Annotation of loncom/homework/structuretags.pm, revision 1.574
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.574 ! raeburn 4: # $Id: structuretags.pm,v 1.573 2023/02/03 16:52:57 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 );
1.571 raeburn 66: use HTML::Entities();
1.356 www 67: use lib '/home/httpd/lib/perl/';
68: use LONCAPA;
69:
1.78 harris41 70: BEGIN {
1.553 damieng 71: &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 72: }
73:
1.500 foxr 74:
75: #---------------------------------------------------------------------------------
76: #
77: # This section of code deals with hyphenation management.
78: # We must do three things:
79: # - keep track fo the desired languages to alter the header.
80: # - provide hyphenation selection as needed by each language that appears in the
81: # text.
82: # - Provide the header text needed to make available the desired hyphenations.
83: #
84: #
85:
86: # Hash whose keys are the languages encountered in the document/resource.
87: #
88:
89: my %languages_required;
90: ##
91: # Given a language selection as input returns a chunk of LaTeX that
92: # selects the required hyphenator.
93: #
94: # @param language - the language being selected.
95: # @return string
96: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
97: #
98: sub select_hyphenation {
99: my $language = shift;
100:
101: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
102:
103: # If there is no latex language there's not much we can do:
104:
105: if ($language) {
106: &require_language($language);
107: my $babel_hyphenation = "\\selectlanguage{$language}";
108:
109: return $babel_hyphenation;
110: } else {
111: return '';
112: }
113: }
114: ##
115: # Selects hyphenation based on the current problem metadata.
116: # This requires that
117: # - There is a language metadata item set for the problem.
118: # - The language has a latex/babel hyphenation.
119: #
120: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
121: # this problem.
122: # @return string (possibly empty).
123: # @retval If not empty an appropriate \selectlanguage{} directive.
124: #
125: sub select_metadata_hyphenation {
126: my $uri = $Apache::lonxml::request->uri;
127: my $language = &Apache::lonnet::metadata($uri, 'language');
128: my $latex_language = &Apache::loncommon::latexhyphenation($language);
129: if ($latex_language) {
130: return '\selectlanguage{'.$latex_language."}\n";
131: }
132: return ''; # no latex hyphenation or no lang metadata.
133: }
134:
135:
136: ##
137: # Clears the set of languages required by the document being rendered.
138: #
139: sub clear_required_languages {
140: %languages_required = ();
141: }
142: ##
143: # Allows an external client of this module to register a need for a language:
144: #
145: # @param LaTeX language required:
146: #
147: sub require_language {
148: my $language = shift;
149: $languages_required{$language} = 1;
150: }
151:
152: ##
153: # Provides the header for babel that indicates the languages
154: # the document requires.
155: # @return string
156: # @retval \usepackage[lang1,lang2...]{babel}
157: # @retval '' if there are no languages_required.
158: sub languages_header {
159: my $header ='';
160: my @languages = (keys(%languages_required));
161:
162: # Only generate the header if there are languages:
163:
164: if (scalar @languages) {
165: my $language_list = join(',', (@languages));
166: $header = '\usepackage['.$language_list."]{babel}\n";
167: }
168: return $header;
169: }
170:
171: #----------------------------------------------------------------------------------
172:
1.10 albertel 173: sub start_web {
1.326 albertel 174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 175: if ($target ne 'edit' && $target ne 'modified') {
176: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
177: if ($target eq 'web' || $target eq 'webgrade') {
178: return $bodytext;
179: }
180: } elsif ($target eq "edit" ) {
181: my $bodytext =
182: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
183: my $result = &Apache::edit::tag_start($target,$token);
184: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
185: return $result;
186: } elsif ( $target eq "modified" ) {
187: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 188: }
189: return '';
1.10 albertel 190: }
191:
192: sub end_web {
1.44 ng 193: return '';
1.10 albertel 194: }
195:
1.553 damieng 196: sub start_print {
197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
198: if ($target ne 'edit' && $target ne 'modified') {
199: if ($target ne 'tex') {
200: my $skip = &Apache::lonxml::get_all_text("/print",$parser,$style);
201: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
202: }
203: } elsif ($target eq "edit") {
204: my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/print",$parser);
205: my $result = &Apache::edit::tag_start($target,$token);
206: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
207: return $result;
208: } elsif ($target eq "modified") {
209: return $token->[4].&Apache::edit::modifiedfield("/print",$parser);
210: }
211: return '';
212: }
213:
214: sub end_print {
215: return '';
216: }
217:
1.10 albertel 218: sub start_tex {
1.326 albertel 219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 220: my $result='';
1.383 albertel 221: if ($target ne 'edit' && $target ne 'modified') {
222: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
223: if ($target eq 'tex') {
1.434 foxr 224:
225: # If inside a table, occurrences of \\ must be removed;
226: # else the table blows up.
227:
228: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
229: $bodytext =~ s/\\\\//g;
230: }
1.432 foxr 231: return $bodytext.'{}';
1.383 albertel 232: }
233: } elsif ($target eq "edit" ) {
234: my $bodytext =
235: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
236: my $result = &Apache::edit::tag_start($target,$token);
237: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
238: return $result;
239: } elsif ( $target eq "modified" ) {
240: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 241: }
1.198 sakharuk 242: return $result;;
1.10 albertel 243: }
244:
245: sub end_tex {
1.44 ng 246: return '';
1.9 albertel 247: }
248:
1.400 albertel 249: sub homework_js {
1.531 raeburn 250: my ($postsubmit,$timeout);
251: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
1.546 raeburn 252: my $crstype = &Apache::loncommon::course_type();
253: if ($crstype eq 'Community') {
1.531 raeburn 254: $crstype = 'community';
1.546 raeburn 255: } elsif ($crstype eq 'Placement') {
256: $crstype = 'placement';
1.531 raeburn 257: } else {
258: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
259: $crstype = 'official';
260: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
261: $crstype = 'textbook';
262: } else {
263: $crstype = 'unofficial';
264: }
265: }
266: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
267: if ($postsubmit eq '') {
268: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
269: $postsubmit = $domdefs{'postsubmit'};
270: unless ($postsubmit eq 'off') {
271: $timeout = $domdefs{$crstype.'postsubtimeout'};
272: }
273: } elsif ($postsubmit eq '0') {
274: $postsubmit = 'off';
275: } elsif ($postsubmit eq '1') {
276: $postsubmit = 'on';
277: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
278: if ($timeout eq '') {
279: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
280: $timeout = $domdefs{$crstype.'postsubtimeout'};
281: }
282: }
283: if ($timeout eq '') {
284: $timeout = 60;
285: }
286: } else {
287: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
288: $postsubmit = $domdefs{'postsubmit'};
289: unless ($postsubmit eq 'off') {
290: $timeout = 60;
291: }
292: }
293: my $jstimeout = 0;
294: if ($timeout) {
295: $jstimeout = 1000 * $timeout;
296: }
1.400 albertel 297: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 298: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 299: &setmode_javascript().
1.531 raeburn 300: <<"JS";
1.400 albertel 301: <script type="text/javascript">
1.483 raeburn 302: // <![CDATA[
1.494 raeburn 303: function setSubmittedPart (part,prefix) {
304: if (typeof(prefix) == 'undefined') {
305: this.document.lonhomework.submitted.value="part_"+part;
306: } else {
307: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
308: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
309: this.document.lonhomework.elements[i].value="part_"+part;
310: }
311: }
312: }
1.400 albertel 313: }
314:
1.532 raeburn 315: function disableAutoComplete (id) {
316: var field = document.getElementById(id);
317: if (field != null && field != undefined){
318: if ('autocomplete' in field) {
319: field.autocomplete = "off";
320: } else {
321: field.setAttribute("autocomplete", "off");
322: }
323: }
324: }
325:
1.400 albertel 326: function image_response_click (which, e) {
327: init_geometry();
328: if (!e) { e = window.event; } //IE
329: var input_element = document.lonhomework.elements[which];
1.401 albertel 330: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 331: var token = token_element.value;
1.401 albertel 332: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 333: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
334: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
335: var click = x+':'+y;
336: input_element.value = click;
1.485 raeburn 337: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 338: }
1.520 raeburn 339:
340: var submithandled = 0;
1.521 raeburn 341: var keypresshandled = 0;
1.531 raeburn 342: var postsubmit = '$postsubmit';
1.520 raeburn 343:
1.531 raeburn 344: \$(document).ready(function(){
345: if (postsubmit != 'off') {
346: \$(document).keypress(function(event){
1.521 raeburn 347: var keycode = (event.keyCode ? event.keyCode : event.which);
348: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 349: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 350: keypresshandled = 1;
1.531 raeburn 351: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 352: if (idsArray.length) {
353: event.preventDefault();
354: var itemsArray = idsArray[1].split(/_/);
355: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 356: \$("#"+buttonId).trigger("click");
1.521 raeburn 357: }
358: }
359: }
360: });
361:
1.531 raeburn 362: \$(document).delegate('form :submit', 'click', function( event ) {
363: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 364: var buttonId = this.id;
1.531 raeburn 365: var timeout = $jstimeout;
1.520 raeburn 366: if (submithandled == 0) {
367: submithandled = 1;
1.531 raeburn 368: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 369: "color": "black","padding": "2px"}) ;
1.563 raeburn 370: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 371: if (buttonId != "all_submit") {
1.531 raeburn 372: \$( ".LC_status_"+buttonId ).hide();
1.563 raeburn 373: }
374: if (( "#"+buttonId+"_pressed" ).length) {
375: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.520 raeburn 376: }
1.522 raeburn 377: } else {
1.531 raeburn 378: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 379: }
1.531 raeburn 380: \$(this.form).submit();
381: \$( ".LC_hwk_submit" ).prop( "disabled", true);
382: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 383: event.preventDefault();
1.531 raeburn 384:
385: if (timeout > 0) {
386: setTimeout(function(){
387: \$( "#msg_"+buttonId ).css({"display": "none"});
1.563 raeburn 388: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
389: if (( "#"+buttonId+"_pressed" ).length) {
390: \$( "#"+buttonId+"_pressed" ).val( "" );
1.531 raeburn 391: }
392: }
393: \$( ".LC_hwk_submit" ).prop( "disabled", false);
394: \$( ".LC_textline" ).prop( "readonly", false);
395: submithandled = 0;
396: keypresshandled = 0;
397: }, timeout);
398: }
1.520 raeburn 399: return true;
400: }
401: }
402: });
1.531 raeburn 403: }
1.520 raeburn 404: });
405:
1.483 raeburn 406: // ]]>
1.400 albertel 407: </script>
408: JS
409: }
410:
1.416 raeburn 411: sub setmode_javascript {
412: return <<"ENDSCRIPT";
413: <script type="text/javascript">
1.485 raeburn 414: // <![CDATA[
1.416 raeburn 415: function setmode(form,probmode) {
1.554 damieng 416: var initial = form.problemmode.value;
1.416 raeburn 417: form.problemmode.value = probmode;
418: form.submit();
1.554 damieng 419: form.problemmode.value = initial;
1.416 raeburn 420: }
1.485 raeburn 421: // ]]>
1.416 raeburn 422: </script>
423: ENDSCRIPT
424: }
425:
1.48 albertel 426: sub page_start {
1.345 albertel 427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
428: $extra_head)=@_;
1.159 albertel 429: my %found;
1.207 albertel 430: foreach my $taginside (@$tagstack) {
1.159 albertel 431: foreach my $taglookedfor ('html','body','form') {
432: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
433: }
434: }
435:
1.343 albertel 436: if ($target eq 'tex') {
437: return
438: &Apache::londefdef::start_html($target,$token,$tagstack,
439: $parstack,$parser,$safeeval);
440: }
441:
1.474 raeburn 442: $extra_head .= &homework_js().
443: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
444: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.550 raeburn 445: my %textarea_args;
446: if (($env{'request.state'} ne 'construct') ||
447: ($env{'environment.nocodemirror'})) {
448: %textarea_args = (
1.474 raeburn 449: dragmath => 'math',
450: );
1.550 raeburn 451: }
1.474 raeburn 452: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 453: }
1.478 raeburn 454: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 455: my ($needs_upload,$partlist);
1.495 raeburn 456: my ($symb)= &Apache::lonnet::whichuser();
457: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 458: if ($is_task) {
1.495 raeburn 459: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 460: } else {
461: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 462: unless ($env{'request.state'} eq 'construct') {
463: my $navmap = Apache::lonnavmaps::navmap->new();
464: if (ref($navmap)) {
465: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 466: my $is_page;
467: if (ref($mapres)) {
468: $is_page = $mapres->is_page();
469: }
470: unless ($is_page) {
1.495 raeburn 471: $needs_upload = 1;
472: }
1.528 raeburn 473: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
474: my $res = $navmap->getBySymb($symb);
475: if (ref($res)) {
476: $partlist = $res->parts();
477: }
478: }
1.495 raeburn 479: }
480: }
1.493 raeburn 481: } else {
482: unless ($env{'request.state'} eq 'construct') {
483: my $navmap = Apache::lonnavmaps::navmap->new();
484: if (ref($navmap)) {
1.495 raeburn 485: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 486: my $is_page;
487: if (ref($mapres)) {
488: $is_page = $mapres->is_page();
489: }
1.528 raeburn 490: if ($is_page) {
491: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
492: my $res = $navmap->getBySymb($symb);
493: if (ref($res)) {
494: $partlist = $res->parts();
495: }
496: }
497: } else {
1.495 raeburn 498: my $res = $navmap->getBySymb($symb);
499: if (ref($res)) {
1.528 raeburn 500: $partlist = $res->parts();
1.495 raeburn 501: if (ref($partlist) eq 'ARRAY') {
502: foreach my $part (@{$partlist}) {
503: my @types = $res->responseType($part);
504: my @ids = $res->responseIds($part);
505: for (my $i=0; $i < scalar(@ids); $i++) {
506: if ($types[$i] eq 'essay') {
507: my $partid = $part.'_'.$ids[$i];
508: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
509: $needs_upload = 1;
510: last;
511: }
1.493 raeburn 512: }
513: }
514: }
1.495 raeburn 515: }
516: }
1.493 raeburn 517: }
518: }
519: }
520: }
1.495 raeburn 521: if ($needs_upload) {
1.538 musolffc 522: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
523: .'<script type="text/javascript"
524: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 525: }
1.478 raeburn 526: }
1.425 raeburn 527:
1.344 albertel 528: my %body_args;
529: if (defined($found{'html'})) {
530: $body_args{'skip_phases'}{'head'}=1;
531: } else {
1.343 albertel 532:
1.345 albertel 533: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 534:
1.379 albertel 535: $extra_head .= &Apache::londefdef::generate_css_links();
536:
1.384 albertel 537: if ($env{'request.state'} eq 'construct') {
1.343 albertel 538: $extra_head.=&Apache::edit::js_change_detection().
