Annotation of loncom/homework/structuretags.pm, revision 1.512.2.9
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.9! raeburn 4: # $Id: structuretags.pm,v 1.512.2.8 2014/05/18 02:21:28 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 {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 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:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9! raeburn 227: my ($postsubmit,$timeout);
! 228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
! 229: my $crstype;
! 230: if (&Apache::loncommon::course_type() eq 'Community') {
! 231: $crstype = 'community';
! 232: } else {
! 233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
! 234: $crstype = 'official';
! 235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
! 236: $crstype = 'textbook';
! 237: } else {
! 238: $crstype = 'unofficial';
! 239: }
! 240: }
! 241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
! 242: if ($postsubmit eq '') {
! 243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
! 244: $postsubmit = $domdefs{'postsubmit'};
! 245: unless ($postsubmit eq 'off') {
! 246: $timeout = $domdefs{$crstype.'postsubtimeout'};
! 247: }
! 248: } elsif ($postsubmit eq '0') {
! 249: $postsubmit = 'off';
! 250: } elsif ($postsubmit eq '1') {
! 251: $postsubmit = 'on';
! 252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
! 253: if ($timeout eq '') {
! 254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
! 255: $timeout = $domdefs{$crstype.'postsubtimeout'};
! 256: }
! 257: }
! 258: if ($timeout eq '') {
! 259: $timeout = 60;
! 260: }
! 261: } else {
! 262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
! 263: $postsubmit = $domdefs{'postsubmit'};
! 264: unless ($postsubmit eq 'off') {
! 265: $timeout = 60;
! 266: }
! 267: }
! 268: my $jstimeout = 0;
! 269: if ($timeout) {
! 270: $jstimeout = 1000 * $timeout;
! 271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 273: &setmode_javascript().
1.512.2.9! raeburn 274: <<"JS";
1.400 albertel 275: <script type="text/javascript">
1.483 raeburn 276: // <![CDATA[
1.494 raeburn 277: function setSubmittedPart (part,prefix) {
278: if (typeof(prefix) == 'undefined') {
279: this.document.lonhomework.submitted.value="part_"+part;
280: } else {
281: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
282: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
283: this.document.lonhomework.elements[i].value="part_"+part;
284: }
285: }
286: }
1.400 albertel 287: }
288:
1.512.2.9! raeburn 289: function disableAutoComplete (id) {
! 290: var field = document.getElementById(id);
! 291: if (field != null && field != undefined){
! 292: if ('autocomplete' in field) {
! 293: field.autocomplete = "off";
! 294: } else {
! 295: field.setAttribute("autocomplete", "off");
! 296: }
! 297: }
! 298: }
! 299:
1.400 albertel 300: function image_response_click (which, e) {
301: init_geometry();
302: if (!e) { e = window.event; } //IE
303: var input_element = document.lonhomework.elements[which];
1.401 albertel 304: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 305: var token = token_element.value;
1.401 albertel 306: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 307: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
308: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
309: var click = x+':'+y;
310: input_element.value = click;
1.485 raeburn 311: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 312: }
1.512.2.9! raeburn 313:
! 314: var submithandled = 0;
! 315: var keypresshandled = 0;
! 316: var postsubmit = '$postsubmit';
! 317:
! 318: \$(document).ready(function(){
! 319: if (postsubmit != 'off') {
! 320: \$(document).keypress(function(event){
! 321: var keycode = (event.keyCode ? event.keyCode : event.which);
! 322: if ((keycode == '13') && (keypresshandled == 0)) {
! 323: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
! 324: keypresshandled = 1;
! 325: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
! 326: if (idsArray.length) {
! 327: event.preventDefault();
! 328: var itemsArray = idsArray[1].split(/_/);
! 329: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
! 330: \$("#"+buttonId).trigger("click");
! 331: }
! 332: }
! 333: }
! 334: });
! 335:
! 336: \$(document).delegate('form :submit', 'click', function( event ) {
! 337: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
! 338: var buttonId = this.id;
! 339: var timeout = $jstimeout;
! 340: if (submithandled == 0) {
! 341: submithandled = 1;
! 342: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
! 343: "color": "black","padding": "2px"}) ;
! 344: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
! 345: if (buttonId != "all_submit") {
! 346: \$( ".LC_status_"+buttonId ).hide();
! 347: if (( "#"+buttonId+"_pressed" ).length) {
! 348: \$( "#"+buttonId+"_pressed" ).val( "1" );
! 349: }
! 350: }
! 351: } else {
! 352: \$( ".LC_status_"+buttonId ).hide();
! 353: }
! 354: \$(this.form).submit();
! 355: \$( ".LC_hwk_submit" ).prop( "disabled", true);
! 356: \$( ".LC_textline" ).prop( "readonly", "readonly");
! 357: event.preventDefault();
! 358:
! 359: if (timeout > 0) {
! 360: setTimeout(function(){
! 361: \$( "#msg_"+buttonId ).css({"display": "none"});
! 362: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
! 363: if (buttonId != "all_submit") {
! 364: if (( "#"+buttonId+"_pressed" ).length) {
! 365: \$( "#"+buttonId+"_pressed" ).val( "" );
! 366: }
! 367: }
! 368: }
! 369: \$( ".LC_hwk_submit" ).prop( "disabled", false);
! 370: \$( ".LC_textline" ).prop( "readonly", false);
! 371: submithandled = 0;
! 372: keypresshandled = 0;
! 373: }, timeout);
! 374: }
! 375: return true;
! 376: }
! 377: }
! 378: });
! 379: }
! 380: });
! 381:
1.483 raeburn 382: // ]]>
1.400 albertel 383: </script>
384: JS
385: }
386:
1.416 raeburn 387: sub setmode_javascript {
388: return <<"ENDSCRIPT";
389: <script type="text/javascript">
1.485 raeburn 390: // <![CDATA[
1.416 raeburn 391: function setmode(form,probmode) {
392: form.problemmode.value = probmode;
393: form.submit();
394: }
1.485 raeburn 395: // ]]>
1.416 raeburn 396: </script>
397: ENDSCRIPT
398: }
399:
1.48 albertel 400: sub page_start {
1.345 albertel 401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
402: $extra_head)=@_;
1.159 albertel 403: my %found;
1.207 albertel 404: foreach my $taginside (@$tagstack) {
1.159 albertel 405: foreach my $taglookedfor ('html','body','form') {
406: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
407: }
408: }
409:
1.343 albertel 410: if ($target eq 'tex') {
411: return
412: &Apache::londefdef::start_html($target,$token,$tagstack,
413: $parstack,$parser,$safeeval);
414: }
415:
1.474 raeburn 416: $extra_head .= &homework_js().
417: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
418: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
419: my %textarea_args = (
420: dragmath => 'math',
421: );
422: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 423: }
1.478 raeburn 424: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9! raeburn 425: my ($needs_upload,$partlist);
1.495 raeburn 426: my ($symb)= &Apache::lonnet::whichuser();
427: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 428: if ($is_task) {
1.495 raeburn 429: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 430: } else {
431: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 432: unless ($env{'request.state'} eq 'construct') {
433: my $navmap = Apache::lonnavmaps::navmap->new();
434: if (ref($navmap)) {
435: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 436: my $is_page;
437: if (ref($mapres)) {
438: $is_page = $mapres->is_page();
439: }
440: unless ($is_page) {
1.495 raeburn 441: $needs_upload = 1;
442: }
1.512.2.9! raeburn 443: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
! 444: my $res = $navmap->getBySymb($symb);
! 445: if (ref($res)) {
! 446: $partlist = $res->parts();
! 447: }
! 448: }
1.495 raeburn 449: }
450: }
1.493 raeburn 451: } else {
452: unless ($env{'request.state'} eq 'construct') {
453: my $navmap = Apache::lonnavmaps::navmap->new();
454: if (ref($navmap)) {
1.495 raeburn 455: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 456: my $is_page;
457: if (ref($mapres)) {
458: $is_page = $mapres->is_page();
459: }
1.512.2.9! raeburn 460: if ($is_page) {
! 461: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
! 462: my $res = $navmap->getBySymb($symb);
! 463: if (ref($res)) {
! 464: $partlist = $res->parts();
! 465: }
! 466: }
! 467: } else {
1.495 raeburn 468: my $res = $navmap->getBySymb($symb);
469: if (ref($res)) {
1.512.2.9! raeburn 470: $partlist = $res->parts();
1.495 raeburn 471: if (ref($partlist) eq 'ARRAY') {
472: foreach my $part (@{$partlist}) {
473: my @types = $res->responseType($part);
474: my @ids = $res->responseIds($part);
475: for (my $i=0; $i < scalar(@ids); $i++) {
476: if ($types[$i] eq 'essay') {
477: my $partid = $part.'_'.$ids[$i];
478: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
479: $needs_upload = 1;
480: last;
481: }
1.493 raeburn 482: }
483: }
484: }
1.495 raeburn 485: }
486: }
1.493 raeburn 487: }
488: }
489: }
490: }
1.495 raeburn 491: if ($needs_upload) {
492: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
493: }
1.478 raeburn 494: }
1.425 raeburn 495:
1.344 albertel 496: my %body_args;
497: if (defined($found{'html'})) {
498: $body_args{'skip_phases'}{'head'}=1;
499: } else {
1.343 albertel 500:
1.345 albertel 501: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 502:
1.379 albertel 503: $extra_head .= &Apache::londefdef::generate_css_links();
504:
1.384 albertel 505: if ($env{'request.state'} eq 'construct') {
1.343 albertel 506: $extra_head.=&Apache::edit::js_change_detection().
507: "<script type=\"text/javascript\">\n".
508: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
509: &Apache::loncommon::browser_and_searcher_javascript().
510: "\n</script>\n";
1.512.2.9! raeburn 511: if ($target eq 'edit') {
! 512: $extra_head .= &Apache::edit::js_update_linknum();
! 513: }
1.343 albertel 514: }
1.159 albertel 515: }
1.343 albertel 516:
1.446 bisitz 517: my $pageheader = '';
1.344 albertel 518: if (defined($found{'body'})) {
519: $body_args{'skip_phases'}{'body'}=1;
520: } elsif (!defined($found{'body'})
521: && $env{'request.state'} eq 'construct') {
1.343 albertel 522: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 523: # Breadcrumbs for Authoring Space
1.450 bisitz 524: &Apache::lonhtmlcommon::clear_breadcrumbs();
525: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 526: 'text' => 'Authoring Space',
1.497 raeburn 527: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 528: });
1.460 droeschl 529: # breadcrumbs (and tools) will be created
530: # in start_page->bodytag->innerregister
531:
1.450 bisitz 532: # FIXME Where are we?
533: # &Apache::lonhtmlcommon::add_breadcrumb({
534: # 'text' => 'Problem Editing', # 'Problem Testing'
535: # 'href' => '',
536: # });
1.460 droeschl 537: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 538: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 539: }
1.272 albertel 540: } elsif (!defined($found{'body'})) {
1.343 albertel 541: my %add_entries;
1.159 albertel 542: my $background=&Apache::lonxml::get_param('background',$parstack,
543: $safeeval);
1.343 albertel 544: if ($background ne '' ) {
545: $add_entries{'background'} = $background;
546: }
1.344 albertel 547:
1.290 albertel 548: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
549: $safeeval);
1.446 bisitz 550: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 551:
1.446 bisitz 552: $body_args{'bgcolor'} = $bgcolor;
553: # $body_args{'no_title'} = 1;
554: $body_args{'force_register'} = 1;
555: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 556: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 557: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 558: } elsif ($target eq 'web') {
559: $body_args{'print_suppress'} = 1;
1.446 bisitz 560: }
1.344 albertel 561: }
1.365 albertel 562: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 563: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
564: \%body_args);
1.446 bisitz 565: $page_start .= $pageheader;
1.462 raeburn 566: if (!defined($found{'body'})
567: && $env{'request.state'} ne 'construct'
568: && ($target eq 'web' || $target eq 'webgrade')) {
569:
570: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
571: if ($symb eq '' && !$publicuser) {
572: $page_start .= '<p class="LC_info">'
573: .&mt('Browsing resource, all submissions are temporary.')
