Annotation of loncom/homework/structuretags.pm, revision 1.570
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.570 ! raeburn 4: # $Id: structuretags.pm,v 1.569 2019/11/06 16:20:06 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 {
1.570 ! raeburn 670: my ($safeeval,$target,$probpartlist,$prevparttype)=@_;
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: }
1.570 ! raeburn 787: } elsif ($prevparttype eq 'randomizetry') {
! 788: if ($env{'form.0.rndseed'} ne '') {
! 789: $set_safespace = 1;
! 790: $rndseed = $env{'form.0.rndseed'};
! 791: }
1.479 raeburn 792: }
793: if ($set_safespace) {
794: if ($safeeval) {
795: &Apache::lonxml::debug("Setting rndseed to $rndseed");
796: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.569 raeburn 797: if (($Apache::lonhomework::type eq 'randomizetry') || ($prevparttype eq 'randomizetry')) {
798: &Apache::lonxml::debug("Setting randomizetrypart to $Apache::inputtags::part");
799: &Apache::run::run('$external::randomizetrypart="'.$Apache::inputtags::part.'";',$safeeval);
800: }
1.479 raeburn 801: }
802: }
803: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
804: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 805: }
806: return $rndseed;
1.105 albertel 807: }
808:
1.268 albertel 809: sub remember_problem_state {
810: return '
1.284 albertel 811: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
812: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
813: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 814: }
815:
1.487 www 816: sub problem_edit_action_button {
817: my ($name,$action,$accesskey,$text,$flag)=@_;
818: my $actionscript="setmode(this.form,'$action')";
819: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
820: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
821: }
822:
1.423 www 823: sub problem_edit_buttons {
1.487 www 824: my ($mode)=@_;
1.535 droeschl 825: # Buttons that save
826: my $result = '<div style="float:right">';
827: if ($mode eq 'editxml') {
828: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
829: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
830: } else {
831: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
832: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
833: }
834: $result.="\n</div>\n";
1.487 www 835: # Buttons that do not save
1.535 droeschl 836: $result .= '<div>'.
1.487 www 837: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
838: if ($mode eq 'editxml') {
839: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
840: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 841: if ($env{'environment.nocodemirror'}) {
842: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
843: }
1.487 www 844: } else {
845: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
846: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
847: }
848: $result.="\n</div>";
849: return $result;
1.423 www 850: }
851:
852: sub problem_edit_header {
1.527 golterma 853: my ($mode)=@_;
854: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 855: &remember_problem_state('edit').'
1.527 golterma 856: <div class="LC_edit_problem_header">
857: <div class="LC_edit_problem_header_title">
858: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
859: </div><div class="LC_edit_actionbar" id="actionbar">'.
860: '<input type="hidden" name="problemmode" value="saveedit" />'.
861: &problem_edit_buttons();
862:
1.535 droeschl 863: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 864: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
865: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
866:
867: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
868: <script type="text/javascript">
869: // unless internet explorer
870: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
871: $(document).ready(
872: function() {
873: $(\'.LC_edit_actionbar\').scrollToFixed(
874: {
875: fixed: function(){
1.535 droeschl 876: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
877: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 878: }
879: }
880: );
881: }
882: );
883: }
884: </script>
885: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
886: return $return;
1.105 albertel 887: }
888:
889: sub problem_edit_footer {
1.527 golterma 890: my $resource = $env{'request.ambiguous'};
1.412 albertel 891: return '</td></tr></table><br />
892: <div class="LC_edit_problem_footer">
1.453 bisitz 893: <hr />'.
1.423 www 894: &problem_edit_buttons().'
1.459 bisitz 895: <hr style="clear:both;" />
1.527 golterma 896: <script type="text/javascript">
897: restoreState("'.$resource.'");
898: restoreScrollPosition("'.$resource.'");
899: </script>
1.412 albertel 900: </div>
901: '.
1.342 albertel 902: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 903: }
904:
1.235 albertel 905: sub option {
906: my ($value,$name) = @_;
907: my $result ="<option value='".$value."' ";
1.284 albertel 908: if ($env{'form.'.$name} eq $value) {
1.235 albertel 909: $result.=" selected='on' ";
910: }
911: $result.='>';
912: return $result;
913: }
914:
1.105 albertel 915: sub problem_web_to_edit_header {
1.159 albertel 916: my ($rndseed)=@_;
1.406 albertel 917: my $result .= '<div class="LC_edit_problem_header">';
918:
919: if (!$Apache::lonhomework::parsing_a_task) {
920: $result .=
921: '<div class="LC_edit_problem_header_title">'.
922: &mt('Problem Testing').
923: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
924: '</div>';
925: } else {
926: $result .=
927: '<div class="LC_edit_problem_header_title">'.
928: &mt('Task Testing').
929: '</div>';
930: }
931:
1.315 albertel 932: my $show_all_foils_text =
933: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 934: &mt('Show All Instances')
935: : &mt('Show All Foils');
1.315 albertel 936:
1.452 bisitz 937: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
938: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 939: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 940: $show_all.= ' /> '.$show_all_foils_text
941: .'</label></span>';
1.406 albertel 942:
943:
1.384 albertel 944:
1.406 albertel 945: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 946: if (!$Apache::lonhomework::parsing_a_task) {
947: $result.="
1.406 albertel 948: <div class='LC_edit_problem_header_row1'>
949: <span class=\"LC_nobreak\">
1.405 albertel 950: ".&mt("Problem Status:")."
1.235 albertel 951: <select name='problemstate'>
1.270 albertel 952: <option value=''></option>
1.235 albertel 953: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
954: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
955: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
956: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
957: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
958: </select>
1.406 albertel 959: </span>
960: <span class=\"LC_nobreak\">
1.405 albertel 961: ".&mt("Problem Type:")."
1.235 albertel 962: <select name='problemtype'>
1.270 albertel 963: <option value=''></option>
1.509 bisitz 964: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 965: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 966: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 967: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
968: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
969: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 970: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 971: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 972: </select>
1.406 albertel 973: </span>
974: $show_all
975: </div>
976: <div class='LC_edit_problem_header_row2'>
977: <span class=\"LC_nobreak\">
1.405 albertel 978: ".&mt("Feedback Mode:")."
1.235 albertel 979: <select name='problemstatus'>
980: <option value=''></option>
1.242 albertel 981: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 982: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 983: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 984: </select>
1.406 albertel 985: </span>
986: ";
987:
1.376 albertel 988: } elsif ($Apache::lonhomework::parsing_a_task) {
989: $result.="
1.406 albertel 990: <div class='LC_edit_problem_header_row1'>
991: <span class=\"LC_nobreak\">
1.405 albertel 992: ".&mt("Problem Status:")."
1.376 albertel 993: <select name='problemstate'>
994: <option value=''></option>
995: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
996: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
997: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
998: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
999: </select>
1.406 albertel 1000: </span>
1001: $show_all
1002: ";
1003: }
1004: $result.='
1005: <span class="LC_nobreak">
1006: '.&mt('Apply style file: ').'
1007: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
1008: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1009: </span>
1.422 www 1010: </div>
1011: <div class="LC_edit_problem_header_row1">'.
1012: &Apache::lonxml::renderingoptions().'
1.406 albertel 1013: </div>
1014: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1015: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 1016: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
1017: '.&mt('Reset Submissions').'</button>
1.406 albertel 1018: </div>
1.453 bisitz 1019: <hr />
1.406 albertel 1020: <div class="LC_edit_problem_header_randomize_row">
1021: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1022: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1023: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1024: $rndseed.'"
1025: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1026:
1027: if (!$Apache::lonhomework::parsing_a_task) {
1028: my $numtoanalyze=$env{'form.numtoanalyze'};
1029: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1030: $result .= '<span class="LC_nobreak">'.
1031: &mt('[_1] for [_2] versions.',
1.416 raeburn 1032: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1033: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1034: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1035: $numtoanalyze.'" size="5" />').
1036: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1037: '</span>';
1038:
1.313 albertel 1039: }
1.406 albertel 1040:
1041: $result.='
1042: </div>
1.453 bisitz 1043: <hr />
1.447 bisitz 1044: <div>';
1.416 raeburn 1045: $result.='<input type="hidden" name="problemmode" value="view" />';
1046: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1047: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1048: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1049: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1050: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1051: my $uri = $env{'request.uri'};
1.543 damieng 1052: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1053: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1054: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1055: }
1.408 albertel 1056: $result.='
1057: </div>
1.453 bisitz 1058: <hr />
1.409 albertel 1059: '.&Apache::lonxml::message_location().'
1.406 albertel 1060: </div>';
1.159 albertel 1061: return $result;
1.48 albertel 1062: }
1063:
1.65 albertel 1064: sub initialize_storage {
1.357 albertel 1065: my ($given_symb) = @_;
1.353 albertel 1066: undef(%Apache::lonhomework::results);
1067: undef(%Apache::lonhomework::history);
1.357 albertel 1068: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1069: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1070:
1071: # anonymous users (CODEd exams) have no data
1072: if ($name eq 'anonymous'
1073: && !defined($domain)) {
1074: return;
1075: }
1076:
1.333 albertel 1077: if ($env{'request.state'} eq 'construct'
1078: || $symb eq ''
1079: || $Apache::lonhomework::type eq 'practice') {
1080:
1081: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1082: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1083: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1084: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1085: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1086: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1087: &Apache::lonxml::debug("Attempt reset");
1088: }
1.159 albertel 1089: %Apache::lonhomework::history=
1.333 albertel 1090: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1091: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1092: &Apache::lonxml::debug("Return message of $temp");
1093: } else {
1094: %Apache::lonhomework::history=
1095: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1096: }
1.353 albertel 1097:
1.159 albertel 1098: #ignore error conditions
1.526 raeburn 1099: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1100: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1101: }
1102:
1.435 jms 1103: =pod
1104:
1105: =item finalize_storage()
1106:
1.524 raeburn 1107: Stores away the result hash to a student's environment;
1.523 raeburn 1108: checks form.grade_ for specific values, otherwise stores
1109: to the running user's environment.
1.524 raeburn 1110:
1111: &check_correctness_changes() is called in two circumstances
1112: in which the results hash is to be stored permanently, for
1113: grading triggered by a student's submission, where feedback on
1114: correctness is to be provided to the student.
1115:
1116: 1. Immediately prior to storing the results hash
1117:
1118: To handle the case where a student's submission (and award) were
1119: stored after history was retrieved in &initialize_storage(), e.g.,
1120: if a student submitted answers in quick succession (e.g., from
1121: multiple tabs). &Apache::inputtags::hidealldata() is called for
1122: any parts with out-of-order storage (i.e., correct then incorrect,
1123: where awarded >= 1 when correct).