539: "<script type=\"text/javascript\">\n".
540: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
541: &Apache::loncommon::browser_and_searcher_javascript().
542: "\n</script>\n";
1.525 raeburn 543: if ($target eq 'edit') {
544: $extra_head .= &Apache::edit::js_update_linknum();
545: }
1.343 albertel 546: }
1.159 albertel 547: }
1.343 albertel 548:
1.446 bisitz 549: my $pageheader = '';
1.344 albertel 550: if (defined($found{'body'})) {
551: $body_args{'skip_phases'}{'body'}=1;
552: } elsif (!defined($found{'body'})
553: && $env{'request.state'} eq 'construct') {
1.343 albertel 554: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 555: unless ($env{'form.inhibitmenu'} eq 'yes') {
556: # Breadcrumbs for Authoring Space
557: &Apache::lonhtmlcommon::clear_breadcrumbs();
558: &Apache::lonhtmlcommon::add_breadcrumb({
559: 'text' => 'Authoring Space',
560: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
561: });
562: # breadcrumbs (and tools) will be created
563: # in start_page->bodytag->innerregister
1.460 droeschl 564:
1.450 bisitz 565: # FIXME Where are we?
1.542 raeburn 566: # &Apache::lonhtmlcommon::add_breadcrumb({
567: # 'text' => 'Problem Editing', # 'Problem Testing'
568: # 'href' => '',
569: # });
570: $pageheader = &Apache::loncommon::head_subbox(
571: &Apache::loncommon::CSTR_pageheader());
572: }
573: }
1.272 albertel 574: } elsif (!defined($found{'body'})) {
1.343 albertel 575: my %add_entries;
1.159 albertel 576: my $background=&Apache::lonxml::get_param('background',$parstack,
577: $safeeval);
1.343 albertel 578: if ($background ne '' ) {
579: $add_entries{'background'} = $background;
580: }
1.344 albertel 581:
1.290 albertel 582: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
583: $safeeval);
1.446 bisitz 584: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 585:
1.446 bisitz 586: $body_args{'bgcolor'} = $bgcolor;
587: # $body_args{'no_title'} = 1;
588: $body_args{'force_register'} = 1;
589: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 590: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 591: $body_args{'only_body'} = 1;
1.518 raeburn 592: } elsif ($target eq 'web') {
593: $body_args{'print_suppress'} = 1;
1.446 bisitz 594: }
1.344 albertel 595: }
1.365 albertel 596: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 597: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
598: \%body_args);
1.446 bisitz 599: $page_start .= $pageheader;
1.462 raeburn 600: if (!defined($found{'body'})
601: && $env{'request.state'} ne 'construct'
602: && ($target eq 'web' || $target eq 'webgrade')) {
603:
604: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
605: if ($symb eq '' && !$publicuser) {
606: $page_start .= '<p class="LC_info">'
607: .&mt('Browsing resource, all submissions are temporary.')
608: .'</p>';
1.457 bisitz 609: }
1.344 albertel 610: }
611:
1.409 albertel 612: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 613: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 614: }
615: my $form_tag_start;
616: if (!defined($found{'form'})) {
1.337 albertel 617: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 618: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 619: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 620: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 621: $form_tag_start.=$uri.'" ';
622: if ($target eq 'edit') {
623: $form_tag_start.=&Apache::edit::form_change_detection();
624: }
1.493 raeburn 625: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
626: my ($path,$multiresp) =
627: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.574 ! raeburn 628: if ($env{'request.user_in_effect'}) {
! 629: $form_tag_start .= ' onsubmit="preventDefault();"';
! 630: } elsif (($is_task) || ($needs_upload)) {
1.495 raeburn 631: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 632: }
1.368 albertel 633: $form_tag_start.='>'."\n";
1.355 albertel 634:
635: if ($symb =~ /\S/) {
636: $symb=
637: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
638: $form_tag_start.=
1.368 albertel 639: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 640: }
1.159 albertel 641: }
1.528 raeburn 642: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 643: }
644:
1.141 matthew 645: #use Time::HiRes();
1.105 albertel 646: sub get_resource_name {
1.159 albertel 647: my ($parstack,$safeeval)=@_;
1.388 foxr 648: my $name;
1.204 albertel 649: if (defined($Apache::lonhomework::name)) {
1.388 foxr 650: $name = $Apache::lonhomework::name;
651: } else {
652: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 653: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 654: if ($name eq '') {
655: $name=&Apache::lonnet::EXT('resource.title');
656: if ($name eq 'con_lost') { $name = ''; }
657: }
658: if ($name!~/\S+/) {
659: $name=$env{'request.uri'};
660: $name=~s-.*/([^/]+)$-$1-;
661: }
662: # The name has had html tags escaped:
663:
664: $name=~s/</</gs;
665: $name=~s/>/>/gs;
666:
667: $Apache::lonhomework::name=$name;
1.204 albertel 668: }
1.159 albertel 669: return $name;
1.105 albertel 670: }
671:
672: sub setup_rndseed {
1.570 raeburn 673: my ($safeeval,$target,$probpartlist,$prevparttype)=@_;
1.367 albertel 674: my ($symb)=&Apache::lonnet::whichuser();
1.564 raeburn 675: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 676: if ($target eq 'analyze') {
677: $questiontype = $env{'form.grade_questiontype'};
678: }
679: unless (defined($questiontype)) {
680: $questiontype = $Apache::lonhomework::type;
681: }
1.564 raeburn 682: if ($Apache::lonhomework::type eq 'randomizetry') {
683: my $partfortries = $Apache::inputtags::part;
1.568 raeburn 684: #
685: # Where question type is "randomizetry" for a problem containing
686: # a single part (and unless type is explicitly set to not be
687: # "randomizetry" for that part), the number of tries used to
688: # determine randomization will be for that part, and randomization
689: # from calls to &random() in a perl script block before the part tag,
690: # will change based on the number of tries, and value of the
691: # "randomizeontries" parameter in effect for the single part.
692: #
1.564 raeburn 693: if (ref($probpartlist) eq 'ARRAY') {
1.568 raeburn 694: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
695: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.566 raeburn 696: $partfortries = $probpartlist->[0];
697: } else {
698: $partfortries = '';
699: }
1.564 raeburn 700: }
701: }
1.566 raeburn 702: if ($partfortries ne '') {
703: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
704: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
705: }
1.564 raeburn 706: }
1.555 raeburn 707: if (($env{'request.state'} eq "construct")
708: || ($symb eq '')
709: || ($Apache::lonhomework::type eq 'practice')
710: || ($Apache::lonhomework::history{'resource.CODE'})
711: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 712: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 713: ['rndseed']);
1.284 albertel 714: $rndseed=$env{'form.rndseed'};
1.159 albertel 715: if (!$rndseed) {
1.162 albertel 716: $rndseed=$Apache::lonhomework::history{'rndseed'};
717: if (!$rndseed) {
718: $rndseed=time;
719: }
1.555 raeburn 720: unless ($env{'form.code_for_randomlist'}) {
721: $env{'form.rndseed'}=$rndseed;
722: }
1.162 albertel 723: }
1.565 raeburn 724: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 725: ($Apache::lonhomework::type eq 'randomizetry')) {
1.564 raeburn 726: if ($numtries) {
727: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
728: my $inc = int($numtries/$reqtries);
729: $rndseed += $inc;
730: } else {
731: $rndseed += $numtries;
732: }
1.479 raeburn 733: }
1.480 raeburn 734: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 735: }
1.551 damieng 736: if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 737: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 738: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 739: srand(time);
740: $rndseed=int(rand(2100000000));
1.284 albertel 741: $env{'form.rndseed'}=$rndseed;
742: delete($env{'form.resetdata'});
743: delete($env{'form.newrandomization'});
1.159 albertel 744: }
1.488 www 745: $rndseed=~s/\,/\:/g;
746: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 747: if (defined($rndseed)) {
748: my ($c1,$c2)=split(/\:/,$rndseed);
749: unless ($c2) { $c2=0; }
750: unless (($c1==int($c1)) && ($c2==int($c2))) {
751: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
752: }
1.187 albertel 753: }
1.555 raeburn 754: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
755: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
756: $rndseed=&Apache::lonnet::rndseed();
757: undef($env{'form.CODE'});
758: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 759: $rndseed=&Apache::lonnet::rndseed();
760: }
1.479 raeburn 761: $set_safespace = 1;
762: } elsif ($questiontype eq 'randomizetry') {
763: if ($target eq 'analyze') {
764: if (defined($env{'form.grade_rndseed'})) {
765: $rndseed = $env{'form.grade_rndseed'};
766: }
767: }
768: unless (($target eq 'analyze') && (defined($rndseed))) {
769: $rndseed=&Apache::lonnet::rndseed();
1.564 raeburn 770: my $curr_try = $numtries;
1.479 raeburn 771: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
772: $curr_try ++;
773: }
774: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
775: $rndseed = $1;
776: }
777: if ($curr_try) {
778: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
779: my $inc = int(($curr_try-1)/$reqtries);
780: $rndseed += $inc;
781: } else {
782: $rndseed += $curr_try;
783: }
784: }
785: }
786: $set_safespace = 1;
1.528 raeburn 787: if ($target eq 'grade') {
788: $Apache::lonhomework::rawrndseed = $rndseed;
789: }
1.570 raeburn 790: } elsif ($prevparttype eq 'randomizetry') {
791: if ($env{'form.0.rndseed'} ne '') {
792: $set_safespace = 1;
793: $rndseed = $env{'form.0.rndseed'};
794: }
1.479 raeburn 795: }
796: if ($set_safespace) {
797: if ($safeeval) {
798: &Apache::lonxml::debug("Setting rndseed to $rndseed");
799: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.569 raeburn 800: if (($Apache::lonhomework::type eq 'randomizetry') || ($prevparttype eq 'randomizetry')) {
801: &Apache::lonxml::debug("Setting randomizetrypart to $Apache::inputtags::part");
802: &Apache::run::run('$external::randomizetrypart="'.$Apache::inputtags::part.'";',$safeeval);
803: }
1.479 raeburn 804: }
805: }
806: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
807: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 808: }
809: return $rndseed;
1.105 albertel 810: }
811:
1.268 albertel 812: sub remember_problem_state {
813: return '
1.284 albertel 814: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
815: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
816: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 817: }
818:
1.487 www 819: sub problem_edit_action_button {
820: my ($name,$action,$accesskey,$text,$flag)=@_;
821: my $actionscript="setmode(this.form,'$action')";
822: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
823: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
824: }
825:
1.423 www 826: sub problem_edit_buttons {
1.487 www 827: my ($mode)=@_;
1.535 droeschl 828: # Buttons that save
829: my $result = '<div style="float:right">';
830: if ($mode eq 'editxml') {
831: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
832: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
833: } else {
834: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
835: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
836: }
837: $result.="\n</div>\n";
1.487 www 838: # Buttons that do not save
1.535 droeschl 839: $result .= '<div>'.
1.487 www 840: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
841: if ($mode eq 'editxml') {
842: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
843: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 844: if ($env{'environment.nocodemirror'}) {
845: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
846: }
1.487 www 847: } else {
848: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
849: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
850: }
851: $result.="\n</div>";
852: return $result;
1.423 www 853: }
854:
855: sub problem_edit_header {
1.527 golterma 856: my ($mode)=@_;
857: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 858: &remember_problem_state('edit').'
1.527 golterma 859: <div class="LC_edit_problem_header">
860: <div class="LC_edit_problem_header_title">
861: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
862: </div><div class="LC_edit_actionbar" id="actionbar">'.
863: '<input type="hidden" name="problemmode" value="saveedit" />'.
864: &problem_edit_buttons();
865:
1.535 droeschl 866: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 867: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
868: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
869:
870: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
871: <script type="text/javascript">
872: // unless internet explorer
873: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
874: $(document).ready(
875: function() {
876: $(\'.LC_edit_actionbar\').scrollToFixed(
877: {
878: fixed: function(){
1.535 droeschl 879: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
880: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 881: }
882: }
883: );
884: }
885: );
886: }
887: </script>
888: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
889: return $return;
1.105 albertel 890: }
891:
892: sub problem_edit_footer {
1.527 golterma 893: my $resource = $env{'request.ambiguous'};
1.412 albertel 894: return '</td></tr></table><br />
895: <div class="LC_edit_problem_footer">
1.453 bisitz 896: <hr />'.
1.423 www 897: &problem_edit_buttons().'
1.459 bisitz 898: <hr style="clear:both;" />
1.527 golterma 899: <script type="text/javascript">
900: restoreState("'.$resource.'");
901: restoreScrollPosition("'.$resource.'");
902: </script>
1.412 albertel 903: </div>
904: '.
