Annotation of loncom/homework/structuretags.pm, revision 1.512.2.24.2.6
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 1.512.2.24.2.5 2023/09/07 20:47:14 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 * $timeout;
273: }
1.400 albertel 274: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 275: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 276: &setmode_javascript().
1.512.2.9 raeburn 277: <<"JS";
1.400 albertel 278: <script type="text/javascript">
1.483 raeburn 279: // <![CDATA[
1.494 raeburn 280: function setSubmittedPart (part,prefix) {
281: if (typeof(prefix) == 'undefined') {
282: this.document.lonhomework.submitted.value="part_"+part;
283: } else {
284: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
285: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
286: this.document.lonhomework.elements[i].value="part_"+part;
287: }
288: }
289: }
1.400 albertel 290: }
291:
1.512.2.9 raeburn 292: function disableAutoComplete (id) {
293: var field = document.getElementById(id);
294: if (field != null && field != undefined){
295: if ('autocomplete' in field) {
296: field.autocomplete = "off";
297: } else {
298: field.setAttribute("autocomplete", "off");
299: }
300: }
301: }
302:
1.400 albertel 303: function image_response_click (which, e) {
304: init_geometry();
305: if (!e) { e = window.event; } //IE
306: var input_element = document.lonhomework.elements[which];
1.401 albertel 307: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 308: var token = token_element.value;
1.401 albertel 309: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 310: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
311: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
312: var click = x+':'+y;
313: input_element.value = click;
1.485 raeburn 314: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 315: }
1.512.2.9 raeburn 316:
317: var submithandled = 0;
318: var keypresshandled = 0;
319: var postsubmit = '$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:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
1.512.2.13 raeburn 393: var initial = form.problemmode.value;
1.416 raeburn 394: form.problemmode.value = probmode;
395: form.submit();
1.512.2.13 raeburn 396: form.problemmode.value = initial;
1.416 raeburn 397: }
1.485 raeburn 398: // ]]>
1.416 raeburn 399: </script>
400: ENDSCRIPT
401: }
402:
1.48 albertel 403: sub page_start {
1.345 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
405: $extra_head)=@_;
1.159 albertel 406: my %found;
1.207 albertel 407: foreach my $taginside (@$tagstack) {
1.159 albertel 408: foreach my $taglookedfor ('html','body','form') {
409: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
410: }
411: }
412:
1.343 albertel 413: if ($target eq 'tex') {
414: return
415: &Apache::londefdef::start_html($target,$token,$tagstack,
416: $parstack,$parser,$safeeval);
417: }
418:
1.474 raeburn 419: $extra_head .= &homework_js().
420: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
421: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 422: my %textarea_args;
423: if (($env{'request.state'} ne 'construct') ||
424: ($env{'environment.nocodemirror'})) {
425: %textarea_args = (
1.474 raeburn 426: dragmath => 'math',
427: );
1.512.2.12 raeburn 428: }
1.474 raeburn 429: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 430: }
1.478 raeburn 431: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 432: my ($needs_upload,$partlist);
1.495 raeburn 433: my ($symb)= &Apache::lonnet::whichuser();
434: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 435: if ($is_task) {
1.495 raeburn 436: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 437: } else {
438: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 439: unless ($env{'request.state'} eq 'construct') {
440: my $navmap = Apache::lonnavmaps::navmap->new();
441: if (ref($navmap)) {
442: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 443: my $is_page;
444: if (ref($mapres)) {
445: $is_page = $mapres->is_page();
446: }
447: unless ($is_page) {
1.495 raeburn 448: $needs_upload = 1;
449: }
1.512.2.9 raeburn 450: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
451: my $res = $navmap->getBySymb($symb);
452: if (ref($res)) {
453: $partlist = $res->parts();
454: }
455: }
1.495 raeburn 456: }
457: }
1.493 raeburn 458: } else {
459: unless ($env{'request.state'} eq 'construct') {
460: my $navmap = Apache::lonnavmaps::navmap->new();
461: if (ref($navmap)) {
1.495 raeburn 462: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 463: my $is_page;
464: if (ref($mapres)) {
465: $is_page = $mapres->is_page();
466: }
1.512.2.9 raeburn 467: if ($is_page) {
468: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
471: $partlist = $res->parts();
472: }
473: }
474: } else {
1.495 raeburn 475: my $res = $navmap->getBySymb($symb);
476: if (ref($res)) {
1.512.2.9 raeburn 477: $partlist = $res->parts();
1.495 raeburn 478: if (ref($partlist) eq 'ARRAY') {
479: foreach my $part (@{$partlist}) {
480: my @types = $res->responseType($part);
481: my @ids = $res->responseIds($part);
482: for (my $i=0; $i < scalar(@ids); $i++) {
483: if ($types[$i] eq 'essay') {
484: my $partid = $part.'_'.$ids[$i];
485: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
486: $needs_upload = 1;
487: last;
488: }
1.493 raeburn 489: }
490: }
491: }
1.495 raeburn 492: }
493: }
1.493 raeburn 494: }
495: }
496: }
497: }
1.495 raeburn 498: if ($needs_upload) {
1.512.2.17 raeburn 499: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
500: '<script type="text/javascript" '.
501: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 502: }
1.478 raeburn 503: }
1.425 raeburn 504:
1.344 albertel 505: my %body_args;
506: if (defined($found{'html'})) {
507: $body_args{'skip_phases'}{'head'}=1;
508: } else {
1.343 albertel 509:
1.345 albertel 510: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 511:
1.379 albertel 512: $extra_head .= &Apache::londefdef::generate_css_links();
513:
1.384 albertel 514: if ($env{'request.state'} eq 'construct') {
1.343 albertel 515: $extra_head.=&Apache::edit::js_change_detection().
516: "<script type=\"text/javascript\">\n".
517: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
518: &Apache::loncommon::browser_and_searcher_javascript().
519: "\n</script>\n";
1.512.2.9 raeburn 520: if ($target eq 'edit') {
521: $extra_head .= &Apache::edit::js_update_linknum();
522: }
1.343 albertel 523: }
1.159 albertel 524: }
1.343 albertel 525:
1.446 bisitz 526: my $pageheader = '';
1.344 albertel 527: if (defined($found{'body'})) {
528: $body_args{'skip_phases'}{'body'}=1;
529: } elsif (!defined($found{'body'})
530: && $env{'request.state'} eq 'construct') {
1.343 albertel 531: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 532: # Breadcrumbs for Authoring Space
1.450 bisitz 533: &Apache::lonhtmlcommon::clear_breadcrumbs();
534: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 535: 'text' => 'Authoring Space',
1.497 raeburn 536: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 537: });
1.460 droeschl 538: # breadcrumbs (and tools) will be created
539: # in start_page->bodytag->innerregister
540:
1.450 bisitz 541: # FIXME Where are we?
542: # &Apache::lonhtmlcommon::add_breadcrumb({
543: # 'text' => 'Problem Editing', # 'Problem Testing'
544: # 'href' => '',
545: # });
1.460 droeschl 546: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 547: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 548: }
1.272 albertel 549: } elsif (!defined($found{'body'})) {
1.343 albertel 550: my %add_entries;
1.159 albertel 551: my $background=&Apache::lonxml::get_param('background',$parstack,
552: $safeeval);
1.343 albertel 553: if ($background ne '' ) {
554: $add_entries{'background'} = $background;
555: }
1.344 albertel 556:
1.290 albertel 557: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
558: $safeeval);
1.446 bisitz 559: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 560:
1.446 bisitz 561: $body_args{'bgcolor'} = $bgcolor;
562: # $body_args{'no_title'} = 1;
563: $body_args{'force_register'} = 1;
564: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 565: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 566: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 567: } elsif ($target eq 'web') {
568: $body_args{'print_suppress'} = 1;
1.446 bisitz 569: }
1.344 albertel 570: }
1.365 albertel 571: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 572: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
573: \%body_args);
1.446 bisitz 574: $page_start .= $pageheader;
1.462 raeburn 575: if (!defined($found{'body'})
576: && $env{'request.state'} ne 'construct'
577: && ($target eq 'web' || $target eq 'webgrade')) {
578:
579: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
580: if ($symb eq '' && !$publicuser) {
581: $page_start .= '<p class="LC_info">'
582: .&mt('Browsing resource, all submissions are temporary.')
583: .'</p>';
1.457 bisitz 584: }
1.344 albertel 585: }
586:
1.409 albertel 587: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 588: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 589: }
590: my $form_tag_start;
591: if (!defined($found{'form'})) {
1.337 albertel 592: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 593: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 594: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 595: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 596: $form_tag_start.=$uri.'" ';
597: if ($target eq 'edit') {
598: $form_tag_start.=&Apache::edit::form_change_detection();
599: }
1.493 raeburn 600: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
601: my ($path,$multiresp) =
602: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.512.2.24.2. (raeburn 603:): if ($env{'request.user_in_effect'}) {
604:): $form_tag_start .= ' onsubmit="preventDefault();"';
605:): } elsif (($is_task) || ($needs_upload)) {
1.495 raeburn 606: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 607: }
1.368 albertel 608: $form_tag_start.='>'."\n";
1.355 albertel 609:
610: if ($symb =~ /\S/) {
611: $symb=
612: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
613: $form_tag_start.=
1.368 albertel 614: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 615: }
1.159 albertel 616: }
1.512.2.9 raeburn 617: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 618: }
619:
1.141 matthew 620: #use Time::HiRes();
1.105 albertel 621: sub get_resource_name {
1.159 albertel 622: my ($parstack,$safeeval)=@_;
1.388 foxr 623: my $name;
1.204 albertel 624: if (defined($Apache::lonhomework::name)) {
1.388 foxr 625: $name = $Apache::lonhomework::name;
626: } else {
627: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 628: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 629: if ($name eq '') {
630: $name=&Apache::lonnet::EXT('resource.title');
631: if ($name eq 'con_lost') { $name = ''; }
632: }
633: if ($name!~/\S+/) {
634: $name=$env{'request.uri'};
635: $name=~s-.*/([^/]+)$-$1-;
636: }
637: # The name has had html tags escaped:
638:
639: $name=~s/</</gs;
640: $name=~s/>/>/gs;
641:
642: $Apache::lonhomework::name=$name;
1.204 albertel 643: }
1.159 albertel 644: return $name;
1.105 albertel 645: }
646:
647: sub setup_rndseed {
1.512.2.9 raeburn 648: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 649: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 650: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 651: if ($target eq 'analyze') {
652: $questiontype = $env{'form.grade_questiontype'};
653: }
654: unless (defined($questiontype)) {
655: $questiontype = $Apache::lonhomework::type;
656: }
1.512.2.19 raeburn 657: if ($Apache::lonhomework::type eq 'randomizetry') {
658: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 659: #
660: # Where question type is "randomizetry" for a problem containing
661: # a single part (and unless type is explicitly set to not be
662: # "randomizetry" for that part), the number of tries used to
663: # determine randomization will be for that part, and randomization
664: # from calls to &random() in a perl script block before the part tag,
665: # will change based on the number of tries, and value of the
666: # "randomizeontries" parameter in effect for the single part.