1124:
1125: 2. Immediately after storing the results hash
1126:
1127: To handle the case where lond on the student's homeserver returns
1128: delay:N -- where N is the number of transactions between the last
1129: retrieved in &initialize_storage() and the last stored immediately
1130: before permanent storage of the current transaction via
1131: lond::store_handler(). &Apache::grades::makehidden() is called
1132: for any parts with out-of-order storage (i.e., correct then incorrect,
1133: where awarded >= 1 when correct).
1134:
1135: Will call &store_aggregates() to increment totals for attempts,
1136: students, and corrects, if running user has student role.
1137:
1.435 jms 1138: =cut
1139:
1140:
1.65 albertel 1141: sub finalize_storage {
1.357 albertel 1142: my ($given_symb) = @_;
1.159 albertel 1143: my $result;
1.289 albertel 1144: if (%Apache::lonhomework::results) {
1.323 albertel 1145: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1146: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1147: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1148: &Apache::lonnet::whichuser($given_symb);
1.562 raeburn 1149: my ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref,$total,$possible,$dopassback);
1.333 albertel 1150: if ($env{'request.state'} eq 'construct'
1151: || $symb eq ''
1152: || $Apache::lonhomework::type eq 'practice') {
1153: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1154: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1155: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1156: $namespace,'',$domain,$name);
1.159 albertel 1157: &Apache::lonxml::debug('Construct Store return message:'.$result);
1158: } else {
1.560 raeburn 1159: my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.524 raeburn 1160: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1161: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1162: (!defined($env{'form.grade_courseid'}))) {
1.560 raeburn 1163: if ($env{'request.lti.login'}) {
1164: my ($map)=&Apache::lonnet::decode_symb($symb);
1165: $map = &Apache::lonnet::clutter($map);
1166: ($passback,$ltiscope,$ltimap,$ltisymb,$ltiref) =
1167: &needs_lti_passback($courseid,$symb,$map);
1168: }
1.524 raeburn 1169: if ($Apache::lonhomework::history{'version'}) {
1170: $laststore = $Apache::lonhomework::history{'version'}.'='.
1171: $Apache::lonhomework::history{'timestamp'};
1172: } else {
1173: $laststore = '0=0';
1174: }
1.560 raeburn 1175: %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.524 raeburn 1176: if ($record{'version'}) {
1177: my ($newversion,$oldversion,$oldtimestamp);
1178: if ($Apache::lonhomework::history{'version'}) {
1179: $oldversion = $Apache::lonhomework::history{'version'};
1180: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1181: } else {
1182: $oldversion = 0;
1183: $oldtimestamp = 0;
1184: }
1185: if ($record{'version'} > $oldversion) {
1186: if ($record{'timestamp'} >= $oldtimestamp) {
1187: $laststore = $record{'version'}.'='.$record{'timestamp'};
1188: $newversion = $record{'version'} + 1;
1189: $checkedparts = 1;
1190: foreach my $key (keys(%Apache::lonhomework::results)) {
1191: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1192: my $part = $1;
1193: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1194: push(@parts,$part);
1195: }
1196: }
1197: }
1198: if (@parts) {
1199: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1200: \%record,\@parts,$newversion,
1201: $oldversion);
1202: if (@parts_to_hide) {
1203: foreach my $part (@parts_to_hide) {
1204: $postcorrect{$part} = 1;
1205: &Apache::inputtags::hidealldata($part);
1206: }
1207: }
1208: }
1209: }
1210: }
1211: }
1212: }
1.159 albertel 1213: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1214: $symb,$courseid,$domain,$name,$laststore);
1215: if ($result =~ /^delay\:(\d+)$/) {
1216: my $numtrans = $1;
1217: my ($oldversion) = split(/=/,$laststore);
1218: if ($numtrans) {
1219: my $newversion = $oldversion + 1 + $numtrans;
1220: my @possparts;
1221: if ($checkedparts) {
1222: foreach my $part (@parts) {
1223: unless ($postcorrect{$part}) {
1224: push(@possparts,$part);
1225: }
1226: }
1227: } else {
1228: foreach my $key (keys(%Apache::lonhomework::results)) {
1229: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1230: my $part = $1;
1231: unless ($postcorrect{$part}) {
1232: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1233: push(@possparts,$part);
1234: }
1235: }
1236: }
1237: }
1238: }
1239: if (@possparts) {
1240: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1241: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1242: \%newrecord,\@possparts,$newversion,
1243: $oldversion);
1244: if (@parts_to_hide) {
1245: my $partslist = join(',',@parts_to_hide);
1246: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1247: }
1248: }
1249: }
1250: }
1.562 raeburn 1251: if ($passback) {
1252: foreach my $key (keys(%Apache::lonhomework::results)) {
1253: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1254: my $part = $1;
1255: if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1256: ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1257: ($Apache::lonhomework::results{"resource.$part.tries"})) {
1258: $dopassback = 1;
1259: last;
1260: }
1261: }
1262: }
1263: }
1264: if (($dopassback) && ($ltiscope eq 'resource') && ($ltisymb eq $symb)) {
1.560 raeburn 1265: $total = 0;
1266: $possible = 0;
1267: my $navmap = Apache::lonnavmaps::navmap->new();
1268: if (ref($navmap)) {
1269: my $res = $navmap->getBySymb($symb);
1270: if (ref($res)) {
1271: my $partlist = $res->parts();
1272: if (ref($partlist) eq 'ARRAY') {
1273: foreach my $part (@{$partlist}) {
1274: unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1275: next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1276: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1277: $possible += $weight;
1278: if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1279: my $awarded = $record{"resource.$part.awarded"};
1280: if ($awarded) {
1281: $total += $weight * $awarded;
1282: }
1283: }
1284: }
1285: }
1286: }
1287: }
1288: }
1289: foreach my $key (keys(%Apache::lonhomework::results)) {
1290: if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1291: my $part = $1;
1292: my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1293: $possible += $weight;
1294: my $awarded = $Apache::lonhomework::results{$key};
1295: if ($awarded) {
1296: $total += $weight * $awarded;
1297: }
1298: }
1299: }
1300: }
1.159 albertel 1301: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1302: &store_aggregates($symb,$courseid);
1.562 raeburn 1303: if ($dopassback) {
1.560 raeburn 1304: my $scoreformat = 'decimal';
1305: if (ref($ltiref) eq 'HASH') {
1306: if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1307: $scoreformat = $1;
1308: }
1309: }
1310: my $ltigrade = {
1311: 'lti' => $ltiref,
1312: 'cid' => $courseid,
1313: 'uname' => $env{'user.name'},
1314: 'udom' => $env{'user.domain'},
1315: 'pbid' => $env{'request.lti.passbackid'},
1316: 'pburl' => $env{'request.lti.passbackurl'},
1317: 'scope' => $ltiscope,
1318: 'ltimap' => $ltimap,
1319: 'ltisymb' => $ltisymb,
1320: 'format' => $scoreformat,
1321: };
1322: if ($ltiscope eq 'resource') {
1323: $ltigrade->{'total'} = $total;
1324: $ltigrade->{'possible'} = $possible;
1325: }
1326: push(@Apache::lonhomework::ltipassback,$ltigrade);
1327: }
1.159 albertel 1328: }
1.323 albertel 1329: } else {
1330: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1331: }
1.159 albertel 1332: return $result;
1.65 albertel 1333: }
1334:
1.560 raeburn 1335: sub needs_lti_passback {
1336: my ($courseid,$symb,$map) = @_;
1337: if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1338: if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1339: my ($cdom,$cnum) = ($1,$2);
1340: my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1341: if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1342: if ($lti{$env{'request.lti.login'}}{'passback'}) {
1343: my ($ltiscope,$ltiuri,$ltisymb) =
1344: &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1345: $cdom,$cnum,1);
1346: my ($passback,$ltimap);
1347: if ($ltiscope eq 'resource') {
1348: if ($ltisymb eq $symb) {
1349: $passback = 1;
1350: }
1351: } elsif ($ltiscope eq 'map') {
1352: if ($ltiuri eq $map) {
1353: $passback = 1;
1354: $ltimap = $map;
1355: }
1356: } elsif ($ltiscope eq 'course') {
1357: if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1358: $passback = 1;
1359: }
1360: }
1361: return ($passback,$ltiscope,$ltimap,$ltisymb,$lti{$env{'request.lti.login'}});
1362: }
1363: }
1364: }
1365: }
1366: return;
1367: }
1368:
1.435 jms 1369: =pod
1370:
1.524 raeburn 1371: =item check_correctness_changes()
1372:
1373: For all parts for which current results contain a solved status
1374: of "incorrect_attempted", check if there was a transaction in which
1375: solved was set to "correct_by_student" in the time since the last
1376: transaction (retrieved when &initialize_storage() was called i.e.,
1377: when &start_problem() was called), unless:
1378: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1379: (b) problemstatus is set to no or no_feedback_ever
1380: If such a transaction exists, and did not occur after "reset status"
1381: by a user with grading privileges, then the current transaction is an
1382: example of an out-of-order transaction (i.e., incorrect occurring after
1383: correct). Accordingly, the current transaction should be hidden.
1384:
1385: =cut
1386:
1387:
1388: sub check_correctness_changes {
1389: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1390: my @parts_to_hide;
1391: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1392: return @parts_to_hide;
1393: }
1394: if (@{$parts}) {
1395: my $usec;
1396: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1397: ($env{'request.course.id'} eq $courseid)) {
1398: $usec = $env{'request.course.sec'};
1399: } else {
1400: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1401: }
1402: foreach my $id (@{$parts}) {
1403: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1404: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1405: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1406: my $reset;
1407: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1408: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1409: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1410: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1411: $reset = 1;
1412: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1413: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1414: unless ($reset) {
1415: push(@parts_to_hide,$id);
1416: last;
1417: }
1418: }
1419: }
1420: }
1421: }
1422: return @parts_to_hide;
1423: }
1424:
1425: =pod
1426:
1.435 jms 1427: item store_aggregates()
1428:
1429: Sends hash of values to be incremented in nohist_resourcetracker.db
1430: for the course. Increments total number of attempts, unique students
1431: and corrects for each part for an instance of a problem, as appropriate.
