Annotation of loncom/homework/structuretags.pm, revision 1.497.2.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.497.2.4! foxr 4: # $Id: structuretags.pm,v 1.497.2.3 2011/12/12 12:07:45 foxr Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.469 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:
1.497.2.4! foxr 72:
! 73: #---------------------------------------------------------------------------------
! 74: #
! 75: # This section of code deals with hyphenation management.
! 76: # We must do three things:
! 77: # - keep track fo the desired languages to alter the header.
! 78: # - provide hyphenation selection as needed by each language that appears in the
! 79: # text.
! 80: # - Provide the header text needed to make available the desired hyphenations.
! 81: #
! 82: #
! 83:
! 84: # Hash whose keys are the languages encountered in the document/resource.
! 85: #
! 86:
! 87: my %languages_required;
! 88: ##
! 89: # Given a language selection as input returns a chunk of LaTeX that
! 90: # selects the required hyphenator.
! 91: #
! 92: # @param language - the language being selected.
! 93: # @return string
! 94: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
! 95: #
! 96: sub select_hyphenation {
! 97: my $language = shift;
! 98:
! 99: $language = &Apache::loncommon::latex_language($language); # Translate -> latex language.
! 100:
! 101: # If there is no latex language there's not much we can do:
! 102:
! 103: if ($language) {
! 104: &require_language($language);
! 105: my $babel_hyphenation = "\\select_language{$language}";
! 106:
! 107: return $babel_hyphenation;
! 108: } else {
! 109: return '';
! 110: }
! 111: }
! 112: ##
! 113: # Clears the set of languages required by the document being rendered.
! 114: #
! 115: sub clear_required_languages {
! 116: %languages_required = ();
! 117: }
! 118: ##
! 119: # Allows an external client of this module to register a need for a language:
! 120: #
! 121: # @param LaTeX language required:
! 122: #
! 123: sub require_language {
! 124: my $language = shift;
! 125:
! 126: $languages_required{$language} = 1;
! 127: }
! 128:
! 129: ##
! 130: # Provides the header for babel that indicates the languages
! 131: # the document requires.
! 132: # @return string
! 133: # @retval \usepackage[lang1,lang2...]{babel}
! 134: # @retval '' if there are no languages_required.
! 135: sub languages_header {
! 136:
! 137: my $header ='';
! 138: my @languages = keys(%languages_required);
! 139:
! 140: # Only generate the header if there are languages:
! 141:
! 142: if (scalar @languages) {
! 143: my $language_list = join(',', (@languages));
! 144: $header = '\usepackage['.$language_list."]{babel}\n";
! 145: }
! 146:
! 147: return $header;
! 148: }
! 149:
! 150: #----------------------------------------------------------------------------------
! 151:
1.10 albertel 152: sub start_web {
1.326 albertel 153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 154: if ($target ne 'edit' && $target ne 'modified') {
155: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
156: if ($target eq 'web' || $target eq 'webgrade') {
157: return $bodytext;
158: }
159: } elsif ($target eq "edit" ) {
160: my $bodytext =
161: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
162: my $result = &Apache::edit::tag_start($target,$token);
163: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
164: return $result;
165: } elsif ( $target eq "modified" ) {
166: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 167: }
168: return '';
1.10 albertel 169: }
170:
171: sub end_web {
1.44 ng 172: return '';
1.10 albertel 173: }
174:
175: sub start_tex {
1.326 albertel 176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 177: my $result='';
1.383 albertel 178: if ($target ne 'edit' && $target ne 'modified') {
179: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
180: if ($target eq 'tex') {
1.434 foxr 181:
182: # If inside a table, occurrences of \\ must be removed;
183: # else the table blows up.
184:
185: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
186: $bodytext =~ s/\\\\//g;
187: }
1.432 foxr 188: return $bodytext.'{}';
1.383 albertel 189: }
190: } elsif ($target eq "edit" ) {
191: my $bodytext =
192: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
193: my $result = &Apache::edit::tag_start($target,$token);
194: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
195: return $result;
196: } elsif ( $target eq "modified" ) {
197: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 198: }
1.198 sakharuk 199: return $result;;
1.10 albertel 200: }
201:
202: sub end_tex {
1.44 ng 203: return '';
1.9 albertel 204: }
205:
1.400 albertel 206: sub homework_js {
207: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 208: &setmode_javascript().
1.400 albertel 209: <<'JS';
210: <script type="text/javascript">
1.483 raeburn 211: // <![CDATA[
1.494 raeburn 212: function setSubmittedPart (part,prefix) {
213: if (typeof(prefix) == 'undefined') {
214: this.document.lonhomework.submitted.value="part_"+part;
215: } else {
216: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
217: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
218: this.document.lonhomework.elements[i].value="part_"+part;
219: }
220: }
221: }
1.400 albertel 222: }
223:
224: function image_response_click (which, e) {
225: init_geometry();
226: if (!e) { e = window.event; } //IE
227: var input_element = document.lonhomework.elements[which];
1.401 albertel 228: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 229: var token = token_element.value;
1.401 albertel 230: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 231: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
232: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
233: var click = x+':'+y;
234: input_element.value = click;
1.485 raeburn 235: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 236: }
1.483 raeburn 237: // ]]>
1.400 albertel 238: </script>
239: JS
240: }
241:
1.416 raeburn 242: sub setmode_javascript {
243: return <<"ENDSCRIPT";
244: <script type="text/javascript">
1.485 raeburn 245: // <![CDATA[
1.416 raeburn 246: function setmode(form,probmode) {
247: form.problemmode.value = probmode;
248: form.submit();
249: }
1.485 raeburn 250: // ]]>
1.416 raeburn 251: </script>
252: ENDSCRIPT
253: }
254:
1.48 albertel 255: sub page_start {
1.345 albertel 256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
257: $extra_head)=@_;
1.159 albertel 258: my %found;
1.207 albertel 259: foreach my $taginside (@$tagstack) {
1.159 albertel 260: foreach my $taglookedfor ('html','body','form') {
261: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
262: }
263: }
264:
1.343 albertel 265: if ($target eq 'tex') {
266: return
267: &Apache::londefdef::start_html($target,$token,$tagstack,
268: $parstack,$parser,$safeeval);
269: }
270:
1.474 raeburn 271: $extra_head .= &homework_js().
272: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
273: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
274: my %textarea_args = (
275: dragmath => 'math',
276: );
277: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 278: }
1.478 raeburn 279: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 280: my $needs_upload;
1.495 raeburn 281: my ($symb)= &Apache::lonnet::whichuser();
282: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 283: if ($is_task) {
1.495 raeburn 284: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 285: } else {
286: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 287: unless ($env{'request.state'} eq 'construct') {
288: my $navmap = Apache::lonnavmaps::navmap->new();
289: if (ref($navmap)) {
290: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 291: my $is_page;
292: if (ref($mapres)) {
293: $is_page = $mapres->is_page();
294: }
295: unless ($is_page) {
1.495 raeburn 296: $needs_upload = 1;
297: }
298: }
299: }
1.493 raeburn 300: } else {
301: unless ($env{'request.state'} eq 'construct') {
302: my $navmap = Apache::lonnavmaps::navmap->new();
303: if (ref($navmap)) {
1.495 raeburn 304: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 305: my $is_page;
306: if (ref($mapres)) {
307: $is_page = $mapres->is_page();
308: }
309: unless ($is_page) {
1.495 raeburn 310: my $res = $navmap->getBySymb($symb);
311: if (ref($res)) {
312: my $partlist = $res->parts();
313: if (ref($partlist) eq 'ARRAY') {
314: foreach my $part (@{$partlist}) {
315: my @types = $res->responseType($part);
316: my @ids = $res->responseIds($part);
317: for (my $i=0; $i < scalar(@ids); $i++) {
318: if ($types[$i] eq 'essay') {
319: my $partid = $part.'_'.$ids[$i];
320: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
321: $needs_upload = 1;
322: last;
323: }
1.493 raeburn 324: }
325: }
326: }
1.495 raeburn 327: }
328: }
1.493 raeburn 329: }
330: }
331: }
332: }
1.495 raeburn 333: if ($needs_upload) {
334: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
335: }
1.478 raeburn 336: }
1.425 raeburn 337:
1.344 albertel 338: my %body_args;
339: if (defined($found{'html'})) {
340: $body_args{'skip_phases'}{'head'}=1;
341: } else {
1.343 albertel 342:
1.345 albertel 343: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 344:
1.379 albertel 345: $extra_head .= &Apache::londefdef::generate_css_links();
346:
1.384 albertel 347: if ($env{'request.state'} eq 'construct') {
1.343 albertel 348: $extra_head.=&Apache::edit::js_change_detection().
349: "<script type=\"text/javascript\">\n".
350: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
351: &Apache::loncommon::browser_and_searcher_javascript().
352: "\n</script>\n";
353: }
1.159 albertel 354: }
1.343 albertel 355:
1.446 bisitz 356: my $pageheader = '';
1.344 albertel 357: if (defined($found{'body'})) {
358: $body_args{'skip_phases'}{'body'}=1;
359: } elsif (!defined($found{'body'})
360: && $env{'request.state'} eq 'construct') {
1.343 albertel 361: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 362: # Breadcrumbs for Construction Space
363: &Apache::lonhtmlcommon::clear_breadcrumbs();
364: &Apache::lonhtmlcommon::add_breadcrumb({
365: 'text' => 'Construction Space',
1.497 raeburn 366: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 367: });
1.460 droeschl 368: # breadcrumbs (and tools) will be created
369: # in start_page->bodytag->innerregister
370:
1.450 bisitz 371: # FIXME Where are we?
