Annotation of loncom/homework/structuretags.pm, revision 1.507
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.507 ! raeburn 4: # $Id: structuretags.pm,v 1.506 2012/05/28 13:09:22 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
227: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 228: &setmode_javascript().
1.400 albertel 229: <<'JS';
230: <script type="text/javascript">
1.483 raeburn 231: // <![CDATA[
1.494 raeburn 232: function setSubmittedPart (part,prefix) {
233: if (typeof(prefix) == 'undefined') {
234: this.document.lonhomework.submitted.value="part_"+part;
235: } else {
236: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
237: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
238: this.document.lonhomework.elements[i].value="part_"+part;
239: }
240: }
241: }
1.400 albertel 242: }
243:
244: function image_response_click (which, e) {
245: init_geometry();
246: if (!e) { e = window.event; } //IE
247: var input_element = document.lonhomework.elements[which];
1.401 albertel 248: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 249: var token = token_element.value;
1.401 albertel 250: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 251: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
252: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
253: var click = x+':'+y;
254: input_element.value = click;
1.485 raeburn 255: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 256: }
1.483 raeburn 257: // ]]>
1.400 albertel 258: </script>
259: JS
260: }
261:
1.416 raeburn 262: sub setmode_javascript {
263: return <<"ENDSCRIPT";
264: <script type="text/javascript">
1.485 raeburn 265: // <![CDATA[
1.416 raeburn 266: function setmode(form,probmode) {
267: form.problemmode.value = probmode;
268: form.submit();
269: }
1.485 raeburn 270: // ]]>
1.416 raeburn 271: </script>
272: ENDSCRIPT
273: }
274:
1.48 albertel 275: sub page_start {
1.345 albertel 276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
277: $extra_head)=@_;
1.159 albertel 278: my %found;
1.207 albertel 279: foreach my $taginside (@$tagstack) {
1.159 albertel 280: foreach my $taglookedfor ('html','body','form') {
281: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
282: }
283: }
284:
1.343 albertel 285: if ($target eq 'tex') {
286: return
287: &Apache::londefdef::start_html($target,$token,$tagstack,
288: $parstack,$parser,$safeeval);
289: }
290:
1.474 raeburn 291: $extra_head .= &homework_js().
292: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
293: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
294: my %textarea_args = (
295: dragmath => 'math',
296: );
297: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 298: }
1.478 raeburn 299: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 300: my $needs_upload;
1.495 raeburn 301: my ($symb)= &Apache::lonnet::whichuser();
302: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 303: if ($is_task) {
1.495 raeburn 304: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 305: } else {
306: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 307: unless ($env{'request.state'} eq 'construct') {
308: my $navmap = Apache::lonnavmaps::navmap->new();
309: if (ref($navmap)) {
310: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 311: my $is_page;
312: if (ref($mapres)) {
313: $is_page = $mapres->is_page();
314: }
315: unless ($is_page) {
1.495 raeburn 316: $needs_upload = 1;
317: }
318: }
319: }
1.493 raeburn 320: } else {
321: unless ($env{'request.state'} eq 'construct') {
322: my $navmap = Apache::lonnavmaps::navmap->new();
323: if (ref($navmap)) {
1.495 raeburn 324: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 325: my $is_page;
326: if (ref($mapres)) {
327: $is_page = $mapres->is_page();
328: }
329: unless ($is_page) {
1.495 raeburn 330: my $res = $navmap->getBySymb($symb);
331: if (ref($res)) {
332: my $partlist = $res->parts();
333: if (ref($partlist) eq 'ARRAY') {
334: foreach my $part (@{$partlist}) {
335: my @types = $res->responseType($part);
336: my @ids = $res->responseIds($part);
337: for (my $i=0; $i < scalar(@ids); $i++) {
338: if ($types[$i] eq 'essay') {
339: my $partid = $part.'_'.$ids[$i];
340: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
341: $needs_upload = 1;
342: last;
343: }
1.493 raeburn 344: }
345: }
346: }
1.495 raeburn 347: }
348: }
1.493 raeburn 349: }
350: }
351: }
352: }
1.495 raeburn 353: if ($needs_upload) {
354: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
355: }
1.478 raeburn 356: }
1.425 raeburn 357:
1.344 albertel 358: my %body_args;
359: if (defined($found{'html'})) {
360: $body_args{'skip_phases'}{'head'}=1;
361: } else {
1.343 albertel 362:
1.345 albertel 363: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 364:
1.379 albertel 365: $extra_head .= &Apache::londefdef::generate_css_links();
366:
1.384 albertel 367: if ($env{'request.state'} eq 'construct') {
1.343 albertel 368: $extra_head.=&Apache::edit::js_change_detection().
369: "<script type=\"text/javascript\">\n".
370: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
371: &Apache::loncommon::browser_and_searcher_javascript().
372: "\n</script>\n";
373: }
1.159 albertel 374: }
1.343 albertel 375:
1.446 bisitz 376: my $pageheader = '';
1.344 albertel 377: if (defined($found{'body'})) {
378: $body_args{'skip_phases'}{'body'}=1;
379: } elsif (!defined($found{'body'})
380: && $env{'request.state'} eq 'construct') {
1.343 albertel 381: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 382: # Breadcrumbs for Construction Space
383: &Apache::lonhtmlcommon::clear_breadcrumbs();
384: &Apache::lonhtmlcommon::add_breadcrumb({
385: 'text' => 'Construction Space',
1.497 raeburn 386: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 387: });
1.460 droeschl 388: # breadcrumbs (and tools) will be created
389: # in start_page->bodytag->innerregister
390:
1.450 bisitz 391: # FIXME Where are we?
392: # &Apache::lonhtmlcommon::add_breadcrumb({
393: # 'text' => 'Problem Editing', # 'Problem Testing'
394: # 'href' => '',
395: # });
1.460 droeschl 396: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 397: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 398: }
1.272 albertel 399: } elsif (!defined($found{'body'})) {
1.343 albertel 400: my %add_entries;
1.159 albertel 401: my $background=&Apache::lonxml::get_param('background',$parstack,
402: $safeeval);
1.343 albertel 403: if ($background ne '' ) {
404: $add_entries{'background'} = $background;
405: }
1.344 albertel 406:
1.290 albertel 407: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
408: $safeeval);
1.446 bisitz 409: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 410:
1.446 bisitz 411: $body_args{'bgcolor'} = $bgcolor;
412: # $body_args{'no_title'} = 1;
413: $body_args{'force_register'} = 1;
414: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 415: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 416: $body_args{'only_body'} = 1;
417: }
1.344 albertel 418: }
1.365 albertel 419: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 420: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
421: \%body_args);
1.446 bisitz 422: $page_start .= $pageheader;
1.462 raeburn 423: if (!defined($found{'body'})
424: && $env{'request.state'} ne 'construct'
425: && ($target eq 'web' || $target eq 'webgrade')) {
426:
427: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
428: if ($symb eq '' && !$publicuser) {
429: $page_start .= '<p class="LC_info">'
430: .&mt('Browsing resource, all submissions are temporary.')