1432:
1433: =cut
1434:
1.285 raeburn 1435: sub store_aggregates {
1436: my ($symb,$courseid) = @_;
1.479 raeburn 1437: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1438: my @parts;
1.288 albertel 1439: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1440: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1441: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1442: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1443: push(@parts, $1);
1.285 raeburn 1444: }
1445: }
1.286 albertel 1446: foreach my $part (@parts) {
1.470 raeburn 1447: if ($env{'request.role'} =~/^st/) {
1448: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1449: eq 'APPROX_ANS' ||
1450: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1451: eq 'EXACT_ANS') {
1452: $aggregate{$symb."\0".$part."\0correct"} = 1;
1453: }
1454: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1455: $aggregate{$symb."\0".$part."\0users"} = 1;
1456: } else {
1457: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1458: if ($last_reset) {
1459: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1460: $aggregate{$symb."\0".$part."\0users"} = 1;
1461: }
1462: }
1463: }
1464: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1465: }
1.470 raeburn 1466: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1467: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1468: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1469: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1470: $randtrycounter{$symb."\0".$part} = 1;
1471: } else {
1472: $anoncounter{$symb."\0".$part} = 1;
1473: }
1.545 raeburn 1474: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1475: if ($needsrelease) {
1.470 raeburn 1476: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1477: if ($curr_required eq '') {
1.471 raeburn 1478: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1479: } else {
1480: my ($currmajor,$currminor) = split(/\./,$curr_required);
1481: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1482: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1483: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1484: }
1.292 raeburn 1485: }
1486: }
1.285 raeburn 1487: }
1488: }
1.526 raeburn 1489: if (keys(%aggregate) > 0) {
1.289 albertel 1490: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1491: $cdomain,$cname);
1492: }
1.472 raeburn 1493: if (keys(%anoncounter) > 0) {
1.481 raeburn 1494: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1495: $cdomain,$cname);
1.472 raeburn 1496: }
1.479 raeburn 1497: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1498: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1499: $cdomain,$cname);
1.479 raeburn 1500: }
1.292 raeburn 1501: }
1.289 albertel 1502:
1.557 raeburn 1503: sub access_status_msg {
1504: my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1505: my $msg;
1506: if ($target eq 'web') {
1507: if ($status eq 'UNAVAILABLE') {
1508: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1509: } elsif ($status eq 'NOT_IN_A_SLOT') {
1510: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1511: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1512: ($status eq 'NOTRESERVABLE')) {
1513: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1514: } elsif ($status ne 'NOT_YET_VIEWED') {
1515: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1516: }
1517: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1518: $msg.=&mt('The problem ').$accessmsg;
1519: } elsif ($status eq 'UNCHECKEDOUT') {
1520: $msg.=&checkout_msg();
1521: } elsif ($status eq 'NOT_YET_VIEWED') {
1522: $msg.=&firstaccess_msg($accessmsg,$symb);
1523: } elsif ($status eq 'NOT_IN_A_SLOT') {
1524: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1525: } elsif ($status eq 'RESERVABLE') {
1526: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1527: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1528: '<br />'.
1529: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1530: } elsif ($status eq 'RESERVABLE_LATER') {
1531: $msg.=&mt('Window to make a reservation will open [_1].',
1532: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1533: } elsif ($status eq 'NOTRESERVABLE') {
1534: $msg.=&mt('Not available to make a reservation.');
1535: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1536: if ($ipused) {
1537: $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");
1538: } else {
1539: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1540: &mt('Somebody else has already used this particular computer for that purpose.');
1541: }
1542: }
1543: $msg.='<br />';
1544: } elsif ($target eq 'tex') {
1545: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1546: : '\begin{minipage}{\textwidth}';
1547:
1548: $msg ='\noindent \vskip 1 mm '.
1549: $startminipage.'\vskip 0 mm';
1550: if ($status eq 'UNAVAILABLE') {
1551: $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1552: } else {
1553: $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1554: }
1555: }
1556: return $msg;
1557: }
1558:
1559: sub checkin_prompt {
1560: my ($target,$slot_name,$slot,$type) = @_;
1561: my $result;
1562: if ($target eq 'web') {
1563: $result = &Apache::bridgetask::proctor_validation_screen($slot);
1564: } elsif ($target eq 'grade') {
1565: if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1566: $result = &mt('An error occurred during check-in');
1567: }
1568: }
1569: return $result;
1570: }
1571:
1572: sub selfcheckin_resource {
1573: my ($resource_due,$slot_name,$slot,$symb) = @_;
1574: if ($slot_name ne '') {
1575: my $checked_in =
1576: $Apache::lonhomework::history{'resource.0.checkedin'};
1577: if ($checked_in eq '') {
1578: # unproctored slot access, self checkin
1579: my $needsiptied;
1580: if (ref($slot)) {
1581: $needsiptied = $slot->{'iptied'};
1582: }
1583: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1584: $slot_name,$needsiptied);
1585: if ($check =~ /^error: /) {
1586: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1587: } else {
1588: $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1589: }
1590: }
1591: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1592: if ($slot->{'starttime'} < time()) {
1593: if (!$resource_due) {
1594: $resource_due = $slot->{'endtime'};
1595: } elsif ($slot->{'endtime'} < $resource_due) {
1596: $resource_due = $slot->{'endtime'};
1597: }
1598: }
1599: }
1600: }
1601: return $resource_due;
1602: }
1603:
1.65 albertel 1604: sub checkout_msg {
1.211 albertel 1605: my %lt=&Apache::lonlocal::texthash(
1606: 'resource'=>'The resource needs to be checked out',
1607: '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.',
1608: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1609: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1610: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1611: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1612: return (<<ENDCHECKOUT);
1.211 albertel 1613: <h2>$lt{'resource'}</h2>
1614: <p>$lt{'id_expln'}</p>
1.449 bisitz 1615: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1616: <form name="checkout" method="post" action="$uri">
1.91 albertel 1617: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1618: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1619: </form>
1620: ENDCHECKOUT
1621: }
1622:
1.252 albertel 1623: sub firstaccess_msg {
1.253 albertel 1624: my ($time,$symb)=@_;
1.414 albertel 1625: my $result;
1626: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1627: if ($interval[1] eq 'map') {
1628: my ($map)=&Apache::lonnet::decode_symb($symb);
1629: my $foldertitle=&Apache::lonnet::gettitle($map);
1630:
1631: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1632: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1633: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1634: ,$foldertitle,$time)."</p>";
1.414 albertel 1635: } elsif ($interval[1] eq 'course') {
1636: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1637: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1638: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1639: ,$course,$time)."</p>";
1.414 albertel 1640: } else {
1641: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1642: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1643: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1644: ,$title,$time)."</p>";
1.414 albertel 1645: }
1.352 albertel 1646: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1647: my $buttontext = &mt('Show Resource');
1648: my $timertext = &mt('Start Timer?');
1.414 albertel 1649: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1650: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1651: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1652: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1653: </form>
1654: ENDCHECKOUT
1.414 albertel 1655: return $result;
1.252 albertel 1656: }
1657:
1.204 albertel 1658: sub init_problem_globals {
1659: my ($type)=@_;
1660: #initialize globals
1.308 foxr 1661: # For problems, we start out in part 0 (outside a <part> tag).
1662: # and part 0 is used to describe the main body of the <problem>
1663: #
1.204 albertel 1664: if ($type eq 'problem') {
1665: $Apache::inputtags::part='0';
1666: @Apache::inputtags::partlist=('0');
1.405 albertel 1667: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1668: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1669:
1.266 albertel 1670: } elsif ($type eq 'library') {
1.204 albertel 1671: $Apache::inputtags::part='';
1672: @Apache::inputtags::partlist=();
1.405 albertel 1673: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1674: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1675:
1.304 albertel 1676: } elsif ($type eq 'Task') {
1677: $Apache::inputtags::part='0';
1678: @Apache::inputtags::partlist=('0');
1.405 albertel 1679: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1680: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1681: }
1.477 www 1682: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1683: @Apache::inputtags::responselist = ();
1684: @Apache::inputtags::importlist = ();
1685: @Apache::inputtags::previous=();
1686: @Apache::inputtags::previous_version=();
1.536 raeburn 1687: $Apache::inputtags::leniency='';
1.204 albertel 1688: $Apache::structuretags::printanswer='No';
1689: @Apache::structuretags::whileconds=();
1690: @Apache::structuretags::whilebody=();
1691: @Apache::structuretags::whileline=();
1692: $Apache::lonhomework::scantronmode=0;
1.566 raeburn 1693: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1694: undef($Apache::lonhomework::name);
1.358 albertel 1695: undef($Apache::lonhomework::default_type);
1696: undef($Apache::lonhomework::type);
1.204 albertel 1697: }
1698:
1699: sub reset_problem_globals {
1700: my ($type)=@_;
1701: undef(%Apache::lonhomework::history);
1702: undef(%Apache::lonhomework::results);
1703: undef($Apache::inputtags::part);
1.536 raeburn 1704: undef($Apache::inputtags::leniency);
1.498 raeburn 1705: if ($type eq 'Task') {
1706: undef($Apache::inputtags::slot_name);
1.528 raeburn 1707: } elsif ($type eq 'problem') {
1708: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1709: }
1.208 albertel 1710: #don't undef this, lonhomework.pm takes care of this, we use this to
1711: #detect if we try to do 2 problems in one file
1712: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1713: undef($Apache::lonhomework::name);
1.358 albertel 1714: undef($Apache::lonhomework::default_type);
1715: undef($Apache::lonhomework::type);
1716: undef($Apache::lonhomework::scantronmode);
1.566 raeburn 1717: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1718: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1719: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1720: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1721: }
1722:
1.241 albertel 1723: sub set_problem_state {
1.240 albertel 1724: my ($part)=@_;
1.284 albertel 1725: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1726: $Apache::lonhomework::history{"resource.$part.solved"}=
1727: 'correct_by_student';
1728: }
1729: }
1730:
1.241 albertel 1731: sub get_problem_status {
1732: my ($part)=@_;
1.267 albertel 1733: my $problem_status;
1.284 albertel 1734: if ($env{'request.state'} eq 'construct' &&
1735: defined($env{'form.problemstatus'})) {
1736: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1737: } else {
1738: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1739: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1740: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1741: }
1742: return $problem_status;
1743: }
1744:
1.9 albertel 1745: sub start_problem {
1.326 albertel 1746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1747:
1.311 foxr 1748: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1749: if (!$Apache::lonxml::metamode) {
1750: &Apache::lonxml::startredirection();
1751: }
1.311 foxr 1752:
1.308 foxr 1753: # Problems don't nest and we don't allow more than one <problem> in
1754: # a .problem file.
