Annotation of loncom/homework/structuretags.pm, revision 1.512.2.28
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.28! raeburn 4: # $Id: structuretags.pm,v 1.512.2.27 2024/07/03 19:28:35 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.512.2.24 raeburn 66: use HTML::Entities();
1.356 www 67: use lib '/home/httpd/lib/perl/';
68: use LONCAPA;
69:
1.78 harris41 70: BEGIN {
1.469 www 71: &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 72: }
73:
1.500 foxr 74:
75: #---------------------------------------------------------------------------------
76: #
77: # This section of code deals with hyphenation management.
78: # We must do three things:
79: # - keep track fo the desired languages to alter the header.
80: # - provide hyphenation selection as needed by each language that appears in the
81: # text.
82: # - Provide the header text needed to make available the desired hyphenations.
83: #
84: #
85:
86: # Hash whose keys are the languages encountered in the document/resource.
87: #
88:
89: my %languages_required;
90: ##
91: # Given a language selection as input returns a chunk of LaTeX that
92: # selects the required hyphenator.
93: #
94: # @param language - the language being selected.
95: # @return string
96: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
97: #
98: sub select_hyphenation {
99: my $language = shift;
100:
101: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
102:
103: # If there is no latex language there's not much we can do:
104:
105: if ($language) {
106: &require_language($language);
107: my $babel_hyphenation = "\\selectlanguage{$language}";
108:
109: return $babel_hyphenation;
110: } else {
111: return '';
112: }
113: }
114: ##
115: # Selects hyphenation based on the current problem metadata.
116: # This requires that
117: # - There is a language metadata item set for the problem.
118: # - The language has a latex/babel hyphenation.
119: #
120: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
121: # this problem.
122: # @return string (possibly empty).
123: # @retval If not empty an appropriate \selectlanguage{} directive.
124: #
125: sub select_metadata_hyphenation {
126: my $uri = $Apache::lonxml::request->uri;
127: my $language = &Apache::lonnet::metadata($uri, 'language');
128: my $latex_language = &Apache::loncommon::latexhyphenation($language);
129: if ($latex_language) {
130: return '\selectlanguage{'.$latex_language."}\n";
131: }
132: return ''; # no latex hyphenation or no lang metadata.
133: }
134:
135:
136: ##
137: # Clears the set of languages required by the document being rendered.
138: #
139: sub clear_required_languages {
140: %languages_required = ();
141: }
142: ##
143: # Allows an external client of this module to register a need for a language:
144: #
145: # @param LaTeX language required:
146: #
147: sub require_language {
148: my $language = shift;
149: $languages_required{$language} = 1;
150: }
151:
152: ##
153: # Provides the header for babel that indicates the languages
154: # the document requires.
155: # @return string
156: # @retval \usepackage[lang1,lang2...]{babel}
157: # @retval '' if there are no languages_required.
158: sub languages_header {
159: my $header ='';
160: my @languages = (keys(%languages_required));
161:
162: # Only generate the header if there are languages:
163:
164: if (scalar @languages) {
165: my $language_list = join(',', (@languages));
166: $header = '\usepackage['.$language_list."]{babel}\n";
167: }
168: return $header;
169: }
170:
171: #----------------------------------------------------------------------------------
172:
1.10 albertel 173: sub start_web {
1.326 albertel 174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 175: if ($target ne 'edit' && $target ne 'modified') {
176: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
177: if ($target eq 'web' || $target eq 'webgrade') {
178: return $bodytext;
179: }
180: } elsif ($target eq "edit" ) {
181: my $bodytext =
182: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
183: my $result = &Apache::edit::tag_start($target,$token);
184: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
185: return $result;
186: } elsif ( $target eq "modified" ) {
187: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 188: }
189: return '';
1.10 albertel 190: }
191:
192: sub end_web {
1.44 ng 193: return '';
1.10 albertel 194: }
195:
196: sub start_tex {
1.326 albertel 197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 198: my $result='';
1.383 albertel 199: if ($target ne 'edit' && $target ne 'modified') {
200: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
201: if ($target eq 'tex') {
1.434 foxr 202:
203: # If inside a table, occurrences of \\ must be removed;
204: # else the table blows up.
205:
206: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
207: $bodytext =~ s/\\\\//g;
208: }
1.432 foxr 209: return $bodytext.'{}';
1.383 albertel 210: }
211: } elsif ($target eq "edit" ) {
212: my $bodytext =
213: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
214: my $result = &Apache::edit::tag_start($target,$token);
215: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
216: return $result;
217: } elsif ( $target eq "modified" ) {
218: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 219: }
1.198 sakharuk 220: return $result;;
1.10 albertel 221: }
222:
223: sub end_tex {
1.44 ng 224: return '';
1.9 albertel 225: }
226:
1.400 albertel 227: sub homework_js {
1.512.2.9 raeburn 228: my ($postsubmit,$timeout);
229: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
230: my $crstype;
231: if (&Apache::loncommon::course_type() eq 'Community') {
232: $crstype = 'community';
233: } else {
234: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
235: $crstype = 'official';
236: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
237: $crstype = 'textbook';
238: } else {
239: $crstype = 'unofficial';
240: }
241: }
242: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
243: if ($postsubmit eq '') {
244: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
245: $postsubmit = $domdefs{'postsubmit'};
246: unless ($postsubmit eq 'off') {
247: $timeout = $domdefs{$crstype.'postsubtimeout'};
248: }
249: } elsif ($postsubmit eq '0') {
250: $postsubmit = 'off';
251: } elsif ($postsubmit eq '1') {
252: $postsubmit = 'on';
253: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
254: if ($timeout eq '') {
255: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
256: $timeout = $domdefs{$crstype.'postsubtimeout'};
257: }
258: }
259: if ($timeout eq '') {
260: $timeout = 60;
261: }
262: } else {
263: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
264: $postsubmit = $domdefs{'postsubmit'};
265: unless ($postsubmit eq 'off') {
266: $timeout = 60;
267: }
268: }
269: my $jstimeout = 0;
270: if ($timeout) {
271: $jstimeout = 1000 * $timeout;
272: }
1.400 albertel 273: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 274: &Apache::loncommon::colorfuleditor_js().
1.512.2.28! raeburn 275: &Apache::lonxml::setmode_javascript().
1.512.2.9 raeburn 276: <<"JS";
1.400 albertel 277: <script type="text/javascript">
1.483 raeburn 278: // <![CDATA[
1.494 raeburn 279: function setSubmittedPart (part,prefix) {
280: if (typeof(prefix) == 'undefined') {
281: this.document.lonhomework.submitted.value="part_"+part;
282: } else {
283: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
284: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
285: this.document.lonhomework.elements[i].value="part_"+part;
286: }
287: }
288: }
1.400 albertel 289: }
290:
1.512.2.9 raeburn 291: function disableAutoComplete (id) {
292: var field = document.getElementById(id);
293: if (field != null && field != undefined){
294: if ('autocomplete' in field) {
295: field.autocomplete = "off";
296: } else {
297: field.setAttribute("autocomplete", "off");
298: }
299: }
300: }
301:
1.400 albertel 302: function image_response_click (which, e) {
303: init_geometry();
304: if (!e) { e = window.event; } //IE
305: var input_element = document.lonhomework.elements[which];
1.401 albertel 306: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 307: var token = token_element.value;
1.401 albertel 308: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 309: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
310: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
311: var click = x+':'+y;
312: input_element.value = click;
1.485 raeburn 313: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 314: }
1.512.2.9 raeburn 315:
316: var submithandled = 0;
317: var keypresshandled = 0;
318: var postsubmit = '$postsubmit';
319:
320: \$(document).ready(function(){
321: if (postsubmit != 'off') {
322: \$(document).keypress(function(event){
323: var keycode = (event.keyCode ? event.keyCode : event.which);
324: if ((keycode == '13') && (keypresshandled == 0)) {
325: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
326: keypresshandled = 1;
327: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
328: if (idsArray.length) {
329: event.preventDefault();
330: var itemsArray = idsArray[1].split(/_/);
331: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
332: \$("#"+buttonId).trigger("click");
333: }
334: }
335: }
336: });
337:
338: \$(document).delegate('form :submit', 'click', function( event ) {
339: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
340: var buttonId = this.id;
341: var timeout = $jstimeout;
342: if (submithandled == 0) {
343: submithandled = 1;
344: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
345: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 346: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 347: if (buttonId != "all_submit") {
348: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 349: }
350: if (( "#"+buttonId+"_pressed" ).length) {
351: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 352: }
353: } else {
354: \$( ".LC_status_"+buttonId ).hide();
355: }
356: \$(this.form).submit();
357: \$( ".LC_hwk_submit" ).prop( "disabled", true);
358: \$( ".LC_textline" ).prop( "readonly", "readonly");
359: event.preventDefault();
360:
361: if (timeout > 0) {
362: setTimeout(function(){
363: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 364: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 367: }
368: }
369: \$( ".LC_hwk_submit" ).prop( "disabled", false);
370: \$( ".LC_textline" ).prop( "readonly", false);
371: submithandled = 0;
372: keypresshandled = 0;
373: }, timeout);
374: }
375: return true;
376: }
377: }
378: });
379: }
380: });
381:
1.483 raeburn 382: // ]]>
1.400 albertel 383: </script>
384: JS
385: }
386:
1.48 albertel 387: sub page_start {
1.345 albertel 388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
389: $extra_head)=@_;
1.159 albertel 390: my %found;
1.207 albertel 391: foreach my $taginside (@$tagstack) {
1.159 albertel 392: foreach my $taglookedfor ('html','body','form') {
393: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
394: }
395: }
396:
1.343 albertel 397: if ($target eq 'tex') {
398: return
399: &Apache::londefdef::start_html($target,$token,$tagstack,
400: $parstack,$parser,$safeeval);
401: }
402:
1.474 raeburn 403: $extra_head .= &homework_js().
404: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
405: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 406: my %textarea_args;
407: if (($env{'request.state'} ne 'construct') ||
408: ($env{'environment.nocodemirror'})) {
409: %textarea_args = (
1.474 raeburn 410: dragmath => 'math',
411: );
1.512.2.12 raeburn 412: }
1.474 raeburn 413: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 414: }
1.478 raeburn 415: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 416: my ($needs_upload,$partlist);
1.495 raeburn 417: my ($symb)= &Apache::lonnet::whichuser();
418: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 419: if ($is_task) {
1.495 raeburn 420: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 421: } else {
422: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 423: unless ($env{'request.state'} eq 'construct') {
424: my $navmap = Apache::lonnavmaps::navmap->new();
425: if (ref($navmap)) {
426: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 427: my $is_page;
428: if (ref($mapres)) {
429: $is_page = $mapres->is_page();
430: }
431: unless ($is_page) {
1.495 raeburn 432: $needs_upload = 1;
433: }
1.512.2.9 raeburn 434: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
435: my $res = $navmap->getBySymb($symb);
436: if (ref($res)) {
437: $partlist = $res->parts();
438: }
439: }
1.495 raeburn 440: }
441: }
1.493 raeburn 442: } else {
443: unless ($env{'request.state'} eq 'construct') {
444: my $navmap = Apache::lonnavmaps::navmap->new();
445: if (ref($navmap)) {
1.495 raeburn 446: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 447: my $is_page;
448: if (ref($mapres)) {
449: $is_page = $mapres->is_page();
450: }
1.512.2.9 raeburn 451: if ($is_page) {
452: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
453: my $res = $navmap->getBySymb($symb);
454: if (ref($res)) {
455: $partlist = $res->parts();
456: }
457: }
458: } else {
1.495 raeburn 459: my $res = $navmap->getBySymb($symb);
460: if (ref($res)) {
1.512.2.9 raeburn 461: $partlist = $res->parts();
1.495 raeburn 462: if (ref($partlist) eq 'ARRAY') {
463: foreach my $part (@{$partlist}) {
464: my @types = $res->responseType($part);
465: my @ids = $res->responseIds($part);
466: for (my $i=0; $i < scalar(@ids); $i++) {
467: if ($types[$i] eq 'essay') {
468: my $partid = $part.'_'.$ids[$i];
469: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
470: $needs_upload = 1;
471: last;
472: }
1.493 raeburn 473: }
474: }
475: }
1.495 raeburn 476: }
477: }
1.493 raeburn 478: }
479: }
480: }
481: }
1.495 raeburn 482: if ($needs_upload) {
1.512.2.17 raeburn 483: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
484: '<script type="text/javascript" '.
