Annotation of loncom/homework/structuretags.pm, revision 1.512.2.24.2.9
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.24.2. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.24.2.8 2024/01/13 12:30:59 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.512.2.24.2. (raeburn 65:): use Apache::lonnavmaps;
1.267 albertel 66: use Time::HiRes qw( gettimeofday tv_interval );
1.512.2.24 raeburn 67: use HTML::Entities();
1.356 www 68: use lib '/home/httpd/lib/perl/';
69: use LONCAPA;
70:
1.78 harris41 71: BEGIN {
1.469 www 72: &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 73: }
74:
1.500 foxr 75:
76: #---------------------------------------------------------------------------------
77: #
78: # This section of code deals with hyphenation management.
79: # We must do three things:
80: # - keep track fo the desired languages to alter the header.
81: # - provide hyphenation selection as needed by each language that appears in the
82: # text.
83: # - Provide the header text needed to make available the desired hyphenations.
84: #
85: #
86:
87: # Hash whose keys are the languages encountered in the document/resource.
88: #
89:
90: my %languages_required;
91: ##
92: # Given a language selection as input returns a chunk of LaTeX that
93: # selects the required hyphenator.
94: #
95: # @param language - the language being selected.
96: # @return string
97: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
98: #
99: sub select_hyphenation {
100: my $language = shift;
101:
102: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
103:
104: # If there is no latex language there's not much we can do:
105:
106: if ($language) {
107: &require_language($language);
108: my $babel_hyphenation = "\\selectlanguage{$language}";
109:
110: return $babel_hyphenation;
111: } else {
112: return '';
113: }
114: }
115: ##
116: # Selects hyphenation based on the current problem metadata.
117: # This requires that
118: # - There is a language metadata item set for the problem.
119: # - The language has a latex/babel hyphenation.
120: #
121: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
122: # this problem.
123: # @return string (possibly empty).
124: # @retval If not empty an appropriate \selectlanguage{} directive.
125: #
126: sub select_metadata_hyphenation {
127: my $uri = $Apache::lonxml::request->uri;
128: my $language = &Apache::lonnet::metadata($uri, 'language');
129: my $latex_language = &Apache::loncommon::latexhyphenation($language);
130: if ($latex_language) {
131: return '\selectlanguage{'.$latex_language."}\n";
132: }
133: return ''; # no latex hyphenation or no lang metadata.
134: }
135:
136:
137: ##
138: # Clears the set of languages required by the document being rendered.
139: #
140: sub clear_required_languages {
141: %languages_required = ();
142: }
143: ##
144: # Allows an external client of this module to register a need for a language:
145: #
146: # @param LaTeX language required:
147: #
148: sub require_language {
149: my $language = shift;
150: $languages_required{$language} = 1;
151: }
152:
153: ##
154: # Provides the header for babel that indicates the languages
155: # the document requires.
156: # @return string
157: # @retval \usepackage[lang1,lang2...]{babel}
158: # @retval '' if there are no languages_required.
159: sub languages_header {
160: my $header ='';
161: my @languages = (keys(%languages_required));
162:
163: # Only generate the header if there are languages:
164:
165: if (scalar @languages) {
166: my $language_list = join(',', (@languages));
167: $header = '\usepackage['.$language_list."]{babel}\n";
168: }
169: return $header;
170: }
171:
172: #----------------------------------------------------------------------------------
173:
1.10 albertel 174: sub start_web {
1.326 albertel 175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 176: if ($target ne 'edit' && $target ne 'modified') {
177: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
178: if ($target eq 'web' || $target eq 'webgrade') {
179: return $bodytext;
180: }
181: } elsif ($target eq "edit" ) {
182: my $bodytext =
183: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
184: my $result = &Apache::edit::tag_start($target,$token);
185: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
186: return $result;
187: } elsif ( $target eq "modified" ) {
188: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 189: }
190: return '';
1.10 albertel 191: }
192:
193: sub end_web {
1.44 ng 194: return '';
1.10 albertel 195: }
196:
197: sub start_tex {
1.326 albertel 198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 199: my $result='';
1.383 albertel 200: if ($target ne 'edit' && $target ne 'modified') {
201: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
202: if ($target eq 'tex') {
1.434 foxr 203:
204: # If inside a table, occurrences of \\ must be removed;
205: # else the table blows up.
206:
207: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
208: $bodytext =~ s/\\\\//g;
209: }
1.432 foxr 210: return $bodytext.'{}';
1.383 albertel 211: }
212: } elsif ($target eq "edit" ) {
213: my $bodytext =
214: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
215: my $result = &Apache::edit::tag_start($target,$token);
216: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
217: return $result;
218: } elsif ( $target eq "modified" ) {
219: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 220: }
1.198 sakharuk 221: return $result;;
1.10 albertel 222: }
223:
224: sub end_tex {
1.44 ng 225: return '';
1.9 albertel 226: }
227:
1.400 albertel 228: sub homework_js {
1.512.2.9 raeburn 229: my ($postsubmit,$timeout);
230: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
231: my $crstype;
232: if (&Apache::loncommon::course_type() eq 'Community') {
233: $crstype = 'community';
234: } else {
235: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
236: $crstype = 'official';
237: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
238: $crstype = 'textbook';
239: } else {
240: $crstype = 'unofficial';
241: }
242: }
243: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
244: if ($postsubmit eq '') {
245: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
246: $postsubmit = $domdefs{'postsubmit'};
247: unless ($postsubmit eq 'off') {
248: $timeout = $domdefs{$crstype.'postsubtimeout'};
249: }
250: } elsif ($postsubmit eq '0') {
251: $postsubmit = 'off';
252: } elsif ($postsubmit eq '1') {
253: $postsubmit = 'on';
254: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
255: if ($timeout eq '') {
256: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
257: $timeout = $domdefs{$crstype.'postsubtimeout'};
258: }
259: }
260: if ($timeout eq '') {
261: $timeout = 60;
262: }
263: } else {
264: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
265: $postsubmit = $domdefs{'postsubmit'};
266: unless ($postsubmit eq 'off') {
267: $timeout = 60;
268: }
269: }
270: my $jstimeout = 0;
271: if ($timeout) {
272: $jstimeout = 1000 * $timeout;
273: }
1.400 albertel 274: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 275: &Apache::loncommon::colorfuleditor_js().
1.512.2.24.2. (raeburn 276:): &Apache::lonxml::setmode_javascript().
1.512.2.9 raeburn 277: <<"JS";
1.400 albertel 278: <script type="text/javascript">
1.483 raeburn 279: // <![CDATA[
1.494 raeburn 280: function setSubmittedPart (part,prefix) {
281: if (typeof(prefix) == 'undefined') {
282: this.document.lonhomework.submitted.value="part_"+part;
283: } else {
284: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
285: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
286: this.document.lonhomework.elements[i].value="part_"+part;
287: }
288: }
289: }
1.400 albertel 290: }
291:
1.512.2.9 raeburn 292: function disableAutoComplete (id) {
293: var field = document.getElementById(id);
294: if (field != null && field != undefined){
295: if ('autocomplete' in field) {
296: field.autocomplete = "off";
297: } else {
298: field.setAttribute("autocomplete", "off");
299: }
300: }
301: }
302:
1.400 albertel 303: function image_response_click (which, e) {
304: init_geometry();
305: if (!e) { e = window.event; } //IE
306: var input_element = document.lonhomework.elements[which];
1.401 albertel 307: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 308: var token = token_element.value;
1.401 albertel 309: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 310: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
311: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
312: var click = x+':'+y;
313: input_element.value = click;
1.485 raeburn 314: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 315: }
1.512.2.9 raeburn 316:
317: var submithandled = 0;
318: var keypresshandled = 0;
319: var postsubmit = '$postsubmit';
320:
321: \$(document).ready(function(){
322: if (postsubmit != 'off') {
323: \$(document).keypress(function(event){
324: var keycode = (event.keyCode ? event.keyCode : event.which);
325: if ((keycode == '13') && (keypresshandled == 0)) {
326: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
327: keypresshandled = 1;
328: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
329: if (idsArray.length) {
330: event.preventDefault();
331: var itemsArray = idsArray[1].split(/_/);
332: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
333: \$("#"+buttonId).trigger("click");
334: }
335: }
336: }
337: });
338:
339: \$(document).delegate('form :submit', 'click', function( event ) {
340: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
341: var buttonId = this.id;
342: var timeout = $jstimeout;
343: if (submithandled == 0) {
344: submithandled = 1;
345: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
346: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 347: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 348: if (buttonId != "all_submit") {
349: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 350: }
351: if (( "#"+buttonId+"_pressed" ).length) {
352: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 353: }
354: } else {
355: \$( ".LC_status_"+buttonId ).hide();
356: }
357: \$(this.form).submit();
358: \$( ".LC_hwk_submit" ).prop( "disabled", true);
359: \$( ".LC_textline" ).prop( "readonly", "readonly");
360: event.preventDefault();
361:
362: if (timeout > 0) {
363: setTimeout(function(){
364: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 365: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
366: if (( "#"+buttonId+"_pressed" ).length) {
367: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.48 albertel 388: sub page_start {
1.345 albertel 389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
390: $extra_head)=@_;
1.159 albertel 391: my %found;
1.207 albertel 392: foreach my $taginside (@$tagstack) {
1.159 albertel 393: foreach my $taglookedfor ('html','body','form') {
394: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
395: }
396: }
397:
1.343 albertel 398: if ($target eq 'tex') {
399: return
400: &Apache::londefdef::start_html($target,$token,$tagstack,
401: $parstack,$parser,$safeeval);
402: }
403:
1.474 raeburn 404: $extra_head .= &homework_js().
405: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
406: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 407: my %textarea_args;
408: if (($env{'request.state'} ne 'construct') ||
409: ($env{'environment.nocodemirror'})) {
410: %textarea_args = (
1.474 raeburn 411: dragmath => 'math',
412: );
1.512.2.12 raeburn 413: }
1.474 raeburn 414: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 415: }
1.478 raeburn 416: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 417: my ($needs_upload,$partlist);
1.495 raeburn 418: my ($symb)= &Apache::lonnet::whichuser();
419: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 420: if ($is_task) {
1.495 raeburn 421: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 422: } else {
423: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 424: unless ($env{'request.state'} eq 'construct') {
425: my $navmap = Apache::lonnavmaps::navmap->new();
426: if (ref($navmap)) {
427: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 428: my $is_page;
429: if (ref($mapres)) {
430: $is_page = $mapres->is_page();
431: }
432: unless ($is_page) {
1.495 raeburn 433: $needs_upload = 1;
434: }
1.512.2.9 raeburn 435: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
436: my $res = $navmap->getBySymb($symb);
437: if (ref($res)) {
438: $partlist = $res->parts();
439: }
440: }
1.495 raeburn 441: }
442: }
1.493 raeburn 443: } else {
444: unless ($env{'request.state'} eq 'construct') {
445: my $navmap = Apache::lonnavmaps::navmap->new();
446: if (ref($navmap)) {
1.495 raeburn 447: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 448: my $is_page;
449: if (ref($mapres)) {
450: $is_page = $mapres->is_page();
451: }
1.512.2.9 raeburn 452: if ($is_page) {
453: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
454: my $res = $navmap->getBySymb($symb);
455: if (ref($res)) {
456: $partlist = $res->parts();
457: }
458: }
459: } else {
1.495 raeburn 460: my $res = $navmap->getBySymb($symb);
461: if (ref($res)) {
1.512.2.9 raeburn 462: $partlist = $res->parts();
1.495 raeburn 463: if (ref($partlist) eq 'ARRAY') {
464: foreach my $part (@{$partlist}) {
465: my @types = $res->responseType($part);
466: my @ids = $res->responseIds($part);
467: for (my $i=0; $i < scalar(@ids); $i++) {
468: if ($types[$i] eq 'essay') {
469: my $partid = $part.'_'.$ids[$i];
470: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
471: $needs_upload = 1;
472: last;
473: }
1.493 raeburn 474: }
475: }
476: }
1.495 raeburn 477: }
478: }
1.493 raeburn 479: }
480: }
481: }
482: }
1.495 raeburn 483: if ($needs_upload) {
1.512.2.17 raeburn 484: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
485: '<script type="text/javascript" '.
486: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 487: }
1.478 raeburn 488: }
1.425 raeburn 489:
1.344 albertel 490: my %body_args;
491: if (defined($found{'html'})) {
492: $body_args{'skip_phases'}{'head'}=1;
493: } else {
1.343 albertel 494:
1.345 albertel 495: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 496:
1.379 albertel 497: $extra_head .= &Apache::londefdef::generate_css_links();
498:
1.384 albertel 499: if ($env{'request.state'} eq 'construct') {
1.343 albertel 500: $extra_head.=&Apache::edit::js_change_detection().
501: "<script type=\"text/javascript\">\n".
502: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
503: &Apache::loncommon::browser_and_searcher_javascript().
504: "\n</script>\n";
1.512.2.9 raeburn 505: if ($target eq 'edit') {
506: $extra_head .= &Apache::edit::js_update_linknum();
507: }
1.343 albertel 508: }
1.159 albertel 509: }
1.343 albertel 510:
1.446 bisitz 511: my $pageheader = '';
1.344 albertel 512: if (defined($found{'body'})) {
513: $body_args{'skip_phases'}{'body'}=1;
514: } elsif (!defined($found{'body'})
515: && $env{'request.state'} eq 'construct') {
1.343 albertel 516: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 517: # Breadcrumbs for Authoring Space
1.450 bisitz 518: &Apache::lonhtmlcommon::clear_breadcrumbs();
519: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 520: 'text' => 'Authoring Space',
1.497 raeburn 521: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 522: });
1.460 droeschl 523: # breadcrumbs (and tools) will be created
524: # in start_page->bodytag->innerregister
525:
1.450 bisitz 526: # FIXME Where are we?