1755: #
1.184 albertel 1756: if ( $Apache::inputtags::part ne '' ||
1757: $Apache::lonhomework::parsing_a_problem) {
1758: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1759: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1760: return '';
1761: }
1.184 albertel 1762:
1763: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1764: &init_problem_globals('problem');
1.166 albertel 1765:
1.284 albertel 1766: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1767: $Apache::lonhomework::scantronmode=1;
1768: }
1.161 albertel 1769:
1.159 albertel 1770: if ($target ne 'analyze') {
1.415 raeburn 1771: my $type = &Apache::lonnet::EXT('resource.0.type');
1772: $Apache::lonhomework::type=$type;
1.284 albertel 1773: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1774: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1775: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1776: }
1.332 albertel 1777: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1778: }
1.164 albertel 1779: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1780: my $uri=$env{'request.uri'};
1.159 albertel 1781: if ($uri=~/\.(\w+)$/) {
1782: $Apache::lonhomework::type=$1;
1783: &Apache::lonxml::debug("Using type of $1");
1784: } else {
1785: $Apache::lonhomework::type='problem';
1786: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1787: }
1.87 albertel 1788: }
1.301 albertel 1789: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1790:
1.363 albertel 1791: &initialize_storage();
1.389 albertel 1792: if ($target ne 'analyze'
1793: && $env{'request.state'} eq 'construct') {
1794: &set_problem_state('0');
1795: }
1796:
1.366 albertel 1797: if ($target eq 'web') {
1798: &Apache::lonxml::debug(" grading history ");
1799: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1800: }
1.363 albertel 1801:
1.159 albertel 1802: #added vars to the scripting enviroment
1.213 albertel 1803: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1804: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1805: &Apache::run::run($expression,$safeeval);
1.159 albertel 1806: my $status;
1807: my $accessmsg;
1.508 raeburn 1808: my $resource_due;
1.540 raeburn 1809: my $ipused;
1.159 albertel 1810:
1.343 albertel 1811: my $name= &get_resource_name($parstack,$safeeval);
1.561 raeburn 1812: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1813:
1814: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1815: $target eq 'tex') {
1816: if ($env{'form.markaccess'}) {
1817: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1818: my ($timelimit) = split(/_/,$interval[0]);
1.561 raeburn 1819: my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1820: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1821: $firstaccres = $is_set;
1822: }
1.506 raeburn 1823: }
1824: }
1825:
1.354 albertel 1826: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1827: || $target eq 'edit') {
1.528 raeburn 1828: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1829: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1830: $name);
1.552 raeburn 1831: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1832: ($target eq 'answer')) {
1.528 raeburn 1833: my ($symb)= &Apache::lonnet::whichuser();
1.568 raeburn 1834: if ($symb ne '') {
1835: my $navmap = Apache::lonnavmaps::navmap->new();
1836: if (ref($navmap)) {
1837: my $res = $navmap->getBySymb($symb);
1838: if (ref($res)) {
1839: $probpartlist = $res->parts();
1840: }
1.528 raeburn 1841: }
1842: }
1.350 albertel 1843: }
1844:
1.552 raeburn 1845: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1846: $target eq 'tex') {
1847:
1848: my ($symb)= &Apache::lonnet::whichuser();
1849: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1850: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1851: push (@Apache::inputtags::status,$status);
1852: }
1853:
1.284 albertel 1854: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1855:
1.479 raeburn 1856: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1857: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1858: $target eq 'tex') {
1.479 raeburn 1859:
1.568 raeburn 1860: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1861: #handle rand seed in construction space
1.568 raeburn 1862: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1863: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1864: if ($partorder ne '') {
1865: @{$probpartlist} = split(/,/,$partorder);
1866: }
1867: }
1.528 raeburn 1868: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1869: if (($target eq 'grade') && &Apache::response::submitted()) {
1870: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1871: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1872: } else {
1873: my @parts;
1874: if (ref($probpartlist) eq 'ARRAY') {
1875: @parts = @{$probpartlist};
1876: }
1877: unless (@parts) {
1.529 raeburn 1878: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1879: }
1880: }
1881: }
1.479 raeburn 1882:
1.333 albertel 1883: if ($env{'request.state'} ne "construct" &&
1884: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.565 raeburn 1885: my $rndseedval = $rndseed;
1886: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1887: $rndseedval = $env{'form.rndseed'};
1888: }
1.162 albertel 1889: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.565 raeburn 1890: $rndseedval.'" />'.
1.551 damieng 1891: '<button type="submit" name="resetdata"
1892: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1893: if (exists($env{'form.username'})) {
1894: $form_tag_start.=
1.164 albertel 1895: '<input type="hidden" name="username"
1.284 albertel 1896: value="'.$env{'form.username'}.'" />';
1.334 albertel 1897: }
1.462 raeburn 1898: if ($env{'request.role.adv'}) {
1899: $form_tag_start.= ' <label class="LC_nobreak">'
1900: .'<input type="checkbox" name="showallfoils"';
1901: if (defined($env{'form.showallfoils'})) {
1902: $form_tag_start.=' checked="checked"';
1903: }
1904: $form_tag_start.= ' /> '
1905: .&mt('Show All Foils')
1906: .'</label>';
1907: }
1.417 www 1908: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1909: $form_tag_start.=&practice_problem_header();
1.417 www 1910: }
1.462 raeburn 1911: $form_tag_start.='<hr />';
1.570 ! raeburn 1912: }
1.565 raeburn 1913: if (($env{'request.state'} ne "construct") &&
1914: ($Apache::lonhomework::type eq 'randomizetry') &&
1915: ($status eq 'CAN_ANSWER') &&
1916: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1917: (!$env{'request.role.adv'})) {
1.549 raeburn 1918: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.566 raeburn 1919: my @parts;
1920: if (ref($probpartlist) eq 'ARRAY') {
1921: @parts = @{$probpartlist};
1922: }
1923: unless (@parts) {
1924: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1925: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1926: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1927: }
1.479 raeburn 1928: }
1.324 albertel 1929:
1.159 albertel 1930: my $expression='$external::datestatus="'.$status.'";';
1931: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1932: &Apache::run::run($expression,$safeeval);
1933: &Apache::lonxml::debug("Got $status");
1.324 albertel 1934:
1.159 albertel 1935: if (( $status eq 'CLOSED' ) ||
1936: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1937: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1938: ( $status eq 'BANNED') ||
1.216 albertel 1939: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1940: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1941: ( $status eq 'NOTRESERVABLE') ||
1942: ( $status eq 'RESERVABLE') ||
1943: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1944: ( $status eq 'INVALID_ACCESS') ||
1945: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1946: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1947: $style);
1.561 raeburn 1948: if (($status eq 'NOT_YET_VIEWED') && ($firstaccres)) {
1949: $result .= '<p class="LC_error">'.
1950: &mt('A problem occurred when trying to start the timer.').'</p>';
1951: }
1.557 raeburn 1952: $result .= &access_status_msg('problem',$status,$symb,$target,$ipused,$accessmsg);
1.324 albertel 1953: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1954: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1955: $style);
1.557 raeburn 1956: $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 1957: } elsif ($target eq 'web') {
1.508 raeburn 1958: if ($status eq 'CAN_ANSWER') {
1959: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1960: if ($slot_name ne '') {
1.557 raeburn 1961: $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
1962: $env{'request.symb'});
1.508 raeburn 1963: }
1964: if ($resource_due) {
1965: my $time_left = $resource_due - time();
1966: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1967: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1968: }
1969: }
1970: }
1.368 albertel 1971: $result.="\n $form_tag_start \t".
1.227 albertel 1972: '<input type="hidden" name="submitted" value="yes" />';
1973: # create a page header and exit
1.284 albertel 1974: if ($env{'request.state'} eq "construct") {
1.544 damieng 1975: if ($env{'form.inhibitmenu'} eq 'yes') {
1976: # error messages can be useful in any case
1977: $result.= &Apache::lonxml::message_location();
1978: } else {
1.542 raeburn 1979: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1980: }
1.428 raeburn 1981: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1982: $result.= '<button type="submit" name="resetdata" '.
1983: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1984: &practice_problem_header().'<hr />';
1.564 raeburn 1985: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1986: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1987: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1988: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1989: }
1.227 albertel 1990: }
1991: # if we are viewing someone else preserve that info
1.284 albertel 1992: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1993: foreach my $field ('symb','courseid','domain','username') {
1994: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1995: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1996: }
1.479 raeburn 1997: foreach my $field ('trial','questiontype') {
1998: if ($env{"form.grade_$field"} ne '') {
1999: $result .= '<input type="hidden" name="grade_'.$field.
2000: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
2001: }
2002: }
1.159 albertel 2003: }
1.490 raeburn 2004: if ($env{'form.grade_imsexport'}) {
2005: $result = '';
2006: }
1.159 albertel 2007: } elsif ($target eq 'tex') {
1.319 foxr 2008: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2009: $result .= &select_metadata_hyphenation();
1.99 sakharuk 2010: }
1.159 albertel 2011: } elsif ($target eq 'edit') {
1.343 albertel 2012: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2013: $Apache::lonxml::warnings_error_header=
2014: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 2015: my $temp=&Apache::edit::insertlist($target,$token);
2016: $result.=$temp;
2017: } elsif ($target eq 'modified') {
2018: $result=$token->[4];
2019: } else {
2020: # page_start returned a starting result, delete it if we don't need it
2021: $result = '';
1.99 sakharuk 2022: }
1.159 albertel 2023: return $result;
1.9 albertel 2024: }
2025:
2026: sub end_problem {
1.159 albertel 2027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2028: my $result;
1.310 foxr 2029:
1.321 albertel 2030: if (!$Apache::lonxml::metamode) {
2031: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2032: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2033: }
1.319 foxr 2034:
2035: if ($target eq 'tex') {
1.321 albertel 2036: # Figure out the front matter and replace the
2037: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2038: # this in end_problem because whether or not we display due
2039: # dates depends on whether due dates have already been
2040: # displayed in the problem parts.
2041:
1.319 foxr 2042: my $frontmatter = '';
2043: my $startminipage = '';
2044: if (not $env{'form.problem_split'}=~/yes/) {
2045: $startminipage = '\begin{minipage}{\textwidth}';
2046: }
2047: my $id = $Apache::inputtags::part;
2048: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2049: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2050: my @packages = split(/,/,$packages);
1.319 foxr 2051: my $allow_print_points = 0;
2052: foreach my $partial_key (@packages) {
2053: if ($partial_key=~m/^part_0$/) {
2054: $allow_print_points=1;
2055: }
2056: }
2057: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2058: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2059: if (lc($env{'course.'.$env{'request.course.id'}.
2060: '.disableexampointprint'}) eq 'yes') {
2061: $allow_print_points=0;
2062: }
2063: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2064: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.500 foxr 2065: &clear_required_languages();
1.319 foxr 2066: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2067: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2068:
2069: # Figure out what the due date is and if we need to print
2070: # it in the problem header. We have been logging the
2071: # last due date written to file.
2072:
2073: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2074: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2075: my $duedate_text = &mt('Due date: [_1]'
2076: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2077: my $temp_file;
2078: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2079:
2080: # Figure out what the last printed due date is or set it
2081: # to the epoch if no duedates have been printed.