667: #
1.512.2.19 raeburn 668: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 669: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
670: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 671: $partfortries = $probpartlist->[0];
672: } else {
673: $partfortries = '';
674: }
1.512.2.19 raeburn 675: }
676: }
1.512.2.21 raeburn 677: if ($partfortries ne '') {
678: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
679: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
680: }
1.512.2.19 raeburn 681: }
1.512.2.24.2. (raeburn 682:): if (($env{'request.state'} eq "construct")
1.512.2.14 raeburn 683: || ($symb eq '')
684: || ($Apache::lonhomework::type eq 'practice')
1.512.2.24.2. (raeburn 685:): || ($Apache::lonhomework::history{'resource.CODE'})
1.512.2.14 raeburn 686: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 687: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 688: ['rndseed']);
1.284 albertel 689: $rndseed=$env{'form.rndseed'};
1.159 albertel 690: if (!$rndseed) {
1.162 albertel 691: $rndseed=$Apache::lonhomework::history{'rndseed'};
692: if (!$rndseed) {
693: $rndseed=time;
694: }
1.512.2.14 raeburn 695: unless ($env{'form.code_for_randomlist'}) {
696: $env{'form.rndseed'}=$rndseed;
697: }
1.162 albertel 698: }
1.512.2.20 raeburn 699: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 700: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 701: if ($numtries) {
702: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
703: my $inc = int($numtries/$reqtries);
704: $rndseed += $inc;
705: } else {
706: $rndseed += $numtries;
707: }
1.479 raeburn 708: }
1.480 raeburn 709: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 710: }
1.374 albertel 711: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
712: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 713: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 714: srand(time);
715: $rndseed=int(rand(2100000000));
1.284 albertel 716: $env{'form.rndseed'}=$rndseed;
717: delete($env{'form.resetdata'});
718: delete($env{'form.newrandomization'});
1.159 albertel 719: }
1.488 www 720: $rndseed=~s/\,/\:/g;
721: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 722: if (defined($rndseed)) {
723: my ($c1,$c2)=split(/\:/,$rndseed);
724: unless ($c2) { $c2=0; }
725: unless (($c1==int($c1)) && ($c2==int($c2))) {
726: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
727: }
1.187 albertel 728: }
1.512.2.14 raeburn 729: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
730: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
731: $rndseed=&Apache::lonnet::rndseed();
732: undef($env{'form.CODE'});
733: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 734: $rndseed=&Apache::lonnet::rndseed();
735: }
1.479 raeburn 736: $set_safespace = 1;
737: } elsif ($questiontype eq 'randomizetry') {
738: if ($target eq 'analyze') {
739: if (defined($env{'form.grade_rndseed'})) {
740: $rndseed = $env{'form.grade_rndseed'};
741: }
742: }
743: unless (($target eq 'analyze') && (defined($rndseed))) {
744: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 745: my $curr_try = $numtries;
1.479 raeburn 746: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
747: $curr_try ++;
748: }
749: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
750: $rndseed = $1;
751: }
752: if ($curr_try) {
753: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
754: my $inc = int(($curr_try-1)/$reqtries);
755: $rndseed += $inc;
756: } else {
757: $rndseed += $curr_try;
758: }
759: }
760: }
761: $set_safespace = 1;
1.512.2.9 raeburn 762: if ($target eq 'grade') {
763: $Apache::lonhomework::rawrndseed = $rndseed;
764: }
1.479 raeburn 765: }
766: if ($set_safespace) {
767: if ($safeeval) {
768: &Apache::lonxml::debug("Setting rndseed to $rndseed");
769: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
770: }
771: }
772: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
773: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 774: }
775: return $rndseed;
1.105 albertel 776: }
777:
1.268 albertel 778: sub remember_problem_state {
779: return '
1.284 albertel 780: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
781: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
782: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 783: }
784:
1.487 www 785: sub problem_edit_action_button {
786: my ($name,$action,$accesskey,$text,$flag)=@_;
787: my $actionscript="setmode(this.form,'$action')";
788: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
789: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
790: }
791:
1.423 www 792: sub problem_edit_buttons {
1.487 www 793: my ($mode)=@_;
1.512.2.11 raeburn 794: # Buttons that save
795: my $result = '<div style="float:right">';
796: if ($mode eq 'editxml') {
797: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
798: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
799: } else {
800: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
801: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
802: }
803: $result.="\n</div>\n";
1.487 www 804: # Buttons that do not save
1.512.2.11 raeburn 805: $result .= '<div>'.
1.487 www 806: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
807: if ($mode eq 'editxml') {
808: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
809: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 810: if ($env{'environment.nocodemirror'}) {
811: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
812: }
1.487 www 813: } else {
814: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
815: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
816: }
817: $result.="\n</div>";
818: return $result;
1.423 www 819: }
820:
821: sub problem_edit_header {
1.512.2.11 raeburn 822: my ($mode)=@_;
823: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 824: &remember_problem_state('edit').'
1.512.2.11 raeburn 825: <div class="LC_edit_problem_header">
826: <div class="LC_edit_problem_header_title">
827: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
828: </div><div class="LC_edit_actionbar" id="actionbar">'.
829: '<input type="hidden" name="problemmode" value="saveedit" />'.
830: &problem_edit_buttons();
831:
832: $return .= '</div></div>' . &Apache::lonxml::message_location();
833: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
834: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
835:
836: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
837: <script type="text/javascript">
838: // unless internet explorer
839: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
840: $(document).ready(
841: function() {
842: $(\'.LC_edit_actionbar\').scrollToFixed(
843: {
844: fixed: function(){
845: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
846: $(this).find(\'.LC_edit_actionbar\');
847: }
848: }
849: );
850: }
851: );
852: }
853: </script>
854: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
855: return $return;
1.105 albertel 856: }
857:
1.512.2.11 raeburn 858:
1.105 albertel 859: sub problem_edit_footer {
1.512.2.11 raeburn 860: my $resource = $env{'request.ambiguous'};
1.412 albertel 861: return '</td></tr></table><br />
862: <div class="LC_edit_problem_footer">
1.453 bisitz 863: <hr />'.
1.423 www 864: &problem_edit_buttons().'
1.459 bisitz 865: <hr style="clear:both;" />
1.512.2.11 raeburn 866: <script type="text/javascript">
867: restoreState("'.$resource.'");
868: restoreScrollPosition("'.$resource.'");
869: </script>
1.412 albertel 870: </div>
871: '.
1.342 albertel 872: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 873: }
874:
1.235 albertel 875: sub option {
876: my ($value,$name) = @_;
877: my $result ="<option value='".$value."' ";
1.284 albertel 878: if ($env{'form.'.$name} eq $value) {
1.235 albertel 879: $result.=" selected='on' ";
880: }
881: $result.='>';
882: return $result;
883: }
884:
1.105 albertel 885: sub problem_web_to_edit_header {
1.159 albertel 886: my ($rndseed)=@_;
1.406 albertel 887: my $result .= '<div class="LC_edit_problem_header">';
888:
889: if (!$Apache::lonhomework::parsing_a_task) {
890: $result .=
891: '<div class="LC_edit_problem_header_title">'.
892: &mt('Problem Testing').
893: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
894: '</div>';
895: } else {
896: $result .=
897: '<div class="LC_edit_problem_header_title">'.
898: &mt('Task Testing').
899: '</div>';
900: }
901:
1.315 albertel 902: my $show_all_foils_text =
903: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 904: &mt('Show All Instances')
905: : &mt('Show All Foils');
1.315 albertel 906:
1.452 bisitz 907: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
908: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 909: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 910: $show_all.= ' /> '.$show_all_foils_text
911: .'</label></span>';
1.406 albertel 912:
913:
1.384 albertel 914:
1.406 albertel 915: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 916: if (!$Apache::lonhomework::parsing_a_task) {
917: $result.="
1.406 albertel 918: <div class='LC_edit_problem_header_row1'>
919: <span class=\"LC_nobreak\">
1.405 albertel 920: ".&mt("Problem Status:")."
1.235 albertel 921: <select name='problemstate'>
1.270 albertel 922: <option value=''></option>
1.235 albertel 923: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
924: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
925: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
926: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
927: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
928: </select>
1.406 albertel 929: </span>
930: <span class=\"LC_nobreak\">
1.405 albertel 931: ".&mt("Problem Type:")."
1.235 albertel 932: <select name='problemtype'>
1.270 albertel 933: <option value=''></option>
1.512.2.1 raeburn 934: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 935: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 936: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 937: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
938: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
939: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 940: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 941: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 942: </select>
1.406 albertel 943: </span>
944: $show_all
945: </div>
946: <div class='LC_edit_problem_header_row2'>
947: <span class=\"LC_nobreak\">
1.405 albertel 948: ".&mt("Feedback Mode:")."
1.235 albertel 949: <select name='problemstatus'>
950: <option value=''></option>
1.242 albertel 951: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 952: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 953: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 954: </select>
1.406 albertel 955: </span>
956: ";
957:
1.376 albertel 958: } elsif ($Apache::lonhomework::parsing_a_task) {
959: $result.="
1.406 albertel 960: <div class='LC_edit_problem_header_row1'>
961: <span class=\"LC_nobreak\">
1.405 albertel 962: ".&mt("Problem Status:")."
1.376 albertel 963: <select name='problemstate'>
964: <option value=''></option>
965: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
966: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
967: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
968: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
969: </select>
1.406 albertel 970: </span>
971: $show_all
972: ";
973: }
974: $result.='
975: <span class="LC_nobreak">
976: '.&mt('Apply style file: ').'
977: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
978: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
979: </span>
1.422 www 980: </div>
981: <div class="LC_edit_problem_header_row1">'.
982: &Apache::lonxml::renderingoptions().'
1.406 albertel 983: </div>
984: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
985: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
986: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
987: </div>
1.453 bisitz 988: <hr />
1.406 albertel 989: <div class="LC_edit_problem_header_randomize_row">
990: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
991: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 992: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 993: $rndseed.'"
994: onchange="javascript:document.lonhomework.changerandseed.click()" />';
995:
996: if (!$Apache::lonhomework::parsing_a_task) {
997: my $numtoanalyze=$env{'form.numtoanalyze'};
998: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 999: $result .= '<span class="LC_nobreak">'.
1000: &mt('[_1] for [_2] versions.',
1.416 raeburn 1001: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1002: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1003: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1004: $numtoanalyze.'" size="5" />').
1005: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1006: '</span>';
1007:
1.313 albertel 1008: }
1.406 albertel 1009:
1010: $result.='
1011: </div>
1.453 bisitz 1012: <hr />
1.447 bisitz 1013: <div>';
1.416 raeburn 1014: $result.='<input type="hidden" name="problemmode" value="view" />';
1015: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1016: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1017: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1018: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1019: $result.='
1020: </div>
1.453 bisitz 1021: <hr />
1.409 albertel 1022: '.&Apache::lonxml::message_location().'
1.406 albertel 1023: </div>';
1.159 albertel 1024: return $result;
1.48 albertel 1025: }
1026:
1.65 albertel 1027: sub initialize_storage {
1.357 albertel 1028: my ($given_symb) = @_;
1.353 albertel 1029: undef(%Apache::lonhomework::results);
1030: undef(%Apache::lonhomework::history);
1.357 albertel 1031: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1032: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1033:
1034: # anonymous users (CODEd exams) have no data
1035: if ($name eq 'anonymous'
1036: && !defined($domain)) {
1037: return;
1038: }
1039:
1.333 albertel 1040: if ($env{'request.state'} eq 'construct'
1041: || $symb eq ''
1042: || $Apache::lonhomework::type eq 'practice') {
1043:
1044: my $namespace = $symb || $env{'request.uri'};
1045: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1046: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1047: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1048: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1049: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1050: &Apache::lonxml::debug("Attempt reset");
1051: }
1.159 albertel 1052: %Apache::lonhomework::history=
1.333 albertel 1053: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1054: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1055: &Apache::lonxml::debug("Return message of $temp");
1056: } else {
1057: %Apache::lonhomework::history=
1058: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1059: }
1.353 albertel 1060:
1.159 albertel 1061: #ignore error conditions
1.512.2.9 raeburn 1062: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1063: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1064: }
1065:
1.435 jms 1066: =pod
1067:
1068: =item finalize_storage()
1069:
1.512.2.9 raeburn 1070: Stores away the result hash to a student's environment;
1071: checks form.grade_ for specific values, otherwise stores
1072: to the running user's environment.
1073:
1074: &check_correctness_changes() is called in two circumstances
1075: in which the results hash is to be stored permanently, for
1076: grading triggered by a student's submission, where feedback on
1077: correctness is to be provided to the student.
1078:
1079: 1. Immediately prior to storing the results hash
1080:
1081: To handle the case where a student's submission (and award) were
1082: stored after history was retrieved in &initialize_storage(), e.g.,
1083: if a student submitted answers in quick succession (e.g., from
1084: multiple tabs). &Apache::inputtags::hidealldata() is called for
1085: any parts with out-of-order storage (i.e., correct then incorrect,
1086: where awarded >= 1 when correct).
1087:
1088: 2. Immediately after storing the results hash
1089:
1090: To handle the case where lond on the student's homeserver returns
1091: delay:N -- where N is the number of transactions between the last
1092: retrieved in &initialize_storage() and the last stored immediately
1093: before permanent storage of the current transaction via
1094: lond::store_handler(). &Apache::grades::makehidden() is called
1095: for any parts with out-of-order storage (i.e., correct then incorrect,
1096: where awarded >= 1 when correct).
1097:
1.512.2.24.2. (raeburn 1098:): Will call &store_aggregates() to increment totals for attempts,
1.512.2.9 raeburn 1099: students, and corrects, if running user has student role.