527: # &Apache::lonhtmlcommon::add_breadcrumb({
528: # 'text' => 'Problem Editing', # 'Problem Testing'
529: # 'href' => '',
530: # });
1.460 droeschl 531: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 532: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 533: }
1.272 albertel 534: } elsif (!defined($found{'body'})) {
1.343 albertel 535: my %add_entries;
1.159 albertel 536: my $background=&Apache::lonxml::get_param('background',$parstack,
537: $safeeval);
1.343 albertel 538: if ($background ne '' ) {
539: $add_entries{'background'} = $background;
540: }
1.344 albertel 541:
1.290 albertel 542: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
543: $safeeval);
1.446 bisitz 544: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 545:
1.446 bisitz 546: $body_args{'bgcolor'} = $bgcolor;
547: # $body_args{'no_title'} = 1;
548: $body_args{'force_register'} = 1;
549: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 550: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 551: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 552: } elsif ($target eq 'web') {
553: $body_args{'print_suppress'} = 1;
1.446 bisitz 554: }
1.344 albertel 555: }
1.365 albertel 556: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 557: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
558: \%body_args);
1.446 bisitz 559: $page_start .= $pageheader;
1.462 raeburn 560: if (!defined($found{'body'})
561: && $env{'request.state'} ne 'construct'
562: && ($target eq 'web' || $target eq 'webgrade')) {
563:
564: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
565: if ($symb eq '' && !$publicuser) {
566: $page_start .= '<p class="LC_info">'
567: .&mt('Browsing resource, all submissions are temporary.')
568: .'</p>';
1.457 bisitz 569: }
1.344 albertel 570: }
571:
1.409 albertel 572: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 573: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 574: }
575: my $form_tag_start;
576: if (!defined($found{'form'})) {
1.337 albertel 577: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 578: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 579: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 580: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 581: $form_tag_start.=$uri.'" ';
582: if ($target eq 'edit') {
583: $form_tag_start.=&Apache::edit::form_change_detection();
584: }
1.493 raeburn 585: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
586: my ($path,$multiresp) =
587: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.512.2.24.2. (raeburn 588:): if ($env{'request.user_in_effect'}) {
589:): $form_tag_start .= ' onsubmit="preventDefault();"';
590:): } elsif (($is_task) || ($needs_upload)) {
1.495 raeburn 591: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 592: }
1.368 albertel 593: $form_tag_start.='>'."\n";
1.355 albertel 594:
595: if ($symb =~ /\S/) {
596: $symb=
597: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
598: $form_tag_start.=
1.368 albertel 599: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 600: }
1.159 albertel 601: }
1.512.2.9 raeburn 602: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 603: }
604:
1.141 matthew 605: #use Time::HiRes();
1.105 albertel 606: sub get_resource_name {
1.159 albertel 607: my ($parstack,$safeeval)=@_;
1.388 foxr 608: my $name;
1.204 albertel 609: if (defined($Apache::lonhomework::name)) {
1.388 foxr 610: $name = $Apache::lonhomework::name;
611: } else {
612: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 613: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 614: if ($name eq '') {
615: $name=&Apache::lonnet::EXT('resource.title');
616: if ($name eq 'con_lost') { $name = ''; }
617: }
618: if ($name!~/\S+/) {
619: $name=$env{'request.uri'};
620: $name=~s-.*/([^/]+)$-$1-;
621: }
622: # The name has had html tags escaped:
623:
624: $name=~s/</</gs;
625: $name=~s/>/>/gs;
626:
627: $Apache::lonhomework::name=$name;
1.204 albertel 628: }
1.159 albertel 629: return $name;
1.105 albertel 630: }
631:
632: sub setup_rndseed {
1.512.2.9 raeburn 633: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 634: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 635: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 636: if ($target eq 'analyze') {
637: $questiontype = $env{'form.grade_questiontype'};
638: }
639: unless (defined($questiontype)) {
640: $questiontype = $Apache::lonhomework::type;
641: }
1.512.2.19 raeburn 642: if ($Apache::lonhomework::type eq 'randomizetry') {
643: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 644: #
645: # Where question type is "randomizetry" for a problem containing
646: # a single part (and unless type is explicitly set to not be
647: # "randomizetry" for that part), the number of tries used to
648: # determine randomization will be for that part, and randomization
649: # from calls to &random() in a perl script block before the part tag,
650: # will change based on the number of tries, and value of the
651: # "randomizeontries" parameter in effect for the single part.
652: #
1.512.2.19 raeburn 653: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 654: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
655: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 656: $partfortries = $probpartlist->[0];
657: } else {
658: $partfortries = '';
659: }
1.512.2.19 raeburn 660: }
661: }
1.512.2.21 raeburn 662: if ($partfortries ne '') {
663: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
664: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
665: }
1.512.2.19 raeburn 666: }
1.512.2.24.2. (raeburn 667:): if (($env{'request.state'} eq "construct")
1.512.2.14 raeburn 668: || ($symb eq '')
669: || ($Apache::lonhomework::type eq 'practice')
1.512.2.24.2. (raeburn 670:): || ($Apache::lonhomework::history{'resource.CODE'})
1.512.2.14 raeburn 671: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 672: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 673: ['rndseed']);
1.284 albertel 674: $rndseed=$env{'form.rndseed'};
1.159 albertel 675: if (!$rndseed) {
1.162 albertel 676: $rndseed=$Apache::lonhomework::history{'rndseed'};
677: if (!$rndseed) {
678: $rndseed=time;
679: }
1.512.2.14 raeburn 680: unless ($env{'form.code_for_randomlist'}) {
681: $env{'form.rndseed'}=$rndseed;
682: }
1.162 albertel 683: }
1.512.2.20 raeburn 684: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 685: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 686: if ($numtries) {
687: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
688: my $inc = int($numtries/$reqtries);
689: $rndseed += $inc;
690: } else {
691: $rndseed += $numtries;
692: }
1.479 raeburn 693: }
1.480 raeburn 694: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 695: }
1.374 albertel 696: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
697: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 698: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 699: srand(time);
700: $rndseed=int(rand(2100000000));
1.284 albertel 701: $env{'form.rndseed'}=$rndseed;
702: delete($env{'form.resetdata'});
703: delete($env{'form.newrandomization'});
1.159 albertel 704: }
1.488 www 705: $rndseed=~s/\,/\:/g;
706: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 707: if (defined($rndseed)) {
708: my ($c1,$c2)=split(/\:/,$rndseed);
709: unless ($c2) { $c2=0; }
710: unless (($c1==int($c1)) && ($c2==int($c2))) {
711: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
712: }
1.187 albertel 713: }
1.512.2.14 raeburn 714: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
715: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
716: $rndseed=&Apache::lonnet::rndseed();
717: undef($env{'form.CODE'});
718: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 719: $rndseed=&Apache::lonnet::rndseed();
720: }
1.479 raeburn 721: $set_safespace = 1;
722: } elsif ($questiontype eq 'randomizetry') {
723: if ($target eq 'analyze') {
724: if (defined($env{'form.grade_rndseed'})) {
725: $rndseed = $env{'form.grade_rndseed'};
726: }
727: }
728: unless (($target eq 'analyze') && (defined($rndseed))) {
729: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 730: my $curr_try = $numtries;
1.479 raeburn 731: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
732: $curr_try ++;
733: }
734: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
735: $rndseed = $1;
736: }
737: if ($curr_try) {
738: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
739: my $inc = int(($curr_try-1)/$reqtries);
740: $rndseed += $inc;
741: } else {
742: $rndseed += $curr_try;
743: }
744: }
745: }
746: $set_safespace = 1;
1.512.2.9 raeburn 747: if ($target eq 'grade') {
748: $Apache::lonhomework::rawrndseed = $rndseed;
749: }
1.479 raeburn 750: }
751: if ($set_safespace) {
752: if ($safeeval) {
753: &Apache::lonxml::debug("Setting rndseed to $rndseed");
754: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
755: }
756: }
757: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
758: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 759: }
760: return $rndseed;
1.105 albertel 761: }
762:
1.268 albertel 763: sub remember_problem_state {
764: return '
1.284 albertel 765: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
766: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
767: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 768: }
769:
1.487 www 770: sub problem_edit_action_button {
771: my ($name,$action,$accesskey,$text,$flag)=@_;
772: my $actionscript="setmode(this.form,'$action')";
773: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
774: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
775: }
776:
1.423 www 777: sub problem_edit_buttons {
1.487 www 778: my ($mode)=@_;
1.512.2.11 raeburn 779: # Buttons that save
780: my $result = '<div style="float:right">';
781: if ($mode eq 'editxml') {
782: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
783: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
784: } else {
785: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
786: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
787: }
788: $result.="\n</div>\n";
1.487 www 789: # Buttons that do not save
1.512.2.11 raeburn 790: $result .= '<div>'.
1.487 www 791: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
792: if ($mode eq 'editxml') {
793: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
794: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 795: if ($env{'environment.nocodemirror'}) {
796: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
797: }
1.487 www 798: } else {
799: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
800: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
801: }
802: $result.="\n</div>";
803: return $result;
1.423 www 804: }
805:
806: sub problem_edit_header {
1.512.2.11 raeburn 807: my ($mode)=@_;
808: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 809: &remember_problem_state('edit').'
1.512.2.11 raeburn 810: <div class="LC_edit_problem_header">
811: <div class="LC_edit_problem_header_title">
812: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
813: </div><div class="LC_edit_actionbar" id="actionbar">'.
814: '<input type="hidden" name="problemmode" value="saveedit" />'.
815: &problem_edit_buttons();
816:
817: $return .= '</div></div>' . &Apache::lonxml::message_location();
818: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
819: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
820:
821: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
822: <script type="text/javascript">
823: // unless internet explorer
824: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
825: $(document).ready(
826: function() {
827: $(\'.LC_edit_actionbar\').scrollToFixed(
828: {
829: fixed: function(){
830: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
831: $(this).find(\'.LC_edit_actionbar\');
832: }
833: }
834: );
835: }
836: );
837: }
838: </script>
839: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
840: return $return;
1.105 albertel 841: }
842:
1.512.2.11 raeburn 843:
1.105 albertel 844: sub problem_edit_footer {
1.512.2.11 raeburn 845: my $resource = $env{'request.ambiguous'};
1.412 albertel 846: return '</td></tr></table><br />
847: <div class="LC_edit_problem_footer">
1.453 bisitz 848: <hr />'.
1.423 www 849: &problem_edit_buttons().'
1.459 bisitz 850: <hr style="clear:both;" />
1.512.2.11 raeburn 851: <script type="text/javascript">
852: restoreState("'.$resource.'");
853: restoreScrollPosition("'.$resource.'");
854: </script>
1.412 albertel 855: </div>
856: '.
1.342 albertel 857: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 858: }
859:
1.235 albertel 860: sub option {
861: my ($value,$name) = @_;
862: my $result ="<option value='".$value."' ";
1.284 albertel 863: if ($env{'form.'.$name} eq $value) {
1.235 albertel 864: $result.=" selected='on' ";
865: }
866: $result.='>';
867: return $result;
868: }
869:
1.105 albertel 870: sub problem_web_to_edit_header {
1.159 albertel 871: my ($rndseed)=@_;
1.406 albertel 872: my $result .= '<div class="LC_edit_problem_header">';
873:
874: if (!$Apache::lonhomework::parsing_a_task) {
875: $result .=
876: '<div class="LC_edit_problem_header_title">'.
877: &mt('Problem Testing').
878: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
879: '</div>';
880: } else {
881: $result .=
882: '<div class="LC_edit_problem_header_title">'.
883: &mt('Task Testing').
884: '</div>';
885: }
886:
1.315 albertel 887: my $show_all_foils_text =
888: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 889: &mt('Show All Instances')
890: : &mt('Show All Foils');
1.315 albertel 891:
1.452 bisitz 892: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
893: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 894: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 895: $show_all.= ' /> '.$show_all_foils_text
896: .'</label></span>';
1.406 albertel 897:
898:
1.384 albertel 899:
1.406 albertel 900: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 901: if (!$Apache::lonhomework::parsing_a_task) {
902: $result.="
1.406 albertel 903: <div class='LC_edit_problem_header_row1'>
904: <span class=\"LC_nobreak\">
1.405 albertel 905: ".&mt("Problem Status:")."
1.235 albertel 906: <select name='problemstate'>
1.270 albertel 907: <option value=''></option>
1.235 albertel 908: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
909: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
910: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
911: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
912: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
913: </select>
1.406 albertel 914: </span>
915: <span class=\"LC_nobreak\">
1.405 albertel 916: ".&mt("Problem Type:")."
1.235 albertel 917: <select name='problemtype'>
1.270 albertel 918: <option value=''></option>
1.512.2.1 raeburn 919: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 920: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 921: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 922: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
923: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
924: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 925: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 926: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 927: </select>
1.406 albertel 928: </span>
929: $show_all
930: </div>
931: <div class='LC_edit_problem_header_row2'>
932: <span class=\"LC_nobreak\">
1.405 albertel 933: ".&mt("Feedback Mode:")."