2082:
2083: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2084: if (-e $filename) {
2085: $temp_file = Apache::File->new($filename);
2086: my @due_file = <$temp_file>;
2087: $due_file_content = $due_file[$#due_file];
2088: chomp $due_file_content;
2089: }
2090:
2091: # We display the due date iff it is not the same as the last
2092: # duedate in problem header ($due_file_content), and
2093: # none of our parts displayed a duedate.
2094: #
2095: my $parts_with_displayduedate;
2096: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2097: $parts_with_displayduedate =
2098: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2099: } else {
2100: $parts_with_displayduedate = 0;
2101: }
2102: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2103: $temp_file = Apache::File->new('>'.$filename);
2104: print $temp_file "$duetime\n";
2105: if (not $env{'request.symb'} =~ m/\.page_/) {
2106: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2107: $frontmatter .= $begin_doc.
1.448 bisitz 2108: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2109: } else {
2110: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2111: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2112: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2113: }
1.319 foxr 2114: }
2115: } else {
1.448 bisitz 2116: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2117: }
2118: } else {
2119: if (not $env{'request.symb'} =~ m/\.page_/) {
2120: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2121: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2122: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2123: }
1.319 foxr 2124: } else {
1.381 albertel 2125: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2126: }
2127: }
2128: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
2129: }
2130:
1.159 albertel 2131: my $status=$Apache::inputtags::status['-1'];
2132: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2133: $target eq 'tex') {
1.249 albertel 2134: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2135: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2136: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2137: &Apache::inputtags::grade;
1.324 albertel 2138: } elsif ($status eq 'NEEDS_CHECKIN') {
2139: # no need to grade, and don't want to hide data
1.249 albertel 2140: } else {
2141: # move any submission data to .hidden
2142: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2143: }
1.159 albertel 2144: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2145: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2146: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2147: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2148: # if part is zero, no <part>s existed, so we need show the current
2149: # grading status
2150: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2151: $result.= $gradestatus;
2152: }
2153: if (
1.284 albertel 2154: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2155: ($target eq 'answer') || ($target eq 'tex')
2156: ) {
1.490 raeburn 2157: if (($target ne 'tex') &&
2158: ($env{'form.answer_output_mode'} ne 'tex') &&
2159: (!$env{'form.grade_imsexport'})) {
1.254 www 2160: $result.="</form>";
1.159 albertel 2161: }
2162: if ($target eq 'web') {
1.507 raeburn 2163: #
2164: # Closing </body></html> not added by end_page().
2165: # Added separately at end of this routine, after added
2166: # <script></script> so document will be valid xhtml.
2167: #
1.546 raeburn 2168: my $showdisc = 1;
1.547 raeburn 2169: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
2170: (!$env{'request.role.adv'})) {
2171: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 2172: $showdisc = 0;
1.547 raeburn 2173: my ($symb)= &Apache::lonnet::whichuser();
2174: if ($symb) {
2175: my $navmap = Apache::lonnavmaps::navmap->new();
2176: if (ref($navmap)) {
2177: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
2178: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 2179: # and there are no tries left
1.547 raeburn 2180: unless ($hastries) {
2181: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
2182: my ($score,$incomplete) =
2183: &Apache::lonplacementtest::check_completion(undef,undef,1);
2184: if (!$incomplete) {
2185: $result .= &Apache::lonplacementtest::showresult(1,1);
2186: } elsif ($incomplete < 100) {
2187: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
2188: }
2189: } else {
2190: # For Placement Tests score is displayed if test has just been completed
2191: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
2192: if (!$incomplete) {
2193: $result.= &Apache::lonplacementtest::showresult(1,1);
2194: }
2195: }
2196: }
2197: }
2198: }
1.546 raeburn 2199: }
2200: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2201: 'notbody' => 1});
1.159 albertel 2202: } elsif ($target eq 'tex') {
1.178 sakharuk 2203: my $endminipage = '';
1.284 albertel 2204: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2205: $endminipage = '\end{minipage}';
2206: }
1.284 albertel 2207: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2208: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2209: } else {
1.262 sakharuk 2210: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2211: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2212: $result .= $endminipage.'\end{document} ';
2213: } else {
1.382 albertel 2214: $result .= $endminipage;
1.262 sakharuk 2215: }
1.159 albertel 2216: }
2217: }
2218: }
1.476 www 2219: if ($target eq 'web') {
1.566 raeburn 2220: $result.=&Apache::functionplotresponse::init_script();
2221: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2222: my ($symb) = &Apache::lonnet::whichuser();
2223: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2224: ($status eq 'CAN_ANSWER')) {
2225: unless (@Apache::inputtags::partlist > 1) {
2226: $result.= <<"ENDJS";
2227: <script type="text/javascript">
2228: // <![CDATA[
2229: \$(document).ready(function() {
2230: \$('#LC_randomizetry_header').css('display','block');
2231: });
2232: // ]]>
2233: </script>
2234: ENDJS
2235: }
2236: }
2237: }
1.476 www 2238: }
1.159 albertel 2239: if ($target eq 'grade') {
2240: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2241: &finalize_storage();
2242: }
1.284 albertel 2243: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2244: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2245: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2246: # normally we get it from above, but in CSTR
1.172 albertel 2247: # we always show answer mode too.
1.159 albertel 2248: }
2249: } elsif ($target eq 'meta') {
2250: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2251: @Apache::inputtags::response=();
1.159 albertel 2252: $result=&Apache::response::mandatory_part_meta;
2253: }
1.559 raeburn 2254: $result.=&Apache::response::meta_part_order('problem');
1.258 albertel 2255: $result.=&Apache::response::meta_response_order();
1.159 albertel 2256: } elsif ($target eq 'edit') {
2257: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2258: $result .= &problem_edit_footer();
1.320 albertel 2259: } elsif ($target eq 'modified') {
2260: $result .= $token->[2];
1.159 albertel 2261: }
1.155 albertel 2262:
1.284 albertel 2263: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2264: &Apache::inputtags::check_for_duplicate_ids();
2265: }
1.204 albertel 2266:
2267: &reset_problem_globals('problem');
1.159 albertel 2268:
1.502 foxr 2269: #
2270: # This shouild be just above the return so that the
2271: # time put in the javascript is as late as possible in the
2272: # computation:
2273: #
2274: if ($target eq 'web') {
2275: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2276: #
2277: # Closing tags delayed so any <script></script> tags
2278: # not in head can appear inside body, for valid xhtml.
2279: #
2280: $result .= "</body>\n</html>";
1.502 foxr 2281: }
1.159 albertel 2282: return $result;
1.48 albertel 2283: }
2284:
1.108 albertel 2285:
1.48 albertel 2286: sub start_library {
1.159 albertel 2287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2288: my ($result,$form_tag_start);
1.371 albertel 2289: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2290: &init_problem_globals('library');
2291: $Apache::lonhomework::type='problem';
2292: }
1.159 albertel 2293: if ($target eq 'edit') {
1.343 albertel 2294: ($result,$form_tag_start)=
2295: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2296: 'Edit');
2297: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2298: my $temp=&Apache::edit::insertlist($target,$token);
2299: $result.=$temp;
2300: } elsif ($target eq 'modified') {
2301: $result=$token->[4];
1.340 albertel 2302: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2303: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2304: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2305: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2306: ($result,$form_tag_start)=
2307: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2308: $name);
1.479 raeburn 2309: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2310: $result.=" \n $form_tag_start".
1.159 albertel 2311: '<input type="hidden" name="submitted" value="yes" />';
2312: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2313: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2314: $result.= '<button type="submit" name="resetdata" '.
2315: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2316: &practice_problem_header().'<hr />';
1.428 raeburn 2317: }
1.159 albertel 2318: }
2319: return $result;
1.48 albertel 2320: }
2321:
2322: sub end_library {
1.159 albertel 2323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2324: my $result='';
2325: if ($target eq 'edit') {
2326: $result=&problem_edit_footer();
1.371 albertel 2327: } elsif ($target eq 'web'
2328: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2329: && $env{'request.state'} eq "construct") {
1.349 albertel 2330: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.558 raeburn 2331: } elsif ($target eq 'meta') {
1.559 raeburn 2332: $result.=&Apache::response::meta_part_order('library');
1.558 raeburn 2333: $result.=&Apache::response::meta_response_order();
1.159 albertel 2334: }
1.371 albertel 2335: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2336: &reset_problem_globals('library');
2337: }
1.159 albertel 2338: return $result;
1.197 www 2339: }
2340:
2341: sub start_definetag {
1.326 albertel 2342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2343:
2344: my $result;
2345:
2346: my $name = $token->[2]->{'name'};
1.326 albertel 2347: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2348: if ($target eq 'web') {
2349: if ($name=~/^\//) {
2350: $result=
2351: '<br /><table class="LC_sty_end"><tr><th>'.
2352: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2353: } else {
2354: $result=
2355: '<br /><table class="LC_sty_begin"><tr><th>'.
2356: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2357: }
2358: $skip = &HTML::Entities::encode($skip, '<>&"');
2359: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2360: }
2361: return $result;
2362: }
2363:
2364: sub end_definetag {
2365: return '';
1.1 albertel 2366: }
2367:
2368: sub start_block {
1.201 albertel 2369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2370:
2371: my $result;
1.1 albertel 2372:
1.339 albertel 2373: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2374: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2375: my $code = $token->[2]->{'condition'};
1.385 albertel 2376: if (defined($code) && $code ne '') {
1.137 albertel 2377: if (!$Apache::lonxml::default_homework_loaded) {
2378: &Apache::lonxml::default_homework_load($safeeval);
2379: }
1.131 albertel 2380: $result = &Apache::run::run($code,$safeeval);
2381: &Apache::lonxml::debug("block :$code: returned :$result:");
2382: } else {
2383: $result='1';
2384: }
2385: if ( ! $result ) {
1.201 albertel 2386: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2387: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2388: }
2389: $result='';
2390: } elsif ($target eq 'edit') {
2391: $result .=&Apache::edit::tag_start($target,$token);
2392: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2393: $token,40);
2394: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2395: } elsif ($target eq 'modified') {
2396: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2397: $safeeval,'condition');
2398: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2399: }
1.131 albertel 2400: return $result;
1.1 albertel 2401: }
2402:
2403: sub end_block {
1.167 www 2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2405: my $result;
2406: if ($target eq "edit") {
2407: $result.= &Apache::edit::tag_end($target,$token,'');
2408: }
2409: return $result;
2410: }
1.500 foxr 2411: #
2412: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2413: # ...
2414: # </languageblock>
2415: #
2416: # This declares the intent to provide content that can be rendered in the
2417: # set of languages in the include specificatino but not in the exclude
2418: # specification. If a currently preferred language is in the include list
2419: # the content in the <languageblock>...</languageblock> is rendered
2420: # If the currently preferred language is in the exclude list,
2421: # the content in the <languageblock>..></languageblock is not rendered.