372: # &Apache::lonhtmlcommon::add_breadcrumb({
373: # 'text' => 'Problem Editing', # 'Problem Testing'
374: # 'href' => '',
375: # });
1.460 droeschl 376: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 377: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 378: }
1.272 albertel 379: } elsif (!defined($found{'body'})) {
1.343 albertel 380: my %add_entries;
1.159 albertel 381: my $background=&Apache::lonxml::get_param('background',$parstack,
382: $safeeval);
1.343 albertel 383: if ($background ne '' ) {
384: $add_entries{'background'} = $background;
385: }
1.344 albertel 386:
1.290 albertel 387: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
388: $safeeval);
1.446 bisitz 389: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 390:
1.446 bisitz 391: $body_args{'bgcolor'} = $bgcolor;
392: # $body_args{'no_title'} = 1;
393: $body_args{'force_register'} = 1;
394: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 395: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 396: $body_args{'only_body'} = 1;
397: }
1.344 albertel 398: }
1.365 albertel 399: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 400: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
401: \%body_args);
1.446 bisitz 402: $page_start .= $pageheader;
1.462 raeburn 403: if (!defined($found{'body'})
404: && $env{'request.state'} ne 'construct'
405: && ($target eq 'web' || $target eq 'webgrade')) {
406:
407: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
408: if ($symb eq '' && !$publicuser) {
409: $page_start .= '<p class="LC_info">'
410: .&mt('Browsing resource, all submissions are temporary.')
411: .'</p>';
1.457 bisitz 412: }
1.344 albertel 413: }
414:
1.409 albertel 415: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 416: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 417: }
418: my $form_tag_start;
419: if (!defined($found{'form'})) {
1.337 albertel 420: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 421: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 422: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 423: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 424: $form_tag_start.=$uri.'" ';
425: if ($target eq 'edit') {
426: $form_tag_start.=&Apache::edit::form_change_detection();
427: }
1.493 raeburn 428: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
429: my ($path,$multiresp) =
430: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 431: if (($is_task) || ($needs_upload)) {
432: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 433: }
1.368 albertel 434: $form_tag_start.='>'."\n";
1.355 albertel 435:
436: my $symb=&Apache::lonnet::symbread();
437: if ($symb =~ /\S/) {
438: $symb=
439: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
440: $form_tag_start.=
1.368 albertel 441: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 442: }
1.159 albertel 443: }
1.343 albertel 444: return ($page_start,$form_tag_start);
1.105 albertel 445: }
446:
1.141 matthew 447: #use Time::HiRes();
1.105 albertel 448: sub get_resource_name {
1.159 albertel 449: my ($parstack,$safeeval)=@_;
1.388 foxr 450: my $name;
1.204 albertel 451: if (defined($Apache::lonhomework::name)) {
1.388 foxr 452: $name = $Apache::lonhomework::name;
453: } else {
454: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 455: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 456: if ($name eq '') {
457: $name=&Apache::lonnet::EXT('resource.title');
458: if ($name eq 'con_lost') { $name = ''; }
459: }
460: if ($name!~/\S+/) {
461: $name=$env{'request.uri'};
462: $name=~s-.*/([^/]+)$-$1-;
463: }
464: # The name has had html tags escaped:
465:
466: $name=~s/</</gs;
467: $name=~s/>/>/gs;
468:
469: $Apache::lonhomework::name=$name;
1.204 albertel 470: }
1.159 albertel 471: return $name;
1.105 albertel 472: }
473:
474: sub setup_rndseed {
1.479 raeburn 475: my ($safeeval,$target)=@_;
1.367 albertel 476: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 477: my ($questiontype,$set_safespace,$rndseed);
478: if ($target eq 'analyze') {
479: $questiontype = $env{'form.grade_questiontype'};
480: }
481: unless (defined($questiontype)) {
482: $questiontype = $Apache::lonhomework::type;
483: }
1.333 albertel 484: if ($env{'request.state'} eq "construct"
485: || $symb eq ''
486: || $Apache::lonhomework::type eq 'practice'
487: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 488: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 489: ['rndseed']);
1.284 albertel 490: $rndseed=$env{'form.rndseed'};
1.159 albertel 491: if (!$rndseed) {
1.162 albertel 492: $rndseed=$Apache::lonhomework::history{'rndseed'};
493: if (!$rndseed) {
494: $rndseed=time;
495: }
1.284 albertel 496: $env{'form.rndseed'}=$rndseed;
1.162 albertel 497: }
1.479 raeburn 498: if (($env{'request.state'} eq "construct") &&
499: ($Apache::lonhomework::type eq 'randomizetry')) {
500: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
501: if ($tries) {
502: $rndseed += $tries;
503: }
1.480 raeburn 504: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 505: }
1.374 albertel 506: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
507: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 508: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 509: srand(time);
510: $rndseed=int(rand(2100000000));
1.284 albertel 511: $env{'form.rndseed'}=$rndseed;
512: delete($env{'form.resetdata'});
513: delete($env{'form.newrandomization'});
1.159 albertel 514: }
1.488 www 515: $rndseed=~s/\,/\:/g;
516: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 517: if (defined($rndseed)) {
518: my ($c1,$c2)=split(/\:/,$rndseed);
519: unless ($c2) { $c2=0; }
520: unless (($c1==int($c1)) && ($c2==int($c2))) {
521: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
522: }
1.187 albertel 523: }
1.247 albertel 524: if ($Apache::lonhomework::history{'resource.CODE'}) {
525: $rndseed=&Apache::lonnet::rndseed();
526: }
1.479 raeburn 527: $set_safespace = 1;
528: } elsif ($questiontype eq 'randomizetry') {
529: if ($target eq 'analyze') {
530: if (defined($env{'form.grade_rndseed'})) {
531: $rndseed = $env{'form.grade_rndseed'};
532: }
533: }
534: unless (($target eq 'analyze') && (defined($rndseed))) {
535: $rndseed=&Apache::lonnet::rndseed();
536: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
537: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
538: $curr_try ++;
539: }
540: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
541: $rndseed = $1;
542: }
543: if ($curr_try) {
544: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
545: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
546: my $inc = int(($curr_try-1)/$reqtries);
547: $rndseed += $inc;
548: } else {
549: $rndseed += $curr_try;
550: }
551: }
552: }
553: $set_safespace = 1;
554: }
555: if ($set_safespace) {
556: if ($safeeval) {
557: &Apache::lonxml::debug("Setting rndseed to $rndseed");
558: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
559: }
560: }
561: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
562: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 563: }
564: return $rndseed;
1.105 albertel 565: }
566:
1.268 albertel 567: sub remember_problem_state {
568: return '
1.284 albertel 569: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
570: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
571: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 572: }
573:
1.487 www 574: sub problem_edit_action_button {
575: my ($name,$action,$accesskey,$text,$flag)=@_;
576: my $actionscript="setmode(this.form,'$action')";
577: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
578: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
579: }
580:
1.423 www 581: sub problem_edit_buttons {
1.487 www 582: my ($mode)=@_;
583: # Buttons that do not save
584: my $result='<div class="LC_edit_problem_discards">'.
585: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
586: if ($mode eq 'editxml') {
587: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
588: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
589: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
590: } else {
591: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
592: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
593: }
594: $result.="\n</div>";
595: # Buttons that save
596: $result.='<div class="LC_edit_problem_saves">';
597: if ($mode eq 'editxml') {
598: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
599: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
600: } else {
601: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
602: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
603: }
604: $result.="\n</div>\n";
605: return $result;
1.423 www 606: }
607:
608: sub problem_edit_header {
1.487 www 609: return '<input type="hidden" name="submitted" value="edit" />'.
610: &remember_problem_state('edit').'
1.423 www 611: <div class="LC_edit_problem_header">
612: <div class="LC_edit_problem_header_title">
613: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
614: </div>'.
1.487 www 615: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 616: &problem_edit_buttons().'
1.459 bisitz 617: <hr style="clear:both;" />
1.409 albertel 618: '.&Apache::lonxml::message_location().'
1.408 albertel 619: </div>
620: '.
1.458 bisitz 621: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 622: }
623:
624: sub problem_edit_footer {
1.412 albertel 625: return '</td></tr></table><br />
626: <div class="LC_edit_problem_footer">
1.453 bisitz 627: <hr />'.
1.423 www 628: &problem_edit_buttons().'
1.459 bisitz 629: <hr style="clear:both;" />
1.412 albertel 630: </div>
631: '.
1.342 albertel 632: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 633: }
634:
1.235 albertel 635: sub option {
636: my ($value,$name) = @_;
637: my $result ="<option value='".$value."' ";
1.284 albertel 638: if ($env{'form.'.$name} eq $value) {
1.235 albertel 639: $result.=" selected='on' ";
640: }
641: $result.='>';
642: return $result;
643: }
644:
1.105 albertel 645: sub problem_web_to_edit_header {
1.159 albertel 646: my ($rndseed)=@_;
1.406 albertel 647: my $result .= '<div class="LC_edit_problem_header">';
648:
649: if (!$Apache::lonhomework::parsing_a_task) {
650: $result .=
651: '<div class="LC_edit_problem_header_title">'.
652: &mt('Problem Testing').
653: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
654: '</div>';
655: } else {
656: $result .=
657: '<div class="LC_edit_problem_header_title">'.
658: &mt('Task Testing').
659: '</div>';
660: }
661:
1.315 albertel 662: my $show_all_foils_text =
663: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 664: &mt('Show All Instances')
665: : &mt('Show All Foils');
1.315 albertel 666:
1.452 bisitz 667: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
668: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 669: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 670: $show_all.= ' /> '.$show_all_foils_text
671: .'</label></span>';
1.406 albertel 672:
673:
1.384 albertel 674:
1.406 albertel 675: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 676: if (!$Apache::lonhomework::parsing_a_task) {
677: $result.="
1.406 albertel 678: <div class='LC_edit_problem_header_row1'>
679: <span class=\"LC_nobreak\">
1.405 albertel 680: ".&mt("Problem Status:")."
1.235 albertel 681: <select name='problemstate'>
1.270 albertel 682: <option value=''></option>
1.235 albertel 683: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
684: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
685: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
686: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
687: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
688: </select>
1.406 albertel 689: </span>
690: <span class=\"LC_nobreak\">
1.405 albertel 691: ".&mt("Problem Type:")."
1.235 albertel 692: <select name='problemtype'>
1.270 albertel 693: <option value=''></option>
1.242 albertel 694: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 695: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 696: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 697: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
698: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
699: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 700: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 701: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 702: </select>
1.406 albertel 703: </span>
704: $show_all
705: </div>
706: <div class='LC_edit_problem_header_row2'>
707: <span class=\"LC_nobreak\">
1.405 albertel 708: ".&mt("Feedback Mode:")."
