Annotation of loncom/homework/structuretags.pm, revision 1.541
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.541 ! damieng 4: # $Id: structuretags.pm,v 1.540 2015/10/05 02:35:40 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.531 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.531 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.532 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.520 raeburn 314:
315: var submithandled = 0;
1.521 raeburn 316: var keypresshandled = 0;
1.531 raeburn 317: var postsubmit = '$postsubmit';
1.520 raeburn 318:
1.531 raeburn 319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
1.521 raeburn 322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 325: keypresshandled = 1;
1.531 raeburn 326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 331: \$("#"+buttonId).trigger("click");
1.521 raeburn 332: }
333: }
334: }
335: });
336:
1.531 raeburn 337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 339: var buttonId = this.id;
1.531 raeburn 340: var timeout = $jstimeout;
1.520 raeburn 341: if (submithandled == 0) {
342: submithandled = 1;
1.531 raeburn 343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 344: "color": "black","padding": "2px"}) ;
1.531 raeburn 345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 346: if (buttonId != "all_submit") {
1.531 raeburn 347: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 348: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 349: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 350: }
1.520 raeburn 351: }
1.522 raeburn 352: } else {
1.531 raeburn 353: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 354: }
1.531 raeburn 355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 358: event.preventDefault();
1.531 raeburn 359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
1.520 raeburn 376: return true;
377: }
378: }
379: });
1.531 raeburn 380: }
1.520 raeburn 381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
393: form.problemmode.value = probmode;
394: form.submit();
395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
420: my %textarea_args = (
421: dragmath => 'math',
422: );
423: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 424: }
1.478 raeburn 425: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 426: my ($needs_upload,$partlist);
1.495 raeburn 427: my ($symb)= &Apache::lonnet::whichuser();
428: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 429: if ($is_task) {
1.495 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 431: } else {
432: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 433: unless ($env{'request.state'} eq 'construct') {
434: my $navmap = Apache::lonnavmaps::navmap->new();
435: if (ref($navmap)) {
436: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 437: my $is_page;
438: if (ref($mapres)) {
439: $is_page = $mapres->is_page();
440: }
441: unless ($is_page) {
1.495 raeburn 442: $needs_upload = 1;
443: }
1.528 raeburn 444: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
445: my $res = $navmap->getBySymb($symb);
446: if (ref($res)) {
447: $partlist = $res->parts();
448: }
449: }
1.495 raeburn 450: }
451: }
1.493 raeburn 452: } else {
453: unless ($env{'request.state'} eq 'construct') {
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (ref($navmap)) {
1.495 raeburn 456: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 457: my $is_page;
458: if (ref($mapres)) {
459: $is_page = $mapres->is_page();
460: }
1.528 raeburn 461: if ($is_page) {
462: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
463: my $res = $navmap->getBySymb($symb);
464: if (ref($res)) {
465: $partlist = $res->parts();
466: }
467: }
468: } else {
1.495 raeburn 469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
1.528 raeburn 471: $partlist = $res->parts();
1.495 raeburn 472: if (ref($partlist) eq 'ARRAY') {
473: foreach my $part (@{$partlist}) {
474: my @types = $res->responseType($part);
475: my @ids = $res->responseIds($part);
476: for (my $i=0; $i < scalar(@ids); $i++) {
477: if ($types[$i] eq 'essay') {
478: my $partid = $part.'_'.$ids[$i];
479: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
480: $needs_upload = 1;
481: last;
482: }
1.493 raeburn 483: }
484: }
485: }
1.495 raeburn 486: }
487: }
1.493 raeburn 488: }
489: }
490: }
491: }
1.495 raeburn 492: if ($needs_upload) {
1.538 musolffc 493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
494: .'<script type="text/javascript"
495: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 496: }
1.478 raeburn 497: }
1.425 raeburn 498:
1.344 albertel 499: my %body_args;
500: if (defined($found{'html'})) {
501: $body_args{'skip_phases'}{'head'}=1;
502: } else {
1.343 albertel 503:
1.345 albertel 504: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 505:
1.379 albertel 506: $extra_head .= &Apache::londefdef::generate_css_links();
507:
1.384 albertel 508: if ($env{'request.state'} eq 'construct') {
1.343 albertel 509: $extra_head.=&Apache::edit::js_change_detection().
510: "<script type=\"text/javascript\">\n".
511: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
512: &Apache::loncommon::browser_and_searcher_javascript().
513: "\n</script>\n";
1.525 raeburn 514: if ($target eq 'edit') {
515: $extra_head .= &Apache::edit::js_update_linknum();
516: }
1.343 albertel 517: }
1.159 albertel 518: }
1.343 albertel 519:
1.446 bisitz 520: my $pageheader = '';
1.344 albertel 521: if (defined($found{'body'})) {
522: $body_args{'skip_phases'}{'body'}=1;
523: } elsif (!defined($found{'body'})
524: && $env{'request.state'} eq 'construct') {
1.343 albertel 525: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 526: # Breadcrumbs for Authoring Space
1.450 bisitz 527: &Apache::lonhtmlcommon::clear_breadcrumbs();
528: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 529: 'text' => 'Authoring Space',
1.497 raeburn 530: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 531: });
1.460 droeschl 532: # breadcrumbs (and tools) will be created
533: # in start_page->bodytag->innerregister
534:
1.450 bisitz 535: # FIXME Where are we?
536: # &Apache::lonhtmlcommon::add_breadcrumb({
537: # 'text' => 'Problem Editing', # 'Problem Testing'
538: # 'href' => '',
539: # });
1.460 droeschl 540: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 541: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 542: }
1.272 albertel 543: } elsif (!defined($found{'body'})) {
1.343 albertel 544: my %add_entries;
1.159 albertel 545: my $background=&Apache::lonxml::get_param('background',$parstack,
546: $safeeval);
1.343 albertel 547: if ($background ne '' ) {
548: $add_entries{'background'} = $background;
549: }
1.344 albertel 550:
1.290 albertel 551: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
552: $safeeval);
1.446 bisitz 553: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 554:
1.446 bisitz 555: $body_args{'bgcolor'} = $bgcolor;
556: # $body_args{'no_title'} = 1;
557: $body_args{'force_register'} = 1;
558: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 559: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 560: $body_args{'only_body'} = 1;
1.518 raeburn 561: } elsif ($target eq 'web') {
562: $body_args{'print_suppress'} = 1;
1.446 bisitz 563: }
1.344 albertel 564: }
1.365 albertel 565: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 566: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
567: \%body_args);
1.446 bisitz 568: $page_start .= $pageheader;
1.462 raeburn 569: if (!defined($found{'body'})
570: && $env{'request.state'} ne 'construct'
571: && ($target eq 'web' || $target eq 'webgrade')) {
572:
573: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
574: if ($symb eq '' && !$publicuser) {
575: $page_start .= '<p class="LC_info">'
576: .&mt('Browsing resource, all submissions are temporary.')
577: .'</p>';
1.457 bisitz 578: }
1.344 albertel 579: }
580:
1.409 albertel 581: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 582: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 583: }
584: my $form_tag_start;
585: if (!defined($found{'form'})) {
1.337 albertel 586: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 587: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 588: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 589: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 590: $form_tag_start.=$uri.'" ';
591: if ($target eq 'edit') {
592: $form_tag_start.=&Apache::edit::form_change_detection();
593: }
1.493 raeburn 594: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
595: my ($path,$multiresp) =
596: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 597: if (($is_task) || ($needs_upload)) {
598: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 599: }
1.368 albertel 600: $form_tag_start.='>'."\n";
1.355 albertel 601:
602: if ($symb =~ /\S/) {
603: $symb=
604: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
605: $form_tag_start.=
1.368 albertel 606: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 607: }
1.159 albertel 608: }
1.528 raeburn 609: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 610: }
611:
1.141 matthew 612: #use Time::HiRes();
1.105 albertel 613: sub get_resource_name {
1.159 albertel 614: my ($parstack,$safeeval)=@_;
1.388 foxr 615: my $name;
1.204 albertel 616: if (defined($Apache::lonhomework::name)) {
1.388 foxr 617: $name = $Apache::lonhomework::name;
618: } else {
619: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 620: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 621: if ($name eq '') {
622: $name=&Apache::lonnet::EXT('resource.title');
623: if ($name eq 'con_lost') { $name = ''; }
624: }
625: if ($name!~/\S+/) {
626: $name=$env{'request.uri'};
627: $name=~s-.*/([^/]+)$-$1-;
628: }
629: # The name has had html tags escaped:
630:
631: $name=~s/</</gs;
632: $name=~s/>/>/gs;
633:
634: $Apache::lonhomework::name=$name;
1.204 albertel 635: }
1.159 albertel 636: return $name;
1.105 albertel 637: }
638:
639: sub setup_rndseed {
1.528 raeburn 640: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 641: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 642: my ($questiontype,$set_safespace,$rndseed);
643: if ($target eq 'analyze') {
644: $questiontype = $env{'form.grade_questiontype'};
645: }
646: unless (defined($questiontype)) {
647: $questiontype = $Apache::lonhomework::type;
648: }
1.333 albertel 649: if ($env{'request.state'} eq "construct"
650: || $symb eq ''
651: || $Apache::lonhomework::type eq 'practice'
652: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 653: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 654: ['rndseed']);
1.284 albertel 655: $rndseed=$env{'form.rndseed'};
1.159 albertel 656: if (!$rndseed) {
1.162 albertel 657: $rndseed=$Apache::lonhomework::history{'rndseed'};
658: if (!$rndseed) {
659: $rndseed=time;
660: }
1.284 albertel 661: $env{'form.rndseed'}=$rndseed;
1.162 albertel 662: }
1.479 raeburn 663: if (($env{'request.state'} eq "construct") &&
664: ($Apache::lonhomework::type eq 'randomizetry')) {
665: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
666: if ($tries) {
667: $rndseed += $tries;
668: }
1.480 raeburn 669: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 670: }
1.374 albertel 671: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
672: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 673: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 674: srand(time);
675: $rndseed=int(rand(2100000000));
1.284 albertel 676: $env{'form.rndseed'}=$rndseed;
677: delete($env{'form.resetdata'});
678: delete($env{'form.newrandomization'});
1.159 albertel 679: }
1.488 www 680: $rndseed=~s/\,/\:/g;
681: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 682: if (defined($rndseed)) {
683: my ($c1,$c2)=split(/\:/,$rndseed);
684: unless ($c2) { $c2=0; }
685: unless (($c1==int($c1)) && ($c2==int($c2))) {
686: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
687: }
1.187 albertel 688: }
1.247 albertel 689: if ($Apache::lonhomework::history{'resource.CODE'}) {
690: $rndseed=&Apache::lonnet::rndseed();
691: }
1.479 raeburn 692: $set_safespace = 1;
693: } elsif ($questiontype eq 'randomizetry') {
694: if ($target eq 'analyze') {
695: if (defined($env{'form.grade_rndseed'})) {
696: $rndseed = $env{'form.grade_rndseed'};
697: }
698: }
699: unless (($target eq 'analyze') && (defined($rndseed))) {
700: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 701: my $partfortries = $Apache::inputtags::part;
702: if (ref($probpartlist) eq 'ARRAY') {
703: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
704: $partfortries = $probpartlist->[0];
705: }
706: }
707: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 708: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
709: $curr_try ++;
710: }
711: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
712: $rndseed = $1;
713: }
714: if ($curr_try) {
1.528 raeburn 715: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 716: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
717: my $inc = int(($curr_try-1)/$reqtries);
718: $rndseed += $inc;
719: } else {
720: $rndseed += $curr_try;
721: }
722: }
723: }
724: $set_safespace = 1;
1.528 raeburn 725: if ($target eq 'grade') {
726: $Apache::lonhomework::rawrndseed = $rndseed;
727: }
1.479 raeburn 728: }
729: if ($set_safespace) {
730: if ($safeeval) {
731: &Apache::lonxml::debug("Setting rndseed to $rndseed");
732: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
733: }
734: }
735: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
736: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 737: }
738: return $rndseed;
1.105 albertel 739: }
740:
1.268 albertel 741: sub remember_problem_state {
742: return '
1.284 albertel 743: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
744: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
745: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 746: }
747:
1.487 www 748: sub problem_edit_action_button {
749: my ($name,$action,$accesskey,$text,$flag)=@_;
750: my $actionscript="setmode(this.form,'$action')";
751: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
752: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
753: }
754:
1.423 www 755: sub problem_edit_buttons {
1.487 www 756: my ($mode)=@_;
1.535 droeschl 757: # Buttons that save
758: my $result = '<div style="float:right">';
759: if ($mode eq 'editxml') {
760: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
761: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
762: } else {
763: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
764: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
765: }
766: $result.="\n</div>\n";
1.487 www 767: # Buttons that do not save
1.535 droeschl 768: $result .= '<div>'.