1.235 albertel 934: <select name='problemstatus'>
935: <option value=''></option>
1.242 albertel 936: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 937: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 938: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 939: </select>
1.406 albertel 940: </span>
941: ";
942:
1.376 albertel 943: } elsif ($Apache::lonhomework::parsing_a_task) {
944: $result.="
1.406 albertel 945: <div class='LC_edit_problem_header_row1'>
946: <span class=\"LC_nobreak\">
1.405 albertel 947: ".&mt("Problem Status:")."
1.376 albertel 948: <select name='problemstate'>
949: <option value=''></option>
950: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
951: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
952: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
953: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
954: </select>
1.406 albertel 955: </span>
956: $show_all
957: ";
958: }
959: $result.='
960: <span class="LC_nobreak">
961: '.&mt('Apply style file: ').'
962: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
963: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
964: </span>
1.422 www 965: </div>
966: <div class="LC_edit_problem_header_row1">'.
967: &Apache::lonxml::renderingoptions().'
1.406 albertel 968: </div>
969: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
970: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
971: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
972: </div>
1.453 bisitz 973: <hr />
1.406 albertel 974: <div class="LC_edit_problem_header_randomize_row">
975: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
976: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 977: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 978: $rndseed.'"
979: onchange="javascript:document.lonhomework.changerandseed.click()" />';
980:
981: if (!$Apache::lonhomework::parsing_a_task) {
982: my $numtoanalyze=$env{'form.numtoanalyze'};
983: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 984: $result .= '<span class="LC_nobreak">'.
985: &mt('[_1] for [_2] versions.',
1.416 raeburn 986: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 987: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
988: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 989: $numtoanalyze.'" size="5" />').
990: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
991: '</span>';
992:
1.313 albertel 993: }
1.406 albertel 994:
995: $result.='
996: </div>
1.453 bisitz 997: <hr />
1.447 bisitz 998: <div>';
1.416 raeburn 999: $result.='<input type="hidden" name="problemmode" value="view" />';
1000: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1001: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1002: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1003: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1004: $result.='
1005: </div>
1.453 bisitz 1006: <hr />
1.409 albertel 1007: '.&Apache::lonxml::message_location().'
1.406 albertel 1008: </div>';
1.159 albertel 1009: return $result;
1.48 albertel 1010: }
1011:
1.65 albertel 1012: sub initialize_storage {
1.357 albertel 1013: my ($given_symb) = @_;
1.353 albertel 1014: undef(%Apache::lonhomework::results);
1015: undef(%Apache::lonhomework::history);
1.357 albertel 1016: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1017: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1018:
1019: # anonymous users (CODEd exams) have no data
1020: if ($name eq 'anonymous'
1021: && !defined($domain)) {
1022: return;
1023: }
1024:
1.333 albertel 1025: if ($env{'request.state'} eq 'construct'
1026: || $symb eq ''
1027: || $Apache::lonhomework::type eq 'practice') {
1028:
1029: my $namespace = $symb || $env{'request.uri'};
1030: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1031: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1032: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1033: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1034: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1035: &Apache::lonxml::debug("Attempt reset");
1036: }
1.159 albertel 1037: %Apache::lonhomework::history=
1.333 albertel 1038: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1039: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1040: &Apache::lonxml::debug("Return message of $temp");
1041: } else {
1042: %Apache::lonhomework::history=
1043: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1044: }
1.353 albertel 1045:
1.159 albertel 1046: #ignore error conditions
1.512.2.9 raeburn 1047: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1048: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1049: }
1050:
1.435 jms 1051: =pod
1052:
1053: =item finalize_storage()
1054:
1.512.2.9 raeburn 1055: Stores away the result hash to a student's environment;
1056: checks form.grade_ for specific values, otherwise stores
1057: to the running user's environment.
1058:
1059: &check_correctness_changes() is called in two circumstances
1060: in which the results hash is to be stored permanently, for
1061: grading triggered by a student's submission, where feedback on
1062: correctness is to be provided to the student.
1063:
1064: 1. Immediately prior to storing the results hash
1065:
1066: To handle the case where a student's submission (and award) were
1067: stored after history was retrieved in &initialize_storage(), e.g.,
1068: if a student submitted answers in quick succession (e.g., from
1069: multiple tabs). &Apache::inputtags::hidealldata() is called for
1070: any parts with out-of-order storage (i.e., correct then incorrect,
1071: where awarded >= 1 when correct).
1072:
1073: 2. Immediately after storing the results hash
1074:
1075: To handle the case where lond on the student's homeserver returns
1076: delay:N -- where N is the number of transactions between the last
1077: retrieved in &initialize_storage() and the last stored immediately
1078: before permanent storage of the current transaction via
1079: lond::store_handler(). &Apache::grades::makehidden() is called
1080: for any parts with out-of-order storage (i.e., correct then incorrect,
1081: where awarded >= 1 when correct).
1082:
1.512.2.24.2. (raeburn 1083:): Will call &store_aggregates() to increment totals for attempts,
1.512.2.9 raeburn 1084: students, and corrects, if running user has student role.
1.512.2.24.2. (raeburn 1085:):
1.435 jms 1086: =cut
1087:
1088:
1.65 albertel 1089: sub finalize_storage {
1.357 albertel 1090: my ($given_symb) = @_;
1.159 albertel 1091: my $result;
1.289 albertel 1092: if (%Apache::lonhomework::results) {
1.323 albertel 1093: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1094: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1095: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1096: &Apache::lonnet::whichuser($given_symb);
1.512.2.24.2. (raeburn 1097:): my ($passback,$pbscope,$pbmap,$pbsymb,$pbtype,$crsdef,$ltinum,
1098:): $ltiref,$total,$possible,$dopassback);
1.333 albertel 1099: if ($env{'request.state'} eq 'construct'
1100: || $symb eq ''
1101: || $Apache::lonhomework::type eq 'practice') {
1102: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1103: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1104: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1105: $namespace,'',$domain,$name);
1.159 albertel 1106: &Apache::lonxml::debug('Construct Store return message:'.$result);
1107: } else {
1.512.2.24.2. (raeburn 1108:): my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.512.2.9 raeburn 1109: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1110: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1111: (!defined($env{'form.grade_courseid'}))) {
1.512.2.24.2. (raeburn 1112:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1113:): my ($map)=&Apache::lonnet::decode_symb($symb);
1114:): $map = &Apache::lonnet::clutter($map);
1115:): if ($env{'request.lti.login'}) {
1116:): ($passback,$pbscope,$pbmap,$pbsymb,$ltinum,$ltiref) =
1117:): &needs_lti_passback($courseid,$symb,$map);
1118:): } elsif ($env{'request.deeplink.login'}) {
1119:): ($passback,$pbscope,$pbmap,$pbsymb,$crsdef,$ltinum,$ltiref) =
1120:): &needs_linkprot_passback($courseid,$symb,$map);
1121:): }
1122:): }
1.512.2.9 raeburn 1123: if ($Apache::lonhomework::history{'version'}) {
1124: $laststore = $Apache::lonhomework::history{'version'}.'='.
1125: $Apache::lonhomework::history{'timestamp'};
1126: } else {
1127: $laststore = '0=0';
1128: }
1.512.2.24.2. (raeburn 1129:): %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.512.2.9 raeburn 1130: if ($record{'version'}) {
1131: my ($newversion,$oldversion,$oldtimestamp);
1132: if ($Apache::lonhomework::history{'version'}) {
1133: $oldversion = $Apache::lonhomework::history{'version'};
1134: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1135: } else {
1136: $oldversion = 0;
1137: $oldtimestamp = 0;
1138: }
1139: if ($record{'version'} > $oldversion) {
1140: if ($record{'timestamp'} >= $oldtimestamp) {
1141: $laststore = $record{'version'}.'='.$record{'timestamp'};
1142: $newversion = $record{'version'} + 1;
1143: $checkedparts = 1;
1144: foreach my $key (keys(%Apache::lonhomework::results)) {
1145: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1146: my $part = $1;
1147: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1148: push(@parts,$part);
1149: }
1150: }
1151: }
1152: if (@parts) {
1153: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1154: \%record,\@parts,$newversion,
1155: $oldversion);
1156: if (@parts_to_hide) {
1157: foreach my $part (@parts_to_hide) {
1158: $postcorrect{$part} = 1;
1159: &Apache::inputtags::hidealldata($part);
1160: }
1161: }
1162: }
1163: }
1164: }
1165: }
1166: }
1.159 albertel 1167: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1168: $symb,$courseid,$domain,$name,$laststore);
1169: if ($result =~ /^delay\:(\d+)$/) {
1170: my $numtrans = $1;
1171: my ($oldversion) = split(/=/,$laststore);
1172: if ($numtrans) {
1173: my $newversion = $oldversion + 1 + $numtrans;
1174: my @possparts;
1175: if ($checkedparts) {
1176: foreach my $part (@parts) {
1177: unless ($postcorrect{$part}) {
1178: push(@possparts,$part);
1179: }
1180: }
1181: } else {
1182: foreach my $key (keys(%Apache::lonhomework::results)) {
1183: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1184: my $part = $1;
1185: unless ($postcorrect{$part}) {
1186: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1187: push(@possparts,$part);
1188: }
1189: }
1190: }
1191: }
1192: }
1193: if (@possparts) {
1194: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1195: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1196: \%newrecord,\@possparts,$newversion,
1197: $oldversion);
1198: if (@parts_to_hide) {
1199: my $partslist = join(',',@parts_to_hide);
1200: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1201: }
1202: }
1203: }
1204: }
1.512.2.24.2. (raeburn 1205:): if ($passback) {
1206:): foreach my $key (keys(%Apache::lonhomework::results)) {
1207:): if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1208:): my $part = $1;
1209:): if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1210:): ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1211:): ($Apache::lonhomework::results{"resource.$part.tries"})) {
1212:): $dopassback = 1;
1213:): last;
1214:): }
1215:): }
1216:): }
1217:): }
1218:): if (($dopassback) && ($pbscope eq 'resource') && ($pbsymb eq $symb)) {
1219:): $total = 0;
1220:): $possible = 0;
1221:): my $navmap = Apache::lonnavmaps::navmap->new();
1222:): if (ref($navmap)) {
1223:): my $res = $navmap->getBySymb($symb);
1224:): if (ref($res)) {
1225:): my $partlist = $res->parts();
1226:): if (ref($partlist) eq 'ARRAY') {
1227:): foreach my $part (@{$partlist}) {
1228:): unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1229:): next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1230:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1231:): $possible += $weight;
1232:): if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1233:): my $awarded = $record{"resource.$part.awarded"};
1234:): if ($awarded) {
1235:): $total += $weight * $awarded;
1236:): }
1237:): }
1238:): }
1239:): }
1240:): }
1241:): }
1242:): }
1243:): foreach my $key (keys(%Apache::lonhomework::results)) {
1244:): if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1245:): my $part = $1;
1246:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1247:): $possible += $weight;
1248:): my $awarded = $Apache::lonhomework::results{$key};
1249:): if ($awarded) {
1250:): $total += $weight * $awarded;
1251:): }
1252:): }
1253:): }
1254:): }
1.159 albertel 1255: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1256: &store_aggregates($symb,$courseid);
1.512.2.24.2. (raeburn 1257:): if ($dopassback) {
1258:): my $scoreformat = 'decimal';
1259:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1260:): if (ref($ltiref) eq 'HASH') {
1261:): if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1262:): $scoreformat = $1;
1263:): }
1264:): }
1265:): }
1266:): my ($pbid,$pburl,$pbtype);
1267:): if ($env{'request.lti.login'}) {
1268:): $pbid = $env{'request.lti.passbackid'};
1269:): $pburl = $env{'request.lti.passbackurl'};
1270:): $pbtype = 'lti';
1271:): } elsif ($env{'request.deeplink.login'}) {
1272:): $pbid = $env{'request.linkprotpbid'};
1273:): $pburl = $env{'request.linkprotpburl'};
1274:): $pbtype = 'linkprot';
1275:): }
1276:): my $ltigrade = {
1277:): 'ltinum' => $ltinum,
1278:): 'lti' => $ltiref,
1279:): 'crsdef' => $crsdef,
1280:): 'cid' => $courseid,
1281:): 'uname' => $env{'user.name'},
1282:): 'udom' => $env{'user.domain'},
1283:): 'pbid' => $pbid,
1284:): 'pburl' => $pburl,
1285:): 'pbtype' => $pbtype,
1286:): 'scope' => $pbscope,
1287:): 'pbmap' => $pbmap,
1288:): 'pbsymb' => $pbsymb,
1289:): 'format' => $scoreformat,
1290:): };
1291:): if ($pbscope eq 'resource') {
1292:): $ltigrade->{'total'} = $total;
1293:): $ltigrade->{'possible'} = $possible;
1294:): }
1295:): push(@Apache::lonhomework::ltipassback,$ltigrade);
1296:): }
1.159 albertel 1297: }
1.323 albertel 1298: } else {
1299: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1300: }
1.159 albertel 1301: return $result;
1.65 albertel 1302: }
1303:
1.512.2.24.2. (raeburn 1304:): sub needs_lti_passback {
1305:): my ($courseid,$symb,$map) = @_;
1306:): if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1307:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1308:): my ($cdom,$cnum) = ($1,$2);
1309:): my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1310:): if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1311:): if ($lti{$env{'request.lti.login'}}{'passback'}) {
1312:): my $itemnum = $env{'request.lti.login'};
1313:): my ($ltiscope,$ltiuri,$ltisymb) =
1314:): &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1315:): $cdom,$cnum,1);