1.235 albertel 709: <select name='problemstatus'>
710: <option value=''></option>
1.242 albertel 711: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 712: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
713: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 714: </select>
1.406 albertel 715: </span>
716: ";
717:
1.376 albertel 718: } elsif ($Apache::lonhomework::parsing_a_task) {
719: $result.="
1.406 albertel 720: <div class='LC_edit_problem_header_row1'>
721: <span class=\"LC_nobreak\">
1.405 albertel 722: ".&mt("Problem Status:")."
1.376 albertel 723: <select name='problemstate'>
724: <option value=''></option>
725: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
726: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
727: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
728: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
729: </select>
1.406 albertel 730: </span>
731: $show_all
732: ";
733: }
734: $result.='
735: <span class="LC_nobreak">
736: '.&mt('Apply style file: ').'
737: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
738: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
739: </span>
1.422 www 740: </div>
741: <div class="LC_edit_problem_header_row1">'.
742: &Apache::lonxml::renderingoptions().'
1.406 albertel 743: </div>
744: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
745: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
746: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
747: </div>
1.453 bisitz 748: <hr />
1.406 albertel 749: <div class="LC_edit_problem_header_randomize_row">
750: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
751: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 752: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 753: $rndseed.'"
754: onchange="javascript:document.lonhomework.changerandseed.click()" />';
755:
756: if (!$Apache::lonhomework::parsing_a_task) {
757: my $numtoanalyze=$env{'form.numtoanalyze'};
758: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 759: $result .= '<span class="LC_nobreak">'.
760: &mt('[_1] for [_2] versions.',
1.416 raeburn 761: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 762: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
763: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 764: $numtoanalyze.'" size="5" />').
765: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
766: '</span>';
767:
1.313 albertel 768: }
1.406 albertel 769:
770: $result.='
771: </div>
1.453 bisitz 772: <hr />
1.447 bisitz 773: <div>';
1.416 raeburn 774: $result.='<input type="hidden" name="problemmode" value="view" />';
775: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
776: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
777: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
778: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 779: $result.='
780: </div>
1.453 bisitz 781: <hr />
1.409 albertel 782: '.&Apache::lonxml::message_location().'
1.406 albertel 783: </div>';
1.159 albertel 784: return $result;
1.48 albertel 785: }
786:
1.65 albertel 787: sub initialize_storage {
1.357 albertel 788: my ($given_symb) = @_;
1.353 albertel 789: undef(%Apache::lonhomework::results);
790: undef(%Apache::lonhomework::history);
1.357 albertel 791: my ($symb,$courseid,$domain,$name) =
1.367 albertel 792: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 793:
794: # anonymous users (CODEd exams) have no data
795: if ($name eq 'anonymous'
796: && !defined($domain)) {
797: return;
798: }
799:
1.333 albertel 800: if ($env{'request.state'} eq 'construct'
801: || $symb eq ''
802: || $Apache::lonhomework::type eq 'practice') {
803:
804: my $namespace = $symb || $env{'request.uri'};
805: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 806: ($env{'form.resetdata'} eq &mt('New Problem Variation')
807: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 808: $env{'form.newrandomization'} eq &mt('New Randomization')) {
809: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
810: &Apache::lonxml::debug("Attempt reset");
811: }
1.159 albertel 812: %Apache::lonhomework::history=
1.333 albertel 813: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 814: my ($temp)=keys %Apache::lonhomework::history ;
815: &Apache::lonxml::debug("Return message of $temp");
816: } else {
817: %Apache::lonhomework::history=
818: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
819: }
1.353 albertel 820:
1.159 albertel 821: #ignore error conditions
1.67 albertel 822: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 823: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 824: }
825:
1.435 jms 826: =pod
827:
828: =item finalize_storage()
829:
830: Stores away the result has to a student's environment
831: checks form.grade_ for specific values, other wises stores
832: to the running users environment
833: Will increment totals for attempts, students, and corrects
834: if running user has student role.
835:
836: =cut
837:
838:
1.65 albertel 839: sub finalize_storage {
1.357 albertel 840: my ($given_symb) = @_;
1.159 albertel 841: my $result;
1.289 albertel 842: if (%Apache::lonhomework::results) {
1.323 albertel 843: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
844: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 845: my ($symb,$courseid,$domain,$name) =
1.367 albertel 846: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 847: if ($env{'request.state'} eq 'construct'
848: || $symb eq ''
849: || $Apache::lonhomework::type eq 'practice') {
850: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 851: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 852: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 853: $namespace,'',$domain,$name);
1.159 albertel 854: &Apache::lonxml::debug('Construct Store return message:'.$result);
855: } else {
856: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
857: $symb,$courseid,$domain,$name);
858: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 859: &store_aggregates($symb,$courseid);
1.159 albertel 860: }
1.323 albertel 861: } else {
862: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 863: }
1.159 albertel 864: return $result;
1.65 albertel 865: }
866:
1.435 jms 867: =pod
868:
869: item store_aggregates()
870:
871: Sends hash of values to be incremented in nohist_resourcetracker.db
872: for the course. Increments total number of attempts, unique students
873: and corrects for each part for an instance of a problem, as appropriate.
874:
875: =cut
876:
1.285 raeburn 877: sub store_aggregates {
878: my ($symb,$courseid) = @_;
1.479 raeburn 879: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 880: my @parts;
1.288 albertel 881: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
882: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 883: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 884: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 885: push(@parts, $1);
1.285 raeburn 886: }
887: }
1.286 albertel 888: foreach my $part (@parts) {
1.470 raeburn 889: if ($env{'request.role'} =~/^st/) {
890: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
891: eq 'APPROX_ANS' ||
892: $Apache::lonhomework::results{'resource.'.$part.'.award'}
893: eq 'EXACT_ANS') {
894: $aggregate{$symb."\0".$part."\0correct"} = 1;
895: }
896: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
897: $aggregate{$symb."\0".$part."\0users"} = 1;
898: } else {
899: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
900: if ($last_reset) {
901: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
902: $aggregate{$symb."\0".$part."\0users"} = 1;
903: }
904: }
905: }
906: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 907: }
1.470 raeburn 908: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 909: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
910: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
911: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
912: $randtrycounter{$symb."\0".$part} = 1;
913: } else {
914: $anoncounter{$symb."\0".$part} = 1;
915: }
1.470 raeburn 916: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
917: if ($needsrelease) {
918: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
919: if ($curr_required eq '') {
1.471 raeburn 920: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 921: } else {
922: my ($currmajor,$currminor) = split(/\./,$curr_required);
923: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
924: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 925: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 926: }
1.292 raeburn 927: }
928: }
1.285 raeburn 929: }
930: }
1.292 raeburn 931: if (keys (%aggregate) > 0) {
1.289 albertel 932: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 933: $cdomain,$cname);
934: }
1.472 raeburn 935: if (keys(%anoncounter) > 0) {
1.481 raeburn 936: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
937: $cdomain,$cname);
1.472 raeburn 938: }
1.479 raeburn 939: if (keys(%randtrycounter) > 0) {
1.481 raeburn 940: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
941: $cdomain,$cname);
1.479 raeburn 942: }
1.292 raeburn 943: }
1.289 albertel 944:
1.65 albertel 945: sub checkout_msg {
1.211 albertel 946: my %lt=&Apache::lonlocal::texthash(
947: 'resource'=>'The resource needs to be checked out',
948: '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.',
949: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
950: 'checkout'=>'Check out Exam for Viewing',
951: 'checkout?'=>'Check out Exam?');
1.352 albertel 952: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 953: return (<<ENDCHECKOUT);
1.211 albertel 954: <h2>$lt{'resource'}</h2>
955: <p>$lt{'id_expln'}</p>
1.449 bisitz 956: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 957: <form name="checkout" method="post" action="$uri">
1.91 albertel 958: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 959: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 960: </form>
961: ENDCHECKOUT
962: }
963:
1.252 albertel 964: sub firstaccess_msg {
1.253 albertel 965: my ($time,$symb)=@_;
1.414 albertel 966: my $result;
967: my @interval=&Apache::lonnet::EXT("resource.0.interval");
968: if ($interval[1] eq 'map') {
969: my ($map)=&Apache::lonnet::decode_symb($symb);
970: my $foldertitle=&Apache::lonnet::gettitle($map);
971:
972: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 973: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
974: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
975: ,$foldertitle,$time)."</h2>";
1.414 albertel 976: } elsif ($interval[1] eq 'course') {
977: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 978: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
979: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
980: ,$course,$time)."</h2>";
1.414 albertel 981: } else {
982: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 983: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
984: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
985: ,$title,$time)."</h2>";
1.414 albertel 986: }
1.352 albertel 987: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 988: my $buttontext = &mt('Show Resource');
989: my $timertext = &mt('Start Timer?');
1.414 albertel 990: $result .= (<<ENDCHECKOUT);
1.444 bisitz 991: <form name="markaccess" method="post" action="$uri">
1.252 albertel 992: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 993: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 994: </form>
995: ENDCHECKOUT
1.414 albertel 996: return $result;
1.252 albertel 997: }
998:
1.204 albertel 999: sub init_problem_globals {
1000: my ($type)=@_;
1001: #initialize globals
1.308 foxr 1002: # For problems, we start out in part 0 (outside a <part> tag).
