Annotation of loncom/homework/structuretags.pm, revision 1.519
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.519 ! raeburn 4: # $Id: structuretags.pm,v 1.518 2014/05/15 20:17:17 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' || $target eq 'edit') {
1.513 raeburn 382: # Breadcrumbs for Authoring Space
1.450 bisitz 383: &Apache::lonhtmlcommon::clear_breadcrumbs();
384: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 385: 'text' => 'Authoring Space',
1.497 raeburn 386: 'href' => &Apache::loncommon::authorspace($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: $body_args{'only_body'} = 1;
1.518 raeburn 417: } elsif ($target eq 'web') {
418: $body_args{'print_suppress'} = 1;
1.446 bisitz 419: }
1.344 albertel 420: }
1.365 albertel 421: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 422: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
423: \%body_args);
1.446 bisitz 424: $page_start .= $pageheader;
1.462 raeburn 425: if (!defined($found{'body'})
426: && $env{'request.state'} ne 'construct'
427: && ($target eq 'web' || $target eq 'webgrade')) {
428:
429: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
430: if ($symb eq '' && !$publicuser) {
431: $page_start .= '<p class="LC_info">'
432: .&mt('Browsing resource, all submissions are temporary.')
433: .'</p>';
1.457 bisitz 434: }
1.344 albertel 435: }
436:
1.409 albertel 437: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 438: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 439: }
440: my $form_tag_start;
441: if (!defined($found{'form'})) {
1.337 albertel 442: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 443: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 444: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 445: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 446: $form_tag_start.=$uri.'" ';
447: if ($target eq 'edit') {
448: $form_tag_start.=&Apache::edit::form_change_detection();
449: }
1.493 raeburn 450: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
451: my ($path,$multiresp) =
452: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 453: if (($is_task) || ($needs_upload)) {
454: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 455: }
1.368 albertel 456: $form_tag_start.='>'."\n";
1.355 albertel 457:
458: if ($symb =~ /\S/) {
459: $symb=
460: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
461: $form_tag_start.=
1.368 albertel 462: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 463: }
1.159 albertel 464: }
1.343 albertel 465: return ($page_start,$form_tag_start);
1.105 albertel 466: }
467:
1.141 matthew 468: #use Time::HiRes();
1.105 albertel 469: sub get_resource_name {
1.159 albertel 470: my ($parstack,$safeeval)=@_;
1.388 foxr 471: my $name;
1.204 albertel 472: if (defined($Apache::lonhomework::name)) {
1.388 foxr 473: $name = $Apache::lonhomework::name;
474: } else {
475: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 476: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 477: if ($name eq '') {
478: $name=&Apache::lonnet::EXT('resource.title');
479: if ($name eq 'con_lost') { $name = ''; }
480: }
481: if ($name!~/\S+/) {
482: $name=$env{'request.uri'};
483: $name=~s-.*/([^/]+)$-$1-;
484: }
485: # The name has had html tags escaped:
486:
487: $name=~s/</</gs;
488: $name=~s/>/>/gs;
489:
490: $Apache::lonhomework::name=$name;
1.204 albertel 491: }
1.159 albertel 492: return $name;
1.105 albertel 493: }
494:
495: sub setup_rndseed {
1.479 raeburn 496: my ($safeeval,$target)=@_;
1.367 albertel 497: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 498: my ($questiontype,$set_safespace,$rndseed);
499: if ($target eq 'analyze') {
500: $questiontype = $env{'form.grade_questiontype'};
501: }
502: unless (defined($questiontype)) {
503: $questiontype = $Apache::lonhomework::type;
504: }
1.333 albertel 505: if ($env{'request.state'} eq "construct"
506: || $symb eq ''
507: || $Apache::lonhomework::type eq 'practice'
508: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 509: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 510: ['rndseed']);
1.284 albertel 511: $rndseed=$env{'form.rndseed'};
1.159 albertel 512: if (!$rndseed) {
1.162 albertel 513: $rndseed=$Apache::lonhomework::history{'rndseed'};
514: if (!$rndseed) {
515: $rndseed=time;
516: }
1.284 albertel 517: $env{'form.rndseed'}=$rndseed;
1.162 albertel 518: }
1.479 raeburn 519: if (($env{'request.state'} eq "construct") &&
520: ($Apache::lonhomework::type eq 'randomizetry')) {
521: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
522: if ($tries) {
523: $rndseed += $tries;
524: }
1.480 raeburn 525: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 526: }
1.374 albertel 527: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
528: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 529: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 530: srand(time);
531: $rndseed=int(rand(2100000000));
1.284 albertel 532: $env{'form.rndseed'}=$rndseed;
533: delete($env{'form.resetdata'});
534: delete($env{'form.newrandomization'});
1.159 albertel 535: }
1.488 www 536: $rndseed=~s/\,/\:/g;
537: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 538: if (defined($rndseed)) {
539: my ($c1,$c2)=split(/\:/,$rndseed);
540: unless ($c2) { $c2=0; }
541: unless (($c1==int($c1)) && ($c2==int($c2))) {
542: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
543: }
1.187 albertel 544: }
1.247 albertel 545: if ($Apache::lonhomework::history{'resource.CODE'}) {
546: $rndseed=&Apache::lonnet::rndseed();
547: }
1.479 raeburn 548: $set_safespace = 1;
549: } elsif ($questiontype eq 'randomizetry') {
550: if ($target eq 'analyze') {
551: if (defined($env{'form.grade_rndseed'})) {
552: $rndseed = $env{'form.grade_rndseed'};
553: }
554: }
555: unless (($target eq 'analyze') && (defined($rndseed))) {
556: $rndseed=&Apache::lonnet::rndseed();
557: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
558: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
559: $curr_try ++;
560: }
561: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
562: $rndseed = $1;
563: }
564: if ($curr_try) {
565: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
566: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
567: my $inc = int(($curr_try-1)/$reqtries);
568: $rndseed += $inc;
569: } else {
570: $rndseed += $curr_try;
571: }
572: }
573: }
574: $set_safespace = 1;
575: }
576: if ($set_safespace) {
577: if ($safeeval) {
578: &Apache::lonxml::debug("Setting rndseed to $rndseed");
579: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
580: }
581: }
582: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
583: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 584: }
585: return $rndseed;
1.105 albertel 586: }
587:
1.268 albertel 588: sub remember_problem_state {
589: return '
1.284 albertel 590: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
591: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
592: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 593: }
594:
1.487 www 595: sub problem_edit_action_button {
596: my ($name,$action,$accesskey,$text,$flag)=@_;
597: my $actionscript="setmode(this.form,'$action')";
598: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
599: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
600: }
601:
1.423 www 602: sub problem_edit_buttons {
1.487 www 603: my ($mode)=@_;
604: # Buttons that do not save
605: my $result='<div class="LC_edit_problem_discards">'.
606: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
607: if ($mode eq 'editxml') {
608: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
609: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
610: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
611: } else {
612: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
613: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
614: }
615: $result.="\n</div>";
616: # Buttons that save
617: $result.='<div class="LC_edit_problem_saves">';
618: if ($mode eq 'editxml') {
619: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
620: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
621: } else {
622: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
623: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
624: }
625: $result.="\n</div>\n";
626: return $result;
1.423 www 627: }
628:
629: sub problem_edit_header {
1.487 www 630: return '<input type="hidden" name="submitted" value="edit" />'.
631: &remember_problem_state('edit').'
1.423 www 632: <div class="LC_edit_problem_header">
633: <div class="LC_edit_problem_header_title">
634: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
635: </div>'.
1.487 www 636: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 637: &problem_edit_buttons().'
1.459 bisitz 638: <hr style="clear:both;" />
1.409 albertel 639: '.&Apache::lonxml::message_location().'
1.408 albertel 640: </div>
641: '.
1.515 golterma 642: '<table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 643: }
644:
645: sub problem_edit_footer {
1.412 albertel 646: return '</td></tr></table><br />
647: <div class="LC_edit_problem_footer">
1.453 bisitz 648: <hr />'.
1.423 www 649: &problem_edit_buttons().'
1.459 bisitz 650: <hr style="clear:both;" />
1.412 albertel 651: </div>
652: '.
1.342 albertel 653: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 654: }
655:
1.235 albertel 656: sub option {
657: my ($value,$name) = @_;
658: my $result ="<option value='".$value."' ";
1.284 albertel 659: if ($env{'form.'.$name} eq $value) {
1.235 albertel 660: $result.=" selected='on' ";
661: }
662: $result.='>';
663: return $result;
664: }
665:
1.105 albertel 666: sub problem_web_to_edit_header {
1.159 albertel 667: my ($rndseed)=@_;
1.406 albertel 668: my $result .= '<div class="LC_edit_problem_header">';
669:
670: if (!$Apache::lonhomework::parsing_a_task) {
671: $result .=
672: '<div class="LC_edit_problem_header_title">'.
673: &mt('Problem Testing').
674: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
675: '</div>';
676: } else {
677: $result .=
678: '<div class="LC_edit_problem_header_title">'.
679: &mt('Task Testing').