431: .'</p>';
1.457 bisitz 432: }
1.344 albertel 433: }
434:
1.409 albertel 435: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 436: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 437: }
438: my $form_tag_start;
439: if (!defined($found{'form'})) {
1.337 albertel 440: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 441: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 442: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 443: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 444: $form_tag_start.=$uri.'" ';
445: if ($target eq 'edit') {
446: $form_tag_start.=&Apache::edit::form_change_detection();
447: }
1.493 raeburn 448: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
449: my ($path,$multiresp) =
450: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 451: if (($is_task) || ($needs_upload)) {
452: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 453: }
1.368 albertel 454: $form_tag_start.='>'."\n";
1.355 albertel 455:
456: my $symb=&Apache::lonnet::symbread();
457: if ($symb =~ /\S/) {
458: $symb=
459: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
460: $form_tag_start.=
1.368 albertel 461: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 462: }
1.159 albertel 463: }
1.343 albertel 464: return ($page_start,$form_tag_start);
1.105 albertel 465: }
466:
1.141 matthew 467: #use Time::HiRes();
1.105 albertel 468: sub get_resource_name {
1.159 albertel 469: my ($parstack,$safeeval)=@_;
1.388 foxr 470: my $name;
1.204 albertel 471: if (defined($Apache::lonhomework::name)) {
1.388 foxr 472: $name = $Apache::lonhomework::name;
473: } else {
474: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 475: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 476: if ($name eq '') {
477: $name=&Apache::lonnet::EXT('resource.title');
478: if ($name eq 'con_lost') { $name = ''; }
479: }
480: if ($name!~/\S+/) {
481: $name=$env{'request.uri'};
482: $name=~s-.*/([^/]+)$-$1-;
483: }
484: # The name has had html tags escaped:
485:
486: $name=~s/</</gs;
487: $name=~s/>/>/gs;
488:
489: $Apache::lonhomework::name=$name;
1.204 albertel 490: }
1.159 albertel 491: return $name;
1.105 albertel 492: }
493:
494: sub setup_rndseed {
1.479 raeburn 495: my ($safeeval,$target)=@_;
1.367 albertel 496: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 497: my ($questiontype,$set_safespace,$rndseed);
498: if ($target eq 'analyze') {
499: $questiontype = $env{'form.grade_questiontype'};
500: }
501: unless (defined($questiontype)) {
502: $questiontype = $Apache::lonhomework::type;
503: }
1.333 albertel 504: if ($env{'request.state'} eq "construct"
505: || $symb eq ''
506: || $Apache::lonhomework::type eq 'practice'
507: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 508: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 509: ['rndseed']);
1.284 albertel 510: $rndseed=$env{'form.rndseed'};
1.159 albertel 511: if (!$rndseed) {
1.162 albertel 512: $rndseed=$Apache::lonhomework::history{'rndseed'};
513: if (!$rndseed) {
514: $rndseed=time;
515: }
1.284 albertel 516: $env{'form.rndseed'}=$rndseed;
1.162 albertel 517: }
1.479 raeburn 518: if (($env{'request.state'} eq "construct") &&
519: ($Apache::lonhomework::type eq 'randomizetry')) {
520: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
521: if ($tries) {
522: $rndseed += $tries;
523: }
1.480 raeburn 524: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 525: }
1.374 albertel 526: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
527: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 528: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 529: srand(time);
530: $rndseed=int(rand(2100000000));
1.284 albertel 531: $env{'form.rndseed'}=$rndseed;
532: delete($env{'form.resetdata'});
533: delete($env{'form.newrandomization'});
1.159 albertel 534: }
1.488 www 535: $rndseed=~s/\,/\:/g;
536: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 537: if (defined($rndseed)) {
538: my ($c1,$c2)=split(/\:/,$rndseed);
539: unless ($c2) { $c2=0; }
540: unless (($c1==int($c1)) && ($c2==int($c2))) {
541: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
542: }
1.187 albertel 543: }
1.247 albertel 544: if ($Apache::lonhomework::history{'resource.CODE'}) {
545: $rndseed=&Apache::lonnet::rndseed();
546: }
1.479 raeburn 547: $set_safespace = 1;
548: } elsif ($questiontype eq 'randomizetry') {
549: if ($target eq 'analyze') {
550: if (defined($env{'form.grade_rndseed'})) {
551: $rndseed = $env{'form.grade_rndseed'};
552: }
553: }
554: unless (($target eq 'analyze') && (defined($rndseed))) {
555: $rndseed=&Apache::lonnet::rndseed();
556: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
557: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
558: $curr_try ++;
559: }
560: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
561: $rndseed = $1;
562: }
563: if ($curr_try) {
564: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
565: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
566: my $inc = int(($curr_try-1)/$reqtries);
567: $rndseed += $inc;
568: } else {
569: $rndseed += $curr_try;
570: }
571: }
572: }
573: $set_safespace = 1;
574: }
575: if ($set_safespace) {
576: if ($safeeval) {
577: &Apache::lonxml::debug("Setting rndseed to $rndseed");
578: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
579: }
580: }
581: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
582: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 583: }
584: return $rndseed;
1.105 albertel 585: }
586:
1.268 albertel 587: sub remember_problem_state {
588: return '
1.284 albertel 589: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
590: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
591: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 592: }
593:
1.487 www 594: sub problem_edit_action_button {
595: my ($name,$action,$accesskey,$text,$flag)=@_;
596: my $actionscript="setmode(this.form,'$action')";
597: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
598: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
599: }
600:
1.423 www 601: sub problem_edit_buttons {
1.487 www 602: my ($mode)=@_;
603: # Buttons that do not save
604: my $result='<div class="LC_edit_problem_discards">'.
605: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
606: if ($mode eq 'editxml') {
607: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
608: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
609: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
610: } else {
611: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
612: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
613: }
614: $result.="\n</div>";
615: # Buttons that save
616: $result.='<div class="LC_edit_problem_saves">';
617: if ($mode eq 'editxml') {
618: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
619: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
620: } else {
621: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
622: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
623: }
624: $result.="\n</div>\n";
625: return $result;
1.423 www 626: }
627:
628: sub problem_edit_header {
1.487 www 629: return '<input type="hidden" name="submitted" value="edit" />'.
630: &remember_problem_state('edit').'
1.423 www 631: <div class="LC_edit_problem_header">
632: <div class="LC_edit_problem_header_title">
633: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
634: </div>'.
1.487 www 635: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 636: &problem_edit_buttons().'
1.459 bisitz 637: <hr style="clear:both;" />
1.409 albertel 638: '.&Apache::lonxml::message_location().'
1.408 albertel 639: </div>
640: '.
1.458 bisitz 641: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 642: }
643:
644: sub problem_edit_footer {
1.412 albertel 645: return '</td></tr></table><br />
646: <div class="LC_edit_problem_footer">
1.453 bisitz 647: <hr />'.
1.423 www 648: &problem_edit_buttons().'
1.459 bisitz 649: <hr style="clear:both;" />
1.412 albertel 650: </div>
651: '.
1.342 albertel 652: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 653: }
654:
1.235 albertel 655: sub option {
656: my ($value,$name) = @_;
657: my $result ="<option value='".$value."' ";
1.284 albertel 658: if ($env{'form.'.$name} eq $value) {
1.235 albertel 659: $result.=" selected='on' ";
660: }
661: $result.='>';
662: return $result;
663: }
664:
1.105 albertel 665: sub problem_web_to_edit_header {
1.159 albertel 666: my ($rndseed)=@_;
1.406 albertel 667: my $result .= '<div class="LC_edit_problem_header">';
668:
669: if (!$Apache::lonhomework::parsing_a_task) {
670: $result .=
671: '<div class="LC_edit_problem_header_title">'.
672: &mt('Problem Testing').
673: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
674: '</div>';
675: } else {
676: $result .=
677: '<div class="LC_edit_problem_header_title">'.
678: &mt('Task Testing').
679: '</div>';
680: }
681:
1.315 albertel 682: my $show_all_foils_text =
683: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 684: &mt('Show All Instances')
685: : &mt('Show All Foils');
1.315 albertel 686:
1.452 bisitz 687: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
688: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 689: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 690: $show_all.= ' /> '.$show_all_foils_text
691: .'</label></span>';
1.406 albertel 692:
693:
1.384 albertel 694:
1.406 albertel 695: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 696: if (!$Apache::lonhomework::parsing_a_task) {
697: $result.="
1.406 albertel 698: <div class='LC_edit_problem_header_row1'>
699: <span class=\"LC_nobreak\">
1.405 albertel 700: ".&mt("Problem Status:")."
1.235 albertel 701: <select name='problemstate'>
1.270 albertel 702: <option value=''></option>
1.235 albertel 703: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
704: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
705: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
706: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
707: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
708: </select>
1.406 albertel 709: </span>
710: <span class=\"LC_nobreak\">
1.405 albertel 711: ".&mt("Problem Type:")."
1.235 albertel 712: <select name='problemtype'>
1.270 albertel 713: <option value=''></option>
1.242 albertel 714: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 715: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 716: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 717: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
718: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
719: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 720: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 721: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 722: </select>
1.406 albertel 723: </span>
724: $show_all
725: </div>
726: <div class='LC_edit_problem_header_row2'>
727: <span class=\"LC_nobreak\">
1.405 albertel 728: ".&mt("Feedback Mode:")."
1.235 albertel 729: <select name='problemstatus'>
730: <option value=''></option>
1.242 albertel 731: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 732: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
733: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 734: </select>
1.406 albertel 735: </span>
736: ";
737:
1.376 albertel 738: } elsif ($Apache::lonhomework::parsing_a_task) {
739: $result.="
1.406 albertel 740: <div class='LC_edit_problem_header_row1'>
741: <span class=\"LC_nobreak\">
1.405 albertel 742: ".&mt("Problem Status:")."
1.376 albertel 743: <select name='problemstate'>
744: <option value=''></option>
745: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
746: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
747: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
748: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
749: </select>
1.406 albertel 750: </span>
751: $show_all
752: ";
753: }
754: $result.='
755: <span class="LC_nobreak">
756: '.&mt('Apply style file: ').'
757: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
758: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
759: </span>
1.422 www 760: </div>
761: <div class="LC_edit_problem_header_row1">'.
762: &Apache::lonxml::renderingoptions().'
1.406 albertel 763: </div>
764: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
765: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
766: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
767: </div>
1.453 bisitz 768: <hr />
1.406 albertel 769: <div class="LC_edit_problem_header_randomize_row">
770: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
771: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 772: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 773: $rndseed.'"
774: onchange="javascript:document.lonhomework.changerandseed.click()" />';
775:
776: if (!$Apache::lonhomework::parsing_a_task) {
777: my $numtoanalyze=$env{'form.numtoanalyze'};
778: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 779: $result .= '<span class="LC_nobreak">'.
780: &mt('[_1] for [_2] versions.',
1.416 raeburn 781: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 782: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
783: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 784: $numtoanalyze.'" size="5" />').
785: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
786: '</span>';
787:
1.313 albertel 788: }
1.406 albertel 789:
790: $result.='
791: </div>
1.453 bisitz 792: <hr />
1.447 bisitz 793: <div>';
1.416 raeburn 794: $result.='<input type="hidden" name="problemmode" value="view" />';
795: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
796: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
797: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
798: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 799: $result.='
800: </div>
1.453 bisitz 801: <hr />
1.409 albertel 802: '.&Apache::lonxml::message_location().'
1.406 albertel 803: </div>';
1.159 albertel 804: return $result;
1.48 albertel 805: }
806:
1.65 albertel 807: sub initialize_storage {
1.357 albertel 808: my ($given_symb) = @_;
1.353 albertel 809: undef(%Apache::lonhomework::results);
810: undef(%Apache::lonhomework::history);
1.357 albertel 811: my ($symb,$courseid,$domain,$name) =
1.367 albertel 812: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 813:
814: # anonymous users (CODEd exams) have no data
815: if ($name eq 'anonymous'
816: && !defined($domain)) {
817: return;
818: }
819:
1.333 albertel 820: if ($env{'request.state'} eq 'construct'
821: || $symb eq ''
822: || $Apache::lonhomework::type eq 'practice') {
823:
824: my $namespace = $symb || $env{'request.uri'};
825: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 826: ($env{'form.resetdata'} eq &mt('New Problem Variation')
827: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 828: $env{'form.newrandomization'} eq &mt('New Randomization')) {
829: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
830: &Apache::lonxml::debug("Attempt reset");
831: }
1.159 albertel 832: %Apache::lonhomework::history=
1.333 albertel 833: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 834: my ($temp)=keys %Apache::lonhomework::history ;
835: &Apache::lonxml::debug("Return message of $temp");
836: } else {
837: %Apache::lonhomework::history=
838: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
839: }
1.353 albertel 840:
1.159 albertel 841: #ignore error conditions
1.67 albertel 842: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 843: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 844: }
845:
1.435 jms 846: =pod
847:
848: =item finalize_storage()
849:
850: Stores away the result has to a student's environment
851: checks form.grade_ for specific values, other wises stores
852: to the running users environment
853: Will increment totals for attempts, students, and corrects
854: if running user has student role.
