Annotation of loncom/homework/structuretags.pm, revision 1.543
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.543 ! damieng 4: # $Id: structuretags.pm,v 1.542 2015/12/07 08:11:55 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 $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.531 raeburn 227: my ($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 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.531 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.532 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.520 raeburn 314:
315: var submithandled = 0;
1.521 raeburn 316: var keypresshandled = 0;
1.531 raeburn 317: var postsubmit = '$postsubmit';
1.520 raeburn 318:
1.531 raeburn 319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
1.521 raeburn 322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 325: keypresshandled = 1;
1.531 raeburn 326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 331: \$("#"+buttonId).trigger("click");
1.521 raeburn 332: }
333: }
334: }
335: });
336:
1.531 raeburn 337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 339: var buttonId = this.id;
1.531 raeburn 340: var timeout = $jstimeout;
1.520 raeburn 341: if (submithandled == 0) {
342: submithandled = 1;
1.531 raeburn 343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 344: "color": "black","padding": "2px"}) ;
1.531 raeburn 345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 346: if (buttonId != "all_submit") {
1.531 raeburn 347: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 348: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 349: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 350: }
1.520 raeburn 351: }
1.522 raeburn 352: } else {
1.531 raeburn 353: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 354: }
1.531 raeburn 355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 358: event.preventDefault();
1.531 raeburn 359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
1.520 raeburn 376: return true;
377: }
378: }
379: });
1.531 raeburn 380: }
1.520 raeburn 381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
393: form.problemmode.value = probmode;
394: form.submit();
395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
420: my %textarea_args = (
421: dragmath => 'math',
422: );
423: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 424: }
1.478 raeburn 425: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 426: my ($needs_upload,$partlist);
1.495 raeburn 427: my ($symb)= &Apache::lonnet::whichuser();
428: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 429: if ($is_task) {
1.495 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 431: } else {
432: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 433: unless ($env{'request.state'} eq 'construct') {
434: my $navmap = Apache::lonnavmaps::navmap->new();
435: if (ref($navmap)) {
436: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 437: my $is_page;
438: if (ref($mapres)) {
439: $is_page = $mapres->is_page();
440: }
441: unless ($is_page) {
1.495 raeburn 442: $needs_upload = 1;
443: }
1.528 raeburn 444: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
445: my $res = $navmap->getBySymb($symb);
446: if (ref($res)) {
447: $partlist = $res->parts();
448: }
449: }
1.495 raeburn 450: }
451: }
1.493 raeburn 452: } else {
453: unless ($env{'request.state'} eq 'construct') {
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (ref($navmap)) {
1.495 raeburn 456: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 457: my $is_page;
458: if (ref($mapres)) {
459: $is_page = $mapres->is_page();
460: }
1.528 raeburn 461: if ($is_page) {
462: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
463: my $res = $navmap->getBySymb($symb);
464: if (ref($res)) {
465: $partlist = $res->parts();
466: }
467: }
468: } else {
1.495 raeburn 469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
1.528 raeburn 471: $partlist = $res->parts();
1.495 raeburn 472: if (ref($partlist) eq 'ARRAY') {
473: foreach my $part (@{$partlist}) {
474: my @types = $res->responseType($part);
475: my @ids = $res->responseIds($part);
476: for (my $i=0; $i < scalar(@ids); $i++) {
477: if ($types[$i] eq 'essay') {
478: my $partid = $part.'_'.$ids[$i];
479: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
480: $needs_upload = 1;
481: last;
482: }
1.493 raeburn 483: }
484: }
485: }
1.495 raeburn 486: }
487: }
1.493 raeburn 488: }
489: }
490: }
491: }
1.495 raeburn 492: if ($needs_upload) {
1.538 musolffc 493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
494: .'<script type="text/javascript"
495: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 496: }
1.478 raeburn 497: }
1.425 raeburn 498:
1.344 albertel 499: my %body_args;
500: if (defined($found{'html'})) {
501: $body_args{'skip_phases'}{'head'}=1;
502: } else {
1.343 albertel 503:
1.345 albertel 504: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 505:
1.379 albertel 506: $extra_head .= &Apache::londefdef::generate_css_links();
507:
1.384 albertel 508: if ($env{'request.state'} eq 'construct') {
1.343 albertel 509: $extra_head.=&Apache::edit::js_change_detection().
510: "<script type=\"text/javascript\">\n".
511: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
512: &Apache::loncommon::browser_and_searcher_javascript().
513: "\n</script>\n";
1.525 raeburn 514: if ($target eq 'edit') {
515: $extra_head .= &Apache::edit::js_update_linknum();
516: }
1.343 albertel 517: }
1.159 albertel 518: }
1.343 albertel 519:
1.446 bisitz 520: my $pageheader = '';
1.344 albertel 521: if (defined($found{'body'})) {
522: $body_args{'skip_phases'}{'body'}=1;
523: } elsif (!defined($found{'body'})
524: && $env{'request.state'} eq 'construct') {
1.343 albertel 525: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 526: unless ($env{'form.inhibitmenu'} eq 'yes') {
527: # Breadcrumbs for Authoring Space
528: &Apache::lonhtmlcommon::clear_breadcrumbs();
529: &Apache::lonhtmlcommon::add_breadcrumb({
530: 'text' => 'Authoring Space',
531: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
532: });
533: # breadcrumbs (and tools) will be created
534: # in start_page->bodytag->innerregister
1.460 droeschl 535:
1.450 bisitz 536: # FIXME Where are we?
1.542 raeburn 537: # &Apache::lonhtmlcommon::add_breadcrumb({
538: # 'text' => 'Problem Editing', # 'Problem Testing'
539: # 'href' => '',
540: # });
541: $pageheader = &Apache::loncommon::head_subbox(
542: &Apache::loncommon::CSTR_pageheader());
543: }
544: }
1.272 albertel 545: } elsif (!defined($found{'body'})) {
1.343 albertel 546: my %add_entries;
1.159 albertel 547: my $background=&Apache::lonxml::get_param('background',$parstack,
548: $safeeval);
1.343 albertel 549: if ($background ne '' ) {
550: $add_entries{'background'} = $background;
551: }
1.344 albertel 552:
1.290 albertel 553: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
554: $safeeval);
1.446 bisitz 555: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 556:
1.446 bisitz 557: $body_args{'bgcolor'} = $bgcolor;
558: # $body_args{'no_title'} = 1;
559: $body_args{'force_register'} = 1;
560: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 561: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 562: $body_args{'only_body'} = 1;
1.518 raeburn 563: } elsif ($target eq 'web') {
564: $body_args{'print_suppress'} = 1;
1.446 bisitz 565: }
1.344 albertel 566: }
1.365 albertel 567: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 568: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
569: \%body_args);
1.446 bisitz 570: $page_start .= $pageheader;
1.462 raeburn 571: if (!defined($found{'body'})
572: && $env{'request.state'} ne 'construct'
573: && ($target eq 'web' || $target eq 'webgrade')) {
574:
575: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
576: if ($symb eq '' && !$publicuser) {
577: $page_start .= '<p class="LC_info">'
578: .&mt('Browsing resource, all submissions are temporary.')
579: .'</p>';
1.457 bisitz 580: }
1.344 albertel 581: }
582:
1.409 albertel 583: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 584: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 585: }
586: my $form_tag_start;
587: if (!defined($found{'form'})) {
1.337 albertel 588: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 589: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 590: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 591: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 592: $form_tag_start.=$uri.'" ';
593: if ($target eq 'edit') {
594: $form_tag_start.=&Apache::edit::form_change_detection();
595: }
1.493 raeburn 596: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
597: my ($path,$multiresp) =
598: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 599: if (($is_task) || ($needs_upload)) {
600: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 601: }
1.368 albertel 602: $form_tag_start.='>'."\n";
1.355 albertel 603:
604: if ($symb =~ /\S/) {
605: $symb=
606: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
607: $form_tag_start.=
1.368 albertel 608: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 609: }
1.159 albertel 610: }
1.528 raeburn 611: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 612: }
613:
1.141 matthew 614: #use Time::HiRes();
1.105 albertel 615: sub get_resource_name {
1.159 albertel 616: my ($parstack,$safeeval)=@_;
1.388 foxr 617: my $name;
1.204 albertel 618: if (defined($Apache::lonhomework::name)) {
1.388 foxr 619: $name = $Apache::lonhomework::name;
620: } else {
621: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 622: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 623: if ($name eq '') {
624: $name=&Apache::lonnet::EXT('resource.title');
625: if ($name eq 'con_lost') { $name = ''; }
626: }
627: if ($name!~/\S+/) {
628: $name=$env{'request.uri'};
629: $name=~s-.*/([^/]+)$-$1-;
630: }
631: # The name has had html tags escaped:
632:
633: $name=~s/</</gs;
634: $name=~s/>/>/gs;
635:
636: $Apache::lonhomework::name=$name;
1.204 albertel 637: }
1.159 albertel 638: return $name;
1.105 albertel 639: }
640:
641: sub setup_rndseed {
1.528 raeburn 642: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 643: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 644: my ($questiontype,$set_safespace,$rndseed);
645: if ($target eq 'analyze') {
646: $questiontype = $env{'form.grade_questiontype'};
647: }
648: unless (defined($questiontype)) {
649: $questiontype = $Apache::lonhomework::type;
650: }
1.333 albertel 651: if ($env{'request.state'} eq "construct"
652: || $symb eq ''
653: || $Apache::lonhomework::type eq 'practice'
654: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 655: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 656: ['rndseed']);
1.284 albertel 657: $rndseed=$env{'form.rndseed'};
1.159 albertel 658: if (!$rndseed) {
1.162 albertel 659: $rndseed=$Apache::lonhomework::history{'rndseed'};
660: if (!$rndseed) {
661: $rndseed=time;
662: }
1.284 albertel 663: $env{'form.rndseed'}=$rndseed;
1.162 albertel 664: }
1.479 raeburn 665: if (($env{'request.state'} eq "construct") &&
666: ($Apache::lonhomework::type eq 'randomizetry')) {
667: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
668: if ($tries) {
669: $rndseed += $tries;
670: }
1.480 raeburn 671: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 672: }
1.374 albertel 673: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
674: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 675: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 676: srand(time);
677: $rndseed=int(rand(2100000000));
1.284 albertel 678: $env{'form.rndseed'}=$rndseed;
679: delete($env{'form.resetdata'});
680: delete($env{'form.newrandomization'});
1.159 albertel 681: }
1.488 www 682: $rndseed=~s/\,/\:/g;
683: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 684: if (defined($rndseed)) {
685: my ($c1,$c2)=split(/\:/,$rndseed);
686: unless ($c2) { $c2=0; }
687: unless (($c1==int($c1)) && ($c2==int($c2))) {
688: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
689: }
1.187 albertel 690: }
1.247 albertel 691: if ($Apache::lonhomework::history{'resource.CODE'}) {
692: $rndseed=&Apache::lonnet::rndseed();
693: }
1.479 raeburn 694: $set_safespace = 1;
695: } elsif ($questiontype eq 'randomizetry') {
696: if ($target eq 'analyze') {
697: if (defined($env{'form.grade_rndseed'})) {
698: $rndseed = $env{'form.grade_rndseed'};
699: }
700: }
701: unless (($target eq 'analyze') && (defined($rndseed))) {
702: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 703: my $partfortries = $Apache::inputtags::part;
704: if (ref($probpartlist) eq 'ARRAY') {
705: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
706: $partfortries = $probpartlist->[0];
707: }
708: }
709: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 710: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
711: $curr_try ++;
712: }
713: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
714: $rndseed = $1;
715: }
716: if ($curr_try) {
1.528 raeburn 717: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 718: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
719: my $inc = int(($curr_try-1)/$reqtries);
720: $rndseed += $inc;
721: } else {
722: $rndseed += $curr_try;
723: }
724: }
725: }
726: $set_safespace = 1;
1.528 raeburn 727: if ($target eq 'grade') {
728: $Apache::lonhomework::rawrndseed = $rndseed;
729: }
1.479 raeburn 730: }
731: if ($set_safespace) {
732: if ($safeeval) {
733: &Apache::lonxml::debug("Setting rndseed to $rndseed");
734: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
735: }
736: }
737: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
738: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 739: }
740: return $rndseed;
1.105 albertel 741: }
742:
1.268 albertel 743: sub remember_problem_state {
744: return '
1.284 albertel 745: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
746: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
747: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 748: }
749:
1.487 www 750: sub problem_edit_action_button {
751: my ($name,$action,$accesskey,$text,$flag)=@_;
752: my $actionscript="setmode(this.form,'$action')";
753: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
754: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
755: }
756:
1.423 www 757: sub problem_edit_buttons {
1.487 www 758: my ($mode)=@_;
1.535 droeschl 759: # Buttons that save
760: my $result = '<div style="float:right">';
761: if ($mode eq 'editxml') {
762: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
763: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
764: } else {
765: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
766: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
767: }
768: $result.="\n</div>\n";
1.487 www 769: # Buttons that do not save
1.535 droeschl 770: $result .= '<div>'.