1.487 www 769: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
770: if ($mode eq 'editxml') {
771: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
772: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
773: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
774: } else {
775: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
776: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
777: }
778: $result.="\n</div>";
779: return $result;
1.423 www 780: }
781:
782: sub problem_edit_header {
1.527 golterma 783: my ($mode)=@_;
784: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 785: &remember_problem_state('edit').'
1.527 golterma 786: <div class="LC_edit_problem_header">
787: <div class="LC_edit_problem_header_title">
788: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
789: </div><div class="LC_edit_actionbar" id="actionbar">'.
790: '<input type="hidden" name="problemmode" value="saveedit" />'.
791: &problem_edit_buttons();
792:
1.535 droeschl 793: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 794: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
795: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
796:
797: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
798: <script type="text/javascript">
799: // unless internet explorer
800: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
801: $(document).ready(
802: function() {
803: $(\'.LC_edit_actionbar\').scrollToFixed(
804: {
805: fixed: function(){
1.535 droeschl 806: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
807: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 808: }
809: }
810: );
811: }
812: );
813: }
814: </script>
815: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
816: return $return;
1.105 albertel 817: }
818:
819: sub problem_edit_footer {
1.527 golterma 820: my $resource = $env{'request.ambiguous'};
1.412 albertel 821: return '</td></tr></table><br />
822: <div class="LC_edit_problem_footer">
1.453 bisitz 823: <hr />'.
1.423 www 824: &problem_edit_buttons().'
1.459 bisitz 825: <hr style="clear:both;" />
1.527 golterma 826: <script type="text/javascript">
827: restoreState("'.$resource.'");
828: restoreScrollPosition("'.$resource.'");
829: </script>
1.412 albertel 830: </div>
831: '.
1.342 albertel 832: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 833: }
834:
1.235 albertel 835: sub option {
836: my ($value,$name) = @_;
837: my $result ="<option value='".$value."' ";
1.284 albertel 838: if ($env{'form.'.$name} eq $value) {
1.235 albertel 839: $result.=" selected='on' ";
840: }
841: $result.='>';
842: return $result;
843: }
844:
1.105 albertel 845: sub problem_web_to_edit_header {
1.159 albertel 846: my ($rndseed)=@_;
1.406 albertel 847: my $result .= '<div class="LC_edit_problem_header">';
848:
849: if (!$Apache::lonhomework::parsing_a_task) {
850: $result .=
851: '<div class="LC_edit_problem_header_title">'.
852: &mt('Problem Testing').
853: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
854: '</div>';
855: } else {
856: $result .=
857: '<div class="LC_edit_problem_header_title">'.
858: &mt('Task Testing').
859: '</div>';
860: }
861:
1.315 albertel 862: my $show_all_foils_text =
863: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 864: &mt('Show All Instances')
865: : &mt('Show All Foils');
1.315 albertel 866:
1.452 bisitz 867: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
868: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 869: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 870: $show_all.= ' /> '.$show_all_foils_text
871: .'</label></span>';
1.406 albertel 872:
873:
1.384 albertel 874:
1.406 albertel 875: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 876: if (!$Apache::lonhomework::parsing_a_task) {
877: $result.="
1.406 albertel 878: <div class='LC_edit_problem_header_row1'>
879: <span class=\"LC_nobreak\">
1.405 albertel 880: ".&mt("Problem Status:")."
1.235 albertel 881: <select name='problemstate'>
1.270 albertel 882: <option value=''></option>
1.235 albertel 883: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
884: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
885: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
886: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
887: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
888: </select>
1.406 albertel 889: </span>
890: <span class=\"LC_nobreak\">
1.405 albertel 891: ".&mt("Problem Type:")."
1.235 albertel 892: <select name='problemtype'>
1.270 albertel 893: <option value=''></option>
1.509 bisitz 894: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 895: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 896: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 897: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
898: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
899: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 900: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 901: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 902: </select>
1.406 albertel 903: </span>
904: $show_all
905: </div>
906: <div class='LC_edit_problem_header_row2'>
907: <span class=\"LC_nobreak\">
1.405 albertel 908: ".&mt("Feedback Mode:")."
1.235 albertel 909: <select name='problemstatus'>
910: <option value=''></option>
1.242 albertel 911: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 912: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 913: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 914: </select>
1.406 albertel 915: </span>
916: ";
917:
1.376 albertel 918: } elsif ($Apache::lonhomework::parsing_a_task) {
919: $result.="
1.406 albertel 920: <div class='LC_edit_problem_header_row1'>
921: <span class=\"LC_nobreak\">
1.405 albertel 922: ".&mt("Problem Status:")."
1.376 albertel 923: <select name='problemstate'>
924: <option value=''></option>
925: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
926: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
927: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
928: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
929: </select>
1.406 albertel 930: </span>
931: $show_all
932: ";
933: }
934: $result.='
935: <span class="LC_nobreak">
936: '.&mt('Apply style file: ').'
937: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
938: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
939: </span>
1.422 www 940: </div>
941: <div class="LC_edit_problem_header_row1">'.
942: &Apache::lonxml::renderingoptions().'
1.406 albertel 943: </div>
944: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
945: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
946: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
947: </div>
1.453 bisitz 948: <hr />
1.406 albertel 949: <div class="LC_edit_problem_header_randomize_row">
950: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
951: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 952: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 953: $rndseed.'"
954: onchange="javascript:document.lonhomework.changerandseed.click()" />';
955:
956: if (!$Apache::lonhomework::parsing_a_task) {
957: my $numtoanalyze=$env{'form.numtoanalyze'};
958: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 959: $result .= '<span class="LC_nobreak">'.
960: &mt('[_1] for [_2] versions.',
1.416 raeburn 961: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 962: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
963: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 964: $numtoanalyze.'" size="5" />').
965: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
966: '</span>';
967:
1.313 albertel 968: }
1.406 albertel 969:
970: $result.='
971: </div>
1.453 bisitz 972: <hr />
1.447 bisitz 973: <div>';
1.416 raeburn 974: $result.='<input type="hidden" name="problemmode" value="view" />';
975: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
976: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
977: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
978: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 ! damieng 979: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
! 980: my $uri = $env{'request.uri'};
! 981: my $daxeurl = '/adm/daxe/daxe.html?config=config/loncapa_config.xml&file=/daxeopen'.$uri.
! 982: '&save=/daxesave';
! 983: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
! 984: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
! 985: }
1.408 albertel 986: $result.='
987: </div>
1.453 bisitz 988: <hr />
1.409 albertel 989: '.&Apache::lonxml::message_location().'
1.406 albertel 990: </div>';
1.159 albertel 991: return $result;
1.48 albertel 992: }
993:
1.65 albertel 994: sub initialize_storage {
1.357 albertel 995: my ($given_symb) = @_;
1.353 albertel 996: undef(%Apache::lonhomework::results);
997: undef(%Apache::lonhomework::history);
1.357 albertel 998: my ($symb,$courseid,$domain,$name) =
1.367 albertel 999: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1000:
1001: # anonymous users (CODEd exams) have no data
1002: if ($name eq 'anonymous'
1003: && !defined($domain)) {
1004: return;
1005: }
1006:
1.333 albertel 1007: if ($env{'request.state'} eq 'construct'
1008: || $symb eq ''
1009: || $Apache::lonhomework::type eq 'practice') {
1010:
1011: my $namespace = $symb || $env{'request.uri'};
1012: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1013: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1014: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1015: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1016: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1017: &Apache::lonxml::debug("Attempt reset");
1018: }
1.159 albertel 1019: %Apache::lonhomework::history=
1.333 albertel 1020: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1021: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1022: &Apache::lonxml::debug("Return message of $temp");
1023: } else {
1024: %Apache::lonhomework::history=
1025: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1026: }
1.353 albertel 1027:
1.159 albertel 1028: #ignore error conditions
1.526 raeburn 1029: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1030: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1031: }
1032:
1.435 jms 1033: =pod
1034:
1035: =item finalize_storage()
1036:
1.524 raeburn 1037: Stores away the result hash to a student's environment;
1.523 raeburn 1038: checks form.grade_ for specific values, otherwise stores
1039: to the running user's environment.
1.524 raeburn 1040:
1041: &check_correctness_changes() is called in two circumstances
1042: in which the results hash is to be stored permanently, for
1043: grading triggered by a student's submission, where feedback on
1044: correctness is to be provided to the student.
1045:
1046: 1. Immediately prior to storing the results hash
1047:
1048: To handle the case where a student's submission (and award) were
1049: stored after history was retrieved in &initialize_storage(), e.g.,
1050: if a student submitted answers in quick succession (e.g., from
1051: multiple tabs). &Apache::inputtags::hidealldata() is called for
1052: any parts with out-of-order storage (i.e., correct then incorrect,
1053: where awarded >= 1 when correct).
