Annotation of loncom/homework/structuretags.pm, revision 1.497.2.5
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.497.2.5! foxr 4: # $Id: structuretags.pm,v 1.497.2.4 2011/12/14 11:56:08 foxr Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.469 www 69: &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 70: }
71:
1.497.2.4 foxr 72:
73: #---------------------------------------------------------------------------------
74: #
75: # This section of code deals with hyphenation management.
76: # We must do three things:
77: # - keep track fo the desired languages to alter the header.
78: # - provide hyphenation selection as needed by each language that appears in the
79: # text.
80: # - Provide the header text needed to make available the desired hyphenations.
81: #
82: #
83:
84: # Hash whose keys are the languages encountered in the document/resource.
85: #
86:
87: my %languages_required;
88: ##
89: # Given a language selection as input returns a chunk of LaTeX that
90: # selects the required hyphenator.
91: #
92: # @param language - the language being selected.
93: # @return string
94: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
95: #
96: sub select_hyphenation {
97: my $language = shift;
98:
1.497.2.5! foxr 99: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
1.497.2.4 foxr 100:
101: # If there is no latex language there's not much we can do:
102:
103: if ($language) {
104: &require_language($language);
1.497.2.5! foxr 105: my $babel_hyphenation = "\\selectlanguage{$language}";
1.497.2.4 foxr 106:
107: return $babel_hyphenation;
108: } else {
109: return '';
110: }
111: }
112: ##
113: # Clears the set of languages required by the document being rendered.
114: #
115: sub clear_required_languages {
116: %languages_required = ();
117: }
118: ##
119: # Allows an external client of this module to register a need for a language:
120: #
121: # @param LaTeX language required:
122: #
123: sub require_language {
124: my $language = shift;
125: $languages_required{$language} = 1;
126: }
127:
128: ##
129: # Provides the header for babel that indicates the languages
130: # the document requires.
131: # @return string
132: # @retval \usepackage[lang1,lang2...]{babel}
133: # @retval '' if there are no languages_required.
134: sub languages_header {
135: my $header ='';
1.497.2.5! foxr 136: my @languages = (keys(%languages_required));
1.497.2.4 foxr 137:
138: # Only generate the header if there are languages:
139:
140: if (scalar @languages) {
141: my $language_list = join(',', (@languages));
142: $header = '\usepackage['.$language_list."]{babel}\n";
143: }
144: return $header;
145: }
146:
147: #----------------------------------------------------------------------------------
148:
1.10 albertel 149: sub start_web {
1.326 albertel 150: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 151: if ($target ne 'edit' && $target ne 'modified') {
152: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
153: if ($target eq 'web' || $target eq 'webgrade') {
154: return $bodytext;
155: }
156: } elsif ($target eq "edit" ) {
157: my $bodytext =
158: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
159: my $result = &Apache::edit::tag_start($target,$token);
160: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
161: return $result;
162: } elsif ( $target eq "modified" ) {
163: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 164: }
165: return '';
1.10 albertel 166: }
167:
168: sub end_web {
1.44 ng 169: return '';
1.10 albertel 170: }
171:
172: sub start_tex {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 174: my $result='';
1.383 albertel 175: if ($target ne 'edit' && $target ne 'modified') {
176: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
177: if ($target eq 'tex') {
1.434 foxr 178:
179: # If inside a table, occurrences of \\ must be removed;
180: # else the table blows up.
181:
182: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
183: $bodytext =~ s/\\\\//g;
184: }
1.432 foxr 185: return $bodytext.'{}';
1.383 albertel 186: }
187: } elsif ($target eq "edit" ) {
188: my $bodytext =
189: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
190: my $result = &Apache::edit::tag_start($target,$token);
191: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
192: return $result;
193: } elsif ( $target eq "modified" ) {
194: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 195: }
1.198 sakharuk 196: return $result;;
1.10 albertel 197: }
198:
199: sub end_tex {
1.44 ng 200: return '';
1.9 albertel 201: }
202:
1.400 albertel 203: sub homework_js {
204: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 205: &setmode_javascript().
1.400 albertel 206: <<'JS';
207: <script type="text/javascript">
1.483 raeburn 208: // <![CDATA[
1.494 raeburn 209: function setSubmittedPart (part,prefix) {
210: if (typeof(prefix) == 'undefined') {
211: this.document.lonhomework.submitted.value="part_"+part;
212: } else {
213: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
214: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
215: this.document.lonhomework.elements[i].value="part_"+part;
216: }
217: }
218: }
1.400 albertel 219: }
220:
221: function image_response_click (which, e) {
222: init_geometry();
223: if (!e) { e = window.event; } //IE
224: var input_element = document.lonhomework.elements[which];
1.401 albertel 225: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 226: var token = token_element.value;
1.401 albertel 227: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 228: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
229: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
230: var click = x+':'+y;
231: input_element.value = click;
1.485 raeburn 232: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 233: }
1.483 raeburn 234: // ]]>
1.400 albertel 235: </script>
236: JS
237: }
238:
1.416 raeburn 239: sub setmode_javascript {
240: return <<"ENDSCRIPT";
241: <script type="text/javascript">
1.485 raeburn 242: // <![CDATA[
1.416 raeburn 243: function setmode(form,probmode) {
244: form.problemmode.value = probmode;
245: form.submit();
246: }
1.485 raeburn 247: // ]]>
1.416 raeburn 248: </script>
249: ENDSCRIPT
250: }
251:
1.48 albertel 252: sub page_start {
1.345 albertel 253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
254: $extra_head)=@_;
1.159 albertel 255: my %found;
1.207 albertel 256: foreach my $taginside (@$tagstack) {
1.159 albertel 257: foreach my $taglookedfor ('html','body','form') {
258: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
259: }
260: }
261:
1.343 albertel 262: if ($target eq 'tex') {
263: return
264: &Apache::londefdef::start_html($target,$token,$tagstack,
265: $parstack,$parser,$safeeval);
266: }
267:
1.474 raeburn 268: $extra_head .= &homework_js().
269: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
270: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
271: my %textarea_args = (
272: dragmath => 'math',
273: );
274: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 275: }
1.478 raeburn 276: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 277: my $needs_upload;
1.495 raeburn 278: my ($symb)= &Apache::lonnet::whichuser();
279: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 280: if ($is_task) {
1.495 raeburn 281: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 282: } else {
283: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 284: unless ($env{'request.state'} eq 'construct') {
285: my $navmap = Apache::lonnavmaps::navmap->new();
286: if (ref($navmap)) {
287: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 288: my $is_page;
289: if (ref($mapres)) {
290: $is_page = $mapres->is_page();
291: }
292: unless ($is_page) {
1.495 raeburn 293: $needs_upload = 1;
294: }
295: }
296: }
1.493 raeburn 297: } else {
298: unless ($env{'request.state'} eq 'construct') {
299: my $navmap = Apache::lonnavmaps::navmap->new();
300: if (ref($navmap)) {
1.495 raeburn 301: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 302: my $is_page;
303: if (ref($mapres)) {
304: $is_page = $mapres->is_page();
305: }
306: unless ($is_page) {
1.495 raeburn 307: my $res = $navmap->getBySymb($symb);
308: if (ref($res)) {
309: my $partlist = $res->parts();
310: if (ref($partlist) eq 'ARRAY') {
311: foreach my $part (@{$partlist}) {
312: my @types = $res->responseType($part);
313: my @ids = $res->responseIds($part);
314: for (my $i=0; $i < scalar(@ids); $i++) {
315: if ($types[$i] eq 'essay') {
316: my $partid = $part.'_'.$ids[$i];
317: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
318: $needs_upload = 1;
319: last;
320: }
1.493 raeburn 321: }
322: }
323: }
1.495 raeburn 324: }
325: }
1.493 raeburn 326: }
327: }
328: }
329: }
1.495 raeburn 330: if ($needs_upload) {
331: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
332: }
1.478 raeburn 333: }
1.425 raeburn 334:
1.344 albertel 335: my %body_args;
336: if (defined($found{'html'})) {
337: $body_args{'skip_phases'}{'head'}=1;
338: } else {
1.343 albertel 339:
1.345 albertel 340: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 341:
1.379 albertel 342: $extra_head .= &Apache::londefdef::generate_css_links();
343:
1.384 albertel 344: if ($env{'request.state'} eq 'construct') {
1.343 albertel 345: $extra_head.=&Apache::edit::js_change_detection().
346: "<script type=\"text/javascript\">\n".
347: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
348: &Apache::loncommon::browser_and_searcher_javascript().
349: "\n</script>\n";
350: }
1.159 albertel 351: }
1.343 albertel 352:
1.446 bisitz 353: my $pageheader = '';
1.344 albertel 354: if (defined($found{'body'})) {
355: $body_args{'skip_phases'}{'body'}=1;
356: } elsif (!defined($found{'body'})
357: && $env{'request.state'} eq 'construct') {
1.343 albertel 358: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 359: # Breadcrumbs for Construction Space
360: &Apache::lonhtmlcommon::clear_breadcrumbs();
361: &Apache::lonhtmlcommon::add_breadcrumb({
362: 'text' => 'Construction Space',
1.497 raeburn 363: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 364: });
1.460 droeschl 365: # breadcrumbs (and tools) will be created
366: # in start_page->bodytag->innerregister
367:
1.450 bisitz 368: # FIXME Where are we?
369: # &Apache::lonhtmlcommon::add_breadcrumb({
370: # 'text' => 'Problem Editing', # 'Problem Testing'
371: # 'href' => '',
372: # });
1.460 droeschl 373: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 374: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 375: }
1.272 albertel 376: } elsif (!defined($found{'body'})) {
1.343 albertel 377: my %add_entries;
1.159 albertel 378: my $background=&Apache::lonxml::get_param('background',$parstack,
379: $safeeval);
1.343 albertel 380: if ($background ne '' ) {
381: $add_entries{'background'} = $background;
382: }
1.344 albertel 383:
1.290 albertel 384: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
385: $safeeval);
1.446 bisitz 386: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 387:
1.446 bisitz 388: $body_args{'bgcolor'} = $bgcolor;
389: # $body_args{'no_title'} = 1;
390: $body_args{'force_register'} = 1;
391: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 392: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 393: $body_args{'only_body'} = 1;
394: }
1.344 albertel 395: }
1.365 albertel 396: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 397: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
398: \%body_args);
1.446 bisitz 399: $page_start .= $pageheader;
1.462 raeburn 400: if (!defined($found{'body'})
401: && $env{'request.state'} ne 'construct'
402: && ($target eq 'web' || $target eq 'webgrade')) {
403:
404: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
405: if ($symb eq '' && !$publicuser) {
406: $page_start .= '<p class="LC_info">'
407: .&mt('Browsing resource, all submissions are temporary.')