680: '</div>';
681: }
682:
1.315 albertel 683: my $show_all_foils_text =
684: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 685: &mt('Show All Instances')
686: : &mt('Show All Foils');
1.315 albertel 687:
1.452 bisitz 688: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
689: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 690: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 691: $show_all.= ' /> '.$show_all_foils_text
692: .'</label></span>';
1.406 albertel 693:
694:
1.384 albertel 695:
1.406 albertel 696: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 697: if (!$Apache::lonhomework::parsing_a_task) {
698: $result.="
1.406 albertel 699: <div class='LC_edit_problem_header_row1'>
700: <span class=\"LC_nobreak\">
1.405 albertel 701: ".&mt("Problem Status:")."
1.235 albertel 702: <select name='problemstate'>
1.270 albertel 703: <option value=''></option>
1.235 albertel 704: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
705: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
706: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
707: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
708: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
709: </select>
1.406 albertel 710: </span>
711: <span class=\"LC_nobreak\">
1.405 albertel 712: ".&mt("Problem Type:")."
1.235 albertel 713: <select name='problemtype'>
1.270 albertel 714: <option value=''></option>
1.509 bisitz 715: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 716: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 717: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 718: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
719: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
720: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 721: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 722: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 723: </select>
1.406 albertel 724: </span>
725: $show_all
726: </div>
727: <div class='LC_edit_problem_header_row2'>
728: <span class=\"LC_nobreak\">
1.405 albertel 729: ".&mt("Feedback Mode:")."
1.235 albertel 730: <select name='problemstatus'>
731: <option value=''></option>
1.242 albertel 732: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 733: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 734: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 735: </select>
1.406 albertel 736: </span>
737: ";
738:
1.376 albertel 739: } elsif ($Apache::lonhomework::parsing_a_task) {
740: $result.="
1.406 albertel 741: <div class='LC_edit_problem_header_row1'>
742: <span class=\"LC_nobreak\">
1.405 albertel 743: ".&mt("Problem Status:")."
1.376 albertel 744: <select name='problemstate'>
745: <option value=''></option>
746: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
747: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
748: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
749: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
750: </select>
1.406 albertel 751: </span>
752: $show_all
753: ";
754: }
755: $result.='
756: <span class="LC_nobreak">
757: '.&mt('Apply style file: ').'
758: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
759: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
760: </span>
1.422 www 761: </div>
762: <div class="LC_edit_problem_header_row1">'.
763: &Apache::lonxml::renderingoptions().'
1.406 albertel 764: </div>
765: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
766: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
767: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
768: </div>
1.453 bisitz 769: <hr />
1.406 albertel 770: <div class="LC_edit_problem_header_randomize_row">
771: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
772: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 773: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 774: $rndseed.'"
775: onchange="javascript:document.lonhomework.changerandseed.click()" />';
776:
777: if (!$Apache::lonhomework::parsing_a_task) {
778: my $numtoanalyze=$env{'form.numtoanalyze'};
779: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 780: $result .= '<span class="LC_nobreak">'.
781: &mt('[_1] for [_2] versions.',
1.416 raeburn 782: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 783: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
784: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 785: $numtoanalyze.'" size="5" />').
786: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
787: '</span>';
788:
1.313 albertel 789: }
1.406 albertel 790:
791: $result.='
792: </div>
1.453 bisitz 793: <hr />
1.447 bisitz 794: <div>';
1.416 raeburn 795: $result.='<input type="hidden" name="problemmode" value="view" />';
796: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
797: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
798: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
799: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 800: $result.='
801: </div>
1.453 bisitz 802: <hr />
1.409 albertel 803: '.&Apache::lonxml::message_location().'
1.406 albertel 804: </div>';
1.159 albertel 805: return $result;
1.48 albertel 806: }
807:
1.65 albertel 808: sub initialize_storage {
1.357 albertel 809: my ($given_symb) = @_;
1.353 albertel 810: undef(%Apache::lonhomework::results);
811: undef(%Apache::lonhomework::history);
1.357 albertel 812: my ($symb,$courseid,$domain,$name) =
1.367 albertel 813: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 814:
815: # anonymous users (CODEd exams) have no data
816: if ($name eq 'anonymous'
817: && !defined($domain)) {
818: return;
819: }
820:
1.333 albertel 821: if ($env{'request.state'} eq 'construct'
822: || $symb eq ''
823: || $Apache::lonhomework::type eq 'practice') {
824:
825: my $namespace = $symb || $env{'request.uri'};
826: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 827: ($env{'form.resetdata'} eq &mt('New Problem Variation')
828: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 829: $env{'form.newrandomization'} eq &mt('New Randomization')) {
830: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
831: &Apache::lonxml::debug("Attempt reset");
832: }
1.159 albertel 833: %Apache::lonhomework::history=
1.333 albertel 834: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 835: my ($temp)=keys %Apache::lonhomework::history ;
836: &Apache::lonxml::debug("Return message of $temp");
837: } else {
838: %Apache::lonhomework::history=
839: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
840: }
1.353 albertel 841:
1.159 albertel 842: #ignore error conditions
1.67 albertel 843: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 844: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 845: }
846:
1.435 jms 847: =pod
848:
849: =item finalize_storage()
850:
851: Stores away the result has to a student's environment
852: checks form.grade_ for specific values, other wises stores
853: to the running users environment
854: Will increment totals for attempts, students, and corrects
855: if running user has student role.
856:
857: =cut
858:
859:
1.65 albertel 860: sub finalize_storage {
1.357 albertel 861: my ($given_symb) = @_;
1.159 albertel 862: my $result;
1.289 albertel 863: if (%Apache::lonhomework::results) {
1.323 albertel 864: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
865: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 866: my ($symb,$courseid,$domain,$name) =
1.367 albertel 867: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 868: if ($env{'request.state'} eq 'construct'
869: || $symb eq ''
870: || $Apache::lonhomework::type eq 'practice') {
871: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 872: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 873: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 874: $namespace,'',$domain,$name);
1.159 albertel 875: &Apache::lonxml::debug('Construct Store return message:'.$result);
876: } else {
877: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
878: $symb,$courseid,$domain,$name);
879: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 880: &store_aggregates($symb,$courseid);
1.159 albertel 881: }
1.323 albertel 882: } else {
883: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 884: }
1.159 albertel 885: return $result;
1.65 albertel 886: }
887:
1.435 jms 888: =pod
889:
890: item store_aggregates()
891:
892: Sends hash of values to be incremented in nohist_resourcetracker.db
893: for the course. Increments total number of attempts, unique students
894: and corrects for each part for an instance of a problem, as appropriate.
895:
896: =cut
897:
1.285 raeburn 898: sub store_aggregates {
899: my ($symb,$courseid) = @_;
1.479 raeburn 900: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 901: my @parts;
1.288 albertel 902: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
903: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 904: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 905: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 906: push(@parts, $1);
1.285 raeburn 907: }
908: }
1.286 albertel 909: foreach my $part (@parts) {
1.470 raeburn 910: if ($env{'request.role'} =~/^st/) {
911: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
912: eq 'APPROX_ANS' ||
913: $Apache::lonhomework::results{'resource.'.$part.'.award'}
914: eq 'EXACT_ANS') {
915: $aggregate{$symb."\0".$part."\0correct"} = 1;
916: }
917: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
918: $aggregate{$symb."\0".$part."\0users"} = 1;
919: } else {
920: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
921: if ($last_reset) {
922: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
923: $aggregate{$symb."\0".$part."\0users"} = 1;
924: }
925: }
926: }
927: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 928: }
1.470 raeburn 929: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 930: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
931: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
932: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
933: $randtrycounter{$symb."\0".$part} = 1;
934: } else {
935: $anoncounter{$symb."\0".$part} = 1;
936: }
1.470 raeburn 937: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
938: if ($needsrelease) {
939: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
940: if ($curr_required eq '') {
1.471 raeburn 941: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 942: } else {
943: my ($currmajor,$currminor) = split(/\./,$curr_required);
944: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
945: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 946: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 947: }
1.292 raeburn 948: }
949: }
1.285 raeburn 950: }
951: }
1.292 raeburn 952: if (keys (%aggregate) > 0) {
1.289 albertel 953: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 954: $cdomain,$cname);
955: }
1.472 raeburn 956: if (keys(%anoncounter) > 0) {
1.481 raeburn 957: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
958: $cdomain,$cname);
1.472 raeburn 959: }
1.479 raeburn 960: if (keys(%randtrycounter) > 0) {
1.481 raeburn 961: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
962: $cdomain,$cname);
1.479 raeburn 963: }
1.292 raeburn 964: }
1.289 albertel 965:
1.65 albertel 966: sub checkout_msg {
1.211 albertel 967: my %lt=&Apache::lonlocal::texthash(
968: 'resource'=>'The resource needs to be checked out',
969: '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.',
970: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 971: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
972: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 973: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 974: return (<<ENDCHECKOUT);
1.211 albertel 975: <h2>$lt{'resource'}</h2>
976: <p>$lt{'id_expln'}</p>
1.449 bisitz 977: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 978: <form name="checkout" method="post" action="$uri">
1.91 albertel 979: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 980: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 981: </form>
982: ENDCHECKOUT
983: }
984:
1.252 albertel 985: sub firstaccess_msg {
1.253 albertel 986: my ($time,$symb)=@_;
1.414 albertel 987: my $result;
988: my @interval=&Apache::lonnet::EXT("resource.0.interval");
989: if ($interval[1] eq 'map') {
990: my ($map)=&Apache::lonnet::decode_symb($symb);
991: my $foldertitle=&Apache::lonnet::gettitle($map);
992:
993: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 994: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
995: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
996: ,$foldertitle,$time)."</p>";
1.414 albertel 997: } elsif ($interval[1] eq 'course') {
998: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 999: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1000: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1001: ,$course,$time)."</p>";
1.414 albertel 1002: } else {
1003: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1004: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1005: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1006: ,$title,$time)."</p>";
1.414 albertel 1007: }
1.352 albertel 1008: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1009: my $buttontext = &mt('Show Resource');
1010: my $timertext = &mt('Start Timer?');
1.414 albertel 1011: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1012: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1013: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1014: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1015: </form>
1016: ENDCHECKOUT
1.414 albertel 1017: return $result;
1.252 albertel 1018: }
1019:
1.204 albertel 1020: sub init_problem_globals {
1021: my ($type)=@_;
1022: #initialize globals
1.308 foxr 1023: # For problems, we start out in part 0 (outside a <part> tag).