574: .'</p>';
1.457 bisitz 575: }
1.344 albertel 576: }
577:
1.409 albertel 578: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 579: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 580: }
581: my $form_tag_start;
582: if (!defined($found{'form'})) {
1.337 albertel 583: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 584: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 585: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 586: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 587: $form_tag_start.=$uri.'" ';
588: if ($target eq 'edit') {
589: $form_tag_start.=&Apache::edit::form_change_detection();
590: }
1.493 raeburn 591: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
592: my ($path,$multiresp) =
593: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 594: if (($is_task) || ($needs_upload)) {
595: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 596: }
1.368 albertel 597: $form_tag_start.='>'."\n";
1.355 albertel 598:
599: if ($symb =~ /\S/) {
600: $symb=
601: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
602: $form_tag_start.=
1.368 albertel 603: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 604: }
1.159 albertel 605: }
1.512.2.9! raeburn 606: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 607: }
608:
1.141 matthew 609: #use Time::HiRes();
1.105 albertel 610: sub get_resource_name {
1.159 albertel 611: my ($parstack,$safeeval)=@_;
1.388 foxr 612: my $name;
1.204 albertel 613: if (defined($Apache::lonhomework::name)) {
1.388 foxr 614: $name = $Apache::lonhomework::name;
615: } else {
616: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 617: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 618: if ($name eq '') {
619: $name=&Apache::lonnet::EXT('resource.title');
620: if ($name eq 'con_lost') { $name = ''; }
621: }
622: if ($name!~/\S+/) {
623: $name=$env{'request.uri'};
624: $name=~s-.*/([^/]+)$-$1-;
625: }
626: # The name has had html tags escaped:
627:
628: $name=~s/</</gs;
629: $name=~s/>/>/gs;
630:
631: $Apache::lonhomework::name=$name;
1.204 albertel 632: }
1.159 albertel 633: return $name;
1.105 albertel 634: }
635:
636: sub setup_rndseed {
1.512.2.9! raeburn 637: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 638: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 639: my ($questiontype,$set_safespace,$rndseed);
640: if ($target eq 'analyze') {
641: $questiontype = $env{'form.grade_questiontype'};
642: }
643: unless (defined($questiontype)) {
644: $questiontype = $Apache::lonhomework::type;
645: }
1.333 albertel 646: if ($env{'request.state'} eq "construct"
647: || $symb eq ''
648: || $Apache::lonhomework::type eq 'practice'
649: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 650: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 651: ['rndseed']);
1.284 albertel 652: $rndseed=$env{'form.rndseed'};
1.159 albertel 653: if (!$rndseed) {
1.162 albertel 654: $rndseed=$Apache::lonhomework::history{'rndseed'};
655: if (!$rndseed) {
656: $rndseed=time;
657: }
1.284 albertel 658: $env{'form.rndseed'}=$rndseed;
1.162 albertel 659: }
1.479 raeburn 660: if (($env{'request.state'} eq "construct") &&
661: ($Apache::lonhomework::type eq 'randomizetry')) {
662: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
663: if ($tries) {
664: $rndseed += $tries;
665: }
1.480 raeburn 666: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 667: }
1.374 albertel 668: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
669: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 670: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 671: srand(time);
672: $rndseed=int(rand(2100000000));
1.284 albertel 673: $env{'form.rndseed'}=$rndseed;
674: delete($env{'form.resetdata'});
675: delete($env{'form.newrandomization'});
1.159 albertel 676: }
1.488 www 677: $rndseed=~s/\,/\:/g;
678: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 679: if (defined($rndseed)) {
680: my ($c1,$c2)=split(/\:/,$rndseed);
681: unless ($c2) { $c2=0; }
682: unless (($c1==int($c1)) && ($c2==int($c2))) {
683: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
684: }
1.187 albertel 685: }
1.247 albertel 686: if ($Apache::lonhomework::history{'resource.CODE'}) {
687: $rndseed=&Apache::lonnet::rndseed();
688: }
1.479 raeburn 689: $set_safespace = 1;
690: } elsif ($questiontype eq 'randomizetry') {
691: if ($target eq 'analyze') {
692: if (defined($env{'form.grade_rndseed'})) {
693: $rndseed = $env{'form.grade_rndseed'};
694: }
695: }
696: unless (($target eq 'analyze') && (defined($rndseed))) {
697: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9! raeburn 698: my $partfortries = $Apache::inputtags::part;
! 699: if (ref($probpartlist) eq 'ARRAY') {
! 700: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
! 701: $partfortries = $probpartlist->[0];
! 702: }
! 703: }
! 704: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 705: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
706: $curr_try ++;
707: }
708: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
709: $rndseed = $1;
710: }
711: if ($curr_try) {
1.512.2.9! raeburn 712: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 713: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
714: my $inc = int(($curr_try-1)/$reqtries);
715: $rndseed += $inc;
716: } else {
717: $rndseed += $curr_try;
718: }
719: }
720: }
721: $set_safespace = 1;
1.512.2.9! raeburn 722: if ($target eq 'grade') {
! 723: $Apache::lonhomework::rawrndseed = $rndseed;
! 724: }
1.479 raeburn 725: }
726: if ($set_safespace) {
727: if ($safeeval) {
728: &Apache::lonxml::debug("Setting rndseed to $rndseed");
729: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
730: }
731: }
732: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
733: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 734: }
735: return $rndseed;
1.105 albertel 736: }
737:
1.268 albertel 738: sub remember_problem_state {
739: return '
1.284 albertel 740: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
741: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
742: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 743: }
744:
1.487 www 745: sub problem_edit_action_button {
746: my ($name,$action,$accesskey,$text,$flag)=@_;
747: my $actionscript="setmode(this.form,'$action')";
748: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
749: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
750: }
751:
1.423 www 752: sub problem_edit_buttons {
1.487 www 753: my ($mode)=@_;
754: # Buttons that do not save
755: my $result='<div class="LC_edit_problem_discards">'.
756: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
757: if ($mode eq 'editxml') {
758: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
759: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
760: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
761: } else {
762: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
763: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
764: }
765: $result.="\n</div>";
766: # Buttons that save
767: $result.='<div class="LC_edit_problem_saves">';
768: if ($mode eq 'editxml') {
769: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
770: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
771: } else {
772: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
773: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
774: }
775: $result.="\n</div>\n";
776: return $result;
1.423 www 777: }
778:
779: sub problem_edit_header {
1.487 www 780: return '<input type="hidden" name="submitted" value="edit" />'.
781: &remember_problem_state('edit').'
1.423 www 782: <div class="LC_edit_problem_header">
783: <div class="LC_edit_problem_header_title">
784: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
785: </div>'.
1.487 www 786: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 787: &problem_edit_buttons().'
1.459 bisitz 788: <hr style="clear:both;" />
1.409 albertel 789: '.&Apache::lonxml::message_location().'
1.408 albertel 790: </div>
791: '.
1.512.2.5 raeburn 792: '<table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 793: }
794:
795: sub problem_edit_footer {
1.412 albertel 796: return '</td></tr></table><br />
797: <div class="LC_edit_problem_footer">
1.453 bisitz 798: <hr />'.
1.423 www 799: &problem_edit_buttons().'
1.459 bisitz 800: <hr style="clear:both;" />
1.412 albertel 801: </div>
802: '.
1.342 albertel 803: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 804: }
805:
1.235 albertel 806: sub option {
807: my ($value,$name) = @_;
808: my $result ="<option value='".$value."' ";
1.284 albertel 809: if ($env{'form.'.$name} eq $value) {
1.235 albertel 810: $result.=" selected='on' ";
811: }
812: $result.='>';
813: return $result;
814: }
815:
1.105 albertel 816: sub problem_web_to_edit_header {
1.159 albertel 817: my ($rndseed)=@_;
1.406 albertel 818: my $result .= '<div class="LC_edit_problem_header">';
819:
820: if (!$Apache::lonhomework::parsing_a_task) {
821: $result .=
822: '<div class="LC_edit_problem_header_title">'.
823: &mt('Problem Testing').
824: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
825: '</div>';
826: } else {
827: $result .=
828: '<div class="LC_edit_problem_header_title">'.
829: &mt('Task Testing').
830: '</div>';
831: }
832:
1.315 albertel 833: my $show_all_foils_text =
834: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 835: &mt('Show All Instances')
836: : &mt('Show All Foils');
1.315 albertel 837:
1.452 bisitz 838: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
839: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 840: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 841: $show_all.= ' /> '.$show_all_foils_text
842: .'</label></span>';
1.406 albertel 843:
844:
1.384 albertel 845:
1.406 albertel 846: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 847: if (!$Apache::lonhomework::parsing_a_task) {
848: $result.="
1.406 albertel 849: <div class='LC_edit_problem_header_row1'>
850: <span class=\"LC_nobreak\">
1.405 albertel 851: ".&mt("Problem Status:")."
1.235 albertel 852: <select name='problemstate'>
1.270 albertel 853: <option value=''></option>
1.235 albertel 854: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
855: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
856: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
857: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
858: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
859: </select>
1.406 albertel 860: </span>
861: <span class=\"LC_nobreak\">
1.405 albertel 862: ".&mt("Problem Type:")."
1.235 albertel 863: <select name='problemtype'>
1.270 albertel 864: <option value=''></option>
1.512.2.1 raeburn 865: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 866: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 867: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 868: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
869: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
870: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 871: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 872: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 873: </select>
1.406 albertel 874: </span>
875: $show_all
876: </div>
877: <div class='LC_edit_problem_header_row2'>
878: <span class=\"LC_nobreak\">
1.405 albertel 879: ".&mt("Feedback Mode:")."
1.235 albertel 880: <select name='problemstatus'>
881: <option value=''></option>
1.242 albertel 882: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 883: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 884: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 885: </select>
1.406 albertel 886: </span>
887: ";
888:
1.376 albertel 889: } elsif ($Apache::lonhomework::parsing_a_task) {
890: $result.="
1.406 albertel 891: <div class='LC_edit_problem_header_row1'>
892: <span class=\"LC_nobreak\">
1.405 albertel 893: ".&mt("Problem Status:")."
1.376 albertel 894: <select name='problemstate'>
895: <option value=''></option>
896: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
897: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
898: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
899: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
900: </select>
1.406 albertel 901: </span>
902: $show_all
903: ";
904: }
905: $result.='
906: <span class="LC_nobreak">
907: '.&mt('Apply style file: ').'
908: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
909: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
910: </span>
1.422 www 911: </div>
912: <div class="LC_edit_problem_header_row1">'.
913: &Apache::lonxml::renderingoptions().'
1.406 albertel 914: </div>
915: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
916: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
917: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
918: </div>
1.453 bisitz 919: <hr />
1.406 albertel 920: <div class="LC_edit_problem_header_randomize_row">
921: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
922: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 923: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 924: $rndseed.'"
