1906:
1907: }
1908: return $result;
1909: }
1910:
1911: sub end_endpartmarker {
1912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1913: my @result;
1914: if ($target eq 'edit') { $result[1]='no'; }
1915: return @result;
1916: }
1917:
1918:
1919:
1920:
1921:
1.11 albertel 1922: sub start_part {
1.326 albertel 1923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1924: if (!$Apache::lonxml::metamode) {
1925: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1926: # duedates.
1927: }
1.159 albertel 1928: my $result='';
1.386 albertel 1929: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1930: $Apache::inputtags::part=$id;
1.177 albertel 1931: push(@Apache::inputtags::partlist,$id);
1932: @Apache::inputtags::response=();
1.159 albertel 1933: @Apache::inputtags::previous=();
1934: @Apache::inputtags::previous_version=();
1.405 albertel 1935: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1936: &Apache::response::reset_params();
1937:
1.159 albertel 1938: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1939: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1940: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1941: my $in_order_show=&ordered_show_check();
1.214 albertel 1942: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1943: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1944: &Apache::run::run($expression,$safeeval);
1.159 albertel 1945:
1946: if ($target eq 'meta') {
1.224 www 1947: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1948: return &Apache::response::mandatory_part_meta.
1949: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1950: } elsif ($target eq 'web' || $target eq 'grade' ||
1951: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1952: if ($hidden || !$in_order_show) {
1.326 albertel 1953: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1954: } else {
1955: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1956: push (@Apache::inputtags::status,$status);
1957: my $expression='$external::datestatus="'.$status.'";';
1958: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1959: &Apache::run::run($expression,$safeeval);
1.284 albertel 1960: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1961: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1962: }
1.216 albertel 1963: if (( $status eq 'CLOSED' ) ||
1964: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1965: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1966: ( $status eq 'BANNED') ||
1967: ( $status eq 'UNAVAILABLE') ||
1968: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1969: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1970: $style);
1.159 albertel 1971: if ( $target eq "web" ) {
1.211 albertel 1972: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1973: } elsif ( $target eq 'tex' ) {
1.284 albertel 1974: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1975: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1976: } else {
1.211 albertel 1977: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1978: }
1.159 albertel 1979: }
1980: } else {
1981: if ($target eq 'tex') {
1.284 albertel 1982: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1983: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1984: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1985: } else {
1986: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1987: }
1.195 sakharuk 1988: }
1.159 albertel 1989: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1990: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1991: my @allkeys = split /,/,$allkeys;
1992: my $allow_print_points = 0;
1993: foreach my $partial_key (@allkeys) {
1.230 albertel 1994: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1995: if ($1 ne '0') {$allow_print_points=1;}
1996: }
1997: }
1.275 albertel 1998: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1999: if (defined($maxtries) && $maxtries < 0) {
2000: $allow_print_points=0;
2001: }
1.302 albertel 2002: if (lc($env{'course.'.$env{'request.course.id'}.
2003: '.disableexampointprint'}) eq 'yes') {
2004: $allow_print_points=0;
2005: }
1.463 foxr 2006: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2007: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2008:
2009: }
1.233 www 2010: } elsif ($target eq 'web') {
1.479 raeburn 2011: if ($status eq 'CAN_ANSWER') {
2012: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2013: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2014: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2015: my $num = scalar(@Apache::inputtags::partlist)-1;
2016: if ($probrandomize eq 'randomizetry') {
2017: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2018: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2019: } else {
2020: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2021: if ($probrandtries ne $reqtries) {
2022: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2023: }
2024: }
2025: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2026: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2027: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2028: }
2029: }
1.475 raeburn 2030: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2031: }
2032: }
2033: }
2034: } elsif ($target eq 'edit') {
2035: $result.=&Apache::edit::tag_start($target,$token);
2036: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2037: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2038: ' '.
