Annotation of loncom/homework/structuretags.pm, revision 1.497.2.6
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.497.2.6! foxr 4: # $Id: structuretags.pm,v 1.497.2.5 2011/12/26 13:45:10 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();
1.497.2.6! foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &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 71: }
72:
1.497.2.4 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
1.497.2.5 foxr 100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
1.497.2.4 foxr 101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
1.497.2.5 foxr 106: my $babel_hyphenation = "\\selectlanguage{$language}";
1.497.2.4 foxr 107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
1.497.2.6! foxr 114: # Selects hyphenation based on the current problem metadata.
! 115: # This requires that
! 116: # - There is a language metadata item set for the problem.
! 117: # - The language has a latex/babel hyphenation.
! 118: #
! 119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
! 120: # this problem.
! 121: # @return string (possibly empty).
! 122: # @retval If not empty an appropriate \selectlanguage{} directive.
! 123: #
! 124: sub select_metadata_hyphenation {
! 125: my $uri = $Apache::lonxml::request->uri;
! 126: my $language = &Apache::lonnet::metadata($uri, 'language');
! 127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
! 128: if ($latex_language) {
! 129: return '\selectlanguage{'.$latex_language."}\n";
! 130: }
! 131: return ''; # no latex hyphenation or no lang metadata.
! 132: }
! 133:
! 134:
! 135: ##
1.497.2.4 foxr 136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
1.497.2.5 foxr 159: my @languages = (keys(%languages_required));
1.497.2.4 foxr 160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
227: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 228: &setmode_javascript().
1.400 albertel 229: <<'JS';
230: <script type="text/javascript">
1.483 raeburn 231: // <![CDATA[
1.494 raeburn 232: function setSubmittedPart (part,prefix) {
233: if (typeof(prefix) == 'undefined') {
234: this.document.lonhomework.submitted.value="part_"+part;
235: } else {
236: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
237: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
238: this.document.lonhomework.elements[i].value="part_"+part;
239: }
240: }
241: }
1.400 albertel 242: }
243:
244: function image_response_click (which, e) {
245: init_geometry();
246: if (!e) { e = window.event; } //IE
247: var input_element = document.lonhomework.elements[which];
1.401 albertel 248: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 249: var token = token_element.value;
1.401 albertel 250: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 251: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
252: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
253: var click = x+':'+y;
254: input_element.value = click;
1.485 raeburn 255: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 256: }
1.483 raeburn 257: // ]]>
1.400 albertel 258: </script>
259: JS
260: }
261:
1.416 raeburn 262: sub setmode_javascript {
263: return <<"ENDSCRIPT";
264: <script type="text/javascript">
1.485 raeburn 265: // <![CDATA[
1.416 raeburn 266: function setmode(form,probmode) {
267: form.problemmode.value = probmode;
268: form.submit();
269: }
1.485 raeburn 270: // ]]>
1.416 raeburn 271: </script>
272: ENDSCRIPT
273: }
274:
1.48 albertel 275: sub page_start {
1.345 albertel 276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
277: $extra_head)=@_;
1.159 albertel 278: my %found;
1.207 albertel 279: foreach my $taginside (@$tagstack) {
1.159 albertel 280: foreach my $taglookedfor ('html','body','form') {
281: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
282: }
283: }
284:
1.343 albertel 285: if ($target eq 'tex') {
286: return
287: &Apache::londefdef::start_html($target,$token,$tagstack,
288: $parstack,$parser,$safeeval);
289: }
290:
1.474 raeburn 291: $extra_head .= &homework_js().
292: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
293: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
294: my %textarea_args = (
295: dragmath => 'math',
296: );
297: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 298: }
1.478 raeburn 299: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 300: my $needs_upload;
1.495 raeburn 301: my ($symb)= &Apache::lonnet::whichuser();
302: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 303: if ($is_task) {
1.495 raeburn 304: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 305: } else {
306: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 307: unless ($env{'request.state'} eq 'construct') {
308: my $navmap = Apache::lonnavmaps::navmap->new();
309: if (ref($navmap)) {
310: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 311: my $is_page;
312: if (ref($mapres)) {
313: $is_page = $mapres->is_page();
314: }
315: unless ($is_page) {
1.495 raeburn 316: $needs_upload = 1;
317: }
318: }
319: }
1.493 raeburn 320: } else {
321: unless ($env{'request.state'} eq 'construct') {
322: my $navmap = Apache::lonnavmaps::navmap->new();
323: if (ref($navmap)) {
1.495 raeburn 324: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 325: my $is_page;
326: if (ref($mapres)) {
327: $is_page = $mapres->is_page();
328: }
329: unless ($is_page) {
1.495 raeburn 330: my $res = $navmap->getBySymb($symb);
331: if (ref($res)) {
332: my $partlist = $res->parts();
333: if (ref($partlist) eq 'ARRAY') {
334: foreach my $part (@{$partlist}) {
335: my @types = $res->responseType($part);
336: my @ids = $res->responseIds($part);
337: for (my $i=0; $i < scalar(@ids); $i++) {
338: if ($types[$i] eq 'essay') {
339: my $partid = $part.'_'.$ids[$i];
340: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
341: $needs_upload = 1;
342: last;
343: }
1.493 raeburn 344: }
345: }
346: }
1.495 raeburn 347: }
348: }
1.493 raeburn 349: }
350: }
351: }
352: }
1.495 raeburn 353: if ($needs_upload) {
354: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
355: }
1.478 raeburn 356: }
1.425 raeburn 357:
1.344 albertel 358: my %body_args;
359: if (defined($found{'html'})) {
360: $body_args{'skip_phases'}{'head'}=1;
361: } else {
1.343 albertel 362:
1.345 albertel 363: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 364:
1.379 albertel 365: $extra_head .= &Apache::londefdef::generate_css_links();
366:
1.384 albertel 367: if ($env{'request.state'} eq 'construct') {
1.343 albertel 368: $extra_head.=&Apache::edit::js_change_detection().
369: "<script type=\"text/javascript\">\n".
370: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
371: &Apache::loncommon::browser_and_searcher_javascript().
372: "\n</script>\n";
373: }
1.159 albertel 374: }
1.343 albertel 375:
1.446 bisitz 376: my $pageheader = '';
1.344 albertel 377: if (defined($found{'body'})) {
378: $body_args{'skip_phases'}{'body'}=1;
379: } elsif (!defined($found{'body'})
380: && $env{'request.state'} eq 'construct') {
1.343 albertel 381: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 382: # Breadcrumbs for Construction Space
383: &Apache::lonhtmlcommon::clear_breadcrumbs();
384: &Apache::lonhtmlcommon::add_breadcrumb({
385: 'text' => 'Construction Space',
1.497 raeburn 386: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 387: });
1.460 droeschl 388: # breadcrumbs (and tools) will be created
389: # in start_page->bodytag->innerregister
390:
1.450 bisitz 391: # FIXME Where are we?
392: # &Apache::lonhtmlcommon::add_breadcrumb({
393: # 'text' => 'Problem Editing', # 'Problem Testing'
394: # 'href' => '',
395: # });
1.460 droeschl 396: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 397: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 398: }
1.272 albertel 399: } elsif (!defined($found{'body'})) {
1.343 albertel 400: my %add_entries;
1.159 albertel 401: my $background=&Apache::lonxml::get_param('background',$parstack,
402: $safeeval);
1.343 albertel 403: if ($background ne '' ) {
404: $add_entries{'background'} = $background;
405: }
1.344 albertel 406:
1.290 albertel 407: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
408: $safeeval);
1.446 bisitz 409: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 410:
1.446 bisitz 411: $body_args{'bgcolor'} = $bgcolor;
412: # $body_args{'no_title'} = 1;
413: $body_args{'force_register'} = 1;
414: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 415: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 416: $body_args{'only_body'} = 1;
417: }
1.344 albertel 418: }
1.365 albertel 419: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 420: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
421: \%body_args);
1.446 bisitz 422: $page_start .= $pageheader;
1.462 raeburn 423: if (!defined($found{'body'})
424: && $env{'request.state'} ne 'construct'
425: && ($target eq 'web' || $target eq 'webgrade')) {
426:
427: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
428: if ($symb eq '' && !$publicuser) {
429: $page_start .= '<p class="LC_info">'
430: .&mt('Browsing resource, all submissions are temporary.')
