Annotation of loncom/homework/structuretags.pm, revision 1.569
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.569 ! raeburn 4: # $Id: structuretags.pm,v 1.568 2019/11/05 18:08:09 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.553 damieng 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','print','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
1.553 damieng 195: sub start_print {
196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
197: if ($target ne 'edit' && $target ne 'modified') {
198: if ($target ne 'tex') {
199: my $skip = &Apache::lonxml::get_all_text("/print",$parser,$style);
200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
201: }
202: } elsif ($target eq "edit") {
203: my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/print",$parser);
204: my $result = &Apache::edit::tag_start($target,$token);
205: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
206: return $result;
207: } elsif ($target eq "modified") {
208: return $token->[4].&Apache::edit::modifiedfield("/print",$parser);
209: }
210: return '';
211: }
212:
213: sub end_print {
214: return '';
215: }
216:
1.10 albertel 217: sub start_tex {
1.326 albertel 218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 219: my $result='';
1.383 albertel 220: if ($target ne 'edit' && $target ne 'modified') {
221: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
222: if ($target eq 'tex') {
1.434 foxr 223:
224: # If inside a table, occurrences of \\ must be removed;
225: # else the table blows up.
226:
227: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
228: $bodytext =~ s/\\\\//g;
229: }
1.432 foxr 230: return $bodytext.'{}';
1.383 albertel 231: }
232: } elsif ($target eq "edit" ) {
233: my $bodytext =
234: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
235: my $result = &Apache::edit::tag_start($target,$token);
236: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
237: return $result;
238: } elsif ( $target eq "modified" ) {
239: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 240: }
1.198 sakharuk 241: return $result;;
1.10 albertel 242: }
243:
244: sub end_tex {
1.44 ng 245: return '';
1.9 albertel 246: }
247:
1.400 albertel 248: sub homework_js {
1.531 raeburn 249: my ($postsubmit,$timeout);
250: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
1.546 raeburn 251: my $crstype = &Apache::loncommon::course_type();
252: if ($crstype eq 'Community') {
1.531 raeburn 253: $crstype = 'community';
1.546 raeburn 254: } elsif ($crstype eq 'Placement') {
255: $crstype = 'placement';
1.531 raeburn 256: } else {
257: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
258: $crstype = 'official';
259: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
260: $crstype = 'textbook';
261: } else {
262: $crstype = 'unofficial';
263: }
264: }
265: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
266: if ($postsubmit eq '') {
267: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
268: $postsubmit = $domdefs{'postsubmit'};
269: unless ($postsubmit eq 'off') {
270: $timeout = $domdefs{$crstype.'postsubtimeout'};
271: }
272: } elsif ($postsubmit eq '0') {
273: $postsubmit = 'off';
274: } elsif ($postsubmit eq '1') {
275: $postsubmit = 'on';
276: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
277: if ($timeout eq '') {
278: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
279: $timeout = $domdefs{$crstype.'postsubtimeout'};
280: }
281: }
282: if ($timeout eq '') {
283: $timeout = 60;
284: }
285: } else {
286: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
287: $postsubmit = $domdefs{'postsubmit'};
288: unless ($postsubmit eq 'off') {
289: $timeout = 60;
290: }
291: }
292: my $jstimeout = 0;
293: if ($timeout) {
294: $jstimeout = 1000 * $timeout;
295: }
1.400 albertel 296: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 297: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 298: &setmode_javascript().
1.531 raeburn 299: <<"JS";
1.400 albertel 300: <script type="text/javascript">
1.483 raeburn 301: // <![CDATA[
1.494 raeburn 302: function setSubmittedPart (part,prefix) {
303: if (typeof(prefix) == 'undefined') {
304: this.document.lonhomework.submitted.value="part_"+part;
305: } else {
306: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
307: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
308: this.document.lonhomework.elements[i].value="part_"+part;
309: }
310: }
311: }
1.400 albertel 312: }
313:
1.532 raeburn 314: function disableAutoComplete (id) {
315: var field = document.getElementById(id);
316: if (field != null && field != undefined){
317: if ('autocomplete' in field) {
318: field.autocomplete = "off";
319: } else {
320: field.setAttribute("autocomplete", "off");
321: }
322: }
323: }
324:
1.400 albertel 325: function image_response_click (which, e) {
326: init_geometry();
327: if (!e) { e = window.event; } //IE
328: var input_element = document.lonhomework.elements[which];
1.401 albertel 329: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 330: var token = token_element.value;
1.401 albertel 331: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 332: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
333: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
334: var click = x+':'+y;
335: input_element.value = click;
1.485 raeburn 336: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 337: }
1.520 raeburn 338:
339: var submithandled = 0;
1.521 raeburn 340: var keypresshandled = 0;
1.531 raeburn 341: var postsubmit = '$postsubmit';
1.520 raeburn 342:
1.531 raeburn 343: \$(document).ready(function(){
344: if (postsubmit != 'off') {
345: \$(document).keypress(function(event){
1.521 raeburn 346: var keycode = (event.keyCode ? event.keyCode : event.which);
347: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 348: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 349: keypresshandled = 1;
1.531 raeburn 350: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 351: if (idsArray.length) {
352: event.preventDefault();
353: var itemsArray = idsArray[1].split(/_/);
354: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 355: \$("#"+buttonId).trigger("click");
1.521 raeburn 356: }
357: }
358: }
359: });
360:
1.531 raeburn 361: \$(document).delegate('form :submit', 'click', function( event ) {
362: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 363: var buttonId = this.id;
1.531 raeburn 364: var timeout = $jstimeout;
1.520 raeburn 365: if (submithandled == 0) {
366: submithandled = 1;
1.531 raeburn 367: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 368: "color": "black","padding": "2px"}) ;
1.563 raeburn 369: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 370: if (buttonId != "all_submit") {
1.531 raeburn 371: \$( ".LC_status_"+buttonId ).hide();
1.563 raeburn 372: }
373: if (( "#"+buttonId+"_pressed" ).length) {
374: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.520 raeburn 375: }
1.522 raeburn 376: } else {
1.531 raeburn 377: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 378: }
1.531 raeburn 379: \$(this.form).submit();
380: \$( ".LC_hwk_submit" ).prop( "disabled", true);
381: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 382: event.preventDefault();
1.531 raeburn 383:
384: if (timeout > 0) {
385: setTimeout(function(){
386: \$( "#msg_"+buttonId ).css({"display": "none"});
1.563 raeburn 387: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
388: if (( "#"+buttonId+"_pressed" ).length) {
389: \$( "#"+buttonId+"_pressed" ).val( "" );
1.531 raeburn 390: }
391: }
392: \$( ".LC_hwk_submit" ).prop( "disabled", false);
393: \$( ".LC_textline" ).prop( "readonly", false);
394: submithandled = 0;
395: keypresshandled = 0;
396: }, timeout);
397: }
1.520 raeburn 398: return true;
399: }
400: }
401: });
1.531 raeburn 402: }
1.520 raeburn 403: });
404:
1.483 raeburn 405: // ]]>
1.400 albertel 406: </script>
407: JS
408: }
409:
1.416 raeburn 410: sub setmode_javascript {
411: return <<"ENDSCRIPT";
412: <script type="text/javascript">
1.485 raeburn 413: // <![CDATA[
1.416 raeburn 414: function setmode(form,probmode) {
1.554 damieng 415: var initial = form.problemmode.value;
1.416 raeburn 416: form.problemmode.value = probmode;
417: form.submit();
1.554 damieng 418: form.problemmode.value = initial;
1.416 raeburn 419: }
1.485 raeburn 420: // ]]>
1.416 raeburn 421: </script>
422: ENDSCRIPT
423: }
424:
1.48 albertel 425: sub page_start {
1.345 albertel 426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
427: $extra_head)=@_;
1.159 albertel 428: my %found;
1.207 albertel 429: foreach my $taginside (@$tagstack) {
1.159 albertel 430: foreach my $taglookedfor ('html','body','form') {
431: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
432: }
433: }
434:
1.343 albertel 435: if ($target eq 'tex') {
436: return
437: &Apache::londefdef::start_html($target,$token,$tagstack,
438: $parstack,$parser,$safeeval);
439: }
440:
1.474 raeburn 441: $extra_head .= &homework_js().
442: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
443: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.550 raeburn 444: my %textarea_args;
445: if (($env{'request.state'} ne 'construct') ||
446: ($env{'environment.nocodemirror'})) {
447: %textarea_args = (
1.474 raeburn 448: dragmath => 'math',
449: );
1.550 raeburn 450: }
1.474 raeburn 451: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 452: }
1.478 raeburn 453: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 454: my ($needs_upload,$partlist);
1.495 raeburn 455: my ($symb)= &Apache::lonnet::whichuser();
456: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 457: if ($is_task) {
1.495 raeburn 458: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 459: } else {
460: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 461: unless ($env{'request.state'} eq 'construct') {
462: my $navmap = Apache::lonnavmaps::navmap->new();
463: if (ref($navmap)) {
464: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 465: my $is_page;
466: if (ref($mapres)) {
467: $is_page = $mapres->is_page();
468: }
469: unless ($is_page) {
1.495 raeburn 470: $needs_upload = 1;
471: }
1.528 raeburn 472: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
475: $partlist = $res->parts();
476: }
477: }
1.495 raeburn 478: }
479: }
1.493 raeburn 480: } else {
481: unless ($env{'request.state'} eq 'construct') {
482: my $navmap = Apache::lonnavmaps::navmap->new();
483: if (ref($navmap)) {
1.495 raeburn 484: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 485: my $is_page;
486: if (ref($mapres)) {
487: $is_page = $mapres->is_page();
488: }
1.528 raeburn 489: if ($is_page) {
490: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
491: my $res = $navmap->getBySymb($symb);
492: if (ref($res)) {
493: $partlist = $res->parts();
494: }
495: }
496: } else {
1.495 raeburn 497: my $res = $navmap->getBySymb($symb);
498: if (ref($res)) {
1.528 raeburn 499: $partlist = $res->parts();
1.495 raeburn 500: if (ref($partlist) eq 'ARRAY') {
501: foreach my $part (@{$partlist}) {
502: my @types = $res->responseType($part);
503: my @ids = $res->responseIds($part);
504: for (my $i=0; $i < scalar(@ids); $i++) {
505: if ($types[$i] eq 'essay') {
506: my $partid = $part.'_'.$ids[$i];
507: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
508: $needs_upload = 1;
509: last;
510: }
1.493 raeburn 511: }
512: }
513: }
1.495 raeburn 514: }
515: }
1.493 raeburn 516: }
517: }
518: }
519: }
1.495 raeburn 520: if ($needs_upload) {
1.538 musolffc 521: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
522: .'<script type="text/javascript"
523: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 524: }
1.478 raeburn 525: }
1.425 raeburn 526:
1.344 albertel 527: my %body_args;
528: if (defined($found{'html'})) {
529: $body_args{'skip_phases'}{'head'}=1;
530: } else {
1.343 albertel 531:
1.345 albertel 532: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 533:
1.379 albertel 534: $extra_head .= &Apache::londefdef::generate_css_links();
535:
1.384 albertel 536: if ($env{'request.state'} eq 'construct') {
1.343 albertel 537: $extra_head.=&Apache::edit::js_change_detection().
538: "<script type=\"text/javascript\">\n".
539: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
540: &Apache::loncommon::browser_and_searcher_javascript().
541: "\n</script>\n";
1.525 raeburn 542: if ($target eq 'edit') {
543: $extra_head .= &Apache::edit::js_update_linknum();
544: }
1.343 albertel 545: }
1.159 albertel 546: }
1.343 albertel 547:
1.446 bisitz 548: my $pageheader = '';
1.344 albertel 549: if (defined($found{'body'})) {
550: $body_args{'skip_phases'}{'body'}=1;
551: } elsif (!defined($found{'body'})
552: && $env{'request.state'} eq 'construct') {
1.343 albertel 553: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 554: unless ($env{'form.inhibitmenu'} eq 'yes') {
555: # Breadcrumbs for Authoring Space
556: &Apache::lonhtmlcommon::clear_breadcrumbs();
557: &Apache::lonhtmlcommon::add_breadcrumb({
558: 'text' => 'Authoring Space',
559: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
560: });
561: # breadcrumbs (and tools) will be created
562: # in start_page->bodytag->innerregister
1.460 droeschl 563:
1.450 bisitz 564: # FIXME Where are we?