1024: # and part 0 is used to describe the main body of the <problem>
1025: #
1.204 albertel 1026: if ($type eq 'problem') {
1027: $Apache::inputtags::part='0';
1028: @Apache::inputtags::partlist=('0');
1.405 albertel 1029: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1030: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1031:
1.266 albertel 1032: } elsif ($type eq 'library') {
1.204 albertel 1033: $Apache::inputtags::part='';
1034: @Apache::inputtags::partlist=();
1.405 albertel 1035: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1036: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1037:
1.304 albertel 1038: } elsif ($type eq 'Task') {
1039: $Apache::inputtags::part='0';
1040: @Apache::inputtags::partlist=('0');
1.405 albertel 1041: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1042: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1043: }
1.477 www 1044: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1045: @Apache::inputtags::responselist = ();
1046: @Apache::inputtags::importlist = ();
1047: @Apache::inputtags::previous=();
1048: @Apache::inputtags::previous_version=();
1049: $Apache::structuretags::printanswer='No';
1050: @Apache::structuretags::whileconds=();
1051: @Apache::structuretags::whilebody=();
1052: @Apache::structuretags::whileline=();
1053: $Apache::lonhomework::scantronmode=0;
1054: undef($Apache::lonhomework::name);
1.358 albertel 1055: undef($Apache::lonhomework::default_type);
1056: undef($Apache::lonhomework::type);
1.204 albertel 1057: }
1058:
1059: sub reset_problem_globals {
1060: my ($type)=@_;
1061: undef(%Apache::lonhomework::history);
1062: undef(%Apache::lonhomework::results);
1063: undef($Apache::inputtags::part);
1.498 raeburn 1064: if ($type eq 'Task') {
1065: undef($Apache::inputtags::slot_name);
1066: }
1.208 albertel 1067: #don't undef this, lonhomework.pm takes care of this, we use this to
1068: #detect if we try to do 2 problems in one file
1069: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1070: undef($Apache::lonhomework::name);
1.358 albertel 1071: undef($Apache::lonhomework::default_type);
1072: undef($Apache::lonhomework::type);
1073: undef($Apache::lonhomework::scantronmode);
1074: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1075: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1076: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1077: }
1078:
1.241 albertel 1079: sub set_problem_state {
1.240 albertel 1080: my ($part)=@_;
1.284 albertel 1081: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1082: $Apache::lonhomework::history{"resource.$part.solved"}=
1083: 'correct_by_student';
1084: }
1085: }
1086:
1.241 albertel 1087: sub get_problem_status {
1088: my ($part)=@_;
1.267 albertel 1089: my $problem_status;
1.284 albertel 1090: if ($env{'request.state'} eq 'construct' &&
1091: defined($env{'form.problemstatus'})) {
1092: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1093: } else {
1094: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1095: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1096: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1097: }
1098: return $problem_status;
1099: }
1100:
1.9 albertel 1101: sub start_problem {
1.326 albertel 1102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1103:
1.311 foxr 1104: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1105: if (!$Apache::lonxml::metamode) {
1106: &Apache::lonxml::startredirection();
1107: }
1.311 foxr 1108:
1.308 foxr 1109: # Problems don't nest and we don't allow more than one <problem> in
1110: # a .problem file.
1111: #
1.184 albertel 1112: if ( $Apache::inputtags::part ne '' ||
1113: $Apache::lonhomework::parsing_a_problem) {
1114: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1115: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1116: return '';
1117: }
1.184 albertel 1118:
1119: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1120: &init_problem_globals('problem');
1.166 albertel 1121:
1.284 albertel 1122: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1123: $Apache::lonhomework::scantronmode=1;
1124: }
1.161 albertel 1125:
1.159 albertel 1126: if ($target ne 'analyze') {
1.415 raeburn 1127: my $type = &Apache::lonnet::EXT('resource.0.type');
1128: $Apache::lonhomework::type=$type;
1.284 albertel 1129: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1130: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1131: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1132: }
1.332 albertel 1133: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1134: }
1.164 albertel 1135: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1136: my $uri=$env{'request.uri'};
1.159 albertel 1137: if ($uri=~/\.(\w+)$/) {
1138: $Apache::lonhomework::type=$1;
1139: &Apache::lonxml::debug("Using type of $1");
1140: } else {
1141: $Apache::lonhomework::type='problem';
1142: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1143: }
1.87 albertel 1144: }
1.301 albertel 1145: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1146:
1.363 albertel 1147: &initialize_storage();
1.389 albertel 1148: if ($target ne 'analyze'
1149: && $env{'request.state'} eq 'construct') {
1150: &set_problem_state('0');
1151: }
1152:
1.366 albertel 1153: if ($target eq 'web') {
1154: &Apache::lonxml::debug(" grading history ");
1155: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1156: }
1.363 albertel 1157:
1.159 albertel 1158: #added vars to the scripting enviroment
1.213 albertel 1159: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1160: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1161: &Apache::run::run($expression,$safeeval);
1.159 albertel 1162: my $status;
1163: my $accessmsg;
1.508 raeburn 1164: my $resource_due;
1.159 albertel 1165:
1.343 albertel 1166: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1167: my ($result,$form_tag_start,$slot_name,$slot);
1168:
1169: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1170: $target eq 'tex') {
1171: if ($env{'form.markaccess'}) {
1172: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 ! raeburn 1173: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1174: }
1175:
1176: ($status,$accessmsg,$slot_name,$slot) =
1177: &Apache::lonhomework::check_slot_access('0','problem');
1178: push (@Apache::inputtags::status,$status);
1179: }
1180:
1.354 albertel 1181: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1182: || $target eq 'edit') {
1.350 albertel 1183: ($result,$form_tag_start) =
1184: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1185: $name);
1186: }
1187:
1.284 albertel 1188: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1189:
1.479 raeburn 1190: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1191: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1192: $target eq 'tex') {
1.479 raeburn 1193:
1.159 albertel 1194: #handle rand seed in construction space
1.479 raeburn 1195: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1196: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1197:
1.333 albertel 1198: if ($env{'request.state'} ne "construct" &&
1199: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1200: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1201: $rndseed.'" />'.
1202: '<input type="submit" name="resetdata"
1203: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1204: if (exists($env{'form.username'})) {
1205: $form_tag_start.=
1.164 albertel 1206: '<input type="hidden" name="username"
1.284 albertel 1207: value="'.$env{'form.username'}.'" />';
1.334 albertel 1208: }
1.462 raeburn 1209: if ($env{'request.role.adv'}) {
1210: $form_tag_start.= ' <label class="LC_nobreak">'
1211: .'<input type="checkbox" name="showallfoils"';
1212: if (defined($env{'form.showallfoils'})) {
1213: $form_tag_start.=' checked="checked"';
1214: }
1215: $form_tag_start.= ' /> '
1216: .&mt('Show All Foils')
1217: .'</label>';
1218: }
1.417 www 1219: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1220: $form_tag_start.=&practice_problem_header();
1.417 www 1221: }
1.462 raeburn 1222: $form_tag_start.='<hr />';
1.479 raeburn 1223: } elsif (($env{'request.state'} ne "construct") &&
1224: ($Apache::lonhomework::type eq 'randomizetry') &&
1225: ($status eq 'CAN_ANSWER')) {
1226: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1227: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1228: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1229: }
1.324 albertel 1230:
1.159 albertel 1231: my $expression='$external::datestatus="'.$status.'";';
1232: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1233: &Apache::run::run($expression,$safeeval);
1234: &Apache::lonxml::debug("Got $status");
1.324 albertel 1235:
1.159 albertel 1236: if (( $status eq 'CLOSED' ) ||
1237: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1238: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1239: ( $status eq 'BANNED') ||
1.216 albertel 1240: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1241: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1242: ( $status eq 'NOTRESERVABLE') ||
1243: ( $status eq 'RESERVABLE') ||
1244: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1245: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1246: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1247: $style);
1.159 albertel 1248: if ( $target eq "web" ) {
1.343 albertel 1249: my $msg;
1.159 albertel 1250: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1251: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1252: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1253: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1254: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1255: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1256: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1257: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1258: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1259: }
1.216 albertel 1260: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1261: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1262: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1263: $msg.=&checkout_msg();
1.252 albertel 1264: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1265: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1266: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1267: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1268: } elsif ($status eq 'RESERVABLE') {
1269: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1270: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1271: '<br />'.
