Annotation of loncom/homework/structuretags.pm, revision 1.506
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.506 ! raeburn 4: # $Id: structuretags.pm,v 1.505 2012/04/18 11:49:50 goltermann 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' || $target eq 'edit') {
1.450 bisitz 382: # Breadcrumbs for Construction Space
383: &Apache::lonhtmlcommon::clear_breadcrumbs();
384: &Apache::lonhtmlcommon::add_breadcrumb({
385: 'text' => 'Construction Space',
1.497 raeburn 386: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 387: });
1.460 droeschl 388: # breadcrumbs (and tools) will be created
389: # in start_page->bodytag->innerregister
390:
1.450 bisitz 391: # FIXME Where are we?
392: # &Apache::lonhtmlcommon::add_breadcrumb({
393: # 'text' => 'Problem Editing', # 'Problem Testing'
394: # 'href' => '',
395: # });
1.460 droeschl 396: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 397: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 398: }
1.272 albertel 399: } elsif (!defined($found{'body'})) {
1.343 albertel 400: my %add_entries;
1.159 albertel 401: my $background=&Apache::lonxml::get_param('background',$parstack,
402: $safeeval);
1.343 albertel 403: if ($background ne '' ) {
404: $add_entries{'background'} = $background;
405: }
1.344 albertel 406:
1.290 albertel 407: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
408: $safeeval);
1.446 bisitz 409: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 410:
1.446 bisitz 411: $body_args{'bgcolor'} = $bgcolor;
412: # $body_args{'no_title'} = 1;
413: $body_args{'force_register'} = 1;
414: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 415: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 416: $body_args{'only_body'} = 1;
417: }
1.344 albertel 418: }
1.365 albertel 419: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 420: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
421: \%body_args);
1.446 bisitz 422: $page_start .= $pageheader;
1.462 raeburn 423: if (!defined($found{'body'})
424: && $env{'request.state'} ne 'construct'
425: && ($target eq 'web' || $target eq 'webgrade')) {
426:
427: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
428: if ($symb eq '' && !$publicuser) {
429: $page_start .= '<p class="LC_info">'
430: .&mt('Browsing resource, all submissions are temporary.')
431: .'</p>';
1.457 bisitz 432: }
1.344 albertel 433: }
434:
1.409 albertel 435: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 436: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 437: }
438: my $form_tag_start;
439: if (!defined($found{'form'})) {
1.337 albertel 440: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 441: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 442: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 443: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 444: $form_tag_start.=$uri.'" ';
445: if ($target eq 'edit') {
446: $form_tag_start.=&Apache::edit::form_change_detection();
447: }
1.493 raeburn 448: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
449: my ($path,$multiresp) =
450: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 451: if (($is_task) || ($needs_upload)) {
452: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 453: }
1.368 albertel 454: $form_tag_start.='>'."\n";
1.355 albertel 455:
456: my $symb=&Apache::lonnet::symbread();
457: if ($symb =~ /\S/) {
458: $symb=
459: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
460: $form_tag_start.=
1.368 albertel 461: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 462: }
1.159 albertel 463: }
1.343 albertel 464: return ($page_start,$form_tag_start);
1.105 albertel 465: }
466:
1.141 matthew 467: #use Time::HiRes();
1.105 albertel 468: sub get_resource_name {
1.159 albertel 469: my ($parstack,$safeeval)=@_;
1.388 foxr 470: my $name;
1.204 albertel 471: if (defined($Apache::lonhomework::name)) {
1.388 foxr 472: $name = $Apache::lonhomework::name;
473: } else {
474: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 475: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 476: if ($name eq '') {
477: $name=&Apache::lonnet::EXT('resource.title');
478: if ($name eq 'con_lost') { $name = ''; }
479: }
480: if ($name!~/\S+/) {
481: $name=$env{'request.uri'};
482: $name=~s-.*/([^/]+)$-$1-;
483: }
484: # The name has had html tags escaped:
485:
486: $name=~s/</</gs;
487: $name=~s/>/>/gs;
488:
489: $Apache::lonhomework::name=$name;
1.204 albertel 490: }
1.159 albertel 491: return $name;
1.105 albertel 492: }
493:
494: sub setup_rndseed {
1.479 raeburn 495: my ($safeeval,$target)=@_;
1.367 albertel 496: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 497: my ($questiontype,$set_safespace,$rndseed);
498: if ($target eq 'analyze') {
499: $questiontype = $env{'form.grade_questiontype'};
500: }
501: unless (defined($questiontype)) {
502: $questiontype = $Apache::lonhomework::type;
503: }
1.333 albertel 504: if ($env{'request.state'} eq "construct"
505: || $symb eq ''
506: || $Apache::lonhomework::type eq 'practice'
507: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 508: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 509: ['rndseed']);
1.284 albertel 510: $rndseed=$env{'form.rndseed'};
1.159 albertel 511: if (!$rndseed) {
1.162 albertel 512: $rndseed=$Apache::lonhomework::history{'rndseed'};
513: if (!$rndseed) {
514: $rndseed=time;
515: }
1.284 albertel 516: $env{'form.rndseed'}=$rndseed;
1.162 albertel 517: }
1.479 raeburn 518: if (($env{'request.state'} eq "construct") &&
519: ($Apache::lonhomework::type eq 'randomizetry')) {
520: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
521: if ($tries) {
522: $rndseed += $tries;
523: }
1.480 raeburn 524: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 525: }
1.374 albertel 526: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
527: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 528: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 529: srand(time);
530: $rndseed=int(rand(2100000000));
1.284 albertel 531: $env{'form.rndseed'}=$rndseed;
532: delete($env{'form.resetdata'});
533: delete($env{'form.newrandomization'});
1.159 albertel 534: }
1.488 www 535: $rndseed=~s/\,/\:/g;
536: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 537: if (defined($rndseed)) {
538: my ($c1,$c2)=split(/\:/,$rndseed);
539: unless ($c2) { $c2=0; }
540: unless (($c1==int($c1)) && ($c2==int($c2))) {
541: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
542: }
1.187 albertel 543: }
1.247 albertel 544: if ($Apache::lonhomework::history{'resource.CODE'}) {
545: $rndseed=&Apache::lonnet::rndseed();
546: }
1.479 raeburn 547: $set_safespace = 1;
548: } elsif ($questiontype eq 'randomizetry') {
549: if ($target eq 'analyze') {
550: if (defined($env{'form.grade_rndseed'})) {
551: $rndseed = $env{'form.grade_rndseed'};
552: }
553: }
554: unless (($target eq 'analyze') && (defined($rndseed))) {
555: $rndseed=&Apache::lonnet::rndseed();
556: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
557: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
558: $curr_try ++;
559: }
560: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
561: $rndseed = $1;
562: }
563: if ($curr_try) {
564: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
565: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
566: my $inc = int(($curr_try-1)/$reqtries);
567: $rndseed += $inc;
568: } else {
569: $rndseed += $curr_try;
570: }
571: }
572: }
573: $set_safespace = 1;
574: }
575: if ($set_safespace) {
576: if ($safeeval) {
577: &Apache::lonxml::debug("Setting rndseed to $rndseed");
578: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
579: }
580: }
581: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
582: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 583: }
584: return $rndseed;
1.105 albertel 585: }
586:
1.268 albertel 587: sub remember_problem_state {
588: return '
1.284 albertel 589: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
590: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
591: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 592: }
593:
1.487 www 594: sub problem_edit_action_button {
595: my ($name,$action,$accesskey,$text,$flag)=@_;
596: my $actionscript="setmode(this.form,'$action')";
597: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
598: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
599: }
600:
1.423 www 601: sub problem_edit_buttons {
1.487 www 602: my ($mode)=@_;
603: # Buttons that do not save
604: my $result='<div class="LC_edit_problem_discards">'.
605: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
606: if ($mode eq 'editxml') {
607: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
608: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
609: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
610: } else {
611: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
612: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
613: }
614: $result.="\n</div>";
615: # Buttons that save
616: $result.='<div class="LC_edit_problem_saves">';
617: if ($mode eq 'editxml') {
618: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
619: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
620: } else {
621: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
622: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
623: }
624: $result.="\n</div>\n";
625: return $result;
1.423 www 626: }
627:
628: sub problem_edit_header {
1.487 www 629: return '<input type="hidden" name="submitted" value="edit" />'.
630: &remember_problem_state('edit').'
1.423 www 631: <div class="LC_edit_problem_header">
632: <div class="LC_edit_problem_header_title">
633: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
634: </div>'.
1.487 www 635: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 636: &problem_edit_buttons().'
1.459 bisitz 637: <hr style="clear:both;" />
1.409 albertel 638: '.&Apache::lonxml::message_location().'
1.408 albertel 639: </div>
640: '.
1.458 bisitz 641: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 642: }
643:
644: sub problem_edit_footer {
1.412 albertel 645: return '</td></tr></table><br />
646: <div class="LC_edit_problem_footer">
1.453 bisitz 647: <hr />'.
1.423 www 648: &problem_edit_buttons().'
1.459 bisitz 649: <hr style="clear:both;" />
1.412 albertel 650: </div>
651: '.
