Annotation of loncom/homework/structuretags.pm, revision 1.542
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.542 ! raeburn 4: # $Id: structuretags.pm,v 1.541 2015/12/03 20:40:27 damieng Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.531 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.531 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.532 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.520 raeburn 314:
315: var submithandled = 0;
1.521 raeburn 316: var keypresshandled = 0;
1.531 raeburn 317: var postsubmit = '$postsubmit';
1.520 raeburn 318:
1.531 raeburn 319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
1.521 raeburn 322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 325: keypresshandled = 1;
1.531 raeburn 326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 331: \$("#"+buttonId).trigger("click");
1.521 raeburn 332: }
333: }
334: }
335: });
336:
1.531 raeburn 337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 339: var buttonId = this.id;
1.531 raeburn 340: var timeout = $jstimeout;
1.520 raeburn 341: if (submithandled == 0) {
342: submithandled = 1;
1.531 raeburn 343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 344: "color": "black","padding": "2px"}) ;
1.531 raeburn 345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 346: if (buttonId != "all_submit") {
1.531 raeburn 347: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 348: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 349: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 350: }
1.520 raeburn 351: }
1.522 raeburn 352: } else {
1.531 raeburn 353: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 354: }
1.531 raeburn 355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 358: event.preventDefault();
1.531 raeburn 359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
1.520 raeburn 376: return true;
377: }
378: }
379: });
1.531 raeburn 380: }
1.520 raeburn 381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
393: form.problemmode.value = probmode;
394: form.submit();
395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
420: my %textarea_args = (
421: dragmath => 'math',
422: );
423: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 424: }
1.478 raeburn 425: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 426: my ($needs_upload,$partlist);
1.495 raeburn 427: my ($symb)= &Apache::lonnet::whichuser();
428: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 429: if ($is_task) {
1.495 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 431: } else {
432: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 433: unless ($env{'request.state'} eq 'construct') {
434: my $navmap = Apache::lonnavmaps::navmap->new();
435: if (ref($navmap)) {
436: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 437: my $is_page;
438: if (ref($mapres)) {
439: $is_page = $mapres->is_page();
440: }
441: unless ($is_page) {
1.495 raeburn 442: $needs_upload = 1;
443: }
1.528 raeburn 444: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
445: my $res = $navmap->getBySymb($symb);
446: if (ref($res)) {
447: $partlist = $res->parts();
448: }
449: }
1.495 raeburn 450: }
451: }
1.493 raeburn 452: } else {
453: unless ($env{'request.state'} eq 'construct') {
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (ref($navmap)) {
1.495 raeburn 456: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 457: my $is_page;
458: if (ref($mapres)) {
459: $is_page = $mapres->is_page();
460: }
1.528 raeburn 461: if ($is_page) {
462: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
463: my $res = $navmap->getBySymb($symb);
464: if (ref($res)) {
465: $partlist = $res->parts();
466: }
467: }
468: } else {
1.495 raeburn 469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
1.528 raeburn 471: $partlist = $res->parts();
1.495 raeburn 472: if (ref($partlist) eq 'ARRAY') {
473: foreach my $part (@{$partlist}) {
474: my @types = $res->responseType($part);
475: my @ids = $res->responseIds($part);
476: for (my $i=0; $i < scalar(@ids); $i++) {
477: if ($types[$i] eq 'essay') {
478: my $partid = $part.'_'.$ids[$i];
479: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
480: $needs_upload = 1;
481: last;
482: }
1.493 raeburn 483: }
484: }
485: }
1.495 raeburn 486: }
487: }
1.493 raeburn 488: }
489: }
490: }
491: }
1.495 raeburn 492: if ($needs_upload) {
1.538 musolffc 493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
494: .'<script type="text/javascript"
495: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 496: }
1.478 raeburn 497: }
1.425 raeburn 498:
1.344 albertel 499: my %body_args;
500: if (defined($found{'html'})) {
501: $body_args{'skip_phases'}{'head'}=1;
502: } else {
1.343 albertel 503:
1.345 albertel 504: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 505:
1.379 albertel 506: $extra_head .= &Apache::londefdef::generate_css_links();
507:
1.384 albertel 508: if ($env{'request.state'} eq 'construct') {
1.343 albertel 509: $extra_head.=&Apache::edit::js_change_detection().
510: "<script type=\"text/javascript\">\n".
511: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
512: &Apache::loncommon::browser_and_searcher_javascript().
513: "\n</script>\n";
1.525 raeburn 514: if ($target eq 'edit') {
515: $extra_head .= &Apache::edit::js_update_linknum();
516: }
1.343 albertel 517: }
1.159 albertel 518: }
1.343 albertel 519:
1.446 bisitz 520: my $pageheader = '';
1.344 albertel 521: if (defined($found{'body'})) {
522: $body_args{'skip_phases'}{'body'}=1;
523: } elsif (!defined($found{'body'})
524: && $env{'request.state'} eq 'construct') {
1.343 albertel 525: if ($target eq 'web' || $target eq 'edit') {
1.542 ! raeburn 526: unless ($env{'form.inhibitmenu'} eq 'yes') {
! 527: # Breadcrumbs for Authoring Space
! 528: &Apache::lonhtmlcommon::clear_breadcrumbs();
! 529: &Apache::lonhtmlcommon::add_breadcrumb({
! 530: 'text' => 'Authoring Space',
! 531: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
! 532: });
! 533: # breadcrumbs (and tools) will be created
! 534: # in start_page->bodytag->innerregister
1.460 droeschl 535:
1.450 bisitz 536: # FIXME Where are we?
1.542 ! raeburn 537: # &Apache::lonhtmlcommon::add_breadcrumb({
! 538: # 'text' => 'Problem Editing', # 'Problem Testing'
! 539: # 'href' => '',
! 540: # });
! 541: $pageheader = &Apache::loncommon::head_subbox(
! 542: &Apache::loncommon::CSTR_pageheader());
! 543: }
! 544: }
1.272 albertel 545: } elsif (!defined($found{'body'})) {
1.343 albertel 546: my %add_entries;
1.159 albertel 547: my $background=&Apache::lonxml::get_param('background',$parstack,
548: $safeeval);
1.343 albertel 549: if ($background ne '' ) {
550: $add_entries{'background'} = $background;
551: }
1.344 albertel 552:
1.290 albertel 553: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
554: $safeeval);
1.446 bisitz 555: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 556:
1.446 bisitz 557: $body_args{'bgcolor'} = $bgcolor;
558: # $body_args{'no_title'} = 1;
559: $body_args{'force_register'} = 1;
560: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 561: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 562: $body_args{'only_body'} = 1;
1.518 raeburn 563: } elsif ($target eq 'web') {
564: $body_args{'print_suppress'} = 1;
1.446 bisitz 565: }
1.344 albertel 566: }
1.365 albertel 567: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 568: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
569: \%body_args);
1.446 bisitz 570: $page_start .= $pageheader;
1.462 raeburn 571: if (!defined($found{'body'})
572: && $env{'request.state'} ne 'construct'
573: && ($target eq 'web' || $target eq 'webgrade')) {
574:
575: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
576: if ($symb eq '' && !$publicuser) {
577: $page_start .= '<p class="LC_info">'
578: .&mt('Browsing resource, all submissions are temporary.')
579: .'</p>';
1.457 bisitz 580: }
1.344 albertel 581: }
582:
1.409 albertel 583: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 584: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 585: }
586: my $form_tag_start;
587: if (!defined($found{'form'})) {
1.337 albertel 588: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 589: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 590: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 591: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 592: $form_tag_start.=$uri.'" ';
593: if ($target eq 'edit') {
594: $form_tag_start.=&Apache::edit::form_change_detection();
595: }
1.493 raeburn 596: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
597: my ($path,$multiresp) =
598: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 599: if (($is_task) || ($needs_upload)) {
600: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 601: }
1.368 albertel 602: $form_tag_start.='>'."\n";
1.355 albertel 603:
604: if ($symb =~ /\S/) {
605: $symb=
606: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
607: $form_tag_start.=
1.368 albertel 608: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 609: }
1.159 albertel 610: }
1.528 raeburn 611: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 612: }
613:
1.141 matthew 614: #use Time::HiRes();
1.105 albertel 615: sub get_resource_name {
1.159 albertel 616: my ($parstack,$safeeval)=@_;
1.388 foxr 617: my $name;
1.204 albertel 618: if (defined($Apache::lonhomework::name)) {
1.388 foxr 619: $name = $Apache::lonhomework::name;
620: } else {
621: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 622: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 623: if ($name eq '') {
624: $name=&Apache::lonnet::EXT('resource.title');
625: if ($name eq 'con_lost') { $name = ''; }
626: }
627: if ($name!~/\S+/) {
628: $name=$env{'request.uri'};
629: $name=~s-.*/([^/]+)$-$1-;
630: }
631: # The name has had html tags escaped:
632:
633: $name=~s/</</gs;
634: $name=~s/>/>/gs;
635:
636: $Apache::lonhomework::name=$name;
1.204 albertel 637: }
1.159 albertel 638: return $name;
1.105 albertel 639: }
640:
641: sub setup_rndseed {
1.528 raeburn 642: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 643: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 644: my ($questiontype,$set_safespace,$rndseed);
645: if ($target eq 'analyze') {
646: $questiontype = $env{'form.grade_questiontype'};
647: }
648: unless (defined($questiontype)) {
649: $questiontype = $Apache::lonhomework::type;
650: }
1.333 albertel 651: if ($env{'request.state'} eq "construct"
652: || $symb eq ''
653: || $Apache::lonhomework::type eq 'practice'
654: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 655: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 656: ['rndseed']);
1.284 albertel 657: $rndseed=$env{'form.rndseed'};
1.159 albertel 658: if (!$rndseed) {
1.162 albertel 659: $rndseed=$Apache::lonhomework::history{'rndseed'};
660: if (!$rndseed) {
661: $rndseed=time;
662: }
1.284 albertel 663: $env{'form.rndseed'}=$rndseed;
1.162 albertel 664: }
1.479 raeburn 665: if (($env{'request.state'} eq "construct") &&
666: ($Apache::lonhomework::type eq 'randomizetry')) {
667: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
668: if ($tries) {
669: $rndseed += $tries;
670: }
1.480 raeburn 671: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 672: }
1.374 albertel 673: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
674: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 675: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 676: srand(time);
677: $rndseed=int(rand(2100000000));
1.284 albertel 678: $env{'form.rndseed'}=$rndseed;
679: delete($env{'form.resetdata'});
680: delete($env{'form.newrandomization'});
1.159 albertel 681: }
1.488 www 682: $rndseed=~s/\,/\:/g;
683: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 684: if (defined($rndseed)) {
685: my ($c1,$c2)=split(/\:/,$rndseed);
686: unless ($c2) { $c2=0; }
687: unless (($c1==int($c1)) && ($c2==int($c2))) {
688: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
689: }
1.187 albertel 690: }
1.247 albertel 691: if ($Apache::lonhomework::history{'resource.CODE'}) {
692: $rndseed=&Apache::lonnet::rndseed();
693: }
1.479 raeburn 694: $set_safespace = 1;
695: } elsif ($questiontype eq 'randomizetry') {
696: if ($target eq 'analyze') {
697: if (defined($env{'form.grade_rndseed'})) {
698: $rndseed = $env{'form.grade_rndseed'};
699: }
700: }
701: unless (($target eq 'analyze') && (defined($rndseed))) {
702: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 703: my $partfortries = $Apache::inputtags::part;
704: if (ref($probpartlist) eq 'ARRAY') {
705: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
706: $partfortries = $probpartlist->[0];
707: }
708: }
709: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 710: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
711: $curr_try ++;
712: }
713: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
714: $rndseed = $1;
715: }
716: if ($curr_try) {
1.528 raeburn 717: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 718: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
719: my $inc = int(($curr_try-1)/$reqtries);
720: $rndseed += $inc;
721: } else {
722: $rndseed += $curr_try;
723: }
724: }
725: }
726: $set_safespace = 1;
1.528 raeburn 727: if ($target eq 'grade') {
728: $Apache::lonhomework::rawrndseed = $rndseed;
729: }
1.479 raeburn 730: }
731: if ($set_safespace) {
732: if ($safeeval) {
733: &Apache::lonxml::debug("Setting rndseed to $rndseed");
734: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
735: }
736: }
737: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
738: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 739: }
740: return $rndseed;
1.105 albertel 741: }
742:
1.268 albertel 743: sub remember_problem_state {
744: return '
1.284 albertel 745: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
746: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
747: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 748: }
749:
1.487 www 750: sub problem_edit_action_button {
751: my ($name,$action,$accesskey,$text,$flag)=@_;
752: my $actionscript="setmode(this.form,'$action')";
753: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
754: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
755: }
756:
1.423 www 757: sub problem_edit_buttons {
1.487 www 758: my ($mode)=@_;
1.535 droeschl 759: # Buttons that save
760: my $result = '<div style="float:right">';
761: if ($mode eq 'editxml') {
762: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
763: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
764: } else {
765: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
766: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
767: }
768: $result.="\n</div>\n";
1.487 www 769: # Buttons that do not save
1.535 droeschl 770: $result .= '<div>'.