1.342 albertel 905: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 906: }
907:
1.235 albertel 908: sub option {
909: my ($value,$name) = @_;
910: my $result ="<option value='".$value."' ";
1.284 albertel 911: if ($env{'form.'.$name} eq $value) {
1.235 albertel 912: $result.=" selected='on' ";
913: }
914: $result.='>';
915: return $result;
916: }
917:
1.105 albertel 918: sub problem_web_to_edit_header {
1.159 albertel 919: my ($rndseed)=@_;
1.406 albertel 920: my $result .= '<div class="LC_edit_problem_header">';
921:
922: if (!$Apache::lonhomework::parsing_a_task) {
923: $result .=
924: '<div class="LC_edit_problem_header_title">'.
925: &mt('Problem Testing').
926: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
927: '</div>';
928: } else {
929: $result .=
930: '<div class="LC_edit_problem_header_title">'.
931: &mt('Task Testing').
932: '</div>';
933: }
934:
1.315 albertel 935: my $show_all_foils_text =
936: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 937: &mt('Show All Instances')
938: : &mt('Show All Foils');
1.315 albertel 939:
1.452 bisitz 940: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
941: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 942: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 943: $show_all.= ' /> '.$show_all_foils_text
944: .'</label></span>';
1.406 albertel 945:
946:
1.384 albertel 947:
1.406 albertel 948: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 949: if (!$Apache::lonhomework::parsing_a_task) {
950: $result.="
1.406 albertel 951: <div class='LC_edit_problem_header_row1'>
952: <span class=\"LC_nobreak\">
1.405 albertel 953: ".&mt("Problem Status:")."
1.235 albertel 954: <select name='problemstate'>
1.270 albertel 955: <option value=''></option>
1.235 albertel 956: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
957: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
958: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
959: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
960: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
961: </select>
1.406 albertel 962: </span>
963: <span class=\"LC_nobreak\">
1.405 albertel 964: ".&mt("Problem Type:")."
1.235 albertel 965: <select name='problemtype'>
1.270 albertel 966: <option value=''></option>
1.509 bisitz 967: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 968: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 969: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 970: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
971: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
972: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 973: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 974: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 975: </select>
1.406 albertel 976: </span>
977: $show_all
978: </div>
979: <div class='LC_edit_problem_header_row2'>
980: <span class=\"LC_nobreak\">
1.405 albertel 981: ".&mt("Feedback Mode:")."
1.235 albertel 982: <select name='problemstatus'>
983: <option value=''></option>
1.242 albertel 984: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 985: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 986: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 987: </select>
1.406 albertel 988: </span>
989: ";
990:
1.376 albertel 991: } elsif ($Apache::lonhomework::parsing_a_task) {
992: $result.="
1.406 albertel 993: <div class='LC_edit_problem_header_row1'>
994: <span class=\"LC_nobreak\">
1.405 albertel 995: ".&mt("Problem Status:")."
1.376 albertel 996: <select name='problemstate'>
997: <option value=''></option>
998: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
999: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
1000: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
1001: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
1002: </select>
1.406 albertel 1003: </span>
1004: $show_all
1005: ";
1006: }
1007: $result.='
1008: <span class="LC_nobreak">
1009: '.&mt('Apply style file: ').'
1010: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
1011: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1012: </span>
1.422 www 1013: </div>
1014: <div class="LC_edit_problem_header_row1">'.
1015: &Apache::lonxml::renderingoptions().'
1.406 albertel 1016: </div>
1017: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1018: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 1019: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
1020: '.&mt('Reset Submissions').'</button>
1.406 albertel 1021: </div>
1.453 bisitz 1022: <hr />
1.406 albertel 1023: <div class="LC_edit_problem_header_randomize_row">
1024: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1025: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1026: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1027: $rndseed.'"
1028: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1029:
1030: if (!$Apache::lonhomework::parsing_a_task) {
1031: my $numtoanalyze=$env{'form.numtoanalyze'};
1032: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1033: $result .= '<span class="LC_nobreak">'.
1034: &mt('[_1] for [_2] versions.',
1.416 raeburn 1035: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1036: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1037: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1038: $numtoanalyze.'" size="5" />').
1039: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1040: '</span>';
1041:
1.313 albertel 1042: }
1.406 albertel 1043:
1044: $result.='
1045: </div>
1.453 bisitz 1046: <hr />
1.447 bisitz 1047: <div>';
1.416 raeburn 1048: $result.='<input type="hidden" name="problemmode" value="view" />';
1049: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1050: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1051: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1052: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1053: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1054: my $uri = $env{'request.uri'};
1.543 damieng 1055: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1056: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1057: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1058: }
1.408 albertel 1059: $result.='
1060: </div>
1.453 bisitz 1061: <hr />
1.409 albertel 1062: '.&Apache::lonxml::message_location().'
1.406 albertel 1063: </div>';
1.159 albertel 1064: return $result;
1.48 albertel 1065: }
1066:
1.65 albertel 1067: sub initialize_storage {
1.357 albertel 1068: my ($given_symb) = @_;
1.353 albertel 1069: undef(%Apache::lonhomework::results);
1070: undef(%Apache::lonhomework::history);
1.357 albertel 1071: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1072: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1073:
1074: # anonymous users (CODEd exams) have no data
1075: if ($name eq 'anonymous'
1076: && !defined($domain)) {
1077: return;
1078: }
1079:
1.333 albertel 1080: if ($env{'request.state'} eq 'construct'
1081: || $symb eq ''
1082: || $Apache::lonhomework::type eq 'practice') {
1083:
1084: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1085: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1086: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1087: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1088: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1089: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1090: &Apache::lonxml::debug("Attempt reset");
1091: }
1.159 albertel 1092: %Apache::lonhomework::history=
1.333 albertel 1093: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1094: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1095: &Apache::lonxml::debug("Return message of $temp");
1096: } else {
1097: %Apache::lonhomework::history=
1098: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1099: }
1.353 albertel 1100:
1.159 albertel 1101: #ignore error conditions
1.526 raeburn 1102: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1103: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1104: }
1105:
1.435 jms 1106: =pod
1107:
1108: =item finalize_storage()
1109:
1.524 raeburn 1110: Stores away the result hash to a student's environment;
1.523 raeburn 1111: checks form.grade_ for specific values, otherwise stores
1112: to the running user's environment.
1.524 raeburn 1113:
1114: &check_correctness_changes() is called in two circumstances
1115: in which the results hash is to be stored permanently, for
1116: grading triggered by a student's submission, where feedback on
1117: correctness is to be provided to the student.
1118:
1119: 1. Immediately prior to storing the results hash
1120:
1121: To handle the case where a student's submission (and award) were
1122: stored after history was retrieved in &initialize_storage(), e.g.,
1123: if a student submitted answers in quick succession (e.g., from
1124: multiple tabs). &Apache::inputtags::hidealldata() is called for
1125: any parts with out-of-order storage (i.e., correct then incorrect,
1126: where awarded >= 1 when correct).
1127:
1128: 2. Immediately after storing the results hash
1129:
1130: To handle the case where lond on the student's homeserver returns
1131: delay:N -- where N is the number of transactions between the last
1132: retrieved in &initialize_storage() and the last stored immediately
1133: before permanent storage of the current transaction via
1134: lond::store_handler(). &Apache::grades::makehidden() is called
1135: for any parts with out-of-order storage (i.e., correct then incorrect,
1136: where awarded >= 1 when correct).
1137:
1138: Will call &store_aggregates() to increment totals for attempts,
1139: students, and corrects, if running user has student role.
1140:
1.435 jms 1141: =cut
1142:
1143:
1.65 albertel 1144: sub finalize_storage {
1.357 albertel 1145: my ($given_symb) = @_;
1.159 albertel 1146: my $result;
1.289 albertel 1147: if (%Apache::lonhomework::results) {
1.323 albertel 1148: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1149: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1150: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1151: &Apache::lonnet::whichuser($given_symb);
1.562 raeburn 1152: my ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref,$total,$possible,$dopassback);
1.333 albertel 1153: if ($env{'request.state'} eq 'construct'
1154: || $symb eq ''
1155: || $Apache::lonhomework::type eq 'practice') {
1156: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1157: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1158: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1159: $namespace,'',$domain,$name);
1.159 albertel 1160: &Apache::lonxml::debug('Construct Store return message:'.$result);
1161: } else {
1.560 raeburn 1162: my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.524 raeburn 1163: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1164: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1165: (!defined($env{'form.grade_courseid'}))) {
1.560 raeburn 1166: if ($env{'request.lti.login'}) {
1167: my ($map)=&Apache::lonnet::decode_symb($symb);
1168: $map = &Apache::lonnet::clutter($map);
1169: ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref) =
1170: &needs_lti_passback($courseid,$symb,$map);
1171: }
1.524 raeburn 1172: if ($Apache::lonhomework::history{'version'}) {
1173: $laststore = $Apache::lonhomework::history{'version'}.'='.
1174: $Apache::lonhomework::history{'timestamp'};
1175: } else {
1176: $laststore = '0=0';
1177: }
1.560 raeburn 1178: %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.524 raeburn 1179: if ($record{'version'}) {
1180: my ($newversion,$oldversion,$oldtimestamp);
1181: if ($Apache::lonhomework::history{'version'}) {
1182: $oldversion = $Apache::lonhomework::history{'version'};
1183: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1184: } else {
1185: $oldversion = 0;
1186: $oldtimestamp = 0;
1187: }
1188: if ($record{'version'} > $oldversion) {
1189: if ($record{'timestamp'} >= $oldtimestamp) {
1190: $laststore = $record{'version'}.'='.$record{'timestamp'};
1191: $newversion = $record{'version'} + 1;
1192: $checkedparts = 1;
1193: foreach my $key (keys(%Apache::lonhomework::results)) {
1194: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1195: my $part = $1;
1196: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1197: push(@parts,$part);
1198: }
1199: }
1200: }
1201: if (@parts) {
1202: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1203: \%record,\@parts,$newversion,
1204: $oldversion);
1205: if (@parts_to_hide) {
1206: foreach my $part (@parts_to_hide) {
1207: $postcorrect{$part} = 1;
1208: &Apache::inputtags::hidealldata($part);
1209: }
1210: }
1211: }
1212: }
1213: }
1214: }
1215: }
1.159 albertel 1216: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1217: $symb,$courseid,$domain,$name,$laststore);
1218: if ($result =~ /^delay\:(\d+)$/) {
1219: my $numtrans = $1;
1220: my ($oldversion) = split(/=/,$laststore);
1221: if ($numtrans) {
1222: my $newversion = $oldversion + 1 + $numtrans;
1223: my @possparts;
1224: if ($checkedparts) {
1225: foreach my $part (@parts) {
1226: unless ($postcorrect{$part}) {
1227: push(@possparts,$part);
1228: }
1229: }
1230: } else {
1231: foreach my $key (keys(%Apache::lonhomework::results)) {
1232: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1233: my $part = $1;
1234: unless ($postcorrect{$part}) {
1235: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1236: push(@possparts,$part);
1237: }
1238: }
1239: }
1240: }
1241: }
1242: if (@possparts) {
1243: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1244: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1245: \%newrecord,\@possparts,$newversion,
1246: $oldversion);
1247: if (@parts_to_hide) {
1248: my $partslist = join(',',@parts_to_hide);
1249: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1250: }
1251: }
1252: }
1253: }
1.562 raeburn 1254: if ($passback) {
1255: foreach my $key (keys(%Apache::lonhomework::results)) {
1256: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1257: my $part = $1;
1258: if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1259: ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1260: ($Apache::lonhomework::results{"resource.$part.tries"})) {
1261: $dopassback = 1;
1262: last;
1263: }
1264: }
1265: }
1266: }
1267: if (($dopassback) && ($ltiscope eq 'resource') && ($ltisymb eq $symb)) {
1.560 raeburn 1268: $total = 0;
1269: $possible = 0;
1270: my $navmap = Apache::lonnavmaps::navmap->new();
1271: if (ref($navmap)) {
1272: my $res = $navmap->getBySymb($symb);
1273: if (ref($res)) {
1274: my $partlist = $res->parts();
1275: if (ref($partlist) eq 'ARRAY') {
1276: foreach my $part (@{$partlist}) {
1277: unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1278: next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1279: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1280: $possible += $weight;
1281: if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1282: my $awarded = $record{"resource.$part.awarded"};
1283: if ($awarded) {
1284: $total += $weight * $awarded;
1285: }
1286: }
1287: }
1288: }
1289: }
1290: }
1291: }
1292: foreach my $key (keys(%Apache::lonhomework::results)) {
1293: if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1294: my $part = $1;
1295: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1296: $possible += $weight;
1297: my $awarded = $Apache::lonhomework::results{$key};
1298: if ($awarded) {
1299: $total += $weight * $awarded;
1300: }
1301: }
1302: }
1303: }
1.159 albertel 1304: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1305: &store_aggregates($symb,$courseid);
1.562 raeburn 1306: if ($dopassback) {
1.560 raeburn 1307: my $scoreformat = 'decimal';
1308: if (ref($ltiref) eq 'HASH') {
1309: if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1310: $scoreformat = $1;
1311: }
1312: }
1313: my $ltigrade = {
1314: 'lti' => $ltiref,
1315: 'cid' => $courseid,
1316: 'uname' => $env{'user.name'},
1317: 'udom' => $env{'user.domain'},
1318: 'pbid' => $env{'request.lti.passbackid'},
1319: 'pburl' => $env{'request.lti.passbackurl'},
1320: 'scope' => $ltiscope,
1321: 'ltimap' => $ltimap,
1322: 'ltisymb' => $ltisymb,
1323: 'format' => $scoreformat,
1324: };
1325: if ($ltiscope eq 'resource') {
1326: $ltigrade->{'total'} = $total;
1327: $ltigrade->{'possible'} = $possible;
1328: }
1329: push(@Apache::lonhomework::ltipassback,$ltigrade);
1330: }
1.159 albertel 1331: }
1.323 albertel 1332: } else {
1333: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1334: }
1.159 albertel 1335: return $result;
1.65 albertel 1336: }
1337:
1.560 raeburn 1338: sub needs_lti_passback {
1339: my ($courseid,$symb,$map) = @_;
1340: if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1341: if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1342: my ($cdom,$cnum) = ($1,$2);
1343: my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1344: if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1345: if ($lti{$env{'request.lti.login'}}{'passback'}) {
1346: my ($ltiscope,$ltiuri,$ltisymb) =
1347: &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1348: $cdom,$cnum,1);
1349: my ($passback,$ltimap);
1350: if ($ltiscope eq 'resource') {
1351: if ($ltisymb eq $symb) {
1352: $passback = 1;
1353: }
1354: } elsif ($ltiscope eq 'map') {
1355: if ($ltiuri eq $map) {
1356: $passback = 1;
1357: $ltimap = $map;
1358: }
1359: } elsif ($ltiscope eq 'course') {
1360: if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1361: $passback = 1;
1362: }
1363: }
1364: return ($passback,$ltiscope,$ltimap,$ltisymb,$lti{$env{'request.lti.login'}});
1365: }
1366: }
1367: }
1368: }
1369: return;
1370: }
1371:
1.435 jms 1372: =pod
1373:
1.524 raeburn 1374: =item check_correctness_changes()
1375:
1376: For all parts for which current results contain a solved status
1377: of "incorrect_attempted", check if there was a transaction in which
1378: solved was set to "correct_by_student" in the time since the last
1379: transaction (retrieved when &initialize_storage() was called i.e.,
1380: when &start_problem() was called), unless:
1381: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1382: (b) problemstatus is set to no or no_feedback_ever
1383: If such a transaction exists, and did not occur after "reset status"
1384: by a user with grading privileges, then the current transaction is an
1385: example of an out-of-order transaction (i.e., incorrect occurring after
1386: correct). Accordingly, the current transaction should be hidden.
