Annotation of loncom/homework/structuretags.pm, revision 1.512.2.24.2.11
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. 1(raebur 4:4): # $Id: structuretags.pm,v 1.512.2.24.2.10 2024/02/27 19:46:23 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.512.2.24.2. (raeburn 65:): use Apache::lonnavmaps;
1.267 albertel 66: use Time::HiRes qw( gettimeofday tv_interval );
1.512.2.24 raeburn 67: use HTML::Entities();
1.356 www 68: use lib '/home/httpd/lib/perl/';
69: use LONCAPA;
70:
1.78 harris41 71: BEGIN {
1.469 www 72: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 73: }
74:
1.500 foxr 75:
76: #---------------------------------------------------------------------------------
77: #
78: # This section of code deals with hyphenation management.
79: # We must do three things:
80: # - keep track fo the desired languages to alter the header.
81: # - provide hyphenation selection as needed by each language that appears in the
82: # text.
83: # - Provide the header text needed to make available the desired hyphenations.
84: #
85: #
86:
87: # Hash whose keys are the languages encountered in the document/resource.
88: #
89:
90: my %languages_required;
91: ##
92: # Given a language selection as input returns a chunk of LaTeX that
93: # selects the required hyphenator.
94: #
95: # @param language - the language being selected.
96: # @return string
97: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
98: #
99: sub select_hyphenation {
100: my $language = shift;
101:
102: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
103:
104: # If there is no latex language there's not much we can do:
105:
106: if ($language) {
107: &require_language($language);
108: my $babel_hyphenation = "\\selectlanguage{$language}";
109:
110: return $babel_hyphenation;
111: } else {
112: return '';
113: }
114: }
115: ##
116: # Selects hyphenation based on the current problem metadata.
117: # This requires that
118: # - There is a language metadata item set for the problem.
119: # - The language has a latex/babel hyphenation.
120: #
121: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
122: # this problem.
123: # @return string (possibly empty).
124: # @retval If not empty an appropriate \selectlanguage{} directive.
125: #
126: sub select_metadata_hyphenation {
127: my $uri = $Apache::lonxml::request->uri;
128: my $language = &Apache::lonnet::metadata($uri, 'language');
129: my $latex_language = &Apache::loncommon::latexhyphenation($language);
130: if ($latex_language) {
131: return '\selectlanguage{'.$latex_language."}\n";
132: }
133: return ''; # no latex hyphenation or no lang metadata.
134: }
135:
136:
137: ##
138: # Clears the set of languages required by the document being rendered.
139: #
140: sub clear_required_languages {
141: %languages_required = ();
142: }
143: ##
144: # Allows an external client of this module to register a need for a language:
145: #
146: # @param LaTeX language required:
147: #
148: sub require_language {
149: my $language = shift;
150: $languages_required{$language} = 1;
151: }
152:
153: ##
154: # Provides the header for babel that indicates the languages
155: # the document requires.
156: # @return string
157: # @retval \usepackage[lang1,lang2...]{babel}
158: # @retval '' if there are no languages_required.
159: sub languages_header {
160: my $header ='';
161: my @languages = (keys(%languages_required));
162:
163: # Only generate the header if there are languages:
164:
165: if (scalar @languages) {
166: my $language_list = join(',', (@languages));
167: $header = '\usepackage['.$language_list."]{babel}\n";
168: }
169: return $header;
170: }
171:
172: #----------------------------------------------------------------------------------
173:
1.10 albertel 174: sub start_web {
1.326 albertel 175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 176: if ($target ne 'edit' && $target ne 'modified') {
177: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
178: if ($target eq 'web' || $target eq 'webgrade') {
179: return $bodytext;
180: }
181: } elsif ($target eq "edit" ) {
182: my $bodytext =
183: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
184: my $result = &Apache::edit::tag_start($target,$token);
185: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
186: return $result;
187: } elsif ( $target eq "modified" ) {
188: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 189: }
190: return '';
1.10 albertel 191: }
192:
193: sub end_web {
1.44 ng 194: return '';
1.10 albertel 195: }
196:
197: sub start_tex {
1.326 albertel 198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 199: my $result='';
1.383 albertel 200: if ($target ne 'edit' && $target ne 'modified') {
201: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
202: if ($target eq 'tex') {
1.434 foxr 203:
204: # If inside a table, occurrences of \\ must be removed;
205: # else the table blows up.
206:
207: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
208: $bodytext =~ s/\\\\//g;
209: }
1.432 foxr 210: return $bodytext.'{}';
1.383 albertel 211: }
212: } elsif ($target eq "edit" ) {
213: my $bodytext =
214: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
215: my $result = &Apache::edit::tag_start($target,$token);
216: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
217: return $result;
218: } elsif ( $target eq "modified" ) {
219: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 220: }
1.198 sakharuk 221: return $result;;
1.10 albertel 222: }
223:
224: sub end_tex {
1.44 ng 225: return '';
1.9 albertel 226: }
227:
1.400 albertel 228: sub homework_js {
1.512.2.9 raeburn 229: my ($postsubmit,$timeout);
230: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
231: my $crstype;
232: if (&Apache::loncommon::course_type() eq 'Community') {
233: $crstype = 'community';
234: } else {
235: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
236: $crstype = 'official';
237: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
238: $crstype = 'textbook';
239: } else {
240: $crstype = 'unofficial';
241: }
242: }
243: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
244: if ($postsubmit eq '') {
245: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
246: $postsubmit = $domdefs{'postsubmit'};
247: unless ($postsubmit eq 'off') {
248: $timeout = $domdefs{$crstype.'postsubtimeout'};
249: }
250: } elsif ($postsubmit eq '0') {
251: $postsubmit = 'off';
252: } elsif ($postsubmit eq '1') {
253: $postsubmit = 'on';
254: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
255: if ($timeout eq '') {
256: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
257: $timeout = $domdefs{$crstype.'postsubtimeout'};
258: }
259: }
260: if ($timeout eq '') {
261: $timeout = 60;
262: }
263: } else {
264: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
265: $postsubmit = $domdefs{'postsubmit'};
266: unless ($postsubmit eq 'off') {
267: $timeout = 60;
268: }
269: }
270: my $jstimeout = 0;
271: if ($timeout) {
272: $jstimeout = 1000 * $timeout;
273: }
1.400 albertel 274: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 275: &Apache::loncommon::colorfuleditor_js().
1.512.2.24.2. (raeburn 276:): &Apache::lonxml::setmode_javascript().
1.512.2.9 raeburn 277: <<"JS";
1.400 albertel 278: <script type="text/javascript">
1.483 raeburn 279: // <![CDATA[
1.494 raeburn 280: function setSubmittedPart (part,prefix) {
281: if (typeof(prefix) == 'undefined') {
282: this.document.lonhomework.submitted.value="part_"+part;
283: } else {
284: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
285: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
286: this.document.lonhomework.elements[i].value="part_"+part;
287: }
288: }
289: }
1.400 albertel 290: }
291:
1.512.2.9 raeburn 292: function disableAutoComplete (id) {
293: var field = document.getElementById(id);
294: if (field != null && field != undefined){
295: if ('autocomplete' in field) {
296: field.autocomplete = "off";
297: } else {
298: field.setAttribute("autocomplete", "off");
299: }
300: }
301: }
302:
1.400 albertel 303: function image_response_click (which, e) {
304: init_geometry();
305: if (!e) { e = window.event; } //IE
306: var input_element = document.lonhomework.elements[which];
1.401 albertel 307: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 308: var token = token_element.value;
1.401 albertel 309: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 310: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
311: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
312: var click = x+':'+y;
313: input_element.value = click;
1.485 raeburn 314: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 315: }
1.512.2.9 raeburn 316:
317: var submithandled = 0;
318: var keypresshandled = 0;
319: var postsubmit = '$postsubmit';
320:
321: \$(document).ready(function(){
322: if (postsubmit != 'off') {
323: \$(document).keypress(function(event){
324: var keycode = (event.keyCode ? event.keyCode : event.which);
325: if ((keycode == '13') && (keypresshandled == 0)) {
326: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
327: keypresshandled = 1;
328: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
329: if (idsArray.length) {
330: event.preventDefault();
331: var itemsArray = idsArray[1].split(/_/);
332: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
333: \$("#"+buttonId).trigger("click");
334: }
335: }
336: }
337: });
338:
339: \$(document).delegate('form :submit', 'click', function( event ) {
340: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
341: var buttonId = this.id;
342: var timeout = $jstimeout;
343: if (submithandled == 0) {
344: submithandled = 1;
345: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
346: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 347: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 348: if (buttonId != "all_submit") {
349: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 350: }
351: if (( "#"+buttonId+"_pressed" ).length) {
352: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 353: }
354: } else {
355: \$( ".LC_status_"+buttonId ).hide();
356: }
357: \$(this.form).submit();
358: \$( ".LC_hwk_submit" ).prop( "disabled", true);
359: \$( ".LC_textline" ).prop( "readonly", "readonly");
360: event.preventDefault();
361:
362: if (timeout > 0) {
363: setTimeout(function(){
364: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 365: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
366: if (( "#"+buttonId+"_pressed" ).length) {
367: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.48 albertel 388: sub page_start {
1.345 albertel 389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
390: $extra_head)=@_;
1.159 albertel 391: my %found;
1.207 albertel 392: foreach my $taginside (@$tagstack) {
1.159 albertel 393: foreach my $taglookedfor ('html','body','form') {
394: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
395: }
396: }
397:
1.343 albertel 398: if ($target eq 'tex') {
399: return
400: &Apache::londefdef::start_html($target,$token,$tagstack,
401: $parstack,$parser,$safeeval);
402: }
403:
1.474 raeburn 404: $extra_head .= &homework_js().
405: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
406: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 407: my %textarea_args;
408: if (($env{'request.state'} ne 'construct') ||
409: ($env{'environment.nocodemirror'})) {
410: %textarea_args = (
1.474 raeburn 411: dragmath => 'math',
412: );
1.512.2.12 raeburn 413: }
1.474 raeburn 414: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 415: }
1.478 raeburn 416: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 417: my ($needs_upload,$partlist);
1.495 raeburn 418: my ($symb)= &Apache::lonnet::whichuser();
419: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 420: if ($is_task) {
1.495 raeburn 421: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 422: } else {
423: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 424: unless ($env{'request.state'} eq 'construct') {
425: my $navmap = Apache::lonnavmaps::navmap->new();
426: if (ref($navmap)) {
427: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 428: my $is_page;
429: if (ref($mapres)) {
430: $is_page = $mapres->is_page();
431: }
432: unless ($is_page) {
1.495 raeburn 433: $needs_upload = 1;
434: }
1.512.2.9 raeburn 435: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
436: my $res = $navmap->getBySymb($symb);
437: if (ref($res)) {
438: $partlist = $res->parts();
439: }
440: }
1.495 raeburn 441: }
442: }
1.493 raeburn 443: } else {
444: unless ($env{'request.state'} eq 'construct') {
445: my $navmap = Apache::lonnavmaps::navmap->new();
446: if (ref($navmap)) {
1.495 raeburn 447: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 448: my $is_page;
449: if (ref($mapres)) {
450: $is_page = $mapres->is_page();
451: }
1.512.2.9 raeburn 452: if ($is_page) {
453: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
454: my $res = $navmap->getBySymb($symb);
455: if (ref($res)) {
456: $partlist = $res->parts();
457: }
458: }
459: } else {
1.495 raeburn 460: my $res = $navmap->getBySymb($symb);
461: if (ref($res)) {
1.512.2.9 raeburn 462: $partlist = $res->parts();
1.495 raeburn 463: if (ref($partlist) eq 'ARRAY') {
464: foreach my $part (@{$partlist}) {
465: my @types = $res->responseType($part);
466: my @ids = $res->responseIds($part);
467: for (my $i=0; $i < scalar(@ids); $i++) {
468: if ($types[$i] eq 'essay') {
469: my $partid = $part.'_'.$ids[$i];
470: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
471: $needs_upload = 1;
472: last;
473: }
1.493 raeburn 474: }
475: }
476: }
1.495 raeburn 477: }
478: }
1.493 raeburn 479: }
480: }
481: }
482: }
1.495 raeburn 483: if ($needs_upload) {
1.512.2.17 raeburn 484: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
485: '<script type="text/javascript" '.
486: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 487: }
1.478 raeburn 488: }
1.425 raeburn 489:
1.344 albertel 490: my %body_args;
491: if (defined($found{'html'})) {
492: $body_args{'skip_phases'}{'head'}=1;
493: } else {
1.343 albertel 494:
1.345 albertel 495: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 496:
1.379 albertel 497: $extra_head .= &Apache::londefdef::generate_css_links();
498:
1.384 albertel 499: if ($env{'request.state'} eq 'construct') {
1.343 albertel 500: $extra_head.=&Apache::edit::js_change_detection().
501: "<script type=\"text/javascript\">\n".
502: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
503: &Apache::loncommon::browser_and_searcher_javascript().
504: "\n</script>\n";
1.512.2.9 raeburn 505: if ($target eq 'edit') {
506: $extra_head .= &Apache::edit::js_update_linknum();
507: }
1.343 albertel 508: }
1.159 albertel 509: }
1.343 albertel 510:
1.446 bisitz 511: my $pageheader = '';
1.344 albertel 512: if (defined($found{'body'})) {
513: $body_args{'skip_phases'}{'body'}=1;
514: } elsif (!defined($found{'body'})
515: && $env{'request.state'} eq 'construct') {
1.343 albertel 516: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 517: # Breadcrumbs for Authoring Space
1.450 bisitz 518: &Apache::lonhtmlcommon::clear_breadcrumbs();
519: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 520: 'text' => 'Authoring Space',
1.497 raeburn 521: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 522: });
1.460 droeschl 523: # breadcrumbs (and tools) will be created
524: # in start_page->bodytag->innerregister
525:
1.450 bisitz 526: # FIXME Where are we?