1.487 www 771: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
772: if ($mode eq 'editxml') {
773: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
774: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
775: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
776: } else {
777: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
778: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
779: }
780: $result.="\n</div>";
781: return $result;
1.423 www 782: }
783:
784: sub problem_edit_header {
1.527 golterma 785: my ($mode)=@_;
786: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 787: &remember_problem_state('edit').'
1.527 golterma 788: <div class="LC_edit_problem_header">
789: <div class="LC_edit_problem_header_title">
790: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
791: </div><div class="LC_edit_actionbar" id="actionbar">'.
792: '<input type="hidden" name="problemmode" value="saveedit" />'.
793: &problem_edit_buttons();
794:
1.535 droeschl 795: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 796: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
797: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
798:
799: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
800: <script type="text/javascript">
801: // unless internet explorer
802: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
803: $(document).ready(
804: function() {
805: $(\'.LC_edit_actionbar\').scrollToFixed(
806: {
807: fixed: function(){
1.535 droeschl 808: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
809: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 810: }
811: }
812: );
813: }
814: );
815: }
816: </script>
817: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
818: return $return;
1.105 albertel 819: }
820:
821: sub problem_edit_footer {
1.527 golterma 822: my $resource = $env{'request.ambiguous'};
1.412 albertel 823: return '</td></tr></table><br />
824: <div class="LC_edit_problem_footer">
1.453 bisitz 825: <hr />'.
1.423 www 826: &problem_edit_buttons().'
1.459 bisitz 827: <hr style="clear:both;" />
1.527 golterma 828: <script type="text/javascript">
829: restoreState("'.$resource.'");
830: restoreScrollPosition("'.$resource.'");
831: </script>
1.412 albertel 832: </div>
833: '.
1.342 albertel 834: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 835: }
836:
1.235 albertel 837: sub option {
838: my ($value,$name) = @_;
839: my $result ="<option value='".$value."' ";
1.284 albertel 840: if ($env{'form.'.$name} eq $value) {
1.235 albertel 841: $result.=" selected='on' ";
842: }
843: $result.='>';
844: return $result;
845: }
846:
1.105 albertel 847: sub problem_web_to_edit_header {
1.159 albertel 848: my ($rndseed)=@_;
1.406 albertel 849: my $result .= '<div class="LC_edit_problem_header">';
850:
851: if (!$Apache::lonhomework::parsing_a_task) {
852: $result .=
853: '<div class="LC_edit_problem_header_title">'.
854: &mt('Problem Testing').
855: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
856: '</div>';
857: } else {
858: $result .=
859: '<div class="LC_edit_problem_header_title">'.
860: &mt('Task Testing').
861: '</div>';
862: }
863:
1.315 albertel 864: my $show_all_foils_text =
865: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 866: &mt('Show All Instances')
867: : &mt('Show All Foils');
1.315 albertel 868:
1.452 bisitz 869: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
870: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 871: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 872: $show_all.= ' /> '.$show_all_foils_text
873: .'</label></span>';
1.406 albertel 874:
875:
1.384 albertel 876:
1.406 albertel 877: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 878: if (!$Apache::lonhomework::parsing_a_task) {
879: $result.="
1.406 albertel 880: <div class='LC_edit_problem_header_row1'>
881: <span class=\"LC_nobreak\">
1.405 albertel 882: ".&mt("Problem Status:")."
1.235 albertel 883: <select name='problemstate'>
1.270 albertel 884: <option value=''></option>
1.235 albertel 885: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
886: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
887: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
888: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
889: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
890: </select>
1.406 albertel 891: </span>
892: <span class=\"LC_nobreak\">
1.405 albertel 893: ".&mt("Problem Type:")."
1.235 albertel 894: <select name='problemtype'>
1.270 albertel 895: <option value=''></option>
1.509 bisitz 896: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 897: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 898: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 899: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
900: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
901: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 902: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 903: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 904: </select>
1.406 albertel 905: </span>
906: $show_all
907: </div>
908: <div class='LC_edit_problem_header_row2'>
909: <span class=\"LC_nobreak\">
1.405 albertel 910: ".&mt("Feedback Mode:")."
1.235 albertel 911: <select name='problemstatus'>
912: <option value=''></option>
1.242 albertel 913: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 914: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 915: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 916: </select>
1.406 albertel 917: </span>
918: ";
919:
1.376 albertel 920: } elsif ($Apache::lonhomework::parsing_a_task) {
921: $result.="
1.406 albertel 922: <div class='LC_edit_problem_header_row1'>
923: <span class=\"LC_nobreak\">
1.405 albertel 924: ".&mt("Problem Status:")."
1.376 albertel 925: <select name='problemstate'>
926: <option value=''></option>
927: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
928: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
929: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
930: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
931: </select>
1.406 albertel 932: </span>
933: $show_all
934: ";
935: }
936: $result.='
937: <span class="LC_nobreak">
938: '.&mt('Apply style file: ').'
939: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
940: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
941: </span>
1.422 www 942: </div>
943: <div class="LC_edit_problem_header_row1">'.
944: &Apache::lonxml::renderingoptions().'
1.406 albertel 945: </div>
946: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
947: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
948: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
949: </div>
1.453 bisitz 950: <hr />
1.406 albertel 951: <div class="LC_edit_problem_header_randomize_row">
952: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
953: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 954: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 955: $rndseed.'"
956: onchange="javascript:document.lonhomework.changerandseed.click()" />';
957:
958: if (!$Apache::lonhomework::parsing_a_task) {
959: my $numtoanalyze=$env{'form.numtoanalyze'};
960: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 961: $result .= '<span class="LC_nobreak">'.
962: &mt('[_1] for [_2] versions.',
1.416 raeburn 963: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 964: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
965: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 966: $numtoanalyze.'" size="5" />').
967: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
968: '</span>';
969:
1.313 albertel 970: }
1.406 albertel 971:
972: $result.='
973: </div>
1.453 bisitz 974: <hr />
1.447 bisitz 975: <div>';
1.416 raeburn 976: $result.='<input type="hidden" name="problemmode" value="view" />';
977: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
978: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
979: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
980: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 981: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
982: my $uri = $env{'request.uri'};
1.543 ! damieng 983: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 984: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
985: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
986: }
1.408 albertel 987: $result.='
988: </div>
1.453 bisitz 989: <hr />
1.409 albertel 990: '.&Apache::lonxml::message_location().'
1.406 albertel 991: </div>';
1.159 albertel 992: return $result;
1.48 albertel 993: }
994:
1.65 albertel 995: sub initialize_storage {
1.357 albertel 996: my ($given_symb) = @_;
1.353 albertel 997: undef(%Apache::lonhomework::results);
998: undef(%Apache::lonhomework::history);
1.357 albertel 999: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1000: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1001:
1002: # anonymous users (CODEd exams) have no data
1003: if ($name eq 'anonymous'
1004: && !defined($domain)) {
1005: return;
1006: }
1007:
1.333 albertel 1008: if ($env{'request.state'} eq 'construct'
1009: || $symb eq ''
1010: || $Apache::lonhomework::type eq 'practice') {
1011:
1012: my $namespace = $symb || $env{'request.uri'};
1013: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1014: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1015: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1016: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1017: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1018: &Apache::lonxml::debug("Attempt reset");
1019: }
1.159 albertel 1020: %Apache::lonhomework::history=
1.333 albertel 1021: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1022: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1023: &Apache::lonxml::debug("Return message of $temp");
1024: } else {
1025: %Apache::lonhomework::history=
1026: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1027: }
1.353 albertel 1028:
1.159 albertel 1029: #ignore error conditions
1.526 raeburn 1030: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1031: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1032: }
1033:
1.435 jms 1034: =pod
1035:
1036: =item finalize_storage()
1037:
1.524 raeburn 1038: Stores away the result hash to a student's environment;
1.523 raeburn 1039: checks form.grade_ for specific values, otherwise stores
1040: to the running user's environment.
1.524 raeburn 1041:
1042: &check_correctness_changes() is called in two circumstances
1043: in which the results hash is to be stored permanently, for
1044: grading triggered by a student's submission, where feedback on
1045: correctness is to be provided to the student.
1046:
1047: 1. Immediately prior to storing the results hash
1048:
1049: To handle the case where a student's submission (and award) were
1050: stored after history was retrieved in &initialize_storage(), e.g.,
1051: if a student submitted answers in quick succession (e.g., from
1052: multiple tabs). &Apache::inputtags::hidealldata() is called for
1053: any parts with out-of-order storage (i.e., correct then incorrect,
1054: where awarded >= 1 when correct).