925: onchange="javascript:document.lonhomework.changerandseed.click()" />';
926:
927: if (!$Apache::lonhomework::parsing_a_task) {
928: my $numtoanalyze=$env{'form.numtoanalyze'};
929: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 930: $result .= '<span class="LC_nobreak">'.
931: &mt('[_1] for [_2] versions.',
1.416 raeburn 932: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 933: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
934: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 935: $numtoanalyze.'" size="5" />').
936: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
937: '</span>';
938:
1.313 albertel 939: }
1.406 albertel 940:
941: $result.='
942: </div>
1.453 bisitz 943: <hr />
1.447 bisitz 944: <div>';
1.416 raeburn 945: $result.='<input type="hidden" name="problemmode" value="view" />';
946: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
947: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
948: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
949: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 950: $result.='
951: </div>
1.453 bisitz 952: <hr />
1.409 albertel 953: '.&Apache::lonxml::message_location().'
1.406 albertel 954: </div>';
1.159 albertel 955: return $result;
1.48 albertel 956: }
957:
1.65 albertel 958: sub initialize_storage {
1.357 albertel 959: my ($given_symb) = @_;
1.353 albertel 960: undef(%Apache::lonhomework::results);
961: undef(%Apache::lonhomework::history);
1.357 albertel 962: my ($symb,$courseid,$domain,$name) =
1.367 albertel 963: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 964:
965: # anonymous users (CODEd exams) have no data
966: if ($name eq 'anonymous'
967: && !defined($domain)) {
968: return;
969: }
970:
1.333 albertel 971: if ($env{'request.state'} eq 'construct'
972: || $symb eq ''
973: || $Apache::lonhomework::type eq 'practice') {
974:
975: my $namespace = $symb || $env{'request.uri'};
976: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 977: ($env{'form.resetdata'} eq &mt('New Problem Variation')
978: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 979: $env{'form.newrandomization'} eq &mt('New Randomization')) {
980: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
981: &Apache::lonxml::debug("Attempt reset");
982: }
1.159 albertel 983: %Apache::lonhomework::history=
1.333 albertel 984: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9! raeburn 985: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 986: &Apache::lonxml::debug("Return message of $temp");
987: } else {
988: %Apache::lonhomework::history=
989: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
990: }
1.353 albertel 991:
1.159 albertel 992: #ignore error conditions
1.512.2.9! raeburn 993: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 994: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 995: }
996:
1.435 jms 997: =pod
998:
999: =item finalize_storage()
1000:
1.512.2.9! raeburn 1001: Stores away the result hash to a student's environment;
! 1002: checks form.grade_ for specific values, otherwise stores
! 1003: to the running user's environment.
! 1004:
! 1005: &check_correctness_changes() is called in two circumstances
! 1006: in which the results hash is to be stored permanently, for
! 1007: grading triggered by a student's submission, where feedback on
! 1008: correctness is to be provided to the student.
! 1009:
! 1010: 1. Immediately prior to storing the results hash
! 1011:
! 1012: To handle the case where a student's submission (and award) were
! 1013: stored after history was retrieved in &initialize_storage(), e.g.,
! 1014: if a student submitted answers in quick succession (e.g., from
! 1015: multiple tabs). &Apache::inputtags::hidealldata() is called for
! 1016: any parts with out-of-order storage (i.e., correct then incorrect,
! 1017: where awarded >= 1 when correct).
! 1018:
! 1019: 2. Immediately after storing the results hash
! 1020:
! 1021: To handle the case where lond on the student's homeserver returns
! 1022: delay:N -- where N is the number of transactions between the last
! 1023: retrieved in &initialize_storage() and the last stored immediately
! 1024: before permanent storage of the current transaction via
! 1025: lond::store_handler(). &Apache::grades::makehidden() is called
! 1026: for any parts with out-of-order storage (i.e., correct then incorrect,
! 1027: where awarded >= 1 when correct).
! 1028:
! 1029: Will call &store_aggregates() to increment totals for attempts,
! 1030: students, and corrects, if running user has student role.
1.435 jms 1031:
1032: =cut
1033:
1034:
1.65 albertel 1035: sub finalize_storage {
1.357 albertel 1036: my ($given_symb) = @_;
1.159 albertel 1037: my $result;
1.289 albertel 1038: if (%Apache::lonhomework::results) {
1.323 albertel 1039: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1040: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1041: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1042: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1043: if ($env{'request.state'} eq 'construct'
1044: || $symb eq ''
1045: || $Apache::lonhomework::type eq 'practice') {
1046: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1047: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1048: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1049: $namespace,'',$domain,$name);
1.159 albertel 1050: &Apache::lonxml::debug('Construct Store return message:'.$result);
1051: } else {
1.512.2.9! raeburn 1052: my ($laststore,$checkedparts,@parts,%postcorrect);
! 1053: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
! 1054: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
! 1055: (!defined($env{'form.grade_courseid'}))) {
! 1056: if ($Apache::lonhomework::history{'version'}) {
! 1057: $laststore = $Apache::lonhomework::history{'version'}.'='.
! 1058: $Apache::lonhomework::history{'timestamp'};
! 1059: } else {
! 1060: $laststore = '0=0';
! 1061: }
! 1062: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
! 1063: if ($record{'version'}) {
! 1064: my ($newversion,$oldversion,$oldtimestamp);
! 1065: if ($Apache::lonhomework::history{'version'}) {
! 1066: $oldversion = $Apache::lonhomework::history{'version'};
! 1067: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
! 1068: } else {
! 1069: $oldversion = 0;
! 1070: $oldtimestamp = 0;
! 1071: }
! 1072: if ($record{'version'} > $oldversion) {
! 1073: if ($record{'timestamp'} >= $oldtimestamp) {
! 1074: $laststore = $record{'version'}.'='.$record{'timestamp'};
! 1075: $newversion = $record{'version'} + 1;
! 1076: $checkedparts = 1;
! 1077: foreach my $key (keys(%Apache::lonhomework::results)) {
! 1078: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
! 1079: my $part = $1;
! 1080: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
! 1081: push(@parts,$part);
! 1082: }
! 1083: }
! 1084: }
! 1085: if (@parts) {
! 1086: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
! 1087: \%record,\@parts,$newversion,
! 1088: $oldversion);
! 1089: if (@parts_to_hide) {
! 1090: foreach my $part (@parts_to_hide) {
! 1091: $postcorrect{$part} = 1;
! 1092: &Apache::inputtags::hidealldata($part);
! 1093: }
! 1094: }
! 1095: }
! 1096: }
! 1097: }
! 1098: }
! 1099: }
1.159 albertel 1100: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9! raeburn 1101: $symb,$courseid,$domain,$name,$laststore);
! 1102: if ($result =~ /^delay\:(\d+)$/) {
! 1103: my $numtrans = $1;
! 1104: my ($oldversion) = split(/=/,$laststore);
! 1105: if ($numtrans) {
! 1106: my $newversion = $oldversion + 1 + $numtrans;
! 1107: my @possparts;
! 1108: if ($checkedparts) {
! 1109: foreach my $part (@parts) {
! 1110: unless ($postcorrect{$part}) {
! 1111: push(@possparts,$part);
! 1112: }
! 1113: }
! 1114: } else {
! 1115: foreach my $key (keys(%Apache::lonhomework::results)) {
! 1116: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
! 1117: my $part = $1;
! 1118: unless ($postcorrect{$part}) {
! 1119: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
! 1120: push(@possparts,$part);
! 1121: }
! 1122: }
! 1123: }
! 1124: }
! 1125: }
! 1126: if (@possparts) {
! 1127: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
! 1128: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
! 1129: \%newrecord,\@possparts,$newversion,
! 1130: $oldversion);
! 1131: if (@parts_to_hide) {
! 1132: my $partslist = join(',',@parts_to_hide);
! 1133: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
! 1134: }
! 1135: }
! 1136: }
! 1137: }
1.159 albertel 1138: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1139: &store_aggregates($symb,$courseid);
1.159 albertel 1140: }
1.323 albertel 1141: } else {
1142: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1143: }
1.159 albertel 1144: return $result;
1.65 albertel 1145: }
1146:
1.435 jms 1147: =pod
1148:
1.512.2.9! raeburn 1149: =item check_correctness_changes()
! 1150:
! 1151: For all parts for which current results contain a solved status
! 1152: of "incorrect_attempted", check if there was a transaction in which
! 1153: solved was set to "correct_by_student" in the time since the last
! 1154: transaction (retrieved when &initialize_storage() was called i.e.,
! 1155: when &start_problem() was called), unless:
! 1156: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
! 1157: (b) problemstatus is set to no or no_feedback_ever
! 1158: If such a transaction exists, and did not occur after "reset status"
! 1159: by a user with grading privileges, then the current transaction is an
! 1160: example of an out-of-order transaction (i.e., incorrect occurring after
! 1161: correct). Accordingly, the current transaction should be hidden.
! 1162:
! 1163: =cut
! 1164:
! 1165:
! 1166: sub check_correctness_changes {
! 1167: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
! 1168: my @parts_to_hide;
! 1169: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
! 1170: return @parts_to_hide;
! 1171: }
! 1172: if (@{$parts}) {
! 1173: my $usec;
! 1174: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
! 1175: ($env{'request.course.id'} eq $courseid)) {
! 1176: $usec = $env{'request.course.sec'};
! 1177: } else {
! 1178: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
! 1179: }
! 1180: foreach my $id (@{$parts}) {
! 1181: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
! 1182: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
! 1183: $domain,$name,$usec,undef,$courseid) =~ /^no/));
! 1184: my $reset;
! 1185: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
! 1186: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
! 1187: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
! 1188: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
! 1189: $reset = 1;
! 1190: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
! 1191: ($record->{$i.":resource.$id.awarded"} >= 1)) {
! 1192: unless ($reset) {
! 1193: push(@parts_to_hide,$id);
! 1194: last;
! 1195: }
! 1196: }
! 1197: }
! 1198: }
! 1199: }
! 1200: return @parts_to_hide;
! 1201: }
! 1202:
! 1203: =pod
! 1204:
1.435 jms 1205: item store_aggregates()
1206:
1207: Sends hash of values to be incremented in nohist_resourcetracker.db
1208: for the course. Increments total number of attempts, unique students
1209: and corrects for each part for an instance of a problem, as appropriate.