855:
856: =cut
857:
858:
1.65 albertel 859: sub finalize_storage {
1.357 albertel 860: my ($given_symb) = @_;
1.159 albertel 861: my $result;
1.289 albertel 862: if (%Apache::lonhomework::results) {
1.323 albertel 863: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
864: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 865: my ($symb,$courseid,$domain,$name) =
1.367 albertel 866: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 867: if ($env{'request.state'} eq 'construct'
868: || $symb eq ''
869: || $Apache::lonhomework::type eq 'practice') {
870: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 871: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 872: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 873: $namespace,'',$domain,$name);
1.159 albertel 874: &Apache::lonxml::debug('Construct Store return message:'.$result);
875: } else {
876: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
877: $symb,$courseid,$domain,$name);
878: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 879: &store_aggregates($symb,$courseid);
1.159 albertel 880: }
1.323 albertel 881: } else {
882: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 883: }
1.159 albertel 884: return $result;
1.65 albertel 885: }
886:
1.435 jms 887: =pod
888:
889: item store_aggregates()
890:
891: Sends hash of values to be incremented in nohist_resourcetracker.db
892: for the course. Increments total number of attempts, unique students
893: and corrects for each part for an instance of a problem, as appropriate.
894:
895: =cut
896:
1.285 raeburn 897: sub store_aggregates {
898: my ($symb,$courseid) = @_;
1.479 raeburn 899: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 900: my @parts;
1.288 albertel 901: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
902: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 903: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 904: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 905: push(@parts, $1);
1.285 raeburn 906: }
907: }
1.286 albertel 908: foreach my $part (@parts) {
1.470 raeburn 909: if ($env{'request.role'} =~/^st/) {
910: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
911: eq 'APPROX_ANS' ||
912: $Apache::lonhomework::results{'resource.'.$part.'.award'}
913: eq 'EXACT_ANS') {
914: $aggregate{$symb."\0".$part."\0correct"} = 1;
915: }
916: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
917: $aggregate{$symb."\0".$part."\0users"} = 1;
918: } else {
919: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
920: if ($last_reset) {
921: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
922: $aggregate{$symb."\0".$part."\0users"} = 1;
923: }
924: }
925: }
926: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 927: }
1.470 raeburn 928: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 929: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
930: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
931: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
932: $randtrycounter{$symb."\0".$part} = 1;
933: } else {
934: $anoncounter{$symb."\0".$part} = 1;
935: }
1.470 raeburn 936: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
937: if ($needsrelease) {
938: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
939: if ($curr_required eq '') {
1.471 raeburn 940: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 941: } else {
942: my ($currmajor,$currminor) = split(/\./,$curr_required);
943: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
944: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 945: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 946: }
1.292 raeburn 947: }
948: }
1.285 raeburn 949: }
950: }
1.292 raeburn 951: if (keys (%aggregate) > 0) {
1.289 albertel 952: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 953: $cdomain,$cname);
954: }
1.472 raeburn 955: if (keys(%anoncounter) > 0) {
1.481 raeburn 956: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
957: $cdomain,$cname);
1.472 raeburn 958: }
1.479 raeburn 959: if (keys(%randtrycounter) > 0) {
1.481 raeburn 960: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
961: $cdomain,$cname);
1.479 raeburn 962: }
1.292 raeburn 963: }
1.289 albertel 964:
1.65 albertel 965: sub checkout_msg {
1.211 albertel 966: my %lt=&Apache::lonlocal::texthash(
967: 'resource'=>'The resource needs to be checked out',
968: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
969: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
970: 'checkout'=>'Check out Exam for Viewing',
971: 'checkout?'=>'Check out Exam?');
1.352 albertel 972: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 973: return (<<ENDCHECKOUT);
1.211 albertel 974: <h2>$lt{'resource'}</h2>
975: <p>$lt{'id_expln'}</p>
1.449 bisitz 976: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 977: <form name="checkout" method="post" action="$uri">
1.91 albertel 978: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 979: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 980: </form>
981: ENDCHECKOUT
982: }
983:
1.252 albertel 984: sub firstaccess_msg {
1.253 albertel 985: my ($time,$symb)=@_;
1.414 albertel 986: my $result;
987: my @interval=&Apache::lonnet::EXT("resource.0.interval");
988: if ($interval[1] eq 'map') {
989: my ($map)=&Apache::lonnet::decode_symb($symb);
990: my $foldertitle=&Apache::lonnet::gettitle($map);
991:
992: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 993: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
994: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
995: ,$foldertitle,$time)."</p>";
1.414 albertel 996: } elsif ($interval[1] eq 'course') {
997: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 998: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 999: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1000: ,$course,$time)."</p>";
1.414 albertel 1001: } else {
1002: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1003: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1004: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1005: ,$title,$time)."</p>";
1.414 albertel 1006: }
1.352 albertel 1007: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1008: my $buttontext = &mt('Show Resource');
1009: my $timertext = &mt('Start Timer?');
1.414 albertel 1010: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1011: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1012: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 1013: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1014: </form>
1015: ENDCHECKOUT
1.414 albertel 1016: return $result;
1.252 albertel 1017: }
1018:
1.204 albertel 1019: sub init_problem_globals {
1020: my ($type)=@_;
1021: #initialize globals
1.308 foxr 1022: # For problems, we start out in part 0 (outside a <part> tag).
1023: # and part 0 is used to describe the main body of the <problem>
1024: #
1.204 albertel 1025: if ($type eq 'problem') {
1026: $Apache::inputtags::part='0';
1027: @Apache::inputtags::partlist=('0');
1.405 albertel 1028: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1029: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1030:
1.266 albertel 1031: } elsif ($type eq 'library') {
1.204 albertel 1032: $Apache::inputtags::part='';
1033: @Apache::inputtags::partlist=();
1.405 albertel 1034: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1035: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1036:
1.304 albertel 1037: } elsif ($type eq 'Task') {
1038: $Apache::inputtags::part='0';
1039: @Apache::inputtags::partlist=('0');
1.405 albertel 1040: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1041: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1042: }
1.477 www 1043: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1044: @Apache::inputtags::responselist = ();
1045: @Apache::inputtags::importlist = ();
1046: @Apache::inputtags::previous=();
1047: @Apache::inputtags::previous_version=();
1048: $Apache::structuretags::printanswer='No';
1049: @Apache::structuretags::whileconds=();
1050: @Apache::structuretags::whilebody=();
1051: @Apache::structuretags::whileline=();
1052: $Apache::lonhomework::scantronmode=0;
1053: undef($Apache::lonhomework::name);
1.358 albertel 1054: undef($Apache::lonhomework::default_type);
1055: undef($Apache::lonhomework::type);
1.204 albertel 1056: }
1057:
1058: sub reset_problem_globals {
1059: my ($type)=@_;
1060: undef(%Apache::lonhomework::history);
1061: undef(%Apache::lonhomework::results);
1062: undef($Apache::inputtags::part);
1.498 raeburn 1063: if ($type eq 'Task') {
1064: undef($Apache::inputtags::slot_name);
1065: }
1.208 albertel 1066: #don't undef this, lonhomework.pm takes care of this, we use this to
1067: #detect if we try to do 2 problems in one file
1068: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1069: undef($Apache::lonhomework::name);
1.358 albertel 1070: undef($Apache::lonhomework::default_type);
1071: undef($Apache::lonhomework::type);
1072: undef($Apache::lonhomework::scantronmode);
1073: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1074: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1075: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1076: }
1077:
1.241 albertel 1078: sub set_problem_state {
1.240 albertel 1079: my ($part)=@_;
1.284 albertel 1080: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1081: $Apache::lonhomework::history{"resource.$part.solved"}=
1082: 'correct_by_student';
1083: }
1084: }
1085:
1.241 albertel 1086: sub get_problem_status {
1087: my ($part)=@_;
1.267 albertel 1088: my $problem_status;
1.284 albertel 1089: if ($env{'request.state'} eq 'construct' &&
1090: defined($env{'form.problemstatus'})) {
1091: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1092: } else {
1093: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1094: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1095: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1096: }
1097: return $problem_status;
1098: }
1099:
1.9 albertel 1100: sub start_problem {
1.326 albertel 1101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1102:
1.311 foxr 1103: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1104: if (!$Apache::lonxml::metamode) {
1105: &Apache::lonxml::startredirection();
1106: }
1.311 foxr 1107:
1.308 foxr 1108: # Problems don't nest and we don't allow more than one <problem> in
1109: # a .problem file.