527: # &Apache::lonhtmlcommon::add_breadcrumb({
528: # 'text' => 'Problem Editing', # 'Problem Testing'
529: # 'href' => '',
530: # });
1.460 droeschl 531: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 532: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 533: }
1.272 albertel 534: } elsif (!defined($found{'body'})) {
1.343 albertel 535: my %add_entries;
1.159 albertel 536: my $background=&Apache::lonxml::get_param('background',$parstack,
537: $safeeval);
1.343 albertel 538: if ($background ne '' ) {
539: $add_entries{'background'} = $background;
540: }
1.344 albertel 541:
1.290 albertel 542: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
543: $safeeval);
1.446 bisitz 544: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 545:
1.446 bisitz 546: $body_args{'bgcolor'} = $bgcolor;
547: # $body_args{'no_title'} = 1;
548: $body_args{'force_register'} = 1;
549: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 550: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 551: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 552: } elsif ($target eq 'web') {
553: $body_args{'print_suppress'} = 1;
1.446 bisitz 554: }
1.344 albertel 555: }
1.365 albertel 556: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 557: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
558: \%body_args);
1.446 bisitz 559: $page_start .= $pageheader;
1.462 raeburn 560: if (!defined($found{'body'})
561: && $env{'request.state'} ne 'construct'
562: && ($target eq 'web' || $target eq 'webgrade')) {
563:
564: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
565: if ($symb eq '' && !$publicuser) {
566: $page_start .= '<p class="LC_info">'
567: .&mt('Browsing resource, all submissions are temporary.')
568: .'</p>';
1.457 bisitz 569: }
1.344 albertel 570: }
571:
1.409 albertel 572: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 573: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 574: }
575: my $form_tag_start;
576: if (!defined($found{'form'})) {
1.337 albertel 577: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 578: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 579: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 580: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 581: $form_tag_start.=$uri.'" ';
582: if ($target eq 'edit') {
583: $form_tag_start.=&Apache::edit::form_change_detection();
584: }
1.493 raeburn 585: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
586: my ($path,$multiresp) =
587: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.512.2.24.2. (raeburn 588:): if ($env{'request.user_in_effect'}) {
589:): $form_tag_start .= ' onsubmit="preventDefault();"';
590:): } elsif (($is_task) || ($needs_upload)) {
1.495 raeburn 591: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 592: }
1.368 albertel 593: $form_tag_start.='>'."\n";
1.355 albertel 594:
595: if ($symb =~ /\S/) {
596: $symb=
597: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
598: $form_tag_start.=
1.368 albertel 599: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 600: }
1.159 albertel 601: }
1.512.2.9 raeburn 602: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 603: }
604:
1.141 matthew 605: #use Time::HiRes();
1.105 albertel 606: sub get_resource_name {
1.159 albertel 607: my ($parstack,$safeeval)=@_;
1.388 foxr 608: my $name;
1.204 albertel 609: if (defined($Apache::lonhomework::name)) {
1.388 foxr 610: $name = $Apache::lonhomework::name;
611: } else {
612: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 613: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 614: if ($name eq '') {
615: $name=&Apache::lonnet::EXT('resource.title');
616: if ($name eq 'con_lost') { $name = ''; }
617: }
618: if ($name!~/\S+/) {
619: $name=$env{'request.uri'};
620: $name=~s-.*/([^/]+)$-$1-;
621: }
622: # The name has had html tags escaped:
623:
624: $name=~s/</</gs;
625: $name=~s/>/>/gs;
626:
627: $Apache::lonhomework::name=$name;
1.204 albertel 628: }
1.159 albertel 629: return $name;
1.105 albertel 630: }
631:
632: sub setup_rndseed {
1.512.2.9 raeburn 633: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 634: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 635: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 636: if ($target eq 'analyze') {
637: $questiontype = $env{'form.grade_questiontype'};
638: }
639: unless (defined($questiontype)) {
640: $questiontype = $Apache::lonhomework::type;
641: }
1.512.2.19 raeburn 642: if ($Apache::lonhomework::type eq 'randomizetry') {
643: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 644: #
645: # Where question type is "randomizetry" for a problem containing
646: # a single part (and unless type is explicitly set to not be
647: # "randomizetry" for that part), the number of tries used to
648: # determine randomization will be for that part, and randomization
649: # from calls to &random() in a perl script block before the part tag,
650: # will change based on the number of tries, and value of the
651: # "randomizeontries" parameter in effect for the single part.
652: #
1.512.2.19 raeburn 653: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 654: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
655: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 656: $partfortries = $probpartlist->[0];
657: } else {
658: $partfortries = '';
659: }
1.512.2.19 raeburn 660: }
661: }
1.512.2.21 raeburn 662: if ($partfortries ne '') {
663: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
664: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
665: }
1.512.2.19 raeburn 666: }
1.512.2.24.2. (raeburn 667:): if (($env{'request.state'} eq "construct")
1.512.2.14 raeburn 668: || ($symb eq '')
669: || ($Apache::lonhomework::type eq 'practice')
1.512.2.24.2. (raeburn 670:): || ($Apache::lonhomework::history{'resource.CODE'})
1.512.2.14 raeburn 671: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 672: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 673: ['rndseed']);
1.284 albertel 674: $rndseed=$env{'form.rndseed'};
1.159 albertel 675: if (!$rndseed) {
1.162 albertel 676: $rndseed=$Apache::lonhomework::history{'rndseed'};
677: if (!$rndseed) {
678: $rndseed=time;
679: }
1.512.2.14 raeburn 680: unless ($env{'form.code_for_randomlist'}) {
681: $env{'form.rndseed'}=$rndseed;
682: }
1.162 albertel 683: }
1.512.2.20 raeburn 684: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 685: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 686: if ($numtries) {
687: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
688: my $inc = int($numtries/$reqtries);
689: $rndseed += $inc;
690: } else {
691: $rndseed += $numtries;
692: }
1.479 raeburn 693: }
1.480 raeburn 694: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 695: }
1.374 albertel 696: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
697: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 698: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 699: srand(time);
700: $rndseed=int(rand(2100000000));
1.284 albertel 701: $env{'form.rndseed'}=$rndseed;
702: delete($env{'form.resetdata'});
703: delete($env{'form.newrandomization'});
1.159 albertel 704: }
1.488 www 705: $rndseed=~s/\,/\:/g;
706: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 707: if (defined($rndseed)) {
708: my ($c1,$c2)=split(/\:/,$rndseed);
709: unless ($c2) { $c2=0; }
710: unless (($c1==int($c1)) && ($c2==int($c2))) {
711: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
712: }
1.187 albertel 713: }
1.512.2.14 raeburn 714: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
715: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
716: $rndseed=&Apache::lonnet::rndseed();
717: undef($env{'form.CODE'});
718: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 719: $rndseed=&Apache::lonnet::rndseed();
720: }
1.479 raeburn 721: $set_safespace = 1;
722: } elsif ($questiontype eq 'randomizetry') {
723: if ($target eq 'analyze') {
724: if (defined($env{'form.grade_rndseed'})) {
725: $rndseed = $env{'form.grade_rndseed'};
726: }
727: }
728: unless (($target eq 'analyze') && (defined($rndseed))) {
729: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 730: my $curr_try = $numtries;
1.479 raeburn 731: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
732: $curr_try ++;
733: }
734: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
735: $rndseed = $1;
736: }
737: if ($curr_try) {
738: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
739: my $inc = int(($curr_try-1)/$reqtries);
740: $rndseed += $inc;
741: } else {
742: $rndseed += $curr_try;
743: }
744: }
745: }
746: $set_safespace = 1;
1.512.2.9 raeburn 747: if ($target eq 'grade') {
748: $Apache::lonhomework::rawrndseed = $rndseed;
749: }
1.479 raeburn 750: }
751: if ($set_safespace) {
752: if ($safeeval) {
753: &Apache::lonxml::debug("Setting rndseed to $rndseed");
754: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
755: }
756: }
757: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
758: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 759: }
760: return $rndseed;
1.105 albertel 761: }
762:
1.268 albertel 763: sub remember_problem_state {
764: return '
1.284 albertel 765: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
766: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
767: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 768: }
769:
1.487 www 770: sub problem_edit_action_button {
771: my ($name,$action,$accesskey,$text,$flag)=@_;
772: my $actionscript="setmode(this.form,'$action')";
773: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
774: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
775: }
776:
1.423 www 777: sub problem_edit_buttons {
1.487 www 778: my ($mode)=@_;
1.512.2.11 raeburn 779: # Buttons that save
780: my $result = '<div style="float:right">';
781: if ($mode eq 'editxml') {
782: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
783: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
784: } else {
785: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
786: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
787: }
788: $result.="\n</div>\n";
1.487 www 789: # Buttons that do not save
1.512.2.11 raeburn 790: $result .= '<div>'.
1.487 www 791: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
792: if ($mode eq 'editxml') {
793: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
794: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 795: if ($env{'environment.nocodemirror'}) {
796: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
797: }
1.487 www 798: } else {
799: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
800: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
801: }
802: $result.="\n</div>";
803: return $result;
1.423 www 804: }
805:
806: sub problem_edit_header {
1.512.2.11 raeburn 807: my ($mode)=@_;
808: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 809: &remember_problem_state('edit').'
1.512.2.11 raeburn 810: <div class="LC_edit_problem_header">
811: <div class="LC_edit_problem_header_title">
812: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
813: </div><div class="LC_edit_actionbar" id="actionbar">'.
814: '<input type="hidden" name="problemmode" value="saveedit" />'.
815: &problem_edit_buttons();
816:
817: $return .= '</div></div>' . &Apache::lonxml::message_location();
818: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
819: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
820:
821: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
822: <script type="text/javascript">
823: // unless internet explorer
824: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
825: $(document).ready(
826: function() {
827: $(\'.LC_edit_actionbar\').scrollToFixed(
828: {
829: fixed: function(){
830: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
831: $(this).find(\'.LC_edit_actionbar\');
832: }
833: }
834: );
835: }
836: );
837: }
838: </script>
839: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
840: return $return;
1.105 albertel 841: }
842:
1.512.2.11 raeburn 843:
1.105 albertel 844: sub problem_edit_footer {
1.512.2.11 raeburn 845: my $resource = $env{'request.ambiguous'};
1.412 albertel 846: return '</td></tr></table><br />
847: <div class="LC_edit_problem_footer">
1.453 bisitz 848: <hr />'.
1.423 www 849: &problem_edit_buttons().'
1.459 bisitz 850: <hr style="clear:both;" />
1.512.2.11 raeburn 851: <script type="text/javascript">
852: restoreState("'.$resource.'");
853: restoreScrollPosition("'.$resource.'");
854: </script>
1.412 albertel 855: </div>
856: '.
1.342 albertel 857: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 858: }
859:
1.235 albertel 860: sub option {
861: my ($value,$name) = @_;
862: my $result ="<option value='".$value."' ";
1.284 albertel 863: if ($env{'form.'.$name} eq $value) {
1.235 albertel 864: $result.=" selected='on' ";
865: }
866: $result.='>';
867: return $result;
868: }
869:
1.105 albertel 870: sub problem_web_to_edit_header {
1.159 albertel 871: my ($rndseed)=@_;
1.406 albertel 872: my $result .= '<div class="LC_edit_problem_header">';
873:
874: if (!$Apache::lonhomework::parsing_a_task) {
875: $result .=
876: '<div class="LC_edit_problem_header_title">'.
877: &mt('Problem Testing').
878: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
879: '</div>';
880: } else {
881: $result .=
882: '<div class="LC_edit_problem_header_title">'.
883: &mt('Task Testing').
884: '</div>';
885: }
886:
1.315 albertel 887: my $show_all_foils_text =
888: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 889: &mt('Show All Instances')
890: : &mt('Show All Foils');
1.315 albertel 891:
1.452 bisitz 892: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
893: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 894: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 895: $show_all.= ' /> '.$show_all_foils_text
896: .'</label></span>';
1.406 albertel 897:
898:
1.384 albertel 899:
1.406 albertel 900: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 901: if (!$Apache::lonhomework::parsing_a_task) {
902: $result.="
1.406 albertel 903: <div class='LC_edit_problem_header_row1'>
904: <span class=\"LC_nobreak\">
1.405 albertel 905: ".&mt("Problem Status:")."
1.235 albertel 906: <select name='problemstate'>
1.270 albertel 907: <option value=''></option>
1.235 albertel 908: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
909: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
910: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
911: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
912: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
913: </select>
1.406 albertel 914: </span>
915: <span class=\"LC_nobreak\">
1.405 albertel 916: ".&mt("Problem Type:")."
1.235 albertel 917: <select name='problemtype'>
1.270 albertel 918: <option value=''></option>
1.512.2.1 raeburn 919: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 920: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 921: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 922: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
923: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
924: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 925: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 926: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 927: </select>
1.406 albertel 928: </span>
929: $show_all
930: </div>
931: <div class='LC_edit_problem_header_row2'>
932: <span class=\"LC_nobreak\">
1.405 albertel 933: ".&mt("Feedback Mode:")."