485: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 486: }
1.478 raeburn 487: }
1.425 raeburn 488:
1.344 albertel 489: my %body_args;
490: if (defined($found{'html'})) {
491: $body_args{'skip_phases'}{'head'}=1;
492: } else {
1.343 albertel 493:
1.345 albertel 494: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 495:
1.379 albertel 496: $extra_head .= &Apache::londefdef::generate_css_links();
497:
1.384 albertel 498: if ($env{'request.state'} eq 'construct') {
1.343 albertel 499: $extra_head.=&Apache::edit::js_change_detection().
500: "<script type=\"text/javascript\">\n".
501: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
502: &Apache::loncommon::browser_and_searcher_javascript().
503: "\n</script>\n";
1.512.2.9 raeburn 504: if ($target eq 'edit') {
505: $extra_head .= &Apache::edit::js_update_linknum();
506: }
1.343 albertel 507: }
1.159 albertel 508: }
1.343 albertel 509:
1.446 bisitz 510: my $pageheader = '';
1.344 albertel 511: if (defined($found{'body'})) {
512: $body_args{'skip_phases'}{'body'}=1;
513: } elsif (!defined($found{'body'})
514: && $env{'request.state'} eq 'construct') {
1.343 albertel 515: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 516: # Breadcrumbs for Authoring Space
1.450 bisitz 517: &Apache::lonhtmlcommon::clear_breadcrumbs();
518: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 519: 'text' => 'Authoring Space',
1.497 raeburn 520: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 521: });
1.460 droeschl 522: # breadcrumbs (and tools) will be created
523: # in start_page->bodytag->innerregister
524:
1.450 bisitz 525: # FIXME Where are we?
526: # &Apache::lonhtmlcommon::add_breadcrumb({
527: # 'text' => 'Problem Editing', # 'Problem Testing'
528: # 'href' => '',
529: # });
1.460 droeschl 530: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 531: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 532: }
1.272 albertel 533: } elsif (!defined($found{'body'})) {
1.343 albertel 534: my %add_entries;
1.159 albertel 535: my $background=&Apache::lonxml::get_param('background',$parstack,
536: $safeeval);
1.343 albertel 537: if ($background ne '' ) {
538: $add_entries{'background'} = $background;
539: }
1.344 albertel 540:
1.290 albertel 541: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
542: $safeeval);
1.446 bisitz 543: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 544:
1.446 bisitz 545: $body_args{'bgcolor'} = $bgcolor;
546: # $body_args{'no_title'} = 1;
547: $body_args{'force_register'} = 1;
548: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 549: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 550: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 551: } elsif ($target eq 'web') {
552: $body_args{'print_suppress'} = 1;
1.446 bisitz 553: }
1.344 albertel 554: }
1.365 albertel 555: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 556: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
557: \%body_args);
1.446 bisitz 558: $page_start .= $pageheader;
1.462 raeburn 559: if (!defined($found{'body'})
560: && $env{'request.state'} ne 'construct'
561: && ($target eq 'web' || $target eq 'webgrade')) {
562:
563: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
564: if ($symb eq '' && !$publicuser) {
565: $page_start .= '<p class="LC_info">'
566: .&mt('Browsing resource, all submissions are temporary.')
567: .'</p>';
1.457 bisitz 568: }
1.344 albertel 569: }
570:
1.409 albertel 571: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 572: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 573: }
574: my $form_tag_start;
575: if (!defined($found{'form'})) {
1.337 albertel 576: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 577: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 578: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 579: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 580: $form_tag_start.=$uri.'" ';
581: if ($target eq 'edit') {
582: $form_tag_start.=&Apache::edit::form_change_detection();
583: }
1.493 raeburn 584: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
585: my ($path,$multiresp) =
586: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 587: if (($is_task) || ($needs_upload)) {
588: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 589: }
1.368 albertel 590: $form_tag_start.='>'."\n";
1.355 albertel 591:
592: if ($symb =~ /\S/) {
593: $symb=
594: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
595: $form_tag_start.=
1.368 albertel 596: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 597: }
1.159 albertel 598: }
1.512.2.9 raeburn 599: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 600: }
601:
1.141 matthew 602: #use Time::HiRes();
1.105 albertel 603: sub get_resource_name {
1.159 albertel 604: my ($parstack,$safeeval)=@_;
1.388 foxr 605: my $name;
1.204 albertel 606: if (defined($Apache::lonhomework::name)) {
1.388 foxr 607: $name = $Apache::lonhomework::name;
608: } else {
609: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 610: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 611: if ($name eq '') {
612: $name=&Apache::lonnet::EXT('resource.title');
613: if ($name eq 'con_lost') { $name = ''; }
614: }
615: if ($name!~/\S+/) {
616: $name=$env{'request.uri'};
617: $name=~s-.*/([^/]+)$-$1-;
618: }
619: # The name has had html tags escaped:
620:
621: $name=~s/</</gs;
622: $name=~s/>/>/gs;
623:
624: $Apache::lonhomework::name=$name;
1.204 albertel 625: }
1.159 albertel 626: return $name;
1.105 albertel 627: }
628:
629: sub setup_rndseed {
1.512.2.9 raeburn 630: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 631: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 632: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 633: if ($target eq 'analyze') {
634: $questiontype = $env{'form.grade_questiontype'};
635: }
636: unless (defined($questiontype)) {
637: $questiontype = $Apache::lonhomework::type;
638: }
1.512.2.19 raeburn 639: if ($Apache::lonhomework::type eq 'randomizetry') {
640: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 641: #
642: # Where question type is "randomizetry" for a problem containing
643: # a single part (and unless type is explicitly set to not be
644: # "randomizetry" for that part), the number of tries used to
645: # determine randomization will be for that part, and randomization
646: # from calls to &random() in a perl script block before the part tag,
647: # will change based on the number of tries, and value of the
648: # "randomizeontries" parameter in effect for the single part.
649: #
1.512.2.19 raeburn 650: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 651: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
652: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 653: $partfortries = $probpartlist->[0];
654: } else {
655: $partfortries = '';
656: }
1.512.2.19 raeburn 657: }
658: }
1.512.2.21 raeburn 659: if ($partfortries ne '') {
660: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
661: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
662: }
1.512.2.19 raeburn 663: }
1.512.2.14 raeburn 664: if (($env{'request.state'} eq "construct")
665: || ($symb eq '')
666: || ($Apache::lonhomework::type eq 'practice')
667: || ($Apache::lonhomework::history{'resource.CODE'})
668: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 669: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 670: ['rndseed']);
1.284 albertel 671: $rndseed=$env{'form.rndseed'};
1.159 albertel 672: if (!$rndseed) {
1.162 albertel 673: $rndseed=$Apache::lonhomework::history{'rndseed'};
674: if (!$rndseed) {
675: $rndseed=time;
676: }
1.512.2.14 raeburn 677: unless ($env{'form.code_for_randomlist'}) {
678: $env{'form.rndseed'}=$rndseed;
679: }
1.162 albertel 680: }
1.512.2.20 raeburn 681: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 682: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 683: if ($numtries) {
684: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
685: my $inc = int($numtries/$reqtries);
686: $rndseed += $inc;
687: } else {
688: $rndseed += $numtries;
689: }
1.479 raeburn 690: }
1.480 raeburn 691: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 692: }
1.374 albertel 693: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
694: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 695: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 696: srand(time);
697: $rndseed=int(rand(2100000000));
1.284 albertel 698: $env{'form.rndseed'}=$rndseed;
699: delete($env{'form.resetdata'});
700: delete($env{'form.newrandomization'});
1.159 albertel 701: }
1.488 www 702: $rndseed=~s/\,/\:/g;
703: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 704: if (defined($rndseed)) {
705: my ($c1,$c2)=split(/\:/,$rndseed);
706: unless ($c2) { $c2=0; }
707: unless (($c1==int($c1)) && ($c2==int($c2))) {
708: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
709: }
1.187 albertel 710: }
1.512.2.14 raeburn 711: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
712: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
713: $rndseed=&Apache::lonnet::rndseed();
714: undef($env{'form.CODE'});
715: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 716: $rndseed=&Apache::lonnet::rndseed();
717: }
1.479 raeburn 718: $set_safespace = 1;
719: } elsif ($questiontype eq 'randomizetry') {
720: if ($target eq 'analyze') {
721: if (defined($env{'form.grade_rndseed'})) {
722: $rndseed = $env{'form.grade_rndseed'};
723: }
724: }
725: unless (($target eq 'analyze') && (defined($rndseed))) {
726: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 727: my $curr_try = $numtries;
1.479 raeburn 728: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
729: $curr_try ++;
730: }
731: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
732: $rndseed = $1;
733: }
734: if ($curr_try) {
735: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
736: my $inc = int(($curr_try-1)/$reqtries);
737: $rndseed += $inc;
738: } else {
739: $rndseed += $curr_try;
740: }
741: }
742: }
743: $set_safespace = 1;
1.512.2.9 raeburn 744: if ($target eq 'grade') {
745: $Apache::lonhomework::rawrndseed = $rndseed;
746: }
1.479 raeburn 747: }
748: if ($set_safespace) {
749: if ($safeeval) {
750: &Apache::lonxml::debug("Setting rndseed to $rndseed");
751: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
752: }
753: }
754: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
755: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 756: }
757: return $rndseed;
1.105 albertel 758: }
759:
1.268 albertel 760: sub remember_problem_state {
761: return '
1.284 albertel 762: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
763: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
764: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 765: }
766:
1.487 www 767: sub problem_edit_action_button {
768: my ($name,$action,$accesskey,$text,$flag)=@_;
769: my $actionscript="setmode(this.form,'$action')";
770: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
771: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
772: }
773:
1.423 www 774: sub problem_edit_buttons {
1.487 www 775: my ($mode)=@_;
1.512.2.11 raeburn 776: # Buttons that save
777: my $result = '<div style="float:right">';
778: if ($mode eq 'editxml') {
779: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
780: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
781: } else {
782: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
783: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
784: }
785: $result.="\n</div>\n";
1.487 www 786: # Buttons that do not save
1.512.2.11 raeburn 787: $result .= '<div>'.
1.487 www 788: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
789: if ($mode eq 'editxml') {
790: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
791: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 792: if ($env{'environment.nocodemirror'}) {
793: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
794: }
1.487 www 795: } else {
796: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
797: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
798: }
799: $result.="\n</div>";
800: return $result;
1.423 www 801: }
802:
803: sub problem_edit_header {
1.512.2.11 raeburn 804: my ($mode)=@_;
805: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 806: &remember_problem_state('edit').'
1.512.2.11 raeburn 807: <div class="LC_edit_problem_header">
808: <div class="LC_edit_problem_header_title">
809: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
810: </div><div class="LC_edit_actionbar" id="actionbar">'.
811: '<input type="hidden" name="problemmode" value="saveedit" />'.
812: &problem_edit_buttons();
813:
814: $return .= '</div></div>' . &Apache::lonxml::message_location();
815: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
816: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
817:
818: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
819: <script type="text/javascript">
820: // unless internet explorer
821: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
822: $(document).ready(
823: function() {
824: $(\'.LC_edit_actionbar\').scrollToFixed(
825: {
826: fixed: function(){
827: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
828: $(this).find(\'.LC_edit_actionbar\');
829: }
830: }
831: );
832: }
833: );
834: }
835: </script>
836: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
837: return $return;
1.105 albertel 838: }
839:
1.512.2.11 raeburn 840:
1.105 albertel 841: sub problem_edit_footer {
1.512.2.11 raeburn 842: my $resource = $env{'request.ambiguous'};
1.412 albertel 843: return '</td></tr></table><br />
844: <div class="LC_edit_problem_footer">
1.453 bisitz 845: <hr />'.
1.423 www 846: &problem_edit_buttons().'
1.459 bisitz 847: <hr style="clear:both;" />
1.512.2.11 raeburn 848: <script type="text/javascript">
849: restoreState("'.$resource.'");
850: restoreScrollPosition("'.$resource.'");
851: </script>
1.412 albertel 852: </div>
853: '.
