Annotation of loncom/homework/structuretags.pm, revision 1.501
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.501 ! foxr 4: # $Id: structuretags.pm,v 1.500 2011/12/27 20:13:22 foxr Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 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");
1.418 bisitz 993: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
994: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
995: ,$foldertitle,$time)."</h2>";
1.414 albertel 996: } elsif ($interval[1] eq 'course') {
997: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 998: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
999: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1000: ,$course,$time)."</h2>";
1.414 albertel 1001: } else {
1002: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 1003: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
1004: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1005: ,$title,$time)."</h2>";
1.414 albertel 1006: }
1.352 albertel 1007: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1008: my $buttontext = &mt('Show Resource');
1009: my $timertext = &mt('Start Timer?');
1.414 albertel 1010: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1011: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1012: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 1013: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1014: </form>
1015: ENDCHECKOUT
1.414 albertel 1016: return $result;
1.252 albertel 1017: }
1018:
1.204 albertel 1019: sub init_problem_globals {
1020: my ($type)=@_;
1021: #initialize globals
1.308 foxr 1022: # For problems, we start out in part 0 (outside a <part> tag).
1023: # and part 0 is used to describe the main body of the <problem>
1024: #
1.204 albertel 1025: if ($type eq 'problem') {
1026: $Apache::inputtags::part='0';
1027: @Apache::inputtags::partlist=('0');
1.405 albertel 1028: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1029: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1030:
1.266 albertel 1031: } elsif ($type eq 'library') {
1.204 albertel 1032: $Apache::inputtags::part='';
1033: @Apache::inputtags::partlist=();
1.405 albertel 1034: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1035: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1036:
1.304 albertel 1037: } elsif ($type eq 'Task') {
1038: $Apache::inputtags::part='0';
1039: @Apache::inputtags::partlist=('0');
1.405 albertel 1040: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1041: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1042: }
1.477 www 1043: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1044: @Apache::inputtags::responselist = ();
1045: @Apache::inputtags::importlist = ();
1046: @Apache::inputtags::previous=();
1047: @Apache::inputtags::previous_version=();
1048: $Apache::structuretags::printanswer='No';
1049: @Apache::structuretags::whileconds=();
1050: @Apache::structuretags::whilebody=();
1051: @Apache::structuretags::whileline=();
1052: $Apache::lonhomework::scantronmode=0;
1053: undef($Apache::lonhomework::name);
1.358 albertel 1054: undef($Apache::lonhomework::default_type);
1055: undef($Apache::lonhomework::type);
1.204 albertel 1056: }
1057:
1058: sub reset_problem_globals {
1059: my ($type)=@_;
1060: undef(%Apache::lonhomework::history);
1061: undef(%Apache::lonhomework::results);
1062: undef($Apache::inputtags::part);
1.498 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,$safeeval);
1.350 albertel 1165: my ($result,$form_tag_start);
1.354 albertel 1166: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1167: || $target eq 'edit') {
1.350 albertel 1168: ($result,$form_tag_start) =
1169: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1170: $name);
1171: }
1172:
1.284 albertel 1173: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1174:
1.479 raeburn 1175: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1176: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1177: $target eq 'tex') {
1.284 albertel 1178: if ($env{'form.markaccess'}) {
1.414 albertel 1179: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1180: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1181: }
1.501 ! foxr 1182: my $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
! 1183: my $time_left = $resource_due - time();
! 1184: if ($resource_due && ($time_left > 0)) {
! 1185: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
! 1186: }
1.479 raeburn 1187:
1.501 ! foxr 1188:
1.479 raeburn 1189: ($status,$accessmsg,my $slot_name,my $slot) =
1190: &Apache::lonhomework::check_slot_access('0','problem');
1191: push (@Apache::inputtags::status,$status);
1192:
1.159 albertel 1193: #handle rand seed in construction space
1.479 raeburn 1194: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1195: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1196:
1.333 albertel 1197: if ($env{'request.state'} ne "construct" &&
1198: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1199: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1200: $rndseed.'" />'.
1201: '<input type="submit" name="resetdata"
1202: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1203: if (exists($env{'form.username'})) {
1204: $form_tag_start.=
1.164 albertel 1205: '<input type="hidden" name="username"
1.284 albertel 1206: value="'.$env{'form.username'}.'" />';
1.334 albertel 1207: }
1.462 raeburn 1208: if ($env{'request.role.adv'}) {
1209: $form_tag_start.= ' <label class="LC_nobreak">'
1210: .'<input type="checkbox" name="showallfoils"';
1211: if (defined($env{'form.showallfoils'})) {
1212: $form_tag_start.=' checked="checked"';
1213: }
1214: $form_tag_start.= ' /> '
1215: .&mt('Show All Foils')
1216: .'</label>';
1217: }
1.417 www 1218: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1219: $form_tag_start.=&practice_problem_header();
1.417 www 1220: }
1.462 raeburn 1221: $form_tag_start.='<hr />';
1.479 raeburn 1222: } elsif (($env{'request.state'} ne "construct") &&
1223: ($Apache::lonhomework::type eq 'randomizetry') &&
1224: ($status eq 'CAN_ANSWER')) {
1225: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1226: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1227: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1228: }
1.324 albertel 1229:
1.159 albertel 1230: my $expression='$external::datestatus="'.$status.'";';
1231: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1232: &Apache::run::run($expression,$safeeval);
1233: &Apache::lonxml::debug("Got $status");
1.324 albertel 1234:
1.159 albertel 1235: if (( $status eq 'CLOSED' ) ||
1236: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1237: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1238: ( $status eq 'BANNED') ||
1.216 albertel 1239: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1240: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1241: ( $status eq 'NOTRESERVABLE') ||
1242: ( $status eq 'RESERVABLE') ||
1243: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1244: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1245: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1246: $style);
1.159 albertel 1247: if ( $target eq "web" ) {
1.343 albertel 1248: my $msg;
1.159 albertel 1249: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1250: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1251: } elsif ($status eq 'NOT_IN_A_SLOT') {
1252: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.499 raeburn 1253: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1254: ($status eq 'NOTRESERVABLE')) {
1255: $msg.='<h1>'.&mt('Access requires reservation to work at specific time/place.').'</h1>';
1.253 albertel 1256: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1257: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.499 raeburn 1258: }
1.216 albertel 1259: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1260: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1261: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1262: $msg.=&checkout_msg();
1.252 albertel 1263: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1264: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1265: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1266: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1267: } elsif ($status eq 'RESERVABLE') {
1268: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1269: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1270: '<br />'.