1387:
1388: =cut
1389:
1390:
1391: sub check_correctness_changes {
1392: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1393: my @parts_to_hide;
1394: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1395: return @parts_to_hide;
1396: }
1397: if (@{$parts}) {
1398: my $usec;
1399: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1400: ($env{'request.course.id'} eq $courseid)) {
1401: $usec = $env{'request.course.sec'};
1402: } else {
1403: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1404: }
1405: foreach my $id (@{$parts}) {
1406: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1407: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1408: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1409: my $reset;
1410: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1411: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1412: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1413: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1414: $reset = 1;
1415: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1416: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1417: unless ($reset) {
1418: push(@parts_to_hide,$id);
1419: last;
1420: }
1421: }
1422: }
1423: }
1424: }
1425: return @parts_to_hide;
1426: }
1427:
1428: =pod
1429:
1.435 jms 1430: item store_aggregates()
1431:
1432: Sends hash of values to be incremented in nohist_resourcetracker.db
1433: for the course. Increments total number of attempts, unique students
1434: and corrects for each part for an instance of a problem, as appropriate.
1435:
1436: =cut
1437:
1.285 raeburn 1438: sub store_aggregates {
1439: my ($symb,$courseid) = @_;
1.479 raeburn 1440: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1441: my @parts;
1.288 albertel 1442: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1443: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1444: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1445: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1446: push(@parts, $1);
1.285 raeburn 1447: }
1448: }
1.286 albertel 1449: foreach my $part (@parts) {
1.470 raeburn 1450: if ($env{'request.role'} =~/^st/) {
1451: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1452: eq 'APPROX_ANS' ||
1453: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1454: eq 'EXACT_ANS') {
1455: $aggregate{$symb."\0".$part."\0correct"} = 1;
1456: }
1457: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1458: $aggregate{$symb."\0".$part."\0users"} = 1;
1459: } else {
1460: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1461: if ($last_reset) {
1462: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1463: $aggregate{$symb."\0".$part."\0users"} = 1;
1464: }
1465: }
1466: }
1467: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1468: }
1.470 raeburn 1469: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1470: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1471: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1472: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1473: $randtrycounter{$symb."\0".$part} = 1;
1474: } else {
1475: $anoncounter{$symb."\0".$part} = 1;
1476: }
1.545 raeburn 1477: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1478: if ($needsrelease) {
1.470 raeburn 1479: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1480: if ($curr_required eq '') {
1.471 raeburn 1481: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1482: } else {
1483: my ($currmajor,$currminor) = split(/\./,$curr_required);
1484: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1485: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1486: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1487: }
1.292 raeburn 1488: }
1489: }
1.285 raeburn 1490: }
1491: }
1.526 raeburn 1492: if (keys(%aggregate) > 0) {
1.289 albertel 1493: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1494: $cdomain,$cname);
1495: }
1.472 raeburn 1496: if (keys(%anoncounter) > 0) {
1.481 raeburn 1497: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1498: $cdomain,$cname);
1.472 raeburn 1499: }
1.479 raeburn 1500: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1501: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1502: $cdomain,$cname);
1.479 raeburn 1503: }
1.292 raeburn 1504: }
1.289 albertel 1505:
1.557 raeburn 1506: sub access_status_msg {
1507: my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1508: my $msg;
1509: if ($target eq 'web') {
1510: if ($status eq 'UNAVAILABLE') {
1511: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1512: } elsif ($status eq 'NOT_IN_A_SLOT') {
1513: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1514: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1515: ($status eq 'NOTRESERVABLE')) {
1516: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1517: } elsif ($status ne 'NOT_YET_VIEWED') {
1518: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1519: }
1520: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1521: $msg.=&mt('The problem ').$accessmsg;
1522: } elsif ($status eq 'UNCHECKEDOUT') {
1523: $msg.=&checkout_msg();
1524: } elsif ($status eq 'NOT_YET_VIEWED') {
1525: $msg.=&firstaccess_msg($accessmsg,$symb);
1526: } elsif ($status eq 'NOT_IN_A_SLOT') {
1527: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1528: } elsif ($status eq 'RESERVABLE') {
1529: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1530: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1531: '<br />'.
1532: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1533: } elsif ($status eq 'RESERVABLE_LATER') {
1534: $msg.=&mt('Window to make a reservation will open [_1].',
1535: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1536: } elsif ($status eq 'NOTRESERVABLE') {
1537: $msg.=&mt('Not available to make a reservation.');
1538: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1539: if ($ipused) {
1540: $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");
1541: } else {
1542: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1543: &mt('Somebody else has already used this particular computer for that purpose.');
1544: }
1545: }
1546: $msg.='<br />';
1547: } elsif ($target eq 'tex') {
1548: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1549: : '\begin{minipage}{\textwidth}';
1550:
1551: $msg ='\noindent \vskip 1 mm '.
1552: $startminipage.'\vskip 0 mm';
1553: if ($status eq 'UNAVAILABLE') {
1554: $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1555: } else {
1556: $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1557: }
1558: }
1559: return $msg;
1560: }
1561:
1562: sub checkin_prompt {
1563: my ($target,$slot_name,$slot,$type) = @_;
1564: my $result;
1565: if ($target eq 'web') {
1566: $result = &Apache::bridgetask::proctor_validation_screen($slot);
1567: } elsif ($target eq 'grade') {
1568: if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1569: $result = &mt('An error occurred during check-in');
1570: }
1571: }
1572: return $result;
1573: }
1574:
1575: sub selfcheckin_resource {
1576: my ($resource_due,$slot_name,$slot,$symb) = @_;
1577: if ($slot_name ne '') {
1578: my $checked_in =
1579: $Apache::lonhomework::history{'resource.0.checkedin'};
1580: if ($checked_in eq '') {
1581: # unproctored slot access, self checkin
1582: my $needsiptied;
1583: if (ref($slot)) {
1584: $needsiptied = $slot->{'iptied'};
1585: }
1586: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1587: $slot_name,$needsiptied);
1588: if ($check =~ /^error: /) {
1589: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1590: } else {
1591: $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1592: }
1593: }
1594: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1595: if ($slot->{'starttime'} < time()) {
1596: if (!$resource_due) {
1597: $resource_due = $slot->{'endtime'};
1598: } elsif ($slot->{'endtime'} < $resource_due) {
1599: $resource_due = $slot->{'endtime'};
1600: }
1601: }
1602: }
1603: }
1604: return $resource_due;
1605: }
1606:
1.65 albertel 1607: sub checkout_msg {
1.211 albertel 1608: my %lt=&Apache::lonlocal::texthash(
1609: 'resource'=>'The resource needs to be checked out',
1610: '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.',
1611: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1612: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1613: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1614: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1615: return (<<ENDCHECKOUT);
1.211 albertel 1616: <h2>$lt{'resource'}</h2>
1617: <p>$lt{'id_expln'}</p>
1.449 bisitz 1618: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1619: <form name="checkout" method="post" action="$uri">
1.91 albertel 1620: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1621: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1622: </form>
1623: ENDCHECKOUT
1624: }
1625:
1.252 albertel 1626: sub firstaccess_msg {
1.253 albertel 1627: my ($time,$symb)=@_;
1.414 albertel 1628: my $result;
1629: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1630: if ($interval[1] eq 'map') {
1631: my ($map)=&Apache::lonnet::decode_symb($symb);
1632: my $foldertitle=&Apache::lonnet::gettitle($map);
1633:
1634: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1635: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1636: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1637: ,$foldertitle,$time)."</p>";
1.414 albertel 1638: } elsif ($interval[1] eq 'course') {
1639: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1640: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1641: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1642: ,$course,$time)."</p>";
1.414 albertel 1643: } else {
1644: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1645: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1646: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1647: ,$title,$time)."</p>";
1.414 albertel 1648: }
1.352 albertel 1649: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1650: my $buttontext = &mt('Show Resource');
1651: my $timertext = &mt('Start Timer?');
1.571 raeburn 1652: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1653: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1654: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1655: <input type="hidden" name="markaccess" value="yes" />
1.571 raeburn 1656: <input type="hidden" name="symb" value="$shownsymb" />
1.514 bisitz 1657: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1658: </form>
1659: ENDCHECKOUT
1.414 albertel 1660: return $result;
1.252 albertel 1661: }
1662:
1.204 albertel 1663: sub init_problem_globals {
1664: my ($type)=@_;
1665: #initialize globals
1.308 foxr 1666: # For problems, we start out in part 0 (outside a <part> tag).
1667: # and part 0 is used to describe the main body of the <problem>
1668: #
1.204 albertel 1669: if ($type eq 'problem') {
1670: $Apache::inputtags::part='0';
1671: @Apache::inputtags::partlist=('0');
1.405 albertel 1672: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1673: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1674:
1.266 albertel 1675: } elsif ($type eq 'library') {
1.204 albertel 1676: $Apache::inputtags::part='';
1677: @Apache::inputtags::partlist=();
1.405 albertel 1678: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1679: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1680:
1.304 albertel 1681: } elsif ($type eq 'Task') {
1682: $Apache::inputtags::part='0';
1683: @Apache::inputtags::partlist=('0');
1.405 albertel 1684: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1685: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1686: }
1.477 www 1687: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1688: @Apache::inputtags::responselist = ();
1689: @Apache::inputtags::importlist = ();
1690: @Apache::inputtags::previous=();
1691: @Apache::inputtags::previous_version=();
1.536 raeburn 1692: $Apache::inputtags::leniency='';
1.204 albertel 1693: $Apache::structuretags::printanswer='No';
1694: @Apache::structuretags::whileconds=();
1695: @Apache::structuretags::whilebody=();
1696: @Apache::structuretags::whileline=();
1697: $Apache::lonhomework::scantronmode=0;
1.566 raeburn 1698: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1699: undef($Apache::lonhomework::name);
1.358 albertel 1700: undef($Apache::lonhomework::default_type);
1701: undef($Apache::lonhomework::type);
1.204 albertel 1702: }
1703:
1704: sub reset_problem_globals {
1705: my ($type)=@_;
1706: undef(%Apache::lonhomework::history);
1707: undef(%Apache::lonhomework::results);
1708: undef($Apache::inputtags::part);
1.536 raeburn 1709: undef($Apache::inputtags::leniency);
1.498 raeburn 1710: if ($type eq 'Task') {
1711: undef($Apache::inputtags::slot_name);
1.528 raeburn 1712: } elsif ($type eq 'problem') {
1713: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1714: }
1.208 albertel 1715: #don't undef this, lonhomework.pm takes care of this, we use this to
1716: #detect if we try to do 2 problems in one file
1717: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1718: undef($Apache::lonhomework::name);
1.358 albertel 1719: undef($Apache::lonhomework::default_type);
1720: undef($Apache::lonhomework::type);
1721: undef($Apache::lonhomework::scantronmode);
1.566 raeburn 1722: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1723: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1724: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1725: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1726: }
1727:
1.241 albertel 1728: sub set_problem_state {
1.240 albertel 1729: my ($part)=@_;
1.284 albertel 1730: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1731: $Apache::lonhomework::history{"resource.$part.solved"}=
1732: 'correct_by_student';
1733: }
1734: }
1735:
1.241 albertel 1736: sub get_problem_status {
1737: my ($part)=@_;
1.267 albertel 1738: my $problem_status;
1.284 albertel 1739: if ($env{'request.state'} eq 'construct' &&
1740: defined($env{'form.problemstatus'})) {
1741: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1742: } else {
1743: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1744: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1745: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1746: }
1747: return $problem_status;
1748: }
1749:
1.9 albertel 1750: sub start_problem {
1.326 albertel 1751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1752:
1.311 foxr 1753: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1754: if (!$Apache::lonxml::metamode) {
1755: &Apache::lonxml::startredirection();
1756: }
1.311 foxr 1757:
1.308 foxr 1758: # Problems don't nest and we don't allow more than one <problem> in
1759: # a .problem file.