408: .'</p>';
1.457 bisitz 409: }
1.344 albertel 410: }
411:
1.409 albertel 412: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 413: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 414: }
415: my $form_tag_start;
416: if (!defined($found{'form'})) {
1.337 albertel 417: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 418: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 419: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 420: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 421: $form_tag_start.=$uri.'" ';
422: if ($target eq 'edit') {
423: $form_tag_start.=&Apache::edit::form_change_detection();
424: }
1.493 raeburn 425: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
426: my ($path,$multiresp) =
427: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 428: if (($is_task) || ($needs_upload)) {
429: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 430: }
1.368 albertel 431: $form_tag_start.='>'."\n";
1.355 albertel 432:
433: my $symb=&Apache::lonnet::symbread();
434: if ($symb =~ /\S/) {
435: $symb=
436: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
437: $form_tag_start.=
1.368 albertel 438: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 439: }
1.159 albertel 440: }
1.343 albertel 441: return ($page_start,$form_tag_start);
1.105 albertel 442: }
443:
1.141 matthew 444: #use Time::HiRes();
1.105 albertel 445: sub get_resource_name {
1.159 albertel 446: my ($parstack,$safeeval)=@_;
1.388 foxr 447: my $name;
1.204 albertel 448: if (defined($Apache::lonhomework::name)) {
1.388 foxr 449: $name = $Apache::lonhomework::name;
450: } else {
451: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 452: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 453: if ($name eq '') {
454: $name=&Apache::lonnet::EXT('resource.title');
455: if ($name eq 'con_lost') { $name = ''; }
456: }
457: if ($name!~/\S+/) {
458: $name=$env{'request.uri'};
459: $name=~s-.*/([^/]+)$-$1-;
460: }
461: # The name has had html tags escaped:
462:
463: $name=~s/</</gs;
464: $name=~s/>/>/gs;
465:
466: $Apache::lonhomework::name=$name;
1.204 albertel 467: }
1.159 albertel 468: return $name;
1.105 albertel 469: }
470:
471: sub setup_rndseed {
1.479 raeburn 472: my ($safeeval,$target)=@_;
1.367 albertel 473: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 474: my ($questiontype,$set_safespace,$rndseed);
475: if ($target eq 'analyze') {
476: $questiontype = $env{'form.grade_questiontype'};
477: }
478: unless (defined($questiontype)) {
479: $questiontype = $Apache::lonhomework::type;
480: }
1.333 albertel 481: if ($env{'request.state'} eq "construct"
482: || $symb eq ''
483: || $Apache::lonhomework::type eq 'practice'
484: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 485: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 486: ['rndseed']);
1.284 albertel 487: $rndseed=$env{'form.rndseed'};
1.159 albertel 488: if (!$rndseed) {
1.162 albertel 489: $rndseed=$Apache::lonhomework::history{'rndseed'};
490: if (!$rndseed) {
491: $rndseed=time;
492: }
1.284 albertel 493: $env{'form.rndseed'}=$rndseed;
1.162 albertel 494: }
1.479 raeburn 495: if (($env{'request.state'} eq "construct") &&
496: ($Apache::lonhomework::type eq 'randomizetry')) {
497: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
498: if ($tries) {
499: $rndseed += $tries;
500: }
1.480 raeburn 501: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 502: }
1.374 albertel 503: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
504: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 505: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 506: srand(time);
507: $rndseed=int(rand(2100000000));
1.284 albertel 508: $env{'form.rndseed'}=$rndseed;
509: delete($env{'form.resetdata'});
510: delete($env{'form.newrandomization'});
1.159 albertel 511: }
1.488 www 512: $rndseed=~s/\,/\:/g;
513: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 514: if (defined($rndseed)) {
515: my ($c1,$c2)=split(/\:/,$rndseed);
516: unless ($c2) { $c2=0; }
517: unless (($c1==int($c1)) && ($c2==int($c2))) {
518: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
519: }
1.187 albertel 520: }
1.247 albertel 521: if ($Apache::lonhomework::history{'resource.CODE'}) {
522: $rndseed=&Apache::lonnet::rndseed();
523: }
1.479 raeburn 524: $set_safespace = 1;
525: } elsif ($questiontype eq 'randomizetry') {
526: if ($target eq 'analyze') {
527: if (defined($env{'form.grade_rndseed'})) {
528: $rndseed = $env{'form.grade_rndseed'};
529: }
530: }
531: unless (($target eq 'analyze') && (defined($rndseed))) {
532: $rndseed=&Apache::lonnet::rndseed();
533: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
534: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
535: $curr_try ++;
536: }
537: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
538: $rndseed = $1;
539: }
540: if ($curr_try) {
541: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
542: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
543: my $inc = int(($curr_try-1)/$reqtries);
544: $rndseed += $inc;
545: } else {
546: $rndseed += $curr_try;
547: }
548: }
549: }
550: $set_safespace = 1;
551: }
552: if ($set_safespace) {
553: if ($safeeval) {
554: &Apache::lonxml::debug("Setting rndseed to $rndseed");
555: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
556: }
557: }
558: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
559: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 560: }
561: return $rndseed;
1.105 albertel 562: }
563:
1.268 albertel 564: sub remember_problem_state {
565: return '
1.284 albertel 566: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
567: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
568: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 569: }
570:
1.487 www 571: sub problem_edit_action_button {
572: my ($name,$action,$accesskey,$text,$flag)=@_;
573: my $actionscript="setmode(this.form,'$action')";
574: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
575: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
576: }
577:
1.423 www 578: sub problem_edit_buttons {
1.487 www 579: my ($mode)=@_;
580: # Buttons that do not save
581: my $result='<div class="LC_edit_problem_discards">'.
582: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
583: if ($mode eq 'editxml') {
584: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
585: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
586: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
587: } else {
588: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
589: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
590: }
591: $result.="\n</div>";
592: # Buttons that save
593: $result.='<div class="LC_edit_problem_saves">';
594: if ($mode eq 'editxml') {
595: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
596: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
597: } else {
598: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
599: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
600: }
601: $result.="\n</div>\n";
602: return $result;
1.423 www 603: }
604:
605: sub problem_edit_header {
1.487 www 606: return '<input type="hidden" name="submitted" value="edit" />'.
607: &remember_problem_state('edit').'
1.423 www 608: <div class="LC_edit_problem_header">
609: <div class="LC_edit_problem_header_title">
610: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
611: </div>'.
1.487 www 612: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 613: &problem_edit_buttons().'
1.459 bisitz 614: <hr style="clear:both;" />
1.409 albertel 615: '.&Apache::lonxml::message_location().'
1.408 albertel 616: </div>
617: '.
1.458 bisitz 618: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 619: }
620:
621: sub problem_edit_footer {
1.412 albertel 622: return '</td></tr></table><br />
623: <div class="LC_edit_problem_footer">
1.453 bisitz 624: <hr />'.
1.423 www 625: &problem_edit_buttons().'
1.459 bisitz 626: <hr style="clear:both;" />
1.412 albertel 627: </div>
628: '.
1.342 albertel 629: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 630: }
631:
1.235 albertel 632: sub option {
633: my ($value,$name) = @_;
634: my $result ="<option value='".$value."' ";
1.284 albertel 635: if ($env{'form.'.$name} eq $value) {
1.235 albertel 636: $result.=" selected='on' ";
637: }
638: $result.='>';
639: return $result;
640: }
641:
1.105 albertel 642: sub problem_web_to_edit_header {
1.159 albertel 643: my ($rndseed)=@_;
1.406 albertel 644: my $result .= '<div class="LC_edit_problem_header">';
645:
646: if (!$Apache::lonhomework::parsing_a_task) {
647: $result .=
648: '<div class="LC_edit_problem_header_title">'.
649: &mt('Problem Testing').
650: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
651: '</div>';
652: } else {
653: $result .=
654: '<div class="LC_edit_problem_header_title">'.
655: &mt('Task Testing').
656: '</div>';
657: }
658:
1.315 albertel 659: my $show_all_foils_text =
660: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 661: &mt('Show All Instances')
662: : &mt('Show All Foils');
1.315 albertel 663:
1.452 bisitz 664: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
665: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 666: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 667: $show_all.= ' /> '.$show_all_foils_text
668: .'</label></span>';
1.406 albertel 669:
670:
1.384 albertel 671:
1.406 albertel 672: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 673: if (!$Apache::lonhomework::parsing_a_task) {
674: $result.="
1.406 albertel 675: <div class='LC_edit_problem_header_row1'>
676: <span class=\"LC_nobreak\">
1.405 albertel 677: ".&mt("Problem Status:")."
1.235 albertel 678: <select name='problemstate'>
1.270 albertel 679: <option value=''></option>
1.235 albertel 680: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
681: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
682: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
683: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
684: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
685: </select>
1.406 albertel 686: </span>
687: <span class=\"LC_nobreak\">
1.405 albertel 688: ".&mt("Problem Type:")."
1.235 albertel 689: <select name='problemtype'>
1.270 albertel 690: <option value=''></option>
1.242 albertel 691: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 692: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 693: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 694: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
695: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
696: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 697: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 698: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 699: </select>
1.406 albertel 700: </span>
701: $show_all
702: </div>
703: <div class='LC_edit_problem_header_row2'>
704: <span class=\"LC_nobreak\">
1.405 albertel 705: ".&mt("Feedback Mode:")."