1.235 albertel 934: <select name='problemstatus'>
935: <option value=''></option>
1.242 albertel 936: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 937: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 938: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 939: </select>
1.406 albertel 940: </span>
941: ";
942:
1.376 albertel 943: } elsif ($Apache::lonhomework::parsing_a_task) {
944: $result.="
1.406 albertel 945: <div class='LC_edit_problem_header_row1'>
946: <span class=\"LC_nobreak\">
1.405 albertel 947: ".&mt("Problem Status:")."
1.376 albertel 948: <select name='problemstate'>
949: <option value=''></option>
950: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
951: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
952: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
953: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
954: </select>
1.406 albertel 955: </span>
956: $show_all
957: ";
958: }
959: $result.='
960: <span class="LC_nobreak">
961: '.&mt('Apply style file: ').'
962: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
963: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
964: </span>
1.422 www 965: </div>
966: <div class="LC_edit_problem_header_row1">'.
967: &Apache::lonxml::renderingoptions().'
1.406 albertel 968: </div>
969: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
970: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
971: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
972: </div>
1.453 bisitz 973: <hr />
1.406 albertel 974: <div class="LC_edit_problem_header_randomize_row">
975: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
976: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 977: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 978: $rndseed.'"
979: onchange="javascript:document.lonhomework.changerandseed.click()" />';
980:
981: if (!$Apache::lonhomework::parsing_a_task) {
982: my $numtoanalyze=$env{'form.numtoanalyze'};
983: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 984: $result .= '<span class="LC_nobreak">'.
985: &mt('[_1] for [_2] versions.',
1.416 raeburn 986: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 987: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
988: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 989: $numtoanalyze.'" size="5" />').
990: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
991: '</span>';
992:
1.313 albertel 993: }
1.406 albertel 994:
995: $result.='
996: </div>
1.453 bisitz 997: <hr />
1.447 bisitz 998: <div>';
1.416 raeburn 999: $result.='<input type="hidden" name="problemmode" value="view" />';
1000: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1001: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1002: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1003: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1004: $result.='
1005: </div>
1.453 bisitz 1006: <hr />
1.409 albertel 1007: '.&Apache::lonxml::message_location().'
1.406 albertel 1008: </div>';
1.159 albertel 1009: return $result;
1.48 albertel 1010: }
1011:
1.65 albertel 1012: sub initialize_storage {
1.357 albertel 1013: my ($given_symb) = @_;
1.353 albertel 1014: undef(%Apache::lonhomework::results);
1015: undef(%Apache::lonhomework::history);
1.357 albertel 1016: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1017: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1018:
1019: # anonymous users (CODEd exams) have no data
1020: if ($name eq 'anonymous'
1021: && !defined($domain)) {
1022: return;
1023: }
1024:
1.333 albertel 1025: if ($env{'request.state'} eq 'construct'
1026: || $symb eq ''
1027: || $Apache::lonhomework::type eq 'practice') {
1028:
1029: my $namespace = $symb || $env{'request.uri'};
1030: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1031: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1032: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1033: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1034: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1035: &Apache::lonxml::debug("Attempt reset");
1036: }
1.159 albertel 1037: %Apache::lonhomework::history=
1.333 albertel 1038: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1039: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1040: &Apache::lonxml::debug("Return message of $temp");
1041: } else {
1042: %Apache::lonhomework::history=
1043: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1044: }
1.353 albertel 1045:
1.159 albertel 1046: #ignore error conditions
1.512.2.9 raeburn 1047: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1048: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1049: }
1050:
1.435 jms 1051: =pod
1052:
1053: =item finalize_storage()
1054:
1.512.2.9 raeburn 1055: Stores away the result hash to a student's environment;
1056: checks form.grade_ for specific values, otherwise stores
1057: to the running user's environment.
1058:
1059: &check_correctness_changes() is called in two circumstances
1060: in which the results hash is to be stored permanently, for
1061: grading triggered by a student's submission, where feedback on
1062: correctness is to be provided to the student.
1063:
1064: 1. Immediately prior to storing the results hash
1065:
1066: To handle the case where a student's submission (and award) were
1067: stored after history was retrieved in &initialize_storage(), e.g.,
1068: if a student submitted answers in quick succession (e.g., from
1069: multiple tabs). &Apache::inputtags::hidealldata() is called for
1070: any parts with out-of-order storage (i.e., correct then incorrect,
1071: where awarded >= 1 when correct).
1072:
1073: 2. Immediately after storing the results hash
1074:
1075: To handle the case where lond on the student's homeserver returns
1076: delay:N -- where N is the number of transactions between the last
1077: retrieved in &initialize_storage() and the last stored immediately
1078: before permanent storage of the current transaction via
1079: lond::store_handler(). &Apache::grades::makehidden() is called
1080: for any parts with out-of-order storage (i.e., correct then incorrect,
1081: where awarded >= 1 when correct).
1082:
1.512.2.24.2. (raeburn 1083:): Will call &store_aggregates() to increment totals for attempts,
1.512.2.9 raeburn 1084: students, and corrects, if running user has student role.
1.512.2.24.2. (raeburn 1085:):
1.435 jms 1086: =cut
1087:
1088:
1.65 albertel 1089: sub finalize_storage {
1.357 albertel 1090: my ($given_symb) = @_;
1.159 albertel 1091: my $result;
1.289 albertel 1092: if (%Apache::lonhomework::results) {
1.323 albertel 1093: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1094: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1095: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1096: &Apache::lonnet::whichuser($given_symb);
1.512.2.24.2. (raeburn 1097:): my ($passback,$pbscope,$pbmap,$pbsymb,$pbtype,$crsdef,$ltinum,
1098:): $ltiref,$total,$possible,$dopassback);
1.333 albertel 1099: if ($env{'request.state'} eq 'construct'
1100: || $symb eq ''
1101: || $Apache::lonhomework::type eq 'practice') {
1102: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1103: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1104: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1105: $namespace,'',$domain,$name);
1.159 albertel 1106: &Apache::lonxml::debug('Construct Store return message:'.$result);
1107: } else {
1.512.2.24.2. (raeburn 1108:): my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.512.2.9 raeburn 1109: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1110: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1111: (!defined($env{'form.grade_courseid'}))) {
1.512.2.24.2. (raeburn 1112:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1113:): my ($map)=&Apache::lonnet::decode_symb($symb);
1114:): $map = &Apache::lonnet::clutter($map);
1115:): if ($env{'request.lti.login'}) {
1116:): ($passback,$pbscope,$pbmap,$pbsymb,$ltinum,$ltiref) =
1117:): &needs_lti_passback($courseid,$symb,$map);
1118:): } elsif ($env{'request.deeplink.login'}) {
1119:): ($passback,$pbscope,$pbmap,$pbsymb,$crsdef,$ltinum,$ltiref) =
1120:): &needs_linkprot_passback($courseid,$symb,$map);
1121:): }
1122:): }
1.512.2.9 raeburn 1123: if ($Apache::lonhomework::history{'version'}) {
1124: $laststore = $Apache::lonhomework::history{'version'}.'='.
1125: $Apache::lonhomework::history{'timestamp'};
1126: } else {
1127: $laststore = '0=0';
1128: }
1.512.2.24.2. (raeburn 1129:): %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.512.2.9 raeburn 1130: if ($record{'version'}) {
1131: my ($newversion,$oldversion,$oldtimestamp);
1132: if ($Apache::lonhomework::history{'version'}) {
1133: $oldversion = $Apache::lonhomework::history{'version'};
1134: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1135: } else {
1136: $oldversion = 0;
1137: $oldtimestamp = 0;
1138: }
1139: if ($record{'version'} > $oldversion) {
1140: if ($record{'timestamp'} >= $oldtimestamp) {
1141: $laststore = $record{'version'}.'='.$record{'timestamp'};
1142: $newversion = $record{'version'} + 1;
1143: $checkedparts = 1;
1144: foreach my $key (keys(%Apache::lonhomework::results)) {
1145: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1146: my $part = $1;
1147: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1148: push(@parts,$part);
1149: }
1150: }
1151: }
1152: if (@parts) {
1153: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1154: \%record,\@parts,$newversion,
1155: $oldversion);
1156: if (@parts_to_hide) {
1157: foreach my $part (@parts_to_hide) {
1158: $postcorrect{$part} = 1;
1159: &Apache::inputtags::hidealldata($part);
1160: }
1161: }
1162: }
1163: }
1164: }
1165: }
1166: }
1.159 albertel 1167: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1168: $symb,$courseid,$domain,$name,$laststore);
1169: if ($result =~ /^delay\:(\d+)$/) {
1170: my $numtrans = $1;
1171: my ($oldversion) = split(/=/,$laststore);
1172: if ($numtrans) {
1173: my $newversion = $oldversion + 1 + $numtrans;
1174: my @possparts;
1175: if ($checkedparts) {
1176: foreach my $part (@parts) {
1177: unless ($postcorrect{$part}) {
1178: push(@possparts,$part);
1179: }
1180: }
1181: } else {
1182: foreach my $key (keys(%Apache::lonhomework::results)) {
1183: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1184: my $part = $1;
1185: unless ($postcorrect{$part}) {
1186: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1187: push(@possparts,$part);
1188: }
1189: }
1190: }
1191: }
1192: }
1193: if (@possparts) {
1194: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1195: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1196: \%newrecord,\@possparts,$newversion,
1197: $oldversion);
1198: if (@parts_to_hide) {
1199: my $partslist = join(',',@parts_to_hide);
1200: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1201: }
1202: }
1203: }
1204: }
1.512.2.24.2. (raeburn 1205:): if ($passback) {
1206:): foreach my $key (keys(%Apache::lonhomework::results)) {
1207:): if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1208:): my $part = $1;
1209:): if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1210:): ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1211:): ($Apache::lonhomework::results{"resource.$part.tries"})) {
1212:): $dopassback = 1;
1213:): last;
1214:): }
1215:): }
1216:): }
1217:): }
1218:): if (($dopassback) && ($pbscope eq 'resource') && ($pbsymb eq $symb)) {
1219:): $total = 0;
1220:): $possible = 0;
1221:): my $navmap = Apache::lonnavmaps::navmap->new();
1222:): if (ref($navmap)) {
1223:): my $res = $navmap->getBySymb($symb);
1224:): if (ref($res)) {
1225:): my $partlist = $res->parts();
1226:): if (ref($partlist) eq 'ARRAY') {
1227:): foreach my $part (@{$partlist}) {
1228:): unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1229:): next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1230:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1231:): $possible += $weight;
1232:): if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1233:): my $awarded = $record{"resource.$part.awarded"};
1234:): if ($awarded) {
1235:): $total += $weight * $awarded;
1236:): }
1237:): }
1238:): }
1239:): }
1240:): }
1241:): }
1242:): }
1243:): foreach my $key (keys(%Apache::lonhomework::results)) {
1244:): if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1245:): my $part = $1;
1246:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1247:): $possible += $weight;
1248:): my $awarded = $Apache::lonhomework::results{$key};
1249:): if ($awarded) {
1250:): $total += $weight * $awarded;
1251:): }
1252:): }
1253:): }
1254:): }
1.159 albertel 1255: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1256: &store_aggregates($symb,$courseid);
1.512.2.24.2. (raeburn 1257:): if ($dopassback) {
1258:): my $scoreformat = 'decimal';
1259:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1260:): if (ref($ltiref) eq 'HASH') {
1261:): if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1262:): $scoreformat = $1;
1263:): }
1264:): }
1265:): }
1266:): my ($pbid,$pburl,$pbtype);
1267:): if ($env{'request.lti.login'}) {
1268:): $pbid = $env{'request.lti.passbackid'};
1269:): $pburl = $env{'request.lti.passbackurl'};
1270:): $pbtype = 'lti';
1271:): } elsif ($env{'request.deeplink.login'}) {
1272:): $pbid = $env{'request.linkprotpbid'};
1273:): $pburl = $env{'request.linkprotpburl'};
1274:): $pbtype = 'linkprot';
1275:): }
1276:): my $ltigrade = {
1277:): 'ltinum' => $ltinum,
1278:): 'lti' => $ltiref,
1279:): 'crsdef' => $crsdef,
1280:): 'cid' => $courseid,
1281:): 'uname' => $env{'user.name'},
1282:): 'udom' => $env{'user.domain'},
1283:): 'pbid' => $pbid,
1284:): 'pburl' => $pburl,
1285:): 'pbtype' => $pbtype,
1286:): 'scope' => $pbscope,
1287:): 'pbmap' => $pbmap,
1288:): 'pbsymb' => $pbsymb,
1289:): 'format' => $scoreformat,
1290:): };
1291:): if ($pbscope eq 'resource') {
1292:): $ltigrade->{'total'} = $total;
1293:): $ltigrade->{'possible'} = $possible;
1294:): }
1295:): push(@Apache::lonhomework::ltipassback,$ltigrade);
1296:): }
1.159 albertel 1297: }
1.323 albertel 1298: } else {
1299: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1300: }
1.159 albertel 1301: return $result;
1.65 albertel 1302: }
1303:
1.512.2.24.2. (raeburn 1304:): sub needs_lti_passback {
1305:): my ($courseid,$symb,$map) = @_;
1306:): if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1307:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1308:): my ($cdom,$cnum) = ($1,$2);
1309:): my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1310:): if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1311:): if ($lti{$env{'request.lti.login'}}{'passback'}) {
1312:): my $itemnum = $env{'request.lti.login'};
1313:): my ($ltiscope,$ltiuri,$ltisymb) =
1314:): &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1315:): $cdom,$cnum,1);
1316:): my ($passback,$ltimap);
1317:): if ($ltiscope eq 'resource') {
1318:): if ($ltisymb eq $symb) {
1319:): $passback = 1;
1320:): }
1321:): } elsif ($ltiscope eq 'map') {
1322:): if ($ltiuri eq $map) {
1323:): $passback = 1;
1324:): $ltimap = $map;
1325:): }
1326:): } elsif ($ltiscope eq 'course') {
1327:): if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1328:): $passback = 1;
1329:): }
1330:): }
1331:): return ($passback,$ltiscope,$ltimap,$ltisymb,$itemnum,$lti{$itemnum});
1332:): }
1333:): }
1334:): }
1335:): }
1336:): return;
1337:): }
1338:):
1339:): sub needs_linkprot_passback {
1340:): my ($courseid,$symb,$map) = @_;
1341:): if (($env{'request.linkprotpbid'}) && ($env{'request.linkprotpburl'})) {
1342:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1343:): my ($cdom,$cnum) = ($1,$2);
1344:): my ($deeplink_symb,$deeplink_map,$deeplink,$passback);
1345:): $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
1346:): if ($deeplink_symb) {
1347:): if ($deeplink_symb =~ /\.(page|sequence)$/) {
1348:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[2]);
1349:): my $navmap = Apache::lonnavmaps::navmap->new();
1350:): if (ref($navmap)) {
1351:): $deeplink = $navmap->get_mapparam(undef,$deeplink_map,'0.deeplink');
1352:): }
1353:): } else {
1354:): $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$deeplink_symb);
1355:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[0]);
1356:): }
1357:): if (($deeplink ne '') && ($env{'request.linkprot'} ne '')) {
1358:): my ($itemid,$tinyurl) = split(/:/,$env{'request.linkprot'});
1359:): if ($itemid =~ /^(\d+)(c|d)$/) {
1360:): my ($itemnum,$itemtype) = ($1,$2);
1361:): my ($crsdef,$lti_in_use);
1362:): if ($itemtype eq 'c') {
1363:): $crsdef = 1;
1364:): my %crslti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
1365:): $lti_in_use = $crslti{$itemnum};
1366:): } else {
1367:): my %domlti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
1368:): $lti_in_use = $domlti{$itemnum};
1369:): }
1370:): my ($state,$others,$listed,$scope,$protect,$display,$target,$exit) = split(/,/,$deeplink);
1371:): my ($passback,$pbscope);
1372:): if ($scope eq 'res') {
1373:): if ($deeplink_symb eq $symb) {
1374:): $passback = 1;
1375:): $pbscope = 'resource';
1376:): }
1377:): } elsif ($scope eq 'map') {
1378:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1379:): $passback = 1;
1380:): $pbscope = 'nonrec';
1381:): }
1382:): } elsif ($scope eq 'rec') {
1383:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1384:): $passback = 1;
1385:): $pbscope = 'map';
1386:): } else {
1387:): my @recurseup = &Apache::lonnet::get_map_hierarchy($map,$env{'request.course.id'});
1388:): if (grep(/^\Q$deeplink_map\E$/,@recurseup)) {
1389:): $passback = 1;
1390:): $pbscope = 'map';
1391:): }
1392:): }
1393:): }
1394:): return ($passback,$pbscope,$deeplink_map,$deeplink_symb,$crsdef,$itemnum,$lti_in_use);
1395:): }
1396:): }
1397:): }
1398:): }
1399:): }
1400:): }
1401:):
1.435 jms 1402: =pod
1403:
1.512.2.9 raeburn 1404: =item check_correctness_changes()
1405:
1406: For all parts for which current results contain a solved status
1407: of "incorrect_attempted", check if there was a transaction in which
1408: solved was set to "correct_by_student" in the time since the last
1409: transaction (retrieved when &initialize_storage() was called i.e.,
1410: when &start_problem() was called), unless:
1411: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1412: (b) problemstatus is set to no or no_feedback_ever
1413: If such a transaction exists, and did not occur after "reset status"
1414: by a user with grading privileges, then the current transaction is an
1415: example of an out-of-order transaction (i.e., incorrect occurring after
1416: correct). Accordingly, the current transaction should be hidden.