1760: #
1.184 albertel 1761: if ( $Apache::inputtags::part ne '' ||
1762: $Apache::lonhomework::parsing_a_problem) {
1763: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1764: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1765: return '';
1766: }
1.184 albertel 1767:
1768: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1769: &init_problem_globals('problem');
1.166 albertel 1770:
1.284 albertel 1771: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1772: $Apache::lonhomework::scantronmode=1;
1773: }
1.161 albertel 1774:
1.159 albertel 1775: if ($target ne 'analyze') {
1.415 raeburn 1776: my $type = &Apache::lonnet::EXT('resource.0.type');
1777: $Apache::lonhomework::type=$type;
1.284 albertel 1778: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1779: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1780: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1781: }
1.332 albertel 1782: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1783: }
1.164 albertel 1784: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1785: my $uri=$env{'request.uri'};
1.159 albertel 1786: if ($uri=~/\.(\w+)$/) {
1787: $Apache::lonhomework::type=$1;
1788: &Apache::lonxml::debug("Using type of $1");
1789: } else {
1790: $Apache::lonhomework::type='problem';
1791: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1792: }
1.87 albertel 1793: }
1.301 albertel 1794: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1795:
1.363 albertel 1796: &initialize_storage();
1.389 albertel 1797: if ($target ne 'analyze'
1798: && $env{'request.state'} eq 'construct') {
1799: &set_problem_state('0');
1800: }
1801:
1.366 albertel 1802: if ($target eq 'web') {
1803: &Apache::lonxml::debug(" grading history ");
1804: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1805: }
1.363 albertel 1806:
1.159 albertel 1807: #added vars to the scripting enviroment
1.213 albertel 1808: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1809: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1810: &Apache::run::run($expression,$safeeval);
1.159 albertel 1811: my $status;
1812: my $accessmsg;
1.508 raeburn 1813: my $resource_due;
1.540 raeburn 1814: my $ipused;
1.159 albertel 1815:
1.343 albertel 1816: my $name= &get_resource_name($parstack,$safeeval);
1.561 raeburn 1817: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1818:
1819: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1820: $target eq 'tex') {
1821: if ($env{'form.markaccess'}) {
1822: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1823: my ($timelimit) = split(/_/,$interval[0]);
1.561 raeburn 1824: my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1825: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1826: $firstaccres = $is_set;
1827: }
1.506 raeburn 1828: }
1829: }
1830:
1.354 albertel 1831: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1832: || $target eq 'edit') {
1.528 raeburn 1833: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1834: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1835: $name);
1.552 raeburn 1836: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1837: ($target eq 'answer')) {
1.528 raeburn 1838: my ($symb)= &Apache::lonnet::whichuser();
1.568 raeburn 1839: if ($symb ne '') {
1840: my $navmap = Apache::lonnavmaps::navmap->new();
1841: if (ref($navmap)) {
1842: my $res = $navmap->getBySymb($symb);
1843: if (ref($res)) {
1844: $probpartlist = $res->parts();
1845: }
1.528 raeburn 1846: }
1847: }
1.350 albertel 1848: }
1849:
1.574 ! raeburn 1850: if (($target eq 'web') && ($env{'request.user_in_effect'})) {
! 1851: &Apache::lonxml::get_all_text("/problem",$parser,$style);
! 1852: return $result;
! 1853: }
! 1854:
1.552 raeburn 1855: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1856: $target eq 'tex') {
1857:
1858: my ($symb)= &Apache::lonnet::whichuser();
1859: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1860: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1861: push (@Apache::inputtags::status,$status);
1862: }
1863:
1.284 albertel 1864: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1865:
1.479 raeburn 1866: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1867: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1868: $target eq 'tex') {
1.479 raeburn 1869:
1.568 raeburn 1870: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1871: #handle rand seed in construction space
1.568 raeburn 1872: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1873: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1874: if ($partorder ne '') {
1875: @{$probpartlist} = split(/,/,$partorder);
1876: }
1877: }
1.528 raeburn 1878: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1879: if (($target eq 'grade') && &Apache::response::submitted()) {
1880: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1881: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1882: } else {
1883: my @parts;
1884: if (ref($probpartlist) eq 'ARRAY') {
1885: @parts = @{$probpartlist};
1886: }
1887: unless (@parts) {
1.529 raeburn 1888: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1889: }
1890: }
1891: }
1.479 raeburn 1892:
1.333 albertel 1893: if ($env{'request.state'} ne "construct" &&
1894: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.565 raeburn 1895: my $rndseedval = $rndseed;
1896: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1897: $rndseedval = $env{'form.rndseed'};
1898: }
1.162 albertel 1899: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.565 raeburn 1900: $rndseedval.'" />'.
1.551 damieng 1901: '<button type="submit" name="resetdata"
1902: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1903: if (exists($env{'form.username'})) {
1904: $form_tag_start.=
1.164 albertel 1905: '<input type="hidden" name="username"
1.284 albertel 1906: value="'.$env{'form.username'}.'" />';
1.334 albertel 1907: }
1.462 raeburn 1908: if ($env{'request.role.adv'}) {
1909: $form_tag_start.= ' <label class="LC_nobreak">'
1910: .'<input type="checkbox" name="showallfoils"';
1911: if (defined($env{'form.showallfoils'})) {
1912: $form_tag_start.=' checked="checked"';
1913: }
1914: $form_tag_start.= ' /> '
1915: .&mt('Show All Foils')
1916: .'</label>';
1917: }
1.417 www 1918: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1919: $form_tag_start.=&practice_problem_header();
1.417 www 1920: }
1.462 raeburn 1921: $form_tag_start.='<hr />';
1.570 raeburn 1922: }
1.565 raeburn 1923: if (($env{'request.state'} ne "construct") &&
1924: ($Apache::lonhomework::type eq 'randomizetry') &&
1925: ($status eq 'CAN_ANSWER') &&
1926: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1927: (!$env{'request.role.adv'})) {
1.549 raeburn 1928: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.566 raeburn 1929: my @parts;
1930: if (ref($probpartlist) eq 'ARRAY') {
1931: @parts = @{$probpartlist};
1932: }
1933: unless (@parts) {
1934: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1935: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1936: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1937: }
1.479 raeburn 1938: }
1.324 albertel 1939:
1.159 albertel 1940: my $expression='$external::datestatus="'.$status.'";';
1941: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1942: &Apache::run::run($expression,$safeeval);
1943: &Apache::lonxml::debug("Got $status");
1.324 albertel 1944:
1.159 albertel 1945: if (( $status eq 'CLOSED' ) ||
1946: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1947: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1948: ( $status eq 'BANNED') ||
1.216 albertel 1949: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1950: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1951: ( $status eq 'NOTRESERVABLE') ||
1952: ( $status eq 'RESERVABLE') ||
1953: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1954: ( $status eq 'INVALID_ACCESS') ||
1955: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1956: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1957: $style);
1.561 raeburn 1958: if (($status eq 'NOT_YET_VIEWED') && ($firstaccres)) {
1959: $result .= '<p class="LC_error">'.
1960: &mt('A problem occurred when trying to start the timer.').'</p>';
1961: }
1.557 raeburn 1962: $result .= &access_status_msg('problem',$status,$symb,$target,$ipused,$accessmsg);
1.324 albertel 1963: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1964: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1965: $style);
1.557 raeburn 1966: $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 1967: } elsif ($target eq 'web') {
1.508 raeburn 1968: if ($status eq 'CAN_ANSWER') {
1969: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1970: if ($slot_name ne '') {
1.557 raeburn 1971: $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
1972: $env{'request.symb'});
1.508 raeburn 1973: }
1974: if ($resource_due) {
1975: my $time_left = $resource_due - time();
1976: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1977: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1978: }
1979: }
1980: }
1.368 albertel 1981: $result.="\n $form_tag_start \t".
1.227 albertel 1982: '<input type="hidden" name="submitted" value="yes" />';
1983: # create a page header and exit
1.284 albertel 1984: if ($env{'request.state'} eq "construct") {
1.544 damieng 1985: if ($env{'form.inhibitmenu'} eq 'yes') {
1986: # error messages can be useful in any case
1987: $result.= &Apache::lonxml::message_location();
1988: } else {
1.542 raeburn 1989: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1990: }
1.428 raeburn 1991: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1992: $result.= '<button type="submit" name="resetdata" '.
1993: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1994: &practice_problem_header().'<hr />';
1.564 raeburn 1995: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1996: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1997: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1998: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1999: }
1.227 albertel 2000: }
2001: # if we are viewing someone else preserve that info
1.284 albertel 2002: if (defined $env{'form.grade_symb'}) {
1.227 albertel 2003: foreach my $field ('symb','courseid','domain','username') {
2004: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 2005: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 2006: }
1.479 raeburn 2007: foreach my $field ('trial','questiontype') {
2008: if ($env{"form.grade_$field"} ne '') {
2009: $result .= '<input type="hidden" name="grade_'.$field.
2010: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
2011: }
2012: }
1.159 albertel 2013: }
1.490 raeburn 2014: if ($env{'form.grade_imsexport'}) {
2015: $result = '';
2016: }
1.159 albertel 2017: } elsif ($target eq 'tex') {
1.319 foxr 2018: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2019: $result .= &select_metadata_hyphenation();
1.99 sakharuk 2020: }
1.159 albertel 2021: } elsif ($target eq 'edit') {
1.343 albertel 2022: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2023: $Apache::lonxml::warnings_error_header=
2024: &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 2025: my $temp=&Apache::edit::insertlist($target,$token);
2026: $result.=$temp;
2027: } elsif ($target eq 'modified') {
2028: $result=$token->[4];
2029: } else {
2030: # page_start returned a starting result, delete it if we don't need it
2031: $result = '';
1.99 sakharuk 2032: }
1.159 albertel 2033: return $result;
1.9 albertel 2034: }
2035:
2036: sub end_problem {
1.159 albertel 2037: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2038: my $result;
1.310 foxr 2039:
1.321 albertel 2040: if (!$Apache::lonxml::metamode) {
2041: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2042: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2043: }
1.319 foxr 2044:
2045: if ($target eq 'tex') {
1.321 albertel 2046: # Figure out the front matter and replace the
2047: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2048: # this in end_problem because whether or not we display due
2049: # dates depends on whether due dates have already been
2050: # displayed in the problem parts.
2051:
1.319 foxr 2052: my $frontmatter = '';
2053: my $startminipage = '';
2054: if (not $env{'form.problem_split'}=~/yes/) {
2055: $startminipage = '\begin{minipage}{\textwidth}';
2056: }
2057: my $id = $Apache::inputtags::part;
2058: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2059: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2060: my @packages = split(/,/,$packages);
1.319 foxr 2061: my $allow_print_points = 0;
2062: foreach my $partial_key (@packages) {
2063: if ($partial_key=~m/^part_0$/) {
2064: $allow_print_points=1;
2065: }
2066: }
2067: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2068: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2069: if (lc($env{'course.'.$env{'request.course.id'}.
2070: '.disableexampointprint'}) eq 'yes') {
2071: $allow_print_points=0;
2072: }
2073: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2074: 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 2075: &clear_required_languages();
1.319 foxr 2076: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2077: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2078:
2079: # Figure out what the due date is and if we need to print
2080: # it in the problem header. We have been logging the
2081: # last due date written to file.
2082:
2083: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2084: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2085: my $duedate_text = &mt('Due date: [_1]'
2086: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2087: my $temp_file;
2088: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2089:
2090: # Figure out what the last printed due date is or set it
2091: # to the epoch if no duedates have been printed.
2092:
2093: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2094: if (-e $filename) {
2095: $temp_file = Apache::File->new($filename);
2096: my @due_file = <$temp_file>;
2097: $due_file_content = $due_file[$#due_file];
2098: chomp $due_file_content;
2099: }
2100:
2101: # We display the due date iff it is not the same as the last
2102: # duedate in problem header ($due_file_content), and
2103: # none of our parts displayed a duedate.
2104: #
2105: my $parts_with_displayduedate;
2106: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2107: $parts_with_displayduedate =
2108: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2109: } else {
2110: $parts_with_displayduedate = 0;
2111: }
2112: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2113: $temp_file = Apache::File->new('>'.$filename);
2114: print $temp_file "$duetime\n";
2115: if (not $env{'request.symb'} =~ m/\.page_/) {
2116: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2117: $frontmatter .= $begin_doc.
1.448 bisitz 2118: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2119: } else {
2120: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2121: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2122: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2123: }
1.319 foxr 2124: }
2125: } else {
1.448 bisitz 2126: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2127: }
2128: } else {
2129: if (not $env{'request.symb'} =~ m/\.page_/) {
2130: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2131: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2132: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2133: }
1.319 foxr 2134: } else {
1.381 albertel 2135: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2136: }
2137: }
2138: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1.574 ! raeburn 2139: } elsif ($target eq 'web') {
! 2140: if ($env{'request.user_in_effect'}) {
! 2141: &reset_problem_globals('problem');
! 2142: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
! 2143: return $result;
! 2144: }
1.319 foxr 2145: }
2146:
1.159 albertel 2147: my $status=$Apache::inputtags::status['-1'];
2148: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2149: $target eq 'tex') {
1.249 albertel 2150: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2151: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2152: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2153: &Apache::inputtags::grade;
1.324 albertel 2154: } elsif ($status eq 'NEEDS_CHECKIN') {
2155: # no need to grade, and don't want to hide data
1.249 albertel 2156: } else {
2157: # move any submission data to .hidden
2158: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2159: }
1.159 albertel 2160: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2161: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2162: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2163: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2164: # if part is zero, no <part>s existed, so we need show the current
2165: # grading status
2166: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2167: $result.= $gradestatus;
2168: }
2169: if (
1.284 albertel 2170: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2171: ($target eq 'answer') || ($target eq 'tex')
2172: ) {
1.490 raeburn 2173: if (($target ne 'tex') &&
2174: ($env{'form.answer_output_mode'} ne 'tex') &&
2175: (!$env{'form.grade_imsexport'})) {
1.254 www 2176: $result.="</form>";
1.159 albertel 2177: }
2178: if ($target eq 'web') {
1.507 raeburn 2179: #
2180: # Closing </body></html> not added by end_page().