1.487 www 771: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
772: if ($mode eq 'editxml') {
773: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
774: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
775: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
776: } else {
777: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
778: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
779: }
780: $result.="\n</div>";
781: return $result;
1.423 www 782: }
783:
784: sub problem_edit_header {
1.527 golterma 785: my ($mode)=@_;
786: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 787: &remember_problem_state('edit').'
1.527 golterma 788: <div class="LC_edit_problem_header">
789: <div class="LC_edit_problem_header_title">
790: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
791: </div><div class="LC_edit_actionbar" id="actionbar">'.
792: '<input type="hidden" name="problemmode" value="saveedit" />'.
793: &problem_edit_buttons();
794:
1.535 droeschl 795: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 796: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
797: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
798:
799: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
800: <script type="text/javascript">
801: // unless internet explorer
802: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
803: $(document).ready(
804: function() {
805: $(\'.LC_edit_actionbar\').scrollToFixed(
806: {
807: fixed: function(){
1.535 droeschl 808: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
809: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 810: }
811: }
812: );
813: }
814: );
815: }
816: </script>
817: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
818: return $return;
1.105 albertel 819: }
820:
821: sub problem_edit_footer {
1.527 golterma 822: my $resource = $env{'request.ambiguous'};
1.412 albertel 823: return '</td></tr></table><br />
824: <div class="LC_edit_problem_footer">
1.453 bisitz 825: <hr />'.
1.423 www 826: &problem_edit_buttons().'
1.459 bisitz 827: <hr style="clear:both;" />
1.527 golterma 828: <script type="text/javascript">
829: restoreState("'.$resource.'");
830: restoreScrollPosition("'.$resource.'");
831: </script>
1.412 albertel 832: </div>
833: '.
1.342 albertel 834: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 835: }
836:
1.235 albertel 837: sub option {
838: my ($value,$name) = @_;
839: my $result ="<option value='".$value."' ";
1.284 albertel 840: if ($env{'form.'.$name} eq $value) {
1.235 albertel 841: $result.=" selected='on' ";
842: }
843: $result.='>';
844: return $result;
845: }
846:
1.105 albertel 847: sub problem_web_to_edit_header {
1.159 albertel 848: my ($rndseed)=@_;
1.406 albertel 849: my $result .= '<div class="LC_edit_problem_header">';
850:
851: if (!$Apache::lonhomework::parsing_a_task) {
852: $result .=
853: '<div class="LC_edit_problem_header_title">'.
854: &mt('Problem Testing').
855: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
856: '</div>';
857: } else {
858: $result .=
859: '<div class="LC_edit_problem_header_title">'.
860: &mt('Task Testing').
861: '</div>';
862: }
863:
1.315 albertel 864: my $show_all_foils_text =
865: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 866: &mt('Show All Instances')
867: : &mt('Show All Foils');
1.315 albertel 868:
1.452 bisitz 869: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
870: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 871: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 872: $show_all.= ' /> '.$show_all_foils_text
873: .'</label></span>';
1.406 albertel 874:
875:
1.384 albertel 876:
1.406 albertel 877: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 878: if (!$Apache::lonhomework::parsing_a_task) {
879: $result.="
1.406 albertel 880: <div class='LC_edit_problem_header_row1'>
881: <span class=\"LC_nobreak\">
1.405 albertel 882: ".&mt("Problem Status:")."
1.235 albertel 883: <select name='problemstate'>
1.270 albertel 884: <option value=''></option>
1.235 albertel 885: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
886: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
887: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
888: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
889: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
890: </select>
1.406 albertel 891: </span>
892: <span class=\"LC_nobreak\">
1.405 albertel 893: ".&mt("Problem Type:")."
1.235 albertel 894: <select name='problemtype'>
1.270 albertel 895: <option value=''></option>
1.509 bisitz 896: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 897: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 898: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 899: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
900: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
901: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 902: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 903: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 904: </select>
1.406 albertel 905: </span>
906: $show_all
907: </div>
908: <div class='LC_edit_problem_header_row2'>
909: <span class=\"LC_nobreak\">
1.405 albertel 910: ".&mt("Feedback Mode:")."
1.235 albertel 911: <select name='problemstatus'>
912: <option value=''></option>
1.242 albertel 913: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 914: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 915: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 916: </select>
1.406 albertel 917: </span>
918: ";
919:
1.376 albertel 920: } elsif ($Apache::lonhomework::parsing_a_task) {
921: $result.="
1.406 albertel 922: <div class='LC_edit_problem_header_row1'>
923: <span class=\"LC_nobreak\">
1.405 albertel 924: ".&mt("Problem Status:")."
1.376 albertel 925: <select name='problemstate'>
926: <option value=''></option>
927: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
928: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
929: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
930: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
931: </select>
1.406 albertel 932: </span>
933: $show_all
934: ";
935: }
936: $result.='
937: <span class="LC_nobreak">
938: '.&mt('Apply style file: ').'
939: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
940: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
941: </span>
1.422 www 942: </div>
943: <div class="LC_edit_problem_header_row1">'.
944: &Apache::lonxml::renderingoptions().'
1.406 albertel 945: </div>
946: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
947: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
948: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
949: </div>
1.453 bisitz 950: <hr />
1.406 albertel 951: <div class="LC_edit_problem_header_randomize_row">
952: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
953: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 954: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 955: $rndseed.'"
956: onchange="javascript:document.lonhomework.changerandseed.click()" />';
957:
958: if (!$Apache::lonhomework::parsing_a_task) {
959: my $numtoanalyze=$env{'form.numtoanalyze'};
960: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 961: $result .= '<span class="LC_nobreak">'.
962: &mt('[_1] for [_2] versions.',
1.416 raeburn 963: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 964: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
965: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 966: $numtoanalyze.'" size="5" />').
967: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
968: '</span>';
969:
1.313 albertel 970: }
1.406 albertel 971:
972: $result.='
973: </div>
1.453 bisitz 974: <hr />
1.447 bisitz 975: <div>';
1.416 raeburn 976: $result.='<input type="hidden" name="problemmode" value="view" />';
977: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
978: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
979: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
980: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 981: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
982: my $uri = $env{'request.uri'};
983: my $daxeurl = '/adm/daxe/daxe.html?config=config/loncapa_config.xml&file=/daxeopen'.$uri.
984: '&save=/daxesave';
985: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
986: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
987: }
1.408 albertel 988: $result.='
989: </div>
1.453 bisitz 990: <hr />
1.409 albertel 991: '.&Apache::lonxml::message_location().'
1.406 albertel 992: </div>';
1.159 albertel 993: return $result;
1.48 albertel 994: }
995:
1.65 albertel 996: sub initialize_storage {
1.357 albertel 997: my ($given_symb) = @_;
1.353 albertel 998: undef(%Apache::lonhomework::results);
999: undef(%Apache::lonhomework::history);
1.357 albertel 1000: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1001: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1002:
1003: # anonymous users (CODEd exams) have no data
1004: if ($name eq 'anonymous'
1005: && !defined($domain)) {
1006: return;
1007: }
1008:
1.333 albertel 1009: if ($env{'request.state'} eq 'construct'
1010: || $symb eq ''
1011: || $Apache::lonhomework::type eq 'practice') {
1012:
1013: my $namespace = $symb || $env{'request.uri'};
1014: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1015: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1016: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1017: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1018: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1019: &Apache::lonxml::debug("Attempt reset");
1020: }
1.159 albertel 1021: %Apache::lonhomework::history=
1.333 albertel 1022: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1023: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1024: &Apache::lonxml::debug("Return message of $temp");
1025: } else {
1026: %Apache::lonhomework::history=
1027: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1028: }
1.353 albertel 1029:
1.159 albertel 1030: #ignore error conditions
1.526 raeburn 1031: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1032: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1033: }
1034:
1.435 jms 1035: =pod
1036:
1037: =item finalize_storage()
1038:
1.524 raeburn 1039: Stores away the result hash to a student's environment;
1.523 raeburn 1040: checks form.grade_ for specific values, otherwise stores
1041: to the running user's environment.
1.524 raeburn 1042:
1043: &check_correctness_changes() is called in two circumstances
1044: in which the results hash is to be stored permanently, for
1045: grading triggered by a student's submission, where feedback on
1046: correctness is to be provided to the student.
1047:
1048: 1. Immediately prior to storing the results hash
1049:
1050: To handle the case where a student's submission (and award) were
1051: stored after history was retrieved in &initialize_storage(), e.g.,
1052: if a student submitted answers in quick succession (e.g., from
1053: multiple tabs). &Apache::inputtags::hidealldata() is called for
1054: any parts with out-of-order storage (i.e., correct then incorrect,
1055: where awarded >= 1 when correct).