1.235 albertel 706: <select name='problemstatus'>
707: <option value=''></option>
1.242 albertel 708: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 709: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
710: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 711: </select>
1.406 albertel 712: </span>
713: ";
714:
1.376 albertel 715: } elsif ($Apache::lonhomework::parsing_a_task) {
716: $result.="
1.406 albertel 717: <div class='LC_edit_problem_header_row1'>
718: <span class=\"LC_nobreak\">
1.405 albertel 719: ".&mt("Problem Status:")."
1.376 albertel 720: <select name='problemstate'>
721: <option value=''></option>
722: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
723: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
724: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
725: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
726: </select>
1.406 albertel 727: </span>
728: $show_all
729: ";
730: }
731: $result.='
732: <span class="LC_nobreak">
733: '.&mt('Apply style file: ').'
734: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
735: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
736: </span>
1.422 www 737: </div>
738: <div class="LC_edit_problem_header_row1">'.
739: &Apache::lonxml::renderingoptions().'
1.406 albertel 740: </div>
741: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
742: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
743: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
744: </div>
1.453 bisitz 745: <hr />
1.406 albertel 746: <div class="LC_edit_problem_header_randomize_row">
747: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
748: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 749: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 750: $rndseed.'"
751: onchange="javascript:document.lonhomework.changerandseed.click()" />';
752:
753: if (!$Apache::lonhomework::parsing_a_task) {
754: my $numtoanalyze=$env{'form.numtoanalyze'};
755: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 756: $result .= '<span class="LC_nobreak">'.
757: &mt('[_1] for [_2] versions.',
1.416 raeburn 758: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 759: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
760: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 761: $numtoanalyze.'" size="5" />').
762: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
763: '</span>';
764:
1.313 albertel 765: }
1.406 albertel 766:
767: $result.='
768: </div>
1.453 bisitz 769: <hr />
1.447 bisitz 770: <div>';
1.416 raeburn 771: $result.='<input type="hidden" name="problemmode" value="view" />';
772: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
773: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
774: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
775: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 776: $result.='
777: </div>
1.453 bisitz 778: <hr />
1.409 albertel 779: '.&Apache::lonxml::message_location().'
1.406 albertel 780: </div>';
1.159 albertel 781: return $result;
1.48 albertel 782: }
783:
1.65 albertel 784: sub initialize_storage {
1.357 albertel 785: my ($given_symb) = @_;
1.353 albertel 786: undef(%Apache::lonhomework::results);
787: undef(%Apache::lonhomework::history);
1.357 albertel 788: my ($symb,$courseid,$domain,$name) =
1.367 albertel 789: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 790:
791: # anonymous users (CODEd exams) have no data
792: if ($name eq 'anonymous'
793: && !defined($domain)) {
794: return;
795: }
796:
1.333 albertel 797: if ($env{'request.state'} eq 'construct'
798: || $symb eq ''
799: || $Apache::lonhomework::type eq 'practice') {
800:
801: my $namespace = $symb || $env{'request.uri'};
802: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 803: ($env{'form.resetdata'} eq &mt('New Problem Variation')
804: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 805: $env{'form.newrandomization'} eq &mt('New Randomization')) {
806: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
807: &Apache::lonxml::debug("Attempt reset");
808: }
1.159 albertel 809: %Apache::lonhomework::history=
1.333 albertel 810: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 811: my ($temp)=keys %Apache::lonhomework::history ;
812: &Apache::lonxml::debug("Return message of $temp");
813: } else {
814: %Apache::lonhomework::history=
815: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
816: }
1.353 albertel 817:
1.159 albertel 818: #ignore error conditions
1.67 albertel 819: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 820: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 821: }
822:
1.435 jms 823: =pod
824:
825: =item finalize_storage()
826:
827: Stores away the result has to a student's environment
828: checks form.grade_ for specific values, other wises stores
829: to the running users environment
830: Will increment totals for attempts, students, and corrects
831: if running user has student role.
832:
833: =cut
834:
835:
1.65 albertel 836: sub finalize_storage {
1.357 albertel 837: my ($given_symb) = @_;
1.159 albertel 838: my $result;
1.289 albertel 839: if (%Apache::lonhomework::results) {
1.323 albertel 840: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
841: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 842: my ($symb,$courseid,$domain,$name) =
1.367 albertel 843: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 844: if ($env{'request.state'} eq 'construct'
845: || $symb eq ''
846: || $Apache::lonhomework::type eq 'practice') {
847: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 848: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 849: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 850: $namespace,'',$domain,$name);
1.159 albertel 851: &Apache::lonxml::debug('Construct Store return message:'.$result);
852: } else {
853: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
854: $symb,$courseid,$domain,$name);
855: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 856: &store_aggregates($symb,$courseid);
1.159 albertel 857: }
1.323 albertel 858: } else {
859: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 860: }
1.159 albertel 861: return $result;
1.65 albertel 862: }
863:
1.435 jms 864: =pod
865:
866: item store_aggregates()
867:
868: Sends hash of values to be incremented in nohist_resourcetracker.db
869: for the course. Increments total number of attempts, unique students
870: and corrects for each part for an instance of a problem, as appropriate.
871:
872: =cut
873:
1.285 raeburn 874: sub store_aggregates {
875: my ($symb,$courseid) = @_;
1.479 raeburn 876: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 877: my @parts;
1.288 albertel 878: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
879: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 880: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 881: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 882: push(@parts, $1);
1.285 raeburn 883: }
884: }
1.286 albertel 885: foreach my $part (@parts) {
1.470 raeburn 886: if ($env{'request.role'} =~/^st/) {
887: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
888: eq 'APPROX_ANS' ||
889: $Apache::lonhomework::results{'resource.'.$part.'.award'}
890: eq 'EXACT_ANS') {
891: $aggregate{$symb."\0".$part."\0correct"} = 1;
892: }
893: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
894: $aggregate{$symb."\0".$part."\0users"} = 1;
895: } else {
896: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
897: if ($last_reset) {
898: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
899: $aggregate{$symb."\0".$part."\0users"} = 1;
900: }
901: }
902: }
903: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 904: }
1.470 raeburn 905: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 906: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
907: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
908: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
909: $randtrycounter{$symb."\0".$part} = 1;
910: } else {
911: $anoncounter{$symb."\0".$part} = 1;
912: }
1.470 raeburn 913: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
914: if ($needsrelease) {
915: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
916: if ($curr_required eq '') {
1.471 raeburn 917: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 918: } else {
919: my ($currmajor,$currminor) = split(/\./,$curr_required);
920: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
921: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 922: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 923: }
1.292 raeburn 924: }
925: }
1.285 raeburn 926: }
927: }
1.292 raeburn 928: if (keys (%aggregate) > 0) {
1.289 albertel 929: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 930: $cdomain,$cname);
931: }
1.472 raeburn 932: if (keys(%anoncounter) > 0) {
1.481 raeburn 933: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
934: $cdomain,$cname);
1.472 raeburn 935: }
1.479 raeburn 936: if (keys(%randtrycounter) > 0) {
1.481 raeburn 937: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
938: $cdomain,$cname);
1.479 raeburn 939: }
1.292 raeburn 940: }
1.289 albertel 941:
1.65 albertel 942: sub checkout_msg {
1.211 albertel 943: my %lt=&Apache::lonlocal::texthash(
944: 'resource'=>'The resource needs to be checked out',
945: '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.',
946: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
947: 'checkout'=>'Check out Exam for Viewing',
948: 'checkout?'=>'Check out Exam?');
1.352 albertel 949: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 950: return (<<ENDCHECKOUT);
1.211 albertel 951: <h2>$lt{'resource'}</h2>
952: <p>$lt{'id_expln'}</p>
1.449 bisitz 953: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 954: <form name="checkout" method="post" action="$uri">
1.91 albertel 955: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 956: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 957: </form>
958: ENDCHECKOUT
959: }
960:
1.252 albertel 961: sub firstaccess_msg {
1.253 albertel 962: my ($time,$symb)=@_;
1.414 albertel 963: my $result;
964: my @interval=&Apache::lonnet::EXT("resource.0.interval");
965: if ($interval[1] eq 'map') {
966: my ($map)=&Apache::lonnet::decode_symb($symb);
967: my $foldertitle=&Apache::lonnet::gettitle($map);
968:
969: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 970: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
971: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
972: ,$foldertitle,$time)."</h2>";
1.414 albertel 973: } elsif ($interval[1] eq 'course') {
974: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 975: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
976: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
977: ,$course,$time)."</h2>";
1.414 albertel 978: } else {
979: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 980: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
981: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
982: ,$title,$time)."</h2>";
1.414 albertel 983: }
1.352 albertel 984: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 985: my $buttontext = &mt('Show Resource');
986: my $timertext = &mt('Start Timer?');
1.414 albertel 987: $result .= (<<ENDCHECKOUT);
1.444 bisitz 988: <form name="markaccess" method="post" action="$uri">
1.252 albertel 989: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 990: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 991: </form>
992: ENDCHECKOUT
1.414 albertel 993: return $result;
1.252 albertel 994: }
995:
1.204 albertel 996: sub init_problem_globals {
997: my ($type)=@_;
998: #initialize globals
1.308 foxr 999: # For problems, we start out in part 0 (outside a <part> tag).