1316:): my ($passback,$ltimap);
1317:): if ($ltiscope eq 'resource') {
1318:): if ($ltisymb eq $symb) {
1319:): $passback = 1;
1320:): }
1321:): } elsif ($ltiscope eq 'map') {
1322:): if ($ltiuri eq $map) {
1323:): $passback = 1;
1324:): $ltimap = $map;
1325:): }
1326:): } elsif ($ltiscope eq 'course') {
1327:): if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1328:): $passback = 1;
1329:): }
1330:): }
1331:): return ($passback,$ltiscope,$ltimap,$ltisymb,$itemnum,$lti{$itemnum});
1332:): }
1333:): }
1334:): }
1335:): }
1336:): return;
1337:): }
1338:):
1339:): sub needs_linkprot_passback {
1340:): my ($courseid,$symb,$map) = @_;
1341:): if (($env{'request.linkprotpbid'}) && ($env{'request.linkprotpburl'})) {
1342:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1343:): my ($cdom,$cnum) = ($1,$2);
1344:): my ($deeplink_symb,$deeplink_map,$deeplink,$passback);
1345:): $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
1346:): if ($deeplink_symb) {
1347:): if ($deeplink_symb =~ /\.(page|sequence)$/) {
1348:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[2]);
1349:): my $navmap = Apache::lonnavmaps::navmap->new();
1350:): if (ref($navmap)) {
1351:): $deeplink = $navmap->get_mapparam(undef,$deeplink_map,'0.deeplink');
1352:): }
1353:): } else {
1354:): $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$deeplink_symb);
1355:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[0]);
1356:): }
1357:): if (($deeplink ne '') && ($env{'request.linkprot'} ne '')) {
1358:): my ($itemid,$tinyurl) = split(/:/,$env{'request.linkprot'});
1359:): if ($itemid =~ /^(\d+)(c|d)$/) {
1360:): my ($itemnum,$itemtype) = ($1,$2);
1361:): my ($crsdef,$lti_in_use);
1362:): if ($itemtype eq 'c') {
1363:): $crsdef = 1;
1364:): my %crslti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
1365:): $lti_in_use = $crslti{$itemnum};
1366:): } else {
1367:): my %domlti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
1368:): $lti_in_use = $domlti{$itemnum};
1369:): }
1370:): my ($state,$others,$listed,$scope,$protect,$display,$target,$exit) = split(/,/,$deeplink);
1371:): my ($passback,$pbscope);
1372:): if ($scope eq 'res') {
1373:): if ($deeplink_symb eq $symb) {
1374:): $passback = 1;
1375:): $pbscope = 'resource';
1376:): }
1377:): } elsif ($scope eq 'map') {
1378:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1379:): $passback = 1;
1380:): $pbscope = 'nonrec';
1381:): }
1382:): } elsif ($scope eq 'rec') {
1383:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1384:): $passback = 1;
1385:): $pbscope = 'map';
1386:): } else {
1387:): my @recurseup = &Apache::lonnet::get_map_hierarchy($map,$env{'request.course.id'});
1388:): if (grep(/^\Q$deeplink_map\E$/,@recurseup)) {
1389:): $passback = 1;
1390:): $pbscope = 'map';
1391:): }
1392:): }
1393:): }
1394:): return ($passback,$pbscope,$deeplink_map,$deeplink_symb,$crsdef,$itemnum,$lti_in_use);
1395:): }
1396:): }
1397:): }
1398:): }
1399:): }
1400:): }
1401:):
1.435 jms 1402: =pod
1403:
1.512.2.9 raeburn 1404: =item check_correctness_changes()
1405:
1406: For all parts for which current results contain a solved status
1407: of "incorrect_attempted", check if there was a transaction in which
1408: solved was set to "correct_by_student" in the time since the last
1409: transaction (retrieved when &initialize_storage() was called i.e.,
1410: when &start_problem() was called), unless:
1411: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1412: (b) problemstatus is set to no or no_feedback_ever
1413: If such a transaction exists, and did not occur after "reset status"
1414: by a user with grading privileges, then the current transaction is an
1415: example of an out-of-order transaction (i.e., incorrect occurring after
1416: correct). Accordingly, the current transaction should be hidden.
1417:
1418: =cut
1419:
1420:
1421: sub check_correctness_changes {
1422: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1423: my @parts_to_hide;
1424: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1425: return @parts_to_hide;
1426: }
1427: if (@{$parts}) {
1428: my $usec;
1429: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1430: ($env{'request.course.id'} eq $courseid)) {
1431: $usec = $env{'request.course.sec'};
1432: } else {
1433: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1434: }
1435: foreach my $id (@{$parts}) {
1436: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1437: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1438: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1439: my $reset;
1440: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1441: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1442: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1443: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1444: $reset = 1;
1445: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1446: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1447: unless ($reset) {
1448: push(@parts_to_hide,$id);
1449: last;
1450: }
1451: }
1452: }
1453: }
1454: }
1455: return @parts_to_hide;
1456: }
1457:
1458: =pod
1459:
1.435 jms 1460: item store_aggregates()
1461:
1462: Sends hash of values to be incremented in nohist_resourcetracker.db
1463: for the course. Increments total number of attempts, unique students
1464: and corrects for each part for an instance of a problem, as appropriate.
1465:
1466: =cut
1467:
1.285 raeburn 1468: sub store_aggregates {
1469: my ($symb,$courseid) = @_;
1.479 raeburn 1470: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1471: my @parts;
1.288 albertel 1472: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1473: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1474: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1475: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1476: push(@parts, $1);
1.285 raeburn 1477: }
1478: }
1.286 albertel 1479: foreach my $part (@parts) {
1.470 raeburn 1480: if ($env{'request.role'} =~/^st/) {
1481: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1482: eq 'APPROX_ANS' ||
1483: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1484: eq 'EXACT_ANS') {
1485: $aggregate{$symb."\0".$part."\0correct"} = 1;
1486: }
1487: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1488: $aggregate{$symb."\0".$part."\0users"} = 1;
1489: } else {
1490: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1491: if ($last_reset) {
1492: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1493: $aggregate{$symb."\0".$part."\0users"} = 1;
1494: }
1495: }
1496: }
1497: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1498: }
1.470 raeburn 1499: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1500: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1501: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1502: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1503: $randtrycounter{$symb."\0".$part} = 1;
1504: } else {
1505: $anoncounter{$symb."\0".$part} = 1;
1506: }
1.470 raeburn 1507: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1508: if ($needsrelease) {
1509: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1510: if ($curr_required eq '') {
1.471 raeburn 1511: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1512: } else {
1513: my ($currmajor,$currminor) = split(/\./,$curr_required);
1514: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1515: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1516: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1517: }
1.292 raeburn 1518: }
1519: }
1.285 raeburn 1520: }
1521: }
1.512.2.9 raeburn 1522: if (keys(%aggregate) > 0) {
1.289 albertel 1523: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1524: $cdomain,$cname);
1525: }
1.472 raeburn 1526: if (keys(%anoncounter) > 0) {
1.481 raeburn 1527: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1528: $cdomain,$cname);
1.472 raeburn 1529: }
1.479 raeburn 1530: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1531: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1532: $cdomain,$cname);
1.479 raeburn 1533: }
1.292 raeburn 1534: }
1.289 albertel 1535:
1.65 albertel 1536: sub checkout_msg {
1.211 albertel 1537: my %lt=&Apache::lonlocal::texthash(
1538: 'resource'=>'The resource needs to be checked out',
1539: '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.',
1540: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1541: 'checkout'=>'Check out Exam for Viewing',
1542: 'checkout?'=>'Check out Exam?');
1.352 albertel 1543: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1544: return (<<ENDCHECKOUT);
1.211 albertel 1545: <h2>$lt{'resource'}</h2>
1546: <p>$lt{'id_expln'}</p>
1.449 bisitz 1547: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1548: <form name="checkout" method="post" action="$uri">
1.91 albertel 1549: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1550: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1551: </form>
1552: ENDCHECKOUT
1553: }
1554:
1.252 albertel 1555: sub firstaccess_msg {
1.253 albertel 1556: my ($time,$symb)=@_;
1.414 albertel 1557: my $result;
1558: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1559: if ($interval[1] eq 'map') {
1560: my ($map)=&Apache::lonnet::decode_symb($symb);
1561: my $foldertitle=&Apache::lonnet::gettitle($map);
1562:
1563: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1564: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1565: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1566: ,$foldertitle,$time)."</p>";
1.414 albertel 1567: } elsif ($interval[1] eq 'course') {
1568: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1569: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1570: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1571: ,$course,$time)."</p>";
1.414 albertel 1572: } else {
1573: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1574: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1575: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1576: ,$title,$time)."</p>";
1.414 albertel 1577: }
1.352 albertel 1578: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1579: my $buttontext = &mt('Show Resource');
1580: my $timertext = &mt('Start Timer?');
1.512.2.24 raeburn 1581: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1582: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1583: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1584: <input type="hidden" name="markaccess" value="yes" />
1.512.2.24 raeburn 1585: <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1586: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1587: </form>
1588: ENDCHECKOUT
1.414 albertel 1589: return $result;
1.252 albertel 1590: }
1591:
1.204 albertel 1592: sub init_problem_globals {
1593: my ($type)=@_;
1594: #initialize globals
1.308 foxr 1595: # For problems, we start out in part 0 (outside a <part> tag).
1596: # and part 0 is used to describe the main body of the <problem>
1597: #
1.204 albertel 1598: if ($type eq 'problem') {
1599: $Apache::inputtags::part='0';
1600: @Apache::inputtags::partlist=('0');
1.405 albertel 1601: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1602: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1603:
1.266 albertel 1604: } elsif ($type eq 'library') {
1.204 albertel 1605: $Apache::inputtags::part='';
1606: @Apache::inputtags::partlist=();
1.405 albertel 1607: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1608: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1609:
1.304 albertel 1610: } elsif ($type eq 'Task') {
1611: $Apache::inputtags::part='0';
1612: @Apache::inputtags::partlist=('0');
1.405 albertel 1613: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1614: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1615: }
1.477 www 1616: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1617: @Apache::inputtags::responselist = ();
1618: @Apache::inputtags::importlist = ();
1619: @Apache::inputtags::previous=();
1620: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1621: $Apache::inputtags::leniency='';
1.204 albertel 1622: $Apache::structuretags::printanswer='No';
1623: @Apache::structuretags::whileconds=();
1624: @Apache::structuretags::whilebody=();
1625: @Apache::structuretags::whileline=();
1626: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1627: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1628: undef($Apache::lonhomework::name);
1.358 albertel 1629: undef($Apache::lonhomework::default_type);
1630: undef($Apache::lonhomework::type);
1.204 albertel 1631: }
1632:
1633: sub reset_problem_globals {
1634: my ($type)=@_;
1635: undef(%Apache::lonhomework::history);
1636: undef(%Apache::lonhomework::results);
1637: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1638: undef($Apache::inputtags::leniency);
1.498 raeburn 1639: if ($type eq 'Task') {
1640: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1641: } elsif ($type eq 'problem') {
1642: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1643: }
1.208 albertel 1644: #don't undef this, lonhomework.pm takes care of this, we use this to
1645: #detect if we try to do 2 problems in one file
1646: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1647: undef($Apache::lonhomework::name);
1.358 albertel 1648: undef($Apache::lonhomework::default_type);
1649: undef($Apache::lonhomework::type);
1650: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1651: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1652: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1653: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1654: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1655: }
1656:
1.241 albertel 1657: sub set_problem_state {
1.240 albertel 1658: my ($part)=@_;
1.284 albertel 1659: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1660: $Apache::lonhomework::history{"resource.$part.solved"}=
1661: 'correct_by_student';
1662: }
1663: }
1664:
1.241 albertel 1665: sub get_problem_status {
1666: my ($part)=@_;
1.267 albertel 1667: my $problem_status;
1.284 albertel 1668: if ($env{'request.state'} eq 'construct' &&
1669: defined($env{'form.problemstatus'})) {
1670: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1671: } else {
1672: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1673: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1674: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1675: }
1676: return $problem_status;
1677: }
1678:
1.9 albertel 1679: sub start_problem {
1.326 albertel 1680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1681:
1.311 foxr 1682: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1683: if (!$Apache::lonxml::metamode) {
1684: &Apache::lonxml::startredirection();
1685: }
1.311 foxr 1686:
1.308 foxr 1687: # Problems don't nest and we don't allow more than one <problem> in
1688: # a .problem file.
