Annotation of loncom/homework/structuretags.pm, revision 1.512.2.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.4! raeburn 4: # $Id: structuretags.pm,v 1.512.2.3 2013/06/05 15:37:26 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 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:
1.500 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:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
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: ##
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 ='';
159: my @languages = (keys(%languages_required));
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' || $target eq 'edit') {
1.512.2.3 raeburn 382: # Breadcrumbs for Authoring Space
1.450 bisitz 383: &Apache::lonhtmlcommon::clear_breadcrumbs();
384: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 385: 'text' => 'Authoring Space',
1.497 raeburn 386: 'href' => &Apache::loncommon::authorspace($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: $form_tag_start.='>'."\n";
1.355 albertel 455:
456: if ($symb =~ /\S/) {
457: $symb=
458: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
459: $form_tag_start.=
1.368 albertel 460: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 461: }
1.159 albertel 462: }
1.343 albertel 463: return ($page_start,$form_tag_start);
1.105 albertel 464: }
465:
1.141 matthew 466: #use Time::HiRes();
1.105 albertel 467: sub get_resource_name {
1.159 albertel 468: my ($parstack,$safeeval)=@_;
1.388 foxr 469: my $name;
1.204 albertel 470: if (defined($Apache::lonhomework::name)) {
1.388 foxr 471: $name = $Apache::lonhomework::name;
472: } else {
473: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 474: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 475: if ($name eq '') {
476: $name=&Apache::lonnet::EXT('resource.title');
477: if ($name eq 'con_lost') { $name = ''; }
478: }
479: if ($name!~/\S+/) {
480: $name=$env{'request.uri'};
481: $name=~s-.*/([^/]+)$-$1-;
482: }
483: # The name has had html tags escaped:
484:
485: $name=~s/</</gs;
486: $name=~s/>/>/gs;
487:
488: $Apache::lonhomework::name=$name;
1.204 albertel 489: }
1.159 albertel 490: return $name;
1.105 albertel 491: }
492:
493: sub setup_rndseed {
1.479 raeburn 494: my ($safeeval,$target)=@_;
1.367 albertel 495: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 496: my ($questiontype,$set_safespace,$rndseed);
497: if ($target eq 'analyze') {
498: $questiontype = $env{'form.grade_questiontype'};
499: }
500: unless (defined($questiontype)) {
501: $questiontype = $Apache::lonhomework::type;
502: }
1.333 albertel 503: if ($env{'request.state'} eq "construct"
504: || $symb eq ''
505: || $Apache::lonhomework::type eq 'practice'
506: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 507: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 508: ['rndseed']);
1.284 albertel 509: $rndseed=$env{'form.rndseed'};
1.159 albertel 510: if (!$rndseed) {
1.162 albertel 511: $rndseed=$Apache::lonhomework::history{'rndseed'};
512: if (!$rndseed) {
513: $rndseed=time;
514: }
1.284 albertel 515: $env{'form.rndseed'}=$rndseed;
1.162 albertel 516: }
1.479 raeburn 517: if (($env{'request.state'} eq "construct") &&
518: ($Apache::lonhomework::type eq 'randomizetry')) {
519: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
520: if ($tries) {
521: $rndseed += $tries;
522: }
1.480 raeburn 523: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 524: }
1.374 albertel 525: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
526: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 527: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 528: srand(time);
529: $rndseed=int(rand(2100000000));
1.284 albertel 530: $env{'form.rndseed'}=$rndseed;
531: delete($env{'form.resetdata'});
532: delete($env{'form.newrandomization'});
1.159 albertel 533: }
1.488 www 534: $rndseed=~s/\,/\:/g;
535: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 536: if (defined($rndseed)) {
537: my ($c1,$c2)=split(/\:/,$rndseed);
538: unless ($c2) { $c2=0; }
539: unless (($c1==int($c1)) && ($c2==int($c2))) {
540: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
541: }
1.187 albertel 542: }
1.247 albertel 543: if ($Apache::lonhomework::history{'resource.CODE'}) {
544: $rndseed=&Apache::lonnet::rndseed();
545: }
1.479 raeburn 546: $set_safespace = 1;
547: } elsif ($questiontype eq 'randomizetry') {
548: if ($target eq 'analyze') {
549: if (defined($env{'form.grade_rndseed'})) {
550: $rndseed = $env{'form.grade_rndseed'};
551: }
552: }
553: unless (($target eq 'analyze') && (defined($rndseed))) {
554: $rndseed=&Apache::lonnet::rndseed();
555: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
556: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
557: $curr_try ++;
558: }
559: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
560: $rndseed = $1;
561: }
562: if ($curr_try) {
563: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
564: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
565: my $inc = int(($curr_try-1)/$reqtries);
566: $rndseed += $inc;
567: } else {
568: $rndseed += $curr_try;
569: }
570: }
571: }
572: $set_safespace = 1;
573: }
574: if ($set_safespace) {
575: if ($safeeval) {
576: &Apache::lonxml::debug("Setting rndseed to $rndseed");
577: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
578: }
579: }
580: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
581: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 582: }
583: return $rndseed;
1.105 albertel 584: }
585:
1.268 albertel 586: sub remember_problem_state {
587: return '
1.284 albertel 588: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
589: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
590: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 591: }
592:
1.487 www 593: sub problem_edit_action_button {
594: my ($name,$action,$accesskey,$text,$flag)=@_;
595: my $actionscript="setmode(this.form,'$action')";
596: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
597: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
598: }
599:
1.423 www 600: sub problem_edit_buttons {
1.487 www 601: my ($mode)=@_;
602: # Buttons that do not save
603: my $result='<div class="LC_edit_problem_discards">'.
604: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
605: if ($mode eq 'editxml') {
606: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
607: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
608: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
609: } else {
610: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
611: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
612: }
613: $result.="\n</div>";
614: # Buttons that save
615: $result.='<div class="LC_edit_problem_saves">';
616: if ($mode eq 'editxml') {
617: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
618: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
619: } else {
620: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
621: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
622: }
623: $result.="\n</div>\n";
624: return $result;
1.423 www 625: }
626:
627: sub problem_edit_header {
1.487 www 628: return '<input type="hidden" name="submitted" value="edit" />'.
629: &remember_problem_state('edit').'
1.423 www 630: <div class="LC_edit_problem_header">
631: <div class="LC_edit_problem_header_title">
632: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
633: </div>'.
1.487 www 634: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 635: &problem_edit_buttons().'
1.459 bisitz 636: <hr style="clear:both;" />
1.409 albertel 637: '.&Apache::lonxml::message_location().'
1.408 albertel 638: </div>
639: '.
1.458 bisitz 640: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 641: }
642:
643: sub problem_edit_footer {
1.412 albertel 644: return '</td></tr></table><br />
645: <div class="LC_edit_problem_footer">
1.453 bisitz 646: <hr />'.
1.423 www 647: &problem_edit_buttons().'
1.459 bisitz 648: <hr style="clear:both;" />
1.412 albertel 649: </div>
650: '.
1.342 albertel 651: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 652: }
653:
1.235 albertel 654: sub option {
655: my ($value,$name) = @_;
656: my $result ="<option value='".$value."' ";
1.284 albertel 657: if ($env{'form.'.$name} eq $value) {
1.235 albertel 658: $result.=" selected='on' ";
659: }
660: $result.='>';
661: return $result;
662: }
663:
1.105 albertel 664: sub problem_web_to_edit_header {
1.159 albertel 665: my ($rndseed)=@_;
1.406 albertel 666: my $result .= '<div class="LC_edit_problem_header">';
667:
668: if (!$Apache::lonhomework::parsing_a_task) {
669: $result .=
670: '<div class="LC_edit_problem_header_title">'.
671: &mt('Problem Testing').
672: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
673: '</div>';
674: } else {
675: $result .=
676: '<div class="LC_edit_problem_header_title">'.
677: &mt('Task Testing').
678: '</div>';
679: }
680:
1.315 albertel 681: my $show_all_foils_text =
682: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 683: &mt('Show All Instances')
684: : &mt('Show All Foils');
1.315 albertel 685:
1.452 bisitz 686: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
687: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 688: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 689: $show_all.= ' /> '.$show_all_foils_text
690: .'</label></span>';
1.406 albertel 691:
692:
1.384 albertel 693:
1.406 albertel 694: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 695: if (!$Apache::lonhomework::parsing_a_task) {
696: $result.="
1.406 albertel 697: <div class='LC_edit_problem_header_row1'>
698: <span class=\"LC_nobreak\">
1.405 albertel 699: ".&mt("Problem Status:")."
1.235 albertel 700: <select name='problemstate'>
1.270 albertel 701: <option value=''></option>
1.235 albertel 702: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
703: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
704: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
705: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
706: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
707: </select>
1.406 albertel 708: </span>
709: <span class=\"LC_nobreak\">
1.405 albertel 710: ".&mt("Problem Type:")."