1003: # and part 0 is used to describe the main body of the <problem>
1004: #
1.204 albertel 1005: if ($type eq 'problem') {
1006: $Apache::inputtags::part='0';
1007: @Apache::inputtags::partlist=('0');
1.405 albertel 1008: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1009: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1010:
1.266 albertel 1011: } elsif ($type eq 'library') {
1.204 albertel 1012: $Apache::inputtags::part='';
1013: @Apache::inputtags::partlist=();
1.405 albertel 1014: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1015: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1016:
1.304 albertel 1017: } elsif ($type eq 'Task') {
1018: $Apache::inputtags::part='0';
1019: @Apache::inputtags::partlist=('0');
1.405 albertel 1020: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1021: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1022: }
1.477 www 1023: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1024: @Apache::inputtags::responselist = ();
1025: @Apache::inputtags::importlist = ();
1026: @Apache::inputtags::previous=();
1027: @Apache::inputtags::previous_version=();
1028: $Apache::structuretags::printanswer='No';
1029: @Apache::structuretags::whileconds=();
1030: @Apache::structuretags::whilebody=();
1031: @Apache::structuretags::whileline=();
1032: $Apache::lonhomework::scantronmode=0;
1033: undef($Apache::lonhomework::name);
1.358 albertel 1034: undef($Apache::lonhomework::default_type);
1035: undef($Apache::lonhomework::type);
1.204 albertel 1036: }
1037:
1038: sub reset_problem_globals {
1039: my ($type)=@_;
1040: undef(%Apache::lonhomework::history);
1041: undef(%Apache::lonhomework::results);
1042: undef($Apache::inputtags::part);
1.208 albertel 1043: #don't undef this, lonhomework.pm takes care of this, we use this to
1044: #detect if we try to do 2 problems in one file
1045: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1046: undef($Apache::lonhomework::name);
1.358 albertel 1047: undef($Apache::lonhomework::default_type);
1048: undef($Apache::lonhomework::type);
1049: undef($Apache::lonhomework::scantronmode);
1050: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1051: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1052: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1053: }
1054:
1.241 albertel 1055: sub set_problem_state {
1.240 albertel 1056: my ($part)=@_;
1.284 albertel 1057: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1058: $Apache::lonhomework::history{"resource.$part.solved"}=
1059: 'correct_by_student';
1060: }
1061: }
1062:
1.241 albertel 1063: sub get_problem_status {
1064: my ($part)=@_;
1.267 albertel 1065: my $problem_status;
1.284 albertel 1066: if ($env{'request.state'} eq 'construct' &&
1067: defined($env{'form.problemstatus'})) {
1068: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1069: } else {
1070: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1071: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1072: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1073: }
1074: return $problem_status;
1075: }
1076:
1.9 albertel 1077: sub start_problem {
1.326 albertel 1078: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1079:
1.311 foxr 1080: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1081: if (!$Apache::lonxml::metamode) {
1082: &Apache::lonxml::startredirection();
1083: }
1.311 foxr 1084:
1.308 foxr 1085: # Problems don't nest and we don't allow more than one <problem> in
1086: # a .problem file.
1087: #
1.184 albertel 1088: if ( $Apache::inputtags::part ne '' ||
1089: $Apache::lonhomework::parsing_a_problem) {
1090: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1091: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1092: return '';
1093: }
1.184 albertel 1094:
1095: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1096: &init_problem_globals('problem');
1.166 albertel 1097:
1.284 albertel 1098: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1099: $Apache::lonhomework::scantronmode=1;
1100: }
1.161 albertel 1101:
1.159 albertel 1102: if ($target ne 'analyze') {
1.415 raeburn 1103: my $type = &Apache::lonnet::EXT('resource.0.type');
1104: $Apache::lonhomework::type=$type;
1.284 albertel 1105: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1106: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1107: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1108: }
1.332 albertel 1109: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1110: }
1.164 albertel 1111: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1112: my $uri=$env{'request.uri'};
1.159 albertel 1113: if ($uri=~/\.(\w+)$/) {
1114: $Apache::lonhomework::type=$1;
1115: &Apache::lonxml::debug("Using type of $1");
1116: } else {
1117: $Apache::lonhomework::type='problem';
1118: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1119: }
1.87 albertel 1120: }
1.301 albertel 1121: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1122:
1.363 albertel 1123: &initialize_storage();
1.389 albertel 1124: if ($target ne 'analyze'
1125: && $env{'request.state'} eq 'construct') {
1126: &set_problem_state('0');
1127: }
1128:
1.366 albertel 1129: if ($target eq 'web') {
1130: &Apache::lonxml::debug(" grading history ");
1131: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1132: }
1.363 albertel 1133:
1.159 albertel 1134: #added vars to the scripting enviroment
1.213 albertel 1135: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1136: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1137: &Apache::run::run($expression,$safeeval);
1.159 albertel 1138: my $status;
1139: my $accessmsg;
1140:
1.343 albertel 1141: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1142: my ($result,$form_tag_start);
1.354 albertel 1143: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1144: || $target eq 'edit') {
1.350 albertel 1145: ($result,$form_tag_start) =
1146: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1147: $name);
1148: }
1149:
1.284 albertel 1150: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1151:
1.479 raeburn 1152: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1153: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1154: $target eq 'tex') {
1.284 albertel 1155: if ($env{'form.markaccess'}) {
1.414 albertel 1156: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1157: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1158: }
1.479 raeburn 1159:
1160: ($status,$accessmsg,my $slot_name,my $slot) =
1161: &Apache::lonhomework::check_slot_access('0','problem');
1162: push (@Apache::inputtags::status,$status);
1163:
1.159 albertel 1164: #handle rand seed in construction space
1.479 raeburn 1165: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1166: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1167:
1.333 albertel 1168: if ($env{'request.state'} ne "construct" &&
1169: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1170: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1171: $rndseed.'" />'.
1172: '<input type="submit" name="resetdata"
1173: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1174: if (exists($env{'form.username'})) {
1175: $form_tag_start.=
1.164 albertel 1176: '<input type="hidden" name="username"
1.284 albertel 1177: value="'.$env{'form.username'}.'" />';
1.334 albertel 1178: }
1.462 raeburn 1179: if ($env{'request.role.adv'}) {
1180: $form_tag_start.= ' <label class="LC_nobreak">'
1181: .'<input type="checkbox" name="showallfoils"';
1182: if (defined($env{'form.showallfoils'})) {
1183: $form_tag_start.=' checked="checked"';
1184: }
1185: $form_tag_start.= ' /> '
1186: .&mt('Show All Foils')
1187: .'</label>';
1188: }
1.417 www 1189: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1190: $form_tag_start.=&practice_problem_header();
1.417 www 1191: }
1.462 raeburn 1192: $form_tag_start.='<hr />';
1.479 raeburn 1193: } elsif (($env{'request.state'} ne "construct") &&
1194: ($Apache::lonhomework::type eq 'randomizetry') &&
1195: ($status eq 'CAN_ANSWER')) {
1196: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1197: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1198: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1199: }
1.324 albertel 1200:
1.159 albertel 1201: my $expression='$external::datestatus="'.$status.'";';
1202: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1203: &Apache::run::run($expression,$safeeval);
1204: &Apache::lonxml::debug("Got $status");
1.324 albertel 1205:
1.159 albertel 1206: if (( $status eq 'CLOSED' ) ||
1207: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1208: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1209: ( $status eq 'BANNED') ||
1.216 albertel 1210: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1211: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1212: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1213: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1214: $style);
1.159 albertel 1215: if ( $target eq "web" ) {
1.343 albertel 1216: my $msg;
1.159 albertel 1217: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1218: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1219: } elsif ($status eq 'NOT_IN_A_SLOT') {
1220: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1221: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1222: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1223: }
1.216 albertel 1224: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1225: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1226: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1227: $msg.=&checkout_msg();
1.252 albertel 1228: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1229: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1230: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1231: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1232: }
1233: $result.=$msg.'<br />';
1234: } elsif ($target eq 'tex') {
1.332 albertel 1235: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1236: : '\begin{minipage}{\textwidth}';
1.443 foxr 1237: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1238: $startminipage.'\vskip 0 mm';
1.159 albertel 1239: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1240: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1241: } else {
1.211 albertel 1242: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1243: }
1244: }
1.324 albertel 1245: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1246: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1247: $style);
1.324 albertel 1248: if ($target eq 'web') {
1.375 albertel 1249: $result .=
1250: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1251: } elsif ($target eq 'grade') {
1252: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1253: 'problem');
1254: }
1.159 albertel 1255: } elsif ($target eq 'web') {
1.360 albertel 1256: if ($status eq 'CAN_ANSWER'
1257: && $slot_name ne ''
1258: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1259: # unproctored slot access, self checkin
1260: &Apache::bridgetask::check_in('problem',undef,undef,
1261: $slot_name);
1262: }
1.368 albertel 1263: $result.="\n $form_tag_start \t".
1.227 albertel 1264: '<input type="hidden" name="submitted" value="yes" />';
1265: # create a page header and exit
1.284 albertel 1266: if ($env{'request.state'} eq "construct") {
1267: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1268: if ($Apache::lonhomework::type eq 'practice') {
1269: $result.= '<input type="submit" name="resetdata" '.
1270: 'value="'.&mt('New Problem Variation').'" />'.
1271: &practice_problem_header().'<hr />';
1272: }
1.227 albertel 1273: }
1274: # if we are viewing someone else preserve that info
1.284 albertel 1275: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1276: foreach my $field ('symb','courseid','domain','username') {
1277: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1278: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1279: }
1.479 raeburn 1280: foreach my $field ('trial','questiontype') {
1281: if ($env{"form.grade_$field"} ne '') {
1282: $result .= '<input type="hidden" name="grade_'.$field.
1283: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1284: }
1285: }
1.159 albertel 1286: }
1.490 raeburn 1287: if ($env{'form.grade_imsexport'}) {
1288: $result = '';
1289: }
1.159 albertel 1290: } elsif ($target eq 'tex') {
1.319 foxr 1291: $result .= 'INSERTTEXFRONTMATTERHERE';
1292:
1.99 sakharuk 1293: }
1.159 albertel 1294: } elsif ($target eq 'edit') {
1.343 albertel 1295: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1296: $Apache::lonxml::warnings_error_header=
1297: &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 1298: my $temp=&Apache::edit::insertlist($target,$token);
1299: $result.=$temp;
1300: } elsif ($target eq 'modified') {
1301: $result=$token->[4];
1302: } else {
1303: # page_start returned a starting result, delete it if we don't need it
1304: $result = '';
1.99 sakharuk 1305: }
1.159 albertel 1306: return $result;
1.9 albertel 1307: }
1308:
1309: sub end_problem {
1.159 albertel 1310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1311: my $result;
1.310 foxr 1312:
1.321 albertel 1313: if (!$Apache::lonxml::metamode) {
1314: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1315: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1316: }
1.319 foxr 1317:
1318: if ($target eq 'tex') {
1.321 albertel 1319: # Figure out the front matter and replace the
1320: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1321: # this in end_problem because whether or not we display due
1322: # dates depends on whether due dates have already been
1323: # displayed in the problem parts.