431: .'</p>';
1.457 bisitz 432: }
1.344 albertel 433: }
434:
1.409 albertel 435: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 436: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 437: }
438: my $form_tag_start;
439: if (!defined($found{'form'})) {
1.337 albertel 440: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 441: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 442: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 443: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 444: $form_tag_start.=$uri.'" ';
445: if ($target eq 'edit') {
446: $form_tag_start.=&Apache::edit::form_change_detection();
447: }
1.493 raeburn 448: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
449: my ($path,$multiresp) =
450: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 451: if (($is_task) || ($needs_upload)) {
452: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 453: }
1.368 albertel 454: $form_tag_start.='>'."\n";
1.355 albertel 455:
456: my $symb=&Apache::lonnet::symbread();
457: if ($symb =~ /\S/) {
458: $symb=
459: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
460: $form_tag_start.=
1.368 albertel 461: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 462: }
1.159 albertel 463: }
1.343 albertel 464: return ($page_start,$form_tag_start);
1.105 albertel 465: }
466:
1.141 matthew 467: #use Time::HiRes();
1.105 albertel 468: sub get_resource_name {
1.159 albertel 469: my ($parstack,$safeeval)=@_;
1.388 foxr 470: my $name;
1.204 albertel 471: if (defined($Apache::lonhomework::name)) {
1.388 foxr 472: $name = $Apache::lonhomework::name;
473: } else {
474: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 475: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 476: if ($name eq '') {
477: $name=&Apache::lonnet::EXT('resource.title');
478: if ($name eq 'con_lost') { $name = ''; }
479: }
480: if ($name!~/\S+/) {
481: $name=$env{'request.uri'};
482: $name=~s-.*/([^/]+)$-$1-;
483: }
484: # The name has had html tags escaped:
485:
486: $name=~s/</</gs;
487: $name=~s/>/>/gs;
488:
489: $Apache::lonhomework::name=$name;
1.204 albertel 490: }
1.159 albertel 491: return $name;
1.105 albertel 492: }
493:
494: sub setup_rndseed {
1.479 raeburn 495: my ($safeeval,$target)=@_;
1.367 albertel 496: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 497: my ($questiontype,$set_safespace,$rndseed);
498: if ($target eq 'analyze') {
499: $questiontype = $env{'form.grade_questiontype'};
500: }
501: unless (defined($questiontype)) {
502: $questiontype = $Apache::lonhomework::type;
503: }
1.333 albertel 504: if ($env{'request.state'} eq "construct"
505: || $symb eq ''
506: || $Apache::lonhomework::type eq 'practice'
507: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 508: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 509: ['rndseed']);
1.284 albertel 510: $rndseed=$env{'form.rndseed'};
1.159 albertel 511: if (!$rndseed) {
1.162 albertel 512: $rndseed=$Apache::lonhomework::history{'rndseed'};
513: if (!$rndseed) {
514: $rndseed=time;
515: }
1.284 albertel 516: $env{'form.rndseed'}=$rndseed;
1.162 albertel 517: }
1.479 raeburn 518: if (($env{'request.state'} eq "construct") &&
519: ($Apache::lonhomework::type eq 'randomizetry')) {
520: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
521: if ($tries) {
522: $rndseed += $tries;
523: }
1.480 raeburn 524: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 525: }
1.374 albertel 526: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
527: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 528: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 529: srand(time);
530: $rndseed=int(rand(2100000000));
1.284 albertel 531: $env{'form.rndseed'}=$rndseed;
532: delete($env{'form.resetdata'});
533: delete($env{'form.newrandomization'});
1.159 albertel 534: }
1.488 www 535: $rndseed=~s/\,/\:/g;
536: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 537: if (defined($rndseed)) {
538: my ($c1,$c2)=split(/\:/,$rndseed);
539: unless ($c2) { $c2=0; }
540: unless (($c1==int($c1)) && ($c2==int($c2))) {
541: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
542: }
1.187 albertel 543: }
1.247 albertel 544: if ($Apache::lonhomework::history{'resource.CODE'}) {
545: $rndseed=&Apache::lonnet::rndseed();
546: }
1.479 raeburn 547: $set_safespace = 1;
548: } elsif ($questiontype eq 'randomizetry') {
549: if ($target eq 'analyze') {
550: if (defined($env{'form.grade_rndseed'})) {
551: $rndseed = $env{'form.grade_rndseed'};
552: }
553: }
554: unless (($target eq 'analyze') && (defined($rndseed))) {
555: $rndseed=&Apache::lonnet::rndseed();
556: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
557: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
558: $curr_try ++;
559: }
560: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
561: $rndseed = $1;
562: }
563: if ($curr_try) {
564: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
565: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
566: my $inc = int(($curr_try-1)/$reqtries);
567: $rndseed += $inc;
568: } else {
569: $rndseed += $curr_try;
570: }
571: }
572: }
573: $set_safespace = 1;
574: }
575: if ($set_safespace) {
576: if ($safeeval) {
577: &Apache::lonxml::debug("Setting rndseed to $rndseed");
578: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
579: }
580: }
581: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
582: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 583: }
584: return $rndseed;
1.105 albertel 585: }
586:
1.268 albertel 587: sub remember_problem_state {
588: return '
1.284 albertel 589: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
590: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
591: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 592: }
593:
1.487 www 594: sub problem_edit_action_button {
595: my ($name,$action,$accesskey,$text,$flag)=@_;
596: my $actionscript="setmode(this.form,'$action')";
597: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
598: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
599: }
600:
1.423 www 601: sub problem_edit_buttons {
1.487 www 602: my ($mode)=@_;
603: # Buttons that do not save
604: my $result='<div class="LC_edit_problem_discards">'.
605: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
606: if ($mode eq 'editxml') {
607: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
608: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
609: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
610: } else {
611: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
612: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
613: }
614: $result.="\n</div>";
615: # Buttons that save
616: $result.='<div class="LC_edit_problem_saves">';
617: if ($mode eq 'editxml') {
618: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
619: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
620: } else {
621: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
622: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
623: }
624: $result.="\n</div>\n";
625: return $result;
1.423 www 626: }
627:
628: sub problem_edit_header {
1.487 www 629: return '<input type="hidden" name="submitted" value="edit" />'.
630: &remember_problem_state('edit').'
1.423 www 631: <div class="LC_edit_problem_header">
632: <div class="LC_edit_problem_header_title">
633: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
634: </div>'.
1.487 www 635: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 636: &problem_edit_buttons().'
1.459 bisitz 637: <hr style="clear:both;" />
1.409 albertel 638: '.&Apache::lonxml::message_location().'
1.408 albertel 639: </div>
640: '.
1.458 bisitz 641: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 642: }
643:
644: sub problem_edit_footer {
1.412 albertel 645: return '</td></tr></table><br />
646: <div class="LC_edit_problem_footer">
1.453 bisitz 647: <hr />'.
1.423 www 648: &problem_edit_buttons().'
1.459 bisitz 649: <hr style="clear:both;" />
1.412 albertel 650: </div>
651: '.
1.342 albertel 652: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 653: }
654:
1.235 albertel 655: sub option {
656: my ($value,$name) = @_;
657: my $result ="<option value='".$value."' ";
1.284 albertel 658: if ($env{'form.'.$name} eq $value) {
1.235 albertel 659: $result.=" selected='on' ";
660: }
661: $result.='>';
662: return $result;
663: }
664:
1.105 albertel 665: sub problem_web_to_edit_header {
1.159 albertel 666: my ($rndseed)=@_;
1.406 albertel 667: my $result .= '<div class="LC_edit_problem_header">';
668:
669: if (!$Apache::lonhomework::parsing_a_task) {
670: $result .=
671: '<div class="LC_edit_problem_header_title">'.
672: &mt('Problem Testing').
673: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
674: '</div>';
675: } else {
676: $result .=
677: '<div class="LC_edit_problem_header_title">'.
678: &mt('Task Testing').
679: '</div>';
680: }
681:
1.315 albertel 682: my $show_all_foils_text =
683: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 684: &mt('Show All Instances')
685: : &mt('Show All Foils');
1.315 albertel 686:
1.452 bisitz 687: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
688: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 689: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 690: $show_all.= ' /> '.$show_all_foils_text
691: .'</label></span>';
1.406 albertel 692:
693:
1.384 albertel 694:
1.406 albertel 695: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 696: if (!$Apache::lonhomework::parsing_a_task) {
697: $result.="
1.406 albertel 698: <div class='LC_edit_problem_header_row1'>
699: <span class=\"LC_nobreak\">
1.405 albertel 700: ".&mt("Problem Status:")."
1.235 albertel 701: <select name='problemstate'>
1.270 albertel 702: <option value=''></option>
1.235 albertel 703: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
704: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
705: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
706: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
707: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
708: </select>
1.406 albertel 709: </span>
710: <span class=\"LC_nobreak\">
1.405 albertel 711: ".&mt("Problem Type:")."
1.235 albertel 712: <select name='problemtype'>
1.270 albertel 713: <option value=''></option>
1.242 albertel 714: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 715: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 716: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 717: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
718: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
719: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 720: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 721: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 722: </select>
1.406 albertel 723: </span>
724: $show_all
725: </div>
726: <div class='LC_edit_problem_header_row2'>
727: <span class=\"LC_nobreak\">
1.405 albertel 728: ".&mt("Feedback Mode:")."
1.235 albertel 729: <select name='problemstatus'>
730: <option value=''></option>
1.242 albertel 731: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 732: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
733: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 734: </select>
1.406 albertel 735: </span>
736: ";
737:
1.376 albertel 738: } elsif ($Apache::lonhomework::parsing_a_task) {
739: $result.="
1.406 albertel 740: <div class='LC_edit_problem_header_row1'>
741: <span class=\"LC_nobreak\">
1.405 albertel 742: ".&mt("Problem Status:")."
1.376 albertel 743: <select name='problemstate'>
744: <option value=''></option>
745: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
746: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
747: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
748: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
749: </select>
1.406 albertel 750: </span>
751: $show_all
752: ";
753: }
754: $result.='
755: <span class="LC_nobreak">
756: '.&mt('Apply style file: ').'
757: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
758: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
759: </span>
1.422 www 760: </div>
761: <div class="LC_edit_problem_header_row1">'.
762: &Apache::lonxml::renderingoptions().'
1.406 albertel 763: </div>
764: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
765: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
766: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
767: </div>
1.453 bisitz 768: <hr />
1.406 albertel 769: <div class="LC_edit_problem_header_randomize_row">
770: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
771: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 772: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 773: $rndseed.'"
774: onchange="javascript:document.lonhomework.changerandseed.click()" />';
775:
776: if (!$Apache::lonhomework::parsing_a_task) {
777: my $numtoanalyze=$env{'form.numtoanalyze'};
778: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 779: $result .= '<span class="LC_nobreak">'.
780: &mt('[_1] for [_2] versions.',
1.416 raeburn 781: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 782: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
783: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 784: $numtoanalyze.'" size="5" />').
785: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
786: '</span>';
787:
1.313 albertel 788: }
1.406 albertel 789:
790: $result.='
791: </div>
1.453 bisitz 792: <hr />
1.447 bisitz 793: <div>';
1.416 raeburn 794: $result.='<input type="hidden" name="problemmode" value="view" />';
795: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
796: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
797: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
798: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 799: $result.='
800: </div>
1.453 bisitz 801: <hr />
1.409 albertel 802: '.&Apache::lonxml::message_location().'
