Annotation of loncom/homework/structuretags.pm, revision 1.548
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.548 ! raeburn 4: # $Id: structuretags.pm,v 1.547 2016/04/04 15:57:07 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')) {
1.546 raeburn 229: my $crstype = &Apache::loncommon::course_type();
230: if ($crstype eq 'Community') {
1.531 raeburn 231: $crstype = 'community';
1.546 raeburn 232: } elsif ($crstype eq 'Placement') {
233: $crstype = 'placement';
1.531 raeburn 234: } else {
235: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
236: $crstype = 'official';
237: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
238: $crstype = 'textbook';
239: } else {
240: $crstype = 'unofficial';
241: }
242: }
243: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
244: if ($postsubmit eq '') {
245: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
246: $postsubmit = $domdefs{'postsubmit'};
247: unless ($postsubmit eq 'off') {
248: $timeout = $domdefs{$crstype.'postsubtimeout'};
249: }
250: } elsif ($postsubmit eq '0') {
251: $postsubmit = 'off';
252: } elsif ($postsubmit eq '1') {
253: $postsubmit = 'on';
254: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
255: if ($timeout eq '') {
256: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
257: $timeout = $domdefs{$crstype.'postsubtimeout'};
258: }
259: }
260: if ($timeout eq '') {
261: $timeout = 60;
262: }
263: } else {
264: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
265: $postsubmit = $domdefs{'postsubmit'};
266: unless ($postsubmit eq 'off') {
267: $timeout = 60;
268: }
269: }
270: my $jstimeout = 0;
271: if ($timeout) {
272: $jstimeout = 1000 * $timeout;
273: }
1.400 albertel 274: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 275: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 276: &setmode_javascript().
1.531 raeburn 277: <<"JS";
1.400 albertel 278: <script type="text/javascript">
1.483 raeburn 279: // <![CDATA[
1.494 raeburn 280: function setSubmittedPart (part,prefix) {
281: if (typeof(prefix) == 'undefined') {
282: this.document.lonhomework.submitted.value="part_"+part;
283: } else {
284: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
285: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
286: this.document.lonhomework.elements[i].value="part_"+part;
287: }
288: }
289: }
1.400 albertel 290: }
291:
1.532 raeburn 292: function disableAutoComplete (id) {
293: var field = document.getElementById(id);
294: if (field != null && field != undefined){
295: if ('autocomplete' in field) {
296: field.autocomplete = "off";
297: } else {
298: field.setAttribute("autocomplete", "off");
299: }
300: }
301: }
302:
1.400 albertel 303: function image_response_click (which, e) {
304: init_geometry();
305: if (!e) { e = window.event; } //IE
306: var input_element = document.lonhomework.elements[which];
1.401 albertel 307: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 308: var token = token_element.value;
1.401 albertel 309: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 310: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
311: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
312: var click = x+':'+y;
313: input_element.value = click;
1.485 raeburn 314: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 315: }
1.520 raeburn 316:
317: var submithandled = 0;
1.521 raeburn 318: var keypresshandled = 0;
1.531 raeburn 319: var postsubmit = '$postsubmit';
1.520 raeburn 320:
1.531 raeburn 321: \$(document).ready(function(){
322: if (postsubmit != 'off') {
323: \$(document).keypress(function(event){
1.521 raeburn 324: var keycode = (event.keyCode ? event.keyCode : event.which);
325: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 326: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 327: keypresshandled = 1;
1.531 raeburn 328: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 329: if (idsArray.length) {
330: event.preventDefault();
331: var itemsArray = idsArray[1].split(/_/);
332: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 333: \$("#"+buttonId).trigger("click");
1.521 raeburn 334: }
335: }
336: }
337: });
338:
1.531 raeburn 339: \$(document).delegate('form :submit', 'click', function( event ) {
340: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 341: var buttonId = this.id;
1.531 raeburn 342: var timeout = $jstimeout;
1.520 raeburn 343: if (submithandled == 0) {
344: submithandled = 1;
1.531 raeburn 345: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 346: "color": "black","padding": "2px"}) ;
1.531 raeburn 347: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 348: if (buttonId != "all_submit") {
1.531 raeburn 349: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 350: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 351: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 352: }
1.520 raeburn 353: }
1.522 raeburn 354: } else {
1.531 raeburn 355: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 356: }
1.531 raeburn 357: \$(this.form).submit();
358: \$( ".LC_hwk_submit" ).prop( "disabled", true);
359: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 360: event.preventDefault();
1.531 raeburn 361:
362: if (timeout > 0) {
363: setTimeout(function(){
364: \$( "#msg_"+buttonId ).css({"display": "none"});
365: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
366: if (buttonId != "all_submit") {
367: if (( "#"+buttonId+"_pressed" ).length) {
368: \$( "#"+buttonId+"_pressed" ).val( "" );
369: }
370: }
371: }
372: \$( ".LC_hwk_submit" ).prop( "disabled", false);
373: \$( ".LC_textline" ).prop( "readonly", false);
374: submithandled = 0;
375: keypresshandled = 0;
376: }, timeout);
377: }
1.520 raeburn 378: return true;
379: }
380: }
381: });
1.531 raeburn 382: }
1.520 raeburn 383: });
384:
1.483 raeburn 385: // ]]>
1.400 albertel 386: </script>
387: JS
388: }
389:
1.416 raeburn 390: sub setmode_javascript {
391: return <<"ENDSCRIPT";
392: <script type="text/javascript">
1.485 raeburn 393: // <![CDATA[
1.416 raeburn 394: function setmode(form,probmode) {
395: form.problemmode.value = probmode;
396: form.submit();
397: }
1.485 raeburn 398: // ]]>
1.416 raeburn 399: </script>
400: ENDSCRIPT
401: }
402:
1.48 albertel 403: sub page_start {
1.345 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
405: $extra_head)=@_;
1.159 albertel 406: my %found;
1.207 albertel 407: foreach my $taginside (@$tagstack) {
1.159 albertel 408: foreach my $taglookedfor ('html','body','form') {
409: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
410: }
411: }
412:
1.343 albertel 413: if ($target eq 'tex') {
414: return
415: &Apache::londefdef::start_html($target,$token,$tagstack,
416: $parstack,$parser,$safeeval);
417: }
418:
1.474 raeburn 419: $extra_head .= &homework_js().
420: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
421: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
422: my %textarea_args = (
423: dragmath => 'math',
424: );
425: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 426: }
1.478 raeburn 427: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 428: my ($needs_upload,$partlist);
1.495 raeburn 429: my ($symb)= &Apache::lonnet::whichuser();
430: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 431: if ($is_task) {
1.495 raeburn 432: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 433: } else {
434: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 435: unless ($env{'request.state'} eq 'construct') {
436: my $navmap = Apache::lonnavmaps::navmap->new();
437: if (ref($navmap)) {
438: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 439: my $is_page;
440: if (ref($mapres)) {
441: $is_page = $mapres->is_page();
442: }
443: unless ($is_page) {
1.495 raeburn 444: $needs_upload = 1;
445: }
1.528 raeburn 446: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
447: my $res = $navmap->getBySymb($symb);
448: if (ref($res)) {
449: $partlist = $res->parts();
450: }
451: }
1.495 raeburn 452: }
453: }
1.493 raeburn 454: } else {
455: unless ($env{'request.state'} eq 'construct') {
456: my $navmap = Apache::lonnavmaps::navmap->new();
457: if (ref($navmap)) {
1.495 raeburn 458: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 459: my $is_page;
460: if (ref($mapres)) {
461: $is_page = $mapres->is_page();
462: }
1.528 raeburn 463: if ($is_page) {
464: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
465: my $res = $navmap->getBySymb($symb);
466: if (ref($res)) {
467: $partlist = $res->parts();
468: }
469: }
470: } else {
1.495 raeburn 471: my $res = $navmap->getBySymb($symb);
472: if (ref($res)) {
1.528 raeburn 473: $partlist = $res->parts();
1.495 raeburn 474: if (ref($partlist) eq 'ARRAY') {
475: foreach my $part (@{$partlist}) {
476: my @types = $res->responseType($part);
477: my @ids = $res->responseIds($part);
478: for (my $i=0; $i < scalar(@ids); $i++) {
479: if ($types[$i] eq 'essay') {
480: my $partid = $part.'_'.$ids[$i];
481: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
482: $needs_upload = 1;
483: last;
484: }
1.493 raeburn 485: }
486: }
487: }
1.495 raeburn 488: }
489: }
1.493 raeburn 490: }
491: }
492: }
493: }
1.495 raeburn 494: if ($needs_upload) {
1.538 musolffc 495: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
496: .'<script type="text/javascript"
497: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 498: }
1.478 raeburn 499: }
1.425 raeburn 500:
1.344 albertel 501: my %body_args;
502: if (defined($found{'html'})) {
503: $body_args{'skip_phases'}{'head'}=1;
504: } else {
1.343 albertel 505:
1.345 albertel 506: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 507:
1.379 albertel 508: $extra_head .= &Apache::londefdef::generate_css_links();
509:
1.384 albertel 510: if ($env{'request.state'} eq 'construct') {
1.343 albertel 511: $extra_head.=&Apache::edit::js_change_detection().
512: "<script type=\"text/javascript\">\n".
513: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
514: &Apache::loncommon::browser_and_searcher_javascript().
515: "\n</script>\n";
1.525 raeburn 516: if ($target eq 'edit') {
517: $extra_head .= &Apache::edit::js_update_linknum();
518: }
1.343 albertel 519: }
1.159 albertel 520: }
1.343 albertel 521:
1.446 bisitz 522: my $pageheader = '';
1.344 albertel 523: if (defined($found{'body'})) {
524: $body_args{'skip_phases'}{'body'}=1;
525: } elsif (!defined($found{'body'})
526: && $env{'request.state'} eq 'construct') {
1.343 albertel 527: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 528: unless ($env{'form.inhibitmenu'} eq 'yes') {
529: # Breadcrumbs for Authoring Space
530: &Apache::lonhtmlcommon::clear_breadcrumbs();
531: &Apache::lonhtmlcommon::add_breadcrumb({
532: 'text' => 'Authoring Space',
533: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
534: });
535: # breadcrumbs (and tools) will be created
536: # in start_page->bodytag->innerregister
1.460 droeschl 537:
1.450 bisitz 538: # FIXME Where are we?