1056:
1057: 2. Immediately after storing the results hash
1058:
1059: To handle the case where lond on the student's homeserver returns
1060: delay:N -- where N is the number of transactions between the last
1061: retrieved in &initialize_storage() and the last stored immediately
1062: before permanent storage of the current transaction via
1063: lond::store_handler(). &Apache::grades::makehidden() is called
1064: for any parts with out-of-order storage (i.e., correct then incorrect,
1065: where awarded >= 1 when correct).
1066:
1067: Will call &store_aggregates() to increment totals for attempts,
1068: students, and corrects, if running user has student role.
1069:
1.435 jms 1070: =cut
1071:
1072:
1.65 albertel 1073: sub finalize_storage {
1.357 albertel 1074: my ($given_symb) = @_;
1.159 albertel 1075: my $result;
1.289 albertel 1076: if (%Apache::lonhomework::results) {
1.323 albertel 1077: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1078: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1079: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1080: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1081: if ($env{'request.state'} eq 'construct'
1082: || $symb eq ''
1083: || $Apache::lonhomework::type eq 'practice') {
1084: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1085: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1086: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1087: $namespace,'',$domain,$name);
1.159 albertel 1088: &Apache::lonxml::debug('Construct Store return message:'.$result);
1089: } else {
1.524 raeburn 1090: my ($laststore,$checkedparts,@parts,%postcorrect);
1091: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1092: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1093: (!defined($env{'form.grade_courseid'}))) {
1094: if ($Apache::lonhomework::history{'version'}) {
1095: $laststore = $Apache::lonhomework::history{'version'}.'='.
1096: $Apache::lonhomework::history{'timestamp'};
1097: } else {
1098: $laststore = '0=0';
1099: }
1100: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1101: if ($record{'version'}) {
1102: my ($newversion,$oldversion,$oldtimestamp);
1103: if ($Apache::lonhomework::history{'version'}) {
1104: $oldversion = $Apache::lonhomework::history{'version'};
1105: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1106: } else {
1107: $oldversion = 0;
1108: $oldtimestamp = 0;
1109: }
1110: if ($record{'version'} > $oldversion) {
1111: if ($record{'timestamp'} >= $oldtimestamp) {
1112: $laststore = $record{'version'}.'='.$record{'timestamp'};
1113: $newversion = $record{'version'} + 1;
1114: $checkedparts = 1;
1115: foreach my $key (keys(%Apache::lonhomework::results)) {
1116: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1117: my $part = $1;
1118: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1119: push(@parts,$part);
1120: }
1121: }
1122: }
1123: if (@parts) {
1124: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1125: \%record,\@parts,$newversion,
1126: $oldversion);
1127: if (@parts_to_hide) {
1128: foreach my $part (@parts_to_hide) {
1129: $postcorrect{$part} = 1;
1130: &Apache::inputtags::hidealldata($part);
1131: }
1132: }
1133: }
1134: }
1135: }
1136: }
1137: }
1.159 albertel 1138: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1139: $symb,$courseid,$domain,$name,$laststore);
1140: if ($result =~ /^delay\:(\d+)$/) {
1141: my $numtrans = $1;
1142: my ($oldversion) = split(/=/,$laststore);
1143: if ($numtrans) {
1144: my $newversion = $oldversion + 1 + $numtrans;
1145: my @possparts;
1146: if ($checkedparts) {
1147: foreach my $part (@parts) {
1148: unless ($postcorrect{$part}) {
1149: push(@possparts,$part);
1150: }
1151: }
1152: } else {
1153: foreach my $key (keys(%Apache::lonhomework::results)) {
1154: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1155: my $part = $1;
1156: unless ($postcorrect{$part}) {
1157: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1158: push(@possparts,$part);
1159: }
1160: }
1161: }
1162: }
1163: }
1164: if (@possparts) {
1165: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1166: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1167: \%newrecord,\@possparts,$newversion,
1168: $oldversion);
1169: if (@parts_to_hide) {
1170: my $partslist = join(',',@parts_to_hide);
1171: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1172: }
1173: }
1174: }
1175: }
1.159 albertel 1176: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1177: &store_aggregates($symb,$courseid);
1.159 albertel 1178: }
1.323 albertel 1179: } else {
1180: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1181: }
1.159 albertel 1182: return $result;
1.65 albertel 1183: }
1184:
1.435 jms 1185: =pod
1186:
1.524 raeburn 1187: =item check_correctness_changes()
1188:
1189: For all parts for which current results contain a solved status
1190: of "incorrect_attempted", check if there was a transaction in which
1191: solved was set to "correct_by_student" in the time since the last
1192: transaction (retrieved when &initialize_storage() was called i.e.,
1193: when &start_problem() was called), unless:
1194: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1195: (b) problemstatus is set to no or no_feedback_ever
1196: If such a transaction exists, and did not occur after "reset status"
1197: by a user with grading privileges, then the current transaction is an
1198: example of an out-of-order transaction (i.e., incorrect occurring after
1199: correct). Accordingly, the current transaction should be hidden.
1200:
1201: =cut
1202:
1203:
1204: sub check_correctness_changes {
1205: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1206: my @parts_to_hide;
1207: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1208: return @parts_to_hide;
1209: }
1210: if (@{$parts}) {
1211: my $usec;
1212: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1213: ($env{'request.course.id'} eq $courseid)) {
1214: $usec = $env{'request.course.sec'};
1215: } else {
1216: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1217: }
1218: foreach my $id (@{$parts}) {
1219: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1220: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1221: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1222: my $reset;
1223: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1224: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1225: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1226: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1227: $reset = 1;
1228: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1229: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1230: unless ($reset) {
1231: push(@parts_to_hide,$id);
1232: last;
1233: }
1234: }
1235: }
1236: }
1237: }
1238: return @parts_to_hide;
1239: }
1240:
1241: =pod
1242:
1.435 jms 1243: item store_aggregates()
1244:
1245: Sends hash of values to be incremented in nohist_resourcetracker.db
1246: for the course. Increments total number of attempts, unique students
1247: and corrects for each part for an instance of a problem, as appropriate.
1248:
1249: =cut
1250:
1.285 raeburn 1251: sub store_aggregates {
1252: my ($symb,$courseid) = @_;
1.479 raeburn 1253: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1254: my @parts;
1.288 albertel 1255: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1256: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1257: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1258: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1259: push(@parts, $1);
1.285 raeburn 1260: }
1261: }
1.286 albertel 1262: foreach my $part (@parts) {
1.470 raeburn 1263: if ($env{'request.role'} =~/^st/) {
1264: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1265: eq 'APPROX_ANS' ||
1266: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1267: eq 'EXACT_ANS') {
1268: $aggregate{$symb."\0".$part."\0correct"} = 1;
1269: }
1270: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1271: $aggregate{$symb."\0".$part."\0users"} = 1;
1272: } else {
1273: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1274: if ($last_reset) {
1275: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1276: $aggregate{$symb."\0".$part."\0users"} = 1;
1277: }
1278: }
1279: }
1280: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1281: }
1.470 raeburn 1282: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1283: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1284: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1285: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1286: $randtrycounter{$symb."\0".$part} = 1;
1287: } else {
1288: $anoncounter{$symb."\0".$part} = 1;
1289: }
1.537 raeburn 1290: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.':'};
1291: if ($needsrelease) {
1.470 raeburn 1292: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1293: if ($curr_required eq '') {
1.471 raeburn 1294: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1295: } else {
1296: my ($currmajor,$currminor) = split(/\./,$curr_required);
1297: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1298: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1299: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1300: }
1.292 raeburn 1301: }
1302: }
1.285 raeburn 1303: }
1304: }
1.526 raeburn 1305: if (keys(%aggregate) > 0) {
1.289 albertel 1306: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1307: $cdomain,$cname);
1308: }
1.472 raeburn 1309: if (keys(%anoncounter) > 0) {
1.481 raeburn 1310: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1311: $cdomain,$cname);
1.472 raeburn 1312: }
1.479 raeburn 1313: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1314: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1315: $cdomain,$cname);
1.479 raeburn 1316: }
1.292 raeburn 1317: }
1.289 albertel 1318:
1.65 albertel 1319: sub checkout_msg {
1.211 albertel 1320: my %lt=&Apache::lonlocal::texthash(
1321: 'resource'=>'The resource needs to be checked out',
1322: '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.',
1323: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1324: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1325: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1326: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1327: return (<<ENDCHECKOUT);
1.211 albertel 1328: <h2>$lt{'resource'}</h2>
1329: <p>$lt{'id_expln'}</p>
1.449 bisitz 1330: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1331: <form name="checkout" method="post" action="$uri">
1.91 albertel 1332: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1333: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1334: </form>
1335: ENDCHECKOUT
1336: }
1337:
1.252 albertel 1338: sub firstaccess_msg {
1.253 albertel 1339: my ($time,$symb)=@_;
1.414 albertel 1340: my $result;
1341: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1342: if ($interval[1] eq 'map') {
1343: my ($map)=&Apache::lonnet::decode_symb($symb);
1344: my $foldertitle=&Apache::lonnet::gettitle($map);
1345:
1346: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1347: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1348: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1349: ,$foldertitle,$time)."</p>";
1.414 albertel 1350: } elsif ($interval[1] eq 'course') {
1351: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1352: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1353: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1354: ,$course,$time)."</p>";
1.414 albertel 1355: } else {
1356: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1357: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1358: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1359: ,$title,$time)."</p>";
1.414 albertel 1360: }
1.352 albertel 1361: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1362: my $buttontext = &mt('Show Resource');
1363: my $timertext = &mt('Start Timer?');
1.414 albertel 1364: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1365: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1366: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1367: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1368: </form>
1369: ENDCHECKOUT
1.414 albertel 1370: return $result;
1.252 albertel 1371: }
1372:
1.204 albertel 1373: sub init_problem_globals {
1374: my ($type)=@_;
1375: #initialize globals
1.308 foxr 1376: # For problems, we start out in part 0 (outside a <part> tag).