1000: # and part 0 is used to describe the main body of the <problem>
1001: #
1.204 albertel 1002: if ($type eq 'problem') {
1003: $Apache::inputtags::part='0';
1004: @Apache::inputtags::partlist=('0');
1.405 albertel 1005: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1006: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1007:
1.266 albertel 1008: } elsif ($type eq 'library') {
1.204 albertel 1009: $Apache::inputtags::part='';
1010: @Apache::inputtags::partlist=();
1.405 albertel 1011: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1012: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1013:
1.304 albertel 1014: } elsif ($type eq 'Task') {
1015: $Apache::inputtags::part='0';
1016: @Apache::inputtags::partlist=('0');
1.405 albertel 1017: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1018: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1019: }
1.477 www 1020: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1021: @Apache::inputtags::responselist = ();
1022: @Apache::inputtags::importlist = ();
1023: @Apache::inputtags::previous=();
1024: @Apache::inputtags::previous_version=();
1025: $Apache::structuretags::printanswer='No';
1026: @Apache::structuretags::whileconds=();
1027: @Apache::structuretags::whilebody=();
1028: @Apache::structuretags::whileline=();
1029: $Apache::lonhomework::scantronmode=0;
1030: undef($Apache::lonhomework::name);
1.358 albertel 1031: undef($Apache::lonhomework::default_type);
1032: undef($Apache::lonhomework::type);
1.204 albertel 1033: }
1034:
1035: sub reset_problem_globals {
1036: my ($type)=@_;
1037: undef(%Apache::lonhomework::history);
1038: undef(%Apache::lonhomework::results);
1039: undef($Apache::inputtags::part);
1.208 albertel 1040: #don't undef this, lonhomework.pm takes care of this, we use this to
1041: #detect if we try to do 2 problems in one file
1042: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1043: undef($Apache::lonhomework::name);
1.358 albertel 1044: undef($Apache::lonhomework::default_type);
1045: undef($Apache::lonhomework::type);
1046: undef($Apache::lonhomework::scantronmode);
1047: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1048: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1049: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1050: }
1051:
1.241 albertel 1052: sub set_problem_state {
1.240 albertel 1053: my ($part)=@_;
1.284 albertel 1054: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1055: $Apache::lonhomework::history{"resource.$part.solved"}=
1056: 'correct_by_student';
1057: }
1058: }
1059:
1.241 albertel 1060: sub get_problem_status {
1061: my ($part)=@_;
1.267 albertel 1062: my $problem_status;
1.284 albertel 1063: if ($env{'request.state'} eq 'construct' &&
1064: defined($env{'form.problemstatus'})) {
1065: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1066: } else {
1067: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1068: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1069: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1070: }
1071: return $problem_status;
1072: }
1073:
1.9 albertel 1074: sub start_problem {
1.326 albertel 1075: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1076:
1.311 foxr 1077: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1078: if (!$Apache::lonxml::metamode) {
1079: &Apache::lonxml::startredirection();
1080: }
1.311 foxr 1081:
1.308 foxr 1082: # Problems don't nest and we don't allow more than one <problem> in
1083: # a .problem file.
1084: #
1.184 albertel 1085: if ( $Apache::inputtags::part ne '' ||
1086: $Apache::lonhomework::parsing_a_problem) {
1087: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1088: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1089: return '';
1090: }
1.184 albertel 1091:
1092: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1093: &init_problem_globals('problem');
1.166 albertel 1094:
1.284 albertel 1095: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1096: $Apache::lonhomework::scantronmode=1;
1097: }
1.161 albertel 1098:
1.159 albertel 1099: if ($target ne 'analyze') {
1.415 raeburn 1100: my $type = &Apache::lonnet::EXT('resource.0.type');
1101: $Apache::lonhomework::type=$type;
1.284 albertel 1102: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1103: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1104: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1105: }
1.332 albertel 1106: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1107: }
1.164 albertel 1108: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1109: my $uri=$env{'request.uri'};
1.159 albertel 1110: if ($uri=~/\.(\w+)$/) {
1111: $Apache::lonhomework::type=$1;
1112: &Apache::lonxml::debug("Using type of $1");
1113: } else {
1114: $Apache::lonhomework::type='problem';
1115: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1116: }
1.87 albertel 1117: }
1.301 albertel 1118: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1119:
1.363 albertel 1120: &initialize_storage();
1.389 albertel 1121: if ($target ne 'analyze'
1122: && $env{'request.state'} eq 'construct') {
1123: &set_problem_state('0');
1124: }
1125:
1.366 albertel 1126: if ($target eq 'web') {
1127: &Apache::lonxml::debug(" grading history ");
1128: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1129: }
1.363 albertel 1130:
1.159 albertel 1131: #added vars to the scripting enviroment
1.213 albertel 1132: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1133: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1134: &Apache::run::run($expression,$safeeval);
1.159 albertel 1135: my $status;
1136: my $accessmsg;
1137:
1.343 albertel 1138: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1139: my ($result,$form_tag_start);
1.354 albertel 1140: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1141: || $target eq 'edit') {
1.350 albertel 1142: ($result,$form_tag_start) =
1143: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1144: $name);
1145: }
1146:
1.284 albertel 1147: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1148:
1.479 raeburn 1149: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1150: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1151: $target eq 'tex') {
1.284 albertel 1152: if ($env{'form.markaccess'}) {
1.414 albertel 1153: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1154: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1155: }
1.479 raeburn 1156:
1157: ($status,$accessmsg,my $slot_name,my $slot) =
1158: &Apache::lonhomework::check_slot_access('0','problem');
1159: push (@Apache::inputtags::status,$status);
1160:
1.159 albertel 1161: #handle rand seed in construction space
1.479 raeburn 1162: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1163: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1164:
1.333 albertel 1165: if ($env{'request.state'} ne "construct" &&
1166: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1167: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1168: $rndseed.'" />'.
1169: '<input type="submit" name="resetdata"
1170: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1171: if (exists($env{'form.username'})) {
1172: $form_tag_start.=
1.164 albertel 1173: '<input type="hidden" name="username"
1.284 albertel 1174: value="'.$env{'form.username'}.'" />';
1.334 albertel 1175: }
1.462 raeburn 1176: if ($env{'request.role.adv'}) {
1177: $form_tag_start.= ' <label class="LC_nobreak">'
1178: .'<input type="checkbox" name="showallfoils"';
1179: if (defined($env{'form.showallfoils'})) {
1180: $form_tag_start.=' checked="checked"';
1181: }
1182: $form_tag_start.= ' /> '
1183: .&mt('Show All Foils')
1184: .'</label>';
1185: }
1.417 www 1186: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1187: $form_tag_start.=&practice_problem_header();
1.417 www 1188: }
1.462 raeburn 1189: $form_tag_start.='<hr />';
1.479 raeburn 1190: } elsif (($env{'request.state'} ne "construct") &&
1191: ($Apache::lonhomework::type eq 'randomizetry') &&
1192: ($status eq 'CAN_ANSWER')) {
1193: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1194: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1195: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1196: }
1.324 albertel 1197:
1.159 albertel 1198: my $expression='$external::datestatus="'.$status.'";';
1199: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1200: &Apache::run::run($expression,$safeeval);
1201: &Apache::lonxml::debug("Got $status");
1.324 albertel 1202:
1.159 albertel 1203: if (( $status eq 'CLOSED' ) ||
1204: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1205: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1206: ( $status eq 'BANNED') ||
1.216 albertel 1207: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1208: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1209: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1210: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1211: $style);
1.159 albertel 1212: if ( $target eq "web" ) {
1.343 albertel 1213: my $msg;
1.159 albertel 1214: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1215: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1216: } elsif ($status eq 'NOT_IN_A_SLOT') {
1217: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1218: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1219: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1220: }
1.216 albertel 1221: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1222: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1223: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1224: $msg.=&checkout_msg();
1.252 albertel 1225: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1226: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1227: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1228: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1229: }
1230: $result.=$msg.'<br />';
1231: } elsif ($target eq 'tex') {
1.332 albertel 1232: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1233: : '\begin{minipage}{\textwidth}';
1.443 foxr 1234: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1235: $startminipage.'\vskip 0 mm';
1.159 albertel 1236: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1237: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1238: } else {
1.211 albertel 1239: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1240: }
1241: }
1.324 albertel 1242: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1243: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1244: $style);
1.324 albertel 1245: if ($target eq 'web') {
1.375 albertel 1246: $result .=
1247: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1248: } elsif ($target eq 'grade') {
1249: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1250: 'problem');
1251: }
1.159 albertel 1252: } elsif ($target eq 'web') {
1.360 albertel 1253: if ($status eq 'CAN_ANSWER'
1254: && $slot_name ne ''
1255: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1256: # unproctored slot access, self checkin
1257: &Apache::bridgetask::check_in('problem',undef,undef,
1258: $slot_name);
1259: }
1.368 albertel 1260: $result.="\n $form_tag_start \t".
1.227 albertel 1261: '<input type="hidden" name="submitted" value="yes" />';
1262: # create a page header and exit
1.284 albertel 1263: if ($env{'request.state'} eq "construct") {
1264: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1265: if ($Apache::lonhomework::type eq 'practice') {
1266: $result.= '<input type="submit" name="resetdata" '.
1267: 'value="'.&mt('New Problem Variation').'" />'.
1268: &practice_problem_header().'<hr />';
1269: }
1.227 albertel 1270: }
1271: # if we are viewing someone else preserve that info
1.284 albertel 1272: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1273: foreach my $field ('symb','courseid','domain','username') {
1274: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1275: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1276: }
1.479 raeburn 1277: foreach my $field ('trial','questiontype') {
1278: if ($env{"form.grade_$field"} ne '') {
1279: $result .= '<input type="hidden" name="grade_'.$field.
1280: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1281: }
1282: }
1.159 albertel 1283: }
1.490 raeburn 1284: if ($env{'form.grade_imsexport'}) {
1285: $result = '';
1286: }
1.159 albertel 1287: } elsif ($target eq 'tex') {
1.319 foxr 1288: $result .= 'INSERTTEXFRONTMATTERHERE';
1289:
1.99 sakharuk 1290: }
1.159 albertel 1291: } elsif ($target eq 'edit') {
1.343 albertel 1292: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1293: $Apache::lonxml::warnings_error_header=
1294: &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 1295: my $temp=&Apache::edit::insertlist($target,$token);
1296: $result.=$temp;
1297: } elsif ($target eq 'modified') {
1298: $result=$token->[4];
1299: } else {
1300: # page_start returned a starting result, delete it if we don't need it
1301: $result = '';
1.99 sakharuk 1302: }
1.159 albertel 1303: return $result;
1.9 albertel 1304: }
1305:
1306: sub end_problem {
1.159 albertel 1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1308: my $result;
1.310 foxr 1309:
1.321 albertel 1310: if (!$Apache::lonxml::metamode) {
1311: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1312: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1313: }
1.319 foxr 1314:
1315: if ($target eq 'tex') {
1.321 albertel 1316: # Figure out the front matter and replace the
1317: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1318: # this in end_problem because whether or not we display due
1319: # dates depends on whether due dates have already been
1320: # displayed in the problem parts.