1.235 albertel 711: <select name='problemtype'>
1.270 albertel 712: <option value=''></option>
1.512.2.1 raeburn 713: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 714: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 715: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 716: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
717: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
718: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 719: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 720: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 721: </select>
1.406 albertel 722: </span>
723: $show_all
724: </div>
725: <div class='LC_edit_problem_header_row2'>
726: <span class=\"LC_nobreak\">
1.405 albertel 727: ".&mt("Feedback Mode:")."
1.235 albertel 728: <select name='problemstatus'>
729: <option value=''></option>
1.242 albertel 730: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 731: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
732: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 733: </select>
1.406 albertel 734: </span>
735: ";
736:
1.376 albertel 737: } elsif ($Apache::lonhomework::parsing_a_task) {
738: $result.="
1.406 albertel 739: <div class='LC_edit_problem_header_row1'>
740: <span class=\"LC_nobreak\">
1.405 albertel 741: ".&mt("Problem Status:")."
1.376 albertel 742: <select name='problemstate'>
743: <option value=''></option>
744: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
745: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
746: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
747: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
748: </select>
1.406 albertel 749: </span>
750: $show_all
751: ";
752: }
753: $result.='
754: <span class="LC_nobreak">
755: '.&mt('Apply style file: ').'
756: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
757: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
758: </span>
1.422 www 759: </div>
760: <div class="LC_edit_problem_header_row1">'.
761: &Apache::lonxml::renderingoptions().'
1.406 albertel 762: </div>
763: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
764: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
765: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
766: </div>
1.453 bisitz 767: <hr />
1.406 albertel 768: <div class="LC_edit_problem_header_randomize_row">
769: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
770: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 771: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 772: $rndseed.'"
773: onchange="javascript:document.lonhomework.changerandseed.click()" />';
774:
775: if (!$Apache::lonhomework::parsing_a_task) {
776: my $numtoanalyze=$env{'form.numtoanalyze'};
777: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 778: $result .= '<span class="LC_nobreak">'.
779: &mt('[_1] for [_2] versions.',
1.416 raeburn 780: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 781: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
782: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 783: $numtoanalyze.'" size="5" />').
784: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
785: '</span>';
786:
1.313 albertel 787: }
1.406 albertel 788:
789: $result.='
790: </div>
1.453 bisitz 791: <hr />
1.447 bisitz 792: <div>';
1.416 raeburn 793: $result.='<input type="hidden" name="problemmode" value="view" />';
794: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
795: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
796: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
797: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 798: $result.='
799: </div>
1.453 bisitz 800: <hr />
1.409 albertel 801: '.&Apache::lonxml::message_location().'
1.406 albertel 802: </div>';
1.159 albertel 803: return $result;
1.48 albertel 804: }
805:
1.65 albertel 806: sub initialize_storage {
1.357 albertel 807: my ($given_symb) = @_;
1.353 albertel 808: undef(%Apache::lonhomework::results);
809: undef(%Apache::lonhomework::history);
1.357 albertel 810: my ($symb,$courseid,$domain,$name) =
1.367 albertel 811: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 812:
813: # anonymous users (CODEd exams) have no data
814: if ($name eq 'anonymous'
815: && !defined($domain)) {
816: return;
817: }
818:
1.333 albertel 819: if ($env{'request.state'} eq 'construct'
820: || $symb eq ''
821: || $Apache::lonhomework::type eq 'practice') {
822:
823: my $namespace = $symb || $env{'request.uri'};
824: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 825: ($env{'form.resetdata'} eq &mt('New Problem Variation')
826: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 827: $env{'form.newrandomization'} eq &mt('New Randomization')) {
828: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
829: &Apache::lonxml::debug("Attempt reset");
830: }
1.159 albertel 831: %Apache::lonhomework::history=
1.333 albertel 832: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 833: my ($temp)=keys %Apache::lonhomework::history ;
834: &Apache::lonxml::debug("Return message of $temp");
835: } else {
836: %Apache::lonhomework::history=
837: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
838: }
1.353 albertel 839:
1.159 albertel 840: #ignore error conditions
1.67 albertel 841: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 842: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 843: }
844:
1.435 jms 845: =pod
846:
847: =item finalize_storage()
848:
849: Stores away the result has to a student's environment
850: checks form.grade_ for specific values, other wises stores
851: to the running users environment
852: Will increment totals for attempts, students, and corrects
853: if running user has student role.
854:
855: =cut
856:
857:
1.65 albertel 858: sub finalize_storage {
1.357 albertel 859: my ($given_symb) = @_;
1.159 albertel 860: my $result;
1.289 albertel 861: if (%Apache::lonhomework::results) {
1.323 albertel 862: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
863: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 864: my ($symb,$courseid,$domain,$name) =
1.367 albertel 865: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 866: if ($env{'request.state'} eq 'construct'
867: || $symb eq ''
868: || $Apache::lonhomework::type eq 'practice') {
869: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 870: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 871: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 872: $namespace,'',$domain,$name);
1.159 albertel 873: &Apache::lonxml::debug('Construct Store return message:'.$result);
874: } else {
875: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
876: $symb,$courseid,$domain,$name);
877: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 878: &store_aggregates($symb,$courseid);
1.159 albertel 879: }
1.323 albertel 880: } else {
881: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 882: }
1.159 albertel 883: return $result;
1.65 albertel 884: }
885:
1.435 jms 886: =pod
887:
888: item store_aggregates()
889:
890: Sends hash of values to be incremented in nohist_resourcetracker.db
891: for the course. Increments total number of attempts, unique students
892: and corrects for each part for an instance of a problem, as appropriate.
893:
894: =cut
895:
1.285 raeburn 896: sub store_aggregates {
897: my ($symb,$courseid) = @_;
1.479 raeburn 898: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 899: my @parts;
1.288 albertel 900: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
901: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 902: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 903: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 904: push(@parts, $1);
1.285 raeburn 905: }
906: }
1.286 albertel 907: foreach my $part (@parts) {
1.470 raeburn 908: if ($env{'request.role'} =~/^st/) {
909: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
910: eq 'APPROX_ANS' ||
911: $Apache::lonhomework::results{'resource.'.$part.'.award'}
912: eq 'EXACT_ANS') {
913: $aggregate{$symb."\0".$part."\0correct"} = 1;
914: }
915: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
916: $aggregate{$symb."\0".$part."\0users"} = 1;
917: } else {
918: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
919: if ($last_reset) {
920: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
921: $aggregate{$symb."\0".$part."\0users"} = 1;
922: }
923: }
924: }
925: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 926: }
1.470 raeburn 927: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 928: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
929: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
930: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
931: $randtrycounter{$symb."\0".$part} = 1;
932: } else {
933: $anoncounter{$symb."\0".$part} = 1;
934: }
1.470 raeburn 935: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
936: if ($needsrelease) {
937: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
938: if ($curr_required eq '') {
1.471 raeburn 939: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 940: } else {
941: my ($currmajor,$currminor) = split(/\./,$curr_required);
942: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
943: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 944: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 945: }
1.292 raeburn 946: }
947: }
1.285 raeburn 948: }
949: }
1.292 raeburn 950: if (keys (%aggregate) > 0) {
1.289 albertel 951: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 952: $cdomain,$cname);
953: }
1.472 raeburn 954: if (keys(%anoncounter) > 0) {
1.481 raeburn 955: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
956: $cdomain,$cname);
1.472 raeburn 957: }
1.479 raeburn 958: if (keys(%randtrycounter) > 0) {
1.481 raeburn 959: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
960: $cdomain,$cname);
1.479 raeburn 961: }
1.292 raeburn 962: }
1.289 albertel 963:
1.65 albertel 964: sub checkout_msg {
1.211 albertel 965: my %lt=&Apache::lonlocal::texthash(
966: 'resource'=>'The resource needs to be checked out',
967: '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.',
968: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 969: 'checkout'=>'Check out Exam for Viewing',
970: 'checkout?'=>'Check out Exam?');
1.352 albertel 971: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 972: return (<<ENDCHECKOUT);
1.211 albertel 973: <h2>$lt{'resource'}</h2>
974: <p>$lt{'id_expln'}</p>
1.449 bisitz 975: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 976: <form name="checkout" method="post" action="$uri">
1.91 albertel 977: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4! raeburn 978: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 979: </form>
980: ENDCHECKOUT
981: }
982:
1.252 albertel 983: sub firstaccess_msg {
1.253 albertel 984: my ($time,$symb)=@_;
1.414 albertel 985: my $result;
986: my @interval=&Apache::lonnet::EXT("resource.0.interval");
987: if ($interval[1] eq 'map') {
988: my ($map)=&Apache::lonnet::decode_symb($symb);
989: my $foldertitle=&Apache::lonnet::gettitle($map);
990:
991: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 992: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
993: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
994: ,$foldertitle,$time)."</p>";
1.414 albertel 995: } elsif ($interval[1] eq 'course') {
996: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 997: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 998: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 999: ,$course,$time)."</p>";
1.414 albertel 1000: } else {
1001: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1002: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1003: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1004: ,$title,$time)."</p>";
1.414 albertel 1005: }
1.352 albertel 1006: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1007: my $buttontext = &mt('Show Resource');
1008: my $timertext = &mt('Start Timer?');
1.414 albertel 1009: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1010: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1011: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4! raeburn 1012: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1013: </form>
1014: ENDCHECKOUT
1.414 albertel 1015: return $result;
1.252 albertel 1016: }
1017:
1.204 albertel 1018: sub init_problem_globals {
1019: my ($type)=@_;
1020: #initialize globals
1.308 foxr 1021: # For problems, we start out in part 0 (outside a <part> tag).