1054:
1055: 2. Immediately after storing the results hash
1056:
1057: To handle the case where lond on the student's homeserver returns
1058: delay:N -- where N is the number of transactions between the last
1059: retrieved in &initialize_storage() and the last stored immediately
1060: before permanent storage of the current transaction via
1061: lond::store_handler(). &Apache::grades::makehidden() is called
1062: for any parts with out-of-order storage (i.e., correct then incorrect,
1063: where awarded >= 1 when correct).
1064:
1065: Will call &store_aggregates() to increment totals for attempts,
1066: students, and corrects, if running user has student role.
1067:
1.435 jms 1068: =cut
1069:
1070:
1.65 albertel 1071: sub finalize_storage {
1.357 albertel 1072: my ($given_symb) = @_;
1.159 albertel 1073: my $result;
1.289 albertel 1074: if (%Apache::lonhomework::results) {
1.323 albertel 1075: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1076: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1077: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1078: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1079: if ($env{'request.state'} eq 'construct'
1080: || $symb eq ''
1081: || $Apache::lonhomework::type eq 'practice') {
1082: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1083: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1084: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1085: $namespace,'',$domain,$name);
1.159 albertel 1086: &Apache::lonxml::debug('Construct Store return message:'.$result);
1087: } else {
1.524 raeburn 1088: my ($laststore,$checkedparts,@parts,%postcorrect);
1089: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1090: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1091: (!defined($env{'form.grade_courseid'}))) {
1092: if ($Apache::lonhomework::history{'version'}) {
1093: $laststore = $Apache::lonhomework::history{'version'}.'='.
1094: $Apache::lonhomework::history{'timestamp'};
1095: } else {
1096: $laststore = '0=0';
1097: }
1098: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1099: if ($record{'version'}) {
1100: my ($newversion,$oldversion,$oldtimestamp);
1101: if ($Apache::lonhomework::history{'version'}) {
1102: $oldversion = $Apache::lonhomework::history{'version'};
1103: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1104: } else {
1105: $oldversion = 0;
1106: $oldtimestamp = 0;
1107: }
1108: if ($record{'version'} > $oldversion) {
1109: if ($record{'timestamp'} >= $oldtimestamp) {
1110: $laststore = $record{'version'}.'='.$record{'timestamp'};
1111: $newversion = $record{'version'} + 1;
1112: $checkedparts = 1;
1113: foreach my $key (keys(%Apache::lonhomework::results)) {
1114: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1115: my $part = $1;
1116: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1117: push(@parts,$part);
1118: }
1119: }
1120: }
1121: if (@parts) {
1122: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1123: \%record,\@parts,$newversion,
1124: $oldversion);
1125: if (@parts_to_hide) {
1126: foreach my $part (@parts_to_hide) {
1127: $postcorrect{$part} = 1;
1128: &Apache::inputtags::hidealldata($part);
1129: }
1130: }
1131: }
1132: }
1133: }
1134: }
1135: }
1.159 albertel 1136: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1137: $symb,$courseid,$domain,$name,$laststore);
1138: if ($result =~ /^delay\:(\d+)$/) {
1139: my $numtrans = $1;
1140: my ($oldversion) = split(/=/,$laststore);
1141: if ($numtrans) {
1142: my $newversion = $oldversion + 1 + $numtrans;
1143: my @possparts;
1144: if ($checkedparts) {
1145: foreach my $part (@parts) {
1146: unless ($postcorrect{$part}) {
1147: push(@possparts,$part);
1148: }
1149: }
1150: } else {
1151: foreach my $key (keys(%Apache::lonhomework::results)) {
1152: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1153: my $part = $1;
1154: unless ($postcorrect{$part}) {
1155: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1156: push(@possparts,$part);
1157: }
1158: }
1159: }
1160: }
1161: }
1162: if (@possparts) {
1163: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1164: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1165: \%newrecord,\@possparts,$newversion,
1166: $oldversion);
1167: if (@parts_to_hide) {
1168: my $partslist = join(',',@parts_to_hide);
1169: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1170: }
1171: }
1172: }
1173: }
1.159 albertel 1174: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1175: &store_aggregates($symb,$courseid);
1.159 albertel 1176: }
1.323 albertel 1177: } else {
1178: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1179: }
1.159 albertel 1180: return $result;
1.65 albertel 1181: }
1182:
1.435 jms 1183: =pod
1184:
1.524 raeburn 1185: =item check_correctness_changes()
1186:
1187: For all parts for which current results contain a solved status
1188: of "incorrect_attempted", check if there was a transaction in which
1189: solved was set to "correct_by_student" in the time since the last
1190: transaction (retrieved when &initialize_storage() was called i.e.,
1191: when &start_problem() was called), unless:
1192: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1193: (b) problemstatus is set to no or no_feedback_ever
1194: If such a transaction exists, and did not occur after "reset status"
1195: by a user with grading privileges, then the current transaction is an
1196: example of an out-of-order transaction (i.e., incorrect occurring after
1197: correct). Accordingly, the current transaction should be hidden.
1198:
1199: =cut
1200:
1201:
1202: sub check_correctness_changes {
1203: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1204: my @parts_to_hide;
1205: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1206: return @parts_to_hide;
1207: }
1208: if (@{$parts}) {
1209: my $usec;
1210: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1211: ($env{'request.course.id'} eq $courseid)) {
1212: $usec = $env{'request.course.sec'};
1213: } else {
1214: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1215: }
1216: foreach my $id (@{$parts}) {
1217: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1218: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1219: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1220: my $reset;
1221: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1222: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1223: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1224: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1225: $reset = 1;
1226: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1227: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1228: unless ($reset) {
1229: push(@parts_to_hide,$id);
1230: last;
1231: }
1232: }
1233: }
1234: }
1235: }
1236: return @parts_to_hide;
1237: }
1238:
1239: =pod
1240:
1.435 jms 1241: item store_aggregates()
1242:
1243: Sends hash of values to be incremented in nohist_resourcetracker.db
1244: for the course. Increments total number of attempts, unique students
1245: and corrects for each part for an instance of a problem, as appropriate.
1246:
1247: =cut
1248:
1.285 raeburn 1249: sub store_aggregates {
1250: my ($symb,$courseid) = @_;
1.479 raeburn 1251: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1252: my @parts;
1.288 albertel 1253: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1254: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1255: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1256: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1257: push(@parts, $1);
1.285 raeburn 1258: }
1259: }
1.286 albertel 1260: foreach my $part (@parts) {
1.470 raeburn 1261: if ($env{'request.role'} =~/^st/) {
1262: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1263: eq 'APPROX_ANS' ||
1264: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1265: eq 'EXACT_ANS') {
1266: $aggregate{$symb."\0".$part."\0correct"} = 1;
1267: }
1268: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1269: $aggregate{$symb."\0".$part."\0users"} = 1;
1270: } else {
1271: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1272: if ($last_reset) {
1273: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1274: $aggregate{$symb."\0".$part."\0users"} = 1;
1275: }
1276: }
1277: }
1278: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1279: }
1.470 raeburn 1280: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1281: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1282: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1283: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1284: $randtrycounter{$symb."\0".$part} = 1;
1285: } else {
1286: $anoncounter{$symb."\0".$part} = 1;
1287: }
1.537 raeburn 1288: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.':'};
1289: if ($needsrelease) {
1.470 raeburn 1290: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1291: if ($curr_required eq '') {
1.471 raeburn 1292: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1293: } else {
1294: my ($currmajor,$currminor) = split(/\./,$curr_required);
1295: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1296: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1297: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1298: }
1.292 raeburn 1299: }
1300: }
1.285 raeburn 1301: }
1302: }
1.526 raeburn 1303: if (keys(%aggregate) > 0) {
1.289 albertel 1304: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1305: $cdomain,$cname);
1306: }
1.472 raeburn 1307: if (keys(%anoncounter) > 0) {
1.481 raeburn 1308: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1309: $cdomain,$cname);
1.472 raeburn 1310: }
1.479 raeburn 1311: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1312: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1313: $cdomain,$cname);
1.479 raeburn 1314: }
1.292 raeburn 1315: }
1.289 albertel 1316:
1.65 albertel 1317: sub checkout_msg {
1.211 albertel 1318: my %lt=&Apache::lonlocal::texthash(
1319: 'resource'=>'The resource needs to be checked out',
1320: '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.',
1321: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1322: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1323: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1324: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1325: return (<<ENDCHECKOUT);
1.211 albertel 1326: <h2>$lt{'resource'}</h2>
1327: <p>$lt{'id_expln'}</p>
1.449 bisitz 1328: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1329: <form name="checkout" method="post" action="$uri">
1.91 albertel 1330: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1331: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1332: </form>
1333: ENDCHECKOUT
1334: }
1335:
1.252 albertel 1336: sub firstaccess_msg {
1.253 albertel 1337: my ($time,$symb)=@_;
1.414 albertel 1338: my $result;
1339: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1340: if ($interval[1] eq 'map') {
1341: my ($map)=&Apache::lonnet::decode_symb($symb);
1342: my $foldertitle=&Apache::lonnet::gettitle($map);
1343:
1344: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1345: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1346: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1347: ,$foldertitle,$time)."</p>";
1.414 albertel 1348: } elsif ($interval[1] eq 'course') {
1349: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1350: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1351: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1352: ,$course,$time)."</p>";
1.414 albertel 1353: } else {
1354: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1355: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1356: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1357: ,$title,$time)."</p>";
1.414 albertel 1358: }
1.352 albertel 1359: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1360: my $buttontext = &mt('Show Resource');
1361: my $timertext = &mt('Start Timer?');
1.414 albertel 1362: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1363: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1364: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1365: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1366: </form>
1367: ENDCHECKOUT
1.414 albertel 1368: return $result;
1.252 albertel 1369: }
1370:
1.204 albertel 1371: sub init_problem_globals {
1372: my ($type)=@_;
1373: #initialize globals
1.308 foxr 1374: # For problems, we start out in part 0 (outside a <part> tag).