1271: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1272: } elsif ($status eq 'RESERVABLE_LATER') {
1273: $msg.=&mt('Window to make a reservation will open [_1].',
1274: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1275: } elsif ($status eq 'NOTRESERVABLE') {
1276: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1277: }
1278: $result.=$msg.'<br />';
1279: } elsif ($target eq 'tex') {
1.332 albertel 1280: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1281: : '\begin{minipage}{\textwidth}';
1.443 foxr 1282: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1283: $startminipage.'\vskip 0 mm';
1.159 albertel 1284: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1285: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1286: } else {
1.211 albertel 1287: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1288: }
1289: }
1.324 albertel 1290: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1291: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1292: $style);
1.324 albertel 1293: if ($target eq 'web') {
1.375 albertel 1294: $result .=
1295: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1296: } elsif ($target eq 'grade') {
1297: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1298: 'problem');
1299: }
1.159 albertel 1300: } elsif ($target eq 'web') {
1.360 albertel 1301: if ($status eq 'CAN_ANSWER'
1302: && $slot_name ne ''
1303: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1304: # unproctored slot access, self checkin
1305: &Apache::bridgetask::check_in('problem',undef,undef,
1306: $slot_name);
1307: }
1.368 albertel 1308: $result.="\n $form_tag_start \t".
1.227 albertel 1309: '<input type="hidden" name="submitted" value="yes" />';
1310: # create a page header and exit
1.284 albertel 1311: if ($env{'request.state'} eq "construct") {
1312: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1313: if ($Apache::lonhomework::type eq 'practice') {
1314: $result.= '<input type="submit" name="resetdata" '.
1315: 'value="'.&mt('New Problem Variation').'" />'.
1316: &practice_problem_header().'<hr />';
1317: }
1.227 albertel 1318: }
1319: # if we are viewing someone else preserve that info
1.284 albertel 1320: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1321: foreach my $field ('symb','courseid','domain','username') {
1322: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1323: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1324: }
1.479 raeburn 1325: foreach my $field ('trial','questiontype') {
1326: if ($env{"form.grade_$field"} ne '') {
1327: $result .= '<input type="hidden" name="grade_'.$field.
1328: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1329: }
1330: }
1.159 albertel 1331: }
1.490 raeburn 1332: if ($env{'form.grade_imsexport'}) {
1333: $result = '';
1334: }
1.159 albertel 1335: } elsif ($target eq 'tex') {
1.319 foxr 1336: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1337: $result .= &select_metadata_hyphenation();
1338:
1.319 foxr 1339:
1.99 sakharuk 1340: }
1.159 albertel 1341: } elsif ($target eq 'edit') {
1.343 albertel 1342: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1343: $Apache::lonxml::warnings_error_header=
1344: &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 1345: my $temp=&Apache::edit::insertlist($target,$token);
1346: $result.=$temp;
1347: } elsif ($target eq 'modified') {
1348: $result=$token->[4];
1349: } else {
1350: # page_start returned a starting result, delete it if we don't need it
1351: $result = '';
1.99 sakharuk 1352: }
1.159 albertel 1353: return $result;
1.9 albertel 1354: }
1355:
1356: sub end_problem {
1.159 albertel 1357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1358: my $result;
1.310 foxr 1359:
1.321 albertel 1360: if (!$Apache::lonxml::metamode) {
1361: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1362: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1363: }
1.319 foxr 1364:
1365: if ($target eq 'tex') {
1.321 albertel 1366: # Figure out the front matter and replace the
1367: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1368: # this in end_problem because whether or not we display due
1369: # dates depends on whether due dates have already been
1370: # displayed in the problem parts.
1371:
1.319 foxr 1372: my $frontmatter = '';
1373: my $startminipage = '';
1374: if (not $env{'form.problem_split'}=~/yes/) {
1375: $startminipage = '\begin{minipage}{\textwidth}';
1376: }
1377: my $id = $Apache::inputtags::part;
1378: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1379: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1380: my @packages = split /,/,$packages;
1381: my $allow_print_points = 0;
1382: foreach my $partial_key (@packages) {
1383: if ($partial_key=~m/^part_0$/) {
1384: $allow_print_points=1;
1385: }
1386: }
1387: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1388: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1389: if (lc($env{'course.'.$env{'request.course.id'}.
1390: '.disableexampointprint'}) eq 'yes') {
1391: $allow_print_points=0;
1392: }
1393: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1394: 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 1395: &clear_required_languages();
1.319 foxr 1396: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1397: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1398:
1399: # Figure out what the due date is and if we need to print
1400: # it in the problem header. We have been logging the
1401: # last due date written to file.
1402:
1403: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1404: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1405: my $duedate_text = &mt('Due date: [_1]'
1406: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1407: my $temp_file;
1408: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1409:
1410: # Figure out what the last printed due date is or set it
1411: # to the epoch if no duedates have been printed.
1412:
1413: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1414: if (-e $filename) {
1415: $temp_file = Apache::File->new($filename);
1416: my @due_file = <$temp_file>;
1417: $due_file_content = $due_file[$#due_file];
1418: chomp $due_file_content;
1419: }
1420:
1421: # We display the due date iff it is not the same as the last
1422: # duedate in problem header ($due_file_content), and
1423: # none of our parts displayed a duedate.
1424: #
1425: my $parts_with_displayduedate;
1426: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1427: $parts_with_displayduedate =
1428: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1429: } else {
1430: $parts_with_displayduedate = 0;
1431: }
1432: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1433: $temp_file = Apache::File->new('>'.$filename);
1434: print $temp_file "$duetime\n";
1435: if (not $env{'request.symb'} =~ m/\.page_/) {
1436: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1437: $frontmatter .= $begin_doc.