1055:
1056: 2. Immediately after storing the results hash
1057:
1058: To handle the case where lond on the student's homeserver returns
1059: delay:N -- where N is the number of transactions between the last
1060: retrieved in &initialize_storage() and the last stored immediately
1061: before permanent storage of the current transaction via
1062: lond::store_handler(). &Apache::grades::makehidden() is called
1063: for any parts with out-of-order storage (i.e., correct then incorrect,
1064: where awarded >= 1 when correct).
1065:
1066: Will call &store_aggregates() to increment totals for attempts,
1067: students, and corrects, if running user has student role.
1068:
1.435 jms 1069: =cut
1070:
1071:
1.65 albertel 1072: sub finalize_storage {
1.357 albertel 1073: my ($given_symb) = @_;
1.159 albertel 1074: my $result;
1.289 albertel 1075: if (%Apache::lonhomework::results) {
1.323 albertel 1076: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1077: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1078: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1079: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1080: if ($env{'request.state'} eq 'construct'
1081: || $symb eq ''
1082: || $Apache::lonhomework::type eq 'practice') {
1083: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1084: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1085: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1086: $namespace,'',$domain,$name);
1.159 albertel 1087: &Apache::lonxml::debug('Construct Store return message:'.$result);
1088: } else {
1.524 raeburn 1089: my ($laststore,$checkedparts,@parts,%postcorrect);
1090: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1091: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1092: (!defined($env{'form.grade_courseid'}))) {
1093: if ($Apache::lonhomework::history{'version'}) {
1094: $laststore = $Apache::lonhomework::history{'version'}.'='.
1095: $Apache::lonhomework::history{'timestamp'};
1096: } else {
1097: $laststore = '0=0';
1098: }
1099: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1100: if ($record{'version'}) {
1101: my ($newversion,$oldversion,$oldtimestamp);
1102: if ($Apache::lonhomework::history{'version'}) {
1103: $oldversion = $Apache::lonhomework::history{'version'};
1104: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1105: } else {
1106: $oldversion = 0;
1107: $oldtimestamp = 0;
1108: }
1109: if ($record{'version'} > $oldversion) {
1110: if ($record{'timestamp'} >= $oldtimestamp) {
1111: $laststore = $record{'version'}.'='.$record{'timestamp'};
1112: $newversion = $record{'version'} + 1;
1113: $checkedparts = 1;
1114: foreach my $key (keys(%Apache::lonhomework::results)) {
1115: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1116: my $part = $1;
1117: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1118: push(@parts,$part);
1119: }
1120: }
1121: }
1122: if (@parts) {
1123: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1124: \%record,\@parts,$newversion,
1125: $oldversion);
1126: if (@parts_to_hide) {
1127: foreach my $part (@parts_to_hide) {
1128: $postcorrect{$part} = 1;
1129: &Apache::inputtags::hidealldata($part);
1130: }
1131: }
1132: }
1133: }
1134: }
1135: }
1136: }
1.159 albertel 1137: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1138: $symb,$courseid,$domain,$name,$laststore);
1139: if ($result =~ /^delay\:(\d+)$/) {
1140: my $numtrans = $1;
1141: my ($oldversion) = split(/=/,$laststore);
1142: if ($numtrans) {
1143: my $newversion = $oldversion + 1 + $numtrans;
1144: my @possparts;
1145: if ($checkedparts) {
1146: foreach my $part (@parts) {
1147: unless ($postcorrect{$part}) {
1148: push(@possparts,$part);
1149: }
1150: }
1151: } else {
1152: foreach my $key (keys(%Apache::lonhomework::results)) {
1153: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1154: my $part = $1;
1155: unless ($postcorrect{$part}) {
1156: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1157: push(@possparts,$part);
1158: }
1159: }
1160: }
1161: }
1162: }
1163: if (@possparts) {
1164: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1165: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1166: \%newrecord,\@possparts,$newversion,
1167: $oldversion);
1168: if (@parts_to_hide) {
1169: my $partslist = join(',',@parts_to_hide);
1170: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1171: }
1172: }
1173: }
1174: }
1.159 albertel 1175: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1176: &store_aggregates($symb,$courseid);
1.159 albertel 1177: }
1.323 albertel 1178: } else {
1179: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1180: }
1.159 albertel 1181: return $result;
1.65 albertel 1182: }
1183:
1.435 jms 1184: =pod
1185:
1.524 raeburn 1186: =item check_correctness_changes()
1187:
1188: For all parts for which current results contain a solved status
1189: of "incorrect_attempted", check if there was a transaction in which
1190: solved was set to "correct_by_student" in the time since the last
1191: transaction (retrieved when &initialize_storage() was called i.e.,
1192: when &start_problem() was called), unless:
1193: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1194: (b) problemstatus is set to no or no_feedback_ever
1195: If such a transaction exists, and did not occur after "reset status"
1196: by a user with grading privileges, then the current transaction is an
1197: example of an out-of-order transaction (i.e., incorrect occurring after
1198: correct). Accordingly, the current transaction should be hidden.
1199:
1200: =cut
1201:
1202:
1203: sub check_correctness_changes {
1204: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1205: my @parts_to_hide;
1206: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1207: return @parts_to_hide;
1208: }
1209: if (@{$parts}) {
1210: my $usec;
1211: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1212: ($env{'request.course.id'} eq $courseid)) {
1213: $usec = $env{'request.course.sec'};
1214: } else {
1215: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1216: }
1217: foreach my $id (@{$parts}) {
1218: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1219: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1220: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1221: my $reset;
1222: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1223: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1224: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1225: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1226: $reset = 1;
1227: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1228: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1229: unless ($reset) {
1230: push(@parts_to_hide,$id);
1231: last;
1232: }
1233: }
1234: }
1235: }
1236: }
1237: return @parts_to_hide;
1238: }
1239:
1240: =pod
1241:
1.435 jms 1242: item store_aggregates()
1243:
1244: Sends hash of values to be incremented in nohist_resourcetracker.db
1245: for the course. Increments total number of attempts, unique students
1246: and corrects for each part for an instance of a problem, as appropriate.
1247:
1248: =cut
1249:
1.285 raeburn 1250: sub store_aggregates {
1251: my ($symb,$courseid) = @_;
1.479 raeburn 1252: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1253: my @parts;
1.288 albertel 1254: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1255: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1256: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1257: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1258: push(@parts, $1);
1.285 raeburn 1259: }
1260: }
1.286 albertel 1261: foreach my $part (@parts) {
1.470 raeburn 1262: if ($env{'request.role'} =~/^st/) {
1263: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1264: eq 'APPROX_ANS' ||
1265: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1266: eq 'EXACT_ANS') {
1267: $aggregate{$symb."\0".$part."\0correct"} = 1;
1268: }
1269: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1270: $aggregate{$symb."\0".$part."\0users"} = 1;
1271: } else {
1272: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1273: if ($last_reset) {
1274: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1275: $aggregate{$symb."\0".$part."\0users"} = 1;
1276: }
1277: }
1278: }
1279: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1280: }
1.470 raeburn 1281: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1282: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1283: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1284: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1285: $randtrycounter{$symb."\0".$part} = 1;
1286: } else {
1287: $anoncounter{$symb."\0".$part} = 1;
1288: }
1.537 raeburn 1289: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.':'};
1290: if ($needsrelease) {
1.470 raeburn 1291: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1292: if ($curr_required eq '') {
1.471 raeburn 1293: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1294: } else {
1295: my ($currmajor,$currminor) = split(/\./,$curr_required);
1296: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1297: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1298: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1299: }
1.292 raeburn 1300: }
1301: }
1.285 raeburn 1302: }
1303: }
1.526 raeburn 1304: if (keys(%aggregate) > 0) {
1.289 albertel 1305: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1306: $cdomain,$cname);
1307: }
1.472 raeburn 1308: if (keys(%anoncounter) > 0) {
1.481 raeburn 1309: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1310: $cdomain,$cname);
1.472 raeburn 1311: }
1.479 raeburn 1312: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1313: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1314: $cdomain,$cname);
1.479 raeburn 1315: }
1.292 raeburn 1316: }
1.289 albertel 1317:
1.65 albertel 1318: sub checkout_msg {
1.211 albertel 1319: my %lt=&Apache::lonlocal::texthash(
1320: 'resource'=>'The resource needs to be checked out',
1321: '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.',
1322: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1323: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1324: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1325: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1326: return (<<ENDCHECKOUT);
1.211 albertel 1327: <h2>$lt{'resource'}</h2>
1328: <p>$lt{'id_expln'}</p>
1.449 bisitz 1329: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1330: <form name="checkout" method="post" action="$uri">
1.91 albertel 1331: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1332: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1333: </form>
1334: ENDCHECKOUT
1335: }
1336:
1.252 albertel 1337: sub firstaccess_msg {
1.253 albertel 1338: my ($time,$symb)=@_;
1.414 albertel 1339: my $result;
1340: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1341: if ($interval[1] eq 'map') {
1342: my ($map)=&Apache::lonnet::decode_symb($symb);
1343: my $foldertitle=&Apache::lonnet::gettitle($map);
1344:
1345: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1346: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1347: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1348: ,$foldertitle,$time)."</p>";
1.414 albertel 1349: } elsif ($interval[1] eq 'course') {
1350: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1351: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1352: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1353: ,$course,$time)."</p>";
1.414 albertel 1354: } else {
1355: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1356: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1357: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1358: ,$title,$time)."</p>";
1.414 albertel 1359: }
1.352 albertel 1360: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1361: my $buttontext = &mt('Show Resource');
1362: my $timertext = &mt('Start Timer?');
1.414 albertel 1363: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1364: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1365: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1366: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1367: </form>
1368: ENDCHECKOUT
1.414 albertel 1369: return $result;
1.252 albertel 1370: }
1371:
1.204 albertel 1372: sub init_problem_globals {
1373: my ($type)=@_;
1374: #initialize globals
1.308 foxr 1375: # For problems, we start out in part 0 (outside a <part> tag).