1321:
1.319 foxr 1322: my $frontmatter = '';
1323: my $startminipage = '';
1324: if (not $env{'form.problem_split'}=~/yes/) {
1325: $startminipage = '\begin{minipage}{\textwidth}';
1326: }
1327: my $id = $Apache::inputtags::part;
1328: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1329: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1330: my @packages = split /,/,$packages;
1331: my $allow_print_points = 0;
1332: foreach my $partial_key (@packages) {
1333: if ($partial_key=~m/^part_0$/) {
1334: $allow_print_points=1;
1335: }
1336: }
1337: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1338: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1339: if (lc($env{'course.'.$env{'request.course.id'}.
1340: '.disableexampointprint'}) eq 'yes') {
1341: $allow_print_points=0;
1342: }
1343: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1344: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.497.2.5! foxr 1345: &clear_required_languages();
1.319 foxr 1346: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1347: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1348:
1349: # Figure out what the due date is and if we need to print
1350: # it in the problem header. We have been logging the
1351: # last due date written to file.
1352:
1353: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1354: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1355: my $duedate_text = &mt('Due date: [_1]'
1356: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1357: my $temp_file;
1358: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1359:
1360: # Figure out what the last printed due date is or set it
1361: # to the epoch if no duedates have been printed.
1362:
1363: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1364: if (-e $filename) {
1365: $temp_file = Apache::File->new($filename);
1366: my @due_file = <$temp_file>;
1367: $due_file_content = $due_file[$#due_file];
1368: chomp $due_file_content;
1369: }
1370:
1371: # We display the due date iff it is not the same as the last
1372: # duedate in problem header ($due_file_content), and
1373: # none of our parts displayed a duedate.
1374: #
1375: my $parts_with_displayduedate;
1376: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1377: $parts_with_displayduedate =
1378: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1379: } else {
1380: $parts_with_displayduedate = 0;
1381: }
1382: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1383: $temp_file = Apache::File->new('>'.$filename);
1384: print $temp_file "$duetime\n";
1385: if (not $env{'request.symb'} =~ m/\.page_/) {
1386: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1387: $frontmatter .= $begin_doc.
1.448 bisitz 1388: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1389: } else {
1390: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1391: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1392: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1393: }
1.319 foxr 1394: }
1395: } else {
1.448 bisitz 1396: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1397: }
1398: } else {
1399: if (not $env{'request.symb'} =~ m/\.page_/) {
1400: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1401: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1402: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1403: }
1.319 foxr 1404: } else {
1.381 albertel 1405: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1406: }
1407: }
1408: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1409: }
1410:
1.159 albertel 1411: my $status=$Apache::inputtags::status['-1'];
1412: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1413: $target eq 'tex') {
1.249 albertel 1414: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1415: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1416: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1417: &Apache::inputtags::grade;
1.324 albertel 1418: } elsif ($status eq 'NEEDS_CHECKIN') {
1419: # no need to grade, and don't want to hide data
1.249 albertel 1420: } else {
1421: # move any submission data to .hidden
1422: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1423: }
1.159 albertel 1424: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1425: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1426: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1427: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1428: # if part is zero, no <part>s existed, so we need show the current
1429: # grading status
1430: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1431: $result.= $gradestatus;
1432: }
1433: if (
1.284 albertel 1434: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1435: ($target eq 'answer') || ($target eq 'tex')
1436: ) {
1.490 raeburn 1437: if (($target ne 'tex') &&
1438: ($env{'form.answer_output_mode'} ne 'tex') &&
1439: (!$env{'form.grade_imsexport'})) {
1.254 www 1440: $result.="</form>";
1.159 albertel 1441: }
1442: if ($target eq 'web') {
1.346 albertel 1443: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1444: } elsif ($target eq 'tex') {
1.178 sakharuk 1445: my $endminipage = '';
1.284 albertel 1446: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1447: $endminipage = '\end{minipage}';
1448: }
1.284 albertel 1449: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1450: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1451: } else {
1.262 sakharuk 1452: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1453: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1454: $result .= $endminipage.'\end{document} ';
1455: } else {
1.382 albertel 1456: $result .= $endminipage;
1.262 sakharuk 1457: }
1.159 albertel 1458: }
1459: }
1460: }
1.476 www 1461: if ($target eq 'web') {
1462: $result.=&Apache::functionplotresponse::init_script();
1463: }
1.159 albertel 1464: if ($target eq 'grade') {
1465: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1466: &finalize_storage();
1467: }
1.284 albertel 1468: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1469: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1470: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1471: # normally we get it from above, but in CSTR
1.172 albertel 1472: # we always show answer mode too.
1.159 albertel 1473: }
1474: } elsif ($target eq 'meta') {
1475: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1476: @Apache::inputtags::response=();
1.159 albertel 1477: $result=&Apache::response::mandatory_part_meta;
1478: }
1.215 albertel 1479: $result.=&Apache::response::meta_part_order();
1.258 albertel 1480: $result.=&Apache::response::meta_response_order();
1.159 albertel 1481: } elsif ($target eq 'edit') {
1482: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1483: $result .= &problem_edit_footer();
1.320 albertel 1484: } elsif ($target eq 'modified') {
1485: $result .= $token->[2];
1.159 albertel 1486: }
1.155 albertel 1487:
1.284 albertel 1488: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1489: &Apache::inputtags::check_for_duplicate_ids();
1490: }
1.204 albertel 1491:
1492: &reset_problem_globals('problem');
1.159 albertel 1493:
1494: return $result;
1.48 albertel 1495: }
1496:
1.108 albertel 1497:
1.48 albertel 1498: sub start_library {
1.159 albertel 1499: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1500: my ($result,$form_tag_start);
1.371 albertel 1501: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1502: &init_problem_globals('library');
1503: $Apache::lonhomework::type='problem';
1504: }
1.159 albertel 1505: if ($target eq 'edit') {
1.343 albertel 1506: ($result,$form_tag_start)=
1507: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1508: 'Edit');
1509: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1510: my $temp=&Apache::edit::insertlist($target,$token);
1511: $result.=$temp;
1512: } elsif ($target eq 'modified') {
1513: $result=$token->[4];
1.340 albertel 1514: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1515: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1516: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1517: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1518: ($result,$form_tag_start)=
1519: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1520: $name);
1.479 raeburn 1521: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1522: $result.=" \n $form_tag_start".
1.159 albertel 1523: '<input type="hidden" name="submitted" value="yes" />';
1524: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1525: if ($Apache::lonhomework::type eq 'practice') {
1526: $result.= '<input type="submit" name="resetdata" '.
1527: 'value="'.&mt('New Problem Variation').'" />'.
1528: &practice_problem_header().'<hr />';
1529: }
1.159 albertel 1530: }
1531: return $result;
1.48 albertel 1532: }
1533:
1534: sub end_library {
1.159 albertel 1535: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1536: my $result='';
1537: if ($target eq 'edit') {
1538: $result=&problem_edit_footer();
1.371 albertel 1539: } elsif ($target eq 'web'
1540: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1541: && $env{'request.state'} eq "construct") {
1.349 albertel 1542: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1543: }
1.371 albertel 1544: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1545: &reset_problem_globals('library');
1546: }
1.159 albertel 1547: return $result;
1.197 www 1548: }
1549:
1550: sub start_definetag {
1.326 albertel 1551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1552:
1553: my $result;
1554:
1555: my $name = $token->[2]->{'name'};
1.326 albertel 1556: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1557: if ($target eq 'web') {
1558: if ($name=~/^\//) {
1559: $result=
1560: '<br /><table class="LC_sty_end"><tr><th>'.
1561: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1562: } else {
1563: $result=
1564: '<br /><table class="LC_sty_begin"><tr><th>'.
1565: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1566: }
1567: $skip = &HTML::Entities::encode($skip, '<>&"');
1568: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1569: }
1570: return $result;
1571: }
1572:
1573: sub end_definetag {
1574: return '';
1.1 albertel 1575: }
1576:
1577: sub start_block {
1.201 albertel 1578: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1579:
1580: my $result;
1.1 albertel 1581:
1.339 albertel 1582: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1583: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1584: my $code = $token->[2]->{'condition'};
1.385 albertel 1585: if (defined($code) && $code ne '') {
1.137 albertel 1586: if (!$Apache::lonxml::default_homework_loaded) {
1587: &Apache::lonxml::default_homework_load($safeeval);
1588: }
1.131 albertel 1589: $result = &Apache::run::run($code,$safeeval);
1590: &Apache::lonxml::debug("block :$code: returned :$result:");
1591: } else {
1592: $result='1';
1593: }
1594: if ( ! $result ) {
1.201 albertel 1595: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1596: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1597: }
1598: $result='';
1599: } elsif ($target eq 'edit') {
1600: $result .=&Apache::edit::tag_start($target,$token);
1601: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1602: $token,40);
1603: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1604: } elsif ($target eq 'modified') {
1605: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1606: $safeeval,'condition');
1607: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1608: }
1.131 albertel 1609: return $result;
1.1 albertel 1610: }
1611:
1612: sub end_block {
1.167 www 1613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1614: my $result;
1615: if ($target eq "edit") {
1616: $result.= &Apache::edit::tag_end($target,$token,'');
1617: }
1618: return $result;
1619: }
1.497.2.1 foxr 1620: #
1621: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1622: # ...
1623: # </languageblock>
1624: #
1625: # This declares the intent to provide content that can be rendered in the
1626: # set of languages in the include specificatino but not in the exclude
1627: # specification. If a currently preferred language is in the include list
1628: # the content in the <languageblock>...</languageblock> is rendered
1629: # If the currently preferred language is in the exclude list,
1630: # the content in the <languageblock>..></languageblock is not rendered.
1631: #
1632: # Pathalogical case handling:
1633: # - Include specified, without the preferred language but exclude specified
1634: # also without the preferred langauge results in rendering the block.
1635: # - Exclude specified without include and excluden not containing a
1636: # preferred language renders the block.