1375: # and part 0 is used to describe the main body of the <problem>
1376: #
1.204 albertel 1377: if ($type eq 'problem') {
1378: $Apache::inputtags::part='0';
1379: @Apache::inputtags::partlist=('0');
1.405 albertel 1380: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1381: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1382:
1.266 albertel 1383: } elsif ($type eq 'library') {
1.204 albertel 1384: $Apache::inputtags::part='';
1385: @Apache::inputtags::partlist=();
1.405 albertel 1386: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1387: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1388:
1.304 albertel 1389: } elsif ($type eq 'Task') {
1390: $Apache::inputtags::part='0';
1391: @Apache::inputtags::partlist=('0');
1.405 albertel 1392: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1393: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1394: }
1.477 www 1395: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1396: @Apache::inputtags::responselist = ();
1397: @Apache::inputtags::importlist = ();
1398: @Apache::inputtags::previous=();
1399: @Apache::inputtags::previous_version=();
1.536 raeburn 1400: $Apache::inputtags::leniency='';
1.204 albertel 1401: $Apache::structuretags::printanswer='No';
1402: @Apache::structuretags::whileconds=();
1403: @Apache::structuretags::whilebody=();
1404: @Apache::structuretags::whileline=();
1405: $Apache::lonhomework::scantronmode=0;
1406: undef($Apache::lonhomework::name);
1.358 albertel 1407: undef($Apache::lonhomework::default_type);
1408: undef($Apache::lonhomework::type);
1.204 albertel 1409: }
1410:
1411: sub reset_problem_globals {
1412: my ($type)=@_;
1413: undef(%Apache::lonhomework::history);
1414: undef(%Apache::lonhomework::results);
1415: undef($Apache::inputtags::part);
1.536 raeburn 1416: undef($Apache::inputtags::leniency);
1.498 raeburn 1417: if ($type eq 'Task') {
1418: undef($Apache::inputtags::slot_name);
1.528 raeburn 1419: } elsif ($type eq 'problem') {
1420: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1421: }
1.208 albertel 1422: #don't undef this, lonhomework.pm takes care of this, we use this to
1423: #detect if we try to do 2 problems in one file
1424: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1425: undef($Apache::lonhomework::name);
1.358 albertel 1426: undef($Apache::lonhomework::default_type);
1427: undef($Apache::lonhomework::type);
1428: undef($Apache::lonhomework::scantronmode);
1429: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1430: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1431: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1432: }
1433:
1.241 albertel 1434: sub set_problem_state {
1.240 albertel 1435: my ($part)=@_;
1.284 albertel 1436: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1437: $Apache::lonhomework::history{"resource.$part.solved"}=
1438: 'correct_by_student';
1439: }
1440: }
1441:
1.241 albertel 1442: sub get_problem_status {
1443: my ($part)=@_;
1.267 albertel 1444: my $problem_status;
1.284 albertel 1445: if ($env{'request.state'} eq 'construct' &&
1446: defined($env{'form.problemstatus'})) {
1447: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1448: } else {
1449: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1450: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1451: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1452: }
1453: return $problem_status;
1454: }
1455:
1.9 albertel 1456: sub start_problem {
1.326 albertel 1457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1458:
1.311 foxr 1459: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1460: if (!$Apache::lonxml::metamode) {
1461: &Apache::lonxml::startredirection();
1462: }
1.311 foxr 1463:
1.308 foxr 1464: # Problems don't nest and we don't allow more than one <problem> in
1465: # a .problem file.
1466: #
1.184 albertel 1467: if ( $Apache::inputtags::part ne '' ||
1468: $Apache::lonhomework::parsing_a_problem) {
1469: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1470: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1471: return '';
1472: }
1.184 albertel 1473:
1474: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1475: &init_problem_globals('problem');
1.166 albertel 1476:
1.284 albertel 1477: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1478: $Apache::lonhomework::scantronmode=1;
1479: }
1.161 albertel 1480:
1.159 albertel 1481: if ($target ne 'analyze') {
1.415 raeburn 1482: my $type = &Apache::lonnet::EXT('resource.0.type');
1483: $Apache::lonhomework::type=$type;
1.284 albertel 1484: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1485: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1486: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1487: }
1.332 albertel 1488: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1489: }
1.164 albertel 1490: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1491: my $uri=$env{'request.uri'};
1.159 albertel 1492: if ($uri=~/\.(\w+)$/) {
1493: $Apache::lonhomework::type=$1;
1494: &Apache::lonxml::debug("Using type of $1");
1495: } else {
1496: $Apache::lonhomework::type='problem';
1497: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1498: }
1.87 albertel 1499: }
1.301 albertel 1500: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1501:
1.363 albertel 1502: &initialize_storage();
1.389 albertel 1503: if ($target ne 'analyze'
1504: && $env{'request.state'} eq 'construct') {
1505: &set_problem_state('0');
1506: }
1507:
1.366 albertel 1508: if ($target eq 'web') {
1509: &Apache::lonxml::debug(" grading history ");
1510: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1511: }
1.363 albertel 1512:
1.159 albertel 1513: #added vars to the scripting enviroment
1.213 albertel 1514: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1515: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1516: &Apache::run::run($expression,$safeeval);
1.159 albertel 1517: my $status;
1518: my $accessmsg;
1.508 raeburn 1519: my $resource_due;
1.540 raeburn 1520: my $ipused;
1.159 albertel 1521:
1.343 albertel 1522: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1523: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1524:
1525: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1526: $target eq 'tex') {
1527: if ($env{'form.markaccess'}) {
1528: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1529: my ($timelimit) = split(/_/,$interval[0]);
1530: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1531: }
1532:
1.540 raeburn 1533: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1.506 raeburn 1534: &Apache::lonhomework::check_slot_access('0','problem');
1535: push (@Apache::inputtags::status,$status);
1536: }
1537:
1.354 albertel 1538: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1539: || $target eq 'edit') {
1.528 raeburn 1540: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1541: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1542: $name);
1.528 raeburn 1543: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1544: my ($symb)= &Apache::lonnet::whichuser();
1545: my $navmap = Apache::lonnavmaps::navmap->new();
1546: if (ref($navmap)) {
1547: my $res = $navmap->getBySymb($symb);
1548: if (ref($res)) {
1549: $probpartlist = $res->parts();
1550: }
1551: }
1.350 albertel 1552: }
1553:
1.284 albertel 1554: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1555:
1.479 raeburn 1556: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1557: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1558: $target eq 'tex') {
1.479 raeburn 1559:
1.159 albertel 1560: #handle rand seed in construction space
1.528 raeburn 1561: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1562: if (($target eq 'grade') && &Apache::response::submitted()) {
1563: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1564: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1565: } else {
1566: my @parts;
1567: if (ref($probpartlist) eq 'ARRAY') {
1568: @parts = @{$probpartlist};
1569: }
1570: unless (@parts) {
1.529 raeburn 1571: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1572: }
1573: }
1574: }
1.367 albertel 1575: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1576:
1.333 albertel 1577: if ($env{'request.state'} ne "construct" &&
1578: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1579: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1580: $rndseed.'" />'.
1581: '<input type="submit" name="resetdata"
1582: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1583: if (exists($env{'form.username'})) {
1584: $form_tag_start.=
1.164 albertel 1585: '<input type="hidden" name="username"
1.284 albertel 1586: value="'.$env{'form.username'}.'" />';
1.334 albertel 1587: }
1.462 raeburn 1588: if ($env{'request.role.adv'}) {
1589: $form_tag_start.= ' <label class="LC_nobreak">'
1590: .'<input type="checkbox" name="showallfoils"';
1591: if (defined($env{'form.showallfoils'})) {
1592: $form_tag_start.=' checked="checked"';
1593: }
1594: $form_tag_start.= ' /> '
1595: .&mt('Show All Foils')
1596: .'</label>';
1597: }
1.417 www 1598: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1599: $form_tag_start.=&practice_problem_header();
1.417 www 1600: }
1.462 raeburn 1601: $form_tag_start.='<hr />';
1.479 raeburn 1602: } elsif (($env{'request.state'} ne "construct") &&
1603: ($Apache::lonhomework::type eq 'randomizetry') &&
1604: ($status eq 'CAN_ANSWER')) {
1605: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1606: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1607: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1608: }
1.324 albertel 1609:
1.159 albertel 1610: my $expression='$external::datestatus="'.$status.'";';
1611: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1612: &Apache::run::run($expression,$safeeval);
1613: &Apache::lonxml::debug("Got $status");
1.324 albertel 1614:
1.159 albertel 1615: if (( $status eq 'CLOSED' ) ||
1616: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1617: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1618: ( $status eq 'BANNED') ||
1.216 albertel 1619: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1620: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1621: ( $status eq 'NOTRESERVABLE') ||
1622: ( $status eq 'RESERVABLE') ||
1623: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1624: ( $status eq 'INVALID_ACCESS') ||
1625: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1626: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1627: $style);
1.159 albertel 1628: if ( $target eq "web" ) {
1.343 albertel 1629: my $msg;
1.159 albertel 1630: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1631: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1632: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1633: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1634: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1635: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1636: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1637: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1638: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1639: }
1.216 albertel 1640: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1641: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1642: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1643: $msg.=&checkout_msg();
1.252 albertel 1644: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1645: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1646: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1647: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1648: } elsif ($status eq 'RESERVABLE') {
1649: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1650: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1651: '<br />'.
1652: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1653: } elsif ($status eq 'RESERVABLE_LATER') {
1654: $msg.=&mt('Window to make a reservation will open [_1].',
1655: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1656: } elsif ($status eq 'NOTRESERVABLE') {
1657: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1658: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1659: if ($ipused) {
1660: $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");
1661: } else {
1662: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1663: &mt('Somebody else has already used this particular computer for that purpose.');
1664: }
1665: }
1.159 albertel 1666: $result.=$msg.'<br />';
1667: } elsif ($target eq 'tex') {
1.332 albertel 1668: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1669: : '\begin{minipage}{\textwidth}';
1.443 foxr 1670: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1671: $startminipage.'\vskip 0 mm';
1.159 albertel 1672: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1673: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1674: } else {
1.211 albertel 1675: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1676: }
1677: }
1.324 albertel 1678: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1679: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1680: $style);
1.324 albertel 1681: if ($target eq 'web') {
1.375 albertel 1682: $result .=
1683: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1684: } elsif ($target eq 'grade') {
1.540 raeburn 1685: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1686: 'problem');
1687: if ($checkinresult = /^error:/) {
1688: $result .= 'error';
1689: }
1.324 albertel 1690: }
1.159 albertel 1691: } elsif ($target eq 'web') {
1.508 raeburn 1692: if ($status eq 'CAN_ANSWER') {
1693: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1694: if ($slot_name ne '') {
1695: my $checked_in =
1696: $Apache::lonhomework::history{'resource.0.checkedin'};
1697: if ($checked_in eq '') {
1698: # unproctored slot access, self checkin
1.540 raeburn 1699: my $needsiptied;
1700: if (ref($slot)) {
1701: $needsiptied = $slot->{'iptied'};
1702: }
1703: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1704: $slot_name,$needsiptied);
1705: if ($check =~ /^error: /) {
1706: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1707: } else {
1708: $checked_in =
1709: $Apache::lonhomework::results{"resource.0.checkedin"};
1710: }
1.508 raeburn 1711: }
1712: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1713: if ($slot->{'starttime'} < time()) {
1714: if (!$resource_due) {
1715: $resource_due = $slot->{'endtime'};
1716: } elsif ($slot->{'endtime'} < $resource_due) {
1717: $resource_due = $slot->{'endtime'};
1718: }
1719: }
1720: }
1721: }
1722: if ($resource_due) {
1723: my $time_left = $resource_due - time();
1724: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1725: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1726: }
1727: }
1728: }
1.368 albertel 1729: $result.="\n $form_tag_start \t".