1.406 albertel 803: </div>';
1.159 albertel 804: return $result;
1.48 albertel 805: }
806:
1.65 albertel 807: sub initialize_storage {
1.357 albertel 808: my ($given_symb) = @_;
1.353 albertel 809: undef(%Apache::lonhomework::results);
810: undef(%Apache::lonhomework::history);
1.357 albertel 811: my ($symb,$courseid,$domain,$name) =
1.367 albertel 812: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 813:
814: # anonymous users (CODEd exams) have no data
815: if ($name eq 'anonymous'
816: && !defined($domain)) {
817: return;
818: }
819:
1.333 albertel 820: if ($env{'request.state'} eq 'construct'
821: || $symb eq ''
822: || $Apache::lonhomework::type eq 'practice') {
823:
824: my $namespace = $symb || $env{'request.uri'};
825: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 826: ($env{'form.resetdata'} eq &mt('New Problem Variation')
827: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 828: $env{'form.newrandomization'} eq &mt('New Randomization')) {
829: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
830: &Apache::lonxml::debug("Attempt reset");
831: }
1.159 albertel 832: %Apache::lonhomework::history=
1.333 albertel 833: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 834: my ($temp)=keys %Apache::lonhomework::history ;
835: &Apache::lonxml::debug("Return message of $temp");
836: } else {
837: %Apache::lonhomework::history=
838: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
839: }
1.353 albertel 840:
1.159 albertel 841: #ignore error conditions
1.67 albertel 842: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 843: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 844: }
845:
1.435 jms 846: =pod
847:
848: =item finalize_storage()
849:
850: Stores away the result has to a student's environment
851: checks form.grade_ for specific values, other wises stores
852: to the running users environment
853: Will increment totals for attempts, students, and corrects
854: if running user has student role.
855:
856: =cut
857:
858:
1.65 albertel 859: sub finalize_storage {
1.357 albertel 860: my ($given_symb) = @_;
1.159 albertel 861: my $result;
1.289 albertel 862: if (%Apache::lonhomework::results) {
1.323 albertel 863: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
864: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 865: my ($symb,$courseid,$domain,$name) =
1.367 albertel 866: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 867: if ($env{'request.state'} eq 'construct'
868: || $symb eq ''
869: || $Apache::lonhomework::type eq 'practice') {
870: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 871: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 872: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 873: $namespace,'',$domain,$name);
1.159 albertel 874: &Apache::lonxml::debug('Construct Store return message:'.$result);
875: } else {
876: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
877: $symb,$courseid,$domain,$name);
878: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 879: &store_aggregates($symb,$courseid);
1.159 albertel 880: }
1.323 albertel 881: } else {
882: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 883: }
1.159 albertel 884: return $result;
1.65 albertel 885: }
886:
1.435 jms 887: =pod
888:
889: item store_aggregates()
890:
891: Sends hash of values to be incremented in nohist_resourcetracker.db
892: for the course. Increments total number of attempts, unique students
893: and corrects for each part for an instance of a problem, as appropriate.
894:
895: =cut
896:
1.285 raeburn 897: sub store_aggregates {
898: my ($symb,$courseid) = @_;
1.479 raeburn 899: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 900: my @parts;
1.288 albertel 901: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
902: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 903: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 904: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 905: push(@parts, $1);
1.285 raeburn 906: }
907: }
1.286 albertel 908: foreach my $part (@parts) {
1.470 raeburn 909: if ($env{'request.role'} =~/^st/) {
910: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
911: eq 'APPROX_ANS' ||
912: $Apache::lonhomework::results{'resource.'.$part.'.award'}
913: eq 'EXACT_ANS') {
914: $aggregate{$symb."\0".$part."\0correct"} = 1;
915: }
916: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
917: $aggregate{$symb."\0".$part."\0users"} = 1;
918: } else {
919: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
920: if ($last_reset) {
921: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
922: $aggregate{$symb."\0".$part."\0users"} = 1;
923: }
924: }
925: }
926: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 927: }
1.470 raeburn 928: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 929: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
930: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
931: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
932: $randtrycounter{$symb."\0".$part} = 1;
933: } else {
934: $anoncounter{$symb."\0".$part} = 1;
935: }
1.470 raeburn 936: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
937: if ($needsrelease) {
938: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
939: if ($curr_required eq '') {
1.471 raeburn 940: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 941: } else {
942: my ($currmajor,$currminor) = split(/\./,$curr_required);
943: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
944: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 945: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 946: }
1.292 raeburn 947: }
948: }
1.285 raeburn 949: }
950: }
1.292 raeburn 951: if (keys (%aggregate) > 0) {
1.289 albertel 952: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 953: $cdomain,$cname);
954: }
1.472 raeburn 955: if (keys(%anoncounter) > 0) {
1.481 raeburn 956: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
957: $cdomain,$cname);
1.472 raeburn 958: }
1.479 raeburn 959: if (keys(%randtrycounter) > 0) {
1.481 raeburn 960: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
961: $cdomain,$cname);
1.479 raeburn 962: }
1.292 raeburn 963: }
1.289 albertel 964:
1.65 albertel 965: sub checkout_msg {
1.211 albertel 966: my %lt=&Apache::lonlocal::texthash(
967: 'resource'=>'The resource needs to be checked out',
968: '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.',
969: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
970: 'checkout'=>'Check out Exam for Viewing',
971: 'checkout?'=>'Check out Exam?');
1.352 albertel 972: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 973: return (<<ENDCHECKOUT);
1.211 albertel 974: <h2>$lt{'resource'}</h2>
975: <p>$lt{'id_expln'}</p>
1.449 bisitz 976: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 977: <form name="checkout" method="post" action="$uri">
1.91 albertel 978: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 979: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 980: </form>
981: ENDCHECKOUT
982: }
983:
1.252 albertel 984: sub firstaccess_msg {
1.253 albertel 985: my ($time,$symb)=@_;
1.414 albertel 986: my $result;
987: my @interval=&Apache::lonnet::EXT("resource.0.interval");
988: if ($interval[1] eq 'map') {
989: my ($map)=&Apache::lonnet::decode_symb($symb);
990: my $foldertitle=&Apache::lonnet::gettitle($map);
991:
992: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 993: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
994: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
995: ,$foldertitle,$time)."</h2>";
1.414 albertel 996: } elsif ($interval[1] eq 'course') {
997: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 998: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
999: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1000: ,$course,$time)."</h2>";
1.414 albertel 1001: } else {
1002: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 1003: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
1004: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1005: ,$title,$time)."</h2>";
1.414 albertel 1006: }
1.352 albertel 1007: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1008: my $buttontext = &mt('Show Resource');
1009: my $timertext = &mt('Start Timer?');
1.414 albertel 1010: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1011: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1012: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 1013: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1014: </form>
1015: ENDCHECKOUT
1.414 albertel 1016: return $result;
1.252 albertel 1017: }
1018:
1.204 albertel 1019: sub init_problem_globals {
1020: my ($type)=@_;
1021: #initialize globals
1.308 foxr 1022: # For problems, we start out in part 0 (outside a <part> tag).
1023: # and part 0 is used to describe the main body of the <problem>
1024: #
1.204 albertel 1025: if ($type eq 'problem') {
1026: $Apache::inputtags::part='0';
1027: @Apache::inputtags::partlist=('0');
1.405 albertel 1028: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1029: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1030:
1.266 albertel 1031: } elsif ($type eq 'library') {
1.204 albertel 1032: $Apache::inputtags::part='';
1033: @Apache::inputtags::partlist=();
1.405 albertel 1034: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1035: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1036:
1.304 albertel 1037: } elsif ($type eq 'Task') {
1038: $Apache::inputtags::part='0';
1039: @Apache::inputtags::partlist=('0');
1.405 albertel 1040: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1041: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1042: }
1.477 www 1043: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1044: @Apache::inputtags::responselist = ();
1045: @Apache::inputtags::importlist = ();
1046: @Apache::inputtags::previous=();
1047: @Apache::inputtags::previous_version=();
1048: $Apache::structuretags::printanswer='No';
1049: @Apache::structuretags::whileconds=();
1050: @Apache::structuretags::whilebody=();
1051: @Apache::structuretags::whileline=();
1052: $Apache::lonhomework::scantronmode=0;
1053: undef($Apache::lonhomework::name);
1.358 albertel 1054: undef($Apache::lonhomework::default_type);
1055: undef($Apache::lonhomework::type);
1.204 albertel 1056: }
1057:
1058: sub reset_problem_globals {
1059: my ($type)=@_;
1060: undef(%Apache::lonhomework::history);
1061: undef(%Apache::lonhomework::results);
1062: undef($Apache::inputtags::part);
1.208 albertel 1063: #don't undef this, lonhomework.pm takes care of this, we use this to
1064: #detect if we try to do 2 problems in one file
1065: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1066: undef($Apache::lonhomework::name);
1.358 albertel 1067: undef($Apache::lonhomework::default_type);
1068: undef($Apache::lonhomework::type);
1069: undef($Apache::lonhomework::scantronmode);
1070: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1071: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1072: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1073: }
1074:
1.241 albertel 1075: sub set_problem_state {
1.240 albertel 1076: my ($part)=@_;
1.284 albertel 1077: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1078: $Apache::lonhomework::history{"resource.$part.solved"}=
1079: 'correct_by_student';
1080: }
1081: }
1082:
1.241 albertel 1083: sub get_problem_status {
1084: my ($part)=@_;
1.267 albertel 1085: my $problem_status;
1.284 albertel 1086: if ($env{'request.state'} eq 'construct' &&
1087: defined($env{'form.problemstatus'})) {
1088: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1089: } else {
1090: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1091: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1092: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1093: }
1094: return $problem_status;
1095: }
1096:
1.9 albertel 1097: sub start_problem {
1.326 albertel 1098: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1099:
1.311 foxr 1100: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1101: if (!$Apache::lonxml::metamode) {
1102: &Apache::lonxml::startredirection();
1103: }
1.311 foxr 1104:
1.308 foxr 1105: # Problems don't nest and we don't allow more than one <problem> in
1106: # a .problem file.