1210:
1211: =cut
1212:
1.285 raeburn 1213: sub store_aggregates {
1214: my ($symb,$courseid) = @_;
1.479 raeburn 1215: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1216: my @parts;
1.288 albertel 1217: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1218: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1219: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1220: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1221: push(@parts, $1);
1.285 raeburn 1222: }
1223: }
1.286 albertel 1224: foreach my $part (@parts) {
1.470 raeburn 1225: if ($env{'request.role'} =~/^st/) {
1226: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1227: eq 'APPROX_ANS' ||
1228: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1229: eq 'EXACT_ANS') {
1230: $aggregate{$symb."\0".$part."\0correct"} = 1;
1231: }
1232: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1233: $aggregate{$symb."\0".$part."\0users"} = 1;
1234: } else {
1235: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1236: if ($last_reset) {
1237: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1238: $aggregate{$symb."\0".$part."\0users"} = 1;
1239: }
1240: }
1241: }
1242: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1243: }
1.470 raeburn 1244: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1245: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1246: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1247: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1248: $randtrycounter{$symb."\0".$part} = 1;
1249: } else {
1250: $anoncounter{$symb."\0".$part} = 1;
1251: }
1.470 raeburn 1252: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1253: if ($needsrelease) {
1254: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1255: if ($curr_required eq '') {
1.471 raeburn 1256: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1257: } else {
1258: my ($currmajor,$currminor) = split(/\./,$curr_required);
1259: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1260: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1261: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1262: }
1.292 raeburn 1263: }
1264: }
1.285 raeburn 1265: }
1266: }
1.512.2.9! raeburn 1267: if (keys(%aggregate) > 0) {
1.289 albertel 1268: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1269: $cdomain,$cname);
1270: }
1.472 raeburn 1271: if (keys(%anoncounter) > 0) {
1.481 raeburn 1272: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1273: $cdomain,$cname);
1.472 raeburn 1274: }
1.479 raeburn 1275: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1276: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1277: $cdomain,$cname);
1.479 raeburn 1278: }
1.292 raeburn 1279: }
1.289 albertel 1280:
1.65 albertel 1281: sub checkout_msg {
1.211 albertel 1282: my %lt=&Apache::lonlocal::texthash(
1283: 'resource'=>'The resource needs to be checked out',
1284: '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.',
1285: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1286: 'checkout'=>'Check out Exam for Viewing',
1287: 'checkout?'=>'Check out Exam?');
1.352 albertel 1288: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1289: return (<<ENDCHECKOUT);
1.211 albertel 1290: <h2>$lt{'resource'}</h2>
1291: <p>$lt{'id_expln'}</p>
1.449 bisitz 1292: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1293: <form name="checkout" method="post" action="$uri">
1.91 albertel 1294: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1295: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1296: </form>
1297: ENDCHECKOUT
1298: }
1299:
1.252 albertel 1300: sub firstaccess_msg {
1.253 albertel 1301: my ($time,$symb)=@_;
1.414 albertel 1302: my $result;
1303: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1304: if ($interval[1] eq 'map') {
1305: my ($map)=&Apache::lonnet::decode_symb($symb);
1306: my $foldertitle=&Apache::lonnet::gettitle($map);
1307:
1308: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1309: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1310: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1311: ,$foldertitle,$time)."</p>";
1.414 albertel 1312: } elsif ($interval[1] eq 'course') {
1313: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1314: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1315: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1316: ,$course,$time)."</p>";
1.414 albertel 1317: } else {
1318: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1319: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1320: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1321: ,$title,$time)."</p>";
1.414 albertel 1322: }
1.352 albertel 1323: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1324: my $buttontext = &mt('Show Resource');
1325: my $timertext = &mt('Start Timer?');
1.414 albertel 1326: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1327: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1328: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1329: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1330: </form>
1331: ENDCHECKOUT
1.414 albertel 1332: return $result;
1.252 albertel 1333: }
1334:
1.204 albertel 1335: sub init_problem_globals {
1336: my ($type)=@_;
1337: #initialize globals
1.308 foxr 1338: # For problems, we start out in part 0 (outside a <part> tag).
1339: # and part 0 is used to describe the main body of the <problem>
1340: #
1.204 albertel 1341: if ($type eq 'problem') {
1342: $Apache::inputtags::part='0';
1343: @Apache::inputtags::partlist=('0');
1.405 albertel 1344: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1345: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1346:
1.266 albertel 1347: } elsif ($type eq 'library') {
1.204 albertel 1348: $Apache::inputtags::part='';
1349: @Apache::inputtags::partlist=();
1.405 albertel 1350: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1351: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1352:
1.304 albertel 1353: } elsif ($type eq 'Task') {
1354: $Apache::inputtags::part='0';
1355: @Apache::inputtags::partlist=('0');
1.405 albertel 1356: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1357: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1358: }
1.477 www 1359: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1360: @Apache::inputtags::responselist = ();
1361: @Apache::inputtags::importlist = ();
1362: @Apache::inputtags::previous=();
1363: @Apache::inputtags::previous_version=();
1364: $Apache::structuretags::printanswer='No';
1365: @Apache::structuretags::whileconds=();
1366: @Apache::structuretags::whilebody=();
1367: @Apache::structuretags::whileline=();
1368: $Apache::lonhomework::scantronmode=0;
1369: undef($Apache::lonhomework::name);
1.358 albertel 1370: undef($Apache::lonhomework::default_type);
1371: undef($Apache::lonhomework::type);
1.204 albertel 1372: }
1373:
1374: sub reset_problem_globals {
1375: my ($type)=@_;
1376: undef(%Apache::lonhomework::history);
1377: undef(%Apache::lonhomework::results);
1378: undef($Apache::inputtags::part);
1.498 raeburn 1379: if ($type eq 'Task') {
1380: undef($Apache::inputtags::slot_name);
1.512.2.9! raeburn 1381: } elsif ($type eq 'problem') {
! 1382: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1383: }
1.208 albertel 1384: #don't undef this, lonhomework.pm takes care of this, we use this to
1385: #detect if we try to do 2 problems in one file
1386: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1387: undef($Apache::lonhomework::name);
1.358 albertel 1388: undef($Apache::lonhomework::default_type);
1389: undef($Apache::lonhomework::type);
1390: undef($Apache::lonhomework::scantronmode);
1391: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1392: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1393: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1394: }
1395:
1.241 albertel 1396: sub set_problem_state {
1.240 albertel 1397: my ($part)=@_;
1.284 albertel 1398: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1399: $Apache::lonhomework::history{"resource.$part.solved"}=
1400: 'correct_by_student';
1401: }
1402: }
1403:
1.241 albertel 1404: sub get_problem_status {
1405: my ($part)=@_;
1.267 albertel 1406: my $problem_status;
1.284 albertel 1407: if ($env{'request.state'} eq 'construct' &&
1408: defined($env{'form.problemstatus'})) {
1409: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1410: } else {
1411: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1412: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1413: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1414: }
1415: return $problem_status;
1416: }
1417:
1.9 albertel 1418: sub start_problem {
1.326 albertel 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1420:
1.311 foxr 1421: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1422: if (!$Apache::lonxml::metamode) {
1423: &Apache::lonxml::startredirection();
1424: }
1.311 foxr 1425:
1.308 foxr 1426: # Problems don't nest and we don't allow more than one <problem> in
1427: # a .problem file.
1428: #
1.184 albertel 1429: if ( $Apache::inputtags::part ne '' ||
1430: $Apache::lonhomework::parsing_a_problem) {
1431: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1432: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1433: return '';
1434: }
1.184 albertel 1435:
1436: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1437: &init_problem_globals('problem');
1.166 albertel 1438:
1.284 albertel 1439: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1440: $Apache::lonhomework::scantronmode=1;
1441: }
1.161 albertel 1442:
1.159 albertel 1443: if ($target ne 'analyze') {
1.415 raeburn 1444: my $type = &Apache::lonnet::EXT('resource.0.type');
1445: $Apache::lonhomework::type=$type;
1.284 albertel 1446: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1447: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1448: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1449: }
1.332 albertel 1450: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1451: }
1.164 albertel 1452: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1453: my $uri=$env{'request.uri'};
1.159 albertel 1454: if ($uri=~/\.(\w+)$/) {
1455: $Apache::lonhomework::type=$1;
1456: &Apache::lonxml::debug("Using type of $1");
1457: } else {
1458: $Apache::lonhomework::type='problem';
1459: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1460: }
1.87 albertel 1461: }
1.301 albertel 1462: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1463:
1.363 albertel 1464: &initialize_storage();
1.389 albertel 1465: if ($target ne 'analyze'
1466: && $env{'request.state'} eq 'construct') {
1467: &set_problem_state('0');
1468: }
1469:
1.366 albertel 1470: if ($target eq 'web') {
1471: &Apache::lonxml::debug(" grading history ");
1472: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1473: }
1.363 albertel 1474:
1.159 albertel 1475: #added vars to the scripting enviroment
1.213 albertel 1476: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1477: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1478: &Apache::run::run($expression,$safeeval);
1.159 albertel 1479: my $status;
1480: my $accessmsg;
1.508 raeburn 1481: my $resource_due;
1.159 albertel 1482:
1.343 albertel 1483: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.9! raeburn 1484: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1485:
1486: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1487: $target eq 'tex') {
1488: if ($env{'form.markaccess'}) {
1489: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.8 raeburn 1490: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1491: }
1492:
1493: ($status,$accessmsg,$slot_name,$slot) =
1494: &Apache::lonhomework::check_slot_access('0','problem');
1495: push (@Apache::inputtags::status,$status);
1496: }
1497:
1.354 albertel 1498: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1499: || $target eq 'edit') {
1.512.2.9! raeburn 1500: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1501: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1502: $name);
1.512.2.9! raeburn 1503: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
! 1504: my ($symb)= &Apache::lonnet::whichuser();
! 1505: my $navmap = Apache::lonnavmaps::navmap->new();
! 1506: if (ref($navmap)) {
! 1507: my $res = $navmap->getBySymb($symb);
! 1508: if (ref($res)) {
! 1509: $probpartlist = $res->parts();
! 1510: }
! 1511: }
1.350 albertel 1512: }
1513:
1.284 albertel 1514: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1515:
1.479 raeburn 1516: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1517: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1518: $target eq 'tex') {
1.479 raeburn 1519:
1.159 albertel 1520: #handle rand seed in construction space
1.512.2.9! raeburn 1521: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
! 1522: if (($target eq 'grade') && &Apache::response::submitted()) {
! 1523: if ($Apache::lonhomework::type eq 'randomizetry') {
! 1524: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
! 1525: } else {
! 1526: my @parts;
! 1527: if (ref($probpartlist) eq 'ARRAY') {
! 1528: @parts = @{$probpartlist};
! 1529: }
! 1530: unless (@parts) {
! 1531: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
! 1532: }
! 1533: }
! 1534: }
1.367 albertel 1535: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1536:
1.333 albertel 1537: if ($env{'request.state'} ne "construct" &&
1538: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1539: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1540: $rndseed.'" />'.
1541: '<input type="submit" name="resetdata"
1542: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1543: if (exists($env{'form.username'})) {
1544: $form_tag_start.=
1.164 albertel 1545: '<input type="hidden" name="username"
1.284 albertel 1546: value="'.$env{'form.username'}.'" />';
1.334 albertel 1547: }
1.462 raeburn 1548: if ($env{'request.role.adv'}) {
1549: $form_tag_start.= ' <label class="LC_nobreak">'
1550: .'<input type="checkbox" name="showallfoils"';
1551: if (defined($env{'form.showallfoils'})) {
1552: $form_tag_start.=' checked="checked"';
1553: }
1554: $form_tag_start.= ' /> '
1555: .&mt('Show All Foils')
1556: .'</label>';
1557: }
1.417 www 1558: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1559: $form_tag_start.=&practice_problem_header();
1.417 www 1560: }
1.462 raeburn 1561: $form_tag_start.='<hr />';
1.479 raeburn 1562: } elsif (($env{'request.state'} ne "construct") &&
1563: ($Apache::lonhomework::type eq 'randomizetry') &&
1564: ($status eq 'CAN_ANSWER')) {
1565: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1566: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1567: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1568: }
1.324 albertel 1569:
1.159 albertel 1570: my $expression='$external::datestatus="'.$status.'";';
1571: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1572: &Apache::run::run($expression,$safeeval);
1573: &Apache::lonxml::debug("Got $status");
1.324 albertel 1574:
1.159 albertel 1575: if (( $status eq 'CLOSED' ) ||
1576: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1577: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1578: ( $status eq 'BANNED') ||
1.216 albertel 1579: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1580: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1581: ( $status eq 'NOTRESERVABLE') ||
1582: ( $status eq 'RESERVABLE') ||
1583: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1584: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1585: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1586: $style);
1.159 albertel 1587: if ( $target eq "web" ) {
1.343 albertel 1588: my $msg;
1.159 albertel 1589: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1590: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1591: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1592: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1593: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1594: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1595: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1596: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1597: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1598: }
1.216 albertel 1599: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1600: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1601: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1602: $msg.=&checkout_msg();
1.252 albertel 1603: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1604: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1605: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1606: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1607: } elsif ($status eq 'RESERVABLE') {
1608: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1609: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1610: '<br />'.