2181: # Added separately at end of this routine, after added
2182: # <script></script> so document will be valid xhtml.
2183: #
1.546 raeburn 2184: my $showdisc = 1;
1.547 raeburn 2185: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
2186: (!$env{'request.role.adv'})) {
2187: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 2188: $showdisc = 0;
1.547 raeburn 2189: my ($symb)= &Apache::lonnet::whichuser();
2190: if ($symb) {
2191: my $navmap = Apache::lonnavmaps::navmap->new();
2192: if (ref($navmap)) {
2193: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
2194: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 2195: # and there are no tries left
1.547 raeburn 2196: unless ($hastries) {
2197: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
2198: my ($score,$incomplete) =
2199: &Apache::lonplacementtest::check_completion(undef,undef,1);
2200: if (!$incomplete) {
2201: $result .= &Apache::lonplacementtest::showresult(1,1);
2202: } elsif ($incomplete < 100) {
2203: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
2204: }
2205: } else {
2206: # For Placement Tests score is displayed if test has just been completed
2207: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
2208: if (!$incomplete) {
2209: $result.= &Apache::lonplacementtest::showresult(1,1);
2210: }
2211: }
2212: }
2213: }
2214: }
1.546 raeburn 2215: }
2216: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2217: 'notbody' => 1});
1.159 albertel 2218: } elsif ($target eq 'tex') {
1.178 sakharuk 2219: my $endminipage = '';
1.284 albertel 2220: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2221: $endminipage = '\end{minipage}';
2222: }
1.284 albertel 2223: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2224: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2225: } else {
1.262 sakharuk 2226: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2227: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2228: $result .= $endminipage.'\end{document} ';
2229: } else {
1.382 albertel 2230: $result .= $endminipage;
1.262 sakharuk 2231: }
1.159 albertel 2232: }
2233: }
2234: }
1.476 www 2235: if ($target eq 'web') {
1.566 raeburn 2236: $result.=&Apache::functionplotresponse::init_script();
2237: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2238: my ($symb) = &Apache::lonnet::whichuser();
2239: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2240: ($status eq 'CAN_ANSWER')) {
2241: unless (@Apache::inputtags::partlist > 1) {
2242: $result.= <<"ENDJS";
2243: <script type="text/javascript">
2244: // <![CDATA[
2245: \$(document).ready(function() {
2246: \$('#LC_randomizetry_header').css('display','block');
2247: });
2248: // ]]>
2249: </script>
2250: ENDJS
2251: }
2252: }
2253: }
1.476 www 2254: }
1.159 albertel 2255: if ($target eq 'grade') {
2256: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2257: &finalize_storage();
2258: }
1.284 albertel 2259: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2260: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2261: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2262: # normally we get it from above, but in CSTR
1.172 albertel 2263: # we always show answer mode too.
1.159 albertel 2264: }
2265: } elsif ($target eq 'meta') {
2266: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2267: @Apache::inputtags::response=();
1.159 albertel 2268: $result=&Apache::response::mandatory_part_meta;
2269: }
1.559 raeburn 2270: $result.=&Apache::response::meta_part_order('problem');
1.258 albertel 2271: $result.=&Apache::response::meta_response_order();
1.159 albertel 2272: } elsif ($target eq 'edit') {
2273: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2274: $result .= &problem_edit_footer();
1.320 albertel 2275: } elsif ($target eq 'modified') {
2276: $result .= $token->[2];
1.159 albertel 2277: }
1.155 albertel 2278:
1.284 albertel 2279: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2280: &Apache::inputtags::check_for_duplicate_ids();
2281: }
1.204 albertel 2282:
2283: &reset_problem_globals('problem');
1.159 albertel 2284:
1.502 foxr 2285: #
2286: # This shouild be just above the return so that the
2287: # time put in the javascript is as late as possible in the
2288: # computation:
2289: #
2290: if ($target eq 'web') {
2291: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2292: #
2293: # Closing tags delayed so any <script></script> tags
2294: # not in head can appear inside body, for valid xhtml.
2295: #
2296: $result .= "</body>\n</html>";
1.502 foxr 2297: }
1.159 albertel 2298: return $result;
1.48 albertel 2299: }
2300:
1.108 albertel 2301:
1.48 albertel 2302: sub start_library {
1.159 albertel 2303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2304: my ($result,$form_tag_start);
1.371 albertel 2305: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2306: &init_problem_globals('library');
2307: $Apache::lonhomework::type='problem';
2308: }
1.159 albertel 2309: if ($target eq 'edit') {
1.343 albertel 2310: ($result,$form_tag_start)=
2311: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2312: 'Edit');
2313: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2314: my $temp=&Apache::edit::insertlist($target,$token);
2315: $result.=$temp;
2316: } elsif ($target eq 'modified') {
2317: $result=$token->[4];
1.340 albertel 2318: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2319: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2320: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2321: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2322: ($result,$form_tag_start)=
2323: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2324: $name);
1.479 raeburn 2325: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2326: $result.=" \n $form_tag_start".
1.159 albertel 2327: '<input type="hidden" name="submitted" value="yes" />';
2328: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2329: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2330: $result.= '<button type="submit" name="resetdata" '.
2331: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2332: &practice_problem_header().'<hr />';
1.428 raeburn 2333: }
1.159 albertel 2334: }
2335: return $result;
1.48 albertel 2336: }
2337:
2338: sub end_library {
1.159 albertel 2339: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2340: my $result='';
2341: if ($target eq 'edit') {
2342: $result=&problem_edit_footer();
1.371 albertel 2343: } elsif ($target eq 'web'
2344: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2345: && $env{'request.state'} eq "construct") {
1.349 albertel 2346: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.558 raeburn 2347: } elsif ($target eq 'meta') {
1.559 raeburn 2348: $result.=&Apache::response::meta_part_order('library');
1.558 raeburn 2349: $result.=&Apache::response::meta_response_order();
1.159 albertel 2350: }
1.371 albertel 2351: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2352: &reset_problem_globals('library');
2353: }
1.159 albertel 2354: return $result;
1.197 www 2355: }
2356:
2357: sub start_definetag {
1.326 albertel 2358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2359:
2360: my $result;
2361:
2362: my $name = $token->[2]->{'name'};
1.326 albertel 2363: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2364: if ($target eq 'web') {
2365: if ($name=~/^\//) {
2366: $result=
2367: '<br /><table class="LC_sty_end"><tr><th>'.
2368: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2369: } else {
2370: $result=
2371: '<br /><table class="LC_sty_begin"><tr><th>'.
2372: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2373: }
2374: $skip = &HTML::Entities::encode($skip, '<>&"');
2375: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2376: }
2377: return $result;
2378: }
2379:
2380: sub end_definetag {
2381: return '';
1.1 albertel 2382: }
2383:
2384: sub start_block {
1.201 albertel 2385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2386:
2387: my $result;
1.1 albertel 2388:
1.339 albertel 2389: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2390: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2391: my $code = $token->[2]->{'condition'};
1.385 albertel 2392: if (defined($code) && $code ne '') {
1.137 albertel 2393: if (!$Apache::lonxml::default_homework_loaded) {
2394: &Apache::lonxml::default_homework_load($safeeval);
2395: }
1.131 albertel 2396: $result = &Apache::run::run($code,$safeeval);
2397: &Apache::lonxml::debug("block :$code: returned :$result:");
2398: } else {
2399: $result='1';
2400: }
2401: if ( ! $result ) {
1.201 albertel 2402: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2403: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2404: }
2405: $result='';
2406: } elsif ($target eq 'edit') {
2407: $result .=&Apache::edit::tag_start($target,$token);
2408: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2409: $token,40);
2410: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2411: } elsif ($target eq 'modified') {
2412: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2413: $safeeval,'condition');
2414: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2415: }
1.131 albertel 2416: return $result;
1.1 albertel 2417: }
2418:
2419: sub end_block {
1.167 www 2420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2421: my $result;
2422: if ($target eq "edit") {
2423: $result.= &Apache::edit::tag_end($target,$token,'');
2424: }
2425: return $result;
2426: }
1.500 foxr 2427: #
2428: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2429: # ...
2430: # </languageblock>
2431: #
2432: # This declares the intent to provide content that can be rendered in the
2433: # set of languages in the include specificatino but not in the exclude
2434: # specification. If a currently preferred language is in the include list
2435: # the content in the <languageblock>...</languageblock> is rendered
2436: # If the currently preferred language is in the exclude list,
2437: # the content in the <languageblock>..></languageblock is not rendered.
2438: #
2439: # Pathalogical case handling:
2440: # - Include specified, without the preferred language but exclude specified
2441: # also without the preferred langauge results in rendering the block.
2442: # - Exclude specified without include and excluden not containing a
2443: # preferred language renders the block.
2444: # - Include and exclude both specifying the preferred language does not
2445: # render the block.
2446: # - If neither include/exclude is specified, the block gets rendered.
2447: #
2448: # This tag has no effect when target is in {edit, modified}
2449: #
1.167 www 2450: sub start_languageblock {
1.201 albertel 2451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2452:
1.500 foxr 2453: my $result = '';
1.167 www 2454:
1.339 albertel 2455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2457: my $include = $token->[2]->{'include'};
2458: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2459: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2460:
2461: # This should not even happen, since we should at least have the server language
2462:
2463: if (!$preferred_languages[0]) {
2464: $preferred_languages[0]='en';
2465: }
2466:
2467: # Now loop over all languages in order of preference
2468:
2469: my $render;
1.398 www 2470: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2471:
2472: # If neither include/nor exlude is present the block is going
2473: # to get rendered.
2474:
1.399 www 2475: my $found=0;
1.500 foxr 2476: $render=1;
2477:
2478: # If include is specified, don't render the block
2479: # unless the preferred language is included in the set.
2480:
1.398 www 2481: if ($include) {
1.500 foxr 2482: $render=0;
1.398 www 2483: foreach my $included_language (split(/\,/,$include)) {
2484: if ($included_language eq $preferred_language) {
1.500 foxr 2485: $render=1;
1.399 www 2486: $found=1;
1.500 foxr 2487: last; # Only need to find the first.
1.398 www 2488: }
2489: }
2490: }
1.500 foxr 2491: # Do we have an exclude argument?
2492: # If so, and one of the languages matches a preferred language
2493: # inhibit rendering the block. Note that in the pathalogical case the
2494: # author has specified a preferred language in both the include and exclude
2495: # attribte exclude is preferred.
2496:
1.398 www 2497: if ($exclude) {
1.500 foxr 2498: $render=1;
1.398 www 2499: foreach my $excluded_language (split(/\,/,$exclude)) {
2500: if ($excluded_language eq $preferred_language) {
1.500 foxr 2501: $render=0;
1.399 www 2502: $found=1;
1.500 foxr 2503: last; # Only need to find the first.
1.398 www 2504: }
2505: }
2506: }
1.500 foxr 2507: if ($found) {
2508: last; # Done on any match of include or exclude.
2509: }
1.398 www 2510: }
1.500 foxr 2511: # If $render not true skip the entire block until </languageblock>
2512: #
2513:
2514: if ( ! $render ) {
1.201 albertel 2515: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2516: $style);
2517: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2518: }
1.500 foxr 2519: # If $render is true, we've not skipped the contents of the <languageglock>
2520: # and the normal loncapa processing flow will render it as a matter of course.
2521:
1.167 www 2522: } elsif ($target eq 'edit') {
2523: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2524: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2525: $token,40);
1.211 albertel 2526: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2527: $token,40);
2528: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2529: } elsif ($target eq 'modified') {
2530: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2531: $safeeval,'include',
2532: 'exclude');
1.167 www 2533: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2534: }
2535: return $result;
2536: }
2537:
2538: sub end_languageblock {
1.170 www 2539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2540: my $result;
1.201 albertel 2541: if ($target eq "edit") {
1.170 www 2542: $result.= &Apache::edit::tag_end($target,$token,'');
2543: }
2544: return $result;
2545: }
1.500 foxr 2546: # languagblock specific tags:
2547: {
2548: # For chunks of a resource that has translations, this hash contains
2549: # the translations available indexed by language name.
2550: #
2551:
2552: my %available_texts;
1.170 www 2553:
1.500 foxr 2554: # <translated> starts a block of a resource that has multiple translations.
2555: # See the <lang> tag as well.
2556: # When </translated> is encountered if there is a translation for the
2557: # currently preferred language, that is rendered inthe web/tex/webgrade
2558: # targets. Otherwise, the default text is rendered.
2559: #
2560: # Note that <lang> is only registered for the duration of the
2561: # <translated>...</translated> block
2562: #
2563: # Pathalogical case handling:
2564: # - If there is no <lang> that specifies a 'default' and there is no
2565: # translation that matches a preferred language, nothing is rendered.
2566: # - Nested <translated>...</translated> might be linguistically supported by
2567: # XML due to the stack nature of tag registration(?) however the rendered
2568: # output will be incorrect because there is only one %available_texts
2569: # has and end_translated clears it.
2570: # - Material outside of a <lang>...</lang> block within the
2571: # <translated>...<translated> block won't render either e.g.:
2572: # <translated>
2573: # The following will be in your preferred langauge:
2574: # <lang which='en'>
2575: # This section in english
2576: # </lang>
2577: # <lang which='sgeiso'>
2578: # Hier es ist auf Deutsch.