1.542 raeburn 539: # &Apache::lonhtmlcommon::add_breadcrumb({
540: # 'text' => 'Problem Editing', # 'Problem Testing'
541: # 'href' => '',
542: # });
543: $pageheader = &Apache::loncommon::head_subbox(
544: &Apache::loncommon::CSTR_pageheader());
545: }
546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.518 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.528 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.528 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 646: my ($questiontype,$set_safespace,$rndseed);
647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.333 albertel 653: if ($env{'request.state'} eq "construct"
654: || $symb eq ''
655: || $Apache::lonhomework::type eq 'practice'
656: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 657: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 658: ['rndseed']);
1.284 albertel 659: $rndseed=$env{'form.rndseed'};
1.159 albertel 660: if (!$rndseed) {
1.162 albertel 661: $rndseed=$Apache::lonhomework::history{'rndseed'};
662: if (!$rndseed) {
663: $rndseed=time;
664: }
1.284 albertel 665: $env{'form.rndseed'}=$rndseed;
1.162 albertel 666: }
1.479 raeburn 667: if (($env{'request.state'} eq "construct") &&
668: ($Apache::lonhomework::type eq 'randomizetry')) {
669: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
670: if ($tries) {
671: $rndseed += $tries;
672: }
1.480 raeburn 673: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 674: }
1.374 albertel 675: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
676: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 677: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 678: srand(time);
679: $rndseed=int(rand(2100000000));
1.284 albertel 680: $env{'form.rndseed'}=$rndseed;
681: delete($env{'form.resetdata'});
682: delete($env{'form.newrandomization'});
1.159 albertel 683: }
1.488 www 684: $rndseed=~s/\,/\:/g;
685: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 686: if (defined($rndseed)) {
687: my ($c1,$c2)=split(/\:/,$rndseed);
688: unless ($c2) { $c2=0; }
689: unless (($c1==int($c1)) && ($c2==int($c2))) {
690: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
691: }
1.187 albertel 692: }
1.247 albertel 693: if ($Apache::lonhomework::history{'resource.CODE'}) {
694: $rndseed=&Apache::lonnet::rndseed();
695: }
1.479 raeburn 696: $set_safespace = 1;
697: } elsif ($questiontype eq 'randomizetry') {
698: if ($target eq 'analyze') {
699: if (defined($env{'form.grade_rndseed'})) {
700: $rndseed = $env{'form.grade_rndseed'};
701: }
702: }
703: unless (($target eq 'analyze') && (defined($rndseed))) {
704: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 705: my $partfortries = $Apache::inputtags::part;
706: if (ref($probpartlist) eq 'ARRAY') {
707: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
708: $partfortries = $probpartlist->[0];
709: }
710: }
711: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 712: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
713: $curr_try ++;
714: }
715: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
716: $rndseed = $1;
717: }
718: if ($curr_try) {
1.528 raeburn 719: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 720: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
721: my $inc = int(($curr_try-1)/$reqtries);
722: $rndseed += $inc;
723: } else {
724: $rndseed += $curr_try;
725: }
726: }
727: }
728: $set_safespace = 1;
1.528 raeburn 729: if ($target eq 'grade') {
730: $Apache::lonhomework::rawrndseed = $rndseed;
731: }
1.479 raeburn 732: }
733: if ($set_safespace) {
734: if ($safeeval) {
735: &Apache::lonxml::debug("Setting rndseed to $rndseed");
736: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
737: }
738: }
739: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
740: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 741: }
742: return $rndseed;
1.105 albertel 743: }
744:
1.268 albertel 745: sub remember_problem_state {
746: return '
1.284 albertel 747: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
748: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
749: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 750: }
751:
1.487 www 752: sub problem_edit_action_button {
753: my ($name,$action,$accesskey,$text,$flag)=@_;
754: my $actionscript="setmode(this.form,'$action')";
755: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
756: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
757: }
758:
1.423 www 759: sub problem_edit_buttons {
1.487 www 760: my ($mode)=@_;
1.535 droeschl 761: # Buttons that save
762: my $result = '<div style="float:right">';
763: if ($mode eq 'editxml') {
764: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
765: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
766: } else {
767: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
768: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
769: }
770: $result.="\n</div>\n";
1.487 www 771: # Buttons that do not save
1.535 droeschl 772: $result .= '<div>'.
1.487 www 773: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
774: if ($mode eq 'editxml') {
775: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
776: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
777: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
778: } else {
779: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
780: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
781: }
782: $result.="\n</div>";
783: return $result;
1.423 www 784: }
785:
786: sub problem_edit_header {
1.527 golterma 787: my ($mode)=@_;
788: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 789: &remember_problem_state('edit').'
1.527 golterma 790: <div class="LC_edit_problem_header">
791: <div class="LC_edit_problem_header_title">
792: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
793: </div><div class="LC_edit_actionbar" id="actionbar">'.
794: '<input type="hidden" name="problemmode" value="saveedit" />'.
795: &problem_edit_buttons();
796:
1.535 droeschl 797: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 798: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
799: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
800:
801: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
802: <script type="text/javascript">
803: // unless internet explorer
804: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
805: $(document).ready(
806: function() {
807: $(\'.LC_edit_actionbar\').scrollToFixed(
808: {
809: fixed: function(){
1.535 droeschl 810: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
811: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 812: }
813: }
814: );
815: }
816: );
817: }
818: </script>
819: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
820: return $return;
1.105 albertel 821: }
822:
823: sub problem_edit_footer {
1.527 golterma 824: my $resource = $env{'request.ambiguous'};
1.412 albertel 825: return '</td></tr></table><br />
826: <div class="LC_edit_problem_footer">
1.453 bisitz 827: <hr />'.
1.423 www 828: &problem_edit_buttons().'
1.459 bisitz 829: <hr style="clear:both;" />
1.527 golterma 830: <script type="text/javascript">
831: restoreState("'.$resource.'");
832: restoreScrollPosition("'.$resource.'");
833: </script>
1.412 albertel 834: </div>
835: '.
1.342 albertel 836: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 837: }
838:
1.235 albertel 839: sub option {
840: my ($value,$name) = @_;
841: my $result ="<option value='".$value."' ";
1.284 albertel 842: if ($env{'form.'.$name} eq $value) {
1.235 albertel 843: $result.=" selected='on' ";
844: }
845: $result.='>';
846: return $result;
847: }
848:
1.105 albertel 849: sub problem_web_to_edit_header {
1.159 albertel 850: my ($rndseed)=@_;
1.406 albertel 851: my $result .= '<div class="LC_edit_problem_header">';
852:
853: if (!$Apache::lonhomework::parsing_a_task) {
854: $result .=
855: '<div class="LC_edit_problem_header_title">'.
856: &mt('Problem Testing').
857: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
858: '</div>';
859: } else {
860: $result .=
861: '<div class="LC_edit_problem_header_title">'.
862: &mt('Task Testing').
863: '</div>';
864: }
865:
1.315 albertel 866: my $show_all_foils_text =
867: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 868: &mt('Show All Instances')
869: : &mt('Show All Foils');
1.315 albertel 870:
1.452 bisitz 871: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
872: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 873: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 874: $show_all.= ' /> '.$show_all_foils_text
875: .'</label></span>';
1.406 albertel 876:
877:
1.384 albertel 878:
1.406 albertel 879: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 880: if (!$Apache::lonhomework::parsing_a_task) {
881: $result.="
1.406 albertel 882: <div class='LC_edit_problem_header_row1'>
883: <span class=\"LC_nobreak\">
1.405 albertel 884: ".&mt("Problem Status:")."
1.235 albertel 885: <select name='problemstate'>
1.270 albertel 886: <option value=''></option>
1.235 albertel 887: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
888: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
889: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
890: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
891: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
892: </select>
1.406 albertel 893: </span>
894: <span class=\"LC_nobreak\">
1.405 albertel 895: ".&mt("Problem Type:")."
1.235 albertel 896: <select name='problemtype'>
1.270 albertel 897: <option value=''></option>
1.509 bisitz 898: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 899: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 900: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 901: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
902: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
903: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 904: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 905: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 906: </select>
1.406 albertel 907: </span>
908: $show_all
909: </div>
910: <div class='LC_edit_problem_header_row2'>
911: <span class=\"LC_nobreak\">
1.405 albertel 912: ".&mt("Feedback Mode:")."
1.235 albertel 913: <select name='problemstatus'>
914: <option value=''></option>
1.242 albertel 915: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 916: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 917: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 918: </select>
1.406 albertel 919: </span>
920: ";
921:
1.376 albertel 922: } elsif ($Apache::lonhomework::parsing_a_task) {
923: $result.="
1.406 albertel 924: <div class='LC_edit_problem_header_row1'>
925: <span class=\"LC_nobreak\">
1.405 albertel 926: ".&mt("Problem Status:")."
1.376 albertel 927: <select name='problemstate'>
928: <option value=''></option>
929: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
930: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
931: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
932: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
933: </select>
1.406 albertel 934: </span>
935: $show_all
936: ";
937: }
938: $result.='
939: <span class="LC_nobreak">
940: '.&mt('Apply style file: ').'
941: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
942: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
943: </span>
1.422 www 944: </div>
945: <div class="LC_edit_problem_header_row1">'.
946: &Apache::lonxml::renderingoptions().'
1.406 albertel 947: </div>
948: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
949: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
950: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
951: </div>
1.453 bisitz 952: <hr />
1.406 albertel 953: <div class="LC_edit_problem_header_randomize_row">
954: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
955: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 956: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 957: $rndseed.'"
958: onchange="javascript:document.lonhomework.changerandseed.click()" />';
959:
960: if (!$Apache::lonhomework::parsing_a_task) {
961: my $numtoanalyze=$env{'form.numtoanalyze'};
962: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 963: $result .= '<span class="LC_nobreak">'.
964: &mt('[_1] for [_2] versions.',
1.416 raeburn 965: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 966: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
967: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 968: $numtoanalyze.'" size="5" />').
969: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
970: '</span>';
971:
1.313 albertel 972: }
1.406 albertel 973:
974: $result.='
975: </div>
1.453 bisitz 976: <hr />
1.447 bisitz 977: <div>';
1.416 raeburn 978: $result.='<input type="hidden" name="problemmode" value="view" />';
979: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
980: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
981: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
982: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 983: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
984: my $uri = $env{'request.uri'};
1.543 damieng 985: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 986: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
987: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
988: }
1.408 albertel 989: $result.='
990: </div>
1.453 bisitz 991: <hr />
1.409 albertel 992: '.&Apache::lonxml::message_location().'
1.406 albertel 993: </div>';
1.159 albertel 994: return $result;
1.48 albertel 995: }
996:
1.65 albertel 997: sub initialize_storage {
1.357 albertel 998: my ($given_symb) = @_;
1.353 albertel 999: undef(%Apache::lonhomework::results);
1000: undef(%Apache::lonhomework::history);
1.357 albertel 1001: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1002: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1003:
1004: # anonymous users (CODEd exams) have no data
1005: if ($name eq 'anonymous'
1006: && !defined($domain)) {
1007: return;
1008: }
1009:
1.333 albertel 1010: if ($env{'request.state'} eq 'construct'
1011: || $symb eq ''
1012: || $Apache::lonhomework::type eq 'practice') {
1013:
1014: my $namespace = $symb || $env{'request.uri'};
1015: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1016: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1017: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1018: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1019: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1020: &Apache::lonxml::debug("Attempt reset");
1021: }
1.159 albertel 1022: %Apache::lonhomework::history=
1.333 albertel 1023: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1024: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1025: &Apache::lonxml::debug("Return message of $temp");
1026: } else {
1027: %Apache::lonhomework::history=
1028: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1029: }
1.353 albertel 1030:
1.159 albertel 1031: #ignore error conditions
1.526 raeburn 1032: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1033: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1034: }
1035:
1.435 jms 1036: =pod
1037:
1038: =item finalize_storage()
1039:
1.524 raeburn 1040: Stores away the result hash to a student's environment;
1.523 raeburn 1041: checks form.grade_ for specific values, otherwise stores
1042: to the running user's environment.