1.542 raeburn 565: # &Apache::lonhtmlcommon::add_breadcrumb({
566: # 'text' => 'Problem Editing', # 'Problem Testing'
567: # 'href' => '',
568: # });
569: $pageheader = &Apache::loncommon::head_subbox(
570: &Apache::loncommon::CSTR_pageheader());
571: }
572: }
1.272 albertel 573: } elsif (!defined($found{'body'})) {
1.343 albertel 574: my %add_entries;
1.159 albertel 575: my $background=&Apache::lonxml::get_param('background',$parstack,
576: $safeeval);
1.343 albertel 577: if ($background ne '' ) {
578: $add_entries{'background'} = $background;
579: }
1.344 albertel 580:
1.290 albertel 581: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
582: $safeeval);
1.446 bisitz 583: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 584:
1.446 bisitz 585: $body_args{'bgcolor'} = $bgcolor;
586: # $body_args{'no_title'} = 1;
587: $body_args{'force_register'} = 1;
588: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 589: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 590: $body_args{'only_body'} = 1;
1.518 raeburn 591: } elsif ($target eq 'web') {
592: $body_args{'print_suppress'} = 1;
1.446 bisitz 593: }
1.344 albertel 594: }
1.365 albertel 595: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 596: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
597: \%body_args);
1.446 bisitz 598: $page_start .= $pageheader;
1.462 raeburn 599: if (!defined($found{'body'})
600: && $env{'request.state'} ne 'construct'
601: && ($target eq 'web' || $target eq 'webgrade')) {
602:
603: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
604: if ($symb eq '' && !$publicuser) {
605: $page_start .= '<p class="LC_info">'
606: .&mt('Browsing resource, all submissions are temporary.')
607: .'</p>';
1.457 bisitz 608: }
1.344 albertel 609: }
610:
1.409 albertel 611: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 612: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 613: }
614: my $form_tag_start;
615: if (!defined($found{'form'})) {
1.337 albertel 616: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 617: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 618: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 619: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 620: $form_tag_start.=$uri.'" ';
621: if ($target eq 'edit') {
622: $form_tag_start.=&Apache::edit::form_change_detection();
623: }
1.493 raeburn 624: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
625: my ($path,$multiresp) =
626: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 627: if (($is_task) || ($needs_upload)) {
628: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 629: }
1.368 albertel 630: $form_tag_start.='>'."\n";
1.355 albertel 631:
632: if ($symb =~ /\S/) {
633: $symb=
634: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
635: $form_tag_start.=
1.368 albertel 636: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 637: }
1.159 albertel 638: }
1.528 raeburn 639: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 640: }
641:
1.141 matthew 642: #use Time::HiRes();
1.105 albertel 643: sub get_resource_name {
1.159 albertel 644: my ($parstack,$safeeval)=@_;
1.388 foxr 645: my $name;
1.204 albertel 646: if (defined($Apache::lonhomework::name)) {
1.388 foxr 647: $name = $Apache::lonhomework::name;
648: } else {
649: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 650: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 651: if ($name eq '') {
652: $name=&Apache::lonnet::EXT('resource.title');
653: if ($name eq 'con_lost') { $name = ''; }
654: }
655: if ($name!~/\S+/) {
656: $name=$env{'request.uri'};
657: $name=~s-.*/([^/]+)$-$1-;
658: }
659: # The name has had html tags escaped:
660:
661: $name=~s/</</gs;
662: $name=~s/>/>/gs;
663:
664: $Apache::lonhomework::name=$name;
1.204 albertel 665: }
1.159 albertel 666: return $name;
1.105 albertel 667: }
668:
669: sub setup_rndseed {
1.528 raeburn 670: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 671: my ($symb)=&Apache::lonnet::whichuser();
1.564 raeburn 672: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 673: if ($target eq 'analyze') {
674: $questiontype = $env{'form.grade_questiontype'};
675: }
676: unless (defined($questiontype)) {
677: $questiontype = $Apache::lonhomework::type;
678: }
1.564 raeburn 679: if ($Apache::lonhomework::type eq 'randomizetry') {
680: my $partfortries = $Apache::inputtags::part;
1.568 raeburn 681: #
682: # Where question type is "randomizetry" for a problem containing
683: # a single part (and unless type is explicitly set to not be
684: # "randomizetry" for that part), the number of tries used to
685: # determine randomization will be for that part, and randomization
686: # from calls to &random() in a perl script block before the part tag,
687: # will change based on the number of tries, and value of the
688: # "randomizeontries" parameter in effect for the single part.
689: #
1.564 raeburn 690: if (ref($probpartlist) eq 'ARRAY') {
1.568 raeburn 691: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
692: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.566 raeburn 693: $partfortries = $probpartlist->[0];
694: } else {
695: $partfortries = '';
696: }
1.564 raeburn 697: }
698: }
1.566 raeburn 699: if ($partfortries ne '') {
700: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
701: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
702: }
1.564 raeburn 703: }
1.555 raeburn 704: if (($env{'request.state'} eq "construct")
705: || ($symb eq '')
706: || ($Apache::lonhomework::type eq 'practice')
707: || ($Apache::lonhomework::history{'resource.CODE'})
708: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 709: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 710: ['rndseed']);
1.284 albertel 711: $rndseed=$env{'form.rndseed'};
1.159 albertel 712: if (!$rndseed) {
1.162 albertel 713: $rndseed=$Apache::lonhomework::history{'rndseed'};
714: if (!$rndseed) {
715: $rndseed=time;
716: }
1.555 raeburn 717: unless ($env{'form.code_for_randomlist'}) {
718: $env{'form.rndseed'}=$rndseed;
719: }
1.162 albertel 720: }
1.565 raeburn 721: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 722: ($Apache::lonhomework::type eq 'randomizetry')) {
1.564 raeburn 723: if ($numtries) {
724: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
725: my $inc = int($numtries/$reqtries);
726: $rndseed += $inc;
727: } else {
728: $rndseed += $numtries;
729: }
1.479 raeburn 730: }
1.480 raeburn 731: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 732: }
1.551 damieng 733: if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 734: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 735: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 736: srand(time);
737: $rndseed=int(rand(2100000000));
1.284 albertel 738: $env{'form.rndseed'}=$rndseed;
739: delete($env{'form.resetdata'});
740: delete($env{'form.newrandomization'});
1.159 albertel 741: }
1.488 www 742: $rndseed=~s/\,/\:/g;
743: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 744: if (defined($rndseed)) {
745: my ($c1,$c2)=split(/\:/,$rndseed);
746: unless ($c2) { $c2=0; }
747: unless (($c1==int($c1)) && ($c2==int($c2))) {
748: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
749: }
1.187 albertel 750: }
1.555 raeburn 751: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
752: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
753: $rndseed=&Apache::lonnet::rndseed();
754: undef($env{'form.CODE'});
755: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 756: $rndseed=&Apache::lonnet::rndseed();
757: }
1.479 raeburn 758: $set_safespace = 1;
759: } elsif ($questiontype eq 'randomizetry') {
760: if ($target eq 'analyze') {
761: if (defined($env{'form.grade_rndseed'})) {
762: $rndseed = $env{'form.grade_rndseed'};
763: }
764: }
765: unless (($target eq 'analyze') && (defined($rndseed))) {
766: $rndseed=&Apache::lonnet::rndseed();
1.564 raeburn 767: my $curr_try = $numtries;
1.479 raeburn 768: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
769: $curr_try ++;
770: }
771: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
772: $rndseed = $1;
773: }
774: if ($curr_try) {
775: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
776: my $inc = int(($curr_try-1)/$reqtries);
777: $rndseed += $inc;
778: } else {
779: $rndseed += $curr_try;
780: }
781: }
782: }
783: $set_safespace = 1;
1.528 raeburn 784: if ($target eq 'grade') {
785: $Apache::lonhomework::rawrndseed = $rndseed;
786: }
1.479 raeburn 787: }
788: if ($set_safespace) {
789: if ($safeeval) {
790: &Apache::lonxml::debug("Setting rndseed to $rndseed");
791: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.569 ! raeburn 792: my $prevparttype;
! 793: if (@Apache::inputtags::partlist > 1) {
! 794: $prevparttype = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[-2].type");
! 795: }
! 796: if (($Apache::lonhomework::type eq 'randomizetry') || ($prevparttype eq 'randomizetry')) {
! 797: &Apache::lonxml::debug("Setting randomizetrypart to $Apache::inputtags::part");
! 798: &Apache::run::run('$external::randomizetrypart="'.$Apache::inputtags::part.'";',$safeeval);
! 799: }
1.479 raeburn 800: }
801: }
802: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
803: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 804: }
805: return $rndseed;
1.105 albertel 806: }
807:
1.268 albertel 808: sub remember_problem_state {
809: return '
1.284 albertel 810: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
811: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
812: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 813: }
814:
1.487 www 815: sub problem_edit_action_button {
816: my ($name,$action,$accesskey,$text,$flag)=@_;
817: my $actionscript="setmode(this.form,'$action')";
818: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
819: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
820: }
821:
1.423 www 822: sub problem_edit_buttons {
1.487 www 823: my ($mode)=@_;
1.535 droeschl 824: # Buttons that save
825: my $result = '<div style="float:right">';
826: if ($mode eq 'editxml') {
827: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
828: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
829: } else {
830: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
831: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
832: }
833: $result.="\n</div>\n";
1.487 www 834: # Buttons that do not save
1.535 droeschl 835: $result .= '<div>'.
1.487 www 836: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
837: if ($mode eq 'editxml') {
838: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
839: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 840: if ($env{'environment.nocodemirror'}) {
841: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
842: }
1.487 www 843: } else {
844: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
845: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
846: }
847: $result.="\n</div>";
848: return $result;
1.423 www 849: }
850:
851: sub problem_edit_header {
1.527 golterma 852: my ($mode)=@_;
853: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 854: &remember_problem_state('edit').'
1.527 golterma 855: <div class="LC_edit_problem_header">
856: <div class="LC_edit_problem_header_title">
857: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
858: </div><div class="LC_edit_actionbar" id="actionbar">'.
859: '<input type="hidden" name="problemmode" value="saveedit" />'.
860: &problem_edit_buttons();
861:
1.535 droeschl 862: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 863: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
864: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
865:
866: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
867: <script type="text/javascript">
868: // unless internet explorer
869: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
870: $(document).ready(
871: function() {
872: $(\'.LC_edit_actionbar\').scrollToFixed(
873: {
874: fixed: function(){
1.535 droeschl 875: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
876: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 877: }
878: }
879: );
880: }
881: );
882: }
883: </script>
884: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
885: return $return;
1.105 albertel 886: }
887:
888: sub problem_edit_footer {
1.527 golterma 889: my $resource = $env{'request.ambiguous'};
1.412 albertel 890: return '</td></tr></table><br />
891: <div class="LC_edit_problem_footer">
1.453 bisitz 892: <hr />'.
1.423 www 893: &problem_edit_buttons().'
1.459 bisitz 894: <hr style="clear:both;" />
1.527 golterma 895: <script type="text/javascript">
896: restoreState("'.$resource.'");
897: restoreScrollPosition("'.$resource.'");
898: </script>
1.412 albertel 899: </div>
900: '.
1.342 albertel 901: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 902: }
903:
1.235 albertel 904: sub option {
905: my ($value,$name) = @_;
906: my $result ="<option value='".$value."' ";
1.284 albertel 907: if ($env{'form.'.$name} eq $value) {
1.235 albertel 908: $result.=" selected='on' ";
909: }
910: $result.='>';
911: return $result;
912: }
913:
1.105 albertel 914: sub problem_web_to_edit_header {
1.159 albertel 915: my ($rndseed)=@_;
1.406 albertel 916: my $result .= '<div class="LC_edit_problem_header">';
917:
918: if (!$Apache::lonhomework::parsing_a_task) {
919: $result .=
920: '<div class="LC_edit_problem_header_title">'.
921: &mt('Problem Testing').
922: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
923: '</div>';
924: } else {
925: $result .=
926: '<div class="LC_edit_problem_header_title">'.
927: &mt('Task Testing').
928: '</div>';
929: }
930:
1.315 albertel 931: my $show_all_foils_text =
932: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 933: &mt('Show All Instances')
934: : &mt('Show All Foils');
1.315 albertel 935:
1.452 bisitz 936: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
937: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 938: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 939: $show_all.= ' /> '.$show_all_foils_text
940: .'</label></span>';
1.406 albertel 941:
942:
1.384 albertel 943:
1.406 albertel 944: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 945: if (!$Apache::lonhomework::parsing_a_task) {
946: $result.="
1.406 albertel 947: <div class='LC_edit_problem_header_row1'>
948: <span class=\"LC_nobreak\">
1.405 albertel 949: ".&mt("Problem Status:")."
1.235 albertel 950: <select name='problemstate'>
1.270 albertel 951: <option value=''></option>
1.235 albertel 952: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
953: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
954: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
955: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
956: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
957: </select>
1.406 albertel 958: </span>
959: <span class=\"LC_nobreak\">
1.405 albertel 960: ".&mt("Problem Type:")."
1.235 albertel 961: <select name='problemtype'>
1.270 albertel 962: <option value=''></option>
1.509 bisitz 963: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 964: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 965: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 966: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
967: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
968: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 969: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 970: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 971: </select>
1.406 albertel 972: </span>
973: $show_all
974: </div>
975: <div class='LC_edit_problem_header_row2'>
976: <span class=\"LC_nobreak\">
1.405 albertel 977: ".&mt("Feedback Mode:")."
1.235 albertel 978: <select name='problemstatus'>
979: <option value=''></option>
1.242 albertel 980: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 981: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 982: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 983: </select>
1.406 albertel 984: </span>
985: ";
986:
1.376 albertel 987: } elsif ($Apache::lonhomework::parsing_a_task) {
988: $result.="
1.406 albertel 989: <div class='LC_edit_problem_header_row1'>
990: <span class=\"LC_nobreak\">
1.405 albertel 991: ".&mt("Problem Status:")."
