Annotation of loncom/homework/structuretags.pm, revision 1.549
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.549 ! raeburn 4: # $Id: structuretags.pm,v 1.548 2016/04/04 17:24:18 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') &&
1.549 ! raeburn 1608: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
! 1609: (!$env{'request.role.adv'})) {
! 1610: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.479 raeburn 1611: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1612: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1613: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1614: }
1.324 albertel 1615:
1.159 albertel 1616: my $expression='$external::datestatus="'.$status.'";';
1617: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1618: &Apache::run::run($expression,$safeeval);
1619: &Apache::lonxml::debug("Got $status");
1.324 albertel 1620:
1.159 albertel 1621: if (( $status eq 'CLOSED' ) ||
1622: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1623: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1624: ( $status eq 'BANNED') ||
1.216 albertel 1625: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1626: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1627: ( $status eq 'NOTRESERVABLE') ||
1628: ( $status eq 'RESERVABLE') ||
1629: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1630: ( $status eq 'INVALID_ACCESS') ||
1631: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1632: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1633: $style);
1.159 albertel 1634: if ( $target eq "web" ) {
1.343 albertel 1635: my $msg;
1.159 albertel 1636: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1637: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1638: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1639: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1640: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1641: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1642: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1643: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1644: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1645: }
1.216 albertel 1646: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1647: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1648: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1649: $msg.=&checkout_msg();
1.252 albertel 1650: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1651: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1652: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1653: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1654: } elsif ($status eq 'RESERVABLE') {
1655: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1656: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1657: '<br />'.
1658: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1659: } elsif ($status eq 'RESERVABLE_LATER') {
1660: $msg.=&mt('Window to make a reservation will open [_1].',
1661: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1662: } elsif ($status eq 'NOTRESERVABLE') {
1663: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1664: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1665: if ($ipused) {
1666: $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");
1667: } else {
1668: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1669: &mt('Somebody else has already used this particular computer for that purpose.');
1670: }
1671: }
1.159 albertel 1672: $result.=$msg.'<br />';
1673: } elsif ($target eq 'tex') {
1.332 albertel 1674: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1675: : '\begin{minipage}{\textwidth}';
1.443 foxr 1676: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1677: $startminipage.'\vskip 0 mm';
1.159 albertel 1678: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1679: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1680: } else {
1.211 albertel 1681: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1682: }
1683: }
1.324 albertel 1684: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1685: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1686: $style);
1.324 albertel 1687: if ($target eq 'web') {
1.375 albertel 1688: $result .=
1689: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1690: } elsif ($target eq 'grade') {
1.540 raeburn 1691: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1692: 'problem');
1693: if ($checkinresult = /^error:/) {
1694: $result .= 'error';
1695: }
1.324 albertel 1696: }
1.159 albertel 1697: } elsif ($target eq 'web') {
1.508 raeburn 1698: if ($status eq 'CAN_ANSWER') {
1699: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1700: if ($slot_name ne '') {
1701: my $checked_in =
1702: $Apache::lonhomework::history{'resource.0.checkedin'};
1703: if ($checked_in eq '') {
1704: # unproctored slot access, self checkin
1.540 raeburn 1705: my $needsiptied;
1706: if (ref($slot)) {
1707: $needsiptied = $slot->{'iptied'};
1708: }
1709: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1710: $slot_name,$needsiptied);
1711: if ($check =~ /^error: /) {
1712: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1713: } else {
1714: $checked_in =
1715: $Apache::lonhomework::results{"resource.0.checkedin"};
1716: }
1.508 raeburn 1717: }
1718: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1719: if ($slot->{'starttime'} < time()) {
1720: if (!$resource_due) {
1721: $resource_due = $slot->{'endtime'};
1722: } elsif ($slot->{'endtime'} < $resource_due) {
1723: $resource_due = $slot->{'endtime'};
1724: }
1725: }
1726: }
1727: }
1728: if ($resource_due) {
1729: my $time_left = $resource_due - time();
1730: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1731: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1732: }
1733: }
1734: }
1.368 albertel 1735: $result.="\n $form_tag_start \t".
1.227 albertel 1736: '<input type="hidden" name="submitted" value="yes" />';
1737: # create a page header and exit
1.284 albertel 1738: if ($env{'request.state'} eq "construct") {
1.544 damieng 1739: if ($env{'form.inhibitmenu'} eq 'yes') {
1740: # error messages can be useful in any case
1741: $result.= &Apache::lonxml::message_location();
1742: } else {
1.542 raeburn 1743: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1744: }
1.428 raeburn 1745: if ($Apache::lonhomework::type eq 'practice') {
1746: $result.= '<input type="submit" name="resetdata" '.
1747: 'value="'.&mt('New Problem Variation').'" />'.
1748: &practice_problem_header().'<hr />';
1749: }
1.227 albertel 1750: }
1751: # if we are viewing someone else preserve that info
1.284 albertel 1752: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1753: foreach my $field ('symb','courseid','domain','username') {
1754: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1755: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1756: }
1.479 raeburn 1757: foreach my $field ('trial','questiontype') {
1758: if ($env{"form.grade_$field"} ne '') {
1759: $result .= '<input type="hidden" name="grade_'.$field.
1760: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1761: }
1762: }
1.159 albertel 1763: }
1.490 raeburn 1764: if ($env{'form.grade_imsexport'}) {
1765: $result = '';
1766: }
1.159 albertel 1767: } elsif ($target eq 'tex') {
1.319 foxr 1768: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1769: $result .= &select_metadata_hyphenation();
1770:
1.319 foxr 1771:
1.99 sakharuk 1772: }
1.159 albertel 1773: } elsif ($target eq 'edit') {
1.343 albertel 1774: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1775: $Apache::lonxml::warnings_error_header=
1776: &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 1777: my $temp=&Apache::edit::insertlist($target,$token);
1778: $result.=$temp;
1779: } elsif ($target eq 'modified') {
1780: $result=$token->[4];
1781: } else {
1782: # page_start returned a starting result, delete it if we don't need it
1783: $result = '';
1.99 sakharuk 1784: }
1.159 albertel 1785: return $result;
1.9 albertel 1786: }
1787:
1788: sub end_problem {
1.159 albertel 1789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1790: my $result;
1.310 foxr 1791:
1.321 albertel 1792: if (!$Apache::lonxml::metamode) {
1793: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1794: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1795: }
1.319 foxr 1796:
1797: if ($target eq 'tex') {
1.321 albertel 1798: # Figure out the front matter and replace the
1799: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1800: # this in end_problem because whether or not we display due
1801: # dates depends on whether due dates have already been
1802: # displayed in the problem parts.