1.524 raeburn 1043:
1044: &check_correctness_changes() is called in two circumstances
1045: in which the results hash is to be stored permanently, for
1046: grading triggered by a student's submission, where feedback on
1047: correctness is to be provided to the student.
1048:
1049: 1. Immediately prior to storing the results hash
1050:
1051: To handle the case where a student's submission (and award) were
1052: stored after history was retrieved in &initialize_storage(), e.g.,
1053: if a student submitted answers in quick succession (e.g., from
1054: multiple tabs). &Apache::inputtags::hidealldata() is called for
1055: any parts with out-of-order storage (i.e., correct then incorrect,
1056: where awarded >= 1 when correct).
1057:
1058: 2. Immediately after storing the results hash
1059:
1060: To handle the case where lond on the student's homeserver returns
1061: delay:N -- where N is the number of transactions between the last
1062: retrieved in &initialize_storage() and the last stored immediately
1063: before permanent storage of the current transaction via
1064: lond::store_handler(). &Apache::grades::makehidden() is called
1065: for any parts with out-of-order storage (i.e., correct then incorrect,
1066: where awarded >= 1 when correct).
1067:
1068: Will call &store_aggregates() to increment totals for attempts,
1069: students, and corrects, if running user has student role.
1070:
1.435 jms 1071: =cut
1072:
1073:
1.65 albertel 1074: sub finalize_storage {
1.357 albertel 1075: my ($given_symb) = @_;
1.159 albertel 1076: my $result;
1.289 albertel 1077: if (%Apache::lonhomework::results) {
1.323 albertel 1078: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1079: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1080: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1081: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1082: if ($env{'request.state'} eq 'construct'
1083: || $symb eq ''
1084: || $Apache::lonhomework::type eq 'practice') {
1085: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1086: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1087: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1088: $namespace,'',$domain,$name);
1.159 albertel 1089: &Apache::lonxml::debug('Construct Store return message:'.$result);
1090: } else {
1.524 raeburn 1091: my ($laststore,$checkedparts,@parts,%postcorrect);
1092: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1093: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1094: (!defined($env{'form.grade_courseid'}))) {
1095: if ($Apache::lonhomework::history{'version'}) {
1096: $laststore = $Apache::lonhomework::history{'version'}.'='.
1097: $Apache::lonhomework::history{'timestamp'};
1098: } else {
1099: $laststore = '0=0';
1100: }
1101: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1102: if ($record{'version'}) {
1103: my ($newversion,$oldversion,$oldtimestamp);
1104: if ($Apache::lonhomework::history{'version'}) {
1105: $oldversion = $Apache::lonhomework::history{'version'};
1106: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1107: } else {
1108: $oldversion = 0;
1109: $oldtimestamp = 0;
1110: }
1111: if ($record{'version'} > $oldversion) {
1112: if ($record{'timestamp'} >= $oldtimestamp) {
1113: $laststore = $record{'version'}.'='.$record{'timestamp'};
1114: $newversion = $record{'version'} + 1;
1115: $checkedparts = 1;
1116: foreach my $key (keys(%Apache::lonhomework::results)) {
1117: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1118: my $part = $1;
1119: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1120: push(@parts,$part);
1121: }
1122: }
1123: }
1124: if (@parts) {
1125: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1126: \%record,\@parts,$newversion,
1127: $oldversion);
1128: if (@parts_to_hide) {
1129: foreach my $part (@parts_to_hide) {
1130: $postcorrect{$part} = 1;
1131: &Apache::inputtags::hidealldata($part);
1132: }
1133: }
1134: }
1135: }
1136: }
1137: }
1138: }
1.159 albertel 1139: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1140: $symb,$courseid,$domain,$name,$laststore);
1141: if ($result =~ /^delay\:(\d+)$/) {
1142: my $numtrans = $1;
1143: my ($oldversion) = split(/=/,$laststore);
1144: if ($numtrans) {
1145: my $newversion = $oldversion + 1 + $numtrans;
1146: my @possparts;
1147: if ($checkedparts) {
1148: foreach my $part (@parts) {
1149: unless ($postcorrect{$part}) {
1150: push(@possparts,$part);
1151: }
1152: }
1153: } else {
1154: foreach my $key (keys(%Apache::lonhomework::results)) {
1155: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1156: my $part = $1;
1157: unless ($postcorrect{$part}) {
1158: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1159: push(@possparts,$part);
1160: }
1161: }
1162: }
1163: }
1164: }
1165: if (@possparts) {
1166: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1167: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1168: \%newrecord,\@possparts,$newversion,
1169: $oldversion);
1170: if (@parts_to_hide) {
1171: my $partslist = join(',',@parts_to_hide);
1172: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1173: }
1174: }
1175: }
1176: }
1.159 albertel 1177: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1178: &store_aggregates($symb,$courseid);
1.159 albertel 1179: }
1.323 albertel 1180: } else {
1181: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1182: }
1.159 albertel 1183: return $result;
1.65 albertel 1184: }
1185:
1.435 jms 1186: =pod
1187:
1.524 raeburn 1188: =item check_correctness_changes()
1189:
1190: For all parts for which current results contain a solved status
1191: of "incorrect_attempted", check if there was a transaction in which
1192: solved was set to "correct_by_student" in the time since the last
1193: transaction (retrieved when &initialize_storage() was called i.e.,
1194: when &start_problem() was called), unless:
1195: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1196: (b) problemstatus is set to no or no_feedback_ever
1197: If such a transaction exists, and did not occur after "reset status"
1198: by a user with grading privileges, then the current transaction is an
1199: example of an out-of-order transaction (i.e., incorrect occurring after
1200: correct). Accordingly, the current transaction should be hidden.
1201:
1202: =cut
1203:
1204:
1205: sub check_correctness_changes {
1206: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1207: my @parts_to_hide;
1208: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1209: return @parts_to_hide;
1210: }
1211: if (@{$parts}) {
1212: my $usec;
1213: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1214: ($env{'request.course.id'} eq $courseid)) {
1215: $usec = $env{'request.course.sec'};
1216: } else {
1217: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1218: }
1219: foreach my $id (@{$parts}) {
1220: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1221: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1222: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1223: my $reset;
1224: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1225: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1226: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1227: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1228: $reset = 1;
1229: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1230: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1231: unless ($reset) {
1232: push(@parts_to_hide,$id);
1233: last;
1234: }
1235: }
1236: }
1237: }
1238: }
1239: return @parts_to_hide;
1240: }
1241:
1242: =pod
1243:
1.435 jms 1244: item store_aggregates()
1245:
1246: Sends hash of values to be incremented in nohist_resourcetracker.db
1247: for the course. Increments total number of attempts, unique students
1248: and corrects for each part for an instance of a problem, as appropriate.
1249:
1250: =cut
1251:
1.285 raeburn 1252: sub store_aggregates {
1253: my ($symb,$courseid) = @_;
1.479 raeburn 1254: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1255: my @parts;
1.288 albertel 1256: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1257: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1258: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1259: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1260: push(@parts, $1);
1.285 raeburn 1261: }
1262: }
1.286 albertel 1263: foreach my $part (@parts) {
1.470 raeburn 1264: if ($env{'request.role'} =~/^st/) {
1265: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1266: eq 'APPROX_ANS' ||
1267: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1268: eq 'EXACT_ANS') {
1269: $aggregate{$symb."\0".$part."\0correct"} = 1;
1270: }
1271: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1272: $aggregate{$symb."\0".$part."\0users"} = 1;
1273: } else {
1274: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1275: if ($last_reset) {
1276: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1277: $aggregate{$symb."\0".$part."\0users"} = 1;
1278: }
1279: }
1280: }
1281: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1282: }
1.470 raeburn 1283: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1284: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1285: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1286: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1287: $randtrycounter{$symb."\0".$part} = 1;
1288: } else {
1289: $anoncounter{$symb."\0".$part} = 1;
1290: }
1.545 raeburn 1291: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1292: if ($needsrelease) {
1.470 raeburn 1293: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1294: if ($curr_required eq '') {
1.471 raeburn 1295: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1296: } else {
1297: my ($currmajor,$currminor) = split(/\./,$curr_required);
1298: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1299: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1300: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1301: }
1.292 raeburn 1302: }
1303: }
1.285 raeburn 1304: }
1305: }
1.526 raeburn 1306: if (keys(%aggregate) > 0) {
1.289 albertel 1307: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1308: $cdomain,$cname);
1309: }
1.472 raeburn 1310: if (keys(%anoncounter) > 0) {
1.481 raeburn 1311: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1312: $cdomain,$cname);
1.472 raeburn 1313: }
1.479 raeburn 1314: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1315: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1316: $cdomain,$cname);
1.479 raeburn 1317: }
1.292 raeburn 1318: }
1.289 albertel 1319:
1.65 albertel 1320: sub checkout_msg {
1.211 albertel 1321: my %lt=&Apache::lonlocal::texthash(
1322: 'resource'=>'The resource needs to be checked out',
1323: '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.',
1324: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1325: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1326: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1327: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1328: return (<<ENDCHECKOUT);
1.211 albertel 1329: <h2>$lt{'resource'}</h2>
1330: <p>$lt{'id_expln'}</p>
1.449 bisitz 1331: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1332: <form name="checkout" method="post" action="$uri">
1.91 albertel 1333: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1334: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1335: </form>
1336: ENDCHECKOUT
1337: }
1338:
1.252 albertel 1339: sub firstaccess_msg {
1.253 albertel 1340: my ($time,$symb)=@_;
1.414 albertel 1341: my $result;
1342: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1343: if ($interval[1] eq 'map') {
1344: my ($map)=&Apache::lonnet::decode_symb($symb);
1345: my $foldertitle=&Apache::lonnet::gettitle($map);
1346:
1347: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1348: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1349: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1350: ,$foldertitle,$time)."</p>";
1.414 albertel 1351: } elsif ($interval[1] eq 'course') {
1352: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1353: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1354: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1355: ,$course,$time)."</p>";
1.414 albertel 1356: } else {
1357: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1358: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1359: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1360: ,$title,$time)."</p>";
1.414 albertel 1361: }
1.352 albertel 1362: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1363: my $buttontext = &mt('Show Resource');
1364: my $timertext = &mt('Start Timer?');
1.414 albertel 1365: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1366: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1367: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1368: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1369: </form>
1370: ENDCHECKOUT
1.414 albertel 1371: return $result;
1.252 albertel 1372: }
1373:
1.204 albertel 1374: sub init_problem_globals {
1375: my ($type)=@_;
1376: #initialize globals
1.308 foxr 1377: # For problems, we start out in part 0 (outside a <part> tag).