2422: #
2423: # Pathalogical case handling:
2424: # - Include specified, without the preferred language but exclude specified
2425: # also without the preferred langauge results in rendering the block.
2426: # - Exclude specified without include and excluden not containing a
2427: # preferred language renders the block.
2428: # - Include and exclude both specifying the preferred language does not
2429: # render the block.
2430: # - If neither include/exclude is specified, the block gets rendered.
2431: #
2432: # This tag has no effect when target is in {edit, modified}
2433: #
1.167 www 2434: sub start_languageblock {
1.201 albertel 2435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2436:
1.500 foxr 2437: my $result = '';
1.167 www 2438:
1.339 albertel 2439: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2440: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2441: my $include = $token->[2]->{'include'};
2442: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2443: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2444:
2445: # This should not even happen, since we should at least have the server language
2446:
2447: if (!$preferred_languages[0]) {
2448: $preferred_languages[0]='en';
2449: }
2450:
2451: # Now loop over all languages in order of preference
2452:
2453: my $render;
1.398 www 2454: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2455:
2456: # If neither include/nor exlude is present the block is going
2457: # to get rendered.
2458:
1.399 www 2459: my $found=0;
1.500 foxr 2460: $render=1;
2461:
2462: # If include is specified, don't render the block
2463: # unless the preferred language is included in the set.
2464:
1.398 www 2465: if ($include) {
1.500 foxr 2466: $render=0;
1.398 www 2467: foreach my $included_language (split(/\,/,$include)) {
2468: if ($included_language eq $preferred_language) {
1.500 foxr 2469: $render=1;
1.399 www 2470: $found=1;
1.500 foxr 2471: last; # Only need to find the first.
1.398 www 2472: }
2473: }
2474: }
1.500 foxr 2475: # Do we have an exclude argument?
2476: # If so, and one of the languages matches a preferred language
2477: # inhibit rendering the block. Note that in the pathalogical case the
2478: # author has specified a preferred language in both the include and exclude
2479: # attribte exclude is preferred.
2480:
1.398 www 2481: if ($exclude) {
1.500 foxr 2482: $render=1;
1.398 www 2483: foreach my $excluded_language (split(/\,/,$exclude)) {
2484: if ($excluded_language eq $preferred_language) {
1.500 foxr 2485: $render=0;
1.399 www 2486: $found=1;
1.500 foxr 2487: last; # Only need to find the first.
1.398 www 2488: }
2489: }
2490: }
1.500 foxr 2491: if ($found) {
2492: last; # Done on any match of include or exclude.
2493: }
1.398 www 2494: }
1.500 foxr 2495: # If $render not true skip the entire block until </languageblock>
2496: #
2497:
2498: if ( ! $render ) {
1.201 albertel 2499: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2500: $style);
2501: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2502: }
1.500 foxr 2503: # If $render is true, we've not skipped the contents of the <languageglock>
2504: # and the normal loncapa processing flow will render it as a matter of course.
2505:
1.167 www 2506: } elsif ($target eq 'edit') {
2507: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2508: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2509: $token,40);
1.211 albertel 2510: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2511: $token,40);
2512: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2513: } elsif ($target eq 'modified') {
2514: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2515: $safeeval,'include',
2516: 'exclude');
1.167 www 2517: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2518: }
2519: return $result;
2520: }
2521:
2522: sub end_languageblock {
1.170 www 2523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2524: my $result;
1.201 albertel 2525: if ($target eq "edit") {
1.170 www 2526: $result.= &Apache::edit::tag_end($target,$token,'');
2527: }
2528: return $result;
2529: }
1.500 foxr 2530: # languagblock specific tags:
2531: {
2532: # For chunks of a resource that has translations, this hash contains
2533: # the translations available indexed by language name.
2534: #
2535:
2536: my %available_texts;
1.170 www 2537:
1.500 foxr 2538: # <translated> starts a block of a resource that has multiple translations.
2539: # See the <lang> tag as well.
2540: # When </translated> is encountered if there is a translation for the
2541: # currently preferred language, that is rendered inthe web/tex/webgrade
2542: # targets. Otherwise, the default text is rendered.
2543: #
2544: # Note that <lang> is only registered for the duration of the
2545: # <translated>...</translated> block
2546: #
2547: # Pathalogical case handling:
2548: # - If there is no <lang> that specifies a 'default' and there is no
2549: # translation that matches a preferred language, nothing is rendered.
2550: # - Nested <translated>...</translated> might be linguistically supported by
2551: # XML due to the stack nature of tag registration(?) however the rendered
2552: # output will be incorrect because there is only one %available_texts
2553: # has and end_translated clears it.
2554: # - Material outside of a <lang>...</lang> block within the
2555: # <translated>...<translated> block won't render either e.g.:
2556: # <translated>
2557: # The following will be in your preferred langauge:
2558: # <lang which='en'>
2559: # This section in english
2560: # </lang>
2561: # <lang which='sgeiso'>
2562: # Hier es ist auf Deutsch.
2563: # </lang>
2564: # <lang which='sfriso'>
2565: # En Francais
2566: # </lang>
2567: # </translated>
2568: #
2569: # The introductory text prior to the first <lang> tag is not rendered.
2570: #
1.397 albertel 2571: sub start_translated {
2572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2573: &Apache::lonxml::register('Apache::structuretags',('lang'));
2574: undef(%available_texts);
2575: }
2576:
2577: sub end_translated {
2578: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2579: my $result;
2580: #show the translation on viewable targets
2581: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2582: # or non-viewable targets, if it's embedded in something that
2583: # wants the output
2584: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2585: && &Apache::lonxml::in_redirection() ) ) {
2586: my @possibilities = keys(%available_texts);
2587: my $which =
2588: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2589: if ($target eq 'tex') {
2590: $result = &select_hyphenation($which);
2591: }
2592: $result .= $available_texts{$which};
2593: if ($target eq 'tex') {
2594: $result .= &select_metadata_hyphenation(); # Restore original language.
2595: }
1.397 albertel 2596: }
2597: undef(%available_texts);
2598: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2599: return $result;
2600: }
2601:
1.500 foxr 2602: # <lang [which='language-name'] [other='lang1,lang2...']>
2603: # Specifies that the block contained within it is a translation
2604: # for a specific language specified by the 'which' attribute. The
2605: # 'other' attribute can be used by itself or in conjunction with
2606: # which to specify this tag _may_ be used as a translation for some
2607: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2608: # specifying that the block provides a translation for US (primary)
2609: # Canadian, Australian and UK Englush.
2610: #
2611: # Comment: this seems a bit silly why not just support a list of languages
2612: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2613: #
2614: # Effect:
2615: # The material within the <lang>..</lang> block is stored in the
2616: # specified set of $available_texts hash entries, the appropriate one
2617: # is selected at </translated> time.
2618: #
2619: # Pathalogical case handling:
2620: # If a language occurs multiple times within a <translated> block,
2621: # only the last one is rendered e.g.:
2622: #
2623: # <translated>
2624: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2625: # Red green color blindness is quite common affecting about 7.8% of
2626: # the male population, but onloy about .65% of the female population.
2627: # </lang>
2628: # Red green colour blindness is quite common affecting about 7.8% of
2629: # the male population, but onloy about .65% of the female population.
2630: # <lang which='seniso', other='senisoCA,senisoAU'>
2631: # </translated>
2632: #
2633: # renders the correct spelling of color (colour) for people who have specified
2634: # a preferred language that is one of the British Commonwealth languages
2635: # even though those are also listed as valid selections for the US english
2636: # <lang> block.
2637: #
1.397 albertel 2638: sub start_lang {
2639: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2640: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2641: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2642: &Apache::lonxml::startredirection();
2643: }
2644: return '';
2645: }
2646:
2647: sub end_lang {
2648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2649: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2650: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2651: my $result = &Apache::lonxml::endredirection();
2652: my $which = &Apache::lonxml::get_param('which',$parstack,
2653: $safeeval);
1.431 raeburn 2654: if ($which=~/\w/) {
2655: $available_texts{$which} = $result;
2656: }
2657: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2658: $safeeval);
2659: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2660: if ($language=~/\w/) {
2661: $available_texts{$language} = $result;
2662: }
1.427 bisitz 2663: }
2664:
1.397 albertel 2665: }
2666: return '';
2667: }
1.500 foxr 2668: } # end langauge block specific tags.
2669:
1.397 albertel 2670:
1.170 www 2671: sub start_instructorcomment {
1.201 albertel 2672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2673:
2674: my $result;
2675:
1.339 albertel 2676: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2677: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2678: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2679: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2680: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2681: $parser,$style);
1.170 www 2682: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2683: }
2684: $result='';
2685: } elsif ($target eq 'edit') {
2686: $result .=&Apache::edit::tag_start($target,$token);
2687: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2688: }
2689: return $result;
2690: }
2691:
2692: sub end_instructorcomment {
1.159 albertel 2693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2694: my $result;
2695: if ($target eq "edit") {
2696: $result.= &Apache::edit::tag_end($target,$token,'');
2697: }
2698: return $result;
1.4 tsai 2699: }
2700:
2701: sub start_while {
1.326 albertel 2702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2703:
1.160 albertel 2704: my $result;
1.339 albertel 2705: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2706: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2707: my $code = $token->[2]->{'condition'};
1.4 tsai 2708:
1.160 albertel 2709: push( @Apache::structuretags::whileconds, $code);
2710: if (!$Apache::lonxml::default_homework_loaded) {
2711: &Apache::lonxml::default_homework_load($safeeval);
2712: }
2713: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2714: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2715: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2716: push( @Apache::structuretags::whileline, $token->[5]);
2717: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2718: if ( $result ) {
2719: &Apache::lonxml::newparser($parser,\$bodytext);
2720: }
2721: } elsif ($target eq 'edit') {
2722: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2723: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2724: $token,40);
2725: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2726: } elsif ($target eq 'modified') {
2727: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2728: $safeeval,'condition');
2729: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2730: }
1.160 albertel 2731: return $result;
1.4 tsai 2732: }
2733:
2734: sub end_while {
1.159 albertel 2735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2736: my $result;
2737:
1.339 albertel 2738: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2739: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2740: my $code = pop(@Apache::structuretags::whileconds);
2741: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2742: my $line = pop(@Apache::structuretags::whileline);
2743: my $return = &Apache::run::run($code,$safeeval);
2744: my $starttime=time;
2745: my $error=0;
2746: while ($return) {
2747: if (time-$starttime >
2748: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2749: $return = 0; $error=1; next;
1.161 albertel 2750: }
2751: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2752: if ($target eq 'grade' || $target eq 'answer' ||
2753: $target eq 'analyze') {
2754: # grade/answer/analyze should produce no output but if we
2755: # are redirecting, the redirecter should know what to do
2756: # with the output
2757: if (!$Apache::lonxml::redirection) { undef($result); }
2758: }
1.161 albertel 2759: $return = &Apache::run::run($code,$safeeval);
2760: }
1.516 bisitz 2761: if ($error) {
2762: &Apache::lonxml::error(
2763: '<pre>'
2764: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2765: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2766: .&mt('This occurred while running <while> on line [_1].',
2767: $line)
2768: .'</pre>');
2769: }
1.160 albertel 2770: } elsif ($target eq "edit") {
2771: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2772: }
1.160 albertel 2773: return $result;
1.1 albertel 2774: }
1.6 tsai 2775:
1.160 albertel 2776: # <randomlist show="1">
1.6 tsai 2777: # <tag1>..</tag1>
2778: # <tag2>..</tag2>
2779: # <tag3>..</tag3>
1.160 albertel 2780: # ...