1803:
1.319 foxr 1804: my $frontmatter = '';
1805: my $startminipage = '';
1806: if (not $env{'form.problem_split'}=~/yes/) {
1807: $startminipage = '\begin{minipage}{\textwidth}';
1808: }
1809: my $id = $Apache::inputtags::part;
1810: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1811: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1812: my @packages = split(/,/,$packages);
1.319 foxr 1813: my $allow_print_points = 0;
1814: foreach my $partial_key (@packages) {
1815: if ($partial_key=~m/^part_0$/) {
1816: $allow_print_points=1;
1817: }
1818: }
1819: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1820: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1821: if (lc($env{'course.'.$env{'request.course.id'}.
1822: '.disableexampointprint'}) eq 'yes') {
1823: $allow_print_points=0;
1824: }
1825: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1826: 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 1827: &clear_required_languages();
1.319 foxr 1828: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1829: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1830:
1831: # Figure out what the due date is and if we need to print
1832: # it in the problem header. We have been logging the
1833: # last due date written to file.
1834:
1835: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1836: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1837: my $duedate_text = &mt('Due date: [_1]'
1838: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1839: my $temp_file;
1840: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1841:
1842: # Figure out what the last printed due date is or set it
1843: # to the epoch if no duedates have been printed.
1844:
1845: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1846: if (-e $filename) {
1847: $temp_file = Apache::File->new($filename);
1848: my @due_file = <$temp_file>;
1849: $due_file_content = $due_file[$#due_file];
1850: chomp $due_file_content;
1851: }
1852:
1853: # We display the due date iff it is not the same as the last
1854: # duedate in problem header ($due_file_content), and
1855: # none of our parts displayed a duedate.
1856: #
1857: my $parts_with_displayduedate;
1858: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1859: $parts_with_displayduedate =
1860: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1861: } else {
1862: $parts_with_displayduedate = 0;
1863: }
1864: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1865: $temp_file = Apache::File->new('>'.$filename);
1866: print $temp_file "$duetime\n";
1867: if (not $env{'request.symb'} =~ m/\.page_/) {
1868: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1869: $frontmatter .= $begin_doc.
1.448 bisitz 1870: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1871: } else {
1872: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1873: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1874: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1875: }
1.319 foxr 1876: }
1877: } else {
1.448 bisitz 1878: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1879: }
1880: } else {
1881: if (not $env{'request.symb'} =~ m/\.page_/) {
1882: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1883: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1884: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1885: }
1.319 foxr 1886: } else {
1.381 albertel 1887: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1888: }
1889: }
1890: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1891: }
1892:
1.159 albertel 1893: my $status=$Apache::inputtags::status['-1'];
1894: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1895: $target eq 'tex') {
1.249 albertel 1896: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1897: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1898: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1899: &Apache::inputtags::grade;
1.324 albertel 1900: } elsif ($status eq 'NEEDS_CHECKIN') {
1901: # no need to grade, and don't want to hide data
1.249 albertel 1902: } else {
1903: # move any submission data to .hidden
1904: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1905: }
1.159 albertel 1906: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1907: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1908: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1909: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1910: # if part is zero, no <part>s existed, so we need show the current
1911: # grading status
1912: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1913: $result.= $gradestatus;
1914: }
1915: if (
1.284 albertel 1916: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1917: ($target eq 'answer') || ($target eq 'tex')
1918: ) {
1.490 raeburn 1919: if (($target ne 'tex') &&
1920: ($env{'form.answer_output_mode'} ne 'tex') &&
1921: (!$env{'form.grade_imsexport'})) {
1.254 www 1922: $result.="</form>";
1.159 albertel 1923: }
1924: if ($target eq 'web') {
1.507 raeburn 1925: #
1926: # Closing </body></html> not added by end_page().
1927: # Added separately at end of this routine, after added
1928: # <script></script> so document will be valid xhtml.
1929: #
1.546 raeburn 1930: my $showdisc = 1;
1.547 raeburn 1931: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1932: (!$env{'request.role.adv'})) {
1933: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 1934: $showdisc = 0;
1.547 raeburn 1935: my ($symb)= &Apache::lonnet::whichuser();
1936: if ($symb) {
1937: my $navmap = Apache::lonnavmaps::navmap->new();
1938: if (ref($navmap)) {
1939: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
1940: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 ! raeburn 1941: # and there are no tries left
1.547 raeburn 1942: unless ($hastries) {
1943: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
1944: my ($score,$incomplete) =
1945: &Apache::lonplacementtest::check_completion(undef,undef,1);
1946: if (!$incomplete) {
1947: $result .= &Apache::lonplacementtest::showresult(1,1);
1948: } elsif ($incomplete < 100) {
1949: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
1950: }
1951: } else {
1952: # For Placement Tests score is displayed if test has just been completed
1953: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
1954: if (!$incomplete) {
1955: $result.= &Apache::lonplacementtest::showresult(1,1);
1956: }
1957: }
1958: }
1959: }
1960: }
1.546 raeburn 1961: }
1962: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 1963: 'notbody' => 1});
1.159 albertel 1964: } elsif ($target eq 'tex') {
1.178 sakharuk 1965: my $endminipage = '';
1.284 albertel 1966: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1967: $endminipage = '\end{minipage}';
1968: }
1.284 albertel 1969: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1970: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1971: } else {
1.262 sakharuk 1972: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1973: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1974: $result .= $endminipage.'\end{document} ';
1975: } else {
1.382 albertel 1976: $result .= $endminipage;
1.262 sakharuk 1977: }
1.159 albertel 1978: }
1979: }
1980: }
1.476 www 1981: if ($target eq 'web') {
1982: $result.=&Apache::functionplotresponse::init_script();
1983: }
1.159 albertel 1984: if ($target eq 'grade') {
1985: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1986: &finalize_storage();
1987: }
1.284 albertel 1988: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1989: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1990: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1991: # normally we get it from above, but in CSTR
1.172 albertel 1992: # we always show answer mode too.