1110: #
1.184 albertel 1111: if ( $Apache::inputtags::part ne '' ||
1112: $Apache::lonhomework::parsing_a_problem) {
1113: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1114: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1115: return '';
1116: }
1.184 albertel 1117:
1118: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1119: &init_problem_globals('problem');
1.166 albertel 1120:
1.284 albertel 1121: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1122: $Apache::lonhomework::scantronmode=1;
1123: }
1.161 albertel 1124:
1.159 albertel 1125: if ($target ne 'analyze') {
1.415 raeburn 1126: my $type = &Apache::lonnet::EXT('resource.0.type');
1127: $Apache::lonhomework::type=$type;
1.284 albertel 1128: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1129: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1130: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1131: }
1.332 albertel 1132: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1133: }
1.164 albertel 1134: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1135: my $uri=$env{'request.uri'};
1.159 albertel 1136: if ($uri=~/\.(\w+)$/) {
1137: $Apache::lonhomework::type=$1;
1138: &Apache::lonxml::debug("Using type of $1");
1139: } else {
1140: $Apache::lonhomework::type='problem';
1141: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1142: }
1.87 albertel 1143: }
1.301 albertel 1144: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1145:
1.363 albertel 1146: &initialize_storage();
1.389 albertel 1147: if ($target ne 'analyze'
1148: && $env{'request.state'} eq 'construct') {
1149: &set_problem_state('0');
1150: }
1151:
1.366 albertel 1152: if ($target eq 'web') {
1153: &Apache::lonxml::debug(" grading history ");
1154: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1155: }
1.363 albertel 1156:
1.159 albertel 1157: #added vars to the scripting enviroment
1.213 albertel 1158: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1159: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1160: &Apache::run::run($expression,$safeeval);
1.159 albertel 1161: my $status;
1162: my $accessmsg;
1163:
1.343 albertel 1164: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1165: my ($result,$form_tag_start,$slot_name,$slot);
1166:
1167: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1168: $target eq 'tex') {
1169: if ($env{'form.markaccess'}) {
1170: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1171: &Apache::lonnet::set_first_access($interval[1]);
1172: }
1173:
1174: ($status,$accessmsg,$slot_name,$slot) =
1175: &Apache::lonhomework::check_slot_access('0','problem');
1176: push (@Apache::inputtags::status,$status);
1177: }
1178:
1.354 albertel 1179: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1180: || $target eq 'edit') {
1.350 albertel 1181: ($result,$form_tag_start) =
1182: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1183: $name);
1184: }
1185:
1.284 albertel 1186: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1187:
1.479 raeburn 1188: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1189: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1190: $target eq 'tex') {
1.479 raeburn 1191:
1.506 raeburn 1192: if ($status eq 'CAN_ANSWER') {
1193: my $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1194: my $time_left = $resource_due - time();
1195: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1196: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1197: }
1198: }
1.479 raeburn 1199:
1.159 albertel 1200: #handle rand seed in construction space
1.479 raeburn 1201: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1202: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1203:
1.333 albertel 1204: if ($env{'request.state'} ne "construct" &&
1205: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1206: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1207: $rndseed.'" />'.
1208: '<input type="submit" name="resetdata"
1209: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1210: if (exists($env{'form.username'})) {
1211: $form_tag_start.=
1.164 albertel 1212: '<input type="hidden" name="username"
1.284 albertel 1213: value="'.$env{'form.username'}.'" />';
1.334 albertel 1214: }
1.462 raeburn 1215: if ($env{'request.role.adv'}) {
1216: $form_tag_start.= ' <label class="LC_nobreak">'
1217: .'<input type="checkbox" name="showallfoils"';
1218: if (defined($env{'form.showallfoils'})) {
1219: $form_tag_start.=' checked="checked"';
1220: }
1221: $form_tag_start.= ' /> '
1222: .&mt('Show All Foils')
1223: .'</label>';
1224: }
1.417 www 1225: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1226: $form_tag_start.=&practice_problem_header();
1.417 www 1227: }
1.462 raeburn 1228: $form_tag_start.='<hr />';
1.479 raeburn 1229: } elsif (($env{'request.state'} ne "construct") &&
1230: ($Apache::lonhomework::type eq 'randomizetry') &&
1231: ($status eq 'CAN_ANSWER')) {
1232: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1233: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1234: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1235: }
1.324 albertel 1236:
1.159 albertel 1237: my $expression='$external::datestatus="'.$status.'";';
1238: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1239: &Apache::run::run($expression,$safeeval);
1240: &Apache::lonxml::debug("Got $status");
1.324 albertel 1241:
1.159 albertel 1242: if (( $status eq 'CLOSED' ) ||
1243: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1244: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1245: ( $status eq 'BANNED') ||
1.216 albertel 1246: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1247: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1248: ( $status eq 'NOTRESERVABLE') ||
1249: ( $status eq 'RESERVABLE') ||
1250: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1251: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1252: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1253: $style);
1.159 albertel 1254: if ( $target eq "web" ) {
1.343 albertel 1255: my $msg;
1.159 albertel 1256: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1257: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1258: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1259: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1260: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1261: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1262: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1263: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1264: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1265: }
1.216 albertel 1266: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1267: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1268: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1269: $msg.=&checkout_msg();
1.252 albertel 1270: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1271: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1272: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1273: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1274: } elsif ($status eq 'RESERVABLE') {
1275: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1276: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1277: '<br />'.
1278: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1279: } elsif ($status eq 'RESERVABLE_LATER') {
1280: $msg.=&mt('Window to make a reservation will open [_1].',
1281: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1282: } elsif ($status eq 'NOTRESERVABLE') {
1283: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1284: }
1285: $result.=$msg.'<br />';
1286: } elsif ($target eq 'tex') {
1.332 albertel 1287: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1288: : '\begin{minipage}{\textwidth}';
1.443 foxr 1289: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1290: $startminipage.'\vskip 0 mm';
1.159 albertel 1291: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1292: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1293: } else {
1.211 albertel 1294: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1295: }
1296: }
1.324 albertel 1297: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1298: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1299: $style);
1.324 albertel 1300: if ($target eq 'web') {
1.375 albertel 1301: $result .=
1302: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1303: } elsif ($target eq 'grade') {
1304: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1305: 'problem');
1306: }
1.159 albertel 1307: } elsif ($target eq 'web') {
1.360 albertel 1308: if ($status eq 'CAN_ANSWER'
1309: && $slot_name ne ''
1310: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1311: # unproctored slot access, self checkin
1312: &Apache::bridgetask::check_in('problem',undef,undef,
1313: $slot_name);
1314: }
1.368 albertel 1315: $result.="\n $form_tag_start \t".
1.227 albertel 1316: '<input type="hidden" name="submitted" value="yes" />';
1317: # create a page header and exit
1.284 albertel 1318: if ($env{'request.state'} eq "construct") {
1319: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1320: if ($Apache::lonhomework::type eq 'practice') {
1321: $result.= '<input type="submit" name="resetdata" '.
1322: 'value="'.&mt('New Problem Variation').'" />'.
1323: &practice_problem_header().'<hr />';
1324: }
1.227 albertel 1325: }
1326: # if we are viewing someone else preserve that info
1.284 albertel 1327: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1328: foreach my $field ('symb','courseid','domain','username') {
1329: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1330: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1331: }
1.479 raeburn 1332: foreach my $field ('trial','questiontype') {
1333: if ($env{"form.grade_$field"} ne '') {
1334: $result .= '<input type="hidden" name="grade_'.$field.
1335: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1336: }
1337: }
1.159 albertel 1338: }
1.490 raeburn 1339: if ($env{'form.grade_imsexport'}) {
1340: $result = '';
1341: }
1.159 albertel 1342: } elsif ($target eq 'tex') {
1.319 foxr 1343: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1344: $result .= &select_metadata_hyphenation();
1345:
1.319 foxr 1346:
1.99 sakharuk 1347: }
1.159 albertel 1348: } elsif ($target eq 'edit') {
1.343 albertel 1349: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1350: $Apache::lonxml::warnings_error_header=
1351: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 1352: my $temp=&Apache::edit::insertlist($target,$token);
1353: $result.=$temp;
1354: } elsif ($target eq 'modified') {
1355: $result=$token->[4];
1356: } else {
1357: # page_start returned a starting result, delete it if we don't need it
1358: $result = '';
1.99 sakharuk 1359: }
1.159 albertel 1360: return $result;
1.9 albertel 1361: }
1362:
1363: sub end_problem {
1.159 albertel 1364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1365: my $result;
1.310 foxr 1366:
1.321 albertel 1367: if (!$Apache::lonxml::metamode) {
1368: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1369: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1370: }
1.319 foxr 1371:
1372: if ($target eq 'tex') {
1.321 albertel 1373: # Figure out the front matter and replace the
1374: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1375: # this in end_problem because whether or not we display due
1376: # dates depends on whether due dates have already been
1377: # displayed in the problem parts.
1378:
1.319 foxr 1379: my $frontmatter = '';
1380: my $startminipage = '';
1381: if (not $env{'form.problem_split'}=~/yes/) {
1382: $startminipage = '\begin{minipage}{\textwidth}';
1383: }
1384: my $id = $Apache::inputtags::part;
1385: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1386: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1387: my @packages = split /,/,$packages;
1388: my $allow_print_points = 0;
1389: foreach my $partial_key (@packages) {
1390: if ($partial_key=~m/^part_0$/) {
1391: $allow_print_points=1;
1392: }
1393: }
1394: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1395: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1396: if (lc($env{'course.'.$env{'request.course.id'}.
1397: '.disableexampointprint'}) eq 'yes') {
1398: $allow_print_points=0;
1399: }
1400: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1401: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.500 foxr 1402: &clear_required_languages();
1.319 foxr 1403: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1404: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1405:
1406: # Figure out what the due date is and if we need to print
1407: # it in the problem header. We have been logging the
1408: # last due date written to file.
1409:
1410: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1411: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1412: my $duedate_text = &mt('Due date: [_1]'
1413: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1414: my $temp_file;
1415: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1416:
1417: # Figure out what the last printed due date is or set it
1418: # to the epoch if no duedates have been printed.
1419:
1420: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1421: if (-e $filename) {
1422: $temp_file = Apache::File->new($filename);
1423: my @due_file = <$temp_file>;
1424: $due_file_content = $due_file[$#due_file];
1425: chomp $due_file_content;
1426: }
1427:
1428: # We display the due date iff it is not the same as the last
1429: # duedate in problem header ($due_file_content), and
1430: # none of our parts displayed a duedate.