1377: # and part 0 is used to describe the main body of the <problem>
1378: #
1.204 albertel 1379: if ($type eq 'problem') {
1380: $Apache::inputtags::part='0';
1381: @Apache::inputtags::partlist=('0');
1.405 albertel 1382: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1383: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1384:
1.266 albertel 1385: } elsif ($type eq 'library') {
1.204 albertel 1386: $Apache::inputtags::part='';
1387: @Apache::inputtags::partlist=();
1.405 albertel 1388: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1389: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1390:
1.304 albertel 1391: } elsif ($type eq 'Task') {
1392: $Apache::inputtags::part='0';
1393: @Apache::inputtags::partlist=('0');
1.405 albertel 1394: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1395: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1396: }
1.477 www 1397: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1398: @Apache::inputtags::responselist = ();
1399: @Apache::inputtags::importlist = ();
1400: @Apache::inputtags::previous=();
1401: @Apache::inputtags::previous_version=();
1.536 raeburn 1402: $Apache::inputtags::leniency='';
1.204 albertel 1403: $Apache::structuretags::printanswer='No';
1404: @Apache::structuretags::whileconds=();
1405: @Apache::structuretags::whilebody=();
1406: @Apache::structuretags::whileline=();
1407: $Apache::lonhomework::scantronmode=0;
1408: undef($Apache::lonhomework::name);
1.358 albertel 1409: undef($Apache::lonhomework::default_type);
1410: undef($Apache::lonhomework::type);
1.204 albertel 1411: }
1412:
1413: sub reset_problem_globals {
1414: my ($type)=@_;
1415: undef(%Apache::lonhomework::history);
1416: undef(%Apache::lonhomework::results);
1417: undef($Apache::inputtags::part);
1.536 raeburn 1418: undef($Apache::inputtags::leniency);
1.498 raeburn 1419: if ($type eq 'Task') {
1420: undef($Apache::inputtags::slot_name);
1.528 raeburn 1421: } elsif ($type eq 'problem') {
1422: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1423: }
1.208 albertel 1424: #don't undef this, lonhomework.pm takes care of this, we use this to
1425: #detect if we try to do 2 problems in one file
1426: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1427: undef($Apache::lonhomework::name);
1.358 albertel 1428: undef($Apache::lonhomework::default_type);
1429: undef($Apache::lonhomework::type);
1430: undef($Apache::lonhomework::scantronmode);
1431: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1432: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1433: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1434: }
1435:
1.241 albertel 1436: sub set_problem_state {
1.240 albertel 1437: my ($part)=@_;
1.284 albertel 1438: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1439: $Apache::lonhomework::history{"resource.$part.solved"}=
1440: 'correct_by_student';
1441: }
1442: }
1443:
1.241 albertel 1444: sub get_problem_status {
1445: my ($part)=@_;
1.267 albertel 1446: my $problem_status;
1.284 albertel 1447: if ($env{'request.state'} eq 'construct' &&
1448: defined($env{'form.problemstatus'})) {
1449: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1450: } else {
1451: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1452: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1453: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1454: }
1455: return $problem_status;
1456: }
1457:
1.9 albertel 1458: sub start_problem {
1.326 albertel 1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1460:
1.311 foxr 1461: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1462: if (!$Apache::lonxml::metamode) {
1463: &Apache::lonxml::startredirection();
1464: }
1.311 foxr 1465:
1.308 foxr 1466: # Problems don't nest and we don't allow more than one <problem> in
1467: # a .problem file.
1468: #
1.184 albertel 1469: if ( $Apache::inputtags::part ne '' ||
1470: $Apache::lonhomework::parsing_a_problem) {
1471: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1472: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1473: return '';
1474: }
1.184 albertel 1475:
1476: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1477: &init_problem_globals('problem');
1.166 albertel 1478:
1.284 albertel 1479: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1480: $Apache::lonhomework::scantronmode=1;
1481: }
1.161 albertel 1482:
1.159 albertel 1483: if ($target ne 'analyze') {
1.415 raeburn 1484: my $type = &Apache::lonnet::EXT('resource.0.type');
1485: $Apache::lonhomework::type=$type;
1.284 albertel 1486: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1487: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1488: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1489: }
1.332 albertel 1490: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1491: }
1.164 albertel 1492: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1493: my $uri=$env{'request.uri'};
1.159 albertel 1494: if ($uri=~/\.(\w+)$/) {
1495: $Apache::lonhomework::type=$1;
1496: &Apache::lonxml::debug("Using type of $1");
1497: } else {
1498: $Apache::lonhomework::type='problem';
1499: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1500: }
1.87 albertel 1501: }
1.301 albertel 1502: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1503:
1.363 albertel 1504: &initialize_storage();
1.389 albertel 1505: if ($target ne 'analyze'
1506: && $env{'request.state'} eq 'construct') {
1507: &set_problem_state('0');
1508: }
1509:
1.366 albertel 1510: if ($target eq 'web') {
1511: &Apache::lonxml::debug(" grading history ");
1512: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1513: }
1.363 albertel 1514:
1.159 albertel 1515: #added vars to the scripting enviroment
1.213 albertel 1516: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1517: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1518: &Apache::run::run($expression,$safeeval);
1.159 albertel 1519: my $status;
1520: my $accessmsg;
1.508 raeburn 1521: my $resource_due;
1.540 raeburn 1522: my $ipused;
1.159 albertel 1523:
1.343 albertel 1524: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1525: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1526:
1527: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1528: $target eq 'tex') {
1529: if ($env{'form.markaccess'}) {
1530: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1531: my ($timelimit) = split(/_/,$interval[0]);
1532: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1533: }
1534:
1.540 raeburn 1535: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1.506 raeburn 1536: &Apache::lonhomework::check_slot_access('0','problem');
1537: push (@Apache::inputtags::status,$status);
1538: }
1539:
1.354 albertel 1540: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1541: || $target eq 'edit') {
1.528 raeburn 1542: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1543: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1544: $name);
1.528 raeburn 1545: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1546: my ($symb)= &Apache::lonnet::whichuser();
1547: my $navmap = Apache::lonnavmaps::navmap->new();
1548: if (ref($navmap)) {
1549: my $res = $navmap->getBySymb($symb);
1550: if (ref($res)) {
1551: $probpartlist = $res->parts();
1552: }
1553: }
1.350 albertel 1554: }
1555:
1.284 albertel 1556: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1557:
1.479 raeburn 1558: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1559: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1560: $target eq 'tex') {
1.479 raeburn 1561:
1.159 albertel 1562: #handle rand seed in construction space
1.528 raeburn 1563: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1564: if (($target eq 'grade') && &Apache::response::submitted()) {
1565: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1566: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1567: } else {
1568: my @parts;
1569: if (ref($probpartlist) eq 'ARRAY') {
1570: @parts = @{$probpartlist};
1571: }
1572: unless (@parts) {
1.529 raeburn 1573: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1574: }
1575: }
1576: }
1.367 albertel 1577: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1578:
1.333 albertel 1579: if ($env{'request.state'} ne "construct" &&
1580: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1581: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1582: $rndseed.'" />'.
1583: '<input type="submit" name="resetdata"
1584: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1585: if (exists($env{'form.username'})) {
1586: $form_tag_start.=
1.164 albertel 1587: '<input type="hidden" name="username"
1.284 albertel 1588: value="'.$env{'form.username'}.'" />';
1.334 albertel 1589: }
1.462 raeburn 1590: if ($env{'request.role.adv'}) {
1591: $form_tag_start.= ' <label class="LC_nobreak">'
1592: .'<input type="checkbox" name="showallfoils"';
1593: if (defined($env{'form.showallfoils'})) {
1594: $form_tag_start.=' checked="checked"';
1595: }
1596: $form_tag_start.= ' /> '
1597: .&mt('Show All Foils')
1598: .'</label>';
1599: }
1.417 www 1600: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1601: $form_tag_start.=&practice_problem_header();
1.417 www 1602: }
1.462 raeburn 1603: $form_tag_start.='<hr />';
1.479 raeburn 1604: } elsif (($env{'request.state'} ne "construct") &&
1605: ($Apache::lonhomework::type eq 'randomizetry') &&
1606: ($status eq 'CAN_ANSWER')) {
1607: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1608: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1609: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1610: }
1.324 albertel 1611:
1.159 albertel 1612: my $expression='$external::datestatus="'.$status.'";';
1613: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1614: &Apache::run::run($expression,$safeeval);
1615: &Apache::lonxml::debug("Got $status");
1.324 albertel 1616:
1.159 albertel 1617: if (( $status eq 'CLOSED' ) ||
1618: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1619: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1620: ( $status eq 'BANNED') ||
1.216 albertel 1621: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1622: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1623: ( $status eq 'NOTRESERVABLE') ||
1624: ( $status eq 'RESERVABLE') ||
1625: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1626: ( $status eq 'INVALID_ACCESS') ||
1627: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1628: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1629: $style);
1.159 albertel 1630: if ( $target eq "web" ) {
1.343 albertel 1631: my $msg;
1.159 albertel 1632: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1633: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1634: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1635: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1636: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1637: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1638: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1639: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1640: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1641: }
1.216 albertel 1642: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1643: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1644: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1645: $msg.=&checkout_msg();
1.252 albertel 1646: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1647: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1648: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1649: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1650: } elsif ($status eq 'RESERVABLE') {
1651: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1652: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1653: '<br />'.
1654: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1655: } elsif ($status eq 'RESERVABLE_LATER') {
1656: $msg.=&mt('Window to make a reservation will open [_1].',
1657: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1658: } elsif ($status eq 'NOTRESERVABLE') {
1659: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1660: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1661: if ($ipused) {
1662: $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");
1663: } else {
1664: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1665: &mt('Somebody else has already used this particular computer for that purpose.');
1666: }
1667: }
1.159 albertel 1668: $result.=$msg.'<br />';
1669: } elsif ($target eq 'tex') {
1.332 albertel 1670: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1671: : '\begin{minipage}{\textwidth}';
1.443 foxr 1672: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1673: $startminipage.'\vskip 0 mm';
1.159 albertel 1674: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1675: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1676: } else {
1.211 albertel 1677: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1678: }
1679: }
1.324 albertel 1680: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1681: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1682: $style);
1.324 albertel 1683: if ($target eq 'web') {
1.375 albertel 1684: $result .=
1685: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1686: } elsif ($target eq 'grade') {
1.540 raeburn 1687: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1688: 'problem');
1689: if ($checkinresult = /^error:/) {
1690: $result .= 'error';
1691: }
1.324 albertel 1692: }
1.159 albertel 1693: } elsif ($target eq 'web') {
1.508 raeburn 1694: if ($status eq 'CAN_ANSWER') {
1695: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1696: if ($slot_name ne '') {
1697: my $checked_in =
1698: $Apache::lonhomework::history{'resource.0.checkedin'};
1699: if ($checked_in eq '') {
1700: # unproctored slot access, self checkin
1.540 raeburn 1701: my $needsiptied;
1702: if (ref($slot)) {
1703: $needsiptied = $slot->{'iptied'};
1704: }
1705: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1706: $slot_name,$needsiptied);
1707: if ($check =~ /^error: /) {
1708: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1709: } else {
1710: $checked_in =
1711: $Apache::lonhomework::results{"resource.0.checkedin"};
1712: }
1.508 raeburn 1713: }
1714: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1715: if ($slot->{'starttime'} < time()) {
1716: if (!$resource_due) {
1717: $resource_due = $slot->{'endtime'};
1718: } elsif ($slot->{'endtime'} < $resource_due) {
1719: $resource_due = $slot->{'endtime'};
1720: }
1721: }
1722: }
1723: }
1724: if ($resource_due) {
1725: my $time_left = $resource_due - time();
1726: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1727: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1728: }
1729: }
1730: }
1.368 albertel 1731: $result.="\n $form_tag_start \t".