1.227 albertel 1730: '<input type="hidden" name="submitted" value="yes" />';
1731: # create a page header and exit
1.284 albertel 1732: if ($env{'request.state'} eq "construct") {
1733: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1734: if ($Apache::lonhomework::type eq 'practice') {
1735: $result.= '<input type="submit" name="resetdata" '.
1736: 'value="'.&mt('New Problem Variation').'" />'.
1737: &practice_problem_header().'<hr />';
1738: }
1.227 albertel 1739: }
1740: # if we are viewing someone else preserve that info
1.284 albertel 1741: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1742: foreach my $field ('symb','courseid','domain','username') {
1743: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1744: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1745: }
1.479 raeburn 1746: foreach my $field ('trial','questiontype') {
1747: if ($env{"form.grade_$field"} ne '') {
1748: $result .= '<input type="hidden" name="grade_'.$field.
1749: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1750: }
1751: }
1.159 albertel 1752: }
1.490 raeburn 1753: if ($env{'form.grade_imsexport'}) {
1754: $result = '';
1755: }
1.159 albertel 1756: } elsif ($target eq 'tex') {
1.319 foxr 1757: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1758: $result .= &select_metadata_hyphenation();
1759:
1.319 foxr 1760:
1.99 sakharuk 1761: }
1.159 albertel 1762: } elsif ($target eq 'edit') {
1.343 albertel 1763: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1764: $Apache::lonxml::warnings_error_header=
1765: &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 1766: my $temp=&Apache::edit::insertlist($target,$token);
1767: $result.=$temp;
1768: } elsif ($target eq 'modified') {
1769: $result=$token->[4];
1770: } else {
1771: # page_start returned a starting result, delete it if we don't need it
1772: $result = '';
1.99 sakharuk 1773: }
1.159 albertel 1774: return $result;
1.9 albertel 1775: }
1776:
1777: sub end_problem {
1.159 albertel 1778: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1779: my $result;
1.310 foxr 1780:
1.321 albertel 1781: if (!$Apache::lonxml::metamode) {
1782: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1783: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1784: }
1.319 foxr 1785:
1786: if ($target eq 'tex') {
1.321 albertel 1787: # Figure out the front matter and replace the
1788: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1789: # this in end_problem because whether or not we display due
1790: # dates depends on whether due dates have already been
1791: # displayed in the problem parts.
1792:
1.319 foxr 1793: my $frontmatter = '';
1794: my $startminipage = '';
1795: if (not $env{'form.problem_split'}=~/yes/) {
1796: $startminipage = '\begin{minipage}{\textwidth}';
1797: }
1798: my $id = $Apache::inputtags::part;
1799: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1800: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1801: my @packages = split(/,/,$packages);
1.319 foxr 1802: my $allow_print_points = 0;
1803: foreach my $partial_key (@packages) {
1804: if ($partial_key=~m/^part_0$/) {
1805: $allow_print_points=1;
1806: }
1807: }
1808: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1809: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1810: if (lc($env{'course.'.$env{'request.course.id'}.
1811: '.disableexampointprint'}) eq 'yes') {
1812: $allow_print_points=0;
1813: }
1814: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1815: 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 1816: &clear_required_languages();
1.319 foxr 1817: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1818: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1819:
1820: # Figure out what the due date is and if we need to print
1821: # it in the problem header. We have been logging the
1822: # last due date written to file.
1823:
1824: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1825: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1826: my $duedate_text = &mt('Due date: [_1]'
1827: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1828: my $temp_file;
1829: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1830:
1831: # Figure out what the last printed due date is or set it
1832: # to the epoch if no duedates have been printed.
1833:
1834: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1835: if (-e $filename) {
1836: $temp_file = Apache::File->new($filename);
1837: my @due_file = <$temp_file>;
1838: $due_file_content = $due_file[$#due_file];
1839: chomp $due_file_content;
1840: }
1841:
1842: # We display the due date iff it is not the same as the last
1843: # duedate in problem header ($due_file_content), and
1844: # none of our parts displayed a duedate.
1845: #
1846: my $parts_with_displayduedate;
1847: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1848: $parts_with_displayduedate =
1849: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1850: } else {
1851: $parts_with_displayduedate = 0;
1852: }
1853: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1854: $temp_file = Apache::File->new('>'.$filename);
1855: print $temp_file "$duetime\n";
1856: if (not $env{'request.symb'} =~ m/\.page_/) {
1857: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1858: $frontmatter .= $begin_doc.
1.448 bisitz 1859: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1860: } else {
1861: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1862: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1863: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1864: }
1.319 foxr 1865: }
1866: } else {
1.448 bisitz 1867: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1868: }
1869: } else {
1870: if (not $env{'request.symb'} =~ m/\.page_/) {
1871: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1872: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1873: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1874: }
1.319 foxr 1875: } else {
1.381 albertel 1876: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1877: }
1878: }
1879: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1880: }
1881:
1.159 albertel 1882: my $status=$Apache::inputtags::status['-1'];
1883: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1884: $target eq 'tex') {
1.249 albertel 1885: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1886: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1887: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1888: &Apache::inputtags::grade;
1.324 albertel 1889: } elsif ($status eq 'NEEDS_CHECKIN') {
1890: # no need to grade, and don't want to hide data
1.249 albertel 1891: } else {
1892: # move any submission data to .hidden
1893: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1894: }
1.159 albertel 1895: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1896: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1897: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1898: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1899: # if part is zero, no <part>s existed, so we need show the current
1900: # grading status
1901: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1902: $result.= $gradestatus;
1903: }
1904: if (
1.284 albertel 1905: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1906: ($target eq 'answer') || ($target eq 'tex')
1907: ) {
1.490 raeburn 1908: if (($target ne 'tex') &&
1909: ($env{'form.answer_output_mode'} ne 'tex') &&
1910: (!$env{'form.grade_imsexport'})) {
1.254 www 1911: $result.="</form>";
1.159 albertel 1912: }
1913: if ($target eq 'web') {
1.507 raeburn 1914: #
1915: # Closing </body></html> not added by end_page().
1916: # Added separately at end of this routine, after added
1917: # <script></script> so document will be valid xhtml.
1918: #
1919: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1920: 'notbody' => 1});
1.159 albertel 1921: } elsif ($target eq 'tex') {
1.178 sakharuk 1922: my $endminipage = '';
1.284 albertel 1923: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1924: $endminipage = '\end{minipage}';
1925: }
1.284 albertel 1926: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1927: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1928: } else {
1.262 sakharuk 1929: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1930: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1931: $result .= $endminipage.'\end{document} ';
1932: } else {
1.382 albertel 1933: $result .= $endminipage;
1.262 sakharuk 1934: }
1.159 albertel 1935: }
1936: }
1937: }
1.476 www 1938: if ($target eq 'web') {
1939: $result.=&Apache::functionplotresponse::init_script();
1940: }
1.159 albertel 1941: if ($target eq 'grade') {
1942: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1943: &finalize_storage();
1944: }
1.284 albertel 1945: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1946: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1947: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1948: # normally we get it from above, but in CSTR
1.172 albertel 1949: # we always show answer mode too.
1.159 albertel 1950: }
1951: } elsif ($target eq 'meta') {
1952: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1953: @Apache::inputtags::response=();
1.159 albertel 1954: $result=&Apache::response::mandatory_part_meta;
1955: }
1.215 albertel 1956: $result.=&Apache::response::meta_part_order();
1.258 albertel 1957: $result.=&Apache::response::meta_response_order();
1.159 albertel 1958: } elsif ($target eq 'edit') {
1959: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1960: $result .= &problem_edit_footer();
1.320 albertel 1961: } elsif ($target eq 'modified') {
1962: $result .= $token->[2];
1.159 albertel 1963: }
1.155 albertel 1964:
1.284 albertel 1965: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1966: &Apache::inputtags::check_for_duplicate_ids();
1967: }
1.204 albertel 1968:
1969: &reset_problem_globals('problem');
1.159 albertel 1970:
1.502 foxr 1971: #
1972: # This shouild be just above the return so that the
1973: # time put in the javascript is as late as possible in the
1974: # computation:
1975: #
1976: if ($target eq 'web') {
1977: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1978: #
1979: # Closing tags delayed so any <script></script> tags
1980: # not in head can appear inside body, for valid xhtml.
1981: #
1982: $result .= "</body>\n</html>";
1.502 foxr 1983: }
1.159 albertel 1984: return $result;
1.48 albertel 1985: }
1986:
1.108 albertel 1987:
1.48 albertel 1988: sub start_library {
1.159 albertel 1989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1990: my ($result,$form_tag_start);
1.371 albertel 1991: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1992: &init_problem_globals('library');
1993: $Apache::lonhomework::type='problem';
1994: }
1.159 albertel 1995: if ($target eq 'edit') {
1.343 albertel 1996: ($result,$form_tag_start)=
1997: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1998: 'Edit');
1999: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2000: my $temp=&Apache::edit::insertlist($target,$token);
2001: $result.=$temp;
2002: } elsif ($target eq 'modified') {
2003: $result=$token->[4];
1.340 albertel 2004: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2005: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2006: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2007: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2008: ($result,$form_tag_start)=
2009: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2010: $name);
1.479 raeburn 2011: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2012: $result.=" \n $form_tag_start".
1.159 albertel 2013: '<input type="hidden" name="submitted" value="yes" />';
2014: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2015: if ($Apache::lonhomework::type eq 'practice') {
2016: $result.= '<input type="submit" name="resetdata" '.
2017: 'value="'.&mt('New Problem Variation').'" />'.
2018: &practice_problem_header().'<hr />';
2019: }
1.159 albertel 2020: }
2021: return $result;
1.48 albertel 2022: }
2023:
2024: sub end_library {
1.159 albertel 2025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2026: my $result='';
2027: if ($target eq 'edit') {
2028: $result=&problem_edit_footer();
1.371 albertel 2029: } elsif ($target eq 'web'
2030: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2031: && $env{'request.state'} eq "construct") {
1.349 albertel 2032: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2033: }
1.371 albertel 2034: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2035: &reset_problem_globals('library');
2036: }
1.159 albertel 2037: return $result;
1.197 www 2038: }
2039:
2040: sub start_definetag {
1.326 albertel 2041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2042:
2043: my $result;
2044:
2045: my $name = $token->[2]->{'name'};
1.326 albertel 2046: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2047: if ($target eq 'web') {
2048: if ($name=~/^\//) {
2049: $result=
2050: '<br /><table class="LC_sty_end"><tr><th>'.
2051: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2052: } else {
2053: $result=
2054: '<br /><table class="LC_sty_begin"><tr><th>'.