1611: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1612: } elsif ($status eq 'RESERVABLE_LATER') {
1613: $msg.=&mt('Window to make a reservation will open [_1].',
1614: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1615: } elsif ($status eq 'NOTRESERVABLE') {
1616: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1617: }
1618: $result.=$msg.'<br />';
1619: } elsif ($target eq 'tex') {
1.332 albertel 1620: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1621: : '\begin{minipage}{\textwidth}';
1.443 foxr 1622: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1623: $startminipage.'\vskip 0 mm';
1.159 albertel 1624: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1625: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1626: } else {
1.211 albertel 1627: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1628: }
1629: }
1.324 albertel 1630: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1631: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1632: $style);
1.324 albertel 1633: if ($target eq 'web') {
1.375 albertel 1634: $result .=
1635: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1636: } elsif ($target eq 'grade') {
1637: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1638: 'problem');
1639: }
1.159 albertel 1640: } elsif ($target eq 'web') {
1.508 raeburn 1641: if ($status eq 'CAN_ANSWER') {
1642: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1643: if ($slot_name ne '') {
1644: my $checked_in =
1645: $Apache::lonhomework::history{'resource.0.checkedin'};
1646: if ($checked_in eq '') {
1647: # unproctored slot access, self checkin
1648: &Apache::bridgetask::check_in('problem',undef,undef,
1649: $slot_name);
1650: $checked_in =
1651: $Apache::lonhomework::results{"resource.0.checkedin"};
1652: }
1653: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1654: if ($slot->{'starttime'} < time()) {
1655: if (!$resource_due) {
1656: $resource_due = $slot->{'endtime'};
1657: } elsif ($slot->{'endtime'} < $resource_due) {
1658: $resource_due = $slot->{'endtime'};
1659: }
1660: }
1661: }
1662: }
1663: if ($resource_due) {
1664: my $time_left = $resource_due - time();
1665: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1666: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1667: }
1668: }
1669: }
1.368 albertel 1670: $result.="\n $form_tag_start \t".
1.227 albertel 1671: '<input type="hidden" name="submitted" value="yes" />';
1672: # create a page header and exit
1.284 albertel 1673: if ($env{'request.state'} eq "construct") {
1674: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1675: if ($Apache::lonhomework::type eq 'practice') {
1676: $result.= '<input type="submit" name="resetdata" '.
1677: 'value="'.&mt('New Problem Variation').'" />'.
1678: &practice_problem_header().'<hr />';
1679: }
1.227 albertel 1680: }
1681: # if we are viewing someone else preserve that info
1.284 albertel 1682: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1683: foreach my $field ('symb','courseid','domain','username') {
1684: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1685: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1686: }
1.479 raeburn 1687: foreach my $field ('trial','questiontype') {
1688: if ($env{"form.grade_$field"} ne '') {
1689: $result .= '<input type="hidden" name="grade_'.$field.
1690: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1691: }
1692: }
1.159 albertel 1693: }
1.490 raeburn 1694: if ($env{'form.grade_imsexport'}) {
1695: $result = '';
1696: }
1.159 albertel 1697: } elsif ($target eq 'tex') {
1.319 foxr 1698: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1699: $result .= &select_metadata_hyphenation();
1700:
1.319 foxr 1701:
1.99 sakharuk 1702: }
1.159 albertel 1703: } elsif ($target eq 'edit') {
1.343 albertel 1704: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1705: $Apache::lonxml::warnings_error_header=
1706: &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 1707: my $temp=&Apache::edit::insertlist($target,$token);
1708: $result.=$temp;
1709: } elsif ($target eq 'modified') {
1710: $result=$token->[4];
1711: } else {
1712: # page_start returned a starting result, delete it if we don't need it
1713: $result = '';
1.99 sakharuk 1714: }
1.159 albertel 1715: return $result;
1.9 albertel 1716: }
1717:
1718: sub end_problem {
1.159 albertel 1719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1720: my $result;
1.310 foxr 1721:
1.321 albertel 1722: if (!$Apache::lonxml::metamode) {
1723: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1724: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1725: }
1.319 foxr 1726:
1727: if ($target eq 'tex') {
1.321 albertel 1728: # Figure out the front matter and replace the
1729: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1730: # this in end_problem because whether or not we display due
1731: # dates depends on whether due dates have already been
1732: # displayed in the problem parts.
1733:
1.319 foxr 1734: my $frontmatter = '';
1735: my $startminipage = '';
1736: if (not $env{'form.problem_split'}=~/yes/) {
1737: $startminipage = '\begin{minipage}{\textwidth}';
1738: }
1739: my $id = $Apache::inputtags::part;
1740: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1741: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9! raeburn 1742: my @packages = split(/,/,$packages);
1.319 foxr 1743: my $allow_print_points = 0;
1744: foreach my $partial_key (@packages) {
1745: if ($partial_key=~m/^part_0$/) {
1746: $allow_print_points=1;
1747: }
1748: }
1749: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1750: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1751: if (lc($env{'course.'.$env{'request.course.id'}.
1752: '.disableexampointprint'}) eq 'yes') {
1753: $allow_print_points=0;
1754: }
1755: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1756: 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 1757: &clear_required_languages();
1.319 foxr 1758: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1759: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1760:
1761: # Figure out what the due date is and if we need to print
1762: # it in the problem header. We have been logging the
1763: # last due date written to file.
1764:
1765: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1766: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1767: my $duedate_text = &mt('Due date: [_1]'
1768: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1769: my $temp_file;
1770: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1771:
1772: # Figure out what the last printed due date is or set it
1773: # to the epoch if no duedates have been printed.
1774:
1775: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1776: if (-e $filename) {
1777: $temp_file = Apache::File->new($filename);
1778: my @due_file = <$temp_file>;
1779: $due_file_content = $due_file[$#due_file];
1780: chomp $due_file_content;
1781: }
1782:
1783: # We display the due date iff it is not the same as the last
1784: # duedate in problem header ($due_file_content), and
1785: # none of our parts displayed a duedate.
1786: #
1787: my $parts_with_displayduedate;
1788: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1789: $parts_with_displayduedate =
1790: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1791: } else {
1792: $parts_with_displayduedate = 0;
1793: }
1794: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1795: $temp_file = Apache::File->new('>'.$filename);
1796: print $temp_file "$duetime\n";
1797: if (not $env{'request.symb'} =~ m/\.page_/) {
1798: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1799: $frontmatter .= $begin_doc.
1.448 bisitz 1800: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1801: } else {
1802: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1803: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1804: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1805: }
1.319 foxr 1806: }
1807: } else {
1.448 bisitz 1808: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1809: }
1810: } else {
1811: if (not $env{'request.symb'} =~ m/\.page_/) {
1812: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1813: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1814: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1815: }
1.319 foxr 1816: } else {
1.381 albertel 1817: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1818: }
1819: }
1820: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1821: }
1822:
1.159 albertel 1823: my $status=$Apache::inputtags::status['-1'];
1824: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1825: $target eq 'tex') {
1.249 albertel 1826: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1827: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1828: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1829: &Apache::inputtags::grade;
1.324 albertel 1830: } elsif ($status eq 'NEEDS_CHECKIN') {
1831: # no need to grade, and don't want to hide data
1.249 albertel 1832: } else {
1833: # move any submission data to .hidden
1834: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1835: }
1.159 albertel 1836: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1837: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1838: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1839: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1840: # if part is zero, no <part>s existed, so we need show the current
1841: # grading status
1842: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1843: $result.= $gradestatus;
1844: }
1845: if (
1.284 albertel 1846: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1847: ($target eq 'answer') || ($target eq 'tex')
1848: ) {
1.490 raeburn 1849: if (($target ne 'tex') &&
1850: ($env{'form.answer_output_mode'} ne 'tex') &&
1851: (!$env{'form.grade_imsexport'})) {
1.254 www 1852: $result.="</form>";
1.159 albertel 1853: }
1854: if ($target eq 'web') {
1.507 raeburn 1855: #
1856: # Closing </body></html> not added by end_page().
1857: # Added separately at end of this routine, after added
1858: # <script></script> so document will be valid xhtml.
1859: #
1860: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1861: 'notbody' => 1});
1.159 albertel 1862: } elsif ($target eq 'tex') {
1.178 sakharuk 1863: my $endminipage = '';
1.284 albertel 1864: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1865: $endminipage = '\end{minipage}';
1866: }
1.284 albertel 1867: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1868: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1869: } else {
1.262 sakharuk 1870: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1871: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1872: $result .= $endminipage.'\end{document} ';
1873: } else {
1.382 albertel 1874: $result .= $endminipage;
1.262 sakharuk 1875: }
1.159 albertel 1876: }
1877: }
1878: }
1.476 www 1879: if ($target eq 'web') {
1880: $result.=&Apache::functionplotresponse::init_script();
1881: }
1.159 albertel 1882: if ($target eq 'grade') {
1883: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1884: &finalize_storage();
1885: }
1.284 albertel 1886: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1887: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1888: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1889: # normally we get it from above, but in CSTR
1.172 albertel 1890: # we always show answer mode too.
1.159 albertel 1891: }
1892: } elsif ($target eq 'meta') {
1893: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1894: @Apache::inputtags::response=();
1.159 albertel 1895: $result=&Apache::response::mandatory_part_meta;
1896: }
1.215 albertel 1897: $result.=&Apache::response::meta_part_order();
1.258 albertel 1898: $result.=&Apache::response::meta_response_order();
1.159 albertel 1899: } elsif ($target eq 'edit') {
1900: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1901: $result .= &problem_edit_footer();
1.320 albertel 1902: } elsif ($target eq 'modified') {
1903: $result .= $token->[2];
1.159 albertel 1904: }
1.155 albertel 1905:
1.284 albertel 1906: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1907: &Apache::inputtags::check_for_duplicate_ids();
1908: }
1.204 albertel 1909:
1910: &reset_problem_globals('problem');
1.159 albertel 1911:
1.502 foxr 1912: #
1913: # This shouild be just above the return so that the
1914: # time put in the javascript is as late as possible in the
1915: # computation:
1916: #
1917: if ($target eq 'web') {
1918: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1919: #
1920: # Closing tags delayed so any <script></script> tags
1921: # not in head can appear inside body, for valid xhtml.
1922: #
1923: $result .= "</body>\n</html>";
1.502 foxr 1924: }
1.159 albertel 1925: return $result;
1.48 albertel 1926: }
1927:
1.108 albertel 1928:
1.48 albertel 1929: sub start_library {
1.159 albertel 1930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1931: my ($result,$form_tag_start);
1.371 albertel 1932: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1933: &init_problem_globals('library');
1934: $Apache::lonhomework::type='problem';
1935: }
1.159 albertel 1936: if ($target eq 'edit') {
1.343 albertel 1937: ($result,$form_tag_start)=
1938: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1939: 'Edit');
1940: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1941: my $temp=&Apache::edit::insertlist($target,$token);
1942: $result.=$temp;
1943: } elsif ($target eq 'modified') {
1944: $result=$token->[4];
1.340 albertel 1945: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1946: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1947: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1948: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1949: ($result,$form_tag_start)=
1950: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1951: $name);
1.479 raeburn 1952: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1953: $result.=" \n $form_tag_start".