1107: #
1.184 albertel 1108: if ( $Apache::inputtags::part ne '' ||
1109: $Apache::lonhomework::parsing_a_problem) {
1110: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1111: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1112: return '';
1113: }
1.184 albertel 1114:
1115: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1116: &init_problem_globals('problem');
1.166 albertel 1117:
1.284 albertel 1118: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1119: $Apache::lonhomework::scantronmode=1;
1120: }
1.161 albertel 1121:
1.159 albertel 1122: if ($target ne 'analyze') {
1.415 raeburn 1123: my $type = &Apache::lonnet::EXT('resource.0.type');
1124: $Apache::lonhomework::type=$type;
1.284 albertel 1125: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1126: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1127: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1128: }
1.332 albertel 1129: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1130: }
1.164 albertel 1131: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1132: my $uri=$env{'request.uri'};
1.159 albertel 1133: if ($uri=~/\.(\w+)$/) {
1134: $Apache::lonhomework::type=$1;
1135: &Apache::lonxml::debug("Using type of $1");
1136: } else {
1137: $Apache::lonhomework::type='problem';
1138: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1139: }
1.87 albertel 1140: }
1.301 albertel 1141: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1142:
1.363 albertel 1143: &initialize_storage();
1.389 albertel 1144: if ($target ne 'analyze'
1145: && $env{'request.state'} eq 'construct') {
1146: &set_problem_state('0');
1147: }
1148:
1.366 albertel 1149: if ($target eq 'web') {
1150: &Apache::lonxml::debug(" grading history ");
1151: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1152: }
1.363 albertel 1153:
1.159 albertel 1154: #added vars to the scripting enviroment
1.213 albertel 1155: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1156: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1157: &Apache::run::run($expression,$safeeval);
1.159 albertel 1158: my $status;
1159: my $accessmsg;
1160:
1.343 albertel 1161: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1162: my ($result,$form_tag_start);
1.354 albertel 1163: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1164: || $target eq 'edit') {
1.350 albertel 1165: ($result,$form_tag_start) =
1166: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1167: $name);
1168: }
1169:
1.284 albertel 1170: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1171:
1.479 raeburn 1172: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1173: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1174: $target eq 'tex') {
1.284 albertel 1175: if ($env{'form.markaccess'}) {
1.414 albertel 1176: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1177: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1178: }
1.479 raeburn 1179:
1180: ($status,$accessmsg,my $slot_name,my $slot) =
1181: &Apache::lonhomework::check_slot_access('0','problem');
1182: push (@Apache::inputtags::status,$status);
1183:
1.159 albertel 1184: #handle rand seed in construction space
1.479 raeburn 1185: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1186: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1187:
1.333 albertel 1188: if ($env{'request.state'} ne "construct" &&
1189: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1190: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1191: $rndseed.'" />'.
1192: '<input type="submit" name="resetdata"
1193: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1194: if (exists($env{'form.username'})) {
1195: $form_tag_start.=
1.164 albertel 1196: '<input type="hidden" name="username"
1.284 albertel 1197: value="'.$env{'form.username'}.'" />';
1.334 albertel 1198: }
1.462 raeburn 1199: if ($env{'request.role.adv'}) {
1200: $form_tag_start.= ' <label class="LC_nobreak">'
1201: .'<input type="checkbox" name="showallfoils"';
1202: if (defined($env{'form.showallfoils'})) {
1203: $form_tag_start.=' checked="checked"';
1204: }
1205: $form_tag_start.= ' /> '
1206: .&mt('Show All Foils')
1207: .'</label>';
1208: }
1.417 www 1209: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1210: $form_tag_start.=&practice_problem_header();
1.417 www 1211: }
1.462 raeburn 1212: $form_tag_start.='<hr />';
1.479 raeburn 1213: } elsif (($env{'request.state'} ne "construct") &&
1214: ($Apache::lonhomework::type eq 'randomizetry') &&
1215: ($status eq 'CAN_ANSWER')) {
1216: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1217: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1218: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1219: }
1.324 albertel 1220:
1.159 albertel 1221: my $expression='$external::datestatus="'.$status.'";';
1222: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1223: &Apache::run::run($expression,$safeeval);
1224: &Apache::lonxml::debug("Got $status");
1.324 albertel 1225:
1.159 albertel 1226: if (( $status eq 'CLOSED' ) ||
1227: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1228: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1229: ( $status eq 'BANNED') ||
1.216 albertel 1230: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1231: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1232: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1233: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1234: $style);
1.159 albertel 1235: if ( $target eq "web" ) {
1.343 albertel 1236: my $msg;
1.159 albertel 1237: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1238: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1239: } elsif ($status eq 'NOT_IN_A_SLOT') {
1240: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1241: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1242: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1243: }
1.216 albertel 1244: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1245: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1246: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1247: $msg.=&checkout_msg();
1.252 albertel 1248: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1249: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1250: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1251: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1252: }
1253: $result.=$msg.'<br />';
1254: } elsif ($target eq 'tex') {
1.332 albertel 1255: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1256: : '\begin{minipage}{\textwidth}';
1.443 foxr 1257: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1258: $startminipage.'\vskip 0 mm';
1.159 albertel 1259: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1260: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1261: } else {
1.211 albertel 1262: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1263: }
1264: }
1.324 albertel 1265: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1266: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1267: $style);
1.324 albertel 1268: if ($target eq 'web') {
1.375 albertel 1269: $result .=
1270: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1271: } elsif ($target eq 'grade') {
1272: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1273: 'problem');
1274: }
1.159 albertel 1275: } elsif ($target eq 'web') {
1.360 albertel 1276: if ($status eq 'CAN_ANSWER'
1277: && $slot_name ne ''
1278: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1279: # unproctored slot access, self checkin
1280: &Apache::bridgetask::check_in('problem',undef,undef,
1281: $slot_name);
1282: }
1.368 albertel 1283: $result.="\n $form_tag_start \t".
1.227 albertel 1284: '<input type="hidden" name="submitted" value="yes" />';
1285: # create a page header and exit
1.284 albertel 1286: if ($env{'request.state'} eq "construct") {
1287: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1288: if ($Apache::lonhomework::type eq 'practice') {
1289: $result.= '<input type="submit" name="resetdata" '.
1290: 'value="'.&mt('New Problem Variation').'" />'.
1291: &practice_problem_header().'<hr />';
1292: }
1.227 albertel 1293: }
1294: # if we are viewing someone else preserve that info
1.284 albertel 1295: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1296: foreach my $field ('symb','courseid','domain','username') {
1297: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1298: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1299: }
1.479 raeburn 1300: foreach my $field ('trial','questiontype') {
1301: if ($env{"form.grade_$field"} ne '') {
1302: $result .= '<input type="hidden" name="grade_'.$field.
1303: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1304: }
1305: }
1.159 albertel 1306: }
1.490 raeburn 1307: if ($env{'form.grade_imsexport'}) {
1308: $result = '';
1309: }
1.159 albertel 1310: } elsif ($target eq 'tex') {
1.319 foxr 1311: $result .= 'INSERTTEXFRONTMATTERHERE';
1.497.2.6! foxr 1312: $result .= &select_metadata_hyphenation();
! 1313:
1.319 foxr 1314:
1.99 sakharuk 1315: }
1.159 albertel 1316: } elsif ($target eq 'edit') {
1.343 albertel 1317: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1318: $Apache::lonxml::warnings_error_header=
1319: &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 1320: my $temp=&Apache::edit::insertlist($target,$token);
1321: $result.=$temp;
1322: } elsif ($target eq 'modified') {
1323: $result=$token->[4];
1324: } else {
1325: # page_start returned a starting result, delete it if we don't need it
1326: $result = '';
1.99 sakharuk 1327: }
1.159 albertel 1328: return $result;
1.9 albertel 1329: }
1330:
1331: sub end_problem {
1.159 albertel 1332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1333: my $result;
1.310 foxr 1334:
1.321 albertel 1335: if (!$Apache::lonxml::metamode) {
1336: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1337: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1338: }
1.319 foxr 1339:
1340: if ($target eq 'tex') {
1.321 albertel 1341: # Figure out the front matter and replace the
1342: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1343: # this in end_problem because whether or not we display due
1344: # dates depends on whether due dates have already been
1345: # displayed in the problem parts.
1346:
1.319 foxr 1347: my $frontmatter = '';
1348: my $startminipage = '';
1349: if (not $env{'form.problem_split'}=~/yes/) {
1350: $startminipage = '\begin{minipage}{\textwidth}';
1351: }
1352: my $id = $Apache::inputtags::part;
1353: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1354: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1355: my @packages = split /,/,$packages;
1356: my $allow_print_points = 0;
1357: foreach my $partial_key (@packages) {
1358: if ($partial_key=~m/^part_0$/) {
1359: $allow_print_points=1;
1360: }
1361: }
1362: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1363: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1364: if (lc($env{'course.'.$env{'request.course.id'}.
1365: '.disableexampointprint'}) eq 'yes') {
1366: $allow_print_points=0;
1367: }
1368: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1369: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.497.2.5 foxr 1370: &clear_required_languages();
1.319 foxr 1371: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1372: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1373:
1374: # Figure out what the due date is and if we need to print
1375: # it in the problem header. We have been logging the
1376: # last due date written to file.
1377:
1378: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1379: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1380: my $duedate_text = &mt('Due date: [_1]'
1381: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1382: my $temp_file;
1383: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1384:
1385: # Figure out what the last printed due date is or set it
1386: # to the epoch if no duedates have been printed.