1022: # and part 0 is used to describe the main body of the <problem>
1023: #
1.204 albertel 1024: if ($type eq 'problem') {
1025: $Apache::inputtags::part='0';
1026: @Apache::inputtags::partlist=('0');
1.405 albertel 1027: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1028: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1029:
1.266 albertel 1030: } elsif ($type eq 'library') {
1.204 albertel 1031: $Apache::inputtags::part='';
1032: @Apache::inputtags::partlist=();
1.405 albertel 1033: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1034: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1035:
1.304 albertel 1036: } elsif ($type eq 'Task') {
1037: $Apache::inputtags::part='0';
1038: @Apache::inputtags::partlist=('0');
1.405 albertel 1039: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1040: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1041: }
1.477 www 1042: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1043: @Apache::inputtags::responselist = ();
1044: @Apache::inputtags::importlist = ();
1045: @Apache::inputtags::previous=();
1046: @Apache::inputtags::previous_version=();
1047: $Apache::structuretags::printanswer='No';
1048: @Apache::structuretags::whileconds=();
1049: @Apache::structuretags::whilebody=();
1050: @Apache::structuretags::whileline=();
1051: $Apache::lonhomework::scantronmode=0;
1052: undef($Apache::lonhomework::name);
1.358 albertel 1053: undef($Apache::lonhomework::default_type);
1054: undef($Apache::lonhomework::type);
1.204 albertel 1055: }
1056:
1057: sub reset_problem_globals {
1058: my ($type)=@_;
1059: undef(%Apache::lonhomework::history);
1060: undef(%Apache::lonhomework::results);
1061: undef($Apache::inputtags::part);
1.498 raeburn 1062: if ($type eq 'Task') {
1063: undef($Apache::inputtags::slot_name);
1064: }
1.208 albertel 1065: #don't undef this, lonhomework.pm takes care of this, we use this to
1066: #detect if we try to do 2 problems in one file
1067: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1068: undef($Apache::lonhomework::name);
1.358 albertel 1069: undef($Apache::lonhomework::default_type);
1070: undef($Apache::lonhomework::type);
1071: undef($Apache::lonhomework::scantronmode);
1072: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1073: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1074: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1075: }
1076:
1.241 albertel 1077: sub set_problem_state {
1.240 albertel 1078: my ($part)=@_;
1.284 albertel 1079: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1080: $Apache::lonhomework::history{"resource.$part.solved"}=
1081: 'correct_by_student';
1082: }
1083: }
1084:
1.241 albertel 1085: sub get_problem_status {
1086: my ($part)=@_;
1.267 albertel 1087: my $problem_status;
1.284 albertel 1088: if ($env{'request.state'} eq 'construct' &&
1089: defined($env{'form.problemstatus'})) {
1090: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1091: } else {
1092: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1093: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1094: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1095: }
1096: return $problem_status;
1097: }
1098:
1.9 albertel 1099: sub start_problem {
1.326 albertel 1100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1101:
1.311 foxr 1102: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1103: if (!$Apache::lonxml::metamode) {
1104: &Apache::lonxml::startredirection();
1105: }
1.311 foxr 1106:
1.308 foxr 1107: # Problems don't nest and we don't allow more than one <problem> in
1108: # a .problem file.
1109: #
1.184 albertel 1110: if ( $Apache::inputtags::part ne '' ||
1111: $Apache::lonhomework::parsing_a_problem) {
1112: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1113: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1114: return '';
1115: }
1.184 albertel 1116:
1117: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1118: &init_problem_globals('problem');
1.166 albertel 1119:
1.284 albertel 1120: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1121: $Apache::lonhomework::scantronmode=1;
1122: }
1.161 albertel 1123:
1.159 albertel 1124: if ($target ne 'analyze') {
1.415 raeburn 1125: my $type = &Apache::lonnet::EXT('resource.0.type');
1126: $Apache::lonhomework::type=$type;
1.284 albertel 1127: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1128: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1129: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1130: }
1.332 albertel 1131: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1132: }
1.164 albertel 1133: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1134: my $uri=$env{'request.uri'};
1.159 albertel 1135: if ($uri=~/\.(\w+)$/) {
1136: $Apache::lonhomework::type=$1;
1137: &Apache::lonxml::debug("Using type of $1");
1138: } else {
1139: $Apache::lonhomework::type='problem';
1140: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1141: }
1.87 albertel 1142: }
1.301 albertel 1143: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1144:
1.363 albertel 1145: &initialize_storage();
1.389 albertel 1146: if ($target ne 'analyze'
1147: && $env{'request.state'} eq 'construct') {
1148: &set_problem_state('0');
1149: }
1150:
1.366 albertel 1151: if ($target eq 'web') {
1152: &Apache::lonxml::debug(" grading history ");
1153: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1154: }
1.363 albertel 1155:
1.159 albertel 1156: #added vars to the scripting enviroment
1.213 albertel 1157: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1158: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1159: &Apache::run::run($expression,$safeeval);
1.159 albertel 1160: my $status;
1161: my $accessmsg;
1.508 raeburn 1162: my $resource_due;
1.159 albertel 1163:
1.343 albertel 1164: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1165: my ($result,$form_tag_start,$slot_name,$slot);
1166:
1167: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1168: $target eq 'tex') {
1169: if ($env{'form.markaccess'}) {
1170: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1171: &Apache::lonnet::set_first_access($interval[1]);
1172: }
1173:
1174: ($status,$accessmsg,$slot_name,$slot) =
1175: &Apache::lonhomework::check_slot_access('0','problem');
1176: push (@Apache::inputtags::status,$status);
1177: }
1178:
1.354 albertel 1179: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1180: || $target eq 'edit') {
1.350 albertel 1181: ($result,$form_tag_start) =
1182: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1183: $name);
1184: }
1185:
1.284 albertel 1186: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1187:
1.479 raeburn 1188: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1189: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1190: $target eq 'tex') {
1.479 raeburn 1191:
1.159 albertel 1192: #handle rand seed in construction space
1.479 raeburn 1193: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1194: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1195:
1.333 albertel 1196: if ($env{'request.state'} ne "construct" &&
1197: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1198: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1199: $rndseed.'" />'.
1200: '<input type="submit" name="resetdata"
1201: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1202: if (exists($env{'form.username'})) {
1203: $form_tag_start.=
1.164 albertel 1204: '<input type="hidden" name="username"
1.284 albertel 1205: value="'.$env{'form.username'}.'" />';
1.334 albertel 1206: }
1.462 raeburn 1207: if ($env{'request.role.adv'}) {
1208: $form_tag_start.= ' <label class="LC_nobreak">'
1209: .'<input type="checkbox" name="showallfoils"';
1210: if (defined($env{'form.showallfoils'})) {
1211: $form_tag_start.=' checked="checked"';
1212: }
1213: $form_tag_start.= ' /> '
1214: .&mt('Show All Foils')
1215: .'</label>';
1216: }
1.417 www 1217: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1218: $form_tag_start.=&practice_problem_header();
1.417 www 1219: }
1.462 raeburn 1220: $form_tag_start.='<hr />';
1.479 raeburn 1221: } elsif (($env{'request.state'} ne "construct") &&
1222: ($Apache::lonhomework::type eq 'randomizetry') &&
1223: ($status eq 'CAN_ANSWER')) {
1224: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1225: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1226: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1227: }
1.324 albertel 1228:
1.159 albertel 1229: my $expression='$external::datestatus="'.$status.'";';
1230: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1231: &Apache::run::run($expression,$safeeval);
1232: &Apache::lonxml::debug("Got $status");
1.324 albertel 1233:
1.159 albertel 1234: if (( $status eq 'CLOSED' ) ||
1235: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1236: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1237: ( $status eq 'BANNED') ||
1.216 albertel 1238: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1239: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1240: ( $status eq 'NOTRESERVABLE') ||
1241: ( $status eq 'RESERVABLE') ||
1242: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1243: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1244: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1245: $style);
1.159 albertel 1246: if ( $target eq "web" ) {
1.343 albertel 1247: my $msg;
1.159 albertel 1248: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1249: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1250: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1251: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1252: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1253: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1254: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1255: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1256: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1257: }
1.216 albertel 1258: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1259: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1260: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1261: $msg.=&checkout_msg();
1.252 albertel 1262: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1263: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1264: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1265: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1266: } elsif ($status eq 'RESERVABLE') {
1267: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1268: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1269: '<br />'.