1.159 albertel 1954: '<input type="hidden" name="submitted" value="yes" />';
1955: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1956: if ($Apache::lonhomework::type eq 'practice') {
1957: $result.= '<input type="submit" name="resetdata" '.
1958: 'value="'.&mt('New Problem Variation').'" />'.
1959: &practice_problem_header().'<hr />';
1960: }
1.159 albertel 1961: }
1962: return $result;
1.48 albertel 1963: }
1964:
1965: sub end_library {
1.159 albertel 1966: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1967: my $result='';
1968: if ($target eq 'edit') {
1969: $result=&problem_edit_footer();
1.371 albertel 1970: } elsif ($target eq 'web'
1971: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1972: && $env{'request.state'} eq "construct") {
1.349 albertel 1973: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1974: }
1.371 albertel 1975: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1976: &reset_problem_globals('library');
1977: }
1.159 albertel 1978: return $result;
1.197 www 1979: }
1980:
1981: sub start_definetag {
1.326 albertel 1982: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1983:
1984: my $result;
1985:
1986: my $name = $token->[2]->{'name'};
1.326 albertel 1987: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1988: if ($target eq 'web') {
1989: if ($name=~/^\//) {
1990: $result=
1991: '<br /><table class="LC_sty_end"><tr><th>'.
1992: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1993: } else {
1994: $result=
1995: '<br /><table class="LC_sty_begin"><tr><th>'.
1996: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1997: }
1998: $skip = &HTML::Entities::encode($skip, '<>&"');
1999: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2000: }
2001: return $result;
2002: }
2003:
2004: sub end_definetag {
2005: return '';
1.1 albertel 2006: }
2007:
2008: sub start_block {
1.201 albertel 2009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2010:
2011: my $result;
1.1 albertel 2012:
1.339 albertel 2013: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2014: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2015: my $code = $token->[2]->{'condition'};
1.385 albertel 2016: if (defined($code) && $code ne '') {
1.137 albertel 2017: if (!$Apache::lonxml::default_homework_loaded) {
2018: &Apache::lonxml::default_homework_load($safeeval);
2019: }
1.131 albertel 2020: $result = &Apache::run::run($code,$safeeval);
2021: &Apache::lonxml::debug("block :$code: returned :$result:");
2022: } else {
2023: $result='1';
2024: }
2025: if ( ! $result ) {
1.201 albertel 2026: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2027: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2028: }
2029: $result='';
2030: } elsif ($target eq 'edit') {
2031: $result .=&Apache::edit::tag_start($target,$token);
2032: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2033: $token,40);
2034: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2035: } elsif ($target eq 'modified') {
2036: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2037: $safeeval,'condition');
2038: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2039: }
1.131 albertel 2040: return $result;
1.1 albertel 2041: }
2042:
2043: sub end_block {
1.167 www 2044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2045: my $result;
2046: if ($target eq "edit") {
2047: $result.= &Apache::edit::tag_end($target,$token,'');
2048: }
2049: return $result;
2050: }
1.500 foxr 2051: #
2052: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2053: # ...
2054: # </languageblock>
2055: #
2056: # This declares the intent to provide content that can be rendered in the
2057: # set of languages in the include specificatino but not in the exclude
2058: # specification. If a currently preferred language is in the include list
2059: # the content in the <languageblock>...</languageblock> is rendered
2060: # If the currently preferred language is in the exclude list,
2061: # the content in the <languageblock>..></languageblock is not rendered.
2062: #
2063: # Pathalogical case handling:
2064: # - Include specified, without the preferred language but exclude specified
2065: # also without the preferred langauge results in rendering the block.
2066: # - Exclude specified without include and excluden not containing a
2067: # preferred language renders the block.
2068: # - Include and exclude both specifying the preferred language does not
2069: # render the block.
2070: # - If neither include/exclude is specified, the block gets rendered.
2071: #
2072: # This tag has no effect when target is in {edit, modified}
2073: #
1.167 www 2074: sub start_languageblock {
1.201 albertel 2075: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2076:
1.500 foxr 2077: my $result = '';
1.167 www 2078:
1.339 albertel 2079: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2080: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2081: my $include = $token->[2]->{'include'};
2082: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2083: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2084:
2085: # This should not even happen, since we should at least have the server language
2086:
2087: if (!$preferred_languages[0]) {
2088: $preferred_languages[0]='en';
2089: }
2090:
2091: # Now loop over all languages in order of preference
2092:
2093: my $render;
1.398 www 2094: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2095:
2096: # If neither include/nor exlude is present the block is going
2097: # to get rendered.
2098:
1.399 www 2099: my $found=0;
1.500 foxr 2100: $render=1;
2101:
2102: # If include is specified, don't render the block
2103: # unless the preferred language is included in the set.
2104:
1.398 www 2105: if ($include) {
1.500 foxr 2106: $render=0;
1.398 www 2107: foreach my $included_language (split(/\,/,$include)) {
2108: if ($included_language eq $preferred_language) {
1.500 foxr 2109: $render=1;
1.399 www 2110: $found=1;
1.500 foxr 2111: last; # Only need to find the first.
1.398 www 2112: }
2113: }
2114: }
1.500 foxr 2115: # Do we have an exclude argument?
2116: # If so, and one of the languages matches a preferred language
2117: # inhibit rendering the block. Note that in the pathalogical case the
2118: # author has specified a preferred language in both the include and exclude
2119: # attribte exclude is preferred.
2120:
1.398 www 2121: if ($exclude) {
1.500 foxr 2122: $render=1;
1.398 www 2123: foreach my $excluded_language (split(/\,/,$exclude)) {
2124: if ($excluded_language eq $preferred_language) {
1.500 foxr 2125: $render=0;
1.399 www 2126: $found=1;
1.500 foxr 2127: last; # Only need to find the first.
1.398 www 2128: }
2129: }
2130: }
1.500 foxr 2131: if ($found) {
2132: last; # Done on any match of include or exclude.
2133: }
1.398 www 2134: }
1.500 foxr 2135: # If $render not true skip the entire block until </languageblock>
2136: #
2137:
2138: if ( ! $render ) {
1.201 albertel 2139: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2140: $style);
2141: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2142: }
1.500 foxr 2143: # If $render is true, we've not skipped the contents of the <languageglock>
2144: # and the normal loncapa processing flow will render it as a matter of course.
2145:
1.167 www 2146: } elsif ($target eq 'edit') {
2147: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2148: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2149: $token,40);
1.211 albertel 2150: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2151: $token,40);
2152: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2153: } elsif ($target eq 'modified') {
2154: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2155: $safeeval,'include',
2156: 'exclude');
1.167 www 2157: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2158: }
2159: return $result;
2160: }
2161:
2162: sub end_languageblock {
1.170 www 2163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2164: my $result;
1.201 albertel 2165: if ($target eq "edit") {
1.170 www 2166: $result.= &Apache::edit::tag_end($target,$token,'');
2167: }
2168: return $result;
2169: }
1.500 foxr 2170: # languagblock specific tags:
2171: {
2172: # For chunks of a resource that has translations, this hash contains
2173: # the translations available indexed by language name.
2174: #
2175:
2176: my %available_texts;
1.170 www 2177:
1.500 foxr 2178: # <translated> starts a block of a resource that has multiple translations.
2179: # See the <lang> tag as well.
2180: # When </translated> is encountered if there is a translation for the
2181: # currently preferred language, that is rendered inthe web/tex/webgrade
2182: # targets. Otherwise, the default text is rendered.
2183: #
2184: # Note that <lang> is only registered for the duration of the
2185: # <translated>...</translated> block
2186: #
2187: # Pathalogical case handling:
2188: # - If there is no <lang> that specifies a 'default' and there is no
2189: # translation that matches a preferred language, nothing is rendered.
2190: # - Nested <translated>...</translated> might be linguistically supported by
2191: # XML due to the stack nature of tag registration(?) however the rendered
2192: # output will be incorrect because there is only one %available_texts
2193: # has and end_translated clears it.
2194: # - Material outside of a <lang>...</lang> block within the
2195: # <translated>...<translated> block won't render either e.g.:
2196: # <translated>
2197: # The following will be in your preferred langauge:
2198: # <lang which='en'>
2199: # This section in english
2200: # </lang>
2201: # <lang which='sgeiso'>
2202: # Hier es ist auf Deutsch.
2203: # </lang>
2204: # <lang which='sfriso'>
2205: # En Francais
2206: # </lang>
2207: # </translated>
2208: #
2209: # The introductory text prior to the first <lang> tag is not rendered.
2210: #
1.397 albertel 2211: sub start_translated {
2212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2213: &Apache::lonxml::register('Apache::structuretags',('lang'));
2214: undef(%available_texts);
2215: }
2216:
2217: sub end_translated {
2218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2219: my $result;
2220: #show the translation on viewable targets
2221: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2222: # or non-viewable targets, if it's embedded in something that
2223: # wants the output
2224: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2225: && &Apache::lonxml::in_redirection() ) ) {
2226: my @possibilities = keys(%available_texts);
2227: my $which =
2228: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2229: if ($target eq 'tex') {
2230: $result = &select_hyphenation($which);
2231: }
2232: $result .= $available_texts{$which};
2233: if ($target eq 'tex') {
2234: $result .= &select_metadata_hyphenation(); # Restore original language.
2235: }
1.397 albertel 2236: }
2237: undef(%available_texts);
2238: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2239: return $result;
2240: }
2241:
1.500 foxr 2242: # <lang [which='language-name'] [other='lang1,lang2...']>
2243: # Specifies that the block contained within it is a translation
2244: # for a specific language specified by the 'which' attribute. The
2245: # 'other' attribute can be used by itself or in conjunction with
2246: # which to specify this tag _may_ be used as a translation for some
2247: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2248: # specifying that the block provides a translation for US (primary)
2249: # Canadian, Australian and UK Englush.
2250: #
2251: # Comment: this seems a bit silly why not just support a list of languages
2252: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2253: #
2254: # Effect:
2255: # The material within the <lang>..</lang> block is stored in the
2256: # specified set of $available_texts hash entries, the appropriate one
2257: # is selected at </translated> time.
2258: #
2259: # Pathalogical case handling:
2260: # If a language occurs multiple times within a <translated> block,
2261: # only the last one is rendered e.g.:
2262: #
2263: # <translated>
2264: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2265: # Red green color blindness is quite common affecting about 7.8% of
2266: # the male population, but onloy about .65% of the female population.
2267: # </lang>
2268: # Red green colour blindness is quite common affecting about 7.8% of
2269: # the male population, but onloy about .65% of the female population.
2270: # <lang which='seniso', other='senisoCA,senisoAU'>
2271: # </translated>
2272: #
2273: # renders the correct spelling of color (colour) for people who have specified
2274: # a preferred language that is one of the British Commonwealth languages
2275: # even though those are also listed as valid selections for the US english
2276: # <lang> block.