1.448 bisitz 1438: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1439: } else {
1440: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1441: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1442: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1443: }
1.319 foxr 1444: }
1445: } else {
1.448 bisitz 1446: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1447: }
1448: } else {
1449: if (not $env{'request.symb'} =~ m/\.page_/) {
1450: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1451: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1452: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1453: }
1.319 foxr 1454: } else {
1.381 albertel 1455: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1456: }
1457: }
1458: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1459: }
1460:
1.159 albertel 1461: my $status=$Apache::inputtags::status['-1'];
1462: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1463: $target eq 'tex') {
1.249 albertel 1464: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1465: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1466: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1467: &Apache::inputtags::grade;
1.324 albertel 1468: } elsif ($status eq 'NEEDS_CHECKIN') {
1469: # no need to grade, and don't want to hide data
1.249 albertel 1470: } else {
1471: # move any submission data to .hidden
1472: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1473: }
1.159 albertel 1474: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1475: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1476: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1477: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1478: # if part is zero, no <part>s existed, so we need show the current
1479: # grading status
1480: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1481: $result.= $gradestatus;
1482: }
1483: if (
1.284 albertel 1484: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1485: ($target eq 'answer') || ($target eq 'tex')
1486: ) {
1.490 raeburn 1487: if (($target ne 'tex') &&
1488: ($env{'form.answer_output_mode'} ne 'tex') &&
1489: (!$env{'form.grade_imsexport'})) {
1.254 www 1490: $result.="</form>";
1.159 albertel 1491: }
1492: if ($target eq 'web') {
1.346 albertel 1493: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1494: } elsif ($target eq 'tex') {
1.178 sakharuk 1495: my $endminipage = '';
1.284 albertel 1496: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1497: $endminipage = '\end{minipage}';
1498: }
1.284 albertel 1499: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1500: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1501: } else {
1.262 sakharuk 1502: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1503: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1504: $result .= $endminipage.'\end{document} ';
1505: } else {
1.382 albertel 1506: $result .= $endminipage;
1.262 sakharuk 1507: }
1.159 albertel 1508: }
1509: }
1510: }
1.476 www 1511: if ($target eq 'web') {
1512: $result.=&Apache::functionplotresponse::init_script();
1513: }
1.159 albertel 1514: if ($target eq 'grade') {
1515: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1516: &finalize_storage();
1517: }
1.284 albertel 1518: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1519: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1520: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1521: # normally we get it from above, but in CSTR
1.172 albertel 1522: # we always show answer mode too.
1.159 albertel 1523: }
1524: } elsif ($target eq 'meta') {
1525: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1526: @Apache::inputtags::response=();
1.159 albertel 1527: $result=&Apache::response::mandatory_part_meta;
1528: }
1.215 albertel 1529: $result.=&Apache::response::meta_part_order();
1.258 albertel 1530: $result.=&Apache::response::meta_response_order();
1.159 albertel 1531: } elsif ($target eq 'edit') {
1532: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1533: $result .= &problem_edit_footer();
1.320 albertel 1534: } elsif ($target eq 'modified') {
1535: $result .= $token->[2];
1.159 albertel 1536: }
1.155 albertel 1537:
1.284 albertel 1538: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1539: &Apache::inputtags::check_for_duplicate_ids();
1540: }
1.204 albertel 1541:
1542: &reset_problem_globals('problem');
1.159 albertel 1543:
1544: return $result;
1.48 albertel 1545: }
1546:
1.108 albertel 1547:
1.48 albertel 1548: sub start_library {
1.159 albertel 1549: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1550: my ($result,$form_tag_start);
1.371 albertel 1551: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1552: &init_problem_globals('library');
1553: $Apache::lonhomework::type='problem';
1554: }
1.159 albertel 1555: if ($target eq 'edit') {
1.343 albertel 1556: ($result,$form_tag_start)=
1557: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1558: 'Edit');
1559: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1560: my $temp=&Apache::edit::insertlist($target,$token);
1561: $result.=$temp;
1562: } elsif ($target eq 'modified') {
1563: $result=$token->[4];
1.340 albertel 1564: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1565: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1566: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1567: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1568: ($result,$form_tag_start)=
1569: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1570: $name);
1.479 raeburn 1571: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1572: $result.=" \n $form_tag_start".
1.159 albertel 1573: '<input type="hidden" name="submitted" value="yes" />';
1574: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1575: if ($Apache::lonhomework::type eq 'practice') {
1576: $result.= '<input type="submit" name="resetdata" '.
1577: 'value="'.&mt('New Problem Variation').'" />'.
1578: &practice_problem_header().'<hr />';
1579: }
1.159 albertel 1580: }
1581: return $result;
1.48 albertel 1582: }
1583:
1584: sub end_library {
1.159 albertel 1585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1586: my $result='';
1587: if ($target eq 'edit') {
1588: $result=&problem_edit_footer();
1.371 albertel 1589: } elsif ($target eq 'web'
1590: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1591: && $env{'request.state'} eq "construct") {
1.349 albertel 1592: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1593: }
1.371 albertel 1594: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1595: &reset_problem_globals('library');
1596: }
1.159 albertel 1597: return $result;
1.197 www 1598: }
1599:
1600: sub start_definetag {
1.326 albertel 1601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1602:
1603: my $result;
1604:
1605: my $name = $token->[2]->{'name'};
1.326 albertel 1606: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1607: if ($target eq 'web') {
1608: if ($name=~/^\//) {
1609: $result=
1610: '<br /><table class="LC_sty_end"><tr><th>'.
1611: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1612: } else {
1613: $result=
1614: '<br /><table class="LC_sty_begin"><tr><th>'.
1615: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1616: }
1617: $skip = &HTML::Entities::encode($skip, '<>&"');
1618: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1619: }
1620: return $result;
1621: }
1622:
1623: sub end_definetag {
1624: return '';
1.1 albertel 1625: }
1626:
1627: sub start_block {
1.201 albertel 1628: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1629:
1630: my $result;
1.1 albertel 1631:
1.339 albertel 1632: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1633: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1634: my $code = $token->[2]->{'condition'};
1.385 albertel 1635: if (defined($code) && $code ne '') {
1.137 albertel 1636: if (!$Apache::lonxml::default_homework_loaded) {
1637: &Apache::lonxml::default_homework_load($safeeval);
1638: }
1.131 albertel 1639: $result = &Apache::run::run($code,$safeeval);
1640: &Apache::lonxml::debug("block :$code: returned :$result:");
1641: } else {
1642: $result='1';
1643: }
1644: if ( ! $result ) {
1.201 albertel 1645: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1646: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1647: }
1648: $result='';
1649: } elsif ($target eq 'edit') {
1650: $result .=&Apache::edit::tag_start($target,$token);
1651: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1652: $token,40);
1653: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1654: } elsif ($target eq 'modified') {
1655: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1656: $safeeval,'condition');
1657: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1658: }
1.131 albertel 1659: return $result;
1.1 albertel 1660: }
1661:
1662: sub end_block {
1.167 www 1663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1664: my $result;
1665: if ($target eq "edit") {
1666: $result.= &Apache::edit::tag_end($target,$token,'');
1667: }
1668: return $result;
1669: }
1.500 foxr 1670: #
1671: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1672: # ...