1689: #
1.184 albertel 1690: if ( $Apache::inputtags::part ne '' ||
1691: $Apache::lonhomework::parsing_a_problem) {
1692: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1693: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1694: return '';
1695: }
1.184 albertel 1696:
1697: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1698: &init_problem_globals('problem');
1.166 albertel 1699:
1.284 albertel 1700: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1701: $Apache::lonhomework::scantronmode=1;
1702: }
1.161 albertel 1703:
1.159 albertel 1704: if ($target ne 'analyze') {
1.415 raeburn 1705: my $type = &Apache::lonnet::EXT('resource.0.type');
1706: $Apache::lonhomework::type=$type;
1.284 albertel 1707: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1708: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1709: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1710: }
1.332 albertel 1711: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1712: }
1.164 albertel 1713: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1714: my $uri=$env{'request.uri'};
1.159 albertel 1715: if ($uri=~/\.(\w+)$/) {
1716: $Apache::lonhomework::type=$1;
1717: &Apache::lonxml::debug("Using type of $1");
1718: } else {
1719: $Apache::lonhomework::type='problem';
1720: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1721: }
1.87 albertel 1722: }
1.301 albertel 1723: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1724:
1.363 albertel 1725: &initialize_storage();
1.389 albertel 1726: if ($target ne 'analyze'
1727: && $env{'request.state'} eq 'construct') {
1728: &set_problem_state('0');
1729: }
1730:
1.366 albertel 1731: if ($target eq 'web') {
1732: &Apache::lonxml::debug(" grading history ");
1733: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1734: }
1.363 albertel 1735:
1.159 albertel 1736: #added vars to the scripting enviroment
1.213 albertel 1737: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1738: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1739: &Apache::run::run($expression,$safeeval);
1.159 albertel 1740: my $status;
1741: my $accessmsg;
1.508 raeburn 1742: my $resource_due;
1.159 albertel 1743:
1.343 albertel 1744: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1745: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1746:
1747: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1748: $target eq 'tex') {
1749: if ($env{'form.markaccess'}) {
1750: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.24.2. (raeburn 1751:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1752:): my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.512.2.16 raeburn 1753: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1754: $firstaccres = $is_set;
1755: }
1.506 raeburn 1756: }
1757: }
1758:
1.354 albertel 1759: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1760: || $target eq 'edit') {
1.512.2.9 raeburn 1761: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1762: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1763: $name);
1.512.2.24.2. (raeburn 1764:): } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1765:): ($target eq 'answer')) {
1.512.2.9 raeburn 1766: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1767: if ($symb ne '') {
1768: my $navmap = Apache::lonnavmaps::navmap->new();
1769: if (ref($navmap)) {
1770: my $res = $navmap->getBySymb($symb);
1771: if (ref($res)) {
1772: $probpartlist = $res->parts();
1773: }
1.512.2.9 raeburn 1774: }
1775: }
1.350 albertel 1776: }
1777:
1.512.2.24.2. (raeburn 1778:): if (($target eq 'web') && ($env{'request.user_in_effect'})) {
1779:): &Apache::lonxml::get_all_text("/problem",$parser,$style);
1780:): return $result;
1781:): }
1782:):
1783:): if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1784:): $target eq 'tex') {
1785:):
1786:): my ($symb)= &Apache::lonnet::whichuser();
1787:): ($status,$accessmsg,$slot_name,$slot) =
1788:): &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1789:): push (@Apache::inputtags::status,$status);
1790:): }
1791:):
1.284 albertel 1792: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1793:
1.479 raeburn 1794: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1795: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1796: $target eq 'tex') {
1.479 raeburn 1797:
1.512.2.22 raeburn 1798: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1799: #handle rand seed in construction space
1.512.2.22 raeburn 1800: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1801: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1802: if ($partorder ne '') {
1803: @{$probpartlist} = split(/,/,$partorder);
1804: }
1805: }
1.512.2.9 raeburn 1806: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1807: if (($target eq 'grade') && &Apache::response::submitted()) {
1808: if ($Apache::lonhomework::type eq 'randomizetry') {
1809: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1810: } else {
1811: my @parts;
1812: if (ref($probpartlist) eq 'ARRAY') {
1813: @parts = @{$probpartlist};
1814: }
1815: unless (@parts) {
1816: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1817: }
1818: }
1819: }
1.479 raeburn 1820:
1.333 albertel 1821: if ($env{'request.state'} ne "construct" &&
1822: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1823: my $rndseedval = $rndseed;
1824: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1825: $rndseedval = $env{'form.rndseed'};
1826: }
1.162 albertel 1827: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1828: $rndseedval.'" />'.
1.462 raeburn 1829: '<input type="submit" name="resetdata"
1830: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1831: if (exists($env{'form.username'})) {
1832: $form_tag_start.=
1.164 albertel 1833: '<input type="hidden" name="username"
1.284 albertel 1834: value="'.$env{'form.username'}.'" />';
1.334 albertel 1835: }
1.462 raeburn 1836: if ($env{'request.role.adv'}) {
1837: $form_tag_start.= ' <label class="LC_nobreak">'
1838: .'<input type="checkbox" name="showallfoils"';
1839: if (defined($env{'form.showallfoils'})) {
1840: $form_tag_start.=' checked="checked"';
1841: }
1842: $form_tag_start.= ' /> '
1843: .&mt('Show All Foils')
1844: .'</label>';
1845: }
1.417 www 1846: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1847: $form_tag_start.=&practice_problem_header();
1.417 www 1848: }
1.462 raeburn 1849: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1850: }
1851: if (($env{'request.state'} ne "construct") &&
1852: ($Apache::lonhomework::type eq 'randomizetry') &&
1853: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1854: my @parts;
1855: if (ref($probpartlist) eq 'ARRAY') {
1856: @parts = @{$probpartlist};
1857: }
1858: unless (@parts) {
1859: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1860: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1861: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1862: }
1.479 raeburn 1863: }
1.324 albertel 1864:
1.159 albertel 1865: my $expression='$external::datestatus="'.$status.'";';
1866: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1867: &Apache::run::run($expression,$safeeval);
1868: &Apache::lonxml::debug("Got $status");
1.324 albertel 1869:
1.159 albertel 1870: if (( $status eq 'CLOSED' ) ||
1871: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1872: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1873: ( $status eq 'BANNED') ||
1.216 albertel 1874: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1875: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1876: ( $status eq 'NOTRESERVABLE') ||
1877: ( $status eq 'RESERVABLE') ||
1878: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1879: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1880: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1881: $style);
1.159 albertel 1882: if ( $target eq "web" ) {
1.343 albertel 1883: my $msg;
1.159 albertel 1884: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1885: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1886: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1887: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1888: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1889: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1890: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1891: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1892: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1893: }
1.216 albertel 1894: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1895: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1896: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1897: $msg.=&checkout_msg();
1.252 albertel 1898: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1899: if ($firstaccres) {
1900: $msg .= '<p class="LC_error">'.
1901: &mt('A problem occurred when trying to start the timer.').'</p>';
1902: }
1.253 albertel 1903: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1904: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1905: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1906: } elsif ($status eq 'RESERVABLE') {
1907: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1908: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1909: '<br />'.
1910: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1911: } elsif ($status eq 'RESERVABLE_LATER') {
1912: $msg.=&mt('Window to make a reservation will open [_1].',
1913: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1914: } elsif ($status eq 'NOTRESERVABLE') {
1915: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1916: }
1917: $result.=$msg.'<br />';
1918: } elsif ($target eq 'tex') {
1.332 albertel 1919: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1920: : '\begin{minipage}{\textwidth}';
1.443 foxr 1921: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1922: $startminipage.'\vskip 0 mm';
1.159 albertel 1923: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1924: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1925: } else {
1.211 albertel 1926: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1927: }
1928: }
1.324 albertel 1929: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1930: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1931: $style);
1.324 albertel 1932: if ($target eq 'web') {
1.375 albertel 1933: $result .=
1934: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1935: } elsif ($target eq 'grade') {
1936: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1937: 'problem');
1938: }
1.159 albertel 1939: } elsif ($target eq 'web') {
1.508 raeburn 1940: if ($status eq 'CAN_ANSWER') {
1941: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1942: if ($slot_name ne '') {
1943: my $checked_in =
1944: $Apache::lonhomework::history{'resource.0.checkedin'};
1945: if ($checked_in eq '') {
1946: # unproctored slot access, self checkin
1947: &Apache::bridgetask::check_in('problem',undef,undef,
1948: $slot_name);
1949: $checked_in =
1950: $Apache::lonhomework::results{"resource.0.checkedin"};
1951: }
1952: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1953: if ($slot->{'starttime'} < time()) {
1954: if (!$resource_due) {
1955: $resource_due = $slot->{'endtime'};
1956: } elsif ($slot->{'endtime'} < $resource_due) {
1957: $resource_due = $slot->{'endtime'};
1958: }
1959: }
1960: }
1961: }
1962: if ($resource_due) {
1963: my $time_left = $resource_due - time();
1964: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1965: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1966: }
1967: }
1968: }
1.368 albertel 1969: $result.="\n $form_tag_start \t".
1.227 albertel 1970: '<input type="hidden" name="submitted" value="yes" />';
1971: # create a page header and exit
1.284 albertel 1972: if ($env{'request.state'} eq "construct") {
1973: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1974: if ($Apache::lonhomework::type eq 'practice') {
1975: $result.= '<input type="submit" name="resetdata" '.
1976: 'value="'.&mt('New Problem Variation').'" />'.
1977: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1978: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1979: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1980: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1981: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1982: }
1.227 albertel 1983: }
1984: # if we are viewing someone else preserve that info
1.284 albertel 1985: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1986: foreach my $field ('symb','courseid','domain','username') {
1987: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1988: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1989: }
1.479 raeburn 1990: foreach my $field ('trial','questiontype') {
1991: if ($env{"form.grade_$field"} ne '') {
1992: $result .= '<input type="hidden" name="grade_'.$field.
1993: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1994: }
1995: }
1.159 albertel 1996: }
1.490 raeburn 1997: if ($env{'form.grade_imsexport'}) {
1998: $result = '';
1999: }
1.159 albertel 2000: } elsif ($target eq 'tex') {
1.319 foxr 2001: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2002: $result .= &select_metadata_hyphenation();
2003:
1.319 foxr 2004:
1.99 sakharuk 2005: }
1.159 albertel 2006: } elsif ($target eq 'edit') {
1.343 albertel 2007: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2008: $Apache::lonxml::warnings_error_header=
2009: &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 2010: my $temp=&Apache::edit::insertlist($target,$token);
2011: $result.=$temp;
2012: } elsif ($target eq 'modified') {
2013: $result=$token->[4];
2014: } else {
2015: # page_start returned a starting result, delete it if we don't need it
2016: $result = '';
1.99 sakharuk 2017: }
1.159 albertel 2018: return $result;
1.9 albertel 2019: }
2020:
2021: sub end_problem {
1.159 albertel 2022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2023: my $result;
1.310 foxr 2024:
1.321 albertel 2025: if (!$Apache::lonxml::metamode) {
2026: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2027: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2028: }
1.319 foxr 2029:
2030: if ($target eq 'tex') {
1.321 albertel 2031: # Figure out the front matter and replace the
2032: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2033: # this in end_problem because whether or not we display due
2034: # dates depends on whether due dates have already been
2035: # displayed in the problem parts.
2036:
1.319 foxr 2037: my $frontmatter = '';
2038: my $startminipage = '';
2039: if (not $env{'form.problem_split'}=~/yes/) {
2040: $startminipage = '\begin{minipage}{\textwidth}';
2041: }
2042: my $id = $Apache::inputtags::part;
2043: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2044: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2045: my @packages = split(/,/,$packages);
1.319 foxr 2046: my $allow_print_points = 0;
2047: foreach my $partial_key (@packages) {
2048: if ($partial_key=~m/^part_0$/) {
2049: $allow_print_points=1;
2050: }
2051: }
2052: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2053: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2054: if (lc($env{'course.'.$env{'request.course.id'}.
2055: '.disableexampointprint'}) eq 'yes') {
2056: $allow_print_points=0;
2057: }
2058: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2059: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.500 foxr 2060: &clear_required_languages();
1.319 foxr 2061: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2062: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2063:
2064: # Figure out what the due date is and if we need to print
2065: # it in the problem header. We have been logging the
2066: # last due date written to file.
2067:
2068: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2069: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2070: my $duedate_text = &mt('Due date: [_1]'
2071: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2072: my $temp_file;
2073: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2074:
2075: # Figure out what the last printed due date is or set it
2076: # to the epoch if no duedates have been printed.
2077:
2078: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2079: if (-e $filename) {
2080: $temp_file = Apache::File->new($filename);
2081: my @due_file = <$temp_file>;
2082: $due_file_content = $due_file[$#due_file];
2083: chomp $due_file_content;
2084: }
2085:
2086: # We display the due date iff it is not the same as the last
2087: # duedate in problem header ($due_file_content), and
2088: # none of our parts displayed a duedate.
2089: #
2090: my $parts_with_displayduedate;
2091: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2092: $parts_with_displayduedate =
2093: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2094: } else {
2095: $parts_with_displayduedate = 0;
2096: }
2097: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2098: $temp_file = Apache::File->new('>'.$filename);
2099: print $temp_file "$duetime\n";
2100: if (not $env{'request.symb'} =~ m/\.page_/) {
2101: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2102: $frontmatter .= $begin_doc.