1.512.2.24.2. (raeburn 1100:):
1.435 jms 1101: =cut
1102:
1103:
1.65 albertel 1104: sub finalize_storage {
1.357 albertel 1105: my ($given_symb) = @_;
1.159 albertel 1106: my $result;
1.289 albertel 1107: if (%Apache::lonhomework::results) {
1.323 albertel 1108: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1109: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1110: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1111: &Apache::lonnet::whichuser($given_symb);
1.512.2.24.2. (raeburn 1112:): my ($passback,$pbscope,$pbmap,$pbsymb,$pbtype,$crsdef,$ltinum,
1113:): $ltiref,$total,$possible,$dopassback);
1.333 albertel 1114: if ($env{'request.state'} eq 'construct'
1115: || $symb eq ''
1116: || $Apache::lonhomework::type eq 'practice') {
1117: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1118: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1119: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1120: $namespace,'',$domain,$name);
1.159 albertel 1121: &Apache::lonxml::debug('Construct Store return message:'.$result);
1122: } else {
1.512.2.24.2. (raeburn 1123:): my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.512.2.9 raeburn 1124: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1125: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1126: (!defined($env{'form.grade_courseid'}))) {
1.512.2.24.2. (raeburn 1127:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1128:): my ($map)=&Apache::lonnet::decode_symb($symb);
1129:): $map = &Apache::lonnet::clutter($map);
1130:): if ($env{'request.lti.login'}) {
1131:): ($passback,$pbscope,$pbmap,$pbsymb,$ltinum,$ltiref) =
1132:): &needs_lti_passback($courseid,$symb,$map);
1133:): } elsif ($env{'request.deeplink.login'}) {
1134:): ($passback,$pbscope,$pbmap,$pbsymb,$crsdef,$ltinum,$ltiref) =
1135:): &needs_linkprot_passback($courseid,$symb,$map);
1136:): }
1137:): }
1.512.2.9 raeburn 1138: if ($Apache::lonhomework::history{'version'}) {
1139: $laststore = $Apache::lonhomework::history{'version'}.'='.
1140: $Apache::lonhomework::history{'timestamp'};
1141: } else {
1142: $laststore = '0=0';
1143: }
1.512.2.24.2. (raeburn 1144:): %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.512.2.9 raeburn 1145: if ($record{'version'}) {
1146: my ($newversion,$oldversion,$oldtimestamp);
1147: if ($Apache::lonhomework::history{'version'}) {
1148: $oldversion = $Apache::lonhomework::history{'version'};
1149: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1150: } else {
1151: $oldversion = 0;
1152: $oldtimestamp = 0;
1153: }
1154: if ($record{'version'} > $oldversion) {
1155: if ($record{'timestamp'} >= $oldtimestamp) {
1156: $laststore = $record{'version'}.'='.$record{'timestamp'};
1157: $newversion = $record{'version'} + 1;
1158: $checkedparts = 1;
1159: foreach my $key (keys(%Apache::lonhomework::results)) {
1160: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1161: my $part = $1;
1162: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1163: push(@parts,$part);
1164: }
1165: }
1166: }
1167: if (@parts) {
1168: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1169: \%record,\@parts,$newversion,
1170: $oldversion);
1171: if (@parts_to_hide) {
1172: foreach my $part (@parts_to_hide) {
1173: $postcorrect{$part} = 1;
1174: &Apache::inputtags::hidealldata($part);
1175: }
1176: }
1177: }
1178: }
1179: }
1180: }
1181: }
1.159 albertel 1182: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1183: $symb,$courseid,$domain,$name,$laststore);
1184: if ($result =~ /^delay\:(\d+)$/) {
1185: my $numtrans = $1;
1186: my ($oldversion) = split(/=/,$laststore);
1187: if ($numtrans) {
1188: my $newversion = $oldversion + 1 + $numtrans;
1189: my @possparts;
1190: if ($checkedparts) {
1191: foreach my $part (@parts) {
1192: unless ($postcorrect{$part}) {
1193: push(@possparts,$part);
1194: }
1195: }
1196: } else {
1197: foreach my $key (keys(%Apache::lonhomework::results)) {
1198: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1199: my $part = $1;
1200: unless ($postcorrect{$part}) {
1201: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1202: push(@possparts,$part);
1203: }
1204: }
1205: }
1206: }
1207: }
1208: if (@possparts) {
1209: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1210: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1211: \%newrecord,\@possparts,$newversion,
1212: $oldversion);
1213: if (@parts_to_hide) {
1214: my $partslist = join(',',@parts_to_hide);
1215: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1216: }
1217: }
1218: }
1219: }
1.512.2.24.2. (raeburn 1220:): if ($passback) {
1221:): foreach my $key (keys(%Apache::lonhomework::results)) {
1222:): if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1223:): my $part = $1;
1224:): if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1225:): ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1226:): ($Apache::lonhomework::results{"resource.$part.tries"})) {
1227:): $dopassback = 1;
1228:): last;
1229:): }
1230:): }
1231:): }
1232:): }
1233:): if (($dopassback) && ($pbscope eq 'resource') && ($pbsymb eq $symb)) {
1234:): $total = 0;
1235:): $possible = 0;
1236:): my $navmap = Apache::lonnavmaps::navmap->new();
1237:): if (ref($navmap)) {
1238:): my $res = $navmap->getBySymb($symb);
1239:): if (ref($res)) {
1240:): my $partlist = $res->parts();
1241:): if (ref($partlist) eq 'ARRAY') {
1242:): foreach my $part (@{$partlist}) {
1243:): unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1244:): next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1245:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1246:): $possible += $weight;
1247:): if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1248:): my $awarded = $record{"resource.$part.awarded"};
1249:): if ($awarded) {
1250:): $total += $weight * $awarded;
1251:): }
1252:): }
1253:): }
1254:): }
1255:): }
1256:): }
1257:): }
1258:): foreach my $key (keys(%Apache::lonhomework::results)) {
1259:): if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1260:): my $part = $1;
1261:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1262:): $possible += $weight;
1263:): my $awarded = $Apache::lonhomework::results{$key};
1264:): if ($awarded) {
1265:): $total += $weight * $awarded;
1266:): }
1267:): }
1268:): }
1269:): }
1.159 albertel 1270: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1271: &store_aggregates($symb,$courseid);
1.512.2.24.2. (raeburn 1272:): if ($dopassback) {
1273:): my $scoreformat = 'decimal';
1274:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1275:): if (ref($ltiref) eq 'HASH') {
1276:): if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1277:): $scoreformat = $1;
1278:): }
1279:): }
1280:): }
1281:): my ($pbid,$pburl,$pbtype);
1282:): if ($env{'request.lti.login'}) {
1283:): $pbid = $env{'request.lti.passbackid'};
1284:): $pburl = $env{'request.lti.passbackurl'};
1285:): $pbtype = 'lti';
1286:): } elsif ($env{'request.deeplink.login'}) {
1287:): $pbid = $env{'request.linkprotpbid'};
1288:): $pburl = $env{'request.linkprotpburl'};
1289:): $pbtype = 'linkprot';
1290:): }
1291:): my $ltigrade = {
1292:): 'ltinum' => $ltinum,
1293:): 'lti' => $ltiref,
1294:): 'crsdef' => $crsdef,
1295:): 'cid' => $courseid,
1296:): 'uname' => $env{'user.name'},
1297:): 'udom' => $env{'user.domain'},
1298:): 'pbid' => $pbid,
1299:): 'pburl' => $pburl,
1300:): 'pbtype' => $pbtype,
1301:): 'scope' => $pbscope,
1302:): 'pbmap' => $pbmap,
1303:): 'pbsymb' => $pbsymb,
1304:): 'format' => $scoreformat,
1305:): };
1306:): if ($pbscope eq 'resource') {
1307:): $ltigrade->{'total'} = $total;
1308:): $ltigrade->{'possible'} = $possible;
1309:): }
1310:): push(@Apache::lonhomework::ltipassback,$ltigrade);
1311:): }
1.159 albertel 1312: }
1.323 albertel 1313: } else {
1314: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1315: }
1.159 albertel 1316: return $result;
1.65 albertel 1317: }
1318:
1.512.2.24.2. (raeburn 1319:): sub needs_lti_passback {
1320:): my ($courseid,$symb,$map) = @_;
1321:): if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1322:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1323:): my ($cdom,$cnum) = ($1,$2);
1324:): my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1325:): if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1326:): if ($lti{$env{'request.lti.login'}}{'passback'}) {
1327:): my $itemnum = $env{'request.lti.login'};
1328:): my ($ltiscope,$ltiuri,$ltisymb) =
1329:): &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1330:): $cdom,$cnum,1);
1331:): my ($passback,$ltimap);
1332:): if ($ltiscope eq 'resource') {
1333:): if ($ltisymb eq $symb) {
1334:): $passback = 1;
1335:): }
1336:): } elsif ($ltiscope eq 'map') {
1337:): if ($ltiuri eq $map) {
1338:): $passback = 1;
1339:): $ltimap = $map;
1340:): }
1341:): } elsif ($ltiscope eq 'course') {
1342:): if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1343:): $passback = 1;
1344:): }
1345:): }
1346:): return ($passback,$ltiscope,$ltimap,$ltisymb,$itemnum,$lti{$itemnum});
1347:): }
1348:): }
1349:): }
1350:): }
1351:): return;
1352:): }
1353:):
1354:): sub needs_linkprot_passback {
1355:): my ($courseid,$symb,$map) = @_;
1356:): if (($env{'request.linkprotpbid'}) && ($env{'request.linkprotpburl'})) {
1357:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1358:): my ($cdom,$cnum) = ($1,$2);
1359:): my ($deeplink_symb,$deeplink_map,$deeplink,$passback);
1360:): $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
1361:): if ($deeplink_symb) {
1362:): if ($deeplink_symb =~ /\.(page|sequence)$/) {
1363:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[2]);
1364:): my $navmap = Apache::lonnavmaps::navmap->new();
1365:): if (ref($navmap)) {
1366:): $deeplink = $navmap->get_mapparam(undef,$deeplink_map,'0.deeplink');
1367:): }
1368:): } else {
1369:): $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$deeplink_symb);
1370:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[0]);
1371:): }
1372:): if (($deeplink ne '') && ($env{'request.linkprot'} ne '')) {
1373:): my ($itemid,$tinyurl) = split(/:/,$env{'request.linkprot'});
1374:): if ($itemid =~ /^(\d+)(c|d)$/) {
1375:): my ($itemnum,$itemtype) = ($1,$2);
1376:): my ($crsdef,$lti_in_use);
1377:): if ($itemtype eq 'c') {
1378:): $crsdef = 1;
1379:): my %crslti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
1380:): $lti_in_use = $crslti{$itemnum};
1381:): } else {
1382:): my %domlti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
1383:): $lti_in_use = $domlti{$itemnum};
1384:): }
1385:): my ($state,$others,$listed,$scope,$protect,$display,$target,$exit) = split(/,/,$deeplink);
1386:): my $passback;
1387:): if ($scope eq 'resource') {
1388:): if ($deeplink_symb eq $symb) {
1389:): $passback = 1;
1390:): }
1391:): } elsif ($scope eq 'map') {
1392:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1393:): $passback = 1;
1394:): }
1395:): } elsif ($scope eq 'recurse') {
1396:): #FIXME check if $deeplink_map contains $map
1397:): $passback = 1;
1398:): }
1399:): return ($passback,$scope,$deeplink_map,$deeplink_symb,$crsdef,$itemnum,$lti_in_use);
1400:): }
1401:): }
1402:): }
1403:): }
1404:): }
1405:): }
1406:):
1.435 jms 1407: =pod
1408:
1.512.2.9 raeburn 1409: =item check_correctness_changes()
1410:
1411: For all parts for which current results contain a solved status
1412: of "incorrect_attempted", check if there was a transaction in which
1413: solved was set to "correct_by_student" in the time since the last
1414: transaction (retrieved when &initialize_storage() was called i.e.,
1415: when &start_problem() was called), unless:
1416: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1417: (b) problemstatus is set to no or no_feedback_ever
1418: If such a transaction exists, and did not occur after "reset status"
1419: by a user with grading privileges, then the current transaction is an
1420: example of an out-of-order transaction (i.e., incorrect occurring after
1421: correct). Accordingly, the current transaction should be hidden.