1673: # </languageblock>
1674: #
1675: # This declares the intent to provide content that can be rendered in the
1676: # set of languages in the include specificatino but not in the exclude
1677: # specification. If a currently preferred language is in the include list
1678: # the content in the <languageblock>...</languageblock> is rendered
1679: # If the currently preferred language is in the exclude list,
1680: # the content in the <languageblock>..></languageblock is not rendered.
1681: #
1682: # Pathalogical case handling:
1683: # - Include specified, without the preferred language but exclude specified
1684: # also without the preferred langauge results in rendering the block.
1685: # - Exclude specified without include and excluden not containing a
1686: # preferred language renders the block.
1687: # - Include and exclude both specifying the preferred language does not
1688: # render the block.
1689: # - If neither include/exclude is specified, the block gets rendered.
1690: #
1691: # This tag has no effect when target is in {edit, modified}
1692: #
1.167 www 1693: sub start_languageblock {
1.201 albertel 1694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1695:
1.500 foxr 1696: my $result = '';
1.167 www 1697:
1.339 albertel 1698: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1699: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1700: my $include = $token->[2]->{'include'};
1701: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1702: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1703:
1704: # This should not even happen, since we should at least have the server language
1705:
1706: if (!$preferred_languages[0]) {
1707: $preferred_languages[0]='en';
1708: }
1709:
1710: # Now loop over all languages in order of preference
1711:
1712: my $render;
1.398 www 1713: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1714:
1715: # If neither include/nor exlude is present the block is going
1716: # to get rendered.
1717:
1.399 www 1718: my $found=0;
1.500 foxr 1719: $render=1;
1720:
1721: # If include is specified, don't render the block
1722: # unless the preferred language is included in the set.
1723:
1.398 www 1724: if ($include) {
1.500 foxr 1725: $render=0;
1.398 www 1726: foreach my $included_language (split(/\,/,$include)) {
1727: if ($included_language eq $preferred_language) {
1.500 foxr 1728: $render=1;
1.399 www 1729: $found=1;
1.500 foxr 1730: last; # Only need to find the first.
1.398 www 1731: }
1732: }
1733: }
1.500 foxr 1734: # Do we have an exclude argument?
1735: # If so, and one of the languages matches a preferred language
1736: # inhibit rendering the block. Note that in the pathalogical case the
1737: # author has specified a preferred language in both the include and exclude
1738: # attribte exclude is preferred.
1739:
1.398 www 1740: if ($exclude) {
1.500 foxr 1741: $render=1;
1.398 www 1742: foreach my $excluded_language (split(/\,/,$exclude)) {
1743: if ($excluded_language eq $preferred_language) {
1.500 foxr 1744: $render=0;
1.399 www 1745: $found=1;
1.500 foxr 1746: last; # Only need to find the first.
1.398 www 1747: }
1748: }
1749: }
1.500 foxr 1750: if ($found) {
1751: last; # Done on any match of include or exclude.
1752: }
1.398 www 1753: }
1.500 foxr 1754: # If $render not true skip the entire block until </languageblock>
1755: #
1756:
1757: if ( ! $render ) {
1.201 albertel 1758: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1759: $style);
1760: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1761: }
1.500 foxr 1762: # If $render is true, we've not skipped the contents of the <languageglock>
1763: # and the normal loncapa processing flow will render it as a matter of course.
1764:
1.167 www 1765: } elsif ($target eq 'edit') {
1766: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1767: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1768: $token,40);
1.211 albertel 1769: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1770: $token,40);
1771: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1772: } elsif ($target eq 'modified') {
1773: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1774: $safeeval,'include',
1775: 'exclude');
1.167 www 1776: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1777: }
1778: return $result;
1779: }
1780:
1781: sub end_languageblock {
1.170 www 1782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1783: my $result;
1.201 albertel 1784: if ($target eq "edit") {
1.170 www 1785: $result.= &Apache::edit::tag_end($target,$token,'');
1786: }
1787: return $result;
1788: }
1.500 foxr 1789: # languagblock specific tags:
1790: {
1791: # For chunks of a resource that has translations, this hash contains
1792: # the translations available indexed by language name.
1793: #
1794:
1795: my %available_texts;
1.170 www 1796:
1.500 foxr 1797: # <translated> starts a block of a resource that has multiple translations.
1798: # See the <lang> tag as well.
1799: # When </translated> is encountered if there is a translation for the
1800: # currently preferred language, that is rendered inthe web/tex/webgrade
1801: # targets. Otherwise, the default text is rendered.
1802: #
1803: # Note that <lang> is only registered for the duration of the
1804: # <translated>...</translated> block
1805: #
1806: # Pathalogical case handling:
1807: # - If there is no <lang> that specifies a 'default' and there is no
1808: # translation that matches a preferred language, nothing is rendered.
1809: # - Nested <translated>...</translated> might be linguistically supported by
1810: # XML due to the stack nature of tag registration(?) however the rendered
1811: # output will be incorrect because there is only one %available_texts
1812: # has and end_translated clears it.
1813: # - Material outside of a <lang>...</lang> block within the
1814: # <translated>...<translated> block won't render either e.g.:
1815: # <translated>
1816: # The following will be in your preferred langauge:
1817: # <lang which='en'>
1818: # This section in english
1819: # </lang>
1820: # <lang which='sgeiso'>
1821: # Hier es ist auf Deutsch.
1822: # </lang>
1823: # <lang which='sfriso'>
1824: # En Francais
1825: # </lang>
1826: # </translated>
1827: #
1828: # The introductory text prior to the first <lang> tag is not rendered.