1378: # and part 0 is used to describe the main body of the <problem>
1379: #
1.204 albertel 1380: if ($type eq 'problem') {
1381: $Apache::inputtags::part='0';
1382: @Apache::inputtags::partlist=('0');
1.405 albertel 1383: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1384: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1385:
1.266 albertel 1386: } elsif ($type eq 'library') {
1.204 albertel 1387: $Apache::inputtags::part='';
1388: @Apache::inputtags::partlist=();
1.405 albertel 1389: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1390: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1391:
1.304 albertel 1392: } elsif ($type eq 'Task') {
1393: $Apache::inputtags::part='0';
1394: @Apache::inputtags::partlist=('0');
1.405 albertel 1395: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1396: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1397: }
1.477 www 1398: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1399: @Apache::inputtags::responselist = ();
1400: @Apache::inputtags::importlist = ();
1401: @Apache::inputtags::previous=();
1402: @Apache::inputtags::previous_version=();
1.536 raeburn 1403: $Apache::inputtags::leniency='';
1.204 albertel 1404: $Apache::structuretags::printanswer='No';
1405: @Apache::structuretags::whileconds=();
1406: @Apache::structuretags::whilebody=();
1407: @Apache::structuretags::whileline=();
1408: $Apache::lonhomework::scantronmode=0;
1409: undef($Apache::lonhomework::name);
1.358 albertel 1410: undef($Apache::lonhomework::default_type);
1411: undef($Apache::lonhomework::type);
1.204 albertel 1412: }
1413:
1414: sub reset_problem_globals {
1415: my ($type)=@_;
1416: undef(%Apache::lonhomework::history);
1417: undef(%Apache::lonhomework::results);
1418: undef($Apache::inputtags::part);
1.536 raeburn 1419: undef($Apache::inputtags::leniency);
1.498 raeburn 1420: if ($type eq 'Task') {
1421: undef($Apache::inputtags::slot_name);
1.528 raeburn 1422: } elsif ($type eq 'problem') {
1423: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1424: }
1.208 albertel 1425: #don't undef this, lonhomework.pm takes care of this, we use this to
1426: #detect if we try to do 2 problems in one file
1427: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1428: undef($Apache::lonhomework::name);
1.358 albertel 1429: undef($Apache::lonhomework::default_type);
1430: undef($Apache::lonhomework::type);
1431: undef($Apache::lonhomework::scantronmode);
1432: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1433: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1434: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1435: }
1436:
1.241 albertel 1437: sub set_problem_state {
1.240 albertel 1438: my ($part)=@_;
1.284 albertel 1439: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1440: $Apache::lonhomework::history{"resource.$part.solved"}=
1441: 'correct_by_student';
1442: }
1443: }
1444:
1.241 albertel 1445: sub get_problem_status {
1446: my ($part)=@_;
1.267 albertel 1447: my $problem_status;
1.284 albertel 1448: if ($env{'request.state'} eq 'construct' &&
1449: defined($env{'form.problemstatus'})) {
1450: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1451: } else {
1452: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1453: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1454: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1455: }
1456: return $problem_status;
1457: }
1458:
1.9 albertel 1459: sub start_problem {
1.326 albertel 1460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1461:
1.311 foxr 1462: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1463: if (!$Apache::lonxml::metamode) {
1464: &Apache::lonxml::startredirection();
1465: }
1.311 foxr 1466:
1.308 foxr 1467: # Problems don't nest and we don't allow more than one <problem> in
1468: # a .problem file.
1469: #
1.184 albertel 1470: if ( $Apache::inputtags::part ne '' ||
1471: $Apache::lonhomework::parsing_a_problem) {
1472: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1473: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1474: return '';
1475: }
1.184 albertel 1476:
1477: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1478: &init_problem_globals('problem');
1.166 albertel 1479:
1.284 albertel 1480: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1481: $Apache::lonhomework::scantronmode=1;
1482: }
1.161 albertel 1483:
1.159 albertel 1484: if ($target ne 'analyze') {
1.415 raeburn 1485: my $type = &Apache::lonnet::EXT('resource.0.type');
1486: $Apache::lonhomework::type=$type;
1.284 albertel 1487: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1488: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1489: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1490: }
1.332 albertel 1491: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1492: }
1.164 albertel 1493: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1494: my $uri=$env{'request.uri'};
1.159 albertel 1495: if ($uri=~/\.(\w+)$/) {
1496: $Apache::lonhomework::type=$1;
1497: &Apache::lonxml::debug("Using type of $1");
1498: } else {
1499: $Apache::lonhomework::type='problem';
1500: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1501: }
1.87 albertel 1502: }
1.301 albertel 1503: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1504:
1.363 albertel 1505: &initialize_storage();
1.389 albertel 1506: if ($target ne 'analyze'
1507: && $env{'request.state'} eq 'construct') {
1508: &set_problem_state('0');
1509: }
1510:
1.366 albertel 1511: if ($target eq 'web') {
1512: &Apache::lonxml::debug(" grading history ");
1513: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1514: }
1.363 albertel 1515:
1.159 albertel 1516: #added vars to the scripting enviroment
1.213 albertel 1517: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1518: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1519: &Apache::run::run($expression,$safeeval);
1.159 albertel 1520: my $status;
1521: my $accessmsg;
1.508 raeburn 1522: my $resource_due;
1.540 raeburn 1523: my $ipused;
1.159 albertel 1524:
1.343 albertel 1525: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1526: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1527:
1528: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1529: $target eq 'tex') {
1530: if ($env{'form.markaccess'}) {
1531: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1532: my ($timelimit) = split(/_/,$interval[0]);
1533: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1534: }
1535:
1.540 raeburn 1536: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1.506 raeburn 1537: &Apache::lonhomework::check_slot_access('0','problem');
1538: push (@Apache::inputtags::status,$status);
1539: }
1540:
1.354 albertel 1541: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1542: || $target eq 'edit') {
1.528 raeburn 1543: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1544: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1545: $name);
1.528 raeburn 1546: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1547: my ($symb)= &Apache::lonnet::whichuser();
1548: my $navmap = Apache::lonnavmaps::navmap->new();
1549: if (ref($navmap)) {
1550: my $res = $navmap->getBySymb($symb);
1551: if (ref($res)) {
1552: $probpartlist = $res->parts();
1553: }
1554: }
1.350 albertel 1555: }
1556:
1.284 albertel 1557: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1558:
1.479 raeburn 1559: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1560: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1561: $target eq 'tex') {
1.479 raeburn 1562:
1.159 albertel 1563: #handle rand seed in construction space
1.528 raeburn 1564: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1565: if (($target eq 'grade') && &Apache::response::submitted()) {
1566: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1567: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1568: } else {
1569: my @parts;
1570: if (ref($probpartlist) eq 'ARRAY') {
1571: @parts = @{$probpartlist};
1572: }
1573: unless (@parts) {
1.529 raeburn 1574: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1575: }
1576: }
1577: }
1.367 albertel 1578: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1579:
1.333 albertel 1580: if ($env{'request.state'} ne "construct" &&
1581: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1582: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1583: $rndseed.'" />'.
1584: '<input type="submit" name="resetdata"
1585: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1586: if (exists($env{'form.username'})) {
1587: $form_tag_start.=
1.164 albertel 1588: '<input type="hidden" name="username"
1.284 albertel 1589: value="'.$env{'form.username'}.'" />';
1.334 albertel 1590: }
1.462 raeburn 1591: if ($env{'request.role.adv'}) {
1592: $form_tag_start.= ' <label class="LC_nobreak">'
1593: .'<input type="checkbox" name="showallfoils"';
1594: if (defined($env{'form.showallfoils'})) {
1595: $form_tag_start.=' checked="checked"';
1596: }
1597: $form_tag_start.= ' /> '
1598: .&mt('Show All Foils')
1599: .'</label>';
1600: }
1.417 www 1601: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1602: $form_tag_start.=&practice_problem_header();
1.417 www 1603: }
1.462 raeburn 1604: $form_tag_start.='<hr />';
1.479 raeburn 1605: } elsif (($env{'request.state'} ne "construct") &&
1606: ($Apache::lonhomework::type eq 'randomizetry') &&
1.546 raeburn 1607: ($status eq 'CAN_ANSWER') &&
1608: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement')) {
1.548 ! raeburn 1609: # "New Problem Variation Each Try" header suppressed for Placement Tests.
1.479 raeburn 1610: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1611: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1612: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1613: }
1.324 albertel 1614:
1.159 albertel 1615: my $expression='$external::datestatus="'.$status.'";';
1616: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1617: &Apache::run::run($expression,$safeeval);
1618: &Apache::lonxml::debug("Got $status");
1.324 albertel 1619:
1.159 albertel 1620: if (( $status eq 'CLOSED' ) ||
1621: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1622: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1623: ( $status eq 'BANNED') ||
1.216 albertel 1624: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1625: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1626: ( $status eq 'NOTRESERVABLE') ||
1627: ( $status eq 'RESERVABLE') ||
1628: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1629: ( $status eq 'INVALID_ACCESS') ||
1630: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1631: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1632: $style);
1.159 albertel 1633: if ( $target eq "web" ) {
1.343 albertel 1634: my $msg;
1.159 albertel 1635: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1636: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1637: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1638: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1639: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1640: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1641: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1642: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1643: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1644: }
1.216 albertel 1645: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1646: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1647: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1648: $msg.=&checkout_msg();
1.252 albertel 1649: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1650: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1651: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1652: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1653: } elsif ($status eq 'RESERVABLE') {
1654: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1655: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1656: '<br />'.
1657: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1658: } elsif ($status eq 'RESERVABLE_LATER') {
1659: $msg.=&mt('Window to make a reservation will open [_1].',
1660: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1661: } elsif ($status eq 'NOTRESERVABLE') {
1662: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1663: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1664: if ($ipused) {
1665: $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");
1666: } else {
1667: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1668: &mt('Somebody else has already used this particular computer for that purpose.');
1669: }
1670: }
1.159 albertel 1671: $result.=$msg.'<br />';
1672: } elsif ($target eq 'tex') {
1.332 albertel 1673: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1674: : '\begin{minipage}{\textwidth}';
1.443 foxr 1675: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1676: $startminipage.'\vskip 0 mm';
1.159 albertel 1677: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1678: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1679: } else {
1.211 albertel 1680: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1681: }
1682: }
1.324 albertel 1683: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1684: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1685: $style);
1.324 albertel 1686: if ($target eq 'web') {
1.375 albertel 1687: $result .=
1688: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1689: } elsif ($target eq 'grade') {
1.540 raeburn 1690: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1691: 'problem');
1692: if ($checkinresult = /^error:/) {
1693: $result .= 'error';
1694: }
1.324 albertel 1695: }
1.159 albertel 1696: } elsif ($target eq 'web') {
1.508 raeburn 1697: if ($status eq 'CAN_ANSWER') {
1698: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1699: if ($slot_name ne '') {
1700: my $checked_in =
1701: $Apache::lonhomework::history{'resource.0.checkedin'};
1702: if ($checked_in eq '') {
1703: # unproctored slot access, self checkin
1.540 raeburn 1704: my $needsiptied;
1705: if (ref($slot)) {
1706: $needsiptied = $slot->{'iptied'};
1707: }
1708: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1709: $slot_name,$needsiptied);
1710: if ($check =~ /^error: /) {
1711: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1712: } else {
1713: $checked_in =
1714: $Apache::lonhomework::results{"resource.0.checkedin"};
1715: }
1.508 raeburn 1716: }
1717: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1718: if ($slot->{'starttime'} < time()) {
1719: if (!$resource_due) {
1720: $resource_due = $slot->{'endtime'};
1721: } elsif ($slot->{'endtime'} < $resource_due) {
1722: $resource_due = $slot->{'endtime'};
1723: }
1724: }
1725: }
1726: }
1727: if ($resource_due) {
1728: my $time_left = $resource_due - time();
1729: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1730: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1731: }
1732: }
1733: }
1.368 albertel 1734: $result.="\n $form_tag_start \t".