1387:
1388: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1389: if (-e $filename) {
1390: $temp_file = Apache::File->new($filename);
1391: my @due_file = <$temp_file>;
1392: $due_file_content = $due_file[$#due_file];
1393: chomp $due_file_content;
1394: }
1395:
1396: # We display the due date iff it is not the same as the last
1397: # duedate in problem header ($due_file_content), and
1398: # none of our parts displayed a duedate.
1399: #
1400: my $parts_with_displayduedate;
1401: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1402: $parts_with_displayduedate =
1403: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1404: } else {
1405: $parts_with_displayduedate = 0;
1406: }
1407: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1408: $temp_file = Apache::File->new('>'.$filename);
1409: print $temp_file "$duetime\n";
1410: if (not $env{'request.symb'} =~ m/\.page_/) {
1411: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1412: $frontmatter .= $begin_doc.
1.448 bisitz 1413: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1414: } else {
1415: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1416: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1417: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1418: }
1.319 foxr 1419: }
1420: } else {
1.448 bisitz 1421: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1422: }
1423: } else {
1424: if (not $env{'request.symb'} =~ m/\.page_/) {
1425: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1426: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1427: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1428: }
1.319 foxr 1429: } else {
1.381 albertel 1430: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1431: }
1432: }
1433: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1434: }
1435:
1.159 albertel 1436: my $status=$Apache::inputtags::status['-1'];
1437: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1438: $target eq 'tex') {
1.249 albertel 1439: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1440: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1441: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1442: &Apache::inputtags::grade;
1.324 albertel 1443: } elsif ($status eq 'NEEDS_CHECKIN') {
1444: # no need to grade, and don't want to hide data
1.249 albertel 1445: } else {
1446: # move any submission data to .hidden
1447: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1448: }
1.159 albertel 1449: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1450: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1451: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1452: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1453: # if part is zero, no <part>s existed, so we need show the current
1454: # grading status
1455: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1456: $result.= $gradestatus;
1457: }
1458: if (
1.284 albertel 1459: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1460: ($target eq 'answer') || ($target eq 'tex')
1461: ) {
1.490 raeburn 1462: if (($target ne 'tex') &&
1463: ($env{'form.answer_output_mode'} ne 'tex') &&
1464: (!$env{'form.grade_imsexport'})) {
1.254 www 1465: $result.="</form>";
1.159 albertel 1466: }
1467: if ($target eq 'web') {
1.346 albertel 1468: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1469: } elsif ($target eq 'tex') {
1.178 sakharuk 1470: my $endminipage = '';
1.284 albertel 1471: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1472: $endminipage = '\end{minipage}';
1473: }
1.284 albertel 1474: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1475: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1476: } else {
1.262 sakharuk 1477: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1478: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1479: $result .= $endminipage.'\end{document} ';
1480: } else {
1.382 albertel 1481: $result .= $endminipage;
1.262 sakharuk 1482: }
1.159 albertel 1483: }
1484: }
1485: }
1.476 www 1486: if ($target eq 'web') {
1487: $result.=&Apache::functionplotresponse::init_script();
1488: }
1.159 albertel 1489: if ($target eq 'grade') {
1490: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1491: &finalize_storage();
1492: }
1.284 albertel 1493: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1494: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1495: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1496: # normally we get it from above, but in CSTR
1.172 albertel 1497: # we always show answer mode too.
1.159 albertel 1498: }
1499: } elsif ($target eq 'meta') {
1500: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1501: @Apache::inputtags::response=();
1.159 albertel 1502: $result=&Apache::response::mandatory_part_meta;
1503: }
1.215 albertel 1504: $result.=&Apache::response::meta_part_order();
1.258 albertel 1505: $result.=&Apache::response::meta_response_order();
1.159 albertel 1506: } elsif ($target eq 'edit') {
1507: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1508: $result .= &problem_edit_footer();
1.320 albertel 1509: } elsif ($target eq 'modified') {
1510: $result .= $token->[2];
1.159 albertel 1511: }
1.155 albertel 1512:
1.284 albertel 1513: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1514: &Apache::inputtags::check_for_duplicate_ids();
1515: }
1.204 albertel 1516:
1517: &reset_problem_globals('problem');
1.159 albertel 1518:
1519: return $result;
1.48 albertel 1520: }
1521:
1.108 albertel 1522:
1.48 albertel 1523: sub start_library {
1.159 albertel 1524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1525: my ($result,$form_tag_start);
1.371 albertel 1526: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1527: &init_problem_globals('library');
1528: $Apache::lonhomework::type='problem';
1529: }
1.159 albertel 1530: if ($target eq 'edit') {
1.343 albertel 1531: ($result,$form_tag_start)=
1532: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1533: 'Edit');
1534: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1535: my $temp=&Apache::edit::insertlist($target,$token);
1536: $result.=$temp;
1537: } elsif ($target eq 'modified') {
1538: $result=$token->[4];
1.340 albertel 1539: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1540: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1541: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1542: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1543: ($result,$form_tag_start)=
1544: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1545: $name);
1.479 raeburn 1546: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1547: $result.=" \n $form_tag_start".
1.159 albertel 1548: '<input type="hidden" name="submitted" value="yes" />';
1549: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1550: if ($Apache::lonhomework::type eq 'practice') {
1551: $result.= '<input type="submit" name="resetdata" '.
1552: 'value="'.&mt('New Problem Variation').'" />'.
1553: &practice_problem_header().'<hr />';
1554: }
1.159 albertel 1555: }
1556: return $result;
1.48 albertel 1557: }
1558:
1559: sub end_library {
1.159 albertel 1560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1561: my $result='';
1562: if ($target eq 'edit') {
1563: $result=&problem_edit_footer();
1.371 albertel 1564: } elsif ($target eq 'web'
1565: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1566: && $env{'request.state'} eq "construct") {
1.349 albertel 1567: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1568: }
1.371 albertel 1569: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1570: &reset_problem_globals('library');
1571: }
1.159 albertel 1572: return $result;
1.197 www 1573: }
1574:
1575: sub start_definetag {
1.326 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1577:
1578: my $result;
1579:
1580: my $name = $token->[2]->{'name'};
1.326 albertel 1581: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1582: if ($target eq 'web') {
1583: if ($name=~/^\//) {
1584: $result=
1585: '<br /><table class="LC_sty_end"><tr><th>'.
1586: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1587: } else {
1588: $result=
1589: '<br /><table class="LC_sty_begin"><tr><th>'.
1590: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1591: }
1592: $skip = &HTML::Entities::encode($skip, '<>&"');
1593: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1594: }
1595: return $result;
1596: }
1597:
1598: sub end_definetag {
1599: return '';
1.1 albertel 1600: }
1601:
1602: sub start_block {
1.201 albertel 1603: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1604:
1605: my $result;
1.1 albertel 1606:
1.339 albertel 1607: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1608: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1609: my $code = $token->[2]->{'condition'};
1.385 albertel 1610: if (defined($code) && $code ne '') {
1.137 albertel 1611: if (!$Apache::lonxml::default_homework_loaded) {
1612: &Apache::lonxml::default_homework_load($safeeval);
1613: }
1.131 albertel 1614: $result = &Apache::run::run($code,$safeeval);
1615: &Apache::lonxml::debug("block :$code: returned :$result:");
1616: } else {
1617: $result='1';
1618: }
1619: if ( ! $result ) {
1.201 albertel 1620: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1621: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1622: }
1623: $result='';
1624: } elsif ($target eq 'edit') {
1625: $result .=&Apache::edit::tag_start($target,$token);
1626: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1627: $token,40);
1628: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1629: } elsif ($target eq 'modified') {
1630: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1631: $safeeval,'condition');
1632: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1633: }
1.131 albertel 1634: return $result;
1.1 albertel 1635: }
1636:
1637: sub end_block {
1.167 www 1638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1639: my $result;
1640: if ($target eq "edit") {
1641: $result.= &Apache::edit::tag_end($target,$token,'');
1642: }
1643: return $result;
1644: }
1.497.2.1 foxr 1645: #
1646: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1647: # ...
1648: # </languageblock>
1649: #
1650: # This declares the intent to provide content that can be rendered in the
1651: # set of languages in the include specificatino but not in the exclude
1652: # specification. If a currently preferred language is in the include list
1653: # the content in the <languageblock>...</languageblock> is rendered
1654: # If the currently preferred language is in the exclude list,
1655: # the content in the <languageblock>..></languageblock is not rendered.
1656: #
1657: # Pathalogical case handling:
1658: # - Include specified, without the preferred language but exclude specified
1659: # also without the preferred langauge results in rendering the block.
1660: # - Exclude specified without include and excluden not containing a
1661: # preferred language renders the block.
1662: # - Include and exclude both specifying the preferred language does not
1663: # render the block.
1664: # - If neither include/exclude is specified, the block gets rendered.
1665: #
1666: # This tag has no effect when target is in {edit, modified}
1667: #
1.167 www 1668: sub start_languageblock {
1.201 albertel 1669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1670:
1.497.2.1 foxr 1671: my $result = '';
1.167 www 1672:
1.339 albertel 1673: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1674: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1675: my $include = $token->[2]->{'include'};
1676: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1677: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.497.2.1 foxr 1678:
1679: # This should not even happen, since we should at least have the server language
1680:
1681: if (!$preferred_languages[0]) {
1682: $preferred_languages[0]='en';
1683: }
1684:
1685: # Now loop over all languages in order of preference
1686:
1.497.2.4 foxr 1687: my $render;
1.398 www 1688: foreach my $preferred_language (@preferred_languages) {
1.497.2.1 foxr 1689:
1690: # If neither include/nor exlude is present the block is going
1691: # to get rendered.