1.159 albertel 1993: }
1994: } elsif ($target eq 'meta') {
1995: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1996: @Apache::inputtags::response=();
1.159 albertel 1997: $result=&Apache::response::mandatory_part_meta;
1998: }
1.215 albertel 1999: $result.=&Apache::response::meta_part_order();
1.258 albertel 2000: $result.=&Apache::response::meta_response_order();
1.159 albertel 2001: } elsif ($target eq 'edit') {
2002: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2003: $result .= &problem_edit_footer();
1.320 albertel 2004: } elsif ($target eq 'modified') {
2005: $result .= $token->[2];
1.159 albertel 2006: }
1.155 albertel 2007:
1.284 albertel 2008: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2009: &Apache::inputtags::check_for_duplicate_ids();
2010: }
1.204 albertel 2011:
2012: &reset_problem_globals('problem');
1.159 albertel 2013:
1.502 foxr 2014: #
2015: # This shouild be just above the return so that the
2016: # time put in the javascript is as late as possible in the
2017: # computation:
2018: #
2019: if ($target eq 'web') {
2020: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2021: #
2022: # Closing tags delayed so any <script></script> tags
2023: # not in head can appear inside body, for valid xhtml.
2024: #
2025: $result .= "</body>\n</html>";
1.502 foxr 2026: }
1.159 albertel 2027: return $result;
1.48 albertel 2028: }
2029:
1.108 albertel 2030:
1.48 albertel 2031: sub start_library {
1.159 albertel 2032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2033: my ($result,$form_tag_start);
1.371 albertel 2034: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2035: &init_problem_globals('library');
2036: $Apache::lonhomework::type='problem';
2037: }
1.159 albertel 2038: if ($target eq 'edit') {
1.343 albertel 2039: ($result,$form_tag_start)=
2040: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2041: 'Edit');
2042: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2043: my $temp=&Apache::edit::insertlist($target,$token);
2044: $result.=$temp;
2045: } elsif ($target eq 'modified') {
2046: $result=$token->[4];
1.340 albertel 2047: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2048: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2049: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2050: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2051: ($result,$form_tag_start)=
2052: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2053: $name);
1.479 raeburn 2054: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2055: $result.=" \n $form_tag_start".
1.159 albertel 2056: '<input type="hidden" name="submitted" value="yes" />';
2057: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2058: if ($Apache::lonhomework::type eq 'practice') {
2059: $result.= '<input type="submit" name="resetdata" '.
2060: 'value="'.&mt('New Problem Variation').'" />'.
2061: &practice_problem_header().'<hr />';
2062: }
1.159 albertel 2063: }
2064: return $result;
1.48 albertel 2065: }
2066:
2067: sub end_library {
1.159 albertel 2068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2069: my $result='';
2070: if ($target eq 'edit') {
2071: $result=&problem_edit_footer();
1.371 albertel 2072: } elsif ($target eq 'web'
2073: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2074: && $env{'request.state'} eq "construct") {
1.349 albertel 2075: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2076: }
1.371 albertel 2077: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2078: &reset_problem_globals('library');
2079: }
1.159 albertel 2080: return $result;
1.197 www 2081: }
2082:
2083: sub start_definetag {
1.326 albertel 2084: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2085:
2086: my $result;
2087:
2088: my $name = $token->[2]->{'name'};
1.326 albertel 2089: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2090: if ($target eq 'web') {
2091: if ($name=~/^\//) {
2092: $result=
2093: '<br /><table class="LC_sty_end"><tr><th>'.
2094: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2095: } else {
2096: $result=
2097: '<br /><table class="LC_sty_begin"><tr><th>'.
2098: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2099: }
2100: $skip = &HTML::Entities::encode($skip, '<>&"');
2101: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2102: }
2103: return $result;
2104: }
2105:
2106: sub end_definetag {
2107: return '';
1.1 albertel 2108: }
2109:
2110: sub start_block {
1.201 albertel 2111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2112:
2113: my $result;
1.1 albertel 2114:
1.339 albertel 2115: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2116: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2117: my $code = $token->[2]->{'condition'};
1.385 albertel 2118: if (defined($code) && $code ne '') {
1.137 albertel 2119: if (!$Apache::lonxml::default_homework_loaded) {
2120: &Apache::lonxml::default_homework_load($safeeval);
2121: }
1.131 albertel 2122: $result = &Apache::run::run($code,$safeeval);
2123: &Apache::lonxml::debug("block :$code: returned :$result:");
2124: } else {
2125: $result='1';
2126: }
2127: if ( ! $result ) {
1.201 albertel 2128: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2129: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2130: }
2131: $result='';
2132: } elsif ($target eq 'edit') {
2133: $result .=&Apache::edit::tag_start($target,$token);
2134: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2135: $token,40);
2136: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2137: } elsif ($target eq 'modified') {
2138: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2139: $safeeval,'condition');
2140: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2141: }
1.131 albertel 2142: return $result;
1.1 albertel 2143: }
2144:
2145: sub end_block {
1.167 www 2146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2147: my $result;
2148: if ($target eq "edit") {
2149: $result.= &Apache::edit::tag_end($target,$token,'');
2150: }
2151: return $result;
2152: }
1.500 foxr 2153: #
2154: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2155: # ...
2156: # </languageblock>
2157: #
2158: # This declares the intent to provide content that can be rendered in the
2159: # set of languages in the include specificatino but not in the exclude
2160: # specification. If a currently preferred language is in the include list
2161: # the content in the <languageblock>...</languageblock> is rendered
2162: # If the currently preferred language is in the exclude list,
2163: # the content in the <languageblock>..></languageblock is not rendered.
2164: #
2165: # Pathalogical case handling:
2166: # - Include specified, without the preferred language but exclude specified
2167: # also without the preferred langauge results in rendering the block.
2168: # - Exclude specified without include and excluden not containing a
2169: # preferred language renders the block.