1270: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1271: } elsif ($status eq 'RESERVABLE_LATER') {
1272: $msg.=&mt('Window to make a reservation will open [_1].',
1273: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1274: } elsif ($status eq 'NOTRESERVABLE') {
1275: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1276: }
1277: $result.=$msg.'<br />';
1278: } elsif ($target eq 'tex') {
1.332 albertel 1279: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1280: : '\begin{minipage}{\textwidth}';
1.443 foxr 1281: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1282: $startminipage.'\vskip 0 mm';
1.159 albertel 1283: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1284: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1285: } else {
1.211 albertel 1286: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1287: }
1288: }
1.324 albertel 1289: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1290: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1291: $style);
1.324 albertel 1292: if ($target eq 'web') {
1.375 albertel 1293: $result .=
1294: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1295: } elsif ($target eq 'grade') {
1296: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1297: 'problem');
1298: }
1.159 albertel 1299: } elsif ($target eq 'web') {
1.508 raeburn 1300: if ($status eq 'CAN_ANSWER') {
1301: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1302: if ($slot_name ne '') {
1303: my $checked_in =
1304: $Apache::lonhomework::history{'resource.0.checkedin'};
1305: if ($checked_in eq '') {
1306: # unproctored slot access, self checkin
1307: &Apache::bridgetask::check_in('problem',undef,undef,
1308: $slot_name);
1309: $checked_in =
1310: $Apache::lonhomework::results{"resource.0.checkedin"};
1311: }
1312: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1313: if ($slot->{'starttime'} < time()) {
1314: if (!$resource_due) {
1315: $resource_due = $slot->{'endtime'};
1316: } elsif ($slot->{'endtime'} < $resource_due) {
1317: $resource_due = $slot->{'endtime'};
1318: }
1319: }
1320: }
1321: }
1322: if ($resource_due) {
1323: my $time_left = $resource_due - time();
1324: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1325: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1326: }
1327: }
1328: }
1.368 albertel 1329: $result.="\n $form_tag_start \t".
1.227 albertel 1330: '<input type="hidden" name="submitted" value="yes" />';
1331: # create a page header and exit
1.284 albertel 1332: if ($env{'request.state'} eq "construct") {
1333: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1334: if ($Apache::lonhomework::type eq 'practice') {
1335: $result.= '<input type="submit" name="resetdata" '.
1336: 'value="'.&mt('New Problem Variation').'" />'.
1337: &practice_problem_header().'<hr />';
1338: }
1.227 albertel 1339: }
1340: # if we are viewing someone else preserve that info
1.284 albertel 1341: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1342: foreach my $field ('symb','courseid','domain','username') {
1343: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1344: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1345: }
1.479 raeburn 1346: foreach my $field ('trial','questiontype') {
1347: if ($env{"form.grade_$field"} ne '') {
1348: $result .= '<input type="hidden" name="grade_'.$field.
1349: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1350: }
1351: }
1.159 albertel 1352: }
1.490 raeburn 1353: if ($env{'form.grade_imsexport'}) {
1354: $result = '';
1355: }
1.159 albertel 1356: } elsif ($target eq 'tex') {
1.319 foxr 1357: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1358: $result .= &select_metadata_hyphenation();
1359:
1.319 foxr 1360:
1.99 sakharuk 1361: }
1.159 albertel 1362: } elsif ($target eq 'edit') {
1.343 albertel 1363: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1364: $Apache::lonxml::warnings_error_header=
1365: &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 1366: my $temp=&Apache::edit::insertlist($target,$token);
1367: $result.=$temp;
1368: } elsif ($target eq 'modified') {
1369: $result=$token->[4];
1370: } else {
1371: # page_start returned a starting result, delete it if we don't need it
1372: $result = '';
1.99 sakharuk 1373: }
1.159 albertel 1374: return $result;
1.9 albertel 1375: }
1376:
1377: sub end_problem {
1.159 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1379: my $result;
1.310 foxr 1380:
1.321 albertel 1381: if (!$Apache::lonxml::metamode) {
1382: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1383: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1384: }
1.319 foxr 1385:
1386: if ($target eq 'tex') {
1.321 albertel 1387: # Figure out the front matter and replace the
1388: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1389: # this in end_problem because whether or not we display due
1390: # dates depends on whether due dates have already been
1391: # displayed in the problem parts.
1392:
1.319 foxr 1393: my $frontmatter = '';
1394: my $startminipage = '';
1395: if (not $env{'form.problem_split'}=~/yes/) {
1396: $startminipage = '\begin{minipage}{\textwidth}';
1397: }
1398: my $id = $Apache::inputtags::part;
1399: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1400: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1401: my @packages = split /,/,$packages;
1402: my $allow_print_points = 0;
1403: foreach my $partial_key (@packages) {
1404: if ($partial_key=~m/^part_0$/) {
1405: $allow_print_points=1;
1406: }
1407: }
1408: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1409: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1410: if (lc($env{'course.'.$env{'request.course.id'}.
1411: '.disableexampointprint'}) eq 'yes') {
1412: $allow_print_points=0;
1413: }
1414: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1415: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.500 foxr 1416: &clear_required_languages();
1.319 foxr 1417: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1418: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1419:
1420: # Figure out what the due date is and if we need to print
1421: # it in the problem header. We have been logging the
1422: # last due date written to file.
1423:
1424: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1425: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1426: my $duedate_text = &mt('Due date: [_1]'
1427: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1428: my $temp_file;
1429: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1430:
1431: # Figure out what the last printed due date is or set it
1432: # to the epoch if no duedates have been printed.
1433:
1434: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1435: if (-e $filename) {
1436: $temp_file = Apache::File->new($filename);
1437: my @due_file = <$temp_file>;
1438: $due_file_content = $due_file[$#due_file];
1439: chomp $due_file_content;
1440: }
1441:
1442: # We display the due date iff it is not the same as the last
1443: # duedate in problem header ($due_file_content), and
1444: # none of our parts displayed a duedate.
1445: #
1446: my $parts_with_displayduedate;
1447: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1448: $parts_with_displayduedate =
1449: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1450: } else {
1451: $parts_with_displayduedate = 0;
1452: }
1453: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1454: $temp_file = Apache::File->new('>'.$filename);
1455: print $temp_file "$duetime\n";
1456: if (not $env{'request.symb'} =~ m/\.page_/) {
1457: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1458: $frontmatter .= $begin_doc.
1.448 bisitz 1459: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1460: } else {
1461: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1462: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1463: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1464: }
1.319 foxr 1465: }
1466: } else {
1.448 bisitz 1467: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1468: }
1469: } else {
1470: if (not $env{'request.symb'} =~ m/\.page_/) {
1471: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1472: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1473: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1474: }
1.319 foxr 1475: } else {
1.381 albertel 1476: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1477: }
1478: }
1479: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1480: }
1481:
1.159 albertel 1482: my $status=$Apache::inputtags::status['-1'];
1483: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1484: $target eq 'tex') {
1.249 albertel 1485: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1486: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1487: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1488: &Apache::inputtags::grade;
1.324 albertel 1489: } elsif ($status eq 'NEEDS_CHECKIN') {
1490: # no need to grade, and don't want to hide data
1.249 albertel 1491: } else {
1492: # move any submission data to .hidden
1493: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1494: }
1.159 albertel 1495: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1496: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1497: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1498: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1499: # if part is zero, no <part>s existed, so we need show the current
1500: # grading status
1501: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1502: $result.= $gradestatus;
1503: }
1504: if (
1.284 albertel 1505: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1506: ($target eq 'answer') || ($target eq 'tex')
1507: ) {
1.490 raeburn 1508: if (($target ne 'tex') &&
1509: ($env{'form.answer_output_mode'} ne 'tex') &&
1510: (!$env{'form.grade_imsexport'})) {
1.254 www 1511: $result.="</form>";
1.159 albertel 1512: }
1513: if ($target eq 'web') {
1.507 raeburn 1514: #
1515: # Closing </body></html> not added by end_page().
1516: # Added separately at end of this routine, after added
1517: # <script></script> so document will be valid xhtml.
1518: #
1519: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1520: 'notbody' => 1});
1.159 albertel 1521: } elsif ($target eq 'tex') {
1.178 sakharuk 1522: my $endminipage = '';
1.284 albertel 1523: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1524: $endminipage = '\end{minipage}';
1525: }
1.284 albertel 1526: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1527: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1528: } else {
1.262 sakharuk 1529: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1530: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1531: $result .= $endminipage.'\end{document} ';
1532: } else {
1.382 albertel 1533: $result .= $endminipage;
1.262 sakharuk 1534: }
1.159 albertel 1535: }
1536: }
1537: }
1.476 www 1538: if ($target eq 'web') {
1539: $result.=&Apache::functionplotresponse::init_script();
1540: }
1.159 albertel 1541: if ($target eq 'grade') {
1542: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1543: &finalize_storage();
1544: }
1.284 albertel 1545: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1546: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1547: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1548: # normally we get it from above, but in CSTR
1.172 albertel 1549: # we always show answer mode too.