1.448 bisitz 2103: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2104: } else {
2105: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2106: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2107: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2108: }
1.319 foxr 2109: }
2110: } else {
1.448 bisitz 2111: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2112: }
2113: } else {
2114: if (not $env{'request.symb'} =~ m/\.page_/) {
2115: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2116: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2117: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2118: }
1.319 foxr 2119: } else {
1.381 albertel 2120: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2121: }
2122: }
2123: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1.512.2.24.2. (raeburn 2124:): } elsif ($target eq 'web') {
2125:): if ($env{'request.user_in_effect'}) {
2126:): &reset_problem_globals('problem');
2127:): $result .= &Apache::lonhtmlcommon::set_compute_end_time();
2128:): return $result;
2129:): }
1.319 foxr 2130: }
2131:
1.159 albertel 2132: my $status=$Apache::inputtags::status['-1'];
2133: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2134: $target eq 'tex') {
1.249 albertel 2135: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2136: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2137: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2138: &Apache::inputtags::grade;
1.324 albertel 2139: } elsif ($status eq 'NEEDS_CHECKIN') {
2140: # no need to grade, and don't want to hide data
1.249 albertel 2141: } else {
2142: # move any submission data to .hidden
2143: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2144: }
1.159 albertel 2145: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2146: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2147: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2148: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2149: # if part is zero, no <part>s existed, so we need show the current
2150: # grading status
2151: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2152: $result.= $gradestatus;
2153: }
2154: if (
1.284 albertel 2155: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2156: ($target eq 'answer') || ($target eq 'tex')
2157: ) {
1.490 raeburn 2158: if (($target ne 'tex') &&
2159: ($env{'form.answer_output_mode'} ne 'tex') &&
2160: (!$env{'form.grade_imsexport'})) {
1.254 www 2161: $result.="</form>";
1.159 albertel 2162: }
2163: if ($target eq 'web') {
1.507 raeburn 2164: #
2165: # Closing </body></html> not added by end_page().
2166: # Added separately at end of this routine, after added
2167: # <script></script> so document will be valid xhtml.
2168: #
2169: $result.= &Apache::loncommon::end_page({'discussion' => 1,
2170: 'notbody' => 1});
1.159 albertel 2171: } elsif ($target eq 'tex') {
1.178 sakharuk 2172: my $endminipage = '';
1.284 albertel 2173: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2174: $endminipage = '\end{minipage}';
2175: }
1.284 albertel 2176: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2177: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2178: } else {
1.262 sakharuk 2179: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2180: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2181: $result .= $endminipage.'\end{document} ';
2182: } else {
1.382 albertel 2183: $result .= $endminipage;
1.262 sakharuk 2184: }
1.159 albertel 2185: }
2186: }
2187: }
1.476 www 2188: if ($target eq 'web') {
1.512.2.21 raeburn 2189: $result.=&Apache::functionplotresponse::init_script();
2190: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2191: my ($symb) = &Apache::lonnet::whichuser();
2192: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2193: ($status eq 'CAN_ANSWER')) {
2194: unless (@Apache::inputtags::partlist > 1) {
2195: $result.= <<"ENDJS";
2196: <script type="text/javascript">
2197: // <![CDATA[
2198: \$(document).ready(function() {
2199: \$('#LC_randomizetry_header').css('display','block');
2200: });
2201: // ]]>
2202: </script>
2203: ENDJS
2204: }
2205: }
2206: }
1.476 www 2207: }
1.159 albertel 2208: if ($target eq 'grade') {
2209: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2210: &finalize_storage();
2211: }
1.284 albertel 2212: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2213: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2214: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2215: # normally we get it from above, but in CSTR
1.172 albertel 2216: # we always show answer mode too.
1.159 albertel 2217: }
2218: } elsif ($target eq 'meta') {
2219: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2220: @Apache::inputtags::response=();
1.159 albertel 2221: $result=&Apache::response::mandatory_part_meta;
2222: }
1.215 albertel 2223: $result.=&Apache::response::meta_part_order();
1.258 albertel 2224: $result.=&Apache::response::meta_response_order();
1.159 albertel 2225: } elsif ($target eq 'edit') {
2226: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2227: $result .= &problem_edit_footer();
1.320 albertel 2228: } elsif ($target eq 'modified') {
2229: $result .= $token->[2];
1.159 albertel 2230: }
1.155 albertel 2231:
1.284 albertel 2232: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2233: &Apache::inputtags::check_for_duplicate_ids();
2234: }
1.204 albertel 2235:
2236: &reset_problem_globals('problem');
1.159 albertel 2237:
1.502 foxr 2238: #
2239: # This shouild be just above the return so that the
2240: # time put in the javascript is as late as possible in the
2241: # computation:
2242: #
2243: if ($target eq 'web') {
1.512.2.24.2. (raeburn 2244:): $result .= &Apache::lonhtmlcommon::dash_to_minus_js().
2245:): &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2246: #
2247: # Closing tags delayed so any <script></script> tags
2248: # not in head can appear inside body, for valid xhtml.
2249: #
2250: $result .= "</body>\n</html>";
1.502 foxr 2251: }
1.159 albertel 2252: return $result;
1.48 albertel 2253: }
2254:
1.108 albertel 2255:
1.48 albertel 2256: sub start_library {
1.159 albertel 2257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2258: my ($result,$form_tag_start);
1.371 albertel 2259: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2260: &init_problem_globals('library');
2261: $Apache::lonhomework::type='problem';
2262: }
1.159 albertel 2263: if ($target eq 'edit') {
1.343 albertel 2264: ($result,$form_tag_start)=
2265: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2266: 'Edit');
2267: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2268: my $temp=&Apache::edit::insertlist($target,$token);
2269: $result.=$temp;
2270: } elsif ($target eq 'modified') {
2271: $result=$token->[4];
1.340 albertel 2272: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2273: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2274: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2275: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2276: ($result,$form_tag_start)=
2277: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2278: $name);
1.479 raeburn 2279: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2280: $result.=" \n $form_tag_start".
1.159 albertel 2281: '<input type="hidden" name="submitted" value="yes" />';
2282: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2283: if ($Apache::lonhomework::type eq 'practice') {
2284: $result.= '<input type="submit" name="resetdata" '.
2285: 'value="'.&mt('New Problem Variation').'" />'.
2286: &practice_problem_header().'<hr />';
2287: }
1.159 albertel 2288: }
2289: return $result;
1.48 albertel 2290: }
2291:
2292: sub end_library {
1.159 albertel 2293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2294: my $result='';
2295: if ($target eq 'edit') {
2296: $result=&problem_edit_footer();
1.371 albertel 2297: } elsif ($target eq 'web'
2298: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2299: && $env{'request.state'} eq "construct") {
1.349 albertel 2300: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2301: } elsif ($target eq 'meta') {
2302: $result.=&Apache::response::meta_response_order();
1.159 albertel 2303: }
1.371 albertel 2304: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2305: &reset_problem_globals('library');
2306: }
1.159 albertel 2307: return $result;
1.197 www 2308: }
2309:
2310: sub start_definetag {
1.326 albertel 2311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2312:
2313: my $result;
2314:
2315: my $name = $token->[2]->{'name'};
1.326 albertel 2316: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2317: if ($target eq 'web') {
2318: if ($name=~/^\//) {
2319: $result=
2320: '<br /><table class="LC_sty_end"><tr><th>'.
2321: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2322: } else {
2323: $result=
2324: '<br /><table class="LC_sty_begin"><tr><th>'.
2325: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2326: }
2327: $skip = &HTML::Entities::encode($skip, '<>&"');
2328: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2329: }
2330: return $result;
2331: }
2332:
2333: sub end_definetag {
2334: return '';
1.1 albertel 2335: }
2336:
2337: sub start_block {
1.201 albertel 2338: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2339:
2340: my $result;
1.1 albertel 2341:
1.339 albertel 2342: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2343: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2344: my $code = $token->[2]->{'condition'};
1.385 albertel 2345: if (defined($code) && $code ne '') {
1.137 albertel 2346: if (!$Apache::lonxml::default_homework_loaded) {
2347: &Apache::lonxml::default_homework_load($safeeval);
2348: }
1.131 albertel 2349: $result = &Apache::run::run($code,$safeeval);
2350: &Apache::lonxml::debug("block :$code: returned :$result:");
2351: } else {
2352: $result='1';
2353: }
2354: if ( ! $result ) {
1.201 albertel 2355: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2356: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2357: }
2358: $result='';
2359: } elsif ($target eq 'edit') {
2360: $result .=&Apache::edit::tag_start($target,$token);
2361: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2362: $token,40);
2363: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2364: } elsif ($target eq 'modified') {
2365: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2366: $safeeval,'condition');
2367: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2368: }
1.131 albertel 2369: return $result;
1.1 albertel 2370: }
2371:
2372: sub end_block {
1.167 www 2373: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2374: my $result;
2375: if ($target eq "edit") {
2376: $result.= &Apache::edit::tag_end($target,$token,'');
2377: }
2378: return $result;
2379: }
1.500 foxr 2380: #
2381: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2382: # ...
2383: # </languageblock>
2384: #
2385: # This declares the intent to provide content that can be rendered in the
2386: # set of languages in the include specificatino but not in the exclude
2387: # specification. If a currently preferred language is in the include list
2388: # the content in the <languageblock>...</languageblock> is rendered
2389: # If the currently preferred language is in the exclude list,
2390: # the content in the <languageblock>..></languageblock is not rendered.
2391: #
2392: # Pathalogical case handling:
2393: # - Include specified, without the preferred language but exclude specified
2394: # also without the preferred langauge results in rendering the block.
2395: # - Exclude specified without include and excluden not containing a
2396: # preferred language renders the block.
2397: # - Include and exclude both specifying the preferred language does not
2398: # render the block.
2399: # - If neither include/exclude is specified, the block gets rendered.
2400: #
2401: # This tag has no effect when target is in {edit, modified}
2402: #
1.167 www 2403: sub start_languageblock {
1.201 albertel 2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2405:
1.500 foxr 2406: my $result = '';
1.167 www 2407:
1.339 albertel 2408: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2409: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2410: my $include = $token->[2]->{'include'};
2411: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2412: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2413:
2414: # This should not even happen, since we should at least have the server language
2415:
2416: if (!$preferred_languages[0]) {
2417: $preferred_languages[0]='en';
2418: }
2419:
2420: # Now loop over all languages in order of preference
2421:
2422: my $render;
1.398 www 2423: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2424:
2425: # If neither include/nor exlude is present the block is going
2426: # to get rendered.
2427:
1.399 www 2428: my $found=0;
1.500 foxr 2429: $render=1;
2430:
2431: # If include is specified, don't render the block
2432: # unless the preferred language is included in the set.
2433:
1.398 www 2434: if ($include) {
1.500 foxr 2435: $render=0;
1.398 www 2436: foreach my $included_language (split(/\,/,$include)) {
2437: if ($included_language eq $preferred_language) {
1.500 foxr 2438: $render=1;
1.399 www 2439: $found=1;
1.500 foxr 2440: last; # Only need to find the first.
1.398 www 2441: }
2442: }
2443: }
1.500 foxr 2444: # Do we have an exclude argument?
2445: # If so, and one of the languages matches a preferred language
2446: # inhibit rendering the block. Note that in the pathalogical case the
2447: # author has specified a preferred language in both the include and exclude
2448: # attribte exclude is preferred.
2449:
1.398 www 2450: if ($exclude) {
1.500 foxr 2451: $render=1;
1.398 www 2452: foreach my $excluded_language (split(/\,/,$exclude)) {
2453: if ($excluded_language eq $preferred_language) {
1.500 foxr 2454: $render=0;
1.399 www 2455: $found=1;
1.500 foxr 2456: last; # Only need to find the first.
1.398 www 2457: }
2458: }
2459: }
1.500 foxr 2460: if ($found) {
2461: last; # Done on any match of include or exclude.
2462: }
1.398 www 2463: }
1.500 foxr 2464: # If $render not true skip the entire block until </languageblock>
2465: #
2466:
2467: if ( ! $render ) {
1.201 albertel 2468: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2469: $style);
2470: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2471: }
1.500 foxr 2472: # If $render is true, we've not skipped the contents of the <languageglock>
2473: # and the normal loncapa processing flow will render it as a matter of course.
2474:
1.167 www 2475: } elsif ($target eq 'edit') {
2476: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2477: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2478: $token,40);
1.211 albertel 2479: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2480: $token,40);
2481: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2482: } elsif ($target eq 'modified') {
2483: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2484: $safeeval,'include',
2485: 'exclude');
1.167 www 2486: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2487: }
2488: return $result;
2489: }
2490:
2491: sub end_languageblock {
1.170 www 2492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2493: my $result;
1.201 albertel 2494: if ($target eq "edit") {
1.170 www 2495: $result.= &Apache::edit::tag_end($target,$token,'');
2496: }
2497: return $result;
2498: }
1.500 foxr 2499: # languagblock specific tags:
2500: {
2501: # For chunks of a resource that has translations, this hash contains
2502: # the translations available indexed by language name.
2503: #
2504:
2505: my %available_texts;
1.170 www 2506:
1.500 foxr 2507: # <translated> starts a block of a resource that has multiple translations.
2508: # See the <lang> tag as well.
2509: # When </translated> is encountered if there is a translation for the
2510: # currently preferred language, that is rendered inthe web/tex/webgrade
2511: # targets. Otherwise, the default text is rendered.
2512: #
2513: # Note that <lang> is only registered for the duration of the
2514: # <translated>...</translated> block
2515: #
2516: # Pathalogical case handling:
2517: # - If there is no <lang> that specifies a 'default' and there is no
2518: # translation that matches a preferred language, nothing is rendered.
2519: # - Nested <translated>...</translated> might be linguistically supported by
2520: # XML due to the stack nature of tag registration(?) however the rendered
2521: # output will be incorrect because there is only one %available_texts
2522: # has and end_translated clears it.