1431: #
1432: my $parts_with_displayduedate;
1433: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1434: $parts_with_displayduedate =
1435: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1436: } else {
1437: $parts_with_displayduedate = 0;
1438: }
1439: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1440: $temp_file = Apache::File->new('>'.$filename);
1441: print $temp_file "$duetime\n";
1442: if (not $env{'request.symb'} =~ m/\.page_/) {
1443: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1444: $frontmatter .= $begin_doc.
1.448 bisitz 1445: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1446: } else {
1447: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1448: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1449: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1450: }
1.319 foxr 1451: }
1452: } else {
1.448 bisitz 1453: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1454: }
1455: } else {
1456: if (not $env{'request.symb'} =~ m/\.page_/) {
1457: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1458: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1459: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1460: }
1.319 foxr 1461: } else {
1.381 albertel 1462: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1463: }
1464: }
1465: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1466: }
1467:
1.159 albertel 1468: my $status=$Apache::inputtags::status['-1'];
1469: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1470: $target eq 'tex') {
1.249 albertel 1471: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1472: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1473: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1474: &Apache::inputtags::grade;
1.324 albertel 1475: } elsif ($status eq 'NEEDS_CHECKIN') {
1476: # no need to grade, and don't want to hide data
1.249 albertel 1477: } else {
1478: # move any submission data to .hidden
1479: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1480: }
1.159 albertel 1481: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1482: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1483: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1484: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1485: # if part is zero, no <part>s existed, so we need show the current
1486: # grading status
1487: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1488: $result.= $gradestatus;
1489: }
1490: if (
1.284 albertel 1491: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1492: ($target eq 'answer') || ($target eq 'tex')
1493: ) {
1.490 raeburn 1494: if (($target ne 'tex') &&
1495: ($env{'form.answer_output_mode'} ne 'tex') &&
1496: (!$env{'form.grade_imsexport'})) {
1.254 www 1497: $result.="</form>";
1.159 albertel 1498: }
1499: if ($target eq 'web') {
1.507 ! raeburn 1500: #
! 1501: # Closing </body></html> not added by end_page().
! 1502: # Added separately at end of this routine, after added
! 1503: # <script></script> so document will be valid xhtml.
! 1504: #
! 1505: $result.= &Apache::loncommon::end_page({'discussion' => 1,
! 1506: 'notbody' => 1});
1.159 albertel 1507: } elsif ($target eq 'tex') {
1.178 sakharuk 1508: my $endminipage = '';
1.284 albertel 1509: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1510: $endminipage = '\end{minipage}';
1511: }
1.284 albertel 1512: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1513: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1514: } else {
1.262 sakharuk 1515: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1516: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1517: $result .= $endminipage.'\end{document} ';
1518: } else {
1.382 albertel 1519: $result .= $endminipage;
1.262 sakharuk 1520: }
1.159 albertel 1521: }
1522: }
1523: }
1.476 www 1524: if ($target eq 'web') {
1525: $result.=&Apache::functionplotresponse::init_script();
1526: }
1.159 albertel 1527: if ($target eq 'grade') {
1528: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1529: &finalize_storage();
1530: }
1.284 albertel 1531: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1532: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1533: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1534: # normally we get it from above, but in CSTR
1.172 albertel 1535: # we always show answer mode too.
1.159 albertel 1536: }
1537: } elsif ($target eq 'meta') {
1538: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1539: @Apache::inputtags::response=();
1.159 albertel 1540: $result=&Apache::response::mandatory_part_meta;
1541: }
1.215 albertel 1542: $result.=&Apache::response::meta_part_order();
1.258 albertel 1543: $result.=&Apache::response::meta_response_order();
1.159 albertel 1544: } elsif ($target eq 'edit') {
1545: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1546: $result .= &problem_edit_footer();
1.320 albertel 1547: } elsif ($target eq 'modified') {
1548: $result .= $token->[2];
1.159 albertel 1549: }
1.155 albertel 1550:
1.284 albertel 1551: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1552: &Apache::inputtags::check_for_duplicate_ids();
1553: }
1.204 albertel 1554:
1555: &reset_problem_globals('problem');
1.159 albertel 1556:
1.502 foxr 1557: #
1558: # This shouild be just above the return so that the
1559: # time put in the javascript is as late as possible in the
1560: # computation:
1561: #
1562: if ($target eq 'web') {
1563: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 ! raeburn 1564: #
! 1565: # Closing tags delayed so any <script></script> tags
! 1566: # not in head can appear inside body, for valid xhtml.
! 1567: #
! 1568: $result .= "</body>\n</html>";
1.502 foxr 1569: }
1.159 albertel 1570: return $result;
1.48 albertel 1571: }
1572:
1.108 albertel 1573:
1.48 albertel 1574: sub start_library {
1.159 albertel 1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1576: my ($result,$form_tag_start);
1.371 albertel 1577: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1578: &init_problem_globals('library');
1579: $Apache::lonhomework::type='problem';
1580: }
1.159 albertel 1581: if ($target eq 'edit') {
1.343 albertel 1582: ($result,$form_tag_start)=
1583: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1584: 'Edit');
1585: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1586: my $temp=&Apache::edit::insertlist($target,$token);
1587: $result.=$temp;
1588: } elsif ($target eq 'modified') {
1589: $result=$token->[4];
1.340 albertel 1590: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1591: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1592: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1593: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1594: ($result,$form_tag_start)=
1595: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1596: $name);
1.479 raeburn 1597: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1598: $result.=" \n $form_tag_start".
1.159 albertel 1599: '<input type="hidden" name="submitted" value="yes" />';
1600: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1601: if ($Apache::lonhomework::type eq 'practice') {
1602: $result.= '<input type="submit" name="resetdata" '.
1603: 'value="'.&mt('New Problem Variation').'" />'.
1604: &practice_problem_header().'<hr />';
1605: }
1.159 albertel 1606: }
1607: return $result;
1.48 albertel 1608: }
1609:
1610: sub end_library {
1.159 albertel 1611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1612: my $result='';
1613: if ($target eq 'edit') {
1614: $result=&problem_edit_footer();
1.371 albertel 1615: } elsif ($target eq 'web'
1616: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1617: && $env{'request.state'} eq "construct") {
1.349 albertel 1618: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1619: }
1.371 albertel 1620: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1621: &reset_problem_globals('library');
1622: }
1.159 albertel 1623: return $result;
1.197 www 1624: }
1625:
1626: sub start_definetag {
1.326 albertel 1627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1628:
1629: my $result;
1630:
1631: my $name = $token->[2]->{'name'};
1.326 albertel 1632: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1633: if ($target eq 'web') {
1634: if ($name=~/^\//) {
1635: $result=
1636: '<br /><table class="LC_sty_end"><tr><th>'.
1637: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1638: } else {
1639: $result=
1640: '<br /><table class="LC_sty_begin"><tr><th>'.
1641: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1642: }
1643: $skip = &HTML::Entities::encode($skip, '<>&"');
1644: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1645: }
1646: return $result;
1647: }
1648:
1649: sub end_definetag {
1650: return '';
1.1 albertel 1651: }
1652:
1653: sub start_block {
1.201 albertel 1654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1655:
1656: my $result;
1.1 albertel 1657:
1.339 albertel 1658: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1659: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1660: my $code = $token->[2]->{'condition'};
1.385 albertel 1661: if (defined($code) && $code ne '') {
1.137 albertel 1662: if (!$Apache::lonxml::default_homework_loaded) {
1663: &Apache::lonxml::default_homework_load($safeeval);
1664: }
1.131 albertel 1665: $result = &Apache::run::run($code,$safeeval);
1666: &Apache::lonxml::debug("block :$code: returned :$result:");
1667: } else {
1668: $result='1';
1669: }
1670: if ( ! $result ) {
1.201 albertel 1671: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1672: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1673: }
1674: $result='';
1675: } elsif ($target eq 'edit') {
1676: $result .=&Apache::edit::tag_start($target,$token);
1677: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1678: $token,40);
1679: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1680: } elsif ($target eq 'modified') {
1681: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1682: $safeeval,'condition');
1683: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1684: }
1.131 albertel 1685: return $result;
1.1 albertel 1686: }
1687:
1688: sub end_block {
1.167 www 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1690: my $result;
1691: if ($target eq "edit") {
1692: $result.= &Apache::edit::tag_end($target,$token,'');
1693: }
1694: return $result;
1695: }
1.500 foxr 1696: #
1697: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1698: # ...
1699: # </languageblock>
1700: #
1701: # This declares the intent to provide content that can be rendered in the
1702: # set of languages in the include specificatino but not in the exclude
1703: # specification. If a currently preferred language is in the include list
1704: # the content in the <languageblock>...</languageblock> is rendered
1705: # If the currently preferred language is in the exclude list,
1706: # the content in the <languageblock>..></languageblock is not rendered.
1707: #
1708: # Pathalogical case handling:
1709: # - Include specified, without the preferred language but exclude specified
1710: # also without the preferred langauge results in rendering the block.
1711: # - Exclude specified without include and excluden not containing a
1712: # preferred language renders the block.
1713: # - Include and exclude both specifying the preferred language does not
1714: # render the block.
1715: # - If neither include/exclude is specified, the block gets rendered.
1716: #
1717: # This tag has no effect when target is in {edit, modified}
1718: #
1.167 www 1719: sub start_languageblock {
1.201 albertel 1720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1721:
1.500 foxr 1722: my $result = '';
1.167 www 1723:
1.339 albertel 1724: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1725: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1726: my $include = $token->[2]->{'include'};
1727: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1728: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1729:
1730: # This should not even happen, since we should at least have the server language
1731:
1732: if (!$preferred_languages[0]) {
1733: $preferred_languages[0]='en';
1734: }
1735:
1736: # Now loop over all languages in order of preference
1737:
1738: my $render;
1.398 www 1739: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1740:
1741: # If neither include/nor exlude is present the block is going
1742: # to get rendered.