2170: # - Include and exclude both specifying the preferred language does not
2171: # render the block.
2172: # - If neither include/exclude is specified, the block gets rendered.
2173: #
2174: # This tag has no effect when target is in {edit, modified}
2175: #
1.167 www 2176: sub start_languageblock {
1.201 albertel 2177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2178:
1.500 foxr 2179: my $result = '';
1.167 www 2180:
1.339 albertel 2181: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2182: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2183: my $include = $token->[2]->{'include'};
2184: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2185: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2186:
2187: # This should not even happen, since we should at least have the server language
2188:
2189: if (!$preferred_languages[0]) {
2190: $preferred_languages[0]='en';
2191: }
2192:
2193: # Now loop over all languages in order of preference
2194:
2195: my $render;
1.398 www 2196: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2197:
2198: # If neither include/nor exlude is present the block is going
2199: # to get rendered.
2200:
1.399 www 2201: my $found=0;
1.500 foxr 2202: $render=1;
2203:
2204: # If include is specified, don't render the block
2205: # unless the preferred language is included in the set.
2206:
1.398 www 2207: if ($include) {
1.500 foxr 2208: $render=0;
1.398 www 2209: foreach my $included_language (split(/\,/,$include)) {
2210: if ($included_language eq $preferred_language) {
1.500 foxr 2211: $render=1;
1.399 www 2212: $found=1;
1.500 foxr 2213: last; # Only need to find the first.
1.398 www 2214: }
2215: }
2216: }
1.500 foxr 2217: # Do we have an exclude argument?
2218: # If so, and one of the languages matches a preferred language
2219: # inhibit rendering the block. Note that in the pathalogical case the
2220: # author has specified a preferred language in both the include and exclude
2221: # attribte exclude is preferred.
2222:
1.398 www 2223: if ($exclude) {
1.500 foxr 2224: $render=1;
1.398 www 2225: foreach my $excluded_language (split(/\,/,$exclude)) {
2226: if ($excluded_language eq $preferred_language) {
1.500 foxr 2227: $render=0;
1.399 www 2228: $found=1;
1.500 foxr 2229: last; # Only need to find the first.
1.398 www 2230: }
2231: }
2232: }
1.500 foxr 2233: if ($found) {
2234: last; # Done on any match of include or exclude.
2235: }
1.398 www 2236: }
1.500 foxr 2237: # If $render not true skip the entire block until </languageblock>
2238: #
2239:
2240: if ( ! $render ) {
1.201 albertel 2241: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2242: $style);
2243: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2244: }
1.500 foxr 2245: # If $render is true, we've not skipped the contents of the <languageglock>
2246: # and the normal loncapa processing flow will render it as a matter of course.
2247:
1.167 www 2248: } elsif ($target eq 'edit') {
2249: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2250: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2251: $token,40);
1.211 albertel 2252: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2253: $token,40);
2254: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2255: } elsif ($target eq 'modified') {
2256: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2257: $safeeval,'include',
2258: 'exclude');
1.167 www 2259: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2260: }
2261: return $result;
2262: }
2263:
2264: sub end_languageblock {
1.170 www 2265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2266: my $result;
1.201 albertel 2267: if ($target eq "edit") {
1.170 www 2268: $result.= &Apache::edit::tag_end($target,$token,'');
2269: }
2270: return $result;
2271: }
1.500 foxr 2272: # languagblock specific tags:
2273: {
2274: # For chunks of a resource that has translations, this hash contains
2275: # the translations available indexed by language name.
2276: #
2277:
2278: my %available_texts;
1.170 www 2279:
1.500 foxr 2280: # <translated> starts a block of a resource that has multiple translations.
2281: # See the <lang> tag as well.
2282: # When </translated> is encountered if there is a translation for the
2283: # currently preferred language, that is rendered inthe web/tex/webgrade
2284: # targets. Otherwise, the default text is rendered.
2285: #
2286: # Note that <lang> is only registered for the duration of the
2287: # <translated>...</translated> block
2288: #
2289: # Pathalogical case handling:
2290: # - If there is no <lang> that specifies a 'default' and there is no
2291: # translation that matches a preferred language, nothing is rendered.
2292: # - Nested <translated>...</translated> might be linguistically supported by
2293: # XML due to the stack nature of tag registration(?) however the rendered
2294: # output will be incorrect because there is only one %available_texts
2295: # has and end_translated clears it.
2296: # - Material outside of a <lang>...</lang> block within the
2297: # <translated>...<translated> block won't render either e.g.:
2298: # <translated>
2299: # The following will be in your preferred langauge:
2300: # <lang which='en'>
2301: # This section in english
2302: # </lang>
2303: # <lang which='sgeiso'>
2304: # Hier es ist auf Deutsch.
2305: # </lang>
2306: # <lang which='sfriso'>
2307: # En Francais
2308: # </lang>
2309: # </translated>
2310: #
2311: # The introductory text prior to the first <lang> tag is not rendered.
2312: #
1.397 albertel 2313: sub start_translated {
2314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2315: &Apache::lonxml::register('Apache::structuretags',('lang'));
2316: undef(%available_texts);
2317: }
2318:
2319: sub end_translated {
2320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2321: my $result;
2322: #show the translation on viewable targets
2323: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2324: # or non-viewable targets, if it's embedded in something that
2325: # wants the output
2326: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2327: && &Apache::lonxml::in_redirection() ) ) {
2328: my @possibilities = keys(%available_texts);
2329: my $which =
2330: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2331: if ($target eq 'tex') {
2332: $result = &select_hyphenation($which);
2333: }
2334: $result .= $available_texts{$which};
2335: if ($target eq 'tex') {
2336: $result .= &select_metadata_hyphenation(); # Restore original language.
2337: }
1.397 albertel 2338: }
2339: undef(%available_texts);
2340: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2341: return $result;
2342: }
2343:
1.500 foxr 2344: # <lang [which='language-name'] [other='lang1,lang2...']>
2345: # Specifies that the block contained within it is a translation
2346: # for a specific language specified by the 'which' attribute. The
2347: # 'other' attribute can be used by itself or in conjunction with
2348: # which to specify this tag _may_ be used as a translation for some
2349: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2350: # specifying that the block provides a translation for US (primary)
2351: # Canadian, Australian and UK Englush.