1.342 albertel 652: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 653: }
654:
1.235 albertel 655: sub option {
656: my ($value,$name) = @_;
657: my $result ="<option value='".$value."' ";
1.284 albertel 658: if ($env{'form.'.$name} eq $value) {
1.235 albertel 659: $result.=" selected='on' ";
660: }
661: $result.='>';
662: return $result;
663: }
664:
1.105 albertel 665: sub problem_web_to_edit_header {
1.159 albertel 666: my ($rndseed)=@_;
1.406 albertel 667: my $result .= '<div class="LC_edit_problem_header">';
668:
669: if (!$Apache::lonhomework::parsing_a_task) {
670: $result .=
671: '<div class="LC_edit_problem_header_title">'.
672: &mt('Problem Testing').
673: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
674: '</div>';
675: } else {
676: $result .=
677: '<div class="LC_edit_problem_header_title">'.
678: &mt('Task Testing').
679: '</div>';
680: }
681:
1.315 albertel 682: my $show_all_foils_text =
683: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 684: &mt('Show All Instances')
685: : &mt('Show All Foils');
1.315 albertel 686:
1.452 bisitz 687: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
688: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 689: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 690: $show_all.= ' /> '.$show_all_foils_text
691: .'</label></span>';
1.406 albertel 692:
693:
1.384 albertel 694:
1.406 albertel 695: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 696: if (!$Apache::lonhomework::parsing_a_task) {
697: $result.="
1.406 albertel 698: <div class='LC_edit_problem_header_row1'>
699: <span class=\"LC_nobreak\">
1.405 albertel 700: ".&mt("Problem Status:")."
1.235 albertel 701: <select name='problemstate'>
1.270 albertel 702: <option value=''></option>
1.235 albertel 703: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
704: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
705: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
706: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
707: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
708: </select>
1.406 albertel 709: </span>
710: <span class=\"LC_nobreak\">
1.405 albertel 711: ".&mt("Problem Type:")."
1.235 albertel 712: <select name='problemtype'>
1.270 albertel 713: <option value=''></option>
1.242 albertel 714: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 715: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 716: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 717: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
718: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
719: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 720: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 721: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 722: </select>
1.406 albertel 723: </span>
724: $show_all
725: </div>
726: <div class='LC_edit_problem_header_row2'>
727: <span class=\"LC_nobreak\">
1.405 albertel 728: ".&mt("Feedback Mode:")."
1.235 albertel 729: <select name='problemstatus'>
730: <option value=''></option>
1.242 albertel 731: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 732: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
733: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 734: </select>
1.406 albertel 735: </span>
736: ";
737:
1.376 albertel 738: } elsif ($Apache::lonhomework::parsing_a_task) {
739: $result.="
1.406 albertel 740: <div class='LC_edit_problem_header_row1'>
741: <span class=\"LC_nobreak\">
1.405 albertel 742: ".&mt("Problem Status:")."
1.376 albertel 743: <select name='problemstate'>
744: <option value=''></option>
745: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
746: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
747: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
748: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
749: </select>
1.406 albertel 750: </span>
751: $show_all
752: ";
753: }
754: $result.='
755: <span class="LC_nobreak">
756: '.&mt('Apply style file: ').'
757: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
758: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
759: </span>
1.422 www 760: </div>
761: <div class="LC_edit_problem_header_row1">'.
762: &Apache::lonxml::renderingoptions().'
1.406 albertel 763: </div>
764: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
765: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
766: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
767: </div>
1.453 bisitz 768: <hr />
1.406 albertel 769: <div class="LC_edit_problem_header_randomize_row">
770: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
771: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 772: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 773: $rndseed.'"
774: onchange="javascript:document.lonhomework.changerandseed.click()" />';
775:
776: if (!$Apache::lonhomework::parsing_a_task) {
777: my $numtoanalyze=$env{'form.numtoanalyze'};
778: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 779: $result .= '<span class="LC_nobreak">'.
780: &mt('[_1] for [_2] versions.',
1.416 raeburn 781: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 782: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
783: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 784: $numtoanalyze.'" size="5" />').
785: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
786: '</span>';
787:
1.313 albertel 788: }
1.406 albertel 789:
790: $result.='
791: </div>
1.453 bisitz 792: <hr />
1.447 bisitz 793: <div>';
1.416 raeburn 794: $result.='<input type="hidden" name="problemmode" value="view" />';
795: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
796: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
797: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
798: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 799: $result.='
800: </div>
1.453 bisitz 801: <hr />
1.409 albertel 802: '.&Apache::lonxml::message_location().'
1.406 albertel 803: </div>';
1.159 albertel 804: return $result;
1.48 albertel 805: }
806:
1.65 albertel 807: sub initialize_storage {
1.357 albertel 808: my ($given_symb) = @_;
1.353 albertel 809: undef(%Apache::lonhomework::results);
810: undef(%Apache::lonhomework::history);
1.357 albertel 811: my ($symb,$courseid,$domain,$name) =
1.367 albertel 812: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 813:
814: # anonymous users (CODEd exams) have no data
815: if ($name eq 'anonymous'
816: && !defined($domain)) {
817: return;
818: }
819:
1.333 albertel 820: if ($env{'request.state'} eq 'construct'
821: || $symb eq ''
822: || $Apache::lonhomework::type eq 'practice') {
823:
824: my $namespace = $symb || $env{'request.uri'};
825: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 826: ($env{'form.resetdata'} eq &mt('New Problem Variation')
827: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 828: $env{'form.newrandomization'} eq &mt('New Randomization')) {
829: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
830: &Apache::lonxml::debug("Attempt reset");
831: }
1.159 albertel 832: %Apache::lonhomework::history=
1.333 albertel 833: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 834: my ($temp)=keys %Apache::lonhomework::history ;
835: &Apache::lonxml::debug("Return message of $temp");
836: } else {
837: %Apache::lonhomework::history=
838: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
839: }
1.353 albertel 840:
1.159 albertel 841: #ignore error conditions
1.67 albertel 842: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 843: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 844: }
845:
1.435 jms 846: =pod
847:
848: =item finalize_storage()
849:
850: Stores away the result has to a student's environment
851: checks form.grade_ for specific values, other wises stores
852: to the running users environment
853: Will increment totals for attempts, students, and corrects
854: if running user has student role.
855:
856: =cut
857:
858:
1.65 albertel 859: sub finalize_storage {
1.357 albertel 860: my ($given_symb) = @_;
1.159 albertel 861: my $result;
1.289 albertel 862: if (%Apache::lonhomework::results) {
1.323 albertel 863: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
864: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 865: my ($symb,$courseid,$domain,$name) =
1.367 albertel 866: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 867: if ($env{'request.state'} eq 'construct'
868: || $symb eq ''
869: || $Apache::lonhomework::type eq 'practice') {
870: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 871: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 872: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 873: $namespace,'',$domain,$name);
1.159 albertel 874: &Apache::lonxml::debug('Construct Store return message:'.$result);
875: } else {
876: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
877: $symb,$courseid,$domain,$name);
878: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 879: &store_aggregates($symb,$courseid);
1.159 albertel 880: }
1.323 albertel 881: } else {
882: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 883: }
1.159 albertel 884: return $result;
1.65 albertel 885: }
886:
1.435 jms 887: =pod
888:
889: item store_aggregates()
890:
891: Sends hash of values to be incremented in nohist_resourcetracker.db
892: for the course. Increments total number of attempts, unique students
893: and corrects for each part for an instance of a problem, as appropriate.