1.376 albertel 992: <select name='problemstate'>
993: <option value=''></option>
994: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
995: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
996: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
997: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
998: </select>
1.406 albertel 999: </span>
1000: $show_all
1001: ";
1002: }
1003: $result.='
1004: <span class="LC_nobreak">
1005: '.&mt('Apply style file: ').'
1006: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
1007: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1008: </span>
1.422 www 1009: </div>
1010: <div class="LC_edit_problem_header_row1">'.
1011: &Apache::lonxml::renderingoptions().'
1.406 albertel 1012: </div>
1013: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1014: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 1015: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
1016: '.&mt('Reset Submissions').'</button>
1.406 albertel 1017: </div>
1.453 bisitz 1018: <hr />
1.406 albertel 1019: <div class="LC_edit_problem_header_randomize_row">
1020: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1021: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1022: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1023: $rndseed.'"
1024: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1025:
1026: if (!$Apache::lonhomework::parsing_a_task) {
1027: my $numtoanalyze=$env{'form.numtoanalyze'};
1028: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1029: $result .= '<span class="LC_nobreak">'.
1030: &mt('[_1] for [_2] versions.',
1.416 raeburn 1031: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1032: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1033: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1034: $numtoanalyze.'" size="5" />').
1035: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1036: '</span>';
1037:
1.313 albertel 1038: }
1.406 albertel 1039:
1040: $result.='
1041: </div>
1.453 bisitz 1042: <hr />
1.447 bisitz 1043: <div>';
1.416 raeburn 1044: $result.='<input type="hidden" name="problemmode" value="view" />';
1045: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1046: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1047: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1048: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1049: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1050: my $uri = $env{'request.uri'};
1.543 damieng 1051: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1052: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1053: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1054: }
1.408 albertel 1055: $result.='
1056: </div>
1.453 bisitz 1057: <hr />
1.409 albertel 1058: '.&Apache::lonxml::message_location().'
1.406 albertel 1059: </div>';
1.159 albertel 1060: return $result;
1.48 albertel 1061: }
1062:
1.65 albertel 1063: sub initialize_storage {
1.357 albertel 1064: my ($given_symb) = @_;
1.353 albertel 1065: undef(%Apache::lonhomework::results);
1066: undef(%Apache::lonhomework::history);
1.357 albertel 1067: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1068: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1069:
1070: # anonymous users (CODEd exams) have no data
1071: if ($name eq 'anonymous'
1072: && !defined($domain)) {
1073: return;
1074: }
1075:
1.333 albertel 1076: if ($env{'request.state'} eq 'construct'
1077: || $symb eq ''
1078: || $Apache::lonhomework::type eq 'practice') {
1079:
1080: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1081: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1082: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1083: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1084: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1085: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1086: &Apache::lonxml::debug("Attempt reset");
1087: }
1.159 albertel 1088: %Apache::lonhomework::history=
1.333 albertel 1089: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1090: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1091: &Apache::lonxml::debug("Return message of $temp");
1092: } else {
1093: %Apache::lonhomework::history=
1094: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1095: }
1.353 albertel 1096:
1.159 albertel 1097: #ignore error conditions
1.526 raeburn 1098: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1099: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1100: }
1101:
1.435 jms 1102: =pod
1103:
1104: =item finalize_storage()
1105:
1.524 raeburn 1106: Stores away the result hash to a student's environment;
1.523 raeburn 1107: checks form.grade_ for specific values, otherwise stores
1108: to the running user's environment.
1.524 raeburn 1109:
1110: &check_correctness_changes() is called in two circumstances
1111: in which the results hash is to be stored permanently, for
1112: grading triggered by a student's submission, where feedback on
1113: correctness is to be provided to the student.
1114:
1115: 1. Immediately prior to storing the results hash
1116:
1117: To handle the case where a student's submission (and award) were
1118: stored after history was retrieved in &initialize_storage(), e.g.,
1119: if a student submitted answers in quick succession (e.g., from
1120: multiple tabs). &Apache::inputtags::hidealldata() is called for
1121: any parts with out-of-order storage (i.e., correct then incorrect,
1122: where awarded >= 1 when correct).
1123:
1124: 2. Immediately after storing the results hash
1125:
1126: To handle the case where lond on the student's homeserver returns
1127: delay:N -- where N is the number of transactions between the last
1128: retrieved in &initialize_storage() and the last stored immediately
1129: before permanent storage of the current transaction via
1130: lond::store_handler(). &Apache::grades::makehidden() is called
1131: for any parts with out-of-order storage (i.e., correct then incorrect,
1132: where awarded >= 1 when correct).
1133:
1134: Will call &store_aggregates() to increment totals for attempts,
1135: students, and corrects, if running user has student role.
1136:
1.435 jms 1137: =cut
1138:
1139:
1.65 albertel 1140: sub finalize_storage {
1.357 albertel 1141: my ($given_symb) = @_;
1.159 albertel 1142: my $result;
1.289 albertel 1143: if (%Apache::lonhomework::results) {
1.323 albertel 1144: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1145: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1146: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1147: &Apache::lonnet::whichuser($given_symb);
1.562 raeburn 1148: my ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref,$total,$possible,$dopassback);
1.333 albertel 1149: if ($env{'request.state'} eq 'construct'
1150: || $symb eq ''
1151: || $Apache::lonhomework::type eq 'practice') {
1152: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1153: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1154: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1155: $namespace,'',$domain,$name);
1.159 albertel 1156: &Apache::lonxml::debug('Construct Store return message:'.$result);
1157: } else {
1.560 raeburn 1158: my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.524 raeburn 1159: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1160: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1161: (!defined($env{'form.grade_courseid'}))) {
1.560 raeburn 1162: if ($env{'request.lti.login'}) {
1163: my ($map)=&Apache::lonnet::decode_symb($symb);
1164: $map = &Apache::lonnet::clutter($map);
1165: ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref) =
1166: &needs_lti_passback($courseid,$symb,$map);
1167: }
1.524 raeburn 1168: if ($Apache::lonhomework::history{'version'}) {
1169: $laststore = $Apache::lonhomework::history{'version'}.'='.
1170: $Apache::lonhomework::history{'timestamp'};
1171: } else {
1172: $laststore = '0=0';
1173: }
1.560 raeburn 1174: %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.524 raeburn 1175: if ($record{'version'}) {
1176: my ($newversion,$oldversion,$oldtimestamp);
1177: if ($Apache::lonhomework::history{'version'}) {
1178: $oldversion = $Apache::lonhomework::history{'version'};
1179: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1180: } else {
1181: $oldversion = 0;
1182: $oldtimestamp = 0;
1183: }
1184: if ($record{'version'} > $oldversion) {
1185: if ($record{'timestamp'} >= $oldtimestamp) {
1186: $laststore = $record{'version'}.'='.$record{'timestamp'};
1187: $newversion = $record{'version'} + 1;
1188: $checkedparts = 1;
1189: foreach my $key (keys(%Apache::lonhomework::results)) {
1190: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1191: my $part = $1;
1192: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1193: push(@parts,$part);
1194: }
1195: }
1196: }
1197: if (@parts) {
1198: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1199: \%record,\@parts,$newversion,
1200: $oldversion);
1201: if (@parts_to_hide) {
1202: foreach my $part (@parts_to_hide) {
1203: $postcorrect{$part} = 1;
1204: &Apache::inputtags::hidealldata($part);
1205: }
1206: }
1207: }
1208: }
1209: }
1210: }
1211: }
1.159 albertel 1212: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1213: $symb,$courseid,$domain,$name,$laststore);
1214: if ($result =~ /^delay\:(\d+)$/) {
1215: my $numtrans = $1;
1216: my ($oldversion) = split(/=/,$laststore);
1217: if ($numtrans) {
1218: my $newversion = $oldversion + 1 + $numtrans;
1219: my @possparts;
1220: if ($checkedparts) {
1221: foreach my $part (@parts) {
1222: unless ($postcorrect{$part}) {
1223: push(@possparts,$part);
1224: }
1225: }
1226: } else {
1227: foreach my $key (keys(%Apache::lonhomework::results)) {
1228: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1229: my $part = $1;
1230: unless ($postcorrect{$part}) {
1231: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1232: push(@possparts,$part);
1233: }
1234: }
1235: }
1236: }
1237: }
1238: if (@possparts) {
1239: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1240: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1241: \%newrecord,\@possparts,$newversion,
1242: $oldversion);
1243: if (@parts_to_hide) {
1244: my $partslist = join(',',@parts_to_hide);
1245: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1246: }
1247: }
1248: }
1249: }
1.562 raeburn 1250: if ($passback) {
1251: foreach my $key (keys(%Apache::lonhomework::results)) {
1252: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1253: my $part = $1;
1254: if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1255: ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1256: ($Apache::lonhomework::results{"resource.$part.tries"})) {
1257: $dopassback = 1;
1258: last;
1259: }
1260: }
1261: }
1262: }
1263: if (($dopassback) && ($ltiscope eq 'resource') && ($ltisymb eq $symb)) {
1.560 raeburn 1264: $total = 0;
1265: $possible = 0;
1266: my $navmap = Apache::lonnavmaps::navmap->new();
1267: if (ref($navmap)) {
1268: my $res = $navmap->getBySymb($symb);
1269: if (ref($res)) {
1270: my $partlist = $res->parts();
1271: if (ref($partlist) eq 'ARRAY') {
1272: foreach my $part (@{$partlist}) {
1273: unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1274: next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1275: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1276: $possible += $weight;
1277: if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1278: my $awarded = $record{"resource.$part.awarded"};
1279: if ($awarded) {
1280: $total += $weight * $awarded;
1281: }
1282: }
1283: }
1284: }
1285: }
1286: }
1287: }
1288: foreach my $key (keys(%Apache::lonhomework::results)) {
1289: if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1290: my $part = $1;
1291: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1292: $possible += $weight;
1293: my $awarded = $Apache::lonhomework::results{$key};
1294: if ($awarded) {
1295: $total += $weight * $awarded;
1296: }
1297: }
1298: }
1299: }
1.159 albertel 1300: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1301: &store_aggregates($symb,$courseid);
1.562 raeburn 1302: if ($dopassback) {
1.560 raeburn 1303: my $scoreformat = 'decimal';
1304: if (ref($ltiref) eq 'HASH') {
1305: if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1306: $scoreformat = $1;
1307: }
1308: }
1309: my $ltigrade = {
1310: 'lti' => $ltiref,
1311: 'cid' => $courseid,
1312: 'uname' => $env{'user.name'},
1313: 'udom' => $env{'user.domain'},
1314: 'pbid' => $env{'request.lti.passbackid'},
1315: 'pburl' => $env{'request.lti.passbackurl'},
1316: 'scope' => $ltiscope,
1317: 'ltimap' => $ltimap,
1318: 'ltisymb' => $ltisymb,
1319: 'format' => $scoreformat,
1320: };
1321: if ($ltiscope eq 'resource') {
1322: $ltigrade->{'total'} = $total;
1323: $ltigrade->{'possible'} = $possible;
1324: }
1325: push(@Apache::lonhomework::ltipassback,$ltigrade);
1326: }
1.159 albertel 1327: }
1.323 albertel 1328: } else {
1329: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1330: }
1.159 albertel 1331: return $result;
1.65 albertel 1332: }
1333:
1.560 raeburn 1334: sub needs_lti_passback {
1335: my ($courseid,$symb,$map) = @_;
1336: if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1337: if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1338: my ($cdom,$cnum) = ($1,$2);
1339: my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1340: if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1341: if ($lti{$env{'request.lti.login'}}{'passback'}) {
1342: my ($ltiscope,$ltiuri,$ltisymb) =
1343: &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1344: $cdom,$cnum,1);
1345: my ($passback,$ltimap);
1346: if ($ltiscope eq 'resource') {
1347: if ($ltisymb eq $symb) {
1348: $passback = 1;
1349: }
1350: } elsif ($ltiscope eq 'map') {
1351: if ($ltiuri eq $map) {
1352: $passback = 1;
1353: $ltimap = $map;
1354: }
1355: } elsif ($ltiscope eq 'course') {
1356: if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1357: $passback = 1;
1358: }
1359: }
1360: return ($passback,$ltiscope,$ltimap,$ltisymb,$lti{$env{'request.lti.login'}});
1361: }
1362: }
1363: }
1364: }
1365: return;
1366: }
1367:
1.435 jms 1368: =pod
1369:
1.524 raeburn 1370: =item check_correctness_changes()
1371:
1372: For all parts for which current results contain a solved status
1373: of "incorrect_attempted", check if there was a transaction in which
1374: solved was set to "correct_by_student" in the time since the last
1375: transaction (retrieved when &initialize_storage() was called i.e.,
1376: when &start_problem() was called), unless:
1377: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1378: (b) problemstatus is set to no or no_feedback_ever
1379: If such a transaction exists, and did not occur after "reset status"
1380: by a user with grading privileges, then the current transaction is an
1381: example of an out-of-order transaction (i.e., incorrect occurring after
1382: correct). Accordingly, the current transaction should be hidden.
