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