1422:
1423: =cut
1424:
1425:
1426: sub check_correctness_changes {
1427: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1428: my @parts_to_hide;
1429: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1430: return @parts_to_hide;
1431: }
1432: if (@{$parts}) {
1433: my $usec;
1434: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1435: ($env{'request.course.id'} eq $courseid)) {
1436: $usec = $env{'request.course.sec'};
1437: } else {
1438: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1439: }
1440: foreach my $id (@{$parts}) {
1441: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1442: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1443: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1444: my $reset;
1445: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1446: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1447: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1448: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1449: $reset = 1;
1450: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1451: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1452: unless ($reset) {
1453: push(@parts_to_hide,$id);
1454: last;
1455: }
1456: }
1457: }
1458: }
1459: }
1460: return @parts_to_hide;
1461: }
1462:
1463: =pod
1464:
1.435 jms 1465: item store_aggregates()
1466:
1467: Sends hash of values to be incremented in nohist_resourcetracker.db
1468: for the course. Increments total number of attempts, unique students
1469: and corrects for each part for an instance of a problem, as appropriate.
1470:
1471: =cut
1472:
1.285 raeburn 1473: sub store_aggregates {
1474: my ($symb,$courseid) = @_;
1.479 raeburn 1475: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1476: my @parts;
1.288 albertel 1477: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1478: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1479: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1480: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1481: push(@parts, $1);
1.285 raeburn 1482: }
1483: }
1.286 albertel 1484: foreach my $part (@parts) {
1.470 raeburn 1485: if ($env{'request.role'} =~/^st/) {
1486: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1487: eq 'APPROX_ANS' ||
1488: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1489: eq 'EXACT_ANS') {
1490: $aggregate{$symb."\0".$part."\0correct"} = 1;
1491: }
1492: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1493: $aggregate{$symb."\0".$part."\0users"} = 1;
1494: } else {
1495: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1496: if ($last_reset) {
1497: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1498: $aggregate{$symb."\0".$part."\0users"} = 1;
1499: }
1500: }
1501: }
1502: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1503: }
1.470 raeburn 1504: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1505: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1506: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1507: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1508: $randtrycounter{$symb."\0".$part} = 1;
1509: } else {
1510: $anoncounter{$symb."\0".$part} = 1;
1511: }
1.470 raeburn 1512: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1513: if ($needsrelease) {
1514: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1515: if ($curr_required eq '') {
1.471 raeburn 1516: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1517: } else {
1518: my ($currmajor,$currminor) = split(/\./,$curr_required);
1519: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1520: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1521: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1522: }
1.292 raeburn 1523: }
1524: }
1.285 raeburn 1525: }
1526: }
1.512.2.9 raeburn 1527: if (keys(%aggregate) > 0) {
1.289 albertel 1528: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1529: $cdomain,$cname);
1530: }
1.472 raeburn 1531: if (keys(%anoncounter) > 0) {
1.481 raeburn 1532: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1533: $cdomain,$cname);
1.472 raeburn 1534: }
1.479 raeburn 1535: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1536: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1537: $cdomain,$cname);
1.479 raeburn 1538: }
1.292 raeburn 1539: }
1.289 albertel 1540:
1.65 albertel 1541: sub checkout_msg {
1.211 albertel 1542: my %lt=&Apache::lonlocal::texthash(
1543: 'resource'=>'The resource needs to be checked out',
1544: '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.',
1545: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1546: 'checkout'=>'Check out Exam for Viewing',
1547: 'checkout?'=>'Check out Exam?');
1.352 albertel 1548: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1549: return (<<ENDCHECKOUT);
1.211 albertel 1550: <h2>$lt{'resource'}</h2>
1551: <p>$lt{'id_expln'}</p>
1.449 bisitz 1552: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1553: <form name="checkout" method="post" action="$uri">
1.91 albertel 1554: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1555: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1556: </form>
1557: ENDCHECKOUT
1558: }
1559:
1.252 albertel 1560: sub firstaccess_msg {
1.253 albertel 1561: my ($time,$symb)=@_;
1.414 albertel 1562: my $result;
1563: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1564: if ($interval[1] eq 'map') {
1565: my ($map)=&Apache::lonnet::decode_symb($symb);
1566: my $foldertitle=&Apache::lonnet::gettitle($map);
1567:
1568: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1569: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1570: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1571: ,$foldertitle,$time)."</p>";
1.414 albertel 1572: } elsif ($interval[1] eq 'course') {
1573: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1574: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1575: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1576: ,$course,$time)."</p>";
1.414 albertel 1577: } else {
1578: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1579: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1580: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1581: ,$title,$time)."</p>";
1.414 albertel 1582: }
1.352 albertel 1583: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1584: my $buttontext = &mt('Show Resource');
1585: my $timertext = &mt('Start Timer?');
1.512.2.24 raeburn 1586: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1587: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1588: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1589: <input type="hidden" name="markaccess" value="yes" />
1.512.2.24 raeburn 1590: <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1591: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1592: </form>
1593: ENDCHECKOUT
1.414 albertel 1594: return $result;
1.252 albertel 1595: }
1596:
1.204 albertel 1597: sub init_problem_globals {
1598: my ($type)=@_;
1599: #initialize globals
1.308 foxr 1600: # For problems, we start out in part 0 (outside a <part> tag).
1601: # and part 0 is used to describe the main body of the <problem>
1602: #
1.204 albertel 1603: if ($type eq 'problem') {
1604: $Apache::inputtags::part='0';
1605: @Apache::inputtags::partlist=('0');
1.405 albertel 1606: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1607: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1608:
1.266 albertel 1609: } elsif ($type eq 'library') {
1.204 albertel 1610: $Apache::inputtags::part='';
1611: @Apache::inputtags::partlist=();
1.405 albertel 1612: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1613: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1614:
1.304 albertel 1615: } elsif ($type eq 'Task') {
1616: $Apache::inputtags::part='0';
1617: @Apache::inputtags::partlist=('0');
1.405 albertel 1618: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1619: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1620: }
1.477 www 1621: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1622: @Apache::inputtags::responselist = ();
1623: @Apache::inputtags::importlist = ();
1624: @Apache::inputtags::previous=();
1625: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1626: $Apache::inputtags::leniency='';
1.204 albertel 1627: $Apache::structuretags::printanswer='No';
1628: @Apache::structuretags::whileconds=();
1629: @Apache::structuretags::whilebody=();
1630: @Apache::structuretags::whileline=();
1631: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1632: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1633: undef($Apache::lonhomework::name);
1.358 albertel 1634: undef($Apache::lonhomework::default_type);
1635: undef($Apache::lonhomework::type);
1.204 albertel 1636: }
1637:
1638: sub reset_problem_globals {
1639: my ($type)=@_;
1640: undef(%Apache::lonhomework::history);
1641: undef(%Apache::lonhomework::results);
1642: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1643: undef($Apache::inputtags::leniency);
1.498 raeburn 1644: if ($type eq 'Task') {
1645: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1646: } elsif ($type eq 'problem') {
1647: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1648: }
1.208 albertel 1649: #don't undef this, lonhomework.pm takes care of this, we use this to
1650: #detect if we try to do 2 problems in one file
1651: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1652: undef($Apache::lonhomework::name);
1.358 albertel 1653: undef($Apache::lonhomework::default_type);
1654: undef($Apache::lonhomework::type);
1655: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1656: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1657: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1658: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1659: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1660: }
1661:
1.241 albertel 1662: sub set_problem_state {
1.240 albertel 1663: my ($part)=@_;
1.284 albertel 1664: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1665: $Apache::lonhomework::history{"resource.$part.solved"}=
1666: 'correct_by_student';
1667: }
1668: }
1669:
1.241 albertel 1670: sub get_problem_status {
1671: my ($part)=@_;
1.267 albertel 1672: my $problem_status;
1.284 albertel 1673: if ($env{'request.state'} eq 'construct' &&
1674: defined($env{'form.problemstatus'})) {
1675: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1676: } else {
1677: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1678: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1679: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1680: }
1681: return $problem_status;
1682: }
1683:
1.9 albertel 1684: sub start_problem {
1.326 albertel 1685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1686:
1.311 foxr 1687: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1688: if (!$Apache::lonxml::metamode) {
1689: &Apache::lonxml::startredirection();
1690: }
1.311 foxr 1691:
1.308 foxr 1692: # Problems don't nest and we don't allow more than one <problem> in
1693: # a .problem file.
1694: #
1.184 albertel 1695: if ( $Apache::inputtags::part ne '' ||
1696: $Apache::lonhomework::parsing_a_problem) {
1697: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1698: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1699: return '';
1700: }
1.184 albertel 1701:
1702: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1703: &init_problem_globals('problem');
1.166 albertel 1704:
1.284 albertel 1705: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1706: $Apache::lonhomework::scantronmode=1;
1707: }
1.161 albertel 1708:
1.159 albertel 1709: if ($target ne 'analyze') {
1.415 raeburn 1710: my $type = &Apache::lonnet::EXT('resource.0.type');
1711: $Apache::lonhomework::type=$type;
1.284 albertel 1712: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1713: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1714: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1715: }
1.332 albertel 1716: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1717: }
1.164 albertel 1718: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1719: my $uri=$env{'request.uri'};
1.159 albertel 1720: if ($uri=~/\.(\w+)$/) {
1721: $Apache::lonhomework::type=$1;
1722: &Apache::lonxml::debug("Using type of $1");
1723: } else {
1724: $Apache::lonhomework::type='problem';
1725: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1726: }
1.87 albertel 1727: }
1.301 albertel 1728: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1729:
1.363 albertel 1730: &initialize_storage();
1.389 albertel 1731: if ($target ne 'analyze'
1732: && $env{'request.state'} eq 'construct') {
1733: &set_problem_state('0');
1734: }
1735:
1.366 albertel 1736: if ($target eq 'web') {
1737: &Apache::lonxml::debug(" grading history ");
1738: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1739: }
1.363 albertel 1740:
1.159 albertel 1741: #added vars to the scripting enviroment
1.213 albertel 1742: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1743: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1744: &Apache::run::run($expression,$safeeval);
1.159 albertel 1745: my $status;
1746: my $accessmsg;
1.508 raeburn 1747: my $resource_due;
1.159 albertel 1748:
1.343 albertel 1749: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1750: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1751:
1752: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1753: $target eq 'tex') {
1754: if ($env{'form.markaccess'}) {
1755: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.24.2. (raeburn 1756:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1757:): my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.512.2.16 raeburn 1758: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1759: $firstaccres = $is_set;
1760: }
1.506 raeburn 1761: }
1762: }
1763:
1.354 albertel 1764: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1765: || $target eq 'edit') {
1.512.2.9 raeburn 1766: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1767: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1768: $name);
1.512.2.24.2. (raeburn 1769:): } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1770:): ($target eq 'answer')) {
1.512.2.9 raeburn 1771: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1772: if ($symb ne '') {
1773: my $navmap = Apache::lonnavmaps::navmap->new();
1774: if (ref($navmap)) {
1775: my $res = $navmap->getBySymb($symb);
1776: if (ref($res)) {
1777: $probpartlist = $res->parts();
1778: }
1.512.2.9 raeburn 1779: }
1780: }
1.350 albertel 1781: }
1782:
1.512.2.24.2. (raeburn 1783:): if (($target eq 'web') && ($env{'request.user_in_effect'})) {
1784:): &Apache::lonxml::get_all_text("/problem",$parser,$style);
1785:): return $result;
1786:): }
1787:):
1788:): if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1789:): $target eq 'tex') {
1790:):
1791:): my ($symb)= &Apache::lonnet::whichuser();
1792:): ($status,$accessmsg,$slot_name,$slot) =
1793:): &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1794:): push (@Apache::inputtags::status,$status);
1795:): }
1796:):
1.284 albertel 1797: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1798:
1.479 raeburn 1799: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1800: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1801: $target eq 'tex') {
1.479 raeburn 1802:
1.512.2.22 raeburn 1803: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1804: #handle rand seed in construction space
1.512.2.22 raeburn 1805: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1806: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1807: if ($partorder ne '') {
1808: @{$probpartlist} = split(/,/,$partorder);
1809: }
1810: }
1.512.2.9 raeburn 1811: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1812: if (($target eq 'grade') && &Apache::response::submitted()) {
1813: if ($Apache::lonhomework::type eq 'randomizetry') {
1814: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1815: } else {
1816: my @parts;
1817: if (ref($probpartlist) eq 'ARRAY') {
1818: @parts = @{$probpartlist};
1819: }
1820: unless (@parts) {
1821: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1822: }
1823: }
1824: }
1.479 raeburn 1825:
1.333 albertel 1826: if ($env{'request.state'} ne "construct" &&
1827: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1828: my $rndseedval = $rndseed;
1829: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1830: $rndseedval = $env{'form.rndseed'};
1831: }
1.162 albertel 1832: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1833: $rndseedval.'" />'.