1.159 albertel 1550: }
1551: } elsif ($target eq 'meta') {
1552: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1553: @Apache::inputtags::response=();
1.159 albertel 1554: $result=&Apache::response::mandatory_part_meta;
1555: }
1.215 albertel 1556: $result.=&Apache::response::meta_part_order();
1.258 albertel 1557: $result.=&Apache::response::meta_response_order();
1.159 albertel 1558: } elsif ($target eq 'edit') {
1559: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1560: $result .= &problem_edit_footer();
1.320 albertel 1561: } elsif ($target eq 'modified') {
1562: $result .= $token->[2];
1.159 albertel 1563: }
1.155 albertel 1564:
1.284 albertel 1565: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1566: &Apache::inputtags::check_for_duplicate_ids();
1567: }
1.204 albertel 1568:
1569: &reset_problem_globals('problem');
1.159 albertel 1570:
1.502 foxr 1571: #
1572: # This shouild be just above the return so that the
1573: # time put in the javascript is as late as possible in the
1574: # computation:
1575: #
1576: if ($target eq 'web') {
1577: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1578: #
1579: # Closing tags delayed so any <script></script> tags
1580: # not in head can appear inside body, for valid xhtml.
1581: #
1582: $result .= "</body>\n</html>";
1.502 foxr 1583: }
1.159 albertel 1584: return $result;
1.48 albertel 1585: }
1586:
1.108 albertel 1587:
1.48 albertel 1588: sub start_library {
1.159 albertel 1589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1590: my ($result,$form_tag_start);
1.371 albertel 1591: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1592: &init_problem_globals('library');
1593: $Apache::lonhomework::type='problem';
1594: }
1.159 albertel 1595: if ($target eq 'edit') {
1.343 albertel 1596: ($result,$form_tag_start)=
1597: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1598: 'Edit');
1599: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1600: my $temp=&Apache::edit::insertlist($target,$token);
1601: $result.=$temp;
1602: } elsif ($target eq 'modified') {
1603: $result=$token->[4];
1.340 albertel 1604: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1605: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1606: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1607: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1608: ($result,$form_tag_start)=
1609: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1610: $name);
1.479 raeburn 1611: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1612: $result.=" \n $form_tag_start".
1.159 albertel 1613: '<input type="hidden" name="submitted" value="yes" />';
1614: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1615: if ($Apache::lonhomework::type eq 'practice') {
1616: $result.= '<input type="submit" name="resetdata" '.
1617: 'value="'.&mt('New Problem Variation').'" />'.
1618: &practice_problem_header().'<hr />';
1619: }
1.159 albertel 1620: }
1621: return $result;
1.48 albertel 1622: }
1623:
1624: sub end_library {
1.159 albertel 1625: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1626: my $result='';
1627: if ($target eq 'edit') {
1628: $result=&problem_edit_footer();
1.371 albertel 1629: } elsif ($target eq 'web'
1630: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1631: && $env{'request.state'} eq "construct") {
1.349 albertel 1632: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1633: }
1.371 albertel 1634: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1635: &reset_problem_globals('library');
1636: }
1.159 albertel 1637: return $result;
1.197 www 1638: }
1639:
1640: sub start_definetag {
1.326 albertel 1641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1642:
1643: my $result;
1644:
1645: my $name = $token->[2]->{'name'};
1.326 albertel 1646: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1647: if ($target eq 'web') {
1648: if ($name=~/^\//) {
1649: $result=
1650: '<br /><table class="LC_sty_end"><tr><th>'.
1651: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1652: } else {
1653: $result=
1654: '<br /><table class="LC_sty_begin"><tr><th>'.
1655: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1656: }
1657: $skip = &HTML::Entities::encode($skip, '<>&"');
1658: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1659: }
1660: return $result;
1661: }
1662:
1663: sub end_definetag {
1664: return '';
1.1 albertel 1665: }
1666:
1667: sub start_block {
1.201 albertel 1668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1669:
1670: my $result;
1.1 albertel 1671:
1.339 albertel 1672: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1673: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1674: my $code = $token->[2]->{'condition'};
1.385 albertel 1675: if (defined($code) && $code ne '') {
1.137 albertel 1676: if (!$Apache::lonxml::default_homework_loaded) {
1677: &Apache::lonxml::default_homework_load($safeeval);
1678: }
1.131 albertel 1679: $result = &Apache::run::run($code,$safeeval);
1680: &Apache::lonxml::debug("block :$code: returned :$result:");
1681: } else {
1682: $result='1';
1683: }
1684: if ( ! $result ) {
1.201 albertel 1685: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1686: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1687: }
1688: $result='';
1689: } elsif ($target eq 'edit') {
1690: $result .=&Apache::edit::tag_start($target,$token);
1691: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1692: $token,40);
1693: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1694: } elsif ($target eq 'modified') {
1695: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1696: $safeeval,'condition');
1697: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1698: }
1.131 albertel 1699: return $result;
1.1 albertel 1700: }
1701:
1702: sub end_block {
1.167 www 1703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1704: my $result;
1705: if ($target eq "edit") {
1706: $result.= &Apache::edit::tag_end($target,$token,'');
1707: }
1708: return $result;
1709: }
1.500 foxr 1710: #
1711: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1712: # ...
1713: # </languageblock>
1714: #
1715: # This declares the intent to provide content that can be rendered in the
1716: # set of languages in the include specificatino but not in the exclude
1717: # specification. If a currently preferred language is in the include list
1718: # the content in the <languageblock>...</languageblock> is rendered
1719: # If the currently preferred language is in the exclude list,
1720: # the content in the <languageblock>..></languageblock is not rendered.
1721: #
1722: # Pathalogical case handling:
1723: # - Include specified, without the preferred language but exclude specified
1724: # also without the preferred langauge results in rendering the block.
1725: # - Exclude specified without include and excluden not containing a
1726: # preferred language renders the block.
1727: # - Include and exclude both specifying the preferred language does not
1728: # render the block.
1729: # - If neither include/exclude is specified, the block gets rendered.
1730: #
1731: # This tag has no effect when target is in {edit, modified}
1732: #
1.167 www 1733: sub start_languageblock {
1.201 albertel 1734: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1735:
1.500 foxr 1736: my $result = '';
1.167 www 1737:
1.339 albertel 1738: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1739: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1740: my $include = $token->[2]->{'include'};
1741: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1742: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1743:
1744: # This should not even happen, since we should at least have the server language
1745:
1746: if (!$preferred_languages[0]) {
1747: $preferred_languages[0]='en';
1748: }
1749:
1750: # Now loop over all languages in order of preference
1751:
1752: my $render;
1.398 www 1753: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1754:
1755: # If neither include/nor exlude is present the block is going
1756: # to get rendered.
1757:
1.399 www 1758: my $found=0;
1.500 foxr 1759: $render=1;
1760:
1761: # If include is specified, don't render the block
1762: # unless the preferred language is included in the set.
1763:
1.398 www 1764: if ($include) {
1.500 foxr 1765: $render=0;
1.398 www 1766: foreach my $included_language (split(/\,/,$include)) {
1767: if ($included_language eq $preferred_language) {
1.500 foxr 1768: $render=1;
1.399 www 1769: $found=1;
1.500 foxr 1770: last; # Only need to find the first.
1.398 www 1771: }
1772: }
1773: }
1.500 foxr 1774: # Do we have an exclude argument?
1775: # If so, and one of the languages matches a preferred language
1776: # inhibit rendering the block. Note that in the pathalogical case the
1777: # author has specified a preferred language in both the include and exclude
1778: # attribte exclude is preferred.
1779:
1.398 www 1780: if ($exclude) {
1.500 foxr 1781: $render=1;
1.398 www 1782: foreach my $excluded_language (split(/\,/,$exclude)) {
1783: if ($excluded_language eq $preferred_language) {
1.500 foxr 1784: $render=0;
1.399 www 1785: $found=1;
1.500 foxr 1786: last; # Only need to find the first.
1.398 www 1787: }
1788: }
1789: }
1.500 foxr 1790: if ($found) {
1791: last; # Done on any match of include or exclude.
1792: }
1.398 www 1793: }
1.500 foxr 1794: # If $render not true skip the entire block until </languageblock>
1795: #
1796:
1797: if ( ! $render ) {
1.201 albertel 1798: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1799: $style);
1800: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1801: }
1.500 foxr 1802: # If $render is true, we've not skipped the contents of the <languageglock>
1803: # and the normal loncapa processing flow will render it as a matter of course.
1804:
1.167 www 1805: } elsif ($target eq 'edit') {
1806: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1807: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1808: $token,40);
1.211 albertel 1809: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1810: $token,40);
1811: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1812: } elsif ($target eq 'modified') {
1813: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1814: $safeeval,'include',
1815: 'exclude');
1.167 www 1816: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1817: }
1818: return $result;
1819: }
1820:
1821: sub end_languageblock {
1.170 www 1822: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1823: my $result;
1.201 albertel 1824: if ($target eq "edit") {
1.170 www 1825: $result.= &Apache::edit::tag_end($target,$token,'');
1826: }
1827: return $result;
1828: }
1.500 foxr 1829: # languagblock specific tags:
1830: {
1831: # For chunks of a resource that has translations, this hash contains
1832: # the translations available indexed by language name.