1.227 albertel 1732: '<input type="hidden" name="submitted" value="yes" />';
1733: # create a page header and exit
1.284 albertel 1734: if ($env{'request.state'} eq "construct") {
1.542 ! raeburn 1735: unless ($env{'form.inhibitmenu'} eq 'yes') {
! 1736: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
! 1737: }
1.428 raeburn 1738: if ($Apache::lonhomework::type eq 'practice') {
1739: $result.= '<input type="submit" name="resetdata" '.
1740: 'value="'.&mt('New Problem Variation').'" />'.
1741: &practice_problem_header().'<hr />';
1742: }
1.227 albertel 1743: }
1744: # if we are viewing someone else preserve that info
1.284 albertel 1745: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1746: foreach my $field ('symb','courseid','domain','username') {
1747: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1748: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1749: }
1.479 raeburn 1750: foreach my $field ('trial','questiontype') {
1751: if ($env{"form.grade_$field"} ne '') {
1752: $result .= '<input type="hidden" name="grade_'.$field.
1753: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1754: }
1755: }
1.159 albertel 1756: }
1.490 raeburn 1757: if ($env{'form.grade_imsexport'}) {
1758: $result = '';
1759: }
1.159 albertel 1760: } elsif ($target eq 'tex') {
1.319 foxr 1761: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1762: $result .= &select_metadata_hyphenation();
1763:
1.319 foxr 1764:
1.99 sakharuk 1765: }
1.159 albertel 1766: } elsif ($target eq 'edit') {
1.343 albertel 1767: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1768: $Apache::lonxml::warnings_error_header=
1769: &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 1770: my $temp=&Apache::edit::insertlist($target,$token);
1771: $result.=$temp;
1772: } elsif ($target eq 'modified') {
1773: $result=$token->[4];
1774: } else {
1775: # page_start returned a starting result, delete it if we don't need it
1776: $result = '';
1.99 sakharuk 1777: }
1.159 albertel 1778: return $result;
1.9 albertel 1779: }
1780:
1781: sub end_problem {
1.159 albertel 1782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1783: my $result;
1.310 foxr 1784:
1.321 albertel 1785: if (!$Apache::lonxml::metamode) {
1786: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1787: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1788: }
1.319 foxr 1789:
1790: if ($target eq 'tex') {
1.321 albertel 1791: # Figure out the front matter and replace the
1792: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1793: # this in end_problem because whether or not we display due
1794: # dates depends on whether due dates have already been
1795: # displayed in the problem parts.
1796:
1.319 foxr 1797: my $frontmatter = '';
1798: my $startminipage = '';
1799: if (not $env{'form.problem_split'}=~/yes/) {
1800: $startminipage = '\begin{minipage}{\textwidth}';
1801: }
1802: my $id = $Apache::inputtags::part;
1803: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1804: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1805: my @packages = split(/,/,$packages);
1.319 foxr 1806: my $allow_print_points = 0;
1807: foreach my $partial_key (@packages) {
1808: if ($partial_key=~m/^part_0$/) {
1809: $allow_print_points=1;
1810: }
1811: }
1812: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1813: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1814: if (lc($env{'course.'.$env{'request.course.id'}.
1815: '.disableexampointprint'}) eq 'yes') {
1816: $allow_print_points=0;
1817: }
1818: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1819: 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 1820: &clear_required_languages();
1.319 foxr 1821: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1822: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1823:
1824: # Figure out what the due date is and if we need to print
1825: # it in the problem header. We have been logging the
1826: # last due date written to file.
1827:
1828: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1829: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1830: my $duedate_text = &mt('Due date: [_1]'
1831: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1832: my $temp_file;
1833: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1834:
1835: # Figure out what the last printed due date is or set it
1836: # to the epoch if no duedates have been printed.
1837:
1838: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1839: if (-e $filename) {
1840: $temp_file = Apache::File->new($filename);
1841: my @due_file = <$temp_file>;
1842: $due_file_content = $due_file[$#due_file];
1843: chomp $due_file_content;
1844: }
1845:
1846: # We display the due date iff it is not the same as the last
1847: # duedate in problem header ($due_file_content), and
1848: # none of our parts displayed a duedate.
1849: #
1850: my $parts_with_displayduedate;
1851: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1852: $parts_with_displayduedate =
1853: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1854: } else {
1855: $parts_with_displayduedate = 0;
1856: }
1857: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1858: $temp_file = Apache::File->new('>'.$filename);
1859: print $temp_file "$duetime\n";
1860: if (not $env{'request.symb'} =~ m/\.page_/) {
1861: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1862: $frontmatter .= $begin_doc.
1.448 bisitz 1863: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1864: } else {
1865: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1866: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1867: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1868: }
1.319 foxr 1869: }
1870: } else {
1.448 bisitz 1871: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1872: }
1873: } else {
1874: if (not $env{'request.symb'} =~ m/\.page_/) {
1875: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1876: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1877: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1878: }
1.319 foxr 1879: } else {
1.381 albertel 1880: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1881: }
1882: }
1883: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1884: }
1885:
1.159 albertel 1886: my $status=$Apache::inputtags::status['-1'];
1887: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1888: $target eq 'tex') {
1.249 albertel 1889: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1890: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1891: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1892: &Apache::inputtags::grade;
1.324 albertel 1893: } elsif ($status eq 'NEEDS_CHECKIN') {
1894: # no need to grade, and don't want to hide data
1.249 albertel 1895: } else {
1896: # move any submission data to .hidden
1897: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1898: }
1.159 albertel 1899: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1900: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1901: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1902: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1903: # if part is zero, no <part>s existed, so we need show the current
1904: # grading status
1905: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1906: $result.= $gradestatus;
1907: }
1908: if (
1.284 albertel 1909: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1910: ($target eq 'answer') || ($target eq 'tex')
1911: ) {
1.490 raeburn 1912: if (($target ne 'tex') &&
1913: ($env{'form.answer_output_mode'} ne 'tex') &&
1914: (!$env{'form.grade_imsexport'})) {
1.254 www 1915: $result.="</form>";
1.159 albertel 1916: }
1917: if ($target eq 'web') {
1.507 raeburn 1918: #
1919: # Closing </body></html> not added by end_page().
1920: # Added separately at end of this routine, after added
1921: # <script></script> so document will be valid xhtml.
1922: #
1923: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1924: 'notbody' => 1});
1.159 albertel 1925: } elsif ($target eq 'tex') {
1.178 sakharuk 1926: my $endminipage = '';
1.284 albertel 1927: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1928: $endminipage = '\end{minipage}';
1929: }
1.284 albertel 1930: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1931: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1932: } else {
1.262 sakharuk 1933: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1934: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1935: $result .= $endminipage.'\end{document} ';
1936: } else {
1.382 albertel 1937: $result .= $endminipage;
1.262 sakharuk 1938: }
1.159 albertel 1939: }
1940: }
1941: }
1.476 www 1942: if ($target eq 'web') {
1943: $result.=&Apache::functionplotresponse::init_script();
1944: }
1.159 albertel 1945: if ($target eq 'grade') {
1946: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1947: &finalize_storage();
1948: }
1.284 albertel 1949: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1950: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1951: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1952: # normally we get it from above, but in CSTR
1.172 albertel 1953: # we always show answer mode too.
1.159 albertel 1954: }
1955: } elsif ($target eq 'meta') {
1956: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1957: @Apache::inputtags::response=();
1.159 albertel 1958: $result=&Apache::response::mandatory_part_meta;
1959: }
1.215 albertel 1960: $result.=&Apache::response::meta_part_order();
1.258 albertel 1961: $result.=&Apache::response::meta_response_order();
1.159 albertel 1962: } elsif ($target eq 'edit') {
1963: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1964: $result .= &problem_edit_footer();
1.320 albertel 1965: } elsif ($target eq 'modified') {
1966: $result .= $token->[2];
1.159 albertel 1967: }
1.155 albertel 1968:
1.284 albertel 1969: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1970: &Apache::inputtags::check_for_duplicate_ids();
1971: }
1.204 albertel 1972:
1973: &reset_problem_globals('problem');
1.159 albertel 1974:
1.502 foxr 1975: #
1976: # This shouild be just above the return so that the
1977: # time put in the javascript is as late as possible in the
1978: # computation:
1979: #
1980: if ($target eq 'web') {
1981: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1982: #
1983: # Closing tags delayed so any <script></script> tags
1984: # not in head can appear inside body, for valid xhtml.
1985: #
1986: $result .= "</body>\n</html>";
1.502 foxr 1987: }
1.159 albertel 1988: return $result;
1.48 albertel 1989: }
1990:
1.108 albertel 1991:
1.48 albertel 1992: sub start_library {
1.159 albertel 1993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1994: my ($result,$form_tag_start);
1.371 albertel 1995: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1996: &init_problem_globals('library');
1997: $Apache::lonhomework::type='problem';
1998: }
1.159 albertel 1999: if ($target eq 'edit') {
1.343 albertel 2000: ($result,$form_tag_start)=
2001: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2002: 'Edit');
2003: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2004: my $temp=&Apache::edit::insertlist($target,$token);
2005: $result.=$temp;
2006: } elsif ($target eq 'modified') {
2007: $result=$token->[4];
1.340 albertel 2008: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2009: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2010: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2011: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2012: ($result,$form_tag_start)=
2013: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2014: $name);
1.479 raeburn 2015: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2016: $result.=" \n $form_tag_start".
1.159 albertel 2017: '<input type="hidden" name="submitted" value="yes" />';
2018: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2019: if ($Apache::lonhomework::type eq 'practice') {
2020: $result.= '<input type="submit" name="resetdata" '.
2021: 'value="'.&mt('New Problem Variation').'" />'.
2022: &practice_problem_header().'<hr />';
2023: }
1.159 albertel 2024: }
2025: return $result;
1.48 albertel 2026: }
2027:
2028: sub end_library {
1.159 albertel 2029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2030: my $result='';
2031: if ($target eq 'edit') {
2032: $result=&problem_edit_footer();
1.371 albertel 2033: } elsif ($target eq 'web'
2034: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2035: && $env{'request.state'} eq "construct") {
1.349 albertel 2036: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2037: }
1.371 albertel 2038: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2039: &reset_problem_globals('library');
2040: }
1.159 albertel 2041: return $result;
1.197 www 2042: }
2043:
2044: sub start_definetag {
1.326 albertel 2045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2046:
2047: my $result;
2048:
2049: my $name = $token->[2]->{'name'};
1.326 albertel 2050: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2051: if ($target eq 'web') {
2052: if ($name=~/^\//) {
2053: $result=
2054: '<br /><table class="LC_sty_end"><tr><th>'.