2055: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2056: }
2057: $skip = &HTML::Entities::encode($skip, '<>&"');
2058: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2059: }
2060: return $result;
2061: }
2062:
2063: sub end_definetag {
2064: return '';
1.1 albertel 2065: }
2066:
2067: sub start_block {
1.201 albertel 2068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2069:
2070: my $result;
1.1 albertel 2071:
1.339 albertel 2072: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2073: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2074: my $code = $token->[2]->{'condition'};
1.385 albertel 2075: if (defined($code) && $code ne '') {
1.137 albertel 2076: if (!$Apache::lonxml::default_homework_loaded) {
2077: &Apache::lonxml::default_homework_load($safeeval);
2078: }
1.131 albertel 2079: $result = &Apache::run::run($code,$safeeval);
2080: &Apache::lonxml::debug("block :$code: returned :$result:");
2081: } else {
2082: $result='1';
2083: }
2084: if ( ! $result ) {
1.201 albertel 2085: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2086: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2087: }
2088: $result='';
2089: } elsif ($target eq 'edit') {
2090: $result .=&Apache::edit::tag_start($target,$token);
2091: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2092: $token,40);
2093: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2094: } elsif ($target eq 'modified') {
2095: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2096: $safeeval,'condition');
2097: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2098: }
1.131 albertel 2099: return $result;
1.1 albertel 2100: }
2101:
2102: sub end_block {
1.167 www 2103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2104: my $result;
2105: if ($target eq "edit") {
2106: $result.= &Apache::edit::tag_end($target,$token,'');
2107: }
2108: return $result;
2109: }
1.500 foxr 2110: #
2111: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2112: # ...
2113: # </languageblock>
2114: #
2115: # This declares the intent to provide content that can be rendered in the
2116: # set of languages in the include specificatino but not in the exclude
2117: # specification. If a currently preferred language is in the include list
2118: # the content in the <languageblock>...</languageblock> is rendered
2119: # If the currently preferred language is in the exclude list,
2120: # the content in the <languageblock>..></languageblock is not rendered.
2121: #
2122: # Pathalogical case handling:
2123: # - Include specified, without the preferred language but exclude specified
2124: # also without the preferred langauge results in rendering the block.
2125: # - Exclude specified without include and excluden not containing a
2126: # preferred language renders the block.
2127: # - Include and exclude both specifying the preferred language does not
2128: # render the block.
2129: # - If neither include/exclude is specified, the block gets rendered.
2130: #
2131: # This tag has no effect when target is in {edit, modified}
2132: #
1.167 www 2133: sub start_languageblock {
1.201 albertel 2134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2135:
1.500 foxr 2136: my $result = '';
1.167 www 2137:
1.339 albertel 2138: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2139: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2140: my $include = $token->[2]->{'include'};
2141: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2142: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2143:
2144: # This should not even happen, since we should at least have the server language
2145:
2146: if (!$preferred_languages[0]) {
2147: $preferred_languages[0]='en';
2148: }
2149:
2150: # Now loop over all languages in order of preference
2151:
2152: my $render;
1.398 www 2153: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2154:
2155: # If neither include/nor exlude is present the block is going
2156: # to get rendered.
2157:
1.399 www 2158: my $found=0;
1.500 foxr 2159: $render=1;
2160:
2161: # If include is specified, don't render the block
2162: # unless the preferred language is included in the set.
2163:
1.398 www 2164: if ($include) {
1.500 foxr 2165: $render=0;
1.398 www 2166: foreach my $included_language (split(/\,/,$include)) {
2167: if ($included_language eq $preferred_language) {
1.500 foxr 2168: $render=1;
1.399 www 2169: $found=1;
1.500 foxr 2170: last; # Only need to find the first.
1.398 www 2171: }
2172: }
2173: }
1.500 foxr 2174: # Do we have an exclude argument?
2175: # If so, and one of the languages matches a preferred language
2176: # inhibit rendering the block. Note that in the pathalogical case the
2177: # author has specified a preferred language in both the include and exclude
2178: # attribte exclude is preferred.
2179:
1.398 www 2180: if ($exclude) {
1.500 foxr 2181: $render=1;
1.398 www 2182: foreach my $excluded_language (split(/\,/,$exclude)) {
2183: if ($excluded_language eq $preferred_language) {
1.500 foxr 2184: $render=0;
1.399 www 2185: $found=1;
1.500 foxr 2186: last; # Only need to find the first.
1.398 www 2187: }
2188: }
2189: }
1.500 foxr 2190: if ($found) {
2191: last; # Done on any match of include or exclude.
2192: }
1.398 www 2193: }
1.500 foxr 2194: # If $render not true skip the entire block until </languageblock>
2195: #
2196:
2197: if ( ! $render ) {
1.201 albertel 2198: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2199: $style);
2200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2201: }
1.500 foxr 2202: # If $render is true, we've not skipped the contents of the <languageglock>
2203: # and the normal loncapa processing flow will render it as a matter of course.
2204:
1.167 www 2205: } elsif ($target eq 'edit') {
2206: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2207: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2208: $token,40);
1.211 albertel 2209: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2210: $token,40);
2211: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2212: } elsif ($target eq 'modified') {
2213: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2214: $safeeval,'include',
2215: 'exclude');
1.167 www 2216: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2217: }
2218: return $result;
2219: }
2220:
2221: sub end_languageblock {
1.170 www 2222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2223: my $result;
1.201 albertel 2224: if ($target eq "edit") {
1.170 www 2225: $result.= &Apache::edit::tag_end($target,$token,'');
2226: }
2227: return $result;
2228: }
1.500 foxr 2229: # languagblock specific tags:
2230: {
2231: # For chunks of a resource that has translations, this hash contains
2232: # the translations available indexed by language name.
2233: #
2234:
2235: my %available_texts;
1.170 www 2236:
1.500 foxr 2237: # <translated> starts a block of a resource that has multiple translations.
2238: # See the <lang> tag as well.
2239: # When </translated> is encountered if there is a translation for the
2240: # currently preferred language, that is rendered inthe web/tex/webgrade
2241: # targets. Otherwise, the default text is rendered.
2242: #
2243: # Note that <lang> is only registered for the duration of the
2244: # <translated>...</translated> block
2245: #
2246: # Pathalogical case handling:
2247: # - If there is no <lang> that specifies a 'default' and there is no
2248: # translation that matches a preferred language, nothing is rendered.
2249: # - Nested <translated>...</translated> might be linguistically supported by
2250: # XML due to the stack nature of tag registration(?) however the rendered
2251: # output will be incorrect because there is only one %available_texts
2252: # has and end_translated clears it.
2253: # - Material outside of a <lang>...</lang> block within the
2254: # <translated>...<translated> block won't render either e.g.:
2255: # <translated>
2256: # The following will be in your preferred langauge:
2257: # <lang which='en'>
2258: # This section in english
2259: # </lang>
2260: # <lang which='sgeiso'>
2261: # Hier es ist auf Deutsch.
2262: # </lang>
2263: # <lang which='sfriso'>
2264: # En Francais
2265: # </lang>
2266: # </translated>
2267: #
2268: # The introductory text prior to the first <lang> tag is not rendered.
2269: #
1.397 albertel 2270: sub start_translated {
2271: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2272: &Apache::lonxml::register('Apache::structuretags',('lang'));
2273: undef(%available_texts);
2274: }
2275:
2276: sub end_translated {
2277: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2278: my $result;
2279: #show the translation on viewable targets
2280: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2281: # or non-viewable targets, if it's embedded in something that
2282: # wants the output
2283: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2284: && &Apache::lonxml::in_redirection() ) ) {
2285: my @possibilities = keys(%available_texts);
2286: my $which =
2287: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2288: if ($target eq 'tex') {
2289: $result = &select_hyphenation($which);
2290: }
2291: $result .= $available_texts{$which};
2292: if ($target eq 'tex') {
2293: $result .= &select_metadata_hyphenation(); # Restore original language.
2294: }
1.397 albertel 2295: }
2296: undef(%available_texts);
2297: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2298: return $result;
2299: }
2300:
1.500 foxr 2301: # <lang [which='language-name'] [other='lang1,lang2...']>
2302: # Specifies that the block contained within it is a translation
2303: # for a specific language specified by the 'which' attribute. The
2304: # 'other' attribute can be used by itself or in conjunction with
2305: # which to specify this tag _may_ be used as a translation for some
2306: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2307: # specifying that the block provides a translation for US (primary)
2308: # Canadian, Australian and UK Englush.
2309: #
2310: # Comment: this seems a bit silly why not just support a list of languages
2311: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2312: #
2313: # Effect:
2314: # The material within the <lang>..</lang> block is stored in the
2315: # specified set of $available_texts hash entries, the appropriate one
2316: # is selected at </translated> time.
2317: #
2318: # Pathalogical case handling:
2319: # If a language occurs multiple times within a <translated> block,
2320: # only the last one is rendered e.g.:
2321: #
2322: # <translated>
2323: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2324: # Red green color blindness is quite common affecting about 7.8% of
2325: # the male population, but onloy about .65% of the female population.
2326: # </lang>
2327: # Red green colour blindness is quite common affecting about 7.8% of
2328: # the male population, but onloy about .65% of the female population.
2329: # <lang which='seniso', other='senisoCA,senisoAU'>
2330: # </translated>
2331: #
2332: # renders the correct spelling of color (colour) for people who have specified
2333: # a preferred language that is one of the British Commonwealth languages
2334: # even though those are also listed as valid selections for the US english
2335: # <lang> block.
2336: #
1.397 albertel 2337: sub start_lang {
2338: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2339: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2340: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2341: &Apache::lonxml::startredirection();
2342: }
2343: return '';
2344: }
2345:
2346: sub end_lang {
2347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2348: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2349: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2350: my $result = &Apache::lonxml::endredirection();
2351: my $which = &Apache::lonxml::get_param('which',$parstack,
2352: $safeeval);
1.431 raeburn 2353: if ($which=~/\w/) {
2354: $available_texts{$which} = $result;
2355: }
2356: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2357: $safeeval);
2358: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2359: if ($language=~/\w/) {
2360: $available_texts{$language} = $result;
2361: }
1.427 bisitz 2362: }
2363:
1.397 albertel 2364: }
2365: return '';
2366: }
1.500 foxr 2367: } # end langauge block specific tags.