2277: #
1.397 albertel 2278: sub start_lang {
2279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2280: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2281: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2282: &Apache::lonxml::startredirection();
2283: }
2284: return '';
2285: }
2286:
2287: sub end_lang {
2288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2289: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2290: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2291: my $result = &Apache::lonxml::endredirection();
2292: my $which = &Apache::lonxml::get_param('which',$parstack,
2293: $safeeval);
1.431 raeburn 2294: if ($which=~/\w/) {
2295: $available_texts{$which} = $result;
2296: }
2297: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2298: $safeeval);
2299: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2300: if ($language=~/\w/) {
2301: $available_texts{$language} = $result;
2302: }
1.427 bisitz 2303: }
2304:
1.397 albertel 2305: }
2306: return '';
2307: }
1.500 foxr 2308: } # end langauge block specific tags.
2309:
1.397 albertel 2310:
1.170 www 2311: sub start_instructorcomment {
1.201 albertel 2312: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2313:
2314: my $result;
2315:
1.339 albertel 2316: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2317: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2318: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2319: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2320: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2321: $parser,$style);
1.170 www 2322: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2323: }
2324: $result='';
2325: } elsif ($target eq 'edit') {
2326: $result .=&Apache::edit::tag_start($target,$token);
2327: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2328: }
2329: return $result;
2330: }
2331:
2332: sub end_instructorcomment {
1.159 albertel 2333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2334: my $result;
2335: if ($target eq "edit") {
2336: $result.= &Apache::edit::tag_end($target,$token,'');
2337: }
2338: return $result;
1.4 tsai 2339: }
2340:
2341: sub start_while {
1.326 albertel 2342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2343:
1.160 albertel 2344: my $result;
1.339 albertel 2345: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2346: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2347: my $code = $token->[2]->{'condition'};
1.4 tsai 2348:
1.160 albertel 2349: push( @Apache::structuretags::whileconds, $code);
2350: if (!$Apache::lonxml::default_homework_loaded) {
2351: &Apache::lonxml::default_homework_load($safeeval);
2352: }
2353: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2354: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2355: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2356: push( @Apache::structuretags::whileline, $token->[5]);
2357: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2358: if ( $result ) {
2359: &Apache::lonxml::newparser($parser,\$bodytext);
2360: }
2361: } elsif ($target eq 'edit') {
2362: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2363: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2364: $token,40);
2365: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2366: } elsif ($target eq 'modified') {
2367: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2368: $safeeval,'condition');
2369: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2370: }
1.160 albertel 2371: return $result;
1.4 tsai 2372: }
2373:
2374: sub end_while {
1.159 albertel 2375: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2376: my $result;
2377:
1.339 albertel 2378: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2379: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2380: my $code = pop(@Apache::structuretags::whileconds);
2381: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2382: my $line = pop(@Apache::structuretags::whileline);
2383: my $return = &Apache::run::run($code,$safeeval);
2384: my $starttime=time;
2385: my $error=0;
2386: while ($return) {
2387: if (time-$starttime >
2388: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2389: $return = 0; $error=1; next;
1.161 albertel 2390: }
2391: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2392: if ($target eq 'grade' || $target eq 'answer' ||
2393: $target eq 'analyze') {
2394: # grade/answer/analyze should produce no output but if we
2395: # are redirecting, the redirecter should know what to do
2396: # with the output
2397: if (!$Apache::lonxml::redirection) { undef($result); }
2398: }
1.161 albertel 2399: $return = &Apache::run::run($code,$safeeval);
2400: }
1.512.2.5 raeburn 2401: if ($error) {
2402: &Apache::lonxml::error(
2403: '<pre>'
2404: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2405: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2406: .&mt('This occurred while running <while> on line [_1].',
2407: $line)
2408: .'</pre>');
2409: }
1.160 albertel 2410: } elsif ($target eq "edit") {
2411: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2412: }
1.160 albertel 2413: return $result;
1.1 albertel 2414: }
1.6 tsai 2415:
1.160 albertel 2416: # <randomlist show="1">
1.6 tsai 2417: # <tag1>..</tag1>
2418: # <tag2>..</tag2>
2419: # <tag3>..</tag3>
1.160 albertel 2420: # ...
1.6 tsai 2421: # </randomlist>
2422: sub start_randomlist {
1.326 albertel 2423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2424: my $result;
1.339 albertel 2425: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2426: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2427: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2428: my $b_parser= HTML::LCParser->new(\$body);
2429: $b_parser->xml_mode(1);
2430: $b_parser->marked_sections(1);
1.159 albertel 2431: my $b_tok;
2432: my @randomlist;
2433: my $list_item;
2434: while($b_tok = $b_parser->get_token() ) {
2435: if($b_tok->[0] eq 'S') { # start tag
2436: # get content of the tag until matching end tag
2437: # get all text upto the matching tag
2438: # and push the content into @randomlist
2439: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2440: $b_parser);
2441: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2442: push(@randomlist,$list_item);
2443: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2444: # $list_item</b>";
2445: }
2446: if($b_tok->[0] eq 'T') { # text
2447: # what to do with text in between tags?
2448: # print "<b>TEXT $b_tok->[1]</b><br />";
2449: }
2450: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2451: # print "<b>END-TAG $b_tok->[1]</b><br />";
2452: # }
2453: }
1.303 albertel 2454: if (@randomlist) {
2455: my @idx_arr = (0 .. $#randomlist);
2456: &Apache::structuretags::shuffle(\@idx_arr);
2457: my $bodytext = '';
2458: my $show=$#randomlist;
2459: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2460: $showarg--;
2461: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2462: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2463: my @currlist;
2464: my $part = $Apache::inputtags::part;
2465: if ($part ne '') {
2466: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2467: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2468: if (!(grep(/^\Q$part\E$/,@currlist))) {
2469: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2470: }
2471: } else {
2472: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2473: }
2474: }
2475: }
1.512.2.9! raeburn 2476: for my $i (0 .. $show) {
! 2477: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2478: }
2479: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2480: }
2481: } elsif ($target eq 'edit' ) {
2482: $result .=&Apache::edit::tag_start($target,$token);
2483: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2484: $token,5);
2485: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2486: } elsif ($target eq 'modified' ) {
2487: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2488: $safeeval,'show');
2489: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2490: }
2491: return $result;
1.7 tsai 2492: }
2493:
2494: sub shuffle {
2495: my $a=shift;
2496: my $i;
1.303 albertel 2497: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2498: &Apache::response::pushrandomnumber();
1.159 albertel 2499: for($i=@$a;--$i;) {
2500: my $j=int(&Math::Random::random_uniform() * ($i+1));
2501: next if $i == $j;
2502: @$a[$i,$j] = @$a[$j,$i];
2503: }
1.251 albertel 2504: &Apache::response::poprandomnumber();
1.7 tsai 2505: }
1.6 tsai 2506: }
2507:
2508: sub end_randomlist {
1.159 albertel 2509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2510: my $result;
2511: if ($target eq 'edit' ) {
2512: $result=&Apache::edit::tag_end($target,$token,
2513: 'End Randomly Parsed Block');
2514: }
2515: return $result;
1.6 tsai 2516: }
2517:
1.283 albertel 2518: sub ordered_show_check {
2519: my $last_part=$Apache::inputtags::partlist[-2];
2520: my $in_order=
2521: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2522: my $in_order_show=1;
2523: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2524: $in_order_show=&Apache::response::check_status($last_part);
2525: }
2526: return $in_order_show;
2527: }
2528:
1.469 www 2529:
2530: sub start_startpartmarker {
2531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2532: my $result='';
2533: if ($target eq 'edit') {
2534: $result=&Apache::edit::tag_start($target,$token);
2535: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2536: $result.=&Apache::edit::end_table();
2537:
2538: }
2539: return $result;
2540: }
2541:
2542: sub end_startpartmarker {
2543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2544: my @result;
2545: if ($target eq 'edit') { $result[1]='no'; }
2546: return @result;
2547: }
2548:
2549: sub start_endpartmarker {
2550: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2551: my $result='';
2552: if ($target eq 'edit') {
2553: $result=&Apache::edit::tag_start($target,$token);
2554: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2555: $result.=&Apache::edit::end_table();
2556:
2557: }
2558: return $result;
2559: }
2560:
2561: sub end_endpartmarker {
2562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2563: my @result;
2564: if ($target eq 'edit') { $result[1]='no'; }
2565: return @result;
2566: }
2567:
2568:
2569:
2570:
2571:
1.11 albertel 2572: sub start_part {
1.326 albertel 2573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2574: if (!$Apache::lonxml::metamode) {
2575: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2576: # duedates.
2577: }
1.159 albertel 2578: my $result='';
1.386 albertel 2579: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2580: $Apache::inputtags::part=$id;
1.177 albertel 2581: push(@Apache::inputtags::partlist,$id);
2582: @Apache::inputtags::response=();
1.159 albertel 2583: @Apache::inputtags::previous=();
2584: @Apache::inputtags::previous_version=();
1.405 albertel 2585: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2586: &Apache::response::reset_params();
2587:
1.159 albertel 2588: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2589: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2590: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9! raeburn 2591: if ($Apache::lonhomework::type eq 'randomizetry') {
! 2592: my $rndseed=&setup_rndseed($safeeval,$target);
! 2593: if (($target eq 'grade') && &Apache::response::submitted()) {
! 2594: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
! 2595: }
! 2596: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
! 2597: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
! 2598: }
1.283 albertel 2599: my $in_order_show=&ordered_show_check();
1.214 albertel 2600: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2601: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2602: &Apache::run::run($expression,$safeeval);
1.159 albertel 2603:
2604: if ($target eq 'meta') {
1.224 www 2605: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2606: return &Apache::response::mandatory_part_meta.
2607: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2608: } elsif ($target eq 'web' || $target eq 'grade' ||
2609: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2610: if ($hidden || !$in_order_show) {
1.326 albertel 2611: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2612: } else {
2613: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2614: push (@Apache::inputtags::status,$status);
2615: my $expression='$external::datestatus="'.$status.'";';
2616: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2617: &Apache::run::run($expression,$safeeval);
1.284 albertel 2618: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2619: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2620: }
1.216 albertel 2621: if (( $status eq 'CLOSED' ) ||
2622: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2623: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2624: ( $status eq 'BANNED') ||
2625: ( $status eq 'UNAVAILABLE') ||
2626: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2627: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2628: $style);
1.159 albertel 2629: if ( $target eq "web" ) {
1.211 albertel 2630: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2631: } elsif ( $target eq 'tex' ) {
1.284 albertel 2632: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2633: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2634: } else {
1.211 albertel 2635: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2636: }
1.159 albertel 2637: }
2638: } else {
2639: if ($target eq 'tex') {
1.284 albertel 2640: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2641: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2642: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2643: } else {
2644: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2645: }
1.195 sakharuk 2646: }
1.159 albertel 2647: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2648: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9! raeburn 2649: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2650: my $allow_print_points = 0;
2651: foreach my $partial_key (@allkeys) {
1.230 albertel 2652: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2653: if ($1 ne '0') {$allow_print_points=1;}
2654: }
2655: }
1.275 albertel 2656: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2657: if (defined($maxtries) && $maxtries < 0) {
2658: $allow_print_points=0;
2659: }
1.302 albertel 2660: if (lc($env{'course.'.$env{'request.course.id'}.