1383:
1384: =cut
1385:
1386:
1387: sub check_correctness_changes {
1388: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1389: my @parts_to_hide;
1390: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1391: return @parts_to_hide;
1392: }
1393: if (@{$parts}) {
1394: my $usec;
1395: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1396: ($env{'request.course.id'} eq $courseid)) {
1397: $usec = $env{'request.course.sec'};
1398: } else {
1399: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1400: }
1401: foreach my $id (@{$parts}) {
1402: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1403: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1404: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1405: my $reset;
1406: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1407: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1408: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1409: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1410: $reset = 1;
1411: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1412: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1413: unless ($reset) {
1414: push(@parts_to_hide,$id);
1415: last;
1416: }
1417: }
1418: }
1419: }
1420: }
1421: return @parts_to_hide;
1422: }
1423:
1424: =pod
1425:
1.435 jms 1426: item store_aggregates()
1427:
1428: Sends hash of values to be incremented in nohist_resourcetracker.db
1429: for the course. Increments total number of attempts, unique students
1430: and corrects for each part for an instance of a problem, as appropriate.
1431:
1432: =cut
1433:
1.285 raeburn 1434: sub store_aggregates {
1435: my ($symb,$courseid) = @_;
1.479 raeburn 1436: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1437: my @parts;
1.288 albertel 1438: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1439: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1440: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1441: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1442: push(@parts, $1);
1.285 raeburn 1443: }
1444: }
1.286 albertel 1445: foreach my $part (@parts) {
1.470 raeburn 1446: if ($env{'request.role'} =~/^st/) {
1447: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1448: eq 'APPROX_ANS' ||
1449: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1450: eq 'EXACT_ANS') {
1451: $aggregate{$symb."\0".$part."\0correct"} = 1;
1452: }
1453: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1454: $aggregate{$symb."\0".$part."\0users"} = 1;
1455: } else {
1456: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1457: if ($last_reset) {
1458: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1459: $aggregate{$symb."\0".$part."\0users"} = 1;
1460: }
1461: }
1462: }
1463: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1464: }
1.470 raeburn 1465: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1466: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1467: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1468: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1469: $randtrycounter{$symb."\0".$part} = 1;
1470: } else {
1471: $anoncounter{$symb."\0".$part} = 1;
1472: }
1.545 raeburn 1473: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1474: if ($needsrelease) {
1.470 raeburn 1475: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1476: if ($curr_required eq '') {
1.471 raeburn 1477: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1478: } else {
1479: my ($currmajor,$currminor) = split(/\./,$curr_required);
1480: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1481: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1482: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1483: }
1.292 raeburn 1484: }
1485: }
1.285 raeburn 1486: }
1487: }
1.526 raeburn 1488: if (keys(%aggregate) > 0) {
1.289 albertel 1489: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1490: $cdomain,$cname);
1491: }
1.472 raeburn 1492: if (keys(%anoncounter) > 0) {
1.481 raeburn 1493: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1494: $cdomain,$cname);
1.472 raeburn 1495: }
1.479 raeburn 1496: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1497: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1498: $cdomain,$cname);
1.479 raeburn 1499: }
1.292 raeburn 1500: }
1.289 albertel 1501:
1.557 raeburn 1502: sub access_status_msg {
1503: my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1504: my $msg;
1505: if ($target eq 'web') {
1506: if ($status eq 'UNAVAILABLE') {
1507: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1508: } elsif ($status eq 'NOT_IN_A_SLOT') {
1509: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1510: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1511: ($status eq 'NOTRESERVABLE')) {
1512: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1513: } elsif ($status ne 'NOT_YET_VIEWED') {
1514: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1515: }
1516: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1517: $msg.=&mt('The problem ').$accessmsg;
1518: } elsif ($status eq 'UNCHECKEDOUT') {
1519: $msg.=&checkout_msg();
1520: } elsif ($status eq 'NOT_YET_VIEWED') {
1521: $msg.=&firstaccess_msg($accessmsg,$symb);
1522: } elsif ($status eq 'NOT_IN_A_SLOT') {
1523: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1524: } elsif ($status eq 'RESERVABLE') {
1525: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1526: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1527: '<br />'.
1528: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1529: } elsif ($status eq 'RESERVABLE_LATER') {
1530: $msg.=&mt('Window to make a reservation will open [_1].',
1531: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1532: } elsif ($status eq 'NOTRESERVABLE') {
1533: $msg.=&mt('Not available to make a reservation.');
1534: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1535: if ($ipused) {
1536: $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");
1537: } else {
1538: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1539: &mt('Somebody else has already used this particular computer for that purpose.');
1540: }
1541: }
1542: $msg.='<br />';
1543: } elsif ($target eq 'tex') {
1544: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1545: : '\begin{minipage}{\textwidth}';
1546:
1547: $msg ='\noindent \vskip 1 mm '.
1548: $startminipage.'\vskip 0 mm';
1549: if ($status eq 'UNAVAILABLE') {
1550: $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1551: } else {
1552: $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1553: }
1554: }
1555: return $msg;
1556: }
1557:
1558: sub checkin_prompt {
1559: my ($target,$slot_name,$slot,$type) = @_;
1560: my $result;
1561: if ($target eq 'web') {
1562: $result = &Apache::bridgetask::proctor_validation_screen($slot);
1563: } elsif ($target eq 'grade') {
1564: if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1565: $result = &mt('An error occurred during check-in');
1566: }
1567: }
1568: return $result;
1569: }
1570:
1571: sub selfcheckin_resource {
1572: my ($resource_due,$slot_name,$slot,$symb) = @_;
1573: if ($slot_name ne '') {
1574: my $checked_in =
1575: $Apache::lonhomework::history{'resource.0.checkedin'};
1576: if ($checked_in eq '') {
1577: # unproctored slot access, self checkin
1578: my $needsiptied;
1579: if (ref($slot)) {
1580: $needsiptied = $slot->{'iptied'};
1581: }
1582: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1583: $slot_name,$needsiptied);
1584: if ($check =~ /^error: /) {
1585: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1586: } else {
1587: $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1588: }
1589: }
1590: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1591: if ($slot->{'starttime'} < time()) {
1592: if (!$resource_due) {
1593: $resource_due = $slot->{'endtime'};
1594: } elsif ($slot->{'endtime'} < $resource_due) {
1595: $resource_due = $slot->{'endtime'};
1596: }
1597: }
1598: }
1599: }
1600: return $resource_due;
1601: }
1602:
1.65 albertel 1603: sub checkout_msg {
1.211 albertel 1604: my %lt=&Apache::lonlocal::texthash(
1605: 'resource'=>'The resource needs to be checked out',
1606: '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.',
1607: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1608: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1609: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1610: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1611: return (<<ENDCHECKOUT);
1.211 albertel 1612: <h2>$lt{'resource'}</h2>
1613: <p>$lt{'id_expln'}</p>
1.449 bisitz 1614: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1615: <form name="checkout" method="post" action="$uri">
1.91 albertel 1616: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1617: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1618: </form>
1619: ENDCHECKOUT
1620: }
1621:
1.252 albertel 1622: sub firstaccess_msg {
1.253 albertel 1623: my ($time,$symb)=@_;
1.414 albertel 1624: my $result;
1625: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1626: if ($interval[1] eq 'map') {
1627: my ($map)=&Apache::lonnet::decode_symb($symb);
1628: my $foldertitle=&Apache::lonnet::gettitle($map);
1629:
1630: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1631: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1632: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1633: ,$foldertitle,$time)."</p>";
1.414 albertel 1634: } elsif ($interval[1] eq 'course') {
1635: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1636: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1637: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1638: ,$course,$time)."</p>";
1.414 albertel 1639: } else {
1640: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1641: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1642: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1643: ,$title,$time)."</p>";
1.414 albertel 1644: }
1.352 albertel 1645: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1646: my $buttontext = &mt('Show Resource');
1647: my $timertext = &mt('Start Timer?');
1.414 albertel 1648: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1649: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1650: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1651: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1652: </form>
1653: ENDCHECKOUT
1.414 albertel 1654: return $result;
1.252 albertel 1655: }
1656:
1.204 albertel 1657: sub init_problem_globals {
1658: my ($type)=@_;
1659: #initialize globals
1.308 foxr 1660: # For problems, we start out in part 0 (outside a <part> tag).
1661: # and part 0 is used to describe the main body of the <problem>
1662: #
1.204 albertel 1663: if ($type eq 'problem') {
1664: $Apache::inputtags::part='0';
1665: @Apache::inputtags::partlist=('0');
1.405 albertel 1666: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1667: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1668:
1.266 albertel 1669: } elsif ($type eq 'library') {
1.204 albertel 1670: $Apache::inputtags::part='';
1671: @Apache::inputtags::partlist=();
1.405 albertel 1672: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1673: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1674:
1.304 albertel 1675: } elsif ($type eq 'Task') {
1676: $Apache::inputtags::part='0';
1677: @Apache::inputtags::partlist=('0');
1.405 albertel 1678: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1679: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1680: }
1.477 www 1681: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1682: @Apache::inputtags::responselist = ();
1683: @Apache::inputtags::importlist = ();
1684: @Apache::inputtags::previous=();
1685: @Apache::inputtags::previous_version=();
1.536 raeburn 1686: $Apache::inputtags::leniency='';
1.204 albertel 1687: $Apache::structuretags::printanswer='No';
1688: @Apache::structuretags::whileconds=();
1689: @Apache::structuretags::whilebody=();
1690: @Apache::structuretags::whileline=();
1691: $Apache::lonhomework::scantronmode=0;
1.566 raeburn 1692: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1693: undef($Apache::lonhomework::name);
1.358 albertel 1694: undef($Apache::lonhomework::default_type);
1695: undef($Apache::lonhomework::type);
1.204 albertel 1696: }
1697:
1698: sub reset_problem_globals {
1699: my ($type)=@_;
1700: undef(%Apache::lonhomework::history);
1701: undef(%Apache::lonhomework::results);
1702: undef($Apache::inputtags::part);
1.536 raeburn 1703: undef($Apache::inputtags::leniency);
1.498 raeburn 1704: if ($type eq 'Task') {
1705: undef($Apache::inputtags::slot_name);
1.528 raeburn 1706: } elsif ($type eq 'problem') {
1707: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1708: }
1.208 albertel 1709: #don't undef this, lonhomework.pm takes care of this, we use this to
1710: #detect if we try to do 2 problems in one file
1711: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1712: undef($Apache::lonhomework::name);
1.358 albertel 1713: undef($Apache::lonhomework::default_type);
1714: undef($Apache::lonhomework::type);
1715: undef($Apache::lonhomework::scantronmode);
1.566 raeburn 1716: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1717: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1718: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1719: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1720: }
1721:
1.241 albertel 1722: sub set_problem_state {
1.240 albertel 1723: my ($part)=@_;
1.284 albertel 1724: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1725: $Apache::lonhomework::history{"resource.$part.solved"}=
1726: 'correct_by_student';
1727: }
1728: }
1729:
1.241 albertel 1730: sub get_problem_status {
1731: my ($part)=@_;
1.267 albertel 1732: my $problem_status;
1.284 albertel 1733: if ($env{'request.state'} eq 'construct' &&
1734: defined($env{'form.problemstatus'})) {
1735: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1736: } else {
1737: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1738: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1739: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1740: }
1741: return $problem_status;
1742: }
1743:
1.9 albertel 1744: sub start_problem {
1.326 albertel 1745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1746:
1.311 foxr 1747: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1748: if (!$Apache::lonxml::metamode) {
1749: &Apache::lonxml::startredirection();
1750: }
1.311 foxr 1751:
1.308 foxr 1752: # Problems don't nest and we don't allow more than one <problem> in
1753: # a .problem file.