1.342 albertel 854: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 855: }
856:
1.235 albertel 857: sub option {
858: my ($value,$name) = @_;
859: my $result ="<option value='".$value."' ";
1.284 albertel 860: if ($env{'form.'.$name} eq $value) {
1.235 albertel 861: $result.=" selected='on' ";
862: }
863: $result.='>';
864: return $result;
865: }
866:
1.105 albertel 867: sub problem_web_to_edit_header {
1.159 albertel 868: my ($rndseed)=@_;
1.406 albertel 869: my $result .= '<div class="LC_edit_problem_header">';
870:
871: if (!$Apache::lonhomework::parsing_a_task) {
872: $result .=
873: '<div class="LC_edit_problem_header_title">'.
874: &mt('Problem Testing').
875: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
876: '</div>';
877: } else {
878: $result .=
879: '<div class="LC_edit_problem_header_title">'.
880: &mt('Task Testing').
881: '</div>';
882: }
883:
1.315 albertel 884: my $show_all_foils_text =
885: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 886: &mt('Show All Instances')
887: : &mt('Show All Foils');
1.315 albertel 888:
1.452 bisitz 889: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
890: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 891: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 892: $show_all.= ' /> '.$show_all_foils_text
893: .'</label></span>';
1.406 albertel 894:
895:
1.384 albertel 896:
1.406 albertel 897: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 898: if (!$Apache::lonhomework::parsing_a_task) {
899: $result.="
1.406 albertel 900: <div class='LC_edit_problem_header_row1'>
901: <span class=\"LC_nobreak\">
1.405 albertel 902: ".&mt("Problem Status:")."
1.235 albertel 903: <select name='problemstate'>
1.270 albertel 904: <option value=''></option>
1.235 albertel 905: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
906: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
907: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
908: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
909: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
910: </select>
1.406 albertel 911: </span>
912: <span class=\"LC_nobreak\">
1.405 albertel 913: ".&mt("Problem Type:")."
1.235 albertel 914: <select name='problemtype'>
1.270 albertel 915: <option value=''></option>
1.512.2.1 raeburn 916: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 917: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 918: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 919: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
920: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
921: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 922: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 923: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 924: </select>
1.406 albertel 925: </span>
926: $show_all
927: </div>
928: <div class='LC_edit_problem_header_row2'>
929: <span class=\"LC_nobreak\">
1.405 albertel 930: ".&mt("Feedback Mode:")."
1.235 albertel 931: <select name='problemstatus'>
932: <option value=''></option>
1.242 albertel 933: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 934: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 935: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 936: </select>
1.406 albertel 937: </span>
938: ";
939:
1.376 albertel 940: } elsif ($Apache::lonhomework::parsing_a_task) {
941: $result.="
1.406 albertel 942: <div class='LC_edit_problem_header_row1'>
943: <span class=\"LC_nobreak\">
1.405 albertel 944: ".&mt("Problem Status:")."
1.376 albertel 945: <select name='problemstate'>
946: <option value=''></option>
947: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
948: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
949: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
950: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
951: </select>
1.406 albertel 952: </span>
953: $show_all
954: ";
955: }
956: $result.='
957: <span class="LC_nobreak">
958: '.&mt('Apply style file: ').'
959: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
960: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
961: </span>
1.422 www 962: </div>
963: <div class="LC_edit_problem_header_row1">'.
964: &Apache::lonxml::renderingoptions().'
1.406 albertel 965: </div>
966: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
967: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
968: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
969: </div>
1.453 bisitz 970: <hr />
1.406 albertel 971: <div class="LC_edit_problem_header_randomize_row">
972: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
973: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 974: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 975: $rndseed.'"
976: onchange="javascript:document.lonhomework.changerandseed.click()" />';
977:
978: if (!$Apache::lonhomework::parsing_a_task) {
979: my $numtoanalyze=$env{'form.numtoanalyze'};
980: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 981: $result .= '<span class="LC_nobreak">'.
982: &mt('[_1] for [_2] versions.',
1.416 raeburn 983: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 984: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
985: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 986: $numtoanalyze.'" size="5" />').
987: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
988: '</span>';
989:
1.313 albertel 990: }
1.406 albertel 991:
992: $result.='
993: </div>
1.453 bisitz 994: <hr />
1.447 bisitz 995: <div>';
1.416 raeburn 996: $result.='<input type="hidden" name="problemmode" value="view" />';
997: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
998: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
999: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1000: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1001: $result.='
1002: </div>
1.453 bisitz 1003: <hr />
1.409 albertel 1004: '.&Apache::lonxml::message_location().'
1.406 albertel 1005: </div>';
1.159 albertel 1006: return $result;
1.48 albertel 1007: }
1008:
1.65 albertel 1009: sub initialize_storage {
1.357 albertel 1010: my ($given_symb) = @_;
1.353 albertel 1011: undef(%Apache::lonhomework::results);
1012: undef(%Apache::lonhomework::history);
1.357 albertel 1013: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1014: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1015:
1016: # anonymous users (CODEd exams) have no data
1017: if ($name eq 'anonymous'
1018: && !defined($domain)) {
1019: return;
1020: }
1021:
1.333 albertel 1022: if ($env{'request.state'} eq 'construct'
1023: || $symb eq ''
1024: || $Apache::lonhomework::type eq 'practice') {
1025:
1026: my $namespace = $symb || $env{'request.uri'};
1027: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1028: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1029: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1030: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1031: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1032: &Apache::lonxml::debug("Attempt reset");
1033: }
1.159 albertel 1034: %Apache::lonhomework::history=
1.333 albertel 1035: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1036: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1037: &Apache::lonxml::debug("Return message of $temp");
1038: } else {
1039: %Apache::lonhomework::history=
1040: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1041: }
1.353 albertel 1042:
1.159 albertel 1043: #ignore error conditions
1.512.2.9 raeburn 1044: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1045: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1046: }
1047:
1.435 jms 1048: =pod
1049:
1050: =item finalize_storage()
1051:
1.512.2.9 raeburn 1052: Stores away the result hash to a student's environment;
1053: checks form.grade_ for specific values, otherwise stores
1054: to the running user's environment.
1055:
1056: &check_correctness_changes() is called in two circumstances
1057: in which the results hash is to be stored permanently, for
1058: grading triggered by a student's submission, where feedback on
1059: correctness is to be provided to the student.
1060:
1061: 1. Immediately prior to storing the results hash
1062:
1063: To handle the case where a student's submission (and award) were
1064: stored after history was retrieved in &initialize_storage(), e.g.,
1065: if a student submitted answers in quick succession (e.g., from
1066: multiple tabs). &Apache::inputtags::hidealldata() is called for
1067: any parts with out-of-order storage (i.e., correct then incorrect,
1068: where awarded >= 1 when correct).
1069:
1070: 2. Immediately after storing the results hash
1071:
1072: To handle the case where lond on the student's homeserver returns
1073: delay:N -- where N is the number of transactions between the last
1074: retrieved in &initialize_storage() and the last stored immediately
1075: before permanent storage of the current transaction via
1076: lond::store_handler(). &Apache::grades::makehidden() is called
1077: for any parts with out-of-order storage (i.e., correct then incorrect,
1078: where awarded >= 1 when correct).
1079:
1080: Will call &store_aggregates() to increment totals for attempts,
1081: students, and corrects, if running user has student role.
1.435 jms 1082:
1083: =cut
1084:
1085:
1.65 albertel 1086: sub finalize_storage {
1.357 albertel 1087: my ($given_symb) = @_;
1.159 albertel 1088: my $result;
1.289 albertel 1089: if (%Apache::lonhomework::results) {
1.323 albertel 1090: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1091: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1092: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1093: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1094: if ($env{'request.state'} eq 'construct'
1095: || $symb eq ''
1096: || $Apache::lonhomework::type eq 'practice') {
1097: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1098: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1099: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1100: $namespace,'',$domain,$name);
1.159 albertel 1101: &Apache::lonxml::debug('Construct Store return message:'.$result);
1102: } else {
1.512.2.9 raeburn 1103: my ($laststore,$checkedparts,@parts,%postcorrect);
1104: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1105: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1106: (!defined($env{'form.grade_courseid'}))) {
1107: if ($Apache::lonhomework::history{'version'}) {
1108: $laststore = $Apache::lonhomework::history{'version'}.'='.
1109: $Apache::lonhomework::history{'timestamp'};
1110: } else {
1111: $laststore = '0=0';
1112: }
1113: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1114: if ($record{'version'}) {
1115: my ($newversion,$oldversion,$oldtimestamp);
1116: if ($Apache::lonhomework::history{'version'}) {
1117: $oldversion = $Apache::lonhomework::history{'version'};
1118: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1119: } else {
1120: $oldversion = 0;
1121: $oldtimestamp = 0;
1122: }
1123: if ($record{'version'} > $oldversion) {
1124: if ($record{'timestamp'} >= $oldtimestamp) {
1125: $laststore = $record{'version'}.'='.$record{'timestamp'};
1126: $newversion = $record{'version'} + 1;
1127: $checkedparts = 1;
1128: foreach my $key (keys(%Apache::lonhomework::results)) {
1129: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1130: my $part = $1;
1131: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1132: push(@parts,$part);
1133: }
1134: }
1135: }
1136: if (@parts) {
1137: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1138: \%record,\@parts,$newversion,
1139: $oldversion);
1140: if (@parts_to_hide) {
1141: foreach my $part (@parts_to_hide) {
1142: $postcorrect{$part} = 1;
1143: &Apache::inputtags::hidealldata($part);
1144: }
1145: }
1146: }
1147: }
1148: }
1149: }
1150: }
1.159 albertel 1151: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1152: $symb,$courseid,$domain,$name,$laststore);
1153: if ($result =~ /^delay\:(\d+)$/) {
1154: my $numtrans = $1;
1155: my ($oldversion) = split(/=/,$laststore);
1156: if ($numtrans) {
1157: my $newversion = $oldversion + 1 + $numtrans;
1158: my @possparts;
1159: if ($checkedparts) {
1160: foreach my $part (@parts) {
1161: unless ($postcorrect{$part}) {
1162: push(@possparts,$part);
1163: }
1164: }
1165: } else {
1166: foreach my $key (keys(%Apache::lonhomework::results)) {
1167: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1168: my $part = $1;
1169: unless ($postcorrect{$part}) {
1170: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1171: push(@possparts,$part);
1172: }
1173: }
1174: }
1175: }
1176: }
1177: if (@possparts) {
1178: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1179: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1180: \%newrecord,\@possparts,$newversion,
1181: $oldversion);
1182: if (@parts_to_hide) {
1183: my $partslist = join(',',@parts_to_hide);
1184: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1185: }
1186: }
1187: }
1188: }
1.159 albertel 1189: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1190: &store_aggregates($symb,$courseid);
1.159 albertel 1191: }
1.323 albertel 1192: } else {
1193: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1194: }
1.159 albertel 1195: return $result;
1.65 albertel 1196: }
1197:
1.435 jms 1198: =pod
1199:
1.512.2.9 raeburn 1200: =item check_correctness_changes()
1201:
1202: For all parts for which current results contain a solved status
1203: of "incorrect_attempted", check if there was a transaction in which
1204: solved was set to "correct_by_student" in the time since the last
1205: transaction (retrieved when &initialize_storage() was called i.e.,
1206: when &start_problem() was called), unless:
1207: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1208: (b) problemstatus is set to no or no_feedback_ever
1209: If such a transaction exists, and did not occur after "reset status"
1210: by a user with grading privileges, then the current transaction is an
1211: example of an out-of-order transaction (i.e., incorrect occurring after
1212: correct). Accordingly, the current transaction should be hidden.
1213:
1214: =cut
1215:
1216:
1217: sub check_correctness_changes {
1218: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1219: my @parts_to_hide;
1220: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1221: return @parts_to_hide;
1222: }
1223: if (@{$parts}) {
1224: my $usec;
1225: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1226: ($env{'request.course.id'} eq $courseid)) {
1227: $usec = $env{'request.course.sec'};
1228: } else {
1229: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1230: }
1231: foreach my $id (@{$parts}) {
1232: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1233: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1234: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1235: my $reset;
1236: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1237: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1238: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1239: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1240: $reset = 1;
1241: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1242: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1243: unless ($reset) {
1244: push(@parts_to_hide,$id);
1245: last;
1246: }
1247: }
1248: }
1249: }
1250: }
1251: return @parts_to_hide;
1252: }
1253:
1254: =pod
1255:
1.435 jms 1256: item store_aggregates()
1257:
1258: Sends hash of values to be incremented in nohist_resourcetracker.db
1259: for the course. Increments total number of attempts, unique students
1260: and corrects for each part for an instance of a problem, as appropriate.