2523: # - Material outside of a <lang>...</lang> block within the
2524: # <translated>...<translated> block won't render either e.g.:
2525: # <translated>
2526: # The following will be in your preferred langauge:
2527: # <lang which='en'>
2528: # This section in english
2529: # </lang>
2530: # <lang which='sgeiso'>
2531: # Hier es ist auf Deutsch.
2532: # </lang>
2533: # <lang which='sfriso'>
2534: # En Francais
2535: # </lang>
2536: # </translated>
2537: #
2538: # The introductory text prior to the first <lang> tag is not rendered.
2539: #
1.397 albertel 2540: sub start_translated {
2541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2542: &Apache::lonxml::register('Apache::structuretags',('lang'));
2543: undef(%available_texts);
2544: }
2545:
2546: sub end_translated {
2547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2548: my $result;
2549: #show the translation on viewable targets
2550: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2551: # or non-viewable targets, if it's embedded in something that
2552: # wants the output
2553: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2554: && &Apache::lonxml::in_redirection() ) ) {
2555: my @possibilities = keys(%available_texts);
2556: my $which =
2557: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2558: if ($target eq 'tex') {
2559: $result = &select_hyphenation($which);
2560: }
2561: $result .= $available_texts{$which};
2562: if ($target eq 'tex') {
2563: $result .= &select_metadata_hyphenation(); # Restore original language.
2564: }
1.397 albertel 2565: }
2566: undef(%available_texts);
2567: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2568: return $result;
2569: }
2570:
1.500 foxr 2571: # <lang [which='language-name'] [other='lang1,lang2...']>
2572: # Specifies that the block contained within it is a translation
2573: # for a specific language specified by the 'which' attribute. The
2574: # 'other' attribute can be used by itself or in conjunction with
2575: # which to specify this tag _may_ be used as a translation for some
2576: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2577: # specifying that the block provides a translation for US (primary)
2578: # Canadian, Australian and UK Englush.
2579: #
2580: # Comment: this seems a bit silly why not just support a list of languages
2581: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2582: #
2583: # Effect:
2584: # The material within the <lang>..</lang> block is stored in the
2585: # specified set of $available_texts hash entries, the appropriate one
2586: # is selected at </translated> time.
2587: #
2588: # Pathalogical case handling:
2589: # If a language occurs multiple times within a <translated> block,
2590: # only the last one is rendered e.g.:
2591: #
2592: # <translated>
2593: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2594: # Red green color blindness is quite common affecting about 7.8% of
2595: # the male population, but onloy about .65% of the female population.
2596: # </lang>
2597: # Red green colour blindness is quite common affecting about 7.8% of
2598: # the male population, but onloy about .65% of the female population.
2599: # <lang which='seniso', other='senisoCA,senisoAU'>
2600: # </translated>
2601: #
2602: # renders the correct spelling of color (colour) for people who have specified
2603: # a preferred language that is one of the British Commonwealth languages
2604: # even though those are also listed as valid selections for the US english
2605: # <lang> block.
2606: #
1.397 albertel 2607: sub start_lang {
2608: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2609: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2610: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2611: &Apache::lonxml::startredirection();
2612: }
2613: return '';
2614: }
2615:
2616: sub end_lang {
2617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2618: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2619: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2620: my $result = &Apache::lonxml::endredirection();
2621: my $which = &Apache::lonxml::get_param('which',$parstack,
2622: $safeeval);
1.431 raeburn 2623: if ($which=~/\w/) {
2624: $available_texts{$which} = $result;
2625: }
2626: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2627: $safeeval);
2628: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2629: if ($language=~/\w/) {
2630: $available_texts{$language} = $result;
2631: }
1.427 bisitz 2632: }
2633:
1.397 albertel 2634: }
2635: return '';
2636: }
1.500 foxr 2637: } # end langauge block specific tags.
2638:
1.397 albertel 2639:
1.170 www 2640: sub start_instructorcomment {
1.201 albertel 2641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2642:
2643: my $result;
2644:
1.339 albertel 2645: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2646: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2647: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2648: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2649: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2650: $parser,$style);
1.170 www 2651: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2652: }
2653: $result='';
2654: } elsif ($target eq 'edit') {
2655: $result .=&Apache::edit::tag_start($target,$token);
2656: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2657: }
2658: return $result;
2659: }
2660:
2661: sub end_instructorcomment {
1.159 albertel 2662: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2663: my $result;
2664: if ($target eq "edit") {
2665: $result.= &Apache::edit::tag_end($target,$token,'');
2666: }
2667: return $result;
1.4 tsai 2668: }
2669:
2670: sub start_while {
1.326 albertel 2671: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2672:
1.160 albertel 2673: my $result;
1.339 albertel 2674: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2675: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2676: my $code = $token->[2]->{'condition'};
1.4 tsai 2677:
1.160 albertel 2678: push( @Apache::structuretags::whileconds, $code);
2679: if (!$Apache::lonxml::default_homework_loaded) {
2680: &Apache::lonxml::default_homework_load($safeeval);
2681: }
2682: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2683: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2684: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2685: push( @Apache::structuretags::whileline, $token->[5]);
2686: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2687: if ( $result ) {
2688: &Apache::lonxml::newparser($parser,\$bodytext);
2689: }
2690: } elsif ($target eq 'edit') {
2691: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2692: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2693: $token,40);
2694: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2695: } elsif ($target eq 'modified') {
2696: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2697: $safeeval,'condition');
2698: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2699: }
1.160 albertel 2700: return $result;
1.4 tsai 2701: }
2702:
2703: sub end_while {
1.159 albertel 2704: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2705: my $result;
2706:
1.339 albertel 2707: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2708: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2709: my $code = pop(@Apache::structuretags::whileconds);
2710: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2711: my $line = pop(@Apache::structuretags::whileline);
2712: my $return = &Apache::run::run($code,$safeeval);
2713: my $starttime=time;
2714: my $error=0;
2715: while ($return) {
2716: if (time-$starttime >
2717: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2718: $return = 0; $error=1; next;
1.161 albertel 2719: }
2720: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2721: if ($target eq 'grade' || $target eq 'answer' ||
2722: $target eq 'analyze') {
2723: # grade/answer/analyze should produce no output but if we
2724: # are redirecting, the redirecter should know what to do
2725: # with the output
2726: if (!$Apache::lonxml::redirection) { undef($result); }
2727: }
1.161 albertel 2728: $return = &Apache::run::run($code,$safeeval);
2729: }
1.512.2.5 raeburn 2730: if ($error) {
2731: &Apache::lonxml::error(
2732: '<pre>'
2733: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2734: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2735: .&mt('This occurred while running <while> on line [_1].',
2736: $line)
2737: .'</pre>');
2738: }
1.160 albertel 2739: } elsif ($target eq "edit") {
2740: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2741: }
1.160 albertel 2742: return $result;
1.1 albertel 2743: }
1.6 tsai 2744:
1.160 albertel 2745: # <randomlist show="1">
1.6 tsai 2746: # <tag1>..</tag1>
2747: # <tag2>..</tag2>
2748: # <tag3>..</tag3>
1.160 albertel 2749: # ...
1.6 tsai 2750: # </randomlist>
2751: sub start_randomlist {
1.326 albertel 2752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2753: my $result;
1.339 albertel 2754: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2755: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2756: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2757: my $b_parser= HTML::LCParser->new(\$body);
2758: $b_parser->xml_mode(1);
2759: $b_parser->marked_sections(1);
1.159 albertel 2760: my $b_tok;
2761: my @randomlist;
2762: my $list_item;
2763: while($b_tok = $b_parser->get_token() ) {
2764: if($b_tok->[0] eq 'S') { # start tag
2765: # get content of the tag until matching end tag
2766: # get all text upto the matching tag
2767: # and push the content into @randomlist
2768: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2769: $b_parser);
2770: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2771: push(@randomlist,$list_item);
2772: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2773: # $list_item</b>";
2774: }
2775: if($b_tok->[0] eq 'T') { # text
2776: # what to do with text in between tags?
2777: # print "<b>TEXT $b_tok->[1]</b><br />";
2778: }
2779: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2780: # print "<b>END-TAG $b_tok->[1]</b><br />";
2781: # }
2782: }
1.303 albertel 2783: if (@randomlist) {
2784: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2785: if ($env{'form.code_for_randomlist'}) {
2786: &Apache::structuretags::shuffle(\@idx_arr,$target);
2787: undef($env{'form.code_for_randomlist'});
2788: } else {
2789: &Apache::structuretags::shuffle(\@idx_arr);
2790: }
1.303 albertel 2791: my $bodytext = '';
2792: my $show=$#randomlist;
2793: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2794: $showarg--;
2795: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2796: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2797: my @currlist;
2798: my $part = $Apache::inputtags::part;
2799: if ($part ne '') {
2800: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2801: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2802: if (!(grep(/^\Q$part\E$/,@currlist))) {
2803: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2804: }
2805: } else {
2806: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2807: }
2808: }
2809: }
1.512.2.9 raeburn 2810: for my $i (0 .. $show) {
2811: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2812: }
2813: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2814: }
2815: } elsif ($target eq 'edit' ) {
2816: $result .=&Apache::edit::tag_start($target,$token);
2817: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2818: $token,5);
2819: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2820: } elsif ($target eq 'modified' ) {
2821: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2822: $safeeval,'show');
2823: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2824: }
2825: return $result;
1.7 tsai 2826: }
2827:
2828: sub shuffle {
1.512.2.14 raeburn 2829: my ($a,$target) = @_;
1.7 tsai 2830: my $i;
1.303 albertel 2831: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2832: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2833: for($i=@$a;--$i;) {
2834: my $j=int(&Math::Random::random_uniform() * ($i+1));
2835: next if $i == $j;
2836: @$a[$i,$j] = @$a[$j,$i];
2837: }
1.251 albertel 2838: &Apache::response::poprandomnumber();
1.7 tsai 2839: }
1.6 tsai 2840: }
2841:
2842: sub end_randomlist {
1.159 albertel 2843: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2844: my $result;
2845: if ($target eq 'edit' ) {
2846: $result=&Apache::edit::tag_end($target,$token,
2847: 'End Randomly Parsed Block');
2848: }
2849: return $result;
1.6 tsai 2850: }
2851:
1.283 albertel 2852: sub ordered_show_check {
2853: my $last_part=$Apache::inputtags::partlist[-2];
2854: my $in_order=
2855: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2856: my $in_order_show=1;
2857: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2858: $in_order_show=&Apache::response::check_status($last_part);
2859: }
2860: return $in_order_show;
2861: }
2862:
1.469 www 2863:
2864: sub start_startpartmarker {
2865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2866: my $result='';
2867: if ($target eq 'edit') {
2868: $result=&Apache::edit::tag_start($target,$token);
2869: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2870: $result.=&Apache::edit::end_table();
2871:
2872: }
2873: return $result;
2874: }
2875:
2876: sub end_startpartmarker {
2877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2878: my @result;
2879: if ($target eq 'edit') { $result[1]='no'; }
2880: return @result;
2881: }
2882:
2883: sub start_endpartmarker {
2884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2885: my $result='';
2886: if ($target eq 'edit') {
2887: $result=&Apache::edit::tag_start($target,$token);
2888: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2889: $result.=&Apache::edit::end_table();
2890:
2891: }
2892: return $result;
2893: }
2894:
2895: sub end_endpartmarker {
2896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2897: my @result;
2898: if ($target eq 'edit') { $result[1]='no'; }
2899: return @result;
2900: }
2901:
2902:
2903:
2904:
2905:
1.11 albertel 2906: sub start_part {
1.326 albertel 2907: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2908: if (!$Apache::lonxml::metamode) {
2909: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2910: # duedates.
2911: }
1.159 albertel 2912: my $result='';
1.386 albertel 2913: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2914: $Apache::inputtags::part=$id;
1.177 albertel 2915: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2916: $Apache::inputtags::leniency='';
1.177 albertel 2917: @Apache::inputtags::response=();
1.159 albertel 2918: @Apache::inputtags::previous=();
2919: @Apache::inputtags::previous_version=();
1.405 albertel 2920: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2921: &Apache::response::reset_params();
2922:
1.159 albertel 2923: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2924: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2925: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2926: if ($Apache::lonhomework::type eq 'randomizetry') {
2927: my $rndseed=&setup_rndseed($safeeval,$target);
2928: if (($target eq 'grade') && &Apache::response::submitted()) {
2929: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2930: }
2931: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2932: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2933: }
1.283 albertel 2934: my $in_order_show=&ordered_show_check();
1.214 albertel 2935: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2936: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2937: &Apache::run::run($expression,$safeeval);
1.159 albertel 2938:
2939: if ($target eq 'meta') {
1.224 www 2940: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2941: return &Apache::response::mandatory_part_meta.