1376: # and part 0 is used to describe the main body of the <problem>
1377: #
1.204 albertel 1378: if ($type eq 'problem') {
1379: $Apache::inputtags::part='0';
1380: @Apache::inputtags::partlist=('0');
1.405 albertel 1381: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1382: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1383:
1.266 albertel 1384: } elsif ($type eq 'library') {
1.204 albertel 1385: $Apache::inputtags::part='';
1386: @Apache::inputtags::partlist=();
1.405 albertel 1387: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1388: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1389:
1.304 albertel 1390: } elsif ($type eq 'Task') {
1391: $Apache::inputtags::part='0';
1392: @Apache::inputtags::partlist=('0');
1.405 albertel 1393: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1394: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1395: }
1.477 www 1396: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1397: @Apache::inputtags::responselist = ();
1398: @Apache::inputtags::importlist = ();
1399: @Apache::inputtags::previous=();
1400: @Apache::inputtags::previous_version=();
1.536 raeburn 1401: $Apache::inputtags::leniency='';
1.204 albertel 1402: $Apache::structuretags::printanswer='No';
1403: @Apache::structuretags::whileconds=();
1404: @Apache::structuretags::whilebody=();
1405: @Apache::structuretags::whileline=();
1406: $Apache::lonhomework::scantronmode=0;
1407: undef($Apache::lonhomework::name);
1.358 albertel 1408: undef($Apache::lonhomework::default_type);
1409: undef($Apache::lonhomework::type);
1.204 albertel 1410: }
1411:
1412: sub reset_problem_globals {
1413: my ($type)=@_;
1414: undef(%Apache::lonhomework::history);
1415: undef(%Apache::lonhomework::results);
1416: undef($Apache::inputtags::part);
1.536 raeburn 1417: undef($Apache::inputtags::leniency);
1.498 raeburn 1418: if ($type eq 'Task') {
1419: undef($Apache::inputtags::slot_name);
1.528 raeburn 1420: } elsif ($type eq 'problem') {
1421: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1422: }
1.208 albertel 1423: #don't undef this, lonhomework.pm takes care of this, we use this to
1424: #detect if we try to do 2 problems in one file
1425: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1426: undef($Apache::lonhomework::name);
1.358 albertel 1427: undef($Apache::lonhomework::default_type);
1428: undef($Apache::lonhomework::type);
1429: undef($Apache::lonhomework::scantronmode);
1430: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1431: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1432: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1433: }
1434:
1.241 albertel 1435: sub set_problem_state {
1.240 albertel 1436: my ($part)=@_;
1.284 albertel 1437: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1438: $Apache::lonhomework::history{"resource.$part.solved"}=
1439: 'correct_by_student';
1440: }
1441: }
1442:
1.241 albertel 1443: sub get_problem_status {
1444: my ($part)=@_;
1.267 albertel 1445: my $problem_status;
1.284 albertel 1446: if ($env{'request.state'} eq 'construct' &&
1447: defined($env{'form.problemstatus'})) {
1448: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1449: } else {
1450: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1451: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1452: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1453: }
1454: return $problem_status;
1455: }
1456:
1.9 albertel 1457: sub start_problem {
1.326 albertel 1458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1459:
1.311 foxr 1460: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1461: if (!$Apache::lonxml::metamode) {
1462: &Apache::lonxml::startredirection();
1463: }
1.311 foxr 1464:
1.308 foxr 1465: # Problems don't nest and we don't allow more than one <problem> in
1466: # a .problem file.
1467: #
1.184 albertel 1468: if ( $Apache::inputtags::part ne '' ||
1469: $Apache::lonhomework::parsing_a_problem) {
1470: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1471: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1472: return '';
1473: }
1.184 albertel 1474:
1475: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1476: &init_problem_globals('problem');
1.166 albertel 1477:
1.284 albertel 1478: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1479: $Apache::lonhomework::scantronmode=1;
1480: }
1.161 albertel 1481:
1.159 albertel 1482: if ($target ne 'analyze') {
1.415 raeburn 1483: my $type = &Apache::lonnet::EXT('resource.0.type');
1484: $Apache::lonhomework::type=$type;
1.284 albertel 1485: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1486: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1487: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1488: }
1.332 albertel 1489: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1490: }
1.164 albertel 1491: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1492: my $uri=$env{'request.uri'};
1.159 albertel 1493: if ($uri=~/\.(\w+)$/) {
1494: $Apache::lonhomework::type=$1;
1495: &Apache::lonxml::debug("Using type of $1");
1496: } else {
1497: $Apache::lonhomework::type='problem';
1498: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1499: }
1.87 albertel 1500: }
1.301 albertel 1501: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1502:
1.363 albertel 1503: &initialize_storage();
1.389 albertel 1504: if ($target ne 'analyze'
1505: && $env{'request.state'} eq 'construct') {
1506: &set_problem_state('0');
1507: }
1508:
1.366 albertel 1509: if ($target eq 'web') {
1510: &Apache::lonxml::debug(" grading history ");
1511: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1512: }
1.363 albertel 1513:
1.159 albertel 1514: #added vars to the scripting enviroment
1.213 albertel 1515: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1516: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1517: &Apache::run::run($expression,$safeeval);
1.159 albertel 1518: my $status;
1519: my $accessmsg;
1.508 raeburn 1520: my $resource_due;
1.540 raeburn 1521: my $ipused;
1.159 albertel 1522:
1.343 albertel 1523: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1524: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1525:
1526: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1527: $target eq 'tex') {
1528: if ($env{'form.markaccess'}) {
1529: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1530: my ($timelimit) = split(/_/,$interval[0]);
1531: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1532: }
1533:
1.540 raeburn 1534: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1.506 raeburn 1535: &Apache::lonhomework::check_slot_access('0','problem');
1536: push (@Apache::inputtags::status,$status);
1537: }
1538:
1.354 albertel 1539: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1540: || $target eq 'edit') {
1.528 raeburn 1541: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1542: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1543: $name);
1.528 raeburn 1544: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1545: my ($symb)= &Apache::lonnet::whichuser();
1546: my $navmap = Apache::lonnavmaps::navmap->new();
1547: if (ref($navmap)) {
1548: my $res = $navmap->getBySymb($symb);
1549: if (ref($res)) {
1550: $probpartlist = $res->parts();
1551: }
1552: }
1.350 albertel 1553: }
1554:
1.284 albertel 1555: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1556:
1.479 raeburn 1557: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1558: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1559: $target eq 'tex') {
1.479 raeburn 1560:
1.159 albertel 1561: #handle rand seed in construction space
1.528 raeburn 1562: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1563: if (($target eq 'grade') && &Apache::response::submitted()) {
1564: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1565: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1566: } else {
1567: my @parts;
1568: if (ref($probpartlist) eq 'ARRAY') {
1569: @parts = @{$probpartlist};
1570: }
1571: unless (@parts) {
1.529 raeburn 1572: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1573: }
1574: }
1575: }
1.367 albertel 1576: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1577:
1.333 albertel 1578: if ($env{'request.state'} ne "construct" &&
1579: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1580: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1581: $rndseed.'" />'.
1582: '<input type="submit" name="resetdata"
1583: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1584: if (exists($env{'form.username'})) {
1585: $form_tag_start.=
1.164 albertel 1586: '<input type="hidden" name="username"
1.284 albertel 1587: value="'.$env{'form.username'}.'" />';
1.334 albertel 1588: }
1.462 raeburn 1589: if ($env{'request.role.adv'}) {
1590: $form_tag_start.= ' <label class="LC_nobreak">'
1591: .'<input type="checkbox" name="showallfoils"';
1592: if (defined($env{'form.showallfoils'})) {
1593: $form_tag_start.=' checked="checked"';
1594: }
1595: $form_tag_start.= ' /> '
1596: .&mt('Show All Foils')
1597: .'</label>';
1598: }
1.417 www 1599: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1600: $form_tag_start.=&practice_problem_header();
1.417 www 1601: }
1.462 raeburn 1602: $form_tag_start.='<hr />';
1.479 raeburn 1603: } elsif (($env{'request.state'} ne "construct") &&
1604: ($Apache::lonhomework::type eq 'randomizetry') &&
1605: ($status eq 'CAN_ANSWER')) {
1606: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1607: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1608: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1609: }
1.324 albertel 1610:
1.159 albertel 1611: my $expression='$external::datestatus="'.$status.'";';
1612: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1613: &Apache::run::run($expression,$safeeval);
1614: &Apache::lonxml::debug("Got $status");
1.324 albertel 1615:
1.159 albertel 1616: if (( $status eq 'CLOSED' ) ||
1617: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1618: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1619: ( $status eq 'BANNED') ||
1.216 albertel 1620: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1621: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1622: ( $status eq 'NOTRESERVABLE') ||
1623: ( $status eq 'RESERVABLE') ||
1624: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1625: ( $status eq 'INVALID_ACCESS') ||
1626: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1627: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1628: $style);
1.159 albertel 1629: if ( $target eq "web" ) {
1.343 albertel 1630: my $msg;
1.159 albertel 1631: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1632: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1633: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1634: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1635: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1636: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1637: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1638: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1639: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1640: }
1.216 albertel 1641: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1642: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1643: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1644: $msg.=&checkout_msg();
1.252 albertel 1645: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1646: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1647: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1648: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1649: } elsif ($status eq 'RESERVABLE') {
1650: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1651: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1652: '<br />'.
1653: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1654: } elsif ($status eq 'RESERVABLE_LATER') {
1655: $msg.=&mt('Window to make a reservation will open [_1].',
1656: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1657: } elsif ($status eq 'NOTRESERVABLE') {
1658: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1659: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1660: if ($ipused) {
1661: $msg.=&mt('You must use the same computer ([_1]) you used when you first accessed this resource using your time/place-based reservation.',"IP: $ipused");
1662: } else {
1663: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1664: &mt('Somebody else has already used this particular computer for that purpose.');
1665: }
1666: }
1.159 albertel 1667: $result.=$msg.'<br />';
1668: } elsif ($target eq 'tex') {
1.332 albertel 1669: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1670: : '\begin{minipage}{\textwidth}';
1.443 foxr 1671: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1672: $startminipage.'\vskip 0 mm';
1.159 albertel 1673: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1674: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1675: } else {
1.211 albertel 1676: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1677: }
1678: }
1.324 albertel 1679: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1680: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1681: $style);
1.324 albertel 1682: if ($target eq 'web') {
1.375 albertel 1683: $result .=
1684: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1685: } elsif ($target eq 'grade') {
1.540 raeburn 1686: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1687: 'problem');
1688: if ($checkinresult = /^error:/) {
1689: $result .= 'error';
1690: }
1.324 albertel 1691: }
1.159 albertel 1692: } elsif ($target eq 'web') {
1.508 raeburn 1693: if ($status eq 'CAN_ANSWER') {
1694: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1695: if ($slot_name ne '') {
1696: my $checked_in =
1697: $Apache::lonhomework::history{'resource.0.checkedin'};
1698: if ($checked_in eq '') {
1699: # unproctored slot access, self checkin
1.540 raeburn 1700: my $needsiptied;
1701: if (ref($slot)) {
1702: $needsiptied = $slot->{'iptied'};
1703: }
1704: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1705: $slot_name,$needsiptied);
1706: if ($check =~ /^error: /) {
1707: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1708: } else {
1709: $checked_in =
1710: $Apache::lonhomework::results{"resource.0.checkedin"};
1711: }
1.508 raeburn 1712: }
1713: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1714: if ($slot->{'starttime'} < time()) {
1715: if (!$resource_due) {
1716: $resource_due = $slot->{'endtime'};
1717: } elsif ($slot->{'endtime'} < $resource_due) {
1718: $resource_due = $slot->{'endtime'};
1719: }
1720: }
1721: }
1722: }
1723: if ($resource_due) {
1724: my $time_left = $resource_due - time();
1725: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1726: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1727: }
1728: }
1729: }
1.368 albertel 1730: $result.="\n $form_tag_start \t".