2368:
1.397 albertel 2369:
1.170 www 2370: sub start_instructorcomment {
1.201 albertel 2371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2372:
2373: my $result;
2374:
1.339 albertel 2375: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2376: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2377: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2378: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2379: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2380: $parser,$style);
1.170 www 2381: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2382: }
2383: $result='';
2384: } elsif ($target eq 'edit') {
2385: $result .=&Apache::edit::tag_start($target,$token);
2386: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2387: }
2388: return $result;
2389: }
2390:
2391: sub end_instructorcomment {
1.159 albertel 2392: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2393: my $result;
2394: if ($target eq "edit") {
2395: $result.= &Apache::edit::tag_end($target,$token,'');
2396: }
2397: return $result;
1.4 tsai 2398: }
2399:
2400: sub start_while {
1.326 albertel 2401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2402:
1.160 albertel 2403: my $result;
1.339 albertel 2404: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2405: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2406: my $code = $token->[2]->{'condition'};
1.4 tsai 2407:
1.160 albertel 2408: push( @Apache::structuretags::whileconds, $code);
2409: if (!$Apache::lonxml::default_homework_loaded) {
2410: &Apache::lonxml::default_homework_load($safeeval);
2411: }
2412: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2413: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2414: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2415: push( @Apache::structuretags::whileline, $token->[5]);
2416: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2417: if ( $result ) {
2418: &Apache::lonxml::newparser($parser,\$bodytext);
2419: }
2420: } elsif ($target eq 'edit') {
2421: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2422: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2423: $token,40);
2424: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2425: } elsif ($target eq 'modified') {
2426: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2427: $safeeval,'condition');
2428: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2429: }
1.160 albertel 2430: return $result;
1.4 tsai 2431: }
2432:
2433: sub end_while {
1.159 albertel 2434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2435: my $result;
2436:
1.339 albertel 2437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2438: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2439: my $code = pop(@Apache::structuretags::whileconds);
2440: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2441: my $line = pop(@Apache::structuretags::whileline);
2442: my $return = &Apache::run::run($code,$safeeval);
2443: my $starttime=time;
2444: my $error=0;
2445: while ($return) {
2446: if (time-$starttime >
2447: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2448: $return = 0; $error=1; next;
1.161 albertel 2449: }
2450: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2451: if ($target eq 'grade' || $target eq 'answer' ||
2452: $target eq 'analyze') {
2453: # grade/answer/analyze should produce no output but if we
2454: # are redirecting, the redirecter should know what to do
2455: # with the output
2456: if (!$Apache::lonxml::redirection) { undef($result); }
2457: }
1.161 albertel 2458: $return = &Apache::run::run($code,$safeeval);
2459: }
1.516 bisitz 2460: if ($error) {
2461: &Apache::lonxml::error(
2462: '<pre>'
2463: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2464: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2465: .&mt('This occurred while running <while> on line [_1].',
2466: $line)
2467: .'</pre>');
2468: }
1.160 albertel 2469: } elsif ($target eq "edit") {
2470: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2471: }
1.160 albertel 2472: return $result;
1.1 albertel 2473: }
1.6 tsai 2474:
1.160 albertel 2475: # <randomlist show="1">
1.6 tsai 2476: # <tag1>..</tag1>
2477: # <tag2>..</tag2>
2478: # <tag3>..</tag3>
1.160 albertel 2479: # ...
1.6 tsai 2480: # </randomlist>
2481: sub start_randomlist {
1.326 albertel 2482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2483: my $result;
1.339 albertel 2484: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2485: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2486: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2487: my $b_parser= HTML::LCParser->new(\$body);
2488: $b_parser->xml_mode(1);
2489: $b_parser->marked_sections(1);
1.159 albertel 2490: my $b_tok;
2491: my @randomlist;
2492: my $list_item;
2493: while($b_tok = $b_parser->get_token() ) {
2494: if($b_tok->[0] eq 'S') { # start tag
2495: # get content of the tag until matching end tag
2496: # get all text upto the matching tag
2497: # and push the content into @randomlist
2498: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2499: $b_parser);
2500: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2501: push(@randomlist,$list_item);
2502: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2503: # $list_item</b>";
2504: }
2505: if($b_tok->[0] eq 'T') { # text
2506: # what to do with text in between tags?
2507: # print "<b>TEXT $b_tok->[1]</b><br />";
2508: }
2509: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2510: # print "<b>END-TAG $b_tok->[1]</b><br />";
2511: # }
2512: }
1.303 albertel 2513: if (@randomlist) {
2514: my @idx_arr = (0 .. $#randomlist);
2515: &Apache::structuretags::shuffle(\@idx_arr);
2516: my $bodytext = '';
2517: my $show=$#randomlist;
2518: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2519: $showarg--;
2520: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2521: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2522: my @currlist;
2523: my $part = $Apache::inputtags::part;
2524: if ($part ne '') {
2525: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2526: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2527: if (!(grep(/^\Q$part\E$/,@currlist))) {
2528: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2529: }
2530: } else {
2531: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2532: }
2533: }
2534: }
1.526 raeburn 2535: for my $i (0 .. $show) {
2536: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2537: }
2538: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2539: }
2540: } elsif ($target eq 'edit' ) {
2541: $result .=&Apache::edit::tag_start($target,$token);
2542: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2543: $token,5);
2544: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2545: } elsif ($target eq 'modified' ) {
2546: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2547: $safeeval,'show');
2548: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2549: }
2550: return $result;
1.7 tsai 2551: }
2552:
2553: sub shuffle {
2554: my $a=shift;
2555: my $i;
1.303 albertel 2556: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2557: &Apache::response::pushrandomnumber();
1.159 albertel 2558: for($i=@$a;--$i;) {
2559: my $j=int(&Math::Random::random_uniform() * ($i+1));
2560: next if $i == $j;
2561: @$a[$i,$j] = @$a[$j,$i];
2562: }
1.251 albertel 2563: &Apache::response::poprandomnumber();
1.7 tsai 2564: }
1.6 tsai 2565: }
2566:
2567: sub end_randomlist {
1.159 albertel 2568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2569: my $result;
2570: if ($target eq 'edit' ) {
2571: $result=&Apache::edit::tag_end($target,$token,
2572: 'End Randomly Parsed Block');
2573: }
2574: return $result;
1.6 tsai 2575: }
2576:
1.283 albertel 2577: sub ordered_show_check {
2578: my $last_part=$Apache::inputtags::partlist[-2];
2579: my $in_order=
2580: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2581: my $in_order_show=1;
2582: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2583: $in_order_show=&Apache::response::check_status($last_part);
2584: }
2585: return $in_order_show;
2586: }
2587:
1.469 www 2588:
2589: sub start_startpartmarker {
2590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2591: my $result='';
2592: if ($target eq 'edit') {
2593: $result=&Apache::edit::tag_start($target,$token);
2594: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2595: $result.=&Apache::edit::end_table();
2596:
2597: }
2598: return $result;
2599: }
2600:
2601: sub end_startpartmarker {
2602: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2603: my @result;
2604: if ($target eq 'edit') { $result[1]='no'; }
2605: return @result;
2606: }
2607:
2608: sub start_endpartmarker {
2609: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2610: my $result='';
2611: if ($target eq 'edit') {
2612: $result=&Apache::edit::tag_start($target,$token);
2613: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2614: $result.=&Apache::edit::end_table();
2615:
2616: }
2617: return $result;
2618: }
2619:
2620: sub end_endpartmarker {
2621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2622: my @result;
2623: if ($target eq 'edit') { $result[1]='no'; }
2624: return @result;
2625: }
2626:
2627:
2628:
2629:
2630:
1.11 albertel 2631: sub start_part {
1.326 albertel 2632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2633: if (!$Apache::lonxml::metamode) {
2634: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2635: # duedates.
2636: }
1.159 albertel 2637: my $result='';
1.386 albertel 2638: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2639: $Apache::inputtags::part=$id;
1.177 albertel 2640: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2641: $Apache::inputtags::leniency='';
1.177 albertel 2642: @Apache::inputtags::response=();
1.159 albertel 2643: @Apache::inputtags::previous=();
2644: @Apache::inputtags::previous_version=();
1.405 albertel 2645: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2646: &Apache::response::reset_params();
2647:
1.159 albertel 2648: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2649: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2650: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2651: if ($Apache::lonhomework::type eq 'randomizetry') {
2652: my $rndseed=&setup_rndseed($safeeval,$target);
2653: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2654: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2655: }
2656: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2657: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2658: }
1.283 albertel 2659: my $in_order_show=&ordered_show_check();
1.214 albertel 2660: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2661: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2662: &Apache::run::run($expression,$safeeval);
1.159 albertel 2663:
2664: if ($target eq 'meta') {
1.224 www 2665: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2666: return &Apache::response::mandatory_part_meta.
2667: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2668: } elsif ($target eq 'web' || $target eq 'grade' ||
2669: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2670: if ($hidden || !$in_order_show) {
1.326 albertel 2671: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2672: } else {
2673: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2674: push (@Apache::inputtags::status,$status);
2675: my $expression='$external::datestatus="'.$status.'";';
2676: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2677: &Apache::run::run($expression,$safeeval);
1.284 albertel 2678: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2679: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2680: }
1.216 albertel 2681: if (( $status eq 'CLOSED' ) ||
2682: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2683: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2684: ( $status eq 'BANNED') ||
2685: ( $status eq 'UNAVAILABLE') ||
2686: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2687: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2688: $style);
1.159 albertel 2689: if ( $target eq "web" ) {
1.211 albertel 2690: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2691: } elsif ( $target eq 'tex' ) {
1.284 albertel 2692: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2693: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2694: } else {
1.211 albertel 2695: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2696: }
1.159 albertel 2697: }
2698: } else {
2699: if ($target eq 'tex') {
1.284 albertel 2700: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2701: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2702: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2703: } else {
2704: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2705: }
1.195 sakharuk 2706: }
1.159 albertel 2707: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2708: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2709: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2710: my $allow_print_points = 0;
2711: foreach my $partial_key (@allkeys) {
1.230 albertel 2712: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2713: if ($1 ne '0') {$allow_print_points=1;}
2714: }
2715: }
1.275 albertel 2716: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2717: if (defined($maxtries) && $maxtries < 0) {
2718: $allow_print_points=0;
2719: }
1.302 albertel 2720: if (lc($env{'course.'.$env{'request.course.id'}.
2721: '.disableexampointprint'}) eq 'yes') {
2722: $allow_print_points=0;
2723: }
1.463 foxr 2724: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2725: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2726:
2727: }
1.233 www 2728: } elsif ($target eq 'web') {
1.479 raeburn 2729: if ($status eq 'CAN_ANSWER') {
2730: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2731: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2732: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2733: my $num = scalar(@Apache::inputtags::partlist)-1;
2734: if ($probrandomize eq 'randomizetry') {
2735: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2736: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2737: } else {
2738: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2739: if ($probrandtries ne $reqtries) {
2740: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2741: }
2742: }
2743: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2744: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2745: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2746: }
2747: }
1.475 raeburn 2748: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2749: }
2750: }
2751: }
2752: } elsif ($target eq 'edit') {
2753: $result.=&Apache::edit::tag_start($target,$token);
2754: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2755: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2756: ' '.