1.227 albertel 1735: '<input type="hidden" name="submitted" value="yes" />';
1736: # create a page header and exit
1.284 albertel 1737: if ($env{'request.state'} eq "construct") {
1.544 damieng 1738: if ($env{'form.inhibitmenu'} eq 'yes') {
1739: # error messages can be useful in any case
1740: $result.= &Apache::lonxml::message_location();
1741: } else {
1.542 raeburn 1742: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1743: }
1.428 raeburn 1744: if ($Apache::lonhomework::type eq 'practice') {
1745: $result.= '<input type="submit" name="resetdata" '.
1746: 'value="'.&mt('New Problem Variation').'" />'.
1747: &practice_problem_header().'<hr />';
1748: }
1.227 albertel 1749: }
1750: # if we are viewing someone else preserve that info
1.284 albertel 1751: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1752: foreach my $field ('symb','courseid','domain','username') {
1753: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1754: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1755: }
1.479 raeburn 1756: foreach my $field ('trial','questiontype') {
1757: if ($env{"form.grade_$field"} ne '') {
1758: $result .= '<input type="hidden" name="grade_'.$field.
1759: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1760: }
1761: }
1.159 albertel 1762: }
1.490 raeburn 1763: if ($env{'form.grade_imsexport'}) {
1764: $result = '';
1765: }
1.159 albertel 1766: } elsif ($target eq 'tex') {
1.319 foxr 1767: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1768: $result .= &select_metadata_hyphenation();
1769:
1.319 foxr 1770:
1.99 sakharuk 1771: }
1.159 albertel 1772: } elsif ($target eq 'edit') {
1.343 albertel 1773: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1774: $Apache::lonxml::warnings_error_header=
1775: &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 1776: my $temp=&Apache::edit::insertlist($target,$token);
1777: $result.=$temp;
1778: } elsif ($target eq 'modified') {
1779: $result=$token->[4];
1780: } else {
1781: # page_start returned a starting result, delete it if we don't need it
1782: $result = '';
1.99 sakharuk 1783: }
1.159 albertel 1784: return $result;
1.9 albertel 1785: }
1786:
1787: sub end_problem {
1.159 albertel 1788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1789: my $result;
1.310 foxr 1790:
1.321 albertel 1791: if (!$Apache::lonxml::metamode) {
1792: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1793: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1794: }
1.319 foxr 1795:
1796: if ($target eq 'tex') {
1.321 albertel 1797: # Figure out the front matter and replace the
1798: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1799: # this in end_problem because whether or not we display due
1800: # dates depends on whether due dates have already been
1801: # displayed in the problem parts.
1802:
1.319 foxr 1803: my $frontmatter = '';
1804: my $startminipage = '';
1805: if (not $env{'form.problem_split'}=~/yes/) {
1806: $startminipage = '\begin{minipage}{\textwidth}';
1807: }
1808: my $id = $Apache::inputtags::part;
1809: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1810: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1811: my @packages = split(/,/,$packages);
1.319 foxr 1812: my $allow_print_points = 0;
1813: foreach my $partial_key (@packages) {
1814: if ($partial_key=~m/^part_0$/) {
1815: $allow_print_points=1;
1816: }
1817: }
1818: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1819: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1820: if (lc($env{'course.'.$env{'request.course.id'}.
1821: '.disableexampointprint'}) eq 'yes') {
1822: $allow_print_points=0;
1823: }
1824: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1825: 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 1826: &clear_required_languages();
1.319 foxr 1827: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1828: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1829:
1830: # Figure out what the due date is and if we need to print
1831: # it in the problem header. We have been logging the
1832: # last due date written to file.
1833:
1834: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1835: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1836: my $duedate_text = &mt('Due date: [_1]'
1837: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1838: my $temp_file;
1839: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1840:
1841: # Figure out what the last printed due date is or set it
1842: # to the epoch if no duedates have been printed.
1843:
1844: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1845: if (-e $filename) {
1846: $temp_file = Apache::File->new($filename);
1847: my @due_file = <$temp_file>;
1848: $due_file_content = $due_file[$#due_file];
1849: chomp $due_file_content;
1850: }
1851:
1852: # We display the due date iff it is not the same as the last
1853: # duedate in problem header ($due_file_content), and
1854: # none of our parts displayed a duedate.
1855: #
1856: my $parts_with_displayduedate;
1857: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1858: $parts_with_displayduedate =
1859: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1860: } else {
1861: $parts_with_displayduedate = 0;
1862: }
1863: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1864: $temp_file = Apache::File->new('>'.$filename);
1865: print $temp_file "$duetime\n";
1866: if (not $env{'request.symb'} =~ m/\.page_/) {
1867: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1868: $frontmatter .= $begin_doc.
1.448 bisitz 1869: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1870: } else {
1871: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1872: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1873: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1874: }
1.319 foxr 1875: }
1876: } else {
1.448 bisitz 1877: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1878: }
1879: } else {
1880: if (not $env{'request.symb'} =~ m/\.page_/) {
1881: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1882: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1883: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1884: }
1.319 foxr 1885: } else {
1.381 albertel 1886: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1887: }
1888: }
1889: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1890: }
1891:
1.159 albertel 1892: my $status=$Apache::inputtags::status['-1'];
1893: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1894: $target eq 'tex') {
1.249 albertel 1895: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1896: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1897: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1898: &Apache::inputtags::grade;
1.324 albertel 1899: } elsif ($status eq 'NEEDS_CHECKIN') {
1900: # no need to grade, and don't want to hide data
1.249 albertel 1901: } else {
1902: # move any submission data to .hidden
1903: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1904: }
1.159 albertel 1905: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1906: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1907: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1908: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1909: # if part is zero, no <part>s existed, so we need show the current
1910: # grading status
1911: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1912: $result.= $gradestatus;
1913: }
1914: if (
1.284 albertel 1915: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1916: ($target eq 'answer') || ($target eq 'tex')
1917: ) {
1.490 raeburn 1918: if (($target ne 'tex') &&
1919: ($env{'form.answer_output_mode'} ne 'tex') &&
1920: (!$env{'form.grade_imsexport'})) {
1.254 www 1921: $result.="</form>";
1.159 albertel 1922: }
1923: if ($target eq 'web') {
1.507 raeburn 1924: #
1925: # Closing </body></html> not added by end_page().
1926: # Added separately at end of this routine, after added
1927: # <script></script> so document will be valid xhtml.
1928: #
1.546 raeburn 1929: my $showdisc = 1;
1.547 raeburn 1930: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1931: (!$env{'request.role.adv'})) {
1932: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 1933: $showdisc = 0;
1.547 raeburn 1934: my ($symb)= &Apache::lonnet::whichuser();
1935: if ($symb) {
1936: my $navmap = Apache::lonnavmaps::navmap->new();
1937: if (ref($navmap)) {
1938: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
1939: # For Placement Tests test status is displayed if this is the last resource in the course
1940: # and there are no tries left;
1941: unless ($hastries) {
1942: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
1943: my ($score,$incomplete) =
1944: &Apache::lonplacementtest::check_completion(undef,undef,1);
1945: if (!$incomplete) {
1946: $result .= &Apache::lonplacementtest::showresult(1,1);
1947: } elsif ($incomplete < 100) {
1948: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
1949: }
1950: } else {
1951: # For Placement Tests score is displayed if test has just been completed
1952: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
1953: if (!$incomplete) {
1954: $result.= &Apache::lonplacementtest::showresult(1,1);
1955: }
1956: }
1957: }
1958: }
1959: }
1.546 raeburn 1960: }
1961: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 1962: 'notbody' => 1});
1.159 albertel 1963: } elsif ($target eq 'tex') {
1.178 sakharuk 1964: my $endminipage = '';
1.284 albertel 1965: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1966: $endminipage = '\end{minipage}';
1967: }
1.284 albertel 1968: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1969: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1970: } else {
1.262 sakharuk 1971: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1972: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1973: $result .= $endminipage.'\end{document} ';
1974: } else {
1.382 albertel 1975: $result .= $endminipage;
1.262 sakharuk 1976: }
1.159 albertel 1977: }
1978: }
1979: }
1.476 www 1980: if ($target eq 'web') {
1981: $result.=&Apache::functionplotresponse::init_script();
1982: }
1.159 albertel 1983: if ($target eq 'grade') {
1984: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1985: &finalize_storage();
1986: }
1.284 albertel 1987: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1988: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1989: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1990: # normally we get it from above, but in CSTR
1.172 albertel 1991: # we always show answer mode too.
1.159 albertel 1992: }
1993: } elsif ($target eq 'meta') {
1994: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1995: @Apache::inputtags::response=();
1.159 albertel 1996: $result=&Apache::response::mandatory_part_meta;
1997: }
1.215 albertel 1998: $result.=&Apache::response::meta_part_order();
1.258 albertel 1999: $result.=&Apache::response::meta_response_order();
1.159 albertel 2000: } elsif ($target eq 'edit') {
2001: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2002: $result .= &problem_edit_footer();
1.320 albertel 2003: } elsif ($target eq 'modified') {
2004: $result .= $token->[2];
1.159 albertel 2005: }
1.155 albertel 2006:
1.284 albertel 2007: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2008: &Apache::inputtags::check_for_duplicate_ids();
2009: }
1.204 albertel 2010:
2011: &reset_problem_globals('problem');
1.159 albertel 2012:
1.502 foxr 2013: #
2014: # This shouild be just above the return so that the
2015: # time put in the javascript is as late as possible in the
2016: # computation:
2017: #
2018: if ($target eq 'web') {
2019: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2020: #
2021: # Closing tags delayed so any <script></script> tags
2022: # not in head can appear inside body, for valid xhtml.
2023: #
2024: $result .= "</body>\n</html>";
1.502 foxr 2025: }
1.159 albertel 2026: return $result;
1.48 albertel 2027: }
2028:
1.108 albertel 2029:
1.48 albertel 2030: sub start_library {
1.159 albertel 2031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2032: my ($result,$form_tag_start);
1.371 albertel 2033: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2034: &init_problem_globals('library');
2035: $Apache::lonhomework::type='problem';
2036: }
1.159 albertel 2037: if ($target eq 'edit') {
1.343 albertel 2038: ($result,$form_tag_start)=
2039: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2040: 'Edit');
2041: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2042: my $temp=&Apache::edit::insertlist($target,$token);
2043: $result.=$temp;
2044: } elsif ($target eq 'modified') {
2045: $result=$token->[4];
1.340 albertel 2046: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2047: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2048: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2049: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2050: ($result,$form_tag_start)=
2051: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2052: $name);
1.479 raeburn 2053: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2054: $result.=" \n $form_tag_start".
1.159 albertel 2055: '<input type="hidden" name="submitted" value="yes" />';
2056: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2057: if ($Apache::lonhomework::type eq 'practice') {
2058: $result.= '<input type="submit" name="resetdata" '.
2059: 'value="'.&mt('New Problem Variation').'" />'.