894:
895: =cut
896:
1.285 raeburn 897: sub store_aggregates {
898: my ($symb,$courseid) = @_;
1.479 raeburn 899: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 900: my @parts;
1.288 albertel 901: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
902: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 903: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 904: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 905: push(@parts, $1);
1.285 raeburn 906: }
907: }
1.286 albertel 908: foreach my $part (@parts) {
1.470 raeburn 909: if ($env{'request.role'} =~/^st/) {
910: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
911: eq 'APPROX_ANS' ||
912: $Apache::lonhomework::results{'resource.'.$part.'.award'}
913: eq 'EXACT_ANS') {
914: $aggregate{$symb."\0".$part."\0correct"} = 1;
915: }
916: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
917: $aggregate{$symb."\0".$part."\0users"} = 1;
918: } else {
919: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
920: if ($last_reset) {
921: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
922: $aggregate{$symb."\0".$part."\0users"} = 1;
923: }
924: }
925: }
926: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 927: }
1.470 raeburn 928: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 929: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
930: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
931: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
932: $randtrycounter{$symb."\0".$part} = 1;
933: } else {
934: $anoncounter{$symb."\0".$part} = 1;
935: }
1.470 raeburn 936: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
937: if ($needsrelease) {
938: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
939: if ($curr_required eq '') {
1.471 raeburn 940: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 941: } else {
942: my ($currmajor,$currminor) = split(/\./,$curr_required);
943: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
944: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 945: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 946: }
1.292 raeburn 947: }
948: }
1.285 raeburn 949: }
950: }
1.292 raeburn 951: if (keys (%aggregate) > 0) {
1.289 albertel 952: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 953: $cdomain,$cname);
954: }
1.472 raeburn 955: if (keys(%anoncounter) > 0) {
1.481 raeburn 956: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
957: $cdomain,$cname);
1.472 raeburn 958: }
1.479 raeburn 959: if (keys(%randtrycounter) > 0) {
1.481 raeburn 960: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
961: $cdomain,$cname);
1.479 raeburn 962: }
1.292 raeburn 963: }
1.289 albertel 964:
1.65 albertel 965: sub checkout_msg {
1.211 albertel 966: my %lt=&Apache::lonlocal::texthash(
967: 'resource'=>'The resource needs to be checked out',
968: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
969: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
970: 'checkout'=>'Check out Exam for Viewing',
971: 'checkout?'=>'Check out Exam?');
1.352 albertel 972: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 973: return (<<ENDCHECKOUT);
1.211 albertel 974: <h2>$lt{'resource'}</h2>
975: <p>$lt{'id_expln'}</p>
1.449 bisitz 976: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 977: <form name="checkout" method="post" action="$uri">
1.91 albertel 978: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 979: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 980: </form>
981: ENDCHECKOUT
982: }
983:
1.252 albertel 984: sub firstaccess_msg {
1.253 albertel 985: my ($time,$symb)=@_;
1.414 albertel 986: my $result;
987: my @interval=&Apache::lonnet::EXT("resource.0.interval");
988: if ($interval[1] eq 'map') {
989: my ($map)=&Apache::lonnet::decode_symb($symb);
990: my $foldertitle=&Apache::lonnet::gettitle($map);
991:
992: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 993: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
994: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
995: ,$foldertitle,$time)."</p>";
1.414 albertel 996: } elsif ($interval[1] eq 'course') {
997: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 998: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 999: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1000: ,$course,$time)."</p>";
1.414 albertel 1001: } else {
1002: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1003: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1004: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1005: ,$title,$time)."</p>";
1.414 albertel 1006: }
1.352 albertel 1007: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1008: my $buttontext = &mt('Show Resource');
1009: my $timertext = &mt('Start Timer?');
1.414 albertel 1010: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1011: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1012: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 1013: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1014: </form>
1015: ENDCHECKOUT
1.414 albertel 1016: return $result;
1.252 albertel 1017: }
1018:
1.204 albertel 1019: sub init_problem_globals {
1020: my ($type)=@_;
1021: #initialize globals
1.308 foxr 1022: # For problems, we start out in part 0 (outside a <part> tag).
1023: # and part 0 is used to describe the main body of the <problem>
1024: #
1.204 albertel 1025: if ($type eq 'problem') {
1026: $Apache::inputtags::part='0';
1027: @Apache::inputtags::partlist=('0');
1.405 albertel 1028: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1029: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1030:
1.266 albertel 1031: } elsif ($type eq 'library') {
1.204 albertel 1032: $Apache::inputtags::part='';
1033: @Apache::inputtags::partlist=();
1.405 albertel 1034: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1035: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1036:
1.304 albertel 1037: } elsif ($type eq 'Task') {
1038: $Apache::inputtags::part='0';
1039: @Apache::inputtags::partlist=('0');
1.405 albertel 1040: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1041: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1042: }
1.477 www 1043: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1044: @Apache::inputtags::responselist = ();
1045: @Apache::inputtags::importlist = ();
1046: @Apache::inputtags::previous=();
1047: @Apache::inputtags::previous_version=();
1048: $Apache::structuretags::printanswer='No';
1049: @Apache::structuretags::whileconds=();
1050: @Apache::structuretags::whilebody=();
1051: @Apache::structuretags::whileline=();
1052: $Apache::lonhomework::scantronmode=0;
1053: undef($Apache::lonhomework::name);
1.358 albertel 1054: undef($Apache::lonhomework::default_type);
1055: undef($Apache::lonhomework::type);
1.204 albertel 1056: }
1057:
1058: sub reset_problem_globals {
1059: my ($type)=@_;
1060: undef(%Apache::lonhomework::history);
1061: undef(%Apache::lonhomework::results);
1062: undef($Apache::inputtags::part);
1.498 raeburn 1063: if ($type eq 'Task') {
1064: undef($Apache::inputtags::slot_name);
1065: }
1.208 albertel 1066: #don't undef this, lonhomework.pm takes care of this, we use this to
1067: #detect if we try to do 2 problems in one file
1068: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1069: undef($Apache::lonhomework::name);
1.358 albertel 1070: undef($Apache::lonhomework::default_type);
1071: undef($Apache::lonhomework::type);
1072: undef($Apache::lonhomework::scantronmode);
1073: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1074: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1075: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1076: }
1077:
1.241 albertel 1078: sub set_problem_state {
1.240 albertel 1079: my ($part)=@_;
1.284 albertel 1080: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1081: $Apache::lonhomework::history{"resource.$part.solved"}=
1082: 'correct_by_student';
1083: }
1084: }
1085:
1.241 albertel 1086: sub get_problem_status {
1087: my ($part)=@_;
1.267 albertel 1088: my $problem_status;
1.284 albertel 1089: if ($env{'request.state'} eq 'construct' &&
1090: defined($env{'form.problemstatus'})) {
1091: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1092: } else {
1093: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1094: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1095: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1096: }
1097: return $problem_status;
1098: }
1099:
1.9 albertel 1100: sub start_problem {
1.326 albertel 1101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1102:
1.311 foxr 1103: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1104: if (!$Apache::lonxml::metamode) {
1105: &Apache::lonxml::startredirection();
1106: }
1.311 foxr 1107:
1.308 foxr 1108: # Problems don't nest and we don't allow more than one <problem> in
1109: # a .problem file.
1110: #
1.184 albertel 1111: if ( $Apache::inputtags::part ne '' ||
1112: $Apache::lonhomework::parsing_a_problem) {
1113: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1114: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1115: return '';
1116: }
1.184 albertel 1117:
1118: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1119: &init_problem_globals('problem');
1.166 albertel 1120:
1.284 albertel 1121: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1122: $Apache::lonhomework::scantronmode=1;
1123: }
1.161 albertel 1124:
1.159 albertel 1125: if ($target ne 'analyze') {
1.415 raeburn 1126: my $type = &Apache::lonnet::EXT('resource.0.type');
1127: $Apache::lonhomework::type=$type;
1.284 albertel 1128: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1129: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1130: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1131: }
1.332 albertel 1132: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1133: }
1.164 albertel 1134: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1135: my $uri=$env{'request.uri'};
1.159 albertel 1136: if ($uri=~/\.(\w+)$/) {
1137: $Apache::lonhomework::type=$1;
1138: &Apache::lonxml::debug("Using type of $1");
1139: } else {
1140: $Apache::lonhomework::type='problem';
1141: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1142: }
1.87 albertel 1143: }
1.301 albertel 1144: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1145:
1.363 albertel 1146: &initialize_storage();
1.389 albertel 1147: if ($target ne 'analyze'
1148: && $env{'request.state'} eq 'construct') {
1149: &set_problem_state('0');
1150: }
1151:
1.366 albertel 1152: if ($target eq 'web') {
1153: &Apache::lonxml::debug(" grading history ");
1154: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1155: }
1.363 albertel 1156:
1.159 albertel 1157: #added vars to the scripting enviroment
1.213 albertel 1158: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1159: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1160: &Apache::run::run($expression,$safeeval);
1.159 albertel 1161: my $status;
1162: my $accessmsg;
1163:
1.343 albertel 1164: my $name= &get_resource_name($parstack,$safeeval);
1.506 ! raeburn 1165: my ($result,$form_tag_start,$slot_name,$slot);
! 1166:
! 1167: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1168: $target eq 'tex') {
! 1169: if ($env{'form.markaccess'}) {
! 1170: my @interval=&Apache::lonnet::EXT("resource.0.interval");
! 1171: &Apache::lonnet::set_first_access($interval[1]);
! 1172: }
! 1173:
! 1174: ($status,$accessmsg,$slot_name,$slot) =
! 1175: &Apache::lonhomework::check_slot_access('0','problem');
! 1176: push (@Apache::inputtags::status,$status);
! 1177: }
! 1178:
1.354 albertel 1179: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1180: || $target eq 'edit') {
1.350 albertel 1181: ($result,$form_tag_start) =
1182: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1183: $name);
1184: }
1185:
1.284 albertel 1186: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1187:
1.479 raeburn 1188: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1189: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1190: $target eq 'tex') {
1.479 raeburn 1191:
1.506 ! raeburn 1192: if ($status eq 'CAN_ANSWER') {
! 1193: my $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
! 1194: my $time_left = $resource_due - time();
! 1195: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
! 1196: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
! 1197: }
! 1198: }
1.479 raeburn 1199:
1.159 albertel 1200: #handle rand seed in construction space
1.479 raeburn 1201: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1202: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1203:
1.333 albertel 1204: if ($env{'request.state'} ne "construct" &&
1205: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1206: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1207: $rndseed.'" />'.