1637: # - Include and exclude both specifying the preferred language does not
1638: # render the block.
1639: # - If neither include/exclude is specified, the block gets rendered.
1640: #
1641: # This tag has no effect when target is in {edit, modified}
1642: #
1.167 www 1643: sub start_languageblock {
1.201 albertel 1644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1645:
1.497.2.1 foxr 1646: my $result = '';
1.167 www 1647:
1.339 albertel 1648: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1649: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1650: my $include = $token->[2]->{'include'};
1651: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1652: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.497.2.1 foxr 1653:
1654: # This should not even happen, since we should at least have the server language
1655:
1656: if (!$preferred_languages[0]) {
1657: $preferred_languages[0]='en';
1658: }
1659:
1660: # Now loop over all languages in order of preference
1661:
1.497.2.4 foxr 1662: my $render;
1.398 www 1663: foreach my $preferred_language (@preferred_languages) {
1.497.2.1 foxr 1664:
1665: # If neither include/nor exlude is present the block is going
1666: # to get rendered.
1667:
1.399 www 1668: my $found=0;
1.497.2.4 foxr 1669: $render=1;
1670:
1.497.2.1 foxr 1671: # If include is specified, don't render the block
1672: # unless the preferred language is included in the set.
1673:
1.398 www 1674: if ($include) {
1.497.2.1 foxr 1675: $render=0;
1.398 www 1676: foreach my $included_language (split(/\,/,$include)) {
1677: if ($included_language eq $preferred_language) {
1.497.2.1 foxr 1678: $render=1;
1.399 www 1679: $found=1;
1.497.2.1 foxr 1680: last; # Only need to find the first.
1.398 www 1681: }
1682: }
1683: }
1.497.2.1 foxr 1684: # Do we have an exclude argument?
1685: # If so, and one of the languages matches a preferred language
1686: # inhibit rendering the block. Note that in the pathalogical case the
1687: # author has specified a preferred language in both the include and exclude
1688: # attribte exclude is preferred.
1689:
1.398 www 1690: if ($exclude) {
1.497.2.1 foxr 1691: $render=1;
1.398 www 1692: foreach my $excluded_language (split(/\,/,$exclude)) {
1693: if ($excluded_language eq $preferred_language) {
1.497.2.1 foxr 1694: $render=0;
1.399 www 1695: $found=1;
1.497.2.1 foxr 1696: last; # Only need to find the first.
1.398 www 1697: }
1698: }
1699: }
1.497.2.1 foxr 1700: if ($found) {
1701: last; # Done on any match of include or exclude.
1702: }
1.398 www 1703: }
1.497.2.1 foxr 1704: # If $render not true skip the entire block until </languageblock>
1705: #
1706:
1707: if ( ! $render ) {
1.201 albertel 1708: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1709: $style);
1710: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1711: }
1.497.2.1 foxr 1712: # If $render is true, we've not skipped the contents of the <languageglock>
1713: # and the normal loncapa processing flow will render it as a matter of course.
1714:
1.167 www 1715: } elsif ($target eq 'edit') {
1716: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1717: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1718: $token,40);
1.211 albertel 1719: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1720: $token,40);
1721: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1722: } elsif ($target eq 'modified') {
1723: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1724: $safeeval,'include',
1725: 'exclude');
1.167 www 1726: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1727: }
1728: return $result;
1729: }
1730:
1731: sub end_languageblock {
1.170 www 1732: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1733: my $result;
1.201 albertel 1734: if ($target eq "edit") {
1.170 www 1735: $result.= &Apache::edit::tag_end($target,$token,'');
1736: }
1737: return $result;
1738: }
1.497.2.3 foxr 1739: # languagblock specific tags:
1.397 albertel 1740: {
1.497.2.2 foxr 1741: # For chunks of a resource that has translations, this hash contains
1742: # the translations available indexed by language name.
1743: #
1744:
1745: my %available_texts;
1746:
1747: # <translated> starts a block of a resource that has multiple translations.
1748: # See the <lang> tag as well.
1749: # When </translated> is encountered if there is a translation for the
1750: # currently preferred language, that is rendered inthe web/tex/webgrade
1751: # targets. Otherwise, the default text is rendered.
1752: #
1753: # Note that <lang> is only registered for the duration of the
1754: # <translated>...</translated> block
1755: #
1756: # Pathalogical case handling:
1757: # - If there is no <lang> that specifies a 'default' and there is no
1758: # translation that matches a preferred language, nothing is rendered.
1759: # - Nested <translated>...</translated> might be linguistically supported by
1760: # XML due to the stack nature of tag registration(?) however the rendered
1761: # output will be incorrect because there is only one %available_texts
1762: # has and end_translated clears it.
1763: # - Material outside of a <lang>...</lang> block within the
1764: # <translated>...<translated> block won't render either e.g.:
1765: # <translated>
1766: # The following will be in your preferred langauge:
1767: # <lang which='en'>
1768: # This section in english
1769: # </lang>
1770: # <lang which='sgeiso'>
1771: # Hier es ist auf Deutsch.
1772: # </lang>
1773: # <lang which='sfriso'>
1774: # En Francais
1775: # </lang>
1776: # </translated>
1777: #
1778: # The introductory text prior to the first <lang> tag is not rendered.
1779: #
1.397 albertel 1780: sub start_translated {
1781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1782: &Apache::lonxml::register('Apache::structuretags',('lang'));
1783: undef(%available_texts);
1784: }
1785:
1786: sub end_translated {
1787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1788: my $result;
1789: #show the translation on viewable targets
1790: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1791: # or non-viewable targets, if it's embedded in something that
1792: # wants the output
1793: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1794: && &Apache::lonxml::in_redirection() ) ) {
1795: my @possibilities = keys(%available_texts);
1796: my $which =
1797: &Apache::loncommon::languages(\@possibilities) || 'default';
1.497.2.4 foxr 1798: if ($target eq 'tex') {
1799: $result = &select_hyphenation($which);
1800: }
1801: $result .= $available_texts{$which};
1.397 albertel 1802: }
1803: undef(%available_texts);
1804: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1805: return $result;
1806: }
1807:
1.497.2.3 foxr 1808: # <lang [which='language-name'] [other='lang1,lang2...']>
1809: # Specifies that the block contained within it is a translation
1810: # for a specific language specified by the 'which' attribute. The
1811: # 'other' attribute can be used by itself or in conjunction with
1812: # which to specify this tag _may_ be used as a translation for some
1813: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1814: # specifying that the block provides a translation for US (primary)
1815: # Canadian, Australian and UK Englush.
1816: #
1817: # Comment: this seems a bit silly why not just support a list of languages
1818: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1819: #
1820: # Effect:
1821: # The material within the <lang>..</lang> block is stored in the
1822: # specified set of $available_texts hash entries, the appropriate one
1823: # is selected at </translated> time.
1824: #
1825: # Pathalogical case handling:
1826: # If a language occurs multiple times within a <translated> block,
1827: # only the last one is rendered e.g.:
1828: #
1829: # <translated>
1830: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1831: # Red green color blindness is quite common affecting about 7.8% of
1832: # the male population, but onloy about .65% of the female population.
1833: # </lang>
1834: # Red green colour blindness is quite common affecting about 7.8% of
1835: # the male population, but onloy about .65% of the female population.
1836: # <lang which='seniso', other='senisoCA,senisoAU'>
1837: # </translated>
1838: #
1839: # renders the correct spelling of color (colour) for people who have specified
1840: # a preferred language that is one of the British Commonwealth languages
1841: # even though those are also listed as valid selections for the US english
1842: # <lang> block.
1843: #
1.397 albertel 1844: sub start_lang {
1845: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1846: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1847: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1848: &Apache::lonxml::startredirection();
1849: }
1850: return '';
1851: }
1852:
1853: sub end_lang {
1854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1855: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1856: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1857: my $result = &Apache::lonxml::endredirection();
1858: my $which = &Apache::lonxml::get_param('which',$parstack,
1859: $safeeval);
1.431 raeburn 1860: if ($which=~/\w/) {
1861: $available_texts{$which} = $result;
1862: }
1863: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1864: $safeeval);
1865: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1866: if ($language=~/\w/) {
1867: $available_texts{$language} = $result;
1868: }
1.427 bisitz 1869: }
1870:
1.397 albertel 1871: }
1872: return '';
1873: }
1.497.2.3 foxr 1874: } # end langauge block specific tags.
1875:
1.397 albertel 1876:
1.170 www 1877: sub start_instructorcomment {
1.201 albertel 1878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1879:
1880: my $result;
1881:
1.339 albertel 1882: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1883: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1884: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1885: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1886: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1887: $parser,$style);
1.170 www 1888: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1889: }
1890: $result='';
1891: } elsif ($target eq 'edit') {
1892: $result .=&Apache::edit::tag_start($target,$token);
1893: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1894: }
1895: return $result;
1896: }
1897:
1898: sub end_instructorcomment {
1.159 albertel 1899: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1900: my $result;
1901: if ($target eq "edit") {
1902: $result.= &Apache::edit::tag_end($target,$token,'');
1903: }
1904: return $result;
1.4 tsai 1905: }
1906:
1907: sub start_while {
1.326 albertel 1908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1909:
1.160 albertel 1910: my $result;
1.339 albertel 1911: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1912: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1913: my $code = $token->[2]->{'condition'};
1.4 tsai 1914:
1.160 albertel 1915: push( @Apache::structuretags::whileconds, $code);
1916: if (!$Apache::lonxml::default_homework_loaded) {
1917: &Apache::lonxml::default_homework_load($safeeval);
1918: }
1919: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1920: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1921: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1922: push( @Apache::structuretags::whileline, $token->[5]);
1923: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1924: if ( $result ) {
1925: &Apache::lonxml::newparser($parser,\$bodytext);
1926: }
1927: } elsif ($target eq 'edit') {
1928: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1929: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1930: $token,40);
1931: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1932: } elsif ($target eq 'modified') {
1933: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1934: $safeeval,'condition');
1935: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1936: }
1.160 albertel 1937: return $result;
1.4 tsai 1938: }
1939:
1940: sub end_while {
1.159 albertel 1941: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1942: my $result;
1943:
1.339 albertel 1944: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1945: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1946: my $code = pop(@Apache::structuretags::whileconds);
1947: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1948: my $line = pop(@Apache::structuretags::whileline);
1949: my $return = &Apache::run::run($code,$safeeval);
1950: my $starttime=time;
1951: my $error=0;
1952: while ($return) {
1953: if (time-$starttime >
1954: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1955: $return = 0; $error=1; next;
1.161 albertel 1956: }
1957: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1958: if ($target eq 'grade' || $target eq 'answer' ||
1959: $target eq 'analyze') {
1960: # grade/answer/analyze should produce no output but if we
1961: # are redirecting, the redirecter should know what to do
1962: # with the output
1963: if (!$Apache::lonxml::redirection) { undef($result); }
1964: }
1.161 albertel 1965: $return = &Apache::run::run($code,$safeeval);
1966: }
1967: if ($error) {
1.430 bisitz 1968: &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 1969: }
1970: } elsif ($target eq "edit") {
1971: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1972: }
1.160 albertel 1973: return $result;
1.1 albertel 1974: }
1.6 tsai 1975:
1.160 albertel 1976: # <randomlist show="1">
1.6 tsai 1977: # <tag1>..</tag1>
1978: # <tag2>..</tag2>
1979: # <tag3>..</tag3>
1.160 albertel 1980: # ...