1.227 albertel 1731: '<input type="hidden" name="submitted" value="yes" />';
1732: # create a page header and exit
1.284 albertel 1733: if ($env{'request.state'} eq "construct") {
1.542 raeburn 1734: unless ($env{'form.inhibitmenu'} eq 'yes') {
1735: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1736: }
1.428 raeburn 1737: if ($Apache::lonhomework::type eq 'practice') {
1738: $result.= '<input type="submit" name="resetdata" '.
1739: 'value="'.&mt('New Problem Variation').'" />'.
1740: &practice_problem_header().'<hr />';
1741: }
1.227 albertel 1742: }
1743: # if we are viewing someone else preserve that info
1.284 albertel 1744: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1745: foreach my $field ('symb','courseid','domain','username') {
1746: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1747: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1748: }
1.479 raeburn 1749: foreach my $field ('trial','questiontype') {
1750: if ($env{"form.grade_$field"} ne '') {
1751: $result .= '<input type="hidden" name="grade_'.$field.
1752: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1753: }
1754: }
1.159 albertel 1755: }
1.490 raeburn 1756: if ($env{'form.grade_imsexport'}) {
1757: $result = '';
1758: }
1.159 albertel 1759: } elsif ($target eq 'tex') {
1.319 foxr 1760: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1761: $result .= &select_metadata_hyphenation();
1762:
1.319 foxr 1763:
1.99 sakharuk 1764: }
1.159 albertel 1765: } elsif ($target eq 'edit') {
1.343 albertel 1766: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1767: $Apache::lonxml::warnings_error_header=
1768: &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 1769: my $temp=&Apache::edit::insertlist($target,$token);
1770: $result.=$temp;
1771: } elsif ($target eq 'modified') {
1772: $result=$token->[4];
1773: } else {
1774: # page_start returned a starting result, delete it if we don't need it
1775: $result = '';
1.99 sakharuk 1776: }
1.159 albertel 1777: return $result;
1.9 albertel 1778: }
1779:
1780: sub end_problem {
1.159 albertel 1781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1782: my $result;
1.310 foxr 1783:
1.321 albertel 1784: if (!$Apache::lonxml::metamode) {
1785: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1786: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1787: }
1.319 foxr 1788:
1789: if ($target eq 'tex') {
1.321 albertel 1790: # Figure out the front matter and replace the
1791: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1792: # this in end_problem because whether or not we display due
1793: # dates depends on whether due dates have already been
1794: # displayed in the problem parts.
1795:
1.319 foxr 1796: my $frontmatter = '';
1797: my $startminipage = '';
1798: if (not $env{'form.problem_split'}=~/yes/) {
1799: $startminipage = '\begin{minipage}{\textwidth}';
1800: }
1801: my $id = $Apache::inputtags::part;
1802: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1803: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1804: my @packages = split(/,/,$packages);
1.319 foxr 1805: my $allow_print_points = 0;
1806: foreach my $partial_key (@packages) {
1807: if ($partial_key=~m/^part_0$/) {
1808: $allow_print_points=1;
1809: }
1810: }
1811: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1812: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1813: if (lc($env{'course.'.$env{'request.course.id'}.
1814: '.disableexampointprint'}) eq 'yes') {
1815: $allow_print_points=0;
1816: }
1817: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1818: 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 1819: &clear_required_languages();
1.319 foxr 1820: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1821: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1822:
1823: # Figure out what the due date is and if we need to print
1824: # it in the problem header. We have been logging the
1825: # last due date written to file.
1826:
1827: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1828: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1829: my $duedate_text = &mt('Due date: [_1]'
1830: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1831: my $temp_file;
1832: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1833:
1834: # Figure out what the last printed due date is or set it
1835: # to the epoch if no duedates have been printed.
1836:
1837: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1838: if (-e $filename) {
1839: $temp_file = Apache::File->new($filename);
1840: my @due_file = <$temp_file>;
1841: $due_file_content = $due_file[$#due_file];
1842: chomp $due_file_content;
1843: }
1844:
1845: # We display the due date iff it is not the same as the last
1846: # duedate in problem header ($due_file_content), and
1847: # none of our parts displayed a duedate.
1848: #
1849: my $parts_with_displayduedate;
1850: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1851: $parts_with_displayduedate =
1852: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1853: } else {
1854: $parts_with_displayduedate = 0;
1855: }
1856: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1857: $temp_file = Apache::File->new('>'.$filename);
1858: print $temp_file "$duetime\n";
1859: if (not $env{'request.symb'} =~ m/\.page_/) {
1860: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1861: $frontmatter .= $begin_doc.
1.448 bisitz 1862: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1863: } else {
1864: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1865: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1866: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1867: }
1.319 foxr 1868: }
1869: } else {
1.448 bisitz 1870: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1871: }
1872: } else {
1873: if (not $env{'request.symb'} =~ m/\.page_/) {
1874: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1875: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1876: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1877: }
1.319 foxr 1878: } else {
1.381 albertel 1879: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1880: }
1881: }
1882: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1883: }
1884:
1.159 albertel 1885: my $status=$Apache::inputtags::status['-1'];
1886: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1887: $target eq 'tex') {
1.249 albertel 1888: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1889: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1890: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1891: &Apache::inputtags::grade;
1.324 albertel 1892: } elsif ($status eq 'NEEDS_CHECKIN') {
1893: # no need to grade, and don't want to hide data
1.249 albertel 1894: } else {
1895: # move any submission data to .hidden
1896: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1897: }
1.159 albertel 1898: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1899: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1900: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1901: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1902: # if part is zero, no <part>s existed, so we need show the current
1903: # grading status
1904: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1905: $result.= $gradestatus;
1906: }
1907: if (
1.284 albertel 1908: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1909: ($target eq 'answer') || ($target eq 'tex')
1910: ) {
1.490 raeburn 1911: if (($target ne 'tex') &&
1912: ($env{'form.answer_output_mode'} ne 'tex') &&
1913: (!$env{'form.grade_imsexport'})) {
1.254 www 1914: $result.="</form>";
1.159 albertel 1915: }
1916: if ($target eq 'web') {
1.507 raeburn 1917: #
1918: # Closing </body></html> not added by end_page().
1919: # Added separately at end of this routine, after added
1920: # <script></script> so document will be valid xhtml.
1921: #
1922: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1923: 'notbody' => 1});
1.159 albertel 1924: } elsif ($target eq 'tex') {
1.178 sakharuk 1925: my $endminipage = '';
1.284 albertel 1926: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1927: $endminipage = '\end{minipage}';
1928: }
1.284 albertel 1929: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1930: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1931: } else {
1.262 sakharuk 1932: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1933: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1934: $result .= $endminipage.'\end{document} ';
1935: } else {
1.382 albertel 1936: $result .= $endminipage;
1.262 sakharuk 1937: }
1.159 albertel 1938: }
1939: }
1940: }
1.476 www 1941: if ($target eq 'web') {
1942: $result.=&Apache::functionplotresponse::init_script();
1943: }
1.159 albertel 1944: if ($target eq 'grade') {
1945: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1946: &finalize_storage();
1947: }
1.284 albertel 1948: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1949: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1950: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1951: # normally we get it from above, but in CSTR
1.172 albertel 1952: # we always show answer mode too.
1.159 albertel 1953: }
1954: } elsif ($target eq 'meta') {
1955: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1956: @Apache::inputtags::response=();
1.159 albertel 1957: $result=&Apache::response::mandatory_part_meta;
1958: }
1.215 albertel 1959: $result.=&Apache::response::meta_part_order();
1.258 albertel 1960: $result.=&Apache::response::meta_response_order();
1.159 albertel 1961: } elsif ($target eq 'edit') {
1962: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1963: $result .= &problem_edit_footer();
1.320 albertel 1964: } elsif ($target eq 'modified') {
1965: $result .= $token->[2];
1.159 albertel 1966: }
1.155 albertel 1967:
1.284 albertel 1968: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1969: &Apache::inputtags::check_for_duplicate_ids();
1970: }
1.204 albertel 1971:
1972: &reset_problem_globals('problem');
1.159 albertel 1973:
1.502 foxr 1974: #
1975: # This shouild be just above the return so that the
1976: # time put in the javascript is as late as possible in the
1977: # computation:
1978: #
1979: if ($target eq 'web') {
1980: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1981: #
1982: # Closing tags delayed so any <script></script> tags
1983: # not in head can appear inside body, for valid xhtml.
1984: #
1985: $result .= "</body>\n</html>";
1.502 foxr 1986: }
1.159 albertel 1987: return $result;
1.48 albertel 1988: }
1989:
1.108 albertel 1990:
1.48 albertel 1991: sub start_library {
1.159 albertel 1992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1993: my ($result,$form_tag_start);
1.371 albertel 1994: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1995: &init_problem_globals('library');
1996: $Apache::lonhomework::type='problem';
1997: }
1.159 albertel 1998: if ($target eq 'edit') {
1.343 albertel 1999: ($result,$form_tag_start)=
2000: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2001: 'Edit');
2002: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2003: my $temp=&Apache::edit::insertlist($target,$token);
2004: $result.=$temp;
2005: } elsif ($target eq 'modified') {
2006: $result=$token->[4];
1.340 albertel 2007: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2008: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2009: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2010: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2011: ($result,$form_tag_start)=
2012: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2013: $name);
1.479 raeburn 2014: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2015: $result.=" \n $form_tag_start".
1.159 albertel 2016: '<input type="hidden" name="submitted" value="yes" />';
2017: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2018: if ($Apache::lonhomework::type eq 'practice') {
2019: $result.= '<input type="submit" name="resetdata" '.
2020: 'value="'.&mt('New Problem Variation').'" />'.
2021: &practice_problem_header().'<hr />';
2022: }
1.159 albertel 2023: }
2024: return $result;
1.48 albertel 2025: }
2026:
2027: sub end_library {
1.159 albertel 2028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2029: my $result='';
2030: if ($target eq 'edit') {
2031: $result=&problem_edit_footer();
1.371 albertel 2032: } elsif ($target eq 'web'
2033: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2034: && $env{'request.state'} eq "construct") {
1.349 albertel 2035: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2036: }
1.371 albertel 2037: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2038: &reset_problem_globals('library');
2039: }
1.159 albertel 2040: return $result;
1.197 www 2041: }
2042:
2043: sub start_definetag {
1.326 albertel 2044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2045:
2046: my $result;
2047:
2048: my $name = $token->[2]->{'name'};
1.326 albertel 2049: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2050: if ($target eq 'web') {
2051: if ($name=~/^\//) {
2052: $result=
2053: '<br /><table class="LC_sty_end"><tr><th>'.
2054: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2055: } else {
2056: $result=
2057: '<br /><table class="LC_sty_begin"><tr><th>'.