1754: #
1.184 albertel 1755: if ( $Apache::inputtags::part ne '' ||
1756: $Apache::lonhomework::parsing_a_problem) {
1757: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1758: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1759: return '';
1760: }
1.184 albertel 1761:
1762: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1763: &init_problem_globals('problem');
1.166 albertel 1764:
1.284 albertel 1765: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1766: $Apache::lonhomework::scantronmode=1;
1767: }
1.161 albertel 1768:
1.159 albertel 1769: if ($target ne 'analyze') {
1.415 raeburn 1770: my $type = &Apache::lonnet::EXT('resource.0.type');
1771: $Apache::lonhomework::type=$type;
1.284 albertel 1772: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1773: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1774: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1775: }
1.332 albertel 1776: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1777: }
1.164 albertel 1778: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1779: my $uri=$env{'request.uri'};
1.159 albertel 1780: if ($uri=~/\.(\w+)$/) {
1781: $Apache::lonhomework::type=$1;
1782: &Apache::lonxml::debug("Using type of $1");
1783: } else {
1784: $Apache::lonhomework::type='problem';
1785: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1786: }
1.87 albertel 1787: }
1.301 albertel 1788: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1789:
1.363 albertel 1790: &initialize_storage();
1.389 albertel 1791: if ($target ne 'analyze'
1792: && $env{'request.state'} eq 'construct') {
1793: &set_problem_state('0');
1794: }
1795:
1.366 albertel 1796: if ($target eq 'web') {
1797: &Apache::lonxml::debug(" grading history ");
1798: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1799: }
1.363 albertel 1800:
1.159 albertel 1801: #added vars to the scripting enviroment
1.213 albertel 1802: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1803: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1804: &Apache::run::run($expression,$safeeval);
1.159 albertel 1805: my $status;
1806: my $accessmsg;
1.508 raeburn 1807: my $resource_due;
1.540 raeburn 1808: my $ipused;
1.159 albertel 1809:
1.343 albertel 1810: my $name= &get_resource_name($parstack,$safeeval);
1.561 raeburn 1811: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1812:
1813: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1814: $target eq 'tex') {
1815: if ($env{'form.markaccess'}) {
1816: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1817: my ($timelimit) = split(/_/,$interval[0]);
1.561 raeburn 1818: my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1819: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1820: $firstaccres = $is_set;
1821: }
1.506 raeburn 1822: }
1823: }
1824:
1.354 albertel 1825: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1826: || $target eq 'edit') {
1.528 raeburn 1827: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1828: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1829: $name);
1.552 raeburn 1830: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1831: ($target eq 'answer')) {
1.528 raeburn 1832: my ($symb)= &Apache::lonnet::whichuser();
1.568 raeburn 1833: if ($symb ne '') {
1834: my $navmap = Apache::lonnavmaps::navmap->new();
1835: if (ref($navmap)) {
1836: my $res = $navmap->getBySymb($symb);
1837: if (ref($res)) {
1838: $probpartlist = $res->parts();
1839: }
1.528 raeburn 1840: }
1841: }
1.350 albertel 1842: }
1843:
1.552 raeburn 1844: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1845: $target eq 'tex') {
1846:
1847: my ($symb)= &Apache::lonnet::whichuser();
1848: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1849: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1850: push (@Apache::inputtags::status,$status);
1851: }
1852:
1.284 albertel 1853: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1854:
1.479 raeburn 1855: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1856: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1857: $target eq 'tex') {
1.479 raeburn 1858:
1.568 raeburn 1859: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1860: #handle rand seed in construction space
1.568 raeburn 1861: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1862: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1863: if ($partorder ne '') {
1864: @{$probpartlist} = split(/,/,$partorder);
1865: }
1866: }
1.528 raeburn 1867: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1868: if (($target eq 'grade') && &Apache::response::submitted()) {
1869: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1870: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1871: } else {
1872: my @parts;
1873: if (ref($probpartlist) eq 'ARRAY') {
1874: @parts = @{$probpartlist};
1875: }
1876: unless (@parts) {
1.529 raeburn 1877: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1878: }
1879: }
1880: }
1.479 raeburn 1881:
1.333 albertel 1882: if ($env{'request.state'} ne "construct" &&
1883: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.565 raeburn 1884: my $rndseedval = $rndseed;
1885: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1886: $rndseedval = $env{'form.rndseed'};
1887: }
1.162 albertel 1888: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.565 raeburn 1889: $rndseedval.'" />'.
1.551 damieng 1890: '<button type="submit" name="resetdata"
1891: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1892: if (exists($env{'form.username'})) {
1893: $form_tag_start.=
1.164 albertel 1894: '<input type="hidden" name="username"
1.284 albertel 1895: value="'.$env{'form.username'}.'" />';
1.334 albertel 1896: }
1.462 raeburn 1897: if ($env{'request.role.adv'}) {
1898: $form_tag_start.= ' <label class="LC_nobreak">'
1899: .'<input type="checkbox" name="showallfoils"';
1900: if (defined($env{'form.showallfoils'})) {
1901: $form_tag_start.=' checked="checked"';
1902: }
1903: $form_tag_start.= ' /> '
1904: .&mt('Show All Foils')
1905: .'</label>';
1906: }
1.417 www 1907: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1908: $form_tag_start.=&practice_problem_header();
1.417 www 1909: }
1.462 raeburn 1910: $form_tag_start.='<hr />';
1.565 raeburn 1911: }
1912: if (($env{'request.state'} ne "construct") &&
1913: ($Apache::lonhomework::type eq 'randomizetry') &&
1914: ($status eq 'CAN_ANSWER') &&
1915: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1916: (!$env{'request.role.adv'})) {
1.549 raeburn 1917: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.566 raeburn 1918: my @parts;
1919: if (ref($probpartlist) eq 'ARRAY') {
1920: @parts = @{$probpartlist};
1921: }
1922: unless (@parts) {
1923: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1924: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1925: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1926: }
1.479 raeburn 1927: }
1.324 albertel 1928:
1.159 albertel 1929: my $expression='$external::datestatus="'.$status.'";';
1930: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1931: &Apache::run::run($expression,$safeeval);
1932: &Apache::lonxml::debug("Got $status");
1.324 albertel 1933:
1.159 albertel 1934: if (( $status eq 'CLOSED' ) ||
1935: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1936: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1937: ( $status eq 'BANNED') ||
1.216 albertel 1938: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1939: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1940: ( $status eq 'NOTRESERVABLE') ||
1941: ( $status eq 'RESERVABLE') ||
1942: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1943: ( $status eq 'INVALID_ACCESS') ||
1944: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1945: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1946: $style);
1.561 raeburn 1947: if (($status eq 'NOT_YET_VIEWED') && ($firstaccres)) {
1948: $result .= '<p class="LC_error">'.
1949: &mt('A problem occurred when trying to start the timer.').'</p>';
1950: }
1.557 raeburn 1951: $result .= &access_status_msg('problem',$status,$symb,$target,$ipused,$accessmsg);
1.324 albertel 1952: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1953: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1954: $style);
1.557 raeburn 1955: $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 1956: } elsif ($target eq 'web') {
1.508 raeburn 1957: if ($status eq 'CAN_ANSWER') {
1958: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1959: if ($slot_name ne '') {
1.557 raeburn 1960: $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
1961: $env{'request.symb'});
1.508 raeburn 1962: }
1963: if ($resource_due) {
1964: my $time_left = $resource_due - time();
1965: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1966: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1967: }
1968: }
1969: }
1.368 albertel 1970: $result.="\n $form_tag_start \t".
1.227 albertel 1971: '<input type="hidden" name="submitted" value="yes" />';
1972: # create a page header and exit
1.284 albertel 1973: if ($env{'request.state'} eq "construct") {
1.544 damieng 1974: if ($env{'form.inhibitmenu'} eq 'yes') {
1975: # error messages can be useful in any case
1976: $result.= &Apache::lonxml::message_location();
1977: } else {
1.542 raeburn 1978: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1979: }
1.428 raeburn 1980: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1981: $result.= '<button type="submit" name="resetdata" '.
1982: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1983: &practice_problem_header().'<hr />';
1.564 raeburn 1984: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1985: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1986: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1987: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1988: }
1.227 albertel 1989: }
1990: # if we are viewing someone else preserve that info
1.284 albertel 1991: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1992: foreach my $field ('symb','courseid','domain','username') {
1993: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1994: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1995: }
1.479 raeburn 1996: foreach my $field ('trial','questiontype') {
1997: if ($env{"form.grade_$field"} ne '') {
1998: $result .= '<input type="hidden" name="grade_'.$field.
1999: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
2000: }
2001: }
1.159 albertel 2002: }
1.490 raeburn 2003: if ($env{'form.grade_imsexport'}) {
2004: $result = '';
2005: }
1.159 albertel 2006: } elsif ($target eq 'tex') {
1.319 foxr 2007: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2008: $result .= &select_metadata_hyphenation();
1.99 sakharuk 2009: }
1.159 albertel 2010: } elsif ($target eq 'edit') {
1.343 albertel 2011: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2012: $Apache::lonxml::warnings_error_header=
2013: &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 2014: my $temp=&Apache::edit::insertlist($target,$token);
2015: $result.=$temp;
2016: } elsif ($target eq 'modified') {
2017: $result=$token->[4];
2018: } else {
2019: # page_start returned a starting result, delete it if we don't need it
2020: $result = '';
1.99 sakharuk 2021: }
1.159 albertel 2022: return $result;
1.9 albertel 2023: }
2024:
2025: sub end_problem {
1.159 albertel 2026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2027: my $result;
1.310 foxr 2028:
1.321 albertel 2029: if (!$Apache::lonxml::metamode) {
2030: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2031: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2032: }
1.319 foxr 2033:
2034: if ($target eq 'tex') {
1.321 albertel 2035: # Figure out the front matter and replace the
2036: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2037: # this in end_problem because whether or not we display due
2038: # dates depends on whether due dates have already been
2039: # displayed in the problem parts.
2040:
1.319 foxr 2041: my $frontmatter = '';
2042: my $startminipage = '';
2043: if (not $env{'form.problem_split'}=~/yes/) {
2044: $startminipage = '\begin{minipage}{\textwidth}';
2045: }
2046: my $id = $Apache::inputtags::part;
2047: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2048: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2049: my @packages = split(/,/,$packages);
1.319 foxr 2050: my $allow_print_points = 0;
2051: foreach my $partial_key (@packages) {
2052: if ($partial_key=~m/^part_0$/) {
2053: $allow_print_points=1;
2054: }
2055: }
2056: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2057: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2058: if (lc($env{'course.'.$env{'request.course.id'}.
2059: '.disableexampointprint'}) eq 'yes') {
2060: $allow_print_points=0;
2061: }
2062: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2063: 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 2064: &clear_required_languages();
1.319 foxr 2065: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2066: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2067:
2068: # Figure out what the due date is and if we need to print
2069: # it in the problem header. We have been logging the
2070: # last due date written to file.
2071:
2072: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2073: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2074: my $duedate_text = &mt('Due date: [_1]'
2075: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2076: my $temp_file;
2077: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2078:
2079: # Figure out what the last printed due date is or set it
2080: # to the epoch if no duedates have been printed.
2081:
2082: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2083: if (-e $filename) {
2084: $temp_file = Apache::File->new($filename);
2085: my @due_file = <$temp_file>;
2086: $due_file_content = $due_file[$#due_file];
2087: chomp $due_file_content;
2088: }
2089:
2090: # We display the due date iff it is not the same as the last
2091: # duedate in problem header ($due_file_content), and
2092: # none of our parts displayed a duedate.
2093: #
2094: my $parts_with_displayduedate;
2095: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2096: $parts_with_displayduedate =
2097: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2098: } else {
2099: $parts_with_displayduedate = 0;
2100: }
2101: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2102: $temp_file = Apache::File->new('>'.$filename);
2103: print $temp_file "$duetime\n";
2104: if (not $env{'request.symb'} =~ m/\.page_/) {
2105: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2106: $frontmatter .= $begin_doc.
1.448 bisitz 2107: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2108: } else {
2109: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2110: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2111: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2112: }
1.319 foxr 2113: }
2114: } else {
1.448 bisitz 2115: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2116: }
2117: } else {
2118: if (not $env{'request.symb'} =~ m/\.page_/) {
2119: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2120: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2121: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2122: }
1.319 foxr 2123: } else {
1.381 albertel 2124: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2125: }
2126: }
2127: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
2128: }
2129:
1.159 albertel 2130: my $status=$Apache::inputtags::status['-1'];
2131: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2132: $target eq 'tex') {
1.249 albertel 2133: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2134: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2135: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2136: &Apache::inputtags::grade;
1.324 albertel 2137: } elsif ($status eq 'NEEDS_CHECKIN') {
2138: # no need to grade, and don't want to hide data
1.249 albertel 2139: } else {
2140: # move any submission data to .hidden
2141: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2142: }
1.159 albertel 2143: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2144: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2145: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2146: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2147: # if part is zero, no <part>s existed, so we need show the current
2148: # grading status
2149: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2150: $result.= $gradestatus;
2151: }
2152: if (
1.284 albertel 2153: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2154: ($target eq 'answer') || ($target eq 'tex')
2155: ) {
1.490 raeburn 2156: if (($target ne 'tex') &&
2157: ($env{'form.answer_output_mode'} ne 'tex') &&
2158: (!$env{'form.grade_imsexport'})) {
1.254 www 2159: $result.="</form>";
1.159 albertel 2160: }
2161: if ($target eq 'web') {
1.507 raeburn 2162: #
2163: # Closing </body></html> not added by end_page().
2164: # Added separately at end of this routine, after added
2165: # <script></script> so document will be valid xhtml.