1.462 raeburn 1834: '<input type="submit" name="resetdata"
1835: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1836: if (exists($env{'form.username'})) {
1837: $form_tag_start.=
1.164 albertel 1838: '<input type="hidden" name="username"
1.284 albertel 1839: value="'.$env{'form.username'}.'" />';
1.334 albertel 1840: }
1.462 raeburn 1841: if ($env{'request.role.adv'}) {
1842: $form_tag_start.= ' <label class="LC_nobreak">'
1843: .'<input type="checkbox" name="showallfoils"';
1844: if (defined($env{'form.showallfoils'})) {
1845: $form_tag_start.=' checked="checked"';
1846: }
1847: $form_tag_start.= ' /> '
1848: .&mt('Show All Foils')
1849: .'</label>';
1850: }
1.417 www 1851: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1852: $form_tag_start.=&practice_problem_header();
1.417 www 1853: }
1.462 raeburn 1854: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1855: }
1856: if (($env{'request.state'} ne "construct") &&
1857: ($Apache::lonhomework::type eq 'randomizetry') &&
1858: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1859: my @parts;
1860: if (ref($probpartlist) eq 'ARRAY') {
1861: @parts = @{$probpartlist};
1862: }
1863: unless (@parts) {
1864: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1865: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1866: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1867: }
1.479 raeburn 1868: }
1.324 albertel 1869:
1.159 albertel 1870: my $expression='$external::datestatus="'.$status.'";';
1871: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1872: &Apache::run::run($expression,$safeeval);
1873: &Apache::lonxml::debug("Got $status");
1.324 albertel 1874:
1.159 albertel 1875: if (( $status eq 'CLOSED' ) ||
1876: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1877: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1878: ( $status eq 'BANNED') ||
1.216 albertel 1879: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1880: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1881: ( $status eq 'NOTRESERVABLE') ||
1882: ( $status eq 'RESERVABLE') ||
1883: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1884: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1885: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1886: $style);
1.159 albertel 1887: if ( $target eq "web" ) {
1.343 albertel 1888: my $msg;
1.159 albertel 1889: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1890: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1891: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1892: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1893: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1894: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1895: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1896: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1897: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1898: }
1.216 albertel 1899: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1900: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1901: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1902: $msg.=&checkout_msg();
1.252 albertel 1903: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1904: if ($firstaccres) {
1905: $msg .= '<p class="LC_error">'.
1906: &mt('A problem occurred when trying to start the timer.').'</p>';
1907: }
1.253 albertel 1908: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1909: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1910: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1911: } elsif ($status eq 'RESERVABLE') {
1912: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1913: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1914: '<br />'.
1915: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1916: } elsif ($status eq 'RESERVABLE_LATER') {
1917: $msg.=&mt('Window to make a reservation will open [_1].',
1918: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1919: } elsif ($status eq 'NOTRESERVABLE') {
1920: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1921: }
1922: $result.=$msg.'<br />';
1923: } elsif ($target eq 'tex') {
1.332 albertel 1924: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1925: : '\begin{minipage}{\textwidth}';
1.443 foxr 1926: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1927: $startminipage.'\vskip 0 mm';
1.159 albertel 1928: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1929: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1930: } else {
1.211 albertel 1931: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1932: }
1933: }
1.324 albertel 1934: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1935: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1936: $style);
1.324 albertel 1937: if ($target eq 'web') {
1.375 albertel 1938: $result .=
1939: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1940: } elsif ($target eq 'grade') {
1941: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1942: 'problem');
1943: }
1.159 albertel 1944: } elsif ($target eq 'web') {
1.508 raeburn 1945: if ($status eq 'CAN_ANSWER') {
1946: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1947: if ($slot_name ne '') {
1948: my $checked_in =
1949: $Apache::lonhomework::history{'resource.0.checkedin'};
1950: if ($checked_in eq '') {
1951: # unproctored slot access, self checkin
1952: &Apache::bridgetask::check_in('problem',undef,undef,
1953: $slot_name);
1954: $checked_in =
1955: $Apache::lonhomework::results{"resource.0.checkedin"};
1956: }
1957: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1958: if ($slot->{'starttime'} < time()) {
1959: if (!$resource_due) {
1960: $resource_due = $slot->{'endtime'};
1961: } elsif ($slot->{'endtime'} < $resource_due) {
1962: $resource_due = $slot->{'endtime'};
1963: }
1964: }
1965: }
1966: }
1967: if ($resource_due) {
1968: my $time_left = $resource_due - time();
1969: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1970: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1971: }
1972: }
1973: }
1.368 albertel 1974: $result.="\n $form_tag_start \t".
1.227 albertel 1975: '<input type="hidden" name="submitted" value="yes" />';
1976: # create a page header and exit
1.284 albertel 1977: if ($env{'request.state'} eq "construct") {
1978: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1979: if ($Apache::lonhomework::type eq 'practice') {
1980: $result.= '<input type="submit" name="resetdata" '.
1981: 'value="'.&mt('New Problem Variation').'" />'.
1982: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1983: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1984: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1985: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1986: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1987: }
1.227 albertel 1988: }
1989: # if we are viewing someone else preserve that info
1.284 albertel 1990: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1991: foreach my $field ('symb','courseid','domain','username') {
1992: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1993: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1994: }
1.479 raeburn 1995: foreach my $field ('trial','questiontype') {
1996: if ($env{"form.grade_$field"} ne '') {
1997: $result .= '<input type="hidden" name="grade_'.$field.
1998: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1999: }
2000: }
1.159 albertel 2001: }
1.490 raeburn 2002: if ($env{'form.grade_imsexport'}) {
2003: $result = '';
2004: }
1.159 albertel 2005: } elsif ($target eq 'tex') {
1.319 foxr 2006: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2007: $result .= &select_metadata_hyphenation();
2008:
1.319 foxr 2009:
1.99 sakharuk 2010: }
1.159 albertel 2011: } elsif ($target eq 'edit') {
1.343 albertel 2012: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2013: $Apache::lonxml::warnings_error_header=
2014: &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 2015: my $temp=&Apache::edit::insertlist($target,$token);
2016: $result.=$temp;
2017: } elsif ($target eq 'modified') {
2018: $result=$token->[4];
2019: } else {
2020: # page_start returned a starting result, delete it if we don't need it
2021: $result = '';
1.99 sakharuk 2022: }
1.159 albertel 2023: return $result;
1.9 albertel 2024: }
2025:
2026: sub end_problem {
1.159 albertel 2027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2028: my $result;
1.310 foxr 2029:
1.321 albertel 2030: if (!$Apache::lonxml::metamode) {
2031: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2032: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2033: }
1.319 foxr 2034:
2035: if ($target eq 'tex') {
1.321 albertel 2036: # Figure out the front matter and replace the
2037: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2038: # this in end_problem because whether or not we display due
2039: # dates depends on whether due dates have already been
2040: # displayed in the problem parts.
2041:
1.319 foxr 2042: my $frontmatter = '';
2043: my $startminipage = '';
2044: if (not $env{'form.problem_split'}=~/yes/) {
2045: $startminipage = '\begin{minipage}{\textwidth}';
2046: }
2047: my $id = $Apache::inputtags::part;
2048: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2049: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2050: my @packages = split(/,/,$packages);
1.319 foxr 2051: my $allow_print_points = 0;
2052: foreach my $partial_key (@packages) {
2053: if ($partial_key=~m/^part_0$/) {
2054: $allow_print_points=1;
2055: }
2056: }
2057: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2058: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2059: if (lc($env{'course.'.$env{'request.course.id'}.
2060: '.disableexampointprint'}) eq 'yes') {
2061: $allow_print_points=0;
2062: }
2063: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2064: 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 2065: &clear_required_languages();
1.319 foxr 2066: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2067: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2068:
2069: # Figure out what the due date is and if we need to print
2070: # it in the problem header. We have been logging the
2071: # last due date written to file.
2072:
2073: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2074: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2075: my $duedate_text = &mt('Due date: [_1]'
2076: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2077: my $temp_file;
2078: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2079:
2080: # Figure out what the last printed due date is or set it
2081: # to the epoch if no duedates have been printed.
2082:
2083: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2084: if (-e $filename) {
2085: $temp_file = Apache::File->new($filename);
2086: my @due_file = <$temp_file>;
2087: $due_file_content = $due_file[$#due_file];
2088: chomp $due_file_content;
2089: }
2090:
2091: # We display the due date iff it is not the same as the last
2092: # duedate in problem header ($due_file_content), and
2093: # none of our parts displayed a duedate.
2094: #
2095: my $parts_with_displayduedate;
2096: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2097: $parts_with_displayduedate =
2098: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2099: } else {
2100: $parts_with_displayduedate = 0;
2101: }
2102: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2103: $temp_file = Apache::File->new('>'.$filename);
2104: print $temp_file "$duetime\n";
2105: if (not $env{'request.symb'} =~ m/\.page_/) {
2106: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2107: $frontmatter .= $begin_doc.
1.448 bisitz 2108: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2109: } else {
2110: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2111: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2112: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2113: }
1.319 foxr 2114: }
2115: } else {
1.448 bisitz 2116: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2117: }
2118: } else {
2119: if (not $env{'request.symb'} =~ m/\.page_/) {
2120: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2121: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2122: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2123: }
1.319 foxr 2124: } else {
1.381 albertel 2125: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2126: }
2127: }
2128: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1.512.2.24.2. (raeburn 2129:): } elsif ($target eq 'web') {
2130:): if ($env{'request.user_in_effect'}) {
2131:): &reset_problem_globals('problem');
2132:): $result .= &Apache::lonhtmlcommon::set_compute_end_time();
2133:): return $result;
2134:): }
1.319 foxr 2135: }
2136:
1.159 albertel 2137: my $status=$Apache::inputtags::status['-1'];
2138: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2139: $target eq 'tex') {
1.249 albertel 2140: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2141: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2142: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2143: &Apache::inputtags::grade;
1.324 albertel 2144: } elsif ($status eq 'NEEDS_CHECKIN') {
2145: # no need to grade, and don't want to hide data
1.249 albertel 2146: } else {
2147: # move any submission data to .hidden
2148: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2149: }
1.159 albertel 2150: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2151: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2152: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2153: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2154: # if part is zero, no <part>s existed, so we need show the current
2155: # grading status
2156: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2157: $result.= $gradestatus;
2158: }
2159: if (
1.284 albertel 2160: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2161: ($target eq 'answer') || ($target eq 'tex')
2162: ) {
1.490 raeburn 2163: if (($target ne 'tex') &&
2164: ($env{'form.answer_output_mode'} ne 'tex') &&
2165: (!$env{'form.grade_imsexport'})) {
1.254 www 2166: $result.="</form>";
1.159 albertel 2167: }
2168: if ($target eq 'web') {
1.507 raeburn 2169: #
2170: # Closing </body></html> not added by end_page().
2171: # Added separately at end of this routine, after added
2172: # <script></script> so document will be valid xhtml.
2173: #
2174: $result.= &Apache::loncommon::end_page({'discussion' => 1,
2175: 'notbody' => 1});
1.159 albertel 2176: } elsif ($target eq 'tex') {
1.178 sakharuk 2177: my $endminipage = '';
1.284 albertel 2178: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2179: $endminipage = '\end{minipage}';
2180: }
1.284 albertel 2181: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2182: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2183: } else {
1.262 sakharuk 2184: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2185: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2186: $result .= $endminipage.'\end{document} ';
2187: } else {
1.382 albertel 2188: $result .= $endminipage;
1.262 sakharuk 2189: }
1.159 albertel 2190: }
2191: }
2192: }
1.476 www 2193: if ($target eq 'web') {
1.512.2.21 raeburn 2194: $result.=&Apache::functionplotresponse::init_script();
2195: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2196: my ($symb) = &Apache::lonnet::whichuser();
2197: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2198: ($status eq 'CAN_ANSWER')) {
2199: unless (@Apache::inputtags::partlist > 1) {
2200: $result.= <<"ENDJS";
2201: <script type="text/javascript">
2202: // <![CDATA[
2203: \$(document).ready(function() {
2204: \$('#LC_randomizetry_header').css('display','block');
2205: });
2206: // ]]>
2207: </script>
2208: ENDJS
2209: }
2210: }
2211: }
1.476 www 2212: }
1.159 albertel 2213: if ($target eq 'grade') {
2214: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2215: &finalize_storage();
2216: }
1.284 albertel 2217: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2218: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2219: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2220: # normally we get it from above, but in CSTR
1.172 albertel 2221: # we always show answer mode too.