2039: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2040: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2041: } elsif ($target eq 'modified') {
2042: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2043: $safeeval,'id','display');
1.159 albertel 2044: if ($constructtag) {
1.225 albertel 2045: #limiting ids to only letters numbers, and space
1.224 www 2046: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2047: $result = &Apache::edit::rebuild_tag($token);
2048: }
2049: }
2050: return $result;
1.11 albertel 2051: }
2052:
2053: sub end_part {
1.159 albertel 2054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2055: &Apache::lonxml::debug("in end_part $target ");
2056: my $status=$Apache::inputtags::status['-1'];
2057: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2058: my $in_order_show=&ordered_show_check();
1.321 albertel 2059: my $result;
2060: if (!$Apache::lonxml::metamode) {
2061: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2062: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2063: }
1.312 albertel 2064: if ($target eq 'grade') {
1.249 albertel 2065: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2066: !$hidden && $in_order_show) {
1.311 foxr 2067: $result.=&Apache::inputtags::grade;
1.249 albertel 2068: } else {
2069: # move any submission data to .hidden
2070: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2071: }
1.283 albertel 2072: } elsif (($target eq 'web' || $target eq 'tex') &&
2073: !$hidden && $in_order_show) {
1.159 albertel 2074: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2075: $target);
1.490 raeburn 2076: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2077: ($env{'form.grade_imsexport'})) {
1.212 albertel 2078: $gradestatus='';
2079: }
1.311 foxr 2080: $result.=$gradestatus;
1.265 sakharuk 2081: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2082: } elsif ($target eq 'edit') {
1.311 foxr 2083: $result.=&Apache::edit::end_table();
1.322 albertel 2084: } elsif ($target eq 'modified') {
2085: $result .= $token->[2];
1.159 albertel 2086: }
2087: pop @Apache::inputtags::status;
2088: $Apache::inputtags::part='';
1.295 albertel 2089: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2090: return $result;
1.11 albertel 2091: }
1.1 albertel 2092:
1.25 albertel 2093: sub start_preduedate {
1.326 albertel 2094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2095: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2096: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2097: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2098: if (!$Apache::lonhomework::scantronmode &&
2099: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2100: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2101: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2102: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2103: }
1.24 albertel 2104: }
1.159 albertel 2105: return '';
1.24 albertel 2106: }
2107:
1.25 albertel 2108: sub end_preduedate {
1.159 albertel 2109: return '';
1.24 albertel 2110: }
2111:
1.369 foxr 2112: # In all the modes where <postanswerdate> text is
2113: # displayable, all we do is eat up the text between the start/stop
2114: # tags if the conditions are not right to display it.
1.25 albertel 2115: sub start_postanswerdate {
1.326 albertel 2116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2117: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2118: &Apache::lonnet::allowed('pav',
2119: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2120: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2121: $target eq 'tex' ) {
1.300 albertel 2122: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2123: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2124: (($target eq 'tex') && !$pav)) {
1.326 albertel 2125: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2126: }
2127: }
2128: return '';
1.24 albertel 2129: }
2130:
1.25 albertel 2131: sub end_postanswerdate {
1.159 albertel 2132: return '';
1.24 albertel 2133: }
2134:
1.25 albertel 2135: sub start_notsolved {
1.326 albertel 2136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2137: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2138: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2139: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2140: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2141: if ($gradestatus =~ /^correct/ &&
2142: &Apache::response::show_answer()) {
1.159 albertel 2143: &Apache::lonxml::debug("skipping");
1.326 albertel 2144: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2145: }
1.24 albertel 2146: }
1.159 albertel 2147: return '';
1.24 albertel 2148: }
2149:
1.25 albertel 2150: sub end_notsolved {
1.159 albertel 2151: return '';
1.24 albertel 2152: }
2153:
2154: sub start_solved {
1.326 albertel 2155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2156: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2157: $target eq 'tex') {
2158: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2159: if ($gradestatus !~ /^correct/ ||
2160: !&Apache::response::show_answer()) {
1.326 albertel 2161: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2162: }
1.24 albertel 2163: }
1.159 albertel 2164: return '';
1.24 albertel 2165: }
2166:
2167: sub end_solved {
1.248 albertel 2168: return '';
2169: }
2170:
2171: sub start_problemtype {
1.326 albertel 2172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2173: my $result;
1.339 albertel 2174: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2175: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2176: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2177: if (!defined($mode)) { $mode='show'; }
2178: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2179: my $found=0;
2180: foreach my $type (split(',',$for)) {
2181: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2182: }
2183: if ($mode eq 'show' && !$found) {
1.326 albertel 2184: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2185: }
2186: if ($mode eq 'hide' && $found) {
1.326 albertel 2187: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2188: }
2189: } elsif ($target eq 'edit') {
2190: $result .=&Apache::edit::tag_start($target,$token);
2191: $result.=&Apache::edit::select_arg('Mode:','mode',
2192: [['show','Show'],
2193: ['hide','Hide']]
2194: ,$token);
2195: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2196: [ ['exam','Exam/Quiz Problem'],
2197: ['survey','Survey'],
1.465 raeburn 2198: ['surveycred','Survey (with credit)'],
2199: ['anonsurvey','Anonymous Survey'],
2200: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2201: ['problem','Homework Problem'],
1.479 raeburn 2202: ['practice','Practice Problem'],
2203: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2204: ,$token);
2205: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2206: } elsif ($target eq 'modified') {
2207: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2208: $safeeval,'mode','for');
2209: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2210: }
2211: return $result;
2212: }
2213:
2214: sub end_problemtype {
1.159 albertel 2215: return '';
1.24 albertel 2216: }
1.34 albertel 2217:
2218: sub start_startouttext {
1.159 albertel 2219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2220: my @result=(''.'');
2221: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2222:
2223: my $nesting =
2224: &Apache::lonxml::set_state('outtext',
2225: &Apache::lonxml::get_state('outtext')+1);
2226: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2227: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2228: }
1.159 albertel 2229: return (@result);
1.34 albertel 2230: }
1.159 albertel 2231:
1.34 albertel 2232: sub end_startouttext {
1.326 albertel 2233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2234: my $result='';
2235: my $text='';
2236: if ($target eq 'edit') {
1.424 foxr 2237: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2238: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2239: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2240: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2241: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2242: .'</span></td>'
2243: .'<td align="left"><span id="math_'.$areaid.'" />'
2244: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2245: .'<span></td>'
2246: .'<td>'
2247: .&Apache::edit::insertlist($target,$token)
2248: .'</td>'
2249: .'<td align="right" valign="top">' .