1272: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1273: } elsif ($status eq 'RESERVABLE_LATER') {
1274: $msg.=&mt('Window to make a reservation will open [_1].',
1275: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1276: } elsif ($status eq 'NOTRESERVABLE') {
1277: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1278: }
1279: $result.=$msg.'<br />';
1280: } elsif ($target eq 'tex') {
1.332 albertel 1281: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1282: : '\begin{minipage}{\textwidth}';
1.443 foxr 1283: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1284: $startminipage.'\vskip 0 mm';
1.159 albertel 1285: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1286: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1287: } else {
1.211 albertel 1288: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1289: }
1290: }
1.324 albertel 1291: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1292: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1293: $style);
1.324 albertel 1294: if ($target eq 'web') {
1.375 albertel 1295: $result .=
1296: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1297: } elsif ($target eq 'grade') {
1298: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1299: 'problem');
1300: }
1.159 albertel 1301: } elsif ($target eq 'web') {
1.508 raeburn 1302: if ($status eq 'CAN_ANSWER') {
1303: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1304: if ($slot_name ne '') {
1305: my $checked_in =
1306: $Apache::lonhomework::history{'resource.0.checkedin'};
1307: if ($checked_in eq '') {
1308: # unproctored slot access, self checkin
1309: &Apache::bridgetask::check_in('problem',undef,undef,
1310: $slot_name);
1311: $checked_in =
1312: $Apache::lonhomework::results{"resource.0.checkedin"};
1313: }
1314: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1315: if ($slot->{'starttime'} < time()) {
1316: if (!$resource_due) {
1317: $resource_due = $slot->{'endtime'};
1318: } elsif ($slot->{'endtime'} < $resource_due) {
1319: $resource_due = $slot->{'endtime'};
1320: }
1321: }
1322: }
1323: }
1324: if ($resource_due) {
1325: my $time_left = $resource_due - time();
1326: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1327: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1328: }
1329: }
1330: }
1.368 albertel 1331: $result.="\n $form_tag_start \t".
1.227 albertel 1332: '<input type="hidden" name="submitted" value="yes" />';
1333: # create a page header and exit
1.284 albertel 1334: if ($env{'request.state'} eq "construct") {
1335: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1336: if ($Apache::lonhomework::type eq 'practice') {
1337: $result.= '<input type="submit" name="resetdata" '.
1338: 'value="'.&mt('New Problem Variation').'" />'.
1339: &practice_problem_header().'<hr />';
1340: }
1.227 albertel 1341: }
1342: # if we are viewing someone else preserve that info
1.284 albertel 1343: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1344: foreach my $field ('symb','courseid','domain','username') {
1345: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1346: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1347: }
1.479 raeburn 1348: foreach my $field ('trial','questiontype') {
1349: if ($env{"form.grade_$field"} ne '') {
1350: $result .= '<input type="hidden" name="grade_'.$field.
1351: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1352: }
1353: }
1.159 albertel 1354: }
1.490 raeburn 1355: if ($env{'form.grade_imsexport'}) {
1356: $result = '';
1357: }
1.159 albertel 1358: } elsif ($target eq 'tex') {
1.319 foxr 1359: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1360: $result .= &select_metadata_hyphenation();
1361:
1.319 foxr 1362:
1.99 sakharuk 1363: }
1.159 albertel 1364: } elsif ($target eq 'edit') {
1.343 albertel 1365: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1366: $Apache::lonxml::warnings_error_header=
1367: &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 1368: my $temp=&Apache::edit::insertlist($target,$token);
1369: $result.=$temp;
1370: } elsif ($target eq 'modified') {
1371: $result=$token->[4];
1372: } else {
1373: # page_start returned a starting result, delete it if we don't need it
1374: $result = '';
1.99 sakharuk 1375: }
1.159 albertel 1376: return $result;
1.9 albertel 1377: }
1378:
1379: sub end_problem {
1.159 albertel 1380: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1381: my $result;
1.310 foxr 1382:
1.321 albertel 1383: if (!$Apache::lonxml::metamode) {
1384: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1385: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1386: }
1.319 foxr 1387:
1388: if ($target eq 'tex') {
1.321 albertel 1389: # Figure out the front matter and replace the
1390: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1391: # this in end_problem because whether or not we display due
1392: # dates depends on whether due dates have already been
1393: # displayed in the problem parts.
1394:
1.319 foxr 1395: my $frontmatter = '';
1396: my $startminipage = '';
1397: if (not $env{'form.problem_split'}=~/yes/) {
1398: $startminipage = '\begin{minipage}{\textwidth}';
1399: }
1400: my $id = $Apache::inputtags::part;
1401: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1402: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1403: my @packages = split /,/,$packages;
1404: my $allow_print_points = 0;
1405: foreach my $partial_key (@packages) {
1406: if ($partial_key=~m/^part_0$/) {
1407: $allow_print_points=1;
1408: }
1409: }
1410: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1411: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1412: if (lc($env{'course.'.$env{'request.course.id'}.
1413: '.disableexampointprint'}) eq 'yes') {
1414: $allow_print_points=0;
1415: }
1416: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1417: 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 1418: &clear_required_languages();
1.319 foxr 1419: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1420: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1421:
1422: # Figure out what the due date is and if we need to print
1423: # it in the problem header. We have been logging the
1424: # last due date written to file.
1425:
1426: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1427: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1428: my $duedate_text = &mt('Due date: [_1]'
1429: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1430: my $temp_file;
1431: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1432:
1433: # Figure out what the last printed due date is or set it
1434: # to the epoch if no duedates have been printed.
1435:
1436: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1437: if (-e $filename) {
1438: $temp_file = Apache::File->new($filename);
1439: my @due_file = <$temp_file>;
1440: $due_file_content = $due_file[$#due_file];
1441: chomp $due_file_content;
1442: }
1443:
1444: # We display the due date iff it is not the same as the last
1445: # duedate in problem header ($due_file_content), and
1446: # none of our parts displayed a duedate.
1447: #
1448: my $parts_with_displayduedate;
1449: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1450: $parts_with_displayduedate =
1451: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1452: } else {
1453: $parts_with_displayduedate = 0;
1454: }
1455: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1456: $temp_file = Apache::File->new('>'.$filename);
1457: print $temp_file "$duetime\n";
1458: if (not $env{'request.symb'} =~ m/\.page_/) {
1459: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1460: $frontmatter .= $begin_doc.
1.448 bisitz 1461: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1462: } else {
1463: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1464: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1465: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1466: }
1.319 foxr 1467: }
1468: } else {
1.448 bisitz 1469: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1470: }
1471: } else {
1472: if (not $env{'request.symb'} =~ m/\.page_/) {
1473: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1474: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1475: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1476: }
1.319 foxr 1477: } else {
1.381 albertel 1478: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1479: }
1480: }
1481: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1482: }
1483:
1.159 albertel 1484: my $status=$Apache::inputtags::status['-1'];
1485: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1486: $target eq 'tex') {
1.249 albertel 1487: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1488: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1489: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1490: &Apache::inputtags::grade;
1.324 albertel 1491: } elsif ($status eq 'NEEDS_CHECKIN') {
1492: # no need to grade, and don't want to hide data
1.249 albertel 1493: } else {
1494: # move any submission data to .hidden
1495: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1496: }
1.159 albertel 1497: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1498: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1499: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1500: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1501: # if part is zero, no <part>s existed, so we need show the current
1502: # grading status
1503: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1504: $result.= $gradestatus;
1505: }
1506: if (
1.284 albertel 1507: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1508: ($target eq 'answer') || ($target eq 'tex')
1509: ) {
1.490 raeburn 1510: if (($target ne 'tex') &&
1511: ($env{'form.answer_output_mode'} ne 'tex') &&
1512: (!$env{'form.grade_imsexport'})) {
1.254 www 1513: $result.="</form>";
1.159 albertel 1514: }
1515: if ($target eq 'web') {
1.507 raeburn 1516: #
1517: # Closing </body></html> not added by end_page().
1518: # Added separately at end of this routine, after added
1519: # <script></script> so document will be valid xhtml.
1520: #
1521: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1522: 'notbody' => 1});
1.159 albertel 1523: } elsif ($target eq 'tex') {
1.178 sakharuk 1524: my $endminipage = '';
1.284 albertel 1525: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1526: $endminipage = '\end{minipage}';
1527: }
1.284 albertel 1528: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1529: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1530: } else {
1.262 sakharuk 1531: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1532: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1533: $result .= $endminipage.'\end{document} ';
1534: } else {
1.382 albertel 1535: $result .= $endminipage;
1.262 sakharuk 1536: }
1.159 albertel 1537: }
1538: }
1539: }
1.476 www 1540: if ($target eq 'web') {
1541: $result.=&Apache::functionplotresponse::init_script();
1542: }
1.159 albertel 1543: if ($target eq 'grade') {
1544: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1545: &finalize_storage();
1546: }
1.284 albertel 1547: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1548: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1549: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1550: # normally we get it from above, but in CSTR
1.172 albertel 1551: # we always show answer mode too.