2055: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2056: } else {
2057: $result=
2058: '<br /><table class="LC_sty_begin"><tr><th>'.
2059: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2060: }
2061: $skip = &HTML::Entities::encode($skip, '<>&"');
2062: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2063: }
2064: return $result;
2065: }
2066:
2067: sub end_definetag {
2068: return '';
1.1 albertel 2069: }
2070:
2071: sub start_block {
1.201 albertel 2072: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2073:
2074: my $result;
1.1 albertel 2075:
1.339 albertel 2076: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2077: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2078: my $code = $token->[2]->{'condition'};
1.385 albertel 2079: if (defined($code) && $code ne '') {
1.137 albertel 2080: if (!$Apache::lonxml::default_homework_loaded) {
2081: &Apache::lonxml::default_homework_load($safeeval);
2082: }
1.131 albertel 2083: $result = &Apache::run::run($code,$safeeval);
2084: &Apache::lonxml::debug("block :$code: returned :$result:");
2085: } else {
2086: $result='1';
2087: }
2088: if ( ! $result ) {
1.201 albertel 2089: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2090: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2091: }
2092: $result='';
2093: } elsif ($target eq 'edit') {
2094: $result .=&Apache::edit::tag_start($target,$token);
2095: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2096: $token,40);
2097: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2098: } elsif ($target eq 'modified') {
2099: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2100: $safeeval,'condition');
2101: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2102: }
1.131 albertel 2103: return $result;
1.1 albertel 2104: }
2105:
2106: sub end_block {
1.167 www 2107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2108: my $result;
2109: if ($target eq "edit") {
2110: $result.= &Apache::edit::tag_end($target,$token,'');
2111: }
2112: return $result;
2113: }
1.500 foxr 2114: #
2115: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2116: # ...
2117: # </languageblock>
2118: #
2119: # This declares the intent to provide content that can be rendered in the
2120: # set of languages in the include specificatino but not in the exclude
2121: # specification. If a currently preferred language is in the include list
2122: # the content in the <languageblock>...</languageblock> is rendered
2123: # If the currently preferred language is in the exclude list,
2124: # the content in the <languageblock>..></languageblock is not rendered.
2125: #
2126: # Pathalogical case handling:
2127: # - Include specified, without the preferred language but exclude specified
2128: # also without the preferred langauge results in rendering the block.
2129: # - Exclude specified without include and excluden not containing a
2130: # preferred language renders the block.
2131: # - Include and exclude both specifying the preferred language does not
2132: # render the block.
2133: # - If neither include/exclude is specified, the block gets rendered.
2134: #
2135: # This tag has no effect when target is in {edit, modified}
2136: #
1.167 www 2137: sub start_languageblock {
1.201 albertel 2138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2139:
1.500 foxr 2140: my $result = '';
1.167 www 2141:
1.339 albertel 2142: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2143: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2144: my $include = $token->[2]->{'include'};
2145: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2146: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2147:
2148: # This should not even happen, since we should at least have the server language
2149:
2150: if (!$preferred_languages[0]) {
2151: $preferred_languages[0]='en';
2152: }
2153:
2154: # Now loop over all languages in order of preference
2155:
2156: my $render;
1.398 www 2157: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2158:
2159: # If neither include/nor exlude is present the block is going
2160: # to get rendered.
2161:
1.399 www 2162: my $found=0;
1.500 foxr 2163: $render=1;
2164:
2165: # If include is specified, don't render the block
2166: # unless the preferred language is included in the set.
2167:
1.398 www 2168: if ($include) {
1.500 foxr 2169: $render=0;
1.398 www 2170: foreach my $included_language (split(/\,/,$include)) {
2171: if ($included_language eq $preferred_language) {
1.500 foxr 2172: $render=1;
1.399 www 2173: $found=1;
1.500 foxr 2174: last; # Only need to find the first.
1.398 www 2175: }
2176: }
2177: }
1.500 foxr 2178: # Do we have an exclude argument?
2179: # If so, and one of the languages matches a preferred language
2180: # inhibit rendering the block. Note that in the pathalogical case the
2181: # author has specified a preferred language in both the include and exclude
2182: # attribte exclude is preferred.
2183:
1.398 www 2184: if ($exclude) {
1.500 foxr 2185: $render=1;
1.398 www 2186: foreach my $excluded_language (split(/\,/,$exclude)) {
2187: if ($excluded_language eq $preferred_language) {
1.500 foxr 2188: $render=0;
1.399 www 2189: $found=1;
1.500 foxr 2190: last; # Only need to find the first.
1.398 www 2191: }
2192: }
2193: }
1.500 foxr 2194: if ($found) {
2195: last; # Done on any match of include or exclude.
2196: }
1.398 www 2197: }
1.500 foxr 2198: # If $render not true skip the entire block until </languageblock>
2199: #
2200:
2201: if ( ! $render ) {
1.201 albertel 2202: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2203: $style);
2204: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2205: }
1.500 foxr 2206: # If $render is true, we've not skipped the contents of the <languageglock>
2207: # and the normal loncapa processing flow will render it as a matter of course.
2208:
1.167 www 2209: } elsif ($target eq 'edit') {
2210: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2211: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2212: $token,40);
1.211 albertel 2213: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2214: $token,40);
2215: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2216: } elsif ($target eq 'modified') {
2217: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2218: $safeeval,'include',
2219: 'exclude');
1.167 www 2220: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2221: }
2222: return $result;
2223: }
2224:
2225: sub end_languageblock {
1.170 www 2226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2227: my $result;
1.201 albertel 2228: if ($target eq "edit") {
1.170 www 2229: $result.= &Apache::edit::tag_end($target,$token,'');
2230: }
2231: return $result;
2232: }
1.500 foxr 2233: # languagblock specific tags:
2234: {
2235: # For chunks of a resource that has translations, this hash contains
2236: # the translations available indexed by language name.
2237: #
2238:
2239: my %available_texts;
1.170 www 2240:
1.500 foxr 2241: # <translated> starts a block of a resource that has multiple translations.
2242: # See the <lang> tag as well.
2243: # When </translated> is encountered if there is a translation for the
2244: # currently preferred language, that is rendered inthe web/tex/webgrade
2245: # targets. Otherwise, the default text is rendered.
2246: #
2247: # Note that <lang> is only registered for the duration of the
2248: # <translated>...</translated> block
2249: #
2250: # Pathalogical case handling:
2251: # - If there is no <lang> that specifies a 'default' and there is no
2252: # translation that matches a preferred language, nothing is rendered.
2253: # - Nested <translated>...</translated> might be linguistically supported by
2254: # XML due to the stack nature of tag registration(?) however the rendered
2255: # output will be incorrect because there is only one %available_texts
2256: # has and end_translated clears it.
2257: # - Material outside of a <lang>...</lang> block within the
2258: # <translated>...<translated> block won't render either e.g.:
2259: # <translated>
2260: # The following will be in your preferred langauge:
2261: # <lang which='en'>
2262: # This section in english
2263: # </lang>
2264: # <lang which='sgeiso'>
2265: # Hier es ist auf Deutsch.
2266: # </lang>
2267: # <lang which='sfriso'>
2268: # En Francais
2269: # </lang>
2270: # </translated>
2271: #
2272: # The introductory text prior to the first <lang> tag is not rendered.
2273: #
1.397 albertel 2274: sub start_translated {
2275: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2276: &Apache::lonxml::register('Apache::structuretags',('lang'));
2277: undef(%available_texts);
2278: }
2279:
2280: sub end_translated {
2281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2282: my $result;
2283: #show the translation on viewable targets
2284: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2285: # or non-viewable targets, if it's embedded in something that
2286: # wants the output
2287: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2288: && &Apache::lonxml::in_redirection() ) ) {
2289: my @possibilities = keys(%available_texts);
2290: my $which =
2291: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2292: if ($target eq 'tex') {
2293: $result = &select_hyphenation($which);
2294: }
2295: $result .= $available_texts{$which};
2296: if ($target eq 'tex') {
2297: $result .= &select_metadata_hyphenation(); # Restore original language.
2298: }
1.397 albertel 2299: }
2300: undef(%available_texts);
2301: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2302: return $result;
2303: }
2304:
1.500 foxr 2305: # <lang [which='language-name'] [other='lang1,lang2...']>
2306: # Specifies that the block contained within it is a translation
2307: # for a specific language specified by the 'which' attribute. The
2308: # 'other' attribute can be used by itself or in conjunction with
2309: # which to specify this tag _may_ be used as a translation for some
2310: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2311: # specifying that the block provides a translation for US (primary)
2312: # Canadian, Australian and UK Englush.
2313: #
2314: # Comment: this seems a bit silly why not just support a list of languages
2315: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2316: #
2317: # Effect:
2318: # The material within the <lang>..</lang> block is stored in the
2319: # specified set of $available_texts hash entries, the appropriate one
2320: # is selected at </translated> time.
2321: #
2322: # Pathalogical case handling:
2323: # If a language occurs multiple times within a <translated> block,
2324: # only the last one is rendered e.g.:
2325: #
2326: # <translated>
2327: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2328: # Red green color blindness is quite common affecting about 7.8% of
2329: # the male population, but onloy about .65% of the female population.
2330: # </lang>
2331: # Red green colour blindness is quite common affecting about 7.8% of
2332: # the male population, but onloy about .65% of the female population.
2333: # <lang which='seniso', other='senisoCA,senisoAU'>
2334: # </translated>
2335: #
2336: # renders the correct spelling of color (colour) for people who have specified
2337: # a preferred language that is one of the British Commonwealth languages
2338: # even though those are also listed as valid selections for the US english
2339: # <lang> block.
2340: #
1.397 albertel 2341: sub start_lang {
2342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2343: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2344: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2345: &Apache::lonxml::startredirection();
2346: }
2347: return '';
2348: }
2349:
2350: sub end_lang {
2351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2352: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2353: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2354: my $result = &Apache::lonxml::endredirection();
2355: my $which = &Apache::lonxml::get_param('which',$parstack,
2356: $safeeval);
1.431 raeburn 2357: if ($which=~/\w/) {
2358: $available_texts{$which} = $result;
2359: }
2360: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2361: $safeeval);
2362: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2363: if ($language=~/\w/) {
2364: $available_texts{$language} = $result;
2365: }
1.427 bisitz 2366: }
2367:
1.397 albertel 2368: }
2369: return '';
2370: }
1.500 foxr 2371: } # end langauge block specific tags.