2058: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2059: }
2060: $skip = &HTML::Entities::encode($skip, '<>&"');
2061: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2062: }
2063: return $result;
2064: }
2065:
2066: sub end_definetag {
2067: return '';
1.1 albertel 2068: }
2069:
2070: sub start_block {
1.201 albertel 2071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2072:
2073: my $result;
1.1 albertel 2074:
1.339 albertel 2075: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2076: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2077: my $code = $token->[2]->{'condition'};
1.385 albertel 2078: if (defined($code) && $code ne '') {
1.137 albertel 2079: if (!$Apache::lonxml::default_homework_loaded) {
2080: &Apache::lonxml::default_homework_load($safeeval);
2081: }
1.131 albertel 2082: $result = &Apache::run::run($code,$safeeval);
2083: &Apache::lonxml::debug("block :$code: returned :$result:");
2084: } else {
2085: $result='1';
2086: }
2087: if ( ! $result ) {
1.201 albertel 2088: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2089: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2090: }
2091: $result='';
2092: } elsif ($target eq 'edit') {
2093: $result .=&Apache::edit::tag_start($target,$token);
2094: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2095: $token,40);
2096: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2097: } elsif ($target eq 'modified') {
2098: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2099: $safeeval,'condition');
2100: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2101: }
1.131 albertel 2102: return $result;
1.1 albertel 2103: }
2104:
2105: sub end_block {
1.167 www 2106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2107: my $result;
2108: if ($target eq "edit") {
2109: $result.= &Apache::edit::tag_end($target,$token,'');
2110: }
2111: return $result;
2112: }
1.500 foxr 2113: #
2114: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2115: # ...
2116: # </languageblock>
2117: #
2118: # This declares the intent to provide content that can be rendered in the
2119: # set of languages in the include specificatino but not in the exclude
2120: # specification. If a currently preferred language is in the include list
2121: # the content in the <languageblock>...</languageblock> is rendered
2122: # If the currently preferred language is in the exclude list,
2123: # the content in the <languageblock>..></languageblock is not rendered.
2124: #
2125: # Pathalogical case handling:
2126: # - Include specified, without the preferred language but exclude specified
2127: # also without the preferred langauge results in rendering the block.
2128: # - Exclude specified without include and excluden not containing a
2129: # preferred language renders the block.
2130: # - Include and exclude both specifying the preferred language does not
2131: # render the block.
2132: # - If neither include/exclude is specified, the block gets rendered.
2133: #
2134: # This tag has no effect when target is in {edit, modified}
2135: #
1.167 www 2136: sub start_languageblock {
1.201 albertel 2137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2138:
1.500 foxr 2139: my $result = '';
1.167 www 2140:
1.339 albertel 2141: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2142: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2143: my $include = $token->[2]->{'include'};
2144: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2145: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2146:
2147: # This should not even happen, since we should at least have the server language
2148:
2149: if (!$preferred_languages[0]) {
2150: $preferred_languages[0]='en';
2151: }
2152:
2153: # Now loop over all languages in order of preference
2154:
2155: my $render;
1.398 www 2156: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2157:
2158: # If neither include/nor exlude is present the block is going
2159: # to get rendered.
2160:
1.399 www 2161: my $found=0;
1.500 foxr 2162: $render=1;
2163:
2164: # If include is specified, don't render the block
2165: # unless the preferred language is included in the set.
2166:
1.398 www 2167: if ($include) {
1.500 foxr 2168: $render=0;
1.398 www 2169: foreach my $included_language (split(/\,/,$include)) {
2170: if ($included_language eq $preferred_language) {
1.500 foxr 2171: $render=1;
1.399 www 2172: $found=1;
1.500 foxr 2173: last; # Only need to find the first.
1.398 www 2174: }
2175: }
2176: }
1.500 foxr 2177: # Do we have an exclude argument?
2178: # If so, and one of the languages matches a preferred language
2179: # inhibit rendering the block. Note that in the pathalogical case the
2180: # author has specified a preferred language in both the include and exclude
2181: # attribte exclude is preferred.
2182:
1.398 www 2183: if ($exclude) {
1.500 foxr 2184: $render=1;
1.398 www 2185: foreach my $excluded_language (split(/\,/,$exclude)) {
2186: if ($excluded_language eq $preferred_language) {
1.500 foxr 2187: $render=0;
1.399 www 2188: $found=1;
1.500 foxr 2189: last; # Only need to find the first.
1.398 www 2190: }
2191: }
2192: }
1.500 foxr 2193: if ($found) {
2194: last; # Done on any match of include or exclude.
2195: }
1.398 www 2196: }
1.500 foxr 2197: # If $render not true skip the entire block until </languageblock>
2198: #
2199:
2200: if ( ! $render ) {
1.201 albertel 2201: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2202: $style);
2203: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2204: }
1.500 foxr 2205: # If $render is true, we've not skipped the contents of the <languageglock>
2206: # and the normal loncapa processing flow will render it as a matter of course.
2207:
1.167 www 2208: } elsif ($target eq 'edit') {
2209: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2210: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2211: $token,40);
1.211 albertel 2212: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2213: $token,40);
2214: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2215: } elsif ($target eq 'modified') {
2216: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2217: $safeeval,'include',
2218: 'exclude');
1.167 www 2219: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2220: }
2221: return $result;
2222: }
2223:
2224: sub end_languageblock {
1.170 www 2225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2226: my $result;
1.201 albertel 2227: if ($target eq "edit") {
1.170 www 2228: $result.= &Apache::edit::tag_end($target,$token,'');
2229: }
2230: return $result;
2231: }
1.500 foxr 2232: # languagblock specific tags:
2233: {
2234: # For chunks of a resource that has translations, this hash contains
2235: # the translations available indexed by language name.
2236: #
2237:
2238: my %available_texts;
1.170 www 2239:
1.500 foxr 2240: # <translated> starts a block of a resource that has multiple translations.
2241: # See the <lang> tag as well.
2242: # When </translated> is encountered if there is a translation for the
2243: # currently preferred language, that is rendered inthe web/tex/webgrade
2244: # targets. Otherwise, the default text is rendered.
2245: #
2246: # Note that <lang> is only registered for the duration of the
2247: # <translated>...</translated> block
2248: #
2249: # Pathalogical case handling:
2250: # - If there is no <lang> that specifies a 'default' and there is no
2251: # translation that matches a preferred language, nothing is rendered.
2252: # - Nested <translated>...</translated> might be linguistically supported by
2253: # XML due to the stack nature of tag registration(?) however the rendered
2254: # output will be incorrect because there is only one %available_texts
2255: # has and end_translated clears it.
2256: # - Material outside of a <lang>...</lang> block within the
2257: # <translated>...<translated> block won't render either e.g.:
2258: # <translated>
2259: # The following will be in your preferred langauge:
2260: # <lang which='en'>
2261: # This section in english
2262: # </lang>
2263: # <lang which='sgeiso'>
2264: # Hier es ist auf Deutsch.
2265: # </lang>
2266: # <lang which='sfriso'>
2267: # En Francais
2268: # </lang>
2269: # </translated>
2270: #
2271: # The introductory text prior to the first <lang> tag is not rendered.
2272: #
1.397 albertel 2273: sub start_translated {
2274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2275: &Apache::lonxml::register('Apache::structuretags',('lang'));
2276: undef(%available_texts);
2277: }
2278:
2279: sub end_translated {
2280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2281: my $result;
2282: #show the translation on viewable targets
2283: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2284: # or non-viewable targets, if it's embedded in something that
2285: # wants the output
2286: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2287: && &Apache::lonxml::in_redirection() ) ) {
2288: my @possibilities = keys(%available_texts);
2289: my $which =
2290: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2291: if ($target eq 'tex') {
2292: $result = &select_hyphenation($which);
2293: }
2294: $result .= $available_texts{$which};
2295: if ($target eq 'tex') {
2296: $result .= &select_metadata_hyphenation(); # Restore original language.
2297: }
1.397 albertel 2298: }
2299: undef(%available_texts);
2300: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2301: return $result;
2302: }
2303:
1.500 foxr 2304: # <lang [which='language-name'] [other='lang1,lang2...']>
2305: # Specifies that the block contained within it is a translation
2306: # for a specific language specified by the 'which' attribute. The
2307: # 'other' attribute can be used by itself or in conjunction with
2308: # which to specify this tag _may_ be used as a translation for some
2309: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2310: # specifying that the block provides a translation for US (primary)
2311: # Canadian, Australian and UK Englush.
2312: #
2313: # Comment: this seems a bit silly why not just support a list of languages
2314: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2315: #
2316: # Effect:
2317: # The material within the <lang>..</lang> block is stored in the
2318: # specified set of $available_texts hash entries, the appropriate one
2319: # is selected at </translated> time.
2320: #
2321: # Pathalogical case handling:
2322: # If a language occurs multiple times within a <translated> block,
2323: # only the last one is rendered e.g.:
2324: #
2325: # <translated>
2326: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2327: # Red green color blindness is quite common affecting about 7.8% of
2328: # the male population, but onloy about .65% of the female population.
2329: # </lang>
2330: # Red green colour blindness is quite common affecting about 7.8% of
2331: # the male population, but onloy about .65% of the female population.
2332: # <lang which='seniso', other='senisoCA,senisoAU'>
2333: # </translated>
2334: #
2335: # renders the correct spelling of color (colour) for people who have specified
2336: # a preferred language that is one of the British Commonwealth languages
2337: # even though those are also listed as valid selections for the US english
2338: # <lang> block.
2339: #
1.397 albertel 2340: sub start_lang {
2341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2342: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2343: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2344: &Apache::lonxml::startredirection();
2345: }
2346: return '';
2347: }
2348:
2349: sub end_lang {
2350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2351: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2352: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2353: my $result = &Apache::lonxml::endredirection();
2354: my $which = &Apache::lonxml::get_param('which',$parstack,
2355: $safeeval);
1.431 raeburn 2356: if ($which=~/\w/) {
2357: $available_texts{$which} = $result;
2358: }
2359: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2360: $safeeval);
2361: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2362: if ($language=~/\w/) {
2363: $available_texts{$language} = $result;
2364: }
1.427 bisitz 2365: }
2366:
1.397 albertel 2367: }
2368: return '';
2369: }
1.500 foxr 2370: } # end langauge block specific tags.