1208: '<input type="submit" name="resetdata"
1209: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1210: if (exists($env{'form.username'})) {
1211: $form_tag_start.=
1.164 albertel 1212: '<input type="hidden" name="username"
1.284 albertel 1213: value="'.$env{'form.username'}.'" />';
1.334 albertel 1214: }
1.462 raeburn 1215: if ($env{'request.role.adv'}) {
1216: $form_tag_start.= ' <label class="LC_nobreak">'
1217: .'<input type="checkbox" name="showallfoils"';
1218: if (defined($env{'form.showallfoils'})) {
1219: $form_tag_start.=' checked="checked"';
1220: }
1221: $form_tag_start.= ' /> '
1222: .&mt('Show All Foils')
1223: .'</label>';
1224: }
1.417 www 1225: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1226: $form_tag_start.=&practice_problem_header();
1.417 www 1227: }
1.462 raeburn 1228: $form_tag_start.='<hr />';
1.479 raeburn 1229: } elsif (($env{'request.state'} ne "construct") &&
1230: ($Apache::lonhomework::type eq 'randomizetry') &&
1231: ($status eq 'CAN_ANSWER')) {
1232: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1233: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1234: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1235: }
1.324 albertel 1236:
1.159 albertel 1237: my $expression='$external::datestatus="'.$status.'";';
1238: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1239: &Apache::run::run($expression,$safeeval);
1240: &Apache::lonxml::debug("Got $status");
1.324 albertel 1241:
1.159 albertel 1242: if (( $status eq 'CLOSED' ) ||
1243: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1244: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1245: ( $status eq 'BANNED') ||
1.216 albertel 1246: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1247: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1248: ( $status eq 'NOTRESERVABLE') ||
1249: ( $status eq 'RESERVABLE') ||
1250: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1251: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1252: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1253: $style);
1.159 albertel 1254: if ( $target eq "web" ) {
1.343 albertel 1255: my $msg;
1.159 albertel 1256: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1257: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1258: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1259: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1260: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1261: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1262: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1263: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1264: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1265: }
1.216 albertel 1266: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1267: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1268: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1269: $msg.=&checkout_msg();
1.252 albertel 1270: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1271: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1272: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1273: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1274: } elsif ($status eq 'RESERVABLE') {
1275: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1276: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1277: '<br />'.
1278: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1279: } elsif ($status eq 'RESERVABLE_LATER') {
1280: $msg.=&mt('Window to make a reservation will open [_1].',
1281: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1282: } elsif ($status eq 'NOTRESERVABLE') {
1283: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1284: }
1285: $result.=$msg.'<br />';
1286: } elsif ($target eq 'tex') {
1.332 albertel 1287: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1288: : '\begin{minipage}{\textwidth}';
1.443 foxr 1289: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1290: $startminipage.'\vskip 0 mm';
1.159 albertel 1291: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1292: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1293: } else {
1.211 albertel 1294: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1295: }
1296: }
1.324 albertel 1297: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1298: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1299: $style);
1.324 albertel 1300: if ($target eq 'web') {
1.375 albertel 1301: $result .=
1302: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1303: } elsif ($target eq 'grade') {
1304: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1305: 'problem');
1306: }
1.159 albertel 1307: } elsif ($target eq 'web') {
1.360 albertel 1308: if ($status eq 'CAN_ANSWER'
1309: && $slot_name ne ''
1310: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1311: # unproctored slot access, self checkin
1312: &Apache::bridgetask::check_in('problem',undef,undef,
1313: $slot_name);
1314: }
1.368 albertel 1315: $result.="\n $form_tag_start \t".
1.227 albertel 1316: '<input type="hidden" name="submitted" value="yes" />';
1317: # create a page header and exit
1.284 albertel 1318: if ($env{'request.state'} eq "construct") {
1319: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1320: if ($Apache::lonhomework::type eq 'practice') {
1321: $result.= '<input type="submit" name="resetdata" '.
1322: 'value="'.&mt('New Problem Variation').'" />'.
1323: &practice_problem_header().'<hr />';
1324: }
1.227 albertel 1325: }
1326: # if we are viewing someone else preserve that info
1.284 albertel 1327: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1328: foreach my $field ('symb','courseid','domain','username') {
1329: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1330: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1331: }
1.479 raeburn 1332: foreach my $field ('trial','questiontype') {
1333: if ($env{"form.grade_$field"} ne '') {
1334: $result .= '<input type="hidden" name="grade_'.$field.
1335: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1336: }
1337: }
1.159 albertel 1338: }
1.490 raeburn 1339: if ($env{'form.grade_imsexport'}) {
1340: $result = '';
1341: }
1.159 albertel 1342: } elsif ($target eq 'tex') {
1.319 foxr 1343: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1344: $result .= &select_metadata_hyphenation();
1345:
1.319 foxr 1346:
1.99 sakharuk 1347: }
1.159 albertel 1348: } elsif ($target eq 'edit') {
1.343 albertel 1349: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1350: $Apache::lonxml::warnings_error_header=
1351: &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 1352: my $temp=&Apache::edit::insertlist($target,$token);
1353: $result.=$temp;
1354: } elsif ($target eq 'modified') {
1355: $result=$token->[4];
1356: } else {
1357: # page_start returned a starting result, delete it if we don't need it
1358: $result = '';
1.99 sakharuk 1359: }
1.159 albertel 1360: return $result;
1.9 albertel 1361: }
1362:
1363: sub end_problem {
1.159 albertel 1364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1365: my $result;
1.310 foxr 1366:
1.321 albertel 1367: if (!$Apache::lonxml::metamode) {
1368: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1369: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1370: }
1.319 foxr 1371:
1372: if ($target eq 'tex') {
1.321 albertel 1373: # Figure out the front matter and replace the
1374: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1375: # this in end_problem because whether or not we display due
1376: # dates depends on whether due dates have already been
1377: # displayed in the problem parts.
1378:
1.319 foxr 1379: my $frontmatter = '';
1380: my $startminipage = '';
1381: if (not $env{'form.problem_split'}=~/yes/) {
1382: $startminipage = '\begin{minipage}{\textwidth}';
1383: }
1384: my $id = $Apache::inputtags::part;
1385: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1386: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1387: my @packages = split /,/,$packages;
1388: my $allow_print_points = 0;
1389: foreach my $partial_key (@packages) {
1390: if ($partial_key=~m/^part_0$/) {
1391: $allow_print_points=1;
1392: }
1393: }
1394: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1395: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1396: if (lc($env{'course.'.$env{'request.course.id'}.
1397: '.disableexampointprint'}) eq 'yes') {
1398: $allow_print_points=0;
1399: }
1400: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1401: 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 1402: &clear_required_languages();
1.319 foxr 1403: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1404: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1405:
1406: # Figure out what the due date is and if we need to print
1407: # it in the problem header. We have been logging the
1408: # last due date written to file.
1409:
1410: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1411: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1412: my $duedate_text = &mt('Due date: [_1]'
1413: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1414: my $temp_file;
1415: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1416:
1417: # Figure out what the last printed due date is or set it
1418: # to the epoch if no duedates have been printed.
1419:
1420: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1421: if (-e $filename) {
1422: $temp_file = Apache::File->new($filename);
1423: my @due_file = <$temp_file>;
1424: $due_file_content = $due_file[$#due_file];
1425: chomp $due_file_content;
1426: }
1427:
1428: # We display the due date iff it is not the same as the last
1429: # duedate in problem header ($due_file_content), and
1430: # none of our parts displayed a duedate.
1431: #
1432: my $parts_with_displayduedate;
1433: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1434: $parts_with_displayduedate =
1435: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1436: } else {
1437: $parts_with_displayduedate = 0;
1438: }
1439: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1440: $temp_file = Apache::File->new('>'.$filename);
1441: print $temp_file "$duetime\n";
1442: if (not $env{'request.symb'} =~ m/\.page_/) {
1443: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1444: $frontmatter .= $begin_doc.
1.448 bisitz 1445: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1446: } else {
1447: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1448: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1449: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1450: }
1.319 foxr 1451: }
1452: } else {
1.448 bisitz 1453: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1454: }
1455: } else {
1456: if (not $env{'request.symb'} =~ m/\.page_/) {
1457: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1458: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1459: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1460: }
1.319 foxr 1461: } else {
1.381 albertel 1462: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1463: }
1464: }
1465: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1466: }
1467:
1.159 albertel 1468: my $status=$Apache::inputtags::status['-1'];
1469: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1470: $target eq 'tex') {
1.249 albertel 1471: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1472: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1473: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1474: &Apache::inputtags::grade;
1.324 albertel 1475: } elsif ($status eq 'NEEDS_CHECKIN') {
1476: # no need to grade, and don't want to hide data
1.249 albertel 1477: } else {
1478: # move any submission data to .hidden
1479: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1480: }
1.159 albertel 1481: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1482: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1483: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1484: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1485: # if part is zero, no <part>s existed, so we need show the current
1486: # grading status
1487: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1488: $result.= $gradestatus;
1489: }
1490: if (
1.284 albertel 1491: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1492: ($target eq 'answer') || ($target eq 'tex')
1493: ) {
1.490 raeburn 1494: if (($target ne 'tex') &&
1495: ($env{'form.answer_output_mode'} ne 'tex') &&
1496: (!$env{'form.grade_imsexport'})) {
1.254 www 1497: $result.="</form>";
1.159 albertel 1498: }
1499: if ($target eq 'web') {
1.346 albertel 1500: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1501: } elsif ($target eq 'tex') {
1.178 sakharuk 1502: my $endminipage = '';
1.284 albertel 1503: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1504: $endminipage = '\end{minipage}';
1505: }
1.284 albertel 1506: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1507: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1508: } else {
1.262 sakharuk 1509: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1510: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1511: $result .= $endminipage.'\end{document} ';
1512: } else {
1.382 albertel 1513: $result .= $endminipage;
1.262 sakharuk 1514: }
1.159 albertel 1515: }
1516: }
1517: }
1.476 www 1518: if ($target eq 'web') {
1519: $result.=&Apache::functionplotresponse::init_script();
1520: }
1.159 albertel 1521: if ($target eq 'grade') {
1522: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1523: &finalize_storage();
1524: }
1.284 albertel 1525: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1526: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1527: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1528: # normally we get it from above, but in CSTR
1.172 albertel 1529: # we always show answer mode too.