2352: #
2353: # Comment: this seems a bit silly why not just support a list of languages
2354: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2355: #
2356: # Effect:
2357: # The material within the <lang>..</lang> block is stored in the
2358: # specified set of $available_texts hash entries, the appropriate one
2359: # is selected at </translated> time.
2360: #
2361: # Pathalogical case handling:
2362: # If a language occurs multiple times within a <translated> block,
2363: # only the last one is rendered e.g.:
2364: #
2365: # <translated>
2366: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2367: # Red green color blindness is quite common affecting about 7.8% of
2368: # the male population, but onloy about .65% of the female population.
2369: # </lang>
2370: # Red green colour blindness is quite common affecting about 7.8% of
2371: # the male population, but onloy about .65% of the female population.
2372: # <lang which='seniso', other='senisoCA,senisoAU'>
2373: # </translated>
2374: #
2375: # renders the correct spelling of color (colour) for people who have specified
2376: # a preferred language that is one of the British Commonwealth languages
2377: # even though those are also listed as valid selections for the US english
2378: # <lang> block.
2379: #
1.397 albertel 2380: sub start_lang {
2381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2382: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2383: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2384: &Apache::lonxml::startredirection();
2385: }
2386: return '';
2387: }
2388:
2389: sub end_lang {
2390: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2391: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2392: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2393: my $result = &Apache::lonxml::endredirection();
2394: my $which = &Apache::lonxml::get_param('which',$parstack,
2395: $safeeval);
1.431 raeburn 2396: if ($which=~/\w/) {
2397: $available_texts{$which} = $result;
2398: }
2399: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2400: $safeeval);
2401: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2402: if ($language=~/\w/) {
2403: $available_texts{$language} = $result;
2404: }
1.427 bisitz 2405: }
2406:
1.397 albertel 2407: }
2408: return '';
2409: }
1.500 foxr 2410: } # end langauge block specific tags.
2411:
1.397 albertel 2412:
1.170 www 2413: sub start_instructorcomment {
1.201 albertel 2414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2415:
2416: my $result;
2417:
1.339 albertel 2418: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2419: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2420: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2421: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2422: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2423: $parser,$style);
1.170 www 2424: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2425: }
2426: $result='';
2427: } elsif ($target eq 'edit') {
2428: $result .=&Apache::edit::tag_start($target,$token);
2429: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2430: }
2431: return $result;
2432: }
2433:
2434: sub end_instructorcomment {
1.159 albertel 2435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2436: my $result;
2437: if ($target eq "edit") {
2438: $result.= &Apache::edit::tag_end($target,$token,'');
2439: }
2440: return $result;
1.4 tsai 2441: }
2442:
2443: sub start_while {
1.326 albertel 2444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2445:
1.160 albertel 2446: my $result;
1.339 albertel 2447: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2448: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2449: my $code = $token->[2]->{'condition'};
1.4 tsai 2450:
1.160 albertel 2451: push( @Apache::structuretags::whileconds, $code);
2452: if (!$Apache::lonxml::default_homework_loaded) {
2453: &Apache::lonxml::default_homework_load($safeeval);
2454: }
2455: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2456: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2457: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2458: push( @Apache::structuretags::whileline, $token->[5]);
2459: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2460: if ( $result ) {
2461: &Apache::lonxml::newparser($parser,\$bodytext);
2462: }
2463: } elsif ($target eq 'edit') {
2464: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2465: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2466: $token,40);
2467: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2468: } elsif ($target eq 'modified') {
2469: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2470: $safeeval,'condition');
2471: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2472: }
1.160 albertel 2473: return $result;
1.4 tsai 2474: }
2475:
2476: sub end_while {
1.159 albertel 2477: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2478: my $result;
2479:
1.339 albertel 2480: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2481: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2482: my $code = pop(@Apache::structuretags::whileconds);
2483: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2484: my $line = pop(@Apache::structuretags::whileline);
2485: my $return = &Apache::run::run($code,$safeeval);
2486: my $starttime=time;
2487: my $error=0;
2488: while ($return) {
2489: if (time-$starttime >
2490: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2491: $return = 0; $error=1; next;
1.161 albertel 2492: }
2493: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2494: if ($target eq 'grade' || $target eq 'answer' ||
2495: $target eq 'analyze') {
2496: # grade/answer/analyze should produce no output but if we
2497: # are redirecting, the redirecter should know what to do
2498: # with the output
2499: if (!$Apache::lonxml::redirection) { undef($result); }
2500: }
1.161 albertel 2501: $return = &Apache::run::run($code,$safeeval);
2502: }
1.516 bisitz 2503: if ($error) {
2504: &Apache::lonxml::error(
2505: '<pre>'
2506: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2507: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2508: .&mt('This occurred while running <while> on line [_1].',
2509: $line)
2510: .'</pre>');
2511: }
1.160 albertel 2512: } elsif ($target eq "edit") {
2513: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2514: }
1.160 albertel 2515: return $result;
1.1 albertel 2516: }
1.6 tsai 2517:
1.160 albertel 2518: # <randomlist show="1">
1.6 tsai 2519: # <tag1>..</tag1>
2520: # <tag2>..</tag2>
2521: # <tag3>..</tag3>
1.160 albertel 2522: # ...
1.6 tsai 2523: # </randomlist>
2524: sub start_randomlist {
1.326 albertel 2525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2526: my $result;
1.339 albertel 2527: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2528: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2529: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2530: my $b_parser= HTML::LCParser->new(\$body);
2531: $b_parser->xml_mode(1);
2532: $b_parser->marked_sections(1);
1.159 albertel 2533: my $b_tok;
2534: my @randomlist;
2535: my $list_item;
2536: while($b_tok = $b_parser->get_token() ) {
2537: if($b_tok->[0] eq 'S') { # start tag
2538: # get content of the tag until matching end tag
2539: # get all text upto the matching tag
2540: # and push the content into @randomlist
2541: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2542: $b_parser);
2543: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2544: push(@randomlist,$list_item);
2545: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2546: # $list_item</b>";
2547: }
2548: if($b_tok->[0] eq 'T') { # text
2549: # what to do with text in between tags?