2371:
1.397 albertel 2372:
1.170 www 2373: sub start_instructorcomment {
1.201 albertel 2374: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2375:
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') {
1.468 raeburn 2380: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2381: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2382: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2383: $parser,$style);
1.170 www 2384: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2385: }
2386: $result='';
2387: } elsif ($target eq 'edit') {
2388: $result .=&Apache::edit::tag_start($target,$token);
2389: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2390: }
2391: return $result;
2392: }
2393:
2394: sub end_instructorcomment {
1.159 albertel 2395: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2396: my $result;
2397: if ($target eq "edit") {
2398: $result.= &Apache::edit::tag_end($target,$token,'');
2399: }
2400: return $result;
1.4 tsai 2401: }
2402:
2403: sub start_while {
1.326 albertel 2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2405:
1.160 albertel 2406: my $result;
1.339 albertel 2407: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2408: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2409: my $code = $token->[2]->{'condition'};
1.4 tsai 2410:
1.160 albertel 2411: push( @Apache::structuretags::whileconds, $code);
2412: if (!$Apache::lonxml::default_homework_loaded) {
2413: &Apache::lonxml::default_homework_load($safeeval);
2414: }
2415: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2416: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2417: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2418: push( @Apache::structuretags::whileline, $token->[5]);
2419: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2420: if ( $result ) {
2421: &Apache::lonxml::newparser($parser,\$bodytext);
2422: }
2423: } elsif ($target eq 'edit') {
2424: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2425: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2426: $token,40);
2427: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2428: } elsif ($target eq 'modified') {
2429: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2430: $safeeval,'condition');
2431: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2432: }
1.160 albertel 2433: return $result;
1.4 tsai 2434: }
2435:
2436: sub end_while {
1.159 albertel 2437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2438: my $result;
2439:
1.339 albertel 2440: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2441: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2442: my $code = pop(@Apache::structuretags::whileconds);
2443: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2444: my $line = pop(@Apache::structuretags::whileline);
2445: my $return = &Apache::run::run($code,$safeeval);
2446: my $starttime=time;
2447: my $error=0;
2448: while ($return) {
2449: if (time-$starttime >
2450: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2451: $return = 0; $error=1; next;
1.161 albertel 2452: }
2453: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2454: if ($target eq 'grade' || $target eq 'answer' ||
2455: $target eq 'analyze') {
2456: # grade/answer/analyze should produce no output but if we
2457: # are redirecting, the redirecter should know what to do
2458: # with the output
2459: if (!$Apache::lonxml::redirection) { undef($result); }
2460: }
1.161 albertel 2461: $return = &Apache::run::run($code,$safeeval);
2462: }
1.516 bisitz 2463: if ($error) {
2464: &Apache::lonxml::error(
2465: '<pre>'
2466: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2467: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2468: .&mt('This occurred while running <while> on line [_1].',
2469: $line)
2470: .'</pre>');
2471: }
1.160 albertel 2472: } elsif ($target eq "edit") {
2473: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2474: }
1.160 albertel 2475: return $result;
1.1 albertel 2476: }
1.6 tsai 2477:
1.160 albertel 2478: # <randomlist show="1">
1.6 tsai 2479: # <tag1>..</tag1>
2480: # <tag2>..</tag2>
2481: # <tag3>..</tag3>
1.160 albertel 2482: # ...
1.6 tsai 2483: # </randomlist>
2484: sub start_randomlist {
1.326 albertel 2485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2486: my $result;
1.339 albertel 2487: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2488: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2489: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2490: my $b_parser= HTML::LCParser->new(\$body);
2491: $b_parser->xml_mode(1);
2492: $b_parser->marked_sections(1);
1.159 albertel 2493: my $b_tok;
2494: my @randomlist;
2495: my $list_item;
2496: while($b_tok = $b_parser->get_token() ) {
2497: if($b_tok->[0] eq 'S') { # start tag
2498: # get content of the tag until matching end tag
2499: # get all text upto the matching tag
2500: # and push the content into @randomlist
2501: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2502: $b_parser);
2503: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2504: push(@randomlist,$list_item);
2505: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2506: # $list_item</b>";
2507: }
2508: if($b_tok->[0] eq 'T') { # text
2509: # what to do with text in between tags?
2510: # print "<b>TEXT $b_tok->[1]</b><br />";
2511: }
2512: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2513: # print "<b>END-TAG $b_tok->[1]</b><br />";
2514: # }
2515: }
1.303 albertel 2516: if (@randomlist) {
2517: my @idx_arr = (0 .. $#randomlist);
2518: &Apache::structuretags::shuffle(\@idx_arr);
2519: my $bodytext = '';
2520: my $show=$#randomlist;
2521: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2522: $showarg--;
2523: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2524: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2525: my @currlist;
2526: my $part = $Apache::inputtags::part;
2527: if ($part ne '') {
2528: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2529: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2530: if (!(grep(/^\Q$part\E$/,@currlist))) {
2531: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2532: }
2533: } else {
2534: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2535: }
2536: }
2537: }
1.526 raeburn 2538: for my $i (0 .. $show) {
2539: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2540: }
2541: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2542: }
2543: } elsif ($target eq 'edit' ) {
2544: $result .=&Apache::edit::tag_start($target,$token);
2545: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2546: $token,5);
2547: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2548: } elsif ($target eq 'modified' ) {
2549: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2550: $safeeval,'show');
2551: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2552: }
2553: return $result;
1.7 tsai 2554: }
2555:
2556: sub shuffle {
2557: my $a=shift;
2558: my $i;
1.303 albertel 2559: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2560: &Apache::response::pushrandomnumber();
1.159 albertel 2561: for($i=@$a;--$i;) {
2562: my $j=int(&Math::Random::random_uniform() * ($i+1));
2563: next if $i == $j;
2564: @$a[$i,$j] = @$a[$j,$i];
2565: }
1.251 albertel 2566: &Apache::response::poprandomnumber();
1.7 tsai 2567: }
1.6 tsai 2568: }
2569:
2570: sub end_randomlist {
1.159 albertel 2571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2572: my $result;
2573: if ($target eq 'edit' ) {
2574: $result=&Apache::edit::tag_end($target,$token,
2575: 'End Randomly Parsed Block');
2576: }
2577: return $result;
1.6 tsai 2578: }
2579:
1.283 albertel 2580: sub ordered_show_check {
2581: my $last_part=$Apache::inputtags::partlist[-2];
2582: my $in_order=
2583: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2584: my $in_order_show=1;
2585: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2586: $in_order_show=&Apache::response::check_status($last_part);
2587: }
2588: return $in_order_show;
2589: }
2590:
1.469 www 2591:
2592: sub start_startpartmarker {
2593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2594: my $result='';
2595: if ($target eq 'edit') {
2596: $result=&Apache::edit::tag_start($target,$token);
2597: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2598: $result.=&Apache::edit::end_table();
2599:
2600: }
2601: return $result;
2602: }
2603:
2604: sub end_startpartmarker {
2605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2606: my @result;
2607: if ($target eq 'edit') { $result[1]='no'; }
2608: return @result;
2609: }
2610:
2611: sub start_endpartmarker {
2612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2613: my $result='';
2614: if ($target eq 'edit') {
2615: $result=&Apache::edit::tag_start($target,$token);
2616: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2617: $result.=&Apache::edit::end_table();
2618:
2619: }
2620: return $result;
2621: }
2622:
2623: sub end_endpartmarker {
2624: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2625: my @result;
2626: if ($target eq 'edit') { $result[1]='no'; }
2627: return @result;
2628: }
2629:
2630:
2631:
2632:
2633:
1.11 albertel 2634: sub start_part {
1.326 albertel 2635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2636: if (!$Apache::lonxml::metamode) {
2637: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2638: # duedates.
2639: }
1.159 albertel 2640: my $result='';
1.386 albertel 2641: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2642: $Apache::inputtags::part=$id;
1.177 albertel 2643: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2644: $Apache::inputtags::leniency='';
1.177 albertel 2645: @Apache::inputtags::response=();
1.159 albertel 2646: @Apache::inputtags::previous=();
2647: @Apache::inputtags::previous_version=();
1.405 albertel 2648: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2649: &Apache::response::reset_params();
2650:
1.159 albertel 2651: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2652: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2653: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2654: if ($Apache::lonhomework::type eq 'randomizetry') {
2655: my $rndseed=&setup_rndseed($safeeval,$target);
2656: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2657: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2658: }
2659: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2660: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2661: }
1.283 albertel 2662: my $in_order_show=&ordered_show_check();
1.214 albertel 2663: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2664: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2665: &Apache::run::run($expression,$safeeval);
1.159 albertel 2666:
2667: if ($target eq 'meta') {
1.224 www 2668: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2669: return &Apache::response::mandatory_part_meta.
2670: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2671: } elsif ($target eq 'web' || $target eq 'grade' ||
2672: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2673: if ($hidden || !$in_order_show) {
1.326 albertel 2674: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2675: } else {
2676: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2677: push (@Apache::inputtags::status,$status);
2678: my $expression='$external::datestatus="'.$status.'";';
2679: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2680: &Apache::run::run($expression,$safeeval);
1.284 albertel 2681: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2682: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2683: }
1.216 albertel 2684: if (( $status eq 'CLOSED' ) ||
2685: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2686: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2687: ( $status eq 'BANNED') ||
2688: ( $status eq 'UNAVAILABLE') ||
2689: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2690: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2691: $style);
1.159 albertel 2692: if ( $target eq "web" ) {
1.211 albertel 2693: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2694: } elsif ( $target eq 'tex' ) {
1.284 albertel 2695: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2696: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2697: } else {
1.211 albertel 2698: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2699: }
1.159 albertel 2700: }
2701: } else {
2702: if ($target eq 'tex') {
1.284 albertel 2703: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2704: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2705: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2706: } else {
2707: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2708: }
1.195 sakharuk 2709: }
1.159 albertel 2710: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2711: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2712: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2713: my $allow_print_points = 0;
2714: foreach my $partial_key (@allkeys) {
1.230 albertel 2715: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2716: if ($1 ne '0') {$allow_print_points=1;}
2717: }
2718: }
1.275 albertel 2719: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2720: if (defined($maxtries) && $maxtries < 0) {
2721: $allow_print_points=0;
2722: }
1.302 albertel 2723: if (lc($env{'course.'.$env{'request.course.id'}.
2724: '.disableexampointprint'}) eq 'yes') {
2725: $allow_print_points=0;
2726: }
1.463 foxr 2727: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2728: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2729:
2730: }
1.233 www 2731: } elsif ($target eq 'web') {
1.479 raeburn 2732: if ($status eq 'CAN_ANSWER') {
2733: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2734: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2735: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2736: my $num = scalar(@Apache::inputtags::partlist)-1;
2737: if ($probrandomize eq 'randomizetry') {
2738: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2739: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2740: } else {
2741: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2742: if ($probrandtries ne $reqtries) {
2743: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2744: }
2745: }
2746: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2747: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2748: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2749: }
2750: }
1.475 raeburn 2751: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2752: }
2753: }
2754: }
2755: } elsif ($target eq 'edit') {
2756: $result.=&Apache::edit::tag_start($target,$token);
2757: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2758: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2759: ' '.