1692:
1.399 www 1693: my $found=0;
1.497.2.4 foxr 1694: $render=1;
1695:
1.497.2.1 foxr 1696: # If include is specified, don't render the block
1697: # unless the preferred language is included in the set.
1698:
1.398 www 1699: if ($include) {
1.497.2.1 foxr 1700: $render=0;
1.398 www 1701: foreach my $included_language (split(/\,/,$include)) {
1702: if ($included_language eq $preferred_language) {
1.497.2.1 foxr 1703: $render=1;
1.399 www 1704: $found=1;
1.497.2.1 foxr 1705: last; # Only need to find the first.
1.398 www 1706: }
1707: }
1708: }
1.497.2.1 foxr 1709: # Do we have an exclude argument?
1710: # If so, and one of the languages matches a preferred language
1711: # inhibit rendering the block. Note that in the pathalogical case the
1712: # author has specified a preferred language in both the include and exclude
1713: # attribte exclude is preferred.
1714:
1.398 www 1715: if ($exclude) {
1.497.2.1 foxr 1716: $render=1;
1.398 www 1717: foreach my $excluded_language (split(/\,/,$exclude)) {
1718: if ($excluded_language eq $preferred_language) {
1.497.2.1 foxr 1719: $render=0;
1.399 www 1720: $found=1;
1.497.2.1 foxr 1721: last; # Only need to find the first.
1.398 www 1722: }
1723: }
1724: }
1.497.2.1 foxr 1725: if ($found) {
1726: last; # Done on any match of include or exclude.
1727: }
1.398 www 1728: }
1.497.2.1 foxr 1729: # If $render not true skip the entire block until </languageblock>
1730: #
1731:
1732: if ( ! $render ) {
1.201 albertel 1733: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1734: $style);
1735: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1736: }
1.497.2.1 foxr 1737: # If $render is true, we've not skipped the contents of the <languageglock>
1738: # and the normal loncapa processing flow will render it as a matter of course.
1739:
1.167 www 1740: } elsif ($target eq 'edit') {
1741: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1742: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1743: $token,40);
1.211 albertel 1744: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1745: $token,40);
1746: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1747: } elsif ($target eq 'modified') {
1748: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1749: $safeeval,'include',
1750: 'exclude');
1.167 www 1751: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1752: }
1753: return $result;
1754: }
1755:
1756: sub end_languageblock {
1.170 www 1757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1758: my $result;
1.201 albertel 1759: if ($target eq "edit") {
1.170 www 1760: $result.= &Apache::edit::tag_end($target,$token,'');
1761: }
1762: return $result;
1763: }
1.497.2.3 foxr 1764: # languagblock specific tags:
1.397 albertel 1765: {
1.497.2.2 foxr 1766: # For chunks of a resource that has translations, this hash contains
1767: # the translations available indexed by language name.
1768: #
1769:
1770: my %available_texts;
1771:
1772: # <translated> starts a block of a resource that has multiple translations.
1773: # See the <lang> tag as well.
1774: # When </translated> is encountered if there is a translation for the
1775: # currently preferred language, that is rendered inthe web/tex/webgrade
1776: # targets. Otherwise, the default text is rendered.
1777: #
1778: # Note that <lang> is only registered for the duration of the
1779: # <translated>...</translated> block
1780: #
1781: # Pathalogical case handling:
1782: # - If there is no <lang> that specifies a 'default' and there is no
1783: # translation that matches a preferred language, nothing is rendered.
1784: # - Nested <translated>...</translated> might be linguistically supported by
1785: # XML due to the stack nature of tag registration(?) however the rendered
1786: # output will be incorrect because there is only one %available_texts
1787: # has and end_translated clears it.
1788: # - Material outside of a <lang>...</lang> block within the
1789: # <translated>...<translated> block won't render either e.g.:
1790: # <translated>
1791: # The following will be in your preferred langauge:
1792: # <lang which='en'>
1793: # This section in english
1794: # </lang>
1795: # <lang which='sgeiso'>
1796: # Hier es ist auf Deutsch.
1797: # </lang>
1798: # <lang which='sfriso'>
1799: # En Francais
1800: # </lang>
1801: # </translated>
1802: #
1803: # The introductory text prior to the first <lang> tag is not rendered.
1804: #
1.397 albertel 1805: sub start_translated {
1806: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1807: &Apache::lonxml::register('Apache::structuretags',('lang'));
1808: undef(%available_texts);
1809: }
1810:
1811: sub end_translated {
1812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1813: my $result;
1814: #show the translation on viewable targets
1815: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1816: # or non-viewable targets, if it's embedded in something that
1817: # wants the output
1818: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1819: && &Apache::lonxml::in_redirection() ) ) {
1820: my @possibilities = keys(%available_texts);
1821: my $which =
1822: &Apache::loncommon::languages(\@possibilities) || 'default';
1.497.2.4 foxr 1823: if ($target eq 'tex') {
1824: $result = &select_hyphenation($which);
1825: }
1826: $result .= $available_texts{$which};
1.497.2.6! foxr 1827: $result .= &select_metadata_hyphenation(); # Restore original language.
1.397 albertel 1828: }
1829: undef(%available_texts);
1830: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1831: return $result;
1832: }
1833:
1.497.2.3 foxr 1834: # <lang [which='language-name'] [other='lang1,lang2...']>
1835: # Specifies that the block contained within it is a translation
1836: # for a specific language specified by the 'which' attribute. The
1837: # 'other' attribute can be used by itself or in conjunction with
1838: # which to specify this tag _may_ be used as a translation for some
1839: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1840: # specifying that the block provides a translation for US (primary)
1841: # Canadian, Australian and UK Englush.
1842: #
1843: # Comment: this seems a bit silly why not just support a list of languages
1844: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1845: #
1846: # Effect:
1847: # The material within the <lang>..</lang> block is stored in the
1848: # specified set of $available_texts hash entries, the appropriate one
1849: # is selected at </translated> time.
1850: #
1851: # Pathalogical case handling:
1852: # If a language occurs multiple times within a <translated> block,
1853: # only the last one is rendered e.g.:
1854: #
1855: # <translated>
1856: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1857: # Red green color blindness is quite common affecting about 7.8% of
1858: # the male population, but onloy about .65% of the female population.
1859: # </lang>
1860: # Red green colour blindness is quite common affecting about 7.8% of
1861: # the male population, but onloy about .65% of the female population.
1862: # <lang which='seniso', other='senisoCA,senisoAU'>
1863: # </translated>
1864: #
1865: # renders the correct spelling of color (colour) for people who have specified
1866: # a preferred language that is one of the British Commonwealth languages
1867: # even though those are also listed as valid selections for the US english
1868: # <lang> block.
1869: #
1.397 albertel 1870: sub start_lang {
1871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1872: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1873: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1874: &Apache::lonxml::startredirection();
1875: }
1876: return '';
1877: }
1878:
1879: sub end_lang {
1880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1881: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1882: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1883: my $result = &Apache::lonxml::endredirection();
1884: my $which = &Apache::lonxml::get_param('which',$parstack,
1885: $safeeval);
1.431 raeburn 1886: if ($which=~/\w/) {
1887: $available_texts{$which} = $result;
1888: }
1889: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1890: $safeeval);
1891: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1892: if ($language=~/\w/) {
1893: $available_texts{$language} = $result;
1894: }
1.427 bisitz 1895: }
1896:
1.397 albertel 1897: }
1898: return '';
1899: }
1.497.2.3 foxr 1900: } # end langauge block specific tags.
1901:
1.397 albertel 1902:
1.170 www 1903: sub start_instructorcomment {
1.201 albertel 1904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1905:
1906: my $result;
1907:
1.339 albertel 1908: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1909: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1910: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1911: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1912: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1913: $parser,$style);
1.170 www 1914: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1915: }
1916: $result='';
1917: } elsif ($target eq 'edit') {
1918: $result .=&Apache::edit::tag_start($target,$token);
1919: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1920: }
1921: return $result;
1922: }
1923:
1924: sub end_instructorcomment {
1.159 albertel 1925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1926: my $result;
1927: if ($target eq "edit") {
1928: $result.= &Apache::edit::tag_end($target,$token,'');
1929: }
1930: return $result;
1.4 tsai 1931: }
1932:
1933: sub start_while {
1.326 albertel 1934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1935:
1.160 albertel 1936: my $result;
1.339 albertel 1937: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1938: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1939: my $code = $token->[2]->{'condition'};
1.4 tsai 1940:
1.160 albertel 1941: push( @Apache::structuretags::whileconds, $code);
1942: if (!$Apache::lonxml::default_homework_loaded) {
1943: &Apache::lonxml::default_homework_load($safeeval);
1944: }
1945: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1946: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1947: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1948: push( @Apache::structuretags::whileline, $token->[5]);
1949: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1950: if ( $result ) {
1951: &Apache::lonxml::newparser($parser,\$bodytext);
1952: }
1953: } elsif ($target eq 'edit') {
1954: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1955: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1956: $token,40);
1957: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1958: } elsif ($target eq 'modified') {
1959: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1960: $safeeval,'condition');
1961: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1962: }
1.160 albertel 1963: return $result;
1.4 tsai 1964: }
1965:
1966: sub end_while {
1.159 albertel 1967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1968: my $result;
1969:
1.339 albertel 1970: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1971: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1972: my $code = pop(@Apache::structuretags::whileconds);
1973: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1974: my $line = pop(@Apache::structuretags::whileline);
1975: my $return = &Apache::run::run($code,$safeeval);
1976: my $starttime=time;
1977: my $error=0;
1978: while ($return) {
1979: if (time-$starttime >
1980: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1981: $return = 0; $error=1; next;
1.161 albertel 1982: }
1983: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1984: if ($target eq 'grade' || $target eq 'answer' ||
1985: $target eq 'analyze') {
1986: # grade/answer/analyze should produce no output but if we
1987: # are redirecting, the redirecter should know what to do
1988: # with the output
1989: if (!$Apache::lonxml::redirection) { undef($result); }
1990: }
1.161 albertel 1991: $return = &Apache::run::run($code,$safeeval);
1992: }
1993: if ($error) {
1.430 bisitz 1994: &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 1995: }
1996: } elsif ($target eq "edit") {
1997: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1998: }
1.160 albertel 1999: return $result;
1.1 albertel 2000: }
1.6 tsai 2001:
1.160 albertel 2002: # <randomlist show="1">
1.6 tsai 2003: # <tag1>..</tag1>
2004: # <tag2>..</tag2>
2005: # <tag3>..</tag3>
1.160 albertel 2006: # ...