1.159 albertel 2222: }
2223: } elsif ($target eq 'meta') {
2224: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2225: @Apache::inputtags::response=();
1.159 albertel 2226: $result=&Apache::response::mandatory_part_meta;
2227: }
1.215 albertel 2228: $result.=&Apache::response::meta_part_order();
1.258 albertel 2229: $result.=&Apache::response::meta_response_order();
1.159 albertel 2230: } elsif ($target eq 'edit') {
2231: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2232: $result .= &problem_edit_footer();
1.320 albertel 2233: } elsif ($target eq 'modified') {
2234: $result .= $token->[2];
1.159 albertel 2235: }
1.155 albertel 2236:
1.284 albertel 2237: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2238: &Apache::inputtags::check_for_duplicate_ids();
2239: }
1.204 albertel 2240:
2241: &reset_problem_globals('problem');
1.159 albertel 2242:
1.502 foxr 2243: #
2244: # This shouild be just above the return so that the
2245: # time put in the javascript is as late as possible in the
2246: # computation:
2247: #
2248: if ($target eq 'web') {
1.512.2.24.2. (raeburn 2249:): $result .= &Apache::lonhtmlcommon::dash_to_minus_js().
2250:): &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2251: #
2252: # Closing tags delayed so any <script></script> tags
2253: # not in head can appear inside body, for valid xhtml.
2254: #
2255: $result .= "</body>\n</html>";
1.502 foxr 2256: }
1.159 albertel 2257: return $result;
1.48 albertel 2258: }
2259:
1.108 albertel 2260:
1.48 albertel 2261: sub start_library {
1.159 albertel 2262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2263: my ($result,$form_tag_start);
1.371 albertel 2264: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2265: &init_problem_globals('library');
2266: $Apache::lonhomework::type='problem';
2267: }
1.159 albertel 2268: if ($target eq 'edit') {
1.343 albertel 2269: ($result,$form_tag_start)=
2270: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2271: 'Edit');
2272: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2273: my $temp=&Apache::edit::insertlist($target,$token);
2274: $result.=$temp;
2275: } elsif ($target eq 'modified') {
2276: $result=$token->[4];
1.340 albertel 2277: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2278: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2279: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2280: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2281: ($result,$form_tag_start)=
2282: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2283: $name);
1.479 raeburn 2284: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2285: $result.=" \n $form_tag_start".
1.159 albertel 2286: '<input type="hidden" name="submitted" value="yes" />';
2287: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2288: if ($Apache::lonhomework::type eq 'practice') {
2289: $result.= '<input type="submit" name="resetdata" '.
2290: 'value="'.&mt('New Problem Variation').'" />'.
2291: &practice_problem_header().'<hr />';
2292: }
1.159 albertel 2293: }
2294: return $result;
1.48 albertel 2295: }
2296:
2297: sub end_library {
1.159 albertel 2298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2299: my $result='';
2300: if ($target eq 'edit') {
2301: $result=&problem_edit_footer();
1.371 albertel 2302: } elsif ($target eq 'web'
2303: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2304: && $env{'request.state'} eq "construct") {
1.349 albertel 2305: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2306: } elsif ($target eq 'meta') {
2307: $result.=&Apache::response::meta_response_order();
1.159 albertel 2308: }
1.371 albertel 2309: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2310: &reset_problem_globals('library');
2311: }
1.159 albertel 2312: return $result;
1.197 www 2313: }
2314:
2315: sub start_definetag {
1.326 albertel 2316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2317:
2318: my $result;
2319:
2320: my $name = $token->[2]->{'name'};
1.326 albertel 2321: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2322: if ($target eq 'web') {
2323: if ($name=~/^\//) {
2324: $result=
2325: '<br /><table class="LC_sty_end"><tr><th>'.
2326: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2327: } else {
2328: $result=
2329: '<br /><table class="LC_sty_begin"><tr><th>'.
2330: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2331: }
2332: $skip = &HTML::Entities::encode($skip, '<>&"');
2333: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2334: }
2335: return $result;
2336: }
2337:
2338: sub end_definetag {
2339: return '';
1.1 albertel 2340: }
2341:
2342: sub start_block {
1.201 albertel 2343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2344:
2345: my $result;
1.1 albertel 2346:
1.339 albertel 2347: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2348: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2349: my $code = $token->[2]->{'condition'};
1.385 albertel 2350: if (defined($code) && $code ne '') {
1.137 albertel 2351: if (!$Apache::lonxml::default_homework_loaded) {
2352: &Apache::lonxml::default_homework_load($safeeval);
2353: }
1.131 albertel 2354: $result = &Apache::run::run($code,$safeeval);
2355: &Apache::lonxml::debug("block :$code: returned :$result:");
2356: } else {
2357: $result='1';
2358: }
2359: if ( ! $result ) {
1.201 albertel 2360: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2361: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2362: }
2363: $result='';
2364: } elsif ($target eq 'edit') {
2365: $result .=&Apache::edit::tag_start($target,$token);
2366: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2367: $token,40);
2368: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2369: } elsif ($target eq 'modified') {
2370: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2371: $safeeval,'condition');
2372: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2373: }
1.131 albertel 2374: return $result;
1.1 albertel 2375: }
2376:
2377: sub end_block {
1.167 www 2378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2379: my $result;
2380: if ($target eq "edit") {
2381: $result.= &Apache::edit::tag_end($target,$token,'');
2382: }
2383: return $result;
2384: }
1.500 foxr 2385: #
2386: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2387: # ...
2388: # </languageblock>
2389: #
2390: # This declares the intent to provide content that can be rendered in the
2391: # set of languages in the include specificatino but not in the exclude
2392: # specification. If a currently preferred language is in the include list
2393: # the content in the <languageblock>...</languageblock> is rendered
2394: # If the currently preferred language is in the exclude list,
2395: # the content in the <languageblock>..></languageblock is not rendered.
2396: #
2397: # Pathalogical case handling:
2398: # - Include specified, without the preferred language but exclude specified
2399: # also without the preferred langauge results in rendering the block.
2400: # - Exclude specified without include and excluden not containing a
2401: # preferred language renders the block.
2402: # - Include and exclude both specifying the preferred language does not
2403: # render the block.
2404: # - If neither include/exclude is specified, the block gets rendered.
2405: #
2406: # This tag has no effect when target is in {edit, modified}
2407: #
1.167 www 2408: sub start_languageblock {
1.201 albertel 2409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2410:
1.500 foxr 2411: my $result = '';
1.167 www 2412:
1.339 albertel 2413: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2414: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2415: my $include = $token->[2]->{'include'};
2416: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2417: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2418:
2419: # This should not even happen, since we should at least have the server language
2420:
2421: if (!$preferred_languages[0]) {
2422: $preferred_languages[0]='en';
2423: }
2424:
2425: # Now loop over all languages in order of preference
2426:
2427: my $render;
1.398 www 2428: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2429:
2430: # If neither include/nor exlude is present the block is going
2431: # to get rendered.
2432:
1.399 www 2433: my $found=0;
1.500 foxr 2434: $render=1;
2435:
2436: # If include is specified, don't render the block
2437: # unless the preferred language is included in the set.
2438:
1.398 www 2439: if ($include) {
1.500 foxr 2440: $render=0;
1.398 www 2441: foreach my $included_language (split(/\,/,$include)) {
2442: if ($included_language eq $preferred_language) {
1.500 foxr 2443: $render=1;
1.399 www 2444: $found=1;
1.500 foxr 2445: last; # Only need to find the first.
1.398 www 2446: }
2447: }
2448: }
1.500 foxr 2449: # Do we have an exclude argument?
2450: # If so, and one of the languages matches a preferred language
2451: # inhibit rendering the block. Note that in the pathalogical case the
2452: # author has specified a preferred language in both the include and exclude
2453: # attribte exclude is preferred.
2454:
1.398 www 2455: if ($exclude) {
1.500 foxr 2456: $render=1;
1.398 www 2457: foreach my $excluded_language (split(/\,/,$exclude)) {
2458: if ($excluded_language eq $preferred_language) {
1.500 foxr 2459: $render=0;
1.399 www 2460: $found=1;
1.500 foxr 2461: last; # Only need to find the first.
1.398 www 2462: }
2463: }
2464: }
1.500 foxr 2465: if ($found) {
2466: last; # Done on any match of include or exclude.
2467: }
1.398 www 2468: }
1.500 foxr 2469: # If $render not true skip the entire block until </languageblock>
2470: #
2471:
2472: if ( ! $render ) {
1.201 albertel 2473: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2474: $style);
2475: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2476: }
1.500 foxr 2477: # If $render is true, we've not skipped the contents of the <languageglock>
2478: # and the normal loncapa processing flow will render it as a matter of course.
2479:
1.167 www 2480: } elsif ($target eq 'edit') {
2481: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2482: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2483: $token,40);
1.211 albertel 2484: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2485: $token,40);
2486: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2487: } elsif ($target eq 'modified') {
2488: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2489: $safeeval,'include',
2490: 'exclude');
1.167 www 2491: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2492: }
2493: return $result;
2494: }
2495:
2496: sub end_languageblock {
1.170 www 2497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2498: my $result;
1.201 albertel 2499: if ($target eq "edit") {
1.170 www 2500: $result.= &Apache::edit::tag_end($target,$token,'');
2501: }
2502: return $result;
2503: }
1.500 foxr 2504: # languagblock specific tags:
2505: {
2506: # For chunks of a resource that has translations, this hash contains
2507: # the translations available indexed by language name.
2508: #
2509:
2510: my %available_texts;
1.170 www 2511:
1.500 foxr 2512: # <translated> starts a block of a resource that has multiple translations.
2513: # See the <lang> tag as well.
2514: # When </translated> is encountered if there is a translation for the
2515: # currently preferred language, that is rendered inthe web/tex/webgrade
2516: # targets. Otherwise, the default text is rendered.
2517: #
2518: # Note that <lang> is only registered for the duration of the
2519: # <translated>...</translated> block
2520: #
2521: # Pathalogical case handling:
2522: # - If there is no <lang> that specifies a 'default' and there is no
2523: # translation that matches a preferred language, nothing is rendered.
2524: # - Nested <translated>...</translated> might be linguistically supported by
2525: # XML due to the stack nature of tag registration(?) however the rendered
2526: # output will be incorrect because there is only one %available_texts
2527: # has and end_translated clears it.
2528: # - Material outside of a <lang>...</lang> block within the
2529: # <translated>...<translated> block won't render either e.g.:
2530: # <translated>
2531: # The following will be in your preferred langauge:
2532: # <lang which='en'>
2533: # This section in english
2534: # </lang>
2535: # <lang which='sgeiso'>
2536: # Hier es ist auf Deutsch.
2537: # </lang>
2538: # <lang which='sfriso'>
2539: # En Francais
2540: # </lang>
2541: # </translated>
2542: #
2543: # The introductory text prior to the first <lang> tag is not rendered.
2544: #
1.397 albertel 2545: sub start_translated {
2546: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2547: &Apache::lonxml::register('Apache::structuretags',('lang'));
2548: undef(%available_texts);
2549: }
2550:
2551: sub end_translated {
2552: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2553: my $result;
2554: #show the translation on viewable targets
2555: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2556: # or non-viewable targets, if it's embedded in something that
2557: # wants the output
2558: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2559: && &Apache::lonxml::in_redirection() ) ) {
2560: my @possibilities = keys(%available_texts);
2561: my $which =
2562: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2563: if ($target eq 'tex') {
2564: $result = &select_hyphenation($which);
2565: }
2566: $result .= $available_texts{$which};
2567: if ($target eq 'tex') {
2568: $result .= &select_metadata_hyphenation(); # Restore original language.
2569: }
1.397 albertel 2570: }
2571: undef(%available_texts);
2572: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2573: return $result;
2574: }
2575:
1.500 foxr 2576: # <lang [which='language-name'] [other='lang1,lang2...']>
2577: # Specifies that the block contained within it is a translation
2578: # for a specific language specified by the 'which' attribute. The
2579: # 'other' attribute can be used by itself or in conjunction with
2580: # which to specify this tag _may_ be used as a translation for some
2581: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2582: # specifying that the block provides a translation for US (primary)
2583: # Canadian, Australian and UK Englush.