1.6 tsai 2781: # </randomlist>
2782: sub start_randomlist {
1.326 albertel 2783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2784: my $result;
1.339 albertel 2785: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2786: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2787: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2788: my $b_parser= HTML::LCParser->new(\$body);
2789: $b_parser->xml_mode(1);
2790: $b_parser->marked_sections(1);
1.159 albertel 2791: my $b_tok;
2792: my @randomlist;
2793: my $list_item;
2794: while($b_tok = $b_parser->get_token() ) {
2795: if($b_tok->[0] eq 'S') { # start tag
2796: # get content of the tag until matching end tag
2797: # get all text upto the matching tag
2798: # and push the content into @randomlist
2799: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2800: $b_parser);
2801: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2802: push(@randomlist,$list_item);
2803: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2804: # $list_item</b>";
2805: }
2806: if($b_tok->[0] eq 'T') { # text
2807: # what to do with text in between tags?
2808: # print "<b>TEXT $b_tok->[1]</b><br />";
2809: }
2810: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2811: # print "<b>END-TAG $b_tok->[1]</b><br />";
2812: # }
2813: }
1.303 albertel 2814: if (@randomlist) {
2815: my @idx_arr = (0 .. $#randomlist);
1.555 raeburn 2816: if ($env{'form.code_for_randomlist'}) {
2817: &Apache::structuretags::shuffle(\@idx_arr,$target);
2818: undef($env{'form.code_for_randomlist'});
2819: } else {
2820: &Apache::structuretags::shuffle(\@idx_arr);
2821: }
1.303 albertel 2822: my $bodytext = '';
2823: my $show=$#randomlist;
2824: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2825: $showarg--;
2826: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2827: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2828: my @currlist;
2829: my $part = $Apache::inputtags::part;
2830: if ($part ne '') {
2831: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2832: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2833: if (!(grep(/^\Q$part\E$/,@currlist))) {
2834: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2835: }
2836: } else {
2837: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2838: }
2839: }
2840: }
1.526 raeburn 2841: for my $i (0 .. $show) {
2842: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2843: }
2844: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2845: }
2846: } elsif ($target eq 'edit' ) {
2847: $result .=&Apache::edit::tag_start($target,$token);
2848: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2849: $token,5);
2850: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2851: } elsif ($target eq 'modified' ) {
2852: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2853: $safeeval,'show');
2854: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2855: }
2856: return $result;
1.7 tsai 2857: }
2858:
2859: sub shuffle {
1.555 raeburn 2860: my ($a,$target) = @_;
1.7 tsai 2861: my $i;
1.303 albertel 2862: if (ref($a) eq 'ARRAY' && @$a) {
1.555 raeburn 2863: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2864: for($i=@$a;--$i;) {
2865: my $j=int(&Math::Random::random_uniform() * ($i+1));
2866: next if $i == $j;
2867: @$a[$i,$j] = @$a[$j,$i];
2868: }
1.251 albertel 2869: &Apache::response::poprandomnumber();
1.7 tsai 2870: }
1.6 tsai 2871: }
2872:
2873: sub end_randomlist {
1.159 albertel 2874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2875: my $result;
2876: if ($target eq 'edit' ) {
2877: $result=&Apache::edit::tag_end($target,$token,
2878: 'End Randomly Parsed Block');
2879: }
2880: return $result;
1.6 tsai 2881: }
2882:
1.283 albertel 2883: sub ordered_show_check {
2884: my $last_part=$Apache::inputtags::partlist[-2];
2885: my $in_order=
2886: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2887: my $in_order_show=1;
2888: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2889: $in_order_show=&Apache::response::check_status($last_part);
2890: }
2891: return $in_order_show;
2892: }
2893:
1.469 www 2894:
2895: sub start_startpartmarker {
2896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2897: my $result='';
2898: if ($target eq 'edit') {
2899: $result=&Apache::edit::tag_start($target,$token);
2900: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2901: $result.=&Apache::edit::end_table();
2902:
2903: }
2904: return $result;
2905: }
2906:
2907: sub end_startpartmarker {
2908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2909: my @result;
2910: if ($target eq 'edit') { $result[1]='no'; }
2911: return @result;
2912: }
2913:
2914: sub start_endpartmarker {
2915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2916: my $result='';
2917: if ($target eq 'edit') {
2918: $result=&Apache::edit::tag_start($target,$token);
2919: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2920: $result.=&Apache::edit::end_table();
2921:
2922: }
2923: return $result;
2924: }
2925:
2926: sub end_endpartmarker {
2927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2928: my @result;
2929: if ($target eq 'edit') { $result[1]='no'; }
2930: return @result;
2931: }
2932:
2933:
2934:
2935:
2936:
1.11 albertel 2937: sub start_part {
1.326 albertel 2938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2939: if (!$Apache::lonxml::metamode) {
2940: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2941: # duedates.
2942: }
1.159 albertel 2943: my $result='';
1.386 albertel 2944: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2945: $Apache::inputtags::part=$id;
1.177 albertel 2946: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2947: $Apache::inputtags::leniency='';
1.177 albertel 2948: @Apache::inputtags::response=();
1.159 albertel 2949: @Apache::inputtags::previous=();
2950: @Apache::inputtags::previous_version=();
1.405 albertel 2951: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2952: &Apache::response::reset_params();
2953:
1.159 albertel 2954: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2955: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2956: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2957: if ($Apache::lonhomework::type eq 'randomizetry') {
2958: my $rndseed=&setup_rndseed($safeeval,$target);
2959: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2960: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2961: }
1.570 ! raeburn 2962: } elsif (@Apache::inputtags::partlist > 1) {
! 2963: my $prevparttype = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[-2].type");
! 2964: if ($prevparttype eq 'randomizetry') {
! 2965: my $rndseed=&setup_rndseed($safeeval,$target,'',$prevparttype);
! 2966: if (($target eq 'grade') && &Apache::response::submitted()) {
! 2967: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
! 2968: }
! 2969: }
1.528 raeburn 2970: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2971: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2972: }
1.283 albertel 2973: my $in_order_show=&ordered_show_check();
1.214 albertel 2974: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2975: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2976: &Apache::run::run($expression,$safeeval);
1.159 albertel 2977:
2978: if ($target eq 'meta') {
1.224 www 2979: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2980: return &Apache::response::mandatory_part_meta.
2981: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2982: } elsif ($target eq 'web' || $target eq 'grade' ||
2983: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2984: if ($hidden || !$in_order_show) {
1.326 albertel 2985: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2986: } else {
2987: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2988: push (@Apache::inputtags::status,$status);
2989: my $expression='$external::datestatus="'.$status.'";';
2990: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2991: &Apache::run::run($expression,$safeeval);
1.284 albertel 2992: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2993: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2994: }
1.216 albertel 2995: if (( $status eq 'CLOSED' ) ||
2996: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2997: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2998: ( $status eq 'BANNED') ||
2999: ( $status eq 'UNAVAILABLE') ||
3000: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 3001: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
3002: $style);
1.159 albertel 3003: if ( $target eq "web" ) {
1.211 albertel 3004: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 3005: } elsif ( $target eq 'tex' ) {
1.284 albertel 3006: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 3007: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 3008: } else {
1.211 albertel 3009: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 3010: }
1.159 albertel 3011: }
3012: } else {
3013: if ($target eq 'tex') {
1.284 albertel 3014: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 3015: if ($$tagstack[-2] eq 'td') {
1.388 foxr 3016: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 3017: } else {
3018: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
3019: }
1.195 sakharuk 3020: }
1.159 albertel 3021: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 3022: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 3023: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 3024: my $allow_print_points = 0;
3025: foreach my $partial_key (@allkeys) {
1.230 albertel 3026: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 3027: if ($1 ne '0') {$allow_print_points=1;}
3028: }
3029: }
1.275 albertel 3030: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
3031: if (defined($maxtries) && $maxtries < 0) {
3032: $allow_print_points=0;
3033: }
1.302 albertel 3034: if (lc($env{'course.'.$env{'request.course.id'}.
3035: '.disableexampointprint'}) eq 'yes') {
3036: $allow_print_points=0;
3037: }
1.463 foxr 3038: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3039: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3040:
3041: }
1.233 www 3042: } elsif ($target eq 'web') {
1.479 raeburn 3043: if ($status eq 'CAN_ANSWER') {
3044: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3045: my $num = scalar(@Apache::inputtags::partlist)-1;
1.567 raeburn 3046: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3047: ($Apache::lonhomework::randomizetrypart)) &&
1.566 raeburn 3048: ($Apache::lonhomework::type ne 'randomizetry')) {
3049: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3050: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3051: $Apache::lonhomework::randomizetrypart = 1;
3052: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3053: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3054: }
3055: }
1.475 raeburn 3056: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3057: }
3058: }
3059: }
3060: } elsif ($target eq 'edit') {
3061: $result.=&Apache::edit::tag_start($target,$token);
3062: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3063: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3064: ' '.