2579: # </lang>
2580: # <lang which='sfriso'>
2581: # En Francais
2582: # </lang>
2583: # </translated>
2584: #
2585: # The introductory text prior to the first <lang> tag is not rendered.
2586: #
1.397 albertel 2587: sub start_translated {
2588: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2589: &Apache::lonxml::register('Apache::structuretags',('lang'));
2590: undef(%available_texts);
2591: }
2592:
2593: sub end_translated {
2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2595: my $result;
2596: #show the translation on viewable targets
2597: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2598: # or non-viewable targets, if it's embedded in something that
2599: # wants the output
2600: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2601: && &Apache::lonxml::in_redirection() ) ) {
2602: my @possibilities = keys(%available_texts);
2603: my $which =
2604: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2605: if ($target eq 'tex') {
2606: $result = &select_hyphenation($which);
2607: }
2608: $result .= $available_texts{$which};
2609: if ($target eq 'tex') {
2610: $result .= &select_metadata_hyphenation(); # Restore original language.
2611: }
1.397 albertel 2612: }
2613: undef(%available_texts);
2614: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2615: return $result;
2616: }
2617:
1.500 foxr 2618: # <lang [which='language-name'] [other='lang1,lang2...']>
2619: # Specifies that the block contained within it is a translation
2620: # for a specific language specified by the 'which' attribute. The
2621: # 'other' attribute can be used by itself or in conjunction with
2622: # which to specify this tag _may_ be used as a translation for some
2623: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2624: # specifying that the block provides a translation for US (primary)
2625: # Canadian, Australian and UK Englush.
2626: #
2627: # Comment: this seems a bit silly why not just support a list of languages
2628: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2629: #
2630: # Effect:
2631: # The material within the <lang>..</lang> block is stored in the
2632: # specified set of $available_texts hash entries, the appropriate one
2633: # is selected at </translated> time.
2634: #
2635: # Pathalogical case handling:
2636: # If a language occurs multiple times within a <translated> block,
2637: # only the last one is rendered e.g.:
2638: #
2639: # <translated>
2640: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2641: # Red green color blindness is quite common affecting about 7.8% of
2642: # the male population, but onloy about .65% of the female population.
2643: # </lang>
2644: # Red green colour blindness is quite common affecting about 7.8% of
2645: # the male population, but onloy about .65% of the female population.
2646: # <lang which='seniso', other='senisoCA,senisoAU'>
2647: # </translated>
2648: #
2649: # renders the correct spelling of color (colour) for people who have specified
2650: # a preferred language that is one of the British Commonwealth languages
2651: # even though those are also listed as valid selections for the US english
2652: # <lang> block.
2653: #
1.397 albertel 2654: sub start_lang {
2655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2656: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2657: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2658: &Apache::lonxml::startredirection();
2659: }
2660: return '';
2661: }
2662:
2663: sub end_lang {
2664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2665: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2666: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2667: my $result = &Apache::lonxml::endredirection();
2668: my $which = &Apache::lonxml::get_param('which',$parstack,
2669: $safeeval);
1.431 raeburn 2670: if ($which=~/\w/) {
2671: $available_texts{$which} = $result;
2672: }
2673: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2674: $safeeval);
2675: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2676: if ($language=~/\w/) {
2677: $available_texts{$language} = $result;
2678: }
1.427 bisitz 2679: }
2680:
1.397 albertel 2681: }
2682: return '';
2683: }
1.500 foxr 2684: } # end langauge block specific tags.
2685:
1.397 albertel 2686:
1.170 www 2687: sub start_instructorcomment {
1.201 albertel 2688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2689:
2690: my $result;
2691:
1.339 albertel 2692: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2693: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2694: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2695: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2696: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2697: $parser,$style);
1.170 www 2698: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2699: }
2700: $result='';
2701: } elsif ($target eq 'edit') {
2702: $result .=&Apache::edit::tag_start($target,$token);
2703: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2704: }
2705: return $result;
2706: }
2707:
2708: sub end_instructorcomment {
1.159 albertel 2709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2710: my $result;
2711: if ($target eq "edit") {
2712: $result.= &Apache::edit::tag_end($target,$token,'');
2713: }
2714: return $result;
1.4 tsai 2715: }
2716:
2717: sub start_while {
1.326 albertel 2718: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2719:
1.160 albertel 2720: my $result;
1.339 albertel 2721: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2722: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2723: my $code = $token->[2]->{'condition'};
1.4 tsai 2724:
1.160 albertel 2725: push( @Apache::structuretags::whileconds, $code);
2726: if (!$Apache::lonxml::default_homework_loaded) {
2727: &Apache::lonxml::default_homework_load($safeeval);
2728: }
2729: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2730: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2731: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2732: push( @Apache::structuretags::whileline, $token->[5]);
2733: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2734: if ( $result ) {
2735: &Apache::lonxml::newparser($parser,\$bodytext);
2736: }
2737: } elsif ($target eq 'edit') {
2738: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2739: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2740: $token,40);
2741: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2742: } elsif ($target eq 'modified') {
2743: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2744: $safeeval,'condition');
2745: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2746: }
1.160 albertel 2747: return $result;
1.4 tsai 2748: }
2749:
2750: sub end_while {
1.159 albertel 2751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2752: my $result;
2753:
1.339 albertel 2754: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2755: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2756: my $code = pop(@Apache::structuretags::whileconds);
2757: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2758: my $line = pop(@Apache::structuretags::whileline);
2759: my $return = &Apache::run::run($code,$safeeval);
2760: my $starttime=time;
2761: my $error=0;
2762: while ($return) {
2763: if (time-$starttime >
2764: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2765: $return = 0; $error=1; next;
1.161 albertel 2766: }
2767: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2768: if ($target eq 'grade' || $target eq 'answer' ||
2769: $target eq 'analyze') {
2770: # grade/answer/analyze should produce no output but if we
2771: # are redirecting, the redirecter should know what to do
2772: # with the output
2773: if (!$Apache::lonxml::redirection) { undef($result); }
2774: }
1.161 albertel 2775: $return = &Apache::run::run($code,$safeeval);
2776: }
1.516 bisitz 2777: if ($error) {
2778: &Apache::lonxml::error(
2779: '<pre>'
2780: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2781: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2782: .&mt('This occurred while running <while> on line [_1].',
2783: $line)
2784: .'</pre>');
2785: }
1.160 albertel 2786: } elsif ($target eq "edit") {
2787: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2788: }
1.160 albertel 2789: return $result;
1.1 albertel 2790: }
1.6 tsai 2791:
1.160 albertel 2792: # <randomlist show="1">
1.6 tsai 2793: # <tag1>..</tag1>
2794: # <tag2>..</tag2>
2795: # <tag3>..</tag3>
1.160 albertel 2796: # ...
1.6 tsai 2797: # </randomlist>
2798: sub start_randomlist {
1.326 albertel 2799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2800: my $result;
1.339 albertel 2801: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2802: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2803: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2804: my $b_parser= HTML::LCParser->new(\$body);
2805: $b_parser->xml_mode(1);
2806: $b_parser->marked_sections(1);
1.159 albertel 2807: my $b_tok;
2808: my @randomlist;
2809: my $list_item;
2810: while($b_tok = $b_parser->get_token() ) {
2811: if($b_tok->[0] eq 'S') { # start tag
2812: # get content of the tag until matching end tag
2813: # get all text upto the matching tag
2814: # and push the content into @randomlist
2815: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2816: $b_parser);
2817: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2818: push(@randomlist,$list_item);
2819: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2820: # $list_item</b>";
2821: }
2822: if($b_tok->[0] eq 'T') { # text
2823: # what to do with text in between tags?
2824: # print "<b>TEXT $b_tok->[1]</b><br />";
2825: }
2826: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2827: # print "<b>END-TAG $b_tok->[1]</b><br />";
2828: # }
2829: }
1.303 albertel 2830: if (@randomlist) {
2831: my @idx_arr = (0 .. $#randomlist);
1.555 raeburn 2832: if ($env{'form.code_for_randomlist'}) {
2833: &Apache::structuretags::shuffle(\@idx_arr,$target);
2834: undef($env{'form.code_for_randomlist'});
2835: } else {
2836: &Apache::structuretags::shuffle(\@idx_arr);
2837: }
1.303 albertel 2838: my $bodytext = '';
2839: my $show=$#randomlist;
2840: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2841: $showarg--;
2842: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2843: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2844: my @currlist;
2845: my $part = $Apache::inputtags::part;
2846: if ($part ne '') {
2847: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2848: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2849: if (!(grep(/^\Q$part\E$/,@currlist))) {
2850: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2851: }
2852: } else {
2853: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2854: }
2855: }
2856: }
1.526 raeburn 2857: for my $i (0 .. $show) {
2858: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2859: }
2860: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2861: }
2862: } elsif ($target eq 'edit' ) {
2863: $result .=&Apache::edit::tag_start($target,$token);
2864: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2865: $token,5);
2866: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2867: } elsif ($target eq 'modified' ) {
2868: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2869: $safeeval,'show');
2870: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2871: }
2872: return $result;
1.7 tsai 2873: }
2874:
2875: sub shuffle {
1.555 raeburn 2876: my ($a,$target) = @_;
1.7 tsai 2877: my $i;
1.303 albertel 2878: if (ref($a) eq 'ARRAY' && @$a) {
1.555 raeburn 2879: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2880: for($i=@$a;--$i;) {
2881: my $j=int(&Math::Random::random_uniform() * ($i+1));
2882: next if $i == $j;
2883: @$a[$i,$j] = @$a[$j,$i];
2884: }
1.251 albertel 2885: &Apache::response::poprandomnumber();
1.7 tsai 2886: }
1.6 tsai 2887: }
2888:
2889: sub end_randomlist {
1.159 albertel 2890: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2891: my $result;
2892: if ($target eq 'edit' ) {
2893: $result=&Apache::edit::tag_end($target,$token,
2894: 'End Randomly Parsed Block');
2895: }
2896: return $result;
1.6 tsai 2897: }
2898:
1.283 albertel 2899: sub ordered_show_check {
2900: my $last_part=$Apache::inputtags::partlist[-2];
2901: my $in_order=
2902: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2903: my $in_order_show=1;
2904: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2905: $in_order_show=&Apache::response::check_status($last_part);
2906: }
2907: return $in_order_show;
2908: }
2909:
1.469 www 2910:
2911: sub start_startpartmarker {
2912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2913: my $result='';
2914: if ($target eq 'edit') {
2915: $result=&Apache::edit::tag_start($target,$token);
2916: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2917: $result.=&Apache::edit::end_table();
2918:
2919: }
2920: return $result;
2921: }
2922:
2923: sub end_startpartmarker {
2924: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2925: my @result;
2926: if ($target eq 'edit') { $result[1]='no'; }
2927: return @result;
2928: }
2929:
2930: sub start_endpartmarker {
2931: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2932: my $result='';
2933: if ($target eq 'edit') {
2934: $result=&Apache::edit::tag_start($target,$token);
2935: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2936: $result.=&Apache::edit::end_table();
2937:
2938: }
2939: return $result;
2940: }
2941:
2942: sub end_endpartmarker {
2943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2944: my @result;
2945: if ($target eq 'edit') { $result[1]='no'; }
2946: return @result;
2947: }
2948:
2949:
2950:
2951:
2952:
1.11 albertel 2953: sub start_part {
1.326 albertel 2954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2955: if (!$Apache::lonxml::metamode) {
2956: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2957: # duedates.
2958: }
1.159 albertel 2959: my $result='';
1.386 albertel 2960: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2961: $Apache::inputtags::part=$id;
1.177 albertel 2962: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2963: $Apache::inputtags::leniency='';
1.177 albertel 2964: @Apache::inputtags::response=();
1.159 albertel 2965: @Apache::inputtags::previous=();
2966: @Apache::inputtags::previous_version=();
1.405 albertel 2967: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2968: &Apache::response::reset_params();
2969:
1.159 albertel 2970: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2971: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2972: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2973: if ($Apache::lonhomework::type eq 'randomizetry') {
2974: my $rndseed=&setup_rndseed($safeeval,$target);
2975: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2976: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2977: }
1.570 raeburn 2978: } elsif (@Apache::inputtags::partlist > 1) {
2979: my $prevparttype = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[-2].type");
2980: if ($prevparttype eq 'randomizetry') {
2981: my $rndseed=&setup_rndseed($safeeval,$target,'',$prevparttype);
2982: if (($target eq 'grade') && &Apache::response::submitted()) {
2983: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2984: }
2985: }
1.528 raeburn 2986: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2987: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2988: }
1.283 albertel 2989: my $in_order_show=&ordered_show_check();
1.214 albertel 2990: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2991: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2992: &Apache::run::run($expression,$safeeval);
1.159 albertel 2993:
2994: if ($target eq 'meta') {
1.224 www 2995: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2996: return &Apache::response::mandatory_part_meta.