2584: #
2585: # Comment: this seems a bit silly why not just support a list of languages
2586: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2587: #
2588: # Effect:
2589: # The material within the <lang>..</lang> block is stored in the
2590: # specified set of $available_texts hash entries, the appropriate one
2591: # is selected at </translated> time.
2592: #
2593: # Pathalogical case handling:
2594: # If a language occurs multiple times within a <translated> block,
2595: # only the last one is rendered e.g.:
2596: #
2597: # <translated>
2598: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2599: # Red green color blindness is quite common affecting about 7.8% of
2600: # the male population, but onloy about .65% of the female population.
2601: # </lang>
2602: # Red green colour blindness is quite common affecting about 7.8% of
2603: # the male population, but onloy about .65% of the female population.
2604: # <lang which='seniso', other='senisoCA,senisoAU'>
2605: # </translated>
2606: #
2607: # renders the correct spelling of color (colour) for people who have specified
2608: # a preferred language that is one of the British Commonwealth languages
2609: # even though those are also listed as valid selections for the US english
2610: # <lang> block.
2611: #
1.397 albertel 2612: sub start_lang {
2613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2614: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2615: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2616: &Apache::lonxml::startredirection();
2617: }
2618: return '';
2619: }
2620:
2621: sub end_lang {
2622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2623: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2624: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2625: my $result = &Apache::lonxml::endredirection();
2626: my $which = &Apache::lonxml::get_param('which',$parstack,
2627: $safeeval);
1.431 raeburn 2628: if ($which=~/\w/) {
2629: $available_texts{$which} = $result;
2630: }
2631: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2632: $safeeval);
2633: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2634: if ($language=~/\w/) {
2635: $available_texts{$language} = $result;
2636: }
1.427 bisitz 2637: }
2638:
1.397 albertel 2639: }
2640: return '';
2641: }
1.500 foxr 2642: } # end langauge block specific tags.
2643:
1.397 albertel 2644:
1.170 www 2645: sub start_instructorcomment {
1.201 albertel 2646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2647:
2648: my $result;
2649:
1.339 albertel 2650: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2651: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2652: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2653: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2654: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2655: $parser,$style);
1.170 www 2656: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2657: }
2658: $result='';
2659: } elsif ($target eq 'edit') {
2660: $result .=&Apache::edit::tag_start($target,$token);
2661: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2662: }
2663: return $result;
2664: }
2665:
2666: sub end_instructorcomment {
1.159 albertel 2667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2668: my $result;
2669: if ($target eq "edit") {
2670: $result.= &Apache::edit::tag_end($target,$token,'');
2671: }
2672: return $result;
1.4 tsai 2673: }
2674:
2675: sub start_while {
1.326 albertel 2676: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2677:
1.160 albertel 2678: my $result;
1.339 albertel 2679: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2680: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2681: my $code = $token->[2]->{'condition'};
1.4 tsai 2682:
1.160 albertel 2683: push( @Apache::structuretags::whileconds, $code);
2684: if (!$Apache::lonxml::default_homework_loaded) {
2685: &Apache::lonxml::default_homework_load($safeeval);
2686: }
2687: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2688: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2689: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2690: push( @Apache::structuretags::whileline, $token->[5]);
2691: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2692: if ( $result ) {
2693: &Apache::lonxml::newparser($parser,\$bodytext);
2694: }
2695: } elsif ($target eq 'edit') {
2696: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2697: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2698: $token,40);
2699: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2700: } elsif ($target eq 'modified') {
2701: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2702: $safeeval,'condition');
2703: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2704: }
1.160 albertel 2705: return $result;
1.4 tsai 2706: }
2707:
2708: sub end_while {
1.159 albertel 2709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2710: my $result;
2711:
1.339 albertel 2712: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2713: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2714: my $code = pop(@Apache::structuretags::whileconds);
2715: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2716: my $line = pop(@Apache::structuretags::whileline);
2717: my $return = &Apache::run::run($code,$safeeval);
2718: my $starttime=time;
2719: my $error=0;
2720: while ($return) {
2721: if (time-$starttime >
2722: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2723: $return = 0; $error=1; next;
1.161 albertel 2724: }
2725: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2726: if ($target eq 'grade' || $target eq 'answer' ||
2727: $target eq 'analyze') {
2728: # grade/answer/analyze should produce no output but if we
2729: # are redirecting, the redirecter should know what to do
2730: # with the output
2731: if (!$Apache::lonxml::redirection) { undef($result); }
2732: }
1.161 albertel 2733: $return = &Apache::run::run($code,$safeeval);
2734: }
1.512.2.5 raeburn 2735: if ($error) {
2736: &Apache::lonxml::error(
2737: '<pre>'
2738: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2739: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2740: .&mt('This occurred while running <while> on line [_1].',
2741: $line)
2742: .'</pre>');
2743: }
1.160 albertel 2744: } elsif ($target eq "edit") {
2745: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2746: }
1.160 albertel 2747: return $result;
1.1 albertel 2748: }
1.6 tsai 2749:
1.160 albertel 2750: # <randomlist show="1">
1.6 tsai 2751: # <tag1>..</tag1>
2752: # <tag2>..</tag2>
2753: # <tag3>..</tag3>
1.160 albertel 2754: # ...
1.6 tsai 2755: # </randomlist>
2756: sub start_randomlist {
1.326 albertel 2757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2758: my $result;
1.339 albertel 2759: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2760: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2761: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2762: my $b_parser= HTML::LCParser->new(\$body);
2763: $b_parser->xml_mode(1);
2764: $b_parser->marked_sections(1);
1.159 albertel 2765: my $b_tok;
2766: my @randomlist;
2767: my $list_item;
2768: while($b_tok = $b_parser->get_token() ) {
2769: if($b_tok->[0] eq 'S') { # start tag
2770: # get content of the tag until matching end tag
2771: # get all text upto the matching tag
2772: # and push the content into @randomlist
2773: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2774: $b_parser);
2775: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2776: push(@randomlist,$list_item);
2777: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2778: # $list_item</b>";
2779: }
2780: if($b_tok->[0] eq 'T') { # text
2781: # what to do with text in between tags?
2782: # print "<b>TEXT $b_tok->[1]</b><br />";
2783: }
2784: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2785: # print "<b>END-TAG $b_tok->[1]</b><br />";
2786: # }
2787: }
1.303 albertel 2788: if (@randomlist) {
2789: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2790: if ($env{'form.code_for_randomlist'}) {
2791: &Apache::structuretags::shuffle(\@idx_arr,$target);
2792: undef($env{'form.code_for_randomlist'});
2793: } else {
2794: &Apache::structuretags::shuffle(\@idx_arr);
2795: }
1.303 albertel 2796: my $bodytext = '';
2797: my $show=$#randomlist;
2798: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2799: $showarg--;
2800: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2801: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2802: my @currlist;
2803: my $part = $Apache::inputtags::part;
2804: if ($part ne '') {
2805: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2806: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2807: if (!(grep(/^\Q$part\E$/,@currlist))) {
2808: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2809: }
2810: } else {
2811: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2812: }
2813: }
2814: }
1.512.2.9 raeburn 2815: for my $i (0 .. $show) {
2816: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2817: }
2818: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2819: }
2820: } elsif ($target eq 'edit' ) {
2821: $result .=&Apache::edit::tag_start($target,$token);
2822: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2823: $token,5);
2824: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2825: } elsif ($target eq 'modified' ) {
2826: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2827: $safeeval,'show');
2828: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2829: }
2830: return $result;
1.7 tsai 2831: }
2832:
2833: sub shuffle {
1.512.2.14 raeburn 2834: my ($a,$target) = @_;
1.7 tsai 2835: my $i;
1.303 albertel 2836: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2837: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2838: for($i=@$a;--$i;) {
2839: my $j=int(&Math::Random::random_uniform() * ($i+1));
2840: next if $i == $j;
2841: @$a[$i,$j] = @$a[$j,$i];
2842: }
1.251 albertel 2843: &Apache::response::poprandomnumber();
1.7 tsai 2844: }
1.6 tsai 2845: }
2846:
2847: sub end_randomlist {
1.159 albertel 2848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2849: my $result;
2850: if ($target eq 'edit' ) {
2851: $result=&Apache::edit::tag_end($target,$token,
2852: 'End Randomly Parsed Block');
2853: }
2854: return $result;
1.6 tsai 2855: }
2856:
1.283 albertel 2857: sub ordered_show_check {
2858: my $last_part=$Apache::inputtags::partlist[-2];
2859: my $in_order=
2860: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2861: my $in_order_show=1;
2862: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2863: $in_order_show=&Apache::response::check_status($last_part);
2864: }
2865: return $in_order_show;
2866: }
2867:
1.469 www 2868:
2869: sub start_startpartmarker {
2870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2871: my $result='';
2872: if ($target eq 'edit') {
2873: $result=&Apache::edit::tag_start($target,$token);
2874: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2875: $result.=&Apache::edit::end_table();
2876:
2877: }
2878: return $result;
2879: }
2880:
2881: sub end_startpartmarker {
2882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2883: my @result;
2884: if ($target eq 'edit') { $result[1]='no'; }
2885: return @result;
2886: }
2887:
2888: sub start_endpartmarker {
2889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2890: my $result='';
2891: if ($target eq 'edit') {
2892: $result=&Apache::edit::tag_start($target,$token);
2893: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2894: $result.=&Apache::edit::end_table();
2895:
2896: }
2897: return $result;
2898: }
2899:
2900: sub end_endpartmarker {
2901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2902: my @result;
2903: if ($target eq 'edit') { $result[1]='no'; }
2904: return @result;
2905: }
2906:
2907:
2908:
2909:
2910:
1.11 albertel 2911: sub start_part {
1.326 albertel 2912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2913: if (!$Apache::lonxml::metamode) {
2914: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2915: # duedates.
2916: }
1.159 albertel 2917: my $result='';
1.386 albertel 2918: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2919: $Apache::inputtags::part=$id;
1.177 albertel 2920: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2921: $Apache::inputtags::leniency='';
1.177 albertel 2922: @Apache::inputtags::response=();
1.159 albertel 2923: @Apache::inputtags::previous=();
2924: @Apache::inputtags::previous_version=();
1.405 albertel 2925: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2926: &Apache::response::reset_params();
2927:
1.159 albertel 2928: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2929: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2930: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2931: if ($Apache::lonhomework::type eq 'randomizetry') {
2932: my $rndseed=&setup_rndseed($safeeval,$target);
2933: if (($target eq 'grade') && &Apache::response::submitted()) {
2934: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2935: }
2936: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2937: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2938: }
1.283 albertel 2939: my $in_order_show=&ordered_show_check();
1.214 albertel 2940: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2941: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2942: &Apache::run::run($expression,$safeeval);
1.159 albertel 2943:
2944: if ($target eq 'meta') {
1.224 www 2945: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2946: return &Apache::response::mandatory_part_meta.
2947: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2948: } elsif ($target eq 'web' || $target eq 'grade' ||
2949: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2950: if ($hidden || !$in_order_show) {
1.326 albertel 2951: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2952: } else {
2953: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2954: push (@Apache::inputtags::status,$status);
2955: my $expression='$external::datestatus="'.$status.'";';
2956: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2957: &Apache::run::run($expression,$safeeval);
1.284 albertel 2958: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2959: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2960: }
1.216 albertel 2961: if (( $status eq 'CLOSED' ) ||
2962: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2963: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2964: ( $status eq 'BANNED') ||
2965: ( $status eq 'UNAVAILABLE') ||
2966: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2967: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2968: $style);
1.159 albertel 2969: if ( $target eq "web" ) {
1.211 albertel 2970: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2971: } elsif ( $target eq 'tex' ) {
1.284 albertel 2972: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2973: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2974: } else {
1.211 albertel 2975: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2976: }
1.159 albertel 2977: }
2978: } else {
2979: if ($target eq 'tex') {
1.284 albertel 2980: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2981: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2982: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2983: } else {
2984: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2985: }
1.195 sakharuk 2986: }
1.159 albertel 2987: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2988: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2989: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2990: my $allow_print_points = 0;
2991: foreach my $partial_key (@allkeys) {
1.230 albertel 2992: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2993: if ($1 ne '0') {$allow_print_points=1;}
2994: }
2995: }
1.275 albertel 2996: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2997: if (defined($maxtries) && $maxtries < 0) {
2998: $allow_print_points=0;
2999: }
1.302 albertel 3000: if (lc($env{'course.'.$env{'request.course.id'}.