1833: #
1834:
1835: my %available_texts;
1.170 www 1836:
1.500 foxr 1837: # <translated> starts a block of a resource that has multiple translations.
1838: # See the <lang> tag as well.
1839: # When </translated> is encountered if there is a translation for the
1840: # currently preferred language, that is rendered inthe web/tex/webgrade
1841: # targets. Otherwise, the default text is rendered.
1842: #
1843: # Note that <lang> is only registered for the duration of the
1844: # <translated>...</translated> block
1845: #
1846: # Pathalogical case handling:
1847: # - If there is no <lang> that specifies a 'default' and there is no
1848: # translation that matches a preferred language, nothing is rendered.
1849: # - Nested <translated>...</translated> might be linguistically supported by
1850: # XML due to the stack nature of tag registration(?) however the rendered
1851: # output will be incorrect because there is only one %available_texts
1852: # has and end_translated clears it.
1853: # - Material outside of a <lang>...</lang> block within the
1854: # <translated>...<translated> block won't render either e.g.:
1855: # <translated>
1856: # The following will be in your preferred langauge:
1857: # <lang which='en'>
1858: # This section in english
1859: # </lang>
1860: # <lang which='sgeiso'>
1861: # Hier es ist auf Deutsch.
1862: # </lang>
1863: # <lang which='sfriso'>
1864: # En Francais
1865: # </lang>
1866: # </translated>
1867: #
1868: # The introductory text prior to the first <lang> tag is not rendered.
1869: #
1.397 albertel 1870: sub start_translated {
1871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1872: &Apache::lonxml::register('Apache::structuretags',('lang'));
1873: undef(%available_texts);
1874: }
1875:
1876: sub end_translated {
1877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1878: my $result;
1879: #show the translation on viewable targets
1880: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1881: # or non-viewable targets, if it's embedded in something that
1882: # wants the output
1883: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1884: && &Apache::lonxml::in_redirection() ) ) {
1885: my @possibilities = keys(%available_texts);
1886: my $which =
1887: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1888: if ($target eq 'tex') {
1889: $result = &select_hyphenation($which);
1890: }
1891: $result .= $available_texts{$which};
1892: if ($target eq 'tex') {
1893: $result .= &select_metadata_hyphenation(); # Restore original language.
1894: }
1.397 albertel 1895: }
1896: undef(%available_texts);
1897: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1898: return $result;
1899: }
1900:
1.500 foxr 1901: # <lang [which='language-name'] [other='lang1,lang2...']>
1902: # Specifies that the block contained within it is a translation
1903: # for a specific language specified by the 'which' attribute. The
1904: # 'other' attribute can be used by itself or in conjunction with
1905: # which to specify this tag _may_ be used as a translation for some
1906: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1907: # specifying that the block provides a translation for US (primary)
1908: # Canadian, Australian and UK Englush.
1909: #
1910: # Comment: this seems a bit silly why not just support a list of languages
1911: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1912: #
1913: # Effect:
1914: # The material within the <lang>..</lang> block is stored in the
1915: # specified set of $available_texts hash entries, the appropriate one
1916: # is selected at </translated> time.
1917: #
1918: # Pathalogical case handling:
1919: # If a language occurs multiple times within a <translated> block,
1920: # only the last one is rendered e.g.:
1921: #
1922: # <translated>
1923: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1924: # Red green color blindness is quite common affecting about 7.8% of
1925: # the male population, but onloy about .65% of the female population.
1926: # </lang>
1927: # Red green colour blindness is quite common affecting about 7.8% of
1928: # the male population, but onloy about .65% of the female population.
1929: # <lang which='seniso', other='senisoCA,senisoAU'>
1930: # </translated>
1931: #
1932: # renders the correct spelling of color (colour) for people who have specified
1933: # a preferred language that is one of the British Commonwealth languages
1934: # even though those are also listed as valid selections for the US english
1935: # <lang> block.
1936: #
1.397 albertel 1937: sub start_lang {
1938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1939: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1940: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1941: &Apache::lonxml::startredirection();
1942: }
1943: return '';
1944: }
1945:
1946: sub end_lang {
1947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1948: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1949: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1950: my $result = &Apache::lonxml::endredirection();
1951: my $which = &Apache::lonxml::get_param('which',$parstack,
1952: $safeeval);
1.431 raeburn 1953: if ($which=~/\w/) {
1954: $available_texts{$which} = $result;
1955: }
1956: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1957: $safeeval);
1958: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1959: if ($language=~/\w/) {
1960: $available_texts{$language} = $result;
1961: }
1.427 bisitz 1962: }
1963:
1.397 albertel 1964: }
1965: return '';
1966: }
1.500 foxr 1967: } # end langauge block specific tags.
1968:
1.397 albertel 1969:
1.170 www 1970: sub start_instructorcomment {
1.201 albertel 1971: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1972:
1973: my $result;
1974:
1.339 albertel 1975: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1976: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1977: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1978: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1979: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1980: $parser,$style);
1.170 www 1981: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1982: }
1983: $result='';
1984: } elsif ($target eq 'edit') {
1985: $result .=&Apache::edit::tag_start($target,$token);
1986: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1987: }
1988: return $result;
1989: }
1990:
1991: sub end_instructorcomment {
1.159 albertel 1992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1993: my $result;
1994: if ($target eq "edit") {
1995: $result.= &Apache::edit::tag_end($target,$token,'');
1996: }
1997: return $result;
1.4 tsai 1998: }
1999:
2000: sub start_while {
1.326 albertel 2001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2002:
1.160 albertel 2003: my $result;
1.339 albertel 2004: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2005: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2006: my $code = $token->[2]->{'condition'};
1.4 tsai 2007:
1.160 albertel 2008: push( @Apache::structuretags::whileconds, $code);
2009: if (!$Apache::lonxml::default_homework_loaded) {
2010: &Apache::lonxml::default_homework_load($safeeval);
2011: }
2012: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2013: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2014: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2015: push( @Apache::structuretags::whileline, $token->[5]);
2016: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2017: if ( $result ) {
2018: &Apache::lonxml::newparser($parser,\$bodytext);
2019: }
2020: } elsif ($target eq 'edit') {
2021: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2022: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2023: $token,40);
2024: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2025: } elsif ($target eq 'modified') {
2026: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2027: $safeeval,'condition');
2028: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2029: }
1.160 albertel 2030: return $result;
1.4 tsai 2031: }
2032:
2033: sub end_while {
1.159 albertel 2034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2035: my $result;
2036:
1.339 albertel 2037: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2038: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2039: my $code = pop(@Apache::structuretags::whileconds);
2040: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2041: my $line = pop(@Apache::structuretags::whileline);
2042: my $return = &Apache::run::run($code,$safeeval);
2043: my $starttime=time;
2044: my $error=0;
2045: while ($return) {
2046: if (time-$starttime >
2047: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2048: $return = 0; $error=1; next;
1.161 albertel 2049: }
2050: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2051: if ($target eq 'grade' || $target eq 'answer' ||
2052: $target eq 'analyze') {
2053: # grade/answer/analyze should produce no output but if we
2054: # are redirecting, the redirecter should know what to do
2055: # with the output
2056: if (!$Apache::lonxml::redirection) { undef($result); }
2057: }
1.161 albertel 2058: $return = &Apache::run::run($code,$safeeval);
2059: }
2060: if ($error) {
1.430 bisitz 2061: &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 2062: }
2063: } elsif ($target eq "edit") {
2064: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2065: }
1.160 albertel 2066: return $result;
1.1 albertel 2067: }
1.6 tsai 2068:
1.160 albertel 2069: # <randomlist show="1">
1.6 tsai 2070: # <tag1>..</tag1>
2071: # <tag2>..</tag2>
2072: # <tag3>..</tag3>
1.160 albertel 2073: # ...
1.6 tsai 2074: # </randomlist>
2075: sub start_randomlist {
1.326 albertel 2076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2077: my $result;
1.339 albertel 2078: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2079: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2080: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2081: my $b_parser= HTML::LCParser->new(\$body);
2082: $b_parser->xml_mode(1);
2083: $b_parser->marked_sections(1);
1.159 albertel 2084: my $b_tok;
2085: my @randomlist;
2086: my $list_item;
2087: while($b_tok = $b_parser->get_token() ) {
2088: if($b_tok->[0] eq 'S') { # start tag
2089: # get content of the tag until matching end tag
2090: # get all text upto the matching tag
2091: # and push the content into @randomlist
2092: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2093: $b_parser);
2094: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2095: push(@randomlist,$list_item);
2096: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2097: # $list_item</b>";
2098: }
2099: if($b_tok->[0] eq 'T') { # text
2100: # what to do with text in between tags?