2166: #
1.546 raeburn 2167: my $showdisc = 1;
1.547 raeburn 2168: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
2169: (!$env{'request.role.adv'})) {
2170: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 2171: $showdisc = 0;
1.547 raeburn 2172: my ($symb)= &Apache::lonnet::whichuser();
2173: if ($symb) {
2174: my $navmap = Apache::lonnavmaps::navmap->new();
2175: if (ref($navmap)) {
2176: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
2177: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 2178: # and there are no tries left
1.547 raeburn 2179: unless ($hastries) {
2180: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
2181: my ($score,$incomplete) =
2182: &Apache::lonplacementtest::check_completion(undef,undef,1);
2183: if (!$incomplete) {
2184: $result .= &Apache::lonplacementtest::showresult(1,1);
2185: } elsif ($incomplete < 100) {
2186: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
2187: }
2188: } else {
2189: # For Placement Tests score is displayed if test has just been completed
2190: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
2191: if (!$incomplete) {
2192: $result.= &Apache::lonplacementtest::showresult(1,1);
2193: }
2194: }
2195: }
2196: }
2197: }
1.546 raeburn 2198: }
2199: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2200: 'notbody' => 1});
1.159 albertel 2201: } elsif ($target eq 'tex') {
1.178 sakharuk 2202: my $endminipage = '';
1.284 albertel 2203: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2204: $endminipage = '\end{minipage}';
2205: }
1.284 albertel 2206: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2207: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2208: } else {
1.262 sakharuk 2209: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2210: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2211: $result .= $endminipage.'\end{document} ';
2212: } else {
1.382 albertel 2213: $result .= $endminipage;
1.262 sakharuk 2214: }
1.159 albertel 2215: }
2216: }
2217: }
1.476 www 2218: if ($target eq 'web') {
1.566 raeburn 2219: $result.=&Apache::functionplotresponse::init_script();
2220: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2221: my ($symb) = &Apache::lonnet::whichuser();
2222: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2223: ($status eq 'CAN_ANSWER')) {
2224: unless (@Apache::inputtags::partlist > 1) {
2225: $result.= <<"ENDJS";
2226: <script type="text/javascript">
2227: // <![CDATA[
2228: \$(document).ready(function() {
2229: \$('#LC_randomizetry_header').css('display','block');
2230: });
2231: // ]]>
2232: </script>
2233: ENDJS
2234: }
2235: }
2236: }
1.476 www 2237: }
1.159 albertel 2238: if ($target eq 'grade') {
2239: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2240: &finalize_storage();
2241: }
1.284 albertel 2242: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2243: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2244: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2245: # normally we get it from above, but in CSTR
1.172 albertel 2246: # we always show answer mode too.
1.159 albertel 2247: }
2248: } elsif ($target eq 'meta') {
2249: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2250: @Apache::inputtags::response=();
1.159 albertel 2251: $result=&Apache::response::mandatory_part_meta;
2252: }
1.559 raeburn 2253: $result.=&Apache::response::meta_part_order('problem');
1.258 albertel 2254: $result.=&Apache::response::meta_response_order();
1.159 albertel 2255: } elsif ($target eq 'edit') {
2256: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2257: $result .= &problem_edit_footer();
1.320 albertel 2258: } elsif ($target eq 'modified') {
2259: $result .= $token->[2];
1.159 albertel 2260: }
1.155 albertel 2261:
1.284 albertel 2262: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2263: &Apache::inputtags::check_for_duplicate_ids();
2264: }
1.204 albertel 2265:
2266: &reset_problem_globals('problem');
1.159 albertel 2267:
1.502 foxr 2268: #
2269: # This shouild be just above the return so that the
2270: # time put in the javascript is as late as possible in the
2271: # computation:
2272: #
2273: if ($target eq 'web') {
2274: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2275: #
2276: # Closing tags delayed so any <script></script> tags
2277: # not in head can appear inside body, for valid xhtml.
2278: #
2279: $result .= "</body>\n</html>";
1.502 foxr 2280: }
1.159 albertel 2281: return $result;
1.48 albertel 2282: }
2283:
1.108 albertel 2284:
1.48 albertel 2285: sub start_library {
1.159 albertel 2286: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2287: my ($result,$form_tag_start);
1.371 albertel 2288: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2289: &init_problem_globals('library');
2290: $Apache::lonhomework::type='problem';
2291: }
1.159 albertel 2292: if ($target eq 'edit') {
1.343 albertel 2293: ($result,$form_tag_start)=
2294: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2295: 'Edit');
2296: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2297: my $temp=&Apache::edit::insertlist($target,$token);
2298: $result.=$temp;
2299: } elsif ($target eq 'modified') {
2300: $result=$token->[4];
1.340 albertel 2301: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2302: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2303: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2304: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2305: ($result,$form_tag_start)=
2306: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2307: $name);
1.479 raeburn 2308: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2309: $result.=" \n $form_tag_start".
1.159 albertel 2310: '<input type="hidden" name="submitted" value="yes" />';
2311: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2312: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2313: $result.= '<button type="submit" name="resetdata" '.
2314: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2315: &practice_problem_header().'<hr />';
1.428 raeburn 2316: }
1.159 albertel 2317: }
2318: return $result;
1.48 albertel 2319: }
2320:
2321: sub end_library {
1.159 albertel 2322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2323: my $result='';
2324: if ($target eq 'edit') {
2325: $result=&problem_edit_footer();
1.371 albertel 2326: } elsif ($target eq 'web'
2327: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2328: && $env{'request.state'} eq "construct") {
1.349 albertel 2329: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.558 raeburn 2330: } elsif ($target eq 'meta') {
1.559 raeburn 2331: $result.=&Apache::response::meta_part_order('library');
1.558 raeburn 2332: $result.=&Apache::response::meta_response_order();
1.159 albertel 2333: }
1.371 albertel 2334: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2335: &reset_problem_globals('library');
2336: }
1.159 albertel 2337: return $result;
1.197 www 2338: }
2339:
2340: sub start_definetag {
1.326 albertel 2341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2342:
2343: my $result;
2344:
2345: my $name = $token->[2]->{'name'};
1.326 albertel 2346: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2347: if ($target eq 'web') {
2348: if ($name=~/^\//) {
2349: $result=
2350: '<br /><table class="LC_sty_end"><tr><th>'.
2351: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2352: } else {
2353: $result=
2354: '<br /><table class="LC_sty_begin"><tr><th>'.
2355: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2356: }
2357: $skip = &HTML::Entities::encode($skip, '<>&"');
2358: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2359: }
2360: return $result;
2361: }
2362:
2363: sub end_definetag {
2364: return '';
1.1 albertel 2365: }
2366:
2367: sub start_block {
1.201 albertel 2368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2369:
2370: my $result;
1.1 albertel 2371:
1.339 albertel 2372: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2373: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2374: my $code = $token->[2]->{'condition'};
1.385 albertel 2375: if (defined($code) && $code ne '') {
1.137 albertel 2376: if (!$Apache::lonxml::default_homework_loaded) {
2377: &Apache::lonxml::default_homework_load($safeeval);
2378: }
1.131 albertel 2379: $result = &Apache::run::run($code,$safeeval);
2380: &Apache::lonxml::debug("block :$code: returned :$result:");
2381: } else {
2382: $result='1';
2383: }
2384: if ( ! $result ) {
1.201 albertel 2385: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2386: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2387: }
2388: $result='';
2389: } elsif ($target eq 'edit') {
2390: $result .=&Apache::edit::tag_start($target,$token);
2391: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2392: $token,40);
2393: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2394: } elsif ($target eq 'modified') {
2395: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2396: $safeeval,'condition');
2397: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2398: }
1.131 albertel 2399: return $result;
1.1 albertel 2400: }
2401:
2402: sub end_block {
1.167 www 2403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2404: my $result;
2405: if ($target eq "edit") {
2406: $result.= &Apache::edit::tag_end($target,$token,'');
2407: }
2408: return $result;
2409: }
1.500 foxr 2410: #
2411: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2412: # ...
2413: # </languageblock>
2414: #
2415: # This declares the intent to provide content that can be rendered in the
2416: # set of languages in the include specificatino but not in the exclude
2417: # specification. If a currently preferred language is in the include list
2418: # the content in the <languageblock>...</languageblock> is rendered
2419: # If the currently preferred language is in the exclude list,
2420: # the content in the <languageblock>..></languageblock is not rendered.
2421: #
2422: # Pathalogical case handling:
2423: # - Include specified, without the preferred language but exclude specified
2424: # also without the preferred langauge results in rendering the block.
2425: # - Exclude specified without include and excluden not containing a
2426: # preferred language renders the block.
2427: # - Include and exclude both specifying the preferred language does not
2428: # render the block.
2429: # - If neither include/exclude is specified, the block gets rendered.
2430: #
2431: # This tag has no effect when target is in {edit, modified}
2432: #
1.167 www 2433: sub start_languageblock {
1.201 albertel 2434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2435:
1.500 foxr 2436: my $result = '';
1.167 www 2437:
1.339 albertel 2438: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2439: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2440: my $include = $token->[2]->{'include'};
2441: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2442: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2443:
2444: # This should not even happen, since we should at least have the server language
2445:
2446: if (!$preferred_languages[0]) {
2447: $preferred_languages[0]='en';
2448: }
2449:
2450: # Now loop over all languages in order of preference
2451:
2452: my $render;
1.398 www 2453: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2454:
2455: # If neither include/nor exlude is present the block is going
2456: # to get rendered.
2457:
1.399 www 2458: my $found=0;
1.500 foxr 2459: $render=1;
2460:
2461: # If include is specified, don't render the block
2462: # unless the preferred language is included in the set.
2463:
1.398 www 2464: if ($include) {
1.500 foxr 2465: $render=0;
1.398 www 2466: foreach my $included_language (split(/\,/,$include)) {
2467: if ($included_language eq $preferred_language) {
1.500 foxr 2468: $render=1;
1.399 www 2469: $found=1;
1.500 foxr 2470: last; # Only need to find the first.
1.398 www 2471: }
2472: }
2473: }
1.500 foxr 2474: # Do we have an exclude argument?
2475: # If so, and one of the languages matches a preferred language
2476: # inhibit rendering the block. Note that in the pathalogical case the
2477: # author has specified a preferred language in both the include and exclude
2478: # attribte exclude is preferred.
2479:
1.398 www 2480: if ($exclude) {
1.500 foxr 2481: $render=1;
1.398 www 2482: foreach my $excluded_language (split(/\,/,$exclude)) {
2483: if ($excluded_language eq $preferred_language) {
1.500 foxr 2484: $render=0;
1.399 www 2485: $found=1;
1.500 foxr 2486: last; # Only need to find the first.
1.398 www 2487: }
2488: }
2489: }
1.500 foxr 2490: if ($found) {
2491: last; # Done on any match of include or exclude.
2492: }
1.398 www 2493: }
1.500 foxr 2494: # If $render not true skip the entire block until </languageblock>
2495: #
2496:
2497: if ( ! $render ) {
1.201 albertel 2498: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2499: $style);
2500: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2501: }
1.500 foxr 2502: # If $render is true, we've not skipped the contents of the <languageglock>
2503: # and the normal loncapa processing flow will render it as a matter of course.
2504:
1.167 www 2505: } elsif ($target eq 'edit') {
2506: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2507: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2508: $token,40);
1.211 albertel 2509: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2510: $token,40);
2511: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2512: } elsif ($target eq 'modified') {
2513: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2514: $safeeval,'include',
2515: 'exclude');
1.167 www 2516: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2517: }
2518: return $result;
2519: }
2520:
2521: sub end_languageblock {
1.170 www 2522: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2523: my $result;
1.201 albertel 2524: if ($target eq "edit") {
1.170 www 2525: $result.= &Apache::edit::tag_end($target,$token,'');
2526: }
2527: return $result;
2528: }
1.500 foxr 2529: # languagblock specific tags:
2530: {
2531: # For chunks of a resource that has translations, this hash contains
2532: # the translations available indexed by language name.
2533: #
2534:
2535: my %available_texts;
1.170 www 2536:
1.500 foxr 2537: # <translated> starts a block of a resource that has multiple translations.
2538: # See the <lang> tag as well.
2539: # When </translated> is encountered if there is a translation for the
2540: # currently preferred language, that is rendered inthe web/tex/webgrade
2541: # targets. Otherwise, the default text is rendered.
2542: #
2543: # Note that <lang> is only registered for the duration of the
2544: # <translated>...</translated> block
2545: #
2546: # Pathalogical case handling:
2547: # - If there is no <lang> that specifies a 'default' and there is no
2548: # translation that matches a preferred language, nothing is rendered.
2549: # - Nested <translated>...</translated> might be linguistically supported by
2550: # XML due to the stack nature of tag registration(?) however the rendered
2551: # output will be incorrect because there is only one %available_texts
2552: # has and end_translated clears it.
2553: # - Material outside of a <lang>...</lang> block within the
2554: # <translated>...<translated> block won't render either e.g.:
2555: # <translated>
2556: # The following will be in your preferred langauge:
2557: # <lang which='en'>
2558: # This section in english
2559: # </lang>
2560: # <lang which='sgeiso'>
2561: # Hier es ist auf Deutsch.
2562: # </lang>
2563: # <lang which='sfriso'>
2564: # En Francais
2565: # </lang>
2566: # </translated>
2567: #
2568: # The introductory text prior to the first <lang> tag is not rendered.