1417:
1418: =cut
1419:
1420:
1421: sub check_correctness_changes {
1422: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1423: my @parts_to_hide;
1424: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1425: return @parts_to_hide;
1426: }
1427: if (@{$parts}) {
1428: my $usec;
1429: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1430: ($env{'request.course.id'} eq $courseid)) {
1431: $usec = $env{'request.course.sec'};
1432: } else {
1433: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1434: }
1435: foreach my $id (@{$parts}) {
1436: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1437: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1438: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1439: my $reset;
1440: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1441: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1442: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1443: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1444: $reset = 1;
1445: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1446: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1447: unless ($reset) {
1448: push(@parts_to_hide,$id);
1449: last;
1450: }
1451: }
1452: }
1453: }
1454: }
1455: return @parts_to_hide;
1456: }
1457:
1458: =pod
1459:
1.435 jms 1460: item store_aggregates()
1461:
1462: Sends hash of values to be incremented in nohist_resourcetracker.db
1463: for the course. Increments total number of attempts, unique students
1464: and corrects for each part for an instance of a problem, as appropriate.
1465:
1466: =cut
1467:
1.285 raeburn 1468: sub store_aggregates {
1469: my ($symb,$courseid) = @_;
1.479 raeburn 1470: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1471: my @parts;
1.288 albertel 1472: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1473: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1474: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1475: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1476: push(@parts, $1);
1.285 raeburn 1477: }
1478: }
1.286 albertel 1479: foreach my $part (@parts) {
1.470 raeburn 1480: if ($env{'request.role'} =~/^st/) {
1481: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1482: eq 'APPROX_ANS' ||
1483: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1484: eq 'EXACT_ANS') {
1485: $aggregate{$symb."\0".$part."\0correct"} = 1;
1486: }
1487: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1488: $aggregate{$symb."\0".$part."\0users"} = 1;
1489: } else {
1490: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1491: if ($last_reset) {
1492: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1493: $aggregate{$symb."\0".$part."\0users"} = 1;
1494: }
1495: }
1496: }
1497: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1498: }
1.470 raeburn 1499: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1500: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1501: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1502: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1503: $randtrycounter{$symb."\0".$part} = 1;
1504: } else {
1505: $anoncounter{$symb."\0".$part} = 1;
1506: }
1.470 raeburn 1507: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1508: if ($needsrelease) {
1509: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1510: if ($curr_required eq '') {
1.471 raeburn 1511: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1512: } else {
1513: my ($currmajor,$currminor) = split(/\./,$curr_required);
1514: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1515: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1516: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1517: }
1.292 raeburn 1518: }
1519: }
1.285 raeburn 1520: }
1521: }
1.512.2.9 raeburn 1522: if (keys(%aggregate) > 0) {
1.289 albertel 1523: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1524: $cdomain,$cname);
1525: }
1.472 raeburn 1526: if (keys(%anoncounter) > 0) {
1.481 raeburn 1527: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1528: $cdomain,$cname);
1.472 raeburn 1529: }
1.479 raeburn 1530: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1531: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1532: $cdomain,$cname);
1.479 raeburn 1533: }
1.292 raeburn 1534: }
1.289 albertel 1535:
1.512.2.24.2. 0(raebur 1536:4): sub access_status_msg {
1537:4): my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1538:4): my $msg;
1539:4): if ($target eq 'web') {
1540:4): if ($status eq 'UNAVAILABLE') {
1541:4): $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1542:4): } elsif ($status eq 'NOT_IN_A_SLOT') {
1543:4): $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1544:4): } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1545:4): ($status eq 'NOTRESERVABLE')) {
1546:4): $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1547:4): } elsif ($status ne 'NOT_YET_VIEWED') {
1548:4): $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1549:4): }
1550:4): if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1551:4): $msg.=&mt('The problem ').$accessmsg;
1552:4): } elsif ($status eq 'UNCHECKEDOUT') {
1553:4): $msg.=&checkout_msg();
1554:4): } elsif ($status eq 'NOT_YET_VIEWED') {
1555:4): $msg.=&firstaccess_msg($accessmsg,$symb);
1556:4): } elsif ($status eq 'NOT_IN_A_SLOT') {
1557:4): $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1558:4): } elsif ($status eq 'RESERVABLE') {
1559:4): $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1560:4): &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1561:4): '<br />'.
1562:4): &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1563:4): } elsif ($status eq 'RESERVABLE_LATER') {
1564:4): $msg.=&mt('Window to make a reservation will open [_1].',
1565:4): &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1566:4): } elsif ($status eq 'NOTRESERVABLE') {
1567:4): $msg.=&mt('Not available to make a reservation.');
1568:4): }
1569:4): $msg.='<br />';
1570:4): } elsif ($target eq 'tex') {
1571:4): my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1572:4): : '\begin{minipage}{\textwidth}';
1573:4):
1574:4): $msg ='\noindent \vskip 1 mm '.
1575:4): $startminipage.'\vskip 0 mm';
1576:4): if ($status eq 'UNAVAILABLE') {
1577:4): $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1578:4): } else {
1579:4): $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1580:4): }
1581:4): }
1582:4): return $msg;
1583:4): }
1584:4):
1585:4): sub checkin_prompt {
1586:4): my ($target,$slot_name,$slot,$type) = @_;
1587:4): my $result;
1588:4): if ($target eq 'web') {
1589:4): $result = &Apache::bridgetask::proctor_validation_screen($slot);
1590:4): } elsif ($target eq 'grade') {
1591:4): if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1592:4): $result = &mt('An error occurred during check-in');
1593:4): }
1594:4): }
1595:4): return $result;
1596:4): }
1597:4):
1598:4): sub selfcheckin_resource {
1599:4): my ($resource_due,$slot_name,$slot,$symb) = @_;
1600:4): if ($slot_name ne '') {
1601:4): my $checked_in =
1602:4): $Apache::lonhomework::history{'resource.0.checkedin'};
1603:4): if ($checked_in eq '') {
1604:4): # unproctored slot access, self checkin
1605:4): my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1606:4): $slot_name);
1607:4): if ($check =~ /^error: /) {
1608:4): &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1609:4): } else {
1610:4): $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1611:4): }
1612:4): }
1613:4): if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1614:4): if ($slot->{'starttime'} < time()) {
1615:4): if (!$resource_due) {
1616:4): $resource_due = $slot->{'endtime'};
1617:4): } elsif ($slot->{'endtime'} < $resource_due) {
1618:4): $resource_due = $slot->{'endtime'};
1619:4): }
1620:4): }
1621:4): }
1622:4): }
1623:4): return $resource_due;
1624:4): }
1625:4):
1.65 albertel 1626: sub checkout_msg {
1.211 albertel 1627: my %lt=&Apache::lonlocal::texthash(
1628: 'resource'=>'The resource needs to be checked out',
1629: '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.',
1630: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1631: 'checkout'=>'Check out Exam for Viewing',
1632: 'checkout?'=>'Check out Exam?');
1.352 albertel 1633: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1634: return (<<ENDCHECKOUT);
1.211 albertel 1635: <h2>$lt{'resource'}</h2>
1636: <p>$lt{'id_expln'}</p>
1.449 bisitz 1637: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1638: <form name="checkout" method="post" action="$uri">
1.91 albertel 1639: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1640: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1641: </form>
1642: ENDCHECKOUT
1643: }
1644:
1.252 albertel 1645: sub firstaccess_msg {
1.253 albertel 1646: my ($time,$symb)=@_;
1.414 albertel 1647: my $result;
1648: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1649: if ($interval[1] eq 'map') {
1650: my ($map)=&Apache::lonnet::decode_symb($symb);
1651: my $foldertitle=&Apache::lonnet::gettitle($map);
1652:
1653: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1654: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1655: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1656: ,$foldertitle,$time)."</p>";
1.414 albertel 1657: } elsif ($interval[1] eq 'course') {
1658: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1659: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1660: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1661: ,$course,$time)."</p>";
1.414 albertel 1662: } else {
1663: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1664: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1665: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1666: ,$title,$time)."</p>";
1.414 albertel 1667: }
1.352 albertel 1668: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1669: my $buttontext = &mt('Show Resource');
1670: my $timertext = &mt('Start Timer?');
1.512.2.24 raeburn 1671: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1672: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1673: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1674: <input type="hidden" name="markaccess" value="yes" />
1.512.2.24 raeburn 1675: <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1676: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1677: </form>
1678: ENDCHECKOUT
1.414 albertel 1679: return $result;
1.252 albertel 1680: }
1681:
1.204 albertel 1682: sub init_problem_globals {
1683: my ($type)=@_;
1684: #initialize globals
1.308 foxr 1685: # For problems, we start out in part 0 (outside a <part> tag).