1261:
1262: =cut
1263:
1.285 raeburn 1264: sub store_aggregates {
1265: my ($symb,$courseid) = @_;
1.479 raeburn 1266: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1267: my @parts;
1.288 albertel 1268: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1269: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1270: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1271: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1272: push(@parts, $1);
1.285 raeburn 1273: }
1274: }
1.286 albertel 1275: foreach my $part (@parts) {
1.470 raeburn 1276: if ($env{'request.role'} =~/^st/) {
1277: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1278: eq 'APPROX_ANS' ||
1279: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1280: eq 'EXACT_ANS') {
1281: $aggregate{$symb."\0".$part."\0correct"} = 1;
1282: }
1283: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1284: $aggregate{$symb."\0".$part."\0users"} = 1;
1285: } else {
1286: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1287: if ($last_reset) {
1288: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1289: $aggregate{$symb."\0".$part."\0users"} = 1;
1290: }
1291: }
1292: }
1293: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1294: }
1.470 raeburn 1295: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1296: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1297: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1298: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1299: $randtrycounter{$symb."\0".$part} = 1;
1300: } else {
1301: $anoncounter{$symb."\0".$part} = 1;
1302: }
1.470 raeburn 1303: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1304: if ($needsrelease) {
1305: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1306: if ($curr_required eq '') {
1.471 raeburn 1307: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1308: } else {
1309: my ($currmajor,$currminor) = split(/\./,$curr_required);
1310: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1311: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1312: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1313: }
1.292 raeburn 1314: }
1315: }
1.285 raeburn 1316: }
1317: }
1.512.2.9 raeburn 1318: if (keys(%aggregate) > 0) {
1.289 albertel 1319: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1320: $cdomain,$cname);
1321: }
1.472 raeburn 1322: if (keys(%anoncounter) > 0) {
1.481 raeburn 1323: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1324: $cdomain,$cname);
1.472 raeburn 1325: }
1.479 raeburn 1326: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1327: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1328: $cdomain,$cname);
1.479 raeburn 1329: }
1.292 raeburn 1330: }
1.289 albertel 1331:
1.65 albertel 1332: sub checkout_msg {
1.211 albertel 1333: my %lt=&Apache::lonlocal::texthash(
1334: 'resource'=>'The resource needs to be checked out',
1335: '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.',
1336: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1337: 'checkout'=>'Check out Exam for Viewing',
1338: 'checkout?'=>'Check out Exam?');
1.352 albertel 1339: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1340: return (<<ENDCHECKOUT);
1.211 albertel 1341: <h2>$lt{'resource'}</h2>
1342: <p>$lt{'id_expln'}</p>
1.449 bisitz 1343: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1344: <form name="checkout" method="post" action="$uri">
1.91 albertel 1345: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1346: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1347: </form>
1348: ENDCHECKOUT
1349: }
1350:
1.252 albertel 1351: sub firstaccess_msg {
1.253 albertel 1352: my ($time,$symb)=@_;
1.414 albertel 1353: my $result;
1354: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1355: if ($interval[1] eq 'map') {
1356: my ($map)=&Apache::lonnet::decode_symb($symb);
1357: my $foldertitle=&Apache::lonnet::gettitle($map);
1358:
1359: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1360: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1361: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1362: ,$foldertitle,$time)."</p>";
1.414 albertel 1363: } elsif ($interval[1] eq 'course') {
1364: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1365: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1366: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1367: ,$course,$time)."</p>";
1.414 albertel 1368: } else {
1369: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1370: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1371: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1372: ,$title,$time)."</p>";
1.414 albertel 1373: }
1.352 albertel 1374: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1375: my $buttontext = &mt('Show Resource');
1376: my $timertext = &mt('Start Timer?');
1.512.2.24 raeburn 1377: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1378: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1379: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1380: <input type="hidden" name="markaccess" value="yes" />
1.512.2.24 raeburn 1381: <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1382: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1383: </form>
1384: ENDCHECKOUT
1.414 albertel 1385: return $result;
1.252 albertel 1386: }
1387:
1.204 albertel 1388: sub init_problem_globals {
1389: my ($type)=@_;
1390: #initialize globals
1.308 foxr 1391: # For problems, we start out in part 0 (outside a <part> tag).
1392: # and part 0 is used to describe the main body of the <problem>
1393: #
1.204 albertel 1394: if ($type eq 'problem') {
1395: $Apache::inputtags::part='0';
1396: @Apache::inputtags::partlist=('0');
1.405 albertel 1397: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1398: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1399:
1.266 albertel 1400: } elsif ($type eq 'library') {
1.204 albertel 1401: $Apache::inputtags::part='';
1402: @Apache::inputtags::partlist=();
1.405 albertel 1403: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1404: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1405:
1.304 albertel 1406: } elsif ($type eq 'Task') {
1407: $Apache::inputtags::part='0';
1408: @Apache::inputtags::partlist=('0');
1.405 albertel 1409: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1410: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1411: }
1.477 www 1412: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1413: @Apache::inputtags::responselist = ();
1414: @Apache::inputtags::importlist = ();
1415: @Apache::inputtags::previous=();
1416: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1417: $Apache::inputtags::leniency='';
1.204 albertel 1418: $Apache::structuretags::printanswer='No';
1419: @Apache::structuretags::whileconds=();
1420: @Apache::structuretags::whilebody=();
1421: @Apache::structuretags::whileline=();
1422: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1423: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1424: undef($Apache::lonhomework::name);
1.358 albertel 1425: undef($Apache::lonhomework::default_type);
1426: undef($Apache::lonhomework::type);
1.204 albertel 1427: }
1428:
1429: sub reset_problem_globals {
1430: my ($type)=@_;
1431: undef(%Apache::lonhomework::history);
1432: undef(%Apache::lonhomework::results);
1433: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1434: undef($Apache::inputtags::leniency);
1.498 raeburn 1435: if ($type eq 'Task') {
1436: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1437: } elsif ($type eq 'problem') {
1438: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1439: }
1.208 albertel 1440: #don't undef this, lonhomework.pm takes care of this, we use this to
1441: #detect if we try to do 2 problems in one file
1442: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1443: undef($Apache::lonhomework::name);
1.358 albertel 1444: undef($Apache::lonhomework::default_type);
1445: undef($Apache::lonhomework::type);
1446: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1447: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1448: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1449: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1450: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1451: }
1452:
1.241 albertel 1453: sub set_problem_state {
1.240 albertel 1454: my ($part)=@_;
1.284 albertel 1455: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1456: $Apache::lonhomework::history{"resource.$part.solved"}=
1457: 'correct_by_student';
1458: }
1459: }
1460:
1.241 albertel 1461: sub get_problem_status {
1462: my ($part)=@_;
1.267 albertel 1463: my $problem_status;
1.284 albertel 1464: if ($env{'request.state'} eq 'construct' &&
1465: defined($env{'form.problemstatus'})) {
1466: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1467: } else {
1468: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1469: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1470: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1471: }
1472: return $problem_status;
1473: }
1474:
1.9 albertel 1475: sub start_problem {
1.326 albertel 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1477:
1.311 foxr 1478: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1479: if (!$Apache::lonxml::metamode) {
1480: &Apache::lonxml::startredirection();
1481: }
1.311 foxr 1482:
1.308 foxr 1483: # Problems don't nest and we don't allow more than one <problem> in
1484: # a .problem file.
1485: #
1.184 albertel 1486: if ( $Apache::inputtags::part ne '' ||
1487: $Apache::lonhomework::parsing_a_problem) {
1488: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1489: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1490: return '';
1491: }
1.184 albertel 1492:
1493: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1494: &init_problem_globals('problem');
1.166 albertel 1495:
1.284 albertel 1496: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1497: $Apache::lonhomework::scantronmode=1;
1498: }
1.161 albertel 1499:
1.159 albertel 1500: if ($target ne 'analyze') {
1.415 raeburn 1501: my $type = &Apache::lonnet::EXT('resource.0.type');
1502: $Apache::lonhomework::type=$type;
1.284 albertel 1503: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1504: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1505: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1506: }
1.332 albertel 1507: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1508: }
1.164 albertel 1509: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1510: my $uri=$env{'request.uri'};
1.159 albertel 1511: if ($uri=~/\.(\w+)$/) {
1512: $Apache::lonhomework::type=$1;
1513: &Apache::lonxml::debug("Using type of $1");
1514: } else {
1515: $Apache::lonhomework::type='problem';
1516: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1517: }
1.87 albertel 1518: }
1.301 albertel 1519: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1520:
1.363 albertel 1521: &initialize_storage();
1.389 albertel 1522: if ($target ne 'analyze'
1523: && $env{'request.state'} eq 'construct') {
1524: &set_problem_state('0');
1525: }
1526:
1.366 albertel 1527: if ($target eq 'web') {
1528: &Apache::lonxml::debug(" grading history ");
1529: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1530: }
1.363 albertel 1531:
1.159 albertel 1532: #added vars to the scripting enviroment
1.213 albertel 1533: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1534: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1535: &Apache::run::run($expression,$safeeval);
1.159 albertel 1536: my $status;
1537: my $accessmsg;
1.508 raeburn 1538: my $resource_due;
1.159 albertel 1539:
1.343 albertel 1540: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1541: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1542:
1543: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1544: $target eq 'tex') {
1545: if ($env{'form.markaccess'}) {
1546: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1547: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1548: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1549: $firstaccres = $is_set;
1550: }
1.506 raeburn 1551: }
1552:
1553: ($status,$accessmsg,$slot_name,$slot) =
1554: &Apache::lonhomework::check_slot_access('0','problem');
1555: push (@Apache::inputtags::status,$status);
1556: }
1557:
1.354 albertel 1558: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1559: || $target eq 'edit') {
1.512.2.9 raeburn 1560: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1561: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1562: $name);
1.512.2.9 raeburn 1563: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1564: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1565: if ($symb ne '') {
1566: my $navmap = Apache::lonnavmaps::navmap->new();
1567: if (ref($navmap)) {
1568: my $res = $navmap->getBySymb($symb);
1569: if (ref($res)) {
1570: $probpartlist = $res->parts();
1571: }
1.512.2.9 raeburn 1572: }
1573: }
1.350 albertel 1574: }
1575:
1.284 albertel 1576: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1577:
1.479 raeburn 1578: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1579: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1580: $target eq 'tex') {
1.479 raeburn 1581:
1.512.2.22 raeburn 1582: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1583: #handle rand seed in construction space
1.512.2.22 raeburn 1584: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1585: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1586: if ($partorder ne '') {
1587: @{$probpartlist} = split(/,/,$partorder);
1588: }
1589: }
1.512.2.9 raeburn 1590: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1591: if (($target eq 'grade') && &Apache::response::submitted()) {
1592: if ($Apache::lonhomework::type eq 'randomizetry') {
1593: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1594: } else {
1595: my @parts;
1596: if (ref($probpartlist) eq 'ARRAY') {
1597: @parts = @{$probpartlist};
1598: }
1599: unless (@parts) {
1600: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1601: }
1602: }
1603: }
1.479 raeburn 1604:
1.333 albertel 1605: if ($env{'request.state'} ne "construct" &&
1606: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1607: my $rndseedval = $rndseed;
1608: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1609: $rndseedval = $env{'form.rndseed'};
1610: }
1.162 albertel 1611: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1612: $rndseedval.'" />'.