1743:
1.399 www 1744: my $found=0;
1.500 foxr 1745: $render=1;
1746:
1747: # If include is specified, don't render the block
1748: # unless the preferred language is included in the set.
1749:
1.398 www 1750: if ($include) {
1.500 foxr 1751: $render=0;
1.398 www 1752: foreach my $included_language (split(/\,/,$include)) {
1753: if ($included_language eq $preferred_language) {
1.500 foxr 1754: $render=1;
1.399 www 1755: $found=1;
1.500 foxr 1756: last; # Only need to find the first.
1.398 www 1757: }
1758: }
1759: }
1.500 foxr 1760: # Do we have an exclude argument?
1761: # If so, and one of the languages matches a preferred language
1762: # inhibit rendering the block. Note that in the pathalogical case the
1763: # author has specified a preferred language in both the include and exclude
1764: # attribte exclude is preferred.
1765:
1.398 www 1766: if ($exclude) {
1.500 foxr 1767: $render=1;
1.398 www 1768: foreach my $excluded_language (split(/\,/,$exclude)) {
1769: if ($excluded_language eq $preferred_language) {
1.500 foxr 1770: $render=0;
1.399 www 1771: $found=1;
1.500 foxr 1772: last; # Only need to find the first.
1.398 www 1773: }
1774: }
1775: }
1.500 foxr 1776: if ($found) {
1777: last; # Done on any match of include or exclude.
1778: }
1.398 www 1779: }
1.500 foxr 1780: # If $render not true skip the entire block until </languageblock>
1781: #
1782:
1783: if ( ! $render ) {
1.201 albertel 1784: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1785: $style);
1786: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1787: }
1.500 foxr 1788: # If $render is true, we've not skipped the contents of the <languageglock>
1789: # and the normal loncapa processing flow will render it as a matter of course.
1790:
1.167 www 1791: } elsif ($target eq 'edit') {
1792: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1793: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1794: $token,40);
1.211 albertel 1795: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1796: $token,40);
1797: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1798: } elsif ($target eq 'modified') {
1799: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1800: $safeeval,'include',
1801: 'exclude');
1.167 www 1802: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1803: }
1804: return $result;
1805: }
1806:
1807: sub end_languageblock {
1.170 www 1808: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1809: my $result;
1.201 albertel 1810: if ($target eq "edit") {
1.170 www 1811: $result.= &Apache::edit::tag_end($target,$token,'');
1812: }
1813: return $result;
1814: }
1.500 foxr 1815: # languagblock specific tags:
1816: {
1817: # For chunks of a resource that has translations, this hash contains
1818: # the translations available indexed by language name.
1819: #
1820:
1821: my %available_texts;
1.170 www 1822:
1.500 foxr 1823: # <translated> starts a block of a resource that has multiple translations.
1824: # See the <lang> tag as well.
1825: # When </translated> is encountered if there is a translation for the
1826: # currently preferred language, that is rendered inthe web/tex/webgrade
1827: # targets. Otherwise, the default text is rendered.
1828: #
1829: # Note that <lang> is only registered for the duration of the
1830: # <translated>...</translated> block
1831: #
1832: # Pathalogical case handling:
1833: # - If there is no <lang> that specifies a 'default' and there is no
1834: # translation that matches a preferred language, nothing is rendered.
1835: # - Nested <translated>...</translated> might be linguistically supported by
1836: # XML due to the stack nature of tag registration(?) however the rendered
1837: # output will be incorrect because there is only one %available_texts
1838: # has and end_translated clears it.
1839: # - Material outside of a <lang>...</lang> block within the
1840: # <translated>...<translated> block won't render either e.g.:
1841: # <translated>
1842: # The following will be in your preferred langauge:
1843: # <lang which='en'>
1844: # This section in english
1845: # </lang>
1846: # <lang which='sgeiso'>
1847: # Hier es ist auf Deutsch.
1848: # </lang>
1849: # <lang which='sfriso'>
1850: # En Francais
1851: # </lang>
1852: # </translated>
1853: #
1854: # The introductory text prior to the first <lang> tag is not rendered.
1855: #
1.397 albertel 1856: sub start_translated {
1857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1858: &Apache::lonxml::register('Apache::structuretags',('lang'));
1859: undef(%available_texts);
1860: }
1861:
1862: sub end_translated {
1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1864: my $result;
1865: #show the translation on viewable targets
1866: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1867: # or non-viewable targets, if it's embedded in something that
1868: # wants the output
1869: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1870: && &Apache::lonxml::in_redirection() ) ) {
1871: my @possibilities = keys(%available_texts);
1872: my $which =
1873: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1874: if ($target eq 'tex') {
1875: $result = &select_hyphenation($which);
1876: }
1877: $result .= $available_texts{$which};
1878: if ($target eq 'tex') {
1879: $result .= &select_metadata_hyphenation(); # Restore original language.
1880: }
1.397 albertel 1881: }
1882: undef(%available_texts);
1883: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1884: return $result;
1885: }
1886:
1.500 foxr 1887: # <lang [which='language-name'] [other='lang1,lang2...']>
1888: # Specifies that the block contained within it is a translation
1889: # for a specific language specified by the 'which' attribute. The
1890: # 'other' attribute can be used by itself or in conjunction with
1891: # which to specify this tag _may_ be used as a translation for some
1892: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1893: # specifying that the block provides a translation for US (primary)
1894: # Canadian, Australian and UK Englush.
1895: #
1896: # Comment: this seems a bit silly why not just support a list of languages
1897: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1898: #
1899: # Effect:
1900: # The material within the <lang>..</lang> block is stored in the
1901: # specified set of $available_texts hash entries, the appropriate one
1902: # is selected at </translated> time.
1903: #
1904: # Pathalogical case handling:
1905: # If a language occurs multiple times within a <translated> block,
1906: # only the last one is rendered e.g.:
1907: #
1908: # <translated>
1909: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1910: # Red green color blindness is quite common affecting about 7.8% of
1911: # the male population, but onloy about .65% of the female population.
1912: # </lang>
1913: # Red green colour blindness is quite common affecting about 7.8% of
1914: # the male population, but onloy about .65% of the female population.
1915: # <lang which='seniso', other='senisoCA,senisoAU'>
1916: # </translated>
1917: #
1918: # renders the correct spelling of color (colour) for people who have specified
1919: # a preferred language that is one of the British Commonwealth languages
1920: # even though those are also listed as valid selections for the US english
1921: # <lang> block.
1922: #
1.397 albertel 1923: sub start_lang {
1924: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1925: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1926: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1927: &Apache::lonxml::startredirection();
1928: }
1929: return '';
1930: }
1931:
1932: sub end_lang {
1933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1935: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1936: my $result = &Apache::lonxml::endredirection();
1937: my $which = &Apache::lonxml::get_param('which',$parstack,
1938: $safeeval);
1.431 raeburn 1939: if ($which=~/\w/) {
1940: $available_texts{$which} = $result;
1941: }
1942: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1943: $safeeval);
1944: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1945: if ($language=~/\w/) {
1946: $available_texts{$language} = $result;
1947: }
1.427 bisitz 1948: }
1949:
1.397 albertel 1950: }
1951: return '';
1952: }
1.500 foxr 1953: } # end langauge block specific tags.
1954:
1.397 albertel 1955:
1.170 www 1956: sub start_instructorcomment {
1.201 albertel 1957: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1958:
1959: my $result;
1960:
1.339 albertel 1961: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1962: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1963: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1964: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1965: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1966: $parser,$style);
1.170 www 1967: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1968: }
1969: $result='';
1970: } elsif ($target eq 'edit') {
1971: $result .=&Apache::edit::tag_start($target,$token);
1972: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1973: }
1974: return $result;
1975: }
1976:
1977: sub end_instructorcomment {
1.159 albertel 1978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1979: my $result;
1980: if ($target eq "edit") {
1981: $result.= &Apache::edit::tag_end($target,$token,'');
1982: }
1983: return $result;
1.4 tsai 1984: }
1985:
1986: sub start_while {
1.326 albertel 1987: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1988:
1.160 albertel 1989: my $result;
1.339 albertel 1990: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1991: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1992: my $code = $token->[2]->{'condition'};
1.4 tsai 1993:
1.160 albertel 1994: push( @Apache::structuretags::whileconds, $code);
1995: if (!$Apache::lonxml::default_homework_loaded) {
1996: &Apache::lonxml::default_homework_load($safeeval);
1997: }
1998: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1999: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2000: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2001: push( @Apache::structuretags::whileline, $token->[5]);
2002: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2003: if ( $result ) {
2004: &Apache::lonxml::newparser($parser,\$bodytext);
2005: }
2006: } elsif ($target eq 'edit') {
2007: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2008: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2009: $token,40);
2010: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2011: } elsif ($target eq 'modified') {
2012: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2013: $safeeval,'condition');
2014: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2015: }
1.160 albertel 2016: return $result;
1.4 tsai 2017: }
2018:
2019: sub end_while {
1.159 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2021: my $result;
2022:
1.339 albertel 2023: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2024: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2025: my $code = pop(@Apache::structuretags::whileconds);
2026: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2027: my $line = pop(@Apache::structuretags::whileline);
2028: my $return = &Apache::run::run($code,$safeeval);
2029: my $starttime=time;
2030: my $error=0;
2031: while ($return) {
2032: if (time-$starttime >
2033: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2034: $return = 0; $error=1; next;
1.161 albertel 2035: }
2036: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2037: if ($target eq 'grade' || $target eq 'answer' ||
2038: $target eq 'analyze') {
2039: # grade/answer/analyze should produce no output but if we
2040: # are redirecting, the redirecter should know what to do
2041: # with the output
2042: if (!$Apache::lonxml::redirection) { undef($result); }
2043: }
1.161 albertel 2044: $return = &Apache::run::run($code,$safeeval);
2045: }
2046: if ($error) {
1.430 bisitz 2047: &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 2048: }
2049: } elsif ($target eq "edit") {
2050: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2051: }
1.160 albertel 2052: return $result;
1.1 albertel 2053: }
1.6 tsai 2054:
1.160 albertel 2055: # <randomlist show="1">
1.6 tsai 2056: # <tag1>..</tag1>
2057: # <tag2>..</tag2>
2058: # <tag3>..</tag3>
1.160 albertel 2059: # ...