1324:
1.319 foxr 1325: my $frontmatter = '';
1326: my $startminipage = '';
1327: if (not $env{'form.problem_split'}=~/yes/) {
1328: $startminipage = '\begin{minipage}{\textwidth}';
1329: }
1330: my $id = $Apache::inputtags::part;
1331: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1332: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1333: my @packages = split /,/,$packages;
1334: my $allow_print_points = 0;
1335: foreach my $partial_key (@packages) {
1336: if ($partial_key=~m/^part_0$/) {
1337: $allow_print_points=1;
1338: }
1339: }
1340: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1341: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1342: if (lc($env{'course.'.$env{'request.course.id'}.
1343: '.disableexampointprint'}) eq 'yes') {
1344: $allow_print_points=0;
1345: }
1346: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1347: 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 1348: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1349: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1350:
1351: # Figure out what the due date is and if we need to print
1352: # it in the problem header. We have been logging the
1353: # last due date written to file.
1354:
1355: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1356: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1357: my $duedate_text = &mt('Due date: [_1]'
1358: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1359: my $temp_file;
1360: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1361:
1362: # Figure out what the last printed due date is or set it
1363: # to the epoch if no duedates have been printed.
1364:
1365: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1366: if (-e $filename) {
1367: $temp_file = Apache::File->new($filename);
1368: my @due_file = <$temp_file>;
1369: $due_file_content = $due_file[$#due_file];
1370: chomp $due_file_content;
1371: }
1372:
1373: # We display the due date iff it is not the same as the last
1374: # duedate in problem header ($due_file_content), and
1375: # none of our parts displayed a duedate.
1376: #
1377: my $parts_with_displayduedate;
1378: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1379: $parts_with_displayduedate =
1380: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1381: } else {
1382: $parts_with_displayduedate = 0;
1383: }
1384: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1385: $temp_file = Apache::File->new('>'.$filename);
1386: print $temp_file "$duetime\n";
1387: if (not $env{'request.symb'} =~ m/\.page_/) {
1388: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1389: $frontmatter .= $begin_doc.
1.448 bisitz 1390: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1391: } else {
1392: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1393: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1394: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1395: }
1.319 foxr 1396: }
1397: } else {
1.448 bisitz 1398: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1399: }
1400: } else {
1401: if (not $env{'request.symb'} =~ m/\.page_/) {
1402: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1403: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1404: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1405: }
1.319 foxr 1406: } else {
1.381 albertel 1407: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1408: }
1409: }
1410: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1411: }
1412:
1.159 albertel 1413: my $status=$Apache::inputtags::status['-1'];
1414: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1415: $target eq 'tex') {
1.249 albertel 1416: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1417: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1418: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1419: &Apache::inputtags::grade;
1.324 albertel 1420: } elsif ($status eq 'NEEDS_CHECKIN') {
1421: # no need to grade, and don't want to hide data
1.249 albertel 1422: } else {
1423: # move any submission data to .hidden
1424: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1425: }
1.159 albertel 1426: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1427: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1428: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1429: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1430: # if part is zero, no <part>s existed, so we need show the current
1431: # grading status
1432: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1433: $result.= $gradestatus;
1434: }
1435: if (
1.284 albertel 1436: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1437: ($target eq 'answer') || ($target eq 'tex')
1438: ) {
1.490 raeburn 1439: if (($target ne 'tex') &&
1440: ($env{'form.answer_output_mode'} ne 'tex') &&
1441: (!$env{'form.grade_imsexport'})) {
1.254 www 1442: $result.="</form>";
1.159 albertel 1443: }
1444: if ($target eq 'web') {
1.346 albertel 1445: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1446: } elsif ($target eq 'tex') {
1.178 sakharuk 1447: my $endminipage = '';
1.284 albertel 1448: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1449: $endminipage = '\end{minipage}';
1450: }
1.284 albertel 1451: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1452: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1453: } else {
1.262 sakharuk 1454: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1455: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1456: $result .= $endminipage.'\end{document} ';
1457: } else {
1.382 albertel 1458: $result .= $endminipage;
1.262 sakharuk 1459: }
1.159 albertel 1460: }
1461: }
1462: }
1.476 www 1463: if ($target eq 'web') {
1464: $result.=&Apache::functionplotresponse::init_script();
1465: }
1.159 albertel 1466: if ($target eq 'grade') {
1467: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1468: &finalize_storage();
1469: }
1.284 albertel 1470: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1471: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1472: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1473: # normally we get it from above, but in CSTR
1.172 albertel 1474: # we always show answer mode too.
1.159 albertel 1475: }
1476: } elsif ($target eq 'meta') {
1477: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1478: @Apache::inputtags::response=();
1.159 albertel 1479: $result=&Apache::response::mandatory_part_meta;
1480: }
1.215 albertel 1481: $result.=&Apache::response::meta_part_order();
1.258 albertel 1482: $result.=&Apache::response::meta_response_order();
1.159 albertel 1483: } elsif ($target eq 'edit') {
1484: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1485: $result .= &problem_edit_footer();
1.320 albertel 1486: } elsif ($target eq 'modified') {
1487: $result .= $token->[2];
1.159 albertel 1488: }
1.155 albertel 1489:
1.284 albertel 1490: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1491: &Apache::inputtags::check_for_duplicate_ids();
1492: }
1.204 albertel 1493:
1494: &reset_problem_globals('problem');
1.159 albertel 1495:
1496: return $result;
1.48 albertel 1497: }
1498:
1.108 albertel 1499:
1.48 albertel 1500: sub start_library {
1.159 albertel 1501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1502: my ($result,$form_tag_start);
1.371 albertel 1503: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1504: &init_problem_globals('library');
1505: $Apache::lonhomework::type='problem';
1506: }
1.159 albertel 1507: if ($target eq 'edit') {
1.343 albertel 1508: ($result,$form_tag_start)=
1509: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1510: 'Edit');
1511: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1512: my $temp=&Apache::edit::insertlist($target,$token);
1513: $result.=$temp;
1514: } elsif ($target eq 'modified') {
1515: $result=$token->[4];
1.340 albertel 1516: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1517: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1518: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1519: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1520: ($result,$form_tag_start)=
1521: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1522: $name);
1.479 raeburn 1523: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1524: $result.=" \n $form_tag_start".
1.159 albertel 1525: '<input type="hidden" name="submitted" value="yes" />';
1526: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1527: if ($Apache::lonhomework::type eq 'practice') {
1528: $result.= '<input type="submit" name="resetdata" '.
1529: 'value="'.&mt('New Problem Variation').'" />'.
1530: &practice_problem_header().'<hr />';
1531: }
1.159 albertel 1532: }
1533: return $result;
1.48 albertel 1534: }
1535:
1536: sub end_library {
1.159 albertel 1537: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1538: my $result='';
1539: if ($target eq 'edit') {
1540: $result=&problem_edit_footer();
1.371 albertel 1541: } elsif ($target eq 'web'
1542: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1543: && $env{'request.state'} eq "construct") {
1.349 albertel 1544: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1545: }
1.371 albertel 1546: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1547: &reset_problem_globals('library');
1548: }
1.159 albertel 1549: return $result;
1.197 www 1550: }
1551:
1552: sub start_definetag {
1.326 albertel 1553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1554:
1555: my $result;
1556:
1557: my $name = $token->[2]->{'name'};
1.326 albertel 1558: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1559: if ($target eq 'web') {
1560: if ($name=~/^\//) {
1561: $result=
1562: '<br /><table class="LC_sty_end"><tr><th>'.
1563: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1564: } else {
1565: $result=
1566: '<br /><table class="LC_sty_begin"><tr><th>'.
1567: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1568: }
1569: $skip = &HTML::Entities::encode($skip, '<>&"');
1570: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1571: }
1572: return $result;
1573: }
1574:
1575: sub end_definetag {
1576: return '';
1.1 albertel 1577: }
1578:
1579: sub start_block {
1.201 albertel 1580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1581:
1582: my $result;
1.1 albertel 1583:
1.339 albertel 1584: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1585: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1586: my $code = $token->[2]->{'condition'};
1.385 albertel 1587: if (defined($code) && $code ne '') {
1.137 albertel 1588: if (!$Apache::lonxml::default_homework_loaded) {
1589: &Apache::lonxml::default_homework_load($safeeval);
1590: }
1.131 albertel 1591: $result = &Apache::run::run($code,$safeeval);
1592: &Apache::lonxml::debug("block :$code: returned :$result:");
1593: } else {
1594: $result='1';
1595: }
1596: if ( ! $result ) {
1.201 albertel 1597: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1598: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1599: }
1600: $result='';
1601: } elsif ($target eq 'edit') {
1602: $result .=&Apache::edit::tag_start($target,$token);
1603: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1604: $token,40);
1605: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1606: } elsif ($target eq 'modified') {
1607: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1608: $safeeval,'condition');
1609: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1610: }
1.131 albertel 1611: return $result;
1.1 albertel 1612: }
1613:
1614: sub end_block {
1.167 www 1615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1616: my $result;
1617: if ($target eq "edit") {
1618: $result.= &Apache::edit::tag_end($target,$token,'');
1619: }
1620: return $result;
1621: }
1.497.2.1 foxr 1622: #
1623: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1624: # ...
1625: # </languageblock>
1626: #
1627: # This declares the intent to provide content that can be rendered in the
1628: # set of languages in the include specificatino but not in the exclude
1629: # specification. If a currently preferred language is in the include list
1630: # the content in the <languageblock>...</languageblock> is rendered
1631: # If the currently preferred language is in the exclude list,
1632: # the content in the <languageblock>..></languageblock is not rendered.
1633: #
1634: # Pathalogical case handling:
1635: # - Include specified, without the preferred language but exclude specified
1636: # also without the preferred langauge results in rendering the block.
1637: # - Exclude specified without include and excluden not containing a
1638: # preferred language renders the block.