1.462 raeburn 1613: '<input type="submit" name="resetdata"
1614: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1615: if (exists($env{'form.username'})) {
1616: $form_tag_start.=
1.164 albertel 1617: '<input type="hidden" name="username"
1.284 albertel 1618: value="'.$env{'form.username'}.'" />';
1.334 albertel 1619: }
1.462 raeburn 1620: if ($env{'request.role.adv'}) {
1621: $form_tag_start.= ' <label class="LC_nobreak">'
1622: .'<input type="checkbox" name="showallfoils"';
1623: if (defined($env{'form.showallfoils'})) {
1624: $form_tag_start.=' checked="checked"';
1625: }
1626: $form_tag_start.= ' /> '
1627: .&mt('Show All Foils')
1628: .'</label>';
1629: }
1.417 www 1630: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1631: $form_tag_start.=&practice_problem_header();
1.417 www 1632: }
1.462 raeburn 1633: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1634: }
1635: if (($env{'request.state'} ne "construct") &&
1636: ($Apache::lonhomework::type eq 'randomizetry') &&
1637: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1638: my @parts;
1639: if (ref($probpartlist) eq 'ARRAY') {
1640: @parts = @{$probpartlist};
1641: }
1642: unless (@parts) {
1643: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1644: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1645: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1646: }
1.479 raeburn 1647: }
1.324 albertel 1648:
1.159 albertel 1649: my $expression='$external::datestatus="'.$status.'";';
1650: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1651: &Apache::run::run($expression,$safeeval);
1652: &Apache::lonxml::debug("Got $status");
1.324 albertel 1653:
1.159 albertel 1654: if (( $status eq 'CLOSED' ) ||
1655: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1656: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1657: ( $status eq 'BANNED') ||
1.216 albertel 1658: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1659: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1660: ( $status eq 'NOTRESERVABLE') ||
1661: ( $status eq 'RESERVABLE') ||
1662: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1663: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1664: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1665: $style);
1.159 albertel 1666: if ( $target eq "web" ) {
1.343 albertel 1667: my $msg;
1.159 albertel 1668: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1669: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1670: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1671: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1672: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1673: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1674: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1675: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1676: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1677: }
1.216 albertel 1678: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1679: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1680: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1681: $msg.=&checkout_msg();
1.252 albertel 1682: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1683: if ($firstaccres) {
1684: $msg .= '<p class="LC_error">'.
1685: &mt('A problem occurred when trying to start the timer.').'</p>';
1686: }
1.253 albertel 1687: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1688: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1689: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1690: } elsif ($status eq 'RESERVABLE') {
1691: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1692: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1693: '<br />'.
1694: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1695: } elsif ($status eq 'RESERVABLE_LATER') {
1696: $msg.=&mt('Window to make a reservation will open [_1].',
1697: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1698: } elsif ($status eq 'NOTRESERVABLE') {
1699: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1700: }
1701: $result.=$msg.'<br />';
1702: } elsif ($target eq 'tex') {
1.332 albertel 1703: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1704: : '\begin{minipage}{\textwidth}';
1.443 foxr 1705: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1706: $startminipage.'\vskip 0 mm';
1.159 albertel 1707: if ($status eq 'UNAVAILABLE') {
1.512.2.27 raeburn 1708: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.');
1709: } elsif ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1710: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg";
1.159 albertel 1711: } else {
1.512.2.27 raeburn 1712: $result.=&mt('Problem is not open to be viewed.');
1.159 albertel 1713: }
1.512.2.27 raeburn 1714: $result .= " \\vskip 0 mm ";
1.159 albertel 1715: }
1.324 albertel 1716: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1717: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1718: $style);
1.324 albertel 1719: if ($target eq 'web') {
1.375 albertel 1720: $result .=
1721: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1722: } elsif ($target eq 'grade') {
1723: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1724: 'problem');
1725: }
1.159 albertel 1726: } elsif ($target eq 'web') {
1.508 raeburn 1727: if ($status eq 'CAN_ANSWER') {
1728: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1729: if ($slot_name ne '') {
1730: my $checked_in =
1731: $Apache::lonhomework::history{'resource.0.checkedin'};
1732: if ($checked_in eq '') {
1733: # unproctored slot access, self checkin
1734: &Apache::bridgetask::check_in('problem',undef,undef,
1735: $slot_name);
1736: $checked_in =
1737: $Apache::lonhomework::results{"resource.0.checkedin"};
1738: }
1739: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1740: if ($slot->{'starttime'} < time()) {
1741: if (!$resource_due) {
1742: $resource_due = $slot->{'endtime'};
1743: } elsif ($slot->{'endtime'} < $resource_due) {
1744: $resource_due = $slot->{'endtime'};
1745: }
1746: }
1747: }
1748: }
1749: if ($resource_due) {
1750: my $time_left = $resource_due - time();
1751: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1752: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1753: }
1754: }
1755: }
1.368 albertel 1756: $result.="\n $form_tag_start \t".
1.227 albertel 1757: '<input type="hidden" name="submitted" value="yes" />';
1758: # create a page header and exit
1.284 albertel 1759: if ($env{'request.state'} eq "construct") {
1760: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1761: if ($Apache::lonhomework::type eq 'practice') {
1762: $result.= '<input type="submit" name="resetdata" '.
1763: 'value="'.&mt('New Problem Variation').'" />'.
1764: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1765: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1766: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1767: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1768: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1769: }
1.227 albertel 1770: }
1771: # if we are viewing someone else preserve that info
1.284 albertel 1772: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1773: foreach my $field ('symb','courseid','domain','username') {
1774: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1775: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1776: }
1.479 raeburn 1777: foreach my $field ('trial','questiontype') {
1778: if ($env{"form.grade_$field"} ne '') {
1779: $result .= '<input type="hidden" name="grade_'.$field.
1780: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1781: }
1782: }
1.159 albertel 1783: }
1.490 raeburn 1784: if ($env{'form.grade_imsexport'}) {
1785: $result = '';
1786: }
1.159 albertel 1787: } elsif ($target eq 'tex') {
1.319 foxr 1788: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1789: $result .= &select_metadata_hyphenation();
1790:
1.319 foxr 1791:
1.99 sakharuk 1792: }
1.159 albertel 1793: } elsif ($target eq 'edit') {
1.343 albertel 1794: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1795: $Apache::lonxml::warnings_error_header=
1796: &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 1797: my $temp=&Apache::edit::insertlist($target,$token);
1798: $result.=$temp;
1799: } elsif ($target eq 'modified') {
1800: $result=$token->[4];
1801: } else {
1802: # page_start returned a starting result, delete it if we don't need it
1803: $result = '';
1.99 sakharuk 1804: }
1.159 albertel 1805: return $result;
1.9 albertel 1806: }
1807:
1808: sub end_problem {
1.159 albertel 1809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1810: my $result;
1.310 foxr 1811:
1.321 albertel 1812: if (!$Apache::lonxml::metamode) {
1813: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1814: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1815: }
1.319 foxr 1816:
1817: if ($target eq 'tex') {
1.321 albertel 1818: # Figure out the front matter and replace the
1819: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1820: # this in end_problem because whether or not we display due
1821: # dates depends on whether due dates have already been
1822: # displayed in the problem parts.
1823:
1.319 foxr 1824: my $frontmatter = '';
1825: my $startminipage = '';
1826: if (not $env{'form.problem_split'}=~/yes/) {
1827: $startminipage = '\begin{minipage}{\textwidth}';
1828: }
1829: my $id = $Apache::inputtags::part;
1830: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1831: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1832: my @packages = split(/,/,$packages);
1.319 foxr 1833: my $allow_print_points = 0;
1834: foreach my $partial_key (@packages) {
1835: if ($partial_key=~m/^part_0$/) {
1836: $allow_print_points=1;
1837: }
1838: }
1839: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1840: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1841: if (lc($env{'course.'.$env{'request.course.id'}.
1842: '.disableexampointprint'}) eq 'yes') {
1843: $allow_print_points=0;
1844: }
1845: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1846: 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 1847: &clear_required_languages();
1.319 foxr 1848: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1849: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1850:
1851: # Figure out what the due date is and if we need to print
1852: # it in the problem header. We have been logging the
1853: # last due date written to file.
1854:
1855: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1856: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1857: my $duedate_text = &mt('Due date: [_1]'
1858: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1859: my $temp_file;
1860: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1861:
1862: # Figure out what the last printed due date is or set it
1863: # to the epoch if no duedates have been printed.
1864:
1865: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1866: if (-e $filename) {
1867: $temp_file = Apache::File->new($filename);
1868: my @due_file = <$temp_file>;
1869: $due_file_content = $due_file[$#due_file];
1870: chomp $due_file_content;
1871: }
1872:
1873: # We display the due date iff it is not the same as the last
1874: # duedate in problem header ($due_file_content), and
1875: # none of our parts displayed a duedate.
1876: #
1877: my $parts_with_displayduedate;
1878: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1879: $parts_with_displayduedate =
1880: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1881: } else {
1882: $parts_with_displayduedate = 0;
1883: }
1884: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1885: $temp_file = Apache::File->new('>'.$filename);
1886: print $temp_file "$duetime\n";
1887: if (not $env{'request.symb'} =~ m/\.page_/) {
1888: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1889: $frontmatter .= $begin_doc.
1.448 bisitz 1890: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1891: } else {
1892: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1893: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1894: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1895: }
1.319 foxr 1896: }
1897: } else {
1.448 bisitz 1898: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1899: }
1900: } else {
1901: if (not $env{'request.symb'} =~ m/\.page_/) {
1902: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1903: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1904: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1905: }
1.319 foxr 1906: } else {
1.381 albertel 1907: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1908: }
1909: }
1910: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1911: }
1912:
1.159 albertel 1913: my $status=$Apache::inputtags::status['-1'];
1914: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1915: $target eq 'tex') {
1.249 albertel 1916: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1917: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1918: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1919: &Apache::inputtags::grade;
1.324 albertel 1920: } elsif ($status eq 'NEEDS_CHECKIN') {
1921: # no need to grade, and don't want to hide data
1.249 albertel 1922: } else {
1923: # move any submission data to .hidden
1924: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1925: }
1.159 albertel 1926: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1927: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1928: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1929: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1930: # if part is zero, no <part>s existed, so we need show the current
1931: # grading status
1932: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1933: $result.= $gradestatus;
1934: }
1935: if (
1.284 albertel 1936: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1937: ($target eq 'answer') || ($target eq 'tex')
1938: ) {
1.490 raeburn 1939: if (($target ne 'tex') &&
1940: ($env{'form.answer_output_mode'} ne 'tex') &&
1941: (!$env{'form.grade_imsexport'})) {
1.254 www 1942: $result.="</form>";
1.159 albertel 1943: }
1944: if ($target eq 'web') {
1.507 raeburn 1945: #
1946: # Closing </body></html> not added by end_page().
1947: # Added separately at end of this routine, after added
1948: # <script></script> so document will be valid xhtml.
1949: #
1950: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1951: 'notbody' => 1});
1.159 albertel 1952: } elsif ($target eq 'tex') {
1.178 sakharuk 1953: my $endminipage = '';
1.284 albertel 1954: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1955: $endminipage = '\end{minipage}';
1956: }
1.284 albertel 1957: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1958: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1959: } else {
1.262 sakharuk 1960: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1961: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1962: $result .= $endminipage.'\end{document} ';
1963: } else {
1.382 albertel 1964: $result .= $endminipage;
1.262 sakharuk 1965: }
1.159 albertel 1966: }
1967: }
1968: }
1.476 www 1969: if ($target eq 'web') {
1.512.2.21 raeburn 1970: $result.=&Apache::functionplotresponse::init_script();
1971: if ($Apache::lonhomework::default_type eq 'randomizetry') {
1972: my ($symb) = &Apache::lonnet::whichuser();
1973: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
1974: ($status eq 'CAN_ANSWER')) {
1975: unless (@Apache::inputtags::partlist > 1) {
1976: $result.= <<"ENDJS";
1977: <script type="text/javascript">
1978: // <![CDATA[
1979: \$(document).ready(function() {
1980: \$('#LC_randomizetry_header').css('display','block');
1981: });
1982: // ]]>
1983: </script>
1984: ENDJS
1985: }
1986: }
1987: }
1.476 www 1988: }
1.159 albertel 1989: if ($target eq 'grade') {
1990: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1991: &finalize_storage();
1992: }
1.284 albertel 1993: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1994: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1995: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1996: # normally we get it from above, but in CSTR
1.172 albertel 1997: # we always show answer mode too.