1829: #
1.397 albertel 1830: sub start_translated {
1831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1832: &Apache::lonxml::register('Apache::structuretags',('lang'));
1833: undef(%available_texts);
1834: }
1835:
1836: sub end_translated {
1837: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1838: my $result;
1839: #show the translation on viewable targets
1840: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1841: # or non-viewable targets, if it's embedded in something that
1842: # wants the output
1843: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1844: && &Apache::lonxml::in_redirection() ) ) {
1845: my @possibilities = keys(%available_texts);
1846: my $which =
1847: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1848: if ($target eq 'tex') {
1849: $result = &select_hyphenation($which);
1850: }
1851: $result .= $available_texts{$which};
1852: if ($target eq 'tex') {
1853: $result .= &select_metadata_hyphenation(); # Restore original language.
1854: }
1.397 albertel 1855: }
1856: undef(%available_texts);
1857: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1858: return $result;
1859: }
1860:
1.500 foxr 1861: # <lang [which='language-name'] [other='lang1,lang2...']>
1862: # Specifies that the block contained within it is a translation
1863: # for a specific language specified by the 'which' attribute. The
1864: # 'other' attribute can be used by itself or in conjunction with
1865: # which to specify this tag _may_ be used as a translation for some
1866: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1867: # specifying that the block provides a translation for US (primary)
1868: # Canadian, Australian and UK Englush.
1869: #
1870: # Comment: this seems a bit silly why not just support a list of languages
1871: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1872: #
1873: # Effect:
1874: # The material within the <lang>..</lang> block is stored in the
1875: # specified set of $available_texts hash entries, the appropriate one
1876: # is selected at </translated> time.
1877: #
1878: # Pathalogical case handling:
1879: # If a language occurs multiple times within a <translated> block,
1880: # only the last one is rendered e.g.:
1881: #
1882: # <translated>
1883: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1884: # Red green color blindness is quite common affecting about 7.8% of
1885: # the male population, but onloy about .65% of the female population.
1886: # </lang>
1887: # Red green colour blindness is quite common affecting about 7.8% of
1888: # the male population, but onloy about .65% of the female population.
1889: # <lang which='seniso', other='senisoCA,senisoAU'>
1890: # </translated>
1891: #
1892: # renders the correct spelling of color (colour) for people who have specified
1893: # a preferred language that is one of the British Commonwealth languages
1894: # even though those are also listed as valid selections for the US english
1895: # <lang> block.
1896: #
1.397 albertel 1897: sub start_lang {
1898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1899: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1900: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1901: &Apache::lonxml::startredirection();
1902: }
1903: return '';
1904: }
1905:
1906: sub end_lang {
1907: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1908: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1909: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1910: my $result = &Apache::lonxml::endredirection();
1911: my $which = &Apache::lonxml::get_param('which',$parstack,
1912: $safeeval);
1.431 raeburn 1913: if ($which=~/\w/) {
1914: $available_texts{$which} = $result;
1915: }
1916: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1917: $safeeval);
1918: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1919: if ($language=~/\w/) {
1920: $available_texts{$language} = $result;
1921: }
1.427 bisitz 1922: }
1923:
1.397 albertel 1924: }
1925: return '';
1926: }
1.500 foxr 1927: } # end langauge block specific tags.
1928:
1.397 albertel 1929:
1.170 www 1930: sub start_instructorcomment {
1.201 albertel 1931: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1932:
1933: my $result;
1934:
1.339 albertel 1935: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1936: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1937: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1938: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1939: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1940: $parser,$style);
1.170 www 1941: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1942: }
1943: $result='';
1944: } elsif ($target eq 'edit') {
1945: $result .=&Apache::edit::tag_start($target,$token);
1946: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1947: }
1948: return $result;
1949: }
1950:
1951: sub end_instructorcomment {
1.159 albertel 1952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1953: my $result;
1954: if ($target eq "edit") {
1955: $result.= &Apache::edit::tag_end($target,$token,'');
1956: }
1957: return $result;
1.4 tsai 1958: }
1959:
1960: sub start_while {
1.326 albertel 1961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1962:
1.160 albertel 1963: my $result;
1.339 albertel 1964: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1965: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1966: my $code = $token->[2]->{'condition'};
1.4 tsai 1967:
1.160 albertel 1968: push( @Apache::structuretags::whileconds, $code);
1969: if (!$Apache::lonxml::default_homework_loaded) {
1970: &Apache::lonxml::default_homework_load($safeeval);
1971: }
1972: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1973: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1974: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1975: push( @Apache::structuretags::whileline, $token->[5]);
1976: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1977: if ( $result ) {
1978: &Apache::lonxml::newparser($parser,\$bodytext);
1979: }
1980: } elsif ($target eq 'edit') {
1981: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1982: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1983: $token,40);
1984: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1985: } elsif ($target eq 'modified') {
1986: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1987: $safeeval,'condition');
1988: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1989: }
1.160 albertel 1990: return $result;
1.4 tsai 1991: }
1992:
1993: sub end_while {
1.159 albertel 1994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1995: my $result;
1996:
1.339 albertel 1997: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1998: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1999: my $code = pop(@Apache::structuretags::whileconds);
2000: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2001: my $line = pop(@Apache::structuretags::whileline);
2002: my $return = &Apache::run::run($code,$safeeval);
2003: my $starttime=time;
2004: my $error=0;
2005: while ($return) {
2006: if (time-$starttime >
2007: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2008: $return = 0; $error=1; next;
1.161 albertel 2009: }
2010: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2011: if ($target eq 'grade' || $target eq 'answer' ||
2012: $target eq 'analyze') {
2013: # grade/answer/analyze should produce no output but if we
2014: # are redirecting, the redirecter should know what to do
2015: # with the output
2016: if (!$Apache::lonxml::redirection) { undef($result); }
2017: }
1.161 albertel 2018: $return = &Apache::run::run($code,$safeeval);
2019: }
2020: if ($error) {
1.430 bisitz 2021: &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 2022: }
2023: } elsif ($target eq "edit") {
2024: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2025: }
1.160 albertel 2026: return $result;
1.1 albertel 2027: }
1.6 tsai 2028:
1.160 albertel 2029: # <randomlist show="1">
1.6 tsai 2030: # <tag1>..</tag1>
2031: # <tag2>..</tag2>
2032: # <tag3>..</tag3>
1.160 albertel 2033: # ...
1.6 tsai 2034: # </randomlist>
2035: sub start_randomlist {
1.326 albertel 2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2037: my $result;
1.339 albertel 2038: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2039: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2040: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2041: my $b_parser= HTML::LCParser->new(\$body);
2042: $b_parser->xml_mode(1);
2043: $b_parser->marked_sections(1);
1.159 albertel 2044: my $b_tok;
2045: my @randomlist;
2046: my $list_item;
2047: while($b_tok = $b_parser->get_token() ) {
2048: if($b_tok->[0] eq 'S') { # start tag
2049: # get content of the tag until matching end tag
2050: # get all text upto the matching tag
2051: # and push the content into @randomlist
2052: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2053: $b_parser);
2054: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2055: push(@randomlist,$list_item);
2056: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2057: # $list_item</b>";
2058: }
2059: if($b_tok->[0] eq 'T') { # text
2060: # what to do with text in between tags?
2061: # print "<b>TEXT $b_tok->[1]</b><br />";
2062: }
2063: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2064: # print "<b>END-TAG $b_tok->[1]</b><br />";
2065: # }
2066: }
1.303 albertel 2067: if (@randomlist) {
2068: my @idx_arr = (0 .. $#randomlist);
2069: &Apache::structuretags::shuffle(\@idx_arr);
2070: my $bodytext = '';
2071: my $show=$#randomlist;
2072: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2073: $showarg--;
2074: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2075: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2076: my @currlist;
2077: my $part = $Apache::inputtags::part;
2078: if ($part ne '') {
2079: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2080: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2081: if (!(grep(/^\Q$part\E$/,@currlist))) {
2082: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2083: }
2084: } else {
2085: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2086: }
2087: }
2088: }
1.303 albertel 2089: for(0 .. $show) {
2090: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2091: }
2092: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2093: }
2094: } elsif ($target eq 'edit' ) {
2095: $result .=&Apache::edit::tag_start($target,$token);
2096: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2097: $token,5);
2098: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2099: } elsif ($target eq 'modified' ) {
2100: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2101: $safeeval,'show');
2102: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2103: }
2104: return $result;
1.7 tsai 2105: }
2106:
2107: sub shuffle {
2108: my $a=shift;
2109: my $i;
1.303 albertel 2110: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2111: &Apache::response::pushrandomnumber();
1.159 albertel 2112: for($i=@$a;--$i;) {
2113: my $j=int(&Math::Random::random_uniform() * ($i+1));
2114: next if $i == $j;
2115: @$a[$i,$j] = @$a[$j,$i];
2116: }
1.251 albertel 2117: &Apache::response::poprandomnumber();
1.7 tsai 2118: }
1.6 tsai 2119: }
2120:
2121: sub end_randomlist {
1.159 albertel 2122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2123: my $result;
2124: if ($target eq 'edit' ) {
2125: $result=&Apache::edit::tag_end($target,$token,
2126: 'End Randomly Parsed Block');
2127: }
2128: return $result;
1.6 tsai 2129: }
2130:
1.283 albertel 2131: sub ordered_show_check {
2132: my $last_part=$Apache::inputtags::partlist[-2];
2133: my $in_order=
2134: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2135: my $in_order_show=1;
2136: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2137: $in_order_show=&Apache::response::check_status($last_part);
2138: }
2139: return $in_order_show;
2140: }
2141:
1.469 www 2142:
2143: sub start_startpartmarker {
2144: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2145: my $result='';
2146: if ($target eq 'edit') {
2147: $result=&Apache::edit::tag_start($target,$token);
2148: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2149: $result.=&Apache::edit::end_table();
2150:
2151: }
2152: return $result;
2153: }
2154:
2155: sub end_startpartmarker {
2156: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2157: my @result;
2158: if ($target eq 'edit') { $result[1]='no'; }
2159: return @result;
2160: }
2161:
2162: sub start_endpartmarker {
2163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2164: my $result='';
2165: if ($target eq 'edit') {
2166: $result=&Apache::edit::tag_start($target,$token);
2167: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2168: $result.=&Apache::edit::end_table();
2169:
2170: }
2171: return $result;
2172: }
2173:
2174: sub end_endpartmarker {
2175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2176: my @result;
2177: if ($target eq 'edit') { $result[1]='no'; }
2178: return @result;
2179: }
2180:
2181:
2182:
2183:
2184:
1.11 albertel 2185: sub start_part {
1.326 albertel 2186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2187: if (!$Apache::lonxml::metamode) {
2188: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2189: # duedates.
2190: }
1.159 albertel 2191: my $result='';
1.386 albertel 2192: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2193: $Apache::inputtags::part=$id;
1.177 albertel 2194: push(@Apache::inputtags::partlist,$id);
2195: @Apache::inputtags::response=();
1.159 albertel 2196: @Apache::inputtags::previous=();
2197: @Apache::inputtags::previous_version=();
1.405 albertel 2198: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2199: &Apache::response::reset_params();
2200:
1.159 albertel 2201: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2202: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2203: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2204: my $in_order_show=&ordered_show_check();
1.214 albertel 2205: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2206: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2207: &Apache::run::run($expression,$safeeval);
1.159 albertel 2208:
2209: if ($target eq 'meta') {
1.224 www 2210: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2211: return &Apache::response::mandatory_part_meta.
2212: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2213: } elsif ($target eq 'web' || $target eq 'grade' ||
2214: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2215: if ($hidden || !$in_order_show) {
1.326 albertel 2216: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2217: } else {
2218: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2219: push (@Apache::inputtags::status,$status);
2220: my $expression='$external::datestatus="'.$status.'";';
2221: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2222: &Apache::run::run($expression,$safeeval);
1.284 albertel 2223: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2224: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2225: }
1.216 albertel 2226: if (( $status eq 'CLOSED' ) ||
2227: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2228: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2229: ( $status eq 'BANNED') ||
2230: ( $status eq 'UNAVAILABLE') ||
2231: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2232: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2233: $style);
1.159 albertel 2234: if ( $target eq "web" ) {
1.211 albertel 2235: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2236: } elsif ( $target eq 'tex' ) {
1.284 albertel 2237: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2238: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2239: } else {
1.211 albertel 2240: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2241: }
1.159 albertel 2242: }
2243: } else {
2244: if ($target eq 'tex') {
1.284 albertel 2245: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2246: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2247: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2248: } else {
2249: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2250: }
1.195 sakharuk 2251: }
1.159 albertel 2252: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2253: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2254: my @allkeys = split /,/,$allkeys;
2255: my $allow_print_points = 0;
2256: foreach my $partial_key (@allkeys) {
1.230 albertel 2257: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2258: if ($1 ne '0') {$allow_print_points=1;}
2259: }
2260: }
1.275 albertel 2261: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2262: if (defined($maxtries) && $maxtries < 0) {
2263: $allow_print_points=0;
2264: }
1.302 albertel 2265: if (lc($env{'course.'.$env{'request.course.id'}.
2266: '.disableexampointprint'}) eq 'yes') {
2267: $allow_print_points=0;
2268: }
1.463 foxr 2269: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2270: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2271:
2272: }
1.233 www 2273: } elsif ($target eq 'web') {
1.479 raeburn 2274: if ($status eq 'CAN_ANSWER') {
2275: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2276: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2277: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2278: my $num = scalar(@Apache::inputtags::partlist)-1;
2279: if ($probrandomize eq 'randomizetry') {
2280: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2281: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2282: } else {
2283: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2284: if ($probrandtries ne $reqtries) {
2285: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2286: }
2287: }
2288: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2289: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2290: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2291: }
2292: }
1.475 raeburn 2293: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2294: }
2295: }
2296: }
2297: } elsif ($target eq 'edit') {
2298: $result.=&Apache::edit::tag_start($target,$token);
2299: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2300: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2301: ' '.
2302: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2303: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2304: } elsif ($target eq 'modified') {
2305: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2306: $safeeval,'id','display');
1.159 albertel 2307: if ($constructtag) {
1.225 albertel 2308: #limiting ids to only letters numbers, and space
1.224 www 2309: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2310: $result = &Apache::edit::rebuild_tag($token);
2311: }
2312: }
2313: return $result;
1.11 albertel 2314: }
2315:
2316: sub end_part {
1.159 albertel 2317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2318: &Apache::lonxml::debug("in end_part $target ");
2319: my $status=$Apache::inputtags::status['-1'];
2320: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2321: my $in_order_show=&ordered_show_check();
1.321 albertel 2322: my $result;
2323: if (!$Apache::lonxml::metamode) {
2324: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2325: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2326: }
1.312 albertel 2327: if ($target eq 'grade') {
1.249 albertel 2328: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2329: !$hidden && $in_order_show) {
1.311 foxr 2330: $result.=&Apache::inputtags::grade;
1.249 albertel 2331: } else {
2332: # move any submission data to .hidden
2333: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2334: }
1.283 albertel 2335: } elsif (($target eq 'web' || $target eq 'tex') &&
2336: !$hidden && $in_order_show) {
1.159 albertel 2337: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2338: $target);
1.490 raeburn 2339: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2340: ($env{'form.grade_imsexport'})) {
1.212 albertel 2341: $gradestatus='';
2342: }
1.311 foxr 2343: $result.=$gradestatus;
1.265 sakharuk 2344: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2345: } elsif ($target eq 'edit') {
1.311 foxr 2346: $result.=&Apache::edit::end_table();
1.322 albertel 2347: } elsif ($target eq 'modified') {
2348: $result .= $token->[2];
1.159 albertel 2349: }
2350: pop @Apache::inputtags::status;
2351: $Apache::inputtags::part='';
1.295 albertel 2352: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2353: return $result;
1.11 albertel 2354: }
1.1 albertel 2355:
1.25 albertel 2356: sub start_preduedate {
1.326 albertel 2357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2358: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2359: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2360: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2361: if (!$Apache::lonhomework::scantronmode &&
2362: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2363: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2364: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2365: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2366: }
1.24 albertel 2367: }
1.159 albertel 2368: return '';
1.24 albertel 2369: }
2370:
1.25 albertel 2371: sub end_preduedate {
1.159 albertel 2372: return '';
1.24 albertel 2373: }
2374:
1.369 foxr 2375: # In all the modes where <postanswerdate> text is
2376: # displayable, all we do is eat up the text between the start/stop
2377: # tags if the conditions are not right to display it.
1.25 albertel 2378: sub start_postanswerdate {
1.326 albertel 2379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2380: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2381: &Apache::lonnet::allowed('pav',
2382: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2383: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2384: $target eq 'tex' ) {
1.300 albertel 2385: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2386: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2387: (($target eq 'tex') && !$pav)) {
1.326 albertel 2388: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2389: }
2390: }
2391: return '';
1.24 albertel 2392: }
2393:
1.25 albertel 2394: sub end_postanswerdate {
1.159 albertel 2395: return '';
1.24 albertel 2396: }
2397:
1.25 albertel 2398: sub start_notsolved {
1.326 albertel 2399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2400: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2401: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2402: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2403: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2404: if ($gradestatus =~ /^correct/ &&
2405: &Apache::response::show_answer()) {
1.159 albertel 2406: &Apache::lonxml::debug("skipping");
1.326 albertel 2407: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2408: }
1.24 albertel 2409: }
1.159 albertel 2410: return '';
1.24 albertel 2411: }
2412:
1.25 albertel 2413: sub end_notsolved {
1.159 albertel 2414: return '';
1.24 albertel 2415: }
2416:
2417: sub start_solved {
1.326 albertel 2418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2419: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2420: $target eq 'tex') {
2421: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2422: if ($gradestatus !~ /^correct/ ||
2423: !&Apache::response::show_answer()) {
1.326 albertel 2424: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2425: }
1.24 albertel 2426: }
1.159 albertel 2427: return '';
1.24 albertel 2428: }
2429:
2430: sub end_solved {
1.248 albertel 2431: return '';
2432: }
2433:
2434: sub start_problemtype {
1.326 albertel 2435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2436: my $result;
1.339 albertel 2437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2438: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2439: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2440: if (!defined($mode)) { $mode='show'; }
2441: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2442: my $found=0;
2443: foreach my $type (split(',',$for)) {
2444: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2445: }
2446: if ($mode eq 'show' && !$found) {
1.326 albertel 2447: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2448: }
2449: if ($mode eq 'hide' && $found) {
1.326 albertel 2450: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2451: }
2452: } elsif ($target eq 'edit') {
2453: $result .=&Apache::edit::tag_start($target,$token);
2454: $result.=&Apache::edit::select_arg('Mode:','mode',
2455: [['show','Show'],
2456: ['hide','Hide']]
2457: ,$token);
2458: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2459: [ ['exam','Exam/Quiz Problem'],
2460: ['survey','Survey'],
1.465 raeburn 2461: ['surveycred','Survey (with credit)'],
2462: ['anonsurvey','Anonymous Survey'],
2463: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2464: ['problem','Homework Problem'],
1.479 raeburn 2465: ['practice','Practice Problem'],
2466: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2467: ,$token);
2468: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2469: } elsif ($target eq 'modified') {
2470: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2471: $safeeval,'mode','for');
2472: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2473: }
2474: return $result;
2475: }
2476:
2477: sub end_problemtype {
1.159 albertel 2478: return '';
1.24 albertel 2479: }
1.34 albertel 2480:
2481: sub start_startouttext {
1.159 albertel 2482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2483: my @result=(''.'');
2484: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2485:
2486: my $nesting =
2487: &Apache::lonxml::set_state('outtext',
2488: &Apache::lonxml::get_state('outtext')+1);
2489: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2490: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2491: }
1.159 albertel 2492: return (@result);
1.34 albertel 2493: }
1.159 albertel 2494:
1.34 albertel 2495: sub end_startouttext {
1.326 albertel 2496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2497: my $result='';
2498: my $text='';
2499: if ($target eq 'edit') {
1.424 foxr 2500: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2501: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2502: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2503: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2504: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2505: .'</span></td>'
2506: .'<td align="left"><span id="math_'.$areaid.'" />'
2507: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2508: .'<span></td>'
2509: .'<td>'
2510: .&Apache::edit::insertlist($target,$token)
2511: .'</td>'
2512: .'<td align="right" valign="top">' .
2513: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2514: &Apache::edit::end_row().
1.362 albertel 2515: &Apache::edit::start_spanning_row()."\n".
1.255 www 2516: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2517: }
2518: if ($target eq 'modified') {
1.219 albertel 2519: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2520: }
2521: if ($target eq 'tex') {
2522: $result .= '\noindent ';
2523: }
2524: return $result;
1.34 albertel 2525: }
1.159 albertel 2526:
1.34 albertel 2527: sub start_endouttext {
1.159 albertel 2528: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2529: my $result='';
2530: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2531: if ($target eq "modified") {
2532: $result='<endouttext />'.
1.377 albertel 2533: &Apache::edit::handle_insertafter('startouttext');
2534: }
1.404 albertel 2535:
2536: my $nesting =
2537: &Apache::lonxml::set_state('outtext',
2538: &Apache::lonxml::get_state('outtext')-1);
2539: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2540: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2541: &Apache::lonxml::set_state('outtext', 0);
2542: }
1.159 albertel 2543: return $result;
1.34 albertel 2544: }
1.159 albertel 2545:
1.34 albertel 2546: sub end_endouttext {
1.159 albertel 2547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2548: my @result=('','');
2549: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2550: return (@result);
1.34 albertel 2551: }
1.159 albertel 2552:
1.45 albertel 2553: sub delete_startouttext {
1.326 albertel 2554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2555: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2556: my $text=$$parser['-1']->get_text("/endouttext");
2557: my $ntoken=$$parser['-1']->get_token();
2558: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2559: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2560: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2561: # they did the last time round
2562: &Apache::lonxml::increasedepth($ntoken);
2563: &Apache::lonxml::decreasedepth($ntoken);
2564: return 1;
1.193 www 2565: }
2566:
2567: sub start_simpleeditbutton {
2568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2569: my $result='';
1.284 albertel 2570: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2571: ($target eq 'web') &&
1.330 albertel 2572: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2573: my $url=$env{'request.noversionuri'};
1.193 www 2574: $url=~s/\?.*$//;
1.367 albertel 2575: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2576: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2577: # $result='<p class="LC_warning">'
2578: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2579: # .&Apache::loncommon::help_open_topic('Caching')
2580: # .'</p>';
1.486 www 2581: $result.=&Apache::loncommon::head_subbox(
2582: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2583: .&Apache::lonhtmlcommon::add_item_funclist(
2584: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2585: .&mt('Edit').'</a>')
1.486 www 2586: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2587:
1.193 www 2588: }
2589: return $result;
2590: }
2591:
2592: sub end_simpleeditbutton {
2593: return '';
1.45 albertel 2594: }
1.34 albertel 2595:
1.428 raeburn 2596: sub practice_problem_header {
2597: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2598: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2599: '</span>';
2600: }
2601:
1.479 raeburn 2602: sub randomizetry_problem_header {
2603: my ($problemstatus,$reqtries) = @_;
2604: my ($header,$text);
2605: if ($reqtries > 1) {
2606: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2607: if (($problemstatus eq 'no') ||
2608: ($problemstatus eq 'no_feedback_ever')) {
2609: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2610: } else {
2611: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2612: }
2613: } else {
2614: $header = &mt('New Problem Variation Each Try');
2615: if (($problemstatus eq 'no') ||
2616: ($problemstatus eq 'no_feedback_ever')) {
2617: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2618:
2619: } else {
2620: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2621: }
2622: }
2623: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2624: '<span class="LC_info">'.$text.'</span><hr />';
2625: }
2626:
2627: sub randomizetry_part_header {
2628: my ($problemstatus,$reqtries,$num) = @_;
2629: my ($header,$text);
2630: if ($reqtries eq 'none') {
2631: $header = &mt('No Question Variation');
2632: $text = &mt('For this question there will no new variation after a try.');
2633: } elsif ($reqtries > 1) {
2634: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2635: if (($problemstatus eq 'no') ||
2636: ($problemstatus eq 'no_feedback_ever')) {
2637: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2638: } else {
2639: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2640: }
2641: } else {
2642: $header = &mt('New Question Variation For Each Try');
2643: if (($problemstatus eq 'no') ||
2644: ($problemstatus eq 'no_feedback_ever')) {
2645: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2646: } else {
2647: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2648: }
2649: }
2650: my $output;
2651: if ($num > 1) {
2652: $output .= '<hr />';
2653: }
2654: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2655: '<span class="LC_info">'.$text.'</span><br /><br />';
2656: return $output;
2657: }
2658:
1.1 albertel 2659: 1;
2660: __END__
1.435 jms 2661:
2662: =pod
2663:
2664: =back
2665:
2666: =cut
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