1.159 albertel 1552: }
1553: } elsif ($target eq 'meta') {
1554: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1555: @Apache::inputtags::response=();
1.159 albertel 1556: $result=&Apache::response::mandatory_part_meta;
1557: }
1.215 albertel 1558: $result.=&Apache::response::meta_part_order();
1.258 albertel 1559: $result.=&Apache::response::meta_response_order();
1.159 albertel 1560: } elsif ($target eq 'edit') {
1561: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1562: $result .= &problem_edit_footer();
1.320 albertel 1563: } elsif ($target eq 'modified') {
1564: $result .= $token->[2];
1.159 albertel 1565: }
1.155 albertel 1566:
1.284 albertel 1567: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1568: &Apache::inputtags::check_for_duplicate_ids();
1569: }
1.204 albertel 1570:
1571: &reset_problem_globals('problem');
1.159 albertel 1572:
1.502 foxr 1573: #
1574: # This shouild be just above the return so that the
1575: # time put in the javascript is as late as possible in the
1576: # computation:
1577: #
1578: if ($target eq 'web') {
1579: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1580: #
1581: # Closing tags delayed so any <script></script> tags
1582: # not in head can appear inside body, for valid xhtml.
1583: #
1584: $result .= "</body>\n</html>";
1.502 foxr 1585: }
1.159 albertel 1586: return $result;
1.48 albertel 1587: }
1588:
1.108 albertel 1589:
1.48 albertel 1590: sub start_library {
1.159 albertel 1591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1592: my ($result,$form_tag_start);
1.371 albertel 1593: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1594: &init_problem_globals('library');
1595: $Apache::lonhomework::type='problem';
1596: }
1.159 albertel 1597: if ($target eq 'edit') {
1.343 albertel 1598: ($result,$form_tag_start)=
1599: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1600: 'Edit');
1601: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1602: my $temp=&Apache::edit::insertlist($target,$token);
1603: $result.=$temp;
1604: } elsif ($target eq 'modified') {
1605: $result=$token->[4];
1.340 albertel 1606: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1607: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1608: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1609: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1610: ($result,$form_tag_start)=
1611: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1612: $name);
1.479 raeburn 1613: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1614: $result.=" \n $form_tag_start".
1.159 albertel 1615: '<input type="hidden" name="submitted" value="yes" />';
1616: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1617: if ($Apache::lonhomework::type eq 'practice') {
1618: $result.= '<input type="submit" name="resetdata" '.
1619: 'value="'.&mt('New Problem Variation').'" />'.
1620: &practice_problem_header().'<hr />';
1621: }
1.159 albertel 1622: }
1623: return $result;
1.48 albertel 1624: }
1625:
1626: sub end_library {
1.159 albertel 1627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1628: my $result='';
1629: if ($target eq 'edit') {
1630: $result=&problem_edit_footer();
1.371 albertel 1631: } elsif ($target eq 'web'
1632: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1633: && $env{'request.state'} eq "construct") {
1.349 albertel 1634: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1635: }
1.371 albertel 1636: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1637: &reset_problem_globals('library');
1638: }
1.159 albertel 1639: return $result;
1.197 www 1640: }
1641:
1642: sub start_definetag {
1.326 albertel 1643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1644:
1645: my $result;
1646:
1647: my $name = $token->[2]->{'name'};
1.326 albertel 1648: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1649: if ($target eq 'web') {
1650: if ($name=~/^\//) {
1651: $result=
1652: '<br /><table class="LC_sty_end"><tr><th>'.
1653: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1654: } else {
1655: $result=
1656: '<br /><table class="LC_sty_begin"><tr><th>'.
1657: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1658: }
1659: $skip = &HTML::Entities::encode($skip, '<>&"');
1660: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1661: }
1662: return $result;
1663: }
1664:
1665: sub end_definetag {
1666: return '';
1.1 albertel 1667: }
1668:
1669: sub start_block {
1.201 albertel 1670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1671:
1672: my $result;
1.1 albertel 1673:
1.339 albertel 1674: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1675: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1676: my $code = $token->[2]->{'condition'};
1.385 albertel 1677: if (defined($code) && $code ne '') {
1.137 albertel 1678: if (!$Apache::lonxml::default_homework_loaded) {
1679: &Apache::lonxml::default_homework_load($safeeval);
1680: }
1.131 albertel 1681: $result = &Apache::run::run($code,$safeeval);
1682: &Apache::lonxml::debug("block :$code: returned :$result:");
1683: } else {
1684: $result='1';
1685: }
1686: if ( ! $result ) {
1.201 albertel 1687: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1688: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1689: }
1690: $result='';
1691: } elsif ($target eq 'edit') {
1692: $result .=&Apache::edit::tag_start($target,$token);
1693: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1694: $token,40);
1695: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1696: } elsif ($target eq 'modified') {
1697: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1698: $safeeval,'condition');
1699: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1700: }
1.131 albertel 1701: return $result;
1.1 albertel 1702: }
1703:
1704: sub end_block {
1.167 www 1705: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1706: my $result;
1707: if ($target eq "edit") {
1708: $result.= &Apache::edit::tag_end($target,$token,'');
1709: }
1710: return $result;
1711: }
1.500 foxr 1712: #
1713: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1714: # ...
1715: # </languageblock>
1716: #
1717: # This declares the intent to provide content that can be rendered in the
1718: # set of languages in the include specificatino but not in the exclude
1719: # specification. If a currently preferred language is in the include list
1720: # the content in the <languageblock>...</languageblock> is rendered
1721: # If the currently preferred language is in the exclude list,
1722: # the content in the <languageblock>..></languageblock is not rendered.
1723: #
1724: # Pathalogical case handling:
1725: # - Include specified, without the preferred language but exclude specified
1726: # also without the preferred langauge results in rendering the block.
1727: # - Exclude specified without include and excluden not containing a
1728: # preferred language renders the block.
1729: # - Include and exclude both specifying the preferred language does not
1730: # render the block.
1731: # - If neither include/exclude is specified, the block gets rendered.
1732: #
1733: # This tag has no effect when target is in {edit, modified}
1734: #
1.167 www 1735: sub start_languageblock {
1.201 albertel 1736: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1737:
1.500 foxr 1738: my $result = '';
1.167 www 1739:
1.339 albertel 1740: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1741: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1742: my $include = $token->[2]->{'include'};
1743: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1744: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1745:
1746: # This should not even happen, since we should at least have the server language
1747:
1748: if (!$preferred_languages[0]) {
1749: $preferred_languages[0]='en';
1750: }
1751:
1752: # Now loop over all languages in order of preference
1753:
1754: my $render;
1.398 www 1755: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1756:
1757: # If neither include/nor exlude is present the block is going
1758: # to get rendered.
1759:
1.399 www 1760: my $found=0;
1.500 foxr 1761: $render=1;
1762:
1763: # If include is specified, don't render the block
1764: # unless the preferred language is included in the set.
1765:
1.398 www 1766: if ($include) {
1.500 foxr 1767: $render=0;
1.398 www 1768: foreach my $included_language (split(/\,/,$include)) {
1769: if ($included_language eq $preferred_language) {
1.500 foxr 1770: $render=1;
1.399 www 1771: $found=1;
1.500 foxr 1772: last; # Only need to find the first.
1.398 www 1773: }
1774: }
1775: }
1.500 foxr 1776: # Do we have an exclude argument?
1777: # If so, and one of the languages matches a preferred language
1778: # inhibit rendering the block. Note that in the pathalogical case the
1779: # author has specified a preferred language in both the include and exclude
1780: # attribte exclude is preferred.
1781:
1.398 www 1782: if ($exclude) {
1.500 foxr 1783: $render=1;
1.398 www 1784: foreach my $excluded_language (split(/\,/,$exclude)) {
1785: if ($excluded_language eq $preferred_language) {
1.500 foxr 1786: $render=0;
1.399 www 1787: $found=1;
1.500 foxr 1788: last; # Only need to find the first.
1.398 www 1789: }
1790: }
1791: }
1.500 foxr 1792: if ($found) {
1793: last; # Done on any match of include or exclude.
1794: }
1.398 www 1795: }
1.500 foxr 1796: # If $render not true skip the entire block until </languageblock>
1797: #
1798:
1799: if ( ! $render ) {
1.201 albertel 1800: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1801: $style);
1802: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1803: }
1.500 foxr 1804: # If $render is true, we've not skipped the contents of the <languageglock>
1805: # and the normal loncapa processing flow will render it as a matter of course.