2997: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2998: } elsif ($target eq 'web' || $target eq 'grade' ||
2999: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 3000: if ($hidden || !$in_order_show) {
1.326 albertel 3001: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 3002: } else {
3003: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
3004: push (@Apache::inputtags::status,$status);
3005: my $expression='$external::datestatus="'.$status.'";';
3006: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
3007: &Apache::run::run($expression,$safeeval);
1.284 albertel 3008: if ($env{'request.state'} eq 'construct') {
1.241 albertel 3009: &set_problem_state($Apache::inputtags::part);
1.240 albertel 3010: }
1.216 albertel 3011: if (( $status eq 'CLOSED' ) ||
3012: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 3013: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 3014: ( $status eq 'BANNED') ||
3015: ( $status eq 'UNAVAILABLE') ||
3016: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 3017: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
3018: $style);
1.159 albertel 3019: if ( $target eq "web" ) {
1.211 albertel 3020: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 3021: } elsif ( $target eq 'tex' ) {
1.284 albertel 3022: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 3023: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 3024: } else {
1.211 albertel 3025: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 3026: }
1.159 albertel 3027: }
3028: } else {
3029: if ($target eq 'tex') {
1.284 albertel 3030: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 3031: if ($$tagstack[-2] eq 'td') {
1.388 foxr 3032: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 3033: } else {
3034: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
3035: }
1.195 sakharuk 3036: }
1.159 albertel 3037: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 3038: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 3039: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 3040: my $allow_print_points = 0;
3041: foreach my $partial_key (@allkeys) {
1.230 albertel 3042: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 3043: if ($1 ne '0') {$allow_print_points=1;}
3044: }
3045: }
1.275 albertel 3046: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
3047: if (defined($maxtries) && $maxtries < 0) {
3048: $allow_print_points=0;
3049: }
1.302 albertel 3050: if (lc($env{'course.'.$env{'request.course.id'}.
3051: '.disableexampointprint'}) eq 'yes') {
3052: $allow_print_points=0;
3053: }
1.463 foxr 3054: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3055: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3056:
3057: }
1.233 www 3058: } elsif ($target eq 'web') {
1.479 raeburn 3059: if ($status eq 'CAN_ANSWER') {
3060: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3061: my $num = scalar(@Apache::inputtags::partlist)-1;
1.567 raeburn 3062: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3063: ($Apache::lonhomework::randomizetrypart)) &&
1.566 raeburn 3064: ($Apache::lonhomework::type ne 'randomizetry')) {
3065: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3066: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3067: $Apache::lonhomework::randomizetrypart = 1;
3068: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3069: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3070: }
3071: }
1.475 raeburn 3072: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3073: }
3074: }
3075: }
3076: } elsif ($target eq 'edit') {
3077: $result.=&Apache::edit::tag_start($target,$token);
3078: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3079: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3080: ' '.
3081: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3082: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3083: } elsif ($target eq 'modified') {
3084: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3085: $safeeval,'id','display');
1.159 albertel 3086: if ($constructtag) {
1.225 albertel 3087: #limiting ids to only letters numbers, and space
1.224 www 3088: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3089: $result = &Apache::edit::rebuild_tag($token);
3090: }
3091: }
3092: return $result;
1.11 albertel 3093: }
3094:
3095: sub end_part {
1.159 albertel 3096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3097: &Apache::lonxml::debug("in end_part $target ");
3098: my $status=$Apache::inputtags::status['-1'];
3099: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3100: my $in_order_show=&ordered_show_check();
1.321 albertel 3101: my $result;
3102: if (!$Apache::lonxml::metamode) {
3103: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3104: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3105: }
1.312 albertel 3106: if ($target eq 'grade') {
1.249 albertel 3107: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3108: !$hidden && $in_order_show) {
1.311 foxr 3109: $result.=&Apache::inputtags::grade;
1.249 albertel 3110: } else {
3111: # move any submission data to .hidden
3112: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3113: }
1.283 albertel 3114: } elsif (($target eq 'web' || $target eq 'tex') &&
3115: !$hidden && $in_order_show) {
1.159 albertel 3116: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3117: $target);
1.490 raeburn 3118: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3119: ($env{'form.grade_imsexport'})) {
1.212 albertel 3120: $gradestatus='';
3121: }
1.311 foxr 3122: $result.=$gradestatus;
1.572 raeburn 3123: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {
3124: if (not $env{'form.problem_split'}=~/yes/) {
3125: $result.='\end{minipage}';
3126: }
1.573 raeburn 3127: }
1.181 albertel 3128: } elsif ($target eq 'edit') {
1.311 foxr 3129: $result.=&Apache::edit::end_table();
1.322 albertel 3130: } elsif ($target eq 'modified') {
3131: $result .= $token->[2];
1.159 albertel 3132: }
3133: pop @Apache::inputtags::status;
3134: $Apache::inputtags::part='';
1.536 raeburn 3135: $Apache::inputtags::leniency='';
1.295 albertel 3136: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3137: return $result;
1.11 albertel 3138: }
1.1 albertel 3139:
1.25 albertel 3140: sub start_preduedate {
1.326 albertel 3141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3142: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3143: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3144: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3145: if (!$Apache::lonhomework::scantronmode &&
3146: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3147: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3148: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3149: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3150: }
1.24 albertel 3151: }
1.159 albertel 3152: return '';
1.24 albertel 3153: }
3154:
1.25 albertel 3155: sub end_preduedate {
1.159 albertel 3156: return '';
1.24 albertel 3157: }
3158:
1.369 foxr 3159: # In all the modes where <postanswerdate> text is
3160: # displayable, all we do is eat up the text between the start/stop
3161: # tags if the conditions are not right to display it.
1.25 albertel 3162: sub start_postanswerdate {
1.326 albertel 3163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3164: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3165: &Apache::lonnet::allowed('pav',
3166: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3167: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3168: $target eq 'tex' ) {
1.300 albertel 3169: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3170: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3171: (($target eq 'tex') && !$pav)) {
1.326 albertel 3172: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3173: }
3174: }
3175: return '';
1.24 albertel 3176: }
3177:
1.25 albertel 3178: sub end_postanswerdate {
1.159 albertel 3179: return '';
1.24 albertel 3180: }
3181:
1.25 albertel 3182: sub start_notsolved {
1.326 albertel 3183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3184: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3185: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3186: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3187: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3188: if ($gradestatus =~ /^correct/ &&
3189: &Apache::response::show_answer()) {
1.159 albertel 3190: &Apache::lonxml::debug("skipping");
1.326 albertel 3191: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3192: }
1.24 albertel 3193: }
1.159 albertel 3194: return '';
1.24 albertel 3195: }
3196:
1.25 albertel 3197: sub end_notsolved {
1.159 albertel 3198: return '';
1.24 albertel 3199: }
3200:
3201: sub start_solved {
1.326 albertel 3202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3203: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3204: $target eq 'tex') {
3205: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3206: if ($gradestatus !~ /^correct/ ||
3207: !&Apache::response::show_answer()) {
1.326 albertel 3208: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3209: }
1.24 albertel 3210: }
1.159 albertel 3211: return '';
1.24 albertel 3212: }
3213:
3214: sub end_solved {
1.248 albertel 3215: return '';
3216: }
3217:
3218: sub start_problemtype {
1.326 albertel 3219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3220: my $result;
1.339 albertel 3221: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3222: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3223: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3224: if (!defined($mode)) { $mode='show'; }
3225: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3226: my $found=0;
3227: foreach my $type (split(',',$for)) {
3228: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3229: }
3230: if ($mode eq 'show' && !$found) {
1.326 albertel 3231: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3232: }
3233: if ($mode eq 'hide' && $found) {
1.326 albertel 3234: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3235: }
3236: } elsif ($target eq 'edit') {
3237: $result .=&Apache::edit::tag_start($target,$token);
3238: $result.=&Apache::edit::select_arg('Mode:','mode',
3239: [['show','Show'],
3240: ['hide','Hide']]
3241: ,$token);
3242: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3243: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3244: ['survey','Survey'],
1.465 raeburn 3245: ['surveycred','Survey (with credit)'],
3246: ['anonsurvey','Anonymous Survey'],
3247: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3248: ['problem','Homework Problem'],
1.479 raeburn 3249: ['practice','Practice Problem'],
3250: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3251: ,$token);
3252: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3253: } elsif ($target eq 'modified') {
3254: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3255: $safeeval,'mode','for');
3256: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3257: }
3258: return $result;
3259: }
3260:
3261: sub end_problemtype {
1.159 albertel 3262: return '';
1.24 albertel 3263: }
1.34 albertel 3264:
3265: sub start_startouttext {
1.159 albertel 3266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3267: my @result=(''.'');
3268: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3269:
3270: my $nesting =
3271: &Apache::lonxml::set_state('outtext',
3272: &Apache::lonxml::get_state('outtext')+1);
3273: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3274: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3275: }
1.159 albertel 3276: return (@result);
1.34 albertel 3277: }
1.159 albertel 3278:
1.34 albertel 3279: sub end_startouttext {
1.326 albertel 3280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3281: my $result='';
3282: my $text='';
3283: if ($target eq 'edit') {
1.424 foxr 3284: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3285: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3286: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3287: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3288: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3289: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3290: .'</span></td>'
1.550 raeburn 3291: .'<td><span id="math_'.$areaid.'">';
3292: if ($env{'environment.nocodemirror'}) {
3293: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3294: } else {
3295: $result.=' ';
3296: }
3297: $result.='</span></td>'
1.474 raeburn 3298: .'<td>'
3299: .&Apache::edit::insertlist($target,$token)
3300: .'</td>'
1.515 golterma 3301: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3302: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3303: &Apache::edit::end_row().
1.362 albertel 3304: &Apache::edit::start_spanning_row()."\n".
1.255 www 3305: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3306: }
3307: if ($target eq 'modified') {
1.219 albertel 3308: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3309: }
3310: if ($target eq 'tex') {
3311: $result .= '\noindent ';
3312: }
3313: return $result;
1.34 albertel 3314: }
1.159 albertel 3315:
1.34 albertel 3316: sub start_endouttext {
1.159 albertel 3317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3318: my $result='';
3319: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3320: if ($target eq "modified") {
3321: $result='<endouttext />'.
1.377 albertel 3322: &Apache::edit::handle_insertafter('startouttext');
3323: }
1.404 albertel 3324:
3325: my $nesting =
3326: &Apache::lonxml::set_state('outtext',
3327: &Apache::lonxml::get_state('outtext')-1);
3328: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3329: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3330: &Apache::lonxml::set_state('outtext', 0);
3331: }
1.159 albertel 3332: return $result;
1.34 albertel 3333: }
1.159 albertel 3334:
1.34 albertel 3335: sub end_endouttext {
1.159 albertel 3336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3337: my @result=('','');
3338: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3339: return (@result);
1.34 albertel 3340: }
1.159 albertel 3341:
1.45 albertel 3342: sub delete_startouttext {
1.326 albertel 3343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3344: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3345: my $text=$$parser['-1']->get_text("/endouttext");
3346: my $ntoken=$$parser['-1']->get_token();
3347: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3348: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3349: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3350: # they did the last time round
3351: &Apache::lonxml::increasedepth($ntoken);
3352: &Apache::lonxml::decreasedepth($ntoken);
3353: return 1;
1.193 www 3354: }
3355:
3356: sub start_simpleeditbutton {
3357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3358: my $result='';
1.284 albertel 3359: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3360: ($target eq 'web') &&
1.330 albertel 3361: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3362: my $url=$env{'request.noversionuri'};
1.193 www 3363: $url=~s/\?.*$//;
1.367 albertel 3364: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3365: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3366: # $result='<p class="LC_warning">'
3367: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3368: # .&Apache::loncommon::help_open_topic('Caching')
3369: # .'</p>';
1.486 www 3370: $result.=&Apache::loncommon::head_subbox(
3371: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3372: .&Apache::lonhtmlcommon::add_item_funclist(
3373: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3374: .&mt('Edit').'</a>')
1.486 www 3375: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3376:
1.193 www 3377: }
3378: return $result;
3379: }
3380:
3381: sub end_simpleeditbutton {
3382: return '';
1.45 albertel 3383: }
1.34 albertel 3384:
1.428 raeburn 3385: sub practice_problem_header {
1.556 raeburn 3386: return '<h3 class="LC_info">'.&mt('Practice Problem').'</h3>'.
1.428 raeburn 3387: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3388: '</span>';
3389: }
3390:
1.479 raeburn 3391: sub randomizetry_problem_header {
1.566 raeburn 3392: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3393: my ($header,$text);
3394: if ($reqtries > 1) {
3395: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3396: if (($problemstatus eq 'no') ||
3397: ($problemstatus eq 'no_feedback_ever')) {
3398: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3399: } else {
3400: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3401: }
3402: } else {
3403: $header = &mt('New Problem Variation Each Try');
3404: if (($problemstatus eq 'no') ||
3405: ($problemstatus eq 'no_feedback_ever')) {
3406: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3407:
3408: } else {
3409: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3410: }
3411: }
1.566 raeburn 3412: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3413: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3414: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3415: } else {
3416: return '<h3 class="LC_info">'.$header.'</h3>'.
3417: '<span class="LC_info">'.$text.'</span><hr />';
3418: }
1.479 raeburn 3419: }
3420:
3421: sub randomizetry_part_header {
3422: my ($problemstatus,$reqtries,$num) = @_;
3423: my ($header,$text);
3424: if ($reqtries eq 'none') {
3425: $header = &mt('No Question Variation');
1.570 raeburn 3426: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3427: } elsif ($reqtries > 1) {
3428: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3429: if (($problemstatus eq 'no') ||
3430: ($problemstatus eq 'no_feedback_ever')) {
3431: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3432: } else {
3433: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3434: }
3435: } else {
3436: $header = &mt('New Question Variation For Each Try');
3437: if (($problemstatus eq 'no') ||
3438: ($problemstatus eq 'no_feedback_ever')) {
3439: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3440: } else {
3441: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3442: }
3443: }
3444: my $output;
3445: if ($num > 1) {
3446: $output .= '<hr />';
3447: }
1.556 raeburn 3448: $output .= '<h4 class="LC_info">'.$header.'</h4>'.
1.479 raeburn 3449: '<span class="LC_info">'.$text.'</span><br /><br />';
3450: return $output;
3451: }
3452:
1.1 albertel 3453: 1;
3454: __END__
1.435 jms 3455:
3456: =pod
3457:
3458: =back
3459:
3460: =cut
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