1686: # and part 0 is used to describe the main body of the <problem>
1687: #
1.204 albertel 1688: if ($type eq 'problem') {
1689: $Apache::inputtags::part='0';
1690: @Apache::inputtags::partlist=('0');
1.405 albertel 1691: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1692: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1693:
1.266 albertel 1694: } elsif ($type eq 'library') {
1.204 albertel 1695: $Apache::inputtags::part='';
1696: @Apache::inputtags::partlist=();
1.405 albertel 1697: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1698: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1699:
1.304 albertel 1700: } elsif ($type eq 'Task') {
1701: $Apache::inputtags::part='0';
1702: @Apache::inputtags::partlist=('0');
1.405 albertel 1703: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1704: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1705: }
1.477 www 1706: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1707: @Apache::inputtags::responselist = ();
1708: @Apache::inputtags::importlist = ();
1709: @Apache::inputtags::previous=();
1710: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1711: $Apache::inputtags::leniency='';
1.204 albertel 1712: $Apache::structuretags::printanswer='No';
1713: @Apache::structuretags::whileconds=();
1714: @Apache::structuretags::whilebody=();
1715: @Apache::structuretags::whileline=();
1716: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1717: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1718: undef($Apache::lonhomework::name);
1.358 albertel 1719: undef($Apache::lonhomework::default_type);
1720: undef($Apache::lonhomework::type);
1.204 albertel 1721: }
1722:
1723: sub reset_problem_globals {
1724: my ($type)=@_;
1725: undef(%Apache::lonhomework::history);
1726: undef(%Apache::lonhomework::results);
1727: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1728: undef($Apache::inputtags::leniency);
1.498 raeburn 1729: if ($type eq 'Task') {
1730: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1731: } elsif ($type eq 'problem') {
1732: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1733: }
1.208 albertel 1734: #don't undef this, lonhomework.pm takes care of this, we use this to
1735: #detect if we try to do 2 problems in one file
1736: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1737: undef($Apache::lonhomework::name);
1.358 albertel 1738: undef($Apache::lonhomework::default_type);
1739: undef($Apache::lonhomework::type);
1740: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1741: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1742: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1743: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1744: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1745: }
1746:
1.241 albertel 1747: sub set_problem_state {
1.240 albertel 1748: my ($part)=@_;
1.284 albertel 1749: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1750: $Apache::lonhomework::history{"resource.$part.solved"}=
1751: 'correct_by_student';
1752: }
1753: }
1754:
1.241 albertel 1755: sub get_problem_status {
1756: my ($part)=@_;
1.267 albertel 1757: my $problem_status;
1.284 albertel 1758: if ($env{'request.state'} eq 'construct' &&
1759: defined($env{'form.problemstatus'})) {
1760: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1761: } else {
1762: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1763: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1764: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1765: }
1766: return $problem_status;
1767: }
1768:
1.9 albertel 1769: sub start_problem {
1.326 albertel 1770: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1771:
1.311 foxr 1772: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1773: if (!$Apache::lonxml::metamode) {
1774: &Apache::lonxml::startredirection();
1775: }
1.311 foxr 1776:
1.308 foxr 1777: # Problems don't nest and we don't allow more than one <problem> in
1778: # a .problem file.
1779: #
1.184 albertel 1780: if ( $Apache::inputtags::part ne '' ||
1781: $Apache::lonhomework::parsing_a_problem) {
1782: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1783: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1784: return '';
1785: }
1.184 albertel 1786:
1787: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1788: &init_problem_globals('problem');
1.166 albertel 1789:
1.284 albertel 1790: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1791: $Apache::lonhomework::scantronmode=1;
1792: }
1.161 albertel 1793:
1.159 albertel 1794: if ($target ne 'analyze') {
1.415 raeburn 1795: my $type = &Apache::lonnet::EXT('resource.0.type');
1796: $Apache::lonhomework::type=$type;
1.284 albertel 1797: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1798: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1799: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1800: }
1.332 albertel 1801: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1802: }
1.164 albertel 1803: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1804: my $uri=$env{'request.uri'};
1.159 albertel 1805: if ($uri=~/\.(\w+)$/) {
1806: $Apache::lonhomework::type=$1;
1807: &Apache::lonxml::debug("Using type of $1");
1808: } else {
1809: $Apache::lonhomework::type='problem';
1810: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1811: }
1.87 albertel 1812: }
1.301 albertel 1813: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1814:
1.363 albertel 1815: &initialize_storage();
1.389 albertel 1816: if ($target ne 'analyze'
1817: && $env{'request.state'} eq 'construct') {
1818: &set_problem_state('0');
1819: }
1820:
1.366 albertel 1821: if ($target eq 'web') {
1822: &Apache::lonxml::debug(" grading history ");
1823: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1824: }
1.363 albertel 1825:
1.159 albertel 1826: #added vars to the scripting enviroment
1.213 albertel 1827: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1828: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1829: &Apache::run::run($expression,$safeeval);
1.159 albertel 1830: my $status;
1831: my $accessmsg;
1.508 raeburn 1832: my $resource_due;
1.159 albertel 1833:
1.343 albertel 1834: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1835: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1836:
1837: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1838: $target eq 'tex') {
1839: if ($env{'form.markaccess'}) {
1840: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.24.2. (raeburn 1841:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1842:): my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.512.2.16 raeburn 1843: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1844: $firstaccres = $is_set;
1845: }
1.506 raeburn 1846: }
1847: }
1848:
1.354 albertel 1849: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1850: || $target eq 'edit') {
1.512.2.9 raeburn 1851: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1852: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1853: $name);
1.512.2.24.2. (raeburn 1854:): } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1855:): ($target eq 'answer')) {
1.512.2.9 raeburn 1856: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1857: if ($symb ne '') {
1858: my $navmap = Apache::lonnavmaps::navmap->new();
1859: if (ref($navmap)) {
1860: my $res = $navmap->getBySymb($symb);
1861: if (ref($res)) {
1862: $probpartlist = $res->parts();
1863: }
1.512.2.9 raeburn 1864: }
1865: }
1.350 albertel 1866: }
1867:
1.512.2.24.2. (raeburn 1868:): if (($target eq 'web') && ($env{'request.user_in_effect'})) {
1869:): &Apache::lonxml::get_all_text("/problem",$parser,$style);
1870:): return $result;
1871:): }
1872:):
1873:): if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1874:): $target eq 'tex') {
1875:):
1876:): my ($symb)= &Apache::lonnet::whichuser();
1877:): ($status,$accessmsg,$slot_name,$slot) =
1878:): &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1879:): push (@Apache::inputtags::status,$status);
1880:): }
1881:):
1.284 albertel 1882: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1883:
1.479 raeburn 1884: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1885: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1886: $target eq 'tex') {
1.479 raeburn 1887:
1.512.2.22 raeburn 1888: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1889: #handle rand seed in construction space
1.512.2.22 raeburn 1890: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1891: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1892: if ($partorder ne '') {
1893: @{$probpartlist} = split(/,/,$partorder);
1894: }
1895: }
1.512.2.9 raeburn 1896: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1897: if (($target eq 'grade') && &Apache::response::submitted()) {
1898: if ($Apache::lonhomework::type eq 'randomizetry') {
1899: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1900: } else {
1901: my @parts;
1902: if (ref($probpartlist) eq 'ARRAY') {
1903: @parts = @{$probpartlist};
1904: }
1905: unless (@parts) {
1906: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1907: }
1908: }
1909: }
1.479 raeburn 1910:
1.333 albertel 1911: if ($env{'request.state'} ne "construct" &&
1912: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1913: my $rndseedval = $rndseed;
1914: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1915: $rndseedval = $env{'form.rndseed'};
1916: }
1.162 albertel 1917: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1918: $rndseedval.'" />'.
1.462 raeburn 1919: '<input type="submit" name="resetdata"
1920: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1921: if (exists($env{'form.username'})) {
1922: $form_tag_start.=
1.164 albertel 1923: '<input type="hidden" name="username"
1.284 albertel 1924: value="'.$env{'form.username'}.'" />';
1.334 albertel 1925: }
1.462 raeburn 1926: if ($env{'request.role.adv'}) {
1927: $form_tag_start.= ' <label class="LC_nobreak">'
1928: .'<input type="checkbox" name="showallfoils"';
1929: if (defined($env{'form.showallfoils'})) {
1930: $form_tag_start.=' checked="checked"';
1931: }
1932: $form_tag_start.= ' /> '
1933: .&mt('Show All Foils')
1934: .'</label>';
1935: }
1.417 www 1936: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1937: $form_tag_start.=&practice_problem_header();
1.417 www 1938: }
1.462 raeburn 1939: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1940: }
1941: if (($env{'request.state'} ne "construct") &&
1942: ($Apache::lonhomework::type eq 'randomizetry') &&
1943: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1944: my @parts;
1945: if (ref($probpartlist) eq 'ARRAY') {
1946: @parts = @{$probpartlist};
1947: }
1948: unless (@parts) {
1949: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1950: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1951: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1952: }
1.479 raeburn 1953: }
1.324 albertel 1954:
1.159 albertel 1955: my $expression='$external::datestatus="'.$status.'";';
1956: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1957: &Apache::run::run($expression,$safeeval);
1958: &Apache::lonxml::debug("Got $status");
1.324 albertel 1959:
1.159 albertel 1960: if (( $status eq 'CLOSED' ) ||
1961: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1962: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1963: ( $status eq 'BANNED') ||
1.216 albertel 1964: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1965: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1966: ( $status eq 'NOTRESERVABLE') ||
1967: ( $status eq 'RESERVABLE') ||
1968: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1969: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1970: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1971: $style);
1.512.2.24.2. 0(raebur 1972:4): if (($status eq 'NOT_YET_VIEWED') && ($firstaccres)) {
1973:4): $result .= '<p class="LC_error">'.
1974:4): &mt('A problem occurred when trying to start the timer.').'</p>';
1975:4): }
1(raebur 1976:4): $result .= &access_status_msg('problem',$status,$symb,$target,'',$accessmsg);
1.324 albertel 1977: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1978: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1979: $style);
1.512.2.24.2. 0(raebur 1980:4): $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 1981: } elsif ($target eq 'web') {
1.508 raeburn 1982: if ($status eq 'CAN_ANSWER') {
1983: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1984: if ($slot_name ne '') {
1.512.2.24.2. 0(raebur 1985:4): $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
1986:4): $env{'request.symb'});
1.508 raeburn 1987: }
1988: if ($resource_due) {
1989: my $time_left = $resource_due - time();
1990: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1991: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1992: }
1993: }
1994: }
1.368 albertel 1995: $result.="\n $form_tag_start \t".
1.227 albertel 1996: '<input type="hidden" name="submitted" value="yes" />';
1997: # create a page header and exit
1.284 albertel 1998: if ($env{'request.state'} eq "construct") {
1999: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 2000: if ($Apache::lonhomework::type eq 'practice') {
2001: $result.= '<input type="submit" name="resetdata" '.
2002: 'value="'.&mt('New Problem Variation').'" />'.
2003: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 2004: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2005: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2006: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2007: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 2008: }
1.227 albertel 2009: }
2010: # if we are viewing someone else preserve that info
1.284 albertel 2011: if (defined $env{'form.grade_symb'}) {
1.227 albertel 2012: foreach my $field ('symb','courseid','domain','username') {
2013: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 2014: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 2015: }
1.479 raeburn 2016: foreach my $field ('trial','questiontype') {
2017: if ($env{"form.grade_$field"} ne '') {
2018: $result .= '<input type="hidden" name="grade_'.$field.
2019: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
2020: }
2021: }
1.159 albertel 2022: }
1.490 raeburn 2023: if ($env{'form.grade_imsexport'}) {
2024: $result = '';
2025: }
1.159 albertel 2026: } elsif ($target eq 'tex') {
1.319 foxr 2027: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2028: $result .= &select_metadata_hyphenation();
1.99 sakharuk 2029: }
1.159 albertel 2030: } elsif ($target eq 'edit') {
1.343 albertel 2031: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2032: $Apache::lonxml::warnings_error_header=
2033: &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 2034: my $temp=&Apache::edit::insertlist($target,$token);
2035: $result.=$temp;
2036: } elsif ($target eq 'modified') {
2037: $result=$token->[4];
2038: } else {
2039: # page_start returned a starting result, delete it if we don't need it
2040: $result = '';
1.99 sakharuk 2041: }
1.159 albertel 2042: return $result;
1.9 albertel 2043: }
2044:
2045: sub end_problem {
1.159 albertel 2046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2047: my $result;
1.310 foxr 2048:
1.321 albertel 2049: if (!$Apache::lonxml::metamode) {
2050: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2051: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2052: }
1.319 foxr 2053:
2054: if ($target eq 'tex') {
1.321 albertel 2055: # Figure out the front matter and replace the
2056: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2057: # this in end_problem because whether or not we display due
2058: # dates depends on whether due dates have already been
2059: # displayed in the problem parts.
2060:
1.319 foxr 2061: my $frontmatter = '';
2062: my $startminipage = '';
2063: if (not $env{'form.problem_split'}=~/yes/) {
2064: $startminipage = '\begin{minipage}{\textwidth}';
2065: }
2066: my $id = $Apache::inputtags::part;
2067: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2068: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2069: my @packages = split(/,/,$packages);
1.319 foxr 2070: my $allow_print_points = 0;
2071: foreach my $partial_key (@packages) {
2072: if ($partial_key=~m/^part_0$/) {
2073: $allow_print_points=1;
2074: }
2075: }
2076: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2077: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2078: if (lc($env{'course.'.$env{'request.course.id'}.
2079: '.disableexampointprint'}) eq 'yes') {
2080: $allow_print_points=0;
2081: }
2082: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2083: 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 2084: &clear_required_languages();
1.319 foxr 2085: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2086: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2087:
2088: # Figure out what the due date is and if we need to print
2089: # it in the problem header. We have been logging the
2090: # last due date written to file.
2091:
2092: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2093: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2094: my $duedate_text = &mt('Due date: [_1]'
2095: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2096: my $temp_file;
2097: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2098:
2099: # Figure out what the last printed due date is or set it
2100: # to the epoch if no duedates have been printed.
2101:
2102: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2103: if (-e $filename) {
2104: $temp_file = Apache::File->new($filename);
2105: my @due_file = <$temp_file>;
2106: $due_file_content = $due_file[$#due_file];
2107: chomp $due_file_content;
2108: }
2109:
2110: # We display the due date iff it is not the same as the last
2111: # duedate in problem header ($due_file_content), and
2112: # none of our parts displayed a duedate.
2113: #
2114: my $parts_with_displayduedate;
2115: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2116: $parts_with_displayduedate =
2117: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2118: } else {
2119: $parts_with_displayduedate = 0;
2120: }
2121: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2122: $temp_file = Apache::File->new('>'.$filename);
2123: print $temp_file "$duetime\n";
2124: if (not $env{'request.symb'} =~ m/\.page_/) {
2125: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2126: $frontmatter .= $begin_doc.
1.448 bisitz 2127: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2128: } else {
2129: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2130: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2131: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2132: }
1.319 foxr 2133: }
2134: } else {
1.448 bisitz 2135: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2136: }
2137: } else {
2138: if (not $env{'request.symb'} =~ m/\.page_/) {
2139: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2140: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2141: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2142: }
1.319 foxr 2143: } else {
1.381 albertel 2144: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2145: }
2146: }
2147: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1.512.2.24.2. (raeburn 2148:): } elsif ($target eq 'web') {
2149:): if ($env{'request.user_in_effect'}) {
2150:): &reset_problem_globals('problem');
2151:): $result .= &Apache::lonhtmlcommon::set_compute_end_time();
2152:): return $result;
2153:): }
1.319 foxr 2154: }
2155:
1.159 albertel 2156: my $status=$Apache::inputtags::status['-1'];
2157: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2158: $target eq 'tex') {
1.249 albertel 2159: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2160: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2161: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2162: &Apache::inputtags::grade;
1.324 albertel 2163: } elsif ($status eq 'NEEDS_CHECKIN') {
2164: # no need to grade, and don't want to hide data
1.249 albertel 2165: } else {
2166: # move any submission data to .hidden
2167: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2168: }
1.159 albertel 2169: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2170: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2171: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2172: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2173: # if part is zero, no <part>s existed, so we need show the current
2174: # grading status
2175: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2176: $result.= $gradestatus;
2177: }
2178: if (
1.284 albertel 2179: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2180: ($target eq 'answer') || ($target eq 'tex')
2181: ) {
1.490 raeburn 2182: if (($target ne 'tex') &&
2183: ($env{'form.answer_output_mode'} ne 'tex') &&
2184: (!$env{'form.grade_imsexport'})) {
1.254 www 2185: $result.="</form>";
1.159 albertel 2186: }
2187: if ($target eq 'web') {
1.507 raeburn 2188: #
2189: # Closing </body></html> not added by end_page().
2190: # Added separately at end of this routine, after added
2191: # <script></script> so document will be valid xhtml.
2192: #
2193: $result.= &Apache::loncommon::end_page({'discussion' => 1,
2194: 'notbody' => 1});
1.159 albertel 2195: } elsif ($target eq 'tex') {
1.178 sakharuk 2196: my $endminipage = '';
1.284 albertel 2197: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2198: $endminipage = '\end{minipage}';
2199: }
1.284 albertel 2200: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2201: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2202: } else {
1.262 sakharuk 2203: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2204: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2205: $result .= $endminipage.'\end{document} ';
2206: } else {
1.382 albertel 2207: $result .= $endminipage;
1.262 sakharuk 2208: }
1.159 albertel 2209: }
2210: }
2211: }
1.476 www 2212: if ($target eq 'web') {
1.512.2.21 raeburn 2213: $result.=&Apache::functionplotresponse::init_script();
2214: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2215: my ($symb) = &Apache::lonnet::whichuser();
2216: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2217: ($status eq 'CAN_ANSWER')) {
2218: unless (@Apache::inputtags::partlist > 1) {
2219: $result.= <<"ENDJS";
2220: <script type="text/javascript">
2221: // <![CDATA[
2222: \$(document).ready(function() {
2223: \$('#LC_randomizetry_header').css('display','block');
2224: });
2225: // ]]>
2226: </script>
2227: ENDJS
2228: }
2229: }
2230: }
1.476 www 2231: }
1.159 albertel 2232: if ($target eq 'grade') {
2233: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2234: &finalize_storage();
2235: }
1.284 albertel 2236: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2237: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2238: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2239: # normally we get it from above, but in CSTR
1.172 albertel 2240: # we always show answer mode too.
1.159 albertel 2241: }
2242: } elsif ($target eq 'meta') {
2243: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2244: @Apache::inputtags::response=();
1.159 albertel 2245: $result=&Apache::response::mandatory_part_meta;
2246: }
1.215 albertel 2247: $result.=&Apache::response::meta_part_order();
1.258 albertel 2248: $result.=&Apache::response::meta_response_order();
1.159 albertel 2249: } elsif ($target eq 'edit') {
2250: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2251: $result .= &problem_edit_footer();
1.320 albertel 2252: } elsif ($target eq 'modified') {
2253: $result .= $token->[2];
1.159 albertel 2254: }
1.155 albertel 2255:
1.284 albertel 2256: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2257: &Apache::inputtags::check_for_duplicate_ids();
2258: }
1.204 albertel 2259:
2260: &reset_problem_globals('problem');
1.159 albertel 2261:
1.502 foxr 2262: #
2263: # This shouild be just above the return so that the
2264: # time put in the javascript is as late as possible in the
2265: # computation:
2266: #
2267: if ($target eq 'web') {
1.512.2.24.2. (raeburn 2268:): $result .= &Apache::lonhtmlcommon::dash_to_minus_js().
2269:): &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2270: #
2271: # Closing tags delayed so any <script></script> tags
2272: # not in head can appear inside body, for valid xhtml.
2273: #
2274: $result .= "</body>\n</html>";
1.502 foxr 2275: }
1.159 albertel 2276: return $result;
1.48 albertel 2277: }
2278:
1.108 albertel 2279:
1.48 albertel 2280: sub start_library {
1.159 albertel 2281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2282: my ($result,$form_tag_start);
1.371 albertel 2283: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2284: &init_problem_globals('library');
2285: $Apache::lonhomework::type='problem';
2286: }
1.159 albertel 2287: if ($target eq 'edit') {
1.343 albertel 2288: ($result,$form_tag_start)=
2289: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2290: 'Edit');
2291: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2292: my $temp=&Apache::edit::insertlist($target,$token);
2293: $result.=$temp;
2294: } elsif ($target eq 'modified') {
2295: $result=$token->[4];
1.340 albertel 2296: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2297: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2298: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2299: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2300: ($result,$form_tag_start)=
2301: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2302: $name);
1.479 raeburn 2303: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2304: $result.=" \n $form_tag_start".
1.159 albertel 2305: '<input type="hidden" name="submitted" value="yes" />';
2306: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2307: if ($Apache::lonhomework::type eq 'practice') {
2308: $result.= '<input type="submit" name="resetdata" '.
2309: 'value="'.&mt('New Problem Variation').'" />'.
2310: &practice_problem_header().'<hr />';
2311: }
1.159 albertel 2312: }
2313: return $result;
1.48 albertel 2314: }
2315:
2316: sub end_library {
1.159 albertel 2317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2318: my $result='';
2319: if ($target eq 'edit') {
2320: $result=&problem_edit_footer();
1.371 albertel 2321: } elsif ($target eq 'web'
2322: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2323: && $env{'request.state'} eq "construct") {
1.349 albertel 2324: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2325: } elsif ($target eq 'meta') {
2326: $result.=&Apache::response::meta_response_order();
1.159 albertel 2327: }
1.371 albertel 2328: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2329: &reset_problem_globals('library');
2330: }
1.159 albertel 2331: return $result;
1.197 www 2332: }
2333:
2334: sub start_definetag {
1.326 albertel 2335: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2336:
2337: my $result;
2338:
2339: my $name = $token->[2]->{'name'};
1.326 albertel 2340: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2341: if ($target eq 'web') {
2342: if ($name=~/^\//) {
2343: $result=
2344: '<br /><table class="LC_sty_end"><tr><th>'.
2345: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2346: } else {
2347: $result=
2348: '<br /><table class="LC_sty_begin"><tr><th>'.
2349: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2350: }
2351: $skip = &HTML::Entities::encode($skip, '<>&"');
2352: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2353: }
2354: return $result;
2355: }
2356:
2357: sub end_definetag {
2358: return '';
1.1 albertel 2359: }
2360:
2361: sub start_block {
1.201 albertel 2362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2363:
2364: my $result;
1.1 albertel 2365:
1.339 albertel 2366: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2367: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2368: my $code = $token->[2]->{'condition'};
1.385 albertel 2369: if (defined($code) && $code ne '') {
1.137 albertel 2370: if (!$Apache::lonxml::default_homework_loaded) {
2371: &Apache::lonxml::default_homework_load($safeeval);
2372: }
1.131 albertel 2373: $result = &Apache::run::run($code,$safeeval);
2374: &Apache::lonxml::debug("block :$code: returned :$result:");
2375: } else {
2376: $result='1';
2377: }
2378: if ( ! $result ) {
1.201 albertel 2379: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2380: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2381: }
2382: $result='';
2383: } elsif ($target eq 'edit') {
2384: $result .=&Apache::edit::tag_start($target,$token);
2385: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2386: $token,40);
2387: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2388: } elsif ($target eq 'modified') {
2389: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2390: $safeeval,'condition');
2391: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2392: }
1.131 albertel 2393: return $result;
1.1 albertel 2394: }
2395:
2396: sub end_block {
1.167 www 2397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2398: my $result;
2399: if ($target eq "edit") {
2400: $result.= &Apache::edit::tag_end($target,$token,'');
2401: }
2402: return $result;
2403: }
1.500 foxr 2404: #
2405: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2406: # ...
2407: # </languageblock>
2408: #
2409: # This declares the intent to provide content that can be rendered in the
2410: # set of languages in the include specificatino but not in the exclude
2411: # specification. If a currently preferred language is in the include list
2412: # the content in the <languageblock>...</languageblock> is rendered
2413: # If the currently preferred language is in the exclude list,
2414: # the content in the <languageblock>..></languageblock is not rendered.
2415: #
2416: # Pathalogical case handling:
2417: # - Include specified, without the preferred language but exclude specified
2418: # also without the preferred langauge results in rendering the block.
2419: # - Exclude specified without include and excluden not containing a
2420: # preferred language renders the block.
2421: # - Include and exclude both specifying the preferred language does not
2422: # render the block.
2423: # - If neither include/exclude is specified, the block gets rendered.
2424: #
2425: # This tag has no effect when target is in {edit, modified}
2426: #
1.167 www 2427: sub start_languageblock {
1.201 albertel 2428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2429:
1.500 foxr 2430: my $result = '';
1.167 www 2431:
1.339 albertel 2432: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2433: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2434: my $include = $token->[2]->{'include'};
2435: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2436: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2437:
2438: # This should not even happen, since we should at least have the server language
2439:
2440: if (!$preferred_languages[0]) {
2441: $preferred_languages[0]='en';
2442: }
2443:
2444: # Now loop over all languages in order of preference
2445:
2446: my $render;
1.398 www 2447: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2448:
2449: # If neither include/nor exlude is present the block is going
2450: # to get rendered.
2451:
1.399 www 2452: my $found=0;
1.500 foxr 2453: $render=1;
2454:
2455: # If include is specified, don't render the block
2456: # unless the preferred language is included in the set.
2457:
1.398 www 2458: if ($include) {
1.500 foxr 2459: $render=0;
1.398 www 2460: foreach my $included_language (split(/\,/,$include)) {
2461: if ($included_language eq $preferred_language) {
1.500 foxr 2462: $render=1;
1.399 www 2463: $found=1;
1.500 foxr 2464: last; # Only need to find the first.
1.398 www 2465: }
2466: }
2467: }
1.500 foxr 2468: # Do we have an exclude argument?
2469: # If so, and one of the languages matches a preferred language
2470: # inhibit rendering the block. Note that in the pathalogical case the
2471: # author has specified a preferred language in both the include and exclude
2472: # attribte exclude is preferred.
2473:
1.398 www 2474: if ($exclude) {
1.500 foxr 2475: $render=1;
1.398 www 2476: foreach my $excluded_language (split(/\,/,$exclude)) {
2477: if ($excluded_language eq $preferred_language) {
1.500 foxr 2478: $render=0;
1.399 www 2479: $found=1;
1.500 foxr 2480: last; # Only need to find the first.
1.398 www 2481: }
2482: }
2483: }
1.500 foxr 2484: if ($found) {
2485: last; # Done on any match of include or exclude.
2486: }
1.398 www 2487: }
1.500 foxr 2488: # If $render not true skip the entire block until </languageblock>
2489: #
2490:
2491: if ( ! $render ) {
1.201 albertel 2492: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2493: $style);
2494: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2495: }
1.500 foxr 2496: # If $render is true, we've not skipped the contents of the <languageglock>
2497: # and the normal loncapa processing flow will render it as a matter of course.
2498:
1.167 www 2499: } elsif ($target eq 'edit') {
2500: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2501: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2502: $token,40);
1.211 albertel 2503: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2504: $token,40);
2505: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2506: } elsif ($target eq 'modified') {
2507: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2508: $safeeval,'include',
2509: 'exclude');
1.167 www 2510: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2511: }
2512: return $result;
2513: }
2514:
2515: sub end_languageblock {
1.170 www 2516: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2517: my $result;
1.201 albertel 2518: if ($target eq "edit") {
1.170 www 2519: $result.= &Apache::edit::tag_end($target,$token,'');
2520: }
2521: return $result;
2522: }
1.500 foxr 2523: # languagblock specific tags:
2524: {
2525: # For chunks of a resource that has translations, this hash contains
2526: # the translations available indexed by language name.
2527: #
2528:
2529: my %available_texts;
1.170 www 2530:
1.500 foxr 2531: # <translated> starts a block of a resource that has multiple translations.
2532: # See the <lang> tag as well.
2533: # When </translated> is encountered if there is a translation for the
2534: # currently preferred language, that is rendered inthe web/tex/webgrade
2535: # targets. Otherwise, the default text is rendered.
2536: #
2537: # Note that <lang> is only registered for the duration of the
2538: # <translated>...</translated> block
2539: #
2540: # Pathalogical case handling:
2541: # - If there is no <lang> that specifies a 'default' and there is no
2542: # translation that matches a preferred language, nothing is rendered.
2543: # - Nested <translated>...</translated> might be linguistically supported by
2544: # XML due to the stack nature of tag registration(?) however the rendered
2545: # output will be incorrect because there is only one %available_texts
2546: # has and end_translated clears it.
2547: # - Material outside of a <lang>...</lang> block within the
2548: # <translated>...<translated> block won't render either e.g.:
2549: # <translated>
2550: # The following will be in your preferred langauge:
2551: # <lang which='en'>
2552: # This section in english
2553: # </lang>
2554: # <lang which='sgeiso'>
2555: # Hier es ist auf Deutsch.
2556: # </lang>
2557: # <lang which='sfriso'>
2558: # En Francais
2559: # </lang>
2560: # </translated>
2561: #
2562: # The introductory text prior to the first <lang> tag is not rendered.
2563: #
1.397 albertel 2564: sub start_translated {
2565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2566: &Apache::lonxml::register('Apache::structuretags',('lang'));
2567: undef(%available_texts);
2568: }
2569:
2570: sub end_translated {
2571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2572: my $result;
2573: #show the translation on viewable targets
2574: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2575: # or non-viewable targets, if it's embedded in something that
2576: # wants the output
2577: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2578: && &Apache::lonxml::in_redirection() ) ) {
2579: my @possibilities = keys(%available_texts);
2580: my $which =
2581: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2582: if ($target eq 'tex') {
2583: $result = &select_hyphenation($which);
2584: }
2585: $result .= $available_texts{$which};
2586: if ($target eq 'tex') {
2587: $result .= &select_metadata_hyphenation(); # Restore original language.
2588: }
1.397 albertel 2589: }
2590: undef(%available_texts);
2591: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2592: return $result;
2593: }
2594:
1.500 foxr 2595: # <lang [which='language-name'] [other='lang1,lang2...']>
2596: # Specifies that the block contained within it is a translation
2597: # for a specific language specified by the 'which' attribute. The
2598: # 'other' attribute can be used by itself or in conjunction with
2599: # which to specify this tag _may_ be used as a translation for some
2600: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2601: # specifying that the block provides a translation for US (primary)
2602: # Canadian, Australian and UK Englush.
2603: #
2604: # Comment: this seems a bit silly why not just support a list of languages
2605: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2606: #
2607: # Effect:
2608: # The material within the <lang>..</lang> block is stored in the
2609: # specified set of $available_texts hash entries, the appropriate one
2610: # is selected at </translated> time.
2611: #
2612: # Pathalogical case handling:
2613: # If a language occurs multiple times within a <translated> block,
2614: # only the last one is rendered e.g.:
2615: #
2616: # <translated>
2617: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2618: # Red green color blindness is quite common affecting about 7.8% of
2619: # the male population, but onloy about .65% of the female population.
2620: # </lang>
2621: # Red green colour blindness is quite common affecting about 7.8% of
2622: # the male population, but onloy about .65% of the female population.
2623: # <lang which='seniso', other='senisoCA,senisoAU'>
2624: # </translated>
2625: #
2626: # renders the correct spelling of color (colour) for people who have specified
2627: # a preferred language that is one of the British Commonwealth languages
2628: # even though those are also listed as valid selections for the US english
2629: # <lang> block.
2630: #
1.397 albertel 2631: sub start_lang {
2632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2633: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2634: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2635: &Apache::lonxml::startredirection();
2636: }
2637: return '';
2638: }
2639:
2640: sub end_lang {
2641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2642: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2643: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2644: my $result = &Apache::lonxml::endredirection();
2645: my $which = &Apache::lonxml::get_param('which',$parstack,
2646: $safeeval);
1.431 raeburn 2647: if ($which=~/\w/) {
2648: $available_texts{$which} = $result;
2649: }
2650: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2651: $safeeval);
2652: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2653: if ($language=~/\w/) {
2654: $available_texts{$language} = $result;
2655: }
1.427 bisitz 2656: }
2657:
1.397 albertel 2658: }
2659: return '';
2660: }
1.500 foxr 2661: } # end langauge block specific tags.
2662:
1.397 albertel 2663:
1.170 www 2664: sub start_instructorcomment {
1.201 albertel 2665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2666:
2667: my $result;
2668:
1.339 albertel 2669: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2670: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2671: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2672: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2673: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2674: $parser,$style);
1.170 www 2675: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2676: }
2677: $result='';
2678: } elsif ($target eq 'edit') {
2679: $result .=&Apache::edit::tag_start($target,$token);
2680: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2681: }
2682: return $result;
2683: }
2684:
2685: sub end_instructorcomment {
1.159 albertel 2686: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2687: my $result;
2688: if ($target eq "edit") {
2689: $result.= &Apache::edit::tag_end($target,$token,'');
2690: }
2691: return $result;
1.4 tsai 2692: }
2693:
2694: sub start_while {
1.326 albertel 2695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2696:
1.160 albertel 2697: my $result;
1.339 albertel 2698: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2699: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2700: my $code = $token->[2]->{'condition'};
1.4 tsai 2701:
1.160 albertel 2702: push( @Apache::structuretags::whileconds, $code);
2703: if (!$Apache::lonxml::default_homework_loaded) {
2704: &Apache::lonxml::default_homework_load($safeeval);
2705: }
2706: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2707: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2708: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2709: push( @Apache::structuretags::whileline, $token->[5]);
2710: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2711: if ( $result ) {
2712: &Apache::lonxml::newparser($parser,\$bodytext);
2713: }
2714: } elsif ($target eq 'edit') {
2715: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2716: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2717: $token,40);
2718: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2719: } elsif ($target eq 'modified') {
2720: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2721: $safeeval,'condition');
2722: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2723: }
1.160 albertel 2724: return $result;
1.4 tsai 2725: }
2726:
2727: sub end_while {
1.159 albertel 2728: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2729: my $result;
2730:
1.339 albertel 2731: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2732: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2733: my $code = pop(@Apache::structuretags::whileconds);
2734: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2735: my $line = pop(@Apache::structuretags::whileline);
2736: my $return = &Apache::run::run($code,$safeeval);
2737: my $starttime=time;
2738: my $error=0;
2739: while ($return) {
2740: if (time-$starttime >
2741: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2742: $return = 0; $error=1; next;
1.161 albertel 2743: }
2744: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2745: if ($target eq 'grade' || $target eq 'answer' ||
2746: $target eq 'analyze') {
2747: # grade/answer/analyze should produce no output but if we
2748: # are redirecting, the redirecter should know what to do
2749: # with the output
2750: if (!$Apache::lonxml::redirection) { undef($result); }
2751: }
1.161 albertel 2752: $return = &Apache::run::run($code,$safeeval);
2753: }
1.512.2.5 raeburn 2754: if ($error) {
2755: &Apache::lonxml::error(
2756: '<pre>'
2757: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2758: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2759: .&mt('This occurred while running <while> on line [_1].',
2760: $line)
2761: .'</pre>');
2762: }
1.160 albertel 2763: } elsif ($target eq "edit") {
2764: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2765: }
1.160 albertel 2766: return $result;
1.1 albertel 2767: }
1.6 tsai 2768:
1.160 albertel 2769: # <randomlist show="1">
1.6 tsai 2770: # <tag1>..</tag1>
2771: # <tag2>..</tag2>
2772: # <tag3>..</tag3>
1.160 albertel 2773: # ...
1.6 tsai 2774: # </randomlist>
2775: sub start_randomlist {
1.326 albertel 2776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2777: my $result;
1.339 albertel 2778: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2779: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2780: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2781: my $b_parser= HTML::LCParser->new(\$body);
2782: $b_parser->xml_mode(1);
2783: $b_parser->marked_sections(1);
1.159 albertel 2784: my $b_tok;
2785: my @randomlist;
2786: my $list_item;
2787: while($b_tok = $b_parser->get_token() ) {
2788: if($b_tok->[0] eq 'S') { # start tag
2789: # get content of the tag until matching end tag
2790: # get all text upto the matching tag
2791: # and push the content into @randomlist
2792: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2793: $b_parser);
2794: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2795: push(@randomlist,$list_item);
2796: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2797: # $list_item</b>";
2798: }
2799: if($b_tok->[0] eq 'T') { # text
2800: # what to do with text in between tags?
2801: # print "<b>TEXT $b_tok->[1]</b><br />";
2802: }
2803: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2804: # print "<b>END-TAG $b_tok->[1]</b><br />";
2805: # }
2806: }
1.303 albertel 2807: if (@randomlist) {
2808: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2809: if ($env{'form.code_for_randomlist'}) {
2810: &Apache::structuretags::shuffle(\@idx_arr,$target);
2811: undef($env{'form.code_for_randomlist'});
2812: } else {
2813: &Apache::structuretags::shuffle(\@idx_arr);
2814: }
1.303 albertel 2815: my $bodytext = '';
2816: my $show=$#randomlist;
2817: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2818: $showarg--;
2819: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2820: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2821: my @currlist;
2822: my $part = $Apache::inputtags::part;
2823: if ($part ne '') {
2824: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2825: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2826: if (!(grep(/^\Q$part\E$/,@currlist))) {
2827: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2828: }
2829: } else {
2830: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2831: }
2832: }
2833: }
1.512.2.9 raeburn 2834: for my $i (0 .. $show) {
2835: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2836: }
2837: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2838: }
2839: } elsif ($target eq 'edit' ) {
2840: $result .=&Apache::edit::tag_start($target,$token);
2841: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2842: $token,5);
2843: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2844: } elsif ($target eq 'modified' ) {
2845: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2846: $safeeval,'show');
2847: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2848: }
2849: return $result;
1.7 tsai 2850: }
2851:
2852: sub shuffle {
1.512.2.14 raeburn 2853: my ($a,$target) = @_;
1.7 tsai 2854: my $i;
1.303 albertel 2855: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2856: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2857: for($i=@$a;--$i;) {
2858: my $j=int(&Math::Random::random_uniform() * ($i+1));
2859: next if $i == $j;
2860: @$a[$i,$j] = @$a[$j,$i];
2861: }
1.251 albertel 2862: &Apache::response::poprandomnumber();
1.7 tsai 2863: }
1.6 tsai 2864: }
2865:
2866: sub end_randomlist {
1.159 albertel 2867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2868: my $result;
2869: if ($target eq 'edit' ) {
2870: $result=&Apache::edit::tag_end($target,$token,
2871: 'End Randomly Parsed Block');
2872: }
2873: return $result;
1.6 tsai 2874: }
2875:
1.283 albertel 2876: sub ordered_show_check {
2877: my $last_part=$Apache::inputtags::partlist[-2];
2878: my $in_order=
2879: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2880: my $in_order_show=1;
2881: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2882: $in_order_show=&Apache::response::check_status($last_part);
2883: }
2884: return $in_order_show;
2885: }
2886:
1.469 www 2887:
2888: sub start_startpartmarker {
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 start of a part. Place end marker below 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_startpartmarker {
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: sub start_endpartmarker {
2908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2909: my $result='';
2910: if ($target eq 'edit') {
2911: $result=&Apache::edit::tag_start($target,$token);
2912: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2913: $result.=&Apache::edit::end_table();
2914:
2915: }
2916: return $result;
2917: }
2918:
2919: sub end_endpartmarker {
2920: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2921: my @result;
2922: if ($target eq 'edit') { $result[1]='no'; }
2923: return @result;
2924: }
2925:
2926:
2927:
2928:
2929:
1.11 albertel 2930: sub start_part {
1.326 albertel 2931: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2932: if (!$Apache::lonxml::metamode) {
2933: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2934: # duedates.
2935: }
1.159 albertel 2936: my $result='';
1.386 albertel 2937: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2938: $Apache::inputtags::part=$id;
1.177 albertel 2939: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2940: $Apache::inputtags::leniency='';
1.177 albertel 2941: @Apache::inputtags::response=();
1.159 albertel 2942: @Apache::inputtags::previous=();
2943: @Apache::inputtags::previous_version=();
1.405 albertel 2944: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2945: &Apache::response::reset_params();
2946:
1.159 albertel 2947: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2948: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2949: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2950: if ($Apache::lonhomework::type eq 'randomizetry') {
2951: my $rndseed=&setup_rndseed($safeeval,$target);
2952: if (($target eq 'grade') && &Apache::response::submitted()) {
2953: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2954: }
2955: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2956: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2957: }
1.283 albertel 2958: my $in_order_show=&ordered_show_check();
1.214 albertel 2959: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2960: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2961: &Apache::run::run($expression,$safeeval);
1.159 albertel 2962:
2963: if ($target eq 'meta') {
1.224 www 2964: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2965: return &Apache::response::mandatory_part_meta.
2966: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2967: } elsif ($target eq 'web' || $target eq 'grade' ||
2968: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2969: if ($hidden || !$in_order_show) {
1.326 albertel 2970: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2971: } else {
2972: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2973: push (@Apache::inputtags::status,$status);
2974: my $expression='$external::datestatus="'.$status.'";';
2975: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2976: &Apache::run::run($expression,$safeeval);
1.284 albertel 2977: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2978: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2979: }
1.216 albertel 2980: if (( $status eq 'CLOSED' ) ||
2981: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2982: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2983: ( $status eq 'BANNED') ||
2984: ( $status eq 'UNAVAILABLE') ||
2985: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2986: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2987: $style);
1.159 albertel 2988: if ( $target eq "web" ) {
1.211 albertel 2989: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2990: } elsif ( $target eq 'tex' ) {
1.284 albertel 2991: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2992: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2993: } else {
1.211 albertel 2994: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2995: }
1.159 albertel 2996: }
2997: } else {
2998: if ($target eq 'tex') {
1.284 albertel 2999: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 3000: if ($$tagstack[-2] eq 'td') {
1.388 foxr 3001: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 3002: } else {
3003: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
3004: }
1.195 sakharuk 3005: }
1.159 albertel 3006: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 3007: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 3008: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 3009: my $allow_print_points = 0;
3010: foreach my $partial_key (@allkeys) {
1.230 albertel 3011: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 3012: if ($1 ne '0') {$allow_print_points=1;}
3013: }
3014: }
1.275 albertel 3015: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
3016: if (defined($maxtries) && $maxtries < 0) {
3017: $allow_print_points=0;
3018: }
1.302 albertel 3019: if (lc($env{'course.'.$env{'request.course.id'}.
3020: '.disableexampointprint'}) eq 'yes') {
3021: $allow_print_points=0;
3022: }
1.463 foxr 3023: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3024: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3025:
3026: }
1.233 www 3027: } elsif ($target eq 'web') {
1.479 raeburn 3028: if ($status eq 'CAN_ANSWER') {
3029: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3030: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 3031: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3032: ($Apache::lonhomework::randomizetrypart)) &&
3033: ($Apache::lonhomework::type ne 'randomizetry')) {
3034: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3035: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3036: $Apache::lonhomework::randomizetrypart = 1;
3037: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3038: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3039: }
3040: }
1.475 raeburn 3041: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3042: }
3043: }
3044: }
3045: } elsif ($target eq 'edit') {
3046: $result.=&Apache::edit::tag_start($target,$token);
3047: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3048: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3049: ' '.
3050: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3051: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3052: } elsif ($target eq 'modified') {
3053: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3054: $safeeval,'id','display');
1.159 albertel 3055: if ($constructtag) {
1.225 albertel 3056: #limiting ids to only letters numbers, and space
1.224 www 3057: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3058: $result = &Apache::edit::rebuild_tag($token);
3059: }
3060: }
3061: return $result;
1.11 albertel 3062: }
3063:
3064: sub end_part {
1.159 albertel 3065: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3066: &Apache::lonxml::debug("in end_part $target ");
3067: my $status=$Apache::inputtags::status['-1'];
3068: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3069: my $in_order_show=&ordered_show_check();
1.321 albertel 3070: my $result;
3071: if (!$Apache::lonxml::metamode) {
3072: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3073: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3074: }
1.312 albertel 3075: if ($target eq 'grade') {
1.249 albertel 3076: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3077: !$hidden && $in_order_show) {
1.311 foxr 3078: $result.=&Apache::inputtags::grade;
1.249 albertel 3079: } else {
3080: # move any submission data to .hidden
3081: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3082: }
1.283 albertel 3083: } elsif (($target eq 'web' || $target eq 'tex') &&
3084: !$hidden && $in_order_show) {
1.159 albertel 3085: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3086: $target);
1.490 raeburn 3087: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3088: ($env{'form.grade_imsexport'})) {
1.212 albertel 3089: $gradestatus='';
3090: }
1.311 foxr 3091: $result.=$gradestatus;
1.512.2.24.2. (raeburn 3092:): if ($$tagstack[-2] eq 'td' and $target eq 'tex') {
3093:): if (not $env{'form.problem_split'}=~/yes/) {
3094:): $result.='\end{minipage}';
3095:): }
3096:): }
1.181 albertel 3097: } elsif ($target eq 'edit') {
1.311 foxr 3098: $result.=&Apache::edit::end_table();
1.322 albertel 3099: } elsif ($target eq 'modified') {
3100: $result .= $token->[2];
1.159 albertel 3101: }
3102: pop @Apache::inputtags::status;
3103: $Apache::inputtags::part='';
1.512.2.10 raeburn 3104: $Apache::inputtags::leniency='';
1.295 albertel 3105: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3106: return $result;
1.11 albertel 3107: }
1.1 albertel 3108:
1.25 albertel 3109: sub start_preduedate {
1.326 albertel 3110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3111: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3112: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3113: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3114: if (!$Apache::lonhomework::scantronmode &&
3115: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3116: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3117: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3118: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3119: }
1.24 albertel 3120: }
1.159 albertel 3121: return '';
1.24 albertel 3122: }
3123:
1.25 albertel 3124: sub end_preduedate {
1.159 albertel 3125: return '';
1.24 albertel 3126: }
3127:
1.369 foxr 3128: # In all the modes where <postanswerdate> text is
3129: # displayable, all we do is eat up the text between the start/stop
3130: # tags if the conditions are not right to display it.
1.25 albertel 3131: sub start_postanswerdate {
1.326 albertel 3132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3133: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3134: &Apache::lonnet::allowed('pav',
3135: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3136: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3137: $target eq 'tex' ) {
1.300 albertel 3138: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3139: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3140: (($target eq 'tex') && !$pav)) {
1.326 albertel 3141: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3142: }
3143: }
3144: return '';
1.24 albertel 3145: }
3146:
1.25 albertel 3147: sub end_postanswerdate {
1.159 albertel 3148: return '';
1.24 albertel 3149: }
3150:
1.25 albertel 3151: sub start_notsolved {
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' ||
1.339 albertel 3154: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3155: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3156: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3157: if ($gradestatus =~ /^correct/ &&
3158: &Apache::response::show_answer()) {
1.159 albertel 3159: &Apache::lonxml::debug("skipping");
1.326 albertel 3160: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3161: }
1.24 albertel 3162: }
1.159 albertel 3163: return '';
1.24 albertel 3164: }
3165:
1.25 albertel 3166: sub end_notsolved {
1.159 albertel 3167: return '';
1.24 albertel 3168: }
3169:
3170: sub start_solved {
1.326 albertel 3171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3172: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3173: $target eq 'tex') {
3174: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3175: if ($gradestatus !~ /^correct/ ||
3176: !&Apache::response::show_answer()) {
1.326 albertel 3177: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3178: }
1.24 albertel 3179: }
1.159 albertel 3180: return '';
1.24 albertel 3181: }
3182:
3183: sub end_solved {
1.248 albertel 3184: return '';
3185: }
3186:
3187: sub start_problemtype {
1.326 albertel 3188: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3189: my $result;
1.339 albertel 3190: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3191: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3192: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3193: if (!defined($mode)) { $mode='show'; }
3194: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3195: my $found=0;
3196: foreach my $type (split(',',$for)) {
3197: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3198: }
3199: if ($mode eq 'show' && !$found) {
1.326 albertel 3200: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3201: }
3202: if ($mode eq 'hide' && $found) {
1.326 albertel 3203: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3204: }
3205: } elsif ($target eq 'edit') {
3206: $result .=&Apache::edit::tag_start($target,$token);
3207: $result.=&Apache::edit::select_arg('Mode:','mode',
3208: [['show','Show'],
3209: ['hide','Hide']]
3210: ,$token);
3211: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 3212: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 3213: ['survey','Survey'],
1.465 raeburn 3214: ['surveycred','Survey (with credit)'],
3215: ['anonsurvey','Anonymous Survey'],
3216: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3217: ['problem','Homework Problem'],
1.479 raeburn 3218: ['practice','Practice Problem'],
3219: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3220: ,$token);
3221: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3222: } elsif ($target eq 'modified') {
3223: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3224: $safeeval,'mode','for');
3225: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3226: }
3227: return $result;
3228: }
3229:
3230: sub end_problemtype {
1.159 albertel 3231: return '';
1.24 albertel 3232: }
1.34 albertel 3233:
3234: sub start_startouttext {
1.159 albertel 3235: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3236: my @result=(''.'');
3237: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3238:
3239: my $nesting =
3240: &Apache::lonxml::set_state('outtext',
3241: &Apache::lonxml::get_state('outtext')+1);
3242: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3243: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3244: }
1.159 albertel 3245: return (@result);
1.34 albertel 3246: }
1.159 albertel 3247:
1.34 albertel 3248: sub end_startouttext {
1.326 albertel 3249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3250: my $result='';
3251: my $text='';
3252: if ($target eq 'edit') {
1.424 foxr 3253: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3254: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3255: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3256: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3257: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3258: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3259: .'</span></td>'
1.512.2.12 raeburn 3260: .'<td><span id="math_'.$areaid.'">';
3261: if ($env{'environment.nocodemirror'}) {
3262: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3263: } else {
3264: $result.=' ';
3265: }
3266: $result.='</span></td>'
1.474 raeburn 3267: .'<td>'
3268: .&Apache::edit::insertlist($target,$token)
3269: .'</td>'
1.512.2.5 raeburn 3270: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3271: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3272: &Apache::edit::end_row().
1.362 albertel 3273: &Apache::edit::start_spanning_row()."\n".
1.255 www 3274: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3275: }
3276: if ($target eq 'modified') {
1.219 albertel 3277: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3278: }
3279: if ($target eq 'tex') {
3280: $result .= '\noindent ';
3281: }
3282: return $result;
1.34 albertel 3283: }
1.159 albertel 3284:
1.34 albertel 3285: sub start_endouttext {
1.159 albertel 3286: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3287: my $result='';
3288: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3289: if ($target eq "modified") {
3290: $result='<endouttext />'.
1.377 albertel 3291: &Apache::edit::handle_insertafter('startouttext');
3292: }
1.404 albertel 3293:
3294: my $nesting =
3295: &Apache::lonxml::set_state('outtext',
3296: &Apache::lonxml::get_state('outtext')-1);
3297: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3298: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3299: &Apache::lonxml::set_state('outtext', 0);
3300: }
1.159 albertel 3301: return $result;
1.34 albertel 3302: }
1.159 albertel 3303:
1.34 albertel 3304: sub end_endouttext {
1.159 albertel 3305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3306: my @result=('','');
3307: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3308: return (@result);
1.34 albertel 3309: }
1.159 albertel 3310:
1.45 albertel 3311: sub delete_startouttext {
1.326 albertel 3312: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3313: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3314: my $text=$$parser['-1']->get_text("/endouttext");
3315: my $ntoken=$$parser['-1']->get_token();
3316: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3317: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3318: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3319: # they did the last time round
3320: &Apache::lonxml::increasedepth($ntoken);
3321: &Apache::lonxml::decreasedepth($ntoken);
3322: return 1;
1.193 www 3323: }
3324:
3325: sub start_simpleeditbutton {
3326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3327: my $result='';
1.284 albertel 3328: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3329: ($target eq 'web') &&
1.330 albertel 3330: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3331: my $url=$env{'request.noversionuri'};
1.193 www 3332: $url=~s/\?.*$//;
1.367 albertel 3333: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3334: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3335: # $result='<p class="LC_warning">'
3336: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3337: # .&Apache::loncommon::help_open_topic('Caching')
3338: # .'</p>';
1.486 www 3339: $result.=&Apache::loncommon::head_subbox(
3340: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3341: .&Apache::lonhtmlcommon::add_item_funclist(
3342: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3343: .&mt('Edit').'</a>')
1.486 www 3344: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3345:
1.193 www 3346: }
3347: return $result;
3348: }
3349:
3350: sub end_simpleeditbutton {
3351: return '';
1.45 albertel 3352: }
1.34 albertel 3353:
1.428 raeburn 3354: sub practice_problem_header {
3355: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3356: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3357: '</span>';
3358: }
3359:
1.479 raeburn 3360: sub randomizetry_problem_header {
1.512.2.21 raeburn 3361: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3362: my ($header,$text);
3363: if ($reqtries > 1) {
3364: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3365: if (($problemstatus eq 'no') ||
3366: ($problemstatus eq 'no_feedback_ever')) {
3367: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3368: } else {
3369: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3370: }
3371: } else {
3372: $header = &mt('New Problem Variation Each Try');
3373: if (($problemstatus eq 'no') ||
3374: ($problemstatus eq 'no_feedback_ever')) {
3375: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3376:
3377: } else {
3378: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3379: }
3380: }
1.512.2.21 raeburn 3381: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3382: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3383: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3384: } else {
3385: return '<h3 class="LC_info">'.$header.'</h3>'.
3386: '<span class="LC_info">'.$text.'</span><hr />';
3387: }
1.479 raeburn 3388: }
3389:
3390: sub randomizetry_part_header {
3391: my ($problemstatus,$reqtries,$num) = @_;
3392: my ($header,$text);
3393: if ($reqtries eq 'none') {
3394: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3395: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3396: } elsif ($reqtries > 1) {
3397: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3398: if (($problemstatus eq 'no') ||
3399: ($problemstatus eq 'no_feedback_ever')) {
3400: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3401: } else {
3402: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3403: }
3404: } else {
3405: $header = &mt('New Question Variation For Each Try');
3406: if (($problemstatus eq 'no') ||
3407: ($problemstatus eq 'no_feedback_ever')) {
3408: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3409: } else {
3410: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3411: }
3412: }
3413: my $output;
3414: if ($num > 1) {
3415: $output .= '<hr />';
3416: }
3417: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3418: '<span class="LC_info">'.$text.'</span><br /><br />';
3419: return $output;
3420: }
3421:
1.1 albertel 3422: 1;
3423: __END__
1.435 jms 3424:
3425: =pod
3426:
3427: =back
3428:
3429: =cut
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