2372:
1.397 albertel 2373:
1.170 www 2374: sub start_instructorcomment {
1.201 albertel 2375: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2376:
2377: my $result;
2378:
1.339 albertel 2379: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2380: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2381: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2382: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2383: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2384: $parser,$style);
1.170 www 2385: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2386: }
2387: $result='';
2388: } elsif ($target eq 'edit') {
2389: $result .=&Apache::edit::tag_start($target,$token);
2390: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2391: }
2392: return $result;
2393: }
2394:
2395: sub end_instructorcomment {
1.159 albertel 2396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2397: my $result;
2398: if ($target eq "edit") {
2399: $result.= &Apache::edit::tag_end($target,$token,'');
2400: }
2401: return $result;
1.4 tsai 2402: }
2403:
2404: sub start_while {
1.326 albertel 2405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2406:
1.160 albertel 2407: my $result;
1.339 albertel 2408: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2409: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2410: my $code = $token->[2]->{'condition'};
1.4 tsai 2411:
1.160 albertel 2412: push( @Apache::structuretags::whileconds, $code);
2413: if (!$Apache::lonxml::default_homework_loaded) {
2414: &Apache::lonxml::default_homework_load($safeeval);
2415: }
2416: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2417: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2418: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2419: push( @Apache::structuretags::whileline, $token->[5]);
2420: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2421: if ( $result ) {
2422: &Apache::lonxml::newparser($parser,\$bodytext);
2423: }
2424: } elsif ($target eq 'edit') {
2425: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2426: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2427: $token,40);
2428: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2429: } elsif ($target eq 'modified') {
2430: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2431: $safeeval,'condition');
2432: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2433: }
1.160 albertel 2434: return $result;
1.4 tsai 2435: }
2436:
2437: sub end_while {
1.159 albertel 2438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2439: my $result;
2440:
1.339 albertel 2441: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2442: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2443: my $code = pop(@Apache::structuretags::whileconds);
2444: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2445: my $line = pop(@Apache::structuretags::whileline);
2446: my $return = &Apache::run::run($code,$safeeval);
2447: my $starttime=time;
2448: my $error=0;
2449: while ($return) {
2450: if (time-$starttime >
2451: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2452: $return = 0; $error=1; next;
1.161 albertel 2453: }
2454: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2455: if ($target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'analyze') {
2457: # grade/answer/analyze should produce no output but if we
2458: # are redirecting, the redirecter should know what to do
2459: # with the output
2460: if (!$Apache::lonxml::redirection) { undef($result); }
2461: }
1.161 albertel 2462: $return = &Apache::run::run($code,$safeeval);
2463: }
1.516 bisitz 2464: if ($error) {
2465: &Apache::lonxml::error(
2466: '<pre>'
2467: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2468: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2469: .&mt('This occurred while running <while> on line [_1].',
2470: $line)
2471: .'</pre>');
2472: }
1.160 albertel 2473: } elsif ($target eq "edit") {
2474: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2475: }
1.160 albertel 2476: return $result;
1.1 albertel 2477: }
1.6 tsai 2478:
1.160 albertel 2479: # <randomlist show="1">
1.6 tsai 2480: # <tag1>..</tag1>
2481: # <tag2>..</tag2>
2482: # <tag3>..</tag3>
1.160 albertel 2483: # ...
1.6 tsai 2484: # </randomlist>
2485: sub start_randomlist {
1.326 albertel 2486: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2487: my $result;
1.339 albertel 2488: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2489: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2490: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2491: my $b_parser= HTML::LCParser->new(\$body);
2492: $b_parser->xml_mode(1);
2493: $b_parser->marked_sections(1);
1.159 albertel 2494: my $b_tok;
2495: my @randomlist;
2496: my $list_item;
2497: while($b_tok = $b_parser->get_token() ) {
2498: if($b_tok->[0] eq 'S') { # start tag
2499: # get content of the tag until matching end tag
2500: # get all text upto the matching tag
2501: # and push the content into @randomlist
2502: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2503: $b_parser);
2504: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2505: push(@randomlist,$list_item);
2506: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2507: # $list_item</b>";
2508: }
2509: if($b_tok->[0] eq 'T') { # text
2510: # what to do with text in between tags?
2511: # print "<b>TEXT $b_tok->[1]</b><br />";
2512: }
2513: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2514: # print "<b>END-TAG $b_tok->[1]</b><br />";
2515: # }
2516: }
1.303 albertel 2517: if (@randomlist) {
2518: my @idx_arr = (0 .. $#randomlist);
2519: &Apache::structuretags::shuffle(\@idx_arr);
2520: my $bodytext = '';
2521: my $show=$#randomlist;
2522: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2523: $showarg--;
2524: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2525: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2526: my @currlist;
2527: my $part = $Apache::inputtags::part;
2528: if ($part ne '') {
2529: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2530: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2531: if (!(grep(/^\Q$part\E$/,@currlist))) {
2532: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2533: }
2534: } else {
2535: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2536: }
2537: }
2538: }
1.526 raeburn 2539: for my $i (0 .. $show) {
2540: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2541: }
2542: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2543: }
2544: } elsif ($target eq 'edit' ) {
2545: $result .=&Apache::edit::tag_start($target,$token);
2546: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2547: $token,5);
2548: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2549: } elsif ($target eq 'modified' ) {
2550: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2551: $safeeval,'show');
2552: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2553: }
2554: return $result;
1.7 tsai 2555: }
2556:
2557: sub shuffle {
2558: my $a=shift;
2559: my $i;
1.303 albertel 2560: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2561: &Apache::response::pushrandomnumber();
1.159 albertel 2562: for($i=@$a;--$i;) {
2563: my $j=int(&Math::Random::random_uniform() * ($i+1));
2564: next if $i == $j;
2565: @$a[$i,$j] = @$a[$j,$i];
2566: }
1.251 albertel 2567: &Apache::response::poprandomnumber();
1.7 tsai 2568: }
1.6 tsai 2569: }
2570:
2571: sub end_randomlist {
1.159 albertel 2572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2573: my $result;
2574: if ($target eq 'edit' ) {
2575: $result=&Apache::edit::tag_end($target,$token,
2576: 'End Randomly Parsed Block');
2577: }
2578: return $result;
1.6 tsai 2579: }
2580:
1.283 albertel 2581: sub ordered_show_check {
2582: my $last_part=$Apache::inputtags::partlist[-2];
2583: my $in_order=
2584: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2585: my $in_order_show=1;
2586: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2587: $in_order_show=&Apache::response::check_status($last_part);
2588: }
2589: return $in_order_show;
2590: }
2591:
1.469 www 2592:
2593: sub start_startpartmarker {
2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2595: my $result='';
2596: if ($target eq 'edit') {
2597: $result=&Apache::edit::tag_start($target,$token);
2598: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2599: $result.=&Apache::edit::end_table();
2600:
2601: }
2602: return $result;
2603: }
2604:
2605: sub end_startpartmarker {
2606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2607: my @result;
2608: if ($target eq 'edit') { $result[1]='no'; }
2609: return @result;
2610: }
2611:
2612: sub start_endpartmarker {
2613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2614: my $result='';
2615: if ($target eq 'edit') {
2616: $result=&Apache::edit::tag_start($target,$token);
2617: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2618: $result.=&Apache::edit::end_table();
2619:
2620: }
2621: return $result;
2622: }
2623:
2624: sub end_endpartmarker {
2625: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2626: my @result;
2627: if ($target eq 'edit') { $result[1]='no'; }
2628: return @result;
2629: }
2630:
2631:
2632:
2633:
2634:
1.11 albertel 2635: sub start_part {
1.326 albertel 2636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2637: if (!$Apache::lonxml::metamode) {
2638: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2639: # duedates.
2640: }
1.159 albertel 2641: my $result='';
1.386 albertel 2642: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2643: $Apache::inputtags::part=$id;
1.177 albertel 2644: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2645: $Apache::inputtags::leniency='';
1.177 albertel 2646: @Apache::inputtags::response=();
1.159 albertel 2647: @Apache::inputtags::previous=();
2648: @Apache::inputtags::previous_version=();
1.405 albertel 2649: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2650: &Apache::response::reset_params();
2651:
1.159 albertel 2652: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2653: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2654: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2655: if ($Apache::lonhomework::type eq 'randomizetry') {
2656: my $rndseed=&setup_rndseed($safeeval,$target);
2657: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2658: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2659: }
2660: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2661: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2662: }
1.283 albertel 2663: my $in_order_show=&ordered_show_check();
1.214 albertel 2664: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2665: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2666: &Apache::run::run($expression,$safeeval);
1.159 albertel 2667:
2668: if ($target eq 'meta') {
1.224 www 2669: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2670: return &Apache::response::mandatory_part_meta.
2671: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2672: } elsif ($target eq 'web' || $target eq 'grade' ||
2673: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2674: if ($hidden || !$in_order_show) {
1.326 albertel 2675: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2676: } else {
2677: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2678: push (@Apache::inputtags::status,$status);
2679: my $expression='$external::datestatus="'.$status.'";';
2680: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2681: &Apache::run::run($expression,$safeeval);
1.284 albertel 2682: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2683: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2684: }
1.216 albertel 2685: if (( $status eq 'CLOSED' ) ||
2686: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2687: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2688: ( $status eq 'BANNED') ||
2689: ( $status eq 'UNAVAILABLE') ||
2690: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2691: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2692: $style);
1.159 albertel 2693: if ( $target eq "web" ) {
1.211 albertel 2694: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2695: } elsif ( $target eq 'tex' ) {
1.284 albertel 2696: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2697: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2698: } else {
1.211 albertel 2699: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2700: }
1.159 albertel 2701: }
2702: } else {
2703: if ($target eq 'tex') {
1.284 albertel 2704: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2705: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2706: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2707: } else {
2708: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2709: }
1.195 sakharuk 2710: }
1.159 albertel 2711: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2712: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2713: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2714: my $allow_print_points = 0;
2715: foreach my $partial_key (@allkeys) {
1.230 albertel 2716: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2717: if ($1 ne '0') {$allow_print_points=1;}
2718: }
2719: }
1.275 albertel 2720: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2721: if (defined($maxtries) && $maxtries < 0) {
2722: $allow_print_points=0;
2723: }
1.302 albertel 2724: if (lc($env{'course.'.$env{'request.course.id'}.
2725: '.disableexampointprint'}) eq 'yes') {
2726: $allow_print_points=0;
2727: }
1.463 foxr 2728: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2729: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2730:
2731: }
1.233 www 2732: } elsif ($target eq 'web') {
1.479 raeburn 2733: if ($status eq 'CAN_ANSWER') {
2734: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2735: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2736: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2737: my $num = scalar(@Apache::inputtags::partlist)-1;
2738: if ($probrandomize eq 'randomizetry') {
2739: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2740: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2741: } else {
2742: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2743: if ($probrandtries ne $reqtries) {
2744: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2745: }
2746: }
2747: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2748: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2749: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2750: }
2751: }
1.475 raeburn 2752: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2753: }
2754: }
2755: }
2756: } elsif ($target eq 'edit') {
2757: $result.=&Apache::edit::tag_start($target,$token);
2758: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2759: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2760: ' '.