2569: #
1.397 albertel 2570: sub start_translated {
2571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2572: &Apache::lonxml::register('Apache::structuretags',('lang'));
2573: undef(%available_texts);
2574: }
2575:
2576: sub end_translated {
2577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2578: my $result;
2579: #show the translation on viewable targets
2580: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2581: # or non-viewable targets, if it's embedded in something that
2582: # wants the output
2583: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2584: && &Apache::lonxml::in_redirection() ) ) {
2585: my @possibilities = keys(%available_texts);
2586: my $which =
2587: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2588: if ($target eq 'tex') {
2589: $result = &select_hyphenation($which);
2590: }
2591: $result .= $available_texts{$which};
2592: if ($target eq 'tex') {
2593: $result .= &select_metadata_hyphenation(); # Restore original language.
2594: }
1.397 albertel 2595: }
2596: undef(%available_texts);
2597: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2598: return $result;
2599: }
2600:
1.500 foxr 2601: # <lang [which='language-name'] [other='lang1,lang2...']>
2602: # Specifies that the block contained within it is a translation
2603: # for a specific language specified by the 'which' attribute. The
2604: # 'other' attribute can be used by itself or in conjunction with
2605: # which to specify this tag _may_ be used as a translation for some
2606: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2607: # specifying that the block provides a translation for US (primary)
2608: # Canadian, Australian and UK Englush.
2609: #
2610: # Comment: this seems a bit silly why not just support a list of languages
2611: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2612: #
2613: # Effect:
2614: # The material within the <lang>..</lang> block is stored in the
2615: # specified set of $available_texts hash entries, the appropriate one
2616: # is selected at </translated> time.
2617: #
2618: # Pathalogical case handling:
2619: # If a language occurs multiple times within a <translated> block,
2620: # only the last one is rendered e.g.:
2621: #
2622: # <translated>
2623: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2624: # Red green color blindness is quite common affecting about 7.8% of
2625: # the male population, but onloy about .65% of the female population.
2626: # </lang>
2627: # Red green colour blindness is quite common affecting about 7.8% of
2628: # the male population, but onloy about .65% of the female population.
2629: # <lang which='seniso', other='senisoCA,senisoAU'>
2630: # </translated>
2631: #
2632: # renders the correct spelling of color (colour) for people who have specified
2633: # a preferred language that is one of the British Commonwealth languages
2634: # even though those are also listed as valid selections for the US english
2635: # <lang> block.
2636: #
1.397 albertel 2637: sub start_lang {
2638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2639: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2640: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2641: &Apache::lonxml::startredirection();
2642: }
2643: return '';
2644: }
2645:
2646: sub end_lang {
2647: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2648: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2649: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2650: my $result = &Apache::lonxml::endredirection();
2651: my $which = &Apache::lonxml::get_param('which',$parstack,
2652: $safeeval);
1.431 raeburn 2653: if ($which=~/\w/) {
2654: $available_texts{$which} = $result;
2655: }
2656: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2657: $safeeval);
2658: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2659: if ($language=~/\w/) {
2660: $available_texts{$language} = $result;
2661: }
1.427 bisitz 2662: }
2663:
1.397 albertel 2664: }
2665: return '';
2666: }
1.500 foxr 2667: } # end langauge block specific tags.
2668:
1.397 albertel 2669:
1.170 www 2670: sub start_instructorcomment {
1.201 albertel 2671: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2672:
2673: my $result;
2674:
1.339 albertel 2675: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2676: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2677: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2678: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2679: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2680: $parser,$style);
1.170 www 2681: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2682: }
2683: $result='';
2684: } elsif ($target eq 'edit') {
2685: $result .=&Apache::edit::tag_start($target,$token);
2686: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2687: }
2688: return $result;
2689: }
2690:
2691: sub end_instructorcomment {
1.159 albertel 2692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2693: my $result;
2694: if ($target eq "edit") {
2695: $result.= &Apache::edit::tag_end($target,$token,'');
2696: }
2697: return $result;
1.4 tsai 2698: }
2699:
2700: sub start_while {
1.326 albertel 2701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2702:
1.160 albertel 2703: my $result;
1.339 albertel 2704: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2705: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2706: my $code = $token->[2]->{'condition'};
1.4 tsai 2707:
1.160 albertel 2708: push( @Apache::structuretags::whileconds, $code);
2709: if (!$Apache::lonxml::default_homework_loaded) {
2710: &Apache::lonxml::default_homework_load($safeeval);
2711: }
2712: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2713: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2714: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2715: push( @Apache::structuretags::whileline, $token->[5]);
2716: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2717: if ( $result ) {
2718: &Apache::lonxml::newparser($parser,\$bodytext);
2719: }
2720: } elsif ($target eq 'edit') {
2721: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2722: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2723: $token,40);
2724: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2725: } elsif ($target eq 'modified') {
2726: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2727: $safeeval,'condition');
2728: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2729: }
1.160 albertel 2730: return $result;
1.4 tsai 2731: }
2732:
2733: sub end_while {
1.159 albertel 2734: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2735: my $result;
2736:
1.339 albertel 2737: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2738: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2739: my $code = pop(@Apache::structuretags::whileconds);
2740: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2741: my $line = pop(@Apache::structuretags::whileline);
2742: my $return = &Apache::run::run($code,$safeeval);
2743: my $starttime=time;
2744: my $error=0;
2745: while ($return) {
2746: if (time-$starttime >
2747: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2748: $return = 0; $error=1; next;
1.161 albertel 2749: }
2750: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2751: if ($target eq 'grade' || $target eq 'answer' ||
2752: $target eq 'analyze') {
2753: # grade/answer/analyze should produce no output but if we
2754: # are redirecting, the redirecter should know what to do
2755: # with the output
2756: if (!$Apache::lonxml::redirection) { undef($result); }
2757: }
1.161 albertel 2758: $return = &Apache::run::run($code,$safeeval);
2759: }
1.516 bisitz 2760: if ($error) {
2761: &Apache::lonxml::error(
2762: '<pre>'
2763: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2764: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2765: .&mt('This occurred while running <while> on line [_1].',
2766: $line)
2767: .'</pre>');
2768: }
1.160 albertel 2769: } elsif ($target eq "edit") {
2770: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2771: }
1.160 albertel 2772: return $result;
1.1 albertel 2773: }
1.6 tsai 2774:
1.160 albertel 2775: # <randomlist show="1">
1.6 tsai 2776: # <tag1>..</tag1>
2777: # <tag2>..</tag2>
2778: # <tag3>..</tag3>
1.160 albertel 2779: # ...
1.6 tsai 2780: # </randomlist>
2781: sub start_randomlist {
1.326 albertel 2782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2783: my $result;
1.339 albertel 2784: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2785: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2786: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2787: my $b_parser= HTML::LCParser->new(\$body);
2788: $b_parser->xml_mode(1);
2789: $b_parser->marked_sections(1);
1.159 albertel 2790: my $b_tok;
2791: my @randomlist;
2792: my $list_item;
2793: while($b_tok = $b_parser->get_token() ) {
2794: if($b_tok->[0] eq 'S') { # start tag
2795: # get content of the tag until matching end tag
2796: # get all text upto the matching tag
2797: # and push the content into @randomlist
2798: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2799: $b_parser);
2800: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2801: push(@randomlist,$list_item);
2802: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2803: # $list_item</b>";
2804: }
2805: if($b_tok->[0] eq 'T') { # text
2806: # what to do with text in between tags?
2807: # print "<b>TEXT $b_tok->[1]</b><br />";
2808: }
2809: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2810: # print "<b>END-TAG $b_tok->[1]</b><br />";
2811: # }
2812: }
1.303 albertel 2813: if (@randomlist) {
2814: my @idx_arr = (0 .. $#randomlist);
1.555 raeburn 2815: if ($env{'form.code_for_randomlist'}) {
2816: &Apache::structuretags::shuffle(\@idx_arr,$target);
2817: undef($env{'form.code_for_randomlist'});
2818: } else {
2819: &Apache::structuretags::shuffle(\@idx_arr);
2820: }
1.303 albertel 2821: my $bodytext = '';
2822: my $show=$#randomlist;
2823: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2824: $showarg--;
2825: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2826: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2827: my @currlist;
2828: my $part = $Apache::inputtags::part;
2829: if ($part ne '') {
2830: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2831: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2832: if (!(grep(/^\Q$part\E$/,@currlist))) {
2833: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2834: }
2835: } else {
2836: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2837: }
2838: }
2839: }
1.526 raeburn 2840: for my $i (0 .. $show) {
2841: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2842: }
2843: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2844: }
2845: } elsif ($target eq 'edit' ) {
2846: $result .=&Apache::edit::tag_start($target,$token);
2847: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2848: $token,5);
2849: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2850: } elsif ($target eq 'modified' ) {
2851: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2852: $safeeval,'show');
2853: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2854: }
2855: return $result;
1.7 tsai 2856: }
2857:
2858: sub shuffle {
1.555 raeburn 2859: my ($a,$target) = @_;
1.7 tsai 2860: my $i;
1.303 albertel 2861: if (ref($a) eq 'ARRAY' && @$a) {
1.555 raeburn 2862: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2863: for($i=@$a;--$i;) {
2864: my $j=int(&Math::Random::random_uniform() * ($i+1));
2865: next if $i == $j;
2866: @$a[$i,$j] = @$a[$j,$i];
2867: }
1.251 albertel 2868: &Apache::response::poprandomnumber();
1.7 tsai 2869: }
1.6 tsai 2870: }
2871:
2872: sub end_randomlist {
1.159 albertel 2873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2874: my $result;
2875: if ($target eq 'edit' ) {
2876: $result=&Apache::edit::tag_end($target,$token,
2877: 'End Randomly Parsed Block');
2878: }
2879: return $result;
1.6 tsai 2880: }
2881:
1.283 albertel 2882: sub ordered_show_check {
2883: my $last_part=$Apache::inputtags::partlist[-2];
2884: my $in_order=
2885: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2886: my $in_order_show=1;
2887: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2888: $in_order_show=&Apache::response::check_status($last_part);
2889: }
2890: return $in_order_show;
2891: }
2892:
1.469 www 2893:
2894: sub start_startpartmarker {
2895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2896: my $result='';
2897: if ($target eq 'edit') {
2898: $result=&Apache::edit::tag_start($target,$token);
2899: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2900: $result.=&Apache::edit::end_table();
2901:
2902: }
2903: return $result;
2904: }
2905:
2906: sub end_startpartmarker {
2907: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2908: my @result;
2909: if ($target eq 'edit') { $result[1]='no'; }
2910: return @result;
2911: }
2912:
2913: sub start_endpartmarker {
2914: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2915: my $result='';
2916: if ($target eq 'edit') {
2917: $result=&Apache::edit::tag_start($target,$token);
2918: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2919: $result.=&Apache::edit::end_table();
2920:
2921: }
2922: return $result;
2923: }
2924:
2925: sub end_endpartmarker {
2926: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2927: my @result;
2928: if ($target eq 'edit') { $result[1]='no'; }
2929: return @result;
2930: }
2931:
2932:
2933:
2934:
2935:
1.11 albertel 2936: sub start_part {
1.326 albertel 2937: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2938: if (!$Apache::lonxml::metamode) {
2939: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2940: # duedates.
2941: }
1.159 albertel 2942: my $result='';
1.386 albertel 2943: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2944: $Apache::inputtags::part=$id;
1.177 albertel 2945: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2946: $Apache::inputtags::leniency='';
1.177 albertel 2947: @Apache::inputtags::response=();
1.159 albertel 2948: @Apache::inputtags::previous=();
2949: @Apache::inputtags::previous_version=();
1.405 albertel 2950: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2951: &Apache::response::reset_params();
2952:
1.159 albertel 2953: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2954: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2955: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2956: if ($Apache::lonhomework::type eq 'randomizetry') {
2957: my $rndseed=&setup_rndseed($safeeval,$target);
2958: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2959: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2960: }
2961: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2962: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2963: }
1.283 albertel 2964: my $in_order_show=&ordered_show_check();
1.214 albertel 2965: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2966: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2967: &Apache::run::run($expression,$safeeval);
1.159 albertel 2968:
2969: if ($target eq 'meta') {
1.224 www 2970: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2971: return &Apache::response::mandatory_part_meta.
2972: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2973: } elsif ($target eq 'web' || $target eq 'grade' ||
2974: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2975: if ($hidden || !$in_order_show) {
1.326 albertel 2976: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2977: } else {
2978: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2979: push (@Apache::inputtags::status,$status);
2980: my $expression='$external::datestatus="'.$status.'";';
2981: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2982: &Apache::run::run($expression,$safeeval);
1.284 albertel 2983: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2984: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2985: }
1.216 albertel 2986: if (( $status eq 'CLOSED' ) ||
2987: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2988: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2989: ( $status eq 'BANNED') ||
2990: ( $status eq 'UNAVAILABLE') ||
2991: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2992: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2993: $style);
1.159 albertel 2994: if ( $target eq "web" ) {
1.211 albertel 2995: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2996: } elsif ( $target eq 'tex' ) {
1.284 albertel 2997: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2998: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2999: } else {
1.211 albertel 3000: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 3001: }
1.159 albertel 3002: }
3003: } else {
3004: if ($target eq 'tex') {
1.284 albertel 3005: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 3006: if ($$tagstack[-2] eq 'td') {
1.388 foxr 3007: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 3008: } else {
3009: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
3010: }
1.195 sakharuk 3011: }
1.159 albertel 3012: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 3013: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 3014: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 3015: my $allow_print_points = 0;
3016: foreach my $partial_key (@allkeys) {
1.230 albertel 3017: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 3018: if ($1 ne '0') {$allow_print_points=1;}
3019: }
3020: }
1.275 albertel 3021: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
3022: if (defined($maxtries) && $maxtries < 0) {
3023: $allow_print_points=0;
3024: }
1.302 albertel 3025: if (lc($env{'course.'.$env{'request.course.id'}.