1.6 tsai 1981: # </randomlist>
1982: sub start_randomlist {
1.326 albertel 1983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1984: my $result;
1.339 albertel 1985: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1986: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1987: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1988: my $b_parser= HTML::LCParser->new(\$body);
1989: $b_parser->xml_mode(1);
1990: $b_parser->marked_sections(1);
1.159 albertel 1991: my $b_tok;
1992: my @randomlist;
1993: my $list_item;
1994: while($b_tok = $b_parser->get_token() ) {
1995: if($b_tok->[0] eq 'S') { # start tag
1996: # get content of the tag until matching end tag
1997: # get all text upto the matching tag
1998: # and push the content into @randomlist
1999: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2000: $b_parser);
2001: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2002: push(@randomlist,$list_item);
2003: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2004: # $list_item</b>";
2005: }
2006: if($b_tok->[0] eq 'T') { # text
2007: # what to do with text in between tags?
2008: # print "<b>TEXT $b_tok->[1]</b><br />";
2009: }
2010: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2011: # print "<b>END-TAG $b_tok->[1]</b><br />";
2012: # }
2013: }
1.303 albertel 2014: if (@randomlist) {
2015: my @idx_arr = (0 .. $#randomlist);
2016: &Apache::structuretags::shuffle(\@idx_arr);
2017: my $bodytext = '';
2018: my $show=$#randomlist;
2019: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2020: $showarg--;
2021: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2022: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2023: my @currlist;
2024: my $part = $Apache::inputtags::part;
2025: if ($part ne '') {
2026: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2027: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2028: if (!(grep(/^\Q$part\E$/,@currlist))) {
2029: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2030: }
2031: } else {
2032: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2033: }
2034: }
2035: }
1.303 albertel 2036: for(0 .. $show) {
2037: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2038: }
2039: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2040: }
2041: } elsif ($target eq 'edit' ) {
2042: $result .=&Apache::edit::tag_start($target,$token);
2043: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2044: $token,5);
2045: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2046: } elsif ($target eq 'modified' ) {
2047: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2048: $safeeval,'show');
2049: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2050: }
2051: return $result;
1.7 tsai 2052: }
2053:
2054: sub shuffle {
2055: my $a=shift;
2056: my $i;
1.303 albertel 2057: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2058: &Apache::response::pushrandomnumber();
1.159 albertel 2059: for($i=@$a;--$i;) {
2060: my $j=int(&Math::Random::random_uniform() * ($i+1));
2061: next if $i == $j;
2062: @$a[$i,$j] = @$a[$j,$i];
2063: }
1.251 albertel 2064: &Apache::response::poprandomnumber();
1.7 tsai 2065: }
1.6 tsai 2066: }
2067:
2068: sub end_randomlist {
1.159 albertel 2069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2070: my $result;
2071: if ($target eq 'edit' ) {
2072: $result=&Apache::edit::tag_end($target,$token,
2073: 'End Randomly Parsed Block');
2074: }
2075: return $result;
1.6 tsai 2076: }
2077:
1.283 albertel 2078: sub ordered_show_check {
2079: my $last_part=$Apache::inputtags::partlist[-2];
2080: my $in_order=
2081: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2082: my $in_order_show=1;
2083: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2084: $in_order_show=&Apache::response::check_status($last_part);
2085: }
2086: return $in_order_show;
2087: }
2088:
1.469 www 2089:
2090: sub start_startpartmarker {
2091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2092: my $result='';
2093: if ($target eq 'edit') {
2094: $result=&Apache::edit::tag_start($target,$token);
2095: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2096: $result.=&Apache::edit::end_table();
2097:
2098: }
2099: return $result;
2100: }
2101:
2102: sub end_startpartmarker {
2103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2104: my @result;
2105: if ($target eq 'edit') { $result[1]='no'; }
2106: return @result;
2107: }
2108:
2109: sub start_endpartmarker {
2110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2111: my $result='';
2112: if ($target eq 'edit') {
2113: $result=&Apache::edit::tag_start($target,$token);
2114: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2115: $result.=&Apache::edit::end_table();
2116:
2117: }
2118: return $result;
2119: }
2120:
2121: sub end_endpartmarker {
2122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2123: my @result;
2124: if ($target eq 'edit') { $result[1]='no'; }
2125: return @result;
2126: }
2127:
2128:
2129:
2130:
2131:
1.11 albertel 2132: sub start_part {
1.326 albertel 2133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2134: if (!$Apache::lonxml::metamode) {
2135: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2136: # duedates.
2137: }
1.159 albertel 2138: my $result='';
1.386 albertel 2139: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2140: $Apache::inputtags::part=$id;
1.177 albertel 2141: push(@Apache::inputtags::partlist,$id);
2142: @Apache::inputtags::response=();
1.159 albertel 2143: @Apache::inputtags::previous=();
2144: @Apache::inputtags::previous_version=();
1.405 albertel 2145: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2146: &Apache::response::reset_params();
2147:
1.159 albertel 2148: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2149: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2150: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2151: my $in_order_show=&ordered_show_check();
1.214 albertel 2152: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2153: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2154: &Apache::run::run($expression,$safeeval);
1.159 albertel 2155:
2156: if ($target eq 'meta') {
1.224 www 2157: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2158: return &Apache::response::mandatory_part_meta.
2159: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2160: } elsif ($target eq 'web' || $target eq 'grade' ||
2161: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2162: if ($hidden || !$in_order_show) {
1.326 albertel 2163: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2164: } else {
2165: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2166: push (@Apache::inputtags::status,$status);
2167: my $expression='$external::datestatus="'.$status.'";';
2168: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2169: &Apache::run::run($expression,$safeeval);
1.284 albertel 2170: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2171: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2172: }
1.216 albertel 2173: if (( $status eq 'CLOSED' ) ||
2174: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2175: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2176: ( $status eq 'BANNED') ||
2177: ( $status eq 'UNAVAILABLE') ||
2178: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2179: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2180: $style);
1.159 albertel 2181: if ( $target eq "web" ) {
1.211 albertel 2182: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2183: } elsif ( $target eq 'tex' ) {
1.284 albertel 2184: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2185: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2186: } else {
1.211 albertel 2187: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2188: }
1.159 albertel 2189: }
2190: } else {
2191: if ($target eq 'tex') {
1.284 albertel 2192: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2193: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2194: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2195: } else {
2196: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2197: }
1.195 sakharuk 2198: }
1.159 albertel 2199: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2200: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2201: my @allkeys = split /,/,$allkeys;
2202: my $allow_print_points = 0;
2203: foreach my $partial_key (@allkeys) {
1.230 albertel 2204: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2205: if ($1 ne '0') {$allow_print_points=1;}
2206: }
2207: }
1.275 albertel 2208: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2209: if (defined($maxtries) && $maxtries < 0) {
2210: $allow_print_points=0;
2211: }
1.302 albertel 2212: if (lc($env{'course.'.$env{'request.course.id'}.
2213: '.disableexampointprint'}) eq 'yes') {
2214: $allow_print_points=0;
2215: }
1.463 foxr 2216: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2217: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2218:
2219: }
1.233 www 2220: } elsif ($target eq 'web') {
1.479 raeburn 2221: if ($status eq 'CAN_ANSWER') {
2222: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2223: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2224: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2225: my $num = scalar(@Apache::inputtags::partlist)-1;
2226: if ($probrandomize eq 'randomizetry') {
2227: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2228: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2229: } else {
2230: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2231: if ($probrandtries ne $reqtries) {
2232: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2233: }
2234: }
2235: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2236: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2237: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2238: }
2239: }
1.475 raeburn 2240: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2241: }
2242: }
2243: }
2244: } elsif ($target eq 'edit') {
2245: $result.=&Apache::edit::tag_start($target,$token);
2246: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2247: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2248: ' '.