2761: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2762: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2763: } elsif ($target eq 'modified') {
2764: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2765: $safeeval,'id','display');
1.159 albertel 2766: if ($constructtag) {
1.225 albertel 2767: #limiting ids to only letters numbers, and space
1.224 www 2768: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2769: $result = &Apache::edit::rebuild_tag($token);
2770: }
2771: }
2772: return $result;
1.11 albertel 2773: }
2774:
2775: sub end_part {
1.159 albertel 2776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2777: &Apache::lonxml::debug("in end_part $target ");
2778: my $status=$Apache::inputtags::status['-1'];
2779: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2780: my $in_order_show=&ordered_show_check();
1.321 albertel 2781: my $result;
2782: if (!$Apache::lonxml::metamode) {
2783: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2784: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2785: }
1.312 albertel 2786: if ($target eq 'grade') {
1.249 albertel 2787: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2788: !$hidden && $in_order_show) {
1.311 foxr 2789: $result.=&Apache::inputtags::grade;
1.249 albertel 2790: } else {
2791: # move any submission data to .hidden
2792: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2793: }
1.283 albertel 2794: } elsif (($target eq 'web' || $target eq 'tex') &&
2795: !$hidden && $in_order_show) {
1.159 albertel 2796: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2797: $target);
1.490 raeburn 2798: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2799: ($env{'form.grade_imsexport'})) {
1.212 albertel 2800: $gradestatus='';
2801: }
1.311 foxr 2802: $result.=$gradestatus;
1.265 sakharuk 2803: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2804: } elsif ($target eq 'edit') {
1.311 foxr 2805: $result.=&Apache::edit::end_table();
1.322 albertel 2806: } elsif ($target eq 'modified') {
2807: $result .= $token->[2];
1.159 albertel 2808: }
2809: pop @Apache::inputtags::status;
2810: $Apache::inputtags::part='';
1.536 raeburn 2811: $Apache::inputtags::leniency='';
1.295 albertel 2812: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2813: return $result;
1.11 albertel 2814: }
1.1 albertel 2815:
1.25 albertel 2816: sub start_preduedate {
1.326 albertel 2817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2818: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2819: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2820: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2821: if (!$Apache::lonhomework::scantronmode &&
2822: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2823: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2824: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2825: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2826: }
1.24 albertel 2827: }
1.159 albertel 2828: return '';
1.24 albertel 2829: }
2830:
1.25 albertel 2831: sub end_preduedate {
1.159 albertel 2832: return '';
1.24 albertel 2833: }
2834:
1.369 foxr 2835: # In all the modes where <postanswerdate> text is
2836: # displayable, all we do is eat up the text between the start/stop
2837: # tags if the conditions are not right to display it.
1.25 albertel 2838: sub start_postanswerdate {
1.326 albertel 2839: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2840: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2841: &Apache::lonnet::allowed('pav',
2842: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2843: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2844: $target eq 'tex' ) {
1.300 albertel 2845: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2846: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2847: (($target eq 'tex') && !$pav)) {
1.326 albertel 2848: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2849: }
2850: }
2851: return '';
1.24 albertel 2852: }
2853:
1.25 albertel 2854: sub end_postanswerdate {
1.159 albertel 2855: return '';
1.24 albertel 2856: }
2857:
1.25 albertel 2858: sub start_notsolved {
1.326 albertel 2859: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2860: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2861: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2862: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2863: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2864: if ($gradestatus =~ /^correct/ &&
2865: &Apache::response::show_answer()) {
1.159 albertel 2866: &Apache::lonxml::debug("skipping");
1.326 albertel 2867: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2868: }
1.24 albertel 2869: }
1.159 albertel 2870: return '';
1.24 albertel 2871: }
2872:
1.25 albertel 2873: sub end_notsolved {
1.159 albertel 2874: return '';
1.24 albertel 2875: }
2876:
2877: sub start_solved {
1.326 albertel 2878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2879: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2880: $target eq 'tex') {
2881: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2882: if ($gradestatus !~ /^correct/ ||
2883: !&Apache::response::show_answer()) {
1.326 albertel 2884: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2885: }
1.24 albertel 2886: }
1.159 albertel 2887: return '';
1.24 albertel 2888: }
2889:
2890: sub end_solved {
1.248 albertel 2891: return '';
2892: }
2893:
2894: sub start_problemtype {
1.326 albertel 2895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2896: my $result;
1.339 albertel 2897: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2898: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2899: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2900: if (!defined($mode)) { $mode='show'; }
2901: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2902: my $found=0;
2903: foreach my $type (split(',',$for)) {
2904: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2905: }
2906: if ($mode eq 'show' && !$found) {
1.326 albertel 2907: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2908: }
2909: if ($mode eq 'hide' && $found) {
1.326 albertel 2910: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2911: }
2912: } elsif ($target eq 'edit') {
2913: $result .=&Apache::edit::tag_start($target,$token);
2914: $result.=&Apache::edit::select_arg('Mode:','mode',
2915: [['show','Show'],
2916: ['hide','Hide']]
2917: ,$token);
2918: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2919: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2920: ['survey','Survey'],
1.465 raeburn 2921: ['surveycred','Survey (with credit)'],
2922: ['anonsurvey','Anonymous Survey'],
2923: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2924: ['problem','Homework Problem'],
1.479 raeburn 2925: ['practice','Practice Problem'],
2926: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2927: ,$token);
2928: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2929: } elsif ($target eq 'modified') {
2930: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2931: $safeeval,'mode','for');
2932: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2933: }
2934: return $result;
2935: }
2936:
2937: sub end_problemtype {
1.159 albertel 2938: return '';
1.24 albertel 2939: }
1.34 albertel 2940:
2941: sub start_startouttext {
1.159 albertel 2942: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2943: my @result=(''.'');
2944: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2945:
2946: my $nesting =
2947: &Apache::lonxml::set_state('outtext',
2948: &Apache::lonxml::get_state('outtext')+1);
2949: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2950: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2951: }
1.159 albertel 2952: return (@result);
1.34 albertel 2953: }
1.159 albertel 2954:
1.34 albertel 2955: sub end_startouttext {
1.326 albertel 2956: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2957: my $result='';
2958: my $text='';
2959: if ($target eq 'edit') {
1.424 foxr 2960: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2961: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 2962: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2963: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2964: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2965: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2966: .'</span></td>'
1.515 golterma 2967: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2968: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2969: .'</span></td>'
1.474 raeburn 2970: .'<td>'
2971: .&Apache::edit::insertlist($target,$token)
2972: .'</td>'
1.515 golterma 2973: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2974: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2975: &Apache::edit::end_row().
1.362 albertel 2976: &Apache::edit::start_spanning_row()."\n".
1.255 www 2977: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2978: }
2979: if ($target eq 'modified') {
1.219 albertel 2980: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2981: }
2982: if ($target eq 'tex') {
2983: $result .= '\noindent ';
2984: }
2985: return $result;
1.34 albertel 2986: }
1.159 albertel 2987:
1.34 albertel 2988: sub start_endouttext {
1.159 albertel 2989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2990: my $result='';
2991: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2992: if ($target eq "modified") {
2993: $result='<endouttext />'.
1.377 albertel 2994: &Apache::edit::handle_insertafter('startouttext');
2995: }
1.404 albertel 2996:
2997: my $nesting =
2998: &Apache::lonxml::set_state('outtext',
2999: &Apache::lonxml::get_state('outtext')-1);
3000: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3001: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3002: &Apache::lonxml::set_state('outtext', 0);
3003: }
1.159 albertel 3004: return $result;
1.34 albertel 3005: }
1.159 albertel 3006:
1.34 albertel 3007: sub end_endouttext {
1.159 albertel 3008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3009: my @result=('','');
3010: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3011: return (@result);
1.34 albertel 3012: }
1.159 albertel 3013:
1.45 albertel 3014: sub delete_startouttext {
1.326 albertel 3015: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3016: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3017: my $text=$$parser['-1']->get_text("/endouttext");
3018: my $ntoken=$$parser['-1']->get_token();
3019: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3020: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3021: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3022: # they did the last time round
3023: &Apache::lonxml::increasedepth($ntoken);
3024: &Apache::lonxml::decreasedepth($ntoken);
3025: return 1;
1.193 www 3026: }
3027:
3028: sub start_simpleeditbutton {
3029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3030: my $result='';
1.284 albertel 3031: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3032: ($target eq 'web') &&
1.330 albertel 3033: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3034: my $url=$env{'request.noversionuri'};
1.193 www 3035: $url=~s/\?.*$//;
1.367 albertel 3036: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3037: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3038: # $result='<p class="LC_warning">'
3039: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3040: # .&Apache::loncommon::help_open_topic('Caching')
3041: # .'</p>';
1.486 www 3042: $result.=&Apache::loncommon::head_subbox(
3043: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3044: .&Apache::lonhtmlcommon::add_item_funclist(
3045: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3046: .&mt('Edit').'</a>')
1.486 www 3047: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3048:
1.193 www 3049: }
3050: return $result;
3051: }
3052:
3053: sub end_simpleeditbutton {
3054: return '';
1.45 albertel 3055: }
1.34 albertel 3056:
1.428 raeburn 3057: sub practice_problem_header {
3058: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3059: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3060: '</span>';
3061: }
3062:
1.479 raeburn 3063: sub randomizetry_problem_header {
3064: my ($problemstatus,$reqtries) = @_;
3065: my ($header,$text);
3066: if ($reqtries > 1) {
3067: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3068: if (($problemstatus eq 'no') ||
3069: ($problemstatus eq 'no_feedback_ever')) {
3070: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3071: } else {
3072: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3073: }
3074: } else {
3075: $header = &mt('New Problem Variation Each Try');
3076: if (($problemstatus eq 'no') ||
3077: ($problemstatus eq 'no_feedback_ever')) {
3078: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3079:
3080: } else {
3081: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3082: }
3083: }
3084: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3085: '<span class="LC_info">'.$text.'</span><hr />';
3086: }
3087:
3088: sub randomizetry_part_header {
3089: my ($problemstatus,$reqtries,$num) = @_;
3090: my ($header,$text);
3091: if ($reqtries eq 'none') {
3092: $header = &mt('No Question Variation');
3093: $text = &mt('For this question there will no new variation after a try.');
3094: } elsif ($reqtries > 1) {
3095: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3096: if (($problemstatus eq 'no') ||
3097: ($problemstatus eq 'no_feedback_ever')) {
3098: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3099: } else {
3100: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3101: }
3102: } else {
3103: $header = &mt('New Question Variation For Each Try');
3104: if (($problemstatus eq 'no') ||
3105: ($problemstatus eq 'no_feedback_ever')) {
3106: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3107: } else {
3108: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3109: }
3110: }
3111: my $output;
3112: if ($num > 1) {
3113: $output .= '<hr />';
3114: }
3115: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3116: '<span class="LC_info">'.$text.'</span><br /><br />';
3117: return $output;
3118: }
3119:
1.1 albertel 3120: 1;
3121: __END__
1.435 jms 3122:
3123: =pod
3124:
3125: =back
3126:
3127: =cut
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