2760: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2761: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2762: } elsif ($target eq 'modified') {
2763: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2764: $safeeval,'id','display');
1.159 albertel 2765: if ($constructtag) {
1.225 albertel 2766: #limiting ids to only letters numbers, and space
1.224 www 2767: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2768: $result = &Apache::edit::rebuild_tag($token);
2769: }
2770: }
2771: return $result;
1.11 albertel 2772: }
2773:
2774: sub end_part {
1.159 albertel 2775: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2776: &Apache::lonxml::debug("in end_part $target ");
2777: my $status=$Apache::inputtags::status['-1'];
2778: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2779: my $in_order_show=&ordered_show_check();
1.321 albertel 2780: my $result;
2781: if (!$Apache::lonxml::metamode) {
2782: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2783: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2784: }
1.312 albertel 2785: if ($target eq 'grade') {
1.249 albertel 2786: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2787: !$hidden && $in_order_show) {
1.311 foxr 2788: $result.=&Apache::inputtags::grade;
1.249 albertel 2789: } else {
2790: # move any submission data to .hidden
2791: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2792: }
1.283 albertel 2793: } elsif (($target eq 'web' || $target eq 'tex') &&
2794: !$hidden && $in_order_show) {
1.159 albertel 2795: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2796: $target);
1.490 raeburn 2797: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2798: ($env{'form.grade_imsexport'})) {
1.212 albertel 2799: $gradestatus='';
2800: }
1.311 foxr 2801: $result.=$gradestatus;
1.265 sakharuk 2802: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2803: } elsif ($target eq 'edit') {
1.311 foxr 2804: $result.=&Apache::edit::end_table();
1.322 albertel 2805: } elsif ($target eq 'modified') {
2806: $result .= $token->[2];
1.159 albertel 2807: }
2808: pop @Apache::inputtags::status;
2809: $Apache::inputtags::part='';
1.536 raeburn 2810: $Apache::inputtags::leniency='';
1.295 albertel 2811: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2812: return $result;
1.11 albertel 2813: }
1.1 albertel 2814:
1.25 albertel 2815: sub start_preduedate {
1.326 albertel 2816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2817: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2818: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2819: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2820: if (!$Apache::lonhomework::scantronmode &&
2821: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2822: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2823: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2824: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2825: }
1.24 albertel 2826: }
1.159 albertel 2827: return '';
1.24 albertel 2828: }
2829:
1.25 albertel 2830: sub end_preduedate {
1.159 albertel 2831: return '';
1.24 albertel 2832: }
2833:
1.369 foxr 2834: # In all the modes where <postanswerdate> text is
2835: # displayable, all we do is eat up the text between the start/stop
2836: # tags if the conditions are not right to display it.
1.25 albertel 2837: sub start_postanswerdate {
1.326 albertel 2838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2839: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2840: &Apache::lonnet::allowed('pav',
2841: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2842: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2843: $target eq 'tex' ) {
1.300 albertel 2844: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2845: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2846: (($target eq 'tex') && !$pav)) {
1.326 albertel 2847: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2848: }
2849: }
2850: return '';
1.24 albertel 2851: }
2852:
1.25 albertel 2853: sub end_postanswerdate {
1.159 albertel 2854: return '';
1.24 albertel 2855: }
2856:
1.25 albertel 2857: sub start_notsolved {
1.326 albertel 2858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2859: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2860: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2861: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2862: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2863: if ($gradestatus =~ /^correct/ &&
2864: &Apache::response::show_answer()) {
1.159 albertel 2865: &Apache::lonxml::debug("skipping");
1.326 albertel 2866: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2867: }
1.24 albertel 2868: }
1.159 albertel 2869: return '';
1.24 albertel 2870: }
2871:
1.25 albertel 2872: sub end_notsolved {
1.159 albertel 2873: return '';
1.24 albertel 2874: }
2875:
2876: sub start_solved {
1.326 albertel 2877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2878: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2879: $target eq 'tex') {
2880: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2881: if ($gradestatus !~ /^correct/ ||
2882: !&Apache::response::show_answer()) {
1.326 albertel 2883: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2884: }
1.24 albertel 2885: }
1.159 albertel 2886: return '';
1.24 albertel 2887: }
2888:
2889: sub end_solved {
1.248 albertel 2890: return '';
2891: }
2892:
2893: sub start_problemtype {
1.326 albertel 2894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2895: my $result;
1.339 albertel 2896: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2897: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2898: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2899: if (!defined($mode)) { $mode='show'; }
2900: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2901: my $found=0;
2902: foreach my $type (split(',',$for)) {
2903: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2904: }
2905: if ($mode eq 'show' && !$found) {
1.326 albertel 2906: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2907: }
2908: if ($mode eq 'hide' && $found) {
1.326 albertel 2909: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2910: }
2911: } elsif ($target eq 'edit') {
2912: $result .=&Apache::edit::tag_start($target,$token);
2913: $result.=&Apache::edit::select_arg('Mode:','mode',
2914: [['show','Show'],
2915: ['hide','Hide']]
2916: ,$token);
2917: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2918: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2919: ['survey','Survey'],
1.465 raeburn 2920: ['surveycred','Survey (with credit)'],
2921: ['anonsurvey','Anonymous Survey'],
2922: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2923: ['problem','Homework Problem'],
1.479 raeburn 2924: ['practice','Practice Problem'],
2925: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2926: ,$token);
2927: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2928: } elsif ($target eq 'modified') {
2929: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2930: $safeeval,'mode','for');
2931: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2932: }
2933: return $result;
2934: }
2935:
2936: sub end_problemtype {
1.159 albertel 2937: return '';
1.24 albertel 2938: }
1.34 albertel 2939:
2940: sub start_startouttext {
1.159 albertel 2941: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2942: my @result=(''.'');
2943: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2944:
2945: my $nesting =
2946: &Apache::lonxml::set_state('outtext',
2947: &Apache::lonxml::get_state('outtext')+1);
2948: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2949: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2950: }
1.159 albertel 2951: return (@result);
1.34 albertel 2952: }
1.159 albertel 2953:
1.34 albertel 2954: sub end_startouttext {
1.326 albertel 2955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2956: my $result='';
2957: my $text='';
2958: if ($target eq 'edit') {
1.424 foxr 2959: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2960: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 2961: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2962: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2963: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2964: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2965: .'</span></td>'
1.515 golterma 2966: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2967: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2968: .'</span></td>'
1.474 raeburn 2969: .'<td>'
2970: .&Apache::edit::insertlist($target,$token)
2971: .'</td>'
1.515 golterma 2972: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2973: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2974: &Apache::edit::end_row().
1.362 albertel 2975: &Apache::edit::start_spanning_row()."\n".
1.255 www 2976: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2977: }
2978: if ($target eq 'modified') {
1.219 albertel 2979: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2980: }
2981: if ($target eq 'tex') {
2982: $result .= '\noindent ';
2983: }
2984: return $result;
1.34 albertel 2985: }
1.159 albertel 2986:
1.34 albertel 2987: sub start_endouttext {
1.159 albertel 2988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2989: my $result='';
2990: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2991: if ($target eq "modified") {
2992: $result='<endouttext />'.
1.377 albertel 2993: &Apache::edit::handle_insertafter('startouttext');
2994: }
1.404 albertel 2995:
2996: my $nesting =
2997: &Apache::lonxml::set_state('outtext',
2998: &Apache::lonxml::get_state('outtext')-1);
2999: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3000: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3001: &Apache::lonxml::set_state('outtext', 0);
3002: }
1.159 albertel 3003: return $result;
1.34 albertel 3004: }
1.159 albertel 3005:
1.34 albertel 3006: sub end_endouttext {
1.159 albertel 3007: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3008: my @result=('','');
3009: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3010: return (@result);
1.34 albertel 3011: }
1.159 albertel 3012:
1.45 albertel 3013: sub delete_startouttext {
1.326 albertel 3014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3015: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3016: my $text=$$parser['-1']->get_text("/endouttext");
3017: my $ntoken=$$parser['-1']->get_token();
3018: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3019: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3020: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3021: # they did the last time round
3022: &Apache::lonxml::increasedepth($ntoken);
3023: &Apache::lonxml::decreasedepth($ntoken);
3024: return 1;
1.193 www 3025: }
3026:
3027: sub start_simpleeditbutton {
3028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3029: my $result='';
1.284 albertel 3030: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3031: ($target eq 'web') &&
1.330 albertel 3032: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3033: my $url=$env{'request.noversionuri'};
1.193 www 3034: $url=~s/\?.*$//;
1.367 albertel 3035: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3036: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3037: # $result='<p class="LC_warning">'
3038: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3039: # .&Apache::loncommon::help_open_topic('Caching')
3040: # .'</p>';
1.486 www 3041: $result.=&Apache::loncommon::head_subbox(
3042: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3043: .&Apache::lonhtmlcommon::add_item_funclist(
3044: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3045: .&mt('Edit').'</a>')
1.486 www 3046: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3047:
1.193 www 3048: }
3049: return $result;
3050: }
3051:
3052: sub end_simpleeditbutton {
3053: return '';
1.45 albertel 3054: }
1.34 albertel 3055:
1.428 raeburn 3056: sub practice_problem_header {
3057: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3058: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3059: '</span>';
3060: }
3061:
1.479 raeburn 3062: sub randomizetry_problem_header {
3063: my ($problemstatus,$reqtries) = @_;
3064: my ($header,$text);
3065: if ($reqtries > 1) {
3066: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3067: if (($problemstatus eq 'no') ||
3068: ($problemstatus eq 'no_feedback_ever')) {
3069: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3070: } else {
3071: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3072: }
3073: } else {
3074: $header = &mt('New Problem Variation Each Try');
3075: if (($problemstatus eq 'no') ||
3076: ($problemstatus eq 'no_feedback_ever')) {
3077: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3078:
3079: } else {
3080: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3081: }
3082: }
3083: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3084: '<span class="LC_info">'.$text.'</span><hr />';
3085: }
3086:
3087: sub randomizetry_part_header {
3088: my ($problemstatus,$reqtries,$num) = @_;
3089: my ($header,$text);
3090: if ($reqtries eq 'none') {
3091: $header = &mt('No Question Variation');
3092: $text = &mt('For this question there will no new variation after a try.');
3093: } elsif ($reqtries > 1) {
3094: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3095: if (($problemstatus eq 'no') ||
3096: ($problemstatus eq 'no_feedback_ever')) {
3097: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3098: } else {
3099: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3100: }
3101: } else {
3102: $header = &mt('New Question Variation For Each Try');
3103: if (($problemstatus eq 'no') ||
3104: ($problemstatus eq 'no_feedback_ever')) {
3105: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3106: } else {
3107: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3108: }
3109: }
3110: my $output;
3111: if ($num > 1) {
3112: $output .= '<hr />';
3113: }
3114: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3115: '<span class="LC_info">'.$text.'</span><br /><br />';
3116: return $output;
3117: }
3118:
1.1 albertel 3119: 1;
3120: __END__
1.435 jms 3121:
3122: =pod
3123:
3124: =back
3125:
3126: =cut
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