1639: # - Include and exclude both specifying the preferred language does not
1640: # render the block.
1641: # - If neither include/exclude is specified, the block gets rendered.
1642: #
1643: # This tag has no effect when target is in {edit, modified}
1644: #
1.167 www 1645: sub start_languageblock {
1.201 albertel 1646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1647:
1.497.2.1 foxr 1648: my $result = '';
1.167 www 1649:
1.339 albertel 1650: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1651: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1652: my $include = $token->[2]->{'include'};
1653: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1654: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.497.2.1 foxr 1655:
1656: # This should not even happen, since we should at least have the server language
1657:
1658: if (!$preferred_languages[0]) {
1659: $preferred_languages[0]='en';
1660: }
1661:
1662: # Now loop over all languages in order of preference
1663:
1.497.2.4! foxr 1664: my $render;
1.398 www 1665: foreach my $preferred_language (@preferred_languages) {
1.497.2.1 foxr 1666:
1667: # If neither include/nor exlude is present the block is going
1668: # to get rendered.
1669:
1.399 www 1670: my $found=0;
1.497.2.4! foxr 1671: $render=1;
! 1672:
1.497.2.1 foxr 1673: # If include is specified, don't render the block
1674: # unless the preferred language is included in the set.
1675:
1.398 www 1676: if ($include) {
1.497.2.1 foxr 1677: $render=0;
1.398 www 1678: foreach my $included_language (split(/\,/,$include)) {
1679: if ($included_language eq $preferred_language) {
1.497.2.1 foxr 1680: $render=1;
1.399 www 1681: $found=1;
1.497.2.1 foxr 1682: last; # Only need to find the first.
1.398 www 1683: }
1684: }
1685: }
1.497.2.1 foxr 1686: # Do we have an exclude argument?
1687: # If so, and one of the languages matches a preferred language
1688: # inhibit rendering the block. Note that in the pathalogical case the
1689: # author has specified a preferred language in both the include and exclude
1690: # attribte exclude is preferred.
1691:
1.398 www 1692: if ($exclude) {
1.497.2.1 foxr 1693: $render=1;
1.398 www 1694: foreach my $excluded_language (split(/\,/,$exclude)) {
1695: if ($excluded_language eq $preferred_language) {
1.497.2.1 foxr 1696: $render=0;
1.399 www 1697: $found=1;
1.497.2.1 foxr 1698: last; # Only need to find the first.
1.398 www 1699: }
1700: }
1701: }
1.497.2.1 foxr 1702: if ($found) {
1703: last; # Done on any match of include or exclude.
1704: }
1.398 www 1705: }
1.497.2.1 foxr 1706: # If $render not true skip the entire block until </languageblock>
1707: #
1708:
1709: if ( ! $render ) {
1.201 albertel 1710: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1711: $style);
1712: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1713: }
1.497.2.1 foxr 1714: # If $render is true, we've not skipped the contents of the <languageglock>
1715: # and the normal loncapa processing flow will render it as a matter of course.
1716:
1.167 www 1717: } elsif ($target eq 'edit') {
1718: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1719: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1720: $token,40);
1.211 albertel 1721: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1722: $token,40);
1723: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1724: } elsif ($target eq 'modified') {
1725: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1726: $safeeval,'include',
1727: 'exclude');
1.167 www 1728: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1729: }
1730: return $result;
1731: }
1732:
1733: sub end_languageblock {
1.170 www 1734: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1735: my $result;
1.201 albertel 1736: if ($target eq "edit") {
1.170 www 1737: $result.= &Apache::edit::tag_end($target,$token,'');
1738: }
1739: return $result;
1740: }
1.497.2.3 foxr 1741: # languagblock specific tags:
1.397 albertel 1742: {
1.497.2.2 foxr 1743: # For chunks of a resource that has translations, this hash contains
1744: # the translations available indexed by language name.
1745: #
1746:
1747: my %available_texts;
1748:
1749: # <translated> starts a block of a resource that has multiple translations.
1750: # See the <lang> tag as well.
1751: # When </translated> is encountered if there is a translation for the
1752: # currently preferred language, that is rendered inthe web/tex/webgrade
1753: # targets. Otherwise, the default text is rendered.
1754: #
1755: # Note that <lang> is only registered for the duration of the
1756: # <translated>...</translated> block
1757: #
1758: # Pathalogical case handling:
1759: # - If there is no <lang> that specifies a 'default' and there is no
1760: # translation that matches a preferred language, nothing is rendered.
1761: # - Nested <translated>...</translated> might be linguistically supported by
1762: # XML due to the stack nature of tag registration(?) however the rendered
1763: # output will be incorrect because there is only one %available_texts
1764: # has and end_translated clears it.
1765: # - Material outside of a <lang>...</lang> block within the
1766: # <translated>...<translated> block won't render either e.g.:
1767: # <translated>
1768: # The following will be in your preferred langauge:
1769: # <lang which='en'>
1770: # This section in english
1771: # </lang>
1772: # <lang which='sgeiso'>
1773: # Hier es ist auf Deutsch.
1774: # </lang>
1775: # <lang which='sfriso'>
1776: # En Francais
1777: # </lang>
1778: # </translated>
1779: #
1780: # The introductory text prior to the first <lang> tag is not rendered.
1781: #
1.397 albertel 1782: sub start_translated {
1783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1784: &Apache::lonxml::register('Apache::structuretags',('lang'));
1785: undef(%available_texts);
1786: }
1787:
1788: sub end_translated {
1789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1790: my $result;
1791: #show the translation on viewable targets
1792: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1793: # or non-viewable targets, if it's embedded in something that
1794: # wants the output
1795: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1796: && &Apache::lonxml::in_redirection() ) ) {
1797: my @possibilities = keys(%available_texts);
1798: my $which =
1799: &Apache::loncommon::languages(\@possibilities) || 'default';
1.497.2.4! foxr 1800: if ($target eq 'tex') {
! 1801: $result = &select_hyphenation($which);
! 1802: }
! 1803: $result .= $available_texts{$which};
1.397 albertel 1804: }
1805: undef(%available_texts);
1806: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1807: return $result;
1808: }
1809:
1.497.2.3 foxr 1810: # <lang [which='language-name'] [other='lang1,lang2...']>
1811: # Specifies that the block contained within it is a translation
1812: # for a specific language specified by the 'which' attribute. The
1813: # 'other' attribute can be used by itself or in conjunction with
1814: # which to specify this tag _may_ be used as a translation for some
1815: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1816: # specifying that the block provides a translation for US (primary)
1817: # Canadian, Australian and UK Englush.
1818: #
1819: # Comment: this seems a bit silly why not just support a list of languages
1820: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1821: #
1822: # Effect:
1823: # The material within the <lang>..</lang> block is stored in the
1824: # specified set of $available_texts hash entries, the appropriate one
1825: # is selected at </translated> time.
1826: #
1827: # Pathalogical case handling:
1828: # If a language occurs multiple times within a <translated> block,
1829: # only the last one is rendered e.g.:
1830: #
1831: # <translated>
1832: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1833: # Red green color blindness is quite common affecting about 7.8% of
1834: # the male population, but onloy about .65% of the female population.
1835: # </lang>
1836: # Red green colour blindness is quite common affecting about 7.8% of
1837: # the male population, but onloy about .65% of the female population.
1838: # <lang which='seniso', other='senisoCA,senisoAU'>
1839: # </translated>
1840: #
1841: # renders the correct spelling of color (colour) for people who have specified
1842: # a preferred language that is one of the British Commonwealth languages
1843: # even though those are also listed as valid selections for the US english
1844: # <lang> block.
1845: #
1.397 albertel 1846: sub start_lang {
1847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1848: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1849: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1850: &Apache::lonxml::startredirection();
1851: }
1852: return '';
1853: }
1854:
1855: sub end_lang {
1856: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1857: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1858: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1859: my $result = &Apache::lonxml::endredirection();
1860: my $which = &Apache::lonxml::get_param('which',$parstack,
1861: $safeeval);
1.431 raeburn 1862: if ($which=~/\w/) {
1863: $available_texts{$which} = $result;
1864: }
1865: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1866: $safeeval);
1867: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1868: if ($language=~/\w/) {
1869: $available_texts{$language} = $result;
1870: }
1.427 bisitz 1871: }
1872:
1.397 albertel 1873: }
1874: return '';
1875: }
1.497.2.3 foxr 1876: } # end langauge block specific tags.
1877:
1.397 albertel 1878:
1.170 www 1879: sub start_instructorcomment {
1.201 albertel 1880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1881:
1882: my $result;
1883:
1.339 albertel 1884: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1885: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1886: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1887: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1888: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1889: $parser,$style);
1.170 www 1890: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1891: }
1892: $result='';
1893: } elsif ($target eq 'edit') {
1894: $result .=&Apache::edit::tag_start($target,$token);
1895: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1896: }
1897: return $result;
1898: }
1899:
1900: sub end_instructorcomment {
1.159 albertel 1901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1902: my $result;
1903: if ($target eq "edit") {
1904: $result.= &Apache::edit::tag_end($target,$token,'');
1905: }
1906: return $result;
1.4 tsai 1907: }
1908:
1909: sub start_while {
1.326 albertel 1910: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1911:
1.160 albertel 1912: my $result;
1.339 albertel 1913: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1914: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1915: my $code = $token->[2]->{'condition'};
1.4 tsai 1916:
1.160 albertel 1917: push( @Apache::structuretags::whileconds, $code);
1918: if (!$Apache::lonxml::default_homework_loaded) {
1919: &Apache::lonxml::default_homework_load($safeeval);
1920: }
1921: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1922: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1923: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1924: push( @Apache::structuretags::whileline, $token->[5]);
1925: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1926: if ( $result ) {
1927: &Apache::lonxml::newparser($parser,\$bodytext);
1928: }
1929: } elsif ($target eq 'edit') {
1930: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1931: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1932: $token,40);
1933: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1934: } elsif ($target eq 'modified') {
1935: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1936: $safeeval,'condition');
1937: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1938: }
1.160 albertel 1939: return $result;
1.4 tsai 1940: }
1941:
1942: sub end_while {
1.159 albertel 1943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1944: my $result;
1945:
1.339 albertel 1946: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1947: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1948: my $code = pop(@Apache::structuretags::whileconds);
1949: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1950: my $line = pop(@Apache::structuretags::whileline);
1951: my $return = &Apache::run::run($code,$safeeval);
1952: my $starttime=time;
1953: my $error=0;
1954: while ($return) {
1955: if (time-$starttime >
1956: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1957: $return = 0; $error=1; next;
1.161 albertel 1958: }
1959: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1960: if ($target eq 'grade' || $target eq 'answer' ||
1961: $target eq 'analyze') {
1962: # grade/answer/analyze should produce no output but if we
1963: # are redirecting, the redirecter should know what to do
1964: # with the output
1965: if (!$Apache::lonxml::redirection) { undef($result); }
1966: }
1.161 albertel 1967: $return = &Apache::run::run($code,$safeeval);
1968: }
1969: if ($error) {
1.430 bisitz 1970: &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 1971: }
1972: } elsif ($target eq "edit") {
1973: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1974: }
1.160 albertel 1975: return $result;
1.1 albertel 1976: }
1.6 tsai 1977:
1.160 albertel 1978: # <randomlist show="1">
1.6 tsai 1979: # <tag1>..</tag1>
1980: # <tag2>..</tag2>
1981: # <tag3>..</tag3>
1.160 albertel 1982: # ...