3026: '.disableexampointprint'}) eq 'yes') {
3027: $allow_print_points=0;
3028: }
1.463 foxr 3029: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3030: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3031:
3032: }
1.233 www 3033: } elsif ($target eq 'web') {
1.479 raeburn 3034: if ($status eq 'CAN_ANSWER') {
3035: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3036: my $num = scalar(@Apache::inputtags::partlist)-1;
1.567 raeburn 3037: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3038: ($Apache::lonhomework::randomizetrypart)) &&
1.566 raeburn 3039: ($Apache::lonhomework::type ne 'randomizetry')) {
3040: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3041: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3042: $Apache::lonhomework::randomizetrypart = 1;
3043: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3044: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3045: }
3046: }
1.475 raeburn 3047: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3048: }
3049: }
3050: }
3051: } elsif ($target eq 'edit') {
3052: $result.=&Apache::edit::tag_start($target,$token);
3053: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3054: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3055: ' '.
3056: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3057: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3058: } elsif ($target eq 'modified') {
3059: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3060: $safeeval,'id','display');
1.159 albertel 3061: if ($constructtag) {
1.225 albertel 3062: #limiting ids to only letters numbers, and space
1.224 www 3063: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3064: $result = &Apache::edit::rebuild_tag($token);
3065: }
3066: }
3067: return $result;
1.11 albertel 3068: }
3069:
3070: sub end_part {
1.159 albertel 3071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3072: &Apache::lonxml::debug("in end_part $target ");
3073: my $status=$Apache::inputtags::status['-1'];
3074: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3075: my $in_order_show=&ordered_show_check();
1.321 albertel 3076: my $result;
3077: if (!$Apache::lonxml::metamode) {
3078: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3079: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3080: }
1.312 albertel 3081: if ($target eq 'grade') {
1.249 albertel 3082: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3083: !$hidden && $in_order_show) {
1.311 foxr 3084: $result.=&Apache::inputtags::grade;
1.249 albertel 3085: } else {
3086: # move any submission data to .hidden
3087: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3088: }
1.283 albertel 3089: } elsif (($target eq 'web' || $target eq 'tex') &&
3090: !$hidden && $in_order_show) {
1.159 albertel 3091: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3092: $target);
1.490 raeburn 3093: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3094: ($env{'form.grade_imsexport'})) {
1.212 albertel 3095: $gradestatus='';
3096: }
1.311 foxr 3097: $result.=$gradestatus;
1.265 sakharuk 3098: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 3099: } elsif ($target eq 'edit') {
1.311 foxr 3100: $result.=&Apache::edit::end_table();
1.322 albertel 3101: } elsif ($target eq 'modified') {
3102: $result .= $token->[2];
1.159 albertel 3103: }
3104: pop @Apache::inputtags::status;
3105: $Apache::inputtags::part='';
1.536 raeburn 3106: $Apache::inputtags::leniency='';
1.295 albertel 3107: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3108: return $result;
1.11 albertel 3109: }
1.1 albertel 3110:
1.25 albertel 3111: sub start_preduedate {
1.326 albertel 3112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3113: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3114: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3115: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3116: if (!$Apache::lonhomework::scantronmode &&
3117: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3118: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3119: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3120: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3121: }
1.24 albertel 3122: }
1.159 albertel 3123: return '';
1.24 albertel 3124: }
3125:
1.25 albertel 3126: sub end_preduedate {
1.159 albertel 3127: return '';
1.24 albertel 3128: }
3129:
1.369 foxr 3130: # In all the modes where <postanswerdate> text is
3131: # displayable, all we do is eat up the text between the start/stop
3132: # tags if the conditions are not right to display it.
1.25 albertel 3133: sub start_postanswerdate {
1.326 albertel 3134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3135: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3136: &Apache::lonnet::allowed('pav',
3137: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3138: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3139: $target eq 'tex' ) {
1.300 albertel 3140: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3141: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3142: (($target eq 'tex') && !$pav)) {
1.326 albertel 3143: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3144: }
3145: }
3146: return '';
1.24 albertel 3147: }
3148:
1.25 albertel 3149: sub end_postanswerdate {
1.159 albertel 3150: return '';
1.24 albertel 3151: }
3152:
1.25 albertel 3153: sub start_notsolved {
1.326 albertel 3154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3155: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3156: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3157: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3158: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3159: if ($gradestatus =~ /^correct/ &&
3160: &Apache::response::show_answer()) {
1.159 albertel 3161: &Apache::lonxml::debug("skipping");
1.326 albertel 3162: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3163: }
1.24 albertel 3164: }
1.159 albertel 3165: return '';
1.24 albertel 3166: }
3167:
1.25 albertel 3168: sub end_notsolved {
1.159 albertel 3169: return '';
1.24 albertel 3170: }
3171:
3172: sub start_solved {
1.326 albertel 3173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3174: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3175: $target eq 'tex') {
3176: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3177: if ($gradestatus !~ /^correct/ ||
3178: !&Apache::response::show_answer()) {
1.326 albertel 3179: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3180: }
1.24 albertel 3181: }
1.159 albertel 3182: return '';
1.24 albertel 3183: }
3184:
3185: sub end_solved {
1.248 albertel 3186: return '';
3187: }
3188:
3189: sub start_problemtype {
1.326 albertel 3190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3191: my $result;
1.339 albertel 3192: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3193: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3194: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3195: if (!defined($mode)) { $mode='show'; }
3196: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3197: my $found=0;
3198: foreach my $type (split(',',$for)) {
3199: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3200: }
3201: if ($mode eq 'show' && !$found) {
1.326 albertel 3202: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3203: }
3204: if ($mode eq 'hide' && $found) {
1.326 albertel 3205: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3206: }
3207: } elsif ($target eq 'edit') {
3208: $result .=&Apache::edit::tag_start($target,$token);
3209: $result.=&Apache::edit::select_arg('Mode:','mode',
3210: [['show','Show'],
3211: ['hide','Hide']]
3212: ,$token);
3213: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3214: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3215: ['survey','Survey'],
1.465 raeburn 3216: ['surveycred','Survey (with credit)'],
3217: ['anonsurvey','Anonymous Survey'],
3218: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3219: ['problem','Homework Problem'],
1.479 raeburn 3220: ['practice','Practice Problem'],
3221: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3222: ,$token);
3223: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3224: } elsif ($target eq 'modified') {
3225: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3226: $safeeval,'mode','for');
3227: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3228: }
3229: return $result;
3230: }
3231:
3232: sub end_problemtype {
1.159 albertel 3233: return '';
1.24 albertel 3234: }
1.34 albertel 3235:
3236: sub start_startouttext {
1.159 albertel 3237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3238: my @result=(''.'');
3239: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3240:
3241: my $nesting =
3242: &Apache::lonxml::set_state('outtext',
3243: &Apache::lonxml::get_state('outtext')+1);
3244: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3245: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3246: }
1.159 albertel 3247: return (@result);
1.34 albertel 3248: }
1.159 albertel 3249:
1.34 albertel 3250: sub end_startouttext {
1.326 albertel 3251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3252: my $result='';
3253: my $text='';
3254: if ($target eq 'edit') {
1.424 foxr 3255: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3256: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3257: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3258: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3259: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3260: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3261: .'</span></td>'
1.550 raeburn 3262: .'<td><span id="math_'.$areaid.'">';
3263: if ($env{'environment.nocodemirror'}) {
3264: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3265: } else {
3266: $result.=' ';
3267: }
3268: $result.='</span></td>'
1.474 raeburn 3269: .'<td>'
3270: .&Apache::edit::insertlist($target,$token)
3271: .'</td>'
1.515 golterma 3272: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3273: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3274: &Apache::edit::end_row().
1.362 albertel 3275: &Apache::edit::start_spanning_row()."\n".
1.255 www 3276: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3277: }
3278: if ($target eq 'modified') {
1.219 albertel 3279: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3280: }
3281: if ($target eq 'tex') {
3282: $result .= '\noindent ';
3283: }
3284: return $result;
1.34 albertel 3285: }
1.159 albertel 3286:
1.34 albertel 3287: sub start_endouttext {
1.159 albertel 3288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3289: my $result='';
3290: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3291: if ($target eq "modified") {
3292: $result='<endouttext />'.
1.377 albertel 3293: &Apache::edit::handle_insertafter('startouttext');
3294: }
1.404 albertel 3295:
3296: my $nesting =
3297: &Apache::lonxml::set_state('outtext',
3298: &Apache::lonxml::get_state('outtext')-1);
3299: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3300: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3301: &Apache::lonxml::set_state('outtext', 0);
3302: }
1.159 albertel 3303: return $result;
1.34 albertel 3304: }
1.159 albertel 3305:
1.34 albertel 3306: sub end_endouttext {
1.159 albertel 3307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3308: my @result=('','');
3309: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3310: return (@result);
1.34 albertel 3311: }
1.159 albertel 3312:
1.45 albertel 3313: sub delete_startouttext {
1.326 albertel 3314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3315: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3316: my $text=$$parser['-1']->get_text("/endouttext");
3317: my $ntoken=$$parser['-1']->get_token();
3318: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3319: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3320: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3321: # they did the last time round
3322: &Apache::lonxml::increasedepth($ntoken);
3323: &Apache::lonxml::decreasedepth($ntoken);
3324: return 1;
1.193 www 3325: }
3326:
3327: sub start_simpleeditbutton {
3328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3329: my $result='';
1.284 albertel 3330: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3331: ($target eq 'web') &&
1.330 albertel 3332: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3333: my $url=$env{'request.noversionuri'};
1.193 www 3334: $url=~s/\?.*$//;
1.367 albertel 3335: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3336: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3337: # $result='<p class="LC_warning">'
3338: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3339: # .&Apache::loncommon::help_open_topic('Caching')
3340: # .'</p>';
1.486 www 3341: $result.=&Apache::loncommon::head_subbox(
3342: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3343: .&Apache::lonhtmlcommon::add_item_funclist(
3344: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3345: .&mt('Edit').'</a>')
1.486 www 3346: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3347:
1.193 www 3348: }
3349: return $result;
3350: }
3351:
3352: sub end_simpleeditbutton {
3353: return '';
1.45 albertel 3354: }
1.34 albertel 3355:
1.428 raeburn 3356: sub practice_problem_header {
1.556 raeburn 3357: return '<h3 class="LC_info">'.&mt('Practice Problem').'</h3>'.
1.428 raeburn 3358: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3359: '</span>';
3360: }
3361:
1.479 raeburn 3362: sub randomizetry_problem_header {
1.566 raeburn 3363: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3364: my ($header,$text);
3365: if ($reqtries > 1) {
3366: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3367: if (($problemstatus eq 'no') ||
3368: ($problemstatus eq 'no_feedback_ever')) {
3369: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3370: } else {
3371: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3372: }
3373: } else {
3374: $header = &mt('New Problem Variation Each Try');
3375: if (($problemstatus eq 'no') ||
3376: ($problemstatus eq 'no_feedback_ever')) {
3377: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3378:
3379: } else {
3380: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3381: }
3382: }
1.566 raeburn 3383: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3384: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3385: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3386: } else {
3387: return '<h3 class="LC_info">'.$header.'</h3>'.
3388: '<span class="LC_info">'.$text.'</span><hr />';
3389: }
1.479 raeburn 3390: }
3391:
3392: sub randomizetry_part_header {
3393: my ($problemstatus,$reqtries,$num) = @_;
3394: my ($header,$text);
3395: if ($reqtries eq 'none') {
3396: $header = &mt('No Question Variation');
3397: $text = &mt('For this question there will no new variation after a try.');
3398: } elsif ($reqtries > 1) {
3399: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3400: if (($problemstatus eq 'no') ||
3401: ($problemstatus eq 'no_feedback_ever')) {
3402: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3403: } else {
3404: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3405: }
3406: } else {
3407: $header = &mt('New Question Variation For Each Try');
3408: if (($problemstatus eq 'no') ||
3409: ($problemstatus eq 'no_feedback_ever')) {
3410: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3411: } else {
3412: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3413: }
3414: }
3415: my $output;
3416: if ($num > 1) {
3417: $output .= '<hr />';
3418: }
1.556 raeburn 3419: $output .= '<h4 class="LC_info">'.$header.'</h4>'.
1.479 raeburn 3420: '<span class="LC_info">'.$text.'</span><br /><br />';
3421: return $output;
3422: }
3423:
1.1 albertel 3424: 1;
3425: __END__
1.435 jms 3426:
3427: =pod
3428:
3429: =back
3430:
3431: =cut
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