2757: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2758: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2759: } elsif ($target eq 'modified') {
2760: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2761: $safeeval,'id','display');
1.159 albertel 2762: if ($constructtag) {
1.225 albertel 2763: #limiting ids to only letters numbers, and space
1.224 www 2764: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2765: $result = &Apache::edit::rebuild_tag($token);
2766: }
2767: }
2768: return $result;
1.11 albertel 2769: }
2770:
2771: sub end_part {
1.159 albertel 2772: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2773: &Apache::lonxml::debug("in end_part $target ");
2774: my $status=$Apache::inputtags::status['-1'];
2775: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2776: my $in_order_show=&ordered_show_check();
1.321 albertel 2777: my $result;
2778: if (!$Apache::lonxml::metamode) {
2779: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2780: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2781: }
1.312 albertel 2782: if ($target eq 'grade') {
1.249 albertel 2783: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2784: !$hidden && $in_order_show) {
1.311 foxr 2785: $result.=&Apache::inputtags::grade;
1.249 albertel 2786: } else {
2787: # move any submission data to .hidden
2788: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2789: }
1.283 albertel 2790: } elsif (($target eq 'web' || $target eq 'tex') &&
2791: !$hidden && $in_order_show) {
1.159 albertel 2792: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2793: $target);
1.490 raeburn 2794: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2795: ($env{'form.grade_imsexport'})) {
1.212 albertel 2796: $gradestatus='';
2797: }
1.311 foxr 2798: $result.=$gradestatus;
1.265 sakharuk 2799: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2800: } elsif ($target eq 'edit') {
1.311 foxr 2801: $result.=&Apache::edit::end_table();
1.322 albertel 2802: } elsif ($target eq 'modified') {
2803: $result .= $token->[2];
1.159 albertel 2804: }
2805: pop @Apache::inputtags::status;
2806: $Apache::inputtags::part='';
1.536 raeburn 2807: $Apache::inputtags::leniency='';
1.295 albertel 2808: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2809: return $result;
1.11 albertel 2810: }
1.1 albertel 2811:
1.25 albertel 2812: sub start_preduedate {
1.326 albertel 2813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2814: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2815: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2816: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2817: if (!$Apache::lonhomework::scantronmode &&
2818: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2819: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2820: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2821: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2822: }
1.24 albertel 2823: }
1.159 albertel 2824: return '';
1.24 albertel 2825: }
2826:
1.25 albertel 2827: sub end_preduedate {
1.159 albertel 2828: return '';
1.24 albertel 2829: }
2830:
1.369 foxr 2831: # In all the modes where <postanswerdate> text is
2832: # displayable, all we do is eat up the text between the start/stop
2833: # tags if the conditions are not right to display it.
1.25 albertel 2834: sub start_postanswerdate {
1.326 albertel 2835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2836: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2837: &Apache::lonnet::allowed('pav',
2838: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2839: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2840: $target eq 'tex' ) {
1.300 albertel 2841: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2842: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2843: (($target eq 'tex') && !$pav)) {
1.326 albertel 2844: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2845: }
2846: }
2847: return '';
1.24 albertel 2848: }
2849:
1.25 albertel 2850: sub end_postanswerdate {
1.159 albertel 2851: return '';
1.24 albertel 2852: }
2853:
1.25 albertel 2854: sub start_notsolved {
1.326 albertel 2855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2856: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2857: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2858: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2859: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2860: if ($gradestatus =~ /^correct/ &&
2861: &Apache::response::show_answer()) {
1.159 albertel 2862: &Apache::lonxml::debug("skipping");
1.326 albertel 2863: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2864: }
1.24 albertel 2865: }
1.159 albertel 2866: return '';
1.24 albertel 2867: }
2868:
1.25 albertel 2869: sub end_notsolved {
1.159 albertel 2870: return '';
1.24 albertel 2871: }
2872:
2873: sub start_solved {
1.326 albertel 2874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2875: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2876: $target eq 'tex') {
2877: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2878: if ($gradestatus !~ /^correct/ ||
2879: !&Apache::response::show_answer()) {
1.326 albertel 2880: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2881: }
1.24 albertel 2882: }
1.159 albertel 2883: return '';
1.24 albertel 2884: }
2885:
2886: sub end_solved {
1.248 albertel 2887: return '';
2888: }
2889:
2890: sub start_problemtype {
1.326 albertel 2891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2892: my $result;
1.339 albertel 2893: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2894: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2895: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2896: if (!defined($mode)) { $mode='show'; }
2897: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2898: my $found=0;
2899: foreach my $type (split(',',$for)) {
2900: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2901: }
2902: if ($mode eq 'show' && !$found) {
1.326 albertel 2903: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2904: }
2905: if ($mode eq 'hide' && $found) {
1.326 albertel 2906: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2907: }
2908: } elsif ($target eq 'edit') {
2909: $result .=&Apache::edit::tag_start($target,$token);
2910: $result.=&Apache::edit::select_arg('Mode:','mode',
2911: [['show','Show'],
2912: ['hide','Hide']]
2913: ,$token);
2914: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2915: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2916: ['survey','Survey'],
1.465 raeburn 2917: ['surveycred','Survey (with credit)'],
2918: ['anonsurvey','Anonymous Survey'],
2919: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2920: ['problem','Homework Problem'],
1.479 raeburn 2921: ['practice','Practice Problem'],
2922: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2923: ,$token);
2924: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2925: } elsif ($target eq 'modified') {
2926: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2927: $safeeval,'mode','for');
2928: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2929: }
2930: return $result;
2931: }
2932:
2933: sub end_problemtype {
1.159 albertel 2934: return '';
1.24 albertel 2935: }
1.34 albertel 2936:
2937: sub start_startouttext {
1.159 albertel 2938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2939: my @result=(''.'');
2940: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2941:
2942: my $nesting =
2943: &Apache::lonxml::set_state('outtext',
2944: &Apache::lonxml::get_state('outtext')+1);
2945: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2946: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2947: }
1.159 albertel 2948: return (@result);
1.34 albertel 2949: }
1.159 albertel 2950:
1.34 albertel 2951: sub end_startouttext {
1.326 albertel 2952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2953: my $result='';
2954: my $text='';
2955: if ($target eq 'edit') {
1.424 foxr 2956: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2957: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 2958: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2959: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2960: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2961: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2962: .'</span></td>'
1.515 golterma 2963: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2964: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2965: .'</span></td>'
1.474 raeburn 2966: .'<td>'
2967: .&Apache::edit::insertlist($target,$token)
2968: .'</td>'
1.515 golterma 2969: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2970: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2971: &Apache::edit::end_row().
1.362 albertel 2972: &Apache::edit::start_spanning_row()."\n".
1.255 www 2973: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2974: }
2975: if ($target eq 'modified') {
1.219 albertel 2976: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2977: }
2978: if ($target eq 'tex') {
2979: $result .= '\noindent ';
2980: }
2981: return $result;
1.34 albertel 2982: }
1.159 albertel 2983:
1.34 albertel 2984: sub start_endouttext {
1.159 albertel 2985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2986: my $result='';
2987: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2988: if ($target eq "modified") {
2989: $result='<endouttext />'.
1.377 albertel 2990: &Apache::edit::handle_insertafter('startouttext');
2991: }
1.404 albertel 2992:
2993: my $nesting =
2994: &Apache::lonxml::set_state('outtext',
2995: &Apache::lonxml::get_state('outtext')-1);
2996: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2997: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2998: &Apache::lonxml::set_state('outtext', 0);
2999: }
1.159 albertel 3000: return $result;
1.34 albertel 3001: }
1.159 albertel 3002:
1.34 albertel 3003: sub end_endouttext {
1.159 albertel 3004: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3005: my @result=('','');
3006: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3007: return (@result);
1.34 albertel 3008: }
1.159 albertel 3009:
1.45 albertel 3010: sub delete_startouttext {
1.326 albertel 3011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3012: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3013: my $text=$$parser['-1']->get_text("/endouttext");
3014: my $ntoken=$$parser['-1']->get_token();
3015: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3016: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3017: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3018: # they did the last time round
3019: &Apache::lonxml::increasedepth($ntoken);
3020: &Apache::lonxml::decreasedepth($ntoken);
3021: return 1;
1.193 www 3022: }
3023:
3024: sub start_simpleeditbutton {
3025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3026: my $result='';
1.284 albertel 3027: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3028: ($target eq 'web') &&
1.330 albertel 3029: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3030: my $url=$env{'request.noversionuri'};
1.193 www 3031: $url=~s/\?.*$//;
1.367 albertel 3032: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3033: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3034: # $result='<p class="LC_warning">'
3035: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3036: # .&Apache::loncommon::help_open_topic('Caching')
3037: # .'</p>';
1.486 www 3038: $result.=&Apache::loncommon::head_subbox(
3039: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3040: .&Apache::lonhtmlcommon::add_item_funclist(
3041: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3042: .&mt('Edit').'</a>')
1.486 www 3043: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3044:
1.193 www 3045: }
3046: return $result;
3047: }
3048:
3049: sub end_simpleeditbutton {
3050: return '';
1.45 albertel 3051: }
1.34 albertel 3052:
1.428 raeburn 3053: sub practice_problem_header {
3054: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3055: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3056: '</span>';
3057: }
3058:
1.479 raeburn 3059: sub randomizetry_problem_header {
3060: my ($problemstatus,$reqtries) = @_;
3061: my ($header,$text);
3062: if ($reqtries > 1) {
3063: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3064: if (($problemstatus eq 'no') ||
3065: ($problemstatus eq 'no_feedback_ever')) {
3066: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3067: } else {
3068: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3069: }
3070: } else {
3071: $header = &mt('New Problem Variation Each Try');
3072: if (($problemstatus eq 'no') ||
3073: ($problemstatus eq 'no_feedback_ever')) {
3074: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3075:
3076: } else {
3077: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3078: }
3079: }
3080: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3081: '<span class="LC_info">'.$text.'</span><hr />';
3082: }
3083:
3084: sub randomizetry_part_header {
3085: my ($problemstatus,$reqtries,$num) = @_;
3086: my ($header,$text);
3087: if ($reqtries eq 'none') {
3088: $header = &mt('No Question Variation');
3089: $text = &mt('For this question there will no new variation after a try.');
3090: } elsif ($reqtries > 1) {
3091: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3092: if (($problemstatus eq 'no') ||
3093: ($problemstatus eq 'no_feedback_ever')) {
3094: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3095: } else {
3096: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3097: }
3098: } else {
3099: $header = &mt('New Question Variation For Each Try');
3100: if (($problemstatus eq 'no') ||
3101: ($problemstatus eq 'no_feedback_ever')) {
3102: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3103: } else {
3104: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3105: }
3106: }
3107: my $output;
3108: if ($num > 1) {
3109: $output .= '<hr />';
3110: }
3111: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3112: '<span class="LC_info">'.$text.'</span><br /><br />';
3113: return $output;
3114: }
3115:
1.1 albertel 3116: 1;
3117: __END__
1.435 jms 3118:
3119: =pod
3120:
3121: =back
3122:
3123: =cut
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