1806:
1.167 www 1807: } elsif ($target eq 'edit') {
1808: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1809: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1810: $token,40);
1.211 albertel 1811: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1812: $token,40);
1813: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1814: } elsif ($target eq 'modified') {
1815: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1816: $safeeval,'include',
1817: 'exclude');
1.167 www 1818: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1819: }
1820: return $result;
1821: }
1822:
1823: sub end_languageblock {
1.170 www 1824: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1825: my $result;
1.201 albertel 1826: if ($target eq "edit") {
1.170 www 1827: $result.= &Apache::edit::tag_end($target,$token,'');
1828: }
1829: return $result;
1830: }
1.500 foxr 1831: # languagblock specific tags:
1832: {
1833: # For chunks of a resource that has translations, this hash contains
1834: # the translations available indexed by language name.
1835: #
1836:
1837: my %available_texts;
1.170 www 1838:
1.500 foxr 1839: # <translated> starts a block of a resource that has multiple translations.
1840: # See the <lang> tag as well.
1841: # When </translated> is encountered if there is a translation for the
1842: # currently preferred language, that is rendered inthe web/tex/webgrade
1843: # targets. Otherwise, the default text is rendered.
1844: #
1845: # Note that <lang> is only registered for the duration of the
1846: # <translated>...</translated> block
1847: #
1848: # Pathalogical case handling:
1849: # - If there is no <lang> that specifies a 'default' and there is no
1850: # translation that matches a preferred language, nothing is rendered.
1851: # - Nested <translated>...</translated> might be linguistically supported by
1852: # XML due to the stack nature of tag registration(?) however the rendered
1853: # output will be incorrect because there is only one %available_texts
1854: # has and end_translated clears it.
1855: # - Material outside of a <lang>...</lang> block within the
1856: # <translated>...<translated> block won't render either e.g.:
1857: # <translated>
1858: # The following will be in your preferred langauge:
1859: # <lang which='en'>
1860: # This section in english
1861: # </lang>
1862: # <lang which='sgeiso'>
1863: # Hier es ist auf Deutsch.
1864: # </lang>
1865: # <lang which='sfriso'>
1866: # En Francais
1867: # </lang>
1868: # </translated>
1869: #
1870: # The introductory text prior to the first <lang> tag is not rendered.
1871: #
1.397 albertel 1872: sub start_translated {
1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1874: &Apache::lonxml::register('Apache::structuretags',('lang'));
1875: undef(%available_texts);
1876: }
1877:
1878: sub end_translated {
1879: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1880: my $result;
1881: #show the translation on viewable targets
1882: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1883: # or non-viewable targets, if it's embedded in something that
1884: # wants the output
1885: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1886: && &Apache::lonxml::in_redirection() ) ) {
1887: my @possibilities = keys(%available_texts);
1888: my $which =
1889: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1890: if ($target eq 'tex') {
1891: $result = &select_hyphenation($which);
1892: }
1893: $result .= $available_texts{$which};
1894: if ($target eq 'tex') {
1895: $result .= &select_metadata_hyphenation(); # Restore original language.
1896: }
1.397 albertel 1897: }
1898: undef(%available_texts);
1899: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1900: return $result;
1901: }
1902:
1.500 foxr 1903: # <lang [which='language-name'] [other='lang1,lang2...']>
1904: # Specifies that the block contained within it is a translation
1905: # for a specific language specified by the 'which' attribute. The
1906: # 'other' attribute can be used by itself or in conjunction with
1907: # which to specify this tag _may_ be used as a translation for some
1908: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1909: # specifying that the block provides a translation for US (primary)
1910: # Canadian, Australian and UK Englush.
1911: #
1912: # Comment: this seems a bit silly why not just support a list of languages
1913: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1914: #
1915: # Effect:
1916: # The material within the <lang>..</lang> block is stored in the
1917: # specified set of $available_texts hash entries, the appropriate one
1918: # is selected at </translated> time.
1919: #
1920: # Pathalogical case handling:
1921: # If a language occurs multiple times within a <translated> block,
1922: # only the last one is rendered e.g.:
1923: #
1924: # <translated>
1925: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1926: # Red green color blindness is quite common affecting about 7.8% of
1927: # the male population, but onloy about .65% of the female population.
1928: # </lang>
1929: # Red green colour blindness is quite common affecting about 7.8% of
1930: # the male population, but onloy about .65% of the female population.
1931: # <lang which='seniso', other='senisoCA,senisoAU'>
1932: # </translated>
1933: #
1934: # renders the correct spelling of color (colour) for people who have specified
1935: # a preferred language that is one of the British Commonwealth languages
1936: # even though those are also listed as valid selections for the US english
1937: # <lang> block.
1938: #
1.397 albertel 1939: sub start_lang {
1940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1941: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1942: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1943: &Apache::lonxml::startredirection();
1944: }
1945: return '';
1946: }
1947:
1948: sub end_lang {
1949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1950: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1951: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1952: my $result = &Apache::lonxml::endredirection();
1953: my $which = &Apache::lonxml::get_param('which',$parstack,
1954: $safeeval);
1.431 raeburn 1955: if ($which=~/\w/) {
1956: $available_texts{$which} = $result;
1957: }
1958: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1959: $safeeval);
1960: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1961: if ($language=~/\w/) {
1962: $available_texts{$language} = $result;
1963: }
1.427 bisitz 1964: }
1965:
1.397 albertel 1966: }
1967: return '';
1968: }
1.500 foxr 1969: } # end langauge block specific tags.
1970:
1.397 albertel 1971:
1.170 www 1972: sub start_instructorcomment {
1.201 albertel 1973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1974:
1975: my $result;
1976:
1.339 albertel 1977: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1978: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1979: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1980: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1981: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1982: $parser,$style);
1.170 www 1983: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1984: }
1985: $result='';
1986: } elsif ($target eq 'edit') {
1987: $result .=&Apache::edit::tag_start($target,$token);
1988: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1989: }
1990: return $result;
1991: }
1992:
1993: sub end_instructorcomment {
1.159 albertel 1994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1995: my $result;
1996: if ($target eq "edit") {
1997: $result.= &Apache::edit::tag_end($target,$token,'');
1998: }
1999: return $result;
1.4 tsai 2000: }
2001:
2002: sub start_while {
1.326 albertel 2003: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2004:
1.160 albertel 2005: my $result;
1.339 albertel 2006: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2007: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2008: my $code = $token->[2]->{'condition'};
1.4 tsai 2009:
1.160 albertel 2010: push( @Apache::structuretags::whileconds, $code);
2011: if (!$Apache::lonxml::default_homework_loaded) {
2012: &Apache::lonxml::default_homework_load($safeeval);
2013: }
2014: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2015: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2016: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2017: push( @Apache::structuretags::whileline, $token->[5]);
2018: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2019: if ( $result ) {
2020: &Apache::lonxml::newparser($parser,\$bodytext);
2021: }
2022: } elsif ($target eq 'edit') {
2023: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2024: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2025: $token,40);
2026: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2027: } elsif ($target eq 'modified') {
2028: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2029: $safeeval,'condition');
2030: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2031: }
1.160 albertel 2032: return $result;
1.4 tsai 2033: }
2034:
2035: sub end_while {
1.159 albertel 2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2037: my $result;
2038:
1.339 albertel 2039: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2040: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2041: my $code = pop(@Apache::structuretags::whileconds);
2042: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2043: my $line = pop(@Apache::structuretags::whileline);
2044: my $return = &Apache::run::run($code,$safeeval);
2045: my $starttime=time;
2046: my $error=0;
2047: while ($return) {
2048: if (time-$starttime >
2049: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2050: $return = 0; $error=1; next;
1.161 albertel 2051: }
2052: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2053: if ($target eq 'grade' || $target eq 'answer' ||
2054: $target eq 'analyze') {
2055: # grade/answer/analyze should produce no output but if we
2056: # are redirecting, the redirecter should know what to do
2057: # with the output
2058: if (!$Apache::lonxml::redirection) { undef($result); }
2059: }
1.161 albertel 2060: $return = &Apache::run::run($code,$safeeval);
2061: }
1.516 bisitz 2062: if ($error) {
2063: &Apache::lonxml::error(
2064: '<pre>'
2065: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2066: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2067: .&mt('This occurred while running <while> on line [_1].',
2068: $line)
2069: .'</pre>');
2070: }
1.160 albertel 2071: } elsif ($target eq "edit") {
2072: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2073: }
1.160 albertel 2074: return $result;
1.1 albertel 2075: }
1.6 tsai 2076:
1.160 albertel 2077: # <randomlist show="1">
1.6 tsai 2078: # <tag1>..</tag1>
2079: # <tag2>..</tag2>
2080: # <tag3>..</tag3>
1.160 albertel 2081: # ...
1.6 tsai 2082: # </randomlist>
2083: sub start_randomlist {
1.326 albertel 2084: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2085: my $result;
1.339 albertel 2086: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2087: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2088: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2089: my $b_parser= HTML::LCParser->new(\$body);
2090: $b_parser->xml_mode(1);
2091: $b_parser->marked_sections(1);
1.159 albertel 2092: my $b_tok;
2093: my @randomlist;
2094: my $list_item;
2095: while($b_tok = $b_parser->get_token() ) {
2096: if($b_tok->[0] eq 'S') { # start tag
2097: # get content of the tag until matching end tag
2098: # get all text upto the matching tag
2099: # and push the content into @randomlist
2100: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2101: $b_parser);
2102: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2103: push(@randomlist,$list_item);
2104: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2105: # $list_item</b>";
2106: }
2107: if($b_tok->[0] eq 'T') { # text
2108: # what to do with text in between tags?