2942: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2943: } elsif ($target eq 'web' || $target eq 'grade' ||
2944: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2945: if ($hidden || !$in_order_show) {
1.326 albertel 2946: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2947: } else {
2948: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2949: push (@Apache::inputtags::status,$status);
2950: my $expression='$external::datestatus="'.$status.'";';
2951: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2952: &Apache::run::run($expression,$safeeval);
1.284 albertel 2953: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2954: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2955: }
1.216 albertel 2956: if (( $status eq 'CLOSED' ) ||
2957: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2958: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2959: ( $status eq 'BANNED') ||
2960: ( $status eq 'UNAVAILABLE') ||
2961: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2962: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2963: $style);
1.159 albertel 2964: if ( $target eq "web" ) {
1.211 albertel 2965: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2966: } elsif ( $target eq 'tex' ) {
1.284 albertel 2967: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2968: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2969: } else {
1.211 albertel 2970: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2971: }
1.159 albertel 2972: }
2973: } else {
2974: if ($target eq 'tex') {
1.284 albertel 2975: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2976: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2977: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2978: } else {
2979: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2980: }
1.195 sakharuk 2981: }
1.159 albertel 2982: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2983: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2984: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2985: my $allow_print_points = 0;
2986: foreach my $partial_key (@allkeys) {
1.230 albertel 2987: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2988: if ($1 ne '0') {$allow_print_points=1;}
2989: }
2990: }
1.275 albertel 2991: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2992: if (defined($maxtries) && $maxtries < 0) {
2993: $allow_print_points=0;
2994: }
1.302 albertel 2995: if (lc($env{'course.'.$env{'request.course.id'}.
2996: '.disableexampointprint'}) eq 'yes') {
2997: $allow_print_points=0;
2998: }
1.463 foxr 2999: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3000: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3001:
3002: }
1.233 www 3003: } elsif ($target eq 'web') {
1.479 raeburn 3004: if ($status eq 'CAN_ANSWER') {
3005: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3006: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 3007: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3008: ($Apache::lonhomework::randomizetrypart)) &&
3009: ($Apache::lonhomework::type ne 'randomizetry')) {
3010: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3011: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3012: $Apache::lonhomework::randomizetrypart = 1;
3013: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3014: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3015: }
3016: }
1.475 raeburn 3017: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3018: }
3019: }
3020: }
3021: } elsif ($target eq 'edit') {
3022: $result.=&Apache::edit::tag_start($target,$token);
3023: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3024: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3025: ' '.
3026: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3027: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3028: } elsif ($target eq 'modified') {
3029: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3030: $safeeval,'id','display');
1.159 albertel 3031: if ($constructtag) {
1.225 albertel 3032: #limiting ids to only letters numbers, and space
1.224 www 3033: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3034: $result = &Apache::edit::rebuild_tag($token);
3035: }
3036: }
3037: return $result;
1.11 albertel 3038: }
3039:
3040: sub end_part {
1.159 albertel 3041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3042: &Apache::lonxml::debug("in end_part $target ");
3043: my $status=$Apache::inputtags::status['-1'];
3044: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3045: my $in_order_show=&ordered_show_check();
1.321 albertel 3046: my $result;
3047: if (!$Apache::lonxml::metamode) {
3048: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3049: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3050: }
1.312 albertel 3051: if ($target eq 'grade') {
1.249 albertel 3052: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3053: !$hidden && $in_order_show) {
1.311 foxr 3054: $result.=&Apache::inputtags::grade;
1.249 albertel 3055: } else {
3056: # move any submission data to .hidden
3057: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3058: }
1.283 albertel 3059: } elsif (($target eq 'web' || $target eq 'tex') &&
3060: !$hidden && $in_order_show) {
1.159 albertel 3061: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3062: $target);
1.490 raeburn 3063: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3064: ($env{'form.grade_imsexport'})) {
1.212 albertel 3065: $gradestatus='';
3066: }
1.311 foxr 3067: $result.=$gradestatus;
1.512.2.24.2. (raeburn 3068:): if ($$tagstack[-2] eq 'td' and $target eq 'tex') {
3069:): if (not $env{'form.problem_split'}=~/yes/) {
3070:): $result.='\end{minipage}';
3071:): }
3072:): }
1.181 albertel 3073: } elsif ($target eq 'edit') {
1.311 foxr 3074: $result.=&Apache::edit::end_table();
1.322 albertel 3075: } elsif ($target eq 'modified') {
3076: $result .= $token->[2];
1.159 albertel 3077: }
3078: pop @Apache::inputtags::status;
3079: $Apache::inputtags::part='';
1.512.2.10 raeburn 3080: $Apache::inputtags::leniency='';
1.295 albertel 3081: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3082: return $result;
1.11 albertel 3083: }
1.1 albertel 3084:
1.25 albertel 3085: sub start_preduedate {
1.326 albertel 3086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3087: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3088: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3089: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3090: if (!$Apache::lonhomework::scantronmode &&
3091: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3092: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3093: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3094: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3095: }
1.24 albertel 3096: }
1.159 albertel 3097: return '';
1.24 albertel 3098: }
3099:
1.25 albertel 3100: sub end_preduedate {
1.159 albertel 3101: return '';
1.24 albertel 3102: }
3103:
1.369 foxr 3104: # In all the modes where <postanswerdate> text is
3105: # displayable, all we do is eat up the text between the start/stop
3106: # tags if the conditions are not right to display it.
1.25 albertel 3107: sub start_postanswerdate {
1.326 albertel 3108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3109: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3110: &Apache::lonnet::allowed('pav',
3111: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3112: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3113: $target eq 'tex' ) {
1.300 albertel 3114: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3115: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3116: (($target eq 'tex') && !$pav)) {
1.326 albertel 3117: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3118: }
3119: }
3120: return '';
1.24 albertel 3121: }
3122:
1.25 albertel 3123: sub end_postanswerdate {
1.159 albertel 3124: return '';
1.24 albertel 3125: }
3126:
1.25 albertel 3127: sub start_notsolved {
1.326 albertel 3128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3129: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3130: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3131: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3132: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3133: if ($gradestatus =~ /^correct/ &&
3134: &Apache::response::show_answer()) {
1.159 albertel 3135: &Apache::lonxml::debug("skipping");
1.326 albertel 3136: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3137: }
1.24 albertel 3138: }
1.159 albertel 3139: return '';
1.24 albertel 3140: }
3141:
1.25 albertel 3142: sub end_notsolved {
1.159 albertel 3143: return '';
1.24 albertel 3144: }
3145:
3146: sub start_solved {
1.326 albertel 3147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3148: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3149: $target eq 'tex') {
3150: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3151: if ($gradestatus !~ /^correct/ ||
3152: !&Apache::response::show_answer()) {
1.326 albertel 3153: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3154: }
1.24 albertel 3155: }
1.159 albertel 3156: return '';
1.24 albertel 3157: }
3158:
3159: sub end_solved {
1.248 albertel 3160: return '';
3161: }
3162:
3163: sub start_problemtype {
1.326 albertel 3164: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3165: my $result;
1.339 albertel 3166: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3167: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3168: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3169: if (!defined($mode)) { $mode='show'; }
3170: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3171: my $found=0;
3172: foreach my $type (split(',',$for)) {
3173: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3174: }
3175: if ($mode eq 'show' && !$found) {
1.326 albertel 3176: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3177: }
3178: if ($mode eq 'hide' && $found) {
1.326 albertel 3179: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3180: }
3181: } elsif ($target eq 'edit') {
3182: $result .=&Apache::edit::tag_start($target,$token);
3183: $result.=&Apache::edit::select_arg('Mode:','mode',
3184: [['show','Show'],
3185: ['hide','Hide']]
3186: ,$token);
3187: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 3188: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 3189: ['survey','Survey'],
1.465 raeburn 3190: ['surveycred','Survey (with credit)'],
3191: ['anonsurvey','Anonymous Survey'],
3192: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3193: ['problem','Homework Problem'],
1.479 raeburn 3194: ['practice','Practice Problem'],
3195: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3196: ,$token);
3197: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3198: } elsif ($target eq 'modified') {
3199: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3200: $safeeval,'mode','for');
3201: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3202: }
3203: return $result;
3204: }
3205:
3206: sub end_problemtype {
1.159 albertel 3207: return '';
1.24 albertel 3208: }
1.34 albertel 3209:
3210: sub start_startouttext {
1.159 albertel 3211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3212: my @result=(''.'');
3213: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3214:
3215: my $nesting =
3216: &Apache::lonxml::set_state('outtext',
3217: &Apache::lonxml::get_state('outtext')+1);
3218: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3219: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3220: }
1.159 albertel 3221: return (@result);
1.34 albertel 3222: }
1.159 albertel 3223:
1.34 albertel 3224: sub end_startouttext {
1.326 albertel 3225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3226: my $result='';
3227: my $text='';
3228: if ($target eq 'edit') {
1.424 foxr 3229: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3230: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3231: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3232: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3233: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3234: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3235: .'</span></td>'
1.512.2.12 raeburn 3236: .'<td><span id="math_'.$areaid.'">';
3237: if ($env{'environment.nocodemirror'}) {
3238: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3239: } else {
3240: $result.=' ';
3241: }
3242: $result.='</span></td>'
1.474 raeburn 3243: .'<td>'
3244: .&Apache::edit::insertlist($target,$token)
3245: .'</td>'
1.512.2.5 raeburn 3246: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3247: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3248: &Apache::edit::end_row().
1.362 albertel 3249: &Apache::edit::start_spanning_row()."\n".
1.255 www 3250: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3251: }
3252: if ($target eq 'modified') {
1.219 albertel 3253: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3254: }
3255: if ($target eq 'tex') {
3256: $result .= '\noindent ';
3257: }
3258: return $result;
1.34 albertel 3259: }
1.159 albertel 3260:
1.34 albertel 3261: sub start_endouttext {
1.159 albertel 3262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3263: my $result='';
3264: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3265: if ($target eq "modified") {
3266: $result='<endouttext />'.
1.377 albertel 3267: &Apache::edit::handle_insertafter('startouttext');
3268: }
1.404 albertel 3269:
3270: my $nesting =
3271: &Apache::lonxml::set_state('outtext',
3272: &Apache::lonxml::get_state('outtext')-1);
3273: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3274: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3275: &Apache::lonxml::set_state('outtext', 0);
3276: }
1.159 albertel 3277: return $result;
1.34 albertel 3278: }
1.159 albertel 3279:
1.34 albertel 3280: sub end_endouttext {
1.159 albertel 3281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3282: my @result=('','');
3283: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3284: return (@result);
1.34 albertel 3285: }
1.159 albertel 3286:
1.45 albertel 3287: sub delete_startouttext {
1.326 albertel 3288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3289: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3290: my $text=$$parser['-1']->get_text("/endouttext");
3291: my $ntoken=$$parser['-1']->get_token();
3292: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3293: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3294: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3295: # they did the last time round
3296: &Apache::lonxml::increasedepth($ntoken);
3297: &Apache::lonxml::decreasedepth($ntoken);
3298: return 1;
1.193 www 3299: }
3300:
3301: sub start_simpleeditbutton {
3302: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3303: my $result='';
1.284 albertel 3304: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3305: ($target eq 'web') &&
1.330 albertel 3306: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3307: my $url=$env{'request.noversionuri'};
1.193 www 3308: $url=~s/\?.*$//;
1.367 albertel 3309: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3310: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3311: # $result='<p class="LC_warning">'
3312: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3313: # .&Apache::loncommon::help_open_topic('Caching')
3314: # .'</p>';
1.486 www 3315: $result.=&Apache::loncommon::head_subbox(
3316: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3317: .&Apache::lonhtmlcommon::add_item_funclist(
3318: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3319: .&mt('Edit').'</a>')
1.486 www 3320: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3321:
1.193 www 3322: }
3323: return $result;
3324: }
3325:
3326: sub end_simpleeditbutton {
3327: return '';
1.45 albertel 3328: }
1.34 albertel 3329:
1.428 raeburn 3330: sub practice_problem_header {
3331: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3332: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3333: '</span>';
3334: }
3335:
1.479 raeburn 3336: sub randomizetry_problem_header {
1.512.2.21 raeburn 3337: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3338: my ($header,$text);
3339: if ($reqtries > 1) {
3340: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3341: if (($problemstatus eq 'no') ||
3342: ($problemstatus eq 'no_feedback_ever')) {
3343: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3344: } else {
3345: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3346: }
3347: } else {
3348: $header = &mt('New Problem Variation Each Try');
3349: if (($problemstatus eq 'no') ||
3350: ($problemstatus eq 'no_feedback_ever')) {
3351: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3352:
3353: } else {
3354: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3355: }
3356: }
1.512.2.21 raeburn 3357: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3358: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3359: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3360: } else {
3361: return '<h3 class="LC_info">'.$header.'</h3>'.
3362: '<span class="LC_info">'.$text.'</span><hr />';
3363: }
1.479 raeburn 3364: }
3365:
3366: sub randomizetry_part_header {
3367: my ($problemstatus,$reqtries,$num) = @_;
3368: my ($header,$text);
3369: if ($reqtries eq 'none') {
3370: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3371: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3372: } elsif ($reqtries > 1) {
3373: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3374: if (($problemstatus eq 'no') ||
3375: ($problemstatus eq 'no_feedback_ever')) {
3376: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3377: } else {
3378: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3379: }
3380: } else {
3381: $header = &mt('New Question Variation For Each Try');
3382: if (($problemstatus eq 'no') ||
3383: ($problemstatus eq 'no_feedback_ever')) {
3384: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3385: } else {
3386: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3387: }
3388: }
3389: my $output;
3390: if ($num > 1) {
3391: $output .= '<hr />';
3392: }
3393: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3394: '<span class="LC_info">'.$text.'</span><br /><br />';
3395: return $output;
3396: }
3397:
1.1 albertel 3398: 1;
3399: __END__
1.435 jms 3400:
3401: =pod
3402:
3403: =back
3404:
3405: =cut
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