1.6 tsai 2007: # </randomlist>
2008: sub start_randomlist {
1.326 albertel 2009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2010: my $result;
1.339 albertel 2011: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2012: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2013: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2014: my $b_parser= HTML::LCParser->new(\$body);
2015: $b_parser->xml_mode(1);
2016: $b_parser->marked_sections(1);
1.159 albertel 2017: my $b_tok;
2018: my @randomlist;
2019: my $list_item;
2020: while($b_tok = $b_parser->get_token() ) {
2021: if($b_tok->[0] eq 'S') { # start tag
2022: # get content of the tag until matching end tag
2023: # get all text upto the matching tag
2024: # and push the content into @randomlist
2025: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2026: $b_parser);
2027: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2028: push(@randomlist,$list_item);
2029: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2030: # $list_item</b>";
2031: }
2032: if($b_tok->[0] eq 'T') { # text
2033: # what to do with text in between tags?
2034: # print "<b>TEXT $b_tok->[1]</b><br />";
2035: }
2036: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2037: # print "<b>END-TAG $b_tok->[1]</b><br />";
2038: # }
2039: }
1.303 albertel 2040: if (@randomlist) {
2041: my @idx_arr = (0 .. $#randomlist);
2042: &Apache::structuretags::shuffle(\@idx_arr);
2043: my $bodytext = '';
2044: my $show=$#randomlist;
2045: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2046: $showarg--;
2047: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2048: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2049: my @currlist;
2050: my $part = $Apache::inputtags::part;
2051: if ($part ne '') {
2052: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2053: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2054: if (!(grep(/^\Q$part\E$/,@currlist))) {
2055: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2056: }
2057: } else {
2058: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2059: }
2060: }
2061: }
1.303 albertel 2062: for(0 .. $show) {
2063: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2064: }
2065: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2066: }
2067: } elsif ($target eq 'edit' ) {
2068: $result .=&Apache::edit::tag_start($target,$token);
2069: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2070: $token,5);
2071: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2072: } elsif ($target eq 'modified' ) {
2073: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2074: $safeeval,'show');
2075: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2076: }
2077: return $result;
1.7 tsai 2078: }
2079:
2080: sub shuffle {
2081: my $a=shift;
2082: my $i;
1.303 albertel 2083: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2084: &Apache::response::pushrandomnumber();
1.159 albertel 2085: for($i=@$a;--$i;) {
2086: my $j=int(&Math::Random::random_uniform() * ($i+1));
2087: next if $i == $j;
2088: @$a[$i,$j] = @$a[$j,$i];
2089: }
1.251 albertel 2090: &Apache::response::poprandomnumber();
1.7 tsai 2091: }
1.6 tsai 2092: }
2093:
2094: sub end_randomlist {
1.159 albertel 2095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2096: my $result;
2097: if ($target eq 'edit' ) {
2098: $result=&Apache::edit::tag_end($target,$token,
2099: 'End Randomly Parsed Block');
2100: }
2101: return $result;
1.6 tsai 2102: }
2103:
1.283 albertel 2104: sub ordered_show_check {
2105: my $last_part=$Apache::inputtags::partlist[-2];
2106: my $in_order=
2107: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2108: my $in_order_show=1;
2109: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2110: $in_order_show=&Apache::response::check_status($last_part);
2111: }
2112: return $in_order_show;
2113: }
2114:
1.469 www 2115:
2116: sub start_startpartmarker {
2117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2118: my $result='';
2119: if ($target eq 'edit') {
2120: $result=&Apache::edit::tag_start($target,$token);
2121: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2122: $result.=&Apache::edit::end_table();
2123:
2124: }
2125: return $result;
2126: }
2127:
2128: sub end_startpartmarker {
2129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2130: my @result;
2131: if ($target eq 'edit') { $result[1]='no'; }
2132: return @result;
2133: }
2134:
2135: sub start_endpartmarker {
2136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2137: my $result='';
2138: if ($target eq 'edit') {
2139: $result=&Apache::edit::tag_start($target,$token);
2140: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2141: $result.=&Apache::edit::end_table();
2142:
2143: }
2144: return $result;
2145: }
2146:
2147: sub end_endpartmarker {
2148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2149: my @result;
2150: if ($target eq 'edit') { $result[1]='no'; }
2151: return @result;
2152: }
2153:
2154:
2155:
2156:
2157:
1.11 albertel 2158: sub start_part {
1.326 albertel 2159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2160: if (!$Apache::lonxml::metamode) {
2161: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2162: # duedates.
2163: }
1.159 albertel 2164: my $result='';
1.386 albertel 2165: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2166: $Apache::inputtags::part=$id;
1.177 albertel 2167: push(@Apache::inputtags::partlist,$id);
2168: @Apache::inputtags::response=();
1.159 albertel 2169: @Apache::inputtags::previous=();
2170: @Apache::inputtags::previous_version=();
1.405 albertel 2171: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2172: &Apache::response::reset_params();
2173:
1.159 albertel 2174: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2175: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2176: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2177: my $in_order_show=&ordered_show_check();
1.214 albertel 2178: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2179: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2180: &Apache::run::run($expression,$safeeval);
1.159 albertel 2181:
2182: if ($target eq 'meta') {
1.224 www 2183: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2184: return &Apache::response::mandatory_part_meta.
2185: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2186: } elsif ($target eq 'web' || $target eq 'grade' ||
2187: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2188: if ($hidden || !$in_order_show) {
1.326 albertel 2189: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2190: } else {
2191: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2192: push (@Apache::inputtags::status,$status);
2193: my $expression='$external::datestatus="'.$status.'";';
2194: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2195: &Apache::run::run($expression,$safeeval);
1.284 albertel 2196: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2197: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2198: }
1.216 albertel 2199: if (( $status eq 'CLOSED' ) ||
2200: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2201: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2202: ( $status eq 'BANNED') ||
2203: ( $status eq 'UNAVAILABLE') ||
2204: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2205: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2206: $style);
1.159 albertel 2207: if ( $target eq "web" ) {
1.211 albertel 2208: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2209: } elsif ( $target eq 'tex' ) {
1.284 albertel 2210: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2211: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2212: } else {
1.211 albertel 2213: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2214: }
1.159 albertel 2215: }
2216: } else {
2217: if ($target eq 'tex') {
1.284 albertel 2218: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2219: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2220: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2221: } else {
2222: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2223: }
1.195 sakharuk 2224: }
1.159 albertel 2225: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2226: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2227: my @allkeys = split /,/,$allkeys;
2228: my $allow_print_points = 0;
2229: foreach my $partial_key (@allkeys) {
1.230 albertel 2230: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2231: if ($1 ne '0') {$allow_print_points=1;}
2232: }
2233: }
1.275 albertel 2234: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2235: if (defined($maxtries) && $maxtries < 0) {
2236: $allow_print_points=0;
2237: }
1.302 albertel 2238: if (lc($env{'course.'.$env{'request.course.id'}.
2239: '.disableexampointprint'}) eq 'yes') {
2240: $allow_print_points=0;
2241: }
1.463 foxr 2242: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2243: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2244:
2245: }
1.233 www 2246: } elsif ($target eq 'web') {
1.479 raeburn 2247: if ($status eq 'CAN_ANSWER') {
2248: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2249: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2250: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2251: my $num = scalar(@Apache::inputtags::partlist)-1;
2252: if ($probrandomize eq 'randomizetry') {
2253: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2254: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2255: } else {
2256: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2257: if ($probrandtries ne $reqtries) {
2258: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2259: }
2260: }
2261: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2262: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2263: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2264: }
2265: }
1.475 raeburn 2266: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2267: }
2268: }
2269: }
2270: } elsif ($target eq 'edit') {
2271: $result.=&Apache::edit::tag_start($target,$token);
2272: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2273: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2274: ' '.
2275: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2276: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2277: } elsif ($target eq 'modified') {
2278: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2279: $safeeval,'id','display');
1.159 albertel 2280: if ($constructtag) {
1.225 albertel 2281: #limiting ids to only letters numbers, and space
1.224 www 2282: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2283: $result = &Apache::edit::rebuild_tag($token);
2284: }
2285: }
2286: return $result;
1.11 albertel 2287: }
2288:
2289: sub end_part {
1.159 albertel 2290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2291: &Apache::lonxml::debug("in end_part $target ");
2292: my $status=$Apache::inputtags::status['-1'];
2293: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2294: my $in_order_show=&ordered_show_check();
1.321 albertel 2295: my $result;
2296: if (!$Apache::lonxml::metamode) {
2297: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2298: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2299: }
1.312 albertel 2300: if ($target eq 'grade') {
1.249 albertel 2301: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2302: !$hidden && $in_order_show) {
1.311 foxr 2303: $result.=&Apache::inputtags::grade;
1.249 albertel 2304: } else {
2305: # move any submission data to .hidden
2306: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2307: }
1.283 albertel 2308: } elsif (($target eq 'web' || $target eq 'tex') &&
2309: !$hidden && $in_order_show) {
1.159 albertel 2310: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2311: $target);
1.490 raeburn 2312: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2313: ($env{'form.grade_imsexport'})) {
1.212 albertel 2314: $gradestatus='';
2315: }
1.311 foxr 2316: $result.=$gradestatus;
1.265 sakharuk 2317: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2318: } elsif ($target eq 'edit') {
1.311 foxr 2319: $result.=&Apache::edit::end_table();
1.322 albertel 2320: } elsif ($target eq 'modified') {
2321: $result .= $token->[2];
1.159 albertel 2322: }
2323: pop @Apache::inputtags::status;
2324: $Apache::inputtags::part='';
1.295 albertel 2325: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2326: return $result;
1.11 albertel 2327: }
1.1 albertel 2328:
1.25 albertel 2329: sub start_preduedate {
1.326 albertel 2330: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2331: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2332: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2333: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2334: if (!$Apache::lonhomework::scantronmode &&
2335: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2336: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2337: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2338: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2339: }
1.24 albertel 2340: }
1.159 albertel 2341: return '';
1.24 albertel 2342: }
2343:
1.25 albertel 2344: sub end_preduedate {
1.159 albertel 2345: return '';
1.24 albertel 2346: }
2347:
1.369 foxr 2348: # In all the modes where <postanswerdate> text is
2349: # displayable, all we do is eat up the text between the start/stop
2350: # tags if the conditions are not right to display it.