2550: # print "<b>TEXT $b_tok->[1]</b><br />";
2551: }
2552: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2553: # print "<b>END-TAG $b_tok->[1]</b><br />";
2554: # }
2555: }
1.303 albertel 2556: if (@randomlist) {
2557: my @idx_arr = (0 .. $#randomlist);
2558: &Apache::structuretags::shuffle(\@idx_arr);
2559: my $bodytext = '';
2560: my $show=$#randomlist;
2561: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2562: $showarg--;
2563: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2564: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2565: my @currlist;
2566: my $part = $Apache::inputtags::part;
2567: if ($part ne '') {
2568: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2569: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2570: if (!(grep(/^\Q$part\E$/,@currlist))) {
2571: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2572: }
2573: } else {
2574: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2575: }
2576: }
2577: }
1.526 raeburn 2578: for my $i (0 .. $show) {
2579: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2580: }
2581: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2582: }
2583: } elsif ($target eq 'edit' ) {
2584: $result .=&Apache::edit::tag_start($target,$token);
2585: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2586: $token,5);
2587: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2588: } elsif ($target eq 'modified' ) {
2589: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2590: $safeeval,'show');
2591: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2592: }
2593: return $result;
1.7 tsai 2594: }
2595:
2596: sub shuffle {
2597: my $a=shift;
2598: my $i;
1.303 albertel 2599: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2600: &Apache::response::pushrandomnumber();
1.159 albertel 2601: for($i=@$a;--$i;) {
2602: my $j=int(&Math::Random::random_uniform() * ($i+1));
2603: next if $i == $j;
2604: @$a[$i,$j] = @$a[$j,$i];
2605: }
1.251 albertel 2606: &Apache::response::poprandomnumber();
1.7 tsai 2607: }
1.6 tsai 2608: }
2609:
2610: sub end_randomlist {
1.159 albertel 2611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2612: my $result;
2613: if ($target eq 'edit' ) {
2614: $result=&Apache::edit::tag_end($target,$token,
2615: 'End Randomly Parsed Block');
2616: }
2617: return $result;
1.6 tsai 2618: }
2619:
1.283 albertel 2620: sub ordered_show_check {
2621: my $last_part=$Apache::inputtags::partlist[-2];
2622: my $in_order=
2623: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2624: my $in_order_show=1;
2625: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2626: $in_order_show=&Apache::response::check_status($last_part);
2627: }
2628: return $in_order_show;
2629: }
2630:
1.469 www 2631:
2632: sub start_startpartmarker {
2633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2634: my $result='';
2635: if ($target eq 'edit') {
2636: $result=&Apache::edit::tag_start($target,$token);
2637: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2638: $result.=&Apache::edit::end_table();
2639:
2640: }
2641: return $result;
2642: }
2643:
2644: sub end_startpartmarker {
2645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2646: my @result;
2647: if ($target eq 'edit') { $result[1]='no'; }
2648: return @result;
2649: }
2650:
2651: sub start_endpartmarker {
2652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2653: my $result='';
2654: if ($target eq 'edit') {
2655: $result=&Apache::edit::tag_start($target,$token);
2656: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2657: $result.=&Apache::edit::end_table();
2658:
2659: }
2660: return $result;
2661: }
2662:
2663: sub end_endpartmarker {
2664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2665: my @result;
2666: if ($target eq 'edit') { $result[1]='no'; }
2667: return @result;
2668: }
2669:
2670:
2671:
2672:
2673:
1.11 albertel 2674: sub start_part {
1.326 albertel 2675: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2676: if (!$Apache::lonxml::metamode) {
2677: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2678: # duedates.
2679: }
1.159 albertel 2680: my $result='';
1.386 albertel 2681: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2682: $Apache::inputtags::part=$id;
1.177 albertel 2683: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2684: $Apache::inputtags::leniency='';
1.177 albertel 2685: @Apache::inputtags::response=();
1.159 albertel 2686: @Apache::inputtags::previous=();
2687: @Apache::inputtags::previous_version=();
1.405 albertel 2688: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2689: &Apache::response::reset_params();
2690:
1.159 albertel 2691: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2692: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2693: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2694: if ($Apache::lonhomework::type eq 'randomizetry') {
2695: my $rndseed=&setup_rndseed($safeeval,$target);
2696: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2697: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2698: }
2699: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2700: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2701: }
1.283 albertel 2702: my $in_order_show=&ordered_show_check();
1.214 albertel 2703: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2704: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2705: &Apache::run::run($expression,$safeeval);
1.159 albertel 2706:
2707: if ($target eq 'meta') {
1.224 www 2708: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2709: return &Apache::response::mandatory_part_meta.
2710: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2711: } elsif ($target eq 'web' || $target eq 'grade' ||
2712: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2713: if ($hidden || !$in_order_show) {
1.326 albertel 2714: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2715: } else {
2716: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2717: push (@Apache::inputtags::status,$status);
2718: my $expression='$external::datestatus="'.$status.'";';
2719: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2720: &Apache::run::run($expression,$safeeval);
1.284 albertel 2721: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2722: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2723: }
1.216 albertel 2724: if (( $status eq 'CLOSED' ) ||
2725: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2726: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2727: ( $status eq 'BANNED') ||
2728: ( $status eq 'UNAVAILABLE') ||
2729: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2730: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2731: $style);
1.159 albertel 2732: if ( $target eq "web" ) {
1.211 albertel 2733: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2734: } elsif ( $target eq 'tex' ) {
1.284 albertel 2735: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2736: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2737: } else {
1.211 albertel 2738: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2739: }
1.159 albertel 2740: }
2741: } else {
2742: if ($target eq 'tex') {
1.284 albertel 2743: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2744: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2745: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2746: } else {
2747: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2748: }
1.195 sakharuk 2749: }
1.159 albertel 2750: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2751: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2752: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2753: my $allow_print_points = 0;
2754: foreach my $partial_key (@allkeys) {
1.230 albertel 2755: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2756: if ($1 ne '0') {$allow_print_points=1;}
2757: }
2758: }
1.275 albertel 2759: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2760: if (defined($maxtries) && $maxtries < 0) {
2761: $allow_print_points=0;
2762: }
1.302 albertel 2763: if (lc($env{'course.'.$env{'request.course.id'}.