1.159 albertel 1998: }
1999: } elsif ($target eq 'meta') {
2000: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2001: @Apache::inputtags::response=();
1.159 albertel 2002: $result=&Apache::response::mandatory_part_meta;
2003: }
1.215 albertel 2004: $result.=&Apache::response::meta_part_order();
1.258 albertel 2005: $result.=&Apache::response::meta_response_order();
1.159 albertel 2006: } elsif ($target eq 'edit') {
2007: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2008: $result .= &problem_edit_footer();
1.320 albertel 2009: } elsif ($target eq 'modified') {
2010: $result .= $token->[2];
1.159 albertel 2011: }
1.155 albertel 2012:
1.284 albertel 2013: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2014: &Apache::inputtags::check_for_duplicate_ids();
2015: }
1.204 albertel 2016:
2017: &reset_problem_globals('problem');
1.159 albertel 2018:
1.502 foxr 2019: #
2020: # This shouild be just above the return so that the
2021: # time put in the javascript is as late as possible in the
2022: # computation:
2023: #
2024: if ($target eq 'web') {
1.512.2.25 raeburn 2025: $result .= &Apache::lonhtmlcommon::dash_to_minus_js().
2026: &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2027: #
2028: # Closing tags delayed so any <script></script> tags
2029: # not in head can appear inside body, for valid xhtml.
2030: #
2031: $result .= "</body>\n</html>";
1.502 foxr 2032: }
1.159 albertel 2033: return $result;
1.48 albertel 2034: }
2035:
1.108 albertel 2036:
1.48 albertel 2037: sub start_library {
1.159 albertel 2038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2039: my ($result,$form_tag_start);
1.371 albertel 2040: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2041: &init_problem_globals('library');
2042: $Apache::lonhomework::type='problem';
2043: }
1.159 albertel 2044: if ($target eq 'edit') {
1.343 albertel 2045: ($result,$form_tag_start)=
2046: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2047: 'Edit');
2048: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2049: my $temp=&Apache::edit::insertlist($target,$token);
2050: $result.=$temp;
2051: } elsif ($target eq 'modified') {
2052: $result=$token->[4];
1.340 albertel 2053: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2054: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2055: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2056: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2057: ($result,$form_tag_start)=
2058: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2059: $name);
1.479 raeburn 2060: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2061: $result.=" \n $form_tag_start".
1.159 albertel 2062: '<input type="hidden" name="submitted" value="yes" />';
2063: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2064: if ($Apache::lonhomework::type eq 'practice') {
2065: $result.= '<input type="submit" name="resetdata" '.
2066: 'value="'.&mt('New Problem Variation').'" />'.
2067: &practice_problem_header().'<hr />';
2068: }
1.159 albertel 2069: }
2070: return $result;
1.48 albertel 2071: }
2072:
2073: sub end_library {
1.159 albertel 2074: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2075: my $result='';
2076: if ($target eq 'edit') {
2077: $result=&problem_edit_footer();
1.371 albertel 2078: } elsif ($target eq 'web'
2079: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2080: && $env{'request.state'} eq "construct") {
1.349 albertel 2081: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2082: } elsif ($target eq 'meta') {
2083: $result.=&Apache::response::meta_response_order();
1.159 albertel 2084: }
1.371 albertel 2085: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2086: &reset_problem_globals('library');
2087: }
1.159 albertel 2088: return $result;
1.197 www 2089: }
2090:
2091: sub start_definetag {
1.326 albertel 2092: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2093:
2094: my $result;
2095:
2096: my $name = $token->[2]->{'name'};
1.326 albertel 2097: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2098: if ($target eq 'web') {
2099: if ($name=~/^\//) {
2100: $result=
2101: '<br /><table class="LC_sty_end"><tr><th>'.
2102: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2103: } else {
2104: $result=
2105: '<br /><table class="LC_sty_begin"><tr><th>'.
2106: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2107: }
2108: $skip = &HTML::Entities::encode($skip, '<>&"');
2109: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2110: }
2111: return $result;
2112: }
2113:
2114: sub end_definetag {
2115: return '';
1.1 albertel 2116: }
2117:
2118: sub start_block {
1.201 albertel 2119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2120:
2121: my $result;
1.1 albertel 2122:
1.339 albertel 2123: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2124: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2125: my $code = $token->[2]->{'condition'};
1.385 albertel 2126: if (defined($code) && $code ne '') {
1.137 albertel 2127: if (!$Apache::lonxml::default_homework_loaded) {
2128: &Apache::lonxml::default_homework_load($safeeval);
2129: }
1.131 albertel 2130: $result = &Apache::run::run($code,$safeeval);
2131: &Apache::lonxml::debug("block :$code: returned :$result:");
2132: } else {
2133: $result='1';
2134: }
2135: if ( ! $result ) {
1.201 albertel 2136: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2137: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2138: }
2139: $result='';
2140: } elsif ($target eq 'edit') {
2141: $result .=&Apache::edit::tag_start($target,$token);
2142: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2143: $token,40);
2144: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2145: } elsif ($target eq 'modified') {
2146: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2147: $safeeval,'condition');
2148: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2149: }
1.131 albertel 2150: return $result;
1.1 albertel 2151: }
2152:
2153: sub end_block {
1.167 www 2154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2155: my $result;
2156: if ($target eq "edit") {
2157: $result.= &Apache::edit::tag_end($target,$token,'');
2158: }
2159: return $result;
2160: }
1.500 foxr 2161: #
2162: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2163: # ...
2164: # </languageblock>
2165: #
2166: # This declares the intent to provide content that can be rendered in the
2167: # set of languages in the include specificatino but not in the exclude
2168: # specification. If a currently preferred language is in the include list
2169: # the content in the <languageblock>...</languageblock> is rendered
2170: # If the currently preferred language is in the exclude list,
2171: # the content in the <languageblock>..></languageblock is not rendered.
2172: #
2173: # Pathalogical case handling:
2174: # - Include specified, without the preferred language but exclude specified
2175: # also without the preferred langauge results in rendering the block.
2176: # - Exclude specified without include and excluden not containing a
2177: # preferred language renders the block.
2178: # - Include and exclude both specifying the preferred language does not
2179: # render the block.
2180: # - If neither include/exclude is specified, the block gets rendered.
2181: #
2182: # This tag has no effect when target is in {edit, modified}
2183: #
1.167 www 2184: sub start_languageblock {
1.201 albertel 2185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2186:
1.500 foxr 2187: my $result = '';
1.167 www 2188:
1.339 albertel 2189: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2190: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2191: my $include = $token->[2]->{'include'};
2192: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2193: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2194:
2195: # This should not even happen, since we should at least have the server language
2196:
2197: if (!$preferred_languages[0]) {
2198: $preferred_languages[0]='en';
2199: }
2200:
2201: # Now loop over all languages in order of preference
2202:
2203: my $render;
1.398 www 2204: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2205:
2206: # If neither include/nor exlude is present the block is going
2207: # to get rendered.
2208:
1.399 www 2209: my $found=0;
1.500 foxr 2210: $render=1;
2211:
2212: # If include is specified, don't render the block
2213: # unless the preferred language is included in the set.
2214:
1.398 www 2215: if ($include) {
1.500 foxr 2216: $render=0;
1.398 www 2217: foreach my $included_language (split(/\,/,$include)) {
2218: if ($included_language eq $preferred_language) {
1.500 foxr 2219: $render=1;
1.399 www 2220: $found=1;
1.500 foxr 2221: last; # Only need to find the first.
1.398 www 2222: }
2223: }
2224: }
1.500 foxr 2225: # Do we have an exclude argument?
2226: # If so, and one of the languages matches a preferred language
2227: # inhibit rendering the block. Note that in the pathalogical case the
2228: # author has specified a preferred language in both the include and exclude
2229: # attribte exclude is preferred.
2230:
1.398 www 2231: if ($exclude) {
1.500 foxr 2232: $render=1;
1.398 www 2233: foreach my $excluded_language (split(/\,/,$exclude)) {
2234: if ($excluded_language eq $preferred_language) {
1.500 foxr 2235: $render=0;
1.399 www 2236: $found=1;
1.500 foxr 2237: last; # Only need to find the first.
1.398 www 2238: }
2239: }
2240: }
1.500 foxr 2241: if ($found) {
2242: last; # Done on any match of include or exclude.
2243: }
1.398 www 2244: }
1.500 foxr 2245: # If $render not true skip the entire block until </languageblock>
2246: #
2247:
2248: if ( ! $render ) {
1.201 albertel 2249: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2250: $style);
2251: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2252: }
1.500 foxr 2253: # If $render is true, we've not skipped the contents of the <languageglock>
2254: # and the normal loncapa processing flow will render it as a matter of course.
2255:
1.167 www 2256: } elsif ($target eq 'edit') {
2257: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2258: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2259: $token,40);
1.211 albertel 2260: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2261: $token,40);
2262: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2263: } elsif ($target eq 'modified') {
2264: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2265: $safeeval,'include',
2266: 'exclude');
1.167 www 2267: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2268: }
2269: return $result;
2270: }
2271:
2272: sub end_languageblock {
1.170 www 2273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2274: my $result;
1.201 albertel 2275: if ($target eq "edit") {
1.170 www 2276: $result.= &Apache::edit::tag_end($target,$token,'');
2277: }
2278: return $result;
2279: }
1.500 foxr 2280: # languagblock specific tags:
2281: {
2282: # For chunks of a resource that has translations, this hash contains
2283: # the translations available indexed by language name.
2284: #
2285:
2286: my %available_texts;
1.170 www 2287:
1.500 foxr 2288: # <translated> starts a block of a resource that has multiple translations.
2289: # See the <lang> tag as well.
2290: # When </translated> is encountered if there is a translation for the
2291: # currently preferred language, that is rendered inthe web/tex/webgrade
2292: # targets. Otherwise, the default text is rendered.
2293: #
2294: # Note that <lang> is only registered for the duration of the
2295: # <translated>...</translated> block
2296: #
2297: # Pathalogical case handling:
2298: # - If there is no <lang> that specifies a 'default' and there is no
2299: # translation that matches a preferred language, nothing is rendered.
2300: # - Nested <translated>...</translated> might be linguistically supported by
2301: # XML due to the stack nature of tag registration(?) however the rendered
2302: # output will be incorrect because there is only one %available_texts
2303: # has and end_translated clears it.
2304: # - Material outside of a <lang>...</lang> block within the
2305: # <translated>...<translated> block won't render either e.g.:
2306: # <translated>
2307: # The following will be in your preferred langauge:
2308: # <lang which='en'>
2309: # This section in english
2310: # </lang>
2311: # <lang which='sgeiso'>
2312: # Hier es ist auf Deutsch.
2313: # </lang>
2314: # <lang which='sfriso'>
2315: # En Francais
2316: # </lang>
2317: # </translated>
2318: #
2319: # The introductory text prior to the first <lang> tag is not rendered.
2320: #
1.397 albertel 2321: sub start_translated {
2322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2323: &Apache::lonxml::register('Apache::structuretags',('lang'));
2324: undef(%available_texts);
2325: }
2326:
2327: sub end_translated {
2328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2329: my $result;
2330: #show the translation on viewable targets
2331: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2332: # or non-viewable targets, if it's embedded in something that
2333: # wants the output
2334: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2335: && &Apache::lonxml::in_redirection() ) ) {
2336: my @possibilities = keys(%available_texts);
2337: my $which =
2338: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2339: if ($target eq 'tex') {
2340: $result = &select_hyphenation($which);
2341: }
2342: $result .= $available_texts{$which};
2343: if ($target eq 'tex') {
2344: $result .= &select_metadata_hyphenation(); # Restore original language.
2345: }
1.397 albertel 2346: }
2347: undef(%available_texts);
2348: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2349: return $result;
2350: }
2351:
1.500 foxr 2352: # <lang [which='language-name'] [other='lang1,lang2...']>
2353: # Specifies that the block contained within it is a translation
2354: # for a specific language specified by the 'which' attribute. The
2355: # 'other' attribute can be used by itself or in conjunction with
2356: # which to specify this tag _may_ be used as a translation for some
2357: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2358: # specifying that the block provides a translation for US (primary)
2359: # Canadian, Australian and UK Englush.
2360: #
2361: # Comment: this seems a bit silly why not just support a list of languages
2362: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2363: #
2364: # Effect:
2365: # The material within the <lang>..</lang> block is stored in the
2366: # specified set of $available_texts hash entries, the appropriate one
2367: # is selected at </translated> time.