2060: &practice_problem_header().'<hr />';
2061: }
1.159 albertel 2062: }
2063: return $result;
1.48 albertel 2064: }
2065:
2066: sub end_library {
1.159 albertel 2067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2068: my $result='';
2069: if ($target eq 'edit') {
2070: $result=&problem_edit_footer();
1.371 albertel 2071: } elsif ($target eq 'web'
2072: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2073: && $env{'request.state'} eq "construct") {
1.349 albertel 2074: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2075: }
1.371 albertel 2076: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2077: &reset_problem_globals('library');
2078: }
1.159 albertel 2079: return $result;
1.197 www 2080: }
2081:
2082: sub start_definetag {
1.326 albertel 2083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2084:
2085: my $result;
2086:
2087: my $name = $token->[2]->{'name'};
1.326 albertel 2088: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2089: if ($target eq 'web') {
2090: if ($name=~/^\//) {
2091: $result=
2092: '<br /><table class="LC_sty_end"><tr><th>'.
2093: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2094: } else {
2095: $result=
2096: '<br /><table class="LC_sty_begin"><tr><th>'.
2097: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2098: }
2099: $skip = &HTML::Entities::encode($skip, '<>&"');
2100: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2101: }
2102: return $result;
2103: }
2104:
2105: sub end_definetag {
2106: return '';
1.1 albertel 2107: }
2108:
2109: sub start_block {
1.201 albertel 2110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2111:
2112: my $result;
1.1 albertel 2113:
1.339 albertel 2114: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2115: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2116: my $code = $token->[2]->{'condition'};
1.385 albertel 2117: if (defined($code) && $code ne '') {
1.137 albertel 2118: if (!$Apache::lonxml::default_homework_loaded) {
2119: &Apache::lonxml::default_homework_load($safeeval);
2120: }
1.131 albertel 2121: $result = &Apache::run::run($code,$safeeval);
2122: &Apache::lonxml::debug("block :$code: returned :$result:");
2123: } else {
2124: $result='1';
2125: }
2126: if ( ! $result ) {
1.201 albertel 2127: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2128: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2129: }
2130: $result='';
2131: } elsif ($target eq 'edit') {
2132: $result .=&Apache::edit::tag_start($target,$token);
2133: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2134: $token,40);
2135: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2136: } elsif ($target eq 'modified') {
2137: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2138: $safeeval,'condition');
2139: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2140: }
1.131 albertel 2141: return $result;
1.1 albertel 2142: }
2143:
2144: sub end_block {
1.167 www 2145: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2146: my $result;
2147: if ($target eq "edit") {
2148: $result.= &Apache::edit::tag_end($target,$token,'');
2149: }
2150: return $result;
2151: }
1.500 foxr 2152: #
2153: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2154: # ...
2155: # </languageblock>
2156: #
2157: # This declares the intent to provide content that can be rendered in the
2158: # set of languages in the include specificatino but not in the exclude
2159: # specification. If a currently preferred language is in the include list
2160: # the content in the <languageblock>...</languageblock> is rendered
2161: # If the currently preferred language is in the exclude list,
2162: # the content in the <languageblock>..></languageblock is not rendered.
2163: #
2164: # Pathalogical case handling:
2165: # - Include specified, without the preferred language but exclude specified
2166: # also without the preferred langauge results in rendering the block.
2167: # - Exclude specified without include and excluden not containing a
2168: # preferred language renders the block.
2169: # - Include and exclude both specifying the preferred language does not
2170: # render the block.
2171: # - If neither include/exclude is specified, the block gets rendered.
2172: #
2173: # This tag has no effect when target is in {edit, modified}
2174: #
1.167 www 2175: sub start_languageblock {
1.201 albertel 2176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2177:
1.500 foxr 2178: my $result = '';
1.167 www 2179:
1.339 albertel 2180: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2181: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2182: my $include = $token->[2]->{'include'};
2183: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2184: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2185:
2186: # This should not even happen, since we should at least have the server language
2187:
2188: if (!$preferred_languages[0]) {
2189: $preferred_languages[0]='en';
2190: }
2191:
2192: # Now loop over all languages in order of preference
2193:
2194: my $render;
1.398 www 2195: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2196:
2197: # If neither include/nor exlude is present the block is going
2198: # to get rendered.
2199:
1.399 www 2200: my $found=0;
1.500 foxr 2201: $render=1;
2202:
2203: # If include is specified, don't render the block
2204: # unless the preferred language is included in the set.
2205:
1.398 www 2206: if ($include) {
1.500 foxr 2207: $render=0;
1.398 www 2208: foreach my $included_language (split(/\,/,$include)) {
2209: if ($included_language eq $preferred_language) {
1.500 foxr 2210: $render=1;
1.399 www 2211: $found=1;
1.500 foxr 2212: last; # Only need to find the first.
1.398 www 2213: }
2214: }
2215: }
1.500 foxr 2216: # Do we have an exclude argument?
2217: # If so, and one of the languages matches a preferred language
2218: # inhibit rendering the block. Note that in the pathalogical case the
2219: # author has specified a preferred language in both the include and exclude
2220: # attribte exclude is preferred.
2221:
1.398 www 2222: if ($exclude) {
1.500 foxr 2223: $render=1;
1.398 www 2224: foreach my $excluded_language (split(/\,/,$exclude)) {
2225: if ($excluded_language eq $preferred_language) {
1.500 foxr 2226: $render=0;
1.399 www 2227: $found=1;
1.500 foxr 2228: last; # Only need to find the first.
1.398 www 2229: }
2230: }
2231: }
1.500 foxr 2232: if ($found) {
2233: last; # Done on any match of include or exclude.
2234: }
1.398 www 2235: }
1.500 foxr 2236: # If $render not true skip the entire block until </languageblock>
2237: #
2238:
2239: if ( ! $render ) {
1.201 albertel 2240: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2241: $style);
2242: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2243: }
1.500 foxr 2244: # If $render is true, we've not skipped the contents of the <languageglock>
2245: # and the normal loncapa processing flow will render it as a matter of course.
2246:
1.167 www 2247: } elsif ($target eq 'edit') {
2248: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2249: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2250: $token,40);
1.211 albertel 2251: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2252: $token,40);
2253: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2254: } elsif ($target eq 'modified') {
2255: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2256: $safeeval,'include',
2257: 'exclude');
1.167 www 2258: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2259: }
2260: return $result;
2261: }
2262:
2263: sub end_languageblock {
1.170 www 2264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2265: my $result;
1.201 albertel 2266: if ($target eq "edit") {
1.170 www 2267: $result.= &Apache::edit::tag_end($target,$token,'');
2268: }
2269: return $result;
2270: }
1.500 foxr 2271: # languagblock specific tags:
2272: {
2273: # For chunks of a resource that has translations, this hash contains
2274: # the translations available indexed by language name.
2275: #
2276:
2277: my %available_texts;
1.170 www 2278:
1.500 foxr 2279: # <translated> starts a block of a resource that has multiple translations.
2280: # See the <lang> tag as well.
2281: # When </translated> is encountered if there is a translation for the
2282: # currently preferred language, that is rendered inthe web/tex/webgrade
2283: # targets. Otherwise, the default text is rendered.
2284: #
2285: # Note that <lang> is only registered for the duration of the
2286: # <translated>...</translated> block
2287: #
2288: # Pathalogical case handling:
2289: # - If there is no <lang> that specifies a 'default' and there is no
2290: # translation that matches a preferred language, nothing is rendered.
2291: # - Nested <translated>...</translated> might be linguistically supported by
2292: # XML due to the stack nature of tag registration(?) however the rendered
2293: # output will be incorrect because there is only one %available_texts
2294: # has and end_translated clears it.
2295: # - Material outside of a <lang>...</lang> block within the
2296: # <translated>...<translated> block won't render either e.g.:
2297: # <translated>
2298: # The following will be in your preferred langauge:
2299: # <lang which='en'>
2300: # This section in english
2301: # </lang>
2302: # <lang which='sgeiso'>
2303: # Hier es ist auf Deutsch.
2304: # </lang>
2305: # <lang which='sfriso'>
2306: # En Francais
2307: # </lang>
2308: # </translated>
2309: #
2310: # The introductory text prior to the first <lang> tag is not rendered.
2311: #
1.397 albertel 2312: sub start_translated {
2313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2314: &Apache::lonxml::register('Apache::structuretags',('lang'));
2315: undef(%available_texts);
2316: }
2317:
2318: sub end_translated {
2319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2320: my $result;
2321: #show the translation on viewable targets
2322: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2323: # or non-viewable targets, if it's embedded in something that
2324: # wants the output
2325: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2326: && &Apache::lonxml::in_redirection() ) ) {
2327: my @possibilities = keys(%available_texts);
2328: my $which =
2329: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2330: if ($target eq 'tex') {
2331: $result = &select_hyphenation($which);
2332: }
2333: $result .= $available_texts{$which};
2334: if ($target eq 'tex') {
2335: $result .= &select_metadata_hyphenation(); # Restore original language.
2336: }
1.397 albertel 2337: }
2338: undef(%available_texts);
2339: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2340: return $result;
2341: }
2342:
1.500 foxr 2343: # <lang [which='language-name'] [other='lang1,lang2...']>
2344: # Specifies that the block contained within it is a translation
2345: # for a specific language specified by the 'which' attribute. The
2346: # 'other' attribute can be used by itself or in conjunction with
2347: # which to specify this tag _may_ be used as a translation for some
2348: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2349: # specifying that the block provides a translation for US (primary)
2350: # Canadian, Australian and UK Englush.
2351: #
2352: # Comment: this seems a bit silly why not just support a list of languages
2353: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2354: #
2355: # Effect:
2356: # The material within the <lang>..</lang> block is stored in the
2357: # specified set of $available_texts hash entries, the appropriate one
2358: # is selected at </translated> time.
2359: #
2360: # Pathalogical case handling:
2361: # If a language occurs multiple times within a <translated> block,
2362: # only the last one is rendered e.g.:
2363: #
2364: # <translated>
2365: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2366: # Red green color blindness is quite common affecting about 7.8% of
2367: # the male population, but onloy about .65% of the female population.
2368: # </lang>
2369: # Red green colour blindness is quite common affecting about 7.8% of
2370: # the male population, but onloy about .65% of the female population.
2371: # <lang which='seniso', other='senisoCA,senisoAU'>
2372: # </translated>
2373: #
2374: # renders the correct spelling of color (colour) for people who have specified
2375: # a preferred language that is one of the British Commonwealth languages
2376: # even though those are also listed as valid selections for the US english
2377: # <lang> block.
2378: #
1.397 albertel 2379: sub start_lang {
2380: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2381: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2382: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2383: &Apache::lonxml::startredirection();
2384: }
2385: return '';
2386: }
2387:
2388: sub end_lang {
2389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2390: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2391: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2392: my $result = &Apache::lonxml::endredirection();
2393: my $which = &Apache::lonxml::get_param('which',$parstack,
2394: $safeeval);
1.431 raeburn 2395: if ($which=~/\w/) {
2396: $available_texts{$which} = $result;
2397: }
2398: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2399: $safeeval);
2400: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2401: if ($language=~/\w/) {
2402: $available_texts{$language} = $result;
2403: }
1.427 bisitz 2404: }
2405:
1.397 albertel 2406: }
2407: return '';
2408: }
1.500 foxr 2409: } # end langauge block specific tags.