2661: '.disableexampointprint'}) eq 'yes') {
2662: $allow_print_points=0;
2663: }
1.463 foxr 2664: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2665: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2666:
2667: }
1.233 www 2668: } elsif ($target eq 'web') {
1.479 raeburn 2669: if ($status eq 'CAN_ANSWER') {
2670: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2671: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2672: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2673: my $num = scalar(@Apache::inputtags::partlist)-1;
2674: if ($probrandomize eq 'randomizetry') {
2675: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2676: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2677: } else {
2678: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2679: if ($probrandtries ne $reqtries) {
2680: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2681: }
2682: }
2683: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2684: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2685: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2686: }
2687: }
1.475 raeburn 2688: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2689: }
2690: }
2691: }
2692: } elsif ($target eq 'edit') {
2693: $result.=&Apache::edit::tag_start($target,$token);
2694: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2695: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2696: ' '.
2697: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2698: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2699: } elsif ($target eq 'modified') {
2700: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2701: $safeeval,'id','display');
1.159 albertel 2702: if ($constructtag) {
1.225 albertel 2703: #limiting ids to only letters numbers, and space
1.224 www 2704: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2705: $result = &Apache::edit::rebuild_tag($token);
2706: }
2707: }
2708: return $result;
1.11 albertel 2709: }
2710:
2711: sub end_part {
1.159 albertel 2712: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2713: &Apache::lonxml::debug("in end_part $target ");
2714: my $status=$Apache::inputtags::status['-1'];
2715: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2716: my $in_order_show=&ordered_show_check();
1.321 albertel 2717: my $result;
2718: if (!$Apache::lonxml::metamode) {
2719: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2720: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2721: }
1.312 albertel 2722: if ($target eq 'grade') {
1.249 albertel 2723: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2724: !$hidden && $in_order_show) {
1.311 foxr 2725: $result.=&Apache::inputtags::grade;
1.249 albertel 2726: } else {
2727: # move any submission data to .hidden
2728: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2729: }
1.283 albertel 2730: } elsif (($target eq 'web' || $target eq 'tex') &&
2731: !$hidden && $in_order_show) {
1.159 albertel 2732: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2733: $target);
1.490 raeburn 2734: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2735: ($env{'form.grade_imsexport'})) {
1.212 albertel 2736: $gradestatus='';
2737: }
1.311 foxr 2738: $result.=$gradestatus;
1.265 sakharuk 2739: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2740: } elsif ($target eq 'edit') {
1.311 foxr 2741: $result.=&Apache::edit::end_table();
1.322 albertel 2742: } elsif ($target eq 'modified') {
2743: $result .= $token->[2];
1.159 albertel 2744: }
2745: pop @Apache::inputtags::status;
2746: $Apache::inputtags::part='';
1.295 albertel 2747: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2748: return $result;
1.11 albertel 2749: }
1.1 albertel 2750:
1.25 albertel 2751: sub start_preduedate {
1.326 albertel 2752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2753: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2754: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2755: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2756: if (!$Apache::lonhomework::scantronmode &&
2757: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2758: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2759: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2760: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2761: }
1.24 albertel 2762: }
1.159 albertel 2763: return '';
1.24 albertel 2764: }
2765:
1.25 albertel 2766: sub end_preduedate {
1.159 albertel 2767: return '';
1.24 albertel 2768: }
2769:
1.369 foxr 2770: # In all the modes where <postanswerdate> text is
2771: # displayable, all we do is eat up the text between the start/stop
2772: # tags if the conditions are not right to display it.
1.25 albertel 2773: sub start_postanswerdate {
1.326 albertel 2774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2775: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2776: &Apache::lonnet::allowed('pav',
2777: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2778: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2779: $target eq 'tex' ) {
1.300 albertel 2780: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2781: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2782: (($target eq 'tex') && !$pav)) {
1.326 albertel 2783: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2784: }
2785: }
2786: return '';
1.24 albertel 2787: }
2788:
1.25 albertel 2789: sub end_postanswerdate {
1.159 albertel 2790: return '';
1.24 albertel 2791: }
2792:
1.25 albertel 2793: sub start_notsolved {
1.326 albertel 2794: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2795: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2796: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2797: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2798: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2799: if ($gradestatus =~ /^correct/ &&
2800: &Apache::response::show_answer()) {
1.159 albertel 2801: &Apache::lonxml::debug("skipping");
1.326 albertel 2802: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2803: }
1.24 albertel 2804: }
1.159 albertel 2805: return '';
1.24 albertel 2806: }
2807:
1.25 albertel 2808: sub end_notsolved {
1.159 albertel 2809: return '';
1.24 albertel 2810: }
2811:
2812: sub start_solved {
1.326 albertel 2813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2814: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2815: $target eq 'tex') {
2816: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2817: if ($gradestatus !~ /^correct/ ||
2818: !&Apache::response::show_answer()) {
1.326 albertel 2819: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2820: }
1.24 albertel 2821: }
1.159 albertel 2822: return '';
1.24 albertel 2823: }
2824:
2825: sub end_solved {
1.248 albertel 2826: return '';
2827: }
2828:
2829: sub start_problemtype {
1.326 albertel 2830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2831: my $result;
1.339 albertel 2832: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2833: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2834: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2835: if (!defined($mode)) { $mode='show'; }
2836: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2837: my $found=0;
2838: foreach my $type (split(',',$for)) {
2839: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2840: }
2841: if ($mode eq 'show' && !$found) {
1.326 albertel 2842: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2843: }
2844: if ($mode eq 'hide' && $found) {
1.326 albertel 2845: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2846: }
2847: } elsif ($target eq 'edit') {
2848: $result .=&Apache::edit::tag_start($target,$token);
2849: $result.=&Apache::edit::select_arg('Mode:','mode',
2850: [['show','Show'],
2851: ['hide','Hide']]
2852: ,$token);
2853: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2854: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2855: ['survey','Survey'],
1.465 raeburn 2856: ['surveycred','Survey (with credit)'],
2857: ['anonsurvey','Anonymous Survey'],
2858: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2859: ['problem','Homework Problem'],
1.479 raeburn 2860: ['practice','Practice Problem'],
2861: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2862: ,$token);
2863: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2864: } elsif ($target eq 'modified') {
2865: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2866: $safeeval,'mode','for');
2867: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2868: }
2869: return $result;
2870: }
2871:
2872: sub end_problemtype {
1.159 albertel 2873: return '';
1.24 albertel 2874: }
1.34 albertel 2875:
2876: sub start_startouttext {
1.159 albertel 2877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2878: my @result=(''.'');
2879: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2880:
2881: my $nesting =
2882: &Apache::lonxml::set_state('outtext',
2883: &Apache::lonxml::get_state('outtext')+1);
2884: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2885: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2886: }
1.159 albertel 2887: return (@result);
1.34 albertel 2888: }
1.159 albertel 2889:
1.34 albertel 2890: sub end_startouttext {
1.326 albertel 2891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2892: my $result='';
2893: my $text='';
2894: if ($target eq 'edit') {
1.424 foxr 2895: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2896: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2897: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2898: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2899: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2900: .'</span></td>'
1.512.2.5 raeburn 2901: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2902: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2903: .'</span></td>'
1.474 raeburn 2904: .'<td>'
2905: .&Apache::edit::insertlist($target,$token)
2906: .'</td>'
1.512.2.5 raeburn 2907: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2908: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2909: &Apache::edit::end_row().
1.362 albertel 2910: &Apache::edit::start_spanning_row()."\n".
1.255 www 2911: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2912: }
2913: if ($target eq 'modified') {
1.219 albertel 2914: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2915: }
2916: if ($target eq 'tex') {
2917: $result .= '\noindent ';
2918: }
2919: return $result;
1.34 albertel 2920: }
1.159 albertel 2921:
1.34 albertel 2922: sub start_endouttext {
1.159 albertel 2923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2924: my $result='';
2925: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2926: if ($target eq "modified") {
2927: $result='<endouttext />'.
1.377 albertel 2928: &Apache::edit::handle_insertafter('startouttext');
2929: }
1.404 albertel 2930:
2931: my $nesting =
2932: &Apache::lonxml::set_state('outtext',
2933: &Apache::lonxml::get_state('outtext')-1);
2934: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2935: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2936: &Apache::lonxml::set_state('outtext', 0);
2937: }
1.159 albertel 2938: return $result;
1.34 albertel 2939: }
1.159 albertel 2940:
1.34 albertel 2941: sub end_endouttext {
1.159 albertel 2942: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2943: my @result=('','');
2944: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2945: return (@result);
1.34 albertel 2946: }
1.159 albertel 2947:
1.45 albertel 2948: sub delete_startouttext {
1.326 albertel 2949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2950: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2951: my $text=$$parser['-1']->get_text("/endouttext");
2952: my $ntoken=$$parser['-1']->get_token();
2953: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2954: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2955: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2956: # they did the last time round
2957: &Apache::lonxml::increasedepth($ntoken);
2958: &Apache::lonxml::decreasedepth($ntoken);
2959: return 1;
1.193 www 2960: }
2961:
2962: sub start_simpleeditbutton {
2963: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2964: my $result='';
1.284 albertel 2965: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2966: ($target eq 'web') &&
1.330 albertel 2967: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2968: my $url=$env{'request.noversionuri'};
1.193 www 2969: $url=~s/\?.*$//;
1.367 albertel 2970: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2971: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2972: # $result='<p class="LC_warning">'
2973: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2974: # .&Apache::loncommon::help_open_topic('Caching')
2975: # .'</p>';
1.486 www 2976: $result.=&Apache::loncommon::head_subbox(
2977: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2978: .&Apache::lonhtmlcommon::add_item_funclist(
2979: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2980: .&mt('Edit').'</a>')
1.486 www 2981: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2982:
1.193 www 2983: }
2984: return $result;
2985: }
2986:
2987: sub end_simpleeditbutton {
2988: return '';
1.45 albertel 2989: }
1.34 albertel 2990:
1.428 raeburn 2991: sub practice_problem_header {
2992: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2993: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2994: '</span>';
2995: }
2996:
1.479 raeburn 2997: sub randomizetry_problem_header {
2998: my ($problemstatus,$reqtries) = @_;
2999: my ($header,$text);
3000: if ($reqtries > 1) {
3001: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3002: if (($problemstatus eq 'no') ||
3003: ($problemstatus eq 'no_feedback_ever')) {
3004: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3005: } else {
3006: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3007: }
3008: } else {
3009: $header = &mt('New Problem Variation Each Try');
3010: if (($problemstatus eq 'no') ||
3011: ($problemstatus eq 'no_feedback_ever')) {
3012: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3013:
3014: } else {
3015: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3016: }
3017: }
3018: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3019: '<span class="LC_info">'.$text.'</span><hr />';
3020: }
3021:
3022: sub randomizetry_part_header {
3023: my ($problemstatus,$reqtries,$num) = @_;
3024: my ($header,$text);
3025: if ($reqtries eq 'none') {
3026: $header = &mt('No Question Variation');
3027: $text = &mt('For this question there will no new variation after a try.');
3028: } elsif ($reqtries > 1) {
3029: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3030: if (($problemstatus eq 'no') ||
3031: ($problemstatus eq 'no_feedback_ever')) {
3032: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3033: } else {
3034: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3035: }
3036: } else {
3037: $header = &mt('New Question Variation For Each Try');
3038: if (($problemstatus eq 'no') ||
3039: ($problemstatus eq 'no_feedback_ever')) {
3040: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3041: } else {
3042: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3043: }
3044: }
3045: my $output;
3046: if ($num > 1) {
3047: $output .= '<hr />';
3048: }
3049: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3050: '<span class="LC_info">'.$text.'</span><br /><br />';
3051: return $output;
3052: }
3053:
1.1 albertel 3054: 1;
3055: __END__
1.435 jms 3056:
3057: =pod
3058:
3059: =back
3060:
3061: =cut
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