2368: #
2369: # Pathalogical case handling:
2370: # If a language occurs multiple times within a <translated> block,
2371: # only the last one is rendered e.g.:
2372: #
2373: # <translated>
2374: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2375: # Red green color blindness is quite common affecting about 7.8% of
2376: # the male population, but onloy about .65% of the female population.
2377: # </lang>
2378: # Red green colour blindness is quite common affecting about 7.8% of
2379: # the male population, but onloy about .65% of the female population.
2380: # <lang which='seniso', other='senisoCA,senisoAU'>
2381: # </translated>
2382: #
2383: # renders the correct spelling of color (colour) for people who have specified
2384: # a preferred language that is one of the British Commonwealth languages
2385: # even though those are also listed as valid selections for the US english
2386: # <lang> block.
2387: #
1.397 albertel 2388: sub start_lang {
2389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2390: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2391: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2392: &Apache::lonxml::startredirection();
2393: }
2394: return '';
2395: }
2396:
2397: sub end_lang {
2398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2399: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2400: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2401: my $result = &Apache::lonxml::endredirection();
2402: my $which = &Apache::lonxml::get_param('which',$parstack,
2403: $safeeval);
1.431 raeburn 2404: if ($which=~/\w/) {
2405: $available_texts{$which} = $result;
2406: }
2407: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2408: $safeeval);
2409: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2410: if ($language=~/\w/) {
2411: $available_texts{$language} = $result;
2412: }
1.427 bisitz 2413: }
2414:
1.397 albertel 2415: }
2416: return '';
2417: }
1.500 foxr 2418: } # end langauge block specific tags.
2419:
1.397 albertel 2420:
1.170 www 2421: sub start_instructorcomment {
1.201 albertel 2422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2423:
2424: my $result;
2425:
1.339 albertel 2426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2427: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2428: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2429: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2430: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2431: $parser,$style);
1.170 www 2432: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2433: }
2434: $result='';
2435: } elsif ($target eq 'edit') {
2436: $result .=&Apache::edit::tag_start($target,$token);
2437: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2438: }
2439: return $result;
2440: }
2441:
2442: sub end_instructorcomment {
1.159 albertel 2443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2444: my $result;
2445: if ($target eq "edit") {
2446: $result.= &Apache::edit::tag_end($target,$token,'');
2447: }
2448: return $result;
1.4 tsai 2449: }
2450:
2451: sub start_while {
1.326 albertel 2452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2453:
1.160 albertel 2454: my $result;
1.339 albertel 2455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2457: my $code = $token->[2]->{'condition'};
1.4 tsai 2458:
1.160 albertel 2459: push( @Apache::structuretags::whileconds, $code);
2460: if (!$Apache::lonxml::default_homework_loaded) {
2461: &Apache::lonxml::default_homework_load($safeeval);
2462: }
2463: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2464: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2465: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2466: push( @Apache::structuretags::whileline, $token->[5]);
2467: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2468: if ( $result ) {
2469: &Apache::lonxml::newparser($parser,\$bodytext);
2470: }
2471: } elsif ($target eq 'edit') {
2472: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2473: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2474: $token,40);
2475: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2476: } elsif ($target eq 'modified') {
2477: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2478: $safeeval,'condition');
2479: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2480: }
1.160 albertel 2481: return $result;
1.4 tsai 2482: }
2483:
2484: sub end_while {
1.159 albertel 2485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2486: my $result;
2487:
1.339 albertel 2488: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2489: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2490: my $code = pop(@Apache::structuretags::whileconds);
2491: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2492: my $line = pop(@Apache::structuretags::whileline);
2493: my $return = &Apache::run::run($code,$safeeval);
2494: my $starttime=time;
2495: my $error=0;
2496: while ($return) {
2497: if (time-$starttime >
2498: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2499: $return = 0; $error=1; next;
1.161 albertel 2500: }
2501: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2502: if ($target eq 'grade' || $target eq 'answer' ||
2503: $target eq 'analyze') {
2504: # grade/answer/analyze should produce no output but if we
2505: # are redirecting, the redirecter should know what to do
2506: # with the output
2507: if (!$Apache::lonxml::redirection) { undef($result); }
2508: }
1.161 albertel 2509: $return = &Apache::run::run($code,$safeeval);
2510: }
1.512.2.5 raeburn 2511: if ($error) {
2512: &Apache::lonxml::error(
2513: '<pre>'
2514: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2515: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2516: .&mt('This occurred while running <while> on line [_1].',
2517: $line)
2518: .'</pre>');
2519: }
1.160 albertel 2520: } elsif ($target eq "edit") {
2521: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2522: }
1.160 albertel 2523: return $result;
1.1 albertel 2524: }
1.6 tsai 2525:
1.160 albertel 2526: # <randomlist show="1">
1.6 tsai 2527: # <tag1>..</tag1>
2528: # <tag2>..</tag2>
2529: # <tag3>..</tag3>
1.160 albertel 2530: # ...
1.6 tsai 2531: # </randomlist>
2532: sub start_randomlist {
1.326 albertel 2533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2534: my $result;
1.339 albertel 2535: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2536: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2537: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2538: my $b_parser= HTML::LCParser->new(\$body);
2539: $b_parser->xml_mode(1);
2540: $b_parser->marked_sections(1);
1.159 albertel 2541: my $b_tok;
2542: my @randomlist;
2543: my $list_item;
2544: while($b_tok = $b_parser->get_token() ) {
2545: if($b_tok->[0] eq 'S') { # start tag
2546: # get content of the tag until matching end tag
2547: # get all text upto the matching tag
2548: # and push the content into @randomlist
2549: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2550: $b_parser);
2551: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2552: push(@randomlist,$list_item);
2553: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2554: # $list_item</b>";
2555: }
2556: if($b_tok->[0] eq 'T') { # text
2557: # what to do with text in between tags?
2558: # print "<b>TEXT $b_tok->[1]</b><br />";
2559: }
2560: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2561: # print "<b>END-TAG $b_tok->[1]</b><br />";
2562: # }
2563: }
1.303 albertel 2564: if (@randomlist) {
2565: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2566: if ($env{'form.code_for_randomlist'}) {
2567: &Apache::structuretags::shuffle(\@idx_arr,$target);
2568: undef($env{'form.code_for_randomlist'});
2569: } else {
2570: &Apache::structuretags::shuffle(\@idx_arr);
2571: }
1.303 albertel 2572: my $bodytext = '';
2573: my $show=$#randomlist;
2574: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2575: $showarg--;
2576: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2577: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2578: my @currlist;
2579: my $part = $Apache::inputtags::part;
2580: if ($part ne '') {
2581: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2582: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2583: if (!(grep(/^\Q$part\E$/,@currlist))) {
2584: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2585: }
2586: } else {
2587: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2588: }
2589: }
2590: }
1.512.2.9 raeburn 2591: for my $i (0 .. $show) {
2592: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2593: }
2594: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2595: }
2596: } elsif ($target eq 'edit' ) {
2597: $result .=&Apache::edit::tag_start($target,$token);
2598: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2599: $token,5);
2600: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2601: } elsif ($target eq 'modified' ) {
2602: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2603: $safeeval,'show');
2604: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2605: }
2606: return $result;
1.7 tsai 2607: }
2608:
2609: sub shuffle {
1.512.2.14 raeburn 2610: my ($a,$target) = @_;
1.7 tsai 2611: my $i;
1.303 albertel 2612: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2613: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2614: for($i=@$a;--$i;) {
2615: my $j=int(&Math::Random::random_uniform() * ($i+1));
2616: next if $i == $j;
2617: @$a[$i,$j] = @$a[$j,$i];
2618: }
1.251 albertel 2619: &Apache::response::poprandomnumber();
1.7 tsai 2620: }
1.6 tsai 2621: }
2622:
2623: sub end_randomlist {
1.159 albertel 2624: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2625: my $result;
2626: if ($target eq 'edit' ) {
2627: $result=&Apache::edit::tag_end($target,$token,
2628: 'End Randomly Parsed Block');
2629: }
2630: return $result;
1.6 tsai 2631: }
2632:
1.283 albertel 2633: sub ordered_show_check {
2634: my $last_part=$Apache::inputtags::partlist[-2];
2635: my $in_order=
2636: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2637: my $in_order_show=1;
2638: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2639: $in_order_show=&Apache::response::check_status($last_part);
2640: }
2641: return $in_order_show;
2642: }
2643:
1.469 www 2644:
2645: sub start_startpartmarker {
2646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2647: my $result='';
2648: if ($target eq 'edit') {
2649: $result=&Apache::edit::tag_start($target,$token);
2650: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2651: $result.=&Apache::edit::end_table();
2652:
2653: }
2654: return $result;
2655: }
2656:
2657: sub end_startpartmarker {
2658: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2659: my @result;
2660: if ($target eq 'edit') { $result[1]='no'; }
2661: return @result;
2662: }
2663:
2664: sub start_endpartmarker {
2665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2666: my $result='';
2667: if ($target eq 'edit') {
2668: $result=&Apache::edit::tag_start($target,$token);
2669: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2670: $result.=&Apache::edit::end_table();
2671:
2672: }
2673: return $result;
2674: }
2675:
2676: sub end_endpartmarker {
2677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2678: my @result;
2679: if ($target eq 'edit') { $result[1]='no'; }
2680: return @result;
2681: }
2682:
2683:
2684:
2685:
2686:
1.11 albertel 2687: sub start_part {
1.326 albertel 2688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2689: if (!$Apache::lonxml::metamode) {
2690: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2691: # duedates.
2692: }
1.159 albertel 2693: my $result='';
1.386 albertel 2694: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2695: $Apache::inputtags::part=$id;
1.177 albertel 2696: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2697: $Apache::inputtags::leniency='';
1.177 albertel 2698: @Apache::inputtags::response=();
1.159 albertel 2699: @Apache::inputtags::previous=();
2700: @Apache::inputtags::previous_version=();
1.405 albertel 2701: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2702: &Apache::response::reset_params();
2703:
1.159 albertel 2704: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2705: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2706: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2707: if ($Apache::lonhomework::type eq 'randomizetry') {
2708: my $rndseed=&setup_rndseed($safeeval,$target);
2709: if (($target eq 'grade') && &Apache::response::submitted()) {
2710: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2711: }
2712: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2713: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2714: }
1.283 albertel 2715: my $in_order_show=&ordered_show_check();
1.214 albertel 2716: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2717: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2718: &Apache::run::run($expression,$safeeval);
1.159 albertel 2719:
2720: if ($target eq 'meta') {
1.224 www 2721: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2722: return &Apache::response::mandatory_part_meta.
2723: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2724: } elsif ($target eq 'web' || $target eq 'grade' ||
2725: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2726: if ($hidden || !$in_order_show) {
1.326 albertel 2727: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2728: } else {
2729: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2730: push (@Apache::inputtags::status,$status);
2731: my $expression='$external::datestatus="'.$status.'";';
2732: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2733: &Apache::run::run($expression,$safeeval);
1.284 albertel 2734: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2735: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2736: }
1.216 albertel 2737: if (( $status eq 'CLOSED' ) ||
2738: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2739: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2740: ( $status eq 'BANNED') ||
2741: ( $status eq 'UNAVAILABLE') ||
2742: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2743: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2744: $style);
1.159 albertel 2745: if ( $target eq "web" ) {
1.211 albertel 2746: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2747: } elsif ( $target eq 'tex' ) {
1.284 albertel 2748: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2749: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2750: } else {
1.211 albertel 2751: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2752: }
1.159 albertel 2753: }
2754: } else {
2755: if ($target eq 'tex') {
1.284 albertel 2756: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2757: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2758: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2759: } else {
2760: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2761: }
1.195 sakharuk 2762: }
1.159 albertel 2763: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2764: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2765: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2766: my $allow_print_points = 0;
2767: foreach my $partial_key (@allkeys) {
1.230 albertel 2768: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2769: if ($1 ne '0') {$allow_print_points=1;}
2770: }
2771: }
1.275 albertel 2772: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2773: if (defined($maxtries) && $maxtries < 0) {
2774: $allow_print_points=0;
2775: }
1.302 albertel 2776: if (lc($env{'course.'.$env{'request.course.id'}.