2410:
1.397 albertel 2411:
1.170 www 2412: sub start_instructorcomment {
1.201 albertel 2413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2414:
2415: my $result;
2416:
1.339 albertel 2417: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2418: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2419: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2420: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2421: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2422: $parser,$style);
1.170 www 2423: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2424: }
2425: $result='';
2426: } elsif ($target eq 'edit') {
2427: $result .=&Apache::edit::tag_start($target,$token);
2428: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2429: }
2430: return $result;
2431: }
2432:
2433: sub end_instructorcomment {
1.159 albertel 2434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2435: my $result;
2436: if ($target eq "edit") {
2437: $result.= &Apache::edit::tag_end($target,$token,'');
2438: }
2439: return $result;
1.4 tsai 2440: }
2441:
2442: sub start_while {
1.326 albertel 2443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2444:
1.160 albertel 2445: my $result;
1.339 albertel 2446: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2447: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2448: my $code = $token->[2]->{'condition'};
1.4 tsai 2449:
1.160 albertel 2450: push( @Apache::structuretags::whileconds, $code);
2451: if (!$Apache::lonxml::default_homework_loaded) {
2452: &Apache::lonxml::default_homework_load($safeeval);
2453: }
2454: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2455: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2456: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2457: push( @Apache::structuretags::whileline, $token->[5]);
2458: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2459: if ( $result ) {
2460: &Apache::lonxml::newparser($parser,\$bodytext);
2461: }
2462: } elsif ($target eq 'edit') {
2463: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2464: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2465: $token,40);
2466: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2467: } elsif ($target eq 'modified') {
2468: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2469: $safeeval,'condition');
2470: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2471: }
1.160 albertel 2472: return $result;
1.4 tsai 2473: }
2474:
2475: sub end_while {
1.159 albertel 2476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2477: my $result;
2478:
1.339 albertel 2479: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2480: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2481: my $code = pop(@Apache::structuretags::whileconds);
2482: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2483: my $line = pop(@Apache::structuretags::whileline);
2484: my $return = &Apache::run::run($code,$safeeval);
2485: my $starttime=time;
2486: my $error=0;
2487: while ($return) {
2488: if (time-$starttime >
2489: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2490: $return = 0; $error=1; next;
1.161 albertel 2491: }
2492: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2493: if ($target eq 'grade' || $target eq 'answer' ||
2494: $target eq 'analyze') {
2495: # grade/answer/analyze should produce no output but if we
2496: # are redirecting, the redirecter should know what to do
2497: # with the output
2498: if (!$Apache::lonxml::redirection) { undef($result); }
2499: }
1.161 albertel 2500: $return = &Apache::run::run($code,$safeeval);
2501: }
1.516 bisitz 2502: if ($error) {
2503: &Apache::lonxml::error(
2504: '<pre>'
2505: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2506: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2507: .&mt('This occurred while running <while> on line [_1].',
2508: $line)
2509: .'</pre>');
2510: }
1.160 albertel 2511: } elsif ($target eq "edit") {
2512: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2513: }
1.160 albertel 2514: return $result;
1.1 albertel 2515: }
1.6 tsai 2516:
1.160 albertel 2517: # <randomlist show="1">
1.6 tsai 2518: # <tag1>..</tag1>
2519: # <tag2>..</tag2>
2520: # <tag3>..</tag3>
1.160 albertel 2521: # ...
1.6 tsai 2522: # </randomlist>
2523: sub start_randomlist {
1.326 albertel 2524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2525: my $result;
1.339 albertel 2526: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2527: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2528: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2529: my $b_parser= HTML::LCParser->new(\$body);
2530: $b_parser->xml_mode(1);
2531: $b_parser->marked_sections(1);
1.159 albertel 2532: my $b_tok;
2533: my @randomlist;
2534: my $list_item;
2535: while($b_tok = $b_parser->get_token() ) {
2536: if($b_tok->[0] eq 'S') { # start tag
2537: # get content of the tag until matching end tag
2538: # get all text upto the matching tag
2539: # and push the content into @randomlist
2540: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2541: $b_parser);
2542: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2543: push(@randomlist,$list_item);
2544: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2545: # $list_item</b>";
2546: }
2547: if($b_tok->[0] eq 'T') { # text
2548: # what to do with text in between tags?
2549: # print "<b>TEXT $b_tok->[1]</b><br />";
2550: }
2551: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2552: # print "<b>END-TAG $b_tok->[1]</b><br />";
2553: # }
2554: }
1.303 albertel 2555: if (@randomlist) {
2556: my @idx_arr = (0 .. $#randomlist);
2557: &Apache::structuretags::shuffle(\@idx_arr);
2558: my $bodytext = '';
2559: my $show=$#randomlist;
2560: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2561: $showarg--;
2562: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2563: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2564: my @currlist;
2565: my $part = $Apache::inputtags::part;
2566: if ($part ne '') {
2567: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2568: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2569: if (!(grep(/^\Q$part\E$/,@currlist))) {
2570: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2571: }
2572: } else {
2573: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2574: }
2575: }
2576: }
1.526 raeburn 2577: for my $i (0 .. $show) {
2578: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2579: }
2580: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2581: }
2582: } elsif ($target eq 'edit' ) {
2583: $result .=&Apache::edit::tag_start($target,$token);
2584: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2585: $token,5);
2586: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2587: } elsif ($target eq 'modified' ) {
2588: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2589: $safeeval,'show');
2590: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2591: }
2592: return $result;
1.7 tsai 2593: }
2594:
2595: sub shuffle {
2596: my $a=shift;
2597: my $i;
1.303 albertel 2598: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2599: &Apache::response::pushrandomnumber();
1.159 albertel 2600: for($i=@$a;--$i;) {
2601: my $j=int(&Math::Random::random_uniform() * ($i+1));
2602: next if $i == $j;
2603: @$a[$i,$j] = @$a[$j,$i];
2604: }
1.251 albertel 2605: &Apache::response::poprandomnumber();
1.7 tsai 2606: }
1.6 tsai 2607: }
2608:
2609: sub end_randomlist {
1.159 albertel 2610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2611: my $result;
2612: if ($target eq 'edit' ) {
2613: $result=&Apache::edit::tag_end($target,$token,
2614: 'End Randomly Parsed Block');
2615: }
2616: return $result;
1.6 tsai 2617: }
2618:
1.283 albertel 2619: sub ordered_show_check {
2620: my $last_part=$Apache::inputtags::partlist[-2];
2621: my $in_order=
2622: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2623: my $in_order_show=1;
2624: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2625: $in_order_show=&Apache::response::check_status($last_part);
2626: }
2627: return $in_order_show;
2628: }
2629:
1.469 www 2630:
2631: sub start_startpartmarker {
2632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2633: my $result='';
2634: if ($target eq 'edit') {
2635: $result=&Apache::edit::tag_start($target,$token);
2636: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2637: $result.=&Apache::edit::end_table();
2638:
2639: }
2640: return $result;
2641: }
2642:
2643: sub end_startpartmarker {
2644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2645: my @result;
2646: if ($target eq 'edit') { $result[1]='no'; }
2647: return @result;
2648: }
2649:
2650: sub start_endpartmarker {
2651: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2652: my $result='';
2653: if ($target eq 'edit') {
2654: $result=&Apache::edit::tag_start($target,$token);
2655: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2656: $result.=&Apache::edit::end_table();
2657:
2658: }
2659: return $result;
2660: }
2661:
2662: sub end_endpartmarker {
2663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2664: my @result;
2665: if ($target eq 'edit') { $result[1]='no'; }
2666: return @result;
2667: }
2668:
2669:
2670:
2671:
2672:
1.11 albertel 2673: sub start_part {
1.326 albertel 2674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2675: if (!$Apache::lonxml::metamode) {
2676: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2677: # duedates.
2678: }
1.159 albertel 2679: my $result='';
1.386 albertel 2680: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2681: $Apache::inputtags::part=$id;
1.177 albertel 2682: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2683: $Apache::inputtags::leniency='';
1.177 albertel 2684: @Apache::inputtags::response=();
1.159 albertel 2685: @Apache::inputtags::previous=();
2686: @Apache::inputtags::previous_version=();
1.405 albertel 2687: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2688: &Apache::response::reset_params();
2689:
1.159 albertel 2690: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2691: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2692: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2693: if ($Apache::lonhomework::type eq 'randomizetry') {
2694: my $rndseed=&setup_rndseed($safeeval,$target);
2695: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2696: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2697: }
2698: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2699: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2700: }
1.283 albertel 2701: my $in_order_show=&ordered_show_check();
1.214 albertel 2702: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2703: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2704: &Apache::run::run($expression,$safeeval);
1.159 albertel 2705:
2706: if ($target eq 'meta') {
1.224 www 2707: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2708: return &Apache::response::mandatory_part_meta.
2709: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2710: } elsif ($target eq 'web' || $target eq 'grade' ||
2711: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2712: if ($hidden || !$in_order_show) {
1.326 albertel 2713: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2714: } else {
2715: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2716: push (@Apache::inputtags::status,$status);
2717: my $expression='$external::datestatus="'.$status.'";';
2718: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2719: &Apache::run::run($expression,$safeeval);
1.284 albertel 2720: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2721: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2722: }
1.216 albertel 2723: if (( $status eq 'CLOSED' ) ||
2724: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2725: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2726: ( $status eq 'BANNED') ||
2727: ( $status eq 'UNAVAILABLE') ||
2728: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2729: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2730: $style);
1.159 albertel 2731: if ( $target eq "web" ) {
1.211 albertel 2732: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2733: } elsif ( $target eq 'tex' ) {
1.284 albertel 2734: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2735: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2736: } else {
1.211 albertel 2737: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2738: }
1.159 albertel 2739: }
2740: } else {
2741: if ($target eq 'tex') {
1.284 albertel 2742: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2743: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2744: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2745: } else {
2746: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2747: }
1.195 sakharuk 2748: }
1.159 albertel 2749: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2750: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2751: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2752: my $allow_print_points = 0;
2753: foreach my $partial_key (@allkeys) {
1.230 albertel 2754: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2755: if ($1 ne '0') {$allow_print_points=1;}
2756: }
2757: }
1.275 albertel 2758: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2759: if (defined($maxtries) && $maxtries < 0) {
2760: $allow_print_points=0;
2761: }
1.302 albertel 2762: if (lc($env{'course.'.$env{'request.course.id'}.
2763: '.disableexampointprint'}) eq 'yes') {
2764: $allow_print_points=0;
2765: }
1.463 foxr 2766: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2767: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2768:
2769: }
1.233 www 2770: } elsif ($target eq 'web') {
1.479 raeburn 2771: if ($status eq 'CAN_ANSWER') {
2772: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2773: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2774: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2775: my $num = scalar(@Apache::inputtags::partlist)-1;
2776: if ($probrandomize eq 'randomizetry') {
2777: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2778: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2779: } else {
2780: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2781: if ($probrandtries ne $reqtries) {
2782: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2783: }
2784: }
2785: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2786: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2787: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2788: }
2789: }
1.475 raeburn 2790: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2791: }
2792: }
2793: }
2794: } elsif ($target eq 'edit') {
2795: $result.=&Apache::edit::tag_start($target,$token);
2796: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2797: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2798: ' '.