1.159 albertel 1530: }
1531: } elsif ($target eq 'meta') {
1532: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1533: @Apache::inputtags::response=();
1.159 albertel 1534: $result=&Apache::response::mandatory_part_meta;
1535: }
1.215 albertel 1536: $result.=&Apache::response::meta_part_order();
1.258 albertel 1537: $result.=&Apache::response::meta_response_order();
1.159 albertel 1538: } elsif ($target eq 'edit') {
1539: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1540: $result .= &problem_edit_footer();
1.320 albertel 1541: } elsif ($target eq 'modified') {
1542: $result .= $token->[2];
1.159 albertel 1543: }
1.155 albertel 1544:
1.284 albertel 1545: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1546: &Apache::inputtags::check_for_duplicate_ids();
1547: }
1.204 albertel 1548:
1549: &reset_problem_globals('problem');
1.159 albertel 1550:
1.502 foxr 1551: #
1552: # This shouild be just above the return so that the
1553: # time put in the javascript is as late as possible in the
1554: # computation:
1555: #
1556: if ($target eq 'web') {
1557: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1558: }
1.159 albertel 1559: return $result;
1.48 albertel 1560: }
1561:
1.108 albertel 1562:
1.48 albertel 1563: sub start_library {
1.159 albertel 1564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1565: my ($result,$form_tag_start);
1.371 albertel 1566: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1567: &init_problem_globals('library');
1568: $Apache::lonhomework::type='problem';
1569: }
1.159 albertel 1570: if ($target eq 'edit') {
1.343 albertel 1571: ($result,$form_tag_start)=
1572: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1573: 'Edit');
1574: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1575: my $temp=&Apache::edit::insertlist($target,$token);
1576: $result.=$temp;
1577: } elsif ($target eq 'modified') {
1578: $result=$token->[4];
1.340 albertel 1579: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1580: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1581: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1582: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1583: ($result,$form_tag_start)=
1584: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1585: $name);
1.479 raeburn 1586: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1587: $result.=" \n $form_tag_start".
1.159 albertel 1588: '<input type="hidden" name="submitted" value="yes" />';
1589: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1590: if ($Apache::lonhomework::type eq 'practice') {
1591: $result.= '<input type="submit" name="resetdata" '.
1592: 'value="'.&mt('New Problem Variation').'" />'.
1593: &practice_problem_header().'<hr />';
1594: }
1.159 albertel 1595: }
1596: return $result;
1.48 albertel 1597: }
1598:
1599: sub end_library {
1.159 albertel 1600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1601: my $result='';
1602: if ($target eq 'edit') {
1603: $result=&problem_edit_footer();
1.371 albertel 1604: } elsif ($target eq 'web'
1605: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1606: && $env{'request.state'} eq "construct") {
1.349 albertel 1607: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1608: }
1.371 albertel 1609: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1610: &reset_problem_globals('library');
1611: }
1.159 albertel 1612: return $result;
1.197 www 1613: }
1614:
1615: sub start_definetag {
1.326 albertel 1616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1617:
1618: my $result;
1619:
1620: my $name = $token->[2]->{'name'};
1.326 albertel 1621: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1622: if ($target eq 'web') {
1623: if ($name=~/^\//) {
1624: $result=
1625: '<br /><table class="LC_sty_end"><tr><th>'.
1626: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1627: } else {
1628: $result=
1629: '<br /><table class="LC_sty_begin"><tr><th>'.
1630: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1631: }
1632: $skip = &HTML::Entities::encode($skip, '<>&"');
1633: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1634: }
1635: return $result;
1636: }
1637:
1638: sub end_definetag {
1639: return '';
1.1 albertel 1640: }
1641:
1642: sub start_block {
1.201 albertel 1643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1644:
1645: my $result;
1.1 albertel 1646:
1.339 albertel 1647: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1648: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1649: my $code = $token->[2]->{'condition'};
1.385 albertel 1650: if (defined($code) && $code ne '') {
1.137 albertel 1651: if (!$Apache::lonxml::default_homework_loaded) {
1652: &Apache::lonxml::default_homework_load($safeeval);
1653: }
1.131 albertel 1654: $result = &Apache::run::run($code,$safeeval);
1655: &Apache::lonxml::debug("block :$code: returned :$result:");
1656: } else {
1657: $result='1';
1658: }
1659: if ( ! $result ) {
1.201 albertel 1660: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1661: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1662: }
1663: $result='';
1664: } elsif ($target eq 'edit') {
1665: $result .=&Apache::edit::tag_start($target,$token);
1666: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1667: $token,40);
1668: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1669: } elsif ($target eq 'modified') {
1670: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1671: $safeeval,'condition');
1672: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1673: }
1.131 albertel 1674: return $result;
1.1 albertel 1675: }
1676:
1677: sub end_block {
1.167 www 1678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1679: my $result;
1680: if ($target eq "edit") {
1681: $result.= &Apache::edit::tag_end($target,$token,'');
1682: }
1683: return $result;
1684: }
1.500 foxr 1685: #
1686: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1687: # ...
1688: # </languageblock>
1689: #
1690: # This declares the intent to provide content that can be rendered in the
1691: # set of languages in the include specificatino but not in the exclude
1692: # specification. If a currently preferred language is in the include list
1693: # the content in the <languageblock>...</languageblock> is rendered
1694: # If the currently preferred language is in the exclude list,
1695: # the content in the <languageblock>..></languageblock is not rendered.
1696: #
1697: # Pathalogical case handling:
1698: # - Include specified, without the preferred language but exclude specified
1699: # also without the preferred langauge results in rendering the block.
1700: # - Exclude specified without include and excluden not containing a
1701: # preferred language renders the block.
1702: # - Include and exclude both specifying the preferred language does not
1703: # render the block.
1704: # - If neither include/exclude is specified, the block gets rendered.
1705: #
1706: # This tag has no effect when target is in {edit, modified}
1707: #
1.167 www 1708: sub start_languageblock {
1.201 albertel 1709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1710:
1.500 foxr 1711: my $result = '';
1.167 www 1712:
1.339 albertel 1713: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1714: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1715: my $include = $token->[2]->{'include'};
1716: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1717: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1718:
1719: # This should not even happen, since we should at least have the server language
1720:
1721: if (!$preferred_languages[0]) {
1722: $preferred_languages[0]='en';
1723: }
1724:
1725: # Now loop over all languages in order of preference
1726:
1727: my $render;
1.398 www 1728: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1729:
1730: # If neither include/nor exlude is present the block is going
1731: # to get rendered.
1732:
1.399 www 1733: my $found=0;
1.500 foxr 1734: $render=1;
1735:
1736: # If include is specified, don't render the block
1737: # unless the preferred language is included in the set.
1738:
1.398 www 1739: if ($include) {
1.500 foxr 1740: $render=0;
1.398 www 1741: foreach my $included_language (split(/\,/,$include)) {
1742: if ($included_language eq $preferred_language) {
1.500 foxr 1743: $render=1;
1.399 www 1744: $found=1;
1.500 foxr 1745: last; # Only need to find the first.
1.398 www 1746: }
1747: }
1748: }
1.500 foxr 1749: # Do we have an exclude argument?
1750: # If so, and one of the languages matches a preferred language
1751: # inhibit rendering the block. Note that in the pathalogical case the
1752: # author has specified a preferred language in both the include and exclude
1753: # attribte exclude is preferred.
1754:
1.398 www 1755: if ($exclude) {
1.500 foxr 1756: $render=1;
1.398 www 1757: foreach my $excluded_language (split(/\,/,$exclude)) {
1758: if ($excluded_language eq $preferred_language) {
1.500 foxr 1759: $render=0;
1.399 www 1760: $found=1;
1.500 foxr 1761: last; # Only need to find the first.
1.398 www 1762: }
1763: }
1764: }
1.500 foxr 1765: if ($found) {
1766: last; # Done on any match of include or exclude.
1767: }
1.398 www 1768: }
1.500 foxr 1769: # If $render not true skip the entire block until </languageblock>
1770: #
1771:
1772: if ( ! $render ) {
1.201 albertel 1773: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1774: $style);
1775: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1776: }
1.500 foxr 1777: # If $render is true, we've not skipped the contents of the <languageglock>
1778: # and the normal loncapa processing flow will render it as a matter of course.