2777: '.disableexampointprint'}) eq 'yes') {
2778: $allow_print_points=0;
2779: }
1.463 foxr 2780: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2781: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2782:
2783: }
1.233 www 2784: } elsif ($target eq 'web') {
1.479 raeburn 2785: if ($status eq 'CAN_ANSWER') {
2786: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2787: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 2788: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
2789: ($Apache::lonhomework::randomizetrypart)) &&
2790: ($Apache::lonhomework::type ne 'randomizetry')) {
2791: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2792: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2793: $Apache::lonhomework::randomizetrypart = 1;
2794: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 2795: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2796: }
2797: }
1.475 raeburn 2798: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2799: }
2800: }
2801: }
2802: } elsif ($target eq 'edit') {
2803: $result.=&Apache::edit::tag_start($target,$token);
2804: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2805: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2806: ' '.
2807: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2808: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2809: } elsif ($target eq 'modified') {
2810: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2811: $safeeval,'id','display');
1.159 albertel 2812: if ($constructtag) {
1.225 albertel 2813: #limiting ids to only letters numbers, and space
1.224 www 2814: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2815: $result = &Apache::edit::rebuild_tag($token);
2816: }
2817: }
2818: return $result;
1.11 albertel 2819: }
2820:
2821: sub end_part {
1.159 albertel 2822: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2823: &Apache::lonxml::debug("in end_part $target ");
2824: my $status=$Apache::inputtags::status['-1'];
2825: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2826: my $in_order_show=&ordered_show_check();
1.321 albertel 2827: my $result;
2828: if (!$Apache::lonxml::metamode) {
2829: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2830: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2831: }
1.312 albertel 2832: if ($target eq 'grade') {
1.249 albertel 2833: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2834: !$hidden && $in_order_show) {
1.311 foxr 2835: $result.=&Apache::inputtags::grade;
1.249 albertel 2836: } else {
2837: # move any submission data to .hidden
2838: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2839: }
1.283 albertel 2840: } elsif (($target eq 'web' || $target eq 'tex') &&
2841: !$hidden && $in_order_show) {
1.159 albertel 2842: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2843: $target);
1.490 raeburn 2844: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2845: ($env{'form.grade_imsexport'})) {
1.212 albertel 2846: $gradestatus='';
2847: }
1.311 foxr 2848: $result.=$gradestatus;
1.512.2.26 raeburn 2849: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {
2850: if (not $env{'form.problem_split'}=~/yes/) {
2851: $result.='\end{minipage}';
2852: }
2853: }
1.181 albertel 2854: } elsif ($target eq 'edit') {
1.311 foxr 2855: $result.=&Apache::edit::end_table();
1.322 albertel 2856: } elsif ($target eq 'modified') {
2857: $result .= $token->[2];
1.159 albertel 2858: }
2859: pop @Apache::inputtags::status;
2860: $Apache::inputtags::part='';
1.512.2.10 raeburn 2861: $Apache::inputtags::leniency='';
1.295 albertel 2862: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2863: return $result;
1.11 albertel 2864: }
1.1 albertel 2865:
1.25 albertel 2866: sub start_preduedate {
1.326 albertel 2867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2868: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2869: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2870: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2871: if (!$Apache::lonhomework::scantronmode &&
2872: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2873: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2874: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2875: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2876: }
1.24 albertel 2877: }
1.159 albertel 2878: return '';
1.24 albertel 2879: }
2880:
1.25 albertel 2881: sub end_preduedate {
1.159 albertel 2882: return '';
1.24 albertel 2883: }
2884:
1.369 foxr 2885: # In all the modes where <postanswerdate> text is
2886: # displayable, all we do is eat up the text between the start/stop
2887: # tags if the conditions are not right to display it.
1.25 albertel 2888: sub start_postanswerdate {
1.326 albertel 2889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2890: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2891: &Apache::lonnet::allowed('pav',
2892: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2893: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2894: $target eq 'tex' ) {
1.300 albertel 2895: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2896: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2897: (($target eq 'tex') && !$pav)) {
1.326 albertel 2898: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2899: }
2900: }
2901: return '';
1.24 albertel 2902: }
2903:
1.25 albertel 2904: sub end_postanswerdate {
1.159 albertel 2905: return '';
1.24 albertel 2906: }
2907:
1.25 albertel 2908: sub start_notsolved {
1.326 albertel 2909: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2910: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2911: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2912: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2913: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2914: if ($gradestatus =~ /^correct/ &&
2915: &Apache::response::show_answer()) {
1.159 albertel 2916: &Apache::lonxml::debug("skipping");
1.326 albertel 2917: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2918: }
1.24 albertel 2919: }
1.159 albertel 2920: return '';
1.24 albertel 2921: }
2922:
1.25 albertel 2923: sub end_notsolved {
1.159 albertel 2924: return '';
1.24 albertel 2925: }
2926:
2927: sub start_solved {
1.326 albertel 2928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2929: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2930: $target eq 'tex') {
2931: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2932: if ($gradestatus !~ /^correct/ ||
2933: !&Apache::response::show_answer()) {
1.326 albertel 2934: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2935: }
1.24 albertel 2936: }
1.159 albertel 2937: return '';
1.24 albertel 2938: }
2939:
2940: sub end_solved {
1.248 albertel 2941: return '';
2942: }
2943:
2944: sub start_problemtype {
1.326 albertel 2945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2946: my $result;
1.339 albertel 2947: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2948: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2949: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2950: if (!defined($mode)) { $mode='show'; }
2951: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2952: my $found=0;
2953: foreach my $type (split(',',$for)) {
2954: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2955: }
2956: if ($mode eq 'show' && !$found) {
1.326 albertel 2957: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2958: }
2959: if ($mode eq 'hide' && $found) {
1.326 albertel 2960: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2961: }
2962: } elsif ($target eq 'edit') {
2963: $result .=&Apache::edit::tag_start($target,$token);
2964: $result.=&Apache::edit::select_arg('Mode:','mode',
2965: [['show','Show'],
2966: ['hide','Hide']]
2967: ,$token);
2968: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2969: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2970: ['survey','Survey'],
1.465 raeburn 2971: ['surveycred','Survey (with credit)'],
2972: ['anonsurvey','Anonymous Survey'],
2973: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2974: ['problem','Homework Problem'],
1.479 raeburn 2975: ['practice','Practice Problem'],
2976: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2977: ,$token);
2978: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2979: } elsif ($target eq 'modified') {
2980: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2981: $safeeval,'mode','for');
2982: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2983: }
2984: return $result;
2985: }
2986:
2987: sub end_problemtype {
1.159 albertel 2988: return '';
1.24 albertel 2989: }
1.34 albertel 2990:
2991: sub start_startouttext {
1.159 albertel 2992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2993: my @result=(''.'');
2994: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2995:
2996: my $nesting =
2997: &Apache::lonxml::set_state('outtext',
2998: &Apache::lonxml::get_state('outtext')+1);
2999: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3000: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3001: }
1.159 albertel 3002: return (@result);
1.34 albertel 3003: }
1.159 albertel 3004:
1.34 albertel 3005: sub end_startouttext {
1.326 albertel 3006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3007: my $result='';
3008: my $text='';
3009: if ($target eq 'edit') {
1.424 foxr 3010: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3011: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3012: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3013: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3014: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3015: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3016: .'</span></td>'
1.512.2.12 raeburn 3017: .'<td><span id="math_'.$areaid.'">';
3018: if ($env{'environment.nocodemirror'}) {
3019: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3020: } else {
3021: $result.=' ';
3022: }
3023: $result.='</span></td>'
1.474 raeburn 3024: .'<td>'
3025: .&Apache::edit::insertlist($target,$token)
3026: .'</td>'
1.512.2.5 raeburn 3027: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3028: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3029: &Apache::edit::end_row().
1.362 albertel 3030: &Apache::edit::start_spanning_row()."\n".
1.255 www 3031: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3032: }
3033: if ($target eq 'modified') {
1.219 albertel 3034: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3035: }
3036: if ($target eq 'tex') {
3037: $result .= '\noindent ';
3038: }
3039: return $result;
1.34 albertel 3040: }
1.159 albertel 3041:
1.34 albertel 3042: sub start_endouttext {
1.159 albertel 3043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3044: my $result='';
3045: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3046: if ($target eq "modified") {
3047: $result='<endouttext />'.
1.377 albertel 3048: &Apache::edit::handle_insertafter('startouttext');
3049: }
1.404 albertel 3050:
3051: my $nesting =
3052: &Apache::lonxml::set_state('outtext',
3053: &Apache::lonxml::get_state('outtext')-1);
3054: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3055: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3056: &Apache::lonxml::set_state('outtext', 0);
3057: }
1.159 albertel 3058: return $result;
1.34 albertel 3059: }
1.159 albertel 3060:
1.34 albertel 3061: sub end_endouttext {
1.159 albertel 3062: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3063: my @result=('','');
3064: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3065: return (@result);
1.34 albertel 3066: }
1.159 albertel 3067:
1.45 albertel 3068: sub delete_startouttext {
1.326 albertel 3069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3070: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3071: my $text=$$parser['-1']->get_text("/endouttext");
3072: my $ntoken=$$parser['-1']->get_token();
3073: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3074: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3075: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3076: # they did the last time round
3077: &Apache::lonxml::increasedepth($ntoken);
3078: &Apache::lonxml::decreasedepth($ntoken);
3079: return 1;
1.193 www 3080: }
3081:
3082: sub start_simpleeditbutton {
3083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3084: my $result='';
1.284 albertel 3085: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3086: ($target eq 'web') &&
1.330 albertel 3087: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3088: my $url=$env{'request.noversionuri'};
1.193 www 3089: $url=~s/\?.*$//;
1.367 albertel 3090: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3091: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3092: # $result='<p class="LC_warning">'
3093: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3094: # .&Apache::loncommon::help_open_topic('Caching')
3095: # .'</p>';
1.486 www 3096: $result.=&Apache::loncommon::head_subbox(
3097: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3098: .&Apache::lonhtmlcommon::add_item_funclist(
3099: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3100: .&mt('Edit').'</a>')
1.486 www 3101: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3102:
1.193 www 3103: }
3104: return $result;
3105: }
3106:
3107: sub end_simpleeditbutton {
3108: return '';
1.45 albertel 3109: }
1.34 albertel 3110:
1.428 raeburn 3111: sub practice_problem_header {
3112: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3113: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3114: '</span>';
3115: }
3116:
1.479 raeburn 3117: sub randomizetry_problem_header {
1.512.2.21 raeburn 3118: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3119: my ($header,$text);
3120: if ($reqtries > 1) {
3121: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3122: if (($problemstatus eq 'no') ||
3123: ($problemstatus eq 'no_feedback_ever')) {
3124: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3125: } else {
3126: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3127: }
3128: } else {
3129: $header = &mt('New Problem Variation Each Try');
3130: if (($problemstatus eq 'no') ||
3131: ($problemstatus eq 'no_feedback_ever')) {
3132: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3133:
3134: } else {
3135: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3136: }
3137: }
1.512.2.21 raeburn 3138: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3139: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3140: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3141: } else {
3142: return '<h3 class="LC_info">'.$header.'</h3>'.
3143: '<span class="LC_info">'.$text.'</span><hr />';
3144: }
1.479 raeburn 3145: }
3146:
3147: sub randomizetry_part_header {
3148: my ($problemstatus,$reqtries,$num) = @_;
3149: my ($header,$text);
3150: if ($reqtries eq 'none') {
3151: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3152: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3153: } elsif ($reqtries > 1) {
3154: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3155: if (($problemstatus eq 'no') ||
3156: ($problemstatus eq 'no_feedback_ever')) {
3157: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3158: } else {
3159: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3160: }
3161: } else {
3162: $header = &mt('New Question Variation For Each Try');
3163: if (($problemstatus eq 'no') ||
3164: ($problemstatus eq 'no_feedback_ever')) {
3165: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3166: } else {
3167: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3168: }
3169: }
3170: my $output;
3171: if ($num > 1) {
3172: $output .= '<hr />';
3173: }
3174: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3175: '<span class="LC_info">'.$text.'</span><br /><br />';
3176: return $output;
3177: }
3178:
1.1 albertel 3179: 1;
3180: __END__
1.435 jms 3181:
3182: =pod
3183:
3184: =back
3185:
3186: =cut
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