1.6 tsai 1983: # </randomlist>
1984: sub start_randomlist {
1.326 albertel 1985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1986: my $result;
1.339 albertel 1987: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1988: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1989: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1990: my $b_parser= HTML::LCParser->new(\$body);
1991: $b_parser->xml_mode(1);
1992: $b_parser->marked_sections(1);
1.159 albertel 1993: my $b_tok;
1994: my @randomlist;
1995: my $list_item;
1996: while($b_tok = $b_parser->get_token() ) {
1997: if($b_tok->[0] eq 'S') { # start tag
1998: # get content of the tag until matching end tag
1999: # get all text upto the matching tag
2000: # and push the content into @randomlist
2001: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2002: $b_parser);
2003: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2004: push(@randomlist,$list_item);
2005: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2006: # $list_item</b>";
2007: }
2008: if($b_tok->[0] eq 'T') { # text
2009: # what to do with text in between tags?
2010: # print "<b>TEXT $b_tok->[1]</b><br />";
2011: }
2012: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2013: # print "<b>END-TAG $b_tok->[1]</b><br />";
2014: # }
2015: }
1.303 albertel 2016: if (@randomlist) {
2017: my @idx_arr = (0 .. $#randomlist);
2018: &Apache::structuretags::shuffle(\@idx_arr);
2019: my $bodytext = '';
2020: my $show=$#randomlist;
2021: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2022: $showarg--;
2023: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2024: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2025: my @currlist;
2026: my $part = $Apache::inputtags::part;
2027: if ($part ne '') {
2028: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2029: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2030: if (!(grep(/^\Q$part\E$/,@currlist))) {
2031: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2032: }
2033: } else {
2034: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2035: }
2036: }
2037: }
1.303 albertel 2038: for(0 .. $show) {
2039: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2040: }
2041: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2042: }
2043: } elsif ($target eq 'edit' ) {
2044: $result .=&Apache::edit::tag_start($target,$token);
2045: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2046: $token,5);
2047: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2048: } elsif ($target eq 'modified' ) {
2049: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2050: $safeeval,'show');
2051: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2052: }
2053: return $result;
1.7 tsai 2054: }
2055:
2056: sub shuffle {
2057: my $a=shift;
2058: my $i;
1.303 albertel 2059: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2060: &Apache::response::pushrandomnumber();
1.159 albertel 2061: for($i=@$a;--$i;) {
2062: my $j=int(&Math::Random::random_uniform() * ($i+1));
2063: next if $i == $j;
2064: @$a[$i,$j] = @$a[$j,$i];
2065: }
1.251 albertel 2066: &Apache::response::poprandomnumber();
1.7 tsai 2067: }
1.6 tsai 2068: }
2069:
2070: sub end_randomlist {
1.159 albertel 2071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2072: my $result;
2073: if ($target eq 'edit' ) {
2074: $result=&Apache::edit::tag_end($target,$token,
2075: 'End Randomly Parsed Block');
2076: }
2077: return $result;
1.6 tsai 2078: }
2079:
1.283 albertel 2080: sub ordered_show_check {
2081: my $last_part=$Apache::inputtags::partlist[-2];
2082: my $in_order=
2083: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2084: my $in_order_show=1;
2085: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2086: $in_order_show=&Apache::response::check_status($last_part);
2087: }
2088: return $in_order_show;
2089: }
2090:
1.469 www 2091:
2092: sub start_startpartmarker {
2093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2094: my $result='';
2095: if ($target eq 'edit') {
2096: $result=&Apache::edit::tag_start($target,$token);
2097: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2098: $result.=&Apache::edit::end_table();
2099:
2100: }
2101: return $result;
2102: }
2103:
2104: sub end_startpartmarker {
2105: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2106: my @result;
2107: if ($target eq 'edit') { $result[1]='no'; }
2108: return @result;
2109: }
2110:
2111: sub start_endpartmarker {
2112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2113: my $result='';
2114: if ($target eq 'edit') {
2115: $result=&Apache::edit::tag_start($target,$token);
2116: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2117: $result.=&Apache::edit::end_table();
2118:
2119: }
2120: return $result;
2121: }
2122:
2123: sub end_endpartmarker {
2124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2125: my @result;
2126: if ($target eq 'edit') { $result[1]='no'; }
2127: return @result;
2128: }
2129:
2130:
2131:
2132:
2133:
1.11 albertel 2134: sub start_part {
1.326 albertel 2135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2136: if (!$Apache::lonxml::metamode) {
2137: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2138: # duedates.
2139: }
1.159 albertel 2140: my $result='';
1.386 albertel 2141: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2142: $Apache::inputtags::part=$id;
1.177 albertel 2143: push(@Apache::inputtags::partlist,$id);
2144: @Apache::inputtags::response=();
1.159 albertel 2145: @Apache::inputtags::previous=();
2146: @Apache::inputtags::previous_version=();
1.405 albertel 2147: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2148: &Apache::response::reset_params();
2149:
1.159 albertel 2150: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2151: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2152: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2153: my $in_order_show=&ordered_show_check();
1.214 albertel 2154: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2155: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2156: &Apache::run::run($expression,$safeeval);
1.159 albertel 2157:
2158: if ($target eq 'meta') {
1.224 www 2159: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2160: return &Apache::response::mandatory_part_meta.
2161: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2162: } elsif ($target eq 'web' || $target eq 'grade' ||
2163: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2164: if ($hidden || !$in_order_show) {
1.326 albertel 2165: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2166: } else {
2167: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2168: push (@Apache::inputtags::status,$status);
2169: my $expression='$external::datestatus="'.$status.'";';
2170: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2171: &Apache::run::run($expression,$safeeval);
1.284 albertel 2172: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2173: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2174: }
1.216 albertel 2175: if (( $status eq 'CLOSED' ) ||
2176: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2177: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2178: ( $status eq 'BANNED') ||
2179: ( $status eq 'UNAVAILABLE') ||
2180: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2181: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2182: $style);
1.159 albertel 2183: if ( $target eq "web" ) {
1.211 albertel 2184: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2185: } elsif ( $target eq 'tex' ) {
1.284 albertel 2186: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2187: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2188: } else {
1.211 albertel 2189: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2190: }
1.159 albertel 2191: }
2192: } else {
2193: if ($target eq 'tex') {
1.284 albertel 2194: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2195: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2196: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2197: } else {
2198: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2199: }
1.195 sakharuk 2200: }
1.159 albertel 2201: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2202: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2203: my @allkeys = split /,/,$allkeys;
2204: my $allow_print_points = 0;
2205: foreach my $partial_key (@allkeys) {
1.230 albertel 2206: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2207: if ($1 ne '0') {$allow_print_points=1;}
2208: }
2209: }
1.275 albertel 2210: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2211: if (defined($maxtries) && $maxtries < 0) {
2212: $allow_print_points=0;
2213: }
1.302 albertel 2214: if (lc($env{'course.'.$env{'request.course.id'}.
2215: '.disableexampointprint'}) eq 'yes') {
2216: $allow_print_points=0;
2217: }
1.463 foxr 2218: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2219: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2220:
2221: }
1.233 www 2222: } elsif ($target eq 'web') {
1.479 raeburn 2223: if ($status eq 'CAN_ANSWER') {
2224: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2225: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2226: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2227: my $num = scalar(@Apache::inputtags::partlist)-1;
2228: if ($probrandomize eq 'randomizetry') {
2229: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2230: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2231: } else {
2232: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2233: if ($probrandtries ne $reqtries) {
2234: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2235: }
2236: }
2237: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2238: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2239: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2240: }
2241: }
1.475 raeburn 2242: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2243: }
2244: }
2245: }
2246: } elsif ($target eq 'edit') {
2247: $result.=&Apache::edit::tag_start($target,$token);
2248: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2249: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2250: ' '.