1779:
1.167 www 1780: } elsif ($target eq 'edit') {
1781: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1782: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1783: $token,40);
1.211 albertel 1784: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1785: $token,40);
1786: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1787: } elsif ($target eq 'modified') {
1788: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1789: $safeeval,'include',
1790: 'exclude');
1.167 www 1791: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1792: }
1793: return $result;
1794: }
1795:
1796: sub end_languageblock {
1.170 www 1797: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1798: my $result;
1.201 albertel 1799: if ($target eq "edit") {
1.170 www 1800: $result.= &Apache::edit::tag_end($target,$token,'');
1801: }
1802: return $result;
1803: }
1.500 foxr 1804: # languagblock specific tags:
1805: {
1806: # For chunks of a resource that has translations, this hash contains
1807: # the translations available indexed by language name.
1808: #
1809:
1810: my %available_texts;
1.170 www 1811:
1.500 foxr 1812: # <translated> starts a block of a resource that has multiple translations.
1813: # See the <lang> tag as well.
1814: # When </translated> is encountered if there is a translation for the
1815: # currently preferred language, that is rendered inthe web/tex/webgrade
1816: # targets. Otherwise, the default text is rendered.
1817: #
1818: # Note that <lang> is only registered for the duration of the
1819: # <translated>...</translated> block
1820: #
1821: # Pathalogical case handling:
1822: # - If there is no <lang> that specifies a 'default' and there is no
1823: # translation that matches a preferred language, nothing is rendered.
1824: # - Nested <translated>...</translated> might be linguistically supported by
1825: # XML due to the stack nature of tag registration(?) however the rendered
1826: # output will be incorrect because there is only one %available_texts
1827: # has and end_translated clears it.
1828: # - Material outside of a <lang>...</lang> block within the
1829: # <translated>...<translated> block won't render either e.g.:
1830: # <translated>
1831: # The following will be in your preferred langauge:
1832: # <lang which='en'>
1833: # This section in english
1834: # </lang>
1835: # <lang which='sgeiso'>
1836: # Hier es ist auf Deutsch.
1837: # </lang>
1838: # <lang which='sfriso'>
1839: # En Francais
1840: # </lang>
1841: # </translated>
1842: #
1843: # The introductory text prior to the first <lang> tag is not rendered.
1844: #
1.397 albertel 1845: sub start_translated {
1846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1847: &Apache::lonxml::register('Apache::structuretags',('lang'));
1848: undef(%available_texts);
1849: }
1850:
1851: sub end_translated {
1852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1853: my $result;
1854: #show the translation on viewable targets
1855: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1856: # or non-viewable targets, if it's embedded in something that
1857: # wants the output
1858: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1859: && &Apache::lonxml::in_redirection() ) ) {
1860: my @possibilities = keys(%available_texts);
1861: my $which =
1862: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1863: if ($target eq 'tex') {
1864: $result = &select_hyphenation($which);
1865: }
1866: $result .= $available_texts{$which};
1867: if ($target eq 'tex') {
1868: $result .= &select_metadata_hyphenation(); # Restore original language.
1869: }
1.397 albertel 1870: }
1871: undef(%available_texts);
1872: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1873: return $result;
1874: }
1875:
1.500 foxr 1876: # <lang [which='language-name'] [other='lang1,lang2...']>
1877: # Specifies that the block contained within it is a translation
1878: # for a specific language specified by the 'which' attribute. The
1879: # 'other' attribute can be used by itself or in conjunction with
1880: # which to specify this tag _may_ be used as a translation for some
1881: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1882: # specifying that the block provides a translation for US (primary)
1883: # Canadian, Australian and UK Englush.
1884: #
1885: # Comment: this seems a bit silly why not just support a list of languages
1886: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1887: #
1888: # Effect:
1889: # The material within the <lang>..</lang> block is stored in the
1890: # specified set of $available_texts hash entries, the appropriate one
1891: # is selected at </translated> time.
1892: #
1893: # Pathalogical case handling:
1894: # If a language occurs multiple times within a <translated> block,
1895: # only the last one is rendered e.g.:
1896: #
1897: # <translated>
1898: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1899: # Red green color blindness is quite common affecting about 7.8% of
1900: # the male population, but onloy about .65% of the female population.
1901: # </lang>
1902: # Red green colour blindness is quite common affecting about 7.8% of
1903: # the male population, but onloy about .65% of the female population.
1904: # <lang which='seniso', other='senisoCA,senisoAU'>
1905: # </translated>
1906: #
1907: # renders the correct spelling of color (colour) for people who have specified
1908: # a preferred language that is one of the British Commonwealth languages
1909: # even though those are also listed as valid selections for the US english
1910: # <lang> block.
1911: #
1.397 albertel 1912: sub start_lang {
1913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1914: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1915: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1916: &Apache::lonxml::startredirection();
1917: }
1918: return '';
1919: }
1920:
1921: sub end_lang {
1922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1923: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1924: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1925: my $result = &Apache::lonxml::endredirection();
1926: my $which = &Apache::lonxml::get_param('which',$parstack,
1927: $safeeval);
1.431 raeburn 1928: if ($which=~/\w/) {
1929: $available_texts{$which} = $result;
1930: }
1931: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1932: $safeeval);
1933: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1934: if ($language=~/\w/) {
1935: $available_texts{$language} = $result;
1936: }
1.427 bisitz 1937: }
1938:
1.397 albertel 1939: }
1940: return '';
1941: }
1.500 foxr 1942: } # end langauge block specific tags.
1943:
1.397 albertel 1944:
1.170 www 1945: sub start_instructorcomment {
1.201 albertel 1946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1947:
1948: my $result;
1949:
1.339 albertel 1950: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1951: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1952: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1953: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1954: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1955: $parser,$style);
1.170 www 1956: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1957: }
1958: $result='';
1959: } elsif ($target eq 'edit') {
1960: $result .=&Apache::edit::tag_start($target,$token);
1961: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1962: }
1963: return $result;
1964: }
1965:
1966: sub end_instructorcomment {
1.159 albertel 1967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1968: my $result;
1969: if ($target eq "edit") {
1970: $result.= &Apache::edit::tag_end($target,$token,'');
1971: }
1972: return $result;
1.4 tsai 1973: }
1974:
1975: sub start_while {
1.326 albertel 1976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1977:
1.160 albertel 1978: my $result;
1.339 albertel 1979: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1980: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1981: my $code = $token->[2]->{'condition'};
1.4 tsai 1982:
1.160 albertel 1983: push( @Apache::structuretags::whileconds, $code);
1984: if (!$Apache::lonxml::default_homework_loaded) {
1985: &Apache::lonxml::default_homework_load($safeeval);
1986: }
1987: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1988: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1989: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1990: push( @Apache::structuretags::whileline, $token->[5]);
1991: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1992: if ( $result ) {
1993: &Apache::lonxml::newparser($parser,\$bodytext);
1994: }
1995: } elsif ($target eq 'edit') {
1996: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1997: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1998: $token,40);
1999: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2000: } elsif ($target eq 'modified') {
2001: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2002: $safeeval,'condition');
2003: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2004: }
1.160 albertel 2005: return $result;
1.4 tsai 2006: }
2007:
2008: sub end_while {
1.159 albertel 2009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2010: my $result;
2011:
1.339 albertel 2012: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2013: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2014: my $code = pop(@Apache::structuretags::whileconds);
2015: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2016: my $line = pop(@Apache::structuretags::whileline);
2017: my $return = &Apache::run::run($code,$safeeval);
2018: my $starttime=time;
2019: my $error=0;
2020: while ($return) {
2021: if (time-$starttime >
2022: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2023: $return = 0; $error=1; next;
1.161 albertel 2024: }
2025: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2026: if ($target eq 'grade' || $target eq 'answer' ||
2027: $target eq 'analyze') {
2028: # grade/answer/analyze should produce no output but if we
2029: # are redirecting, the redirecter should know what to do
2030: # with the output
2031: if (!$Apache::lonxml::redirection) { undef($result); }
2032: }
1.161 albertel 2033: $return = &Apache::run::run($code,$safeeval);
2034: }
2035: if ($error) {
1.430 bisitz 2036: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 2037: }
2038: } elsif ($target eq "edit") {
2039: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2040: }
1.160 albertel 2041: return $result;
1.1 albertel 2042: }
1.6 tsai 2043:
1.160 albertel 2044: # <randomlist show="1">
1.6 tsai 2045: # <tag1>..</tag1>
2046: # <tag2>..</tag2>
2047: # <tag3>..</tag3>
1.160 albertel 2048: # ...
1.6 tsai 2049: # </randomlist>
2050: sub start_randomlist {
1.326 albertel 2051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2052: my $result;
1.339 albertel 2053: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2054: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2055: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2056: my $b_parser= HTML::LCParser->new(\$body);
2057: $b_parser->xml_mode(1);
2058: $b_parser->marked_sections(1);
1.159 albertel 2059: my $b_tok;
2060: my @randomlist;
2061: my $list_item;
2062: while($b_tok = $b_parser->get_token() ) {
2063: if($b_tok->[0] eq 'S') { # start tag
2064: # get content of the tag until matching end tag
2065: # get all text upto the matching tag
2066: # and push the content into @randomlist
2067: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2068: $b_parser);
2069: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2070: push(@randomlist,$list_item);
2071: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2072: # $list_item</b>";
2073: }
2074: if($b_tok->[0] eq 'T') { # text
2075: # what to do with text in between tags?