2250: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2251: &Apache::edit::end_row().
1.362 albertel 2252: &Apache::edit::start_spanning_row()."\n".
1.255 www 2253: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2254: }
2255: if ($target eq 'modified') {
1.219 albertel 2256: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2257: }
2258: if ($target eq 'tex') {
2259: $result .= '\noindent ';
2260: }
2261: return $result;
1.34 albertel 2262: }
1.159 albertel 2263:
1.34 albertel 2264: sub start_endouttext {
1.159 albertel 2265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2266: my $result='';
2267: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2268: if ($target eq "modified") {
2269: $result='<endouttext />'.
1.377 albertel 2270: &Apache::edit::handle_insertafter('startouttext');
2271: }
1.404 albertel 2272:
2273: my $nesting =
2274: &Apache::lonxml::set_state('outtext',
2275: &Apache::lonxml::get_state('outtext')-1);
2276: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2277: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2278: &Apache::lonxml::set_state('outtext', 0);
2279: }
1.159 albertel 2280: return $result;
1.34 albertel 2281: }
1.159 albertel 2282:
1.34 albertel 2283: sub end_endouttext {
1.159 albertel 2284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2285: my @result=('','');
2286: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2287: return (@result);
1.34 albertel 2288: }
1.159 albertel 2289:
1.45 albertel 2290: sub delete_startouttext {
1.326 albertel 2291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2292: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2293: my $text=$$parser['-1']->get_text("/endouttext");
2294: my $ntoken=$$parser['-1']->get_token();
2295: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2296: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2297: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2298: # they did the last time round
2299: &Apache::lonxml::increasedepth($ntoken);
2300: &Apache::lonxml::decreasedepth($ntoken);
2301: return 1;
1.193 www 2302: }
2303:
2304: sub start_simpleeditbutton {
2305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2306: my $result='';
1.284 albertel 2307: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2308: ($target eq 'web') &&
1.330 albertel 2309: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2310: my $url=$env{'request.noversionuri'};
1.193 www 2311: $url=~s/\?.*$//;
1.367 albertel 2312: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2313: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2314: # $result='<p class="LC_warning">'
2315: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2316: # .&Apache::loncommon::help_open_topic('Caching')
2317: # .'</p>';
1.486 www 2318: $result.=&Apache::loncommon::head_subbox(
2319: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2320: .&Apache::lonhtmlcommon::add_item_funclist(
2321: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2322: .&mt('Edit').'</a>')
1.486 www 2323: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2324:
1.193 www 2325: }
2326: return $result;
2327: }
2328:
2329: sub end_simpleeditbutton {
2330: return '';
1.45 albertel 2331: }
1.34 albertel 2332:
1.428 raeburn 2333: sub practice_problem_header {
2334: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2335: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2336: '</span>';
2337: }
2338:
1.479 raeburn 2339: sub randomizetry_problem_header {
2340: my ($problemstatus,$reqtries) = @_;
2341: my ($header,$text);
2342: if ($reqtries > 1) {
2343: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2344: if (($problemstatus eq 'no') ||
2345: ($problemstatus eq 'no_feedback_ever')) {
2346: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2347: } else {
2348: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2349: }
2350: } else {
2351: $header = &mt('New Problem Variation Each Try');
2352: if (($problemstatus eq 'no') ||
2353: ($problemstatus eq 'no_feedback_ever')) {
2354: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2355:
2356: } else {
2357: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2358: }
2359: }
2360: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2361: '<span class="LC_info">'.$text.'</span><hr />';
2362: }
2363:
2364: sub randomizetry_part_header {
2365: my ($problemstatus,$reqtries,$num) = @_;
2366: my ($header,$text);
2367: if ($reqtries eq 'none') {
2368: $header = &mt('No Question Variation');
2369: $text = &mt('For this question there will no new variation after a try.');
2370: } elsif ($reqtries > 1) {
2371: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2372: if (($problemstatus eq 'no') ||
2373: ($problemstatus eq 'no_feedback_ever')) {
2374: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2375: } else {
2376: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2377: }
2378: } else {
2379: $header = &mt('New Question Variation For Each Try');
2380: if (($problemstatus eq 'no') ||
2381: ($problemstatus eq 'no_feedback_ever')) {
2382: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2383: } else {
2384: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2385: }
2386: }
2387: my $output;
2388: if ($num > 1) {
2389: $output .= '<hr />';
2390: }
2391: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2392: '<span class="LC_info">'.$text.'</span><br /><br />';
2393: return $output;
2394: }
2395:
1.1 albertel 2396: 1;
2397: __END__
1.435 jms 2398:
2399: =pod
2400:
2401: =back
2402:
2403: =cut
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