2109: # print "<b>TEXT $b_tok->[1]</b><br />";
2110: }
2111: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2112: # print "<b>END-TAG $b_tok->[1]</b><br />";
2113: # }
2114: }
1.303 albertel 2115: if (@randomlist) {
2116: my @idx_arr = (0 .. $#randomlist);
2117: &Apache::structuretags::shuffle(\@idx_arr);
2118: my $bodytext = '';
2119: my $show=$#randomlist;
2120: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2121: $showarg--;
2122: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2123: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2124: my @currlist;
2125: my $part = $Apache::inputtags::part;
2126: if ($part ne '') {
2127: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2128: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2129: if (!(grep(/^\Q$part\E$/,@currlist))) {
2130: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2131: }
2132: } else {
2133: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2134: }
2135: }
2136: }
1.303 albertel 2137: for(0 .. $show) {
2138: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2139: }
2140: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2141: }
2142: } elsif ($target eq 'edit' ) {
2143: $result .=&Apache::edit::tag_start($target,$token);
2144: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2145: $token,5);
2146: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2147: } elsif ($target eq 'modified' ) {
2148: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2149: $safeeval,'show');
2150: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2151: }
2152: return $result;
1.7 tsai 2153: }
2154:
2155: sub shuffle {
2156: my $a=shift;
2157: my $i;
1.303 albertel 2158: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2159: &Apache::response::pushrandomnumber();
1.159 albertel 2160: for($i=@$a;--$i;) {
2161: my $j=int(&Math::Random::random_uniform() * ($i+1));
2162: next if $i == $j;
2163: @$a[$i,$j] = @$a[$j,$i];
2164: }
1.251 albertel 2165: &Apache::response::poprandomnumber();
1.7 tsai 2166: }
1.6 tsai 2167: }
2168:
2169: sub end_randomlist {
1.159 albertel 2170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2171: my $result;
2172: if ($target eq 'edit' ) {
2173: $result=&Apache::edit::tag_end($target,$token,
2174: 'End Randomly Parsed Block');
2175: }
2176: return $result;
1.6 tsai 2177: }
2178:
1.283 albertel 2179: sub ordered_show_check {
2180: my $last_part=$Apache::inputtags::partlist[-2];
2181: my $in_order=
2182: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2183: my $in_order_show=1;
2184: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2185: $in_order_show=&Apache::response::check_status($last_part);
2186: }
2187: return $in_order_show;
2188: }
2189:
1.469 www 2190:
2191: sub start_startpartmarker {
2192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2193: my $result='';
2194: if ($target eq 'edit') {
2195: $result=&Apache::edit::tag_start($target,$token);
2196: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2197: $result.=&Apache::edit::end_table();
2198:
2199: }
2200: return $result;
2201: }
2202:
2203: sub end_startpartmarker {
2204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2205: my @result;
2206: if ($target eq 'edit') { $result[1]='no'; }
2207: return @result;
2208: }
2209:
2210: sub start_endpartmarker {
2211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2212: my $result='';
2213: if ($target eq 'edit') {
2214: $result=&Apache::edit::tag_start($target,$token);
2215: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2216: $result.=&Apache::edit::end_table();
2217:
2218: }
2219: return $result;
2220: }
2221:
2222: sub end_endpartmarker {
2223: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2224: my @result;
2225: if ($target eq 'edit') { $result[1]='no'; }
2226: return @result;
2227: }
2228:
2229:
2230:
2231:
2232:
1.11 albertel 2233: sub start_part {
1.326 albertel 2234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2235: if (!$Apache::lonxml::metamode) {
2236: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2237: # duedates.
2238: }
1.159 albertel 2239: my $result='';
1.386 albertel 2240: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2241: $Apache::inputtags::part=$id;
1.177 albertel 2242: push(@Apache::inputtags::partlist,$id);
2243: @Apache::inputtags::response=();
1.159 albertel 2244: @Apache::inputtags::previous=();
2245: @Apache::inputtags::previous_version=();
1.405 albertel 2246: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2247: &Apache::response::reset_params();
2248:
1.159 albertel 2249: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2250: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2251: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2252: my $in_order_show=&ordered_show_check();
1.214 albertel 2253: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2254: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2255: &Apache::run::run($expression,$safeeval);
1.159 albertel 2256:
2257: if ($target eq 'meta') {
1.224 www 2258: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2259: return &Apache::response::mandatory_part_meta.
2260: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2261: } elsif ($target eq 'web' || $target eq 'grade' ||
2262: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2263: if ($hidden || !$in_order_show) {
1.326 albertel 2264: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2265: } else {
2266: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2267: push (@Apache::inputtags::status,$status);
2268: my $expression='$external::datestatus="'.$status.'";';
2269: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2270: &Apache::run::run($expression,$safeeval);
1.284 albertel 2271: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2272: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2273: }
1.216 albertel 2274: if (( $status eq 'CLOSED' ) ||
2275: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2276: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2277: ( $status eq 'BANNED') ||
2278: ( $status eq 'UNAVAILABLE') ||
2279: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2280: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2281: $style);
1.159 albertel 2282: if ( $target eq "web" ) {
1.211 albertel 2283: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2284: } elsif ( $target eq 'tex' ) {
1.284 albertel 2285: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2286: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2287: } else {
1.211 albertel 2288: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2289: }
1.159 albertel 2290: }
2291: } else {
2292: if ($target eq 'tex') {
1.284 albertel 2293: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2294: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2295: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2296: } else {
2297: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2298: }
1.195 sakharuk 2299: }
1.159 albertel 2300: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2301: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2302: my @allkeys = split /,/,$allkeys;
2303: my $allow_print_points = 0;
2304: foreach my $partial_key (@allkeys) {
1.230 albertel 2305: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2306: if ($1 ne '0') {$allow_print_points=1;}
2307: }
2308: }
1.275 albertel 2309: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2310: if (defined($maxtries) && $maxtries < 0) {
2311: $allow_print_points=0;
2312: }
1.302 albertel 2313: if (lc($env{'course.'.$env{'request.course.id'}.
2314: '.disableexampointprint'}) eq 'yes') {
2315: $allow_print_points=0;
2316: }
1.463 foxr 2317: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2318: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2319:
2320: }
1.233 www 2321: } elsif ($target eq 'web') {
1.479 raeburn 2322: if ($status eq 'CAN_ANSWER') {
2323: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2324: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2325: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2326: my $num = scalar(@Apache::inputtags::partlist)-1;
2327: if ($probrandomize eq 'randomizetry') {
2328: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2329: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2330: } else {
2331: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2332: if ($probrandtries ne $reqtries) {
2333: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2334: }
2335: }
2336: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2337: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2338: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2339: }
2340: }
1.475 raeburn 2341: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2342: }
2343: }
2344: }
2345: } elsif ($target eq 'edit') {
2346: $result.=&Apache::edit::tag_start($target,$token);
2347: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2348: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2349: ' '.
2350: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2351: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2352: } elsif ($target eq 'modified') {
2353: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2354: $safeeval,'id','display');
1.159 albertel 2355: if ($constructtag) {
1.225 albertel 2356: #limiting ids to only letters numbers, and space
1.224 www 2357: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2358: $result = &Apache::edit::rebuild_tag($token);
2359: }
2360: }
2361: return $result;
1.11 albertel 2362: }
2363:
2364: sub end_part {
1.159 albertel 2365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2366: &Apache::lonxml::debug("in end_part $target ");
2367: my $status=$Apache::inputtags::status['-1'];
2368: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2369: my $in_order_show=&ordered_show_check();
1.321 albertel 2370: my $result;
2371: if (!$Apache::lonxml::metamode) {
2372: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2373: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2374: }
1.312 albertel 2375: if ($target eq 'grade') {
1.249 albertel 2376: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2377: !$hidden && $in_order_show) {
1.311 foxr 2378: $result.=&Apache::inputtags::grade;
1.249 albertel 2379: } else {
2380: # move any submission data to .hidden
2381: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2382: }
1.283 albertel 2383: } elsif (($target eq 'web' || $target eq 'tex') &&
2384: !$hidden && $in_order_show) {
1.159 albertel 2385: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2386: $target);
1.490 raeburn 2387: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2388: ($env{'form.grade_imsexport'})) {
1.212 albertel 2389: $gradestatus='';
2390: }
1.311 foxr 2391: $result.=$gradestatus;
1.265 sakharuk 2392: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2393: } elsif ($target eq 'edit') {
1.311 foxr 2394: $result.=&Apache::edit::end_table();
1.322 albertel 2395: } elsif ($target eq 'modified') {
2396: $result .= $token->[2];
1.159 albertel 2397: }
2398: pop @Apache::inputtags::status;
2399: $Apache::inputtags::part='';
1.295 albertel 2400: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2401: return $result;
1.11 albertel 2402: }
1.1 albertel 2403:
1.25 albertel 2404: sub start_preduedate {
1.326 albertel 2405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2406: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2407: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2408: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2409: if (!$Apache::lonhomework::scantronmode &&
2410: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2411: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2412: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2413: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2414: }
1.24 albertel 2415: }
1.159 albertel 2416: return '';
1.24 albertel 2417: }
2418:
1.25 albertel 2419: sub end_preduedate {
1.159 albertel 2420: return '';
1.24 albertel 2421: }
2422:
1.369 foxr 2423: # In all the modes where <postanswerdate> text is
2424: # displayable, all we do is eat up the text between the start/stop
2425: # tags if the conditions are not right to display it.