3065: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3066: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3067: } elsif ($target eq 'modified') {
3068: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3069: $safeeval,'id','display');
1.159 albertel 3070: if ($constructtag) {
1.225 albertel 3071: #limiting ids to only letters numbers, and space
1.224 www 3072: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3073: $result = &Apache::edit::rebuild_tag($token);
3074: }
3075: }
3076: return $result;
1.11 albertel 3077: }
3078:
3079: sub end_part {
1.159 albertel 3080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3081: &Apache::lonxml::debug("in end_part $target ");
3082: my $status=$Apache::inputtags::status['-1'];
3083: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3084: my $in_order_show=&ordered_show_check();
1.321 albertel 3085: my $result;
3086: if (!$Apache::lonxml::metamode) {
3087: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3088: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3089: }
1.312 albertel 3090: if ($target eq 'grade') {
1.249 albertel 3091: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3092: !$hidden && $in_order_show) {
1.311 foxr 3093: $result.=&Apache::inputtags::grade;
1.249 albertel 3094: } else {
3095: # move any submission data to .hidden
3096: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3097: }
1.283 albertel 3098: } elsif (($target eq 'web' || $target eq 'tex') &&
3099: !$hidden && $in_order_show) {
1.159 albertel 3100: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3101: $target);
1.490 raeburn 3102: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3103: ($env{'form.grade_imsexport'})) {
1.212 albertel 3104: $gradestatus='';
3105: }
1.311 foxr 3106: $result.=$gradestatus;
1.265 sakharuk 3107: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 3108: } elsif ($target eq 'edit') {
1.311 foxr 3109: $result.=&Apache::edit::end_table();
1.322 albertel 3110: } elsif ($target eq 'modified') {
3111: $result .= $token->[2];
1.159 albertel 3112: }
3113: pop @Apache::inputtags::status;
3114: $Apache::inputtags::part='';
1.536 raeburn 3115: $Apache::inputtags::leniency='';
1.295 albertel 3116: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3117: return $result;
1.11 albertel 3118: }
1.1 albertel 3119:
1.25 albertel 3120: sub start_preduedate {
1.326 albertel 3121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3122: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3123: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3124: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3125: if (!$Apache::lonhomework::scantronmode &&
3126: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3127: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3128: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3129: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3130: }
1.24 albertel 3131: }
1.159 albertel 3132: return '';
1.24 albertel 3133: }
3134:
1.25 albertel 3135: sub end_preduedate {
1.159 albertel 3136: return '';
1.24 albertel 3137: }
3138:
1.369 foxr 3139: # In all the modes where <postanswerdate> text is
3140: # displayable, all we do is eat up the text between the start/stop
3141: # tags if the conditions are not right to display it.
1.25 albertel 3142: sub start_postanswerdate {
1.326 albertel 3143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3144: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3145: &Apache::lonnet::allowed('pav',
3146: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3147: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3148: $target eq 'tex' ) {
1.300 albertel 3149: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3150: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3151: (($target eq 'tex') && !$pav)) {
1.326 albertel 3152: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3153: }
3154: }
3155: return '';
1.24 albertel 3156: }
3157:
1.25 albertel 3158: sub end_postanswerdate {
1.159 albertel 3159: return '';
1.24 albertel 3160: }
3161:
1.25 albertel 3162: sub start_notsolved {
1.326 albertel 3163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3164: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3165: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3166: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3167: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3168: if ($gradestatus =~ /^correct/ &&
3169: &Apache::response::show_answer()) {
1.159 albertel 3170: &Apache::lonxml::debug("skipping");
1.326 albertel 3171: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3172: }
1.24 albertel 3173: }
1.159 albertel 3174: return '';
1.24 albertel 3175: }
3176:
1.25 albertel 3177: sub end_notsolved {
1.159 albertel 3178: return '';
1.24 albertel 3179: }
3180:
3181: sub start_solved {
1.326 albertel 3182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3183: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3184: $target eq 'tex') {
3185: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3186: if ($gradestatus !~ /^correct/ ||
3187: !&Apache::response::show_answer()) {
1.326 albertel 3188: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3189: }
1.24 albertel 3190: }
1.159 albertel 3191: return '';
1.24 albertel 3192: }
3193:
3194: sub end_solved {
1.248 albertel 3195: return '';
3196: }
3197:
3198: sub start_problemtype {
1.326 albertel 3199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3200: my $result;
1.339 albertel 3201: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3202: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3203: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3204: if (!defined($mode)) { $mode='show'; }
3205: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3206: my $found=0;
3207: foreach my $type (split(',',$for)) {
3208: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3209: }
3210: if ($mode eq 'show' && !$found) {
1.326 albertel 3211: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3212: }
3213: if ($mode eq 'hide' && $found) {
1.326 albertel 3214: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3215: }
3216: } elsif ($target eq 'edit') {
3217: $result .=&Apache::edit::tag_start($target,$token);
3218: $result.=&Apache::edit::select_arg('Mode:','mode',
3219: [['show','Show'],
3220: ['hide','Hide']]
3221: ,$token);
3222: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3223: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3224: ['survey','Survey'],
1.465 raeburn 3225: ['surveycred','Survey (with credit)'],
3226: ['anonsurvey','Anonymous Survey'],
3227: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3228: ['problem','Homework Problem'],
1.479 raeburn 3229: ['practice','Practice Problem'],
3230: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3231: ,$token);
3232: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3233: } elsif ($target eq 'modified') {
3234: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3235: $safeeval,'mode','for');
3236: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3237: }
3238: return $result;
3239: }
3240:
3241: sub end_problemtype {
1.159 albertel 3242: return '';
1.24 albertel 3243: }
1.34 albertel 3244:
3245: sub start_startouttext {
1.159 albertel 3246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3247: my @result=(''.'');
3248: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3249:
3250: my $nesting =
3251: &Apache::lonxml::set_state('outtext',
3252: &Apache::lonxml::get_state('outtext')+1);
3253: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3254: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3255: }
1.159 albertel 3256: return (@result);
1.34 albertel 3257: }
1.159 albertel 3258:
1.34 albertel 3259: sub end_startouttext {
1.326 albertel 3260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3261: my $result='';
3262: my $text='';
3263: if ($target eq 'edit') {
1.424 foxr 3264: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3265: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3266: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3267: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3268: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3269: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3270: .'</span></td>'
1.550 raeburn 3271: .'<td><span id="math_'.$areaid.'">';
3272: if ($env{'environment.nocodemirror'}) {
3273: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3274: } else {
3275: $result.=' ';
3276: }
3277: $result.='</span></td>'
1.474 raeburn 3278: .'<td>'
3279: .&Apache::edit::insertlist($target,$token)
3280: .'</td>'
1.515 golterma 3281: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3282: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3283: &Apache::edit::end_row().
1.362 albertel 3284: &Apache::edit::start_spanning_row()."\n".
1.255 www 3285: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3286: }
3287: if ($target eq 'modified') {
1.219 albertel 3288: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3289: }
3290: if ($target eq 'tex') {
3291: $result .= '\noindent ';
3292: }
3293: return $result;
1.34 albertel 3294: }
1.159 albertel 3295:
1.34 albertel 3296: sub start_endouttext {
1.159 albertel 3297: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3298: my $result='';
3299: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3300: if ($target eq "modified") {
3301: $result='<endouttext />'.
1.377 albertel 3302: &Apache::edit::handle_insertafter('startouttext');
3303: }
1.404 albertel 3304:
3305: my $nesting =
3306: &Apache::lonxml::set_state('outtext',
3307: &Apache::lonxml::get_state('outtext')-1);
3308: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3309: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3310: &Apache::lonxml::set_state('outtext', 0);
3311: }
1.159 albertel 3312: return $result;
1.34 albertel 3313: }
1.159 albertel 3314:
1.34 albertel 3315: sub end_endouttext {
1.159 albertel 3316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3317: my @result=('','');
3318: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3319: return (@result);
1.34 albertel 3320: }
1.159 albertel 3321:
1.45 albertel 3322: sub delete_startouttext {
1.326 albertel 3323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3324: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3325: my $text=$$parser['-1']->get_text("/endouttext");
3326: my $ntoken=$$parser['-1']->get_token();
3327: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3328: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3329: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3330: # they did the last time round
3331: &Apache::lonxml::increasedepth($ntoken);
3332: &Apache::lonxml::decreasedepth($ntoken);
3333: return 1;
1.193 www 3334: }
3335:
3336: sub start_simpleeditbutton {
3337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3338: my $result='';
1.284 albertel 3339: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3340: ($target eq 'web') &&
1.330 albertel 3341: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3342: my $url=$env{'request.noversionuri'};
1.193 www 3343: $url=~s/\?.*$//;
1.367 albertel 3344: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3345: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3346: # $result='<p class="LC_warning">'
3347: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3348: # .&Apache::loncommon::help_open_topic('Caching')
3349: # .'</p>';
1.486 www 3350: $result.=&Apache::loncommon::head_subbox(
3351: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3352: .&Apache::lonhtmlcommon::add_item_funclist(
3353: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3354: .&mt('Edit').'</a>')
1.486 www 3355: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3356:
1.193 www 3357: }
3358: return $result;
3359: }
3360:
3361: sub end_simpleeditbutton {
3362: return '';
1.45 albertel 3363: }
1.34 albertel 3364:
1.428 raeburn 3365: sub practice_problem_header {
1.556 raeburn 3366: return '<h3 class="LC_info">'.&mt('Practice Problem').'</h3>'.
1.428 raeburn 3367: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3368: '</span>';
3369: }
3370:
1.479 raeburn 3371: sub randomizetry_problem_header {
1.566 raeburn 3372: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3373: my ($header,$text);
3374: if ($reqtries > 1) {
3375: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3376: if (($problemstatus eq 'no') ||
3377: ($problemstatus eq 'no_feedback_ever')) {
3378: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3379: } else {
3380: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3381: }
3382: } else {
3383: $header = &mt('New Problem Variation Each Try');
3384: if (($problemstatus eq 'no') ||
3385: ($problemstatus eq 'no_feedback_ever')) {
3386: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3387:
3388: } else {
3389: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3390: }
3391: }
1.566 raeburn 3392: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3393: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3394: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3395: } else {
3396: return '<h3 class="LC_info">'.$header.'</h3>'.
3397: '<span class="LC_info">'.$text.'</span><hr />';
3398: }
1.479 raeburn 3399: }
3400:
3401: sub randomizetry_part_header {
3402: my ($problemstatus,$reqtries,$num) = @_;
3403: my ($header,$text);
3404: if ($reqtries eq 'none') {
3405: $header = &mt('No Question Variation');
1.570 ! raeburn 3406: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3407: } elsif ($reqtries > 1) {
3408: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3409: if (($problemstatus eq 'no') ||
3410: ($problemstatus eq 'no_feedback_ever')) {
3411: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3412: } else {
3413: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3414: }
3415: } else {
3416: $header = &mt('New Question Variation For Each Try');
3417: if (($problemstatus eq 'no') ||
3418: ($problemstatus eq 'no_feedback_ever')) {
3419: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3420: } else {
3421: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3422: }
3423: }
3424: my $output;
3425: if ($num > 1) {
3426: $output .= '<hr />';
3427: }
1.556 raeburn 3428: $output .= '<h4 class="LC_info">'.$header.'</h4>'.
1.479 raeburn 3429: '<span class="LC_info">'.$text.'</span><br /><br />';
3430: return $output;
3431: }
3432:
1.1 albertel 3433: 1;
3434: __END__
1.435 jms 3435:
3436: =pod
3437:
3438: =back
3439:
3440: =cut
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