2249: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2250: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2251: } elsif ($target eq 'modified') {
2252: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2253: $safeeval,'id','display');
1.159 albertel 2254: if ($constructtag) {
1.225 albertel 2255: #limiting ids to only letters numbers, and space
1.224 www 2256: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2257: $result = &Apache::edit::rebuild_tag($token);
2258: }
2259: }
2260: return $result;
1.11 albertel 2261: }
2262:
2263: sub end_part {
1.159 albertel 2264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2265: &Apache::lonxml::debug("in end_part $target ");
2266: my $status=$Apache::inputtags::status['-1'];
2267: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2268: my $in_order_show=&ordered_show_check();
1.321 albertel 2269: my $result;
2270: if (!$Apache::lonxml::metamode) {
2271: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2272: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2273: }
1.312 albertel 2274: if ($target eq 'grade') {
1.249 albertel 2275: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2276: !$hidden && $in_order_show) {
1.311 foxr 2277: $result.=&Apache::inputtags::grade;
1.249 albertel 2278: } else {
2279: # move any submission data to .hidden
2280: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2281: }
1.283 albertel 2282: } elsif (($target eq 'web' || $target eq 'tex') &&
2283: !$hidden && $in_order_show) {
1.159 albertel 2284: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2285: $target);
1.490 raeburn 2286: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2287: ($env{'form.grade_imsexport'})) {
1.212 albertel 2288: $gradestatus='';
2289: }
1.311 foxr 2290: $result.=$gradestatus;
1.265 sakharuk 2291: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2292: } elsif ($target eq 'edit') {
1.311 foxr 2293: $result.=&Apache::edit::end_table();
1.322 albertel 2294: } elsif ($target eq 'modified') {
2295: $result .= $token->[2];
1.159 albertel 2296: }
2297: pop @Apache::inputtags::status;
2298: $Apache::inputtags::part='';
1.295 albertel 2299: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2300: return $result;
1.11 albertel 2301: }
1.1 albertel 2302:
1.25 albertel 2303: sub start_preduedate {
1.326 albertel 2304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2305: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2306: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2307: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2308: if (!$Apache::lonhomework::scantronmode &&
2309: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2310: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2311: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2312: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2313: }
1.24 albertel 2314: }
1.159 albertel 2315: return '';
1.24 albertel 2316: }
2317:
1.25 albertel 2318: sub end_preduedate {
1.159 albertel 2319: return '';
1.24 albertel 2320: }
2321:
1.369 foxr 2322: # In all the modes where <postanswerdate> text is
2323: # displayable, all we do is eat up the text between the start/stop
2324: # tags if the conditions are not right to display it.
1.25 albertel 2325: sub start_postanswerdate {
1.326 albertel 2326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2327: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2328: &Apache::lonnet::allowed('pav',
2329: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2330: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2331: $target eq 'tex' ) {
1.300 albertel 2332: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2333: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2334: (($target eq 'tex') && !$pav)) {
1.326 albertel 2335: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2336: }
2337: }
2338: return '';
1.24 albertel 2339: }
2340:
1.25 albertel 2341: sub end_postanswerdate {
1.159 albertel 2342: return '';
1.24 albertel 2343: }
2344:
1.25 albertel 2345: sub start_notsolved {
1.326 albertel 2346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2347: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2348: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2349: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2350: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2351: if ($gradestatus =~ /^correct/ &&
2352: &Apache::response::show_answer()) {
1.159 albertel 2353: &Apache::lonxml::debug("skipping");
1.326 albertel 2354: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2355: }
1.24 albertel 2356: }
1.159 albertel 2357: return '';
1.24 albertel 2358: }
2359:
1.25 albertel 2360: sub end_notsolved {
1.159 albertel 2361: return '';
1.24 albertel 2362: }
2363:
2364: sub start_solved {
1.326 albertel 2365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2366: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2367: $target eq 'tex') {
2368: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2369: if ($gradestatus !~ /^correct/ ||
2370: !&Apache::response::show_answer()) {
1.326 albertel 2371: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2372: }
1.24 albertel 2373: }
1.159 albertel 2374: return '';
1.24 albertel 2375: }
2376:
2377: sub end_solved {
1.248 albertel 2378: return '';
2379: }
2380:
2381: sub start_problemtype {
1.326 albertel 2382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2383: my $result;
1.339 albertel 2384: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2385: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2386: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2387: if (!defined($mode)) { $mode='show'; }
2388: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2389: my $found=0;
2390: foreach my $type (split(',',$for)) {
2391: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2392: }
2393: if ($mode eq 'show' && !$found) {
1.326 albertel 2394: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2395: }
2396: if ($mode eq 'hide' && $found) {
1.326 albertel 2397: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2398: }
2399: } elsif ($target eq 'edit') {
2400: $result .=&Apache::edit::tag_start($target,$token);
2401: $result.=&Apache::edit::select_arg('Mode:','mode',
2402: [['show','Show'],
2403: ['hide','Hide']]
2404: ,$token);
2405: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2406: [ ['exam','Exam/Quiz Problem'],
2407: ['survey','Survey'],
1.465 raeburn 2408: ['surveycred','Survey (with credit)'],
2409: ['anonsurvey','Anonymous Survey'],
2410: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2411: ['problem','Homework Problem'],
1.479 raeburn 2412: ['practice','Practice Problem'],
2413: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2414: ,$token);
2415: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2416: } elsif ($target eq 'modified') {
2417: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2418: $safeeval,'mode','for');
2419: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2420: }
2421: return $result;
2422: }
2423:
2424: sub end_problemtype {
1.159 albertel 2425: return '';
1.24 albertel 2426: }
1.34 albertel 2427:
2428: sub start_startouttext {
1.159 albertel 2429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2430: my @result=(''.'');
2431: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2432:
2433: my $nesting =
2434: &Apache::lonxml::set_state('outtext',
2435: &Apache::lonxml::get_state('outtext')+1);
2436: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2437: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2438: }
1.159 albertel 2439: return (@result);
1.34 albertel 2440: }
1.159 albertel 2441:
1.34 albertel 2442: sub end_startouttext {
1.326 albertel 2443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2444: my $result='';
2445: my $text='';
2446: if ($target eq 'edit') {
1.424 foxr 2447: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2448: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2449: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2450: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2451: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2452: .'</span></td>'
2453: .'<td align="left"><span id="math_'.$areaid.'" />'
2454: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2455: .'<span></td>'
2456: .'<td>'
2457: .&Apache::edit::insertlist($target,$token)
2458: .'</td>'
2459: .'<td align="right" valign="top">' .
2460: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2461: &Apache::edit::end_row().
1.362 albertel 2462: &Apache::edit::start_spanning_row()."\n".
1.255 www 2463: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2464: }
2465: if ($target eq 'modified') {
1.219 albertel 2466: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2467: }
2468: if ($target eq 'tex') {
2469: $result .= '\noindent ';
2470: }
2471: return $result;
1.34 albertel 2472: }
1.159 albertel 2473:
1.34 albertel 2474: sub start_endouttext {
1.159 albertel 2475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2476: my $result='';
2477: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2478: if ($target eq "modified") {
2479: $result='<endouttext />'.
1.377 albertel 2480: &Apache::edit::handle_insertafter('startouttext');
2481: }
1.404 albertel 2482:
2483: my $nesting =
2484: &Apache::lonxml::set_state('outtext',
2485: &Apache::lonxml::get_state('outtext')-1);
2486: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2487: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2488: &Apache::lonxml::set_state('outtext', 0);
2489: }
1.159 albertel 2490: return $result;
1.34 albertel 2491: }
1.159 albertel 2492:
1.34 albertel 2493: sub end_endouttext {
1.159 albertel 2494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2495: my @result=('','');
2496: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2497: return (@result);
1.34 albertel 2498: }
1.159 albertel 2499:
1.45 albertel 2500: sub delete_startouttext {
1.326 albertel 2501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2502: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2503: my $text=$$parser['-1']->get_text("/endouttext");
2504: my $ntoken=$$parser['-1']->get_token();
2505: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2506: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2507: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2508: # they did the last time round
2509: &Apache::lonxml::increasedepth($ntoken);
2510: &Apache::lonxml::decreasedepth($ntoken);
2511: return 1;
1.193 www 2512: }
2513:
2514: sub start_simpleeditbutton {
2515: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2516: my $result='';
1.284 albertel 2517: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2518: ($target eq 'web') &&
1.330 albertel 2519: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2520: my $url=$env{'request.noversionuri'};
1.193 www 2521: $url=~s/\?.*$//;
1.367 albertel 2522: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2523: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2524: # $result='<p class="LC_warning">'
2525: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2526: # .&Apache::loncommon::help_open_topic('Caching')
2527: # .'</p>';
1.486 www 2528: $result.=&Apache::loncommon::head_subbox(
2529: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2530: .&Apache::lonhtmlcommon::add_item_funclist(
2531: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2532: .&mt('Edit').'</a>')
1.486 www 2533: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2534:
1.193 www 2535: }
2536: return $result;
2537: }
2538:
2539: sub end_simpleeditbutton {
2540: return '';
1.45 albertel 2541: }
1.34 albertel 2542:
1.428 raeburn 2543: sub practice_problem_header {
2544: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2545: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2546: '</span>';
2547: }
2548:
1.479 raeburn 2549: sub randomizetry_problem_header {
2550: my ($problemstatus,$reqtries) = @_;
2551: my ($header,$text);
2552: if ($reqtries > 1) {
2553: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2554: if (($problemstatus eq 'no') ||
2555: ($problemstatus eq 'no_feedback_ever')) {
2556: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2557: } else {
2558: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2559: }
2560: } else {
2561: $header = &mt('New Problem Variation Each Try');
2562: if (($problemstatus eq 'no') ||
2563: ($problemstatus eq 'no_feedback_ever')) {
2564: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2565:
2566: } else {
2567: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2568: }
2569: }
2570: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2571: '<span class="LC_info">'.$text.'</span><hr />';
2572: }
2573:
2574: sub randomizetry_part_header {
2575: my ($problemstatus,$reqtries,$num) = @_;
2576: my ($header,$text);
2577: if ($reqtries eq 'none') {
2578: $header = &mt('No Question Variation');
2579: $text = &mt('For this question there will no new variation after a try.');
2580: } elsif ($reqtries > 1) {
2581: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2582: if (($problemstatus eq 'no') ||
2583: ($problemstatus eq 'no_feedback_ever')) {
2584: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2585: } else {
2586: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2587: }
2588: } else {
2589: $header = &mt('New Question Variation For Each Try');
2590: if (($problemstatus eq 'no') ||
2591: ($problemstatus eq 'no_feedback_ever')) {
2592: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2593: } else {
2594: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2595: }
2596: }
2597: my $output;
2598: if ($num > 1) {
2599: $output .= '<hr />';
2600: }
2601: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2602: '<span class="LC_info">'.$text.'</span><br /><br />';
2603: return $output;
2604: }
2605:
1.1 albertel 2606: 1;
2607: __END__
1.435 jms 2608:
2609: =pod
2610:
2611: =back
2612:
2613: =cut
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