1.25 albertel 2426: sub start_postanswerdate {
1.326 albertel 2427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2428: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2429: &Apache::lonnet::allowed('pav',
2430: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2431: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2432: $target eq 'tex' ) {
1.300 albertel 2433: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2434: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2435: (($target eq 'tex') && !$pav)) {
1.326 albertel 2436: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2437: }
2438: }
2439: return '';
1.24 albertel 2440: }
2441:
1.25 albertel 2442: sub end_postanswerdate {
1.159 albertel 2443: return '';
1.24 albertel 2444: }
2445:
1.25 albertel 2446: sub start_notsolved {
1.326 albertel 2447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2448: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2449: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2450: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2451: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2452: if ($gradestatus =~ /^correct/ &&
2453: &Apache::response::show_answer()) {
1.159 albertel 2454: &Apache::lonxml::debug("skipping");
1.326 albertel 2455: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2456: }
1.24 albertel 2457: }
1.159 albertel 2458: return '';
1.24 albertel 2459: }
2460:
1.25 albertel 2461: sub end_notsolved {
1.159 albertel 2462: return '';
1.24 albertel 2463: }
2464:
2465: sub start_solved {
1.326 albertel 2466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2467: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2468: $target eq 'tex') {
2469: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2470: if ($gradestatus !~ /^correct/ ||
2471: !&Apache::response::show_answer()) {
1.326 albertel 2472: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2473: }
1.24 albertel 2474: }
1.159 albertel 2475: return '';
1.24 albertel 2476: }
2477:
2478: sub end_solved {
1.248 albertel 2479: return '';
2480: }
2481:
2482: sub start_problemtype {
1.326 albertel 2483: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2484: my $result;
1.339 albertel 2485: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2486: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2487: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2488: if (!defined($mode)) { $mode='show'; }
2489: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2490: my $found=0;
2491: foreach my $type (split(',',$for)) {
2492: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2493: }
2494: if ($mode eq 'show' && !$found) {
1.326 albertel 2495: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2496: }
2497: if ($mode eq 'hide' && $found) {
1.326 albertel 2498: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2499: }
2500: } elsif ($target eq 'edit') {
2501: $result .=&Apache::edit::tag_start($target,$token);
2502: $result.=&Apache::edit::select_arg('Mode:','mode',
2503: [['show','Show'],
2504: ['hide','Hide']]
2505: ,$token);
2506: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2507: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2508: ['survey','Survey'],
1.465 raeburn 2509: ['surveycred','Survey (with credit)'],
2510: ['anonsurvey','Anonymous Survey'],
2511: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2512: ['problem','Homework Problem'],
1.479 raeburn 2513: ['practice','Practice Problem'],
2514: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2515: ,$token);
2516: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2517: } elsif ($target eq 'modified') {
2518: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2519: $safeeval,'mode','for');
2520: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2521: }
2522: return $result;
2523: }
2524:
2525: sub end_problemtype {
1.159 albertel 2526: return '';
1.24 albertel 2527: }
1.34 albertel 2528:
2529: sub start_startouttext {
1.159 albertel 2530: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2531: my @result=(''.'');
2532: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2533:
2534: my $nesting =
2535: &Apache::lonxml::set_state('outtext',
2536: &Apache::lonxml::get_state('outtext')+1);
2537: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2538: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2539: }
1.159 albertel 2540: return (@result);
1.34 albertel 2541: }
1.159 albertel 2542:
1.34 albertel 2543: sub end_startouttext {
1.326 albertel 2544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2545: my $result='';
2546: my $text='';
2547: if ($target eq 'edit') {
1.424 foxr 2548: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2549: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2550: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2551: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2552: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2553: .'</span></td>'
1.515 golterma 2554: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2555: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2556: .'</span></td>'
1.474 raeburn 2557: .'<td>'
2558: .&Apache::edit::insertlist($target,$token)
2559: .'</td>'
1.515 golterma 2560: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2561: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2562: &Apache::edit::end_row().
1.362 albertel 2563: &Apache::edit::start_spanning_row()."\n".
1.255 www 2564: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2565: }
2566: if ($target eq 'modified') {
1.219 albertel 2567: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2568: }
2569: if ($target eq 'tex') {
2570: $result .= '\noindent ';
2571: }
2572: return $result;
1.34 albertel 2573: }
1.159 albertel 2574:
1.34 albertel 2575: sub start_endouttext {
1.159 albertel 2576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2577: my $result='';
2578: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2579: if ($target eq "modified") {
2580: $result='<endouttext />'.
1.377 albertel 2581: &Apache::edit::handle_insertafter('startouttext');
2582: }
1.404 albertel 2583:
2584: my $nesting =
2585: &Apache::lonxml::set_state('outtext',
2586: &Apache::lonxml::get_state('outtext')-1);
2587: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2588: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2589: &Apache::lonxml::set_state('outtext', 0);
2590: }
1.159 albertel 2591: return $result;
1.34 albertel 2592: }
1.159 albertel 2593:
1.34 albertel 2594: sub end_endouttext {
1.159 albertel 2595: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2596: my @result=('','');
2597: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2598: return (@result);
1.34 albertel 2599: }
1.159 albertel 2600:
1.45 albertel 2601: sub delete_startouttext {
1.326 albertel 2602: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2603: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2604: my $text=$$parser['-1']->get_text("/endouttext");
2605: my $ntoken=$$parser['-1']->get_token();
2606: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2607: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2608: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2609: # they did the last time round
2610: &Apache::lonxml::increasedepth($ntoken);
2611: &Apache::lonxml::decreasedepth($ntoken);
2612: return 1;
1.193 www 2613: }
2614:
2615: sub start_simpleeditbutton {
2616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2617: my $result='';
1.284 albertel 2618: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2619: ($target eq 'web') &&
1.330 albertel 2620: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2621: my $url=$env{'request.noversionuri'};
1.193 www 2622: $url=~s/\?.*$//;
1.367 albertel 2623: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2624: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2625: # $result='<p class="LC_warning">'
2626: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2627: # .&Apache::loncommon::help_open_topic('Caching')
2628: # .'</p>';
1.486 www 2629: $result.=&Apache::loncommon::head_subbox(
2630: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2631: .&Apache::lonhtmlcommon::add_item_funclist(
2632: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2633: .&mt('Edit').'</a>')
1.486 www 2634: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2635:
1.193 www 2636: }
2637: return $result;
2638: }
2639:
2640: sub end_simpleeditbutton {
2641: return '';
1.45 albertel 2642: }
1.34 albertel 2643:
1.428 raeburn 2644: sub practice_problem_header {
2645: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2646: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2647: '</span>';
2648: }
2649:
1.479 raeburn 2650: sub randomizetry_problem_header {
2651: my ($problemstatus,$reqtries) = @_;
2652: my ($header,$text);
2653: if ($reqtries > 1) {
2654: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2655: if (($problemstatus eq 'no') ||
2656: ($problemstatus eq 'no_feedback_ever')) {
2657: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2658: } else {
2659: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2660: }
2661: } else {
2662: $header = &mt('New Problem Variation Each Try');
2663: if (($problemstatus eq 'no') ||
2664: ($problemstatus eq 'no_feedback_ever')) {
2665: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2666:
2667: } else {
2668: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2669: }
2670: }
2671: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2672: '<span class="LC_info">'.$text.'</span><hr />';
2673: }
2674:
2675: sub randomizetry_part_header {
2676: my ($problemstatus,$reqtries,$num) = @_;
2677: my ($header,$text);
2678: if ($reqtries eq 'none') {
2679: $header = &mt('No Question Variation');
2680: $text = &mt('For this question there will no new variation after a try.');
2681: } elsif ($reqtries > 1) {
2682: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2683: if (($problemstatus eq 'no') ||
2684: ($problemstatus eq 'no_feedback_ever')) {
2685: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2686: } else {
2687: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2688: }
2689: } else {
2690: $header = &mt('New Question Variation For Each Try');
2691: if (($problemstatus eq 'no') ||
2692: ($problemstatus eq 'no_feedback_ever')) {
2693: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2694: } else {
2695: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2696: }
2697: }
2698: my $output;
2699: if ($num > 1) {
2700: $output .= '<hr />';
2701: }
2702: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2703: '<span class="LC_info">'.$text.'</span><br /><br />';
2704: return $output;
2705: }
2706:
1.1 albertel 2707: 1;
2708: __END__
1.435 jms 2709:
2710: =pod
2711:
2712: =back
2713:
2714: =cut
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