2799: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2800: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2801: } elsif ($target eq 'modified') {
2802: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2803: $safeeval,'id','display');
1.159 albertel 2804: if ($constructtag) {
1.225 albertel 2805: #limiting ids to only letters numbers, and space
1.224 www 2806: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2807: $result = &Apache::edit::rebuild_tag($token);
2808: }
2809: }
2810: return $result;
1.11 albertel 2811: }
2812:
2813: sub end_part {
1.159 albertel 2814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2815: &Apache::lonxml::debug("in end_part $target ");
2816: my $status=$Apache::inputtags::status['-1'];
2817: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2818: my $in_order_show=&ordered_show_check();
1.321 albertel 2819: my $result;
2820: if (!$Apache::lonxml::metamode) {
2821: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2822: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2823: }
1.312 albertel 2824: if ($target eq 'grade') {
1.249 albertel 2825: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2826: !$hidden && $in_order_show) {
1.311 foxr 2827: $result.=&Apache::inputtags::grade;
1.249 albertel 2828: } else {
2829: # move any submission data to .hidden
2830: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2831: }
1.283 albertel 2832: } elsif (($target eq 'web' || $target eq 'tex') &&
2833: !$hidden && $in_order_show) {
1.159 albertel 2834: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2835: $target);
1.490 raeburn 2836: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2837: ($env{'form.grade_imsexport'})) {
1.212 albertel 2838: $gradestatus='';
2839: }
1.311 foxr 2840: $result.=$gradestatus;
1.265 sakharuk 2841: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2842: } elsif ($target eq 'edit') {
1.311 foxr 2843: $result.=&Apache::edit::end_table();
1.322 albertel 2844: } elsif ($target eq 'modified') {
2845: $result .= $token->[2];
1.159 albertel 2846: }
2847: pop @Apache::inputtags::status;
2848: $Apache::inputtags::part='';
1.536 raeburn 2849: $Apache::inputtags::leniency='';
1.295 albertel 2850: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2851: return $result;
1.11 albertel 2852: }
1.1 albertel 2853:
1.25 albertel 2854: sub start_preduedate {
1.326 albertel 2855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2856: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2857: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2858: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2859: if (!$Apache::lonhomework::scantronmode &&
2860: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2861: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2862: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2863: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2864: }
1.24 albertel 2865: }
1.159 albertel 2866: return '';
1.24 albertel 2867: }
2868:
1.25 albertel 2869: sub end_preduedate {
1.159 albertel 2870: return '';
1.24 albertel 2871: }
2872:
1.369 foxr 2873: # In all the modes where <postanswerdate> text is
2874: # displayable, all we do is eat up the text between the start/stop
2875: # tags if the conditions are not right to display it.
1.25 albertel 2876: sub start_postanswerdate {
1.326 albertel 2877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2878: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2879: &Apache::lonnet::allowed('pav',
2880: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2881: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2882: $target eq 'tex' ) {
1.300 albertel 2883: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2884: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2885: (($target eq 'tex') && !$pav)) {
1.326 albertel 2886: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2887: }
2888: }
2889: return '';
1.24 albertel 2890: }
2891:
1.25 albertel 2892: sub end_postanswerdate {
1.159 albertel 2893: return '';
1.24 albertel 2894: }
2895:
1.25 albertel 2896: sub start_notsolved {
1.326 albertel 2897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2898: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2899: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2900: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2901: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2902: if ($gradestatus =~ /^correct/ &&
2903: &Apache::response::show_answer()) {
1.159 albertel 2904: &Apache::lonxml::debug("skipping");
1.326 albertel 2905: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2906: }
1.24 albertel 2907: }
1.159 albertel 2908: return '';
1.24 albertel 2909: }
2910:
1.25 albertel 2911: sub end_notsolved {
1.159 albertel 2912: return '';
1.24 albertel 2913: }
2914:
2915: sub start_solved {
1.326 albertel 2916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2917: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2918: $target eq 'tex') {
2919: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2920: if ($gradestatus !~ /^correct/ ||
2921: !&Apache::response::show_answer()) {
1.326 albertel 2922: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2923: }
1.24 albertel 2924: }
1.159 albertel 2925: return '';
1.24 albertel 2926: }
2927:
2928: sub end_solved {
1.248 albertel 2929: return '';
2930: }
2931:
2932: sub start_problemtype {
1.326 albertel 2933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2934: my $result;
1.339 albertel 2935: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2936: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2937: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2938: if (!defined($mode)) { $mode='show'; }
2939: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2940: my $found=0;
2941: foreach my $type (split(',',$for)) {
2942: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2943: }
2944: if ($mode eq 'show' && !$found) {
1.326 albertel 2945: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2946: }
2947: if ($mode eq 'hide' && $found) {
1.326 albertel 2948: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2949: }
2950: } elsif ($target eq 'edit') {
2951: $result .=&Apache::edit::tag_start($target,$token);
2952: $result.=&Apache::edit::select_arg('Mode:','mode',
2953: [['show','Show'],
2954: ['hide','Hide']]
2955: ,$token);
2956: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2957: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2958: ['survey','Survey'],
1.465 raeburn 2959: ['surveycred','Survey (with credit)'],
2960: ['anonsurvey','Anonymous Survey'],
2961: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2962: ['problem','Homework Problem'],
1.479 raeburn 2963: ['practice','Practice Problem'],
2964: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2965: ,$token);
2966: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2967: } elsif ($target eq 'modified') {
2968: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2969: $safeeval,'mode','for');
2970: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2971: }
2972: return $result;
2973: }
2974:
2975: sub end_problemtype {
1.159 albertel 2976: return '';
1.24 albertel 2977: }
1.34 albertel 2978:
2979: sub start_startouttext {
1.159 albertel 2980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2981: my @result=(''.'');
2982: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2983:
2984: my $nesting =
2985: &Apache::lonxml::set_state('outtext',
2986: &Apache::lonxml::get_state('outtext')+1);
2987: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2988: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2989: }
1.159 albertel 2990: return (@result);
1.34 albertel 2991: }
1.159 albertel 2992:
1.34 albertel 2993: sub end_startouttext {
1.326 albertel 2994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2995: my $result='';
2996: my $text='';
2997: if ($target eq 'edit') {
1.424 foxr 2998: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2999: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3000: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3001: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3002: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3003: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3004: .'</span></td>'
1.515 golterma 3005: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 3006: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 3007: .'</span></td>'
1.474 raeburn 3008: .'<td>'
3009: .&Apache::edit::insertlist($target,$token)
3010: .'</td>'
1.515 golterma 3011: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3012: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3013: &Apache::edit::end_row().
1.362 albertel 3014: &Apache::edit::start_spanning_row()."\n".
1.255 www 3015: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3016: }
3017: if ($target eq 'modified') {
1.219 albertel 3018: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3019: }
3020: if ($target eq 'tex') {
3021: $result .= '\noindent ';
3022: }
3023: return $result;
1.34 albertel 3024: }
1.159 albertel 3025:
1.34 albertel 3026: sub start_endouttext {
1.159 albertel 3027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3028: my $result='';
3029: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3030: if ($target eq "modified") {
3031: $result='<endouttext />'.
1.377 albertel 3032: &Apache::edit::handle_insertafter('startouttext');
3033: }
1.404 albertel 3034:
3035: my $nesting =
3036: &Apache::lonxml::set_state('outtext',
3037: &Apache::lonxml::get_state('outtext')-1);
3038: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3039: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3040: &Apache::lonxml::set_state('outtext', 0);
3041: }
1.159 albertel 3042: return $result;
1.34 albertel 3043: }
1.159 albertel 3044:
1.34 albertel 3045: sub end_endouttext {
1.159 albertel 3046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3047: my @result=('','');
3048: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3049: return (@result);
1.34 albertel 3050: }
1.159 albertel 3051:
1.45 albertel 3052: sub delete_startouttext {
1.326 albertel 3053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3054: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3055: my $text=$$parser['-1']->get_text("/endouttext");
3056: my $ntoken=$$parser['-1']->get_token();
3057: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3058: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3059: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3060: # they did the last time round
3061: &Apache::lonxml::increasedepth($ntoken);
3062: &Apache::lonxml::decreasedepth($ntoken);
3063: return 1;
1.193 www 3064: }
3065:
3066: sub start_simpleeditbutton {
3067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3068: my $result='';
1.284 albertel 3069: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3070: ($target eq 'web') &&
1.330 albertel 3071: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3072: my $url=$env{'request.noversionuri'};
1.193 www 3073: $url=~s/\?.*$//;
1.367 albertel 3074: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3075: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3076: # $result='<p class="LC_warning">'
3077: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3078: # .&Apache::loncommon::help_open_topic('Caching')
3079: # .'</p>';
1.486 www 3080: $result.=&Apache::loncommon::head_subbox(
3081: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3082: .&Apache::lonhtmlcommon::add_item_funclist(
3083: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3084: .&mt('Edit').'</a>')
1.486 www 3085: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3086:
1.193 www 3087: }
3088: return $result;
3089: }
3090:
3091: sub end_simpleeditbutton {
3092: return '';
1.45 albertel 3093: }
1.34 albertel 3094:
1.428 raeburn 3095: sub practice_problem_header {
3096: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3097: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3098: '</span>';
3099: }
3100:
1.479 raeburn 3101: sub randomizetry_problem_header {
3102: my ($problemstatus,$reqtries) = @_;
3103: my ($header,$text);
3104: if ($reqtries > 1) {
3105: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3106: if (($problemstatus eq 'no') ||
3107: ($problemstatus eq 'no_feedback_ever')) {
3108: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3109: } else {
3110: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3111: }
3112: } else {
3113: $header = &mt('New Problem Variation Each Try');
3114: if (($problemstatus eq 'no') ||
3115: ($problemstatus eq 'no_feedback_ever')) {
3116: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3117:
3118: } else {
3119: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3120: }
3121: }
3122: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3123: '<span class="LC_info">'.$text.'</span><hr />';
3124: }
3125:
3126: sub randomizetry_part_header {
3127: my ($problemstatus,$reqtries,$num) = @_;
3128: my ($header,$text);
3129: if ($reqtries eq 'none') {
3130: $header = &mt('No Question Variation');
3131: $text = &mt('For this question there will no new variation after a try.');
3132: } elsif ($reqtries > 1) {
3133: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3134: if (($problemstatus eq 'no') ||
3135: ($problemstatus eq 'no_feedback_ever')) {
3136: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3137: } else {
3138: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3139: }
3140: } else {
3141: $header = &mt('New Question Variation For Each Try');
3142: if (($problemstatus eq 'no') ||
3143: ($problemstatus eq 'no_feedback_ever')) {
3144: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3145: } else {
3146: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3147: }
3148: }
3149: my $output;
3150: if ($num > 1) {
3151: $output .= '<hr />';
3152: }
3153: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3154: '<span class="LC_info">'.$text.'</span><br /><br />';
3155: return $output;
3156: }
3157:
1.1 albertel 3158: 1;
3159: __END__
1.435 jms 3160:
3161: =pod
3162:
3163: =back
3164:
3165: =cut
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