2764: '.disableexampointprint'}) eq 'yes') {
2765: $allow_print_points=0;
2766: }
1.463 foxr 2767: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2768: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2769:
2770: }
1.233 www 2771: } elsif ($target eq 'web') {
1.479 raeburn 2772: if ($status eq 'CAN_ANSWER') {
2773: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2774: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2775: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2776: my $num = scalar(@Apache::inputtags::partlist)-1;
2777: if ($probrandomize eq 'randomizetry') {
2778: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2779: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2780: } else {
2781: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2782: if ($probrandtries ne $reqtries) {
2783: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2784: }
2785: }
2786: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2787: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2788: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2789: }
2790: }
1.475 raeburn 2791: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2792: }
2793: }
2794: }
2795: } elsif ($target eq 'edit') {
2796: $result.=&Apache::edit::tag_start($target,$token);
2797: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2798: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2799: ' '.
2800: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2801: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2802: } elsif ($target eq 'modified') {
2803: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2804: $safeeval,'id','display');
1.159 albertel 2805: if ($constructtag) {
1.225 albertel 2806: #limiting ids to only letters numbers, and space
1.224 www 2807: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2808: $result = &Apache::edit::rebuild_tag($token);
2809: }
2810: }
2811: return $result;
1.11 albertel 2812: }
2813:
2814: sub end_part {
1.159 albertel 2815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2816: &Apache::lonxml::debug("in end_part $target ");
2817: my $status=$Apache::inputtags::status['-1'];
2818: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2819: my $in_order_show=&ordered_show_check();
1.321 albertel 2820: my $result;
2821: if (!$Apache::lonxml::metamode) {
2822: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2823: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2824: }
1.312 albertel 2825: if ($target eq 'grade') {
1.249 albertel 2826: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2827: !$hidden && $in_order_show) {
1.311 foxr 2828: $result.=&Apache::inputtags::grade;
1.249 albertel 2829: } else {
2830: # move any submission data to .hidden
2831: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2832: }
1.283 albertel 2833: } elsif (($target eq 'web' || $target eq 'tex') &&
2834: !$hidden && $in_order_show) {
1.159 albertel 2835: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2836: $target);
1.490 raeburn 2837: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2838: ($env{'form.grade_imsexport'})) {
1.212 albertel 2839: $gradestatus='';
2840: }
1.311 foxr 2841: $result.=$gradestatus;
1.265 sakharuk 2842: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2843: } elsif ($target eq 'edit') {
1.311 foxr 2844: $result.=&Apache::edit::end_table();
1.322 albertel 2845: } elsif ($target eq 'modified') {
2846: $result .= $token->[2];
1.159 albertel 2847: }
2848: pop @Apache::inputtags::status;
2849: $Apache::inputtags::part='';
1.536 raeburn 2850: $Apache::inputtags::leniency='';
1.295 albertel 2851: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2852: return $result;
1.11 albertel 2853: }
1.1 albertel 2854:
1.25 albertel 2855: sub start_preduedate {
1.326 albertel 2856: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2857: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2858: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2859: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2860: if (!$Apache::lonhomework::scantronmode &&
2861: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2862: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2863: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2864: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2865: }
1.24 albertel 2866: }
1.159 albertel 2867: return '';
1.24 albertel 2868: }
2869:
1.25 albertel 2870: sub end_preduedate {
1.159 albertel 2871: return '';
1.24 albertel 2872: }
2873:
1.369 foxr 2874: # In all the modes where <postanswerdate> text is
2875: # displayable, all we do is eat up the text between the start/stop
2876: # tags if the conditions are not right to display it.
1.25 albertel 2877: sub start_postanswerdate {
1.326 albertel 2878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2879: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2880: &Apache::lonnet::allowed('pav',
2881: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2882: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2883: $target eq 'tex' ) {
1.300 albertel 2884: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2885: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2886: (($target eq 'tex') && !$pav)) {
1.326 albertel 2887: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2888: }
2889: }
2890: return '';
1.24 albertel 2891: }
2892:
1.25 albertel 2893: sub end_postanswerdate {
1.159 albertel 2894: return '';
1.24 albertel 2895: }
2896:
1.25 albertel 2897: sub start_notsolved {
1.326 albertel 2898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2899: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2900: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2901: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2902: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2903: if ($gradestatus =~ /^correct/ &&
2904: &Apache::response::show_answer()) {
1.159 albertel 2905: &Apache::lonxml::debug("skipping");
1.326 albertel 2906: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2907: }
1.24 albertel 2908: }
1.159 albertel 2909: return '';
1.24 albertel 2910: }
2911:
1.25 albertel 2912: sub end_notsolved {
1.159 albertel 2913: return '';
1.24 albertel 2914: }
2915:
2916: sub start_solved {
1.326 albertel 2917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2918: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2919: $target eq 'tex') {
2920: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2921: if ($gradestatus !~ /^correct/ ||
2922: !&Apache::response::show_answer()) {
1.326 albertel 2923: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2924: }
1.24 albertel 2925: }
1.159 albertel 2926: return '';
1.24 albertel 2927: }
2928:
2929: sub end_solved {
1.248 albertel 2930: return '';
2931: }
2932:
2933: sub start_problemtype {
1.326 albertel 2934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2935: my $result;
1.339 albertel 2936: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2937: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2938: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2939: if (!defined($mode)) { $mode='show'; }
2940: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2941: my $found=0;
2942: foreach my $type (split(',',$for)) {
2943: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2944: }
2945: if ($mode eq 'show' && !$found) {
1.326 albertel 2946: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2947: }
2948: if ($mode eq 'hide' && $found) {
1.326 albertel 2949: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2950: }
2951: } elsif ($target eq 'edit') {
2952: $result .=&Apache::edit::tag_start($target,$token);
2953: $result.=&Apache::edit::select_arg('Mode:','mode',
2954: [['show','Show'],
2955: ['hide','Hide']]
2956: ,$token);
2957: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2958: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2959: ['survey','Survey'],
1.465 raeburn 2960: ['surveycred','Survey (with credit)'],
2961: ['anonsurvey','Anonymous Survey'],
2962: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2963: ['problem','Homework Problem'],
1.479 raeburn 2964: ['practice','Practice Problem'],
2965: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2966: ,$token);
2967: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2968: } elsif ($target eq 'modified') {
2969: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2970: $safeeval,'mode','for');
2971: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2972: }
2973: return $result;
2974: }
2975:
2976: sub end_problemtype {
1.159 albertel 2977: return '';
1.24 albertel 2978: }
1.34 albertel 2979:
2980: sub start_startouttext {
1.159 albertel 2981: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2982: my @result=(''.'');
2983: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2984:
2985: my $nesting =
2986: &Apache::lonxml::set_state('outtext',
2987: &Apache::lonxml::get_state('outtext')+1);
2988: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2989: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2990: }
1.159 albertel 2991: return (@result);
1.34 albertel 2992: }
1.159 albertel 2993:
1.34 albertel 2994: sub end_startouttext {
1.326 albertel 2995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2996: my $result='';
2997: my $text='';
2998: if ($target eq 'edit') {
1.424 foxr 2999: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3000: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3001: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3002: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3003: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3004: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3005: .'</span></td>'
1.515 golterma 3006: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 3007: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 3008: .'</span></td>'
1.474 raeburn 3009: .'<td>'
3010: .&Apache::edit::insertlist($target,$token)
3011: .'</td>'
1.515 golterma 3012: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3013: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3014: &Apache::edit::end_row().