2076: # print "<b>TEXT $b_tok->[1]</b><br />";
2077: }
2078: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2079: # print "<b>END-TAG $b_tok->[1]</b><br />";
2080: # }
2081: }
1.303 albertel 2082: if (@randomlist) {
2083: my @idx_arr = (0 .. $#randomlist);
2084: &Apache::structuretags::shuffle(\@idx_arr);
2085: my $bodytext = '';
2086: my $show=$#randomlist;
2087: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2088: $showarg--;
2089: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2090: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2091: my @currlist;
2092: my $part = $Apache::inputtags::part;
2093: if ($part ne '') {
2094: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2095: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2096: if (!(grep(/^\Q$part\E$/,@currlist))) {
2097: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2098: }
2099: } else {
2100: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2101: }
2102: }
2103: }
1.303 albertel 2104: for(0 .. $show) {
2105: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2106: }
2107: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2108: }
2109: } elsif ($target eq 'edit' ) {
2110: $result .=&Apache::edit::tag_start($target,$token);
2111: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2112: $token,5);
2113: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2114: } elsif ($target eq 'modified' ) {
2115: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2116: $safeeval,'show');
2117: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2118: }
2119: return $result;
1.7 tsai 2120: }
2121:
2122: sub shuffle {
2123: my $a=shift;
2124: my $i;
1.303 albertel 2125: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2126: &Apache::response::pushrandomnumber();
1.159 albertel 2127: for($i=@$a;--$i;) {
2128: my $j=int(&Math::Random::random_uniform() * ($i+1));
2129: next if $i == $j;
2130: @$a[$i,$j] = @$a[$j,$i];
2131: }
1.251 albertel 2132: &Apache::response::poprandomnumber();
1.7 tsai 2133: }
1.6 tsai 2134: }
2135:
2136: sub end_randomlist {
1.159 albertel 2137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2138: my $result;
2139: if ($target eq 'edit' ) {
2140: $result=&Apache::edit::tag_end($target,$token,
2141: 'End Randomly Parsed Block');
2142: }
2143: return $result;
1.6 tsai 2144: }
2145:
1.283 albertel 2146: sub ordered_show_check {
2147: my $last_part=$Apache::inputtags::partlist[-2];
2148: my $in_order=
2149: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2150: my $in_order_show=1;
2151: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2152: $in_order_show=&Apache::response::check_status($last_part);
2153: }
2154: return $in_order_show;
2155: }
2156:
1.469 www 2157:
2158: sub start_startpartmarker {
2159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2160: my $result='';
2161: if ($target eq 'edit') {
2162: $result=&Apache::edit::tag_start($target,$token);
2163: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2164: $result.=&Apache::edit::end_table();
2165:
2166: }
2167: return $result;
2168: }
2169:
2170: sub end_startpartmarker {
2171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2172: my @result;
2173: if ($target eq 'edit') { $result[1]='no'; }
2174: return @result;
2175: }
2176:
2177: sub start_endpartmarker {
2178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2179: my $result='';
2180: if ($target eq 'edit') {
2181: $result=&Apache::edit::tag_start($target,$token);
2182: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2183: $result.=&Apache::edit::end_table();
2184:
2185: }
2186: return $result;
2187: }
2188:
2189: sub end_endpartmarker {
2190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2191: my @result;
2192: if ($target eq 'edit') { $result[1]='no'; }
2193: return @result;
2194: }
2195:
2196:
2197:
2198:
2199:
1.11 albertel 2200: sub start_part {
1.326 albertel 2201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2202: if (!$Apache::lonxml::metamode) {
2203: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2204: # duedates.
2205: }
1.159 albertel 2206: my $result='';
1.386 albertel 2207: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2208: $Apache::inputtags::part=$id;
1.177 albertel 2209: push(@Apache::inputtags::partlist,$id);
2210: @Apache::inputtags::response=();
1.159 albertel 2211: @Apache::inputtags::previous=();
2212: @Apache::inputtags::previous_version=();
1.405 albertel 2213: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2214: &Apache::response::reset_params();
2215:
1.159 albertel 2216: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2217: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2218: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2219: my $in_order_show=&ordered_show_check();
1.214 albertel 2220: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2221: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2222: &Apache::run::run($expression,$safeeval);
1.159 albertel 2223:
2224: if ($target eq 'meta') {
1.224 www 2225: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2226: return &Apache::response::mandatory_part_meta.
2227: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2228: } elsif ($target eq 'web' || $target eq 'grade' ||
2229: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2230: if ($hidden || !$in_order_show) {
1.326 albertel 2231: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2232: } else {
2233: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2234: push (@Apache::inputtags::status,$status);
2235: my $expression='$external::datestatus="'.$status.'";';
2236: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2237: &Apache::run::run($expression,$safeeval);
1.284 albertel 2238: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2239: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2240: }
1.216 albertel 2241: if (( $status eq 'CLOSED' ) ||
2242: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2243: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2244: ( $status eq 'BANNED') ||
2245: ( $status eq 'UNAVAILABLE') ||
2246: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2247: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2248: $style);
1.159 albertel 2249: if ( $target eq "web" ) {
1.211 albertel 2250: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2251: } elsif ( $target eq 'tex' ) {
1.284 albertel 2252: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2253: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2254: } else {
1.211 albertel 2255: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2256: }
1.159 albertel 2257: }
2258: } else {
2259: if ($target eq 'tex') {
1.284 albertel 2260: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2261: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2262: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2263: } else {
2264: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2265: }
1.195 sakharuk 2266: }
1.159 albertel 2267: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2268: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2269: my @allkeys = split /,/,$allkeys;
2270: my $allow_print_points = 0;
2271: foreach my $partial_key (@allkeys) {
1.230 albertel 2272: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2273: if ($1 ne '0') {$allow_print_points=1;}
2274: }
2275: }
1.275 albertel 2276: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2277: if (defined($maxtries) && $maxtries < 0) {
2278: $allow_print_points=0;
2279: }
1.302 albertel 2280: if (lc($env{'course.'.$env{'request.course.id'}.
2281: '.disableexampointprint'}) eq 'yes') {
2282: $allow_print_points=0;
2283: }
1.463 foxr 2284: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2285: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2286:
2287: }
1.233 www 2288: } elsif ($target eq 'web') {
1.479 raeburn 2289: if ($status eq 'CAN_ANSWER') {
2290: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2291: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2292: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2293: my $num = scalar(@Apache::inputtags::partlist)-1;
2294: if ($probrandomize eq 'randomizetry') {
2295: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2296: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2297: } else {
2298: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2299: if ($probrandtries ne $reqtries) {
2300: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2301: }
2302: }
2303: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2304: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2305: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2306: }
2307: }
1.475 raeburn 2308: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2309: }
2310: }
2311: }
2312: } elsif ($target eq 'edit') {
2313: $result.=&Apache::edit::tag_start($target,$token);
2314: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2315: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2316: ' '.
2317: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2318: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2319: } elsif ($target eq 'modified') {
2320: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2321: $safeeval,'id','display');
1.159 albertel 2322: if ($constructtag) {
1.225 albertel 2323: #limiting ids to only letters numbers, and space
1.224 www 2324: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2325: $result = &Apache::edit::rebuild_tag($token);
2326: }
2327: }
2328: return $result;
1.11 albertel 2329: }
2330:
2331: sub end_part {
1.159 albertel 2332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2333: &Apache::lonxml::debug("in end_part $target ");
2334: my $status=$Apache::inputtags::status['-1'];
2335: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2336: my $in_order_show=&ordered_show_check();
1.321 albertel 2337: my $result;
2338: if (!$Apache::lonxml::metamode) {
2339: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2340: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2341: }
1.312 albertel 2342: if ($target eq 'grade') {
1.249 albertel 2343: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2344: !$hidden && $in_order_show) {
1.311 foxr 2345: $result.=&Apache::inputtags::grade;
1.249 albertel 2346: } else {
2347: # move any submission data to .hidden
2348: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2349: }
1.283 albertel 2350: } elsif (($target eq 'web' || $target eq 'tex') &&
2351: !$hidden && $in_order_show) {
1.159 albertel 2352: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2353: $target);
1.490 raeburn 2354: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2355: ($env{'form.grade_imsexport'})) {
1.212 albertel 2356: $gradestatus='';
2357: }
1.311 foxr 2358: $result.=$gradestatus;
1.265 sakharuk 2359: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2360: } elsif ($target eq 'edit') {
1.311 foxr 2361: $result.=&Apache::edit::end_table();
1.322 albertel 2362: } elsif ($target eq 'modified') {
2363: $result .= $token->[2];
1.159 albertel 2364: }
2365: pop @Apache::inputtags::status;
2366: $Apache::inputtags::part='';
1.295 albertel 2367: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2368: return $result;
1.11 albertel 2369: }
1.1 albertel 2370:
1.25 albertel 2371: sub start_preduedate {
1.326 albertel 2372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2373: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2374: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2375: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2376: if (!$Apache::lonhomework::scantronmode &&
2377: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2378: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2379: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2380: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2381: }
1.24 albertel 2382: }
1.159 albertel 2383: return '';
1.24 albertel 2384: }
2385:
1.25 albertel 2386: sub end_preduedate {
1.159 albertel 2387: return '';
1.24 albertel 2388: }
2389:
1.369 foxr 2390: # In all the modes where <postanswerdate> text is
2391: # displayable, all we do is eat up the text between the start/stop
2392: # tags if the conditions are not right to display it.