2101: # print "<b>TEXT $b_tok->[1]</b><br />";
2102: }
2103: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2104: # print "<b>END-TAG $b_tok->[1]</b><br />";
2105: # }
2106: }
1.303 albertel 2107: if (@randomlist) {
2108: my @idx_arr = (0 .. $#randomlist);
2109: &Apache::structuretags::shuffle(\@idx_arr);
2110: my $bodytext = '';
2111: my $show=$#randomlist;
2112: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2113: $showarg--;
2114: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2115: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2116: my @currlist;
2117: my $part = $Apache::inputtags::part;
2118: if ($part ne '') {
2119: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2120: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2121: if (!(grep(/^\Q$part\E$/,@currlist))) {
2122: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2123: }
2124: } else {
2125: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2126: }
2127: }
2128: }
1.303 albertel 2129: for(0 .. $show) {
2130: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2131: }
2132: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2133: }
2134: } elsif ($target eq 'edit' ) {
2135: $result .=&Apache::edit::tag_start($target,$token);
2136: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2137: $token,5);
2138: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2139: } elsif ($target eq 'modified' ) {
2140: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2141: $safeeval,'show');
2142: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2143: }
2144: return $result;
1.7 tsai 2145: }
2146:
2147: sub shuffle {
2148: my $a=shift;
2149: my $i;
1.303 albertel 2150: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2151: &Apache::response::pushrandomnumber();
1.159 albertel 2152: for($i=@$a;--$i;) {
2153: my $j=int(&Math::Random::random_uniform() * ($i+1));
2154: next if $i == $j;
2155: @$a[$i,$j] = @$a[$j,$i];
2156: }
1.251 albertel 2157: &Apache::response::poprandomnumber();
1.7 tsai 2158: }
1.6 tsai 2159: }
2160:
2161: sub end_randomlist {
1.159 albertel 2162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2163: my $result;
2164: if ($target eq 'edit' ) {
2165: $result=&Apache::edit::tag_end($target,$token,
2166: 'End Randomly Parsed Block');
2167: }
2168: return $result;
1.6 tsai 2169: }
2170:
1.283 albertel 2171: sub ordered_show_check {
2172: my $last_part=$Apache::inputtags::partlist[-2];
2173: my $in_order=
2174: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2175: my $in_order_show=1;
2176: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2177: $in_order_show=&Apache::response::check_status($last_part);
2178: }
2179: return $in_order_show;
2180: }
2181:
1.469 www 2182:
2183: sub start_startpartmarker {
2184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2185: my $result='';
2186: if ($target eq 'edit') {
2187: $result=&Apache::edit::tag_start($target,$token);
2188: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2189: $result.=&Apache::edit::end_table();
2190:
2191: }
2192: return $result;
2193: }
2194:
2195: sub end_startpartmarker {
2196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2197: my @result;
2198: if ($target eq 'edit') { $result[1]='no'; }
2199: return @result;
2200: }
2201:
2202: sub start_endpartmarker {
2203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2204: my $result='';
2205: if ($target eq 'edit') {
2206: $result=&Apache::edit::tag_start($target,$token);
2207: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2208: $result.=&Apache::edit::end_table();
2209:
2210: }
2211: return $result;
2212: }
2213:
2214: sub end_endpartmarker {
2215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2216: my @result;
2217: if ($target eq 'edit') { $result[1]='no'; }
2218: return @result;
2219: }
2220:
2221:
2222:
2223:
2224:
1.11 albertel 2225: sub start_part {
1.326 albertel 2226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2227: if (!$Apache::lonxml::metamode) {
2228: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2229: # duedates.
2230: }
1.159 albertel 2231: my $result='';
1.386 albertel 2232: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2233: $Apache::inputtags::part=$id;
1.177 albertel 2234: push(@Apache::inputtags::partlist,$id);
2235: @Apache::inputtags::response=();
1.159 albertel 2236: @Apache::inputtags::previous=();
2237: @Apache::inputtags::previous_version=();
1.405 albertel 2238: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2239: &Apache::response::reset_params();
2240:
1.159 albertel 2241: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2242: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2243: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2244: my $in_order_show=&ordered_show_check();
1.214 albertel 2245: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2246: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2247: &Apache::run::run($expression,$safeeval);
1.159 albertel 2248:
2249: if ($target eq 'meta') {
1.224 www 2250: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2251: return &Apache::response::mandatory_part_meta.
2252: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2253: } elsif ($target eq 'web' || $target eq 'grade' ||
2254: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2255: if ($hidden || !$in_order_show) {
1.326 albertel 2256: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2257: } else {
2258: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2259: push (@Apache::inputtags::status,$status);
2260: my $expression='$external::datestatus="'.$status.'";';
2261: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2262: &Apache::run::run($expression,$safeeval);
1.284 albertel 2263: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2264: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2265: }
1.216 albertel 2266: if (( $status eq 'CLOSED' ) ||
2267: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2268: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2269: ( $status eq 'BANNED') ||
2270: ( $status eq 'UNAVAILABLE') ||
2271: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2272: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2273: $style);
1.159 albertel 2274: if ( $target eq "web" ) {
1.211 albertel 2275: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2276: } elsif ( $target eq 'tex' ) {
1.284 albertel 2277: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2278: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2279: } else {
1.211 albertel 2280: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2281: }
1.159 albertel 2282: }
2283: } else {
2284: if ($target eq 'tex') {
1.284 albertel 2285: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2286: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2287: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2288: } else {
2289: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2290: }
1.195 sakharuk 2291: }
1.159 albertel 2292: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2293: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2294: my @allkeys = split /,/,$allkeys;
2295: my $allow_print_points = 0;
2296: foreach my $partial_key (@allkeys) {
1.230 albertel 2297: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2298: if ($1 ne '0') {$allow_print_points=1;}
2299: }
2300: }
1.275 albertel 2301: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2302: if (defined($maxtries) && $maxtries < 0) {
2303: $allow_print_points=0;
2304: }
1.302 albertel 2305: if (lc($env{'course.'.$env{'request.course.id'}.
2306: '.disableexampointprint'}) eq 'yes') {
2307: $allow_print_points=0;
2308: }
1.463 foxr 2309: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2310: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2311:
2312: }
1.233 www 2313: } elsif ($target eq 'web') {
1.479 raeburn 2314: if ($status eq 'CAN_ANSWER') {
2315: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2316: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2317: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2318: my $num = scalar(@Apache::inputtags::partlist)-1;
2319: if ($probrandomize eq 'randomizetry') {
2320: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2321: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2322: } else {
2323: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2324: if ($probrandtries ne $reqtries) {
2325: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2326: }
2327: }
2328: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2329: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2330: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2331: }
2332: }
1.475 raeburn 2333: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2334: }
2335: }
2336: }
2337: } elsif ($target eq 'edit') {
2338: $result.=&Apache::edit::tag_start($target,$token);
2339: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2340: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2341: ' '.
2342: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2343: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2344: } elsif ($target eq 'modified') {
2345: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2346: $safeeval,'id','display');
1.159 albertel 2347: if ($constructtag) {
1.225 albertel 2348: #limiting ids to only letters numbers, and space
1.224 www 2349: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2350: $result = &Apache::edit::rebuild_tag($token);
2351: }
2352: }
2353: return $result;
1.11 albertel 2354: }
2355:
2356: sub end_part {
1.159 albertel 2357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2358: &Apache::lonxml::debug("in end_part $target ");
2359: my $status=$Apache::inputtags::status['-1'];
2360: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2361: my $in_order_show=&ordered_show_check();
1.321 albertel 2362: my $result;
2363: if (!$Apache::lonxml::metamode) {
2364: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2365: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2366: }
1.312 albertel 2367: if ($target eq 'grade') {
1.249 albertel 2368: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2369: !$hidden && $in_order_show) {
1.311 foxr 2370: $result.=&Apache::inputtags::grade;
1.249 albertel 2371: } else {
2372: # move any submission data to .hidden
2373: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2374: }
1.283 albertel 2375: } elsif (($target eq 'web' || $target eq 'tex') &&
2376: !$hidden && $in_order_show) {
1.159 albertel 2377: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2378: $target);
1.490 raeburn 2379: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2380: ($env{'form.grade_imsexport'})) {
1.212 albertel 2381: $gradestatus='';
2382: }
1.311 foxr 2383: $result.=$gradestatus;
1.265 sakharuk 2384: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2385: } elsif ($target eq 'edit') {
1.311 foxr 2386: $result.=&Apache::edit::end_table();
1.322 albertel 2387: } elsif ($target eq 'modified') {
2388: $result .= $token->[2];
1.159 albertel 2389: }
2390: pop @Apache::inputtags::status;
2391: $Apache::inputtags::part='';
1.295 albertel 2392: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2393: return $result;
1.11 albertel 2394: }
1.1 albertel 2395:
1.25 albertel 2396: sub start_preduedate {
1.326 albertel 2397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2398: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2399: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2400: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2401: if (!$Apache::lonhomework::scantronmode &&
2402: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2403: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2404: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2405: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2406: }
1.24 albertel 2407: }
1.159 albertel 2408: return '';
1.24 albertel 2409: }
2410:
1.25 albertel 2411: sub end_preduedate {
1.159 albertel 2412: return '';
1.24 albertel 2413: }
2414:
1.369 foxr 2415: # In all the modes where <postanswerdate> text is
2416: # displayable, all we do is eat up the text between the start/stop
2417: # tags if the conditions are not right to display it.