1.362 albertel 3015: &Apache::edit::start_spanning_row()."\n".
1.255 www 3016: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3017: }
3018: if ($target eq 'modified') {
1.219 albertel 3019: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3020: }
3021: if ($target eq 'tex') {
3022: $result .= '\noindent ';
3023: }
3024: return $result;
1.34 albertel 3025: }
1.159 albertel 3026:
1.34 albertel 3027: sub start_endouttext {
1.159 albertel 3028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3029: my $result='';
3030: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3031: if ($target eq "modified") {
3032: $result='<endouttext />'.
1.377 albertel 3033: &Apache::edit::handle_insertafter('startouttext');
3034: }
1.404 albertel 3035:
3036: my $nesting =
3037: &Apache::lonxml::set_state('outtext',
3038: &Apache::lonxml::get_state('outtext')-1);
3039: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3040: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3041: &Apache::lonxml::set_state('outtext', 0);
3042: }
1.159 albertel 3043: return $result;
1.34 albertel 3044: }
1.159 albertel 3045:
1.34 albertel 3046: sub end_endouttext {
1.159 albertel 3047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3048: my @result=('','');
3049: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3050: return (@result);
1.34 albertel 3051: }
1.159 albertel 3052:
1.45 albertel 3053: sub delete_startouttext {
1.326 albertel 3054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3055: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3056: my $text=$$parser['-1']->get_text("/endouttext");
3057: my $ntoken=$$parser['-1']->get_token();
3058: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3059: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3060: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3061: # they did the last time round
3062: &Apache::lonxml::increasedepth($ntoken);
3063: &Apache::lonxml::decreasedepth($ntoken);
3064: return 1;
1.193 www 3065: }
3066:
3067: sub start_simpleeditbutton {
3068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3069: my $result='';
1.284 albertel 3070: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3071: ($target eq 'web') &&
1.330 albertel 3072: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3073: my $url=$env{'request.noversionuri'};
1.193 www 3074: $url=~s/\?.*$//;
1.367 albertel 3075: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3076: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3077: # $result='<p class="LC_warning">'
3078: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3079: # .&Apache::loncommon::help_open_topic('Caching')
3080: # .'</p>';
1.486 www 3081: $result.=&Apache::loncommon::head_subbox(
3082: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3083: .&Apache::lonhtmlcommon::add_item_funclist(
3084: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3085: .&mt('Edit').'</a>')
1.486 www 3086: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3087:
1.193 www 3088: }
3089: return $result;
3090: }
3091:
3092: sub end_simpleeditbutton {
3093: return '';
1.45 albertel 3094: }
1.34 albertel 3095:
1.428 raeburn 3096: sub practice_problem_header {
3097: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3098: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3099: '</span>';
3100: }
3101:
1.479 raeburn 3102: sub randomizetry_problem_header {
3103: my ($problemstatus,$reqtries) = @_;
3104: my ($header,$text);
3105: if ($reqtries > 1) {
3106: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3107: if (($problemstatus eq 'no') ||
3108: ($problemstatus eq 'no_feedback_ever')) {
3109: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3110: } else {
3111: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3112: }
3113: } else {
3114: $header = &mt('New Problem Variation Each Try');
3115: if (($problemstatus eq 'no') ||
3116: ($problemstatus eq 'no_feedback_ever')) {
3117: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3118:
3119: } else {
3120: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3121: }
3122: }
3123: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3124: '<span class="LC_info">'.$text.'</span><hr />';
3125: }
3126:
3127: sub randomizetry_part_header {
3128: my ($problemstatus,$reqtries,$num) = @_;
3129: my ($header,$text);
3130: if ($reqtries eq 'none') {
3131: $header = &mt('No Question Variation');
3132: $text = &mt('For this question there will no new variation after a try.');
3133: } elsif ($reqtries > 1) {
3134: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3135: if (($problemstatus eq 'no') ||
3136: ($problemstatus eq 'no_feedback_ever')) {
3137: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3138: } else {
3139: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3140: }
3141: } else {
3142: $header = &mt('New Question Variation For Each Try');
3143: if (($problemstatus eq 'no') ||
3144: ($problemstatus eq 'no_feedback_ever')) {
3145: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3146: } else {
3147: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3148: }
3149: }
3150: my $output;
3151: if ($num > 1) {
3152: $output .= '<hr />';
3153: }
3154: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3155: '<span class="LC_info">'.$text.'</span><br /><br />';
3156: return $output;
3157: }
3158:
1.1 albertel 3159: 1;
3160: __END__
1.435 jms 3161:
3162: =pod
3163:
3164: =back
3165:
3166: =cut
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