1.25 albertel 2393: sub start_postanswerdate {
1.326 albertel 2394: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2395: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2396: &Apache::lonnet::allowed('pav',
2397: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2398: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2399: $target eq 'tex' ) {
1.300 albertel 2400: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2401: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2402: (($target eq 'tex') && !$pav)) {
1.326 albertel 2403: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2404: }
2405: }
2406: return '';
1.24 albertel 2407: }
2408:
1.25 albertel 2409: sub end_postanswerdate {
1.159 albertel 2410: return '';
1.24 albertel 2411: }
2412:
1.25 albertel 2413: sub start_notsolved {
1.326 albertel 2414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2415: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2416: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2417: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2418: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2419: if ($gradestatus =~ /^correct/ &&
2420: &Apache::response::show_answer()) {
1.159 albertel 2421: &Apache::lonxml::debug("skipping");
1.326 albertel 2422: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2423: }
1.24 albertel 2424: }
1.159 albertel 2425: return '';
1.24 albertel 2426: }
2427:
1.25 albertel 2428: sub end_notsolved {
1.159 albertel 2429: return '';
1.24 albertel 2430: }
2431:
2432: sub start_solved {
1.326 albertel 2433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2434: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2435: $target eq 'tex') {
2436: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2437: if ($gradestatus !~ /^correct/ ||
2438: !&Apache::response::show_answer()) {
1.326 albertel 2439: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2440: }
1.24 albertel 2441: }
1.159 albertel 2442: return '';
1.24 albertel 2443: }
2444:
2445: sub end_solved {
1.248 albertel 2446: return '';
2447: }
2448:
2449: sub start_problemtype {
1.326 albertel 2450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2451: my $result;
1.339 albertel 2452: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2453: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2454: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2455: if (!defined($mode)) { $mode='show'; }
2456: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2457: my $found=0;
2458: foreach my $type (split(',',$for)) {
2459: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2460: }
2461: if ($mode eq 'show' && !$found) {
1.326 albertel 2462: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2463: }
2464: if ($mode eq 'hide' && $found) {
1.326 albertel 2465: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2466: }
2467: } elsif ($target eq 'edit') {
2468: $result .=&Apache::edit::tag_start($target,$token);
2469: $result.=&Apache::edit::select_arg('Mode:','mode',
2470: [['show','Show'],
2471: ['hide','Hide']]
2472: ,$token);
2473: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2474: [ ['exam','Exam/Quiz Problem'],
2475: ['survey','Survey'],
1.465 raeburn 2476: ['surveycred','Survey (with credit)'],
2477: ['anonsurvey','Anonymous Survey'],
2478: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2479: ['problem','Homework Problem'],
1.479 raeburn 2480: ['practice','Practice Problem'],
2481: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2482: ,$token);
2483: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2484: } elsif ($target eq 'modified') {
2485: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2486: $safeeval,'mode','for');
2487: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2488: }
2489: return $result;
2490: }
2491:
2492: sub end_problemtype {
1.159 albertel 2493: return '';
1.24 albertel 2494: }
1.34 albertel 2495:
2496: sub start_startouttext {
1.159 albertel 2497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2498: my @result=(''.'');
2499: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2500:
2501: my $nesting =
2502: &Apache::lonxml::set_state('outtext',
2503: &Apache::lonxml::get_state('outtext')+1);
2504: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2505: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2506: }
1.159 albertel 2507: return (@result);
1.34 albertel 2508: }
1.159 albertel 2509:
1.34 albertel 2510: sub end_startouttext {
1.326 albertel 2511: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2512: my $result='';
2513: my $text='';
2514: if ($target eq 'edit') {
1.424 foxr 2515: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2516: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2517: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2518: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2519: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2520: .'</span></td>'
2521: .'<td align="left"><span id="math_'.$areaid.'" />'
2522: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2523: .'<span></td>'
2524: .'<td>'
2525: .&Apache::edit::insertlist($target,$token)
2526: .'</td>'
2527: .'<td align="right" valign="top">' .
2528: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2529: &Apache::edit::end_row().
1.362 albertel 2530: &Apache::edit::start_spanning_row()."\n".
1.255 www 2531: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2532: }
2533: if ($target eq 'modified') {
1.219 albertel 2534: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2535: }
2536: if ($target eq 'tex') {
2537: $result .= '\noindent ';
2538: }
2539: return $result;
1.34 albertel 2540: }
1.159 albertel 2541:
1.34 albertel 2542: sub start_endouttext {
1.159 albertel 2543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2544: my $result='';
2545: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2546: if ($target eq "modified") {
2547: $result='<endouttext />'.
1.377 albertel 2548: &Apache::edit::handle_insertafter('startouttext');
2549: }
1.404 albertel 2550:
2551: my $nesting =
2552: &Apache::lonxml::set_state('outtext',
2553: &Apache::lonxml::get_state('outtext')-1);
2554: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2555: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2556: &Apache::lonxml::set_state('outtext', 0);
2557: }
1.159 albertel 2558: return $result;
1.34 albertel 2559: }
1.159 albertel 2560:
1.34 albertel 2561: sub end_endouttext {
1.159 albertel 2562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2563: my @result=('','');
2564: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2565: return (@result);
1.34 albertel 2566: }
1.159 albertel 2567:
1.45 albertel 2568: sub delete_startouttext {
1.326 albertel 2569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2570: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2571: my $text=$$parser['-1']->get_text("/endouttext");
2572: my $ntoken=$$parser['-1']->get_token();
2573: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2574: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2575: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2576: # they did the last time round
2577: &Apache::lonxml::increasedepth($ntoken);
2578: &Apache::lonxml::decreasedepth($ntoken);
2579: return 1;
1.193 www 2580: }
2581:
2582: sub start_simpleeditbutton {
2583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2584: my $result='';
1.284 albertel 2585: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2586: ($target eq 'web') &&
1.330 albertel 2587: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2588: my $url=$env{'request.noversionuri'};
1.193 www 2589: $url=~s/\?.*$//;
1.367 albertel 2590: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2591: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2592: # $result='<p class="LC_warning">'
2593: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2594: # .&Apache::loncommon::help_open_topic('Caching')
2595: # .'</p>';
1.486 www 2596: $result.=&Apache::loncommon::head_subbox(
2597: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2598: .&Apache::lonhtmlcommon::add_item_funclist(
2599: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2600: .&mt('Edit').'</a>')
1.486 www 2601: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2602:
1.193 www 2603: }
2604: return $result;
2605: }
2606:
2607: sub end_simpleeditbutton {
2608: return '';
1.45 albertel 2609: }
1.34 albertel 2610:
1.428 raeburn 2611: sub practice_problem_header {
2612: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2613: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2614: '</span>';
2615: }
2616:
1.479 raeburn 2617: sub randomizetry_problem_header {
2618: my ($problemstatus,$reqtries) = @_;
2619: my ($header,$text);
2620: if ($reqtries > 1) {
2621: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2622: if (($problemstatus eq 'no') ||
2623: ($problemstatus eq 'no_feedback_ever')) {
2624: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2625: } else {
2626: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2627: }
2628: } else {
2629: $header = &mt('New Problem Variation Each Try');
2630: if (($problemstatus eq 'no') ||
2631: ($problemstatus eq 'no_feedback_ever')) {
2632: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2633:
2634: } else {
2635: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2636: }
2637: }
2638: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2639: '<span class="LC_info">'.$text.'</span><hr />';
2640: }
2641:
2642: sub randomizetry_part_header {
2643: my ($problemstatus,$reqtries,$num) = @_;
2644: my ($header,$text);
2645: if ($reqtries eq 'none') {
2646: $header = &mt('No Question Variation');
2647: $text = &mt('For this question there will no new variation after a try.');
2648: } elsif ($reqtries > 1) {
2649: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2650: if (($problemstatus eq 'no') ||
2651: ($problemstatus eq 'no_feedback_ever')) {
2652: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2653: } else {
2654: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2655: }
2656: } else {
2657: $header = &mt('New Question Variation For Each Try');
2658: if (($problemstatus eq 'no') ||
2659: ($problemstatus eq 'no_feedback_ever')) {
2660: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2661: } else {
2662: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2663: }
2664: }
2665: my $output;
2666: if ($num > 1) {
2667: $output .= '<hr />';
2668: }
2669: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2670: '<span class="LC_info">'.$text.'</span><br /><br />';
2671: return $output;
2672: }
2673:
1.1 albertel 2674: 1;
2675: __END__
1.435 jms 2676:
2677: =pod
2678:
2679: =back
2680:
2681: =cut
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