1.6 tsai 2060: # </randomlist>
2061: sub start_randomlist {
1.326 albertel 2062: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2063: my $result;
1.339 albertel 2064: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2065: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2066: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2067: my $b_parser= HTML::LCParser->new(\$body);
2068: $b_parser->xml_mode(1);
2069: $b_parser->marked_sections(1);
1.159 albertel 2070: my $b_tok;
2071: my @randomlist;
2072: my $list_item;
2073: while($b_tok = $b_parser->get_token() ) {
2074: if($b_tok->[0] eq 'S') { # start tag
2075: # get content of the tag until matching end tag
2076: # get all text upto the matching tag
2077: # and push the content into @randomlist
2078: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2079: $b_parser);
2080: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2081: push(@randomlist,$list_item);
2082: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2083: # $list_item</b>";
2084: }
2085: if($b_tok->[0] eq 'T') { # text
2086: # what to do with text in between tags?
2087: # print "<b>TEXT $b_tok->[1]</b><br />";
2088: }
2089: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2090: # print "<b>END-TAG $b_tok->[1]</b><br />";
2091: # }
2092: }
1.303 albertel 2093: if (@randomlist) {
2094: my @idx_arr = (0 .. $#randomlist);
2095: &Apache::structuretags::shuffle(\@idx_arr);
2096: my $bodytext = '';
2097: my $show=$#randomlist;
2098: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2099: $showarg--;
2100: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2101: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2102: my @currlist;
2103: my $part = $Apache::inputtags::part;
2104: if ($part ne '') {
2105: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2106: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2107: if (!(grep(/^\Q$part\E$/,@currlist))) {
2108: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2109: }
2110: } else {
2111: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2112: }
2113: }
2114: }
1.303 albertel 2115: for(0 .. $show) {
2116: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2117: }
2118: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2119: }
2120: } elsif ($target eq 'edit' ) {
2121: $result .=&Apache::edit::tag_start($target,$token);
2122: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2123: $token,5);
2124: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2125: } elsif ($target eq 'modified' ) {
2126: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2127: $safeeval,'show');
2128: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2129: }
2130: return $result;
1.7 tsai 2131: }
2132:
2133: sub shuffle {
2134: my $a=shift;
2135: my $i;
1.303 albertel 2136: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2137: &Apache::response::pushrandomnumber();
1.159 albertel 2138: for($i=@$a;--$i;) {
2139: my $j=int(&Math::Random::random_uniform() * ($i+1));
2140: next if $i == $j;
2141: @$a[$i,$j] = @$a[$j,$i];
2142: }
1.251 albertel 2143: &Apache::response::poprandomnumber();
1.7 tsai 2144: }
1.6 tsai 2145: }
2146:
2147: sub end_randomlist {
1.159 albertel 2148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2149: my $result;
2150: if ($target eq 'edit' ) {
2151: $result=&Apache::edit::tag_end($target,$token,
2152: 'End Randomly Parsed Block');
2153: }
2154: return $result;
1.6 tsai 2155: }
2156:
1.283 albertel 2157: sub ordered_show_check {
2158: my $last_part=$Apache::inputtags::partlist[-2];
2159: my $in_order=
2160: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2161: my $in_order_show=1;
2162: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2163: $in_order_show=&Apache::response::check_status($last_part);
2164: }
2165: return $in_order_show;
2166: }
2167:
1.469 www 2168:
2169: sub start_startpartmarker {
2170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2171: my $result='';
2172: if ($target eq 'edit') {
2173: $result=&Apache::edit::tag_start($target,$token);
2174: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2175: $result.=&Apache::edit::end_table();
2176:
2177: }
2178: return $result;
2179: }
2180:
2181: sub end_startpartmarker {
2182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2183: my @result;
2184: if ($target eq 'edit') { $result[1]='no'; }
2185: return @result;
2186: }
2187:
2188: sub start_endpartmarker {
2189: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2190: my $result='';
2191: if ($target eq 'edit') {
2192: $result=&Apache::edit::tag_start($target,$token);
2193: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2194: $result.=&Apache::edit::end_table();
2195:
2196: }
2197: return $result;
2198: }
2199:
2200: sub end_endpartmarker {
2201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2202: my @result;
2203: if ($target eq 'edit') { $result[1]='no'; }
2204: return @result;
2205: }
2206:
2207:
2208:
2209:
2210:
1.11 albertel 2211: sub start_part {
1.326 albertel 2212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2213: if (!$Apache::lonxml::metamode) {
2214: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2215: # duedates.
2216: }
1.159 albertel 2217: my $result='';
1.386 albertel 2218: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2219: $Apache::inputtags::part=$id;
1.177 albertel 2220: push(@Apache::inputtags::partlist,$id);
2221: @Apache::inputtags::response=();
1.159 albertel 2222: @Apache::inputtags::previous=();
2223: @Apache::inputtags::previous_version=();
1.405 albertel 2224: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2225: &Apache::response::reset_params();
2226:
1.159 albertel 2227: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2228: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2229: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2230: my $in_order_show=&ordered_show_check();
1.214 albertel 2231: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2232: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2233: &Apache::run::run($expression,$safeeval);
1.159 albertel 2234:
2235: if ($target eq 'meta') {
1.224 www 2236: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2237: return &Apache::response::mandatory_part_meta.
2238: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2239: } elsif ($target eq 'web' || $target eq 'grade' ||
2240: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2241: if ($hidden || !$in_order_show) {
1.326 albertel 2242: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2243: } else {
2244: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2245: push (@Apache::inputtags::status,$status);
2246: my $expression='$external::datestatus="'.$status.'";';
2247: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2248: &Apache::run::run($expression,$safeeval);
1.284 albertel 2249: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2250: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2251: }
1.216 albertel 2252: if (( $status eq 'CLOSED' ) ||
2253: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2254: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2255: ( $status eq 'BANNED') ||
2256: ( $status eq 'UNAVAILABLE') ||
2257: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2258: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2259: $style);
1.159 albertel 2260: if ( $target eq "web" ) {
1.211 albertel 2261: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2262: } elsif ( $target eq 'tex' ) {
1.284 albertel 2263: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2264: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2265: } else {
1.211 albertel 2266: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2267: }
1.159 albertel 2268: }
2269: } else {
2270: if ($target eq 'tex') {
1.284 albertel 2271: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2272: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2273: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2274: } else {
2275: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2276: }
1.195 sakharuk 2277: }
1.159 albertel 2278: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2279: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2280: my @allkeys = split /,/,$allkeys;
2281: my $allow_print_points = 0;
2282: foreach my $partial_key (@allkeys) {
1.230 albertel 2283: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2284: if ($1 ne '0') {$allow_print_points=1;}
2285: }
2286: }
1.275 albertel 2287: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2288: if (defined($maxtries) && $maxtries < 0) {
2289: $allow_print_points=0;
2290: }
1.302 albertel 2291: if (lc($env{'course.'.$env{'request.course.id'}.
2292: '.disableexampointprint'}) eq 'yes') {
2293: $allow_print_points=0;
2294: }
1.463 foxr 2295: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2296: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2297:
2298: }
1.233 www 2299: } elsif ($target eq 'web') {
1.479 raeburn 2300: if ($status eq 'CAN_ANSWER') {
2301: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2302: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2303: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2304: my $num = scalar(@Apache::inputtags::partlist)-1;
2305: if ($probrandomize eq 'randomizetry') {
2306: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2307: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2308: } else {
2309: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2310: if ($probrandtries ne $reqtries) {
2311: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2312: }
2313: }
2314: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2315: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2316: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2317: }
2318: }
1.475 raeburn 2319: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2320: }
2321: }
2322: }
2323: } elsif ($target eq 'edit') {
2324: $result.=&Apache::edit::tag_start($target,$token);
2325: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2326: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2327: ' '.
2328: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2329: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2330: } elsif ($target eq 'modified') {
2331: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2332: $safeeval,'id','display');
1.159 albertel 2333: if ($constructtag) {
1.225 albertel 2334: #limiting ids to only letters numbers, and space
1.224 www 2335: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2336: $result = &Apache::edit::rebuild_tag($token);
2337: }
2338: }
2339: return $result;
1.11 albertel 2340: }
2341:
2342: sub end_part {
1.159 albertel 2343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2344: &Apache::lonxml::debug("in end_part $target ");
2345: my $status=$Apache::inputtags::status['-1'];
2346: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2347: my $in_order_show=&ordered_show_check();
1.321 albertel 2348: my $result;
2349: if (!$Apache::lonxml::metamode) {
2350: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2351: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2352: }
1.312 albertel 2353: if ($target eq 'grade') {
1.249 albertel 2354: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2355: !$hidden && $in_order_show) {
1.311 foxr 2356: $result.=&Apache::inputtags::grade;
1.249 albertel 2357: } else {
2358: # move any submission data to .hidden
2359: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2360: }
1.283 albertel 2361: } elsif (($target eq 'web' || $target eq 'tex') &&
2362: !$hidden && $in_order_show) {
1.159 albertel 2363: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2364: $target);
1.490 raeburn 2365: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2366: ($env{'form.grade_imsexport'})) {
1.212 albertel 2367: $gradestatus='';
2368: }
1.311 foxr 2369: $result.=$gradestatus;
1.265 sakharuk 2370: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2371: } elsif ($target eq 'edit') {
1.311 foxr 2372: $result.=&Apache::edit::end_table();
1.322 albertel 2373: } elsif ($target eq 'modified') {
2374: $result .= $token->[2];
1.159 albertel 2375: }
2376: pop @Apache::inputtags::status;
2377: $Apache::inputtags::part='';
1.295 albertel 2378: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2379: return $result;
1.11 albertel 2380: }
1.1 albertel 2381:
1.25 albertel 2382: sub start_preduedate {
1.326 albertel 2383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2384: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2385: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2386: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2387: if (!$Apache::lonhomework::scantronmode &&
2388: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2389: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2390: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2391: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2392: }
1.24 albertel 2393: }
1.159 albertel 2394: return '';
1.24 albertel 2395: }
2396:
1.25 albertel 2397: sub end_preduedate {
1.159 albertel 2398: return '';
1.24 albertel 2399: }
2400:
1.369 foxr 2401: # In all the modes where <postanswerdate> text is
2402: # displayable, all we do is eat up the text between the start/stop
2403: # tags if the conditions are not right to display it.