1.25 albertel 2351: sub start_postanswerdate {
1.326 albertel 2352: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2353: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2354: &Apache::lonnet::allowed('pav',
2355: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2356: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2357: $target eq 'tex' ) {
1.300 albertel 2358: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2359: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2360: (($target eq 'tex') && !$pav)) {
1.326 albertel 2361: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2362: }
2363: }
2364: return '';
1.24 albertel 2365: }
2366:
1.25 albertel 2367: sub end_postanswerdate {
1.159 albertel 2368: return '';
1.24 albertel 2369: }
2370:
1.25 albertel 2371: sub start_notsolved {
1.326 albertel 2372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2373: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2374: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2375: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2376: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2377: if ($gradestatus =~ /^correct/ &&
2378: &Apache::response::show_answer()) {
1.159 albertel 2379: &Apache::lonxml::debug("skipping");
1.326 albertel 2380: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2381: }
1.24 albertel 2382: }
1.159 albertel 2383: return '';
1.24 albertel 2384: }
2385:
1.25 albertel 2386: sub end_notsolved {
1.159 albertel 2387: return '';
1.24 albertel 2388: }
2389:
2390: sub start_solved {
1.326 albertel 2391: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2392: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2393: $target eq 'tex') {
2394: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2395: if ($gradestatus !~ /^correct/ ||
2396: !&Apache::response::show_answer()) {
1.326 albertel 2397: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2398: }
1.24 albertel 2399: }
1.159 albertel 2400: return '';
1.24 albertel 2401: }
2402:
2403: sub end_solved {
1.248 albertel 2404: return '';
2405: }
2406:
2407: sub start_problemtype {
1.326 albertel 2408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2409: my $result;
1.339 albertel 2410: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2411: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2412: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2413: if (!defined($mode)) { $mode='show'; }
2414: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2415: my $found=0;
2416: foreach my $type (split(',',$for)) {
2417: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2418: }
2419: if ($mode eq 'show' && !$found) {
1.326 albertel 2420: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2421: }
2422: if ($mode eq 'hide' && $found) {
1.326 albertel 2423: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2424: }
2425: } elsif ($target eq 'edit') {
2426: $result .=&Apache::edit::tag_start($target,$token);
2427: $result.=&Apache::edit::select_arg('Mode:','mode',
2428: [['show','Show'],
2429: ['hide','Hide']]
2430: ,$token);
2431: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2432: [ ['exam','Exam/Quiz Problem'],
2433: ['survey','Survey'],
1.465 raeburn 2434: ['surveycred','Survey (with credit)'],
2435: ['anonsurvey','Anonymous Survey'],
2436: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2437: ['problem','Homework Problem'],
1.479 raeburn 2438: ['practice','Practice Problem'],
2439: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2440: ,$token);
2441: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2442: } elsif ($target eq 'modified') {
2443: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2444: $safeeval,'mode','for');
2445: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2446: }
2447: return $result;
2448: }
2449:
2450: sub end_problemtype {
1.159 albertel 2451: return '';
1.24 albertel 2452: }
1.34 albertel 2453:
2454: sub start_startouttext {
1.159 albertel 2455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2456: my @result=(''.'');
2457: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2458:
2459: my $nesting =
2460: &Apache::lonxml::set_state('outtext',
2461: &Apache::lonxml::get_state('outtext')+1);
2462: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2463: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2464: }
1.159 albertel 2465: return (@result);
1.34 albertel 2466: }
1.159 albertel 2467:
1.34 albertel 2468: sub end_startouttext {
1.326 albertel 2469: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2470: my $result='';
2471: my $text='';
2472: if ($target eq 'edit') {
1.424 foxr 2473: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2474: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2475: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2476: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2477: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2478: .'</span></td>'
2479: .'<td align="left"><span id="math_'.$areaid.'" />'
2480: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2481: .'<span></td>'
2482: .'<td>'
2483: .&Apache::edit::insertlist($target,$token)
2484: .'</td>'
2485: .'<td align="right" valign="top">' .
2486: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2487: &Apache::edit::end_row().
1.362 albertel 2488: &Apache::edit::start_spanning_row()."\n".
1.255 www 2489: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2490: }
2491: if ($target eq 'modified') {
1.219 albertel 2492: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2493: }
2494: if ($target eq 'tex') {
2495: $result .= '\noindent ';
2496: }
2497: return $result;
1.34 albertel 2498: }
1.159 albertel 2499:
1.34 albertel 2500: sub start_endouttext {
1.159 albertel 2501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2502: my $result='';
2503: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2504: if ($target eq "modified") {
2505: $result='<endouttext />'.
1.377 albertel 2506: &Apache::edit::handle_insertafter('startouttext');
2507: }
1.404 albertel 2508:
2509: my $nesting =
2510: &Apache::lonxml::set_state('outtext',
2511: &Apache::lonxml::get_state('outtext')-1);
2512: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2513: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2514: &Apache::lonxml::set_state('outtext', 0);
2515: }
1.159 albertel 2516: return $result;
1.34 albertel 2517: }
1.159 albertel 2518:
1.34 albertel 2519: sub end_endouttext {
1.159 albertel 2520: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2521: my @result=('','');
2522: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2523: return (@result);
1.34 albertel 2524: }
1.159 albertel 2525:
1.45 albertel 2526: sub delete_startouttext {
1.326 albertel 2527: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2528: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2529: my $text=$$parser['-1']->get_text("/endouttext");
2530: my $ntoken=$$parser['-1']->get_token();
2531: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2532: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2533: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2534: # they did the last time round
2535: &Apache::lonxml::increasedepth($ntoken);
2536: &Apache::lonxml::decreasedepth($ntoken);
2537: return 1;
1.193 www 2538: }
2539:
2540: sub start_simpleeditbutton {
2541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2542: my $result='';
1.284 albertel 2543: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2544: ($target eq 'web') &&
1.330 albertel 2545: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2546: my $url=$env{'request.noversionuri'};
1.193 www 2547: $url=~s/\?.*$//;
1.367 albertel 2548: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2549: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2550: # $result='<p class="LC_warning">'
2551: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2552: # .&Apache::loncommon::help_open_topic('Caching')
2553: # .'</p>';
1.486 www 2554: $result.=&Apache::loncommon::head_subbox(
2555: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2556: .&Apache::lonhtmlcommon::add_item_funclist(
2557: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2558: .&mt('Edit').'</a>')
1.486 www 2559: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2560:
1.193 www 2561: }
2562: return $result;
2563: }
2564:
2565: sub end_simpleeditbutton {
2566: return '';
1.45 albertel 2567: }
1.34 albertel 2568:
1.428 raeburn 2569: sub practice_problem_header {
2570: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2571: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2572: '</span>';
2573: }
2574:
1.479 raeburn 2575: sub randomizetry_problem_header {
2576: my ($problemstatus,$reqtries) = @_;
2577: my ($header,$text);
2578: if ($reqtries > 1) {
2579: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2580: if (($problemstatus eq 'no') ||
2581: ($problemstatus eq 'no_feedback_ever')) {
2582: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2583: } else {
2584: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2585: }
2586: } else {
2587: $header = &mt('New Problem Variation Each Try');
2588: if (($problemstatus eq 'no') ||
2589: ($problemstatus eq 'no_feedback_ever')) {
2590: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2591:
2592: } else {
2593: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2594: }
2595: }
2596: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2597: '<span class="LC_info">'.$text.'</span><hr />';
2598: }
2599:
2600: sub randomizetry_part_header {
2601: my ($problemstatus,$reqtries,$num) = @_;
2602: my ($header,$text);
2603: if ($reqtries eq 'none') {
2604: $header = &mt('No Question Variation');
2605: $text = &mt('For this question there will no new variation after a try.');
2606: } elsif ($reqtries > 1) {
2607: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2608: if (($problemstatus eq 'no') ||
2609: ($problemstatus eq 'no_feedback_ever')) {
2610: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2611: } else {
2612: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2613: }
2614: } else {
2615: $header = &mt('New Question Variation For Each Try');
2616: if (($problemstatus eq 'no') ||
2617: ($problemstatus eq 'no_feedback_ever')) {
2618: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2619: } else {
2620: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2621: }
2622: }
2623: my $output;
2624: if ($num > 1) {
2625: $output .= '<hr />';
2626: }
2627: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2628: '<span class="LC_info">'.$text.'</span><br /><br />';
2629: return $output;
2630: }
2631:
1.1 albertel 2632: 1;
2633: __END__
1.435 jms 2634:
2635: =pod
2636:
2637: =back
2638:
2639: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework