Annotation of loncom/homework/structuretags.pm, revision 1.568
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.568 ! raeburn 4: # $Id: structuretags.pm,v 1.567 2019/11/04 20:47:18 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.553 damieng 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','print','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
1.553 damieng 195: sub start_print {
196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
197: if ($target ne 'edit' && $target ne 'modified') {
198: if ($target ne 'tex') {
199: my $skip = &Apache::lonxml::get_all_text("/print",$parser,$style);
200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
201: }
202: } elsif ($target eq "edit") {
203: my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/print",$parser);
204: my $result = &Apache::edit::tag_start($target,$token);
205: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
206: return $result;
207: } elsif ($target eq "modified") {
208: return $token->[4].&Apache::edit::modifiedfield("/print",$parser);
209: }
210: return '';
211: }
212:
213: sub end_print {
214: return '';
215: }
216:
1.10 albertel 217: sub start_tex {
1.326 albertel 218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 219: my $result='';
1.383 albertel 220: if ($target ne 'edit' && $target ne 'modified') {
221: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
222: if ($target eq 'tex') {
1.434 foxr 223:
224: # If inside a table, occurrences of \\ must be removed;
225: # else the table blows up.
226:
227: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
228: $bodytext =~ s/\\\\//g;
229: }
1.432 foxr 230: return $bodytext.'{}';
1.383 albertel 231: }
232: } elsif ($target eq "edit" ) {
233: my $bodytext =
234: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
235: my $result = &Apache::edit::tag_start($target,$token);
236: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
237: return $result;
238: } elsif ( $target eq "modified" ) {
239: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 240: }
1.198 sakharuk 241: return $result;;
1.10 albertel 242: }
243:
244: sub end_tex {
1.44 ng 245: return '';
1.9 albertel 246: }
247:
1.400 albertel 248: sub homework_js {
1.531 raeburn 249: my ($postsubmit,$timeout);
250: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
1.546 raeburn 251: my $crstype = &Apache::loncommon::course_type();
252: if ($crstype eq 'Community') {
1.531 raeburn 253: $crstype = 'community';
1.546 raeburn 254: } elsif ($crstype eq 'Placement') {
255: $crstype = 'placement';
1.531 raeburn 256: } else {
257: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
258: $crstype = 'official';
259: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
260: $crstype = 'textbook';
261: } else {
262: $crstype = 'unofficial';
263: }
264: }
265: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
266: if ($postsubmit eq '') {
267: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
268: $postsubmit = $domdefs{'postsubmit'};
269: unless ($postsubmit eq 'off') {
270: $timeout = $domdefs{$crstype.'postsubtimeout'};
271: }
272: } elsif ($postsubmit eq '0') {
273: $postsubmit = 'off';
274: } elsif ($postsubmit eq '1') {
275: $postsubmit = 'on';
276: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
277: if ($timeout eq '') {
278: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
279: $timeout = $domdefs{$crstype.'postsubtimeout'};
280: }
281: }
282: if ($timeout eq '') {
283: $timeout = 60;
284: }
285: } else {
286: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
287: $postsubmit = $domdefs{'postsubmit'};
288: unless ($postsubmit eq 'off') {
289: $timeout = 60;
290: }
291: }
292: my $jstimeout = 0;
293: if ($timeout) {
294: $jstimeout = 1000 * $timeout;
295: }
1.400 albertel 296: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 297: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 298: &setmode_javascript().
1.531 raeburn 299: <<"JS";
1.400 albertel 300: <script type="text/javascript">
1.483 raeburn 301: // <![CDATA[
1.494 raeburn 302: function setSubmittedPart (part,prefix) {
303: if (typeof(prefix) == 'undefined') {
304: this.document.lonhomework.submitted.value="part_"+part;
305: } else {
306: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
307: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
308: this.document.lonhomework.elements[i].value="part_"+part;
309: }
310: }
311: }
1.400 albertel 312: }
313:
1.532 raeburn 314: function disableAutoComplete (id) {
315: var field = document.getElementById(id);
316: if (field != null && field != undefined){
317: if ('autocomplete' in field) {
318: field.autocomplete = "off";
319: } else {
320: field.setAttribute("autocomplete", "off");
321: }
322: }
323: }
324:
1.400 albertel 325: function image_response_click (which, e) {
326: init_geometry();
327: if (!e) { e = window.event; } //IE
328: var input_element = document.lonhomework.elements[which];
1.401 albertel 329: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 330: var token = token_element.value;
1.401 albertel 331: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 332: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
333: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
334: var click = x+':'+y;
335: input_element.value = click;
1.485 raeburn 336: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 337: }
1.520 raeburn 338:
339: var submithandled = 0;
1.521 raeburn 340: var keypresshandled = 0;
1.531 raeburn 341: var postsubmit = '$postsubmit';
1.520 raeburn 342:
1.531 raeburn 343: \$(document).ready(function(){
344: if (postsubmit != 'off') {
345: \$(document).keypress(function(event){
1.521 raeburn 346: var keycode = (event.keyCode ? event.keyCode : event.which);
347: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 348: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 349: keypresshandled = 1;
1.531 raeburn 350: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 351: if (idsArray.length) {
352: event.preventDefault();
353: var itemsArray = idsArray[1].split(/_/);
354: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 355: \$("#"+buttonId).trigger("click");
1.521 raeburn 356: }
357: }
358: }
359: });
360:
1.531 raeburn 361: \$(document).delegate('form :submit', 'click', function( event ) {
362: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 363: var buttonId = this.id;
1.531 raeburn 364: var timeout = $jstimeout;
1.520 raeburn 365: if (submithandled == 0) {
366: submithandled = 1;
1.531 raeburn 367: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 368: "color": "black","padding": "2px"}) ;
1.563 raeburn 369: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 370: if (buttonId != "all_submit") {
1.531 raeburn 371: \$( ".LC_status_"+buttonId ).hide();
1.563 raeburn 372: }
373: if (( "#"+buttonId+"_pressed" ).length) {
374: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.520 raeburn 375: }
1.522 raeburn 376: } else {
1.531 raeburn 377: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 378: }
1.531 raeburn 379: \$(this.form).submit();
380: \$( ".LC_hwk_submit" ).prop( "disabled", true);
381: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 382: event.preventDefault();
1.531 raeburn 383:
384: if (timeout > 0) {
385: setTimeout(function(){
386: \$( "#msg_"+buttonId ).css({"display": "none"});
1.563 raeburn 387: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
388: if (( "#"+buttonId+"_pressed" ).length) {
389: \$( "#"+buttonId+"_pressed" ).val( "" );
1.531 raeburn 390: }
391: }
392: \$( ".LC_hwk_submit" ).prop( "disabled", false);
393: \$( ".LC_textline" ).prop( "readonly", false);
394: submithandled = 0;
395: keypresshandled = 0;
396: }, timeout);
397: }
1.520 raeburn 398: return true;
399: }
400: }
401: });
1.531 raeburn 402: }
1.520 raeburn 403: });
404:
1.483 raeburn 405: // ]]>
1.400 albertel 406: </script>
407: JS
408: }
409:
1.416 raeburn 410: sub setmode_javascript {
411: return <<"ENDSCRIPT";
412: <script type="text/javascript">
1.485 raeburn 413: // <![CDATA[
1.416 raeburn 414: function setmode(form,probmode) {
1.554 damieng 415: var initial = form.problemmode.value;
1.416 raeburn 416: form.problemmode.value = probmode;
417: form.submit();
1.554 damieng 418: form.problemmode.value = initial;
1.416 raeburn 419: }
1.485 raeburn 420: // ]]>
1.416 raeburn 421: </script>
422: ENDSCRIPT
423: }
424:
1.48 albertel 425: sub page_start {
1.345 albertel 426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
427: $extra_head)=@_;
1.159 albertel 428: my %found;
1.207 albertel 429: foreach my $taginside (@$tagstack) {
1.159 albertel 430: foreach my $taglookedfor ('html','body','form') {
431: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
432: }
433: }
434:
1.343 albertel 435: if ($target eq 'tex') {
436: return
437: &Apache::londefdef::start_html($target,$token,$tagstack,
438: $parstack,$parser,$safeeval);
439: }
440:
1.474 raeburn 441: $extra_head .= &homework_js().
442: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
443: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.550 raeburn 444: my %textarea_args;
445: if (($env{'request.state'} ne 'construct') ||
446: ($env{'environment.nocodemirror'})) {
447: %textarea_args = (
1.474 raeburn 448: dragmath => 'math',
449: );
1.550 raeburn 450: }
1.474 raeburn 451: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 452: }
1.478 raeburn 453: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 454: my ($needs_upload,$partlist);
1.495 raeburn 455: my ($symb)= &Apache::lonnet::whichuser();
456: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 457: if ($is_task) {
1.495 raeburn 458: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 459: } else {
460: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 461: unless ($env{'request.state'} eq 'construct') {
462: my $navmap = Apache::lonnavmaps::navmap->new();
463: if (ref($navmap)) {
464: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 465: my $is_page;
466: if (ref($mapres)) {
467: $is_page = $mapres->is_page();
468: }
469: unless ($is_page) {
1.495 raeburn 470: $needs_upload = 1;
471: }
1.528 raeburn 472: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
475: $partlist = $res->parts();
476: }
477: }
1.495 raeburn 478: }
479: }
1.493 raeburn 480: } else {
481: unless ($env{'request.state'} eq 'construct') {
482: my $navmap = Apache::lonnavmaps::navmap->new();
483: if (ref($navmap)) {
1.495 raeburn 484: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 485: my $is_page;
486: if (ref($mapres)) {
487: $is_page = $mapres->is_page();
488: }
1.528 raeburn 489: if ($is_page) {
490: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
491: my $res = $navmap->getBySymb($symb);
492: if (ref($res)) {
493: $partlist = $res->parts();
494: }
495: }
496: } else {
1.495 raeburn 497: my $res = $navmap->getBySymb($symb);
498: if (ref($res)) {
1.528 raeburn 499: $partlist = $res->parts();
1.495 raeburn 500: if (ref($partlist) eq 'ARRAY') {
501: foreach my $part (@{$partlist}) {
502: my @types = $res->responseType($part);
503: my @ids = $res->responseIds($part);
504: for (my $i=0; $i < scalar(@ids); $i++) {
505: if ($types[$i] eq 'essay') {
506: my $partid = $part.'_'.$ids[$i];
507: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
508: $needs_upload = 1;
509: last;
510: }
1.493 raeburn 511: }
512: }
513: }
1.495 raeburn 514: }
515: }
1.493 raeburn 516: }
517: }
518: }
519: }
1.495 raeburn 520: if ($needs_upload) {
1.538 musolffc 521: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
522: .'<script type="text/javascript"
523: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 524: }
1.478 raeburn 525: }
1.425 raeburn 526:
1.344 albertel 527: my %body_args;
528: if (defined($found{'html'})) {
529: $body_args{'skip_phases'}{'head'}=1;
530: } else {
1.343 albertel 531:
1.345 albertel 532: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 533:
1.379 albertel 534: $extra_head .= &Apache::londefdef::generate_css_links();
535:
1.384 albertel 536: if ($env{'request.state'} eq 'construct') {
1.343 albertel 537: $extra_head.=&Apache::edit::js_change_detection().
538: "<script type=\"text/javascript\">\n".
539: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
540: &Apache::loncommon::browser_and_searcher_javascript().
541: "\n</script>\n";
1.525 raeburn 542: if ($target eq 'edit') {
543: $extra_head .= &Apache::edit::js_update_linknum();
544: }
1.343 albertel 545: }
1.159 albertel 546: }
1.343 albertel 547:
1.446 bisitz 548: my $pageheader = '';
1.344 albertel 549: if (defined($found{'body'})) {
550: $body_args{'skip_phases'}{'body'}=1;
551: } elsif (!defined($found{'body'})
552: && $env{'request.state'} eq 'construct') {
1.343 albertel 553: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 554: unless ($env{'form.inhibitmenu'} eq 'yes') {
555: # Breadcrumbs for Authoring Space
556: &Apache::lonhtmlcommon::clear_breadcrumbs();
557: &Apache::lonhtmlcommon::add_breadcrumb({
558: 'text' => 'Authoring Space',
559: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
560: });
561: # breadcrumbs (and tools) will be created
562: # in start_page->bodytag->innerregister
1.460 droeschl 563:
1.450 bisitz 564: # FIXME Where are we?
1.542 raeburn 565: # &Apache::lonhtmlcommon::add_breadcrumb({
566: # 'text' => 'Problem Editing', # 'Problem Testing'
567: # 'href' => '',
568: # });
569: $pageheader = &Apache::loncommon::head_subbox(
570: &Apache::loncommon::CSTR_pageheader());
571: }
572: }
1.272 albertel 573: } elsif (!defined($found{'body'})) {
1.343 albertel 574: my %add_entries;
1.159 albertel 575: my $background=&Apache::lonxml::get_param('background',$parstack,
576: $safeeval);
1.343 albertel 577: if ($background ne '' ) {
578: $add_entries{'background'} = $background;
579: }
1.344 albertel 580:
1.290 albertel 581: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
582: $safeeval);
1.446 bisitz 583: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 584:
1.446 bisitz 585: $body_args{'bgcolor'} = $bgcolor;
586: # $body_args{'no_title'} = 1;
587: $body_args{'force_register'} = 1;
588: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 589: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 590: $body_args{'only_body'} = 1;
1.518 raeburn 591: } elsif ($target eq 'web') {
592: $body_args{'print_suppress'} = 1;
1.446 bisitz 593: }
1.344 albertel 594: }
1.365 albertel 595: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 596: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
597: \%body_args);
1.446 bisitz 598: $page_start .= $pageheader;
1.462 raeburn 599: if (!defined($found{'body'})
600: && $env{'request.state'} ne 'construct'
601: && ($target eq 'web' || $target eq 'webgrade')) {
602:
603: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
604: if ($symb eq '' && !$publicuser) {
605: $page_start .= '<p class="LC_info">'
606: .&mt('Browsing resource, all submissions are temporary.')
607: .'</p>';
1.457 bisitz 608: }
1.344 albertel 609: }
610:
1.409 albertel 611: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 612: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 613: }
614: my $form_tag_start;
615: if (!defined($found{'form'})) {
1.337 albertel 616: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 617: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 618: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 619: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 620: $form_tag_start.=$uri.'" ';
621: if ($target eq 'edit') {
622: $form_tag_start.=&Apache::edit::form_change_detection();
623: }
1.493 raeburn 624: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
625: my ($path,$multiresp) =
626: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 627: if (($is_task) || ($needs_upload)) {
628: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 629: }
1.368 albertel 630: $form_tag_start.='>'."\n";
1.355 albertel 631:
632: if ($symb =~ /\S/) {
633: $symb=
634: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
635: $form_tag_start.=
1.368 albertel 636: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 637: }
1.159 albertel 638: }
1.528 raeburn 639: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 640: }
641:
1.141 matthew 642: #use Time::HiRes();
1.105 albertel 643: sub get_resource_name {
1.159 albertel 644: my ($parstack,$safeeval)=@_;
1.388 foxr 645: my $name;
1.204 albertel 646: if (defined($Apache::lonhomework::name)) {
1.388 foxr 647: $name = $Apache::lonhomework::name;
648: } else {
649: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 650: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 651: if ($name eq '') {
652: $name=&Apache::lonnet::EXT('resource.title');
653: if ($name eq 'con_lost') { $name = ''; }
654: }
655: if ($name!~/\S+/) {
656: $name=$env{'request.uri'};
657: $name=~s-.*/([^/]+)$-$1-;
658: }
659: # The name has had html tags escaped:
660:
661: $name=~s/</</gs;
662: $name=~s/>/>/gs;
663:
664: $Apache::lonhomework::name=$name;
1.204 albertel 665: }
1.159 albertel 666: return $name;
1.105 albertel 667: }
668:
669: sub setup_rndseed {
1.528 raeburn 670: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 671: my ($symb)=&Apache::lonnet::whichuser();
1.564 raeburn 672: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 673: if ($target eq 'analyze') {
674: $questiontype = $env{'form.grade_questiontype'};
675: }
676: unless (defined($questiontype)) {
677: $questiontype = $Apache::lonhomework::type;
678: }
1.564 raeburn 679: if ($Apache::lonhomework::type eq 'randomizetry') {
680: my $partfortries = $Apache::inputtags::part;
1.568 ! raeburn 681: #
! 682: # Where question type is "randomizetry" for a problem containing
! 683: # a single part (and unless type is explicitly set to not be
! 684: # "randomizetry" for that part), the number of tries used to
! 685: # determine randomization will be for that part, and randomization
! 686: # from calls to &random() in a perl script block before the part tag,
! 687: # will change based on the number of tries, and value of the
! 688: # "randomizeontries" parameter in effect for the single part.
! 689: #
1.564 raeburn 690: if (ref($probpartlist) eq 'ARRAY') {
1.568 ! raeburn 691: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
! 692: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.566 raeburn 693: $partfortries = $probpartlist->[0];
694: } else {
695: $partfortries = '';
696: }
1.564 raeburn 697: }
698: }
1.566 raeburn 699: if ($partfortries ne '') {
700: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
701: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
702: }
1.564 raeburn 703: }
1.555 raeburn 704: if (($env{'request.state'} eq "construct")
705: || ($symb eq '')
706: || ($Apache::lonhomework::type eq 'practice')
707: || ($Apache::lonhomework::history{'resource.CODE'})
708: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 709: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 710: ['rndseed']);
1.284 albertel 711: $rndseed=$env{'form.rndseed'};
1.159 albertel 712: if (!$rndseed) {
1.162 albertel 713: $rndseed=$Apache::lonhomework::history{'rndseed'};
714: if (!$rndseed) {
715: $rndseed=time;
716: }
1.555 raeburn 717: unless ($env{'form.code_for_randomlist'}) {
718: $env{'form.rndseed'}=$rndseed;
719: }
1.162 albertel 720: }
1.565 raeburn 721: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 722: ($Apache::lonhomework::type eq 'randomizetry')) {
1.564 raeburn 723: if ($numtries) {
724: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
725: my $inc = int($numtries/$reqtries);
726: $rndseed += $inc;
727: } else {
728: $rndseed += $numtries;
729: }
1.479 raeburn 730: }
1.480 raeburn 731: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 732: }
1.551 damieng 733: if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 734: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 735: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 736: srand(time);
737: $rndseed=int(rand(2100000000));
1.284 albertel 738: $env{'form.rndseed'}=$rndseed;
739: delete($env{'form.resetdata'});
740: delete($env{'form.newrandomization'});
1.159 albertel 741: }
1.488 www 742: $rndseed=~s/\,/\:/g;
743: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 744: if (defined($rndseed)) {
745: my ($c1,$c2)=split(/\:/,$rndseed);
746: unless ($c2) { $c2=0; }
747: unless (($c1==int($c1)) && ($c2==int($c2))) {
748: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
749: }
1.187 albertel 750: }
1.555 raeburn 751: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
752: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
753: $rndseed=&Apache::lonnet::rndseed();
754: undef($env{'form.CODE'});
755: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 756: $rndseed=&Apache::lonnet::rndseed();
757: }
1.479 raeburn 758: $set_safespace = 1;
759: } elsif ($questiontype eq 'randomizetry') {
760: if ($target eq 'analyze') {
761: if (defined($env{'form.grade_rndseed'})) {
762: $rndseed = $env{'form.grade_rndseed'};
763: }
764: }
765: unless (($target eq 'analyze') && (defined($rndseed))) {
766: $rndseed=&Apache::lonnet::rndseed();
1.564 raeburn 767: my $curr_try = $numtries;
1.479 raeburn 768: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
769: $curr_try ++;
770: }
771: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
772: $rndseed = $1;
773: }
774: if ($curr_try) {
775: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
776: my $inc = int(($curr_try-1)/$reqtries);
777: $rndseed += $inc;
778: } else {
779: $rndseed += $curr_try;
780: }
781: }
782: }
783: $set_safespace = 1;
1.528 raeburn 784: if ($target eq 'grade') {
785: $Apache::lonhomework::rawrndseed = $rndseed;
786: }
1.479 raeburn 787: }
788: if ($set_safespace) {
789: if ($safeeval) {
790: &Apache::lonxml::debug("Setting rndseed to $rndseed");
791: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
792: }
793: }
794: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
795: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 796: }
797: return $rndseed;
1.105 albertel 798: }
799:
1.268 albertel 800: sub remember_problem_state {
801: return '
1.284 albertel 802: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
803: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
804: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 805: }
806:
1.487 www 807: sub problem_edit_action_button {
808: my ($name,$action,$accesskey,$text,$flag)=@_;
809: my $actionscript="setmode(this.form,'$action')";
810: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
811: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
812: }
813:
1.423 www 814: sub problem_edit_buttons {
1.487 www 815: my ($mode)=@_;
1.535 droeschl 816: # Buttons that save
817: my $result = '<div style="float:right">';
818: if ($mode eq 'editxml') {
819: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
820: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
821: } else {
822: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
823: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
824: }
825: $result.="\n</div>\n";
1.487 www 826: # Buttons that do not save
1.535 droeschl 827: $result .= '<div>'.
1.487 www 828: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
829: if ($mode eq 'editxml') {
830: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
831: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 832: if ($env{'environment.nocodemirror'}) {
833: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
834: }
1.487 www 835: } else {
836: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
837: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
838: }
839: $result.="\n</div>";
840: return $result;
1.423 www 841: }
842:
843: sub problem_edit_header {
1.527 golterma 844: my ($mode)=@_;
845: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 846: &remember_problem_state('edit').'
1.527 golterma 847: <div class="LC_edit_problem_header">
848: <div class="LC_edit_problem_header_title">
849: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
850: </div><div class="LC_edit_actionbar" id="actionbar">'.
851: '<input type="hidden" name="problemmode" value="saveedit" />'.
852: &problem_edit_buttons();
853:
1.535 droeschl 854: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 855: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
856: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
857:
858: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
859: <script type="text/javascript">
860: // unless internet explorer
861: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
862: $(document).ready(
863: function() {
864: $(\'.LC_edit_actionbar\').scrollToFixed(
865: {
866: fixed: function(){
1.535 droeschl 867: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
868: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 869: }
870: }
871: );
872: }
873: );
874: }
875: </script>
876: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
877: return $return;
1.105 albertel 878: }
879:
880: sub problem_edit_footer {
1.527 golterma 881: my $resource = $env{'request.ambiguous'};
1.412 albertel 882: return '</td></tr></table><br />
883: <div class="LC_edit_problem_footer">
1.453 bisitz 884: <hr />'.
1.423 www 885: &problem_edit_buttons().'
1.459 bisitz 886: <hr style="clear:both;" />
1.527 golterma 887: <script type="text/javascript">
888: restoreState("'.$resource.'");
889: restoreScrollPosition("'.$resource.'");
890: </script>
1.412 albertel 891: </div>
892: '.
1.342 albertel 893: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 894: }
895:
1.235 albertel 896: sub option {
897: my ($value,$name) = @_;
898: my $result ="<option value='".$value."' ";
1.284 albertel 899: if ($env{'form.'.$name} eq $value) {
1.235 albertel 900: $result.=" selected='on' ";
901: }
902: $result.='>';
903: return $result;
904: }
905:
1.105 albertel 906: sub problem_web_to_edit_header {
1.159 albertel 907: my ($rndseed)=@_;
1.406 albertel 908: my $result .= '<div class="LC_edit_problem_header">';
909:
910: if (!$Apache::lonhomework::parsing_a_task) {
911: $result .=
912: '<div class="LC_edit_problem_header_title">'.
913: &mt('Problem Testing').
914: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
915: '</div>';
916: } else {
917: $result .=
918: '<div class="LC_edit_problem_header_title">'.
919: &mt('Task Testing').
920: '</div>';
921: }
922:
1.315 albertel 923: my $show_all_foils_text =
924: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 925: &mt('Show All Instances')
926: : &mt('Show All Foils');
1.315 albertel 927:
1.452 bisitz 928: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
929: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 930: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 931: $show_all.= ' /> '.$show_all_foils_text
932: .'</label></span>';
1.406 albertel 933:
934:
1.384 albertel 935:
1.406 albertel 936: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 937: if (!$Apache::lonhomework::parsing_a_task) {
938: $result.="
1.406 albertel 939: <div class='LC_edit_problem_header_row1'>
940: <span class=\"LC_nobreak\">
1.405 albertel 941: ".&mt("Problem Status:")."
1.235 albertel 942: <select name='problemstate'>
1.270 albertel 943: <option value=''></option>
1.235 albertel 944: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
945: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
946: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
947: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
948: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
949: </select>
1.406 albertel 950: </span>
951: <span class=\"LC_nobreak\">
1.405 albertel 952: ".&mt("Problem Type:")."
1.235 albertel 953: <select name='problemtype'>
1.270 albertel 954: <option value=''></option>
1.509 bisitz 955: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 956: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 957: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 958: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
959: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
960: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 961: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 962: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 963: </select>
1.406 albertel 964: </span>
965: $show_all
966: </div>
967: <div class='LC_edit_problem_header_row2'>
968: <span class=\"LC_nobreak\">
1.405 albertel 969: ".&mt("Feedback Mode:")."
1.235 albertel 970: <select name='problemstatus'>
971: <option value=''></option>
1.242 albertel 972: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 973: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 974: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 975: </select>
1.406 albertel 976: </span>
977: ";
978:
1.376 albertel 979: } elsif ($Apache::lonhomework::parsing_a_task) {
980: $result.="
1.406 albertel 981: <div class='LC_edit_problem_header_row1'>
982: <span class=\"LC_nobreak\">
1.405 albertel 983: ".&mt("Problem Status:")."
1.376 albertel 984: <select name='problemstate'>
985: <option value=''></option>
986: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
987: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
988: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
989: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
990: </select>
1.406 albertel 991: </span>
992: $show_all
993: ";
994: }
995: $result.='
996: <span class="LC_nobreak">
997: '.&mt('Apply style file: ').'
998: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
999: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1000: </span>
1.422 www 1001: </div>
1002: <div class="LC_edit_problem_header_row1">'.
1003: &Apache::lonxml::renderingoptions().'
1.406 albertel 1004: </div>
1005: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1006: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 1007: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
1008: '.&mt('Reset Submissions').'</button>
1.406 albertel 1009: </div>
1.453 bisitz 1010: <hr />
1.406 albertel 1011: <div class="LC_edit_problem_header_randomize_row">
1012: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1013: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1014: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1015: $rndseed.'"
1016: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1017:
1018: if (!$Apache::lonhomework::parsing_a_task) {
1019: my $numtoanalyze=$env{'form.numtoanalyze'};
1020: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1021: $result .= '<span class="LC_nobreak">'.
1022: &mt('[_1] for [_2] versions.',
1.416 raeburn 1023: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1024: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1025: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1026: $numtoanalyze.'" size="5" />').
1027: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1028: '</span>';
1029:
1.313 albertel 1030: }
1.406 albertel 1031:
1032: $result.='
1033: </div>
1.453 bisitz 1034: <hr />
1.447 bisitz 1035: <div>';
1.416 raeburn 1036: $result.='<input type="hidden" name="problemmode" value="view" />';
1037: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1038: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1039: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1040: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1041: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1042: my $uri = $env{'request.uri'};
1.543 damieng 1043: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1044: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1045: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1046: }
1.408 albertel 1047: $result.='
1048: </div>
1.453 bisitz 1049: <hr />
1.409 albertel 1050: '.&Apache::lonxml::message_location().'
1.406 albertel 1051: </div>';
1.159 albertel 1052: return $result;
1.48 albertel 1053: }
1054:
1.65 albertel 1055: sub initialize_storage {
1.357 albertel 1056: my ($given_symb) = @_;
1.353 albertel 1057: undef(%Apache::lonhomework::results);
1058: undef(%Apache::lonhomework::history);
1.357 albertel 1059: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1060: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1061:
1062: # anonymous users (CODEd exams) have no data
1063: if ($name eq 'anonymous'
1064: && !defined($domain)) {
1065: return;
1066: }
1067:
1.333 albertel 1068: if ($env{'request.state'} eq 'construct'
1069: || $symb eq ''
1070: || $Apache::lonhomework::type eq 'practice') {
1071:
1072: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1073: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1074: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1075: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1076: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1077: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1078: &Apache::lonxml::debug("Attempt reset");
1079: }
1.159 albertel 1080: %Apache::lonhomework::history=
1.333 albertel 1081: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1082: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1083: &Apache::lonxml::debug("Return message of $temp");
1084: } else {
1085: %Apache::lonhomework::history=
1086: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1087: }
1.353 albertel 1088:
1.159 albertel 1089: #ignore error conditions
1.526 raeburn 1090: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1091: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1092: }
1093:
1.435 jms 1094: =pod
1095:
1096: =item finalize_storage()
1097:
1.524 raeburn 1098: Stores away the result hash to a student's environment;
1.523 raeburn 1099: checks form.grade_ for specific values, otherwise stores
1100: to the running user's environment.
1.524 raeburn 1101:
1102: &check_correctness_changes() is called in two circumstances
1103: in which the results hash is to be stored permanently, for
1104: grading triggered by a student's submission, where feedback on
1105: correctness is to be provided to the student.
1106:
1107: 1. Immediately prior to storing the results hash
1108:
1109: To handle the case where a student's submission (and award) were
1110: stored after history was retrieved in &initialize_storage(), e.g.,
1111: if a student submitted answers in quick succession (e.g., from
1112: multiple tabs). &Apache::inputtags::hidealldata() is called for
1113: any parts with out-of-order storage (i.e., correct then incorrect,
1114: where awarded >= 1 when correct).
1115:
1116: 2. Immediately after storing the results hash
1117:
1118: To handle the case where lond on the student's homeserver returns
1119: delay:N -- where N is the number of transactions between the last
1120: retrieved in &initialize_storage() and the last stored immediately
1121: before permanent storage of the current transaction via
1122: lond::store_handler(). &Apache::grades::makehidden() is called
1123: for any parts with out-of-order storage (i.e., correct then incorrect,
1124: where awarded >= 1 when correct).
1125:
1126: Will call &store_aggregates() to increment totals for attempts,
1127: students, and corrects, if running user has student role.
1128:
1.435 jms 1129: =cut
1130:
1131:
1.65 albertel 1132: sub finalize_storage {
1.357 albertel 1133: my ($given_symb) = @_;
1.159 albertel 1134: my $result;
1.289 albertel 1135: if (%Apache::lonhomework::results) {
1.323 albertel 1136: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1137: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1138: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1139: &Apache::lonnet::whichuser($given_symb);
1.562 raeburn 1140: my ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref,$total,$possible,$dopassback);
1.333 albertel 1141: if ($env{'request.state'} eq 'construct'
1142: || $symb eq ''
1143: || $Apache::lonhomework::type eq 'practice') {
1144: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1145: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1146: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1147: $namespace,'',$domain,$name);
1.159 albertel 1148: &Apache::lonxml::debug('Construct Store return message:'.$result);
1149: } else {
1.560 raeburn 1150: my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.524 raeburn 1151: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1152: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1153: (!defined($env{'form.grade_courseid'}))) {
1.560 raeburn 1154: if ($env{'request.lti.login'}) {
1155: my ($map)=&Apache::lonnet::decode_symb($symb);
1156: $map = &Apache::lonnet::clutter($map);
1157: ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref) =
1158: &needs_lti_passback($courseid,$symb,$map);
1159: }
1.524 raeburn 1160: if ($Apache::lonhomework::history{'version'}) {
1161: $laststore = $Apache::lonhomework::history{'version'}.'='.
1162: $Apache::lonhomework::history{'timestamp'};
1163: } else {
1164: $laststore = '0=0';
1165: }
1.560 raeburn 1166: %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.524 raeburn 1167: if ($record{'version'}) {
1168: my ($newversion,$oldversion,$oldtimestamp);
1169: if ($Apache::lonhomework::history{'version'}) {
1170: $oldversion = $Apache::lonhomework::history{'version'};
1171: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1172: } else {
1173: $oldversion = 0;
1174: $oldtimestamp = 0;
1175: }
1176: if ($record{'version'} > $oldversion) {
1177: if ($record{'timestamp'} >= $oldtimestamp) {
1178: $laststore = $record{'version'}.'='.$record{'timestamp'};
1179: $newversion = $record{'version'} + 1;
1180: $checkedparts = 1;
1181: foreach my $key (keys(%Apache::lonhomework::results)) {
1182: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1183: my $part = $1;
1184: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1185: push(@parts,$part);
1186: }
1187: }
1188: }
1189: if (@parts) {
1190: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1191: \%record,\@parts,$newversion,
1192: $oldversion);
1193: if (@parts_to_hide) {
1194: foreach my $part (@parts_to_hide) {
1195: $postcorrect{$part} = 1;
1196: &Apache::inputtags::hidealldata($part);
1197: }
1198: }
1199: }
1200: }
1201: }
1202: }
1203: }
1.159 albertel 1204: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1205: $symb,$courseid,$domain,$name,$laststore);
1206: if ($result =~ /^delay\:(\d+)$/) {
1207: my $numtrans = $1;
1208: my ($oldversion) = split(/=/,$laststore);
1209: if ($numtrans) {
1210: my $newversion = $oldversion + 1 + $numtrans;
1211: my @possparts;
1212: if ($checkedparts) {
1213: foreach my $part (@parts) {
1214: unless ($postcorrect{$part}) {
1215: push(@possparts,$part);
1216: }
1217: }
1218: } else {
1219: foreach my $key (keys(%Apache::lonhomework::results)) {
1220: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1221: my $part = $1;
1222: unless ($postcorrect{$part}) {
1223: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1224: push(@possparts,$part);
1225: }
1226: }
1227: }
1228: }
1229: }
1230: if (@possparts) {
1231: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1232: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1233: \%newrecord,\@possparts,$newversion,
1234: $oldversion);
1235: if (@parts_to_hide) {
1236: my $partslist = join(',',@parts_to_hide);
1237: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1238: }
1239: }
1240: }
1241: }
1.562 raeburn 1242: if ($passback) {
1243: foreach my $key (keys(%Apache::lonhomework::results)) {
1244: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1245: my $part = $1;
1246: if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1247: ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1248: ($Apache::lonhomework::results{"resource.$part.tries"})) {
1249: $dopassback = 1;
1250: last;
1251: }
1252: }
1253: }
1254: }
1255: if (($dopassback) && ($ltiscope eq 'resource') && ($ltisymb eq $symb)) {
1.560 raeburn 1256: $total = 0;
1257: $possible = 0;
1258: my $navmap = Apache::lonnavmaps::navmap->new();
1259: if (ref($navmap)) {
1260: my $res = $navmap->getBySymb($symb);
1261: if (ref($res)) {
1262: my $partlist = $res->parts();
1263: if (ref($partlist) eq 'ARRAY') {
1264: foreach my $part (@{$partlist}) {
1265: unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1266: next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1267: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1268: $possible += $weight;
1269: if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1270: my $awarded = $record{"resource.$part.awarded"};
1271: if ($awarded) {
1272: $total += $weight * $awarded;
1273: }
1274: }
1275: }
1276: }
1277: }
1278: }
1279: }
1280: foreach my $key (keys(%Apache::lonhomework::results)) {
1281: if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1282: my $part = $1;
1283: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1284: $possible += $weight;
1285: my $awarded = $Apache::lonhomework::results{$key};
1286: if ($awarded) {
1287: $total += $weight * $awarded;
1288: }
1289: }
1290: }
1291: }
1.159 albertel 1292: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1293: &store_aggregates($symb,$courseid);
1.562 raeburn 1294: if ($dopassback) {
1.560 raeburn 1295: my $scoreformat = 'decimal';
1296: if (ref($ltiref) eq 'HASH') {
1297: if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1298: $scoreformat = $1;
1299: }
1300: }
1301: my $ltigrade = {
1302: 'lti' => $ltiref,
1303: 'cid' => $courseid,
1304: 'uname' => $env{'user.name'},
1305: 'udom' => $env{'user.domain'},
1306: 'pbid' => $env{'request.lti.passbackid'},
1307: 'pburl' => $env{'request.lti.passbackurl'},
1308: 'scope' => $ltiscope,
1309: 'ltimap' => $ltimap,
1310: 'ltisymb' => $ltisymb,
1311: 'format' => $scoreformat,
1312: };
1313: if ($ltiscope eq 'resource') {
1314: $ltigrade->{'total'} = $total;
1315: $ltigrade->{'possible'} = $possible;
1316: }
1317: push(@Apache::lonhomework::ltipassback,$ltigrade);
1318: }
1.159 albertel 1319: }
1.323 albertel 1320: } else {
1321: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1322: }
1.159 albertel 1323: return $result;
1.65 albertel 1324: }
1325:
1.560 raeburn 1326: sub needs_lti_passback {
1327: my ($courseid,$symb,$map) = @_;
1328: if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1329: if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1330: my ($cdom,$cnum) = ($1,$2);
1331: my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1332: if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1333: if ($lti{$env{'request.lti.login'}}{'passback'}) {
1334: my ($ltiscope,$ltiuri,$ltisymb) =
1335: &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1336: $cdom,$cnum,1);
1337: my ($passback,$ltimap);
1338: if ($ltiscope eq 'resource') {
1339: if ($ltisymb eq $symb) {
1340: $passback = 1;
1341: }
1342: } elsif ($ltiscope eq 'map') {
1343: if ($ltiuri eq $map) {
1344: $passback = 1;
1345: $ltimap = $map;
1346: }
1347: } elsif ($ltiscope eq 'course') {
1348: if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1349: $passback = 1;
1350: }
1351: }
1352: return ($passback,$ltiscope,$ltimap,$ltisymb,$lti{$env{'request.lti.login'}});
1353: }
1354: }
1355: }
1356: }
1357: return;
1358: }
1359:
1.435 jms 1360: =pod
1361:
1.524 raeburn 1362: =item check_correctness_changes()
1363:
1364: For all parts for which current results contain a solved status
1365: of "incorrect_attempted", check if there was a transaction in which
1366: solved was set to "correct_by_student" in the time since the last
1367: transaction (retrieved when &initialize_storage() was called i.e.,
1368: when &start_problem() was called), unless:
1369: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1370: (b) problemstatus is set to no or no_feedback_ever
1371: If such a transaction exists, and did not occur after "reset status"
1372: by a user with grading privileges, then the current transaction is an
1373: example of an out-of-order transaction (i.e., incorrect occurring after
1374: correct). Accordingly, the current transaction should be hidden.
1375:
1376: =cut
1377:
1378:
1379: sub check_correctness_changes {
1380: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1381: my @parts_to_hide;
1382: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1383: return @parts_to_hide;
1384: }
1385: if (@{$parts}) {
1386: my $usec;
1387: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1388: ($env{'request.course.id'} eq $courseid)) {
1389: $usec = $env{'request.course.sec'};
1390: } else {
1391: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1392: }
1393: foreach my $id (@{$parts}) {
1394: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1395: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1396: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1397: my $reset;
1398: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1399: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1400: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1401: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1402: $reset = 1;
1403: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1404: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1405: unless ($reset) {
1406: push(@parts_to_hide,$id);
1407: last;
1408: }
1409: }
1410: }
1411: }
1412: }
1413: return @parts_to_hide;
1414: }
1415:
1416: =pod
1417:
1.435 jms 1418: item store_aggregates()
1419:
1420: Sends hash of values to be incremented in nohist_resourcetracker.db
1421: for the course. Increments total number of attempts, unique students
1422: and corrects for each part for an instance of a problem, as appropriate.
1423:
1424: =cut
1425:
1.285 raeburn 1426: sub store_aggregates {
1427: my ($symb,$courseid) = @_;
1.479 raeburn 1428: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1429: my @parts;
1.288 albertel 1430: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1431: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1432: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1433: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1434: push(@parts, $1);
1.285 raeburn 1435: }
1436: }
1.286 albertel 1437: foreach my $part (@parts) {
1.470 raeburn 1438: if ($env{'request.role'} =~/^st/) {
1439: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1440: eq 'APPROX_ANS' ||
1441: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1442: eq 'EXACT_ANS') {
1443: $aggregate{$symb."\0".$part."\0correct"} = 1;
1444: }
1445: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1446: $aggregate{$symb."\0".$part."\0users"} = 1;
1447: } else {
1448: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1449: if ($last_reset) {
1450: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1451: $aggregate{$symb."\0".$part."\0users"} = 1;
1452: }
1453: }
1454: }
1455: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1456: }
1.470 raeburn 1457: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1458: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1459: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1460: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1461: $randtrycounter{$symb."\0".$part} = 1;
1462: } else {
1463: $anoncounter{$symb."\0".$part} = 1;
1464: }
1.545 raeburn 1465: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1466: if ($needsrelease) {
1.470 raeburn 1467: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1468: if ($curr_required eq '') {
1.471 raeburn 1469: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1470: } else {
1471: my ($currmajor,$currminor) = split(/\./,$curr_required);
1472: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1473: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1474: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1475: }
1.292 raeburn 1476: }
1477: }
1.285 raeburn 1478: }
1479: }
1.526 raeburn 1480: if (keys(%aggregate) > 0) {
1.289 albertel 1481: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1482: $cdomain,$cname);
1483: }
1.472 raeburn 1484: if (keys(%anoncounter) > 0) {
1.481 raeburn 1485: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1486: $cdomain,$cname);
1.472 raeburn 1487: }
1.479 raeburn 1488: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1489: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1490: $cdomain,$cname);
1.479 raeburn 1491: }
1.292 raeburn 1492: }
1.289 albertel 1493:
1.557 raeburn 1494: sub access_status_msg {
1495: my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1496: my $msg;
1497: if ($target eq 'web') {
1498: if ($status eq 'UNAVAILABLE') {
1499: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1500: } elsif ($status eq 'NOT_IN_A_SLOT') {
1501: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1502: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1503: ($status eq 'NOTRESERVABLE')) {
1504: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1505: } elsif ($status ne 'NOT_YET_VIEWED') {
1506: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1507: }
1508: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1509: $msg.=&mt('The problem ').$accessmsg;
1510: } elsif ($status eq 'UNCHECKEDOUT') {
1511: $msg.=&checkout_msg();
1512: } elsif ($status eq 'NOT_YET_VIEWED') {
1513: $msg.=&firstaccess_msg($accessmsg,$symb);
1514: } elsif ($status eq 'NOT_IN_A_SLOT') {
1515: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1516: } elsif ($status eq 'RESERVABLE') {
1517: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1518: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1519: '<br />'.
1520: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1521: } elsif ($status eq 'RESERVABLE_LATER') {
1522: $msg.=&mt('Window to make a reservation will open [_1].',
1523: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1524: } elsif ($status eq 'NOTRESERVABLE') {
1525: $msg.=&mt('Not available to make a reservation.');
1526: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1527: if ($ipused) {
1528: $msg.=&mt('You must use the same computer ([_1]) you used when you first accessed this resource using your time/place-based reservation.',"IP: $ipused");
1529: } else {
1530: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1531: &mt('Somebody else has already used this particular computer for that purpose.');
1532: }
1533: }
1534: $msg.='<br />';
1535: } elsif ($target eq 'tex') {
1536: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1537: : '\begin{minipage}{\textwidth}';
1538:
1539: $msg ='\noindent \vskip 1 mm '.
1540: $startminipage.'\vskip 0 mm';
1541: if ($status eq 'UNAVAILABLE') {
1542: $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1543: } else {
1544: $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1545: }
1546: }
1547: return $msg;
1548: }
1549:
1550: sub checkin_prompt {
1551: my ($target,$slot_name,$slot,$type) = @_;
1552: my $result;
1553: if ($target eq 'web') {
1554: $result = &Apache::bridgetask::proctor_validation_screen($slot);
1555: } elsif ($target eq 'grade') {
1556: if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1557: $result = &mt('An error occurred during check-in');
1558: }
1559: }
1560: return $result;
1561: }
1562:
1563: sub selfcheckin_resource {
1564: my ($resource_due,$slot_name,$slot,$symb) = @_;
1565: if ($slot_name ne '') {
1566: my $checked_in =
1567: $Apache::lonhomework::history{'resource.0.checkedin'};
1568: if ($checked_in eq '') {
1569: # unproctored slot access, self checkin
1570: my $needsiptied;
1571: if (ref($slot)) {
1572: $needsiptied = $slot->{'iptied'};
1573: }
1574: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1575: $slot_name,$needsiptied);
1576: if ($check =~ /^error: /) {
1577: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1578: } else {
1579: $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1580: }
1581: }
1582: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1583: if ($slot->{'starttime'} < time()) {
1584: if (!$resource_due) {
1585: $resource_due = $slot->{'endtime'};
1586: } elsif ($slot->{'endtime'} < $resource_due) {
1587: $resource_due = $slot->{'endtime'};
1588: }
1589: }
1590: }
1591: }
1592: return $resource_due;
1593: }
1594:
1.65 albertel 1595: sub checkout_msg {
1.211 albertel 1596: my %lt=&Apache::lonlocal::texthash(
1597: 'resource'=>'The resource needs to be checked out',
1598: '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.',
1599: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1600: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1601: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1602: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1603: return (<<ENDCHECKOUT);
1.211 albertel 1604: <h2>$lt{'resource'}</h2>
1605: <p>$lt{'id_expln'}</p>
1.449 bisitz 1606: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1607: <form name="checkout" method="post" action="$uri">
1.91 albertel 1608: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1609: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1610: </form>
1611: ENDCHECKOUT
1612: }
1613:
1.252 albertel 1614: sub firstaccess_msg {
1.253 albertel 1615: my ($time,$symb)=@_;
1.414 albertel 1616: my $result;
1617: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1618: if ($interval[1] eq 'map') {
1619: my ($map)=&Apache::lonnet::decode_symb($symb);
1620: my $foldertitle=&Apache::lonnet::gettitle($map);
1621:
1622: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1623: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1624: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1625: ,$foldertitle,$time)."</p>";
1.414 albertel 1626: } elsif ($interval[1] eq 'course') {
1627: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1628: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1629: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1630: ,$course,$time)."</p>";
1.414 albertel 1631: } else {
1632: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1633: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1634: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1635: ,$title,$time)."</p>";
1.414 albertel 1636: }
1.352 albertel 1637: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1638: my $buttontext = &mt('Show Resource');
1639: my $timertext = &mt('Start Timer?');
1.414 albertel 1640: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1641: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1642: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1643: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1644: </form>
1645: ENDCHECKOUT
1.414 albertel 1646: return $result;
1.252 albertel 1647: }
1648:
1.204 albertel 1649: sub init_problem_globals {
1650: my ($type)=@_;
1651: #initialize globals
1.308 foxr 1652: # For problems, we start out in part 0 (outside a <part> tag).
1653: # and part 0 is used to describe the main body of the <problem>
1654: #
1.204 albertel 1655: if ($type eq 'problem') {
1656: $Apache::inputtags::part='0';
1657: @Apache::inputtags::partlist=('0');
1.405 albertel 1658: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1659: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1660:
1.266 albertel 1661: } elsif ($type eq 'library') {
1.204 albertel 1662: $Apache::inputtags::part='';
1663: @Apache::inputtags::partlist=();
1.405 albertel 1664: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1665: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1666:
1.304 albertel 1667: } elsif ($type eq 'Task') {
1668: $Apache::inputtags::part='0';
1669: @Apache::inputtags::partlist=('0');
1.405 albertel 1670: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1671: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1672: }
1.477 www 1673: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1674: @Apache::inputtags::responselist = ();
1675: @Apache::inputtags::importlist = ();
1676: @Apache::inputtags::previous=();
1677: @Apache::inputtags::previous_version=();
1.536 raeburn 1678: $Apache::inputtags::leniency='';
1.204 albertel 1679: $Apache::structuretags::printanswer='No';
1680: @Apache::structuretags::whileconds=();
1681: @Apache::structuretags::whilebody=();
1682: @Apache::structuretags::whileline=();
1683: $Apache::lonhomework::scantronmode=0;
1.566 raeburn 1684: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1685: undef($Apache::lonhomework::name);
1.358 albertel 1686: undef($Apache::lonhomework::default_type);
1687: undef($Apache::lonhomework::type);
1.204 albertel 1688: }
1689:
1690: sub reset_problem_globals {
1691: my ($type)=@_;
1692: undef(%Apache::lonhomework::history);
1693: undef(%Apache::lonhomework::results);
1694: undef($Apache::inputtags::part);
1.536 raeburn 1695: undef($Apache::inputtags::leniency);
1.498 raeburn 1696: if ($type eq 'Task') {
1697: undef($Apache::inputtags::slot_name);
1.528 raeburn 1698: } elsif ($type eq 'problem') {
1699: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1700: }
1.208 albertel 1701: #don't undef this, lonhomework.pm takes care of this, we use this to
1702: #detect if we try to do 2 problems in one file
1703: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1704: undef($Apache::lonhomework::name);
1.358 albertel 1705: undef($Apache::lonhomework::default_type);
1706: undef($Apache::lonhomework::type);
1707: undef($Apache::lonhomework::scantronmode);
1.566 raeburn 1708: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1709: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1710: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1711: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1712: }
1713:
1.241 albertel 1714: sub set_problem_state {
1.240 albertel 1715: my ($part)=@_;
1.284 albertel 1716: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1717: $Apache::lonhomework::history{"resource.$part.solved"}=
1718: 'correct_by_student';
1719: }
1720: }
1721:
1.241 albertel 1722: sub get_problem_status {
1723: my ($part)=@_;
1.267 albertel 1724: my $problem_status;
1.284 albertel 1725: if ($env{'request.state'} eq 'construct' &&
1726: defined($env{'form.problemstatus'})) {
1727: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1728: } else {
1729: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1730: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1731: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1732: }
1733: return $problem_status;
1734: }
1735:
1.9 albertel 1736: sub start_problem {
1.326 albertel 1737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1738:
1.311 foxr 1739: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1740: if (!$Apache::lonxml::metamode) {
1741: &Apache::lonxml::startredirection();
1742: }
1.311 foxr 1743:
1.308 foxr 1744: # Problems don't nest and we don't allow more than one <problem> in
1745: # a .problem file.
1746: #
1.184 albertel 1747: if ( $Apache::inputtags::part ne '' ||
1748: $Apache::lonhomework::parsing_a_problem) {
1749: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1750: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1751: return '';
1752: }
1.184 albertel 1753:
1754: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1755: &init_problem_globals('problem');
1.166 albertel 1756:
1.284 albertel 1757: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1758: $Apache::lonhomework::scantronmode=1;
1759: }
1.161 albertel 1760:
1.159 albertel 1761: if ($target ne 'analyze') {
1.415 raeburn 1762: my $type = &Apache::lonnet::EXT('resource.0.type');
1763: $Apache::lonhomework::type=$type;
1.284 albertel 1764: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1765: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1766: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1767: }
1.332 albertel 1768: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1769: }
1.164 albertel 1770: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1771: my $uri=$env{'request.uri'};
1.159 albertel 1772: if ($uri=~/\.(\w+)$/) {
1773: $Apache::lonhomework::type=$1;
1774: &Apache::lonxml::debug("Using type of $1");
1775: } else {
1776: $Apache::lonhomework::type='problem';
1777: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1778: }
1.87 albertel 1779: }
1.301 albertel 1780: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1781:
1.363 albertel 1782: &initialize_storage();
1.389 albertel 1783: if ($target ne 'analyze'
1784: && $env{'request.state'} eq 'construct') {
1785: &set_problem_state('0');
1786: }
1787:
1.366 albertel 1788: if ($target eq 'web') {
1789: &Apache::lonxml::debug(" grading history ");
1790: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1791: }
1.363 albertel 1792:
1.159 albertel 1793: #added vars to the scripting enviroment
1.213 albertel 1794: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1795: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1796: &Apache::run::run($expression,$safeeval);
1.159 albertel 1797: my $status;
1798: my $accessmsg;
1.508 raeburn 1799: my $resource_due;
1.540 raeburn 1800: my $ipused;
1.159 albertel 1801:
1.343 albertel 1802: my $name= &get_resource_name($parstack,$safeeval);
1.561 raeburn 1803: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1804:
1805: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1806: $target eq 'tex') {
1807: if ($env{'form.markaccess'}) {
1808: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1809: my ($timelimit) = split(/_/,$interval[0]);
1.561 raeburn 1810: my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1811: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1812: $firstaccres = $is_set;
1813: }
1.506 raeburn 1814: }
1815: }
1816:
1.354 albertel 1817: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1818: || $target eq 'edit') {
1.528 raeburn 1819: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1820: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1821: $name);
1.552 raeburn 1822: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1823: ($target eq 'answer')) {
1.528 raeburn 1824: my ($symb)= &Apache::lonnet::whichuser();
1.568 ! raeburn 1825: if ($symb ne '') {
! 1826: my $navmap = Apache::lonnavmaps::navmap->new();
! 1827: if (ref($navmap)) {
! 1828: my $res = $navmap->getBySymb($symb);
! 1829: if (ref($res)) {
! 1830: $probpartlist = $res->parts();
! 1831: }
1.528 raeburn 1832: }
1833: }
1.350 albertel 1834: }
1835:
1.552 raeburn 1836: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1837: $target eq 'tex') {
1838:
1839: my ($symb)= &Apache::lonnet::whichuser();
1840: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1841: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1842: push (@Apache::inputtags::status,$status);
1843: }
1844:
1.284 albertel 1845: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1846:
1.479 raeburn 1847: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1848: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1849: $target eq 'tex') {
1.479 raeburn 1850:
1.568 ! raeburn 1851: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1852: #handle rand seed in construction space
1.568 ! raeburn 1853: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
! 1854: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
! 1855: if ($partorder ne '') {
! 1856: @{$probpartlist} = split(/,/,$partorder);
! 1857: }
! 1858: }
1.528 raeburn 1859: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1860: if (($target eq 'grade') && &Apache::response::submitted()) {
1861: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1862: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1863: } else {
1864: my @parts;
1865: if (ref($probpartlist) eq 'ARRAY') {
1866: @parts = @{$probpartlist};
1867: }
1868: unless (@parts) {
1.529 raeburn 1869: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1870: }
1871: }
1872: }
1.479 raeburn 1873:
1.333 albertel 1874: if ($env{'request.state'} ne "construct" &&
1875: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.565 raeburn 1876: my $rndseedval = $rndseed;
1877: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1878: $rndseedval = $env{'form.rndseed'};
1879: }
1.162 albertel 1880: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.565 raeburn 1881: $rndseedval.'" />'.
1.551 damieng 1882: '<button type="submit" name="resetdata"
1883: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1884: if (exists($env{'form.username'})) {
1885: $form_tag_start.=
1.164 albertel 1886: '<input type="hidden" name="username"
1.284 albertel 1887: value="'.$env{'form.username'}.'" />';
1.334 albertel 1888: }
1.462 raeburn 1889: if ($env{'request.role.adv'}) {
1890: $form_tag_start.= ' <label class="LC_nobreak">'
1891: .'<input type="checkbox" name="showallfoils"';
1892: if (defined($env{'form.showallfoils'})) {
1893: $form_tag_start.=' checked="checked"';
1894: }
1895: $form_tag_start.= ' /> '
1896: .&mt('Show All Foils')
1897: .'</label>';
1898: }
1.417 www 1899: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1900: $form_tag_start.=&practice_problem_header();
1.417 www 1901: }
1.462 raeburn 1902: $form_tag_start.='<hr />';
1.565 raeburn 1903: }
1904: if (($env{'request.state'} ne "construct") &&
1905: ($Apache::lonhomework::type eq 'randomizetry') &&
1906: ($status eq 'CAN_ANSWER') &&
1907: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1908: (!$env{'request.role.adv'})) {
1.549 raeburn 1909: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.566 raeburn 1910: my @parts;
1911: if (ref($probpartlist) eq 'ARRAY') {
1912: @parts = @{$probpartlist};
1913: }
1914: unless (@parts) {
1915: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1916: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1917: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1918: }
1.479 raeburn 1919: }
1.324 albertel 1920:
1.159 albertel 1921: my $expression='$external::datestatus="'.$status.'";';
1922: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1923: &Apache::run::run($expression,$safeeval);
1924: &Apache::lonxml::debug("Got $status");
1.324 albertel 1925:
1.159 albertel 1926: if (( $status eq 'CLOSED' ) ||
1927: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1928: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1929: ( $status eq 'BANNED') ||
1.216 albertel 1930: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1931: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1932: ( $status eq 'NOTRESERVABLE') ||
1933: ( $status eq 'RESERVABLE') ||
1934: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1935: ( $status eq 'INVALID_ACCESS') ||
1936: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1937: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1938: $style);
1.561 raeburn 1939: if (($status eq 'NOT_YET_VIEWED') && ($firstaccres)) {
1940: $result .= '<p class="LC_error">'.
1941: &mt('A problem occurred when trying to start the timer.').'</p>';
1942: }
1.557 raeburn 1943: $result .= &access_status_msg('problem',$status,$symb,$target,$ipused,$accessmsg);
1.324 albertel 1944: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1945: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1946: $style);
1.557 raeburn 1947: $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 1948: } elsif ($target eq 'web') {
1.508 raeburn 1949: if ($status eq 'CAN_ANSWER') {
1950: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1951: if ($slot_name ne '') {
1.557 raeburn 1952: $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
1953: $env{'request.symb'});
1.508 raeburn 1954: }
1955: if ($resource_due) {
1956: my $time_left = $resource_due - time();
1957: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1958: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1959: }
1960: }
1961: }
1.368 albertel 1962: $result.="\n $form_tag_start \t".
1.227 albertel 1963: '<input type="hidden" name="submitted" value="yes" />';
1964: # create a page header and exit
1.284 albertel 1965: if ($env{'request.state'} eq "construct") {
1.544 damieng 1966: if ($env{'form.inhibitmenu'} eq 'yes') {
1967: # error messages can be useful in any case
1968: $result.= &Apache::lonxml::message_location();
1969: } else {
1.542 raeburn 1970: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1971: }
1.428 raeburn 1972: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1973: $result.= '<button type="submit" name="resetdata" '.
1974: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1975: &practice_problem_header().'<hr />';
1.564 raeburn 1976: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1977: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1978: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1979: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1980: }
1.227 albertel 1981: }
1982: # if we are viewing someone else preserve that info
1.284 albertel 1983: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1984: foreach my $field ('symb','courseid','domain','username') {
1985: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1986: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1987: }
1.479 raeburn 1988: foreach my $field ('trial','questiontype') {
1989: if ($env{"form.grade_$field"} ne '') {
1990: $result .= '<input type="hidden" name="grade_'.$field.
1991: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1992: }
1993: }
1.159 albertel 1994: }
1.490 raeburn 1995: if ($env{'form.grade_imsexport'}) {
1996: $result = '';
1997: }
1.159 albertel 1998: } elsif ($target eq 'tex') {
1.319 foxr 1999: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2000: $result .= &select_metadata_hyphenation();
1.99 sakharuk 2001: }
1.159 albertel 2002: } elsif ($target eq 'edit') {
1.343 albertel 2003: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2004: $Apache::lonxml::warnings_error_header=
2005: &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 2006: my $temp=&Apache::edit::insertlist($target,$token);
2007: $result.=$temp;
2008: } elsif ($target eq 'modified') {
2009: $result=$token->[4];
2010: } else {
2011: # page_start returned a starting result, delete it if we don't need it
2012: $result = '';
1.99 sakharuk 2013: }
1.159 albertel 2014: return $result;
1.9 albertel 2015: }
2016:
2017: sub end_problem {
1.159 albertel 2018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2019: my $result;
1.310 foxr 2020:
1.321 albertel 2021: if (!$Apache::lonxml::metamode) {
2022: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2023: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2024: }
1.319 foxr 2025:
2026: if ($target eq 'tex') {
1.321 albertel 2027: # Figure out the front matter and replace the
2028: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2029: # this in end_problem because whether or not we display due
2030: # dates depends on whether due dates have already been
2031: # displayed in the problem parts.
2032:
1.319 foxr 2033: my $frontmatter = '';
2034: my $startminipage = '';
2035: if (not $env{'form.problem_split'}=~/yes/) {
2036: $startminipage = '\begin{minipage}{\textwidth}';
2037: }
2038: my $id = $Apache::inputtags::part;
2039: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2040: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2041: my @packages = split(/,/,$packages);
1.319 foxr 2042: my $allow_print_points = 0;
2043: foreach my $partial_key (@packages) {
2044: if ($partial_key=~m/^part_0$/) {
2045: $allow_print_points=1;
2046: }
2047: }
2048: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2049: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2050: if (lc($env{'course.'.$env{'request.course.id'}.
2051: '.disableexampointprint'}) eq 'yes') {
2052: $allow_print_points=0;
2053: }
2054: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2055: 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 2056: &clear_required_languages();
1.319 foxr 2057: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2058: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2059:
2060: # Figure out what the due date is and if we need to print
2061: # it in the problem header. We have been logging the
2062: # last due date written to file.
2063:
2064: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2065: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2066: my $duedate_text = &mt('Due date: [_1]'
2067: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2068: my $temp_file;
2069: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2070:
2071: # Figure out what the last printed due date is or set it
2072: # to the epoch if no duedates have been printed.
2073:
2074: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2075: if (-e $filename) {
2076: $temp_file = Apache::File->new($filename);
2077: my @due_file = <$temp_file>;
2078: $due_file_content = $due_file[$#due_file];
2079: chomp $due_file_content;
2080: }
2081:
2082: # We display the due date iff it is not the same as the last
2083: # duedate in problem header ($due_file_content), and
2084: # none of our parts displayed a duedate.
2085: #
2086: my $parts_with_displayduedate;
2087: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2088: $parts_with_displayduedate =
2089: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2090: } else {
2091: $parts_with_displayduedate = 0;
2092: }
2093: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2094: $temp_file = Apache::File->new('>'.$filename);
2095: print $temp_file "$duetime\n";
2096: if (not $env{'request.symb'} =~ m/\.page_/) {
2097: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2098: $frontmatter .= $begin_doc.
1.448 bisitz 2099: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2100: } else {
2101: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2102: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2103: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2104: }
1.319 foxr 2105: }
2106: } else {
1.448 bisitz 2107: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2108: }
2109: } else {
2110: if (not $env{'request.symb'} =~ m/\.page_/) {
2111: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2112: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2113: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2114: }
1.319 foxr 2115: } else {
1.381 albertel 2116: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2117: }
2118: }
2119: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
2120: }
2121:
1.159 albertel 2122: my $status=$Apache::inputtags::status['-1'];
2123: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2124: $target eq 'tex') {
1.249 albertel 2125: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2126: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2127: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2128: &Apache::inputtags::grade;
1.324 albertel 2129: } elsif ($status eq 'NEEDS_CHECKIN') {
2130: # no need to grade, and don't want to hide data
1.249 albertel 2131: } else {
2132: # move any submission data to .hidden
2133: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2134: }
1.159 albertel 2135: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2136: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2137: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2138: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2139: # if part is zero, no <part>s existed, so we need show the current
2140: # grading status
2141: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2142: $result.= $gradestatus;
2143: }
2144: if (
1.284 albertel 2145: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2146: ($target eq 'answer') || ($target eq 'tex')
2147: ) {
1.490 raeburn 2148: if (($target ne 'tex') &&
2149: ($env{'form.answer_output_mode'} ne 'tex') &&
2150: (!$env{'form.grade_imsexport'})) {
1.254 www 2151: $result.="</form>";
1.159 albertel 2152: }
2153: if ($target eq 'web') {
1.507 raeburn 2154: #
2155: # Closing </body></html> not added by end_page().
2156: # Added separately at end of this routine, after added
2157: # <script></script> so document will be valid xhtml.
2158: #
1.546 raeburn 2159: my $showdisc = 1;
1.547 raeburn 2160: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
2161: (!$env{'request.role.adv'})) {
2162: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 2163: $showdisc = 0;
1.547 raeburn 2164: my ($symb)= &Apache::lonnet::whichuser();
2165: if ($symb) {
2166: my $navmap = Apache::lonnavmaps::navmap->new();
2167: if (ref($navmap)) {
2168: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
2169: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 2170: # and there are no tries left
1.547 raeburn 2171: unless ($hastries) {
2172: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
2173: my ($score,$incomplete) =
2174: &Apache::lonplacementtest::check_completion(undef,undef,1);
2175: if (!$incomplete) {
2176: $result .= &Apache::lonplacementtest::showresult(1,1);
2177: } elsif ($incomplete < 100) {
2178: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
2179: }
2180: } else {
2181: # For Placement Tests score is displayed if test has just been completed
2182: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
2183: if (!$incomplete) {
2184: $result.= &Apache::lonplacementtest::showresult(1,1);
2185: }
2186: }
2187: }
2188: }
2189: }
1.546 raeburn 2190: }
2191: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2192: 'notbody' => 1});
1.159 albertel 2193: } elsif ($target eq 'tex') {
1.178 sakharuk 2194: my $endminipage = '';
1.284 albertel 2195: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2196: $endminipage = '\end{minipage}';
2197: }
1.284 albertel 2198: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2199: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2200: } else {
1.262 sakharuk 2201: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2202: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2203: $result .= $endminipage.'\end{document} ';
2204: } else {
1.382 albertel 2205: $result .= $endminipage;
1.262 sakharuk 2206: }
1.159 albertel 2207: }
2208: }
2209: }
1.476 www 2210: if ($target eq 'web') {
1.566 raeburn 2211: $result.=&Apache::functionplotresponse::init_script();
2212: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2213: my ($symb) = &Apache::lonnet::whichuser();
2214: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2215: ($status eq 'CAN_ANSWER')) {
2216: unless (@Apache::inputtags::partlist > 1) {
2217: $result.= <<"ENDJS";
2218: <script type="text/javascript">
2219: // <![CDATA[
2220: \$(document).ready(function() {
2221: \$('#LC_randomizetry_header').css('display','block');
2222: });
2223: // ]]>
2224: </script>
2225: ENDJS
2226: }
2227: }
2228: }
1.476 www 2229: }
1.159 albertel 2230: if ($target eq 'grade') {
2231: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2232: &finalize_storage();
2233: }
1.284 albertel 2234: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2235: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2236: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2237: # normally we get it from above, but in CSTR
1.172 albertel 2238: # we always show answer mode too.
1.159 albertel 2239: }
2240: } elsif ($target eq 'meta') {
2241: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2242: @Apache::inputtags::response=();
1.159 albertel 2243: $result=&Apache::response::mandatory_part_meta;
2244: }
1.559 raeburn 2245: $result.=&Apache::response::meta_part_order('problem');
1.258 albertel 2246: $result.=&Apache::response::meta_response_order();
1.159 albertel 2247: } elsif ($target eq 'edit') {
2248: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2249: $result .= &problem_edit_footer();
1.320 albertel 2250: } elsif ($target eq 'modified') {
2251: $result .= $token->[2];
1.159 albertel 2252: }
1.155 albertel 2253:
1.284 albertel 2254: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2255: &Apache::inputtags::check_for_duplicate_ids();
2256: }
1.204 albertel 2257:
2258: &reset_problem_globals('problem');
1.159 albertel 2259:
1.502 foxr 2260: #
2261: # This shouild be just above the return so that the
2262: # time put in the javascript is as late as possible in the
2263: # computation:
2264: #
2265: if ($target eq 'web') {
2266: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2267: #
2268: # Closing tags delayed so any <script></script> tags
2269: # not in head can appear inside body, for valid xhtml.
2270: #
2271: $result .= "</body>\n</html>";
1.502 foxr 2272: }
1.159 albertel 2273: return $result;
1.48 albertel 2274: }
2275:
1.108 albertel 2276:
1.48 albertel 2277: sub start_library {
1.159 albertel 2278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2279: my ($result,$form_tag_start);
1.371 albertel 2280: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2281: &init_problem_globals('library');
2282: $Apache::lonhomework::type='problem';
2283: }
1.159 albertel 2284: if ($target eq 'edit') {
1.343 albertel 2285: ($result,$form_tag_start)=
2286: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2287: 'Edit');
2288: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2289: my $temp=&Apache::edit::insertlist($target,$token);
2290: $result.=$temp;
2291: } elsif ($target eq 'modified') {
2292: $result=$token->[4];
1.340 albertel 2293: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2294: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2295: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2296: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2297: ($result,$form_tag_start)=
2298: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2299: $name);
1.479 raeburn 2300: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2301: $result.=" \n $form_tag_start".
1.159 albertel 2302: '<input type="hidden" name="submitted" value="yes" />';
2303: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2304: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2305: $result.= '<button type="submit" name="resetdata" '.
2306: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2307: &practice_problem_header().'<hr />';
1.428 raeburn 2308: }
1.159 albertel 2309: }
2310: return $result;
1.48 albertel 2311: }
2312:
2313: sub end_library {
1.159 albertel 2314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2315: my $result='';
2316: if ($target eq 'edit') {
2317: $result=&problem_edit_footer();
1.371 albertel 2318: } elsif ($target eq 'web'
2319: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2320: && $env{'request.state'} eq "construct") {
1.349 albertel 2321: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.558 raeburn 2322: } elsif ($target eq 'meta') {
1.559 raeburn 2323: $result.=&Apache::response::meta_part_order('library');
1.558 raeburn 2324: $result.=&Apache::response::meta_response_order();
1.159 albertel 2325: }
1.371 albertel 2326: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2327: &reset_problem_globals('library');
2328: }
1.159 albertel 2329: return $result;
1.197 www 2330: }
2331:
2332: sub start_definetag {
1.326 albertel 2333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2334:
2335: my $result;
2336:
2337: my $name = $token->[2]->{'name'};
1.326 albertel 2338: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2339: if ($target eq 'web') {
2340: if ($name=~/^\//) {
2341: $result=
2342: '<br /><table class="LC_sty_end"><tr><th>'.
2343: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2344: } else {
2345: $result=
2346: '<br /><table class="LC_sty_begin"><tr><th>'.
2347: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2348: }
2349: $skip = &HTML::Entities::encode($skip, '<>&"');
2350: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2351: }
2352: return $result;
2353: }
2354:
2355: sub end_definetag {
2356: return '';
1.1 albertel 2357: }
2358:
2359: sub start_block {
1.201 albertel 2360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2361:
2362: my $result;
1.1 albertel 2363:
1.339 albertel 2364: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2365: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2366: my $code = $token->[2]->{'condition'};
1.385 albertel 2367: if (defined($code) && $code ne '') {
1.137 albertel 2368: if (!$Apache::lonxml::default_homework_loaded) {
2369: &Apache::lonxml::default_homework_load($safeeval);
2370: }
1.131 albertel 2371: $result = &Apache::run::run($code,$safeeval);
2372: &Apache::lonxml::debug("block :$code: returned :$result:");
2373: } else {
2374: $result='1';
2375: }
2376: if ( ! $result ) {
1.201 albertel 2377: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2378: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2379: }
2380: $result='';
2381: } elsif ($target eq 'edit') {
2382: $result .=&Apache::edit::tag_start($target,$token);
2383: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2384: $token,40);
2385: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2386: } elsif ($target eq 'modified') {
2387: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2388: $safeeval,'condition');
2389: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2390: }
1.131 albertel 2391: return $result;
1.1 albertel 2392: }
2393:
2394: sub end_block {
1.167 www 2395: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2396: my $result;
2397: if ($target eq "edit") {
2398: $result.= &Apache::edit::tag_end($target,$token,'');
2399: }
2400: return $result;
2401: }
1.500 foxr 2402: #
2403: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2404: # ...
2405: # </languageblock>
2406: #
2407: # This declares the intent to provide content that can be rendered in the
2408: # set of languages in the include specificatino but not in the exclude
2409: # specification. If a currently preferred language is in the include list
2410: # the content in the <languageblock>...</languageblock> is rendered
2411: # If the currently preferred language is in the exclude list,
2412: # the content in the <languageblock>..></languageblock is not rendered.
2413: #
2414: # Pathalogical case handling:
2415: # - Include specified, without the preferred language but exclude specified
2416: # also without the preferred langauge results in rendering the block.
2417: # - Exclude specified without include and excluden not containing a
2418: # preferred language renders the block.
2419: # - Include and exclude both specifying the preferred language does not
2420: # render the block.
2421: # - If neither include/exclude is specified, the block gets rendered.
2422: #
2423: # This tag has no effect when target is in {edit, modified}
2424: #
1.167 www 2425: sub start_languageblock {
1.201 albertel 2426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2427:
1.500 foxr 2428: my $result = '';
1.167 www 2429:
1.339 albertel 2430: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2431: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2432: my $include = $token->[2]->{'include'};
2433: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2434: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2435:
2436: # This should not even happen, since we should at least have the server language
2437:
2438: if (!$preferred_languages[0]) {
2439: $preferred_languages[0]='en';
2440: }
2441:
2442: # Now loop over all languages in order of preference
2443:
2444: my $render;
1.398 www 2445: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2446:
2447: # If neither include/nor exlude is present the block is going
2448: # to get rendered.
2449:
1.399 www 2450: my $found=0;
1.500 foxr 2451: $render=1;
2452:
2453: # If include is specified, don't render the block
2454: # unless the preferred language is included in the set.
2455:
1.398 www 2456: if ($include) {
1.500 foxr 2457: $render=0;
1.398 www 2458: foreach my $included_language (split(/\,/,$include)) {
2459: if ($included_language eq $preferred_language) {
1.500 foxr 2460: $render=1;
1.399 www 2461: $found=1;
1.500 foxr 2462: last; # Only need to find the first.
1.398 www 2463: }
2464: }
2465: }
1.500 foxr 2466: # Do we have an exclude argument?
2467: # If so, and one of the languages matches a preferred language
2468: # inhibit rendering the block. Note that in the pathalogical case the
2469: # author has specified a preferred language in both the include and exclude
2470: # attribte exclude is preferred.
2471:
1.398 www 2472: if ($exclude) {
1.500 foxr 2473: $render=1;
1.398 www 2474: foreach my $excluded_language (split(/\,/,$exclude)) {
2475: if ($excluded_language eq $preferred_language) {
1.500 foxr 2476: $render=0;
1.399 www 2477: $found=1;
1.500 foxr 2478: last; # Only need to find the first.
1.398 www 2479: }
2480: }
2481: }
1.500 foxr 2482: if ($found) {
2483: last; # Done on any match of include or exclude.
2484: }
1.398 www 2485: }
1.500 foxr 2486: # If $render not true skip the entire block until </languageblock>
2487: #
2488:
2489: if ( ! $render ) {
1.201 albertel 2490: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2491: $style);
2492: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2493: }
1.500 foxr 2494: # If $render is true, we've not skipped the contents of the <languageglock>
2495: # and the normal loncapa processing flow will render it as a matter of course.
2496:
1.167 www 2497: } elsif ($target eq 'edit') {
2498: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2499: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2500: $token,40);
1.211 albertel 2501: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2502: $token,40);
2503: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2504: } elsif ($target eq 'modified') {
2505: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2506: $safeeval,'include',
2507: 'exclude');
1.167 www 2508: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2509: }
2510: return $result;
2511: }
2512:
2513: sub end_languageblock {
1.170 www 2514: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2515: my $result;
1.201 albertel 2516: if ($target eq "edit") {
1.170 www 2517: $result.= &Apache::edit::tag_end($target,$token,'');
2518: }
2519: return $result;
2520: }
1.500 foxr 2521: # languagblock specific tags:
2522: {
2523: # For chunks of a resource that has translations, this hash contains
2524: # the translations available indexed by language name.
2525: #
2526:
2527: my %available_texts;
1.170 www 2528:
1.500 foxr 2529: # <translated> starts a block of a resource that has multiple translations.
2530: # See the <lang> tag as well.
2531: # When </translated> is encountered if there is a translation for the
2532: # currently preferred language, that is rendered inthe web/tex/webgrade
2533: # targets. Otherwise, the default text is rendered.
2534: #
2535: # Note that <lang> is only registered for the duration of the
2536: # <translated>...</translated> block
2537: #
2538: # Pathalogical case handling:
2539: # - If there is no <lang> that specifies a 'default' and there is no
2540: # translation that matches a preferred language, nothing is rendered.
2541: # - Nested <translated>...</translated> might be linguistically supported by
2542: # XML due to the stack nature of tag registration(?) however the rendered
2543: # output will be incorrect because there is only one %available_texts
2544: # has and end_translated clears it.
2545: # - Material outside of a <lang>...</lang> block within the
2546: # <translated>...<translated> block won't render either e.g.:
2547: # <translated>
2548: # The following will be in your preferred langauge:
2549: # <lang which='en'>
2550: # This section in english
2551: # </lang>
2552: # <lang which='sgeiso'>
2553: # Hier es ist auf Deutsch.
2554: # </lang>
2555: # <lang which='sfriso'>
2556: # En Francais
2557: # </lang>
2558: # </translated>
2559: #
2560: # The introductory text prior to the first <lang> tag is not rendered.
2561: #
1.397 albertel 2562: sub start_translated {
2563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2564: &Apache::lonxml::register('Apache::structuretags',('lang'));
2565: undef(%available_texts);
2566: }
2567:
2568: sub end_translated {
2569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2570: my $result;
2571: #show the translation on viewable targets
2572: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2573: # or non-viewable targets, if it's embedded in something that
2574: # wants the output
2575: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2576: && &Apache::lonxml::in_redirection() ) ) {
2577: my @possibilities = keys(%available_texts);
2578: my $which =
2579: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2580: if ($target eq 'tex') {
2581: $result = &select_hyphenation($which);
2582: }
2583: $result .= $available_texts{$which};
2584: if ($target eq 'tex') {
2585: $result .= &select_metadata_hyphenation(); # Restore original language.
2586: }
1.397 albertel 2587: }
2588: undef(%available_texts);
2589: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2590: return $result;
2591: }
2592:
1.500 foxr 2593: # <lang [which='language-name'] [other='lang1,lang2...']>
2594: # Specifies that the block contained within it is a translation
2595: # for a specific language specified by the 'which' attribute. The
2596: # 'other' attribute can be used by itself or in conjunction with
2597: # which to specify this tag _may_ be used as a translation for some
2598: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2599: # specifying that the block provides a translation for US (primary)
2600: # Canadian, Australian and UK Englush.
2601: #
2602: # Comment: this seems a bit silly why not just support a list of languages
2603: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2604: #
2605: # Effect:
2606: # The material within the <lang>..</lang> block is stored in the
2607: # specified set of $available_texts hash entries, the appropriate one
2608: # is selected at </translated> time.
2609: #
2610: # Pathalogical case handling:
2611: # If a language occurs multiple times within a <translated> block,
2612: # only the last one is rendered e.g.:
2613: #
2614: # <translated>
2615: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2616: # Red green color blindness is quite common affecting about 7.8% of
2617: # the male population, but onloy about .65% of the female population.
2618: # </lang>
2619: # Red green colour blindness is quite common affecting about 7.8% of
2620: # the male population, but onloy about .65% of the female population.
2621: # <lang which='seniso', other='senisoCA,senisoAU'>
2622: # </translated>
2623: #
2624: # renders the correct spelling of color (colour) for people who have specified
2625: # a preferred language that is one of the British Commonwealth languages
2626: # even though those are also listed as valid selections for the US english
2627: # <lang> block.
2628: #
1.397 albertel 2629: sub start_lang {
2630: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2631: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2632: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2633: &Apache::lonxml::startredirection();
2634: }
2635: return '';
2636: }
2637:
2638: sub end_lang {
2639: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2640: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2641: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2642: my $result = &Apache::lonxml::endredirection();
2643: my $which = &Apache::lonxml::get_param('which',$parstack,
2644: $safeeval);
1.431 raeburn 2645: if ($which=~/\w/) {
2646: $available_texts{$which} = $result;
2647: }
2648: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2649: $safeeval);
2650: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2651: if ($language=~/\w/) {
2652: $available_texts{$language} = $result;
2653: }
1.427 bisitz 2654: }
2655:
1.397 albertel 2656: }
2657: return '';
2658: }
1.500 foxr 2659: } # end langauge block specific tags.
2660:
1.397 albertel 2661:
1.170 www 2662: sub start_instructorcomment {
1.201 albertel 2663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2664:
2665: my $result;
2666:
1.339 albertel 2667: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2668: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2669: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2670: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2671: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2672: $parser,$style);
1.170 www 2673: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2674: }
2675: $result='';
2676: } elsif ($target eq 'edit') {
2677: $result .=&Apache::edit::tag_start($target,$token);
2678: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2679: }
2680: return $result;
2681: }
2682:
2683: sub end_instructorcomment {
1.159 albertel 2684: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2685: my $result;
2686: if ($target eq "edit") {
2687: $result.= &Apache::edit::tag_end($target,$token,'');
2688: }
2689: return $result;
1.4 tsai 2690: }
2691:
2692: sub start_while {
1.326 albertel 2693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2694:
1.160 albertel 2695: my $result;
1.339 albertel 2696: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2697: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2698: my $code = $token->[2]->{'condition'};
1.4 tsai 2699:
1.160 albertel 2700: push( @Apache::structuretags::whileconds, $code);
2701: if (!$Apache::lonxml::default_homework_loaded) {
2702: &Apache::lonxml::default_homework_load($safeeval);
2703: }
2704: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2705: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2706: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2707: push( @Apache::structuretags::whileline, $token->[5]);
2708: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2709: if ( $result ) {
2710: &Apache::lonxml::newparser($parser,\$bodytext);
2711: }
2712: } elsif ($target eq 'edit') {
2713: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2714: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2715: $token,40);
2716: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2717: } elsif ($target eq 'modified') {
2718: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2719: $safeeval,'condition');
2720: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2721: }
1.160 albertel 2722: return $result;
1.4 tsai 2723: }
2724:
2725: sub end_while {
1.159 albertel 2726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2727: my $result;
2728:
1.339 albertel 2729: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2730: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2731: my $code = pop(@Apache::structuretags::whileconds);
2732: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2733: my $line = pop(@Apache::structuretags::whileline);
2734: my $return = &Apache::run::run($code,$safeeval);
2735: my $starttime=time;
2736: my $error=0;
2737: while ($return) {
2738: if (time-$starttime >
2739: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2740: $return = 0; $error=1; next;
1.161 albertel 2741: }
2742: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2743: if ($target eq 'grade' || $target eq 'answer' ||
2744: $target eq 'analyze') {
2745: # grade/answer/analyze should produce no output but if we
2746: # are redirecting, the redirecter should know what to do
2747: # with the output
2748: if (!$Apache::lonxml::redirection) { undef($result); }
2749: }
1.161 albertel 2750: $return = &Apache::run::run($code,$safeeval);
2751: }
1.516 bisitz 2752: if ($error) {
2753: &Apache::lonxml::error(
2754: '<pre>'
2755: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2756: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2757: .&mt('This occurred while running <while> on line [_1].',
2758: $line)
2759: .'</pre>');
2760: }
1.160 albertel 2761: } elsif ($target eq "edit") {
2762: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2763: }
1.160 albertel 2764: return $result;
1.1 albertel 2765: }
1.6 tsai 2766:
1.160 albertel 2767: # <randomlist show="1">
1.6 tsai 2768: # <tag1>..</tag1>
2769: # <tag2>..</tag2>
2770: # <tag3>..</tag3>
1.160 albertel 2771: # ...
1.6 tsai 2772: # </randomlist>
2773: sub start_randomlist {
1.326 albertel 2774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2775: my $result;
1.339 albertel 2776: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2777: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2778: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2779: my $b_parser= HTML::LCParser->new(\$body);
2780: $b_parser->xml_mode(1);
2781: $b_parser->marked_sections(1);
1.159 albertel 2782: my $b_tok;
2783: my @randomlist;
2784: my $list_item;
2785: while($b_tok = $b_parser->get_token() ) {
2786: if($b_tok->[0] eq 'S') { # start tag
2787: # get content of the tag until matching end tag
2788: # get all text upto the matching tag
2789: # and push the content into @randomlist
2790: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2791: $b_parser);
2792: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2793: push(@randomlist,$list_item);
2794: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2795: # $list_item</b>";
2796: }
2797: if($b_tok->[0] eq 'T') { # text
2798: # what to do with text in between tags?
2799: # print "<b>TEXT $b_tok->[1]</b><br />";
2800: }
2801: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2802: # print "<b>END-TAG $b_tok->[1]</b><br />";
2803: # }
2804: }
1.303 albertel 2805: if (@randomlist) {
2806: my @idx_arr = (0 .. $#randomlist);
1.555 raeburn 2807: if ($env{'form.code_for_randomlist'}) {
2808: &Apache::structuretags::shuffle(\@idx_arr,$target);
2809: undef($env{'form.code_for_randomlist'});
2810: } else {
2811: &Apache::structuretags::shuffle(\@idx_arr);
2812: }
1.303 albertel 2813: my $bodytext = '';
2814: my $show=$#randomlist;
2815: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2816: $showarg--;
2817: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2818: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2819: my @currlist;
2820: my $part = $Apache::inputtags::part;
2821: if ($part ne '') {
2822: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2823: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2824: if (!(grep(/^\Q$part\E$/,@currlist))) {
2825: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2826: }
2827: } else {
2828: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2829: }
2830: }
2831: }
1.526 raeburn 2832: for my $i (0 .. $show) {
2833: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2834: }
2835: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2836: }
2837: } elsif ($target eq 'edit' ) {
2838: $result .=&Apache::edit::tag_start($target,$token);
2839: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2840: $token,5);
2841: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2842: } elsif ($target eq 'modified' ) {
2843: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2844: $safeeval,'show');
2845: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2846: }
2847: return $result;
1.7 tsai 2848: }
2849:
2850: sub shuffle {
1.555 raeburn 2851: my ($a,$target) = @_;
1.7 tsai 2852: my $i;
1.303 albertel 2853: if (ref($a) eq 'ARRAY' && @$a) {
1.555 raeburn 2854: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2855: for($i=@$a;--$i;) {
2856: my $j=int(&Math::Random::random_uniform() * ($i+1));
2857: next if $i == $j;
2858: @$a[$i,$j] = @$a[$j,$i];
2859: }
1.251 albertel 2860: &Apache::response::poprandomnumber();
1.7 tsai 2861: }
1.6 tsai 2862: }
2863:
2864: sub end_randomlist {
1.159 albertel 2865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2866: my $result;
2867: if ($target eq 'edit' ) {
2868: $result=&Apache::edit::tag_end($target,$token,
2869: 'End Randomly Parsed Block');
2870: }
2871: return $result;
1.6 tsai 2872: }
2873:
1.283 albertel 2874: sub ordered_show_check {
2875: my $last_part=$Apache::inputtags::partlist[-2];
2876: my $in_order=
2877: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2878: my $in_order_show=1;
2879: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2880: $in_order_show=&Apache::response::check_status($last_part);
2881: }
2882: return $in_order_show;
2883: }
2884:
1.469 www 2885:
2886: sub start_startpartmarker {
2887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2888: my $result='';
2889: if ($target eq 'edit') {
2890: $result=&Apache::edit::tag_start($target,$token);
2891: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2892: $result.=&Apache::edit::end_table();
2893:
2894: }
2895: return $result;
2896: }
2897:
2898: sub end_startpartmarker {
2899: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2900: my @result;
2901: if ($target eq 'edit') { $result[1]='no'; }
2902: return @result;
2903: }
2904:
2905: sub start_endpartmarker {
2906: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2907: my $result='';
2908: if ($target eq 'edit') {
2909: $result=&Apache::edit::tag_start($target,$token);
2910: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2911: $result.=&Apache::edit::end_table();
2912:
2913: }
2914: return $result;
2915: }
2916:
2917: sub end_endpartmarker {
2918: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2919: my @result;
2920: if ($target eq 'edit') { $result[1]='no'; }
2921: return @result;
2922: }
2923:
2924:
2925:
2926:
2927:
1.11 albertel 2928: sub start_part {
1.326 albertel 2929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2930: if (!$Apache::lonxml::metamode) {
2931: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2932: # duedates.
2933: }
1.159 albertel 2934: my $result='';
1.386 albertel 2935: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2936: $Apache::inputtags::part=$id;
1.177 albertel 2937: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2938: $Apache::inputtags::leniency='';
1.177 albertel 2939: @Apache::inputtags::response=();
1.159 albertel 2940: @Apache::inputtags::previous=();
2941: @Apache::inputtags::previous_version=();
1.405 albertel 2942: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2943: &Apache::response::reset_params();
2944:
1.159 albertel 2945: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2946: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2947: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2948: if ($Apache::lonhomework::type eq 'randomizetry') {
2949: my $rndseed=&setup_rndseed($safeeval,$target);
2950: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2951: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2952: }
2953: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2954: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2955: }
1.283 albertel 2956: my $in_order_show=&ordered_show_check();
1.214 albertel 2957: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2958: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2959: &Apache::run::run($expression,$safeeval);
1.159 albertel 2960:
2961: if ($target eq 'meta') {
1.224 www 2962: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2963: return &Apache::response::mandatory_part_meta.
2964: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2965: } elsif ($target eq 'web' || $target eq 'grade' ||
2966: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2967: if ($hidden || !$in_order_show) {
1.326 albertel 2968: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2969: } else {
2970: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2971: push (@Apache::inputtags::status,$status);
2972: my $expression='$external::datestatus="'.$status.'";';
2973: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2974: &Apache::run::run($expression,$safeeval);
1.284 albertel 2975: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2976: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2977: }
1.216 albertel 2978: if (( $status eq 'CLOSED' ) ||
2979: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2980: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2981: ( $status eq 'BANNED') ||
2982: ( $status eq 'UNAVAILABLE') ||
2983: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2984: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2985: $style);
1.159 albertel 2986: if ( $target eq "web" ) {
1.211 albertel 2987: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2988: } elsif ( $target eq 'tex' ) {
1.284 albertel 2989: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2990: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2991: } else {
1.211 albertel 2992: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2993: }
1.159 albertel 2994: }
2995: } else {
2996: if ($target eq 'tex') {
1.284 albertel 2997: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2998: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2999: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 3000: } else {
3001: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
3002: }
1.195 sakharuk 3003: }
1.159 albertel 3004: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 3005: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 3006: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 3007: my $allow_print_points = 0;
3008: foreach my $partial_key (@allkeys) {
1.230 albertel 3009: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 3010: if ($1 ne '0') {$allow_print_points=1;}
3011: }
3012: }
1.275 albertel 3013: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
3014: if (defined($maxtries) && $maxtries < 0) {
3015: $allow_print_points=0;
3016: }
1.302 albertel 3017: if (lc($env{'course.'.$env{'request.course.id'}.
3018: '.disableexampointprint'}) eq 'yes') {
3019: $allow_print_points=0;
3020: }
1.463 foxr 3021: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3022: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3023:
3024: }
1.233 www 3025: } elsif ($target eq 'web') {
1.479 raeburn 3026: if ($status eq 'CAN_ANSWER') {
3027: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3028: my $num = scalar(@Apache::inputtags::partlist)-1;
1.567 raeburn 3029: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3030: ($Apache::lonhomework::randomizetrypart)) &&
1.566 raeburn 3031: ($Apache::lonhomework::type ne 'randomizetry')) {
3032: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3033: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3034: $Apache::lonhomework::randomizetrypart = 1;
3035: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3036: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3037: }
3038: }
1.475 raeburn 3039: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3040: }
3041: }
3042: }
3043: } elsif ($target eq 'edit') {
3044: $result.=&Apache::edit::tag_start($target,$token);
3045: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3046: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3047: ' '.
3048: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3049: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3050: } elsif ($target eq 'modified') {
3051: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3052: $safeeval,'id','display');
1.159 albertel 3053: if ($constructtag) {
1.225 albertel 3054: #limiting ids to only letters numbers, and space
1.224 www 3055: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3056: $result = &Apache::edit::rebuild_tag($token);
3057: }
3058: }
3059: return $result;
1.11 albertel 3060: }
3061:
3062: sub end_part {
1.159 albertel 3063: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3064: &Apache::lonxml::debug("in end_part $target ");
3065: my $status=$Apache::inputtags::status['-1'];
3066: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3067: my $in_order_show=&ordered_show_check();
1.321 albertel 3068: my $result;
3069: if (!$Apache::lonxml::metamode) {
3070: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3071: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3072: }
1.312 albertel 3073: if ($target eq 'grade') {
1.249 albertel 3074: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3075: !$hidden && $in_order_show) {
1.311 foxr 3076: $result.=&Apache::inputtags::grade;
1.249 albertel 3077: } else {
3078: # move any submission data to .hidden
3079: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3080: }
1.283 albertel 3081: } elsif (($target eq 'web' || $target eq 'tex') &&
3082: !$hidden && $in_order_show) {
1.159 albertel 3083: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3084: $target);
1.490 raeburn 3085: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3086: ($env{'form.grade_imsexport'})) {
1.212 albertel 3087: $gradestatus='';
3088: }
1.311 foxr 3089: $result.=$gradestatus;
1.265 sakharuk 3090: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 3091: } elsif ($target eq 'edit') {
1.311 foxr 3092: $result.=&Apache::edit::end_table();
1.322 albertel 3093: } elsif ($target eq 'modified') {
3094: $result .= $token->[2];
1.159 albertel 3095: }
3096: pop @Apache::inputtags::status;
3097: $Apache::inputtags::part='';
1.536 raeburn 3098: $Apache::inputtags::leniency='';
1.295 albertel 3099: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3100: return $result;
1.11 albertel 3101: }
1.1 albertel 3102:
1.25 albertel 3103: sub start_preduedate {
1.326 albertel 3104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3105: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3106: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3107: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3108: if (!$Apache::lonhomework::scantronmode &&
3109: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3110: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3111: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3112: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3113: }
1.24 albertel 3114: }
1.159 albertel 3115: return '';
1.24 albertel 3116: }
3117:
1.25 albertel 3118: sub end_preduedate {
1.159 albertel 3119: return '';
1.24 albertel 3120: }
3121:
1.369 foxr 3122: # In all the modes where <postanswerdate> text is
3123: # displayable, all we do is eat up the text between the start/stop
3124: # tags if the conditions are not right to display it.
1.25 albertel 3125: sub start_postanswerdate {
1.326 albertel 3126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3127: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3128: &Apache::lonnet::allowed('pav',
3129: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3130: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3131: $target eq 'tex' ) {
1.300 albertel 3132: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3133: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3134: (($target eq 'tex') && !$pav)) {
1.326 albertel 3135: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3136: }
3137: }
3138: return '';
1.24 albertel 3139: }
3140:
1.25 albertel 3141: sub end_postanswerdate {
1.159 albertel 3142: return '';
1.24 albertel 3143: }
3144:
1.25 albertel 3145: sub start_notsolved {
1.326 albertel 3146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3147: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3148: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3149: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3150: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3151: if ($gradestatus =~ /^correct/ &&
3152: &Apache::response::show_answer()) {
1.159 albertel 3153: &Apache::lonxml::debug("skipping");
1.326 albertel 3154: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3155: }
1.24 albertel 3156: }
1.159 albertel 3157: return '';
1.24 albertel 3158: }
3159:
1.25 albertel 3160: sub end_notsolved {
1.159 albertel 3161: return '';
1.24 albertel 3162: }
3163:
3164: sub start_solved {
1.326 albertel 3165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3166: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3167: $target eq 'tex') {
3168: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3169: if ($gradestatus !~ /^correct/ ||
3170: !&Apache::response::show_answer()) {
1.326 albertel 3171: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3172: }
1.24 albertel 3173: }
1.159 albertel 3174: return '';
1.24 albertel 3175: }
3176:
3177: sub end_solved {
1.248 albertel 3178: return '';
3179: }
3180:
3181: sub start_problemtype {
1.326 albertel 3182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3183: my $result;
1.339 albertel 3184: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3185: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3186: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3187: if (!defined($mode)) { $mode='show'; }
3188: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3189: my $found=0;
3190: foreach my $type (split(',',$for)) {
3191: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3192: }
3193: if ($mode eq 'show' && !$found) {
1.326 albertel 3194: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3195: }
3196: if ($mode eq 'hide' && $found) {
1.326 albertel 3197: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3198: }
3199: } elsif ($target eq 'edit') {
3200: $result .=&Apache::edit::tag_start($target,$token);
3201: $result.=&Apache::edit::select_arg('Mode:','mode',
3202: [['show','Show'],
3203: ['hide','Hide']]
3204: ,$token);
3205: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3206: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3207: ['survey','Survey'],
1.465 raeburn 3208: ['surveycred','Survey (with credit)'],
3209: ['anonsurvey','Anonymous Survey'],
3210: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3211: ['problem','Homework Problem'],
1.479 raeburn 3212: ['practice','Practice Problem'],
3213: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3214: ,$token);
3215: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3216: } elsif ($target eq 'modified') {
3217: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3218: $safeeval,'mode','for');
3219: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3220: }
3221: return $result;
3222: }
3223:
3224: sub end_problemtype {
1.159 albertel 3225: return '';
1.24 albertel 3226: }
1.34 albertel 3227:
3228: sub start_startouttext {
1.159 albertel 3229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3230: my @result=(''.'');
3231: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3232:
3233: my $nesting =
3234: &Apache::lonxml::set_state('outtext',
3235: &Apache::lonxml::get_state('outtext')+1);
3236: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3237: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3238: }
1.159 albertel 3239: return (@result);
1.34 albertel 3240: }
1.159 albertel 3241:
1.34 albertel 3242: sub end_startouttext {
1.326 albertel 3243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3244: my $result='';
3245: my $text='';
3246: if ($target eq 'edit') {
1.424 foxr 3247: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3248: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3249: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3250: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3251: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3252: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3253: .'</span></td>'
1.550 raeburn 3254: .'<td><span id="math_'.$areaid.'">';
3255: if ($env{'environment.nocodemirror'}) {
3256: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3257: } else {
3258: $result.=' ';
3259: }
3260: $result.='</span></td>'
1.474 raeburn 3261: .'<td>'
3262: .&Apache::edit::insertlist($target,$token)
3263: .'</td>'
1.515 golterma 3264: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3265: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3266: &Apache::edit::end_row().
1.362 albertel 3267: &Apache::edit::start_spanning_row()."\n".
1.255 www 3268: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3269: }
3270: if ($target eq 'modified') {
1.219 albertel 3271: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3272: }
3273: if ($target eq 'tex') {
3274: $result .= '\noindent ';
3275: }
3276: return $result;
1.34 albertel 3277: }
1.159 albertel 3278:
1.34 albertel 3279: sub start_endouttext {
1.159 albertel 3280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3281: my $result='';
3282: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3283: if ($target eq "modified") {
3284: $result='<endouttext />'.
1.377 albertel 3285: &Apache::edit::handle_insertafter('startouttext');
3286: }
1.404 albertel 3287:
3288: my $nesting =
3289: &Apache::lonxml::set_state('outtext',
3290: &Apache::lonxml::get_state('outtext')-1);
3291: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3292: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3293: &Apache::lonxml::set_state('outtext', 0);
3294: }
1.159 albertel 3295: return $result;
1.34 albertel 3296: }
1.159 albertel 3297:
1.34 albertel 3298: sub end_endouttext {
1.159 albertel 3299: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3300: my @result=('','');
3301: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3302: return (@result);
1.34 albertel 3303: }
1.159 albertel 3304:
1.45 albertel 3305: sub delete_startouttext {
1.326 albertel 3306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3307: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3308: my $text=$$parser['-1']->get_text("/endouttext");
3309: my $ntoken=$$parser['-1']->get_token();
3310: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3311: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3312: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3313: # they did the last time round
3314: &Apache::lonxml::increasedepth($ntoken);
3315: &Apache::lonxml::decreasedepth($ntoken);
3316: return 1;
1.193 www 3317: }
3318:
3319: sub start_simpleeditbutton {
3320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3321: my $result='';
1.284 albertel 3322: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3323: ($target eq 'web') &&
1.330 albertel 3324: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3325: my $url=$env{'request.noversionuri'};
1.193 www 3326: $url=~s/\?.*$//;
1.367 albertel 3327: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3328: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3329: # $result='<p class="LC_warning">'
3330: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3331: # .&Apache::loncommon::help_open_topic('Caching')
3332: # .'</p>';
1.486 www 3333: $result.=&Apache::loncommon::head_subbox(
3334: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3335: .&Apache::lonhtmlcommon::add_item_funclist(
3336: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3337: .&mt('Edit').'</a>')
1.486 www 3338: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3339:
1.193 www 3340: }
3341: return $result;
3342: }
3343:
3344: sub end_simpleeditbutton {
3345: return '';
1.45 albertel 3346: }
1.34 albertel 3347:
1.428 raeburn 3348: sub practice_problem_header {
1.556 raeburn 3349: return '<h3 class="LC_info">'.&mt('Practice Problem').'</h3>'.
1.428 raeburn 3350: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3351: '</span>';
3352: }
3353:
1.479 raeburn 3354: sub randomizetry_problem_header {
1.566 raeburn 3355: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3356: my ($header,$text);
3357: if ($reqtries > 1) {
3358: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3359: if (($problemstatus eq 'no') ||
3360: ($problemstatus eq 'no_feedback_ever')) {
3361: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3362: } else {
3363: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3364: }
3365: } else {
3366: $header = &mt('New Problem Variation Each Try');
3367: if (($problemstatus eq 'no') ||
3368: ($problemstatus eq 'no_feedback_ever')) {
3369: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3370:
3371: } else {
3372: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3373: }
3374: }
1.566 raeburn 3375: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3376: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3377: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3378: } else {
3379: return '<h3 class="LC_info">'.$header.'</h3>'.
3380: '<span class="LC_info">'.$text.'</span><hr />';
3381: }
1.479 raeburn 3382: }
3383:
3384: sub randomizetry_part_header {
3385: my ($problemstatus,$reqtries,$num) = @_;
3386: my ($header,$text);
3387: if ($reqtries eq 'none') {
3388: $header = &mt('No Question Variation');
3389: $text = &mt('For this question there will no new variation after a try.');
3390: } elsif ($reqtries > 1) {
3391: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3392: if (($problemstatus eq 'no') ||
3393: ($problemstatus eq 'no_feedback_ever')) {
3394: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3395: } else {
3396: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3397: }
3398: } else {
3399: $header = &mt('New Question Variation For Each Try');
3400: if (($problemstatus eq 'no') ||
3401: ($problemstatus eq 'no_feedback_ever')) {
3402: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3403: } else {
3404: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3405: }
3406: }
3407: my $output;
3408: if ($num > 1) {
3409: $output .= '<hr />';
3410: }
1.556 raeburn 3411: $output .= '<h4 class="LC_info">'.$header.'</h4>'.
1.479 raeburn 3412: '<span class="LC_info">'.$text.'</span><br /><br />';
3413: return $output;
3414: }
3415:
1.1 albertel 3416: 1;
3417: __END__
1.435 jms 3418:
3419: =pod
3420:
3421: =back
3422:
3423: =cut
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