1.25 albertel 2404: sub start_postanswerdate {
1.326 albertel 2405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2406: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2407: &Apache::lonnet::allowed('pav',
2408: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2409: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2410: $target eq 'tex' ) {
1.300 albertel 2411: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2412: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2413: (($target eq 'tex') && !$pav)) {
1.326 albertel 2414: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2415: }
2416: }
2417: return '';
1.24 albertel 2418: }
2419:
1.25 albertel 2420: sub end_postanswerdate {
1.159 albertel 2421: return '';
1.24 albertel 2422: }
2423:
1.25 albertel 2424: sub start_notsolved {
1.326 albertel 2425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2427: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2428: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2429: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2430: if ($gradestatus =~ /^correct/ &&
2431: &Apache::response::show_answer()) {
1.159 albertel 2432: &Apache::lonxml::debug("skipping");
1.326 albertel 2433: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2434: }
1.24 albertel 2435: }
1.159 albertel 2436: return '';
1.24 albertel 2437: }
2438:
1.25 albertel 2439: sub end_notsolved {
1.159 albertel 2440: return '';
1.24 albertel 2441: }
2442:
2443: sub start_solved {
1.326 albertel 2444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2445: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2446: $target eq 'tex') {
2447: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2448: if ($gradestatus !~ /^correct/ ||
2449: !&Apache::response::show_answer()) {
1.326 albertel 2450: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2451: }
1.24 albertel 2452: }
1.159 albertel 2453: return '';
1.24 albertel 2454: }
2455:
2456: sub end_solved {
1.248 albertel 2457: return '';
2458: }
2459:
2460: sub start_problemtype {
1.326 albertel 2461: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2462: my $result;
1.339 albertel 2463: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2464: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2465: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2466: if (!defined($mode)) { $mode='show'; }
2467: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2468: my $found=0;
2469: foreach my $type (split(',',$for)) {
2470: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2471: }
2472: if ($mode eq 'show' && !$found) {
1.326 albertel 2473: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2474: }
2475: if ($mode eq 'hide' && $found) {
1.326 albertel 2476: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2477: }
2478: } elsif ($target eq 'edit') {
2479: $result .=&Apache::edit::tag_start($target,$token);
2480: $result.=&Apache::edit::select_arg('Mode:','mode',
2481: [['show','Show'],
2482: ['hide','Hide']]
2483: ,$token);
2484: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2485: [ ['exam','Exam/Quiz Problem'],
2486: ['survey','Survey'],
1.465 raeburn 2487: ['surveycred','Survey (with credit)'],
2488: ['anonsurvey','Anonymous Survey'],
2489: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2490: ['problem','Homework Problem'],
1.479 raeburn 2491: ['practice','Practice Problem'],
2492: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2493: ,$token);
2494: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2495: } elsif ($target eq 'modified') {
2496: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2497: $safeeval,'mode','for');
2498: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2499: }
2500: return $result;
2501: }
2502:
2503: sub end_problemtype {
1.159 albertel 2504: return '';
1.24 albertel 2505: }
1.34 albertel 2506:
2507: sub start_startouttext {
1.159 albertel 2508: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2509: my @result=(''.'');
2510: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2511:
2512: my $nesting =
2513: &Apache::lonxml::set_state('outtext',
2514: &Apache::lonxml::get_state('outtext')+1);
2515: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2516: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2517: }
1.159 albertel 2518: return (@result);
1.34 albertel 2519: }
1.159 albertel 2520:
1.34 albertel 2521: sub end_startouttext {
1.326 albertel 2522: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2523: my $result='';
2524: my $text='';
2525: if ($target eq 'edit') {
1.424 foxr 2526: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2527: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2528: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2529: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2530: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2531: .'</span></td>'
2532: .'<td align="left"><span id="math_'.$areaid.'" />'
2533: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2534: .'<span></td>'
2535: .'<td>'
2536: .&Apache::edit::insertlist($target,$token)
2537: .'</td>'
2538: .'<td align="right" valign="top">' .
2539: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2540: &Apache::edit::end_row().
1.362 albertel 2541: &Apache::edit::start_spanning_row()."\n".
1.255 www 2542: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2543: }
2544: if ($target eq 'modified') {
1.219 albertel 2545: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2546: }
2547: if ($target eq 'tex') {
2548: $result .= '\noindent ';
2549: }
2550: return $result;
1.34 albertel 2551: }
1.159 albertel 2552:
1.34 albertel 2553: sub start_endouttext {
1.159 albertel 2554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2555: my $result='';
2556: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2557: if ($target eq "modified") {
2558: $result='<endouttext />'.
1.377 albertel 2559: &Apache::edit::handle_insertafter('startouttext');
2560: }
1.404 albertel 2561:
2562: my $nesting =
2563: &Apache::lonxml::set_state('outtext',
2564: &Apache::lonxml::get_state('outtext')-1);
2565: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2566: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2567: &Apache::lonxml::set_state('outtext', 0);
2568: }
1.159 albertel 2569: return $result;
1.34 albertel 2570: }
1.159 albertel 2571:
1.34 albertel 2572: sub end_endouttext {
1.159 albertel 2573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2574: my @result=('','');
2575: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2576: return (@result);
1.34 albertel 2577: }
1.159 albertel 2578:
1.45 albertel 2579: sub delete_startouttext {
1.326 albertel 2580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2581: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2582: my $text=$$parser['-1']->get_text("/endouttext");
2583: my $ntoken=$$parser['-1']->get_token();
2584: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2585: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2586: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2587: # they did the last time round
2588: &Apache::lonxml::increasedepth($ntoken);
2589: &Apache::lonxml::decreasedepth($ntoken);
2590: return 1;
1.193 www 2591: }
2592:
2593: sub start_simpleeditbutton {
2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2595: my $result='';
1.284 albertel 2596: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2597: ($target eq 'web') &&
1.330 albertel 2598: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2599: my $url=$env{'request.noversionuri'};
1.193 www 2600: $url=~s/\?.*$//;
1.367 albertel 2601: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2602: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2603: # $result='<p class="LC_warning">'
2604: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2605: # .&Apache::loncommon::help_open_topic('Caching')
2606: # .'</p>';
1.486 www 2607: $result.=&Apache::loncommon::head_subbox(
2608: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2609: .&Apache::lonhtmlcommon::add_item_funclist(
2610: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2611: .&mt('Edit').'</a>')
1.486 www 2612: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2613:
1.193 www 2614: }
2615: return $result;
2616: }
2617:
2618: sub end_simpleeditbutton {
2619: return '';
1.45 albertel 2620: }
1.34 albertel 2621:
1.428 raeburn 2622: sub practice_problem_header {
2623: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2624: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2625: '</span>';
2626: }
2627:
1.479 raeburn 2628: sub randomizetry_problem_header {
2629: my ($problemstatus,$reqtries) = @_;
2630: my ($header,$text);
2631: if ($reqtries > 1) {
2632: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2633: if (($problemstatus eq 'no') ||
2634: ($problemstatus eq 'no_feedback_ever')) {
2635: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2636: } else {
2637: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2638: }
2639: } else {
2640: $header = &mt('New Problem Variation Each Try');
2641: if (($problemstatus eq 'no') ||
2642: ($problemstatus eq 'no_feedback_ever')) {
2643: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2644:
2645: } else {
2646: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2647: }
2648: }
2649: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2650: '<span class="LC_info">'.$text.'</span><hr />';
2651: }
2652:
2653: sub randomizetry_part_header {
2654: my ($problemstatus,$reqtries,$num) = @_;
2655: my ($header,$text);
2656: if ($reqtries eq 'none') {
2657: $header = &mt('No Question Variation');
2658: $text = &mt('For this question there will no new variation after a try.');
2659: } elsif ($reqtries > 1) {
2660: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2661: if (($problemstatus eq 'no') ||
2662: ($problemstatus eq 'no_feedback_ever')) {
2663: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2664: } else {
2665: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2666: }
2667: } else {
2668: $header = &mt('New Question Variation For Each Try');
2669: if (($problemstatus eq 'no') ||
2670: ($problemstatus eq 'no_feedback_ever')) {
2671: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2672: } else {
2673: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2674: }
2675: }
2676: my $output;
2677: if ($num > 1) {
2678: $output .= '<hr />';
2679: }
2680: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2681: '<span class="LC_info">'.$text.'</span><br /><br />';
2682: return $output;
2683: }
2684:
1.1 albertel 2685: 1;
2686: __END__
1.435 jms 2687:
2688: =pod
2689:
2690: =back
2691:
2692: =cut
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