2251: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2252: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2253: } elsif ($target eq 'modified') {
2254: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2255: $safeeval,'id','display');
1.159 albertel 2256: if ($constructtag) {
1.225 albertel 2257: #limiting ids to only letters numbers, and space
1.224 www 2258: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2259: $result = &Apache::edit::rebuild_tag($token);
2260: }
2261: }
2262: return $result;
1.11 albertel 2263: }
2264:
2265: sub end_part {
1.159 albertel 2266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2267: &Apache::lonxml::debug("in end_part $target ");
2268: my $status=$Apache::inputtags::status['-1'];
2269: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2270: my $in_order_show=&ordered_show_check();
1.321 albertel 2271: my $result;
2272: if (!$Apache::lonxml::metamode) {
2273: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2274: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2275: }
1.312 albertel 2276: if ($target eq 'grade') {
1.249 albertel 2277: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2278: !$hidden && $in_order_show) {
1.311 foxr 2279: $result.=&Apache::inputtags::grade;
1.249 albertel 2280: } else {
2281: # move any submission data to .hidden
2282: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2283: }
1.283 albertel 2284: } elsif (($target eq 'web' || $target eq 'tex') &&
2285: !$hidden && $in_order_show) {
1.159 albertel 2286: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2287: $target);
1.490 raeburn 2288: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2289: ($env{'form.grade_imsexport'})) {
1.212 albertel 2290: $gradestatus='';
2291: }
1.311 foxr 2292: $result.=$gradestatus;
1.265 sakharuk 2293: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2294: } elsif ($target eq 'edit') {
1.311 foxr 2295: $result.=&Apache::edit::end_table();
1.322 albertel 2296: } elsif ($target eq 'modified') {
2297: $result .= $token->[2];
1.159 albertel 2298: }
2299: pop @Apache::inputtags::status;
2300: $Apache::inputtags::part='';
1.295 albertel 2301: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2302: return $result;
1.11 albertel 2303: }
1.1 albertel 2304:
1.25 albertel 2305: sub start_preduedate {
1.326 albertel 2306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2307: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2308: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2309: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2310: if (!$Apache::lonhomework::scantronmode &&
2311: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2312: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2313: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2314: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2315: }
1.24 albertel 2316: }
1.159 albertel 2317: return '';
1.24 albertel 2318: }
2319:
1.25 albertel 2320: sub end_preduedate {
1.159 albertel 2321: return '';
1.24 albertel 2322: }
2323:
1.369 foxr 2324: # In all the modes where <postanswerdate> text is
2325: # displayable, all we do is eat up the text between the start/stop
2326: # tags if the conditions are not right to display it.
1.25 albertel 2327: sub start_postanswerdate {
1.326 albertel 2328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2329: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2330: &Apache::lonnet::allowed('pav',
2331: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2332: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2333: $target eq 'tex' ) {
1.300 albertel 2334: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2335: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2336: (($target eq 'tex') && !$pav)) {
1.326 albertel 2337: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2338: }
2339: }
2340: return '';
1.24 albertel 2341: }
2342:
1.25 albertel 2343: sub end_postanswerdate {
1.159 albertel 2344: return '';
1.24 albertel 2345: }
2346:
1.25 albertel 2347: sub start_notsolved {
1.326 albertel 2348: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2349: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2350: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2351: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2352: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2353: if ($gradestatus =~ /^correct/ &&
2354: &Apache::response::show_answer()) {
1.159 albertel 2355: &Apache::lonxml::debug("skipping");
1.326 albertel 2356: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2357: }
1.24 albertel 2358: }
1.159 albertel 2359: return '';
1.24 albertel 2360: }
2361:
1.25 albertel 2362: sub end_notsolved {
1.159 albertel 2363: return '';
1.24 albertel 2364: }
2365:
2366: sub start_solved {
1.326 albertel 2367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2368: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2369: $target eq 'tex') {
2370: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2371: if ($gradestatus !~ /^correct/ ||
2372: !&Apache::response::show_answer()) {
1.326 albertel 2373: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2374: }
1.24 albertel 2375: }
1.159 albertel 2376: return '';
1.24 albertel 2377: }
2378:
2379: sub end_solved {
1.248 albertel 2380: return '';
2381: }
2382:
2383: sub start_problemtype {
1.326 albertel 2384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2385: my $result;
1.339 albertel 2386: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2387: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2388: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2389: if (!defined($mode)) { $mode='show'; }
2390: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2391: my $found=0;
2392: foreach my $type (split(',',$for)) {
2393: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2394: }
2395: if ($mode eq 'show' && !$found) {
1.326 albertel 2396: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2397: }
2398: if ($mode eq 'hide' && $found) {
1.326 albertel 2399: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2400: }
2401: } elsif ($target eq 'edit') {
2402: $result .=&Apache::edit::tag_start($target,$token);
2403: $result.=&Apache::edit::select_arg('Mode:','mode',
2404: [['show','Show'],
2405: ['hide','Hide']]
2406: ,$token);
2407: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2408: [ ['exam','Exam/Quiz Problem'],
2409: ['survey','Survey'],
1.465 raeburn 2410: ['surveycred','Survey (with credit)'],
2411: ['anonsurvey','Anonymous Survey'],
2412: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2413: ['problem','Homework Problem'],
1.479 raeburn 2414: ['practice','Practice Problem'],
2415: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2416: ,$token);
2417: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2418: } elsif ($target eq 'modified') {
2419: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2420: $safeeval,'mode','for');
2421: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2422: }
2423: return $result;
2424: }
2425:
2426: sub end_problemtype {
1.159 albertel 2427: return '';
1.24 albertel 2428: }
1.34 albertel 2429:
2430: sub start_startouttext {
1.159 albertel 2431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2432: my @result=(''.'');
2433: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2434:
2435: my $nesting =
2436: &Apache::lonxml::set_state('outtext',
2437: &Apache::lonxml::get_state('outtext')+1);
2438: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2439: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2440: }
1.159 albertel 2441: return (@result);
1.34 albertel 2442: }
1.159 albertel 2443:
1.34 albertel 2444: sub end_startouttext {
1.326 albertel 2445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2446: my $result='';
2447: my $text='';
2448: if ($target eq 'edit') {
1.424 foxr 2449: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2450: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2451: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2452: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2453: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2454: .'</span></td>'
2455: .'<td align="left"><span id="math_'.$areaid.'" />'
2456: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2457: .'<span></td>'
2458: .'<td>'
2459: .&Apache::edit::insertlist($target,$token)
2460: .'</td>'
2461: .'<td align="right" valign="top">' .
2462: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2463: &Apache::edit::end_row().
1.362 albertel 2464: &Apache::edit::start_spanning_row()."\n".
1.255 www 2465: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2466: }
2467: if ($target eq 'modified') {
1.219 albertel 2468: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2469: }
2470: if ($target eq 'tex') {
2471: $result .= '\noindent ';
2472: }
2473: return $result;
1.34 albertel 2474: }
1.159 albertel 2475:
1.34 albertel 2476: sub start_endouttext {
1.159 albertel 2477: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2478: my $result='';
2479: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2480: if ($target eq "modified") {
2481: $result='<endouttext />'.
1.377 albertel 2482: &Apache::edit::handle_insertafter('startouttext');
2483: }
1.404 albertel 2484:
2485: my $nesting =
2486: &Apache::lonxml::set_state('outtext',
2487: &Apache::lonxml::get_state('outtext')-1);
2488: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2489: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2490: &Apache::lonxml::set_state('outtext', 0);
2491: }
1.159 albertel 2492: return $result;
1.34 albertel 2493: }
1.159 albertel 2494:
1.34 albertel 2495: sub end_endouttext {
1.159 albertel 2496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2497: my @result=('','');
2498: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2499: return (@result);
1.34 albertel 2500: }
1.159 albertel 2501:
1.45 albertel 2502: sub delete_startouttext {
1.326 albertel 2503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2504: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2505: my $text=$$parser['-1']->get_text("/endouttext");
2506: my $ntoken=$$parser['-1']->get_token();
2507: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2508: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2509: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2510: # they did the last time round
2511: &Apache::lonxml::increasedepth($ntoken);
2512: &Apache::lonxml::decreasedepth($ntoken);
2513: return 1;
1.193 www 2514: }
2515:
2516: sub start_simpleeditbutton {
2517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2518: my $result='';
1.284 albertel 2519: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2520: ($target eq 'web') &&
1.330 albertel 2521: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2522: my $url=$env{'request.noversionuri'};
1.193 www 2523: $url=~s/\?.*$//;
1.367 albertel 2524: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2525: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2526: # $result='<p class="LC_warning">'
2527: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2528: # .&Apache::loncommon::help_open_topic('Caching')
2529: # .'</p>';
1.486 www 2530: $result.=&Apache::loncommon::head_subbox(
2531: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2532: .&Apache::lonhtmlcommon::add_item_funclist(
2533: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2534: .&mt('Edit').'</a>')
1.486 www 2535: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2536:
1.193 www 2537: }
2538: return $result;
2539: }
2540:
2541: sub end_simpleeditbutton {
2542: return '';
1.45 albertel 2543: }
1.34 albertel 2544:
1.428 raeburn 2545: sub practice_problem_header {
2546: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2547: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2548: '</span>';
2549: }
2550:
1.479 raeburn 2551: sub randomizetry_problem_header {
2552: my ($problemstatus,$reqtries) = @_;
2553: my ($header,$text);
2554: if ($reqtries > 1) {
2555: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2556: if (($problemstatus eq 'no') ||
2557: ($problemstatus eq 'no_feedback_ever')) {
2558: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2559: } else {
2560: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2561: }
2562: } else {
2563: $header = &mt('New Problem Variation Each Try');
2564: if (($problemstatus eq 'no') ||
2565: ($problemstatus eq 'no_feedback_ever')) {
2566: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2567:
2568: } else {
2569: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2570: }
2571: }
2572: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2573: '<span class="LC_info">'.$text.'</span><hr />';
2574: }
2575:
2576: sub randomizetry_part_header {
2577: my ($problemstatus,$reqtries,$num) = @_;
2578: my ($header,$text);
2579: if ($reqtries eq 'none') {
2580: $header = &mt('No Question Variation');
2581: $text = &mt('For this question there will no new variation after a try.');
2582: } elsif ($reqtries > 1) {
2583: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2584: if (($problemstatus eq 'no') ||
2585: ($problemstatus eq 'no_feedback_ever')) {
2586: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2587: } else {
2588: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2589: }
2590: } else {
2591: $header = &mt('New Question Variation For Each Try');
2592: if (($problemstatus eq 'no') ||
2593: ($problemstatus eq 'no_feedback_ever')) {
2594: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2595: } else {
2596: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2597: }
2598: }
2599: my $output;
2600: if ($num > 1) {
2601: $output .= '<hr />';
2602: }
2603: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2604: '<span class="LC_info">'.$text.'</span><br /><br />';
2605: return $output;
2606: }
2607:
1.1 albertel 2608: 1;
2609: __END__
1.435 jms 2610:
2611: =pod
2612:
2613: =back
2614:
2615: =cut
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