3001: '.disableexampointprint'}) eq 'yes') {
3002: $allow_print_points=0;
3003: }
1.463 foxr 3004: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3005: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3006:
3007: }
1.233 www 3008: } elsif ($target eq 'web') {
1.479 raeburn 3009: if ($status eq 'CAN_ANSWER') {
3010: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3011: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 3012: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3013: ($Apache::lonhomework::randomizetrypart)) &&
3014: ($Apache::lonhomework::type ne 'randomizetry')) {
3015: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3016: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3017: $Apache::lonhomework::randomizetrypart = 1;
3018: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3019: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3020: }
3021: }
1.475 raeburn 3022: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3023: }
3024: }
3025: }
3026: } elsif ($target eq 'edit') {
3027: $result.=&Apache::edit::tag_start($target,$token);
3028: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3029: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3030: ' '.
3031: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3032: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3033: } elsif ($target eq 'modified') {
3034: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3035: $safeeval,'id','display');
1.159 albertel 3036: if ($constructtag) {
1.225 albertel 3037: #limiting ids to only letters numbers, and space
1.224 www 3038: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3039: $result = &Apache::edit::rebuild_tag($token);
3040: }
3041: }
3042: return $result;
1.11 albertel 3043: }
3044:
3045: sub end_part {
1.159 albertel 3046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3047: &Apache::lonxml::debug("in end_part $target ");
3048: my $status=$Apache::inputtags::status['-1'];
3049: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3050: my $in_order_show=&ordered_show_check();
1.321 albertel 3051: my $result;
3052: if (!$Apache::lonxml::metamode) {
3053: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3054: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3055: }
1.312 albertel 3056: if ($target eq 'grade') {
1.249 albertel 3057: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3058: !$hidden && $in_order_show) {
1.311 foxr 3059: $result.=&Apache::inputtags::grade;
1.249 albertel 3060: } else {
3061: # move any submission data to .hidden
3062: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3063: }
1.283 albertel 3064: } elsif (($target eq 'web' || $target eq 'tex') &&
3065: !$hidden && $in_order_show) {
1.159 albertel 3066: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3067: $target);
1.490 raeburn 3068: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3069: ($env{'form.grade_imsexport'})) {
1.212 albertel 3070: $gradestatus='';
3071: }
1.311 foxr 3072: $result.=$gradestatus;
1.512.2.24.2. (raeburn 3073:): if ($$tagstack[-2] eq 'td' and $target eq 'tex') {
3074:): if (not $env{'form.problem_split'}=~/yes/) {
3075:): $result.='\end{minipage}';
3076:): }
3077:): }
1.181 albertel 3078: } elsif ($target eq 'edit') {
1.311 foxr 3079: $result.=&Apache::edit::end_table();
1.322 albertel 3080: } elsif ($target eq 'modified') {
3081: $result .= $token->[2];
1.159 albertel 3082: }
3083: pop @Apache::inputtags::status;
3084: $Apache::inputtags::part='';
1.512.2.10 raeburn 3085: $Apache::inputtags::leniency='';
1.295 albertel 3086: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3087: return $result;
1.11 albertel 3088: }
1.1 albertel 3089:
1.25 albertel 3090: sub start_preduedate {
1.326 albertel 3091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3092: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3093: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3094: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3095: if (!$Apache::lonhomework::scantronmode &&
3096: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3097: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3098: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3099: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3100: }
1.24 albertel 3101: }
1.159 albertel 3102: return '';
1.24 albertel 3103: }
3104:
1.25 albertel 3105: sub end_preduedate {
1.159 albertel 3106: return '';
1.24 albertel 3107: }
3108:
1.369 foxr 3109: # In all the modes where <postanswerdate> text is
3110: # displayable, all we do is eat up the text between the start/stop
3111: # tags if the conditions are not right to display it.
1.25 albertel 3112: sub start_postanswerdate {
1.326 albertel 3113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3114: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3115: &Apache::lonnet::allowed('pav',
3116: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3117: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3118: $target eq 'tex' ) {
1.300 albertel 3119: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3120: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3121: (($target eq 'tex') && !$pav)) {
1.326 albertel 3122: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3123: }
3124: }
3125: return '';
1.24 albertel 3126: }
3127:
1.25 albertel 3128: sub end_postanswerdate {
1.159 albertel 3129: return '';
1.24 albertel 3130: }
3131:
1.25 albertel 3132: sub start_notsolved {
1.326 albertel 3133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3134: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3135: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3136: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3137: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3138: if ($gradestatus =~ /^correct/ &&
3139: &Apache::response::show_answer()) {
1.159 albertel 3140: &Apache::lonxml::debug("skipping");
1.326 albertel 3141: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3142: }
1.24 albertel 3143: }
1.159 albertel 3144: return '';
1.24 albertel 3145: }
3146:
1.25 albertel 3147: sub end_notsolved {
1.159 albertel 3148: return '';
1.24 albertel 3149: }
3150:
3151: sub start_solved {
1.326 albertel 3152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3153: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3154: $target eq 'tex') {
3155: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3156: if ($gradestatus !~ /^correct/ ||
3157: !&Apache::response::show_answer()) {
1.326 albertel 3158: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3159: }
1.24 albertel 3160: }
1.159 albertel 3161: return '';
1.24 albertel 3162: }
3163:
3164: sub end_solved {
1.248 albertel 3165: return '';
3166: }
3167:
3168: sub start_problemtype {
1.326 albertel 3169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3170: my $result;
1.339 albertel 3171: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3172: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3173: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3174: if (!defined($mode)) { $mode='show'; }
3175: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3176: my $found=0;
3177: foreach my $type (split(',',$for)) {
3178: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3179: }
3180: if ($mode eq 'show' && !$found) {
1.326 albertel 3181: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3182: }
3183: if ($mode eq 'hide' && $found) {
1.326 albertel 3184: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3185: }
3186: } elsif ($target eq 'edit') {
3187: $result .=&Apache::edit::tag_start($target,$token);
3188: $result.=&Apache::edit::select_arg('Mode:','mode',
3189: [['show','Show'],
3190: ['hide','Hide']]
3191: ,$token);
3192: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 3193: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 3194: ['survey','Survey'],
1.465 raeburn 3195: ['surveycred','Survey (with credit)'],
3196: ['anonsurvey','Anonymous Survey'],
3197: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3198: ['problem','Homework Problem'],
1.479 raeburn 3199: ['practice','Practice Problem'],
3200: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3201: ,$token);
3202: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3203: } elsif ($target eq 'modified') {
3204: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3205: $safeeval,'mode','for');
3206: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3207: }
3208: return $result;
3209: }
3210:
3211: sub end_problemtype {
1.159 albertel 3212: return '';
1.24 albertel 3213: }
1.34 albertel 3214:
3215: sub start_startouttext {
1.159 albertel 3216: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3217: my @result=(''.'');
3218: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3219:
3220: my $nesting =
3221: &Apache::lonxml::set_state('outtext',
3222: &Apache::lonxml::get_state('outtext')+1);
3223: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3224: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3225: }
1.159 albertel 3226: return (@result);
1.34 albertel 3227: }
1.159 albertel 3228:
1.34 albertel 3229: sub end_startouttext {
1.326 albertel 3230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3231: my $result='';
3232: my $text='';
3233: if ($target eq 'edit') {
1.424 foxr 3234: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3235: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3236: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3237: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3238: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3239: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3240: .'</span></td>'
1.512.2.12 raeburn 3241: .'<td><span id="math_'.$areaid.'">';
3242: if ($env{'environment.nocodemirror'}) {
3243: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3244: } else {
3245: $result.=' ';
3246: }
3247: $result.='</span></td>'
1.474 raeburn 3248: .'<td>'
3249: .&Apache::edit::insertlist($target,$token)
3250: .'</td>'
1.512.2.5 raeburn 3251: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3252: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3253: &Apache::edit::end_row().
1.362 albertel 3254: &Apache::edit::start_spanning_row()."\n".
1.255 www 3255: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3256: }
3257: if ($target eq 'modified') {
1.219 albertel 3258: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3259: }
3260: if ($target eq 'tex') {
3261: $result .= '\noindent ';
3262: }
3263: return $result;
1.34 albertel 3264: }
1.159 albertel 3265:
1.34 albertel 3266: sub start_endouttext {
1.159 albertel 3267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3268: my $result='';
3269: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3270: if ($target eq "modified") {
3271: $result='<endouttext />'.
1.377 albertel 3272: &Apache::edit::handle_insertafter('startouttext');
3273: }
1.404 albertel 3274:
3275: my $nesting =
3276: &Apache::lonxml::set_state('outtext',
3277: &Apache::lonxml::get_state('outtext')-1);
3278: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3279: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3280: &Apache::lonxml::set_state('outtext', 0);
3281: }
1.159 albertel 3282: return $result;
1.34 albertel 3283: }
1.159 albertel 3284:
1.34 albertel 3285: sub end_endouttext {
1.159 albertel 3286: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3287: my @result=('','');
3288: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3289: return (@result);
1.34 albertel 3290: }
1.159 albertel 3291:
1.45 albertel 3292: sub delete_startouttext {
1.326 albertel 3293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3294: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3295: my $text=$$parser['-1']->get_text("/endouttext");
3296: my $ntoken=$$parser['-1']->get_token();
3297: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3298: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3299: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3300: # they did the last time round
3301: &Apache::lonxml::increasedepth($ntoken);
3302: &Apache::lonxml::decreasedepth($ntoken);
3303: return 1;
1.193 www 3304: }
3305:
3306: sub start_simpleeditbutton {
3307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3308: my $result='';
1.284 albertel 3309: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3310: ($target eq 'web') &&
1.330 albertel 3311: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3312: my $url=$env{'request.noversionuri'};
1.193 www 3313: $url=~s/\?.*$//;
1.367 albertel 3314: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3315: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3316: # $result='<p class="LC_warning">'
3317: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3318: # .&Apache::loncommon::help_open_topic('Caching')
3319: # .'</p>';
1.486 www 3320: $result.=&Apache::loncommon::head_subbox(
3321: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3322: .&Apache::lonhtmlcommon::add_item_funclist(
3323: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3324: .&mt('Edit').'</a>')
1.486 www 3325: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3326:
1.193 www 3327: }
3328: return $result;
3329: }
3330:
3331: sub end_simpleeditbutton {
3332: return '';
1.45 albertel 3333: }
1.34 albertel 3334:
1.428 raeburn 3335: sub practice_problem_header {
3336: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3337: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3338: '</span>';
3339: }
3340:
1.479 raeburn 3341: sub randomizetry_problem_header {
1.512.2.21 raeburn 3342: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3343: my ($header,$text);
3344: if ($reqtries > 1) {
3345: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3346: if (($problemstatus eq 'no') ||
3347: ($problemstatus eq 'no_feedback_ever')) {
3348: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3349: } else {
3350: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3351: }
3352: } else {
3353: $header = &mt('New Problem Variation Each Try');
3354: if (($problemstatus eq 'no') ||
3355: ($problemstatus eq 'no_feedback_ever')) {
3356: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3357:
3358: } else {
3359: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3360: }
3361: }
1.512.2.21 raeburn 3362: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3363: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3364: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3365: } else {
3366: return '<h3 class="LC_info">'.$header.'</h3>'.
3367: '<span class="LC_info">'.$text.'</span><hr />';
3368: }
1.479 raeburn 3369: }
3370:
3371: sub randomizetry_part_header {
3372: my ($problemstatus,$reqtries,$num) = @_;
3373: my ($header,$text);
3374: if ($reqtries eq 'none') {
3375: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3376: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3377: } elsif ($reqtries > 1) {
3378: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3379: if (($problemstatus eq 'no') ||
3380: ($problemstatus eq 'no_feedback_ever')) {
3381: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3382: } else {
3383: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3384: }
3385: } else {
3386: $header = &mt('New Question Variation For Each Try');
3387: if (($problemstatus eq 'no') ||
3388: ($problemstatus eq 'no_feedback_ever')) {
3389: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3390: } else {
3391: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3392: }
3393: }
3394: my $output;
3395: if ($num > 1) {
3396: $output .= '<hr />';
3397: }
3398: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3399: '<span class="LC_info">'.$text.'</span><br /><br />';
3400: return $output;
3401: }
3402:
1.1 albertel 3403: 1;
3404: __END__
1.435 jms 3405:
3406: =pod
3407:
3408: =back
3409:
3410: =cut
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