1.25 albertel 2418: sub start_postanswerdate {
1.326 albertel 2419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2420: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2421: &Apache::lonnet::allowed('pav',
2422: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2423: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2424: $target eq 'tex' ) {
1.300 albertel 2425: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2426: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2427: (($target eq 'tex') && !$pav)) {
1.326 albertel 2428: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2429: }
2430: }
2431: return '';
1.24 albertel 2432: }
2433:
1.25 albertel 2434: sub end_postanswerdate {
1.159 albertel 2435: return '';
1.24 albertel 2436: }
2437:
1.25 albertel 2438: sub start_notsolved {
1.326 albertel 2439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2440: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2441: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2442: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2443: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2444: if ($gradestatus =~ /^correct/ &&
2445: &Apache::response::show_answer()) {
1.159 albertel 2446: &Apache::lonxml::debug("skipping");
1.326 albertel 2447: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2448: }
1.24 albertel 2449: }
1.159 albertel 2450: return '';
1.24 albertel 2451: }
2452:
1.25 albertel 2453: sub end_notsolved {
1.159 albertel 2454: return '';
1.24 albertel 2455: }
2456:
2457: sub start_solved {
1.326 albertel 2458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2459: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2460: $target eq 'tex') {
2461: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2462: if ($gradestatus !~ /^correct/ ||
2463: !&Apache::response::show_answer()) {
1.326 albertel 2464: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2465: }
1.24 albertel 2466: }
1.159 albertel 2467: return '';
1.24 albertel 2468: }
2469:
2470: sub end_solved {
1.248 albertel 2471: return '';
2472: }
2473:
2474: sub start_problemtype {
1.326 albertel 2475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2476: my $result;
1.339 albertel 2477: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2478: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2479: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2480: if (!defined($mode)) { $mode='show'; }
2481: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2482: my $found=0;
2483: foreach my $type (split(',',$for)) {
2484: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2485: }
2486: if ($mode eq 'show' && !$found) {
1.326 albertel 2487: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2488: }
2489: if ($mode eq 'hide' && $found) {
1.326 albertel 2490: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2491: }
2492: } elsif ($target eq 'edit') {
2493: $result .=&Apache::edit::tag_start($target,$token);
2494: $result.=&Apache::edit::select_arg('Mode:','mode',
2495: [['show','Show'],
2496: ['hide','Hide']]
2497: ,$token);
2498: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2499: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2500: ['survey','Survey'],
1.465 raeburn 2501: ['surveycred','Survey (with credit)'],
2502: ['anonsurvey','Anonymous Survey'],
2503: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2504: ['problem','Homework Problem'],
1.479 raeburn 2505: ['practice','Practice Problem'],
2506: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2507: ,$token);
2508: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2509: } elsif ($target eq 'modified') {
2510: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2511: $safeeval,'mode','for');
2512: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2513: }
2514: return $result;
2515: }
2516:
2517: sub end_problemtype {
1.159 albertel 2518: return '';
1.24 albertel 2519: }
1.34 albertel 2520:
2521: sub start_startouttext {
1.159 albertel 2522: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2523: my @result=(''.'');
2524: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2525:
2526: my $nesting =
2527: &Apache::lonxml::set_state('outtext',
2528: &Apache::lonxml::get_state('outtext')+1);
2529: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2530: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2531: }
1.159 albertel 2532: return (@result);
1.34 albertel 2533: }
1.159 albertel 2534:
1.34 albertel 2535: sub end_startouttext {
1.326 albertel 2536: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2537: my $result='';
2538: my $text='';
2539: if ($target eq 'edit') {
1.424 foxr 2540: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2541: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2542: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2543: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2544: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2545: .'</span></td>'
1.512 bisitz 2546: .'<td align="left"><span id="math_'.$areaid.'">'
1.474 raeburn 2547: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2548: .'</span></td>'
1.474 raeburn 2549: .'<td>'
2550: .&Apache::edit::insertlist($target,$token)
2551: .'</td>'
2552: .'<td align="right" valign="top">' .
2553: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2554: &Apache::edit::end_row().
1.362 albertel 2555: &Apache::edit::start_spanning_row()."\n".
1.255 www 2556: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2557: }
2558: if ($target eq 'modified') {
1.219 albertel 2559: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2560: }
2561: if ($target eq 'tex') {
2562: $result .= '\noindent ';
2563: }
2564: return $result;
1.34 albertel 2565: }
1.159 albertel 2566:
1.34 albertel 2567: sub start_endouttext {
1.159 albertel 2568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2569: my $result='';
2570: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2571: if ($target eq "modified") {
2572: $result='<endouttext />'.
1.377 albertel 2573: &Apache::edit::handle_insertafter('startouttext');
2574: }
1.404 albertel 2575:
2576: my $nesting =
2577: &Apache::lonxml::set_state('outtext',
2578: &Apache::lonxml::get_state('outtext')-1);
2579: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2580: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2581: &Apache::lonxml::set_state('outtext', 0);
2582: }
1.159 albertel 2583: return $result;
1.34 albertel 2584: }
1.159 albertel 2585:
1.34 albertel 2586: sub end_endouttext {
1.159 albertel 2587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2588: my @result=('','');
2589: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2590: return (@result);
1.34 albertel 2591: }
1.159 albertel 2592:
1.45 albertel 2593: sub delete_startouttext {
1.326 albertel 2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2595: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2596: my $text=$$parser['-1']->get_text("/endouttext");
2597: my $ntoken=$$parser['-1']->get_token();
2598: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2599: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2600: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2601: # they did the last time round
2602: &Apache::lonxml::increasedepth($ntoken);
2603: &Apache::lonxml::decreasedepth($ntoken);
2604: return 1;
1.193 www 2605: }
2606:
2607: sub start_simpleeditbutton {
2608: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2609: my $result='';
1.284 albertel 2610: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2611: ($target eq 'web') &&
1.330 albertel 2612: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2613: my $url=$env{'request.noversionuri'};
1.193 www 2614: $url=~s/\?.*$//;
1.367 albertel 2615: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2616: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2617: # $result='<p class="LC_warning">'
2618: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2619: # .&Apache::loncommon::help_open_topic('Caching')
2620: # .'</p>';
1.486 www 2621: $result.=&Apache::loncommon::head_subbox(
2622: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2623: .&Apache::lonhtmlcommon::add_item_funclist(
2624: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2625: .&mt('Edit').'</a>')
1.486 www 2626: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2627:
1.193 www 2628: }
2629: return $result;
2630: }
2631:
2632: sub end_simpleeditbutton {
2633: return '';
1.45 albertel 2634: }
1.34 albertel 2635:
1.428 raeburn 2636: sub practice_problem_header {
2637: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2638: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2639: '</span>';
2640: }
2641:
1.479 raeburn 2642: sub randomizetry_problem_header {
2643: my ($problemstatus,$reqtries) = @_;
2644: my ($header,$text);
2645: if ($reqtries > 1) {
2646: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2647: if (($problemstatus eq 'no') ||
2648: ($problemstatus eq 'no_feedback_ever')) {
2649: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2650: } else {
2651: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2652: }
2653: } else {
2654: $header = &mt('New Problem Variation Each Try');
2655: if (($problemstatus eq 'no') ||
2656: ($problemstatus eq 'no_feedback_ever')) {
2657: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2658:
2659: } else {
2660: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2661: }
2662: }
2663: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2664: '<span class="LC_info">'.$text.'</span><hr />';
2665: }
2666:
2667: sub randomizetry_part_header {
2668: my ($problemstatus,$reqtries,$num) = @_;
2669: my ($header,$text);
2670: if ($reqtries eq 'none') {
2671: $header = &mt('No Question Variation');
2672: $text = &mt('For this question there will no new variation after a try.');
2673: } elsif ($reqtries > 1) {
2674: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2675: if (($problemstatus eq 'no') ||
2676: ($problemstatus eq 'no_feedback_ever')) {
2677: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2678: } else {
2679: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2680: }
2681: } else {
2682: $header = &mt('New Question Variation For Each Try');
2683: if (($problemstatus eq 'no') ||
2684: ($problemstatus eq 'no_feedback_ever')) {
2685: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2686: } else {
2687: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2688: }
2689: }
2690: my $output;
2691: if ($num > 1) {
2692: $output .= '<hr />';
2693: }
2694: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2695: '<span class="LC_info">'.$text.'</span><br /><br />';
2696: return $output;
2697: }
2698:
1.1 albertel 2699: 1;
2700: __END__
1.435 jms 2701:
2702: =pod
2703:
2704: =back
2705:
2706: =cut
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